Waterproof hammer valve

Abstract

The utility model discloses a waterproof hammer telescopic valve, include: the valve body, the at least one end inner wall of valve body is equipped with the extension to its end and opens the sliding slot, telescopic section, telescopic section one end enters the one end of valve body, and with sliding fit of sliding slot, locking piece, locking piece install in one end of valve body, and the opening of sliding slot is blocked, to limit telescopic section fall off, wherein, the inside of telescopic section forms S type channel. The utility model discloses through the sliding fit of valve body and telescopic section, and with locking piece to telescopic section is located, prevents its and valve body separation, cancelled the structure of steel wire collar, utilizes piston structure effectively to avoid the problem of collar fall off, and the inside of telescopic section forms S type channel, prevents water hammer impact to front -end equipment when medium backflow, slows down the medium flow rate and prevents water meter backflow, replaces the part function of traditional check valve.

Description

Technical Field

[0001] This utility model relates to the technical field of valves, and in particular to a waterproof hammer telescopic valve. Background Technology

[0002] Valves are control elements in fluid transport systems and are widely used in almost all industrial fields and daily life, including petroleum, chemical, power, water treatment, urban water supply, pharmaceuticals, and shipbuilding.

[0003] Among them, telescopic valves are standard valves (such as gate valves, butterfly valves, ball valves, etc.). They generally adopt a steel wire retaining ring structure. During installation and use, the locking nut exerts a large force, and the retaining ring is easy to fall off.

[0004] In addition, when the pipeline of the expansion valve is connected to the front-end equipment, the backflow of the medium will cause water hammer impact on the front-end equipment. Currently, the backflow of the medium is prevented by connecting a check valve in the pipeline to prevent the water meter from flowing back, but the structure is complicated and the cost is high. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a water hammer-proof telescopic valve. The valve body slides with the telescopic joint, and the telescopic joint is limited by a locking element to prevent it from separating from the valve body. The structure of the wire retaining ring is eliminated, and the piston structure effectively avoids the problem of retaining ring falling off. Moreover, an S-shaped channel is formed inside the telescopic joint, and a valve core is installed inside the telescopic joint to form an S-shaped channel. When the medium flows back, it prevents water hammer impact on the front-end equipment, slows down the medium flow rate to prevent backflow of the water meter, and replaces some functions of the traditional check valve. The structure is simple and the cost is low.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A water hammer-resistant telescopic valve, comprising: a valve body, wherein at least one end of the valve body has an inner wall provided with a groove extending to and opening thereto;

[0008] An expansion joint, one end of which extends into one end of the valve body and slides in conjunction with the slide groove;

[0009] A locking element is installed at one end of the valve body and blocks the opening of the slide groove to prevent the expansion joint from falling off.

[0010] In the aforementioned waterproof hammer telescopic valve, the locking member is detachably connected to one end of the valve body, and the locking member is provided with a retaining ring, which is located at the opening of the slide groove;

[0011] The length of the groove is the sliding distance of the expansion joint.

[0012] In the aforementioned waterproof hammer telescopic valve, one end of the telescopic joint is provided with a slip ring, which slides in conjunction with the slide groove and is also in a limiting fit with the retaining ring.

[0013] At least one sealing element is provided between the sliding groove and the slip ring;

[0014] At least one sealing element is provided on the locking element, one end of the valve body, and the outer wall of the expansion joint.

[0015] In the aforementioned waterproof hammer telescopic valve, an S-shaped channel is formed inside the telescopic joint;

[0016] The expansion joint is equipped with a valve core, which includes a core body and a plurality of baffles disposed therein. The plurality of baffles are distributed along the axial direction of the core body, and the axial projection surface of the plurality of baffles covers the cross-section of the core body, so as to form an S-shaped channel in the core body.

[0017] In the aforementioned waterproof hammer telescopic valve, the projected area of ​​each baffle along the axial direction of the core is not less than half of the cross-sectional area inside the core;

[0018] The baffles are arranged at equal intervals along the axial direction of the core.

[0019] The plurality of baffles each include: a plurality of first baffles and a plurality of second baffles, and the first baffles and the second baffles are distributed at intervals along the axial direction of the core.

[0020] In the aforementioned waterproof hammer telescopic valve, one end of the core is provided with at least two protruding edges along its circumference. The two protruding edges are centrally symmetrical about the axial direction of the core, and each protruding edge is inclined towards the outer side of the core.

[0021] In the aforementioned waterproof hammer telescopic valve, the inner wall of the telescopic joint has two steps, and the valve core is located between the two steps.

