Adjustable valve for heat supply, ventilation and air conditioner

Abstract

The utility model belongs to the technical field of heat supply valves, and particularly relates to an adjustable valve for heat supply, ventilation and air conditioning, which comprises an exhaust valve body and a valve cover, the valve cover is in threaded connection with the exhaust valve body, one side of the valve cover is provided with a fixing plate, the valve cover and the fixing plate are both provided with exhaust ports, and the exhaust ports are communicated with the exhaust valve body. The side, away from the valve deck, of the fixing plate is slidably connected with two check blocks, and an inclined face is arranged on one side of each check block. By sliding the V-shaped frame on the fixing plate, the shielding area of the two check blocks to the exhaust port can be adjusted, so that the purpose of adjusting the air passing sectional area is achieved, the exhaust speed can be adjusted, the situation that the exhaust speed is large or small at different stages due to the fact that the size of the exhaust port is fixed is reduced, and the exhaust efficiency is improved. And meanwhile, the valve cover can be conveniently rotated through the fixing rod, and the situation that due to the fact that the valve cover is not adjusted for a long time, connection between the valve cover and the exhaust valve body is too tight, and adjustment is difficult is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of heating valves, and in particular relates to an adjustable valve for heating, ventilation and air conditioning. Background Art

[0002] The exhaust valve is a commonly used valve in heating, ventilation and air conditioning technology. It is used to exhaust the pipes and is mainly used in independent heating systems, central air conditioning and centralized heating systems. The commonly used exhaust valve is to close or open the exhaust valve by tightening or loosening the valve cover. When the valve cover is loosened, the gas in the valve can be discharged outward through the exhaust port on the valve cover. Since the size of the exhaust port is fixed, the gas discharge speed is relatively stable. However, the exhaust speed required at different stages of the air conditioning and heating system is different. During the startup phase, a large amount of air needs to be discharged quickly. At this time, the exhaust valve is required to have a higher exhaust speed. During the normal operation phase, the exhaust speed requirement is relatively low, mainly to discharge the trace gas continuously generated in the system. When the exhaust speed is too high, too much hot water is lost during the exhaust process, which will cause the system pressure to drop and the hot water circulation to slow down. When the exhaust flow rate is too small, air plugs will form in the system, hindering the hot water circulation and causing uneven heating and cooling in the room. Therefore, an adjustable valve is needed. Utility Model Content

[0003] The utility model provides an adjustable valve for heating, ventilation and air conditioning, which has the characteristics that the blocking area of the exhaust port by two blocks can be adjusted by sliding a V-shaped frame on a fixed plate, thereby achieving the purpose of adjusting the cross-sectional area of gas passing through, and the exhaust speed can be adjusted.

[0004] The utility model provides the following technical solution: it includes an exhaust valve body and a valve cover, the valve cover is threadedly connected to the exhaust valve body, a fixing plate is provided on one side of the valve cover, and exhaust ports are provided on the valve cover and the fixing plate, and the fixing plate is slidably connected to two blocks on the side away from the valve cover, and a slope is provided on one side of the stopper, and the fixing plate is slidably connected to a V-shaped frame on the side away from the valve cover, and connecting rods are provided at both ends of the V-shaped frame, and a connecting plate is passed between the two connecting rods, one side of the fixing plate is fixedly connected to the fixing rod, and one side of the fixing rod is rotatably connected to a threaded rod, a threaded groove is provided on the connecting plate, and the threaded rod is threadedly connected to the threaded groove.

[0005] Wherein, two sliding grooves are provided on one side of the fixing plate, and the two stoppers are slidably connected to the sliding grooves.

[0006] Wherein, two fixing blocks are provided on the fixing plate, and the fixing blocks are connected to the stop blocks via springs.

[0007] Among them, extension plates are provided at both ends of the V-shaped frame, the connecting rod is fixedly connected to the extension plate, and the spring does not contact the connecting rod.

