Monkey wrench capable of being operated in limited space
By designing an adjustable wrench including a grip handle, a wrench head, an adjustable plate lip and other components, the problem of inconvenient wrench operation in a confined space is solved, and efficient operation of tightening bolts with a single tool is achieved.
Patent Information
- Application Number
- CN202422756149.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2025-10-14
- Estimated Expiration
- 2034-11-12
AI Technical Summary
Existing wrenches are inconvenient to operate in confined spaces, making it difficult to effectively tighten bolts and requiring additional tools to secure them, making the operation cumbersome.
A movable wrench is designed, which includes a grip handle, a wrench head, an movable plate lip, a rotary pin, a movable shaft, a toggle slot, a spiral rotating column, a tension spring, a bite handle and a fastening clamp. Through the coordinated use of these components, fastening operations in confined spaces can be achieved.
The invention realizes that bolts can be tightened with a single tool in a confined space, which saves time and effort, avoids the need to carry multiple tools, improves work efficiency, and solves the problem of inconvenient operation.
Smart Images

Figure CN223431552U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of adjustable wrenches, in particular to an adjustable wrench which can be operated in a confined space. Background Art
[0002] Photovoltaic (PV) panels, as core components of solar power generation systems, require secure fastening tools to ensure their safety and stability. Tightening tools for PV panel clamp bolts typically include wrenches, torque wrenches, and power wrenches. These tools play a crucial role in PV panel installation. Wrenches are one of the most commonly used fastening tools. Manually tightening bolts ensures a tight connection between the PV panel and the mounting bracket. The size and shape of the wrench should be selected based on the size and position of the bolts to ensure they are properly fitted and tightened.
[0003] A common wrench is a tool used to tighten and loosen nuts and bolts of various sizes. It is widely used in areas such as assembling machine tools and spare parts, as well as in transportation and agricultural machinery maintenance. When tightening bolts on photovoltaic mounts, an additional tool is required to secure the nuts before attaching the wrench to the bolts.
[0004] Due to limited operating space, bolt fastening often requires additional tools, which can be inconvenient. Consequently, conventional adjustable wrenches are cumbersome to use and difficult to use in tight spaces. Therefore, to address this issue, we developed an adjustable wrench that can be used in confined spaces. Utility Model Content
[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to provide an adjustable wrench that can be operated in a confined space.
[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0007] A movable wrench that can be operated in a confined space includes a gripping handle, one side of the gripping handle is connected to a second wrench head, a swivel pin is installed through the top of one side of the second wrench head, an outer movable sleeve of the swivel pin is provided with a first wrench head, and a movable plate lip is movably installed at the bottom of one side of the first wrench head.
[0008] Preferably, a toggle groove is provided on the wrench head, a spiral rotating column is movably installed inside the toggle groove and is used in conjunction with the movable plate lip, and a torsion spring is sleeved on the rotary pin.
[0009] Preferably, the wrench head two is provided with a moving slot, a moving shaft is arranged in the moving slot, and a fastening clamp is arranged on the moving shaft.
[0010] Preferably, the fastening clamp is provided with a pulling spring, and the pulling spring is connected to the fastening clamp.
[0011] Preferably, the fastening clamp is provided with a clamping handle, and the clamping handle is arranged at the bottom of the pulling spring.
[0012] Compared with the prior art, the wrench has the following beneficial effects:
[0013] The wrench head one, the wrench head two, the movable plate lip, the holding handle, the rotating pin, the moving shaft, the moving slot, the spiral rotating column, the pulling spring, the clamping handle and the fastening clamp are used in cooperation, the fastening clamp is sleeved with the nut, the clamping handle at the rear side is pressed, the clamping plate is engaged with the fastened nut, the wrench head one and the movable plate lip are sleeved with the bolt, the clockwise fastening force is applied to the holding handle, the wrench is rotated clockwise, and the threaded fastener is tightened. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 The figure is a structural schematic view of the wrench.
[0015] In the figure, 1 is the wrench head one, 2 is the wrench head two, 3 is the movable plate lip, 4 is the holding handle, 5 is the rotating pin, 6 is the moving shaft, 7 is the moving slot, 8 is the spiral rotating column, 9 is the pulling spring, 10 is the clamping handle, and 11 is the fastening clamp. DETAILED DESCRIPTION
[0016] The technical solutions in the embodiments of the wrench will be clearly and completely described below with reference to the drawings in the embodiments of the wrench.
