81results about How to "Push and pull smoothly" patented technology

The invention is applied in the technical field of dish washers and discloses a dish washer liner pedestal component, assembling equipment of the dish washer liner pedestal component and an assembling method of the dish washer liner pedestal component. The dish washer liner pedestal component comprises a liner and a pedestal, wherein the pedestal is provided with a clamping groove; the edge of the liner is clamped into the clamping groove; the liner comprises an opened frame body and a rear plate connected to the opened frame body; the opened frame body comprises a top plate, a left side plate integrally molded on one side of the top plate and a right side plate integrally molded on the other side of the top plate; the left side plate and the right side plate are oppositely arranged; the rear plate is fixedly connected to or integrally molded on the opened frame body. The assembling equipment is used for manufacturing the dish washer liner pedestal component. According to the assembling method of the dish washer liner pedestal component, the assembling equipment of the dish washer liner pedestal component is adopted. According to the dish washer liner pedestal component, the assembling equipment of the dish washer liner pedestal component and the assembling method of the dish washer liner pedestal component, which are provided by the invention, the dish washer liner pedestal component is low in production cost, short in production period and high in product reliability and is conveniently used by a user.

The invention discloses refrigerating equipment and a folding storage rack of the refrigerating equipment. The folding storage rack of the refrigerating equipment comprises a rear storage rack and a front storage rack, wherein the rear storage rack is provided with a rear shelf and a left cantilever and a right cantilever which are positioned on two sides of the rear shelf respectively and arranged in parallel; the left cantilever and the right cantilever are positioned below the rear shelf and extend forwards out of a front end face of the rear shelf; first guide parts are formed on the leftcantilever and the right cantilever respectively; the front storage rack is arranged on the front side of the rear storage rack; second guide parts are formed on a left sidewall and a right sidewall of the front shelf respectively; the first guide parts are guide slots; the second guide parts are bumps which are arranged in the guide slots in a matching mode; and the first guide parts and the second guide parts are matched so as to guide the front storage rack to be lapped on the front side of the rear storage rack and to be folded below the rear storage rack. The folding storage rack of the refrigerating equipment provided by the embodiment of the invention has the advantages of stable structure and elegant appearance.

Disclosed is a double track heavy hanging folding door which comprises a door body and a combined fixed frame located on the periphery of the door body and used for mounting the door body. The door body comprises a first folding door body and a second folding door body which oppositely join together and have the same structure, wherein the first folding door body comprises a plurality of folding door leaf units rotatably connected together. The combined fixed frame comprises an upper combined sliding way and a lower combined sliding way which are located on the upper portions and the lower portions of the folding door leaf units correspondingly and slidably matched with the folding door leaf units. Vertical edge frames rotatably connected with the folding door leaf unit on the outmost side are fixed to the two corresponding ends of the upper combined sliding way and the lower combined sliding way. According to the double track heavy hanging folding door, the larger span and opening space are achieved, bearing capacity is higher, pushing and pulling are quite flexible and easy, using is convenient, sealing performance is good, waterproof performance is high, wind pressure resistant performance is high, and the appearance is concise and harmonious.

The invention discloses a multistage juice and peel separating device for passion fruits. The separating device includes a feeding mechanism, main shaft power mechanisms, grab bucket mechanisms, a linear cutting mechanism, juice separation mechanisms, spongy layer separation mechanisms, popup mechanisms, a push-in roller mechanism and a peel separation mechanism; the feeding mechanism is installedat the upper part on the rear side of a supporting platform; the two main shaft power mechanisms are symmetrically arranged on the supporting platform; four grab bucket mechanisms in circumferentialuniform distribution are installed on each main shaft power mechanism in a radial direction; the grab bucket mechanisms are provided with openings corresponding to the supporting platform; the linearcutting mechanism is installed on the rear side of the supporting platform; the two juice separation mechanisms are symmetrically installed at the lower parts of the openings; the two spongy layer separation mechanisms are symmetrically installed on the two sides of the supporting platform; the popup mechanisms are installed at the rear parts of the grab bucket mechanisms; the push-in roller mechanism is installed in front of the grab bucket mechanisms; and the peel separation mechanism is installed at the lower part of the discharging port of the push-in roller mechanism. Thus, the multistageprocessing of the juice and peels of the passion fruits can be realized, processing can be automated, so that the separating device is time saving and labor saving.

