CN212359466U - Novel electric dynamic electric stay bar - Google Patents

Abstract

The utility model relates to a novel electronic electric stay bar, including electric stay bar casing, the stay tube casing cup joints in electric stay bar casing, the stay tube is installed in the stay tube casing, the lead screw is installed to the rear end of stay tube, the front end of lead screw passes through screw-nut and is connected with the rear end of stay tube, the front end and the joint ball socket of stay tube are connected, heterotypic pipe cup joints in the outside of lead screw and is located electric stay bar casing, the spring has been cup jointed with heterotypic pipe surface to the stay tube, the afterbody at the lead screw is installed at adjustable attenuator, the motor is installed in electric stay bar casing and is located the rear end of lead screw, be connected through the coupling subassembly between motor and the lead screw, integral type motor joint is installed to the rear end of electric stay bar casing. This novel electric stay bar inner structure is compact, and joint strength is high, contains adjustable attenuator subassembly simultaneously, can the development demand of platformization adjustment in order to adapt to different projects.

Description

Novel electric dynamic electric stay bar

Technical Field

The utility model relates to an electric stay bar, in particular to novel electronic electric stay bar.

Background

Along with the continuous innovation and the development of automobile technology, the traditional manual tail gate mode of opening is being replaced by the electrodynamic type tail gate more and more, and electronic tail gate vaulting pole is as the power actuating mechanism of electronic tail gate, and the electronic vaulting pole technique of innovation is that automobile tail gate switch realizes the development trend of intellectuality and travelling comfort. But the noise of current electronic tail-gate vaulting pole of car in the use is great, and the waterproof performance of motor is relatively poor for the motor takes place to damage because of getting damp or intaking easily, and then leads to the damage of electronic tail-gate vaulting pole, thereby has brought certain inconvenience for the use of the electronic tail-gate of car.

The publication number is: chinese patent CN209924733U discloses an electric stay bar inner conduit screw rod assembly structure of an automobile electric tail gate, which comprises a screw rod and an inner conduit, wherein the outer wall of one end of the inner conduit is provided with a plurality of bar-shaped holes，A screw rod nut is formed on the end pipe orifice in an injection molding mode, a bump for filling the strip-shaped hole is formed on the screw rod nut, the screw rod is screwed into the inner guide pipe through the screw rod nut, a damping limiting component is arranged at one end of the screw rod positioned in the inner guide pipe, and one end of the screw rod outside the inner guide pipe is connected into the damper; the other end of the inner conduit is radially coated with a ball-and-socket connector which partially extends into the inner conduit through rolling, a groove for bearing the inner conduit and formed by rolling is arranged on the ball-and-socket connector positioned in the inner conduit, a sealing ring is arranged in the groove, and the ball-and-socket connector positioned outside the inner conduit is connected with a ball head pin of the automobile tail gate strut mounting bracket through a ball socket. One end of the inner conduit connected with the ball socket connector has a waterproof function; the plastic screw rod nut is directly injected by the inner conduit with punched holes, so that the structure is simpler and the assembly is tight. However, the existing electrodynamic type tail gate stay bar still has the following defects: 1) the supporting tube is not reliably connected with the joint ball socket, so that the inner spring has explosion risk; 2) the motor joint structure is complex and is not easy to assemble; 3) the expansibility of the damper assembly is poor, and damper parts are required to be newly opened in different projects; 4) the service life of the product is short.

SUMMERY OF THE UTILITY MODEL

The utility model provides a novel electrokinetic electric vaulting pole, inner structure is compact, and joint strength is high, contains adjustable attenuator subassembly simultaneously, can the development demand of platformization adjustment in order to adapt to different projects.

