A check valve for easy installation

Abstract

The utility model relates to industrial and civilian valve technical field discloses a kind of installation's check valve, including the outer wall of the installation pipe is inward side and is uniformly provided with groove three, the inner wall of groove three is provided with limit slot, the inner wall of limit slot is slidably connected with limit ring, the inner wall middle part of limit ring is fixedly connected with ball, the outer wall of ball is fixedly connected with piston one, the front end outer wall of piston one is slidably connected with hydraulic pipe in the utility model, in the utility model, by ball being extruded so that piston one moves extruded liquid in hydraulic pipe to make piston two move in opposite direction, drive and its fixed connection extruding block jam hard water pipe, with limit rod, the rotation rod two is limited in the clamping groove, so that the rotation rod limits extruding block, reach the purpose of quick installation, eliminate the screw and other fasteners needed in traditional valve installation, make installation quick and convenient, and do not need to use too many installation tools.

Description

Technical Field

[0001] This utility model relates to the field of industrial and civil valve technology, and in particular to a test valve that is easy to install. Background Technology

[0002] A test valve, also known as a non-backflow valve, reverse valve, or reverse stopper, is a type of valve commonly used in engineering, machinery, and fluid control. It is used to control the direction of fluid flow, and its main function is to prevent fluid from flowing back. Test valves typically allow fluid to flow freely in one direction while automatically closing in the other direction to prevent backflow.

[0003] The primary function of calibration valves is to ensure that fluid flows in the intended direction within a piping system, while preventing backflow that could damage or disrupt the system's normal operation. Therefore, they are widely used in various systems, including water treatment, pharmaceuticals, and food and beverage processing. In these fields, the selection and installation of calibration valves are crucial, as they directly affect the safety, efficiency, and stability of the fluid system.

[0004] Most existing calibration valves are cumbersome to install, often taking a lot of time and slowing down the construction period. Moreover, most of them cannot close the valve to reduce the flow rate when the liquid flow rate is too high, cannot limit the water flow speed and water pressure passing through the valve, and cannot prevent the water hammer effect caused by the sudden opening and closing of the valve when the liquid flows through at high speed, which can damage the connected machinery. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an easy-to-install calibration valve, aiming to improve the problems of existing technologies that require a lot of installation time, which slows down the construction period, cannot close the valve to reduce the flow rate when the liquid flow rate is too high, cannot limit the water flow speed and water pressure through the valve, and cannot avoid the water hammer effect caused by the sudden opening and closing of the valve when the liquid flows through at high speed, which leads to damage to the connected machinery.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a test valve that is easy to install, comprising an installation pipe, wherein the outer wall of the installation pipe is provided with a groove three on one side, the inner wall of the groove three is provided with a limit groove, the inner wall of the limit groove is slidably connected to a limit ring, a ball is fixedly connected to the middle of the inner wall of the limit ring, a piston one is fixedly connected to the outer wall of the ball, a hydraulic pipe is slidably connected to the outer wall of the front end of the piston one, a piston two is slidably connected to the left end of the hydraulic pipe, a pressing block is fixedly connected to the rear side of the piston two, and anti-slip pads are fixedly connected to one side of the pressing block. The outer wall of the mounting tube has a second groove on one side. The inner side of the second groove is slidably connected to the outer wall of the extrusion block. A rotating shaft is fixedly connected to the outer wall of the left end of both sides of the mounting tube. A rotating rod is fixedly connected to the outer wall of the rotating shaft. A fixing block is fixedly connected to the front and rear sides of the outer wall of the mounting tube. A slot is opened in the middle of the fixing block. A groove is fixedly connected to the rear top of the fixing block. A first groove is opened in the middle of the front end of the groove cylinder. A second spring is fixedly connected to the inner wall of the first groove. A second limit rod is fixedly connected to the other end of the second spring. A pressure control mechanism is provided at the left end of the mounting tube.

