Two-way speed limiter with overspeed protection structure

Abstract

This utility model provides a bidirectional speed limiter with an overspeed protection structure, relating to the field of safety protection equipment technology. It includes a base and a mounting bracket. A connecting bracket is fixedly mounted on the surface of the base. The bidirectional speed limiter body is disposed on the inner side of the mounting bracket, and a connecting seat is disposed on the inner side of the connecting bracket. In this utility model, a protrusion is provided on the lower surface of the mounting bracket, and a matching groove is formed on the side of the connecting seat. This allows the mounting bracket to slide along the groove and achieve initial positioning. Then, the motor is started, causing its output end to drive the bidirectional lead screw to rotate, causing the mounting block to move the limiting rod, allowing the limiting rod to insert into the limiting hole, thereby limiting and fixing the bidirectional speed limiter body. When maintenance is required, the motor is reversed, causing the limiting rod to retract from the limiting hole. Simultaneously, the mounting bracket can easily slide out along the groove, facilitating quick disassembly of the bidirectional speed limiter body, significantly reducing maintenance difficulty and shortening maintenance time.

Description

Technical Field

[0001] This utility model relates to the field of safety protection equipment technology, and in particular to a two-way speed limiter with an overspeed protection structure. Background Technology

[0002] With the development of modern industry and urban construction, vertical transportation equipment such as elevators and lifting platforms are widely used in various buildings and large-scale machinery. Among them, the speed governor, as one of the core components of the elevator safety system, is mainly used to monitor the running speed of the car or vehicle in real time and to trigger the braking device in time when overspeed occurs, so as to prevent safety accidents caused by loss of control.

[0003] In the existing technology, traditional speed limiters usually adopt a fixed installation structure, which is difficult to adapt to the installation environment and layout of different equipment. In terms of maintenance, the disassembly and installation process is cumbersome, and maintenance personnel need to use special tools to complete the replacement operation, which affects the maintainability and efficiency of the equipment and consumes a lot of manpower and time costs. At the same time, it affects the maintenance efficiency and normal operation of the equipment, thus requiring improvement. Utility Model Content

[0004] This utility model mainly provides a two-way speed limiter for overspeed protection structure of safety protection equipment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a bidirectional speed limiter with an overspeed protection structure, comprising a base and a mounting bracket. A connecting bracket is fixedly mounted on the surface of the base. The bidirectional speed limiter body is disposed on the inner side of the mounting bracket. A connecting seat is disposed on the inner side of the connecting bracket. A protrusion is fixedly mounted on the lower surface of the mounting bracket. A groove is formed on the side of the connecting seat. A mounting plate is fixedly mounted on the side of the connecting seat away from the groove. A mounting block is disposed on the side of the mounting plate. A limiting rod is fixedly mounted on the side of the mounting block. A limiting hole is formed on the side of the protrusion. A sliding block is slidably connected inside the mounting plate. A bidirectional lead screw is rotatably connected inside the mounting plate. A motor is fixedly mounted on the side of the mounting plate.

[0006] Preferably, the protrusion and the groove are slidably connected. This structural design allows the mounting bracket to slide quickly along the groove direction on the connecting seat, achieving initial positioning and installation.

[0007] Preferably, the limiting rod and the limiting hole are slidably connected, and there are two sets of limiting rods and limiting holes. Through the cooperation of the two sets of limiting rods and limiting holes, the stability of the connection between the two is further enhanced after the mounting bracket and the connecting seat are initially positioned.

[0008] Preferably, the side of the sliding block is fixedly connected to the side of the mounting block. By fixing the sliding block to the mounting block, the sliding of the sliding block within the mounting plate can directly drive the mounting block to move synchronously.

[0009] Preferably, the output end of the motor is fixedly connected to one end of the bidirectional lead screw, and the bidirectional lead screw is threadedly connected to the sliding block. The motor drives the bidirectional lead screw to rotate, and the rotational motion of the lead screw is converted into the linear motion of the sliding block by utilizing the thread transmission principle.

[0010] Preferably, movable blocks are fixedly installed on both sides of the connecting seat, and an adjusting rod is rotatably connected inside the connecting frame. An adjusting head is fixedly installed at one end of the adjusting rod, and a guide rod is fixedly installed inside the connecting frame. By rotating the adjusting head, the adjusting rod can be driven to rotate. The movable block can slide along the direction of the guide rod inside the connecting frame through the threaded connection between the adjusting rod and the movable block, thereby realizing flexible adjustment of the vertical position of the connecting seat.

