Automatic braking escalator

Abstract

The utility model belongs to the field of escalators, and discloses an automatic stopping escalator which comprises a truss, a driving device and a stair device are arranged on the truss, the stair device comprises a stair chain mechanism and a stair plate mechanism, the stair chain mechanism comprises a chain plate assembly, and the chain plate assembly comprises two chains which are oppositely arranged and connected. A plurality of rollers and connecting shafts are arranged on each chain at intervals along the annular structure of the chain, one end of each connecting shaft extends out of the outer side of the chain, a stopping plate is arranged on the portion, extending out of the chain, of each connecting shaft, and at least one end of each stopping plate is provided with a groove. The two telescopic blocking mechanisms in each pair are located at the corresponding positions of the two sides of the step chain mechanism, the telescopic blocking mechanisms are provided with telescopic rods, and the telescopic rods are used for being matched with grooves in the step chain mechanism so as to achieve stopping of the escalator. When an accident occurs, the stopping plate is matched with the telescopic stopping mechanism, so that the escalator can be automatically stopped, and the installation is reliable.

Description

Technical Field

[0001] This utility model relates to the field of escalators, specifically an escalator with automatic stopping. Background Technology

[0002] The ladder chain is mounted on the ladder guide rail, and the steps are mounted on the ladder chain. The drive unit drives the ladder chain through the drive spindle, and the ladder chain drives the steps to run on the guide rail at a rated speed. During operation, the ladder chain is affected by passenger loads or environmental factors, and over time, it will inevitably experience wear and elongation. Excessive elongation, or even chain breakage, can lead to serious safety accidents. Utility Model Content

[0003] The purpose of this invention is to provide an escalator with automatic stopping capability to solve the problems mentioned in the background art.

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

[0005] An escalator with automatic stopping includes a truss, on which a drive device and a step device are mounted. The drive device drives the step device to move. The step device includes a step chain mechanism and a step plate mechanism mounted on the step chain mechanism. The step chain mechanism includes a chain plate assembly, which includes two opposing and connected chains. Each chain has a plurality of rollers and a plurality of connecting shafts spaced apart along its annular structure. One end of each connecting shaft extends from the outside of the chain, and a stop plate is provided on the portion of the connecting shaft extending from the chain. At least one end of the stop plate has a groove. At least one pair of telescopic blocking mechanisms are mounted on the truss, with the two telescopic blocking mechanisms in each pair located at corresponding positions on both sides of the step chain mechanism. Each telescopic blocking mechanism has a telescopic rod that engages with the groove on the step chain mechanism to stop the escalator.

[0006] Furthermore, the truss includes an inclined section, a lower platform section connected to the lower end of the inclined section, and an upper platform section connected to the upper end of the inclined section.

[0007] Furthermore, the drive device is disposed in the upper platform section or the lower platform section.

[0008] Furthermore, handrails are also provided on the truss.

[0009] Furthermore, the upper and lower ends of the blocking plate are respectively provided with grooves facing opposite directions.

[0010] Furthermore, the connecting shaft is inserted into the chain and cannot rotate relative to the chain.

[0011] Furthermore, the longitudinal section of the connecting shaft is a polygonal structure, and the shape and size of the mounting holes on the chain for mounting the connecting shaft match the shape of the connecting shaft.

[0012] Furthermore, the longitudinal section of the connecting shaft is a rectangular structure.

[0013] Furthermore, a stop is provided on the chain, the stop being located next to the connecting shaft to restrict the rotation of the connecting shaft.

[0014] Furthermore, the blocking plate has a 180-degree centrally symmetrical structure.

[0015] Furthermore, the telescopic blocking mechanism is an electric cylinder.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1) In case of an accident, this utility model can automatically stop the escalator by cooperating with the blocking plate and the telescopic blocking mechanism, and the installation is reliable;

[0018] 2) The stop plate is located outside the chain, and the telescopic blocking mechanism cannot be inserted into the chain, thus ensuring that the chain will not be damaged;

[0019] 3) The barrier plate has a simple structure, ingenious design, and is easy to manufacture. Attached Figure Description

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

[0021] Figure 2 This is a schematic diagram of the ladder chain mechanism in this utility model.

[0022] Figure 3 This is a schematic diagram of the structure of the ladder chain mechanism and the telescopic blocking mechanism in this utility model.

[0023] In the figure: ladder chain mechanism 1, chain plate assembly 100, roller 101, connecting shaft 102, stop plate 103, groove 1030, stop block 104, telescopic blocking mechanism 2, telescopic rod 200, truss 3, lower platform section 300, inclined section 301, upper platform section 302, drive device 4. 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] Please see Figures 1-3 An escalator with automatic stopping includes a truss 3. A drive device 4, a step device, and a handrail device are mounted on the truss 3. The drive device 4 drives the step device to move. The step device includes a step chain mechanism 1 and a step plate mechanism mounted on the step chain mechanism 1. The step plate mechanism is known technology and will not be described in detail. The step chain mechanism 1 includes a chain plate assembly 100. The chain plate assembly 100 includes two opposing and connected chains. Each chain has several rollers 101 and several connecting shafts 102 spaced along its annular structure. One end of each connecting shaft 102 extends from the chain... A stop plate 103 extends from the plate assembly 100, and a connecting shaft 102 is provided on the portion extending from the plate assembly 100. The upper and lower ends of the stop plate 103 extend beyond the upper and lower edges of the plate assembly 100 and are provided with grooves 1030 facing opposite directions. At least one pair of telescopic blocking mechanisms 2 are provided on the truss 3. The two telescopic blocking mechanisms 2 in each pair are located at corresponding positions on both sides of the step chain mechanism 1. The telescopic blocking mechanism 2 has a telescopic rod 200, which is used to cooperate with the grooves 1030 on the step chain mechanism 1 to stop the escalator. The telescopic blocking mechanism 2 is preferably an electric cylinder, but electromagnetic push rods or the like can also be used.

