Screw structure and frame
By designing an interference structure between the anti-removal part and the stop ring in the screw structure, the problem that the existing screw structure requires a large number of washers during assembly is solved, which achieves an effective anti-removal effect and improves assembly efficiency.
Patent Information
- Application Number
- CN202421329303.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-11
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-06-11
AI Technical Summary
Existing screw structures require the use of a large number of washers during assembly to achieve anti-detachment effect, but this reduces assembly efficiency and increases costs.
A screw structure is designed, in which an anti-detachment member is provided on the screw, and a barrier ring and a guide structure are provided at the connection between the nut and the frame. The anti-detachment member enters the perforation through the guide structure, interferes with the barrier ring, and achieves an anti-detachment effect.
Through this structure, the screw cannot be disengaged from the perforation without external force, thereby effectively achieving anti-detachment effect, while reducing dependence on the washer, improving assembly efficiency and reducing costs.
Smart Images
Figure CN222577112U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of screws, in particular to a screw structure and a frame. Background Art
[0002] Screws are a type of assembly fastener. When used, the structure to be assembled is compressed by the nut by screwing the screw. In order to prevent the screw from falling off at will, self-tapping screws can be used for assembly operations. Self-tapping screws have an anti-falling effect. However, during assembly, the self-tapping screws are completely locked with the assembly structure, and there is no reserved space between the assembly structure and the nut. Therefore, they cannot pass the vibration test.
[0003] In response to the above problem, there is a screw structure with a step provided at the connecting end of the screw and the nut. The step of the screw abuts against the nut to fix the relative position of the two after the connection. At this time, a gap of a certain distance is reserved between the nut at the other end of the screw and the assembly structure. The gap is a movable space, which is conducive to the product passing the vibration test.
[0004] However, in order to prevent the screw structure from falling off, a washer sleeve needs to be used on the screw. The washer sleeve is arranged on the screw rod of the screw and generates interference, thereby preventing the screw from falling off. However, in the assembly structure, a large number of screws are required, and the large number of washers will not only reduce the assembly efficiency, but also increase the cost. Utility Model Content
[0005] In order to solve at least the above technical problems existing in the prior art, the utility model provides a screw structure and a frame.
[0006] On the one hand, the utility model provides a screw structure, including a screw rod, a frame body and a nut; the screw rod includes a rod body, a nut and an anti-slip component, the nut is arranged at one end of the rod body, the anti-slip component is arranged on the surface of the rod body, and the rod body at a side of the anti-slip component away from the nut is provided with a first thread; the frame body includes a through hole, the first end of the through hole is provided with a retaining ring extending into the hole, the aperture of the retaining ring is smaller than the outer diameter of the anti-slip component, and the second end of the through hole is overlapped with the nut; the anti-slip component includes a guide structure, the anti-slip component passes through the retaining ring via the guide structure and enters the through hole, and the first thread is threadedly connected with the nut.
[0007] In some embodiments, the anti-dropping member includes a protruding structure arranged along the circumference of the rod body, and the guiding structure is arranged on the surface of the protruding structure; the protruding structure is cylindrical, and the outer diameter of the protruding structure is greater than the diameter of the rod body.
[0008] In some embodiments, the guide structure includes a second thread, the second thread is provided on the surface of the protruding structure, and the protruding structure is rotated and screwed into the through hole via the second thread.
[0009] In some embodiments, a first table surface is formed at the connection between the protruding structure and the first thread; the aperture of the second end of the through hole is larger than the aperture of the nut, and a second table surface is formed at the connection between the second end of the through hole and the nut; after the first thread is threadedly connected to the nut, the first table surface and the second table surface abut against each other, and the first end of the through hole is connected to the assembly structure, and the nut and the assembly structure have a spacing of a set length.
[0010] In some embodiments, an inner wall of the retaining ring is provided with an internal thread, and the protruding structure is screwed into the through hole via the second thread and the internal thread.