[0017] Please refer to Figure 1 The movable wrench can be operated in a limited space, and the wrench comprises a holding handle 4, the holding handle 4 is connected with a wrench head two 2, a rotating pin 5 is arranged at the top of one side of the wrench head two 2, a wrench head one 1 is movably sleeved with the rotating pin 5, and a movable plate lip 3 is movably arranged at the bottom of one side of the wrench head one 1.
[0018] As a technical optimization scheme of the utility model, the wrench head one 1 is provided with a poking groove 7, a spiral rotating column 8 used in cooperation with the movable plate lip 3 is movably installed inside the poking groove 7, a torsion spring is sleeved on the rotary pin 5, and the torsion spring is a spiral spring generating torsional force and used for bearing torsional deformation.
[0019] As a technical optimization scheme of the utility model, the wrench head two 2 is provided with a moving groove, a moving shaft 6 is provided inside the moving groove, the moving shaft 6 is sleeved with a fastening clamp 11 outside, and the holding handle 4 is provided with a hanging hole; through the hanging hole, the holding handle 4 is conveniently hung and placed.
[0020] As a technical optimization scheme of the utility model, the fastening clamp 11 is connected with a tension spring 9 at the top of one side, and the tension spring 9 is connected with the holding handle 4 at the side away from the fastening clamp 11.
[0021] As a technical optimization scheme of the utility model, the fastening clamp 11 is provided with a clamping handle 10 at one side, the clamping handle 10 is located at the bottom of the tension spring 9, and the fastening clamp 11 is provided with a clamping plate.
[0022] In use, the fastening clamp 11 is sleeved on the nut, the clamping handle 10 at the rear side is pressed, the clamping plate and the fastened nut are mutually engaged and fixed, the wrench head one 1 and the movable plate lip 3 are sleeved into the bolt, and when the fastening force in the clockwise direction is applied to the holding handle 4 for screwing, the wrench as a whole rotates in the clockwise direction, and the threaded fastener is tightened. In this process, the movable plate lip 3 does not move relative to other parts of the wrench, and the lower nut also does not move relative to the force, so the wrench head two 2 is hindered, and the opening is not enlarged, that is, the movable wrench is used. Further, the optimization design is made aiming at the problem that the operator needs to repeatedly lift and place the wrench and needs to additionally increase the fixing tool when screwing the threaded fastener. In order to improve the work efficiency, the wrench only needs one tool to realize the screwing of the bolt, and the lifting is not needed, time and labor are saved, meanwhile, the reform and innovation of the production tool also promote the development and progress of the society. The application can realize the functions of fixing and fastening, avoids the situation that the worker carries multiple wrenches and other tools, solves the problems of inconvenience in use and difficulty in operation in a limited space, solves the problem that the wrench can only screw different size threaded fasteners, the application can continuously screw, and the nut below the photovoltaic support can be fixed, so that the bolt and the nut are not subjected to the same direction pre-tightening force in the fastening process.
[0023] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.
Claims
1. An adjustable wrench operable in a confined space, comprising a grip handle (4), characterized in that: One side of the gripping handle (4) is connected to a wrench head 2 (2), a swivel pin (5) is installed through the top of one side of the wrench head 2 (2), an outer movable sleeve of the swivel pin (5) is provided with a wrench head 1 (1), and a movable plate lip (3) is movably installed at the bottom of one side of the wrench head 1 (1).
2. The adjustable wrench operable in a confined space according to claim 1, characterized in that: The wrench head (1) is provided with a toggle groove (7), the interior of which is movably provided with a spiral rotating column (8) used in conjunction with the movable plate lip (3), and a torsion spring is sleeved on the rotary pin (5).
3. The adjustable wrench operable in a confined space according to claim 1, characterized in that: A movable groove is provided through the second wrench head (2), a movable shaft (6) is provided inside the movable groove, a fastening clamp (11) is sleeved on the outside of the movable shaft (6), and a hanging hole is provided through the gripping handle (4).
4. The adjustable wrench operable in a confined space according to claim 3, characterized in that: A tension spring (9) is connected to the top of one side of the fastening clamp (11), and a side of the tension spring (9) away from the fastening clamp (11) is connected to the gripping handle (4).
5. The adjustable wrench operable in a confined space according to claim 4, characterized in that: A bite handle (10) is installed on one side of the fastening clamp (11), and the bite handle (10) is located at the bottom of the tension spring (9). A clamping plate is installed on the fastening clamp (11).