233results about How to "Improve the degree of sealing" patented technology

The invention discloses a penetrating-sleeve-type three-airbag plugging device and a using method thereof. The penetrating-sleeve-type three-airbag plugging device comprises a first airbag, a second airbag, a third airbag, a hole sealing grouting pipe, a crack plugging pipe and a slurry guiding pipe. The three airbags are formed by sewing of elastic cloth sleeves and arranged on a gas extraction pipe in a sleeving mode. The hole sealing grouting pipe penetrates through the three airbags. A grouting opening is formed in the hole sealing grouting pipe in the airbags. The slurry guiding pipe penetrates through an inner hollow body of the second airbag. The two sides of the slurry guiding pipe are connected with a grouting section in a communicating mode. The crack plugging pipe penetrates through an inner hollow body of the first airbag. The end of the crack plugging pipe is located at the sewing line position on the exterior of the second airbag. Meanwhile, the invention discloses the using method of the penetrating-sleeve-type three-airbag plugging device. According to the penetrating-sleeve-type three-airbag plugging device and the using method thereof, 'three-plugging and two-grouting' hole sealing can be achieved through a pressure sensing overflow valve, and meanwhile, further plugging of a hole circumferential crack area can be achieved after hole sealing, so that 'three-plugging and three-grouting' type hole sealing of gas extraction is achieved wholly.

The invention relates to a high-temperature material vertical cooler and a waste heat using system. The high-temperature material vertical cooler comprises a cylindrical machine body supported by a support, the lower portion of the machine body is a cold air input section, the middle portion of the machine body is a cooling section, and the upper portion of the machine body is a material input section. In the cooling section, materials are cooled by means of combination of air draft and air blowing, heat of the high-temperature materials is obtained by cooling air and a cooling pipe by means of heat conduction and conversion, and preheating is conducted on circulating water through a water cooling wall; the high-temperature cooling air is used for overheating steam generated by the vertical cooler and after the temperature of the cooling air is decreased, the cooling air is led to preheat sintering raw materials in a sintering machine; after air heated by a condenser is mixed with the cold air and the air is led to a central funnel cap; steam generated by the vertical cooler is led to a turbine to drive an electric generator to generate power after passing through a steam super-heater; water output by the condenser and a steam pocket is led to a deoxidizing machine for deoxidization and then is led to a water cooling wall so that circulation can be achieved. The high-temperature material vertical cooler is compact in structure, capable of greatly reducing air leakage of a system, guaranteeing the quality of the materials and effectively recycling the waste heat of the high-temperature materials in a stepped mode.

The invention relates to a method for increasing the extracting and drilling stability of a low-permeability soft coal seam. The method comprises the following steps of (1) sleeving the outer side ofa drill pipe with a telescopic trailing sleeve; (2) deeply drilling into the coal seam; (3) withdrawing the drill pipe and the telescopic trailing sleeve from a drilling cavity after drilling into thespecified depth; (4) putting an anti-collapse pipe in the drilling cavity to the bottom of the drilling cavity; (5) respectively fixing two flexible air bags to both ends of a hole sealing pipe, andconnecting the two flexible air bags through a ventilating pipe; (6) respectively fixing a grouting hose and a return hose to the upper and lower ends of the flexible air bag which is close to the drilling cavity; (7) sleeving the anti-collapse pipe with the hole sealing pipe, and inflating the two flexible air bags, so that the two flexible air bags are tightly abutted with the inner wall of thedrilling cavity; (8) grouting the sealed space between the two flexible air bags; and (9) removing a grouting device after grouting is completed, and tightening the grouting hose and the return hose.According to the method, the extracting and drilling stability is guaranteed, so that the problems of the low hole forming rate and the poor hole sealing effect of the soft coal seam are solved.

