Totally-enclosed pneumatic supporting cylinder

Abstract

The utility model relates to the technical field of pneumatics, in particular to a full-closed type pneumatic supporting cylinder which comprises a supporting cylinder body and a supporting rod assembled on the supporting cylinder body, and the supporting rod movably penetrates through one end of the supporting cylinder body. The sealing ring is arranged on the inner wall of one end part, movably penetrating through the supporting cylinder main body, of the supporting rod. Through the unique structural design, including the matching among the W-shaped concave surface, the convex block, the inclined surface, the rectangular concave surface and the groove of the supporting cylinder main body, the filling and sealing of a small gap between the supporting rod and the supporting cylinder main body under different working conditions are realized, so that the medium leakage is prevented, and the normal operation of the pneumatic supporting cylinder is ensured.

Description

Technical Field

[0001] The utility model relates to the field of pneumatic technology, and more specifically to a fully enclosed pneumatic support cylinder. Background Art

[0002] In pneumatic systems, pneumatic support cylinders are important actuators and are widely used in various automation equipment and production lines. The main function of pneumatic support cylinders is to clamp, position or support workpieces through changes in air pressure, thereby ensuring the stability and accuracy of the production process. However, in actual applications, the sealing performance of pneumatic support cylinders is often affected by many factors, such as air pressure fluctuations, temperature changes, mechanical vibrations, etc., which can lead to gas or liquid leakage, thus affecting the normal operation of pneumatic support cylinders and the stable operation of production lines.

[0003] Traditional pneumatic support cylinder sealing structures usually use simple O-rings or V-rings for sealing. Although these seals are simple in structure and easy to install, they often fail to meet the requirements of sealing performance in the face of complex and changing working environments. Especially under harsh conditions such as high pressure, high speed, and high temperature, traditional seals are prone to aging, wear, and deformation, resulting in sealing failure and even safety accidents. Utility Model Content

[0004] The purpose of the utility model is: in order to solve the above-mentioned technical problems, the utility model provides a fully enclosed pneumatic support cylinder, which adopts a unique sealing ring design to solve the problems existing in the sealing performance of the traditional pneumatic support cylinder, improve the sealing reliability of the pneumatic support cylinder, and ensure the stable operation of the pneumatic system.

[0005] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0006] The utility model proposes a fully enclosed pneumatic support cylinder, comprising a support cylinder body and a support rod assembled on the support cylinder body, the support rod movably passes through one end of the support cylinder body, and also includes a sealing ring:

[0007] The sealing ring is arranged on the inner wall of one end portion of the support rod movably penetrating the support cylinder body;

[0008] The outer wall of the sealing ring is set as a W-shaped concave surface;

[0009] A convex block is provided at one end of the sealing ring away from the support cylinder body, and the convex block is closely attached to the support rod;

[0010] The inner wall of the sealing ring and the inner wall of the protrusion are arranged in an inclined surface, and the connection between the inner wall of the sealing ring and the inner wall of the protrusion is arranged in an arc shape;

[0011] A rectangular concave surface is arranged at one end of the sealing ring away from the supporting cylinder body, and the rectangular concave surface is closely attached to the convex block.

[0012] As a preferred technical solution of the utility model, the thickness ratio of the sealing ring to the protrusion is 11:3, and the angle of the inclined surface with respect to the horizontal direction of the support rod is set to -3°.

[0013] As a preferred technical solution of the present invention, the hardness of the sealing ring is 90°±2° Shore hardness.

[0014] As a preferred technical solution of the utility model, the bottom surface of the rectangular concave surface concave toward the support cylinder body is arranged in an arc shape.

[0015] As a preferred technical solution of the utility model, the bottom end of the W-shaped concave surface is arranged in an arc shape.

[0016] As a preferred technical solution of the utility model, the surface of the projection is arranged in an arc shape.

[0017] As a preferred technical solution of the utility model, the inner wall of one end portion of the support rod movably passing through the support cylinder body is provided with a groove for accommodating a sealing ring.

[0018] A sealing ring is applicable to the above-mentioned pneumatic support cylinder, but is not limited to the pneumatic support cylinder.

[0019] A pneumatic support cylinder sealing structure is an assembly structure between the sealing ring of the fully enclosed pneumatic support cylinder and the support cylinder body and the support rod.

[0020] The beneficial effects of the utility model are as follows:

[0021] The utility model realizes filling and sealing of the tiny gap between the support rod and the support cylinder body under different working conditions through its unique structural design, including the cooperation between the W-shaped concave surface, the convex block, the inclined surface, the rectangular concave surface and the groove of the support cylinder body, thereby preventing medium leakage and ensuring the normal operation of the pneumatic support cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the utility model.

[0023] Figure 2 It is a schematic diagram of the cutaway structure of the sealing ring.

[0024] Figure 3 It is a three-dimensional structural schematic diagram of the sealing ring.

