Handheld impact wrench

Abstract

The utility model relates to the technical field of electric tools, in particular to a handheld impact wrench which comprises a body, and a handle structure is detachably arranged on the body. The holding hoop is arranged on the body in a sleeving mode, the locking piece is used for locking the holding hoop to enable the holding hoop to be fixed to the body, and the handrail is arranged on the locking piece. The high-power impact wrench has the advantages that the holding stability can be guaranteed when the high-power impact wrench works, and therefore the effect of a wrench hole is guaranteed.

Description

Technical Field

[0001] This application relates to the technical field of power tools, and in particular to a handheld impact wrench. Background Technology

[0002] A handheld electric impact wrench is a power tool that combines rotation and impact force, primarily used for making wrench holes in hard materials such as concrete and masonry. Its core structure includes the following parts:

[0003] Electric motor: Provides power, usually a DC or AC motor, and the power determines the speed and torque.

[0004] Transmission mechanism: including gear set, which transmits motor power to the wrench head; some models support speed adjustment function.

[0005] Impact mechanism: It generates axial impact force through mechanical or electromagnetic devices (such as pendulum, spring or cam) to assist the wrench head in breaking hard materials.

[0006] Chuck (wrench head clamp): Used to fix the wrench head, common types are key chuck or self-tightening quick-change chuck.

[0007] Shell and grip: Made of engineering plastic or rubber for stable grip; some models are equipped with auxiliary side grips.

[0008] Power supply and control system: including power cord (wired) or battery pack (wireless), switch, speed / power adjustment buttons, etc.

[0009] As the power of power tools increases, the impact frequency and single impact energy of impact wrenches increase significantly. While this improves the efficiency of the wrench hole, it also brings the following problems: the impact force applied to the material by the impact mechanism is transmitted to the tool body in the form of a reaction force. The greater the power, the stronger the impact force, and the greater the reaction force, which in turn leads to unstable grip by the operator. Utility Model Content

[0010] To address the aforementioned technical problems, this application provides a handheld impact wrench that ensures stable gripping during operation of a high-power impact wrench, thereby guaranteeing the wrench hole effect.

[0011] To achieve the above objectives, the technical solution of this utility model is as follows:

[0012] A handheld impact wrench includes a body, on which a handle structure is detachably provided;

[0013] The handrail structure includes a clamping hoop fitted on the body and a locking member for locking the clamping hoop to fix it on the body, as well as a handrail set on the locking member.

[0014] The above technical solution is achieved by fixing the clamping hoop to the main body through a locking component, thereby fixing the handrail to the main body. This allows the operator to hold the main body with one hand and the handrail with the other, ensuring the stability of the impact wrench during operation and thus guaranteeing the wrench hole effect.

[0015] As a preferred embodiment of this application, the locking component includes a locking bolt, a clamping nut screwed onto the locking bolt, an open clamping hoop with locking lugs at both open ends, two locking lugs fitted onto the locking bolt, and a handgrip fitted onto the locking bolt.

[0016] The above technical solution is achieved by rotating and tightening the nut, thereby gradually reducing the distance between the two locking lugs, so that the clamping hoop is tightly fixed to the body, thus ensuring the stability of the hand glove set on the locking bolt, and thus ensuring the stability of the person holding it.

[0017] As a preferred embodiment of this application, each of the lock lugs is fixedly engaged with an abutment ring, and a pair of positioning rings are provided on the handrail. The two positioning rings are respectively located on the outside of the two lock lugs, and the clamping nut is pressed against one of the positioning rings.

[0018] The above technical solution achieves the following: when the nut is tightened, the positioning ring of the handrail is squeezed, and then the abutment ring is pressed, thereby increasing the force-bearing area of ​​the locking lug of the clamping hoop, thus preventing point and line stress, and ensuring service life and locking stability.

[0019] As a preferred embodiment of this application, a plurality of positioning protrusions are provided at the contact surface between the abutting ring and the positioning ring. The plurality of positioning protrusions are equally spaced along the circumferential direction of the end face of the abutting ring, and a positioning groove is provided on the positioning protrusion for the positioning protrusion to engage with it.

