A screwdriver

Abstract

The utility model discloses a screwdriver belongs to screwdriver technical field, including handle and detachable connection in handle's screwdriver bit, is equipped with the storage cavity in the handle, forms the opening of intercommunication storage cavity on the handle, and the screwdriver bit is deposited or is taken out in storage cavity through the opening, the magnetization device is arranged in the storage cavity, is used for the magnetization of depositing in the screwdriver bit of storage cavity. The screwdriver through the cooperation of storage cavity and magnetization device, has realized the integration of the convenient storage and the magnetization function of screwdriver bit, has promoted the work efficiency and the convenience of screwdriver.

Description

Technical Field

[0001] This utility model relates to the field of screwdriver technology, and in particular to a screwdriver. Background Technology

[0002] Magnetic screwdrivers are commonly used tools in daily screw assembly and disassembly. They work by using a built-in magnetic component to magnetize the screwdriver tip, attracting ferromagnetic screws. This allows the screwdriver to hold the screw, facilitating precise positioning during operation and preventing the screw from falling out, especially useful in confined spaces or inconvenient operating positions.

[0003] Currently, in existing technologies, magnetic screwdrivers and magnetizers are generally separate structures. When the screwdriver tip needs to be magnetized, the user must place the screwdriver on a special magnetizer, and the magnetic field generated by the magnetizer magnetizes the tip to enhance or restore its magnetism.

[0004] However, in actual use, the magnetism of the screwdriver tip gradually weakens due to various factors, and each time the magnetism weakens, a separate magnetizer needs to be taken out to remagnetize it. This not only increases the number of steps but also requires users to keep the magnetizer readily available in the work environment, resulting in poor overall operational convenience and affecting work efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a screwdriver that solves the technical problems of existing screwdrivers requiring a separate magnetizer to magnetize the screw head, resulting in low efficiency and poor portability.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A screwdriver, comprising:

[0008] The device includes a handle and screwdriver bits detachably connected to the handle. The handle has a storage cavity inside and an opening communicating with the storage cavity. The screwdriver bits are stored or removed from the storage cavity through the opening.

[0009] A magnetizing device is disposed in the storage cavity for magnetizing the screwdriver bits stored in the storage cavity.

[0010] Preferably, the device also includes a storage component, in which the screwdriver bit can be placed. The storage component is located inside the storage cavity, or can be at least partially detached from the storage cavity through the opening. When the storage component is located inside the storage cavity, it is at least partially within the magnetization range of the magnetization device.

[0011] Preferably, the opening is located at the tail of the handle, and the tail of the storage component is provided with a cap. The cap is provided with a sealing protrusion along its circumference. When the storage component is fully pushed into the storage cavity, the sealing protrusion can abut against the end face of the opening, thereby sealing the storage cavity.

[0012] Preferably, an end cap is provided on the outside of the opening, and the end cap is at least partially detachably connected to the handle.

[0013] Preferably, the inner wall of the storage cavity is provided with a guide rail extending along the moving path of the storage component, and a guide slider is correspondingly provided on the storage component, the guide slider being slidably connected to the guide rail; the guide rail is provided with a limit structure to restrict the moving path of the storage component.

[0014] Preferably, the magnetizing device includes at least one magnet group, which includes two magnet units disposed opposite to each other on the inner wall of the storage cavity, and the two magnet units have opposite magnetisms. A magnetizing area is formed between the two magnet units, and the screwdriver bit can be magnetized when it passes through the magnetizing area.

[0015] Preferably, the storage component is provided with a plurality of placement slots, and a positioning part for fixing the screwdriver bit is provided in the placement slot.

[0016] Preferably, the positioning part includes two elastic clamping arms disposed opposite each other, and a clamping groove for clamping the screwdriver bit is formed between the two elastic clamping arms.

[0017] Preferably, the inner side of the top end of the elastic clamping arm is provided with a guide slope, and the two guide slopes together form a V-shaped guide opening for guiding the screwdriver bit into the clamping groove.

[0018] Preferably, the bottom of the guide slope is provided with an anti-dislodgement surface to prevent the screwdriver bit from disengaging from the clamping groove.

