Self-tapping screw with damping ring
By designing a rotary shock absorbing ring and anti-skew mechanism in the self-tapping screw, the problems of complex structure, high manufacturing cost and complex operation in the prior art are solved, and simple structure, low cost, anti-skew and good shock absorption effect are achieved. Self-tapping screws.
Patent Information
- Application Number
- CN202421244270.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-03
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-06-03
AI Technical Summary
The existing self-tapping screws with shock absorbing rings have complex structures and high manufacturing costs. When the positioning rod comes into contact with the screw body, it cannot effectively prevent the screw from skewing, it is complicated to operate, and the vibration absorption effect is poor when used.
A self-tapping screw including the tail, the screw body and the disc head is designed. The outer ring of the disc head is equipped with a rotating shock absorber ring and steel ball. There are 4-6 anti-skew mechanisms in the rotating shock absorber ring, including a guide rod, The support rod and support pad are rubber material, connected by pins, and the support pad grooves and guide holes are matched to ensure that the support pad is tightened with the rotating shock absorber ring after the screw is locked to avoid loosening.
It achieves simple structure, low manufacturing cost, anti-skew, good shock absorption and easy operation.
Smart Images
Figure CN222296669U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fasteners, in particular to a self-tapping screw with a shock-absorbing ring. Background Art
[0002] Each self-tapping screw is composed of three parts: the head, the rod and the end of the rod. The composition of self-tapping screws has four major elements: head shape, screwing method, thread type and end form. Generally, self-tapping screws refer to pointed, coarse-threaded, hard wood screws, and aluminum alloy and plastic. A special self-tapping screw used for threading metal holes is called a tap. Self-tapping screws are used for non-metal or softer metals. There is no need to drill a base hole or tap. Self-tapping screws have pointed heads so that they can "self-drill". Ordinary screws are flat-headed and of uniform thickness. Self-tapping screws mean that the holes drilled are holes that do not require tapping. The screws are different from ordinary ones. They have pointed heads and large pitches, which are a bit like chipless taps. They can be screwed in directly without tapping. This method is usually used for metals and plastics. It can "tap, drill, squeeze, and press" the corresponding threads on the consolidated material by its own threads, so that they can fit closely with each other. Self-tapping screws, also known as quick-thread screws, are quick-install fasteners made of steel with galvanized passivation on the surface. Self-tapping screws are mostly used for connections between thin metal plates such as steel plates and sawn plates. When connecting, first make a threaded bottom hole for the connected part, and then screw the self-tapping screw into the threaded bottom hole of the connected part.
[0003] For example, a self-tapping screw with a shock-absorbing ring with application number CN202223166790.X includes a screw base, a fixing device, and a shock-absorbing device. A sinking tip is provided on the lower side of the screw base, and a weight-reducing groove is provided on the sinking tip. The cross section of the weight-reducing groove of the sinking tip is square. A fixing device is provided on the screw base. The assembly ring of the fixing device is concentrically matched with the screw base. A shock-absorbing device is provided on the upper side of the fixing device. The rotating nut of the shock-absorbing device is fixed on the screw base. Since the utility model is provided with a fixing device, when the screw base contacts the target fixing part, the anti-slip base of the fixing device can increase the friction force, which is convenient for the user to turn the self-tapping screw. Moreover, the utility model is provided with a shock-absorbing device. When the fixed object vibrates, the shock-absorbing device of the self-tapping screw will absorb the vibration, thereby preventing the self-tapping screw from falling off, thereby improving the safety of the self-tapping screw when in use.
[0004] However, this structure has the following problems: first, the structure is complex and the manufacturing cost is high; second, the positioning rod is in contact with the screw body, and when it is at the bottom, it cannot effectively prevent the screw from tilting; third, the operation is complex and difficult to implement. Utility Model Content
[0005] The utility model aims to provide a self-tapping screw with a shock-absorbing ring to solve the problems existing in the above-mentioned background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a self-tapping screw with a shock-absorbing ring, comprising a vertebral tail 2, a screw body 6, and a pan head 10, characterized in that: the outer ring of the pan head 10 is provided with a rotating shock-absorbing ring 9, and a steel shot 11 is provided between the two; the rotating shock-absorbing ring 9 is provided with 4-6 anti-skew mechanisms, including a guide rod 5, a support rod 3 and a support pad 1, the support pad 1 is arranged above the support rod 3, and the guide rod 5 and the support rod 3 are connected by a pin 4.
