Bolt fastening auxiliary tool

Abstract

The invention provides a bolt fastening auxiliary tool. The bolt fastening auxiliary tool comprises a tong head assembly, a working handle, a rotating handle, a first locking assembly and a second locking assembly. One end of the working handle is connected with the tong head assembly, the other end of the working handle is rotationally connected with the rotating handle, the first locking assembly and the second locking assembly are arranged at the connecting position of the rotating handle and the working handle, and the rotating handle has a horizontal state and a vertical state. The first locking assembly is used for locking and fixing the rotating handle in the horizontal state, and the second locking assembly is used for locking and fixing the rotating handle in the vertical state. Therefore, the state of the rotating handle is switched, so that the tool can be better held by a person, and the bolt can be efficiently and quickly fastened.

Description

Technical Field

[0001] The invention belongs to the technical field of bolt fastening tools, and in particular relates to a bolt fastening auxiliary tool. Background Art

[0002] Bolt tightening is a vital part of the maintenance and installation of traditional mechanical equipment. Its correctness and reliability directly affect the safety performance and operating efficiency of the equipment. The wrench, as a commonly used installation and disassembly tool, uses the principle of leverage to twist bolts, screws, nuts and other threaded fasteners. It is an extremely common bolt tightening tool. In related technologies, when tightening bolts with a wrench, the operator will hold the wrench and turn the wrench with the bolt as the center of the circle to achieve the purpose of tightening the bolt. However, if the installation surface of the bolt is large and the bolt is installed in the center, or the nut of the bolt is vertically downward, the tightening efficiency and tightening effect will be affected due to insufficient operating space or poor force posture. Summary of the invention

[0003] In view of this, the purpose of the present invention is to propose a bolt tightening auxiliary tool that can change the operator's gripping direction, thereby reducing the impact of insufficient operating space or poor force posture on the tightening efficiency and tightening effect, so as to at least partially solve the problems in the related art.

[0004] To achieve the above object, the technical solution created by the present invention is implemented as follows:

[0005] A bolt tightening auxiliary tool comprises: a clamp head assembly, a working handle, a rotating handle, a first locking assembly and a second locking assembly;

[0006] One end of the working handle is connected to the pliers head assembly, and the other end is rotatably connected to the rotating handle. The first locking assembly and the second locking assembly are both arranged at the connecting portion of the rotating handle and the working handle. The rotating handle has a horizontal state and a vertical state. The first locking assembly is used to lock and fix the rotating handle in the horizontal state, and the second locking assembly is used to lock and fix the rotating handle in the vertical state.

[0007] Further, the first locking assembly includes a plug-in plate, a plug-in rod and a plug-in block;

[0008] The plug plate is fixedly connected to the working handle, and the plug block is fixedly connected to the rotating handle. The plug plate is provided with a first through hole for the plug rod to pass through, and the plug block is provided with a second through hole for the plug rod to pass through. When the rotating handle is in a horizontal state, the first through hole and the second through hole are coaxially arranged, and when the rotating handle is in a vertical state, the axis of the first through hole and the axis of the second through hole are perpendicular to each other.

[0009] Furthermore, there are two plug-in plates, and the two plug-in plates are spaced apart along the length direction of the working handle.

[0010] Furthermore, the first locking assembly also includes a spring, a limiting ring plate and a stopper;

[0011] The limiting ring plate is fixedly connected to the plug rod, the spring is sleeved on the plug rod, and a storage gap for accommodating the spring is provided between the two plug plates. One end of the spring abuts against the limiting ring plate, and the other end of the spring abuts against the plug plate on the side away from the rotating handle. The stop block is fixedly connected to one end of the plug rod away from the plug block and the stop block is located outside the storage gap.

[0012] Further, the second locking assembly includes a locking block, a fixing block and a locking rod;

[0013] The locking block is fixedly connected to the rotating handle, and the fixed block is fixedly connected to the working handle. The fixed block is provided with a receiving groove for receiving the locking block, and the locking block is provided with a third through hole for the locking rod to pass through. The fixed block is provided with a fourth through hole for the locking rod to pass through. When the rotating handle is in a vertical state, the axis of the third through hole is coaxially arranged with the axis of the fourth through hole.

[0014] Furthermore, the second locking assembly includes a bolt fixedly connected to the locking rod.

[0015] Furthermore, the clamp head assembly includes a clamp head body and a mounting head that are fixedly connected;

[0016] An inserting groove for inserting the installation head is provided at one end of the working handle away from the rotating handle.

