Knocking wrench capable of increasing stress area

Abstract

The utility model discloses a knocking wrench capable of increasing stress area, which relates to the field of auxiliary tools, and comprises an adjusting assembly and a knocking wrench, the knocking wrench is movably sleeved with a mounting box, a fixed part is arranged in the mounting box, an adjusting part is arranged on the fixed part, a moving part is arranged on the adjusting part, and the moving part is provided with a movable part. A placing piece is arranged on the top of the moving piece, and a pushing piece is arranged on one side of the moving piece. Through the cooperation of the moving part, the placing part and the pushing part, the knocking area of the knocking wrench is increased, a worker can conveniently conduct knocking operation, normal work of bolt mounting or dismounting is ensured, meanwhile, the device can be adjusted and fixed according to the size of the knocking wrench, the device can be matched with knocking wrenches of different models, and the practicability is high. And the practicability is higher.

Description

Technical Field

[0001] The utility model relates to the field of auxiliary tools, in particular to a percussion wrench capable of increasing a force-bearing area. Background Art

[0002] The percussion wrench is one of the large industrial tools, widely used in oil extraction, oil fields, oil refining, petrochemical, chemical, power generation, shipbuilding, metallurgy, ore, machinery and other industries. It has a wide range of applications and is strong and durable. The percussion wrench is forged from high-quality medium carbon steel or high-quality alloy steel as a whole, and is suitable for industries such as petroleum, chemical, metallurgy, power generation, oil refining, shipbuilding, petrochemical, etc. It is suitable for occasions where the working space is small and ordinary wrenches cannot be used. It is used to screw out hexagonal bolts or nuts. The turning angle is small, and it can be used in places with only a small swing angle (only need to turn the wrench 1 / 2 of the turning angle), and because of the large contact surface, it can be used for strong tightening. The percussion wrench is an important manual wrench, generally referring to the handheld end as the percussion end and the front end as the working end.

[0003] Due to design limitations, traditional percussion wrenches can only percuss narrow side surfaces, so objects need to be struck very precisely during use, and the operator's technical level is extremely high. In addition, when the working position of the percussion wrench is at the bottom plane, it is close to the surface of the object, which will hinder the worker from performing the percussion operation, thereby affecting the normal operation of bolt installation or removal. Therefore, a percussion wrench that can increase the force-bearing area is proposed. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the above problems and / or the problems existing in the prior art, the present utility model is proposed.

[0006] Therefore, the utility model aims to solve the technical problem that the existing knocking wrench has a small knocking surface.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a percussion wrench that can increase the force-bearing area, comprising an adjustment component, comprising a percussion wrench, a mounting box movably sleeved on the percussion wrench, a fixing part is arranged inside the mounting box, an adjusting part is arranged on the fixing part, a moving part is arranged on the adjusting part, a placing part is arranged on the top of the moving part, and a pushing part is arranged on one side of the moving part.

[0008] As a preferred solution of the impact wrench capable of increasing the force-bearing area described in the utility model, a fixing seat is arranged at the inner bottom of the installation box, a supporting frame is symmetrically arranged at the top of the fixing seat, a limiting ring is arranged between the two supporting frames, and a first limiting groove is symmetrically opened on the inner wall of the limiting ring.

[0009] As a preferred solution of the impact wrench capable of increasing the force-bearing area described in the utility model, a first bevel gear is arranged on the fixed seat, a first rotating rod is arranged on one side of the first bevel gear, the first rotating rod passes through the installation box, and a first rotating handle is arranged at one end of the first rotating rod.

[0010] As a preferred solution of the percussion wrench capable of increasing the force-bearing area described in the utility model, wherein: the first bevel gear is meshingly connected with a second bevel gear, and the second bevel gear is provided with a connecting rod.

[0011] As a preferred solution of the impact wrench capable of increasing the force-bearing area described in the utility model, the movable part includes an adjusting column arranged on the connecting rod, a limiting plate is symmetrically arranged on the adjusting column, the limiting plate is adapted to the first limiting groove, a first rack is arranged on the outer side of the adjusting column, and a coordinating gear is meshedly connected to the first rack.

[0012] As a preferred solution of the impact wrench capable of increasing the force-bearing area described in the utility model, the placement piece includes a right-angle plate arranged on the top of the adjusting column, a first spring is arranged on one side of the right-angle plate, a clamping plate is arranged at one end of the first spring, and the top of the clamping plate is arranged in an arc shape.