[0007] As a further description of the above technical solution:

[0008] The pressure control mechanism includes a valve body, both ends of which are connected to the inward side of the mounting pipe. Connection ports are provided at both ends of the valve body. The left end of each connection port is fixedly connected to the right end of the mounting pipe. Fixed rods are fixedly connected to the inner walls of the connection ports, and cylindrical rods are fixedly connected to the outer walls of the fixed rods. A limit block is fixedly connected to the right end of the cylindrical rod. A spring is fixedly connected to the outward side of the limit block. A movable baffle is fixedly connected to the other end of the spring. Limit rods are fixedly connected to the upper and lower ends of the right side of the movable baffle. A cylindrical groove is provided in the middle of the upper end of the valve body. A connecting shaft is slidably connected to the inner wall of the cylindrical groove. A rotating baffle is fixedly connected to the lower end of the connecting shaft.

[0009] As a further description of the above technical solution:

[0010] The middle part of the movable baffle is slidably connected to the outer wall of the cylindrical rod, and a rotating disk is fixedly connected to the upper end of the connecting shaft.

[0011] As a further description of the above technical solution:

[0012] The valve body has mounting handles fixedly connected to both outer walls, and the mounting handles have anti-slip sleeves fixedly connected to the middle outer wall.

[0013] As a further description of the above technical solution:

[0014] A connecting pipe is fixedly connected to the front side of the valve body, a plug is slidably connected to the top end of the connecting pipe, and a sealing ring is fixedly connected to the end of the connecting pipe.

[0015] As a further description of the above technical solution:

[0016] A fixing plate 1 is fixedly connected to the right end of the hydraulic pipe, and a fixing plate 2 is fixedly connected to the left end of the hydraulic pipe.

[0017] As a further description of the above technical solution:

[0018] The inner side of the slot is in contact with the outer wall of the rotating rod, and the outer wall of the second limiting rod is in contact with the outer wall of the rotating rod.

[0019] As a further description of the above technical solution:

[0020] The inner wall of the installation pipe is provided with a hard water pipe, and the inner wall of the second trench is slidably connected to the outer wall of the extrusion block.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the sphere is squeezed, causing piston one to move and squeeze the liquid in the hydraulic pipe, thereby causing piston two to move in the opposite direction. This drives the squeezing block fixedly connected to it to jam the hard water pipe. The limiting rod is used to limit the rotating rod two in the slot, so that the rotating rod limits the squeezing block, achieving the purpose of quick installation. This eliminates the need for screws and other fasteners required for traditional valve installation, making installation quick and convenient, and requiring no excessive installation tools.

[0023] 2. In this utility model, the sliding connection between the movable baffle and the cylindrical rod, plus the force given to the movable baffle by the spring, prevents low-speed liquid from passing through. When the liquid flow rate is too high, the limiting rod will limit the rotation of the baffle, preventing high-speed liquid from flowing in. This prevents water hammer caused by the sudden opening or closing of the valve when the liquid flow rate is too high. It also prevents damage to the equipment connected to the other end of the water pipe due to excessive input liquid flow rate. At the same time, it limits the water flow rate and water pressure through the valve and detects whether there is leakage. Attached Figure Description

[0024] Figure 1 A perspective view of the front side of the valve body of a test valve that is easy to install according to this utility model;

[0025] Figure 2 A partial structural diagram of the rotating rod of a calibration valve that is easy to install, as proposed in this utility model;

[0026] Figure 3 A disassembled diagram of the hydraulic pipe structure of a test valve that is easy to install according to this utility model;

[0027] Figure 4 This is a structural diagram illustrating a test valve that is easy to install, as proposed in this utility model.

[0028] Figure 5 This is a partial structural cross-sectional view of a calibration valve that is easy to install, as proposed in this utility model.

[0029] Legend:

