Device for preventing steel pin of steel beam from falling off during first-aid repair

By combining anti-detachment and buffer mechanisms, the problem of steel pins loosening and detaching under complex working conditions is solved, ensuring the stability and safety of the steel beam and achieving a stable connection of the steel pins and effective management of vibration energy.

CN223563186UActive Publication Date: 2025-11-18SHANDONG CHINA RAILWAY BRIDGE ENG CO LTD +1
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Patent Information

Application Number
CN202520105215.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-16
Publication Date
2025-11-18
Estimated Expiration
2035-01-16

AI Technical Summary

Technical Problem

Under complex working conditions, steel pins are prone to loosening or falling out, leading to instability in the steel beam structure and threatening safety.

Method used

The system employs an anti-detachment mechanism and a buffer mechanism. The anti-detachment mechanism, through a combination of screw, folding rod and spring, ensures a secure connection of the steel pin. The buffer mechanism, through a combination of damper and spring, absorbs and releases vibration energy to prevent the steel pin from falling off.

Benefits of technology

It effectively prevents steel pins from detaching during vibration, ensuring the stability and reliable operation of the steel beam structure and reducing the risk of detachment due to shaking.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an anti-falling device for a steel pin of a first-aid repair steel beam, and relates to the technical field of steel pin falling prevention. The device comprises a first steel beam, and an anti-falling mechanism and two buffering mechanisms are arranged on the first steel beam. By arranging the anti-falling mechanism, in the actual use link, the steel pin can be sleeved on the first steel beam and the second steel beam, after the sleeving operation is completed, the screw rod is inserted into the steel pin, and in the insertion process of the screw rod, the two folding rods arranged at the top of the steel pin can be separated from each other under the extrusion action of the limiting holes, so that the steel pin and the screw rod can be folded. When the two folding rods penetrate through the screw rod, the two folding rods retract inwards into the first mounting grooves in the screw rod, so that interference to insertion of the screw rod is avoided, meanwhile, during retraction of the two folding rods, the two first springs in the two folding rods can be compressed, energy is accumulated, necessary assistance is provided for subsequent reset operation, and after the screw rod penetrates through, the two folding rods on the screw rod can rotate around the axis of the screw rod. And the spring I can be unfolded outwards under the thrust action of the spring I.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to steel pin anti -drop technical field, especially relate to a kind of steel beam steel pin anti -drop device for repair. BACKGROUND

[0002] A kind of steel beam steel pin anti -drop device is used to guarantee the key components of steel pin stable connection after steel beam repair, when steel beam is damaged and needs emergency repair, steel pin plays the role of connecting key component, but in complex actual working condition, such as influenced by mechanical equipment vibration, accidental impact, strong wind load etc., steel pin is prone to looseness even drop out, endanger structure safety, and this anti -drop device is cleverly designed, uses, such as elastic snap ring, locknut, split pin etc., from mechanical blocking, increase friction, strengthen fastening and other aspects, ensure that steel pin is firmly fixed in steel beam connecting part, maintain the stability of steel beam structure, effectively avoid a series of security risks caused by steel pin displacement, escort for long-term, reliable operation of steel beam after repair.

[0003] After steel beam is repaired with steel pin, if steel pin is in complex working condition, like influenced by strong vibration of mechanical equipment operation, accidental impact, or outdoor strong wind load, stability will be greatly challenged, these external forces continue to interfere, steel pin is prone to looseness, once so, the fastening of steel pin and steel beam connection is suddenly reduced, cannot effectively transmit force, will possibly drop out of steel beam, this will make steel beam after repair instantaneously unstable, locally deformed, make steel beam system stress imbalance, seriously threaten structure safety, even endanger surrounding personnel and facilities. INVENTION CONTENTS

[0004] The utility model aims at providing a kind of steel beam steel pin anti -drop device for repair, by being provided with anti -drop mechanism, the technical problem mentioned in background art is solved.

[0005] To solve the above technical problems, the utility model is realized by the following technical schemes:

[0006] The utility model is a kind of steel beam steel pin anti -drop device for repair, including steel beam one, the steel beam one is provided with anti -drop mechanism and two buffer mechanisms;

[0007] The anti -drop mechanism includes the steel beam two being arranged on the steel beam one, the steel beam one and the steel beam two are all slidably sleeved with a plurality of steel pins, the end close to the steel beam two of a plurality of steel pins is slidably connected with screw rod, the outer wall of a plurality of screw rods is all connected with hand-operated turntable by screwing, a plurality of hand-operated turntables are all adapted to steel pin, the outer wall of a plurality of screw rods is all provided with installation groove one, the inner wall of a plurality of installation groove one is all hinged with two folding rods, the side of a plurality of folding rods mutually close is all fixedly connected with spring one.

