51results about How to "Avoid connection" patented technology

The utility model relates to liquid containing utensil technical field, concretely relates to a bubble kettle, including the kettle body, the kettle body upper cover is equipped with the kettle cover, is provided with the gas generating device on the kettle cover, and the gas generating device is connected with the kettle body, be provided with the upper cover on the kettle cover, and the upper cover forms the installation space with the kettle cover, be provided with the drinking water pipe subassembly in the kettle body, and the first end of drinking water pipe subassembly is located in the kettle body, and the second end of drinking water pipe subassembly is connected with the pipe orifice cover after passing through the kettle cover and the upper cover in proper order, be provided with the gas generating device that can communicate with the kettle body on the kettle cover, open the gas generating device can produce gas and melt into the liquid that the kettle body is filled with, set up drinking water pipe subassembly in the kettle body, and drinking water pipe subassembly exposes outside after passing through the kettle cover and the upper cover, and the one end of drinking water pipe subassembly exposed outside is provided with the pipe orifice cover, prevents the kettle body from communicating with the outside through drinking water pipe subassembly when not using.

The utility model discloses a reagent bottle safety connecting device, including bottle stopper, anti-sticking connecting piece and connecting rope, the bottle stopper is used for inserting in the inlet end of reagent bottle, the anti-sticking connecting piece wraps the outer surface of the bottle stopper and is detachably connected with the bottle stopper, the connecting rope passes through the top of the bottle stopper, the anti-sticking connecting piece is detachably connected with the bottle stopper, and the connecting rope is detachably connected with the anti-sticking connecting piece. The anti-sticking connecting piece is movably arranged on the connecting rope, and the connecting rope can be connected with bottle plugs of other reagent bottles. The utility model further discloses a reagent bottle assembly which comprises the reagent bottle and the reagent bottle safety connecting device. According to the utility model, the bottle plug has an anti-loss function, and the bottle plug can be effectively prevented from being adhered to the inlet end of the reagent bottle.

The utility model discloses a bridge engineering steel box girder assembly quick support, which relates to the technical field of bridge engineering and comprises a bottom plate, a support column is fixedly connected to the middle of the top of the bottom plate, a rotating shaft is fixedly connected to the top of the support column, and a first connecting mechanism is arranged on the outer side of the rotating shaft. The top of the supporting column is connected with a supporting plate through a first connecting mechanism, and second connecting mechanisms are evenly arranged on the outer side wall of the supporting column. According to the bridge engineering steel box girder splicing fast support, a pressing rod is pressed, so that a connecting plate drives clamping blocks to move, the clamping blocks get close to each other, the clamping blocks are arranged in a moving groove, the pressing rod is loosened, the connecting plate drives the clamping blocks to reset, the clamping blocks are clamped into clamping grooves, and therefore a supporting plate and a supporting column are conveniently connected; and a large number of bolts are prevented from being connected through tools, time is saved, the labor amount is reduced, assembling is faster, and the convenience of the device is improved.

The application discloses an intelligent power supply control system, and relates to the field of intelligent power supply management equipment.The system comprises an LCD display module and a power supply management MCU chip, wherein the power supply management MCU chip is internally integrated with a nonvolatile memory, a CPU module, a PMU module, an LCD controller and a bandwidth arbitrator; the bandwidth arbitrator is connected with the nonvolatile memory, the CPU module and the LCD controller; the CPU module is connected with the PMU module and the LCD controller; the output end of the LCD controller is in communication connection with the LCD display module; the nonvolatile memory internally stores color screen display memory data and instruction codes to be executed by the CPU module; and the bandwidth arbitrator configures the priority and bandwidth of the nonvolatile memory in responding to an access request when an access conflict occurs.The application simplifies the hardware circuit.

