Flange nut precision forging piece

Abstract

The utility model relates to the technical field of nuts, and discloses a flange nut precision forge piece which comprises a nut body, the nut body comprises an upper shell, a lower shell is installed at the lower end of the upper shell, a first installation groove is formed in the upper shell, four fixing blocks are installed on the inner surface of the first installation groove and evenly distributed, and the fixing blocks are arranged in the first installation groove. A threaded sleeve is mounted in the first mounting groove, and a clamping structure is mounted in the lower shell. According to the flange nut, the threaded sleeve is installed in the nut body, the nut body and the threaded sleeve can be separated by shifting the clamping structure when threads are abraded, only the threaded sleeve needs to be replaced, the whole flange nut does not need to be replaced, and the use cost is greatly saved.

Description

Technical Field

[0001] The utility model relates to the technical field of nuts, in particular to a precision forging of a flange nut. Background Technique

[0002] Flange nuts, also known as gasket nuts, serrated nuts, hexagon flange nuts, flange nuts, etc., are mostly used in pipeline connections or workpieces that require an increased contact surface of the nut. The flange nut and the general hexagon nut have basically the same size and thread specification. However, compared with the hexagon nut, it is an integrated structure of the gasket and the nut, which increases the surface area contact between the nut and the workpiece. Compared with the combination of an ordinary nut and a washer, it is more firm and has a greater tensile force.

[0003] The utility model patent application document with the publication number of "CN211343676U" discloses a flange nut, which mainly consists of a mounting head, a pad disc, a threaded hole, a spring and a pressing member. This technical solution has the advantage of good anti-loosening effect, and solves the problem that when the existing flange nut is installed in an oil pipeline or an environment with relatively frequent vibrations, due to the relatively smooth bottom of the flange part, the flange part is easily affected by the surrounding environment and loosens. Once the flange part loosens, the flange nut will be detached from the bolt.

[0004] The flange nut disclosed in the above document has the following defects: After the flange nut has been used for a period of time, the thread inside the threaded hole is easily worn, and the flange nut cannot be fixed. Since the thread inside the threaded hole is integrated with the flange nut, it is impossible to replace a single part.

[0005] It can be seen from this that the existing flange nut does not have a structure that is convenient for replacing a single part, and it is necessary to improve the existing deficiencies and provide a precision forging of a flange nut. Content of the Utility Model

[0006] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0007] The utility model is a precision forging of a flange nut, including a nut body. The nut body includes an upper shell, a lower shell is installed at the lower end of the upper shell. A first installation groove is opened inside the upper shell. A fixing block is installed on the inner surface of the first installation groove. The fixing blocks are set to be four and are evenly distributed. A threaded sleeve is installed inside the first installation groove. A clamping structure is installed inside the lower shell.

[0008] Further, the threaded sleeve includes a threaded column. A sliding groove is opened on one side of the threaded column. The sliding grooves are set to be four and correspond to the fixing blocks. A clamping groove is opened on one side of one of the sliding grooves. The clamping grooves are set to be two and are symmetrically distributed.

[0009] Furthermore, the snap-fit ​​structure includes a second mounting groove, a movable handle is installed at the upper end of the second mounting groove, the lower end of the movable handle passes through the upper surface of the second mounting groove until it is fitted with one end of the buckle, the other end of the buckle passes through one side of the lower shell until it is fitted with the inner surface of the slot, one end of the movable handle is fitted with one end of the spring, and the other end of the spring is fitted with the inner surface of the second mounting groove.

[0010] Furthermore, the outer surfaces of the upper shell and the lower shell are coated with an anti-rust coating.

[0011] Furthermore, anti-slip teeth are provided at the lower end of the lower shell.

[0012] Furthermore, a through hole is formed at the upper end of the threaded column, and a thread is formed on the inner surface of the through hole.

[0013] The utility model has the following beneficial effects:

[0014] (1) The utility model has a threaded sleeve installed inside the nut body, and when the thread is worn, the nut body and the threaded sleeve can be separated by toggling the engaging structure. Only the threaded sleeve needs to be replaced, and there is no need to replace the entire flange nut, which greatly saves the use cost.

[0015] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the threaded sleeve of the utility model;

[0019] Figure 3 This is a top view of the nut body structure of the utility model;

[0020] Figure 4 It is a partial structural sectional view of the utility model;

[0021] Figure 5 This is an enlarged schematic diagram of the structure at A of the utility model;

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] In the figure: 1. Nut body; 101. Upper shell; 102. Lower shell; 103. Anti-slip teeth; 104. First installation groove; 105. Fixed block; 2. Engaging structure; 201. Second installation groove; 202. Movable handle; 203. Buckle; 204. Spring; 3. Threaded sleeve; 301. Threaded post; 302. Chute; 303. Card slot. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figures 1 - 5 As shown, the present invention is a precision forging of a flange nut, including a nut body 1. The nut body 1 includes an upper shell 101. The lower end of the upper shell 101 is installed with a lower shell 102. A first installation groove 104 is opened inside the upper shell 101. A fixed block 105 is installed on the inner surface of the first installation groove 104. The fixed blocks 105 are set to four and are evenly distributed. A threaded sleeve 3 is installed inside the first installation groove 104. An engaging structure 2 is installed inside the lower shell 102.

