Modular guide rail support for an elevator

Abstract

The utility model provides a kind of modularization guide rail support for elevator, by adopting connecting plate detachable fixed in guide shoe installation support both sides, this design makes when needing to overhaul, replace component or maintain guide shoe support, connecting plate can be conveniently taken down, without large-scale disassembly to overall structure, improve the efficiency and convenience of maintenance, reduce maintenance cost;Boot lining inboard adjacent bending junction is punched out open channel along bending axis line extension, forms elastic shrinkage gap.This design makes rectangular frame generate prestress to inwardly embrace guide rail, enhance the friction and directivity between guide shoe and guide rail, make elevator car more accurately move along guide rail in the process of operation, reduce deviation and sway.Simultaneously, elastic shrinkage gap can also reduce stress concentration at bending, prolong the service life of boot lining, reduce the damage and replacement frequency of boot lining due to stress concentration, further reduce maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of elevator component technology, specifically a modular elevator guide rail bracket. Background Technology

[0002] With the development of society and economy and the continuous emergence of high-rise buildings, elevators have gradually become more widespread. Guide shoes are an indispensable component on the elevator running track. They can fix the car on the guide rail, allowing the car to move only up and down without horizontal swaying. In existing elevators, the mounting base of the guide shoe is usually not closely connected to the main beam of the guide shoe. As the main beam contacts the guide rail, vibration can easily cause the screws to loosen.

[0003] For example, patent number CN201820280370.9 discloses an elevator guide shoe assembly, comprising a guide shoe base, a sliding shoe liner, and a roller assembly. The sliding shoe liner is mounted on the guide shoe base to enable the elevator guide shoe assembly to function as a sliding guide shoe; and the roller assembly is mounted on the guide shoe base to enable the elevator guide shoe assembly to simultaneously function as a rolling guide shoe. The elevator guide shoe assembly also includes an adjusting bracket and an adjusting nut. The adjusting bracket is mounted on the guide shoe base and has an adjusting hole through which a screw passes, and the adjusting nut is used to adjust the distance between the roller assembly and the guide rail surface. The above-mentioned device has the following shortcomings in practical use: This device fixes the guide shoe base to the top of the elevator car and then uses screws to fix the elevator main beam to the guide shoe base. When the elevator is running, the guide rail rubs against the guide shoe liner inside the elevator main beam, which causes vibration to the elevator main beam itself. As the elevator runs for a longer period of time, the vibration causes the connecting screws of the elevator main beam to loosen, which significantly shortens the maintenance cycle of the guide shoe and increases safety hazards. At the same time, the loosening of the screws further increases the vibration of the elevator main beam, thereby generating more noise and interfering with the normal use of the elevator. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a modular elevator guide rail bracket.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a modular elevator guide rail bracket, comprising: a guide shoe mounting bracket for fixed connection with the elevator car; A connecting plate is detachably fixed to both sides of the guide shoe mounting bracket; a limit hole is provided on the connecting plate along its vertical extension direction; The boot liner has a fixing block that matches the limiting hole. The boot liner is formed by three consecutive 90° bends to create an enclosing snap-fit ​​slide. The opening end of the snap-fit ​​slide faces away from the guide shoe mounting bracket, and the snap-fit ​​slide vertically penetrates the connecting plate and the guide shoe mounting bracket. At the junction of adjacent bends on the inner side of the boot liner, open channels extending along the bending axis are punched out to form an elastic contraction gap, so that the rectangular frame generates prestress to hug the guide rail inward, while reducing stress concentration at the bend.

[0006] As a preferred embodiment of this application, the guide shoe mounting bracket includes: a mounting base plate with a plurality of mounting holes arranged in a rectangular pattern on the mounting base plate; a connecting block is also vertically provided along the end face of the side wall of the mounting base plate, the mounting holes being located within the enclosing surface of the connecting block; the connecting block is composed of a support section and a connecting section, wherein the support sections are arranged opposite to each other, with their tops extending obliquely towards the bottom, the connecting section is connected to the adjacent support section by an arc transition, and an angled section protruding towards the boot liner is provided at the central axis of the connecting section.

[0007] As a preferred embodiment of this application, the two side walls of the included angle segment are connected to the connecting plate using bolts, and the bolts are equipped with buffer pads.

