Portable manual quick screwdriver

Abstract

The utility model discloses a portable manual quick screwdriver, which belongs to the technical field of machinery, and comprises a screwdriver head, a gear assembly, a handle gear and a handle, the gear assembly comprises a first gear and a second gear; the handheld end of the handle gear is arranged on the surface of the handle, the output end of the handle gear is connected with the second gear, the first gear is meshed with the handle gear, and the first gear and the second gear are arranged in the handle; one end of the tool bit is connected with the gear assembly, and the other end of the tool bit extends out of the handle. The screwdriver is convenient to carry and can quickly disassemble and assemble screws without depending on a power source, so that the problem that an existing screwdriver excessively depends on the power source, and the use scene is limited is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of machinery, and particularly relates to a portable manual quick screwdriver. Background Art

[0002] In current screw disassembly and installation operations, facing different working environments and requirements, there are various screw disassembly means. For general screwdrivers or socket toolings, they mainly rely on manual labor for disassembly and assembly. When encountering long screws, the operator needs to manually rotate the tool one by one. This not only has low operation efficiency but also easily causes physical fatigue. Performing such operations for a long time is a great challenge to the operator's physical strength and endurance. Although electric screwdrivers solve the problem of manual disassembly and assembly to a certain extent, they use electricity as the power source and achieve electric rotation through battery power supply. Moreover, electric screwdrivers are relatively large in size and not convenient to carry. Especially in outdoor mobile operations, they are particularly cumbersome. In addition, the battery life is limited, and it is necessary to frequently charge or replace the battery, which not only increases the operation cost but also affects the continuity and efficiency of the operation. Pneumatic screwdrivers rely on gas compressors as the power source and need to be used in connection with air pipes. This characteristic determines that pneumatic screwdrivers can only be used in fixed places such as inside factories and cannot meet the needs of outdoor mobile operations, and their usage scenarios are greatly limited.

[0003] In summary, the existing technologies have their own advantages and disadvantages in screw disassembly and installation operations, but in outdoor mobile operation environments, they all have certain limitations and inconveniences. Therefore, there is an urgent need for a new type of screw disassembly and installation device that can overcome these limitations and meet the needs of outdoor operations. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a portable manual quick screwdriver that can be conveniently carried and no longer relies on a power source for quick screw disassembly and assembly, so as to solve the problem that the existing screwdrivers are overly dependent on the power source, resulting in limited usage scenarios.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A portable manual quick screwdriver, comprising: a tool bit, a gear assembly, a handle gear, and a handle. The gear assembly includes a first gear and a second gear;

[0007] The hand-held end of the handle gear is arranged on the surface of the handle. The output end of the handle gear is connected to the second gear. The first gear meshes with the handle gear. The first gear and the second gear are arranged inside the handle. One end of the tool bit is connected to the gear assembly, and the other end of the tool bit extends to the outside of the handle.

[0008] In some embodiments, a fixed bearing is installed on the tool bit.

[0009] In some embodiments, the fixed bearing is installed inside the handle.

[0010] In some embodiments, the diameter of the first gear is smaller than that of the second gear.

[0011] In some embodiments, a circlip is provided on the gear assembly, and the circlip connects to the output end of the handle gear.

[0012] In some embodiments, a circlip is provided on the second gear, and the circlip connects to the output end of the handle gear.

[0013] In some embodiments, a third gear is provided at one end of the tool bit, and the third gear meshes with the second gear.

[0014] In some embodiments, a through groove is provided on the surface of the handle, and the handle gear passes through the surface of the handle through the through groove.

[0015] In some embodiments, the handle gear has a rack, and the rack meshes with the first gear.

[0016] In some embodiments, the tool bit is a detachable tool bit.

[0017] Compared with the prior art, the present utility model has the following beneficial effects:

[0018] The present utility model provides a portable manual quick screwdriver, which includes a tool bit, a gear assembly, a handle gear and a handle. The gear assembly includes a first gear and a second gear; the hand-held end of the handle gear is arranged on the surface of the handle, the output end of the handle gear is connected to the second gear, the first gear meshes with the handle gear, and the first gear and the second gear are arranged inside the handle; one end of the tool bit is connected to the gear assembly, and the other end of the tool bit extends to the outside of the handle. When in use, an operator holds the handle and drives the handle gear to rotate, driving the first gear to rotate, and the first gear drives the second gear to rotate, so as to drive the tool bit to rotate for screw disassembly work. In addition, the present utility model no longer depends on a power source and can use human power for simple operations to complete the quick disassembly and assembly of screws. The portable manual quick screwdriver is small in size and easy to carry, and is especially suitable for outdoor operations or emergency repair scenarios, providing great convenience for users.