This utility model provides a wiring system for the low-voltage side of a single-phase autotransformer and a prefabricated box-type switchgear in a confined space, comprising: a low-voltage bushing of the single-phase autotransformer, an aluminum tube busbar branch bus, an aluminum tube busbar main bus, a copper tube bus, and a prefabricated box-type switchgear. The low-voltage bushing of the single-phase autotransformer is connected to the aluminum tube busbar branch bus via a flexible copper busbar; the aluminum tube busbar branch bus is connected to the phase-separated aluminum tube busbar main bus via a flexible copper busbar; the aluminum tube busbar main bus is connected to the copper tube bus; and the end of the copper tube bus is connected to the prefabricated box-type switchgear. The wiring system provided by this utility model occupies little space and has a simple and compact layout; the delta connection on the low-voltage side of the transformer uses an aluminum tube bus to reduce costs, and the connection to the box-type switchgear bus avoids terrain limitations by using a flexible copper tube bus; the prefabricated box-type switchgear occupies little space, is easy to assemble and saves construction time, and the internal switch cabinet spacing is easy to expand.

An emergency wire cutter to prevent inter-core short circuits includes pliers with two jaws, each with a cutting section. Each cutting section includes a mounting block fixedly connected to the jaws, a slot on the mounting block, and multiple cutting blades stacked within the slot. The cutting blades have a triangular shape at one end outside the slot and an insulating portion outside the cutting blades. An end cap is located at one end of the slot, connected to the mounting block by screws, and the end cap presses the multiple cutting blades firmly within the slot. This invention addresses the problem of short circuits caused by existing wire cutters when cutting live multi-core cables.

The application provides a point cloud encoding method and device based on a prediction tree, equipment and a storage medium. The method comprises the following steps: obtaining a target point cloud, the target point cloud comprising N points; constructing a main prediction tree based on part of the main nodes in the N points; inserting the adjacent points of the main nodes in the remaining points into the main nodes to obtain a target prediction tree of the target point cloud for each main node in the main prediction tree; and encoding the target point cloud based on the target prediction tree. That is, the application takes the main nodes as the center, optimizes the connection relationship between the local points, and prevents the connection of points far away from each other. The target prediction tree obtained in this way realizes the optimal ordering of the local points, improves the construction accuracy of the target prediction tree. When prediction is performed based on the accurately constructed target prediction tree, the prediction accuracy of the target point cloud can be improved, and the encoding efficiency of the target point cloud is further improved.

The present application relates to the technical fields of nitrogen recovery condensation of liquid nitrogen tank, in particular to a liquid level pressure linkage safety gas return and recondensation device of liquid nitrogen tank, which comprises a liquid nitrogen tank body, a pressure detection control valve body, a gas pressurization processing unit and a condensation backflow processing unit, the gas pressurization processing unit is installed on one side of the liquid nitrogen tank body, the upper end of the gas pressurization processing unit is connected with the pressure detection control valve body, the pressure detection control valve body fills the gas into the gas pressurization processing unit after detecting that the internal pressure of the liquid nitrogen tank body reaches a certain threshold value, and the condensation backflow processing unit is installed on the upper end of the liquid nitrogen tank body.The present application can fill the nitrogen gas in the liquid nitrogen tank body into the condensation backflow processing unit after pressurization processing by the gas pressurization processing unit, the condensation backflow processing unit condenses the pressurized nitrogen gas into liquid nitrogen, and the condensation backflow processing unit fills the condensed liquid nitrogen into the liquid nitrogen tank body again, so as to recycle the nitrogen gas and reduce the waste of the nitrogen gas.

