An escalator

Abstract

The utility model discloses an escalator, comprising: a first structural member, comprising a first connection hole; a second structural member, comprising a second connection hole, the first connection hole and the second connection hole corresponding to each other; a connecting part of a plastic material comprising a connecting body, the connecting body passing through the first connection hole and the second connection hole to achieve the connection between the first structural member and the second structural member; a first sealing part of a plastic material comprising a first profiling surface matching the surface of the first structural member, the first profiling surface being configured to fit the surface of the first structural member; and / or a second sealing part of a plastic material comprising a second profiling surface matching the surface of the second structural member, the second profiling surface being configured to fit the surface of the second structural member. The utility model can prevent the escalator from rusting and extend the service life of the escalator.

Description

Technical Field

[0001] The utility model relates to the field of ladders, in particular to an escalator. Background Art

[0002] Swimming is a popular sport and fitness exercise. With the continuous improvement of people's quality of life, fitness awareness is increasing, and strengthening the body through swimming has become a consensus among people. Therefore, swimming places and various swimming pools came into being, and swimming pool escalators are necessary facilities in swimming pools, which facilitate people to enter and exit the swimming pool smoothly.

[0003] The swimming pool ladder is usually set up on the swimming pool, with one side extending outside the swimming pool and the other side extending into the swimming pool. The two sides are respectively composed of two poles and multiple pedals connecting the two poles. At present, the connection between the pipes of the swimming pool ladders on the market and the connection between the pipes and other components are mostly screw connections. The screw-connected pipes are easy to get water in the screw holes, which will cause rust inside the pipes over time, affecting the service life of the ladder. Utility Model Content

[0004] The utility model aims to solve the problem that swimming pool escalators are prone to rust. The utility model provides an escalator, which can prevent the escalator from rusting and extend the service life of the escalator.

[0005] In order to solve the above technical problems, the embodiment of the utility model discloses an escalator, comprising:

[0006] A first structural member including a first connecting hole;

[0007] A second structural member includes a second connecting hole, wherein the first connecting hole corresponds to the second connecting hole;

[0008] A connecting part made of plastic material, the connecting part comprising a connecting body, the connecting body passing through the first connecting hole and the second connecting hole to achieve connection between the first structural member and the second structural member;

[0009] a first sealing portion made of plastic material, the first sealing portion comprising a first contoured surface matching the surface of the first structural member, the first contoured surface being configured to fit the surface of the first structural member; and / or,

[0010] The second sealing portion is made of plastic material, wherein the second sealing portion comprises a second contoured surface matching the surface of the second structural member, and the second contoured surface is configured to fit the surface of the second structural member.

[0011] Preferably, the first structural member and the second structural member are both tubular structural members, the first structural member is sleeved on the second structural member, the surface of the first structural member includes an arc surface, the first contoured surface is an arc surface, and the arc surface of the first contoured surface fits the arc surface of the first structural member.

[0012] Preferably, the first structural member and the second structural member are both tubular structural members, the first structural member is sleeved on the second structural member, the surface of the first structural member includes a plane, the first contoured surface is a plane, and the plane of the first contoured surface fits the plane of the first structural member.

[0013] Preferably, the connecting portion further includes a limiting member, and the first sealing portion is located between the limiting member and the first structural member.

[0014] Preferably, the connecting body includes a screw rod, the limiting member includes a nut and a screw head, and the nut and the screw head are respectively located at two ends of the screw rod; the first sealing portion includes a first gasket and a second gasket, the first gasket is located between the nut and the first structural member, and the second gasket is located between the screw head and the first structural member.

[0015] Preferably, the first structural member is a tubular structural member, and the second structural member is a plate-like structural member, and the tubular structural member and the plate-like structural member are fitted together; the surface of the tubular structural member includes an arc surface, the first profiling surface is an arc surface, and the arc surface of the first profiling surface is fitted together with the arc surface of the tubular structural member; the surface of the plate-like structural member includes a plane, the second profiling surface is a plane, and the plane of the second profiling surface is fitted together with the plane of the plate-like structural member.

[0016] Preferably, the connecting part also includes a first limit member and a second limit member, the first limit member and the second limit member are respectively located at two ends of the connecting body; the first sealing part is located between the first limit member and the first structural member, and the second sealing part is located between the second limit member and the second structural member.

[0017] Preferably, the connecting body includes a screw rod, the first limiting member includes a screw head, and the second limiting member includes a nut; the first sealing portion includes a first gasket, and the first gasket is located between the screw head and the first structural member; the second sealing portion includes a second gasket, and the second gasket is located between the nut and the second structural member.

[0018] Preferably, the first structural member includes a tubular structural member, and the second structural member includes a plate-like structural member, and both ends of the tubular structural member along its length direction are respectively in contact with the plate-like structural member; the surface of the plate-like structural member includes a plane, and the second contoured surface is a plane, and the plane of the second contoured surface is in contact with the plane of the plate-like structural member.

[0019] Preferably, the connecting portion further includes a limiting member, and the second sealing portion is located between the limiting member and the second structural member.

[0020] Preferably, the connecting part body includes a screw rod, the limiting member includes a nut and a screw head, and the nut and the screw head are respectively located at two ends of the screw rod; the second sealing part includes a first gasket and a second gasket, the first gasket is located between the nut and the second structural member, and the second gasket is located between the screw head and the second structural member.

[0021] Preferably, the escalator further comprises:

[0022] The handrail portion includes a first handrail tube, the first structural member includes the first handrail tube, and the first handrail tube includes two first connecting holes penetrating along the radial direction thereof;

[0023] The first ladder part includes a first support tube, the second structural member includes the first support tube, and the first support tube includes two second connection holes penetrating along the radial direction thereof;

[0024] The first handrail tube is sleeved outside the first supporting tube.

[0025] Preferably, the escalator further comprises:

[0026] The handrail portion includes a second handrail tube, the first structural member includes the second handrail tube, and the second handrail tube includes two first connecting holes penetrating along the radial direction thereof;

[0027] The second ladder portion includes a second support tube, the second structural member includes the second support tube, and the second support tube includes two second connection holes penetrating radially thereof;

[0028] The second handrail tube is sleeved outside the second supporting tube.

[0029] Preferably, the escalator further comprises:

[0030] The support pad includes a sleeve, the first structural member includes the sleeve, and the sleeve includes two first connecting holes penetrating along the radial direction thereof;

[0031] The second ladder portion includes a second support tube, the second structural member includes the second support tube, and the second support tube includes two second connection holes penetrating radially thereof;

[0032] The sleeve is sleeved outside the second supporting tube.

[0033] Preferably, the escalator further comprises:

[0034] A ladder subassembly, including a clip and a subassembly support tube;

[0035] The buckle member includes a hollow tube portion, the first structural member includes the hollow tube portion, and the hollow tube portion includes two first connecting holes penetrating along the radial direction thereof;

[0036] The second structural member includes the subassembly support tube, and the subassembly support tube includes two second connection holes penetrating radially therethrough;

[0037] The hollow tube portion is sleeved outside the subassembly support tube.

[0038] Preferably, the escalator further comprises:

[0039] The rotating assembly comprises a rotating body, the rotating body comprises a connecting pipe portion, the first structural member comprises the connecting pipe portion, and the connecting pipe portion comprises two first connecting holes penetrating along the radial direction thereof;

[0040] A ladder subassembly, comprising a subassembly support tube, wherein the second structural member comprises the subassembly support tube, and the subassembly support tube comprises two second connection holes extending radially therethrough;

[0041] The connecting pipe portion is sleeved outside the subassembly supporting pipe.

[0042] Preferably, the escalator further comprises:

[0043] The rotating assembly comprises a U-shaped connecting member, wherein the U-shaped connecting member comprises a cylindrical portion, the first structural member comprises the cylindrical portion, and the cylindrical portion comprises two first connecting holes penetrating radially thereof;

[0044] The handrail portion includes a second handrail tube, the second structural member includes the second handrail tube, and the second handrail tube includes two second connecting holes penetrating along the radial direction thereof;

[0045] The cylindrical portion is sleeved on the second handrail tube.

[0046] Preferably, the escalator further comprises:

[0047] The handrail portion includes a first handrail tube, the first structural member includes the first handrail tube, and the first handrail tube includes two first connecting holes penetrating along the radial direction thereof;

[0048] A reinforcing plate, wherein the second structural member includes the reinforcing plate, and one end of the reinforcing plate includes the second connecting hole.

[0049] Preferably, the escalator further comprises:

[0050] The handrail portion includes a second handrail tube, the first structural member includes the second handrail tube, and the second handrail tube includes two first connecting holes penetrating along the radial direction thereof;

[0051] A reinforcing plate, wherein the second structural member includes the reinforcing plate, and the other end of the reinforcing plate includes the second connecting hole.

[0052] Preferably, the escalator further comprises:

[0053] A rotating assembly, comprising a rotating body and a U-shaped connecting piece;

[0054] The rotating body includes a rotating tube portion, the first structural member includes the rotating tube portion, and the rotating tube portion includes the first connecting hole penetrating along the length direction thereof;

[0055] The U-shaped connecting member includes a U-shaped plate, the second structural member includes the U-shaped plate, the U-shaped plate includes a first fixing portion and a second fixing portion, the first fixing portion and the second fixing portion include the second connecting hole that is connected to each other;

[0056] Two ends of the rotating tube along its length direction are respectively fitted with the first fixing part and the second fixing part.

[0057] Preferably, the limiting member is provided with concave-convex patterns.

