An electromechanical interlock door locking device for an elevator material lift

Abstract

The application relates to the elevator technical field and discloses an electromechanical linkage door lock device of an elevator material ladder, which comprises a frame body, two guide frames are arranged in the frame body, two oil cylinders for pushing the guide frames to move upwards along the frame body are fixedly connected to the bottom of the frame body, a lifting platform is fixedly connected to the bottom of each guide frame, and guardrails are fixedly connected to the upper surfaces of the lifting platform at both sides. The application can automatically open and close the door on the lifting platform, and the staff does not need to manually open and close the door, so that the staff can be prevented from falling and being hurt, the safety of the elevator is improved, the door can be prevented from being opened by mistake during the lifting of the lifting platform, the safety of the elevator is further improved, the staff can be prevented from rolling down from the space between the connecting rod and the sliding rod, and the safety of the elevator is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of elevator technology, specifically to an electromechanical linkage door lock device for a material elevator. Background Technology

[0002] There are many types of elevators, including material elevators, which are devices suitable for transporting materials in low-rise buildings and are mainly used in prefabricated buildings.

[0003] Most of the material hoists commonly found on the market have manually operated doors, meaning the doors are external gates that are manually opened and closed. Sometimes, for convenience, people leave the doors unlocked during hoisting operations. During hoisting, the material hoist does not run smoothly, especially when it is first started, and it is prone to shaking, which can cause people to fall and get injured, seriously endangering their lives. Therefore, it is very necessary to propose an electromechanical linkage door lock device for material hoists. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides an electromechanical linkage door lock device for a material elevator, primarily designed to solve the problem of backpacks failing to adequately protect drinking water cups during travel.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] An electromechanical linkage door lock device for a material elevator includes a frame, with two guide frames inside the frame. Two hydraulic cylinders are fixedly connected to the bottom of the frame to push the guide frames upwards along the frame. A lifting platform is fixedly connected to the bottom of the two guide frames. Guardrails are fixedly connected to both sides of the upper surface of the lifting platform. Electric telescopic rods are fixedly connected to both ends of the guardrails on the upper surface of the lifting platform. Connectors are fixedly connected to one end of the telescopic sections of multiple electric telescopic rods. A connecting rod is rotatably connected to one side of the connecting head. A sliding rod is rotatably connected to one end of the connecting rod. A slider is fixedly connected to the bottom end of the sliding rod. A guide groove is formed on the upper surface of the lifting platform, and the slider is slidably connected to the guide groove. A locking assembly for fixing the sliding rod is provided at the top of the connecting rod. Connecting assemblies for powering the electric telescopic rods are provided on both sides of the frame. A guardrail assembly is provided between the connecting rod and the sliding rod.

[0009] Furthermore, the locking assembly includes a fixing rod, which is fixedly connected to the top of the connecting rod. A sliding plate is slidably connected to the outside of the fixing rod, and an insert rod is fixedly connected to the bottom of the sliding plate. The top of the sliding plate has an insertion hole, and the insert rod passes through the connecting rod and is inserted into the insertion hole. The bottom of the sliding plate has a first mounting groove, in which a magnetic block is installed. The top of the connecting rod, located directly below the magnetic block, has a second mounting groove, in which an electromagnet that repels the magnetic block is installed.

[0010] Based on the aforementioned solution, the connecting component includes multiple first mounting holes, which are respectively opened on the inner walls of both sides of the frame. The multiple first mounting holes are evenly and symmetrically distributed, and each of the multiple first mounting holes is equipped with a first contact. Each side of the lifting platform has two second mounting holes, and each of the multiple second mounting holes is equipped with a second contact that can fit against the first contact. The first contact and the second contact are electrically connected, and the second contact is electrically connected to the electric telescopic rod. The second contact is electrically connected to the electromagnet.

[0011] As a further embodiment of the present invention, a spring is sleeved on the outer side of the fixing rod, and the two ends of the spring are respectively fixed to the sliding plate and the fixing rod.

[0012] Furthermore, the fence assembly includes a first clearance groove, which is located at the bottom of the connecting rod. A sliding tube is rotatably connected within the first clearance groove, and a moving rod is slidably connected within the sliding tube. A second clearance groove is provided on one side of the sliding rod, and a first stop bar is rotatably connected within the second clearance groove. A second stop bar is rotatably connected to one end of the first stop bar, and a fixed frame is rotatably connected to one end of the second stop bar. The fixed frame is fixed to the lifting platform, and the rotating parts of the first and second stop bars are in contact with the moving rod.

