Landing door linkage locking device of construction hoist

Abstract

The utility model discloses a landing door linkage locking device of a construction hoist, which relates to the technical field of building construction and comprises a door frame, a sliding groove is arranged on the inner wall of the door frame, and a protection mechanism is arranged on the inner wall of the sliding groove. The protective mechanism comprises a displacement plate, the protective plate is arranged, the displacement plate can drive a rack to displace during displacement, the rack can drive a gear to rotate, the gear can drive a winding wheel to rotate, the winding wheel can wind a connecting rope while rotating, the connecting rope can drive the protective plate to move upwards on a plurality of sliding rods, and the protective plate can drive the sliding rods to move upwards. After the protection plate reaches a certain height, the protection state is relieved, so that normal passing of personnel is not limited, a proper protection means can be provided for the telescopic frame, and the situation that the telescopic frame collides with objects or personnel to be damaged or even cannot be normally stretched out and drawn back due to excessive damage is avoided; and the reliability of the equipment is greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, and in particular relates to a linkage locking device for the landing doors of a construction hoist. Background Technology

[0002] According to the published patent CN215101385U, a linkage device for the floor door and cage door of a construction hoist is described. The inner wall of the floor door frame is fixedly connected to a first square rod, and the outer wall of the first square rod is slidably connected to a first slider. When the housing reaches the position of the floor door frame, a second electric push rod is activated, inserting into a second slot on a second locking block. Then, a third electric push rod is activated to push a moving plate forward under the guidance of a slide rail. A connecting rod pushes a second slider to slide on the second square rod, thereby opening the second telescopic frame connected to the second fixed plate. The movement of the second slider causes the second electric push rod to push the first slider on the second locking block to slide on the first square rod, thus opening the first telescopic frame connected to the first fixed plate, achieving a linkage door opening. However, the following shortcomings still exist:

[0003] The aforementioned equipment has several drawbacks during use. The telescopic frame is generally directly exposed to the outside world. In actual use, the telescopic frame may be damaged due to collisions with objects or people, or even become unable to extend or retract normally due to excessive damage. Without proper protection for the telescopic frame, the equipment's reliability is poor. Therefore, we propose a construction hoist floor door linkage locking device. Utility Model Content

[0004] The purpose of this utility model is to provide a linkage locking device for the landing doors of a construction hoist. Through the protective mechanism and the opening and closing mechanism, it solves the problem that telescopic frames are generally directly exposed to the outside world. In actual use, the telescopic frames may be damaged due to collisions with objects or people, or even unable to extend or retract normally due to excessive damage. It is not good to provide appropriate protective measures for the telescopic frames, and the equipment has poor reliability.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a linkage locking device for the landing door of a construction hoist, including a door frame, the inner wall of which is provided with a sliding groove, and the inner wall of the sliding groove is provided with a protective mechanism.

[0007] The protective mechanism includes a displacement plate, the outer wall of which is slidably connected to the inner wall of a slide groove. A telescopic frame is fixedly connected to the outer wall of the displacement plate. A rack is fixedly connected to the top outer wall of the displacement plate. A limit block is fixedly connected to the top outer wall of the door frame. A gear is rotatably connected to the inner wall of the limit block. The outer wall of the gear meshes with the outer wall of the rack. The outer wall of the gear passes through the limit block to the outer wall. A winding wheel is fixedly connected to the outer wall of the gear. A connecting rope is fixedly connected to the outer wall of the winding wheel. A protective plate is fixedly connected to the outer wall of the connecting rope. Several sliding rods are slidably connected to the inner wall of the protective plate. Several fixing blocks are fixedly connected to the outer walls of the sliding rods. The outer walls of the fixing blocks are fixedly connected to the outer wall of the door frame. A pin groove is formed on the inner wall of the displacement plate.

[0008] Furthermore, the inner wall of the pin groove is provided with an opening and closing mechanism, the opening and closing mechanism includes a sliding pin, an electric telescopic rod is slidably connected to the inner wall of the sliding pin, a spring is fixedly connected to the outer wall of the electric telescopic rod, the outer wall of the spring is fixedly connected to the outer wall of the sliding pin, and a telescopic rod limiting block is fixedly connected to the outer wall of the electric telescopic rod.

[0009] Furthermore, a slide rail is fixedly connected to the top outer wall of the telescopic rod limiting block, and a plurality of sliding rods are slidably connected to the inner wall of the slide rail.

