Fastening type thread anti-falling nut
By using triangular threads and limiting structures in the fastening thread anti-detachment nut, the problem of fasteners loose under impact and vibration is solved, and the connection strength and applicability is achieved, and it is suitable for a variety of mechanical equipment.
Patent Information
- Application Number
- CN202421249134.2
- 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
Existing fasteners are prone to loosening or falling off under impact, vibration or heavy load, resulting in mechanical equipment failure. The existing self-tightening anti-detachment nuts are not effective when the vibration conditions are limited, and their applicability is limited.
Design a fastening thread anti-detachment nut, adopting triangular threads and mutually symmetrical sharp angles, positioning grooves, positioning strips and limit block structures, and improve friction and torque transmission capabilities through triangular threads, and use sharp angles and positioning strips. The limiting action prevents loosening and increases strength and toughness through carbon steel and stainless steel materials.
Effectively prevent the nut from loosening and rotating, improve connection strength and service life, reduce operating costs, and achieve higher tightness and applicability.
Smart Images
Figure CN222296690U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of anti-stripping nuts, in particular to a fastening type thread anti-stripping nut. Background Art
[0002] Nuts are the most commonly used fasteners in the mechanical field. Most of the nuts generally used are ordinary standard fasteners. Under the action of impact, vibration or heavy load, the friction between the thread pairs gradually decreases or disappears instantly, resulting in loose threaded connections, or even fasteners falling off or losing, which can cause mechanical equipment to malfunction. At present, in many occasions, people use anti-loosening nuts instead of ordinary standard nuts to prevent the nuts from loosening during use.
[0003] According to the search, Chinese patent literature, announcement number: CN217814456U, discloses a self-tightening anti-slip nut group, including a fastening nut and a locking nut, the fastening nut outer thread is a reverse thread, and is screwed with the second inner thread of the locking nut which is also a reverse thread, and is tightened by rotating leftward, the fastening nut outer thread only exists in the lower half of the outer surface of the fastening nut, and does not penetrate the entire outer surface of the fastening nut, the fastening nut outer thread is shorter than the second inner thread of the locking nut, after screwing together, the lower edge of the fastening nut and the lower edge of the locking nut form a cavity, and the vibration is transmitted to the fastening nut through the locking nut, so that the first inner thread of the fastening nut and the bolt thread are screwed tighter.
[0004] However, when the utility model is in use, the vibration of the equipment is used to achieve the self-tightening of the nut, and the triggering conditions are limited. A small vibration will not only fail to cause the nut to self-tighten, but will loosen the nut, so the applicability is limited. Utility Model Content
[0005] The purpose of the utility model is to provide a fastening type threaded anti-slip nut, which can solve the problems raised in the above-mentioned background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tightening type threaded anti-slip nut, comprising a nut body, a fixing screw inserted into the interior of the nut body, the fixing screw and the nut body being threadedly connected, the outer edge of the upper surface of the nut body being processed with mutually symmetrical sharp corners, a hole groove being provided on the top surface of the fixing screw, and mutually symmetrical positioning grooves being provided on the outer edge of the upper surface of the fixing screw, and mutually symmetrical positioning strips being welded to the upper surface of the nut body.
[0007] Preferably, the threads on the inner surface of the main body of the nut body and the outer surface of the main body of the fixing screw are triangular threads.
[0008] Preferably, four sharp corners are symmetrically arranged, and the sharp corners are triangles as a whole.
[0009] Preferably, the nut body is made entirely of carbon steel material, and the nut body is embedded in the surface of the workpiece by knocking and pressing.
[0010] Preferably, the positioning strip matches the positioning groove, and the positioning strip can be embedded in the positioning groove after being bent.
[0011] Preferably, the positioning bar is made of stainless steel.
[0012] Preferably, the hole groove is set to penetrate, a limiting block is set on the surface of the hole groove, the upper surface of the limiting block is fixedly connected to the fixing screw, the outer surface of the nut body is provided with a limiting groove, and the limiting block matches the limiting groove.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] 1. The utility model can reduce the contact area between the nut body and the workpiece by setting four mutually symmetrical triangular sharp corners, so that the operator can quickly embed the nut body into the workpiece. After embedding, the sharp corners can play a limiting role to prevent the nut body from rotating or loosening, and the positioning strip can be bent by knocking the positioning strip, so that it is embedded in the positioning groove, thereby tightening the fixing screw, preventing the fixing screw from rotating, and ensuring the connection strength.