[0013] Based on the aforementioned scheme, the end of the connecting rod near the electric telescopic rod is provided with an inclined surface, so that the connecting rod and the electric telescopic rod can be placed horizontally.

[0014] As a further embodiment of the present invention, rollers are fixedly connected to both sides of the slider, and the rollers roll along the guide groove.

[0015] Furthermore, a guardrail is fixedly connected to the top of the guardrail.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, the present invention provides an electromechanical linkage door lock device for a material elevator, which has the following advantages:

[0018] 1. With the electric telescopic rod in place, the extension of the electric telescopic rod pushes the connecting rod upward. The connecting rod then drives the sliding rod to move along the guide groove towards the electric telescopic rod via the slider. At the same time, the connecting rod and the sliding rod rotate, keeping them horizontal with the electric telescopic rod, thus opening the door on the lifting platform. When the electric telescopic rod retracts, it closes the door on the lifting platform, thus automatically opening and closing the door without requiring manual operation by staff. This prevents staff from falling and causing injury, thereby improving the safety of the lifting platform.

[0019] 2. By using the locking assembly, the connecting rod and the slide rod are locked together, preventing them from rotating. This avoids accidental opening of the door during the lifting process and further improves the safety of the lift.

[0020] 3. By installing the fence components, when the connecting rod and sliding rod are closed at a 90-degree angle, the fence components will protect the space between the connecting rod and sliding rod, thereby preventing workers from rolling down from the space between the connecting rod and sliding rod, and greatly improving the safety of the elevator.

[0021] 4. By setting up the rollers, when the slide bar moves in the guide groove via the slider, the rollers will roll in the guide groove, thereby reducing the friction when the slide bar moves and preventing the slide bar from getting stuck. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of an electromechanical linkage door lock device for a material elevator proposed in this invention;

[0023] Figure 2 This is a partially enlarged structural schematic diagram of an electromechanical linkage door lock device for a material elevator proposed in this invention;

[0024] Figure 3 This is an enlarged schematic diagram of the sliding tube structure of the electromechanical linkage door lock device of the material elevator proposed in this invention;

[0025] Figure 4 This is a partial cross-sectional view of the electromechanical linkage door lock device of a material elevator proposed in this invention;

[0026] Figure 5 This is an enlarged schematic diagram of the magnetic block structure of the electromechanical linkage door lock device of the material elevator proposed in this invention.

