Automatic wrench for high-position valve

Abstract

The utility model provides an automatic wrench for a high-position valve. The automatic wrench comprises a wrench rotating mechanism, a lifting adjusting rod and a bottom support mechanism which are sequentially connected. The wrench rotating mechanism comprises a rotating base disc and step claws, the rotating base disc is provided with a rotating center shaft, the multiple step claws are arranged on the circumference, around the rotating center shaft, of the rotating base disc at intervals, and each step claw is provided with multiple steps. And the same steps of the plurality of step claws are positioned on the same circumference and are used for adjusting high-position valves with corresponding sizes. The high-position valve adjusting device has the advantages that the height of the wrench rotating mechanism is adjusted through the lifting adjusting rod, then the ladder claw is matched with the rotating base disc, and the high-position valve adjusting device can be suitable for adjusting various high-position valves of different sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of valve control equipment, and particularly to an automatic wrench for high-position valves. Background Art

[0002] A valve is a mechanical device used to control the flow of liquids, gases, or other fluids. The valve controls the inlet, outlet, and flow rate of the fluid in the pipeline through a switching mechanism, and is one of the important devices in various fields. In existing factories or machine rooms, due to the intricate pipeline layout, there are many globe valves and regulating valves everywhere, and the vast majority of valves are high-position valves with the knob position set at a height of more than 1.8 m. For example, in a standardized ground-source heat pump machine room, the height range of high-position valves is 3 m to 5 m.

[0003] During daily inspections and operations, it is found that it is not easy to check whether the knobs of high-position valves with a height of 1.8 m and above are tightened during inspections, which increases the leakage risk of daily valve inspections and potential safety hazards in the factory. Moreover, the existing valve wrenches can only adjust valves of a single size, generally adjusting valves of a specified size or specific specification, and a large number of tools are required for daily inspections and operations. In addition, the existing valve wrenches are not suitable for adjusting high-position valves. Even a portable electric switch valve wrench designed according to the Chinese invention patent with the publication number CN105127935B, although it uses an electric drive method to replace manual operation and reduces the labor intensity of operators for opening and closing valves, during daily operations, operators still need to use scaffolding or ladders to climb to a height for operation, which still leads to inconvenient operation, low work efficiency, and safety accidents such as personnel falling and getting injured.

[0004] Therefore, it is necessary to study an automatic wrench for high-position valves to solve the above problems or mitigate the impacts brought by the above problems. Content of the Utility Model

[0005] The utility model provides an automatic wrench for high-position valves. By adjusting the height of the wrench rotation mechanism through a lifting adjustment rod and then cooperating the stepped claw with the rotating base plate, it can be applicable to adjusting high-position valves of various sizes and effectively solve the above problems or mitigate the impacts brought by the above problems.

[0006] The automatic wrench for high-position valves of the utility model may include a wrench rotation mechanism, a lifting adjustment rod, and a bottom support mechanism connected in sequence;

[0007] Among them, the wrench rotation mechanism includes a rotating base plate and stepped claws. The rotating base plate has a rotating central axis, and a plurality of the stepped claws are arranged at intervals on the circumference around the rotating central axis. Each stepped claw has a plurality of steps, and the same steps of the plurality of stepped claws are on the same circumference and are used to adjust high-position valves of corresponding sizes.

[0008] In one embodiment, the steps are arranged on the side of the stepped claw facing away from the rotating central axis, and the distances from different steps of the stepped claw to the rotating central axis are different.

[0009] In one embodiment, the rotating base plate is provided with a plurality of mounting holes at the same distance from the rotating central axis, and the stepped claws are detachably connected to the rotating base plate through the mounting holes.

[0010] In one embodiment, the rotating base plate is provided with multiple groups of the mounting holes, and the distances from the multiple groups of mounting holes to the rotating central axis are different.

[0011] In one embodiment, the wrench rotation mechanism further includes a driving motor and a first gear and a second gear that are meshed with each other. The driving motor is drivingly connected to the first gear, and the second gear is fixedly connected to the rotating base plate.

[0012] In one embodiment, the wrench rotation mechanism further includes a speed reducer. The output end of the driving motor is connected to the input end of the speed reducer, and the output end of the speed reducer is fixedly connected to the first gear.

[0013] In one embodiment, the lifting and adjusting rod includes multiple sections of connecting rods. Two adjacent sections of the connecting rods can be telescopically adjusted and are provided with a first locking member, and the first locking member is used to lock the relative positions of two adjacent sections of the connecting rods.

