38results about How to "Plug tight" patented technology

An adjustable Bluetooth wireless earphone primarily comprises an earphone body pin-connecting with a link-part at the front upper portion thereof so that the earphone can be rotated in all direction using the link-part as an axis and the link-part connects with a plug-set. The plug-set can co-move with the link-part. When the plug-set plugged the ear of the user, using the feature that the earphone body can be rotated in all direction, so the earphone body can be pressed close to the cheek portion of the user to form an angle between the earphone body and the plug-set, such that the plugged plug-set may stay more tightly on the ear of the user and not drop off easily.

An adjustable Bluetooth wireless earphone primarily comprises an earphone body pin-connecting with a link-part at the front upper portion thereof so that the earphone can be rotated in all direction using the link-part as an axis and the link-part connects with a plug-set. The plug-set can co-move with the link-part. When the plug-set plugged the ear of the user, using the feature that the earphone body can be rotated in all direction, so the earphone body can be pressed close to the cheek portion of the user to form an angle between the earphone body and the plug-set, such that the plugged plug-set may stay more tightly on the ear of the user and not drop off easily.

The invention provides a unit modularized water cooling server capable of being rapidly mounted, relates to the technical field of servers, and in particular relates to improvement of a server heat dissipation system. The invention provides the unit modularized water cooling server capable of being rapidly mounted, which has a modularized design and has the advantages of capability of freely increasing and decreasing a water cooling module, direct contact between a cooling module and the server and good heat dissipation effect. According to the unit modularized water cooling server capable ofbeing rapidly mounted, the server comprises an equipment cabinet; the equipment cabinet is internally provided with at least one server module; each server module is provided with a water cooling system; each water cooling system comprises a water inlet, a water returning opening and a water cooling module, which are arranged on the equipment cabinet; each water cooling module is detachably connected with the corresponding water inlet and water returning opening. The unit modularized water cooling server capable of being rapidly mounted, provided by the invention, adopts the modularized design, the water cooling module can be freely increased and decreased, the cooling module can be in direct contact with the server, and the heat dissipation effect is good; the unit modularized water cooling server has the advantages of capability of freely increasing and decreasing the water cooling module and good heat dissipation effect.

The invention discloses a plug-in gear, which comprises a base wheel with a shaft hole in the center. The base wheel includes a left base wheel and a right base wheel fixedly connected coaxially, and the right base wheel is near the left base wheel. The outer circular surface is evenly spaced with right insertion slots arranged axially along the right base wheel, and the corresponding insertion slots of the left base wheel are provided with symmetrical left insertion slots, and the left insertion slot and the right insertion slot The size and structure of the slots are the same and the cross-section is L-shaped. A tooth block is fitted in each of the insertion slots. The tooth block includes a gear tooth part and an insertion joint that is respectively matched with the left insertion slot and the right insertion slot. The cross-section of the tooth part is trapezoidal, and the insertion part is inserted and fixed in the left insertion groove and the right insertion groove. The plug-in gear provided by the invention has simple structure, compact plug-in connection, gear teeth can be replaced at any time according to needs, and the use and maintenance cost is low.

The invention discloses a deep foundation pit anti-collapse structure and belongs to the technical field of cross-sea passage construction. The deep foundation pit anti-collapse structure comprises asupporting panel. By forming a soil heaping groove with a wavy structure in the section of the front side of the supporting panel, the deep foundation pit anti-collapse structure is beneficial for increasing the friction force with a protection slope to prevent the protection slope from collapsing to cause landslide; according to the deep foundation pit anti-collapse structure, two mounting grooves are also symmetrically formed in the end parts of the two sides of the supporting panel, linking mechanisms are arranged in the mounting grooves, outrigger components are driven by hand wheel components in the linking mechanisms to extend to be inserted in the ground, and the outrigger components can also be closely inserted in the ground under buffering effects of buffering rods even though theground is uneven; and meanwhile, the outrigger components drive diagonal bracing components to be opened in the extending process so that the diagonal bracing components are conveniently connected and fixed to a ground pile. The deep foundation pit anti-collapse structure has the advantages that the structural design is reasonable, the mounting is simple and convenient, the labor intensity of workers is reduced and the mounting efficiency is enhanced.

