A kind of anti-fall buffer device for construction machinery

By designing a fall-proof buffer device for construction machinery including a buffer plate, a snap assembly and a secondary buffer assembly, the safety problem that the construction machinery workpiece may bounce again after buffering in the prior art is solved, and the stability and safety of the workpiece are improved.

CN222717346UActive Publication Date: 2025-04-04BEIJING CHIBAO CONSTRUCTION ENGINEERING CO LTD
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Patent Information

Application Number
CN202421656369.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-15
Publication Date
2025-04-04
Estimated Expiration
2034-07-15

AI Technical Summary

Technical Problem

The existing fall-proof buffer device for construction machinery rebounds after absorbing the impact, which may cause the construction machinery workpiece to bounce again, thereby increasing the risk of accidents and safety threats.

Method used

A fall-proof buffer device including a buffer plate, a snap assembly and a secondary buffer assembly is designed. The buffer plate is buffered and protected by the first guide rod, the first spring and the guide hole. The snap assembly is limited when the buffer plate rebounds by the coupling of the upper sliding surface clamp slot and the upper sliding surface clamp block to prevent the buffer plate from rebounding. The secondary buffer assembly provides further buffer protection through the coupling of the support rod, the slide groove and the spring.

Benefits of technology

Effectively prevent construction machinery workpieces from falling from buffer plates, reduce secondary damage risks, improve the stability and safety of workpieces, and reduce maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of construction machinery, and specifically relates to an anti-falling buffer device for construction machinery, comprising a base, a buffer plate is arranged on the top of the base, first guide rods are fixed on the four corners of the top of the base, guide holes are opened at the four corners of the top of the buffer plate for damping sliding with the first guide rod, a first spring is sleeved on the outer wall of the first guide rod, and the two ends of the first spring are respectively in contact with the outer walls of the base and the buffer plate, a telescopic enclosure is fixed through the guide holes between the top ends of the plurality of first guide rods, and the bottom of the telescopic enclosure is connected to the top of the buffer plate; the utility model can limit the workpiece on the buffer plate, and can also provide secondary buffering protection for the workpiece to prevent the workpiece from falling from the buffer plate, so that the workpiece is more stably held on the buffer plate; the buckle assembly is arranged, and when the buffer plate rebounds, the buffer plate can be limited to prevent the buffer plate from rebounding, so as to avoid secondary damage to the workpiece on the buffer plate.
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Description

Technical Field

[0001] The utility model belongs to the technical field of construction machinery, and specifically relates to an anti-falling buffer device for construction machinery. Background Art

[0002] Construction machinery is a general term for mechanical equipment used in engineering construction and urban and rural construction. It includes excavators, earthmoving machinery, compaction machinery, engineering lifting machinery, pile-driving machinery, road machinery, concrete machinery, concrete product machinery, steel-grade prestressed machinery, decoration machinery, aerial work machinery and other machinery. In the construction industry, especially in high-rise buildings and high-altitude operations, the safety of construction machinery is crucial. Fall prevention and buffer devices are important equipment to ensure the safety of workers and machinery.

[0003] Currently, many buffer mechanisms generally rely on elastic devices to reduce the impact force generated during a fall. However, when these elastic devices rebound after absorbing the impact, they may accidentally bounce the construction machinery workpiece again. This sudden rebound action may cause the construction machinery workpiece to fall from the buffer mechanism and cause serious secondary injuries. This not only increases the risk of accidents, but may also pose a serious threat to the safety of workers and equipment. Utility Model Content

[0004] The utility model aims to provide a fall prevention buffer device for construction machinery, which can limit the workpiece on the buffer plate and can also provide secondary buffer protection for the workpiece to prevent the workpiece from falling from the buffer plate and keep the workpiece on the buffer plate more stably; the buckle assembly is set, which can limit the buffer plate when the buffer plate rebounds, so that the buffer plate cannot rebound, thereby avoiding secondary damage to the workpiece on the buffer plate.

[0005] The technical solutions adopted in this utility are as follows:

[0006] A fall prevention buffer device for construction machinery comprises a base, a buffer plate is arranged on the top of the base, first guide rods are fixed on the four corners of the top of the base, guide holes are opened at the four corners of the top of the buffer plate for damping sliding with the first guide rod, a first spring is sleeved on the outer wall of the first guide rod, and the two ends of the first spring are respectively in contact with the outer walls of the base and the buffer plate, a telescopic enclosure is fixed through the guide holes between the top ends of the plurality of first guide rods, the bottom of the telescopic enclosure is connected to the top of the buffer plate, a buckle assembly for limiting the buffer plate is arranged in the middle of the top of the base, and a secondary buffer assembly is arranged on the top of the base and on both sides of the buckle assembly.

