Loading and unloading safety protection device

By installing I-beam rails and pulley assemblies on trucks, combined with the design of fall arrestors, the problem of workers falling during the loading and unloading of cigarette packs on trucks was solved, achieving a safe and stable loading and unloading process.

CN224105129UActive Publication Date: 2026-04-10PUCHENG BRANCH OF NANPING TOBACCO CO
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-26
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

When loading and unloading cigarette packs in a truck bed, workers are prone to falling due to instability, and existing technology lacks effective safety protection devices.

Method used

A loading and unloading safety protection device was designed, including an I-beam rail, a pulley assembly, and a fall arrestor. The pulley assembly allows for stable movement on the I-beam rail, and the fall arrestor locks the safety rope in case of a fall to prevent a fall.

Benefits of technology

Ensure the stability of workers when moving on trucks to prevent falls and injuries, and improve the safety of loading and unloading operations.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of protection devices, in particular to a loading and unloading safety protection device which is used in a material loading and unloading area in a matched mode when workers load and unload materials at high positions. Comprising an I-shaped steel rail, the I-shaped steel rail comprises an upper supporting plate, a lower supporting plate and a vertical plate connected between the upper supporting plate and the lower supporting plate, the upper supporting plate is fixed to a top frame of a loading and unloading workshop, and the side edge of the lower supporting plate is provided with an inclined chamfered edge; the pulley assembly comprises a pulley connecting seat, a pulley body, a locking rod, a nut and a gasket; the number of the pulley connecting seats is two, the two pulley connecting seats are mirror images of each other, the pulley connecting seats are connected with more than two pulley bodies, and each pulley body comprises a cylindrical section used for being in rolling fit with the upper portion of the lower supporting plate, a conical section used for being in rolling fit with the inverted edge of the lower supporting plate and the like. Through the structural improvement, it can be guaranteed that workers move on the truck, and the workers are prevented from falling off and being injured when loading and unloading tobacco bales.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of protective device, especially in material loading and unloading area for protecting the staff in high place loading and unloading material adapt to use loading and unloading safety protection device. BACKGROUND

[0002] When the loading and unloading worker loads and unloads the cigarette packet in the truck carriage, the worker needs to transfer the cigarette packet on the ground and the carriage, because there is a certain height difference between the carriage and the ground, when the staff carries and unloads the cigarette packet, it is easy to fall off the carriage because of unstable center of gravity, causing the problem of injury. Because the staff needs to walk back and forth in the truck carriage when carrying and unloading the cigarette packet, in order to adjust the loading position of the cigarette packet, or carry and unload the cigarette packet in different loading positions, therefore, in the prior art, for the process of loading and unloading the cigarette packet on the truck, there is lack of effective safety protection device.

[0003] Therefore, it is urgent to design a loading and unloading safety protection device, which can ensure that the staff moves on the truck and avoids falling and causing injury when loading and unloading the cigarette packet. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problem that: it is urgent to design a loading and unloading safety protection device, which can ensure that the staff moves on the truck and avoids falling and causing injury when loading and unloading the cigarette packet.

[0005] In order to solve the above technical problem, the utility model adopts the technical scheme that:

[0006] The loading and unloading safety protection device comprises:

[0007] The I-shaped steel track comprises an upper supporting plate, a lower supporting plate and a vertical plate connected between the upper supporting plate and the lower supporting plate, the upper supporting plate is fixed to the top frame of the loading and unloading room, and the side of the lower supporting plate is provided with an inclined reverse edge;

[0008] The pulley assembly comprises a pulley connecting seat, a pulley body, a locking rod, a nut and a gasket, the number of the pulley connecting seat is 2, the two pulley connecting seats are mirror images, the pulley connecting seat is connected with two or more pulley bodies, the pulley body comprises a cylindrical segment for rolling cooperation with the upper part of the lower supporting plate and a conical segment for rolling cooperation with the reverse edge of the lower supporting plate, the pulley connecting seat is provided with two connecting through holes, the middle segment of the locking rod is a cylindrical light rod, the two ends are threaded rods, the connecting place of the threaded rod and the cylindrical light rod is provided with an annular convex edge, in the assembled state, the threaded rods of the two locking rods pass through the through holes of the pulley connecting seats on the two sides respectively, and are connected to the threaded rods through the gasket and the nut, so that the annular convex edge abuts against the inner side of the pulley connecting seat;

[0009] The anti-falling device is hung on the cylindrical light pole of the locking rod through the connecting rope, and the lower part of the anti-falling device is connected with a lock hook through the safety rope.

[0010] Further, in the above-mentioned loading and unloading safety protection device structure, the connecting rope comprises an annular sleeve part, the inner diameter of the annular sleeve part is greater than the diameter of the cylindrical light pole of the locking rod, and the annular sleeve part is sleeved on the cylindrical light pole.

[0011] Further, in the above-mentioned loading and unloading safety protection device structure, the spacing between the two annular convex edges of the locking rod is 30-40 cm.

[0012] Further, in the above-mentioned loading and unloading safety protection device structure, the included angle between the inverted edge of the lower support plate and the upper surface of the lower support plate is 40-50 degrees.