[0058] Preferably, the escalator further comprises:

[0059] A bushing made of plastic material is sleeved outside the first support tube, and at least a portion of the bushing is located between the first support tube and the first handrail tube to achieve a contactless connection between the first support tube and the first handrail tube.

[0060] Preferably, the bushing includes a first part and a second part, the second part of the bushing includes a first arc surface, the first support tube includes a second arc surface, the first arc surface and the second arc surface abut against each other to limit the bushing from sliding down along the length direction of the first support tube.

[0061] Preferably, along the radial direction of the first support tube, the first portion is located between the first support tube and the first handrail tube; the second portion includes a stop surface, and the bottom of the first handrail tube abuts against the stop surface.

[0062] Preferably, the escalator further comprises:

[0063] Guides made of plastic;

[0064] A support pad, used to be placed on the ground, the support pad comprising a receiving groove;

[0065] The second support tube is supported in the accommodating groove by the guide member, and the second support tube is located outside the accommodating groove.

[0066] Preferably, the escalator further comprises:

[0067] Guides made of plastic;

[0068] A support pad, used to be placed on the ground, the support pad comprising a receiving groove;

[0069] The subassembly support tube is supported in the accommodating groove by the guide member, and the subassembly support tube is located outside the accommodating groove.

[0070] The escalator proposed in the present application, on the one hand, adopts a plastic connection part (i.e., screws and nuts) to achieve reliable connection of the various structural parts of the escalator while preventing water from flowing into the tubular structural parts, causing the tubular structural parts to rust. On the other hand, a plastic bushing is added to the connection between the first handrail tube and the first support tube, and the second handrail tube and the second support tube, to avoid direct contact and friction between the first handrail tube and the first support tube, and direct contact and friction between the second handrail tube and the second support tube, thereby preventing one or more of the first handrail tube and the first support tube, and the second handrail tube and the second support tube from rusting due to coating damage. In addition, the present application also supports the subassembly support tube in the receiving groove of the support pad through a plastic guide member, thereby preventing the subassembly support tube from rubbing against the support pad, causing the coating of the subassembly support tube to be damaged and rusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0071] Figure 1 A perspective view of an escalator is shown according to one embodiment of the present application;

[0072] Figure 2 According to one embodiment of the present application, a cross-sectional view showing the connection between the first support tube and the first handrail tube is shown;

[0073] Figure 3 Show Figure 2 A partial enlarged view of the middle A area;

[0074] Figure 4A perspective view of a bushing is shown according to one embodiment of the present application;

[0075] Figure 5 A partial enlarged view of a first ladder portion is shown according to one embodiment of the present application;

[0076] Figure 6 A three-dimensional view of an armrest portion is shown according to one embodiment of the present application;

[0077] Figure 7 A perspective view of a first gasket is shown according to one embodiment of the present application;

[0078] Figure 8 According to another embodiment of the present application, a cross-sectional view showing the connection between the second support tube, the second handrail tube and the U-shaped connector is shown;

[0079] Fig. 9 According to another embodiment of the present application, a partial enlarged view of the connection between the second support tube, the second handrail tube and the U-shaped connector is shown;

[0080] Fig.10 According to another embodiment of the present application, a perspective view of a second support tube is shown;

[0081] Fig.11 According to another embodiment of the present application, a perspective view of a U-shaped connector is shown;

[0082] Fig.12 A cross-sectional view showing the connection between the rotating body and the subassembly support pipe according to another embodiment of the present application;

[0083] Fig.13 According to another embodiment of the present application, a three-dimensional diagram of a rotating body is shown;

[0084] Fig.14 According to another embodiment of the present application, a partial enlarged view showing the connection between the clip and the subassembly support tube is shown;

[0085] Fig.15 According to another embodiment of the present application, a cross-sectional view showing the connection between the clip and the subassembly support tube is shown;

[0086] Fig.16 According to another embodiment of the present application, a partial enlarged view showing the connection between the sleeve and the second support tube is shown;

[0087] Fig.17 According to another embodiment of the present application, a cross-sectional view showing the connection between the sleeve and the second support tube is shown;

[0088] Fig.18 According to another embodiment of the present application, a three-dimensional diagram showing the connection between the armrest portion and the reinforcement plate is shown;

[0089] Fig.19According to another embodiment of the present application, a cross-sectional view showing the connection between the first handrail tube and the reinforcement plate is shown;

[0090] Fig. 20 According to another embodiment of the present application, a cross-sectional view showing the connection between the rotating body and the U-shaped connecting piece is shown;

[0091] Fig.21 According to another embodiment of the present application, a perspective view of a U-shaped plate is shown;

[0092] Fig. 22 A three-dimensional diagram of a screw of a hand-tightening structure is shown according to another embodiment of the present application;

[0093] Fig.23 A partial diagram showing the connection between the subassembly support tube and the guide member according to another embodiment of the present application;

[0094] Fig.24 According to another embodiment of the present application, a partial enlarged view showing the guide member connected to the support pad is shown;

[0095] Fig.25 A cross-sectional view showing the connection between a subassembly support tube and a guide member according to another embodiment of the present application. DETAILED DESCRIPTION

[0096] The following is an explanation of the implementation of the present invention by specific specific embodiments. Those skilled in the art can easily understand other advantages and functions of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this utility model are limited to this implementation. On the contrary, the purpose of introducing the utility model in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will include many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that, in the absence of conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0097] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0098] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0099] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0100] In the description of this embodiment, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0101] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0102] Figure 1 According to one embodiment of the present application, a three-dimensional diagram of an escalator is shown. Figure 1 As shown, the escalator 1 includes: a first ladder part 2, a second ladder part 3, a handrail part 4, a ladder subassembly 5 and a support pad 6.

[0103] The first ladder part 2 is suitable for being placed inside a swimming pool. Specifically, the first ladder part 2 includes a pair of first support tubes 200, and a plurality of steps 7 located between the pair of first support tubes 200. The plurality of steps 7 are arranged along the length direction ( Figure 1 The plurality of pedals 7 serve as a surface on which a user can stand, and the user enters and leaves the swimming pool through the plurality of pedals 7.

[0104] The second ladder part 3 is suitable for being placed outside the swimming pool, and has a substantially symmetrical structure with the first ladder part 2. Specifically, the second ladder part 3 includes a pair of second support pipes 300.

[0105] The handrail portion 4 is used to connect the first ladder portion 2 and the second ladder portion 3. Specifically, the handrail portion 4 includes a pair of handrail tubes 400, and the pair of handrail tubes 400 corresponds to a pair of first support tubes 200 and a pair of second support tubes 300, that is, both ends of each handrail tube 400 in the pair of handrail tubes are respectively connected to a first support tube 200 and a second support tube 300 corresponding thereto.

[0106] Each of the pair of handrail tubes 400 of the handrail portion 4 includes a first handrail tube 401, a second handrail tube 402 and an arc tube 403. The two ends of the arc tube 403 are respectively connected to the first handrail tube 401 and the second handrail tube 402 to present a Figure 1 The V-shaped handrail portion 4 is shown. In addition, the first handrail tube 401 and the second handrail tube 402 are further connected via a reinforcing plate 17 at one side away from the arc tube 403, i.e., one end of the reinforcing plate 17 is connected to the first handrail tube 401, and the other end is connected to the second handrail tube 402, thereby improving the support strength of the handrail portion 4.

[0107] Those skilled in the art will appreciate that, in the present embodiment, the handrail portion 4 is V-shaped, but in other embodiments, the handrail portion 4 may be U-shaped or any other similar shape that can span the wall of the swimming pool.

[0108] The ladder subassembly 5 comprises a pair of subassembly support pipes 500, and a plurality of pedals 8 located between the pair of subassembly support pipes 500. The plurality of pedals 8 extend along the length direction of the subassembly support pipes 500 ( Figure 1 The plurality of pedals 8 serve as a surface on which a user can stand, and the user enters and leaves the swimming pool through the plurality of pedals 8. The length direction of the subassembly support pipe 500 (shown in the Z2 direction) is Figure 1 Z2 direction) and the length direction of the first support tube 200 ( Figure 1 The two axes intersect and are arranged at an acute angle (as shown in the Z1 direction).

[0109] In addition, the ladder subassembly 5 is connected to the second ladder portion 3, and the two are in a parallel or substantially parallel relationship, and the ladder subassembly 5 and the second ladder portion 3 are placed together outside the swimming pool.

[0110] Specifically, the ladder subassembly 5 is pivotally connected to the second ladder section 3 via the rotating assembly 10 so that the ladder subassembly 5 can be in the working position (i.e. Figure 1The ladder subassembly 5 can be rotated between the working position and the non-working position. The working position is that the lower end of the ladder subassembly 5 is connected to the ground, so that the user can enter the swimming pool through the step 8 of the ladder subassembly 5. The non-working position is the position where the ladder subassembly 5 cannot be operated. At this time, the ladder subassembly 5 is fixed at a position above the ground by the buckle 29, and unattended children and other vulnerable people who try to approach the pool cannot enter the swimming pool through the ladder subassembly 5.

[0111] Those skilled in the art will appreciate that, in other embodiments, the first ladder portion 2 may be placed outside the swimming pool, while the second ladder portion 3 and the ladder subassembly 5 may be placed together inside the swimming pool, which can also realize the function of allowing users to enter and exit the swimming pool.

