Angle-adjustable electric screwdriver

Abstract

The utility model provides an angle-adjustable electric screwdriver and belongs to the technical field of screwdrivers. The device comprises a handle, a transmission rod, a driven rod, a protective shell, a spherical sleeve, an inner hexagonal connector and a bearing, a motor is arranged in the handle, one end of the transmission rod penetrates through the handle to be connected to the output end of the motor, a first wafer gear is fixed to the other end of the transmission rod, a second wafer gear is fixed to one end of the driven rod, and the second wafer gear is meshed with the first wafer gear; the protective shell surrounds the transmission rod, the first wafer gear, the driven rod and the second wafer gear, a through hole is formed in the spherical sleeve, the spherical sleeve is rotatably arranged at the end, close to the driven rod, of the protective shell, the end, away from the second wafer gear, of the driven rod is arranged in the through hole, and the inner hexagonal connector is arranged at the end, close to the spherical sleeve, of the driven rod. The bearing is arranged at the joint of the driven rod and the through hole. The driven rod can rotate relative to the transmission rod under the action of the spherical sleeve, and rotation of the angle of the tool bit is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of screwdrivers, in particular to an electric screwdriver with adjustable angle. Background Art

[0002] The existing screwdriver head forms a right angle or other fixed angle with the handle, and screws in corner gaps or slots cannot be directly tightened. Screws in corners or slots are usually tightened manually using a screwdriver. In some special structural positions, the operator may not be able to exert enough strength, resulting in the screws not being tightened. Therefore, the utility model provides an electric screwdriver with adjustable angle. Summary of the invention

[0003] In order to make up for the above shortcomings, the utility model provides an adjustable angle electric screwdriver, which aims to improve the existing screwdriver head and the handle position to form a right angle or other fixed angle. Screws in corner gaps or slots cannot be tightened directly. Screws in corners or slots are usually tightened manually using a screwdriver. In some special structural positions, the operator may not be able to exert enough strength, resulting in the problem that the screws cannot be tightened.

[0004] The utility model is achieved in this way:

[0005] The utility model provides an electric screwdriver with adjustable angle, comprising:

[0006] A handle, wherein a motor is disposed in the handle;

[0007] A transmission rod, one end of which passes through the handle and is connected to the output end of the motor, and the other end of which is fixed with a first disc gear;

[0008] A driven rod, one end of which is fixed with a second disc gear, the second disc gear meshing with the first disc gear;

[0009] a protective shell, wherein the protective shell surrounds the transmission rod, the first disc gear, the driven rod, and the second disc gear;

[0010] a spherical sleeve, wherein a through hole is arranged on the spherical sleeve, the spherical sleeve is rotatably arranged at one end of the protective shell close to the driven rod, and one end of the driven rod away from the second disc gear is arranged in the through hole;

[0011] An inner hexagon socket joint, the inner hexagon socket joint is arranged at one end of the driven rod close to the spherical sleeve;

[0012] A bearing is arranged at the connection between the driven rod and the through hole.

[0013] Preferably, the hexagon socket joint is detachably connected to the transmission rod.

[0014] Preferably, the first disc gear comprises:

[0015] A first truncated cone, wherein the center of the bottom surface with a larger area of ​​the first truncated cone is connected to the transmission rod;

[0016] A plurality of first semicircular sheets are evenly arranged on the side surfaces of the first truncated cone.

[0017] Preferably, the second disc gear comprises:

[0018] A second truncated cone, wherein the center of the bottom surface of the second truncated cone with a larger area is connected to the driven rod;

[0019] A plurality of second semicircular sheets are evenly arranged on the side surfaces of the first truncated cone.

[0020] Preferably, the switch of the motor is arranged on the outer surface of the handle.

[0021] Preferably, a battery is installed in the handle, and the battery is electrically connected to the motor.

[0022] Preferably, it also includes:

[0023] A spherical sleeve is arranged at the connection between the spherical sleeve and the protective shell, and the spherical sleeve is restricted to rotate in the spherical sleeve.

[0024] The beneficial effects of the utility model are as follows: the utility model provides an adjustable angle electric screwdriver, which can achieve angle adjustment through the meshing between the first disc gear and the second disc gear, the driven rod can be restricted in the spherical sleeve, and the spherical sleeve is restricted to rotate at the port of the protective shell, so as to realize the rotation of the angle of the screwdriver head, and can screw screws in corner gaps or slots, thereby improving the adaptability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A schematic diagram of the structure of an electric screwdriver with adjustable angle provided in an embodiment of the utility model;

[0027] Figure 2This is a schematic diagram of the structure of the first disc gear and the second disc gear provided in an embodiment of the utility model.

[0028] In the figure: handle 1, transmission rod 2, first disc gear 200, first truncated cone 201, first semicircular piece 202, driven rod 3, second disc gear 300, second truncated cone 301, second semicircular piece 302, protective shell 4, spherical sleeve 5, hexagon socket joint 6, spherical sleeve 7. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific drawings.

