Automobile trailer shock absorber

Abstract

The utility model discloses an automobile pull shock absorber, which belongs to the field of automobile pull shock absorption and comprises a first shock absorption component and a second shock absorption component, the first shock absorption component comprises two mounting plates, an annular air bag is connected between the two mounting plates, and two ends of the annular air bag are fixedly connected with reinforcing plates. A plurality of exhaust holes are formed in the side surface of the annular air bag, a plurality of reinforcing ribs are embedded in the annular air bag, a plurality of lug blocks are fixedly connected to the side surfaces of the two mounting plates, limiting holes are formed in the surfaces of the lug blocks, and reinforcing rods are inserted into the limiting holes; according to the shock absorber, multiple shock absorption effects can be achieved through the first shock absorption assembly and the second shock absorption assembly, the shock absorption performance of the shock absorber is remarkably improved, the practicability of the shock absorber is improved, meanwhile, the compression resistance and deformation resistance strength of the shock absorber can be remarkably improved through mutual cooperation of the structures, and the service life of the shock absorber is prolonged. And the service life of the shock absorber can be prolonged.

Description

Technical Field

[0001] The utility model relates to the field of automobile trailer shock absorption, in particular to an automobile trailer shock absorber. Background Art

[0002] When towing a car, a towing tractor is needed to perform the towing operation. During the towing process, the complex road environment may cause damage to the towed vehicle, so a shock absorber structure is needed. The existing shock absorber structure is simple, so the shock absorption effect is not significant enough. Based on this, it is necessary to provide a shock absorber that can significantly improve the shock absorption performance and enhance the practicality. In addition, the strength of the existing shock absorber is relatively low, so frequent use may cause damage to itself. Based on this, it is necessary to provide a shock absorber that can enhance its own strength and extend its service life. Utility Model Content

[0003] The embodiment of the utility model provides a car trailer shock absorber, which aims to solve the problem that the shock absorption effect of the existing shock absorber is not significant enough and the compressive strength of the shock absorber itself needs to be improved.

[0004] To achieve the above-mentioned purpose, the utility model provides a car trailer shock absorber, comprising a first shock absorbing assembly and a second shock absorbing assembly;

[0005] Wherein, the first shock absorbing assembly comprises two mounting plates, an annular airbag is connected between the two mounting plates, reinforcing plates are fixedly connected to both ends of the annular airbag, a plurality of exhaust holes are provided on the side surface of the annular airbag, a plurality of reinforcing ribs are embedded inside the annular airbag, a plurality of ear blocks are fixedly connected to the side surfaces of the two mounting plates, limiting holes are provided on the surfaces of the plurality of ear blocks, reinforcing rods are inserted inside the limiting holes, and a plurality of buffer springs and buffer blocks are respectively installed between the opposite surfaces of the two mounting plates and the annular airbag;

[0006] The second shock-absorbing assembly includes a liquid storage cylinder installed in an annular ring in the middle of the annular airbag, a damping rod is inserted into the interior of the liquid storage cylinder, an air intake chamber is provided on the inner wall of the liquid storage cylinder, a piston is fixedly connected to the lower end of the damping rod, two liquid inlet holes are provided on the surface of the piston, and shock-absorbing springs are provided on the side surfaces of the liquid storage cylinder and the damping rod.

[0007] As a preferred solution of the utility model, both ends of several of the buffer springs and buffer blocks are fixedly connected with first bolts, and the surfaces of the two mounting plates are provided with several first screw holes, and the first bolts are threadedly connected to the inside of the first screw holes.

[0008] As a preferred solution of the utility model, second screw holes are provided on the surfaces of the two mounting plates, and connecting plates are fixedly connected to both ends of the reinforcing rod.

[0009] As a preferred solution of the utility model, a limiting groove is provided on the surface of the reinforcing plate, and the liquid storage cylinder, the damping rod and the shock absorbing spring are all installed inside the limiting groove.

[0010] As a preferred solution of the utility model, a plurality of guide bars are fixedly connected to the inner wall of the limiting hole, a plurality of guide grooves are opened on the side surface of the reinforcing rod, and the guide bars are slidably connected inside the guide grooves.

[0011] As a preferred solution of the utility model, the side surface of the annular airbag is connected with a valve core.

[0012] As a preferred solution of the utility model, a sealing cover is sleeved on the upper end of the liquid storage cylinder, and connecting rings are fixedly connected to both ends of the shock absorbing spring.