The invention relates to a water feeding connector device for a passenger car. The water feeding connector device for the passenger car comprises a tube, a rubber sleeve, a guiding barrel, a piston and water tube connector, wherein the tube is hollow, and openings are formed in two ends of the tube; the water tube connector is sealed and is detachably mounted at one end of the tube; the rubber sleeve is hollow, openings are formed in two ends of the rubber sleeve, the rubber sleeve is mounted at the other end of the tube in a sealed manner, and a compaction cavity is formed between the side wall of the rubber sleeve and the inner wall of the tube; the guiding barrel is a barrel of which the two ends are provided with openings, the guiding barrel is inserted in the tube, the inside of the guiding barrel is divided into a water inlet cavity and a piston cavity by a partition, the water inlet cavity and the piston cavity are independent from each other and are arranged coaxially, an exhaust hole is formed in the bottom wall of the piston cavity, water inlet holes are formed in the wall of the water inlet cavity, and an opening end of the water inlet cavity communicates with the watertube connector; the piston is axially slidably arranged in the piston cavity; a guiding tube is arranged at the end, which is close to the rubber sleeve, of the piston; the end, which is away from thepiston, of the guiding tube extends into the other end of the rubber sleeve; and a plurality of through holes are uniformly distributed in the side wall of the guiding tube. The water feeding connector device for the passenger car has the advantages that the device is convenient to assemble and disassemble, water feeding self-locking and automatic disassembling after water feeding is finished canbe realized, and thus, the labor intensity is relieved.

The invention provides an electric connector which comprises an electric connection socket and an electric connection contact pin. The electric connection socket at least comprises a conductive base capable of conducting electricity and an abutting spring, the conductive base is provided with a plugging groove, and the abutting spring is connected to the groove side wall of the plugging groove, has elasticity and can conduct electricity. The electric connection contact pin at least comprises a contact pin which can conduct electricity, extends outwards and can be inserted into the plugging groove in a matched manner, wherein the abutting spring can electrically conduct the contact pin and the conductive base after the contact pin is plugged in the plugging groove. According to the invention, by arranging the conductive and elastic abutting spring in the plugging groove, the abutting spring elastically deforms and clings to the outer wall of the contact pin when the contact pin is plugged in the plugging groove, thereby enabling the contact pin to be tightly connected with the conductive base, preventing loosening, avoiding the poor contact, and eliminating potential safety hazards.

The invention discloses solid-phase fermentation equipment for acid degradation of leachate mixed with kitchen waste. The structure of the solid-phase fermentation equipment comprises a side groove solid-phase machine box, a turnover cover plate, a butt joint machine box groove, a solid-liquid separation box, a human-machine interface, an electric control cabinet and a base plate. According to thesolid-phase fermentation equipment, the side groove solid-phase machine box is matched with the solid-liquid separation box to form a roller tube solid-phase difference speed three-rotation effect after placing the kitchen waste, the centrifugal and centripetal shear compression are formed, a vortex is pushed at a constant speed, and the guide elimination of the landfill leachate and the fermentation degradation and storage use of the terminal food compression emulsion are formed. Due to the scraping effect of an arc-petal knife plate in a side cover plate roller, the compression laminated layer is distributed according to the weight ratio, the quality classification and compression of food residues are also formed, the acidic stimulation odor emitted by the landfill leachate is subjectedto ventilation and solid-phase bottom-bit flat flow volatilization, the air quality concentration is prevented, a stable cyclone circulation effect is maintained, and the environmental protection degree of the kitchen waste mixed degradation fermentation is also improved.

The invention discloses a paper tube. A big regular hexagon is drawn on a piece of paper and a small regular hexagon is drawn in the middle of the big regular hexagon; the corresponding edges of the big and small regular hexagons are parallel; the edge length of the big regular hexagon is three times that of the small regular hexagon; 12 vertical lines 1 are drawn from the angles of the small regular hexagon to the nearest edges of the big regular hexagon; 6 connecting lines 2 are drawn from the angles of the small regular hexagon to the nearest angles of the big regular hexagon; 6 arc lines are drawn outside the big regular hexagon by using the total of each middle section of the big regular hexagon and a section in an anticlockwise direction as a chord length, and the chord height is one third of the length of the vertical lines 1; 6 arcs are folded to form a regular hexagon; a cylindrical base shape is formed by folding along the folding lines, and the folded triangular parts 4 are attached onto the outside of a cylinder; and folded triangular parts 3 are inserted into the arcs which are attached onto the outside of the cylinder, and the paper tube is formed. In the invention, only folding rather than adhering by an adhesive and binding is performed, so the manufacturing is simple; the inserted connection is tight and firm; the shape is unique and elegant; and both ornamental and practice value are achieved.

