Comb plate for conveying device and conveying device

Abstract

The invention provides a comb plate for a conveying device, a plurality of teeth are arranged on the comb plate, the teeth basically stretch across the width of a conveying belt of the conveying device and are parallel to one another, each tooth in the teeth is matched into a corresponding groove formed in a step of the conveying belt during use, the comb plate further comprises a plurality of idler wheels, and the idler wheels are arranged on the comb plate. And the plurality of rollers are arranged at the front parts of at least part of the teeth. The invention further provides a conveying device.

Description

Technical Field

[0001] The present application relates to a conveying device, and more particularly, to a technology related to a comb plate. Background Art

[0002] The comb plate is installed at the entrance and exit of an escalator or moving walkway, for example, and its teeth have a shape and slope that prevents passengers from tripping when leaving the escalator or moving walkway. One side of the comb plate is supported on the front plate, and the end with teeth cooperates with the steps (or pedals) in a staggered manner during the operation of the escalator or moving walkway. If a foreign object is embedded in the meshing part of the step and the comb teeth, the step cannot mesh with the comb plate normally, which may cause the comb teeth to bend or break. If the step still cannot enter the comb plate at this time, it will cause damage to important parts. Taking the escalator as an example, it is provided with a comb plate foreign body protection device, but the existing foreign body protection device is mainly to emergency brake the escalator by triggering the electrical circuit disconnected by the switch when the foreign object is stuck and cannot be disposed of.

[0003] In addition, the material of the teeth of the comb plate is usually relatively weak in rigidity and is easily bent by stepping on or other large forces applied thereto. The bending of the teeth also affects the fit between the comb plate and the steps, may cause damage to the components, and in some cases may also affect the safety of pedestrians. Summary of the invention

[0004] The comb plate for a conveying device provided in the present application can improve at least one of the above problems.

[0005] According to one aspect of the present application, a comb plate for a conveying device is provided, wherein a plurality of teeth are arranged on the comb plate, wherein the plurality of teeth are arranged across the width of the conveyor belt of the conveying device and are substantially parallel to each other, wherein each of the plurality of teeth fits into a corresponding groove arranged on the conveyor belt step when in use, and the comb plate further comprises: a plurality of rollers arranged at the front of at least some of the teeth.

[0006] The comb plate for a conveying device may, optionally or additionally, have the plurality of rollers disposed in grooves in front of at least some of the teeth.

[0007] The comb plate for the conveying device may, optionally or additionally, be provided in each of the grooves with: a first roller rotatably fixed to the groove, the first roller being arranged to contact with the bottom of the corresponding groove when the tooth on which the first roller is located is engaged with the corresponding groove so as to rotate along a first direction driven by the first roller; and a second roller rotatably fixed to the groove at a position close to the step and arranged to contact with the first roller so as to rotate along a second direction driven by the first roller, the second direction being opposite to the first direction.

[0008] The comb plate for the conveying device may, optionally or additionally, be configured such that the second roller does not contact the bottom of the corresponding groove when the tooth on which the second roller is located is engaged with the corresponding groove.

[0009] In the comb plate for a conveying device, as an example or in addition, the groove is configured to partially expose the second roller.

[0010] For the comb plate for a conveying device, optionally or additionally, the first roller is constructed of an elastic material, and the second roller is constructed of a rigid material.

[0011] For the comb plate for the conveying device, optionally or additionally, the diameter of the second roller is larger than the gap between adjacent steps in the steps.

[0012] The comb plate for the conveying device may, optionally or additionally, be provided with the first roller and the second roller for each of the plurality of teeth.

[0013] The comb plate for the conveying device may, optionally or additionally, have the plurality of rollers disposed on a bracket located below the front portion of the teeth, and the bracket may be capable of rotating along an axis in the width direction of the conveyor belt.

[0014] The comb plate for the conveying device may, optionally or additionally, further include a reset elastic member, wherein the reset elastic member is configured to reset the bracket after rotation.

