40results about How to "Improve connection security" patented technology

The invention relates to the technical field of foundation pit supporting, and discloses a large deep foundation pit inner supporting system with a safety system.The large deep foundation pit inner supporting system comprises a telescopic rod, a supporting rod, a connecting plate and a soil retaining plate, one end of the telescopic rod is rotationally connected with a connecting block through a pin, the connecting block is movably provided with an elastic assembly, and the elastic assembly is connected with one side of the supporting rod; the elastic assembly reserves an elastic telescopic space between the supporting rod and the telescopic rod and is used for detecting displacement generated when the supporting rod and the soil retaining plate support the foundation pit, clamping grooves are formed in the two opposite sides of the soil retaining plate, and an assembling structure is arranged on one side of the supporting rod. According to the large-scale deep foundation pit inner supporting system with the safety system, prestress can be effectively applied to the side wall of the foundation pit, so that the periphery of the pit wall has certain supporting force, the deformation condition of the side wall of the foundation pit can be monitored, meanwhile, underground water seepage of a soil layer of the foundation pit can be eliminated in time, and the safety coefficient during foundation pit supporting is improved.

The invention belongs to the technical field of welding, and discloses a dissimilar metal power modulation galvanometer laser welding method which comprises the following steps: finely cleaning a 6061 aluminum alloy and a 304 stainless steel plate by using acetone, and then airing for more than 20 minutes; the aluminum steel sheet is assembled, pressed and fixed on a welding test platform in a steel-up-aluminum-down mode; the position of the welding test platform is adjusted, argon serves as welding protection gas, and a protection gas nozzle is arranged to be aligned with a welding pool area; laser welding parameters are set, a laser power modulation mode is set to be a gradient power mode, and the gradient power mode is to regulate and control phase point laser power in a circular scanning track in the advancing direction of a welding seam; a welding test is carried out in the mode that a galvanometer laser head is fixed and a welding test platform is moved, and a laser and the welding test platform are synchronously started and stopped; and the protective gas is started 5 seconds before the laser is started, and after the laser is stopped, the protective gas is stopped lagging for 10 seconds so as to continuously protect the welding seam and prevent oxidation.

The utility model provides a high-capacity mobile energy storage power distribution vehicle which comprises a second-class chassis, a mute type compartment is arranged on the second-class chassis, and the mute type compartment is sequentially provided with a fire-fighting cabin, a battery cabin, an equipment cabin and a cable cabin. A battery cabinet is arranged in the battery compartment, a battery pack is placed on the battery cabinet, an electric control cabinet, a charging pile and a charging gun are arranged in the equipment compartment, and the charging pile is electrically connected with the battery pack and used for charging an electric vehicle; a power input cabin is arranged on the right skirt edge of the second-class chassis and provided with a mains supply connector. The energy storage power distribution vehicle has the characteristics of millisecond-level access, zero flicker of power supply, silence, environmental protection, flexibility, large energy storage capacity and the like, when accidents such as power failure occur, the energy storage power distribution vehicle can respond in millisecond and timely supply power to the outside in emergency, the charging pile is arranged, the liquid cooling over-charging and quick charging functions can be realized by the charging pile, and emergency guarantee is provided for the electric vehicle.

A new energy storage battery adapter disclosed by the present invention comprises an adapter main body, a first-stage external plug is arranged on the outer wall of one side of the adapter main body, a transmission wire is fixedly connected to the outer wall of one side of the first-stage external plug, and the outer wall of the periphery of the first-stage external plug is movably connected to the inner wall of a communication opening. The input end of the first-stage external plug penetrates through the communication opening and the placement cavity to be movably connected with the output end of the second-stage butt joint socket in a clamped mode, and a conductive anti-disengaging mechanism is arranged on the inner wall of the placement cavity. And then the first-stage external plug is held by a hand and is aligned with the output end of the second-stage butt joint socket to be inserted, and the second-stage butt joint socket is connected with the second-stage butt joint plug to be finally electrified, so that second-stage power connection is formed in this way, and better safety guarantee is achieved.

The invention provides a lining which comprises a lining body and at least one grounding structure arranged on the lining body, the grounding structure comprises a grounding main body, a connecting part and a grounding part, the grounding main body is strip-shaped, the grounding main body and the lower end of the lining body are arranged at an interval, the connecting part is arranged at at least one end of the grounding main body in the extension direction, and the grounding part is arranged at the lower end of the lining body. The connecting part is connected with the lower end of the lining body and is electrically conducted; the grounding part and the connecting part are arranged at an interval along the extension direction of the grounding main body; the grounding part is used for being fixedly connected with a grounding piece in use and is electrically conducted. The invention also provides a semiconductor processing chamber.

