Double-cylinder strut type automobile shock absorber

Abstract

The utility model relates to the technical field of automobile shock absorbers, in particular to a double-cylinder strut type automobile shock absorber, which is characterized in that a driving ring is arranged at the top of a shock absorber main body, a bottom ring is arranged above the shock absorber main body, and a shock absorbing spring penetrated by a piston rod is arranged between the bottom ring and the top ring; the two ends of the damping spring make contact with the top ring and the bottom ring correspondingly, the damper body penetrates through the driving ring and is in threaded connection with the damper body, a positioning ring located at the lower end of the bottom ring is arranged at the upper end of the driving ring, the positioning ring is rotationally connected with the bottom ring, and the position of the screw in the piston rod is adjusted by rotating the butt joint plate. And the length of the piston rod is adjusted, so that the double-cylinder strut type automobile shock absorber can adapt to automobiles with different heights. Compared with a traditional shock absorber with a piston rod fixed in length, the application range of the shock absorber is greatly widened, and the requirements of more vehicle types are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile shock absorber, concretely to a double cylinder strut type automobile shock absorber. BACKGROUND

[0002] The double cylinder strut type automobile shock absorber is a key component in the automobile shock absorbing system, and realizes the shock absorbing function through a series of ingenious designs, and improves the automobile driving performance.

[0003] The existing double cylinder strut type automobile shock absorber is inconvenient to be applied to automobiles of different heights due to the fixed length of the piston rod, and has low applicability. UTILITY MODEL CONTENTS

[0004] In view of the defects of the prior art, the utility model provides a double cylinder strut type automobile shock absorber.

[0005] To achieve the above object, the utility model provides the following technical scheme: a double cylinder strut type automobile shock absorber, including shock absorber main part and piston rod, the piston rod is inserted into the inside of shock absorber main part, the top of piston rod is equipped with butt joint board, the lower extreme of butt joint board is equipped with screw rod inserted into the inside of piston rod, and screw rod is screwed with piston rod, and the top of piston rod is fixedly provided with top ring.

[0006] The top of shock absorber main part is equipped with driving ring, the upper side of shock absorber main part is equipped with bottom ring, the shock absorbing spring is arranged between bottom ring and top ring and is penetrated by piston rod, and the two ends of shock absorbing spring contact top ring and bottom ring respectively, the driving ring is penetrated by shock absorber main part and is screwed with shock absorber main part, the upper end of driving ring is equipped with positioning ring located at the lower extreme of bottom ring, and the positioning ring is rotatably connected with bottom ring.

[0007] In order to improve the stability of butt joint board in use, the utility model improves that a plurality of first side blocks are symmetrically arranged on the circumferential side of butt joint board and top ring, and the two first side blocks symmetrically arranged upwards and downwards are butted by first bolt.

[0008] In order to improve the stability of driving ring in use, the utility model improves that a plurality of second side blocks are symmetrically arranged on the outer wall of shock absorber main part and the outer wall of driving ring, and the two second side blocks symmetrically arranged upwards and downwards are butted by second bolt.

[0009] In order to improve the stability of positioning ring in use, the utility model improves that the positioning ring is fixed on the upper end of driving ring through a plurality of supporting rods, the lower extreme of bottom ring is equipped with annular groove, and the upper end of positioning ring is equipped with annular protruding block rotatably connected with annular groove.

[0010] Further, the improvement of the utility model has, the first side block and the butt joint plate and the top ring are integrated structure, the second side block and the drive ring are integrated structure.

[0011] Compared with the prior art, the utility model provides a double cylinder strut type automobile shock absorber, has the following beneficial effects:

[0012] Improve applicability: the position of the screw rod in the piston rod is adjusted by rotating the butt joint plate, and then the length of the piston rod is adjusted, so that the double cylinder strut type automobile shock absorber can adapt to automobiles of different heights. Compared with the traditional shock absorber with fixed piston rod length, the application range of the product is greatly improved, and the needs of more vehicle models are met.

