Top end connecting structure of automobile shock absorber

Abstract

The top end connecting structure of the automobile shock absorber comprises an upper shell body and a lower shell body, the upper shell body and the lower shell body are provided with fixing structures used for fixing, and the fixing structures comprise upper shell body long notches and lower shell body long notches which are formed in the four corners of the upper shell body and the four corners of the lower shell body and penetrate through the upper shell body long notches and the lower shell body long notches. The fixing structure comprises an upper shell long notch and a lower shell long notch, the upper shell long notch and the lower shell long notch vertically correspond to each other, the fixing structure further comprises a fixing bolt matched with the upper shell long notch and the lower shell long notch, the fixing bolt comprises a threaded bottom and is provided with a nut in a threaded mode through the threaded bottom, and annular positioning grooves are formed in the middle of the inner wall of the upper shell long notch and the middle of the inner wall of the lower shell long notch. According to the automobile shock absorber top end connecting structure, when shock absorbers of different models of automobiles are installed, the automobile shock absorber top end connecting structure can adapt to the situation of different installation hole distances so as to be matched with the positions of installation holes in the actual installation process.

Description

Technical Field

[0001] This utility model relates to the field of shock absorber equipment technology, and in particular to the top connection structure of automotive shock absorbers. Background Technology

[0002] Shock absorbers are used to suppress the oscillations generated after the spring absorbs and rebounds, as well as some impacts from the road surface. Shock absorbers are widely used in automobiles. The functions of the top connection structure of an automotive shock absorber include, but are not limited to, the following: correctly supporting the shock absorber's position within the vehicle body; damping the shock during cornering to allow the steering wheels to rotate freely; and effectively reducing and absorbing the motion resistance transmitted from the road surface to the shock absorber and vehicle body. Therefore, the top connection structure of the shock absorber is a crucial component connecting the shock absorber to the vehicle body.

[0003] Patent publication number CN203780251U discloses a top connection structure for automotive shock absorbers. It proposes that the main body of the connection structure is generally an axisymmetric circle, formed and welded from steel sheet metal. When modifying or altering a car model, if the wheelbase needs to be changed, the connection plate often needs to be moved outwards, requiring corresponding modifications to the vehicle body. This results in long development cycles and high costs. Considering these issues, existing top connection structures for automotive shock absorbers require modifications to the corresponding connection structure model when dealing with different styles and shapes of shock absorbers. Furthermore, the top connection structures for shock absorbers of similar car models have similar shapes, differing only in the increase or decrease of their corresponding mounting hole spacing. Producing other models or sizes of top connection structures for automotive shock absorbers would waste time and increase costs. Therefore, we propose a top connection structure for automotive shock absorbers that can accommodate different mounting hole spacings. Utility Model Content

[0004] The purpose of this utility model is to design a top connection structure for automobile shock absorbers to overcome the shortcomings of the above-mentioned technologies.

[0005] The automotive shock absorber top connection structure designed in this utility model includes an upper housing and a lower housing, and the upper housing and lower housing are provided with fixing structures for fixing.

[0006] The fixing structure includes through-hole long slots at the four corners of the upper and lower shells, with the upper and lower shell long slots corresponding vertically. The fixing structure also includes fixing bolts that fit into the upper and lower shell long slots. The fixing bolts have threaded bottoms, and nuts are installed through the threaded bottoms of the threads.

[0007] The upper and lower housings each have an annular positioning groove in the middle of their inner walls. The fixing bolt has two positioning sleeves that are rotatably provided at the positions of the positioning grooves on the upper and lower housings, respectively. Each positioning sleeve includes a protrusion that fits into the positioning groove. The vertical height of the protrusion is the same as the height of the positioning groove. The fixing bolt is inserted from the upper housing to the bottom of the lower housing. The two positioning sleeves on the fixing bolt correspond to the two positioning grooves respectively. When the positioning sleeve is rotated, the protrusion rotates into the positioning groove for vertical locking and is fixed by screwing the nut into the bottom of the thread.

[0008] The inner side of the positioning sleeve is made of rubber. The inner cavity of the positioning sleeve is fitted with the outer wall of the bolt rod of the fixing bolt. The fixing bolt has threads at both the upper and lower ends of the positioning sleeve installation location, and two round nuts are screwed into the threads to limit the upper and lower positioning of the positioning sleeve. The diameter of the round nuts is smaller than the diameter of the positioning sleeve.

