Disassembling tool
By designing a cutting head with specific bevels and rounded corners, effective disassembly of sliding screws is achieved, solving the problem that existing tools cannot remove sliding screws, and reducing product scrapping rate.
Patent Information
- Application Number
- CN202421396547.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-18
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-06-18
AI Technical Summary
Existing disassembly tools cannot effectively remove the screws on the product, resulting in a high product scrap rate.
A disassembly tool including a handle and a tool is designed, and the cutting head of the tool has two first bevels and two second bevels arranged opposite to each other. Through the design of these bevels and rounded corners, the end face of the cutting head can cut into the screws, and as the depth becomes deeper, the contact area gradually increases to connect and remove the screws.
By cutting screws with smaller thickness and rounded corners, the screws of sliding teeth can be easily removed, reducing product scrap rate and improving product quality.
Smart Images
Figure CN222806926U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of disassembly tools, and in particular to a disassembly tool. Background Art
[0002] Screws often become loose during use. If the loose screws are not replaced, the product quality will not meet the shipping standards, resulting in product scrapping. However, existing disassembly tools cannot remove the loose screws on the product, resulting in a high scrap rate of the product. Utility Model Content
[0003] In view of this, it is necessary to provide a disassembly tool that can disassemble the screw with slipped threads.
[0004] In one embodiment of the present application, a disassembly tool is provided for removing screws, comprising a handle and a tool, wherein the tool is connected to the handle, and the tool comprises a tool head, wherein the tool head has two first inclined surfaces arranged opposite to each other and two second inclined surfaces arranged opposite to each other, wherein the distance between the two first inclined surfaces gradually decreases toward the end of the tool head, and the two second inclined surfaces are connected between the two first inclined surfaces, wherein the distance between the two second inclined surfaces gradually decreases toward the end of the tool head, and the two second inclined surfaces and the two first inclined surfaces form an end surface at the end of the tool head, and each second inclined surface has a rounded corner with the end surface.
[0005] The above-mentioned disassembly tool is connected to the tool through a handle so that the user can hold the handle to drive the end face of the cutter head to act on the screw. The two first bevels make the thickness of the end face of the cutter head smaller so that the end face of the cutter head can cut into the screw; the two second bevels and the rounded corners make the initial contact area between the end face and the screw smaller, making it easier for the end face of the cutter head to cut into the screw. As the depth of the cutter head cutting into the screw increases, the contact area between the cutter head and the screw gradually increases to connect the screw; the user holds the handle to drive the tool to rotate to drive the screw to rotate. When the threaded screw on the product is slipped, the end face with a smaller thickness and rounded corners can cut into the head of the screw, so that the head of the screw re-forms a groove that fits the cutter head to connect the cutter head, and under the drive of the handle, the cutter head rotates relative to the product, so that the screw can be disassembled by the disassembly tool.
[0006] In some embodiments, the angle between the two second inclined surfaces is α, and 30°≤α≤40°.
[0007] In some embodiments, the maximum distance between the two second bevels is L1, the minimum distance between the two second bevels is L2, the length of the second bevel in the axial direction of the tool is L3, the radius of the fillet is R1, and L1:L2:L3:R1=4:7:5:2.
[0008] In some embodiments, the angle between the two first inclined surfaces is β, and 15°≤β≤25°.
[0009] In some embodiments, the thickness of the end surface in the spacing direction between the two first inclined surfaces is less than 0.1 mm.
[0010] In some embodiments, a length of the first bevel in the axial direction of the tool is greater than a length of the second bevel in the axial direction of the tool.
[0011] In some embodiments, the disassembly tool further includes a socket, the tool further includes an extension portion, the extension portion is connected to the tool head, the handle has a slot for accommodating the extension portion, the socket is sleeved on the handle and can reduce the size of the slot to clamp the extension portion.
