An escalator and its steps and guide member

Abstract

The present invention discloses a step of an escalator, comprising a step body, mounting holes are respectively provided on the left and right sides of the step body, and the step also comprises a guide member arranged on the step body, the guide member comprises two groups arranged on the left and right sides of the step body, each group of guide members comprises a plug-in portion and a contact portion, along the left and right directions of the step body, the contact portion is located on the outside of the plug-in portion, and the contact portion is located on the outside of the step body, at least part of the plug-in portion is inserted in the mounting hole on the same side, the plug-in portion has a limiting structure for limiting the plug-in portion from being separated from the mounting hole, and a plurality of accommodating grooves are spaced apart on one side of the contact portion away from the plug-in portion, and the plurality of accommodating grooves are interconnected. The escalator and its steps and guide members can significantly reduce the contact area between the step and the apron plate, the guide member can provide guidance for the step, reduce or prevent the friction and collision between the step and the apron plate, and play a role in silencing, greatly improving the riding comfort of passengers.

Description

Technical Field

[0001] The invention relates to the technical field of escalators, in particular to an escalator and steps and guide members thereof. Background Art

[0002] With the improvement of public transportation facilities, there are more and more public transportation escalators and moving walkway projects. People have higher and higher requirements for the comfort of escalators and moving walkways. As an important component of escalator products, the step is used to transport passengers, so higher requirements are placed on the stability of the step components during operation.

[0003] In the prior art, metal apron plates are provided on both sides of the steps of the escalator to prevent passengers or their belongings from accidentally falling into the gaps on both sides of the steps and causing danger. Theoretically, there is a gap between the steps and the apron plates during normal operation of the escalator, and they are not in direct contact. However, due to actual installation errors, or too many passengers during operation, or someone exercising vigorously on the steps, the steps may move left and right, and the two sides of the steps may hit the apron plates, which will not only make noise and increase the sense of shaking and vibration, reducing the riding experience, but also cause wear due to the friction between the metal steps and the apron plates, reducing the service life of the escalator. Summary of the invention

[0004] The purpose of the present invention is to provide an escalator and its steps and guide parts which can run smoothly and reduce the collision and friction between the steps and the apron plate in view of the problems existing in the prior art.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] A step of an escalator, comprising a step body, with mounting holes respectively opened on the left and right sides of the step body, the step also comprising a guide member arranged on the step body, the guide member having two groups arranged on the left and right sides of the step body, each group of the guide members having a plug-in portion and a contact portion, along the left and right directions of the step body, the contact portion is located on the outside of the plug-in portion, and the contact portion is located on the outside of the step body, at least part of the plug-in portion is inserted in the mounting hole on the same side, the plug-in portion has a limiting structure for limiting the plug-in portion from being detached from the mounting hole, and a plurality of accommodating grooves are spaced apart on a side of the contact portion away from the plug-in portion, and the plurality of accommodating grooves are interconnected.

[0007] Preferably, each group of guide members is made of elastic material in one piece.

[0008] Preferably, in each group of the guide members, the accommodating groove includes a plurality of strip grooves arranged at intervals, and the extension directions of the plurality of strip grooves are parallel to each other. The accommodating groove also includes an annular groove, which extends along the circumference of the contact portion, and the annular groove connects all the strip grooves.

[0009] Further preferably, the step body includes a pedal, a kick plate and a bracket, one side of the pedal is connected to one side of the kick plate, the bracket is connected between the other side of the pedal and the other side of the kick plate, the mounting hole is arranged on the bracket, and the extension direction of each of the strip grooves is parallel to the extension direction of the bracket.

[0010] Further preferably, the accommodating groove also includes a center groove, which is located in the middle of the contact portion, and the center groove is directly connected to at least part of the strip grooves. Along the thickness direction of the contact portion, the depth of the center groove is greater than the depth of the strip grooves, and grease is stored in the strip grooves, the annular grooves, and the center groove.

[0011] Preferably, the plug-in portion includes a center column, the limiting structure includes a boss, the boss has a plurality of bosses arranged at intervals along the circumference of the center column, each of the bosses extends axially along the center column, the plug-in portion is made of elastic material, the outer diameter of the circumference jointly surrounded by the plurality of bosses is larger than the diameter of the mounting hole, and the plurality of bosses are inserted into the mounting hole in a damping-fitting manner.

[0012] Further preferably, there are at least three protruding columns evenly spaced apart along the circumference of the central column.

[0013] Further preferably, along the radial direction of the central column, the width of each of the protruding columns gradually decreases from inside to outside.