[0009] A fixing part is provided in the middle area of ​​the top of the upper shell, and a shock-absorbing rubber body is threaded on the outer wall of the fixing part.

[0010] A rubber bushing is provided in the middle area of ​​the top of the lower housing.

[0011] A circular mounting opening is provided in the middle of the lower housing. Support protrusions are provided at equal intervals on the inner wall of the mounting opening. Each support protrusion includes a positioning platform on a horizontal plane.

[0012] The automotive shock absorber top connection structure designed in this utility model can be used to fix shock absorbers of different models of vehicles with different mounting hole spacings. The long slot can be fixed at any position within its slot by fixing bolts and bottom nuts, which can adapt to different mounting hole spacings. When the mounting hole spacing is large, four fixing bolts can be installed on the outermost part of the four long slots. This can be used for mounting holes with large spacing. Similarly, the bolts can be installed on the innermost part of the long slot or at any position within the long slot to adapt to the actual mounting hole position. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure;

[0014] Figure 2 yes Figure 1 A structural schematic diagram from another angle (including a magnified view of a part);

[0015] Figure 3 This is a structural diagram of the lower shell.

[0016] Figure 4 This is a schematic diagram of the structure from a side view.

[0017] In the diagram: 1. Upper housing; 2. Fixing bolt; 3. Locating pin; 4. Vibration damping rubber body; 5. Long slot of upper housing; 6. Long slot of lower housing; 7. Rubber bushing; 8. Lower housing; 9. Fixing part; 10. Locating sleeve; 11. Locating groove; 12. Bolt; 13. Nut; 14. Thread bottom; 15. Mounting port; 16. Support protrusion; 17. Locating platform. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0019] Example 1:

[0020] like Figure 1-4 As shown, the automotive shock absorber top connection structure described in this embodiment includes an upper housing 1 and a lower housing 8, and the upper housing 1 and the lower housing 8 are provided with fixing structures for fixing.

[0021] The aforementioned fixing structure includes through-hole long slots 5 and 6 at the four corners of the upper housing 1 and lower housing 8, respectively. The long slots 5 and 6 correspond vertically. The fixing structure also includes fixing bolts 2 that are adapted to the long slots 5 and 6. The fixing bolts 2 include a threaded bottom 14, and a nut 13 is threaded onto the threaded bottom 14. Therefore, when the connection structure in this embodiment is used to install shock absorbers for different models of vehicles, the long slots 5 can be fixed at any position within their slots by the fixing bolts 2 and the bottom nut 13, adapting to different mounting hole spacings. For example, when the mounting hole spacing is large, four fixing bolts can be installed on the outermost part of the four long slots, which can be used for mounting holes with large spacing. Similarly, the bolts can be installed on the innermost part of the long slots or at any position within the long slots to adapt to the actual mounting hole position.

[0022] To increase the stability of the above-mentioned fixing operation, annular positioning grooves 11 are opened in the middle of the inner wall of the upper shell long slot 5 and the lower shell long slot 6. The fixing bolt 2 is rotatably provided with two positioning sleeves 10 corresponding to the positions of the positioning grooves 11 on the upper shell long slot 5 and the lower shell long slot 6. The positioning sleeve 10 includes a protrusion that fits into the positioning groove 11. The vertical height of the protrusion is the same as the height of the positioning groove 11. The fixing bolt 2 is inserted from the upper shell 1 to the bottom of the lower shell 8. The two positioning sleeves 10 on the fixing bolt 2 correspond to the two positioning grooves 11 respectively. When the positioning sleeve 10 is rotated, the protrusion rotates into the positioning groove 11 for vertical locking and is fixed by screwing the nut 13 into the bottom thread 14.

[0023] The inner side of the positioning sleeve 10 is made of rubber. The inner cavity of the positioning sleeve 10 is sleeved with the outer wall of the bolt rod 12 of the fixing bolt 2. The inner diameter of the positioning sleeve 10 can be equal to or slightly smaller than the diameter of the outer wall of the bolt rod 12. The fixing bolt 2 has threads at both the upper and lower ends of the positioning sleeve 10, and two round nuts (not shown) are screwed into the threads to limit the positioning sleeve 10 to the upper and lower positions. The diameter of the round nuts is smaller than the diameter of the positioning sleeve 10. The two nuts only have a limiting function. The positioning sleeve 10 is elastically sleeved on the outer wall of the bolt rod 12. When rotating the positioning sleeve 10, it is necessary to overcome the friction between the positioning sleeve 10 and the bolt rod 12. During the process, the two nuts limit the movement.

