Station stopping protection device for dumb waiter

Abstract

The utility model provides a dumb waiter stop protection device, which relates to the technical field of stop protection devices, and comprises a shaft frame, a plurality of uniformly distributed notches are arranged on the outer wall of the shaft frame in a penetrating manner, a connecting upright post is slidably mounted on the outer wall of the shaft frame, a car upright post is arranged at one end of the connecting upright post, and a chute is arranged on the car upright post close to the connecting upright post. And a second threaded rod is rotationally mounted in the sliding groove. Before fixing, a worker rotates a second rotating shaft, the second rotating shaft rotates to drive a second threaded rod to rotate, a sliding block moves downwards along a sliding groove, then a connecting stand column is driven to move downwards till a fixing device moves to the position beside a notch, then the worker rotates a first rotating shaft, and the first rotating shaft rotates to drive a first threaded rod to rotate; and then the two second L-shaped plates are driven to get close to each other until the connecting stand column is clamped, so that the connecting stand column and the car stand column are fixed more stably.

Description

Technical Field

[0001] The utility model relates to the technical field of stop protection devices, in particular to a stop protection device for a goods elevator. Background Art

[0002] A utility elevator is a fixed lifting device serving floors. It has a car. In terms of its size and structure, people are not allowed to enter the car. It is used to transport some light books, documents, food, etc., but people are not allowed to enter the car. It is controlled by a button outside the door. When the utility elevator fails, the staff needs to enter the utility elevator shaft frame for maintenance. During the maintenance of the utility elevator by the staff, if the utility elevator suddenly works or falls, it will affect the safety of the staff. The safety of the staff has always been a concern of people. The existing utility elevator cannot conveniently stop and protect the utility elevator during the maintenance process of the staff, and cannot effectively prevent the utility elevator from suddenly working or falling, which is not conducive to the maintenance of the utility elevator by the staff.

[0003] In the prior art, such as Chinese patent CN 218754356 U, a station stop protection device for a cargo elevator is disclosed, which includes a shaft frame and a car column slidably connected to the shaft frame, a fixed frame is installed on one end of the upper surface of the car column close to the shaft frame, a moving rod is slidably inserted between the middle parts of the two end surfaces of the fixed frame, a matching guide groove is provided in the middle part of the fixed frame corresponding to the connecting rod, a travel switch is installed on one side of the upper surface of the car column close to one end of the shaft frame, a first connecting block is fixed on one side of the moving block close to the travel switch, and a conical block is fixed on one end of the first connecting block close to the shaft frame. The beneficial effects of the utility model are: it is helpful to conveniently perform station stop protection on the cargo elevator, can effectively prevent the cargo elevator from suddenly working or falling and affecting the safety of the staff, and is conducive to the staff to safely repair or inspect the cargo elevator. However, the patent still has the following problems.

[0004] In the above-mentioned patent, although the patent provides a moving rod for fixing the car column and the shaft frame, effectively preventing the utility ladder from suddenly working or falling and affecting the safety of the workers, when the utility ladder fails and stops working, its stopping position may be that the moving rod has not moved to the groove of the shaft frame, so the device may find it difficult to fix the car column, which is not conducive to the stop protection of the utility ladder. Utility Model Content

[0005] The utility model aims to solve the problem in the prior art that when a goods elevator stops working due to a malfunction, its stopping position may be that the moving rod does not move to the notch of the shaft frame, so the device may find it difficult to fix the car column, and proposes a goods elevator stop protection device.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a station stop protection device for a miscellaneous elevator comprises a shaft frame, the outer wall of the shaft frame is penetrated with a plurality of evenly distributed slots, the outer wall of the shaft frame is slidably installed with a connecting column, a car column is arranged at one end of the connecting column, a slide groove is provided on the car column near the connecting column, a second threaded rod is rotatably installed inside the slide groove, the top of the second threaded rod penetrates the car column and is fixedly installed with a second rotating shaft, a slider is threadedly connected to the outer wall of the second threaded rod, and the slider is fixedly connected to the connecting column, two first L-shaped plates are symmetrically installed on both sides of the car column, a first threaded rod is rotatably installed between the two first L-shaped plates, one end of the first threaded rod penetrates the first L-shaped plate and is fixedly installed with the first rotating shaft, the outer wall of the first threaded rod is threadedly connected with two second L-shaped plates, a limiting rod is fixedly installed between the two first L-shaped plates, the limiting rod penetrates the two second L-shaped plates and is slidably connected to the two second L-shaped plates.

