Emergency stop structure of elevator car

Abstract

The elevator car emergency stop structure comprises a main body, a friction block is arranged on the right side of the main body, the main body is fixedly connected with the friction block, a sliding rail groove is formed in the connecting position of the main body and the friction block, a cavity is formed in the main body, the right end of the cavity communicates with the sliding rail groove, and a first magnetic field generating piece is arranged at the top of the main body; a cavity is formed in the main body, a second magnetic field generating piece is arranged at the bottom of the cavity, a cover plate is arranged on the front face of the main body and fixedly connected with the front face of the main body through a plurality of fixing pieces, guide rails are correspondingly arranged on the cover plate and in the cavity, a locking piece is arranged between the two guide rails, and the locking piece is limited to move in the guide rails through a limiting disc. The cover plate is provided with a protection device, the protection device comprises a fixing block and a protection cover, the protection cover is arranged to protect the guide rail, and the situation that in daily use, foreign matter falls into the guide rail to affect movement of the locking piece, and consequently the locking piece cannot respond rapidly, and potential safety hazards are generated is prevented.

Description

Technical Field

[0001] This utility model belongs to the technical field of emergency stop structures, specifically relating to an emergency stop structure for an elevator car. Background Technology

[0002] The elevator car emergency stop mechanism is a crucial component of the elevator safety system, and its design and function directly impact the safety of passengers and maintenance personnel. As urban buildings continue to rise in height, the safety performance of elevators, as a vital tool for vertical transportation, becomes increasingly important. The elevator car emergency stop mechanism is designed to prevent the car from unexpectedly falling or coming to a sudden stop due to electrical failures, mechanical malfunctions, or operational errors. However, during daily use, foreign objects may fall into the guide rails, creating a safety hazard. Utility Model Content

[0003] The purpose of this utility model is to provide an emergency stop structure for elevator cars to solve the safety hazard problem mentioned in the background art, where foreign objects may fall into the guide rails during daily use.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] An elevator car emergency stop structure includes:

[0006] The main body has a friction block on its right side, and the main body and the friction block are fixedly connected. A slide rail groove is provided at the connection between the main body and the friction block. The main body has a cavity inside, and the right end of the cavity is connected to the slide rail groove. A first magnetic field generator is provided on the top of the main body, and a second magnetic field generator is provided at the bottom of the cavity. A cover plate is provided on the front of the main body, and the cover plate is fixedly connected to the front of the main body by multiple fasteners. Guide rails are provided on the cover plate and inside the cavity, and a locking member is provided between the two guide rails. The locking member is restricted to move within the guide rail by a limiting plate. A protective device is provided on the cover plate, and the protective device includes a fixing block and a protective cover.

[0007] As an optional implementation, the front of the main body is provided with two corresponding fixing blocks, and the two fixing blocks are provided with holes that penetrate the fixing blocks laterally.

[0008] As an optional implementation, a round rod is provided in each of the two holes, a positioning plate is provided at the left end of the round rod, the positioning plate is fixedly connected to the left end of the round rod, and a threaded hole is provided at the right end of the round rod.

[0009] As an optional implementation, a screw is screwed into the threaded hole, and a screwing disc is provided at the outer end of the screw, with the screwing disc and the outer end of the screw being fixedly connected.

[0010] As an optional implementation, a protective cover is provided on the rod body of the round rod. The top of the protective cover is fixedly connected to the rod body. The protective cover is recessed from the back to form a hollow cavity. A connecting block is provided at the bottom of the protective cover. A through hole is provided on the connecting block, and a screw is provided in the through hole.

[0011] As an optional implementation, the friction block has a friction plate on its inner side, and the friction plate has a positioning groove, so that the friction plate can be fitted into the inner side of the friction plate through the positioning groove.

[0012] As an optional implementation, the friction plate is provided with slots at both the top and bottom, and the friction block is provided with L-shaped connecting blocks at the top and bottom respectively, one end of which can be inserted into the slot.

[0013] As an optional implementation, the front of the friction block is provided with a square frame, the right side of the square frame is rotatably connected to the front of the friction block via a pivot, the left end of the square frame is provided with an anti-slip layer, the front of the friction plate is provided with a locking block, and the left end of the square frame can be flipped and locked onto the locking block.

[0014] Compared with the prior art, this utility model provides an elevator car emergency stop structure, which has the following features:

[0015] Beneficial effects:

[0016] 1. Improve safety: Protect the guide rail by setting a protective cover to prevent foreign objects from falling into the guide rail during daily use and affecting the movement of the locking parts, which could cause the locking parts to fail to respond quickly and create safety hazards.

[0017] 2. Easy to maintain: By adding a friction plate, the friction block located on one side of the slide rail groove can be protected, preventing the friction block from being inconvenient to maintain or having high maintenance costs due to the one-piece design after use and wear. In comparison, the removable and replaceable friction plate is more convenient to maintain and improves convenience. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a front cross-sectional plan view of the protective device of this utility model.

[0020] Figure 3 This is a front sectional view of the circular rod of this utility model.

