Flow-adjustable stop valve

Abstract

The flow-adjustable stop valve comprises a valve body, a liquid inlet pipe and a liquid outlet pipe are fixed to the two sides of the periphery of the valve body, a limiting ring is fixed in the valve body, the liquid outlet pipe and the liquid inlet pipe are arranged on the upper side and the lower side of the limiting ring respectively, a valve clack matched with the limiting ring is installed in the valve body in an inserted mode, and the limiting ring is fixed to the valve body. A threaded rod connected with the upper end face of the valve body in an inserted mode is fixed to the upper end face of the valve clack, a threaded ring matched with the threaded rod in a threaded mode is rotatably installed on the upper end face of the valve body, a movable gear ring is connected to the periphery of the threaded ring in an inserted mode, and a connecting ring is fixedly installed on the periphery of the movable gear ring through a connecting rod. A limiting sliding rod is fixed between the limiting ring and the upper end face of an inner cavity of the valve body, a limiting sliding hole connected with the limiting sliding rod in an inserted mode is formed in the lower end face of the valve clack, the periphery of the valve clack is attached to the inner wall of the valve body, and scales matched with the surface of the upper end of the threaded ring are arranged on the periphery of the threaded rod. The physical strength of workers is saved.

Description

Technical Field

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

[0002] As one of the most important shut-off valves, the stop valve realizes the functions of medium delivery, shut-off, and regulation. The stop valve is mainly composed of a valve body, a valve stem, a valve disc, and a valve seat. The valve stem is mostly threadedly connected to the valve body. Therefore, after the stop valve is shut off, if the staff accidentally touches or collides with the adjusting disk, the adjusting disk will rotate, and then the valve stem will rotate, causing the valve disc to open.

[0003] The patent document with publication number CN218670859U in the prior art provides a stop valve with adjustable flow rate; in operation, the device is provided with components such as a fixed plate, a sliding rod, a pull ring and a polygonal block, and after the stop valve is stopped, the adjustment disk can be limited, that is, the rotation of the adjustment disk caused by the staff accidentally touching or colliding with the adjustment disk is effectively avoided, and the limit protection of the stop valve is increased, which is conducive to the use of the stop valve; in operation, the connection plate, the column and the comparison plate are provided, and the comparison plate can be moved up when the threaded sleeve rod moves up, and it is used in conjunction with the scale line, which is convenient for the user to control the height adjustment of the valve disc, that is, it is convenient to adjust the medium flow rate according to the needs;

[0004] Although the device has many beneficial effects, the following problems still exist: the device can drive the rotating rod to rotate by rotating the adjusting disk and cooperating with the connection effect between the first bevel gear and the second bevel gear. However, in the transmission process between the two bevel gears, energy will be consumed, resulting in physical waste of the staff, and due to the height limitation of the valve body, the size of the rotating disk cannot be expanded, which will undoubtedly make it inconvenient to rotate the rotating disk. For this reason, we propose a stop valve with adjustable flow. Utility Model Content

[0005] The utility model aims to provide a stop valve with adjustable flow rate to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flow-adjustable stop valve, comprising a valve body, a liquid inlet pipe and a liquid outlet pipe are fixed on both sides of the periphery of the valve body, a limiting ring is fixed in the valve body, the liquid outlet pipe and the liquid inlet pipe are respectively arranged on the upper and lower sides of the limiting ring, a valve disc matching the limiting ring is inserted and installed in the valve body, a threaded rod inserted into the upper end face of the valve body is fixed on the upper end face of the valve disc, a threaded ring threadably matched with the threaded rod is rotatably installed on the upper end face of the valve body, a movable gear ring is inserted into the periphery of the threaded ring, and a connecting ring is fixedly installed on the periphery of the movable gear ring through a connecting rod.

[0007] Preferably, a limiting sliding rod is fixed between the limiting ring and the upper end surface of the inner cavity of the valve body, and a limiting sliding hole for plugging with the limiting sliding rod is provided on the lower end surface of the valve disc.

[0008] Preferably, the periphery of the valve flap is in contact with the inner wall of the valve body, and the thickness of the valve flap matches the diameter of the inner hole of the liquid outlet pipe, and the periphery of the threaded rod is provided with a scale matching the upper end surface of the threaded ring.

[0009] Preferably, the threaded ring is provided with a positioning tooth groove plugged into the inner cavity of the movable tooth ring on the periphery, a positioning ring is fixed to the periphery of the valve body, a positioning tooth ring plugged into the positioning tooth groove is installed on the upper end face of the positioning ring, and a spring is fixed between the positioning tooth ring and the positioning ring.

[0010] Preferably, a limiting insertion cavity is provided on the lower end surface of the positioning toothed ring, a limiting insertion rod connected to the limiting insertion cavity is fixed on the upper end surface of the positioning ring, and the spring is fixedly installed between the limiting insertion cavity and the limiting insertion rod.

