Dismounting clamp for elastic cylindrical pin of valve handle
By designing an elastic cylindrical pin removal fixture for valve handles, an efficient and safe disassembly process is achieved by using the coordination of the guide rod and the spring, and the problems of disassembly difficulties and damage to the handles in the prior art are solved.
Patent Information
- Application Number
- CN202421624164.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-10
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-07-10
AI Technical Summary
In the prior art, the elastic cylindrical pin of the valve handle is difficult to disassemble, is inefficient and is prone to damage the handle, resulting in inconvenient maintenance.
A valve handle elastic cylindrical pin removal fixture is designed, including a base, spring, top plate, guide rod, pressure head and top rod. Through the cooperation of the guide rod and spring, the automatic reset of the top plate and the precise movement of the pressure head are achieved, ensuring the accurate removal of the top rod.
Improves the efficiency of valve handle assembly replacement, avoids handle damage, and significantly facilitates the maintenance process.
Smart Images
Figure CN222831111U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of valve handle maintenance, in particular to a valve handle elastic cylindrical pin disassembly fixture. Background Art
[0002] The handle of the toggle handle valve is fixed with an elastic cylindrical pin. After long-term use, the valve head sealing surface is prone to leakage and needs to be returned to the factory for repair and replacement of the valve stem assembly. When replacing the assembly, the handle needs to be removed, and the elastic cylindrical pin must be removed to remove the handle. Since the elastic cylindrical pin is installed by force through deformation, it is relatively difficult to remove. At present, the removal is basically done by knocking with a thimble and a hammer, which has low disassembly efficiency and is easy to damage the handle during disassembly, making maintenance extremely inconvenient. Utility Model Content
[0003] The utility model aims to provide a valve handle elastic cylindrical pin disassembly fixture, which solves the technical problems of low efficiency in replacing valve stem components and damage to the handle pointed out in the background technology.
[0004] To achieve the above-mentioned purpose, the utility model provides a valve handle elastic cylindrical pin disassembly fixture, including a base, a spring, a top plate, a guide rod, a pressure head, and a push rod, wherein the guide rod is connected at both ends of the base, the top plate is arranged on the guide rod, the spring is arranged between the base and the top plate, the pressure head is arranged on the top plate, the push rod is arranged below the pressure head, and a first through hole aligned with the push rod is arranged on the base. Under the action of external force, the pressure head makes a reciprocating motion in the vertical direction relative to the base.
[0005] Furthermore, a guide seat is provided between the pressure head and the top plate.
[0006] Furthermore, a positioning block is provided on the base, and a second through hole aligned with the ejector rod is provided on the positioning block.
[0007] Compared with the prior art, the beneficial effect of the utility model is that a guide rod is arranged on the base, which limits the pressure head on the top plate to move in the vertical direction, thereby ensuring the accuracy of the top rod and preventing the top rod from damaging the handle; a spring is arranged between the base and the top plate to realize automatic resetting of the top plate, thereby improving maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 It is a schematic diagram of the structure of the utility model, showing the state before the pressure head is pressed down;
[0009] Figure 2 It is a schematic diagram of the structure of the utility model, showing the state after the pressure head is pressed down;
[0010] Figure 3This is a schematic diagram of another structure of the utility model, showing the state before the pressure head is pressed down;
[0011] Figure 4 This is a schematic diagram of another structure of the utility model, showing the state after the pressure head is pressed down;
[0012] In the figure, 1, base; 2, screw; 3, positioning block; 4, spring; 5, top plate; 6, guide rod; 7, pressure head; 8, push rod; 9, guide seat; 10, valve handle; 11, elastic cylindrical pin; 12, first through hole; 13, second through hole. DETAILED DESCRIPTION
[0013] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Generally, the components of the embodiment of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0014] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0015] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0016] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "top", "bottom", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships that are usually placed when the utility model is used. They 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 direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.
[0017] In addition, the terms "horizontal" and "vertical" do not mean that the components must be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0018] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it 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 indirectly connected 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.
