Front and rear beam suspension type large-tonnage elevator car frame
The elevator car frame, with its front and rear beam suspension design, utilizes crossbeam components and guardrails to form an integrated structure, solving the problems of poor protection and low safety of existing large-tonnage elevator car frames, and achieving efficient space utilization and safety assurance.
Patent Information
- Application Number
- CN202423171593.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-23
AI Technical Summary
The existing large-tonnage elevator car frame has a large gap and opening between it and the top surface of the car after installation, which requires the installation of additional guardrails, which takes up space, increases design difficulty, and the independent structure of the guardrails from the car frame results in low safety.
The car adopts a front and rear beam suspension design, forming an integrated structure through the main car frame, auxiliary car frame and crossbeam assembly. The top of the car is protected by the crossbeam assembly and guardrails, and temporary protection and warning functions are achieved by combining temporary guard plates and connecting rods, thereby improving structural stability and safety.
This technology improves the protective effect and safety of the elevator car frame without occupying the space above the car, reduces the possibility of deformation of the guardrail structure under stress, and enhances the safety of maintenance personnel.
Smart Images
Figure CN223534662U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an elevator car frame, and more particularly to a front and rear beam suspended large-tonnage elevator car frame. Background Technology
[0002] Currently, the car frame used in large-tonnage elevators mainly consists of a main car frame and two auxiliary car frames. The main and auxiliary car frames are interconnected by steel sections to form a frame structure. Two parallel anti-cord pulleys are connected to the central main car frame or the two auxiliary car frames on both sides. However, the drawback of this structure is that after installation, the car frame will create a large installation gap and opening between itself and the top surface of the car. Therefore, to ensure the safety of maintenance personnel, manufacturers need to install guardrails around the top of the elevator car to cover the gap and opening and prevent maintenance personnel from falling.
[0003] However, once installed, this guardrail structure inevitably occupies the space at the top of the car, thus affecting the layout of the elevator frame and increasing the design difficulty for the elevator frame and guardrail structure. On the other hand, since the guardrail structure and the elevator frame are two independent components and are staggered, it is difficult for the elevator frame to provide long-term stable support and restraint for the guardrail structure, thereby increasing the possibility of the guardrail structure deforming and breaking under stress and causing maintenance personnel to fall.
[0004] Therefore, existing large-tonnage elevator car frames suffer from poor protection and low safety. Utility Model Content
[0005] The purpose of this invention is to provide a front and rear beam suspended large-tonnage elevator car frame. It features good protection and high safety.
[0006] The technical solution of this utility model is as follows: a front and rear beam suspended large-tonnage elevator car frame, including a main car frame and an auxiliary car frame spaced apart outside the car. There are two auxiliary car frames, symmetrically arranged on the left and right sides of the main car frame. Both the main car frame and the auxiliary car frame are rectangular frames, forming an installation cavity with the top of the car. Crossbeam assemblies are connected to the main car frame and the auxiliary car frame. There are two crossbeam assemblies, symmetrically arranged on the left and right sides of the main car frame and the auxiliary car frame. The ends of the two crossbeam assemblies extend to the outside of the auxiliary car frame and are connected to guardrails. A reverse rope pulley located in the installation cavity is connected to the auxiliary car frame. The crossbeam assembly includes a first crossbeam and a second crossbeam spaced vertically along the height direction. The first crossbeam and the second crossbeam are connected to each other by a first guardrail plate. There are multiple first guardrail plates spaced apart along the length direction of the crossbeam assembly.
[0007] In the aforementioned front and rear beam suspended large-tonnage elevator car frame, the guardrail includes two horizontal bars arranged at vertical intervals. Both horizontal bars are C-shaped. The two horizontal bars are connected to each other by multiple second guardrail plates arranged at intervals. The ends of the guardrail are detachably connected to the first horizontal beam and the second horizontal beam, respectively.
[0008] In the aforementioned front and rear beam suspended large-tonnage elevator car frame, the end of the guardrail is connected to the first or second crossbeam via a transition plate. One end of the transition plate is bolted to the second guardrail plate located at the end of the guardrail, and the other end of the transition plate is bolted to the first or second crossbeam.
[0009] In the aforementioned front and rear beam suspended large-tonnage elevator car frame, a temporary guard plate is provided on the outer side of the guardrail, and connecting rods are connected to both ends of the temporary guard plate. The ends of the connecting rods are connected to the auxiliary car frame via long bolt holes.
[0010] In the aforementioned front and rear beam suspended large-tonnage elevator car frame, several tie rods are distributed on both sides of the car. The tie rods are located on the left and right sides of the main car frame and the auxiliary car frame respectively along the depth direction of the car. The lower end of the tie rod is detachably connected to the side wall of the car, and the upper end of the tie rod is detachably connected to the main car frame or the auxiliary car frame.
