A fingertip gyro screwdriver

Abstract

The present invention discloses a fingertip gyro screwdriver, which includes a rotating body and a screwdriver bit. A bearing is arranged at the center of the rotating body. The outer ring of the bearing is connected to the rotating body, and a central body is connected to the inner ring of the bearing. A plurality of connecting holes are arranged in the circumferential direction of the rotating body, and the screwdriver bit is detachably connected in the connecting holes. The present invention not only has the function of a screwdriver but also has the entertainment function of a fingertip gyro, with rich functions and good market prospects.

Description

Technical Field

[0001] The invention relates to a screwdriver, in particular to a fingertip gyroscope screwdriver. Background Art

[0002] A screwdriver, also known as a screwdriver, is a tool commonly used in daily life. Existing screwdrivers usually include a handle and a shank, and a screwdriver head is arranged at the front end of the shank. Existing screwdrivers have the problem of single function.

[0003] For example: Chinese patent publication number CN 104942739 A, the invention name is a screwdriver, the screwdriver includes a handle and a shank, the handle has a receiving cavity, the screwdriver also includes a button and an elastic member, the button is installed on the side wall of the handle, the button includes a limit rod, the shank includes a first end and a second end opposite to each other, the second end of the shank is provided with a cutter head, the first end is provided with a thread corresponding to the button, when the button is pressed, the limit rod is inserted into the thread, the elastic member is held between the first end of the shank and the bottom surface of the receiving cavity, and the shank can rotate around the central axis of the shank in the receiving cavity. This screwdriver has the problem of single function. Summary of the invention

[0004] The purpose of the present invention is to solve the problems of the existing screwdriver functional units and to provide a fingertip gyro screwdriver with an anti-detachment and stable structure, which can effectively solve the above problems.

[0005] The objective of the present invention is achieved through the following technical solution: a fingertip gyro screwdriver, comprising a rotating body and a screwdriver head, a bearing is arranged at the center of the rotating body, the outer ring of the bearing is connected to the rotating body, and the inner ring of the bearing is connected to the center body; a plurality of connecting holes are arranged on the circumference of the rotating body, and the screwdriver head can be detachably connected in the connecting holes.

[0006] The present invention can be used as a screwdriver or as a fidget spinner. In the present invention, a plurality of screwdriver heads of different specifications are arranged on the circumference of the rotating body, which can be used to tighten screws of various specifications; when used as a fidget spinner, the operator pinches the two ends of the central body with two fingers respectively, and rotates the rotating body by turning the rotating body, thereby realizing the entertainment function of the fidget spinner. The screwdriver head is detachably connected to the link hole, so that screwdriver heads of different specifications can be replaced according to actual needs. The present invention has both the function of a screwdriver and the entertainment function of a fidget spinner, is rich in functions, and has a good market prospect.

[0007] Preferably, the cross section of the connecting hole is hexagonal.

[0008] Preferably, the central body includes a first cover plate and a second cover plate, which are respectively located at both ends of the bearing. A sleeve is provided on one side of the first cover plate, and the sleeve is connected to the inner ring of the bearing. A central column connected to the sleeve is provided on the second cover plate, and the central column is inserted into the sleeve. An interference fit is provided between the sleeve and the inner ring of the bearing, and an interference fit is provided between the central column and the sleeve.

[0009] Preferably, a snap groove is provided on the side surface of the connection hole, and a snap is provided in the snap groove. The snap includes an elastic bending portion, one end of the elastic bending portion is fixed on the inner wall of the snap groove, and a hook is provided at the other end; a circular snap groove corresponding to the hook is provided on the side surface of the screwdriver bit. The hook and the elastic bending portion are integrally formed. When the screwdriver bit is inserted into the connection hole, the snap is snapped into the circular snap groove on the side surface of the screwdriver bit, so that the screwdriver bit can be more reliably connected in the connection hole. When replacing the screwdriver bit, the screwdriver bit can be pulled out of the connection hole with a certain force, and then the screwdriver bit to be replaced can be inserted.