[0030] It should be noted that, in the present invention, when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only and do not represent the only implementation method.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0032] Example

[0033] like Figure 1-2 As shown, the utility model provides an adjustable angle electric screwdriver, comprising: a handle 1, a transmission rod 2, a driven rod 3, a protective shell 4, a spherical sleeve 5, a hexagon socket joint 6, and a bearing. A motor is arranged in the handle 1, one end of the transmission rod 2 passes through the handle 1 and is connected to the output end of the motor, a first disc gear 200 is fixed to the other end of the transmission rod 2, a second disc gear 300 is fixed to one end of the driven rod 3, the second disc gear 300 is meshed with the first disc gear 200, the protective shell 4 surrounds the transmission rod 2, the first disc gear 200, the driven rod 3, and the second disc gear 300, a through hole is arranged on the spherical sleeve 5, the spherical sleeve 5 is rotatably arranged at one end of the protective shell 4 close to the driven rod 3, the end of the driven rod 3 away from the second disc gear 300 is arranged in the through hole, the hexagon socket joint 6 is arranged at one end of the driven rod 3 close to the spherical sleeve 5, and the bearing is arranged at the connection of the through hole of the driven rod 3, as shown in FIG. Figure 1-2The first disc gear 200 and the second disc gear 300 shown are based on the original bevel gears, and the teeth of the bevel gears are improved into arc shape. When the hexagon socket joint 6 is manually rotated, the driven rod 3 is rotated a certain angle, the spherical sleeve 5 can rotate at the end of the protective shell 4, and the second disc gear 300 rotates relative to the first disc gear 200. Since the teeth of the first disc gear 200 and the second disc gear 300 are semicircular, the two disc gears can still be connected after rotation, thereby realizing the angle adjustment of the electric screwdriver.

[0034] In this embodiment, the hexagon socket joint 6 is detachably connected to the transmission rod 2, and the joint connected to the end of the transmission rod 2 can be replaced according to actual needs to increase the adaptability of the device.

[0035] In this embodiment, the first disc gear 200 includes: a first truncated cone 201, a first semicircular piece 202, the center of the larger bottom surface of the first truncated cone 201 is connected to the driving rod 2, and the first semicircular piece 202 is evenly arranged on the side of the first truncated cone 201. The second disc gear 300 includes: a second truncated cone 301, a second semicircular piece 302, the center of the larger bottom surface of the second truncated cone 301 is connected to the driven rod 3, and the second semicircular piece 302 is evenly arranged on the side of the first truncated cone 201. Figure 2 As shown, this structure enables the driven rod 3 to remain connected when it rotates relative to the transmission rod 2.

[0036] In this embodiment, the handle 1 contains a battery, which is electrically connected to the motor, and further includes: a spherical cover 7, which is arranged at the connection between the spherical cover 5 and the protective shell 4, and the spherical cover 5 is restricted to rotate in the spherical cover 7.

[0037] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An electric screwdriver with adjustable angle, characterized in that: include: A handle, wherein a motor is disposed in the handle; A transmission rod, one end of which passes through the handle and is connected to the output end of the motor, and the other end of which is fixed with a first disc gear; A driven rod, one end of which is fixed with a second disc gear, the second disc gear meshing with the first disc gear; a protective shell, wherein the protective shell surrounds the transmission rod, the first disc gear, the driven rod, and the second disc gear; a spherical sleeve, wherein a through hole is arranged on the spherical sleeve, the spherical sleeve is rotatably arranged at one end of the protective shell close to the driven rod, and one end of the driven rod away from the second disc gear is arranged in the through hole; An inner hexagon socket joint, the inner hexagon socket joint is arranged at one end of the driven rod close to the spherical sleeve; A bearing is arranged at the connection between the driven rod and the through hole.

2. The adjustable angle electric screwdriver according to claim 1, characterized in that: The hexagon socket joint is detachably connected to the transmission rod.

3. The adjustable angle electric screwdriver according to claim 1, characterized in that: The first disc gear comprises: A first truncated cone, wherein the center of the bottom surface with a larger area of ​​the first truncated cone is connected to the transmission rod; A plurality of first semicircular sheets are evenly arranged on the side surfaces of the first truncated cone.

4. The adjustable angle electric screwdriver according to claim 3, characterized in that: The second disc gear comprises: A second truncated cone, wherein the center of the bottom surface of the second truncated cone with a larger area is connected to the driven rod; A plurality of second semicircular sheets are evenly arranged on the side surfaces of the first truncated cone.

5. The adjustable angle electric screwdriver according to claim 1, characterized in that: The switch of the motor is arranged on the outer surface of the handle.

6. The adjustable angle electric screwdriver according to claim 1, characterized in that: A battery is installed in the handle, and the battery is electrically connected to the motor.

7. The angle-adjustable electric screwdriver according to claim 1, characterized in that: Also includes: A spherical sleeve is arranged at the connection between the spherical sleeve and the protective shell, and the spherical sleeve is restricted to rotate in the spherical sleeve.

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