Anti-fracture hexagonal screw

Abstract

The utility model relates to the technical field of anti-loose screws, in particular to an anti-fracture hexagonal screw, which comprises a bolt, an anti-fracture hexagonal screw rod and a locking part, the bolt is sequentially provided with a screwing part, a thread part and a clamping part, and the thread part is provided with an external thread; the nut is provided with an internal thread matched with the thread part; the sleeve is provided with a cylinder part and an acting part, the cylinder part is hollow, the cylinder part is arranged on the outer side of the threaded part, the acting part is provided with a through hole matched with the clamping part in shape, the acting part is arranged on the outer side of the clamping part, and the clamping part is used for fixing the relative angle of the sleeve and the bolt; the clamping part is provided with a first fixing hole, the acting part is provided with a second fixing hole, the clamping part is arranged in the first fixing hole and the second fixing hole, and the clamping part is used for fixing the sleeve and the bolt; the pressurizing assembly is arranged on the sleeve, connected with the nut and used for applying fastening force to the nut. The utility model discloses an anti-fracture hexagonal screw, and aims to solve the problem that a screw in the prior art is easy to loosen and fracture along with the increase of service time.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-loosening screws, and more specifically, to an anti-fracture hexagon screw. Background Art

[0002] A screw is a common fastener and is widely used in the connection of machinery, electrical appliances, and buildings. Traditional screws will cause reverse rotation and loosening under the action of various forces, resulting in loosening at the connection of machinery or buildings, which is the main cause of vibration and noise of mechanical components. Loosening is often also the basic condition for screw fracture.

[0003] Traditional screws are respectively coated with anti-loosening plastic and anti-leakage material on the mating surface between the bottom end of the screw head and the component to be fastened. During long-term use, with the quality change of the anti-loosening plastic or anti-leakage material, it is easy to cause loosening and fracture of the screw, resulting in danger. Therefore, a new type of anti-fracture hexagon screw is needed. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide an anti-fracture hexagon screw, aiming to solve the problems that screws are prone to loosening and fracture with the increase of service time in the prior art.

[0005] To solve the above technical problems, an anti-fracture hexagon screw is provided, including: a bolt, successively provided with a screwing part, a threaded part, and a clamping part, the threaded part being provided with an external thread;

[0006] a nut, provided with an internal thread adapted to the threaded part;

[0007] a sleeve, provided with a cylindrical part and an acting part, the cylindrical part being hollow, the cylindrical part being arranged outside the threaded part, the acting part being provided with a through hole adapted to the shape of the clamping part, the acting part being arranged outside the clamping part, the clamping part being used for fixing the relative angle between the sleeve and the bolt;

[0008] a clamping member, the clamping part being provided with a first fixing hole, the acting part being provided with a second fixing hole, the clamping member being arranged in the first fixing hole and the second fixing hole, the clamping member being used for fixing the sleeve and the bolt;

[0009] a pressurizing assembly, arranged in the sleeve and connected to the nut, for applying a tightening force to the nut.

[0010] In any of the above technical solutions, further, it further includes: the pressurizing assembly includes:

[0011] a plurality of elastic components, each of the elastic components being uniformly arranged on the periphery of the threaded part, and the two ends being respectively connected to the nut and the sleeve.

[0012] In any of the above technical solutions, further, it further includes: The elastic component includes:

[0013] A first mounting member disposed on the sleeve;

[0014] A second mounting member disposed on the nut;

[0015] A spring fixedly connected to the first mounting member and the second mounting member respectively.

[0016] In any of the above technical solutions, further, each of the elastic components is inclined.

[0017] In any of the above technical solutions, further, the first mounting member and the second mounting member each include a horizontal section and an inclined section. The horizontal section is disposed on the sleeve or the nut, and the spring is disposed on the inclined section.

[0018] In any of the above technical solutions, further, the pressurizing component further includes:

[0019] A fixing piece fixedly disposed on the nut. The fixing piece and the sleeve are provided with a plurality of clamping holes, and the first mounting member and the second mounting member of each of the elastic components are respectively clamped in each of the clamping holes.

[0020] In any of the above technical solutions, further, a plurality of the second fixing holes are arranged along the axial direction of the bolt.

[0021] The beneficial effects are as follows:

[0022] 1. Through the interaction of the sleeve, the clamping member and the clamping portion of the anti-fracture hexagon screw of the present invention, the sleeve can be fixed at one end of the bolt. At the same time, through the interaction of the pressurizing component on the sleeve and the nut, the nut is subjected to a pre-tightening force, so that the anti-fracture hexagon screw will not loosen following the vibration of the connection during use, thereby avoiding the situation of screw fracture;

[0023] 2. Through the action between the sleeve and the clamping portion of the bolt of the anti-fracture hexagon screw of the present invention, the magnitude of the tangential force required when the hexagon screw fractures can be increased, and the anti-fracture ability of the hexagon screw can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 is a three-dimensional structural schematic diagram of an anti-fracture hexagonal screw of the present utility model;

[0026] Figure 2 is a cross-sectional structural schematic diagram of an anti-fracture hexagonal screw of the present utility model;

[0027] Figure 3 is a partial structural schematic diagram of an anti-fracture hexagonal screw of the present utility model.

