A metal shell lightweight limiter assembly for a vehicle door system

Abstract

The present invention relates to the technical field of automobile parts, and discloses a metal shell lightweight limiter assembly for a vehicle door system, comprising a pull plate and a limit assembly, wherein the pull plate is inserted into the limit assembly, and the limit assembly comprises a metal cover shell, and the metal cover shell is sleeved on the outer side of the pull plate, and a metal cover plate is arranged on one side of the metal cover shell; when the vehicle door is opened, the metal cover plate is driven to slide on the outer wall of the pull plate, and then under the cooperation of a transmission assembly and a lubrication assembly, lubricating oil enters into the sponge, and the extrusion of the sponge can make the lubricating oil inside the sponge evenly spread on the outer wall of the pull plate, which plays a lubricating role, because the slider is subjected to greater force pressure on the thicker part of the pull plate, resulting in increased wear thereof, and at the same time, the contact and extrusion degree between the sponge and the pull plate is relatively increased, and the amount of lubricating oil released is also increased, so that the amount of lubricating oil released from the sponge can be automatically adjusted according to the parts of the pull plate with different degrees of wear.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts, and in particular to a metal shell lightweight limiter assembly of a door system. Background Art

[0002] The door stopper is an indispensable part of the door accessories. With the development of the overall shape of the car, the appearance and function of the stopper have become diversified. The car stopper is a positioning device for the angle of the door, allowing the door to self-position when opened.

[0003] There are automobile door limiters in the prior art. For example, a Chinese utility model patent with authorization announcement number CN209723962U discloses a limiter assembly. In order to solve the problem in the prior art that the automobile door can be self-positioned when opened and avoid making a harsh sound, an arm insert is provided inside the arm, a limit shaft is provided at one end of the arm insert, a limit cover is provided at one end of the arm insert, cover shell fixing shafts are provided on both sides of the limit cover, and there are two cover shell fixing shafts, a limit block is provided on one side of the limit cover, and there are two limit blocks, a shock absorbing block is provided on one side of the limit block, and there are two shock absorbing blocks, a bracket riveted shaft is provided on one side of the shock absorbing block, and there are two bracket riveted shafts, a gasket is provided on the outside of the bracket riveted shaft, and there are two gaskets, a cover plate is provided on one side of the bracket riveted shaft, and a limit seat is provided on one side of the cover plate.

[0004] However, the above patent still has certain shortcomings. During the long-term use of the automobile limiter, a large amount of dust and impurities are easily accumulated on its surface. The dust and impurities will adhere to the surface of the limiter, increase the friction coefficient between the parts, and thus aggravate the wear of the limiter. In the long run, it may cause the function of the limiter to decline or even fail. In addition, the limiter has a mechanical structure inside, and the friction resistance between its internal parts will increase significantly if the limiter lacks lubrication, making it difficult to open and close the door, and may even cause jamming.

[0005] Therefore, the prior art urgently needs a lightweight limiter assembly of a metal shell of a vehicle door system. Summary of the invention

[0006] The present application aims to solve the technical problem that a vehicle door stopper is difficult to lubricate and clean.

[0007] The embodiment of the present invention provides a metal shell lightweight limiter assembly for a vehicle door system, comprising a pull plate and a limiter assembly, wherein the pull plate is plugged into the limiter assembly, the limiter assembly comprises a metal cover shell sleeved on the outside of the pull plate, a metal cover plate is arranged on one side of the metal cover shell, a transmission assembly is arranged inside the metal cover shell, a lubrication assembly is arranged inside the metal cover shell, and the lubrication assembly is located on one side of the transmission assembly;

[0008] The transmission assembly includes an oil storage tank arranged inside the vehicle door and a fixed rod fixedly connected to the inner wall of the metal cover shell, the outer wall of the fixed rod is rotatably provided with a fixed shaft, one end of the fixed shaft is fixed with a transmission gear, a driving rack is fixed to the side of the pull plate close to the transmission gear, and the driving rack is in contact with the outer wall of the pull plate, and the transmission gear is meshed with the driving rack, a fixed rotating rod is fixed to the other end of the fixed shaft, a guide block is fixed to one side of the fixed rotating rod, a sliding groove rod is slidably provided on the outer side of the guide block, an upper extension rod is slidably provided inside the fixed rod and extends to the outer side thereof, and a connecting rod is fixed between the upper extension rod and the sliding groove rod.