[0017] Furthermore, the pliers head assembly also includes a limit pin, a fifth through hole is provided on the mounting head for the limit pin to pass through, and a sixth through hole is provided on the working handle for the limit pin to pass through, and the sixth through hole is connected to the plug-in slot. When the mounting head is plugged into the plug-in slot, the fifth through hole and the sixth through hole are coaxially arranged so that the limit pin passes through the working handle and the mounting head.

[0018] Furthermore, it also includes a sleeve and a flexible sleeve, the sleeve is sleeved on the rotating handle, and the flexible sleeve is arranged on the outer wall surface of the sleeve.

[0019] Through the above technical solution, the pliers head assembly is responsible for contacting the bolt or nut, one end of the working handle is connected to the pliers head assembly, and the other end is connected to the rotating handle. The rotating handle can be adjusted between horizontal and vertical states, that is, when the rotating handle is in a horizontal state, it can be locked and fixed by a first locking assembly, and when the rotating handle is in a vertical state, it can be locked and fixed by a second locking assembly. The rotating handle can be converted between horizontal and vertical states, which can help the operator to choose the appropriate state for tightening operations when facing different installation environments, so that the operator can tighten the bolt with a more comfortable grip angle and force direction, while reducing the operator's work intensity, it can also make the tightening operation more efficient and effective. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0021] Figure 1 is a schematic structural diagram of a rotating handle and a working handle in a horizontal state provided in an exemplary embodiment of the present disclosure;

[0022] Figure 2 is a schematic structural diagram of a rotating handle and a working handle in a vertical state provided in an exemplary embodiment of the present disclosure;

[0023] Figure 3 yes Figure 2 A partial enlarged schematic diagram of position A in the middle;

[0024] Figure 4 is a schematic structural diagram of a clamp head assembly provided in an exemplary embodiment of the present disclosure;

[0025] Figure 5 is a schematic structural diagram of a rotating handle provided in an exemplary embodiment of the present disclosure.

[0026] Description of reference numerals:

[0027] 1. Clamp head assembly; 101. Clamp head body; 102. Mounting head; 1021. Fifth through hole; 2. Working handle; 201. Plug slot; 2011. Sixth through hole; 3. Rotating handle; 4. First locking assembly; 401. Plug plate; 4011. Storage interval; 402. Plug rod; 403. Plug block; 4031. Second through hole; 404. Spring; 405. Limiting ring plate; 406. Stop block; 5. Second locking assembly; 501. Locking block; 5011. Third through hole; 502. Fixing block; 503. Locking rod; 6. Plug; 7. Limiting pin; 8. Sleeve; 9. Flexible sleeve. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0030] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it 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 invention can be understood according to specific circumstances.

[0031] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0032] In the maintenance and installation of traditional mechanical equipment, bolt tightening is not only related to the installation accuracy of the equipment, but also directly affects the safety and long-term stability of the equipment. Bolts, as the most commonly used fastening elements, undertake the important task of connecting various components and transmitting loads. Therefore, it is particularly important to ensure the reliability, accuracy and balance of force during the bolt tightening process. As a common hand tool, the wrench converts the applied force into rotational torque through the principle of leverage to tighten or loosen fasteners such as bolts and nuts. In daily operations, operators hold the wrench, rotate the tool or apply thrust, and use torque to overcome the friction of the thread to achieve bolt tightening.

[0033] However, in many practical application scenarios, the installation position of the bolt is often limited by space, especially in narrow or special angle installation environments, the use of traditional manual wrenches may face many challenges. For example, when the bolt installation surface is large and the bolt is centered, the operator may not be able to apply force in an appropriate posture, or the length and angle of the tool are not suitable for this position, which affects the comfort and efficiency of the force application process. In addition, when the nut of the bolt is in a vertical downward direction, due to the limitation of the operating space, the angle of the hand-held wrench and the direction of force are often difficult to adjust to the optimal state, which will not only make the operation more laborious, but may also cause the bolt to fail to achieve the expected tightening effect, and there is even a risk of loosening or damage.

[0034] Based on this, in a specific embodiment of the present disclosure, a bolt tightening auxiliary tool is provided, referring to Figures 1 to 5 As shown, the bolt tightening auxiliary tool includes a pliers head assembly 1, a working handle 2, a rotating handle 3, a first locking assembly 4 and a second locking assembly 5, wherein one end of the working handle 2 is connected to the pliers head assembly 1, and the other end is rotatably connected to the rotating handle 3, the first locking assembly 4 and the second locking assembly 5 are both arranged at the connecting portion of the rotating handle 3 and the working handle 2, the rotating handle 3 has a horizontal state and a vertical state, the first locking assembly 4 is used to lock and fix the rotating handle 3 in the horizontal state, and the second locking assembly 5 is used to lock and fix the rotating handle 3 in the vertical state.