[0011] In some embodiments, the retaining ring is made of elastic material. When the protruding structure is rotated into the through hole via the second thread, the protruding structure and the second thread squeeze the retaining ring to deform. After the protruding structure enters the through hole, the retaining ring is reset.
[0012] In some embodiments, the distance between the nut and the assembly structure ranges from 0.05 mm to 0.15 mm.
[0013] Another aspect of the utility model further provides a frame, comprising the above-mentioned screw structure.
[0014] The utility model provides a screw structure and frame. During the operation of connecting the screw to the nut, the end of the rod body enters the through hole through the retaining ring. Then, as the rod body enters, the anti-slipping piece interferes with the retaining ring. Under the action of the guide structure, the anti-slipping piece enters the through hole with the rod body. Finally, the first thread of the screw is screwed into the nut to complete the screw connection between the screw and the nut. The technical solution of the utility model can be completed by the interference between the guide structure and the retaining ring when the screw needs to be screwed in or out. When the anti-slipping piece is located in the through hole, the screw will not fall out of the through hole without the action of external force, thereby effectively achieving the purpose of anti-slipping. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] By reading the detailed description below with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, wherein:
[0016] In the drawings, the same or corresponding reference numerals represent the same or corresponding parts.
[0017] Figure 1 A cross-sectional view of a screw structure provided in an embodiment of the utility model;
[0018] Figure 2A schematic diagram of the structure of a screw rod in a screw structure provided by an embodiment of the utility model;
[0019] Figure 3 A reference diagram of the use status of the screw structure provided in the embodiment of the utility model.
[0020] In the figure:
[0021] 1: Screw; 2: Frame; 3: Nut; 4: Assembly structure;
[0022] 11: rod body; 12: nut; 13: anti-dropping member; 14: first thread; 15: second thread; 16: first table top;
[0023] 21: perforation; 22: retaining ring; 23: second table surface. DETAILED DESCRIPTION
[0024] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction 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 of them. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.
[0025] The embodiment of the utility model provides a screw structure, including a screw rod, a frame body and a nut; an anti-slipping piece is arranged on the screw rod, and a through hole is arranged on the frame body. When the screw rod enters the through hole, the guide structure on the anti-slipping piece interferes with the retaining ring on the through hole. After the screw rod is penetrated, the anti-slipping piece cannot be passed through the retaining ring when no external force is applied, thereby achieving the purpose of anti-slipping.
[0026] The various structures of the screw structure provided by the embodiment of the utility model, and the positional relationship and connection relationship between the various structures are described in detail below in conjunction with the accompanying drawings.
[0027] like Figures 1 to 3 As shown, in the embodiment of the utility model, the screw 1 includes a rod body 11, a nut 12 and an anti-slip component 13. The nut 12 is arranged at one end of the rod body 11, the anti-slip component 13 is arranged on the surface of the rod body 11, and a first thread 14 is provided on the rod body 11 on the side of the anti-slip component 13 away from the nut 12; the screw 1 is connected to the nut 3 through the first thread 14.
[0028] The outer diameter of the anti-slip member 13 is greater than the outer diameter of the rod body 11. For example, the anti-slip member 13 includes a protruding structure arranged along the circumference of the rod body 11. The protruding structure is cylindrical. For example, the protruding structure is integrally formed with the rod body 11, and the guide structure is arranged on the surface of the protruding structure.
[0029] The frame 2 includes a through hole 21, and the nut 3 is arranged at the second end of the through hole 21, and a first table 16 is formed at the connection between the protruding structure and the first thread 14; the aperture of the second end of the through hole 21 is larger than the aperture of the nut 3, and a second table 23 is formed at the connection between the second end of the through hole 21 and the nut 3; the screw rod 1 penetrates into the through hole 21 and is connected to the nut 3 through the first thread 14.