[0013] Enhance practicality: the position of the bottom ring can be adjusted by rotating the drive ring, and then the compression degree of the shock absorbing spring is changed, so that the shock absorbing force of the shock absorbing spring is adjusted. This makes the automobile run in different road conditions, and the shock absorbing force can be flexibly adjusted according to the actual demand, improves the comfort and stability of automobile running, and enhances the practicality of the product. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the first perspective three-dimensional structure schematic view of the utility model;

[0015] Figure 2 It is the second perspective three-dimensional structure schematic view of the utility model;

[0016] Figure 3 It is the third perspective three-dimensional structure schematic view of the utility model;

[0017] Figure 4 It is the structure schematic view of the annular groove in the utility model;

[0018] In the drawing: 1, shock absorber main part; 2, piston rod; 3, butt joint plate; 4, screw rod; 5, first side block; 6, first bolt; 7, bottom ring; 8, shock absorbing spring; 9, positioning ring; 10, annular groove; 11, support rod; 12, drive ring; 13, second side block; 14, second bolt; 15, top ring. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, apparently, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the utility model.

[0020] Please refer to Figures 1-4The utility model discloses a double cylinder support post type automobile shock absorber, including shock absorber main part 1 and piston rod 2, the piston rod 2 is inserted to the inside of shock absorber main part 1, the top of piston rod 2 is equipped with butt joint board 3, the lower extreme of butt joint board 3 is equipped with the screw rod 4 of inserting to the inside of piston rod 2, just the screw rod 4 is connected with piston rod 2 thread, the top of piston rod 2 is fixedly arranged top ring 15,

[0021] The top of shock absorber main part 1 is equipped with drive ring 12, the top of shock absorber main part 1 is equipped with bottom ring 7, be equipped with shock absorber spring 8 that piston rod 2 is penetrated between bottom ring 7 and top ring 15, just the both ends of shock absorber spring 8 respectively contact top ring 15 and bottom ring 7, drive ring 12 is penetrated with shock absorber main part 1 and is connected with shock absorber main part 1 thread, the upper end of drive ring 12 is equipped with the positioning ring 9 of being located bottom ring 7 lower extreme, just the positioning ring 9 is connected with bottom ring 7 rotation.

[0022] In the embodiment, the first side block 5, the butt joint plate 3 and the top ring 15 are integrated structures, and the second side block 13 and the drive ring 12 are integrated structures.

[0023] The length adjustment principle of the piston rod 2 is as follows: in the double cylinder support post type automobile shock absorber, the piston rod 2 top end is provided with the butt joint plate 3, the screw rod 4 at the lower end of the butt joint plate 3 is threadedly connected with the piston rod 2. When the butt joint plate 3 is rotated, due to the transmission effect of the thread, the screw rod 4 will extend or retract in the piston rod 2. Because the butt joint plate 3 is connected with the piston rod 2 through the screw rod 4, the extension and retraction of the screw rod 4 directly leads to the change of the height of the butt joint plate 3, thereby indirectly adjusting the overall length of the piston rod 2.

[0024] The shock absorber spring 8 damping force adjustment principle is as follows: the top of the shock absorber main part 1 is provided with the drive ring 12, and the drive ring 12 is threadedly connected with the shock absorber main part 1. Above the shock absorber main part 1, the shock absorber spring 8 is installed between the bottom ring 7 and the top ring 15, and the ends of the shock absorber spring 8 are in contact with the top ring 15 and the bottom ring 7, respectively. When the drive ring 12 is rotated, due to the thread cooperation between the drive ring 12 and the shock absorber main part 1, the drive ring 12 will move up and down along the axial direction of the shock absorber main part 1. Because the drive ring 12 is fixed with the positioning ring 9 through the support rod 11 at the upper end, and the positioning ring 9 is rotationally connected with the bottom ring 7, the up and down movement of the drive ring 12 will drive the bottom ring 7 to rise or fall together. The position change of the bottom ring 7 will change the distance between the two ends of the shock absorber spring 8, thereby adjusting the compression degree of the shock absorber spring 8, and realizing the adjustment of the damping force at the position of the shock absorber spring 8.

[0025] In the embodiment, a plurality of first side blocks 5 are symmetrically arranged on the circumferential side of the butt joint plate 3 and the top ring 15, and the two first side blocks 5 symmetrically arranged upward and downward are butted through the first bolt 6.

[0026] The stability guarantee principle of the structure: the stability of the butt plate 3: the butt plate 3 and the top ring 15 are symmetrically provided with a plurality of first side blocks 5, and the two first side blocks 5 symmetrically arranged upward and downward are butted by the first bolt 6. Such a structure design, when the butt plate 3 bears various forces from the automobile, the first side blocks 5 are tightly connected by the first bolt 6 between them, which can disperse and transmit these forces, thereby improving the stability of the butt plate 3 in use.

