A step board missing passenger protection device applied in a moving sidewalk

Abstract

The application discloses a kind of application in the treadle missing passenger protection device in moving sidewalk, it can detect the full range of non-working section treadle missing fault, when treadle missing occurs in the critical section from non-working section to working section, after detecting the treadle missing signal, the device provides standing support to the passenger who just enters the working section of moving sidewalk from comb plate by synchronous conveying equipment when giving immediate stop command of moving sidewalk, the standing support distance provided by synchronous conveying equipment is greater than the maximum value of stop distance in table 5 of GB16899-2011, realizes the safety protection to passenger.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of moving walkways, in particular to a device that can realize safety protection for passengers entering the standing area of the moving walkway after detecting the missing situation in front of the comb plate. BACKGROUND

[0002] The moving walkway is a device with circulating running steps. The running track of the steps is divided into a working section and a non-working section, and the steps continuously circulate in the two sections. The steps in the working section bear the function of transporting passengers, which is the passenger standing section. The steps in the non-working section are located inside the device, and this part is invisible to passengers during operation. In the operation process of the device, each step will enter the non-working section from the working section, and then enter the working section from the non-working section to circulate.

[0003] During the circulation process, the risk of step missing may occur due to loose connections, broken steps, etc. When the step missing occurs in the working section, it can be visually perceived by passengers and they will take preventive measures. When the step missing occurs in the non-working section, passengers cannot identify the risk.

[0004] Currently, a step missing detection device is generally set in the non-working section. To ensure that the device can stop running before moving to the working section from the missing position after detecting the step missing, the detection device is usually installed in the non-working section and the distance to the working section is not less than the maximum value specified in Table 5 of GB16899-2011.

[0005] The patent specification CN210001402U detects the missing situation of the moving walkway steps by setting two detection sensors at different positions, i.e. setting a first sensor under the standing steps and a second detection sensor before the steps are flipped to the working section. The main disadvantage of the scheme of the utility model specification is that after the first sensor detects the step missing signal and issues an immediate stop command for the moving walkway, to ensure the safety of the passengers standing on the moving walkway transport steps, GB16899-2011 Table 5 specifies the stopping distance. After the moving walkway decelerates from the working speed to zero speed and stops in this distance, the missing position detected by the first detection sensor will continue to move forward, and the missing position will move from under the comb plate to the passenger standing area. At this time, the passengers entering the moving walkway standing area from the comb plate still have the risk of falling from the missing position.

[0006] The patent specification CN104817007A sets a pedal abnormality detection device near the reversing part of the pedal, and when the absence of the pedal is detected in the maintenance mode, the running speed of the pedal is switched to the low-speed side, prompting the maintenance personnel to realize that the pedal has been removed. The main disadvantage is that the position of the pedal abnormality detection device is similar to the second detection sensor of the patent specification CN210001402U, and the section from the entrance to the pedal abnormality detection device is a detection blind area. Even if the absence of the pedal is detected and the running speed of the moving sidewalk is switched to a lower maintenance mode speed, if the maintenance personnel fail to realize this change, there may be a risk that the maintenance personnel may enter the passenger standing area from the entrance position while the missing pedal continues to move forward from the entrance position to the passenger standing area, and at this time, the standing area has no pedal to support the maintenance personnel who are unaware of the risk, and the maintenance personnel may be at risk of injury. SUMMARY

[0007] The present application conceives a device for protecting passengers when the position of the missing pedal moves from the non-working section to the working section of the moving sidewalk driven by the pedal chain.

[0008] The pedal absence passenger protection device applied in the moving sidewalk of the present application comprises:

[0009] A first pedal absence detection device is arranged at the first end side of the moving sidewalk, which is used to detect the pedal absence condition when the moving sidewalk enters the working section from the non-working section in the first running direction, and issues a stop command when the first pedal absence detection device detects the pedal absence before the moving sidewalk enters the working section from the non-working section in the first running direction.

[0010] A second pedal absence detection device is arranged at the second end side of the moving sidewalk, which is used to detect the pedal absence condition when the moving sidewalk enters the working section from the non-working section in the second running direction, and issues a stop command when the second pedal absence detection device detects the pedal absence before the moving sidewalk enters the working section from the non-working section in the second running direction. The device further comprises:

[0011] A first synchronous conveying device is arranged at the first end side of the moving sidewalk, and a second synchronous conveying device is arranged at the second end side of the moving sidewalk. The first and second synchronous conveying devices are powered by the pedal chain of the moving sidewalk and follow the synchronous movement of the moving sidewalk. A passenger standing section is arranged on each of the first and second synchronous conveying devices, and the length L of the passenger standing section is located below the pedals of the moving sidewalk.