[0015] The comb plate for the conveying device, optionally or additionally, the reset elastic component includes: a frame connected to the bracket including at least two longitudinal arms arranged along the length direction of the conveyor belt; a plate portion, which is fixed to the comb plate; an axis portion, which includes a box body and an axis, the axis passes through the box body, and the end of the axis is connected to the longitudinal arm, and the box body is fixed to the plate body; an elastic member, one end of which is fixed to the plate portion, and the other end is arranged at the end of the axis and is fixed in the length direction of the axis by the longitudinal arm and the box body.

[0016] In the comb plate for a conveying device, optionally or additionally, the elastic member is configured as a torsion spring, and the torsion spring body is arranged at the end of the shaft.

[0017] The comb plate for the conveying device may, optionally or additionally, have the plurality of rollers arranged in a manner that they are spaced at least one tooth apart from each other, and the front portions of the teeth corresponding to the positions of the rollers are arranged so that the rollers are partially exposed.

[0018] The comb plate for the conveying device may, optionally or additionally, have a recessed portion for accommodating the bracket at the front of the teeth between the rollers.

[0019] A conveying device is also provided, which includes: a truss; a conveyor belt, the conveyor belt including a plurality of steps; a first bottom plate and a second bottom plate are provided at both ends of the conveyor belt, and the first bottom plate and the second bottom plate are provided with comb plates described in any of the above examples at the transition area with the steps.

[0020] In the above examples, the conveying device may be a personnel and / or article conveying device such as an escalator or a moving walkway. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The following will describe the embodiments of the present application in detail with reference to the accompanying drawings so that the present application can be more fully understood, wherein:

[0022] Figure 1 is a schematic diagram of an escalator 10;

[0023] Figure 2 It is a schematic diagram of the structure of an escalator;

[0024] Figure 3 Indicated absence Figure 2 An enlarged structural diagram of the landing area 7 is shown in FIG.

[0025] Figure 4 is a schematic structural diagram of the teeth of a comb plate according to an embodiment of the present application;

[0026] Figure 5 yes Figure 4 A schematic side view of the teeth and corresponding grooves shown in FIG.

[0027] FIG. 6A to FIG. 6C It shows what happens when a pedestrian steps on the comb plate;

[0028] Fig.6D It shows the state when the foot 50 is completely transferred to the comb plate;

[0029] FIG. 7A to FIG. 7C The process of small objects falling into the slots of the steps is illustrated;

[0030] Figure 8 It is a schematic diagram of the relationship between the width D of the gap between adjacent steps and the roller;

[0031] Fig. 9 is a structural schematic diagram of a comb plate according to another embodiment of the present application;

[0032] Fig. 10A is a schematic diagram of an existing comb plate;

[0033] Fig. 10B yes Fig. 9 A schematic diagram of a comb plate is shown;

[0034] Fig.11 The structure of a specific example of a restoring elastic member is shown;

[0035] Fig.12 is an exploded view of the resetting elastic member;

[0036] Fig.13 is a schematic diagram of the resetting elastic member of the roller having been installed on the comb plate;

[0037] FIG. 14A to FIG. 14C The figure shows the situation when a pedestrian steps on the comb plate according to the present embodiment. DETAILED DESCRIPTION

[0038] In order to help those skilled in the art to accurately understand the subject matter for which protection is sought in the present application, the specific implementation of the present application will be described in detail below in conjunction with the accompanying drawings.

[0039] The terms "first", "second", etc. in the specification, claims and drawings of this application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the invention described herein can be implemented in an order other than those illustrated or described herein. In addition, "first" and "second" are used for descriptive purposes only and are not to be understood as expressly or implicitly indicating relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features, and in the description of the embodiments of the present application, unless otherwise stated, "multiple" means two or more.

[0040] As used hereinafter, the words “example” or “exemplarily” or “exemplarily” mean “serving as an example, embodiment, or illustration.” Any embodiment described as “example” or “exemplarily” or “exemplarily” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0041] The conveying device described in the present application may include an escalator, a travelator, or other conveying device for conveying passengers and / or articles, wherein a travelator may also be referred to as a moving walkway, and a conveying device may also be referred to as a transmission device, a transmission system, a conveying system, a passenger conveyor, a passenger conveyor system, etc. Although the following embodiments of the present application are all described with an escalator as an example of a conveying device, it should be understood that the examples of the comb plate described in the present application in conjunction with the escalator may be applied to other conveying devices or conveying systems such as a travelator.

