Roller guide shoe device of home elevator

Abstract

The utility model relates to a roller guide shoe device of a home elevator, which is mounted on a counterweight frame of the elevator and comprises a base plate, a roller guide shoe, a roller guide shoe and a roller guide shoe, a pair of roller assemblies, each pair of roller assemblies being symmetrical to each other and spaced apart from each other by a predetermined distance, the roller assemblies being mounted to the base plate and configured to guide movement of the counterweight frame in a rolling manner; the rubber part is mounted on the base plate; wherein each roller assembly comprises a small-diameter roller, the rollers can rotate relative to the base plate, and the rotation axes of the rollers are parallel to each other and perpendicular to the base plate. The roller guide shoe device can guide the counterweight frame to move in a rolling mode, guide shoe oil does not need to be used for lubrication, operation noise is low, and the roller guide shoe device is quite environmentally friendly.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of household elevator, more specifically, a household elevator's roller guide shoe device installed on the counterweight frame of the elevator. BACKGROUND

[0002] With the development of society, the elevator has become an indispensable part of people. As we all know, the hoistway space of household elevator is small, so the counterweight often uses sliding guide shoes. The sliding guide shoes need to be lubricated with guide shoe oil, which is not friendly to the environment and has high operating noise.

[0003] At present, the counterweight roller guide shoes on the market are large size roller guide shoes, and household elevators are compact in space, so it is difficult to apply roller guide shoes.

[0004] Therefore, there is an urgent need for a roller guide shoe device that can be applied to household elevators.

[0005] The information disclosed in the background section of the utility model is only intended to increase the understanding of the overall background of the utility model, and should not be regarded as acknowledging or implying in any form that the information constitutes prior art known to those skilled in the art. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims to provide a household elevator roller guide shoe device, which can guide the movement of the counterweight frame in a rolling manner without using guide shoe oil lubrication, has low operating noise, and is very friendly to the environment.

[0007] According to one aspect of the utility model, a household elevator roller guide shoe device is provided, which is installed on the counterweight frame of the elevator, comprising: a base plate installed to the counterweight frame of the elevator; a pair of roller assemblies, each pair of roller assemblies is symmetrical to each other and spaced apart by a predetermined distance, the roller assembly is installed to the base plate and configured to guide the movement of the counterweight frame in a rolling manner; and a rubber piece installed on the base plate; wherein each roller assembly comprises a small diameter roller, the roller is rotatable relative to the base plate, and the rotation axes of the rollers are parallel to each other and perpendicular to the base plate.

[0008] The aforementioned household elevator roller guide shoe device, wherein the base plate can include a recess, a first mounting hole, a second mounting hole and a fixing hole, the first mounting hole, the second mounting hole and the fixing hole are symmetrically arranged on both sides of the recess; the pair of roller assemblies can be arranged as a pair, and the pair of roller assemblies are symmetrically mounted to the first mounting hole on both sides of the recess.

[0009] The roller guide device of the home elevator of the foregoing, wherein each roller assembly can further include: a roller shaft mounted to the first mounting hole, the roller shaft having a circular cross-section; a bearing having an inner circumferential surface mounted on an outer circumferential surface of the roller shaft; and a snap ring mounted on the roller shaft and abutting against one side of the bearing, the snap ring configured to limit movement of the bearing in a direction away from the base plate; wherein the roller has an annular cross-section, an outer circumferential surface of the bearing is mounted to an inner circumferential surface of the roller such that the roller is rotatably mounted to the roller shaft.

[0010] The roller guide device of the home elevator of the foregoing, wherein the roller shaft can include: a protrusion radially protruding formed on an outer circumferential surface of the roller shaft, the protrusion including a first end surface, an outer circumferential surface, and a second end surface, the outer circumferential surface of the protrusion including a plurality of side surfaces cooperating with each other to collectively form a loop around the roller shaft, the protrusion having a polygonal cross-section, the first end surface abutting against another side of the bearing in an axial direction and configured to limit movement of the bearing in a direction approaching the base plate, the second end surface abutting against the base plate in an axial direction; and a groove radially recessed formed on the outer circumferential surface of the roller shaft, the snap ring seated in the groove and partially protruding in a radial direction from the groove to abut against one side of the bearing in an axial direction.