[0012] In a preferred embodiment of the present application, the length L of the passenger standing section is not less than the maximum value specified in Table 5 of GB 16899-2011.

[0013] In a preferred embodiment of the present application, the length L of the passenger standing section includes an increment generated by the increase in speed.

[0014] In a preferred embodiment of the present application, the passenger standing section is kept in a non-contact state with the support plate and the tread of the moving walkway when no passenger stands on the passenger standing section, and the support plate under the passenger standing section supports the synchronous conveying belt of the standing section when a passenger stands on the passenger standing section.

[0015] In a preferred embodiment of the present application, a first frame and a second frame are further included, wherein the first frame is arranged at the first end side of the moving walkway, the first tread absence detection device and the first synchronous conveying equipment are installed in the first frame, and the second tread absence detection device and the second synchronous conveying equipment are installed in the second frame.

[0016] In a preferred embodiment of the present application, the first tread absence detection device and the second tread absence detection device further jointly detect the absence of the tread running in the non-working section.

[0017] In a preferred embodiment of the present application, the first and second pedal absence detection devices each include two pedal absence detection sensors, which are divided into first and second pedal absence detection sensors. The second pedal absence detection sensor in the first and second pedal absence detection devices is located directly below the tread of the moving sidewalk. The first pedal absence detection sensor in the first and second pedal absence detection devices is installed on the non-working section and is spaced apart from the second pedal absence detection sensor by a distance greater than the maximum value specified in Table 5 of GB 16899-2011. When the first pedal absence detection sensor in the first pedal absence detection device detects a pedal absence position of the moving sidewalk moving from the first running direction by the non-working section, a stop command is issued. When the first pedal absence detection sensor in the second pedal absence detection device detects a pedal absence position of the moving sidewalk moving from the second running direction by the non-working section, a stop command is issued. When the second pedal absence detection sensor in the first pedal absence detection device detects a pedal absence position occurring between the first and second pedal absence detection sensors and moving from the first running direction, a stop command is issued. When the second pedal absence detection sensor in the second pedal absence detection device detects a pedal absence position occurring between the first and second pedal absence detection sensors and moving from the second running direction, a stop command is issued.

[0018] In a preferred embodiment of the present application, the distance between the first and second pedal absence detection sensors is greater than the maximum value specified in Table 5 of GB 16899-2011.

[0019] In a preferred embodiment of the present application, the first and second synchronous conveying devices have the same structure and each further includes a synchronous driving wheel set, a synchronous driven wheel set, a synchronous tensioning wheel set, and a synchronous conveying belt. The synchronous driving wheel set, the synchronous driven wheel set, and the synchronous tensioning wheel set in the first synchronous conveying device are installed on the first frame, and the synchronous driving wheel set, the synchronous driven wheel set, and the synchronous tensioning wheel set in the second synchronous conveying device are installed on the second frame. The synchronous conveying belt is looped around the synchronous driving wheel set, the synchronous driven wheel set, and the synchronous tensioning wheel set. The synchronous driving wheel set is powered by the pedal chain. The passenger standing section is located above the synchronous conveying belt between the synchronous driven wheel set and the synchronous tensioning wheel set. When no passenger is standing on the passenger standing section, the passenger standing section is in a non-contact state with the support plate and the tread of the moving sidewalk. When a passenger is standing on the passenger standing section, the support plate below the passenger standing section supports the synchronous conveying belt of the standing section.

[0020] In a preferred embodiment of the present application, the passenger standing section is implemented by a support plate, which is installed on the first frame and the second frame and located below the synchronous conveying belt.

[0021] In a preferred embodiment of the present application, the synchronous driving wheel set comprises a driving shaft, a conveying belt driving wheel, a pair of overrunning clutches and a pair of pedal chain sprockets, both ends of the driving shaft are respectively installed on the first frame and the second frame through a first belt seat bearing, the conveying belt driving wheel is arranged at the middle position of the driving shaft, and a pair of pedal chain sprockets are respectively installed on both ends of the driving shaft through an overrunning clutch; the pair of pedal chain sprockets are engaged with the pedal chain.

[0022] In a preferred embodiment of the present application, a first synchronous conveying belt retainer is installed at each end of the conveying belt driving wheel.

[0023] In a preferred embodiment of the present application, the overrunning clutch controls the driving shaft to move in only one direction.