This utility model discloses a negative pressure bag filter dust collector for a ferrosilicon submerged arc furnace, relating to the technical field of bag filter dust collectors. It includes a shell, with a cover plate fixedly connected to the top of the shell by screws. Multiple vertical rods are provided at the bottom of the cover plate, with a ball at the bottom of each vertical rod. A collar is fitted onto the top of each vertical rod, and a horizontal tube penetrates the side wall of the collar. A dust collector screen plate is provided on the top of the inner side of the shell, and bag cages are fixedly connected to the screen plate through openings. This utility model, through a series of structural features, reduces the probability of dust accumulating inside the dust collector for extended periods, absorbing moisture, and agglomerating. This facilitates subsequent cleaning processes inside the dust collector and avoids directly connecting the bag cages to the micro-vibration equipment, thereby reducing the probability of loosening between the bag cages and the screen plate due to vibration and ensuring a stable connection between them.

The application discloses a process chamber and a semiconductor processing equipment. The process chamber comprises a chamber body, a coupling cylinder, a chamber top, a temperature control assembly and a sealing ring. The coupling cylinder is fixedly connected with the sidewall of the chamber body. The chamber top is fixedly connected with the coupling cylinder. The chamber body, the coupling cylinder and the chamber top enclose a process cavity. The temperature control assembly comprises a temperature control body and a limiting ring. At least a part of the temperature control body is arranged in layers on the side of the chamber top away from the coupling cylinder. The temperature control body is fixedly connected with the chamber body. The limiting ring is fixed on the side of the temperature control body facing the chamber top. The limiting ring is arranged around the outside of the chamber top. The sealing ring is clamped between the inner sidewall of the limiting ring and the outer sidewall of the chamber top. In the process chamber, there is no risk of sealing failure between the temperature control assembly and the chamber top, so that the moisture and impurities in the outside can be prevented from entering the process chamber to contaminate the wafer.

The utility model provides a kind of vehicle body support device and straddle type monorail vehicle production line, it is related to rail transit technical field.In device, multiple support frames are arranged at intervals in bearing frame;Support frame includes fixed frame and lifting frame, fixed frame is connected with bearing frame, lifting frame is adjustably connected in fixed frame in up-down direction position, the top of lifting frame is equipped with support platform and stop plate, support platform is connected with stop plate on one side or multiple sides in circumferential direction, support platform is used to support the bottom end of the columnar structure of vehicle body bottom, stop plate is used to limit side of columnar structure.Vehicle body support device can be used for multiple support stations of vehicle body and satisfy the support height demand of multiple support stations to vehicle body, and, it can provide operating space under a part of vehicle body using columnar structure, can reduce the upper limit position and lifting stroke demand of lifting frame, facilitate miniaturization and light weight of vehicle body support device, the design of support platform and stop plate ensures the reliability of vehicle body support.

The application provides a submarine cable back-tow joint structure, comprising: a joint pipe, the joint pipe comprising a hollow pipe body and a first end cover, the first end cover being arranged at one end of the pipe body, the first end cover being provided with a pulling rod, and an inner side wall of the pipe body being provided with a first conical platform; a fixing pipe, the fixing pipe being located in the pipe body, an outer side wall of the fixing pipe being provided with a second conical platform, the second conical platform and the first conical platform clamping a sheath layer; and a connecting piece, the connecting piece being arranged in the joint pipe and located between the first end cover and the fixing pipe, the connecting piece being in abutting fit with the fixing pipe, wherein the connecting piece is provided with a containing hole, and the containing hole is filled with adhesive, which not only avoids the adhesion between the sheath layer of the submarine cable and the joint structure, so that the disassembly operation between the submarine cable and the back-tow joint structure is simple, but also enables the sheath layer and the cable core of the submarine cable to jointly bear the pulling load, significantly reduces the risk of interlayer slip of the submarine cable during back-tow, and simultaneously improves the reliability of the fixation between the back-tow joint structure and the submarine cable.

