Engineering ladder assembly convenient to stretch and limit

Abstract

The utility model relates to the technical field of mine engineering, in particular to an engineering ladder assembly convenient to stretch and limit, which comprises a ground gripping screw, the ground gripping screw is screwed in a fixed screw plate, a bottom plate is welded on one side of the fixed screw plate, a sleeve ladder is arranged at the top of the bottom plate, an extension ladder is slidably connected in the sleeve ladder, and the extension ladder is connected with the ground gripping screw. A plurality of rollers are arranged on one side of the extension ladder, a telescopic top plate is arranged at the top of the extension ladder, a lock pin is in threaded connection with the interior of the sleeve ladder, and universal wheels are in threaded connection with the four corners of the bottom of the bottom plate. According to the improved engineering ladder assembly, the extension ladder is stretched upwards through the idler wheels, so that the extension ladder slides out upwards from the interior of the sleeve ladder, position fixation between the sleeve ladder and the extension ladder is completed through the lock pins, and height adjustment of the engineering ladder is achieved. The electric telescopic rod is driven to push the bottom plate to move horizontally through an external controller, so that the telescopic top plate is driven to stretch out and draw back the plate body, and the space of the engineering ladder can be adjusted to be the same as the area range space needing to be constructed.

Description

Technical Field

[0001] This utility model relates to the field of mining engineering technology, specifically to an engineering ladder assembly that facilitates stretching and limiting. Background Technology

[0002] Mining engineering refers to various engineering activities carried out in mines, including mine construction, mine development, mining, mine ventilation, mine drainage, and mine power supply. Mining engineering is characterized by complex environments, high construction difficulty, high risk, and high technical requirements. Therefore, strict adherence to safety operating procedures is essential in mining engineering to ensure the safety of personnel and equipment.

[0003] An engineering ladder is a type of access equipment used for personnel moving up and down shafts and transporting materials. It typically consists of a steel structure, platform, and handrails. Engineering ladders can be customized and designed to meet diverse usage needs. When using engineering ladders, it is crucial to adhere to safe operation and standardized usage procedures to ensure personnel safety. Regular maintenance and upkeep are also necessary to extend their lifespan and improve their stability.

[0004] In the process of realizing this utility model, the inventors discovered the following problems with the existing technology: 1. When the existing engineering ladder is stretched and raised, it is basically raised by sliding. During this stretching process, the construction workers need to exert a lot of force, which increases the labor intensity; 2. At present, when using engineering ladders, the construction workers need to manually move the entire engineering ladder to change the specific construction position. The operation process is cumbersome and inconvenient. Utility Model Content

[0005] The purpose of this utility model is to provide an engineering ladder assembly that facilitates stretching and limiting, in order to solve the problems mentioned in the background art. Existing engineering ladders, when stretched and raised, are basically raised by sliding, requiring considerable force from construction workers, increasing labor intensity. Furthermore, the specific construction area requires manual movement of the entire ladder to change its position, which is cumbersome and inconvenient. To achieve the above objective, this utility model provides the following technical solution: an engineering ladder assembly that facilitates stretching and limiting, including a gripping screw, which is screwed into the interior of a fixing plate. A base plate is welded to one side of the fixing plate, and a sleeve ladder is provided on the top of the base plate. An extension ladder is slidably connected inside the sleeve ladder. Several rollers are provided on one side of the extension ladder, and a telescopic top plate is provided on the top of the extension ladder. A locking pin is screwed into the interior of the sleeve ladder, and universal wheels are threaded to the four corners of the bottom of the base plate.

[0006] More preferably, the outer surface of the ladder has a plurality of first pin holes, the inner surface has a plurality of screw holes, and the inner wall of the closed part of the ladder has a sliding groove.

[0007] More preferably, the left and right sides of the extension ladder are provided with a number of second pin holes.

[0008] More preferably, the roller consists of a U-shaped roller and a wheel body, wherein one end of the U-shaped roller is welded to the inner wall of one side of the extension ladder, the middle part of the wheel body is rotatably connected to the outer wall of the U-shaped roller, and one side of the outer wall of the wheel body is slidably connected to the inside of the groove.

[0009] More preferably, a plurality of electrically operated telescopic rods are provided between the two base plates.

[0010] More preferably, a triangular frame is provided between the base plate and the outer wall of the ladder.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] In this invention, when construction workers need to extend the height of the entire engineering ladder, they only need to first unscrew the locking pin from the internal screw hole of the sleeve ladder, and then use rollers to pull the extension ladder upwards, allowing it to slide upwards from the inside of the sleeve ladder, until the relative position between the sleeve ladder and the extension ladder is adjusted, until the telescopic top plate at the top of the extension ladder reaches the specified height. At the same time, the construction workers align the positions of the closest set of first and second pin holes within this range, and then re-pass the locking pin through the set of first and second pin holes in sequence, and screw it into the corresponding screw hole, thereby completing the position fixation between the sleeve ladder and the extension ladder and realizing the height adjustment of the engineering ladder.