[0010] Preferably, the elastic bending portion is in a "C" shape.

[0011] Preferably, the snap is made of plastic.

[0012] Preferably, a first piston cavity is provided on one side of the buckle groove, the first piston cavity is open toward one end of the buckle, a first piston is provided in the first piston cavity, and a first oil cavity is formed between the first piston and one end of the first piston cavity; a push rod is connected to one end of the first piston near the buckle, and the push rod is directly opposite to the hook; a step surface is provided on the push rod, a retaining ring is provided at the open end of the first piston cavity, and a first spring is provided between the retaining ring and the step surface; a guide hole is provided at one end of the connecting hole, a fixed block is provided in the guide hole, a second piston cavity is provided on the fixed block, the second piston cavity is arranged along the radial direction of the rotating body, a second piston is provided in the second piston cavity, an end of the second piston near the center of the rotating body is connected to a telescopic rod, and an end of the telescopic rod away from the second piston is connected to a moving block; a second oil cavity is formed between the second piston and one end of the second piston cavity, a second spring is provided in the second oil cavity, and the two ends of the second spring are respectively abutted against the inner walls of the second piston and the second piston cavity; hydraulic oil is filled in the first oil cavity and the second oil cavity, and the first oil cavity and the second oil cavity are connected by an oil guide pipe. The guide hole is provided along the radial direction of the rotating body. When the present invention is used as a fidget gyroscope, the rotating body rotates around the central body at a faster speed. At this time, the screwdriver head connected to the circumference of the central body will be subjected to a large centrifugal force, and the screwdriver head is easily thrown out, causing certain safety hazards. The present invention effectively solves this problem. In the present invention, when the rotating body is rotating, the moving block rotates synchronously with the rotating body. At this time, the moving block moves toward the radial outer side of the rotating body under the action of centrifugal force. At this time, the moving block will drive the telescopic rod and the second piston to move when moving, so that the volume of the second oil chamber is reduced, and the hydraulic oil in the second oil chamber enters the first oil chamber through the oil guide pipe, pushing the first piston and the push rod to move in the direction of the hook. The front end of the push rod supports the hook, so that the hook can be firmly stuck in the annular groove, and the hook will not easily detach from the annular groove, thereby effectively preventing the screwdriver head from being thrown out of the connecting hole; when the rotating body stops rotating, the centrifugal force acting on the moving block disappears, and the first piston and the second piston are reset under the action of the first spring and the second spring respectively, and the push rod retracts to the initial position.

[0013] Preferably, a through hole is provided on the moving block.

[0014] The beneficial effects of the present invention are as follows: the present invention has the function of a screwdriver and the entertainment function of a fidget spinner, is rich in functions, and has a good market prospect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention.

[0016] Figure 2 It is a schematic diagram of the structure of the rotating body.

[0017] Figure 3 It is a front view of the present invention.

[0018] Figure 4 is Figure 3 A sectional view taken along the A-A direction in

[0019] Figure 5 is Figure 4 An enlarged view of part a in

[0020] Figure 6 is Figure 4 An enlarged view of part b in

[0021] In the figure: 1, rotating body; 2, screwdriver bit; 3, central hole; 4, connecting hole; 5, bearing; 6, first cover plate; 7, second cover plate; 8, snap groove; 9, elastic bending part; 10, hook; 11, annular clamping groove; 12, first piston; 13, ejector rod; 14, retaining ring; 15, first spring; 16, first oil cavity; 17, oil guide pipe; 18, guide hole; 19, fixing block; 20, second piston; 21, telescopic rod; 22, second oil cavity; 23, second spring; 24, moving block; 25, through hole. Specific embodiments

[0022] The present invention will be further described below through specific embodiments in conjunction with the accompanying drawings.

