Passenger conveyor system and anti-collision device for steps and comb plates

Abstract

The invention relates to a passenger conveyor system and an anti-collision device for steps and comb plates. The passenger conveyor system includes a step chain having a plurality of steps, a comb plate, and an anti-collision device, the anti-collision device including: an actuation mechanism coupled to the comb plate, when the moving distance of a step which is adjacent to comb teeth of the comb plate and is to be meshed in the vertical upward direction of the passenger conveyor system exceeds a preset value, the comb plate is lifted upwards from an initial first position to a second position so as to be prevented from colliding with the step; and the reset mechanism is arranged to enable the comb plate to return to the first position from the second position after the step travels through the comb plate. The anti-collision device is easy to manufacture, install and use, has remarkable practicability, and can effectively improve the system safety.

Description

Technical Field

[0001] The present invention relates to conveying systems, and in particular to passenger conveyor systems and anti-collision devices for steps and comb plates. Background Art

[0002] At present, various passenger conveyor systems such as escalators and moving walkways have been widely used in many places, and they can bring great convenience to people's work, production, travel, etc. However, the present application finds that there are still areas for improvement in existing passenger conveyor products in some aspects. For example, during the operation of the current passenger conveyor system, in some cases, it is possible that the steps collide with the comb teeth of the comb plate during the movement, such as some small objects (such as keys, small stones, cosmetic pencils, etc.) carried by passengers accidentally fall into the step running guide rail and are clamped, resulting in the steps being lifted and unable to move along the set normal trajectory and pass from the bottom of the comb plate after engaging with the comb teeth. When the steps collide with the comb plate, not only will the equipment be damaged, but also the normal operation of the passenger conveyor system will be affected, and in serious cases, it may even endanger the passengers and cause damage to the items they carry. Summary of the invention

[0003] In view of this, the present invention provides a passenger conveyor system and an anti-collision device for steps and comb plates, thereby solving or at least alleviating one or more of the above-mentioned problems and other problems existing in the prior art, or providing an alternative technical solution for the prior art.

[0004] First, according to one aspect of the present invention, a passenger conveyor system is provided, the passenger conveyor system comprising: a step chain having a plurality of steps, a comb plate and an anti-collision device, wherein the anti-collision device comprises: an actuating mechanism connected to the comb plate and configured to, when a step adjacent to the comb teeth of the comb plate to be engaged moves in a vertical upward direction of the passenger conveyor system by a distance exceeding a preset value, cause the comb plate to be lifted upward from an initial first position to a second position to avoid collision with the step; and

[0005] A reset mechanism is arranged to return the comb plate from the second position to the first position after the step travels through the comb plate.

[0006] In the passenger conveyor system according to the present invention, optionally, the actuating mechanism comprises:

[0007] One or more connecting members fixedly connected to the comb plate and a pressure rail arranged above the guide wheel of the step; and

[0008] One or more pivot members are connected to the comb plate so that the comb plate can be pivoted upward to lift the comb teeth of the comb plate by a distance in the vertical upward direction.

[0009] In the passenger conveyor system according to the present invention, optionally, both ends of the connecting member are respectively connected to the lower surface of the comb plate and the upper surface of the pressure rail, and at least one of the connecting members is arranged adjacent to the comb teeth.

[0010] In the passenger conveyor system according to the present invention, optionally, the comb teeth are arranged at a first end of the comb plate, the pivot member is arranged at a second end of the comb plate opposite to the first end, and the pivot member includes a hinge.

[0011] In the passenger conveyor system according to the present invention, optionally, the pressure rail is a first pressure rail and / or a second pressure rail, the first pressure rail is used for a leading wheel of the step, and the second pressure rail is used for a guiding wheel of the step.

[0012] In the passenger conveyor system according to the present invention, optionally, the reset mechanism comprises one or more reset assemblies, wherein each reset assembly comprises:

[0013] a bracket fixedly connected to a truss in the passenger conveyor system;

[0014] A rod, both ends of which are respectively connected to the bracket and a pressure rail arranged above the guide wheel of the step; and

[0015] A spring is sleeved on the rod, and two ends of the spring are respectively pressed against the bracket and the pressure rail, when the spring is in an initial state after installation, the comb plate is located at the first position, and the spring is in a compressed state when the comb plate is located at the second position.

