Water conservancy safety protection valve

Abstract

The utility model discloses a water conservancy safety protection valve which comprises a valve body, connecting ports are installed at the two ends of the valve body, a threaded port is formed in the inner side of the connecting port at the input end, a connecting pipe is movably installed on the inner side of the threaded port through threads, and a penetrating port is formed in the input end of the connecting pipe. The connecting pipe and the non-return plate are installed, the threaded opening is formed in the inner side of the connecting opening of the input end, and the inner side of the threaded opening is movably connected with the connecting pipe through threads, so that a user can assemble the connecting pipe conveniently, the connecting pipe fixes the supporting shaft on the inner side, stability of the supporting shaft is guaranteed, and the supporting shaft limits the connecting piece on the outer side; the angle of the connecting piece is adjusted through the supporting shaft, the supporting shaft fixes the non-return plate at the bottom end, the stability of the non-return plate is guaranteed, the non-return plate abuts against the output end of the penetrating opening, water enters the connecting pipe from the input end of the penetrating opening, the non-return plate is tilted, and when drainage is stopped, the non-return plate abuts against one side of the penetrating opening, and the situation that water flows back is prevented.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering technology, specifically to a water conservancy safety protection valve. Background Technology

[0002] Hydraulic control valves are among the most common valves in people's daily lives. In fluid pipeline systems, valves are control elements, and their main functions are to isolate equipment and pipeline systems, regulate flow, prevent backflow, and regulate and release pressure.

[0003] Patent document CN222416194U discloses a water conservancy safety protection valve, which discloses "a water conservancy safety protection valve, relating to the field of water conservancy engineering technology. This utility model includes a valve body, with an inlet pipe and an outlet pipe fixedly installed on both side walls of the valve body, a valve cavity built into the valve body, the inlet pipe and the outlet pipe communicating with the valve cavity, a ball valve body rotatably installed inside the valve cavity, a valve stem rotatably installed on the top of the valve body, a handwheel fixedly installed on the top of the valve stem, the valve stem longitudinally penetrating the valve body and fixedly connected to the ball valve body, and a pressure relief mechanism provided at the bottom of the valve body";

[0004] The existing hydraulic safety valves lack internal check valves, which can easily cause water backflow and affect the normal transmission of water. Utility Model Content

[0005] The purpose of this utility model is to provide a hydraulic safety protection valve to solve the technical problem mentioned in the background art, which is that the hydraulic safety protection valve lacks a check valve, which easily causes water backflow and affects the normal transmission of water flow.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic safety protection valve, comprising: a valve body, wherein connection ports are installed at both ends of the valve body, a threaded opening is provided on the inner side of the connection port at the input end, a connecting pipe is movably installed on the inner side of the threaded opening through the thread, a through opening is provided at the input end of the connecting pipe, a support shaft is installed on the inner side of the connecting pipe, a connecting piece is movably installed on the outer side of the support shaft, and a check plate is installed at the bottom end of the connecting piece, the check plate abutting against one end of the through opening;

[0007] A baffle is installed on the inner side of the valve body. A water outlet is opened on the inner side of the baffle. An input cavity is opened at the bottom of the baffle. The top of the input cavity is connected to the water outlet. An output cavity is opened at the top of the baffle. The bottom of the output cavity is connected to the water outlet.

[0008] Preferably, a support pipe is installed on the top of the valve body, a second flange is installed at the top of the support pipe, a sealing ring is movably installed on the inner side of the support pipe, a sealing ring is installed above the sealing ring, a first flange is installed above the sealing ring, and fastening bolts are installed through the inner sides of the first flange and the second flange, with the fastening bolts penetrating through the inner sides of the sealing ring and the sealing ring.

[0009] Preferably, a limit frame is installed on the top of the second flange, and a movable cavity is formed on the inner side of the limit frame.

[0010] Preferably, a threaded ring is installed on the top of the limiting frame, and a rotating rod is movably installed on the inner side of the threaded ring by means of threads. The rotating rod passes through the first flange, the movable cavity and the inner side of the limiting frame.

[0011] Preferably, the outer side of the rotating rod is provided with an external thread, and the rotating rod is movably connected to the threaded ring through the external thread.

[0012] Preferably, a connecting rod is installed at the top of the rotating rod, a sealing plug is installed at the bottom of the rotating rod, a limit groove is formed at the bottom of the sealing plug, a limit block is movably installed inside the limit groove, a sealing gasket is installed at the bottom of the limit block, the sealing gasket rests against the bottom of the sealing plug, a connecting screw is installed through the inner side of the sealing gasket, and the connecting screw is installed inside the sealing plug by means of threads.