[0011] In the aforementioned front and rear beam suspended large-tonnage elevator car frame, symmetrical elevator guide shoes are provided on both the top and bottom sides of the main car frame and the auxiliary car frame.
[0012] Compared with the prior art, this utility model has the following characteristics:
[0013] (1) By limiting the structure of the crossbeam assembly, this utility model enables the crossbeam assembly to serve as a connecting beam between the main car frame and the auxiliary car frame after installation. This improves the structural stability of the elevator car frame while reinforcing the first and second crossbeams using the main and auxiliary car frames, preventing the first and second crossbeams from being deformed and damaged under stress. On the other hand, the first crossbeam, the second crossbeam, and the first guardrail can work together to achieve an interception function, that is, to replace the traditional guardrail structure to protect the two sides of the top of the car. On this basis, the guardrails can protect the gaps between the crossbeam assemblies on both sides, improving the safety of this utility model and facilitating the assembly by the operators.
[0014] (2) Through the structural cooperation of the guardrail and the transition plate, the first and second crossbeams can be used as connecting parts between the elevator car frame and the guardrail, thereby improving the strength of the guardrail and connection and facilitating the installation of the guardrail by the operators; furthermore, through the cooperation of the temporary guard plate and the connecting rod, it can also play a temporary protection and warning function for the guardrail. That is, when the guardrail is in normal state, the transition plate bears the impact force applied to the guardrail from the outside and the guardrail is not under force; when the guardrail is deformed and damaged and overturned under force, the guardrail can temporarily limit the overturned guardrail, prevent the guardrail from overturning directly and enable the operators to repair the damaged guardrail in time, further improving the safety of this utility model;
[0015] Therefore, this utility model has the characteristics of good protection effect and high safety. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of Example 1;
[0017] Figure 2 This is a schematic diagram of the connection of the guardrail in Example 1;
[0018] Figure 3 This is a schematic diagram of the installation of the anti-cord pulley on the sub-car frame;
[0019] Figure 4 This is a schematic diagram of the connection of the guardrail in Example 2.
[0020] The markings in the attached diagram are as follows: 1-Main car frame, 2-Secondary car frame, 3-Mounting cavity, 4-Guard railing, 5-Reverse rope pulley, 6-First crossbeam, 7-Second crossbeam, 8-First guardrail plate, 9-Temporary guardrail plate, 10-Connecting rod, 11-Long slot, 12-Tie rod, 13-Elevator guide shoe, 401-Horizontal railing, 402-Second guardrail plate, 403-Adapter plate. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.
[0022] Example 1. A front and rear beam suspended high-tonnage elevator car frame, configured as follows: Figure 1-3As shown, the system includes a main car frame 1 and an auxiliary car frame 2 spaced apart outside the car. There are two auxiliary car frames 2, symmetrically arranged on the left and right sides of the main car frame 1. Both the main car frame 1 and the auxiliary car frame 2 are rectangular frames, forming a mounting cavity 3 between them and the top of the car. Crossbeam assemblies connect the main car frame 1 and the auxiliary car frame 2. There are two crossbeam assemblies, symmetrically arranged on the left and right sides of the main car frame 1 and the auxiliary car frame 2. The ends of the two crossbeam assemblies extend to the outside of the auxiliary car frame 2 and are connected to guardrails 4. Each auxiliary car frame 2 has two anti-cord pulleys 5 located within the mounting cavity 3. The car is arranged side by side in the width direction; the crossbeam assembly includes a first crossbeam 6 and a second crossbeam 7 arranged vertically and vertically along the height direction. The first crossbeam 6 and the second crossbeam 7 are two channel steels of different types. The middle and both ends of the first crossbeam 6 and the second crossbeam 7 are bolted to the side walls of the main car frame 1 and the auxiliary car frame 2, respectively. The first crossbeam 6 and the second crossbeam 7 are connected to each other by a first guardrail plate 8. There are multiple first guardrail plates 8, which are arranged at intervals along the length direction of the crossbeam assembly. The first guardrail plates 8, the main car frame 1 and the auxiliary car frame 2 are staggered with each other. The two ends of the first guardrail plates 8 are screwed to the first crossbeam 6 and the second crossbeam 7.
[0023] The guardrail 4 includes two horizontal bars 401 arranged at an interval between the top and bottom. Both horizontal bars 401 are C-shaped. The two horizontal bars 401 are connected to each other by a plurality of second guardrail plates 402 arranged at intervals. The second guardrail plates 402 and the two horizontal bars 401 are all angle steel and are welded together. The ends of the guardrail 4 are respectively detachably connected to the first crossbeam 6 and the second crossbeam 7.
