High-strength floating piston

Abstract

The utility model discloses a high-strength floating piston which comprises a piston body, a cavity is formed in the piston body, a connecting part is arranged in the cavity, a connecting hole with threads is formed in the connecting part, a limiting and reinforcing assembly is arranged in the cavity, one end of the limiting and reinforcing assembly abuts against the inner wall of the cavity, and the other end of the limiting and reinforcing assembly abuts against the inner wall of the cavity. And the other end of the limiting and reinforcing assembly is clamped on the outer side wall of the connecting part. The connecting part is arranged in the cavity of the piston, the connecting hole with the threads is formed in the connecting part and used for being connected with the piston rod, the limiting and reinforcing assembly is arranged in the cavity, one end of the limiting and reinforcing assembly abuts against the inner wall of the cavity, the other end of the limiting and reinforcing assembly is clamped on the outer side wall of the connecting part, and therefore the contact area of the connecting part and the cavity is increased; therefore, the stability of connection between the connecting part and the cavity is improved, and the structural strength of the connecting part is improved at the same time.

Description

Technical Field

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

[0002] Most of the shock absorbers used in vehicles are hydraulic shock absorbers. When the vehicle is driving bumpy, the piston rod in the hydraulic shock absorber continuously moves in the cylinder, and the shock-absorbing oil in the cylinder continuously flows up and down through the valve plate in the valve body to buffer the impact force and reduce the degree of bumpiness.

[0003] The floating piston is an important component in the shock absorber, because the upper chamber of the shock absorber cylinder is the shock absorber oil, and the lower chamber is the high-pressure nitrogen, which requires good sealing and strength to separate the two media. At the same time, due to the change in volume of the upper chamber caused by the up and down movement of the piston rod, the floating piston needs to be able to slide smoothly up and down along the inner wall of the working cylinder. Furthermore, when the floating piston slides up and down, friction and heat will be generated, so the floating piston needs to have good resistance to thermal deformation.

[0004] The piston rod is connected to the cavity of the piston. The piston rod drives the piston to rise and fall in the cylinder. The connection between the piston rod and the piston is crucial. Therefore, it is urgent to design a high-strength piston. Utility Model Content

[0005] The utility model aims to solve the above-mentioned technical problems existing in the prior art and provides a high-strength floating piston. A connecting part is arranged in the cavity of the piston, and a threaded connecting hole is arranged in the connecting part for connecting the piston rod. A limiting reinforcement component is arranged in the cavity. One end of the limiting reinforcement component is tightly pressed against the inner wall of the cavity, and the other end is clamped on the outer wall of the connecting part, thereby increasing the contact area between the connecting part and the cavity, thereby improving the stability of the connection between the connecting part and the cavity, and at the same time improving the structural strength of the connecting part.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A high-strength floating piston comprises a piston body, a cavity is provided in the piston body, a connecting part is provided in the cavity, a threaded connecting hole is provided in the connecting part, a limiting reinforcement component is provided in the cavity, one end of the limiting reinforcement component is pressed against the inner wall of the cavity, and the other end of the limiting reinforcement component is clamped on the outer wall of the connecting part. The utility model increases the contact area between the connecting part and the cavity by providing a connecting part in the cavity of the piston, a threaded connecting hole is provided in the connecting part, and the limiting reinforcement component is provided in the cavity, one end of the limiting reinforcement component is pressed against the inner wall of the cavity, and the other end is clamped on the outer wall of the connecting part, thereby improving the stability of the connection between the connecting part and the cavity and improving the structural strength of the connecting part.

[0008] Furthermore, the connection part is fixedly connected to the cavity by a fixing member. The fixing member is provided to fix the connection part in the cavity, and if the connection part is damaged, it can be replaced separately, which has the effect of saving costs.

[0009] Furthermore, the fixing part is provided with a connecting column and a connecting screw, the connecting columns are evenly distributed on the end surface of the connecting part, the top of the piston body is provided with a step hole corresponding to the connecting column, the connecting column is provided with a connecting screw hole, and the connecting screw is screwed into the connecting screw hole and tightened in the step hole, so that the connecting part is fixedly connected in the cavity. First, the connecting part is installed in the cavity, and then the connecting column is passed through the step hole, and then the connecting screw is screwed into the connecting screw hole from the top of the piston body, and the connecting part is fixed in the cavity by tightening the connecting screw in the step hole.