[0019] The beneficial effects of this utility model are:

[0020] This invention proposes a screwdriver that integrates a magnetizing device into a storage cavity inside the handle, achieving a unified function of convenient screwdriver bit storage and magnetization. When the user places the screwdriver bit into the storage cavity through the opening, the magnetizing device magnetizes it, combining the processes of bit retrieval, storage, and magnetization into one, thus improving the screwdriver's ease of use. The screwdriver utilizes the handle's own space, enabling it to magnetize screwdriver bits without affecting basic operation. Users do not need to constantly carry a separate magnetizer; when a screwdriver bit needs magnetization, simply remove the bit to be magnetized, place it through the opening into the storage cavity, and then remove the magnetized bit from the storage cavity and attach it to the handle to continue operation. This effectively improves the screwdriver's efficiency and convenience. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the screwdriver provided in an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the storage component and the screwdriver bit provided in this embodiment of the utility model;

[0023] Figure 3 This is a structural schematic diagram of the storage component provided in an embodiment of the present utility model;

[0024] Figure 4 This is a schematic diagram of the positioning part provided in an embodiment of the present utility model.

[0025] In the picture:

[0026] 1. Handle; 11. Storage cavity; 2. Screwdriver bit; 3. Storage component; 4. Positioning part; 41. Elastic clamping arm; 42. Clamping groove; 43. Guide slope; 44. Anti-detachment surface; 5. Magnetizing device; 51. Magnet unit; 6. Cover; 61. Sealing protrusion. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0028] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0031] See Figures 1 to 4 The screwdriver provided in this embodiment of the utility model includes a handle 1, a screwdriver bit 2 detachably connected to the handle 1, and a magnetizing device 5. The handle 1 has a storage cavity 11 inside, and an opening is formed on the handle 1 to communicate with the storage cavity 11. The screwdriver bit 2 is stored or taken out of the storage cavity 11 through the opening. The magnetizing device 5 is disposed in the storage cavity 11 and is used to magnetize the screwdriver bit 2 stored in the storage cavity 11.

[0032] The screwdriver proposed in this utility model integrates a magnetizing device 5 into the storage cavity 11 inside the handle 1, achieving a unified function of convenient storage and magnetization of screwdriver bits 2. When the user places the screwdriver bits 2 into the storage cavity 11 through the opening, the magnetizing device 5 magnetizes the screwdriver bits 2, combining the process of retrieving, storing, and magnetizing the screwdriver bits 2 into one, thus improving the convenience of using the screwdriver. The screwdriver utilizes the space within the handle 1 itself, enabling it to magnetize screwdriver bits 2 without affecting basic operation. Users do not need to constantly carry a separate magnetizer; when screwdriver bits 2 need magnetization, they simply remove the screwdriver bit to be magnetized, place it into the storage cavity 11 through the opening, and then remove the magnetized screwdriver bit from the storage cavity 11 and install it back into the handle 1 to continue operation, effectively improving the screwdriver's working efficiency and convenience.

[0033] The working principle and specific structure of this screwdriver will be explained in detail below.

[0034] The screwdriver mainly consists of a handle 1 and screwdriver bits 2, which are detachably connected to the handle 1. The handle 1 serves as the main part for gripping and operation, and has a hollow storage cavity 11 inside to accommodate the screwdriver bits 2 and the magnetizing device 5. The screwdriver bits 2 have a conventional structure, with one end being the working end that matches the screw head shape, such as slotted, Phillips, or hexagonal, and the other end being the driving end that connects to the handle 1 or a transmission accessory.

[0035] The storage cavity 11 can be located at the axial center of the handle 1 or offset. The screwdriver bit 2 can be directly stored or removed from the storage cavity 11.

[0036] Although directly storing the screwdriver bits 2 is simple, in order to facilitate the overall handling of multiple screwdriver bits 2, prevent the screwdriver bits 2 from colliding randomly in the storage cavity 11, and enable more accurate alignment and magnetization, in this embodiment, the screwdriver also includes a storage component 3. The screwdriver bits 2 can be placed in the storage component 3, which is located inside the storage cavity 11, or can be at least partially removed from the storage cavity 11 through an opening.

[0037] Specifically, the storage component 3 can be completely pulled out of the storage cavity 11 so that the user can independently replace and organize the screwdriver bits 2 on the storage component 3; or only part of the storage component 3 can be pulled out of the storage cavity 11, so that some of the screwdriver bits 2 are exposed outside the handle 1 for use, while the remaining screwdriver bits 2 or the storage component 3 remain in the storage cavity 11. This effectively avoids the problem of loss that may occur after the storage component 3 is completely removed, and improves the efficiency of taking out and putting away the screwdriver bits 2.

