Electric valve wrench

Abstract

The invention belongs to the technical field of valve opening and closing equipment, and particularly relates to an electric valve wrench. Comprising a connecting rod device and a locking device, the connecting rod device comprises a battery, a control switch, a driving motor and a circular turntable, the control switch is used for controlling the battery to supply power to the driving motor, the driving motor is used for driving the circular turntable to rotate, and the locking device comprises a movable pin, a positioning plate and a locking pin; the movable pin and the lock pin respectively penetrate through the two holes and are vertically connected with the positioning plate to form a U-shaped structure for clamping a valve hand wheel to drive the valve to rotate so as to open or close the valve, so that the valve can be conveniently opened and closed in a labor-saving manner, and the valve opening and closing device can be applied to valve opening and closing in a complex space and can also be suitable for hand wheels with different sizes; the valve in a complex space is more convenient to open and close, the workload of workers can be reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of valve switch equipment, and in particular relates to an electric valve wrench. Background Art

[0002] In the production process of various industries such as petrochemicals, a large number of valves are used on the production site. During daily operation, the valves need to be frequently opened and closed, and most of them are opened and closed by handwheels to drive the valve stem. However, in some production sites, some valves are installed in positions that are difficult for operators to operate. At the same time, in some specific places, a large number of valves need to be opened and closed for a long time. The above reasons make it difficult to open and close some valves and the operation is labor-intensive. For this reason, a portable valve opening and closing tool that can be used in a small space and can greatly reduce the operator's movement range is needed to ensure convenient valve opening and closing under complex conditions.

[0003] The Chinese invention patent application with application publication number CN105127935A discloses a portable hinged electric valve wrench, including a worm gear transmission pair fixedly arranged in the transmission pair space, the worm end of the worm gear transmission pair is connected to the motor, more than two clamping devices are fixed on the outer side surface of the chassis end of the central cylinder, and the upper connecting end of the central cylinder is connected to the worm end of the worm gear transmission pair. The defect is that when using it, the nut at the upper end of the stud needs to be manually rotated to force the upper clamping jaw to clamp with the lower clamping jaw, so as to achieve the purpose of clamping transmission, which makes it impossible to use it in some high or narrow places where operators are inconvenient to enter.

[0004] The Chinese utility model patent application with the authorization announcement number CN217539801U discloses an electric valve wrench, including a connecting rod and a first locking rod and a second locking rod installed at intervals on the connecting rod, and the two locking rods are respectively installed with contact wheels that contact the valve handwheel of the valve to be opened, the contact wheel on the first locking rod is a first contact wheel that contacts the valve handwheel first, and the contact wheel on the second locking rod is a rear contact wheel that contacts the valve handwheel later, and at least one of the contact wheels is a driving wheel that drives the valve handwheel to rotate. The defect is that when the friction between the valve handwheel and the contact wheel is insufficient, it is easy to cause slippage and make it difficult to open and close the valve. Summary of the invention

[0005] The purpose of the present invention is to provide an electric valve wrench to solve the problems of the prior art that it is inconvenient to open and close valves in a complex space and the wrench is easy to slip when opening and closing the valve.

[0006] In order to solve the above technical problems, the present invention provides an electric valve wrench, including a driving motor and a turntable, the driving motor drives the connected turntable to rotate the turntable, and is characterized in that the electric valve wrench also includes at least one locking device installed on the turntable, the locking device includes a connecting piece and a clamping piece, the connecting piece is a hinge-type connecting piece, the hinge-type connecting piece includes at least one hinge section, each hinge section can rotate 360° on a plane parallel to the turntable plane relative to the connection points at both ends thereof, one end of the hinge-type connecting piece is connected to the turntable, and can rotate 360° on a plane parallel to the turntable plane with the connection point as the axis, and a clamping piece is installed on the hinge at the other end of the hinge-type connecting piece, and the clamping piece is used to clamp the valve handwheel.

[0007] The beneficial effects are as follows: in order to solve the problems of inconvenience in opening and closing valves in complex spaces and easy slipping of wrenches when opening and closing valves in the prior art, a hinged locking device is installed on the turntable to clamp the valve handwheel, and the turntable is driven by a driving motor to drive the valve to rotate, so as to achieve convenient and labor-saving valve opening and closing. It can be applied to valve opening and closing in complex spaces, and can also be suitable for valve handwheels of different sizes and styles by changing the position of the locking device, which not only makes valve opening and closing in complex spaces more convenient, but also reduces the workload of workers and improves work efficiency.

[0008] Furthermore, each hinge of the hinge-type connector is a connecting plate with holes at both ends, and the connecting plates are connected to each other and to the turntable through the holes.

[0009] The beneficial effects are as follows: the position adjustment of the connecting piece is facilitated so that the locking device can be moved to a position where the valve handwheel can be clamped, and the electric valve wrench is suitable for valve handwheels of different sizes and styles.

