High-strength combined piston of shock absorber

Abstract

The utility model relates to the technical field of shock absorber pistons, and discloses a high-strength shock absorber combined piston which comprises a supporting ring, the upper surface of the supporting ring is fixedly connected with a first cylinder, the upper surface of the first cylinder is fixedly connected with a lower limiting ring, and the upper surface of the lower limiting ring is fixedly connected with a second cylinder. An upper limiting ring is fixedly connected to the upper surface of the second cylinder, a separation ring is fixedly connected to the surface of the second cylinder, and elastic piston rings are arranged on the upper side and the lower side of the separation ring, the bottom of the upper limiting ring and the upper surface of the lower limiting ring. Through cooperation of the supporting ring, the first cylinder, the lower limiting ring, the second cylinder, the upper limiting ring, the separation ring, the elastic piston ring, the strip-shaped hole, the pressing support, the piston rod and the strip-shaped plate, a user can change the size of the contact face between the combined piston and the cylinder body by rotating the adjusting nut, and the adjusting bolt is located outside the cylinder body, so that the size of the combined piston is adjusted. Therefore, the combined piston is more convenient to adjust.

Description

Technical Field

[0001] The utility model relates to the technical field of shock absorber pistons, in particular to a high-strength shock absorber combined piston. Background Art

[0002] Shock absorbers are used to suppress the shock when the spring rebounds after shock absorption and the impact from the road surface. They are widely used in automobiles to accelerate the attenuation of the vibration of the frame and body to improve the driving smoothness of the car. When passing through uneven roads, although the shock-absorbing spring can filter the vibration of the road, the spring itself will still have reciprocating motion, and the shock absorber is used to suppress this spring jump. High-strength shock absorbers are shock absorbers made of high-strength materials. At present, most of the combined pistons used in high-strength shock absorbers on the market change the size of the contact surface between the combined piston and the cylinder body by changing the number of piston plates, and change the shock absorption effect of the shock absorber. For example, a piston assembly of an automobile shock absorber disclosed in Chinese patent announcement number CN217463028U, but when the user adjusts the size of the contact surface between the piston and the cylinder body, the number of piston plates can be changed after the piston is removed from the cylinder body, which makes the size of the contact surface between the piston and the cylinder body more troublesome to adjust. Utility Model Content

[0003] The purpose of the utility model is to solve the shortcomings existing in the prior art, such as: at present, most of the combined pistons used in high-strength shock absorbers on the market change the size of the contact surface between the combined piston and the cylinder body by changing the number of piston plates, and thus changing the shock-absorbing effect of the shock absorber. However, when the user adjusts the size of the contact surface between the piston and the cylinder body, it is necessary to remove the piston from the cylinder body before changing the number of piston plates, which makes it more troublesome to adjust the size of the contact surface between the piston and the cylinder body. Therefore, a high-strength shock absorber combined piston is proposed.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A high-strength shock absorber combination piston comprises a support ring, the upper surface of the support ring is fixedly connected to a first cylinder, the upper surface of the first cylinder is fixedly connected to a lower limit ring, the upper surface of the lower limit ring is fixedly connected to a second cylinder, the upper surface of the second cylinder is fixedly connected to an upper limit ring, the surface of the second cylinder is fixedly connected to a separator ring, the upper and lower sides of the separator ring, the bottom of the upper limit ring and the upper surface of the lower limit ring are all provided with elastic piston rings, a strip hole is opened inside the elastic piston ring, the inner wall of the strip hole contacts with the surface of the second cylinder, the inner wall of the upper limit ring, the inner wall of the separator ring and the surface of the elastic piston ring are all fitted with a pressing bracket, the inner wall of the pressing bracket is threadedly connected to a piston rod, and the bottom of the piston rod and the left and right sides of the inner wall of the support ring are all fixedly connected with strip plates.