[0012] In some embodiments, the handle is provided with a notch connected to the slot, and the extension direction of the notch is parallel to the axial direction of the tool. When the socket is sleeved on the handle, the handle contracts through the notch to clamp the extension portion.
[0013] In some embodiments, the handle is further provided with a guide groove connected to the slot, the extension direction of the guide groove is parallel to the axial direction of the tool, the extension portion is provided with a protrusion, the protrusion is connected to the guide groove along the axial direction of the tool, so that the extension portion can be inserted into the slot, and when the socket is sleeved on the handle, the handle contracts through the guide groove to clamp the extension portion.
[0014] In some embodiments, the handle includes a threaded connection portion and a clamping portion, the threaded connection portion is used to threadably connect the socket, and the guide groove passes through the clamping portion and the threaded connection portion along the axial direction of the tool. When the socket is sleeved on the handle, the inner wall of the socket presses against the clamping portion to cause the guide groove to contract to clamp the extension portion. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the structure of a disassembly tool in one embodiment of the present application.
[0016] Figure 2 for Figure 1 Schematic diagram of the structure of the tool head in the disassembly tool.
[0017] Figure 3 for Figure 1 Front view of the cutter head in the disassembly tool.
[0018] Figure 4 for Figure 1 Side view of the tool head in the disassembly tool.
[0019] Figure 5 for Figure 1 Exploded view of the disassembly tool.
[0020] Figure 6 for Figure 1 Another view of the exploded view of the disassembly tool.
[0021] Figure 7 for Figure 1 Cross-sectional view of the disassembly tool.
[0022] Figure 8 for Figure 1 Schematic diagram of the structure of the disassembly tool after the handle is connected to the tool.
[0023] Fig. 9 for Figure 1 Schematic diagram of the use of disassembly tools.
[0024] Main component symbols
[0025] Disassembly tools 100
[0026] Handle 10
[0027] Grip 11
[0028] Threaded connection 12
[0029] Clamping part 13
[0030] Gap 131
[0031] Guide groove 132
[0032] Slot 101
[0033] Tool 20
[0034] Extension 21
[0035] Bump 211
[0036] Segment 22
[0037] End face 2201
[0038] The first inclined surface 221
[0039] Second slope 222
[0040] Rounded Corner 223
[0041] Socket 30
[0042] Screw 200
[0043] Axial
[0044] First direction b
[0045] The second direction c DETAILED DESCRIPTION
[0046] The technical solution of the present application will be described below in conjunction with the drawings in the implementation modes of the present application. Obviously, the described implementation modes are only part of the implementation modes of the present application, rather than all the implementation modes.
[0047] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time.
[0048] The term "perpendicular" is used to describe the ideal state between two components. In actual production or use, the two components may be approximately perpendicular to each other. The two components described as "perpendicular" may not be absolutely straight lines or planes, but may be roughly straight lines or planes. From a macroscopic point of view, the components can be considered "straight lines" or "planes" if the overall extension direction is a straight line or a plane.
[0049] 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 this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "or / and" used herein includes any and all combinations of one or more of the related listed items.
[0050] Screws often become loose during use. If the loose screws are not replaced, the product quality will not meet the shipping standards, resulting in product scrapping. However, existing disassembly tools cannot remove the loose screws on the product, resulting in a high scrap rate of the product.
[0051] In view of this, it is necessary to provide a disassembly tool that can disassemble screws with loose threads. The disassembly tool is used to disassemble the screws, and includes a handle and a tool, the tool is connected to the handle, and the tool includes a tool head, the tool head has two first inclined surfaces arranged opposite to each other and two second inclined surfaces arranged opposite to each other, the distance between the two first inclined surfaces gradually decreases toward the end of the tool head, the two second inclined surfaces are connected between the two first inclined surfaces, the distance between the two second inclined surfaces gradually decreases toward the end of the tool head, the two second inclined surfaces and the two first inclined surfaces form an end surface at the end of the tool head, and each second inclined surface has a rounded corner with the end surface.
