Adjustable rail system for escalator

Abstract

An adjustable rail system for an escalator, and an escalator comprising the adjustable rail system. The adjustable rail system comprises one or more adjustable brackets (10). Each adjustable bracket (10) comprises an upper portion (11) and lower portions (12), the upper portion (11) is provided with a cross beam mounting portion (141) for being mounted to a cross beam of a truss of an escalator, and each lower portion (12) is provided with a first guide rail support portion (121) and a second guide rail support portion (122) respectively used for supporting a return side step wheel guide rail (61) and a return side step chain sprocket guide rail (62) of the escalator, wherein the upper portion (11) and the lower portion (12) can be connected to each other at a plurality of positions, so that the distance between the first guide rail support portion (121) and the second guide rail support portion (122) of the lower portion (12) and the cross beam mounting portion (141) of the upper portion (11) is adjustable.

Description

Adjustable track system for escalator TECHNICAL FIELD

[0001] The present application belongs to the technical field of escalators, in particular, the field of escalator modification, and specifically relates to an adjustable track system for the modification of escalators. BACKGROUND

[0002] Escalators are widely used in places such as shopping malls, airports, and subway stations, providing great convenience for people's travel. However, with the development and progress of society, the performance, safety, and energy efficiency of escalators also face higher requirements. Therefore, the demand for the modification of old escalators is increasingly significant.

[0003] In many cases, during the modification process, all old escalator components are removed, leaving only the truss of the escalator, and providing a new ladder system on the basis of the old truss.

[0004] However, there are many types of old escalators, and their trusses vary in size and structure. During the modification process, engineers need to design and manufacture specific specifications of track systems and related components and modules according to the specific size of the old escalator to ensure that the new track system can be stably and safely installed on the old truss. For example, in some old escalators, such as those with the drive station located in the inclined truss, due to the large height of the cross beam, the conventional fixed-pitch track system cannot directly span it, which requires the manufacture of specific components, resulting in not only an increase in processing costs but also the need for more research and design resources.

[0005] Therefore, how to reduce the modification cost and improve the modification efficiency while ensuring the modification quality has become a technical problem to be solved in the current escalator modification field.

[0006] SUMMARY

[0007] The present application addresses the above-mentioned problems and needs and proposes a new type of adjustable track system, which can meet all heights of cross beams due to the adoption of the following technical features, thereby solving the above-mentioned problems and bringing other technical effects.

[0008] The present disclosure first proposes an adjustable track system for an escalator, comprising one or more adjustable brackets, the adjustable bracket comprising an upper portion and a lower portion, the upper portion having a crossbeam mounting portion for mounting to a crossbeam of a truss of the escalator, the lower portion having a first rail support portion and a second rail support portion for supporting a return side step wheel rail and a return side step chain wheel rail of the escalator respectively. Wherein the upper portion and the lower portion are connectable to each other at a plurality of positions, so that the distance between the first rail support portion and the second rail support portion of the lower portion and the crossbeam mounting portion of the upper portion is adjustable.

[0009] According to a preferred arrangement, one of the upper portion and the lower portion has a plurality of or a plurality of sets of mounting holes arranged at different heights, and the other of the upper portion and the lower portion has a matching hole for matching with each or each set of the plurality of or the plurality of sets of mounting holes.

[0010] According to a preferred arrangement, one of the upper portion and the lower portion has a plurality of sets of mounting holes arranged at different heights, each set of mounting holes comprising two mounting holes at the same height, and the other of the upper portion and the lower portion has two matching holes for matching with the two mounting holes.

[0011] According to a preferred arrangement, one of the upper portion and the lower portion has a strip-shaped mounting slot extending along the height direction of the upper portion, and the other of the upper portion and the lower portion has two matching holes for matching with the strip-shaped mounting slot.

[0012] According to a preferred arrangement, the one or more adjustable brackets are middle adjustable brackets configured for a middle section of the escalator, wherein the upper portion further has a third rail support portion and a fourth rail support portion for supporting a passenger side step wheel rail and a passenger side step chain wheel rail of the escalator respectively.

