U-shaped dismounting wrench for horn mouth in narrow space

Abstract

The utility model discloses a kind of horn mouth U-shaped dismounting wrench in narrow space, including handle, adjusting rod, fixed bolt, front pressing plate and rear pressing plate;Handle is columnar, its axial center is provided with mounting hole, adjusting rod is inserted in handle interior from one end of mounting hole;Front pressing plate is vertically fixedly connected to the front end bottom of adjusting rod, rear pressing plate is vertically fixedly connected to the front end bottom of handle;The radial top of one end of handle close to adjusting rod is provided with fixed hole, fixed hole is communicated with mounting hole, the adjusting bolt is inserted in fixed hole;The top of adjusting rod is provided with multiple adjusting holes matched with fixed bolt along its axial direction, and fixed bolt is used to be inserted into mounting hole after adjusting rod, and is tightened to adjusting hole to adjust the axial location of adjusting rod.The device can effectively clamp into horn mouth in narrow space, improve dismounting efficiency, and the spacing of clamping plate is adjustable, suitable for dismounting horn mouth of different sizes.

Description

Technical Field

[0001] This utility model relates to the technical field of maintenance tools for mining machinery and equipment, and in particular to a U-shaped disassembly wrench with a flared nozzle for use in confined spaces. Background Technology

[0002] In explosion-proof electrical equipment such as junction boxes and controllers in mines and factories, the flared nozzle, also known as a cable entry device, is a crucial component. Its function is to clamp and secure the cable entering the equipment, maintaining the equipment's explosion-proof performance and protection level. The flared nozzle typically has an external hexagonal nut-like structure, facilitating tightening or loosening with a wrench for cable installation and replacement.

[0003] In actual equipment, multiple horn nozzles are often installed side by side, resulting in very narrow spacing between adjacent nozzles. Currently, maintenance personnel typically use a 15-inch adjustable wrench for disassembly. However, the head of a 15-inch adjustable wrench is too large to effectively engage the nozzles in the narrow space, leading to reduced disassembly efficiency, inconvenience for equipment maintenance, and a high risk of injury to the operator's hands. Utility Model Content

[0004] Therefore, it is necessary to provide a U-shaped disassembly wrench for flared mouths in confined spaces to address the aforementioned technical problems. This wrench can effectively engage flared mouths in narrow spaces, improving disassembly efficiency. Furthermore, the clamping plate spacing is adjustable, allowing for disassembly using flared mouths of different sizes.

[0005] This utility model provides a U-shaped disassembly wrench for use in confined spaces, including a handle, an adjusting rod, a fixing bolt, a front pressure plate, and a rear pressure plate; The handle is cylindrical, with a mounting hole running through its axis. The adjusting rod is inserted into the handle from one end of the mounting hole. The front pressure plate is vertically fixed to the bottom of the front end of the adjusting rod, and the rear pressure plate is vertically fixed to the bottom of the front end of the handle; A fixing hole is provided at the radial top of one end of the handle near the adjusting rod. The fixing hole communicates with the mounting hole, and the adjusting bolt is inserted into the fixing hole. The top of the adjusting rod has multiple adjusting holes along its axial direction that are compatible with the fixing bolts. The fixing bolts are used to tighten the adjusting rod into the adjusting holes after it is inserted into the mounting holes to limit the axial movement of the adjusting rod. By controlling the fixing bolts to tighten into different adjusting holes, the distance between the front pressure plate and the rear pressure plate can be controlled to enable the disassembly of different sized bell mouths.

[0006] In one embodiment, the maximum width of the front and rear pressure plates is smaller than the diameter of the adjusting rod. In one embodiment, anti-slip serrations are provided on the side of the front pressure plate facing the rear pressure plate and the side of the rear pressure plate facing the front pressure plate.

[0007] In one embodiment, the thickness of both the front and rear pressure plates is less than 0.5 cm.

[0008] In one embodiment, a plurality of adjustment holes adapted to the fixing bolts are arranged at equal or unequal intervals.

[0009] The beneficial effects of this utility model are: (1) The U-shaped disassembly wrench for horn mouth in a narrow space of this utility model uses front and rear clamps and an adjusting rod to form a U-shaped opening to clamp the horn mouth. The front and rear clamps are the contact components with the horn mouth. They are narrower and longer than the head of the movable wrench, which can effectively fit into the horn mouth in a narrow space and improve disassembly efficiency.

[0010] (2) By adjusting the rod and fixing bolt, the distance between the front and rear pressure plates can be adjusted so that it can firmly clamp the horn nozzles of different sizes, realizing the multi-purpose use of one tool and reducing the number of tools required and replacement time. Attached Figure Description

[0011] Figure 1 A schematic diagram of the structure of the U-shaped disassembly wrench with a flared nozzle in a confined space provided in this embodiment of the utility model; Figure 2 for Figure 1 An explosion diagram.

[0012] Explanation of reference numerals in the attached drawings: 100, handle; 110, mounting hole; 120, fixing hole; 200, adjusting rod; 210, adjusting hole; 300, fixing bolt; 400, front pressure plate; 500, rear pressure plate. Detailed Implementation

[0013] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0014] It should be noted that in the description of this utility model, "upper," "lower," "top," "bottom," and orientation or positional relationship are based on the appendix. Figure 1 The orientations or positional relationships shown are for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0015] In one embodiment, such as Figure 1 and Figure 2 As shown, the U-shaped disassembly wrench for confined spaces in this embodiment includes a handle 100, an adjusting rod 200, a fixing bolt 300, a front pressure plate 400, and a rear pressure plate 500.