[0011] The roller guide device of the home elevator of the foregoing, wherein the rubber member can be formed in a plate shape and seated in the recess of the base plate, the roller guide device can further include: an upper stopper located at an upper portion of the rubber member; and a lower stopper located at a lower portion of the rubber member; wherein the upper stopper and the lower stopper are configured to mount the rubber member to the recess of the base plate.

[0012] The roller guide device of the home elevator of the foregoing, wherein the upper stopper and the lower stopper are symmetrically disposed at the upper portion and the lower portion of the rubber member; the upper stopper includes an upper mounting portion and an upper stop portion, the upper mounting portion includes an upper through hole, an upper fastener extends through the upper through hole to be mounted to the second mounting hole of the base plate, the upper stop portion is bent from the upper mounting portion and extends downward; the lower stopper includes a lower mounting portion and a lower stop portion, the lower mounting portion includes a lower through hole, a lower fastener extends through the lower through hole to be mounted to the second mounting hole of the base plate, the lower stop portion is bent from the lower mounting portion and extends upward.

[0013] The roller guide device of the home elevator of the foregoing, wherein the number of the upper stop portions is set to two, the two upper stop portions are bent from two end portions of the upper mounting portion and extend downward, thereby contacting the surface of the rubber member at both sides of the upper portion of the rubber member; the number of the lower stop portions is set to two, the two lower stop portions are bent from two end portions of the lower mounting portion and extend upward, thereby contacting the surface of the rubber member at both sides of the lower portion of the rubber member.

[0014] The roller guide shoe device of the home elevator as claimed in the preceding claim, wherein an outer thread is provided on an outer circumferential surface of the second end surface of the roller shaft near the protrusion, an inner thread is provided on the first mounting hole of the base plate, and the outer thread of the roller shaft is engaged with the inner thread of the first mounting hole so that the roller shaft is mounted to the base plate.

[0015] The roller guide shoe device of the home elevator as claimed in the preceding claim, wherein an outer diameter of the roller is between 25 mm and 45 mm.

[0016] The roller guide shoe device of the home elevator as claimed in the preceding claim, wherein the base plate is directly mounted to the counterweight frame of the elevator through a fixing member extending through a fixing hole, a surface of the base plate in contact with the counterweight frame of the elevator is formed as a flat surface, the bearing is a rolling bearing, and the rubber member is a polyurethane rubber material.

[0017] According to another aspect of the present application, there is provided a home elevator comprising the roller guide shoe device as claimed in the preceding claim.

[0018] The roller guide shoe device of the home elevator has the advantages of compact structure, no need for lubrication with guide shoe oil, low operation noise, and environmental friendliness. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 FIG. 1 is a perspective view of a roller guide shoe device of a home elevator according to an exemplary embodiment of the present application.

[0020] Figure 2 FIG. 2 is an exploded view of the roller guide shoe device of the home elevator according to the exemplary embodiment of the present application.

[0021] Figure 3 FIG. 3 is an application schematic view of the roller guide shoe device of the home elevator according to the exemplary embodiment of the present application.

[0022] BRIEF DESCRIPTION OF DRAWINGS

[0023] 1 base plate

[0024] 11 recess

[0025] 12 first mounting hole

[0026] 13 second mounting hole

[0027] 14 fixing hole

[0028] 100 counterweight frame

[0029] 101 engagement hole

[0030] 102 fixing member

[0031] 2 roller assembly

[0032] 21 roller shaft

[0033] 211 protrusion

[0034] 211a first end surface

[0035] 211b second end surface

[0036] 210' side surface

[0037] 212 recess

[0038] 22 bearing

[0039] 23 snap ring

[0040] 24 roller

[0041] 3 rubber member

[0042] 5 upper stopper

[0043] 51 upper mounting portion

[0044] 511 upper through hole

[0045] 52 upper stopper portion

[0046] 53 upper fastener

[0047] 6 lower stopper

[0048] 61 lower mounting portion

[0049] 611 lower through hole

[0050] 62 lower stopper portion

[0051] 63 lower fastener

[0052] 10 roller guide shoe device DETAILED DESCRIPTION

[0053] It is to be understood that the drawings are not drawn to scale, but rather show various features of the present application in a somewhat simplified form to present an understanding of the basic principles of the present application. In the drawings of the present application, like reference numerals indicate like or corresponding parts throughout the several views.