[0042] Figure 1An escalator 10 is illustrated. In the ensuing description, it should become apparent that the present invention is applicable to other passenger conveyor systems, such as moving walkways. The escalator 10 generally includes a truss 12 extending between a lower landing 14 and an upper landing 16. A plurality of sequentially connected steps or pallets 18 are connected to a step chain 20 and travel through a closed loop path within the truss 12. Pairs of handrails 22 include moving handrails 24. A drive machine 26 or drive system is typically positioned in a machine space 28 below the upper landing 16; however, an additional machine space 28' may be positioned below the lower landing 14. The drive machine 26 is configured to drive the steps 18 and / or handrails 24 via the step chain 20. The drive machine 26 operates to move the steps 18 in a selected direction at a desired speed under normal operating conditions.

[0043] The steps 18 make a 180 degree change of direction in a turning area 19 located below the lower landing 14 and the upper landing 16. The steps 18 are pivotally attached to a step chain 20 and follow the closed loop path of the step chain 20, running from one landing to another and back again.

[0044] The drive machine 26 includes a first drive component 32, such as a motor output sheave, connected to a drive motor 34 via a belt reduction assembly 36, which includes a second drive component 38, such as an output sheave, driven by a tensioning component 39, such as an output belt. In some embodiments, the first drive component 32 is a driving component and the second drive component 38 is a driven component.

[0045] As used herein, in various embodiments, the first drive member 32 and / or the second drive member 38 can be any type of rotating device, such as a rope, pulley, gear, wheel, sprocket, cog, pinion, etc. In various embodiments, the tension member 39 can be configured as a chain, belt, cable, belt, band, strip, or any other similar device that operatively connects two elements to provide a driving force from one element to another. For example, the tension member 39 can be any type of interconnecting member that extends between the first drive member 32 and the second drive member 38 and operatively connects the first drive member 32 and the second drive member 38. In some embodiments, as Figure 1 As shown in FIG. 1 , the first drive member 32 and the second drive member 38 may provide belt reduction. For example, the diameter of the first drive member 32 may be approximately 75 mm (2.95 inches), while the diameter of the second drive member 38 may be approximately 750 mm (29.53 inches). For example, the belt reduction allows the sheaves to be replaced to change the speed for 50 or 60 Hz mains power applications or different step speeds. However, in other embodiments, the second drive member 38 may be substantially similar to the first drive member 32.

[0046] As noted, the first drive member 32 is driven by the drive motor 34 and is thus configured to drive the tensioning member 39 and the second drive member 38. In some embodiments, the second drive member 38 may be an idler gear or similar device that is driven by the tensioning member 39 through the operative connection between the first drive member 32 and the second drive member 38. The tensioning member 39 travels around a loop set by the first drive member 32 and the second drive member 38, which may be referred to as a small loop hereinafter. The small loop is provided for driving a larger loop, which is composed of the step chain 20 and is driven by, for example, the output sheave 40. Under normal operating conditions, based on the movement speed of the first drive member 32 as driven by the drive motor 34, the tensioning member 39 and the step chain 20 move in unison.

[0047] The escalator 10 also includes a controller 115 in electronic communication with the drive motor 34. As shown, the controller 115 can be positioned in the machine space 28 of the escalator 10 and is configured to control the operation of the escalator 10. For example, the controller 115 can provide a drive signal to the drive motor 34 to control the acceleration, deceleration, stop, etc. of the step pallet 18 through the step chain 20. The controller 115 can be an electronic controller including a processor and an associated memory, the memory including computer executable instructions, which, when executed by the processor, cause the processor to perform a variety of operations. The processor can be, but is not limited to, a single processor or multi-processor system of any architecture in a variety of possible architectures, including field programmable gate arrays (FPGAs), central processing units (CPUs), application specific integrated circuits (ASICs), digital signal processors (DSPs), or graphics processing units (GPUs) hardware arranged in a homogeneous or heterogeneous manner. The memory can be, but is not limited to, random access memory (RAM), read-only memory (ROM), or other electronic, optical, magnetic, or any other computer-readable medium.