[0027] In the diagram: 1. Frame; 2. Guide frame; 3. Hydraulic cylinder; 4. First mounting hole; 5. First contact point; 6. Lifting platform; 7. Guardrail; 8. Second contact point; 9. Second mounting hole; 10. Guide groove; 11. Sliding rod; 12. Connecting rod; 13. Fixing frame; 14. Electric telescopic rod; 15. Connector; 16. Guardrail; 17. Inclined surface; 18. First clearance groove; 19. Sliding tube; 20. Second clearance groove; 21. Roller; 22. Sliding block; 23. First stop bar; 24. Moving rod; 25. Second stop bar; 26. Spring; 27. Fixing rod; 28. Slide plate; 29. ​​Insertion rod; 30. Insertion hole; 31. First mounting groove; 32. Second mounting groove; 33. Electromagnet; 34. Magnetic block. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Reference Figures 1-5An electromechanical linkage door lock device for a material elevator includes a frame 1. Two guide frames 2 are installed inside the frame 1. Two hydraulic cylinders 3, which push the guide frames 2 upwards along the frame 1, are bolted to the bottom of the frame 1. A lifting platform 6 is bolted to the bottom of the two guide frames 2. Guardrails 16 are bolted to the upper surface of the lifting platform 6 on both sides. Electric telescopic rods 14 are bolted to both ends of the guardrails 16 on the upper surface of the lifting platform 6. Connectors 15 are bolted to one end of the telescopic parts of multiple electric telescopic rods 14. A connecting rod 12 is rotatably connected to one side of the head 15. A sliding rod 11 is rotatably connected to one end of the connecting rod 12. A slider 22 is welded to the bottom end of the sliding rod 11. A guide groove 10 is provided on the upper surface of the lifting platform 6, and the slider 22 is slidably connected to the guide groove 10. A locking assembly for fixing the sliding rod 11 is provided at the top of the connecting rod 12. Connecting assemblies for powering the electric telescopic rod 14 are provided on both sides of the frame 1. A fence assembly is provided between the connecting rod 12 and the sliding rod 11. The extension of the hydraulic cylinder 3 pushes the guide frame 2 to move upward along the frame 1, and the frame 1 will drive the lifting platform 6 to move upward. When the lifting platform 6 rises to a certain height, it will supply power to the electric telescopic rod 14 through the connecting assembly, and the locking assembly will no longer lock the connecting rod 12 and the sliding rod 11. The electric telescopic rod 14 will then extend, pushing the connecting head 15 upward. The connecting head 15 will drive the connecting rod 12 upward, and the connecting rod 12 will rotate with the connecting head 15. At the same time, when the electric telescopic rod 14 is powered on, the moving connecting rod 12 will drive the sliding rod 11 to move along the guide groove 10 through the slider 22. The sliding rod 11 will also rotate with the connecting rod 12. The rotation between the two rods causes the sliding rod 11 and connecting rod 12 to become vertical, keeping them horizontal with the electric telescopic rod 14, thus no longer obstructing the lifting platform 6. At this time, the staff can get on and off the lifting platform 6. When the electric telescopic rod 14 retracts, the connecting rod 12 and sliding rod 11 become vertical, thus blocking the lifting platform 6 and closing the door. This allows the door on the lifting platform 6 to open and close automatically without the need for manual opening and closing by the staff, thereby preventing staff from falling and getting injured, and improving the safety of the lifting machine.

[0030] In this invention, the locking assembly includes a fixing rod 27, which is welded to the top of the connecting rod 12. A sliding plate 28 is slidably connected to the outside of the fixing rod 27. A plug rod 29 is welded to the bottom of the sliding plate 28. A plug hole 30 is provided at the top of the sliding rod 11, and the plug rod 29 passes through the connecting rod 12 and is inserted into the plug hole 30. A first mounting groove 31 is provided at the bottom of the sliding plate 28, and a magnet 34 is installed in the first mounting groove 31. A second mounting groove 34 is provided at the top of the connecting rod 12, located directly below the magnet 34. The second mounting slot 32 contains an electromagnet 33 that repels the magnetic block 34. When the electric telescopic rod 14 is energized, the electromagnet 33 is energized. Since the electromagnet 33 repels the magnetic block 34, the electromagnet 33 will push the magnetic block 34 upward along the fixed rod 27 via the sliding plate 28. The sliding plate 28 will drive the insertion rod 29 upward, so that the insertion rod 29 is in the insertion hole 30, thereby no longer locking the connecting rod 12 and the sliding rod 11.

