Step chain mechanism with stop plate and escalator protection device thereof

Abstract

The utility model belongs to the field of escalators, and discloses a step chain mechanism with a stopping plate and an escalator protection device of the step chain mechanism, the step chain mechanism comprises a chain plate assembly and a roller arranged on the chain plate assembly, the chain plate assembly is further provided with a connecting shaft, one end of the connecting shaft extends out of the chain plate assembly, and the other end of the connecting shaft is connected with the stopping plate. A stopping plate is arranged on the portion, extending out of the chain plate assembly, of the connecting shaft, and a groove is formed in at least one end of the periphery of the stopping plate. 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] The utility model relates to the field of escalator, concretely is a step chain mechanism with stop board and its escalator protection device. BACKGROUND

[0002] The step chain is installed on the guide rail of the ladder path, and the step is installed on the step chain. The driving host drives the step chain to run through the driving main shaft, and the step chain drives the step to run on the guide rail at the rated speed. The step chain is inevitably worn and elongated after a long time of running under the influence of passenger load or environmental factors. If the chain is excessively elongated, it may even break, which may cause serious safety accidents. SUMMARY

[0003] The utility model discloses a step chain mechanism with stop board and its escalator protection device, which solves the problems in the background art.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0005] A step chain mechanism with a stop board, comprising a chain plate assembly and a roller arranged on the chain plate assembly, a connecting shaft is further arranged on the chain plate assembly, one end of the connecting shaft extends out of the chain plate assembly, a stop board is arranged on the part of the connecting shaft extending out of the chain plate assembly, and a groove is arranged at least at one end of the stop board.

[0006] Further, the stop board is provided with grooves facing in opposite directions at the upper and lower ends thereof.

[0007] Further, the connecting shaft is inserted into the chain plate assembly and cannot rotate relative to the chain plate assembly.

[0008] Further, the longitudinal section of the connecting shaft is a polygonal structure, and the shape and size of the mounting hole on the chain plate assembly for mounting the connecting shaft are consistent with those of the connecting shaft.

[0009] Further, the longitudinal section of the connecting shaft is a rectangular structure.

[0010] Further, a stop block is arranged on the chain plate assembly, the stop block is located beside the connecting shaft, and is used for limiting the rotation of the connecting shaft.

[0011] Further, the stop board is a 180-degree central symmetric structure.

[0012] The utility model also provides an escalator protection device, which comprises a telescopic blocking mechanism and the step chain mechanism as described above, the telescopic blocking mechanism and the step chain mechanism are arranged on the truss of the escalator, the telescopic blocking mechanism has a telescopic rod, the telescopic rod is used for cooperating with the groove on the step chain mechanism to realize the stopping of the escalator.

[0013] Further, the telescopic blocking mechanism is an electric cylinder.

[0014] Compared with the prior art, the escalator protection device has the advantages that:

[0015] 1) In the event of an accident, the escalator can be automatically stopped by the cooperation of the blocking plate and the telescopic blocking mechanism, and the installation is reliable;

[0016] 2) The blocking plate is located outside the chain, and the telescopic blocking mechanism cannot be inserted into the chain, so that the chain can be prevented from being damaged;

[0017] 3) The blocking plate has a simple structure and is easy to produce and manufacture. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a partial structure diagram of the escalator protection device of the utility model.

[0019] Figure 2 is a connection structure diagram of the step chain mechanism and the telescopic blocking mechanism in the escalator protection device of the utility model.

[0020] In the drawing: step chain mechanism 1, chain plate assembly 100, roller 101, connecting shaft 102, blocking plate 103, groove 1030, stop block 104, telescopic blocking mechanism 2, telescopic rod 200. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] Please refer to Figure 1 and Figure 2 , a step chain mechanism with a blocking plate, comprising a chain plate assembly 100, the chain plate assembly 100 comprising two oppositely arranged and connected chains, a plurality of rollers 101 and connecting shafts 102 are arranged on each chain along the annular structure, one end of the connecting shaft 102 extends from the chain plate assembly 100, the blocking plate 103 is arranged on the part of the connecting shaft 102 extending from the chain plate assembly 100, and the upper and lower ends of the blocking plate 103 respectively extend from the upper and lower sides of the chain plate assembly 100 and are provided with grooves 1030 facing in opposite directions.

