Skirt panel stress monitoring apparatus and escalator

Abstract

Disclosed in the present application are a skirt panel stress monitoring apparatus and an escalator. The skirt panel stress monitoring apparatus comprises a skirt panel and a monitoring switch. The skirt panel is arranged at one side end of a step of an escalator, and the skirt panel has a first side face and a second side face which are opposite, the first side face being arranged facing the step, the second side face being arranged facing away from the step, and the second side face being provided with a first recess. The skirt panel can deform at the first recess and form a movable panel region; when the first side face is pressed by an object, the movable panel region can move away from the first side face; the monitoring switch and the movable panel region are correspondingly arranged; and when the movable panel region moves, the movable panel region triggers the monitoring switch.

Description

Apron plate force monitoring device and escalator

[0001] This application claims priority to Chinese patent application No. 202311723329.6 filed on December 14, 2023, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of escalators, and in particular to an apron plate force monitoring device and an escalator. Background Art

[0003] Statistics show that accidents involving people (usually children) being pinched by escalator apron panels, resulting in personal injury, occur frequently. Accidents in which people are pinched by apron panels while riding an escalator usually occur when the escalator is descending. The process of such injury accidents usually includes the following two stages: the first stage is that a flexible object is pinched in the gap between the apron panel and the step; the second stage is that the pinched flexible object is carried to the intersection of the step and the comb plate, resulting in shearing, which can cause serious injury accidents.

[0004] Existing standards and technologies mainly reduce the occurrence of such accidents by setting up anti-pinch devices for apron plates, reducing the surface roughness of apron plates, controlling the gap value between apron plates and steps, and increasing the stiffness of apron plates. Among them, increasing the stiffness of apron plates can effectively reduce the occurrence of such accidents, but the higher the stiffness of apron plates, the less likely the monitoring switch used to monitor objects being pinched in the gap between apron plates and steps will operate. Technical issues

[0005] The main purpose of this application is to provide an apron plate force monitoring device and an escalator, which aims to ensure the overall rigidity of the apron plate while significantly improving the monitoring sensitivity of the apron plate when it is under force, thereby improving the safety of the escalator. Technical Solutions

[0006] To achieve the above-mentioned purpose, the present application proposes an apron plate force monitoring device for an escalator, wherein the apron plate force monitoring device includes an apron plate and a monitoring switch, wherein the apron plate is used to be set at one side end of the step of the escalator, and the apron plate has a first side surface and a second side surface relative to each other, the first side surface is used to be set relative to the step, and the second side surface is used to be set away from the step, and a first groove is provided on the second side surface, and the apron plate can be deformed at the first groove to form a movable plate area, so that when the first side surface is squeezed by an object, the movable plate area can move away from the first side surface; the monitoring switch is set corresponding to the movable plate area, and is triggered by the movable plate area when the movable plate area moves.

[0007] In one embodiment, the first groove is arranged in a ring shape to define the movable plate area, and the first groove includes two first groove sections arranged opposite to each other and two second groove sections arranged opposite to each other, and the two ends of each first groove section are respectively connected to the two second groove sections; the movable plate area is also provided with a second groove, and the two ends of the second groove are respectively connected to the two first groove sections to separate the movable plate area into two sub-movable plate areas, each sub-movable plate area has an inner end located at the second groove and an outer end located at the second groove section, and the apron plate can be deformed at the second groove so that when the first side is pressurized by an object, the two sub-movable plate areas can rotate with their outer ends as the rotating axis, and at least one of the sub-movable plate areas triggers the monitoring switch on its active stroke.

[0008] In one embodiment, the two second slot sections are configured to extend along a direction intersecting with a running direction of the steps, so that the rotation axes of the two sub-movable panel areas are configured to intersect with the running direction of the steps.

[0009] In one embodiment, the two first slot sections are both provided through the first side surface and the second side surface, and the two first slot sections are both used to extend along the running direction of the step.

[0010] In one embodiment, the apron plate force monitoring device further comprises a triggering portion, which is provided on one of the sub-movable plate areas so as to rotate along with the sub-movable plate area during the rotation of the sub-movable plate area to trigger the monitoring switch.

