Wrench with multi-angle rotating head

Abstract

The utility model discloses a wrench with a multi-angle rotating head, and relates to the technical field of hardware. The wrench comprises a wrench body, a multi-angle rotating head and a locking mechanism. A handle is arranged at one end of the wrench body, the other end of the wrench body is connected with the multi-angle rotating head through a spherical joint, and the rotating head is allowed to be freely adjusted among multiple angles. The locking mechanism comprises a convex limiting disc and a concave limiting disc, a protrusion is arranged on the convex limiting disc, a corresponding groove is formed in the concave limiting disc, by loosening nuts at the two ends of the screw rod, a user can rotate the wrench head to select the needed angle, the limiting discs are tightly meshed by screwing the nuts, and it is ensured that the angle is stable in the using process. In addition, the wrench is further provided with an adjustable extension handle, the length of the handle is increased through clamping operation, larger lever force is provided, and therefore a high-strength bolt can be fastened or loosened conveniently. According to the design, the wrench is remarkably improved in the aspects of operation flexibility, environment adaptation and torque application, and the operation efficiency and the user experience are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hardware, and specifically relates to a wrench with a multi-angle rotating head. Background Art

[0002] When an ordinary wrench is used in a narrow space or a complex structure, the operating space is very limited, and it is impossible to flexibly adjust the angle to tighten or loosen bolts. In a narrow or hard-to-reach space, it is impossible to effectively apply force, resulting in difficult operation or inability to complete. A wrench with a fixed angle can only be used at a specific angle and cannot be adjusted according to the working requirements, which limits the operating flexibility. During the operation process, users need to constantly adjust their postures, increasing the operation time and difficulty, especially in an environment with limited angles. A wrench with a fixed handle length is difficult to apply sufficient torque in some cases, especially for tightening or loosening operations that require a large torque. Users need to use greater force to operate, which is easy to fatigue, and at the same time, in some cases, it cannot provide sufficient torque to complete the operation. The fixed-length handle lacks flexibility during use and cannot adjust the handle length according to the working environment. In a narrow space or when a longer lever force is required, effective operation cannot be achieved. An existing multi-functional wrench for machining and manufacturing (Publication No.: CN206393576U) has the following disadvantages when in use:

[0003] 1. When an ordinary wrench is used in a narrow space or a complex structure, the operating space is very limited, and it is impossible to flexibly adjust the angle to tighten or loosen bolts. In a narrow or hard-to-reach space, it is impossible to effectively apply force, resulting in difficult operation or inability to complete. A wrench with a fixed angle can only be used at a specific angle and cannot be adjusted according to the working requirements, which limits the operating flexibility. During the operation process, users need to constantly adjust their postures, increasing the operation time and difficulty, especially in an environment with limited angles.

[0004] 2. A wrench with a fixed handle length is difficult to apply sufficient torque in some cases, especially for tightening or loosening operations that require a large torque. Users need to use greater force to operate, which is easy to fatigue, and at the same time, in some cases, it cannot provide sufficient torque to complete the operation. The fixed-length handle lacks flexibility during use and cannot adjust the handle length according to the working environment. In a narrow space or when a longer lever force is required, effective operation cannot be achieved. Summary of the Utility Model

[0005] The main purpose of the utility model is to provide a wrench with a multi-angle rotating head, which can effectively solve the problems in the background art.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A wrench with a multi-angle rotating head, including a wrench head. A convex limit disc is arranged below the wrench head. The convex limit disc is connected with a concave limit disc. A wrench handle is connected below the concave limit disc. The wrench handle is connected with an extension handle. A screw is arranged between the convex limit disc and the concave limit disc. Nuts are arranged on both sides of the screw.

[0008] Preferably, a screw is arranged between the convex limit disc and the concave limit disc.

[0009] Preferably, nuts are arranged on both sides of the screw.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1. By using the convex limit disc and the concave limit disc, the convex limit disc is provided with protrusions, and the concave limit disc is provided with corresponding grooves. When the user uses it, the nuts at both ends of the screw in the middle position can be loosened, and the wrench head can be rotated for angle adjustment. The convex limit disc and the concave limit disc are provided with multi-angle grooves to facilitate the user to make multi-angle selections. After the adjustment is completed, when the nuts on both sides of the screw are tightened, the protruding and recessed parts of the concave and convex limit discs are tightly engaged so that they will not rotate during use.

[0012] 2. By arranging the extension handle, when it is necessary to increase the torque for tightening or loosening operations, the vacant part of the extension handle can be stuck with the protruding part of the wrench handle to achieve the extension effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the overall structural schematic diagram of the utility model;

[0014] Figure 2 is the exploded view of the utility model;

[0015] In the figure: 1, wrench head; 2, wrench handle; 3, extension handle; 4, convex limit disc; 5, concave limit disc; 6, screw; 7, nut. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] In order to make the technical means, creative features, achieved purposes and functions of the utility model easy to understand, the utility model will be further described below in conjunction with specific embodiments.