The application discloses a hanging well and a construction method thereof. The hanging well comprises an outer wall, a top ring beam and a plurality of inner wall segments. Each inner wall segment comprises an assembled layer and a post-poured layer. The assembled layer is formed by a plurality of prefabricated blocks. Each prefabricated block comprises a main reinforcement and a stirrup. Each inner side main reinforcement is connected with a second connecting reinforcement. A top surface of each prefabricated block is provided with a supplementary concrete groove. The second connecting reinforcement of each prefabricated block is inserted into a supplementary concrete hole of a previous layer and is anchored to a steel reinforcement in the hole through post-poured concrete. Free ends of the connecting reinforcements of each prefabricated block are in abutment with outer half circles of the stirrups of adjacent prefabricated blocks. The outer side main reinforcements, the connecting reinforcements and the outer half circles of the stirrups are anchored in post-poured concrete. The construction method comprises the following steps: layer-by-layer excavation, block-by-block assembly and layer-by-layer grouting and filling, so as to form vertical and horizontal overall strength, integrate the assembled layer into a whole and connect the assembled layer with the outer wall. The hanging well and the construction method thereof can shorten construction period, simplify construction procedures and save labor cost.

The utility model relates to calcium carbonate stock bin technical field discloses a stock bin for calcium carbonate production, including stock bin, the one side of stock bin is provided with the feeding and discharging subassembly, and the outer wall of stock bin is provided with sealing element, the feeding and discharging subassembly includes motor no.

This utility model relates to an oven, comprising: an oven body including a heating source and an oven cavity, the heating source being used to heat the oven cavity; a first communication port on the oven body communicating with the oven cavity, the first communication port being provided with a valve for opening or closing the first communication port, and the valve being a normally closed valve; and a tableware sterilization container, the tableware sterilization container having a second communication port communicating with its inner cavity, the tableware sterilization container being provided with an opening valve structure for opening the valve when the tableware sterilization container is placed in a preset position on the oven body, so that the oven cavity and the inner cavity of the tableware sterilization container are interconnected through the first communication port and the second communication port. The oven provided by this utility model can improve the convenience and efficiency of tableware sterilization.

The construction fence comprises two pairs of supporting frames, fence plates, connection reinforcing parts and telescopic inclined strut mechanisms, moving wheels are arranged at the bottoms of the supporting frames, the supporting frames comprise bottom transverse rods, telescopic supporting stand columns, U-shaped steel plates and rotating parts, the two ends of the fence plates are inserted into the U-shaped steel plates and are connected through connecting bolts, and the telescopic supporting stand columns are connected with the U-shaped steel plates through connecting bolts. The connecting and reinforcing part comprises a plurality of reinforcing rods arranged in the height direction of the U-shaped steel plate, the reinforcing rods are attached to the fence plate, and L-shaped connecting plates connected with the U-shaped steel plate are arranged at the two ends of the reinforcing rods; one end of the telescopic inclined strut mechanism is hinged to the bottom cross rod, and the other end of the telescopic inclined strut mechanism is hinged to the telescopic supporting stand column. The fence is simple in structure, the rotating pieces are arranged between the telescopic supporting stand columns and the U-shaped steel plates, angle adjustment between every two adjacent fences after the fences are installed can be achieved, adaptability is improved, moving wheels are arranged, moving and turnover of the fences are accelerated, and practicability is high.

The utility model discloses electromagnetic power supply master switch, including fixed base, be provided with a plurality of mounting hole on the fixed base, be connected with the electromagnetic switch body through the fixed mechanism on the fixed base, be provided with two binding posts on the electromagnetic switch body, the middle part of two binding posts is provided with interval seat, and the protective cover is connected with two first screws on the interval seat, and the side end fixed connection of electromagnetic switch body has the fixed ring, and the position that fixed ring is connected with the protective cover is provided with two threading port, and the first sealing washer is arranged between fixed ring and the protective cover, and the position that the first sealing washer corresponds with two threading port all is provided with the sealing ring on, and the top fixed connection of interval seat has the second sealing washer, and the protection of two binding posts is convenient for protection, avoids the object of conducting electricity and falls on two binding posts and leads two binding posts connection line intercommunication, avoids leading to the automatic start of corresponding equipment, avoids the emergence certain security risk.