The invention discloses a sensing device, and the device comprises the following parts: a pedestal which is provided with a first clamping part; a probe structure which comprises a second clamping part capable of being clamped with the first clamping part, a probe used for detecting body fluid analyte parameters and a connecting area electrically connected with the probe, wherein the second clamping part is arranged at one end of the probe structure, and the second clamping part and the first clamping part are clamped with each other so that the probe structure can be installed on the pedestal; and a transmitter structure, which comprises an emitter shell and an emitter arranged in the emitter shell, wherein the emitter shell is provided with a connecting hole, the connecting hole is matched with the probe structure in shape and structure, when the emitter structure is installed on the pedestal, the probe structure is located in the connecting hole, and the emitter is electrically connected with the connecting area so as to receive signals generated by the probe. Due to the design, the thickness of the sensing device is reduced, and the user experience is enhanced.

The invention provides a cable protection sleeve and a cable assembly. The cable protection sleeve includes a threading sleeve body, the periphery of the threading sleeve body is provided with a circular groove, at least one of two groove walls of the circular grove is provided with a sealing skirt edge extending towards the other groove wall opposite to the groove wall and used for pressing against a hole edge of a wire outlet hole, an outer circumferential surface or an inner circumferential surface of the sealing skirt edge is a conical surface used for being pushed by the hole edge of the wire outlet hole and clinging to the hole edge through radial slippage elastic deformation and axial compression elastic deformation so as to seal the wire outlet hole, and the conical surface gradually closes or opens in a direction from front to back. In use, radial and axial deformation of the sealing skirt edge on the groove wall of the circular groove occur when the sealing skirt edge is extruded by the hole edge of the wire outlet hole, and enable the sealing skirt edge to have a very large deformation amount, when deformation of the wall groove of the circular grove occurs due to a swing or bending of a cable, the sealing skirt edge does not completely disengage from the hole edge, thereby ensuring that the sealing skirt edge is capable of clinging to the hole edge at all times, and relatively high sealing waterproofness is achieved.

The invention provides a pavement water seepage instrument installation method and a pavement water seepage performance detection method. The pavement seepage instrument comprises: a pedestal, a conduit, a fixing seat, a valve, a measuring cylinder, and a sealing ring. The pavement water seepage instrument installation method comprises the steps of: step a, a waterproof edge is manufactured according to a bottom edge size of the sealing ring of the pavement seepage instrument, and the waterproof edge is subjected to seamless connection with the bottom of the pavement seepage instrument sealing ring; step b, a detection area is selected, and impurities such as dust on the area are removed; step c, the cleaned pavement is marked according to the profile of the waterproof edge of the pavement seepage instrument; step d, a groove is provided downward along the produced mark; step e, a sealing material is poured into the groove until the groove is fully filled; step f, a sealing material is applied on the sealing ring and the inner cavity of the pedestal, and the pavement seepage instrument is inserted with the sealing ring into the sealing material in the groove; and step g, the pavement seepage instrument is adjusted and fixed.

The invention discloses a mechanical press-bar type translation door sealing structure. The mechanical press-bar type translation door sealing structure includes a door plate, two connecting rod assemblies, two guide rails, two limiting blocks and a plurality of sets of elastic assemblies, wherein sliding groove assemblies are horizontally mounted at the top and bottom of the door plate, each connecting rod assembly is rotatably arranged on one sliding groove assembly, and a guide wheel assembly is horizontally mounted on each connecting rod assembly; the two guide rails are horizontally mounted on a wall body, and the two guide rails is fitted with the two guide wheel assemblies respectively in a sliding mode; each limiting block is provided with a sliding groove assembly correspondinglyand arranged at the tail end of each guide rail; and each set of elastic assembly is embedded in one sliding groove assembly, after elastic deformation of the elastic component due to driving, the sliding groove assemblies is generated longitudinal reciprocating motion through elastic force, when a door is opened, the elastic assemblies are in extend states, when the door is closed, the elastic assemblies are in compressed states, the problem that the noise reduction effect is decreased due to frequent movement of the translation door is avoided, and the noise reduction effect, sealing and durability of the translation door are improved.

The invention provides a bone conduction microphone. The bone conduction microphone comprises a shell, a seal cap connected with the shell, and a sound pick-up arranged in the shell. A connecting cylinder is arranged in the shell, and the sound pick-up is arranged in the connecting cylinder. With the structure, vibration on the shell can be prevented from entering into the sound pick-up through screening of the shell, noise can be avoided, and therefore sound articulation can be improved.

