Anti-falling self-locking bolt
By introducing locking components and limiting components into the bolts, the self-locking function of the screw is realized, solving the problems of loosening and falling off of ordinary bolts, improving the safety of the steel structure and reducing maintenance costs.
Patent Information
- Application Number
- CN202421160634.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-27
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-27
AI Technical Summary
Ordinary bolts are prone to loosening and falling off after long-term use, resulting in increased safety hazards and maintenance costs of steel structural components.
A self-locking bolt against falling off is designed, including a nut and a screw. Through the cooperation of the locking assembly and the limiting assembly, the locking hinge and spring mechanism are used to realize the self-locking function of the screw under the action of external forces to prevent loosening and falling off.
It effectively solves the problem of bolts falling back and falling off under long-term loads, improves the safety and reliability of the steel structure, reduces manual maintenance costs, and avoids the occurrence of safety hazards.
Smart Images
Figure CN222254633U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of self-locking bolts, in particular to an anti-falling off self-locking bolt. Background Art
[0002] At present, construction projects often use a large number of steel structure components instead of concrete components. This not only makes the building lighter and avoids the increase in construction foundation costs caused by overweight concrete components, but also the residual value of the building is higher than that of the concrete structure after the building reaches the end of its service life.
[0003] Ordinary bolt structures are prone to loosening and falling off after long-term use. If they are not inspected and maintained in time, it will cause safety hazards. Therefore, during the daily maintenance of steel structure components, it is necessary to check the looseness of the bolts at the joints of the steel structure, which increases the cost of daily maintenance. Utility Model Content
[0004] The utility model provides an anti-falling self-locking bolt, aiming to solve the problem that the current common bolt structure is easy to loosen and fall off after long-term use.
[0005] The utility model is implemented in this way: an anti-falling self-locking bolt comprises:
[0006] A nut and a screw, wherein the screw is assembled in a screw carrier through a threaded structure, and a locking push hole is provided at the center of the nut and the screw;
[0007] A locking assembly, which is arranged on both sides of the lock push hole and penetrates the screw to insert into the screw carrier, and the locking assembly comprises a locking rod and a lock push rod, a locking hinge is arranged between the locking rod and the lock push rod, and the locking assemblies are also connected by the locking hinge;
[0008] The locking hinges are each provided with a limit assembly. When the angle between the two sets of locking assemblies is 180° under the push of an external force, the end of the locking assembly will pass through the screw and insert into the screw carrier. The limit assembly maintains the locking assembly in a fixed state by preventing the locking hinge from deflecting.
[0009] Preferably, the locking hinge comprises a hinge shaft, and a first hinge page and a second hinge page respectively connected to two ends of the hinge shaft, and the limiting component is arranged on one side of the first hinge page and the second hinge page.
[0010] Preferably, the limiting assembly includes a spring, a clamping rod, a blocking clamp on the first hinge, and a spring base on the second hinge;
[0011] The first hinge page and the second hinge page are both provided with positioning sleeves; the clamping rod is connected to the spring base through a spring.
[0012] Preferably, a guide hole is provided on the side wall of the lock push hole, and the guide hole passes through the screw rod. The lock rod extends from the guide hole to the outside of the screw rod and is inserted into the inside of the screw rod carrier.
[0013] Preferably, a bayonet is provided on the clamping rod, and after the clamping rod passes through the positioning sleeve on the first hinge page, the blocking clamp is engaged with and enters into the bayonet of the clamping rod extending from the second hinge page to complete the limiting.
[0014] Preferably, the first hinge page and the second hinge page are both provided with fixing rods on the end surfaces away from the limiting assembly.
[0015] Compared with the prior art, the embodiments of the present application have the following beneficial effects:
[0016] The nut and the screw in the anti-falling self-locking bolt provided by the utility model effectively solve the problem that conventional bolts are easy to loosen and cannot withstand long-term dynamic loads, resulting in frequent difficulties, with the help of the locking assembly, realize the self-locking function of the bolt, improve the safety and reliability of the steel structure, prevent the bolt from falling back under long-term loads, avoid the safety hazards caused by untimely manual maintenance, and save a lot of manual inspection and maintenance cost expenditure; BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 The utility model discloses a structural schematic diagram of an anti-dropping self-locking bolt.
[0018] Figure 2 The utility model discloses a structural schematic diagram of an anti-dropping material filling lock pushing hole of an anti-dropping self-locking bolt.
[0019] Figure 3 It is a partial enlarged structural schematic diagram of position A of an anti-dropping self-locking bolt provided by the utility model.
