Lithium battery brushless ratchet wrench

Abstract

The lithium battery brushless ratchet wrench comprises a machine body and a handle fixedly connected with the machine body, a mounting groove is formed in the handle, a pressing plate is slidably connected into the mounting groove, the mounting groove is located below the pressing plate and rotatably connected with two rotating plates, one end of each rotating plate abuts against the bottom face of the pressing plate, and the other end of each rotating plate abuts against the bottom face of the pressing plate. The other end of the rotating plate is rotationally connected with a protection plate, the free end of the protection plate extends out of the mounting groove, and a holding groove is formed between the two protection plates and the pressing plate, so that when the ratchet wrench is used, the handle is held, the pressing plate moves downwards and pushes the rotating plate to rotate, and the rotating plate drives the protection plate to slide out of the mounting groove to wrap the hand. And when the torque of the ratchet wrench is large, the ratchet wrench can be better held, and the ratchet wrench is prevented from slipping out of the hand.

Description

Technical Field

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

[0002] A ratchet wrench is a manual screw tightening tool. It is a single-head, double-head, and multi-specification movable handle ratchet wrench (fixed hole) that is composed of a main plum blossom sleeve and a slave plum blossom sleeve 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 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, a ratchet wrench with publication number CN218018221U includes a wrench body and a ratchet, the wrench body has a working end, the working end has a first end face and a second end face opposite to each other, a through groove penetrating the first end face and the second end face is provided at the working end, the ratchet is arranged in the through groove and a first tool groove and a second tool groove that are interconnected are formed on the two end faces respectively, the first tool groove is arranged corresponding to the first end face and has a first stop face, the second tool groove is arranged corresponding 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, and the top face abuts against 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 and can be easily operated.

[0004] However, the above brushless ratchet wrench has a situation where the torque is uncontrollable when in use. When the torque is uncontrollable, it is easy to slip out of the hand and cause damage to the hot plate. Utility Model Content

[0005] The utility model provides a lithium-electric brushless ratchet wrench, which can prevent the brushless ratchet wrench from slipping out of the hand.

[0006] The technical solution adopted by the utility model to solve the above technical problems is: a lithium-powered brushless ratchet wrench, comprising a body and a handle fixedly connected to the body, the handle being provided with a mounting groove, a pressing plate being slidably connected in the mounting groove, the mounting groove being located below the pressing plate and rotatably connected to two rotating plates, one end of the rotating plate being in contact with the bottom surface of the pressing plate, the other end of the rotating plate being rotatably connected to a protective plate, the free end of the protective plate extending out of the mounting groove, a gripping groove being formed between the two protective plates and the pressing plate, when the handle is gripped, the pressing plate drives the rotating plate to move, at which time the protective plate slides out of the mounting groove and the hand is located in the gripping groove.

[0007] A further preferred technical solution of the utility model is: a plurality of rotating shafts are fixedly connected in the installation groove, and the rotating plate is rotatably connected to the rotating shafts.

[0008] A further preferred technical solution of the utility model is: a torsion spring is sleeved on the rotating shaft, and when the rotating plate rotates, the torsion spring is deformed.

[0009] A further preferred technical solution of the utility model is: the protective plate includes a flat plate and an arc plate integrally formed with the flat plate, the arc plate is located outside the mounting groove, the flat plate is rotatably connected to the rotating plate, and when the flat plate rotates, the arc plate slides out of the mounting groove.

[0010] A further preferred technical solution of the utility model is: a movable cavity is formed between the pressing plate and the bottom surface of the installation groove, the rotating plate is located in the movable cavity, and a spring for pushing the pressing plate to slide is fixedly connected in the movable cavity. When the pressing plate slides into the installation groove, the movable cavity becomes smaller and the spring is deformed.

[0011] A further preferred technical solution of the utility model is that two springs are provided.

[0012] A further preferred technical solution of the utility model is: a protective sheet is fixedly connected to the inner side wall of the arc-shaped plate.

[0013] A further preferred technical solution of the utility model is that the protective sheet is elastic.

[0014] A further preferred technical solution of the utility model is that a plurality of pressing grooves are provided on the pressing plate.

[0015] A further preferred technical solution of the utility model is: the flat plate is fixedly connected to a limiting block at one end close to the rotating plate.

