A dual spring structure shock absorber

Abstract

The utility model discloses a double -spring structure shock absorber, including piston cylinder, the bottom of piston cylinder is equipped with fixed connector, install the piston rod in the piston cylinder, the top of piston rod is welded with internal thread cylinder, the inner wall screw thread connection of internal thread cylinder has movable connector, the bottom of movable connector is equipped with threaded column, threaded column and internal thread cylinder screw thread adaptation, be equipped with the locking structure of locking threaded column between threaded column and internal thread cylinder, the top of movable connector is equipped with the rotation groove, the inner wall rotation of rotation groove is connected with the connector, the outer wall of piston cylinder is equipped with sliding area, the side wall sliding connection of sliding area has the limit slide, the upper and lower of sliding area all are equipped with the limit structure that limit slide limit, be equipped with spring no.

Description

Technical Field

[0001] This utility model relates to the technical field of double-spring shock absorbers, and in particular to a double-spring structure shock absorber. Background Technology

[0002] Dual-spring shock absorbers offer better comfort compared to single-spring shock absorbers: By using two springs of different stiffness, dual-spring shock absorbers can better mitigate bumps and vibrations during vehicle operation. This design not only improves ride comfort but also helps reduce physical injury to the driver and passengers. Due to their stronger support and damping performance, dual-spring shock absorbers can typically withstand longer periods of use and harsher environmental conditions, thus having a longer service life.

[0003] However, after long-term use, the springs of the shock absorber will fatigue, and the shock absorber will completely lose its damping performance, failing to effectively buffer and isolate vibrations. At this time, the springs need to be replaced. However, the existing shock absorbers have a complicated structure, resulting in low disassembly and assembly efficiency. In addition, the mounting holes of the connectors are fixed in orientation, making them unsuitable for more diverse installation environments, and their practicality needs to be improved. Utility Model Content

[0004] The purpose of this utility model is to provide a double-spring structure shock absorber that can be quickly disassembled to remove the two springs, making disassembly convenient and easy to maintain. Furthermore, the mounting holes of the connector can be adjusted in direction according to the installation structure, making it suitable for more diverse installation environments.

[0005] To achieve the above objectives, a dual-spring shock absorber is provided, comprising a piston cylinder, a fixed connector at the bottom end of the piston cylinder, a piston rod installed inside the piston cylinder, an internally threaded cylinder welded to the top end of the piston rod, a movable connector threaded to the inner wall of the internally threaded cylinder, a threaded post at the bottom end of the movable connector, the threaded post being threadedly fitted to the internally threaded cylinder, a locking structure for locking the threaded post between the threaded post and the internally threaded cylinder, a rotating groove at the top of the movable connector, a connector head rotatably connected to the inner wall of the rotating groove, a sliding area on the outer wall of the piston cylinder, a limiting slider slidably connected to the side wall of the sliding area, limiting structures for limiting the limiting slider being provided above and below the sliding area, a first spring between the limiting slider and the fixed connector, and a second spring between the limiting slider and the movable connector.

[0006] According to the aforementioned dual-spring structure shock absorber, the locking structure includes a screw, a screw hole one, and a screw hole two. The screw hole one is opened on the side wall of the internal threaded cylinder, and the screw hole two is opened on the side wall of the threaded column. The positions of the screw hole one and the screw hole two correspond to each other, and the side wall of the screw is threadedly connected to the inner side wall of the screw hole one and the screw hole two.

[0007] According to the aforementioned dual-spring structure shock absorber, the limiting structure includes a connecting thread with an opening on the outer wall of the piston cylinder, and a limiting ring is threadedly connected to the outer wall of the connecting thread.

[0008] According to the aforementioned double-spring structure shock absorber, the upper and lower ends of the limiting slider are both provided with limiting grooves.

[0009] According to the aforementioned dual-spring structure shock absorber, the outer side wall of the limiting ring is provided with anti-slip texture to facilitate disassembly by workers.

[0010] According to the aforementioned dual-spring structure shock absorber, both the fixed connector and the movable connector have grooves on the side facing the limiting slider.

[0011] According to the aforementioned dual-spring structure shock absorber, both spring one and spring two do not contact each other with the limiting ring, thus avoiding affecting the operation of the springs.