[0009] As a preferred solution of a metal shell lightweight limiter assembly for a vehicle door system of the present invention, a guide groove is provided on a side of the slide rod close to the guide block, and the guide groove matches the guide block.

[0010] As a preferred solution of a metal shell lightweight limiter assembly for a vehicle door system of the present invention, the lubrication component includes an upper sliding cylinder fixed to the inner wall of the metal cover shell, and the upper sliding cylinder is located on one side of the upper extension rod, an oil filling piston fixed to one end of the upper extension rod is slidably arranged on the inner wall of the upper sliding cylinder, an oil inlet extending to the inner side of the upper sliding cylinder is arranged at the bottom end of the upper sliding cylinder, an oil outlet is arranged on one side of the upper sliding cylinder, one end of the oil inlet is connected to the interior of the upper sliding cylinder, and an oil pipe is fixed to the other end of the oil inlet.

[0011] As a preferred solution of a metal shell lightweight limiter assembly for a vehicle door system of the present invention, the lubrication component also includes two sponges in contact with the outer wall of the pull plate, and the two sponges are fixedly connected to the inner wall of the metal cover shell, and two hole seats fixedly connected to the top of the two sponges are fixed inside the metal cover shell, and the top of the two hole seats are fixed with oil filling seats, and two oil filling pipes are fixed between the two oil filling seats and the oil outlet, and the top of the oil filling seat is provided with an oil inlet hole, and a plurality of dispersed holes are opened inside the hole seat, and the plurality of dispersed holes are evenly distributed inside the hole seat, and each dispersed hole passes through both ends of the hole seat.

[0012] As a preferred solution of a metal shell lightweight limiter assembly for a vehicle door system of the present invention, the inner walls of the oil inlet and the oil outlet are both rotatably connected to a one-way plate, a lower block is provided below the one-way plate located inside the oil inlet, and the lower block is fixedly connected to the inner wall of the oil inlet, and the lower block contacts the bottom end of the one-way plate, a lower torsion spring is fixed between the inner wall of the oil inlet and the one-way plate, an upper block is provided on the one-way plate located inside the oil outlet, close to the oil filling piston, and the upper block is fixedly connected to the inner wall of the oil outlet, and the upper block contacts the outer wall of one side of the one-way plate, and an upper torsion spring is fixed between the inner wall of the oil outlet and the upper block.

[0013] As a preferred solution of a metal shell lightweight limiter assembly for a vehicle door system of the present invention, a cleaning assembly is arranged inside the metal cover shell below the transmission assembly, and the cleaning assembly includes a lower extension rod fixed to the bottom end of the upper extension rod, and two piston push rods are fixed to the bottom end of the lower extension rod, and an air suction piston is fixed to the ends of the two piston push rods, and each of the air suction pistons is slidably connected to a lower sliding cylinder on the arc-shaped outer wall, and the lower sliding cylinder is fixedly connected to the inner wall of the metal cover shell, and a pressure relief port is arranged at the top of each lower sliding cylinder, and two air guide pipes are fixed on one side of each lower sliding cylinder, and two sets of air outlets fixed to the inner wall of the metal cover shell are fixed at the other end of the two air guide pipes.

[0014] As a preferred solution of a metal shell lightweight limiter assembly for a vehicle door system of the present invention, two brushes are fixed on both sides of the inner wall of the metal cover shell, and the two brushes are respectively located below the two pairs of air outlets, a pressure relief rotating plate is rotated inside the pressure relief port, and a reset torsion spring is fixed between the pressure relief rotating plate and the pressure relief port.

[0015] As a preferred solution of a lightweight limiter assembly of a metal shell for a vehicle door system of the present invention, the limiter assembly also includes a metal cover plate engaged with the metal cover shell, and a plurality of clamping parts engaged with the metal cover shell are fixed at the edge of the metal cover plate, two sliders are arranged inside the metal cover shell, and the two sliders are symmetrically arranged about the transverse center axis of the metal cover shell, two rubber springs are respectively arranged inside the metal cover shell and between the two sliders, and the two sliders are respectively engaged with the two rubber springs, two rivet nuts are respectively fixed at both ends of the metal cover shell, and trapezoidal seats are provided inside the two sliders, and the rivet nuts are fixed to the vehicle door by screws.