[0013] As a preferred solution of the utility model, one end of the liquid storage cylinder and the damping rod are fixedly connected with a mounting plate, the connecting ring is connected to the mounting plate, the surface of the mounting plate is fixedly connected with a second bolt, and the second bolt is threadedly connected to the inside of the second screw hole.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. When the tractor cooperates with the tractor to tow the car, the tractor and the shock absorber are first connected through the connecting plate. At this time, the annular airbag is inflated through the valve core. When the tractor is pulled, the annular airbag is compressed and the internal gas is discharged through the exhaust hole to achieve the initial shock absorption. At the same time, the mounting plate is compressed by force to compress the reinforcing plate. At this time, a number of buffer springs and buffer blocks can assist in achieving the shock absorption and buffering effect. At the same time, the mounting plate is compressed by force to compress the damping rod. The damping rod descends with the piston rod in the liquid storage cylinder to compress the hydraulic oil and air. The hydraulic oil is discharged from the liquid inlet hole, and the air is discharged into the air intake chamber. The shock absorbing spring can further achieve the shock absorption effect. Compared with the single-structure shock absorber in the prior art, the utility model can achieve multiple buffering and shock absorption effects through the cooperation of the above structures, thereby enhancing the practicality of the shock absorber.

[0016] 2. When the shock absorber is subjected to force, several reinforcing ribs embedded inside the annular airbag can enhance its own strength and compressive strength and avoid plastic deformation. At the same time, the presence of the reinforcing plate can further improve its overall compressive resistance. Finally, the mounting plate compresses the reinforcing plate so that the guide groove moves along the guide groove. At the same time, the reinforcing rod rises and falls along the limiting hole. The annular airbag shrinks under force, causing its diameter to increase. The presence of the reinforcing rod can further play a limiting effect and enhance its own strength. Compared with the shock absorber in the prior art, the utility model can significantly enhance the self-strength of the shock absorber through the cooperation of the above-mentioned structures, thereby extending the service life of the shock absorber. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a disassembled diagram of the first shock absorbing component structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the annular airbag of the utility model;

[0020] Figure 4 This is a cross-sectional view of the annular airbag structure of the utility model;

[0021] Figure 5 This is a cross-sectional view of the structure of the second shock absorbing component of the utility model.

[0022] In the figure: 100, first shock absorbing assembly; 101, mounting plate; 102, annular airbag; 103, reinforcing plate; 104, exhaust hole; 105, reinforcing rib; 106, ear block; 107, limiting hole; 108, reinforcing rod; 109, buffer spring; 110, buffer block; 111, first bolt; 112, first screw hole; 121, second screw hole; 122, connecting plate; 131, limiting groove; 141, guide strip; 142, guide groove; 151, valve core; 200, second shock absorbing assembly; 201, liquid storage cylinder; 202, damping rod; 203, air intake chamber; 204, piston; 205, liquid inlet hole; 206, shock absorbing spring; 211, sealing cover; 212, connecting ring; 221, mounting plate; 222, second bolt. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-5 , the utility model provides a car trailer shock absorber, comprising a first shock absorbing assembly 100 and a second shock absorbing assembly 200;

[0025] The first shock absorbing assembly 100 includes two mounting plates 101, an annular airbag 102 is connected between the two mounting plates 101, both ends of the annular airbag 102 are fixedly connected with a reinforcing plate 103, a side surface of the annular airbag 102 is provided with a plurality of exhaust holes 104, a plurality of reinforcing ribs 105 are embedded inside the annular airbag 102, a plurality of ear blocks 106 are fixedly connected with the side surfaces of the two mounting plates 101, a plurality of limiting holes 107 are provided on the surfaces of the plurality of ear blocks 106, a reinforcing rod 108 is inserted inside the limiting hole 107, and a plurality of buffer springs 109 and buffer blocks 110 are respectively installed between the opposite surfaces of the two mounting plates 101 and the annular airbag 102;

[0026] The second shock absorbing assembly 200 includes a liquid storage cylinder 201 installed in the annular ring in the middle of the annular airbag 102, a damping rod 202 is inserted into the interior of the liquid storage cylinder 201, an air intake chamber 203 is provided on the inner wall of the liquid storage cylinder 201, a piston 204 is fixedly connected to the lower end of the damping rod 202, two liquid inlet holes 205 are provided on the surface of the piston 204, and a shock absorbing spring 206 is provided on the side surface of the liquid storage cylinder 201 and the damping rod 202.

