Ratchet wrench capable of preventing hand from falling off

Abstract

The utility model discloses an anti-release ratchet wrench which comprises a machine body, a handle is fixedly connected to the machine body and comprises a fixed part and a movable part, air cushions are fixedly connected to the inner wall of the fixed part and the inner wall of the movable part, a gap is formed between the two layers of air cushions, and when the movable part slides, the gap is enlarged, and therefore when the ratchet wrench is used, the handle is not prone to falling off. The movable part slides outwards, the gap is enlarged, the hand is smoothly inserted into the gap, the thorn hand slides inwards to the movable part, the gap is reduced, the air cushion abuts against the hand and deforms, counter-acting force is generated on the hand, the hand is clamped in the gap, and therefore the effect of releasing the hand is effectively achieved.

Description

Technical Field

[0001] The utility model belongs to the field of wrench tools and relates to a brushless ratchet wrench, in particular to a lithium-powered brushless ratchet wrench. Background Art

[0002] A ratchet wrench is a manual screw tightening tool. Single-head and double-head ratchet wrenches with multiple specifications and adjustable handles (fixed holes) are composed of main and secondary plum blossom sleeves of different specifications and sizes connected by the female and male keys of the hinge key. Since a plum blossom sleeve has two specifications of plum blossom-shaped through holes, it can be used to tighten and loosen screws of two specifications, thereby expanding the scope of use and saving raw materials and labor costs.

[0003] For example, the ratchet wrench with publication number CN218018221U includes a wrench body and a ratchet. The wrench body has a working end, and the working end has a first end face and a second end face relative to each other. A through groove is provided on the working end, which passes through the first end face and the second end face. The ratchet is arranged in the through groove and has a first tool groove and a second tool groove that are interconnected and formed on the two end faces respectively. The first tool groove is configured to correspond to the first end face and has a first stop face, and the second tool groove is configured to correspond to the second end face and has a second stop face. The workpiece can be selectively accommodated in the first tool groove or the second tool groove, so that the top surface abuts the first stop face or the second stop face; thus, the ratchet wrench can be used on both sides, and the workpiece will not protrude from the working end, making it easy to operate.

[0004] However, the above brushless ratchet wrench may have uncontrollable torque during use, and when the torque is uncontrollable, it is easy for the wrench to slip out of the hand and cause harm to the human body. Utility Model Content

[0005] The utility model provides a hand-proof ratchet wrench, which can prevent a brushless ratchet wrench from being slipped out of the hand.

[0006] The technical solution adopted by the present invention to solve the above technical problems is: an anti-slip ratchet wrench, including a body, a handle fixedly connected to the body, the handle including a fixed part and a movable part slidably connected to the fixed part, air cushions are fixedly connected to the inner walls of the fixed part and the movable part, there is a gap between the two layers of the air cushions, when the movable part slides, the gap becomes larger.

[0007] A further preferred technical solution of the present invention is that an adjustment cavity is present in each of the air cushions.

[0008] A further preferred technical solution of the present invention is that a plurality of through holes communicating with the adjustment cavity are provided on the air cushion on the movable part.

[0009] A further preferred technical solution of the present invention is that the through hole is opened on the side wall of the air cushion.

[0010] A further preferred technical solution of the present invention is that: both ends of the movable part close to the fixed part are fixedly connected with connecting blocks, the fixed part is provided with a mounting groove, and the connecting blocks are located in the mounting groove and slide.

[0011] A further preferred technical solution of the present invention is: a clamping block is fixedly connected to the connecting block, and a clamping slot 1 and a clamping slot 2 are provided on the inner side wall of the installation slot. When the clamping block is inserted into the clamping slot 1, the movable part abuts against the fixed part and the gap is minimized. When the clamping block is inserted into the clamping slot 2, the two ends of the movable part are separated from the two ends of the fixed part and the gap becomes larger.

[0012] A further preferred technical solution of the present invention is that the clamping block, the first clamping slot and the second clamping slot are all provided with arc-shaped surfaces.

[0013] A further preferred technical solution of the present invention is: a groove is provided on the inner bottom surface of each installation slot, a spring having one end fixedly connected to the connecting block is fixedly connected in the groove, and when the clamping block is clamped with the second clamping slot, the spring is deformed.

