A high-strength bolt with anti-loosening structure suitable for vibration environment

Abstract

The utility model relates to a high-strength bolt with an anti-loosening structure suitable for use in a vibration environment, comprising a nut and a screw, one end of the screw being fixedly connected to the nut; characterized in that: a mounting groove is provided on the nut, the mounting groove is located on the surface of the nut facing the screw, one end of the screw is located in the middle of the nut, and a thread is provided on the outside of the screw; an elastic element and a contact member are provided in the mounting groove of the nut, and the screw is located in the middle of the annular mounting groove; the screw comprises a first piece and a second piece, threads are provided on the side arc surfaces of the first piece and the second piece, and the first piece and the second piece are separated; the first piece is movably connected to the second piece through a tensioning piece, and a middle groove is provided between the first piece and the second piece. The utility model provides a high-strength bolt with an anti-loosening structure suitable for use in a vibration environment, which avoids the loosening of the bolt after long-term use, improves the stability of the bolt connection, and avoids safety hazards during use.

Description

Technical Field

[0001] The utility model relates to the field of anti-loosening high-strength bolts, in particular to a high-strength bolt with an anti-loosening structure suitable for a vibration environment. Background Art

[0002] Fasteners are a type of connector commonly used in industrial production, used to stably connect two separate parts together; fasteners include rivets, keys, pins, bolts and other connectors, among which bolts are the most commonly used fasteners; bolts include nuts and screw parts.

[0003] During the use of bolts, it is sometimes necessary to connect vibrating parts. Since the connected parts will continue to vibrate, the bolts are prone to loosening after long-term use. Now this problem is urgently needed. Utility Model Content

[0004] The purpose of the utility model is to provide a high-strength bolt with an anti-loosening structure suitable for a vibration environment to solve the above problems.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A high-strength bolt with an anti-loosening structure suitable for use in a vibration environment, comprising a nut and a screw, one end of the screw being fixedly connected to the nut; characterized in that: a mounting groove is provided on the nut, the mounting groove is located on the surface of the nut facing the screw, one end of the screw is located in the middle of the nut, and a thread is provided on the outside of the screw;

[0007] An elastic element and a contact piece are arranged in the installation groove of the nut, and the screw rod is located in the middle of the annular installation groove;

[0008] The screw comprises a first piece and a second piece, the side arc surfaces of the first piece and the second piece are provided with threads, and the first piece and the second piece are separated;

[0009] The first piece is movably connected to the second piece through a tensioning piece, and a middle groove is arranged between the first piece and the second piece.

[0010] Furthermore, the contact piece is movably connected to the bottom of the mounting groove through an elastic element, the contact piece is partially located outside the mounting groove, and the elastic element is located inside the mounting groove.

[0011] Furthermore, the contact piece and the elastic element are both annular parts, and the center of the elastic element is concentric with the center of the screw.

[0012] Furthermore, the contact piece is specifically made of a rigid material, and the elastic element is made of a flexible material.

[0013] Furthermore, the material of the contact piece is specifically carbon steel, and the material of the elastic element is specifically silicone rubber.

[0014] Furthermore, the cross-sections of the first piece and the second piece are both spherical crown-shaped, and the side arcs of the first piece and the second piece are on the trajectory of the same circle.

[0015] Furthermore, the first piece is fixedly connected to the nut, and the second piece is separated from the nut; an end of the first piece away from the nut and an end of the second piece away from the nut are on the same plane.

[0016] Furthermore, the tensioning member is located in the middle groove, the number of the tensioning member is not less than one, and the tensioning member is specifically made of elastic material.

[0017] Furthermore, the tensioning member is connected to multiple parts of the first member and the second member, the tensioning member is specifically spiral-shaped, and the tensioning member is specifically an even number.

[0018] Furthermore, the material of the tensioning piece is spring steel, the tensioning piece is welded to the first piece and the second piece at multiple locations, there are two tensioning pieces, the tensioning piece is symmetrical about the central axis of the screw, and the tensioning piece is connected to the first piece and the second piece at parts away from the central axis.

[0019] The beneficial effects of the utility model are: providing a high-strength bolt with an anti-loosening structure suitable for a vibration environment, by using a nut, a screw rod, a first piece, a second piece and a tensioning piece in coordination with each other, a high-strength bolt with an anti-loosening structure suitable for a vibration environment is manufactured to replace traditional bolts, so that the bolt has a tensioning force during use, overcomes the effect of vibration, avoids the loosening of the bolt after long-term use, improves the stability of the bolt connection, and avoids safety hazards during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is an axonometric diagram of the overall structure of a high-strength bolt with an anti-loosening structure suitable for a vibration environment according to the utility model.

[0021] Figure 2 This is another overall structural axonometric diagram of the utility model, a high-strength bolt with an anti-loosening structure suitable for use in a vibration environment.