[0112] The support pad 6 connects the second ladder portion 3 and the ladder subassembly 5, and is placed on the ground (the ground inside the swimming pool or the ground outside the swimming pool) to support the second ladder portion 3 and the ladder subassembly 5. Exemplarily, the support pad 6 is made of plastic. However, those skilled in the art will appreciate that the support pad 6 may also be made of other materials, such as rubber.

[0113] In this way, the escalator 1 has multiple groups of structural parts that need to be connected in pairs, such as the first support tube 200 and the first handrail tube 401, the second support tube 300 and the second handrail tube 402, the rotating assembly 10 and the second handrail tube 402, the rotating assembly 10 and the sub-assembly support tube 500, the snap fastener 29 and the sub-assembly support tube 500, the support pad 6 and the second support tube 300, the handrail tube 400 and the reinforcement plate 17, etc.

[0114] In an existing embodiment, metal screws and washers are used to connect two structural parts. However, this connection method using metal screws, on the one hand, the metal screws themselves are prone to friction with the structural parts that are in direct contact with them (such as the first support tube 200, the first handrail tube 401, the second support tube 300, the second handrail tube 402, the subassembly support tube 500, the support pad 6, the rotating assembly 10, the snap-fit ​​part 29, etc.), causing the coating to fall off, resulting in rust on the structural parts. On the other hand, water is easy to enter the tubular structural parts (such as the first support tube 200, the first handrail tube 401, the second support tube 300, the second handrail tube 402, the subassembly support tube 500, etc.) through the screw holes, causing them to rust, thereby affecting the life of the escalator.

[0115] The present application uses screws and washers made of plastic material, which can ensure the reliable connection between the two structural parts while preventing the two connected structural parts from rubbing against other metal parts (such as the above-mentioned metal screws), thereby preventing the coating on the structural parts of the escalator from being damaged; on the other hand, it can prevent water from entering the interior of the tubular structural parts through the screw holes, thereby causing the escalator to rust.

[0116] Specifically, the multiple groups of structural members that need to be connected in pairs in the escalator 1 mainly include two types, namely, the connection between tubular structural members and tubular structural members, and the connection between tubular structural members and plate-like structural members. Among them, the connection between tubular structural members and tubular structural members includes the connection between the first support tube 200 and the first handrail tube 401, the connection between the second support tube 300 and the second handrail tube 402, the connection between the second handrail tube 402 and the rotating assembly 10, the connection between the rotating assembly 10 and the subassembly support tube 500, the connection between the subassembly support tube 500 and the snap-on member 29, and the connection between the support pad 6 and the second support tube 300. The connection between the tubular structural members and the plate-like structural members includes the connection between the first handrail tube 401 and the reinforcing plate 17, the connection between the second handrail tube 402 and the reinforcing plate 17, and the connection between the two structural members of the rotating assembly 10 itself (the rotating body and the U-shaped connector described later). The specific connection methods of the above two types of structural members connected in pairs will be described one by one in conjunction with the accompanying drawings.

[0117] First, combine Figures 2 to 7 The specific connection method of the two tubular structural members, the first support tube 200 and the first handrail tube 401, is described below.

[0118] Figure 2 A cross-sectional view showing the connection between the first handrail tube 401 and the first support tube 200 is shown; Figure 3 A partial enlarged view showing the connection between the first handrail tube 401 and the first support tube 200 via the bushing 9 is shown; Figure 4 A perspective view of the bushing 9 is shown; Figure 5 shows a partial enlarged view of the first support tube 200; Figure 6 shows a perspective view of the armrest portion 4; Figure 7 A perspective view of the first gasket 111 is shown.

[0119] like Figure 2 and Figure 3 As shown, the first handrail tube 401 is sleeved outside the first support tube 200, and the first support tube 200 is provided with a plastic bushing 9, and the bushing 9 realizes the non-contact connection between the first support tube 200 and the first handrail tube 401. In other words, on the basis of realizing the sleeve connection between the first support tube 200 and the first handrail tube 401, the direct contact between the first handrail tube 401 and the first support tube 200 is avoided, thereby further avoiding the rust caused by the peeling of the coating due to the mutual friction between the first handrail tube 401 and the first support tube 200.

[0120] Those skilled in the art will appreciate that the material of the bushing 9 is not limited to plastic, and the bushing 9 may also be made of other materials, such as rubber.

[0121] Specifically, if Figure 3 and Figure 4As shown, the bushing 9 includes a first portion 901 and a second portion 902 connected to each other. Figure 3 (as shown in the R1 direction in the figure), the first part 901 of the bushing 9 is located between the first support tube 200 and the first handrail tube 401. That is, the first part 901 of the bushing 9 extends between the first support tube 200 and the first handrail tube 401 to separate the first support tube 200 and the first handrail tube 401, so as to prevent the two from directly contacting and rubbing in the radial direction thereof, thereby damaging the coating on the first support tube 200 and the first handrail tube 401, and causing the first support tube 200 and the first handrail tube 401 to rust.

[0122] like Figure 3 As shown, the second portion 902 of the bushing 9 is sleeved and relatively fixed to the first support tube 200 , and the second portion 902 closes the lower port of the first handrail tube 401 to prevent water from flowing into between the first handrail tube 401 and the first support tube 200 .

[0123] Specifically, the inner wall of the second portion 902 of the bushing 9 includes a first arc surface 903, which surrounds the inner wall of the second portion 902 and extends along the axial direction of the bushing 9 ( Figure 3 The radial dimension of the first arc surface 903 increases from top to bottom).

[0124] like Figure 3 and Figure 5 As shown, the outer wall of the first support tube 200 includes a second arc surface 201, and the second arc surface 201 surrounds the outer wall of the first support tube 200. The outer diameter of the first support tube 200 above the second arc surface 201 is smaller than the outer diameter of the first support tube 200 below the second arc surface 201, that is, the second arc surface 201 is a diameter transition area of ​​the first support tube 200.

[0125] like Figure 3 As shown, the first arc surface 903 abuts against the second arc surface 201 to limit the bushing 9 along the length direction of the first support tube 200 ( Figure 3 The bushing 9 slides down (as shown in the Z1 direction), that is, the bushing 9 cooperates with the second arc surface 201 on the first support tube 200 through the first arc surface 903 on the second part 902 thereof, thereby achieving relative fixation of the bushing 9 on the first support tube 200.

[0126] like Figure 4 As shown, the radial dimension of the outer wall of the first part 901 of the bushing 9 is smaller than the radial dimension of the outer wall of the second part 902. The outer wall of the second part 902 is radially ( Figure 3The surface of the portion protruding from the first portion 901 (in the direction R1 in the middle) forms a stopper surface 904. The bottom of the first handrail tube 401 abuts against the stopper surface 904 to close the lower end of the first handrail tube 401, thereby preventing water from entering between the first handrail tube 401 and the first support tube 200 from the lower end of the first handrail tube 401, causing the first handrail tube 401 and the first support tube 200 to rust.

[0127] refer to Figure 2 On the basis of the initial socket connection between the first handrail tube 401 and the first support tube 200 through the bushing 9, the first handrail tube 401 and the first support tube 200 are fixedly connected by a plastic screw 100 and a plastic nut 101, which will be described in detail below with reference to the accompanying drawings.

[0128] like Figure 2 and Figure 6 As shown, the first handrail tube 401 (which may be referred to as the first structural member) includes a Figure 2 The two first connection holes 406 penetrate the first handrail tube 401 in the radial direction (as shown in the R1 direction), that is, the two first connection holes 406 are respectively located on the surfaces of the two sides of the first handrail tube 401 in the radial direction, that is, the two first connection holes 406 correspond to and are connected with each other in the radial direction of the first handrail tube 401.

[0129] like Figure 2 and Figure 5 As shown, the first support tube 200 (which may be referred to as the second structural member) includes a Figure 2 The first handrail tube 401 is sleeved outside the first support tube 200, and the two first connection holes 406 correspond to the two second connection holes 202 one by one and are connected to each other.

[0130] like Figure 2 As shown, the above-mentioned screw 100 made of plastic material includes a screw rod 103 (as a connecting body), and the screw rod 103 is used to pass through the two first connecting holes 406 and the two second connecting holes 202. The two ends of the screw rod 103 are respectively a nut 101 (as a stopper) and a screw head 102 (as a stopper) made of plastic material, and the nut 101 and the screw head 102 are respectively located on two opposite sides of the outer circumference of the first handrail tube 401 in the radial direction.

[0131] A first gasket 111 (serving as a first sealing portion) made of plastic is disposed on one side of the nut 101 facing the screw head 102, and a second gasket 112 (serving as a first sealing portion) made of plastic is disposed on one side of the screw head 102 facing the nut 101. The first gasket 111 and the second gasket 112 have the same structure, and both have the following features: Figure 7The contoured surface 113 (as the first contoured surface) shown matches the arc surface of the first handrail tube 401, and its contoured surface 113 has the same curvature as the arc surface of the first handrail tube 401, so as to achieve the sealing effect of the first gasket 111 and the second gasket 112 described later.

[0132] Specifically, the first gasket 111 is located between the nut 101 and the first handrail tube 401, and the nut 101 presses the first gasket 111 against the surface of the first handrail tube 401. The contoured surface 113 (i.e., the arc surface) of the first gasket 111 fits with the arc surface of the first handrail tube 401, thereby forming a first connection hole 406 (e.g., Figure 2 The sealing of the orifice of the first connecting hole 406 on the left side is shown.