The invention provides a cover plate assembly and a battery, and relates to the technical field of batteries. The cover plate assembly comprises a substrate, a pole, a supporting piece and an injection molding connecting piece. Wherein the pole penetrates through the cover plate, one end of the pole can be connected with a roll core of the battery, and the other end of the pole can be connected with external electric equipment. The supporting piece is connected with the substrate, and the supporting piece and the substrate are relatively fixed in the axial direction of the pole, so that the supporting piece is reliably connected with the substrate. The injection molding connecting piece is arranged between the supporting ring and the pole and connects the supporting ring with the pole, so that the pole and the supporting ring are relatively fixed, when the pole is subjected to axial acting force, the supporting ring can support the pole in the axial direction of the pole, the pole is prevented from moving in the axial direction of the pole relative to the cover plate, and the reliability of the pole is improved. And the stability and the reliability of the pole are ensured. The injection molding connecting piece is an insulating piece, is arranged between the pole and the supporting piece and can separate the pole from the supporting piece, so that short circuit caused by direct contact of the pole, the supporting piece and the substrate is avoided.

The invention provides a cover plate assembly and a battery, and relates to the technical field of batteries. The cover plate assembly comprises a substrate, a pole, a first buffer piece and a second buffer piece. The pole penetrates through the cover plate, one end of the pole can be connected with an electrode assembly of the battery, and the other end of the pole can be connected with external electric equipment. The first buffer part is located between the first limiting face and the first plate face, when the pole is subjected to acting force facing the first plate face, the first limiting face of the pole can act on the first buffer part, the first buffer part can absorb the acting force of the pole facing the first plate face, and the first limiting face of the pole is prevented from making contact with the first plate face of the substrate to be damaged. And the second buffer piece is located between the second limiting surface and the second plate surface, when the pole is subjected to an acting force facing the second plate surface, the second limiting surface of the pole can act on the second buffer piece, and the second buffer piece can absorb the acting force of the pole facing the second plate surface, so that the second limiting surface of the pole is prevented from being damaged due to contact with the second plate surface of the substrate.

The utility model relates to the technical field of folders, and discloses a secondary locking vertical pipe iron folder which comprises a folder lower seat, a folder upper seat and a folding seat locking structure, one end of the folder lower seat is hinged to one end of the folder upper seat through a folder connecting shaft, and the other end of the folder upper seat is hinged to the folding seat locking structure. The folding seat locking structure is arranged at the other end of the folder lower seat and the other end of the folder upper seat, the folder lower seat and the folder upper seat are locked through the folding seat locking structure, the folder upper seat is connected with a secondary safety fastener, and one side of the secondary safety fastener is connected with a secondary safety buckle spring. According to the secondary locking vertical pipe iron folder, the situation that an iron vertical pipe folder at the market end is not attractive can be optimized, a safety buckle double-buckle mode is adopted, the folding safety performance is improved, a secondary safety buckle self-locking device is additionally arranged, folding of the folder is changed into self-locking, and when a primary safety buckle fails, the secondary safety buckle is still effective, and personal safety is guaranteed.

The invention discloses a nonmetal composite hydrogen conveying hose with a multi-form hydrogen blocking layer, and belongs to the technical field of hydrogen conveying hoses, the nonmetal composite hydrogen conveying hose comprises an external pipe, the bottom end of the external pipe is connected with a butt-joint pipe, the bottom end of the butt-joint pipe is connected with a composite hose, the bottom end of the butt-joint pipe is connected with a first sleeve in a penetrating mode, and the top end of the butt-joint pipe is connected with a second sleeve in a penetrating mode; the first sleeve is sleeved on the outer wall of the composite hose, the second sleeve is sleeved on the outer wall of the external pipe, a cavity is arranged in the butt-joint pipe, and a sealing measuring assembly is slidably connected in the cavity of the butt-joint pipe. A complete hydrogen conveying structure is integrally formed by a composite hose, a butt joint pipe and an external pipe, the butt joint pipe is fixedly connected with the composite hose and the external pipe in a sleeving mode through a first sleeve and a second sleeve, an inner cavity provides an installation and sliding space for a test sealing assembly, and the composite hose is of a multi-layer composite structure of a hydrogen conveying pipe, a first hydrogen blocking layer and a second hydrogen blocking layer. And a multi-form hydrogen blocking system with double hydrogen blocking layers and a hydrogen transporting base layer is formed.