[0030] After the first thread 14 is screwed with the nut 3, the first table 16 and the second table 23 are in contact, and there is a set length of spacing between the nut 12 and the assembly structure 4 connected to the first end of the through hole 21. That is, after the screw 1 is tightened on the nut 3 through the first thread 14, the nut 12 can be kept from being completely attached to the assembly structure 4. When the product is subjected to a vibration test, the spacing provides a movable space, thereby facilitating the product to pass the vibration test.
[0031] For example, the first table 16 and the second table 23 are both continuous annular structures, and the two are completely fitted and abutted against each other, and have good stability. This structure can also ensure the stability of the spacing distance.
[0032] Continue to refer Figures 1 to 3 As shown, in the embodiment of the utility model, the screw 1 cooperates with the frame 2 and also has an anti-slip effect. In the case of non-manual operation, the screw 1 is not easy to separate from the frame 2. The specific structure is: the first end of the through hole 21 is provided with a retaining ring 22 extending into the hole, and the aperture of the retaining ring 22 is smaller than the outer diameter of the anti-slip component 13; the anti-slip component 13 includes a guide structure, and the anti-slip component 13 passes through the retaining ring 22 via the guide structure and enters the through hole 21.
[0033] When the aperture of the retaining ring 22 is smaller than the outer diameter of the anti-slip member 13, the screw rod 1 is located outside the through hole 21, and the screw rod 1 (including the anti-slip member 13) needs to be inserted into the through hole 21 with the help of external force and a guide structure. For example, the guide structure includes a second thread 15, and the second thread 15 is provided on the surface of the protruding structure. During operation, by rotating the screw rod 1, the protruding structure is rotated and screwed into the through hole 21 via the second thread 15.
[0034] When the anti-slipping member 13 is located in the through hole 21, since the outer diameter of the anti-slipping member 13 is larger than the aperture of the retaining ring 22, the anti-slipping member 13 cannot pass through the retaining ring 22 without external force, thereby achieving the purpose of preventing slipping. If it is necessary to separate the screw rod 1 from the frame 2, the screw rod 1 can be rotated in the opposite direction, and the anti-slipping member 13 can pass through the retaining ring 22 under the action of the second thread 15.
[0035] For example, an internal thread is provided on the inner wall of the retaining ring 22, and the protruding structure is screwed into the through hole 21 through the second thread 15 and the internal thread. In the process of rotating the screw 1, the internal thread on the retaining ring 22 cooperates with the second thread 15 to realize the insertion operation of the anti-slip member 13 through the retaining ring 22, wherein, by providing the internal thread structure, the anti-slip member 13 is screwed in or out of the retaining ring 22 with less effort while ensuring the anti-slip function.
[0036] For example, the retaining ring 22 is made of an elastic material, and when the protruding structure is rotated and screwed into the through hole 21 via the second thread 15, the protruding structure and the second thread 15 squeeze the retaining ring 22 to deform, and after the protruding structure enters the through hole 21, the retaining ring 22 is reset. For example, the elastic material is rubber, and the rubber has a certain resilience. When the second thread 15 rotates, the retaining ring 22 is squeezed and deformed, and after the anti-slip member 13 passes, the retaining ring 22 is reset, thereby ensuring the blocking of the anti-slip member 13.
[0037] The utility model also provides a frame, including the above-mentioned screw structure. When the screw structure on the frame is used, the assembly hole of the structure to be assembled 4 is superimposed on the first end of the frame body 2, and the end of the screw rod 1 away from the nut 12 is passed through the assembly hole and the retaining ring 22 in sequence, and then the anti-slip member 13 interferes with the retaining ring 22, and the screw rod 1 is rotated. Under the action of the guide structure, the anti-slip member 13 enters the through hole 21 with the rod body 11, and the screw rod 1 is continuously rotated, so that the first thread 14 is connected with the nut 3, until the first table 16 and the second table 23 abut, so that the screw rod 1 cannot continue to rotate.
