Multifunctional valve wrench

Abstract

The utility model discloses a multifunctional valve wrench which comprises a square head, the upper end of the square head is fixedly connected with an inner chuck, the outer side of the inner chuck is provided with a rotating ring, the upper end of the rotating ring is provided with a plurality of outer clamping pieces, the rotating ring is provided with two openings, the outer side of the inner chuck is fixedly connected with two guide shafts, and the outer side of the inner chuck is fixedly connected with the guide shafts. The two guide shafts penetrate through the corresponding openings, three rectangular boxes are fixedly connected to the outer side of the rotating ring, a threaded rod is rotatably connected to the interior of each rectangular box, a moving block is in threaded connection to each threaded rod, and an L-shaped plate is fixedly connected to the upper end of each moving block. According to the valve wrench, the distance between the inner clamping disc and the outer clamping piece can be changed according to the model of a valve switch in actual requirements, meanwhile, the rotating ring can be rotated by pulling the plug pin, operation is convenient and simple, and the diversified and efficient operation requirements in actual engineering can be met.

Description

Technical Field

[0001] This utility model relates to the field of valve wrench technology, and in particular to a multifunctional valve wrench. Background Technology

[0002] In the construction and maintenance of urban infrastructure, the operation of underground pipeline valves is crucial. The valve wrench used to turn these valves is a key tool, and its performance directly affects operational efficiency and quality.

[0003] Currently available valve wrenches suffer from numerous problems. One issue is the non-adjustable spacing between the inner and outer clamping plates, making them unsuitable for different valve sizes and severely limiting their versatility. Furthermore, existing technologies maintain a fixed position for the outer clamping plates and inner clamping plates. When the valve's opening is misaligned with these positions, the clamping plates cannot be inserted into the valve's opening, resulting in poor applicability of existing valve wrenches.

[0004] Therefore, there is an urgent need to develop a new type of multifunctional valve wrench to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose a multi-functional valve wrench. This valve wrench can change the distance between the inner clamp and the outer clamp according to the actual needs of the valve switch model. At the same time, the rotating ring can be rotated by pulling the pin. It is convenient and simple to operate and can meet the diverse and efficient operation needs in actual engineering.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A multifunctional valve wrench includes a square head, an inner clamping plate fixedly connected to the upper end of the square head, a rotating ring provided on the outer side of the inner clamping plate, multiple outer clamping plates provided on the upper end of the rotating ring, the rotating ring having two openings, two guide shafts fixedly connected to the outer side of the inner clamping plate, the two guide shafts passing through corresponding openings, three rectangular boxes fixedly connected to the outer side of the rotating ring, a threaded rod rotatably connected in each rectangular box, a movable block threadedly connected to each threaded rod, an L-shaped plate fixedly connected to the upper end of each movable block, each L-shaped plate fixedly connected to a corresponding outer clamping plate, and a knob fixedly connected to one side of each threaded rod extending to the outside from the rotating ring.

[0008] Preferably, a servo motor is provided at the lower end of the square head, the output shaft of the servo motor is fixedly connected to the square head, and a short reaction arm is sleeved on the outer wall of the square head.

[0009] Preferably, a connecting frame is fixedly connected to the housing of the servo motor, a handle is fixedly connected to the right side of the connecting frame, a power supply is provided inside the handle, and a control switch is installed at the upper end of the handle.

[0010] Preferably, the outer wall of the inner clamping plate is provided with multiple insertion holes, the outer wall of the rotating ring is fixedly connected with two telescopic rods, the telescopic ends of the two telescopic rods are fixedly connected with a handle, the handle is fixedly connected with a pin, the outer wall of the rotating ring is provided with multiple positioning holes, the pin is slidably connected to the inner wall of the positioning hole, and the handle is elastically connected to the outer wall of the rotating ring by two springs.

[0011] Preferably, the upper end of the handle is fixedly connected to two buckles.

[0012] Preferably, the power supply, control switch, and servo motor are electrically connected via wires.

[0013] Preferably, each of the insertion holes and positioning holes has a threaded layer fixedly connected to its inner wall, a limit screw is threadedly connected to the positioning hole and insertion hole, a throttle is fixedly connected to the outer wall of the limit screw, and multiple outer clamps are fixedly connected to the rotating ring.

[0014] Compared with existing technologies, the advantages of this device are:

[0015] 1. Compared with existing technologies, this device incorporates a rectangular box, threaded rod, moving block, and L-shaped plate on the outside of the rotating ring. Rotating the knob drives the threaded rod to rotate, causing the moving block to move along the threaded rod, thereby adjusting the distance between the outer clamping plate and the inner clamping plate. This design effectively solves the problem of the non-adjustable distance between the inner and outer clamping plates in existing valve wrenches, enabling it to adapt to underground pipeline valves of different specifications and significantly improving the versatility and applicability of the valve wrench.