[0027] In a specific embodiment, the first shock absorbing assembly 100 and the second shock absorbing assembly 200 are provided, which can not only play a multiple shock absorbing effect, thereby significantly enhancing the shock absorbing performance of the shock absorber, and thus enhancing the practicality of the shock absorber, but also can significantly enhance the self-compression and deformation resistance of the shock absorber through the cooperation of the above structures, thereby extending the service life of the shock absorber. When in use, the shock absorber and the tractor are first connected. When the tractor generates vibration to compress the mounting plate 101 of the shock absorber, the mounting plate 101 is subjected to force to compress the annular airbag 102, the buffer spring 109, the buffer block 110, the damping rod 202 and the shock absorbing spring 206 respectively. At this time, the annular airbag 102 is inflated through the valve core 151. At this time, the annular airbag 102 is compressed so that the air is discharged from the exhaust hole 104, thereby It has a preliminary shock-absorbing effect. At the same time, several reinforcing ribs 105 can enhance the compressive strength of the annular airbag 102. In addition, several buffer springs 109 and several buffer blocks 110 are pressed downward by force, thereby assisting in the buffering effect. The damping rod 202 is forced to carry the piston 204 down along the liquid reservoir 201, and the hydraulic oil in the liquid reservoir 201 is discharged through the liquid inlet hole 205, and the air is discharged into the air intake chamber 203. Then, in conjunction with the shock-absorbing spring 206, the shock-absorbing effect of the shock absorber can be significantly enhanced. In addition, the ear block 106 descends along the reinforcing rod 108, and the annular airbag 102 is compressed by force, resulting in an increase in diameter. The existence of the reinforcing rod 108 can further enhance its own strength and limit the annular airbag 102, thereby extending the service life and shock-absorbing effect of the shock absorber.

[0028] See also Figure 2-Figure 4Both ends of the buffer springs 109 and the buffer blocks 110 are fixedly connected with first bolts 111 , and the surfaces of the two mounting plates 101 are provided with a plurality of first screw holes 112 , and the first bolts 111 are threadedly connected inside the first screw holes 112 .

[0029] In a specific embodiment, the first bolt 111 is threadedly connected inside the first screw hole 112 to enhance the connection strength between the buffer spring 109 and the buffer block 110 and the mounting plate 101 and the reinforcing plate 103, while facilitating disassembly as needed.

[0030] See also Figure 2-Figure 4 The surfaces of the two mounting plates 101 are both provided with second screw holes 121 , and both ends of the reinforcing rod 108 are fixedly connected with connecting plates 122 .

[0031] In a specific embodiment, the connecting plate 122 facilitates the connection between the shock absorber and the tractor.

[0032] See also Figure 2-Figure 4 A limiting groove 131 is provided on the surface of the reinforcing plate 103 , and the liquid storage cylinder 201 , the damping rod 202 and the shock absorbing spring 206 are all installed inside the limiting groove 131 .

[0033] In a specific embodiment, the limiting groove 131 facilitates the installation and limiting of the liquid storage cylinder 201 , thereby improving the limiting effect of the second shock absorbing assembly 200 .

[0034] See also Figure 2-Figure 4 A plurality of guide bars 141 are fixedly connected to the inner wall of the limiting hole 107 , a plurality of guide grooves 142 are opened on the side surface of the reinforcing rod 108 , and the guide bars 141 are slidably connected inside the guide grooves 142 .

[0035] In a specific embodiment, the guide bar 141 rises and falls along the guide groove 142, so as to improve the stability of the annular airbag 102 when it contracts, and further improve the shock absorbing effect of the shock absorber.

[0036] See also Figure 2-Figure 4 A valve core 151 is connected to the side surface of the annular airbag 102 .

[0037] In a specific embodiment, the presence of the valve core 151 facilitates the inflation operation of the annular airbag 102 .

[0038] See also Figure 5 A sealing cover 211 is sleeved on the upper end of the liquid storage cylinder 201 , and connecting rings 212 are fixedly connected to both ends of the shock absorbing spring 206 .

[0039] In a specific embodiment, the sealing cover 211 is used to improve the sealing performance of the liquid storage cylinder 201 , and the connecting ring 212 is used to enhance the connection strength between the shock absorbing spring 206 and the damping rod 202 as well as the liquid storage cylinder 201 .

[0040] See also Figure 5 One end of the liquid storage cylinder 201 and the damping rod 202 are fixedly connected with a mounting plate 221, the connecting ring 212 is connected to the mounting plate 221, and the surface of the mounting plate 221 is fixedly connected with a second bolt 222, and the second bolt 222 is threadedly connected to the inside of the second screw hole 121.

[0041] In a specific embodiment, the mounting plate 221 is convenient for connection with the mounting plate 101, and the second bolt 222 is threadedly connected inside the second screw hole 121 to further enhance the connection strength between the second shock absorbing assembly 200 and the mounting plate 101, while facilitating disassembly as needed.

