Crawling ladder structure of elevator shaft

Abstract

The utility model relates to an elevator shaft ladder stand structure which comprises a main ladder stand frame and an auxiliary ladder stand frame, and the auxiliary ladder stand frame is movably installed on the main ladder stand frame. According to the elevator shaft ladder stand structure, the locking mechanism is arranged, an adjusting hand wheel is rotated firstly, the transmission rod can stably rotate through cooperation of the adjusting hand wheel, a bearing and the transmission rod, and then the gear and the L-shaped toothed plates are arranged, so that when the transmission rod stably rotates, the gear can rotate stably through the meshing relation between the gear and the two L-shaped toothed plates, and the transmission rod can rotate stably. According to the mechanism, the two L-shaped toothed plates are driven to move, the L-shaped toothed plates can be effectively limited by arranging the guide rods and the guide sliding blocks, and finally the clamping bolts can be clamped into the positioning plates on the auxiliary ladder stand frame to achieve the effect of locking the auxiliary ladder stand frame, so that the mechanism not only can effectively store the auxiliary ladder stand frame, but also can lock the auxiliary ladder stand frame. And meanwhile, stable storage can be provided for the auxiliary ladder stand frame, so that the phenomenon that the auxiliary ladder stand frame falls off is avoided.

Description

Technical Field

[0001] This utility model relates to the field of elevator shaft climbing technology, specifically an elevator shaft climbing structure. Background Technology

[0002] Elevator shaft ladders are an auxiliary facility in elevator shafts, mainly used to facilitate personnel access to the elevator shaft for maintenance and repair work. Ladders are usually made of iron chains or ropes, and are straight up and down, making it easy for personnel to move up and down.

[0003] Currently, there are many types of elevator shaft ladders. For example, there is an elevator shaft ladder with Chinese patent number CN201921863582.0. This patent includes a ladder body and handrail assemblies on both sides of the ladder body. The handrail assembly includes a rotating rod and a handrail bar, which are connected by a connecting rod. The rotating rod is rotatably connected to the ladder body. A hook is provided at the top of the handrail bar, which is rotatably connected to the handrail bar. A first fixing plate is provided on the elevator shaft wall to cooperate with the hook and fix the hook. The elevator shaft ladder involved in this utility model is simple to operate and highly practical. When not in use, it can be stored without affecting the normal operation of the elevator. When in use, it can provide a handrail assembly along the length of the ladder body, improving the safety factor of workers when climbing up and down the ladder and ensuring the personal safety of workers. However, because the height of this ladder is fixed, its use scenarios are easily limited. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an elevator shaft climbing structure with the advantage of freely adjustable climbing height, thus solving the problem of poor applicability.

[0005] To achieve the aforementioned goal of freely adjusting the height of the ladder, this utility model provides the following technical solution: an elevator shaft ladder structure, including a main ladder frame and an auxiliary ladder frame, wherein the auxiliary ladder frame is movably installed on the main ladder frame, a locking mechanism is provided inside the main ladder frame, two positioning plates extending into the interior of the main ladder frame are fixedly installed on the top of the auxiliary ladder frame, and limiting rods extending into the exterior of the main ladder frame are fixedly installed on both the left and right sides of the auxiliary ladder frame;

[0006] The locking mechanism includes bearings and guide rods. Two bearings and two guide rods are fixedly installed inside the main climbing ladder frame. A transmission rod extending to the front side of the main climbing ladder frame is fixedly connected to the inner wall of the two bearings. A gear is fixedly installed on the transmission rod. An adjusting handwheel is fixedly connected to one end of the transmission rod extending to the front side of the main climbing ladder frame. A set of guide sliders is slidably connected to each of the two guide rods. An L-shaped toothed plate is fixedly connected to each set of guide sliders. A bolt extending into the positioning plate is fixedly installed on the L-shaped toothed plate.

[0007] Furthermore, each set of guide sliders consists of two, and the upper and lower ends of the gear are respectively connected to two L-shaped toothed plates, and the connection between the two is an meshing connection. Both positioning plates are provided with insertion holes that are compatible with the bolts.