[0013] Preferably, a handle is movably mounted on the outer side of the connecting rod, and a fastening nut is movably mounted on the outer side of the connecting rod, with the fastening nut resting against the top of the handle.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model is equipped with a connecting pipe and a check plate. The inner side of the connection port at the input end is opened with a threaded opening. The inner side of the threaded opening is movably connected to the connecting pipe through the thread, which facilitates the user to assemble the connecting pipe. The connecting pipe is fixed to the inner support shaft to ensure the stability of the support shaft. The support shaft limits the outer connecting piece. The connecting piece can adjust the angle with the support shaft. The support shaft is fixed to the bottom check plate to ensure the stability of the check plate. The check plate is pressed against the output end of the through-hole. Water enters the interior of the connecting pipe from the input end of the through-hole, causing the check plate to tilt up. When drainage stops, the check plate is pressed against one side of the through-hole to prevent water backflow.

[0016] 2. This utility model uses a limiting block and connecting screws to fix the bottom sealing plug with a rotating rod. The bottom end of the sealing plug is limited by the limiting groove to the limiting block, and the limiting block fixes the bottom sealing gasket to ensure the stability of the sealing gasket. The connecting screws pass through the inner sides of the sealing plug and the sealing gasket, making it convenient for users to disassemble and install the sealing gasket. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the connecting pipe structure of this utility model;

[0020] Figure 4 This is a front structural diagram of the present invention;

[0021] Figure 5 This is a schematic diagram of the sealing plug structure of this utility model.

[0022] In the diagram: 1. Valve body; 2. Connection port; 3. Water outlet; 4. Support pipe; 5. Sealing ring; 6. Sealing ring; 7. Fastening bolt; 8. First flange; 9. Second flange; 10. Movable cavity; 11. Limiting bracket; 12. Threaded ring; 13. Rotating rod; 14. External thread; 15. Handle; 16. Connecting rod; 17. Fastening nut; 18. Sealing plug; 19. Sealing gasket; 20. Threaded port; 21. Connecting pipe; 22. Through port; 23. Support shaft; 24. Connecting piece; 25. Check plate; 26. Connecting screw; 27. Limiting block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A hydraulic safety protection valve includes: a valve body 1, with connection ports 2 installed at both ends of the valve body 1; a threaded port 20 is provided on the inner side of the connection port 2 at the input end; a connecting pipe 21 is movably installed on the inner side of the threaded port 20 via a thread; a through port 22 is provided at the input end of the connecting pipe 21; a support shaft 23 is installed on the inner side of the connecting pipe 21; a connector 24 is movably installed on the outer side of the support shaft 23; a check plate 25 is installed at the bottom end of the connector 24; and the check plate 25 abuts against one end of the through port 22.

[0027] The valve body 1 is fixed to the two connecting ports 2 on both sides to ensure the stability of the connecting ports 2. The connecting ports 2 are connected to the water pipes by connecting bolts to facilitate water flow. The inner side of the connecting port 2 at the input end is opened with a threaded port 20. The inner side of the threaded port 20 is movably connected to the connecting pipe 21 by threads to facilitate the user's assembly of the connecting pipe 21 and ensure the stability of the connecting pipe 21. The inner side of the connecting pipe 21 is opened with a through port 22 to facilitate water flow. The connecting pipe 21 is fixed to the inner support shaft 23 to ensure the stability of the support shaft 23. The support shaft 23 limits the outer connecting piece 24. The connecting piece 24 adjusts the angle with the support shaft 23. The support shaft 23 is fixed to the bottom check plate 25 to ensure the stability of the check plate 25. The check plate 25 abuts against the output end of the through port 22. Water enters the interior of the connecting pipe 21 from the input end of the through port 22, causing the check plate 25 to tilt up. When drainage stops, the check plate 25 abuts against one side of the through port 22 to prevent water backflow.

[0028] A baffle is installed on the inner side of the valve body 1. A water outlet 3 is opened on the inner side of the baffle. An input cavity is opened at the bottom of the baffle. The top of the input cavity is connected to the water outlet 3. An output cavity is opened at the top of the baffle. The bottom of the output cavity is connected to the water outlet 3.

[0029] The valve body 1 is fixed to the inner partition to ensure the stability of the partition. A water outlet 3 is opened on the inner side of the partition to facilitate water flow. Water is input into the input chamber and flows upward through the interior of the water outlet 3. The water outlet 3 then transmits the water to the interior of the output chamber.

