Cold and heat balance valve

Abstract

The utility model discloses a cold and heat balance valve which comprises a valve body, a valve cover is fixedly connected to the upper end of the valve body, a valve rod is rotationally connected to the middle of the valve cover, a rotating handle is connected to the upper end of the valve rod through a bolt, a fixing rod is fixedly connected to the lower end of the valve rod, and a valve plug is fixedly connected to the lower end of the fixing rod. A valve cavity is formed in the valve body and comprises a water inlet channel and a water outlet channel. The upper end face and the lower end face of the valve cavity are each provided with an arc-shaped non-return part to prevent water flow from flowing back. The arc-shaped non-return parts are located on the two sides of the valve plug. Connecting mechanisms are fixedly welded to the two ends of the valve body, and a filtering mechanism is clamped in the connecting mechanism at one end of the water inlet channel in the valve body. The filtering mechanism is arranged in the first connecting disc, impurities contained in water in a pipeline can be effectively filtered out, and accumulation of impurity particles at the valve cavity and the valve rod is reduced; and the filtering mechanism is clamped in the first connecting disc, so that the stability of the filtering mechanism in the first connecting disc is improved.

Description

Technical Field

[0001] The utility model relates to a balancing valve, in particular to a cold and heat balancing valve. Background Art

[0002] The balancing valve is a regulating valve with a special data locking function. It adopts a direct-flow valve body structure and has better equal percentage flow characteristics. It can reasonably distribute the flow and effectively solve the problem of uneven room temperature in the heating system. At the same time, it can accurately adjust the pressure drop and flow.

[0003] The existing heat and cold balancing valve installed on the pipeline has impurities in the water in the pipeline. When the water flows, the impurity particles are transported to the inside of the valve cavity. The water in the valve cavity easily enters the valve stem, causing the accumulation of impurity particles in the valve cavity and the valve stem, forming a blockage. Not only is the inside of the valve cavity difficult to clean, increasing the replacement cost, but the valve stem is also prone to jamming when the handle drives it to rotate, affecting its use. Utility Model Content

[0004] In order to solve the deficiencies of the above technologies, the utility model provides a cold and heat balancing valve.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a heat and cold balance valve, comprising a valve body, a valve cover fixedly connected to the upper end of the valve body, a valve stem sleeved on the middle part of the valve cover, a turning handle bolted to the upper end of the valve stem, a fixing rod fixedly connected to the lower end of the valve stem, and a valve plug fixedly connected to the lower end of the fixing rod;

[0006] A valve cavity is provided inside the valve body, and the valve cavity includes a water inlet channel and a water outlet channel; the upper and lower end surfaces of the valve cavity are both provided with arc-shaped check parts to prevent water from flowing back, and the arc-shaped check parts are located on both sides of the valve plug;

[0007] Connecting mechanisms are fixedly welded at both ends of the valve body, and a filtering mechanism is clamped inside the connecting mechanism at one end of the water inlet channel in the valve body to filter impurities in the water flowing into the valve cavity.

[0008] Furthermore, a pair of pressure measuring nozzles are symmetrically fixedly connected to the front end of the valve body, and a sealing ring is provided at the connection between the pressure measuring nozzles and the valve body.

[0009] Furthermore, the connecting mechanism includes a water inlet port, a water outlet port and a connecting plate; the connecting plate includes a first connecting plate and a second connecting plate, the open end of the water inlet channel is provided with a water inlet port, and the end of the water inlet port is fixedly welded to the first connecting plate; the open end of the water outlet channel is provided with a water outlet port, and the end of the water outlet port is fixedly welded to the second connecting plate.

[0010] Furthermore, the first connecting plate and the second connecting plate are both provided with a plurality of mounting screw holes at equal distances along the circumference for connecting pipes.

[0011] Furthermore, the filter mechanism includes a filter screen and an annular plate; a slot is provided on the inner wall of the annular plate to match and connect the filter screen; and the annular plate is snap-connected in the first connecting plate.

[0012] Furthermore, springs are welded to the top and bottom of the annular plate, and the other end of the spring-welded annular plate is fixedly connected to a connecting block; a first opening is provided at the top of the inner wall of the first connecting disk to clamp the connecting block connected to the spring at the top of the annular plate, and a second opening is provided at the bottom of the inner wall of the first connecting disk to clamp the connecting block connected to the spring at the bottom of the annular plate.

[0013] The utility model discloses a heat and cold balancing valve, which can effectively filter impurities in water in a pipeline by arranging a filtering mechanism inside a first connecting disk, thereby reducing the situation where impurity particles are transported into the valve cavity and the valve stem, reducing the accumulation of impurity particles in the valve cavity and the valve stem, and facilitating maintenance and use; the filtering mechanism is clamped to the inside of the first connecting disk, thereby increasing the stability of the filtering mechanism inside the first connecting disk; when the filter screen filters out too many impurities, only the filter screen needs to be cleaned to achieve smooth water flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a main cross-sectional view of the present utility model.