[0024] In a preferred embodiment of the present application, the synchronous conveying belts in the first synchronous conveying device and the second synchronous conveying device are all single-direction running, wherein the running direction of the synchronous conveying belt in the first synchronous conveying device is the same as the downward running direction of the moving sidewalk, and the running direction of the synchronous conveying belt in the second synchronous conveying device is the same as the upward running direction of the moving sidewalk.

[0025] In a preferred embodiment of the present application, the running speed of the synchronous conveying belt is the same as the running speed of the pedal.

[0026] In a preferred embodiment of the present application, the movement direction of the synchronous conveying belt is the same as the movement direction of the pedal of the moving sidewalk, and the running speed of the synchronous conveying belt is allowed to be within 10% higher than the running speed of the pedal.

[0027] In a preferred embodiment of the present application, the width of the synchronous conveying belt is the same as the width of the pedal of the moving sidewalk.

[0028] In a preferred embodiment of the present application, the surface of the synchronous conveying belt for passenger standing is treated by a slip-resistant treatment method meeting the requirements of Table J.1 of GB 16899-2011.

[0029] In a preferred embodiment of the present application, each overrunning clutch is separated from the adjacent belt seat bearing by a first positioning sleeve on the driving shaft.

[0030] In a preferred embodiment of the present application, the synchronous driven wheel set comprises a driven wheel shaft, and the two ends of the driven wheel shaft are respectively mounted on the first frame and the second frame through a second belt seat bearing, and the synchronous conveying belt is wound around the driven wheel shaft.

[0031] In a preferred embodiment of the present application, a second synchronous conveying belt retainer is mounted at each end of the driven wheel shaft.

[0032] In a preferred embodiment of the present application, the synchronous tensioning wheel set comprises a tensioning wheel shaft, a pair of bearing seats, a pair of bearings, a pair of tensioning rods, a pair of spring end covers, a pair of spring seats, a pair of springs and a pair of nuts; the two ends of the tensioning wheel shaft are respectively mounted on a bearing seat through a bearing, and the pair of bearing seats are slidingly mounted on the first frame and the second frame; one end of the pair of tensioning rods is fixedly connected with the pair of bearing seats respectively; the pair of spring seats are fixed on the first frame and the second frame, the other end of the tensioning rod passes through a spring seat, and after the spring is sleeved, the tensioning rod passes through the spring end cover, the nut is screwed on the other end of the tensioning rod passing through the spring end cover, and the position of the bearing seat can be adjusted through the spring, the spring end cover and the tensioning rod by rotating the nut, so as to tension the synchronous conveying belt through the tensioning wheel shaft; and the synchronous conveying belt is wound around the middle position of the tensioning wheel shaft.

[0033] In a preferred embodiment of the present application, the bearing seat is slidingly arranged on the bearing seat guide, and the bearing seat guide is fixed on the first frame and the second frame.

[0034] In a preferred embodiment of the present application, a third synchronous conveying belt retainer is mounted at each end of the tensioning wheel shaft.

[0035] In a preferred embodiment of the present application, a second positioning sleeve is mounted at each end of the tensioning wheel shaft, and the second positioning sleeve is located between the bearing and the third synchronous conveying belt retainer.

[0036] Due to the adoption of the above technical scheme, the pedal missing passenger protection device has the following advantages:

[0037] Firstly, the missing risk in the entire non-working section of the moving sidewalk can be detected in operation.

[0038] Secondly, when the pedal missing position is in the critical region of the pedal moving from the non-working section to the working section, the synchronous conveying equipment provides a safe standing area for the passenger who just enters the moving sidewalk working section from the comb plate position, and the length of the area exceeds the length of the moving sidewalk stopping distance, so that the passenger can be protected in the entire process of the moving sidewalk stopping.

[0039] The present application solves the problem that the passenger cannot be protected in safety when the pedal missing position moves from the comb plate position to the working section, and avoids the harm caused by the maintenance personnel misstepping into the moving pedal missing position from the entrance position without realizing the change of the pedal speed in patent CN104817007A. BRIEF DESCRIPTION OF DRAWINGS

[0040] The present application will be described in detail below with reference to the accompanying drawings, which are exemplary of the present application.

[0041] Figure 1 The installation position of the pedal missing passenger protection device on the moving sidewalk is shown.

[0042] Figure 2 The running direction of the synchronous conveying device installed in the upper frame of the moving sidewalk is shown.

[0043] Figure 3 The running direction of the synchronous conveying device installed in the lower frame of the moving sidewalk is shown.

