Anti-falling protection device for escape ladder of belt conveyor

Abstract

The utility model discloses a belt conveyor escape ladder anti-falling protection device, which relates to the technical field of escape ladder protection, and comprises a pillar, a vertical ladder and a vertical ladder cover plate, the vertical ladder comprises a guardrail, a ladder and a support frame, the guardrail is in a semi-circular ring shape and is sleeved on one side of the ladder, the support frame is arranged on the other side of the ladder and is connected with the pillar, and the vertical ladder cover plate is arranged on the pillar. The top of the supporting column is connected with the vertical ladder steel structure platform, and the ladder penetrates out upwards from one end of the vertical ladder steel structure platform. The overall protectiveness of the vertical ladder can be improved, and the accident rate is reduced.

Description

Technical Field

[0001] This utility model relates to the field of escape ladder protection technology, specifically a fall protection device for a belt conveyor escape ladder. Background Technology

[0002] Safety protection devices for belt conveyors serve to protect both people and the conveyor itself, ensuring safe operation of the conveyor and safe work for personnel. Common protective devices include pull rope switches, belt misalignment switches, tear-resistant devices, guardrails, protective fences, and escape ladders. Escape ladders are primarily located in the middle of long-distance belt conveyors, at their lowest point relative to the ground.

[0003] Currently, common escape ladders are usually connected to the upper truss and the lower support, and are set up as straight ladders. They lack an overall protective design and have the risk of accidentally stepping into a hole. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a fall protection device for the escape ladder of a belt conveyor, which provides safety protection for climbing the ladder, and at the same time sets up a straight ladder steel structure platform to prevent workers from falling into the air and causing accidents.

[0005] The purpose of this utility model is achieved through the following technical solution: a fall protection device for an escape ladder of a belt conveyor, the device comprising a support column, a straight ladder and a straight ladder cover plate, the straight ladder comprising a guardrail, a ladder and a support frame, the guardrail being semi-circular and fitted onto one side of the ladder, the support frame being disposed on the other side of the ladder and connected to the support column, the top of the support column being connected to the steel structure platform of the straight ladder, the ladder extending upward from one end of the steel structure platform of the straight ladder, the ladder being a component for workers to climb up and down and having a certain degree of protection, the guardrail being a protective device to prevent workers from falling, and the support frame having a certain supporting and fixing function.

[0006] It also includes a straight ladder cover plate, which includes a square hinge plate and a tension handle block. The straight ladder steel structure platform is provided with a hole for placing the straight ladder cover plate. One side of the square hinge plate is movably connected to the straight ladder steel structure platform. The tension handle block is set on the square hinge plate. The straight ladder cover plate is set above the straight ladder. The straight ladder cover plate is used to cover the part of the ladder that extends upward from one end of the straight ladder steel structure platform, ensuring that there is a protective device at the top of the straight ladder and preventing the risk of personnel falling into a hole.

[0007] The square hinge plate is made of steel grating, which has both high strength and toughness, as well as good rust resistance.

[0008] The pull handle block is made of round steel bent into a handle shape, which greatly enhances the ease of use of the switch and makes it easy to hold and lift.

[0009] It also includes a straight ladder walkway door, which includes a bolt, a safety net, and a door frame. The door frame includes a left door frame and a right door frame. The bottom of the left and right door frames is connected to the steel structure platform of the straight ladder. The left side of the right door frame is movably connected to the safety net. The left door frame and the safety net are opened or closed by a bolt. The straight ladder walkway door serves to connect the straight ladder and the walkway platform and ensures that the straight ladder will not be accidentally opened.

[0010] The door latch is equipped with an audible and visual alarm, which is connected to the alarm on the belt of the conveyor. The door latch is an electronic door lock, and the audible and visual alarm is connected to the electronic door lock signal, which can ensure that the electronic door lock will automatically open in case of emergency and remain closed under normal circumstances.

[0011] The straight ladder steel structure platform is equipped with a walkway platform and a platform support, and the top of the platform support is connected to the truss.

[0012] The support column is A-shaped, but the top of the column is flattened to facilitate support of the straight ladder steel structure platform.

[0013] The support column is reinforced with diagonal bracing.

[0014] The beneficial effects of this utility model are:

[0015] 1. The steel structure platform of this utility model has a straight ladder walkway door, walkway platform, platform support and straight ladder cover plate above it, and a straight ladder below it. It connects other components into a whole, ensuring the overall protection of the escape ladder.

[0016] 2. This utility model effectively solves the safety problems of the lack of effective protection at the top of the straight ladder of the belt conveyor, which poses a risk of falling due to missteps; and the lack of walkway doors, which makes it easy for the ladder to be used illegally in non-emergency situations. It can better protect the safety of operators. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 for Figure 1 Left view after removing the truss;

[0019] Figure 3 for Figure 1 Top view after removing the truss;

[0020] Figure 4 This is a structural schematic diagram of the cover plate for a straight ladder;

[0021] Figure 5 This is a schematic diagram of the structure of the tension handle block;

[0022] Figure 6 This is a structural diagram of a straight ladder walkway door;

[0023] In the diagram: 1-truss, 2-door bolt, 3-door frame, 4-guardrail, 5-straight ladder steel structure platform, 6-walkway platform, 7-platform support, 8-guardrail, 9-ladder, 10-support column, 11-support frame, 12-square hinge plate, 13-tension handle block. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0026] In one embodiment of this application:

[0027] like Figures 1 to 6 As shown, a fall protection device for an escape ladder of a belt conveyor includes a support column 10, a straight ladder, and a cover plate for the straight ladder. The straight ladder includes a guardrail 8, a ladder 9, and a support frame 11. The guardrail 8 is semi-circular and fits onto one side of the ladder 9. The left and right sides of the guardrail 8 are welded and fixed to the left and right sides of the ladder 9, respectively. The support frame 11 is located on the other side of the ladder 9 and is connected to the side of the support column 10. The top of the support column 10 is fixed to the steel structure platform 5 of the straight ladder. The ladder 9 extends upward from one end of the steel structure platform 5 of the straight ladder. The ladder 9 is the component for workers to climb up and down and has a certain degree of protection. The guardrail 8 is a protective device to prevent workers from falling. The support frame 11 has a certain supporting and fixing function.

