Retaining 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, the retaining assembly comprises a main nut, the main nut is arranged on the outer surface of the bolt in a threaded mode, the main nut is in an octagonal block shape, and an annular block-shaped locking nut is arranged on the lower surface of the main nut in a rotating mode. The two movable blocks are pushed by rotating the two pushing rods, so that the two clamping blocks are inserted into the inner sides of the two clamping grooves in a sliding mode respectively, the movable blocks and the clamping blocks are pushed through the elastic force of the two springs, and therefore the clamping blocks can be conveniently and rapidly inserted into the two clamping grooves. The main nut is fixed to the outer surface of the bolt through large friction force between the clamping block and the clamping groove, and the loosened main nut is fixed through the locking nut, so that the nut has the retaining capacity, and the main nut is prevented from loosening and falling off from the outer surface of the bolt when the nut works in a severe environment and is vibrated and used for a long time.

Description

Technical Field

[0001] This utility model relates to the field of nut technology, specifically a backstop nut assembly. Background Technology

[0002] A nut is a fastener that is screwed onto a bolt or threaded rod to secure a fastener. It is an essential component in all manufacturing machinery. Depending on the material, nuts are classified into several types, such as carbon steel, stainless steel, and non-ferrous metals.

[0003] In the prior art, such as the combined nut assembly proposed in patent application number "CN202420661683.4", a nut body is provided. The nut body is fitted with a disassembly unit that is connected to and facilitates disassembly. The outer peripheral wall of one end of the nut body is provided with a radially outward protruding convex ring portion for limiting the position of the disassembly unit. The disassembly unit is composed of an outer ring, an inner ring and a plurality of rolling elements. The inner ring is fitted onto and connected to the nut body. A plurality of assembly holes are provided on one end face of the inner ring, which are arranged along its circumference and allow the corresponding rolling elements to be inserted for installation.

[0004] However, existing technology has its flaws. Under harsh working conditions and long-term vibration, the nuts of existing nut assemblies are prone to self-rotation and loosening, which may lead to safety accidents and certain economic losses. Utility Model Content

[0005] The purpose of this invention is to provide a backstop nut assembly to solve the problems mentioned in the background art.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A locking nut assembly includes a bolt and a locking component, wherein the locking component includes a main nut, the main nut being threaded onto the outer surface of the bolt, and the main nut being in the shape of an octagonal block;

[0008] The lower surface of the main nut is rotatably provided with an annular block-shaped locking nut. The lower surface of the main nut has a groove, and two L-shaped block-shaped connecting blocks are fixedly installed inside the groove. The inner side of the locking nut has a sliding groove, and the lower ends of the two connecting blocks are slidably installed inside the sliding groove. The inner sides of the two connecting blocks are fitted against the outer surface of the bolt.

[0009] Preferably, the outer surface of the locking nut has two movable grooves, and a movable block is slidably disposed inside each of the two movable grooves.

[0010] Preferably, the top of each of the two movable slots is provided with a rectangular hole, and the two movable blocks slide inside the two rectangular holes respectively, and the two movable blocks slide inside the groove.

[0011] Preferably, a spring is fixedly provided on one side of each of the two movable blocks, and one end of each spring is fixedly provided inside the groove.

[0012] Preferably, a push rod is rotatably provided on one side of each of the two movable blocks, and a fixed block is fixedly provided on the inner side of each of the two movable slots, with the two push rods threadedly disposed in the middle of the two fixed blocks respectively.

[0013] Preferably, each of the two movable blocks has a locking block fixedly installed at its upper end, and the outer surface of the bolt has two slots. The two locking blocks are respectively inserted into the two slots, and the lower surface of the bolt has a hexagonal block-shaped screw head fixedly installed.

[0014] The beneficial effects of this utility model are:

[0015] This invention uses two push rods to move two moving blocks to the outer surface of the bolt, allowing two locking blocks to slide into the inner sides of two locking slots. The elastic force of two springs increases the pushing force on the moving blocks and locking blocks. The large friction between the locking blocks and the locking slots fixes the main nut to the outer surface of the bolt. The locking nut secures the loose main nut, giving it a non-removing capability. This prevents the main nut from loosening and falling off the outer surface of the bolt when working in harsh environments and subjected to long-term vibration, thus preventing safety accidents and economic losses. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0018] Figure 2 This is a schematic diagram of the structure of the anti-reverse nut and locking nut of this utility model;

[0019] Figure 3 This is a schematic diagram of the groove and connecting block structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the moving groove and moving block structure of this utility model.

[0021] The attached figures are labeled as follows:

[0022] 1. Bolt; 2. Screw head; 3. Main nut; 4. Locking nut; 5. Groove; 6. Connecting block; 7. Sliding groove; 8. Moving groove; 9. Moving block; 10. Spring; 11. Push rod; 12. Slot; 13. Locking block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] A locking nut assembly includes a bolt 1 and a locking component. The locking component includes a main nut 3, which is threaded onto the outer surface of the bolt 1 and is in the shape of an octagonal block.

[0025] The lower surface of the main nut 3 is rotatably provided with an annular block-shaped locking nut 4. The lower surface of the main nut 3 is provided with a groove 5. Two L-shaped block-shaped connecting blocks 6 are fixedly provided inside the groove 5. The inner side of the locking nut 4 is provided with a sliding groove 7. The lower ends of the two connecting blocks 6 are slidably provided inside the sliding groove 7. The inner sides of the two connecting blocks 6 are attached to the outer surface of the bolt 1.

