Safety maintenance crawling ladder for railway tunnel construction equipment

Abstract

The utility model discloses a railway tunnel construction equipment safety maintenance ladder stand which comprises a ladder stand assembly, the ladder stand assembly comprises at least one first ladder body and at least one second ladder body, the first ladder body and the second ladder body are connected in a sliding mode, one end of the first ladder body is provided with a connecting part used for being detachably connected with a construction table, and the other end of the first ladder body is provided with a second ladder body. One end of the second ladder body is provided with a rotating shaft used for being rotationally connected with the bottom of the construction equipment, the other end of the second ladder body is provided with a sliding rail used for being in sliding fit with the first ladder body, and the first ladder body is partially arranged in the sliding rail in a sliding mode. A plurality of balls are evenly distributed at the sliding position of the first ladder body and the second ladder body, the ladder body can stretch out and draw back, the length of the ladder body is larger after stretching out and drawing back, the structure is simple, and operation and installation are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of ladders, in particular to a ladder for safe maintenance of railway tunnel construction equipment. Background Art

[0002] During railway tunnel construction, ladders are important temporary facilities, and their safety is directly related to the life safety of construction workers. When lifting platforms are used as railway tunnel construction equipment, safety maintenance ladders are indispensable temporary facilities. Construction workers can climb to the platform to work through safety maintenance ladders. Existing safety maintenance ladders are generally configured with ladders of different lengths according to the size of the equipment. The length of the ladder is fixed and cannot be adjusted. The existing safety maintenance ladder is connected to the platform at one end and the ground at the other end. This ladder cannot be disassembled. If the ladder fails, it is very inconvenient to repair it. In addition, the length of this telescopic ladder is short and cannot meet the needs of construction workers. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the utility model provides a railway tunnel construction equipment safety maintenance ladder, the ladder body can be extended, the ladder body is longer after extension, the structure is simple, the operation is convenient, and it is easy to install.

[0004] To achieve the above-mentioned purpose, the utility model provides a safety maintenance ladder for railway tunnel construction equipment, including a ladder assembly, wherein the ladder assembly includes at least a first ladder body and a second ladder body, the first ladder body and the second ladder body are slidingly connected, one end of the first ladder body is provided with a connecting portion for detachable connection to a construction platform, and the other end is slidingly matched with the second ladder body, one end of the second ladder body is provided with a rotating shaft for rotationally connected to the bottom of the construction equipment, and the other end is provided with a slide rail for slidingly matching with the first ladder body, the first ladder body is partially slidably set in the slide rail, and a number of balls are evenly distributed at the sliding parts of the first ladder body and the second ladder body.

[0005] The effect that can be produced by adopting the above technical solution is: the sliding connection setting of the first ladder body and the second ladder body improves the flexibility and adaptability of the two adjacent ladder bodies. One end of the first ladder body is fixed to the construction platform through a connecting part, and the other end slides with the second ladder body, so that the entire ladder can be adjusted according to the height of the construction platform. One end of the second ladder body is rotatably connected to the bottom of the construction equipment through a rotating shaft, and the other end is provided with a slide rail. The first ladder body is partially slidably set in the slide rail. This design allows the ladder to stably support the construction equipment at different angles and positions. In addition, a number of balls are evenly distributed at the sliding parts of the first ladder body and the second ladder body. The presence of these balls significantly reduces the friction during sliding, making the sliding between the ladder bodies smoother, while also improving the durability and reliability of the ladder.

[0006] The present invention is further provided with a limiting convex edge on the second ladder body corresponding to the position of the slide rail, which is used to limit a part of the first ladder body to slide in the slide rail.

[0007] The above technical solution can produce the following effects: the provision of the limiting convex edge can prevent the first ladder body and the second ladder body from falling off the slide rail during sliding engagement, thereby improving the connection strength and sliding stability.

