Automatic lifting safety protection device on top of mixed loading explosive truck

By designing an automatic lifting safety protection device on the roof of the mixed explosives truck, and using an electric push rod and pressure sensor to realize the automatic opening and closing of the protective barrier, the safety hazards caused by the need for manual operation of the protective barrier in the existing technology are solved, and the safety of operators and the protection effect are improved.

CN223891079UActive Publication Date: 2026-02-10JIANGXI GUOTAI WUZHOU BLASTING ENG CO LTD
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Patent Information

Application Number
CN202520950485.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-15
Publication Date
2026-02-10
Estimated Expiration
2035-05-15

AI Technical Summary

Technical Problem

The existing protective railings on the roof of the mixed explosives truck need to be opened manually. Operators may easily overlook or forget to open them while climbing, which poses a safety hazard.

Method used

An automatic lifting safety protection device for the roof of a mixed explosives vehicle was designed, including an electric push rod and a pressure sensor for automatically opening and closing the guardrail. Combined with a manual opening component, it ensures that the guardrail automatically unfolds and resets during the climbing process.

Benefits of technology

The system enables automatic opening and closing of the guardrail, avoiding the safety hazard of forgetting to open the guardrail due to negligence, improving the safety of operators, and preventing unauthorized personnel from climbing over it.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an automatic lifting safety protection device on the roof of a mixed loading explosive truck, and relates to the technical field of protection devices. The storage device comprises a carriage plate, the top face of the carriage plate is fixedly connected with a storage pipe, the front end of the storage pipe is fixedly connected with a mounting frame, the inner side of the mounting frame is provided with a ladder stand for a user to climb, and the front face of the storage pipe is provided with a lower end locking assembly for limiting the ladder stand. The front face of the installation frame is fixedly connected with a stop rod, the top of the storage pipe is provided with an upper end locking assembly used for limiting the crawling ladder, and the left side and the right side of the top face of the carriage plate are each provided with a protection assembly. The situation that a worker forgets to open the protective guard due to negligence is avoided, the worker is safer in the car roof operation process, in addition, the ladder can be stored in a conventional state, and the situation that people without miscellaneous things climb to the car roof is avoided.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of protective devices, specifically relates to a mixed explosive truck roof automatic lifting safety protection device. BACKGROUND

[0002] With the development of industrial production, mixed explosive trucks have been widely used in the fields of mines and buildings. Mixed explosive trucks are mainly used for transporting and filling explosives on site.

[0003] The existing mixed explosive truck roof is usually equipped with protective fences to ensure the safety of the operators during high-altitude operation. However, most of these protective fences are manually opened, and the operators need to manually pull up the protective fences to the vertical state after climbing to the roof before they can operate. In the actual operation process, since the height of the mixed explosive truck roof is usually more than 2 meters, the operators need to concentrate their attention during the climbing process, which may lead to the neglect of the opening state of the protective fences. In addition, in an emergency, the operators may forget to pull up the protective fences due to their hurry, resulting in the loss of necessary safety protection during the operation and a high security risk.

[0004] Therefore, a mixed explosive truck roof automatic lifting safety protection device is proposed. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the problems mentioned in the background art, and provides a mixed explosive truck roof automatic lifting safety protection device.

[0006] The utility model adopts the following technical solutions to achieve the above-mentioned purpose:

[0007] A mixed explosive truck roof automatic lifting safety protection device comprises a truck bed plate, the top surface of the truck bed plate is fixedly connected with a storage pipe, the front end of the storage pipe is fixedly connected with a mounting bracket, the inner side of the mounting bracket is provided with a ladder for users to climb, the front surface of the storage pipe is provided with a lower end locking assembly for limiting the ladder, the front surface of the mounting bracket is fixedly connected with a blocking rod, the top of the storage pipe is provided with an upper end locking assembly for limiting the ladder, the top surface of the truck bed plate is provided with protective assemblies on the left and right sides, and the front surface of the storage pipe is fixedly installed with a manual opening assembly.

[0008] Further, the lower end locking assembly comprises a circular shaft, the circular shaft is fixedly connected with the side surface of the ladder, the side surface of the mounting bracket is provided with a sliding groove, the inner wall of the sliding groove is slidably connected with the circular shaft, the distal end of the circular shaft is threadedly connected with a gland, and the side surface close to the ladder of the gland is fixedly connected with a non-slip pad.