[0026] The number of telescopic blocking mechanisms 2 and their installation position on the truss can be adjusted as needed.

[0027] Continue reading Figure 1 In one embodiment of this utility model, the truss 3 includes an inclined section 301, a lower platform section 300 connected to the lower end of the inclined section 301, and an upper platform section 302 connected to the upper end of the inclined section 301. The driving device 4 is disposed in the upper platform section 302, and the driving device 4 may also be disposed in the lower platform section 300.

[0028] Continue reading Figure 2 and Figure 3 In one embodiment of this utility model, the connecting shaft 102 is inserted into the chain and cannot rotate relative to the chain. Specifically, the longitudinal section of the connecting shaft 102 is rectangular, and the through holes on the chain for inserting the connecting shaft 102 are rectangular holes of corresponding shape and size, thus preventing the connecting shaft 102 from rotating. In addition, the connecting shaft 102 can also adopt irregular shapes such as hexagonal shafts and octagonal shafts.

[0029] Continue reading Figure 3 In one embodiment of the present invention, a stop 104 is provided on the chain 100. The stop 104 is located next to the connecting shaft 102 and preferably directly fits against the side of the connecting shaft 102, so as to further restrict the rotation of the connecting shaft 102.

[0030] Continue reading Figure 3In one embodiment of this utility model, the blocking plate 103 is preferably a 180-degree centrally symmetrical structure, which facilitates processing.

[0031] The chain of this utility model has a stop plate, and a rectangular connecting shaft is connected in the middle of the chain. In case of an accident, such as abnormal speed of the step chain, breakage of the main drive chain or the step chain (monitored by a conventional monitoring mechanism), the telescopic rod of the telescopic blocking mechanism installed in a fixed position will engage with the stop plate of the chain to stop the escalator and prevent the accident from happening.

[0032] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatically stopped escalator, comprising a truss (3) on which a drive device (4) and a step device are arranged, the drive device (4) driving the step device in motion, the step device comprising a step chain mechanism (1) and a step plate mechanism arranged on the step chain mechanism (1), characterized in that, The step chain mechanism (1) comprises a chain plate assembly (100) comprising two oppositely arranged and connected chains, a plurality of rollers (101) and a plurality of connecting shafts (102) are arranged on each chain along the annular structure, one end of the connecting shaft (102) extends from the outer side of the corresponding chain, a stop plate (103) is arranged on the part of the connecting shaft (102) extending from the chain, at least one end of the stop plate (103) is provided with a groove (1030), at least one pair of telescopic blocking mechanisms (2) are arranged on the truss (3), two telescopic blocking mechanisms (2) of each pair are located at corresponding positions on both sides of the step chain mechanism (1), the telescopic blocking mechanism (2) has a telescopic rod (200) which is matched with the groove (1030) on the step chain mechanism (1) to realize the stopping of the escalator.

2. An escalator according to claim 1, c h a r a c t e r i z e d in that The truss (3) comprises an inclined section (301), a lower platform section (300) connected to the lower end of the inclined section (301), and an upper platform section (302) connected to the upper end of the inclined section (301).

3. An escalator according to claim 2, wherein, The driving device (4) is arranged in the upper platform section (302) or the lower platform section (300).

4. An automatically stopped escalator according to claim 1, characterized in that The truss (3) is further provided with a handrail device.

5. An automatically stopped escalator according to any one of claims 1 - 4, characterized in that The upper and lower ends of the stop plate (103) are respectively provided with grooves (1030) facing in opposite directions.

6. An automatically stopped escalator according to any one of claims 1-4, characterized in that The connecting shaft (102) is inserted into the chain and cannot rotate relative to the chain.

7. An automatically stopped escalator according to claim 6, characterized in that The longitudinal section of the connecting shaft (102) is a polygonal structure, and the shape and size of the mounting hole on the chain for mounting the connecting shaft (102) are consistent with the connecting shaft (102).

8. An automatically stopped escalator according to claim 7, characterized in that The chain is provided with a stop block (104) beside the connecting shaft (102) for limiting the rotation of the connecting shaft (102).

9. An automatically stopped escalator according to any one of claims 1-4, characterized in that The stop plate (103) is a 180-degree central symmetric structure.

10. An automatically stopped escalator according to any one of claims 1-4, characterized in that The telescopic blocking mechanism (2) is an electric cylinder.

Images