[0054] Reference will now be made in detail to various embodiments of the present inventive concept, examples of which are illustrated in the accompanying drawings and described below. While the present inventive concept will be described in conjunction with exemplary embodiments, it will be understood that the present inventive concept is not limited to those exemplary embodiments. On the contrary, the present inventive concept is intended to cover various alternatives, modifications, equivalents and other embodiments, which are included within the spirit and scope of the present inventive concept as defined by the appended claims.

[0055] The detailed description of the specific structure and function of the embodiments of the present inventive concept disclosed herein is only for the purpose of illustrating the embodiments of the present inventive concept. The present inventive concept can be implemented in many different forms without departing from the spirit and essential characteristics of the present inventive concept. Therefore, the embodiments of the present inventive concept are disclosed only for the purpose of illustration and should not be construed as limiting the present inventive concept.

[0056] Although the terms "first", "second", etc. can be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element discussed below could be termed a second element without departing from the teachings of the present inventive concept. Similarly, a second element could be termed a first element.

[0057] Certain terms are used throughout the present inventive concept to refer to particular system components. As one skilled in the art will appreciate, the same component can be referenced by different names and can be used interchangeably throughout the present inventive concept without departing from the spirit and scope of the present inventive concept. In the present inventive concept, the terms "including", "comprising", and "having" are used in an open-ended fashion, and thus should be interpreted to mean "including, but not limited to...".

[0058] Hereinafter, exemplary embodiments of the present inventive concept will be described more specifically with reference to the accompanying drawings.

[0059] Figure 1 FIG. 1 is a perspective view of a roller guide shoe device for a home elevator according to an exemplary embodiment of the present inventive concept, Figure 2 FIG. 2 is an exploded view of the roller guide shoe device for the home elevator according to the exemplary embodiment of the present inventive concept, Figure 3 FIG. 3 is an application schematic view of the roller guide shoe device for the home elevator according to the exemplary embodiment of the present inventive concept.

[0060] Referring to Figures 1 to 3 The present inventive concept relates to a roller guide shoe device 10 for a home elevator, which can be installed on a counterweight frame 100 of the elevator.

[0061] According to the exemplary embodiment of the present application, the roller guide shoe device 10 of the home elevator can include a base plate 1, a pair of roller assemblies 2, and a rubber member 3, wherein the base plate 1 can be installed to the counterweight frame 100 of the elevator; each pair of roller assemblies can be symmetrical to each other and spaced apart by a predetermined distance, the roller assembly 2 can be installed to the base plate 1 and configured to guide the movement of the counterweight frame 100 in a rolling manner; and the rubber member 3 can be installed on the base plate 1.

[0062] Further, each roller assembly 2 can include a small-diameter roller 24 rotatable with respect to the base plate 1, and the rotation axes of the rollers 24 are parallel to each other and perpendicular to the base plate 1.

[0063] The exemplary embodiment of the present application shows an example including one pair of roller assemblies (i.e., two), but those skilled in the art should understand that the number of pairs of roller assemblies should not be limited thereto. In other embodiments, the number of roller assemblies can be adaptively adjusted according to actual application conditions, for example, two pairs, three pairs, or even more pairs of roller assemblies can be provided.

[0064] Hereinafter, for the convenience of description, the structure of the present application will be described in detail taking two roller assemblies 2 as an example.

[0065] According to the exemplary embodiment of the present application, the base plate 1 can include a recess 11, a first mounting hole 12, a second mounting hole 13, and a fixing hole 14, and the first mounting hole 12, the second mounting hole 13, and the fixing hole 14 are symmetrically arranged on both sides of the recess 11.