The utility model adopts the following technical scheme: a novel electric brace bar comprising: the electric supporting rod comprises an electric supporting rod shell, wherein the supporting tube shell is sleeved in the electric supporting rod shell, the supporting tube is installed in the supporting tube shell, a lead screw is installed at the rear end of the supporting tube, the front end of the lead screw is connected with the rear end of the supporting tube through a lead screw nut, the front end of the supporting tube is connected with a joint ball socket, a special-shaped conduit is sleeved on the outer side of the lead screw and located in the electric supporting rod shell, a spring is sleeved on the surface of the supporting tube and the surface of the special-shaped conduit, an adjustable damper is installed at the tail of the lead screw, a motor is installed in the electric supporting rod shell and located at the rear end of the lead screw, the motor is connected with the lead screw through a coupling component, an integrated motor joint is installed at the rear end of the electric.

In the technical scheme, two ends of the electric stay bar are respectively connected with the car body and the tail gate through the joint ball socket and the motor joint, when the ECU receives the action signal, the ECU sends an instruction to enable the motor to start working, the motor transmits torque to the screw rod through the coupling component, the screw rod is connected with the supporting tube through the screw rod nut, the supporting tube is simultaneously driven by the screw rod and guided and restricted by the special-shaped guide tube, thereby realizing the extension/contraction of the supporting tube, and simultaneously, the spiral spring is preset in the inner part to assist the motor power, the tail gate can be opened and closed along with the extension/contraction of the stay bar, and because the adjustable damper is adopted, the electric support rod has the hovering function, the tail gate can be hovered at any opening position, and the internal resistance of the supporting tube can be accurately adjusted according to the opening requirements of the tail doors of different vehicle types so as to adapt to the use requirements under different use conditions.

Preferably, the joint ball socket comprises a ball socket and a metal joint, the ball socket and the metal joint are integrally formed through plastic coating, a groove is formed in the inner end of the metal joint, one end of the supporting pipe is clamped into the groove of the metal joint after being extruded and deformed inwards through a rolling groove process, and a metal flange edge is arranged at the outer end of the metal joint. In the prior art, often arrange the screw thread through at the stay tube surface, plastics ball socket internal surface, realize stay tube and plastics ball socket connection through the screw thread screw in, but the vaulting pole is at the motion in-process, because the angle difference of tail-gate and automobile body, the vaulting pole can receive certain revolving force, in order to prevent that the revolving force from leading to ball socket and stay tube to throw off, need scribble the thread glue on the screw thread or throw in the pin at last, and technology is complicated, and the reliability is poor, in case ball socket and stay tube throw off, the inside spring of vaulting pole will explode, threaten the user. For eliminating this hidden danger, the utility model discloses an integral type joint ball socket, mould technology through the package, unite two into one ball socket and metal joint, the metal joint inner of joint ball socket is provided with the slot simultaneously, with joint ball socket pre-income stay tube, rethread slot rolling technology extrusion stay tube surface is inwards warp, the slot part of card income metal joint, thereby realize joint ball socket and stay tube reliable connection, simultaneously in order to prevent thoroughly that the spring from exploding the risk, predetermine the metal flange limit at metal joint, bear the spring internal stress through the metal flange, current plastics ball socket design relatively, this design is safe and reliable more, the complicated thread gluing technology of scribbling has been saved simultaneously, the production technology is simplified, production efficiency is promoted.