[0133] Similarly, the second gasket 112 is located between the screw head 102 and the first handrail tube 401. The screw head 102 presses the second gasket 112 against the surface of the first handrail tube 401, so that the contoured surface (i.e., the arc surface) of the second gasket 112 fits with the arc surface of the first handrail tube 401, thereby forming a first connection hole 406 (such as Figure 2 Sealing of the orifice of the first connecting hole on the right side shown.

[0134] In this way, the first gasket 111 and the second gasket 112 form a seal at the openings of the two first connecting holes 406 on the first handrail tube 401 to prevent liquid from leaking into the first handrail tube 401 from the two first connecting holes 406, causing corrosion of the first handrail tube 401 and the first support tube 200 located in the first handrail tube 401.

[0135] In summary, this embodiment uses the screw rod 100 of the screw 100 made of plastic material as the connecting body, the first gasket 111 and the second gasket 112 made of plastic material as the sealing part, and the nut 101 and the screw head 102 made of plastic material as the limiter, thereby realizing the reliable connection between the first handrail tube 401 and the first support tube 200, while avoiding the first handrail tube 401 and the first support tube 200 from contacting other metal structures (such as metal screws), and also avoiding the first handrail tube 401 and the first support tube 200 from causing liquid to enter the tube due to the first connecting hole 406 and the second connecting hole 202 opened therein, thereby causing the first handrail tube 401 and the first support tube 200 to rust.

[0136] Then, combine Figure 6 , Figures 8 to 11 The specific connection method of the two groups of tubular structural members, namely, the second support tube 300 and the second handrail tube 402 , and the second handrail tube 402 and the rotating assembly 10 , is described.

[0137] Figure 6shows a perspective view of the armrest portion 4; Figure 8 A cross-sectional view showing the connection between the rotating assembly 10, the second handrail tube 402 and the second support tube 300; Fig. 9 A partial enlarged view showing the connection between the rotating assembly 10, the second handrail tube 402 and the second support tube 300; Fig.10 A perspective view of the second support tube 300 is shown; Fig.11 A perspective view of the U-shaped connection 14 of the rotating assembly 10 is shown.

[0138] like Figure 8 As shown, similar to the above embodiment, the second support tube 300 is also sleeved with a bushing 9 to achieve the connection between the second support tube 300 and the second handrail tube 402 while preventing the second handrail tube 402 and the second support tube 300 from rusting due to friction damage to the coating. The specific way in which the second support tube 300 and the second handrail tube 402 are connected through the bushing 9 is the same as the way in which the first support tube 200 and the first handrail tube 401 are connected through the bushing 9, which can be referred to the above embodiment, and this application will not elaborate on this.

[0139] refer to Figure 8 and Fig. 9 It should be noted that, in this embodiment, the second handrail tube 402 is sleeved outside the second support tube 300, and the rotating assembly 10 (the U-shaped connector 14 described later) is sleeved outside the second handrail tube 402, and the second support tube 300, the second handrail tube 402 and the rotating assembly 10 are in the radial direction ( Figure 8 If there is an overlapping area of ​​the three on the second handrail tube 402 and the second support tube 300 through the bushing 9, the second support tube 300, the second handrail tube 402 and the rotating assembly 10 are connected by the same set of plastic screws 15 and plastic nuts 151 to achieve the above-mentioned fixed connection between the second support tube 300 and the second handrail tube 402, as well as the fixed connection between the second handrail tube 402 and the rotating assembly 10, which will be described in detail below with reference to the accompanying drawings.

[0140] refer to Figure 8 and Fig.10 The second support tube 300 (which may be referred to as the second structural member) of the second ladder portion includes a Figure 8 In this embodiment, the second support tube 300 is provided with two groups of second connection holes 203 extending along the length direction (indicated by the R2 direction) of the second support tube 300. Fig.10 The second connection holes are arranged at intervals (as shown in the Z2 direction), and each group of second connection holes includes two second connection holes 203 that correspond to and are connected in the radial direction of the second support tube 300.

[0141] Combination Figure 6As shown, the second handrail tube 402 (which can be referred to as the first structural member relative to the second support tube and can be referred to as the second structural member relative to the cylindrical portion described later) includes a Figure 8 In this embodiment, the second handrail tube 402 is provided with two groups of connecting holes extending along the length direction (indicated by the R2 direction) of the second handrail tube 402. Figure 6 The first connecting holes are arranged at intervals (as shown in the Z2 direction), and each group of first connecting holes includes two first connecting holes 404 that correspond to and are connected in the radial direction of the second handrail tube 402.

[0142] like Fig. 9 and Fig.11 As shown, the rotating assembly 10 includes a U-shaped connecting member 14, the U-shaped connecting member 14 includes a cylindrical portion 140 (which can be referred to as a first structural member), and the outer wall of the cylindrical portion 140 includes a second support tube 300 along the length direction ( Fig.11 The two groups of first connection holes are arranged at intervals (as shown in the Z2 direction), each group of first connection holes includes two first connection holes 141, and the two first connection holes 141 of each group of first connection holes are arranged along the radial direction of the cylindrical portion 140 ( Fig.11 (as shown in the direction of R2) correspond and are connected.

[0143] An installation groove 142 is formed on the outer wall of the cylindrical portion 140. The installation groove 142 is disposed around the first connection hole 141 and communicates with the first connection hole 141. Optionally, a groove bottom wall 143 of the installation groove 142 is a plane.

[0144] like Figure 8 As shown, the cylindrical portion 140 is sleeved outside the second handrail tube 402, and the second handrail tube 402 is sleeved outside the second support tube 300, so the first connecting hole 141 and the first connecting hole 404 and the second connecting hole 203 are radially ( Figure 8 The three correspond to each other one by one and are interconnected.

[0145] The above-mentioned plastic screw 15 includes a screw rod 150 (as a connecting body), which is used to pass through the first connecting hole 141, the first connecting hole 404 and the second connecting hole 203 in sequence. The two ends of the screw rod 150 are respectively a nut 151 (as a limiter) and a screw head 152 (as a limiter) made of plastic material. The nut 151 and the screw head 152 are respectively located on two opposite sides of the radial direction on the outer periphery of the cylindrical portion 140.

[0146] A first gasket 161 (serving as a first sealing portion) made of plastic material is provided on the side of the nut 151 facing the screw head 152, and a second gasket 162 (serving as a first sealing portion) made of plastic material is provided on the side of the screw head 152 facing the nut 151. The first gasket 161 and the second gasket 162 have the same structure, and both have a contoured surface (serving as a first contoured surface) that matches the plane of the bottom wall 143 of the mounting groove 142 on the cylindrical portion 140, that is, the first gasket 161 and the second gasket 162 are both flat gaskets, so as to better fit the bottom wall 143 of the mounting groove 142 on the cylindrical portion 140, thereby achieving the sealing effect of the first gasket 161 and the second gasket 162.

[0147] Specifically, the first gasket 161 is located between the nut 151 and the bottom wall 143 of the mounting groove 142 on the cylindrical portion 140. The nut 151 presses the first gasket 161 against the bottom wall 143 of the mounting groove 142, so that the contoured surface (i.e., the plane) of the first gasket 161 fits with the bottom wall 143 of the mounting groove 142, thereby forming a first connection hole 141 (such as Figure 8 Sealing of the orifice of the first connecting hole on the right side shown.

[0148] Similarly, the second gasket 162 is located between the screw head 152 and the groove bottom wall 143 of the installation groove 142 on the cylindrical portion 140. The screw head 152 presses the second gasket 162 against the groove bottom wall 143 of the installation groove 142, so that the contoured surface (i.e., the plane) of the second gasket 162 fits with the surface of the groove bottom wall 143 of the installation groove 142, thereby forming a contact with the other first connecting hole 141 (such as Figure 8 The sealing of the orifice of the first connecting hole on the left side shown.

[0149] In this way, the first gasket 161 and the second gasket 162 form a seal at the openings of the two first connecting holes 141 on the cylindrical portion 140 of the U-shaped connecting piece 14, thereby preventing liquid from leaking into the second handrail tube 402 through the two first connecting holes 141 and then through the two first connecting holes 404, causing corrosion of the second handrail tube 402 and the second support tube 300 located in the second handrail tube 402.

[0150] Optionally, the screws 15 and nuts 151 are provided in pairs, corresponding to the two groups of first connection holes 141, the two groups of first connection holes 404, and the two groups of second connection holes 203. In other words, two connections are made on the overlapping areas of the second support tube 300, the second handrail tube 402, and the rotating assembly 10 to ensure the reliability of the connection of the three.

[0151] In summary, the present embodiment adopts the screw rod 150 of the screw 15 made of plastic material as the connecting body, the first gasket 161 and the second gasket 162 made of plastic material as the sealing part, and the nut 151 and the screw head 152 made of plastic material as the limiter, which ensures the reliable connection among the second support tube 300, the second handrail tube 402 and the U-shaped connecting member 14, while avoiding the second support tube 300, the second handrail tube 402 and the U-shaped connecting member 14 from contacting other metal structures (such as metal screws), and also avoids the U-shaped connecting member 14 from leaking due to the first connecting hole 141 opened therein, causing liquid to flow from the first connecting hole 141 through the first connecting hole 404 into the second handrail tube 402, thereby causing the second handrail tube 402 and the second support tube 300 located in the second handrail tube 402 to rust.

[0152] Combine the following Fig. 9 , Fig.12 and Fig.13 The specific connection method of the two tubular structural members, the rotating assembly 10 and the subassembly support tube 500, is described.

[0153] Fig.12 A cross-sectional view showing the connection between the rotating assembly 10 and the subassembly support tube 500; Fig.13 A perspective view of a rotating body 21 of the rotating assembly 10 is shown.

