Apron plate force monitoring device and escalator

Abstract

The present invention discloses an apron plate force monitoring device and an escalator, the apron plate force monitoring device comprises an apron plate and a monitoring switch, the apron plate is used to be arranged at one side end of the step of the escalator, the apron plate has a first side surface and a second side surface opposite to each other, the first side surface is used to be arranged relative to the step, the second side surface is used to be arranged away from the step, a first groove is provided on the second side surface, 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 arranged corresponding to the movable plate area, and is triggered by the movable plate area when the movable plate area is activated. The technical solution provided by the present invention significantly improves the monitoring sensitivity of the apron plate when it is under force while ensuring the overall rigidity of the apron plate, thereby improving the safety of the escalator.

Description

Technical Field

[0001] The invention relates to the technical field of escalators, in particular to an apron plate force monitoring device and an escalator. Background Art

[0002] Statistics show that accidents of personal injury caused by people (usually children) being caught by the apron plates of escalators occur frequently. Accidents in which people are caught by the apron plates while riding on escalators usually occur when the escalator is going down. The process of such injury accidents usually includes the following two stages. The first stage is that the flexible object is caught in the gap between the apron plate and the step; the second stage is that the caught flexible object is brought to the intersection of the step and the comb plate, causing shearing, which can cause serious injury accidents.

[0003] 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 it is that the monitoring switch used to monitor objects being pinched in the gap between apron plates and steps will operate. Summary of the invention

[0004] The main purpose of the present invention 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.

[0005] To achieve the above-mentioned purpose, the present invention proposes an apron plate force monitoring device for an escalator, the apron plate force monitoring device comprising 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, 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.

[0006] Optionally, 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-active plate areas, each sub-active 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-active plate areas can rotate with their outer ends as the rotating axis, and at least one of the sub-active plate areas triggers the monitoring switch on its active stroke.

[0007] Optionally, the two second slot sections are used to extend along a direction intersecting with a running direction of the step, so that the rotation axes of the two sub-movable panel areas are used to intersect with the running direction of the step.

[0008] Optionally, the two first slot sections are both arranged to penetrate 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.

[0009] Optionally, the apron plate force monitoring device further comprises a triggering portion, wherein the triggering portion is disposed 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.

[0010] Optionally, the apron plate includes the movable panel area and a fixed panel area arranged on the periphery of the movable panel area, and the monitoring switch is arranged on the second side surface of the fixed panel area; the trigger part includes a fixed mounting rod arranged on the second side surface of the sub-movable panel area, and a switch trigger rod formed by extending laterally from the fixed mounting rod, and the switch trigger rod is arranged corresponding to the monitoring switch to trigger the monitoring switch when the sub-movable panel area rotates.

[0011] Optionally, the apron plate force monitoring device includes an elastic reset device, which includes an elastic member and an elastic adjustment device, wherein the elastic member is used to provide an elastic reset force for the sub-active panel area; and 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.

[0012] Optionally, the elastic member includes a compression spring arranged on a 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.

[0013] Optionally, the apron plate force monitoring device includes a limit device, which includes a fixed connecting rod arranged on the second side of the fixed plate area, and a limit member laterally connected to the fixed connecting rod, and the limit member is located on the side of the switch trigger rod away from the apron plate, so as to limit the movable travel of the switch trigger rod in the movable direction away from the apron plate.

[0014] The present invention also provides an escalator, comprising the apron plate force monitoring device as described above.

[0015] In the technical solution of the present invention, 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 steps of the escalator, the apron plate has a first side surface and a second side surface opposite to each other, the first side surface is used to be set relative to the steps, and the second side surface is used to be set away from the steps, 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, and a first groove is opened on the second side of the apron plate to change the local stiffness of the apron plate, 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 moved 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

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the dangerous area when the escalator is in operation;

[0018] Figure 2 A schematic diagram of the front structure of an embodiment of the apron plate force monitoring device provided by the present invention;

[0019] Figure 3 for Figure 2The first state of the XX cross-sectional view in FIG. 1 (the movable panel area is in a normal state);

[0020] Figure 4 for Figure 2 The second state of the XX cross-sectional diagram in the figure (the movable plate area is in a stressed state).

