Valve with adjustable length

Abstract

The utility model discloses a length-adjustable valve, which relates to the technical field of valves and comprises a valve seat, a diversion trench is arranged in the valve seat, a valve plate is rotatably connected in the diversion trench, and an adjuster is mounted at the top of the valve seat. The valve with the adjustable length has the advantages that the valve rod and the handle can be protected through the protective cover installed on one side of the adjuster, the valve rod and the handle are not prone to being touched by mistake or damaged by external force, meanwhile, the first square valve rod and the second square valve rod are connected in a sliding mode and can slide, and therefore the valve rod and the handle are not prone to being touched by mistake or damaged by external force. The whole length of the valve rod and the position of the handle can be adjusted conveniently, the handle extends out of or is hidden in the protective cover, the structure is simple, a movable positioning rod in the second square valve rod is connected with a positioning hole in the first square valve rod in an inserted mode, and deformation of an arc-shaped structure at one end of the positioning rod and a spring at the other end is matched. And the positions of the second square valve rod and the handle can be conveniently fixed, and the second valve rod can be conveniently mounted and dismounted.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a valve with adjustable length. Background Art

[0002] A valve is a pipeline accessory. It is a device used to change the cross-section of the passage and the flow direction of the medium and to control the flow of the transported medium. It is widely used in various fluid transport and control systems. In actual applications, the valve is exposed to the outside world and is prone to failure to close or accidental opening, resulting in losses.

[0003] Application No. 202020521858.3 discloses an adjustable valve structure. By rotating two rotating seats, the fixed rod drives the corresponding gear to rotate, the gear drives the corresponding rack to move, the clamping strip squeezes the corresponding compression spring, and the clamping strip slides out of the corresponding clamping slot, the fixed restriction of the valve stem can be cancelled, and the valve stem can be removed from the fixed seat. By rotating the adjusting seat, the connecting rod drives the two worms to rotate, the worm gear drives the corresponding rotating rod to rotate, the second bevel gear drives the corresponding first bevel gear to rotate, and the screw rod drives the corresponding limit block to move, the fixed restriction of the adjusting rod can be cancelled, the handle can be moved, and the handle drives the adjusting rod to move in the fixed slot, so as to adjust the use of the valve stem.

[0004] The valve stem and handle of the above application are exposed to the outside, lacking a protective structure, and are still easily touched by mistake or damaged by external forces. In addition, the installation and removal of the valve stem and the adjustment of its length require the coordination of gears, racks, bevel gear sets, etc., which is relatively complicated. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a valve with adjustable length, which solves the problems raised in the above background technology.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a length-adjustable valve, comprising a valve seat, a guide groove is provided inside the valve seat, a valve plate is rotatably connected inside the guide groove, a regulator is installed on the top of the valve seat, a worm wheel and a worm are rotatably connected inside the regulator, the worm wheel and the worm are meshed, a first square valve stem is rotatably connected on one side of the regulator, the worm wheel and the worm are respectively connected to the valve plate and the first square valve stem, a limiting groove is provided inside the first square valve stem, a second square valve stem is slidably connected inside the limiting groove, a handle is connected to one end of the second square valve stem, a protective cover is installed on the outer wall of the regulator and located on the outside of the first square valve stem, a plurality of positioning holes are provided inside the first square valve stem and at the bottom of the limiting groove, a slide groove is provided inside the second square valve stem, a positioning rod is slidably connected inside the slide groove, one end of the positioning rod is arc-shaped, one end of the positioning rod passes through one of the positioning holes, a telescopic spring is installed inside the slide groove, and one end of the telescopic spring is connected to the other end of the positioning rod.

[0007] Preferably, movable grooves are provided inside the valve seat and on both sides corresponding to the guide groove, and a connecting pipe is slidably connected inside the movable groove.

[0008] Preferably, a flow sensor is installed inside the guide groove and on one side of the valve plate.

[0009] Preferably, a controller is installed on one side of the regulator and located on the top of the protective cover, a warning light is installed on one side of the controller, and the controller is electrically connected to the flow sensor and the warning light respectively.

[0010] Preferably, the protective cover has a concave shape.

[0011] Preferably, a sealing ring is installed inside the movable groove.

