Water-saving lead-free stop valve

Abstract

The utility model relates to the field of stop valves, in particular to a water-saving lead-free stop valve, which comprises a valve body, two ends of the valve body are fixedly connected with connecting rings, the inside of the valve body is fixedly connected with a valve seat, and a water through port is arranged on the valve seat. When the check valve is used, the connecting rod can be pulled through the control handle, the connecting rod is close to the U-shaped plate, the reset spring shrinks, the water baffle is far away from the second round hole, the sealing plug is taken out from the second round hole, the sealing plate is taken out from the sealing groove, then the sliding rod is rotated anticlockwise, the sliding rod drives the valve rod to rotate anticlockwise, and the valve rod is moved downwards to drive the valve clack and the positioning block to move downwards. And the sliding rod continues to be further rotated until the valve clack extends out of the valve body from the second round hole, the valve clack is replaced, and the mode is short in time and convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of globe valves, in particular to a water-saving lead-free globe valve. Background Art

[0002] A globe valve, also called a stop valve, is one of the most widely used valves. It is popular because the friction between the sealing surfaces during the opening and closing process is small, it is relatively durable, the opening height is not large, and it is applicable not only to medium and low pressures but also to high pressures. The closing principle of the globe valve is that, relying on the valve stem pressure, the sealing surface of the valve flap is closely fitted with the sealing surface of the valve seat to prevent the medium from flowing through.

[0003] Generally, after being used for a period of time, due to the erosion of water flow inside the lead-free globe valve, the valve flap is easily worn and cannot be closely fitted with the valve seat, resulting in water leakage and waste. Currently, to replace the valve flap of the lead-free globe valve, the globe valve needs to be removed first. This method takes a long time and is relatively inconvenient. Therefore, a water-saving lead-free globe valve is proposed. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the disadvantage that when replacing the valve flap of the existing lead-free globe valve, the globe valve needs to be removed first, which takes a long time and is relatively inconvenient, and to propose a water-saving lead-free globe valve.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A water-saving lead-free globe valve, including a valve body, both ends of the valve body are fixedly connected with connection rings, a valve seat is fixedly connected inside the valve body, and a water passage is opened on the valve seat.

[0007] Preferably, a first round hole is opened at the top of the valve body, a lower valve cover is fixedly connected to the top of the valve body, an upper valve cover is slidably connected to the top of the lower valve cover, a fixing plate is fixedly connected to the surface of the upper valve cover, and a first sliding hole is opened on the connecting rod.

[0008] Preferably, a sliding rod is connected inside the first sliding hole, the bottom of the sliding rod is fixedly connected with a valve stem, the valve stem is slidably connected with the first round hole, a valve flap is installed at the bottom of the valve stem, a positioning block is installed at the bottom of the valve flap, the valve flap is slidably connected with the water passage opening, and the positioning block is located below the water passage opening.

[0009] Preferably, a second round hole is provided at the bottom of the valve body. A connecting plate is fixedly connected to the bottom of the valve body. A sealing groove is provided on the connecting plate. A sealing plate is slidably connected in the sealing groove. The sealing plate is fixedly connected to a water baffle. A sealing plug is fixedly connected to one side of the water baffle. The sealing plug is slidably connected to the second round hole. A rectangular groove is provided on one side of the water baffle.

[0010] Preferably, a U-shaped plate is fixedly connected to the bottom of the valve body. A second sliding hole is provided on the U-shaped plate. A connecting rod is slidably connected in the second sliding hole. One end of the connecting rod is fixedly connected to a rectangular plate. A clamping block is fixedly connected to one side of the rectangular plate. The clamping block is slidably connected to the rectangular groove.