The utility model discloses a tensioning connecting device and a support mechanism thereof, and belongs to the technical field of fastening devices.The tensioning connecting device comprises a columnar piece, a wedge-shaped piece and a sleeve, one end of the columnar piece is in threaded connection with one end of the sleeve, the wedge-shaped piece is arranged in the columnar piece, the wedge-shaped piece is of a conical structure, and the sleeve is sleeved with the wedge-shaped piece. The interior of the sleeve abuts against one end of the conical structure and is in threaded connection with one end of the columnar piece, and the other end of the conical structure abuts against the interior of the columnar piece. The utility model further discloses a support mechanism adopting the tensioning connecting device. The tensioning connection device and the support mechanism thereof are simple in structure, convenient to operate, capable of effectively improving connection efficiency and safety and suitable for being used in various steel wire rope related fields.

The utility model relates to the technical field of metal plate installation, in particular to a plate splicing and welding combined seat. According to the technical scheme, the fixing device comprises a main body supporting and stabilizing seat made of metal materials, combined fastening and connecting plates are evenly distributed at the upper end of the main body supporting and stabilizing seat, and overall fastening and combining holes are formed in the combined fastening and connecting plates. The supporting structure is characterized in that an assembly matching placement groove with a rightward opening is formed in the center of the lower end of the main body supporting and stabilizing seat in the front-back direction, a combined limiting and fastening groove is formed in the right side of the assembly matching placement groove in the front-back direction, and a limiting clamping anti-loosening boss is arranged on each combined limiting and fastening groove. The connecting structure has the advantages that inner and outer side materials can be guaranteed to be staggered and firmly fused when the connecting position is welded, so that the overall structure matching strength of the connecting position is higher, the connecting safety is better during later use, and the durability is higher.

The utility model discloses an automobile control arm assembly, which belongs to the technical field of automobile accessories and is characterized in that the surface of a control arm assembly body is provided with a lightening hole, a ball head component, a bushing component and a rubber sleeve, the outer side of the rubber sleeve is provided with a reinforcing sleeve, and the inner wall of the rubber sleeve is in contact connection with a connecting rod; the automobile control arm assembly comprises a rubber sleeve, a connecting rod is arranged on the rubber sleeve, a first fastening sleeve and a second fastening sleeve are connected to the surface of the connecting rod through threads, and connecting parts are arranged on the surfaces of the first fastening sleeve and the second fastening sleeve. The use stability of the rubber sleeve is effectively improved, and the fastening sleeves can be prevented from rotating or loosening due to vibration through the anti-falling blocks arranged on the two fastening sleeves and the anti-falling grooves formed in the two anti-falling sleeves, so that the connecting rod is separated from the control assembly body, and the connecting safety of the connecting rod is greatly improved.

The application relates to the technical field of sealing joints, in particular to a sealing joint for a high-pressure hydrogen gas conveying pipeline, which comprises a male connector seat, a female connector seat and a valve core group, the joint ends of the male connector seat and the female connector seat are respectively provided with lock plates and flange joint plates, the outer periphery of the flange joint plate is provided with wedge locking blocks and screw rods, the opposite surfaces of the lock plate and the flange joint plate are respectively provided with first sealing ring groups and second sealing ring groups, the surface of the lock plate is provided with a sealing gasket, the valve core group comprises a core shaft, a spring, a valve sleeve and a guide head, and a gradually tapered section, a throat section and a gradually expanded section flow channel structure are formed between the valve sleeve and a flow channel. The male connector seat and the female connector seat are quickly locked and connected through the wedge locking blocks, a composite sealing structure is formed through labyrinth sealing and elastic sealing, the static pressure of a joint jointing area is reduced through the Venturi effect, the hydrogen gas leakage driving force is reduced, a multilayer leakage prevention mechanism is formed, and the sealing joint has the advantages of good sealing performance, high connection stability and suitability for high-pressure hydrogen gas conveying working conditions.