[0016] As a preferred solution of a lightweight limiter assembly of a metal shell for a vehicle door system of the present invention, a pull plate insert is arranged inside the pull plate, a bracket is arranged on the side of the pull plate close to the metal cover shell, a pin is inserted inside the bracket, and the pin passes through both ends of the pull plate, and a shock absorbing block is arranged inside the other end of the pull plate.

[0017] As a preferred solution of the metal shell lightweight limiter assembly of a vehicle door system of the present invention, an oil inlet pipe is arranged between the oil inlet and the oil storage tank, and lubricating oil is arranged inside the oil storage tank.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] First, when the vehicle door is opened, the present invention drives the metal cover plate to slide on the outer wall of the pull plate, and then the lubricating oil enters the sponge under the cooperation of the transmission component and the lubricating component. The sponge is squeezed so that the lubricating oil inside it is evenly applied to the outer wall of the pull plate, which plays a lubricating role. Because the slider exerts greater force on the thicker part of the pull plate, its wear increases. At the same time, the contact and squeezing degree between the sponge and the pull plate is relatively increased, and the amount of lubricating oil released is also increased, so that the amount of lubricating oil released by the sponge can be automatically adjusted according to the parts of the pull plate with different degrees of wear;

[0020] Secondly, when the vehicle door is opened, the present invention can drive the brush to remove larger impurities on the surface of the pull plate under the cooperation of the transmission component and the cleaning component. At the same time, the air outlet can be used to vent air and remove the dust remaining on the surface of the pull plate, thereby playing a cleaning role and avoiding the problem of corrosion on the surface of the limiter caused by dust adhesion that affects its service life. At the same time, it can improve the smoothness of the opening and closing of the vehicle door and reduce the occurrence of problems such as jamming and abnormal noise caused by dust accumulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a front view of the overall three-dimensional diagram of the limiter assembly of the present invention;

[0023] Figure 2 An exploded view of the limiter assembly of the present invention;

[0024] Figure 3 It is a bottom-up stereoscopic view of the limiter assembly of the present invention;

[0025] Figure 4 It is a side sectional view of the limiter assembly of the present invention;

[0026] Figure 5 It is a schematic diagram of the structure of the limit assembly of the present invention;

[0027] Figure 6 For the present invention Figure 5 A partial enlarged view of middle A;

[0028] Figure 7 For the present invention Figure 5 A partial enlarged view of B in the middle;

[0029] Figure 8It is a schematic diagram of the transmission assembly structure of the present invention;

[0030] Fig. 9 This is a schematic diagram of the connection structure between the oil filling seat and the sponge of the present invention;

[0031] Fig.10 is a cross-sectional view of a fixing rod of the present invention;

[0032] Fig.11 It is a partial front sectional view of the limiter assembly of the present invention.

[0033] In the figure: 1, pull plate; 101, pull plate insert; 12, shock absorber; 2, limit assembly; 21, metal cover; 201, rivet nut; 202, metal cover; 3, slider; 4, rubber spring; 5, bracket; 51, pin;

[0034] 22, transmission assembly; 221, transmission gear; 222, driving rack; 223, fixed shaft; 224, fixed rod; 225, fixed rotating rod; 226, guide block; 227, slide rod; 228, upper extension rod;

[0035] 23. Lubrication assembly; 231. Upper slide cylinder; 232. Oil injection piston; 233. Oil injection pipe; 234. Oil injection seat; 235. Hole seat; 236. Sponge; 237. Oil inlet; 238. Oil outlet; 239. One-way piece;

[0036] 24. Cleaning assembly; 241. Lower extension rod; 242. Piston push rod; 243. Lower sliding cylinder; 244. Pressure relief port; 245. Air guide pipe; 246. Air outlet; 247. Pressure relief rotating plate; 248. Brush. DETAILED DESCRIPTION

[0037] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0038] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0039] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0040] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] like Figures 1 to 11 As shown, according to one aspect of the present invention, a metal shell lightweight limiter assembly for a vehicle door system is provided, comprising a pull plate 1 and a limiter assembly 2, wherein the pull plate 1 is plugged into the limiter assembly 2, and the limiter assembly 2 comprises a metal cover 21 sleeved on the outside of the pull plate 1, a metal cover plate 202 is arranged on one side of the metal cover 21, a transmission assembly 22 is arranged inside the metal cover 21, a lubrication assembly 23 is arranged inside the metal cover 21, and the lubrication assembly 23 is located on one side of the transmission assembly 22;