[0044] Figure 4 The right view of the synchronous driving wheel set is shown.

[0045] Figure 5 The top view of the synchronous driving wheel set is shown.

[0046] Figure 6 The front view of the synchronous driven wheel set is shown.

[0047] Figure 7 The right view of the synchronous tensioning wheel set is shown.

[0048] Figure 8 The top view of the synchronous tensioning wheel set is shown.

[0049] The meaning of each code shown in the above figure is as follows: 1a, 1b are both synchronous conveying devices (1a is the first synchronous conveying device mentioned above, and 1b is the second synchronous conveying device mentioned above); 2a, 2b are both pedal absence detection devices (2a is the first pedal absence detection device mentioned above, and 2b is the second pedal absence detection device mentioned above); 3a, 3b are both synchronous driving wheel sets; 4a, 4b are both synchronous driven wheel sets; 5a, 5b are both synchronous tensioning wheel sets; 6a, 6b are both synchronous conveying belts; 7 is a pedal chain; 8 is an upper frame (the first frame mentioned above); 9 is a lower frame (the second frame mentioned above); 10a, 10b are both support plates; 11 is a driving shaft; 12 is a conveying belt driving wheel; 13a, 13b are both keys for connecting driving wheels; 14a, 14b are both overrunning clutches; 15a, 15b are both keys for connecting overrunning clutches and shafts; 16a, 16b are both pedal chain sprockets; 17a, 17b are both positioning sleeves (the first positioning sleeve mentioned above); 18a, 18b are both bearing seats (the first bearing seat mentioned above); 19a, 19b are both hole retainer rings; 20a, 20b are both shaft retainer rings; 21a, 21b are both synchronous conveying belt retainer rings (the first synchronous conveying belt retainer ring mentioned above); 22 is a driven wheel shaft; 23a, 23b are both synchronous conveying belt retainer rings (the second synchronous conveying belt retainer ring mentioned above); 24a, 24b are both bearing seats (the second bearing seat mentioned above); 25a, 25b are both shaft retainer rings; 26 is a tensioning wheel shaft; 27a, 27b are both synchronous conveying belt retainer rings (the third synchronous conveying belt retainer ring mentioned above); 28a, 28b are both positioning sleeves (the second positioning sleeve mentioned above); 29a, 29b are both bearings; 30a, 30b are both shaft retainer rings; 31a, 31b are both bearing seats; 32a, 32b are both tensioning rods; 33a, 33b are both spring seats; 34a, 34b are both springs; 35a, 35b are both spring end covers; 36a, 36b are both nuts; 37 is a bearing seat guide; 38a, 38b are both first pedal absence detection sensors; 39a, 39b are both second pedal absence detection sensors; 40a, 40b are both comb plates; 41a, 41b are both first pedals. DETAILED DESCRIPTION

[0050] Reference Figures 1 to 3 The pedal absence passenger protection device of the present application is applicable to moving sidewalks, which include an upper frame 8 and a lower frame 9, and the main function of which is to provide support for the synchronous conveying devices 1a, 1b.

[0051] Each moving sidewalk is provided with two sets of synchronous conveying devices, i.e., synchronous conveying devices 1a, 1b, which are installed in the upper frame 8 and the lower frame 9, respectively.

[0052] The pedal chain 7 provides driving force for the synchronous conveying device 1a, 1b, and drives the synchronous conveying device 1a, 1b to move at the same speed in the same direction as the treadle 41a, 41b of the moving walkway.

[0053] The pedal absence detection device 2a, 2b includes two sensors, the first pedal absence detection sensor 38a, 38b is installed below the non-working section, and the size of the second pedal absence detection sensor 39a, 39b is greater than the maximum value specified in Table 5 of GB16899-2011. The first pedal absence detection sensor 38a, 38b and the second pedal absence detection sensor 39a, 39b are both installed directly below the comb plate 40a, 40b, i.e. directly below the first treadle 41a, 41b moving from the non-working section to the working section. When the first pedal absence detection sensor 38a, 38b detects the absence of a treadle moving from the running direction at the missing position, the moving walkway receives an immediate stop command generated by the first pedal absence detection sensor 38a, 38b and stops running before the missing position moves to the working section of the moving walkway.