[0007] Furthermore, the buckle assembly includes a first plug-in slot formed on the outer wall of the top middle portion of the base, a plug-in rod slidably connected to the first plug-in slot is fixed to the bottom of the buffer plate, a plurality of vertically arranged upper sliding slots are formed on both sides of the plug-in rod, a mounting block is fixed on the top of the base and on both sides of the plug-in rod, a second plug-in slot is formed on one side of the mounting block, a plug-in block is slidably installed inside the second plug-in slot, a third spring fixed to the inner wall of the second plug-in slot is fixed to one side of the plug-in block, and an upper sliding block matching one of the upper sliding slots is fixed to one side of the plug-in block.

[0008] Furthermore, a second slide groove connected to the second plug-in groove is provided on one side of the mounting block, a push rod fixed to the plug-in block is slidably installed inside the second slide groove, a connecting rod is rotatably installed on one side of the push rod, a fixed block is provided on the top of the base, a guide groove slidably connected to the pull rod is provided on the outer wall of the fixed block, and one end of the pull rod is rotatably connected to one end of the two connecting rods.

[0009] Furthermore, the secondary buffer assembly includes two first slide grooves on the top of the base and on both sides of the plug-in rod, a first slider is installed in the internal damping sliding of the first slide groove, a support rod rotatably installed on the top of the first slider and connected to the bottom of the buffer plate, a second spring is fixed to one side of the first slider, and the other end of the second spring is fixed to the inner wall of the first slide groove.

[0010] Furthermore, brake pulleys are arranged on the four corners of the bottom of the base.

[0011] The technical effects achieved by this utility model are:

[0012] The utility model discloses a fall prevention buffer device for construction machinery, wherein a telescopic enclosure is provided, and when a workpiece falls onto the buffer plate, the buffer plate moves downward to drive the telescopic enclosure to expand, and limits the workpiece on the buffer plate to prevent the workpiece from falling from the buffer plate. The cooperation of the provided first guide rod, the first spring and the guide hole is convenient for buffering and protecting the workpiece on the buffer plate. The cooperation of the provided support rod, the first slide groove, the first slider and the second spring can further buffer and protect the workpiece on the buffer plate, so that the workpiece can be more stably maintained on the buffer plate. The provided buckle assembly can limit the buffer plate when the buffer plate rebounds through the cooperation of the upper sliding surface slot and the upper sliding surface block, so that the buffer plate cannot rebound, thereby avoiding secondary damage to the workpiece on the buffer plate, thereby making the fallen workpiece of the construction machinery well protected and reducing the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0014] Figure 2It is a side-view stereoscopic structural schematic diagram of the utility model;

[0015] Figure 3 It is a schematic diagram of the partial cutaway structure of the utility model;

[0016] Figure 4 This is a practical Figure 2 Schematic diagram of the enlarged structure of area A in the middle.

[0017] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0018] 1. Base; 2. Brake pulley; 3. Buffer plate; 4. First guide rod; 5. First spring; 6. Telescopic enclosure; 7. Support rod; 8. First slide groove; 9. First slider; 10. Second spring; 11. First plug-in slot; 12. Plug-in rod; 13. Upper slide surface slot; 14. Mounting block; 15. Second plug-in slot; 16. Third spring; 17. Plug-in block; 18. Upper slide surface block; 19. Second slide groove; 20. Push rod; 21. Connecting rod; 22. Pull rod. DETAILED DESCRIPTION

[0019] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with the embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the present invention, and does not strictly limit the scope of protection specifically requested by the present invention.

[0020] like Figure 1-2 As shown, a fall prevention buffer device for construction machinery includes a base 1, a buffer plate 3 is arranged on the top of the base 1, first guide rods 4 are fixed on the four corners of the top of the base 1, guide holes for damping sliding with the first guide rods 4 are opened through the four corners of the top of the buffer plate 3, a first spring 5 is sleeved on the outer wall of the first guide rod 4, and the two ends of the first spring 5 are respectively in contact with the outer walls of the base 1 and the buffer plate 3, a telescopic enclosure 6 is fixed through the guide holes between the top ends of the plurality of first guide rods 4, the bottom of the telescopic enclosure 6 is connected to the top of the buffer plate 3, and a buckle assembly that can limit the buffer plate 3 is arranged in the middle of the top of the base 1, which can prevent the first spring from 5 recovery, avoiding the rebound of the buffer plate 3, thereby preventing secondary damage to the construction machinery workpiece. A secondary buffer assembly is arranged on the top of the base 1 and on both sides of the buckle assembly. The structure is simple and the operation is convenient. The damping sliding of the first guide rod 4 and the guide hole is coordinated. The deformation of the first spring 5 is utilized to absorb the impact force generated by the falling of the construction machinery workpiece, so that the construction machinery workpiece falling on the buffer plate 3 can be buffered to reduce the damage to the construction machinery workpiece. In the process of the buffer plate 3 moving downward, the telescopic enclosure 6 will be driven to unfold, so as to avoid the construction machinery workpiece from falling from the buffer plate 3 and being damaged, and further protect the construction machinery workpiece. It is more practical.

