Folding type container train top inspection ladder

Abstract

The invention provides a folding type container train top inspection ladder which comprises two foldable vertical rods, a plurality of transverse rods, a plurality of supporting rods and locking assemblies, the transverse rods are connected between the two vertical rods and arranged at equal intervals in the length direction of the vertical rods, and the supporting rods are connected to the same sides of the two vertical rods. The vertical rod comprises a first rod body and a second rod body which are hinged up and down, a fixing sleeve is arranged at the hinged position in a sliding mode, the top end of the first rod body is bent downwards to form an inverted-U-shaped handrail, the lower end of the handrail is connected with a rectangular hook protruding upwards, and the lower end of the second rod body on the right side extends downwards. One end of the lock rod is connected with the lock head through the mandrel, and the other end is connected with the right second rod extension section. The hanging device is firm in hanging and low in safety risk. The folding device is small and light after being folded, can be operated by one person, and is low in labor intensity and high in working efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of railway transportation, and in particular relates to a foldable top inspection ladder for a container train. Background Art

[0002] In order to meet the requirements of safety and environmental protection, the railway department has normalized the use of container freight trains for loading and transporting operations. According to the requirements of railway transportation operations, after loading containers, the roof of the car needs to be checked and debris cleaned. The top of the open car loaded with containers is about 4 meters above the ground. Usually, the train is adjusted to the bottom of the high platform for operation, or a 4-meter-long iron ladder weighing about 40kg is lifted and transported to the track, and two operators climb to the top for operation. Chinese utility model CN214035498 U discloses a railway special inspection ladder, including a fixed bracket assembly, a connecting bracket assembly, an extension bracket assembly and an installation assembly. The connecting bracket assembly is fixedly arranged at the upper end of the fixed bracket assembly, the extension bracket assembly is fixedly arranged at the upper end of the connecting bracket assembly, and the installation assembly is fixedly arranged at the upper end of the extension bracket assembly. The fixed bracket assembly includes a first fixed bracket and a second fixed bracket; the connecting bracket assembly includes a first connecting bracket and a second connecting bracket, and a pedal rod is arranged between the first connecting bracket and the second connecting bracket; the extension bracket assembly includes a first extension bracket and a second extension bracket, and a second pedal rod is arranged between the first extension bracket and the second extension bracket. When inspecting the above-mentioned device, one person holds the ladder while the other climbs to the roof to perform the operation. Due to the large span, there is shaking during the climbing process. This operation method is not only time-consuming and labor-intensive, but also poses a safety hazard of the ladder tipping over, sliding or the operator falling. Summary of the invention

[0003] The technical problem solved by the invention is that the existing railway inspection ladder has many operators, low operating efficiency and potential safety hazards.

[0004] The present invention provides a foldable container train top inspection ladder, comprising two foldable vertical bars, a plurality of cross bars, a plurality of support bars and a locking assembly, wherein the plurality of cross bars are connected between the two vertical bars and are arranged at equal intervals along the length direction of the vertical bars, the plurality of support bars are connected on the same side of the two vertical bars and supported between the container and the vertical bars, the vertical bars comprising a first bar and a second bar hinged up and down, a fixed sleeve being slidably provided at the hinge, the top end of the first bar being bent downward to form an inverted U-shaped handrail, the lower end of the handrail being connected to a convex rectangular hook, the lower end of the second bar of the right vertical bar extending downward, the locking assembly cooperating with the container lifting hole, the container lifting hole being a rectangular hole, the locking assembly comprising a locking head and a locking rod, a pair of L-shaped locking hooks being symmetrically provided on the front end of the locking head, the hook heads of the locking hooks being arranged outward, one end of the locking rod being connected to the locking head through a core shaft, and the other end being connected to an extension section of the second rod.

[0005] Furthermore, the left and right sides of the rectangular hook respectively cooperate with the container frame and the upper corner hole of the container. The rectangular hook on the left is 8 cm high and 16 cm wide, and the rectangular hook on the right is 10 cm high and 12 cm wide.

