Tool for opening and closing high-position valve

Abstract

The utility model relates to a tool for opening and closing a high-position valve. Comprising an adjustable telescopic supporting arm, a rotating driving assembly and a driving motor outputting power to the rotating driving assembly are installed on the side portion of the upper end of the adjustable telescopic supporting arm, a holding handle with operation keys is installed at the lower end of the adjustable telescopic supporting arm, and a circuit board and a storage battery are installed in the control box. The driving motor and the operation keys are connected with the circuit board through cables; the rotation driving assembly comprises a back shell and a cover plate which is installed on the front portion of the back shell and provided with a window in the middle, a worm gear and worm assembly composed of a worm gear and a worm is installed in the back shell, and a rotating shaft of the worm is in butt joint with an output shaft of the driving motor. And two opposite holding and clamping blocks are mounted on the worm gear and penetrate out of a window in the cover plate. According to the utility model, an operator can open and close the valve at a high position without equal height, so that the convenience and safety of the opening and closing operation of the valve are improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of valve operating tools, and in particular relates to a tool for opening and closing valves at heights. Background Technology

[0002] In water treatment and environmental protection industries, as well as water conservancy departments, various types of valves are used in production operations. Valves are control components in fluid transport systems, with functions such as shut-off, regulation, flow diversion, backflow prevention, pressure stabilization, flow splitting, or overflow pressure relief. In some valve application scenarios, pipelines of certain process equipment are located at high positions, and correspondingly, the valve positions are also above the height that a person can reach. When it is necessary to open or close valves at high locations, workers need to use tools such as ladders to repeatedly go up and down to operate them, which causes great inconvenience to operators and increases safety risks.

[0003] In summary, it is necessary to develop and design a tool that can operate the valve at a high position without relying on a ladder, in order to solve the aforementioned technical problems. Utility Model Content

[0004] The purpose of this invention is to provide a tool for opening and closing valves at high locations, allowing operators to open and close valves at high positions without having to wait at a certain height, thereby improving the convenience and safety of valve operation.

[0005] The technical solution adopted by this utility model is as follows: a tool for opening and closing valves at heights, including an adjustable telescopic arm, a rotation drive assembly and a drive motor that outputs power to the rotation drive assembly are installed on the upper side of the adjustable telescopic arm, a grip handle with operation buttons is installed on the lower end of the adjustable telescopic arm, and a control box is also included. A circuit board and a battery are installed in the control box, and the drive motor and operation buttons are connected to the circuit board through cables; the rotation drive assembly includes a back shell and a cover plate with a window in the middle installed on the front of the back shell, and a worm gear assembly consisting of a worm wheel and a worm is installed inside the back shell. The worm's shaft is connected to the output shaft of the drive motor, and two opposing clamping blocks are installed on the worm wheel, with the two clamping blocks protruding through the window on the cover plate.

[0006] Preferably, a worm gear groove and a worm groove are provided inside the back shell, and bearing grooves are provided above and below the worm groove. The worm gear is located in the worm gear groove, the worm is located in the worm groove, and the bearing on the worm shaft is located in the bearing groove.

[0007] Preferably, a central shaft is provided in the middle of the worm gear groove of the back shell, and a shaft hole is provided in the center of the worm gear with the central shaft located inside the shaft hole.

[0008] Preferably, the worm gear has a threaded hole on its disc surface and an axially penetrating mounting hole in the middle of the clamping block. The clamping block is fixedly connected to the worm gear with screws.

[0009] Preferably, multiple protrusions are provided at the base of the back shell and the cover plate, and the back shell and the cover plate are fixedly connected by multiple assembly bolts located at the edge. Each assembly bolt located at the base simultaneously fixes each set of protrusions to the end of the adjustable telescopic support arm.

[0010] Preferably, the adjustable telescopic outrigger includes a hand-held tube and a telescopic rod that is plugged into the hand-held tube. A telescopic locking member for locking the telescopic rod is provided at the upper end of the hand-held tube, and a grip handle is provided at the lower end of the hand-held tube. A handle rubber sleeve is also provided at the lower part of the hand-held tube.