[0042] Working principle: When in use, first connect the shock absorber and the tractor. When the tractor generates vibration to compress the mounting plate 101 of the shock absorber, the mounting plate 101 is subjected to force to compress the annular airbag 102, the buffer spring 109, the buffer block 110, the damping rod 202 and the shock absorbing spring 206. At the same time, the annular airbag 102 is inflated through the valve core 151. The annular airbag 102 is compressed so that the air is discharged from the exhaust hole 104 to achieve a preliminary shock absorbing effect. At the same time, the plurality of reinforcing ribs 105 can enhance the compressive strength of the annular airbag 102. At the same time, the plurality of buffer springs 109 and the plurality of buffer blocks 110 can also enhance the compressive strength of the annular airbag 102. 0 is pressed downwardly to assist in buffering, and the damping rod 202 is forced to move the piston 204 downward along the liquid reservoir 201, and the hydraulic oil in the liquid reservoir 201 is discharged through the liquid inlet hole 205, while the air is discharged into the air inlet chamber 203. Subsequently, the shock absorbing effect of the shock absorber can be significantly enhanced in cooperation with the shock absorbing spring 206. At the same time, the ear block 106 descends along the reinforcing rod 108, causing the annular airbag 102 to be compressed and its diameter to increase. At the same time, the existence of the reinforcing rod 108 can further enhance its own strength and limit the annular airbag 102, thereby extending the service life of the shock absorber.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automobile trailer shock absorber, characterized in that: include: A first shock absorbing component (100), the first shock absorbing component (100) comprising two mounting plates (101), an annular airbag (102) being connected between the two mounting plates (101), reinforcing plates (103) being fixedly connected at both ends of the annular airbag (102), a plurality of exhaust holes (104) being provided on the side surface of the annular airbag (102), a plurality of reinforcing ribs (105) being embedded inside the annular airbag (102), a plurality of ear blocks (106) being fixedly connected to the side surfaces of the two mounting plates (101), a plurality of limiting holes (107) being provided on the surfaces of the plurality of ear blocks (106), a reinforcing rod (108) being inserted inside the limiting holes (107), and a plurality of buffer springs (109) and buffer blocks (110) being respectively installed between the opposite surfaces of the two mounting plates (101) and the annular airbag (102); A second shock absorbing assembly (200), the second shock absorbing assembly (200) comprising a liquid storage cylinder (201) installed in an annular ring in the middle of the annular airbag (102), a damping rod (202) being inserted into the interior of the liquid storage cylinder (201), an air inlet chamber (203) being provided on the inner wall of the liquid storage cylinder (201), a piston (204) being fixedly connected to the lower end of the damping rod (202), two liquid inlet holes (205) being provided on the surface of the piston (204), and shock absorbing springs (206) being sleeved on the side surfaces of the liquid storage cylinder (201) and the damping rod (202).

2. The automobile trailer shock absorber according to claim 1, characterized in that: Both ends of the plurality of buffer springs (109) and buffer blocks (110) are fixedly connected with first bolts (111), and surfaces of the two mounting plates (101) are provided with a plurality of first screw holes (112), and the first bolts (111) are threadedly connected inside the first screw holes (112).

3. The automobile trailer shock absorber according to claim 1, characterized in that: Second screw holes (121) are provided on the surfaces of the two mounting plates (101), and connecting plates (122) are fixedly connected to both ends of the reinforcing rod (108).

4. The automobile trailer shock absorber according to claim 1, characterized in that: A limiting groove (131) is provided on the surface of the reinforcing plate (103), and the liquid storage cylinder (201), the damping rod (202) and the shock absorbing spring (206) are all installed inside the limiting groove (131).

5. The automobile trailer shock absorber according to claim 1, characterized in that: A plurality of guide bars (141) are fixedly connected to the inner wall of the limiting hole (107), a plurality of guide grooves (142) are formed on the side surface of the reinforcing rod (108), and the guide bars (141) are slidably connected inside the guide grooves (142).

6. The automobile trailer shock absorber according to claim 1, characterized in that: The side surface of the annular airbag (102) is connected to a valve core (151).

7. The automobile trailer shock absorber according to claim 1, characterized in that: The upper end of the liquid storage cylinder (201) is sleeved with a sealing cover (211), and both ends of the shock absorbing spring (206) are fixedly connected with connecting rings (212).

8. The automobile trailer shock absorber according to claim 7, characterized in that: One end of the liquid storage cylinder (201) and the damping rod (202) are both fixedly connected to a mounting plate (221), the connecting ring (212) and the mounting plate (221) are connected, a second bolt (222) is fixedly connected to the surface of the mounting plate (221), and the second bolt (222) is threadedly connected to the inside of the second screw hole (121).

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