High-wear-resistance square two-way sealing piston for stand column jack

Abstract

The utility model relates to the technical field of two-way pistons, in particular to a high-abrasion-resistance square two-way sealing piston for a stand column jack. According to the technical scheme, the elastic body comprises an elastic body, check rings are installed at the two ends of the elastic body in a sliding mode, one side of the elastic body is sleeved with a wear-resisting ring, the elastic body further comprises a limiting mechanism, the limiting mechanism is arranged on the elastic body and used for limiting the check rings, and the limiting mechanism comprises limiting grooves fixedly formed in the check rings. Limiting blocks are installed at the two ends of the elastic body in a sliding mode, one end of each limiting block is a tangent plane, one end of each limiting block is located in the corresponding limiting groove, and a reset mechanism for driving the limiting blocks to move is arranged in the elastic body. The check ring is limited, the poor sealing effect caused by falling of the check ring is avoided, disassembly is convenient, and operation is easy and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of bidirectional pistons, in particular to a highly wear-resistant square bidirectional sealing piston for a column jack. Background Art

[0002] A two-way sealing piston is a sealing device that is usually used between the piston and the cylinder in a hydraulic system to prevent hydraulic oil leakage and maintain pressure. These seals are usually made of elastic materials and can effectively seal during the reciprocating motion of the piston.

[0003] Before using the two-way piston, retaining rings need to be installed on both ends of the elastomer. However, the wear-resistant rings will be squeezed during the movement of the piston, and the wear-resistant rings will push the retaining rings at both ends of the elastomer to slide, causing the retaining rings to fall off, reducing the sealing performance and affecting normal use. Therefore, the present application proposes a highly wear-resistant square two-way sealing piston for a column jack. Summary of the invention

[0004] The utility model aims to solve the problem that a retaining ring is easy to fall off in the background technology and proposes a highly wear-resistant square bidirectional sealing piston for a column jack.

[0005] The technical solution of the utility model is: a highly wear-resistant square bidirectional sealing piston for a column jack, comprising an elastic body, retaining rings are slidably mounted on both ends of the elastic body, a wear-resistant ring is sleeved on one side of the elastic body, and also includes:

[0006] A limiting mechanism is arranged on the elastic body and is used to limit the retaining ring.

[0007] Optionally, the limiting mechanism includes a limiting groove fixedly opened in the retaining ring, limiting blocks are slidably installed at both ends of the elastomer, one end of the limiting block is set as a section, one end of the limiting block is located in the limiting groove, and a reset mechanism is provided in the elastomer to drive the limiting block to move.

[0008] Optionally, the reset mechanism includes a connecting plate fixedly installed at one end of the limit block, an installation cavity is opened in the elastomer, one end of the installation cavity passes through the inner wall of the elastomer, springs are fixedly installed between the two ends of the connecting plate and the installation cavity, and a handle is fixedly installed at one end of the connecting plate.

[0009] Optionally, sliding grooves are provided on both sides of the elastic body, the limiting blocks are located in the sliding grooves, and the limiting blocks are communicated with the installation cavity.

[0010] Optionally, a connecting rod is fixedly mounted on one end of the limit block, and the connecting rod is fixedly connected to the connecting plate.

[0011] Optionally, a fixing rod is fixedly mounted on one end of the connecting plate, and the fixing rod is fixedly connected to the handle.

[0012] Compared with the prior art, the utility model has the following beneficial technical effects:

[0013] 1. By sliding the retaining ring on the elastic body, as the retaining ring continues to descend, the retaining ring squeezes the cross-section of the limit block, and squeezes the limit block into the slide groove. As the limit groove moves to the same level as the limit block, the spring rebounds, driving the limit block to move into the limit groove, limiting the retaining ring, thereby achieving the limitation of the retaining ring, improving the sealing effect, and improving the sealing stability.

[0014] 2. By pulling the handle, the handle drives the limit rod to move out of the limit groove, slide the retaining ring, move the retaining ring out of the surface of the elastic body, release the handle, and the spring rebound drives the limit block to reset, thereby realizing convenient disassembly of the retaining ring and easy operation.

[0015] The utility model realizes the position limiting of the retaining ring, avoids the retaining ring from falling off and causing poor sealing effect, and is convenient to disassemble and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A structural schematic diagram of an embodiment of the utility model is given;

[0017] Figure 2 A schematic cross-sectional view of an embodiment of the utility model is given;

[0018] Figure 3 for Figure 2 Schematic diagram of the local enlarged structure at point A in the middle.

[0019] Figure numerals: 1. elastic body; 2. retaining ring; 3. limiting groove; 4. wear-resistant ring; 5. slide groove; 6. limiting block; 7. connecting plate; 8. installation cavity; 9. spring; 10. connecting rod; 11. handle; 12. fixing rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Example

[0024] like Figure 1-2 As shown, the high wear-resistant square bidirectional sealing piston for the column jack proposed by the utility model includes an elastomer 1, and retaining rings 2 are slidably installed at both ends of the elastomer 1 for fixing the elastomer 1 to prevent the elastomer 1 from moving up and down. A wear-resistant ring 4 is sleeved on one side of the elastomer 1 to extend the service life of the elastomer 1. It also includes a limiting mechanism, which is arranged on the elastomer 1 for limiting the retaining ring 2 to prevent the elastomer 1 from squeezing the wear-resistant ring 4 during movement, so that the wear-resistant ring 4 squeezes the retaining ring 2 and causes the retaining ring 2 to fall off.

