Tool for assembling valve
By designing and assembling valve tooling, and using the combination of components such as positioning seats, placement grooves, and positioning rods for clamping and pressing, the problem of complex and cumbersome valve assembly is solved, the assembly efficiency and sealing performance are improved, and the service life of the valve is extended.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG NANFANG FLUID TECH CO LTD
- Filing Date
- 2025-02-07
- Publication Date
- 2026-04-21
AI Technical Summary
In existing technologies, valve assembly requires multiple parts for fixation, resulting in complex, cumbersome, and inefficient assembly.
A tooling for assembling valves has been designed, including a positioning seat, a placement groove, a positioning rod, a valve body, a valve core, a spring, a limit post, a sealing mechanism, and a fixing mechanism. By combining and clamping these components, multiple parts can be fixed simultaneously, improving assembly efficiency. The sealing mechanism also improves sealing performance and service life.
It enables efficient assembly of valve components, improves assembly efficiency and sealing performance, extends valve service life, and simplifies the assembly process.
Smart Images

Figure CN224144470U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of valve tooling, and more particularly to a tooling for assembling valves. Background Technology
[0002] With the development of China's railways, the need to improve the dynamic performance of railway passenger cars is urgent. As a crucial component affecting their dynamic performance, the quality of valve installation directly impacts the normal operation of railway passenger cars. For valve manufacturing companies, valve assembly is a vital step in the production process. To facilitate valve assembly, it is necessary to effectively secure the valve before maintenance or assembly. Related technologies utilize bench vises to fix the valve; first, the bench vise is fixed to the workbench, and then the valve body is tightly clamped using the jaws.
[0003] In existing technologies, such as the Chinese patent application CN216830650U entitled "A tooling for assembling valves for railway passenger cars," a base is included. The base comprises a first substrate and a second substrate, the second substrate being disposed on and perpendicular to the first substrate. Positioning rods are detachably connected to either the first or second substrate via fasteners. At least two of the positioning rods are connected to a valve fitting for use with the tooling. The specific advantage of this application is that it can effectively fix various valves while reducing damage to the valve body during the fixing process.
[0004] In the existing technology, valve assembly is complicated and cumbersome because most valves require multiple parts to be fixed individually during use and installation. This leads to low efficiency when assembling valves manually.
[0005] Therefore, it is necessary to provide a tooling for assembling valves to solve the above-mentioned technical problems. Utility Model Content
[0006] This utility model provides a tooling for assembling valves, which solves the problem that most valves need to be disassembled during use and installation, making it difficult to install and fix the fully assembled valves, thus resulting in the low practicality of tooling for assembling valve semi-finished products.
[0007] To solve the above-mentioned technical problems, this utility model provides a tooling for assembling valves, including a positioning seat. A placement groove is provided on the front of the positioning seat. A first positioning rod is movably sleeved on the side of the placement groove. A second positioning rod is movably sleeved on the top of the positioning seat. A valve body is movably sleeved inside the placement groove. A valve core is movably sleeved inside the valve body. A spring is movably sleeved outside the valve core. A limit post is fixedly connected to the side of the valve core. A closing post is fixedly connected to one end of the limit post. A sealing mechanism is provided on the side of the closing post. A drain pipe is fixedly sleeved inside the valve body. A filter screen is movably sleeved inside the valve body. A fixing mechanism is provided on the front of the positioning seat.
[0008] Preferably, the valve body is adapted to the placement groove, and the valve body is movably sleeved on the outside of the first positioning rod.
[0009] Preferably, the spring is movably sleeved inside the valve body, and the spring is located in the center of the valve body cavity.
[0010] Preferably, the limiting post is located in the center of the valve body cavity, and the limiting post is parallel to the valve body.
[0011] Preferably, the sealing mechanism includes a sealing plug, which is movably fitted inside the valve body, and a sealing ring is movably fitted outside the sealing plug.
[0012] Preferably, the filter screen is adapted to the valve body, and the filter screen is made of stainless steel.
[0013] Preferably, the fixing mechanism includes a bolt, the bolt being threaded onto the front of the positioning seat, and a clamping plate being threaded onto the outer thread of the bolt.
[0014] Compared with related technologies, the tooling for assembling valves provided by this utility model has the following beneficial effects:
[0015] This utility model provides a tooling for assembling valves. When assembling a valve, the spring and valve core are sleeved inside the valve body. At this time, the valve body is sleeved inside the placement groove. The first positioning rod and the second positioning rod are respectively sleeved inside the positioning seat, so that the valve body and valve core assembly can be clamped and squeezed to be fixed inside the valve body. This achieves the effect of simultaneously squeezing and fixing multiple valve parts, thereby improving the assembly efficiency of the parts and thus improving the practicality of the valve tooling.
