Multifunctional combined wrench

Abstract

The utility model discloses a multifunctional combination wrench, which relates to the technical field of dismounting tools and comprises a handle, a fixing head perpendicular to the handle is fixed at one end of the handle, and a nut accommodating cavity for accommodating a nut is arranged on one end face, far away from the handle, of the fixing head; a sliding rod for extruding the side wall of the nut penetrates through the inner wall of the nut accommodating cavity; the handle is in threaded connection with an adjusting bolt; a transmission ball is filled in the fixed head and between the adjusting bolt and the sliding rod; rotation of the adjusting bolt drives the sliding rod to move through the transmission ball, and the nut is clamped. According to the multifunctional combined wrench, the adjusting bolt is screwed to extrude the transmission ball, and the sliding rod moves through transmission of the transmission ball, so that nuts with different sizes can be stably clamped, and the application range of the multifunctional combined wrench is greatly widened.

Description

Technical Field

[0001] This utility model relates to the field of disassembly tool technology, specifically a multi-functional combination wrench. Background Technology

[0002] In fields such as mechanical repair and installation, wrenches are indispensable tools. Their function is to apply torque through rotation to tighten or loosen fasteners such as bolts and nuts. With the diversification of mechanical equipment in industrial manufacturing and daily life, the requirements for the functionality and adaptability of wrenches are increasing.

[0003] Traditional wrenches have many limitations. For example, common open-end wrenches and box wrenches can only be used for nuts or bolts of a specific size. When faced with fasteners of various sizes, maintenance personnel need to carry a large number of wrenches of different sizes, which increases the burden of carrying tools and makes it easy to waste time and reduce work efficiency due to selecting the wrong tool during operation.

[0004] Furthermore, in certain specialized working environments, such as confined spaces or the interiors of equipment with tightly packed components, the operating space for traditional wrenches is limited, making them difficult to use effectively. For example, in a car engine compartment, numerous components are intertwined, and some nuts in corners are difficult to reach and operate with a conventional wrench, making maintenance work exceptionally challenging.

[0005] To address these issues, some multi-functional wrenches have emerged on the market, attempting to adapt to fasteners of different sizes through adjustable structures. However, most existing adjustable multi-functional wrenches suffer from complex structures and unstable clamping. The adjustment mechanisms of some wrenches are overly cumbersome, requiring multiple operations to complete the size adjustment, which not only affects the ease of operation but also easily leads to malfunctions during adjustment. Moreover, when using these wrenches, the clamping force is difficult to distribute evenly for nuts of different sizes, easily causing the nuts to slip during tightening or loosening, damaging the nut surface, and even creating safety hazards.

[0006] In summary, existing wrenches suffer from limited applicability, inconvenient operation, and unstable clamping in practical applications. There is an urgent need for a multi-functional combination wrench that can overcome these shortcomings to meet diverse work needs and improve work efficiency and operational safety. Utility Model Content

[0007] In view of the shortcomings of the existing technology, this utility model provides a multi-functional combination wrench.

[0008] To achieve the above objectives, the technical solution of this utility model is as follows:

[0009] A multi-functional combination wrench includes a handle, one end of which is fixed with a fixed head perpendicular to it, and the fixed head has a nut receiving cavity for placing a nut on the end face away from the handle.

[0010] A sliding rod that presses against the side wall of the nut is penetrating through the inner wall of the nut receiving cavity;

[0011] The handle is threaded with an adjusting bolt, and the interior of the fixing head, located between the adjusting bolt and the sliding rod, is filled with transmission balls.

[0012] The rotation of the adjusting bolt drives the sliding rod to move via the transmission ball, thus clamping the nut.

[0013] Preferably, one end of the sliding rod located inside the fixed head is confined inside the fixed head, and a return spring is installed inside the fixed head to allow the sliding rod to move away from the nut receiving cavity.

[0014] Preferably, the fixed head has an internal channel for the sliding of the transmission ball, and the diameter of the channel is the same as the diameter of the transmission ball.

[0015] Preferably, a guide rod passes through one end of the channel near the adjusting bolt, one end of the guide rod is confined inside the channel, and the other end of the guide rod is in contact with the adjusting bolt.

[0016] Preferably, a straight rod parallel to the sliding rod is fixed to one end face of the sliding rod located inside the fixed head, and the straight rod is inserted into the end of the channel near the sliding rod.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This invention utilizes an adjusting bolt to compress a transmission ball, which in turn moves a sliding rod, thereby enabling stable clamping of nuts of different sizes and greatly expanding the applicability of this multi-functional combination wrench. Attached Figure Description

[0019] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0020] Figure 1 This is a schematic diagram of the structure of a multifunctional combination wrench according to the present invention;

[0021] Figure 2 This is a cross-sectional view of a multifunctional combination wrench according to the present invention;

[0022] Figure 3This utility model Figure 2 Enlarged view of part A in the middle.