[0020] The above technical solution ensures that when the clamping nut tightens the clamping hoop, the abutment ring and the positioning ring are limited and fixed by the positioning boss and the positioning groove, thereby preventing the positioning ring from rotating and preventing the handrail from rotating around the locking bolt, thus ensuring the stability of the grip. At the same time, the clamping nut can be loosened, and the handrail can be rotated around the locking bolt at a certain angle. Then, the clamping nut will tighten the positioning ring and the abutment ring, thereby completing the locking. This allows the angle of the handrail to be adjusted and locked, making it convenient for personnel to use.

[0021] As a preferred embodiment of this application, an abutment spring is provided between the two abutment rings.

[0022] The above technical solution ensures that the two positioning rings of the handrail abut against the end caps of the clamping nut and locking bolt under the action of the abutment spring, thereby ensuring that the positioning rings and locking lugs can move in time when the clamping nut rotates, thus ensuring the timeliness and convenience of locking and unlocking.

[0023] As a preferred embodiment of this application, the main body is provided with a positioning ring groove for the clamping hoop to be fitted, and the clamping hoop is disposed in the positioning ring groove.

[0024] The above technical solution ensures that the handrail remains stationary on the main body, guaranteeing stability. It can rotate around the positioning ring groove and then lock, thereby adjusting the angle of the handrail to meet different usage needs.

[0025] As a preferred embodiment of this application, the top of the main body is detachably provided with a lifting ring.

[0026] The above technical solution enables the addition of slings to the lifting rings for use in different environments, thus helping to ensure the stability of the device.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. After the clamping ring is fixed to the main body by the locking device, the handrail is fixed to the main body, so that the person can hold the main body with one hand and the handrail with the other hand, thereby ensuring the stability of the impact wrench when it is working and ensuring the wrench hole effect.

[0029] 2. Even when tightening the nut, the positioning ring of the handrail will be squeezed, and then the pressing abutment ring platform will be tightened, thereby increasing the force-bearing area of ​​the locking lug of the clamping hoop, thus preventing point and line stress, thereby ensuring service life and locking stability. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0032] Figure 2 This is a perspective view of an embodiment of this application.

[0033] Figure 3 This is a schematic diagram of the handle structure in an embodiment of this application.

[0034] Figure 4 This is a cross-sectional view of the handle structure in an embodiment of this application.

[0035] Reference numerals: 1. Body; 11. Positioning ring groove; 2. Handrail structure; 21. Clamping hoop; 211. Locking lug; 22. Handrail; 221. Positioning ring; 23. Locking bolt; 24. Compression nut; 25. Abutment ring platform; 251. Positioning boss; 26. Abutment spring; 3. Lifting ring. Detailed Implementation

[0036] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0037] This application discloses a handheld impact wrench. (Refer to...) Figure 1 A handheld impact wrench includes a body 1, on which a handle structure 2 is detachably provided.

[0038] The handle structure 2 includes a clamping hoop 21 fitted onto the body 1, a locking member for locking the clamping hoop 21 to fix it onto the body 1, and a handrail 22 mounted on the locking member. That is, after the clamping hoop 21 is fixed to the body 1 by the locking member, the handrail 22 is also fixed to the body 1, allowing the operator to hold the body 1 with one hand and the handrail 22 with the other, thus ensuring the stability of the impact wrench during operation and guaranteeing the wrench hole effect.

[0039] The locking mechanism includes a locking bolt 23 with a clamping nut 24 screwed onto it. A clamping hoop 21 is open, with locking lugs 211 at both ends. The two lugs 211 are fitted onto the locking bolt, and the handrail 22 is fitted onto the locking bolt. By rotating the clamping nut 24, the distance between the two lugs 211 is gradually reduced, thus securing the clamping hoop 21 tightly to the body 1. This ensures the stability of the handrail 22 fitted onto the locking bolt and guarantees a stable grip. To further ensure the stability of the clamping hoop 21, the body 1 has a positioning ring groove 11 for the clamping hoop 21 to fit into. The clamping hoop 21 is positioned within the positioning ring groove 11, keeping the handrail 22 stationary on the body 1. While ensuring stability, it can rotate around the positioning ring groove 11 and lock, allowing adjustment of the handrail 22's angle to meet different usage requirements.