[0052] The above-mentioned disassembly tool is connected to the tool through a handle so that the user can hold the handle to drive the end face of the cutter head to act on the screw. The two first bevels make the thickness of the end face of the cutter head smaller so that the end face of the cutter head can cut into the screw; the two second bevels and the rounded corners make the initial contact area between the end face and the screw smaller, making it easier for the end face of the cutter head to cut into the screw. As the depth of the cutter head cutting into the screw increases, the contact area between the cutter head and the screw gradually increases to connect the screw; the user holds the handle to drive the tool to rotate to drive the screw to rotate. When the threaded screw on the product is slipped, the end face with a smaller thickness and rounded corners can cut into the head of the screw, so that the head of the screw re-forms a groove that fits the cutter head to connect the cutter head, and under the drive of the handle, the cutter head rotates relative to the product, so that the screw can be disassembled by the disassembly tool.
[0053] Some embodiments of the present application are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.
[0054] See also Figure 1 and Fig. 9 In one embodiment of the present application, a disassembly tool 100 is provided for disassembling a screw 200, which is threadedly connected to a product. As an exemplary example, the product is a mobile phone, and the disassembly tool 100 cuts into the head of the screw 200 to connect the screw 200, and drives the screw 200 to rotate relative to the product, thereby disassembling the screw 200 connected to the product.
[0055] In some embodiments, the disassembly tool 100 includes a handle 10 and a cutter 20. The handle 10 is used to be held by a user, so that the user can drive the cutter 20 to move. The cutter 20 is connected to the handle 10 and is used to act on the screw 200.
[0056] In some embodiments, the tool 20 includes a tool head 22. Figures 2 to 4 The cutter head 22 has two first inclined surfaces 221 and two second inclined surfaces 222 disposed opposite to each other. The two second inclined surfaces 222 are connected between the two first inclined surfaces 221. The two second inclined surfaces 222 and the two first inclined surfaces 221 form an end surface 2201 at the end of the cutter head 22. Figure 4 The distance between the two first inclined surfaces 221 gradually decreases toward the end of the cutter head 22, so that an end surface 2201 with a smaller thickness can be formed so that the end surface 2201 can cut into the screw 200. Figure 3The distance between the two second inclined surfaces 222 gradually decreases toward the end of the cutter head 22, so that the contact area between the cutter head 22 and the screw 200 gradually increases during the process of the end surface 2201 cutting into the screw 200. There is a rounded corner 223 between each second inclined surface 222 and the end surface 2201, so that the initial contact area between the end surface 2201 and the screw 200 is smaller, making it easier for the end surface 2201 to cut into the screw 200.
[0057] See also Fig. 9 When it is necessary to remove the screw 200 with a slipped thread on the product, the user holds the handle 10 and drives the end face 2201 of the cutter head 22 to apply force to the head of the screw 200, so that the cutter head 22 gradually cuts into the head of the screw 200 along the axial direction a of the cutter 20, and the contact area between the cutter head 22 and the head of the screw 200 gradually increases to connect the screw 200. The user holds the handle 10 and drives the handle 10 and the cutter head 22 to rotate, so that the cutter head 22 drives the screw 200 to rotate relative to the product, thereby removing the screw 200 from the product.
[0058] In some embodiments, see Figures 2 to 4 , two first inclined surfaces 221 are arranged at intervals along a first direction b to form an end surface 2201 and a tool head 22 with a certain thickness. Two second inclined surfaces 222 are arranged at intervals along a second direction c to form an end surface 2201 and a tool head 22 with a certain width. The first direction b and the second direction c are perpendicular to each other. The axial direction a of the tool 20 is perpendicular to the first direction b and the second direction c. The first inclined surface 221 and the second inclined surface 222 are both arranged at an inclination.