[0030] A support pipe 4 is installed on the top of the valve body 1. A second flange 9 is installed at the top of the support pipe 4. A sealing ring 5 is movably installed on the inner side of the support pipe 4. A sealing ring 6 is installed above the sealing ring 5. A first flange 8 is installed above the sealing ring 6. Fastening bolts 7 are installed through the inner sides of the first flange 8 and the second flange 9. The fastening bolts 7 penetrate the inner sides of the sealing ring 5 and the sealing ring.

[0031] The valve body 1 is fixed to the top support pipe 4 to ensure the stability of the support pipe 4. The support pipe 4 is fixed to the top second flange 9. The second flange 9 supports the top sealing ring 5. The sealing ring 5 supports the upper sealing ring 6. The sealing ring 6 supports the upper first flange 8. The fastening bolt 7 passes through the inside of the first flange 8 and the second flange 9. The first flange 8 and the second flange 9 abut against the top of the sealing ring 5 and the sealing ring to ensure sealing.

[0032] A limit frame 11 is installed on the top of the second flange 9. A movable cavity 10 is formed on the inner side of the limit frame 11. A threaded ring 12 is installed on the top of the limit frame 11. A rotating rod 13 is movably installed on the inner side of the threaded ring 12 via a thread. The rotating rod 13 passes through the first flange 8, the movable cavity 10, and the inner side of the limit frame 11. An external thread 14 is provided on the outer side of the rotating rod 13. The rotating rod 13 is movably connected to the threaded ring 12 via the external thread 14. A connecting rod 16 is installed on the top of the rotating rod 13. A sealing plug 18 is installed at the bottom end of the sealing plug 18. A limiting groove is opened at the bottom end of the sealing plug 18. A limiting block 27 is movably installed inside the limiting groove. A sealing gasket 19 is installed at the bottom end of the limiting block 27. The sealing gasket 19 rests against the bottom of the sealing plug 18. A connecting screw 26 is installed through the inner side of the sealing gasket 19. The connecting screw 26 is installed on the inner side of the sealing plug 18 by thread. A handle 15 is movably installed on the outer side of the connecting rod 16. A fastening nut 17 is movably installed on the outer side of the connecting rod 16. The fastening nut 17 rests against the top of the handle 15.

[0033] The second flange 9 is fixed to the top limiting bracket 11 to ensure the stability of the limiting bracket 11. The limiting bracket 11 limits the installation of the top threaded ring 12 to ensure the stability of the threaded ring 12. The inner side of the threaded ring 12 is movably connected to the rotating rod 13 through the external thread 14. The rotating rod 13 is fixed to the top connecting rod 16 to ensure the stability of the connecting rod 16. The connecting rod 16 limits the outer handle 15. The fastening nut 17 is installed on the outer side of the connecting rod 16 through threads. When the user grips the handle 15, it drives the inner connecting... The rod 16 and the rotating rod 13 rotate, and the rotating rod 13 drives the outer external thread 14 to rotate. The external thread 14 rotates inside the threaded ring 12, so that the rotating rod 13 can adjust its height up and down. The rotating rod 13 fixes the bottom sealing plug 18. The bottom end of the sealing plug 18 limits the limit block 27 through the limit groove. The limit block 27 fixes the bottom sealing gasket 19 to ensure the stability of the sealing gasket 19. The connecting screw 26 passes through the inner side of the sealing plug 18 and the sealing gasket 19, making it convenient for the user to disassemble and install the sealing gasket 19.

[0034] The rotating rod 13 moves downward, causing the bottom sealing plug 18 to move downward. The sealing plug 18 causes the sealing gasket 19 to move downward. The sealing gasket 19 abuts against the inside of the water outlet 3 to control the closing of the protective valve.