[0016] Compared with the prior art, the utility model includes a body and a handle fixedly connected to the body, the handle is provided with a mounting groove, a pressing plate is slidably connected in the mounting groove, the mounting groove is located below the pressing plate and is rotatably connected to two rotating plates, one end of the rotating plate is in contact with the bottom surface of the pressing plate, and the other end of the rotating plate is rotatably connected to a protective plate, the free end of the protective plate extends out of the mounting groove, and a gripping groove is formed between the two protective plates and the pressing plate. Therefore, when using the ratchet wrench, the gripping handle moves the pressing plate downward and pushes the rotating plate to rotate. At this time, the rotating plate drives the protective plate to slide out of the mounting groove and wrap the hand, thereby making the ratchet wrench more stable when held, and when the torque of the ratchet wrench is large, it can be better gripped to avoid slipping out of the hand. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be described in further detail below in conjunction with the accompanying drawings and preferred embodiments, but those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be used as a limitation on the scope of the present invention. In addition, unless otherwise specified, the drawings are only schematically representing the composition or structure of the described object and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0018] Figure 1 The overall structure of the utility model Figure 1 ;

[0019] Figure 2 The overall structure of the utility model Figure 2 ;

[0020] Figure 3 It is a cross-sectional view of the utility model;

[0021] Figure 4 For this utility model Figure 4 Enlarged view of point A in the middle.

[0022] In the figure: 1. body; 2. handle; 3. pressing plate; 4. pressing groove; 5. arc plate; 6. holding groove; 7. protective sheet; 8. spring; 9. rotating plate; 10. rotating shaft; 11. torsion spring; 12. movable cavity; 13. flat plate; 14. mounting groove; 15. limit block. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It will be appreciated by those skilled in the art 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 similar 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-Figure 4 As shown, a lithium brushless ratchet wrench includes a body 1 and a handle 2 fixedly connected to the body 1, a mounting groove 14 is provided on the handle 2, a pressing plate 3 is slidably connected in the mounting groove 14, a movable cavity 12 is formed between the pressing plate 3 and the inner bottom surface of the mounting groove 14, a plurality of pressing grooves 4 are provided on the pressing plate 3, when holding the ratchet wrench, fingers are embedded in the pressing grooves 4, so that it is easy to hold, and this design improves the holding comfort of the ratchet wrench.

[0026] Figure 3 and Figure 4As shown, a spring 8 for pushing the pressing plate 3 to slide is fixedly connected in the movable cavity 12. When the pressing plate 3 slides into the mounting groove 14, the movable cavity 12 becomes smaller and the spring 8 is deformed. When the force pressing the pressing plate 3 disappears, the deformed torsion spring 11 pushes the pressing plate 3 to reset, thereby resetting the pressing plate 3. Since two springs 8 are provided, the force on the pressing plate 3 is more uniform.

[0027] Figure 3 and Figure 4 As shown, two rotating plates 9 are rotatably connected in the movable cavity 12, and a plurality of rotating shafts 10 are fixedly connected in the mounting groove 14. The rotating plates 9 are rotatably connected to the rotating shafts 10, and the rotating shafts 10 play a role in positioning the position of the rotating plates 9 to prevent the center point of the rotating plates 9 from shifting when the rotating plates 9 rotate.

[0028] Figure 3 and Figure 4 As shown, a torsion spring 11 is sleeved on the rotating shaft 10, so when holding the ratchet wrench, the pressing plate 3 slides into the mounting groove 14, and pushes the rotating plate 9 to rotate during the sliding process. At this time, the torsion spring 11 is deformed, and when the ratchet wrench is released, the deformed torsion spring 11 drives the rotating plate 9 to rotate in the opposite direction due to the disappearance of the acting force, and the pressing plate 3 is pushed to reset during the resetting process of the rotating plate 9. This design plays the role of resetting the pressing plate 3 and the rotating plate 9.

[0029] Figure 3 and Figure 4 As shown, one end of the rotating plate 9 is in contact with the bottom surface of the pressing plate 3, and the other end of the rotating plate 9 is rotatably connected to a protective plate, which includes a flat plate 13 and an arc plate 5 integrally formed with the flat plate 13. The flat plate 13 can facilitate the rotating plate 9 to push it to slide, and the arc plate 5 better fits the curvature of the hand, thereby better restricting the hand.

