Anti-pinch protection device and escalator

Abstract

The present application discloses an anti-pinch protection device and an escalator. The anti-pinch protection device comprises lubricating assemblies. Each lubricating assembly comprises a liquid storage box, a lubricating member, and a liquid collecting tank; the liquid storage box provides a lubricating liquid; the lubricating member is communicated with the liquid storage box, and the lubricating member is used for brushing the lubricating liquid on a corresponding skirt panel of an escalator so as to reduce the friction coefficient of the surface of the skirt panel; and the liquid collecting tank is arranged below the skirt panel so as to collect the lubricating liquid flowing down from the surface of the skirt panel.

Description

Anti-pinch protection device and escalator

[0001] This application claims priority to Chinese patent application No. 202311729777.7, 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 anti-pinch protection device and an escalator. Background Art

[0003] Generally speaking, while a smooth apron surface can effectively reduce friction when hard objects come into contact with it—the smoother the apron surface, the lower the coefficient of friction between it and the contacting object—a smooth apron surface cannot effectively reduce friction when flexible objects come into contact with it, especially those popular children's Crocs. Therefore, despite the smooth surface of the apron, when a flexible object with a certain positive pressure comes into contact with the apron during escalator operation, it will still generate significant friction, causing the flexible object to quickly stick to the step kick plate and eventually become trapped in the gap between the apron and the step, resulting in personal injury and equipment damage. Technical issues

[0004] The main purpose of this application is to provide an anti-pinch protection device and an escalator, which are intended to prevent objects from being pinched in the gap between the apron plate and the steps, thereby improving the safety of the escalator. Technical Solutions

[0005] To achieve the above-mentioned purpose, the present application proposes an anti-pinch protection device for an escalator, wherein the anti-pinch protection device includes a lubrication assembly, which includes a liquid storage tank, a lubricating part and a liquid collecting tank. The liquid storage tank is used to provide lubricating fluid; the lubricating part is periodically connected to the liquid storage tank to apply the lubricating fluid to the apron plate of the escalator to reduce the friction coefficient of the apron plate surface; the liquid collecting tank is used to be arranged under the apron plate to collect the lubricating fluid flowing down from the apron plate surface.

[0006] In one embodiment, the lubricating element is installed on a side of a step of an escalator to move along with the step, thereby applying lubricating fluid to the apron plate.

[0007] In one embodiment, the liquid collecting trough has a first side wall and a second side wall relative to each other, wherein the first side wall is used to correspond to the step setting of the escalator, and the second side wall is used to be set away from the step setting of the escalator, and the second side wall is connected to a guide slope, which is upward and used to tilt toward the direction of the step to extend to the bottom of the apron plate.

[0008] In one embodiment, the liquid storage tank is arranged in a lower turning station of the escalator, and the liquid storage tank is communicated with the lower end of the liquid collecting tank.

[0009] In one embodiment, the lubrication assembly further includes a liquid guiding structure, one end of which extends into the liquid storage tank, and the other end of which extends at least to the movable path of the lubricating component. The liquid guiding structure is used to transport the lubricating liquid in the liquid storage tank to the lubricating component through capillary action when in contact with the lubricating component.

[0010] In one embodiment, at least one of the liquid-guiding structure and the lubricating component is elastically arranged in the extrusion direction thereof.

[0011] In one embodiment, the lubricating element includes a liquid brush made of elastic material.

[0012] In one embodiment, the lubrication assembly further includes a liquid level alarm disposed in the liquid storage tank.

[0013] In one embodiment, the lubrication assembly includes two sets, and the two sets of lubrication assemblies are respectively provided corresponding to the two apron plates of the escalator.

[0014] The present application also provides an escalator, which includes the anti-pinch protection device as described in any one of the above items. Beneficial effects

[0015] In the technical solution of the present application, the anti-pinch protection device includes a lubrication component, which includes a liquid storage tank, a lubricating component and a liquid collecting tank. The liquid storage tank is used to provide lubricating liquid; the lubricating component is connected to the liquid storage tank to apply the lubricating liquid to the apron plate of the escalator to reduce the friction coefficient of the apron plate surface; the liquid collecting tank is used to be arranged below the apron plate to collect the lubricating liquid flowing down from the apron plate surface. In this way, the liquid storage tank provides lubricating liquid, and the lubricating component applies the lubricating liquid to the apron plate of the escalator to reduce the friction coefficient of the apron plate surface, reduce the friction between the object and the apron plate, prevent the object from being clamped in the gap between the apron plate and the steps, and improve the safety of the escalator. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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.