The utility model relates to the technical field of oxygen generation equipment, and discloses a skid-mounted oxygen generator which comprises a bottom plate, a filter box is fixedly connected to the top of the bottom plate, a cleaning mechanism is fixedly connected to one side of the filter box, and a clamping mechanism is fixedly connected to the other side of the filter box. According to the cleaning mechanism, the toothed plates are arranged at the top and the bottom of the sector gear and connected with the movable frame and the brush, when the sector gear rotates by one circle, the toothed plates at the top and the bottom can be driven to reciprocate at the same time, the surfaces of the two filter plates in the filter box are synchronously cleaned, and compared with a traditional single-direction cleaning mode, the cleaning efficiency is greatly improved. According to the structure, the cleaning efficiency is greatly improved, the problem of local dust accumulation of the filter plate caused by cleaning dead angles is avoided, the cleanliness of all parts of the filter plate is ensured to be consistent, efficient operation of an air filtering system is effectively maintained, and after the sector gear is separated from the toothed plate, the toothed plate is reset under the action of the first spring, and preparation is made for next cleaning circulation.

The utility model discloses a pipeline fixing clamp for building construction in the field of building construction, which comprises a mounting plate serving as a main body of equipment to provide mounting positions for other parts, connecting holes and connecting mechanisms are arranged at four corners of the top of the mounting plate in a penetrating manner, and the connecting mechanisms are used for quickly connecting an upper pipe clamp and a lower pipe clamp. And the connecting mechanism comprises a mounting block, the mounting block is fixedly connected to the middles of the left side and the right side of the upper pipe clamp, and an inserting groove is formed in the top of the mounting block in a penetrating mode. And the clamping block is reset through the connecting spring, the extrusion block is blocked, and the upper pipe clamp and the lower pipe fitting are fixedly connected, so that connection through bolts is avoided, connection is simpler and more convenient, the installation speed is increased, time is saved, and the efficiency is improved.

The utility model discloses a polyester composite fabric, and relates to the technical field of fabrics. According to the key points of the technical scheme, the mask comprises a base layer, a plurality of through grooves are formed in the base layer in an array mode, a plurality of shielding pieces are sewn on the base layer, penetrating grooves staggered with the through grooves are formed in the shielding pieces, supporting lines located between the through grooves and the penetrating grooves are sewn on the shielding pieces, and the supporting lines abut against the base layer. Through the arrangement of the shielding piece and the through grooves and the through grooves which are formed in the staggered mode, the breathable effect of the fabric is improved while the sunscreen performance of the fabric is guaranteed, and the breathable effect of the fabric is improved; the polyester special-shaped yarns ensure the light resistance and improve the ventilation effect of the fabric at the same time.

The utility model relates to burner technical field, concretely relates to a burner with backfire avoidance structure, including burner main part, the one side fixed connection of burner main part has the cannon barrel, the inside of burner main part is provided with the steady flame disc, and the steady flame disc is fixedly installed with the igniter needle and the spray gun, and the end of igniter needle far away from the steady flame disc and the end of spray gun far away from the steady flame disc can slide and extend out of burner main part. Through the first displacement mechanism cooperation power piece drive steady flame disc, igniter needle and spray gun far away from cannon barrel, quickly evacuate combustion chamber and peripheral high temperature area, avoid backfire flame direct contact igniter needle and oil nozzle, prevent igniter needle electrode oxidation failure, oil nozzle fuel passage coking block, solved the burner combustion chamber and the flow through cavity intercommunication, the cavity residual gas is easy because high temperature backfire when stop using, if fuel spray gun, igniter needle and steady flame disc have not evacuated, can cause igniter needle failure, oil nozzle block technical problem.