[0007] Preferably, a first fixed plate is fixedly installed on the top of the connecting column, a first spring is fixedly installed on the side of the first fixed plate close to the shaft frame, a push plate is fixedly installed on the side of the first spring away from the first fixed plate, a moving rod is fixedly installed inside the push plate, and one end of the moving rod is slidably connected to the first fixed plate.

[0008] Preferably, a limiting plate is fixedly mounted on a side of the moving rod away from the hoistway frame.

[0009] Preferably, a second fixing plate is fixedly installed on the top of the connecting column, a second spring is fixedly installed on a side of the second fixing plate close to the moving rod, and a clamping plate is fixedly installed on a side of the second spring away from the second fixing plate.

[0010] Preferably, a connecting rod is fixedly mounted on one side of the clamping plate close to the second spring, and an end of the connecting rod away from the clamping plate passes through the second fixing plate and is fixedly mounted with a pulling plate.

[0011] Preferably, a dustproof plate is fixedly installed on the top of the connecting column, and a side of the dustproof plate close to the car column and a side of the car column close to the connecting column are on the same plane.

[0012] Preferably, the first threaded rod is provided with two sections of threads with opposite textures, and the first threaded rod is connected to the two second L-shaped plates respectively through the two sections of threads with opposite textures.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, before fixing, the staff rotates the second rotating shaft, and the rotation of the second rotating shaft drives the second threaded rod to rotate, so that the slider moves downward along the slide groove, and then drives the connecting column to move downward until the fixing device moves to the side of the groove, and then the staff rotates the first rotating shaft, and the rotation of the first rotating shaft drives the first threaded rod to rotate, and then drives the two second L-shaped plates to approach each other until the connecting column is clamped, so that the fixation between the connecting column and the car column is more stable.

[0015] 2. In the utility model, when the connecting column moves downward, the dustproof plate on the top thereof moves downward together. Since the side of the dustproof plate close to the car column and the side of the car column close to the connecting column are on the same plane, the dustproof plate will block the chute when it moves downward, preventing external dust from entering the chute, thereby increasing the cleaning burden of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model provides an overall stereogram of a stop protection device for a goods ladder;

[0017] Figure 2 A three-dimensional diagram of a connecting column of a stop protection device for a goods ladder is proposed for the utility model;

[0018] Figure 3 A three-dimensional diagram of a car column of a goods elevator stop protection device is proposed for the utility model;

[0019] Figure 4 The utility model provides a cross-sectional view of a connecting column and a car column of a stop protection device for a goods elevator.

[0020] Legend: 1. Hoistway frame; 2. Connecting column; 3. Car column; 4. Notch; 5. First fixed plate; 6. First spring; 7. Moving rod; 8. Push plate; 9. Limit plate; 10. Second fixed plate; 11. Second spring; 12. Card plate; 13. Connecting rod; 14. Pull plate; 15. First L-shaped plate; 16. First threaded rod; 17. Second L-shaped plate; 18. First rotating shaft; 19. Limit rod; 20. Slide groove; 21. Second threaded rod; 22. Second rotating shaft; 23. Sliding block; 24. Dustproof plate. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0023] Embodiment 1, as Figure 1-Figure 4 As shown, the utility model provides a station stop protection device for a goods elevator, including a shaft frame 1, a plurality of evenly distributed notches 4 are formed through the outer wall of the shaft frame 1, a connecting column 2 is slidably mounted on the outer wall of the shaft frame 1, a car column 3 is arranged at one end of the connecting column 2, a slide groove 20 is formed on the car column 3 near the connecting column 2, a second threaded rod 21 is rotatably mounted inside the slide groove 20, the top of the second threaded rod 21 passes through the car column 3 and is fixedly mounted with a second rotating shaft 22, and a slider 2 is threadedly connected to the outer wall of the second threaded rod 21 3. The slider 23 is fixedly connected to the connecting column 2. Two first L-shaped plates 15 are symmetrically installed on both sides of the car column 3. A first threaded rod 16 is rotatably installed between the two first L-shaped plates 15. One end of the first threaded rod 16 penetrates the first L-shaped plate 15 and is fixedly installed with a first rotating shaft 18. The outer wall of the first threaded rod 16 is threadedly connected to two second L-shaped plates 17. A limiting rod 19 is fixedly installed between the two first L-shaped plates 15. The limiting rod 19 penetrates the two second L-shaped plates 17 and is slidably connected to the two second L-shaped plates 17.

