Machine-room-less lift car locking device
By designing a machine room-less car locking device, and utilizing the cooperation between the pin shaft and the guide rail fixing plate, the problem of accidental car movement during machine room-less elevator maintenance is solved, ensuring safety and comfort, and improving the space utilization rate of the elevator.
Patent Information
- Application Number
- CN202423141219.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2034-12-19
AI Technical Summary
During maintenance and repair of machine-room-less elevators, the car may become uncontrollable and move unexpectedly, posing a safety hazard. Furthermore, existing devices cannot effectively prevent car movement, which could affect the safety of inspection or maintenance personnel.
Design a machine room-less car locking device, including a car upper beam, a fixed seat, a baffle, a switch plate, a limit switch, a pin, and a guide rail fixing plate. The car can be locked and unlocked by the cooperation of the pin and the guide rail fixing plate, ensuring the stability of the car in normal and maintenance conditions.
It effectively prevents the car from moving unexpectedly during maintenance, ensuring the safety of inspection or maintenance personnel, reducing the car frame height and increasing the car height, improving space utilization and ride comfort, and ensuring the stability and safety of elevator operation.
Smart Images
Figure CN223866143U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of locking device technology, and more specifically, to a machine room-less car locking device. Background Technology
[0002] During the maintenance and repair of machine-room-less elevators, the car may become uncontrollable or move unexpectedly. Therefore, a mechanical locking device must be installed to prevent the car from moving.
[0003] Therefore, in order to ensure the personal safety of inspection or maintenance personnel, a car locking device installed on the upper beam of the car frame is proposed. Taking into account the influence of the top floor height of the hoistway on the internal height of the car, this car locking device is designed to reduce the height of the car frame and increase the height of the car, so as to meet the customer's requirements for car height to the greatest extent. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a machine room-less car locking device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a machine room-less car locking device, including a car upper beam, two fixed seats installed on the car upper beam, a baffle installed between the two fixed seats, a switch plate installed on the other side of the fixed seats, a limit switch installed on the switch plate, a pin shaft supported by the two fixed seats, one end of the pin shaft aligned with the limit switch, a car straight beam installed on the car upper beam, a guide rail fixing plate installed on one side of the car straight beam, a car guide rail installed on the guide rail fixing plate, and pressure guide plates pressed against the guide rail fixing plate on both sides of the car guide rail.
[0006] Preferably, the guide rail fixing plate is made of 12mm thick steel plate.
[0007] Preferably, the guide rail fixing plate has a locking hole, and two fixing holes are provided on one side of the locking hole. Two small holes are provided above and below the two fixing holes.
[0008] Preferably, the pin includes a locking shaft and a handle, the handle being vertically welded to the locking shaft, and the locking shaft having a locking groove for locking the car with the guide rail fixing plate.
[0009] Preferably, both the pin and the handle are made of round steel.
[0010] Preferably, the fixing base is made of 6mm thick steel plate bent into shape. The fixing base has two upper beam connection holes on the left side, a positioning hole on the upper right side, and two plate connection holes below the positioning hole.
[0011] The technical effects and advantages of this utility model are as follows:
[0012] During the maintenance and repair of machine-room-less elevators, it can effectively prevent the car from going out of control and moving unexpectedly, strongly protect the personal safety of inspection or maintenance personnel, and build a reliable safety line for maintenance operations.
[0013] By lowering the car frame height and increasing the car height, the adverse effects of the top floor height of the hoistway on the interior height of the car are cleverly reduced, maximizing the customer's needs for car height and improving the utilization rate of car space and passenger comfort.
[0014] The guide rail fixing plate is made of 12mm thick steel plate, the pin shaft and handle are made of round steel, and the fixing seat is made of 6mm thick steel plate bent. The materials are of high quality and the structure is stable. With rigorous installation and precise matching, it can play a stable role in the car locking function for a long time and ensure the safe operation of the elevator. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0016] Figure 2 This is a side view of the present invention.
[0017] Figure 3 This is a structural diagram of the elevator of this utility model in its normal state.
[0018] Figure 4 For the present utility model Figure 2 Schematic diagram of the rotational structure in direction A.
[0019] Figure 5 This is a schematic diagram of the guide rail fixing plate of this utility model.
[0020] Figure 6 This is a schematic diagram of the pin structure of this utility model.
[0021] Figure 7 This is a schematic diagram of the left side structure of the fixing base of this utility model.
[0022] Figure 8 This is a schematic diagram of the right side structure of the fixing base of this utility model.
[0023] The attached diagram is labeled as follows: 1. Car upper beam; 2. Switch plate; 3. Limit switch; 4. Fixing base; 5. Baffle; 6. Pin; 7. Car straight beam; 8. Car guide rail; 9. Pressure guide plate; 10. Guide rail fixing plate; 11. Locking hole; 12. Fixing hole; 13. Small hole; 14. Locking shaft; 15. Handle; 16. Upper beam connecting hole; 17. Positioning hole; 18. Plate connecting hole. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] As attached Figures 1-8 The machine room-less car locking device shown includes a car upper beam 1, on which two fixed seats 4 are installed. A baffle 5 is installed between the two fixed seats 4. A switch plate 2 is installed on the other side of the fixed seats 4. A limit switch 3 is installed on the switch plate 2. The two fixed seats 4 jointly support a pin 6. One end of the pin 6 is aligned with the limit switch 3. A car straight beam 7 is installed on the car upper beam 1. A guide rail fixing plate 10 is installed on one side of the car straight beam 7. A car guide rail 8 is installed on the guide rail fixing plate 10. Pressure guide plates 9 are provided on both sides of the car guide rail 8 and pressed against the guide rail fixing plate 10. Two slots are opened on the baffle 5.