[0059] In some embodiments, see Figure 3 , the angle between the two second bevels 222 is α, 30°≤α≤40°. When the other dimensions of the cutter head 22 and the radius of the fillet 223 are constant, the smaller the angle α between the two second bevels 222, the smaller the width of the end face 2201, the smaller the initial contact area between the end face 2201 and the screw 200, and the easier it is for the cutter head 22 to cut into the screw 200. The cutter head 22 cuts into the head of the screw 200 through the end face 2201, and two second bevels 222 forming the angle α are provided. In the process of the cutter head 22 cutting into the screw 200 along the axial direction a of the tool 20, as the depth of the cutter head 22 cutting into the screw 200 increases, the width of the part where the cutter head 22 cuts into the screw 200 gradually increases, which can gradually and stably connect the cutter head 22 and the screw 200 so that the cutter head 22 drives the screw 200 to rotate relative to the product.
[0060] In some embodiments, the angle α between the two second inclined surfaces 222 is 2arctan0.3°. α is approximately equal to 33.4°, which not only provides the cutter head 22 with sufficient strength, but also enables the cutter head 22 to gradually cut into the screw 200 .
[0061] In some embodiments, see Figure 4 , the angle between the two first bevels 221 is β, 15°≤β≤25°. When other dimensions of the cutter head 22 are constant, the smaller the angle β between the two first bevels 221, the smaller the thickness of the end face 2201, the smaller the initial contact area between the end face 2201 and the screw 200, and the easier it is for the cutter head 22 to cut into the screw 200. The cutter head 22 cuts into the head of the screw 200 through the end face 2201, and two first bevels 221 forming the angle β are provided. In the process of the cutter head 22 cutting into the screw 200 along the axial direction a of the tool 20, as the depth of the cutter head 22 cutting into the screw 200 increases, the thickness of the part where the cutter head 22 cuts into the screw 200 gradually increases, which can gradually and stably connect the cutter head 22 and the screw 200 so that the cutter head 22 drives the screw 200 to rotate relative to the product.
[0062] As an illustrative example, the angle β between the two first inclined surfaces 221 is 20°, which not only ensures that the cutter head 22 has sufficient strength, but also enables the cutter head 22 to gradually cut into the screw 200 .
[0063] In some embodiments, see Figures 2 to 4 , the thickness of the end face 2201 in the spacing direction of the two first inclined surfaces 221 is less than 0.1 mm. The end face 2201 less than 0.1 mm thick can easily cut into the head of the screw 200. It can be understood that when the thickness of the end face 2201 is smaller, the initial contact area between the end face 2201 and the screw 200 is smaller, and the cutter head 22 can cut into the screw 200 more easily. Through a large number of experiments or simulations, it is found that when the angle β between the two first inclined surfaces 221 is 20°, the thickness of the end face 2201 in the first direction b is less than 0.1 mm, and it can cut into the head of the screw 200.
[0064] In some embodiments, the maximum distance between the two second bevels 222 is L1, the minimum distance between the two second bevels 222 is L2, the length of the second bevel 222 in the axial direction a of the tool 20 is L3, the radius of the fillet 223 is R1, L1: L2: L3: R1 = 4: 7: 5: 2. Such a cutter head 22 has an appropriate thickness, a reasonable inclination of the second bevel 222, and a reasonable strength, and can gradually cut into the screw 200 along the axial direction a of the tool 20, so that the cutter head 22 is connected to the screw 200 and drives the screw 200 to rotate relative to the product.
[0065] In some embodiments, for example, see Figure 3 , L1 is 1.4 mm. L2 is 0.8 mm. L3 is 1 mm. R1 is 0.4 mm. Such a cutter head 22 can cut into the screw 200 connected to the product, so that the screw 200 is rotated relative to the product, so as to remove the screw 200 connected to the product.