[0008] Furthermore, the buffer mechanism includes mounting grooves 2, each opened on the top of steel beam 1 and steel beam 2. The inner walls of the mounting grooves 2 are slidably connected to two rectangular frames. The inner walls of the two rectangular frames are fixedly connected to sliding rods 1, and the outer walls of the two sliding rods 1 are slidably connected to two buffer rods.

[0009] Furthermore, two springs are wound around the outer walls of both slide rods, one end of each spring is fixedly connected to two rectangular frames, and the other end of each spring is fixedly connected to several buffer rods.

[0010] Furthermore, each of the two rectangular frames is fixedly connected to a sliding frame on one side that is close to the other, and each of the two sliding frames is slidably connected to two sliding rods.

[0011] Furthermore, two pressing blocks are fixedly connected to one end of each of the slide rods away from the two slide frames, and each of the pressing blocks is in contact with a number of buffer rods.

[0012] Furthermore, each of the several sliding rods has two rectangular sliding frames fixedly connected to one end of each other, and rectangular blocks are slidably connected to the inner walls of the two rectangular sliding frames. A damper is fixedly connected to one side of the two rectangular blocks that are close to each other.

[0013] Furthermore, the outer wall of the damper is wound with three springs, and the ends of the three springs that are far apart from each other are fixedly connected to two rectangular blocks.

[0014] This utility model has the following beneficial effects:

[0015] 1. This utility model, by setting an anti-detachment mechanism, allows the steel pin to be fitted onto steel beam one and steel beam two during actual use. After the fitting operation is completed, the screw is then inserted onto the steel pin. During the screw insertion process, the two folding rods at the top of the steel pin will retract inward into the mounting groove on the screw under the pressure of the limiting hole, thus avoiding interference with the screw insertion. At the same time, during the retraction of the two folding rods, the two springs inside will also be compressed, thereby accumulating energy and providing necessary assistance for the subsequent reset operation. After the screw is inserted, the two rotatable folding rods on the screw will unfold outward under the pushing force of the springs. Then, by rotating the screw with the manual turntable equipped on the outer wall of the screw, the screw can be firmly fixed onto the steel pin, effectively preventing the steel pin from detaching from the steel beam and its own limiting state when subjected to vibration, ensuring the overall structural stability.

[0016] 2, the utility model discloses a buffering mechanism is set, when steel beam one and steel beam two complete fixed, can place two buffering mechanisms respectively in the installation slot no. 2 above them, then, the structure of two rectangular blocks, damper and spring three constitutes is inserted into two buffering mechanisms, once steel beam one and steel beam two are subjected to vibration, damper and spring three will pass through two rectangular slide frame and slide bar no. 2 and conduct vibration energy to the extruding block in two buffering mechanisms, under the action of external force, two extruding blocks will displace outward, and extrude the buffer bar on the outer wall of slide bar no. 1, make the buffer bar can expand outward, and then compress spring no. 2 on the outer wall of slide bar no. 1, through this setting, can realize the step -by -step release of vibration energy, to guarantee the structural stability of steel beam one and steel beam two, maximum limit reduces the risk of steel pin drop due to shaking, ensures the reliable operation of overall assembly.

[0017] Of course, implementing any product of the utility model does not necessarily need to achieve all the advantages described above at the same time. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0019] Figure 1 It is the overall structure schematic diagram of the utility model;

[0020] Figure 2 It is the anti -drop mechanism structure schematic diagram of the utility model;

[0021] Figure 3 It is the structure schematic diagram of the buffer bar of the utility model;

[0022] Figure 4 It is Figure 2 It is the partial enlarged schematic diagram of A;

[0023] Figure 5 It is Figure 3 It is the partial enlarged schematic diagram of B;

[0024] Figure 6 It is Figure 2 It is the partial enlarged schematic diagram of C.

[0025] In the drawings, the component list represented by each sign is as follows:

[0026] 1, steel beam one; 2, anti-off mechanism; 3, buffer mechanism; 21, steel beam two; 22, steel pin; 23, screw rod; 24, manual rotary disc; 25, installation groove one; 26, folding rod; 27, spring one; 31, installation groove two; 32, square frame; 33, sliding rod one; 34, buffer rod; 35, spring two; 36, sliding frame; 37, sliding rod two; 38, extrusion block; 39, rectangular sliding frame; 391, rectangular block; 392, damper; 393, spring three. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] Please refer to Figures 1-6 The utility model discloses a kind of repair steel beam steel pin anti-off devices, including steel beam one 1, steel beam one 1 is provided with anti-off mechanism 2 and two buffer mechanisms 3 on it;

[0029] Anti-off mechanism 2 includes the steel beam two 21 being arranged on steel beam one 1, steel beam one 1 and steel beam two 21 are slidably sleeved with a plurality of steel pins 22, the end close to steel beam two 21 of a plurality of steel pins 22 is slidably connected with screw rod 23, the outer wall of a plurality of screw rods 23 is all connected with manual rotary disc 24 in screw thread, a plurality of manual rotary discs 24 are all adapted with steel pin 22, the outer wall of a plurality of screw rods 23 is all set with installation groove one 25, the inner wall of a plurality of installation grooves one 25 is all hinged with two folding rods 26, the side close to each other of a plurality of folding rods 26 is all fixedly connected with spring one 27.