[0007] Preferably, the pan head 10 and the rotary damping ring 9 are both provided with steel shot grooves 12 .
[0008] Preferably, the support pad 1 is cylindrical and made of rubber.
[0009] Preferably, a support pad groove 7 is provided below the rotary damping ring 9 , and the depth of the support pad groove 7 is 1-2 mm less than the height of the support pad 1 .
[0010] Preferably, the rotary damping ring 9 is provided with a guide hole 8 , and the height of the support rod 3 is the same as the depth of the guide hole 8 .
[0011] Compared with the prior art, the utility model has the following beneficial effects: first, the structure is simple and the manufacturing cost is low; second, it can avoid tilting from the beginning to the end; third, it has good shock absorption effect and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a structural schematic diagram of the utility model.
[0013] In the figure: 1. support pad; 2. vertebral tail; 3. support rod; 4. latch; 5. guide rod; 6. screw body; 7. support pad groove; 8. guide hole; 9. rotary shock-absorbing ring; 10. pan head; 11. steel shot; 12. steel shot groove. DETAILED DESCRIPTION
[0014] 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.
[0015] See also Figure 1 The utility model provides a technical solution: a self-tapping screw with a shock-absorbing ring, comprising a vertebral tail 2, a screw body 6, and a pan head 8. The outer ring of the pan head 8 is provided with a rotating shock-absorbing ring 9, and a steel shot 11 is provided between the two, and the pan head 8 and the rotating shock-absorbing ring 9 are both provided with a steel shot groove 12.
[0016] The rotary shock-absorbing ring 9 is provided with 4-6 anti-skew mechanisms, including a guide rod 5, a support rod 3 and a support pad 1. The support pad 1 is arranged above the support rod 3, and the guide rod 5 is connected to the support rod 3 by a pin 4. The support pad 1 is cylindrical and made of rubber. A support pad groove 7 is provided under the rotary shock-absorbing ring 9, and the depth of the support pad groove 7 is 1-2mm less than the height of the support pad 1. In this way, after the screws are tightened in place, the support pad 1 can be pressed against the rotary shock-absorbing ring 9 and the object, and the support pad 1 is compressible rubber to avoid loosening.
[0017] The rotary damping ring 9 is provided with a guide hole 8 , and the height of the support rod 3 is the same as the depth of the guide hole 8 . After the screws are tightened in place, the guide rod 5 can be pulled out, and the support rod 3 remains in the guide hole 8 in the rotary damping ring 9 .
[0018] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A self-tapping screw with a damping ring, comprising a vertebral tail (2), a screw body (6), and a pan head (10), characterized in that: The outer ring of the pan head (10) is provided with a rotating damping ring (9), and a steel shot (11) is provided between the two; the rotating damping ring (9) is provided with 4-6 anti-skew mechanisms, including a guide rod (5), a support rod (3) and a support pad (1), the support pad (1) is arranged above the support rod (3), and the guide rod (5) and the support rod (3) are connected by a pin (4).
2. A self-tapping screw with a shock-absorbing ring according to claim 1, characterized in that: The pan head (10) and the rotary damping ring (9) are both provided with steel shot grooves (12).
3. The self-tapping screw with a shock-absorbing ring according to claim 1, characterized in that: The support pad (1) is cylindrical and made of rubber.
4. The self-tapping screw with a shock-absorbing ring according to claim 1, characterized in that: A support pad groove (7) is provided below the rotary damping ring (9), and the depth of the support pad groove (7) is 1-2 mm less than the height of the support pad (1).
5. The self-tapping screw with a shock-absorbing ring according to claim 1, characterized in that: The rotary damping ring (9) is provided with a guide hole (8), and the height of the support rod (3) is the same as the depth of the guide hole (8).