[0026] In practice, the pin 6 is inserted between the holes of the two fixed seats 4, and the fixed seats 4 are fixed to the upper beam 1 of the car with bolts. Then, the baffle 5 is installed, along with the switch plate 2 and the limit switch 3. The height of the pin 6 and the limit switch 3 is adjusted. Finally, the guide rail fixing plate 10 is installed and fixed with bolts and the guide plate 9, so that the pin 6 can pass smoothly through the hole of the guide rail fixing plate 10 to achieve the function of locking the car. The position where the car is locked should ensure that the height difference between the car top and the lowest part of the hoistway top is not less than 2 meters. When the car is in normal condition, the pin 6 is disengaged from the hole of the guide rail fixing plate 10, the handle 15 on the pin 6 is locked in the slot of the baffle 5, and the pin 6 presses against the limit switch 3. When the car is in maintenance condition, the pin 6 passes through the hole of the guide rail fixing plate 10, the handle 15 on the pin 6 is locked in another slot of the baffle 5, and the limit switch 3 is released to lock the car.
[0027] As attached Figure 5 As shown, the guide rail fixing plate 10 is made of 12mm thick steel plate. The guide rail fixing plate 10 has a locking hole 11. Two fixing holes 12 are opened on one side of the locking hole 11. Two small holes 13 are opened above and below the two fixing holes 12.
[0028] In practice, the locking hole 11 on the left side of the guide rail fixing plate 10 is used to insert the pin 6 to lock the car. The four round holes on the right side, namely small holes 13, are connected to the holes on the car guide rail 8 by fasteners to fix the car guide rail 8. The other two long holes, namely fixing holes 12, are fixed to the car guide rail 8 and the guide rail fixing plate 10 by pressing the guide plate 9 and fasteners.
[0029] As attached Figure 6 As shown, the pin 6 includes a locking shaft 14 and a handle 15. The handle 15 is vertically welded to the locking shaft 14. The locking shaft 14 has a locking groove for locking the car with the guide rail fixing plate 10. Both the pin 6 and the handle 15 are made of round steel.
[0030] In practice, the locking shaft 14 is made of round steel with a locking groove in the middle, which is used to lock the car in conjunction with the guide rail fixing plate 10. The handle 15 is also made of round steel and serves to fix the shaft.
[0031] As attached Figure 7 , 8 As shown, the fixing base 4 is made of 6mm thick steel plate bent into shape. There are two upper beam connection holes 16 on the left side of the fixing base 4, and a positioning hole 17 is provided on the upper right side of the fixing base 4. There are two plate connection holes 18 below the positioning hole 17.
[0032] In practice, there are two fixed seats 4, which are made symmetrically. The two upper beam connecting holes 16 on the left side of the fixed seat 4 are connected to the upper beam 1 of the car. The positioning hole 17 on the right side has a lateral positioning pin 6, while the other two plate connecting holes 18 are used to fix the baffle 5.
[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A machine room-less car locking device, comprising a car upper beam (1), characterized in that: Two fixed seats (4) are installed on the upper beam (1) of the car. A baffle (5) is installed between the two fixed seats (4). A switch plate (2) is installed on the other side of the fixed seat (4). A limit switch (3) is installed on the switch plate (2). The two fixed seats (4) jointly support a pin (6). One end of the pin (6) is aligned with the limit switch (3). A car straight beam (7) is installed on the upper beam (1). A guide rail fixing plate (10) is installed on one side of the car straight beam (7). A car guide rail (8) is installed on the guide rail fixing plate (10). Pressure guide plates (9) are provided on both sides of the car guide rail (8) and pressed onto the guide rail fixing plate (10).
2. The machine room-less car locking device according to claim 1, characterized in that: The guide rail fixing plate (10) is made of 12mm thick steel plate.
3. The machine room-less car locking device according to claim 1, characterized in that: The guide rail fixing plate (10) is provided with a locking hole (11), and two fixing holes (12) are provided on one side of the locking hole (11). Two small holes (13) are provided above and below the two fixing holes (12).
4. The machine room-less car locking device according to claim 1, characterized in that: The pin (6) includes a locking shaft (14) and a handle (15). The handle (15) is vertically welded to the locking shaft (14). The locking shaft (14) has a locking groove for locking the car with the guide rail fixing plate (10).
5. The machine room-less car locking device according to claim 1, characterized in that: Both the pin (6) and the handle (15) are made of round steel.
6. The machine room-less car locking device according to claim 1, characterized in that: The fixing seat (4) is made of 6mm thick steel plate bent. There are two upper beam connection holes (16) on the left side of the fixing seat (4), and a positioning hole (17) is provided on the upper right side of the fixing seat (4). There are two plate connection holes (18) below the positioning hole (17).