Novel special seal for conical piston

Abstract

The utility model discloses a novel special seal for a conical piston. The novel special seal comprises a base, a conical piston is placed in an installation groove formed in the middle of the upper end of the base, the outer arc face of the conical piston makes contact with the inner wall of the installation groove, a sealing piece is arranged at the lower end of the conical piston, and the sealing piece makes contact with the inner wall of the installation groove. A groove is formed in the edge of the top wall of the connecting groove, the upper surface of the sealing piece makes contact with the inner wall of the groove, the gland is placed in the connecting groove, the upper surface of the gland makes contact with the top wall of the connecting groove, connecting threaded holes are formed in the lower end of the gland, and the upper end of the gland makes contact with the lower surface of the sealing piece. According to the novel special seal for the conical piston, the conical piston is split, and then the stable effect of a sealing piece is achieved through positioning of the gland, so that the sealing piece is prevented from being washed away by fluid, and the fluid in equipment is prevented from leaking.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic equipment, and particularly relates to a special seal for a new type of conical piston. Background Technique

[0002] A conical piston is a part in the shape of a cone or frustum of a cone, usually arranged inside a hydraulic device. Its main function is to control the compression and output of the fluid in the oil cylinder. The outer shape design of the conical piston enables it to adapt to the space inside the oil cylinder and match the shape inside the oil cylinder, thus ensuring the normal operation of the oil cylinder.

[0003] When the conical piston is working, the driving device drives the conical piston to move up and down inside the oil cylinder, thereby changing the size of the space inside the oil cylinder, and further realizing the compression of the fluid. When the conical piston moves downward, it reduces the space inside the oil cylinder, thereby increasing the pressure of the fluid.

[0004] During the use of the existing conical piston, in order to improve the sealing effect, a rectangular groove is added to the contact surface between the conical piston and the base, and then an O-ring is installed in the rectangular groove. However, when the conical piston moves upward to open, the O-ring will be washed away by the fluid, finally resulting in the leakage of the fluid inside the device, thus affecting the normal operation of the device. For this reason, we propose a special seal for a new type of conical piston. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to overcome the existing defects, provide a special seal for a new type of conical piston, disassemble the conical piston, and then achieve a stable effect of the seal by the positioning of the gland, avoid the seal being washed away by the fluid, and prevent the fluid inside the device from leaking, which can effectively solve the problems in the background technique.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a special seal for a new type of conical piston, including a base.

[0007] Base: A conical piston is placed in the installation groove provided in the middle of the upper end of the base. The outer arc surface of the conical piston contacts the inner wall of the installation groove. A seal is provided at the lower end of the conical piston, and the seal contacts the inner wall of the installation groove. The conical piston is disassembled, and then the positioning of the gland is used to achieve a stable effect of the seal, avoid the seal being washed away by the fluid, and prevent the fluid inside the device from leaking.

[0008] Furthermore, it further includes a connection groove. The connection groove is arranged on the lower side of the outer arc surface of the conical piston. A groove is provided at the edge of the top wall of the connection groove. The upper surface of the seal contacts the inner wall of the groove, providing sufficient space for installing the seal.

[0009] Further, it also includes a gland. The gland is placed inside the connection groove. The upper surface of the gland contacts the top wall of the connection groove. Threaded connection holes are respectively provided at the lower end of the gland. The upper end of the gland contacts the lower surface of the seal, and can tightly fix the seal.

[0010] Further, it also includes bolts. The bolts respectively pass through the threaded connection holes and are threadedly connected with the threaded holes provided in the middle of the top wall of the connection groove, and can install and fix the gland.

[0011] Further, the surface of the gland in contact with the connection groove is an inclined surface. The inclined surface design can ensure closer contact between the gland and the connection groove, reducing the possibility of leakage.

[0012] Further, the contact surface of the seal with the inner wall of the installation groove is an arc surface. The arc-shaped contact surface can better fit the shape of the sealing surface, reducing the gap between the sealing surfaces.

[0013] Further, the seal is a rubber gasket. The rubber gasket has good sealing performance, wear resistance and corrosion resistance. The rubber gasket can be made into various shapes and sizes to adapt to different sealing requirements. When in use, it can prevent fluid leakage through its elasticity and sealing performance.

[0014] Compared with the prior art, the beneficial effects of the present utility model are: The special seal for the new type of conical piston has the following advantages:

[0015] The upper surface of the gland fits the top wall of the connection groove. At this time, the upper end of the gland contacts the lower surface of the seal, so as to limit and fix the seal through the gland. At this time, the operator presses the gland to prevent the gland from separating from the seal, and then the bolt passes through the gland and is connected with the connection groove, thereby realizing the tight fixing of the gland. The conical piston is disassembled, and then the positioning of the gland enables the seal to achieve a stable effect, avoiding the seal being washed away by the fluid, solving the problem that the sealing effect is affected because the O-ring is washed away by the fluid when the conical piston moves upward to open, preventing the fluid in the equipment from leaking, and ensuring the normal operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 is a schematic front cross-sectional plane structural diagram of the present utility model;

[0018] Figure 3 is a schematic structural diagram of the seal of the present utility model;

[0019] Figure 4 is a schematic front cross-sectional plane structural diagram of the seal of the present utility model.

[0020] In the figure: 1 conical piston, 2 seal, 3 gland, 4 bolt, 5 base, 6 connection groove. Specific implementation mode

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present invention.