[0020] Figure 4 The utility model provides a structural schematic diagram of an anti-dropping self-locking bolt in which the first hinge page and the second hinge page are not in a 180° state.
[0021] Figure 5 The utility model provides a structural schematic diagram of an anti-dropping self-locking bolt in which the first hinge page and the second hinge page are in a 180° state.
[0022] Description of reference numerals:
[0023] 1. Nut; 2. Screw; 3. Screw carrier; 4. Locking hole; 5. Locking rod; 6. Locking rod; 7. Locking hole; 8. Locking hinge; 9. Push rod; 10. Anti-slipping material; 11. Hinge shaft; 12. Fixing rod; 13. Spring; 14. Clamping rod; 15. Positioning sleeve; 16. Blocking; 17. Hinge; 18. Spring base. DETAILED DESCRIPTION
[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.
[0025] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.
[0026] The utility model embodiment provides a self-locking bolt that prevents falling off, such as Figure 1-Figure 5 As shown, the anti-dropping self-locking bolt comprises:
[0027] A nut 1 and a screw 2, wherein the screw 2 is assembled in a screw carrier 3 through a threaded structure, and a locking push hole 4 is provided at the center of the nut 1 and the screw 2;
[0028] A locking assembly, which is provided on both sides of the lock push hole 4 and penetrates the screw 2 and is inserted into the screw carrier 3. The locking assembly comprises a locking rod 5 and a locking push rod 6. A locking hinge 8 is provided between the locking rod 5 and the locking push rod 6, and the locking assemblies are also connected by the locking hinge 8;
[0029] The locking hinges 8 are each provided with a limit assembly. When the angle between the two sets of locking assemblies is 180° under the push of an external force, the end of the locking assembly will pass through the screw 2 and insert into the screw carrier 3. The limit assembly limits the locking assembly inside the screw carrier 3 by preventing the locking hinge from deflecting.
[0030] In the present application, the locking hinge 8 includes a hinge shaft 11, and a first hinge page 171 and a second hinge page 172 respectively connected to the two ends of the hinge shaft 11, the limiting assembly includes a spring 13, a clamping rod 14, a blocking clamp 16 on the first hinge page 171, and a spring base 18 on the second hinge page 172, and the first hinge page 171 and the second hinge page 172 are both provided with a positioning hoop 15; the clamping rod 14 is connected to the spring base 18 through the spring 13, and when the locking hinge 8 is unfolded to 180°, the clamping rod 14 will pass through several groups of positioning hoop 15 in sequence with the help of the spring 13; the locking rod 5 and the locking push rod 6 are hinged by the locking hinge 8, and the two groups of locking assemblies are hinged by setting a locking hinge 8 at the end of the locking push rod 6 away from the locking rod 5; the two groups of locking push rods 6 are also hinged by the locking hinge 8;
[0031] In the initial state, the first hinge page 171 and the second hinge page 172 are folded to form an angle, and the clamping rod 14 will abut against the first hinge page 171. When the angle between the first hinge page 171 and the second hinge page 172 becomes 180°, the clamping rod 14 will be inserted into the positioning sleeve 15 on the first hinge page 171 with the help of the spring 13. Due to the limitation of the clamping rod 14, the deflection function of the first hinge page 171 and the second hinge page 172 will be invalid, so that the locking rod 5 inserted into the screw carrier 3 cannot return again;
[0032] The nut 1 and the screw rod 2, with the help of the locking assembly, effectively solve the problem that conventional bolts are easy to loosen, cannot withstand long-term dynamic loads, and are difficult to replace frequently, thereby improving the safety and reliability of steel structures and machinery, realizing the self-locking function of the bolts, preventing the bolts from retreating and falling off under long-term loads, avoiding safety hazards caused by untimely manual maintenance, and saving a lot of manual inspection and maintenance cost expenditures;
[0033] As a preferred implementation in this embodiment, a guide hole is provided on the side wall of the lock push hole 4, and the guide hole passes through the screw rod 2. The lock rod 5 extends from the guide hole to the outside of the screw rod 2 and is inserted into the inside of the screw carrier 3;
[0034] In the present application, the screw carrier 3 is a steel structure or large mechanical equipment in the prior art. A screw hole adapted to the screw 2 is provided on the screw carrier 3, and a locking hole 7 is also provided in the screw hole of the screw carrier 3. After the screw 2 is screwed in, the anti-falling self-locking bolt will also use an auxiliary component during the assembly process. The auxiliary component includes a push rod 9 and an anti-falling material 10. The push rod 9 is responsible for pushing the connection between the two sets of lock push rods 6 during the assembly process, so that the locking component becomes a horizontal straight line to complete the purpose of limiting locking; after completing the limiting, the push rod 9 is pulled out, and the anti-falling material 10 is injected into the lock push hole 4 to further complete the sealing and locking work;
[0035] As a preferred implementation in this embodiment, a bayonet is provided on the clamping rod 14. After the clamping rod 14 passes through the positioning sleeve 15 on the first hinge page 171, the blocking clamp 16 is engaged with the bayonet of the clamping rod 14 extending from the second hinge page 172 to complete the position limiting.