The utility model provides a desktop wire routing device, which relates to the technical field of routing boxes, and comprises a wire arrangement seat arranged on a desk plate and used for arranging and connecting cables, a wire outlet plate arranged at the upper end of the wire arrangement seat and used for directionally leading out the cables, and a routing box sleeved on the periphery of the wire arrangement seat at the lower end of the desk plate, a wire inserting row is inserted into the wiring box; the two ends of the wiring box are fixedly mounted at the lower end of the table board through mounting buckles, and a decorative plate is arranged on the side, away from the wiring box, of each mounting buckle; according to the utility model, cables can be led in and out in different directions by arranging the cable outlet holes in different directions, so that on one hand, the cables can be conveniently arranged and routed, on the other hand, the cables are effectively prevented from being wound and disordered, and the safety of cable wiring is improved; the wire guide holes facilitate access and access of cables, the cable routing efficiency is improved, the arrangement of the wire clamping grooves enables the cables to be clamped and fixed after the cables are connected, connection falling is effectively prevented, and the safety is improved.

The utility model discloses a kind of line connection reinforcing structure's surge protector, belong to surge protector technical field.It includes body, wiring hole and bolt, further include reinforcing mechanism being arranged above wiring hole.Reinforcing mechanism includes outer ring, the block head of linkage with outer ring, the limit block one being fixed in one side of block head, and including limit block two control component;Limit block two movably set in the other side of block head.Press outer ring to drive block head to slide, limit block one and limit block two are locked from both sides Block head, realize the compression of cable.Body side wall is additionally provided with splicing mechanism, splicing mechanism includes the vice cooperation with the triangular block on another body, for realizing the quick splicing between multiple bodies.The utility model is set reinforcing mechanism and splicing mechanism, solved the wiring in prior art easy to loosen, the problem that multiple protector splicing is complicated, with connection high reliability, security is good, the advantage of easy installation.

The utility model discloses a track assembly, a lamp and lighting equipment. The rail assembly comprises a guide rail body and a first magnet, and the guide rail body is provided with a first buckle structure; the first magnet is connected with the guide rail body; wherein the first magnet is used for being magnetically connected with a lamp, and the first buckle structure is used for being clamped with the lamp. The first magnet is connected with the guide rail body, the lamp is attracted by the first magnet to be connected to the guide rail body, and the connection position can be accurately found. The lamp is pressed, the first buckle structure and the lamp are clamped, assembly is completed, the installation position of the lamp is further determined through clamping, the lamp is prevented from falling off due to unstable magnetic connection, and the connection stability and safety of a product are improved.

The invention relates to the field of automobile parts, and discloses an automobile side liquefied natural gas cylinder body which comprises an inner container assembly, a steel plate is arranged on the outer wall of the inner container assembly, an outer rear seal head is arranged at one end of the steel plate, an outer front seal head is arranged at the other end of the steel plate, and a protective cover is arranged at the top of the outer rear seal head. A protection cover mounting ring is arranged at the bottom of the outer front end socket, nylon screws are arranged on one side of the protection cover mounting ring, a vacuumizing opening protection cover is mounted on the side, away from the outer front end socket, of the protection cover mounting ring through the nylon screws, and a vacuumizing opening assembly is arranged on one side of the bottom of the outer front end socket. Through the arrangement of the connecting structure, the inner container assembly can be conveniently connected with an external system, the connecting structure is externally protected through the protective cover, the connecting position of the connecting structure and the inner container assembly is protected through the outer rear sealing head, and therefore the effects of conveniently connecting the external system and improving the connecting safety and reliability are achieved.

The utility model discloses an outer frame wall connecting piece which comprises a connecting screw rod, one end of the connecting screw rod is in threaded connection with an embedded sleeve rod embedded in a main body structural beam, and the other end of the connecting screw rod is provided with a buckling assembly used for fixing an outer frame steel pipe. The embedded sleeve rod and the buckling assembly are connected through the connecting screw rod, stable connection between the building outer frame and the main body structure is ensured, the buckling assembly is used for fixing an outer frame steel pipe, and the outer frame is prevented from shaking or moving under the action of wind or other external force; therefore, the stability and safety of the whole building structure are improved, and the whole device is simple in structure and convenient for workers to mount and dismount.

The utility model relates to the technical field of electrical cabinets, and particularly discloses a modularized wiring structure in a cabinet body, which comprises a wiring frame, two first limiting plates are arranged on the inner side of the wiring frame, a first wiring plate is arranged between the two first limiting plates, and the first wiring plate is in sliding connection with the first limiting plates. The outer side of the first wiring plate is provided with a plurality of groups of first clamps for accommodating wire harnesses; two second limiting plates are arranged on the outer side of the wiring frame, a second wiring plate is arranged on the outer sides of the second limiting plates, the second wiring plate is in sliding connection with the second limiting plates, and multiple sets of second clamps used for containing wiring harnesses are arranged on the side, away from the second limiting plates, of the second wiring plate; the first wiring board and the second wiring board are designed in an adjustable mode, the restraining position can be adjusted according to the on-site circuit arrangement condition, flexibility is good, after the wiring harness is restrained, the two wiring boards are locked through the positioning assembly, it can be guaranteed that the two wiring boards do not move after the wiring harness is arranged, and circuit connection safety is improved.

