Elevator guide rail braking device

Abstract

The elevator guide rail braking device comprises a guide rail body and a limiting sliding groove, an installation plate is installed on the left side of the guide rail body and welded to the guide rail body, the limiting sliding groove is connected to the periphery of the guide rail body in a sliding mode, and a braking groove is formed in the right side of the interior of the guide rail body. A brake block is arranged on the right side of the brake groove, and moving grooves are formed in the front side and the rear side of the brake block. Compared with an existing guide rail braking device, the tachometer wheel of the elevator guide rail braking device ascends, descends, slides and rotates on the guide rail body along with the limiting sliding groove, the rotating speed sensor measures and calculates the ascending and descending speed of an elevator through the tachometer wheel, the spring rod guarantees that the braking block slides to the right side of the moving groove, and the hydraulic rod pushes the wedge block to move upwards; the brake block is pushed leftwards by the wedge-shaped block, friction force is increased through the rough wear-resisting layers on the outer surface of the brake block and the inner surface of the brake groove, rapid braking is achieved, the cushion block bears transverse pressure, the stress burden of the hydraulic rod is relieved, and the braking effect is better.

Description

Technical Field

[0001] This utility model relates to the field of elevator braking technology, specifically to an elevator guide rail braking device. Background Technology

[0002] An elevator is a vertical lifting machine powered by an electric motor, equipped with a box-shaped cabin, used for carrying people or goods in multi-story buildings. There are also stepped elevators, where steps are mounted on a continuous running track, commonly known as escalators or moving walkways. When using a vertical elevator, a braking device is necessary to stop the elevator, requiring an elevator guide rail braking device.

[0003] The existing patent, CN217676211U, entitled "An Elevator Guide Rail Braking Device," discloses an elevator guide rail braking device belonging to the field of elevator technology. It includes an elevator guide rail, a braking device positioned beside the guide rail, a support frame for the braking device, and symmetrically arranged cylinders inside the support frame. Each cylinder has a cylinder rod, and a push plate is fixedly connected to the end of the cylinder rod. Support rods are symmetrically connected inside the support frame, and circular plates are fixedly connected to the ends of the support rods. This elevator guide rail braking device features a double braking system, with braking devices at both the top and bottom of the guide rail, and one braking device at each of the left and right ends. The four braking devices ensure a good braking effect and prevent braking failure that could lead to the elevator failing to stop or falling directly. Furthermore, the braking device includes a spring, which protects the brake plate and the guide rail without hindering the brake plate's braking action on the elevator guide rail, facilitating its use.

[0004] The aforementioned device, with its four braking mechanisms, ensures effective braking and prevents brake failure that could lead to the elevator failing to stop or plummeting. Furthermore, the braking mechanism includes springs to protect the brake plate and guide rails. However, emergency braking of an elevator requires significant force, and excessive force concentration can hinder the rapid braking of ordinary brakes, failing to adequately meet user needs. Therefore, this invention addresses these issues by innovating upon existing guide rail braking devices. Utility Model Content

[0005] The purpose of this invention is to provide an elevator guide rail braking device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an elevator guide rail braking device, comprising a guide rail body and a limiting slide groove. An mounting plate is installed on the left side of the guide rail body, and the mounting plate is welded to the guide rail body. The limiting slide groove is slidably connected to the periphery of the guide rail body, and a braking groove is installed on the right side of the inside of the guide rail body. A braking block is provided on the right side of the braking groove, and movable grooves are installed on the front and rear sides of the braking block. The rough wear-resistant layer on the outer surface of the braking block and the inner surface of the braking groove increases the friction force and enables rapid braking.

[0007] Furthermore, a wedge block is installed on the right side of the brake block, and a hydraulic rod is installed below the wedge block. The hydraulic rod pushes the wedge block upward, and the brake block is pushed to the left by the wedge block, pressing the brake block against the brake groove.

[0008] Furthermore, a pad is installed on the right side of the wedge block, and the pad and the wedge block are slidably connected. The wedge block slides on the pad, and the pad bears the lateral pressure, reducing the stress on the hydraulic rod.

[0009] Furthermore, a connecting block is installed on the right side of the limiting slide, and the connecting block is welded to the limiting slide. The limiting slide is installed on the load-bearing structure of the elevator through the connecting block.