[0036] In this embodiment, the first hinge page 171 and the second hinge page 172 are both provided with a fixing rod 12 at the end surface away from the limiting assembly; the first hinge page 171 and the second hinge page 172 are both connected to the corresponding locking rod 5 and locking push rod 6 through the fixing rod 12;
[0037] Here’s how this application works:
[0038] The screw rod 2 is hollow to form a lock push hole 4 and is integrally formed with the nut 1. A guide hole is preset at the middle position of the length of the screw rod 2, and a lock rod 5 is arranged in the guide hole. Before being locked, the lock rod 5 is located inside the screw rod 2. When the screw 2 is screwed into place, the locking hole 7 reserved at the corresponding screw carrier 3 is aligned with the lock rod 5. The lock push rod 6 is hinged to the lock rod 5 through a locking hinge 8, so that they can neither separate from each other nor rotate. The two lock push rods 6 are also hingedly connected through the locking hinge 8;
[0039] When the screw 2 is screwed into place, the push rod 9 is extended into the lock push hole 4 and rests against the top of the two lock push rods 6. The lock push rod 6 is forced to move downward, and the angle between the two lock push rods 6 increases. The movement of the lock push rod 6 drives the lock rod 5 to move and extend into the lock hole 7. When the angle between the two lock push rods 6 is 180°, the lock rod 5 is extended to its longest length to just fill the lock hole 7, and the two lock push rods 6 and the two lock rods 5 are aligned in a straight line. At this time, remove the push rod 9 and fill the lock push hole 4 with anti-slip material 10. The special structural structure of the locking hinge 8 itself prevents the lock push rod 6, the connection between the lock rod 5 and the connection between the two lock push rods 6 from bending in the opposite direction.
[0040] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.
[0041] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.
Claims
1. An anti-falling self-locking bolt, characterized in that: include: A nut and a screw, wherein the screw is assembled in a screw carrier through a threaded structure, and a locking push hole is provided at the center of the nut and the screw; A locking assembly, which is arranged on both sides of the lock push hole and penetrates the screw to insert into the screw carrier, and the locking assembly comprises a locking rod and a lock push rod, a locking hinge is arranged between the locking rod and the lock push rod, and the locking assemblies are also connected by the locking hinge; The locking hinges are each provided with a limit assembly. When the angle between the two sets of locking assemblies is 180° under the push of an external force, the end of the locking assembly will pass through the screw and insert into the screw carrier. The limit assembly maintains the locking assembly in a fixed state by preventing the locking hinge from deflecting.
2. The anti-dropping self-locking bolt according to claim 1, characterized in that: The locking hinge comprises a hinge shaft, and a first hinge page and a second hinge page respectively connected to two ends of the hinge shaft, and the limiting component is arranged on one side of the first hinge page and the second hinge page.
3. The anti-dropping self-locking bolt according to claim 2, characterized in that: The limit assembly includes a spring, a clamping rod, a blocking clamp on the first hinge, and a spring base on the second hinge; The first hinge page and the second hinge page are both provided with positioning sleeves; the clamping rod is connected to the spring base through a spring.
4. The anti-dropping self-locking bolt according to claim 3, characterized in that: A guide hole is provided on the side wall of the lock push hole, and the guide hole passes through the screw rod. The lock rod extends from the guide hole to the outside of the screw rod and is inserted into the inside of the screw rod carrier.
5. The anti-dropping self-locking bolt according to claim 4, characterized in that: The clamping rod is provided with a clamping opening. After the clamping rod passes through the positioning sleeve on the first hinge page, the blocking clamp is clamped into the clamping opening of the clamping rod extending from the second hinge page to complete the limiting.
6. The anti-dropping self-locking bolt according to claim 5, characterized in that: The first hinge page and the second hinge page are both provided with fixing rods on the end surfaces away from the limiting assembly.