Pit overturning ladder stand

Abstract

The utility model discloses a pit overturning ladder stand. The pit overturning ladder stand comprises a main body, a movable assembly and a fixed part, the fixed part is movably connected with the main body through a movable assembly; the main body comprises vertical rods and steps, and the steps are uniformly distributed on the vertical rods; the movable assembly comprises a connecting rod and a rotating shaft, one end of the connecting rod is movably connected with the vertical rod, and the other end of the connecting rod is fixedly connected with the rotating shaft; the fixing part comprises a connecting plate and a trigger switch; a trigger part matched with the trigger switch is arranged on the side face of the rotating shaft and penetrates through the connecting plate to be movably connected with the fixing part. The rotating shaft drives the trigger part to rotate to trigger the trigger switch. The movable assembly and the fixed part are arranged, the steps are movably connected with the connecting plate through the movable assembly, the rotating shaft drives the trigger part to rotate so as to trigger the trigger switch, and the safety performance and the user experience of the pit overturning ladder stand are improved; and by arranging the connecting rods and the rotating shafts, the two ends of the connecting rods are movably connected with the vertical rods and the connecting plates correspondingly, and the safety and stability of the pit overturning ladder stand are improved.

Description

Technical Field

[0001] This utility model relates to the field of elevator equipment technology, and in particular to a pit-turning ladder. Background Technology

[0002] According to the new elevator design standards, there are relevant requirements for ladders. Currently, ladders are typically fixed to the side wall of the pit, allowing maintenance personnel to access the pit for repairs. However, to save space within the pit and avoid disrupting normal elevator operation, the ladder's tread width often fails to meet the new standards. To accommodate installation in confined spaces, a reversible ladder is needed, which can be pulled down when in use. However, existing reversible ladders cannot determine whether the elevator is in operation, and cannot guarantee that the elevator will not collide with the ladder, thus compromising elevator safety. Summary of the Invention

[0003] To address the aforementioned issues, the present invention aims to provide a pit-turning ladder that, by incorporating a triggering unit and a trigger switch, ensures that the elevator will not collide with the ladder, thereby improving the safety performance and user experience of the pit-turning ladder.

[0004] The technical solution adopted by this utility model to solve its problem is:

[0005] A pit-turning ladder includes: a main body, a movable component, and a fixed part; the fixed part is movably connected to the main body through the movable component; the main body includes vertical rods and steps, the steps being evenly distributed on the vertical rods; the movable component includes a connecting rod and a rotating shaft, one end of the connecting rod being movably connected to the vertical rod, and the other end of the connecting rod being fixedly connected to the rotating shaft; the fixed part includes a connecting plate and a trigger switch; the side of the rotating shaft is provided with a trigger part that cooperates with the trigger switch, the trigger part passing through the connecting plate and being movably connected to the fixed part; the rotating shaft drives the trigger part to rotate, thereby triggering the trigger switch.

[0006] The aforementioned pit tilting ladder has at least the following beneficial effects: By setting up movable components and fixed parts, the steps are movably connected to the connecting plate through the movable components, and the rotating shaft drives the trigger part to rotate to trigger the trigger switch, ensuring that the elevator will not collide with the steps, thereby improving the safety performance and user experience of the pit tilting ladder; by setting up connecting rods and rotating shafts, the two ends of the connecting rods are movably connected to the vertical rod and the connecting plate respectively, ensuring the connection stability between the movable components and the main body and the fixed part, avoiding the situation of the main body becoming loose, thereby improving the safety and stability of the pit tilting ladder.

[0007] Furthermore, the trigger part has a circular cross-section and a notch. This notch ensures that the trigger part can accurately open or close the trigger switch during shaft rotation, preventing the elevator from colliding with the steps and improving the safety performance of the pit-turning ladder.

[0008] Furthermore, when the connecting rod is parallel to the horizontal plane, the notch faces the trigger switch. This structure ensures that when the vertical rod and the steps are lowered, the notch faces the trigger switch, ensuring that the trigger switch is in the closed state, thereby preventing the elevator from colliding with the steps.

[0009] Furthermore, the connecting plate has fixing holes on the side away from the main body for securing the connecting plate. By providing fixing holes, the main body and moving components can be easily fixed to the side wall of the elevator pit by inserting bolts into the fixing holes, thus improving the stability of the pit-turning ladder.