[0022] Figure 3 This is a front view of the overall structure of a high-strength bolt with an anti-loosening structure suitable for a vibration environment according to the utility model.

[0023] Figure 4 This is a partial structural axonometric diagram of a high-strength bolt with an anti-loosening structure suitable for a vibration environment according to the utility model.

[0024] In the figure: 1. nut; 2. mounting groove; 3. elastic element; 4. contact piece; 5. screw rod; 6. first piece; 7. second piece; 8. middle groove; 9. tensioning piece. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. The same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described in the accompanying drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0026] In the description of the present utility model, it is necessary to understand that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features, and in the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0027] refer to Figures 1 to 4 , a high-strength bolt with anti-loosening structure suitable for vibration environment, comprising a nut 1 and a screw 5, one end of the screw 5 is fixedly connected to the nut 1; characterized in that: a mounting groove 2 is provided on the nut 1, which is used to serve as the mounting position of the elastic element 3 and the contact member 4, the mounting groove 2 is located on the surface of the nut 1 facing the screw 5, one end of the screw 5 is located in the middle of the nut 1, which is used to ensure that the screw 5 is uniformly stressed when the nut 1 is rotated, and the screw 5 is provided with a thread on the outside for connecting with the threaded hole;

[0028] The mounting groove 2 of the nut 1 is provided with an elastic element 3 and a contact piece 4, which are used to contact the outside of the connection hole to generate a pulling force on the screw 5 after the bolt connection is completed, so as to overcome the force of the vibration environment on the bolt and make the bolt not easy to loosen. The screw 5 is located in the middle of the annular mounting groove 2;

[0029] The screw rod 5 includes a first piece 6 and a second piece 7, wherein the first piece 6 and the second piece 7 are provided with threads on their side arc surfaces for connecting with the threaded hole, and the first piece 6 and the second piece 7 are separated to ensure that the first piece 6 and the second piece 7 can maintain a stable connection with the threaded hole under the action of the tensioning member 9 in a vibration environment;

[0030] The first piece 6 is movably connected to the second piece 7 via a tensioning piece 9 to ensure that both can maintain a stable connection with the threaded hole under a vibration environment under the action of the tensioning piece 9. A middle groove 8 is provided between the first piece 6 and the second piece 7 for placing the tensioning piece 9.

[0031] The contact member 4 is movably connected to the bottom of the mounting groove 2 via the elastic element 3 . Part of the contact member 4 is located outside the mounting groove 2 , and the elastic element 3 is located inside the mounting groove 2 .

[0032] The contact member 4 and the elastic element 3 are both annular parts, and the center of the elastic element 3 is concentric with the center of the screw rod 5 to ensure that the screw rod 5 is subjected to uniform force.

[0033] The contact member 4 is specifically made of a rigid material to ensure that the contact member 4 is not easily deformed, and the elastic element 3 is made of a flexible material to ensure that the elastic element 3 can be reset when no force is applied.

[0034] The material of the contact member 4 is specifically carbon steel, which is used to ensure that the contact member 4 is not easily deformed. The material of the elastic element 3 is specifically silicone rubber, which is used to ensure that the elastic element 3 can be reset when no force is applied.

[0035] The cross sections of the first piece 6 and the second piece 7 are both spherical crown-shaped, and the side arcs of the first piece 6 and the second piece 7 are on the same circle trajectory, so as to match the shape of the threaded hole.

[0036] The first piece 6 is fixedly connected to the nut 1, and the second piece 7 is separated from the nut 1; an end of the first piece 6 away from the nut 1 and an end of the second piece 7 away from the nut 1 are on the same plane.

[0037] The tensioning member 9 is located in the middle groove 8 . The number of the tensioning member 9 is not less than one. The tensioning member 9 is specifically made of elastic material and is used to maintain the tensioning force on the first member 6 and the second member 7 .

[0038] The tensioning member 9 is connected to multiple parts of the first member 6 and the second member 7 to maintain the tensioning force on the first member 6 and the second member 7. The tensioning member 9 is specifically spiral-shaped, and the tensioning member 9 is specifically an even number to ensure that the first member 6 and the second member 7 are evenly stressed.

[0039] The material of the tensioning member 9 is specifically spring steel, and the tensioning member 9 is welded to the first member 6 and the second member 7 at multiple locations. There are specifically two tensioning members 9, and the tensioning members 9 are symmetrical about the central axis of the screw 5. The tensioning member 9 is connected to the first member 6 and the second member 7 at parts away from the central axis, so as to maintain the tensioning force on the first member 6 and the second member 7, and both are subjected to uniform force.

