Electric valve opening and closing tool

Abstract

The utility model discloses an electric valve opening and closing tool which comprises a motor, a speed reducer, a valve opening control mechanism, a fixing frame and an iron chain, the fixing frame comprises a main frame, a pair of first extending frames and a pair of second extending frames, the valve opening control mechanism is arranged above a machine frame, the pair of first extending frames are detachably connected with the two sides of the main frame, and the pair of second extending frames are detachably connected with the two sides of the main frame. A plurality of connecting holes are formed in the upper portion of the first extending frame at equal intervals in the length direction, a connecting assembly capable of being detachably connected with any connecting hole is arranged at the end of the second extending frame, the fixing frame is convenient to carry after being detached, the length of the fixing frame can be adjusted according to actual use places, the iron chain and the valve body are fixed, and the fixing frame is convenient to use. According to the length of the fixing frame which is far away from the lever and lengthened, the torque reverse force in the operation process of the valve is more labor-saving, finally, the valve opening control mechanism clamps or circumferentially fixes a hand wheel shaft of the valve, then the valve opening control mechanism is started to control the hand wheel to rotate, and therefore opening and closing of the valve are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of valve equipment, in particular to an electric valve switching tool. Background Art

[0002] A valve is a device used to control the direction, pressure, and flow of a fluid in a fluid system. It is a device that allows the medium (liquid, gas, powder) in pipes and equipment to flow or stop and control its flow. It has functions such as diversion, cutoff, throttling, non-return, diversion, or overflow pressure relief. Electric-driven valves are commonly used valves. This type of drive device is usually called a valve electric device, also called an electric valve opener.

[0003] The electric valve switching tool includes a fixing frame and a valve opening control mechanism. During operation, the iron chain on the fixing rod is fixed to the valve body, and the valve opening control mechanism clamps the hand wheel of the valve and fixes it circumferentially. Then the valve opening control mechanism is opened to control the rotation of the hand wheel, thereby realizing the opening and closing of the valve. However, the valve opening control mechanism and the fixing frame of the electric valve switching tool in the prior art are integrally non-detachable, and the length of the fixing frame cannot be adjusted. The length of the fixing frame is relatively long, which is inconvenient to carry. In addition, the sizes of valve bodies of different sizes are different. If the fixing frame is too long, it is easy to cause waste of space, especially when encountering a relatively narrow operating space, the fixing frame may not be able to be inserted. If the fixing frame is too short, the fixing effect of the valve body is not good. Therefore, an electric valve switching tool with a fixing frame that is easy to carry and adjust is needed. Utility Model Content

[0004] The utility model aims at an electric valve switch tool to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: an electric valve switching tool, including a fixed frame, a valve opening control mechanism and an iron chain, the fixed frame including a main frame, a pair of first extension frames and a pair of second extension frames, the valve opening control mechanism is arranged above the frame, the pair of first extension frames are detachably connected to both sides of the main frame, a plurality of connecting holes are equidistantly arranged above the first extension frame along the length direction, and a connecting component that can be detachably connected to any connecting hole is provided at the end of the second extension frame.

[0006] By adopting the above technical scheme, the first extension frame is detachably connected to the main frame, and the second extension frame is detachably connected to the first extension frame, so that the valve opener occupies a small space after being disassembled and is easy to carry. When it is necessary to adjust the length of the fixed frame (the total length between the second extension frame and the first extension frame), the second extension frame and the first extension frame are disassembled, and the total length between the second extension frame and the first extension frame is adjusted according to the size of the valve body for adaptation. Then, the connecting assembly is connected to the corresponding connecting hole on the first extension frame, and the second extension frame is re-fixed to the first extension frame to avoid waste of space due to the fixed frame being too long and to avoid waste of space due to the fixed frame being too short. According to the distance of the lever, the length of the extended fixed frame makes it easier to suppress the torque reverse force when the valve is running, and the fixing effect on the valve body is not good. Then the iron chain is fixed to the valve body to achieve a better fixing effect. Finally, the valve opening control mechanism clamps the handwheel of the valve circumferentially and fixes it. Then, the valve opening control mechanism is turned on to control the rotation of the handwheel, thereby realizing the opening and closing of the valve.

[0007] As a further optimization of the present invention, a sliding hole is provided at the end of the second extension frame, and the connecting assembly includes a connecting rod slidably connected to the sliding hole, and an abutment is provided at the end of the connecting rod. The diameter of the abutment is larger than the diameter of the sliding rod, and a contraction spring is sleeved on the sliding rod, and the two ends of the contraction spring are respectively fixedly connected to the abutment and the second extension frame, and the end of the sliding rod away from the abutment is elastically inserted into the connecting hole.

[0008] By adopting the above technical solution, under normal conditions, the connecting rod remains in a state of passing through the sliding hole under the contraction action of the spring, thereby being inserted into the connecting hole to connect the first extension frame with the second extension frame. When the first extension frame and the second extension frame need to be disassembled, the abutment portion is pulled to lengthen the contraction spring, thereby driving the connecting rod to slide along the sliding groove, and the connecting rod slides out of the connecting hole, thereby releasing the lock between the first extension frame and the second extension frame. When the first extension frame and the second extension frame need to be reconnected, the abutment portion is released, the contraction spring contracts again, and the connecting rod is pushed back into the connecting hole.