[0009] Further, the upper end locking assembly comprises a first electric push rod, and the first electric push rod is fixedly installed on the top surface of the storage tube, the telescopic end of the first electric push rod is fixedly connected with a plug rod, the bottom of the left side surface of the ladder is provided with a positioning hole in penetration, and the inner wall of the positioning hole is movably inserted with the end of the plug rod.

[0010] Further, the number of the lower end locking assemblies is two, and the two lower end locking assemblies are symmetrically arranged on the left and right sides of the ladder.

[0011] Further, the protection assembly comprises a bottom plate, and the bottom plate is fixedly connected with the top surface of the storage tube, the top surface of the bottom plate is hingedly connected with a protective fence, the top end of the protective fence is hingedly connected with a top plate, the surface of the bottom plate is rotatably installed with a second electric push rod, the telescopic end of the second electric push rod is hingedly connected with the protective fence, and the inner wall bottom of the mounting frame is fixedly installed with a pressure sensor.

[0012] Further, the manual opening assembly comprises a protective shell, and the protective shell is fixedly installed on the front surface of the storage tube, the inside of the protective shell is fixedly installed with a control button, the control button is electrically connected with the second electric push rod, the front surface of the protective shell is hingedly connected with a protective cover, and the surface of the protective cover is fixedly connected with a reflective strip.

[0013] The beneficial effects of the utility model are as follows:

[0014] When the user needs to reach the top of the storage tube for work, the upper end locking assembly is used for removing the limiting of the ladder, the ladder is pulled from the top of the storage tube to the vertical state, then the lower end locking assembly is used for fixing the ladder, and the staff can use the ladder to climb, when the ladder is pulled to the lowest position, the protection assembly can be automatically sensed and operated, the protection assembly will be unfolded, and the protection is formed on the left and right sides of the top of the storage tube, when the ladder is reset, the protection assembly can also be automatically reset, when the protection assembly fails to sense, the protection assembly can also be manually opened and closed through the manual opening assembly, the utility model realizes the effect that the roof protection fence is automatically opened, the staff is safer during the work on the roof, and the ladder can be stored in the conventional state, and the idle personnel can be prevented from climbing to the roof. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0016] Figure 2 It is a ladder structure enlarged view of the utility model;

[0017] Figure 3 It is an upper end locking assembly structure schematic view of the utility model;

[0018] Figure 4 is a structure schematic view of the lower end locking assembly of the utility model;

[0019] Figure 5 is a structure schematic view of the protection assembly of the utility model;

[0020] Figure 6 is a structure schematic view of the manual opening assembly of the utility model;

[0021] Reference signs: 1, carriage plate; 2, storage tube; 3, mounting frame; 4, cat ladder; 5, lower end locking assembly; 501, round shaft; 502, sliding groove; 503, gland; 504, non-slip pad; 505, blocking rod; 6, upper end locking assembly; 601, first electric push rod; 602, plug rod; 603, positioning hole; 7, protection assembly; 701, bottom plate; 702, protection fence; 703, top plate; 704, second electric push rod; 705, pressure sensor; 8, manual opening assembly; 801, protection shell; 802, protection cover; 803, control button; 804, reflective strip. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the utility model.

[0024] It should be noted that: similar signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, the terms "first", "second" and the like are only used to distinguish description, and cannot be understood as indicating or implying relative importance.

[0025] The electrical components appearing in the text are all electrically connected with the master controller and 220V mains of the outside world, and the master controller can be a conventional known device such as a computer for control.