[0013] According to a preferred arrangement, the adjustable track system further has at least one sliding adjustment bracket for a lower section of the escalator, the sliding adjustment bracket being configured to slide in a horizontal direction relative to the escalator; the sliding adjustment bracket having a sliding adjustment bracket first support portion, a sliding adjustment bracket second support portion and a sliding adjustment bracket third support portion for supporting the return side step wheel rail, the pressure rail and the return side step chain wheel rail respectively.

[0014] According to a preferred arrangement, the adjustable track system further has a sliding track structure configured for being fixed to a side plate at the lower section of the escalator and having a sliding groove, wherein the sliding adjustment bracket is mounted to slide along the sliding groove of the sliding track structure.

[0015] According to a preferred aspect, the adjustable rail system further has at least one fixed bracket for the lower section of the escalator, the fixed bracket having a fixed bracket first support portion, a fixed bracket second support portion and a fixed bracket third support portion for supporting the return side step wheel rail and the return side step chain wheel rail, respectively.

[0016] According to a preferred aspect, the fixed bracket is mounted at a curved position in the lower section of the escalator, closer to the middle section of the escalator than the sliding adjustment bracket.

[0017] According to a preferred aspect, the adjustable rail system further has at least one lower section adjustment bracket for the lower section of the escalator, the lower section adjustment bracket having an upper portion and a lower portion, the upper portion having a lower side panel mounting portion for mounting to a side panel at the lower section of the escalator, the lower portion having a first support portion and a second support portion for supporting the return side step wheel rail and the return side step chain wheel rail of the escalator, respectively; wherein the upper portion and the lower portion are connectable to each other at a plurality of positions such that a distance between the first support portion and the second support portion of the lower portion and the lower side panel mounting portion of the upper portion is adjustable.

[0018] According to a preferred aspect, the adjustable rail system further has a number of upper section adjustment brackets for the upper section of the escalator, each upper section adjustment bracket having an upper end portion and a lower end portion, the upper end portion having an upper side panel mounting portion for mounting to a side panel at the upper section of the escalator, the lower end portion having a first support portion and a second support portion for supporting the return side step wheel rail and the return side step chain wheel rail of the escalator, respectively; wherein the upper end portion and the lower end portion are connectable to each other at a plurality of positions such that a distance between the first support portion and the second support portion of the lower end portion and the upper side panel mounting portion of the upper end portion is adjustable.

[0019] The present disclosure also proposes an escalator having the adjustable rail system as described in any of the preceding.

[0020] The preferred embodiments of the present application will be described in more detail with reference to the drawings, so that the features and advantages of the present application can be easily understood. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments of the present application will be briefly introduced hereinafter. The drawings merely serve to show some embodiments of the present application, and the present application is not limited to the embodiments shown in the drawings.

[0022] Fig. 1 shows an exemplary embodiment of the adjustable bracket for the middle section of the escalator proposed by the present disclosure;

[0023] Fig. 2 shows the adjustable bracket of Fig. 1 from another perspective;

[0024] Fig. 3 shows an overall view of an escalator employing the adjustable rail system of the present disclosure;

[0025] Fig. 4 shows a schematic view of a middle section of an escalator employing the adjustable rail system of the present disclosure;

[0026] Fig. 5 shows a schematic view of a lower section of an escalator employing the adjustable rail system of the present disclosure;

[0027] Fig. 6 shows a schematic view of the lower section of the escalator of Fig. 5 from another perspective;

[0028] Fig. 7 shows a schematic view of an upper section of an escalator employing the adjustable rail system of the present disclosure.