[0010] Furthermore, the connecting plate with the clamp installed is a positioning plate, and the clamp includes a movable pin and a locking pin. The movable pin is installed on the positioning plate through the hole connecting the positioning plate and the connecting plate, and the locking pin is installed on the positioning plate through the hole at the other end of the positioning plate, so that the movable pin, the positioning plate and the locking pin form a U-shaped structure to clamp the valve handwheel.

[0011] The beneficial effect is that workers do not need to manually connect the valve and the wrench, but only need to clamp the two ends of the valve handwheel with the clamp, which makes the valve switch in a complex space more convenient and can also reduce the workload of workers.

[0012] Furthermore, the hinged connection member includes two hinges.

[0013] Furthermore, the electric valve wrench comprises two locking devices, and the two locking devices are symmetrically installed on the turntable about a certain axial symmetry line of the turntable.

[0014] The beneficial effects are: the connection between the electric valve wrench and the valve can be made more stable, the electric valve wrench can drive the valve to rotate faster, and the work efficiency can be improved.

[0015] Furthermore, a through hole is provided at the center of the circular rotating disk, which is used to provide a passage for a lead screw at the center of a valve with a larger valve opening.

[0016] The beneficial effect is that the electric valve wrench of the present invention is applicable to more types of valves.

[0017] Furthermore, anti-slip sleeves are installed around the outer sides of the locking pin and the movable pin.

[0018] The beneficial effects are: the connection between the electric valve wrench and the valve can be made more stable, the electric valve wrench can drive the valve to rotate faster, and the work efficiency can be improved.

[0019] Furthermore, a driving gear is installed on the driving motor, which meshes with teeth installed on the other side of the turntable locking device to drive the turntable to rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a front view of the electric valve wrench of the present invention;

[0021] Figure 2 It is a left side view of the electric valve wrench of the present invention;

[0022] Figure 3 Schematic diagram of the locking device of the present invention.

[0023] Among them: 1-cylindrical shell; 2-cylindrical connecting rod; 3-through hole; 401-first main shaft; 402-second main shaft; 501-first connecting plate; 502-second connecting plate; 601-first movable pin; 602-second movable pin; 701-first positioning plate; 702-second positioning plate; 801-first locking pin; 802-second locking pin; 9-battery; 10-control switch; 11-drive motor; 12-drive gear; 13-turntable teeth; 14-circular turntable; 15-bearing; 16-through hole seat; 17 anti-slip sleeve. DETAILED DESCRIPTION

[0024] The basic concept of the present invention is: it includes a connecting rod device and a locking device, the connecting rod device includes a driving motor, a battery, a circular rotating disk with teeth and a switch, the switch is used to control the start and stop of the driving motor, the battery is used to power the driving motor, the driving motor is used to drive the circular rotating disk to rotate, and the locking device is installed on the circular rotating disk to lock the valve handwheel to drive the valve to rotate and control the opening and closing of the valve. Based on this concept, an electric valve wrench of the present invention can be realized.

[0025] The present invention will be described in detail below with reference to the accompanying drawings and method embodiments.

[0026] Electric valve wrench embodiment:

[0027] An electric valve wrench of the present invention has a front view as shown in Figure 1 As shown, the left view is Figure 2 As shown, the wrench includes a connecting rod device and a locking device, the connecting rod device includes a cylindrical shell 1, a cylindrical connecting rod 2, a through hole 3, a battery 9, a control switch 10, a drive motor 11, a circular turntable 14 and a bearing 15; the locking device includes two symmetrically installed hinged locking mechanisms, namely a first locking mechanism and a second locking mechanism, the first locking mechanism includes a first main shaft 401, a first connecting plate 501, a first movable pin 601, a first positioning plate 701 and a first locking pin 801, and the second locking mechanism includes a second main shaft 402, a second connecting plate 502, a second movable pin 602, a second positioning plate 702 and a second locking pin 802.

[0028] The side of the cylindrical shell 1 is connected to the cross section of the cylindrical connecting rod 2, and the two circular surfaces of the cylindrical shell 1 are flush with the side of the cylindrical connecting rod 2, the height of the cylindrical shell 1 is connected to the inside of the cylindrical connecting rod 2, and the cylindrical connecting rod 2 is used for workers to hold and place the wrench at a desired position; a circular turntable 14 is installed on the front of the cylindrical shell 1, the circular turntable 14 is embedded in the cylindrical shell 1 and is flush with the side edge of the cylindrical shell 1, and the circular turntable 14 is used to drive the locking device to rotate; the centers of the cylindrical shell 1 and the circular turntable 14 are both provided with holes, through which One end of the hole seat 16 is connected to the center hole of the cylindrical housing 1, and the other end is connected to the center hole of the circular turntable 14 through the bearing 15. The cylindrical housing 1 and the center of the circular turntable 14 are connected through the through hole seat 16 to form a through hole 3, which is used to provide a passage for the lead screw in the center of the valve with a larger valve opening; the control switch 10, the drive motor 11 and the battery 9 are all installed in the cylindrical connecting rod 2, the control switch 10 is used to control the start and stop of the drive motor 11, the battery 9 is used to power the drive motor 11, and the drive motor 11 is used to drive the circular turntable 14 to rotate. Among them, the drive motor 11 is connected to the circular turntable 14 through the drive gear 12 and the turntable teeth 13, the drive gear 12 is arranged and installed on the drive motor 11, and the turntable teeth 13 are arranged on the back of the circular turntable 14 and mesh with the drive gear 12.