[0054] When the missing position of the treadle occurs between the first pedal absence detection sensor 38a, 38b and the second pedal absence detection sensor 39a, 39b, the second pedal absence detection sensor 39a, 39b generates an immediate stop command when the missing position moves to the second pedal absence detection sensor 39a, 39b. The moving walkway starts to stop and decelerate after the stop command, and the missing position of the treadle continues to move forward from directly below the comb plate 40a, 40b to the working section of the moving walkway during the deceleration and stopping process. At this time, the passengers who have just entered the moving walkway from the comb plate 40a, 40b are provided with a standing area by the synchronous conveying belt 6a, 6b in the synchronous conveying device 1a, 1b, and the synchronous conveying belt 6a, 6b provides the passengers with a standing area while the moving walkway is running synchronously at a deceleration, and continues to provide the passengers with a standing area before the moving walkway stops running.

[0055] The synchronous conveying device 1a, 1b installed in the upper frame 8 and the lower frame 9 is a single-direction running, the synchronous conveying device 1a installed in the upper frame 8 has the same working direction as the downward running direction of the moving walkway, and the synchronous conveying device 1b installed in the lower frame 9 has the same working direction as the upward running direction of the moving walkway. The synchronous conveying device 1a, 1b uses an overrunning clutch 14a, 14b to realize single-direction running.

[0056] The synchronous conveying device 1a, 1b comprises a synchronous driving wheel set 3a, 3b, a synchronous driven wheel set 4a, 4b, a synchronous tension wheel set 5a, 5b, and a synchronous conveying belt 6a, 6b. The synchronous driving wheel set 3a, 3b serves as the power source of the synchronous conveying device 1a, 1b, and drives the synchronous conveying belt 6a, 6b to run. The synchronous driven wheel set 4a, 4b and the synchronous tension wheel set 5a, 5b are located at both ends of the synchronous conveying belt 6a, 6b that provides a standing area for passengers, and provide support and tensioning effect for the synchronous conveying belt 6a, 6b. The synchronous conveying belt 6a, 6b is wrapped around the synchronous driving wheel set 3a, 3b, the synchronous driven wheel set 4a, 4b, and the synchronous tension wheel set 5a, 5b.

[0057] The running speed of the synchronous conveying belt 6a, 6b is the same as that of the tread plate 41a, 41b, and the length L of the passenger standing section of the synchronous conveying belt 6a, 6b needs to be not less than the maximum value specified in Table 5 of GB 16899-2011; the design running speed of the synchronous conveying belt 6a, 6b can be higher than that of the tread plate 41a, 41b, and the allowed speed increase value is within 10%, and in this case, the length L of the passenger standing section of the synchronous conveying belt 6a, 6b needs to include the increment caused by the speed increase.

[0058] The support plate 10a, 10b is arranged below the passenger standing section of the synchronous conveying belt 6a, 6b, and when there is no passenger standing on the synchronous conveying belt 6a, 6b, the support plate 10a, 10b maintains a small gap with the synchronous conveying belt 6a, 6b to realize a non-contact state, and at the same time, the synchronous conveying belt 6a, 6b also maintains a small gap with the tread plate 41a, 41b to realize a non-contact state; when a passenger stands on the synchronous conveying belt 6a, 6b, the support plate 10a, 10b supports the synchronous conveying belt 6a, 6b.

[0059] The pedal chain sprocket 16a, 16b in the synchronous drive wheel set 3a, 3b meshes with the pedal chain 7, is driven to rotate by the pedal chain 7, and drives the outer ring of the overrunning clutch 14a, 14b to rotate synchronously. When the moving sidewalk is running upward, only the overrunning clutch 14a, 14b in the lower frame 9 is in the working direction, and at this time, the overrunning clutch 14a, 14b in the upper frame 8 is in the overrunning direction, i.e. only the lower overrunning clutch 14a, 14b drives the lower conveyor belt drive wheel 12 through the drive shaft 11, and the lower synchronous conveyor belt 6b is driven to run in the same direction as the moving sidewalk pedal by the lower conveyor belt drive wheel 12. When the moving sidewalk is running downward, only the overrunning clutch 14a, 14b in the upper frame 8 is in the working direction, and at this time, the overrunning clutch 14a, 14b in the lower frame 9 is in the overrunning direction, i.e. only the upper overrunning clutch 14a, 14b drives the upper conveyor belt drive wheel 12 through the drive shaft 11, and the upper synchronous conveyor belt 6a is driven to run in the same direction as the moving sidewalk pedal by the upper conveyor belt drive wheel 12.

[0060] The width of the synchronous conveyor belt 6a, 6b is the same as the width of the moving sidewalk pedal 41a, 41b, and the slip-resistant surface of the synchronous conveyor belt 6a, 6b is treated according to the processing method required to meet the requirements of GB16899-2011 Table J.1.