[0011] Preferably, the control box is installed and fixed at the base of the handheld tube, and a charging interface is provided on the control box body.

[0012] The advantages and positive effects of this utility model are:

[0013] This invention provides a tool for opening and closing valves at heights, specifically an electric tool designed for operating valves at elevated positions. By incorporating an adjustable telescopic arm, the tool's length can be controlled, making it suitable for valves at different heights. During operation, the valve stem is inserted between two clamping blocks. The tool uses a rotating drive assembly and its motor located at the top of the adjustable telescopic arm to rotate the valve stem, thus controlling the valve's opening and closing. The electric drive provides greater torque, reducing operational effort and improving ease of operation. Furthermore, when using this tool to operate valves at heights, the operator does not need to climb, thus improving safety and preventing accidents such as falls compared to manual operation at heights. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 yes Figure 1 A front perspective view of the central rotation drive assembly;

[0016] Figure 3 yes Figure 2 A schematic diagram of the internal structure of the rotary drive assembly.

[0017] In the picture:

[0018] 1. Rotary drive assembly; 1-1. Cover plate; 1-2. Bearing; 1-3. Worm gear; 1-4. Worm gear groove; 1-5. Bearing groove; 1-6. Clamping block; 1-7. Worm wheel; 1-8. Assembly bolt; 1-9. Central shaft; 1-10. Worm wheel groove; 1-11. Back cover; 2. Drive motor; 3. Cable; 4. Telescopic rod; 5. Telescopic locking component; 6. Handheld tube; 7. Handle rubber sleeve; 8. Control box; 9. Circuit board; 10. Battery; 11. Operation buttons; 12. Grip handle. Detailed Implementation

[0019] To further understand the invention content, features and effects of this utility model, the following embodiments are provided in detail.

[0020] Please see Figure 1 This utility model discloses a tool for opening and closing valves at heights, comprising an adjustable telescopic arm, a rotation drive assembly 1 and a drive motor 2 that outputs power to the rotation drive assembly 1 mounted on the upper side of the adjustable telescopic arm, and a grip handle 12 with operation buttons 11 mounted on the lower end of the adjustable telescopic arm. It also includes a control box 8, which houses a circuit board 9 and a battery 10. The drive motor 2 and the operation buttons 11 are connected to the circuit board 9 via cables 3.

[0021] Its working principle is as follows: The valve stem, located at a high position, is combined with the rotary drive assembly 1. Commands are sent to the drive motor 2 via the operation button 11 and circuit board 9, controlling the drive motor 2 to rotate forward or backward. Correspondingly, the rotary drive assembly 1 drives the valve stem to rotate counterclockwise or clockwise, thus achieving the opening and closing operation of the valve. By mounting the rotary drive assembly 1 and its drive motor 2 on the upper end of the adjustable telescopic arm, the tool can be adapted to operate valves at different heights by adjusting the length of the adjustable telescopic arm.

[0022] In this embodiment, the adjustable telescopic outrigger includes a handheld tube 6 and a telescopic rod 4 connected to the handheld tube 6. A telescopic locking member 5 for locking the telescopic rod 4 is provided at the upper end of the handheld tube 6. A grip handle 12 is provided at the lower end of the handheld tube 6, and a handle sleeve 7 is also provided at the lower part of the handheld tube 6. The telescopic locking member 5 includes an outer sleeve installed at the end of the handheld tube 6 and a locking tongue hinged to the side wall of the outer sleeve. A rubber locking block for pressing the telescopic rod 4 is provided on the locking tongue. When the locking tongue is pushed outward, the rubber locking block moves away from the telescopic rod 4, and the telescopic rod 4 can move telescopically in the axial direction. After moving into position, pressing the locking tongue inward causes the rubber locking block to press against the telescopic rod 4. Then, relying on the squeezing and friction action applied by the rubber locking block, the telescopic rod 4 is fixed in the current position, and the adjustable telescopic outrigger is set to the current length.