[0008] The utility model is further provided with: the connecting portion is provided with a connecting end head and a connecting groove provided on the construction platform for connecting with the connecting end head, and the connecting end head is movably connected to the connecting groove.

[0009] The above technical solution can produce the following effects: the connection method is simple by setting a connecting end and a connecting groove to cooperate with each other for a movable connection, and the connecting groove can protect the connecting end, thereby preventing the connecting end from being damaged and causing the service life of the ladder to be reduced.

[0010] The utility model is further configured as follows: the connecting end is a column with an arc-shaped outer wall, a neck column is connected between the connecting end and the first ladder body, the inner wall of the connecting groove is arc-shaped, a notch is provided in the connecting groove corresponding to the position of the neck column, the neck column is movably arranged in the notch, and the connecting groove is provided with an opening.

[0011] The effect that can be produced by adopting the above-mentioned technical solution is: setting the inner wall of the connecting end and the connecting groove into an arc shape can make the connecting end easier to rotate in the connecting groove and less likely to get stuck. Setting a notch on the connecting groove corresponding to the position of the neck column can enable the neck column to move in the notch, which is convenient for the connecting end to rotate in the connecting groove when the first ladder body and the second ladder body are telescoped together. The setting of the neck column makes the connection between the connecting end and the first ladder body more secure and the ladder body telescopes more conveniently.

[0012] The present invention is further provided with: the opening is a locking opening, the groove wall of the connecting groove is elastic, and the locking opening can limit the connecting end in the connecting groove.

[0013] The effect that can be produced by adopting the above-mentioned technical solution is: by setting the opening of the connecting groove as a lock mouth, the connecting end is not easy to fall out of the connecting groove after being connected to the connecting groove, and the connection is more stable. By setting the groove wall with elasticity, it is easier to install the connecting end in the connecting groove. Technical personnel in this field can press the connecting end to make it enter the connecting groove, which is convenient for installation and simple to operate.

[0014] The utility model is further provided with: a lifting platform for supporting the first ladder body and the second ladder body is provided at the lower end of the connection between the first ladder body and the second ladder body, and an elastic pad is provided on the end surface of the lifting platform corresponding to one end of the ladder body.

[0015] The effect that can be produced by adopting the above technical solution is: a lifting platform is set at the connection between the first ladder body and the second ladder body. When the positions of the first ladder body, the second ladder body and the lifting platform change, the lifting platform can cooperate with their lifting and support the first ladder body and the second ladder body. The elastic pad is set on the end face of the lifting platform to prevent the lifting platform from causing damage when contacting the first ladder body / second ladder body, thereby improving the service life of the equipment. At the same time, it can also ensure the stability of the ladder body and avoid violent shaking when people walk. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a partial structural exploded view of the ladder assembly according to an embodiment of the present utility model;

[0017] Figure 2 This is a structural diagram of the slide rail of the ladder assembly according to an embodiment of the present utility model;

[0018] Figure 3 It is the front view of the embodiment of the present utility model. DETAILED DESCRIPTION