[0010] Furthermore, the position limiting reinforcement assembly includes a clamping member and a jacking member, one end of the jacking member is fixedly connected to the clamping member, the other end of the jacking member is against the inner wall of the cavity, and the clamping member is clamped on the outer side of the connection part. The clamping member is used to clamp on the connection part, thereby improving the structural strength of the connection part, one end of the jacking member is connected to the clamping member, and the other end of the jacking member is against the inner wall of the cavity, thereby increasing the contact area between the connection part and the cavity, thereby improving the stability of the connection between the connection part and the cavity.

[0011] Furthermore, the clamping member includes a semicircular clamp and a connecting screw, the two semicircular clamps are mirror-imaged on both sides of the connecting portion, the two semicircular clamps are clamped on both sides of the connecting portion, both ends of the semicircular clamps are provided with fixing blocks, the connecting screw passes through the corresponding two fixing blocks, both ends of the connecting screw are screwed with fastening nuts, and the fastening nuts are tightened on the fixing blocks. The two semicircular clamps are clamped on both sides of the connecting portion, the connecting screw passes through the corresponding two fixing blocks, and then the fastening nuts are screwed into both ends of the connecting screw and tightened on the fixing blocks for fixing, so that the clamping member is fixedly connected to the connecting portion.

[0012] Further, the tensioning member includes a connecting rod 1, a connecting rod 2 and a tensioning block, one end of the connecting rod 1 is fixedly connected to the clamping member, one end of the connecting rod 2 is telescopically connected to the other end of the connecting rod 1, and the other end of the connecting rod 1 is circumferentially distributed with tensioning screws, the tensioning screws are tightened on one end of the connecting rod 2, and the other end of the connecting rod 2 is fixedly connected to the tensioning block, and the connecting rod 2 controls the tensioning block to press against the inner wall of the cavity. The connecting rod 2 is telescopically connected to the connecting rod 1, the connecting rod 1 is fixed to the clamping member, the connecting rod 2 drives the tensioning block to press against the inner wall of the cavity, and the tensioning screw on the connecting rod 1 tightens the connecting rod 2, thereby fixing the connecting rod 2 to the connecting rod 1.

[0013] Furthermore, a connection seat is provided in the cavity corresponding to the connecting rod 1, and a clamping groove is provided in the connection seat, and the connecting rod 1 is clamped in the clamping groove. The setting of the groove increases the fixed connection between the connection seat and the connecting rod 1, and the connecting rod 1 is fixed to the cavity through the connection seat, thereby increasing the stability of the connecting rod 1.

[0014] Furthermore, an annular groove is provided on the outer side wall of the piston body, and the annular groove is used to install the piston ring. The provision of the annular groove facilitates the installation of the piston ring.

[0015] The utility model has the following beneficial effects due to the adoption of the above technical solution:

[0016] The utility model provides a connecting part in the cavity of the piston, and a connecting hole with a thread is provided in the connecting part for connecting the piston rod, and a limiting reinforcement component is provided in the cavity, one end of the limiting reinforcement component is pressed against the inner wall of the cavity, and the other end is clamped on the outer wall of the connecting part, thereby increasing the contact area between the connecting part and the cavity, thereby improving the stability of the connection between the connecting part and the cavity, and at the same time improving the structural strength of the connecting part.

[0017] In the utility model, the fixing part is provided with a connecting column and a connecting screw, the connecting columns are evenly distributed on the end surface of the connecting part, the top of the piston body is provided with a step hole corresponding to the connecting column, the connecting column is provided with a connecting screw hole, and the connecting screw is screwed into the connecting screw hole and then tightened in the step hole, so that the connecting part is fixedly connected in the cavity. First, the connecting part is installed in the cavity, and then the connecting column is passed through the step hole, and then the connecting screw is screwed into the connecting screw hole from the top of the piston body, and the connecting part is fixed in the cavity by tightening the connecting screw in the step hole.

[0018] The tightening member in the utility model includes a connecting rod 1, a connecting rod 2 and a tightening block, one end of the connecting rod 1 is fixedly connected to the clamping member, one end of the connecting rod 2 is telescopically connected to the other end of the connecting rod 1, and tightening screws are circumferentially distributed on the other end of the connecting rod 1, and the tightening screws are tightened on one end of the connecting rod 2, and the other end of the connecting rod 2 is fixedly connected to the tightening block, and the connecting rod 2 controls the tightening block to press against the inner wall of the cavity. The connecting rod 2 is telescopically connected to the connecting rod 1, the connecting rod 1 is fixed on the clamping member, the connecting rod 2 drives the tightening block to press against the inner wall of the cavity, and the tightening screw on the connecting rod 1 tightens the connecting rod 2, thereby fixing the connecting rod 2 to the connecting rod 1. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings:

[0020] Figure 1 This is a schematic diagram of the structure of a high-strength floating piston of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure in the cavity of the utility model;

[0022] Figure 3 It is an exploded view of the floating piston in the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the piston body in the utility model;

[0024] Figure 5 It is a structural schematic diagram of the position limiting reinforcement component in the utility model.