[0027] In this embodiment, a plurality of second side blocks 13 are symmetrically arranged on the outer wall of the shock absorber body 1 and the outer wall of the driving ring 12, and the two second side blocks 13 symmetrically arranged upward and downward are butted by the second bolt 14.

[0028] The stability of the driving ring 12: a plurality of second side blocks 13 are symmetrically arranged on the outer wall of the shock absorber body 1 and the outer wall of the driving ring 12, and the two second side blocks 13 symmetrically arranged upward and downward are butted by the second bolt 14. Similarly, when the driving ring 12 is rotating or subjected to forces from the shock absorber body 1 and other components, the connection between the second side blocks 13 by the second bolt 14 can enhance the structural strength of the driving ring 12, making it more stable in operation.

[0029] In this embodiment, the positioning ring 9 is fixed to the upper end of the driving ring 12 by a plurality of supporting rods 11, the lower end of the bottom ring 7 is provided with an annular groove 10, and the upper end of the positioning ring 9 is provided with an annular protrusion rotatably connected with the annular groove 10.

[0030] The stability of the positioning ring 9: the positioning ring 9 is fixed to the upper end of the driving ring 12 by a plurality of supporting rods 11, and the lower end of the bottom ring 7 is provided with an annular groove 10, and the upper end of the positioning ring 9 is provided with an annular protrusion rotatably connected with the annular groove 10. The supporting rods 11 support the positioning ring 9, so that the positioning ring 9 and the driving ring 12 maintain a stable connection relationship. The rotatable connection of the annular protrusion and the annular groove 10, on the one hand, ensures that the bottom ring 7 can rotate smoothly when moving up and down with the driving ring 12, and on the other hand, also limits the horizontal displacement of the bottom ring 7 to a certain extent, thereby improving the stability of the positioning ring 9 in use and ensuring the stable operation of the entire shock absorption system.

[0031] In the description in this document, it should be noted that the relationship terms such as first and second 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 the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0032] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the present application.

Claims

1. A twin-tube strut-type automobile shock absorber comprising a shock absorber main body (1) and a piston rod (2) inserted into the inside of the shock absorber main body (1), characterized by: The top end of the piston rod (2) is provided with a butt joint plate (3), the lower end of the butt joint plate (3) is provided with a screw rod (4) inserted into the piston rod (2), and the screw rod (4) is screwed with the piston rod (2), and the top of the piston rod (2) is fixedly provided with a top ring (15); The top of the shock absorber body (1) is provided with a driving ring (12), the upper side of the shock absorber body (1) is provided with a bottom ring (7), the bottom ring (7) and the top ring (15) are provided with a shock absorbing spring (8) penetrated by the piston rod (2), and the two ends of the shock absorbing spring (8) are in contact with the top ring (15) and the bottom ring (7) respectively, the driving ring (12) is penetrated by the shock absorber body (1) and is screwed with the shock absorber body (1), the upper end of the driving ring (12) is provided with a positioning ring (9) located at the lower end of the bottom ring (7), and the positioning ring (9) is rotatably connected with the bottom ring (7).

2. A twin-tube strut-type automotive shock absorber according to claim 1, characterized by: The butt joint plate (3) and the top ring (15) are provided with a plurality of first side blocks (5) on the circumferential side, and the two first side blocks (5) symmetrically arranged upward and downward are butted by the first bolt (6).

3. A twin-tube strut-type automotive shock absorber according to claim 2, characterized by: The outer wall of the shock absorber body (1) and the outer wall of the driving ring (12) are symmetrically provided with a plurality of second side blocks (13), and the two second side blocks (13) symmetrically arranged upward and downward are butted by the second bolt (14).

4. A twin-tube strut-type automotive shock absorber according to claim 3, characterized by: The positioning ring (9) is fixed on the upper end of the driving ring (12) through a plurality of supporting rods (11).

5. A twin-tube strut-type automotive shock absorber according to claim 4, characterized by: The lower end of the bottom ring (7) is provided with an annular groove (10), and the upper end of the positioning ring (9) is provided with an annular protrusion rotatably connected with the annular groove (10).

6. A twin-tube strut-type automotive shock absorber according to claim 5, characterized by: The first side block (5), the butt joint plate (3) and the top ring (15) are an integrated structure, and the second side block (13) and the driving ring (12) are an integrated structure.

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