[0011] Preferably, an annular limiting groove is formed on the lower end surface of the threaded ring, and an annular limiting block rotatably connected to the annular limiting groove is fixed on the upper end surface of the valve body.

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

[0013] This flow-adjustable stop valve, through the threaded cooperation between the threaded ring and the threaded rod, enables the rotating threaded ring to drive the threaded rod to move up and down. Compared with the original device, this device shortens the transmission process and effectively reduces the waste of energy. A movable gear ring plugged into the threaded ring is arranged on the periphery of the threaded ring. According to the rotation requirements of the threaded ring, the radius of the connecting ring can be adjusted. Compared with the original device, this device can further reduce the consumption of physical strength.

[0014] This flow-adjustable stop valve is provided with a positioning ring, which cooperates with a spring. After the movable tooth ring is disassembled, the positioning tooth ring can move upward and then be plugged into the threaded ring, so that the threaded ring can be positioned at the upper end of the valve body, thereby achieving the effect of positioning the valve disc, and preventing the valve disc from loosening during the liquid circulation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall external structure of the connecting ring of the utility model when it is installed;

[0016] Figure 2 This is a schematic diagram of the overall internal structure of the utility model when the connecting ring is disassembled;

[0017] Figure 3 This is a schematic diagram of the internal split structure of the valve body of the utility model;

[0018] Figure 4 It is a schematic diagram of the internal structure of the threaded ring of the utility model;

[0019] Figure 5 It is a schematic diagram of the internal split structure of the threaded ring of the utility model.

[0020] In the figure:

[0021] 1. Valve body; 11. Liquid inlet pipe; 12. Liquid outlet pipe; 13. Limit ring; 14. Valve disc; 15. Threaded rod; 16. Limit slide rod; 17. Limit slide hole;

[0022] 2. Threaded ring; 21. Positioning tooth ring; 22. Movable tooth ring; 221. Connecting ring; 23. Positioning tooth groove; 24. Spring; 25. Positioning ring; 26. Ring-shaped limiting groove; 27. Ring-shaped limiting block; 28. Limiting insertion cavity; 29. ​​Limiting insertion rod. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-5 The utility model provides a technical solution: a flow-adjustable stop valve, comprising a valve body 1, a liquid inlet pipe 11 and a liquid outlet pipe 12 are fixed on both sides of the periphery of the valve body 1, a limiting ring 13 is fixed inside the valve body 1, the liquid outlet pipe 12 and the liquid inlet pipe 11 are respectively arranged on the upper and lower sides of the limiting ring 13, a valve disc 14 matching the limiting ring 13 is inserted and installed in the valve body 1, a threaded rod 15 inserted with the upper end surface of the valve body 1 is fixed on the upper end surface of the valve disc 14, a threaded ring 2 threadedly matched with the threaded rod 15 is rotatably installed on the upper end surface of the valve body 1, a movable gear ring 22 is inserted on the periphery of the threaded ring 2, and a connecting ring 221 is fixedly installed on the periphery of the movable gear ring 22 through a connecting rod.

[0025] Working principle: When the valve body 1 is opened, the movable gear ring 22 is plugged into the threaded ring 2. According to the rotation radius requirement, the connecting ring 221 with a radius adaptation is installed on the periphery of the threaded ring 2. By rotating the connecting ring 221, the threaded ring 2 is driven to rotate. Through the threaded cooperation between the connecting ring 221 and the threaded rod 15, the threaded rod 15 and the valve disc 14 are driven to move up and down, and the overlapping area between the valve disc 14 and the inner hole of the liquid outlet pipe 12 is adjusted to achieve the effect of opening the liquid outlet pipe 12, and the liquid flow rate can be controlled.

[0026] Specifically, a limiting slide rod 16 is fixed between the limiting ring 13 and the upper end surface of the inner cavity of the valve body 1, a limiting slide hole 17 which is plugged into the limiting slide rod 16 is opened on the lower end surface of the valve flap 14, the outer periphery of the valve flap 14 is in contact with the inner wall of the valve body 1, and the thickness of the valve flap 14 matches the inner hole diameter of the liquid outlet pipe 12, and the outer periphery of the threaded rod 15 is provided with a scale which matches the upper end surface of the threaded ring 2.

[0027] Through the plug-in cooperation between the limiting slide rod 16 and the limiting slide hole 17, the rotating threaded ring 2 can drive the valve flap 14 to move up and down through the threaded cooperation between it and the threaded rod 15, and the outer periphery of the valve flap 14 is arranged to fit the inner wall of the valve body 1 to prevent liquid from overflowing around the valve flap 14. The thickness of the valve flap 14 matches the inner hole diameter of the liquid outlet pipe 12, so that the liquid outlet pipe 12 can only be connected with the cavity on the lower side of the valve flap 14 to prevent liquid from flowing back from the liquid outlet pipe 12 to the cavity on the upper side of the valve flap 14. A scale is set to observe the up and down movement position of the valve flap 14.

