Building construction hoist guide rail with self-locking function

Abstract

The utility model discloses a building construction elevator guide rail with self -locking function belongs to building elevating equipment technical field, and it aims at solving the technical problem under prior art. This building construction elevator guide rail with self -locking function includes a pair of stand and elevating platform, and a pair of stand and elevating platform are the main fittings of portal frame type building construction elevating equipment, and the stand has several horizontal arrangement cross bars, and the both sides of elevating platform bottom are all provided with self -locking pin arm, and self -locking pin arm is aligned with cross bar, and one end of self -locking pin arm extends out of elevating platform horizontally, and the other end of self -locking pin arm is rotatably installed at elevating platform bottom, and the bottom of elevating platform is provided with elastic pushing part, and elastic pushing part is used for elastic pushing self -locking pin arm to rotate and keep one end to extend out of elevating platform horizontally. This building construction elevator guide rail with self -locking function effectively prevents elevating platform from falling accidentally, and greatly improves the safety of building construction elevator.

Description

Technical Field

[0001] This utility model belongs to the technical field of construction hoisting equipment, specifically relating to a construction hoist guide rail with a self-locking function. Background Technology

[0002] In the construction industry, construction hoists are indispensable vertical transportation equipment. They efficiently transport construction workers, building materials, and tools to different work floors, greatly improving construction efficiency and shortening project timelines. However, with the continuous development of the construction industry and the increasing height of buildings, the safety issues of construction hoists have become increasingly prominent, becoming one of the key factors restricting the further development of the industry.

[0003] Traditional construction hoist guide rails have relatively simple structures, mostly possessing only basic guiding functions and lacking effective self-locking devices. During hoist operation, in the event of sudden situations such as drive unit failure, brake failure, overloading, or external impact, the hoist platform is highly susceptible to uncontrolled descent, posing a serious threat to the lives of construction workers and potentially causing equipment damage, project delays, and significant economic losses. While some existing technologies have incorporated self-locking hoist guide rail designs to address these safety issues, these designs often suffer from numerous drawbacks. For example, some self-locking devices have complex structures requiring multiple intricate mechanical components to work together, which not only increases manufacturing costs and maintenance difficulty but also reduces equipment reliability and stability, making it prone to malfunctions. Therefore, this application proposes a construction hoist guide rail with a self-locking function. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a construction hoist guide rail with a self-locking function, which aims to solve the technical problems of complex self-locking structure and low reliability of existing construction hoist guide rails.

[0005] Technical solution

[0006] To solve the above-mentioned technical problems, this utility model provides a construction hoist guide rail with a self-locking function, including a pair of columns and a lifting platform. The pair of columns and the lifting platform are the main accessories of the gantry-type construction hoist equipment. The columns have several horizontally arranged crossbars. Self-locking pins are provided on both sides of the bottom of the lifting platform. The self-locking pins are aligned with the crossbars. One end of the self-locking pin extends horizontally out of the lifting platform, and the other end of the self-locking pin is rotatably installed on the bottom of the lifting platform. A spring-loaded pusher is provided at the bottom of the lifting platform. The spring-loaded pusher is used to spring forcefully push the self-locking pin to rotate and keep one end of it extending out of the lifting platform in a horizontal state.

[0007] Preferably, the column comprises four vertical bars and several horizontal bars fixed horizontally between two adjacent vertical bars.

[0008] Preferably, a force-bearing plate is rotatably installed at the bottom of the lifting platform, the force-bearing plate and the self-locking pin arm share the same rotation axis, and the elastic pushing member is a self-locking spring disposed between the bottom end of the force-bearing plate and the lower surface of the lifting platform.

[0009] Preferably, a pair of fixing blocks are fixed at the bottom of the column near the self-locking pin arm, and a shaft is rotatably connected between the pair of fixing blocks. The self-locking pin arm and the force-bearing plate are radially fixed on the shaft.

[0010] Preferably, a pillow block is fixed on the upper surface of the self-locking pin arm. When the elastic pusher pushes the self-locking pin arm to rotate, the pillow block fits against the lower surface of the lifting platform, causing the self-locking pin arm to maintain a horizontal state with one end extending out of the lifting platform.

[0011] Preferably, the fixing block is rotatably sleeved with the end of the shaft, and the end of the shaft is also sleeved with a bushing, and a retaining ring is engaged at the end of the shaft to limit the bushing.

[0012] Preferably, the included angle between the self-locking pin arm and the force-bearing plate is 90°.

[0013] Preferably, a guide slide rod is fixed to the bottom end of the force-bearing plate away from the self-locking pin arm. The guide slide rod is curved in an arc shape, and the center of the curve of the guide slide rod coincides with the rotation axis of the self-locking pin arm and the force-bearing plate. A through hole is opened on the lifting platform, and the end of the guide slide rod away from the force-bearing plate passes through the through hole. The self-locking spring is sleeved on the guide slide rod, and the two ends of the guide slide rod abut against the lifting platform and the force-bearing plate, respectively.

