High-strength engineering machinery bolt

Abstract

The utility model provides a high-strength engineering machinery bolt, and belongs to the technical field of bolts. The high-strength engineering machinery bolt comprises a connecting assembly and a protection assembly, limiting grooves are formed in the two sides of a screw rod, firstly, the end of the screw rod can be protected through sliding clamping connection of a telescopic cylinder and an elastic clamping ring, the end of the screw rod is located in the telescopic cylinder, and it is avoided that threads at the end of the screw rod rust due to long-term contact with air; meanwhile, the telescopic cylinder is conveniently disassembled and assembled in a clamping connection mode, the limiting block slides into the limiting groove through the elastic force of the elastic cylinder, the connection stability between the nut and the screw can be enhanced, the nut can be prevented from being separated from the screw, the limiting block can be separated from the limiting groove by pushing the shifting block, and the operation is convenient. And the nut can be rotated, so that the end position of the screw rod can be protected, the nut can be conveniently disassembled, meanwhile, the nut and the screw rod are prevented from loosening, and therefore the practicability is improved.

Description

Technical Field

[0001] This application relates to the field of bolts, and more specifically, to a high-strength engineering machinery bolt. Background Technology

[0002] High-strength engineering machinery bolts are fasteners made of high-strength steel, capable of withstanding large preloads, and widely used in engineering fields such as bridges and mechanical equipment. The design of high-strength bolts is primarily to cope with high-pressure, high-intensity working environments. In engineering machinery, bolts are key elements connecting various components, and their performance directly affects the stability and safety of the entire structure. Therefore, using high-strength steel to manufacture bolts can significantly improve their ability to withstand external pressure, reducing the risk of deformation and breakage. Furthermore, high-strength engineering machinery bolts undergo special processing techniques and heat treatments to ensure they achieve the required mechanical properties and corrosion resistance. These processes include precise thread machining, heat treatment to enhance the strength and toughness of the material, and surface treatments to improve the bolt's corrosion resistance and wear resistance. However, existing high-strength engineering machinery bolts typically have the bolt shank exposed to air. The threads at the end of the bolt can rust due to long-term contact with air or rainwater, making it difficult to remove the nut and affecting the efficiency of nut disassembly. Secondly, long-term use can lead to loosening of the bolt, thus reducing its practicality. Utility Model Content

[0003] To overcome the above shortcomings, this application provides a high-strength engineering machinery bolt, which aims to improve the existing high-strength engineering machinery bolts. The threads at the end of the bolt will rust due to long-term contact with air or rainwater, making it difficult to remove the nut and affecting the efficiency of nut disassembly. Secondly, the bolt is prone to loosening after long-term use, thus reducing its practicality.

[0004] This application provides a high-strength engineering machinery bolt including a connecting component and a protective component.

[0005] The connecting assembly includes a bolt head and a screw rod, the screw rod being fixedly connected to the bolt head, and limit grooves provided on both sides of the screw rod. The protective assembly includes a nut, an elastic retaining ring, an elastic cylinder, a limit block, a lever block, and a telescopic cylinder. The nut is threadedly connected to the screw rod, the elastic retaining ring is disposed on one side of the nut, both elastic cylinders are disposed on one side of the elastic retaining ring, the limit block is slidably connected to the elastic cylinder, the lever block is fixedly connected to the limit block, the lever block is slidably connected to the elastic cylinder, and the telescopic cylinder is slidably engaged with the elastic retaining ring.

[0006] In one specific implementation, the elastic retaining ring includes a fixed ring, a first spring, and an arc-shaped block. Several first springs are disposed inside the fixed ring. The arc-shaped block is slidably connected to the fixed ring and fixedly connected to the first spring.

[0007] In the above implementation process, the first spring and the arc-shaped block can play a locking role.

[0008] In one specific embodiment, the elastic cylinder includes a cylinder and a second spring, the second spring being disposed inside the cylinder, the limiting block being slidably connected to the cylinder, and the limiting block being fixedly connected to the second spring.

[0009] In the above implementation process, the movement of the limiting block can be limited by the cylinder, and the second spring can provide elastic force.

[0010] In one specific implementation, a groove is provided on one side of the cylinder, and the lever is slidably connected to the groove.

[0011] In the above implementation process, a groove is provided on one side of the cylinder, which can serve as a limit.

[0012] In one specific implementation, the telescopic cylinder includes a first cylinder body, a second cylinder body, and a knob. The second cylinder body is slidably connected to the first cylinder body, and the knob is connected through to one side of the first cylinder body, with one end of the knob slidably connected to the second cylinder body.

[0013] In the above process, the second cylinder can be moved to extend the cylinder and protect screws of different lengths, while the knob can be used to fix the screws.