[0025] Figure numerals: 1-support cylinder body, 2-sealing ring, 21-inclined surface, 22-bump, 23-rectangular concave surface, 24-W-shaped concave surface, 3-support rod. DETAILED DESCRIPTION

[0026] like Figure 1-3As shown, the utility model proposes: The utility model proposes a fully enclosed pneumatic support cylinder, including a support cylinder body and a support rod assembled on the support cylinder body, the support rod movably passes through one end of the support cylinder body, and also includes a sealing ring:

[0027] The sealing ring is arranged on the inner wall of one end portion of the support rod movably penetrating the support cylinder body;

[0028] The outer wall of the sealing ring is set as a W-shaped concave surface;

[0029] A convex block is provided at one end of the sealing ring away from the support cylinder body, and the convex block is closely attached to the support rod;

[0030] The inner wall of the sealing ring and the inner wall of the protrusion are arranged in an inclined surface, and the connection between the inner wall of the sealing ring and the inner wall of the protrusion is arranged in an arc shape;

[0031] A rectangular concave surface is arranged at one end of the sealing ring away from the supporting cylinder body, and the rectangular concave surface is closely attached to the convex block.

[0032] The thickness ratio of the sealing ring to the bump is 11:3, and the angle of the inclined surface with respect to the horizontal direction of the support rod is set to -3°.

[0033] The hardness of the sealing ring is 90°±2° Shore hardness; its hardness enables the sealing ring to have a certain elasticity, so that it can deform appropriately when under pressure to adapt to the shape of the support rod, and also has a certain rigidity, so that it can maintain a stable sealing effect.

[0034] Wherein, the bottom surface of the rectangular concave surface concave toward the supporting cylinder body is arranged in an arc shape.

[0035] The bottom end of the W-shaped concave surface is arc-shaped.

[0036] Wherein, the surface of the convex block is arranged in an arc shape.

[0037] Among them, the inner wall of one end of the support rod that movably passes through the support cylinder body is provided with a groove for placing the sealing ring; its structural coordination enables the sealing ring to be positioned and installed more accurately, ensuring the consistency and reliability of the sealing effect.

[0038] A sealing ring is applicable to the above-mentioned pneumatic support cylinder, but is not limited to the pneumatic support cylinder.

[0039] A pneumatic support cylinder sealing structure is an assembly structure between the sealing ring of the fully enclosed pneumatic support cylinder and the support cylinder body and the support rod.

[0040] Working principle:

[0041] The W-shaped concave design of the seal ring enables it to deform more evenly when under pressure, thereby better filling and adapting to the tiny gap between the support rod and the support cylinder body. This design helps to maintain a stable sealing effect under various working conditions;

[0042] A lug is provided at one end of the sealing ring away from the support cylinder body. The lug is in close contact with the support rod. The inner wall of the lug and the inner wall of the sealing ring are arranged in an inclined surface, and the connection is arranged in an arc shape. This design enables the sealing ring to fit the support rod more closely when under pressure, forming a tighter seal. At the same time, the setting of the inclined surface also helps to better disperse and balance the force of the sealing ring under pressure, thereby maintaining the sealing effect;

[0043] A rectangular concave surface is provided at one end of the sealing ring away from the support cylinder body, and the rectangular concave surface is tightly attached to the protrusion. The design of the rectangular concave surface can further increase the contact area between the sealing ring and the support rod and improve the reliability of the seal. At the same time, the shape of the rectangular concave surface also helps the sealing ring to better deform and adapt to the shape of the support rod when it is under pressure.

[0044] In summary, the utility model, through its unique structural design, including the W-shaped concave surface, the protrusion, the inclined surface, the rectangular concave surface and the cooperation with the groove of the support cylinder body, realizes the filling and sealing of the tiny gap between the support rod and the support cylinder body under different working conditions, thereby preventing medium leakage and ensuring the normal operation of the pneumatic support cylinder.

[0045] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should be aware that the technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A fully enclosed pneumatic support cylinder, characterized in that: include: Support cylinder body; A support rod movably penetrates one end of the support cylinder body; A sealing ring is arranged on the inner wall of one end of the support rod that movably passes through the support cylinder body, wherein: The outer wall of the sealing ring is set as a W-shaped concave surface; The sealing ring is provided with a convex block at one end away from the supporting cylinder body, and the convex block is closely attached to the supporting rod; The inner wall of the sealing ring and the inner wall of the protrusion are arranged in an inclined surface, and the connection is arranged in an arc shape; The sealing ring is provided with a rectangular concave surface at one end away from the supporting cylinder body, and the rectangular concave surface is closely attached to the convex block.

2. A fully enclosed pneumatic support cylinder according to claim 1, characterized in that: The thickness ratio of the sealing ring to the protrusion is 11:3, and the angle of the inclined surface with respect to the horizontal direction of the support rod is set to -3°.

3. A fully enclosed pneumatic support cylinder according to claim 1 or 2, characterized in that: The hardness of the sealing ring is 90°±2° Shore hardness.

4. The fully enclosed pneumatic support cylinder according to claim 1, characterized in that: The bottom surface of the rectangular concave surface concave toward the supporting cylinder body is arranged in an arc shape.

5. A fully enclosed pneumatic support cylinder according to claim 1, characterized in that: The bottom end of the W-shaped concave surface is arranged in an arc shape.

6. A fully enclosed pneumatic support cylinder according to claim 1, characterized in that: The surface of the convex block is arranged in an arc shape.

7. A fully enclosed pneumatic support cylinder according to claim 1, characterized in that: The inner wall of one end of the support rod movably penetrates the support cylinder body and is provided with a groove for accommodating a sealing ring.

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