[0014] In one embodiment, the bottom support mechanism includes a plurality of support legs evenly distributed circumferentially around the lifting and adjusting rod, and the support legs can be folded or unfolded relative to the lifting and adjusting rod.

[0015] In one embodiment, the bottom support mechanism includes a movable sleeve and a fixed sleeve both sleeved on the lifting and adjusting rod. One end of the movable sleeve is hinged to one end of the support leg, and the fixed sleeve is connected to the middle of the support leg through a connecting rod. Two ends of the connecting rod are respectively hinged to the fixed sleeve and the support leg;

[0016] The movable sleeve can move axially along the lifting and adjusting rod relative to the fixed sleeve to realize the folding or unfolding of the support leg.

[0017] In one embodiment, the bottom bracket mechanism further includes a second locking member for fixing the position of the movable sleeve on the lifting adjustment rod.

[0018] Compared with the prior art, the automatic wrench for high-position valves provided by the present utility model has at least the following beneficial effects:

[0019] The automatic wrench for high-position valves of the present utility model can adjust the height of the wrench rotating mechanism through the lifting adjustment rod, making it suitable for the adjustment of high-position valves. By cooperating the stepped claw with the rotating base plate, valves of different sizes can be adjusted, so that the automatic wrench can be suitable for adjusting high-position valves of various sizes. Such a set of automatic wrenches can solve the cumbersome problems of carrying and inconvenient operation of multiple sets of tools. When an operator adjusts a high-position valve, there is no need to climb a ladder. The operator can directly operate the automatic wrench to adjust the valve, and the lifting height is adjustable, which can adapt to high-position valves of different heights, improving the safety of personnel and the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Hereinafter, the present utility model will be described in more detail based on embodiments and with reference to the drawings.

[0021] Figure 1 is a schematic structural diagram of the automatic wrench according to an embodiment of the present utility model;

[0022] Figure 2 is a schematic structural diagram of the wrench rotating mechanism acting on the valve according to an embodiment of the present utility model;

[0023] Figure 3 is a schematic structural diagram of the stepped claw installed in a set of mounting holes according to an embodiment of the present utility model;

[0024] Figure 4 is a schematic structural diagram of the stepped claw installed in another set of mounting holes according to an embodiment of the present utility model;

[0025] Figure 5 is a schematic structural diagram of the bottom bracket mechanism according to an embodiment of the present utility model.

[0026] In the drawings, the same components are denoted by the same reference numerals. The drawings are not drawn to actual scale.

[0027] Reference numerals:

[0028] 1-wrench rotating mechanism, 11-rotating base, 111-mounting hole, 12-step claw, 121-step, 13-first gear, 14-second gear, 15-drive motor, 16-reducer, 17-fixed plate, 2-lifting adjustment rod, 21-connecting rod, 22-first locking piece, 3-bottom bracket mechanism, 31-support leg, 32-movable sleeve, 33-fixed sleeve, 34-connecting rod, 35-second locking piece, 4-control switch. DETAILED DESCRIPTION

[0029] The utility model will be further described below in conjunction with the accompanying drawings.

[0030] like Figures 1 to 3 As shown, the automatic wrench for high-position valves of the utility model may include a wrench rotating mechanism 1, a lifting and lowering adjustment rod 2 and a bottom bracket mechanism 3 connected in sequence;

[0031] Among them, the wrench rotating mechanism 1 includes a rotating base 11 and a stepped claw 12. The rotating base 11 has a rotating center axis. The rotating base 11 is provided with a plurality of stepped claws 12 at intervals on a circumference around the rotating center axis. Each stepped claw 12 has a plurality of steps 121, and the same steps 121 of the plurality of stepped claws 12 are on the same circumference and are used to adjust high-position valves of corresponding sizes.

[0032] Specifically, the bottom bracket mechanism 3 is the supporting base of the automatic wrench, and can provide stable support for the lifting adjustment rod 2 and the wrench rotating mechanism 1 when adjusting the high-position valve. The lifting adjustment rod 2 has a telescopic adjustment function, which can adjust the height of the wrench rotating mechanism 1, so that it is suitable for adjusting high-position valves of different heights. The wrench rotating mechanism 1 rotates around the central axis of rotation by rotating the base plate 11, and moves the high-position valve with the help of multiple stepped claws 12 spaced apart on the circumference of the rotating base plate 11, so as to adjust the opening of the high-position valve. The same steps 121 of the multiple stepped claws 12 are on the same circumference and are used to adjust the high-position valves of corresponding sizes, so that the wrench rotating mechanism 1 can be used to adjust high-position valves of different sizes with the help of different steps 121 of the stepped claws 12.