[0154] refer to Fig.12 Combined with Fig. 9 The rotating assembly 10 includes a rotating body 21, and the rotating body 21 includes a connecting pipe portion 214, which is sleeved on the sub-assembly support tube 500. After the connecting pipe portion 214 and the sub-assembly support tube 500 are initially sleeved, the two are further fixedly connected by a plastic screw 26 and a plastic nut 261.

[0155] Specifically, if Fig. 9 and Fig.13 As shown, the rotating body 21 includes a connecting pipe portion 214 (which may be referred to as a first structural member), and the connecting pipe portion 214 is provided with a radial direction ( Fig.13 The two first connection holes 215 are connected to each other in the radial direction of the connecting pipe part 214. For example, two planes 217 are provided on the outer peripheral surface of the connecting pipe part 214, and the two planes 217 are respectively located on two side surfaces of the connecting pipe part 214 in the radial direction.

[0156] like Fig.12 As shown, the subassembly support tube 500 (which may be referred to as the second structural member) includes a Fig.12The two second connection holes 501 penetrate the subassembly support tube 500 (as shown in the R2 direction), and the two second connection holes 501 correspond to and are connected in the radial direction of the subassembly support tube 500.

[0157] The connecting tube portion 214 is sleeved outside the subassembly supporting tube 500 , and the two first connecting holes 215 and the two second connecting holes 501 correspond to each other and are interconnected.

[0158] like Fig.12 As shown, the plastic screw 26 includes a screw rod 260 (as a connecting body), and the screw rod 260 is used to pass through the two first connecting holes 215 and the two second connecting holes 501. The two ends of the screw rod 260 are respectively a nut 261 (as a stopper) and a screw head 262 (as a stopper) made of plastic material, and the nut 261 and the screw head 262 are respectively located on both sides of the connecting tube 214.

[0159] A first gasket 271 (serving as a first sealing portion) made of plastic material is provided on the side of the nut 261 facing the screw head 262, and a second gasket 272 (serving as a first sealing portion) made of plastic material is provided on the side of the screw head 262 facing the nut 261. The first gasket 271 and the second gasket 272 have the same structure, and both have a contoured surface (serving as a first contoured surface) matching the two planes 217 on the connecting pipe portion 214, that is, the first gasket 271 and the second gasket 272 are both flat gaskets, so as to better fit the two planes 217 on the connecting pipe portion 214, thereby realizing the sealing effect of the first gasket 271 and the second gasket 272 described later.

[0160] Specifically, the first gasket 271 is located between the nut 261 and a plane 217 on the connecting tube portion 214. The nut 261 presses the first gasket 271 against the plane 217 so that the contoured surface (i.e., the plane) of the first gasket 271 fits with the plane 217, thereby forming a first connecting hole 215 (e.g., Fig.12 The sealing of the opening of the first connecting hole 215) on the left side is shown.

[0161] Similarly, the second gasket 272 is located between the screw head 262 and another plane 217 on the connecting pipe portion 214. The screw head 262 presses the second gasket 272 against the surface of the other plane 217, so that the contoured surface (i.e., the plane) of the second gasket 272 fits with the other plane 217, thereby forming a contact with another first connecting hole 215 (such as Fig.12 The sealing of the orifice of the first connecting hole 215) on the right side is shown.

[0162] In this way, the first gasket 271 and the second gasket 272 form a seal at the openings of the two first connecting holes 215 on the connecting pipe portion 214, preventing liquid from entering from the two first connecting holes 215 and leaking into the sub-assembly support tube 500 from the two second connecting holes 501, causing corrosion of the connecting pipe portion 214 and the sub-assembly support tube 500.

[0163] In summary, this embodiment uses the screw rod 260 of the screw 26 made of plastic material as the connecting body, the first gasket 271 and the second gasket 272 made of plastic material as the sealing part, and the nut 261 made of plastic material and the screw head 262 of the screw 26 made of plastic material as the limiter, which ensures the reliable connection between the connecting pipe part 214 and the sub-assembly support pipe 500 while avoiding the connecting pipe part 214 and the sub-assembly support pipe 500 from contacting other metal structures (such as metal screws), and also avoids leakage in the first connecting hole 215 of the connecting pipe part 214, causing liquid to enter the connecting pipe part 214, thereby causing the connecting pipe part 214 and the second handrail pipe 402 to rust.

[0164] Combine the following Fig.14 and Fig.15 The specific connection method of the two tubular structural members, the subassembly support tube 500 and the snap member 29, is described below.

[0165] Fig.14 A partial enlarged view showing the connection between the snap member 29 and the subassembly support tube 500; Fig.15 A cross-sectional view showing the connection between the clip 29 and the subassembly support tube 500.

[0166] like Fig.14 and Fig.15 As shown, the fastener 29 includes a hollow tube portion 291, and the hollow tube portion 291 is sleeved on the sub-assembly support tube 500, that is, the fastener 29 and the sub-assembly support tube 500 are initially sleeved and then further fixedly connected by a plastic screw 31 and a plastic nut 311.

[0167] Specifically, the hollow tube 291 (which may be referred to as the first structural member) includes a Fig.15 The two first connection holes 290 are connected to each other in the radial direction of the hollow tube 291. Optionally, the cross section of the hollow tube 291 is in an arc shape larger than a semicircle, but those skilled in the art will appreciate that the hollow tube 291 may also be in a complete circular shape.

[0168] The subassembly support tube 500 (which may be referred to as the second structural member) is provided with a Fig.15The two second connection holes 502 penetrate the subassembly support tube 500 (as shown in the R2 direction), and the two second connection holes 502 correspond to and are connected in the radial direction of the subassembly support tube 500.

[0169] The hollow tube portion 291 is sleeved outside the subassembly support tube 500 , and the two first connection holes 290 and the two second connection holes 502 correspond to each other and are interconnected.

[0170] like Fig.15 As shown, the plastic screw 31 includes a screw rod 310 (as a connecting body), and the screw rod 310 is used to pass through the two first connecting holes 290 and the two second connecting holes 502. The two ends of the screw rod 310 are respectively a nut 311 (as a stopper) and a screw head 312 (as a stopper) made of plastic material, and the nut 311 and the screw head 312 are respectively located on two opposite sides of the outer circumference of the hollow tube 291 in the radial direction.

[0171] A first gasket 321 (serving as a first sealing portion) made of plastic is disposed on one side of the nut 311 facing the screw head 312, and a second gasket 322 (serving as a first sealing portion) made of plastic is disposed on one side of the screw head 312 facing the nut 311. The first gasket 311 and the second gasket 312 have the same structure, and both have the following features: Figure 7 The contoured surface (as the first contoured surface) shown matching the arc surface of the hollow tube portion 291 has a set curvature so as to better fit with the arc surface of the hollow tube portion 291, thereby achieving the sealing effect of the first gasket 321 and the second gasket 322 described later.

[0172] Specifically, the first gasket 321 is located between the nut 311 and the hollow tube portion 291. The nut 311 presses the first gasket 321 against the surface of the hollow tube portion 291, so that the contoured surface (i.e., arc surface) of the first gasket 321 fits with the surface (i.e., arc surface) of the hollow tube portion 291, thereby forming a first connection hole 290 (e.g., Fig.15 The sealing of the orifice of the first connecting hole on the left side shown.

[0173] Similarly, the second gasket 322 is located between the screw head 312 of the plastic screw 31 and the hollow tube portion 291. The screw head 312 presses the second gasket 322 against the surface of the hollow tube portion 291, so that the contoured surface (i.e., the arc surface) of the second gasket 322 fits with the surface (i.e., the arc surface) of the hollow tube portion 291, thereby forming a first connection hole 290 (e.g., Fig.15 Sealing of the orifice of the first connecting hole on the right side shown.

[0174] In this way, the first gasket 311 and the second gasket 312 form a seal at the openings of the two first connecting holes 290 on the hollow tube portion 291, thereby preventing liquid from leaking into the sub-assembly support tube 500 through the two first connecting holes 290 and then through the two second connecting holes 502, causing corrosion of the sub-assembly support tube 500.

[0175] In summary, this embodiment uses the screw rod 310 of the screw 31 made of plastic material as the connecting body, the first gasket 321 and the second gasket 322 made of plastic material as the sealing part, and the nut 311 made of plastic material and the screw head 312 of the screw 31 made of plastic material as the limiter, which ensures the reliable connection between the hollow tube portion 291 and the sub-assembly support tube 500 while avoiding the hollow tube portion 291 and the sub-assembly support tube 500 from contacting other metal structures (such as metal screws), and also avoids leakage in the first connecting hole 290 of the hollow tube portion 291, causing liquid to flow into the second handrail tube 402 through the hollow tube portion 291, thereby causing the hollow tube portion 291 and the second handrail tube 402 to rust.

[0176] Combine the following Fig.10 , Fig.16 and Fig.17 The specific connection method of the two tubular structural members, the second support tube 300 and the sleeve 600 of the support pad 6, is described below.

[0177] Fig.16 A partial enlarged view showing the connection between the sleeve 600 and the second support tube 300; Fig.17 A cross-sectional view showing the connection between the sleeve 600 and the second support tube 300 .

[0178] like Fig.16 As shown, the support pad 6 includes a sleeve 600, which is sleeved on the second support tube 300, that is, the sleeve 600 and the second support tube 300 are initially sleeved and then fixedly connected by a screw 34 made of plastic and a nut 341 made of plastic.

