Ratchet wheel type and pawl type escalator
Through the ratchet pawl structure and damper design, the escalator is prevented from reversing, and combined with the power-off switch and alarm buzzer, the problem of sudden reversing of the escalator is solved, safe shutdown and timely alarms are achieved, and the risk of passenger injury is reduced.
Patent Information
- Application Number
- CN202422126274.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-08-30
AI Technical Summary
The sudden reversal of the escalator during operation, causing the high risk of passengers falling, and the existing technology is difficult to effectively prevent such accidents.
The ratchet type pawl structure is adopted to prevent reversal by snails being stuck in the gear groove of the ratchet through movement, and the brake force is reduced in combination with a damper. It is equipped with a power-off switch and an alarm buzzer that automatically stops and alarms in the event of a fault.
Effectively prevent escalator reversal, reduce the risk of passengers falling, shut down timely and issue alarms, remind passengers and staff to ensure safety and maintenance.
Smart Images
Figure CN223060471U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of escalators, and particularly relates to a ratchet and pawl type escalator. Background Art
[0002] An escalator is composed of a chain conveyor with a special structure and two belt conveyors with special structures, and has a circulating moving staircase for upward or downward inclined conveying of passengers between different floors of a building by a fixed electric drive device. It is a continuous conveying machine for carrying people up and down. During long-term use of the escalator, the most common fault is that the escalator suddenly reverses during operation. Once the escalator reverses during operation, due to the action of inertia, passengers will fall, resulting in squeezing, bruising, and even death, and the consequences are very serious. Therefore, a ratchet and pawl type escalator is proposed, and the cooperation between the ratchet and the pawl can prevent the escalator from reversing. Content of the Utility Model
[0003] Aiming at the problems in the prior art, the utility model provides a ratchet and pawl type escalator, and the cooperation between the ratchet and the pawl can prevent the escalator from reversing.
[0004] The technical solution adopted by the utility model to solve its technical problems is a ratchet and pawl type escalator, which includes a ratchet and a pawl. The pawl is arranged below the ratchet. The pawl is movably installed on one side of a fixed seat. The fixed seat is arranged in an L-shaped structure. The bottom end of the pawl is fixedly connected with a spring. There are multiple springs. The bottom ends of the multiple springs are fixedly connected with the top surface of the horizontal end of the fixed seat. One side of the fixed seat is fixedly connected with the output end of a damper. The damper is fixedly installed on the top surface of a sliding seat. The top surface of the sliding seat is also fixedly installed with a power-off switch and an alarm buzzer.
[0005] By adopting the above technical solution, the ratchet and the pawl can be arranged to make the pawl movably stuck in the gear groove of the ratchet, which can avoid the ratchet from reversing. Through the arrangement of the damper, the sudden braking force generated by the contact between the ratchet and the pawl can be reduced, and people using the escalator can be prevented from suddenly falling due to inertia caused by the sudden braking of the escalator. Moreover, the power-off switch and the alarm buzzer can stop the escalator from running and emit an alarm sound after the pawl catches the ratchet. First, it can remind subsequent passengers not to take this escalator anymore. Second, it can remind the staff to come and maintain and repair the escalator in time.
[0006] Specifically, starting buttons are arranged on the sides of the power-off switch and the alarm buzzer close to the fixed seat. The power-off switch and the alarm buzzer are respectively arranged on both sides of the damper.
[0007] Specifically, the bottom end of the fixed seat is fixedly connected to the top end of the first slider. The first slider is slidably installed inside the first chute, and the first chute is formed on the top surface of the sliding seat.
[0008] By adopting the above technical solution, through the movement of the fixed seat by the first slider in the first chute, one end of the fixed seat can contact the power-off switch and the start button of the alarm buzzer, triggering the power-off switch and the alarm buzzer. After the power-off switch is triggered, the escalator will stop running, and after the alarm buzzer is triggered, it will emit an alarm sound.
[0009] Specifically, the sliding seat is movably installed on the top surface of the base. A second chute is formed at the top of the base, and a second slider is slidably installed inside the second chute.
[0010] Specifically, the top end of the second slider is fixedly connected to the bottom end of the sliding seat. An electric cylinder is fixedly installed at the top of the base. The output end of the electric cylinder is fixedly connected to one end of the piston push rod, and the other end of the piston push rod is fixedly connected to one end of the sliding seat.