[0016] In the passenger conveyor system according to the present invention, optionally, the reset mechanism includes two reset assemblies, which are arranged at intervals along the length direction of the pressure rail, and the respective rods in the two reset assemblies and the connecting members are arranged linearly in the length direction of the pressure rail.

[0017] In the passenger conveyor system according to the present invention, optionally, the bracket is constructed to have a first arm and a second arm, the first arm is connected to the truss, the second arm is connected to the first arm and is arranged above the pressure rail, the rod is connected to the second arm and one end of the spring is pressed against the second arm.

[0018] In the passenger conveyor system according to the present invention, optionally, the anti-collision device also includes a trigger member, which is configured to be triggered to generate a first working signal and send it to a controller in the passenger conveyor system when the comb plate is lifted from the first position to the second position, and the controller controls the passenger conveyor system according to the first working signal.

[0019] In the passenger conveyor system according to the present invention, optionally, the trigger member is also configured to be triggered to generate a second working signal and send it to the controller when the comb plate returns from the second position to the first position, and the controller controls the passenger conveyor system according to the second working signal.

[0020] In the passenger conveyor system according to the present invention, optionally, the trigger member comprises a switch component, and the controller controls the passenger conveyor system to stop operating according to the first working signal.

[0021] In the passenger conveyor system according to the present invention, optionally, the reset mechanism comprises one or more reset assemblies, wherein each reset assembly comprises:

[0022] a bracket fixedly connected to a truss in the passenger conveyor system;

[0023] A rod, both ends of which are respectively connected to the bracket and a pressure rail arranged above the guide wheel of the step; and

[0024] a spring, which is sleeved on the rod, and the two ends of the spring are pressed against the bracket and the pressure rail respectively, the comb plate is located at the first position when the spring is in an initial state after installation, and the spring is in a compressed state when the comb plate is located at the second position;

[0025] Wherein, the triggering member is connected to the bracket and arranged above the pressure rail.

[0026] In the passenger conveyor system according to the present invention, optionally, the anti-collision device is arranged on the left and right sides of the step.

[0027] In addition, according to another aspect of the present invention, there is also provided an anti-collision device for steps and comb plates, comprising:

[0028] an actuating mechanism connected to a comb plate in a passenger conveyor system and configured to lift the comb plate upward from an initial first position to a second position to avoid collision with the step adjacent to the comb teeth of the comb plate to be engaged when the moving distance in the vertical upward direction of the passenger conveyor system exceeds a preset value; and

[0029] A reset mechanism is arranged to return the comb plate from the second position to the first position after the step travels through the comb plate.

[0030] The anti-collision device in the passenger conveyor system can effectively prevent the steps from colliding and damaging the comb plate when traveling. When encountering abnormal situations, it can also ensure that the comb teeth of the steps and the comb plate are normally meshed and passed, and the comb plate can be restored to its original position after passing through the comb plate. In addition, the anti-collision device also provides further safety protection, and can quickly detect and notify the system in the event of abnormal step operation, so as to implement control operations such as stopping in time. The anti-collision device is easy to manufacture, install and use, and has significant practicality, which can effectively improve the safety of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. However, it should be noted that these drawings are designed for explanatory purposes only and are only intended to conceptually illustrate the structural configurations described herein, and are not necessarily drawn to scale.

[0032] Figure 1 It is a three-dimensional structural schematic diagram of an escalator example according to the present invention.

[0033] Figure 2 yes Figure 1 A schematic diagram of the partial side view of the structure of a step in the example when it is normally engaged with the comb teeth on the comb plate.

[0034] Figure 3 is with Figure 2 The normal meshing condition shown is a partial side view structural schematic diagram showing that a step cannot mesh normally with the comb teeth on the comb plate under abnormal circumstances when the anti-collision device of the present invention is not configured, in contrast.