[0028] The description of the reference numerals in the drawings is as follows:

[0029] 1. Bolt; 101. Screwing part; 102. Thread part; 103. Clamping part;

[0030] 2. Nut;

[0031] 3. Sleeve; 301. Cylindrical part; 302. Acting part;

[0032] 4. Clamping member;

[0033] 5. Pressurizing assembly; 501. Elastic assembly; 502. First mounting member; 503. Second mounting member; 504. Spring; 505. Horizontal section; 506. Inclined section; 507. Fixed piece. Detailed implementation manners

[0034] Next, exemplary embodiments according to the present application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. It should be understood that the present application is not limited by the exemplary embodiments described herein. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0035] It should be noted that, as shown in the present application and the claims, unless the context clearly indicates an exception, words such as "a", "an", "one" and / or "the" are not specifically singular, but may also include plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of the steps and elements that have been clearly identified, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements.

[0036] If there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between the components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0037] In the present utility model, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0038] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, such descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" can explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel scenarios. Taking "A and / or B" as an example, it includes Scenario A, or Scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0039] The present utility model provides an anti-fracture hexagon screw, which mainly relies on the reaction force of a pressurizing component on the sleeve fixed on the bolt to make the nut fastened on the bolt and offset the tendency of the nut to loosen during use.

[0040] The following will detail an anti-fracture hexagon screw of the present application through the following embodiments.

[0041] In this embodiment, as Figures 1 to 3 shown, the anti-fracture hexagon screw includes: a bolt 1, which is successively provided with a screwing part 101, a threaded part 102, and a clamping part 103, and the threaded part 102 is provided with an external thread;

[0042] a nut 2, which is provided with an internal thread adapted to the threaded part 102;

[0043] a sleeve 3, which is provided with a cylindrical part 301 and an acting part 302. The cylindrical part 301 is hollow, the cylindrical part 301 is arranged outside the threaded part 102, the acting part 302 is provided with a through hole adapted to the shape of the clamping part 103, the acting part 302 is arranged outside the clamping part 103, and the clamping part 103 is used to fix the relative angle between the sleeve 3 and the bolt 1;

[0044] The clamping part 4 is provided with a first fixing hole at the clamping portion 103, and the acting portion 302 is provided with a second fixing hole. The clamping part 4 is arranged in the first fixing hole and the second fixing hole, and the clamping part 4 is used to fix the sleeve 3 and the bolt 1;

[0045] The pressurizing assembly 5 is arranged on the sleeve 3 and connected to the nut 2 for applying a tightening force to the nut 2.

[0046] In this technical solution, for the convenience of description, the bolt 1 is placed vertically. The screwing portion 101, the threaded portion 102 and the clamping portion 103 are arranged in sequence from top to bottom. The screwing portion 101 is set as a regular hexagon, the threaded portion 102 is provided with an external thread, and the clamping portion 103 is set as non-cylindrical. Specifically, the clamping portion 103 is set as a regular hexagon, and the nut 2 can pass through the clamping portion 103 and be screwed onto the threaded portion 102. The sleeve 3 is integrally arranged in a cylindrical shape. The inside of the cylindrical portion 301 is circular, and the inside of the acting portion 302 is a regular hexagon adapted to the clamping portion 103. The sleeve 3 is slidably arranged up and down on the clamping portion 103 and the threaded portion 102. The first clamping hole and the second clamping hole horizontally penetrate through the clamping portion 103 and the acting portion 302 respectively. The first clamping hole and the second clamping hole are set as rectangular holes of the same size, and the clamping part 4 is set as a rectangular sheet. When the clamping part 4 is simultaneously clamped in the first clamping hole and the second clamping hole, the sleeve 3 is fixed on the bolt 1. The pressurizing assembly 5 is fixed on the top surface of the sleeve 3 and the bottom surface of the nut 2, and can increase the tightening force between the nut 2 and the bolt 1.

[0047] In this embodiment, it further includes: The pressurizing assembly 5 includes:

[0048] A plurality of elastic components 501, and each elastic component 501 is uniformly arranged on the circumferential side of the threaded portion 102 and is respectively connected to the nut 2 and the sleeve 3 at both ends.

[0049] In this technical solution, the elastic components 501 are uniformly arranged in a circle and are specifically set to eight, which improves the symmetry of the structure and the fixing effect.

[0050] In this embodiment, it further includes: The elastic component 501 includes:

[0051] The first mounting member 502, which is arranged on the sleeve 3;

[0052] The second mounting member 503, which is arranged on the nut 2;

[0053] The spring 504, which is fixedly connected to the first mounting member 502 and the second mounting member 503 respectively.