[0008] Furthermore, the top of the main climbing ladder frame has two positioning holes that are compatible with the positioning plate, and the left and right sides of the main climbing ladder frame are provided with limiting grooves that are compatible with the limiting rods, and the inner wall of the limiting grooves is slidably connected to the outer wall of the limiting rods.

[0009] Furthermore, a plurality of first climbing rods are fixedly installed on the main climbing ladder frame and located in front of the secondary climbing ladder frame, and a plurality of second climbing rods are fixedly installed on the secondary climbing ladder frame.

[0010] Furthermore, two first fixing frames are fixedly installed on the top of the main climbing ladder frame, and second fixing frames are fixedly installed on both the left and right sides of the main climbing ladder frame.

[0011] Furthermore, two resistance pads are fixedly installed at the bottom of the auxiliary climbing ladder frame.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] 1. This elevator shaft climbing ladder structure, through the setting of a locking mechanism, firstly, rotates the adjusting handwheel. By adjusting the coordination of the handwheel, bearings, and transmission rod, the transmission rod can achieve stable rotation. Then, by setting gears and L-shaped toothed plates, while the transmission rod rotates stably, the gears can drive the two L-shaped toothed plates to move by meshing with them. Next, by setting guide rods and guide sliders, the L-shaped toothed plates can be effectively limited. Finally, by setting bolts, the bolts can be locked into the positioning plates on the auxiliary climbing ladder frame to achieve the function of locking the auxiliary climbing ladder frame. Thus, this mechanism can not only effectively store the auxiliary climbing ladder frame, but also provide it with stable storage, so that the auxiliary climbing ladder frame will not come out.

[0014] 2. The elevator shaft climbing ladder structure, by setting a positioning plate and a limiting rod, allows the auxiliary climbing ladder frame to extend and retract freely inside the main climbing ladder frame. This design can effectively improve the applicability of the climbing ladder. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a front view of the structure of this utility model;

[0017] Figure 3 This is a front sectional view of the structure of this utility model;

[0018] Figure 4 For practical purposes Figure 3 Enlarged view of point A in the middle;

[0019] Figure 5 This is a cross-sectional view of the location of the locking mechanism at the top of the main ladder frame in this utility model.

[0020] In the diagram: 1. Main climbing ladder frame; 2. Secondary climbing ladder frame; 201. Positioning plate; 202. Limiting rod; 3. Locking mechanism; 301. Bearing; 302. Guide rod; 303. Transmission rod; 304. Gear; 305. Adjusting handwheel; 306. Guide slider; 307. L-shaped toothed plate; 308. Clamp; 4. First climbing rod; 5. Second climbing rod; 6. First fixing frame; 7. Second fixing frame; 8. Resistance pad. Detailed Implementation

[0021] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-5 An elevator shaft climbing structure in this embodiment includes a main climbing frame 1 and an auxiliary climbing frame 2. The auxiliary climbing frame 2 is movably installed inside the main climbing frame 1 and can move up and down inside the main climbing frame 1. The main climbing frame 1 is symmetrically provided with vertical limiting grooves on its left and right sides, and the auxiliary climbing frame 2 is provided with limiting rods 202 on both sides of its top. The limiting rods 202 are movably fitted in the vertical limiting grooves. The top of the main climbing frame 1 is provided with a locking mechanism 3.