[0026] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] like Figures 1 to 6 As shown, an automatic lifting safety protection device for the roof of a mixed explosives vehicle includes a truck body panel 1. A storage tube 2 is fixedly connected to the top surface of the truck body panel 1. A mounting frame 3 is fixedly connected to the front end of the storage tube 2. A ladder 4 for users to climb is provided on the inner side of the mounting frame 3. A lower locking component 5 for limiting the ladder 4 is provided on the front of the storage tube 2. A stop bar 505 is fixedly connected to the front of the mounting frame 3. An upper locking component 6 for limiting the ladder 4 is provided on the top of the storage tube 2. Protective components 7 are provided on both the left and right sides of the top surface of the truck body panel 1. A manual opening component 8 is fixedly installed on the front of the storage tube 2. More specifically, when a user needs to reach the top of the storage tube 2 for work, the upper locking component 6 releases the limit on the ladder 4, pulling the ladder 4 from the top of the storage tube 2 to a vertical position. Then, the lower locking component 5 is used to fix the ladder 4, allowing the worker to climb. When the ladder 4 is pulled to the lowest position, the protective component 7 will automatically sense and activate, deploying to form protection on the left and right sides of the top of the storage tube 2. When the ladder 4 resets, the protective component 7 can also automatically reset. If the protective component 7 senses a malfunction, it can also be manually opened and closed using the manual opening component 8.

[0028] The lower locking assembly 5 includes a round shaft 501, which is fixedly connected to the side of the ladder 4. A sliding groove 502 is provided through the side of the mounting bracket 3, and the inner wall of the sliding groove 502 is slidably connected to the round shaft 501. A pressure cap 503 is threaded to the end of the round shaft 501, and an anti-slip pad 504 is fixedly connected to the side of the pressure cap 503 near the ladder 4. More specifically, after the ladder 4 is pulled down to its lowest position, the pressure cap 503 is rotated to screw it along the end of the round shaft 501, thereby pushing the anti-slip pad 504 to move. Finally, the anti-slip pad 504 will tightly press against the side of the mounting bracket 3, thus limiting the ladder 4 and keeping it stable.

[0029] The upper end locking assembly 6 comprises a first electric push rod 601, and the first electric push rod 601 is fixedly installed on the top surface of the storage tube 2. The telescopic end of the first electric push rod 601 is fixedly connected with a plug rod 602. The left side bottom of the ladder 4 is provided with a positioning hole 603 penetratingly formed. The inner wall of the positioning hole 603 is movably inserted with the end of the plug rod 602. More specifically, when the ladder 4 is not used, it is pulled upward and finally parallel to the top surface of the storage tube 2. Finally, the positioning hole 603 can be aligned with the plug rod 602. Through the operation of the first electric push rod 601, the plug rod 602 can be driven to move, so that the plug rod 602 is inserted into the inner wall of the positioning hole 603. Thus, the ladder 4 can be positioned, so that the ladder 4 can be kept stable during the operation of the vehicle.

[0030] The number of the lower end locking assemblies 5 is two groups, and the two groups of lower end locking assemblies 5 are symmetrically arranged on the left and right sides of the ladder 4. It should be noted that the two groups of lower end locking assemblies 5 are symmetrically arranged, so as to stably position the ladder 4.

[0031] The protection assembly 7 comprises a bottom plate 701, and the bottom plate 701 is fixedly connected with the top surface of the storage tube 2. The top surface of the bottom plate 701 is hingedly connected with a protective fence 702. The top end of the protective fence 702 is hingedly connected with a top plate 703. The surface of the bottom plate 701 is rotatably installed with a second electric push rod 704. The telescopic end of the second electric push rod 704 is hingedly connected with the protective fence 702. The inner wall bottom of the mounting frame 3 is fixedly installed with a pressure sensor 705. More specifically, when the ladder 4 slides to the lowest position, it will press the surface of the pressure sensor 705. After the pressure sensor 705 detects the pressure, the second electric push rod 704 will automatically operate, so as to drive the protective fence 702 to rotate and finally rotate to the vertical state. Through the cooperation of the protective fence 702 and the top plate 703, the staff located on the top of the storage tube 2 can be protected. When the pressure sensor 705 cannot detect the pressure, the second electric push rod 704 will control the protective fence 702 and the top plate 703 to reset.

[0032] The manual opening assembly 8 comprises a protective shell 801, and the protective shell 801 is fixedly installed on the front surface of the storage tube 2. The inside of the protective shell 801 is fixedly installed with a control button 803, and the control button 803 is electrically connected with the second electric push rod 704. The front surface of the protective shell 801 is hingedly connected with a protective cover 802. The surface of the protective cover 802 is fixedly connected with a reflective strip 804. It should be noted that when the pressure sensor 705 cannot sense and control the operation of the second electric push rod 704, the control button 803 can be manually controlled. The control button 803 can be protected by the protective shell 801 and the protective cover 802. The reflective strip 804 is provided to reflect light and prompt the user to open the protective cover 802.