[0014] Beneficial effects

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention utilizes the elastic force of a self-locking spring to rotate the self-locking pin arm, allowing it to automatically engage with the crossbar and achieve self-locking of the lifting platform. Simultaneously, the bolster block adheres to the lower surface of the lifting platform, further enhancing the stability of the self-locking mechanism and effectively preventing accidental falls, significantly improving the safety of construction hoists. The use of axles, fixing blocks, bushings, and retaining rings ensures the stable rotation and installation of the self-locking pin arm and the load-bearing plate at the bottom of the lifting platform. The cooperation of the guide slide rod and through hole provides precise guidance for the retraction and extension of the self-locking pin arm, guaranteeing the stability and reliability of the entire self-locking mechanism during operation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a structural schematic diagram of a building lifting equipment;

[0019] Figure 2 This is a structural schematic diagram of the lifting platform;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the lifting platform;

[0021] Figure 4 This utility model Figure 3 Enlarged view of point A in the image;

[0022] Figure 5 This is a schematic diagram of the self-locking pin arm and the force-bearing strip in this utility model.

[0023] The markings in the attached diagram are as follows: 1. Column; 2. Lifting platform; 3. Vertical bar; 4. Horizontal bar; 5. Self-locking pin arm; 6. Force-bearing plate; 7. Self-locking spring; 8. Guide slide rod; 9. Through hole; 10. Pillow block; 11. Fixing block; 12. Shaft; 13. Bushing; 14. Snap ring. Detailed Implementation

[0024] 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.

[0025] This embodiment provides a construction hoist guide rail with a self-locking function, the structural diagram of which is shown below. Figures 1-5 As shown, it includes a column 1, a lifting platform 2, a self-locking pin arm 5, a force-bearing plate 6, and a self-locking spring 7.

[0026] In this embodiment, the column 1 includes four vertical rods 3, which are parallel to each other and equally spaced. Several horizontal bars 4 are fixed horizontally between adjacent vertical rods 3, forming a stable frame structure. The lifting platform 2 is the load-bearing part of the construction lifting equipment, and self-locking pin arms 5 are symmetrically arranged on both sides of the bottom. One end of the self-locking pin arm 5 extends horizontally out of the lifting platform 2, and the other end is rotatably installed at the bottom of the lifting platform 2 via a shaft 12. The column 1 and the lifting platform 2 are the main components of the gantry-type construction lifting equipment. Since the gantry-type construction lifting equipment is an existing construction equipment structure, its lifting drive structure is not described in detail in this application.

[0027] Furthermore, a force-bearing plate 6 is rotatably installed at the bottom of the lifting platform 2. The force-bearing plate 6 and the self-locking pin arm 5 share the same rotation axis. A self-locking spring 7 is located between the bottom end of the force-bearing plate 6 and the lower surface of the lifting platform 2, providing elastic force for the rotation of the self-locking pin arm 5. The included angle between the force-bearing plate 6 and the self-locking pin arm 5 is 90°. A pair of fixing blocks 11 are fixed at the bottom of the column 1 near the self-locking pin arm 5. A shaft 12 is rotatably connected between the pair of fixing blocks 11. The self-locking pin arm 5 and the force-bearing plate 6 are radially fixed on the shaft 12. The fixing blocks 11 and the ends of the shaft 12 are rotatably sleeved. A bushing 13 is also sleeved on the end of the shaft 12. A retaining ring 14 is engaged at the end of the shaft 12. The retaining ring 14 is used to limit the bushing 13, preventing the bushing 13 from falling off the shaft 12 and ensuring the stability of the entire rotating structure.

[0028] Furthermore, in this embodiment, a guide slide rod 8 is fixed to the side of the force-bearing plate 6 away from the self-locking pin arm 5. The guide slide rod 8 is curved in an arc shape, and the center of the curve coincides with the rotation axis of the self-locking pin arm 5 and the force-bearing plate 6. A through hole 9 is opened on the lifting platform 2, and the end of the guide slide rod 8 away from the force-bearing plate 6 passes through the through hole 9. A self-locking spring 7 is sleeved on the guide slide rod 8, and both ends of the self-locking spring 7 abut against the lifting platform 2 and the force-bearing plate 6 respectively, ensuring that the self-locking spring 7 can work stably during compression and extension.

[0029] Furthermore, in this embodiment, a pillow block 10 is fixed on the upper surface of the self-locking pin arm 5. When the self-locking spring 7 pushes the self-locking pin arm 5 to rotate, the pillow block 10 is in contact with the lower surface of the lifting platform 2, causing the self-locking pin arm 5 to maintain a horizontal state with one end extending out of the lifting platform 2.