The invention discloses a drawer sliding rail for mounting a drawer in a drawer cabinet and supporting the drawer, comprising a fixed rail fixed on the drawer cabinet, a movable rail fixed on the drawer and a middle rail arranged between the movable rail and the fixed rail. The middle rail comprises two transverse plates and an incline plate connecting the two transverse plates, and the middle rail has a Z-shaped cross section; and the movable rail and the fixed rail are both provided with rail sleeves capable of sleeving the transverse plates in a sliding mode. The incline plate obliquely divides the area between the two rail sleeves into two effective using spaces with triangular or trapezoid cross section, thus larger expanding device can be installed, and the incline plate can be heightened without influencing the stability, and larger functional expanding space can be provided. Two incline plates with opposite incline direction at the middle rails of both sides of the drawer forms a triangle mechanical structure having the best stability with the drawer, and a transverse supporting force is further provided, such that the drawer is very stable and shakes a little in the drawing process, and the noise is efficiently reduced.

The invention discloses a wear and hydrolysis resistant PBT material, a preparation method and a dish washing machine. The wear and hydrolysis resistant PBT material comprises the following components in parts by weight: 60 to 95 parts of PBT resin, 0 to 35 parts of wear resistant agent, 0.2 to 5 parts of hydrolysis resistant agent, 0.2 to 0.5 part of composite antioxidant, and 0.4 to 1 part of processing auxiliary agent. The provided wear and hydrolysis resistant PBT material has the advantages of excellent hydrolysis resistant property, small surface friction coefficient, small wear coefficient, good weatherability, and stable property. The dish washing machine comprises parts that are prepared from the wear and hydrolysis resistant PBT material, so the dish washing machine has a stable performance and the user experience is improved.

The invention discloses a hidden-type protective security window which comprises a window frame, a casement and a folding security window screen. The window frame comprises an edge frame, an upper sliding rail and a lower sliding rail, an opening is formed in the inner side edge of the edge frame, openings are formed in the inner side edge and the outer side edge of a flat edge of the casement, the inner side opening of the flat edge of the casement is used for assembling glass, vertical bars arranged at intervals are connected through connecting bars to form the folding security window screen, a clamping groove is formed in the opening of the inner side edge of the edge frame, a cavity is reserved from the outer side edge of the clamping groove to the inner side edge of the edge frame, a clamping groove is formed in the opening of the outer side edge of the flat edge of the casement, a cavity is reserved from the outer side edge of the clamping groove of the opening of the outer side edge of the flat edge to the outer side edge of the flat edge, fixing bars connected with the vertical bars on two sides of the folding security window screen are arranged in the clamping groove of the edge frame and the clamping groove of the flat edge respectively, and the edge frame reserved cavity and the flat edge reserved cavity form a sealed space for containing the folded folding security window screen. The folding security window screen, the window frame and the casement are located on the same plane, and when the casement is closed, the folding security window screen is folded and hidden in the sealed cavity formed by the edge frame and the flat edge. When the casement is opened, the folding security window screen is stretched and opened in a screen shape, and therefore protective function and security function are achieved. The hidden-type protective security window is convenient to mount and will not damage the original appearance of a building.

The invention relates to a spare part assembly for quick disassembly and assembly of a top cover, comprising a box body with an open top end and a top cover detachably covering the open end of the boxbody, wherein one side of the open end of the box body is formed with a clamping groove, one end of the top cover is inserted into the clamping groove, and the other end is clamped on the side wall of the box body through a plurality of elastic clamping mechanisms. Wherein, when the top cover is removed, the elastic clamping mechanism is squeezed out of the box body, and the top cover is withdrawn from the clamping groove; When the top cover is installed, one end of the top cover is inserted into the clamping groove, the elastic clamping mechanism is pressed to correspond to the clamping point on the side wall of the box body, and the elastic clamping mechanism is released to be clamped on the corresponding clamping point. The spare part combination of the invention can first position thetop cover through the clamping groove and then realize clamping and fixing of the top cover through the elastic clamping mechanism by arranging the clamping groove and the elastic clamping mechanismat the open end of the box body, and the spare part combination top cover can be quickly disassembled and assembled without additional tools, and the operation is simple and convenient and the cost islow.