[0016] The handle 100 is cylindrical, with a mounting hole 110 extending through its axis. The adjusting rod 200 is inserted into the handle 100 from one end of the mounting hole 110. As the main force-bearing component, the handle 100 can have a layer of elastic rubber adhered to its surface to improve operator comfort.

[0017] The front pressure plate 400 is vertically fixed to the bottom front end of the adjusting rod 200, and the rear pressure plate 500 is vertically fixed to the bottom front end of the handle 100. The front pressure plate 400 is vertically fixed to the bottom front end of the adjusting rod 200 by welding or integral molding. Similarly, the rear pressure plate 500 is vertically fixed to the bottom front end of the handle 100 by welding or integral molding. The front pressure plate 400 and the rear pressure plate 500 are parallel to each other, forming a U-shaped clamping structure.

[0018] Anti-slip teeth are provided on the side of the front pressure plate 400 facing the rear pressure plate 500 and the side of the rear pressure plate 500 facing the front pressure plate 400, which ensures the stability of clamping and effectively avoids slippage during operation.

[0019] A fixing hole 120 is provided at the radial top of one end of the handle 100 near the adjusting rod 200. The fixing hole 120 communicates with the mounting hole 110, and the adjusting bolt is inserted into the fixing hole 120.

[0020] The top of the adjusting rod 200 is provided with multiple adjusting holes 210 that are adapted to the fixing bolts 300 along its axial direction. The fixing bolts 300 are used to tighten the adjusting rod 200 into the adjusting holes 210 after the adjusting rod 200 is inserted into the mounting hole 110 to limit the axial movement of the adjusting rod 200. By controlling the fixing bolts 300 to tighten into different adjusting holes 210, the distance between the front pressure plate 400 and the rear pressure plate 500 can be controlled to achieve the disassembly of different sized horn nozzles.

[0021] Specifically, multiple adjustment holes 210 adapted to the fixing bolt 300 are set at equal or unequal intervals, and the depth of the adjustment hole 210 is less than the axial radius of the adjustment rod 200.

[0022] In this embodiment, the maximum width of the front pressure plate 400 and the rear pressure plate 500 is less than the diameter of the adjusting rod 200. The thickness of both the front pressure plate 400 and the rear pressure plate 500 is less than 0.5 cm. As contact components with the flared mouth, the front and rear clamps are narrower and longer than the head of the adjustable wrench, which can effectively engage the flared mouth in narrow spaces and improve disassembly efficiency.

[0023] The working principle of the U-shaped flared wrench in this embodiment for use in confined spaces is as follows: In use, first adjust the distance between the front pressure plate 400 and the rear pressure plate 500 according to the size of the horn nozzle to be disassembled. The operator pulls outward or pushes inward the adjusting rod 200 so that the distance between the front pressure plate 400 and the rear pressure plate 500 is slightly greater than the distance between opposite sides of the horn nozzle. Then, screw the fixing bolt 300 into the currently aligned adjusting hole 210 to lock the relative position of the adjusting rod 200 and the handle 100. Next, insert the front pressure plate 400 and the rear pressure plate 500 into the outer hexagon of the horn nozzle from the side. At this time, because the pressure plate is extremely thin (less than 0.5 cm) and narrow (less than the diameter of the adjusting rod 200), it can easily enter the narrow gap between adjacent horn nozzles. Turn the handle 100, and the torque is transmitted to the front pressure plate 400 through the rear pressure plate 500, the fixing bolt 300, and the adjusting rod 200. The anti-slip teeth on the two pressure plates will tightly grip the edge of the horn nozzle, thereby driving it to rotate and completing the disassembly or tightening operation.

[0024] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A U-shaped disassembly wrench with a flared nozzle for use in confined spaces, characterized in that, Includes a handle (100), an adjusting rod (200), a fixing bolt (300), a front pressure plate (400), and a rear pressure plate (500); The handle (100) is cylindrical, with a mounting hole (110) through its axis. The adjusting rod (200) is inserted into the handle (100) from one end of the mounting hole (110). The front pressure plate (400) is vertically fixed to the bottom front end of the adjusting rod (200), and the rear pressure plate (500) is vertically fixed to the bottom front end of the handle (100). A fixing hole (120) is provided at the radial top of one end of the handle (100) near the adjusting rod (200). The fixing hole (120) communicates with the mounting hole (110), and the adjusting bolt is inserted into the fixing hole (120). The top of the adjusting rod (200) is provided with a plurality of adjusting holes (210) that are adapted to the fixing bolts (300). The fixing bolts (300) are used to tighten the adjusting rod (200) into the adjusting holes (210) after the adjusting rod (200) is inserted into the mounting hole (110) to limit the adjusting rod (200) axially. By controlling the fixing bolts (300) to tighten into different adjusting holes (210), the distance between the front pressure plate (400) and the rear pressure plate (500) can be controlled to realize the disassembly of different sized horn nozzles.

2. The U-shaped disassembly wrench with a flared nozzle for use in confined spaces according to claim 1, characterized in that, The maximum width of the front pressure plate (400) and the rear pressure plate (500) is less than the diameter of the adjusting rod (200).

3. The U-shaped disassembly wrench with a flared nozzle for use in confined spaces according to claim 2, characterized in that, The front pressure plate (400) facing the rear pressure plate (500) and the rear pressure plate (500) facing the front pressure plate (400) are both provided with anti-slip serrations.

4. The U-shaped disassembly wrench with a flared nozzle for use in confined spaces according to claim 3, characterized in that, The front pressure plate (400) and the rear pressure plate (500) are the same size, with a thickness of less than 0.5cm and a length of more than 5cm.

5. The U-shaped disassembly wrench with a flared nozzle for use in confined spaces according to claim 3, characterized in that, Multiple adjustment holes (210) adapted to the fixing bolts (300) are set at equal or unequal intervals.

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