[0035] Through the above technical scheme, the pliers head assembly 1 is responsible for contacting the bolt or nut, one end of the working handle 2 is connected to the pliers head assembly 1, and the other end is connected to the rotating handle 3. The rotating handle 3 can be adjusted between horizontal and vertical states, that is, when the rotating handle 3 is in a horizontal state, it can be locked and fixed by the first locking assembly 4, and when the rotating handle 3 is in a vertical state, it can be locked and fixed by the second locking assembly 5. The rotating handle 3 is converted between the horizontal and vertical states, which can help the operator to choose the appropriate state for tightening operations when facing different installation environments, so that the operator can tighten the bolts with a more comfortable grip angle and force direction, while reducing the operator's work intensity, it can also make the tightening operation more efficient and effective.

[0036] In some embodiments, reference Figures 1 to 3As shown, the first locking assembly 4 includes a plug-in plate 401, a plug-in rod 402 and a plug-in block 403, wherein the plug-in plate 401 is fixedly connected to the working handle 2, the plug-in block 403 is fixedly connected to the rotating handle 3, the plug-in plate 401 is provided with a first through hole for the plug-in rod 402 to pass through, and the plug-in block 403 is provided with a second through hole 4031 for the plug-in rod 402 to pass through. When the rotating handle 3 is in a horizontal state, the first through hole and the second through hole 4031 are coaxially arranged, and when the rotating handle 3 is in a vertical state, the axis of the first through hole and the axis of the second through hole 4031 are aligned. The lines are perpendicular to each other, that is, when the rotating handle 3 is in a horizontal state, the first through hole is coaxially arranged with the second through hole 4031, and the plug-in rod 402 can pass through the plug-in board 401 and the plug-in block 403 in sequence, and the plug-in block 403 is limited by the plug-in rod 402, so that the rotating handle 3 fixedly connected to the plug-in block 403 is locked and fixed, ensuring that during the tightening process, the rotating handle 3 and the working handle 2 have good connection stability, and good connection stability helps the operator to use auxiliary tools to tighten the bolts more comfortably.

[0037] In some embodiments, reference Figures 1 to 3 As shown, in order to improve the stability of the plug-in rod 402 after passing through the plug-in board 401 and the plug-in block 403, the number of the plug-in boards 401 is two, and the two plug-in boards 401 are arranged at intervals along the length direction of the working handle 2, that is, when the plug-in rod 402 passes through the two plug-in boards 401 in sequence, the two plug-in boards 401 can provide support for the plug-in rod 402, so that the plug-in rod 402 has higher stability, thereby further enhancing the connection stability between the rotating handle 3 and the working handle 2, ensuring that the rotating handle 3 will not loosen or deviate during the tightening process, thereby improving the reliability and safety of the tightening operation.

[0038] In some embodiments, during the tightening process, the rotating handle 3 may be subjected to external forces, such as uneven force applied by the operator or vibration of the tool. The two plug-in plates 401 can effectively prevent the plug-in rod 402 from being offset under the action of external forces, thereby ensuring that the connection between the rotating handle 3 and the working handle 2 is always stable. At the same time, the good connection stability makes it more comfortable for the operator to tighten the bolts using auxiliary tools, and the operator does not need to worry about the rotating handle 3 suddenly loosening or offsetting during the tightening process, thereby improving the comfort and efficiency of the operation.

[0039] In some embodiments, reference Figures 1 to 3As shown, in order to further improve the stability of the plug rod 402 so that the plug rod 402 can more stably limit the plug block 403, the first locking assembly 4 also includes a spring 404, a limiting ring plate 405 and a stopper 406, wherein the limiting ring plate 405 is fixedly connected to the plug rod 402, the spring 404 is sleeved on the plug rod 402, and a storage gap 4011 for accommodating the spring 404 is provided between the two plug plates 401, one end of the spring 404 abuts against the limiting ring plate 405, and the other end of the spring 404 abuts against the plug plate 401 away from the side of the rotating handle 3, the stopper 406 is fixedly connected to the end of the plug rod 402 away from the plug block 403 and the stopper 406 is located outside the storage gap 401, and the stopper 406 can facilitate the operator to plug and unplug the plug rod 402.