[0023] See Figure 4 and Figure 5The locking mechanism 3 includes bearings 301 and guide rods 302. Two bearings 301 and two guide rods 302 are fixedly installed inside the main ladder frame 1. A transmission rod 303 extending to the front of the main ladder frame 1 is fixedly connected to the inner wall of the two bearings 301. A gear 304 is fixedly installed on the transmission rod 303. An adjusting handwheel 305 is fixedly connected to one end of the transmission rod 303 extending to the front of the main ladder frame 1. First, rotating the adjusting handwheel 305 allows the transmission rod 303 to rotate stably through the cooperation of the adjusting handwheel 305, bearings 301, and transmission rod 303. A set of guide sliders 306 is slidably connected to each of the two guide rods 302, with two guide sliders in each set. An L-shaped toothed plate 307 is fixedly connected to each guide slider 306. The upper and lower ends of the gear 304 are respectively connected to the two L-shaped toothed plates 307. The connection relationship is an meshing connection. A latch 308 is fixedly installed on the L-shaped toothed plate 307, and the two positioning plates 201 are provided with insertion holes that are compatible with the latch 308. Then, by setting the gear 304 and the L-shaped toothed plate 307, the transmission rod 303 can rotate stably while the gear 304 can drive the two L-shaped toothed plates 307 to move by meshing with them. By setting the guide rod 302 and the guide slider 306, the L-shaped toothed plate 307 can be effectively limited to ensure that its movement direction is correct and smooth. Finally, by setting the latch 308, the latch 308 can be locked into the positioning plate 201 on the auxiliary climbing ladder frame 2 to lock the auxiliary climbing ladder frame 2. Thus, this mechanism can not only effectively store the auxiliary climbing ladder frame 2, but also provide it with stable storage, so that the auxiliary climbing ladder frame 2 will not fall out.

[0024] In the implementation of the case, two positioning plates 201 extending into the interior of the main ladder frame 1 are fixedly installed on the top of the auxiliary ladder frame 2. The top of the main ladder frame 1 has two positioning holes that are compatible with the positioning plates 201. The positioning plates 201 enable the auxiliary ladder frame 2 to be positioned in a suitable position, which can effectively reduce deviations and damage caused by vibration and other factors during operation. Limiting rods 202 extending into the exterior of the main ladder frame 1 are fixedly installed on both the left and right sides of the auxiliary ladder frame 2. Limiting grooves that are compatible with the limiting rods 202 are opened on both the left and right sides of the main ladder frame 1, and the inner wall of the limiting groove is slidably connected to the outer wall of the limiting rod 202. The limiting rods 202 can effectively reduce excessive stretching or compression of the auxiliary ladder frame 2 during the collection or storage process. In addition, through the cooperation of the positioning plates 201 and the limiting rods 202, the auxiliary ladder frame 2 can move freely up and down inside the main ladder frame 1. This design can effectively improve the applicability of the ladder.

[0025] In the implementation of the case, multiple first climbing poles 4 are fixedly installed on the main climbing ladder frame 1 and in front of the auxiliary climbing ladder frame 2, and multiple second climbing poles 5 are fixedly installed on the auxiliary climbing ladder frame 2. The first climbing poles 4 and the second climbing poles 5 are both made of high-strength, high-oxidation-resistant, lightweight and durable aluminum alloy. These materials have high mechanical strength and can withstand lateral, longitudinal and inclined forces to ensure the safety of the staff.

[0026] In the implementation of the case, two first fixing frames 6 are fixedly installed on the top of the main climbing ladder frame 1, and second fixing frames 7 are fixedly installed on both the left and right sides of the main climbing ladder frame 1. The first fixing frames 6 are mainly used to fix the elevator shaft opening, while the second fixing frames 7 are used to fix the elevator shaft wall. This design can effectively ensure the stability of the main climbing ladder frame 1.

[0027] In the implementation of the case, two resistance pads 8 are fixedly installed at the bottom of the auxiliary ladder frame 2. These resistance pads 8 increase the friction between the auxiliary ladder frame 2 and the ground, preventing accidents caused by the auxiliary ladder frame 2 sliding during use.

[0028] When implementing this procedure, please follow these steps:

[0029] 1) First, rotate the adjusting handwheel 305. By adjusting the coordination of the handwheel 305, bearing 301 and transmission rod 303, the transmission rod 303 can be made to rotate stably.

[0030] 2) Then, by setting gear 304 and L-shaped toothed plate 307, the transmission rod 303 can rotate stably while gear 304 can drive the two L-shaped toothed plates 307 to move by meshing with them.

[0031] 3) By setting the guide rod 302 and the guide slider 306, the L-shaped toothed plate 307 can be used to limit the movement and ensure that the movement direction is correct. The bolt 308 can be correctly inserted into the socket on the positioning plate 201 to lock the auxiliary climbing ladder frame 2 to the main climbing ladder frame 1, or the bolt 308 can be removed from the socket to unlock the auxiliary climbing ladder frame 2. At this time, the auxiliary climbing ladder frame 2 can be pulled down from the bottom of the main climbing ladder frame 1 to extend the climbing ladder frame.