[0011] In one embodiment, the apron plate includes the movable plate area and a fixed plate area arranged on the periphery of the movable plate area, and the monitoring switch is arranged on the second side surface of the fixed plate area; the triggering portion includes a fixed mounting rod arranged on the second side surface of the sub-movable plate area, and a switch triggering rod formed by extending laterally from the fixed mounting rod, and the switch triggering rod is arranged corresponding to the monitoring switch to trigger the monitoring switch when the sub-movable plate area rotates.

[0012] In one embodiment, the apron plate force monitoring device includes an elastic reset device, which includes an elastic member and an elastic adjustment device. The elastic member is used to provide an elastic reset force to the sub-active panel area; the elastic adjustment device is used to adjust the initial deformation of the elastic member to change the activity sensitivity of the sub-active panel area.

[0013] In one embodiment, the elastic member includes a compression spring provided on the side of the switch trigger rod facing away from the apron plate; the elastic adjustment device includes a pressing member for pressing the compression spring, and the pressing member is adjustable in the axial direction of the compression spring to adjust the initial compression amount of the compression spring.

[0014] In one embodiment, the apron plate force monitoring device includes a limiting device, which includes a fixed connecting rod arranged on the second side of the fixed plate area, and a limiting member laterally connected to the fixed connecting rod, and the limiting member is located on the side of the switch trigger rod away from the apron plate, so as to limit the movable stroke of the switch trigger rod in the movable direction away from the apron plate.

[0015] The present application also provides an escalator, which includes the apron plate force monitoring device as described above. Beneficial effects

[0016] In the technical solution of the present application, the apron plate force monitoring device is used for an escalator, and the apron plate force monitoring device includes an apron plate and a monitoring switch, the apron plate is used to be set at one side end of the step of the escalator, the apron plate has a first side surface and a second side surface relative to each other, the first side surface is used to be set relative to the step, and the second side surface is used to be set away from the step, and a first groove is provided on the second side surface, and the apron plate can be deformed at the first groove to form a movable plate area, so that when the first side surface is squeezed by an object, the movable plate area can move away from the first side surface; the monitoring switch The switch is arranged corresponding to the movable plate area and is triggered by the movable plate area when the movable plate area is active, that is, the apron plate is modified. By opening a first groove on the second side of the apron plate, the local stiffness of the apron plate is changed, so that the apron plate can be deformed at the first groove, thereby forming a movable plate area. When an object is clamped in the apron plate, the movable plate area can be active to trigger the monitoring switch, which solves the contradiction between the stiffness of the apron plate and the monitoring sensitivity of the apron plate under force. It can ensure the overall stiffness of the apron plate while significantly improving the monitoring sensitivity of the apron plate under force, thereby improving the safety of the escalator. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0018] Figure 1 is a schematic diagram of the dangerous areas when an escalator is running;

[0019] FIG2 is a schematic front view of the structure of an embodiment of the apron plate force monitoring device provided by the present application;

[0020] FIG3 is a cross-sectional view of FIG2 in the first state (the movable panel area is in a normal state);

[0021] FIG4 is a second state of the XX cross-sectional schematic diagram in FIG2 (the movable panel area is in a stressed state).

[0022] Description of Figure Numbers:

[0023] Reference numerals Name Reference numerals Name 100 Apron plate force monitoring device 4 Elastic reset device 1 Apron plate 41 Elastic member 11 First side surface 411 Compression spring 12 Second side surface 42 Elastic adjustment device 13 First groove 421 Pressing member 131 First groove section 4211 First nut 132 Second groove section 5 Switch fixing plate 14 Movable plate area 6 Bolt 141 Sub-movable plate area 7 First screw 15 Second groove 8 Gasket 16 Fixed plate area A Dangerous area 2 Monitoring switch a Step running direction 3 Triggering part h Exposed interval height of step running 31 Fixed mounting rod F Sub-movable plate area force 32 Switch triggering rod 200 Step 321 First penetration hole 322 Second penetration hole 9 Limiting device 92 Limiting member 91 Fixed connecting rod 921 Second nut 911 Second screw

[0024] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. Modes for Carrying Out the Invention

[0025] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0026] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), such directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0027] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0028] Statistics show that accidents involving people (usually children) being pinched by escalator apron panels, resulting in personal injury, occur frequently. Accidents in which people are pinched by apron panels while riding an escalator usually occur when the escalator is descending. The process of such injury accidents usually includes the following two stages: the first stage is that a flexible object is pinched in the gap between the apron panel and the step; the second stage is that the pinched flexible object is carried to the intersection of the step and the comb plate, resulting in shearing, which can cause serious injury accidents.