[0028] It is worth mentioning that a positioning tooth groove 23 which is plugged into the inner cavity of the movable tooth ring 22 is provided on the periphery of the threaded ring 2, a positioning ring 25 is fixed on the periphery of the valve body 1, a positioning tooth ring 21 which is plugged into the positioning tooth groove 23 is installed on the upper end face of the positioning ring 25, a spring 24 is fixed between the positioning tooth ring 21 and the positioning ring 25, a limiting insertion cavity 28 is provided on the lower end face of the positioning tooth ring 21, a limiting plug rod 29 which is plugged into the limiting insertion cavity 28 is fixed on the upper end face of the positioning ring 25, the spring 24 is fixedly installed between the limiting insertion cavity 28 and the limiting plug rod 29, an annular limiting groove 26 is provided on the lower end face of the threaded ring 2, and an annular limiting block 27 which is rotatably connected to the annular limiting groove 26 is fixed on the upper end face of the valve body 1.

[0029] A positioning tooth groove 23 is provided, and the movable tooth ring 22 is plugged into the positioning tooth groove 23. The movable tooth ring 22 plugged into the outer periphery of the threaded ring 2 will push the positioning tooth ring 21 to move downward to the outer periphery of the valve body 1, thereby separating the positioning tooth ring 21 from the threaded ring 2, releasing its restricting effect on the threaded ring 2, so that the rotating connecting ring 221 can drive the threaded ring 2 to rotate with it. When the connecting ring 221 and the movable tooth ring 22 are disassembled, under the action of the spring 24 restoring the deformation, the positioning tooth ring 21 moves upward along the limiting insertion cavity 28 and the limiting insertion rod 29 plug-in movement direction, so that the positioning tooth ring 21 is plugged into the positioning tooth groove 23 on the outer periphery of the threaded ring 2, thereby achieving the effect of positioning the threaded ring 2, and then the threaded rod 15 and the valve flap 14 can be positioned to prevent the valve flap 14 from loosening.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flow-adjustable stop valve, comprising a valve body (1), characterized in that: A liquid inlet pipe (11) and a liquid outlet pipe (12) are fixed on both sides of the periphery of the valve body (1); a limit ring (13) is fixed inside the valve body (1); the liquid outlet pipe (12) and the liquid inlet pipe (11) are respectively arranged on the upper and lower sides of the limit ring (13); a valve flap (14) matching the limit ring (13) is inserted and installed inside the valve body (1); a threaded rod (15) inserted into the upper end surface of the valve flap (14) is fixed; a threaded ring (2) threadably matched with the threaded rod (15) is rotatably installed on the upper end surface of the valve body (1); a movable toothed ring (22) is inserted into the periphery of the threaded ring (2); and a connecting ring (221) is fixedly installed on the periphery of the movable toothed ring (22) via a connecting rod.

2. A flow-adjustable stop valve according to claim 1, characterized in that: A limiting slide rod (16) is fixed between the limiting ring (13) and the upper end surface of the inner cavity of the valve body (1), and a limiting slide hole (17) for plugging into the limiting slide rod (16) is provided on the lower end surface of the valve flap (14).

3. A flow-adjustable stop valve according to claim 1, characterized in that: The periphery of the valve flap (14) is in contact with the inner wall of the valve body (1), and the thickness of the valve flap (14) matches the diameter of the inner hole of the liquid outlet pipe (12). The periphery of the threaded rod (15) is provided with a scale matching the upper end surface of the threaded ring (2).

4. The flow-adjustable stop valve according to claim 1, characterized in that: The threaded ring (2) is provided with a positioning tooth groove (23) on the periphery thereof and is plugged into the inner cavity of the movable tooth ring (22); a positioning ring (25) is fixed to the periphery of the valve body (1); a positioning tooth ring (21) plugged into the positioning tooth groove (23) is plugged and installed on the upper end surface of the positioning ring (25); and a spring (24) is fixed between the positioning tooth ring (21) and the positioning ring (25).

5. A flow-adjustable stop valve according to claim 4, characterized in that: The lower end surface of the positioning toothed ring (21) is provided with a limit insertion cavity (28); the upper end surface of the positioning ring (25) is fixed with a limit insertion rod (29) plugged into the limit insertion cavity (28); and the spring (24) is fixedly installed between the limit insertion cavity (28) and the limit insertion rod (29).

6. A flow-adjustable stop valve according to claim 4, characterized in that: The lower end surface of the threaded ring (2) is provided with an annular limiting groove (26), and the upper end surface of the valve body (1) is fixed with an annular limiting block (27) rotatably connected to the annular limiting groove (26).

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