[0021] like Figure 2-4As shown, the buckle assembly includes a first plug-in slot 11 formed on the outer wall of the middle part of the top of the base 1, a plug-in rod 12 slidably connected to the first plug-in slot 11 is fixed to the bottom of the buffer plate 3, and a plurality of vertically arranged upper sliding surface card slots 13 are formed on both sides of the plug-in rod 12, and a mounting block 14 is fixed on the top of the base 1 and on both sides of the plug-in rod 12, and a second plug-in slot 15 is formed on one side of the mounting block 14, and a plug-in block 17 is slidably installed inside the second plug-in slot 15, and a plug-in block 17 is fixed on one side of the plug-in block 17 to be fixed to the inner wall of the second plug-in slot 15. The third spring 16 is fixed, and an upper sliding surface block 18 that cooperates with one of the upper sliding surface slots 13 is fixed on one side of the plug-in block 17. The upper sliding surface slot 13 and the upper sliding surface block 18 are set so that the plug-in rod 12 can move downward without restriction, so that when the plug-in rod 12 moves upward, it is limited by the upper sliding surface slot 13 and the upper sliding surface block 18. The structure is simple and the operation is convenient. When the construction machinery workpiece falls on the buffer plate 3, the buffer plate 3 can be lowered. When the buffer plate 3 drops to a certain extent, the first spring 5 makes the buffer plate 3 have an upward trend. The elastic force of the third spring 16 drives the plug-in block 17 to move, and the plug-in block 17 drives the upper sliding surface block 18 to be stuck in the upper sliding surface slot 13, so as to limit the movement of the plug-in rod 12, avoid the rebound of the buffer plate 3, and cause secondary damage to the construction machinery workpiece falling on the buffer plate 3, so that the fallen construction machinery is well protected and the maintenance cost is reduced; a second slide groove 19 connected to the second plug-in slot 15 is provided on one side of the mounting block 14, and a push rod 20 fixed to the plug-in block 17 is slidably installed inside the second slide groove 19, and the push rod A connecting rod 21 is rotatably installed on one side of 20, a fixed block is arranged on the top of the base 1, and a guide groove is provided on the outer wall of the fixed block to be slidably connected with the pull rod 22. One end of the pull rod 22 is rotatably connected with one end of the two connecting rods 21. By pulling the pull rod 22 and cooperating with the upper connecting rod 21, the push rod 20 is driven to move, and the push rod 20 drives the plug-in block 17 to move. The plug-in block 17 drives the upper sliding surface block 18 to separate from the upper sliding surface slot 13, canceling the limit of the plug-in rod 12, and resetting the buffer plate 3, so that the equipment can be used normally in the future;

[0022] like Figure 1-4 As shown, the secondary buffer assembly includes two first slide grooves 8 at the top of the base 1 and on both sides of the plug-in rod 12, a first slider 9 is installed with a damping slide inside the first slide groove 8, a support rod 7 rotatably installed on the top of the first slider 9 and rotatably connected to the bottom of the buffer plate 3, a second spring 10 is fixed to one side of the first slider 9, and the other end of the second spring 10 is fixed to the inner wall of the first slide groove 8, which can perform secondary buffering on the construction machinery workpiece dropped onto the buffer plate 3, so that the workpiece can be more stably held on the buffer plate 3;

[0023] like Figure 1-2 As shown, brake pulleys 2 are provided at the four corners of the bottom of the base 1 to facilitate the overall movement of the equipment and save effort;

[0024] like Figure 1-2 As shown, a handle is fixed at one end of the pull rod 22, and the pull rod 22 can be easily pulled by the provided handle, which is more practical.