[0021] Figure 4 This is a front cross-sectional planar structural diagram of the friction plate of this utility model.

[0022] Figure 5This is a three-dimensional structural diagram of the prototype of this utility model.

[0023] In the diagram: 1. Main body; 2. Friction block; 3. Slide rail groove; 4. Cavity; 5. First magnetic field generator; 6. Second magnetic field generator; 7. Cover plate; 8. Fixing component; 9. Guide rail; 10. Locking component; 11. Limiting plate; 12. Fixing block; 13. Hole; 14. Round rod; 15. Positioning plate; 16. Threaded hole; 17. Screw; 18. Twisting plate; 19. Protective cover; 20. Hollow cavity; 21. Connecting block; 22. Through hole; 23. Screw; 24. Friction plate; 25. Positioning groove; 26. Slot; 27. L-shaped connecting block; 28. Square frame; 29. ​​Rotating shaft; 30. Anti-slip layer; 31. Locking block. 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] This utility model provides, for example Figure 1-5 shown

[0026] An elevator car emergency stop structure includes a main body 1. A friction block 2 is located on the right side of the main body 1. The main body 1 and the friction block 2 are fixedly connected. A slide rail groove 3 is provided at the connection between the main body 1 and the friction block 2. A cavity 4 is provided inside the main body 1, and the right end of the cavity 4 communicates with the slide rail groove 3. A first magnetic field generator 5, which is a permanent magnet chuck, is located on the top of the main body 1. The first magnetic field generator 5 is non-magnetic when energized and is embedded in the top of the cavity 4. A second magnetic field generator 6, which is an electromagnetic chuck, is located at the bottom of the cavity 4. The second magnetic field generator 6 is located in the bottom of the cavity 4. A cover plate 7 is located on the front of the main body 1, which can cover the front of the cavity 4. The cover plate 7 is secured by multiple fasteners 8 and... The front of the main body 1 is fixedly connected. The cover plate 7 and the cavity 4 are respectively provided with guide rails 9. The lower half of the guide rail 9 is inclined and the upper half of the guide rail 9 is vertical. A locking member 10 is provided between the two guide rails 9. The locking member 10 can be magnetically attracted by the first magnetic field generator 5 and the second magnetic field generator 6. The locking member 10 can move in the guide rail 9 through both ends. The locking member 10 is restricted to move in the guide rail 9 by the limiting plate 11 on the front of the cover plate 7. The diameter of the limiting plate 11 is larger than the diameter of the guide rail 9. A protective device is provided on the cover plate 7. The protective device is used to prevent foreign objects from falling into the guide rail 9 during daily use and affecting the movement of the locking member 10, causing the locking member 10 to fail to respond quickly and creating a safety hazard. The protective device includes a fixing block 12 and a protective cover 19. During use, the emergency stop structure is fixedly installed at the four corners of the elevator car and slides on the elevator car's running rail via the slide rail groove 3. During normal operation, the first magnetic field generator 5 is energized but does not generate magnetism, while the second magnetic field generator 6 is energized and generates magnetism to attract the locking member 10. When the locking member 10 moves down along the guide rail 9 to the bottom, it is hidden in the cavity 4. At this time, the locking member 10 does not contact the slide rail, and the elevator car can move up and down normally. When it is necessary to stop the elevator car urgently, the first magnetic field generator 5 is not energized and does not generate magnetism, and the second magnetic field generator 6 is not energized and does not generate magnetism. At this time, the locking member 10 is attracted by the magnetism of the first magnetic field generator 5. The locking member 10 moves up along the guide rail 9 to the top. At this time, the right end of the locking member 10 is located in the slide rail groove 3 and makes contact with the slide rail, and the slide rail and friction block 2 also make contact. Under the joint clamping and friction action of the locking member 10 and the friction block 2, the elevator car can be stopped urgently.

[0027] like Figure 1 and Figure 2 As shown, the front of the main body 1 is provided with two corresponding fixing blocks 12, which are located above the guide rail 9. Figure 3As shown, two fixing blocks 12 have holes 13, which penetrate the fixing blocks 12 laterally. A round rod 14 is installed inside each hole 13. A positioning plate 15 is located at the left end of the round rod 14. The diameter of the positioning plate 15 is larger than the diameter of the hole 13. The positioning plate 15 is located at the left end of the left fixing block 12, limiting the movement of the round rod 14. The positioning plate 15 and the left end of the round rod 14 are fixedly connected. A threaded hole 16 is located at the right end of the round rod 14. A screw 17 is screwed into the threaded hole 16. A screwing plate 18 is located at the outer end of the screw 17. The diameter of the screwing plate 18 is larger than the diameter of the hole 13. The screwing plate 18 and the outer end of the screw 17 are fixedly connected. When the screw 17 is screwed into the threaded hole 16, the screwing plate 18 is located at the right end of the right fixing block 12, fixing and limiting the movement of the round rod 14. Figure 1 and Figure 2 As shown, a protective cover 19 is provided on the body of the round rod 14. The top of the protective cover 19 is fixedly connected to the body of the round rod 14. The protective cover 19 is recessed from the back to form a hollow cavity 20. The hollow cavity 20 can cover the guide rail 9 and the limiting plate 11. A connecting block 21 is provided at the bottom of the protective cover 19. The connecting block 21 is fixedly connected to the bottom of the protective cover 19. A through hole 22 is provided on the connecting block 21. A screw 23 is provided in the through hole 22. The protective cover 19 can be fixed by the screw 23 passing through the through hole 22 and screwing it into the front of the cover plate 7.

