Conical change screw structure
By introducing the design of the card slot, movable block, limit block and magnet protective plate into the conical screw structure, the problems of torsion groove wear and misoperation are solved, and the convenient replacement of the movable block and the service life are extended.
Patent Information
- Application Number
- CN202420146017.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-22
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-01-22
AI Technical Summary
During the disassembly and assembly process, existing conical screws require a hex wrench to insert the torsion groove and rotate, resulting in the wear of the inner wall of the torsion groove and the inability to remove the screw.
A conical screw structure is designed, including a screw and a nut, and the nut is equipped with a slot, a movable block, a limiting block and a drive block. The disassembly of the movable block and the limiting block are achieved through the engagement and separation of the limiting block and the limiting slot. Install and use magnet protective plates to prevent accidentally pressing the drive block and extend service life.
It realizes convenient replacement of movable blocks, extends the service life of the conical screw, and prevents misoperation through magnet protective plates, improving the safety of use.
Smart Images
Figure CN222163159U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of screws, in particular to a cone-shaped screw structure. Background Art
[0002] A screw is a tool used for fastening, consisting of a screw and a nut. The thread diameter of a tapered screw gradually decreases, and its shape is like a cone. For example, a screw with the publication number "CN217814409U" is provided with a breaking end at the end of the screw. The bottom of the breaking end is provided with four sets of drilling blades, so that the screw can be quickly inserted into the surface of the material. By providing four sets of breaking blades on the outside of the breaking end, the breaking blades can expand the hole opened by the drilling blades for the insertion of the stud. By providing a slotting blade on the outside of the stud, the slotting blade can slot and drill the side wall of the hole expanded by the breaking blade when the stud drives the slotting blade to rotate. In this way, the screw can be drilled in. The breaking blade is set as a spiral structure with decreasing screw pitch, which can effectively prevent the screw from loosening, thereby improving the practicality of the screw. However, the screw still has the following disadvantages in actual use:
[0003] When the above mechanism is in use, the screw is removed by inserting a hexagonal wrench into the torsion groove and rotating it. However, the hexagonal wrench needs to be inserted into the torsion groove and rotated each time it is disassembled and assembled, so that the torsion groove is in contact with the hexagonal wrench for a long time, causing its inner wall to be worn, and then the screw cannot be rotated and removed.
[0004] Therefore, we proposed a tapered screw structure that can solve the above problems well. Utility Model Content
[0005] The utility model aims to provide a tapered screw structure to solve the problem raised by the above-mentioned background technology that each time a hexagonal wrench is disassembled and assembled in the current market, it is necessary to insert the hexagonal wrench into the torsion groove and rotate it, so that the torsion groove is in contact with the hexagonal wrench for a long time, causing the inner wall of the torsion groove to be worn, and then the screw cannot be rotated and removed.
[0006] To achieve the above object, the utility model provides the following technical solution: a tapered screw structure, comprising a screw rod, a nut is welded on the left side of the screw rod, and the right end of the screw rod is arranged in a conical shape, and the diameter of the outer thread of the screw rod is gradually reduced;
[0007] The invention also comprises: a clamping groove is provided on the left side of the nut, a movable block is clamped and connected inside the clamping groove, and a torsion groove is provided on the left side of the movable block;
[0008] A replacement structure is arranged inside the nut, and the movable block can be disassembled and installed by engaging and separating the limiting block and the limiting groove, so that the movable block can be replaced easily.
[0009] Preferably, the replacement structure includes accommodating grooves that are all opened inside the nut, and the internal sliding connection of the accommodating groove is a limiting block, a first spring is installed between the outer side of the limiting block and the inner wall of the accommodating groove, and a groove is opened on the side of the limiting block, limiting grooves are opened at both upper and lower ends of the movable block, and a driving block is connected through the left side of the inside of the nut.
[0010] Preferably, the limiting block is arranged in a "T" shape, and the end of the limiting block is snap-fitted to the inner wall of the limiting groove.
[0011] Preferably, the two driving blocks are symmetrically arranged inside the nut about the center point of the slot, and the right end of the driving block and the slot are both inclined, and the inclined surface of the right end of the driving block fits with the inner wall of the slot.
[0012] Preferably, a protective plate is rotatably connected to the left side of the nut, and a first magnet is installed on the side of one end of the protective plate, and a second magnet is fixed at an equal angle to the left side of the nut.
[0013] Preferably, the protective plate can be rotated 90°, and the area of the protective plate is larger than the area of the second spring.
[0014] Preferably, the first magnet is located at a position corresponding to the second magnet, and the magnets on opposite sides of the first magnet and the second magnet are opposite.