Preferably, the adjustable damper comprises a cover plate, an upper friction plate, a lower friction plate, a wave spring and a damper shell, wherein the wave spring is placed at the bottom of the damper shell, the lower friction plate is placed above the wave spring, a clamping groove is formed in the end edge of the lower friction plate, the lower friction plate is installed in the damper shell in a matched mode through the clamping groove, the friction plate is placed above the lower friction plate, the upper friction plate is installed above the friction plate, a clamping groove is also formed in the end edge of the upper friction plate, the upper friction plate is installed in the damper shell in a matched mode through the clamping groove, the cover plate covers the top of the damper shell, and the friction plate is in butt joint with a screw rod through a driving wheel. The electric tail gate system always has a hovering function, namely the tail gate can be hovered at any opening position, for realizing the function, a certain internal resistance is required to be balanced with the gravity of the tail gate inside the support rod, so that the falling or the bouncing of the half-opened tail gate is prevented, and in order to increase the internal resistance, the utility model comprises a modular damper structure, wherein the friction plate is preset between a lower friction plate and an upper friction plate, under the action of the stress of a wave spring, the lower friction plate and the upper friction plate can tightly clamp the friction plate, and meanwhile, the friction plate can be connected with a screw rod in the support rod through a driving wheel, so that when the screw rod rotates, the friction plate can be driven to rotate, and due to the existence of the clamping force of the upper friction plate and the lower friction plate, the friction damping can be generated between the friction plate and the friction plate, thereby the internal resistance of the support rod is formed, and simultaneously, because parts are different in batches, The elasticity of spring and the size of other parts all can have the deviation to can lead to the attenuator of different batch part equipment, the damping force can have the deviation, for this, the utility model relates to a design with adjustable damping, increase the apron in last friction plate upper end, adjust the wave spring stroke through pressing the cover plate, until obtaining the damping effect of ideal, pass through laser welding or hot riveting technology at last, be connected apron and attenuator shell, can realize eliminating the influence of different batch part states, obtain accurate damping force effect, the extension, to different projects, have different internal resistance requirements, also can adjust the internal resistance size with this technology, only need adjust the technological parameter and need not new-opened part, realize the product platformization, reduce new-opened part quantity, the product management of being convenient for.

Preferably, the cover plate is fixedly connected with the damper shell through a laser welding or hot riveting process.

Preferably, the coupling assembly comprises a motor connecting shaft, a rubber buffer ring, a gasket and a connecting seat, the rubber buffer ring is installed between the motor connecting shaft and the connecting seat, the motor connecting shaft is directly inserted into the motor to complete assembly, and the connecting seat and the spline part of the screw rod are combined and fixed through the gasket in a riveting mode. Because the lead screw often is through spline and motor rigid connection, stop when the motor stops, the lead screw can be ceaselessly take place to strike with the motor, after certain durable number of times, motor or other internals inevitability can become invalid, and different customers are different to the durable number of times demand of product, in order to satisfy the demand of part customer to high durable number of times, the design of modularization shaft coupling, through set up cushion rubber in the middle of motor connecting axle and connecting seat, the motor connecting axle can the disect insertion motor accomplish the assembly, the connecting seat is fixed through the packing ring spin riveting with the distribution of lead screw spline portion. Through the design of the coupler, the assembly coaxiality requirement of the motor and the screw rod is reduced, the buffer is provided between the motor and the screw rod, and the service life of the product is greatly prolonged.

Preferably, the motor joint comprises a rear end ball socket, a wire groove pipe and a joint, wherein the rear end ball socket, the wire groove pipe and the joint are integrally injection-molded. At the other end of vaulting pole, motor end ball socket side often adopts split type design, and ball socket and joint are the separation promptly, has the screw thread characteristic in the ball socket, and at joint center trompil simultaneously, the bolt passes the joint centre bore, links to each other with ball socket internal thread characteristic again, and the cost is high, and the process is complicated, and because there is the bolt hole in the centre, inside motor pencil can only outwards stretch out through the outward flange region, is unfavorable for the assembly of pencil, the utility model discloses an optimize structural design, use integral type plastics ball socket, draw the pencil from ball socket central part, guarantee that the wall thickness is even all around, under the prerequisite of not loss intensity, reduced part quantity, simplified production technology, promoted production efficiency.