[0019] Furthermore, the present utility model installs a fixed bearing on the tool bit, which can effectively reduce the friction and wear of the tool bit during rotation, improve the durability and use comfort of the screwdriver, and increase the speed of screwing screws.

[0020] Further, the diameter of the first gear of the present utility model is smaller than that of the second gear. Therefore, the transmission ratios of the first gear and the second gear are different, achieving torque amplification, enabling the operator to obtain a greater rotational torque with a smaller force, and thus making it easier to screw in the screw.

[0021] Further, the present utility model is provided with a circlip, which can reset the handle gear when the operator releases the hand-held end of the handle gear, enabling the operator to reduce the manpower during the process of screwing in the screw and achieving the function of quickly disassembling the screw.

[0022] Further, the tool bit of the present utility model is set as a detachable tool bit, enabling the screwdriver to adapt to various types and specifications of screws, enhancing the practicability and flexibility. When the tool bit is worn or damaged due to long-term use, only the worn tool bit needs to be simply replaced, greatly extending the service life of the screwdriver and also reducing the use cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic structural diagram of the portable manual quick screwdriver provided for Embodiment 1;

[0024] In the figure, 1, tool bit; 2, fixed bearing; 3, gear assembly; 4, circlip; 5, handle gear; 6, handle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] In the following, only some exemplary embodiments are simply described. Without departing from the spirit or scope of the present utility model, the described embodiments can be modified in various different ways. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.

[0026] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and thus cannot be construed as a limitation to the present utility model.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0028] In this utility model, unless otherwise specified or limited, the terms "install," "connect," "connected," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0029] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0030] At present, electric or pneumatic power sources are generally used to tighten or remove screws. In outdoor places, the only way to solve the problem is to replace the battery, which brings inconvenience to outdoor work. Simply using manual disassembly is inefficient and also makes people tired. In order to solve the problem of excessive reliance on electricity and pneumatics in the process of quickly disassembling and installing screws in outdoor work, the utility model gets rid of the dependence on charging, frees up manpower, and quickly completes the work. At the same time, the device is small in size and easy to carry. The design of this portable manual fast screwdriver also fully considers the user's usage habits and needs, and strives to find the best balance between functionality and portability. Its unique transmission mechanism enables each manual operation to be converted into an efficient screw disassembly and assembly action, greatly improving the overall efficiency of outdoor work and user experience.

[0031] Example 1

[0032] like Figure 1 As shown, the utility model provides a portable manual fast screwdriver, comprising: a cutter head 1, a gear assembly 3, a handle gear 5 and a handle 6, wherein the gear assembly 3 comprises a first gear and a second gear;

[0033] The handheld end of the handle gear 5 is set on the surface of the handle 6, the output end of the handle gear 5 is connected to the second gear, the first gear engages the handle gear 5, and the first gear and the second gear are set inside the handle 6; one end of the cutter head 1 is connected to the gear assembly 3, and the other end of the cutter head 1 extends to the outside of the handle 6, and a fixed bearing 2 is installed on the cutter head 1, and the fixed bearing 2 is installed inside the handle 6.

[0034] The diameter of the first gear is smaller than that of the second gear. A snap ring 4 is arranged on the gear assembly 3, and the snap ring 4 is connected to the output end of the handle gear 5. A snap ring 4 is arranged on the second gear, and the snap ring 4 is connected to the output end of the handle gear 5. One end of the tool bit 1 is provided with a third gear, and the third gear meshes with the second gear. A through groove is arranged on the surface of the handle 6, and the handle gear 5 penetrates through the surface of the handle 6 through the through groove. The handle gear 5 is provided with a rack, and the rack meshes with the first gear.

[0035] The portable manual quick screwdriver provided in this embodiment uses a gear transmission ratio and a mode of changing the transmission direction. The first gear and the second gear are installed inside the handle 6 for transmission. The operator holds the handle and drives the handle gear 5 to rotate. After being stressed, the rack rotates towards the inside of the handle 6, driving the first gear in the gear assembly 3 to rotate. The rotation of the first gear drives the second gear to rotate, and the rotation of the second gear drives the third gear at one end of the tool bit 1 to rotate, thereby driving the tool bit 1 to rotate and completing the quick disassembly and assembly of the screw head. The diameter of the first gear is smaller than that of the second gear, and the transmission ratios of the first gear and the second gear are different. When the first gear rotates one week, the second gear also rotates one week, and the function of quickly realizing gripping the handle 6 once and the tool bit 1 rotating several circles can be achieved; the screwdriver in this embodiment is also equipped with a fixed bearing 2, which can be used for orientation and reducing friction, so as to quickly disassemble the screw; the screwdriver in this embodiment is provided with a snap ring 4 inside the handle 6. After pressing once, due to the spring performance of the snap ring 4, the handle gear 5 can be reset and reused, achieving the purpose of reducing manpower and realizing quick disassembly.

