Power assisting mechanism for valve hand wheel

Abstract

The utility model relates to the technical field of valves, in particular to a power assisting mechanism for a valve hand wheel, which comprises a first connecting rod, a rod sleeve is sleeved on the outer side of the first connecting rod, a second clamping seat is welded at the bottom of the rod sleeve, a fixing component is arranged at the top of the rod sleeve, and a first clamping seat is welded at one end of the bottom of the first connecting rod. A second structural sleeve is welded to one end of the first connecting rod, the outer side, located on one side of the rod sleeve, of the first connecting rod is sleeved with a first structural sleeve, a second connecting rod is welded to one side of the first structural sleeve, and the second connecting rod penetrates through the second structural sleeve; after the first clamping base is clamped on the outer side of the valve hand wheel, the rod sleeve and the second clamping base at the bottom of the rod sleeve are moved, the position of the second clamping base can be adjusted according to the diameter of the valve hand wheel, and the first connecting rod and the second connecting rod can stretch out and draw back conveniently through the first structural sleeve and the second structural sleeve.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a power-assisting mechanism for a valve handwheel. Background Art

[0002] A valve is a pipeline accessory used to open and close pipelines, control flow direction, and adjust and control the parameters (temperature, pressure, and flow) of the conveying medium. A valve handwheel is a device used to operate a valve, usually installed on the handwheel shaft of the valve to manually open or close the valve.

[0003] The valve handwheel is installed on the valve stem, which may cause it to rust due to environmental factors, thereby increasing the difficulty of personnel to rotate it, and a power-assisting device is needed for assistance. However, the existing power-assisting mechanisms for valve handwheels are all fixed structures and cannot be adjusted or extended. Therefore, a power-assisting mechanism for a valve handwheel is proposed. According to the diameter of the valve handwheel, the movable rod sleeve can adjust the distance between the second clamping seat and the first clamping seat, and the first connecting rod and the second connecting rod can be extended and retracted to facilitate length adjustment. Utility Model Content

[0004] In response to the problems in the existing technology, the utility model provides a power-assisting mechanism for a valve handwheel. According to the diameter of the valve handwheel, the movable rod sleeve can adjust the distance between the second clamping seat and the first clamping seat, and the first connecting rod and the second connecting rod are telescopic to facilitate length adjustment.

[0005] The technical solution adopted by the utility model to solve the technical problem is a power assist mechanism for a valve handwheel, comprising a first connecting rod, a rod sleeve is sleeved on the outer side of the first connecting rod, a second clamping seat is welded to the bottom of the rod sleeve, a fixing assembly is provided on the top of the rod sleeve, and a first clamping seat is welded to one end of the bottom of the first connecting rod;

[0006] A second structural sleeve is welded to one end of the first connecting rod, the first connecting rod is sleeved with the first structural sleeve on the outside of one side of the rod sleeve, a second connecting rod is welded to one side of the first structural sleeve, and the second connecting rod passes through the second structural sleeve.

[0007] By adopting the above technical solution, the first clamping seat is clamped on the outside of the valve handwheel, the rod sleeve is moved according to the diameter of the valve handwheel, and the position of the second clamping seat is adjusted so that the second clamping seat is clamped on the outside of the valve handwheel away from the first clamping seat. The first clamping seat and the second clamping seat are rotated by the first connecting rod and the second connecting rod to drive the valve handwheel to rotate. The arrangement of the first structural sleeve and the second structural sleeve facilitates the extension and retraction of the first connecting rod and the second connecting rod.

[0008] Specifically, the fixing assembly includes a cylinder connected to the top of the rod sleeve through a threaded groove, the bottom of the cylinder is connected to the rod sleeve, and the top of the cylinder is sleeved with a latch rod.

[0009] Specifically, a limiting ring is sleeved on the outer side of the latch rod located inside the cylinder, and a compression spring is sleeved on the outer side of the latch rod located on the top of the limiting ring.

[0010] Specifically, the top of the first structural sleeve is connected with a fixing bolt through a threaded groove, and the top of the first connecting rod is provided with clamping holes at equal intervals.

[0011] Specifically, a handle is sleeved on one end of the first connecting rod.

[0012] Specifically, the first connecting rod, the first structural sleeve, the first clamping seat and the second clamping seat are all made of stainless steel.