[0066] Here, in order to cooperate with the arrangement of the two roller assemblies 2, the number of the first mounting holes 12 is also set to two, and the two first mounting holes 12 are symmetrically arranged on both sides of the recess 11, and the two roller assemblies 2 are respectively installed to the two first mounting holes 12.

[0067] In addition, the other side of the base plate 1 opposite to the side where the recess 11 is formed is a flat surface. That is, the recess 11 is formed on one side of the base plate 1, and the other side of the base plate 1 opposite thereto is a flat surface, so that the flat surface is in contact with the surface of the counterweight frame of the elevator.

[0068] In the shown example, the number of the fixing holes 14 is set to four, the four fixing holes 14 are symmetrically arranged on both sides of the recess 11, and on each side of the recess 11, two fixing holes 14 are spaced apart from each other by a predetermined distance, and the first mounting hole 12 is located between the two fixing holes 14, preferably, the distance between the first mounting hole 12 and the two fixing holes 14 is equal, and the distance between the first mounting hole 12 and the fixing hole 14 is designed to allow the installation of the roller assembly 2 without hindering the application of the fixing hole 14.

[0069] Accordingly, with reference to Figure 3 At a corresponding position on the counterweight frame 100 of the elevator, an engaging hole 101 is provided, and the base plate 1, more comprehensively, the roller guide shoe device 10 can be directly installed to the counterweight frame 100 of the elevator by means of a fixing member 102 extending through the fixing hole 14. More specifically, the fixing member 102 extending through the fixing hole 14 of the base plate 1 can be engaged to the engaging hole 101 of the counterweight frame 100 of the elevator, thereby directly installing the base plate 1 to the counterweight frame 100 of the elevator, and thus installing the roller guide shoe device 10 to the counterweight frame 100 of the elevator, so as to guide the movement of the counterweight frame during the operation of the home elevator. However, it should be understood by those skilled in the art that the installation manner of the base plate 1 should not be limited thereto.

[0070] In addition, in the example shown, the fixing hole 14 of the base plate 1 is formed in an oval shape, and the engaging hole 101 of the counterweight frame 100 of the elevator is formed in a circular shape. In this case, the problem of being unable to assemble due to dimensional tolerance can be greatly avoided. Moreover, without changing the position of the engaging hole 101, the installation position of the roller guide shoe device 10 relative to the counterweight frame 100 of the elevator can be slightly adjusted, and accordingly, the roller guide shoe device 10 can be better and more flexible to match the counterweight guide rail of the home elevator.

[0071] In an embodiment of the present application, the fixing member 102 can be a bolt, and accordingly, the engaging hole 101 can be a threaded hole matched therewith; preferably, the thread rotation directions in the threaded portions of the four bolts can be set to be different.

[0072] According to the exemplary embodiment of the present application, each roller assembly 2 can further comprise a roller shaft 21, a bearing 22, and a snap ring 23, wherein the roller shaft 21 can be installed to the first mounting hole 12, the roller shaft 21 has a circular cross section; the inner peripheral surface of the bearing 22 can be installed on the outer peripheral surface of the roller shaft 21; the snap ring 23 can be installed on the roller shaft 21 and abuts against one side of the bearing 22, and the snap ring 23 is configured to limit the movement of the bearing 22 in a direction away from the base plate 1. The aforementioned roller 24 included in the roller assembly 2 can have an annular cross section, and the outer peripheral surface of the bearing 22 can be installed to the inner peripheral surface of the roller 24, so that the roller 24 is rotatably installed to the roller shaft, and the outer peripheral surface of the roller 24 can be in contact with the counterweight guide rail of the home elevator.

[0073] In detail, the counterweight guide rail of the home elevator can be located between a pair of rollers 24.