[0016] 2. Compared with existing technologies, this device adopts a locking structure consisting of a telescopic rod, a handle, a pin, a spring, a socket, and a positioning hole. Pulling the handle disengages the pin from the socket, unlocking the rotating ring from the inner clamp. Releasing the handle allows the pin to re-enter the socket under the action of the spring, completing the locking process. The operation is simple and quick, significantly reducing installation and disassembly time.

[0017] 3. Compared with the existing technology, by setting the limiting screw, the relative positions of multiple outer clamping plates and inner clamping plates can be adjusted during actual use. By rotating the limiting screw, the outer clamping plates and rotating ring are fixed together, ensuring the stability of the adjusted positions of the outer clamping plates and inner clamping plates. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a multifunctional valve wrench proposed in this utility model;

[0019] Figure 2 for Figure 1 A structural diagram from another perspective;

[0020] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0021] Figure 4 for Figure 2 Exploded view of the rotating ring, inner clamping plate, and limiting screw.

[0022] In the diagram: 1. Handle, 2. Servo motor, 3. Connecting bracket, 4. Square head, 5. Short reaction arm, 6. Inner clamp, 7. Rotating ring, 8. Opening, 9. Guide shaft, 10. Outer clamp, 11. Rectangular box, 12. Threaded rod, 13. Knob, 14. Moving block, 15. L-shaped plate, 16. Pull handle, 17. Telescopic rod, 18. Spring, 19. Pin, 20. Positioning hole, 21. Limit screw, 22. Throttle. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Example 1

[0025] Reference Figures 1-2 A multifunctional valve wrench includes a square head 4, an inner clamping plate 6 fixedly connected to the upper end of the square head 4, a rotating ring 7 on the outer side of the inner clamping plate 6, multiple outer clamping plates 10 on the upper end of the rotating ring 7, and two openings 8. Two guide shafts 9 are fixedly connected to the outer side of the inner clamping plate 6, so that the rotating ring 7 can be limited to the outer side of the inner clamping plate 6, but the inner clamping plate 6 and the rotating ring 7 can rotate relative to each other. The two guide shafts 9 pass through the corresponding openings 8. Three rectangular boxes 11 are fixedly connected to the outer side of the rotating ring 7. Each rectangular box 11 is rotatably connected to a threaded rod 12. Each threaded rod 12 is threadedly connected to a moving block 14. Each moving block 14 is fixedly connected to the upper end of an L-shaped plate 15. Each L-shaped plate 15 is fixedly connected to the corresponding outer clamping plate 10. Each threaded rod 12 extends to the outside from one side of the rotating ring 7 and is fixedly connected to a knob 13.

[0026] The square head 4 has a servo motor 2 at its lower end, and the output shaft of the servo motor 2 is fixedly connected to the square head 4. The outer wall of the square head 4 is fitted with a short reaction arm 5.

[0027] The servo motor 2 has a connecting bracket 3 fixedly connected to its housing. A handle 1 is fixedly connected to the right side of the connecting bracket 3. The handle 1 contains a power supply and a control switch is installed at the top of the handle 1. The power supply, control switch and servo motor 2 are electrically connected by wires.

[0028] The inner clamping plate 6 has multiple insertion holes on its outer wall. Two telescopic rods 17 are fixedly connected to the outer wall of the rotating ring 7. The telescopic ends of the two telescopic rods 17 are fixedly connected to a handle 16. A pin 19 is fixedly connected to the handle 16. The outer wall of the rotating ring 7 has multiple positioning holes 20. The pin 19 is slidably connected to the inner wall of the positioning hole 20. The handle 16 is elastically connected to the outer wall of the rotating ring 7 by two springs 18. Two buckles are fixedly connected to the upper end of the handle 16. The buckles make it convenient for people to pull the handle 16. After pulling the handle 16, the staff can directly rotate the rotating ring 7 through the handle 16.

[0029] The functional principle of this utility model can be explained through the following operation: When it is necessary to adapt to the valve switches of underground pipelines of different specifications, turn the knob 13. The knob 13 drives the threaded rod 12 to rotate, and the moving block 14 will move linearly along the threaded rod 12, thereby driving the outer clamping plate 10 to move, so as to adjust the distance between the outer clamping plate 10 and the inner clamping plate 6 to adapt to valves of different sizes.