[0024] To facilitate connection with the shock absorber, a fixing part 9 is provided in the middle area of ​​the top of the upper housing 1, and a shock-absorbing rubber body 4 is threaded onto the outer wall of the fixing part 9. A rubber bushing 7 is provided in the middle area of ​​the top of the lower housing 8. A circular mounting port 15 is opened in the middle of the lower housing 8, and support protrusions 16 are provided at equal intervals on the inner wall of the mounting port 15. The support protrusions 16 include a positioning platform 17 on a horizontal plane. The bottom of the shock absorber is limited by the positioning platform 17, and the shock absorber is within the protection range of the rubber bushing 7. The piston rod of the shock absorber extends out through the fixing part 9. The entire shock absorber is fixedly installed by the upper housing 1, the lower housing 8, and the rubber bushing 7.

[0025] In this embodiment, when installing shock absorbers for different vehicle models, the long slot 5 can be fixed at any position within its slot using the fixing bolt 2 and the bottom nut 13, adapting to different mounting hole spacings. When the mounting hole spacing is large, four fixing bolts can be installed on the outermost part of the four long slots, which can be used for mounting holes with large spacing. Similarly, the bolts can be installed on the innermost part of the long slot or at any position within the long slot to adapt to the actual mounting hole position.

[0026] This utility model is not limited to the above-described preferred embodiments. Anyone can derive other forms of products under the guidance of this utility model. However, regardless of any changes made in their shape or structure, any technical solution that is the same as or similar to this application falls within the protection scope of this utility model.

Claims

1. A top end connection structure of an automobile shock absorber comprising an upper housing (1) and a lower housing (8), characterized by, The upper shell (1) and the lower shell (8) are provided with fixing structures for fixing. The fixing structure includes an upper shell (1) and a lower shell (8) with through-hole long slots (5) and (6) at their four corners. The upper shell long slots (5) and (6) correspond vertically. The fixing structure also includes fixing bolts (2) that are adapted to the upper shell long slots (5) and (6) and the lower shell long slots (6). The fixing bolts (2) include a threaded bottom (14), and a nut (13) is threaded through the threaded bottom (14). The inner walls of the upper shell long slot (5) and the lower shell long slot (6) are both provided with annular positioning grooves (11). The fixing bolt (2) is rotatably provided with two positioning sleeves (10) corresponding to the positions of the positioning grooves (11) on the upper shell long slot (5) and the lower shell long slot (6). The positioning sleeve (10) includes a protrusion that fits the positioning groove (11). The height of the protrusion is the same as the height of the positioning groove (11). The fixing bolt (2) is inserted from the upper shell (1) to the bottom of the lower shell (8). The two positioning sleeves (10) on the fixing bolt (2) correspond to the two positioning grooves (11) respectively. When the positioning sleeve (10) is rotated, the protrusion rotates to the positioning groove (11) for vertical locking and is fixed by screwing the nut (13) into the bottom of the thread (14).

2. The automobile shock absorber top end connection structure according to claim 1, characterized by The inner side of the positioning sleeve (10) is made of rubber. The inner cavity of the positioning sleeve (10) is connected to the outer wall of the bolt rod (12) of the fixing bolt (2). The fixing bolt (2) has threads at both the upper and lower ends of the positioning sleeve (10) and two round nuts are screwed in through the threads to limit the positioning sleeve (10) to the upper and lower positions. The diameter of the round nuts is smaller than the diameter of the positioning sleeve (10).

3. The automobile shock absorber top end connection structure according to claim 2, characterized by The upper shell (1) has a fixing part (9) in the middle area at the top, and a shock-absorbing rubber body (4) is threaded on the outer wall of the fixing part (9).

4. The automobile shock absorber top end connection structure according to claim 3, characterized by A rubber bushing (7) is provided in the middle area of ​​the top of the lower housing (8).

5. The automobile shock absorber top end connection structure according to claim 4, characterized by The lower housing (8) has a circular mounting port (15) in the middle. Support protrusions (16) are provided at equal intervals on the inner wall of the mounting port (15). Each support protrusion (16) includes a positioning platform (17) on a horizontal plane.

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