[0029] Existing standards and technologies mainly reduce the occurrence of such accidents by setting up anti-pinch devices for apron plates, reducing the surface roughness of apron plates, controlling the gap value between apron plates and steps, and increasing the stiffness of apron plates. Among them, increasing the stiffness of apron plates can effectively reduce the occurrence of such accidents, but the higher the stiffness of apron plates, the less likely the monitoring switch used to monitor objects being pinched in the gap between apron plates and steps will operate.

[0030] In view of this, the present application provides an apron plate force monitoring device and an escalator, which aims to ensure the overall rigidity of the apron plate while significantly improving the monitoring sensitivity of the apron plate force, thereby improving the safety of the escalator. Figure 1 is a schematic diagram of the dangerous area A during escalator operation, and Figures 2 to 4 are embodiments of the apron plate force monitoring device provided by the present application.

[0031] In an embodiment of the present application, please refer to the accompanying drawings. The apron plate force monitoring device 100 is used for an escalator. The apron plate force monitoring device 100 includes an apron plate 1 and a monitoring switch 2. The apron plate 1 is used to be set at one side end of the step 200 of the escalator. The apron plate 1 has a first side surface 11 and a second side surface 12 relative to each other. The first side surface 11 is used to be set relative to the step 200, and the second side surface 12 is used to be set away from the step 200. A first groove 13 is provided on the second side surface 12. The apron plate 1 can be deformed at the first groove 13 to form a movable plate area 14, so that when the first side surface 11 is squeezed by an object, the movable plate area 14 can move away from the first side surface 11; the monitoring switch 2 is set corresponding to the movable plate area 14, and is triggered by the movable plate area 14 when the movable plate area 14 moves.

[0032] In the technical solution of the present application, the apron plate force monitoring device 100 is used for an escalator, and the apron plate force monitoring device 100 includes an apron plate 1 and a monitoring switch 2. The apron plate 1 is used to be set at one side end of the step 200 of the escalator. The apron plate 1 has a first side surface 11 and a second side surface 12 relative to each other. The first side surface 11 is used to be set relative to the step 200, and the second side surface 12 is used to be set away from the step 200. A first groove 13 is provided on the second side surface 12. The apron plate 1 can be deformed at the first groove 13 to form a movable plate area 14, so that when the first side surface 11 is squeezed by an object, the movable plate area 14 can move away from the first side surface 11; the monitoring switch 2 and the movable The plate area 14 is set accordingly, and is triggered by the movable plate area 14 when the movable plate area 14 is active, that is, the apron plate 1 is modified, and the local stiffness of the apron plate 1 is changed by opening a first groove 13 on the second side surface 12 of the apron plate 1, so that the apron plate 1 can be deformed at the first groove 13, thereby forming a movable plate area 14. When an object is clamped in the apron plate 1 (that is, entering the dangerous area A in Figure 1, where a is the running direction of the step 200), the movable plate area 14 can be active to trigger the monitoring switch 2, which solves the contradiction between the stiffness of the apron plate 1 and the monitoring sensitivity of the force on the apron plate 1. While ensuring the overall stiffness of the apron plate 1, the monitoring sensitivity of the apron plate 1 when it is under force is significantly improved, thereby improving the safety of the escalator.

[0033] It should be noted that the function of the monitoring switch 2 involved in the above embodiment is to control the escalator to stop running and prevent more serious personal injuries. In addition, the monitoring switch 2 can be a switch connected to an alarm device such as an alarm bell or a warning light. The monitoring switch 2 controls the operation of the alarm bell or warning light to sound an alarm, reminding the staff to emergency brake the escalator in time to avoid personal injuries. Furthermore, the function of the monitoring switch 2 can also be a combination of the above two. It can not only control the escalator to stop running, but also make the alarm bell ring and the warning light flash to remind the staff to rescue the trapped people in time and ensure the health and life safety of the people. In addition, it should be noted that as long as the above functions can be achieved, the specific structural form of the monitoring switch 2 is not limited. The monitoring switch 2 can be a mechanical contact control switch or a photoelectric non-contact control switch.