The utility model relates to an electric connector assembly and a position guaranteeing device thereof. The position guaranteeing device comprises a lock catch elastic arm which extends along the plugging direction of the electric connector, wherein the front end of the lock catch elastic arm in the plugging direction is provided with a first lock catch which protrudes downwards; the pressing part is connected to the rear end of the lock catch elastic arm in the inserting direction; the first supporting arm and the second supporting arm extend downwards from the two sides of the rear end in the inserting direction of the lock catch elastic arm respectively; the third connecting arm and the fourth connecting arm extend backwards from the lower ends of the first supporting arm and the second supporting arm respectively and exceed the pressing part; and the stop block is connected to the rear ends of the third connecting arm and the fourth connecting arm. According to the electric connector assembly, three-section unlocking of the unlocking outer clamping handle, the unlocking signal terminal and the unlocking power terminal can be completed through one position guaranteeing device, operation is simplified, and the connection reliability and safety of the electric connector assembly are improved.

The invention discloses a hydraulic control type high-pressure sample transfer valve, and belongs to the technical field of sample transfer control devices for high-pressure samples in laboratories. Comprising a piston assembly and a sample transfer valve body, the piston assembly comprises a piston outer cylinder; one end of the sample transfer valve body is matched and connected with the piston outer cylinder, and the other end of the sample transfer valve body is provided with a first connecting screw thread for connecting a sampler valve; one end of the piston is connected with a piston rod, and the other end of the piston is connected with a piston stroke rod; one end of the piston stroke rod extends out of the piston outer cylinder; a hand pump pipeline connector is arranged on the wall face of a closed cavity formed by the piston outer cylinder and the piston. A needle valve assembly and a sample transfer high-pressure pipeline interface are arranged on the sample transfer valve body, and the sample transfer high-pressure pipeline interface is used for being connected with test equipment or a high-pressure brine pump; the piston of the sample transfer valve can be remotely controlled by the hand pump to perform opening and closing operation, and the hand pump is far away from the sampler, so that the safety of operators can be well protected.

This invention relates to the field of electric vehicle battery replacement technology, specifically to an automotive battery module employing a quick-locking and positioning structure. The module includes a battery body with a fixing frame on its outer wall and a fixing mechanism on its top. The fixing mechanism includes a docking unit on the top of the fixing frame, comprising a fixing bolt. The bottom of the fixing bolt is fixedly connected to the fixing frame, and the top of the fixing bolt has a top surface. The outer wall of the top surface has a mounting groove, and the outer wall of the fixing bolt near its center has a latch. An mounting cavity is formed inside the fixing bolt. A push rod is slidably connected inside the mounting cavity, and the top of the push rod has a top head that slidably connects to the inner wall of the mounting groove. This invention improves assembly efficiency and accuracy through integrated positioning and locking, enhances vibration resistance and anti-loosening safety through dual mechanical locking, optimizes disassembly and assembly logic, and reduces operation and maintenance costs through a purely mechanical design.

The utility model relates to the technical field of communication cables, in particular to a welding type communication cable. The technical scheme adopted by the utility model is that the cable comprises a cable main body structure, and is characterized in that the end part of the cable main body structure is provided with a cable connection mounting seat, and the right side of the cable connection mounting seat is provided with a cylindrical cable welding matching groove; a cable core main body structure of the cable main body structure penetrates out of the center position of the cable welding matching groove, the inner cylindrical surface of the cable welding matching groove is provided with welding stabilizing and fixing grooves which are evenly distributed in the circumferential direction, and the outer side of the cable connecting installation base is provided with a set of symmetrical cable connecting combination plates in the vertical direction. The utility model has the advantages that the cable core of the connecting cable can be inserted into the special matching hole, and the welding grooves are arranged in the two directions of the insertion position, so that the better connection firmness of the welding position can be ensured, and the special welding position is arranged in the welding process.