The invention discloses a fluid damping device used for coping with pipeline pressure jump. The fluid damping device comprises a box body. The box body is in a shape like a rotation body, wherein an ovoid curve rotates around the axis by a cycle to form the rotation body; and the two ends of the box body are coaxially provided with an outlet, an inlet and a connecting device for connecting an upstream gas pipeline with a downstream gas pipeline. Multiple groove pipes pointing to the outlet are evenly distributed on the inner wall, close to the outlet, of the box body in a spaced manner in a peripheral direction. The radian of the groove pipes is consistent with that of the inner wall of the box body. A plastic ball is smooth in surface and is movably placed in an inner cavity of the box body. The diameter of the plastic ball is larger than the diameter of the upstream gas pipeline and the diameter of the downstream gas pipeline. By changing the circulation area and the local resistance coefficient, the response time of downstream pressure jump is prolonged, the purpose that pressure is adjusted slowly is achieved, the structure and the principle are simple and clear, the fluid damping device is easy to mount and maintain, sensitive to response and fast in adjustment, the influence of upstream pressure jump on downstream pipeline instruments and equipment is relieved, the operating cost of enterprises is lowered, and safe and stable operation of the pipelines is guaranteed.

The invention discloses a lithium ion battery injecting method through injection head with electrolyte container and elastic chuck, which comprises the following steps: plugging needle tube in the outlet hole of injection head into the battery injection hole to fix the injection head on the battery of the injected liquid through elastic material chuck; placing several batteries and injection head component into the injection chuck; placing the injection chuck with battery and injection head component into the injection machine; injecting the inlet hole through injection machine; stewing the battery after injecting; placing the battery and injection head into the chemical reacting machine; fetching the injection head. The invention can improve the sealing degree of needle pipe and battery injection hole, which possesses larger inlet hole on the electrolyte container of injection head, in order to improve the manufacturing efficiency.

The invention discloses a combined type combustion chamber for a two-stroke high-power cross-ratio aviation heavy oil plunger engine. The combined type combustion chamber comprises a cylinder body, a cylinder sleeve, a cylinder head, a plunger and a mono-block pump; the cylinder head is fixed to the top of the cylinder body, the cylinder sleeve is fixed in the cylinder body, and the plunger is arranged inside the cylinder sleeve; a concave pit A is designed in the middle of the top surface of the plunger, a concave pit B is designed in the middle of the bottom surface of the cylinder head, and the concave pit A and the concave pit B are all shallow pits; the concave pit A, the concave pit B and the cylinder sleeve are combined together to form the combined type combustion chamber; and the mono-block pump is fixed to the cylinder head, a nozzle of the mono-block pump extends into the combined type combustion chamber, and nozzle holes of the nozzle are located in the concave pit B. Two air inlets and one air outlet which are opposite to each other are designed and formed in the side wall of the lower portion of the cylinder body. According to the combined type combustion chamber, the structure is compact, the power to weight ratio is big, the combustion speed is high, and the maximum combustion pressure is small; the combustion temperature is low, and the air-exhausting quality is good; and the scavenging form is rotational flow scavenging, the charging loss is effectively lowered, and the volume efficiency is improved.

The invention provides a method for improving a grafting survival rate of plants. Operation is completed by means of a positioning rod set, two wrapping rings, two embedding parts and four threaded rods in cooperation. By means of the method for improving the grafting survival rate of the plants, the problems that after scions are grafted onto stocks, the outer portions of the joints of the scionsand the stocks need to be wrapped in gauze, with a nutrient solution, and plastic films, plant bodies which are just subjected to grafting are likely to have trouble in bearing the weights of the gauze and the films due to direct wrapping, consequently, the situation of secondary breaking arises subsequently, the survival rate of the plant bodies is reduced, moreover, the plastic films are fixedthrough adhesive tape after being wound around the outer portions of the gauze so that the plastic films can only be torn and removed later in most cases, most of the plastic films are disposable, andthe like can be solved.