[0025] In the figure, 1-piston body; 2-cavity; 3-connecting part; 4-connecting hole; 5-limiting reinforcement assembly; 6-connecting column; 7-connecting screw; 8-step hole; 9-connecting screw hole; 10-clamping piece; 11-tension piece; 12-semicircular clamp; 13-connecting screw; 14-fixing block; 15-fastening nut; 16-connecting rod one; 17-connecting rod two; 18-tensioning block; 19-tensioning screw; 20-connecting seat; 21-slot; 22-ring groove. DETAILED DESCRIPTION

[0026] like Figures 1 to 5 As shown, a high-strength floating piston of the utility model includes a piston body 1, a cavity 2 is provided in the piston body 1, a connecting part 3 is provided in the cavity 2, the connecting part 3 is provided with a threaded connecting hole 3, a limiting reinforcement component 5 is provided in the cavity 2, one end of the limiting reinforcement component 5 is pressed against the inner wall of the cavity 2, and the other end of the limiting reinforcement component 5 is clamped on the outer wall of the connecting part 3.

[0027] The connecting part 3 is fixedly connected in the cavity 2 by a fixing part. The fixing part is provided to fix the connecting part 3 in the cavity 2. At the same time, if the connecting part 3 is damaged, it can be replaced separately, which has the effect of saving costs. The fixing part is provided with a connecting column 6 and a connecting screw 7. The connecting column 6 is evenly distributed on the end surface of the connecting part 3. The top of the piston body 1 is provided with a step hole 8 corresponding to the connecting column 6. The connecting column 6 is provided with a connecting screw hole 9. The connecting screw 7 is screwed into the connecting screw hole 9 and then tightened in the step hole 8, so that the connecting part 3 is fixedly connected in the cavity 2. First, the connecting part 3 is installed in the cavity 2, and then the connecting column 6 is passed through the step hole 8, and then the connecting screw 7 is screwed into the connecting screw hole 9 from the top of the piston body 1. By tightening the connecting screw 7 in the step hole 8, the connecting part 3 is fixed in the cavity 2.

[0028] The position limiting reinforcement assembly 5 includes a clamping member 10 and a pressing member 11, one end of the pressing member 11 is fixedly connected to the clamping member 10, the other end of the pressing member 11 is against the inner wall of the cavity 2, and the clamping member 10 is clamped on the outer side of the connecting portion 3. The clamping member 10 is used to clamp on the connecting portion 3, thereby improving the structural strength of the connecting portion 3, one end of the pressing member 11 is connected to the clamping member 10, and the other end of the pressing member 11 is pressed against the inner wall of the cavity 2, thereby increasing the contact area between the connecting portion 3 and the cavity 2, thereby improving the stability of the connection between the connecting portion 3 and the cavity 2.

[0029] The clamping member 10 includes a semicircular clamp 12 and a connecting screw 13. The two semicircular clamps 12 are mirror-imaged on both sides of the connecting portion 3. The two semicircular clamps 12 are clamped on both sides of the connecting portion 3. Both ends of the semicircular clamp 12 are provided with a fixing block 14. The connecting screw 13 passes through the corresponding two fixing blocks 14. Both ends of the connecting screw 13 are screwed with a fastening nut 15, and the fastening nut 15 is tightened on the fixing block 14. The two semicircular clamps 12 are clamped on both sides of the connecting portion 3. The connecting screw 13 passes through the corresponding two fixing blocks 14. The fastening nuts 15 are screwed into both ends of the connecting screw 13 and tightened on the fixing blocks 14 for fixing, so that the clamping member 10 is fixedly connected to the connecting portion 3.