[0010] Furthermore, a limiting plate that cooperates with the vertical rod is provided on the side of the connecting plate near the main body. By setting the limiting plate, it is ensured that the limiting plate can stably fit the vertical rod during the folding process of the main body, avoiding excessive displacement of the main body and improving the service life of the pit tilting ladder.

[0011] Furthermore, the limiting plate is equipped with a buffer block that acts as a buffer. By setting the buffer block, it is ensured that the limiting plate can stably fit against the vertical bar, avoiding damage caused by excessive force on the limiting plate and improving the structural stability of the pit tilting ladder.

[0012] Furthermore, connecting holes are provided between adjacent steps, and the connecting rod is movably connected to the connecting holes via pins. By providing connecting holes, the connecting rod can be movably connected to the vertical rod by inserting the pin into the connecting holes, thereby improving the structural stability of the pit tilting ladder.

[0013] Furthermore, the connecting holes are evenly distributed on the vertical rod. This structure facilitates flexible adjustment of the connection position between the connecting rod and the vertical rod, improving the installation convenience and compatibility of the pit tilting ladder.

[0014] Furthermore, the fixing parts are respectively installed at the upper and lower ends of the main body via the movable components. This structure ensures that the upper and lower ends of the main body can be stably fixed to the side wall of the elevator pit via the movable components, preventing the main body from shifting position and ensuring the structural stability of the pit-turning ladder.

[0015] Furthermore, the height of the connecting rod gradually decreases along the direction closer to the main body. This structure ensures the structural strength of the connecting rod and prevents deformation of the moving components during operation, thus ensuring the safety of the pit tilting ladder.

[0016] The beneficial effects of the aforementioned pit tilting ladder are as follows: By setting up movable components and fixed parts, the steps are movably connected to the connecting plate through the movable components, and the rotating shaft drives the trigger part to rotate, thereby triggering the trigger switch and ensuring that the elevator will not collide with the steps, thus improving the safety performance and user experience of the pit tilting ladder; by setting up connecting rods and rotating shafts, with the two ends of the connecting rods movably connected to the vertical rod and the connecting plate respectively, the connection stability between the movable components and the main body and fixed parts is ensured, preventing the main body from becoming loose, thus improving the safety and stability of the pit tilting ladder; by setting up notches, it is ensured that the trigger part can... Precisely opening or closing the trigger switch ensures the elevator will not collide with the steps, improving the safety performance of the pit tilting ladder; the fixing holes facilitate the main body and moving components to be fixed to the side wall of the elevator pit by inserting bolts into the fixing holes, improving the stability of the pit tilting ladder; the limit plate ensures that the limit plate can stably fit against the vertical rod during the folding process of the main body, avoiding excessive displacement of the main body and extending the service life of the pit tilting ladder; the connecting holes allow the connecting rod to be movably connected to the vertical rod by inserting pins into the connecting holes, improving the structural stability of the pit tilting ladder.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a schematic diagram of the structure of a pit-turning ladder in a closed state according to an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of a pit-turning ladder in the open state according to an embodiment of the present invention;

[0021] Figure 3 This is a side view of a pit-turning ladder in a closed state according to an embodiment of the present invention;

[0022] Figure 4 This is a side view of a pit-turning ladder in the open state, according to an embodiment of the present invention. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0024] Reference Figures 1 to 4 This utility model provides a pit-turning ladder, including: a main body 100, a movable component 200, and a fixed part 300; the fixed part 300 is movably connected to the main body 100 through the movable component 200; the main body 100 includes a vertical rod 110 and steps 120, with the steps 120 evenly distributed on the vertical rod 110; the movable component 200 includes a connecting rod 210 and a rotating shaft 220, with one end of the connecting rod 210 movably connected to the vertical rod 110 and the other end of the connecting rod 210 fixedly connected to the rotating shaft 220; the fixed part 300 includes a connecting plate 310 and a trigger switch 320; one side of the rotating shaft 220 is provided with a trigger part 221 that cooperates with the trigger switch 320, and the trigger part 221 passes through the connecting plate 310 and is movably connected to the fixed part 300; the rotating shaft 220 drives the trigger part 221 to rotate, thereby triggering the trigger switch 320.

[0025] By setting up the movable component 200 and the fixed part 300, the step 120 is movably connected to the connecting plate 310 through the movable component 200. The rotating shaft 220 drives the trigger part 221 to rotate, thereby triggering the trigger switch 320, ensuring that the elevator will not collide with the step 120, thus improving the safety performance and user experience of the pit tilting ladder. By setting up the connecting rod 210 and the rotating shaft 220, the two ends of the connecting rod 210 are movably connected to the vertical rod 110 and the connecting plate 310 respectively, ensuring the connection stability between the movable component 200, the main body 100 and the fixed part 300, preventing the main body 100 from becoming loose, and improving the safety and stability of the pit tilting ladder.

