Pneumatic stop valve
By designing a pneumatic stop valve and utilizing the combined structure of a pneumatic control block and a valve core block, the problem that existing manual control valves cannot meet the needs of intelligent vehicles is solved, and a valve control effect with fast response and stable reset is achieved.
Patent Information
- Application Number
- CN202422390668.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-09-29
AI Technical Summary
Existing manually controlled stop valves cannot meet the use requirements of modern, electrified intelligent vehicles and cannot achieve efficient electrified intelligent control.
A pneumatic stop valve is designed. Through the combined setting of cylinders, the movable connection between the pneumatic control block and the valve core block is utilized, combined with the combination of reset compression spring and telescopic reset spring, to achieve rapid response and stable reset of the valve core block, ensuring reliable opening and closing control of the valve.
It achieves rapid response and stable reset of the pneumatic stop valve, ensures the smoothness and reliability of the dynamic opening and closing process of the stop valve, and meets the electrification control needs of intelligent vehicles.
Smart Images
Figure CN223411601U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of valve equipment, in particular to a pneumatic stop valve. Background Art
[0002] As railway vehicles become increasingly intelligent, their oil and power control systems are increasingly connected via pneumatic and hydraulic pipelines, relying on valves to open and close these pipelines. Common stop valves are often manually controlled. While simple in structure, easy to manufacture and maintain, and frequently used, these valves cannot meet the demands of modern, electrified, intelligent vehicles. Therefore, we propose a pneumatic stop valve. Utility Model Content
[0003] The purpose of the utility model is to provide a pneumatic stop valve, which has the advantage of being able to meet the electrified intelligent control effect of the stop valve through the combined arrangement of cylinders.
[0004] The above technical objectives of the present utility model are achieved through the following technical solutions: A pneumatic stop valve includes a valve body, a pneumatic control block is provided at the top of the valve body, and is characterized in that: a valve cavity is provided in the middle of the valve body, a valve core block is rotatably connected to the middle of the valve cavity, the pneumatic control block and the valve core block are movably connected, a mounting platform is provided on the valve body for movably mounting the pneumatic control block, a driving connecting rod is provided on the valve core block, a driving groove is provided in the middle of the mounting platform for rotatably inserting the driving connecting rod, a transmission ear block is provided at one end of the driving connecting rod away from the valve core block, a pneumatic cavity is provided in the middle of the pneumatic control block, a pneumatic piston block is movably connected in the pneumatic cavity, an air inlet groove cooperating with the pneumatic cavity is provided on the pneumatic control block, a sleeve cooperating with the driving connecting rod is fixed on the pneumatic piston block, a transmission slot is provided in the middle of the sleeve for inserting with the driving connecting rod, a rotating ring groove is provided on the side wall of the sleeve for cooperating with the transmission ear block, and a plurality of return compression springs are provided below the pneumatic piston block.
[0005] Preferably, an auxiliary driving cavity block is further provided at the bottom of the valve cavity, a rotating block is provided at the bottom of the valve core block, and a rotating cavity for rotating the rotating block is provided in the auxiliary driving cavity block.
[0006] Preferably, the cavity wall of the rotating cavity is further provided with a reset and correction groove, the rotating block is provided with a reset ear block which is slidably plugged into the reset and correction groove, and a telescopic reset spring is provided between the reset ear block and the reset and correction groove.
[0007] Preferably, the notch of the rotating ring groove is provided with a vertical guide groove.
[0008] Preferably, one end of the driving connecting rod close to the valve core block is provided with a clamping ring block which is rotatably plugged into the driving groove.
[0009] Preferably, a sealing groove for the pneumatic control block to be embedded is provided on the mounting block.
[0010] In summary, the present invention has the following beneficial effects:
[0011] 1. Through the pneumatic linkage control between the pneumatic control block and the valve core block, the valve core block can quickly respond to the rotation of the external pressure gas injection. At the same time, under the combined action of the reset compression spring and the telescopic reset spring, the valve core block can be reliably rotated and reset efficiently and stably, ensuring the stability and smoothness of the dynamic opening and closing control process of the entire stop valve. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a cross-sectional view showing the structure of the pneumatic stop valve in the embodiment;
[0013] Figure 2 is a schematic diagram for showing the position of the rotating ring groove in the embodiment;
[0014] Figure 3 It is used to show the partial cross-sectional view inside the auxiliary drive cavity block in the embodiment
[0015] Figure 4 yes Figure 1 A magnified view of center.