[0033] In conclusion: when the user needs to reach the top of the storage tube 2 for work, the upper end locking assembly 6 is released from the position limiting of the ladder 4, the ladder 4 is pulled from the top of the storage tube 2 to the vertical state, then the lower end locking assembly 5 is used to fix the ladder 4, and the worker can use the ladder 4 to climb, when the ladder 4 is pulled to the lowest position, the protection assembly 7 is automatically sensed and operated, the protection assembly 7 is unfolded, and the protection assembly 7 forms protection on the left and right sides of the top of the storage tube 2, when the ladder 4 is reset, the protection assembly 7 can also be automatically reset, when the protection assembly 7 fails to sense, the manual opening assembly 8 can be used to manually open and close the protection assembly 7, the utility model realizes the effect of automatically opening the roof guardrail in use, avoids forgetting to open the guardrail due to negligence, and makes the worker more safe during roof work, in addition, the ladder can be stored in the conventional state, and idle personnel are prevented from climbing to the roof.

[0034] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only the principles of the utility model. The utility model can have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope required by the utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic lifting safety protection device for the roof of a vehicle carrying mixed explosives, characterized in that, The vehicle includes a carriage panel (1), a storage tube (2) is fixedly connected to the top surface of the carriage panel (1), a mounting bracket (3) is fixedly connected to the front end of the storage tube (2), a ladder (4) for users to climb is provided on the inner side of the mounting bracket (3), a lower locking component (5) for limiting the ladder (4) is provided on the front of the storage tube (2), a stop bar (505) is fixedly connected to the front of the mounting bracket (3), an upper locking component (6) for limiting the ladder (4) is provided on the top of the storage tube (2), protective components (7) are provided on both the left and right sides of the top surface of the carriage panel (1), and a manual opening component (8) is fixedly installed on the front of the storage tube (2).

2. The automatic lifting safety protection device for the roof of a mixed explosives vehicle according to claim 1, characterized in that, The lower locking assembly (5) includes a round shaft (501), and the round shaft (501) is fixedly connected to the side of the ladder (4). The side of the mounting bracket (3) is provided with a sliding groove (502), and the inner wall of the sliding groove (502) is slidably connected to the round shaft (501). The end of the round shaft (501) is threadedly connected to a pressure cap (503), and the pressure cap (503) is fixedly connected to an anti-slip pad (504) on the side of the ladder (4).

3. The automatic lifting safety protection device for the roof of a mixed explosives vehicle according to claim 2, characterized in that, The upper locking assembly (6) includes a first electric push rod (601), and the first electric push rod (601) is fixedly installed on the top surface of the storage tube (2). The telescopic end of the first electric push rod (601) is fixedly connected to a plug rod (602). A positioning hole (603) is provided through the bottom of the left side of the ladder (4), and the inner wall of the positioning hole (603) is movably inserted into the end of the plug rod (602).

4. The automatic lifting safety protection device for the roof of a mixed explosives vehicle according to claim 2, characterized in that, The number of the lower locking components (5) is two sets, and the two sets of lower locking components (5) are symmetrically arranged on the left and right sides of the ladder (4).

5. The automatic lifting safety protection device for the roof of a mixed explosives vehicle according to claim 1, characterized in that, The protective assembly (7) includes a base plate (701), and the base plate (701) is fixedly connected to the top surface of the storage tube (2). A protective railing (702) is hinged to the top surface of the base plate (701), and a top plate (703) is hinged to the top of the protective railing (702). A second electric push rod (704) is rotatably mounted on the surface of the base plate (701), and the telescopic end of the second electric push rod (704) is hinged to the protective railing (702). A pressure sensor (705) is fixedly mounted on the bottom of the inner wall of the mounting frame (3).

6. The automatic lifting safety protection device for the roof of a mixed explosives vehicle according to claim 5, characterized in that, The manual opening component (8) includes a protective shell (801), and the protective shell (801) is fixedly installed on the front of the storage tube (2). A control button (803) is fixedly installed inside the protective shell (801), and the control button (803) is electrically connected to the second electric push rod (704). A protective cover (802) is hinged to the front of the protective shell (801), and a reflective strip (804) is fixedly connected to the surface of the protective cover (802).