Anti-deformation fastener

Abstract

The utility model relates to the technical field of anti-deformation bolts, in particular to an anti-deformation fastener which comprises a bolt and a nut matched with the bolt. The sleeving assembly is arranged on the bolt in a sleeving mode, the two ends of the sleeving assembly abut against the bolt and the nut respectively, and the sleeving assembly is used for being arranged at a fixing hole of a fixed object; a plurality of clamping grooves are formed in the outer side face of the sleeving assembly, the supporting fins are connected to the clamping grooves in a clamped mode, and the supporting fins are arranged in the radial direction of the bolt. According to the anti-deformation fastener, the multiple supporting fins on the outer peripheral side are borne through the sleeving assembly, tangential force capable of being borne in the radial direction of the bolt is increased through the multiple supporting fins arranged on the outer peripheral side in the radial direction of the bolt, and the situation that the bolt is prone to being bent in the radial direction is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-deformation bolts, and more specifically, to an anti-deformation fastener. Background Art

[0002] When fixing large-scale equipment or important equipment, fasteners are often required to provide a sufficient tonnage of fixing force. For example, the base of a wind turbine, the connection of a play equipment, etc. Since the fixing effect provided by a single bolt fastener is limited, a larger number of bolts need to be arranged at the connection for fastening. For example: dozens or hundreds of bolts are evenly arranged in a circle at the base of a wind turbine for fastening to achieve a predetermined fixing force value.

[0003] Bolts can provide different grades of tensile strength according to the influence of models, materials, and effective diameters. However, due to the influence of the threads on the studs of the bolts, the bolts themselves have the problem of being easily bent in the radial direction, which is not conducive to giving full play to the fixing effect of the bolts to a greater extent. Summary of the Utility Model

[0004] The main purpose of the utility model is to propose an anti-deformation fastener, aiming to reduce the problem that bolts are easily bent in the radial direction.

[0005] To solve the above technical problems, an anti-deformation fastener is proposed, including: a bolt and a nut cooperating with it;

[0006] A socket assembly, sleeved on the bolt, with both ends respectively abutted against the bolt and the nut, and used for being arranged at the fixing hole of an object to be fixed;

[0007] A plurality of support ribs, a plurality of card slots are arranged on the outer side surface of the socket assembly, each of the support ribs is clamped in each of the card slots, and each of the support ribs is arranged along the radial direction of the bolt.

[0008] In any of the above technical solutions, further, it further includes:

[0009] Two fixing components, the outer diameter of the fixing component is adapted to the diameter of the fixing hole of the object to be fixed, first step surfaces are arranged at both ends of each of the support ribs, the two fixing components are respectively arranged at the two first step surfaces, and the two fixing components are sleeved on the outer sides of each of the support ribs, and the mutually remote side surfaces of the two fixing components are used for abutting against the socket assembly.

[0010] In any of the above technical solutions, further, the part between the two first step surfaces of each of the support ribs is inclined with respect to the axial direction of the bolt;

[0011] Or, the portion between the two first step surfaces of each of the support ribs is arranged in an arc shape relative to the axial direction of the bolt.

[0012] In any of the above technical solutions, further, the fixing assembly includes:

[0013] At least one rigid gasket and at least one flexible gasket, the rigid gasket and the flexible gasket overlap each other, the rigid gasket or the flexible gasket abuts against the socket assembly, the inner diameter of the rigid gasket is equal to the outer diameter of the first step surface, and the outer diameter of the rigid gasket is adapted to the diameter of the fixing hole of the object to be fixed.

[0014] In any of the above technical solutions, further, the socket assembly includes:

[0015] A first sleeve, provided with a first socket portion and a second step surface, the first socket portion is sleeved on the outer side of the bolt, the second step surface is arranged at one end of the first socket portion away from the nut, the outer diameter of the second step surface is less than or equal to the diameter of the fixing hole of the object to be fixed, and the second step surface is used to abut against one of the fixing assemblies;

[0016] A second sleeve, provided with a second socket portion and a third step surface, the second socket portion is sleeved on the outer side of the first socket portion, the card slot is arranged on the outer side of the second socket portion, the third step surface is arranged at one end of the second socket portion close to the nut, the outer diameter of the third step surface is less than or equal to the diameter of the fixing hole of the object to be fixed, and the third step surface is used to abut against another one of the fixing assemblies.