[0006] Preferably, the pressing bracket includes a cylinder, the inner wall of the cylinder is in contact with the surface of the piston rod, the surface of the cylinder is fixedly connected to a bearing, the surface of the bearing is fixedly connected to a connecting frame, the upper surface of the connecting frame is fixedly connected to an adjusting nut, the inner wall of the adjusting nut is threadedly connected to the surface of the piston rod, the surface of the cylinder is fixedly connected to a circular block, the inner wall of the upper limit ring, the inner wall of the separating ring and the surface of the elastic piston ring are all in contact with the surface of the circular block, and the bottom of the circular block and the surface of the cylinder are fixedly connected to a conical block.

[0007] Preferably, the length of the strip-shaped hole is equal to the diameter of the second cylinder.

[0008] Preferably, positioning grooves are provided on both sides of the piston rod, and grooves are provided on both sides of the adjusting nut. The inner wall of the groove is fixedly connected with a U-shaped spring piece, and the side of the U-shaped spring piece away from the piston rod is fixedly connected with a positioning column, and the inner wall of the positioning groove and the inner wall of the groove are in contact with the surface of the positioning column.

[0009] Preferably, the elastic force of the U-shaped spring piece is greater than the gravity of the positioning column.

[0010] Preferably, the top diameter of the conical block is equal to the diameter of the circular block, and the bottom diameter of the conical block is smaller than the diameter of the circular block.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] (1) The utility model is provided with a support ring, a first cylinder, a lower limit ring, a second cylinder, an upper limit ring, a separator ring, an elastic piston ring, a strip hole, a pressing bracket, a piston rod and a strip plate, wherein when a user rotates an adjusting nut on the pressing bracket, the distance between the circular block and the strip plate can be changed by the cooperation of the adjusting nut and the piston rod. At the same time, when the circular block contacts the elastic piston ring, the elastic piston ring is stretched open by the circular block and contacts the inner wall of the cylinder body. When the circular block is separated from the elastic piston ring, the elastic piston ring can be separated from the cylinder body by the elasticity of the elastic piston ring itself. Furthermore, by the cooperation of the support ring, the first cylinder, the lower limit ring, the second cylinder, the upper limit ring, the separator ring, the elastic piston ring, the strip hole, the pressing bracket, the piston rod and the strip plate, the user can change the size of the contact surface between the combined piston and the cylinder body by rotating the adjusting nut. In addition, the adjusting bolt is located outside the cylinder body, so that the combined piston is more convenient to adjust.

[0013] (2) The utility model provides a positioning groove, a groove, a U-shaped spring sheet and a positioning column. When the positioning groove is aligned with the groove, the positioning column is inserted into the positioning groove by the elastic force of the U-shaped spring sheet. The positioning groove, the positioning column and the groove cooperate to prevent the adjusting nut from rotating. As a result, the adjusting nut will not rotate due to vibration during use of the combined piston, so that the size of the contact surface between the combined piston and the cylinder body is not easily changed by vibration. At the same time, the user can separate the positioning column from the positioning groove while clamping the adjusting nut with a tool, thereby making it more convenient for the user to rotate the adjusting nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a front view of the structure of the utility model;

[0016] Figure 3 It is a top view of the support ring in the utility model;

[0017] Figure 4 It is a top view of the separation ring in the utility model;

[0018] Figure 5 It is a top view of the elastic piston ring in the utility model;

[0019] Figure 6 It is a front view of the pressing bracket in the utility model.

[0020] In the figure: 1. support ring; 2. first cylinder; 3. lower limit ring; 4. second cylinder; 5. upper limit ring; 6. separator ring; 7. elastic piston ring; 8. strip hole; 9. pressing bracket; 91. cylinder; 92. bearing; 93. connecting frame; 94. adjusting nut; 95. round block; 96. conical block; 10. piston rod; 11. strip plate; 12. positioning groove; 13. groove; 14. U-shaped spring piece; 15. positioning column. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0023] Embodiment 1:

[0024] Reference Figure 1-6 The high-strength shock absorber combined piston comprises a support ring 1, the upper surface of the support ring 1 is fixedly connected with a first cylinder 2, the upper surface of the first cylinder 2 is fixedly connected with a lower limit ring 3, the upper surface of the lower limit ring 3 is fixedly connected with a second cylinder 4, the upper surface of the second cylinder 4 is fixedly connected with an upper limit ring 5, the surface of the second cylinder 4 is fixedly connected with a separator ring 6, the upper and lower sides of the separator ring 6, the bottom of the upper limit ring 5 and the upper surface of the lower limit ring 3 are all provided with elastic piston rings 7, the separator ring 6, the upper limit ring 5 and the lower limit ring 3 are used to position the elastic piston ring 7, and the elastic piston ring 7 is fixedly connected with a second cylinder 4, the upper limit ring 5 and the lower limit ring 3. A strip hole 8 is opened inside, and the inner wall of the strip hole 8 contacts the surface of the second cylinder 4. The length of the strip hole 8 is the same as the diameter of the second cylinder 4. Through the cooperation of the strip hole 8 and the second cylinder 4, the elastic piston ring 7 cannot be separated from the separating ring 6. The inner wall of the upper limit ring 5, the inner wall of the separating ring 6 and the surface of the elastic piston ring 7 are all fitted with a pressing bracket 9. The inner wall of the pressing bracket 9 is threadedly connected to the piston rod 10. The bottom of the piston rod 10 and the left and right sides of the inner wall of the support ring 1 are fixedly connected with a strip plate 11, and the piston rod 10 is connected to the support ring 1 through the strip plate 11.

[0025] The pressing bracket 9 includes a cylinder 91, the inner wall of the cylinder 91 contacts the surface of the piston rod 10, a bearing 92 is fixedly connected to the surface of the cylinder 91, a connecting frame 93 is fixedly connected to the surface of the bearing 92, an adjusting nut 94 is fixedly connected to the upper surface of the connecting frame 93, the inner wall of the adjusting nut 94 is threadedly connected to the surface of the piston rod 10, a circular block 95 is fixedly connected to the surface of the cylinder 91, the inner wall of the upper limit ring 5, the inner wall of the separator ring 6 and the surface of the elastic piston ring 7 are all in contact with the surface of the circular block 95, and the bottom of the circular block 95 and the surface of the cylinder 91 are fixedly connected with a conical block 96 The top diameter of the conical block 96 is equal to the diameter of the circular block 95, and the bottom diameter of the conical block 96 is smaller than the diameter of the circular block 95. When the user rotates the adjusting nut 94, the distance between the circular block 95 and the strip plate 11 can be changed by adjusting the nut 94 and the piston rod 10. At the same time, when the circular block 95 contacts the elastic piston ring 7, the elastic piston ring 7 is stretched open by the circular block 95 and contacts the inner wall of the cylinder body. When the circular block 95 is separated from the elastic piston ring 7, the elastic piston ring 7 can be separated from the cylinder body by the elasticity of the elastic piston ring 7 itself.

[0026] Embodiment 2:

[0027] Reference Figure 1-6 , the left and right sides of the piston rod 10 are provided with positioning grooves 12, and the left and right sides of the adjusting nut 94 are provided with grooves 13. The inner wall of the groove 13 is fixedly connected with a U-shaped spring piece 14, and the side of the U-shaped spring piece 14 away from the piston rod 10 is fixedly connected with a positioning column 15. The inner wall of the positioning groove 12 and the inner wall of the groove 13 are both in contact with the surface of the positioning column 15, and the elastic force of the U-shaped spring piece 14 is greater than the gravity of the positioning column 15. When the positioning groove 12 is aligned with the groove 13, the positioning column 15 is inserted into the positioning groove 12 through the elastic force of the U-shaped spring piece 14, and the adjusting nut 94 cannot be rotated through the cooperation of the positioning groove 12, the positioning column 15 and the groove 13, so that the adjusting nut 94 cannot rotate during the use of the combined piston, so that the size of the contact surface between the combined piston and the cylinder body is not easily changed due to vibration. At the same time, the user can separate the positioning column 15 from the positioning groove 12 while clamping the adjusting nut 94 with a tool, so that the user is more convenient when rotating the adjusting nut 94.