[0038] Furthermore, when the storage component 3 is located inside the storage cavity 11, it is at least partially located within the magnetization range of the magnetization device 5. That is, when the storage component 3 is located inside the storage cavity 11, it can be that part of the storage component 3 is located within the magnetization range of the magnetization device 5, or all of the storage component 3 is located within the magnetization range; this utility model does not limit this.

[0039] However, it is worth noting that, regardless of the relative position of the storage component 3, it is necessary to ensure that when the storage component 3 is located inside the storage cavity 11, all screwdriver bits 2 installed on the storage component 3 are contained within the effective magnetization range of the magnetization device 5, so that each screwdriver bit 2 can receive sufficient magnetization, thereby ensuring that the magnetization device 5 can achieve a stable and reliable magnetization effect on all screwdriver bits 2.

[0040] The storage component 3 has several slots for holding screwdriver bits 2. To improve the stability of the screwdriver bits 2 and prevent them from falling out of the slots during use and affecting the magnetization effect, a positioning part 4 for fixing the screwdriver bits 2 is provided in the slots.

[0041] Specifically, in this embodiment, the positioning part 4 includes two elastic clamping arms 41 arranged opposite each other. The two elastic clamping arms 41 can be made of elastic materials, such as spring steel or engineering plastics, and are integrally formed or fixedly installed on the storage part 3. A clamping groove 42 for clamping the screwdriver bit 2 is formed between the two elastic clamping arms 41. When the shank of the screwdriver bit 2 is pressed into the clamping groove 42, the two elastic clamping arms 41 undergo elastic deformation under force and open to both sides, thereby generating a continuous clamping force pointing towards the screwdriver bit 2, fixing the screwdriver bit 2 in the clamping groove 42, effectively preventing it from loosening during carrying or magnetization. In other embodiments, the positioning part 4 can also be a buckle, a clamping plate, etc., which is not limited here.

[0042] To further facilitate the user's insertion of the screwdriver bit 2 into the clamping slot 42, a guide ramp 43 is provided on the inner side of the top of the elastic clamping arm 41. The two guide ramps 43 together form a V-shaped guide opening. The V-shaped guide opening guides the screwdriver bit 2 into the clamping slot 42. In actual operation, even if the user does not align it precisely, the screwdriver bit 2, after contacting the V-shaped guide opening, will automatically slide towards and fall into the center of the clamping slot 42 under the action of the guide ramps 43, improving the convenience and speed of changing the screwdriver bit 2.

[0043] To prevent the screwdriver bit 2 from falling out of the positioning part 4 under accidental vibration or axial tension, an anti-dislodgement surface 44 is provided at the bottom of the guide slope 43 to limit the screwdriver bit 2 from disengaging from the clamping groove 42. The anti-dislodgement surface 44 can be a plane perpendicular to the axis of the screwdriver bit 2 or a concave arc surface. When the screwdriver bit 2 is fully inserted into the clamping groove 42, the screwdriver bit 2 will be locked against the anti-dislodgement surface 44. In this way, the screwdriver bit 2 is restricted by the anti-dislodgement surface 44 at the top of the elastic clamping arm 41 and cannot be easily pulled upward. A certain force must be applied to make the elastic clamping arm 41 open again before it can be taken out, thus achieving the anti-dislodgement function.

[0044] Regarding the assembly and disassembly of the storage component 3 and the storage cavity 11: In this embodiment, the opening is located at the tail of the handle 1, and a cover 6 is provided at the tail of the storage component 3. The outer dimensions of the cover 6 are larger than the opening at the tail of the handle 1, thus preventing it from entering the storage cavity 11. The cover 6 has a sealing flange 61 along its circumference. When the storage component 3 is fully pushed into the storage cavity 11, the sealing flange 61 can abut against the end face of the opening, thereby sealing the storage cavity 11. This effectively prevents dust and foreign objects from entering the storage cavity 11 through the opening, protecting the internal magnetizing device 5 and screwdriver bit 2.

[0045] Preferably, in order to achieve a better sealing effect, an annular sealing ring can be provided on the contact surface between the sealing protrusion 61 and the opening end face.

[0046] In addition, for ease of use, the back of the cover 6 is provided with a pull-out section and / or a functional section. The pull-out section can be a recessed finger groove, a pull ring, or a rough, non-slip surface, allowing the user to easily pull the storage component 3 out of the storage cavity 11 by gripping or pinching it with their fingers. The functional section can be a tool that extends the functionality of a screwdriver, such as a window breaker or a hook-and-loop clip; no limitation is made here.

