Combined screw
Through the design of the combined screw, the clamping assembly with inserted rod, elastic steel sheet and magnet attraction is used to solve the problem of loosening and falling off of traditional screws in high vibration environment, and achieve stable fastening effect and convenient disassembly and assembly process.
Patent Information
- Application Number
- CN202422804424.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-11-18
AI Technical Summary
Traditional screws are prone to loosening or falling off in high-vibration working environments, resulting in poor fastening effects.
A combined screw was designed, which included a detachably connected screw head and screw, with a clamping assembly inside. The combined structure of the inserted rod and the elastic steel sheet was used to prevent loosening through magnetic attraction and spring compression deformation.
It effectively prevents the screw from loosening in a high-vibration environment, ensures stable fastening effect, and facilitates disassembly and assembly.
Smart Images
Figure CN223399069U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fasteners, in particular to a combined screw. Background Art
[0002] A screw is a cylindrical or conical rod with a spiral groove cut into its outer surface. It comes in a variety of types and uses. It utilizes the physics and mathematics of the inclined circular rotation of an object and friction to gradually tighten objects and parts. It is an indispensable industrial necessity in daily life.
[0003] Screws have a wide range of applications and are used in various working environments. Traditional screws have poor vibration resistance. When the screw is in a high-vibration working environment, the long-term vibration of the screw can easily cause the screw to loosen or even fall off, resulting in poor tightening effect. Utility Model Content
[0004] The purpose of the present invention is to provide a combined screw to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a combined screw rod, comprising a screw rod and a screw head located above the screw rod, characterized in that: the screw head is detachably connected to the screw rod, a clamping assembly is provided inside the screw rod, the clamping assembly comprises an insertion rod A, an insertion rod B located on the left and right sides of the insertion rod A, and elastic steel sheets fixedly arranged on the upper and lower sides of the insertion rod B, a socket A is provided on the top wall of the screw rod, the insertion rod A is inserted into the socket A and is detachably connected to the screw rod, an elastic groove located on the left and right sides of the insertion rod A is provided on the inner side wall of the socket A, a socket B passing through the elastic groove is provided on the outer side wall of the screw rod, the insertion rod B is inserted into the socket B and is slidably connected to the screw, the upper and lower ends of the elastic steel sheet are respectively fixedly connected to the upper and lower side walls of the elastic groove, one end of the insertion rod B is in contact with the insertion rod A, and the other end of the insertion rod B extends out of the socket B.
[0006] Preferably, a screw hole penetrating the insertion hole A is provided on the top wall of the screw rod, and a stud is fixedly provided above the insertion rod A. The stud is screwed into the screw hole and threadedly connected to the screw rod.
[0007] Preferably, a slot A is provided on the bottom wall of the screw head, and an insert block A is fixedly provided inside the slot A and located on the front and rear sides of the insert rod A, a magnet A is fixedly provided on the bottom wall of the insert block A, and a slot B matching the insert block A is provided on the top wall of the screw rod, and a magnet B is fixedly provided on the bottom wall of the slot B. After the screw rod and the insert block A are respectively inserted into the slot A and the slot B, the magnet A is magnetically connected to the magnet B.
[0008] Preferably, the slot A is fixed with an insert block B located on the left and right sides of the insert rod A, the bottom wall of the insert block B is fixed with a magnet C, the top wall of the screw is provided with a slot C matching the insert block B, the bottom wall of the slot C is fixed with a magnet D, and after the insert block B is inserted into the slot C, the magnet C is magnetically connected to the magnet D.
[0009] Preferably, the clamping assembly further comprises a fixing ring fixedly arranged on the outside of the screw, a spring and a sliding ring sleeved on the screw, and the upper and lower ends of the spring are fixedly connected to the fixing ring and the sliding ring respectively.
[0010] Preferably, the screw head and the top wall of the stud are both provided with hexagonal grooves.
[0011] Preferably, the bottom of the insertion rod A is a pointed end, one end of the insertion rod B is a round end, and the other end of the insertion rod B is a pointed end.