[0013] Beneficial effects of the utility model:

[0014] The utility model discloses a power-assisting mechanism for a valve handwheel. The first clamping seat is clamped on the outside of the valve handwheel, and then the latch rod is pulled up to make its bottom end leave the clamping hole. The rod sleeve can be moved according to the diameter of the valve handwheel to adjust the distance between the second clamping seat and the first clamping seat so that the second clamping seat is clamped on the outside of the valve handwheel away from the first clamping seat.

[0015] The utility model describes a power assist mechanism for a valve handwheel, in which the second connecting rod passes through the second structural sleeve at one end of the first connecting rod, and the first connecting rod passes through the first structural sleeve at one end of the second connecting rod, so that the first connecting rod and the second connecting rod can be telescopic, making it easy to adjust the length of the first connecting rod and the second connecting rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

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

[0018] Figure 2 This is a schematic diagram of the first connecting rod structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the second connecting rod structure of the present invention;

[0020] Figure 4 This is a schematic diagram of the rod sleeve structure of the utility model;

[0021] Figure 5 This is a schematic diagram of the fixing assembly structure of the utility model;

[0022] In the figure: 1. First connecting rod; 2. First structural sleeve; 3. Rod sleeve; 4. Fixing assembly; 401. Cylinder; 402. Latch rod; 403. Limiting ring; 404. Compression spring; 405. Structural block; 5. Second connecting rod; 6. Second structural sleeve; 7. First clamping seat; 8. Second clamping seat; 9. Clamping hole; 10. Fixing bolt; 11. Handle. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] According to the valve hand wheel diameter, the distance between the second card seat and the first card seat can be adjusted by moving the rod sleeve. The first connecting rod and the second connecting rod are telescopic to facilitate length adjustment. Figure 1-5 As shown, the power-assisting mechanism for a valve handwheel of the utility model comprises a first connecting rod 1, a rod sleeve 3 is sleeved on the outer side of the first connecting rod 1, a second clamping seat 8 is welded to the bottom of the rod sleeve 3, a fixing assembly 4 is provided on the top of the rod sleeve 3, and a first clamping seat 7 is welded to one end of the bottom of the first connecting rod 1;

[0025] A second structural sleeve 6 is welded to one end of the first connecting rod 1 , and a first structural sleeve 2 is sleeved on the outer side of the first connecting rod 1 located on one side of the rod sleeve 3 . A second connecting rod 5 is welded to one side of the first structural sleeve 2 , and the second connecting rod 5 passes through the second structural sleeve 6 .

[0026] When in use, the first clamping seat 7 is clamped on the outside of the valve handwheel, the rod sleeve 3 is moved according to the diameter of the valve handwheel, and the position of the second clamping seat 8 is adjusted so that the second clamping seat 8 is clamped on the outside of the valve handwheel away from the first clamping seat 7. The first clamping seat 7 and the second clamping seat 8 are rotated by the first connecting rod 1 and the second connecting rod 5 to drive the valve handwheel to rotate. The setting of the first structural sleeve 2 and the second structural sleeve 6 facilitates the extension and retraction of the first connecting rod 1 and the second connecting rod 5.

[0027] For example, Figure 5 As shown, the present invention also includes that the fixing assembly 4 includes a cylinder 401 connected to the top of the rod sleeve 3 through a threaded groove, the bottom of the cylinder 401 is connected to the rod sleeve 3, and the top of the cylinder 401 is sleeved with a latch rod 402.

[0028] When in use, the latch rod 402 is sleeved on the top of the cylinder 401 and can move up and down.

[0029] For example, Figure 5 As shown, the present invention further includes that a limiting ring 403 is sleeved on the outer side of the latch rod 402 located inside the cylinder 401 , and a compression spring 404 is sleeved on the outer side of the latch rod 402 located on the top of the limiting ring 403 .

[0030] When in use, the compression spring 404 pushes the latch rod 402 downward through the limiting ring 403 , and the limiting ring 403 can prevent the latch rod 402 from falling out of the cylinder 401 .

[0031] For example, Figure 2 、 Figure 3 As shown, the present invention further includes that a fixing bolt 10 is connected to the top of the first structural sleeve 2 through a threaded groove, and clamping holes 9 are equidistantly opened on the top of the first connecting rod 1.