[0024] The end of the guardrail 4 is connected to the first crossbeam 6 or the second crossbeam 7 via a transition plate 403. One end of the transition plate 403 is bolted to the second guardrail plate 402 located at the end of the guardrail 4, and the other end of the transition plate 403 is bolted to the first crossbeam 6 or the second crossbeam 7.
[0025] Several tie rods 12 are distributed on both sides of the car. The tie rods 12 are located on the left and right sides of the main car frame 1 and the auxiliary car frame 2 respectively along the depth direction of the car. The lower end of the tie rod 12 is detachably connected to the side wall of the car, and the upper end of the tie rod 12 is detachably connected to the main car frame 1 or the auxiliary car frame 2.
[0026] The main car frame 1 and the auxiliary car frame 2 are provided with symmetrical elevator guide shoes 13 on both the top and bottom sides. The elevator shaft is provided with six elevator guide rails, and each elevator guide rail corresponds to two elevator guide shoes 13.
[0027] The main car frame 1 and the auxiliary car frame 2 are both made of channel steel splicing, and adjacent channel steels are connected to each other by bolts. The two side walls of the bottom of the car are bolted to the main car frame 1 and the auxiliary car frame 2.
[0028] The working principle of this utility model is as follows: Through the structural cooperation of the main car frame 1, the auxiliary car frame 2 and the crossbeam assembly, this utility model enables the crossbeam assembly to be connected with the main car frame 1 and the auxiliary car frame 2 to form an integrated car frame structure. On the other hand, the crossbeam assembly can be used to protect the top sides of the car, so that the manufacturer can remove the guardrail structure on the top sides of the car while ensuring its safety, thus facilitating the manufacturer's layout and installation.
[0029] By defining the connection structure of the guardrail 4, the guardrail 4 and the elevator car frame can be connected by the cooperation of the first crossbeam 6 and the second crossbeam 7. Thus, the guardrail 4 protects the gaps between the crossbeam assemblies on both sides, and the elevator car frame fixes the guardrail 4, thereby ensuring the strength and deformation resistance of the guardrail 4.
[0030] Example 2. A front and rear beam suspended high-tonnage elevator car frame, configured as follows: Figure 4 As shown, the system includes a main car frame 1 and an auxiliary car frame 2 spaced apart outside the car. There are two auxiliary car frames 2, symmetrically arranged on the left and right sides of the main car frame 1. Both the main car frame 1 and the auxiliary car frame 2 are rectangular frames, forming a mounting cavity 3 between them and the top of the car. Crossbeam assemblies connect the main car frame 1 and the auxiliary car frame 2. There are two crossbeam assemblies, symmetrically arranged on the left and right sides of the main car frame 1 and the auxiliary car frame 2. The ends of the two crossbeam assemblies extend to the outside of the auxiliary car frame 2 and are connected to guardrails 4. Two anti-cord pulleys 5 are connected to each auxiliary car frame 2 within the mounting cavity 3. The beams are arranged side-by-side along the width of the car. The crossbeam assembly includes a first crossbeam 6 and a second crossbeam 7 spaced vertically along the height. The first crossbeam 6 and the second crossbeam 7 are two channel steels of different types. The middle and both ends of the first crossbeam 6 and the second crossbeam 7 are bolted to the side walls of the main car frame 1 and the auxiliary car frame 2, respectively. The first crossbeam 6 and the second crossbeam 7 are connected to each other by a first guardrail plate 8. There are multiple first guardrail plates 8, which are spaced along the length of the crossbeam assembly. The first guardrail plates 8, the main car frame 1 and the auxiliary car frame 2 are staggered. The two ends of the guardrail plates are screwed to the first crossbeam 6 and the second crossbeam 7.
[0031] The guardrail 4 includes two horizontal bars 401 arranged at an interval between the top and bottom. Both horizontal bars 401 are C-shaped. The two horizontal bars 401 are connected to each other by a plurality of second guardrail plates 402 arranged at intervals. The second guardrail plates 402 and the two horizontal bars 401 are all angle steel and are welded together. The ends of the guardrail 4 are respectively detachably connected to the first crossbeam 6 and the second crossbeam 7.
[0032] The end of the guardrail 4 is connected to the first crossbeam 6 or the second crossbeam 7 via a transition plate 403. One end of the transition plate 403 is bolted to the second guardrail plate 402 located at the end of the guardrail 4, and the other end of the transition plate 403 is bolted to the first crossbeam 6 or the second crossbeam 7.
[0033] The outer side of the guardrail 4 is provided with a temporary guard plate 9. The inner wall of the temporary guard plate 9 and the outer wall of the multiple second guardrail plates 402 are attached to each other. The two ends of the temporary guard plate 9 are connected with connecting rods 10. The ends of the connecting rods 10 are bolted to the sub-car frame 2 through the elongated holes 11.
