255results about How to "Improve production and assembly efficiency" patented technology

The invention relates to a connector socket capable of protecting a jack terminal, wherein the socket comprises a module base and m jack modules, wherein the jack modules are composed of jack bases, jacks and jack shielding plates; one end of the jack base is provided with n plugs which are arranged in order; each plug is composed of two side columns and a central column disposed between the two side columns; the gaps formed among the two side columns and the central column are used for containing the jack terminal on the jack; and the outlines of the two side columns, the central column and the jack terminal within the plug are linear; the module base comprises n*m plug cavities which are used for installing n*m plugs and jack terminals contained in the plugs, wherein each plug cavity isinternally provided with a side wall and a central wall, and the plug and the jack terminal are arranged in the cavity between the side wall and the central wall. The connector socket capable of protecting a jack terminal provided by the invention has the advantages that the jack modules can be prevented from damaging while assembling by providing the plugs which are used for protecting the jacks, the jack bases and the jacks are integrated by means of injection molding, and the production and assembly efficiencies are improved.

The invention discloses a centering and positioning fixture for automobile assembly, which comprises a positioning support provided with a workpiece positioning pin. A Z-directional support block is arranged at the bottom end of the positioning support; X-directional positioning pins are arranged on two sides of the positioning support positioned in the X direction of an automobile respectively; centering and positioning mechanisms are arranged on two sides of the positioning support positioned in the Y direction of the automobile respectively; and central lines of the centering and positioning mechanisms are overlapped. The centering and positioning fixture is used for centering and positioning workpieces when the workpieces are assembled, assembly adjusting time is shortened, assembly adjusting operation is decreased, the labor intensity of staff is reduced, errors of workpiece assembly are decreased, and production assembly efficiency, product quality and production efficiency are simultaneously improved.

The invention belongs to the technical field of sealants and particularly relates to a high-strength silane-modified polyether sealant for automobiles and a preparation method thereof. The high-strength silane-modified polyether sealant for automobiles comprises, by weight, 25-60 parts of a silane-modified polyether resin, 5-20 parts of an environment-friendly plasticizer, 15-30 parts of a bulkingfiller, 10-30 parts of reinforcing carbon black, 0-1 part of a thixotropic agent, 0-1 part of a UV absorber, 0-1 part of a light stabilizer, 0-2 parts of an antioxidant, 0-4 parts of a water removalagent, 0.2-0.8 parts of an adsorbent, 0.1-4 parts of a curing accelerator, 0.1-2 parts of an adhesion promoter and 0-1 part of a catalyst. The high-strength silane-modified polyether sealant solves the problem that the traditional silane-modified polyether sealant has low mechanical properties, improves the complicated construction process of the polyurethane sealant for the traditional windshieldglass, realizes primerless bonding, solves the problem that the polyurethane sealant for the traditional windshield glass produces foam at a high temperature and high humidity and solves the problemthat the polyurethane sealant for the traditional windshield glass has poor environmental friendliness.

The invention discloses a normally closed semiautomatic gas emergency cut-off magnetic valve comprising a magnetic coil assembly, a valve cover assembly, a valve body and an open valve handle assembly, wherein the magnetic coil assembly and the valve cover assembly are mutually blocked and can be disassembled; the valve cover assembly is in threaded connection and fixed with a gas inlet cavity of the valve body, the gas outlet cavity of the valve body is provided with the open valve handle assembly, the open valve handle assembly is fixedly connected with a check ring, the check ring is in threaded connection with a mandrel, a flat seal film is sleeved on a lower lug boss of the check ring, and a spring is sleeved on the excircle of the mandrel; a circuit board and a coil frame are arranged in the magnetic coil assembly, a charging capacitor is arranged on the circuit board, and a coil is coiled on the coil frame; a permanent magnet and a built-in iron core are arranged in the valve cover assembly; when the magnetic valve is energized, the capacitor is charged; when the magnetic valve is deenergized, the capacitor releases electric energy to lead the coil to work in order to generate an electromagnetic field which has opposite polarity with a permanent magnetic field, and the magnetic force of the permanent magnetic field is weakened to lead the spring to push the mandrel and the check ring to move in order to close the valve. The normally closed semiautomatic gas emergency cut-off magnetic valve is easier to replace the magnetic coil for being separating from the permanent magnet, has low power consumption, can be automatically closed and manually opened only when deenergized, can automatically recover when energized, and improves the safety.