[0032] When in use, tighten the fixing bolt 10 so that its bottom end is inserted into the corresponding card hole 9, which can fix the telescopic first connecting rod 1 and the second connecting rod 5, and insert the bottom end of the latch rod 402 into the corresponding card hole 9 to fix the moved rod sleeve 3.

[0033] For example, Figure 3 As shown, the present invention further includes that one end of the first connecting rod 1 is sleeved with a handle 11 .

[0034] During use, the handle 11 is provided to facilitate a person to hold and rotate the second connecting rod 5 .

[0035] For example, Figure 1 As shown, the present invention also includes that the first connecting rod 1, the first structural sleeve 2, the first clamping seat 7 and the second clamping seat 8 are all made of stainless steel.

[0036] When in use, the first connecting rod 1, the first structural sleeve 2, the first clamping seat 7 and the second clamping seat 8 made of stainless steel have good corrosion resistance, high strength and are not easy to deform.

[0037] When the utility model is in use, the operator clamps the first clamping seat 7 on the outside of the valve handwheel, then pulls up the latch rod 402 so that its bottom end leaves the clamping hole 9, and then the rod sleeve 3 can be moved according to the diameter of the valve handwheel, and the distance between the second clamping seat 8 and the first clamping seat 7 is adjusted so that the second clamping seat 8 is clamped on the outside of the valve handwheel away from the first clamping seat 7. After loosening the latch rod 402, the compression spring 404 pushes the latch rod 402 downward through the limiting ring 403, so that its bottom end is inserted into the corresponding clamping hole 9, thereby fixing the moved rod sleeve 3;

[0038] A person holds the handle 11 and rotates the first clamping seat 7 and the second clamping seat 8 through the second connecting rod 5 and the first connecting rod 1, thereby driving the valve handwheel to rotate. The valve handwheel is rotated by the lever principle, which reduces the force required for the person to rotate the valve handwheel and achieves the purpose of power assistance.

[0039] The second connecting rod 5 passes through the second structural sleeve 6 at one end of the first connecting rod 1, and the first connecting rod 1 passes through the first structural sleeve 2 at one end of the second connecting rod 5, so that the first connecting rod 1 and the second connecting rod 5 can be telescopic, which is convenient for adjusting the length of the first connecting rod 1 and the second connecting rod 5. Tighten the fixing bolt 10 so that its bottom end is inserted into the corresponding card hole 9, and the first connecting rod 1 and the second connecting rod 5 after length adjustment can be fixed.

[0040] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A power assist mechanism for a valve handwheel, characterized in that: It comprises a first connecting rod (1), a rod sleeve (3) is sleeved on the outside of the first connecting rod (1), a second clamping seat (8) is welded to the bottom of the rod sleeve (3), a fixing assembly (4) is provided on the top of the rod sleeve (3), and a first clamping seat (7) is welded to one end of the bottom of the first connecting rod (1); A second structural sleeve (6) is welded to one end of the first connecting rod (1); a first structural sleeve (2) is sleeved on the outer side of the first connecting rod (1) located on one side of the rod sleeve (3); a second connecting rod (5) is welded to one side of the first structural sleeve (2); and the second connecting rod (5) passes through the second structural sleeve (6).

2. A valve handwheel power assist mechanism according to claim 1, characterized in that: The fixing assembly (4) comprises a cylinder (401) connected to the top of the rod sleeve (3) via a threaded groove, the bottom of the cylinder (401) is connected to the rod sleeve (3), and the top end of the cylinder (401) is sleeved with a latch rod (402).

3. A valve handwheel power assist mechanism according to claim 2, characterized in that: The latch rod (402) is located inside the cylinder (401) and is sleeved with a limiting ring (403) on its outer side. The latch rod (402) is located on the top of the limiting ring (403) and is sleeved with a compression spring (404) on its outer side.

4. The power assist mechanism for a valve handwheel according to claim 1, characterized in that: The top of the first structural sleeve (2) is connected to a fixing bolt (10) via a threaded groove, and the top of the first connecting rod (1) is provided with clamping holes (9) at equal intervals.

5. The power assist mechanism for a valve handwheel according to claim 1, characterized in that: One end of the first connecting rod (1) is sleeved with a handle (11).

6. The power assist mechanism for a valve handwheel according to claim 1, characterized in that: The first connecting rod (1), the first structural sleeve (2), the first clamping seat (7) and the second clamping seat (8) are all made of stainless steel.

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