The invention provides novel inorganic-inorganic composite paste. The inorganic-inorganic composite paste comprises the raw materials of a base material, a filler and a disperse-phase additive according to the mass ratio of (1-1.6):(1.2-2.3):(0.003-0.03), wherein the base material is nanoscale silica sol, the filler is one or more selected from the group consisting of alumina, silicon dioxide, fire clay and talcum powder, and the disperse-phase additive is one or more selected from the group consisting of silane coupling agents and cellulose substances. By filling a cavity between a coke ovenprotective plate and an oven door frame with the inorganic-inorganic composite paste in an injection mode, the sealing degree between the coke oven protective plate and the oven door frame can be increased, smoking and disordered emission at the oven door frame are lowered, the coke oven environment is improved, and meanwhile the impact force on an oven wall when a coke oven engine dismantles andsuspends an oven door is buffered.

The invention discloses a ventilation bubble box. The ventilation bubble box comprises a box body and a box cover. A circle of lower groove is formed in the top of the side wall of the box body. A first lower boss and a second lower boss are arranged on the inner side and the outer side of the lower groove correspondingly. A pair of lower handle grooves are symmetrically formed in the side portionof the box body. An upper boss is integrally formed at the bottom of the box cover. A circle of auxiliary boss is fixed to the inner side of the upper boss. A first upper groove is formed between theupper boss and the auxiliary boss. A second upper groove is formed in the outer side of the upper boss. A pair of upper handle grooves are symmetrically formed in the side portion of the box cover and communicate with the second upper groove. A layer of net-shaped protrusions are fixed to the bottom of the inner side of the box body. A plurality of ventilation holes are formed in the four side portions of the box body and internally provided with ventilation plugs. According to the ventilation bubble box, the connecting strength between the box body and the box cover is greatly improved; andmeanwhile, the net-shaped protrusions at the bottom of the box body can make a contained object suspend, water can fall into gaps in the net-shaped protrusions after long-time placement, and the contained object is prevented from being immersed in water.

The invention discloses a sealing hook embedding material for coke oven gaps. The sealing hook embedding material comprises the following effective components: nano silica sol serving as a continuousphase, and carbonized silicon cellulose powder, silicon dioxide powder, aluminum oxide, clinker refractory mortar and pitch coke powder or petroleum coke powder used as filler, wherein the mass part ratio of the continuous phase to the filler is 1: (1.85-3.0). In addition, the invention also discloses a sealing hook embedding material for coke oven gaps, the sealing hook embedding material is composed of nano silica sol and filler, the filler is composed of carbonized silicon cellulose powder, silicon dioxide powder, aluminum oxide, clinker refractory mortar and pitch coke powder or petroleumcoke powder, and the nano silica sol accounts for 25-35% of the mass of the sealing hook embedding material. In addition, the invention further discloses a manufacturing method of the sealing hook embedding material for coke oven gaps. The sealing hook embedding material disclosed by the invention has the characteristics of self-sintering, self-expansion, high temperature resistance and multiple pores, and can achieve high bonding strength with a cast steel component after being sintered.

The objective of the invention is to provide a high voltage electrical cabinet door sealing device comprising a high voltage electrical cabinet and a cabinet door. The cabinet door is arranged in the door frame of one side surface of the high voltage electrical cabinet. The high voltage electrical cabinet side surfaces of the upper and lower sides of the cabinet door are symmetrically provided with two slide fixing blocks. A door jacking device used for sealing the high voltage electrical cabinet door is arranged between the two slide fixing blocks. The door jacking device is composed of a horizontal electric push rod and a vertical electric push rod. The horizontal electric push rod is connected in a way of penetrating through a slide pole arranged between the two slide fixing blocks. An abutting plate is arranged between the horizontal electric push rod and the cabinet door. One end of the vertical electric push rod is connected with the slide fixing blocks, and the other end of the vertical electric push rod is connected with the connecting block of the horizontal electric push rod. Loosening of the cabinet door caused by long-time use can be prevented, the sealing degree can be enhanced, damage to the grid lines and the electrical devices can be prevented, the service life can be prolonged, the maintenance difficulty can be reduced and the operation and maintenance cost can be reduced.