The utility model provides a pair of novel electronic vaulting pole's of electricity beneficial effect lies in:

1) the electric support rod has a compact internal structure and high connection strength, and simultaneously comprises an adjustable damper assembly, so that the electric support rod can be adjusted in a platform manner to meet the development requirements of different projects;

2) the joint ball socket is designed in a plastic-coated mode and comprises a metal part and a plastic part, the plastic ball socket is connected with a vehicle body to reduce running friction noise, the metal part is connected with a support tube rolling groove process, and a flange part can block a spring, so that the risk of explosion of the spring is reduced with great probability, and the safety coefficient is high;

3) the motor joint is integrally designed, is threaded in the center, has uniform wall thickness on the periphery and has both strength and assembly performance;

4) the design of the adjustable damper can self-define and adjust the internal stress of the spring by adjusting the press-in stroke, thereby realizing the product platformization and adjusting the technological parameters by different projects;

5) through the optimal design to the shaft coupling subassembly, not only reduced the assembly axiality requirement of motor and lead screw, provided the buffering moreover between motor and lead screw, improved product life greatly.

Drawings

Fig. 1 is a schematic view of the overall assembly of the present invention.

Fig. 2 is an enlarged schematic view of the assembly of the partial structure of the present invention.

Fig. 3 is a cross-sectional view of the ball and socket of the present invention.

Fig. 4 is a schematic view of the assembly of the middle joint ball socket and the support tube according to the present invention.

Fig. 5 is a sectional view of the adjustable damper of the present invention.

Fig. 6 is an exploded perspective view of the adjustable damper of the present invention.

Fig. 7 is a cross-sectional view of the motor connector of the present invention.

Fig. 8 is an exploded perspective view of the coupling assembly of the present invention.

In the figure: 1. a joint ball socket; 11. a ball socket; 12. a metal joint; 13. a metal flange edge; 14. a trench; 2. a support tube housing; 3. supporting a tube; 4. a spring; 5. a profiled conduit; 6. a screw rod; 61. a feed screw nut; 62. an electrical strut housing; 7. an adjustable damper; 71. a cover plate; 72. an upper friction plate; 73. a friction plate; 74. a lower friction plate; 75. a wave spring; 76. a damper housing; 8. a motor; 9. a motor joint; 91. a rear ball socket; 92. a wire chase pipe; 93. a joint; 94. a sawtooth-shaped sealing ring; 10. a coupling assembly; 101. a motor connecting shaft; 102. a rubber buffer ring; 103. a gasket; 104. a connecting seat.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by a person skilled in the art without any inventive step are within the scope of the present invention.

Referring to fig. 1 to 8, a novel electric brace includes:

the electric support rod shell 62 is sleeved with the support tube shell 2 in the electric support rod shell 62, the support tube shell 2 can stretch and move in the electric support rod shell 62, the support tube 3 is installed in the support tube shell 2, the support tube 3 is used as an actuating mechanism of thrust in the electric support rod and can be pushed out or recovered to realize opening and closing of a tail gate, the rear end of the support tube 3 is provided with a screw rod 6, the front end of the screw rod 6 is connected with the rear end of the support tube 3 through a screw rod nut 61, the front end of the support tube 3 is connected with a joint ball socket 1, the joint ball socket 1 is connected with a vehicle body, the special-shaped conduit 5 is sleeved outside the screw rod 6 and is positioned in the electric support rod shell 62, the special-shaped conduit 5 is a guide part of the support tube 3 and is used for guiding and restricting the support tube 3 in the moving process, the surfaces of the support tube 3 and the special-shaped conduit 5 are sleeved with springs, the adjustable damper 7 is installed at the tail of the screw rod 6, the motor 8 is installed in the electric support rod shell 62 and is located at the rear end of the screw rod 6, the motor 8 is connected with the screw rod 6 through the coupler assembly 10, the integrated motor joint 9 is installed at the rear end of the electric support rod shell 62, the integrated motor joint 9 is integrally formed and fixed at the tail of the motor 8, and the butt joint of the electric support rod shell 62 and the integrated motor joint 9 is sealed through the sawtooth-shaped sealing ring 94.

