A ball-end piston rod

Abstract

The utility model provides a ball-headed piston rod, which relates to the technical field of piston rods, and includes a piston rod body, wherein a first semicircular sleeve is fixedly connected to the top of the piston rod body near the right side, a T-slot is provided on the outer surface of the piston rod body near the top of the left side, and a T-block is slidably provided inside the T-slot. In the utility model, when the piston rod body and the spherical connector are connected, the bearing sleeve is inserted into the first semicircular sleeve after being placed outside the round seat, and then the T-block at the bottom of the second semicircular sleeve is inserted into the T-slot and is threadedly connected to the threaded hole after passing through the through slot with a bolt, at which time the first semicircular sleeve and the second semicircular sleeve will wrap the round seat and the bearing inside, thereby completing the connection between the piston rod body and the spherical connector, and the steps are reversed when dismantling, thereby solving the problem that the welded ball-headed piston rod cannot be repaired and the ball-headed piston rod with threaded connection has low reliability, and the utility model has high practicality.

Description

Technical Field

[0001] The utility model relates to the technical field of piston rods, in particular to a ball-head type piston rod. Background Art

[0002] The ball-end piston rod is a piston rod with a special structure. One end of the piston rod has a spherical connector. This design can achieve multi-angle rotation and swing within a certain range, increasing the flexibility and adaptability of the connection. It is often used in some mechanical devices that require angle adjustment during movement or have complex movement requirements.

[0003] The existing ball-end piston rod is mainly composed of a ball head component and a rod body, and the connection between the ball head component and the piston rod body is usually welded or threaded. The welded ball-end piston rod cannot be repaired, and the threaded ball-end piston rod is prone to shaking at the connection during movement, which may cause the piston rod length to change and has low reliability. Therefore, in response to the above problems, we propose a new type of ball-end piston rod. Utility Model Content

[0004] The utility model aims to solve the problem in the prior art that welded ball-end piston rods cannot be repaired, and that threaded ball-end piston rods are prone to shaking at the connection during movement, which may cause the piston rod length to change, thereby providing a ball-end piston rod with low reliability.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a ball-headed piston rod, comprising a piston rod body, a first semicircular sleeve is fixedly connected to the top of the piston rod body near the right side, a T-slot is provided on the outer surface of the piston rod body near the top of the left side, a T-block is slidably arranged inside the T-slot, a second semicircular sleeve is fixedly connected to the top of the T-block, and a bearing is placed between the inner surface wall of the second semicircular sleeve and the first semicircular sleeve.

[0006] Preferably, a round seat is sleeved between the inner surface walls of the bearing, and a connecting column is fixedly connected to the top center of the round seat.

[0007] Preferably, the outer surface of the connecting column slides through the outer surfaces of the first semicircular sleeve and the second semicircular sleeve and extends upward, and the top end of the connecting column is fixedly connected with a spherical connector.

[0008] Preferably, a through groove is provided inside the T-block, and a threaded hole is provided inside the piston rod body.

[0009] Preferably, a bolt is slidably disposed inside the through groove, and the end of the bolt is threadedly connected to the inner surface wall of the threaded hole.

[0010] Preferably, positioning holes are provided at positions near the four corners on the left surface of the first semicircular sleeve, and positioning columns are fixedly connected at positions near the four corners on the right surface of the second semicircular sleeve.

[0011] Preferably, the positioning hole and the positioning column are plug-fitted and connected, and the T-block and the T-slot are plug-fitted and connected.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. In the utility model, when the piston rod body and the spherical connector are connected, the bearing sleeve is placed outside the round seat and then inserted into the first semicircular sleeve, and then the T-block at the bottom of the second semicircular sleeve is inserted into the T-slot and a bolt is passed through the through slot and then threadedly connected with the threaded hole. At this time, the first semicircular sleeve and the second semicircular sleeve will wrap the round seat and the bearing inside, thereby completing the connection between the piston rod body and the spherical connector. The steps are reversed when dismantling, which solves the problem that the welded ball-head piston rod cannot be repaired and the ball-head piston rod with threaded connection has low reliability, and has high practicality.