[0025] The working principle of the utility model is as follows: when in use, the staff pushes the base 1 to move, and the base 1 drives the brake pulley 2 to roll, and pushes the device under the construction machinery that needs to prevent the workpiece from falling, and stops the device. When the workpiece falls, the workpiece falls on the buffer plate 3, driving the buffer plate 3 to move down, and the buffer plate 3 cooperates with the first guide rod 4 to drive the telescopic enclosure 6 to expand, which can limit the workpiece on the buffer plate 3 to prevent the workpiece from falling from the buffer plate 3, and then cooperate with the first guide rod 4 and the guide hole to damp the sliding, and then use the first spring 5 to be compressed and deformed, and absorb part of the impact force generated by the fall of the workpiece, so as to provide buffer protection for the workpiece, and the buffer plate 3 is equipped with Closing the support rod 7 drives the first slider 9 to slide in the first slide groove 8 with damping, and the first slider 9 moves and compresses the second spring 10, and the second spring 10 deforms, further absorbing the impact force generated by the falling workpiece, further buffering and protecting the workpiece, and improving the buffering effect of the equipment on the workpiece. When the first spring 5 and the second spring 10 are compressed to a certain extent and start to rebound, at this time, the third spring 16 drives the plug-in block 17 to move, and the plug-in block 17 drives the upper sliding surface block 18 to be stuck in the upper sliding surface groove 13, and the plug-in rod 12 is limited and fixed, thereby effectively avoiding the rebound of the buffer plate 3 and preventing the workpiece from falling from the buffer plate 3 and causing secondary damage.

[0026] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A fall prevention buffer device for construction machinery, characterized in that: The utility model comprises a base (1), a buffer plate (3) is arranged on the top of the base (1), first guide rods (4) are fixed on the four corners of the top of the base (1), guide holes for damping sliding with the first guide rods (4) are opened through the four corners of the top of the buffer plate (3), a first spring (5) is sleeved on the outer wall of the first guide rod (4), and the two ends of the first spring (5) are respectively in contact with the outer walls of the base (1) and the buffer plate (3), a telescopic enclosure (6) is fixed through the guide holes between the top ends of the plurality of first guide rods (4), the bottom of the telescopic enclosure (6) is connected to the top of the buffer plate (3), a buckle assembly capable of limiting the buffer plate (3) is arranged in the middle of the top of the base (1), and a secondary buffer assembly is arranged on the top of the base (1) and on both sides of the buckle assembly.

2. The anti-fall buffer device for construction machinery according to claim 1, characterized in that: The buckle assembly comprises a first plug-in slot (11) formed on the outer wall of the middle part of the top of the base (1); a plug-in rod (12) slidably connected to the first plug-in slot (11) is fixed at the bottom of the buffer plate (3); a plurality of vertically arranged upper sliding surface slots (13) are formed on both sides of the plug-in rod (12); a mounting block (14) is fixed on the top of the base (1) and on both sides of the plug-in rod (12); a second plug-in slot (15) is formed on one side of the mounting block (14); a plug-in block (17) is slidably mounted inside the second plug-in slot (15); a third spring (16) fixed to the inner wall of the second plug-in slot (15) is fixed on one side of the plug-in block (17); and an upper sliding surface block (18) matched with one of the upper sliding surface slots (13) is fixed on one side of the plug-in block (17).

3. The anti-fall buffer device for construction machinery according to claim 2, characterized in that: A second slide groove (19) connected to the second plug-in groove (15) is provided on one side of the mounting block (14); a push rod (20) fixed to the plug-in block (17) is slidably installed inside the second slide groove (19); a connecting rod (21) is rotatably installed on one side of the push rod (20); a fixing block is provided on the top of the base (1); a guide groove slidably connected to a pull rod (22) is provided on the outer wall of the fixing block; one end of the pull rod (22) is rotatably connected to one end of two connecting rods (21).

4. The anti-fall buffer device for construction machinery according to claim 1, characterized in that: The secondary buffer assembly includes a top of a base (1) and two first slide grooves (8) are provided on both sides of the plug-in rod (12); a first slider (9) is installed inside the first slide groove (8) for damping sliding; a support rod (7) is rotatably installed on the top of the first slider (9) and is rotatably connected to the bottom of the buffer plate (3); a second spring (10) is fixed to one side of the first slider (9); and the other end of the second spring (10) is fixed to the inner wall of the first slide groove (8).

5. The anti-fall buffer device for construction machinery according to claim 1, characterized in that: Braking pulleys (2) are arranged at the four corners of the bottom of the base (1).

6. The anti-fall buffer device for construction machinery according to claim 3, characterized in that: A handle is fixed to one end of the pull rod (22).