[0012] According to the aforementioned dual-spring structure shock absorber, when the threaded post is fully inserted into the internal threaded cylinder, threaded hole one aligns with threaded hole two, providing conditions for the screw to pass through and connect.

[0013] This utility model has the following beneficial effects:

[0014] 1. Compared with existing technologies, this method, which uses an internal threaded cylinder, a limiting slider, screws, a movable connector, a limiting slider, and a sliding area, allows for easy disassembly and replacement of the spring. Simply remove the screws with a screwdriver to disengage them from screw holes one and two, releasing the limiting effect on the movable connector. Then, by rotating the movable connector, the threaded post disengages from the internal threaded cylinder, releasing the limiting effect on the spring and allowing it to be removed. Next, rotating the top limiting ring disengages it from the connecting thread, releasing the limiting effect on the limiting slider and the spring, allowing them to be removed. This method features a simple and stable structure, convenient disassembly, and easy maintenance.

[0015] 2. Compared with existing technologies, the connection head, through the setting of the rotating groove, can rotate in all directions because the connection head is rotatably connected to the rotating groove. It can be adjusted and changed according to the installation structure, making it suitable for more diverse installation environments and improving the practicality of the shock absorber. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0017] Figure 1 This is a perspective view of a double-spring structure shock absorber according to the present invention;

[0018] Figure 2 This is a partial structural diagram of a double-spring structure shock absorber according to this utility model;

[0019] Figure 3This is a partial cross-sectional view of a double-spring structure shock absorber according to the present invention;

[0020] Figure 4 This is a perspective view of the movable connector of a double-spring structure shock absorber according to this utility model;

[0021] Figure 5 This is a structural diagram of the limiting slider of a double-spring structure shock absorber according to this utility model.

[0022] Legend:

[0023] 1. Piston cylinder; 2. Piston rod; 3. Fixed connector; 4. Spring 1; 5. Spring 2; 6. Internal threaded cylinder; 7. Limiting slider; 8. Screw; 9. Movable connector; 10. Limiting ring; 101. Connecting thread; 102. Sliding area; 601. Screw hole 1; 701. Limiting groove; 901. Threaded post; 902. Rotating groove; 903. Connector; 904. Screw hole 2. Detailed Implementation

[0024] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0025] Reference Figure 1-5 This utility model discloses a double-spring structure shock absorber, comprising a piston cylinder 1, a fixed connector 3 at the bottom end of the piston cylinder 1, a piston rod 2 installed inside the piston cylinder 1, and an internally threaded cylinder 6 welded and fixed to the top end of the piston rod 2. A movable connector 9 is threadedly connected to the inner wall of the internally threaded cylinder 6. A threaded post 901 is provided at the bottom end of the movable connector 9, which is threadedly adapted to the internally threaded cylinder 6. A locking structure for locking the threaded post 901 is provided between the threaded post 901 and the internally threaded cylinder 6. A rotating groove 902 is provided at the top of the movable connector 9, and a connector 903 is rotatably connected to the inner wall of the rotating groove 902. A sliding area 102 is provided on the outer wall of the piston cylinder 1, and the side wall of the sliding area 102 is slidably connected to... The device includes a limit slider 7, with limit grooves 701 at both its upper and lower ends. The fixed connector 3 and the movable connector 9 each have grooves on their sides facing the limit slider 7. Limiting structures for limiting the limit slider 7 are provided above and below the sliding area 102. A spring 4 is provided between the limit slider 7 and the fixed connector 3, and a spring 5 is provided between the limit slider 7 and the movable connector 9. Springs 4 and 5 do not contact the limit ring 10. A connecting head 903 is connected via a rotating groove 902. Because the connecting head 903 is rotatably connected to the rotating groove 902, it can rotate omnidirectionally and be adjusted according to the installation structure, making it suitable for more diverse installation environments and improving the practicality of the shock absorber.

[0026] The locking structure includes a screw 8, a screw hole 601, and a screw hole 904. The screw hole 601 is located on the side wall of the internal threaded cylinder 6, and the screw hole 904 is located on the side wall of the threaded post 901. The screw holes 601 and 904 are positioned correspondingly. The side wall of the screw 8 is threadedly connected to the inner side wall of the screw holes 601 and 904. When the threaded post 901 is fully inserted into the internal threaded cylinder 6, the screw hole 601 is aligned with the screw hole 904.