[0028] In the utility model, when the user adjusts the size of the contact surface between the combined piston and the shock absorber cylinder, the user first rotates the adjusting nut 94 to change the distance between the circular block 95 and the strip plate 11 under the cooperation of the adjusting nut 94 and the piston rod 10. When the circular block 95 contacts the elastic piston ring 7, the elastic piston ring 7 is stretched open by the circular block 95 and the elastic piston ring 7 is in contact with the inner wall of the cylinder. When the circular block 95 is separated from the elastic piston ring 7, the elastic piston ring 7 can be separated from the cylinder by the elasticity of the elastic piston ring 7 itself. At this time, by changing the contact amount of the elastic piston ring 7 with the cylinder, the size of the contact surface between the combined piston and the cylinder can be changed.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0030] 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.

Claims

1. A high-strength shock absorber combined piston, comprising a support ring (1), characterized in that: The upper surface of the support ring (1) is fixedly connected to a first cylinder (2), the upper surface of the first cylinder (2) is fixedly connected to a lower limit ring (3), the upper surface of the lower limit ring (3) is fixedly connected to a second cylinder (4), the upper surface of the second cylinder (4) is fixedly connected to an upper limit ring (5), the surface of the second cylinder (4) is fixedly connected to a separator ring (6), and the upper and lower sides of the separator ring (6), the bottom of the upper limit ring (5) and the upper surface of the lower limit ring (3) are all provided with elastic The elastic piston ring (7) is provided with a strip hole (8) inside, the inner wall of the strip hole (8) contacts the surface of the second cylinder (4), the inner wall of the upper limit ring (5), the inner wall of the separation ring (6) and the surface of the elastic piston ring (7) are all fitted with a pressing bracket (9), the inner wall of the pressing bracket (9) is threadedly connected to a piston rod (10), and the bottom of the piston rod (10) and the left and right sides of the inner wall of the support ring (1) are fixedly connected with a strip plate (11).

2. The high-strength shock absorber combined piston according to claim 1, characterized in that: The pressing bracket (9) comprises a cylinder (91), the inner wall of which contacts the surface of the piston rod (10), the surface of the cylinder (91) is fixedly connected to a bearing (92), the surface of the bearing (92) is fixedly connected to a connecting frame (93), the upper surface of the connecting frame (93) is fixedly connected to an adjusting nut (94), the inner wall of the adjusting nut (94) is threadedly connected to the surface of the piston rod (10), the surface of the cylinder (91) is fixedly connected to a circular block (95), the inner wall of the upper limit ring (5), the inner wall of the separating ring (6) and the surface of the elastic piston ring (7) are all in contact with the surface of the circular block (95), and the bottom of the circular block (95) and the surface of the cylinder (91) are fixedly connected to a conical block (96).

3. The high-strength shock absorber combined piston according to claim 1, characterized in that: The length of the strip-shaped hole (8) is equal to the diameter of the second cylinder (4).

4. The high-strength shock absorber combined piston according to claim 2, characterized in that: The piston rod (10) is provided with a positioning groove (12) on both sides, and the adjusting nut (94) is provided with a groove (13) on both sides. The inner wall of the groove (13) is fixedly connected with a U-shaped spring piece (14). The side of the U-shaped spring piece (14) away from the piston rod (10) is fixedly connected with a positioning column (15). The inner wall of the positioning groove (12) and the inner wall of the groove (13) are in contact with the surface of the positioning column (15).

5. The high-strength shock absorber combined piston according to claim 4, characterized in that: The elastic force of the U-shaped spring piece (14) is greater than the gravity of the positioning column (15).

6. The high-strength shock absorber combined piston according to claim 2, characterized in that: The top diameter of the conical block (96) is equal to the diameter of the circular block (95), and the bottom diameter of the conical block (96) is smaller than the diameter of the circular block (95).

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