[0054] Both the first mounting member 502 and the second mounting member 503 include a horizontal section 505 and an inclined section 506. The horizontal section 505 is arranged on the sleeve 3 or the nut 2, and the spring 504 is arranged on the inclined section 506.

[0055] In this technical solution, both the first mounting member 502 and the second mounting member 503 are arranged in a zigzag shape. The horizontal sections 505 of the first mounting member 502 and the second mounting member 503 are both arranged parallel to the horizontal plane, and the inclined sections 506 of the first mounting member 502 and the second mounting member 503 are both inclined relative to the horizontal plane. The top surface of the sleeve 3 is provided with a clamping hole adapted to the horizontal section 505 of the first mounting member 502. The first mounting member 502 is detachably arranged on the sleeve 3, and the spring 504 is clamped between the first mounting member 502 and the second mounting member 503 in a compressed state.

[0056] In some technical solutions, a guide post is provided on the first mounting member 502.

[0057] In this embodiment, each elastic component 501 is arranged obliquely.

[0058] In this technical solution, the spring 504 of the elastic component 501 is arranged obliquely under the action of the first mounting member 502 and the second mounting member 503 in the direction in which the nut 2 is screwed onto the bolt 1, so that the spring 504 can generate a component force to urge the nut 2 to be screwed onto the bolt 1, improving or maintaining the fastening degree between the nut 2 and the object to be fixed.

[0059] In this embodiment, the pressurizing component 5 further includes:

[0060] A fixing piece 507, fixedly arranged on the nut 2. The fixing piece 507 and the sleeve 3 are provided with a plurality of clamping holes, and the first mounting member 502 and the second mounting member 503 of each elastic component 501 are respectively clamped in each clamping hole.

[0061] In this technical solution, the fixing piece 507 is provided with a clamping hole adapted to the horizontal section 505 of the second mounting member 503. The second clamping member 4 is detachably clamped on the fixing piece 507, and the fixing piece 507 is welded to the bottom surface of the nut 2. Fixing the second mounting member 503 through the fixing piece 507 facilitates maintaining the integrity of the nut 2 and the processing of each part.

[0062] In this embodiment, a plurality of second fixing holes are arranged along the axial direction of the bolt 1.

[0063] In this technical solution, a plurality of second fixing holes are arranged in the up and down direction, specifically three.

[0064] The embodiments of the present disclosure have been described above. The above description is exemplary and not exhaustive, and is also not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, the practical application, or the improvement of the technology in the market, or to enable other ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. An anti-fracture hexagonal screw, characterized in that, Including: A bolt (1) successively provided with a screwing part (101), a threaded part (102) and a clamping part (103), wherein the threaded part (102) is provided with an external thread; A nut (2) provided with an internal thread adapted to the threaded part (102); A sleeve (3) provided with a cylindrical part (301) and an acting part (302), the cylindrical part (301) is hollowly arranged, the cylindrical part (301) is arranged outside the threaded part (102), the acting part (302) is provided with a through hole adapted to the shape of the clamping part (103), the acting part (302) is arranged outside the clamping part (103), and the clamping part (103) is used for fixing the relative angle between the sleeve (3) and the bolt (1); A clamping piece (4), the clamping part (103) is provided with a first fixing hole, the acting part (302) is provided with a second fixing hole, the clamping piece (4) is arranged in the first fixing hole and the second fixing hole, and the clamping piece (4) is used for fixing the sleeve (3) and the bolt (1); A pressurizing assembly (5) arranged on the sleeve (3) and connected to the nut (2) for applying a tightening force to the nut (2).

2. The anti-fracture hexagon screw according to claim 1, characterized in that, Further including: The pressurizing assembly (5) includes: A plurality of elastic assemblies (501), each of the elastic assemblies (501) is evenly arranged on the circumference of the threaded part (102), and both ends are respectively connected to the nut (2) and the sleeve (3).

3. The anti-breaking hexagon screw according to claim 2, characterized in that, Further including: The elastic assembly (501) includes: A first mounting member (502) arranged on the sleeve (3); A second mounting member (503) arranged on the nut (2); A spring (504) fixedly connected to the first mounting member (502) and the second mounting member (503) respectively.

4. The anti-fracture hexagon screw according to claim 2, characterized in that, Each of the elastic assemblies (501) is inclined.

5. The anti-fracture hexagon screw according to claim 3, characterized in that, Both the first mounting member (502) and the second mounting member (503) include a horizontal section (505) and an inclined section (506), the horizontal section (505) is arranged on the sleeve (3) or the nut (2), and the spring (504) is arranged on the inclined section (506).

6. The anti-fracture hexagon screw according to claim 3, wherein The pressurizing assembly (5) further includes: A fixing piece (507) fixedly arranged on the nut (2), the fixing piece (507) and the sleeve (3) are provided with a plurality of clamping holes, and the first mounting member (502) and the second mounting member (503) of each of the elastic assemblies (501) are respectively clamped in each of the clamping holes.

7. The anti-break hexagonal screw according to claim 1, characterized in that, The second fixing holes are arranged in multiple along the axial direction of the bolt (1).

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