[0010] Furthermore, several of the sliding rods extend through the slide rail to the outer wall, and a lifting box is fixedly connected to the outer wall of the several sliding rods.

[0011] Furthermore, a motor frame is fixedly connected to the top outer wall of the lifting box, and a motor is fixedly connected to the inner wall of the motor frame.

[0012] Furthermore, the bottom output shaft of the motor is fixedly connected to a transmission rod via a coupling, and a convex shaft disc is fixedly connected to the bottom outer wall of the transmission rod.

[0013] Furthermore, the outer wall of the convex shaft disk is rotatably connected to the inner wall of the lifting box, and the outer wall of the convex shaft disk is slidably connected to the inner wall of the slide rail.

[0014] Furthermore, a displacement plate two is slidably connected to the outer wall of the electric telescopic rod, and a telescopic frame two is fixedly connected to the outer wall of the displacement plate two. The outer wall of the telescopic frame two is fixedly connected to the inner wall of the lifting box.

[0015] This utility model has the following beneficial effects:

[0016] 1. This utility model incorporates a protective plate. During the displacement of the plate, the rack moves, which in turn drives the gear to rotate. The gear then drives the winding wheel to rotate, and the winding wheel simultaneously winds up the connecting rope. The connecting rope causes the protective plate to move upwards along several sliding rods until it reaches a certain height, at which point the protective state is released, allowing personnel to pass through without restriction. This provides appropriate protection for the telescopic frame, preventing damage from collisions with objects or people, and even preventing it from becoming unable to extend or retract normally due to excessive damage. This significantly improves the reliability of the equipment.

[0017] 2. This utility model incorporates a sliding rail. When the lifting box is parallel to the door frame, the electric telescopic rod extends, causing the spring to displace. The spring then drives the sliding pin through the pin groove. When a user needs to enter the lifting box, they simply need to start the motor. The motor drives the transmission rod to rotate, which in turn drives the cam disc to rotate. The cam disc then drives the sliding rail to displace, allowing the telescopic frame and the sliding frame to retract together once the lifting box is aligned with the door frame. When the lifting box is not aligned with the door frame, the telescopic frame cannot open normally, restricting personnel passage and avoiding potential safety hazards.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the protective mechanism of this utility model;

[0022] Figure 3 This is a cross-sectional view of the protective mechanism of this utility model;

[0023] Figure 4 This is a schematic diagram of the opening and closing mechanism of this utility model;

[0024] Figure 5 This is a cross-sectional view of the opening and closing mechanism of this utility model.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Door frame; 101. Slide track; 2. Protective mechanism; 201. Displacement plate; 202. Telescopic frame; 203. Rack; 204. Limiting block; 205. Gear; 206. Rewinding wheel; 207. Connecting rope; 208. Protective plate; 209. Sliding rod; 210. Fixing block; 211. Pin groove; 3. Opening and closing mechanism; 301. Sliding pin; 302. Electric telescopic rod; 303. Spring; 304. Telescopic rod limiting block; 305. Slide rail; 306. Sliding rod II; 307. Lifting box; 308. Motor frame; 309. Motor; 310. Transmission rod; 311. Convex shaft plate; 312. Displacement plate II; 313. Telescopic frame II. Detailed Implementation

[0027] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-5 As shown, this utility model is a construction hoist landing door linkage locking device, including a door frame 1, a sliding groove 101 is provided on the inner wall of the door frame 1, and a protective mechanism 2 is provided on the inner wall of the sliding groove 101.

[0029] The protective mechanism 2 includes a displacement plate 201. The outer wall of the displacement plate 201 is slidably connected to the inner wall of the slide groove 101. A telescopic frame 202 is fixedly connected to the outer wall of the displacement plate 201. The slide groove 101 mainly serves to limit the sliding of the displacement plate 201, allowing the displacement plate 201 to slide at a fixed angle within the slide groove 101. A rack 203 is fixedly connected to the top outer wall of the displacement plate 201. A limit block 204 is fixedly connected to the top outer wall of the door frame 1. A gear 205 is rotatably connected to the inner wall of the limit block 204. The outer wall of the gear 205 meshes with the outer wall of the rack 203. The displacement plate 201 mainly serves to limit the rack 203. When the displacement plate 201 moves, it will drive the rack 203 to move as well. The outer wall of the gear 205 penetrates the limit block 204 to the outer wall. A winding wheel 206 is fixedly connected to the outer wall of 205. A connecting rope 207 is fixedly connected to the outer wall of the winding wheel 206. The gear 205 mainly serves to fix and limit the winding wheel 206. When the gear 205 rotates, it will drive the winding wheel 206 to rotate together. A protective plate 208 is fixedly connected to the outer wall of the connecting rope 207. Several sliding rods 209 are slidably connected to the inner wall of the protective plate 208. Several fixing blocks 210 are fixedly connected to the outer walls of the sliding rods 209. The sliding rods 209 mainly serve to slide and limit the protective plate 208. The protective plate 208 can slide at a fixed angle on the sliding rods 209. The outer walls of the fixing blocks 210 are fixedly connected to the outer wall of the door frame 1. A pin groove 211 is opened on the inner wall of the displacement plate 201.