[0035] Working principle: The limiting bracket 11 limits the installation of the top threaded ring 12, ensuring the stability of the threaded ring 12. The inner side of the threaded ring 12 is movably connected to the rotating rod 13 through the external thread 14. The rotating rod 13 fixes the top connecting rod 16, ensuring the stability of the connecting rod 16. The connecting rod 16 limits the outer handle 15. The fastening nut 17 is threadedly installed on the outer side of the connecting rod 16. When the user grips the handle 15, it drives the inner connecting rod 16 and the rotating rod 13 to rotate. The rotating rod 13 drives the outer external thread 14 to rotate. The thread 14 rotates inside the threaded ring 12, causing the rotating rod 13 to adjust its height up and down. The rotating rod 13 fixes the bottom sealing plug 18. The bottom end of the sealing plug 18 is limited by the limiting groove to the limiting block 27. The limiting block 27 fixes the bottom sealing gasket 19, ensuring the stability of the sealing gasket 19. The connecting screw 26 passes through the inner sides of the sealing plug 18 and the sealing gasket 19, facilitating the user to disassemble and install the sealing gasket 19. The downward movement of the rotating rod 13 causes the bottom sealing plug 18 to move downward, and the sealing plug 18 causes the sealing gasket 19 to move downward. The valve body 1 is movable, with the sealing gasket 19 resting against the inside of the water outlet 3 to control the closure of the protective valve. The valve body 1 is fixed to the connection ports 2 on both sides to ensure their stability. The connection ports 2 are connected to the water pipe via connecting bolts for easy water flow. A threaded opening 20 is provided on the inside of the input end connection port 2, and the inside of the threaded opening 20 is movably connected to the connecting pipe 21 via threads, facilitating user assembly of the connecting pipe 21 and ensuring its stability. A through opening 22 is provided on the inside of the connecting pipe 21 to facilitate water flow. The connecting pipe 21 is fixed to the inner support shaft 23 to ensure the stability of the support shaft 23. The support shaft 23 limits the outer connector 24. The connector 24 adjusts its angle with the support shaft 23. The support shaft 23 is fixed to the bottom check plate 25 to ensure the stability of the check plate 25. The check plate 25 is pressed against the output end of the through port 22. Water enters the interior of the connecting pipe 21 from the input end of the through port 22, causing the check plate 25 to tilt up. When drainage stops, the check plate 25 is pressed against one side of the through port 22 to prevent water from flowing back.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A water safety protection valve, characterized by, It include: valve body (1), both ends of the valve body (1) is equipped with the connecting mouth (2), the inside of the connecting mouth (2) of input end is equipped with the threaded mouth (20), the inside of the threaded mouth (20) is movably equipped with the connecting pipe (21), the input end of the connecting pipe (21) is equipped with the through hole (22), the inside of the connecting pipe (21) is equipped with the support shaft (23), the outside of the support shaft (23) is movably equipped with the connecting piece (24), the bottom end of the connecting piece (24) is equipped with the check plate (25), the check plate (25) is against one end of the through hole (22); The inside of the valve body (1) is equipped with the partition, the inside of the partition is equipped with the water flow port (3), the bottom of the partition is equipped with the input cavity, the top of the input cavity is communicated with the water flow port (3), the top of the partition is equipped with the output cavity, the bottom of the output cavity is communicated with the water flow port (3).

2. A water safety barrier valve according to claim 1, characterised in that: The top of the valve body (1) is equipped with the support pipe (4), the top end of the support pipe (4) is equipped with the second flange plate (9), the inside of the support pipe (4) is movably equipped with the sealing ring (5), the upper of the sealing ring (5) is equipped with the sealing ring (6), the upper of the sealing ring (6) is equipped with the first flange plate (8), the inside of the first flange plate (8) and the second flange plate (9) is penetratedly equipped with the fastening bolt (7), the inside of the fastening bolt (7) is penetrated through the sealing ring (5) and the sealing ring (6).

3. A water safety barrier valve according to claim 2, characterised in that: The top of the second flange plate (9) is equipped with the limiting frame (11), the inside of the limiting frame (11) is equipped with the movable cavity (10).

4. A water safety barrier valve according to claim 3, wherein: The top of the limiting frame (11) is equipped with the threaded ring (12), the inside of the threaded ring (12) is movably equipped with the rotating rod (13) through the thread, the inside of the rotating rod (13) is penetrated through the first flange plate (8), the movable cavity (10) and the limiting frame (11).

5. A water safety barrier valve according to claim 4, wherein: The outside of the rotating rod (13) is provided with the external thread (14), the rotating rod (13) is movably connected with the threaded ring (12) through the external thread (14).

6. A water safety shield valve according to claim 4, wherein: The top of the rotating rod (13) is equipped with the connecting rod (16), the bottom end of the rotating rod (13) is equipped with the sealing plug (18), the bottom end of the sealing plug (18) is equipped with the limiting slot, the inside of the limiting slot is movably equipped with the limiting block (27), the bottom end of the limiting block (27) is equipped with the sealing gasket (19), the sealing gasket (19) is against the lower of the sealing plug (18), the inside of the sealing gasket (19) is penetratedly equipped with the connecting screw (26), the connecting screw (26) is movably equipped in the inside of the sealing plug (18) through the thread.

7. A water safety barrier valve according to claim 6, wherein: The outside of the connecting rod (16) is movably equipped with the handle (15), the outside of the connecting rod (16) is movably equipped with the fastening nut (17), the fastening nut (17) is against the upper of the handle (15).

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