[0019] An embodiment of a safety maintenance ladder for railway tunnel construction equipment according to the present invention is shown in the figure. In order to achieve the above-mentioned purpose, the present invention provides a safety maintenance ladder for railway tunnel construction equipment, including a ladder assembly 1, wherein the ladder assembly 1 includes at least a first ladder body 11 and a second ladder body 12, the first ladder body 11 and the second ladder body 12 are slidingly connected, one end of the first ladder body 11 is provided with a connecting portion for detachable connection to a construction platform 2, and the other end is slidingly matched with the second ladder body 12, one end of the second ladder body 12 is provided with a rotating shaft 121 for rotationally connecting to the bottom of the construction equipment, and the other end is provided with a slide rail 123 for slidingly matching with the first ladder body 11, the first ladder body 11 is partially slidably arranged in the slide rail 123, and a plurality of balls 3 are evenly distributed at the sliding parts of the first ladder body 11 and the second ladder body 12. The above technical solution can produce the following effects: the sliding connection between the first ladder body 11 and the second ladder body 12 improves the flexibility and adaptability of the two adjacent ladder bodies. One end of the first ladder body 11 is fixed to the construction platform 2 via a connection portion, and the other end slides with the second ladder body 12, so that the entire ladder can be adjusted according to the height of the construction platform 2. One end of the second ladder body 12 is rotatably connected to the bottom of the construction equipment via a rotating shaft 121, and the other end is provided with a slide rail 123. The first ladder body 11 is partially slidably arranged in the slide rail 123. This design allows the ladder to stably support the construction equipment at different angles and positions. The second ladder body 12 is provided with a limiting convex edge 122 corresponding to the slide rail 123 for partially limiting the first ladder body 11 to slide in the slide rail 123. The limiting convex edge 122 can prevent the first ladder body 11 and the second ladder body 12 from falling out of the slide rail 123 when sliding together, thereby improving the connection strength and sliding stability. The connecting portion is provided with a connecting end 111 head and a connecting groove 112 provided on the construction platform 2 for connecting to the connecting end 111 head. The connecting end 111 head is movably connected to the connecting groove 112. The connecting end 111 head is movably connected to the connecting groove 112. The connecting method is simple, and the connecting groove 112 can protect the connecting end 111 head, thereby preventing the connecting end 111 head from being damaged and causing a reduction in the service life of the ladder body.The connecting end 111 is a column with an arc-shaped outer wall. A neck column 113 is connected between the connecting end 111 and the first ladder body 11. The inner wall of the connecting groove 112 is arc-shaped. A notch 114 is provided in the connecting groove 112 corresponding to the position of the neck column 113. The neck column 113 is movably arranged in the notch 114. The connecting groove 112 is provided with an opening 115. The inner walls of the connecting end 111 and the connecting groove 112 are both arc-shaped, which makes it easier for the connecting end 111 to rotate in the connecting groove 112 and is not prone to jamming. The notch 114 is provided on the connecting groove 112 corresponding to the position of the neck column 113, which makes the neck column 113 able to move in the notch 114, so that the connecting end 111 can rotate in the connecting groove 112 when the first ladder body 11 and the second ladder body 12 cooperate to extend and retract. The neck column 113 is provided so that the connecting end 111 The connection with the first ladder body 11 is more firm, and the ladder body is more convenient to extend and retract; the opening 115 is a locking mouth, and the groove wall of the connecting groove 112 is elastic, and the locking mouth can limit the connection end 111 head in the connecting groove 112. The opening 115 of the connecting groove 112 is set as a locking mouth, so that the connection end 111 head is not easy to come out of the connecting groove 112 after being connected to the connecting groove 112, and the connection is more stable. The groove wall with elasticity can make it easier for the connection end 111 head to be installed in the connecting groove 112. Those skilled in the art can press the connection end 111 head to enter the connecting groove 112, which is convenient for installation. The locking mouth in this solution has a locking amount, and the locking amount is set to limit the connection end 111 head from coming out of the connecting groove 112 from the opening 115. The locking amount in this solution is to set the spacing of the opening 115 to be smaller than the radial width of the connection end 111 head;The lower end of the connection between the first ladder body 11 and the second ladder body 12 is provided with a lifting platform 4 for supporting the first ladder body 11 and the second ladder body 12. The end surface of the lifting platform 4 corresponding to one end of the ladder body is provided with an elastic pad 5. The lifting platform 4 is provided at the connection between the first ladder body 11 and the second ladder body 12. When the positions of the first ladder body 11, the second ladder body 12 and the lifting platform 4 change, the lifting platform 4 can cooperate with the lifting and supporting the first ladder body 11 and the second ladder body 12. The elastic pad 5 is provided on the end surface of the lifting platform 4 to prevent the lifting platform 4 from damaging the first ladder body 11 / the second ladder body 12 when it contacts them, thereby improving the use of the equipment. The present invention relates to a ladder system which is used to provide a plurality of ladders for the user, wherein the ladder is provided with a plurality of ladders, each ladder being provided with a plurality of ladders, and a plurality of ladders for the user, wherein the plurality of ladders are provided with ladders for the user, and a plurality of ladders for the user are provided with ladders for the user, wherein the plurality of ladders are provided with ladders for the user, and a plurality of ladders for the user are provided with ladders for the user, The technician connects one end of the second ladder body 12 to the bottom of the construction equipment, and one end of the first ladder body 11 to the construction platform 2. When one end of the first ladder body 11 is connected to the construction platform 2, the technician can press the connection end 111 on the first ladder body 11 toward the connection groove 112 to make it enter the connection groove 112 and rotate in the connection groove 112. Thereafter, when the technician operates the construction platform 2 to rise, the first ladder body 11 can slide on the second ladder body 12 as the construction platform 2 rises to extend the length of the entire ladder body. When the technician operates the construction platform 2 to descend, the first ladder body 11 can slide along with the construction platform 2 descends, thereby sliding on the second ladder body 12 to shorten the entire length of the ladder body. When the construction platform 2 descends to the lowest position, the connection between the first ladder body 11 and the second ladder body 12 can overlap. When the ladder body needs to be repaired, a person skilled in the art can remove the end of the first ladder body 11 connected to the construction platform 2 from the connection groove 112, which is convenient for operation and maintenance. When the construction platform 2 is raised and lowered, the ladder assembly 1 is extended and retracted, and the angle between the ladder assembly 1 and the bottom surface of the construction equipment will also change. At this time, the lifting platform 4 can rise and fall with the extension and retraction of the ladder assembly 1. The elastic pad 5 on the end surface of the lifting platform 4 can contact the ladder body to prevent damage to the ladder body.