[0033] Such an automatic wrench can be used to adjust high-position valves of various sizes. A set of automatic wrenches can solve the cumbersome problem of carrying and operating multiple sets of tools. Operators do not need to climb ladders when adjusting high-position valves. They can directly operate the automatic wrench to adjust the valves. The lifting height is adjustable and can adapt to high-position valves of different heights, thereby improving personnel safety and convenience of operation.

[0034] It should be noted that when the wrench rotating mechanism 1 rotates the high-position valve, the stepped claw 12 is engaged in the area formed by the wheel disc and two adjacent spokes to turn the valve hand wheel.

[0035] In one example, as Figure 3 shown, the step 121 is provided on the side of the stepped claw 12 away from the rotation center axis, and the distances from the different steps 121 of the stepped claw 12 to the rotation center axis are different.

[0036] Furthermore, in the direction of the stepped claw 12 approaching the rotation base plate 11, the distance from its step 121 to the rotation center axis gradually increases. In this way, the size of the wrench rotation mechanism 1 extending into the area formed by the wheel disc and two adjacent spokes through the stepped claw 12 is different, so as to adapt to the high-position valves of wheel discs with different inner diameter sizes.

[0037] In one example, as Figure 3 and Figure 4 shown, a plurality of mounting holes 111 with the same distance to the rotation center axis are provided on the rotation base plate 11, and the stepped claw 12 is detachably connected to the rotation base plate 11 through the mounting holes 111.

[0038] Specifically, the arrangement of the mounting holes 111 facilitates the disassembly and assembly of the stepped claw 12. The distances from the plurality of mounting holes 111 to the rotation center axis are the same to ensure that the position of the stepped claw 12 is on the circumference around the rotation center axis, so that a plurality of stepped claws 12 can be engaged into the wheel discs of high-position valves with appropriate sizes.

[0039] Furthermore, the mounting holes 111 can be threaded holes, square holes or long holes, and one end of the stepped claw 12 connected to the rotation base plate 11 has a structure matching the mounting holes 111.

[0040] In one example, as Figure 3 and Figure 4 shown, a plurality of groups of mounting holes 111 are provided on the rotation base plate 11, and the distances from the plurality of groups of mounting holes 111 to the rotation center axis are different.

[0041] Specifically, the stepped claw 12 is installed in different groups of mounting holes 111, and it is on different radius-sized circumferences around the rotation center axis, that is, it is applicable to high-position valves of different sizes. In this way, it can adapt to more sizes of high-position valves, and further improve the application range of the automatic wrench.

[0042] In one example, a plurality of stepped claws 12 are evenly spaced on the circumference of the rotation base plate 11 around the rotation center axis, and the number of stepped claws 12 can be 3, 4 or 5.

[0043] Furthermore, the number of stepped claws 12 is 3, and the three stepped claws 12 are spaced 120° around the rotation center axis, and the rotation base plate 11 can be a triangular plate distributed in a fan blade structure.

[0044] In one example, as Figure 2 and Figure 3As shown, the wrench rotation mechanism 1 further includes a drive motor 15 and a first gear 13 and a second gear 14 that are meshed with each other. The drive motor 15 is drivingly connected to the first gear 13, and the second gear 14 is fixedly connected to the rotating base plate 11.

[0045] Specifically, the wrench rotation mechanism 1 is driven by the drive motor 15 and the first gear 13 and the second gear 14 are meshed and transmitted. By controlling the forward and reverse rotation of the drive motor 15, the forward and reverse rotation of the first gear 13 and the second gear 14 can be controlled to drive the rotating base plate 11 to rotate forward and reverse, so as to adjust the opening degree of the high-position valve through the forward and reverse rotation and the rotation angle of the stepped claw 12.

[0046] Further, the gear radius of the first gear 13 is smaller than the gear radius of the second gear 14. The drive motor 15 is used as a power source to drive the first gear 13 with a small gear radius to rotate, and then transmitted to the second gear 14 with a large gear radius, so that a greater torque can be obtained, which is beneficial to driving the rotation adjustment of the high-position valve.

[0047] It should be noted that the center of the second gear 14 is on the rotation center axis of the rotating base plate 11.