[0013] In this invention, based on the actual construction area, an external controller drives an electric telescopic rod to extend its drive end horizontally, thereby pushing the base plate on one side of the drive end to move away from the other side. At the same time, the telescopic top plate on the top of the extension ladder is also driven to extend and retract until the space between the left and right side ladders and the extension ladder is the same as the space of the area to be constructed, at which point it can be stopped. Meanwhile, the construction personnel can manually rotate the gripping screws to screw them into the ground along the inner wall of the fixing screw plate, thus fixing the position of the engineering ladder. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a frontal cross-sectional view of the present invention.

[0016] Figure 3 This is a schematic diagram of the ladder structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the roller structure of this utility model.

[0018] In the diagram: 1. Grip screw; 2. Fixing screw plate; 3. Base plate; 301. Electric telescopic rod; 302. Triangular frame; 4. Ladder sleeve; 401. First pin hole; 402. Screw hole; 403. Slide groove; 5. Extension ladder; 501. Second pin hole; 6. Roller; 601. U-shaped roller; 602. Wheel body; 7. Telescopic top plate; 8. Locking pin; 9. Caster wheel. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1 to 4 This utility model provides a technical solution: an engineering ladder assembly that facilitates stretching and limiting, including a gripping screw 1, which is screwed into the inside of a fixing screw plate 2. A base plate 3 is welded to one side of the fixing screw plate 2. A sleeve ladder 4 is provided on the top of the base plate 3. An extension ladder 5 is slidably connected inside the sleeve ladder 4. Several rollers 6 are provided on one side of the extension ladder 5. A telescopic top plate 7 is provided on the top of the extension ladder 5. A locking pin 8 is screwed into the inside of the sleeve ladder 4. Universal wheels 9 are threaded to the four corners of the bottom of the base plate 3.

[0021] In this embodiment, as Figure 2 and Figure 3As shown, the outer surface of the ladder 4 has several first pin holes 401, and the inner surface has several screw holes 402. The inner wall of the closed part of the ladder 4 has a sliding groove 403. It should be noted that the construction workers push the entire ladder to the designated location using the casters 9 and fix the ladder to the ground using the grip screws 1. At this time, the construction workers can adjust the length of the ladder according to the actual height required. The specific operation is that the construction workers manually rotate the locking pin 8 to pull it out from the inside of the ladder 4, and then manually stretch the extension ladder 5 to make the extension ladder 5 slide upward, adjusting the relative position between the ladder 4 and the extension ladder 5 until the telescopic top plate 7 at the top of the extension ladder 5 reaches the designated height. At this time, the positions of a set of first pin holes 401 and second pin holes 501 within this position range are aligned. Then, the locking pin 8 is passed through the first pin holes 401 and the second pin holes 501 in sequence, and finally screwed into the screw hole 402 at the same horizontal position, thus completing the height limitation between the ladder 4 and the extension ladder 5.

[0022] In this embodiment, as Figure 2 and Figure 3 As shown, several second pin holes 501 are provided on both the left and right sides of the extension ladder 5. It should be noted that the extension ladder 5 and the sleeve ladder 4 are respectively provided with second pin holes 501 and first pin holes 401, and the size and spacing of the pin holes are equal. When the construction personnel need to extend the height of the entire engineering ladder, they only need to first unscrew the locking pin 8 from the internal screw hole 402 of the sleeve ladder 4, and then use the roller 6 to pull the extension ladder 5 upward, so that it slides upward from the inside of the sleeve ladder 4. Adjust the relative position between the sleeve ladder 4 and the extension ladder 5 until the telescopic top plate 7 at the top of the extension ladder 5 reaches the specified height. At the same time, the construction personnel align the positions of the closest set of first pin holes 401 and second pin holes 501 in this range, and re-pass the locking pin 8 through the set of first pin holes 401 and second pin holes 501 in sequence, and screw it into the corresponding screw hole 402, thereby completing the position fixation between the sleeve ladder 4 and the extension ladder 5 and realizing the height adjustment of the engineering ladder.

[0023] In this embodiment, as Figure 4As shown, roller 6 consists of a U-shaped roller 601 and a wheel body 602. One end of the U-shaped roller 601 is welded to the inner wall of one side of the extension ladder 5, and the middle of the wheel body 602 is rotatably connected to the outer wall of the shaft of the U-shaped roller 601. The outer wall of one side of the wheel body 602 is slidably connected to the inside of the slide groove 403. It should be noted that during the process of the construction personnel stretching the extension ladder 5, the wheel body 602 located on one side of the extension ladder 5 will roll around the outer wall of the shaft of the U-shaped roller 601 and roll against the inner wall of the slide groove 403, thereby assisting the entire extension ladder 5 to slide upward from the inside of the sleeve ladder 4. The setting of the wheel body 602 can reduce the friction between the sleeve ladder 4 and the extension ladder 5, making the movement process more stable. At the same time, it is easier for the construction personnel to stretch the extension ladder 5. The rolling friction generated by the roller 6 can reduce the wear between the sleeve ladder 4 and the extension ladder 5, thereby extending its service life.