[0008] Among them, the two connecting rods are parallel to each other, and the connecting plate is perpendicular to the connecting rod.

[0009] Among them, the two stoppers are located inside the V-shaped frame, and the inner side of the V-shaped frame is slidably connected to the inclined surface.

[0010] Among them, the fixed rod is perpendicular to the fixed plate, and an adjusting block is provided at one end of the threaded rod away from the fixed rod.

[0011] The beneficial effects of the present utility model are as follows: By sliding the V-shaped frame on the fixed plate, the shielding area of the two stoppers for the exhaust port can be adjusted, so as to achieve the purpose of adjusting the cross-sectional area of the gas passage, and then the exhaust speed can be adjusted, reducing the situation that due to the fixed size of the exhaust port, the exhaust speed is too large or too small at different stages, which is beneficial to ensuring the stability of heat supply. At the same time, the fixed rod facilitates the rotation of the valve cover, avoiding the situation that the valve cover is difficult to adjust because the connection with the exhaust valve body is too tight due to long-term non-adjustment.

[0012] Parts not involved in this device are the same as the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the front view structural schematic diagram of the present utility model;

[0014] Figure 2 is the present utility model Figure 1 the enlarged view of part A in;

[0015] Figure 3 is the side view structural schematic diagram of the present utility model;

[0016] Figure 4 is the structural schematic diagram of the valve cover and the fixed plate in the present utility model;

[0017] Figure 5 is the present utility model Figure 4 the enlarged view of part B in;

[0018] In the figure: 1. Exhaust valve body; 2. Valve cover; 21. Exhaust port; 3. Fixed plate; 31. Sliding groove; 32. Stopper; 321. Inclined surface; 33. Fixed block; 331. Spring; 34. V-shaped frame; 341. Extension plate; 35. Connecting rod; 36. Connecting plate; 361. Threaded groove; 37. Fixed rod; 38. Threaded rod; 381. Adjusting block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Please refer toFigures 1-4 , the present utility model provides the following technical solutions: It includes an exhaust valve body 1 and a valve cover 2. The valve cover 2 is threadedly connected to the exhaust valve body 1. One side of the valve cover 2 is provided with a fixing plate 3. Exhaust ports 21 are provided on both the valve cover 2 and the fixing plate 3. Two stoppers 32 are slidably connected to the side of the fixing plate 3 away from the valve cover 2. One side of the stopper 32 is provided with an inclined surface 321. A V-shaped frame 34 is slidably connected to the side of the fixing plate 3 away from the valve cover 2. Connecting rods 35 are provided at both ends of the V-shaped frame 34. A connecting plate 36 is provided between the two connecting rods 35. A fixing rod 37 is fixedly connected to one side of the fixing plate 3. A threaded rod 38 is rotatably connected to one side of the fixing rod 37. A threaded groove 361 is provided on the connecting plate 36. The threaded rod 38 is threadedly connected to the threaded groove 361.