[0017] In any of the above technical solutions, further, the first sleeve is provided with a fourth step surface, the fourth step surface is connected to the second step surface, the outer diameter of the fourth step surface is greater than the outer diameter of the second step surface, and a sealing washer is arranged between the fourth step surface and the object to be fixed;

[0018] The second sleeve is provided with a fifth step surface, the fifth step surface is connected to the third step surface, the outer diameter of the fifth step surface is greater than the outer diameter of the third step surface, and another sealing washer is arranged between the fifth step surface and the object to be fixed.

[0019] The beneficial effects are as follows:

[0020] 1. For an anti-deformation fastener of the present invention, the socket assembly is used to bear a plurality of support ribs on the outer peripheral side, and the tangential force that can be borne in the radial direction of the bolt is increased by a plurality of support ribs arranged along the radial direction of the bolt on the outer peripheral side, reducing the situation that the bolt is prone to bending in the radial direction;

[0021] 2. Through the setting of the socket component, the support fins are easily fixed in the fixing holes of the object to be fixed. At the same time, by the socket component abutting against the bolt and the nut respectively, the positions of the support fins and the socket component in the axial direction of the bolt are fixed, and the anti-deformation fastener is fixed on the object to be fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] 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 the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0023] Figure 1 is a three-dimensional structural schematic diagram of an anti-deformation fastener of the present invention;

[0024] Figure 2 is a cross-sectional structural schematic diagram of an anti-deformation fastener of the present invention.

[0025] The description of the reference numerals is as follows:

[0026] 1. Bolt; 101. End portion; 102. Shank portion;

[0027] 2. Nut;

[0028] 3. Socket component; 301. First sleeve; 302. Second sleeve; 303. First socket portion; 304. Second step surface; 305. Second socket portion; 306. Third step surface; 307. Fourth step surface; 308. Fifth step surface;

[0029] 4. Support fin; 401. First step surface;

[0030] 5. Fixing component; 501. Hard gasket; 502. Soft gasket;

[0031] 6. Sealing washer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] Hereinafter, exemplary embodiments according to the present application will be described in detail with reference to the 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 invention without creative efforts fall within the scope of protection of the present invention.

[0033] It should be noted that, as shown in this application and the claims, unless the context clearly indicates otherwise, words such as "a", "an", "one", and / or "the" are not specifically singular and may also include the plural. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of the clearly identified steps and elements, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements.

[0034] If there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, then such directional indications are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture (as shown in the drawings). If this specific posture changes, then the directional indications will also change accordingly.

[0035] In the present utility model, unless otherwise clearly specified and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integral; 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 elements or the interaction relationship between two elements, unless otherwise clearly limited. 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.

[0036] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, then 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" may 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 A and B are satisfied simultaneously. In addition, the technical solutions between the 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 scope of protection required by the present utility model.

[0037] The present utility model provides a deformation-proof fastener. By mainly relying on the bearing of the socket assembly, a number of support ribs are uniformly arranged on the outer peripheral side of the bolt in a direction perpendicular to the axial direction of the bolt, so as to enhance the radial bending resistance of the deformation-proof fastener.

[0038] The following will detail a deformation-proof fastener of the present application through the following embodiments.

[0039] In this embodiment, asFigure 1 and Figure 2 As shown in and

[0040] , the anti-deformation fastener includes: a bolt 1 and a nut 2 that mates with it;

[0040] a socket assembly 3 sleeved on the bolt 1 and abutting against the bolt 1 and the nut 2 at both ends respectively, for being arranged at a fixing hole of an object to be fixed;

[0041] a plurality of support ribs 4, a plurality of card slots are provided on the outer side surface of the socket assembly 3, each support rib 4 is clamped in each card slot, and each support rib 4 is arranged along the radial direction of the bolt 1.