[0040] For example, the spring 404 is sleeved on the plug rod 402 and the plug rod 402 is fixedly connected with a limiting ring plate 405. Figure 3 As shown, a storage gap 4011 is formed between the two plug-in boards 401, and the plug-in rod 402 passes through the second through hole 4031 of the plug-in block 403 after passing through one of the plug-in boards 401, the storage gap 4011 and the other plug-in board 401 in sequence, thereby limiting and fixing the plug-in block 403, wherein one end of the spring 404 abuts against the limiting ring plate 405, and the other end of the spring 404 abuts against the plug-in board 401 on the side away from the rotating handle 3. When it is necessary to convert the rotating handle 3 from the horizontal state to the vertical state, the operator can pull the plug-in rod 402 toward the side away from the plug-in block 403 so that one end of the plug-in rod 402 is disengaged from the second through hole 4031 of the plug-in block 403, and then bend the rotating handle 3 to convert the state of the rotating handle 3. When the rotating handle 3 is in the vertical state, the rotating handle 3 is locked and fixed by the second locking assembly 5;

[0041] Similarly, when it is necessary to convert the rotating handle 3 from the vertical state to the horizontal state, the locking fixation of the rotating handle 3 by the second locking assembly 5 is canceled, and the rotating handle 3 is bent until the rotating handle 3 is in the horizontal state. It should be noted that before the state conversion, the operator needs to pull the plug rod 402 toward the side away from the plug block 403. At this time, the spring 404 is compressed. When the rotating handle 3 is completely in the horizontal state, the pulled plug rod 402 is released. Under the elastic force of the spring 404, the plug rod 402 moves toward one end of the plug block 403 and limits the plug block 403 through the second through hole 4031.

[0042] At the same time, with the coordinated use of the spring 404 and the limiting ring plate 405, the spring 404 can always give a thrust to the plug-in rod 402, so that the plug-in rod 402 can stably pass through the plug-in block 403, that is, when subjected to external force or vibration, the plug-in rod 402 will not easily detach from the plug-in block 403, thereby ensuring the connection stability between the working handle 2 and the rotating handle 3.

[0043] In some embodiments, reference Figure 1 and Figure 3 As shown, the second locking assembly 5 includes a locking block 501, a fixed block 502 and a locking rod 503, wherein the locking block 501 is fixedly connected to the rotating handle 3, the fixed block 502 is fixedly connected to the working handle 2, the fixed block 502 is provided with a receiving groove for accommodating the locking block 501, the locking block 501 is provided with a third through hole 5011 for the locking rod 503 to pass through, and the fixed block 502 is provided with a fourth through hole for the locking rod 503 to pass through, that is, when the rotating handle 3 is in a vertical state, the axis of the third through hole 5011 is coaxially arranged with the axis of the fourth through hole. At this time, the locking rod 503 can pass through the third through hole 5011 and the fourth through hole, penetrate the locking hole and the fixed block 502, and then complete the locking and fixation of the rotating handle 3.

[0044] In some embodiments, reference Figure 3 As shown, the second locking assembly 5 includes a bolt 6 fixedly connected to the locking rod 503 , and the bolt 6 can facilitate personnel to insert and remove the locking rod 503 .

[0045] In some embodiments, reference Figure 3 As shown, the pliers head assembly 1 includes a fixed pliers head body 101 and a mounting head 102, wherein an end of the working handle 2 away from the rotating handle 3 is provided with a plug-in slot 201 for the mounting head 102 to be plugged in, that is, in order to enable the pliers head assembly 1 to better adapt to bolts or nuts of various sizes, this can be achieved by providing a plug-in slot 201 on the working handle 2. When the pliers head body 101 cannot match the bolt to be tightened, a pliers head body 101 of matching size can be selected for replacement.

[0046] In some embodiments, in order to enable the mounting head 102 to be stably connected to the working handle 2, it can be fixed with the help of a stop pin 7, that is, Figure 4 As shown, the pliers head assembly 1 also includes a limit pin 7, a fifth through hole 1021 is provided on the mounting head 102 for the limit pin 7 to pass through, and a sixth through hole 2011 is provided on the working handle 2 for the limit pin 7 to pass through, and the sixth through hole 2011 is connected to the plug-in slot 201. When the mounting head 102 is plugged into the plug-in slot 201, the fifth through hole 1021 and the sixth through hole 2011 are coaxially arranged so that the limit pin 7 passes through the working handle 2 and the mounting head 102.

[0047] In some embodiments, reference Figure 1 and Figure 5As shown, a sleeve 8 is also provided on the rotating handle 3 and a flexible sleeve 9 is provided on the outer wall surface of the sleeve 8, wherein the sleeve 8 can be a contoured structure that can better fit the human hand and is convenient for people to hold. The function of the sleeve 8 is to protect the rotating handle 3 and facilitate people to hold the rotating handle 3. At the same time, the flexible sleeve 9 is provided on the outer wall surface of the sleeve 8, which can improve the stability of holding, that is, the flexible sleeve 9 can be made of rubber or other materials to increase the friction when holding. The setting of the flexible sleeve 9 can not only increase the feel when holding, but also have a certain anti-slip performance.