[0022] In the aforementioned waterproof hammer telescopic valve, a connector is sleeved on the other end of the telescopic joint, and a protruding ring is provided on the other end of the telescopic joint to prevent the connector from falling off;

[0023] The other end of the expansion joint is provided with a gasket.

[0024] In the aforementioned waterproof hammer telescopic valve, the telescopic joint includes a mounting body and a sliding body that are detachably connected to each other, the valve core is disposed in the mounting body, and the sliding body is slidably engaged with the valve body.

[0025] In the aforementioned water hammer telescopic valve, the valve body is a ball valve, the ball valve neck is provided with a locking block, the ball valve handle is provided with a groove, and the locking block and the groove are engaged for limiting.

[0026] In the aforementioned waterproof hammer telescopic valve, the ball valve handle is provided with at least one wire hole.

[0027] Because this utility model employs the aforementioned technology, it has the following positive effects compared to existing technologies:

[0028] (1) This utility model uses the sliding cooperation between the valve body and the telescopic joint, and uses a locking component to limit the telescopic joint to prevent it from separating from the valve body. This eliminates the structure of the wire retaining ring and effectively avoids the problem of the retaining ring falling off by using the piston structure.

[0029] (2) The expansion joint of this utility model has an S-shaped channel inside and a valve core inside, so as to form an S-shaped channel. When the medium flows back, it prevents water hammer impact on the front-end equipment, slows down the medium flow rate and prevents water meter backflow. It replaces some functions of the traditional check valve, has a simple structure and low cost.

[0030] (3) The ball valve of this utility model has a lead wire hole on its butterfly handle, which can be connected to other equipment by lead sealing to prevent others from operating it. In addition, the butterfly handle can also be adjusted in angle. After the locking block and the slot are locked, the butterfly handle cannot be rotated. Attached Figure Description

[0031] Figure 1 This is a structural schematic diagram of the waterproof hammer telescopic valve of this utility model.

[0032] Figure 2 This is an enlarged view of the sliding fit between the valve body and the expansion joint in the waterproof hammer telescopic valve of this utility model.

[0033] Figure 3 This is an enlarged view of the structure of the expansion joint and valve core in the waterproof hammer telescopic valve of this utility model.

[0034] Figure 4 This is a schematic diagram of the valve core structure in the waterproof hammer telescopic valve of this utility model.

[0035] Figure 5 This is a side view of the valve core structure in the waterproof hammer telescopic valve of this utility model.

[0036] Figure 6 This is a schematic diagram of the valve body in the waterproof hammer telescopic valve of this utility model.

[0037] Figure 7 This is a schematic diagram of the handle in the waterproof hammer telescopic valve of this utility model.

[0038] Figure 8 This is a top view of the handle structure in the waterproof hammer telescopic valve of this utility model.

[0039] In the attached diagram: 1. Valve body; 2. Expansion joint; 3. Locking element; 4. Slide groove; 5. Retaining ring; 6. Slip ring; 7. Seal; 8. S-shaped channel; 9. Valve core; 10. Raised edge; 11. Core body; 12. Baffle; 13. First baffle; 14. Second baffle; 15. Step; 16. Connecting element; 17. Raised ring; 18. Gasket; 19. Mounting body; 20. Sliding body; 21. Locking block; 22. Handle; 23. Slot; 24. Wire hole; 25. Valve body; 26. Valve cover; 27. Ball; 28. Valve stem. Detailed Implementation

[0040] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0041] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front", "back", "horizontal", and "vertical" are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0042] It should be noted that the terms "horizontal" and "vertical" in this utility model are used to describe approximate positional relationships, and not strictly "horizontal plane" or "vertical plane".

[0043] It should be noted that, unless otherwise specified, this utility model can be used at the angle shown in the accompanying drawings or at other angles.

[0044] Please see Figures 1 to 8 As shown, a preferred embodiment of a waterproof hammer telescopic valve is provided, including: a valve body 1, a telescopic joint 2 and a locking member 3. At least one end of the inner wall of the valve body 1 is provided with a groove 4 extending to its end and opening. One end of the telescopic joint 2 extends into one end of the valve body 1 and slides in cooperation with the groove 4. The locking member 3 is installed at one end of the valve body 1 and blocks the opening of the groove 4 to restrict the telescopic joint 2 from falling off.

[0045] Furthermore, as a preferred embodiment, the locking member 3 is detachably connected to one end of the valve body 1, and the locking member 3 is provided with a retaining ring 5, which is located at the opening of the slide groove 4.

[0046] Preferably, the locking element 3 is threadedly connected to the valve body 1.

[0047] Furthermore, in a preferred embodiment, the length of the groove 4 is the sliding distance of the telescopic joint 2.