[0026] In another embodiment, the trigger part 221 has a circular cross-section and a notch 222. By providing the notch 222, it is ensured that the trigger part 221 can accurately open or close the trigger switch 320 during the rotation of the rotating shaft 220, ensuring that the elevator will not collide with the steps 120 and improving the safety performance of the pit tilting ladder.

[0027] In another embodiment, when the connecting rod 210 is parallel to the horizontal plane, the notch 222 is directly opposite the trigger switch 320. This structure ensures that when the vertical rod 110 and the step 120 are lowered, the notch 222 is directly opposite the trigger switch 320, ensuring that the trigger switch 320 is in the closed state, thereby ensuring that the elevator will not collide with the step 120.

[0028] In another embodiment, the connecting plate 310 has a fixing hole 311 on the side away from the main body 100 for fixing the connecting plate 310. By providing the fixing hole 311, the main body 100 and the movable component 200 can be fixed to the side wall of the elevator pit by inserting bolts into the fixing hole 311, thereby improving the stability of the pit tilting ladder.

[0029] In another embodiment, the connecting plate 310 is provided with a limiting plate 312 that cooperates with the vertical rod 110 on the side near the main body 100. By setting the limiting plate 312, it is ensured that the limiting plate 312 can stably fit the vertical rod 110 during the folding process of the main body 100, avoiding excessive displacement of the main body 100 and improving the service life of the pit tilting ladder.

[0030] In another embodiment, the limiting plate 312 is provided with a buffer block 313 for buffering. By setting the buffer block 313, it is ensured that the limiting plate 312 can stably fit against the vertical bar 110, avoiding damage caused by excessive force on the limiting plate 312, and improving the structural stability of the pit tilting ladder.

[0031] In another embodiment, a connecting hole 130 is provided between adjacent steps 120, and the connecting rod 210 is movably connected to the connecting hole 130 via a pin 140. By providing the connecting hole 130, the connecting rod 210 can be movably connected to the vertical rod 110 by inserting the pin 140 into the connecting hole 130, thereby improving the structural stability of the pit tilting ladder.

[0032] In another embodiment, the connecting holes 130 are evenly distributed on the vertical rod 110. This structure facilitates flexible adjustment of the connection position between the connecting rod 210 and the vertical rod 110, improving the installation convenience and compatibility of the pit tilting ladder.

[0033] In another embodiment, the fixing part 300 is respectively installed on the upper and lower ends of the main body 100 via the movable component 200. This structure ensures that the upper and lower ends of the main body 100 can be stably fixed to the side wall of the elevator pit via the movable component 200, avoiding positional displacement of the main body 100 and ensuring the structural stability of the pit tilting ladder.

[0034] In another embodiment, the height of the connecting rod 210 gradually decreases along the direction close to the main body 100. This structure ensures the structural strength of the connecting rod 210 and prevents the movable component 200 from deforming during movement, thus affecting the safety of the pit tilting ladder.

[0035] The working principle of this utility model will be further explained below.

[0036] During installation, firstly, select the appropriate size of vertical rod 110 and step 120 according to the elevator size and pit depth. Connect the connecting rod 210 to the connecting hole 130 via the pin 140, insert the rotating shaft 220 into the other side of the connecting rod 210, and connect the rotating shaft 220 and the connecting plate 310. Install the trigger part 221 at one end of the rotating shaft 220. Then, install the trigger switch 320 below the trigger part 221 so that the trigger switch 320 is triggered when the rotating shaft 220 drives the trigger part 221 to rotate. Next, fix the connecting plate 310 in the elevator pit by inserting bolts into the fixing hole 311. Finally, connect the trigger switch 320 to the elevator's maintenance circuit to complete the installation of the pit tilting ladder.