The invention provides a folding pivoting door, which comprises a door frame, and is characterized by also comprising two triangular top half door sheets, two triangular bottom half door sheets and a linkage handle, wherein the two top half door sheets are respectively hinged to the two bottom half door sheets to form top and bottom two rectangular door sheets which can be folded along a diagonal line; two ends of the linkage handle are respectively hinged to right angles of the two top half door sheets and are mutually linked; the bottom half door sheets are parallel with the door frame; the right angles of the bottom half door sheets are respectively hinged to the door frame. The folding pivoting door not only is capable of overcoming the defects of vertical hinged doors and sliding doors but also has the advantages of the vertical hinged doors and the sliding doors; the folding pivoting door can be stably opened and closed, is small in occupied area, can be smoothly pushed and pulled, and is small in noise.

The invention discloses a suspended type adjustable protective cover mechanism of a woodworking disk saw. The suspended type adjustable protective cover mechanism comprises a protective cover supporting system, a protective cover adjusting rod and a protective cover. The protective cover is located on the disk saw arranged on a base. The protective cover supporting system is connected with a protective cover mounting rod and a vertical supporting rod, wherein the protective cover mounting rod comprises a transverse supporting rod and is vertically connected with the transverse supporting rod. A shaft sleeve is arranged in the protective cover mounting rod. A connecting shaft is arranged on the protective cover and arranged on the shaft sleeve. A U-shaped groove is formed in the top end of the connecting shaft. The protective cover adjusting rod is fixed to the U-shaped groove located at the top end of the connecting shaft through a pin shaft. According to the suspended type adjustable protective cover mechanism of the woodworking disk saw, raw material drawing is convenient, and waste utilizing, energy saving and environmental protection are achieved; meanwhile, the height of the protective cover of the protective cover mechanism can be adjusted according to the actual requirement, using is convenient, and height adjusting is flexible; and by using the protective cover, an people hurting accident due to improper operation of a worker is avoided, so that construction safety is improved greatly, and excellent popularizing value is achieved.

The invention relates to a resectoscope and a sealing structure thereof. The resectoscope comprises an outer sheath, an inner sheath, a handle assembly, an endoscope, an electrode assembly and a flushing assembly, wherein the outer sheath is arranged outside the inner sheath in a sleeving manner, the rear end of the inner sheath is connected to the handle assembly, the endoscope and the electrodeassembly penetrate through the inner sheath, the rear end of the electrode assembly is connected to the handle assembly, and the flushing assembly is installed on the outer sheath. The resectoscope further comprises a sealing piece, wherein the sealing piece is installed at the joint of the inner sheath and the handle assembly, and the sealing piece is provided with an endoscope hole through whichthe endoscope can penetrate and a rod hole through which the electrode assembly can penetrate; a cutting groove is further formed in the sealing piece and communicates with the rod hole and the edgeof the sealing piece. According to the resectoscope and the sealing structure thereof, the sealing piece can simultaneously seal the endoscope and the electrode assembly, so that flushing fluid is prevented from permeating into the handle assembly and the electrode assembly on the other side of the sealing piece; the electrode assembly can be clamped into the rod hole from the cutting groove through the cutting groove, and thus installation and replacement are more convenient; and due to the cutting groove, the sealing piece is easier to deform, so that the electrode assembly and the sealing piece are pushed and pulled more smoothly.

The invention discloses a forming and extruding machine for a quincuncial plastic pipe. The forming and extruding machine for the quincuncial plastic pipe comprises a machine body base, an extruding device, a machine mould head, an electronic control device, a heating device and a cooling device. The extruding device comprises a machine barrel which is arranged on the machine body base. A crushing and melting channel is arranged in the machine barrel and a screw capable of rotating at a high speed is arranged in the crushing and melting channel. A material feeding port is arranged in the front end of the machine barrel and a material discharging port is arranged in the other end of the machine barrel. The electronic control device comprises a main motor used for the rotation of the screw. The heating device consists of a plurality of electric heating plates which are arranged at the bottom of the machine barrel. The electric heating plates are arranged along the length direction of the machine barrel at intervals evenly and connected with the electronic control device respectively. According to the forming and extruding machine for the quincuncial plastic pipe, the heating efficiency on plastic materials can be effectively improved, the complete melting of the plastic materials can be guaranteed and the flowability of the molten plastic materials is good, so that the pushing and extruding effects of the forming and extruding machine on the plastic materials and good product quality can be guaranteed.