The invention discloses a large and heavy numerical control static-pressure revolving platform. In the invention, a constant-current static-pressure closed guide rail is used for axial unloading and positioning; a constant-current opposed oil cavity is used for radial positioning; a radial damping oil cylinder is used for locking and applying Coulomb frictional damping; a double-lead worm gear isused for precision scale division; a closed loop control system consists of round gratings; and the revolving platform has high scale division accuracy, repeated location accuracy, heavy load and high rigidity and can realize accurate location at any angles and bear heavy cutting load. The large and heavy numerical control static-pressure revolving platform disclosed in the invention mainly comprises six parts of a supporting part, a scale division rotating part, a closed guide rail part, a worm part, a round grating full closed loop part and a radial locking part. The processing and assembling process of the large and heavy numerical control static-pressure revolving platform can improve the accuracy and the production efficiency of the static-pressure revolving platform, reduce the manufacturing cost and meet the requirement of the industrialization of large high-grate numerical control machine tools in China for large and heavy numerical control static-pressure revolving platforms.

The invention provides an interlocking assembly and a cooking utensil. The interlocking assembly comprises a door hook, an interlocking support, an interlocking rotary block, a positioning torsional spring and a buffer device. According to the scheme, the buffer device is additionally arranged on the basis of an existing interlocking assembly, a door body is in an open state, the interlocking rotary block is in an unlocking position, and the door hook and the interlocking rotary block are separated; and in the door closing process, the door hook abuts against the interlocking rotary block and then pushes the interlocking rotary block to rotate, the buffer device applies resistance to the interlocking rotary block in the process that the interlocking rotary block rotates to a locking position from the unlocking position, momentum of the door body is reduced so that impact to a box body front plate can be reduced when the door body is closed, and thus the problem that paint of the box body front plate or the door body is peeled off due to the fact that door closing force of a user or a tension hinge is too large is solved.

The invention relates to a jig for positioning a radiating fin so as to assemble the radiating fin, in particular to a jig for positioning a radiator assembly so as to assemble the radiator assembly. The jig comprises a main box body provided with a circuit control device and at least one positioning device for clamping a radiator. The positioning device comprises a concave guide positioning piece, two clamping blocks and two cylinders, wherein the concave guide positioning piece is fixedly locked on the main box body by a screw assembly, and both relative sides of both side walls of the concave guide positioning piece are provided with guide grooves; both corresponding positions of both side surfaces of each clamping block are provided with tenons; the two cylinders are fixedly locked to the relative side surfaces of the guide positioning piece of the clamping blocks respectively and connected to the circuit control device by a wire. The two clamping blocks are pushed by the two cylinders to move face to face or in the opposite direction so that a clamped, positioned or assembled main plate of the radiating fin is smoothly taken out; the jig can be also provided with a plurality of positioning devices for simultaneously positioning and assembling a plurality of radiating fins, thereby saving the assembly time and improving the assembly and manufacture efficiency.

