Anti-loosening bolt with locking structure

By designing a locking structure and lubrication system on the bolts, the problems of bolt loosening and corrosion were solved, achieving stable locking and protection.

CN223498391UActive Publication Date: 2025-10-31ZHUORENG PRECISION MFG (JIANGSU) CO LTD

Patent Information

Application Number
CN202423293464.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-10-31
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

The existing bolt locking structure is unstable, prone to loosening, difficult to lubricate, and susceptible to corrosion. The exposed bolts are also prone to damage.

Method used

An anti-loosening bolt with a locking structure was designed, including a threaded rod, a limiting rod, a protective sleeve, an oil reservoir, and a lubrication structure. Locking is achieved through magnetic connection and a lifting structure, and combined with automatic supply of lubricating oil, it prevents loosening and corrosion.

Benefits of technology

It achieves stable bolt tightening, prevents loosening and corrosion, protects the screw from damage, and improves reliability and lifespan.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223498391U_ABST
    Figure CN223498391U_ABST
Patent Text Reader

Abstract

The utility model discloses an anti-loosening bolt with a locking structure. The anti-loosening bolt comprises a screw rod, the upper end of the screw rod is integrally connected with a connecting table playing a role in screwing, and the outer end of the screw rod is connected with a protective sleeve in a nested mode. A lubricating structure and a locking structure are arranged on the upper side and the lower side of the connecting table correspondingly, the lubricating structure comprises an oil storage cavity, a sealing plug, a connecting hole, a connecting cavity, a sponge column and an oil outlet hole, the locking structure comprises a threaded rod, a connecting strip, a limiting rod, a connecting lug and a connecting rod, and the oil storage cavity is formed in the connecting table; a sealing plug is arranged at the right upper end of the connecting table; and magnetic blocks are embedded and connected to the upper end of the protective sleeve in a bilateral symmetry mode, iron blocks are magnetically connected to the upper ends of the magnetic blocks, and the iron blocks are embedded and connected to the bottom end of the connecting table in a bilateral symmetry mode. According to the anti-loosening bolt with the locking structure, the locking structure is arranged, loosening is prevented, lubrication is facilitated, the bolt is prevented from being corroded, and meanwhile the screw rod is conveniently protected.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of bolt technology, specifically to an anti-loosening bolt with a locking structure. Background Technology

[0002] Bolts are mechanical parts, cylindrical threaded fasteners that are fitted with nuts. They consist of two parts: a head and a threaded cylinder. They are used to fasten two parts with through holes.

[0003] However, a utility model patent with authorization announcement number CN206458698U discloses an anti-loosening bolt, including a nut, a screw, threads, a mounting groove, a fixing bracket, a toothed portion, and a spring. The screw is fixedly mounted on one side of the nut, and the outer surface of the screw has threads. The mounting groove is formed on the side where the nut connects to the screw, and the mounting groove surrounds the connection between the nut and the screw. A fixing bracket is slidably mounted in the mounting groove. The side of the fixing bracket away from the nut has a toothed portion, and a spring connects the side of the fixing bracket near the nut to the bottom of the mounting groove. Compared with the prior art, this invention can effectively prevent the bolt from loosening, improve the reliability of bolt use, has a simple structure, is easy to use, and is easy to promote and apply.

[0004] The existing technical solutions described above have the following drawbacks: the bolts are locked using components such as springs and toothed parts, but the locking structure is unstable and prone to loosening. Moreover, the bolts are easily wetted by rainwater after prolonged use, which can cause them to rust. In addition, when not in use, the screw is directly exposed to the outside environment, which can easily damage the threaded structure of the screw, resulting in a waste of resources. Therefore, we propose an anti-loosening bolt with a locking structure to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide an anti-loosening bolt with a locking structure to solve the problems mentioned in the background art, such as the unstable locking structure of existing bolts, easy loosening, inconvenient lubrication, easy corrosion of bolts, and inconvenience in protecting the screw.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an anti-loosening bolt with a locking structure, comprising: a screw rod, an upper end of the screw rod integrally connected to a connecting platform for tightening, and an outer end of the screw rod nested with a protective sleeve;

[0007] Also includes:

[0008] The upper and lower sides of the connecting platform are respectively provided with a lubrication structure and a locking structure. The lubrication structure includes an oil storage cavity, a sealing plug, a connecting hole, a connecting cavity, a sponge column, and an oil outlet hole. The locking structure includes a threaded rod, a connecting strip, a limiting rod, a connecting lug, and a connecting rod.