[0013] As a preferred solution of the knock wrench capable of increasing the force-bearing area described in the utility model, the pushing member includes a second rack arranged on the coordinating gear, a slider is arranged on one side of the second rack, a slide rail is arranged on the inner wall of the mounting box, a connecting plate is arranged at one end of the second rack, and a knocking panel is arranged at one end of the connecting plate.

[0014] As a preferred solution of the percussion wrench capable of increasing the force-bearing area of ​​the utility model, a second limiting groove is provided on the inner top of the installation box, and the second limiting groove is adapted to the connecting plate;

[0015] A placement groove is provided on one side of the installation box, and the placement groove is slidably connected to the knocking panel.

[0016] As a preferred solution of the impact wrench capable of increasing the force-bearing area described in the utility model, a second rotating rod is provided on one side of the coordination gear, the second rotating rod passes through the installation box, a second spring is provided on the second rotating rod, a second rotating handle is provided at one end of the second rotating rod, an adjusting disk is provided on the middle section of the second rotating rod, and both ends of the second spring are respectively connected to the adjusting disk and the installation box.

[0017] As a preferred solution of the percussion wrench capable of increasing the force-bearing area of ​​the utility model, a fixing block is arranged on the outer wall of the installation box, a sleeve is arranged on one side of the fixing block, a third spring is arranged inside the sleeve, a fixing rod is arranged at one end of the third spring, and an auxiliary block is arranged on the fixing rod;

[0018] The first rotating rod is provided with a limiting hole, and the fixing rod is movably inserted into the limiting hole.

[0019] The beneficial effects of the utility model are as follows: through the cooperation between the moving part, the placing part and the pushing part, the striking area of ​​the striking wrench is increased, which is convenient for the staff to perform the striking operation, thereby ensuring the normal operation of the bolt installation or removal, and at the same time, it can be adjusted and fixed according to the size of the striking wrench, so that the device can be adapted to different types of striking wrenches, and is more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following is a brief introduction to the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0021] Figure 1 A schematic diagram of the overall structure of the percussion wrench capable of increasing the force-bearing area according to an embodiment of the utility model;

[0022] Figure 2 A cross-sectional view of a percussion wrench capable of increasing the force-bearing area according to an embodiment of the utility model;

[0023] Figure 3 A schematic diagram of the partial structure of the impact wrench capable of increasing the force-bearing area according to the embodiment provided by the utility model;

[0024] Figure 4 A cross-sectional view of a percussion wrench capable of increasing the force-bearing area according to an embodiment of the utility model;

[0025] Figure 5 This is an enlarged schematic diagram of A in the striking wrench capable of increasing the force-bearing area according to an embodiment of the utility model;

[0026] Figure 6 This is a schematic structural diagram of a locking member in a knock wrench capable of increasing the force-bearing area according to an embodiment of the utility model. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general proportion, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0030] Secondly, the "one embodiment" or "embodiment" referred to herein refers to a specific feature, structure or characteristic that can be included in at least one implementation of the utility model. The "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0031] Example 1

[0032] Reference Figure 1-3 , this embodiment provides a strike wrench that can increase the force-bearing area.

[0033] The impact wrench capable of increasing the force bearing area includes an adjustment assembly 100 .

[0034] Specifically, the adjustment assembly 100 includes a striking wrench 101, and the striking wrench 101 is movably sleeved with an installation box 102. The installation box 102 is provided to facilitate the installation of a fixing member 103. The fixing member 103 is provided inside the installation box 102. The fixing member 103 is provided to facilitate the rotation of the adjusting member 104. The adjusting member 104 is provided with a moving member 105. The adjusting member 104 and the moving member 105 cooperate with each other to make the placing member 106 and the pushing member 106 move. The position of the movable member 105 is adjusted by a placing member 106 on the top of the movable member 105. Through the setting of the placing member 106, the position of the bottom and one side of the knock wrench 101 can be limited after the movement to a good position, so as to avoid the knock wrench 101 from shaking during the knocking process, thereby ensuring the knocking effect. A pushing member 107 is provided on one side of the movable member 105. Through the setting of the pushing member 107, the knocking surface of the knock wrench is increased, so that the knocking area of ​​the knocking wrench is increased, which is convenient for the staff to perform the knocking operation, thereby ensuring the normal operation of the bolt installation or removal.