[0042] In this technical solution, the bolt 1 includes an end portion 101 and a rod portion 102. The bolt 1 is arranged in the left-right direction. The left part of the rod portion 102 is not provided with threads, and the right part of the rod portion 102 is provided with threads. The nut 2 is screwed on the right-threaded part of the rod portion 102 of the bolt 1. Specifically, the threads on the rod portion 102 extend to the position corresponding to the third step surface 306 at the right end of the second sleeve 302. The socket assembly 3 is sleeved on the rod portion 102 of the bolt 1. The socket assembly 3 is composed of a first sleeve 301 and a second sleeve 302. A plurality of card slots horizontally extending in the left-right direction are evenly provided on the outer peripheral side of the second sleeve 302 of the socket assembly 3. The thickness of the card slots is equal to the thickness of the support ribs 4. Each support rib 4 is horizontally clamped in each card slot in the left-right direction, and due to the limitation of the card slots, each support rib 4 is perpendicular to the axial direction of the bolt 1, or in other words, each support rib 4 is arranged along the radial direction of the bolt 1.

[0043] In this embodiment, it further includes:

[0044] two fixing components 5, the outer diameter of the fixing component 5 is adapted to the diameter of the fixing hole of the object to be fixed. First step surfaces 401 are provided at both ends of each support rib 4. The two fixing components 5 are respectively arranged at the two first step surfaces 401, and the two fixing components 5 are both sleeved on the outer sides of each support rib 4. The mutually remote side surfaces of the two fixing components 5 are used for abutting against the socket assembly 3.

[0045] In this technical solution, the outer sides of the respective supporting fins 4 are in a relatively movable state, and a fixing assembly 5 is provided to circumferentially limit and fix the outer side surfaces of the supporting fins 4, facilitating the fixing of the socket assembly 3 and the respective supporting fins 4 in the fixing holes of the object to be fixed. At the same time, the fixing assembly 5 is provided to facilitate the increase of the length of the socket assembly 3 in the left-right direction. Specifically, the second step surface 304 of the first sleeve 301 abuts against the left fixing assembly 5, the left fixing assembly 5 abuts against the first step surface 401 on the left side of the supporting fin 4, and the third step surface 306 of the second sleeve 302 abuts against the right fixing assembly 5, and the right fixing assembly 5 abuts against the first step surface 401 on the right side of the supporting fin 4, realizing the left-right direction limit of the socket assembly 3, the fixing assembly 5 and the supporting fin 4, and the number of hard gaskets 501 of the fixing assembly 5 can be increased within a certain range to match objects to be fixed with different thicknesses.

[0046] Two first step surfaces 401 are symmetrically provided on the left and right sides of the supporting fin 4. The first step surface 401 is provided in an L shape. A part of the first step surface 401 is parallel to the axial direction of the bolt 1 (referred to as the horizontal part), and another part is parallel to the radial direction of the bolt 1 (referred to as the vertical part). The inner side surfaces of the fixing assemblies 5 on the left and right sides abut against the outer side surfaces of the parts of the first step surfaces 401 of the respective supporting fins 4 that are parallel to the axial direction of the bolt 1, that is, abut against the outer sides of the horizontal parts. The right side surface of the left fixing assembly 5 abuts against the left side surface of the part of the left first step surface 401 that is parallel to the radial direction of the bolt 1, that is, abuts against the left side surface of the vertical part of the left first step surface 401. Similarly, the left side surface of the right fixing assembly 5 abuts against the right side surface of the vertical part of the right first step surface 401.

[0047] In this embodiment, the part between the two first step surfaces 401 of each supporting fin 4 is inclined with respect to the axial direction of the bolt 1;

[0048] Or, the part between the two first step surfaces 401 of each supporting fin 4 is provided in an arc shape with respect to the axial direction of the bolt 1.

[0049] In this technical solution, the outer side surfaces of the middle parts of the two first step surfaces 401 of each supporting fin 4 are provided as two symmetrically arranged inclined surfaces to enhance the yield force required to overcome when the supporting fin 4 bends along the radial direction of the bolt 1.

[0050] In this embodiment, the fixing assembly 5 includes:

[0051] At least one rigid gasket 501 and at least one flexible gasket 502, the rigid gasket 501 and the flexible gasket 502 overlap each other, the rigid gasket 501 or the flexible gasket 502 abuts against the socket assembly 3, the inner diameter of the rigid gasket 501 is equal to the outer diameter of the first stepped surface 401, and the outer diameter of the rigid gasket 501 is adapted to the diameter of the fixing hole of the object to be fixed.