[0074] Further, in the illustrated example, the roller shaft 21 can include a protrusion 211 and a groove 212, wherein the protrusion 211 is formed radially protruding on the outer circumferential surface of the roller shaft 21, the protrusion 211 includes a first end surface 211a, an outer circumferential surface, and a second end surface 211b, the outer circumferential surface of the protrusion 211 includes a plurality of side surfaces 210', the plurality of side surfaces 210' cooperate with each other to collectively form a ring around the roller shaft 21, the protrusion 211 has a polygonal cross section, the first end surface 211a abuts against the other side of the bearing 22 in the axial direction and is configured to limit the movement of the bearing 22 in the direction close to the substrate 1, and the second end surface 211b abuts against the substrate 1 in the axial direction; the groove 212 is formed radially recessed on the outer circumferential surface of the roller shaft 21, the snap ring 23 is disposed in the groove 212, and the snap ring 23 partially protrudes from the groove 212 in the radial direction to abut against one side of the bearing 22 in the axial direction. Here, the so-called radial and axial directions are both defined with reference to the roller shaft 21.

[0075] That is, the bearing 22 is sleeved on the roller shaft 21 and located between the snap ring 23 and the first end surface 211a of the protrusion 211 in the axial direction, so that the bearing 22 is limited in the axial direction by the snap ring 23 and the first end surface 211a of the protrusion 211.

[0076] In addition, the outer circumferential surface of the roller shaft 21 close to the second end surface 211b of the protrusion 211 can be provided with an external thread (not shown), and correspondingly, the first mounting hole 12 of the substrate 1 can be provided with an internal thread (not shown), the external thread of the roller shaft 21 cooperates with the internal thread of the first mounting hole 12, so that the roller shaft 21 can be mounted to the substrate 1. However, it should be understood by those skilled in the art that the mounting manner of the roller shaft is not limited thereto.

[0077] Preferably, the rotation directions of the external threads on the two roller shafts can be set to be different from each other.

[0078] In the illustrated example, the edges of adjacent side surfaces 210' in the plurality of side surfaces 210' can be combined with each other, and each side surface 210' appears in the form of a flat surface, as shown in the figure, the plurality of side surfaces 210' are arranged around the roller shaft at different azimuth angles respectively.

[0079] According to the exemplary embodiment of the present application, the plurality of side surfaces 210' can form a polygonal prism structure, such as a hexagonal prism structure, an octagonal prism structure, etc., and the present application is not limited thereto.

[0080] In the preferred embodiment of the present application, the plurality of side surfaces 210' can cooperate with each other to jointly form a structure with a cross section in the shape of a regular hexagon, so that during the assembly and disassembly of the roller guide shoe device of the household elevator, tools such as hexagonal wrenches can be used to tighten or loosen the operation faster and more conveniently. However, those skilled in the art should understand that the shape of the cross section formed by the plurality of side surfaces should not be limited in this way, and under the teaching of the present application, the associated modifications and replacements all fall within the protection scope of the present application.

[0081] According to the exemplary embodiment of the present application, the outer diameter of the roller 24 can be between 25mm and 45mm, preferably, the outer diameter of the roller 24 can be 30mm. The bearing 22 can be a rolling bearing.

[0082] In one embodiment of the present application, the roller 24 can be made of rubber material.

[0083] Further, the roller guide shoe device of the household elevator of the present application is provided with a rubber piece 3 which is formed in a plate shape and is arranged in the recess 11 of the base plate 1. In the shown example, the rubber piece 3 can be a polyurethane rubber material. However, those skilled in the art should understand that the material of the rubber piece 3 should not be limited in this way.

[0084] According to the exemplary embodiment of the present application, the roller guide shoe device of the household elevator can further comprise: an upper stop block 5 and a lower stop block 6, wherein the upper stop block 5 is located at the upper part of the rubber piece 3; the lower stop block 6 is located at the lower part of the rubber piece 3; the upper stop block 5 and the lower stop block 6 are configured to install the rubber piece 3 to the recess 11 of the base plate 1.

[0085] In another embodiment of the present application, the roller guide shoe device of the household elevator can not be provided with an upper stop block and a lower stop block, in which case the rubber piece can be directly installed to the base plate, for example by adhesion or the like.