The invention provides a steam exhausting system and a steam cooking device. The steam cooking device comprises an outer shell and a cooking chamber arranged in the outer shell, wherein steam exhaust ports are formedina chamber wall of the cooking chamber. The steam exhausting system comprises a steam exhausting box, wherein the steam exhausting box is fixedly mounted on an outer wall of the cooking chamber and is in sealing connection with the chamber wall of the cooking chamber; a through hole is formedinthe outer shell; the steam exhausting box locally penetrates through the through hole and extends out of the outer shell; a steam channel is arranged in the steam exhausting box; a steam inlet of the steam channel is communicated with the steam exhaust ports; and a steam outlet of the steam channel is located on the part of the steam exhausting box extending out of the outer shell. The steam exhausting system provided by the invention has the advantages that the structure is simple, the cost is low, the mounting is convenient, the production efficiency of the steam cooking device product is promoted and the production cost of the product is lowered. Besides, according to the invention, the steam outlet is formed on the part of the steam exhausting box extending out of the outer shell, so that the user can easily scrub the steam outlet part and the problem of difficulty in cleaning and even incapability of cleaning the steam outlet of the present steam cooking device product can be solved.

The invention discloses an automatic production line of a power distribution cabinet and a control method thereof. The automatic production line of the power distribution cabinet is provided with upper and lower conveying lines; an operator table is used to assemble a wiring board of the power distribution cabinet on a revolving tray; when the assembly is completed, the revolving tray is transferred to a transfer table; the transfer table transfers the revolving tray to the upper conveying line through the downward movement of a first drive device; the revolving tray is transferred to a lifting platform on the tail end through the upper conveying line to wait for an operator to fetch the finished wiring board; the lifting platform moves downwards to be flush with the lower conveying line through a second drive device; the empty revolving tray is transferred to the lower conveying line through a second drive device; and the revolving tray is transferred to a lifting platform on the front end through the lower conveying line, so that it is convenient for the operator to continue to assemble the wiring board. The space area is rationally utilize to arrange the double-layer conveying lines to complete the transferring of the revolving tray; it is no need to manually move the tray back and forth, most of the operation time of the operator is liberated, and the efficiency of assembling is improved.

The invention discloses a device for automatically installing blades on an oil pump motor. One side is equipped with a visual inspection mechanism that can automatically identify the front and back of the blade; the pick-up and discharge mechanism includes a vertical plate, a column, a rotating arm, and a rotating cylinder. The feeding mechanism and the blade pressing mechanism are respectively arranged on both sides of the installation vertical plate, and the blade pressing mechanism includes a lifting cylinder and a limit block. The invention is compact and easy to use, and can automatically load the blades of the oil pump, automatically identify the front and back, and automatically install them into the pump body.

The invention relates to a bladeless fan which comprises a base and a fan chimney arranged at the upper end of the base. An air inlet is formed in the side face or the bottom of the base, an impellerand a motor for generating airflow are arranged in the base, a big-end-down flared air outlet is formed in the upper end of the base, a connecting sleeve is arranged at the lower end of the fan chimney, a big-end-down flared air inlet hole is formed in the connecting sleeve, a large end of the flared air inlet hole is connected with a small end of the flared air outlet of the base, a small end ofthe flared air inlet hole is connected with a bottom opening of the fan chimney, a vertical channel for receiving the airflow is arranged in the fan chimney, the center of the vertical channel and thecenters of the flared air inlet hole and the flared air outlet are positioned on the same straight line, at least one row of longitudinally distributed air outlet narrow slits are formed in the surface of the fan chimney, and the airflow received by the vertical channel is jetted outwards from the air outlet narrow slits. The bladeless fan has the advantages of balanced and stable airflow, stability, comfort, high flow, strong wind power, reasonable structure, attractive appearance, low noise, convenience in disassembly and assembly and the like.

The invention discloses an interval theory-based geometric precision optimization allocation method for a precision horizontal machining center. The method comprises the following steps of (1) based on a multi-body system kinematics theory, building a mapping model between geometric errors and space errors of a machine tool; (2) based on an interval theory, performing sensitivity analysis on error sources; (3) based on the interval theory, building an interval optimization allocation model; and (4) based on a genetic algorithm, performing solving by applying MATLAB software to realize geometric precision optimization allocation. According to the method, the error sources difficult to realize are relaxed to a maximum feasible interval, so that the production cost is greatly reduced and the production and assembly efficiency of the machine tool is improved.