[0024] The effect achieved by the entire embodiment 1 is that before fixing, the staff rotates the second rotating shaft 22, and the second rotating shaft 22 rotates, driving the second threaded rod 21 to rotate, so that the slider 23 moves downward along the slide groove 20, and then drives the connecting column 2 to move downward until the fixing device moves to the side of the groove 4, and then the staff rotates the first rotating shaft 18, and the rotation of the first rotating shaft 18 drives the first threaded rod 16 to rotate, and then drives the two second L-shaped plates 17 to approach each other until the connecting column 2 is clamped, so that the fixation between the connecting column 2 and the car column 3 is more stable.

[0025] Embodiment 2, as Figure 1-Figure 4 As shown, further, a first fixed plate 5 is fixedly installed on the top of the connecting column 2, a first spring 6 is fixedly installed on the side of the first fixed plate 5 close to the shaft frame 1, a push plate 8 is fixedly installed on the side of the first spring 6 away from the first fixed plate 5, a moving rod 7 is fixedly installed inside the push plate 8, and one end of the moving rod 7 is slidably plugged into the first fixed plate 5.

[0026] Furthermore, a limiting plate 9 is fixedly installed on one side of the moving rod 7 away from the hoistway frame 1 to prevent the moving rod 7 from leaving the first fixed plate 5 .

[0027] Furthermore, a second fixing plate 10 is fixedly installed on the top of the connecting column 2 , a second spring 11 is fixedly installed on a side of the second fixing plate 10 close to the moving rod 7 , and a clamping plate 12 is fixedly installed on a side of the second spring 11 away from the second fixing plate 10 .

[0028] Furthermore, a connecting rod 13 is fixedly mounted on one side of the clamping plate 12 close to the second spring 11 , and an end of the connecting rod 13 away from the clamping plate 12 passes through the second fixing plate 10 and is fixedly mounted with a pulling plate 14 .

[0029] Furthermore, a dustproof plate 24 is fixedly installed on the top of the connecting column 2 , and a side of the dustproof plate 24 close to the car column 3 is on the same plane as a side of the car column 3 close to the connecting column 2 .

[0030] Furthermore, the first threaded rod 16 is provided with two sections of threads with opposite textures, and the first threaded rod 16 is connected to the two second L-shaped plates 17 respectively through the two sections of threads with opposite textures.

[0031] The effect achieved by the entire embodiment 2 is that when the connecting column 2 moves downward, the dustproof plate 24 on its top moves downward together. Since the side of the dustproof plate 24 close to the car column 3 and the side of the car column 3 close to the connecting column 2 are on the same plane, the dustproof plate 24 will block the chute 20 when it moves downward, preventing external dust from entering the chute 20, thereby increasing the cleaning burden of the staff.