[0086] In the case of the household elevator of the present application, Figures 1 to 3In the shown exemplary embodiment, the upper stop 5 and the lower stop 6 are symmetrically arranged at the upper and lower portions of the rubber member 3. The upper stop 5 can include an upper mounting portion 51 and an upper stop portion 52, the upper mounting portion 51 including an upper through hole 511 through which an upper fastener 53 extends to be mounted to the second mounting hole 13 of the base plate 1, the upper stop portion 52 being bent from the upper mounting portion 51 and extending downward; the lower stop 6 can include a lower mounting portion 61 and a lower stop portion 62, the lower mounting portion 61 including a lower through hole 611 through which a lower fastener 63 extends to be mounted to the second mounting hole of the base plate 1, the lower stop portion 62 being bent from the lower mounting portion 61 and extending upward. In the drawings, the second mounting hole at the bottom of the base plate 1 is not visible due to the angle of view, but it should be understood by those skilled in the art that the second mounting hole at the bottom of the base plate 1 is arranged in the same way as the second mounting hole at the top of the base plate 1, which will not be described here.

[0087] In an embodiment of the present application, the upper fastener 53 and the lower fastener 63 can be screws, and correspondingly, the second mounting hole can be a threaded hole matched with the screw; preferably, the thread directions of the two upper fasteners can be set to be different from each other, and the thread directions of the two lower fasteners can also be set to be different from each other.

[0088] Further, in the shown example, the number of the upper stop portions 52 is set to be two, the two upper stop portions 52 being bent from the two ends of the upper mounting portion 51 and extending downward, so as to be in contact with the surface of the rubber member 3 at the two sides of the upper portion of the rubber member 3; similarly, the number of the lower stop portions 62 is set to be two, the two lower stop portions 62 being bent from the two ends of the lower mounting portion 61 and extending upward, so as to be in contact with the surface of the rubber member 3 at the two sides of the lower portion of the rubber member 3.

[0089] Here, the contact of the upper stop portions 52 with the surface of the rubber member 3 at the two sides of the upper portion of the rubber member 3 means that the middle portion of the upper portion of the rubber member 3, i.e. the portion other than the portion in contact with the upper stop portions 52, is exposed to the outside; similarly, the contact of the lower stop portions 62 with the surface of the rubber member 3 at the two sides of the lower portion of the rubber member 3 means that the middle portion of the lower portion of the rubber member 3, i.e. the portion other than the portion in contact with the lower stop portions 62, is exposed to the outside.

[0090] In particular, with reference to Figure 1 , the top surface of the rubber member 3 is at least partially exposed to the outside; similarly, the bottom surface of the rubber member 3 is at least partially exposed to the outside.

[0091] In the practical application of the roller guide shoe device of the household elevator of the present application, the part of the rubber member exposed to the outside can be in contact with the counterweight guide rail of the household elevator, so as to play the functions of guiding and limiting, shock absorption, and reducing running noise, etc.

[0092] The roller guide shoe device of the household elevator is suitable for the case that the rated speed is less than or equal to 0.4 m / s.

[0093] The roller guide shoe device of the household elevator is compact and small in structure, does not need to use guide shoe oil lubrication, and is very friendly to the environment with small operation noise.

[0094] The foregoing description of the specific exemplary embodiments of the present application is presented for the purpose of illustration and description. It is not intended to be exhaustive or to limit the application to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teachings. The exemplary embodiments were chosen and described in order to explain the principles of the application and its practical application and to thereby enable others skilled in the art to make and utilize various exemplary embodiments of the application and various alternatives and modifications thereto. It is intended that the scope of the application be defined by the claims appended hereto with their equivalents.

[0095] Conditional language, such as "can," "could," "might," or "may," generally intended to convey that certain embodiments include, while other embodiments do not include, certain features or elements. Thus, such conditional language generally is not intended to imply that one or more embodiments are necessarily included.

Claims

1. A roller guide shoe device of a home elevator installed on a counterweight frame of the elevator, characterized by, Comprising: a substrate mounted to a counterweight frame of an elevator; a pair of roller assemblies, each pair of roller assemblies being symmetrical to each other and spaced apart by a predetermined distance, the roller assemblies being mounted to the substrate and configured to guide movement of the counterweight frame in a rolling manner; and a rubber member mounted on the substrate; wherein each of the roller assemblies includes a small-diameter roller rotatable with respect to the substrate, and an axis of rotation of the roller is parallel to each other and perpendicular to the substrate.