The invention discloses a handheld automatic screw machine. The handheld automatic screw machine comprises an arrangement machine and a material sucking and locking module; the arrangement machine comprises a machine box, an arrangement machine support, a hopper, a hopper plate, a hopper air cylinder, a direct vibration assembly, a screw separation assembly, and a gas source, wherein the arrangement machine support, the hopper, the hopper plate, the hopper air cylinder, the direct vibration assembly, the screw separation assembly, and the gas source are arranged inside the machine box; the hopper, the direct vibration assembly, and the screw separation assembly are fixed on the arrangement machine support sequentially; the hopper plate is arranged inside the hopper, the hopper plate is driven by the hopper air cylinder, and the gas source is connected with the screw separation assembly; the material sucking and locking module comprises an electric screwdriver and a feed tube connected between the electric screwdriver and the screw separation assembly, and a gasket clamping groove is formed in the lower end of the electric screwdriver. According to the handheld automatic screw machine, the screw feeding is not liable to be clamped, and not only the labor cost is saved, but also the production efficiency is improved.

The invention discloses an asynchronous punching process for coated conductive foam, which includes the steps as follows: forming is carried out: conductive hot melt cloth and PU foam are passed through a limiting fixture, a heating mold and a cooling mold of a conductive foam forming machine in turn; the coated conductive foam is pulled out by a conveyor belt; the conductive foam passes through aback glue fixture, a first roller rolls up to remove a piece of release paper thereof, and a second roller drives a first release film to fit the conductive foam; a first asynchronous motor rolls upthe first release film; a second asynchronous motor drives a second release film to fit the conductive foam; a punching machine punches the conductive foam according to the product characteristic demand; and a synchronous motor coils the finished conductive foam after punching. The original step-by-step coating forming replaced by the online integrated forming, and through conveying, punching andasynchronous winding, the difficulty that coated conductive foam cannot be wound in a traceless way and cannot be batch-grasped and pasted for SMT use is solved. The process loss, raw material loss and leftover material loss are greatly reduced, and the efficiency of production and assembly is improved.

The invention discloses an inflator embedded with a pressure gage, and the inflator comprises a base with an assembling hole, an inflating hose connected at the base, a cylinder butt-jointed with the assembling hole, a piston rod which can spurt the cylinder in a reciprocating manner to enable an air outlet hose to output pressurized gas, and a pressure gage installed in the cylinder, wherein an embedding groove is concavely arranged at the periphery of the cylinder along the axial direction; the assembling hole of the base is provided with a shutting nozzle communicated with the air outlet hose in the range of the embedding groove; the pressure gage is provided with an indentation part stretching over the embedding groove so as to be folded at the periphery of the cylinder; the indentation part is protrudingly provided with a hooking block which can extend into the embedding groove for positioning, so that the pressure gage can not be withdrawn from the embedding groove radially; the pressure gage is further provided with a pressure measuring nozzle opposite to the shutting nozzle; a decorative plate which can be inserted into the embedding groove is arranged between the pressure gage and the base; the pressure gage and the decorative plate can completely seal the embedding groove; and the back surface of the decorative plate is provided with a vent hole which can be communicated with the shutting nozzle and the pressure measuring nozzle.

The invention discloses a draft gear of a bogie. The draft gear comprises a traction central pin, a traction central seat, a traction rubber pile, anti-overfilling dogs and a lifting pad, and the draft gear further comprises a lifting pad which is fixedly arranged at the lower part of the lifting pad, wherein the outer diameter of the lifting pad is larger than a space between the anti-overfilling dogs, the maximum width of the traction central seat is smaller than the space between the anti-overfilling dogs, the anti-overfilling dogs are arranged at the middle lower position of a mounting hole wall of the draft gear of the bogie, and the lifting pad and the anti-overfilling dogs are matched to realize a lifting operation. According to the draft gear of the bogie, disclosed by the invention, based on the original structure, on the premise of not changing other component joints of the bogie, the structure of the bogie is optimized so that the draft gear can be assembled without overturning the bogie; and therefore, a bogie overturning assembly step is omitted, the assembly process is simplified, the production efficiency is improved and the production cost is saved.