[0023] Embodiment 1:

[0024] As Figures 1 to 6 shown, a fingertip gyro screwdriver includes a rotating body 1 and a screwdriver bit 2. A central hole 3 is provided at the center of the rotating body 1, and a bearing 5 is provided in the central hole 3. The outer ring of the bearing 5 is in interference fit with the central hole 3. A central body is connected to the inner ring of the bearing 5. The central body includes a first cover plate 6 and a second cover plate 7, and the first cover plate 6 and the second cover plate 7 are respectively located at both ends of the bearing 5. A sleeve is provided on one side of the first cover plate 6, and the sleeve is connected to the inner ring of the bearing 5. A central column connected to the sleeve is provided on the second cover plate 7, and the central column is inserted into the sleeve. There is an interference fit between the sleeve and the inner ring of the bearing, and an interference fit between the central column and the sleeve.

[0025] A number of connecting holes 4 are provided in the circumferential direction of the rotating body 1. In this application, a total of six connecting holes 4 are provided, and the six connecting holes 4 are arranged in a circumferential direction of the rotating body 1 in an annular array. The cross-section of the connecting hole 4 is hexagonal. The screwdriver bit 2 is detachably connected to the connecting hole 4.

[0026] A snap groove 8 is provided on the side of the connecting hole 4, and a snap is provided in the snap groove 8. The snap includes an elastic bending part 9, one end of the elastic bending part 9 is fixed on the inner wall of the snap groove 8, and the other end is provided with a hook 10. The snap is made of plastic. The hook 10 and the elastic bending part 9 are integrally formed. The elastic bending part 9 is in a "C" shape. An annular clamping groove 11 corresponding to the hook 10 is provided on the side of the screwdriver bit 2.

[0027] A first piston cavity is provided on one side of the buckle groove 8, and the first piston cavity is open toward one end of the buckle. A first piston 12 is provided in the first piston cavity, and a first oil cavity 16 is formed between the first piston 12 and one end of the first piston cavity. A push rod 13 is connected to the end of the first piston close to the buckle, and the push rod 13 is directly opposite to the hook 10. A step surface is provided on the push rod 13, and a retaining ring 14 is provided at the open end of the first piston cavity, and a first spring 15 is provided between the retaining ring 14 and the step surface. A guide hole 18 is provided at one end of the connecting hole 4, and the guide hole 18 is arranged along the radial direction of the rotating body 1. A fixed block 19 is provided in the guide hole 18, and a second piston cavity is provided on the fixed block 19, and the second piston cavity is arranged along the radial direction of the rotating body 1, and a second piston 20 is provided in the second piston cavity. A telescopic rod 21 is connected to the end of the second piston 20 close to the center of the rotating body, and a moving block 24 is connected to the end of the telescopic rod 21 away from the second piston 20. The moving block 24 is made of lead. The moving block 21 can move along the direction of the guide hole. A through hole 25 is provided on the moving block 21. A second oil chamber 22 is formed between the second piston 20 and one end of the second piston chamber. A second spring 23 is provided in the second oil chamber 22. Both ends of the second spring 23 abut against the second piston 20 and the inner wall of the second piston chamber, respectively. Hydraulic oil is filled in the first oil chamber 16 and the second oil chamber 22. The first oil chamber 16 and the second oil chamber 22 are connected by an oil guide pipe 17.

[0028] The present invention can be used as a screwdriver or as a fidget spinner. In the present invention, a plurality of screwdriver heads of different specifications are arranged on the circumference of the rotating body, which can be used to screw screws of various specifications; when used as a fidget spinner, the operator pinches the two ends of the central body with two fingers respectively, and rotates the rotating body by turning the rotating body, thereby realizing the entertainment function of the fidget spinner. The screwdriver head is detachably connected to the connecting hole, so that screwdriver heads of different specifications can be replaced according to actual needs. When the screwdriver head is inserted into the connecting hole, the buckle is inserted into the annular groove on the side of the screwdriver head, so that the screwdriver head can be more reliably connected to the connecting hole. When replacing the screwdriver head, the screwdriver head can be pulled out of the connecting hole by a certain force, and then the screwdriver head to be replaced can be inserted.