[0011] Preferably, a return spring is fixedly connected to one side of the U-shaped plate. One end of the return spring is fixedly connected to the rectangular plate. A control handle is fixedly connected to one end of the sliding rod and the connecting rod. Threaded holes are provided on the upper valve cover and the lower valve cover.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] When the device is in use, the connecting rod can be pulled by the control handle. The connecting rod approaches the U-shaped plate, the return spring contracts, the water baffle moves away from the second round hole, the sealing plug is taken out of the second round hole, and the sealing plate is taken out of the sealing groove. Then, the sliding rod is rotated counterclockwise. The sliding rod drives the valve rod to rotate counterclockwise. The valve rod moves downward to drive the valve flap and the positioning block to move downward. The sliding rod is further rotated until the valve flap extends from the second round hole to the outside of the valve body to replace the valve flap. This method takes a short time and is relatively convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is an overall three-dimensional structural schematic diagram of a water-saving lead-free stop valve proposed by the present utility model;

[0015] Figure 2 is a three-dimensional sectional structural schematic diagram of a water-saving lead-free stop valve proposed by the present utility model;

[0016] Figure 3 is a three-dimensional structural schematic diagram of the connection relationship between the connecting plate and the sealing groove of a water-saving lead-free stop valve proposed by the present utility model.

[0017] In the figure: 1, valve body; 2, connecting ring; 3, valve seat; 4, water passing port; 5, first round hole; 6, lower valve cover; 7, upper valve cover; 8, fixing plate; 9, sliding rod; 10, valve rod; 11, valve flap; 12, positioning block; 13, second round hole; 14, connecting plate; 15, sealing groove; 16, water baffle; 17, sealing plug; 18, U-shaped plate; 19, connecting rod; 20, rectangular plate; 21, return spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Next, in combination with the accompanying drawings in the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0019] Referring to Figures 1-3 , a water-saving lead-free stop valve includes a valve body 1. Connecting rings 2 are fixedly connected to both ends of the valve body 1. A valve seat 3 is fixedly connected inside the valve body 1, and a water passage port 4 is opened on the valve seat 3.

[0020] Further, a first round hole 5 is opened at the top of the valve body 1. A lower valve cover 6 is fixedly connected to the top of the valve body 1. An upper valve cover 7 is slidably connected to the top of the lower valve cover 6. A fixing plate 8 is fixedly connected to the surface of the upper valve cover 7, and a first sliding hole is opened on the connecting rod 19.

[0021] Among them, the upper valve cover 7 and the lower valve cover 6 are fixed together by bolts. When the valve stem 10 needs to be replaced, the bolts are removed and the upper valve cover 7 and the lower valve cover 6 are separated.

[0022] Further, a sliding rod 9 is connected in the first sliding hole. The bottom of the sliding rod 9 is fixedly connected to a valve stem 10. The valve stem 10 is slidably connected to the first round hole 5. A valve flap 11 is installed at the bottom of the valve stem 10. A positioning block 12 is installed at the bottom of the valve flap 11. The valve flap 11 is slidably connected to the water passage port 4, and the positioning block 12 is located below the water passage port 4.

[0023] Among them, threads are opened on the inner wall of the first sliding hole, and threads are opened on the surface of the sliding rod 9. When water is not needed, the sliding rod 9 is rotated clockwise to drive the valve stem 10. The upward movement of the valve stem 10 drives the valve flap 11 and the positioning block 12 to move upward. The valve flap 11 blocks the water passage port 4 to prevent water flow. When water is needed, the sliding rod 9 is rotated counterclockwise to lower the valve flap 11 to allow water to pass through the water passage port 4.

[0024] Further, a second round hole 13 is opened at the bottom of the valve body 1. A connecting plate 14 is fixedly connected to the bottom of the valve body 1. A sealing groove 15 is opened on the connecting plate 14. A sealing plate is slidably connected in the sealing groove 15. The sealing plate is fixedly connected to a water blocking plate 16. A sealing plug 17 is fixedly connected to one side of the water blocking plate 16. The sealing plug 17 is slidably connected to the second round hole 13. A rectangular groove is opened on one side of the water blocking plate 16.

[0025] Among them, the second round hole 13 is sealed by the water blocking plate 16 and the sealing plug 17, and the sealing groove 15 and the sealing plate further seal the second round hole 13.

[0026] Furthermore, a U-shaped plate 18 is fixedly connected to the bottom of the valve body 1. A second sliding hole is formed in the U-shaped plate 18. A connecting rod 19 is slidably connected in the second sliding hole. One end of the connecting rod 19 is fixedly connected to a rectangular plate 20. A clamping block is fixedly connected to one side of the rectangular plate 20. The clamping block is slidably connected to the rectangular groove.