[0034] It should also be noted that the apron plate 1 is a relatively important structural component on the escalator, and the state has set up mandatory safety regulations for this. However, statistics show that children are often caught by the apron plate 1 when riding the escalator, and accidents occur. The reason is that children's fingers and shoes are relatively small and soft, and can easily fit into the gap between the apron plate 1 and the step 200. The trapped object is brought by the escalator in continuous motion to the intersection of the step 200 and the comb plate of the escalator 1. The two are sheared, and the child is bound to suffer fatal shear injuries (for example, hands or feet are pinched off). In public places such as shopping malls and supermarkets where escalators are widely used, accidents in which children's hands and feet are pinched or cut off by escalators occur frequently. Therefore, the escalator apron plate force monitoring device 100 of the present application is installed on the apron plate 1 near the comb plate of the lower cabin of the escalator to ensure that the object sandwiched between the apron plate 1 and the step 200 can trigger the monitoring switch 2 to stop the escalator before reaching the lower comb plate of the escalator, thereby preventing serious personal injury accidents.

[0035] It can be understood that the setting of the first groove 13 reduces the local thickness of the apron plate 1 and can reduce the local stiffness, thereby making local deformation easier to form the movable plate area 14. The movable plate area 14 can be composed of the area occupied by the first groove 13 itself, that is, the cross-sectional area of ​​the first groove 13 is the area of ​​the movable plate area 14. In one embodiment, the first groove 13 is arranged in an annular shape to define the movable panel area 14, and the first groove 13 includes two first groove sections 131 and two second groove sections 132 arranged opposite to each other, and the two ends of each first groove section 131 are respectively connected to the two second groove sections 132; the movable panel area 14 is further provided with a second groove 15, and the two ends of the second groove 15 are respectively connected to the two first groove sections 131 to divide the movable panel 14 into two sub-active panel areas 141, each sub-active panel area 141 has an inner end located at the second groove 15 and an outer end located at the second groove section 132, and the apron plate 1 can be deformed at the second groove 15 so that when the first side surface 11 is pressurized by an object, the two sub-active panel areas 141 can be deformed with their outer ends The end is rotated by the rotating shaft, and at least one of the sub-movable plate areas 141 triggers the monitoring switch 2 on its movable stroke, that is, the movable plate area 14 is defined by the first groove 13 arranged in a ring shape, and the width of the first groove 13 can be set to be very small. The cross-sectional area of ​​the first groove 13 is small, which has little effect on the overall rigidity of the apron plate 1 and is easier to process. For example, the apron plate 1 is opened with the first groove 13 and the second groove 15 by electrospark machining, grinding wheel cutting and other processing methods. The setting of the second groove 15 can separate the movable plate area 14 into two sub-movable plate areas 141, thereby realizing the rotation of the two sub-movable plate areas 141. Compared with other types of movements such as translation, the rotation has a better triggering effect, thereby ensuring the monitoring sensitivity and improving the safety of the escalator.

[0036] In one embodiment, the two second slot sections 132 are configured to extend in a direction intersecting the running direction of the step 200, so that the rotation axes of the two sub-movable panel sections 141 intersect with the running direction of the step 200. It can be understood that when an object is clamped in the apron panel 1 and is driven by the running of the step 200, thereby squeezing the apron panel 1, the rotation axes of the two sub-movable panel sections 141 intersect with the running direction of the step 200. This further enhances the pushing effect of the object's squeezing force on the apron panel 1 on the sub-movable panel sections 141, making the sub-movable panel sections 141 easier to move, improving monitoring sensitivity, and further improving the safety of the escalator. In one embodiment, the two second slot sections 132 are configured to extend in a direction perpendicular to the running direction of the step 200. This further enhances the pushing effect of the object's squeezing force on the apron panel 1 on the sub-movable panel sections 141, making the sub-movable panel sections 141 easier to move, further improving monitoring sensitivity, and further improving the safety of the escalator.

