Countersunk screw with arc-shaped gasket
By introducing an arc-shaped washer and a limiting gear structure into the countersunk screw, the problem of loosening of the countersunk screw is solved, a more stable fastening effect is achieved, and practicality is improved.
Patent Information
- Application Number
- CN202422156774.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-04
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-09-04
AI Technical Summary
Existing countersunk screws are prone to loosening during tightening due to the lack of washers and reaction forces, resulting in poor tightening effect and reduced practicality.
A countersunk screw with an arc-shaped washer was designed. Through the cooperation of the limiting gear and the anti-loosening groove, the elastic deformation of the limiting spring and the snap-fit structure are used to increase the friction to prevent the screw from loosening and achieve a stable connection.
The combination of the limiting gear and the anti-loosening groove increases the stability of the screw, reduces loosening, and improves the tightening effect and practicality.
Smart Images
Figure CN223594699U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to hardware device technical field especially, it relates to a countersunk screw with arc gasket. BACKGROUND
[0002] The countersunk screw is also called countersunk screw, and is also called flat machine screw, is a kind of building parts, head is a cone, and similar to common wood screw, head has tool fastening groove, has one character, cross, inner hexagonal, plum blossom, pentagonal etc., screw is used to connect the connecting piece of two objects, generally screw head will protrude on the upper portion of the surface of the object to be connected, make the surface lose flat, countersunk screw can be sunk to the surface, make the surface flat, hard object needs to drill sink hole in the countersunk corresponding position, in short, countersunk is that the head of screw can keep the surface flat after installation.
[0003] In the prior art, when the countersunk screw is tightened, the bolt may be loose due to the absence of gasket and reaction force, so that the countersunk screw cannot achieve the best tightening effect, thereby causing the countersunk screw to loosen and reducing the practicability. CONTENT OF THE UTILITY MODEL
[0004] The utility model provides a countersunk screw with arc gasket to solve the shortcoming.
[0005] In order to achieve the above object, the utility model adopts the following technical scheme:
[0006] A countersunk screw with arc gasket, including circular board, the front surface of the circular board is fixedly connected with limit gear, the inner wall of the limit gear is fixedly connected with limit plate, the middle position of the upper surface of the limit plate is fixedly connected with support rod, the surface of the left and right sides of the support rod is fixedly installed with arc support table, the left side of the arc support table is provided with limit spring, the left side of the limit spring is provided with semicircular buckle.
[0007] Preferably, the outer surface of the limit gear is provided with a connecting plate, and the middle position of the left side of the connecting plate is provided with an anti-loosening groove.
[0008] Preferably, the outer surface of the support rod is provided with a limit ring, and the outer surface of the limit ring is fixedly connected with a fixing frame.
[0009] Preferably, the rear of the circular plate is provided with an arc gasket, and the rear of the arc gasket is provided with a circular friction pad.
[0010] Preferably, the middle position of the inner wall of the arc gasket is threadedly connected with a threaded rod, and the right side of the threaded rod is fixedly connected with a rhombic head.
[0011] Preferably, the top of the upper surface of the supporting rod is fixedly connected with an auxiliary frame one, and the upper surface of the limiting plate is fixedly connected with an auxiliary frame two
[0012] Compared with the prior art, the utility model has the beneficial effects of:
[0013] When the operator uses the device to work, the arc-shaped base plate can be rotated, the arc-shaped base plate is rotated to the position of the diamond head, then the arc-shaped base plate is continuously rotated, until the limiting gear is tightly fitted with the anti-loosening groove, so that the limiting gear is fixed in the anti-loosening groove in the connecting plate, after locking, the friction between them is increased, so that the screw is reduced to fall off, the stability is increased, and the practicability of the device is improved. BRIEF DESCRIPTION OF DRAWINGS
[0014] In order to facilitate the understanding of those skilled in the art, the utility model will be further described below in combination with the drawings.
[0015] Figure 1 The structure diagram of the countersunk screw with the arc-shaped gasket is provided for the utility model.
[0016] Figure 2 The front view of the arc-shaped base plate is provided for the utility model.
[0017] Figure 3 The internal section view of the limiting gear is provided for the utility model.
[0018] Figure 4 The structure diagram of the diamond head is provided for the utility model.
[0019] Figure 5 The structure diagram of the arc-shaped base plate is provided for the utility model.
[0020] In the drawing: 1, circular plate; 2, limiting gear; 3, limiting plate; 4, supporting rod; 5, arc-shaped supporting table; 6, limiting spring; 7, semicircular buckle; 8, connecting plate; 9, anti-loosening groove; 10, limiting ring; 11, fixed frame; 12, arc-shaped base plate; 13, circular friction pad; 14, threaded rod; 15, diamond head; 16, auxiliary frame one; 17, auxiliary frame two. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.