[0021] Description of Figure Numbers:

[0022] Label name Label name 100 Apron plate force monitoring device 4 Elastic return device 1 Apron board 41 Elastic parts 11 First side 411 Compression spring 12 Second side 42 Elastic adjustment device 13 First groove 421 Pressed parts 131 First slot section 4211 First nut 132 Second slot section 5 Switch fixing plate 14 Activity board area 6 bolt 141 Sub-activity board area 7 First screw 15 Second groove 8 Gasket 16 Fixed plate area A Dangerous areas 2 Monitoring switch a Step running direction 3 Trigger h Height of exposed section of step operation 31 Fixed mounting rod F Sub-active plate area stress 32 Switch trigger lever 200 step 321 The first hole 322 The second hole 9 Limit device 92 Limiting parts 91 Fixed connecting rod 921 Second nut 911 Second screw

[0023] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0026] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is 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 the present invention.

[0027] Statistics show that accidents of personal injury caused by people (usually children) being caught by the apron plates of escalators occur frequently. Accidents in which people are caught by the apron plates while riding on escalators usually occur when the escalator is going down. The process of such injury accidents usually includes the following two stages. The first stage is that the flexible object is caught in the gap between the apron plate and the step; the second stage is that the caught flexible object is brought to the intersection of the step and the comb plate, causing shearing, which can cause serious injury accidents.

[0028] 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 it is that the monitoring switch used to monitor objects being pinched in the gap between apron plates and steps will operate.

[0029] In view of this, the present invention provides an apron plate force monitoring device and an escalator, which aim to ensure the overall rigidity of the apron plate while significantly improving the monitoring sensitivity of the apron plate when it is subjected to force, thereby improving the safety of the escalator. Figure 1 This is a diagram of the dangerous area A when the escalator is running. Figures 2 to 4 An embodiment of the apron plate force monitoring device provided by the present invention.

[0030] In an embodiment of the present invention, 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.

[0031] In the technical solution of the present invention, 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 arranged at one side end of a step 200 of the escalator. The apron plate 1 has a first side surface 11 and a second side surface 12 opposite to each other. The first side surface 11 is used to be arranged relative to the step 200, and the second side surface 12 is used to be arranged 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 A movable panel area 14 is formed so that when the first side surface 11 is squeezed by an object, the movable panel area 14 can move away from the first side surface 11; the monitoring switch 2 is arranged corresponding to the movable panel area 14, and is triggered by the movable panel area 14 when the movable panel area 14 moves, that is, the apron plate 1 is modified, and the first groove 13 is opened on the second side surface 12 of the apron plate 1 to change the local stiffness of the apron plate 1, so that the apron plate 1 can be deformed at the first groove 13, thereby forming the movable panel area 14, when an object is clamped into the apron plate 1 (i.e., entering Figure 1 In the dangerous area A in the figure, a is the running direction of the step 200), the movable plate area 14 can be movable to trigger the monitoring switch 2, which solves the contradiction between the stiffness of the apron plate 1 and the monitoring sensitivity of the apron plate 1 under stress, and can ensure the overall stiffness of the apron plate 1 while significantly improving the monitoring sensitivity of the apron plate 1 under stress, thereby improving the safety of the escalator.

[0032] 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 injury. This is a more preferred embodiment. 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 alarm bell to operate, sounds an alarm, and reminds the staff to emergency brake the escalator in time to avoid personal injury. Furthermore, the function of the monitoring switch 2 can also be a combination of the above two. It can control the escalator to stop running, and at the same time, it can also make the alarm bell ring and the warning light flash to remind the staff to rescue the trapped people in time to 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.

[0033] 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, statistical data show that children are often caught by the apron plate 1 when riding the escalator, and then accidents occur. The reason is that the fingers and shoes of children are relatively small and soft, and they can easily extend into the gap between the apron plate 1 and the step 200. The clamped object is brought to the intersection of the step 200 and the comb plate of the escalator 1 by the escalator in continuous motion, and the two are sheared. 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 invention is preferably 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.

[0034] 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 panel area 14. The movable panel 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 panel area 14. In this 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 also 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 shaft, and at least one of the sub-active plate areas 141 triggers the monitoring switch 2 during its active stroke, that is, the active 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 processed by electrospark machining, grinding wheel cutting and other processing methods to open the first groove 13 and the second groove 15. The setting of the second groove 15 can separate the active plate area 14 into two sub-active plate areas 141, thereby realizing the rotation of the two sub-active 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 thus improving the safety of the escalator.