[0009] The upper end of the protective sleeve is symmetrically inlaid with magnetic blocks, and the upper end of the magnetic blocks is magnetically connected to iron blocks, which are symmetrically inlaid with the bottom end of the connecting platform.

[0010] Preferably, the screw includes a base layer, a urushiol resin paint layer, and an electroplated nickel film layer, wherein the outer wall of the base layer is coated with a urushiol resin paint layer, and the outer end of the urushiol resin paint layer is fixedly connected to an electroplated nickel film layer, wherein the lengths of the base layer, the urushiol resin paint layer, and the electroplated nickel film layer are all equal.

[0011] Preferably, the connecting platform has an oil storage cavity inside, and a sealing plug is provided at the upper right end of the connecting platform, wherein a connecting hole is provided at the bottom end of the connecting platform.

[0012] Preferably, the screw has a connecting cavity inside, and a sponge column is nested inside the connecting cavity. At the same time, oil outlet holes are equally spaced on the left and right walls of the screw, and the oil outlet holes have an inclined structure.

[0013] Preferably, the oil storage chamber is connected to the oil outlet through a connecting hole and the connecting chamber.

[0014] Preferably, the upper rear end of the connecting platform is rotatably connected to a threaded rod, and the rear end of the connecting strip is threadedly connected to the threaded rod. The front end of the connecting strip is connected through a connecting rod, and the connecting rod is fixedly connected to the upper front end of the connecting platform.

[0015] Preferably, the lower end of the connecting strip is symmetrically and fixedly connected to a limiting rod, and the lower end of the limiting rod is nested within the hollow structure of the connecting ear, and the connecting ear is symmetrically and fixedly connected to the outer wall of the connecting platform.

[0016] Preferably, the limiting rod forms a lifting structure with the connecting lug via a threaded rod and a connecting rod.

[0017] Compared with the prior art, the beneficial effects of this utility model are: the anti-loosening bolt with locking structure has a locking structure to prevent loosening, and is also easy to lubricate, prevent bolt corrosion, and facilitate the protection of the screw.

[0018] 1. It is equipped with a threaded rod and a limiting rod. The limiting rod, through the structural design of the threaded rod, connecting rod and connecting lug, allows the connecting bar to descend via the connecting rod when the threaded rod rotates.

[0019] The limiting rods, which are symmetrically arranged at the front and back, are nested inside the workpiece, thus providing a locking structure to prevent loosening;

[0020] 2. It is equipped with an oil storage chamber and an oil outlet. The oil storage chamber is connected to the oil outlet through a connecting hole and a connecting cavity, so that the lubricating oil inside the oil storage chamber can wet the sponge column through the connecting hole.

[0021] The lubricating oil on the sponge column drips onto the outer wall of the screw through the equally spaced oil outlet holes, which facilitates lubrication and prevents bolt corrosion.

[0022] 3. It is equipped with a protective sleeve and a magnetic block. The upper end of the magnetic block is magnetically connected to an iron block. After the protective sleeve is nested and connected to the screw, the position of the protective sleeve is limited by the magnetic block and the iron block, thereby facilitating the protection of the screw. Attached Figure Description

[0023] Figure 1 This is a frontal cross-sectional view of the present invention.

[0024] Figure 2 This is a schematic cross-sectional view of the connection between the connecting strip and the connecting rod of this utility model on the right side.

[0025] Figure 3 This is a schematic diagram of the screw structure of this utility model;

[0026] Figure 4 This is a schematic diagram of the overall structure of the protective sleeve and magnetic block connection of this utility model;

[0027] Figure 5 This is a schematic diagram of the overall structure of the connection between the screw and the oil outlet hole of this utility model;

[0028] Figure 6 This is a schematic diagram of the limiting rod in the lowered state of this utility model.