[0023] During operation, the operator holds the handle 12 with one hand and presses the operation button 11, while holding the handle sleeve 7 with the other hand. The operation button 11 has three positions: zero position, forward position, and reverse position. The handheld tube 6 and the telescopic rod 4 can be made of aluminum alloy to improve the tool's lightweight design.

[0024] In this embodiment, the control box 8 is bolted to the base of the handheld tube 6, and a charging interface is provided on the box body of the control box 8. The battery 10 is connected to the charging interface via an external power cable to replenish power. The circuit board 9 includes a controller module, a power processing module, and a drive module. The operation button 11 is connected to the controller module, the battery 10 and the charging interface are connected to the power processing module, and the drive motor 2 is connected to the drive module.

[0025] Please see Figure 2 and Figure 3 It can be seen that:

[0026] The rotary drive assembly 1 includes a back shell 1-11 and a cover plate 1-1 with a window in the middle, installed at the front of the back shell 1-11. Inside the back shell 1-11 is a worm gear assembly consisting of a worm wheel 1-7 and a worm 1-3. The shaft of the worm 1-3 is connected to the output shaft of the drive motor 2. Two opposing clamping blocks 1-6 are mounted on the worm wheel 1-7, and the two clamping blocks 1-6 protrude through the window on the cover plate 1-1. In use, the valve stem of the high-position valve is inserted between the two clamping blocks 1-6. Then, the drive motor 2 drives the worm gear assembly to rotate, causing the worm wheel 1-7 to rotate the two clamping blocks 1-6 clockwise or counterclockwise, thus rotating the valve stem and completing the valve opening and closing operation. The back shell 1-11, cover plate 1-1, and worm gear assembly can be made of aluminum alloy, improving the tool's lightweight design.

[0027] In this embodiment, a worm gear groove 1-10 and a worm groove 1-4 are provided inside the back shell 1-11. Two bearing grooves 1-5 are provided above and below the worm groove 1-4. The worm gear 1-7 is located in the worm gear groove 1-10, and the worm 1-3 is located in the worm groove 1-4. Two bearings 1-2 on the shaft of the worm 1-3 are located in the two bearing grooves 1-5. The lower end of the shaft of the worm 1-3 extends out and is connected to the output shaft of the drive motor 2.

[0028] In this embodiment, a central shaft 1-9 is provided in the middle of the worm gear groove 1-10 of the back shell 1-11, and a shaft hole is provided in the center of the worm gear 1-7, with the central shaft 1-9 located inside the shaft hole. In this way, the worm gear 1-7 can rotate stably in the forward or reverse direction with the central shaft 1-9 as the center. On the other hand, the radial dimension of the window on the cover plate 1-1 is smaller than the radial dimension of the worm gear 1-7. Therefore, after the cover plate 1-1 is installed, the worm gear 1-7 is restricted in the worm gear groove 1-10 and can only rotate but cannot come out.

[0029] In this embodiment, a threaded hole is provided on the disc surface of the worm gear 1-7, and an axially penetrating mounting hole is provided in the middle of the clamping block 1-6. The clamping block 1-6 is fixedly connected to the worm gear 1-6 with screws, so that the clamping block 1-6 can be selected and replaced. By selecting and replacing the clamping block 1-6, the size of the valve stem can be better adapted.

[0030] In this embodiment, multiple protrusions are provided at the base of the back shell 1-11 and the cover plate 1-1. The back shell 1-11 and the cover plate 1-1 are fixedly connected by multiple assembly bolts 1-8 located at the edge. Each assembly bolt 1-8 located at the base simultaneously fixes each set of protrusions to the end of the adjustable telescopic support arm. That is, each assembly bolt 1-8 located at the base simultaneously fixes each set of protrusions to the upper end of the telescopic rod 4.