The invention discloses an adjustable base assembly structure of a steel cofferdam. The adjustable base assembly structure comprises a lower base, an upper base and cofferdam side plates. A horizontallower base body and an inclined lower base body of the lower base are hinged together through a rotary shaft. A horizontal upper base body and the horizontal lower base body are fixedly connected together through a fixed connecting plate. An inclined upper base body is sleeved with a bottom sleeving groove of the inclined lower base body through a movable inserting plate. After the cofferdam sideplates penetrate the upper base from an upper slot, the lower portions of the cofferdam side plates are sleeved with the corresponding bottom sleeving groove, and the side faces of the adjacent cofferdam side plates are in embedded connection in a convex-concave fit manner. Meanwhile, a lifting adjusting mechanism is arranged between the inclined upper base body and the inclined lower base body.According to the adjustable base assembly structure, by means of the cooperating relation between the lower base and the upper base, the cofferdam side plates can be sealed and fixedly connected together, and a cofferdam body is formed. The lower base provides bottom supporting, the upper base provides middle supporting, and the overall structural strength is stable and reliable.

The invention discloses an electronic equipment safe cleaning device. The electronic equipment safe cleaning device comprises a box body, a transport mechanism, an opening-closing mechanism, an air blowing mechanism, a dust collecting and discharging mechanism and monitoring equipment; the opening-closing mechanism, the air blowing mechanism and the monitoring equipment are arranged on the box body in a supported manner, and the dust collecting and discharging mechanism is located at the left end of the box body and communicates with an inner cavity of the box body; the transport mechanism comprises a cross beam, supporting beams, cross beam lifting mechanisms, a walking mechanism, a lifting and rotating mechanism and a clamping mechanism, the cross beam and the supporting beams are slidably connected through the cross beam lifting mechanisms, the walking mechanism and the lifting and rotating mechanism are arranged on the cross beam in a supported manner, and the clamping mechanism is installed at the lower end of the lifting and rotating mechanism. By means of the electronic equipment safe cleaning device, the problems of cleaning, collecting and discharging of dust can be solved, harmless safety protection on working personnel is achieved, and safety of electronic equipment is also protected.

The invention discloses a gauze mask having a crease structure capable of guaranteeing flat creases and three-dimensional supporting of the gauze mask. The gauze mask is mainly subjected to the following structures: two folding parts are connected to a main sheltering sheet and a main body sheet; and the two folding parts are provided with at least three folding sheets. Therefore, under a stretched state, the various folding sheets expand and mutually brace; and through bracing force of the various folding sheets in opposite directions, a natural three-dimensional structure is formed, so that the purposes that the gauze mask has relatively good supporting force and three-dimensional sense are achieved.

Upright type heat pipe chilling unit is in use for recycling residual heat. Being entered into heat pipe evaporator and heat pipe preheater in high, middle and low temperature, high heat granules are discharged from chain plate machine. Passing through the preheater and cooling end of heat pipe in the heat pipe evaporator, deoxidized pressed soft water absorbs heat so that temperature is increased gradually to form two-phase flow of vapor-liquid. After entering into steam drum and steam superheater, the said two-phase flow becomes saturated steam gas, which is output to users. Cold air is inducted to annular flue by fan; and another flow of gas from preheater is inducted to annular flue by negative pressure. Through heat exchange at preheater, the confluent flow in the annular flue is drained to dust removal system. The confluent flows of hot air from feeding port and hot air from evaporator enters into steam superheater and bustle pipe etc. and return back to the preheater circularly.

The invention discloses a multi-barrier-layer damping and buffer foam plastic box. The multi-barrier-layer damping and buffer foam plastic box comprises a box body, wherein lower lifting handle slotsare symmetrically formed in left and right side walls of the box body; the lower surface wall of the box body is fixedly equipped with a box bottom; a box body outer lug boss is arranged on the top ofthe box body; a box body inner groove is formed between the box body and the box body outer lug boss; slide slots are symmetrically formed in inner side wall of the body box outer lug boss; a box cover is arranged above the box body; and the lower surface wall of the box cover is equipped with a box cover outer lug boss. According to the multi-barrier-layer damping and buffer foam plastic box disclosed by the invention, hydraulic telescopic poles, slide partitions, supporting main rods, damping springs, damping sponges and hydraulic pumps are arranged, so that the problems that the foam box does not have a damping buffer function, the cover plate is not fixed firmly, sealing properties are poor, transportation quality is not guaranteed, barrier layers cannot move, and a space utilizationrate is low are solved.