[0012] The beneficial effects of the present invention are as follows: when the present invention is used, the top end of the screw is inserted into the slot A, the insert block A is inserted into the slot B, the insert block B is inserted into the slot C, the magnet A is magnetically connected to the magnet B, and the magnet C is magnetically connected to the magnet D, thereby completing the assembly of the screw head and the screw, which facilitates the disassembly and assembly of the screw head; the screw is aligned with the screw hole on the part, the screw head is rotated to tighten the screw, the screw head is removed, the insert rod A is inserted into the socket A and the stud is screwed into the screw hole, so that the insert rod A is fixedly connected to the screw, and after the insert rod A is inserted into the socket A, one end of the insert rod B is in conflict with the insert rod A, and the insert rod A will push the insert rod B so that the other end of the insert rod B extends out of the socket B, and the other end of the insert rod B is in conflict with the side wall of the screw hole on the part, which prevents the screw from loosening, and then the screw head is assembled with the screw to complete the installation of the screw; at this time, the sliding ring will be pressed tightly on the part, so that the spring The compression deformation exerts elastic force on the parts and the screw, which further prevents the screw from loosening; when the screw needs to be disassembled, the screw head is removed, the stud is unscrewed out of the screw hole and the plug A is taken out of the hole A. Since the upper and lower ends of the elastic steel sheet are fixedly connected to the upper and lower side walls of the spring groove respectively, when the plug A pushes the plug B, the elastic steel sheet will bend and deform inside the spring groove. After the plug A is taken out, the elastic steel sheet rebounds and resets, pulling the other end of the plug B back to the hole B, which quickly resets the plug B. The screw head is assembled with the screw and the screw head is rotated to remove the screw, completing the disassembly of the screw; in summary, the utility model has the beneficial effect of preventing the screw from loosening, solves the problem that the traditional screw has poor anti-vibration effect, and when the screw is in a high-vibration working environment, the screw is subjected to vibration for a long time, which easily causes the screw to loosen or even fall off, resulting in a poor fastening effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Attachment Figure 1 It is a structural diagram of the utility model;
[0014] Attachment Figure 2This is an explosion diagram of the utility model;
[0015] Attachment Figure 3 It is a top view of the utility model;
[0016] Attachment Figure 4 For attachment Figure 3 Cross-sectional view at AA in the middle;
[0017] Attachment Figure 5 For attachment Figure 3 Cross-sectional view at the middle BB.
[0018] In the figure: 1. Screw; 2. Screw head; 3. Rod A; 4. Rod B; 5. Elastic steel sheet; 6. Socket A; 7. Socket B; 8. Spring groove; 9. Screw hole; 10. Stud; 11. Slot A; 12. Insert A; 13. Slot B; 14. Magnet A; 15. Magnet B; 16. Insert B; 17. Slot C; 18. Magnet C; 19. Magnet D; 20. Spring; 21. Sliding ring; 22. Hexagonal groove; 23. Fixed ring. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.
[0020] like Figure 1-5As shown, the utility model discloses a combined screw 1, comprising a screw 1, a screw head 2 located above the screw 1, the screw head 2 being detachably connected to the screw 1, a clamping assembly being provided inside the screw 1, the clamping assembly comprising an insert rod A3, an insert rod B4 located on the left and right sides of the insert rod A3, and an elastic steel sheet 5 fixedly arranged on the upper and lower sides of the insert rod B4, a socket A6 being provided on the top wall of the screw 1, the insert rod A3 being inserted into the socket A6 and being detachably connected to the screw 1, a spring groove 8 being located on the left and right sides of the insert rod A3 being provided on the inner side wall of the socket A6, a socket B7 being provided on the outer side wall of the screw 1 that passes through the spring groove 8, the insert rod B4 being inserted into the socket B7 and being slidably connected to the screw 1, the upper and lower ends of the elastic steel sheet 5 being fixedly connected to the upper and lower side walls of the spring groove 8 respectively, one end of the insert rod B4 being in contact with the insert rod A3, and the other end of the insert rod B4 extending out of the socket B7. When the utility model is used, the top of the screw rod 1 is inserted into the slot A11, the plug block A12 is inserted into the slot B13, the plug block B16 is inserted into the slot C17, the magnet A14 is magnetically connected with the magnet B15, and the magnet C18 is magnetically connected with the magnet D19, thereby completing the assembly of the screw head 2 and the screw rod 1, which facilitates the disassembly and assembly of the screw head 2; align the screw 1 with the screw hole on the part, rotate the screw head 2 to tighten the screw 1, remove the screw head 2, insert the plug rod