[0037] In one embodiment, the first groove 13 and the second groove 15 are both blind grooves. Since the first groove 13 and the second groove 15 are both provided on the second side surface 12 of the apron plate 1, no modification of the first side surface 11 of the apron plate 1 is involved. When the sub-movable plate area 141 moves to cause a slight deformation of a part of the apron plate 1, the first side surface 11 remains smooth, and does not affect the operation of the step 200 or create the risk of objects stagnating on the first side surface 11.

[0038] In one embodiment, the two first slot sections 131 are both provided through the first side surface 11 and the second side surface 12, and the two first slot sections 131 are both used to extend along the running direction of the step 200. In this way, the two sub-movable plate areas 141 are unrestricted at the two first slot sections 131, have a large degree of freedom of movement, can better trigger the monitoring switch 2, thereby improving the monitoring sensitivity and further improving the safety of the escalator. The second slot section 132 is a blind slot and will not produce a blocking step in the running direction of the step 200, thereby preventing the entrapment and damage of trapped objects. It can be understood that setting the width of the two first slot sections 131 to be smaller can prevent the risk of objects entering and being trapped. In addition, the distance between the two first slot sections 131 is slightly larger than the height of the exposed section of the step 200 (such as h in Figure 2), so that the range of action of the movable plate area 14 can correspond to the range of the danger zone A.

[0039] The present application does not limit the specific shape of the second groove 15, as long as it can separate the movable panel area 14. In this embodiment, the second groove 15 is configured to extend in a direction intersecting the running direction of the step 200. When squeezed by an object, the apron plate 1 is easily deformed at the second groove 15, easily triggering the monitoring switch 2, improving monitoring sensitivity, and thereby improving the safety of the escalator. In one embodiment, the second groove 15 is configured to extend in a direction perpendicular to the running direction of the step 200, making it easier to deform at the second groove 15, easier to trigger the monitoring switch 2, further improving monitoring sensitivity, and thereby further improving the safety of the escalator.

[0040] In one embodiment, the apron plate force monitoring device 100 also includes a trigger part 3, and the trigger part 3 is provided in the sub-movable plate area 141, so that during the rotation of the sub-movable plate area 141, it follows the rotation of the sub-movable plate area 141 to trigger the monitoring switch 2. It can be understood that the movable stroke of the sub-movable plate area 141 is limited. If the sub-movable plate area 141 directly acts on the monitoring switch 2, the setting position of the monitoring switch 2 is restricted, which is not conducive to the layout of the monitoring switch 2, and the monitoring sensitivity cannot be guaranteed. Through the setting of the trigger part 3, the monitoring switch 2 can be triggered by the sub-movable plate area 141 through the stroke amplification of the trigger part 3, thereby improving the monitoring sensitivity and facilitating the layout of the monitoring switch 2.

[0041] In one embodiment, the apron panel 1 includes the movable panel section 14 and a fixed panel section 16 disposed peripherally thereto. The monitoring switch 2 is disposed on the second side surface 12 of the fixed panel section 16. The triggering portion 3 includes a fixed mounting rod 31 disposed on the second side surface 12 of the sub-movable panel section 141 and a switch triggering rod 32 extending laterally from the fixed mounting rod 31. The switch triggering rod 32 is disposed in correspondence with the monitoring switch 2 to trigger the monitoring switch 2 when the sub-movable panel section 141 rotates. Thus, the monitoring switch 2 is disposed on the fixed panel section 16, providing a stable and reliable installation. Specifically, a switch fixing plate 5 is fixedly disposed on the fixed panel section 16, to which the monitoring switch 2 is secured by bolts 6. The fixed mounting rod 31 and the switch triggering rod 32 together constitute a triggering bracket for the monitoring switch 2. The fixed mounting rod 31 and the switch triggering rod 32 are disposed in a T-shape along the length of the apron panel 1. This allows the monitoring switch 2 to be positioned farther from the sub-movable panel section 141, preventing interference. Specifically, as shown in Figure 4, when a human limb or foreign object is caught in the gap between the step 200 and the apron plate 1 and is about to be brought to the shear gap formed by the step 200 and the comb plate, due to the elastic characteristics of the clamped object and the escalator system, when passing through the movable plate area 14 of the apron plate force monitoring device 100, the movable plate area 14 is pushed outward (the sub-movable plate area 141 rotates slightly away from the step 200), and the monitoring switch 2 is triggered by the switch trigger rod 32 to stop the escalator operation and prevent the occurrence of escalator shearing accidents.