[0006] Furthermore, a groove is provided at the lower end of the first rod and the upper end of the second rod, a pin is provided between the two groove walls of the groove, the two pins are connected by a connecting plate, through holes are provided at both ends of the connecting plate, and the through holes cooperate with the pins.

[0007] Furthermore, a return spring is provided at the connection between the locking rod and the locking head, one end of the return spring is connected to the locking rod, and the other end is connected to the locking head. When the return spring is not under force, the locking head is in a vertical state. A handle is provided on the side of the locking head. By rotating the handle, the locking head is rotated 90° and extended into the lifting hole. When the handle is released, the spring is reset, driving the locking hook back to the vertical state, so that the wall of the container lifting hole is stuck between the locking head and the locking hook.

[0008] Furthermore, the vertical rod has a diameter of 40 mm, and the fixed tube has a length of 10 cm and a diameter of 60 mm.

[0009] Furthermore, when the vertical rods are in the unfolded state, the left vertical rod is 2.57 m long, the right vertical rod is 2.95 m long, and when the vertical rods are in the folded state, they are 1.6 m long.

[0010] The present invention has the following beneficial effects: the upper hook of the foldable container train top inspection ladder of the present invention is wide on the left and narrow on the right, so that it can be hung firmly, the middle support rod is supported between the container body and the hanging ladder to prevent shaking, and the lower locking assembly is firmly fixed to the container lifting hole, so that the operators can get on and off the container safely and reliably, reducing the safety risk of operators climbing. At the same time, after the ladder is unfolded, it meets the requirements of ladder fixation and personnel climbing the ladder. After folding, it is small and light, easy for operators to carry, and easy to hang and take, and can be operated by one person, which greatly reduces the labor intensity of operators. The inspection personnel can be reduced from the original two-person operation to one person, and the other person can perform other operations in parallel, which improves the working efficiency, shortens the vehicle stop time, and saves delay costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 , schematic diagram of the foldable container train top inspection ladder of the present invention. DETAILED DESCRIPTION

[0012] In order to clearly illustrate the technical features of the present invention, the present invention is described below through specific implementation methods and in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present invention.

[0013] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0014] like Figure 1 As shown, a foldable container train top inspection ladder includes two foldable vertical rods 1, a plurality of cross rods 2, a plurality of support rods 3 and a locking assembly 6. A plurality of cross rods 2 are connected between the two vertical rods and are arranged at equal intervals along the length direction of the vertical rods for the staff to step on, and a plurality of support rods 3 are connected to the same side of the two vertical rods for supporting between the container and the inspection ladder to prevent shaking. In this embodiment, the diameter of the vertical rod 1 is 40 mm. The vertical rod 1 is a first rod and a second rod arranged up and down, and the top of the first rod is bent downward to form an inverted U-shaped handrail, and the lower end of the handrail is connected with a convex rectangular hook 5. In this embodiment, the right rectangular hook 5 is 10 cm high and 12 cm wide, which cooperates with the upper corner hole of the container, and the left rectangular hook 5 is 8 cm high and 16 cm wide, which cooperates with the container frame. The first rod and the second rod are hinged to make the ladder foldable, and a fixed sleeve 4 is slidably provided at the hinge, and the fixed sleeve 4 is 10 cm long and 60 mm in diameter, which is used for reliable fixation of the ladder after it is unfolded. In this embodiment, the lower end of the first rod and the upper end of the second rod are both provided with a groove, a pin is provided between the two groove walls of the groove, and the two pins are connected by a connecting plate, and through holes are provided at both ends of the connecting plate, and the through holes cooperate with the pins. The lower end of the second rod of the vertical rod 1 on the right side extends downward, and the locking assembly 6 is arranged at the extension section. The locking assembly cooperates with the container hoisting hole, which is a rectangular hole. The locking assembly 6 includes a lock head and a lock rod. A pair of L-shaped lock hooks are symmetrically provided at the front end of the lock head, and the hook head of the lock hook is arranged outward, and the distance between the lock hook and the lock head is 2cm. A handle is provided on the side of the lock head, one end of the locking rod is connected to the lock head through a core shaft, and the other end is fixedly connected to the second rod extension section. A reset spring is provided at the connection between the locking rod and the lock head, one end of the reset spring is connected to the locking rod, and the other end is connected to the lock head. When the reset spring is not under force, the lock head is in a vertical state. A handle is provided on the side of the lock head. By rotating the handle, the lock head is rotated 90° and extended into the lifting hole. When the handle is released, the spring resets and drives the lock hook back to the vertical state, so that the wall of the container lifting hole is stuck between the lock head and the lock hook, thereby fixing the ladder on the end beam of the container.