[0016] Figure 3 It is a cross-sectional view of the connector in the present invention.

[0017] In the figure: 1. Valve body; 2. Valve cover; 3. Turning handle; 4. Valve chamber; 5. Water inlet channel; 6. Water outlet channel; 7. Arc-shaped check portion; 8. Valve plug; 9. Valve stem; 10. Fixing rod; 11. Pressure measuring nozzle; 12. Connecting block; 13. Connecting plate; 14. Mounting screw hole; 15. Spring; 16. Filter screen; 17. Ring plate. DETAILED DESCRIPTION

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0019] A heat and cold balance valve comprises a valve body 1, the upper end of the valve body 1 is fixedly connected to a valve cover 2, the middle part of the valve cover 2 is sleeved with a valve stem 9, the upper end of the valve stem 9 is bolted to a turning handle 3, the lower end of the valve stem 9 is fixedly connected to a fixing rod 10, and the lower end of the fixing rod 10 is fixedly connected to a valve plug 8;

[0020] A valve chamber 4 is provided inside the valve body 1, and the valve chamber 4 includes a water inlet channel 5 and a water outlet channel 6. The upper and lower end surfaces of the valve chamber 4 are both provided with arc-shaped check portions 7 to prevent water from flowing back. The arc-shaped check portions 7 are located on both sides of the valve plug 8.

[0021] Connecting mechanisms are fixedly welded at both ends of the valve body 1 , and a filtering mechanism is clamped inside the connecting mechanism at one end of the water inlet channel 5 in the valve body 1 for filtering impurities entering the valve cavity 4 through the water flow.

[0022] Specifically, a pair of pressure measuring nozzles 11 are symmetrically fixedly connected to the front end of the valve body 1, and a sealing ring is provided at the connection between the pressure measuring nozzle 11 and the valve body 1. The connecting mechanism includes a water inlet port, a water outlet port, and a connecting plate 13; the connecting plate 13 includes a first connecting plate and a second connecting plate, the open end of the water inlet channel 5 is provided with a water inlet port, and the end of the water inlet port is fixedly welded to the first connecting plate; the open end of the water outlet channel 6 is provided with a water outlet port, and the end of the water outlet port is fixedly welded to the second connecting plate. A number of mounting screw holes 14 are provided on the first connecting plate and the second connecting plate at equal distances along the circumference for connecting pipes. The filtering mechanism includes a filter screen 16 and an annular plate 17; the inner wall of the annular plate 17 is provided with a slot to cooperate with the connection of the filter screen 16; the annular plate 17 is snapped into the connecting plate 13. A spring 15 is welded to the top and bottom of the annular plate 17, and the other end of the spring 15 welded to one end of the annular plate 17 is fixedly connected to a connecting block 12; a first opening is provided at the top of the inner wall of the first connecting disk to clamp the connecting block 12 connected to the spring 15 at the top of the annular plate 17, and a second opening is provided at the bottom of the inner wall of the first connecting disk to clamp the connecting block 12 connected to the spring 15 at the bottom of the annular plate 17.

[0023] This embodiment provides a specific connection method and principle for the structure of a heat and cold balance valve; a heat and cold balance valve, such as Figure 1 As shown in the schematic diagram of the overall structure of a heat and cold balance valve, it includes a valve body 1, a valve cover 2 is fixedly welded to the upper end of the valve body 1, a valve stem 9 is sleeved in the middle of the valve cover 2, the valve stem 9 is rotatably connected to the inside of the valve, the upper end of the valve stem 9 is bolted to a turning handle 3, the lower end of the valve stem 9 is fixedly connected to a fixing rod 10, and the lower end of the fixing rod 10 is fixedly connected to a valve plug 8; by rotating the turning handle 3 to rotate the valve stem 9, the valve stem 9 drives the fixing rod 10 and the valve plug 8 to move up and down, thereby controlling the inflow and outflow and flow rate of water;

[0024] like Figure 2 As shown in the main cross-sectional view of a heat and cold balance valve, a valve body 1 is provided with a valve cavity 4 inside, and the valve cavity 4 includes a water inlet channel 5 and a water outlet channel 6; the upper end surface and the lower end surface of the valve cavity 4 are both provided with arc-shaped check valves to prevent water backflow, and the arc-shaped check valves abut against both sides of the valve plug 8;

[0025] A pair of pressure measuring nozzles 11 are symmetrically fixedly connected to the front end of the valve body 1. The pair of pressure measuring nozzles 11 are respectively arranged on the upper side of the water inlet channel 5 and the upper side of the water outlet channel 6 to facilitate the detection of the pressure in the water inlet channel 5 and the water outlet channel 6. A sealing ring is provided at the connection between the pressure measuring nozzle 11 and the valve body 1.