The invention discloses a large-ventilation combined window. The combined window is characterized by being formed by combining a glass window, a security window, a screen window and a top sealing box;the glass window, the security window, the screen window and the top sealing box are formed by detachably splicing glass window components, security window components, screen window components and top sealing box components respectively, bottom outer frames of the glass window, the screen window and the security window can be integrated, and outer side frames of the glass window and the screen window can be integrated. The combined window integrates the wind protection, ventilation, anti-mosquito and anti-theft functions; the upper and lower sides of the glass window and the screen window areprovided with pulleys, so that push and pull are stable and save labor; the glass window is provided with a lower glass lifting mechanism, the natural ventilation rate can be increased, improvement of indoor air quality can be accelerated, and energy can be saved; the combined window is simple in structure, reasonable in design, excellent in performance, complete in function, safe and reliable, good in use effect, convenient to maintain, transport and install, capable of saving manpower and material resources and low in production and transportation cost, industrial production of whole windows can be realized, and remote large-batch supply can be met.

The invention discloses a single-rail enhanced ceramic tile cutting machine with a clamping mechanism, and belongs to the technical field of ceramic tile manual cutting. The right end of a connectingplate is fixedly connected with a sliding rod; supporting plates are arranged on the left side and the right side of the bottom of the sliding rod; clamping mechanisms are arranged at the bottoms of the two groups of supporting plates; the outer wall of the sliding rod is sleeved by a sliding base; connecting frames are fixed to the front side wall and the rear side wall of a handle correspondingly; the bottoms of the two sets of connecting frames are fixed together and then movably connected with a blade assembly; a clamping frame is fixed to the right side of the top of the base; a clampinggroove matched with the sliding rod is formed in the top of the clamping frame; a baffle plate is arranged at the top of the front side wall of the clamping frame; and the back end of the baffle plateruns through the clamping frame and the clamping groove in sequence and then, is abut against the back side wall of the clamping groove. The ceramic tile cutting machine is reasonable in structural design and can be pushed and pulled smoothly, the cutting straightness can be improved, ceramic tiles can be assuredly prevented from moving relative to the base, and the ceramic tile cutting straightness can be conveniently improved.

Disclosed is a drawer type door slide way with a self-locking function. The drawer type door slide way comprises an outer slide way, a guiding slide way, a middle slide way, a shifting slide way and an inner slide way, a transverse sliding slot is arranged at the rear end of the outer slide way, a limiting slot which bends downwards is arranged at the front end of the sliding slot, a sliding board is movably covered on the sliding slot, an extension spring is arranged between the rear end of the outer slide way and the sliding board, a longitudinal hole is opened on the sliding board, and a guiding sliding column which is movably arranged inside the sliding slot penetrates through the longitudinal hole; and the rear end of the inner slide way is provided with a pushing snapping slot, the front end of the pushing snapping slot is inclined and bent upwards to form a chute, the rear end of the pushing snapping slot is provided with an opening, and the guiding sliding column can movably penetrates through the pushing snapping slot. The drawer type door slide way with the self-locking function has the advantages that, by means of tensile forces of the extension spring, a door can be automatically closed, is guaranteed to be fastened automatically and is not prone to slide out; the door touches good due to the tensioning when the door is closed; and the drawer type door slide way is safe and reliable, compact in structure, high in integrity and applicable to refrigerators, wine cabinets, disinfection cabinets, furniture and the like.

The invention discloses intelligent batching equipment for factories, which comprises a batching mechanism, a stirring mechanism and a conveying mechanism, the stirring mechanism is arranged at the bottom of the batching mechanism in a communicating manner, and the conveying mechanism is arranged at the bottom of the stirring mechanism in a communicating manner; the batching mechanism comprises a batching assembly and a plurality of stretching assemblies arranged in the batching assembly; the batching assembly comprises a fixing plate, a plurality of batching barrels are arranged on the fixing plate in a penetrating mode, the batching barrels located at the two ends are fixedly connected to the stirring mechanism, two supporting sliding rods are symmetrically arranged on the circumferential side of each batching barrel, all the supporting sliding rods are distributed side by side on the two sides, and the ends of the supporting sliding rods located on the same side are jointly and fixedly connected with a baffle; the supporting sliding rods located on the same side are sleeved with a common sliding batten in a sliding mode. According to the invention, multiple ingredients can be mixed at the same time in the same proportion, the multiple ingredients are subjected to primary stirring and mixing and secondary stirring and mixing, and the production efficiency is greatly improved.