[0016] By setting a sealing mechanism, when the valve core moves the sealing plug through the limiting pin, the sealing ring greatly improves the sealing performance of the sealing plug's exterior, thus avoiding wear caused by friction between the sealing plug and the inner wall of the valve body. This improves the sealing effect when the sealing plug moves for a long time, thereby increasing the service life of the valve. Attached Figure Description
[0017] Figure 1 is a schematic diagram of a preferred embodiment of a tooling for assembling valves provided by this utility model;
[0018] Figure 2 is a cross-sectional view of the valve body in a tooling for assembling a valve as shown in Figure 1;
[0019] Figure 3 is a cross-sectional view of the positioning seat in a tooling for assembling a valve as shown in Figure 1;
[0020] Figure 4 is a front view of the valve body in a tooling for assembling a valve as shown in Figure 1.
[0021] The following are the labels in the diagram: 1. Positioning seat; 2. Placement slot; 3. Positioning rod 1; 4. Positioning rod 2; 5. Valve body; 6. Valve core; 7. Spring; 8. Limiting post; 9. Sealing post; 10. Sealing mechanism; 101. Sealing plug; 102. Sealing ring; 11. Drain pipe; 12. Filter screen; 13. Fixing mechanism; 131. Bolt;
[0022] 132. Clamping plate. Detailed Implementation
[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0024] Please refer to Figures 1, 2, 3, and 4. Figure 1 is a structural schematic diagram of a preferred embodiment of the tooling for assembling valves provided by this utility model; Figure 2 is a cross-sectional view of the valve body in the tooling for assembling valves shown in Figure 1; Figure 3 is a cross-sectional view of the positioning seat in the tooling for assembling valves shown in Figure 1; and Figure 4 is a front view of the valve body in the tooling for assembling valves shown in Figure 1. A tooling for assembling valves includes a positioning seat 1, a placement groove 2 on the front of the positioning seat 1, a first positioning rod 3 movably sleeved on the side of the placement groove 2, a second positioning rod 4 movably sleeved on the top of the positioning seat 1, a valve body 5 movably sleeved inside the placement groove 2, a valve core 6 movably sleeved inside the valve body 5, a spring 7 movably sleeved outside the valve core 6, a limit post 8 fixedly connected to the side of the valve core 6, a sealing post 9 fixedly connected to one end of the limit post 8, a sealing mechanism 10 provided on the side of the sealing post 9, a drain pipe 11 fixedly sleeved inside the valve body 5, a filter screen 12 movably sleeved inside the valve body 5, and a fixing mechanism 13 provided on the front of the positioning seat 1.
[0025] The valve body 5 is adapted to the placement groove 2, and the valve body 5 is movably sleeved on the outside of the first positioning rod 3. By setting the valve body 5, when assembling the valve, the spring 7 and the valve core 6 are sleeved inside the valve body 5. At this time, the valve body 5 is sleeved inside the placement groove 2. The first positioning rod 3 and the second positioning rod 4 are respectively sleeved inside the positioning seat 1, so that the valve body 5 and the valve core 6 assembly can be clamped and squeezed to be fixed inside the valve body 5. This achieves the effect of simultaneously squeezing and fixing multiple valve parts, thereby improving the assembly efficiency of the parts and thus improving the practicality of the valve tooling.
[0026] Spring 7 is movably sleeved inside valve body 5, and spring 7 is located in the center of the inner cavity of valve body 5. By setting spring 7, when adjusting the position of valve core 6, spring 7 can push valve core 6 to press tightly against the side of limit post 8, thereby achieving the clamping and fixing effect of valve core 6, thus avoiding the problem of valve core 6 shaking when valve body 5 moves, thereby improving the stability of valve core 6 position.
[0027] The limiting post 8 is located in the center of the inner cavity of the valve body 5, and the limiting post 8 is parallel to the valve body 5. By setting the limiting post 8, when the position of the valve core 6 is adjusted, the limiting post 8 can limit the movement of the valve core 6, thereby avoiding the problem of position displacement when the valve core 6 is moved and adjusted, and thus improving the stability of the valve core 6 during adjustment.
[0028] The sealing mechanism 10 includes a sealing plug 101, which is movably fitted inside the valve body 5. A sealing ring 102 is movably fitted outside the sealing plug 101. By setting the sealing mechanism 10, when the valve core 6 moves the sealing plug 101 through the limiting post 8, the sealing ring 102 greatly improves the sealing performance of the sealing plug 101, thus avoiding the problem of wear caused by friction between the sealing plug 101 and the inner wall of the valve body 5, thereby improving the sealing effect of the sealing plug 101 during long-term movement.
[0029] The filter screen 12 is compatible with the valve body 5, and the filter screen 12 is made of stainless steel. By setting the filter screen 12, when the valve is supplying hot water for a long time, the filter screen 12 can filter the water flow inside the valve body 5, so that the scale inside the water flow can be blocked to the outside of the valve core 6, thereby avoiding the problem of scale adhering to the inside of the valve core 6 and being difficult to clean, thus improving the convenience of cleaning the inside of the valve.
[0030] The fixing mechanism 13 includes a bolt 131, which is threaded onto the front of the positioning seat 1. A clamping plate 132 is threaded onto the outer side of the bolt 131. By setting the fixing mechanism 13, when the first positioning rod 3 is installed and fixed, the first positioning rod 3 is fitted inside the positioning seat 1. At this time, the clamping plate 132 is fitted onto the front of the valve body 5. Then, the bolt 131 is rotated so that the bolt 131 can fix the clamping plate 132 to the front of the positioning seat 1, thereby limiting and fixing the first positioning rod 3, and thus achieving the assembly and fixing effect of the tooling.
