Folding wrench convenient to carry

Abstract

The utility model discloses a folding wrench convenient to carry, which relates to the field of tools and machinery and comprises a handle, a telescopic rod, a bolt, a connecting and fixing block and the like. Due to the folding design, the tool is convenient to carry, and the use flexibility of the tool can be improved. The multifunctional wrench can be folded and stored when not used and can be rapidly unfolded when used, the requirement of a user for maintenance work anytime and anywhere is met, the design of the detachable wrench head allows the user to replace wrench heads of different specifications and types according to specific requirements, the wrench has multiple functions, the number of tools needing to be carried by the user is reduced, and use is convenient. The length of the handle is adjusted according to task requirements, fatigue feeling during operation can be reduced, and use comfort is improved. And the device is suitable for long-time operation, especially for positions difficult to touch.

Description

Technical Field

[0001] The utility model relates to the field of tools and machinery, and particularly discloses a folding wrench which is easy to carry. Background Art

[0002] With the development of society and the advancement of science and technology, hand tools play an important role in daily life and industrial production. As a common hand tool, wrenches are widely used in various maintenance and assembly operations. There are many types of traditional wrenches, including fixed wrenches, adjustable wrenches, pipe wrenches, etc., which have their own advantages in different application scenarios. However, the existing traditional wrenches still have some shortcomings in portability and versatility, which limits their use effect in specific occasions. The existing four-eye wrench (publication number: CN111590494B) has at least the following disadvantages:

[0003] 1. Existing wrenches: Traditional wrenches are usually fixed structures, large in size, and inconvenient to carry. When users are doing outdoor activities or emergency repairs, they need to carry multiple wrenches of different specifications, which not only takes up space but also increases the burden, so there is an urgent need for a device that can be easily carried.

[0004] 2. Existing wrenches are generally only suitable for bolts or nuts of specific specifications. Users need to carry wrenches of different specifications according to specific maintenance needs. They lack multi-functional integration and cannot meet diverse work needs, so a device that is easy to replace is urgently needed.

[0005] 3. Existing wrenches The length of traditional wrenches is fixed and cannot be adjusted according to specific working scenarios. When operating in a small space or at a specific angle, a fixed-length wrench is difficult to perform at its best, inconvenient to operate, and inefficient, so there is an urgent need for a device that can adjust the length of the wrench. Utility Model Content

[0006] The main purpose of the utility model is to provide a foldable wrench that is easy to carry and can effectively solve the problems in the background technology.

[0007] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a folding wrench that is easy to carry, comprising a handle, a telescopic rod is installed in front of the handle, a bolt is installed in front of the telescopic rod, the front of the bolt is used to fix a connecting and fixing block, rotating shafts are installed on both sides of the connecting and fixing block, a wrench head is connected to the front of the connecting and fixing block through the rotating shaft, a gear is installed on the wrench head, a ratchet head is installed above the gear, a limit fixing block is installed on the right side of the gear, and the limit fixing block cooperates with the gear.

[0008] Preferably, a connecting shaft is installed behind the wrench head.

[0009] Preferably, the telescopic rod can be adjusted in length.

[0010] Preferably, the wrench head is of detachable design.

[0011] Preferably, the gear is a high-precision gear.

[0012] Preferably, the limiting fixing block is used to limit the rotation angle of the wrench head.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The folding design of this utility model is not only convenient to carry, but also improves the flexibility of the tool. It can be folded and stored when not in use, and quickly unfolded when in use, meeting the needs of users to carry out maintenance work anytime and anywhere.

[0015] 2. The detachable wrench head design of the utility model allows the user to replace wrench heads of different specifications and types according to specific needs, so that one wrench has multiple functions and reduces the number of tools that the user needs to carry.

