Extension device for movable guardrail of special vehicle

Abstract

The utility model discloses a special vehicle movable guardrail extension device, which relates to the field of vehicles, and comprises a tank car main body, a plurality of uniformly distributed vertical rods are rotatably arranged on both sides of the top of the tank car main body, and the upper ends of the vertical rods on both sides are rotatably provided with the same cross rod. The same air cylinder is rotationally arranged between the top of the tank car main body and one of the vertical rods, and a rear crawling ladder is vertically and fixedly arranged at the tail part of the tank car main body; and guardrail lengthening rods are fixedly arranged on the rod walls of the vertical rods close to the tail part of the tank car main body. The guardrail lengthening rod is arranged between the movable guardrail and the rear crawling ladder, so that the protection length of the movable guardrail is prolonged, and the safety of workers climbing onto the top of the tank car is improved.

Description

Technical Field

[0001] The utility model relates to the field of vehicles, in particular to a movable guardrail extension device for a special vehicle. Background Art

[0002] Tank trucks are tank-shaped transport vehicles used to transport various liquids, liquefied gases, powdered substances, etc. Tank trucks often need to load and unload goods during transportation, and workers must enter the top of the tank truck through an escalator to perform related operations. Therefore, it is necessary to install a movable guardrail on the top of the tank.

[0003] After the movable guardrail of the existing tank truck is raised, there is a distance between the movable guardrail and the ladder, and there is no protective structure in this distance, so the workers cannot be protected in this area, which poses certain safety hazards. Therefore, a special vehicle movable guardrail extension device is proposed. Utility Model Content

[0004] In view of the above-mentioned problems existing in the existing movable guardrails of tank trucks, the present utility model is proposed.

[0005] Therefore, the purpose of the utility model is to provide a special vehicle movable guardrail extension device to solve the problems raised by the background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A special vehicle movable guardrail extension device includes a tank truck body, a plurality of evenly distributed vertical rods are rotatably provided on both sides of the top of the tank truck body, the upper ends of the vertical rods on both sides are rotatably connected to the same cross rod, a same cylinder is rotatably provided between the top of the tank truck body and one of the vertical rods, a rear ladder is vertically fixed at the tail of the tank truck body; guardrail extension rods are fixedly provided on the rod walls of the vertical rods close to the tail of the tank truck body.

[0008] Preferably, a plurality of evenly distributed guardrail seats are fixedly provided on both sides of the top of the tank truck body, and the lower ends of the plurality of vertical rods are rotatably connected to the guardrail seats via axle pins.

[0009] Preferably, a cylinder seat is fixedly provided on the top of the tank truck body, and the tail of the cylinder is rotatably connected to the cylinder seat via an axle pin.

[0010] Preferably, a fisheye joint is fixedly provided on the rod wall of one of the vertical rods, and the end of the piston rod of the cylinder is rotatably connected to the fisheye joint via an axle pin.

[0011] Furthermore, a reinforcement rod is fixedly provided between the rod wall of the guardrail extension rod and the rod wall of the vertical rod.

[0012] Preferably, the cylinder is electrically connected to an external wireless remote controller.

[0013] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0014] 1. The utility model provides a guardrail extension rod arranged on the vertical rod near the rear of the tank truck body. After the guardrail composed of the vertical rod and the horizontal rod is extended and raised by the cylinder, the guardrail extension rod will automatically open and protect the distance between the guardrail and the rear ladder. When the staff climbs to the top of the tank truck body through the rear ladder, they are protected by the guardrail extension rod and the guardrail composed of the vertical rod and the horizontal rod, thereby ensuring the safety of the staff operating on the top of the tank truck body.

[0015] 2. The utility model can play a reinforcing role by providing a reinforcing rod between the guardrail extension rod and the vertical rod, and forming a right triangle between the reinforcing rod, the vertical rod and the guardrail extension rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 For the utility model Figure 1 Schematic diagram of the structure with the middle vertical bar and the horizontal bar folded away;

[0019] Figure 3 For the utility model Figure 1 Schematic diagram of the tail structure;

[0020] Figure 4 For the utility model Figure 1 Schematic diagram of the structure of the middle vertical rod, horizontal rod and cylinder.

