Anti-idling expansion screw
By designing a double-fixed mechanism in the expansion screw and using anti-slip particles, the problem of the expansion screw being easy to loosen and rotate when used is solved, achieving a more stable fixing effect.
Patent Information
- Application Number
- CN202421763450.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-24
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-07-24
AI Technical Summary
The existing expansion screws are prone to loosening due to external forces when used, resulting in rotation and cannot be effectively fixed to the substrate.
An anti-aircraft rotation expansion screw is designed to enhance the connection force between the screw and the contact surface by adding a double fixing mechanism, including the positional relationship between the air groove and the limiting plate and the use of anti-slip particles.
Through the double-fixed mechanism and anti-slip particles design, the locking force and stability of the expansion screw is significantly improved, preventing loosening and rotating, and achieving a firmer fixation effect.
Smart Images
Figure CN222880053U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of expansion screws, in particular to an anti-idling expansion screw. Background Art
[0002] Anti-idling expansion screws, as the name implies, are expansion screws that can effectively prevent rotation during the fixing process. It is based on the design of traditional expansion screws, by adding a specific anti-rotation mechanism or improving the structure to ensure that it can be stably fixed on the substrate during installation and use, and no unnecessary rotation occurs due to external forces.
[0003] When the device is in use, the following defects still exist: the existing expansion screws are usually not fixed when in use, and the friction between the expansion screws and the contact surface may be insufficient, resulting in easy loosening when subjected to external force. Utility Model Content
[0004] The utility model aims to solve the shortcomings in the prior art and proposes an anti-idling expansion screw.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an anti-idle rotation expansion screw, including a fixing frame and a core nail, the top of the fixing frame is rotatably connected with an adjustment plate, the adjustment plate is provided with empty slot one and empty slot two, the middle part of the fixing frame is threadedly connected with screw rod one, the top of the screw rod one is fixedly connected with a limiting plate, and the core nail is slidably connected with empty slot two.
[0006] As a further description of the above technical solution:
[0007] The bottom of the core nail is fixedly connected with a screw rod 2.
[0008] As a further description of the above technical solution:
[0009] The outer wall of the screw rod 2 is threadedly connected with a nut gasket.
[0010] As a further description of the above technical solution:
[0011] The bottom of the screw rod 2 is threadedly connected with an expansion jacket.
[0012] As a further description of the above technical solution:
[0013] The outer wall of the expansion jacket is fixedly connected with anti-skid particles.
[0014] The utility model has the following beneficial effects:
[0015] In the utility model, a double fixing mechanism is added to the expansion screw, and the position relationship between the empty slot one and the limit plate, and the position relationship between the empty slot two and the core nail are controlled, so that an additional locking force is provided for the expansion screw, so that the connection between the screw and the contact surface is more secure, and the screw is prevented from idling.
[0016] By adding anti-skid particles to the expansion screws, it helps prevent the expansion screws from loosening after installation, thereby providing a more stable fixing effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a first-view diagram of an anti-idling expansion screw proposed by the utility model;
[0018] Figure 2 This is a second viewing angle diagram of an anti-idling expansion screw proposed by the utility model;
[0019] Figure 3 This is a third viewing angle diagram of the anti-idling expansion screw proposed by the utility model.
[0020] Legend:
[0021] 1. Fixed frame; 2. Adjustment plate; 3. Empty slot 1; 4. Limit plate; 5. Screw 1; 6. Core nail; 7. Screw 2; 8. Nut gasket; 9. Expansion sleeve; 10. Anti-skid particles; 11. Empty slot 2. DETAILED DESCRIPTION
[0022] 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.
[0023] Reference Figure 1-Figure 3 The utility model provides an embodiment: an anti-idle rotation expansion screw, including a fixing frame 1 and a core nail 6, the top of the fixing frame 1 is rotatably connected with an adjusting plate 2, the adjusting plate 2 is provided with an empty slot 1 3 and an empty slot 2 11, the middle part of the fixing frame 1 is threadedly connected with a screw rod 1 5, the top of the screw rod 1 5 is fixedly connected with a limiting plate 4, and the core nail 6 is slidably connected with the empty slot 2 11.
[0024] Among them, the bottom of the core nail 6 is fixedly connected with a screw rod 2 7, and the outer wall of the screw rod 2 7 is threadedly connected with a nut gasket 8, and its tightness is adjusted by rotating the nut gasket 8. The bottom of the screw rod 2 7 is threadedly connected with an expansion sleeve 9. When tightened, the screw rod 2 7 will move outward and push the expansion sleeve 9 to expand it in the fixed substrate. The outer wall of the expansion sleeve 9 is fixedly connected with anti-skid particles 10. These particles can increase the friction between the expansion sleeve 9 and the substrate to prevent the expansion sleeve 9 from sliding or shifting after installation.
[0025] Working principle: When the utility model is in use, the whole device is moved to the position where it needs to be fixed, and the core nail 6 is rotated. The core nail 6 drives the screw rod 2 7 to rotate inside the expansion sleeve 9. As the screw rod 2 7 rotates, the expansion sleeve 9 gradually expands outward, and the nut gasket 8 is rotated to make the nut gasket 8 abut against the contact surface to achieve the fixation of the contact object. If double fixation is achieved, the staff will rotate the adjustment plate 2 to move the empty slot 1 3 to the bottom of the limit plate 4, and move the empty slot 2 11 to the outside of the core nail 6, rotate the limit plate 4 to make the limit plate 4 horizontal, and make the empty slot 1 3 and the limit plate 4 engage with each other, thereby achieving the limitation of the core nail 6. If only the expansion screw itself is needed to fix the contact object, rotate the limit plate 4 to make the limit plate 4 rotate to a state where it can be disengaged from the empty slot 1 3, and rotate the adjustment plate 2 to disengage the core nail 6 from the empty slot 2 11.
[0026] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can 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 should be included in the protection scope of the present invention.
Claims
1. An anti-idling expansion screw, comprising a fixing frame (1) and a core nail (6), characterized in that: The top of the fixing frame (1) is rotatably connected to an adjustment plate (2), the adjustment plate (2) is provided with an empty slot 1 (3) and an empty slot 2 (11), the middle of the fixing frame (1) is threadedly connected to a screw rod 1 (5), the top of the screw rod 1 (5) is fixedly connected to a limit plate (4), and the core nail (6) is slidably connected to the empty slot 2 (11).
2. The anti-idling expansion screw according to claim 1, characterized in that: The bottom of the core nail (6) is fixedly connected with a second screw rod (7).
3. The anti-idling expansion screw according to claim 2, characterized in that: The outer wall of the second screw rod (7) is threadedly connected with a nut washer (8).
4. The anti-idling expansion screw according to claim 3, characterized in that: The bottom of the second screw (7) is threadedly connected with an expansion sleeve (9).
5. The anti-idling expansion screw according to claim 4, characterized in that: The outer wall of the expansion jacket (9) is fixedly connected with anti-skid particles (10).