[0029] List of reference signs

[0030] 10 adjustable bracket

[0031] 11 upper portion

[0032] 111 third rail support portion

[0033] 112 fourth rail support portion

[0034] 12 lower portion

[0035] 121 first rail support portion

[0036] 122 second rail support portion

[0037] 123 mounting hole

[0038] 131 fitting hole

[0039] 13 rod portion

[0040] 14 connecting portion

[0041] 141 cross member mounting portion

[0042] 20 sliding adjustment bracket

[0043] 21 first sliding adjustment bracket support portion

[0044] 22 second sliding adjustment bracket support portion

[0045] 23 third sliding adjustment bracket support portion

[0046] 24 sliding rail structure

[0047] 30 fixed bracket

[0048] 31 first fixed bracket support portion

[0049] 32 fixed frame second support part

[0050] 33 fixed frame third support part

[0051] 40 lower section adjustment bracket

[0052] 41 upper part

[0053] 411 lower side panel mounting part

[0054] 42 lower part

[0055] 421 First Supporting Part

[0056] 422 second support part

[0057] 50 upper section adjustment frame

[0058] 51 First support part

[0059] 52 Second support part

[0060] 53 upper side panel mounting portion

[0061] 61 return side step wheel guide rail

[0062] 62 return side step sprocket guide rail

[0063] 63 rail pressure

[0064] 64 side panels DETAILED DESCRIPTION

[0065] In order to make the purpose, technical solution and advantages of the technical solution of the present disclosure clearer, the technical solution of the embodiment of the present disclosure will be clearly and completely described below in conjunction with the drawings of the specific embodiments of the present disclosure. The same figure marks in the drawings represent the same parts. It should be noted that the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0066] The present disclosure provides an adjustable track system for escalator retrofits. The adjustable track system is particularly suitable for retrofits where new escalator components are installed while retaining the existing escalator trusses. The adjustable track system is adaptable to various types of escalator trusses.

[0067] The following first introduces the basic structure and components of an escalator. However, the adjustable track system of the present disclosure can be applied to escalators that are different from the following description.

[0068] An escalator may include handrails, trusses, steps, guide rail systems, transmission systems, electrical systems, etc.

[0069] The truss of an escalator is its primary load-bearing structure, carrying both the escalator's own weight and the loads of passengers. The truss connects two floors at different heights and is generally composed of an upper horizontal section, a lower horizontal section, and an intermediate inclined section. The inclined section can be divided into several sections, rigidly connected by high-strength bolts. The truss houses various escalator components, such as the drive unit, control system, handrails, and steps. The truss is composed of multiple beam components, with crossbeams being the load-bearing members arranged transversely within the truss, connecting the two sides of the truss and providing lateral support. Crossbeams are typically made of high-strength steel, offering excellent load-bearing capacity and bending stiffness. Crossbeam heights vary for different escalator models. Escalator renovations often require the design of a new track system, or parts of it, such as the associated support system, tailored to the specific height of the crossbeam. This can introduce significant difficulties and additional costs to escalator renovations.

[0070] The steps are the moving platforms on an escalator where passengers stand. The guide rail system guides the movement of the steps and handrails, ensuring they follow the intended path. The guide rail system includes passenger-side guide rails and return-side guide rails. The passenger-side guide rails are installed on the passenger side of the escalator, i.e., the side facing the direction of travel, while the return-side guide rails are located on the return side of the escalator, i.e., the side facing away from the direction of travel, and are hidden within the escalator's internal structure. Both the passenger-side and return-side guide rails include step wheel guides and step sprocket guides, referred to herein as the passenger-side step wheel guide, passenger-side step sprocket guide, return-side step wheel guide, and return-side step sprocket guide, respectively. The step wheel guides are the rail system used to support and guide the movement of the step wheels in an escalator. The step wheels are wheels installed at the bottom of the steps. They roll along the guide rails, allowing the steps to move smoothly up and down the inclined section of the escalator. The step sprocket guides are the guide rail system used in conjunction with the step sprockets. The step sprocket is connected to the steps via a chain, driving them along the escalator's path. The guide rail system also includes a pressure rail located in the lower section of the escalator, between the return step wheel guide and the return step sprocket guide. It primarily ensures the steps turn correctly at the upper turn.

[0071] The following describes the specific implementation of the adjustable track system disclosed in the present invention in conjunction with the accompanying drawings.

[0072] First, referring to Figures 1 and 2, which respectively show the adjustable bracket 10 for the middle section of an escalator proposed in the present disclosure from different perspectives. The application position of the adjustable bracket 10 in the escalator can be seen in Figures 3 and 4.

[0073] Generally, the adjustable support 10 comprises an upper portion 11 and a lower portion 12 which are positionally adjustable relative to each other. The upper portion 11 can generally be in the shape of H. The upper portion 11 can be in one-piece structure or in split structure. In the embodiment shown in the drawings, the upper portion 11 is in split structure, comprising two substantially parallel arranged bar portions 13 on two sides, and a connecting portion 14 connecting the two bar portions 13 in the middle region of the two bar portions 13. The connecting portion 14 can have the shape of H to increase the connecting area with the bar portions 13 for more secure connection and fixation.