[0031] Operation method:

[0032] The operator on the ground adjusts the extension of the adjustable telescopic arm to a suitable length based on the approximate height of the high-position valve. Then, the operator holds the handle 12 with one hand and presses the operation button 11, while holding the handle sleeve 7 with the other hand, raising the adjustable telescopic arm until the rotation drive assembly 1 moves to the side of the valve. The rotation drive assembly 1 is then moved further towards the valve so that the valve stem is embedded between the two clamping blocks 1-6. After stabilization, the operation button 11 is triggered, and the rotation drive assembly 1 and its drive motor 2 drive the two clamping blocks 1-6 to rotate the valve stem clockwise or counterclockwise, thus opening and closing the valve. After the operation is completed, the rotation drive assembly 1 is moved away from the valve until the clamping blocks 1-6 separate from the valve stem.

Claims

1. A tool for opening and closing valves at heights, characterized in that: The system includes an adjustable telescopic outrigger, a rotary drive assembly (1) and a drive motor (2) that outputs power to the rotary drive assembly (1) are mounted on the upper side of the adjustable telescopic outrigger, and a grip handle (12) with operation buttons (11) is mounted on the lower end of the adjustable telescopic outrigger. It also includes a control box (8), in which a circuit board (9) and a battery (10) are installed. The drive motor (2) and operation buttons (11) are connected to the circuit board (9) via cables (3). The moving assembly (1) includes a back shell (1-11) and a cover plate (1-1) with a window in the middle installed at the front of the back shell (1-11). Inside the back shell (1-11) is a worm gear assembly consisting of a worm wheel (1-7) and a worm (1-3). The shaft of the worm (1-3) is connected to the output shaft of the drive motor (2). Two opposing clamping blocks (1-6) are installed on the worm wheel (1-7) and the two clamping blocks (1-6) protrude through the window on the cover plate (1-1).

2. The tool for opening and closing valves at heights as described in claim 1, characterized in that: The back shell (1-11) has a worm gear groove (1-10) and a worm groove (1-4) inside. Bearing grooves (1-5) are provided above and below the worm groove (1-4). The worm wheel (1-7) is located in the worm gear groove (1-10), the worm (1-3) is located in the worm groove (1-4), and the bearing (1-2) on the shaft of the worm (1-3) is located in the bearing groove (1-5).

3. The tool for opening and closing valves at heights as described in claim 2, characterized in that: A central shaft (1-9) is provided in the middle of the worm gear groove (1-10) of the back shell (1-11), and a shaft hole is provided in the center of the worm gear (1-7), with the central shaft (1-9) located inside the shaft hole.

4. The tool for opening and closing valves at heights as described in claim 3, characterized in that: The worm gear (1-7) has a threaded hole on its disc surface and an axially penetrating mounting hole in the middle of the clamping block (1-6). The clamping block (1-6) is fixedly connected to the worm gear (1-7) with screws.

5. The tool for opening and closing valves at heights as described in claim 4, characterized in that: Multiple protrusions are provided at the base of the back shell (1-11) and the cover plate (1-1). The back shell (1-11) and the cover plate (1-1) are fixedly connected by multiple assembly bolts (1-8) located at the edge. The assembly bolts (1-8) located at the base simultaneously fix each set of protrusions to the end of the adjustable telescopic support arm.

6. The tool for opening and closing valves at heights as described in claim 5, characterized in that: The adjustable telescopic outrigger includes a hand-held tube (6) and a telescopic rod (4) that is plugged into the hand-held tube (6). A telescopic locking member (5) for locking the telescopic rod (4) is provided at the upper end of the hand-held tube (6). A handle (12) is provided at the lower end of the hand-held tube (6). A handle rubber sleeve (7) is also provided at the lower part of the hand-held tube (6).

7. The tool for opening and closing valves at heights as described in claim 6, characterized in that: The control box (8) is installed and fixed at the base of the handheld tube (6), and a charging interface is provided on the box body of the control box (8).

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