Articulated type splicable hand tool

Abstract

The utility model belongs to the technical field of hand tools, disclose a kind of articulated type splicing hand tools, including multiple splicing units, form spherical hinge between adjacent two splicing units, allow articulated type splicing hand tools to realize partial bending, when use in narrow or space with obstacle, staff can flexibly bend tool, and accurate delivery head reaches work position.Installation portion is set to plane along the two sides of second direction, the shape of installation portion accommodating groove is compatible with the shape of installation portion, so that installation portion and installation portion accommodating groove can effectively transmit torque without relative rotation.The inner diameter of head accommodating groove is greater than the outer diameter of head, so that head can move in head accommodating groove.The multiple splicing units of articulated type splicing hand tools can be spliced head to tail along the first direction, form a compact whole, facilitate to carry and store outside, avoid single head to be easily lost.

Description

Technical Field

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

[0002] Screwdrivers and hex wrenches are common mechanical fastening tools. They are used by attaching them to the inside of screws or bolts and rotating them to install or remove them. Current screwdrivers and hex wrenches typically consist of a single shaft with a fixed or detachable cutting head. When the shaft and cutting head are detachable, carrying the screwdriver or hex wrench requires carrying the shaft and cutting head separately, which is inconvenient and the cutting head is easily lost.

[0003] The related technology discloses a modular screwdriver, which consists of a set of small screwdrivers connected together. Each small screwdriver includes a blade and a handle. The blade is fixedly connected to the front end of the fixed part of the handle. The rear end of the fixed part is hollow and is fixedly connected to an outer shell. The front and rear ends of the fixed part and the outer shell are respectively stepped. Adjacent small screwdrivers are inserted and fixed, making them easy to use and store.

[0004] However, once the individual screwdrivers of the aforementioned modular screwdriver are inserted and fixed, their relative positions are fixed. In actual use, partial bending is not possible, which makes it impossible to effectively avoid interference from external parts, wiring, or brackets. This severely limits the application of the aforementioned modular screwdriver in complex and narrow spaces. Utility Model Content

[0005] The purpose of this invention is to provide a hinged, modular hand tool to solve the technical problem that existing modular screwdrivers cannot achieve partial bending and therefore cannot effectively avoid interference from external parts, wiring, or supports.

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

[0007] Articulated, modular hand tools, including:

[0008] Multiple splicing units are provided, each of which includes a base and a cutting head connected along a first direction. The base includes a mounting portion and a receiving portion distributed along the first direction. The mounting portion has a frustum-shaped structure, and both sides of the mounting portion along a second direction are set as planes, the second direction being perpendicular to the first direction. The cutting head is connected to the end of the mounting portion away from the receiving portion along the first direction. The cutting head extends along the first direction. The receiving portion has a receiving groove with an opening facing the side away from the cutting head along the first direction. The receiving groove along the first direction consists of a cutting head receiving groove and a mounting portion receiving groove, which are sequentially arranged from the end near the cutting head to the end away from the cutting head. The cutting head receiving groove is configured to receive the cutting head and has an inner diameter larger than the outer diameter of the cutting head. The shape of the mounting portion receiving groove is adapted to the shape of the mounting portion. The mounting portion and the mounting portion receiving groove form a ball joint.

[0009] Optionally, the mounting portion has a mounting groove at one end away from the receiving portion along the first direction, the mounting groove having an opening facing the side away from the receiving portion along the first direction, and the cutting head is detachably anti-rotationally connected to the opening of the mounting groove.

[0010] Optionally, the connection between the cutter head and the mounting slot can be one of plug-in, snap-fit, or magnetic connection.

[0011] Optionally, when the connection between the cutting head and the mounting groove is a plug-in or magnetic connection, the cross-section of the mounting groove along the second direction is non-circular, and the cross-section of the cutting head along the second direction is adapted to the cross-section of the mounting groove.

[0012] Optionally, the outer contour of the receiving portion is a frustum-shaped structure, and the outer diameter of the frustum-shaped structure increases along the first direction from the end closer to the mounting portion to the end farther away from the mounting portion.