[0010] Furthermore, a spring rod is installed above the brake block, and the spring rod is embedded in the brake block. The spring rod ensures that the brake block slides to the right side of the moving groove, preventing it from affecting the elevator's lifting and lowering.

[0011] Furthermore, a monitoring component is installed inside the upper part of the limiting slide groove, and the monitoring component is embedded in the limiting slide groove.

[0012] Furthermore, the monitoring component includes a speed measuring wheel and a speed sensor, and the speed sensor is installed on the right side of the speed measuring wheel. The speed measuring wheel slides and rotates on the guide rail body as the limit slide groove moves up and down. The speed sensor calculates the elevator's lifting speed through the speed measuring wheel.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: the guide rail body is installed on the wall through the mounting plate, and bolts are evenly arranged on the mounting plate to ensure a stable fixation. The limiting slide groove is installed on the load-bearing structure of the elevator through the connecting block. The speed measuring wheel slides and rotates on the guide rail body with the limiting slide groove. The speed sensor calculates the elevator's lifting speed through the speed measuring wheel. The spring rod ensures that the brake block slides to the right side of the moving groove to prevent affecting the elevator's lifting speed. When the elevator car speed exceeds 115% of the rated value, the brake is triggered. The hydraulic rod pushes the wedge block upward, and the brake block is pushed to the left by the wedge block. The brake block is pressed against the brake groove. The rough wear-resistant layer on the outer surface of the brake block and the inner surface of the brake groove increases the friction force and enables rapid braking. The wedge block slides on the pad block, and the pad block bears the lateral pressure, reducing the stress on the hydraulic rod and improving the braking effect.

[0014] 1. When the speed of the elevator car exceeds a certain percentage of the rated value, the brake is triggered. The hydraulic rod pushes the wedge block upward, and the brake block is pushed to the left by the wedge block. The brake block is pressed against the brake groove. The rough wear-resistant layer on the outer surface of the brake block and the inner surface of the brake groove increases the friction force and brakes quickly. The wedge block slides on the pad, and the pad bears the lateral pressure, which reduces the stress on the hydraulic rod and improves the braking effect.

[0015] 2. The guide rail body of this utility model is installed on the wall by a mounting plate. Bolts are evenly arranged on the mounting plate to ensure a stable fixation. The limiting slide groove is installed on the load-bearing structure of the elevator by a connecting block. The speed measuring wheel slides and rotates on the guide rail body with the limiting slide groove. The speed sensor calculates the elevator's lifting speed through the speed measuring wheel. The spring rod ensures that the brake block slides to the right side of the moving groove to prevent affecting the elevator's lifting speed. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of an elevator guide rail braking device according to the present invention;

[0017] Figure 2 This is a partial three-dimensional cross-sectional view of the limiting slide groove of an elevator guide rail braking device according to the present invention;

[0018] Figure 3 This is a three-dimensional side view of the limiting slide groove of an elevator guide rail braking device according to the present invention.

[0019] In the diagram: 1. Guide rail body; 2. Mounting plate; 3. Braking groove; 4. Limiting slide groove; 5. Connecting block; 6. Braking block; 7. Moving groove; 8. Wedge block; 9. Hydraulic rod; 10. Spring rod; 11. Monitoring component; 1101. Speed ​​measuring wheel; 1102. Speed ​​sensor; 12. Pad block. Detailed Implementation

[0020] like Figure 1-3As shown, an elevator guide rail braking device includes a guide rail body 1 and a limiting slide groove 4. An mounting plate 2 is installed on the left side of the guide rail body 1, and the mounting plate 2 is welded to the guide rail body 1. The limiting slide groove 4 is slidably connected to the periphery of the guide rail body 1. A braking groove 3 is installed on the right side of the inside of the guide rail body 1. A braking block 6 is provided on the right side of the braking groove 3. Moving grooves 7 are installed on the front and rear sides of the braking block 6. A wedge-shaped block 8 is installed on the right side of the braking block 6, and a hydraulic rod 9 is installed below the wedge-shaped block 8. A pad 12 is installed on the right side, and the pad 12 is slidably connected to the wedge block 8. When the elevator car speed exceeds 115% of the rated value, the brake is triggered. The hydraulic rod 9 pushes the wedge block 8 upward, and the brake block 6 is pushed to the left by the wedge block 8. The brake block 6 is pressed against the brake groove 3. The rough wear-resistant layer on the outer surface of the brake block 6 and the inner surface of the brake groove 3 increases the friction force and brakes quickly. The wedge block 8 slides on the pad 12, and the pad 12 bears the lateral pressure, reducing the stress on the hydraulic rod 9 and improving the braking effect.