[0014] Preferably, the plug-in portion includes a center column, and the limiting structure includes a hook. Along the left and right directions of the step body, the hook is located on the inner side of the center column. The hook has at least two hooks arranged at radial intervals along the center column, and each of the hooks has a hook portion at an end away from the center column, and the hook portion protrudes radially outward along the center column. The hook is made of elastic material, and the center column is inserted in the mounting hole. Along the left and right directions of the step body, the hook portions are located on the inner side of the mounting hole and abut against the step body.

[0015] An escalator comprises an escalator frame with a riding space, the escalator frame comprises an apron plate, the apron plate comprises two groups arranged on the left and right sides of the riding space, the escalator also comprises the steps, the apron plate and the step body are both made of metal material, when the step is located in the riding space, on each left and right side of the step, the contact portion abuts between the step body and the apron plate on the same side.

[0016] Due to the application of the above technical solution, the escalator provided by the present invention is provided with guide members on the left and right sides of the steps, which can significantly reduce the contact area between the steps and the apron plate. The guide members can be directly inserted into the mounting holes, and the assembly is simple and stable. During the operation of the escalator, the guide members can provide guidance for the steps, reduce or prevent friction and collision between the steps and the apron plate, and play a role in silencing. It is applicable whether the steps are running upward or downward, which greatly improves the riding comfort of passengers. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for describing the embodiments.

[0018] Attached Figure 1 It is a partial three-dimensional schematic diagram of an escalator in a specific embodiment of the present invention;

[0019] Attached Figure 2 for Figure 1 The enlarged schematic diagram at A in the middle;

[0020] Attached Figure 3 for Figure 1 The enlarged schematic diagram of point B in the middle;

[0021] Attached Figure 4 is a schematic rear view of the step in this embodiment, wherein the guide member is not inserted into the mounting hole;

[0022] Attached Figure 5 for Figure 4 The enlarged schematic diagram at C in the middle;

[0023] Attached Figure 6 is a schematic rear view of the step in this embodiment, wherein the guide member is inserted into the mounting hole;

[0024] Attached Figure 7 for Figure 6 The enlarged schematic diagram at D in the middle;

[0025] Attached Figure 8 is a three-dimensional schematic diagram of the guide member in this embodiment;

[0026] Attached Fig. 9 is a side view schematic diagram of the guide member in this embodiment;

[0027] Attached Fig.10 is a schematic front view of the guide member in this embodiment;

[0028] Attached Fig.11 for Fig.10 EE cross-sectional view diagram;

[0029] Among them: 100, steps; 200, apron plate;

[0030] 10. Step body; 11. Pedal; 12. Kick plate; 13. Bracket; 131. Mounting parts;

[0031] 20. Guide member; 21. Plug-in portion; 211. Center column; 212. Boss; 213. Hook; 2131. Hook portion; 22. Contact portion; 221. Strip groove; 222. Annular groove; 223. Center groove. DETAILED DESCRIPTION

[0032] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art.

[0033] See also Figures 1 to 3 As shown, an escalator includes an escalator frame with a riding space and steps 100. Among them, the steps 100 have a plurality of steps connected in sequence up and down, and the escalator frame includes an apron plate 200, and the apron plate 200 has two groups arranged on the left and right sides of the riding space. In this embodiment, the running direction X of the escalator can be extended in an upward or downward direction (corresponding to upward or downward). During the operation of the escalator, at each moment, about half of the steps 100 are located in the riding space and move at a constant speed in the running direction X, which can be used for passengers to ride, and the other half of the steps 100 are located below the riding space, and all the steps 100 move in a circular shape along the running track (not shown in the figure). The up and down, left and right, front and back and other directions described in this article are all based on Figure 1 The direction observed by the passengers who normally stand on the steps 100 in the riding space is used as a reference.

[0034] In this embodiment, the step 100 includes a step body 10 and two groups of guide members 20 disposed on the left and right sides of the step body 10. The step body 10 includes a pedal 11, a kick plate 12 and a bracket 13. When the step body 10 is located in the riding space, the pedal 11 is a rectangular plate extending in the horizontal direction and can support a person to stand; the kick plate 12 is an arc-shaped plate extending in the up-down direction, and one side of the pedal 11 is connected to the upper side of the kick plate 12; the bracket 13 is connected between the other side of the pedal 11 and the lower side of the kick plate 12, and the bracket 13 has two groups disposed on the left and right sides of the pedal 11. In this way, the step body 10 is in the shape of a hollow triangular prism as a whole. In addition, the upper end of each group of brackets 13 can be connected to the driving wheel (not shown in the figure) of the escalator, and the lower end is provided with a driven wheel (not shown in the figure), so that the extension direction of the bracket 13 is roughly parallel to the running direction X of the escalator.