[0017] FIG1 is a schematic structural diagram of an embodiment of an escalator provided by the present application;

[0018] FIG2 is a schematic cross-sectional view of FIG1 from AA;

[0019] FIG3 is a schematic structural diagram of another embodiment of the escalator provided in the present application.

[0020] Description of Figure Numbers:

[0021] Reference numerals: Reference numerals: 100 Anti-pinch protection device 141 Wick 1 Lubrication assembly 142 Wick holder 11 Liquid storage tank 143 Connecting hose 12 Lubricating component 15 Liquid level alarm 121 Liquid brush 200 Step 13 Liquid collecting tank 300 Apron plate 131 First side wall a Step sprocket track 132 Second side wall b Lubricating liquid 133 Guide slope 16 Connecting pipe 14 Liquid guide structure C Active path of lubricating component

[0022] 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

[0023] 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.

[0024] 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 components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0025] 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 schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. 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 this field to implement it. 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.

[0026] Generally speaking, while a smooth apron surface can effectively reduce friction when hard objects come into contact with it—the smoother the apron surface, the lower the coefficient of friction between it and the contacting object—a smooth apron surface cannot effectively reduce friction when flexible objects come into contact with it, especially those popular children's Crocs. Therefore, despite the smooth surface of the apron, when a flexible object with a certain positive pressure comes into contact with the apron during escalator operation, it will still generate significant friction, causing the flexible object to quickly stick to the step kick plate and eventually become trapped in the gap between the apron and the step, resulting in personal injury and equipment damage.

[0027] In view of this, the present application provides an anti-pinch protection device and an escalator, which are intended to prevent objects from being caught in the gap between the apron plate and the steps, thereby improving the safety of the escalator. Figures 1 and 2 show an embodiment of the escalator provided by the present application.

[0028] In the embodiment of the present application, please refer to Figures 1 and 2. In order to clearly illustrate the scheme, the figures also show the step sprocket trajectory a and the lubricating fluid b. The anti-pinch protection device 100 is used for an escalator. The anti-pinch protection device 100 includes a lubrication component 1, and the lubrication component 1 includes a liquid storage tank 11, a lubricating component 12 and a liquid collecting tank 13. The liquid storage tank 11 is used to provide lubricating fluid b; the lubricating component 12 is connected to the liquid storage tank 11 to apply the lubricating fluid b to the apron plate 300 of the escalator to reduce the friction coefficient of the surface of the apron plate 300; the liquid collecting tank 13 is used to be arranged below the apron plate 300 to collect the lubricating fluid b flowing from the surface of the apron plate 300.

[0029] In the technical solution of the present application, the anti-pinch protection device 100 includes a lubrication component 1, which includes a liquid storage tank 11, a lubricating component 12 and a liquid collecting tank 13. The liquid storage tank 11 is used to provide lubricating liquid b; the lubricating component 12 is connected to the liquid storage tank 11, and is used to brush the lubricating liquid b onto the apron plate 300 of the escalator to reduce the friction coefficient of the surface of the apron plate 300; the liquid collecting tank 13 is used to be arranged below the apron plate 300 to collect the lubricating liquid b flowing down from the surface of the apron plate 300. In this way, the liquid storage tank 11 provides lubricating liquid b, and the lubricating component 12 brushes the lubricating liquid b onto the apron plate 300 of the escalator, reducing the friction coefficient of the surface of the apron plate 300, reducing the friction between the object and the apron plate 300, preventing the object from being clamped in the gap between the apron plate 300 and the step 200, and improving the safety of the escalator.

[0030] As will be appreciated, the sump 13 is positioned below the apron panel 300 to collect the lubricating liquid B that flows down from the apron panel 300, thereby preventing the lubricating liquid B from flowing down and contaminating the environment, thereby enhancing environmental protection. In specific implementations, a cleaning liquid of a certain concentration can be used as the lubricating liquid B, allowing it to adhere to the apron panel 300 and reduce the friction coefficient of the apron panel 300. Furthermore, when in contact with passengers, the lubricating liquid B is safe and harmless, making it more acceptable to passengers.

[0031] In one embodiment, the lubricating member 12 is installed on the side of the step 200 of the escalator so as to move with the step 200, thereby applying the lubricating liquid b to the apron plate 300. In this way, the lubricating liquid b can be applied to the apron plate 300 by virtue of the movement of the step itself, without the need for an additional driving device to drive the movement of the lubricating member 12. The structure is simple and reliable, reducing the production cost of the device and the workload of use and maintenance.