[0023] Please refer to Figure 2In an embodiment of the utility model, the connecting shaft 102 is inserted in the chain, and the connecting shaft 102 cannot rotate relative to the chain. Specifically, the longitudinal section of the connecting shaft 102 is a rectangular structure, and the through hole on the chain for inserting the connecting shaft 102 is a rectangular hole with a corresponding shape and size, so that the rotation of the connecting shaft 102 can be prevented. In addition, the connecting shaft 102 can also adopt a special-shaped structure such as a hexagonal shaft, an octagonal shaft, etc.

[0024] Referring to Figure 2 In an embodiment of the utility model, the stop block 104 is arranged on the chain 100 and located beside the connecting shaft 102, and preferably directly attached to the side surface of the connecting shaft 102, so that the rotation of the connecting shaft 102 can be further limited.

[0025] Referring to Figure 2 In an embodiment of the utility model, the stop plate 103 is preferably a 180-degree central symmetric structure, so that the design can facilitate processing.

[0026] Referring to Figures 1-2 A staircase protection device comprises a telescopic blocking mechanism 2 arranged on a staircase truss and a step chain mechanism 1 as described above, and the telescopic blocking mechanism 2 is arranged in pairs, and the two telescopic blocking mechanisms 2 of each pair are located at corresponding positions on the two sides of the step chain mechanism 1. The telescopic blocking mechanism 2 has a telescopic rod 200, which is used to cooperate with the groove 1030 on the step chain mechanism 1 to realize the stopping of the staircase. The telescopic blocking mechanism 2 is preferably an electric cylinder, and in addition, an electromagnetic push rod or the like can also be used.

[0027] The number of telescopic blocking mechanisms 2 and the mounting positions of the telescopic blocking mechanisms 2 on the truss can be adjusted as required.

[0028] The chain of the utility model has a stop plate, and a rectangular connecting shaft is connected in the chain. When an unexpected situation occurs, such as abnormal speed of the step chain, breakage of the main drive chain or breakage of the step chain (monitored by a conventional monitoring mechanism), the telescopic rod of the telescopic blocking mechanism installed at a fixed position is clamped into the stop plate of the chain to stop the escalator and prevent accidents.

[0029] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A step chain mechanism with a stop plate, comprising a chain link assembly (100) and a roller (101) provided on the chain link assembly (100), characterized in that, The chain plate assembly (100) is provided with a plurality of connecting shafts (102) at intervals along the annular structure, one end of the connecting shaft (102) extends from the chain plate assembly (100), the part of the connecting shaft (102) extending from the chain plate assembly (100) is provided with a stop plate (103), and at least one end of the stop plate (103) is provided with a groove (1030).

2. A step chain mechanism with a stop plate according to claim 1, characterized in that, The stop plate (103) is provided with grooves (1030) at the upper and lower ends respectively, and the grooves (1030) are oppositely directed.

3. A step chain mechanism with a stop plate according to claim 1, characterized in that, The connecting shaft (102) is inserted into the chain plate assembly (100) and cannot rotate relative to the chain plate assembly (100).

4. A step chain mechanism with a stop plate according to claim 3, 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 plate assembly (100) for mounting the connecting shaft (102) are consistent with the connecting shaft (102).

5. A step chain mechanism with a stop plate according to claim 4, characterized in that The longitudinal section of the connecting shaft (102) is a rectangular structure.

6. A step chain mechanism with a stop plate according to claim 4, characterized in that, The chain plate assembly (100) is provided with a stop block (104) beside the connecting shaft (102) for limiting the rotation of the connecting shaft (102).

7. A step chain mechanism with a stop plate according to claim 1, wherein The stop plate (103) is a 180-degree center-symmetric structure.

8. An escalator protection device, characterized in that The escalator chain mechanism (1) as claimed in any one of claims 1-7, and a telescopic stop mechanism (2) are arranged on the truss of the escalator, the telescopic stop mechanism (2) has a telescopic rod (200) which is used to cooperate with the groove (1030) on the escalator chain mechanism (1) to realize the stopping of the escalator.

9. A stairway protection device according to claim 8, characterised in that The telescopic stop mechanism (2) is an electric cylinder.

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