[0043] The transmission assembly 22 includes an oil storage tank arranged inside the vehicle door and a fixed rod 224 fixedly connected to the inner wall of the metal cover 21, a fixed shaft 223 is rotatably arranged on the outer wall of the fixed rod 224, a transmission gear 221 is fixed to one end of the fixed shaft 223, a driving rack 222 is fixed to the side of the pull plate 1 close to the transmission gear 221, and the driving rack 222 is in contact with the outer wall of the pull plate 1, and the transmission gear 221 is meshed with the driving rack 222, a fixed rotating rod 225 is fixed to the other end of the fixed shaft 223, a guide block 226 is fixed to one side of the fixed rotating rod 225, a sliding groove rod 227 is slidably arranged on the outer side of the guide block 226, an upper extension rod 228 extending to the outer side of the fixed rod 224 is slidably arranged inside the fixed rod 224, and a connecting rod is fixed between the upper extension rod 228 and the sliding groove rod 227.

[0044] A guide groove is formed on one side of the slide rod 227 close to the guide block 226 , and the guide groove matches the guide block 226 .

[0045] The lubrication assembly 23 includes an upper sliding cylinder 231 fixed to the inner wall of the metal cover shell 21, and the upper sliding cylinder 231 is located on one side of the upper extension rod 228. An oil injection piston 232 fixed to one end of the upper extension rod 228 is slidably arranged on the inner wall of the upper sliding cylinder 231. An oil inlet 237 extending to the inner side thereof is arranged at the bottom end of the upper sliding cylinder 231. An oil outlet 238 is arranged on one side of the upper sliding cylinder 231. One end of the oil inlet 237 is connected to the interior of the upper sliding cylinder 231, and an oil delivery pipe is fixed to the other end of the oil inlet 237.

[0046] The lubrication assembly 23 also includes two sponges 236 in contact with the outer wall of the pull plate 1, and the two sponges 236 are fixedly connected to the inner wall of the metal cover shell 21, and two hole seats 235 are fixedly connected to the top of the two sponges 236 respectively inside the metal cover shell 21, and the top of the two hole seats 235 are fixed with oil filling seats 234, and two oil filling pipes 233 are fixed between the two oil filling seats 234 and the oil outlet 238, and the top of the oil filling seat 234 is provided with an oil inlet hole, and a plurality of dispersed holes are opened inside the hole seat 235, and the plurality of dispersed holes are evenly distributed inside the hole seat 235, and each dispersed hole passes through both ends of the hole seat 235.

[0047] The inner walls of the oil inlet 237 and the oil outlet 238 are both rotatably connected to the one-way piece 239, and a lower stopper is arranged below the one-way piece 239 inside the oil inlet 237, and the lower stopper is fixedly connected to the inner wall of the oil inlet 237 and contacts the bottom end of the one-way piece 239, and a lower torsion spring is fixed between the inner wall of the oil inlet 237 and the one-way piece 239, and an upper stopper is arranged on the side of the one-way piece 239 inside the oil outlet 238 close to the oil filling piston 232, and the upper stopper is fixedly connected to the inner wall of the oil outlet 238 and contacts the outer wall of one side of the one-way piece 239, and an upper torsion spring is fixed between the inner wall of the oil outlet 238 and the upper stopper.

[0048] The limiting assembly 2 also includes a metal cover plate 202 that is engaged with the metal cover shell 21, and a plurality of clamping parts that are engaged with the metal cover shell 21 are fixed at the edge of the metal cover plate 202. Two sliders 3 are arranged inside the metal cover shell 21, and the two sliders 3 are symmetrically arranged about the transverse center axis of the metal cover shell 21. Two rubber springs 4 are respectively arranged inside the metal cover shell 21 and between the two sliders 3. The two sliders 3 are respectively engaged with the two rubber springs 4. Two rivet nuts 201 are respectively fixed at both ends of the metal cover shell 21. Trapezoidal seats are arranged inside the two sliders 3. The rivet nuts 201 are fixed to the vehicle door by screws.