[0040] The working principle of the utility model is as follows: before starting to use a high-strength bolt with an anti-loosening structure suitable for a vibration environment, take out the high-strength bolt with an anti-loosening structure suitable for a vibration environment; when starting to use a high-strength bolt with an anti-loosening structure suitable for a vibration environment: insert the ends of the first piece 6 and the second piece 7 into the threaded holes to be connected, and then the operator uses a wrench to rotate the nut 1, thereby driving the first piece 6 and the second piece 7 to rotate in the threaded hole. In this process, the external threads on the first piece 6 and the second piece 7 rotate on the internal threads of the threaded hole. In this process, the first piece 6 and the second piece 7 The tensioning member 9 in the middle groove 8 is partially compressed. During this process, the first member 6 and the second member 7 rotate forward in the threaded hole until the contact member 4 contacts the part outside the threaded hole. During this process, the contact member 4 partially compresses the elastic element 3, and then the operator stops rotating the nut 1. During use, due to the action of the tensioning member 9, the connection stability between the first member 6 and the second member 7 and the threaded hole is good. The reset effect of the elastic element 3 makes the connection between the external threads of the first member 6 and the second member 7 and the threaded hole tighter, overcoming the influence of vibration and preventing the bolt from loosening. When removing the bolt, just rotate the nut 1 in the opposite direction.

[0041] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field of the present invention, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A high-strength bolt with an anti-loosening structure suitable for use in a vibration environment, comprising a nut (1) and a screw rod (5), one end of the screw rod (5) being fixedly connected to the nut (1); characterized in that: The nut (1) is provided with a mounting groove (2), the mounting groove (2) being located on the surface of the nut (1) facing the screw rod (5), one end of the screw rod (5) being located in the middle of the nut (1), and the outside of the screw rod (5) being provided with a thread; An elastic element (3) and a contact piece (4) are arranged in the mounting groove (2) of the nut (1), and the screw rod (5) is located in the middle of the annular mounting groove (2); The screw rod (5) comprises a first piece (6) and a second piece (7), the side arc surfaces of the first piece (6) and the second piece (7) are provided with threads, and the first piece (6) and the second piece (7) are separated; The first piece (6) is movably connected to the second piece (7) via a tensioning piece (9), and a middle groove (8) is provided between the first piece (6) and the second piece (7).

2. The high-strength bolt with anti-loosening structure suitable for use in a vibration environment according to claim 1, characterized in that: The contact piece (4) is movably connected to the bottom of the mounting groove (2) via an elastic element (3); a portion of the contact piece (4) is located outside the mounting groove (2), and the elastic element (3) is located inside the mounting groove (2).

3. The high-strength bolt with anti-loosening structure suitable for use in a vibration environment according to claim 2, characterized in that: The contact piece (4) and the elastic element (3) are both annular parts, and the center of the elastic element (3) is concentric with the center of the screw rod (5).

4. The high-strength bolt with anti-loosening structure suitable for use in a vibration environment according to claim 3, characterized in that: The contact piece (4) is specifically made of a rigid material, and the elastic element (3) is made of a flexible material.

5. The high-strength bolt with anti-loosening structure suitable for use in a vibration environment according to claim 4, characterized in that: The material of the contact piece (4) is specifically carbon steel, and the material of the elastic element (3) is specifically silicone rubber.

6. The high-strength bolt with anti-loosening structure suitable for use in a vibration environment according to claim 1, characterized in that: The cross sections of the first piece (6) and the second piece (7) are both spherical crown-shaped, and the side arcs of the first piece (6) and the second piece (7) are on the trajectory of the same circle.

7. The high-strength bolt with anti-loosening structure suitable for use in a vibration environment according to claim 6, characterized in that: The first piece (6) is fixedly connected to the nut (1), and the second piece (7) is separated from the nut (1); an end of the first piece (6) away from the nut (1) and an end of the second piece (7) away from the nut (1) are on the same plane.

8. The high-strength bolt with anti-loosening structure suitable for use in a vibration environment according to claim 1, characterized in that: The tensioning member (9) is located in the middle groove (8), the number of the tensioning member (9) is not less than one, and the tensioning member (9) is specifically made of elastic material.

9. The high-strength bolt with anti-loosening structure suitable for use in a vibration environment according to claim 8, characterized in that: The tensioning member (9) is connected to multiple parts of the first member (6) and the second member (7); the tensioning member (9) is specifically spiral-shaped; and the tensioning member (9) is specifically an even number.

10. The high-strength bolt with anti-loosening structure suitable for use in a vibration environment according to claim 9, characterized in that: The material of the tensioning member (9) is specifically spring steel. The tensioning member (9) is welded to the first member (6) and the second member (7) at multiple locations. There are specifically two tensioning members (9). The tensioning members (9) are symmetrical about the central axis of the screw rod (5). The tensioning member (9) is connected to the first member (6) and the second member (7) at portions away from the central axis.

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