[0035] Preferably, a fixing seat 103a is provided at the inner bottom of the installation box 102. The setting of the fixing seat 103a facilitates the installation of the adjusting member 104. A supporting frame 103b is symmetrically provided on the top of the fixing seat 103a. The setting of the supporting frame 103b facilitates the limiting fixation of the limiting ring 103c. A limiting ring 103c is provided between the two supporting frames 103b. The inner wall of the limiting ring 103c is symmetrically provided with a first limiting groove 103d. Through the cooperation between the limiting ring 103c and the first limiting groove 103d, the adjusting column 105a in the limiting ring 103c is affected by the first limiting groove 103d when rotating, and the rotating force is converted into an upward moving force, thereby realizing the up and down movement of the adjusting column 105a.

[0036] Furthermore, a first bevel gear 104a is provided on the fixed seat 103a, and a first rotating rod 104b is provided on one side of the first bevel gear 104a. The first rotating rod 104b passes through the installation box 102, and a first turning handle 104c is provided at one end of the first rotating rod 104b. Through the cooperation between the first rotating rod 104b and the first turning handle 104c, when the staff rotates the first turning handle 104c, the first rotating rod 104b is driven by the first turning handle 104c to rotate, thereby driving the first bevel gear 104a on one side of the first rotating rod 104b to rotate synchronously, and the first bevel gear 104a is meshingly connected with the second bevel gear 104d, and the second bevel gear 104d is provided with a connecting rod 104e. Through the meshing cooperation between the first bevel gear 104a and the second bevel gear 104d, when the first bevel gear 104a rotates, the second bevel gear 104d is driven to rotate, thereby realizing the rotation of the connecting rod 104e on the second bevel gear 104d.

[0037] Furthermore, the moving member 105 includes an adjusting column 105a arranged on the connecting rod 104e, and a limiting plate 105b is symmetrically arranged on the adjusting column 105a. The limiting plate 105b is adapted to the first limiting groove 103d. Through the setting of the adjusting column 115a, it can be synchronously rotated when the connecting rod 104e rotates. Due to the cooperation between the first limiting groove 103d and the limiting plate 105b, the adjusting column 105a moves upward, driving the top placement member 106 to move upward, so that the top of the placement member 106 is aligned with the knocking plate. The hand 101 fits well, thereby realizing the limit of the bottom of the strike wrench 101, and a first rack 105c is arranged on the outer side of the adjusting column 105a, and a coordination gear 105d is meshed and connected to the first rack 105c. Through the cooperation between the first rack 105c and the coordination gear 105d, when the adjusting column 105a moves upward, it drives the first rack 105c to move upward synchronously, thereby driving the coordination gear 105d on one side to rotate, so that the pushing member 107 connected to the coordination gear 105d moves forward.

[0038] At the same time, the placement piece 106 includes a right-angle plate 106a arranged on the top of the adjusting column 105a. The setting of the right-angle plate 106a facilitates better installation of the first spring 106b. A first spring 106b is arranged on one side of the right-angle plate 106a, and a clamping plate 106c is arranged at one end of the first spring 106b. The top of the clamping plate 106c is arranged in an arc shape. Through the cooperation between the first spring 106b and the clamping plate 106c, when the right-angle plate 106a moves upward and fits with the strike wrench 101 under the push of the adjusting column 105a, it can be adjusted in time according to the size of the strike wrench 101, and after the adjustment, one side of the strike wrench 101 can be limited and fixed, so that the installation box 102 can adapt to different types of strike wrenches, which is more practical.

[0039] Example 2

[0040] Reference Figure 4-5 , which is the second embodiment of the utility model, is based on the previous embodiment, and is different from the previous embodiment in that: the pusher 107 includes a second rack 107a arranged on the coordination gear 105d, and through the cooperation between the coordination gear 105d and the second rack 107a, when the coordination gear 105d rotates, the second rack 107a is driven to move forward, a slider 107b is arranged on one side of the second rack 107a, and a slide rail 107c is arranged on the inner wall of the installation box 102, and through the cooperation between the slider 107b and the slide rail 107c, the second rack 107a and the connecting plate 107d are more stable when moving forward, thereby ensuring the forward movement. The forward pushing force will not change, and a connecting plate 107d is provided at one end of the second rack 107a. Through the setting of the connecting plate 107d, the second rack 107a is effectively connected to the knocking panel 107e, so that when the second rack 107a moves forward, the connecting plate 107d is pushed forward, and then the knocking panel 107e is driven forward, so that the knocking panel 107e is moved out of the installation box 102, and a knocking panel 107e is provided at one end of the connecting plate 107d. Through the setting of the knocking panel 107e, the knocking area of ​​the knocking wrench is increased, which is convenient for the staff to perform the knocking operation, thereby ensuring the normal operation of the bolt installation or disassembly.