[0029] In the diagram: 1. Screw; 101. Base layer; 102. Okranosin resin paint layer; 103. Electroplated nickel film layer; 2. Connecting platform; 3. Oil storage cavity; 4. Sealing plug; 5. Connecting hole; 6. Connecting cavity; 7. Sponge column; 8. Oil outlet hole; 9. Protective sleeve; 10. Magnetic block; 11. Iron block; 12. Threaded rod; 13. Connecting strip; 14. Limiting rod; 15. Connecting lug; 16. Connecting rod. Detailed Implementation

[0030] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figure 1-6This utility model provides a technical solution: an anti-loosening bolt with a locking structure, including a screw 1, a connecting platform 2, an oil storage cavity 3, a sealing plug 4, a connecting hole 5, a connecting cavity 6, a sponge column 7, an oil outlet hole 8, a protective sleeve 9, a magnetic block 10, an iron block 11, a threaded rod 12, a connecting strip 13, a limiting rod 14, a connecting ear 15, and a connecting rod 16.

[0032] Example 1: In existing systems, when not in use, the screw 1 is directly exposed to the outside environment, causing its threaded structure to be easily damaged, resulting in resource waste. Therefore, this example addresses this issue through the following technical solution: Figure 1 and Figure 4 Since the upper end of the protective sleeve 9 is symmetrically inlaid with magnetic blocks 10, and the upper end of the magnetic blocks 10 is magnetically connected to iron blocks 11, when not in use, the protective sleeve 9 is nested on the screw 1, so that the symmetrically arranged magnetic blocks 10 and the symmetrically arranged iron blocks 11 correspond one-to-one, so that the upper end of the magnetic blocks 10 is magnetically connected to the bottom end of the iron blocks 11. The position of the protective sleeve 9 on the screw 1 is limited by the magnetic blocks 10 and the iron blocks 11, thereby facilitating the protection of the screw 1.

[0033] Example 2: Existing methods use springs, toothed parts, and other components to lock bolts, but the locking structure is unstable and prone to loosening. Therefore, this example uses the following technical solution: Figure 1 , Figure 2 and Figure 6 Since the locking structure includes a threaded rod 12, a connecting bar 13, a limiting rod 14, a connecting ear 15, and a connecting rod 16, the rear end of the connecting bar 13 is threadedly connected to the threaded rod 12, the front end of the connecting bar 13 is connected through the connecting rod 16, and the lower end of the connecting bar 13 is symmetrically fixedly connected to the limiting rod 14. The limiting rod 14 forms a lifting structure with the connecting ear 15 through the threaded rod 12 and the connecting rod 16. Therefore, when in use, the protective sleeve 9 is detached from the screw 1, the screw 1 is threadedly connected to the workpiece, the bottom end of the connecting platform 2 is attached to the upper end of the workpiece, the threaded rod 12 is rotated to make the front end of the connecting bar 13 slide down on the connecting rod 16, and the rear end of the connecting bar 13 moves down on the threaded rod 12 until the symmetrically arranged limiting rod 14 slides down in the corresponding connecting ear 15 until the lower end of the symmetrically arranged limiting rod 14 is nested and connected to the workpiece. The position of the connecting platform 2 is limited by the threaded rod 12 and the limiting rod 14, thus providing a locking structure to prevent loosening.