A removable limiting device of a furniture drawer comprises a drawer body pushed and pulled on a furniture body through a sliding rail assembly to be closed and opened. The drawer body comprises a left side plate, a right side plate, a rear back plate, a bottom fixing device and a front face plate; the left end and the right end of the rear back plate are each provided with a removable limiting unit, and alternatively the rear end of the left side plate and the rear end of the right side plate are each provided with a removable limiting unit; each limiting unit comprises a rolling wheel clamping mechanism and an adjusting mechanism, each rolling wheel clamping mechanism is clamped on the corresponding adjusting mechanism in a removable mode, each rolling wheel clamping mechanism at least comprises a rolling wheel, and the rolling wheel clamping mechanisms at least are in coupling connection with the left sidewall and the right sidewall of the furniture body in a rolling limiting mode when the drawer body is pushed and pulled to be closed and opened. By means of the structural improvement, the removable limiting device has the advantages of being simple and reasonable in structure, reliable in performance, low in manufacturing cost, rapid to operate, convenient to maintain, high in universality, smooth and free of swing in the push-pull process and high in practicability.

The invention provides a legal document storage safety device. In the legal field, various types of magnetized recording data including voice tapes, video tapes, magnetic disks, disks, soft disks, USB (Universal Serial Bus) flash disks, CDs (Compact Disc) and the like are more and more, and a common cabinet cannot easily resist invasion of magnetic fields, moisture and dust from the outer side. The legal document storage safety device comprises a cabinet door (1), wherein the cabinet door (1) is connected with a moisture-proof box (4), a three-point type linkage door lock (2), a cabinet door handle (18), a sealing strip (3) and a retractable device (5) respectively; the retractable device is connected with a cabinet body (9); the cabinet body is connected with an illumination lamp (6) and an inner cabinet door (8) respectively; the inner cabinet door is connected with an inner cabinet lock (7); the cabinet body is connected with drawers (15); the drawers are connected with push-pull handles (11), slide ways (12) and tab bars (10) respectively; the cabinet is connected with a base (13); the base is connected with movable rolling wheels (14). The legal document storage safety device provided by the invention is mainly used for storing legal documents.

The invention relates to the technical field of windows and doors, and discloses an anti-falling automatic cleaning window frame. The anti-falling automatic cleaning window frame comprises a window and a window frame below the window, and is characterized in that the window is fixedly connected with a pulley shaft, the pulley shaft is rotatably connected with a pulley, the pulley rolls on the window frame, and a sliding block capable of sliding is arranged in the window frame; and the sliding block can limit the upward movement of the pulley through a movable wheel, the sliding block is fixedly connected with a cleaning wheel shaft, and the cleaning wheel shaft is provided with an open hole. According to the anti-falling automatic cleaning window frame, the automatic locking sliding block is arranged, window rolling wheels can be automatically locked and limited when the window is installed, the rolling wheels are prevented from being separated from sliding rails, and therefore the window is prevented from being separated from the window frame; and meanwhile, cleaning rollers and an inflating device are arranged, and foreign matters on the inner side of the window frame can be cleared and blown away when the window is pulled, so that the window is pushed and pulled smoothly, and the risk that the window is separated from the window frame is reduced.

The invention provides a stacked rack for cultivating hermetia illucens larvae and fly maggots by kitchen waste. The stacked rack comprises a stacked rack front piece, a stacked rack back piece, a stacked rack base, a plurality of biotransformation culture pots used for cultivating hermetia illucens larvae and fly maggots and (n+1) layers of smooth strips, wherein the stacked rack front piece comprises supporting upright posts and front part cross beams; the stacked rack back piece comprises supporting upright posts, back part cross beams and back part vertical support upright posts; and the stacked rack base comprises a base cross beam and a nested base. Through the multilayer stacked rack and the stacked assembly of the multilayer stacked rack, the three-dimensional cultivation of the hermetia illucens larvae and fly maggots and the reutilization of the kitchen waste are realized; the space occupied by the three-dimensional cultivation is small; meanwhile, the assembly, dismounting and transportation are convenient; through the dismountable smooth strips, the goal of smoothly pushing and pulling the culture pots is achieved; labor consumption can be reduced; the space utilizationrate is high; the structure intensity is high; repeated utilization can be realized; and the economic benefits are high, and the like.

