CN-224200952-U - Backstop nut assembly

Abstract

The utility model relates to the technical field of nuts, in particular to a retaining nut assembly, which comprises a bolt and a retaining assembly, wherein the retaining assembly comprises a main nut, the main nut is arranged on the outer surface of the bolt in a threaded manner, the main nut is in an octagonal block shape, the lower surface of the main nut is rotationally provided with an annular block-shaped locking nut, the lower surface of the main nut is provided with a groove, and two L-shaped block-shaped connecting blocks are fixedly arranged in the groove.

Inventors

• LI ZHIBANG
• WANG ZHIQIANG
• WANG SENLIN

Assignees

• 浙江豫鑫电气有限公司

Dates

Publication Date

20260505

Application Date

20250617

Claims (6)

1. 1. The anti-back nut assembly comprises a bolt (1) and an anti-back assembly and is characterized by comprising a main nut (3), wherein the main nut (3) is arranged on the outer surface of the bolt (1) in a threaded manner, and the main nut (3) is in an octagonal block shape; The lower surface rotation of main nut (3) is provided with annular cubic lock nut (4), and recess (5) are seted up to the lower surface of main nut (3), and the inside of recess (5) is fixed to be provided with two cubic connecting blocks (6) of L shape, and sliding tray (7) have been seted up to the inboard of lock nut (4), and the lower extreme of two connecting blocks (6) slides and sets up in the inside of sliding tray (7), and the inboard laminating of two connecting blocks (6) sets up the surface at bolt (1).
2. 2. The backstop nut assembly according to claim 1, characterized in that the outer surface of the lock nut (4) is provided with two moving grooves (8), and the inner parts of the two moving grooves (8) are both provided with moving blocks (9) in a sliding manner.
3. 3. A retaining nut assembly according to claim 2, characterized in that rectangular holes are provided in the tops of both said moving grooves (8), two moving blocks (9) are slid inside the two rectangular holes, respectively, and two moving blocks (9) are slid inside the grooves (5).
4. 4. A retaining nut assembly according to claim 3, characterized in that the springs (10) are fixedly arranged on one side of both said moving blocks (9), and that one ends of both springs (10) are fixedly arranged inside the recess (5).
5. 5. The backstop nut assembly according to claim 2, wherein one side of each of the two moving blocks (9) is rotatably provided with a push rod (11), the inner sides of the two moving grooves (8) are fixedly provided with fixed blocks, and the two push rods (11) are respectively arranged in the middle of the two fixed blocks in a threaded manner.
6. 6. The retaining nut assembly according to claim 5, characterized in that clamping blocks (13) are fixedly arranged at the upper ends of the two moving blocks (9), two clamping grooves (12) are formed in the outer surface of the bolt (1), the two clamping blocks (13) are respectively inserted into the two clamping grooves (12), and hexagonal block-shaped screw heads (2) are fixedly arranged on the lower surface of the bolt (1).

Description

Backstop nut assembly Technical Field The utility model relates to the technical field of nuts, in particular to a backstop nut assembly. Background Nuts are parts which are screwed together with bolts or screws to play a role in fastening, and all elements which are necessary for manufacturing machines are classified into carbon steel, stainless steel, nonferrous metals and the like according to different materials. Among the prior art, a combination formula nut subassembly as proposed in patent application number "CN202420661683.4", including the nut main part, the nut main part on the cover be equipped with rather than being connected and the dismantlement unit of being convenient for of it, the nut main part be provided with radial outside arch and be used for restricting the bulge loop portion of dismantlement unit position on the periphery wall of one end, the dismantlement unit constitute by outer loop, inner loop and a plurality of rolling element, the inner loop cover locate on the nut main part and be connected with it, an terminal surface of inner loop on set up a plurality of along its circumferencial direction setting and supply corresponding rolling element to stretch into the pilot hole of installation. However, the prior art has the defects that the nut is easy to spin to cause loosening when the existing nut component is vibrated for a long time under the severe working condition, so that safety accidents can be caused and certain economic loss can be caused. Disclosure of utility model The present utility model is directed to a retaining nut assembly, which solves the above-mentioned problems. The aim of the utility model can be achieved by the following technical scheme: The anti-back nut assembly comprises a bolt and an anti-back assembly, wherein the anti-back assembly comprises a main nut, a main nut thread is arranged on the outer surface of the bolt, and the main nut is in an octagonal block shape; The lower surface rotation of main nut is provided with annular massive lock nut, and the lower surface of main nut is seted up flutedly, and the inside of recess is fixed to be provided with two massive connecting blocks of L shape, and the sliding tray has been seted up to the inboard of lock nut, and the lower extreme of two connecting blocks slides and sets up in the inside of sliding tray, and the inboard laminating of two connecting blocks sets up the surface at the bolt. Preferably, two moving grooves are formed in the outer surface of the lock nut, and moving blocks are slidably arranged in the two moving grooves. Preferably, rectangular holes are formed in the tops of the two moving grooves, the two moving blocks slide on the inner sides of the two rectangular holes respectively, and the two moving blocks slide in the grooves. Preferably, springs are fixedly arranged on one sides of the two moving blocks, and one ends of the two springs are fixedly arranged in the grooves. Preferably, one side of each of the two moving blocks is provided with a pushing rod in a rotating mode, the inner sides of the two moving grooves are fixedly provided with fixing blocks, and the two pushing rods are respectively arranged in the middle of the two fixing blocks in a threaded mode. Preferably, two the upper ends of movable block are all fixed and are provided with the fixture block, and two draw-in grooves have been seted up to the surface of bolt, and two fixture blocks peg graft respectively and set up the inside at two draw-in grooves, and the lower fixed surface of bolt is provided with the massive spiral shell head of hexagon. The utility model has the beneficial effects that: According to the utility model, the two pushing rods are rotated to move the two moving blocks to the outer surface of the bolt, so that the two clamping blocks are respectively inserted into the inner sides of the two clamping grooves in a sliding manner, the moving blocks and the clamping blocks are pushed by the elasticity of the two springs, the main nut is fixed on the outer surface of the bolt by the larger friction force between the clamping blocks and the clamping grooves, and the loose main nut is fixed by the locking nut, so that the nut has the backstop capability, and when working in a severe environment and being vibrated for a long time, the main nut is prevented from loosening and falling off from the outer surface of the bolt, and safety accidents and economic losses are prevented. Drawings In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to those skilled in the art that other drawings can be obtained according to these drawings without inventive effort; FIG. 1 is a schematic view of the overall structure of the present utility model; FIG. 2 is a schematic view of the structure of the retaining nut and lock