[0026] The open end of the water inlet channel 5 in the valve body 1 is provided with a water inlet port, the end of which is welded to a first connecting plate. The open end of the water outlet channel 6 in the valve body 1 is provided with a water outlet port, the end of which is welded to a second connecting plate.

[0027] like Figure 3 As shown in the structural diagram of a connector in a cold and heat balancing valve, a filtering mechanism is clamped inside the first connecting disk; a first opening is provided at the top of the inner wall of the first connecting disk, and a second opening is provided at the bottom of the inner wall of the first connecting disk; the filtering mechanism includes a filter screen 16 and an annular plate 17, and a clamping groove is provided on the inner wall of the annular plate 17, and the filter screen 16 is placed inside the clamping groove; a spring 15 is welded to the top and the bottom of the annular plate 17, and the spring 15 is welded to one end of the annular plate 17 and the other end is welded to a connecting block 12; through the action of the spring 15, the connecting block 12 is clamped to the inside of the first opening and the second opening, so that the annular plate 17 is clamped to the inside of the first connecting disk.

[0028] Before the water flows through the first connecting plate and enters the water inlet channel 5, the impurities in the water are filtered through the filter 16, reducing the accumulation of impurities in the valve cavity 4 and the valve stem 9, ensuring the smooth flow of water; if the filtered impurities affect the inflow of water inside the pipeline, the filter 16 is cleaned, and there is no need to clean the inside of the valve cavity 4 or replace the balancing valve, which is convenient for operation.

[0029] The above-mentioned implementation manner is not a limitation of the present invention, and the present invention is not limited to the above-mentioned examples. Any changes, modifications, additions or substitutions made by technicians in this technical field within the scope of the technical solution of the present invention also fall within the scope of protection of the present invention.

Claims

1. A heat and cold balance valve, comprising a valve body (1), characterized in that: The upper end of the valve body (1) is fixedly connected to a valve cover (2), the middle of the valve cover (2) is sleeved with a valve stem (9), the upper end of the valve stem (9) is bolted to a turning handle (3), the lower end of the valve stem (9) is fixedly connected to a fixing rod (10), and the lower end of the fixing rod (10) is fixedly connected to a valve plug (8); A valve cavity (4) is provided inside the valve body (1), and the valve cavity (4) includes a water inlet channel (5) and a water outlet channel (6); an arc-shaped check portion (7) is provided on both the upper end surface and the lower end surface of the valve cavity (4) to prevent water from flowing back, and the arc-shaped check portion (7) is located on both sides of the valve plug (8); Connecting mechanisms are fixedly welded at both ends of the valve body (1), and a filtering mechanism is clamped inside the connecting mechanism at one end of the water inlet channel (5) in the valve body (1) for filtering impurities entering the valve cavity (4) through the flowing water; The connecting mechanism comprises a water inlet port, a water outlet port and a connecting plate (13); the connecting plate (13) comprises a first connecting plate and a second connecting plate, the opening end of the water inlet channel (5) is provided with a water inlet port, and the end of the water inlet port is fixedly welded to the first connecting plate; the opening end of the water outlet channel (6) is provided with a water outlet port, and the end of the water outlet port is fixedly welded to the second connecting plate; The filtering mechanism comprises a filter screen (16) and an annular plate (17); a slot is provided on the inner wall of the annular plate (17) to match and connect the filter screen (16); and the annular plate (17) is snap-connected in the first connecting plate.

2. The heat and cold balance valve according to claim 1, characterized in that: A pair of pressure measuring nozzles (11) are symmetrically and fixedly connected to the front end of the valve body (1), and a sealing ring is provided at the connection between the pressure measuring nozzles (11) and the valve body (1).

3. The heat and cold balance valve according to claim 1, characterized in that: The first connecting plate and the second connecting plate are both provided with a plurality of mounting screw holes (14) at equal distances along the circumference for connecting pipes.

4. The heat and cold balance valve according to claim 1, characterized in that: A spring (15) is welded to the top and bottom of the annular plate (17), and the other end of the spring (15) welded to one end of the annular plate (17) is fixedly connected to a connecting block (12); a first opening is provided at the top of the inner wall of the first connecting disk to clamp the connecting block (12) connected to the spring at the top of the annular plate (17), and a second opening is provided at the bottom of the inner wall of the first connecting disk to clamp the connecting block (12) connected to the spring at the bottom of the annular plate (17).

Images