[0008] As a preferred embodiment of this application, the two sides of the connecting plate are configured as connecting surfaces parallel to the sidewall of the included angle segment, the middle part of which is a horizontal surface, and the horizontal surface is transitionally connected to the connecting surfaces on both sides. At both ends of the horizontal surface away from the guide shoe mounting bracket, there are limiting plates, the limiting card holes are opened on the limiting plates, and the shoe liner is located in the area enclosed by the limiting plates.

[0009] As a preferred embodiment of this application, a reinforcing plate is provided between the limiting plate and the adjacent connecting plate, and the reinforcing plate is arranged in an array along the vertical extension direction of the limiting plate.

[0010] Furthermore, the bolts are positioned in the gap between the reinforcing plates.

[0011] Furthermore, the limiting hole is provided in at least two parts.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: The connecting plate in this application is detachably fixed to both sides of the guide shoe mounting bracket. This design allows for easy removal of the connecting plate when inspection, component replacement, or maintenance of the guide shoe bracket is required, eliminating the need for large-scale disassembly of the overall structure. This improves maintenance efficiency and convenience, and reduces maintenance costs. An open channel extending along the bending axis is stamped at the junction of adjacent bends on the inner side of the shoe liner, forming an elastic contraction gap. This design generates pre-stress in the rectangular frame to grip the guide rail inward, enhancing the friction and guidance between the guide shoe and the guide rail. This allows the elevator car to move more precisely along the guide rail during operation, reducing offset and sway. Simultaneously, the elastic contraction gap reduces stress concentration at the bends, extending the service life of the shoe liner and reducing the frequency of shoe liner damage and replacement due to stress concentration, further lowering maintenance costs. Attached Figure Description

[0013] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is the front view of the present invention; Figure 3 This is a side view of the present invention; Figure 4 This is a top view of the present invention.

[0014] In the diagram: 1. Guide shoe mounting bracket; 11. Mounting base plate; 12. Mounting hole; 13. Connecting block; 14. Support section; 15. Connecting section; 16. Angle section; 2. Connecting plate; 21. Connecting surface; 22. Horizontal plane; 23. Limiting plate; 24. Limiting hole; 25. Reinforcing plate; 3. Shoe liner; 4. Snap-fit ​​slide; 5. Open channel; 6. Bolt; 7. Buffer pad. Detailed Implementation

[0015] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0016] like Figure 1-4 As shown, a modular elevator guide rail bracket includes: a guide shoe mounting bracket 1, for fixed connection with the elevator car; The connecting plate 2 is detachably fixed to both sides of the guide shoe mounting bracket 1; a limit hole 24 is provided on the connecting plate 2 along its vertical extension direction; The boot liner 3 is provided with a fixing block that matches the limiting hole 24. The boot liner 3 is formed by three consecutive 90° bends to create an enclosing snap-fit ​​slide 4. The opening end of the snap-fit ​​slide 4 is set facing away from the guide shoe mounting bracket 1, and the snap-fit ​​slide 4 vertically penetrates the connecting plate 2 and the guide shoe mounting bracket 1. At the junction of adjacent bends on the inner side of the boot liner 3, open channels 5 extending along the bending axis are punched out to form an elastic shrinkage gap.

[0017] Implementation principle ① The boot liner 3 is bent at 3×90° to form a "C"-shaped open snap-fit ​​slide 4. The material is 0.8 mm 65Mn spring steel with a yield strength σs≥980 MPa. The inner R=0.8 t (t is the plate thickness) of the bend is simultaneously stamped at the 90° ridge line to form an open channel 5 of 0.3 mm×0.3 mm with a channel depth of 0.2 mm, which reduces the moment of inertia of the section in the bending area by 12% and forms an elastic hinge effect.

[0018] ② When the guide rail (T75-3 / B) is inserted into the snap-fit ​​slide 4, the channel is allowed to be slightly stretched locally, generating a radial clamping force of 5 to 15 N, forming boltless prestress 6; after unloading, the boot liner 3 automatically rebounds, with residual deformation <0.02 mm.

[0019] ③ The limiting hole 24 and the fixing block adopt a 6° wedge-shaped self-locking mechanism, with an insertion force of 20 N and an extraction force of ≥120 N, realizing tool-free "sliding-pressing-locking" one-step assembly.