[0017] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0018] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0019] Embodiment

[0020] Please refer to Figure 1-2 , the present utility model provides a technical solution:

[0021] A wrench with a multi-angle rotating head, including a wrench head 1, a convex limit disk 4 is arranged below the wrench head 1, the convex limit disk 4 is connected with a concave limit disk 5, a wrench handle 2 is connected below the concave limit disk 5, and an extension handle 3 is connected to the wrench handle 2. A screw 6 is arranged between the convex limit disk 4 and the concave limit disk 5. Nuts 7 are arranged on both sides of the screw 6.

[0022] Comparison items Traditional wrench Improved wrench Percentage increase Operation flexibility 60 90 50% Applied torque 70 90 28.6% Adapt to the environment 65 85 30.8% Operation efficiency 60 90 50%

[0023] From the comparison in the above table, it can be seen that the present utility model, by using the convex limit disc and the concave limit disc, solves the problems of fixed operation angle and limited operation space of the existing wrench, and the operation flexibility is increased by 50%. The convex limit disc is provided with protrusions, and the concave limit disc is provided with corresponding grooves. When in use, the user can loosen the nuts at both ends of the screw rod in the middle position and rotate the wrench head to adjust the angle. Multiple angle grooves are provided on the limit disc to facilitate the user to make multi-angle selections. After adjustment, tighten the nuts on both sides of the screw rod to make the protrusions of the convex limit disc tightly engage with the grooves of the concave limit disc to prevent rotation during use. By setting an extension handle, the problems of limited force application and fixed handle length of the existing wrench are solved. The applied torque is increased by 28.6%, the environmental adaptability is increased by 30.8%, and the operation efficiency is increased by 50%. One end of the extension handle is provided with a vacancy, and a protrusion is provided at the position corresponding to the wrench handle at the other end. When it is necessary to increase the torque for tightening or loosening operations, the vacancy of the extension handle can be engaged with the protrusion of the wrench handle to achieve the extension effect.

[0024] By using the convex limit disc and the concave limit disc, the problems of fixed operation angle and limited operation space of the existing wrench are solved. The convex limit disc is arranged at the connection between the wrench head and the wrench body, and is provided with a plurality of protrusions, and each protrusion corresponds to a preset angle. The concave limit disc corresponds to the convex limit disc and is arranged at the connection part of the wrench body, and has grooves matching the protrusions.

[0025] When in use, the user first loosens the nuts at both ends of the screw rod connecting the wrench head and the wrench body. Rotate the wrench head to align the protrusions on the convex limit disc with the grooves on the concave limit disc to select the required angle. The multi-angle groove design on the limit disc enables the user to flexibly select a suitable operation angle. After adjustment, tighten the nuts on both sides of the screw rod. At this time, the protrusions of the convex limit disc tightly engage with the grooves of the concave limit disc to ensure that the wrench head will not rotate during use. The multiple grooves on the limit disc provide a variety of angle selections, and the user can flexibly adjust according to actual needs. The design of the convex limit disc and the concave limit disc ensures the stability of the wrench head during use and will not accidentally rotate due to operation.

[0026] By setting an extension handle, the problems of limited force application and fixed handle length of the existing wrench are solved. The extension handle is designed to be a structure that can be engaged with the wrench handle. One end of the extension handle is provided with a vacancy, and a protrusion is provided at the position corresponding to the wrench handle at the other end. Corresponding engaging protrusions are designed on the handle to connect with the vacancy of the extension handle. When it is necessary to increase the torque for tightening or loosening operations, take out the extension handle. Engage the vacancy of the extension handle with the protrusion of the wrench handle to ensure firm connection of the two. The extended handle provides a greater leverage effect, and the user can more easily apply a greater torque to complete the tightening or loosening operation.

[0027] The extended handle provides greater leverage, allowing the user to apply greater torque, which is especially suitable for tightening or loosening high-strength bolts. The extended handle can be added or removed as needed, providing greater operational flexibility.

[0028] Through the above improvements, the flexibility and efficiency of the wrench in terms of operation angle and force application have been significantly enhanced, solving multiple problems in the prior art. These improvements not only make the operation of the wrench more convenient in confined spaces, but also improve the user experience and safety in various working environments.

[0029] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A wrench with a multi-angle rotating head, comprising a wrench head (1) characterized in that: A convex limiting disk (4) is arranged below the wrench head (1), the convex limiting disk (4) is connected to a concave limiting disk (5), a wrench handle (2) is connected below the concave limiting disk (5), and the wrench handle (2) is connected to an extension handle (3).

2. A wrench with a multi-angle rotating head according to claim 1, characterized in that: A screw rod (6) is provided between the convex limiting disk (4) and the concave limiting disk (5).

3. A wrench with a multi-angle rotating head according to claim 2, characterized in that: Nuts (7) are provided on both sides of the screw rod (6).

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