[0022] Please refer to Figures 1-4 , this embodiment provides a technical solution: a special seal for a new type of conical piston, including a base 5;

[0023] Base 5: A conical piston 1 is placed in the installation groove provided in the middle of the upper end thereof. The outer arc surface of the conical piston 1 contacts the inner wall of the installation groove. A seal 2 is provided at the lower end of the conical piston 1. The seal 2 contacts the inner wall of the installation groove. During the movement of the conical piston 1, the conical piston 1 contacts the inner wall of the equipment through the seal 2 to form an effective seal, prevent the fluid in the equipment from leaking, and ensure the normal operation of the equipment.

[0024] Among them: It also includes a connection groove 6. The connection groove 6 is provided on the lower side of the outer arc surface of the conical piston 1. A groove is provided at the edge of the top wall of the connection groove 6. The upper surface of the seal 2 contacts the inner wall of the groove. When the special seal for the new type of conical piston is in use, the seal 2 is placed inside the connection groove 6 so that the upper surface of the seal 2 contacts the inner wall of the groove, providing sufficient space for installing the seal 2.

[0025] Among them: It also includes a gland 3. The gland 3 is placed inside the connection groove 6. The upper surface of the gland 3 contacts the top wall of the connection groove 6. Connection threaded holes are respectively provided at the lower end of the gland 3. The upper end of the gland 3 contacts the lower surface of the seal 2. Install the gland 3 so that the upper surface of the gland 3 fits with the top wall of the connection groove 6. At this time, the upper end of the gland 3 contacts the lower surface of the seal 2, thereby limiting and fixing the seal 2 through the gland 3.

[0026] Among them: It also includes bolts 4. The bolts 4 respectively pass through the connection threaded holes and are threadedly connected to the threaded holes provided in the middle of the top wall of the connection groove 6. The bolt 5 passes through the gland 3 to connect with the connection groove 6, thereby realizing the top-tightening and fixing of the gland 3.

[0027] Among them: The surface of the gland 3 in contact with the connection groove 6 is an inclined surface. The inclined surface design can ensure closer contact between the gland 3 and the connection groove 6, reducing the possibility of leakage.

[0028] Among them: The contact surface between the seal 2 and the inner wall of the installation groove is an arc surface. The arc-shaped contact surface can better fit the shape of the sealing surface, reduce the gap between the sealing surfaces, thereby improving the sealing effect. During the sealing process, the arc-shaped contact surface can distribute the sealing force more evenly, avoiding leakage problems caused by excessive or insufficient local pressure.

[0029] Among them: The seal 2 is a rubber gasket. The rubber gasket has good sealing performance, wear resistance and corrosion resistance. The rubber gasket can be made into various shapes and sizes to meet different sealing requirements. During use, its elasticity and sealing performance can be used to prevent fluid leakage.

[0030] The working principle of a new type of special seal for a conical piston provided by the present utility model is as follows: When the new type of special seal for a conical piston is in use, the seal 2 is placed inside the connection groove 6, so that the seal 2 contacts the inner wall of the groove. Then, the gland 3 is installed, and the upper surface of the gland 3 is fitted with the top wall of the connection groove 6. At this time, the upper end of the gland 3 contacts the lower surface of the seal 2, so as to limit and fix the seal 2 through the gland 3. After that, the operator presses the gland 3 to prevent the gland 3 from separating from the seal 2. Then, the bolt 5 is passed through the gland 3 and connected to the connection groove 6, thereby realizing the tightening and fixing of the gland 3. During the movement of the conical piston 1, the conical piston 1 contacts the inner wall of the equipment through the seal 2 to form an effective seal.

[0031] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A new type of conical piston special seal, characterized by: including a base (5); Base (5): A conical piston (1) is placed in a mounting groove provided in the middle of the upper end thereof, the outer arc surface of the conical piston (1) contacts the inner wall of the mounting groove, and a sealing member (2) is provided at the lower end of the conical piston (1), and the sealing member (2) contacts the inner wall of the mounting groove.

2. A new type of tapered piston seal according to claim 1, characterized in that: It also includes a connecting groove (6), which is arranged on the lower side of the outer arc surface of the conical piston (1), and a groove is arranged at the edge of the top wall of the connecting groove (6), and the upper surface of the sealing member (2) contacts the inner wall of the groove.

3. A new type of tapered piston seal according to claim 2, characterized in that: It also includes a gland (3), which is placed inside the connecting groove (6), the upper surface of the gland (3) contacts the top wall of the connecting groove (6), the lower end of the gland (3) is respectively provided with connecting threaded holes, and the upper end of the gland (3) contacts the lower surface of the sealing member (2).

4. A new type of tapered piston seal according to claim 3, characterized in that: It also includes bolts (4), which pass through the connecting threaded holes and are threadedly connected to the threaded holes arranged in the middle of the top wall of the connecting groove (6).

5. The novel tapered piston seal according to claim 3 is characterized in that: The surface of the gland (3) in contact with the connection groove (6) is an inclined surface.

6. A new type of tapered piston seal according to claim 1, characterized in that: The contact surface between the sealing member (2) and the inner wall of the installation groove is a curved surface.

7. A new type of tapered piston seal according to claim 1, characterized in that: The sealing element (2) is a rubber sealing pad.

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