[0014] A further preferred technical solution of the present invention is that a gripping groove is provided on the movable portion.

[0015] Compared with the prior art, the present invention includes a body, on which a handle is fixedly connected, the handle including a fixed part and a movable part, air cushions are fixedly connected to the inner walls of the fixed part and the movable part, and there is a gap between the two layers of air cushions. When the movable part slides, the gap becomes larger. Therefore, when using the ratchet wrench, the movable part is slid outward, and the gap becomes larger, and the hand is smoothly inserted into the gap. The hand slides the movable part inward to reduce the gap. At this time, the air cushion abuts against the hand and sends deformation, generating a reaction force on the hand, thereby jamming the hand in the gap, thereby effectively releasing the hand. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be described in further detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and should not be construed as limiting the scope of the present invention. Furthermore, unless otherwise specified, the drawings are merely schematic representations of the composition or structure of the depicted objects and may contain exaggerated representations. Furthermore, the drawings are not necessarily drawn to scale.

[0017] Figure 1 This is the overall structural diagram of the utility model;

[0018] Figure 2 The explosion of the utility model Figure 1 ;

[0019] Figure 3 The explosion of the utility model Figure 2 ;

[0020] Figure 4 This is a cross-sectional view of the utility model Figure 1 ;

[0021] Figure 5 This is a cross-sectional view of the utility model Figure 2 .

[0022] In the figure: 1. Fixed part; 2. Movable part; 3. Gap; 4. Air cushion; 5. Through hole; 6. Connecting block; 7. Clamping block; 8. Body; 9. Holding slot; 10. Mounting slot; 11. Clamping slot 1; 12. Clamping slot 2; 13. Adjustment chamber; 14. Spring; 15. Groove. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely illustrative and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0024] It should be noted that like reference numerals denote like items in the following drawings, and thus, once an item is defined in one drawing, it may not be further defined or explained in subsequent drawings.

[0025] Figure 1 As shown, a ratchet wrench that prevents the hand from slipping out includes a body 8, a handle fixedly connected to the body 8, the handle including a fixed part 1 and a movable part 2 slidably connected to the fixed part 1, air cushions 4 are fixedly connected to the inner walls of the fixed part 1 and the movable part 2, and there is a gap 3 between the two layers of air cushions 4. When the movable part 2 slides, the gap 3 becomes larger.

[0026] Figure 1 As shown, when using the ratchet wrench, slide the movable part 2. At this time, the gap 3 gradually becomes larger as the movable part 2 slides, which makes it easier for the hand to be inserted into the gap 3. Thereafter, slide the movable part 2 inward. At this time, the gap 3 gradually decreases and the air cushion 4 forms abutment with the hand. As the gap 3 gradually decreases, the air cushion 4 is deformed due to extrusion, and at the same time, a reverse force is applied to the hand, thereby trapping the hand in the gap 3. This design can effectively prevent the ratchet wrench from slipping out of the hand. At the same time, the movable part 2 and the fixed part 1 can also restrict the hand, reducing the probability of slipping out of the hand, thereby making the use of the ratchet wrench more convenient and safer.

[0027] Figure 2-Figure 5As shown, there is an adjustment cavity 13 in each air cushion 4, and a plurality of through holes 5 communicating with the adjustment cavity 13 are provided on the air cushion 4 on the movable part 2. When the air cushion 4 is deformed, the through holes 5 can adjust the pressure between the adjustment cavity 13 and the outside, thereby preventing the air cushion 4 from exerting excessive force on the hand and causing discomfort to the hand.

[0028] Figure 1 As shown, the through hole 5 is opened on the side wall of the air cushion 4, which can prevent the through hole 5 from being blocked when the air cushion 4 comes into contact with the hand.

[0029] Figure 1-Figure 3 As shown, the movable part 2 is fixedly connected to connecting blocks 6 at both ends close to the fixed part 1. A mounting groove 10 is provided on the fixed part 1, and the connecting blocks 6 slide in the mounting groove 10. This design serves to connect the movable part 2 and the fixed part 1.