[0035] Figure 4 2 shows a partial side view of the structure when a step can still normally mesh with the comb teeth on the comb plate under abnormal circumstances when the embodiment of the anti-collision device is configured.

[0036] Figure 5 An anti-collision device according to an embodiment of the present invention is arranged on Figure 1 Schematic diagram of the local three-dimensional structure during the example.

[0037] Figure 6 Another embodiment of the anti-collision device according to the present invention is arranged on Figure 1 Schematic diagram of the partial side view structure during the example. DETAILED DESCRIPTION

[0038] Figure 1An escalator 10 is illustrated. In the ensuing description, it should become apparent that the present invention is applicable to other passenger conveyor systems, such as moving walkways. The escalator 10 generally includes a truss 12 extending between a lower landing 14 and an upper landing 16, the truss 12 being fixedly mounted on site. A plurality of sequentially connected steps 18 are connected to a step chain 20 and travel through a closed loop path within the truss 12 along guide rails 23 and 23' that are fixed thereto, thereby forming a conveyor for carrying passengers. Pairs of handrails 22 include moving handrails 24. A drive machine 26 or drive system is typically positioned in a machine space 28 below the upper landing 16; however, an additional machine space 28' may be positioned below the lower landing 14. The drive machine 26 is configured to drive the steps 18 and / or handrails 24 through the step chain 20. The drive machine 26 operates to move the steps 18 in a selected direction at a desired speed under normal operating conditions.

[0039] The steps 18 make a 180 degree change of direction in a turning area 19 located below the lower landing 14 and the upper landing 16. The steps 18 are pivotally attached to a step chain 20 and follow the closed loop path of the step chain 20, running from one landing to another and back again.

[0040] The drive machine 26 includes a first drive component 32, such as a motor output sheave, connected to a drive motor 34 via a belt reduction assembly 36, which includes a second drive component 38, such as an output sheave, driven by a tensioning component 39, such as an output belt. In some embodiments, the first drive component 32 is a driving component and the second drive component 38 is a driven component.

[0041] As used herein, in various embodiments, the first drive member 32 and / or the second drive member 38 can be any type of rotating device, such as a rope, pulley, gear, wheel, sprocket, cog, pinion, etc. In various embodiments, the tension member 39 can be configured as a chain, belt, cable, belt, band, strip, or any other similar device that operatively connects two elements to provide a driving force from one element to another. For example, the tension member 39 can be any type of interconnecting member that extends between the first drive member 32 and the second drive member 38 and operatively connects the first drive member 32 and the second drive member 38. In some embodiments, as Figure 1As shown in FIG. 1 , the first drive member 32 and the second drive member 38 may provide belt reduction. For example, the diameter of the first drive member 32 may be approximately 75 mm (2.95 inches), while the diameter of the second drive member 38 may be approximately 750 mm (29.53 inches). For example, the belt reduction allows the sheaves to be replaced to change the speed for 50 or 60 Hz mains power applications or different step speeds. However, in other embodiments, the second drive member 38 may be substantially similar to the first drive member 32.

[0042] As noted, the first drive member 32 is driven by the drive motor 34 and is thus configured to drive the tensioning member 39 and the second drive member 38. In some embodiments, the second drive member 38 may be an idler gear or similar device that is driven by the tensioning member 39 through the operative connection between the first drive member 32 and the second drive member 38. The tensioning member 39 travels around a loop set by the first drive member 32 and the second drive member 38, which may be referred to as a small loop hereinafter. The small loop is provided for driving a larger loop, which is composed of the step chain 20 and is driven by, for example, the output sheave 40. Under normal operating conditions, based on the movement speed of the first drive member 32 as driven by the drive motor 34, the tensioning member 39 and the step chain 20 move in unison.