[0016] Figure numerals: 1. valve body; 2. pneumatic control block; 3. valve chamber; 4. valve core block; 5. mounting block; 6. driving connecting rod; 7. driving groove; 8. driving ear block; 9. pneumatic chamber; 10. pneumatic piston block; 11. air inlet groove; 12. sleeve; 13. driving slot; 14. rotating ring groove; 15. reset compression spring; 16. auxiliary driving chamber block; 17. rotating block; 18. rotating chamber; 19. reset correction groove; 20. reset ear block; 21. telescopic reset spring; 22. vertical guide groove; 23. clamping ring block; 24. sealing groove. DETAILED DESCRIPTION
[0017] The present invention will be described in further detail below with reference to the accompanying drawings.
[0018] Embodiment: A pneumatic stop valve, such as Figure 1 As shown, it includes a valve body 1, a pneumatic control block 2 is provided at the top of the valve body 1, a valve cavity 3 is provided in the middle of the valve body 1, a valve core block 4 is rotatably connected to the middle of the valve cavity 3, and the pneumatic control block 2 and the valve core block 4 are movably connected. The opening and closing control of the valve core block 4 in the valve cavity 3 can be realized through the driving control of the pneumatic control block 2.
[0019] The valve body 1 is provided with a mounting block 5 for the movable mounting of the pneumatic control block 2. Installers achieve pneumatic drive control by securing the pneumatic control block 2 to the valve body 1. The mounting block 5 is provided with a sealing groove 24 for the pneumatic control block 2 to engage, ensuring the airtightness of the structure. A drive connecting rod 6 is provided on the valve core block 4. A drive groove 7 is provided in the middle of the mounting block 5 for the rotational engagement of the drive connecting rod 6. A snap ring block 23 is provided on the end of the drive connecting rod 6 near the valve core block 4, which is rotationally engaged with the drive groove 7. This ensures smooth rotation of the valve core block 4 and the valve chamber 3 under the action of the drive connecting rod 6. The snap ring block 23 maintains rotational engagement with the drive groove 7.
[0020] The driving connecting rod 6 is provided with a transmission ear block 8 (such as Figure 4 As shown in the figure, the pneumatic control block 2 has a pneumatic chamber 9 in the middle, and a pneumatic piston block 10 is movably connected to the pneumatic chamber 9. The pneumatic control block 2 is provided with an air inlet groove 11 that cooperates with the pneumatic chamber 9. The user injects pneumatic air into the air inlet groove 11 through the railway locomotive air system, driving the movement of the pneumatic piston block 10. The pneumatic piston block 10 is also fixed with a sleeve 12 that cooperates with the drive connecting rod 6. The middle of the sleeve 12 is provided with a transmission slot 13 that plugs into the drive connecting rod 6. The side wall of the sleeve 12 is provided with a rotating ring groove 14 for the transmission ear block 8 to cooperate with (as shown in the figure). Figure 2 As shown), when the air system in the railway locomotive realizes the input of pressurized gas, the pneumatic piston block 10 is compressed, driving the sleeve 12 to move radially, realizing the driving action to the drive connecting rod 6, so that the transmission groove 13 of the sleeve 12 is sleeved to the drive connecting rod 6 under continuous pressure injection, and the notch of the rotating ring groove 14 is provided with a vertical guide groove 22 (as shown). Figure 2 As shown), it is possible to achieve precise guide limiting of the transmission ear block 8, and drive the transmission ear block 8 to move smoothly along the rotating ring groove 14 along with the continuous feeding action, thereby completing the rotation of the valve core block 4 driven by the driving connecting rod 6 and realizing the closure of the valve chamber 3.