[0038] After the screw rod 1 and the nut 3 are assembled, there is a spacing between the nut 12 and the assembly structure 4 on the nut 3, for example, the spacing ranges from 0.05 mm to 0.15 mm, which can provide a movable space during the vibration test.
[0039] The utility model provides a screw structure and frame. During the operation of connecting the screw rod 1 to the nut 3, the end of the rod body 11 enters the through hole 21 through the retaining ring 22. Then, as the rod body 11 enters, the anti-slipping piece 13 interferes with the retaining ring 22. Under the action of the guide structure, the anti-slipping piece 13 enters the through hole 21 with the rod body 11. Finally, the first thread 14 of the screw rod 1 is screwed into the nut 3 to complete the screw connection between the screw rod 1 and the nut 3. The technical solution of the utility model can be completed by the interference between the guide structure and the retaining ring 22 when the screw needs to be screwed in or out. When the anti-slipping piece 13 is located in the through hole 21, the screw rod 1 will not fall out of the through hole 21 without the action of external force, thereby effectively achieving the purpose of anti-slipping.
[0040] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.
[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0042] The above are only specific implementations of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.
Claims
1. A screw structure, characterized in that: It comprises a screw rod (1), a frame (2) and a nut (3); The screw rod (1) comprises a rod body (11), a nut (12) and an anti-slipping piece (13); the nut (12) is arranged at one end of the rod body (11); the anti-slipping piece (13) is arranged on the surface of the rod body (11); and a first thread (14) is arranged on the rod body (11) at a side of the anti-slipping piece (13) away from the nut (12); The frame (2) comprises a through hole (21), a first end of the through hole (21) is provided with a retaining ring (22) extending into the hole, the aperture of the retaining ring (22) is smaller than the outer diameter of the anti-slip component (13), and the second end of the through hole (21) is superimposed on the nut (3); The anti-slip component (13) comprises a guide structure, and the anti-slip component (13) passes through the retaining ring (22) via the guide structure and enters the through hole (21), and the first thread (14) is threadedly connected to the nut (3).
2. The screw structure according to claim 1, characterized in that: The anti-dropping member (13) comprises a protruding structure arranged along the circumference of the rod body (11), and the guiding structure is arranged on the surface of the protruding structure; The protruding structure is cylindrical, and the outer diameter of the protruding structure is greater than the diameter of the rod body (11).
3. The screw structure according to claim 2, characterized in that: The guide structure comprises a second thread (15), wherein the second thread (15) is arranged on the surface of the protruding structure, and the protruding structure is rotated and screwed into the through hole (21) via the second thread (15).
4. The screw structure according to claim 3, characterized in that: A first table surface (16) is formed at the connection between the protruding structure and the first thread (14); the aperture of the second end of the through hole (21) is larger than the aperture of the nut (3), and a second table surface (23) is formed at the connection between the second end of the through hole (21) and the nut (3); After the first thread (14) is threadedly connected to the nut (3), the first table surface (16) and the second table surface (23) are in abutment with each other, and the first end of the through hole (21) is connected to the assembly structure (4), and the nut (12) and the assembly structure (4) have a spacing of a set length.
5. The screw structure according to claim 3, characterized in that: An internal thread is provided on the inner wall of the retaining ring (22), and the protruding structure is screwed into the through hole (21) via the second thread (15) and the internal thread.
6. The screw structure according to claim 3, characterized in that: The retaining ring (22) is made of elastic material. When the protruding structure is rotated and screwed into the through hole (21) via the second thread (15), the protruding structure and the second thread (15) squeeze the retaining ring (22) to deform. After the protruding structure enters the through hole (21), the retaining ring (22) is reset.
7. The screw structure according to claim 4, characterized in that: The distance between the nut (12) and the assembly structure (4) ranges from 0.05 mm to 0.15 mm.
8. A framework, characterized in that The invention comprises the screw structure as claimed in any one of claims 1 to 7.