In the embodiment, two ends of the electric support rod are respectively connected with the vehicle body and the tail gate through the joint ball socket 1 and the motor joint 9, when the ECU receives an action signal, an instruction is sent to enable the motor 8 to start working, the motor 8 transmits torque to the screw rod 6 through the coupling component 10, the screw rod 6 is connected with the support tube 3 through the screw rod nut 61, the support tube 3 is simultaneously driven by the screw rod 6 and guided and restricted by the special-shaped conduit 5, thereby realizing the extension/contraction of the support tube 3, meanwhile, the spiral spring 4 is preset in the electric support rod to assist the motor force, the tail gate can be opened and closed along with the extension/contraction of the support tube 3, due to the adoption of the adjustable damper 7, the electric support rod has a hovering function, the tail gate can be hovered at any opening position, and the internal resistance of the support tube can be accurately adjusted according to the opening requirements, so as to adapt to the use requirements under different use conditions.

Referring to fig. 3 and 4, the joint ball socket 1 comprises a ball socket 11 and a metal joint 12, the ball socket 11 and the metal joint 12 are integrally molded by plastic coating, a groove 14 is formed at the inner end of the metal joint 12, one end of the support tube 3 is extruded by a rolling groove process and is inwards deformed and then clamped into the groove 14 of the metal joint 12, and a metal flange 13 is formed at the outer end of the metal joint 12. In the prior art, usually through arranging the screw thread at the surface of support tube 3, the internal surface of plastics ball socket 11, realize support tube 3 and plastics ball socket 11 through the screw thread screw in and be connected, but the vaulting pole is at the motion in-process, because the angle difference of tail-gate and automobile body, the vaulting pole can receive certain revolving force, in order to prevent that the revolving force from leading to ball socket 11 and support tube 3 to throw off, need scribble the thread glue on the screw thread or throw in the pin at last, the technology is complicated, the reliability is poor, in case ball socket 11 is thrown off with support tube 3, spring 4 inside the vaulting pole will explode, threaten the. For eliminating this hidden danger, the utility model discloses an integral type joint ball socket 1, mould technology through the package, unite ball socket 11 and metal joint 12 two into one, joint ball socket 1's metal joint 12 the inner is provided with slot 14 simultaneously, with joint ball socket 1 pre-income stay tube 3, 3 surface inward deformations of rethread slot rolling technology extrusion stay tube, the slot 14 part of card income metal joint 12, thereby realize joint ball socket 1 and 3 reliable connections of stay tube, simultaneously in order to prevent thoroughly that spring 4 from exploding the risk, metal flange limit 13 is predetermine at metal joint 12, bear 4 internal stresses of spring through metal flange limit 13, current plastics ball socket design relatively, this design is safe and reliable more, the complicated thread gluing technology of scribbling has been saved simultaneously, the production technology is simplified, and the production efficiency is improved.