[0030] 1. Installation pipe; 2. Pressure control mechanism; 201. Valve body; 202. Fixed rod; 203. Moving baffle; 204. Limiting rod one; 205. Connecting shaft; 206. Rotating disc; 207. Cylindrical groove; 208. Connection port; 209. Rotating baffle; 210. Limiting block; 211. Cylindrical rod; 212. Spring one; 3. Rotating rod; 4. Rotating shaft; 5. Groove one; 6. Spring two; 7. Limiting rod two; 8. 9. Fixing block; 10. Slot; 11. Grooved cylinder; 12. Connecting pipe; 13. Piston 1; 14. Fixing plate 1; 15. Limiting ring; 16. Ball; 17. Anti-slip pad; 18. Extrusion block; 19. Fixing plate 2; 20. Piston 2; 21. Anti-slip sleeve; 22. Hydraulic pipe; 23. Groove 2; 24. Groove 3; 25. Limiting groove; 26. Hard water pipe; 27. Plug; 28. Mounting handle; 29. ​​Sealing ring. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see the appendix Figure 1 - Appendix Figure 3This utility model provides an embodiment of a test valve that is easy to install, including an installation pipe 1. The outer wall of the installation pipe 1 has a groove 23 on its inner side. A limiting groove 24 is formed on the inner wall of the groove 23. A limiting ring 14 is slidably connected to the inner wall of the limiting groove 24. A ball 15 is fixedly connected to the middle of the inner wall of the limiting ring 14. A piston 12 is fixedly connected to the outer wall of the ball 15. A hydraulic pipe 21 is slidably connected to the outer wall of the front end of the piston 12. A piston 29 is slidably connected to the left end of the hydraulic pipe 21. A compression block 17 is fixedly connected to the rear side of the piston 29. Anti-slip pads 16 are fixedly connected to the inner side of the compression block 17. The outer wall of the installation pipe 1 has grooves on its outer side. The inner side of the second groove 22 is slidably connected to the outer wall of the extrusion block 17. The outer walls of the left ends of both sides of the installation tube 1 are fixedly connected to the rotating shaft 4. The outer walls of the rotating shaft 4 are fixedly connected to the rotating rod 3. The front and rear sides of the outer wall of the installation tube 1 are fixedly connected to the fixing block 8. The fixing block 8 has a slot 9 in the middle. The top rear side of the fixing block 8 is fixedly connected to the groove cylinder 10. The front middle of the groove cylinder 10 has a groove 5. The inner wall of the groove 5 is fixedly connected to the spring 6. The other end of the spring 6 is fixedly connected to the limit rod 7. The left end of the installation tube 1 is provided with a pressure control mechanism 2. The inner wall of the installation tube 1 is provided with a hard water pipe 25. The inner wall of the second groove 22 is slidably connected to the outer wall of the extrusion block 17.

[0033] Specifically, the hard water pipe 25 squeezes the ball 15, causing the piston 12, which is fixedly connected to it, to squeeze the liquid in the liquid pipe 21. This forces the piston 19 at the other end of the hydraulic pipe. The piston 19 drives the squeezing block 17 to fix the hard water pipe 25 in the installation pipe 1. Then, the limiting rod 7 is pressed inward, and the rotating rod 3 is pressed down to fit against the slot 9. Finally, the limiting rod 7 is released so that its surface fits against the outer wall of the rotating rod 3, thus fixing the rotating rod 3 in the slot 9. The rotating rod 3 then fits against the outer wall of the squeezing block 17, thus fixing the squeezing block 17.

[0034] Please see the appendix Figure 4 - Appendix Figure 5The pressure control mechanism 2 includes a valve body 201. Both ends of the valve body 201 are connected to the inward side of the mounting pipe 1. Connection ports 208 are provided at both ends of the valve body 201. The left end of the connection port 208 is fixedly connected to the right end of the mounting pipe 1. Fixed rods 202 are fixedly connected vertically to the inner wall of the connection port 208. A cylindrical rod 211 is fixedly connected to the outer wall of the fixed rod 202. A limit block 210 is fixedly connected to the right end of the cylindrical rod 211. A spring 21 is fixedly connected to the outward side of the limit block 210. 2. A movable baffle 203 is fixedly connected to the other end of the spring 212. Limit rods 204 are fixedly connected to the upper and lower ends of the right side of the movable baffle 203. A cylindrical groove 207 is opened in the middle of the upper end of the valve body 201. A connecting shaft 205 is slidably connected to the inner wall of the cylindrical groove 207. A rotating baffle 209 is fixedly connected to the lower end of the connecting shaft 205. The middle part of the movable baffle 203 is slidably connected to the outer wall of the cylindrical rod 211. A rotating disk 206 is fixedly connected to the upper end of the connecting shaft 205.