[0014] In one specific implementation, a plurality of grooves are provided on one side of the first cylinder, and the arc-shaped block contacts the grooves.

[0015] In the above implementation process, several grooves are provided on one side of the first cylinder. When it is necessary to disassemble the telescopic cylinder, the second cylinder is pulled to make the grooves squeeze the arc block, causing the arc block to move into the fixed ring. Therefore, the grooves and the arc block are misaligned, and the first and second cylinders can be disassembled. Conversely, the operation can be performed to install them.

[0016] In one specific implementation, sliders are provided on both sides of the second cylinder, the sliders are slidably connected to the first cylinder, and a plurality of slots are provided on both sides of the second cylinder, one end of the knob is slidably connected to the slots.

[0017] In the above implementation process, sliders are provided on both sides of the second cylinder, which can serve as a connection.

[0018] Compared with the prior art, the beneficial effects of this application are as follows: Firstly, the sliding engagement of the telescopic cylinder and the elastic retaining ring can protect the end of the screw, keeping the end of the screw inside the telescopic cylinder and preventing the screw thread from rusting due to long-term contact with air. Simultaneously, the snap-fit ​​connection facilitates the disassembly and installation of the telescopic cylinder. The elastic force of the elastic cylinder causes the limiting block to slide into the limiting groove, enhancing the connection stability between the nut and the screw and preventing the nut from detaching from the screw. Furthermore, pushing the lever can separate the limiting block from the limiting groove, allowing the nut to rotate, thus protecting the end of the screw, facilitating nut disassembly, and preventing loosening of the nut and screw, thereby improving practicality. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of a high-strength engineering machinery bolt structure provided in the embodiments of this application;

[0021] Figure 2 A schematic diagram of the elastic retaining ring structure provided for an embodiment of this application;

[0022] Figure 3 A schematic diagram of the elastic cylinder structure provided for an embodiment of this application;

[0023] Figure 4 A schematic diagram of the telescopic cylinder structure provided for an embodiment of this application.

[0024] In the diagram: 100-Connecting component; 110-Bolt head; 120-Screw; 130-Limiting groove; 200-Protective component; 210-Nut; 220-Elastic retaining ring; 221-Fixing ring; 222-First spring; 223-Arc block; 230-Elastic cylinder; 231-Cylinder; 2311-Slide groove; 232-Second spring; 240-Limiting block; 250-Pulling block; 260-Telescopic cylinder; 261-First cylinder body; 2611-Groove; 262-Second cylinder body; 2621-Slider; 2622-Groove; 263-Knob. Detailed Implementation

[0025] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] Please see Figure 1-4 This application provides a high-strength engineering machinery bolt including a connecting component 100 and a protective component 200.

[0028] Please see Figure 1 The connecting assembly 100 includes a bolt head 110 and a screw 120. The screw 120 is fixedly connected to the bolt head 110. Limiting grooves 130 are provided on both sides of the screw 120. The limiting grooves 130 can play a limiting role. There are two limiting grooves 130.

[0029] Please see Figure 1-4 The protective component 200 includes a nut 210, an elastic retaining ring 220, an elastic cylinder 230, a limiting block 240, a lever block 250, and a telescopic cylinder 260. The nut 210 is threadedly connected to the screw 120. The elastic retaining ring 220 is disposed on one side of the nut 210. Both elastic cylinders 230 are disposed on one side of the elastic retaining ring 220. The limiting block 240 is slidably connected to the elastic cylinder 230. The lever block 250 is fixedly connected to the limiting block 240 and slidably connected to the elastic cylinder 230. The telescopic cylinder 260 is slidably engaged with the elastic retaining ring 220. The elastic retaining ring 220 includes a fixed ring 221, a first spring 222, and an arc-shaped block 223. Several first springs 222 are disposed inside the fixed ring 221. The arc-shaped block 223 is slidably connected to the fixed ring 221 and fixedly connected to the first spring 222. The first spring 222 and the arc-shaped block 223 can play a engaging role.

[0030] In some specific implementations, the elastic cylinder 230 includes a cylinder 231 and a second spring 232. The second spring 232 is disposed inside the cylinder 231. A limiting block 240 is slidably connected to the cylinder 231 and fixedly connected to the second spring 232. The cylinder 231 can limit the movement of the limiting block 240, and the second spring 232 can provide elastic force. A sliding groove 2311 is provided on one side of the cylinder 231, and a lever 250 is slidably connected to the sliding groove 2311. The sliding groove 2311 can serve as a limit. The telescopic cylinder 260 includes a first cylinder 261, a second cylinder 262, and a knob 263. The second cylinder 262 is slidably connected to the first cylinder 261. The knob 263 is connected through to one side of the first cylinder 261, and one end of the knob 263 is slidably connected to the second cylinder 262. By moving the second cylinder 262, it can extend and protect the screws 120 of different lengths. The knob 263 can be used for fixing.