[0032] Working principle: Before fixing, the staff rotates the second shaft 22. The second shaft 22 rotates, driving the second threaded rod 21 to rotate, so that the slider 23 moves downward along the slide 20, and then drives the connecting column 2 to move downward until the fixing device moves to the side of the notch 4. Then the staff rotates the first shaft 18. The first shaft 18 rotates to drive the first threaded rod 16 to rotate, and then drives the two second L-shaped plates 17 to move closer to each other until the connecting column 2 is clamped, so that the connection between the connecting column 2 and the car column 3 is fixed more stably. When the connecting column 2 moves downward, the dustproof plate 24 on its top moves downward together. Since the side of the dustproof plate 24 close to the car column 3 is on the same plane as the side of the car column 3 close to the connecting column 2, when the dustproof plate 24 moves downward, it will block the slide 20 to prevent external dust from entering the slide 20, thereby increasing the cleaning burden of the staff. When fixing, the staff pulls the push plate 8, and the push plate 8 drives the moving rod 7 to move toward the slot 4, and the first spring 6 is stretched. When the push plate 8 contacts the inclined surface of the card plate 12, the card plate 12 moves toward the second fixed plate 10, and the second spring 11 is compressed. When the moving rod 7 enters the slot 4, the card plate 12 is reset under the elastic force of the second spring 11, and contacts the side of the push plate 8 close to the first spring 6 to fix the push plate 8. At this time, the connecting column 2 and the shaft frame 1 are fixed together. When the maintenance is completed, the staff pulls the pull plate 14, and the pull plate 14 drives the card plate 12 to move. At this time, the push plate 8 is reset under the elastic force of the first spring 6, and the moving rod 7 leaves the slot 4.

[0033] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A station stop protection device for a goods elevator, comprising a hoistway frame (1), characterized in that: The outer wall of the hoistway frame (1) is penetrated by a plurality of evenly distributed notches (4); a connecting column (2) is slidably mounted on the outer wall of the hoistway frame (1); a car column (3) is arranged at one end of the connecting column (2); a slide groove (20) is provided on the car column (3) near the connecting column (2); a second threaded rod (21) is rotatably mounted inside the slide groove (20); the top of the second threaded rod (21) penetrates the car column (3) and is fixedly mounted with a second rotating shaft (22); a slider (23) is threadedly connected to the outer wall of the second threaded rod (21); the slider (23) is connected to the connecting column (2) Fixed connection, two first L-shaped plates (15) are symmetrically installed on both sides of the car column (3), a first threaded rod (16) is rotatably installed between the two first L-shaped plates (15), one end of the first threaded rod (16) passes through the first L-shaped plate (15) and is fixedly installed with a first rotating shaft (18), the outer wall of the first threaded rod (16) is threadedly connected with two second L-shaped plates (17), a limiting rod (19) is fixedly installed between the two first L-shaped plates (15), the limiting rod (19) passes through the two second L-shaped plates (17) and is slidably connected to the two second L-shaped plates (17).

2. A storage elevator stop protection device according to claim 1, characterized in that: A first fixed plate (5) is fixedly installed on the top of the connecting column (2); a first spring (6) is fixedly installed on the side of the first fixed plate (5) close to the shaft frame (1); a push plate (8) is fixedly installed on the side of the first spring (6) away from the first fixed plate (5); a moving rod (7) is fixedly installed inside the push plate (8); one end of the moving rod (7) is slidably plugged into the first fixed plate (5).

3. A storage elevator stop protection device according to claim 2, characterized in that: A limiting plate (9) is fixedly mounted on a side of the moving rod (7) away from the hoistway frame (1).

4. A storage elevator stop protection device according to claim 1, characterized in that: A second fixing plate (10) is fixedly mounted on the top of the connecting column (2); a second spring (11) is fixedly mounted on a side of the second fixing plate (10) close to the moving rod (7); and a clamping plate (12) is fixedly mounted on a side of the second spring (11) away from the second fixing plate (10).

5. A storage elevator stop protection device according to claim 4, characterized in that: A connecting rod (13) is fixedly mounted on one side of the clamping plate (12) close to the second spring (11), and an end of the connecting rod (13) away from the clamping plate (12) passes through the second fixing plate (10) and is fixedly mounted with a pulling plate (14).

6. A storage elevator stop protection device according to claim 1, characterized in that: A dustproof plate (24) is fixedly mounted on the top of the connecting column (2), and a side of the dustproof plate (24) close to the car column (3) is on the same plane as a side of the car column (3) close to the connecting column (2).

7. A storage elevator stop protection device according to claim 1, characterized in that: The first threaded rod (16) is provided with two sections of threads with opposite textures, and the first threaded rod (16) is respectively connected to the two second L-shaped plates (17) via the two sections of threads with opposite textures.

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