A heating and ventilation valve for heating and ventilation equipment

Abstract

This utility model belongs to the field of HVAC valve technology, specifically relating to an HVAC valve for HVAC equipment. It includes a valve with pipes at both ends. A fixing pipe is fitted to the side wall of each pipe, with the left end of the fixing pipe having a larger diameter than the right end. An air extraction cylinder is fixedly connected to the side wall of the valve near its end face, and an inflation assembly is installed inside the air extraction cylinder. A sealing assembly is provided between the end faces of the valve and the end faces of the pipes. The sealing assembly includes a sealing ring fixedly connected to the end face of the valve. The sealing ring has a hollow structure, and a sealing groove is formed on the end face of the pipe, with the sealing ring fitting into the sealing groove. This utility model allows for convenient installation and disassembly of the valve, and achieves efficient sealing by increasing the contact area and adhesion between the sealing ring and the sealing groove.

Description

Technical Field

[0001] This utility model belongs to the field of HVAC valve technology, specifically relating to an HVAC valve for HVAC equipment. Background Technology

[0002] By changing the opening degree of HVAC valves, the flow rate of media such as water and steam can be precisely controlled, making the flow distribution within the system more reasonable. The flow rate of media flowing through radiators or air conditioning terminals can be adjusted to control the indoor temperature and meet the temperature control needs of different areas.

[0003] During long-term use, existing HVAC valves accumulate a large amount of scale and impurities inside the valve body and valve core. Traditionally, cleaning or replacing the valve body requires removing the flanges at both ends of the valve body. Since the flanges require a high degree of sealing, the sealing rings or gaskets need to be replaced again during flange reassembly. This process is cumbersome and complicated. In many cases, the gaskets need to be manually cut to the correct length, which can easily lead to gaps and poor sealing. Utility Model Content

[0004] The purpose of this utility model is to provide an HVAC valve for HVAC equipment, which can be easily installed and disassembled, and can achieve efficient sealing by increasing the contact surface and the fit between the sealing ring and the sealing groove.

[0005] The specific technical solution adopted by this utility model is as follows:

[0006] A heating and ventilation valve for heating and ventilation equipment includes a valve, with pipes provided at both ends of the valve, a fixed pipe fitted to the side wall of the pipe, the diameter of the left end of the fixed pipe being larger than the diameter of the right end, an air extraction cylinder fixedly connected to the side wall of the valve near the end face, an air injection component provided inside the air extraction cylinder, and a sealing component provided between the end faces of the valve and the end faces of the pipes.

[0007] Furthermore, the sealing assembly includes a sealing ring fixedly connected to the valve end face. The sealing ring has a hollow structure, and a sealing groove is provided on the pipe end face. The sealing ring is adapted to the sealing groove.

[0008] Furthermore, the inflation assembly includes a piston plate disposed inside the air extraction cylinder, a movable rod fixedly connected to the side wall of the piston plate, the other end of the movable rod passing through the air extraction cylinder and abutting against the end face of the fixed tube, a spring sleeved on the side wall of the movable rod, and an air outlet hole opened on the side wall of the valve located inside the air extraction cylinder, the air outlet hole communicating with the sealing ring.

[0009] Furthermore, the fixed pipe is threadedly connected to the valve.

[0010] Furthermore, a rubber strip is fixedly connected to the side wall of the piston plate, and the rubber strip is annular.

[0011] Furthermore, the fixed pipe sidewall is movably connected with multiple bolts, which are threadedly connected to the pipe.

[0012] Furthermore, a sealing strip is fixedly connected to the end face of the pipe near the valve.

[0013] The technical effects achieved by this utility model are as follows:

[0014] This utility model discloses an HVAC valve for HVAC equipment. Through the cooperation between the valve, pipe, fixed pipe, and sealing components, the valve can be easily installed and disassembled. At the same time, by increasing the contact surface and the fit between the sealing ring and the sealing groove, efficient sealing is achieved, avoiding gaps or instability caused by manually cutting the sealing gasket after assembly, thereby improving its sealing strength. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present invention;

[0016] Figure 2 This is a partial perspective view of the present invention;

[0017] Figure 3 This is a utility model Figure 2 A schematic diagram of the cross-sectional structure;

[0018] Figure 4 This is a partial structural schematic diagram of the inflatable component of this utility model;

[0019] Figure 5 This is the utility model Figure 3 Enlarged view of point A in the image.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Valve; 2. Pipeline; 3. Fixed pipe; 4. Air extraction cylinder; 5. Piston plate; 6. Moving rod; 7. Spring; 8. Rubber strip; 9. Sealing ring; 10. Sealing groove; 11. Air outlet; 12. Bolt; 13. Sealing strip. Detailed Implementation

[0022] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0023] like Figures 1-5As shown, an HVAC valve for HVAC equipment includes a valve 1, with pipes 2 installed at both ends of the valve 1. A fixed pipe 3 is fitted onto the side wall of the pipe 2, with the diameter of the left end of the fixed pipe 3 being larger than that of the right end. The fixed pipe 3 is threadedly connected to the valve 1. An air extraction cylinder 4 is fixedly connected to the side wall of the valve 1 near the end face, and an air inflator is installed inside the air extraction cylinder 4. A sealing assembly is installed between the end faces of the valve 1 and the end faces of the pipes 2.