[0042] In one embodiment, the apron plate force monitoring device 100 includes an elastic reset device 4, which includes an elastic member 41 and an elastic adjustment device 42. The elastic member 41 is used to provide an elastic reset force for the sub-active panel area 141; the elastic adjustment device 42 is used to adjust the initial deformation of the elastic member 41 to change the activity sensitivity of the sub-active panel area 141. In this way, when the sub-active panel area 141 moves away from the first side 11 to trigger the monitoring switch 2, the escalator stops, and the danger is eliminated, it is ensured that the sub-active panel area 141 can be moved and reset toward the first side 11 to continue subsequent force monitoring, and the elastic adjustment device 42 is used to adjust the initial deformation of the elastic member 41 to change the activity sensitivity of the sub-active panel area 141. If the elastic force of the elastic member 41 is too small, the activity sensitivity of the sub-active panel area 141 is too high, and it is easy to be accidentally touched. If the elastic force of the elastic member 41 is too large, the activity sensitivity of the sub-active panel area 141 is low, and the activity of the sub-active panel area 141 is not timely, which is not conducive to timely triggering protection. In order to ensure that the activity sensitivity of the sub-active panel area 141 is controllable, an elastic adjustment device 42 is provided to adjust the initial deformation of the elastic member 41 through the elastic adjustment device 42 to control the activity sensitivity of the sub-active panel area 141 within an appropriate range to prevent the occurrence of the above-mentioned adverse situation.

[0043] In one embodiment, the elastic member 41 includes a compression spring 411 provided on the side of the switch trigger rod 32 away from the apron plate; the elastic adjustment device 42 includes a pressing member 421 for pressing the compression spring 411, and the pressing member 421 is adjustable in the axial direction of the compression spring 411 to adjust the initial compression amount of the compression spring 411. In this way, the apron plate force monitoring device 100 triggers the monitoring switch 2 through the movement of the elastic adjustment device 42, the trigger part 3 and the sub-active plate area 141, so that the action of the sub-active plate area 141 is irrelevant to the stiffness of the apron plate 1 itself, but is only related to the elastic force adjusted by the elastic adjustment device 42 itself, thereby effectively solving the contradiction between the action sensitivity of the monitoring device and the stiffness of the apron plate 1. Specifically, the compression spring 411 includes an annular spring, the pressing part 421 includes a first nut 4211, the switch trigger rod 32 is provided with a first through hole 321, a first screw 7 is passed through the first through hole 321, one end of the first screw 7 is fixedly connected to the fixed plate area 16, and a gasket 8, the compression spring 411, and the first nut 4211 are sequentially sleeved on the first screw 7. The pressure of the compression spring 411 is adjusted by relying on the first nut 4211 to adjust the action pressure of the monitoring switch 2.

[0044] In one embodiment, the apron plate force monitoring device 100 includes a limiting device 9, which includes a fixed connecting rod 91 provided on the second side 12 of the fixed plate area 16, and a limiting member 92 laterally connected to the fixed connecting rod 91, and the limiting member 92 is located on the side of the switch trigger rod 32 away from the apron plate 1, so as to limit the movable stroke of the switch trigger rod 32 in the movable direction away from the apron plate 1, avoid excessive movement of the switch trigger rod 32, thereby avoiding excessive movement of the sub-active plate area 141, controlling the deformation of the apron plate 1, ensuring the overall stiffness of the apron plate 1, and also avoiding excessive movement of the switch trigger rod 32 to cause damage to the monitoring switch 2, thereby improving the safety and reliability of the apron plate force monitoring device 100. Specifically, the switch trigger rod 32 is further provided with a second penetration hole 322 , the fixed connecting rod 91 is penetrated in the second penetration hole 322 , the fixed connecting rod 91 includes a second screw 911 , and the limiting member 92 includes a second nut 921 sleeved on the second screw 911 .