[0048] In one example, as Figure 2 shown, the wrench rotation mechanism 1 further includes a speed reducer 16. The output end of the drive motor 15 is connected to the input end of the speed reducer 16, and the output end of the speed reducer 16 is fixedly connected to the first gear 13. The speed reducer 16 is provided between the drive motor 15 and the first gear 13, which can provide a greater torque and a slower rotation speed, so that a higher torque and a higher angle accuracy control can be achieved at a lower cost.

[0049] In one example, as Figure 2 and Figure 3 shown, the wrench rotation mechanism 1 further includes a fixing plate 17. The fixing plate 17 is connected to one end of the lifting adjustment rod 2 away from the bottom support mechanism 3, and the drive motor 15, the speed reducer 16, the first gear 13, and the second gear 14 are all installed on the fixing plate 17.

[0050] In one example, as Figure 1 and Figure 2 shown, the automatic wrench further includes a control switch 4 connected to the drive motor 15. The control switch 4 can control the forward and reverse rotation and the rotation angle of the drive motor 15. It should be noted that the connection line between the control switch 4 and the drive motor 15 can be correspondingly wound up to adapt to the adjustment of different heights.

[0051] In one example, as Figure 1As shown, the lifting adjustment rod 2 includes multiple sections of connecting rods 21. Two adjacent sections of the connecting rods 21 can be telescopically adjusted and are provided with a first locking member 22. The first locking member 22 is used to lock the relative positions of two adjacent sections of the connecting rods 21.

[0052] Specifically, the first locking member 22 can be a fastening knob. When the first locking member 22 is rotated to loosen, the telescopic adjustment of two adjacent sections of the connecting rods 21 can be performed. When the first locking member 22 is rotated to be fastened, two adjacent sections of the connecting rods 21 are relatively fixed, so that the height of the wrench rotation mechanism 1 can be adjusted to be applicable to usage environments of different heights. The number of sections of the connecting rods 21 can be 3, 4, 5 or 6, which can be specifically set according to actual needs.

[0053] In one example, as Figure 1 and Figure 5 shown, the bottom bracket mechanism 3 includes multiple support legs 31 evenly distributed circumferentially around the lifting adjustment rod 2. The support legs 31 can be folded or unfolded relative to the lifting adjustment rod 2.

[0054] Specifically, the support legs 31 can be folded or unfolded relative to the lifting adjustment rod 2, so as to form a stable support when unfolded and be convenient for carrying when folded and retracted. The number of support legs 31 can be 3, 4 or 5 to support more firmly.

[0055] In one example, as Figure 5 shown, the bottom bracket mechanism 3 includes a movable sleeve 32 and a fixed sleeve 33 both sleeved on the lifting adjustment rod 2. One end of the movable sleeve 32 is hinged to one end of the support leg 31, and the fixed sleeve 33 is connected to the middle of the support leg 31 through a connecting rod 34. Two ends of the connecting rod 34 are respectively hinged to the fixed sleeve 33 and the support leg 31;

[0056] The movable sleeve 32 can move axially along the lifting adjustment rod 2 relative to the fixed sleeve 33 to realize the folding or unfolding of the support legs 31.

[0057] Specifically, the fixed sleeve 33 is sleeved on the lifting adjustment rod 2 and fixed thereto. The movable sleeve 32 is slidably sleeved on the lifting adjustment rod 2 and can move axially along the lifting adjustment rod 2 relative to the fixed sleeve 33. One end of the support leg 31 is hinged to the outside of the movable sleeve 32, and the other end thereof is a movable end and can be used to support on the ground. A connecting rod 34 is arranged between the fixed sleeve 33 and the support leg 31. One end of the connecting rod 34 is hinged to the outside of the fixed sleeve 33, and the other end thereof is hinged to the middle of the support leg 31. In this way, the support feet can be folded or unfolded as the movable sleeve 32 moves axially along the lifting adjustment rod 2 relative to the fixed sleeve 33, and the connecting rod 34 can play a role in limiting to limit the unfolding angle of the support legs 31.

[0058] It should be noted that the hinge in the bottom bracket mechanism 3 can be connected by a rotating pin. Of course, other hinge methods that can achieve the above functions are also acceptable.

[0059] In one example, as Figure 5 shown, the bottom bracket mechanism 3 further includes a second locking member 35, and the second locking member 35 is used to fix the position of the movable sleeve 32 on the lifting adjustment rod 2.