[0020] In this embodiment: It includes an exhaust valve body 1 and a valve cover 2. The valve cover 2 is located at the top of the exhaust valve body 1. By tightening or loosening the valve cover 2, the exhaust valve body 1 can be closed or opened. The valve cover 2 is threadedly connected to the exhaust valve body 1. Through the threaded connection, the distance between the valve cover 2 and the exhaust valve body 1 can be shortened or increased during rotation. One side of the valve cover 2 is provided with a fixing plate 3. The fixing plate 3 is fixedly connected to the valve cover 2, and the side of the fixing plate 3 away from the valve cover 2 is a plane. Exhaust ports 21 are provided on both the valve cover 2 and the fixing plate 3, and the two exhaust ports 21 are communicated. Therefore, the gas inside the exhaust valve body 1 can be discharged outward through the two exhaust ports 21. Two stoppers 32 are slidably connected to the side of the fixing plate 3 away from the valve cover 2. One side of the stopper 32 is provided with an inclined surface 321. The two stoppers 32 are symmetrical to each other. A V-shaped frame 34 is slidably connected to the side of the fixing plate 3 away from the valve cover 2. The inner side of the V-shaped frame 34 contacts the inclined surface 321. The sliding direction of the V-shaped frame 34 is perpendicular to the sliding direction of the stopper 32. When the V-shaped frame 34 slides towards the stopper 32, the two stoppers 32 can be made to slide towards the exhaust port 21 through the V-shaped frame 34. The distance between the two stoppers 32 is reduced, and the stoppers 32 will block the exhaust port 21, thereby reducing the cross-sectional area through which the gas passes and achieving the purpose of reducing the exhaust speed. Connecting rods 35 are provided at both ends of the V-shaped frame 34. The connecting rods 35 are slidably connected to the fixing plate 3, and the two connecting rods 35 are parallel to the sliding direction of the V-shaped frame 34. A connecting plate 36 is provided between the two connecting rods 35. Both ends of the connecting plate 36 are fixedly connected to the two connecting rods 35 respectively. A fixing rod 37 is fixedly connected to one side of the fixing plate 3. The fixing rod 37 facilitates the rotation of the valve cover 2, avoiding the situation that it is difficult to adjust the valve cover 2 because its connection with the exhaust valve body 1 is too tight due to long-term non-adjustment. A threaded rod 38 is rotatably connected to one side of the fixing rod 37. The threaded rod 38 is parallel to the connecting rod 35. A threaded groove 361 is provided on the connecting plate 36. The threaded rod 38 is threadedly connected to the threaded groove 361. When the threaded rod 38 rotates, through the connection between the threaded rod 38 and the threaded groove 361, the connecting plate 36 can be translated, thereby driving the V-shaped frame 34 to slide on one side of the fixing plate 3. When the V-shaped frame 34 slides away from the exhaust port 21, it can make way for the stopper 32, so that the shielding area of the stopper 32 on the exhaust port 21 gradually decreases, and the cross-sectional area through which the gas passes will increase, thereby increasing the exhaust speed. By sliding the V-shaped frame 34 on the fixing plate 3, the shielding area of the two stoppers 32 on the exhaust port 21 can be adjusted, thereby achieving the purpose of adjusting the cross-sectional area through which the gas passes, and the exhaust speed can be adjusted, reducing the situation that the exhaust speed is too large or too small at different stages due to the fixed size of the exhaust port 21, which is beneficial to ensuring the stability of heat supply.

[0021] On one side of the fixing plate 3, two sliding grooves 31 are provided, and two stoppers 32 are slidably connected to the sliding grooves 31; the two sliding grooves 31 are located on both sides of the exhaust port 21, and the sliding grooves 31 are perpendicular to the connecting rod 35. As the V-shaped frame 34 moves, the two stoppers 32 will slide along the sliding grooves 31.

[0022] Two fixing blocks 33 are provided on the fixing plate 3, and the fixing blocks 33 are connected to the stoppers 32 by springs 331; the fixing blocks 33 are fixedly connected to the fixing plate 3, and the distance between the springs 331 and the fixing plate 3 is greater than the thickness of the V-shaped frame 34 and the connecting rod 35. When the V-shaped frame 34 makes way for the stopper 32, the spring 331 can make the stopper 32 slide towards the fixing block 33.

[0023] Extension plates 341 are provided at both ends of the V-shaped frame 34, and the connecting rod 35 is fixedly connected to the extension plates 341, and the spring 331 does not contact the connecting rod 35; the connecting rod 35 is located between the spring 331 and the fixing plate 3, so as to avoid the situation that the spring 331 interferes with the movement of the V-shaped frame 34.

[0024] The two connecting rods 35 are parallel to each other, and the connecting plate 36 is perpendicular to the connecting rod 35; when the connecting plate 36 and the connecting rod 35 are translated, the V-shaped frame 34 can be driven to translate.