[0009] As a further optimization of the present invention, the shape of the connecting hole is a polygon, the shape of the connecting rod is matched with the shape of the connecting hole, and the shape of the sliding hole is matched with the shape of the connecting rod.

[0010] By adopting the above technical solution, the first extension frame and the second extension frame are kept circumferentially locked and do not rotate relative to each other when connected.

[0011] As a further optimization of the utility model, the main frame is provided with a plurality of first threaded holes, the end of the first extension frame is provided with a plurality of second threaded holes, and the main frame and the first extension frame are connected by bolts.

[0012] As a further optimization of the utility model, the pair of second extension frames are each provided with a plurality of third threaded holes equidistantly spaced along the length direction; and also include a pair of screw rods threadedly connected to the pair of second extension frames, the screw rods being provided with connecting rings, and the two ends of the iron chain are connected to the pair of screw rods via connecting rings.

[0013] By adopting the above technical solution, the screw rod is connected with the third threaded holes at different positions, and the length of the iron chain is adjusted to match the valve body, so that the iron chain can fix the valve body more tightly.

[0014] As a further optimization of the utility model, the valve opening control mechanism includes a shell arranged on the main frame and a reducer arranged in the shell; it also includes a motor, the output end of the motor is connected to the input end of the reducer, and the output shaft of the reducer is extended out of the shell and is provided with a clamping device for fixing the handwheel circumferentially.

[0015] As a further optimization of the utility model, the clamping device is a three-jaw chuck.

[0016] The beneficial effects of the utility model are as follows: the first extension frame is detachably connected to the main frame, and the second extension frame is detachably connected to the first extension frame, so that the valve opener occupies a small space after being disassembled and is easy to carry. When it is necessary to adjust the length of the fixing frame (the total length between the second extension frame and the first extension frame), the second extension frame and the first extension frame are disassembled, and the total length between the second extension frame and the first extension frame is adjusted according to the size of the valve body for adaptation. Then, the connecting assembly is connected to the corresponding connecting hole on the first extension frame, and the second extension frame is re-fixed to the first extension frame to avoid waste of space due to the fixing frame being too long, and to avoid waste of space due to the fixing frame being too short. According to the distance of the lever, the length of the extended fixing frame makes it easier to suppress the torque reverse force when the valve is running, and the fixing effect on the valve body is not good. Then the iron chain is fixed to the valve body to achieve a better fixing effect. Finally, the valve opening control mechanism clamps the hand wheel of the valve circumferentially and fixes it. Then, the valve opening control mechanism is opened to control the rotation of the hand wheel, thereby realizing the opening and closing of the valve. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0019] Figure 3 It is a side sectional structural schematic diagram of the utility model.

[0020] The meaning of the numbers in the figure are as follows: 1. Main frame; 21. First extension frame; 211. Connecting hole; 22. Second extension frame; 221. Sliding hole; 222. Third threaded hole; 31. First threaded hole; 32. Second threaded hole; 4. Connecting rod; 41. Abutment portion; 42. Contraction spring; 5. Screw rod; 51. Connecting ring; 6. Chain; 7. Housing; 8. Reducer; 9. Motor; 81. Clamping device. DETAILED DESCRIPTION

[0021] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0022] See attached Figure 1-3 , the present embodiment disclosed by the utility model further provides: an electric valve switch tool, including a fixing frame, a valve opening control mechanism and an iron chain 6;

[0023] The fixed frame includes a main frame 1, and the valve opening control mechanism is arranged above the frame. Specifically, the valve opening control mechanism includes a housing 7 arranged on the main frame 1 and a reducer 8 arranged in the housing 7; it also includes a motor 9, the output end of the motor 9 is connected to the input end of the reducer 8, and the output shaft of the reducer 8 is extended out of the housing 7 and is provided with a clamping device 81 for fixing the hand wheel circumferentially. The clamping device 81 is a three-jaw chuck, and a handle is further provided on the housing 7;

[0024] The main frame 1 further comprises a pair of first extension frames 21 and a pair of second extension frames 22, wherein the pair of first extension frames 21 are detachably connected to both sides of the main frame 1, and a plurality of connection holes 211 are equidistantly arranged above the first extension frames 21 along the length direction, and a connection assembly which can be detachably connected to any connection hole 211 is arranged at an end of the second extension frame 22, and specifically, a sliding hole 221 is arranged at an end of the second extension frame 22, and the connection assembly comprises a connection rod 4 slidably connected to the sliding hole 221, and an abutment 41 is arranged at an end of the connection rod 4, and the diameter of the abutment 41 is larger than the diameter of the sliding rod, and a contraction spring 42 is sleeved on the sliding rod, and the two ends of the contraction spring 42 are respectively fixedly connected to the abutment 41 and the second extension frame 22, and one end of the sliding rod away from the abutment 41 is elastically inserted into the connection hole 211, and further, the shape of the connection hole 211 is polygonal, preferably rectangular, and the shape of the connection rod 4 is adapted to the shape of the connection hole 211, and the shape of the sliding hole 221 is adapted to the shape of the connection rod 4;

[0025] Furthermore, a pair of second extension frames 22 are each provided with a plurality of third threaded holes 222 equidistantly spaced along the length direction; and also include a pair of screw rods 5 threadedly connected to the pair of second extension frames 22 , the screw rods 5 are provided with connecting rings 51 , and both ends of the iron chain 6 are connected to the pair of screw rods 5 through the connecting rings 51 .