[0048] Figure 2 Schematic diagram of the structure of some examples of escalators according to the present application. Figure 2 As shown, the escalator has a truss 4 extending between a lower landing 3 and a corresponding upper landing (not shown) including a floor 6. A plurality of steps 1400 constitute a step chain, also referred to as a conveyor belt 8. The floor 6 may also be referred to as a cover plate or the like in some cases.

[0049] Figure 3 Indicated absence Figure 2 The enlarged structure diagram of the upper station 7 is shown in FIG. Figure 3As shown, the steps 1400 of the conveyor belt 8 or the step chain 8 are provided with a plurality of alternating strips 2000 and tread grooves 2200 extending in the longitudinal direction (conveying direction). The comb plate 160 is arranged to be close to the bottom plate 6 on the side facing the step chain 8. The comb plate 160 includes a plurality of teeth 1800 extending in the longitudinal direction, the teeth 1800 are in a staggered relationship with the strips 2000 on the steps 1400 and extend into the tread grooves 2200. In other words, during the use of the escalator, the strips 2000 of the steps 1400 and the teeth 1800 of the comb plate 160 move in a staggered manner, wherein the teeth 1800 of the comb plate 160 are engaged in the grooves 2200 corresponding thereto during the staggering process with the strips 2000.

[0050] The comb plate according to the present application further comprises a plurality of rollers. The rollers are arranged in at least some of the teeth of the plurality of teeth. According to the present application, the rollers are arranged in front of at least some of the teeth. In some examples, each tooth is provided with a roller. In other examples, only some of the teeth are provided with rollers. By way of example and not limitation, the rollers are arranged in a groove in front of the teeth where they are located, that is, during the interlaced movement of the plurality of teeth and the strips of the steps, the rollers of the teeth provided with the rollers interlaced with the corresponding strips.

[0051] Figure 4 1 is a schematic diagram of the structure of the teeth of the comb plate according to an embodiment of the present application. Figure 3 ) is used as an example to illustrate the structure of the teeth of the comb plate according to this embodiment. The front portion 1801a of the tooth 1801 is provided with a groove 1801b, and the roller is arranged in the groove 1801b. In this example, the first roller 31 and the second roller 33 are arranged in the groove 1801b.

[0052] The first roller 31 is arranged inside the groove 1801b and is rotatably fixed in the groove 1801b, and the first roller 31 contacts the bottom 2201 of the matching groove 2200 on the step 1400, so that when the step 1400 moves along the conveying direction, the first roller 31 is driven to rotate. Figure 5 yes Figure 4 A side view of the teeth and corresponding grooves shown in FIG. Figure 5 As shown, when the step moves along the conveying direction x, it drives the first roller 31 to rotate along the rotation direction Rx31 indicated by the arrow.

[0053] The second roller 33 is rotatably fixed to the groove 1801b (see Figure 4), and is arranged to contact the first roller 31 so as to rotate under the drive of the first roller 31. In the example of the present application, the second roller 33 is arranged to rotate under the drive of the first roller 31, and the rotation direction of the second roller 33 is therefore opposite to the rotation direction of the first roller 31. Specifically, the second roller 33 rotates along Figure 5 As an example, the second roller 33 does not contact the bottom 2201 of the corresponding groove 2200.

[0054] According to some examples of the present application, the first roller 31 is made of an elastic material, such as rubber. In some cases, by way of example and not limitation, the second roller 33 may be made of a rigid material, such as a rigid metal material. The first roller 31 made of an elastic material can increase the friction between the roller and the bottom 2201 of the corresponding groove 2200, which helps the first roller 31 to roll due to the friction with the bottom 2201. The second roller 33 contacts the first roller 31 of the elastic material and rolls under the drive of the latter, and the second roller 33 made of a rigid material is more wear-resistant. It should be noted that the materials of the first roller and the second roller can be selected according to actual needs, and are not limited to those illustrated in the present application.

[0055] According to some examples of the present application, the first roller 31 is disposed on the shaft 310, and the shaft 310 is fixed in the groove 1801b (marked at Figure 4 ). The first roller 31 is, for example, a bearing or other rotatable member that can be configured to be fixed to the groove 1801b in a rolling manner driven by the corresponding groove 2200.