[0029] The first locking mechanism has the same structure as the second locking mechanism, and this embodiment is described based on the first locking mechanism; two holes are opened at both ends of the first connecting plate 501 and the first positioning plate 701, and the first connecting plate 501 is connected to the circular turntable 14 with the first main shaft 401 through the hole at one end, and the hole at the other end is connected to the hole at one end of the first positioning plate 701 through the first movable pin 601; the hole at the other end of the first positioning plate 701 is connected to the first locking pin 801; the first movable pin 601, the first positioning plate 701 and the first locking pin 801 form a first U-shaped structure, and the first U-shaped structure opens toward the direction of the valve handwheel when in use, so that the first movable pin 601 and the first locking pin 801 can clamp the handwheel, such as Figure 3 shown.

[0030] Among them, the first connecting plate 501, the first movable pin 601, the first positioning plate 701 and the first locking pin 801 rotate 360° in the radial direction of the circular turntable 14 with the first main shaft 401 as the axis; the first positioning plate 701 and the first locking pin 801 rotate 360° in the radial direction of the circular turntable 14 with the first movable pin 601 as the axis; the position of the above-mentioned first U-shaped structure is changed by the above-mentioned rotation, so that the valve wrench is suitable for handwheel switches of different sizes.

[0031] The steps of using the electric valve wrench include:

[0032] 1) First, according to the size of the valve hand wheel that needs to be rotated, rotate the first connecting plate 501, the second connecting plate 502, the first positioning plate 701 and the second positioning plate 702, so that the first U-shaped structure composed of the first movable pin 601, the first positioning plate 701 and the first locking pin 801 and the second U-shaped structure composed of the second movable pin 602, the second positioning plate 702 and the second locking pin 802 are moved to appropriate positions.

[0033] 2) Align the U-shaped openings of the first U-shaped structure and the second U-shaped structure with the valve handwheel to clamp the valve handwheel; turn on the control switch 10 to start the drive motor 11, drive the circular turntable 14 to rotate, and the locking device on the circular turntable 14 drives the valve to rotate to complete the opening and closing of the valve.

[0034] The present invention rotates the connecting plate and the positioning plate to change the positions of the movable pin and the locking pin to clamp the hand wheel, and then drives the motor to rotate the circular turntable to achieve convenient and labor-saving valve switching. The present invention can be used not only for valve switching in complex spaces, but also for hand wheels of different sizes, which not only makes valve switching in complex spaces more convenient, but also reduces the workload of workers and improves work efficiency.

Claims

1. An electric valve wrench, comprising a drive motor and a turntable, wherein the drive motor drives the turntable to rotate, and is characterized in that: The electric valve wrench also includes at least one locking device installed on the turntable, the locking device includes a connecting piece and a clamping piece, the connecting piece is a hinged connecting piece, the hinged connecting piece includes at least one hinge section, each hinge section can rotate 360° on a plane parallel to the turntable plane relative to the connection points at both ends of the hinge section, one end of the hinged connecting piece is connected to the turntable, and can rotate 360° on a plane parallel to the turntable plane with the connection point as the axis, and a clamping piece is installed on the hinge at the other end of the hinged connecting piece, and the clamping piece is used to clamp the valve handwheel.

2. The electric valve wrench according to claim 1, characterized in that: Each hinge of the hinge-type connector is a connecting plate with holes at both ends, and the connecting plates are connected to each other and the connecting plates and the rotating disk are connected through the holes.

3. The electric valve wrench according to claim 1 or 2, characterized in that: The connecting plate with the clamp installed is a positioning plate, and the clamp includes a movable pin and a locking pin. The movable pin is installed on the positioning plate through the hole connecting the positioning plate and the connecting plate, and the locking pin is installed on the positioning plate through the hole at the other end of the positioning plate, so that the movable pin, the positioning plate and the locking pin form a U-shaped structure to clamp the valve handwheel.

4. The electric valve wrench according to claim 1, characterized in that: The hinged connection comprises two hinge sections.

5. The electric valve wrench according to claim 1, characterized in that: The electric valve wrench comprises two locking devices, and the two locking devices are symmetrically installed on the turntable about a certain axial symmetry line of the turntable.

6. The electric valve wrench according to claim 1, characterized in that: There is a through hole in the center of the circular turntable, which is used to provide a passage for the lead screw in the center of the valve with a larger valve opening.

7. The electric valve wrench according to claim 3, characterized in that: Anti-slip sleeves are installed around the outer sides of the locking pin and the movable pin.

8. The electric valve wrench according to claim 1, characterized in that: A driving gear is installed on the driving motor and meshes with teeth installed on the other side of the turntable locking device to drive the turntable to rotate.

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