[0052] In this technical solution, the numbers of the rigid gasket 501 and the flexible gasket 502 can be set as required. Here, four rigid gaskets 501 and one flexible gasket 502 are set. The flexible gasket 502 is arranged in the middle, and the four rigid gaskets 501 are symmetrically arranged in pairs. The leftmost rigid gasket 501 of the left fixing assembly 5 abuts against the second stepped surface 304, and the rightmost rigid gasket 501 of the left fixing assembly 5 abuts against the first stepped surface 401. The outer diameter of the rigid washer is equal to or slightly larger than the diameter of the fixing hole, and the inner diameter of the rigid washer is equal to the outer diameter of the horizontal part of the first stepped surface 401.

[0053] In this embodiment, the socket assembly 3 includes:

[0054] A first sleeve 301, provided with a first socket part 303 and a second stepped surface 304. The first socket part 303 is sleeved outside the bolt 1, and the second stepped surface 304 is arranged at one end of the first socket part 303 away from the nut 2. The outer diameter of the second stepped surface 304 is less than or equal to the diameter of the fixing hole of the object to be fixed, and the second stepped surface 304 is used to abut against a fixing assembly 5;

[0055] A second sleeve 302, provided with a second socket part 305 and a third stepped surface 306. The second socket part 305 is sleeved outside the first socket part 303, a card slot is arranged outside the second socket part 305, and the third stepped surface 306 is arranged at one end of the second socket part 305 close to the nut 2. The outer diameter of the third stepped surface 306 is less than or equal to the diameter of the fixing hole of the object to be fixed, and the third stepped surface 306 is used to abut against another fixing assembly 5.

[0056] In this technical solution, both the first sleeve 301 and the second sleeve 302 are circumferentially symmetric structures. The inner diameter of the first socket part 303 is equal to the outer diameter of the rod part 102 of the bolt 1. The second step surface 304 is arranged on the left side of the first socket part 303 and extends outward. The outer diameter of the outer side surface of the second step surface 304 is less than or equal to the diameter of the fixing hole of the object to be fixed. The right side of the second step surface 304 abuts against the left fixing component 5. The inner diameter of the second socket part 305 is equal to the outer diameter of the first socket part 303. A number of card slots are evenly arranged on the outer side of the second sleeve 302. The third step surface 306 is arranged on the right side of the second socket part 305 and extends outward. The outer diameter of the outer side surface of the third step surface 306 is less than or equal to the diameter of the fixing hole of the object to be fixed. The left side of the third step surface 306 abuts against the right fixing component 5.

[0057] In this embodiment, the first sleeve 301 is provided with a fourth step surface 307. The fourth step surface 307 is connected to the second step surface 304. The outer diameter of the fourth step surface 307 is greater than the outer diameter of the second step surface 304. A sealing washer 6 is arranged between the fourth step surface 307 and the object to be fixed.

[0058] The second sleeve 302 is provided with a fifth step surface 308. The fifth step surface 308 is connected to the third step surface 306. The outer diameter of the fifth step surface 308 is greater than the outer diameter of the third step surface 306. Another sealing washer 6 is arranged between the fifth step surface 308 and the object to be fixed.

[0059] In this technical solution, the fourth step surface 307 is arranged on the left side of the second step surface 304 and extends outward. The left side of the fourth step surface 307 abuts against the end part 101 of the bolt 1. The right side of the fourth step surface 307 abuts against the left side of the object to be fixed through the sealing washer 6. The fifth step surface 308 is arranged on the right side of the third step surface 306 and extends outward. The right side of the fifth step surface 308 abuts against the nut 2. The left side of the fifth step surface 308 abuts against the right side of the object to be fixed through another sealing washer 6.

[0060] Generally speaking, for this anti-deformation fastener, axially, the end part 101 of the bolt 1 abuts against the left side of the fourth step surface 307, the right side of the fourth step surface 307 abuts against the left side of the object to be fixed through a sealing washer 6. At the same time, the fourth step surface 307 is connected to the second step surface 304. The second step surface 304 abuts against the left side of the support rib through the left fixing component 5. The right side of the support rib abuts against the third step surface 306 through the right fixing component 5. The third step surface 306 is connected to the fifth step surface 308. The left side of the fifth step surface 308 abuts against the right side of the object to be fixed through another sealing washer 6. At the same time, the right side of the fifth step surface 308 abuts against the nut 2, achieving axial fixation.