[0028] like Figure 1 and Figure 4 As shown, a friction plate 24 is provided on the inner side of the friction block 2, and a positioning groove 25 is provided on the friction plate 24. The friction plate 24 can be fitted into the inner side of the friction plate 24 through the positioning groove 25 to protect the part of the friction block 2 located in the slide rail groove 3, so as to avoid wear of the friction block 2 during use and thus avoid inconvenience in maintenance. The top and bottom of the friction plate 24 are provided with slots 26, and the right end of the slots 26 is provided with an opening. The top and bottom of the friction block 2 are respectively provided with L-shaped connecting blocks 27. One end of the L-shaped connecting block 27 is fixedly connected to the friction block 2, and the other end of the L-shaped connecting block 27 can be inserted into the slot 26, and the other end of the L-shaped connecting block 27 is fitted into the slot 26. The friction block 2 has a square frame 28 on its front side. The right side of the square frame 28 is rotatably connected to the front side of the friction block 2 via a pivot 29. The left side of the square frame 28 has an anti-slip layer 30. The friction plate 24 has a locking block 31 on its front side, which is fixedly connected to the front side of the friction plate 24. The left end of the square frame 28 can be flipped and latched onto the locking block 31. The friction plate 24 can be fixed to the inside of the friction block 2 through the combined action of the L-shaped connecting block 27 and the square frame 28. This design protects the side of the friction block 2 located in the slide rail groove 3, preventing inconvenience or high maintenance costs after wear. In comparison, the removable and replaceable friction plate 24 is more convenient to maintain.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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. An emergency stop structure for an elevator car, characterized in that, include: The main body (1) has a friction block (2) on its right side. The main body (1) and the friction block (2) are fixedly connected. A slide rail groove (3) is provided at the connection between the main body (1) and the friction block (2). A cavity (4) is provided inside the main body (1). The right end of the cavity (4) is connected to the slide rail groove (3). A first magnetic field generator (5) is provided on the top of the main body (1). A second magnetic field generator (6) is provided at the bottom of the cavity (4). The front of the body (1) is provided with a cover plate (7), which is fixedly connected to the front of the body (1) by multiple fasteners (8). The cover plate (7) and the cavity (4) are respectively provided with guide rails (9). A locking member (10) is provided between the two guide rails (9). The locking member (10) is restricted to move within the guide rails (9) by a limiting plate (11). The cover plate (7) is provided with a protective device, which includes a fixing block (12) and a protective cover (19).

2. The elevator car emergency stop structure according to claim 1, characterized in that: The front of the main body (1) is provided with two corresponding fixing blocks (12), and the two fixing blocks (12) are provided with holes (13), which penetrate the fixing blocks (12) laterally.

3. The elevator car emergency stop structure according to claim 2, characterized in that: A round rod (14) is provided in each of the two holes (13). A positioning plate (15) is provided at the left end of the round rod (14). The positioning plate (15) is fixedly connected to the left end of the round rod (14). A threaded hole (16) is provided at the right end of the round rod (14).

4. The elevator car emergency stop structure according to claim 3, characterized in that: A screw (17) is screwed into the threaded hole (16), and a screwing disc (18) is provided on the outer end of the screw (17). The screwing disc (18) and the outer end of the screw (17) are fixedly connected.

5. The elevator car emergency stop structure according to claim 4, characterized in that: The round rod (14) is provided with a protective cover (19) on its body. The top of the protective cover (19) is fixedly connected to the body of the round rod (14). The protective cover (19) is recessed from the back to form a hollow cavity (20). The bottom of the protective cover (19) is provided with a connecting block (21). The connecting block (21) is provided with a through hole (22). The through hole (22) is provided with a screw (23).

6. The elevator car emergency stop structure according to claim 1, characterized in that: The friction block (2) has a friction plate (24) on its inner side, and the friction plate (24) has a positioning groove (25). The friction plate (24) can be fitted into the inner side of the friction plate (24) through the positioning groove (25).

7. The elevator car emergency stop structure according to claim 6, characterized in that: The friction plate (24) is provided with slots (26) at the top and bottom, and the friction block (2) is provided with L-shaped connecting blocks (27) at the top and bottom respectively. One end of the L-shaped connecting block (27) can be inserted into the slot (26).

8. The elevator car emergency stop structure according to claim 7, characterized in that: The friction block (2) has a square frame (28) on its front side. The right side of the square frame (28) is rotatably connected to the front side of the friction block (2) via a pivot (29). The left end of the square frame (28) has an anti-slip layer (30). The front side of the friction plate (24) has a locking block (31). The left end of the square frame (28) can be flipped and locked onto the locking block (31).

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