[0030] The inner wall of the pin groove 211 is provided with an opening and closing mechanism 3, which includes a sliding pin 301. An electric telescopic rod 302 is slidably connected to the inner wall of the sliding pin 301. A spring 303 is fixedly connected to the outer wall of the electric telescopic rod 302. The electric telescopic rod 302 mainly serves to fix and limit the spring 303. The spring 303 can only be fixed in the position on the electric telescopic rod 302. The outer wall of the spring 303 is fixedly connected to the outer wall of the sliding pin 301. A telescopic rod limiting block 304 is fixedly connected to the outer wall of the electric telescopic rod 302. The top outer wall of the telescopic rod limiting block 304 is fixed. A slide rail 305 is connected to the telescopic rod limiting block 304. The slide rail 305 mainly serves to fix and limit the telescopic rod limiting block 304. When the slide rail 305 moves, it will drive the telescopic rod limiting block 304 to move together. Several sliding rods 306 are slidably connected to the inner wall of the slide rail 305. Several sliding rods 306 pass through the slide rail 305 to the outer wall. A lifting box 307 is fixedly connected to the outer wall of several sliding rods 306. The lifting box 307 mainly serves to fix and limit the several sliding rods 306. Several sliding rods 306 can only be fixed in the position inside the lifting box 307.

[0031] A motor frame 308 is fixedly connected to the top outer wall of the lifting box 307, and a motor 309 is fixedly connected to the inner wall of the motor frame 308. A transmission rod 310 is fixedly connected to the bottom output shaft of the motor 309 via a coupling. The motor 309 primarily provides kinetic energy to the transmission rod 310. When the motor 309 starts, it drives the transmission rod 310 to rotate simultaneously. A convex shaft disc 311 is fixedly connected to the bottom outer wall of the transmission rod 310. The outer wall of the convex shaft disc 311 is rotatably connected to the inner wall of the lifting box 307, and the outer wall of the convex shaft disc 311 is also rotatably connected to the inner wall of the slide rail 305. The wall is slidably connected, and the lifting box 307 mainly serves to limit the rotation of the convex shaft disk 311. The convex shaft disk 311 can rotate in a fixed position inside the lifting box 307. The outer wall of the electric telescopic rod 302 is slidably connected to the displacement plate 312, and the outer wall of the displacement plate 312 is fixedly connected to the telescopic frame 313. The outer wall of the telescopic frame 313 is fixedly connected to the inner wall of the lifting box 307. The lifting box 307 mainly serves to limit the telescopic frame 313. The telescopic frame 313 can only be in a fixed position inside the lifting box 307.

[0032] One specific application of this embodiment is:

[0033] When staff need to use the equipment, the protective plate 208 will protect the telescopic frame 202 from large objects or personnel directly impacting it. When the lifting box 307 is parallel to the door frame 1, the electric telescopic rod 302 will extend, causing the spring 303 to move. The spring 303 will then cause the sliding pin 301 to pass through the pin groove 211. When the user needs to enter the lifting box 307, they only need to start the motor 309. The motor 309 will drive the transmission rod 310 to rotate, which in turn will drive the cam disc 311 to rotate. The cam disc 311 will then drive the slide rail 305 to move, which will in turn drive the telescopic rod limiting block 304 to move. The telescopic rod limiting block 304 will then drive the electric telescopic rod 302 to move, which will in turn drive the displacement plate 312 to move. During this process, the electric telescopic rod 302 will also drive the sliding pin 301 to move. The displacement plate 201 will move, which will cause the telescopic frame 202 to retract. The second displacement plate 312 will cause the second telescopic frame 313 to retract. The telescopic frames 202 and 313 retract simultaneously to create space for workers to pass through. During this process, if the lifting box 307 and the door frame 1 do not fit together, the sliding pin 301 will not be able to pass through the pin groove 211. This will indirectly cause the telescopic frame 202 to be unable to retract together with the second telescopic frame 313. During the displacement of the displacement plate 201, the rack 203 will move, which will drive the gear 205 to rotate. The gear 205 will drive the winding wheel 206 to rotate. The winding wheel 206 will wind up the connecting rope 207 while rotating. The connecting rope 207 will cause the protective plate 208 to move upward on several sliding rods 209 until the protective plate 208 reaches a certain height, at which point the protective state will be released and personnel will no longer be restricted from passing through.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A construction hoist landing door linkage locking device, comprising a door frame (1), characterized in that: The inner wall of the door frame (1) is provided with a sliding groove (101), and the inner wall of the sliding groove (101) is provided with a protective mechanism (2). The protective mechanism (2) includes a displacement plate (201), the outer wall of which is slidably connected to the inner wall of the slide groove (101), a telescopic frame (202) is fixedly connected to the outer wall of the displacement plate (201), a rack (203) is fixedly connected to the top outer wall of the displacement plate (201), a limit block (204) is fixedly connected to the top outer wall of the door frame (1), a gear (205) is rotatably connected to the inner wall of the limit block (204), the outer wall of the gear (205) meshes with the outer wall of the rack (203), and the outer wall of the gear (205) penetrates the limit block (204). The gear (205) is fixedly connected to the outer wall of the gear (205), and a winding wheel (206) is fixedly connected to the outer wall of the winding wheel (206). A connecting rope (207) is fixedly connected to the outer wall of the connecting rope (207). A protective plate (208) is fixedly connected to the outer wall of the protective plate (208). Several sliding rods (209) are slidably connected to the inner wall of the protective plate (208). Several fixing blocks (210) are fixedly connected to the outer walls of the sliding rods (209). The outer walls of the fixing blocks (210) are fixedly connected to the outer wall of the door frame (1). A pin groove (211) is provided on the inner wall of the displacement plate (201).

2. The construction hoist landing door linkage locking device according to claim 1, characterized in that, The inner wall of the pin groove (211) is provided with an opening and closing mechanism (3). The opening and closing mechanism (3) includes a sliding pin (301). An electric telescopic rod (302) is slidably connected to the inner wall of the sliding pin (301). A spring (303) is fixedly connected to the outer wall of the electric telescopic rod (302). The outer wall of the spring (303) is fixedly connected to the outer wall of the sliding pin (301). A telescopic rod limiting block (304) is fixedly connected to the outer wall of the electric telescopic rod (302).

3. The construction hoist landing door linkage locking device according to claim 2, characterized in that, The top outer wall of the telescopic rod limiting block (304) is fixedly connected to a slide rail (305), and the inner wall of the slide rail (305) is slidably connected to several sliding rods (306).

4. The construction hoist landing door linkage locking device according to claim 3, characterized in that, Several sliding rods (306) extend through the slide rail (305) to the outer wall, and a lifting box (307) is fixedly connected to the outer wall of the several sliding rods (306).

5. The construction hoist landing door linkage locking device according to claim 4, characterized in that, The top outer wall of the lifting box (307) is fixedly connected to a motor frame (308), and the inner wall of the motor frame (308) is fixedly connected to a motor (309).

6. The construction hoist landing door linkage locking device according to claim 5, characterized in that, The bottom output shaft of the motor (309) is fixedly connected to a transmission rod (310) via a coupling, and a cam disc (311) is fixedly connected to the bottom outer wall of the transmission rod (310).

7. A construction hoist landing door linkage locking device according to claim 6, characterized in that, The outer wall of the convex shaft disk (311) is rotatably connected to the inner wall of the lifting box (307), and the outer wall of the convex shaft disk (311) is slidably connected to the inner wall of the slide rail (305).

8. The construction hoist landing door linkage locking device according to claim 7, characterized in that, The outer wall of the electric telescopic rod (302) is slidably connected to a displacement plate two (312), the outer wall of the displacement plate two (312) is fixedly connected to a telescopic frame two (313), and the outer wall of the telescopic frame two (313) is fixedly connected to the inner wall of the lifting box (307).

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