[0179] Specifically, the sleeve 600 (which may be referred to as the first structural member) includes a Fig.17 The two first connecting holes 601 penetrate the sleeve 600 in the radial direction and are connected.

[0180] like Fig.10 As shown, the second support tube 300 (which may be referred to as the second structural member) includes a Fig.10 The two second connection holes 301 penetrate the second support tube 300 (as shown in the R2 direction), that is, the two second connection holes 301 correspond to and are connected in the radial direction of the second support tube 300.

[0181] The sleeve 600 is sleeved outside the second support tube 300 , and the two first connection holes 601 correspond to the two second connection holes 301 one by one and are connected to each other.

[0182] like Fig.17 As shown, the above-mentioned screw 34 made of plastic material includes a screw rod 340 (as a connecting body), and the screw rod 340 is used to pass through the two first connecting holes 601 and the two second connecting holes 301. The two ends of the screw rod 340 are respectively a nut 341 (as a stopper) and a screw head 342 (as a stopper) made of plastic material, and the nut 341 and the screw head 342 are respectively located on two opposite sides of the outer circumference of the sleeve 600 in the radial direction.

[0183] A first gasket 351 (serving as a first sealing portion) made of plastic is disposed on one side of the nut 341 facing the screw head 342, and a second gasket 352 (serving as a first sealing portion) made of plastic is disposed on one side of the screw head 342 facing the nut 341. The first gasket 351 and the second gasket 352 have the same structure, and both have the following features: Figure 7 The contoured surface (as the first contoured surface) that matches the arc surface of the sleeve 600 has a set curvature to better fit the arc surface of the sleeve 600, thereby achieving the sealing effect of the first gasket 351 and the second gasket 352 described later.

[0184] Specifically, the first gasket 351 is located between the nut 341 and the sleeve 600, and the nut 341 presses the first gasket 351 against the surface of the sleeve 600, so that the contoured surface (i.e., the arc surface) of the first gasket 351 fits with the surface (i.e., the arc surface) of the sleeve 600, thereby forming a first connection hole 601 (e.g., Fig.17 The sealing of the orifice of the first connecting hole on the left side shown.

[0185] Similarly, the second gasket 352 is located between the screw head 342 made of plastic and the sleeve 600. The screw head 342 presses the second gasket 352 against the surface of the sleeve 600, so that the contoured surface (i.e., arc surface) of the second gasket 352 fits with the surface (i.e., arc surface) of the sleeve 600, thereby forming a connection with another first connecting hole 601 (e.g., Fig.17 Sealing of the orifice of the first connecting hole on the right side shown.

[0186] In this way, the first gasket 351 and the second gasket 352 form a seal at the openings of the two first connecting holes 601 on the sleeve 600 to prevent liquid from leaking into the sleeve 600 from the two first connecting holes 601 and causing corrosion of the second support tube 300 located in the sleeve 600.

[0187] In summary, this embodiment uses the screw rod 340 of the screw 34 made of plastic material as the connecting body, the first gasket 351 and the second gasket 352 made of plastic material as the sealing part, and the nut 341 made of plastic material and the screw head 342 of the screw 34 made of plastic material as the limiter, which ensures the reliable connection between the sleeve 600 and the second support tube 300 while avoiding the second support tube 300 from contacting other metal structures (such as metal screws), and also avoids leakage in the first connecting hole 601 of the sleeve 600, causing liquid to enter the sleeve 600, thereby causing the second support tube 300 in the sleeve 600 to rust.

[0188] In addition, refer to Figure 8 In the above-mentioned embodiments regarding the connection between the second support tube 300 and the second handrail tube 402, and the second handrail tube 402 and the rotating assembly 10, the second support tube 300, the second handrail tube 402 and the rotating assembly 10 are fixedly connected by a set of plastic screws 15 and plastic nuts 151, but those skilled in the art will appreciate that in other embodiments, the second support tube 300 and the second handrail tube 402 may be fixedly connected by a set of plastic screws and plastic nuts (such as the first support tube 200 and the first handrail tube 401 described above), and the second handrail tube 402 and the rotating assembly 10 may be fixedly connected by another set of plastic screws and plastic nuts.

[0189] So far, the connection between tubular structural members and tubular structural members in the present application has been described in detail and by way of example. However, those skilled in the art can understand that in other embodiments, the connection between tubular structural members and tubular structural members is not limited thereto, that is, any two tubular structural members in the escalator 1 can be connected in this manner, for example, the first support tube can be composed of multiple tubular structural members, and each two adjacent tubular structural members can be fixedly connected by plastic screws and plastic nuts, and the screw holes (i.e., the above-mentioned first connection holes and second connection holes) can be sealed by plastic first gaskets and second gaskets.

[0190] Combine the following Figure 6 , Fig.18 and Fig.19 The specific connection method of the two tubular structural members, namely the first handrail tube 401 and the reinforcing plate 17, and the plate-like structural member will be described.

[0191] Fig.18 A partial perspective view showing the connection between the first handrail tube 401 and the reinforcing plate 17; Fig.19 A cross-sectional view showing the connection between the first handrail tube 401 and the reinforcing plate 17 is shown.

[0192] like Fig.18As shown, one end of the reinforcing plate 17 is in contact with the surface of the first handrail tube 401 , and the two are fixedly connected by a screw 18 made of plastic material and a nut 182 made of plastic material.

[0193] Specifically, if Figure 6 and Fig.19 As shown, the first handrail tube 401 (which may be referred to as the first structural member) of the handrail portion 4 includes a first structural member along its radial direction ( Fig.19 The two first connection holes 405 penetrate the first handrail tube 401 (as shown in the R1 direction), and the two first connection holes 405 correspond to and are connected in the radial direction of the first handrail tube 401.

[0194] like Fig.18 and Fig.19 As shown, one end of the reinforcing plate 17 (which may be referred to as the second structural member) includes a second connecting hole 170 , and the second connecting hole 170 corresponds to and communicates with one of the two first connecting holes 405 .

[0195] like Fig.19 As shown, the plastic screw 18 includes a screw rod 180 (as a connecting body), and the screw rod 180 is used to pass through the two first connecting holes 405 and the second connecting hole 170. The two ends of the screw rod 180 are respectively a nut 182 (as a second stopper) and a screw head 181 (as a first stopper) made of plastic material, the nut 182 is located on the side where the reinforcing plate 17 is provided, and the screw head 181 is located on the side of the first handrail tube 401.

[0196] A first gasket 191 (serving as a first sealing portion) made of plastic is disposed on the side of the screw head 181 facing the nut 182, and a second gasket 192 (serving as a second sealing portion) made of plastic is disposed on the side of the nut 182 facing the screw head 181. The first gasket 191 has a Figure 7 The contoured surface shown matches the arc surface of the first handrail tube 401 (as the first contoured surface), and the second gasket 192 has a contoured surface (as the second contoured surface) matching the surface of the reinforcing plate 17, that is, the first gasket 191 has the same curvature as the arc surface of the first handrail tube 401, so as to better fit the arc surface of the first handrail tube 401, and the second gasket 192 is a flat gasket, so as to better fit the plane of the reinforcing plate 17, thereby realizing the sealing effect of the first gasket 191 and the second gasket 192 described later.

[0197] Specifically, the first gasket 191 is located between the screw head 181 of the plastic screw 18 and the first handrail tube 401. The screw head 181 presses the first gasket 191 against the surface of the first handrail tube 401, so that the contoured surface (i.e., the arc surface) of the first gasket 191 fits with the arc surface of the first handrail tube 401, thereby forming a first connection hole 405 (e.g., the first handrail tube 401) on the first handrail tube 401. Fig.19 The sealing of the orifice of the first connecting hole on the left side shown in the figure prevents liquid from directly entering the first handrail tube 401 from the first connecting hole 405, thereby causing rust on the first handrail tube 401.

[0198] Similarly, the second gasket 192 is located between the nut 182 and the reinforcing plate 17. The nut 182 presses the second gasket 192 against the surface of the reinforcing plate 17 so that the contoured surface (i.e., the plane) of the second gasket 192 fits with the surface of the reinforcing plate 17, thereby forming a seal for the opening of the second connecting hole 170, preventing liquid from flowing into the second connecting hole 170 of the reinforcing plate 17 and flowing through the first connecting hole 405, thereby entering the first handrail tube 401 and causing rust on the first handrail tube 401.

[0199] In summary, this embodiment adopts the screw rod 180 of the screw 18 made of plastic material as the connecting body, the screw head 181 as the first limiting member, the nut 182 made of plastic material as the second limiting member, and the first gasket 191 and the second gasket 192 made of plastic material as the sealing part, which ensures the reliable connection between the first handrail tube 401 and the reinforcement plate 17 while avoiding the first handrail tube 401 and the reinforcement plate 17 from contacting other metal structures (such as metal screws), and also avoids leakage in the second connecting hole 170 of the reinforcement plate 17 or the first connecting hole 405 of the first handrail tube 401, causing liquid to enter the first handrail tube 401, thereby causing the first handrail tube 401 to rust.

[0200] Similarly, the other end of the second handrail tube 402 (which may be referred to as the first structural member) of the handrail portion 4 and the reinforcing plate 17 (which may be referred to as the second structural member) are also connected in the same manner as described above, and this application will not elaborate on this.

[0201] Combine the following Fig. 9 , Fig.11 , Fig.13 as well as Fig. 20 and Fig.21 The specific connection method of the two tubular structural members, the rotating tube portion 210 and the U-shaped connecting member 14 of the rotating assembly 10 and the plate-like structural member is described below.

