Crawling ladder box connecting component
By designing the ladder box connection components, the combination of the center plate assembly, clamp assembly, locking mechanism and limiting mechanism is used to solve the problems of uneven stress distribution and safety risks caused by the existing welding connection methods, and achieve higher structural stability and safety.
Patent Information
- Application Number
- CN202421035112.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-13
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-05-13
AI Technical Summary
During the installation process of existing safety ladder boxes, the welding connection method causes the tension to be concentrated on the bolts and welding points, causing uneven force distribution, affecting the stability of the structure, and may generate residual stress to adversely affect the performance of the steel, increasing safety risks.
A ladder box connecting member is designed, including a central plate assembly, a clamp assembly, a locking mechanism and a limiting mechanism. The steel pipe is clamped through the clamp assembly. The locking mechanism and a limiting mechanism ensure the stability and rigidity of the structure to avoid loosening and displacement.
The connecting member enhances the rigidity and stability of the overall structure, prevents loosening and displacement, improves safety and reliability, and avoids degradation in steel performance and increased safety risks.
Smart Images

Figure CN222576589U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of construction, in particular to a ladder box connecting component. Background Art
[0002] In the inspection and monitoring of civil air defense projects and other large facilities, a safety ladder box is required to ensure the safety of workers working in space or at heights. The existing safety ladder boxes generally use welding technology during installation, especially in the installation of wall-mounted rods. Specifically, a steel plate is welded on the steel pipe, and then the steel plate is connected to the steel plate on the safety ladder by bolts. Although this method achieves the connection function to a certain extent, it exposes many deficiencies in actual application.
[0003] First, when subjected to external forces such as wind loads, the rods of the safety ladder box will be subject to tension. The existing welding connection method causes these tensions to be mainly concentrated on the bolts and welding points, making these parts susceptible to excessive stress. This uneven force distribution affects the stability of the overall structure. Once the steel pipes are welded to the steel plates, it means that they can basically only be used for specific ladder boxes. Residual stress will be generated during the welding process, which may have an adverse effect on the performance of the steel in long-term use. In particular, the material properties of the welded parts may deteriorate over time, thereby increasing safety risks. Utility Model Content
[0004] The purpose of the utility model is to solve the problems raised in the above background technology, and then proposes a ladder box connecting component.
[0005] The technical solution adopted by the utility model to solve its technical problems is:
[0006] A ladder box connecting component comprises a center plate assembly, a clamp assembly is inserted between two center plate assemblies, the two center plate assemblies are locked and fixed by a locking mechanism, and a plurality of limiting mechanisms are arranged on the center plate assembly.
[0007] Furthermore, the center plate assembly includes a mounting plate, on which a first plate, a second plate, a third plate and a fourth plate are provided, and the first plate, the second plate, the third plate and the fourth plate are all provided with threaded holes, and the mounting plate is provided with two slide grooves, the two slide grooves are respectively located between the first plate and the second plate, and between the third plate and the fourth plate, and two through holes are provided between the second plate and the third plate.
[0008] Furthermore, the locking mechanism includes a central bolt rod and a central fastening nut. The central bolt rod passes through two through holes in sequence and is then tightened and fixed by the central fastening nut.
[0009] Furthermore, the clamp assembly includes two arc-shaped clamping plates, a rectangular sliding rod is connected to the back of the arc-shaped clamping plates, a connecting plate is provided on each side of the arc-shaped clamping plates, mounting holes are provided on the connecting plates, a steel pipe is clamped between the two arc-shaped clamping plates, and the two connecting plates are fixedly connected by bolts and nuts.
[0010] Furthermore, the rectangular slide bar can move along the slide groove, and two sides of the rectangular slide bar are locked and fixed by a limiting mechanism.
[0011] Furthermore, the limiting mechanism includes a threaded adjustment rod, a limiting nut and a slot plate. The threaded holes of the first plate, the second plate, the third plate and the fourth plate are all threadedly connected with the threaded adjustment rod. The slot plate is installed on the threaded adjustment rod. The slot plate is provided with a rectangular slot that matches the rectangular sliding rod. The limiting nut is threadedly connected to the threaded adjustment rod to prevent the threaded adjustment rod from loosening.