The invention discloses a walking-replacing vehicle with a foldable steering rod, which includes a pedal, a front wheel, a steering rod and a steering and folding mechanism. The steering and folding mechanism includes a hinge block, an upper folding block, a lower folding block and a folding lock. The hinge block includes a hinge Shaft, upper hinge arm and lower hinge arm, the upper hinge arm and the lower hinge arm are respectively provided with pin holes and steering shaft holes; the upper folding block is provided with the first fixing hole for fixing the direction rod, the direction rod and the upper hinge arm bearing connection, the lower folding block has the same structure as the upper folding block, and the upper folding block and the lower folding block are provided with a fitting structure. The steering and folding mechanism of the mobility vehicle not only realizes the connection between the steering rod, the pedal and the steering main rod, but also realizes the dual functions of steering and folding. It has a simple structure, high production and assembly efficiency, reliable steering force transmission, and will not weaken the structural strength of the steering rod. , high reliability in use, and the overall shape and structure of the steering rod is beautiful, the volume of the car body is greatly reduced after folding, and it is easy to store and carry, which meets the fashion needs of new humans.

The invention discloses an opening and closing mechanism assembly for an inner cover plate of a glove compartment of a vehicle, comprising a mounting base connected on the inner cover plate, wherein cassettes, chock blocks and a gear shaft for mounting a lock gear are arranged on the mounting base, two lock pull rods, namely a left lock pull rod and a right lock pull rod, are oppositely arranged at the upper and lower sides of the mounting base side by side, and the lock pull rods are movably mounted on the mounting base respectively through the cassettes and can move left and right along the mounting base; racks are respectively arranged on the lock pull rods, and the two lock pull rods are in meshing connection with the lock gear mounted on the gear shaft respectively through the racks; a spring is arranged on the mounting base and is respectively connected with the mounting base and the left lock pull rod; and the chock blocks are arranged on the positions opposite to the racks on the lock pull rods and used for limiting meshing clearances between the racks and the lock gear. By reasonably arranging assembly clearances among the parts, part structures are optimized, interference of the parts in the opening and closing mechanism is avoided in an assembly process, and the problem of unsmooth motion of the mechanism is effectively solved.

The invention relates to a device for thread machining and sleeve installation of reinforcing steel bars. The device comprises a reinforcing steel bar input mechanism, a reinforcing steel bar output mechanism, a reinforcing steel bar fixing mechanism, a sleeve installation mechanism and a thread chasing mechanism, wherein the sleeve installation mechanism, the thread chasing mechanism and the reinforcing steel bar fixing mechanism are arranged between the reinforcing steel bar input mechanism and the reinforcing steel bar output mechanism; the sleeve installation mechanism and the thread chasing mechanism can move relative to the reinforcing steel bar fixing mechanism. The device integrates the thread machining and the sleeve installation of the reinforcing steel bars, realizes the automatic processing production of the straight reinforcing steel bars, reduces the processes, greatly reduces the labor cost and improves the construction efficiency.

The invention discloses a medical atomizer. The medical atomizer comprises a drug storage device, a fog collecting tank and an atomization generating assembly; an accommodating cavity is formed between the lower portion of the drug storage device and the fog collecting tank and used for accommodating the atomization generating assembly; the atomization generating assembly comprises a sealing sleeve and an atomizing sheet; the fog collecting tank is shaped like a spindle. The medical atomizer is convenient to produce and assemble and high in drug utilization rate.

