Air valve opening display device

Abstract

The utility model discloses an air valve opening degree display device which comprises a valve body, a quarter round block installed at the rear end of the valve body, scale marks arranged at the rear end of the quarter round block, a valve plate arranged in the valve body, a valve shaft installed in the middle of the valve plate, a valve shaft front end rotatably connected with the inner wall of the valve body, and a large gear installed at the rear end of the valve shaft penetrating through the valve body. A pointing block is installed on the outer surface of the valve shaft and located at the rear end of the quarter circular block, the pointing block points to the scale marks, an annular rubber pad is installed at the rear end of the large gear, and anti-skid lines are arranged on the rear end face of the annular rubber pad. The rotating block drives the small gear to rotate, the small gear and the large gear are meshed to drive the valve shaft to rotate, the valve shaft drives the valve plate to rotate and open, meanwhile, the valve shaft drives the pointing block to rotate at the rear end of the quarter round block, the opening degree of the valve plate can be rapidly known by observing the position of the pointing block on the scale mark, and convenience and rapidness are achieved. The moving block is pushed to move, the rubber block extrudes the annular rubber pad, and the position of the large gear is fixed through friction force.

Description

Technical Field

[0001] The utility model relates to the field of air valves, in particular to an air valve opening display device. Background Art

[0002] The air valve is a device used in ventilation systems, which is mainly used to control and adjust the ventilation volume, and block the airflow when not working, so as to achieve the effects of sealing, shading and heat preservation. It consists of a single circular door plate or two semicircular door plates, which are opened and closed by rotating around a rotating axis. The working principle of the air valve is to change the air flow rate and flow rate in the air duct by controlling the valve plate to flip or move, so as to achieve the effect of controlling the air flow direction and distributing the air flow rate. The existing air valve does not have an opening display mechanism, so that the opening degree of the air valve cannot be accurately controlled when the air valve is opened, and it is not convenient to use. Therefore, those skilled in the art provide an air valve opening display device to solve the problems raised in the above background technology. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides an air valve opening display device, including a valve body, a quarter-circle block is installed at the rear end of the valve body, a scale line is set at the rear end of the quarter-circle block, a valve plate is arranged inside the valve body, a valve shaft is installed in the middle of the valve plate, the front end of the valve shaft is rotatably connected to the inner wall of the valve body, the rear end of the valve shaft passes through the valve body and is installed with a large gear, a pointing block is installed on the outer surface of the valve shaft, and the pointing block is located at the rear end of the quarter-circle block, the pointing block points to the scale line, an annular rubber pad is installed at the rear end of the large gear, and an anti-slip pattern is set on the rear end surface of the annular rubber pad;

[0004] The large gear and the small gear are meshed, a rotating shaft is installed in the middle of the small gear, the front end of the rotating shaft is rotatably connected to the valve body, the rear end of the rotating shaft is installed with a rotating block, a positioning rod is installed at the rear end of the valve body, a clamping hole is provided inside the positioning rod, the outer surface of the positioning rod is slidably connected to the moving block, a matching hole is provided inside the moving block, and the moving block is sleeved on the outer surface of the positioning rod through the matching hole, a rubber block is installed at the front end of the moving block, and the rubber block corresponds to the position of the annular rubber pad, and an anti-slip pattern is provided on the front end surface of the rubber block;

[0005] A through hole is provided inside the moving block, and a pull block is slidably connected inside the through hole. A clamping block is installed at one end of the pull block, and the clamping block passes through one end of the matching hole. A pull rod is installed at the other end of the pull block, and a spring is symmetrically installed near one end of the pull rod.

[0006] Preferably, the outer surface of the rotating shaft is rotatably connected to a fixing block.

[0007] Preferably, support rods are symmetrically installed on the sides of the fixing block, and the support rods are fixedly connected to the valve body, and the support rods are L-shaped as a whole.

[0008] Preferably, a limiting block is installed at the rear end of the positioning rod.

[0009] Preferably: the pull rod passes through the moving block and is installed with a pull ring.

[0010] Preferably, limiting rods are symmetrically installed inside the through holes, and the limiting rods pass through the pull blocks.

