Ladder assembly fixing and connecting piece
By combining the design of limit pins and ball screws, the problem of easy loosening and difficult disassembly of ladder frame connectors in industrial environments is solved, achieving a stable connection and easy disassembly, thus improving the safety and maintenance efficiency of the ladder frame.
Patent Information
- Application Number
- CN202520758281.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-04-21
AI Technical Summary
Existing ladder frame connectors are prone to loosening in industrial environments, are easily deformed during welding, and are difficult to disassemble, affecting safety and maintenance efficiency.
The design employs a combination of limit pins and ball screws. The limit block and support block create friction at the joint notch, ensuring a stable connection and allowing for easy disassembly by turning the screws.
It improves the stability of the ladder frame under vibration and shock environments, simplifies the disassembly and maintenance process, and reduces maintenance costs.
Smart Images
Figure CN223806411U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to building connecting piece technical field especially relates to a ladder frame fixed connecting piece. BACKGROUND
[0002] Now, in most scenes, the assembled ladder frame undertakes the transportation task of personnel and goods, and its stability is directly related to the safety of production operation. As a key connecting component, the existing ladder frame connecting piece has many drawbacks.
[0003] The common connecting piece relies on bolts and welding fixation. The bolts are prone to loosening due to frequent vibration and mechanical impact in the industrial environment, which makes the ladder frame structure unstable and threatens the safety of personnel. Although welding can ensure a certain strength, thermal stress can cause deformation of the parts, affecting the installation precision, and it is extremely difficult to remove the welded parts during subsequent maintenance and modification, which can easily damage the overall structure. In addition, the connecting piece structure is complex, and multiple parts are nested. In the narrow operation space, special tools are required for disassembly, which is time-consuming and laborious. SUMMARY
[0004] The utility model discloses a ladder frame fixed connecting piece.
[0005] To achieve the above object, the following technical scheme is adopted:
[0006] A ladder frame fixed connecting piece, comprising a main body and a joint, a plurality of round holes are arranged on the main body, screws are arranged in the round holes, the joint is arranged on the main body, a notch is arranged on the joint, a limiting pin is arranged in the joint, a limiting block is arranged on the limiting pin, and the limiting block is inserted into the notch.
[0007] Preferably, at least two joints are arranged on the main body, the shape formed by the joints includes cross, L, Y, V, X and T, and the joints are inclined at an angle.
[0008] Preferably, the screw is a wave bead screw.
[0009] Preferably, the size and shape of the limiting block are matched with the notch, and a limiting groove and a supporting block are further arranged on the limiting pin.
[0010] Preferably, the limiting groove is arranged at the bottom of the limiting pin, and the size of the limiting groove is matched with the end of the screw.
[0011] Preferably, the supporting block is arranged at the end of the limiting pin.
[0012] Compared with the prior art, the utility model has the advantages of:
[0013] By screwing the limiting block on the limiting pin protrudes from the joint gap, the extrusion force is applied to the inner wall of the ladder frame, a larger friction force is formed at the connection, effectively preventing the relative displacement between the ladder frame parts, compared with the traditional bolt connection and welding method, can better resist the vibration, impact and other external forces in the industrial environment, ensure the stability of the escalator frame structure, improve the operation safety.
[0014] Only need to reverse screwing the limiting pin back, can easily disassemble the connecting piece, without the need for complex removal operation like traditional welding parts, also avoids the disassembly difficult problem caused by loosening or rust of bolt connection, greatly saves the time and labor cost during maintenance, reconstruction and repair. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a front structure schematic view of a ladder frame fixed connecting piece according to the embodiment 1 of the utility model;
[0016] Figure 2 It is a back structure schematic view of a ladder frame fixed connecting piece according to the embodiment 1 of the utility model;
[0017] Figure 3 It is a limiting pin front schematic view of a ladder frame fixed connecting piece according to the embodiment 1 of the utility model;
[0018] Figure 4 It is a limiting pin back schematic view of a ladder frame fixed connecting piece according to the embodiment 1 of the utility model;
[0019] Figure 5 It is an X-shaped connecting piece schematic view of a ladder frame fixed connecting piece according to the embodiment 1 of the utility model;
[0020] Figure 6 It is a schematic view of a ladder frame fixed connecting piece according to the embodiment 1 of the utility model DETAILED DESCRIPTION
[0021] Hereinafter, a ladder frame fixed connecting piece according to the utility model is specifically described with reference to the drawings.
[0022] As Figure 1 , Figure 2As shown, a ladder frame fixing connector includes a main body 100 and a joint 200. The main body 100 is provided with a plurality of round holes 101, and a screw 102 is arranged in each round hole 101. The round holes 101 on the main body 100 are used to accommodate the screw 102, and the screw 102 can move axially by screwing. The joint 200 is arranged on the main body 100, and the joint 200 is provided with a notch 201. The notch 201 on the joint 200 provides an extension channel for a limiting pin 202. The limiting pin 202 is arranged inside the joint 200, and can move outward under the action of the screw 102. The limiting pin 202 is provided with a limiting block 203, which is inserted into the notch 201. The limiting block 203 on the limiting pin 202 can be inserted into the notch 201, limiting the movement range of the limiting pin 202, ensuring that it stably extends when stressed and does not fall off. In addition, the limiting pin 202 exerts an extrusion force on the ladder frame from the inside, achieving a tight connection between the ladder frame and the connector, and improving the connection strength and stability.