[0012] The utility model provides a length-adjustable valve, which has the following beneficial effects:

[0013] 1. The length-adjustable valve can protect the valve stem and the handle through the protective cover installed on one side of the regulator, so that it is not easy to be accidentally touched or damaged by external forces. At the same time, the first square valve stem and the second square valve stem are slidably connected and can slide, which is convenient for adjusting the overall length of the valve stem and the position of the handle, so that the handle can be extended from or hidden in the protective cover. The structure is simple, and the movable positioning rod in the second square valve stem is plugged into the positioning hole in the first square valve stem. The arc structure at one end of the positioning rod and the deformation of the spring at the other end are combined to fix the position of the second square valve stem and the handle, and facilitate the installation and disassembly of the second valve stem.

[0014] 2. The length-adjustable valve can extend or adjust the overall length of the valve as needed through the connecting pipes that slide on both ends of the valve seat, thereby improving the flexibility of the connection between the valve and the pipeline. The flow sensor in the guide groove cooperates with the warning light on the controller. When the valve is not closed and the fluid is in a flowing state, the warning light is triggered to remain on, thereby reminding the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 For this utility model Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 It is a side view of the utility model.

[0018] In the figure: 1. valve seat; 2. guide groove; 3. valve plate; 4. regulator; 5. worm gear; 6. worm; 7. first square valve stem; 8. limit groove; 9. second square valve stem; 10. handle; 11. sealing ring; 12. protective cover; 13. positioning hole; 14. slide groove; 15. positioning rod; 16. telescopic spring; 17. movable groove; 18. connecting pipe; 19. flow sensor; 20. controller; 21. warning light. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] See also Figures 1 to 3The utility model provides a technical solution: a length-adjustable valve comprises a valve seat 1, a guide groove 2 is provided inside the valve seat 1, a valve plate 3 is rotatably connected inside the guide groove 2, a regulator 4 is installed on the top of the valve seat 1, a worm wheel 5 and a worm 6 are rotatably connected inside the regulator 4, the worm wheel 5 and the worm 6 are meshed, a first square valve stem 7 is rotatably connected on one side of the regulator 4, the worm wheel 5 and the worm 6 are respectively connected to the valve plate 3 and the first square valve stem 7, a limiting groove 8 is provided inside the first square valve stem 7, a second square valve stem 9 is slidably connected inside the limiting groove 8, a handle 10 is connected to one end of the second square valve stem 9, the first square valve stem 7 is driven and kept consistent with the valve plate 3 by the meshing of the worm wheel 5 and the worm 6, and the handle 10 drives the valve plate 3 to rotate and rotate. When the second square valve stem 9 and the first square valve stem 7 rotate, the valve plate 3 is triggered to rotate, which can control the opening and closing of the valve seat 1. A protective cover 12 is installed on the outer wall of the regulator 4 and on the outer side of the first square valve stem 7, which is convenient for protecting the second square valve stem 9 and the handle 10, so that they are not easily accidentally touched and damaged by external forces. At the same time, through the sliding structure of the first square valve stem 7 and the second square valve stem 9, it is convenient to adjust the overall length of the first square valve stem 7 and the second square valve stem 9, and move the handle 10 out of the protective cover 12 to ensure the normal use of the valve seat 1. A plurality of positioning holes 13 are provided inside the first square valve stem 7 and at the bottom of the limiting groove 8, and a slide groove 14 is provided inside the second square valve stem 9. The slide groove 14 is internally slidably connected with The positioning rod 15 has an arc shape at one end, and one end of the positioning rod 15 passes through one of the positioning holes 13. A telescopic spring 16 is installed inside the slide groove 14, and one end of the telescopic spring 16 is connected to the other end of the positioning rod 15, so that when one end of the positioning rod 15 is squeezed by the limiting groove 8 in the first square valve stem 7 as the second square valve stem 9 moves, it can automatically retract into the slide groove 14 in the second square valve stem 9, and under the action of the telescopic spring 16, it is inserted into the positioning hole 13 corresponding to the required position, and is limited to fix the position of the second square valve stem 9 and the handle 10. The structure of the protective cover 12 is concave, so that the hand can contact the handle 10 in the protective cover 12 through the gap of the protective cover 12, and the auxiliary handle 10 Sliding, movable grooves 17 are provided inside the valve seat 1 and on both sides corresponding to the guide groove 2, and a connecting pipe 18 is slidably connected inside the movable groove 17. The sliding structure allows the two connecting pipes 18 to expand outward, extending or adjusting the overall length of the valve seat 1, which is beneficial to improving the flexibility of the connection between the valve seat 1 and the pipeline. A sealing ring 11 is installed inside the movable groove 17, which is beneficial to increase the sealing between the movable groove 17 and the connecting pipe 18 to avoid leakage. A flow sensor 19 is installed inside the guide groove 2 and on one side of the valve plate 3, and a controller 20 is installed on one side of the regulator 4 and on the top of the protective cover 12. A warning light 21 is installed on one side of the controller 20, and the controller 20 is electrically connected to the flow sensor 19 and the warning light 21 respectively.The flow sensor 19 can determine the opening and closing status of the valve seat 1 according to the flow of the fluid in the guide groove 2, transmit the signal to the controller 20, and trigger the warning light 21 to light up to remind the user, which is helpful to prevent the user from forgetting to close the valve seat 1.