[0061] The synchronous conveyor belt 6a, 6b is limited left and right during operation by the synchronous conveyor belt retaining ring 21a, 21b on the synchronous drive wheel set 3a, 3b, the synchronous conveyor belt retaining ring 23a, 23b on the synchronous driven wheel set 4a, 4b, and the synchronous conveyor belt retaining ring 27a, 27b on the synchronous tensioner set 5a, 5b. Among them:

[0062] In particular, the synchronous conveyor belt 6a, 6b is limited left and right during operation by the synchronous conveyor belt retaining ring 21a, 21b on the synchronous drive wheel set 3a, 3b, the synchronous conveyor belt retaining ring 23a, 23b on the synchronous driven wheel set 4a, 4b, and the synchronous conveyor belt retaining ring 27a, 27b on the synchronous tensioner set 5a, 5b. Among them: Figure 4 and Figure 5, the two ends of the driving shaft 11 are each mounted on the upper frame 8 and the lower frame 9 through a bearing with seat 18a, 18a, which is axially limited by a shaft retainer 20a, 20b. The driving wheel 12 is keyed in the middle of the driving shaft 12 through a key 13a, 13b for driving wheel connection, and a pair of pedal chain sprockets 16a, 16b are each mounted on the two ends of the driving shaft 12 through an overrunning clutch 14a, 14b, which is axially limited in the pair of pedal chain sprockets 16a, 16b through a hole retainer 19a, 19b; a positioning sleeve 17a, 17b is mounted on each end of the driving shaft 12, and each overrunning clutch 14a, 14b is separated from the adjacent bearing with seat 18a, 18a by the positioning sleeve 17a, 17b. A synchronous conveyor belt retainer 21a, 21b is mounted on each end of the driving wheel 12, and the synchronous conveyor belts 6a, 6b are wrapped around the driving wheel 12.

[0063] In particular, referring to Figure 6 , the two ends of the driven shaft 22 in the synchronous driven wheel set 4a, 4b are each mounted on the upper frame 8 and the lower frame 9 through a bearing with seat 24a, 24b, which is axially limited by a shaft retainer 25a, 25b. A synchronous conveyor belt retainer 23a, 23b is mounted on each end of the driven shaft 22. The synchronous conveyor belts 6a, 6b are wrapped around the driven shaft 22.

[0064] In particular, referring to Figure 7 and Figure 8 , the two ends of the tensioner shaft 26 are each mounted on a bearing seat 31a, 31b through a bearing 29a, 29b, and a pair of bearing seats 31a, 31b are slidingly mounted on a bearing seat guide 37, which is fixed on the upper frame 8 and the lower frame 9.

[0065] One end of a pair of tensioning rods 32a, 32b is fixedly connected with a pair of bearing seats 31a, 31b respectively, a pair of spring seats 33a, 33b is fixed on the upper frame 8 and the lower frame 9, the other end of the tensioning rods 32a, 32b passes through a spring seat 33a, 33b and is sleeved with a spring 34a, 34b, then passes through a spring end cover 35a, 35b, a nut 36a, 36b is screwed on the other end of the tensioning rods 32a, 32b passing through the spring end cover 35a, 35b, rotating the nut 36a, 36b can adjust the position of the bearing seat 31a, 31b through the spring 34a, 34b, the spring end cover 35a, 35b, the tensioning rods 32a, 32b, and then through the tensioning wheel shaft 26 to tension the synchronous conveying belt 6a, 6b; the synchronous conveying belt 6a, 6b is wrapped around the middle position of the tensioning wheel shaft 26. A synchronous conveying belt blocking ring 27a, 27b is installed at each end of the tensioning wheel shaft 26. A second positioning sleeve 28a, 28b is installed at each end of the tensioning wheel shaft 26, and the positioning sleeve 28a, 28b is located between the bearing 29a, 29b and the synchronous conveying belt blocking ring 27a, 27b. The spring 34a, 34b is a compression spring, which realizes continuous tensioning of the synchronous conveying belt 6a, 6b through the spring 34a, 34b.

[0066] It is obvious to those skilled in the art that the present application is not limited to the examples described above, and changes in structure or shape can be made within the scope of the claims, for example, using a tensioning wheel instead of a spring structure in the synchronous tensioning wheel set to realize tensioning of the synchronous conveying belt, using other transmission members with similar functions instead of the synchronous conveying belt and the pulley, using other types of one-way running components instead of the overrunning clutch, using a driver instead of the pedal chain drive, changing the number of driven wheel sets, etc. can be considered within the protection scope of the present application.