[0015] In this embodiment, after the foldable container train top inspection ladder is unfolded, the left vertical bar 1 is 2.57m, and the right vertical bar 1 is 2.95m, which meets the requirements of ladder fixation and personnel climbing the ladder. It is safe and reliable for operators to get on and off the container, reducing the safety risk of operators climbing. After the inspection ladder is folded, the total length is about 1.6m, weighs 10kg, is compact and light, easy for operators to carry, and easy to hang and take, can be operated by one person, greatly reducing the labor intensity of operators. The inspection personnel can be reduced from the original two-person operation to one person, and the other person can perform other operations in parallel, which improves the work efficiency, shortens the vehicle stop time, and saves delay costs.

[0016] Other parts not described in detail belong to the prior art and will not be described here in detail.

[0017] It will be understood that the present invention is described through some embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention.

[0018] In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A foldable container train top inspection ladder, characterized in that: The invention comprises two foldable vertical bars, a plurality of cross bars, a plurality of support bars and a locking assembly, wherein the plurality of cross bars are connected between the two vertical bars and are arranged at equal intervals along the length direction of the vertical bars, the plurality of support bars are connected on the same side of the two vertical bars and are supported between the container and the vertical bars, the vertical bars comprise a first bar and a second bar hinged up and down, a fixed sleeve is slidably provided at the hinge, the top end of the first bar is bent downward to form an inverted U-shaped handrail, the lower end of the handrail is connected to a convex rectangular hook, the lower end of the second bar of the right vertical bar extends downward, the locking assembly cooperates with the container lifting hole, the container lifting hole is a rectangular hole, the locking assembly comprises a locking head and a locking rod, a pair of L-shaped locking hooks are symmetrically provided at the front end of the locking head, the hook heads of the locking hooks are arranged outward, one end of the locking rod is connected to the locking head through a core shaft, and the other end is connected to the extension section of the second rod.

2. The foldable inspection ladder for container train according to claim 1, characterized in that: The left and right sides of the rectangular hook are matched with the container frame and the upper corner hole of the container respectively. The rectangular hook on the left side is 8 cm high and 16 cm wide, and the rectangular hook on the right side is 10 cm high and 12 cm wide.

3. The foldable inspection ladder for container train according to claim 1, characterized in that: The lower end of the first rod and the upper end of the second rod are both provided with grooves, a pin is provided between the two groove walls of the groove, the two pins are connected by a connecting plate, and through holes are provided at both ends of the connecting plate, and the through holes cooperate with the pins.

4. The foldable container train top inspection ladder according to claim 1, characterized in that: A reset spring is provided at the connection between the locking rod and the locking head, one end of the reset spring is connected to the locking rod, and the other end is connected to the locking head. When the reset spring is not under force, the locking head is in a vertical state. A handle is provided on the side of the locking head. By rotating the handle, the locking head is rotated 90° and extended into the lifting hole. When the handle is released, the spring resets and drives the locking hook back to the vertical state, so that the wall of the container lifting hole is stuck between the locking head and the locking hook.

5. The foldable container train top inspection ladder according to claim 1, characterized in that: The vertical rod has a diameter of 40 mm, and the fixed tube has a length of 10 cm and a diameter of 60 mm.

6. The foldable container train top inspection ladder according to claim 1, characterized in that: When the vertical rods are in the unfolded state, the left vertical rod is 2.57 m long and the right vertical rod is 2.95 m long. When the vertical rods are in the folded state, they are 1.6 m long.

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