Construction hoist light curtain device and chain transmission hidden protection mounting structure

Abstract

The utility model relates to a light curtain device and chain transmission hidden type protection mounting structure of construction hoist, belong to building hoisting and conveying machinery technical field, the utility model discloses including bending plate one, bending plate two, bending plate three, counterweight, light curtain and light curtain frame, bending plate one is fixed on the cage frame, bending plate two and bending plate three are installed on bending plate one, form an orbit space, to place counterweight, counterweight vertical motion along the orbit space formed by bending plate one, bending plate two and bending plate three, light curtain is installed in light curtain frame, the utility model discloses reasonable structure design makes it not directly expose on the surface, reduces the uncertain influence that outside factor brings, satisfies the use demand.

Description

Technical Field

[0001] This utility model relates to a protective installation structure, and more particularly to a concealed protective installation structure for a light curtain device and chain drive of a construction hoist. It is applied to intelligent control construction hoists and belongs to the field of construction lifting and transportation machinery technology. Background Technology

[0002] Automatic cage doors are a crucial component of the intelligence level of smart construction hoists, requiring no manual intervention to open or close. Currently, the main transmission methods for automatic cage doors in smart construction hoists on the market are rack and pinion transmission and sprocket and chain transmission. (See [link to relevant documentation]). Figures 1-2 As shown, it mainly includes a drive sprocket 1, chain 2, counterweight 3, counterweight track frame 4, hanging chain plate 5 for the cage door, light curtain 6, cage door frame 7, and cage door 8; the sprocket and chain drive is mainly achieved by installing the drive sprocket 1 on the cage door frame 7, with the chain 2 hanging on the drive sprocket 1. One end of the chain 2 is connected to the counterweight 3, and the other end of the chain 2 is connected to the hanging chain plate 5 of the cage door. The installation position is mainly inside the cage (see...). Figure 3 ) and external installation (see) Figures 1-2 However, none of them have corresponding protective measures. The movement of the chain can be directly seen by the human eye. In complex construction environments, the falling of construction debris such as ash and dust, as well as the conscious or unconscious contact of personnel entering and exiting, will affect whether the automatic cage door can open and close smoothly.

[0003] Automatic hoist cage doors typically employ a two-tiered anti-pinch protection system consisting of a mechanical anti-pinch device and an infrared light curtain or laser detection device. The infrared light curtain device is directly installed on the side walls of the hoist cage (protruding from the wall surface, see...). Figures 1-3 Therefore, construction workers and other transport vehicles inevitably scrape or touch the infrared light curtain when entering and exiting, and in severe cases, may even damage the infrared light curtain device. Thus, without the supervision of a dedicated driver, both of these situations pose certain safety hazards.

[0004] Therefore, it is essential to provide a more secure and effective structural design that can conceal the infrared light curtain device and transmission chain, preventing them from being directly exposed on the surface and reducing the uncertainties caused by external factors. Utility Model Content

[0005] The purpose of this utility model is to overcome the above-mentioned deficiencies in the existing technology and to provide a concealed protective installation structure for the light curtain device and chain drive of a construction hoist, so that it is not directly exposed on the surface and reduces the uncertain influence of external factors.

[0006] The technical solution adopted by this utility model to solve the above problems is as follows: the light curtain device and the hidden protective installation structure of the chain drive of the construction hoist include a bending plate one, a bending plate two, and a bending plate three. The bending plate one is fixed on the cage frame. The feature is that it also includes a counterweight, a light curtain, and a light curtain frame. The bending plate two and the bending plate three are installed on the bending plate one to form a track space for placing the counterweight. The counterweight moves vertically along the track space formed by the bending plate one, the bending plate two, and the bending plate three. The light curtain is installed on the light curtain frame.

[0007] Preferably, this utility model also includes a counterweight track sealing plate, wherein the surfaces of the second and third bent plates are flush in the same direction and each has mounting holes, and is fixed by the counterweight track sealing plate; in order to cover the counterweight block and prevent personnel from touching the counterweight block and affecting its operation.

[0008] Preferably, the light curtain frame of this invention is provided with a U-shaped bent plate, which also serves as a shield for the chain.

[0009] Preferably, the U-shaped plate of this invention has a rivet nut on one side, which is bolted to the bending plate, and the gap between the other side and the bending plate is large enough to allow the chain plate to pass vertically, so as to cover the chain.

[0010] Preferably, the light curtain and the light curtain frame of this invention are connected by bolts.

[0011] Preferably, the bending plate of this utility model is formed by bending and is directly welded to the cage frame, which has a large internal space to accommodate the counterweight and chain movement.

[0012] Compared with the prior art, this utility model has the following advantages and effects: (1) The overall structure is reasonably designed, which solves the problem that when the infrared light curtain is installed on the inner wall of the cage, it is easily scratched and damaged by the goods being transported in and out, thus affecting the anti-pinch function of the cage door; (2) This utility model solves the problem of hidden protection of chain drive, preventing the automatic cage door from not being able to open and close properly due to the falling of construction ash and other debris and the conscious or unconscious contact of personnel entering and exiting when the chain is exposed on the surface. Attached Figure Description

[0013] Figure 1 This is a partial front view (outside the cage) showing the fit between the existing cage door and frame.

[0014] Figure 2 This is a partial top view (outside the cage) showing the fit between the existing cage door and frame.

[0015] Figure 3 This is a partial top view (inside the cage) showing the fit between the existing cage door and frame.