[0066] In some embodiments, the length of the first bevel 221 in the axial direction a of the tool 20 is greater than the length of the second bevel 222 in the axial direction a of the tool 20. This ensures the strength of the tool head 22 to a certain extent. Figure 2 In the axial direction a, the length of the second bevel 222 is half the length of the first bevel 221, so that the end of the cutter head 22 can cut into the screw 200. The farther the distance from the end, the greater the thickness and width of the cutter head 22, so that the strength of the cutter head 22 is sufficient and the cutter head 22 is not easily damaged.
[0067] In some embodiments, see Figure 1 , Figure 5 and Figure 6 , the disassembly tool 100 also includes a socket 30. The socket 30 is cylindrical. The tool 20 also includes an extension portion 21. The extension portion 21 extends along the axial direction a of the tool 20, and the extension portion 21 is fixedly connected to the tool head 22. The handle 10 has a slot 101 that can accommodate the extension portion 21. The socket 30 is sleeved on the handle 10, and can reduce the size of the slot 101 to clamp the extension portion 21. The tool 20 is plugged into the handle 10 through the extension portion 21, and the tool 20 connected to the handle 10 can be replaced, and the tool 20 can be fixed to the handle 10 through the socket 30. As an illustrative example, the slot 101 is cylindrical, and the socket 30 is sleeved on the outer periphery of the handle 10, so that the size of the slot 101 can be reduced, and the side wall of the slot 101 can clamp the extension portion 21, thereby completing the connection between the tool 20 and the handle 10.
[0068] In some embodiments, see Figure 5 The handle 10 is provided with a notch 131 at the slot 101, which is connected to the slot 101. The extending direction of the notch 131 is parallel to the axial direction a of the tool 20. When the sleeve 30 is sleeved on the handle 10, the handle 10 contracts through the notch 131 to clamp the extension portion 21. There are two notches 131, which are arranged opposite to each other and divide the cylindrical slot 101 into two equal parts. The inner wall of the sleeve 30 shrinks the notch 131 to reduce the size of the slot 101, so that the side wall of the slot 101 clamps the extension portion 21.
[0069] In some embodiments, see Figure 8, the handle 10 is further provided with a guide groove 132 connected to the slot 101 at the slot 101. The extension direction of the guide groove 132 is parallel to the axial direction a of the tool 20. The extension portion 21 is provided with a protrusion 211. The protrusion 211 is slidably connected to the guide groove 132 along the axial direction a of the tool 20, so that the extension portion 21 is inserted into the slot 101, the tool 20 can be positioned, and the connection between the tool 20 and the handle 10 is convenient. When the sleeve 30 is sleeved on the handle 10, the handle 10 contracts through the guide groove 132 to clamp the extension portion 21. The inner wall of the sleeve 30 shrinks the guide groove 132 to reduce the size of the slot 101, so that the side wall of the slot 101 clamps the extension portion 21.
[0070] In some embodiments, there are two guide grooves 132, which are arranged opposite to each other and divide the cylindrical slot 101 into two equal parts. The guide groove 132 can be arranged alone on the handle 10, or it can be arranged together with the notch 131 on the handle 10. When the guide groove 132 and the notch 131 are arranged on the handle 10 at the same time, the guide groove 132 and the notch 131 divide the slot 101 into four equal parts. The number of the protrusions 211 is the same as that of the guide grooves 132. The two protrusions 211 connected to the two guide grooves 132 can prevent the tool 20 from rotating relative to the handle 10, and enable the user to drive the tool 20 to rotate through the handle 10.
[0071] In some embodiments, see Figure 5 The handle 10 includes a grip portion 11. The grip portion 11 is cylindrical. The outer periphery of the grip portion 11 is provided with anti-slip grooves for the user to hold and use.