[0030] By setting the anti-off mechanism 2, in the actual use link, the steel pin 22 can be sleeved on the steel beam one 1 and the steel beam two 21, after the sleeving operation is completed, then the screw rod 23 is inserted into the steel pin 22, and in the insertion process of the screw rod 23, the two folding rods 26 provided at the top of the steel pin 22 will be shrunk inward into the mounting groove one 25 on the screw rod 23 under the extrusion of the limiting hole, so as to avoid the interference to the insertion of the screw rod 23, and at the same time, during the contraction of the two folding rods 26, the two springs one 27 inside will also be compressed, thereby accumulating energy to provide necessary power for subsequent reset operation, after the screw rod 23 penetrates, the two folding rods 26 rotatable on the screw rod 23 will be unfolded outward under the thrust of the spring one 27, then by means of the manual rotating disc 24 provided on the outer wall of the screw rod 23, the screw rod 23 can be rotated and operated, so that the screw rod 23 is stably fixed on the steel pin 22, effectively preventing the steel pin 22 from being separated from the steel beam and being limited when being affected by vibration, and ensuring the stability of the overall structure.

[0031] The buffer mechanism 3 comprises mounting grooves two 31 provided on the top of the steel beam one 1 and the steel beam two 21, the inner walls of the mounting grooves two 31 are slidably connected with two rectangular frames 32, the inner walls of the two rectangular frames 32 are fixedly connected with two slide rods one 33, the outer walls of the two slide rods one 33 are slidably connected with two buffer rods 34, the outer walls of the two slide rods one 33 are wound with two springs two 35, one end of each of the springs two 35 is fixedly connected with the two rectangular frames 32, the other end of each of the springs two 35 is fixedly connected with the buffer rods 34, one side of each of the two rectangular frames 32 close to each other is fixedly connected with a slide frame 36, the two slide frames 36 are slidably connected with two slide rods two 37, one end of each of the slide rods two 37 away from the two slide frames 36 is fixedly connected with two extrusion blocks 38, the two extrusion blocks 38 are in contact with the buffer rods 34, one end of each of the slide rods two 37 close to each other is fixedly connected with two rectangular slide frames 39, the inner walls of the two rectangular slide frames 39 are slidably connected with rectangular blocks 391, one side of the two rectangular blocks 391 close to each other is fixedly connected with dampers 392, the outer walls of the dampers 392 are wound with springs three 393, one end of each of the springs three 393 away from each other is fixedly connected with the two rectangular blocks 391.

[0032] By setting the buffer mechanism 3, when the steel beam one 1 and the steel beam two 21 complete the fixing, two buffer mechanisms can be placed in the installation slot two 31 above them respectively, then the structure composed of two rectangular blocks 391, dampers 392 and springs three 393 is inserted into the two buffer mechanisms, once the steel beam one 1 and the steel beam two 21 are shaken, the dampers 392 and the springs three 393 will conduct the vibration energy to the extrusion blocks 38 inside the two buffer mechanisms through the two rectangular sliding frames 39 and the sliding rods two 37, under the action of external force, the two extrusion blocks 38 will displace outwardly and exert extrusion force on the buffer rods 34 sleeved on the outer wall of the sliding rod one 33, so that the buffer rods 34 can expand outwardly, thereby compressing the springs two 35 on the outer wall of the sliding rod one 33, through this setting, the gradual release of vibration energy can be realized, thereby ensuring the structural stability of the steel beam one 1 and the steel beam two 21, minimizing the risk of the steel pin 22 falling off due to shaking, and ensuring the reliable operation of the overall assembly.