[0061] In the radial direction, the fixing component 5 of the object to be fixed abuts against the fixing object through the object to be fixed, and abuts against the soft gasket 502 with deformability by extrusion. The inner side of the fixing component 5 abuts against the supporting rib plate, the inner side of the supporting rib plate abuts against the second sleeve 302, and the second sleeve 302 is sleeved with the first sleeve 301 and the rod portion 102 of the bolt 1 to achieve the fixing in the radial direction.

[0062] The embodiments of the present disclosure have been described above. The above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes 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, practical applications, or improvements to the technology in the market, or to enable other ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A deformation-proof fastener, characterized in that, Comprising: A bolt (1) and a nut (2) that mates with it; A socket assembly (3) sleeved on the bolt (1), with both ends respectively abutting against the bolt (1) and the nut (2), and is used to be arranged at the fixing hole of the object to be fixed; A plurality of support ribs (4), the outer side of the socket assembly (3) is provided with a plurality of card slots, each of the support ribs (4) is snap-fitted into each of the card slots, and each of the support ribs (4) is arranged along the radial direction of the bolt (1).

2. The anti-deformation fastener according to claim 1, wherein Further comprising: Two fixing components (5), the outer diameter of the fixing component (5) is adapted to the diameter of the fixing hole of the object to be fixed, both ends of each of the support ribs (4) are provided with a first stepped surface (401), the two fixing components (5) are respectively arranged at the two first stepped surfaces (401), and the two fixing components (5) are both sleeved on the outer side of each of the support ribs (4), and the mutually facing sides of the two fixing components (5) are used to abut against the socket assembly (3).

3. The anti-deformation fastener according to claim 2, wherein The portion between the two first stepped surfaces (401) of each of the support ribs (4) is inclined with respect to the axial direction of the bolt (1); Or, the portion between the two first stepped surfaces (401) of each of the support ribs (4) is arranged in an arc with respect to the axial direction of the bolt (1).

4. The anti-deformation fastener according to claim 2, wherein The fixing component (5) includes: At least one rigid gasket (501) and at least one flexible gasket (502), the rigid gasket (501) and the flexible gasket (502) overlap each other, the rigid gasket (501) or the flexible gasket (502) abuts against the socket assembly (3), the inner diameter of the rigid gasket (501) is equal to the outer diameter of the first stepped surface (401), and the outer diameter of the rigid gasket (501) is adapted to the diameter of the fixing hole of the object to be fixed.

5. The anti-deformation fastener according to claim 2, wherein, The socket assembly (3) includes: A first sleeve (301), provided with a first socket portion (303) and a second stepped surface (304), the first socket portion (303) is sleeved on the outer side of the bolt (1), the second stepped surface (304) is arranged at one end of the first socket portion (303) away from the nut (2), the outer diameter of the second stepped surface (304) is less than or equal to the diameter of the fixing hole of the object to be fixed, and the second stepped surface (304) is used to abut against one of the fixing components (5); A second sleeve (302), provided with a second socket portion (305) and a third stepped surface (306), the second socket portion (305) is sleeved on the outer side of the first socket portion (303), the card slot is arranged on the outer side of the second socket portion (305), the third stepped surface (306) is arranged at one end of the second socket portion (305) close to the nut (2), the outer diameter of the third stepped surface (306) is less than or equal to the diameter of the fixing hole of the object to be fixed, and the third stepped surface (306) is used to abut against the other fixing component (5).

6. The anti-deformation fastener according to claim 5, wherein, The first sleeve (301) is provided with a fourth step surface (307), the fourth step surface (307) is connected to the second step surface (304), the outer diameter of the fourth step surface (307) is larger than the outer diameter of the second step surface (304), and a sealing washer (6) is provided between the fourth step surface (307) and the object to be fixed; The second sleeve (302) is provided with a fifth step surface (308), the fifth step surface (308) is connected to the third step surface (306), the outer diameter of the fifth step surface (308) is larger than the outer diameter of the third step surface (306), and another sealing washer (6) is provided between the fifth step surface (308) and the object to be fixed.

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