The utility model discloses a thermal insulation glue storage barrel, which relates to the technical field of storage containers and comprises an outer barrel, a cover body, a connecting component, a heating wire and an inner barrel, a first edge fin is arranged at the top of the outer side wall of the outer barrel, a second edge fin is arranged at the outer edge of the cover body, a first clamping groove is formed in the outer edge of the first edge fin, and a second clamping groove is formed in the outer edge of the second edge fin; the connecting assembly comprises a supporting protrusion, a stud and a crimping part. The supporting bulge is fixedly connected with the outer cylinder; the bottom end of the stud is hinged to the supporting protrusion, the middle of the stud can be clamped into the first clamping groove and the second clamping groove and is in a vertical state, and the upper portion of the stud is in threaded connection with the crimping part. And the crimping part can rotate and push the cover body to crimp the outer barrel. The outer end of the supporting protrusion bears upward pulling force, so that when the supporting protrusion bends and deforms, the upward moving amount of the outer end of the supporting protrusion can be matched only by further rotating the pressing connection piece, pressing and sealing of the cover body and the outer barrel are guaranteed, and the reliability of air pressure feeding is improved.

The utility model relates to automatic vending equipment technical field discloses a kind of vending machines, including cabinet, goods channel and circuit control module.Cabinet, its inside is equipped with commodity storage cavity;Goods channel: setting in the commodity storage cavity, including power supply contact module and position identification contact module, the power supply contact module is used to obtain power supply electric energy, the position identification contact module is used to collect the real-time position coordinate data of the goods channel;Circuit control module: setting in the commodity storage cavity, including position identification contact signal module and power supply contact signal module, the position identification contact signal module and the position identification contact module carry out contact type electrical connection, the power supply contact signal module and the power supply contact module carry out contact type electrical connection.

The utility model provides a kind of multi-way valve, comprising: valve body, valve body includes body and end cap, body and end cap cooperation forms valve cavity, end cap is provided with multiple flow-through port;Valve core, valve core is arranged in valve cavity, valve core has rotating shaft, and the end of valve core has communicating port, valve core can rotate around rotating shaft;Sealing assembly, sealing assembly is sleeved in the one end of valve core with communicating port, sealing assembly has ring part and support part, ring part and support part are all sealed with end cap cooperation, ring part is annular and is used to seal the gap between communicating port and flow-through port, support part includes two support sections, support section at least partially and the periphery of flow-through port abut;The one end of sealing assembly close to rotating shaft has limit section, and / or, the one end of sealing assembly away from rotating shaft has limit section, to limit the rotation of sealing assembly around communicating port. The technical scheme of the application can solve the problem of the multi-way valve in the prior art that is prone to overturning during switching.

The utility model discloses a kind of decompression rotary shavers, it is related to shaving equipment technical field.Rotary shaver includes rotary body and at least one support located in the outside of rotary body;Rotary body includes casing, and the opening of one end of casing in first direction is equipped with cutter head assembly;Support includes rotating bearing and support body, rotating bearing connects support body on the outside of casing, so that rotary body can rotate relative to support body.Support body is connected with the outside of casing by rotating bearing, the integrity of casing is facilitated to guarantee, it is favorable to promote the structural strength of casing, can improve sealing, waterproof and dustproof performance;It can also reduce the occupation to the internal space of casing, improve the flexibility of component arrangement in the internal space of casing.When not shaving, rotary body can rotate relative to support body, with entertainment and decompression function.

The utility model discloses a rotary stirring type glue mixing device, and belongs to the field of stirring tools. The glue mixing device comprises a rotating machine body, a rotating rod, a rope and a stirring ball, the rotating rod is coaxially and detachably connected with a chuck of the rotating machine body, the rope is bound to the end, away from the rotating machine body, of the rotating rod, and the stirring ball is fixed to the tail end, away from the rotating rod, of the rope. The rotating machine body is used for driving the rotating rod to rotate, the rotating rod vertically extends into the glue injection hole, the rope is flexibly connected with the rotating rod and the stirring ball, and the stirring ball is used for mixing glue along with rotation of the rotating rod. And the rotating machine body drives the rotating rod to rotate, so that the stirring ball can be driven to rotate around the rotating rod under the centrifugal effect, and the adhesive in the adhesive injection hole is stirred and mixed. According to the structure, an adhesive can be directly stirred in the glue injection hole, glue mixing outside the glue injection hole is avoided, and the working efficiency is improved.

