Pneumatic switch type air valve
By introducing a limiting part and push plate buffer structure into the pneumatic switch-type air valve, the problem of excessive rotation angle of the valve plate caused by excessive cylinder pushing distance is solved, and the use effect and durability of the air valve are improved.
Patent Information
- Application Number
- CN202421522973.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-07-01
AI Technical Summary
When the existing pneumatic switch type air valve is switched, the cylinder push distance is too long, causing the rotation angle of the valve shaft inside the air valve to exceed 90°, which affects the use effect and may cause damage to the air valve.
A pneumatic switch type air valve is designed. By setting a limiting part in the valve sleeve, the valve plate is always maintained at 90° to 180°, and a good sealing effect is achieved through the sealing rubber ring and the sealing groove. When the cylinder pushes and pulls back the push plate, the push plate acts as a buffer, reducing the possibility of air valve damage.
The valve plate is limited by the limiting member to ensure that the valve plate operates within the appropriate rotation angle range, improve the use effect of the air valve, and reduce the damage to the air valve through the buffering effect of the push plate.
Smart Images
Figure CN222633846U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of air valves, in particular to a pneumatic switch type air valve. Background Art
[0002] Air valve is a device used to control air flow in pipes and is widely used in ventilation, air conditioning and smoke exhaust systems. Its main functions include regulating air flow, pressure and direction. Air valves are widely used in HVAC systems in industrial and mining and civil buildings to accurately regulate air flow and are one of the key devices for controlling ventilation modes in various environments.
[0003] Most of the existing air valves are pneumatically switched, that is, they are switched by cylinders to avoid manual switching. However, when the current pneumatic switch air valves are switched, the cylinders often push the valve for too long, which will cause the valve shaft inside the air valve to drive the valve plate to rotate more than 90°, thereby affecting the use effect of the air valve. When there is a limiting structure inside the air valve, pushing the air valve for too long for a long time will also cause damage to the air valve. Utility Model Content
[0004] The purpose of the utility model is to provide a pneumatic switch type air valve to solve the problems raised in the above background technology.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A pneumatic switch type air valve comprises a valve sleeve, a valve disc is arranged inside the valve sleeve, limit members are arranged on both sides of the valve sleeve, a sealing groove is arranged on the inner side of the limit member, sealing rubber rings are arranged on both sides of the valve disc, the sealing rubber rings are connected to the sealing grooves, a closing plate is arranged on the top of the valve disc, a valve shaft is arranged on the top of the closing plate, a gear is arranged on the top of the valve shaft, a mounting sleeve is arranged on the top of the valve sleeve, a rack is arranged inside the mounting sleeve, the rack is meshed with the gear, a cylinder is arranged on the outer side of the mounting sleeve, a spring is arranged on the top of the cylinder, a push plate is arranged on the top of the spring, and the push plate is connected to the rack.
[0007] In a preferred embodiment of the present utility model, a connecting port is provided at the inner bottom of the valve sleeve, a connecting bolt is provided at the bottom of the valve plate, and the connecting bolt is movably connected to the connecting port.
[0008] In a preferred embodiment of the present utility model, an axis groove is provided at the top of the inner side of the valve sleeve and the outer side of the valve shaft, and a ball is provided inside the axis groove, and the ball rolls on the axis groove.
[0009] In a preferred embodiment of the present utility model, limit rails are arranged on the upper and lower sides of the interior of the installation sleeve, and limit strips are arranged on the upper and lower sides of the rack, and the limit strips are slidably connected to the limit rails.
[0010] In a preferred embodiment of the present utility model, a limiting bolt is arranged inside the spring, a limiting opening is arranged at the rear side of the push plate, and the limiting bolt is slidably connected to the limiting opening.
[0011] In a preferred embodiment of the present utility model, a limiting block is provided on one side of the push plate, a limiting groove is provided on one side of the top of the valve sleeve, and the limiting block is slidably connected to the limiting groove.
[0012] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention.