[0048] Furthermore, as a preferred embodiment, a slip ring 6 is provided on the outer wall of one end of the telescopic joint 2. The slip ring 6 is slidably engaged with the sliding groove 4, and the slip ring 6 is limitedly engaged with the retaining ring 5.

[0049] Furthermore, as a preferred embodiment, at least one seal 7 is provided between the groove 4 and the slip ring 6.

[0050] Furthermore, as a preferred embodiment, at least one sealing element 7 is provided on the locking element 3, one end of the valve body 1, and the outer wall of the expansion joint 2.

[0051] This utility model achieves a sliding fit between the valve body 1 and the telescopic joint 2, and uses a locking element 3 to limit the telescopic joint 2 to prevent it from separating from the valve body 1. This eliminates the need for a wire retaining ring and effectively avoids the problem of the retaining ring falling off by using a piston structure.

[0052] The above are merely preferred embodiments of the present invention and are not intended to limit the implementation methods and protection scope of the present invention.

[0053] Based on the above, this utility model also has the following embodiments:

[0054] In a further embodiment of this utility model, an S-shaped channel 8 is formed inside the telescopic joint 2.

[0055] In a further embodiment of the present invention, a valve core 9 is installed inside the telescopic joint 2. The valve core 9 includes a core body 11 and a plurality of baffles 12 disposed therein. The plurality of baffles 12 are distributed along the axial direction of the core body 11, and the projection surface of the plurality of baffles 12 along the axial direction of the core body 11 covers the cross-section inside the core body 11, so that an S-shaped channel is formed inside the core body 11.

[0056] In a further embodiment of the present invention, the axial projection area of ​​each baffle 12 along the core 11 is not less than half of the cross-sectional area inside the core 11.

[0057] In a further embodiment of this utility model, a plurality of baffles 12 are arranged at equal intervals along the axial direction of the core 11.

[0058] In a further embodiment of the present invention, the plurality of baffles 12 respectively include: a plurality of first baffles 13 and a plurality of second baffles 14, and the first baffles 13 and the second baffles 14 are distributed at intervals along the axial direction of the core 11.

[0059] The first baffle 13 is a semi-circular plate structure. The cross-sectional area of ​​the first baffle 13 is equal to half of the cross-sectional area inside the core 11. The sidewalls of multiple first baffles 13 are on the same plane, and the central axis of the core 11 is located on this plane.

[0060] The cross-sectional area of ​​the second baffle 14 is larger than that of the first baffle 13.

[0061] Furthermore, the side of the core 11 away from the second baffle 14 is partially hollowed out, which facilitates the processing of the baffle 12, reduces weight and cost, and does not affect the water flow inside the expansion joint 2.

[0062] In a further embodiment of the present invention, the inner wall of the telescopic joint 2 has two steps 15, and the valve core 9 is located between the two steps 15.

[0063] In a further embodiment of this utility model, one end of the core 11 is provided with at least two protruding edges 10 along its circumference. The two protruding edges 10 are symmetrical about the axial center of the core 11, and each protruding edge 10 is inclined towards the outer side of the core 11. The protruding edges 10 can support the installation of the valve core 9, making the installation more stable.

[0064] The core 11 and the baffle 12 are an integral structure.

[0065] Valve core 9 is made of PP material.

[0066] The expansion joint 2 of this utility model has an S-shaped channel 8 inside, and a valve core 9 is provided inside the expansion joint 2 to form an S-shaped channel 8. When the medium flows back, it prevents water hammer impact on the front-end equipment, slows down the medium flow rate and prevents water meter backflow. It replaces some functions of the traditional check valve, has a simple structure and low cost.

[0067] In a further embodiment of the present invention, a connector 16 is sleeved on the other end of the telescopic joint 2, and a protruding ring 17 is provided on the other end of the telescopic joint 2 to prevent the connector 16 from falling off.

[0068] In a further embodiment of this utility model, a gasket 18 is provided at the other end of the telescopic joint 2.

[0069] Furthermore, the connector 16 is a union nut, which is matched with the protruding ring 17 for limiting and adopts a rigid connection. Compared with the traditional wire clip limiting, it has the function of preventing the clip from falling off.

[0070] In a further embodiment of the present invention, the expansion joint 2 includes a mounting body 19 and a sliding body 20 that are detachably connected to each other, the valve core 9 is disposed in the mounting body 19, and the sliding body 20 is slidably engaged with the valve body 1.

[0071] Furthermore, the mounting body 19 is threadedly connected to the sliding body 20.

[0072] The sliding body has a slip ring at its end, and the mounting body 19 has a protruding ring 17 at its end.