[0074] The upper portion 11 has a cross beam mounting portion 141. The cross beam mounting portion 141 is a structure extending transversely in the upper portion 11, which can be in the form of a bar or a plate. In the embodiment shown in the drawings, the cross beam mounting portion 141 is the horizontal portion of the connecting portion 14. Preferably, the cross beam mounting portion 141 has two plate shaped portions at right angles to each other to enhance the structure and increase the connecting area with the cross beam of the truss. The cross beam mounting portion 141 of the adjustable support 10 is used for mounting to the cross beam of the truss of the escalator, which can be fixed to the cross beam of the truss by fasteners such as bolts. The two bar portions 13 of the adjustable support 10 are respectively mounted on two sides of the escalator.

[0075] The lower portion 12 has a first rail support portion 121 and a second rail support portion 122 for supporting the return side step wheel rail 61 and the return side step chain wheel rail 62 of the escalator respectively. Referring to the drawings, the first rail support portion 121 and the second rail support portion 122 are respectively the upper surfaces of the structures extending laterally from the lower portion 12, which form the support surfaces for the corresponding rails. Of course, the first rail support portion 121 and the second rail support portion 122 can also be in other structural forms as long as they can fix and support the first rail support portion 121 and the second rail support portion 122. In the vicinity of the first rail support portion 121 and the second rail support portion 122, mounting holes 123 or mounting slots can also be provided to fix the first rail support portion 121, the second rail support portion 122 and the corresponding return side step wheel rail 61, return side step chain wheel rail 62 together by additional fasteners. In the embodiment shown in the drawings, the lower portion of the first rail support portion 121 is provided with an elongated mounting hole 123, and the lower portion of the second rail support portion 122 is provided with an elongated mounting slot. In other embodiments, other forms of rail support portions and mounting structures can be adopted.

[0076] Wherein, the upper portion 11 and the lower portion 12 are connectable to each other at multiple positions so that the distance between the first rail support 121 and the second rail support 122 of the lower portion 12 and the beam mounting portion 141 of the upper portion 11 is adjustable. With such a feature, the adjustable bracket 10 provides a flexible adjustment mechanism during escalator retrofitting, with wide applicability: if the beam in the old escalator truss is too high, the lower portion 12 of the adjustable bracket 10 can be fixed to a lower position of the upper portion 11; if the beam in the old escalator truss is too low, the lower portion 12 of the adjustable bracket 10 can be fixed to a higher position of the upper portion 11.

[0077] Preferably, one of the upper portion 11 and the lower portion 12 has several or several groups of mounting holes 123 arranged at different heights, and the other of the upper portion 11 and the lower portion 12 has matching holes 131 for cooperating with each or each group of mounting holes 123. More preferably, one of the upper portion 11 and the lower portion 12 has several groups of mounting holes 123 arranged at different heights, each group of mounting holes 123 including two mounting holes 123 at the same height, and the other of the upper portion 11 and the lower portion 12 has two matching holes 131 for cooperating with the two mounting holes 123. Wherein, in the exemplary embodiments of Figures 1 and 2, several groups of mounting holes 123 are provided in the lower portion 12, each group of mounting holes 123 including two mounting holes 123 at the same height; in the upper portion 11, more specifically, two matching holes 131 are provided at the lower end of the rod portion 13 of the upper portion 11.

[0078] In an embodiment not shown, the two matching holes 131 can be replaced by a matching slot extending transversely.

[0079] In another embodiment not shown, the mounting holes 123 arranged at different heights can be replaced by a strip-shaped mounting slot extending in the height direction for a certain length. That is, one of the upper portion 11 and the lower portion 12 has a strip-shaped mounting slot extending in the height direction of the upper portion 11, and the other of the upper portion 11 and the lower portion 12 has two matching holes 131 for cooperating with the strip-shaped mounting slot.

[0080] In use, the relative positions of the upper portion 11 and the lower portion 12 are first determined and the appropriate holes or slots are aligned together, and then a fastener such as a bolt can be passed through the aligned holes or slots of the upper portion 11 and the lower portion 12 at the same time to fix the upper portion 11 and the lower portion 12 together.