Claims

1. A kind of to be applied to the missing passenger protection device of treadle in moving sidewalk, comprising: First treadle missing detection device is arranged in the first end side of the moving sidewalk, and the first treadle missing detection device is used to detect the missing treadle condition of the moving sidewalk by non-working section into working section, when the first treadle missing detection device detects the missing treadle before the moving sidewalk by non-working section into working section, stop command is sent out; Second treadle missing detection device is arranged in the second end side of the moving sidewalk, and the second treadle missing detection device is used to detect the missing treadle condition of the moving sidewalk by non-working section into working section, when the second treadle missing detection device detects the missing treadle before the moving sidewalk by non-working section into working section, stop command is sent out;It is characterized in that, further comprising: First synchronous conveying equipment is arranged in the first end side of the moving sidewalk and second synchronous conveying equipment is arranged in the second end side of the moving sidewalk, and the first synchronous conveying equipment and second synchronous conveying equipment are all powered by the treadle chain of the moving sidewalk and follow the synchronous movement of the moving sidewalk, and there is a passenger standing section on the first synchronous conveying equipment and second synchronous conveying equipment, and the passenger standing section length L is located below the treadle of the moving sidewalk; Further comprising first frame and second frame, wherein the first frame is arranged in the first end side of the moving sidewalk, and the first treadle missing detection device and first synchronous conveying equipment are installed in the first frame, and the second treadle missing detection device and second synchronous conveying equipment are installed in the second frame; The first synchronous conveying equipment and second synchronous conveying equipment are structurally identical, and further comprising: synchronous driving wheel group, synchronous driven wheel group, synchronous tensioning wheel group and synchronous conveying belt;The synchronous driving wheel group, synchronous driven wheel group, synchronous tensioning wheel group in the first synchronous conveying equipment are installed on the first frame, the synchronous driving wheel group, synchronous driven wheel group, synchronous tensioning wheel group in the second synchronous conveying equipment are installed on the second frame, and the synchronous conveying belt is wound around the synchronous driving wheel group, synchronous driven wheel group, synchronous tensioning wheel group;The synchronous driving wheel group is powered by the treadle chain, and the passenger standing section is located above the synchronous conveying belt between the synchronous driven wheel group and synchronous tensioning wheel group; The passenger standing section is supported by a support plate, and the support plate is installed on the first frame and second frame and located below the synchronous conveying belt.

2. A step-missing passenger protection device for use in a moving walkway as defined in claim 1, characterized in that The length L of the passenger standing section needs to be not less than the maximum value specified in Table 5 of GB16899-2011.

3. A step-missing passenger protection device for use in a moving walkway as defined in claim 2, characterized in that The length L of the passenger standing section needs to include the increment generated by the increase in speed.

4. A step-missing passenger protection device for use in a moving walkway as defined in claim 3, characterized in that When there is no passenger standing on the passenger standing section, the passenger standing section, the support plate and the treadle of the moving sidewalk remain non-contact state, and when the passenger stands on the passenger standing section, the support plate below the passenger standing section supports the synchronous conveying belt of the standing section.

5. A step-missing passenger protection device for use in a moving walkway as claimed in any one of claims 1 to 4, characterized in that, The first and second pedal absence detection devices also detect the absence of the pedal running in the non-working section.

6. A step-missing passenger protection device for use in a moving walkway as defined in claim 5, characterized in that The first and second pedal absence detection devices each include two pedal absence detection sensors, which are divided into first and second pedal absence detection sensors. The second pedal absence detection sensor in the first and second pedal absence detection devices is located directly below the pedal of the moving walkway. The first pedal absence detection sensor in the first and second pedal absence detection devices is installed in the non-working section and is spaced apart from the second pedal absence detection sensor by a distance greater than the maximum value specified in Table 5 of GB 16899-2011. When the first pedal absence detection sensor in the first pedal absence detection device detects a pedal absence position of the moving walkway moving from the first running direction in the non-working section, a stop command is issued. When the first pedal absence detection sensor in the second pedal absence detection device detects a pedal absence position of the moving walkway moving from the second running direction in the non-working section, a stop command is issued. When the second pedal absence detection sensor in the first pedal absence detection device detects a pedal absence position occurring between the first and second pedal absence detection sensors and moving from the first running direction, a stop command is issued. When the second pedal absence detection sensor in the second pedal absence detection device detects a pedal absence position occurring between the first and second pedal absence detection sensors and moving from the second running direction, a stop command is issued.