[0013] Optionally, the inner wall of the mounting portion receiving groove is inlaid with a magnetic element, and the mounting portion is made of a ferromagnetic material that can be attracted by the magnetic element.

[0014] Optionally, the mounting part has a first through hole along the second direction, and the groove wall of the mounting part receiving groove has a second through hole at a corresponding position. The mounting part also includes a reinforcing rod, which can be inserted into both the second through hole and the first through hole simultaneously.

[0015] Optionally, the blades of the plurality of splicing units are one or more of the following: straight blades, cross blades, star blades, hexagonal blades, square blades, or triangular blades.

[0016] Optionally, the outer surface of the cutter head is coated with a wear-resistant and corrosion-resistant coating, which is a ceramic coating or a tungsten alloy coating.

[0017] Optionally, an anti-slip pad is provided on the outer periphery of the receiving part.

[0018] The beneficial effects of this utility model are:

[0019] This invention provides a hinged, modular hand tool comprising multiple modular units. Adjacent modular units form a ball joint, allowing for partial bending. When used in narrow or obstructed spaces, the operator can flexibly bend the tool to precisely deliver the blade to the work position. Furthermore, the mounting portion has two planar sides along a second direction, and the shape of the mounting portion's receiving groove matches the shape of the mounting portion, enabling effective torque transmission between the mounting portion and the receiving groove without relative rotation. The inner diameter of the blade receiving groove is larger than the outer diameter of the blade, allowing the blade to move within the receiving groove without damage when one modular unit rotates relative to another. The multiple modular units of this hinged, modular hand tool can be joined end-to-end along a first direction to form a compact unit, facilitating carrying and storage while preventing the loss of individual blades. Attached Figure Description

[0020] Figure 1 This is a structural schematic diagram of the articulated, connectable hand tool described in this embodiment of the utility model;

[0021] Figure 2 This is a side view of the articulated, connectable hand tool described in this embodiment of the utility model;

[0022] Figure 3 yes Figure 2 Sectional view along AA;

[0023] Figure 4 This is a schematic diagram of the splicing unit described in an embodiment of the present invention;

[0024] Figure 5 This is a front view of the splicing unit described in this embodiment of the utility model;

[0025] Figure 6 yes Figure 5 Sectional view along AA.

[0026] In the picture:

[0027] 1. Splicing unit; 11. Base; 111. Mounting part; 112. Receiving part; 113. Receiving groove; 114. Mounting groove; 12. Cutting head. Detailed Implementation

[0028] 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.

[0029] 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.

[0030] 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.

[0031] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0032] like Figures 1 to 6As shown, this utility model provides a hinged, modular hand tool, comprising multiple modular units 1. Each modular unit 1 includes a base 11 and a cutting head 12 connected along a first direction (X direction in the figure). The base 11 includes a mounting portion 111 and a receiving portion 112 distributed along the first direction. The mounting portion 111 has a frustum-shaped structure, and both sides of the mounting portion 111 along a second direction (Y direction in the figure) are set as planes, with the second direction perpendicular to the first direction. The cutting head 12 is connected to the end of the mounting portion 111 away from the receiving portion 112 along the first direction, and the cutting head 12 extends along the first direction. The receiving portion 112 has a receiving groove 113, which has an opening facing the side away from the cutting head 12 along the first direction. The receiving groove 113 is arranged in a first direction from one end near the cutter head 12 to the other end away from the cutter head 12 as a cutter head receiving groove and a mounting part receiving groove. The cutter head receiving groove is configured to receive the cutter head 12 and its inner diameter is larger than the outer diameter of the cutter head 12. The shape of the mounting part receiving groove is adapted to the shape of the mounting part 111. The mounting part 111 and the mounting part receiving groove form a ball joint.

[0033] This articulated, modular hand tool features a ball joint between two adjacent splicing units 1, allowing for partial bending. When used in confined or obstructed spaces, the operator can flexibly bend the tool to precisely deliver the blade 12 to the work position. Furthermore, the mounting portion 111 has two planar sides along the second direction, and the shape of the mounting portion receiving groove matches the shape of the mounting portion 111, enabling effective torque transmission between the mounting portion 111 and the mounting portion receiving groove without relative rotation. The inner diameter of the blade receiving groove is larger than the outer diameter of the blade 12, allowing the blade 12 to move within the blade receiving groove without damage when one splicing unit 1 rotates relative to another splicing unit 1. Multiple splicing units 1 of this articulated, modular hand tool can be spliced ​​end-to-end along the first direction to form a compact unit, facilitating carrying and storage while preventing the easy loss of individual blades 12.