[0024] like Figure 3 and Figure 5 As shown, the sealing assembly includes a sealing ring 9 fixedly connected to the end face of valve 1. The sealing ring 9 has a hollow structure, and a sealing groove 10 is provided on the end face of pipe 2. The sealing ring 9 is adapted to the sealing groove 10.

[0025] The valve 1 and the pipeline 2 are sealed by the cooperation between the sealing ring 9 and the sealing groove 10. During the rotation of the fixed pipe 3, compressed gas can be used to fill the sealing ring 9. By increasing the contact area and firmness between the sealing ring 9 and the sealing groove 10, the sealing effect is further improved.

[0026] like Figure 4 and Figure 5 As shown, the inflation assembly includes a piston plate 5 disposed inside the air extraction cylinder 4. A movable rod 6 is fixedly connected to the side wall of the piston plate 5. The other end of the movable rod 6 passes through the air extraction cylinder 4 and abuts against the end face of the fixed tube 3. A spring 7 is sleeved on the side wall of the movable rod 6. An air outlet 11 is opened on the side wall of the valve 1 inside the air extraction cylinder 4. The air outlet 11 is connected to the sealing ring 9.

[0027] Specifically, the suction cylinder 4, piston plate 5, and movable rod 6 form a syringe structure. When the piston plate 5 is pushed to move, the gas is squeezed into the sealing ring 9. When the valve 1 needs to be disassembled, the fixing tube 3 can be rotated in the opposite direction to release the connection between the valve 1 and the pipeline 2.

[0028] like Figure 4 As shown, a rubber strip 8 is fixedly connected to the side wall of the piston plate 5. The rubber strip 8 is annular. The rubber strip 8 can increase the seal between the piston plate 5 and the suction cylinder 4, making it easier to push air into the sealing ring 9 efficiently.

[0029] like Figure 1 and Figure 2 As shown, multiple bolts 12 are movably connected to the side wall of the fixed pipe 3, and the bolts 12 are threadedly connected to the pipe 2. The bolts 12 serve as a secondary fixing method in this design. During actual assembly, the user can choose whether to add bolts 12 according to their needs, which can enhance the stability of the fixed pipe 3 and prevent shaking or displacement.

[0030] like Figure 3As shown, a sealing strip 13 is fixedly connected to the end face of pipe 2 near valve 1. By setting the sealing strip 13, a secondary seal is achieved between valve 1 and pipe 2. The double sealing design can effectively prevent leakage of the medium in pipe 2, achieving both convenient installation and sealing.

[0031] The working principle of this utility model is as follows: When connecting valve 1 and pipe 2, rotate fixed pipe 3 and use threaded connection to move fixed pipe 3 toward valve 1. At the same time, the end face of fixed pipe 3 pushes movable rod 6 to move. Movable rod 6 drives piston plate 5 to move in vacuum cylinder 4 to compress the gas in vacuum cylinder 4. The compressed gas enters sealing ring 9 through air outlet 11. Sealing ring 9 is in a slow expansion state. After fixed pipe 3 is rotated to the appropriate position, sealing ring 9 is inserted into sealing groove 10. Through full contact between the two, efficient sealing is achieved.

[0032] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A heating and cooling valve for a heating and cooling device, characterized by: The device includes a valve (1), with pipes (2) installed at both ends of the valve (1). A fixed pipe (3) is installed on the side wall of the pipe (2). The diameter of the left end of the fixed pipe (3) is larger than that of the right end. An air pump (4) is fixedly connected to the side wall of the valve (1) near the end face. An air pump (4) is installed inside the air pump (4). A sealing component is installed between the end faces of the valve (1) and the end faces of the pipe (2).

2. The heating and cooling valve according to claim 1, wherein: The sealing assembly includes a sealing ring (9) fixedly connected to the end face of the valve (1). The sealing ring (9) has a hollow structure. A sealing groove (10) is provided on the end face of the pipe (2). The sealing ring (9) is adapted to the sealing groove (10).

3. The heating and cooling valve for a heating and cooling apparatus according to claim 2, wherein: The inflation assembly includes a piston plate (5) disposed inside the air extraction cylinder (4). A movable rod (6) is fixedly connected to the side wall of the piston plate (5). The other end of the movable rod (6) passes through the air extraction cylinder (4) and abuts against the end face of the fixed tube (3). A spring (7) is sleeved on the side wall of the movable rod (6). An air outlet (11) is opened on the side wall of the valve (1) inside the air extraction cylinder (4). The air outlet (11) is connected to the sealing ring (9).

4. The heating and cooling valve of claim 1, wherein: The fixed pipe (3) is threadedly connected to the valve (1).

5. A heating and ventilation valve for heating and ventilation equipment according to claim 3, characterized in that: A rubber strip (8) is fixedly connected to the side wall of the piston plate (5), and the rubber strip (8) is annular.

6. A heating and ventilation valve for heating and ventilation equipment according to claim 1, characterized in that: The side wall of the fixed pipe (3) is movably connected with multiple bolts (12), and the bolts (12) are threadedly connected to the pipe (2).

7. A heating and ventilation valve for heating and ventilation equipment according to claim 1, characterized in that: A sealing strip (13) is fixedly connected to the end face of the pipe (2) near the valve (1).

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