[0202] Fig. 20 A cross-sectional view showing the connection between the rotating body 21 and the U-shaped connecting member 14; Fig.21 A perspective view of the U-shaped plate 144 is shown.

[0203] like Fig. 9 and Fig. 20 As shown, the rotating assembly 10 includes a rotating body 21 and a U-shaped connecting member 14. The rotating body 21 includes a rotating tube 210, and the length direction of the rotating tube 210 ( Fig. 9Both ends of the U-shaped connector 14 (shown in the X direction) are fitted with the U-shaped connector 14, and the two are fixedly connected by a plastic screw 23 and a plastic nut 231.

[0204] Specifically, if Fig.13 As shown, the rotating tube 210 (which may be referred to as the first structural member) includes a plurality of Fig.13 The first connecting hole 211 (shown in the X direction) passes through.

[0205] like Fig. 9 , Fig. 20 and Fig.21 As shown, the U-shaped connector 14 further includes a U-shaped plate 144 , which (can be referred to as a second structural member) includes a first fixing portion 145 and a second fixing portion 146 connected to each other, and the first fixing portion 145 and the second fixing portion 146 include a second connecting hole 147 that is connected to each other.

[0206] refer to Fig.13 and Fig. 20 The rotating tube 210 is located between the first fixing portion 145 and the second fixing portion 146, the first fixing portion 145 fits with one end 212 of the rotating tube 210, the second connecting hole 147 on the first fixing portion 145 corresponds to and is connected with one opening of the first connecting hole 211 of the rotating tube 210, the second fixing portion 146 fits with the other end 213 of the rotating tube 210, the second connecting hole 147 on the second fixing portion 146 corresponds to and is connected with the other opening of the first connecting hole 211 of the rotating tube 210.

[0207] like Fig. 20 As shown, the plastic screw 23 includes a screw rod 230 (as a connecting body), and the screw rod 230 is used to pass through the two second connecting holes 147 and the first connecting hole 211. The two ends of the screw rod 230 are a nut 231 (as a stopper) and a screw head 232 (as a stopper) made of plastic material, respectively. The nut 231 is located outside the first fixing portion 145, and the screw head 232 is located outside the second fixing portion 146.

[0208] A first gasket 241 (serving as a second sealing portion) made of plastic material is disposed on one side of the nut 231 facing the screw head 232, and a second gasket 242 (serving as a second sealing portion) made of plastic material is disposed on one side of the screw head 232 facing the nut 231. The first gasket 241 has a contoured surface (serving as a second contoured surface) matching the plane of the first fixing portion 145, so that the first gasket 241 and the surface of the first fixing portion 145 can be fitted. The second gasket 242 has a contoured surface (serving as a second contoured surface) matching the plane of the second fixing portion 146, so that the second gasket 242 and the surface of the second fixing portion 146 can be fitted. Specifically, the first gasket 241 and the second gasket 242 are both flat gaskets.

[0209] Specifically, the first gasket 241 is located between the nut 231 and the first fixing portion 145. The nut 231 presses the first gasket 241 against the surface of the first fixing portion 145, so that the contoured surface (i.e., the plane) of the first gasket 241 fits with the surface of the first fixing portion 145, thereby forming a second connection hole 147 (such as Fig. 20 The sealing of the orifice of the second connecting hole on the left side shown.

[0210] Similarly, the second gasket 242 is located between the screw head 232 and the second fixing portion 146. The screw head 232 presses the second gasket 242 against the surface of the second fixing portion 146, so that the contoured surface (i.e., the plane) of the second gasket 242 fits with the surface of the second fixing portion 146, thereby forming another second connecting hole 147 (such as Fig. 20 The sealing of the orifice of the second connecting hole on the right side shown.

[0211] In this way, the first gasket 241 and the second gasket 242 form a seal at the openings of the two second connecting holes 147 on the U-shaped plate 144 to prevent liquid from leaking into the first connecting hole 211 of the rotating tube 210 through the two second connecting holes 147 and causing corrosion of the rotating tube 210.

[0212] In addition, if Fig.11 As shown, the U-shaped connector 14 also includes a U-shaped jacket 25, which is arranged around the U-shaped plate 144 and fits with the U-shaped plate 144. Both sides of the U-shaped jacket 25 are provided with a longitudinal direction ( Fig.11 The first convex portion 251 and the second convex portion 252 are convex outward (as shown in the X direction), the first convex portion 251 is provided with a first through hole 253, and the second convex portion 252 is provided with a second through hole 254. The first through hole 253 and the second through hole 254 are connected with the first connecting hole 211 in the length direction of the rotating tube portion 210, so that the nut 231 is partially located in the first through hole 253, and the screw head 232 is partially located in the second through hole 254.

[0213] In summary, this embodiment uses the screw rod 230 of the screw 23 made of plastic material as the connecting body, the nut 231 and the screw head 232 made of plastic material as the limit members, the first gasket 241 and the second gasket 242 made of plastic material as the second sealing part, which ensures the reliable connection between the rotating tube portion 210 and the U-shaped connecting member 14 while avoiding the rotating tube portion 210 and the U-shaped connecting member 14 from contacting other metal structures (such as metal screws), and also avoids leakage in the second connecting hole 147 of the U-shaped connecting member 14, causing liquid to enter the rotating tube portion 210, thereby causing the rotating tube portion 210 to rust.

[0214] So far, the present application has also provided an exemplary and detailed description of the connection between the tubular structural members and the plate-like structural members, but those skilled in the art will appreciate that in other embodiments, the connection between the tubular structural members and the plate-like structural members is not limited thereto, that is, any tubular structural members and plate-like structural members in the escalator that require connection can be considered to be connected in this manner based on actual conditions.

[0215] In all the above embodiments, the screw rod of the screw made of plastic material is used as the connecting body, and the screw head and nut made of plastic material are used as the limiting member. However, those skilled in the art can understand that in other embodiments, the connecting body can also be other connecting methods such as screws, and the limiting member is the screw head and nut accordingly.

[0216] In the above embodiments, screws and nuts are usually tightened by tools (such as wrenches, pliers, etc.). However, in other embodiments, screws and nuts with hand-tightening structures can also be used to tighten the screws and nuts manually, thereby avoiding direct contact between the tightening tools and the various structural parts of the escalator, damaging the coatings of the various structural parts on the escalator and causing the product to rust.

[0217] Specifically, Fig. 22 As shown, compared with the screws and nuts of the tool-tightening structure, the radial dimensions of the nut 361 and the screw head 362 of the hand-tightening structure are larger, and the nut 361 and the screw head 362 are provided with concave and convex patterns 363 to increase friction, so that the installer can directly hand-tighten the nut 361 and the screw head 362, thereby achieving the tightening of the nut 361 and the screw rod 360 and ensuring the reliability of the connection.

[0218] In all the above embodiments, the screws and nuts are made of hard plastic, such as nylon, POM (polyoxymethylene resin), PC (polycarbonate), PPS (polyphenylene sulfide), etc. The first gasket and the second gasket are made of soft plastic or elastic soft rubber, such as PVC (polyvinyl chloride), TPU (thermoplastic polyurethane rubber), TPE (thermoplastic elastomer), etc. However, the present application does not limit the specific material of the screws, nuts, first gaskets, and second gaskets, as long as they are non-metallic materials.

[0219] Combination Figure 23 to Figure 25 , the specific connection method between the support pad 6 and the sub-assembly support tube 500 is described.

[0220] Fig.23 A partial enlarged view showing the connection between the support pad 6 and the subassembly support tube 500; Fig.24 A partial enlarged view showing the guide member 603 supported on the support pad 6; Fig.25 A cross-sectional view showing the connection of the guide member 603 to the subassembly support tube 500.

[0221] The above-mentioned support pad 6 includes a receiving groove 602, and the subassembly support tube 500 is supported in the receiving groove 602 by a guide member 603 made of non-metallic material, and the subassembly support tube 500 is located outside the receiving groove 602. That is, the bottom of the subassembly support tube 500 is higher than the support pad 6 and its receiving groove 602, and the subassembly support tube 500 cannot directly contact the support pad 6, thereby avoiding direct contact between the subassembly support tube 500 and the support pad 6 and friction, thereby damaging the coating on the subassembly support tube 500 and causing the subassembly support tube 500 to rust.

[0222] Optionally, the guide member 603 includes a threaded portion 604 and a tube portion 605, the threaded portion 604 is located outside the accommodating groove 602, and a portion of the tube portion 605 is located inside the accommodating groove 602, and the threaded portion 604 is provided with an external thread and is sleeved in the sub-assembly support tube 500, so that the threaded portion 604 of the guide member 603 and the sub-assembly support tube 500 are connected by threads.

[0223] A stop surface 606 is provided at the connection between the threaded portion 604 and the tube portion 605 , and the bottom of the subassembly support tube 500 abuts against the stop surface 606 , thereby further ensuring the reliability of the connection between the guide member 603 and the subassembly support tube 500 .

[0224] In the above-mentioned embodiment, a guide member is arranged between the support pad and the sub-assembly support tube to avoid friction between the sub-assembly support tube and the support pad when the user climbs the pedal on the sub-assembly support tube. However, those skilled in the art will understand that for an ordinary escalator (which does not have a ladder sub-assembly and has pedals installed between a pair of second support tubes), it is necessary to install a guide member between the second support tube and the support pad to avoid friction between the second support tube and the support pad when the user climbs the pedal on the second support tube.