The invention relates to an automatic zero adjustment device for an electric steering engine. The automatic zero adjustment device comprises a controller, a proximity switch, a proximity switch support and an extension clamping device; the controller is respectively connected with the proximity switch and the electric steering engine; the extension clamping device comprises a base and a lengthenedrod body, the base is clamped on an output shaft of the electric steering engine, and the lengthened rod body is fixedly connected with the base; when the output shaft of the electric steering enginerotates and drives the base to rotate and the lengthened rod body reaches a triggering range of the proximity switch, output level of the proximity switch turns over, the controller controls the output shaft of the electric steering engine to stop rotating, and mechanical zero adjustment is completed; and the controller is used for acquiring an output voltage value of a sensor, rotating the sensor and stopping rotation of the sensor when an alarm gives an alarm, thus electrical zero adjustment is completed. By using the proximity switch, the extension clamping device, the controller and the alarm, automatic mechanical zero adjustment of the electric steering engine as well as automatic interpretation and hint when a zero position of the sensor is adjusted into position are realized, and efficient and precise zero adjustment of the electric steering engine is improved.

The invention discloses a water dispenser tray with a water leakage detection device, which comprises a tray (2) and a bracket (4) arranged at the bottom of the tray (2), wherein the front end part ofthe bottom end face of the tray (2) is sunken inwards to form a containing groove, one end of the bracket (4) is rotatably fixed on one side of the bottom of the containing groove through a pin (3),and the other end of the bracket is connected with the other side of the bottom of the containing groove through a spring (5); a plurality of leakage sensors (7) which are used to detect water leakagein the water dispenser are arranged on the surface and / or bottom end of the tray (2); the tray (2) is retracted arranged on the bottom of the water dispenser, so that the bracket (4) is squeezed intothe containing groove when the tray (2) retracts, and the bracket (4) pops out of the containing groove when the tray (2) extends, the water dispenser tray with the water leakage detection device issimple in structure and convenient and fast to install, and can detect whether the water dispenser leaks water or not timely and effectively, so that potential safety hazards are avoided.

The invention provides a guide rail frame assembly (100), which comprises a guide rail (20) and a frame (10); the guide rail comprises a fixing rail (22) and a sliding rail, an anti-turnover assembly (28) and at least one fixing assembly (26) are arranged on the sliding rail (24) at intervals; the frame (10) comprises a clamping part (12) which longitudinally extends the guide rail, and a fixing part (14) which is arranged in parallel with the clamping part (12); a fixing hole (16) adapting to the fixing assembly (26) and an anti-turnover hole (16) adapting to the anti-turnover assembly (28) are arranged on the fixing part (14), and the fixing assembly (26) and the anti-turnover assembly (28) can be inserted into the fixing hole (16) and the anti-turnover hole (18). The invention also provides a tray using the guide rail frame assembly, a refrigerator using the tray. The guide rail frame assembly provided by the invention has the advantages of simpleness in assembly and disassembly, convenience for replacement, difficulty in overturning, and safety in use.

The invention provides a side-pressing sliding door which comprises a door frame, a movable leaf, a fixed leaf and a handle. The fixed leaf and the door frame are fixedly connected, the movable leaf is movably connected with the door frame, the movable leaf can slide left and right relative to the fixed leaf, and the movable leaf is provided with a connecting rod, a connecting block and a base; the base is arranged on the side, close to the fixed leaf when the sliding door is closed, of the movable leaf; the connecting block is movably connected with the base; one end of the connecting rod isfixedly connected with the connecting block, and a mushroom-shaped head is arranged at the other end of the connecting rod; a clamping block is arranged on the edge, away from the door frame, of the fixed leaf and provided with a groove; the handle is arranged on the movable leaf; in the closing process of the sliding door, the mushroom-shaped head enters the groove along with the sliding door, the handle is rotated to enable the mushroom-shaped head to move horizontally to the deep direction and then to be clamped with the clamping block, and the movable leaf is driven to press the fixed leaf; the handle is rotated to the opposite direction, the mushroom-shaped head is reset, and the movable leaf is driven to be away from the fixed leaf. A magnetic rail or a balance wheel is arranged between the upper part of the door frame and the movable leaf to reduce friction, so that pushing and pulling are more convenient and smoother, and high airtightness is always maintained.