[0040] To ensure the stability and service life of the clamping hoop 21 under stress, each locking lug 211 is secured with an abutment ring 25. A pair of positioning rings 221 are provided on the handrail 22, with each positioning ring 221 positioned on the outside of the two locking lugs 211. The clamping nut 24 presses against one of the positioning rings 221. Thus, when the clamping nut 24 is tightened, the positioning ring 221 of the handrail 22 is compressed, and then the abutment ring 25 is pressed, thereby increasing the stress area of ​​the locking lugs 211 of the clamping hoop 21, preventing point or line stress, and ensuring service life and locking stability. To further ensure stability, an abutment spring 26 is provided between the two abutment rings 25. Under the action of the abutment spring 26, the two positioning rings 221 of the handrail 22 abut against the end caps of the clamping nut 24 and the locking bolt, ensuring that the positioning rings 221 and locking lugs 211 can move promptly when the clamping nut 24 rotates, thus ensuring timely and convenient locking and unlocking.

[0041] A plurality of positioning protrusions 251 are provided at the contact surface between the abutting ring 25 and the positioning ring 221. These protrusions are evenly spaced along the circumference of the end face of the abutting ring 25, and each protrusion has a positioning groove for engaging with the positioning protrusion 251. This ensures that when the clamping nut 24 tightens the clamping band 21, the abutting ring 25 and the positioning ring 221 are limited and fixed by the positioning protrusions 251 and the positioning grooves, preventing the positioning ring 221 from rotating and preventing the handrail 22 from rotating around the locking bolt, thus ensuring the stability of the grip. Simultaneously, the clamping nut 24 can be loosened, and the handrail 22 can be rotated around the locking bolt by a certain angle. The clamping nut 24 then tightens the positioning ring 221 and the abutting ring 25, thus locking the handrail 22. This allows the angle of the handrail 22 to be adjusted and locked, facilitating its use.

[0042] The top of the main body 1 is detachably equipped with a lifting ring 3. This allows for the addition of a sling to the lifting ring 3 for use in different environments, thus helping to ensure the stability of the main body 1.

[0043] The implementation principle of a handheld impact wrench in this application embodiment is as follows: after the clamping hoop 21 is fixed to the body 1 by the locking member, the handle 22 is fixed to the body 1, so that the person can hold the body 1 with one hand and the handle 22 with the other hand, thereby ensuring the stability of the impact wrench when it is working, and thus ensuring the wrench hole effect.

[0044] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A handheld impact wrench, characterized in that: Includes a body (1), on which a handle structure (2) is detachably provided; The handrail structure (2) includes a clamping hoop (21) sleeved on the body (1) and a locking member for locking the clamping hoop (21) to fix it on the body (1), and a handrail (22) provided on the locking member; The locking component includes a locking bolt (23), a clamping nut (24) is screwed onto the locking bolt, the clamping hoop (21) is open, the clamping hoop (21) is provided with locking lugs (211) at both open ends, the two locking lugs (211) are fitted onto the locking bolt, and the handrail (22) is fitted onto the locking bolt.

2. The handheld impact wrench according to claim 1, characterized in that: Each of the lock lugs (211) is fixed with an abutment ring platform (25), and a pair of positioning rings (221) are provided on the handrail (22). The two positioning rings (221) are respectively located on the outside of the two lock lugs (211), and the clamping nut (24) is pressed on one of the positioning rings (221).

3. A handheld impact wrench according to claim 2, characterized in that: A plurality of positioning protrusions (251) are provided at the contact surface between the abutting ring platform (25) and the positioning ring (221). The plurality of positioning protrusions (251) are arranged at equal intervals along the circumferential direction of the end face of the abutting ring platform (25). The positioning protrusions are provided with positioning grooves for the positioning protrusions (251) to engage and engage.

4. A handheld impact wrench according to claim 3, characterized in that: An abutment spring (26) is provided between the two abutment rings (25).

5. A handheld impact wrench according to claim 1, characterized in that: The main body (1) is provided with a positioning ring groove (11) for the clamping hoop (21) to be fitted, and the clamping hoop (21) is set in the positioning ring groove (11).

6. A handheld impact wrench according to claim 1, characterized in that: The top of the main body (1) is detachably equipped with a lifting ring (3).

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