[0049] A pull plate insert 101 is provided inside the pull plate 1, a bracket 5 is provided on the side of the pull plate 1 close to the metal cover 21, a pin 51 is inserted inside the bracket 5, and the pin 51 passes through both ends of the pull plate 1, and a shock absorbing block 12 is provided inside the other end of the pull plate 1.

[0050] An oil inlet pipe is provided between the oil inlet port 237 and the oil storage tank, and lubricating oil is provided inside the oil storage tank.

[0051] When the car door is opened, the car door pulls the metal cover 21 fixedly connected to it to slide on the outside of the pull plate 1, and the pull plate 1 can rotate around the car body. In this process, the rubber spring 4 undergoes elastic deformation to squeeze the slider 3 close to the outer wall of the pull plate 1, so that the transmission gear 221 fits with the driving rack 222. Since the transmission gear 221 is meshed with the driving rack 222, the sliding of the metal cover 21 can drive the transmission gear 221 to rotate, and then drive the fixed shaft 223 fixed at its end to rotate around the contact position with the fixed rod 224. The rotation of the fixed shaft 223 can drive the fixed rotating rod 225 fixed at its end to rotate, so that the fixed rotating rod 22 The guide block 226 fixed at the other end makes a circular motion, and the guide block 226 can slide on one side of the slide rod 227. Due to the limitation of the connecting rod, the slide rod 227 can only move along the movement direction of the upper extension rod 228. Therefore, the circular motion of the guide block 226 can drive the slide rod 227 to slide left and right, and at the same time drive the upper extension rod 228 fixed thereto to slide back and forth inside the fixed rod 224, and then drive the oil injection piston 232 fixed at the end of the upper extension rod 228 to slide back and forth inside the upper slide cylinder 231. When the oil injection piston 232 slides from the right position of the upper slide cylinder 231 to the leftmost position, a negative pressure is generated inside the upper slide cylinder 231 during this process. The one-way piece 239 in the oil inlet 237 can be driven to rotate and open the one-way piece 239 in the oil outlet 238. At the same time, the one-way piece 239 in the oil outlet 238 can be blocked by the upper block, so that the left side of the oil outlet 238 is in a semi-sealed state. With the continuous sliding of the oil injection piston 232, the lubricating oil in the oil storage tank can enter the upper slide cylinder 231 through the oil inlet pipe. When the oil injection piston 232 slides from the leftmost position of the upper slide cylinder 231 to the right, the one-way piece 239 in the oil outlet 238 can be driven to rotate and open the one-way piece 239 in the oil inlet 237. At the same time, the one-way piece 239 in the oil inlet 237 can be reset under the action of the lower torsion spring, so that the oil inlet 237 is closed. 37 is in a semi-sealed state. With the continuous sliding of the oil filling piston 232, the lubricating oil can be pushed into the oil filling seat 234 through the oil filling pipe 233, and then evenly enter the sponge 236 through the multiple dispersed holes opened at the end of the hole seat 235, so as to lubricate the outer wall of the pull plate 1. When the metal cover shell 21 slides to the thicker position of the outer wall of the pull plate 1, the sponge 236 can be squeezed. Because the thicker position of the pull plate 1 is subjected to greater force, its wear is also increased. At the same time, the squeezing degree of the sponge 236 is relatively improved, and the amount of lubricating oil released is also increased, which plays a role of full lubrication, thereby achieving the effect of lubricating both sides of the pull plate 1.

[0052] In this embodiment, a cleaning assembly 24 is arranged inside the metal cover 21 below the transmission assembly 22, and the cleaning assembly 24 includes a lower extension rod 241 fixed to the bottom end of the upper extension rod 228, and two piston push rods 242 are fixed to the bottom end of the lower extension rod 241, and the ends of the two piston push rods 242 are fixed with vacuum pistons, and the arc-shaped outer wall of each vacuum piston is slidably connected to a lower sliding cylinder 243, and the lower sliding cylinder 243 is fixedly connected to the inner wall of the metal cover 21, and a pressure relief port 244 is arranged at the top of each lower sliding cylinder 243, and two air guide tubes 245 are fixed on one side of each lower sliding cylinder 243, and the other ends of the two air guide tubes 245 are fixed with two groups of air outlets 246 fixed to the inner wall of the metal cover 21.