[0021] like Figure 1 and Figure 3As shown, when it is necessary to open the valve chamber 3 channel, the external gas injection is removed, and multiple return compression springs 15 are provided below the pneumatic piston block 10. When the pneumatic piston block 10 is compressed, the multiple return compression springs 15 are compressed. As the external pressure gas is removed, the pneumatic piston block 10 quickly rebounds and resets under the elastic recovery potential energy of the multiple return compression springs 15. At this time, the sleeve 12 is synchronously lifted, driving the rotation of the drive connecting rod 6 to complete the reversing effect of the valve core block 4 and realize the opening of the valve chamber 3. In order to improve the smoothness and stability of the valve core block 4 during the rotation and switching process, an auxiliary drive chamber block 16 is provided at the bottom of the valve chamber 3, and a rotating block 17 is provided at the bottom of the valve core block 4. A rotating chamber 18 is provided in the auxiliary drive chamber block 16 for the rotating block 17 to rotate with. This ensures that the rotating block 17 always maintains a flexible rotation effect with the rotating chamber 18 during the rotation adjustment of the valve core block 4. The cavity wall of the rotating cavity 18 is also provided with a reset correction groove 19, and the rotating block 17 is provided with a reset ear block 20 that is slidably plugged into the reset correction groove 19. A telescopic reset spring 21 is provided between the reset ear block 20 and the reset correction groove 19. During the rotation of the rotating block 17 relative to the rotating cavity 18, the reset ear block 20 is synchronously driven to rotate and the telescopic reset spring 21 is compressed, thereby improving the stability of the steering adjustment process of the valve core block 4. At the same time, the provision of the telescopic reset compression spring 15 can also improve the rapid response of the rotation process of the valve core block 4 as a whole under the action of the reset compression spring 15, further ensuring the reliability and convenience of the pneumatic drive during the operation of the entire pneumatic stop valve.
[0022] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.
Claims
1. A pneumatic stop valve, comprising a valve body (1), wherein a pneumatic control block (2) is provided at the top end of the valve body (1), and wherein: The middle of the valve body (1) is provided with a valve cavity (3), the middle of the valve cavity (3) is rotatably connected to a valve core block (4), the pneumatic control block (2) and the valve core block (4) are movably connected, the valve body (1) is provided with a mounting block (5) for movably mounting the pneumatic control block (2), the valve core block (4) is provided with a driving connecting rod (6), the middle of the mounting block (5) is provided with a driving groove (7) for rotatably plugging the driving connecting rod (6), the end of the driving connecting rod (6) away from the valve core block (4) is provided with a transmission ear block (8), the middle of the pneumatic control block (2 ... driving connecting rod (6) is provided with a driving ear block (8), the middle of the pneumatic control block (2) is provided with a driving groove (7) for rotatably plugging the driving connecting rod (6), the driving connecting rod (6) is provided with a driving ear block (8), the middle of the pneumatic control block (2) is provided with a driving groove (7) for rotatably plugging the driving connecting rod (6), the driving connecting rod (6) is provided with a driving groove (7) A pneumatic chamber (9) is provided, wherein a pneumatic piston block (10) is movably connected in the pneumatic chamber (9), an air inlet groove (11) cooperating with the pneumatic chamber (9) is provided on the pneumatic control block (2), a sleeve (12) cooperating with the driving connecting rod (6) is fixed on the pneumatic piston block (10), a transmission slot (13) plugged into the driving connecting rod (6) is provided in the middle of the sleeve (12), a rotating ring groove (14) for cooperating with the transmission ear block (8) is provided on the side wall of the sleeve (12), and a plurality of return compression springs (15) are provided below the pneumatic piston block (10).
2. A pneumatic stop valve according to claim 1, characterized in that: An auxiliary driving cavity block (16) is further provided at the bottom of the valve cavity (3), a rotating block (17) is provided at the bottom of the valve core block (4), and a rotating cavity (18) for rotatingly engaging the rotating block (17) is provided in the auxiliary driving cavity block (16).
3. A pneumatic stop valve according to claim 2, characterized in that: The cavity wall of the rotating cavity (18) is further provided with a reset and deviation-correcting groove (19), and the rotating block (17) is provided with a reset ear block (20) that is slidably plugged into the reset and deviation-correcting groove (19), and a telescopic reset spring (21) is provided between the reset ear block (20) and the reset and deviation-correcting groove (19).
4. A pneumatic stop valve according to claim 1, characterized in that: The notch of the rotating ring groove (14) is provided with a vertical guide groove (22).
5. The pneumatic stop valve according to claim 1, characterized in that: One end of the driving connecting rod (6) close to the valve core block (4) is provided with a clamping ring block (23) that is rotatably plugged into the driving groove (7).
6. The pneumatic stop valve according to claim 1, characterized in that: The mounting block (5) is provided with a sealing groove (24) for the pneumatic control block (2) to be engaged.