[0020] Workflow Step 1: Slide the boot liner 3 from top to bottom into the rectangular channel between the connecting plate 2 and the guide shoe mounting bracket 1; Step 2: The fixing block automatically clicks into place when it passes through the limit hole 24. Step 3: Push the guide rail horizontally into the boot liner 3, the groove slightly opens and provides a tight grip; Step 4 When maintenance is required, use a flathead screwdriver to pry the bevel of the fixing block, and the boot liner 3 will slide upwards.

[0021] Reference Model Boot lining 3: 65Mn, hardness HRC42; Guide rail: TK5A-T75-3 / B, width 75 mm, thickness 9 mm; Channel parameters: width 0.3 mm, depth 0.2 mm, pitch 4 mm.

[0022] Energy supply implementation This layer undergoes purely mechanical elastic deformation and requires no external power supply; the channel machining uses a 300 kN servo press with 0.01 mm grating feedback to ensure dimensional consistency.

[0023] Beneficial effects ① By eliminating the traditional four M6 bolts, the assembly cycle time is reduced from 45 seconds to 8 seconds; ② The channel reduces stress concentration by 25%, and the fatigue life is increased from 2×10 6 This time it was upgraded to 5×10 6 Second-rate; ③ The open slide rail is compatible with guide rails with a tolerance of ±0.4 mm, achieving a 100% compatibility rate.

[0024] The guide shoe mounting bracket 1 includes: a mounting base plate 11 with a plurality of mounting holes 12 arranged in a rectangular pattern on the mounting base plate 11; a connecting block 13 is also vertically provided along the end face of the side wall of the mounting base plate 11, and the mounting holes 12 are located within the enclosing surface of the connecting block 13; the connecting block 13 is composed of a support section 14 and a connecting section 15, wherein the support section 14 is arranged opposite to each other, and its top is inclined and extended towards the bottom (the inclined and extended shape of the support section 14 and the arc transition connection enhance the overall structural strength of the guide shoe mounting bracket 1 and improve the resistance to deformation), the connecting section 15 is connected to the adjacent support section 14 by an arc transition, and an angled section 16 protruding towards the shoe liner 3 is provided at the central axis of the connecting section 15. The angled section 16 provides precise positioning for the subsequent installation of components, ensures the installation accuracy between components, and enhances the strength of this application.

[0025] Implementation principle The rectangular mounting holes 12 on the mounting base plate 11 are used for a secure connection with the elevator car. The connecting block 13 is vertically mounted on the end face of the side wall of the mounting base plate 11, and the inclined extended design of the support section 14 increases the structural strength and stability. The connecting section 15 is connected to the support section 14 with a rounded transition, reducing stress concentration. The included angle section 16 protrudes towards the shoe liner 3, providing positioning and support for the subsequent installation of components such as the connecting plate 2.

[0026] Workflow When installing the guide shoe mounting bracket 1, first fix the mounting base plate 11 to the elevator car through the mounting hole 12. The connecting block 13 naturally forms a stable support structure, and the included angle section 16 is ready for the subsequent installation of components.

[0027] To reduce vibration transmission during elevator operation, decrease wear and noise at connection points, and improve the overall reliability of the guide shoe bracket, bolts 6 are used to connect the two sidewalls of the included angle section 16 to the connecting plate 2. Buffer pads 7 are fitted onto the bolts 6. In this embodiment, bolts 6 are used to connect the two sidewalls of the included angle section 16 to the connecting plate 2, achieving a stable fixation between the two. The buffer pads 7, placed on the bolts 6, serve to buffer and dampen vibrations, reducing the impact of elevator vibrations on the connection points.

[0028] Bolt 6 can be any common size from M6 to M12, selected according to the stress conditions of the connection. Buffer pad 7 can be made of rubber, such as nitrile rubber.

[0029] The connecting plate 2 has connecting surfaces 21 on both sides that are parallel to the sidewall of the included angle segment 16. The middle part is a horizontal surface 22, and the horizontal surface 22 is connected to the connecting surfaces 21 on both sides. At both ends of the horizontal surface 22 away from the guide shoe mounting bracket 1, there are limiting plates 23. The limiting holes 24 are opened on the limiting plates 23, and the shoe liner 3 is located in the area enclosed by the limiting plates 23.