[0032] In summary, this elevator shaft climbing structure, through the installation of a locking mechanism 3, firstly, by rotating the adjusting handwheel 305, the transmission rod 303 can achieve stable rotation by adjusting the cooperation between the handwheel 305, bearing 301, and transmission rod 303. By setting up a gear 304 and L-shaped toothed plates 307, while the transmission rod 303 rotates stably, the gear 304 can move the two L-shaped toothed plates 307 by meshing with them. Furthermore, by setting up a guide rod 302 and a guide slider 306, translational or sliding phenomena of the L-shaped toothed plates 307 during movement can be effectively prevented. The mechanism provides limiting and fixing functions, and finally, by setting a latch 308, which can be inserted into the positioning plate 201 on the auxiliary climbing ladder 2, the auxiliary climbing ladder 2 is locked. Thus, the mechanism can not only effectively store the auxiliary climbing ladder 2, but also provide it with stable storage, so that the auxiliary climbing ladder 2 will not come out. By setting the positioning plate 201 and the limiting rod 202, the auxiliary climbing ladder 2 can freely extend and retract inside the main climbing ladder 1. This design can effectively improve the applicability of the climbing ladder and solve the problem that the fixed height of the climbing ladder makes the usage scenarios easily limited.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An elevator shaft climbing ladder structure, comprising a main climbing ladder frame (1) and an auxiliary climbing ladder frame (2), characterized in that: A secondary climbing ladder (2) is movably installed on the main climbing ladder (1). A locking mechanism (3) is provided inside the main climbing ladder (1). Two positioning plates (201) extending into the main climbing ladder (1) are fixedly installed on the top of the secondary climbing ladder (2). Limiting rods (202) extending into the outside of the main climbing ladder (1) are fixedly installed on both the left and right sides of the secondary climbing ladder (2). The locking mechanism (3) includes a bearing (301) and a guide rod (302). Two bearings (301) and two guide rods (302) are fixedly installed inside the main climbing ladder frame (1). A transmission rod (303) extending to the front side of the main climbing ladder frame (1) is fixedly connected to the inner wall of the two bearings (301). A gear (304) is fixedly installed on the transmission rod (303). An adjusting handwheel (305) is fixedly connected to one end of the transmission rod (303) extending to the front side of the main climbing ladder frame (1). A set of guide sliders (306) is slidably connected to each of the two guide rods (302). An L-shaped toothed plate (307) is fixedly connected to each set of guide sliders (306). A bolt (308) extending to the inside of the positioning plate (201) is fixedly installed on the L-shaped toothed plate (307).

2. The elevator shaft ladder structure according to claim 1, characterized in that: The number of guide sliders (306) in each group is two. The upper and lower ends of the gear (304) are respectively connected to two L-shaped toothed plates (307), and the connection between the two is an meshing connection. Both positioning plates (201) are provided with insertion holes that are compatible with the bolts (308).

3. The elevator shaft ladder structure according to claim 1, characterized in that: The top of the main climbing ladder frame (1) has two positioning holes that are compatible with the positioning plate (201). The left and right sides of the main climbing ladder frame (1) are provided with limiting grooves that are compatible with the limiting rod (202), and the inner wall of the limiting groove is slidably connected to the outer wall of the limiting rod (202).

4. The elevator shaft ladder structure according to claim 1, characterized in that: Multiple first climbing rods (4) are fixedly installed on the main climbing ladder frame (1) and located in front of the secondary climbing ladder frame (2), and multiple second climbing rods (5) are fixedly installed on the secondary climbing ladder frame (2).

5. The elevator shaft ladder structure according to claim 1, characterized in that: Two first fixing frames (6) are fixedly installed on the top of the main climbing ladder frame (1), and second fixing frames (7) are fixedly installed on both the left and right sides of the main climbing ladder frame (1).

6. The elevator shaft ladder structure according to claim 1, characterized in that: Two resistance pads (8) are fixedly installed at the bottom of the auxiliary climbing ladder frame (2).

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