[0056] According to some examples of the present application, the second roller 33 is disposed on the shaft 320, and the shaft 320 is fixed to the groove 1801b (marked at Figure 4 ). The second roller 33 is, for example, a bearing or other rotatable member that can be fixed to the groove 1801b in a manner that it can roll under the drive of the corresponding groove 2200. It should be noted that the first roller 31 and the second roller 33 can both be bearings, or one can be a bearing and the other can be other rotatable members, or both can be other rotatable members, as long as the rotation of the first roller 31 can drive the second roller 33 to rotate.

[0057] According to some examples of the present application, the groove 1801b of the tooth 1801 is configured to allow the second roller 33 to be partially exposed. Figure 4 and Figure 5As shown, when the tooth 1801 extends into the corresponding groove 2200, the first roller 31 rotates along the direction Rx31 and the second roller 33 rotates along the direction Rx32. During this process, the first roller 31 is arranged in the groove 1801b, far away from the step and always placed inside the tooth 1801, and the second roller 33 is arranged at the position closest to the step of the tooth 1801 and is arranged to always keep the front part 1801a of the tooth 1801 partially exposed.

[0058] According to an embodiment of the present application, a first roller and a second roller may be provided at the front of each of the plurality of teeth of the comb plate. That is, each tooth of the comb plate may be configured as, for example, a first roller and a second roller. Figure 4 , Figure 5 As shown in the tooth 1801. As an alternative, the first roller and the second roller can also be arranged only in part of the teeth.

[0059] Including Figure 4 and Figure 5 After the comb plate with teeth is applied to the escalator, when a pedestrian steps on the comb plate, he will first contact the second roller 33. The second roller 33 rotates under the drive of the first roller 31 and, under the action of the first roller 31 and the second roller 33, the pedestrian's shoes are lifted up and the pedestrian continues to move forward, effectively avoiding the situation where the comb teeth are pressed downward by the pedestrian and deformed.

[0060] FIG. 6A to FIG. 6C It shows what happens when a pedestrian steps on the comb plate. Fig. 6A As shown, when a pedestrian takes the running escalator, when the step is coupled to the teeth of the comb plate, the pedestrian's foot 50 first contacts the second roller 33. The second roller 33 is driven by the first roller 31 along the direction Rx32 (see Figure 5 ) direction, which, from the perspective of the pedestrian, is the same as the running direction x of the step 1400 (see Figure 5 ) is consistent. As the escalator moves, the pedestrian's feet 50 Fig. 6A The position just touching the second roller 33 moves forward to Figure 6B As shown in the figure, the forefoot of the pedestrian steps on the position of the second roller 33. In this process, the second roller 33 slightly lifts the pedestrian's foot 50 so that it falls smoothly on the comb plate. Figure 6C In this process, after the foot 50 contacts the second roller 33, which is elastic and fixed in the groove, while rotating, it always gives the foot 50 an upward force (in the y direction), so as to prevent the comb teeth from bending downward and deforming due to the stepping of the foot 50, thereby effectively avoiding the safety hazard caused by the deformation of the teeth. Fig.6D The figure shows the state when the foot 50 is completely transferred to the comb plate. At this time, the upward support force F31 of the first roller 31 helps to prevent the foot 50 from stepping on the comb plate and causing the teeth to deform. FIG. 6A to FIG. 6DIn the illustrated example, the passenger's foot 50 is only a specific example, not a limitation, of various types of objects that may act on the comb plate to cause deformation, such as a crutch of the passenger (in the case of using a crutch).

[0061] On the other hand, including according to the combination Figure 4 and Figure 5 After the comb plate with teeth is applied to the escalator, it can also effectively prevent foreign objects from being stuck between the comb plate and the steps. FIG. 7A to FIG. 7C The process of small objects falling into the slots of the steps is illustrated. Fig. 7A In the embodiment, the small object nail 60 falls into the groove 2200, and as the step moves along the x direction, it first hits the second roller 33, as shown in FIG. Figure 7B As shown. Along the direction Rx32 (see Figure 5 ) The rotating roller 33 lifts the nail, and finally Figure 7C As shown, the nail is pushed out of the groove 2200.