[0030] Working principle:

[0031] During normal operation of the construction hoist, the lifting platform 2 moves up and down along the column 1. When the lifting platform 2 rises, the self-locking spring 7 is in a naturally extended state, and its elastic force pushes the force-bearing plate 6 to rotate around the shaft 12. Since the force-bearing plate 6 and the self-locking pin arm 5 are connected through the same shaft 12, the self-locking pin arm 5 also rotates, causing one end of the self-locking pin arm 5 to extend horizontally outside the lifting platform 2. During this process, the self-locking pin arm 5 bounces on several crossbars 4. When the lifting platform 2 stops rising, the self-locking pin arm 5, under the thrust of the self-locking spring 7, is in a horizontal state with one end extending outside the lifting platform 2. The pillow block 10 on the self-locking pin arm 5 is in contact with the lower surface of the lifting platform 2, further ensuring that the self-locking pin arm 5 maintains a stable horizontal state, realizing the self-locking of the lifting platform 2, preventing the lifting platform 2 from falling accidentally, and ensuring the safety of construction personnel.

[0032] When it is necessary to lower the lifting platform 2, the construction personnel pull the force-bearing plate 6 downward with external force. The force-bearing plate 6 overcomes the elastic force of the self-locking spring 7 and rotates around the shaft 12, causing the self-locking pin arm 5 to rotate. This causes the end of the self-locking pin arm 5 that extends outside the lifting platform 2 to retract and break away from the obstruction of the crossbar 4. At this time, the lifting platform 2 can be lowered.

[0033] All technical features in this embodiment can be freely combined according to actual needs.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A construction hoist guide rail with self-locking function, comprising a pair of columns (1) and a lifting platform (2), wherein the pair of columns (1) and the lifting platform (2) are the main accessories of the gantry-type construction hoist equipment, characterized in that: The column (1) has several horizontally arranged crossbars (4). The bottom sides of the lifting platform (2) are provided with self-locking pin arms (5). The self-locking pin arms (5) are aligned with the crossbars (4). One end of the self-locking pin arm (5) extends horizontally out of the lifting platform (2). The other end of the self-locking pin arm (5) is rotatably installed at the bottom of the lifting platform (2). The bottom of the lifting platform (2) is provided with an elastic pusher. The elastic pusher is used to elastically push the self-locking pin arm (5) to rotate and keep one end extending out of the lifting platform (2) in a horizontal state.

2. A construction hoist guide rail with self-locking function according to claim 1, characterized in that, The column (1) includes four vertical bars (3) and several horizontal bars (4) are fixed horizontally between two adjacent vertical bars (3).

3. A construction hoist guide rail with self-locking function according to claim 1, characterized in that, The bottom of the lifting platform (2) is rotatably mounted with a force-bearing plate (6). The force-bearing plate (6) and the self-locking pin arm (5) share the same rotation axis. The elastic pushing component is a self-locking spring (7) set between the bottom end of the force-bearing plate (6) and the lower surface of the lifting platform (2).

4. A construction hoist guide rail with self-locking function according to claim 1, characterized in that, A pair of fixing blocks (11) are fixed at the bottom of the column (1) near the self-locking pin arm (5). A shaft (12) is rotatably connected between the pair of fixing blocks (11). The self-locking pin arm (5) and the force-bearing plate (6) are radially fixed on the shaft (12).

5. A construction hoist guide rail with self-locking function according to claim 4, characterized in that, A pillow block (10) is fixed on the upper surface of the self-locking pin arm (5). When the elastic pusher pushes the self-locking pin arm (5) to rotate, the pillow block (10) fits against the lower surface of the lifting platform (2), causing the self-locking pin arm (5) to maintain a horizontal state with one end extending out of the lifting platform (2).

6. A construction hoist guide rail with self-locking function according to claim 4, characterized in that, The fixing block (11) is rotatably sleeved with the end of the shaft (12), and the end of the shaft (12) is also sleeved with a bushing (13). The end of the shaft (12) is clamped with a retaining ring (14), which is used to limit the bushing (13).

7. A construction hoist guide rail with self-locking function according to claim 3, characterized in that, The included angle between the self-locking pin arm (5) and the force-bearing plate (6) is 90°.

8. A construction hoist guide rail with self-locking function according to claim 3, characterized in that, A guide slide rod (8) is fixed on the side of the bottom of the force-bearing plate (6) away from the self-locking pin arm (5). The guide slide rod (8) is curved in an arc shape, and the center of the curve of the guide slide rod (8) coincides with the rotation axis of the self-locking pin arm (5) and the force-bearing plate (6). A through hole (9) is provided on the lifting platform (2). The end of the guide slide rod (8) away from the force-bearing plate (6) passes through the through hole (9). The self-locking spring (7) is sleeved on the guide slide rod (8), and the two ends of the self-locking spring (7) abut against the lifting platform (2) and the force-bearing plate (6) respectively.

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