[0032] In one embodiment, the liquid collecting tank 13 has a first side wall 131 and a second side wall 132 relative to each other, wherein the first side wall 131 is set to correspond to the step 200 of the escalator, and the second side wall 132 is set to face away from the step 200 of the escalator. The second side wall 132 is connected with a guide slope 133, and the guide slope 133 is upward and inclined toward the direction of the step 200 to extend to the bottom of the apron plate 300. In this way, the apron plate 300 and the liquid collecting tank 13 can be smoothly connected, so that the lubricating liquid b on the apron plate 300 can be more easily introduced into the liquid collecting tank 13, thereby avoiding splashing of the lubricating liquid b, and achieving a better liquid collection effect and being more environmentally friendly.

[0033] In one embodiment, the liquid storage tank 11 is arranged in the lower turning station of the escalator, and the liquid storage tank 11 is connected to the lower end of the liquid collecting tank 13. In this way, the lubricating fluid b collected in the liquid collecting tank 13 can slide into the liquid storage tank 11 due to gravity, thereby realizing the recycling and reuse of the lubricating fluid b, reducing the use of the lubricating fluid b, and reducing the cost of using the device.

[0034] The present application does not limit the specific manner in which the lubricating component 12 is connected to the liquid storage tank 11, as long as the lubricating liquid b in the liquid storage tank 11 can be provided to the lubricating component 12. A pipeline may be connected between the lubricating component 12 and the liquid storage tank 11, and a power device may be provided to pump the lubricating liquid b in the liquid storage tank 11 to the lubricating component 12 via the pipeline. In one embodiment, the lubrication assembly 1 further includes a liquid guiding structure 14, one end of which extends into the liquid storage tank 11, and the other end of which extends at least to the active path C of the lubricating component 12. The liquid guiding structure 14 is used to transport the lubricating liquid b in the liquid storage tank 11 to the lubricating component 12 by capillary action when in contact with the lubricating component 12. The liquid guiding structure 14 transports the lubricating liquid b in the liquid storage tank 11 to the lubricating component 12 by capillary action, thereby achieving circulation of the lubricating liquid b. There is no need to set up an additional power device to pump the lubricating liquid b, nor is there a need to set up a pipeline between the lubricating component 12 and the liquid storage tank 11. The structure is simple and reliable, reducing the production and use costs of the device and the workload of use and maintenance. It is understandable that the liquid guiding structure 14 can be any structure that can form a capillary action, such as multiple strands of plant fibers, multiple capillaries, sponge strips, etc.

[0035] In order to avoid hard friction when the lubricating component 12 contacts the liquid-guiding structure 14, at least one of the liquid-guiding structure 14 and the lubricating component 12 is elastically set in the extrusion direction of the two. In this way, when the lubricating component 12 moves with the step 200 to contact the liquid-guiding structure 14, the two can generate a certain elastic avoidance in their extrusion direction, avoiding hard extrusion and hard friction, avoiding damage to the lubricating component 12 and the liquid-guiding structure 14, and improving the service life of both.

[0036] The present application does not limit the specific implementation method of elastically setting at least one of the liquid-guiding structure 14 and the lubricating component 12 in the extrusion direction of the two. The liquid-guiding structure 14 or the lubricating component 12 can be elastically and telescopically installed to achieve its elastic setting. In one embodiment, the lubricating component 12 includes a liquid brush 121 made of an elastic material. In this way, when the liquid brush 121 contacts the liquid-guiding structure 14, the liquid brush 121 itself undergoes elastic deformation, maintaining contact with the liquid-guiding structure 14 to obtain replenishment of the lubricating liquid b. At the same time, hard extrusion and hard friction with the liquid-guiding structure 14 are avoided, and damage to the lubricating component 12 and the liquid-guiding structure 14 is avoided, thereby increasing the service life of both. In addition, the liquid brush 121 can be directly installed on the side of the step 200, without the need for elastic and telescopic installation, and has a simple and reliable structure.

[0037] In one embodiment, the lubrication assembly 1 also includes a liquid level alarm 15 arranged in the liquid storage tank 11. It can be understood that the liquid level alarm 15 is set at an appropriate position and height of the liquid storage tank 11, and an alarm is sounded when the loss of lubricating liquid b during use exceeds a set value, so that maintenance personnel can promptly discover and replenish the lubricating liquid b to ensure the safe operation of the device.

[0038] In one embodiment, the lubrication assembly 1 includes two sets, and the two sets of lubrication assemblies 1 are respectively set to correspond to the two apron plates 300 of the escalator, which can lubricate both apron plates 300 of the escalator and improve the safety of the escalator. In addition, the settings of the two sets of lubrication assemblies 1 do not interfere with each other, the layout is flexible, and the layout difficulty is reduced.