[0053] Two brushes 248 are fixed on both sides of the inner wall of the metal cover 21, and the two brushes 248 are respectively located below the two pairs of air outlets 246. A pressure relief rotating plate 247 rotates inside the pressure relief port 244, and a reset torsion spring is fixed between the pressure relief rotating plate 247 and the pressure relief port 244.

[0054] An air outlet hole matching the air guide pipe 245 is formed on the inner wall of the lower lower cylinder 243 , and the inner diameter of the air outlet hole is larger than the inner diameter of the pressure relief port 244 .

[0055] When the car door is opened, the car door pulls the metal cover shell 21 fixedly connected to it to slide on the outside of the pull plate 1, and the pull plate 1 can rotate around the car body. In this process, the rubber spring 4 undergoes elastic deformation to squeeze the sliding block 3 close to the outer wall of the pull plate 1. The sliding of the metal cover shell 21 can drive the two brushes 248 to move and clean the dust clumps on both sides of the pull plate 1. Under the cooperation of the transmission component 22, the sliding of the fixed rod 224 can be driven. Under the connection of the lower extension rod 241, the two piston push rods 242 can be driven to slide. When the piston push rod 242 drives the air extraction piston to slide to the right, negative pressure is generated inside the lower cylinder 243 located on the left side of the lower extension rod 241, which can push the corresponding pressure relief rotating plate 247 around the pressure relief rotating plate 247 on the left side. The pressure port 244 rotates at the contact position of the inner wall, so that air can enter into the lower sliding cylinder 243 through the pressure relief port 244 and the air outlet 246. When the piston push rod 242 drives the vacuum piston to slide to the left, the pressure relief rotating plate 247 is reset under the action of the reset torsion spring, so that the air inside the lower sliding cylinder 243 can be discharged through the air outlet 246. The dust remaining after cleaning by the brush 248 can be blown away by the accelerated discharge of air to ensure the uniform application of subsequent lubricating oil. When the metal cover 21 slides to the side of the pull plate 1 close to the shock-absorbing block 12, the screws set between the car door and the metal cover 21 can be protected under the shock-absorbing effect of the shock-absorbing block 12, thereby achieving the effect of cleaning both sides of the pull plate 1.