[0045] The present application also provides an escalator, which includes the apron plate force monitoring device 100 as described above. The escalator adopts all the technical solutions of all the above embodiments, and therefore has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0046] The above are merely optional embodiments of the present application and do not limit the patent scope of the present application. All equivalent structural transformations made based on the contents of the present application specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present application.

Claims

1. An apron panel force monitoring device for an escalator, wherein, The apron board force monitoring device includes: An apron board, which is used to be arranged on one side end of the step of an escalator. The apron board has opposite first and second side surfaces. The first side surface is used to be arranged opposite to the step, and the second side surface is used to be arranged away from the step. A first groove is formed on the second side surface. The apron board can deform at the first groove to form a movable board area, so that when the first side surface is squeezed by an object, the movable board area can move away from the first side surface; and, A monitoring switch, which is correspondingly arranged with the movable board area and is triggered by the movable board area when the movable board area moves.

2. The apron panel force monitoring device according to claim 1, wherein, The first groove is arranged in a ring shape to define the movable board area. The first groove includes two relatively arranged first groove segments and two relatively arranged second groove segments. The two ends of each first groove segment are respectively communicated with the two second groove segments; The movable board area is further provided with a second groove. The two ends of the second groove are respectively communicated with the two first groove segments to divide the movable board area into two sub-movable board areas. Each sub-movable board area has an inner end located at the second groove and an outer end located at the second groove segment. The apron board can deform at the second groove, so that when the first side surface is pressurized by an object, the two sub-movable board areas can rotate with their outer ends as rotation axes, and at least one of the sub-movable board areas triggers the monitoring switch during its movement stroke.

3. The apron panel force monitoring device according to claim 2, wherein, The two second groove segments are used to extend in a direction intersecting with the running direction of the step, so that the rotation axes of the two sub-movable board areas intersect with the running direction of the step.

4. The apron panel force monitoring device according to claim 3, wherein, Both of the two first groove segments penetrate through the first side surface and the second side surface, and both of the two first groove segments are used to extend along the running direction of the step.

5. The apron panel force monitoring device according to claim 2, wherein, The apron board force monitoring device further includes a triggering part, which is arranged on one of the sub-movable board areas to rotate following the sub-movable board area during the rotation process of the sub-movable board area to trigger the monitoring switch.

6. The apron panel force monitoring device according to claim 5, wherein, The apron board includes the movable board area and a fixed board area arranged outside the movable board area. The monitoring switch is arranged on the second side surface of the fixed board area; The triggering part includes a fixed mounting rod arranged on the second side surface of the sub-movable board area and a switch triggering rod extending laterally from the fixed mounting rod. The switch triggering rod is correspondingly arranged with the monitoring switch to trigger the monitoring switch when the sub-movable board area rotates.

7. The apron panel force monitoring device according to claim 6, wherein, The apron board force monitoring device includes an elastic reset device, and the elastic reset device includes: An elastic member, which is used to provide an elastic reset force for the sub-movable board area; and, An elastic adjusting device, which is used to adjust the initial deformation amount of the elastic member to change the movement sensitivity of the sub-movable board area.

8. The apron panel force monitoring device according to claim 7, wherein, The elastic member includes a compression spring arranged on the side of the switch triggering rod away from the apron board; The elastic adjusting device includes a pressing member pressing the compression spring. The pressing member is adjustable in the axial direction of the compression spring to adjust the initial compression amount of the compression spring.

9. The apron panel force monitoring device according to claim 6, wherein, The apron board force monitoring device includes a limiting device, and the limiting device includes a fixed connecting rod provided on the second side surface of the fixed plate area and a limiting member laterally connected to the fixed connecting rod, and the limiting member is located on the side of the switch trigger rod away from the apron board, so as to limit the movement stroke of the switch trigger rod in the movement direction away from the apron board.

10. An escalator, wherein, The escalator includes the apron board force monitoring device according to any one of claims 1 to 9.

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