[0021] Description of reference numerals:

[0022] 1. Tank truck body; 2. Vertical bar; 3. Horizontal bar; 4. Cylinder; 5. Rear ladder; 6. Guardrail extension rod; 7. Guardrail seat; 8. Cylinder seat; 9. Fisheye joint; 10. Reinforcement rod. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0024] The utility model embodiment discloses a movable guardrail extension device for a special vehicle.

[0025] The utility model provides Figure 1-3 The shown special vehicle movable guardrail extension device comprises a tank truck body 1, a plurality of evenly distributed vertical rods 2 are rotatably provided on both sides of the top of the tank truck body 1, and the upper ends of the vertical rods 2 on both sides rotate the same cross bar 3, and the same cylinder 4 is rotatably provided between the top of the tank truck body 1 and one of the vertical rods 2, and the cylinder 4 is electrically connected to an external wireless remote control, and the staff can remotely operate the extension and retraction of the cylinder 4, and a rear ladder 5 is vertically fixed at the tail of the tank truck body 1, and the rod wall of the vertical rod 2 near the tail of the tank truck body 1 is fixed with a guardrail extension rod 6. When the staff needs to climb to the top of the tank truck body 1, the remote control is first used to control the cylinder 4 to extend, and the cylinder 4 can push the vertical rod 2 and the cross bar 3 and raise them. At this time, the guardrail extension rod 6 will automatically open and protect the distance between the guardrail and the rear ladder 5. Finally, when the staff climbs to the top of the tank truck body 1 through the rear ladder 5, the guardrail composed of the guardrail extension rod 6, the vertical rod 2 and the cross bar 3 is used for protection, so as to ensure the safety of the staff operating on the top of the tank truck body 1.

[0026] In order to enable the vertical rod 2, the horizontal rod 3 and the cylinder 4 as well as the tanker body 1 to be rotatably connected, as shown in FIG. Figure 1-4 As shown, a plurality of evenly distributed guardrail seats 7 are fixedly provided on both sides of the top of the tank truck body 1, the lower ends of a plurality of vertical rods 2 are rotatably connected to the guardrail seats 7 through axle pins, a cylinder seat 8 is fixedly provided on the top of the tank truck body 1, the tail of the cylinder 4 is rotatably connected to the cylinder seat 8 through axle pins, a fisheye joint 9 is fixedly provided on the rod wall of one of the vertical rods 2, and the end of the piston rod of the cylinder 4 is rotatably connected to the fisheye joint 9 through axle pins.

[0027] Finally, in order to reinforce the guardrail extension rod 6, Figure 1 and 4 As shown, a reinforcing rod 10 is fixedly provided between the rod wall of the guardrail extension rod 6 and the rod wall of the vertical rod 2 to increase the stability of the guardrail extension rod 6.

[0028] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A special vehicle movable guardrail extension device, comprising a tank vehicle body (1), characterized in that: A plurality of evenly distributed vertical rods (2) are rotatably provided on both sides of the top of the tank truck body (1), the upper ends of the vertical rods (2) on both sides rotate the same horizontal rod (3), a cylinder (4) is rotatably provided between the top of the tank truck body (1) and one of the vertical rods (2), and a rear ladder (5) is vertically fixed at the tail of the tank truck body (1); Guardrail extension rods (6) are fixedly provided on the rod walls of the vertical rods (2) close to the rear of the tank truck body (1).

2. The special vehicle movable guardrail extension device according to claim 1 is characterized in that: A plurality of evenly distributed guardrail seats (7) are fixedly provided on both sides of the top of the tank truck body (1), and the lower ends of the plurality of vertical rods (2) are rotatably connected to the guardrail seats (7) via axle pins.

3. The special vehicle movable guardrail extension device according to claim 1 is characterized in that: A cylinder seat (8) is fixedly provided on the top of the tank truck body (1), and the tail of the cylinder (4) is rotatably connected to the cylinder seat (8) via an axle pin.

4. The special vehicle movable guardrail extension device according to claim 1 is characterized in that: A fisheye joint (9) is fixedly provided on the rod wall of one of the vertical rods (2), and the end of the piston rod of the cylinder (4) is rotatably connected to the fisheye joint (9) via an axle pin.

5. The special vehicle movable guardrail extension device according to claim 1 is characterized in that: A reinforcement rod (10) is fixedly provided between the rod wall of the guardrail extension rod (6) and the rod wall of the vertical rod (2).

6. The special vehicle movable guardrail extension device according to claim 1 is characterized in that: The cylinder (4) is electrically connected to an external wireless remote controller.

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