[0081] By setting a plurality of fitting holes or fitting grooves, both the adjustability between the upper part 11 and the lower part 12 can be realized, and a simple structure and low processing cost can be maintained.

[0082] Figure 3 shows an overall view of an escalator employing the adjustable rail system of the present disclosure. For the convenience of discussion, the escalator is divided into three sections in the present disclosure, which are referred to as the upper section, the lower section and the middle section. Among them, the middle section refers to the section of the escalator that extends approximately straight, the upper section refers to the section above the middle section including the curved section and the horizontal section, and the lower section refers to the section below the middle section including the curved section and the horizontal section. Among them, the adjustable rail system of the present disclosure includes a plurality of types of supports designed specifically for each section of the escalator, ensuring that the system can flexibly adapt to various renovation needs, while effectively simplifying the installation process and improving construction efficiency.

[0083] Among them, as shown in Figure 3, five adjustable supports 10 described above are provided at the middle section of the escalator. It can be understood that any other number of adjustable supports 10 can be provided according to specific circumstances. In addition, Figure 4 shows the middle section of the escalator and the adjustable support 10 there in an enlarged view, from which it can be seen that the return side step wheel guide rail 61 and the return side step sprocket guide rail 62 are respectively supported by the first guide rail support part 121 and the second guide rail support part 122 of the adjustable support 10, and the crossbeam of the truss is fixed together with the crossbeam mounting part 141 of the adjustable support 10. Among them, preferably, the adjustable support 10 also supports the passenger side step wheel guide rail and the passenger side step sprocket guide rail of the escalator through the third guide rail support part 111 and the fourth guide rail support part 112 in each upper part 11 thereof. The specific structure of the third guide rail support part 111 and the fourth guide rail support part 112 can be seen from Figure 2, which are support surfaces extending from the upper part 11. In an embodiment not shown, the third guide rail support part 111 and the fourth guide rail support part 112 can also be other structural forms, as long as they can fix and support the passenger side step wheel guide rail and the passenger side step sprocket guide rail. Among them, mounting holes 123 or mounting grooves can also be provided near the third guide rail support part 111 and the fourth guide rail support part 112 to fix them together with the corresponding passenger side step wheel guide rail and passenger side step sprocket guide rail through additional fasteners. In the embodiment shown in Figure 2, an elongated mounting hole is provided below the third guide rail support part 111 and the fourth guide rail support part 112.

[0084] The support structure of the present adjustable rail system for the lower section of the escalator is described below in connection with Figures 3, 5 and 6.

[0085] The support structure for the lower section of the escalator of the adjustable track system first comprises one or more slide adjustment frames 20. In the embodiment of Fig. 3, two slide adjustment frames 20 are employed. However, in other applications, other numbers of slide adjustment frames 20 can be employed.

[0086] The slide adjustment frame 20 is generally plate-shaped, mounted at the side of the escalator, with the main plane of the plate extending in the transverse direction of the escalator. The slide adjustment frame 20 has a slide adjustment frame first support portion 21, a slide adjustment frame second support portion 22 and a slide adjustment frame third support portion 23 for supporting the return side step wheel guide rail 61, the pressure rail 63 and the return side step chain wheel guide rail 62, respectively. The support portions are not limited in form and can be, for example, support planes, support frames, support plates, support grooves, etc., and the slide adjustment frame 20 can include mounting structures near each support portion to further secure the corresponding rails.

[0087] The slide adjustment frame 20 is configured to slide in the horizontal direction relative to the escalator. Specifically, it can slide with the slide track structure 24 of the adjustable track system. The slide track structure 24 can be, for example, a plate-shaped structure or a track structure configured to be fixed to the side plate 64 at the lower section of the escalator and having a slide groove, such as a C-shaped groove. The corresponding structure portion of the slide adjustment frame 20 is mounted into the slide groove and can slide along it.