[0016] 3. The utility model can adjust the handle length according to the task needs, which can reduce fatigue during operation and improve the comfort of use. It is suitable for long-term operation, especially in hard-to-reach places. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is an overall cross-sectional view of the utility model;

[0019] In the figure: 1. handle; 2. telescopic rod; 3. bolt; 4. connecting fixing block; 5. rotating shaft; 6. wrench head; 7. ratchet head; 8. gear; 9. connecting shaft; 10. limit fixing block. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Example

[0024] See also Figure 1-2 , the utility model provides a technical solution:

[0025] A folding wrench that is easy to carry comprises a handle, a telescopic rod is installed in front of the handle, a bolt is installed in front of the telescopic rod, the front of the bolt is used to fix a connecting and fixing block, rotating shafts are installed on both sides of the connecting and fixing block, a wrench head is connected to the front of the connecting and fixing block through the rotating shaft, a gear is installed on the wrench head, a ratchet head is installed above the gear, a limited fixing block is installed on the right side of the gear, the limited fixing block cooperates with the gear, a connecting shaft is installed at the rear of the wrench head, the telescopic rod can adjust its length, the wrench head is detachable, the gear is a high-precision gear, and the limited fixing block is used to limit the rotation angle of the wrench head.

[0026] The folding design in this embodiment is not only easy to carry, but also improves the flexibility of use. In actual use, the folding wrench can be quickly unfolded as needed, shortening the preparation time. User test results show that the preparation time for using the folding wrench is reduced by an average of 40%, thereby improving work efficiency. The folding design can effectively avoid accidental damage to other objects or the human body caused by the wrench head during carrying, thereby improving safety. In the safety assessment, the incidence of accidental injuries during transportation and storage of the folding wrench was reduced by 60%.

[0027] In this embodiment, the detachable wrench head design of the utility model allows the user to replace wrench heads of different specifications and types according to specific needs, so that one wrench has multiple functions and reduces the number of tools that the user needs to carry. Experimental data shows that the design of the detachable wrench head enables a set of tools to cover more than 90% of daily maintenance needs, reducing the necessity for users to carry multiple tools. The detachable design makes the replacement and maintenance of the wrench head easier. Users can replace worn wrench heads at any time to extend the overall service life of the tool. User surveys show that the average service life of tools using detachable wrench heads is about 1.5 times longer than that of traditional wrenches.

[0028] It should be noted that the utility model can adjust the handle length according to the task needs, which can reduce fatigue during operation and improve the comfort of use. It is suitable for long-term operations, especially in hard-to-reach locations. Experimental results show that when using a wrench with a telescopic handle to operate in hard-to-reach locations, the user's operating efficiency is improved by about 45%, and the comfort of long-term operations is improved by 30%. Adjusting the handle length according to the task needs can reduce fatigue during operation and improve the comfort of use. User experience feedback shows that the telescopic handle design reduces the user's fatigue during long-term operations by about 35%, especially in complex maintenance tasks.

[0029] The following is a comparison table of experimental data of the utility model:

[0030]

[0031]

[0032] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A portable folding wrench, comprising a handle (1), characterized in that: A telescopic rod (2) is installed in front of the handle (1), a bolt (3) is installed in front of the telescopic rod (2), the front of the bolt (3) is used to fix a connecting and fixing block (4), rotating shafts (5) are installed on both sides of the connecting and fixing block (4), a wrench head (6) is connected to the front of the connecting and fixing block (4) through the rotating shaft (5), a gear (8) is installed on the wrench head (6), a ratchet head (7) is installed above the gear (8), a limit fixing block (10) is installed on the right side of the gear (8), and the limit fixing block (10) cooperates with the gear (8).

2. A portable folding wrench according to claim 1, characterized in that: A connecting shaft (9) is installed at the rear of the wrench head (6).

3. A portable folding wrench according to claim 1, characterized in that: The telescopic rod (2) can be adjusted in length.

4. A portable folding wrench according to claim 1, characterized in that: The wrench head (6) is of detachable design.

5. The portable folding wrench according to claim 1, characterized in that: The gear (8) is a high-precision gear.

6. The portable folding wrench according to claim 1, characterized in that: The limiting fixing block (10) is used to limit the rotation angle of the wrench head (6).

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