[0031] The connecting assembly includes multiple first mounting holes 4, which are respectively opened on the inner walls of both sides of the frame 1. The multiple first mounting holes 4 are evenly and symmetrically distributed, and each of the multiple first mounting holes 4 contains a first contact 5. Two second mounting holes 9 are opened on each side of the lifting platform 6, and each of the multiple second mounting holes 9 contains a second contact 8 that can abut against the first contact 5. The first contact 5 and the second contact 8 are electrically connected, and the second contact 8 is electrically connected to the electric telescopic rod 14 and the electromagnet 33. When the lifting platform 6 rises, it causes the second contact 8 to move upwards. When the second contact 8 moves upwards and abuts against the first contact 5, this… When the electric telescopic rod 14 is energized, a spring 26 is sleeved on the outside of the fixed rod 27, and the two ends of the spring 26 are fixed to the slide plate 28 and the fixed rod 27 respectively. When the slide plate 28 moves upward, it will compress the spring 26. When the electromagnet 33 is de-energized, the slide plate 28 will reset under the action of gravity. At the same time, the slide plate 28 will be assisted in resetting under the action of the spring 26. The fence assembly includes a first clearance groove 18, which is opened at the bottom of the connecting rod 12. A sliding tube 19 is rotatably connected in the first clearance groove 18, and a moving rod 24 is slidably connected in the sliding tube 19. A second clearance groove 20 is opened on one side of the sliding rod 11. A first stop lever 23 is rotatably connected, and a second stop lever 25 is rotatably connected to one end of the first stop lever 23. A fixed frame 13 is rotatably connected to one end of the second stop lever 25, and the fixed frame 13 is fixed to the lifting platform 6. The rotating parts of the first stop lever 23 and the second stop lever 25 are in contact with the moving rod 24. When the sliding rod 11 moves, it pushes the first stop lever 23 to move, and the first stop lever 23 will rotate with the sliding rod 11. At the same time, the first stop lever 23 will rotate with the second stop lever 25. When the second stop lever 25 rotates with the first stop lever 23, it pushes the moving rod 24 into the slide tube 19, thereby causing the moving rod 24 and the slide tube 19 to move together. When the slide bar 11 is reset, the moving bar 24 will move downward under the action of gravity, thereby pushing the first stop bar 25 and the second stop bar 23 to reset and rotate, thus blocking the connection bar 12 and the slide bar 11, preventing workers from rolling down the space between the connection bar 12 and the slide bar 11, greatly improving the safety of the elevator. The end of the connection bar 12 near the electric telescopic rod 14 is provided with a slope 17, so that the connection bar 12 and the electric telescopic rod 14 can be placed horizontally. Rollers 21 are fixed to both sides of the slider 22 by bolts, and the rollers 21 roll along the guide groove 10. The top of the guardrail 16 is fixed with a guard bar 7 by bolts.

[0032] The working principle of this embodiment is as follows: During use, the extension of the hydraulic cylinder 3 pushes the guide frame 2 to move upward along the frame 1. The frame 1 then drives the lifting platform 6 to move upward. The upward movement of the lifting platform 6 drives the second contact point 8 to move upward. When the second contact point 8 moves upward and comes into contact with the first contact point 5, the electric telescopic rod 14 is energized, causing it to extend and push the connector 15 upward. The connector 15 then drives the connecting rod 12 upward, and simultaneously, the connecting rod 12 and the connector 15 interact. When the electric telescopic rod 14 is energized, it energizes the electromagnet 33. Since the electromagnet 33 and the magnetic block 34 repel each other, the electromagnet 33 uses magnetic force to push the magnetic block 34 upwards along the fixed rod 27 via the sliding plate 28. The sliding plate 28 then moves the insertion rod 29 upwards, so that the insertion rod 29 is inserted into the insertion hole 30. Simultaneously, when the connecting rod 12 moves, it drives the sliding rod 11 to move along the guide groove 10 via the slider 22. At the same time, the sliding rod 11 rotates with the connecting rod 12. When the electric telescopic rod 14 retracts, the connecting rod 11 and the sliding rod 12 become vertical, keeping them horizontal with the electric telescopic rod 14, thus no longer obstructing the lifting platform 6. Workers can then ascend and descend from the lifting platform 6. When the electric telescopic rod 14 retracts, the connecting rod 12 and the sliding rod 11 become vertical, obstructing the lifting platform 6 and closing the door. This allows the door on the lifting platform 6 to open and close automatically, eliminating the need for manual operation and preventing workers from falling and injuring themselves, thus improving the safety of the lifting machine. However, when the lifting platform 6 continues to rise, the first contact 5 and the second contact 8 disengage, de-energizing the electromagnet 33. The electromagnet 33 then loses its magnetic force, and the sliding plate 28 moves downwards under gravity, causing the insertion rod 29 to insert into the insertion hole 30, locking the connecting rod 12 and the sliding rod 11 together. This prevents accidental opening of the door during the lifting process of the lifting platform 6, further improving the safety of the lifting machine.

[0033] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.