[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the overall design of the utility model has both flexibility and stability. The locking mechanism tightly locks the two center plate components through the center bolt rod and the fastening nut, which greatly enhances the rigidity and stability of the overall structure and effectively prevents loosening and displacement. The clamp assembly adopts the design of arc-shaped clamping plate and connecting plate, which can tightly clamp the steel pipe and fix the connection through bolts and nuts, ensuring the firm combination of the steel pipe and the connecting member, and avoiding the sliding or falling off of the steel pipe. The limiting mechanism effectively limits the movement range of the clamp assembly through the cooperation of the threaded adjustment rod, the limiting nut and the slot plate, preventing excessive movement or falling off, and further improving the safety and stability of the overall structure. This comprehensive design makes the connecting member both flexible and adjustable, and has excellent stability, providing reliable protection for the connection of the ladder box, and greatly improving the safety and reliability of use. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is the front view of the utility model;
[0014] Figure 2 It is a bottom view of the utility model;
[0015] Figure 3 is a schematic diagram of the three-dimensional structure of the center plate assembly;
[0016] Figure 4 is a schematic diagram of the three-dimensional structure of the clamp assembly;
[0017] Figure 5 It is a three-dimensional structural schematic diagram of the limiting mechanism;
[0018] Among them: 1 center plate assembly, 11 mounting plate, 12 first plate, 13 second plate, 14 third plate, 15 fourth plate, 16 threaded hole, 17 slide groove, 18 through hole, 2 clamp assembly, 21 arc clamp plate, 22 connecting plate, 23 rectangular slide rod, 24 mounting hole, 3 limiting mechanism, 31 slot plate, 311 rectangular slot, 32 threaded adjustment rod, 33 limiting nut, 4 locking mechanism, 41 center bolt rod, 42 center fastening nut. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. The utility model is further described in combination with the drawings and embodiments:
[0020] like Figure 1-Figure 5 As shown, a ladder box connecting component includes a center plate assembly 1, a clamp assembly 2 is inserted between two center plate assemblies, the two center plate assemblies are locked and fixed by a locking mechanism 4, and a plurality of limit mechanisms 3 are provided on the center plate assembly.
[0021] Further, the central plate assembly includes a mounting plate 11, on which a first plate 12, a second plate 13, a third plate 14 and a fourth plate 15 are arranged, and threaded holes 16 are arranged on the first plate 12, the second plate 13, the third plate 14 and the fourth plate 15, and two slide grooves 17 are arranged on the mounting plate, and the two slide grooves are respectively located between the first plate and the second plate, and between the third plate and the fourth plate, and two through holes 18 are arranged between the second plate and the third plate. As the main part of the connecting member, the central plate assembly provides a stable support and connection basis, so that each mechanical structure can be assembled together in an orderly and stable manner.
[0022] In at least one embodiment, the locking mechanism includes a central bolt rod 41 and a central fastening nut 42. The central bolt rod passes through two through holes in sequence and is tightened and fixed by the central fastening nut. The locking mechanism ensures the stability and rigidity of the central plate assembly, prevents loosening or displacement during use, and improves the safety and reliability of the overall structure.
[0023] In at least one embodiment, the clamp assembly includes two arc-shaped clamping plates 21, the back of the arc-shaped clamping plates is connected to a rectangular slide bar 23, a connecting plate 22 is provided on each side of the arc-shaped clamping plates, and a mounting hole 24 is provided on the connecting plate, a steel pipe is clamped between the two arc-shaped clamping plates, and the two connecting plates are fixedly connected by bolts and nuts. The clamp assembly can effectively clamp the steel pipe, ensure the close connection between the steel pipe and the connecting member, and prevent the steel pipe from sliding or falling off during use.
[0024] Furthermore, the rectangular slide bar can move along the slide groove, and in coordination therewith, the two sides of the rectangular slide bar are locked and fixed by a limiting mechanism. The limiting mechanism can effectively limit the movement range of the clamp assembly, preventing it from excessive movement or falling off during use, and further improving the safety and stability of the overall structure.