[0015] 2. The utility model inserts a steel nail into the hole and knocks it downward. When the outer surface of the steel nail contacts the limit block, the limit block is squeezed outward, so that the outside of the limit block enters the limit groove, thereby limiting the fixing screw and achieving the purpose of improving the fastening performance. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0017] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from above;
[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the fixing screw of the utility model;
[0019] Figure 4 It is a schematic diagram of the cross-sectional structure of the utility model.
[0020] In the figure: 1. nut body; 2. fixing screw; 21. hole slot; 3. sharp corner; 4. positioning slot; 5. positioning strip; 6. limit block; 7. limit slot. DETAILED DESCRIPTION
[0021] 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 of 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.
[0022] Example 1
[0023] See also Figure 1 The figure shows a tightening type threaded anti-slip nut, including a nut body 1, a fixing screw 2 is inserted into the interior of the nut body 1, the fixing screw 2 is connected to the nut body 1 by a thread, the outer edge of the upper surface of the nut body 1 is processed with mutually symmetrical sharp corners 3, the top surface of the fixing screw 2 is provided with a hole groove 21, the outer edge of the upper surface of the fixing screw 2 is provided with mutually symmetrical positioning grooves 4, and the upper surface of the nut body 1 is welded with mutually symmetrical positioning strips 5.
[0024] See also Figure 1 In the figure, the threads on the inner surface of the main part of the nut body 1 and the outer surface of the main part of the fixing screw 2 are triangular threads.
[0025] In this embodiment: by adopting a triangular thread, its sharp thread teeth can increase friction, increase the torque transmission capacity of the fastener, have a self-locking property, and can prevent the fastener from loosening. The production process of the triangular thread is relatively simple, and it can be mass-produced. The depth of the triangular thread is shallow, which can reduce the possibility of blockage during use, thereby improving the tightness between the nut body 1 and the fixing screw 2.
[0026] Working principle: When in use, by adopting the triangular thread, its sharp thread teeth can improve the friction force, increase the torque transmission capacity of the fastener, have self-locking performance, and can prevent the fastener from loosening. The production process of the triangular thread is relatively simple, and it can be mass-produced. The depth of the triangular thread is shallow, which can reduce the possibility of blockage during use, thereby improving the tightness between the nut body 1 and the fixing screw 2, and by setting four mutually symmetrical triangular sharp corners 3, the contact area between the nut body 1 and the workpiece can be reduced, so that the operator can quickly embed the nut body 1 into the workpiece. After embedding, the sharp corners 3 can play a limiting role to prevent the nut body 1 from rotating or loosening, and by using carbon steel material to make the nut body 1, the nut body 1 can have a higher The strength of the nut body 1 is improved to avoid the situation of thread slippage during use, and the service life of the nut body 1 is improved. By knocking the positioning strip 5, the positioning strip 5 can be bent and embedded in the positioning groove 4, so as to tighten the fixing screw 2 and prevent the fixing screw 2 from rotating, thereby ensuring the connection strength. By using stainless steel to make the positioning strip 5, the positioning strip 5 can have higher strength and toughness, so that the positioning strip 5 can be bent repeatedly without breaking, so that the nut body 1 can be recycled, reducing the operating cost. By inserting a steel nail into the hole groove 21 and knocking downward, when the outer surface of the steel nail contacts the limit block 6, the limit block 6 will be squeezed outward, so that the outside of the limit block 6 enters the limit groove 7, thereby limiting the fixing screw 2, thereby achieving the purpose of improving the fastening.
[0027] Example 2
[0028] See also Figure 1 This embodiment further illustrates Example 1. In the figure, four sharp corners 3 are symmetrically arranged, and the sharp corners 3 are triangles as a whole.