[0024] In this embodiment, as Figure 1 and Figure 2 As shown, several electric telescopic rods 301 are provided between the two base plates 3. It should be noted that after the construction personnel push the entire engineering ladder to the designated location using the casters 9, the construction personnel in the mining area can drive the electric telescopic rods 301 through an external controller to extend the drive end horizontally according to the actual construction area. This pushes the base plate 3 on one side of the drive end to move away from the other base plate 3. At the same time, the telescopic top plate 7 on the top of the extension ladder 5 will also be driven to start extending and retracting until the space between the left and right side ladders 4 and the extension ladder 5 is the same as the space of the area to be constructed. Then it can stop. At the same time, the construction personnel can manually turn the gripping screws 1 to screw them into the ground deep along the inner wall of the fixing screw plate 2 to complete the position fixation of the engineering ladder.

[0025] In this embodiment, as Figure 1 and Figure 2 As shown, a triangular frame 302 is provided between the base plate 3 and the outer wall of the ladder 4. It should be noted that the ladder 4 and the base plate 3 are connected by a threaded connection. The ladder 4 itself is set perpendicular to the base plate 3. When construction workers use the engineering ladder of this utility model, they need to push and fix the entire engineering ladder in the designated position in the mining area. In the mining area, there are many debris on the ground, and the overall surface is uneven. Therefore, when construction workers use the engineering ladder, they still need to pay attention to its stability. Therefore, in this utility model, a triangular frame 302 is provided between the base plate 3 and the outer wall of the ladder 4. The triangular frame 302 provides an additional support force to the ladder 4. Through its triangular-based frame, the ladder 4 can be more stable during use, ensuring that the ladder 4 will not overturn or collapse.

[0026] The method of use and advantages of this utility model: This engineering ladder assembly, which facilitates stretching and limiting, operates as follows:

[0027] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the construction workers first need to push the entire engineering ladder to the designated location using the casters 9. Then, according to the actual construction area, the construction workers can drive the electric telescopic rod 301 through the external controller to move the base plate 3 on one side of its drive end away from the other side base plate 3, so that the telescopic top plate 7 is also driven to begin telescopic movement until the space between the left and right side ladders 4 and extension ladders 5 is the same as the space of the area to be constructed, then it can be stopped. At the same time, the construction workers can manually turn the ground screw 1 to screw it into the ground deep along the inner wall of the fixing screw plate 2, thus completing the positioning of the engineering ladder. Construction workers can first unscrew the locking pin 8 from the internal screw hole 402 of the ladder 4, and then use the roller 6 to pull the extension ladder 5 upward, so that it slides upward from the inside of the ladder 4. Adjust the relative position between the ladder 4 and the extension ladder 5 until the telescopic top plate 7 at the top of the extension ladder 5 reaches the specified height. At the same time, the construction workers align the positions of the closest set of first pin holes 401 and second pin holes 501 in this range, and re-pass the locking pin 8 through the set of first pin holes 401 and second pin holes 501 in sequence, and screw it into the corresponding screw hole 402, thereby completing the position fixation between the ladder 4 and the extension ladder 5 and realizing the height adjustment of the engineering ladder.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An engineering ladder assembly for easy tension limiting, including a gripping screw (1), characterized in that: The gripping screw (1) is screwed into the inside of the fixing screw plate (2). A base plate (3) is welded to one side of the fixing screw plate (2). A ladder (4) is provided on the top of the base plate (3). An extension ladder (5) is slidably connected inside the ladder (4). Several rollers (6) are provided on one side of the extension ladder (5). A telescopic top plate (7) is provided on the top of the extension ladder (5). A locking pin (8) is screwed into the inside of the ladder (4). Universal wheels (9) are threaded to the four corners of the bottom of the base plate (3).

2. The engineering ladder assembly for easy tension limiting according to claim 1, characterized in that: The outer surface of the ladder (4) is provided with a number of first pin holes (401), the inner surface of the ladder (4) is provided with a number of screw holes (402), and the inner wall of the closed part of the ladder (4) is provided with a sliding groove (403).

3. The engineering ladder assembly for easy tension limiting according to claim 1, characterized in that: The extension ladder (5) has several second pin holes (501) on both its left and right sides.

4. The engineering ladder assembly for easy tension limiting according to claim 2, characterized in that: The roller (6) consists of a U-shaped roller (601) and a wheel body (602). One end of the U-shaped roller (601) is welded to the inner wall of one side of the extension ladder (5). The middle part of the wheel body (602) is rotatably connected to the outer wall of the shaft of the U-shaped roller (601). The outer wall of one side of the wheel body (602) is slidably connected to the inside of the groove (403).

5. The engineering ladder assembly for easy tension limiting according to claim 1, characterized in that: Several electric telescopic rods (301) are provided between the two base plates (3).

6. The engineering ladder assembly for easy tension limiting according to claim 1, characterized in that: A triangular frame (302) is provided between the base plate (3) and the outer wall of the ladder (4).

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