The invention discloses a hidden maintainable sliding door rail mounting structure which comprises a squire-tube cross beam (10), a square-tube sleeve (8) and a sliding door rail (7). The squire-tube cross beam (10) is fixed onto the top face of a building. The square-tube sleeve (8) is embedded in a partition wall keel. The lower side of the squire-tube cross beam (10) is sealed through a blockboard base layer (9). The sliding door rail (7) is inserted into the square-tube sleeve (8). The upper portion of the sliding door rail (7) is fixed onto the blockboard base layer (9) through screws. Movable cover plates (3) with wood veneers are mounted on two sides of the sliding door rail (7) respectively. The movable cover plates (3) with the wood veneers are fixed onto the blockboard base layer (9) through elastic touch buckles (5). Each elastic touch buckle (5) comprises a touch claw and a connecting piece. The touch claws are fixed onto the blockboard base layer (9), and the connecting pieces are fixed onto the movable cover plates with the wood veneers. The connecting pieces and the touch claws are integrally connected in a detachable mode. The hidden maintainable sliding door rail mounting structure is convenient and rapid to mount and convenient to disassemble, and overall mounting effect is optimized.

The invention discloses a refrigerator drawer sliding component which comprises a fixing guide rail, a supporting guide rail and a sliding guide rail, wherein the fixing guide rail is mounted on a drawer, and the supporting guide rail and the sliding guide rail are mounted on an inner container. Both the fixing guide rail and the supporting guide rail contact with the sliding guide rail to realize sliding fit. By the aid of surface contact of the fixing guide rail and the supporting guide rail with the sliding guide rail, sliding friction fit is realized, sliding friction provides proper friction force for the drawer as compared with rolling friction, the spatial position of displacement of the drawer is easily controlled, and the drawer cannot optionally move when a whole refrigerator vibrates or moves. The invention further discloses the refrigerator provided with the refrigerator drawer sliding component.

The invention relates to a spare part assembly for quick disassembly and assembly of a top cover, comprising a box body with an open top end and a top cover detachably covering the open end of the boxbody, wherein one side of the open end of the box body is formed with a clamping groove, one end of the top cover is inserted into the clamping groove, and the other end is clamped on the side wall of the box body through a plurality of elastic clamping mechanisms. Wherein, when the top cover is removed, the elastic clamping mechanism is squeezed out of the box body, and the top cover is withdrawn from the clamping groove; When the top cover is installed, one end of the top cover is inserted into the clamping groove, the elastic clamping mechanism is pressed to correspond to the clamping point on the side wall of the box body, and the elastic clamping mechanism is released to be clamped on the corresponding clamping point. The spare part combination of the invention can first position thetop cover through the clamping groove and then realize clamping and fixing of the top cover through the elastic clamping mechanism by arranging the clamping groove and the elastic clamping mechanismat the open end of the box body, and the spare part combination top cover can be quickly disassembled and assembled without additional tools, and the operation is simple and convenient and the cost islow.

The invention discloses a drawing-out type switchgear. The drawing-out type switchgear comprises a switchgear casing, a pedestal structure is arranged in the lower end of the switchgear casing, a cover plate is arranged in the upper end of the switchgear casing, the cover plate is provided with a lightning rod, the upper and lower ends of the switchgear casing are provided with upper and lower ventilating openings respectively, vertical and horizontal insulated separating plates are arranged in the switchgear casing, and the insulated separating plates divide the switchgear casing into four component parts, namely a bus cavity, a function unit cavity, a drawer cavity and a cable cavity. The drawing-out type switchgear of the invention is compact and reasonable in structure design, a drawer can be pulled and pushed smoothly, and the heat radiation and ventilating effects are good.