Referring to fig. 5 and 6, the adjustable damper 7 includes a cover plate 71, an upper friction plate 72, a friction plate 73, a lower friction plate 74, a wave spring 75 and a damper housing 76, wherein the wave spring 75 is disposed at the bottom of the damper housing 76, the lower friction plate 74 is disposed above the wave spring 75, a notch is disposed on an end edge of the lower friction plate 74, the lower friction plate 74 is fitted in the damper housing 76 through the notch, the friction plate 73 is disposed above the lower friction plate 74, the upper friction plate 72 is disposed above the friction plate 73, a notch is also disposed on an end edge of the upper friction plate 72, the upper friction plate 72 is fitted in the damper housing 76 through the notch, the cover plate 71 covers the top of the damper housing 76, and the friction plate 73 is in butt joint with the screw rod 6 through a driving wheel. The electric tail gate system always has a hovering function, namely, the tail gate can be hovered at any opening position, in order to realize the function, a certain internal resistance is required to be in a supporting rod to reach a mechanical balance with the gravity of the tail gate, so that the falling or the upward bouncing of the half-opened tail gate is prevented, in order to increase the internal resistance, the utility model comprises a modular damper structure, a friction plate 73 is preset between a lower friction plate 74 and an upper friction plate 72, under the action of the stress of a wave spring 75, the lower friction plate 74 and the upper friction plate 72 can tightly clamp the friction plate 73, and the friction plate 73 can be connected with a screw rod 6 in the supporting rod through a driving wheel, so that when the screw rod 6 rotates, the friction plate 73 can be driven to rotate, and because of the existence of the clamping force of the upper friction plate 72 and the lower friction plate 74, the friction damping can be generated between the friction plate 73 and the friction plate, thereby forming the internal, because the batches of parts are different, the friction coefficient of the friction plate 73, the elasticity of the wave spring 75 and the sizes of other parts can deviate, so that the damper assembled by parts of different batches can be caused, and the damping force can deviate, therefore, the utility model designs a damping adjustable design, a cover plate 71 is added at the upper end of an upper friction plate 72, the stroke of the wave spring 75 is adjusted by pressing the cover plate 71 until an ideal damping effect is obtained, finally, the cover plate 71 is connected with a damper shell 76 by a laser welding or hot riveting process, thereby eliminating the influence of the states of parts of different batches, obtaining an accurate damping force effect, expanding, having different internal resistance requirements aiming at different projects, also adjusting the internal resistance by the process, only needing to adjust process parameters without newly opening parts, realizing the product platformization and reducing the number of newly opened parts, and the product management is convenient.

Referring to fig. 8, the coupling assembly 10 includes a motor connecting shaft 101, a rubber cushion ring 102, a washer 103 and a connecting seat 104, the rubber cushion ring 102 is installed between the motor connecting shaft 101 and the connecting seat 104, the motor connecting shaft 101 is directly inserted into the motor 8 to complete assembly, and the connecting seat 104 and the spline portion of the lead screw 6 are matched and fixed by spin riveting through the washer 103. Because lead screw 6 often is through spline and motor 8 rigid connection, stop when the incessant opening of motor 8, lead screw 6 can incessantly take place to strike with motor 8, after certain durable number of times, motor 8 or other internals inevitable can become invalid, and different customers are different to the durable number of times demand of product, in order to satisfy partial customer's demand to high durable number of times, the design of modularization shaft coupling, through set up rubber buffer ring 102 in the middle of motor connecting axle 101 and connecting seat 104, motor connecting axle 101 can directly insert motor 8 and accomplish the assembly, connecting seat 104 merges with lead screw 6 spline portion and fixes through the packing ring 103 riveting soon. Through the optimal design to the shaft coupling, not only reduced the assembly axiality requirement of motor 8 and lead screw 6, provided the buffering moreover between motor 8 and lead screw 6, improved product life greatly.

Referring to fig. 7, the motor connector 9 includes a rear ball socket 91, a wire casing pipe 92 and a connector 93, wherein the rear ball socket 91, the wire casing pipe 92 and the connector 93 are integrally injection-molded, and the connector 93 is fixed on the housing of the motor 8. At the other end of vaulting pole, 8 end ball sockets of motor side, generally adopt split type designs among the prior art, ball socket and joint are the separation promptly, have the screw thread characteristic in the ball socket, at joint center trompil simultaneously, the bolt passes the joint centre bore, links to each other with ball socket internal thread characteristic again, and the cost is high, and the process is complicated, and because there is the bolt hole in the centre, inside motor pencil can only outwards stretch out through the outward flange region, is unfavorable for the assembly of pencil. The utility model discloses an optimize structural design, use integral type plastics ball socket, draw forth the pencil from the wire casing pipe 92 part at ball socket center, guarantee that the wall thickness is even all around, under the prerequisite of not losing intensity, reduced part quantity, simplified production technology, promoted production efficiency.