[0021] In summary, when the length-adjustable valve is used, since the first square valve stem 7 on one side of the regulator 4 is slidably connected with the second square valve stem 9, and a protective cover 12 is installed on the outer wall of the regulator 4 and located on the outer side of the first square valve stem 7, the handle 10 at one end of the second square valve stem 9 is pulled through the gap at the bottom of the protective cover 12 on one side of the regulator 4, and the handle 10 and the second square valve stem 9 can be moved outward from the protective cover 12. At the same time, the arc structure at one end of the positioning rod 15 in the slide groove 14 in the second square valve stem 9 is squeezed and automatically retracted into the slide groove 14, and the telescopic spring 16 is squeezed until it is aligned with the positioning hole 13 on the first square valve stem 7 at the desired position. The telescopic spring 16 pushes the positioning rod 15 to return to its original position, so that one end of the positioning rod 15 is inserted into the positioning hole 13, The first square valve stem 7 and the second square valve stem 9 are fixed. At this time, rotating the handle 10 can drive the first square valve stem 7 to rotate. Similarly, under the action of the meshing of the worm wheel 5 and the worm 6 in the regulator 4, and the connection of the worm wheel 5 and the worm 6 with the valve plate 3 and the first square valve stem 7 respectively, the valve plate 3 rotates accordingly to control the switch of the valve seat 1 and the circulation of the fluid. When closing, the handle 10 is rotated in the opposite direction and the handle 10 and the second square valve stem 9 are pushed into the first square valve stem 7 to shorten the overall length of the first square valve stem 7 and the second square valve stem 9 so that the handle 10 is located in the protective cover 12. Since the two movable grooves 17 in the valve seat 1 are slidably connected to the inside thereof with the connecting pipe 18, the two connecting pipes 18 can be slid according to demand to adjust the length of the valve seat 1.

[0022] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A length-adjustable valve, comprising a valve seat (1), characterized in that: A guide groove (2) is provided inside the valve seat (1), and a valve plate (3) is rotatably connected inside the guide groove (2). A regulator (4) is installed on the top of the valve seat (1), and a worm wheel (5) and a worm (6) are rotatably connected inside the regulator (4). The worm wheel (5) and the worm (6) are meshed. A first square valve stem (7) is rotatably connected to one side of the regulator (4), and the worm wheel (5) and the worm (6) are respectively connected to the valve plate (3) and the first square valve stem (7). A limiting groove (8) is provided inside the first square valve stem (7), and a second square valve stem (9) is slidably connected inside the limiting groove (8). The second square valve stem (9) One end is connected to a handle (10); a protective cover (12) is installed on the outer wall of the regulator (4) and located on the outside of the first square valve stem (7); a plurality of positioning holes (13) are provided inside the first square valve stem (7) and located at the bottom of the limiting groove (8); a slide groove (14) is provided inside the second square valve stem (9); a positioning rod (15) is slidably connected inside the slide groove (14); one end of the positioning rod (15) is arc-shaped, and one end of the positioning rod (15) passes through one of the positioning holes (13); a telescopic spring (16) is installed inside the slide groove (14), and one end of the telescopic spring (16) is connected to the other end of the positioning rod (15).

2. A length-adjustable valve according to claim 1, characterized in that: Movable grooves (17) are provided inside the valve seat (1) and on both sides corresponding to the guide groove (2), and a connecting pipe (18) is slidably connected inside the movable groove (17).

3. A length-adjustable valve according to claim 1, characterized in that: A flow sensor (19) is installed inside the guide groove (2) and on one side of the valve plate (3).

4. A length-adjustable valve according to claim 3, characterized in that: A controller (20) is installed on one side of the regulator (4) and located on the top of the protective cover (12), and a warning light (21) is installed on one side of the controller (20). The controller (20) is electrically connected to the flow sensor (19) and the warning light (21), respectively.

5. The length-adjustable valve according to claim 1, characterized in that: The protective cover (12) has a concave structure.

6. A length-adjustable valve according to claim 2, characterized in that: A sealing ring (11) is installed inside the movable groove (17).

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