[0025] The two stoppers 32 are located inside the V-shaped frame 34, and the inner side of the V-shaped frame 34 is slidably connected to the inclined surface 321; as the V-shaped frame 34 moves, the inner side of the V-shaped frame 34 will slide on the inclined surface 321.

[0026] The fixing rod 37 is perpendicular to the fixing plate 3, and an adjusting block 381 is provided at one end of the threaded rod 38 away from the fixing rod 37; the adjusting block 381 is fixedly connected to the threaded rod 38, and it is convenient to rotate the threaded rod 38 through the adjusting block 381.

[0027] The working principle and usage process of the present utility model: When in use, it is convenient to rotate the valve cover 2 through the fixing rod 37, the threaded rod 38 can be rotated through the adjusting block 381, and the connecting plate 36 can be translated through the connection between the threaded rod 38 and the thread groove 361. When the connecting plate 36 moves towards the adjusting block 381, the V-shaped frame 34 will also move towards the exhaust port 21. The V-shaped frame 34 will push the stopper 32, and the two stoppers 32 will move towards the exhaust port 21 to block it, thereby reducing the gas discharge speed. When the connecting plate 36 and the V-shaped frame 34 move in the opposite direction, the V-shaped frame 34 will make way for the stopper 32, and the spring 331 will reduce the shielding area of the stopper 32 for the exhaust port 21, thereby increasing the gas discharge speed.

Claims

1. An adjustable valve for heating, ventilation and air conditioning, comprising an exhaust valve body (1) and a valve cover (2), characterized in that: The valve cover (2) is threadedly connected to the exhaust valve body (1); a fixing plate (3) is provided on one side of the valve cover (2); an exhaust port (21) is provided on both the valve cover (2) and the fixing plate (3); two stoppers (32) are slidably connected to the side of the fixing plate (3) away from the valve cover (2); a slope (321) is provided on one side of the stopper (32); a V-shaped frame (34) is slidably connected to the side of the fixing plate (3) away from the valve cover (2); connecting rods (35) are provided at both ends of the V-shaped frame (34); a connecting plate (36) is passed between the two connecting rods (35); a fixing rod (37) is fixedly connected to one side of the fixing plate (3); a threaded rod (38) is rotatably connected to one side of the fixing rod (37); a threaded groove (361) is provided on the connecting plate (36); the threaded rod (38) is threadedly connected to the threaded groove (361).

2. The adjustable valve for heating, ventilation and air conditioning according to claim 1, wherein: Two sliding grooves (31) are provided on one side of the fixing plate (3), and the two stoppers (32) are slidably connected to the sliding grooves (31).

3. The adjustable valve for heating, ventilation and air conditioning according to claim 2, characterized in that: Two fixing blocks (33) are provided on the fixing plate (3), and the fixing blocks (33) are connected to the stop block (32) via a spring (331).

4. The adjustable valve for heating, ventilation and air conditioning according to claim 3, wherein: Extension plates (341) are provided at both ends of the V-shaped frame (34), the connecting rod (35) is fixedly connected to the extension plates (341), and the spring (331) is not in contact with the connecting rod (35).

5. The adjustable valve for heating, ventilation and air conditioning according to claim 4, characterized in that: The two connecting rods (35) are parallel to each other, and the connecting plate (36) is perpendicular to the connecting rods (35).

6. The adjustable valve for heating, ventilation and air conditioning according to claim 5, characterized in that: The two stoppers (32) are located on the inner side of the V-shaped frame (34), and the inner side of the V-shaped frame (34) is slidably connected to the inclined surface (321).

7. An adjustable valve for heating, ventilation and air conditioning according to claim 6, characterized in that: The fixing rod (37) is perpendicular to the fixing plate (3), and an adjustment block (381) is provided at one end of the threaded rod (38) away from the fixing rod (37).

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