[0026] The principle of the utility model is: the first extension frame 21 is detachably connected to the main frame 1, and the second extension frame 22 is detachably connected to the first extension frame 21, so that the valve opener occupies less space after being disassembled and is easy to carry;

[0027] Under normal conditions, the connecting rod 4 remains in a state of passing through the sliding hole 221 under the contraction of the spring, so that it is inserted into the connecting hole 211 to connect the first extension frame 21 with the second extension frame 22. When it is necessary to adjust the length of the fixing frame (the total length between the second extension frame 22 and the first extension frame 21), the second extension frame 22 and the first extension frame 21 are disassembled, and then the length of the fixing frame (the total length between the second extension frame 22 and the first extension frame 21) is adjusted according to the size of the valve body for adaptation, and then the connecting assembly is connected to the corresponding connecting hole 211 on the first extension frame 21, and the second extension frame 22 is re-fixed with the first extension frame 21, so as to avoid the waste of space caused by the fixing frame being too long and the poor fixing effect of the valve body due to the fixing frame being too short, and then the iron chain 6 is fixed to the valve body to achieve a better fixing effect, and finally the valve opening control mechanism clamps the hand wheel of the valve to fix it circumferentially, and then the valve opening control mechanism is turned on to control the rotation of the hand wheel, so as to realize the opening and closing of the valve;

[0028] The shape of the connecting hole 211, the connecting column and the sliding hole 221 can ensure that the first extension frame 21 and the second extension frame 22 are circumferentially locked and do not rotate relative to each other when connected;

[0029] The screw rod 5 is connected with the third threaded holes 222 at different positions, and the length of the iron chain 6 is adjusted to match the valve body, so that the iron chain 6 can fix the valve body more tightly.

[0030] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications of the above assumptions should also be regarded as the protection scope of the present invention.

Claims

1. An electric valve switch tool, comprising a fixing frame, a valve opening control mechanism and an iron chain (6), characterized in that: The fixed frame comprises a main frame (1), a pair of first extension frames (21) and a pair of second extension frames (22); the valve opening control mechanism is arranged above the frame; the pair of first extension frames (21) are detachably connected to both sides of the main frame (1); a plurality of connection holes (211) are equidistantly spaced along the length direction above the first extension frame (21); and a connection component that can be detachably connected to any connection hole (211) is provided at the end of the second extension frame (22).

2. The electric valve switch tool according to claim 1, characterized in that: A sliding hole (221) is provided at the end of the second extension frame (22), and the connecting assembly includes a connecting rod (4) slidably connected to the sliding hole (221), and an abutting portion (41) is provided at the end of the connecting rod (4), and the diameter of the abutting portion (41) is larger than the diameter of the sliding rod. A contraction spring (42) is sleeved on the sliding rod, and the two ends of the contraction spring (42) are respectively fixedly connected to the abutting portion (41) and the second extension frame (22), and one end of the sliding rod away from the abutting portion (41) is elastically inserted into the connecting hole (211).

3. The electric valve switch tool according to claim 2, characterized in that: The shape of the connecting hole (211) is polygonal, the shape of the connecting rod (4) is compatible with the shape of the connecting hole (211), and the shape of the sliding hole (221) is compatible with the shape of the connecting rod (4).

4. The electric valve switch tool according to claim 1, characterized in that: The main frame (1) is provided with a plurality of first threaded holes, the end of the first extension frame (21) is provided with a plurality of second threaded holes, and the main frame (1) and the first extension frame (21) are connected by bolts.

5. The electric valve switch tool according to claim 1, characterized in that: The pair of second extension frames (22) are each provided with a plurality of third threaded holes at equal intervals along the length direction; the pair of second extension frames (22) are also provided with a pair of screw rods (5) threadedly connected to the pair of second extension frames (22), the screw rods (5) being provided with connecting rings (51), and the two ends of the iron chain (6) are connected to the pair of screw rods (5) via the connecting rings (51).

6. The electric valve switch tool according to claim 1, characterized in that: The valve opening control mechanism comprises a housing (7) arranged on a main frame (1) and a reducer (8) arranged in the housing (7); it also comprises a motor (9), the output end of the motor (9) is connected to the input end of the reducer (8), and the output shaft of the reducer (8) is provided with a clamping device (81) for fixing the hand wheel circumferentially after it extends out of the housing (7).

7. The electric valve switch tool according to claim 6, characterized in that: The clamping device (81) is a three-jaw chuck.

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