[0015] Compared with the prior art, the utility model has the following beneficial effects: the cone-changing screw structure, by pressing the driving block, separates the limit block from the limit groove, releases the fixation of the movable block, and then facilitates the removal and replacement of the movable block, and replaces the worn torsion groove at the same time, thereby extending the service life of the cone-changing screw, and at the same time utilizes the rotating protective plate to enable the protective plate to shield the driving block, thereby preventing the driving block from being pressed by mistake during use. The specific contents are as follows:
[0016] (1) When the inner side of the torsion groove on the movable block is worn and needs to be replaced, the driving block is pressed to make it snap into the corresponding groove, thereby moving the limit block and separating it from the limit groove, releasing the limit on the movable block, thereby facilitating the removal of the movable block and replacing the worn torsion groove, thereby extending the service life of the cone screw;
[0017] Furthermore, the new movable block is inserted into the slot, and then the driving block is released, so that it is reset under the elastic force of the second spring and separated from the groove. At the same time, the limiting block is reset under the elastic force of the first spring and is inserted into the corresponding limiting slot, so that the movable block can be fixed;
[0018] (2) The protective plate is rotated to separate the first magnet from the second magnet at the initial position, and then rotated 90° to move the first magnet on the protective plate to the corresponding position of the second magnet. The rotated protective plate is fixed by using the principle of magnets with opposite poles attracting each other, and the protective plate can be used to shield the driving block to prevent the driving block from being pressed by mistake.
[0019] Furthermore, when the driving block needs to be pressed, the protective plate only needs to be rotated to reset it, and at the same time, the first magnet on the protective plate moves to the second magnet in the initial position to fix the protective plate and facilitate the use of the pressing driving block. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;
[0021] Figure 2 This is a side view structural diagram of the nut of the utility model;
[0022] Figure 3 This is a schematic diagram of the separation structure of the movable block and the card slot of the utility model;
[0023] Figure 4 For this utility model Figure 1 The enlarged structural diagram at A in the middle;
[0024] Figure 5 For this utility model Figure 1 Enlarged structural diagram at B in the middle.
[0025] In the figure: 1. screw; 2. nut; 3. slot; 4. movable block; 5. accommodating groove; 6. limit block; 7. first spring; 8. limit slot; 9. driving block; 10. second spring; 11. protective plate; 12. first magnet; 13. second magnet. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0027] See also Figure 1-Figure 5 The utility model provides a technical solution: a tapered screw structure
[0028] Embodiment 1: In order to solve the problem that in the prior art, each time the hexagonal wrench is disassembled and assembled, it is necessary to insert the hexagonal wrench into the torsion groove and rotate it, so that the torsion groove is in contact with the hexagonal wrench for a long time, causing the inner wall of the torsion groove to be worn, and then the screw cannot be rotated and the screw cannot be removed, the following solution is disclosed, and the specific reference is Figure 1 and Figure 3-Figure 5 As shown, it includes a screw rod 1, a nut 2 is welded on the left side of the screw rod 1, and the right end of the screw rod 1 is set in a conical shape, and the diameter of the outer thread of the screw rod 1 is set to gradually decrease;
[0029] It also includes: a replacement structure is arranged inside the nut 2, and the engagement and separation of the limit block 6 and the limit groove 8 are utilized to realize the disassembly and installation of the movable block 4, so as to facilitate the replacement of the movable block 4, the replacement structure includes a receiving groove 5 which is opened inside the nut 2, and the internal sliding connection of the limit block 6 is provided in the receiving groove 5, a first spring 7 is installed between the outer side of the limit block 6 and the inner wall of the receiving groove 5, and a groove is provided on the side of the limit block 6, the upper and lower ends of the movable block 4 are provided with the limit groove 8, the left side of the nut 2 is penetrated and connected with a driving block 9, the limit block 6 is arranged in a "T" shape, and the end of the limit block 6 is engaged with the inner wall of the limit groove 8, the two driving blocks 9 are symmetrically arranged inside the nut 2 about the center point of the card slot 3, and the right end of the driving block 9 and the groove are inclined, and the inclined surface of the right end of the driving block 9 fits with the inner wall of the groove;
[0030] When the inner side of the torsion groove on the movable block 4 is worn and needs to be replaced, the user presses the driving block 9 to make it snap into the corresponding groove, thereby moving the limit block 6 and separating it from the limit groove 8, releasing the limit on the movable block 4, and then separating the movable block 4 from the slot 3, and then snapping the new movable block 4 into the slot 3, and then releasing the driving block 9, so that it is reset under the elastic force of the second spring 10 and separated from the groove, and at the same time, the limit block 6 is reset under the elastic force of the first spring 7 and snapped into the corresponding limit groove 8, so that the movable block 4 can be fixed, making it easy to remove the movable block 4 and replace the worn torsion groove, thereby extending the service life of the cone screw.