[0034] In the description herein, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] In the description herein, it should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electromechanical linkage door lock device for a material elevator, comprising a frame (1), characterized in that, The frame (1) is equipped with two guide frames (2). Two hydraulic cylinders (3) are fixedly connected to the bottom of the frame (1) to push the guide frames (2) to move upward along the frame (1). A lifting platform (6) is fixedly connected to the bottom of the two guide frames (2). Guardrails (16) are fixedly connected to the upper surface of the lifting platform (6) on both sides. Electric telescopic rods (14) are fixedly connected to the upper surface of the lifting platform (6) at both ends of the guardrails (16). A connector (15) is fixedly connected to one end of the telescopic part of each of the multiple electric telescopic rods (14). (15) is rotatably connected to a connecting rod (12) on one side, and a sliding rod (11) is rotatably connected to one end of the connecting rod (12). A slider (22) is fixedly connected to the bottom end of the sliding rod (11). A guide groove (10) is provided on the upper surface of the lifting platform (6), and the slider (22) is slidably connected to the guide groove (10). A locking assembly for fixing the sliding rod (11) is provided at the top of the connecting rod (12). A connecting assembly for powering the electric telescopic rod (14) is provided on both sides of the frame (1). A fence assembly is provided between the connecting rod (12) and the sliding rod (11). The connecting component includes a plurality of first mounting holes (4), which are respectively opened on the inner walls of both sides of the frame (1). The plurality of first mounting holes (4) are evenly and symmetrically distributed. A first contact (5) is installed in each of the plurality of first mounting holes (4). Two second mounting holes (9) are opened on both sides of the lifting platform (6). A second contact (8) that can fit with the first contact (5) is installed in each of the plurality of second mounting holes (9). The first contact (5) and the second contact (8) are electrically connected and the second contact (8) is electrically connected to the electric telescopic rod (14). The second contact (8) is electrically connected to the locking component. When the second contact (8) is not in contact with the first contact (5), the locking assembly is locked, the electric telescopic rod (14) is not energized, the connecting rod (12) is in a horizontal state, and the sliding rod (11) is in a vertical state, blocking the lifting platform (6). When the second contact (8) is in contact with the first contact (5), the locking assembly is unlocked, the electric telescopic rod (14) is energized, and the connecting rod (12) and the sliding rod (11) are driven to become vertical, and the lifting platform (6) is not blocked.

2. The electromechanical linkage door lock device for a material elevator according to claim 1, characterized in that, The locking assembly includes a fixing rod (27), which is fixedly connected to the top of the connecting rod (12). A sliding plate (28) is slidably connected to the outside of the fixing rod (27). A plug rod (29) is fixedly connected to the bottom of the sliding plate (28). A plug hole (30) is provided at the top of the sliding rod (11), and the plug rod (29) passes through the connecting rod (12) and is inserted into the plug hole (30). A first mounting groove (31) is provided at the bottom of the sliding plate (28). A magnetic block (34) is installed in the first mounting groove (31). A second mounting groove (32) is provided at the top of the connecting rod (12) directly below the magnetic block (34). An electromagnet (33) that repels the magnetic block (34) is installed in the second mounting groove (32). The second contact (8) is electrically connected to the electromagnet (33).

3. The electromechanical linkage door lock device for a material elevator according to claim 2, characterized in that, A spring (26) is sleeved on the outside of the fixing rod (27), and the two ends of the spring (26) are fixed to the slide plate (28) and the fixing rod (27) respectively.

4. The electromechanical linkage door lock device for a material elevator according to claim 1, characterized in that, The fence assembly includes a first clearance groove (18), which is located at the bottom of the connecting rod (12). A sliding tube (19) is rotatably connected inside the first clearance groove (18), and a moving rod (24) is slidably connected inside the sliding tube (19). A second clearance groove (20) is provided on one side of the sliding rod (11). A first stop rod (23) is rotatably connected inside the second clearance groove (20). A second stop rod (25) is rotatably connected to one end of the first stop rod (23). A fixed frame (13) is rotatably connected to one end of the second stop rod (25), and the fixed frame (13) is fixed to the lifting platform (6). The rotating parts of the first stop rod (23) and the second stop rod (25) are in contact with the moving rod (24).

5. The electromechanical linkage door lock device for a material elevator according to claim 1, characterized in that, The connecting rod (12) has an inclined surface (17) at one end near the electric telescopic rod (14), so that the connecting rod (12) and the electric telescopic rod (14) can be placed horizontally.

6. The electromechanical linkage door lock device for a material elevator according to claim 1, characterized in that, Rollers (21) are fixedly connected to both sides of the slider (22), and the rollers (21) roll along the guide groove (10).

7. The electromechanical linkage door lock device for a material elevator according to claim 1, characterized in that, The top of the guardrail (16) is fixedly connected to a guard rod (7).

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