[0062] Furthermore, including the combination of Figure 4 and Figure 5 After the comb plate with teeth described above is applied to the escalator, since the diameter of the second roller 33 is larger than the gap between adjacent steps, the contact between the teeth of the comb plate and the steps can be effectively avoided. Figure 8 As shown, the step 1400-L on the left and the step 1400-R on the right are adjacent to each other, and the width D of the gap between them is smaller than the diameter of the second roller 33. Therefore, due to the second roller 33, the heads of the teeth of the comb plate will never collide or hit the steps during the movement of the steps along the X direction.

[0063] Fig. 9 1 is a schematic diagram of the structure of a comb plate according to another embodiment of the present application. In this embodiment, the comb plate 8 includes a plurality of rollers 80. The plurality of rollers 80 are arranged on a bracket 90 below the front portion of at least some of the plurality of teeth 1800. The bracket 90 is arranged below the front portion of the teeth in a manner that it can rotate along the axis in the width direction of the conveyor belt.

[0064] In some examples, the rollers 80 are arranged at least one tooth apart from each other. Fig. 9 In this example, two rollers with 4 or 5 teeth spaced apart from each other are arranged on one bracket 90, and two brackets 90 are arranged below the teeth of the comb plate, but this is an example and is not limited thereto. According to the example of the present application, the front part of the teeth for setting the roller corresponding to the position of the roller is arranged so that the roller is partially exposed. Fig. 10A is a schematic diagram of an existing comb plate; Fig. 10B yes Fig. 9 Schematic diagram of the comb plate shown. Fig. 10BThe front parts of the several teeth used to set the rollers are not configured into the shape of the front parts of the existing teeth, that is, they are not configured as Fig. 10A Instead of the existing front shape 183' like a "tooth" such as the tooth 183, rollers 80 are respectively provided.

[0065] Back to Fig. 9 The lower part of the tooth between the two rollers 80 is constructed to have a recessed portion 90' (see below Fig.13 ) to accommodate the bracket 90. The bracket 90 is connected to the resetting elastic member 9, and the resetting elastic member 9 is configured to reset the bracket 90 after rotation.

[0066] According to an example of the present application, the resetting elastic member 9 includes a frame connected to a bracket 90, and the frame includes a plurality of longitudinal arms, such as at least two longitudinal arms, and in some cases, may be three or four. The longitudinal arms are arranged along the length direction of the conveyor belt. The bracket 90 passes through one end of the longitudinal arm and is thus connected to the frame. The resetting elastic member 9 also includes a plate portion, a shaft portion and an elastic member. The plate portion is fixed on the comb plate. The shaft portion includes a box body and an axis, the axis passes through the box body and the end of the axis is connected to the longitudinal arm, and the box body is fixed on the plate portion. One end of the elastic member is fixed to the plate portion, and the other end is arranged at the end of the axis and is fixed along the length direction of the axis by the longitudinal arm and the box body.

[0067] Fig.11 The structure of a specific example of the return elastic member 9 is illustrated. Fig.12 is an exploded view of the resetting elastic member 9. Fig.11 and Fig.12 . The frame of the reset elastic member 9 includes a first longitudinal arm 901, a second longitudinal arm 902 and a transverse arm (not shown) connecting the two longitudinal arms 901 and 902, a plate portion 930, an axis portion 91 and an elastic member. The two ends of the bracket 90 are respectively connected to one end of the first longitudinal arm 901 and the second longitudinal arm 902 of the frame of the reset elastic member 9, and the other ends of the first longitudinal arm 901 and the second longitudinal arm 902 are connected through the transverse arm of the frame. The axis portion 91 includes a box body 940 and an axis 912, and the axis 912 can pass through the box body 940 and the two ends of the axis 912 can be connected to the first longitudinal arm 901 and the second longitudinal arm 902 respectively. The torsion spring as the elastic member, in this example, includes a first torsion spring 910-1 and a second torsion spring 910-2.