A3 into the hole A6 and Screw the stud 10 into the screw hole 9 to fix the rod A3 with the screw 1. After the rod A3 is inserted into the socket A6, one end of the rod B4 contacts the rod A3. The rod A3 will push the rod B4 so that the other end of the rod B4 extends outside the socket B7. The other end of the rod B4 will contact the side wall of the screw hole on the part to prevent the screw 1 from loosening. Then assemble the screw head 2 with the screw 1 to complete the installation of the screw 1. At this time, the sliding ring 21 will be pressed tightly on the part. When the screw 1 needs to be disassembled, the screw head 2 is removed, the stud 10 is unscrewed from the screw hole 9 and the column A is taken out of the hole A6. Since the upper and lower ends of the elastic steel sheet 5 are fixedly connected to the upper and lower side walls of the elastic groove 8 respectively, when the insertion rod A3 pushes the insertion rod B4, the elastic steel sheet 5 will bend and deform inside the elastic groove 8. After the insertion rod A3 is taken out, the elastic steel sheet 5 rebounds and resets, pulling the other end of the insertion rod B4 back to the hole B7, which quickly resets the insertion rod B4. The screw head 2 is assembled with the screw 1 and the screw head 2 is rotated to remove the screw 1, and the disassembly of the screw 1 is completed. In summary, the utility model has the beneficial effect of preventing the screw from loosening, and solves the problem that the traditional screw has poor anti-vibration effect. When the screw is in a high-vibration working environment, the screw is subjected to vibration for a long time, which easily causes the screw to loosen or even fall off, resulting in poor fastening effect.
[0021] Preferably, a screw hole 9 is formed on the top wall of the screw rod 1 and is connected to the insertion hole A6. A stud 10 is fixedly provided on the top of the insertion rod A3, and the stud 10 is screwed into the screw hole 9 and is threadedly connected to the screw rod 1. Since the screw hole 9 is formed on the top wall of the screw rod 1 and is connected to the insertion hole A6, the stud 10 is fixedly provided on the top of the insertion rod A3. By screwing the stud 10 into the screw hole 9 and threading it into the screw rod 1, the insertion rod A3 can be fixed inside the insertion hole A6, which facilitates the installation and removal of the insertion rod A3.
[0022] Preferably, a slot A11 is provided on the bottom wall of the screw head 2, and an insert block A12 is fixedly provided inside the slot A11, located on the front and rear sides of the insert rod A3. A magnet A14 is fixedly provided on the bottom wall of the insert block A12. A slot B13 matching the insert block A12 is provided on the top wall of the screw rod 1, and a magnet B15 is fixedly provided on the bottom wall of the slot B13. After the screw rod 1 and the insert block A12 are respectively inserted into the slot A11 and the slot B13, the magnet A14 and the magnet B15 are magnetically connected. Since the magnet A14 is fixedly provided on the bottom wall of the insert block A12 and the magnet B15 is fixedly provided on the bottom wall of the slot B13, when the screw rod 1 and the insert block A12 are respectively inserted into the slot A11 and the slot B13, the magnet A14 and the magnet B15 are magnetically connected, which facilitates the disassembly and assembly of the screw head 2 and the screw head 2 to drive the screw rod 1 to rotate.
[0023] Preferably, the slot A11 is internally fixed with insert blocks B16 located on the left and right sides of the insert rod A3. The bottom wall of the insert blocks B16 is fixedly provided with magnets C18. The top wall of the screw rod 1 is provided with a slot C17 that matches the insert block B16. The bottom wall of the slot C17 is fixedly provided with magnets D19. After the insert block B16 is inserted into the slot C17, magnets C18 and D19 are magnetically connected. Because magnets C18 are fixedly provided on the bottom wall of the insert block B16 and magnets D19 are fixedly provided on the bottom wall of the slot C17, inserting the insert block B16 into the slot C17 causes magnets C18 and D19 to be magnetically connected. This increases the contact points between the screw head 2 and the screw rod 1, making it easier for the screw head 2 to drive the screw rod 1 to rotate.
[0024] Preferably, the clamping assembly further comprises a fixing ring 23 fixedly arranged on the outside of the screw 1, a spring 20 and a sliding ring 21 sleeved on the screw 1, wherein the upper and lower ends of the spring 20 are fixedly connected to the fixing ring 23 and the sliding ring 21 respectively. Since the upper and lower ends of the spring 20 are fixedly connected to the fixing ring 23 and the sliding ring 21 respectively, when the screw 1 is tightened inside the part, the sliding ring 21 will press against the part and press the spring 20 between the fixing ring 23 and the sliding ring 21, causing the spring 20 to be compressed and deformed. The spring 20 will simultaneously apply elastic force to the part and the screw 1, causing the thread of the part to press against the thread of the screw 1, thereby further preventing the screw 1 from loosening.