[0031] The working principle of the tooling for assembling valves provided by this utility model is as follows:
[0032] Step 1: First, during valve assembly, spring 7 and valve core 6 are fitted inside valve body 5. Valve body 5 is then fitted inside placement groove 2. Positioning rod 3 and positioning rod 4 are fitted inside positioning seat 1, respectively. This clamps and presses the valve body 5 and valve core 6 assembly inside valve body 5, achieving simultaneous clamping and fixing of multiple valve components, thus improving assembly efficiency and the practicality of the valve tooling. When adjusting the position of valve core 6, spring 7 pushes valve core 6 to press tightly against the side of limiting post 8, achieving clamping and fixing of valve core 6 and preventing valve core 6 from shaking when valve body 5 moves, thereby improving the stability of valve core 6's position. When adjusting the position of valve core 6, limiting post 8 limits the movement of valve core 6, preventing positional deviation during adjustment, thus improving the stability of valve core 6 during adjustment.
[0033] Step 2: When the valve core 6 moves the sealing plug 101 through the limiting post 8, the sealing ring 102 greatly improves the sealing performance of the sealing plug 101, thus avoiding the wear problem caused by the friction between the sealing plug 101 and the inner wall of the valve body 5. This improves the sealing effect of the sealing plug 101 during long-term movement. When the valve is used for hot water transportation for a long time, the filter screen 12 filters the water flow inside the valve body 5, preventing scale inside the water flow from reaching the outside of the valve core 6. This avoids the problem of scale adhering to the inside of the valve core 6 and being difficult to clean, thus improving the convenience of cleaning the inside of the valve. When installing and fixing the first positioning rod 3, the first positioning rod 3 is sleeved inside the positioning seat 1. At this time, the clamping plate 132 is sleeved on the front of the valve body 5. Then, the bolt 131 is rotated so that the bolt 131 fixes the clamping plate 132 on the front of the positioning seat 1, thereby achieving the limiting and fixing effect of the first positioning rod 3, and thus achieving the assembly and fixing effect of the tooling.
[0034] Compared with related technologies, the tooling for assembling valves provided by this utility model has the following beneficial effects:
[0035] By setting the valve body 5, when assembling the valve, the spring 7 and the valve core 6 are sleeved inside the valve body 5. At this time, the valve body 5 is sleeved inside the placement groove 2. The first positioning rod 3 and the second positioning rod 4 are respectively sleeved inside the positioning seat 1, so that the valve body 5 and the valve core 6 assembly can be clamped and squeezed to be fixed inside the valve body 5. This achieves the effect of simultaneously squeezing and fixing multiple valve components, thereby improving the assembly efficiency of the components and thus improving the practicality of the valve tooling.
[0036] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A tool for assembling a valve comprising a positioning seat (1), characterised in that: The positioning seat (1) has a placement groove (2) on its front side. A first positioning rod (3) is movably sleeved on the side of the placement groove (2). A second positioning rod (4) is movably sleeved on the top of the positioning seat (1). A valve body (5) is movably sleeved inside the placement groove (2). A valve core (6) is movably sleeved inside the valve body (5). A spring (7) is movably sleeved outside the valve core (6). A limit post (8) is fixedly connected to the side of the valve core (6). A closing post (9) is fixedly connected to one end of the limit post (8). A sealing mechanism (10) is provided on the side of the closing post (9). A drain pipe (11) is fixedly sleeved inside the valve body (5). A filter screen (12) is movably sleeved inside the valve body (5). A fixing mechanism (13) is provided on the front of the positioning seat (1).
2. The tooling for assembling a valve according to claim 1, wherein, The valve body (5) is adapted to the placement groove (2), and the valve body (5) is movably sleeved on the outside of the first positioning rod (3).
3. The tooling for assembling a valve as defined in claim 1, wherein, The spring (7) is movably sleeved inside the valve body (5), and the spring (7) is located in the center of the inner cavity of the valve body (5).
4. The tooling for assembling a valve as defined in claim 1, wherein, The limiting post (8) is located in the center of the inner cavity of the valve body (5), and the limiting post (8) and the valve body (5) are parallel to each other.
5. The tooling for assembling a valve as defined in claim 1, wherein, The sealing mechanism (10) includes a sealing plug (101), which is movably sleeved inside the valve body (5), and a sealing ring (102) is movably sleeved outside the sealing plug (101).
6. The tooling for assembling a valve as defined in claim 1, wherein, The filter screen (12) is adapted to the valve body (5), and the filter screen (12) is made of stainless steel.
7. The tooling for assembling a valve as defined in claim 1, wherein, The fixing mechanism (13) includes a bolt (131) which is threaded onto the front of the positioning seat (1) and a clamping plate (132) is threaded onto the outer thread of the bolt (131).
Citation Information
Patent Citations
Tool for assembling valves for passenger train
CN216830650U