[0029] When the present invention is used as a fidget gyroscope, the rotating body rotates around the central body at a faster speed. At this time, the screwdriver head connected to the circumference of the central body will be subjected to a large centrifugal force, and the screwdriver head is easily thrown out, causing certain safety hazards. The present invention effectively solves this problem. In the present invention, when the rotating body is rotating, the moving block rotates synchronously with the rotating body. At this time, the moving block moves toward the radial outer side of the rotating body under the action of centrifugal force. At this time, the moving block will drive the telescopic rod and the second piston to move when moving, so that the volume of the second oil chamber is reduced, and the hydraulic oil in the second oil chamber enters the first oil chamber through the oil guide pipe, pushing the first piston and the push rod to move in the direction of the hook. The front end of the push rod supports the hook, so that the hook can be firmly stuck in the annular groove, and the hook will not easily detach from the annular groove, thereby effectively preventing the screwdriver head from being thrown out of the connecting hole; when the rotating body stops rotating, the centrifugal force acting on the moving block disappears, and the first piston and the second piston are reset under the action of the first spring and the second spring respectively, and the push rod retracts to the initial position.

[0030] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any 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 fingertip gyro screwdriver, characterized in that: It includes a rotating body and a screwdriver bit. A bearing is provided at the center of the rotating body. The outer ring of the bearing is connected to the rotating body, and a central body is connected to the inner ring of the bearing; a number of connection holes are provided in the circumferential direction of the rotating body, and the screwdriver bit is detachably connected in the connection holes; the central body includes a first cover plate and a second cover plate, and the first cover plate and the second cover plate are respectively located at both ends of the bearing; A snap groove is provided on the side of the connection hole, and a snap is provided in the snap groove; One side of the snap groove is provided with a first piston chamber, the first piston chamber is open at the end facing the snap, a first piston is provided in the first piston chamber, and a first oil chamber is formed between the first piston and one end of the first piston chamber; One end of the connection hole is provided with a guide hole, a fixing block is provided in the guide hole, and a second piston chamber is provided on the fixing block, and the second piston chamber is arranged along the radial direction of the rotating body; The snap includes an elastic bending part, one end of the elastic bending part is fixed on the inner wall of the snap groove, and the other end is provided with a hook; One end of the first piston close to the snap is connected with a push rod, and the push rod is opposite to the hook; A second piston is provided in the second piston chamber. One end of the second piston close to the center of the rotating body is connected with a telescopic rod, and the end of the telescopic rod away from the second piston is connected with a moving block; a second oil chamber is formed between the second piston and one end of the second piston chamber, and a second spring is provided in the second oil chamber. The two ends of the second spring are respectively abutted against the second piston and the inner wall of the second piston chamber; hydraulic oil is filled in both the first oil chamber and the second oil chamber, and the first oil chamber and the second oil chamber are connected by a conduit; The elastic bending part is in a "C" shape.

2. The fingertip gyro screwdriver according to claim 1, characterized in that, The cross-section of the connection hole is hexagonal.

3. A fingertip gyro screwdriver according to claim 1, characterized in that, A sleeve is provided on one side of the first cover plate, and the sleeve is connected in the inner ring of the bearing. A central column connected to the sleeve is provided on the second cover plate, and the central column is inserted into the sleeve.

4. A fingertip gyro screwdriver according to claim 1 or 2 or 3, characterized in that, An annular card slot corresponding to the hook is provided on the side of the screwdriver bit.

5. A fingertip gyro screwdriver according to claim 4, characterized in that, The snap is made of plastic.

6. A fingertip gyro screwdriver according to claim 4, characterized in that, A stepped surface is provided on the push rod, a retaining ring is provided at the open end of the first piston chamber, and a first spring is provided between the retaining ring and the stepped surface.

7. A fingertip gyro screwdriver according to claim 1, characterized in that, A through hole is provided on the moving block.

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