[0068] According to some specific examples of the present application, the torsion spring body (spring coil) of the first torsion spring 910-1 is arranged between the first longitudinal arm 901 and the box 940 through the shaft 912, and the torsion spring body (spring coil) of the second torsion spring 910-2 is arranged between the second longitudinal arm 902 and the box 940. In this way, the first torsion spring 910-1 cannot move along the length direction of the shaft 912 because of the first longitudinal arm 901 and the box 940 arranged on both sides thereof, and similarly, the second torsion spring 910-2 cannot move along the length direction of the shaft 912 because of the second longitudinal arm 902 and the box 940 on both sides. The other ends of the first torsion spring 910-1 and the second torsion spring 910-2 are both fixed to the plate 930, and the plate 930 is fixed to the comb plate, and is combined with the box 940 by screws, so that the box 940 is fixed to the comb plate through the plate 930. The shaft 912 passes through the box 940 and can rotate in the box 940.

[0069] Continue to refer to Fig.12 The bracket 90 may include a circular inner bracket 90B made of, for example, a rigid material (such as a rigid metal material) and an outer bracket 90A made of, for example, a rigid material (such as a rigid metal material) for accommodating the inner bracket 90B. The rollers 80 are disposed at both ends of the outer bracket 90. Spacers 83 may be disposed between the two rollers 80 and the longitudinal arms 901 and 902, respectively.

[0070] Fig.13 Schematic diagram of the reset elastic member 9 with the roller already installed on the comb plate. Fig.13 As shown, the resetting elastic member 9 is mounted on the comb plate by means of a first screw 121 and a second screw 122 , wherein the bracket 90 is arranged in the recessed portion 90 ′ accordingly.

[0071] Back to Fig. 9 The roller 80 is fixed in the width direction of the comb plate by the first longitudinal arm 901 or the second longitudinal arm 902 and the adjacent teeth on the other side of the roller 80 (the width direction of the comb plate is also the width direction of the conveyor belt after the comb plate is installed on the escalator). The roller 80 itself can rotate around the bracket 90, and the bracket 90 can rotate around the axis 912 in the width direction of the comb plate driven by the reset elastic member 9.

[0072] For example, Fig. 9 After the comb plate shown is installed on the escalator, when a pedestrian's foot steps on the meshing position of the comb plate and the step, it can be immediately ejected upward to avoid accidents. FIG. 14A to FIG. 14C The figure shows the situation when a pedestrian steps on the comb plate according to this embodiment. Fig.14AAs shown, when a pedestrian takes a running escalator, when the step is combined with the teeth of the comb plate, the pedestrian's foot 50 just contacts the front end of the tooth 1800 and starts to squeeze the tooth 1800 downward (in the opposite direction of the Y direction). As the step (not shown) moves forward, the pedestrian's foot 50 will move to the top of the bracket 90 and push the bracket 90 downward (in the opposite direction of the Y direction) through the teeth, as shown in FIG. Fig. 14B At this time, the force applied to the bracket 90 acts on the torsion springs (910-1, 910-2) through the longitudinal arms (901, 902), and the torsion springs (910-1, 910-2) generate a torsion force, causing the resetting elastic member 9 to rotate upward along the axis 912, and the bracket 90 is driven to lift the pedestrian's foot 50 upward (generally in the direction of Y), thereby preventing the tooth 1800 from being pressed downward and deformed.

[0073] In combination with the above Fig.11 and Fig.12 In each example of the resetting elastic member 9, the first longitudinal arm 901 and the second longitudinal arm 902 can be made of the same material or different materials, for example, both can be made of rigid metal materials. The plate portion 930, the box body 940 and the shaft 912 can all be made of rigid metal materials, and the roller 80 can be a bearing or other rotatable component.

[0074] The comb plate according to the present application may only include a Figures 9 to 13 The roller is arranged in the manner described, or only comprises the combination Figure 4 and Figure 5 The invention relates to a roller arranged in the manner described, or a roller arranged in both the manners.

[0075] The present application also provides a conveying device, which is, for example, an escalator or a moving walkway. The conveying device includes a truss, a conveyor belt including a plurality of steps, and one of the comb plates described in the examples of the present application, the comb plates being arranged in the transition area between the first bottom plate and the second bottom plate at both ends of the conveyor belt and the steps. The first bottom plate and the second bottom plate are, for example, the bottom plates arranged at the upper station and the lower station described above in conjunction with the accompanying drawings.

[0076] In the absence of contradiction or conflict, the technical features in the examples described herein may be combined with each other to form implementations not described herein, which should also be covered by the scope of this application.