[0016] Figure 4 This is a partial top view (inside the cage) showing the cooperation between the cage door and the door frame in an embodiment of this utility model.

[0017] Figure 5 This is a structural diagram of the light curtain of this utility model installed on the bottom edge of the U-shaped bent plate on the light curtain frame as a component.

[0018] Figures 1-2 In the middle: 1. Transmission sprocket, 2. Chain, 3. Counterweight track frame, 4. Hanging chain plate of cage door, 5. Light curtain, 6. Cage door frame, 7. Cage door, 8.

[0019] Figures 3-4 In the middle: Bending plate 1-1, Bending plate 2-1, Bending plate 3-1, Counterweight block 4-1, Counterweight track sealing plate 5-1, Light curtain 6-1, Light curtain frame 7-1, Cage door 8-1, Hanging chain plate 9-1, Rivet nut 10-1. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0021] Example.

[0022] See Figures 4-5 In this embodiment, the concealed protective installation structure of the light curtain device and chain drive of the construction hoist includes a bending plate 1-1, a bending plate 2-1, a bending plate 3-1, a counterweight 4-1, a light curtain 6-1, and a light curtain frame 7-1. The bending plate 1-1 is fixed on the frame of the hoisting cage door 8-1. The bending plate 2-1 and the bending plate 3-1 are installed on the bending plate 1-1, forming a track space for placing the counterweight 4-1. The counterweight 4-1 moves vertically along the track space formed by the bending plate 1-1, the bending plate 2-1, and the bending plate 3-1. The light curtain 6-1 is installed on the light curtain frame 7-1.

[0023] The sprocket and chain drive is installed inside the cage. Bending plate 1-1 is an irregularly shaped bent plate, directly welded to the cage door 8-1 frame, providing ample internal space to accommodate the counterweight and chain movement. Bending plates 2-1 and 3-1 are welded onto bending plate 1-1, forming a track space for the counterweight 4-1, which moves vertically along this track space. The surfaces of bending plates 2-1 and 3-1 are flush in the same direction and have mounting holes for installing track sealing plates 5-1 to conceal the counterweight and prevent personnel from touching it and affecting its operation. Figure 4 As shown.

[0024] The U-shaped bent plate is set as the light curtain frame 7-1, and also serves as a shield for the chain (hidden protective plate). In use, the light curtain 6-1 is directly bolted to the bottom edge of the U-shaped bent plate on the light curtain frame 7-1, as a component (see...). Figure 5 The installation requirements are as follows: the front of the light curtain must not protrude from the U-shaped long plate. One side of the U-shaped bending plate is equipped with a rivet nut 10-1, which is bolted to the bending plate 1-1. The other side is slightly longer, and the gap between it and the bending plate 1-1 is large enough to allow the chain plate 9-1 to pass vertically, so as to cover the chain. The entire light curtain 6-1 component is easy to install, disassemble, and maintain, and has good concealment performance.

[0025] Based on the above description, those skilled in the art are already able to implement it.

[0026] Furthermore, it should be noted that the specific embodiments described in this specification may differ in the shape and name of their components. The above description is merely illustrative of the structure of this utility model. All equivalent or simple variations made based on the structure, features, and principles described in this utility model patent concept are included within the protection scope of this utility model patent. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not deviate from the structure of this utility model or exceed the scope defined in these claims, all of which should fall within the protection scope of this utility model.

Claims

1. A concealed protective installation structure for the light curtain device and chain drive of a construction hoist, comprising a first bent plate (1-1), a second bent plate (2-1), and a third bent plate (3-1), wherein the first bent plate (1-1) is fixed to the cage frame, characterized in that: It also includes a counterweight (4-1), a light curtain (6-1), and a light curtain frame (7-1). A second bending plate (2-1) and a third bending plate (3-1) are installed on the first bending plate (1-1) to form a track space for placing the counterweight (4-1). The counterweight (4-1) moves vertically along the track space formed by the first bending plate (1-1), the second bending plate (2-1), and the third bending plate (3-1). The light curtain (6-1) is installed on the light curtain frame (7-1).

2. The concealed protective installation structure of the light curtain device and chain drive for the construction hoist according to claim 1, characterized in that: It also includes a counterweight rail sealing plate (5-1), wherein the two bent plates (2-1) and the three bent plates (3-1) are flush in the same direction and have mounting holes, and are fixed by the counterweight rail sealing plate (5-1).

3. The concealed protective installation structure for the light curtain device and chain drive of the construction hoist according to claim 1, characterized in that: The light curtain frame (7-1) is equipped with a U-shaped bent plate, which also serves as a shield for the chain.

4. The concealed protective installation structure of the light curtain device and chain drive for the construction hoist according to claim 3, characterized in that: The U-shaped bending plate is provided with a rivet nut on one side and is installed on the bending plate (1-1) by bolts. The gap between the other side and the bending plate (1-1) is large enough to allow the chain plate to pass vertically, so as to cover the chain.

5. The concealed protective installation structure for the light curtain device and chain drive of the construction hoist according to claim 1, characterized in that: The light curtain (6-1) and the light curtain frame (7-1) are connected by bolts.

6. The concealed protective installation structure of the light curtain device and chain drive for the construction hoist according to claim 1, characterized in that: The bending plate (1-1) is an irregularly shaped bending plate that is directly welded to the cage frame. It has a large internal space to accommodate the counterweight and chain movement.

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