[0056] The working principle of the device is as follows: when the car door is opened, the car door pulls the metal cover 21 fixedly connected thereto to slide on the outside of the pull plate 1, and the pull plate 1 can rotate around the contact position with the car body. During this process, the rubber spring 4 undergoes elastic deformation to squeeze the slider 3 close to the outer wall of the pull plate 1, so that the transmission gear 221 fits with the driving rack 222. Since the transmission gear 221 is meshed with the driving rack 222, the sliding of the metal cover 21 can drive the transmission gear 221 to rotate, and then drive the fixed shaft 223 fixed at its end to rotate around the contact position with the fixed rod 224. The rotation of the fixed shaft 223 can drive the fixed rotating rod 225 fixed at its end to rotate, so that the guide block 226 fixed at the other end of the fixed rotating rod 225 moves in a circular motion. The guide block 226 can slide on one side of the slide rod 227. Due to the limitation of the connecting rod, the slide rod 227 can only move along the movement direction of the upper extension rod 228. Therefore, the circular motion of the guide block 226 can drive the slide rod 227 to slide left and right, and at the same time drive the upper extension rod 228 fixed thereto to slide back and forth inside the fixed rod 224, and then drive the oil injection piston 232 fixed at the end of the upper extension rod 228 to slide back and forth inside the upper slide cylinder 231. When the oil injection piston 232 slides from the right side of the upper slide cylinder 231 to the leftmost side, a negative pressure is generated inside the upper slide cylinder 231 during this process, which can drive the one-way piece 239 inside the oil inlet 237 to rotate and open it. At the same time, the one-way piece 239 inside the oil outlet 238 39 can be blocked by the upper block, so that the left side of the oil outlet 238 is in a semi-sealed state. With the continuous sliding of the oil injection piston 232, the lubricating oil inside the oil storage tank can enter the upper sliding cylinder 231 through the oil inlet pipe. When the oil injection piston 232 slides from the leftmost position of the upper sliding cylinder 231 to the right, it can drive the one-way piece 239 inside the oil outlet 238 to rotate and open it. At the same time, the one-way piece 239 inside the oil inlet 237 can be reset under the action of the lower torsion spring, so that the upper part of the oil inlet 237 is in a semi-sealed state. With the continuous sliding of the oil injection piston 232, the lubricating oil can be pushed into the oil injection seat 234 through the oil injection pipe 233, and then evenly enter the sea through the multiple dispersed holes opened at the end of the hole seat 235. The inside of the sponge 236 can lubricate the outer wall of the pull plate 1. At the same time, when the car door is opened, the car door pulls the metal cover shell 21 fixedly connected to it to slide on the outside of the pull plate 1. At the same time, the pull plate 1 can rotate around the contact position with the car body. In this process, the rubber spring 4 undergoes elastic deformation to squeeze the slider 3 close to the outer wall of the pull plate 1. The sliding of the metal cover shell 21 can drive the two brushes 248 to move and clean the dust clumps on both sides of the pull plate 1. With the cooperation of the transmission component 22, the fixed rod 224 can be driven to slide. With the connection of the lower extension rod 241, the two piston push rods 242 can be driven to slide. When the piston push rod 242 drives the vacuum piston to slide to the right, a negative pressure is generated inside the lower cylinder 243 located on the left side of the lower extension rod 241.The corresponding pressure relief rotating plate 247 can be pushed to rotate around the contact position with the inner wall of the pressure relief port 244 on the left side, so that the air can enter the lower sliding cylinder 243 through the pressure relief port 244 and the air outlet 246. When the piston push rod 242 drives the air extraction piston to slide to the left, the pressure relief rotating plate 247 is reset under the action of the reset torsion spring, so that the air inside the lower sliding cylinder 243 can be discharged through the air outlet 246. The dust remaining after cleaning by the brush 248 can be blown away by the accelerated discharge of air to ensure the uniform application of subsequent lubricating oil. When the metal cover 21 slides to the side of the pull plate 1 close to the shock absorbing block 12, the screws set between the car door and the metal cover 21 can be protected under the shock absorbing effect of the shock absorbing block 12.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A lightweight metal shell stopper assembly for a vehicle door system, comprising a pull plate (1) and a stopper assembly (2), characterized in that: The pull plate (1) is inserted into the interior of the limit assembly (2), the limit assembly (2) comprises a metal cover (21) sleeved on the outside of the pull plate (1), a metal cover plate (202) is provided on one side of the metal cover (21), a transmission assembly (22) is provided inside the metal cover (21), a lubrication assembly (23) is provided inside the metal cover (21), and the lubrication assembly (23) is located on one side of the transmission assembly (22); The transmission assembly (22) comprises an oil storage tank arranged inside the vehicle door and a fixed rod (224) fixedly connected to the inner wall of the metal cover (21); a fixed shaft (223) is rotatably provided on the outer wall of the fixed rod (224); a transmission gear (221) is fixed to one end of the fixed shaft (223); a driving rack (222) is fixed to the side of the pull plate (1) close to the transmission gear (221); the driving rack (222) is in contact with the outer wall of the pull plate (1), and the transmission gear (221) is fixed to the one end of the fixed shaft (223); The wheel (221) is meshed with the driving