[0011] Technical effects and advantages of the utility model:

[0012] The utility model has a simple structure and low manufacturing cost. The small gear is driven to rotate by the rotating block, and the small gear and the large gear are engaged to drive the valve shaft to rotate. The valve shaft drives the valve plate to rotate and open. At the same time, the valve shaft drives the pointing block to rotate at the rear end of the quarter-circle block. The opening degree of the valve plate can be quickly understood by observing the position of the pointing block on the scale line. Then, the moving block is pushed to move, so that the rubber block squeezes the annular rubber pad and fixes the position of the large gear by friction. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of this application;

[0014] Figure 2 It is a structural schematic diagram of the valve plate of the present application;

[0015] Figure 3 It is a structural schematic diagram of the rotating shaft of the present application;

[0016] Figure 4 It is a structural schematic diagram of the positioning rod of the present application;

[0017] Figure 5 It is a schematic diagram of the structure of the mobile block of this application;

[0018] In the figure: 1. valve body; 2. quarter-circle block; 3. scale line; 4. valve plate; 5. valve shaft; 6. pointing block; 7. large gear; 8. annular rubber pad; 9. small gear; 10. rotating shaft; 11. fixed block; 12. support rod; 13. rotating block; 14. positioning rod; 15. clamping hole; 16. moving block; 17. matching hole; 18. rubber block; 19. through hole; 20. pull block; 21. clamping block; 22. pull rod; 23. spring; 24. pull ring; 25. limit rod. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes.

[0020] See also Figures 1 to 5 In this embodiment, a damper opening display device is provided, including a valve body 1, a quarter-circle block 2 is installed at the rear end of the valve body 1, and a scale line 3 is set at the rear end of the quarter-circle block 2. A valve plate 4 is arranged inside the valve body 1, and a valve shaft 5 is installed in the middle of the valve plate 4. The front end of the valve shaft 5 is rotatably connected to the inner wall of the valve body 1, and the rear end of the valve shaft 5 passes through the valve body 1 and is installed with a large gear 7. A pointing block 6 is installed on the outer surface of the valve shaft 5, and the pointing block 6 is located at the rear end of the quarter-circle block 2, and the pointing block 6 points to the scale line 3. An annular rubber pad 8 is installed at the rear end of the large gear 7, and an anti-slip groove is set on the rear end surface of the annular rubber pad 8. The large gear 7 is meshed with a small gear 9. A rotating shaft 10 is installed in the middle of the small gear 9. The front end of the rotating shaft 10 is rotatably connected to the valve body 1, and a rotating block 13 is installed at the rear end of the rotating shaft 10. The outer surface of the rotating shaft 10 is rotatably connected to the fixed block 11, and a support rod 12 is symmetrically installed on the side of the fixed block 11, and the support rod 12 is fixedly connected to the valve body 1. The support rod 1 The valve body 1 is L-shaped as a whole. A positioning rod 14 is installed at the rear end of the valve body 1. A limiting block is installed at the rear end of the positioning rod 14. A clamping hole 15 is provided inside the positioning rod 14. The outer surface of the positioning rod 14 is slidably connected to a moving block 16. A matching hole 17 is provided inside the moving block 16. The moving block 16 is sleeved on the outer surface of the positioning rod 14 through the matching hole 17. A rubber block 18 is installed at the front end of the moving block 16. The rubber block 18 corresponds to the position of the annular rubber pad 8. The front end surface of the rubber block 18 is provided with anti-slip grooves. A through hole 19 is provided inside the moving block 16. A pull block 20 is slidably connected inside the through hole 19. A clamping block 21 is installed at one end of the pull block 20. The clamping block 21 passes through one end of the matching hole 17. A pull rod 22 is installed at the other end of the pull block 20. The pull rod 22 passes through the moving block 16 and is installed with a pull ring 24. A spring 23 is symmetrically installed near one end of the pull block 20 near the pull rod 22. A limiting rod 25 is symmetrically installed inside the through hole 19. The limiting rod 25 passes through the pull block 20.