[0030] Figure 1-Figure 4 As shown, a clamping block 7 is fixedly connected to the connecting block 6, and a clamping slot 11 and a clamping slot 2 12 are provided on the inner side wall of the mounting slot 10. When the clamping block 7 is inserted into the clamping slot 11, the movable part 2 abuts against the fixed part 1 and the gap 3 is minimized. When the clamping block 7 is inserted into the clamping slot 2 12, the two ends of the movable part 2 are separated from the two ends of the fixed part 1 and the gap 3 becomes larger.

[0031] Figure 1-Figure 4 As shown, when it is necessary to hold the ratchet wrench, the movable part 2 is pulled outward, and the block 7 is separated from the first slot 11 and stuck in the second slot 12. At this time, the movable part 2 is separated from the fixed part 1, and the gap 3 becomes larger, which makes it easier for the hand to be inserted into the handle for holding. Thereafter, the movable part 2 is pressed again, and the block 7 is separated from the second slot 12 and stuck in the first slot 11. At the same time, the gap 3 becomes smaller, so that the hand is stuck between the movable part 2 and the fixed part 1. This design plays a role in adjusting the movable part 2 and fixing it after adjustment, thereby preventing the movable part 2 from sliding during use.

[0032] Figure 1-Figure 4 As shown, the card block 7 , the card slot 1 11 and the card slot 2 12 are all provided with arc surfaces, which can facilitate the card block 7 to be inserted into the card slot 1 11 or the card slot 2 12 , and also facilitate the card block 7 to be separated from the card slot 1 11 or the card slot 2 12 .

[0033] Figure 1-Figure 4 As shown, a groove 15 is provided on the inner bottom surface of each mounting groove 10, and a spring 14 is fixedly connected to the groove 15 at one end thereof and fixedly connected to the connecting block 6. When the clamping block 7 is engaged with the second clamping groove 12, the spring 14 is deformed. Therefore, when the force pulling the movable part 2 outward disappears, the deformed spring 14 can exert a force on the movable part 2, thereby making it more labor-saving and convenient to push the movable part 2 to reset.

[0034] Figure 1As shown, the movable part 2 is provided with a gripping groove 9, which can facilitate the hand to apply force to the movable part 2, thereby driving it to slide.

[0035] The above describes the anti-slip ratchet wrench provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The above examples are merely intended to help understand the present invention and its core concept. It should be noted that those skilled in the art may make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications fall within the scope of protection of the claims of the present invention.

Claims

1. A ratchet wrench that prevents slipping of the hand, comprising a body, characterized in that a handle is fixedly connected to the body, the handle comprising a fixed portion and a movable portion slidably connected to the fixed portion, air cushions are fixedly connected to the inner walls of both the fixed portion and the movable portion, a gap exists between the two layers of the air cushions, and the gap becomes larger when the movable portion slides.

2. The anti-drop ratchet wrench according to claim 1, characterized in that: There is an adjustment chamber in each of the air cushions.

3. The anti-drop ratchet wrench according to claim 2, characterized in that: The air cushion on the movable part is provided with a plurality of through holes communicating with the regulating cavity.

4. The anti-drop ratchet wrench according to claim 3, characterized in that: The through hole is opened on the side wall of the air cushion.

5. The anti-drop ratchet wrench according to claim 1, characterized in that: The movable part is fixedly connected with connecting blocks at both ends close to the fixed part. The fixed part is provided with a mounting groove, and the connecting blocks are located in the mounting groove and slide.

6. The anti-drop ratchet wrench according to claim 5, characterized in that: A clamping block is fixedly connected to the connecting block, and a clamping slot 1 and a clamping slot 2 are provided on the inner side wall of the installation slot. When the clamping block is inserted into the clamping slot 1, the movable part abuts against the fixed part and the gap is minimized. When the clamping block is inserted into the clamping slot 2, the two ends of the movable part are separated from the two ends of the fixed part and the gap becomes larger.

7. The anti-drop ratchet wrench according to claim 6, characterized in that: The clamping block, the first clamping slot and the second clamping slot are all provided with arc surfaces.

8. The anti-drop ratchet wrench according to claim 6, characterized in that: A groove is provided on the inner bottom surface of each installation slot, and a spring with one end fixedly connected to the connecting block is fixedly connected in the groove. When the clamping block is clamped with the second clamping slot, the spring is deformed.

9. The anti-drop ratchet wrench according to claim 1, characterized in that: A gripping groove is provided on the movable part.

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