[0013] Further, in the above-mentioned loading and unloading safety protection device structure, the material of the pulley body is iron, and the lower part of the upper support plate of the I-beam track is provided with a magnet layer.

[0014] The beneficial effects of the loading and unloading safety protection device are as follows: the pulley body and the I-beam track are connected through the two sections of the cylindrical section and the conical section, which can make the pulley more stably positioned on the I-beam track, ensure the stability of the pulley moving with the staff when the staff moves on the truck, and make the positioning and installation of the pulley assembly on the I-beam track more convenient through the structure that the two independent pulley connecting seats are mutually locked through the locking rod and the nut. Through the improved loading and unloading safety protection device structure, the staff can move on the truck, and the staff can be prevented from falling and being injured when loading and unloading the tobacco bales. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 FIG. 1 is a first perspective view of a loading and unloading safety protection device according to an embodiment of the present application;

[0016] Fig. 2 FIG. 2 is a second perspective view of a loading and unloading safety protection device according to an embodiment of the present application;

[0017] Fig. 3 FIG. 3 is a third perspective view of a loading and unloading safety protection device according to an embodiment of the present application;

[0018] LABEL EXPLANATION

[0019] 1, I-beam track; 11, upper support plate; 111, magnet layer; 12, lower support plate; 121, inverted edge; 13, vertical plate;

[0020] 2, pulley assembly; 21, pulley connecting seat; 22, pulley body; 221, cylindrical section; 222, tapered section; 23, locking rod; 231, cylindrical light rod; 232, threaded rod; 233, annular convex edge; 24, nut; 25, gasket;

[0021] 3, fall arrestor; 31, connecting rope; 32, safety rope; 33, locking hook. DETAILED DESCRIPTION

[0022] To illustrate the technical content of the utility model, the purposes and effects achieved, the following will be described in conjunction with the embodiments and the accompanying drawings.

[0023] Please refer to Figs. 1 to 3 The utility model relates to loading and unloading safety protection device, including:

[0024] I-beam track 1, the I-beam track 1 includes upper support plate 11, lower support plate 12 and the vertical plate 13 connected between upper support plate 11 and lower support plate 12, the upper support plate 11 is fixed to the top frame of loading and unloading station, and the side of lower support plate 12 is provided with inclined reverse edge 121;

[0025] Pulley assembly 2, pulley assembly 2 includes pulley connecting seat 21, pulley body 22, locking rod 23, nut 24 and gasket 25;The number of pulley connecting seat 21 is 2, and the two pulley connecting seats 21 are mirror images, and two or more pulley bodies 22 are connected on the pulley connecting seat 21, the pulley body 22 includes cylindrical section 221 for rolling cooperation with the upper part of lower support plate 12, and tapered section 222 for rolling cooperation with reverse edge 121 of lower support plate 12;Pulley connecting seat 21 is provided with two connecting through holes, the middle section of locking rod 23 is cylindrical light rod 231, and the two ends are threaded rods 232 respectively, the connecting place of threaded rod 232 and cylindrical light rod 231 is provided with annular convex edge 233, in the assembled state, the threaded rods 232 of two locking rods 23 pass through the through holes of two pulley connecting seats 21 respectively, are connected on threaded rod 232 through gasket 25 and nut 24, make annular convex edge 233 abut on the inner side of pulley connecting seat 21;

[0026] Fall arrestor 3, the fall arrestor 3 is hung on the cylindrical light rod 231 of locking rod 23 through connecting rope 31, and the lower part of fall arrestor 3 is connected with locking hook 33 through safety rope 32.

[0027] In the above embodiment, the I-beam track 1 is fixed on the top frame of the loading and unloading station by welding. When installing the pulley assembly 2, the threaded section at one end of the locking rod 23 is first sleeved into the connecting through hole of the pulley connecting seat 21 on the first side, and then locked by the gasket 25 and the nut 24. Then, the pulley body 22 on the first side is matched on the lower support plate 12 of the I-beam track 1, and is transversely limited by the inclined reverse edge 121. Then, the rope of the connecting rope 31 is sleeved in the cylindrical light pole 231 by knotting to form a loop (annular sleeving part), as shown in Figs. 1 to 3 The upper part of the connecting rope 31 is branched into two connecting ropes 31, which are respectively sleeved in the cylindrical light pole 231 of the locking rod 23 by the loop. The lower ends of the two connecting ropes 31 converge and are connected to the upper part of the fall arrestor 3. Then, the connecting through hole of the pulley connecting seat 21 on the second side is sleeved into the threaded section at the other end of the locking rod 23, and then locked by the gasket 25 and the nut 24, so that the pulley body 22 on the second side is matched on the lower support plate 12 of the I-beam track 1, that is, the installation is completed. It should be noted that the fall arrestor 3 involved above is a prior art device. In the structure thereof, the safety rope 32 is wound in the fall arrestor 3 and can be led out from below. The trigger locking device is involved, that is, when the speed of the safety rope 32 pulled out downward increases suddenly and exceeds a certain threshold, the locking is triggered, so that the safety rope 32 cannot be pulled out downward any more, thereby achieving the purpose of preventing falling.