[0088] The slide adjustment frame 20 supports the return side step wheel guide rail 61, the pressure rail 63 and the return side step chain wheel guide rail 62 at the lower section of the escalator. By sliding the slide adjustment frame 20 in the horizontal direction relative to the escalator, the heights of the return side step wheel guide rail 61, the pressure rail 63 and the return side step chain wheel guide rail 62 can be adjusted. For example, in the orientation of Fig. 5, by sliding the slide adjustment frame 20 horizontally to the right, the return side step wheel guide rail 61, the pressure rail 63 and the return side step chain wheel guide rail 62 will be appropriately moved downward to the position effectively supported by the slide adjustment frame 20; conversely, these rails will be moved upward to the position effectively supported by the slide adjustment frame 20. In the adjustment process, the curved states of these rails are also adjusted accordingly.

[0089] It can be seen that, by the slide adjustment frame 20, the position adjustment and the adjustment of the curved form of the return side step wheel guide rail 61, the pressure rail 63 and the return side step chain wheel guide rail 62 can be easily achieved with simple operations.

[0090] The support structure for the lower section of the escalator of the adjustable track system further comprises one or more fixed frames 30. In the embodiment of Fig. 3, three fixed frames 30 are employed. However, in other applications, other numbers of fixed frames 30 can be employed.

[0091] The fixing frame 30 is generally plate-shaped, and is installed at the side of the escalator, with the main plane of the plate extending in the lateral direction of the escalator. The fixing frame 30 has a fixing frame first support portion 31, a fixing frame second support portion 32, and a fixing frame third support portion 33 for supporting the return side step wheel guide rail 61, the return side step chain wheel guide rail 62, and the pressure rail 63, respectively. The specific forms of these support portions are not limited, and can be, for example, support planes, support frames, support plates, support grooves, etc., and the fixing frame 30 can include installation structures or installation portions near each support portion to further fix the corresponding rail.

[0092] Through the fixing frame 30, the relative positions of the return side step wheel guide rail 61, the return side step chain wheel guide rail 62, and the pressure rail 63 can be fixed simply and effectively. The fixing frame 30 is preferably installed at the curved position of the lower section of the escalator, closer to the middle section of the escalator than the sliding adjustment frame 20. The cooperation of the fixing frame 30 and the sliding adjustment frame 20 further helps to simply and conveniently adjust the positions and curved forms of the return side step wheel guide rail 61, the pressure rail 63, and the return side step chain wheel guide rail 62 to the appropriate state.

[0093] The support structure of the adjustable rail system for the lower section of the escalator further includes one or more adjustable supports, which are referred to as lower section adjustment supports 40 for distinction. In the embodiment of FIG. 3, one lower section adjustment support 40 is used. However, in other applications, other numbers of lower section adjustment supports 40 can be used.

[0094] The lower section adjustment support 40 has an upper portion 41 and a lower portion 42 that are positionally adjustable relative to each other. The upper portion 41 and the lower portion 42 can each be plate-shaped, and are installed at the side of the escalator, with the main plane of the plate extending in the lateral direction of the escalator. The upper portion 41 has a lower side plate installation portion 411 for installation to the lower side plate 64 at the lower section of the escalator, and the lower portion 42 has a first support portion 421 and a second support portion 422 for supporting the return side step wheel guide rail 61 and the return side step chain wheel guide rail 62 of the escalator, respectively. The specific structures of the first support portion 421 and the second support portion 422 are not limited, and can be, for example, support surfaces of the main body portion of the lower section adjustment support 40, or support surfaces of additional support members installed to the main body portion of the lower section adjustment support 40.

[0095] The upper portion 41 and the lower portion 42 of the lower section adjustment support 40 can be connected to each other at multiple positions, so that the distance between the first support portion 421 and the second support portion 422 of the lower portion 42 and the lower side plate installation portion 411 of the upper portion 41 is adjustable. By adjusting the upper portion 41 and the lower portion 42 of the lower section adjustment support 40 to appropriate relative positions, the return side step wheel guide rail 61 and the return side step chain wheel guide rail 62 can be brought to the desired appropriate positions relative to the side plate 64 of the escalator.

[0096] The use of the lower section adjustment bracket 40, especially the use of the lower section adjustment bracket 40 in combination with the sliding adjustment bracket 20 and the fixed bracket 30, provides great flexibility and wide applicability for escalator retrofitting.

[0097] The bracket structure of the adjustable track system for the upper section of the escalator is described below in connection with FIG. 3 and FIG. 7. The bracket structure of the adjustable track system for the upper section of the escalator mainly comprises one or more upper section adjustment brackets 50. In the embodiment of FIG. 3, four upper section adjustment brackets 50 are adopted. However, in other applications, other numbers of upper section adjustment brackets 50 can be adopted.