The utility model discloses a kind of installation structure of distribution valve and waterway board and water purifier with it, belong to water purification equipment technical field.The distribution valve has with waterway board several first distribution valve interfaces, the first distribution valve interface is female head type interface, the waterway board is internally provided with several flow channels, the surface of the waterway board is equipped with several waterway board interfaces with its internal flow channel communication, the distribution valve is docked with waterway board interface by first distribution valve interface, is inserted in waterway board.Distribution valve preferably connects with waterway board by connecting piece.The utility model directly inserts distribution valve in waterway board, avoids complex pipeline connection, and high degree of integration is conducive to saving space.Connecting piece is convenient to manufacture and can be produced quantitatively according to needs, can avoid the replacement of whole waterway board due to insertion wear, so that use and maintenance cost can be reduced.

The utility model relates to the technical field of steel pipe piles, and discloses a recyclable temporary steel bridge steel pipe pile parallel connection device which comprises a steel pipe foundation pile, the outer wall of the steel pipe foundation pile is sleeved with a limiting structure, and the outer wall of the steel pipe foundation pile is sleeved with a parallel connection device. By arranging the parallel connection device structure, the parallel connection end hoop structures, the parallel connection structures and the anchoring structures on the device are connected to the outer wall of the steel pipe foundation pile in a sleeving mode in the same threaded connection mode as the limiting structures, and the parallel connection end hoop structures on the two sides are connected in a crossed mode through the parallel connection structures; the limiting anchoring bearings on the device penetrate through the inner walls of the limiting anchoring holes, so that the limiting structures on the device are connected in a hooping mode on the upper sides and the lower sides of the parallel connection devices, and then the vertical limiting function of the limiting structures on the steel pipe foundation piles is achieved; and the overall stability of the parallel connection device is improved.

The utility model discloses an equipment compartment plate connector mounting structure and a vehicle, and relates to the technical field of vehicle engineering. The equipment compartment plate connector installation structure comprises an equipment compartment plate, wherein an installation hole used for installing a single connector is formed in the equipment compartment plate in a penetrating mode in the first direction; and the connectors are inserted into the corresponding mounting holes in the first direction, and the connectors are in sealed connection with the mounting holes. At the moment, mounting holes matched with the connectors are directly formed in the equipment compartment plate, the connectors can be directly inserted into the equipment compartment plate, the connection mode between the equipment compartment plate and the connectors can be simplified, the opening positions of the mounting holes can be flexibly selected according to the actual positions and the number of the connectors, and the requirement for a middle connection structure is reduced. Meanwhile, the connector is in sealing fit with the mounting hole, so that the situation that the equipment cabin is communicated with the external operating environment at the mounting hole due to the arrangement of the mounting hole can be avoided, cables in the cabin are isolated from the severe operating environment outside the cabin, and the maintenance and protection cost is reduced.

This utility model belongs to the field of circulation valve technology, specifically relating to an exhaust gas circulation valve, comprising: a valve body, a base plate at the bottom of the valve body, a side pipe on the top periphery of the valve body, and a docking plate at the end of the side pipe; a snap-fit ​​structure, comprising multiple snap-fit ​​structures, all disposed on the base plate, for connecting the base plate to the vehicle body; and a latching structure, disposed on the side pipe near the docking plate, for connecting the end of the side pipe to the end of the external pipe, thereby solving the problem that existing exhaust gas circulation valves mostly use bolts to connect to the external pipe and the vehicle body, which results in slow connection speed and low efficiency.