[0022] Embodiment one
[0023] Reference Figures 1-5The utility model provides a flat head screw with arc gasket, including circular board 1, the front surface of circular board 1 is fixedly connected with limit gear 2, the inner wall of limit gear 2 is fixedly connected with limit plate 3, the upper surface of limit plate 3 is fixedly connected with support rod 4 in the middle position, the surface of support rod 4 left and right sides is fixedly installed with arc support platform 5, the left side of arc support platform 5 is provided with limit spring 6, the left side of limit spring 6 is provided with semicircular buckle 7, the outer surface of limit gear 2 is provided with connecting plate 8, the left side of connecting plate 8 middle position is provided with anti -loosening groove 9, the outer surface of support rod 4 is provided with limit ring 10, the outer surface of limit ring 10 is fixedly connected with fixed frame 11, the rear of circular board 1 is provided with arc backing plate 12, the rear of arc backing plate 12 is provided with circular friction pad 13, the inner wall of arc backing plate 12 middle position is threadedly connected with threaded rod 14, the right side of threaded rod 14 is fixedly connected with diamond head 15, the top position of support rod 4 upper surface is fixedly connected with auxiliary frame one 16, the upper surface of limit plate 3 is fixedly connected with auxiliary frame two 17.
[0024] In the prior art, when the flat head screw is tightened, the screw may be loose or even fall off without the gasket and the reaction force, so that the flat head screw cannot achieve the best tightening effect, and the practicability is reduced.
[0025] When the operator works using the device, the arc backing plate 12 can be rotated on the threaded rod 14, the arc backing plate 12 is rotated to the position of the diamond head 15, and then the arc backing plate 12 is continuously rotated, when the limit gear 2 just contacts the inner wall of the anti-loosening groove 9, the limit spring 6 is pressed by the inner wall of the anti-loosening groove 9, so that the limit spring 6 is elastically deformed, the operator can continue to rotate the arc backing plate 12, so that the arc backing plate 12 moves to the diamond head 15, when the semicircular buckle 7 reaches the specified position, the pressure received by the limit spring 6 disappears, at this time, the limit gear 2 is tightly combined with the anti-loosening groove 9, so that the limit gear 2 is fixed in the anti-loosening groove 9 inside the connecting plate 8, after locking, because the arc backing plate 12 has a reaction force, the pressure below can be increased, the screw loosening can be reduced, the friction between them can be increased, the screw falling off can be reduced, the stability is increased, and the practicability of the device is improved.
[0026] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.
Claims
1. A countersunk head screw with an arc-shaped washer, comprising a circular plate (1), characterized in that: The front surface of the circular plate (1) is fixedly connected with a limiting gear (2), the inner wall of the limiting gear (2) is fixedly connected with a limiting plate (3), the upper surface of the limiting plate (3) is fixedly connected with a supporting rod (4) at the middle position, the surfaces of the left and right sides of the supporting rod (4) are fixedly installed with arc-shaped supporting tables (5), the left side of the arc-shaped supporting table (5) is provided with a limiting spring (6), and the left side of the limiting spring (6) is provided with a semicircular buckle (7).
2. A countersunk head screw with arc-shaped washer according to claim 1, characterized in that The outer surface of the limiting gear (2) is provided with a connecting plate (8), and the left side of the connecting plate (8) is provided with an anti-loosening groove (9) at the middle position.
3. A countersunk head screw with arc-shaped washer according to claim 1, characterized in that The outer surface of the supporting rod (4) is provided with a limiting ring (10), and the outer surface of the limiting ring (10) is fixedly connected with a fixing frame (11).
4. A countersunk head screw with arc-shaped washer according to claim 1, characterized in that The rear of the circular plate (1) is provided with an arc-shaped backing plate (12), and the rear of the arc-shaped backing plate (12) is provided with a circular friction pad (13).
5. A countersunk head screw with arc-shaped washer according to claim 4, characterized in that The inner wall of the arc-shaped backing plate (12) is threadedly connected with a threaded rod (14) at the middle position, and the right side of the threaded rod (14) is fixedly connected with a rhombic head (15).
6. A countersunk head screw with arc-shaped washer according to claim 1, characterized in that The upper surface of the supporting rod (4) is fixedly connected with an auxiliary frame one (16) at the top position, and the upper surface of the limiting plate (3) is fixedly connected with an auxiliary frame two (17).