[0043] The escalator 10 also includes a controller 115 in electronic communication with the drive motor 34. As shown, the controller 115 can be positioned in the machine space 28 of the escalator 10 and is configured to control the operation of the escalator 10. For example, the controller 115 can provide a drive signal to the drive motor 34 to control the acceleration, deceleration, stop, etc. of the steps 18 through the step chain 20. The controller 115 can be an electronic controller including a processor and an associated memory, the memory including computer executable instructions, which, when executed by the processor, cause the processor to perform a variety of operations. The processor can be, but is not limited to, a single processor or multi-processor system of any architecture in a variety of possible architectures, including field programmable gate arrays (FPGAs), central processing units (CPUs), application specific integrated circuits (ASICs), digital signal processors (DSPs), or graphics processing units (GPUs) hardware arranged in a homogeneous or heterogeneous manner. The memory can be, but is not limited to, random access memory (RAM), read-only memory (ROM), or other electronic, optical, magnetic, or any other computer-readable medium.

[0044] Although described herein as a specific escalator drive system and specific components, this is merely exemplary, and those skilled in the art will recognize that other escalator system configurations may operate with the invention disclosed herein.

[0045] The escalator 10 may be provided with an anti-collision device, for example, it may be arranged at any suitable position in the system, such as on the left and right sides of the step 18, so as to prevent the escalator from being damaged. Figure 3 In the abnormal situation shown in the example, the anti-collision device can also be used to avoid collision accidents between the step 18 and the comb plate 17. It should be understood that for the purpose of description herein, the technical terms "upper", "lower", "right", "left", "front", "rear", "vertical" and their derivatives should be associated with such as Figure 1 The invention is oriented in the embodiment of the present invention, however, the invention may assume various alternative orientations, except where expressly specified to the contrary.

[0046] As used herein, in various embodiments, the anti-collision device may include an actuating mechanism 51 and a resetting mechanism 52. Figure 1 When the moving distance in the Z-axis direction (as shown in the figure) exceeds a preset value (that is, it exceeds the upper limit of the moving distance allowed by the design and causes the step to be unable to engage with the comb teeth normally, and the preset value may be different according to different application scenarios), the comb plate 17 can be lifted upward by the actuating mechanism 51 to change the current position of the comb plate 17, thereby avoiding collision between it and the step; then, when the step 18 successfully passes through the raised comb plate 17, the reset mechanism 52 can be used to return the comb plate 17 to its initial position, that is, the comb plate 17 returns to its original normal working state.

[0047] As an example, refer to Figures 4 to 6 The actuating mechanism 51 may include a connecting member 511 and a pivoting member 512. The connecting member 511 may be fixedly connected to the comb plate 17 and the pressure rail 21 of the guide wheel 181 (also commonly referred to as the main guide wheel) for the step 18, and the pivoting member 512 may be connected to the comb plate 17 so that the latter can pivot upward. In this way, when the guide wheel 181 of the step 18 is disturbed by a foreign object 60 and causes the step 18 to be abnormally lifted, the guide wheel 181 will touch the pressure rail 21 arranged above it and push it to move upward. At this time, the comb plate 17 rigidly connected to the pressure rail 21 via the connecting member 511 of the actuating mechanism 51 will be driven to be lifted synchronously. The pivot member 512 in the actuating mechanism 51 will allow the comb plate 17 and its comb teeth 170 to be lifted in the vertical upward direction, so that the step 18 can then smoothly move through the comb plate 17 and its comb teeth 170 that have been lifted, avoiding collision between them. It should be noted that the description of the guide wheel 181 and its pressure rail 21 of the step 18 in this article is also applicable to the other guide wheel 181' (also often called the guidance wheel) and its pressure rail 21' of the step 18, so it will not be repeated.

[0048] The connecting member 511 may be optionally configured into a rod shape or other suitable shape, and the two ends of the connecting member 511 may be connected to the lower surface of the comb plate 17 and the upper surface of the pressure rail 21 respectively by any feasible means such as welding connection, bolt connection, etc. In addition, one or more connecting members 511 may be configured in the actuating mechanism 51 according to application requirements. As used herein, in various embodiments, one or more connecting members 511 may be arranged adjacent to the comb teeth 170 of the comb plate 17 so as to better promote the upward lifting of the comb plate 17 after the force is applied by the connecting member 511.