The invention relates to the technical field of teaching aids, and discloses a graphic display device for mathematics teaching, which comprises a bottom plate, mounting rods are symmetrically and fixedly connected to the upper surface of the bottom plate, a double-sided blackboard is arranged between the two mounting rods, the tops of the opposite sides of the two mounting rods are rotationally connected with turnover rods I through rotating shafts, and the turnover rods I are rotationally connected with turnover rods II through rotating shafts. The bottoms of the opposite sides of the two first overturning rods are rotationally connected with connecting rods through rotating shafts correspondingly, the opposite ends of the two connecting rods are rotationally connected with the two sides of the double-face blackboard through rotating shafts correspondingly, and a second overturning rod is arranged between the mounting rod and the double-face blackboard. The bottoms of the opposite sides of the two second overturning rods are rotationally connected with the opposite sides of the two mounting rods through rotating shafts correspondingly. The turnover rods I, the connecting rods and the turnover rods II which are arranged on the two mounting rods above the bottom plate are matched with the double-sided blackboard, so that the double-sided blackboard can be turned over during use.

The invention discloses an outdoor weather-resistant anti-corrosive pipeline and belongs to the field of anti-corrosive pipelines. The outdoor weather-resistant anti-corrosive pipeline comprises two pipe bodies. The sides, close to each other, of the two pipe bodies are both fixedly connected with connecting flanges. The two connecting flanges are fixedly connected through screws. The tops and thebottoms of the two connecting flanges are sleeved with arc-shaped clamp rings. The surfaces of the arc-shaped clamp rings are provided with external threads. The surfaces of the two pipe bodies are both sleeved with thread sleeves. The thread sleeves are in threaded connection with the arc-shaped clamp rings through the external threads. The sides, far away from each other, of the two thread sleeves are both rotatably connected with rotary pipes located on the surfaces of the pipe bodies. Through the outdoor weather-resistant anti-corrosive pipeline, the problems that the joints of most of pipelines are exposed outside, are likely to get rusty and get leaked through long-time washing of rainwater and other things, the service life of the pipelines is shortened and the pipelines cannot adapt to the weather like the winter and the summer with too large external temperature difference are solved.

The invention discloses a veneer connecting mechanism and installing method. A veneer forming a vertical frame plate is inserted into the veneer connecting mechanism in an interference fit mode through an integrated veneer connecting mechanism, then the veneer connecting mechanism is fixed to the lower portion of a high-position plate through screws, the vertical frame plate is formed in an assembled mode, a side veneer and the vertical veneer are only inserted in an interference fit mode, a supporting keel does not need to be additionally arranged beside a wall, operation is simplified, the application range is wide, meanwhile, in the cascade ceiling process, a ceiling low-position plate can be transversely arranged below the vertical veneer and used for supporting the vertical veneer, people do not need to worry that the vertical veneer falls off under the action of gravity, the method is simple and convenient to operate, few in installing procedures and quick and convenient to install, uninstalling is convenient, uninstalling actions are few, and meanwhile, sawtooth-shaped interference fit is adopted, so that inserting connection is fastened, when the veneer connecting mechanismis used for assembling the vertical frame plate of the cascade suspended ceiling, required materials needed in the process are few, the installing procedures are few, and material and manual installing cost is reduced.

The invention provides a mobile plugging structure. The mobile plugging structure includes a first plugging assembly and a second plugging assembly, wherein the first plugging assembly includes a first mounting seat and a first plug which are mutually connected, the second plugging assembly includes a second mounting seat and a second plug which are mutually connected, the first plug and the second plug are for plugging, and at least one group of the first plug and the first mounting seat and the second plug and the second mounting seat is in movable connection. The mobile plugging structure is advantaged in that at least one group of the first plug and the first mounting seat and the second plug and the second mounting seat is set to be in movable connection, when the first plug and the second plug are plugged by an automation device, the first plug and / or the second plug can be moved within a certain range, and thereby the first plug and the second plug can be easily inserted into position without any positional deviation, so the mobile plugging structure is suitable for use in automation equipment.