[0035] Specifically, when liquid flows in from the direction of the rotating baffle 209, the liquid cannot flow out because the moving baffle 203 is limited by the fixed rod 202. When liquid flows in from the direction of the rotating baffle 209, if the liquid flow rate is fast enough and the pressure is large enough, it will counteract the force given to the moving baffle 203 by the spring 212, causing the moving baffle 203 to move backward, and the liquid will enter the valve body 201. Rotating the rotating disk 206 will cause the rotating baffle 209 connected to it to rotate, and the liquid will pass through the valve. If the liquid pressure is too high and the flow rate is too fast, the moving baffle 203 will move to the bottom, and the limiting rod 204 fixedly connected to it will also move backward, making it impossible for the rotating baffle 209 to rotate easily.

[0036] Please see the appendix Figure 1 - Appendix Figure 2 The valve body 201 has two outer walls fixedly connected to mounting handles 27, and the middle outer wall of the mounting handles 27 is fixedly connected to an anti-slip sleeve 20. The valve body 201 has a connecting pipe 11 fixedly connected to the front side, the top end of the connecting pipe 11 is slidably connected to a plug 26, and the end of the connecting pipe 11 is fixedly connected to a sealing ring 28. The right end of the hydraulic pipe 21 is fixedly connected to a fixing piece 13, and the left end of the hydraulic pipe 21 is fixedly connected to a fixing piece 28. The inner side of the slot 9 is in contact with the outer wall of the rotating rod 3, and the outer wall of the limiting rod 2 7 is in contact with the outer wall of the rotating rod 3.

[0037] Specifically, the handle 27 can be used to hold the valve in place by hand during installation. The top of the connecting pipe 11 can be used to connect a thermometer or other detection device. When no additional detection device is needed, the plug 26 is used to seal the connecting pipe 11. The fixing plate 13 is used to limit the piston 12 from falling off due to accident. The fixing plate 18 is also used to limit the piston 19 from falling off due to accident.

[0038] Working Principle: When the hard water pipe 25 enters from the left end of the installation pipe 1, it causes the ball 15, which is slidably connected to the limiting ring 14 fixed to the outer surface and is in the limiting groove 24, to move outward. This causes the piston 12, which is fixedly connected to it, to move in the same direction, causing the liquid in the hydraulic pipe 21 to move. This causes the piston 29 to move outward from the hydraulic pipe 21, causing the squeezing blocks 17 on both sides fixedly connected to the piston 29 and the anti-slip pad 16 on the surface facing the hard water pipe 25 to squeeze inward. Then, the limiting rod 27 is pressed into the groove 5 in the grooved cylinder 10. Then, the rotating rod 3 is rotated along the rotating shaft 4 and engaged in the slot 9. Then, the limiting rod 27 is released and reset by the spring 26, achieving the purpose of quick installation. This eliminates the need for screws and other fasteners required for traditional valve installation, making installation quick and convenient, and requiring no installation tools. When liquid flows in from the rotating baffle 209 side, the movable baffle 203 will be restricted by the fixed rod 202 and cannot move. When liquid flows in from the movable baffle 203 side, if the flow rate is high enough, the movable baffle 203 will counteract the force given by the spring 212 and move along the cylindrical rod 211 towards the rotating baffle 209, allowing the liquid to flow into the valve body 201. Rotating the rotating disk 206 causes the rotating baffle 209, which is fixedly connected to it via the connecting shaft 205, to rotate, allowing the liquid to flow out. When the liquid flow rate is too fast, it will restrict the movable baffle 203 from moving. When baffle 203 is pushed to the bottom, the limiting rod 204 and the rotating baffle 209 are limited, making it difficult for the rotating baffle 209 to open easily. At this time, the rotating disk 206 is rotated forcefully to move the moving baffle 203 a part, allowing the liquid to flow out at a low speed, relieving pressure and preventing water hammer caused by sudden opening or closing of the valve when the liquid flow rate is too high. It can also prevent damage to the equipment connected to the other end of the water pipe due to excessively fast input liquid flow rate, while limiting the water flow rate and water pressure through the valve, reducing losses.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A test valve that is easy to install, comprising an installation pipe (1), characterized in that: The outer wall of the installation tube (1) is provided with a groove three (23) on the inward side. The inner wall of the groove three (23) is provided with a limiting groove (24). The inner wall of the limiting groove (24) is slidably connected to a limiting ring (14). A ball (15) is fixedly connected to the middle of the inner wall of the limiting ring (14). A piston one (12) is fixedly connected to the outer wall of the ball (15). A hydraulic pipe (21) is slidably connected to the outer wall of the front end of the piston one (12). A piston two (19) is slidably connected to the left end of the hydraulic pipe (21). A compression block (17) is fixedly connected to the rear side of the piston two (19). An anti-slip pad (16) is fixedly connected to the inward side of the compression block (17). The outer wall of the installation tube (1) is provided with a groove three (23) on the outward side. The second groove (22) is slidably connected to the outer wall of the extrusion block (17) on the inner side. The left side of the two sides of the mounting tube (1) is fixedly connected to the rotating shaft (4). The outer wall of the rotating shaft (4) is fixedly connected to the rotating rod (3). The front and rear sides of the outer wall of the mounting tube (1) are fixedly connected to the fixing block (8). The middle of the fixing block (8) is provided with a slot (9). The top rear side of the fixing block (8) is fixedly connected to the groove cylinder (10). The front middle of the groove cylinder (10) is provided with the first groove (5). The inner wall of the first groove (5) is fixedly connected to the second spring (6). The other end of the second spring (6) is fixedly connected to the second limit rod (7). The left end of the mounting tube (1) is provided with a pressure control mechanism (2).