[0011] By adopting the above technical solution, when the external power supply starts the electric cylinder, the start of the electric cylinder can drive the piston push rod and the sliding seat to push towards the ratchet. The sliding seat can make the pawl engage in the gear slot of the ratchet through the movement of the second slider in the second chute.
[0012] The beneficial effects of the present utility model are as follows:
[0013] (1) For the ratchet-type pawl-type escalator of the present utility model, the ratchet and the pawl are arranged such that the pawl can movably engage in the gear slot of the ratchet, which can prevent the ratchet from reversing. Through the setting of the damper, the sudden braking force generated by the contact between the ratchet and the pawl can be reduced, avoiding people using the escalator from falling suddenly due to inertia when the escalator suddenly brakes. Moreover, the power-off switch and the alarm buzzer are provided, which can stop the escalator from running and emit an alarm sound simultaneously after the pawl catches the ratchet. Firstly, it can remind subsequent passengers not to take this escalator anymore, and secondly, it can remind the staff to come and maintain and repair the escalator in time.
[0014] (2) For the ratchet-type pawl-type escalator of the present utility model, through the setting of the electric cylinder, the pawl can be pushed into the gear slot of the ratchet or withdrawn from the gear slot of the ratchet, which is convenient for the maintenance of the ratchet. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The present utility model will be further described below with reference to the drawings and embodiments.
[0016] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;
[0017] Figure 2 is a schematic plan view of the present utility model;
[0018] Figure 3 is a schematic structural view of the fixing seat of the present utility model;
[0019] In the figure: 1, ratchet wheel; 2, pawl; 3, fixing seat; 4, damper; 5, sliding seat; 6, second slider; 7, piston push rod; 8, electric cylinder; 9, second chute; 10, base; 11, first chute; 12, first slider; 13, spring; 14, power-off switch; 15, alarm buzzer; 16, start button. Specific embodiments
[0020] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0021] In order to prevent the escalator from reversing by the cooperation between the ratchet wheel and the pawl, as an embodiment of the present utility model, as Figures 1 - 3 shown, a ratchet-type pawl-type escalator of the present utility model includes a ratchet wheel 1 and a pawl 2. The pawl 2 is arranged below the ratchet wheel 1. The pawl 2 is movably installed on one side of a fixing seat 3. The fixing seat 3 is arranged in an L-shaped structure. The bottom end of the pawl 2 is fixedly connected to a spring 13. There are multiple springs 13. The bottom ends of the multiple springs 13 are fixedly connected to the top surface of the horizontal end of the fixing seat 3. One side of the fixing seat 3 is fixedly connected to the output end of a damper 4. The damper 4 is fixedly installed on the top surface of a sliding seat 5. The power-off switch 14 and the alarm buzzer 15 are also fixedly installed on the top surface of the sliding seat 5.
[0022] During use, the ratchet wheel 1 is fixedly sleeved on the rotating shaft of the escalator. When the ratchet wheel 1 rotates clockwise, it will press the pawl 2 downward. The pawl 2 will bounce back again through the elastic force of the spring 13 and latch into the gear groove of the next ratchet wheel 1. When the escalator reverses, the ratchet wheel 1 rotates counterclockwise. At this time, the gear of the ratchet wheel 1 abuts against one end of the pawl 2 and drives the pawl 2 and the fixing seat 3 to move towards the damper 4. The setting of the damper 4 can reduce the sudden braking force generated by the abutment between the ratchet wheel 1 and the pawl 2.
[0023] Exemplarily, as Figures 1 - 3 shown, the present utility model further includes that start buttons 16 are provided on one side of the power-off switch 14 and the alarm buzzer 15 close to the fixing seat 3. The power-off switch 14 and the alarm buzzer 15 are respectively arranged on both sides of the damper 4.
[0024] Exemplarily, as Figures 1 - 3As shown, the present utility model further includes that the bottom end of the fixed seat 3 is fixedly connected to the top end of the first slider 12, the first slider 12 is slidably installed inside the first chute 11, and the first chute 11 is formed on the top surface of the sliding seat 5.
[0025] During use, through the movement of the fixed seat 3 by the first slider 12 in the first chute 11, one end of the fixed seat 3 can be brought into contact with the power-off switch 14 and the start button 16 of the alarm buzzer 15, triggering the power-off switch 14 and the alarm buzzer 15. After the power-off switch 14 is triggered, the escalator will stop running. After the alarm buzzer 15 is triggered, it will emit an alarm sound. One is to remind the subsequent passengers not to take this escalator anymore, and the other is to remind the staff to come and maintain and repair the escalator in time.