[0023] The diagram shows the following labels: 1. Handle; 2. Fixing head; 3. Nut cavity; 4. Sliding rod; 5. Return spring; 6. Transmission ball; 7. Guide rod; 8. Adjusting bolt. Detailed Implementation

[0024] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0025] Example

[0026] like Figure 1-3 As shown, a multi-functional combination wrench includes a handle 1, one end of which is fixed with a fixed head 2 perpendicular to it, and a nut receiving cavity 3 for placing a nut is formed on the end face of the fixed head 2 away from the handle 1.

[0027] A sliding rod 4 that presses against the side wall of the nut is penetrating the inner wall of the nut receiving cavity 3;

[0028] The handle 1 is threaded with an adjusting bolt 8, and the inside of the fixed head 2, located between the adjusting bolt 8 and the sliding rod 4, is filled with a transmission ball 6.

[0029] The rotation of adjusting bolt 8 drives sliding rod 4 to move via transmission ball 6, thus clamping the nut;

[0030] When it is necessary to disassemble some nuts with obstructions on the periphery, align the nut to be disassembled with the nut receiving cavity 3, then turn the adjusting bolt 8 to make the adjusting bolt 8 press the transmission ball 6 to move, thereby pressing the sliding rod 4 through the transmission ball 6 to clamp the nut, and then turn the handle 1 to disassemble the nut.

[0031] This invention utilizes the adjusting bolt 8 to press the transmission ball 6, which in turn moves the sliding rod 4, thereby enabling stable clamping of nuts of different sizes and greatly improving the applicability of this multi-functional combination wrench.

[0032] One end of the sliding rod 4 located inside the fixed head 2 is restricted inside the fixed head 2, and a return spring 5 is installed inside the fixed head 2 to move the sliding rod 4 away from the nut receiving cavity 3;

[0033] By restricting one end of the sliding rod 4 inside the fixed head 2, it is possible to prevent the sliding rod 4 from completely detaching from the fixed head 2, and the sliding rod 4 can be reused. By installing a return spring 5 inside the fixed head 2 to move the sliding rod 4 away from the nut receiving cavity 3, the sliding rods 4 can be kept away from each other in the initial state, which makes it easier to clamp nuts of different sizes.

[0034] The fixed head 2 has a channel inside for the transmission ball 6 to slide, and the diameter of the channel is the same as the diameter of the transmission ball 6;

[0035] By opening a channel inside the fixed head 2 for the transmission ball 6 to slide, the transmission ball 6 can slide smoothly inside the fixed head 2, thereby realizing the transmission between the adjusting bolt 8 and the sliding rod 4;

[0036] A guide rod 7 passes through one end of the channel near the adjusting bolt 8. One end of the guide rod 7 is confined inside the channel, and the other end of the guide rod 7 is in contact with the adjusting bolt 8.

[0037] By passing a guide rod 7 through one end of the channel near the adjusting bolt 8, the adjusting bolt 8 can be indirectly contacted with the transmission ball 6, thereby enabling the adjusting bolt 8 to press the transmission ball 6 to move.

[0038] A straight rod parallel to the sliding rod 4 is fixed on one end face inside the fixed head 2. The straight rod is inserted into the end of the channel near the sliding rod 4.

[0039] By fixing a straight rod parallel to the sliding rod 4 to one end face inside the fixed head 2, and inserting the straight rod into the end of the channel near the sliding rod 4, indirect contact between the transmission ball 6 and the sliding rod 4 can be achieved, thereby enabling the transmission ball 6 to squeeze the sliding rod 4 and increasing the travel of the sliding rod 4.

[0040] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A multi-functional combination wrench, characterized in that: Includes a handle (1), one end of which is fixed with a fixing head (2) perpendicular to it, and a nut receiving cavity (3) for placing a nut is opened on the end face of the fixing head (2) away from the handle (1); A sliding rod (4) that presses against the side wall of the nut is penetrating the inner wall of the nut receiving cavity (3); The handle (1) is threaded with an adjusting bolt (8), and the interior of the fixed head (2) and between the adjusting bolt (8) and the sliding rod (4) is filled with a transmission ball (6); The rotation of the adjusting bolt (8) drives the sliding rod (4) to move through the transmission ball (6), thus clamping the nut.

2. The multi-functional combination wrench according to claim 1, characterized in that: The sliding rod (4) is located inside the fixed head (2) at one end, which is restricted inside the fixed head (2). A return spring (5) is installed inside the fixed head (2) to move the sliding rod (4) away from the nut receiving cavity (3).

3. A multi-functional combination wrench according to claim 2, characterized in that: The fixed head (2) has a channel inside for the transmission ball (6) to slide, and the diameter of the channel is the same as the diameter of the transmission ball (6).

4. A multi-functional combination wrench according to claim 3, characterized in that: A guide rod (7) passes through one end of the channel near the adjusting bolt (8). One end of the guide rod (7) is confined inside the channel, and the other end of the guide rod (7) is in contact with the adjusting bolt (8).

5. A multi-functional combination wrench according to claim 4, characterized in that: A straight rod parallel to the sliding rod (4) is fixed on one end face inside the fixed head (2). The straight rod is inserted into the end of the channel near the sliding rod (4).

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