[0049] The pivoting member 512 may be a hinge or other component. The comb teeth 170 and the pivoting member 512 may be arranged at opposite ends of the comb plate 17. Figure 4 The first end 171 and the second end 172 are indicated in the figure. According to the application requirements, one or more pivot members 512 can be configured in the actuating mechanism 51. The comb plate 17 can be directly or indirectly pivoted to the truss 12 through the pivot member 512, so that it can pivot around the pivot provided by the pivot member 512 after being subjected to external force, especially so that the first end 171 of the comb teeth 170 can be lifted upward from the initial position. In this way, even in the face of abnormal situations, the ladder 18 can be realized by means of the connecting member 511 and the pivot member 512. Figure 2 As shown, the comb teeth 170 of the comb plate 17 are normally meshed with each other, and the comb plate 17 is safely passed without any collision accident.

[0050] For a clearer understanding, Figure 3 1 and 1 are used to illustrate an abnormal situation by way of comparison. At this time, the anti-collision device according to the present invention is not configured in the system. Because an unexpected foreign object 60 (such as keys, cosmetic pens, electronic accessories, etc. accidentally left behind by passengers during the ride) falls and is clamped in the step guide rail, the normal operation of the steps is affected. That is, the guide wheel of the step 18' will be forced to rise and run after contacting the foreign object 60, resulting in the inability to move along the normal trajectory that was originally engaged with the comb teeth 170' on the comb plate 17', so the following will occur. Figure 3 The situation shown in which the step 18' and the comb teeth 170' collide with each other is not desirable, as it affects the safe operation of the equipment and endangers personal safety. The device of the present invention can successfully solve such problems.

[0051] refer to Figure 4 ,and Figure 3 In contrast to the situation shown, when the anti-collision device of the present invention is configured in the passenger conveyor system, even in the face of abnormal operation of the steps, the comb plate 17 will be synchronously lifted upward by the actuating mechanism in the anti-collision device, for example, Figure 4It is schematically shown that the comb plate 17 can be lifted from the initial position P1 to a new position P2, the latter being relatively higher than the former in the vertical upward direction, so that the step 18 can now smoothly pass through the comb plate 17 without colliding with it, thereby advantageously improving the safety performance of the system, and in particular reliably protecting the personal safety of passengers.

[0052] In the anti-collision device, the reset mechanism 52 is used to enable the comb plate 17 to return to its initial position after being lifted, so that the system can return to a normal state. As used herein, in various embodiments, the reset mechanism 52 can be configured with one or more reset components, for example, two, three or more reset components according to application requirements, and these reset components can be installed and arranged at any suitable position in the system as required.

[0053] As an example, each reset assembly may include a bracket 521, a rod 522 and a spring 523. Specifically, the bracket 521 may be directly or indirectly fixedly connected to the truss 12 (for example, the bracket 521 may be installed on a component such as the guide rail 23), and the two ends of the rod 522 may be fixedly connected to the bracket 521 and the pressure rail 21, respectively. The above connection method may use any feasible connection scheme such as welding and bolt connection. As an optional situation, the bracket 521 may be configured into an L shape, for example, it may have a first arm 5211 and a second arm 5212, and may be fixedly connected to the truss 12 through the first arm 5211, and the second arm 5212 may be connected to the rod 522 by, for example, a nut, and the second arm 5212 may be arranged above the pressure rail 21. The spring 523 may be sleeved on the rod 522, and the upper and lower ends of the spring 523 may be pressed against the bracket 521 and the pressure rail 21, respectively, for example, one end of the spring 523 may be pressed against the above-mentioned second arm of the bracket 521. It can be understood that when the spring 523 is in the initial state after installation, the comb plate 17 is in the position as shown in FIG. Figure 4 , and when the comb plate 17 is forced to be lifted to another relatively higher position P2, the spring 523 will be forced to be in a compressed state; then, when the step 18 successfully passes through the lifted comb plate 17 and its comb teeth 170 to avoid collision, the spring 523 in the compressed state will release the stored potential energy, thereby pushing the pressure rail 21, and then driving the comb plate 17 to move downward via the connecting member 511, so that the comb plate 17 returns to the initial position P1, that is, it returns to its conventional normal position.