[0014] 2. In the utility model, when the first semicircular sleeve and the second semicircular sleeve are combined, the positioning column on the second semicircular sleeve will be synchronously inserted into the positioning hole on the surface of the first semicircular sleeve, so that when the spherical connector is subjected to axial force, the first semicircular sleeve and the second semicircular sleeve will be subjected to force at the same time, thereby improving the connection strength between the spherical connector and the piston rod body and having higher reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional diagram of a ball-end type piston rod is provided for the utility model;

[0016] Figure 2 A front view of a ball-head type piston rod is provided for the utility model;

[0017] Figure 3 A partial structural cross-sectional view of a ball-end type piston rod is provided for the utility model;

[0018] Figure 4 The utility model provides a partial structural development diagram of a ball-end type piston rod.

[0019] Legend: 1. Piston rod body; 11. T-slot; 12. Threaded hole; 2. First semicircular sleeve; 21. Positioning hole; 3. T-block; 31. Through slot; 32. Bolt; 4. Second semicircular sleeve; 41. Positioning column; 5. Spherical connector; 51. Connecting column; 52. Round seat; 53. Bearing. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0022] Embodiment 1, as Figure 1-Figure 4 As shown, the utility model provides a ball-head type piston rod, comprising a piston rod body 1, a first semicircular sleeve 2 is fixedly connected to the top of the piston rod body 1 near the right side, a T-slot 11 is provided on the outer surface of the piston rod body 1 near the top of the left side, a T-block 3 is slidably arranged inside the T-slot 11, a second semicircular sleeve 4 is fixedly connected to the top of the T-block 3, a bearing 53 is placed between the inner surface wall of the second semicircular sleeve 4 and the first semicircular sleeve 2, a round seat 52 is sleeved between the inner surface walls of the bearing 53, a connecting column 51 is fixedly connected to the top center of the round seat 52, the outer surface of the connecting column 51 slides through the outer surfaces of the first semicircular sleeve 2 and the second semicircular sleeve 4 and extends upward, a spherical connector 5 is fixedly connected to the top of the connecting column 51, a through groove 31 is provided inside the T-block 3, a threaded hole 12 is provided inside the piston rod body 1, a bolt 32 is slidably arranged inside the through groove 31, and the end of the bolt 32 is threadedly connected to the inner surface wall of the threaded hole 12.

[0023] The effect achieved by the entire embodiment 1 is that when the piston rod body 1 and the spherical connector 5 in the device are connected, the bearing 53 is first sleeved on the outside of the round seat 52 below the spherical connector 5, and then the round seat 52 sleeved with the bearing 53 is inserted into the interior of the first semicircular sleeve 2, and then the T-block 3 at the bottom of the second semicircular sleeve 4 is aligned with the T-slot 11 on the surface of the piston rod body 1 and the second semicircular sleeve 4 is slid to the right. When the T-block 3 completely slides into the T-slot 11, the second semicircular sleeve 4 and the first semicircular sleeve 2 will be completely fitted, and the round seat 52 and the bearing 53 are wrapped inside, and the spherical connector 5 is connected through the connecting column 51. At the top of the piston rod body 1, the bolt 32 is finally passed through the through groove 31 and then tightened so that its end is threadedly connected to the threaded hole 12 to complete the connection between the piston rod body 1 and the spherical connector 5. The steps are reversed when removing. This solves the problem that the welded ball-head piston rod cannot be repaired and the problem that the ball-head piston rod with threaded connection has low reliability. It has high practicality. In addition, by arranging a bearing 53 on the outside of the round seat 52, the sliding friction between the round seat 52 and the first semicircular sleeve 2 and the second semicircular sleeve 4 is converted into rolling friction, so that the spherical connector 5 can rotate horizontally more smoothly and with less friction damage.

[0024] Embodiment 2, as Figure 1-Figure 4 As shown, positioning holes 21 are provided on the left surface of the first semicircular sleeve 2 near the four corners, and positioning columns 41 are fixedly connected to the right surface of the second semicircular sleeve 4 near the four corners. The positioning holes 21 and the positioning columns 41 are plug-in connected, and the T-block 3 and the T-slot 11 are plug-in connected.