2. The roller guide shoe device of the home elevator according to claim 1, wherein: the substrate includes a recess, a first mounting hole, a second mounting hole, and a fixing hole, the first mounting hole, the second mounting hole, and the fixing hole being symmetrically disposed on both sides of the recess; the pair of roller assemblies are disposed as one pair, the one pair of roller assemblies being symmetrically mounted to the first mounting hole on both sides of the recess.

3. The roller guide shoe arrangement of a residential elevator according to claim 2, characterized in that Each of the roller assemblies further includes: a roller shaft mounted to the first mounting hole, the roller shaft having a circular cross-section; a bearing mounted on an outer circumferential surface of the roller shaft; and a snap ring mounted on the roller shaft and abutting against one side of the bearing, the snap ring being configured to restrict movement of the bearing in a direction away from the substrate; wherein the roller has an annular cross-section, an outer circumferential surface of the bearing is mounted to an inner circumferential surface of the roller, such that the roller is rotatably mounted to the roller shaft.

4. The roller guide shoe arrangement of a residential elevator according to claim 3, characterized in that The roller shaft includes: a protrusion radially protruding formed on an outer circumferential surface of the roller shaft, the protrusion including a first end surface, an outer circumferential surface, and a second end surface, the outer circumferential surface of the protrusion including a plurality of side surfaces cooperating with each other to collectively form a loop around the roller shaft, the protrusion having a polygonal cross-section, the first end surface abutting against the other side of the bearing in an axial direction and being configured to restrict movement of the bearing in a direction approaching the substrate, the second end surface abutting against the substrate in the axial direction; and a groove radially recessed formed on the outer circumferential surface of the roller shaft, the snap ring being seated in the groove, and the snap ring partially protruding in a radial direction from the groove to abut against the one side of the bearing in the axial direction.

5. The roller guide shoe arrangement for a residential elevator of claim 2, wherein, The rubber member is formed in a plate shape and seated in the recess of the substrate, the roller guide shoe device further includes: an upper stopper located at an upper portion of the rubber member; and a lower stopper located at a lower portion of the rubber member; wherein the upper stopper and the lower stopper are configured to mount the rubber member to the recess of the substrate.

6. The roller guide shoe device of the home elevator according to claim 5, wherein: the upper stopper and the lower stopper are symmetrically disposed at the upper portion and the lower portion of the rubber member; the upper stopper includes an upper mounting portion and an upper stopper portion, the upper mounting portion including an upper through-hole, an upper fastener extending through the upper through-hole to be mounted to the second mounting hole of the substrate, the upper stopper portion being bent from the upper mounting portion and extending downward; the lower stopper includes a lower mounting portion and a lower stopper portion, the lower mounting portion including a lower through-hole, a lower fastener extending through the lower through-hole to be mounted to the second mounting hole of the substrate, the lower stopper portion being bent from the lower mounting portion and extending upward.

7. The roller guide shoe device of the home elevator according to claim 6, wherein: The number of the upper stoppers is two, and the two upper stoppers are bent from the two ends of the upper mounting part and extend downward, thereby contacting the surface of the rubber part on both sides of the upper part of the rubber part; The number of the lower stoppers is two, and the two lower stoppers are bent from the two ends of the lower mounting part and extend upward, thereby contacting the surface of the rubber part on both sides of the lower part of the rubber part.

8. The roller guide shoe arrangement of the home elevator according to claim 4, characterized in that An outer thread is arranged on the outer circumferential surface of the second end face of the protruding part of the roller shaft, and an inner thread is arranged on the first mounting hole of the base plate, and the outer thread of the roller shaft is matched with the inner thread of the first mounting hole, so that the roller shaft is mounted to the base plate.

9. The roller guide shoe arrangement of a residential elevator according to claim 1, characterized in that The outer diameter of the roller is between 25 mm and 45 mm.

10. The roller guide shoe device of the home elevator according to claim 3, characterized in that: The base plate is directly mounted to the counterweight frame of the elevator through the fixing member extending through the fixing hole, and the surface of the base plate in contact with the counterweight frame of the elevator is formed as a flat surface; The bearing is a rolling bearing; The rubber part is a polyurethane rubber material.

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