[0072] See also Figures 5 to 8 , the handle 10 further includes a threaded connection portion 12 and a clamping portion 13. The grip portion 11, the threaded connection portion 12 and the clamping portion 13 are sequentially arranged along the axial direction a of the tool 20. The threaded connection portion 12 is used for threaded connection with the sleeve 30. The guide groove 132 penetrates the clamping portion 13 and the threaded connection portion 12 along the axial direction a of the tool 20. In addition, the guide groove 132 may also penetrate only the clamping portion 13. When the sleeve 30 is sleeved on the handle 10, the clamping portion 13 enters the sleeve 30, the sleeve 30 is partially threadedly connected to the threaded connection portion 12, and the sleeve 30 presses against the clamping portion 13 near the inner wall of the clamping portion 13, so that the guide groove 132 contracts to clamp the extension portion 21. The sleeve 30 presses against the clamping portion 13 near the inner wall of the clamping portion 13, and the notch 131 and the guide groove 132 can also contract together to clamp the extension portion 21.
[0073] In some embodiments, in order to ensure the strength of the cutter head 22 , the cutter 20 is made of tool steel.
[0074] In addition, those skilled in the art should recognize that the above embodiments are only used to illustrate the present application and are not intended to limit the present application. As long as they are within the spirit of the present application, appropriate changes and modifications to the above embodiments are within the scope of the present application.
Claims
1. A disassembly tool for removing screws, characterized in that: include: handle; A tool connected to the handle, the tool comprising a tool head, the tool head having two first inclined surfaces arranged opposite to each other and two second inclined surfaces arranged opposite to each other, the distance between the two first inclined surfaces gradually decreasing toward the end of the tool head, two second inclined surfaces connected between the two first inclined surfaces, the distance between the two second inclined surfaces gradually decreasing toward the end of the tool head, the two second inclined surfaces and the two first inclined surfaces forming an end surface at the end of the tool head, and each second inclined surface having a rounded corner between the end surface.
2. The disassembly tool according to claim 1, characterized in that: The included angle between the two second inclined surfaces is α, 30°≤α≤40°.
3. The disassembly tool according to claim 1, characterized in that: The maximum distance between two of the second bevels is L1, the minimum distance between two of the second bevels is L2, the length of the second bevel in the axial direction of the tool is L3, the radius of the fillet is R1, and L1:L2:L3:R1=4:7:5:
2.
4. The disassembly tool according to claim 1, characterized in that: The included angle between the two first inclined surfaces is β, 15°≤β≤25°.
5. The disassembly tool according to claim 4, characterized in that: The thickness of the end surface in the spacing direction between the two first inclined surfaces is less than 0.1 mm.
6. The disassembly tool according to claim 1, characterized in that: The length of the first bevel in the axial direction of the tool is greater than the length of the second bevel in the axial direction of the tool.
7. The disassembly tool according to any one of claims 1 to 6, characterized in that: The disassembly tool also includes a sleeve, and the tool also includes an extension portion, the extension portion is connected to the tool head, the handle has a slot for accommodating the extension portion, the sleeve is sleeved on the handle and can reduce the size of the slot to clamp the extension portion.
8. The disassembly tool according to claim 7, characterized in that: The handle is provided with a notch connected to the slot at the slot, and the extending direction of the notch is parallel to the axial direction of the tool. When the sleeve is sleeved on the handle, the handle contracts through the notch to clamp the extension portion.
9. The disassembly tool according to claim 7, characterized in that: The handle is also provided with a guide groove connected to the slot at the slot, and the extension direction of the guide groove is parallel to the axial direction of the tool. The extension part is provided with a protrusion, and the protrusion is slidably connected to the guide groove along the axial direction of the tool to enable the extension part to be inserted into the slot. When the socket is sleeved on the handle, the handle contracts through the guide groove to clamp the extension part.
10. The disassembly tool according to claim 9, characterized in that: The handle includes a threaded connection portion and a clamping portion, the threaded connection portion is used for threaded connection to the sleeve, the guide groove passes through the clamping portion and the threaded connection portion along the axial direction of the tool, and when the sleeve is sleeved on the handle, the inner wall of the sleeve presses against the clamping portion to shrink the guide groove to clamp the extension portion.