The invention discloses a refrigeration house plate edge milling machine which comprises a rack, wherein a straight line sliding rail is arranged on the rack; slidable sliding blocks are arranged on the straight line sliding rail; a motor mounting base is fixed on the sliding blocks; a motor is fixed on one side of the motor mounting base; a rotary shaft is vertically mounted below the motor; a milling cutter is mounted on the rotary shaft; the lower end of the rotary shaft is mounted on a bearing pedestal; the bearing pedestal is movably connected with the lower part of the rack; the milling cutter is formed by combining two first vertical milling cutters, two arc-shaped milling cutters and a second vertical milling cutter; the two arc-shaped milling cutters are mounted on two sides of the second vertical milling cutter; and the two first vertical milling cutters are mounted on outer sides of the two arc-shaped milling cutters. The refrigeration house plate edge milling machine saves plenty of time for manually repairing and maintaining a refrigeration house plate for the second time, and milled plate inserting connection holes are tidy and attractive and are tightly inserted.

The invention relates to a decoration screw, a screw decoration cover and a decoration screw assembly. A blind hole extending in the direction of the axis of a screw body is formed in the center of a screwing groove, the length of the blind hole extends downwards from the bottom face of the screwing groove, a distance is set between the bottom of the blind hole and the root portion of a screw head, and the set distance is not smaller than 2 mm. The screw decoration cover comprises a cover body, the upper end face of the cover body is a smooth surface, a containing groove is formed in the lower end face of the cover body, the depth of the containing groove is not smaller than the height of the screw head, and the diameter of the containing groove is not smaller than the diameter of the screw head so that the screw head can be contained during use. An insertion connecting pillar extending downwards is arranged in the middle of the containing groove, an elastic body is arranged on the periphery of the insertion connecting pillar, the diameter of the insertion connecting pillar is larger than the diameter of the blind hole, and the insertion connecting pillar is matched with the blind hole in an insertion connecting manner. The decoration screw assembly has the beneficial effects that mounting and demounting are convenient and fast, the decoration screw assembly is very firm after installation and is not likely to be loosened, , and the environment cannot be polluted.

The invention discloses a female needle base breakover test device and belongs to the field of medical mechanical equipment. A female needle base cannot be detected safely and effectively via technologies of the prior art, a conventional positioning device is normally used for conveying the female needle base and a catheter which is connected with the female needle base to a V-shaped groove and positioning the female needle base and the catheter; the female needle base can move easily under action of external force and therefore assembling failure can be caused. The female needle base breakover test device comprises a positioning mechanism used for positioning the catheter and the female needle base and a detection mechanism used for detecting whether the female needle base is in a breakover state; the positioning mechanism comprises a catheter clamping mechanism used for positioning the catheter and a clamping mechanism used for positioning the female needle base. The clamping mechanism is positioned between the catheter clamping mechanism and the detection mechanism. The catheter and the female needle base can be separately clamped via the positioning mechanism, the female needle base can be effectively fixed, convenience of detection can be realized for the detection mechanism, and detection safety and accuracy can be improved.

The invention discloses a hollow ultrathin-wall aluminum profile, and relates to the technical field of aluminum profiles. The hollow ultrathin-wall aluminum profile comprises an aluminum profile body, a first reinforcing plate and a second reinforcing plate are arranged in the aluminum profile body, a first connecting pile is arranged at one end of the aluminum profile body, a second connecting pile is arranged at the other end of the aluminum profile body, a fixing pile is fixedly connected to one surface of the first connecting pile, and a pile groove is formed in one surface of the second connecting pile; and reinforcing ribs are fixedly connected between the first reinforcing plate and the inner side wall of the aluminum profile body and between the second reinforcing plate and the inner side wall of the aluminum profile body, a plurality of arc-shaped clamping edges are fixedly connected to the two opposite side faces of the fixing pile, and arc-shaped clamping grooves are formed in the two opposite side faces of the pile groove. According to the hollow ultrathin-wall aluminum profile, by arranging the first reinforcing plate, the second reinforcing plate, the reinforcing ribs, the fixing pile, the pile groove, the arc-shaped clamping edges and the arc-shaped clamping grooves, the structural strength of the aluminum profile is enhanced, and the aluminum profile is more stable, firmer, higher in pressure resistance and stable in structure after being connected under the hollow light and thin structure.

The invention relates to the technical field of fuses, and discloses an intelligent fuse device based on Internet of Things technology, which includes a housing, a carrying case and a fuse. Both sides of the housing are fixedly connected with connecting grooves, and the inside of the connecting grooves are plugged into There are wires, fixed nuts are installed on the top and both sides of the connecting groove, and one end of the fixing nut penetrates into the inside of the connecting groove to connect with the wires. A movable groove is arranged at the bottom of the inner wall of the movable groove, and a limiting hole is arranged at the bottom of the inner wall of the movable groove. The present invention installs the bearing shell, and installs the fuse inside the bearing shell, then inserts the plug-in block into the shell from the through slot on the front of the shell, and inserts the plug-in block into the slot at the bottom of the load-bearing shell That is to say, the plug-in block at the bottom of the carrying case is closely connected with the conductive block, so that the power connection is more reliable, so that the carrying case can be easily taken out and replaced with a new fuse.