[0013] Beneficial effects: The air valve limits the valve plate through the limiter, so that the valve plate is always kept at 90°~180°, and the sealing rubber ring is connected to the sealing groove, so that the valve plate has a good sealing effect when it is closed. When the cylinder pushes and pulls back the push plate, the push plate plays a certain buffering role, thereby reducing the damage of the air valve. The limit bolt is limited by the limit port, thereby ensuring the stability of the push plate during buffering.
[0014] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiment of the utility model with the accompanying drawings. The specific implementation method of the utility model is given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:
[0016] Figure 1 This is a schematic diagram of the main structure of a pneumatic switch type air valve;
[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of a valve sleeve in a pneumatic switch type air valve;
[0018] Figure 3 This is a schematic diagram of the top connection structure of the valve plate in a pneumatic switch type air valve;
[0019] Figure 4 The figure is a schematic diagram of the connection structure between the cylinder and the push plate in a pneumatic switch type air valve.
[0020] In the figure: 1. valve sleeve; 11. valve plate; 12. limit piece; 13. sealing rubber ring; 14. sealing groove; 2. connecting port; 21. connecting bolt; 22. valve shaft; 23. closing plate; 3. shaft groove; 31. ball; 32. mounting sleeve; 33. limit rail; 34. limit groove; 4. gear; 41. rack; 42. limit strip; 43. spring; 44. cylinder; 5. push plate; 51. limit block; 52. limit port; 53. limit bolt. DETAILED DESCRIPTION
[0021] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0022] Please refer to Figure 1-4 The utility model is a pneumatic switch type air valve, comprising a valve sleeve 1, a valve plate 11 is arranged inside the valve sleeve 1, the valve sleeve 1 and the valve plate 11 are the main structures of the air valve, the air duct is installed through the valve sleeve 1, and the valve plate 11 is used to adjust the air volume and switch. Limiting members 12 are arranged on both sides of the valve sleeve 1, and the limiting members 12 are used to limit the valve plate 11, so that the valve plate 11 is always kept at 90°~180°, a sealing groove 14 is arranged on the inner side of the limiting member 12, and sealing rubber rings 13 are arranged on both sides of the valve plate 11. The sealing rubber rings 13 are connected to the sealing grooves 14, so that the valve plate 11 has a good sealing effect when it is closed, and a closing plate 23 is arranged on the top of the valve plate 11, and the closing plate 23 closes the top, and a connecting port 2 is arranged on the bottom of the inner side of the valve sleeve 1, and a connecting bolt 21 is arranged at the bottom of the valve plate 11, and the connecting bolt 21 is movably connected to the connecting port 2, and the connecting port 2 is connected through the connecting bolt 21, so that the bottom of the valve plate 11 is always stable.
[0023] A valve shaft 22 is arranged on the top of the closing plate 23, a gear 4 is arranged on the top of the valve shaft 22, a mounting sleeve 32 is arranged on the top of the valve sleeve 1, a rack 41 is arranged inside the mounting sleeve 32, the rack 41 is meshed with the gear 4, a cylinder 44 is arranged on the outside of the mounting sleeve 32, a spring 43 is arranged on the top of the cylinder 44, a push plate 5 is arranged on the top of the spring 43, the push plate 5 is connected to the rack 41, an axis groove 3 is arranged on the top of the inner side of the valve sleeve 1 and the outside of the valve shaft 22, a ball 31 is arranged inside the axis groove 3, the ball 31 rolls on the axis groove 3, that is, the spring 43 and the push plate 5 are pushed by the cylinder 44, thereby pushing the rack 41, thereby driving the gear 4 to rotate, that is, driving the valve shaft 22 to rotate, so that the valve plate 11 is opened and closed, and the ball 31 rolls on the axis groove 3, so that the valve shaft 22 rotates more smoothly, and when the cylinder 44 pushes and pulls back the push plate 5, the push plate 5 plays a certain buffering role, thereby reducing the damage of the air valve.