[0033] Through one specific application of the embodiment, in actual use, the steel pin 22 can be sleeved on the steel beam one 1 and the steel beam two 21, after the sleeving operation is completed, the screw rod 23 is inserted into the steel pin 22, and during the insertion process of the screw rod 23, the two folding rods 26 provided at the top of the steel pin 22 will shrink inwardly into the installation slot one 25 on the screw rod 23 under the extrusion action of the limiting hole, thereby avoiding interference with the insertion of the screw rod 23, at the same time, during the shrinking of the two folding rods 26, the two springs one 27 inside them will also be compressed, thereby accumulating energy and providing necessary assistance for subsequent resetting operation, after the screw rod 23 penetrates, the two folding rods 26 rotatable on the screw rod 23 will expand outwardly under the thrust action of the spring one 27, then the manual turntable 24 provided on the outer wall of the screw rod 23 is rotated, so that the screw rod 23 can be stably fixed on the steel pin 22, effectively preventing the steel pin 22 from being separated from the steel beam and being limited when it is shaken, and ensuring the overall structural stability; after the steel beam one 1 and the steel beam two 21 are fixed, two buffer mechanisms can be placed in the installation slot two 31 above them respectively, then the structure composed of two rectangular blocks 391, dampers 392 and springs three 393 is inserted into the two buffer mechanisms, once the steel beam one 1 and the steel beam two 21 are shaken, the dampers 392 and the springs three 393 will conduct the vibration energy to the extrusion blocks 38 inside the two buffer mechanisms through the two rectangular sliding frames 39 and the sliding rods two 37, under the action of external force, the two extrusion blocks 38 will displace outwardly and exert extrusion force on the buffer rods 34 sleeved on the outer wall of the sliding rod one 33, so that the buffer rods 34 can expand outwardly, thereby compressing the springs two 35 on the outer wall of the sliding rod one 33, through this setting, the gradual release of vibration energy can be realized, thereby ensuring the structural stability of the steel beam one 1 and the steel beam two 21, minimizing the risk of the steel pin 22 falling off due to shaking, and ensuring the reliable operation of the overall assembly.

[0034] In the description of the present specification, the description referring to the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0035] The preferred embodiments of the present application disclosed above are only used to help explain the present application. The preferred embodiments do not describe all the details and limit the present application to the specific embodiments described. Obviously, according to the content of the present specification, many modifications and changes can be made. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that the persons skilled in the art can well understand and utilize the present application. The present application is limited only by the entire scope and equivalents.

Claims

1. A steel pin anti-extraction device for a repair steel beam, characterized by: Including steel beam one (1), the steel beam one (1) is provided with anti-off mechanism (2) and two buffer mechanisms (3); The anti-off mechanism (2) includes the steel beam two (21) arranged on the steel beam one (1), the steel beam one (1) and the steel beam two (21) are slidably sleeved with a plurality of steel pins (22), a plurality of the steel pins (22) are slidably connected with screw rods (23) on one end close to the steel beam two (21), the outer wall of a plurality of the screw rods (23) is threadedly connected with hand-operated turntable (24), a plurality of the hand-operated turntable (24) is matched with steel pin (22), the outer wall of a plurality of the screw rods (23) is provided with installation groove one (25), the inner wall of a plurality of the installation groove one (25) is hinged with two folding rods (26), a plurality of the folding rods (26) are fixedly connected with spring one (27) on the side close to each other.

2. The device according to claim 1, wherein The buffer mechanism (3) includes installation groove two (31) that is set in the top of steel beam one (1) and steel beam two (21), the inner wall of installation groove two (31) is slidably connected with two rectangular frames (32), the inner wall of two rectangular frames (32) is fixedly connected with slide rod one (33), the outer wall of two slide rod one (33) is slidably connected with two buffer rods (34).

3. The device according to claim 2, wherein the device is characterized by: The outer wall of two slide rod one (33) is wound with two spring two (35), one end of a plurality of spring two (35) is fixedly connected with two rectangular frames (32), the other end of a plurality of spring two (35) is fixedly connected with a plurality of buffer rods (34).

4. The device according to claim 3, wherein the device is characterized by: The side close to each other of two rectangular frames (32) is fixedly connected with slide frame (36), two slide frame (36) is slidably connected with two slide rod two (37).

5. A device according to claim 4, wherein the device is a device for preventing the steel pin from being pulled out of the steel beam for repairing the steel beam, characterized in that The end away from two slide frame (36) of a plurality of slide rod two (37) is fixedly connected with two extrusion blocks (38), two extrusion blocks (38) are in contact with a plurality of buffer rods (34).

6. A device according to claim 5, wherein the device is a device for preventing the steel pin from being pulled out of the steel beam for repairing the steel beam, characterized in that The end close to each other of a plurality of slide rod two (37) is fixedly connected with two rectangular slide frames (39), the inner wall of two rectangular slide frames (39) is slidably connected with rectangular block (391), the side close to each other of two rectangular block (391) is fixedly connected with damper (392).

7. A device according to claim 6, wherein the device is a device for preventing the steel pin from being pulled out of the steel beam for repairing the steel beam, characterized in that The outer wall of damper (392) is wound with spring three (393), the end away from each other of spring three (393) is fixedly connected with two rectangular block (391).