The invention provides an electrical connector, comprising an electrical connection socket and an electrical connection pin, the electrical connection socket at least includes a conductive seat capable of conducting electricity and a resisting spring, the conductive seat is provided with an insertion slot, and the resisting spring is connected to The groove side wall of the insertion groove, the resistance spring is elastic and conductive; the electrical connection pins at least include conductive pins that extend outward and can be fitted and inserted into the insertion groove; wherein, The conflicting spring can electrically conduct the contact pin and the conductive seat after the contact pin is inserted into the insertion slot. In the present invention, an electrically conductive and elastic resistance spring is provided inside the insertion slot, so that the resistance spring elastically deforms when the contact pin is inserted into the insertion slot and clings to the outer wall of the contact pin so that the contact pin is closely connected with the conductive seat. Prevent loosening, avoid poor contact, and eliminate potential safety hazards.

The invention relates to the field of cylinder cover airtightness detection, in particular to a cylinder cover airtightness detector rear-blocking device. The cylinder cover airtightness detector rear-blocking device comprises a multi-purpose end plug, an air chamber, an air pipe, a reversing valve and a cylinder. The whole device is simple in structure; by means of the connection mode of one air pipe, one switch, one air chamber and one end plug, the corresponding end plug and the corresponding air chamber are selected and the corresponding air pipe is opened according to the size of rear holes of cylinder covers, pressurized air passes through the reversing valve and the air pipe, enters the air chamber and then pushes the end plug after entering the air chamber, and therefore the aim of blocking rear holes of different cylinder covers is achieved.

The invention relates to a socket type rebar cage structure in a steel pipe column. The socket type rebar cage structure comprises a plurality of rebar cage units which are arranged in the steel pipe column and connected with one another in an inserted mode. Each rebar cage unit comprises longitudinal ribs vertically arranged at the edge of the rebar cage unit at intervals and stirrups arranged on the peripheries of the longitudinal ribs in a hooping mode. A large end is formed in the position, at the top end of the corresponding rebar cage unit, of each longitudinal rib. A small end is formed in the position, at the bottom end of the corresponding rebar cage unit, of each longitudinal rib. In every two adjacent rebar cage units, the small ends located on the upper rebar cage unit are inserted in the large ends located on the lower rebar cage unit. According to the socket type rebar cage structure in the steel pipe column, the rebar cage structure is formed through the rebar cage units which are connected with one another in the inserted mode, in this way, workers do not need to descend into the steel pipe column to conduct operation when a rebar cage is installed in the steel pipe column, the problem that the operation space cannot be provided due to the narrow space in the steel pipe column is solved, the potential safety hazards caused by the bad operation environment of an inner cavity of the steel pipe column are also avoided, the construction operation safety of the steel pipe column is ensured, and the construction safety coefficient is increased.

The invention relates to the field of safety lead wires, and particularly discloses an external safety lead wire device for an electric power meter box, which comprises the electric power meter box, a mounting structure mounted on the electric power meter box, and a wiring terminal required to be connected with the mounting structure, the wiring terminal is of an L-shaped structure, and the wiring terminal is used for mounting a lead wire. The installation structure is used for being connected with equipment parts in the electric power meter box, and the installation structure is arranged on the bottom side of the electric power meter box. The wiring terminal and the wiring buckle which are mutually cohesive are combined in a plug-in contact mode, meanwhile, a locking structure is arranged on the side wall, the wiring terminal is stably inserted into the connector base, horizontal traction and longitudinal swing tension can be resisted, the wiring terminal is tightly inserted into the connector base, a limiting structure of the wiring terminal is triggered to reset through triggering of an internal bimetallic strip, and the wiring terminal is prevented from being damaged. The wiring terminal is driven to be separated from the plane and the side wall where the bimetallic strips on the two sides are located to achieve circuit breaking, and meanwhile troubleshooting can be easily achieved, and maintenance is convenient.