[0030] Figure 3 and Figure 4 As shown, the arc plate 5 is located outside the mounting groove 14, and the flat plate 13 is rotatably connected to the rotating plate 9. When the flat plate 13 rotates, the arc plate 5 slides out of the mounting groove 14, and a gripping groove 6 is formed between the two protective plates and the pressing plate 3. When the handle 2 is held, the pressing plate 3 drives the rotating plate 9 to move. At this time, the protective plate slides out of the mounting groove 14 and the hand is located in the gripping groove 6.

[0031] Figure 3 and Figure 4As shown, when holding the handle 2, the hand presses the pressing plate 3, and the pressing plate 3 slides into the installation groove 14. The spring 8 is deformed due to the force, and during the sliding process of the pressing plate 3, it can push one end of the rotating plate 9 to rotate downward. At the same time, the other end of the rotating plate 9 pushes the flat plate 13 to slide upward, so that the arc plate 5 slides out of the installation groove 14, thereby surrounding the hand. At this time, the hand is located in the holding groove 6 formed between the two arc plates 5 and the pressing plate 3. This design makes the ratchet wrench more firmly held and prevents it from slipping out of the hand due to excessive torque during use.

[0032] Figure 3 and Figure 4 As shown, the plate 13 is fixedly connected to a limit block 15 at one end close to the rotating plate 9, which can limit the sliding range of the plate 13 and prevent the plate 13 from being separated from the mounting groove 14 during the sliding process or the use of the ratchet wrench.

[0033] Figure 3 and Figure 4 As shown, a protective sheet 7 is fixedly connected to the inner wall of the arc plate 5. The protective sheet 7 is elastic, so that the protective sheet can be more comfortable when in contact with the hand, avoiding the protective sheet from hurting the hand. Moreover, since the protective sheet 7 is elastic, the degree of deformation can be determined according to the size of the hand, so that the gripping groove 6 can adapt to hands of different sizes, thereby improving the practicality of the ratchet wrench.

[0034] The above is an introduction to a lithium brushless ratchet wrench provided by the utility model. This article uses specific examples to illustrate the principle and implementation of the utility model. The description of the above embodiments is only used to help understand the utility model and its core ideas. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A lithium brushless ratchet wrench, comprising a body and a handle fixedly connected to the body, characterized in that: The handle is provided with a mounting groove, in which a pressing plate is slidably connected, and the mounting groove is located below the pressing plate and is rotatably connected to two rotating plates, one end of the rotating plate is in contact with the bottom surface of the pressing plate, and the other end of the rotating plate is rotatably connected to a protective plate, and the free end of the protective plate extends out of the mounting groove, and a gripping groove is formed between the two protective plates and the pressing plate. When the handle is gripped, the pressing plate drives the rotating plate to move, and at this time the protective plate slides out of the mounting groove and the hand is located in the gripping groove.

2. A lithium brushless ratchet wrench according to claim 1, characterized in that: A plurality of rotating shafts are fixedly connected in the installation groove, and the rotating plate is rotatably connected to the rotating shafts.

3. A lithium brushless ratchet wrench according to claim 2, characterized in that: A torsion spring is sleeved on the rotating shaft, and when the rotating plate rotates, the torsion spring is deformed.

4. A lithium brushless ratchet wrench according to claim 1, characterized in that: The protective plate includes a flat plate and an arc plate integrally formed with the flat plate, the arc plate is located outside the mounting groove, the flat plate is rotatably connected to the rotating plate, and when the flat plate rotates, the arc plate slides out of the mounting groove.

5. A lithium brushless ratchet wrench according to claim 1, characterized in that: A movable cavity is formed between the pressing plate and the bottom surface of the installation groove, the rotating plate is located in the movable cavity, and a spring for pushing the pressing plate to slide is fixedly connected in the movable cavity. When the pressing plate slides into the installation groove, the movable cavity becomes smaller and the spring is deformed.

6. A lithium brushless ratchet wrench according to claim 5, characterized in that: The springs are provided in two numbers.

7. A lithium brushless ratchet wrench according to claim 4, characterized in that: A protective sheet is fixedly connected to the inner side wall of the arc-shaped plate.

8. A lithium brushless ratchet wrench according to claim 7, characterized in that: The protection sheet is elastic.

9. A lithium brushless ratchet wrench according to claim 1, characterized in that: The pressing plate is provided with a plurality of pressing grooves.

10. A lithium brushless ratchet wrench according to claim 4, characterized in that: The flat plate is fixedly connected to a limiting block at one end close to the rotating plate.

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