[0027] Among them, when the valve flap 11 needs to be replaced, the connecting rod 19 is pulled to make the rectangular plate 20 approach the U-shaped plate 18. The clamping block is removed from the rectangular groove, and the water baffle 16 and the sealing plug 17 are removed from the second round hole 13.

[0028] Furthermore, a return spring 21 is fixedly connected to one side of the U-shaped plate 18. One end of the return spring 21 is fixedly connected to the rectangular plate 20. A control handle is fixedly connected to one end of the sliding rod 9 and the connecting rod 19. Threaded holes are formed in the upper valve cover 7 and the lower valve cover 6.

[0029] Among them, the return spring 21 can make the water baffle 16 and the sealing plug 17 closely adhere to the second round hole 13 when the globe valve is in use. The control handle is used to control the sliding rod 9 and the connecting rod 19. The upper valve cover 7 and the lower valve cover 6 can be fixed together by using fixing bolts through the threaded holes.

[0030] The working principle of the present utility model:

[0031] When the valve core needs to be replaced, the connecting rod 19 is pulled through the control handle. The connecting rod 19 approaches the U-shaped plate 18. The return spring 21 contracts. The water baffle 16 moves away from the second round hole 13. The sealing plug 17 is taken out from the second round hole 13. The sealing plate is taken out from the sealing groove 15. Then the sliding rod 9 is rotated counterclockwise. The sliding rod 9 drives the valve stem 10 to rotate counterclockwise. The downward movement of the valve stem 10 drives the valve flap 11 and the positioning block 12 to move downward. The sliding rod 9 is further rotated until the valve flap 11 extends out of the valve body 1 from the second round hole 13, and the valve flap 11 is replaced. This method takes a short time and is relatively convenient.

[0032] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent replacements or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. A water-saving lead-free stop valve, comprising a valve body (1), characterized in that, Both ends of the valve body (1) are fixedly connected with connecting rings (2). Inside the valve body (1), a valve seat (3) is fixedly connected. A water passing port (4) is formed in the valve seat (3). A second round hole (13) is formed in the bottom of the valve body (1). A connecting plate (14) is fixedly connected to the bottom of the valve body (1). A sealing groove (15) is formed in the connecting plate (14). A sealing plate is slidably connected in the sealing groove (15). The sealing plate is fixedly connected with a water blocking plate (16). One side of the water blocking plate (16) is fixedly connected with a sealing plug (17). The sealing plug (17) is slidably connected with the second round hole (13). A rectangular groove is formed in one side of the water blocking plate (16). A U-shaped plate (18) is fixedly connected to the bottom of the valve body (1). A second sliding hole is formed in the U-shaped plate (18). A connecting rod (19) is slidably connected in the second sliding hole. One end of the connecting rod (19) is fixedly connected with a rectangular plate (20). A clamping block is fixedly connected to one side of the rectangular plate (20). The clamping block is slidably connected with the rectangular groove.

2. The water-saving lead-free stop valve according to claim 1, characterized in that, A first round hole (5) is formed in the top of the valve body (1). A lower valve cover (6) is fixedly connected to the top of the valve body (1). An upper valve cover (7) is slidably connected to the top of the lower valve cover (6). A fixing plate (8) is fixedly connected to the surface of the upper valve cover (7). A first sliding hole is formed in the connecting rod (19).

3. The water-saving lead-free stop valve according to claim 2, characterized in that, A sliding rod (9) is connected in the first sliding hole. The bottom of the sliding rod (9) is fixedly connected with a valve rod (10). The valve rod (10) is slidably connected with the first round hole (5). A valve flap (11) is installed at the bottom of the valve rod (10). A positioning block (12) is installed at the bottom of the valve flap (11). The valve flap (11) is slidably connected with the water passing port (4). The positioning block (12) is located below the water passing port (4).

4. The water-saving lead-free stop valve according to claim 3, characterized in that, A return spring (21) is fixedly connected to one side of the U-shaped plate (18). One end of the return spring (21) is fixedly connected with the rectangular plate (20). One ends of the sliding rod (9) and the connecting rod (19) are fixedly connected with a control handle. Threaded holes are formed in the upper valve cover (7) and the lower valve cover (6).

Images