[0098] Each upper section adjustment bracket 50 has an upper end portion and a lower end portion which are positionally adjustable relative to each other. Both the upper end portion and the lower end portion can be plate-like structures installed at the side of the escalator with the main plane of the plate extending in the transverse direction of the escalator. The upper end portion has an upper side plate mounting portion 53 for mounting to the upper side plate 64 at the upper section of the escalator, and the lower end portion has a first support portion 51 and a second support portion 52 for supporting the return side step wheel guide rail 61 and the return side step chain wheel guide rail 62 of the escalator, respectively. The first support portion 51 and the second support portion 52 are support functional structures, such as support surfaces located on the main body portion of the lower end portion of the upper section adjustment bracket 50, or support portions of additional support members.

[0099] The upper end portion and the lower end portion of the upper section adjustment bracket 50 are connectable to each other at multiple positions so that the distance between the first support portion 51 and the second support portion 52 of the lower end portion and the upper side plate mounting portion 53 of the upper end portion is adjustable. By adjusting the upper end portion and the lower end portion of the upper section adjustment bracket 50 to appropriate relative positions, the return side step wheel guide rail 61 and the return side step chain wheel guide rail 62 at the upper section of the escalator can be brought to the desired appropriate positions relative to the side plate 64 of the escalator.

[0100] The upper section adjustment bracket 50 is preferably used at the curved portion of the upper section of the escalator, which can achieve precise support of the curved portion of the upper section of the escalator, thereby effectively improving the overall stability of the escalator.

[0101] The adjustable rail system of the present disclosure has good effects in the renovation of escalators. On the one hand, the adjustable rail system can significantly improve the flexibility of escalator renovation. It has various types of supports that cooperate with each other, and no matter what type and size of escalator is to be renovated, it can be accurately adapted to different sections of the escalator. This makes it easy to deal with various complex scenarios during escalator renovation and meet different renovation needs. Secondly, the adjustable rail system helps to simplify the installation process of the escalator and reduce the installation difficulty. Due to the adjustability of the supports, the installer can make quick and accurate adjustments according to the actual situation, thereby greatly shortening the installation time and improving the construction efficiency. Thirdly, the adjustable rail system can also enhance the stability and safety of the escalator. By accurately adjusting the position and angle of the supports, it can ensure that the escalator runs smoothly and stably, reducing failures and safety hazards caused by improper installation or aging. Finally, from an economic point of view, the application of the adjustable rail system can also help to reduce the cost of escalator renovation.

[0102] Unless otherwise defined, technical terms or scientific terms used herein shall have the ordinary meaning of a person skilled in the art to which the present disclosure belongs. The use of "first", "second" and similar words in the specification and claims of the present patent application does not indicate any order, quantity or importance, but is only used to distinguish different components. Similarly, "one" or "a" and similar words do not necessarily mean a quantity limit. "Include" or "contain" and similar words mean that the elements or objects before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connected" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent relative positional relationships, and when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0103] The exemplary embodiments of the water pump proposed by the present disclosure are described in detail above with reference to the preferred embodiments, however, those skilled in the art can understand that various modifications and improvements can be made to the above specific embodiments without departing from the concept of the present disclosure, and various technical features and structures proposed by the present disclosure can be combined without exceeding the protection scope of the present disclosure, and the protection scope of the present disclosure is determined by the appended claims.

Claims

1. An adjustable track system for escalators, The invention relates to an escalator comprising one or more adjustable brackets (10), wherein the adjustable bracket (10) comprises an upper portion (11) and a lower portion (12), wherein the upper portion (11) has a crossbeam mounting portion (141) for mounting to a crossbeam of a truss of an escalator, and the lower portion (12) has a first guide rail support portion (121) and a second guide rail support portion (122) for supporting a return-side step wheel guide rail (61) and a return-side step sprocket guide rail (62) of the escalator, respectively. in, The upper portion (11) and the lower portion (12) can be connected to each other at multiple locations so that the distance between the first guide rail support portion (121) and the second guide rail support portion (122) of the lower portion (12) and the crossbeam mounting portion (141) of the upper portion (11) is adjustable.