[0039] In one embodiment, as shown in Figure 3, the anti-pinch protection device 100 includes two sets of lubrication components 1, and the two sets of lubrication components 1 are respectively set to correspond to the two apron plates 300 of the escalator, and the two liquid storage tanks 11 in the two sets of lubrication components 1 are connected by a connecting pipe 16. In this way, the liquid levels of the two liquid storage tanks 11 are level, and the liquid level alarm 15 can be set at an appropriate position in only one of the liquid storage tanks 11 to monitor the amount of lubricating fluid b in the two liquid storage tanks 11. The structure is more streamlined and the production cost of the device is reduced. In addition, when replenishing the lubricating fluid b, it is only necessary to open one of the liquid storage tanks 11 for replenishing the fluid, and the lubricating fluid b can be replenished into the two liquid storage tanks 11, which simplifies the replenishing operation and is more convenient for maintenance.

[0040] In one embodiment, the liquid guiding structure 14 includes a wick 141 , a wick holder 142 and a connecting hose 143 . The connecting hose 143 connects the liquid storage tank 11 and the wick holder 142. The wick holder 142 is used to hold the lubricating liquid b. The wick holder 142 and the liquid storage tank 11 are arranged on the same horizontal line to ensure that the liquid level of the wick holder 142 is at the same height as the liquid level of the liquid storage tank 11. One end of the wick 141 extends to the bottom of the wick holder 142 and is immersed in the lubricating liquid b in the wick holder 142. The other end of the wick 141 extends at least to the active path C of the lubricating part 12. When the wick 141 contacts the lubricating part 12, it is used to transport the lubricating liquid b in the liquid storage tank 11 to the lubricating part 12 through capillary action to realize the circulation of the lubricating liquid b. There is no need to set up an additional power device to pump the lubricating liquid b, nor is there a need to set up a pipeline between the lubricating part 12 and the liquid storage tank 11. The structure is simple and reliable, which reduces the production and use costs of the device and the workload of use and maintenance. It is understandable that the wick 141 can be any structure that can form a capillary effect, such as multiple strands of plant fibers, multiple capillaries, sponge strips, etc.

[0041] The present application also provides an escalator, which includes the anti-pinch protection 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.

[0042] 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 anti-pinch protection device for an escalator, wherein: The anti-pinch protection device includes a lubrication assembly, and the lubrication assembly includes: A fluid reservoir for providing lubricating fluid; a lubricating member, connected to the liquid storage tank, for applying lubricating liquid to the apron plate of the escalator to reduce the friction coefficient of the apron plate surface; and The liquid collecting trough is arranged below the apron plate to collect the lubricating liquid flowing down from the surface of the apron plate.

2. The anti-pinch protection device according to claim 1, wherein: The lubricating element is used to be installed on the side of the steps of the escalator so as to move along with the steps, thereby applying lubricating liquid to the apron plate.

3. The anti-pinch protection device according to claim 1, wherein: The liquid collecting trough has a first side wall and a second side wall opposite to each other, wherein the first side wall is used to correspond to the step setting of the escalator, and the second side wall is used to be set away from the step setting of the escalator, and the second side wall is connected to a guide slope, which is upward and used to be inclined in the direction of the step to extend to the bottom of the apron plate.

4. The anti-pinch protection device according to claim 1, wherein: The liquid storage tank is used to be arranged in the lower turning station of the escalator, and the liquid storage tank is communicated with the lower end of the liquid collecting tank.

5. The anti-pinch protection device according to claim 4, wherein: The lubrication assembly also includes a liquid guiding structure, one end of which extends into the liquid storage tank, and the other end of which extends at least to the movable path of the lubricating component. The liquid guiding structure is used to transport the lubricating liquid in the liquid storage tank to the lubricating component through capillary action when in contact with the lubricating component.

6. The anti-pinch protection device according to claim 5, wherein: At least one of the liquid guiding structure and the lubricating component is elastically arranged in the extrusion direction of the two.

7. The anti-pinch protection device according to claim 6, wherein: The lubricating component includes a liquid brush made of elastic material.

8. The anti-pinch protection device according to claim 1, wherein: The lubrication assembly further comprises a liquid level alarm arranged in the liquid storage tank.

9. The anti-pinch protection device according to any one of claims 1 to 8, wherein: The lubrication assembly comprises two sets, and the two sets of the lubrication assembly are respectively arranged corresponding to the two apron plates of the escalator.

10. An escalator, wherein: The escalator comprises the anti-pinch protection device according to any one of claims 1 to 9.

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