[0025] like Figure 2-3 As shown, the present embodiment also includes a limiting mechanism, which includes a limiting groove 3 fixedly opened in the retaining ring 2, and limiting blocks 6 are slidably installed at both ends of the elastomer 1. One end of the limiting block 6 is a cut surface setting, and one end of the limiting block 6 is located in the limiting groove 3. The retaining ring 2 is slidably installed on the elastomer 1. As the retaining ring 2 continues to descend, the limiting block 6 in the elastomer 1 slides into the limiting groove 3 to limit the retaining ring 2. A reset mechanism is provided in the elastomer 1 to drive the limiting block 6 to move, so as to facilitate the disassembly of the retaining ring 2.

[0026] like Figure 2-3As shown, the present embodiment also includes a reset mechanism, which includes a connecting plate 7 fixedly installed at one end of the limit block 6, an installation cavity 8 is opened in the elastomer 1, one end of the installation cavity 8 passes through the inner wall of the elastomer 1, and springs 9 are fixedly installed between the two ends of the connecting plate 7 and the installation cavity 8. A handle 11 is fixedly installed at one end of the connecting plate 7. When the retaining ring 2 needs to be disassembled, the handle 11 is pulled, and the handle 11 drives the limit block 6 to move out of the limit groove 3. The retaining ring 2 can be pulled upward to cancel the limit on the retaining ring 2, and the limit block 6 can be reset by releasing the handle 11.

[0027] like Figure 2-3 As shown, slide grooves 5 are opened on both sides of the elastomer 1, and the limit blocks 6 are located in the slide grooves 5. The limit blocks 6 are connected to the installation cavity 8. A connecting rod 10 is fixedly installed at one end of the limit block 6, and the connecting rod 10 is fixedly connected to the connecting plate 7. A fixing rod 12 is fixedly installed at one end of the connecting plate 7, and the fixing rod 12 is fixedly connected to the handle 11.

[0028] Working principle: when the retaining ring 2 needs to be installed on the elastomer 1, the retaining ring 2 is sleeved onto the elastomer 1 along the edge of the elastomer 1. As the retaining ring 2 continues to descend, the retaining ring 2 squeezes the limit block 6, and the limit block 6 drives the spring 9 to deform. When the limit block 6 and the limit groove 3 are at the same horizontal height, the spring 9 rebounds, driving the limit block 6 to move into the limit groove 3 to limit the retaining ring 2. When the retaining ring 2 needs to be removed, the handle 11 is pulled, and the handle 11 drives the limit block 6 to move out of the limit groove 3. The retaining ring 2 can be pulled upward to cancel the limitation on the retaining ring 2, thereby realizing the limitation of the retaining ring and avoiding the poor sealing effect caused by the fall of the retaining ring. The disassembly is convenient and the operation is easy.

[0029] The above-mentioned specific embodiments are only several optional embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A highly wear-resistant square bidirectional sealing piston for a column jack, comprising an elastic body (1), retaining rings (2) are slidably mounted on both ends of the elastic body (1), and a wear-resistant ring (4) is sleeved on one side of the elastic body (1), characterized in that: Also includes: A limiting mechanism is arranged on the elastic body (1) and is used to limit the retaining ring (2).

2. The highly wear-resistant square bidirectional sealing piston for column jack according to claim 1 is characterized in that: The limiting mechanism comprises a limiting groove (3) fixedly opened in the retaining ring (2), limiting blocks (6) are slidably installed at both ends of the elastic body (1), one end of the limiting block (6) is arranged as a cut surface, one end of the limiting block (6) is located in the limiting groove (3), and a reset mechanism for driving the limiting block (6) to move is arranged in the elastic body (1).

3. The highly wear-resistant square bidirectional sealing piston for column jack according to claim 2 is characterized in that: The reset mechanism comprises a connecting plate (7) fixedly mounted on one end of the limit block (6); a mounting cavity (8) is provided in the elastic body (1); one end of the mounting cavity (8) passes through the inner wall of the elastic body (1); springs (9) are fixedly mounted between the two ends of the connecting plate (7) and the mounting cavity (8); and a handle (11) is fixedly mounted on one end of the connecting plate (7).

4. The highly wear-resistant square bidirectional sealing piston for column jack according to claim 2, characterized in that: Slide grooves (5) are provided on both sides of the elastic body (1), the limit block (6) is located in the slide groove (5), and the limit block (6) is communicated with the installation cavity (8).

5. The highly wear-resistant square bidirectional sealing piston for column jack according to claim 2, characterized in that: A connecting rod (10) is fixedly mounted on one end of the limit block (6), and the connecting rod (10) is fixedly connected to the connecting plate (7).

6. The highly wear-resistant square bidirectional sealing piston for column jack according to claim 3, characterized in that: A fixing rod (12) is fixedly mounted on one end of the connecting plate (7), and the fixing rod (12) is fixedly connected to the handle (11).

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