[0031] Embodiment 2: Different from Embodiment 1, this embodiment uses a hexagonal wrench inserted into the torsion groove and rotated to facilitate the installation of the tapered screw into the threaded hole. For details, refer to Figure 1 and Figure 2 As shown, a clamping slot 3 is provided on the left side of the nut 2, and a movable block 4 is clamped and connected inside the clamping slot 3, and a torsion slot is provided on the left side of the movable block 4;
[0032] The user aligns the screw rod 1 with the threaded hole, inserts the hexagonal wrench into the torsion groove and rotates it, thereby installing the tapered screw into the threaded hole, thereby completing the fastening of the workpiece.
[0033] Embodiment 3: Different from Embodiment 1 and Embodiment 2, this embodiment can shield the driving block 9 to prevent the driving block 9 from being pressed by mistake during use. For details, refer to Figure 1-Figure 3 As shown, the left side of the nut 2 is rotatably connected with a protective plate 11, and a first magnet 12 is installed on the side of one end of the protective plate 11, and a second magnet 13 is fixed at an equal angle on the left side of the nut 2, the first magnet 12 is located at a position corresponding to the second magnet 13, and the magnets on the opposite sides of the first magnet 12 and the second magnet 13 are opposite, the protective plate 11 can be rotated 90°, and the area of the protective plate 11 is larger than the area of the second spring 10;
[0034] The user rotates the protective plate 11 to separate the first magnet 12 from the second magnet 13 at the initial position, and then rotates it 90° to move the first magnet 12 on the protective plate 11 to the corresponding position of the second magnet 13. The rotated protective plate 11 is fixed by utilizing the principle of opposite magnets attracting each other. The protective plate 11 can be used to shield the drive block 9 to prevent the drive block 9 from being pressed by mistake. When the drive block 9 needs to be pressed, the user only needs to rotate the protective plate 11 to reset it. At the same time, the first magnet 12 on the protective plate 11 moves to the second magnet 13 at the initial position, thereby fixing the protective plate 11 and making it easier for the user to press the drive block 9.
[0035] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.
[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.
Claims
1. A tapered screw structure, comprising a screw (1), a nut (2) being welded on the left side of the screw (1), the right end of the screw (1) being arranged in a conical shape, and the diameter of the outer thread of the screw (1) being arranged to decrease gradually; It is characterized in that Also includes: A clamping groove (3) is provided on the left side of the nut (2), and a movable block (4) is clamped and connected inside the clamping groove (3), and a torsion groove is provided on the left side of the movable block (4); A replacement structure is provided inside the nut (2), and the movable block (4) can be disassembled and installed by engaging and separating the limit block (6) and the limit groove (8), thereby facilitating replacement of the movable block (4) and thereby extending the service life of the cone-changing screw.
2. The tapered screw structure according to claim 1, Features: The replacement structure comprises a receiving groove (5) which is provided inside the nut (2), and a limit block (6) is slidably connected inside the receiving groove (5), a first spring (7) is installed between the outer side of the limit block (6) and the inner wall of the receiving groove (5), and a groove is provided on the side of the limit block (6), the upper and lower ends of the movable block (4) are provided with limit grooves (8), and the left side of the inside of the nut (2) is penetrated and connected with a driving block (9).
3. The tapered screw structure according to claim 2, Features: The limiting block (6) is arranged in a "T" shape, and the end of the limiting block (6) is snap-fitted to the inner wall of the limiting groove (8).
4. The tapered screw structure according to claim 2, Features: The two driving blocks (9) are symmetrically arranged inside the nut (2) about the center point of the slot (3), and the right end of the driving block (9) and the slot are both inclined, and the inclined surface of the right end of the driving block (9) fits the inner wall of the slot.
5. The tapered screw structure according to claim 1, Features: The left side of the nut (2) is rotatably connected to a protective plate (11), and a first magnet (12) is installed on the side of one end of the protective plate (11). A second magnet (13) is fixed at an equal angle on the left side of the nut (2).
6. The tapered screw structure according to claim 5, Features: The protection plate (11) can rotate 90 degrees, and the area of the protection plate (11) is larger than the area of the second spring (10).
7. The tapered screw structure according to claim 5, Features: The first magnet (12) is located at a position corresponding to the second magnet (13), and the magnets on opposite sides of the first magnet (12) and the second magnet (13) are opposite.