[0020] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A safety maintenance ladder for railway tunnel construction equipment, characterized by: The ladder assembly includes at least one first ladder body and a second ladder body, the first ladder body and the second ladder body are slidingly connected, one end of the first ladder body is provided with a connecting part for detachably connecting to the construction platform, and the other end is slidingly matched with the second ladder body, one end of the second ladder body is provided with a rotating shaft for rotating connection to the bottom of the construction equipment, and the other end is provided with a slide rail for slidingly matching with the first ladder body, the first ladder body is partially slidably set in the slide rail, and a number of balls are evenly distributed on the sliding parts of the first ladder body and the second ladder body.

2. A railway tunnel construction equipment safety maintenance ladder according to claim 1, characterized in that: The second ladder body is provided with a limiting convex edge corresponding to the slide rail for limiting a part of the first ladder body to slide in the slide rail.

3. The railway tunnel construction equipment safety maintenance ladder according to claim 1, characterized in that: The connecting portion is provided with a connecting end and a connecting groove provided on the construction platform for connecting with the connecting end, and the connecting end is movably connected to the connecting groove.

4. A railway tunnel construction equipment safety maintenance ladder according to claim 3, characterized in that: The connecting end is a column with an arc-shaped outer wall. A neck column is connected between the connecting end and the first ladder body. The inner wall of the connecting groove is arc-shaped. A notch is provided in the connecting groove corresponding to the position of the neck column. The neck column is movably arranged in the notch. The connecting groove is provided with an opening.

5. The railway tunnel construction equipment safety maintenance ladder according to claim 4, characterized in that: The opening is a locking opening, the groove wall of the connecting groove is elastic, and the locking opening can limit the connecting end in the connecting groove.

6. The railway tunnel construction equipment safety maintenance ladder according to claim 1, characterized in that: A lifting platform for supporting the first ladder body and the second ladder body is provided at the lower end of the connection between the first ladder body and the second ladder body, and an elastic pad is provided on the end surface of the lifting platform corresponding to one end of the ladder body.

Images