[0021] like Figure 1-3 As shown, a connecting block 5 is installed on the right side of the limiting slide 4, and the connecting block 5 is welded to the limiting slide 4. A spring rod 10 is installed above the brake block 6, and the spring rod 10 is embedded in the brake block 6. A monitoring component 11 is installed inside the limiting slide 4, and the monitoring component 11 is embedded in the limiting slide 4. The monitoring component 11 includes a speed measuring wheel 1101 and a speed sensor 1102, and the speed sensor 1102 is installed on the right side of the speed measuring wheel 1101. The guide rail body 1 is installed on the wall through the mounting plate 2. Bolts are evenly arranged on the mounting plate 2 to ensure a stable fixation. The limiting slide 4 is installed on the load-bearing structure of the elevator through the connecting block 5. The speed measuring wheel 1101 moves up, down, slides, and rotates on the guide rail body 1 along with the limiting slide 4. The speed sensor 1102 calculates the elevator's lifting speed through the speed measuring wheel 1101. The spring rod 10 ensures that the brake block 6 slides to the right side of the moving groove 7 to prevent affecting the elevator's lifting speed.

[0022] Working principle: When using this type of elevator guide rail braking device, firstly, the guide rail body 1 is installed on the wall through the mounting plate 2. Bolts are evenly arranged on the mounting plate 2 to ensure a stable fixation. The limiting slide 4 is installed on the load-bearing structure of the elevator through the connecting block 5. The speed measuring wheel 1101 slides and rotates on the guide rail body 1 along with the limiting slide 4. The speed sensor 1102 calculates the elevator's lifting speed through the speed measuring wheel 1101. The spring rod 10 ensures that the brake block 6 slides to the right side of the moving groove 7 to prevent affecting the elevator's lifting speed. When the elevator car speed exceeds 115% of the rated value, braking is triggered. The hydraulic rod 9 pushes the wedge block 8 upward, and the brake block 6 is pushed to the left by the wedge block 8. The brake block 6 is pressed against the brake groove 3. The rough wear-resistant layer on the outer surface of the brake block 6 and the inner surface of the brake groove 3 increases the friction force, resulting in rapid braking. The wedge block 8 slides on the pad 12. The pad 12 bears the lateral pressure, reducing the stress on the hydraulic rod 9 and improving the braking effect.

Claims

1. An elevator guide rail brake device comprising a guide rail body (1) and a limit chute (4), characterized in that, The left side of the guide rail body (1) is provided with a mounting plate (2), and the mounting plate (2) is welded with the guide rail body (1), the limiting sliding groove (4) is slidably connected to the periphery of the guide rail body (1), and the right side of the inside of the guide rail body (1) is provided with a brake groove (3), the right side of the brake groove (3) is provided with a brake block (6), and the front and back sides of the brake block (6) are provided with a moving groove (7).

2. An elevator guide rail braking device according to claim 1, characterized in that The right side of the brake block (6) is provided with a wedge block (8), and the lower side of the wedge block (8) is provided with a hydraulic rod (9).

3. An elevator guide rail braking device according to claim 2, characterized in that The right side of the wedge block (8) is provided with a pad block (12), and the pad block (12) is slidably connected with the wedge block (8).

4. The elevator guide rail braking apparatus according to claim 1, characterized by The right side of the limiting sliding groove (4) is provided with a connecting block (5), and the connecting block (5) is welded with the limiting sliding groove (4).

5. The elevator guide rail braking apparatus according to claim 1, wherein The upper side of the brake block (6) is provided with a spring rod (10), and the spring rod (10) is inlaidly connected with the brake block (6).

6. The elevator guide rail braking apparatus according to claim 1, wherein The inside of the limiting sliding groove (4) is provided with a monitoring assembly (11), and the monitoring assembly (11) is inlaidly connected with the limiting sliding groove (4).

7. An elevator guide rail braking device according to claim 6, characterized in that The monitoring assembly (11) comprises a speed measuring wheel (1101) and a rotating speed sensor (1102), and the right side of the speed measuring wheel (1101) is provided with the rotating speed sensor (1102).

Images