[0026] Exemplarily, as Figures 1 - 3 As shown, the present utility model further includes that the sliding seat 5 is movably installed on the top surface of the base 10, a second chute 9 is formed on the top of the base 10, and a second slider 6 is slidably installed inside the second chute 9.
[0027] Exemplarily, as Figures 1 - 3 As shown, the present utility model further includes that the top end of the second slider 6 is fixedly connected to the bottom end of the sliding seat 5, an electric cylinder 8 is fixedly installed on the top of the base 10, the output end of the electric cylinder 8 is fixedly connected to one end of the piston push rod 7, and the other end of the piston push rod 7 is fixedly connected to one end of the sliding seat 5.
[0028] During use, the electric cylinder 8 is started through an external power supply. The start of the electric cylinder 8 can drive the piston push rod 7 and the sliding seat 5 to push towards the ratchet 1. The movement of the sliding seat 5 by the second slider 6 in the second chute 9 allows the pawl 2 to engage into the gear groove of the ratchet 1.
[0029] When the utility model is in use, first, the electric cylinder 8 is started through an external power supply. The start of the electric cylinder 8 can drive the piston push rod 7 and the sliding seat 5 to push towards the direction of the ratchet wheel 1. The movement of the sliding seat 5 through the second slider 6 in the second chute 9 allows the pawl 2 to be engaged in the gear groove of the ratchet wheel 1. When the ratchet wheel 1 rotates clockwise, it will press the pawl 2 downwards. The pawl 2 will then bounce back upwards through the elastic force of the spring 13 and be engaged in the gear groove of the next ratchet wheel 1. When the escalator reverses, the ratchet wheel 1 rotates counterclockwise. At this time, the gear of the ratchet wheel 1 abuts against one end of the pawl 2 and drives the pawl 2 and the fixed seat 3 to move towards the direction of the damper 4. The movement of the fixed seat 3 through the first slider 12 in the first chute 11 enables one end of the fixed seat 3 to contact the power-off switch 14 and the start button 16 of the alarm buzzer 15, and triggers the power-off switch 14 and the alarm buzzer 15. After the power-off switch 14 is triggered, the escalator will stop running. After the alarm buzzer 15 is triggered, it will emit an alarm sound. One is to remind the subsequent passengers not to take this escalator anymore, and the other is to remind the staff to come and maintain and repair the escalator in time.
[0030] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art of this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope claimed by the utility model. The scope claimed by the utility model is defined by the appended claims and their equivalents.
Claims
1. A ratchet and pawl type escalator, comprising a ratchet wheel (1) and a pawl (2), characterized in that, The ratchet pawl (2) is arranged below the ratchet wheel (1). The ratchet pawl (2) is movably installed on one side of the fixed seat (3). The fixed seat (3) is arranged in an L-shaped structure. The bottom end of the ratchet pawl (2) is fixedly connected with a spring (13). There are multiple springs (13). The bottom ends of the multiple springs (13) are fixedly connected with the top surface of the horizontal end of the fixed seat (3). One side of the fixed seat (3) is fixedly connected with the output end of a damper (4). The damper (4) is fixedly installed on the top surface of the sliding seat (5). An emergency power-off switch (14) and an alarm buzzer (15) are also fixedly installed on the top surface of the sliding seat (5).
2. A ratchet - type pawl - type escalator according to claim 1, characterized in that, On one side of the emergency power-off switch (14) and the alarm buzzer (15) close to the fixed seat (3), there is a start button (16). The emergency power-off switch (14) and the alarm buzzer (15) are respectively arranged on both sides of the damper (4).
3. A ratchet type pawl type escalator according to claim 1, characterized in that, The bottom end of the fixed seat (3) is fixedly connected with the top end of a first slider (12). The first slider (12) is slidably installed inside a first chute (11). The first chute (11) is opened on the top surface of the sliding seat (5).
4. A ratchet - type pawl - type escalator according to claim 1, characterized in that, The sliding seat (5) is movably installed on the top surface of the base (10). A second chute (9) is opened at the top of the base (10). A second slider (6) is slidably installed inside the second chute (9).
5. A ratchet type pawl type escalator according to claim 4, characterized in that, The top end of the second slider (6) is fixedly connected with the bottom end of the sliding seat (5). An electric cylinder (8) is fixedly installed on the top of the base (10). The output end of the electric cylinder (8) is fixedly connected with one end of a piston push rod (7). The other end of the piston push rod (7) is fixedly connected with one end of the sliding seat (5).