[0026] like Figure 1 , Figure 2 and Figure 3 The main bolt 3 is threaded onto the outer surface of the bolt 1, so that the locking nut 4 is positioned on the outside of the bolt 1. When the main bolt 3 rotates, the lower ends of the two connecting blocks 6 slide inside the sliding groove 7, and the locking nut 4 is positioned on the lower surface of the main nut 3.

[0027] Two movable grooves 8 are provided on the outer surface of the locking nut 4, and movable blocks 9 are slidably arranged inside the two movable grooves 8.

[0028] like Figure 4 The two moving blocks 9 are pushed into the two moving slots 8 respectively, and the two moving blocks 9 are symmetrical.

[0029] The top of each of the two movable slots 8 is provided with a rectangular hole, and the two movable blocks 9 slide on the inner side of the two rectangular holes respectively, and the two movable blocks 9 slide inside the groove 5.

[0030] like Figure 3 and Figure 4 When the two moving blocks 9 move, the two moving blocks 9 slide inside the two rectangular holes, so that the two moving blocks 9 slide inside the groove 5.

[0031] Springs 10 are fixedly installed on one side of each of the two movable blocks 9, and one end of each spring 10 is fixedly installed inside the groove 5.

[0032] like Figure 3 and Figure 4 The spring 10 is connected between the movable block 9 and the groove. When the two movable blocks 9 move towards each other, the elasticity of the two springs 10 increases the thrust on the two movable blocks 9 respectively.

[0033] Each of the two movable blocks 9 has a push rod 11 rotatably mounted on one side, and each of the two movable slots 8 has a fixed block fixedly mounted on the inner side. The two push rods 11 are threadedly mounted in the middle of the two fixed blocks.

[0034] like Figure 4 By rotating the push rod 11, the push rod 11 moves within the internal thread of the fixed block, and the push block 11 pushes the moving block 9 to slide inside the moving groove 8.

[0035] Both movable blocks 9 are fixedly provided with locking blocks 13 at their upper ends. Two slots 12 are opened on the outer surface of the bolt 1. The two locking blocks 13 are respectively inserted into the two slots 12. A hexagonal block-shaped screw head 2 is fixedly provided on the lower surface of the bolt 1.

[0036] like Figure 1 and Figure 4 When the two moving blocks 9 move toward each other, the two locking blocks 13 slide into the interior of the two locking slots 12. Friction blocks are provided on the outer surfaces of the two locking blocks 13 to increase the friction between the two locking blocks 13 and the two locking slots 12.

[0037] The working principle of the anti-reverse nut assembly provided by this utility model is as follows:

[0038] By rotating the two push rods 11, the two moving blocks 9 move in opposite directions, setting the main nut 3 threaded onto the outer surface of the bolt 1, and allowing the locking nut 4 to be fitted onto the outer surface of the bolt 1. When the main nut 3 is moved to the designated position, rotating the two push rods 11 pushes the two moving blocks 9 to slide inside the two moving slots 8 respectively, so that the two moving blocks 9 are set on the outer surface of the bolt 1. The two locking blocks 13 are slidably inserted into the inner side of the two locking slots 12 respectively. Due to the large friction between the locking blocks 13 and the locking slots 12, the position of the locking nut 4 is controlled. The elastic force of the two springs 10 increases the pushing force on the two moving blocks 9 respectively. The locking nut 4 fixes the main nut 3 to the outer surface of the bolt 1, so that the locking nut 4 has the ability to prevent it from falling off the outer surface of the bolt 1 when working in harsh environments and subjected to long-term vibration, thus preventing safety accidents and economic losses.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A locking nut assembly, comprising a bolt (1) and a locking component, characterized in that, The anti-reverse assembly includes a main nut (3), which is threaded on the outer surface of the bolt (1) and is in the shape of an octagonal block. The lower surface of the main nut (3) is rotatably provided with an annular block-shaped locking nut (4). The lower surface of the main nut (3) is provided with a groove (5). Two L-shaped block-shaped connecting blocks (6) are fixedly provided inside the groove (5). The inner side of the locking nut (4) is provided with a sliding groove (7). The lower ends of the two connecting blocks (6) are slidably provided inside the sliding groove (7). The inner sides of the two connecting blocks (6) are attached to the outer surface of the bolt (1).

2. The anti-reverse nut assembly according to claim 1, characterized in that, The outer surface of the locking nut (4) has two moving grooves (8), and a moving block (9) is slidably arranged inside each of the two moving grooves (8).

3. The anti-reverse nut assembly according to claim 2, characterized in that, The top of each of the two movable slots (8) is provided with a rectangular hole, and the two movable blocks (9) slide on the inner side of the two rectangular holes respectively, and the two movable blocks (9) slide inside the groove (5).

4. The anti-reverse nut assembly according to claim 3, characterized in that, Springs (10) are fixedly provided on one side of each of the two movable blocks (9), and one end of each spring (10) is fixedly provided inside the groove (5).

5. The anti-reverse nut assembly according to claim 2, characterized in that, Each of the two movable blocks (9) is rotatably provided with a push rod (11) on one side, and each of the two movable slots (8) is fixedly provided with a fixed block on the inner side. The two push rods (11) are respectively threaded in the middle of the two fixed blocks.

6. The anti-reverse nut assembly according to claim 5, characterized in that, Both of the moving blocks (9) are fixedly provided with a locking block (13) at their upper ends. The outer surface of the bolt (1) has two slots (12). The two locking blocks (13) are respectively inserted into the two slots (12). The lower surface of the bolt (1) is fixedly provided with a hexagonal block-shaped screw head (2).

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