[0041] Preferably, a second limiting groove 107d-1 is opened on the inner top of the installation box 102, and the second limiting groove 107d-1 is adapted to the connecting plate 107d. A placement groove 107e-1 is opened on one side of the installation box 102, and the placement groove 107e-1 is slidably connected to the knocking panel 107e. By opening the second limiting groove 107d-1 and the placement groove 107e-1, the connecting plate 107d and the knocking panel 107e can be better moved inside the installation box 102.

[0042] Furthermore, a second rotating rod 108a is provided on one side of the coordination gear 105d, and the second rotating rod 108a passes through the installation box 102. Through the setting of the second rotating rod 108a, it is convenient for the staff to manually drive the coordination gear 105d to rotate, so as to realize the continuous movement of the second rack 107a, and ensure that the knocking panel 107e can adjust the sliding area according to the model size of the knocking wrench 101, so as to facilitate the staff to operate better. A second spring 108b is provided on the second rotating rod 108a, and a second turning handle 108c is provided at one end of the second rotating rod 108a. Through the setting of the second turning handle 108c, it is convenient to drive the second rotating rod 108a to rotate;

[0043] It is worth noting that: an adjusting disk 108d is provided on the middle section of the second rotating rod 108a, and the two ends of the second spring 108b are respectively connected to the adjusting disk 108d and the installation box 102. Through the setting of the adjusting disk 108d, the length of the second rotating rod 108a pulled out of the installation box 102 can be effectively determined, so that the coordination gear 105d can effectively and fully engage with the second rack 107a and separate from the first rack 105c. At the same time, after the staff pulls the second rotating rod 108a outward, the elastic force of the second spring 108b can be used to move the adjusting disk 108d to one side of the first rack 105c, thereby driving the second rotating rod 108a to move synchronously, so that the coordination gear 105d on one side of the second rotating rod 108a moves synchronously, so that the coordination gear 105d contacts the first rack 105c.

[0044] When in use, first, under the cooperation between the coordinating gear 105d and the second rack 107a, when the coordinating gear 105d rotates, it drives the second rack 107a to move forward. Driven by the second rack 107a, the second rack 107a moves forward. When the second rack 107a moves forward, it pushes the connecting plate 107d to move forward, and then drives the knocking panel 107e on one side of the connecting plate 1007d to move forward, so that the knocking panel 107e is moved out of the installation box 102, so that the knocking area of ​​the knocking wrench is increased, which is convenient for the staff to perform the knocking operation, thereby ensuring the normal operation of the bolt installation or removal. When the knocking wrench 101 is replaced with a larger model, the rotation of the coordinating gear 105d is not enough to make the knocking panel 107e move completely outward. The staff needs to pull the second handle 108c, thereby driving the second rotating rod 108a to move out of the installation box 102, so that the coordination gear 105d on one side of the second rotating rod 108a moves synchronously, so that the coordination gear 105d is no longer engaged with the first rack 105c, and is fully engaged with the second rack 107a. Then the second turning handle 108c is rotated, and the second rotating rod 108a is driven to rotate coaxially under the rotation of the second turning handle 108c, thereby driving the coordination gear 105d to rotate further, so that the second rack 107a can move further forward, pushing the connecting plate 107d and the knocking panel 107e to move forward, so that the knocking panel 107e can slide out a larger area, so that the knocking panel 107e can adapt to different models of knocking wrenches 101.

[0045] Example 3

[0046] Reference Figure 6, which is the second embodiment of the utility model. This embodiment is based on the previous embodiment, and is different from the previous embodiment in that a fixing block 109b is provided on the outer wall of the installation box 102. The setting of the fixing block 109b facilitates the setting of the sleeve 109c. A sleeve 109c is provided on one side of the fixing block 109b. A third spring 109d is provided inside the sleeve 109c. A fixing rod 109e is provided at one end of the third spring 109d. An auxiliary block 109f is provided on the fixing rod 109e. A limiting hole 109a is provided on the first rotating rod 104b. The fixing rod 109e is movably inserted into the limiting hole 109 In a, through the setting of the third spring 109d, the elastic force can be restored without the influence of external force, so that the fixed rod 109e on one side of the third spring 109d slides toward the end away from the sleeve 109c, and then limits the first rotating rod 104b in the limiting hole 109a opened on the first rotating rod 104b, so that the right-angle plate 106a can limit and fix the second rotating rod 104b after it is in contact with the bottom of the knock wrench 101, so as to avoid the second rotating rod 104b from flipping over after adjustment, thereby releasing the limiting fixation of the knock wrench 101 and ensuring the limiting and stability of the knock wrench 101.