[0034] Several tie rods 12 are distributed on both sides of the car. The tie rods 12 are located on the left and right sides of the main car frame 1 and the auxiliary car frame 2 respectively along the depth direction of the car. The lower end of the tie rod 12 is detachably connected to the side wall of the car, and the upper end of the tie rod 12 is detachably connected to the main car frame 1 or the auxiliary car frame 2.
[0035] The main car frame 1 and the auxiliary car frame 2 are provided with symmetrical elevator guide shoes 13 on both the top and bottom sides. The elevator shaft is provided with six elevator guide rails, and each elevator guide rail corresponds to two elevator guide shoes 13.
[0036] The main car frame 1 and the auxiliary car frame 2 are both made of channel steel splicing, and adjacent channel steels are connected to each other by bolts. The two side walls of the bottom of the car are bolted to the main car frame 1 and the auxiliary car frame 2.
[0037] Compared to Embodiment 1, this embodiment utilizes the structural cooperation between the temporary guard plate 9 and the connecting rod 10 to enable the temporary guard plate 9 to provide temporary protection and warning functions for the guardrail 4. Specifically, when the guardrail 4 is in its normal state, it is fixed by the cooperation of the crossbeam assembly and the adapter plate 403, and the temporary guard plate 9 is not subjected to pressure from the guardrail 4. When the guardrail 4 deforms and breaks under stress, causing it to flip outwards, the temporary guard plate 9 will first flip outwards along with the guardrail 4 until its connecting bolt slides from one end of the elongated hole 11 to the other. When the temporary guard plate 9 extends outwards to its limit position, the end of the elongated hole 11 and the bolt interlock, limiting the temporary guard plate 9 and preventing it from extending further outwards, thus achieving the protective effect. When the guardrail 4 experiences a side-flipping problem, the workers can be aware of the malfunction and repair it promptly, thereby ensuring the protective effect and stability of the guardrail 4.
Claims
1. A large-tonnage elevator car frame with front and rear beam suspension, characterized in that: The system includes a main car frame (1) and a secondary car frame (2) spaced apart outside the car. There are two secondary car frames (2) symmetrically arranged on the left and right sides of the main car frame (1). The main car frame (1) and the secondary car frame (2) are both rectangular frames and form an installation cavity (3) between them and the top of the car. The main car frame (1) and the secondary car frame (2) are connected to each other by crossbeam assemblies. There are two crossbeam assemblies symmetrically arranged on the left and right sides of the main car frame (1) and the secondary car frame (2). The ends of the two crossbeam assemblies extend to the outside of the secondary car frame (2) and are connected to guardrails (4). The secondary car frame (2) is connected to a reverse rope wheel (5) located in the installation cavity (3). The crossbeam assembly includes a first crossbeam (6) and a second crossbeam (7) spaced apart vertically along the height direction. The first crossbeam (6) and the second crossbeam (7) are connected to each other by a first guardrail (8). There are multiple first guardrails (8) spaced apart along the length direction of the crossbeam assembly.
2. The front and rear beam suspended large-tonnage elevator car frame according to claim 1, characterized in that: The guardrail (4) includes two horizontal rails (401) arranged at an interval between the top and bottom. Both horizontal rails (401) are C-shaped. The two horizontal rails (401) are connected to each other by a plurality of second guardrail panels (402) arranged at intervals. The ends of the guardrail (4) are respectively detachably connected to the first horizontal beam (6) and the second horizontal beam (7).
3. The front and rear beam suspended large-tonnage elevator car frame according to claim 2, characterized in that: The end of the guardrail (4) is connected to the first crossbeam (6) or the second crossbeam (7) via a transition plate (403). One end of the transition plate (403) is bolted to the second guardrail plate (402) located at the end of the guardrail (4), and the other end of the transition plate (403) is bolted to the first crossbeam (6) or the second crossbeam (7).
4. The front and rear beam suspended large-tonnage elevator car frame according to claim 2, characterized in that: The outer side of the guardrail (4) is provided with a temporary guard plate (9), and the two ends of the temporary guard plate (9) are connected with connecting rods (10). The ends of the connecting rods (10) are bolted to the sub-car frame (2) through the elongated holes (11).
5. The front and rear beam suspended large-tonnage elevator car frame according to claim 1, characterized in that: Several tie rods (12) are distributed on both sides of the car. The tie rods (12) are located on the left and right sides of the main car frame (1) and the auxiliary car frame (2) respectively along the depth direction of the car. The lower end of the tie rod (12) can be detachably connected to the side wall of the car, and the upper end of the tie rod (12) can be detachably connected to the main car frame (1) or the auxiliary car frame (2).
6. The front and rear beam suspended large-tonnage elevator car frame according to claim 1, characterized in that: The main car frame (1) and the auxiliary car frame (2) are provided with symmetrical elevator guide shoes (13) on the top and bottom sides.