The invention relates to a transformer oil pump of power-plant used to constrain the oil circulation cooling in great large-scale and medium size transformer, rectiformer, reactor, and electric locomotive transformer. It includes pump body, impeller, electric machine, base plugger, connection box, sealing piece, and so on; it uses octapole disk type electric machine, and pairing bearing with centripetal thrust force; it encapsulates by electric welding between oil pump body and plugger, arbor and plugger, it can decrease synchronous speed 250r / min, decrease buzz 5-10dB, prolong service life.

The invention relates to the technical field of transmission devices, in particular to a tableware transmission device for an infectious disease department ward. The tableware transmission device comprises a transmission channel, a negative pressure bin, an equipment bin, a disinfection bin and a transmission mechanism; the transmission channel comprises a channel chamber, a warehouse door, observation windows, channel walls and a patient window, side walls of the channel chamber are composed of the channel walls and the channel walls are sealed and connected with each other, the warehouse door and the patient window are installed at two ends of the channel chamber separately, and the observation windows are installed on the inner sides of the warehouse door and the patient window separately and are connected to the warehouse door and the patient window in the relative sliding connection through sealing joint strips; and the negative pressure bin further includes an air pump connectingport and an air exchange channel. Compared with an existing tableware transmission device for an infectious disease department ward, though the combination of multiple disinfection and sterilizationmeans, the killing rate of possible germs on tableware is greatly improved, at the same time, the installation is convenient, the device can be effectively cooperated with negative pressure ward use,the spread of the germs is effectively reduced, and the efficiency of isolation treatment is improved.

The invention provides a carbide slag slurry clear liquid recycling treatment system and a treatment process. The carbide slag slurry clear liquid recycling treatment system comprises a mounting bottom plate, supporting legs, supporting columns, a recycling box, a mixing mechanism and an impurity removal mechanism, and can solve the problems that a container for containing accumulated carbide slag slurry is difficult to be in a relatively sealed state during the carbide slag slurry clear liquid recycling treatment operation, the probability of permeation and liquid leakage of the carbide slag slurry is increased, the carbide slag slurry in a solid-liquid mixed state is difficult to disperse and flatten, the separation degree between impurities and clear liquid is reduced, floating impurities above the clear liquid are difficult to remove and separate quickly after solid-liquid separation of the carbide slag slurry, and solid residues accumulated at the bottom are more difficult to discharge synchronously after the clear liquid is discharged.

The invention provides a test interface structure which comprises a valve, a valve element, at least one elongated through hole, at least one pushing portion, a driving member and a wear-resistant structure. The valve has an inner cavity which is provided with a first opening communicated with a check valve, and a second opening communicated with test equipment, the valve element is movably mounted inside the inner cavity and can be at a first position abutting inside the check valve to enable the second opening to be communicated with the check valve and a second position extracting from the inside of the check valve to enable communication between the second opening and the check valve to be cut off, the elongated through holes are formed in the outer side wall of the valve and communicated with the inner cavity, the pushing portions are arranged on the valve element and extend out of the same through the elongated through holes, the driving member sleeves the outer wall of the valve in a threaded manner and can move axially along the valve rotatably and is provided with a driving portion used for driving the pushing portions, and the wear-resistant structure is arranged between the driving portion and the pushing portions and used for converting spiral extrusion driving of the driving portion to the pushing portions into axial extrusion driving. The test interface structure is compact in structure and high in sealability.