[0035] In this embodiment, a cylindrical mounting member 131 is fixedly provided on each of the left and right brackets 13. A cylindrical mounting hole extending in the left and right direction is provided in the mounting member 131. Each group of guide members 20 is correspondingly inserted into the mounting hole on the same side. It should be noted that there is no strict restriction on the installation position of the mounting member 131, and it can be located at any position of the bracket 13. In this embodiment, it is set on the side of the bracket 13 close to the driving wheel. The mounting members 131 on the left and right sides are preferably symmetrically arranged. In other embodiments, the mounting member 131 can also be set on the inner side of the pedal 11 or the kick plate 12, as long as it does not affect the passengers' riding.

[0036] See also Figures 4 to 7 As shown, each set of guide members 20 has an inserting portion 21 and a contact portion 22, wherein the contact portion 22 has a certain thickness. Along the left-right direction of the step body 10, the contact portion 22 is located outside the inserting portion 21, and the contact portion 22 is located outside the step body 10, and at least part of the inserting portion 21 is fixedly inserted in the mounting hole on the same side.

[0037] In this embodiment, the apron plate 200 and the step body 10 are both made of metal materials, wherein the apron plate 200 is a stainless steel plate, the step body 10 is mainly made of aluminum alloy material, and the mounting member 131 is integrally formed on the corresponding bracket 13 through a die-casting process. On the other hand, each set of guide members 20 is integrally formed of an elastic material, and in this embodiment, nylon material is specifically used, which can be compressed and deformed to a certain extent while having sufficient hardness. When the step 100 is located in the riding space, on each left and right side of the step 100, the contact portion 22 of the guide member 20 abuts between the step body 10 and the apron plate 200 on the same side. The contact portion 22 can not only bear the pressure of the collision between the step body 10 and the apron plate 200, but also form a buffer to reduce shaking and abnormal noise. In addition, since the guide members 20 on the left and right sides are symmetrically arranged, it can provide guidance for the operation of the step 100, so that the step body 10 is always located in the middle position with a gap between the left and right apron plates 200, and maintains stable operation.

[0038] See also Figures 8 to 11 As shown, the plug-in portion 21 has a limiting structure for limiting its detachment from the mounting hole, and the contact portion 22 is provided with a plurality of accommodating grooves spaced apart on one side away from the plug-in portion 21, and the plurality of accommodating grooves are interconnected, so as to further reduce the contact area between the step 100 and the apron plate 200 and reduce friction resistance.

[0039] Specifically, in each group of guide members 20, the contact portion 22 is roughly in the shape of a flat elliptical column, and the receiving groove includes a strip groove 221, an annular groove 222 and a central groove 223. Among them, the strip groove 221 has a plurality of strip grooves 221 arranged at intervals, and the extension directions of the plurality of strip grooves 221 are parallel to each other and are all parallel to the extension direction of the bracket 13, that is, parallel to the running direction X, thereby further reducing friction and noise. The annular groove 222 extends along the circumference of the contact portion 22, and is in the shape of an elliptical ring, and the annular groove 222 connects all the strip grooves 221. The central groove 223 is located in the middle of the contact portion 22, and the central groove 223 is directly connected to at least part of the strip grooves 221 (the strip groove 221 close to the middle), so that all the strip grooves 221, the annular groove 222, and the central groove 223 are actually connected to each other. Moreover, along the thickness direction of the contact portion 22, the depth of the central groove 223 is the largest, and the depths of the strip groove 221 and the annular groove 222 are equal. Grease is stored in each receiving groove, and the deepest central groove 223 stores the most grease, which can prevent the grease of the contact portion 22 from being squeezed out during operation. Due to the slow fluidity of the grease, the contact surface between the contact portion 22 and the apron plate 200 can be kept wetted with grease, and the interconnected receiving grooves can effectively introduce the grease in the central groove 223 into the entire end surface of the contact portion 22, so that the entire contact portion 22 is always in an infiltrated state, further reducing the friction resistance between the guide member 20 and the apron plate 200.

[0040] In this embodiment, the plug-in portion 21 extends in the left-right direction as a whole, and includes a central column 211 extending in the left-right direction. The limiting structure includes a convex column and a hook 213 provided on the central column 211. Among them, there are four convex columns 212 evenly spaced along the circumference of the central column 211, and each convex column 212 extends along the axial direction of the central column 211. In the radial direction of the central column 211, the width of each convex column 212 gradually decreases from the inside to the outside. Fig.11 As shown, from any cross section of the central column 211, each boss 212 is roughly an isosceles triangle with the base facing the central column 211. The outer diameter of the multiple bosses 212 is larger than the diameter of the mounting hole, so that the multiple bosses 212 can be inserted into the mounting hole with damping fit.