[0028] In use, the staff can wear a safety belt, such as a five-point safety belt, on the body. When performing loading and unloading operations, the user leads out the safety rope 32 of the fall arrestor 3 to a suitable length and connects it to the safety belt by the lock hook 33. When the staff has a falling risk, the speed of the safety rope 32 pulled out downward increases suddenly, triggering the locking of the fall arrestor 3, thereby preventing the staff from falling.

[0029] Preferably, a plurality of I-beam tracks 1 can be arranged side by side on the top frame of the loading and unloading station, and are respectively connected to the pulley assembly 2. The simultaneous connection of multiple staff to different pulley assemblies 2 for loading and unloading operations can be achieved. Since each staff is connected to an independent I-beam track 1, the mutual movement is not easy to cause the entanglement and interference of the connecting ropes 31.

[0030] Since the pulley body 22 and the I-beam track 1 are limited and connected by the cylindrical section 221 and the conical section 222, the pulley can be more stably limited on the I-beam track 1. When the staff moves on the truck, the stability of the pulley moving with the staff is ensured. The structure of the two independent pulley connecting seats 21 locked by the locking rod 23 and the nut 24 is more convenient for the positioning and installation of the pulley assembly 2 on the I-beam track 1. By improving the structure of the loading and unloading safety protection device, the staff can move on the truck and avoid falling and being injured when loading and unloading the tobacco bales.

[0031] As a preferred embodiment, the connecting rope 31 comprises a ring-shaped sleeve joint portion, the inner diameter of the ring-shaped sleeve joint portion is greater than the diameter of the cylindrical light pole 231 of the locking rod 23, and the ring-shaped sleeve joint portion is sleeved on the cylindrical light pole 231.

[0032] In the above embodiment, when the worker moves horizontally along the extension direction of the I-beam track 1, the ring-shaped sleeve joint portion has a certain sliding distance on the cylindrical light pole 231, so as to improve the moving range of the worker.

[0033] As a preferred embodiment, the spacing between the two ring-shaped convex edges 233 of the locking rod 23 is 30-40 cm.

[0034] In the above embodiment, the spacing between the two ring-shaped convex edges 233 of the locking rod 23 is the length of the cylindrical light pole 231.

[0035] As a preferred embodiment, the angle between the inverted edge 121 of the lower support plate 12 and the upper surface of the lower support plate 12 is 40-50 degrees.

[0036] As a preferred embodiment, the material of the pulley body 22 is iron, and the lower part of the upper support plate 11 of the I-beam track 1 is provided with a magnet layer 111.

[0037] In the above embodiment, the iron pulley body 22 can be attracted by the magnet layer 111, so as to reduce the force of the pulley body 22 on the I-beam lower support plate 12, so that when the worker moves on the truck, the pulley body 22 can be driven to smoothly slide horizontally on the I-beam track 1.

[0038] The above is only an embodiment of the present application, and does not limit the patent range of the present application, and any equivalent transformation or direct or indirect application in the related technical field is also included in the patent protection range of the present application.

Claims

1. A safety shield for attachment and detachment, characterized in that The utility model relates to a kind of I-beam rail and its assembly method, including: I-beam rail, the I-beam rail includes upper support plate, lower support plate, and vertical plate connected between upper support plate and lower support plate, the upper support plate is fixed to the top frame of car shed, and the side of lower support plate is provided with inclined reverse edge; Pulley assembly, pulley assembly includes pulley connecting seat, pulley body, locking rod, nut and gasket;The number of pulley connecting seat is 2, and 2 pulley connecting seats are mirror image, and more than two pulley bodies are connected on pulley connecting seat, and the pulley body includes cylindrical section for rolling cooperation with the upper portion of lower support plate, and taper section for rolling cooperation with the reverse edge of lower support plate;Pulley connecting seat is equipped with two connecting through holes, and the middle section of locking rod is cylindrical light pole, and two ends are threaded rod respectively, and the connecting place of threaded rod and cylindrical light pole is equipped with annular convex edge, in assembled state, the threaded rod of two locking rods respectively passes through the through hole of pulley connecting seat on two sides, and is connected to threaded rod by gasket and nut, so that annular convex edge is abutted to the inside of pulley connecting seat; The safety device is that the safety device is hung in the cylindrical light pole of locking rod by connecting rope, and the lower portion of safety device is connected with lock catch hook by safety rope.

2. The handling safety shield of claim 1, wherein, The connecting rope includes annular sleeve part, the inner diameter of annular sleeve part is greater than the diameter of cylindrical light pole of locking rod, and annular sleeve part is sleeved on cylindrical light pole.

3. The safety shield device of claim 1, wherein The spacing between the two annular convex edges of locking rod is 30-40cm.

4. The safety shield device of claim 1, wherein The angle between the reverse edge of lower support plate and the upper surface of lower support plate is 40-50 degrees.

5. The safety shield device of claim 1, wherein The material of pulley body is iron, and the lower portion of upper support plate of I-beam rail is provided with magnet layer.