[0027] The limiting structure includes a connecting thread 101 on the outer wall of the piston cylinder 1. Each connecting thread 101 has a limiting ring 10 threadedly connected to its outer wall, and the outer wall of the limiting ring 10 is provided with anti-slip texture. When disassembling and replacing the spring using the internal threaded cylinder 6, limiting slider 7, screw 8, movable connector 9, and sliding area 102, the screw 8 is removed with a screwdriver to disengage it from screw hole 601 and screw hole 904, releasing the limiting effect on the movable connector 9. Then, by rotating the movable connector 9, the threaded post 901 is disengaged from the internal threaded cylinder 6, releasing the limiting effect on the second spring 5 and allowing it to be removed. Next, the top limiting ring 10 is rotated to disengage it from the connecting thread 101, releasing the limiting effect on the limiting slider 7 and the second spring 5, allowing them to be removed. The structure is simple and stable, easy to disassemble, and convenient for maintenance.

[0028] Working principle: When using the spring, remove screw 8 with a screwdriver to disengage it from screw hole 601 and screw hole 904, thus releasing the restriction on the movable connector 9. Then, rotate the movable connector 9 to disengage the threaded post 901 from the internal threaded cylinder 6, thereby releasing the restriction on the second spring 5 and allowing it to be removed. Next, rotate the top limiting ring 10 to disengage it from the connecting thread 101, thereby releasing the restriction on the limiting slider 7 and the second spring 5. The limiting slider 7 and the second spring 5 can then be removed. The structure is simple and stable, easy to disassemble, and convenient for maintenance.

[0029] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A double-spring structure shock absorber, comprising a piston cylinder (1), characterized in that, The piston cylinder (1) has a fixed connector (3) at its bottom end. A piston rod (2) is installed inside the piston cylinder (1). An internally threaded cylinder (6) is welded and fixed to the top end of the piston rod (2). A movable connector (9) is threadedly connected to the inner wall of the internally threaded cylinder (6). A threaded post (901) is provided at the bottom end of the movable connector (9). The threaded post (901) is threadedly adapted to the internally threaded cylinder (6). A locking structure for locking the threaded post (901) is provided between the threaded post (901) and the internally threaded cylinder (6). (9) has a rotating groove (902) at the top. The inner wall of the rotating groove (902) is rotatably connected to a connector (903). The outer wall of the piston cylinder (1) has a sliding area (102). The side wall of the sliding area (102) is slidably connected to a limiting slider (7). The upper and lower sides of the sliding area (102) are provided with limiting structures to limit the limiting slider (7). A spring 1 (4) is provided between the limiting slider (7) and the fixed connector (3). A spring 2 (5) is provided between the limiting slider (7) and the movable connector (9).

2. The double-spring structure shock absorber according to claim 1, characterized in that, The locking structure includes a screw (8), a screw hole one (601), and a screw hole two (904). The screw hole one (601) is opened on the side wall of the internal threaded cylinder (6), and the screw hole two (904) is opened on the side wall of the threaded column (901). The positions of the screw hole one (601) and the screw hole two (904) are corresponding. The side wall of the screw (8) is threadedly connected to the inner side wall of the screw hole one (601) and the screw hole two (904).

3. A double-spring structure shock absorber according to claim 1, characterized in that, The limiting structure includes a connecting thread (101) on the outer wall of the piston cylinder (1), and the outer wall of the connecting thread (101) is threaded with a limiting ring (10).

4. A double-spring structure shock absorber according to claim 1, characterized in that, Limiting grooves (701) are provided at both the upper and lower ends of the limiting slider (7).

5. A double-spring structure shock absorber according to claim 3, characterized in that, The outer side wall of the limiting ring (10) is provided with anti-slip texture.

6. A double-spring structure shock absorber according to claim 1, characterized in that, Both the fixed connector (3) and the movable connector (9) have grooves on the side facing the limiting slider (7).

7. A double-spring structure shock absorber according to claim 1, characterized in that, Both spring one (4) and spring two (5) do not contact each other with the limiting ring (10).

8. A double-spring structure shock absorber according to claim 1, characterized in that, When the threaded post (901) is fully inserted into the internal threaded cylinder (6), the first threaded hole (601) is aligned with the second threaded hole (904).

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