[0047] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and ratio of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present utility model. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also an equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0048] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0049] It should be understood that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but for those of ordinary skill having the benefit of this disclosure, without undue experimentation, the development effort will be a routine task of design, fabrication, and production.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A percussion wrench capable of increasing the force bearing area, characterized in that: The invention comprises an adjustment component (100), comprising a striking wrench (101), wherein a mounting box (102) is movably sleeved on the striking wrench (101), a fixing member (103) is arranged inside the mounting box (102), an adjusting member (104) is arranged on the fixing member (103), a moving member (105) is arranged on the adjusting member (104), a placing member (106) is arranged on the top of the moving member (105), and a pushing member (107) is arranged on one side of the moving member (105).

2. The percussion wrench capable of increasing the force bearing area according to claim 1, characterized in that: A fixing seat (103a) is arranged at the inner bottom of the installation box (102), a supporting frame (103b) is symmetrically arranged on the top of the fixing seat (103a), a limiting ring (103c) is arranged between the two supporting frames (103b), and a first limiting groove (103d) is symmetrically opened on the inner wall of the limiting ring (103c).

3. The percussion wrench capable of increasing the force bearing area according to claim 2, characterized in that: A first bevel gear (104a) is arranged on the fixing seat (103a), a first rotating rod (104b) is arranged on one side of the first bevel gear (104a), the first rotating rod (104b) passes through the installation box (102), and a first rotating handle (104c) is arranged at one end of the first rotating rod (104b).

4. The percussion wrench capable of increasing the force bearing area according to claim 3, characterized in that: The first bevel gear (104a) is meshedly connected with a second bevel gear (104d), and the second bevel gear (104d) is provided with a connecting rod (104e).

5. The percussion wrench capable of increasing the force bearing area according to claim 4, characterized in that: The movable member (105) comprises an adjusting column (105a) arranged on the connecting rod (104e), a limiting plate (105b) is symmetrically arranged on the adjusting column (105a), the limiting plate (105b) is adapted to the first limiting groove (103d), a first rack (105c) is arranged on the outer side of the adjusting column (105a), and a coordinating gear (105d) is meshedly connected to the first rack (105c).

6. The percussion wrench capable of increasing the force bearing area according to claim 5, characterized in that: The placement piece (106) comprises a right-angle plate (106a) arranged at the top of the adjustment column (105a), a first spring (106b) is arranged on one side of the right-angle plate (106a), a clamping plate (106c) is arranged at one end of the first spring (106b), and the top of the clamping plate (106c) is arranged in an arc shape.

7. The percussion wrench capable of increasing the force bearing area according to claim 5, characterized in that: The pushing member (107) comprises a second rack (107a) arranged on the coordination gear (105d), a slider (107b) is arranged on one side of the second rack (107a), a slide rail (107c) is arranged on the inner wall of the installation box (102), a connecting plate (107d) is arranged at one end of the second rack (107a), and a knocking panel (107e) is arranged at one end of the connecting plate (107d).

8. The percussion wrench capable of increasing the force bearing area according to claim 7, characterized in that: A second limiting groove (107d-1) is provided on the inner top of the installation box (102), and the second limiting groove (107d-1) is adapted to the connecting plate (107d); A placement groove (107e-1) is provided on one side of the installation box (102), and the placement groove (107e-1) is slidably connected to the knocking panel (107e).

9. The percussion wrench capable of increasing the force bearing area according to claim 7, characterized in that: A second rotating rod (108a) is arranged on one side of the coordination gear (105d), the second rotating rod (108a) passes through the installation box (102), a second spring (108b) is arranged on the second rotating rod (108a), a second rotating handle (108c) is arranged at one end of the second rotating rod (108a), an adjusting disk (108d) is arranged in the middle section of the second rotating rod (108a), and two ends of the second spring (108b) are respectively connected to the adjusting disk (108d) and the installation box (102).

10. The percussion wrench capable of increasing the force bearing area according to claim 9, characterized in that: A fixing block (109b) is arranged on the outer wall of the installation box (102), a sleeve (109c) is arranged on one side of the fixing block (109b), a third spring (109d) is arranged inside the sleeve (109c), a fixing rod (109e) is arranged at one end of the third spring (109d), and an auxiliary block (109f) is arranged on the fixing rod (109e); A limiting hole (109a) is provided on the first rotating rod (104b), and the fixing rod (109e) is movably inserted into the limiting hole (109a).

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