[0021] The working principle of the utility model is: the pull block 20 is pulled by the pull ring 24 and the pull rod 22 to move the compression spring 23, the pull block 20 drives the card block 21 to leave the card hole 15, and pushes the moving block 16 to move, so that the rubber block 18 leaves the annular rubber pad 8, and the rotating shaft 10 is driven to rotate by the rotating block 13, and the rotating shaft 10 drives the small gear 9 to rotate, and the small gear 9 and the large gear 7 are engaged to drive the valve shaft 5 to rotate, and the valve shaft 5 drives the valve plate 4 to rotate and open. At the same time, the valve shaft 5 drives the pointing block 6 to rotate at the rear end of the quarter circle block 2. By observing the position of the pointing block 6 on the scale line 3, the opening degree of the valve plate 4 can be quickly understood, which is convenient and fast. After the opening is completed, the moving block 16 is pushed to move, so that the rubber block 18 squeezes the annular rubber pad 8, and the position of the large gear 7 is fixed by friction, so that the large gear 7 will not rotate easily, and then, the pull block 20 is pushed to reset by the spring 23, and the pull block 20 drives the card block 21 to be inserted into the card hole 15 to fix the position of the moving block 16.

[0022] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A device for displaying the opening of an air valve, comprising a valve body (1), characterized in that: A quarter-circular block (2) is installed at the rear end of the valve body (1), and a scale line (3) is arranged at the rear end of the quarter-circular block (2). A valve plate (4) is arranged inside the valve body (1), and a valve shaft (5) is installed in the middle of the valve plate (4). The front end of the valve shaft (5) is rotatably connected to the inner wall of the valve body (1), and the rear end of the valve shaft (5) passes through the valve body (1) and is installed with a large gear (7). A pointing block (6) is installed on the outer surface of the valve shaft (5), and the pointing block (6) is located at the rear end of the quarter-circular block (2), and the pointing block (6) points to the scale line (3). An annular rubber pad (8) is installed at the rear end of the large gear (7), and an anti-slip pattern is arranged on the rear end surface of the annular rubber pad (8); The large gear (7) and the small gear (9) are meshed, a rotating shaft (10) is installed in the middle of the small gear (9), the front end of the rotating shaft (10) is rotatably connected to the valve body (1), the rear end of the rotating shaft (10) is installed with a rotating block (13), the rear end of the valve body (1) is installed with a positioning rod (14), a clamping hole (15) is provided inside the positioning rod (14), the outer surface of the positioning rod (14) is slidably connected to the moving block (16), a matching hole (17) is provided inside the moving block (16), and the moving block (16) is sleeved on the outer surface of the positioning rod (14) through the matching hole (17), a rubber block (18) is installed at the front end of the moving block (16), and the rubber block (18) corresponds to the position of the annular rubber pad (8), and the front end surface of the rubber block (18) is provided with anti-slip grooves; A through hole (19) is provided inside the moving block (16), and a pulling block (20) is slidably connected inside the through hole (19). A clamping block (21) is installed at one end of the pulling block (20), and the clamping block (21) passes through one end of the matching hole (17). A pulling rod (22) is installed at the other end of the pulling block (20), and a spring (23) is symmetrically installed near one end of the pulling rod (22) of the pulling block (20).

2. The air valve opening display device according to claim 1, characterized in that: The outer surface of the rotating shaft (10) is rotatably connected to a fixing block (11).

3. The air valve opening display device according to claim 2, characterized in that: The supporting rod (12) is symmetrically mounted on the side of the fixing block (11), and the supporting rod (12) is fixedly connected to the valve body (1), and the supporting rod (12) is L-shaped as a whole.

4. The air valve opening display device according to claim 1, characterized in that: A limiting block is installed at the rear end of the positioning rod (14).

5. The air valve opening display device according to claim 1, characterized in that: The pull rod (22) passes through the moving block (16) and is installed with a pull ring (24).

6. The air valve opening display device according to claim 1, characterized in that: The limiting rods (25) are symmetrically installed inside the through holes (19), and the limiting rods (25) pass through the pulling block (20).

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