[0047] When it is necessary to replace or retrieve the screwdriver bit 2, the user pulls the storage unit 3 out of the handle 1 through the pull-out part on the back of the cover 6, and removes or replaces the required screwdriver bit 2 from the positioning part 4. Afterwards, the storage unit 3 is pushed back into the storage cavity 11, and locked in place by the locking mechanism. Simultaneously, the sealing flange 61 of the cover 6 tightly abuts against the tail of the handle 1, sealing the entire storage cavity 11. During this process, the screwdriver bit 2 stored in the storage unit 3 is magnetized by the internal magnetizing device 5, ensuring that the screwdriver bit 2 has sufficient magnetism for the next use.

[0048] In other embodiments, to accommodate different users' operating habits, the opening may be formed at the front or side of the handle 1, rather than at the rear. In this case, an end cap is provided on the outside of the opening. The end cap is at least partially detachably connected to the handle 1. Specifically, the end cap can be screwed onto a threaded seat on the outside of the opening by means of a threaded connection; or, the end cap can be secured by a snap-fit ​​that engages with a corresponding slot on the edge of the opening by means of a circumferentially provided buckle; or, the end cap can be magnetically attached to the periphery of the opening, etc., which will not be elaborated here.

[0049] When it is necessary to take out or put away the screwdriver bit 2 or operate the storage component 3, the user can open or remove the end cap to access the interior of the storage cavity 11 through the opening, so as to facilitate the taking out or putting away of the storage component 3. After use, the end cap can be closed or reinstalled to restore the complete appearance of the handle 1 and effectively prevent dust.

[0050] To ensure smooth and stable movement of the storage component 3 during the pulling process, preventing rotation or jamming within the storage cavity 11 of the handle 1, a guide rail extending along the movement path of the storage component 3 is specifically provided on the inner wall of the storage cavity 11. Correspondingly, a guide slider is provided on the storage component 3. The guide slider is slidably connected to the guide rail. The guide rail can be a rib protruding from the inner wall of the storage cavity 11 or a recessed groove, while the guide slider adopts a complementary shape. Through the cooperation of the slider and the rail, precise guidance is provided for the movement of the storage component 3, ensuring that it always moves along a preset straight path.

[0051] Furthermore, to limit the pull-out stroke of the storage component 3 and prevent it from being completely separated from the handle 1 due to excessive pulling, resulting in loss or damage, a limiting structure is provided on the guide rail to restrict the movement path of the storage component 3. Optionally, the limiting structure can be a stop at the end of the guide rail. When the user pulls the storage component 3 outward, the guide slider slides along the guide rail until it reaches the end and hits the stop. At this point, the storage component 3 is blocked and cannot move further outward, but most of its length has been pulled out, sufficient to pick up and put away the screwdriver bit 2. This design improves the overall integrity and safety of the product while ensuring functionality.

[0052] To ensure that the storage component 3 will not accidentally come out during use and carrying, the screwdriver of this utility model is also equipped with a locking structure. Specifically, when the storage component 3 is fully pushed into the storage cavity 11, the locking structure can lock the storage component 3, restricting the relative movement between the storage component 3 and the storage cavity 11.

[0053] In one specific embodiment, the locking structure may include a magnet disposed at the front end of the storage component 3 and a magnetic attraction component disposed at the innermost part of the storage cavity 11, achieving locking through magnetic attraction. In another embodiment, the locking structure may also be an elastic locking point disposed on the side wall of the storage component 3 engaging with a corresponding slot on the inner wall of the storage cavity 11, creating a locking engagement when pushed into place to achieve mechanical locking, etc. The specific structure of the locking structure will not be described here, as long as the locking structure can achieve the locking effect on the storage component 3.

[0054] In a preferred embodiment, the magnetizing device 5 includes at least one magnet assembly. Specifically, the magnet assembly includes two magnet units 51 disposed opposite to each other on the inner wall of the storage cavity 11. The two magnet units 51 can be embedded or fixedly installed on both sides of the inner wall of the storage cavity 11, and the installation position of the magnet units 51 corresponds to the section on the receiving component 3 where the screwdriver bit 2 is fixed.

[0055] It is worth noting that the two magnetic units 51 have opposite magnetisms; that is, the N pole of one magnetic unit 51 faces the inside of the storage cavity 11, while the S pole of the other magnetic unit 51 faces the inside of the storage cavity 11. Through this special arrangement, a magnetized region is formed between the two magnetic units 51, and a strong magnetic field with a clear direction is formed within the magnetized region.