[0025] The effect achieved by the entire embodiment 2 is that when the first semicircular sleeve 2 and the second semicircular sleeve 4 are combined, the positioning column 41 on the second semicircular sleeve 4 will be synchronously inserted into the positioning hole 21 on the surface of the first semicircular sleeve 2, so that when the spherical connector 5 is subjected to axial force, the first semicircular sleeve 2 and the second semicircular sleeve 4 will be subjected to force at the same time, thereby improving the connection strength between the spherical connector 5 and the piston rod body 1, and the reliability is higher.

[0026] Working principle: When the piston rod body 1 and the spherical connector 5 in the device are connected, the bearing 53 is first sleeved on the outside of the round seat 52 below the spherical connector 5, and then the round seat 52 with the bearing 53 is inserted into the first semicircular sleeve 2, and then the T-block 3 at the bottom of the second semicircular sleeve 4 is aligned with the T-slot 11 on the surface of the piston rod body 1 and the second semicircular sleeve 4 is slid to the right. When the T-block 3 completely slides into the T-slot 11, the second semicircular sleeve 4 and the first semicircular sleeve 2 will fit completely, and the round seat 52 and the bearing 53 will be wrapped inside, and the spherical connector 5 is connected to the top of the piston rod body 1 through the connecting column 51, and finally the bolt 32 is passed through The groove 31 is then rotated and tightened to make its end portion and the threaded hole 12 threadedly connected to complete the connection between the piston rod body 1 and the spherical connector 5. The steps are reversed when removing, which solves the problems that the welded ball-head piston rod cannot be repaired and the threaded ball-head piston rod has low reliability. It has high practicality. In addition, when the first semicircular sleeve 2 and the second semicircular sleeve 4 are combined, the positioning column 41 on the second semicircular sleeve 4 will be synchronously inserted into the positioning hole 21 on the surface of the first semicircular sleeve 2, so that when the spherical connector 5 is subjected to axial force, the first semicircular sleeve 2 and the second semicircular sleeve 4 will be subjected to force at the same time, thereby improving the connection strength between the spherical connector 5 and the piston rod body 1, and having high reliability.

[0027] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A ball-end type piston rod, comprising a piston rod body (1), characterized in that: A first semicircular sleeve (2) is fixedly connected to the top of the piston rod body (1) near the right side, a T-shaped slot (11) is provided on the outer surface of the piston rod body (1) near the top of the left side, a T-shaped block (3) is slidably arranged inside the T-shaped slot (11), a second semicircular sleeve (4) is fixedly connected to the top of the T-shaped block (3), and a bearing (53) is placed between the inner surface wall of the second semicircular sleeve (4) and the first semicircular sleeve (2).

2. The ball-end type piston rod according to claim 1, characterized in that: A round seat (52) is sleeved between the inner surface walls of the bearing (53), and a connecting column (51) is fixedly connected to the center of the top of the round seat (52).

3. The ball-end type piston rod according to claim 2, characterized in that: The outer surface of the connecting column (51) slides through the outer surfaces of the first semicircular sleeve (2) and the second semicircular sleeve (4) and extends upwards, and the top end of the connecting column (51) is fixedly connected to a spherical connecting head (5).

4. The ball-end type piston rod according to claim 3, characterized in that: A through groove (31) is provided inside the T-block (3), and a threaded hole (12) is provided inside the piston rod body (1).

5. The ball-end type piston rod according to claim 4, characterized in that: A bolt (32) is slidably disposed inside the through groove (31), and the end of the bolt (32) is threadedly connected to the inner surface wall of the threaded hole (12).

6. The ball-end type piston rod according to claim 5, characterized in that: Positioning holes (21) are provided on the left surface of the first semicircular sleeve (2) near the four corners, and positioning columns (41) are fixedly connected to the right surface of the second semicircular sleeve (4) near the four corners.

7. The ball-end type piston rod according to claim 6, characterized in that: The positioning hole (21) and the positioning column (41) are plug-in connected, and the T-shaped block (3) and the T-shaped slot (11) are plug-in connected.

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