2. The adjustable track system of claim 1, wherein: One of the upper part (11) and the lower part (12) has several or several groups of mounting holes (123) arranged at different heights, and the other of the upper part (11) and the lower part (12) has a matching hole (131) for matching with each or each group of mounting holes (123) in the several or several groups of mounting holes (123).

3. The adjustable track system of claim 2, wherein: One of the upper part (11) and the lower part (12) has several groups of mounting holes (123) arranged at different heights, each group of mounting holes (123) includes two mounting holes (123) located at the same height, and the other of the upper part (11) and the lower part (12) has two matching holes (131) for matching with the two mounting holes (123).

4. The adjustable track system of claim 1, wherein: One of the upper part (11) and the lower part (12) has a strip-shaped mounting groove extending along the height direction of the upper part (11), and the other of the upper part (11) and the lower part (12) has two matching holes (131) for matching with the strip-shaped mounting groove.

5. The adjustable track system of claim 1, wherein: The one or more adjustable brackets (10) are intermediate adjustable brackets (10) configured for an intermediate section of an escalator, wherein the upper portion (11) further comprises a third guide rail support portion (111) and a fourth guide rail support portion (112) for supporting a passenger-side step wheel guide rail and a passenger-side step sprocket guide rail of the escalator, respectively.

6. The adjustable track system of claim 1, wherein: The adjustable rail system further comprises at least one sliding adjustment frame (20) for the lower section of the escalator, wherein the sliding adjustment frame (20) is configured to slide in a horizontal direction relative to the escalator; The sliding adjustment frame (20) comprises a first sliding adjustment frame support portion (21), a second sliding adjustment frame support portion (22) and a third sliding adjustment frame support portion (23) for supporting the return side step wheel guide rail, the pressure rail (63) and the return side step sprocket guide rail respectively.

7. The adjustable track system of claim 6, wherein: The adjustable track system further has a sliding track structure (24) configured to be fixed to a side panel (64) at a lower section of the escalator and having a sliding slot. Wherein, the sliding adjustment frame (20) is installed to slide along the sliding groove of the sliding track structure (24).

8. The adjustable track system of claim 6, wherein: The adjustable rail system also has at least one fixed frame (30) for the lower section of the escalator, the fixed frame (30) having a fixed frame first support portion (31), a fixed frame second support portion (32) and a fixed frame third support portion (33) for supporting a return-side step wheel guide rail and a return-side step sprocket guide rail, respectively.

9. The adjustable track system of claim 8, wherein: The fixed frame (30) is installed at a curved position in the lower section of the escalator, closer to the middle section of the escalator than the sliding adjustment frame (20).

10. The adjustable track system of claim 1, wherein: The adjustable rail system further comprises at least one lower section adjusting bracket (40) for the lower section of the escalator, the lower section adjusting bracket (40) comprising an upper portion (41) and a lower portion (42), the upper portion (41) comprising a lower side plate mounting portion (411) for mounting to a side plate (64) at the lower section of the escalator, and the lower portion (42) comprising a first supporting portion (421) and a second supporting portion (422) for supporting a return side step wheel guide rail (61) and a return side step sprocket guide rail (62) of the escalator, respectively; The upper portion (41) and the lower portion (42) can be connected to each other at multiple locations so that the distance between the first support portion (421) and the second support portion (422) of the lower portion (42) and the lower side plate mounting portion (411) of the upper portion (41) is adjustable.

11. The adjustable track system of claim 1 , wherein: The adjustable track system also has several upper section adjustment features for the upper section of the escalator. A frame (50), each upper section adjustment frame (50) having an upper end portion and a lower end portion, the upper end portion having an upper side plate mounting portion (53) for mounting to a side plate (64) at the upper section of the escalator, and the lower end portion having a first supporting portion (51) and a second supporting portion (52) for supporting a return side step wheel guide rail (61) and a return side step sprocket guide rail (62) of the escalator respectively; The upper and lower parts can be connected to each other at multiple locations so that the distance between the first supporting portion (51) and the second supporting portion (52) of the lower part and the upper side plate mounting portion (53) of the upper part is adjustable.

12. An escalator having the adjustable track system according to any one of claims 1 to 11.

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