[0026] The threaded sleeve 3 includes a threaded post 301. A chute 302 is opened on one side of the threaded post 301. The chutes 302 are set to four and correspond to the fixed blocks 105. Card slots 303 are opened on one side of one of the chutes 302. The card slots 303 are set to two and are symmetrically distributed. When the thread is worn due to the separate setting of the threaded sleeve 3 and the nut body 1, only a single threaded sleeve 3 needs to be replaced, which greatly saves the use cost.

[0027] The engaging structure 2 includes a second installation groove 201. A movable handle 202 is installed at the upper end of the second installation groove 201. The lower end of the movable handle 202 penetrates the upper surface of the second installation groove 201 until it fits with one end of the buckle 203. The other end of the buckle 203 penetrates one side of the lower shell 102 until it fits with the inner surface of the card slot 303. One end of the movable handle 202 fits with one end of the spring 204. The other end of the spring 204 fits with the inner surface of the second installation groove 201.

[0028] Anti-rust coatings are applied to the outer surfaces of the upper shell 101 and the lower shell 102, which can protect the surfaces of the upper shell 101 and the lower shell 102, and greatly increase the service life of the parts.

[0029] The lower end of the lower shell 102 is provided with anti-slip teeth 103, which greatly increases the surface area contact between the nut and the workpiece.

[0030] The upper end of the threaded post 301 is provided with a through hole, and the inner surface of the through hole is provided with threads.

[0031] During use, first, the movable handle 202 is toggled to one side of the lower shell 102, the spring 204 is compressed by the movable handle 202 to make the spring 204 contract, and then the movable handle 202 drives the buckle 203 to move synchronously until the outer surface of the buckle 203 is separated from the inner surface of the card slot 303. Then, hold the threaded sleeve 3 and take it out downward. Then, install a new threaded sleeve 3. First, the inner surface of the card slot 303 on one side of the threaded sleeve 3 is fitted with the outer surface of the fixed block 105, and then the threaded sleeve 3 is completely slid into the interior of the first installation groove 104. The threaded sleeve 3 can be limited by the snap connection between the card slot 303 and the fixed block 105. When the installation of the threaded sleeve 3 is completed, release the movable handle 202. At this time, the spring 204 rebounds and pushes the movable handle 202 to move to the other side of the lower shell 102, thereby driving the buckle 203 to move toward the threaded sleeve 3 until the outer surface of the buckle 203 is fitted with the inner surface of the card slot 303. At this time, the installation is completed. By installing the threaded sleeve 3 inside the nut body 1, when the thread is worn, the nut body 1 and the threaded sleeve 3 can be separated by toggling the snap structure 2, and only the threaded sleeve 3 needs to be replaced, without replacing the entire flange nut, which greatly saves the use cost.

[0032] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present invention, so that those skilled in the art can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A precision forging of a flange nut, comprising a nut body (1), characterized in that: The nut body (1) includes an upper shell (101), a lower shell (102) is installed at the lower end of the upper shell (101), a first installation groove (104) is formed inside the upper shell (101), a fixing block (105) is installed on the inner surface of the first installation groove (104), the fixing blocks (105) are set to four and are evenly distributed, a threaded sleeve (3) is installed inside the first installation groove (104), and a clamping structure (2) is installed inside the lower shell (102).

2. The precision forging of a flange nut according to claim 1, characterized in that: The threaded sleeve (3) includes a threaded post (301), a chute (302) is formed on one side of the threaded post (301), the chutes (302) are set to four and correspond to the fixing blocks (105), and a clamping groove (303) is formed on one side of one of the chutes (302), the clamping grooves (303) are set to two and are symmetrically distributed.

3. A precision forging of a flange nut according to claim 1, characterized in that: The clamping structure (2) includes a second installation groove (201), a movable handle (202) is installed at the upper end of the second installation groove (201), the lower end of the movable handle (202) penetrates through the upper surface of the second installation groove (201) until it fits with one end of a buckle (203), the other end of the buckle (203) penetrates through one side of the lower shell (102) until it fits with the inner surface of the clamping groove (303), one end of the movable handle (202) fits with one end of a spring (204), and the other end of the spring (204) fits with the inner surface of the second installation groove (201).

4. The precision forging of a flange nut according to claim 1, characterized in that: Antirust coatings are applied to the outer surfaces of the upper shell (101) and the lower shell (102).

5. A precision forging of a flange nut according to claim 1, characterized in that: Anti-slip teeth (103) are formed at the lower end of the lower shell (102).

6. The precision forging of a flange nut according to claim 2, characterized in that: A through hole is formed at the upper end of the threaded post (301), and threads are formed on the inner surface of the through hole.

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