[0034] Example 3: Existing bolts are prone to rusting after prolonged use due to rain. Therefore, this example addresses this issue by implementing the following technical solution: Figure 1 , Figure 3 and Figure 5Because the lubrication structure includes an oil storage chamber 3, a sealing plug 4, a connecting hole 5, a connecting cavity 6, a sponge column 7, and an oil outlet 8, the base layer 101, the urushiol resin paint layer 102, and the electroplated nickel film layer 103 are all of equal length. The connecting cavity 6 is nested with a sponge column 7. Oil outlets 8 are equally spaced on the left and right walls of the screw 1, and the oil outlets 8 are inclined. The oil storage chamber 3 is connected to the oil outlet 8 through the connecting hole 5 and the connecting cavity 6. Therefore, lubricating oil is added to the interior of the oil storage chamber 3 through the inlet at the upper right end of the connecting platform 2. The sealing plug 4 is engaged in the inlet. The lubricating oil in the oil storage chamber 3 enters the interior of the connecting chamber 6 through the connecting hole 5, allowing the lubricating oil to wet the sponge column 7. The lubricating oil contained on the sponge column 7 enters the oil outlet holes 8, which are set at equal intervals. The lubricating oil lubricates the outer wall of the screw 1 through the oil outlet holes 8. The urushiol resin paint layer 102 and the electroplated nickel film layer 103 protect the base layer 101, so that the screw 1 will not easily rust, thus facilitating lubrication and preventing bolt corrosion. All the electrical components mentioned above are existing technologies and will not be described in detail here.

[0035] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A locking bolt with a locking structure, comprising: The upper end of the screw (1) is integrally connected to a connecting platform (2) that serves to tighten, and the outer end of the screw (1) is nested with a protective sleeve (9). Its characteristic is that it further includes: The upper and lower sides of the connecting platform (2) are respectively provided with a lubrication structure and a locking structure. The lubrication structure includes an oil storage cavity (3), a sealing plug (4), a connecting hole (5), a connecting cavity (6), a sponge column (7), and an oil outlet (8). The locking structure includes a threaded rod (12), a connecting strip (13), a limiting rod (14), a connecting ear (15), and a connecting rod (16). The upper end of the protective sleeve (9) is symmetrically inlaid with magnetic blocks (10), and the upper end of the magnetic blocks (10) is magnetically connected with iron blocks (11), and the iron blocks (11) are symmetrically inlaid at the bottom end of the connecting platform (2).

2. The anti-loosening bolt with a locking structure according to claim 1, characterized in that: The screw (1) includes a base layer (101), a urushiol resin paint layer (102), and an electroplated nickel film layer (103). The outer wall of the base layer (101) is coated with the urushiol resin paint layer (102), and the outer end of the urushiol resin paint layer (102) is fixedly connected to the electroplated nickel film layer (103). The lengths of the base layer (101), the urushiol resin paint layer (102), and the electroplated nickel film layer (103) are all equal.

3. The anti-loosening bolt with a locking structure according to claim 1, characterized in that: The connecting platform (2) has an oil storage chamber (3) inside, and a sealing plug (4) is provided at the upper right end of the connecting platform (2), and a connecting hole (5) is provided at the bottom end of the connecting platform (2).

4. The anti-loosening bolt with a locking structure according to claim 1, characterized in that: The screw (1) has a connecting cavity (6) inside, and a sponge column (7) is nested inside the connecting cavity (6). At the same time, oil outlet holes (8) are equally spaced on the left and right walls of the screw (1), and the oil outlet holes (8) have an inclined structure.

5. A locking bolt with a locking structure according to claim 3, characterized in that: The oil storage chamber (3) is connected to the oil outlet (8) through the connecting hole (5) and the connecting cavity (6).

6. The anti-loosening bolt with a locking structure according to claim 1, characterized in that: The upper rear end of the connecting platform (2) is rotatably connected to a threaded rod (12), and the rear end of the connecting strip (13) is threadedly connected to the threaded rod (12). The front end of the connecting strip (13) is connected to a connecting rod (16), and the connecting rod (16) is fixedly connected to the upper front end of the connecting platform (2).

7. A locking bolt with a locking structure according to claim 6, characterized in that: The lower end of the connecting strip (13) is symmetrically and fixedly connected to the limiting rod (14), and the lower end of the limiting rod (14) is nested in the hollow structure of the connecting ear (15), and the connecting ear (15) is symmetrically and fixedly connected to the outer wall of the connecting platform (2).

8. A locking bolt with a locking structure according to claim 7, characterized in that: The limiting rod (14) forms a lifting structure with the connecting lug (15) via the threaded rod (12) and the connecting rod (16).

Citation Information

Patent Citations

  • Locking bolt that moves

    CN206458698U

Cited By

  • Inclined output power tool apron

    CN121245032A