[0035] In this embodiment, the two second slot sections 132 are used to extend in a direction intersecting with the running direction of the step 200, so that the rotation axes of the two sub-movable plate areas 141 are used to intersect with the running direction of the step 200. It can be understood that an object is clamped in the apron plate 1 and driven by the running of the step 200, thereby squeezing the apron plate 1. The rotation axes of the two sub-movable plate areas 141 intersect with the running direction of the step 200, which can make the squeezing force of the object on the apron plate 1 have a better pushing effect on the sub-movable plate area 141, and the sub-movable plate area 141 is easy to move, thereby improving the monitoring sensitivity, thereby improving the safety of the escalator. Preferably, the two second slot sections 132 are used to extend in a direction perpendicular to the running direction of the step 200, so as to further improve the pushing effect of the squeezing force of the object on the apron plate 1 on the sub-movable plate area 141, and the sub-movable plate area 141 is easier to move, thereby further improving the monitoring sensitivity, thereby further improving the safety of the escalator.

[0036] In one embodiment, both the first groove 13 and the second groove 15 are blind grooves. Since both the first groove 13 and the second groove 15 are arranged on the second side 12 of the apron plate 1, there is no need to modify the first side 11 of the apron plate 1. When the sub-movable plate area 141 moves to cause a slight deformation of the part of the apron plate 1, the first side 11 remains smooth, does not affect the operation of the step 200, and does not create the risk of objects getting stuck on the first side 11.

[0037] In this embodiment, the two first slot sections 131 are both arranged to pass through the first side surface 11 and the second side surface 12, and the two first slot sections 131 are used to extend along the running direction of the step 200, so that the two sub-active plate areas 141 are unrestricted at the two first slot sections 131, have a large degree of freedom of movement, and 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 avoiding the retention and damage of the clamped objects. It can be understood that setting the width of the two first slot sections 131 to be smaller can avoid the risk of objects entering and being retained. In addition, the distance between the two first slot sections 131 is slightly larger than the height of the exposed interval where the step 200 runs (such as Figure 2 h) in the figure makes the action range of the movable panel area 14 correspond to the range of the dangerous area A.

[0038] The present application does not limit the specific shape of the second groove 15, and it is sufficient to separate the movable panel area 14. In this embodiment, the second groove 15 is used to extend in a direction intersecting with the running direction of the step 200. The apron plate 1 is easily deformed at the second groove 15 under the pressure of the clamped object, and is easy to trigger the monitoring switch 2, thereby improving the monitoring sensitivity and further improving the safety of the escalator. Preferably, the second groove 15 is used to extend in a direction perpendicular to the running direction of the step 200, and is more likely to be deformed at the second groove 15, and is more likely to trigger the monitoring switch 2, thereby further improving the monitoring sensitivity and further improving the safety of the escalator.

[0039] In this embodiment, the apron plate force monitoring device 100 also includes a trigger part 3, and the trigger part 3 is arranged on the sub-active panel area 141, so that during the rotation of the sub-active panel area 141, it follows the rotation of the sub-active panel area 141 to trigger the monitoring switch 2. It can be understood that the activity stroke of the sub-active panel area 141 is limited. If the sub-active panel 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-active panel area 141 via the stroke amplification of the trigger part 3, thereby improving the monitoring sensitivity and facilitating the layout of the monitoring switch 2.

[0040] In this embodiment, the apron plate 1 includes the movable plate area 14 and the fixed plate area 16 arranged on the periphery of the movable plate area, and the monitoring switch 2 is arranged on the second side surface 12 of the fixed plate area 16; the trigger part 3 includes a fixed installation rod 31 arranged on the second side surface 12 of the sub-movable plate area 141, and a switch trigger rod 32 formed by extending laterally from the fixed installation rod 31, and the switch trigger rod 32 is arranged corresponding to the monitoring switch 2 to trigger the monitoring switch 2 when the sub-movable plate area 141 rotates. In this way, the monitoring switch 2 is arranged in the fixed plate area 16, and the installation is stable and reliable. Specifically, the fixed plate area 16 is fixed with a switch fixing plate 5, and the monitoring switch 2 is fixed to the switch fixing plate 5 by bolts 6. The fixed installation rod 31 and the switch trigger rod 32 together constitute a trigger bracket of the monitoring switch 2, and the two are arranged in a "T" shape along the length direction of the apron plate 1. In this way, the distance between the monitoring switch 2 and the sub-movable plate area 141 is relatively far, and interference is not easy to occur. Specifically, as shown in the attached Figure 4As shown, 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 shearing opening formed by the step 200 and the comb plate, due to the elastic characteristics of the caught 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.