rack (222); a fixed rotating rod (225) is fixed to the other end of the fixed shaft (223); a guide block (226) is fixed to one side of the fixed rotating rod (225); a sliding groove rod (227) is slidably arranged outside the guide block (226); an upper extension rod (228) is slidably arranged inside the fixed rod (224) and extends to the outside thereof; a connecting rod is fixed between the upper extension rod (228) and the sliding groove rod (227); A cleaning assembly (24) is arranged inside the metal cover (21) and below the transmission assembly (22). The cleaning assembly (24) comprises a lower extension rod (241) fixed to the bottom end of the upper extension rod (228). Two piston push rods (242) are fixed to the bottom end of the lower extension rod (241). An air extraction piston is fixed to the ends of the two piston push rods (242). A lower sliding cylinder (243) is slidably connected to the arc-shaped outer wall of each air extraction piston. The lower sliding cylinder (243) is fixedly connected to the inner wall of the metal cover (21). A pressure relief port (244) is arranged at the top of each lower sliding cylinder (243). Two air guide tubes (245) are fixed to one side of each lower sliding cylinder (243). Two groups of air outlets (246) fixed to the inner wall of the metal cover (21) are fixed at the other ends of the two air guide tubes (245). The lubrication assembly (23) comprises an upper sliding cylinder (231) fixed to the inner wall of the metal cover (21), and the upper sliding cylinder (231) is located on one side of the upper extension rod (228). An oil injection piston (232) fixed to one end of the upper extension rod (228) is slidably arranged on the inner wall of the upper sliding cylinder (231), and an oil inlet (237) extending to the inner side of the upper sliding cylinder (231) is arranged at the bottom end thereof, and an oil outlet (238) is arranged on one side of the upper sliding cylinder (231), and one end of the oil inlet (237) is connected to the interior of the upper sliding cylinder (231), and an oil delivery pipe is fixed to the other end of the oil inlet (237); The lubrication assembly (23) further comprises two sponges (236) in contact with the outer wall of the pull plate (1), and the two sponges (236) are fixedly connected to the inner wall of the metal cover (21), two hole seats (235) are fixedly connected to the tops of the two sponges (236) respectively inside the metal cover (21), the tops of the two hole seats (235) are fixed with oil filling seats (234), two oil filling pipes (233) are fixed between the two oil filling seats (234) and the oil outlet (238), the tops of the oil filling seats (234) are provided with oil inlet holes, the hole seats (235) are provided with a plurality of dispersed holes, and the plurality of dispersed holes are evenly distributed inside the hole seats (235), and each dispersed hole passes through both ends of the hole seats (235); The inner walls of the oil inlet (237) and the oil outlet (238) are both rotatably connected to the one-way piece (239); a lower stopper is provided below the one-way piece (239) located inside the oil inlet (237); the lower stopper is fixedly connected to the inner wall of the oil inlet (237); the lower stopper contacts the bottom end of the one-way piece (239); a lower torsion spring is fixed between the inner wall of the oil inlet (237) and the one-way piece (239); an upper stopper is provided on the side of the one-way piece (239) located inside the oil outlet (238) close to the oil injection piston (232); the upper stopper is fixedly connected to the inner wall of the oil outlet (238); the upper stopper contacts the outer wall of one side of the one-way piece (239); an upper torsion spring is fixed between the inner wall of the oil outlet (238) and the upper stopper; Two brushes (248) are fixed on both sides of the inner wall of the metal cover (21), and the two brushes (248) are respectively located below the two pairs of air outlets (246); a pressure relief rotating plate (247) is rotated inside the pressure relief port (244), and a return torsion spring is fixed between the pressure relief rotating plate (247) and the pressure relief port (244); The position limiting assembly (2) further comprises a metal cover plate (202) engaged with the metal cover shell (21), and a plurality of clamping parts engaged with the metal cover shell (21) are fixed at the edge of the metal cover plate (202); two sliders (3) are arranged inside the metal cover shell (21), and the two sliders (3) are symmetrically arranged about the transverse center axis of the metal cover shell (21); two rubber springs (4) are arranged between the inside of the metal cover shell (21) and the two sliders (3); the two sliders (3) are respectively engaged with the two rubber springs (4); two rivet nuts (201) are respectively fixed at both ends of the metal cover shell (21); trapezoidal seats are arranged inside the two sliders (3); the rivet nuts (201) are fixedly connected to the vehicle door by screws.

2. The metal shell lightweight stopper assembly for a vehicle door system according to claim 1, characterized in that: A guide groove is formed on one side of the slide groove rod (227) close to the guide block (226), and the guide groove matches the guide block (226).

3. The metal shell lightweight stopper assembly for a vehicle door system according to claim 1, characterized in that: A pull plate insert (101) is arranged inside the pull plate (1), a bracket (5) is arranged on the side of the pull plate (1) close to the metal cover (21), a pin shaft (51) is inserted inside the bracket (5), and the pin shaft (51) passes through both ends of the pull plate (1), and a shock absorbing block (12) is arranged inside the other end of the pull plate (1).

4. The metal shell lightweight stopper assembly for a vehicle door system according to claim 1, characterized in that: An oil inlet pipe is provided between the oil inlet (237) and the oil storage tank, and lubricating oil is provided inside the oil storage tank.

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