[0073] The mounting body 19 has two steps 15 inside.

[0074] With the separate structure of the mounting body 19 and the sliding body 20, the locking element 3 can be fitted onto the sliding body 20, and the connecting body 16 can be fitted onto the mounting body 19, which facilitates disassembly and assembly.

[0075] In a further embodiment of this utility model, the valve body 1 is a ball valve, the neck of the ball valve is provided with a locking block 21, and the handle 22 of the ball valve is provided with a groove 23, and the locking block 21 and the groove 23 are engaged in a limiting cooperation.

[0076] In a further embodiment of this utility model, the handle 22 of the ball valve is provided with at least one lead wire hole 24.

[0077] In a further embodiment of this utility model, the valve body 1 includes a valve body 25 and a valve cover 26 connected to each other. A ball 27 is movably disposed inside the valve body 25 and the valve cover 26. One end of the telescopic joint 2 is slidably connected to the valve cover 26. A valve stem 28 connected to the ball 27 is disposed in the neck of the valve body 25. A handle 22 is mounted on the valve stem 28. A locking block 21 is disposed in the neck of the valve body 25. A slot 23 is disposed on the handle 22. The locking block 21 and the slot 23 are mutually limiting and cooperating. At least one wire hole 24 is disposed on the handle 22.

[0078] The valve stem 28 is fixed to the handle 22 by screws.

[0079] The ball valve of this invention has a lead wire hole 24 on its butterfly handle, which can be connected to other equipment by lead sealing to prevent unauthorized operation. In addition, the butterfly handle can also be angled. After the locking block 21 and the slot 23 are locked, the butterfly handle cannot be rotated.

[0080] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A water hammer-resistant telescopic valve, characterized in that, include: A valve body, wherein at least one end of the inner wall of the valve body is provided with a groove extending to and opening thereto; An expansion joint, one end of which extends into one end of the valve body and slides in conjunction with the slide groove; A locking element is installed at one end of the valve body and blocks the opening of the slide groove to prevent the expansion joint from falling off; The expansion joint has an S-shaped channel inside.

2. The waterproof hammer telescopic valve according to claim 1, characterized in that, The locking element is detachably connected to one end of the valve body, and the locking element is provided with a retaining ring, which is located at the opening of the slide groove; The length of the groove is the sliding distance of the expansion joint.

3. The waterproof hammer telescopic valve according to claim 2, characterized in that, The outer wall of one end of the expansion joint is provided with a slip ring, which is slidably engaged with the slide groove and limited by the retaining ring; At least one sealing element is provided between the sliding groove and the slip ring; At least one sealing element is provided on the locking element, one end of the valve body, and the outer wall of the expansion joint.

4. The waterproof hammer telescopic valve according to claim 1, characterized in that, The expansion joint is equipped with a valve core, which includes a core body and a plurality of baffles disposed therein. The plurality of baffles are distributed along the axial direction of the core body, and the axial projection surface of the plurality of baffles covers the cross-section of the core body, so as to form an S-shaped channel in the core body.

5. The waterproof hammer telescopic valve according to claim 4, characterized in that, The projected area of ​​each baffle along the axial direction of the core is not less than half of the cross-sectional area inside the core; The baffles are arranged at equal intervals along the axial direction of the core. The plurality of baffles each include: a plurality of first baffles and a plurality of second baffles, and the first baffles and the second baffles are distributed at intervals along the axial direction of the core.

6. The waterproof hammer telescopic valve according to claim 4, characterized in that, The inner wall of the expansion joint has two steps, and the valve core is located between the two steps; One end of the core is provided with at least two protruding edges along its circumference. The two protruding edges are symmetrical about the axial direction of the core, and each of the protruding edges is inclined towards the outside of the core.

7. The waterproof hammer telescopic valve according to claim 1, characterized in that, A connector is fitted onto the other end of the expansion joint, and a protruding ring is provided on the other end of the expansion joint to prevent the connector from falling off. The other end of the expansion joint is provided with a gasket.

8. The waterproof hammer telescopic valve according to claim 1, characterized in that, The expansion joint includes a mounting body and a sliding body that are detachably connected to each other. The valve core is disposed in the mounting body, and the sliding body is slidably engaged with the valve body.

9. The waterproof hammer telescopic valve according to claim 1, characterized in that, The valve body is a ball valve, the ball valve neck is provided with a locking block, the ball valve handle is provided with a groove, and the locking block and the groove are engaged for limiting.

10. The waterproof hammer telescopic valve according to claim 9, characterized in that, The ball valve handle is provided with at least one wire hole.

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