The invention discloses a soft package battery module with a non-welding type tab connecting structure; the soft package battery module comprises a battery frame, a plurality of single batteries stacked in the battery frame side by side, and at least two busbars arranged on the battery frame, wherein a connecting component is arranged between one tab of the single battery and the corresponding busbar; the connecting component comprises a first connecting piece, a second connecting piece and a third connecting piece which are connected in sequence; the third connecting piece is fixedly connected with the busbar; the tab is clamped between the first connecting piece and the second connecting piece; the first connecting piece is provided with at least one first clamping portion, and the second connecting piece is provided with at least one second clamping portion; and the tab is in interference fit between the first clamping portion and the second clamping portion through the buckled first connecting piece and second connecting piece. The soft package battery module is reasonable in structure, and the connecting mode of buckling and fixed connection between the connecting components and the tabs is adopted, so that the assembling, detaching and maintaining can be carried out conveniently, the assembling efficiency and the enterprise benefit are improved, and the wiring mode of different series-parallel connection of the lithium battery modules is met.

The invention relates to a valve module assembling integrated machine that is able to solve the existing technical problems of low production efficiency and the like. The valve module assembling integrated machine comprises a working platform and a rotary elastic manipulator arranged on the working platform and capable of circumferentially fixing a valve core; a valve core direction pinpointing device that is capable of driving the valve core to rotate to a set position when the valve core is circumferentially fixed by the rotary elastic manipulator is arranged on the working platform; a valve core riveting mechanism for pressing the synchronously rotated valve core into a valve seat after the rotary elastic manipulator rotates to next station is further arranged on the working platform; a valve tube riveting mechanism capable of pressing one end of a valve tube into the valve seat after the valve core is pressed into the valve seat is further arranged on the working platform; a conveying mechanism is arranged between the valve core riveting mechanism and a valve tube riveting mechanism. Compared with the prior art, the valve module assembling integrated machine has the advantages of high production efficiency and good practicability.

The invention relates to an automatic radar boresighting method based on a gyroscope. The method comprises the following steps of obtaining attitude information of the gyroscope, wherein the attitudeinformation of the gyroscope comprises a roll angle, a pitching angle and a course angle of a radar antenna; obtaining attitude information of aircraft inertial navigation, wherein the attitude information of the aircraft inertial navigation comprises a roll angle, a pitching angle and a course angle of an aircraft; comparing difference values of the attitude information of the gyroscope and the attitude information of the aircraft inertial navigation by taking the attitude information of the aircraft inertial navigation as a reference; and calculating boresighting data of a radar according tothe difference values, wherein the boresighting data comprises an azimuth error and a pitching error of the radar. According to the automatic radar boresighting method, the automatic boresighting function of the radar can be achieved, and the boresighting precision is high, so that the measurement precision of the radar is improved.

The invention relates to an osteotomy positioning device,. The device comprises an extramedullary positioning rod, an osteotomy plate, a first adjusting mechanism, a ankle holding device and a secondadjusting mechanism, wherein the upper end of the extramedullary positioning rod is provided with an osteotomy fixing seat, the osteotomy plate is arranged on the osteotomy fixing seat and used for positioning the osteotomy position of a tibial plateau, the first adjusting mechanism is arranged between the extramedullary positioning rod and the osteotomy fixing seat and used for adjusting the distance between the osteotomy fixing seat and the upper end of the extramedullary positioning rod, the ankle holding device is arranged at the lower part of the extramedullary positioning rod and is usedfor wrapping and fixing an ankle joint, and the second adjusting mechanism is arranged on the extramedullary positioning rod and used for adjusting the length of the extramedullary positioning rod. According to the device, fixing nails do not need to be punched on the tibial plateau for fixing, and the damage to sclerotin of a patient is reduced; the position of the osteotomy plate can be rapidlyand accurately adjusted to adjust osteotomy errors, and the implementation efficiency of surgical operation is improved; and the osteotomy plate can be assisted to be fixed in real time through the fixing effect of the extramedullary positioning rod and the ankle holding device, it is guaranteed that the position of the osteotomy plate is stable enough in the osteotomy operation process, and theaccuracy of osteotomy operation is improved.