[0031] In some specific implementation schemes, the first cylinder 261 has several grooves 2611 on one side, and the arc block 223 contacts the grooves 2611. When the telescopic cylinder 260 needs to be disassembled, the second cylinder 262 is pulled, causing the grooves 2611 to squeeze the arc block 223, causing the arc block 223 to move into the fixing ring 221. Therefore, the grooves 2611 and the arc block 223 are misaligned, and the first cylinder 261 and the second cylinder 262 can be disassembled. Conversely, they can be installed. The second cylinder 262 has sliders 2621 on both sides, and the sliders 2621 are slidably connected to the first cylinder 261. The second cylinder 262 has several holes and slots 2622 on both sides, and one end of the knob 263 is slidably connected to the holes and slots 2622. The sliders 2621 can serve as a connection.

[0032] The working principle of this high-strength engineering machinery bolt is as follows: During use, the screw 120, in conjunction with the nut 210, provides a fastening effect. By pulling the second cylinder 262, the groove 2611 presses against the arc-shaped block 223, causing the arc-shaped block 223 to move inwards towards the fixing ring 221. This misalignment between the groove 2611 and the arc-shaped block 223 allows for the disassembly of the first cylinder 261 and the second cylinder 262. Conversely, this allows for their installation. This ensures that the end of the screw 120 is inside the telescopic cylinder 260, preventing the threaded end of the screw 120 from rusting due to prolonged contact with air. Moving the second cylinder 262... 2 can serve as an extension, protecting screws 120 of different lengths. The elastic force of the elastic cylinder 230 causes the limiting block 240 to slide into the limiting groove 130, which can strengthen the connection stability between the nut 210 and the screw 120 and prevent the nut 210 from detaching from the screw 120. By pushing the lever 250, the limiting block 240 can be separated from the limiting groove 130, allowing the nut 210 to rotate. This can protect the end of the screw 120, facilitate the disassembly of the nut 210, and prevent the nut 210 from loosening with the screw 120, thereby improving practicality.

[0033] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A high strength engineering machine bolt characterized in that, The utility model relates to a kind of connecting assembly and protective assembly, including Connecting assembly (100), the connecting assembly (100) includes bolt head (110) and screw rod (120), the screw rod (120) is fixedly connected with the bolt head (110), and limit slot (130) is arranged on both sides of the screw rod (120); Protective assembly (200), the protective assembly (200) includes nut (210), elastic collar (220), elastic cylinder (230), limit block (240), dial block (250) and telescopic cylinder (260), the nut (210) is threadedly connected with the screw rod (120), the elastic collar (220) is arranged on one side of the nut (210), two the elastic cylinder (230) is arranged on one side of the elastic collar (220), the limit block (240) is slidably connected with the elastic cylinder (230), the dial block (250) is fixedly connected with the limit block (240), the dial block (250) is slidably connected with the elastic cylinder (230), and the telescopic cylinder (260) is slidably connected with the elastic collar (220).

2. A high strength engineering machinery bolt according to claim 1 wherein, The elastic collar (220) includes fixed ring (221), first spring (222) and arc surface block (223), the first spring (222) is arranged with several in the fixed ring (221), the arc surface block (223) is slidably connected with the fixed ring (221), and the arc surface block (223) is fixedly connected with the first spring (222).

3. A high strength engineering machinery bolt according to claim 1 wherein, The elastic cylinder (230) includes cylinder (231) and second spring (232), the second spring (232) is arranged in the cylinder (231), the limit block (240) is slidably connected with the cylinder (231), and the limit block (240) is fixedly connected with the second spring (232).

4. A high strength engineering machinery bolt according to claim 3, wherein One side of the cylinder (231) is provided with a sliding groove (2311), and the dial block (250) is slidably connected with the sliding groove (2311).

5. A high strength engineering machinery bolt according to claim 2, wherein The telescopic cylinder (260) includes first cylinder body (261), second cylinder body (262) and knob (263), the second cylinder body (262) is slidably connected with the first cylinder body (261), the knob (263) is connected on one side of the first cylinder body (261), and one end of the knob (263) is slidably connected with the second cylinder body (262).

6. A high strength engineering machinery bolt according to claim 5 wherein, One side of the first cylinder body (261) is provided with a plurality of recesses (2611), and the arc surface block (223) is in contact with the recess (2611).

7. A high strength engineering machinery bolt according to claim 6 wherein, The second cylinder body (262) is provided with sliding block (2621) on both sides, the sliding block (2621) is slidably connected with the first cylinder body (261), the second cylinder body (262) is provided with a plurality of hole grooves (2622) on both sides, and one end of the knob (263) is slidably connected with the hole groove (2622).

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