[0029] In this embodiment: by setting four mutually symmetrical triangular sharp corners 3, the contact area between the nut body 1 and the workpiece can be reduced, thereby facilitating the operator to quickly embed the nut body 1 into the workpiece. After embedding, the sharp corners 3 can play a limiting role to prevent the nut body 1 from rotating or loosening.
[0030] See also Figure 2 In the figure, the nut body 1 is made of carbon steel material as a whole, and the nut body 1 is embedded in the surface of the workpiece by knocking and pressing.
[0031] In the present embodiment, the nut body 1 is made of carbon steel material, so that the nut body 1 has a higher strength, which can avoid thread slippage during use and increase the service life of the nut body 1.
[0032] See also Figure 1In the figure, the positioning strip 5 matches the positioning groove 4, and the positioning strip 5 can be embedded in the positioning groove 4 after being bent.
[0033] In this embodiment, the positioning strip 5 can be bent by knocking, so as to be embedded in the positioning groove 4, thereby fastening the fixing screw 2 and preventing the fixing screw 2 from rotating, thereby ensuring the connection strength.
[0034] See also Figure 1 , the positioning bar 5 in the figure is made of stainless steel.
[0035] In this embodiment, by using stainless steel to make the positioning strip 5, the positioning strip 5 can have higher strength and toughness, so that the positioning strip 5 can be bent repeatedly without breaking, so that the nut body 1 can be recycled, reducing the operating cost.
[0036] See also Figure 4 In the figure, the hole groove 21 is set to penetrate, and a limiting block 6 is set on the surface of the hole groove 21. The upper surface of the limiting block 6 is fixedly connected to the fixing screw 2. A limiting groove 7 is provided on the outer surface of the nut body 1, and the limiting block 6 matches the limiting groove 7.
[0037] In this embodiment: by using a steel nail or the like to insert into the hole groove 21 and knocking downward, when the outer surface of the steel nail contacts the limit block 6, the limit block 6 will be squeezed outward, so that the outside of the limit block 6 enters the limit groove 7, thereby limiting the fixing screw 2, thereby achieving the purpose of improving the tightness.
[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include"-"comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process-method-article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process-method-article or device.
[0039] Although embodiments of the present invention have been shown and described, it will be understood 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 the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A tightening type threaded anti-slip nut, comprising a nut body (1), characterized in that: A fixing screw (2) is inserted into the interior of the nut body (1), and the fixing screw (2) is connected to the nut body (1) by a thread. The outer edge of the upper surface of the nut body (1) is processed with mutually symmetrical sharp corners (3), the top surface of the fixing screw (2) is provided with a hole groove (21), the outer edge of the upper surface of the fixing screw (2) is provided with mutually symmetrical positioning grooves (4), and the upper surface of the nut body (1) is welded with mutually symmetrical positioning strips (5).
2. A fastening type threaded anti-stripping nut according to claim 1, characterized in that: The threads on the inner surface of the main body of the nut body (1) and the outer surface of the main body of the fixing screw (2) are triangular threads.
3. A fastening type threaded anti-stripping nut according to claim 1, characterized in that: Four of the sharp corners (3) are symmetrically arranged, and the sharp corners (3) are in the shape of a triangle as a whole.
4. A fastening type threaded anti-stripping nut according to claim 1, characterized in that: The nut body (1) is made entirely of carbon steel material, and the nut body (1) is embedded in the surface of a workpiece by knocking and pressing.
5. A fastening type threaded anti-stripping nut according to claim 1, characterized in that: The positioning strip (5) matches the positioning groove (4), and the positioning strip (5) can be embedded in the interior of the positioning groove (4) after being bent.
6. A fastening type threaded anti-stripping nut according to claim 1, characterized in that: The positioning strip (5) is made of stainless steel.
7. A fastening type threaded anti-stripping nut according to claim 1, characterized in that: The hole groove (21) is arranged to penetrate, a limiting block (6) is arranged on the surface of the hole groove (21), the upper surface of the limiting block (6) is fixedly connected to the fixing screw (2), and a limiting groove (7) is provided on the outer surface of the nut body (1), and the limiting block (6) matches the limiting groove (7).