[0030] The clamping member 11 includes a connecting rod 16, a connecting rod 2 17 and a clamping block 18. One end of the connecting rod 16 is fixedly connected to the clamping member 10, and one end of the connecting rod 2 17 is telescopically connected to the other end of the connecting rod 16. A clamping screw 19 is circumferentially distributed on the other end of the connecting rod 16. The clamping screw 19 is clamped on one end of the connecting rod 2 17. The other end of the connecting rod 2 17 is fixedly connected to the clamping block 18. The connecting rod 2 17 controls the clamping block 18 to press against the inner wall of the cavity 2. The connecting rod 2 17 is telescopically connected to the connecting rod 1 16. The connecting rod 1 16 is fixed on the clamping member 10. The connecting rod 2 17 drives the clamping block 18 to press against the inner wall of the cavity 2. The clamping screw 19 on the connecting rod 1 16 clamps the connecting rod 2 17, thereby fixing the connecting rod 2 17 to the connecting rod 1. A connection seat 20 is provided in the cavity 2 corresponding to the connecting rod 16, and the connection seat 20 is provided with a clamping groove 21, and the connecting rod 16 is clamped in the clamping groove 21. The setting of the groove increases the fixed connection between the connection seat 20 and the connecting rod 16, and the connecting rod 16 is fixed to the cavity 2 through the connection seat 20, thereby increasing the stability of the connecting rod 16.

[0031] The outer side wall of the piston body 1 is provided with an annular groove 22, and the annular groove 22 is used to install the piston ring. The provision of the annular groove 22 facilitates the installation of the piston ring.

[0032] The utility model arranges a connecting part 3 in the cavity 2 of the piston, and a threaded connecting hole 3 is arranged in the connecting part 3 for connecting the piston rod. A limiting reinforcement component 5 is arranged in the cavity 2, and one end of the limiting reinforcement component 5 is tightly pressed against the inner wall of the cavity 2, and the other end is clamped on the outer wall of the connecting part 3, thereby increasing the contact area between the connecting part 3 and the cavity 2, thereby improving the stability of the connection between the connecting part 3 and the cavity 2, and at the same time improving the structural strength of the connecting part 3.

[0033] The above are only specific embodiments of the utility model, but the technical features of the utility model are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the utility model to solve basically the same technical problems and achieve basically the same technical effects are all included in the protection scope of the utility model.

Claims

1. A high-strength floating piston, characterized in that: It includes a piston body, a cavity is provided in the piston body, a connecting part is provided in the cavity, the connecting part is provided with a threaded connecting hole, a limiting reinforcement component is provided in the cavity, one end of the limiting reinforcement component is pressed against the inner wall of the cavity, and the other end of the limiting reinforcement component is clamped on the outer wall of the connecting part.

2. A high-strength floating piston according to claim 1, characterized in that: The connecting portion is fixedly connected to the cavity via a fixing member.

3. A high-strength floating piston according to claim 2, characterized in that: The fixing part is provided with connecting columns and connecting screws, the connecting columns are evenly distributed on the end surface of the connecting part, the top of the piston body is provided with a step hole corresponding to the connecting column, the connecting column is provided with a connecting screw hole, the connecting screw is screwed into the connecting screw hole and then tightened in the step hole, so that the connecting part is fixedly connected to the cavity.

4. A high-strength floating piston according to claim 1, characterized in that: The position limiting reinforcement assembly includes a clamping member and a pressing member, one end of the pressing member is fixedly connected to the clamping member, the other end of the pressing member is against the inner wall of the cavity, and the clamping member is clamped on the outer side of the connecting portion.

5. A high-strength floating piston according to claim 4, characterized in that: The clamping member includes a semicircular clamp and a connecting screw. The two semicircular clamps are mirror-imaged on both sides of the connecting portion. The two semicircular clamps are clamped on both sides of the connecting portion. Fixed blocks are provided at both ends of the semicircular clamps. The connecting screw passes through the corresponding two fixed blocks. Fastening nuts are screwed into both ends of the connecting screw, and the fastening nuts are tightened on the fixed blocks.

6. A high-strength floating piston according to claim 4, characterized in that: The tightening member includes connecting rod 1, connecting rod 2 and a tightening block. One end of connecting rod 1 is fixedly connected to the clamping member, one end of connecting rod 2 is telescopically connected to the other end of connecting rod 1, and tightening screws are distributed circumferentially on the other end of connecting rod 1. The tightening screws are tightened on one end of connecting rod 2, and the other end of connecting rod 2 is fixedly connected to the tightening block. Connecting rod 2 controls the tightening block to press against the inner wall of the cavity.

7. A high-strength floating piston according to claim 6, characterized in that: A connecting seat is provided in the cavity corresponding to the connecting rod 1, and the connecting seat is provided with a clamping groove, and the connecting rod 1 is clamped in the clamping groove.

8. The high-strength floating piston according to claim 1, characterized in that: The outer side wall of the piston body is provided with an annular groove, and the annular groove is used for installing a piston ring.

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