[0036] In summary, the portable screwdriver provided in this embodiment has the function of quickly disassembling and assembling screws. Compared with the prior art that uses batteries and air pressure as power, this embodiment more considers the portability and convenience of outdoor operations, no longer relies on the power source, and cleverly uses the gear rotation design to achieve the quick disassembly and assembly function. It is much lighter in volume and weight than an electric screwdriver and is convenient to carry.

[0037] Embodiment 2

[0038] On the basis of Embodiment 1, this embodiment provides a portable manual quick screwdriver, including: a tool bit 1, a gear assembly 3, a handle gear 5, and a handle 6. The gear assembly 3 includes a first gear and a second gear;

[0039] A fixed bearing 2 is installed on the tool bit 1, and the fixed bearing 2 is installed inside the handle (6). The diameter of the first gear is smaller than that of the second gear. A snap ring 4 is arranged on the second gear, and the snap ring 4 is connected to the output end of the handle gear 5. One end of the tool bit 1 is provided with a third gear, and the third gear meshes with the second gear.

[0040] The hand-held end of the handle gear 5 is arranged on the surface of the handle 6. The output end of the handle gear 5 is connected to the second gear. The first gear meshes with the handle gear 5. The first gear and the second gear are arranged inside the handle 6. One end of the tool bit 1 is connected to the gear assembly 3, and the other end of the tool bit 1 extends to the outside of the handle 6. The tool bit 1 is a detachable tool bit, which can be replaced with different tool bits according to different operation requirements, and is suitable for scenarios of various screw types and specifications, improving work efficiency. When the tool bit is worn or damaged, there is no need to replace the whole screwdriver, and only the damaged tool bit needs to be replaced, prolonging the service life of the screwdriver.

[0041] In this embodiment, the detachable design of the tool bit 1 not only allows users to easily replace tool bits of different specifications and types according to operation requirements to adapt to scenarios of various screw types and specifications, thus greatly improving work efficiency. More importantly, when the tool bit is worn or damaged due to long-term use, only the worn tool bit needs to be simply replaced, greatly prolonging the service life of the screwdriver and also reducing the use cost.

[0042] As is known by common technical knowledge, the present utility model can be implemented by other embodiments without departing from its spiritual essence or essential features. Therefore, the above-disclosed embodiments are illustrative in all aspects and not exclusive. All changes within the scope of the present utility model or equivalent to the scope of the present utility model are encompassed by the present utility model.

Claims

1. A portable manual quick screwdriver, characterized in that, Comprising: A cutter head (1), a gear assembly (3), a handle gear (5) and a handle (6), the gear assembly (3) includes a first gear and a second gear; The hand-held end of the handle gear (5) is arranged on the surface of the handle (6), the output end of the handle gear (5) is connected to the second gear, the first gear meshes with the handle gear (5), and the first gear and the second gear are arranged inside the handle (6); one end of the cutter head (1) is connected to the gear assembly (3), and the other end of the cutter head (1) extends to the outside of the handle (6).

2. The portable manual quick screwdriver according to claim 1, characterized in that, A fixed bearing (2) is installed on the cutter head (1).

3. The portable manual quick screwdriver according to claim 2, characterized in that, The fixed bearing (2) is installed inside the handle (6).

4. A portable manual quick screwdriver according to claim 1, wherein, The diameter of the first gear is smaller than the diameter of the second gear.

5. A portable manual quick screwdriver according to claim 1, characterized in that, A snap ring (4) is arranged on the gear assembly (3), and the snap ring (4) is connected to the output end of the handle gear (5).

6. A portable manual quick screwdriver according to claim 1, characterized in that A snap ring (4) is arranged on the second gear, and the snap ring (4) is connected to the output end of the handle gear (5).

7. A portable manual quick screwdriver according to claim 1, characterized in that, A third gear is arranged at one end of the cutter head (1), and the third gear meshes with the second gear.

8. A portable manual quick screwdriver according to claim 1, characterized in that, A through groove is arranged on the surface of the handle (6), and the handle gear (5) penetrates through the surface of the handle (6) through the through groove.

9. A portable manual quick screwdriver according to claim 1, characterized in that, The handle gear (5) has a rack, and the rack meshes with the first gear.

10. A portable manual quick screwdriver according to claim 1, characterized in that, The cutter head (1) is a detachable cutter head.

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