[0054] As used herein, in various embodiments, Figure 5As shown, when two or more reset assemblies are configured, they are arranged at intervals along the length direction of the pressure rail 21 so that the force is more evenly distributed and can work reliably. As an optional situation, it can be seen that the respective rods 522 and connectors 511 in these reset assemblies are optimally arranged in a straight line along the length direction of the pressure rail 21 so that the pressure rail, comb plate, steps and other parts are more evenly stressed and more durable.

[0055] Continue to refer Figure 6 In the illustrated embodiment, the anti-collision device may be provided with a trigger 53 as an optional part. By providing the trigger 53, the current operating status of the escalator 10 may be better understood and controlled, which is beneficial to further improve the safety performance of the system.

[0056] Specifically, when an abnormal situation occurs during operation of the step 18, the actuating mechanism 51 in the anti-collision device will work and lift the current position of the comb plate 17, for example Figure 4 As shown, after being lifted from the initial position P1 to the new position P2, the trigger member 53 will be triggered to generate a working signal, and the working signal will be sent to, for example, the controller 115 mentioned above. The controller 115 can perform corresponding control operations on the escalator 10 according to the above working signal. For example, the escalator 10 can be controlled to stop running immediately to ensure the safety of equipment and personnel in time. Of course, it is also possible to only send a safety warning to the staff and / or passengers without an immediate stop operation. Because it is different from the prior art, the anti-collision device according to the present invention has been configured in the escalator 10, which can effectively prevent the steps from colliding with the comb plate.

[0057] Furthermore, the trigger member 53 can be optionally configured to be triggered to generate another working signal and send it to the controller 115 after the step 18 successfully passes through the comb plate 17 that has been raised, and the comb plate 17 subsequently returns from position P2 to the initial position P1. The controller 115 can obtain the current operating status of the escalator 10 based on the working signal, and then perform any possible control operations based on it, such as canceling the safety warning that has been sent previously, restoring the normal operation of the escalator, etc. Such operations can be flexibly set and adjusted according to specific application requirements.

[0058] As used herein, in various embodiments, the trigger 53 may be implemented using any suitable component such as a switch component, a sensor, etc. For example, Figure 6As shown, the trigger member 53 can be arranged in association with the bracket 521 in the reset mechanism 52, and the trigger member 53 can be installed and connected to the bracket 521 by, for example, a connecting bracket 70, and the trigger member 53 is supported by the bracket 521 so that it is above the pressure rail 21, so that when the pressure rail 21 and the comb plate 17 driven by it change position, the trigger member 53 will be triggered to work (for example, when a switch component is adopted, it will form contact with the pressure rail 21 after the position is raised and be triggered to generate a corresponding signal, and then be triggered again to generate a corresponding signal after losing contact with the pressure rail 21), and then the corresponding signal generated by the trigger is provided to the controller 115 of the escalator 10 for related control operations, thereby effectively improving the safety performance of the system.

[0059] The above is only an example to explain in detail the passenger conveyor system and the anti-collision device for steps and comb plates according to the present invention. These examples are only used to illustrate the principles and implementation methods of the present invention, but not to limit the present invention. Without departing from the scope of the present invention, those skilled in the art can also make various modifications and improvements. Therefore, all equivalent technical solutions should belong to the scope of the present invention and be defined by the claims of the present invention.

Claims

1. A passenger conveyor system, characterized in that: The passenger conveyor system comprises: a step chain having a plurality of steps, a comb plate and an anti-collision device, wherein the anti-collision device comprises: an actuating mechanism connected to the comb plate and configured to, when a step adjacent to the comb teeth of the comb plate to be engaged moves in a vertical upward direction of the passenger conveyor system by a distance exceeding a preset value, cause the comb plate to be lifted upward from an initial first position to a second position to avoid collision with the step; and A reset mechanism is arranged to return the comb plate from the second position to the first position after the step travels through the comb plate.