[0077] By using the comb plate described in any example of the present application, when the conveyor belt of an escalator or moving walkway is combined with the comb plate, it is possible to effectively prevent the feet of people riding the conveyor from pressing down on the teeth of the comb plate and deforming them, thereby causing potential dangers. In addition, some examples can also effectively push out objects that fall into the gap between the steps and the comb plate through the rotation of the rollers, thereby avoiding damage to the comb teeth, thereby avoiding the occurrence of safety hazards caused by comb tooth damage, and at the same time, more effectively ensuring the safety of elevator pedestrians.

[0078] Although specific embodiments of the present application have been shown and described in detail to illustrate the principles of the present application, it should be understood that the present application can be implemented in other ways without departing from such principles.

Claims

1. A comb plate for a conveying device, wherein the comb plate is provided with a plurality of teeth, the plurality of teeth are arranged across the width of the conveyor belt of the conveying device and are substantially parallel to each other, characterized in that: Each of the plurality of teeth is engaged in a corresponding groove provided on the conveyor belt step when in use, and the comb plate further comprises: A plurality of rollers are disposed in front of at least some of the teeth.

2. The comb plate according to claim 1, characterized in that: The plurality of rollers are disposed in grooves in front of the at least partial teeth.

3. The comb plate according to claim 2, characterized in that: Each of the grooves is provided with: A first roller is rotatably fixed to the groove, and the first roller is configured to contact the bottom of the corresponding groove when the tooth on which the first roller is located is engaged with the corresponding groove so as to rotate in a first direction driven by the bottom of the corresponding groove; and The second roller is rotatably fixed to the groove at a position close to the step and is arranged to contact the first roller so as to be driven by the first roller to rotate in a second direction opposite to the first direction.

4. The comb plate according to claim 3, characterized in that: The second roller is arranged not to contact the bottom of the corresponding groove when the tooth of the second roller is engaged with the corresponding groove.

5. The comb plate according to claim 3, characterized in that: The groove is configured to partially expose the second roller.

6. The comb plate according to claim 3, characterized in that: The first roller is constructed of an elastic material, and the second roller is constructed of a rigid material.

7. The comb plate according to claim 3, characterized in that: The diameter of the second roller is larger than the gap between adjacent steps.

8. The comb plate according to any one of claims 3 to 7, characterized in that: Each of the plurality of teeth is provided with the first roller and the second roller.

9. The comb plate according to claim 1, characterized in that: The plurality of rollers are arranged on a bracket located below the front portion of the teeth, and the bracket is rotatable along an axis in the width direction of the conveyor belt.

10. The comb plate according to claim 9, characterized in that: The comb plate further includes a restoring elastic member configured to restore the bracket after the bracket rotates.

11. The comb plate according to claim 10, characterized in that: The resilient reset member comprises: A frame body connected to the bracket and comprising at least two longitudinal arms arranged along the length direction of the conveyor belt; a plate portion, which is fixed to the comb plate; an axle portion, comprising a box body and a shaft, wherein the shaft passes through the box body and an end of the shaft is connected to the longitudinal arm, and the box body is fixed to the plate portion; An elastic member has one end fixed to the plate portion and the other end disposed at the end of the shaft and fixed in the length direction of the shaft by the longitudinal arm and the box body.

12. The comb plate according to claim 11, characterized in that: The elastic member is configured as a torsion spring, and the torsion spring body is disposed at an end portion of the shaft.

13. The comb plate according to claim 9, characterized in that: The plurality of rollers are arranged in a manner that they are spaced apart from each other by at least one tooth, and the front portion of the tooth corresponding to the position of the roller is arranged so that the roller is partially exposed.

14. The comb plate according to any one of claims 9 to 13, characterized in that: The front parts of the teeth between the rollers are all provided with recessed parts for accommodating the bracket.

15. A conveying device, characterized in that: include: truss; a conveyor belt, the conveyor belt comprising a plurality of steps; The conveyor belt is provided with a first bottom plate and a second bottom plate at both ends, and the first bottom plate and the second bottom plate are provided with a comb plate according to any one of claims 1 to 14 at a transition area with the steps.

16. The delivery device according to claim 15, wherein: The conveying device is an escalator or a moving walkway.

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