The invention relates to the technical field of wireless network communication, real-time audio and video transmission and rapid equipment pairing, in particular to a local area network image transmission method based on two-dimensional code session guidance, which comprises the following steps: after an image transmission device is connected with routing WiFi or a client hotspot, starting an HTTP control service and an audio and video stream pushing service; the plug flow service comprises plug flow based on a UDP (User Datagram Protocol) and an optional RTSP (Real Time Streaming Protocol) session service; and the device obtains a local area network IP and a port to construct a control URI and a media URI, and packages control or media access information, a one-time session token, a validity period, a device public key commitment value and a transmission strategy parameter into JSON session guide information to generate a two-dimensional code for display. The user side scans the two-dimensional code and then verifies the commitment value and the session token, a secure session bound with the equipment is established, and a control channel is upgraded to a WebSocket two-way channel after HTTP handshake; a media channel adopts UDP transmission and feeds back time delay change and packet loss statistics through an RTCP, a sending end performs congestion control based on time delay gradient estimation and an adaptive threshold value, and adaptively selects mixed NACK or FEC packet loss recovery and jitter buffer target delay according to round-trip time delay and a packet loss rate. Therefore, quick connection, impersonation resistance and low-delay stable preview can be realized under the weak network condition.

The utility model relates to the technical field of optical fiber transmission, and discloses an optical fiber transmission device convenient to disassemble and assemble, which comprises an optical fiber equipment main body, a first plugging unit and a second plugging unit. According to the optical fiber transmission device convenient to disassemble and assemble, through rapid contact and connection of the second contact terminal and the first contact terminal, the situations that time and labor are wasted in the assembly and disassembly operation, the efficiency is low, and use is inconvenient due to the fact that all optical fibers with crystal heads are inserted and pulled one by one are avoided; meanwhile, the connection function of different communication wire harnesses in the existing market can be met by utilizing the first plug-in unit and the second plug-in unit, and finally selective locking of the first mounting plate and the optical fiber equipment main body is realized through the first locking assembly; therefore, the connection stability and safety performance between the first contact terminal and the second contact terminal are improved while multiple groups of wire harnesses are rapidly mounted or dismounted at a time, and the technical effects of simple and convenient mounting and dismounting, operation time saving and maintenance efficiency improvement are achieved.

The utility model provides a lock, a locking structure and a display. The lock comprises a lock seat, a handle assembly, a lock body assembly and a linkage assembly. The handle assembly is rotatably connected to one side of the lock seat, the lock seat is connected with a plurality of lock body assemblies, one end of each lock body assembly extends out of the lock seat from the other side of the lock seat so as to be matched with an external lock hole or lock groove and other structures, and the locking effect is achieved. By arranging the lock body assemblies, the number of locking connection points between the displayers is increased, the problems that due to the fact that the number of the locking connection points is too small, stress on the displayers is not uniform, and connection is not stable are effectively solved, and connection safety and stability are improved. The linkage assembly is connected into the lock seat, the linkage assembly is in driving connection with the handle assembly, when a user rotates the handle assembly, the linkage assembly can drive the lock body assemblies to achieve synchronous movement between the locking state and the unlocking state, the locking process between displayers is simplified, and the operation efficiency is improved.

The utility model discloses an air spring protection device and cab rear suspension assembly, including the protection cover and the clamp, the lateral wall of protection cover is equipped with the opening of the air spring loading, the upper end of protection cover is equipped with a fixed part, the fixed part is formed by the edge of the clamping groove of protection cover and is used for the suspension of air spring shock absorber ring and is integrally extended to the outside, and the opening of fixed part is consistent with the extension direction of clamping groove, and the clamp is sleeved on the outside of fixed part to realize the fastening connection of protection cover and the upper part of air spring ring welding rod. In conclusion, the device effectively solves the pain point in the prior art, greatly improves the service life of air spring, reliability and the durability of the whole cab rear suspension assembly.

The invention discloses an environmentally friendly assembled prefabricated component, which relates to the technical field of assembled building components, and comprises: a steel bar skeleton, which is formed by binding and welding a plurality of horizontal and vertical steel bars; a grouting reinforcement component, which is welded to the inner lower side of the steel bar skeleton, and is used for grouting connection with steel bars on other prefabricated components, and for bending and pulling and reinforcing the steel bars on other prefabricated components; a concrete sheath, which is coated on the steel bar skeleton and the grouting reinforcement component to form a concrete wall. The invention can realize staggered bending processing of the upper ends of the connected steel bars through the coordinated arrangement of a compression and bending mechanism and a fixing and adjusting mechanism, and realize the reinforcement of the wall assembly by pulling the steel bars, and even if the hardened grouting material is damaged, the bent steel bars are not easy to fall out of the grouting sleeve, thereby ensuring the connection reliability and safety of the wall.