[0025] Specifically, the limiting mechanism includes a threaded adjustment rod 32, a limiting nut 33 and a slot plate 31. The threaded holes of the first plate 12, the second plate 13, the third plate 14 and the fourth plate 15 are all threadedly connected with the threaded adjustment rod 32. The slot plate is installed on the threaded adjustment rod. The slot plate is provided with a rectangular slot 311 that matches the rectangular slide bar. The limiting nut is threadedly connected to the threaded adjustment rod to prevent the threaded adjustment rod from loosening. This design makes the adjustment of the limiting mechanism simple and convenient, and the effect is remarkable.
[0026] Working method, first, make sure all components are complete and undamaged, including the center plate assembly, clamp assembly, locking mechanism and limit mechanism. Place the two center plate assemblies in parallel and ensure that their slides are aligned. Insert the rectangular slide bar of the clamp assembly into the slide of the center plate assembly. Make sure that the two arc-shaped clamps can clamp the steel pipes to be connected. According to the spacing of the steel pipes to be connected, move the clamp assembly along the slide until it reaches the appropriate position. Use bolts and nuts to fix the two connecting plates together to ensure that the arc-shaped clamps tightly clamp the steel pipes. Rotate the threaded adjustment rod to move the slot plate to the appropriate position so that the rectangular slot is aligned and clamped with the rectangular slide bar. Tighten the limit nut to prevent the threaded adjustment rod from loosening. Pass the center bolt rod through the two through holes in turn. Screw on the center fastening nut on the other end of the center bolt rod and tighten it gradually to ensure that the two center plate assemblies are tightly connected together. Make sure that all connections are firm and reliable. Carry out necessary tests to ensure that the connecting components can withstand the expected load. During use, regularly check the tightness of the connecting components to ensure that there is no looseness or damage. If any abnormality or damage is found, stop using it immediately and have it repaired or replaced.
[0027] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.
Claims
1. A ladder box connecting member, characterized in that: It comprises a central plate assembly, a clamp assembly is inserted between two central plate assemblies, the two central plate assemblies are locked and fixed by a locking mechanism, and a plurality of limiting mechanisms are arranged on the central plate assembly.
2. The ladder box connecting member according to claim 1, characterized in that: The center plate assembly includes a mounting plate, on which a first plate, a second plate, a third plate and a fourth plate are provided, wherein the first plate, the second plate, the third plate and the fourth plate are all provided with threaded holes, and the mounting plate is provided with two slide grooves, wherein the two slide grooves are respectively located between the first plate and the second plate and between the third plate and the fourth plate, and two through holes are provided between the second plate and the third plate.
3. The ladder box connecting member according to claim 2, characterized in that: The locking mechanism comprises a central bolt rod and a central fastening nut. The central bolt rod passes through two through holes in sequence and is then tightened and fixed by the central fastening nut.
4. The ladder box connecting member according to claim 2 or 3, characterized in that: The clamp assembly includes two arc-shaped clamping plates, a rectangular sliding rod is connected to the back of the arc-shaped clamping plates, a connecting plate is provided on each side of the arc-shaped clamping plates, a mounting hole is provided on the connecting plate, a steel pipe is clamped between the two arc-shaped clamping plates, and the two connecting plates are fixedly connected by bolts and nuts.
5. The ladder box connecting member according to claim 4, characterized in that: The rectangular slide bar can move along the slide groove, and two sides of the rectangular slide bar are locked and fixed by a limiting mechanism.
6. The ladder box connecting member according to claim 4, characterized in that: The limiting mechanism includes a threaded adjustment rod, a limiting nut and a slot plate. The threaded holes of the first plate, the second plate, the third plate and the fourth plate are all threadedly connected with the threaded adjustment rod. The slot plate is installed on the threaded adjustment rod. The slot plate is provided with a rectangular slot that matches the rectangular sliding rod. The limiting nut is threadedly connected to the threaded adjustment rod to prevent the threaded adjustment rod from loosening.