7. A step-missing passenger protection device for use in a moving walkway as defined in claim 6, characterized in that The synchronous drive wheel set includes a drive shaft, a conveyor belt drive wheel, a pair of overrunning clutches, and a pair of pedal chain sprockets. The drive shaft is installed on the first and second frames via a first belt seat bearing at each end. The conveyor belt drive wheel is arranged at the middle of the drive shaft. The pair of pedal chain sprockets are installed on the two ends of the drive shaft via an overrunning clutch. The pair of pedal chain sprockets are engaged with the pedal chain.

8. A step-missing passenger protection device for use in a moving walkway as defined in claim 7, characterized in that A first synchronous conveyor belt stop ring is installed at each end of the conveyor belt drive wheel.

9. A step-missing passenger protection device for use in a moving walkway as defined in claim 8, characterized in that The overrunning clutch controls the drive shaft to move in only one direction.

10. A step-missing passenger protection device for use in a moving walkway as defined in claim 9, characterized in that The synchronous conveyor belts in the first and second synchronous conveying devices run in only one direction. The running direction of the synchronous conveyor belt in the first synchronous conveying device is the same as the downward running direction of the moving walkway. The running direction of the synchronous conveyor belt in the second synchronous conveying device is the same as the upward running direction of the moving walkway.

11. A step-missing passenger protection device for use in a moving walkway as defined in claim 10, characterized in that The running speed of the synchronous conveyor belt is the same as the running speed of the pedal.

12. A step-missing passenger protection device for use in a moving walkway as defined in claim 10, wherein The movement direction of the synchronous conveyor belt is the same as the movement direction of the pedal of the moving walkway. The running speed of the synchronous conveyor belt is within 10% of the running speed of the pedal.

13. A step-missing passenger protection device for use in a moving walkway as defined in claim 12, characterized in that The width of the synchronous conveyor belt is the same as the width of the pedal of the moving walkway.

14. A step-missing passenger protection device for use in a moving walkway as defined in claim 13, characterized in that The anti-skid level of the surface of the synchronous conveying belt for passengers to stand on is treated by a treatment method meeting the requirement of GB16899-2011 Table J.

1.

15. A step-missing passenger protection device for use in a moving walkway as defined in claim 14, characterized in that Each overrunning clutch is separated from the adjacent belt seat bearing by a first positioning sleeve on the driving shaft.

16. A step-missing passenger protection device for use in a moving walkway as defined in claim 15, characterized in that The synchronous driven wheel set comprises a driven wheel shaft, two ends of the driven wheel shaft are respectively installed on the first frame and the second frame through a second belt seat bearing, and the synchronous conveying belt is wound around the driven wheel shaft.

17. A step-missing passenger protection device for use in a moving walkway as defined in claim 16, characterized in that A second synchronous conveying belt retainer is installed at each end of the driven wheel shaft.

18. A step-missing passenger protection device for use in a moving walkway as defined in claim 17, characterized in that The synchronous tensioning wheel set comprises a tensioning wheel shaft, a pair of bearing seats, a pair of bearings, a pair of tensioning rods, a pair of spring end covers, a pair of spring seats, a pair of springs and a pair of nuts; two ends of the tensioning wheel shaft are respectively installed on a bearing seat through a bearing, a pair of bearing seats are slidingly installed on the first frame and the second frame; one end of a pair of tensioning rods is respectively fixedly connected with a pair of bearing seats; a pair of spring seats are fixedly installed on the first frame and the second frame, the other end of the tensioning rod passes through a spring seat, is sleeved with a spring and then passes through a spring end cover, a nut is screwed on the other end of the tensioning rod passing through the spring end cover, and the position of the bearing seat can be adjusted through the spring, the spring end cover and the tensioning rod by rotating the nut, so that the synchronous conveying belt is tensioned through the tensioning wheel shaft; the synchronous conveying belt is wound around the middle position of the tensioning wheel shaft.

19. A step-missing passenger protection device for use in a moving walkway as defined in claim 18, characterized in that The bearing seat is slidingly arranged on a bearing seat guide, and the bearing seat guide is fixedly installed on the first frame and the second frame.

20. A step-missing passenger protection device for use in a moving walkway as defined in claim 19, wherein, A third synchronous conveying belt retainer is installed at each end of the tensioning wheel shaft.

21. A step-missing passenger protection device for use in a moving walkway as defined in claim 20, wherein, A second positioning sleeve is installed at each end of the tensioning wheel shaft, and the second positioning sleeve is located between the bearing and the third synchronous conveying belt retainer.

Images