[0030] When locking or unlocking the rotating ring 7 and the inner clamping plate 6, pull the handle 16. The handle 16 drives the pin 19 to move outward against the elastic force of the spring 18, causing the pin 19 to disengage from the positioning hole 20. At this time, the rotating ring 7 and the inner clamping plate 6 are unlocked, and their relative rotation can be adjusted. After the position is adjusted, release the handle 16. Under the elastic restoring force of the spring 18, the pin 19 inserts into the positioning hole 20, locking the rotating ring 7 and the inner clamping plate 6 to ensure structural stability during operation.

[0031] When using a valve wrench to turn the valve switch, press the control switch at the top of the handle 1. The servo motor 2 starts and drives the square head 4 to rotate. The square head 4 then drives the inner clamping plate 6, the rotating ring 7 and the outer clamping plate 10 to rotate synchronously, thereby realizing the operation of the underground pipeline valve.

[0032] It is worth mentioning that the short reaction arm 5 is fitted onto the outer wall of the square head 4. In actual operation, the short reaction arm 5 needs to be connected to the carbon fiber rod, and then the carbon fiber rod is fixed to the ground to avoid the valve wrench shifting due to the hand not holding it tightly when the servo motor 2 is running.

[0033] Example 2

[0034] Reference Figure 3-4 The difference between this embodiment and embodiment 1 is that each insertion hole and positioning hole 20 has a threaded layer fixedly connected to its inner wall, the positioning hole 20 and the insertion hole are connected to a limit screw 21 by a common thread, the outer wall of the limit screw 21 is fixedly connected to a handle 22, and multiple outer clamping plates 10 are fixedly connected to the rotating ring 7.

[0035] In this embodiment, during use, the operator can adjust the relative position of the outer clamp 10 and the inner frame plate 6 by rotating the rotating ring 7. After adjusting to the appropriate position, the operator can rotate the limit screw 21 by the throttle 22 to lock the rotating ring 7 and the inner frame plate 6. At this time, the servo motor 2 can be used to rotate the valve.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A multi-functional valve key comprising a square head (4) characterised in that: The upper end of the square head (4) is fixedly connected to an inner clamping plate (6). A rotating ring (7) is provided on the outer side of the inner clamping plate (6). Multiple outer clamping plates (10) are provided on the upper end of the rotating ring (7). The rotating ring (7) has two openings (8). Two guide shafts (9) are fixedly connected to the outer side of the inner clamping plate (6). The two guide shafts (9) pass through the corresponding openings (8). Three rectangular boxes (11) are fixedly connected to the outer side of the rotating ring (7). A threaded rod (12) is rotatably connected in each rectangular box (11). A moving block (14) is threadedly connected to each threaded rod (12). An L-shaped plate (15) is fixedly connected to the upper end of each moving block (14). Each L-shaped plate (15) is fixedly connected to the corresponding outer clamping plate (10). Each threaded rod (12) extends to the outside from one side of the rotating ring (7) and is fixedly connected to a knob (13).

2. The multi-functional valve key according to claim 1, wherein: The lower end of the square head (4) is provided with a servo motor (2), the output shaft end of the servo motor (2) is fixedly connected to the square head (4), and a short reaction arm (5) is sleeved on the outer wall of the square head (4).

3. The multi-functional valve key of claim 2, wherein: A connecting frame (3) is fixedly connected to the outer shell of the servo motor (2). A handle (1) is fixedly connected to the right side of the connecting frame (3). A power supply is provided inside the handle (1). A control switch is installed at the upper end of the handle (1).

4. The multi-functional valve key according to claim 1, wherein: The outer wall of the inner clamping plate (6) is provided with multiple insertion holes. The outer wall of the rotating ring (7) is fixedly connected with two telescopic rods (17). The telescopic ends of the two telescopic rods (17) are fixedly connected with a handle (16). A pin (19) is fixedly connected to the handle (16). The outer wall of the rotating ring (7) is provided with multiple positioning holes (20). The pin (19) is slidably connected to the inner wall of the positioning hole (20). The handle (16) and the outer wall of the rotating ring (7) are elastically connected by two springs (18).

5. The multi-functional valve key of claim 4, wherein: The upper end of the handle (16) is fixedly connected to two buckles.

6. The multi-functional valve key according to claim 3, wherein: The power supply, control switch and servo motor (2) are electrically connected by wires.

7. The multi-functional valve key of claim 4, wherein: Each of the insertion holes and positioning holes (20) has a threaded layer fixedly connected to its inner wall. The positioning holes (20) and insertion holes are connected to a limit screw (21) by a common thread. The outer wall of the limit screw (21) is fixedly connected to a throttle (22). Multiple outer clips (10) are fixedly connected to a rotating ring (7).

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