[0011] Preferably, the adjusting rod and the moving block are threadedly connected, and the guide rod and the moving block are slidably connected. The threaded connection enables the adjusting rod to drive the moving block, allowing the moving block to perform precise displacement control under the action of the adjusting rod. The guide rod provides guidance and support for the sliding of the moving block.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, by setting a protrusion on the lower surface of the mounting bracket and opening a matching groove on the side of the connecting seat, the mounting bracket can slide along the groove and achieve initial positioning. Then, the motor is started so that its output end drives the bidirectional lead screw to rotate, causing the mounting block to move the limit rod and insert the limit rod into the limit hole, thereby limiting and fixing the bidirectional speed limiter body. When maintenance is required, the motor is operated in reverse so that the limit rod is withdrawn from the limit hole, and the mounting bracket can easily slide out along the groove, which facilitates quick disassembly of the bidirectional speed limiter body, greatly reducing the difficulty of maintenance and shortening the maintenance time.

[0014] 2. In this utility model, the position adjustment of the connecting seat on the connecting frame is realized by the threaded engagement of the adjusting rod and the moving block, and the sliding guidance of the guide rod and the moving block. The installation height of the speed limiter can be adjusted according to the working conditions on site. In particular, when repairing or replacing the speed limiter, it is convenient to remove the speed limiter from the base for replacement or repair. Attached Figure Description

[0015] Figure 1 A perspective view of a two-way speed limiter with an overspeed protection structure is provided for this utility model;

[0016] Figure 2This utility model provides exploded views of the mounting block, limit rod, bidirectional lead screw, and motor of a two-way speed limiter with an overspeed protection structure;

[0017] Figure 3 This utility model proposes a two-way speed limiter with an overspeed protection structure. Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 A cross-sectional view of a two-way speed limiter with an overspeed protection structure is provided for this utility model.

[0019] Legend: 1. Base; 2. Mounting bracket; 3. Connecting bracket; 301. Connecting seat; 4. Bidirectional speed limiter body; 5. Protrusion; 6. Groove; 7. Mounting plate; 8. Mounting block; 9. Limiting rod; 10. Limiting hole; 11. Sliding block; 12. Bidirectional lead screw; 13. Motor; 14. Moving block; 15. Adjusting rod; 16. Adjusting head; 17. Guide rod. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Please see Figures 1-4 This utility model provides a technical solution: a two-way speed limiter with an overspeed protection structure, including a base 1 and a mounting bracket 2. A connecting bracket 3 is fixedly mounted on the surface of the base 1. A two-way speed limiter body 4 is provided on the inner side of the mounting bracket 2. A connecting seat 301 is provided on the inner side of the connecting bracket 3. A protrusion 5 is fixedly mounted on the lower surface of the mounting bracket 2. A groove 6 is opened on the side of the connecting seat 301. A mounting plate 7 is fixedly mounted on the side of the connecting seat 301 away from the groove 6. A mounting block 8 is provided on the side of the mounting plate 7. A limiting rod 9 is fixedly mounted on the side of the mounting block 8. A limiting hole 10 is opened on the side of the protrusion 5. A sliding block 11 is slidably connected inside the mounting plate 7. A two-way lead screw 12 is rotatably connected inside the mounting plate 7. A motor 13 is fixedly mounted on the side of the mounting plate 7.

[0023] like Figure 3 As shown, the protrusion 5 and the groove 6 are slidably connected. This structural design allows the mounting bracket 2 to slide quickly along the direction of the groove 6 on the connecting seat 301, achieving initial positioning and installation.

[0024] like Figure 3 As shown, the limiting rod 9 and the limiting hole 10 are slidably connected. There are two sets of limiting rods 9 and limiting holes 10. Through the cooperation of the two sets of limiting rods 9 and limiting holes 10, the stability of the connection between the two is further enhanced after the mounting bracket 2 and the connecting seat 301 are initially positioned.

[0025] like Figure 3 As shown, the side of the sliding block 11 is fixedly connected to the side of the mounting block 8. By fixing the sliding block 11 to the mounting block 8, the sliding of the sliding block 11 within the mounting plate 7 can directly drive the mounting block 8 to move synchronously.

[0026] like Figure 3 As shown, the output end of the motor 13 is fixedly connected to one end of the bidirectional lead screw 12. The bidirectional lead screw 12 is threadedly connected to the sliding block 11. The motor 13 drives the bidirectional lead screw 12 to rotate, and the rotational motion of the lead screw is converted into the linear motion of the sliding block 11 by utilizing the principle of thread transmission.

[0027] like Figure 4 As shown, movable blocks 14 are fixedly installed on both sides of the connecting seat 301. An adjusting rod 15 is rotatably connected inside the connecting frame 3. An adjusting head 16 is fixedly installed at one end of the adjusting rod 15. A guide rod 17 is fixedly installed inside the connecting frame 3. By rotating the adjusting head 16, the adjusting rod 15 can be rotated. By using the threaded connection between the adjusting rod 15 and the movable block 14, the movable block 14 can slide along the direction of the guide rod 17 inside the connecting frame 3, thereby realizing the flexible adjustment of the vertical position of the connecting seat 301.