[0041] In this embodiment, the apron plate force monitoring device 100 includes an elastic reset device 4, and the elastic reset device 4 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, so that 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.

[0042] In this embodiment, the elastic member 41 includes a compression spring 411 arranged 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, through the activities of the elastic adjustment device 42, the trigger part 3 and the sub-active plate area 141, makes the action of the sub-active plate area 141 trigger the monitoring switch 2 has nothing to do with the stiffness of the apron plate 1 itself, but is only related to the elastic force adjusted by the elastic adjustment device 42 itself, which effectively solves 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 piece 421 includes a first nut 4211, the switch trigger rod 32 is provided with a first penetration hole 321, a first screw rod 7 is penetrated through the first penetration hole 321, one end of the first screw rod 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 rod 7, and 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.

[0043] In this embodiment, the apron plate force monitoring device 100 includes a limiting device 9, which includes a fixed connecting rod 91 arranged 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 in addition, it can also avoid the damage of the monitoring switch 2 caused by excessive movement of the switch trigger rod 32, 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 rod 911 , and the limiting member 92 includes a second nut 921 sleeved on the second screw rod 911 .

[0044] The present invention 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.

[0045] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A skirt plate force monitoring device for an escalator, characterized in that: The apron plate force monitoring device comprises: An apron plate is arranged at one side end of a step of an escalator, the apron plate having a first side surface and a second side surface opposite to each other, the first side surface is arranged opposite to the step, the second side surface is arranged away from the step, a first groove is formed on the second side surface, 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; and, A monitoring switch, arranged corresponding to the movable panel area, and triggered by the movable panel area when the movable panel area is active; The first groove is arranged in an annular 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 both ends of each first groove section are respectively connected to the two second groove sections; The movable panel area is further provided with a second groove, and the two ends of the second groove are respectively connected with the two first groove sections to divide the movable panel area into two sub-movable panel areas, each sub-movable panel 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 surface is pressurized by an object, the two sub-movable panel areas can rotate with their outer ends as the rotation axis, and at least one of the sub-movable panel areas triggers the monitoring switch during its movable stroke; The two second groove sections are used to extend in a direction intersecting with the running direction of the steps, so that the rotation axes of the two sub-movable plate areas are used to intersect with the running direction of the steps; The two first slot sections are both arranged to penetrate 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; The second groove section and the second groove are both blind grooves.

2. The apron plate force monitoring device according to claim 1, characterized in that: The apron plate force monitoring device further comprises a triggering part, which is arranged 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.

3. The apron plate force monitoring device according to claim 2, characterized in that: The apron plate includes the movable plate area and a fixed plate area arranged at 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 part includes a fixed mounting rod arranged on the second side of the sub-active panel area, and a switch triggering rod extending laterally from the fixed mounting rod. The switch triggering rod is arranged corresponding to the monitoring switch to trigger the monitoring switch when the sub-active panel area rotates.

4. The apron plate force monitoring device according to claim 3, characterized in that: The apron plate force monitoring device includes an elastic reset device, and the elastic reset device includes: an elastic member, used to provide an elastic restoring force to the sub-active panel area; and The elasticity adjusting device is used to adjust the initial deformation amount of the elastic member to change the activity sensitivity of the sub-active panel area.

5. The apron plate force monitoring device according to claim 4, characterized in that: The elastic member comprises a compression spring disposed on a side of the switch trigger rod facing away from the apron plate; The elasticity adjustment device includes a pressing piece for pressing the compression spring, and the pressing piece is adjustable in the axial direction of the compression spring to adjust the initial compression amount of the compression spring.

6. The apron plate force monitoring device according to claim 3, characterized in that: The apron plate force monitoring device includes a limit device, which includes a fixed connecting rod arranged on the second side of the fixed plate area, and a limit piece laterally connected to the fixed connecting rod, and the limit piece is located on the side of the switch trigger rod away from the apron plate, so as to limit the movable travel of the switch trigger rod in the movable direction away from the apron plate.

7. An escalator, characterized in that: The escalator comprises the apron plate force monitoring device according to any one of claims 1 to 6.

Images