[0034] Optionally, such as Figure 6 As shown, the mounting part 111 has a mounting groove 114 at the end away from the receiving part 112 along the first direction. The mounting groove 114 has an opening facing the side away from the receiving part 112 along the first direction. The cutting head 12 is detachably anti-rotationally connected to the opening of the mounting groove 114. The cutting head 12 and the mounting part 111 are quickly and detachably connected, allowing operators to replace different types of cutting heads 12 on a single base 11 as needed, greatly expanding the applicable scenarios of articulated, modular hand tools. The anti-rotation connection ensures that the torque from the base 11 to the cutting head 12 can be effectively and without loss.

[0035] Specifically, the connection between the cutter head 12 and the mounting slot 114 is one of plug-in, snap-fit, or magnetic connection. Plug-in connection is simple in structure, easy to operate, and reduces the production cost of the splicing unit 1. Snap-fit ​​connection makes the connection between the cutter head 12 and the mounting slot 114 more secure. Magnetic connection allows for quick and easy replacement of the cutter head 12, offering high operational convenience. When operating space is limited, magnetic connection also helps to stably hold the cutter head 12 within the mounting slot 114.

[0036] Furthermore, when the connection between the cutter head 12 and the mounting groove 114 is a plug-in or magnetic connection, the cross-section of the mounting groove 114 along the second direction is non-circular, and the cross-section of the cutter head 12 along the second direction matches the cross-section of the mounting groove 114. This structural design effectively prevents relative rotation between the cutter head 12 and the mounting groove 114. For example, the cross-sections of the mounting groove 114 and the cutter head 12 along the second direction can be hexagonal or triangular, or other non-circular shapes.

[0037] For example, such as Figure 1 , Figure 2 or Figure 4 As shown, the outer contour of the receiving part 112 is a frustum-shaped structure, and the outer diameter of the frustum-shaped structure increases from the end closer to the mounting part 111 to the end farther away from the mounting part 111 along the first direction. The frustum-shaped structure conforms to the human hand grip curve, providing a comfortable and stable grip for workers and preventing slippage. For processes such as injection molding, the frustum-shaped structure has no undercuts, which facilitates mold opening and product demolding, and helps reduce production costs.

[0038] Optionally, the inner wall of the mounting section receiving groove is inlaid with a magnetic element, and the mounting section 111 is made of a ferromagnetic material that can be attracted by the magnetic element. The magnetic connection can provide a slight holding force at various angles of the ball joint, allowing the articulated splicing hand tool to maintain its current bent shape when no external force is applied, facilitating positioning and operation by the worker. The magnetic connection makes the joint of two adjacent splicing units 1 tighter, helping to reduce possible noise and shaking during operation. When splicing two splicing units 1 together, the magnetic force can guide and attract, making the splicing operation smoother.

[0039] For example, the mounting part 111 has a first through hole along the second direction, and the groove wall of the mounting part receiving groove has a second through hole at a corresponding position. The mounting part 111 also includes a reinforcing rod, which can be inserted into both the second and first through holes simultaneously. When dealing with very tight screws or when maximum torque transmission is required, the user can insert the reinforcing rod to temporarily transform the ball hinge into a rigid connection, eliminating torque loss and potential sway caused by bending, and ensuring maximum operating force and stability. When it is necessary to bypass an obstacle, the reinforcing rod can be pulled out to restore flexibility.

[0040] Optionally, the cutter heads 12 of the multiple splicing units 1 can be one or more of the following: flathead cutter heads, cross cutter heads, star cutter heads, hexagonal cutter heads, square cutter heads, or triangular cutter heads. By equipping various sizes and types of cutter heads 12, workers can customize the splicing sequence of each splicing unit 1 according to the type of screw or bolt, enabling the articulated splicable hand tool to meet the needs of different scenarios and improving its practical value.