[0028] like Figure 4 As shown, the adjusting rod 15 is threadedly connected to the moving block 14, and the guide rod 17 is slidably connected to the moving block 14. The threaded connection enables the adjusting rod 15 to drive the moving block 14, allowing the moving block 14 to perform precise displacement control under the drive of the adjusting rod 15. The guide rod 17 provides guidance and support for the sliding of the moving block 14.

[0029] Compared with the prior art, the advantages and positive effects of this utility model are as follows.

[0030] The usage and working principle of this device are as follows: First, the base 1 is fixedly installed in a suitable position within the elevator shaft. The connecting frame 3 cooperates with the connecting seat 301 to provide overall support. The lower surface of the mounting frame 2 has a protrusion 5, and a corresponding groove 6 is provided on the side of the connecting seat 301. During installation, the protrusion 5 is aligned with the groove 6 and slid along the groove to initially position the mounting frame 2 on the connecting seat 301. Then, the motor 13 on the side of the mounting plate 7 is started. The output of the motor 13 drives the bidirectional lead screw 12 to rotate. The sliding block 11 moves axially under the drive of the bidirectional lead screw 12, simultaneously moving the mounting block 8 and the limiting rod 9. When the limiting rod 9 inserts into the limiting hole 10 on the protrusion 5, the mounting frame 2 is further locked in place. The main body 4 is securely mounted on the base 1 via the mounting bracket 2 and enters normal operation. When the speed limiter needs to be repaired or replaced, the reverse start motor 13 is activated, causing the bidirectional lead screw 12 to reverse. The sliding block 11 drives the limit rod 9 to exit from the limit hole 10, releasing the locking state. Then, the mounting bracket 2 is slid out along the direction of the convex groove 6, thus completing the disassembly of the speed limiter body. Furthermore, by rotating the adjusting rod 15 on the adjusting head 16, the adjusting rod 15 is threadedly connected to the moving block 14, causing the moving block 14 to slide along the direction of the guide rod 17 within the connecting bracket 3, driving the connecting seat 301 to move up and down, thereby adjusting it to a suitable height. Thus, when repairing or replacing the speed limiter, it can be easily removed from the base 1 for replacement or repair.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A two-way speed limiter with an overspeed protection structure, characterized in that, include: A base (1) and a mounting bracket (2) are provided. A connecting bracket (3) is fixedly installed on the surface of the base (1). A bidirectional speed limiter body (4) is provided on the inner side of the mounting bracket (2). A connecting seat (301) is provided on the inner side of the connecting bracket (3). A protrusion (5) is fixedly installed on the lower surface of the mounting bracket (2). A groove (6) is opened on the side of the connecting seat (301). A mounting plate (7) is fixedly installed on the side of the connecting seat (301) away from the groove (6). A mounting block (8) is provided on the side of the mounting plate (7). A limiting rod (9) is fixedly installed on the side of the mounting block (8). A limiting hole (10) is opened on the side of the protrusion (5). A sliding block (11) is slidably connected inside the mounting plate (7). A bidirectional lead screw (12) is rotatably connected inside the mounting plate (7). A motor (13) is fixedly installed on the side of the mounting plate (7).

2. The bidirectional speed limiter of the overspeed protection structure according to claim 1, characterized in that: The protrusion (5) and the groove (6) are slidably connected.

3. The bidirectional speed limiter of the overspeed protection structure according to claim 1, characterized in that: The limiting rod (9) is slidably connected to the limiting hole (10), and there are two sets of the limiting rod (9) and the limiting hole (10).

4. The bidirectional speed limiter of the overspeed protection structure according to claim 1, characterized in that: The side of the sliding block (11) is fixedly connected to the side of the mounting block (8).

5. The bidirectional speed limiter of the overspeed protection structure according to claim 1, characterized in that: The output end of the motor (13) is fixedly connected to one end of the bidirectional lead screw (12), and the bidirectional lead screw (12) is threadedly connected to the sliding block (11).

6. The bidirectional speed limiter of the overspeed protection structure according to claim 1, characterized in that: Movable blocks (14) are fixedly installed on both sides of the connecting seat (301), and an adjusting rod (15) is rotatably connected inside the connecting frame (3). An adjusting head (16) is fixedly installed at one end of the adjusting rod (15), and a guide rod (17) is fixedly installed inside the connecting frame (3).

7. The bidirectional speed limiter of the overspeed protection structure according to claim 6, characterized in that: The adjusting rod (15) is threadedly connected to the moving block (14), and the guide rod (17) is slidably connected to the moving block (14).

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