2. The easy-to-install calibration valve according to claim 1, characterized in that: The pressure control mechanism (2) includes a valve body (201), both ends of which are connected to the inward side of the mounting pipe (1). Connection ports (208) are provided at both ends of the valve body (201). The left end of the connection port (208) is fixedly connected to the right end of the mounting pipe (1). A fixing rod (202) is fixedly connected vertically to the inner wall of the connection port (208). A cylindrical rod (211) is fixedly connected to the outer wall of the fixing rod (202). A limit block (2) is fixedly connected to the right end of the cylindrical rod (211). 10) A spring (212) is fixedly connected to the outward side of the limiting block (210), and a movable baffle (203) is fixedly connected to the other end of the spring (212). A limiting rod (204) is fixedly connected to the upper and lower ends of the right side of the movable baffle (203). A cylindrical groove (207) is opened in the middle of the upper end of the valve body (201). A connecting shaft (205) is slidably connected to the inner wall of the cylindrical groove (207). A rotating baffle (209) is fixedly connected to the lower end of the connecting shaft (205).

3. The easy-to-install calibration valve according to claim 2, characterized in that: The middle part of the movable baffle (203) is slidably connected to the outer wall of the cylindrical rod (211), and the upper end of the connecting shaft (205) is fixedly connected to the rotating disk (206).

4. The easy-to-install calibration valve according to claim 2, characterized in that: The valve body (201) has two outer walls fixedly connected to mounting handles (27), and the middle outer wall of the mounting handles (27) is fixedly connected to an anti-slip sleeve (20).

5. The easy-to-install calibration valve according to claim 2, characterized in that: A connecting pipe (11) is fixedly connected to the front side of the valve body (201), a plug (26) is slidably connected to the top end of the connecting pipe (11), and a sealing ring (28) is fixedly connected to the end of the connecting pipe (11).

6. The easy-to-install calibration valve according to claim 1, characterized in that: The right end of the hydraulic pipe (21) is fixedly connected to a fixing plate one (13), and the left end of the hydraulic pipe (21) is fixedly connected to a fixing plate two (18).

7. The easy-to-install calibration valve according to claim 1, characterized in that: The inner side of the slot (9) is in contact with the outer wall of the rotating rod (3), and the outer wall of the limiting rod (7) is in contact with the outer wall of the rotating rod (3).

8. The easy-to-install calibration valve according to claim 1, characterized in that: The inner wall of the installation pipe (1) is provided with a hard water pipe (25), and the inner wall of the second trench (22) is slidably connected to the outer wall of the extrusion block (17).

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