[0048] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present disclosure (including the claims) is limited to these examples. Within the scope of the present invention, the above embodiments or technical features in different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0049] The embodiments of the present invention are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A bolt tightening auxiliary tool, characterized in that: include: A pliers head assembly (1), a working handle (2), a rotating handle (3), a first locking assembly (4) and a second locking assembly (5); One end of the working handle (2) is connected to the pliers head assembly (1), and the other end is rotatably connected to the rotating handle (3). The first locking assembly (4) and the second locking assembly (5) are both arranged at the connection position between the rotating handle (3) and the working handle (2). The rotating handle (3) has a horizontal state and a vertical state. The first locking assembly (4) is used to lock and fix the rotating handle (3) in the horizontal state, and the second locking assembly (5) is used to lock and fix the rotating handle (3) in the vertical state.

2. A bolt tightening auxiliary tool according to claim 1, characterized in that: The first locking assembly (4) comprises a plug-in plate (401), a plug-in rod (402) and a plug-in block (403); The plug plate (401) is fixedly connected to the working handle (2), and the plug block (403) is fixedly connected to the rotating handle (3). The plug plate (401) is provided with a first through hole for the plug rod (402) to pass through, and the plug block (403) is provided with a second through hole (4031) for the plug rod (402) to pass through. When the rotating handle (3) is in a horizontal state, the first through hole and the second through hole (4031) are coaxially arranged. When the rotating handle (3) is in a vertical state, the axis of the first through hole and the axis of the second through hole (4031) are perpendicular to each other.

3. A bolt tightening auxiliary tool according to claim 2, characterized in that: The number of the plug-in plates (401) is two, and the two plug-in plates (401) are arranged at intervals along the length direction of the working handle (2).

4. A bolt tightening auxiliary tool according to claim 3, characterized in that: The first locking assembly (4) further comprises a spring (404), a limiting ring plate (405) and a stopper (406); The limiting ring plate (405) is fixedly connected to the plug rod (402), the spring (404) is sleeved on the plug rod (402), a storage gap (4011) for storing the spring (404) is provided between the two plug plates (401), one end of the spring (404) abuts against the limiting ring plate (405), the other end of the spring (404) abuts against the plug plate (401) on the side away from the rotating handle (3), the stop block (406) is fixedly connected to the end of the plug rod (402) away from the plug block (403), and the stop block (406) is located outside the storage gap (4011).

5. The bolt tightening auxiliary tool according to claim 1, characterized in that: The second locking assembly (5) comprises a locking block (501), a fixing block (502) and a locking rod (503); The locking block (501) is fixedly connected to the rotating handle (3), the fixed block (502) is fixedly connected to the working handle (2), the fixed block (502) is provided with a receiving groove for receiving the locking block (501), the locking block (501) is provided with a third through hole (5011) for the locking rod (503) to pass through, the fixed block (502) is provided with a fourth through hole for the locking rod (503) to pass through, and when the rotating handle (3) is in a vertical state, the axis of the third through hole (5011) is coaxially arranged with the axis of the fourth through hole.

6. A bolt tightening auxiliary tool according to claim 5, characterized in that: The second locking assembly (5) comprises a bolt (6) fixedly connected to the locking rod (503).

7. A bolt tightening auxiliary tool according to claim 1, characterized in that: The clamp head assembly (1) comprises a clamp head body (101) and a mounting head (102) which are fixedly connected; An end of the working handle (2) facing away from the rotating handle (3) is provided with an insertion groove (201) for the installation head (102) to be inserted into.

8. A bolt tightening auxiliary tool according to claim 7, characterized in that: The pliers head assembly (1) also includes a limit pin (7), the mounting head (102) is provided with a fifth through hole (1021) for the limit pin (7) to pass through, the working handle (2) is provided with a sixth through hole (2011) for the limit pin (7) to pass through, the sixth through hole (2011) is connected to the insertion slot (201), and when the mounting head (102) is inserted into the insertion slot (201), the fifth through hole (1021) and the sixth through hole (2011) are coaxially arranged so that the limit pin (7) passes through the working handle (2) and the mounting head (102).

9. The bolt tightening auxiliary tool according to claim 1, characterized in that: It also comprises a sleeve (8) and a flexible sleeve (9), wherein the sleeve (8) is sleeved on the rotating handle (3), and the flexible sleeve (9) is arranged on the outer wall surface of the sleeve (8).

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