The invention discloses a paper tube. A big regular hexagon is drawn on a piece of paper and a small regular hexagon is drawn in the middle of the big regular hexagon; the corresponding edges of the big and small regular hexagons are parallel; the edge length of the big regular hexagon is three times that of the small regular hexagon; 12 vertical lines 1 are drawn from the angles of the small regular hexagon to the nearest edges of the big regular hexagon; 6 connecting lines 2 are drawn from the angles of the small regular hexagon to the nearest angles of the big regular hexagon; 6 arc lines are drawn outside the big regular hexagon by using the total of each middle section of the big regular hexagon and a section in an anticlockwise direction as a chord length, and the chord height is one third of the length of the vertical lines 1; 6 arcs are folded to form a regular hexagon; a cylindrical base shape is formed by folding along the folding lines, and the folded triangular parts 4 areattached onto the outside of a cylinder; and folded triangular parts 3 are inserted into the arcs which are attached onto the outside of the cylinder, and the paper tube is formed. In the invention, only folding rather than adhering by an adhesive and binding is performed, so the manufacturing is simple; the inserted connection is tight and firm; the shape is unique and elegant; and both ornamental and practice value are achieved.

This invention discloses a roofing insulating board with wedge, It solves the problem of present board: applying square butt joint or mismatch lap joint, by which the roofing thermal insulation system has bad integrality and wind force resistance, and it is easy to crack and creep, so the thermal insulation effect decreases greatly. The board of the invention has simple structure and can increase the integrality of the roofing thermal insulation system effectively and increase the wind resistance ability. The structure is: it has a board body which is made up of insulating layer with regular form; in the circumference of the layer is the wedge formed by the warp slot, and between the two boards socket the wedge.

The invention discloses a valve seat assembly, a ball valve and an assembling method of the valve seat assembly. The valve seat assembly comprises a fixator, a valve seat and a distracting ring. The ball valve comprises the valve seat assembly, a valve rod and a valve ball. The assembling method comprises the steps that the distracting ring is firstly inserted into the valve seat to form a combination; then the combination is mounted in a first annular groove of the fixator, and the end face of the distracting ring abuts against the groove bottom; and finally the valve seat is pressed into thefirst annular groove, so that the end face of the valve seat abuts against the groove bottom. According to the valve seat assembly of the structure, shaking of the valve seat in the first annular groove can be reduced, the valve seat is effectively prevented from being separated out of the first groove, and sealing between the valve seat and valve ball is guaranteed. Before the valve seat and thefirst annular groove are inserted in place, the width of the valve seat is equivalent to that of the first annular groove, and interference is avoided; the valve seat is pressed into the fixator through a press, the acting force is not too large, and the end, exposed out of the first annular groove, of the valve seat can be effectively prevented from being crushed.

The invention relates to the technical field of fuses, and discloses an intelligent fuse device based on the Internet of Things technology, and the device comprises a housing, a bearing housing, and afuse wire, two sides of the housing are fixedly connected with connecting grooves, wires are inserted into the connecting grooves, and the tops and two sides of the connecting grooves are provided with fixing nuts. One end of the fixing nut penetrates into the connecting groove to be connected with the wire, the bottom of the wire is provided with a movable block at the bottom of the inner wall of the connecting groove, a movable groove is formed in the bottom of the inner wall of the connecting groove below the movable block, and a limiting hole is formed in the bottom of the inner wall of the movable groove. The bearing shell is installed, the fuse wire is hidden in the bearing shell, then the inserting block is inserted into the shell from the through groove in the front face of the shell, the inserting block is connected with the inserting groove in the bottom of the bearing shell in an inserted mode, then the inserting block at the bottom of the bearing shell can be tightly connected with the conductive block, and power connection is firmer; therefore, the bearing shell can be conveniently taken out, and a new fuse wire can be conveniently replaced.

The invention discloses a vacuum heating bench. The bench comprises a shell, a cover plate, a touch screen and a heating plate. A cushion block is fixed to a surface of a bottom end of the shell. A touch screen is embedded in the surface of one side of the shell. An indicating lamp and a knob switch are embedded in one side, located on the touch screen, of the surface of the shell. A fan is fixedto a side end surface of one side of the shell. A heating plate is embedded in the surface of a top of the shell. A rubber pad is attached to an outer side of the heating plate. A first side plate anda second side plate are welded to positions, located on one side of the heating plate, of an upper surface of the shell. The cover plate is rotatably installed above the shell through the first sideplate and the second side plate, a clamping groove is arranged in the surface of the bottom end of the cover plate, and the size of the clamping groove is matched with the size of the rubber pad. Thebench has an advantage that a vacuum environment can be created during heating so that heat losses are reduced, and heating efficiency is improved.