[0030] Implementation principle Connecting plates 2 have connecting surfaces 21 on both sides that are parallel to the sidewalls of the included angle segment 16. The middle parallel connecting surface 21 is seamlessly connected to the two sides to form a stable structure. Limiting plates 23 are located at both ends of the parallel connecting surfaces 21, and limiting holes 24 are formed on the limiting plates 23 for positioning the boot liner 3. The boot liner 3 is secured within the area enclosed by the limiting plates 23 for precise installation.

[0031] To enhance the connection strength between the limiting plate 23 and the connecting plate 2 and improve the stability of the entire structure, a reinforcing plate 25 is provided between the limiting plate 23 and the adjacent connecting plate 2. The reinforcing plates 25 are arranged in an array along the vertical extension direction of the limiting plate 23 (preferably by welding).

[0032] To make the structure more compact, the bolts 6 are placed in the gap between the reinforcing plates 25.

[0033] In order to improve the positioning accuracy of the shoe liner 3 and ensure a good fit between the guide shoe and the guide rail, at least two limiting holes 24 are provided (preferably two on one side, and multiple limiting holes 24 can fix the shoe liner 3 from different positions to prevent the shoe liner 3 from shifting during elevator operation).

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A modular elevator guide rail bracket, characterized in that, include: Guide shoe mounting bracket (1) is used for fixed connection with the elevator car; The connecting plate (2) is detachably fixed to both sides of the guide shoe mounting bracket (1); a limit hole (24) is provided on the connecting plate (2) along its vertical extension direction. The boot liner (3) is provided with a fixing block that matches the limiting hole (24). The boot liner (3) is formed by three consecutive 90° bends to form a closed snap-fit ​​slide (4). The opening end of the snap-fit ​​slide (4) is set towards the side away from the guide shoe mounting bracket (1), and the snap-fit ​​slide (4) vertically penetrates the connecting plate (2) and the guide shoe mounting bracket (1). At the junction of adjacent bends on the inner side of the boot liner (3), open channels (5) extending along the bending axis are punched out to form an elastic shrinkage gap.

2. The modular elevator guide rail bracket as described in claim 1, characterized in that, The guide shoe mounting bracket (1) includes: a mounting base plate (11) with a plurality of mounting holes (12) arranged in a rectangular pattern on the mounting base plate (11); a connecting block (13) is also provided vertically along the side wall end face of the mounting base plate (11), and the mounting holes (12) are located within the enclosing surface of the connecting block (13); the connecting block (13) is composed of a support section (14) and a connecting section (15), wherein the support section (14) is arranged opposite to each other, with its top extending obliquely towards the bottom, the connecting section (15) is connected to the adjacent support section (14) by a circular arc transition, and an angled section (16) protruding towards the boot liner (3) is provided at the central axis of the connecting section (15).

3. A modular elevator guide rail bracket as described in claim 2, characterized in that, The two side walls of the included section (16) are connected to the connecting plate (2) by bolts (6), and a buffer pad (7) is provided on the bolts (6).

4. A modular elevator guide rail bracket as described in claim 3, characterized in that, The connecting plate (2) has connecting surfaces (21) on both sides that are parallel to the sidewall of the included angle segment (16), and the middle part is a horizontal surface (22). The horizontal surface (22) is connected to the connecting surfaces (21) on both sides. On the two ends of the horizontal surface (22) away from the guide shoe mounting bracket (1), there are limiting plates (23). The limiting holes (24) are opened on the limiting plates (23), and the shoe liner (3) is located in the area enclosed by the limiting plates (23).

5. A modular elevator guide rail bracket as described in claim 4, characterized in that, A reinforcing plate (25) is provided between the limiting plate (23) and the adjacent connecting plate (2), and the reinforcing plate (25) is arranged in an array along the vertical extension direction of the limiting plate (23).

6. A modular elevator guide rail bracket as described in claim 5, characterized in that, The bolt (6) is placed in the gap between the reinforcing plates (25).

7. A modular elevator guide rail bracket as described in claim 5, characterized in that, The limiting hole (24) has at least two.

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