[0019] Some implementation methods of the present utility model are described in detail below in conjunction with the accompanying drawings.
[0020] like Figures 1-2 As shown, the valve handle elastic cylindrical pin disassembly fixture described in the utility model includes a base 1, a spring 4, a top plate 5, a guide rod 6, a pressure head 7, and a push rod 8. The base 1 is provided with connecting holes at both ends, and a positioning platform is provided in the middle. The guide rod 6 is arranged in the connecting hole of the base 1 and is fastened by a screw 2. The top plate 5 is provided with guide holes that cooperate with the guide rod 6 at both ends, and the top plate 5 can move up and down in the vertical direction along the guide rod 6. The spring 4 is arranged between the base 1 and the top plate 5. Preferably but not necessarily, the spring 4 is sleeved on the guide rod 6, and the spring 4 enables the top plate 5 to achieve automatic reset. A pressure head 7 is provided in the middle of the top plate 5, and a push rod 8 is threadedly connected below the pressure head. The push rod 8 is made of high-strength and wear-resistant materials, such as S17400 material (heat treatment grade H900, yield strength ≥1170MPa), and a first through hole 12 aligned with the push rod 8 is provided on the positioning platform of the base 1.
[0021] The working principle of the utility model is as follows: the valve handle 10 is placed on the positioning platform in the middle of the base 1, so that the pin hole of the valve handle 10 faces the vertical direction. At this time, the pin hole of the valve handle 10 is just aligned with the push rod 8 and the first through hole 12. Press the pressure head 7 downward, the pressure head 7 drives the top plate 5 to move downward as a whole, and the top plate 5 compresses the spring 4. The push rod 8 on the pressure head 7 pushes out the elastic cylindrical pin 11 in the valve handle 10 and drops from the first through hole 12 of the base 1. After the pressure on the pressure head 7 is eliminated, the spring 4 is reset, and the top plate 5 is pushed to the initial position. The valve handle 10 can be removed for the next disassembly.
[0022] In the preferred solution, a guide seat 9 may be provided between the pressure head 7 and the top plate 5, and a positioning block 3 may be provided on the base 1. Figure 3-4The positioning block 3 is provided with a second through hole 13, and when working, the second through hole 13 is aligned with the push rod 8. The guide seat 9 and the positioning block 3 can be replaced with a valve handle of a matching specification according to the size of the valve handle of the elastic cylindrical pin as needed, and the pressure head 7 and the push rod 8 can also be replaced, which greatly improves the processing range. In addition, semi-automation can be achieved by connecting the pressure head 7 to a pneumatic or electric pressure source, which improves processing efficiency and reduces labor intensity.
[0023] The above describes the basic principles and advantages of the utility model. For those skilled in the art, the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, by reading this specification, those skilled in the art can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. Without departing from the concept of the utility model, any obvious replacement is within the scope of protection of the utility model.
Claims
1. A valve handle elastic cylindrical pin removal fixture, characterized in that: The invention comprises a base (1), a spring (4), a top plate (5), a guide rod (6), a pressure head (7), and a push rod (8); the guide rod (6) is connected to both ends of the base (1); the top plate (5) is arranged on the guide rod (6); the spring (4) is arranged between the base (1) and the top plate (5); the pressure head (7) is arranged on the top plate (5); the push rod (8) is arranged below the pressure head (7); a first through hole (12) aligned with the push rod (8) is arranged on the base (1); and the pressure head (7) performs a reciprocating motion in a vertical direction relative to the base (1) under the action of an external force.
2. A valve handle elastic cylindrical pin removal fixture according to claim 1, characterized in that: A guide seat (9) is provided between the pressure head (7) and the top plate (5).
3. A valve handle elastic cylindrical pin removal fixture according to claim 2, characterized in that: The base (1) is provided with a positioning block (3), and the positioning block (3) is provided with a second through hole (13) aligned with the top rod (8).