[0041] In the left-right direction of the step body 10, the hook 213 is located inside the center column 211. There are two hooks 213 spaced apart in the radial direction of the center column 211, and each hook 213 also extends in the left-right direction. Each hook 213 has a hook portion 2131 at one end away from the center column 211, and the hook portion 2131 protrudes outward in the radial direction of the center column 211. When the center column 211 and the boss 212 are inserted into the mounting hole, in the left-right direction of the step body 10, the two hook portions 2131 are located inside the mounting hole and abut against the mounting member 131.

[0042] In this way, through its own elastic deformation, the plug-in part 21 of each group of guide members 20 can be inserted into the corresponding mounting hole from the outside to the inside. Through the deformation of multiple protrusions 212, the entire plug-in part 21 can be firmly clamped to prevent the guide member 20 from loosening during long-term operation; and the hook part 2131 of the hook 213 is hooked on the bottom of the mounting member 131, which can prevent the guide member 20 from falling off from the inside, thereby playing a secondary protection role.

[0043] In summary, in the escalator of this embodiment, the guide member 20 on the step 100 reduces the contact area between the step 100 and the apron plate 200. In addition, there is always grease in the receiving groove, which can effectively reduce the noise generated by the friction between the guide member 20 and the apron plate 200, improve the smoothness of the operation of the step 100, and increase the riding comfort.

[0044] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it. They cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. An escalator step, comprising a step body, characterized in that: The left and right sides of the step body are respectively provided with mounting holes, the step further comprising a guide member arranged on the step body, the guide member having two groups arranged on the left and right sides of the step body, each group of the guide members having a plug-in portion and a contact portion, along the left and right directions of the step body, the contact portion is located on the outside of the plug-in portion, and the contact portion is located on the outside of the step body, at least part of the plug-in portion is inserted into the mounting hole on the same side, the plug-in portion has a limiting structure for limiting the plug-in portion from being separated from the mounting hole, and a plurality of accommodating grooves are spaced apart on a side of the contact portion away from the plug-in portion, and the plurality of accommodating grooves are connected to each other; In each group of the guide members, the accommodating groove includes a plurality of strip grooves arranged at intervals, the extension directions of the plurality of strip grooves are parallel to each other, and the accommodating groove also includes an annular groove, the annular groove extends along the circumference of the contact portion, and the annular groove connects all the strip grooves; The step body comprises a pedal, a kick plate and a bracket, one side of the pedal is connected to one side of the kick plate, the bracket is connected between the other side of the pedal and the other side of the kick plate, the mounting hole is arranged on the bracket, and the extension direction of each of the strip grooves is parallel to the extension direction of the bracket; The accommodating groove also includes a central groove, which is located in the middle of the contact portion and is directly connected to at least part of the strip grooves. Along the thickness direction of the contact portion, the depth of the central groove is greater than the depth of the strip grooves. Grease is stored in the strip grooves, the annular grooves, and the central groove.

2. The escalator step according to claim 1, characterized in that: Each group of guide members is made of elastic material in one piece.

3. The step of the escalator according to claim 1, characterized in that: The plug-in portion includes a center column, and the limiting structure includes a convex column. The convex column has a plurality of convex columns arranged at intervals along the circumference of the center column, and each of the convex columns extends axially along the center column. The plug-in portion is made of elastic material, and the outer diameter of the circumference formed by the plurality of convex columns is larger than the diameter of the mounting hole. The plurality of convex columns are inserted into the mounting hole in a damping-fitting manner.

4. The escalator step according to claim 3, characterized in that: The number of the protruding columns is at least three and is evenly spaced along the circumference of the central column; and / or, along the radial direction of the central column, the width of each of the protruding columns gradually decreases from the inside to the outside.

5. The escalator step according to claim 1, characterized in that: The plug-in portion includes a center column, and the limiting structure includes a hook. Along the left and right directions of the step body, the hook is located on the inner side of the center column. The hook has at least two hooks arranged at radial intervals along the center column, and each of the hooks has a hook portion at an end away from the center column, and the hook portion protrudes outward radially along the center column. The hook is made of elastic material, and the center column is inserted in the mounting hole. Along the left and right directions of the step body, the hook portions are located on the inner side of the mounting hole and abut against the step body.

6. A guide member for a step body of an escalator step according to any one of claims 1 to 5.

7. An escalator, comprising an escalator frame having a riding space, the escalator frame comprising a skirt plate, the skirt plate having two groups arranged on the left and right sides of the riding space, characterized in that: The escalator also includes a step as described in any one of claims 1 to 5, the apron plate and the step body are both made of metal material, and when the step is located in the riding space, on each left and right side of the step, the contact portion abuts between the step body and the apron plate on the same side.

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