The electric support rod has a compact internal structure and high connection strength, and simultaneously comprises an adjustable damper assembly, so that the electric support rod can be adjusted in a platform manner to meet the development requirements of different projects; the joint ball socket is designed in a plastic-coated mode and comprises a metal part and a plastic part, the plastic ball socket is connected with a vehicle body to reduce running friction noise, the metal part is connected with a support tube rolling groove process, and a flange part can block a spring, so that the risk of explosion of the spring is reduced with great probability, and the safety coefficient is high; the motor joint is integrally designed, is threaded in the center, has uniform wall thickness on the periphery and has both strength and assembly performance; the design of the adjustable damper can self-define and adjust the internal stress of the spring by adjusting the press-in stroke, thereby realizing the product platformization and adjusting the technological parameters by different projects; through the optimal design to the shaft coupling subassembly, not only reduced the assembly axiality requirement of motor and lead screw, provided the buffering moreover between motor and lead screw, improved product life greatly.

The above description is a preferred embodiment of the present invention, but the present invention should not be limited to the disclosure of the embodiment and the accompanying drawings, and therefore, all equivalents and modifications that can be accomplished without departing from the spirit of the present invention are within the protection scope of the present invention.

Claims (6)

1. The utility model provides a novel electronic electric stay bar which characterized in that includes: the electric supporting rod comprises an electric supporting rod shell, wherein the supporting tube shell is sleeved in the electric supporting rod shell, the supporting tube is installed in the supporting tube shell, a lead screw is installed at the rear end of the supporting tube, the front end of the lead screw is connected with the rear end of the supporting tube through a lead screw nut, the front end of the supporting tube is connected with a joint ball socket, a special-shaped conduit is sleeved on the outer side of the lead screw and located in the electric supporting rod shell, a spring is sleeved on the surface of the supporting tube and the surface of the special-shaped conduit, an adjustable damper is installed at the tail of the lead screw, a motor is installed in the electric supporting rod shell and located at the rear end of the lead screw, the motor is connected with the lead screw through a coupling component, an integrated motor joint is installed at the rear end of the electric.

2. The novel electro-kinetic brace bar of claim 1, wherein: the ball socket of the joint comprises a ball socket and a metal joint, the ball socket and the metal joint are integrally formed through plastic coating, a groove is formed in the inner end of the metal joint, one end of the supporting pipe is clamped into the groove of the metal joint after being extruded and deformed inwards through a rolling groove process, and a metal flange edge is arranged at the outer end of the metal joint.

3. The novel electro-kinetic brace bar of claim 1, wherein: the adjustable damper comprises a cover plate, an upper friction plate, a lower friction plate, a wave spring and a damper shell, wherein the wave spring is placed at the bottom of the damper shell, the lower friction plate is placed above the wave spring, a clamping groove is formed in the end edge of the lower friction plate, the lower friction plate is installed in the damper shell in a matching mode through the clamping groove, the friction plate is placed above the lower friction plate, the upper friction plate is installed above the friction plate, a clamping groove is also formed in the end edge of the upper friction plate, the upper friction plate is installed in the damper shell in a matching mode through the clamping groove, the cover plate covers the top of the damper shell, and the friction plate is in butt joint with a screw rod through a driving wheel.

4. The novel electro-kinetic brace bar of claim 3, wherein: the cover plate is fixedly connected with the damper shell through a laser welding or hot riveting process.

5. The novel electro-kinetic brace bar of claim 1, wherein: the coupler assembly comprises a motor connecting shaft, a rubber buffer ring, a gasket and a connecting seat, wherein the rubber buffer ring is installed between the motor connecting shaft and the connecting seat, the motor connecting shaft is directly inserted into a motor to complete assembly, and the connecting seat and the spline part of the screw rod are combined and fixed through the gasket in a riveting mode.

6. The novel electro-kinetic brace bar of claim 1, wherein: the motor joint comprises a rear end ball socket, a wire groove pipe and a joint, wherein the rear end ball socket, the wire groove pipe and the joint are integrally formed in an injection molding mode.

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