[0024] Limiting rails 33 are arranged on the upper and lower sides of the mounting sleeve 32, and limiting strips 42 are arranged on the upper and lower sides of the rack 41. The limiting strip 42 is slidably connected to the limiting rail 33, and the limiting strip 42 is limited by the limiting rail 33, so that the rack 41 remains stable when sliding. A limiting bolt 53 is arranged on the inner side of the spring 43, and a limiting opening 52 is arranged on the rear side of the push plate 5. The limiting bolt 53 is slidably connected to the limiting opening 52, and the limiting bolt 53 is limited by the limiting opening 52, so as to ensure the stability of the push plate 5 during buffering. A limiting block 51 is arranged on one side of the push plate 5, and a limiting groove 34 is arranged on one side of the top of the valve sleeve 1. The limiting block 51 is slidably connected to the limiting groove 34, and the limiting block 51 is limited by the limiting groove 34, so that the push plate 5 remains stable when pushed.
[0025] The working principle of the utility model is as follows: the air valve limits the valve plate 11 through the limiting member 12, so that the valve plate 11 is always kept at 90°~180°, the sealing rubber ring 13 is connected to the sealing groove 14, so that the valve plate 11 has a good sealing effect when it is closed, the closing plate 23 closes the top, and the connecting port 2 is connected through the connecting bolt 21, so that the bottom of the valve plate 11 is always kept stable, the spring 43 and the push plate 5 are pushed by the cylinder 44, so as to push the rack 41, and the limiting block 51 is limited by the limiting groove 34, so that the push plate 5 is pushed. The limit bar 42 is limited by the limit rail 33, so that the rack 41 remains stable when sliding, thereby driving the gear 4 to rotate, that is, driving the valve shaft 22 to rotate, so that the valve plate 11 is switched, and the ball 31 rolls on the shaft groove 3, so that the valve shaft 22 rotates more smoothly, and when the cylinder 44 pushes and pulls back the push plate 5, the push plate 5 plays a certain buffering role, thereby reducing the damage of the air valve, and the limit bolt 53 is limited by the limit port 52, so as to ensure the stability of the push plate 5 during buffering.
[0026] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.
Claims
1. A pneumatic switch type air valve, comprising a valve sleeve (1), characterized in that: A valve disc (11) is arranged inside the valve sleeve (1), and limiting members (12) are arranged on both sides of the valve sleeve (1), and a sealing groove (14) is arranged inside the limiting member (12). Sealing rubber rings (13) are arranged on both sides of the valve disc (11), and the sealing rubber rings (13) are connected to the sealing grooves (14). A closing plate (23) is arranged on the top of the valve disc (11), and a valve shaft (22) is arranged on the top of the closing plate (23), and a gear (4) is arranged on the top of the valve shaft (22). A mounting sleeve (32) is arranged on the top of the valve sleeve (1), and a rack (41) is arranged inside the mounting sleeve (32), and the rack (41) is meshed with the gear (4). A cylinder (44) is arranged on the outside of the mounting sleeve (32), and a spring (43) is arranged on the top of the cylinder (44). A push plate (5) is arranged on the top of the spring (43), and the push plate (5) is connected to the rack (41).
2. A pneumatic switch type air valve according to claim 1, characterized in that: The inner bottom of the valve sleeve (1) is provided with a connection port (2), and the bottom of the valve plate (11) is provided with a connection bolt (21), and the connection bolt (21) is movably connected to the connection port (2).
3. A pneumatic switch type air valve according to claim 1, characterized in that: An axis groove (3) is provided at the top of the inner side of the valve sleeve (1) and the outer side of the valve shaft (22), and a ball (31) is provided inside the axis groove (3), and the ball (31) rolls on the axis groove (3).
4. A pneumatic switch type air valve according to claim 1, characterized in that: Limiting rails (33) are arranged on the upper and lower sides of the interior of the installation sleeve (32), and limiting strips (42) are arranged on the upper and lower sides of the rack (41), and the limiting strips (42) are slidably connected to the limiting rails (33).
5. The pneumatic switch type air valve according to claim 1, characterized in that: A limit bolt (53) is arranged inside the spring (43), a limit opening (52) is arranged at the rear side of the push plate (5), and the limit bolt (53) is slidably connected to the limit opening (52).
6. The pneumatic switch type air valve according to claim 1, characterized in that: A limiting block (51) is provided on one side of the push plate (5), a limiting groove (34) is provided on one side of the top of the valve sleeve (1), and the limiting block (51) is slidably connected to the limiting groove (34).