[0037] During operation, when the elevator is running normally, the vertical rod 110 and the step 120 are in contact with the limiting plate 312, and the trigger switch 320 is pressed on the part of the trigger part 221 other than the notch 222. Since the trigger switch 320 is integrated into the elevator's maintenance circuit, when the trigger switch 320 is pressed, the elevator's working circuit is activated, and the elevator can operate normally. At this time, the pit tilting ladder is in the position of... Figure 1 and Figure 3 The elevator is in the closed state shown. Because the main body 100 is attached to the connecting plate 310, the space occupied by the pit tilting ladder is effectively saved. When inspection or maintenance work is required at the bottom of the elevator pit, when the elevator is in the maintenance position, the vertical rod 110 and the connecting plate 310 are rotated around the connecting rod 210 until the connecting rod 210 is parallel to the horizontal plane, and the notch 222 is directly opposite the trigger switch 320. At this time, maintenance personnel can reach the pit to perform maintenance work through the downward-extending vertical rod 110 and the steps 120. Because the trigger part 221 is no longer attached to the trigger switch 320, the elevator's working circuit is shut off, and the elevator cannot operate. At this time, the pit tilting ladder is in the closed state shown. Figure 2 and Figure 4 The elevator is in the open position as shown. Since the elevator is not operational, this ensures that staff can safely move and perform maintenance operations within the pit, improving staff safety during maintenance.

[0038] As can be seen from the above description, the pit tilting ladder of this utility model, by setting up a movable component 200 and a fixed part 300, allows the steps 120 to be movably connected to the connecting plate 310 through the movable component 200. The rotating shaft 220 drives the trigger part 221 to rotate, thereby triggering the trigger switch 320, ensuring that the elevator will not collide with the steps 120, thus improving the safety performance and user experience of the pit tilting ladder. By setting up a connecting rod 210 and a rotating shaft 220, with both ends of the connecting rod 210 movably connected to the vertical rod 110 and the connecting plate 310 respectively, the connection stability between the movable component 200 and the main body 100 and the fixed part 300 is ensured, preventing the main body 100 from becoming loose, thus improving the safety and stability of the pit tilting ladder. By setting a notch 222, the rotating shaft 220 is ensured to rotate. During the process, the triggering part 221 can accurately open or close the trigger switch 320 to ensure that the elevator will not collide with the steps 120, thereby improving the safety performance of the pit tilting ladder; by setting the fixing hole 311, the main body 100 and the movable component 200 can be fixed to the side wall of the elevator pit by inserting bolts into the fixing hole 311, thereby improving the stability of the pit tilting ladder; by setting the limiting plate 312, it is ensured that the limiting plate 312 can stably fit the vertical rod 110 during the folding process of the main body 100, avoiding excessive displacement of the main body 100 and improving the service life of the pit tilting ladder; by setting the connecting hole 130, the connecting rod 210 can be movably connected to the vertical rod 110 by inserting the pin 140 into the connecting hole 130, thereby improving the structural stability of the pit tilting ladder.

[0039] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A pit inversion cat ladder characterized by, The utility model relates to a ladder, which comprises a main body, a movable assembly and a fixed part, the fixed part is movably connected with the main body through the movable assembly, the main body comprises a vertical rod and steps, the steps are evenly distributed on the vertical rod, the movable assembly comprises a connecting rod and a rotating shaft, one end of the connecting rod is movably connected with the vertical rod, the other end of the connecting rod is fixedly connected with the rotating shaft, the fixed part comprises a connecting plate and a trigger switch, the side of the rotating shaft is provided with a trigger part matched with the trigger switch, the trigger part is movably connected with the fixed part through the connecting plate, the rotating shaft drives the trigger part to rotate to trigger the trigger switch. The cross section of the trigger part is circular, and the trigger part is provided with a notch.

2. A pit inversion cat ladder according to claim 1, wherein, When the connecting rod is parallel to the horizontal plane, the notch is opposite to the trigger switch.

3. A pit inversion cat ladder according to claim 2, wherein, The side of the connecting plate away from the main body is provided with a fixing hole for fixing the connecting plate.

4. A pit inversion cat ladder according to claim 1, wherein, The side of the connecting plate close to the main body is provided with a limiting plate matched with the vertical rod.

5. A pit inversion cat ladder according to claim 4, wherein, The limiting plate is provided with a buffer block for buffering.

6. A pit inversion cat ladder according to claim 5, wherein, Adjacent steps are provided with connecting holes, and the connecting rod is movably connected with the connecting holes through a bolt.

7. A pit inversion cat ladder according to claim 1, wherein, The connecting holes are evenly distributed on the vertical rod.

8. A pit inversion cat ladder according to claim 7, wherein, The fixed part is respectively installed on the upper and lower ends of the main body through the movable assembly.

9. A pit inversion cat ladder according to claim 1, wherein, The height of the connecting rod gradually decreases along the direction close to the main body.

10. A pit inversion cat ladder according to claim 1, wherein, ​

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