[0023] As shown in Figure 5 , Figure 6 , at least two joints 200 are arranged on the main body 100. The shape formed by the joints 200 includes a cross, an L shape, a Y shape, a V shape, an X shape, or a T shape. The joints 200 have an inclination angle therebetween. The plurality of joints 200 have a plurality of inclination angles therebetween, thereby forming different shapes and achieving stable and precise connection, ensuring that the ladder frame can build a safe and reliable structure system in various industrial scenarios.
[0024] Further, the joints 200 of each type of connector have different inclination angles, including but not limited to 45°, 90°, 120°, 135°, or 150°.
[0025] Further, the screw 102 is a wave bead screw. The wave bead screw 102 has a unique structure, which can more accurately control the pressure on the limiting pin 202 when being screwed, and achieve stable protrusion or repositioning of the limiting pin 202 from the notch 201 on the joint 200. Compared with ordinary screws, it can provide more reliable fastening force and is more convenient to operate, effectively improving the connection strength, stability, and use convenience of the ladder frame fixing connector, and enhancing the overall performance of the connector.
[0026] As shown in Figure 2 , Figure 3 , the size and shape of the limiting block 203 match those of the notch 201, ensuring that it can be stably embedded in the notch 201. During the movement of the limiting pin 202, the limiting block 203 provides accurate guidance and reliable position limitation for the limiting pin 202, preventing the limiting pin 202 from shaking or falling out at will. The limiting pin 202 is also provided with a limiting groove 204 and a supporting block 205.
[0027] As shown in Figure 4As shown, the limiting groove 204 is located at the bottom of the limiting pin 202. The size of the limiting groove 204 matches the end of the screw 102. When the screw 102 is tightened, the end of the screw 102 can be tightly embedded in the limiting groove 204, preventing the screw 102 from shifting or slipping during operation. This ensures that the limiting pin 202 moves stably toward the ladder frame in a predetermined manner under the drive of the screw 102 and generates a squeezing force, thereby improving the fastening performance and reliability of the ladder frame fixing connection.
[0028] like Figure 4 As shown, the support block 205 is located at the end of the limiting pin 202. When the limiting pin 202 applies a compressive force to the ladder frame, it enhances the support strength of the limiting block 203, enabling it to better withstand the force from the limiting pin 202 and preventing the limiting block 203 from deforming or being damaged due to excessive force. This ensures that the entire ladder frame fixing connection can perform its fastening function efficiently and stably.
[0029] In this embodiment, as Figures 1-4 As shown, the ladder frame is inserted into the connector 200, and then the screw 102 on the main body 100 of the connector is tightened inward, which applies force to the limiting pin 202 inside the connector 200. At the same time, the support block 205 contacts the inside of the connector. Through the lever principle, the limiting block 203 at the other end of the limiting pin 202 is pushed upward, inserted into the notch 201 on the connector 200 and protruding outward. The protruding part of the limiting block 203 exerts a squeezing force on the inner wall of the ladder frame under the force. This squeezing force forms a frictional force at the connection of the ladder frame. The frictional force prevents relative displacement between the various parts of the ladder frame, thereby improving the stability of the connection.
[0030] The above description is merely a preferred embodiment of this application and is not intended to limit the scope of this application. Those skilled in the art may find other optimizations and additional functions in this application. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this application should be included within the scope of protection of this application.
Claims
1. A ladder stand mounting assembly comprising a main body (100) and a joint (200), characterized in that: The main body (100) is provided with a round hole (101), the screw (102) is arranged in the round hole (101), the joint (200) is arranged on the main body (100), the joint (200) is provided with a notch (201), the limiting pin (202) is arranged in the joint (200), the limiting block (203) is arranged on the limiting pin (202), and the limiting block (203) is inserted into the notch (201).
2. The ladder rack fixed connection of claim 1, wherein: The main body (100) is provided with at least two joints (200), the shape formed by the joints (200) comprises a cross shape, an L shape, a Y shape, a V shape, an X shape or a T shape, and the joints (200) have an inclined angle.
3. The ladder rack fixed connection of claim 1, wherein: The screw (102) is a wave bead screw.
4. The ladder rack fixed connection of claim 1, wherein: The limiting block (203) is matched with the notch (201) in size and shape, the limiting slot (204) and the supporting block (205) are further arranged on the limiting pin (202).
5. The ladder rack fixed connection of claim 4, wherein: The limiting slot (204) is arranged at the bottom of the limiting pin (202), and the size of the limiting slot (204) is matched with the end of the screw (102).
6. The ladder rack fixed connection of claim 4, wherein: The supporting block (205) is arranged at the end of the limiting pin (202).