2. The passenger conveyor system according to claim 1, wherein: The actuating mechanism comprises: One or more connecting members fixedly connected to the comb plate and a pressure rail arranged above the guide wheel of the step; and One or more pivot members are connected to the comb plate so that the comb plate can be pivoted upward to lift the comb teeth of the comb plate by a distance in the vertical upward direction.

3. The passenger conveyor system according to claim 2, wherein: Both ends of the connecting member are respectively connected to the lower surface of the comb plate and the upper surface of the pressure rail, and at least one of the connecting members is arranged adjacent to the comb teeth.

4. The passenger conveyor system according to claim 2, wherein: The comb teeth are arranged at a first end of the comb plate, the pivot member is arranged at a second end of the comb plate opposite to the first end, and the pivot member includes a hinge.

5. The passenger conveyor system according to claim 2, wherein: The pressure rail is a first pressure rail and / or a second pressure rail, the first pressure rail is used for the main driving wheel of the step, and the second pressure rail is used for the auxiliary driving wheel of the step.

6. The passenger conveyor system according to claim 1, wherein: The reset mechanism includes one or more reset components, each of which includes: a bracket fixedly connected to a truss in the passenger conveyor system; A rod, both ends of which are respectively connected to the bracket and a pressure rail arranged above the guide wheel of the step; and A spring is sleeved on the rod, and two ends of the spring are respectively pressed against the bracket and the pressure rail, when the spring is in an initial state after installation, the comb plate is located at the first position, and the spring is in a compressed state when the comb plate is located at the second position.

7. The passenger conveyor system according to claim 6, wherein: The reset mechanism comprises two reset assemblies which are arranged at intervals along the length direction of the pressure rail, and the respective rods in the two reset assemblies and the connecting members are arranged linearly in the length direction of the pressure rail.

8. The passenger conveyor system according to claim 6, wherein: The bracket is configured to have a first arm and a second arm, the first arm is connected to the truss, the second arm is connected to the first arm and arranged above the pressure rail, the rod is connected to the second arm and one end of the spring is pressed against the second arm.

9. The passenger conveyor system of claim 1, wherein: The anti-collision device also includes a trigger member, which is configured to be triggered to generate a first working signal and send it to a controller in the passenger conveyor system when the comb plate is lifted from the first position to the second position. The controller controls the passenger conveyor system according to the first working signal.

10. The passenger conveyor system of claim 9, wherein: The triggering member is also configured to be triggered to generate a second working signal and send it to the controller when the comb plate returns from the second position to the first position, and the controller controls the passenger conveyor system according to the second working signal.

11. The passenger conveyor system of claim 9, wherein: The triggering member includes a switch component, and the controller controls the passenger conveyor system to stop operating according to the first working signal.

12. The passenger conveyor system of claim 9, wherein: The reset mechanism includes one or more reset components, each of which includes: a bracket fixedly connected to a truss in the passenger conveyor system; A rod, both ends of which are respectively connected to the bracket and a pressure rail arranged above the guide wheel of the step; and a spring, which is sleeved on the rod, and the two ends of the spring are pressed against the bracket and the pressure rail respectively, the comb plate is located at the first position when the spring is in an initial state after installation, and the spring is in a compressed state when the comb plate is located at the second position; Wherein, the triggering member is connected to the bracket and arranged above the pressure rail.

13. The passenger conveyor system of claim 1, wherein: The anti-collision device is arranged on the left and right sides of the step.

14. An anti-collision device for steps and comb plates, characterized in that: include: an actuating mechanism connected to a comb plate in a passenger conveyor system and configured to lift the comb plate upward from an initial first position to a second position to avoid collision with the step adjacent to the comb teeth of the comb plate to be engaged when the moving distance in the vertical upward direction of the passenger conveyor system exceeds a preset value; as well as A reset mechanism is arranged to return the comb plate from the second position to the first position after the step travels through the comb plate.

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