[0028] It also includes a straight ladder cover plate, which includes a square hinge plate 12 and a tension handle block 13. The straight ladder steel structure platform 5 is provided with a square hole for placing the straight ladder cover plate. One side of the square hinge plate 12 is movably connected to the straight ladder steel structure platform 5 through a hinge. The tension handle block 13 is set on the square hinge plate 12. The straight ladder cover plate is set above the straight ladder. The straight ladder cover plate is used to cover the part of the ladder 9 that extends upward from one end of the straight ladder steel structure platform 5, ensuring that there is a protective device at the top of the straight ladder and preventing the operator from falling into a hole.

[0029] The square hinge plate 12 is made of steel grating, which has both high strength and toughness, as well as good rust resistance.

[0030] It also includes a straight staircase corridor door, which consists of a door bolt 2, a safety net 4, and a door frame 3. The door frame 3 includes a left door frame and a right door frame. The bottom of the left and right door frames are connected to the steel structure platform 5 of the straight staircase. The left side of the right door frame is movably connected to the safety net 4 via a hinge. The left door frame and the safety net 4 are opened or closed via the door bolt 2. The straight staircase corridor door serves to connect the straight staircase and the corridor platform 6 and ensures that the straight staircase cannot be accidentally opened.

[0031] The door bolt 2 is equipped with an audible and visual alarm, which is connected to the alarm of the belt conveyor. The door bolt 2 is an electronic door lock, and the audible and visual alarm is connected to the electronic door lock signal.

[0032] like Figure 1 and Figure 3 As shown, the walkway platform 6 is fixed to the right side of the straight ladder steel structure platform 5. The straight ladder walkway door is fixed to one end of the walkway platform 6, and the other side of the straight ladder walkway door is connected to the belt conveyor walkway of the belt conveyor. The platform support 7 is fixed to the left side of the straight ladder steel structure platform 5, and the top of the platform support 7 is fixed to the truss 1. In case of emergency, the audible and visual alarm will be activated, the door bolt 2 will be opened, the safety net 4 will be opened, and one can enter the walkway platform 6. By holding the pull handle block 13, the square hinge plate 12 will be pulled upwards, and one can descend the ladder 9 to the ground to complete the escape.

[0033] In another embodiment of this application:

[0034] Based on the previous embodiment, this embodiment improves the support column 10. The support column 10 is A-shaped, but the top of the support column 10 is flattened to facilitate support of the straight ladder steel structure platform 5.

[0035] Diagonal bracing is installed on the support column 10 to reinforce it.

[0036] The above description is merely an embodiment of this utility model. It should be understood that this utility model is not limited to the form disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A fall protection device for an escape ladder on a belt conveyor, characterized in that: The system includes a support column (10), a straight ladder, and a straight ladder cover plate. The straight ladder includes a guardrail (8), a ladder (9), and a support frame (11). The guardrail (8) is semi-circular and is fitted onto one side of the ladder (9). The support frame (11) is located on the other side of the ladder (9) and is connected to the support column (10). The top of the support column (10) is connected to the steel structure platform (5) of the straight ladder. The ladder (9) extends upward from one end of the steel structure platform (5).

2. The fall protection device for an escape ladder on a belt conveyor according to claim 1, characterized in that: It also includes a straight ladder cover plate, which includes a square hinge plate (12) and a tension handle block (13). The straight ladder steel structure platform (5) is provided with a hole for placing the straight ladder cover plate. One side of the square hinge plate (12) is movably connected to the straight ladder steel structure platform (5), and the tension handle block (13) is provided on the square hinge plate (12).

3. The fall protection device for an escape ladder on a belt conveyor according to claim 2, characterized in that: The square hinge plate (12) is made of steel grating.

4. The fall protection device for an escape ladder on a belt conveyor according to claim 1, characterized in that: The ladder cover is located above the ladder.

5. The fall protection device for an escape ladder on a belt conveyor according to claim 1, characterized in that: It also includes a straight ladder walkway door, which includes a door bolt (2), a safety net (4) and a door frame (3). The door frame (3) includes a left door frame and a right door frame. The bottom of the left door frame and the right door frame are connected to the steel structure platform (5) of the straight ladder. The left side of the right door frame is movably connected to the safety net (4). The left door frame and the safety net (4) are fixed by the door bolt (2).

6. The fall protection device for an escape ladder of a belt conveyor according to claim 5, characterized in that: The door bolt (2) is equipped with an audible and visual alarm. The door bolt (2) is an electronic door lock, and the audible and visual alarm is connected to the electronic door lock via a signal.

7. The fall protection device for an escape ladder on a belt conveyor according to claim 1, characterized in that: The straight ladder steel structure platform (5) is equipped with a walkway platform (6) and a platform support (7), and the top of the platform support (7) is connected to the truss (1).

8. The fall protection device for an escape ladder on a belt conveyor according to claim 1, characterized in that: The support column (10) is A-shaped.

9. A fall protection device for an escape ladder on a belt conveyor according to claim 8, characterized in that: The support column (10) is provided with diagonal bracing.

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