[0060] Specifically, the second locking member 35 can be an adjusting bolt. A radially penetrating threaded hole is provided on the movable sleeve 32. The second locking member 35 can pass through the threaded hole and abut against the lifting adjustment rod 2 to fix the position of the movable sleeve 32 on the lifting adjustment rod 2, thereby fixing the opening angle of the adjusted support leg 31 to ensure the stability of the bottom bracket mechanism 3.

[0061] To better understand the above embodiments, the following further describes the usage method of the automatic wrench for high-position valves of the present invention with reference to the accompanying drawings.

[0062] First, expand the support legs 31 of the bottom bracket mechanism 3. After adjusting the expansion angle, fasten it with the second locking member 35. Then loosen the first locking member 22 of the lifting adjustment rod 2, adjust the wrench rotating mechanism 1 to align with the height of the high-position valve, and then tighten the first locking member 22 to fix it. Select the mounting hole 111 at an appropriate position corresponding to the size of the wheel disc of the high-position valve to install the stepped claw 12, and insert the stepped claw 12 into the area formed by the wheel disc and two adjacent spokes and abut against the spokes. Start the control switch 4 to perform forward and reverse rotations to adjust the opening degree of the high-position valve. In this way, the operator can control and adjust the high-position valve just by standing on the ground, thus greatly improving work efficiency and reducing safety risks.

[0063] Although the present invention has been described with reference to the preferred embodiments, various improvements can be made to it and components therein can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way. The present invention is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. An automatic wrench for a high-position valve, characterized in that, The automatic wrench comprises a wrench rotating mechanism, a lifting adjustment rod and a bottom bracket mechanism which are connected in sequence; Among them, the wrench rotating mechanism includes a rotating base and stepped claws, the rotating base has a rotating center axis, and the rotating base is provided with a plurality of stepped claws at intervals on a circumference around the rotating center axis, each of the stepped claws has a plurality of steps, and the same steps of the plurality of stepped claws are on the same circumference and are used to adjust high-position valves of corresponding sizes.

2. The automatic wrench for a high-position valve according to claim 1, wherein The step is arranged on a side of the step claw away from the rotation center axis, and different steps of the step claw have different distances from the rotation center axis.

3. The automatic wrench for high-position valves according to claim 1, characterized in that, The rotating base is provided with a plurality of mounting holes which are at the same distance from the rotating center axis, and the stepped claw is detachably connected to the rotating base through the mounting holes.

4. The automatic wrench for the high-position valve according to claim 3, characterized in that, The rotating base is provided with a plurality of groups of mounting holes, and the distances from the plurality of groups of mounting holes to the rotating central axis are different.

5. The automatic wrench for the high-position valve according to claim 1, wherein, The wrench rotating mechanism also includes a driving motor and a first gear and a second gear meshing with each other. The driving motor is transmission-connected to the first gear, and the second gear is fixedly connected to the rotating base.

6. The automatic wrench for a high-position valve according to claim 5, characterized in that, The wrench rotating mechanism further includes a reducer, the output end of the driving motor is connected to the input end of the reducer, and the output end of the reducer is fixedly connected to the first gear.

7. The automatic wrench for a high-position valve according to claim 1, wherein, The lifting and adjusting rod comprises a plurality of connecting rods, two adjacent connecting rods are telescopically adjustable and are provided with a first locking member, and the first locking member is used to lock the relative positions of the two adjacent connecting rods.

8. The automatic wrench for a high-position valve according to claim 1, characterized in that, The bottom bracket mechanism comprises a plurality of support legs evenly spaced and distributed around the lifting and lowering adjustment rod, and the support legs can be folded or unfolded relative to the lifting and lowering adjustment rod.

9. The automatic wrench for a high-position valve according to claim 8, characterized in that, The bottom bracket mechanism comprises a movable sleeve and a fixed sleeve both sleeved on the lifting adjustment rod, the movable sleeve is hinged to one end of the supporting leg, the fixed sleeve is connected to the middle part of the supporting leg through a connecting rod, and the two ends of the connecting rod are respectively hinged to the fixed sleeve and the supporting leg; The movable sleeve can move relative to the fixed sleeve along the axial direction of the lifting and lowering adjustment rod to achieve folding or unfolding of the supporting leg.

10. The automatic wrench for a high-position valve according to claim 9, wherein, The bottom bracket mechanism also includes a second locking member, which is used to fix the movable sleeve at the position of the lifting adjustment rod.

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