[0025] Preferably, the top walls of the screw head 2 and the stud 10 are both provided with a hexagonal groove 22. Since the top walls of the screw head 2 and the stud 10 are both provided with a hexagonal groove 22, it is convenient to use a tool to rotate the screw head 2 and the stud 10.
[0026] Preferably, the bottom of the rod A3 is pointed, one end of the rod B4 is rounded, and the other end of the rod B4 is pointed. The pointed bottom of the rod A3 and the rounded end of the rod B4 facilitate the use of the rod A3 to push the rod B4; the pointed end of the rod B4 facilitates the other end of the rod B4 to abut against the side wall of the screw hole on the component.
[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A combined screw, comprising a screw (1) and a screw head (2) located above the screw (1), characterized in that: The screw head (2) is detachably connected to the screw rod (1). A clamping assembly is provided inside the screw rod (1). The clamping assembly includes an insert rod A (3), an insert rod B (4) located on the left and right sides of the insert rod A (3), and elastic steel sheets (5) fixedly provided on the upper and lower sides of the insert rod B (4). A socket A (6) is provided on the top wall of the screw rod (1). The insert rod A (3) is inserted into the socket A (6) and is detachably connected to the screw rod (1). The inner wall of the socket A (6) is provided with a spring. There are spring grooves (8) on the left and right sides of the insertion rod A (3), and a socket B (7) that penetrates the spring groove (8) is formed on the outer wall of the screw rod (1). The insertion rod B (4) is inserted into the socket B (7) and is slidably connected with the screw rod (1). The upper and lower ends of the elastic steel sheet (5) are respectively fixedly connected to the upper and lower side walls of the spring groove (8). One end of the insertion rod B (4) is in contact with the insertion rod A (3), and the other end of the insertion rod B (4) extends outside the socket B (7).
2. A combined screw according to claim 1, characterized in that: A screw hole (9) is provided on the top wall of the screw rod (1) and is connected to the insertion hole A (6). A stud (10) is fixedly provided above the insertion rod A (3). The stud (10) is screwed into the screw hole (9) and is threadedly connected to the screw rod (1).
3. The combined screw according to claim 1, characterized in that: A slot A (11) is provided on the bottom wall of the screw head (2), and an insert block A (12) is fixedly provided inside the slot A (11) and is located on the front and rear sides of the insert rod A (3), and a magnet A (14) is fixedly provided on the bottom wall of the insert block A (12). A slot B (13) matching the insert block A (12) is provided on the top wall of the screw rod (1), and a magnet B (15) is fixedly provided on the bottom wall of the slot B (13). After the screw rod (1) and the insert block A (12) are respectively inserted into the slot A (11) and the slot B (13), the magnet A (14) is magnetically connected to the magnet B (15).
4. A combined screw according to claim 3, characterized in that: The slot A (11) is fixedly provided with an insert block B (16) located on the left and right sides of the insert rod A (3), and a magnet C (18) is fixedly provided on the bottom wall of the insert block B (16). A slot C (17) matching the insert block B (16) is provided on the top wall of the screw rod (1), and a magnet D (19) is fixedly provided on the bottom wall of the slot C (17). After the insert block B (16) is inserted into the slot C (17), the magnet C (18) is magnetically connected to the magnet D (19).
5. The combined screw according to claim 1, characterized in that: The clamping assembly further comprises a fixed ring (23) fixedly arranged on the outside of the screw rod (1), a spring (20) and a sliding ring (21) sleeved on the screw rod (1), wherein the upper and lower ends of the spring (20) are fixedly connected to the fixed ring (23) and the sliding ring (21), respectively.
6. The combined screw according to claim 2, characterized in that: The screw head (2) and the top wall of the stud (10) are both provided with a hexagonal groove (22).
7. The combined screw according to claim 1, characterized in that: The bottom of the insertion rod A (3) is a pointed end, one end of the insertion rod B (4) is a round end, and the other end of the insertion rod B (4) is a pointed end.