The invention discloses a switch circuit breaker structure. The switch circuit breaker structure comprises a shell, a hand control mechanism, a connecting rod, a clamping plate, a moving contact arm, a tripping rod, a pawl, a supporting shaft and a push rod, wherein a first rotary shaft and a second rotary shaft are formed on the pawl in an integral injection molding mode, and are arranged on the two sides of the pawl respectively, and the pawl is connected to the clamping plate through the first rotary shaft and the second rotary shaft in a rotatable mode. When the switch circuit breaker structure is assembled, assembly can be accomplished only by using the first rotary shaft and the second rotary shaft to assemble the pawl on the clamping plate, shafts or shaft sleeves are omitted, and installation accuracy of parts is improved; the number of the parts of the switch circuit breaker structure is reduced, and production efficiency, assembling efficiency and quality are improved.

The invention relates to a clamping and rotating device. The clamping and rotating device comprises a driving rotary disc, a driven rotary disc and a rotary disc driving part, wherein the driving rotary disc is an annular disc; the driven rotary disc is arranged in the driving rotary disc; the driving rotary disc is coaxial with the driven rotary disc; mounting shafts and limiting parts are respectively arranged on the driving rotary disc and the driven rotary disc; the driving rotary disc is connected with the driven rotary disc through a plurality of cranks; the cranks are symmetrically arranged along the center of the driven rotary disc; one end of each crank is articulated with each mounting shaft; a clamping part is arranged on each crank; the clamping parts of the plurality of cranksare used for forming a clamping space; a guide curved groove is formed in each crank; a limiting part is arranged in each guide curved groove; the rotary disc driving part is capable of driving the driving rotary disc to rotate and drive the clamping parts to move to the center or the periphery of the driven rotary disc. The clamping and rotating device is capable of providing certain pre-tightening force to sleeves in the process of mounting the sleeves, so that the mounting strength of the sleeves can be ensured; meanwhile, the sleeves can be directly driven to rotate, so that the sleeves and steel bars can be mounted and butted; the technical problem that the sleeves are clamped and mounted is solved; the producing and assembling efficiency is improved.

The invention provides a liquid reservoir and a compressor, wherein the liquid reservoir comprises a shell and an air outlet pipe; a chamber is defined in the shell; the air outlet pipe is fixedly mounted at the bottom end of the shell, communicates with the chamber and is provided with an insertion pipe section inserted into the chamber; the insertion pipe section can stretch and is provided with a buoyancy device capable of floating in a liquid refrigerant; and the buoyancy device lifts along with the lifting of the liquid level of the liquid refrigerant so that the insertion pipe section stretches along with the lifting of the buoyancy device. Due to the stretching design of the air outlet pipe, the liquid reservation effect of the liquid reservoir can be guaranteed, and meanwhile, the vibration and noise of the air outlet pipe can be reduced.

The invention discloses a bending high-voltage shielding plug, and relates to the electric connector field of the electric appliance field of new-energy vehicles, industrial equipment, urban rails and railway vehicles. The bending high-voltage shielding plug comprises a shell assembly, a contact piece, an installation plate assembly and a tail accessory. The shell assembly is composed of a locking handle, a locking block, a plug shell, a seal ring and a signal pin. Locking and unlocking of a connector are achieved by adopting a mechanism which can convert handle rotation motion into rectilinear motion of the plug shell relative to a socket shell, the electric connector can be normally used on the condition that the operation space is narrow, the problem that a locking mode of a traditional electric connector cannot be normally used in the narrow operation space is solved, and meanwhile the handle has the power-assistant effect so that the operability of the connector is improved.