[0041] Furthermore, the outer surface of the cutter head 12 is coated with a wear-resistant and corrosion-resistant coating, which is either a ceramic coating or a tungsten alloy coating. The wear-resistant coating greatly improves the hardness and durability of the cutter head 12, making it less prone to wear and chipping, especially suitable for scenarios involving frequent use or handling rusty screws. The corrosion-resistant coating can withstand humid and corrosive environments.

[0042] Optionally, an anti-slip pad is provided on the outer periphery of the receiving part 112. The anti-slip pad ensures that even when hands are oily or sweaty, workers can firmly grip the articulated, modular hand tools, preventing slippage and hand injury or damage to the workpiece when applying force.

[0043] 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 hinged, modular hand tool, characterized in that, include: Multiple splicing units (1), each splicing unit (1) includes a base (11) and a cutter head (12) connected along a first direction. The base (11) includes a mounting portion (111) and a receiving portion (112) distributed along the first direction. The mounting portion (111) has a frustum-shaped structure, and the two sides of the mounting portion (111) along a second direction are set as planes, the second direction being perpendicular to the first direction. The cutter head (12) is connected to one end of the mounting portion (111) away from the receiving portion (112) along the first direction. The cutter head (12) extends along the first direction. The receiving part (112) is provided with a receiving groove (113), the receiving groove (113) having an opening facing away from the cutter head (12) along the first direction. The receiving groove (113) is a cutter head receiving groove and a mounting part receiving groove in sequence from the end near the cutter head (12) to the end away from the cutter head (12) along the first direction. The cutter head receiving groove is configured to receive the cutter head (12) and its inner diameter is larger than the outer diameter of the cutter head (12). The shape of the mounting part receiving groove is adapted to the shape of the mounting part (111). The mounting part (111) and the mounting part receiving groove form a ball joint.

2. The articulated, modular hand tool according to claim 1, characterized in that, The mounting part (111) has a mounting groove (114) at one end away from the receiving part (112) along the first direction. The mounting groove (114) has an opening facing away from the receiving part (112) along the first direction. The blade (12) is detachably anti-rotationally connected to the opening of the mounting groove (114).

3. The articulated, modular hand tool according to claim 2, characterized in that, The connection between the blade (12) and the mounting groove (114) is one of plug-in, snap-fit, or magnetic connection.

4. The articulated, modular hand tool according to claim 3, characterized in that, When the connection between the cutting head (12) and the mounting groove (114) is a plug-in or magnetic connection, the cross section of the mounting groove (114) along the second direction is non-circular, and the cross section of the cutting head (12) along the second direction is adapted to the cross section of the mounting groove (114).

5. The articulated, modular hand tool according to claim 1, characterized in that, The outer contour of the receiving part (112) is a frustum-shaped structure, and the outer diameter of the frustum-shaped structure increases along the first direction from the end closer to the mounting part (111) to the end farther away from the mounting part (111).

6. The articulated, modular hand tool according to claim 1, characterized in that, The inner wall of the mounting section receiving groove is inlaid with a magnetic attractor, and the mounting section (111) is made of a ferromagnetic material that can be attracted by the magnetic attractor.

7. The articulated, modular hand tool according to claim 1, characterized in that, The mounting part (111) has a first through hole along the second direction, and the groove wall of the mounting part receiving groove has a second through hole at the corresponding position. The mounting part (111) also includes a reinforcing rod, which can be inserted into both the second through hole and the first through hole at the same time.

8. The articulated, modular hand tool according to any one of claims 1-7, characterized in that, The blades (12) of the multiple splicing units (1) are one or more of the following: straight blade, cross blade, star blade, hexagonal blade, square blade or triangular blade.

9. The articulated, modular hand tool according to any one of claims 1-7, characterized in that, The outer surface of the cutter head (12) is coated with a wear-resistant and corrosion-resistant coating, which is a ceramic coating or a tungsten alloy coating.

10. The articulated, modular hand tool according to any one of claims 1-7, characterized in that, An anti-slip pad is provided on the outer periphery of the receiving part (112).

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