[0225] Specifically, the second support tube is supported in the receiving groove by a guide member made of non-metallic material, and the second support tube is located outside the receiving groove. That is, one end of the guide member is located in the receiving groove, and the other end extends out of the receiving groove and is connected to the second support tube, so as to avoid direct contact and friction between the second support tube and the support pad, thereby damaging the coating on the second support tube and causing rust on the second support tube.

[0226] The guide members in the above two embodiments are both made of plastic, but the present application does not impose any limitation on this, and the guide members may also be made of other materials such as rubber.

[0227] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above contents are further detailed descriptions of the present invention in combination with specific embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. Those skilled in the art may make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. An escalator, characterized in that: include: A first structural member including a first connecting hole; A second structural member includes a second connecting hole, wherein the first connecting hole corresponds to the second connecting hole; A connecting part made of plastic material, the connecting part comprising a connecting body, the connecting body passing through the first connecting hole and the second connecting hole to achieve connection between the first structural member and the second structural member; a first sealing portion made of plastic material, the first sealing portion comprising a first contoured surface matching the surface of the first structural member, the first contoured surface being configured to fit the surface of the first structural member; and / or, The second sealing portion is made of plastic material, wherein the second sealing portion comprises a second contoured surface matching the surface of the second structural member, and the second contoured surface is configured to fit the surface of the second structural member.

2. The escalator according to claim 1, characterized in that The first structural member and the second structural member are both tubular structural members, the first structural member is sleeved on the second structural member, the surface of the first structural member includes an arc surface, the first contoured surface is an arc surface, and the arc surface of the first contoured surface fits the arc surface of the first structural member.

3. The escalator according to claim 1, characterized in that The first structural member and the second structural member are both tubular structural members, the first structural member is sleeved on the second structural member, the surface of the first structural member includes a plane, the first contoured surface is a plane, and the plane of the first contoured surface fits the plane of the first structural member.

4. The escalator according to claim 2 or 3, characterized in that: The connecting portion further includes a limiting member, and the first sealing portion is located between the limiting member and the first structural member.

5. The escalator according to claim 4, characterized in that The connecting body includes a screw rod, and the limiting member includes a nut and a screw head, and the nut and the screw head are respectively located at two ends of the screw rod; the first sealing part includes a first gasket and a second gasket, the first gasket is located between the nut and the first structural member, and the second gasket is located between the screw head and the first structural member.

6. The escalator according to claim 1, characterized in that The first structural member is a tubular structural member, the second structural member is a plate-shaped structural member, the tubular structural member and the plate-shaped structural member are fitted together; the surface of the tubular structural member includes an arc surface, the first profiling surface is an arc surface, and the arc surface of the first profiling surface is fitted together with the arc surface of the tubular structural member; The surface of the plate-like structural member includes a plane, the second contoured surface is a plane, and the plane of the second contoured surface is in contact with the plane of the plate-like structural member.

7. The escalator according to claim 6, characterized in that The connecting portion further includes a first limiting member and a second limiting member, wherein the first limiting member and the second limiting member are respectively located at two ends of the connecting body; the first sealing portion is located between the first limiting member and the first structural member, and the second sealing portion is located between the second limiting member and the second structural member.

8. The escalator according to claim 7, characterized in that The connecting body includes a screw rod, the first limiting member includes a screw head, and the second limiting member includes a nut; the first sealing portion includes a first gasket, and the first gasket is located between the screw head and the first structural member; the second sealing portion includes a second gasket, and the second gasket is located between the nut and the second structural member.

9. The escalator according to claim 1, characterized in that The first structural member includes a tubular structural member, and the second structural member includes a plate-like structural member. Both ends of the tubular structural member along its length direction are respectively in contact with the plate-like structural member. The surface of the plate-like structural member includes a plane, and the second contoured surface is a plane. The plane of the second contoured surface is in contact with the plane of the plate-like structural member.

10. The escalator according to claim 9, characterized in that The connecting portion further includes a limiting member, and the second sealing portion is located between the limiting member and the second structural member.

11. The escalator according to claim 10, characterized in that The connecting part body includes a screw rod, and the limiting part includes a nut and a screw head, and the nut and the screw head are respectively located at two ends of the screw rod; the second sealing part includes a first gasket and a second gasket, the first gasket is located between the nut and the second structural member, and the second gasket is located between the screw head and the second structural member.

12. The escalator according to claim 5, characterized in that Also includes: The handrail portion includes a first handrail tube, the first structural member includes the first handrail tube, and the first handrail tube includes two first connecting holes penetrating along the radial direction thereof; The first ladder part includes a first support tube, the second structural member includes the first support tube, and the first support tube includes two second connection holes penetrating along the radial direction thereof; The first handrail tube is sleeved outside the first supporting tube.

13. The escalator according to claim 5, characterized in that Also includes: The handrail portion includes a second handrail tube, the first structural member includes the second handrail tube, and the second handrail tube includes two first connecting holes penetrating along the radial direction thereof; The second ladder portion includes a second support tube, the second structural member includes the second support tube, and the second support tube includes two second connection holes penetrating radially thereof; The second handrail tube is sleeved outside the second supporting tube.

14. The escalator according to claim 5, characterized in that Also includes: The support pad includes a sleeve, the first structural member includes the sleeve, and the sleeve includes two first connecting holes penetrating along the radial direction thereof; The second ladder portion includes a second support tube, the second structural member includes the second support tube, and the second support tube includes two second connection holes penetrating radially thereof; The sleeve is sleeved outside the second supporting tube.

15. The escalator according to claim 5, characterized in that Also includes: A ladder subassembly, including a clip and a subassembly support tube; The buckle member includes a hollow tube portion, the first structural member includes the hollow tube portion, and the hollow tube portion includes two first connecting holes penetrating along the radial direction thereof; The second structural member includes the subassembly support tube, and the subassembly support tube includes two second connection holes penetrating radially therethrough; The hollow tube portion is sleeved outside the subassembly support tube.

16. The escalator according to claim 5, characterized in that Also includes: The rotating assembly comprises a rotating body, the rotating body comprises a connecting pipe portion, the first structural member comprises the connecting pipe portion, and the connecting pipe portion comprises two first connecting holes penetrating along the radial direction thereof; A ladder subassembly, comprising a subassembly support tube, wherein the second structural member comprises the subassembly support tube, and the subassembly support tube comprises two second connection holes extending radially therethrough; The connecting pipe portion is sleeved outside the subassembly supporting pipe.

17. The escalator according to claim 5, characterized in that Also includes: The rotating assembly comprises a U-shaped connecting member, wherein the U-shaped connecting member comprises a cylindrical portion, the first structural member comprises the cylindrical portion, and the cylindrical portion comprises two first connecting holes penetrating radially thereof; The handrail portion includes a second handrail tube, the second structural member includes the second handrail tube, and the second handrail tube includes two second connecting holes penetrating along the radial direction thereof; The cylindrical portion is sleeved on the second handrail tube.

18. The escalator according to claim 8, characterized in that Also includes: The handrail portion includes a first handrail tube, the first structural member includes the first handrail tube, and the first handrail tube includes two first connecting holes penetrating along the radial direction thereof; A reinforcing plate, wherein the second structural member includes the reinforcing plate, and one end of the reinforcing plate includes the second connecting hole.

19. The escalator according to claim 8, characterized in that Also includes: The handrail portion includes a second handrail tube, the first structural member includes the second handrail tube, and the second handrail tube includes two first connecting holes penetrating along the radial direction thereof; A reinforcing plate, wherein the second structural member includes the reinforcing plate, and the other end of the reinforcing plate includes the second connecting hole.

20. The escalator according to claim 11, characterized in that Also includes: A rotating assembly, comprising a rotating body and a U-shaped connecting piece; The rotating body includes a rotating tube portion, the first structural member includes the rotating tube portion, and the rotating tube portion includes the first connecting hole penetrating along the length direction thereof; The U-shaped connecting member includes a U-shaped plate, the second structural member includes the U-shaped plate, the U-shaped plate includes a first fixing portion and a second fixing portion, the first fixing portion and the second fixing portion include the second connecting hole that is connected to each other; Two ends of the rotating tube along its length direction are respectively fitted with the first fixing part and the second fixing part.

21. The escalator according to claim 5 or 11, characterized in that: The limiting member is provided with concave-convex patterns.

22. The escalator according to claim 12, characterized in that Also includes: A bushing made of plastic material is sleeved outside the first support tube, and at least a portion of the bushing is located between the first support tube and the first handrail tube to achieve a non-contact connection between the first support tube and the first handrail tube.

23. The escalator according to claim 22, characterized in that The bushing includes a first part and a second part, the second part of the bushing includes a first arc surface, the first support tube includes a second arc surface, the first arc surface and the second arc surface abut against each other to limit the bushing from sliding down along the length direction of the first support tube.

24. The escalator according to claim 23, characterized in that Along the radial direction of the first support tube, the first portion is located between the first support tube and the first handrail tube; the second portion includes a stop surface, and the bottom of the first handrail tube abuts against the stop surface.

25. The escalator according to claim 13, characterized in that Also includes: Guides made of plastic; A support pad, used to be placed on the ground, the support pad comprising a receiving groove; The second support tube is supported in the accommodating groove by the guide member, and the second support tube is located outside the accommodating groove.

26. The escalator according to claim 15, characterized in that Also includes: Guides made of plastic; A support pad, used to be placed on the ground, the support pad comprising a receiving groove; The subassembly support tube is supported in the accommodating groove by the guide member, and the subassembly support tube is located outside the accommodating groove.

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