[0056] When the user pushes or pulls the storage unit 3, which holds the screwdriver bit 2, into or out of the storage cavity 11, the screwdriver bit 2 passes through the magnetized area. During this process, the magnetic domains inside the ferromagnetic material of the screwdriver bit 2 are reoriented and aligned by the strong magnetic field of the magnetized area, thus becoming fully magnetized. The screwdriver bit 2 is magnetized as it passes through the magnetized area, ensuring that it acquires stable and sufficient magnetism before each use.

[0057] To enhance the magnetization effect, multiple magnet groups can be spaced apart along the axial direction of the storage cavity 11. For example, one group can be set at the beginning and end of the stroke of the storage component 3 to ensure that the screwdriver bit 2 can be continuously magnetized in the magnetic field during storage after it is fully pushed into the storage cavity 11; or, a longer magnet unit 51 can be set to make the magnetization area cover a longer path, allowing the screwdriver bit 2 to undergo a longer magnetization process.

[0058] In other embodiments, the magnetizing device 5 can be a ring-shaped permanent magnet. The ring-shaped magnet can be fixedly sleeved on the inner wall of the storage cavity 11, and the central hole of the ring-shaped magnet constitutes the magnetizing area. Alternatively, the magnetizing device 5 can also be a magnetizing coil wound around a portion of the storage cavity 11, etc., which will not be elaborated here.

[0059] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A screwdriver, characterized in that, include: A handle (1) and a screwdriver bit (2) detachably connected to the handle (1), the handle (1) having a storage cavity (11) inside, and an opening communicating with the storage cavity (11) formed on the handle (1); The screwdriver bit (2) is stored or taken out of the storage cavity (11) through the opening. A magnetizing device (5) is provided in the storage cavity (11) for magnetizing the screwdriver bit (2) stored in the storage cavity (11).

2. The screwdriver according to claim 1, characterized in that, It also includes a storage component (3), in which the screwdriver bit (2) can be placed. The storage component (3) is located inside the storage cavity (11), or can be at least partially removed from the storage cavity (11) through the opening. When the storage component (3) is located inside the storage cavity (11), it is at least partially within the magnetization range of the magnetization device (5).

3. The screwdriver according to claim 2, characterized in that, The opening is located at the tail of the handle (1), and the tail of the storage component (3) is provided with a cover (6). The cover (6) is provided with a sealing protrusion (61) along its circumference. When the storage component (3) is fully pushed into the storage cavity (11), the sealing protrusion (61) can abut against the end face of the opening, thereby sealing the storage cavity (11).

4. The screwdriver according to claim 2, characterized in that, An end cap is provided on the outside of the opening, and the end cap is at least partially detachably connected to the handle.

5. The screwdriver according to claim 3, characterized in that, The inner wall of the storage cavity (11) is provided with a guide slide rail extending along the moving path of the storage component (3). A guide slider is correspondingly provided on the storage component (3), and the guide slider is slidably connected to the guide slide rail. A limit structure is provided on the guide slide rail to limit the moving path of the storage component (3).

6. The screwdriver according to claim 1, characterized in that, The magnetizing device (5) includes at least one magnet group, which includes two magnet units (51) disposed opposite to each other on the inner wall of the storage cavity (11), and the two magnet units (51) have opposite magnetisms. A magnetizing area is formed between the two magnet units (51), and the screwdriver bit (2) can be magnetized when it passes through the magnetizing area.

7. The screwdriver according to claim 2, characterized in that, The storage component (3) is provided with several placement slots, and the placement slots are provided with positioning parts (4) for fixing the screwdriver bits (2).

8. The screwdriver according to claim 7, characterized in that, The positioning part (4) includes two elastic clamping arms (41) arranged opposite to each other, and a clamping groove (42) for clamping the screwdriver bit (2) is formed between the two elastic clamping arms (41).

9. The screwdriver according to claim 8, characterized in that, The top inner side of the elastic clamping arm (41) is provided with a guide slope (43), and the two guide slopes (43) together form a V-shaped guide opening for guiding the screwdriver bit (2) into the clamping groove (42).

10. The screwdriver according to claim 9, characterized in that, The bottom of the guide slope (43) is provided with an anti-dislodgement surface (44) for preventing the screwdriver bit (2) from disengaging from the clamping groove (42).

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