The invention relates to the technical field of paperboard production and processing, particularly to a paperboard processing scrap collecting device. The paperboard processing scrap collecting devicecomprises a processing box, and a plurality of friction bars are vertically arranged inside the processing box and can generate electricity by friction with the side walls of the processing box; thetop ends of the friction bars are rotatingly connected with water inlet pipes, the side walls of the water inlet pipes are provided with a plurality of water outlets, a water tank is arranged above the water inlet pipes, the bottom of the water tank is communicated with a plurality of water outlet pipes, and first hoses are communicated between the water outlet pipes and the water inlet pipes; thebottom ends of the friction bars are connected with hollow rotating shafts which are provided with second gears in a sleeve mode, and the second gears are engaged with a second rack; a second pistonis slidingly arranged inside the processing box and connected with a third rack which is engaged with a third gear, a transmission member is connected between the third gear and a first gear, and thethird gear is connected with the rotating shafts. The paperboard processing scrap collecting device solves the problem of environmental pollution caused by scattered scraps in the prior art.

The invention belongs to the technical field of two-way pipe joints, and specifically belongs to a variable-diameter two-way pipe joint. The variable-diameter two-way pipe joint comprises a pipe body;the inner wall of the pipe body is provided with uniformly arranged annular grooves; cavities of the two annular grooves are each internally slidably connected with a first gear plate; the contrary sides of the two first gear plates are correspondingly provided with uniformly arranged arc-shaped grooves in the inner walls of the end faces of the first gear plates; and the inner wall of each arc-shaped groove is internally slidably connected with a slider. The variable-diameter two-way pipe joint provided by the invention is mainly for solving the problems that most of the existing two-way pipe joints cannot realize a diameter change function; in the prior art, a pipe and a pipe joint are generally fixed together by means of rings, hot melting, adhesion and the like; these locking ways cause unstability because the joint of the pipe joint and the pipe is a smooth surface, the pipe easily falls, or complete sealing cannot be realized after connection because the joint of the pipe jointand the pipe is uneven, quick dismounting cannot be realized after connection, and after dismounting the pipe and the pipe joint will be seriously damaged.

The invention discloses a foam package box for waxberries. The foam package box comprises a box body and a box cover, a circle of lower groove is formed in the top of the side wall of the box body, the inner side and the outer side of the lower groove are a first lower boss and a second lower boss respectively, a pair of lower handle grooves are symmetrically formed in the side portions of the boxbody, an upper boss is integrally formed on the bottom of the box cover, a circle of auxiliary boss is fixed to the inner side of the upper boss, a first upper groove is formed between the upper bossand the auxiliary boss, a second upper groove is formed in the outer side of the upper boss, a pair of upper handle grooves are symmetrically formed in the side portions of the box cover and communicated with the second upper groove, and the box body is divided into four containing grooves for the waxberries through a cross-shaped dividing frame. Containing frames are arranged at the bottoms of the containing grooves for the waxberries, ice bag containing grooves are formed in the top of the part, between very two adjacent containing grooves for the waxberries, of the dividing frame, air holes are formed in the side walls of the ice bag containing grooves, and ice bags are contained in the ice bag containing grooves.

The invention belongs to the technical field of pipe joints, and particularly relates to a pipe joint monitored by utilizing a computer. The pipe joint monitored by utilizing the computer comprises aconnector and pipe bodies, the connector comprises a fixed pipe, first annular grooves are formed in positions, in the inner wall of the fixed pipe, on the end faces of the left and right sides of a bulge of the fixed pipe, threads are formed in the positions, on the outer surface of the fixing pipe, on the outer sides of the two first annular grooves, the pipe bodies are arranged on the two sidesof the fixed pipe, the outer surfaces of the two pipe bodies are rotationally connected with threaded rings through sliding rings, and first sliding grooves are formed in the groove bottoms of the two first annular grooves. The pipe joint monitored by utilizing the computer is mainly used for solving the problems that at present, when water leakage happens to all water supply pipelines which areexposed on the ground, used for conveying water to all households and connected through the pipe joint, workers cannot rapidly perceive the water leakage situation of the pipelines and cannot quicklyand accurately find out the water leakage positions of the pipelines at the same time, and therefore water source waste is caused, and meanwhile, household water consumption can further be influenced.