Lower rail type shower room sliding door

By using a bottom-track sliding door structure for the shower enclosure, the sliding glass door and the fixed glass door are on the same plane, which solves the problems of inconvenience in cleaning and aesthetics when the existing shower enclosure sliding door is closed, and achieves better water blocking effect and simple appearance.

CN223787559UActive Publication Date: 2026-01-13GUANGDONG GRACE SANITARY WARE CO LTD
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Patent Information

Application Number
CN202520164534.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-24
Publication Date
2026-01-13
Estimated Expiration
2035-01-24

AI Technical Summary

Technical Problem

The existing sliding glass doors of shower rooms overlap with the fixed glass doors when closed, which is inconvenient, makes cleaning difficult, reduces the opening width, and has an unsatisfactory water-blocking effect, affecting the aesthetics.

Method used

The shower room adopts a bottom-track sliding door structure. The sliding glass door is slidably connected to the bottom guide rail through a pulley system and can move back and forth after it is in place. The sliding glass door and the fixed glass door are coplanar. The swing arm and elastic components are used to improve the reliability and stability of the movement. Combined with the upper guide rail and limit block, the smoothness and waterproof performance of the sliding glass door are improved.

Benefits of technology

By achieving coplanarity between the sliding and fixed glass doors, the waterproof performance and aesthetics of the shower enclosure are improved, while the structure is simplified, enhancing the user experience and product stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a lower rail type shower room sliding door which comprises a lower guide rail and a sliding glass door, a pulley block is arranged on the sliding glass door, the sliding glass door comprises a lower frame, a cavity is formed in the lower frame, the pulley block comprises a wheel carrier and idler wheels, the idler wheels are installed on the wheel carrier, the wheel carrier is movably arranged in the cavity, and the lower guide rail is arranged on the lower guide rail. The wheel carrier can move front and back relative to the cavity, the rolling wheels are connected with the lower guide rail in a sliding mode, and the lower guide rail extends in the left-right direction. The lower frame and the wheel carrier move back and forth relatively, so that the sliding glass door can move back and forth relatively after moving in place, and the sliding glass door and the fixed glass door can be coplanar; meanwhile, the wheel carrier is integrally arranged in the cavity, so that the pulley block cannot be seen from the appearance, and the shower room is more attractive and simpler.
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Description

Technical Field

[0001] This utility model relates to a shower room, and more particularly to a sliding shower room door. Background Technology

[0002] Currently, shower enclosure sliding doors on the market typically employ either a sliding door structure or a hinged door structure. Sliding doors generally include a fixed door and a movable door that moves along the width of the fixed door. The movable and fixed doors are usually offset along the thickness of the fixed door, with the movable door overlapping the fixed door in the thickness direction when open. Furthermore, to prevent water from leaking out of the shower enclosure through the gap between the fixed and movable doors during showering, and to better achieve wet and dry separation, the movable door is designed to overlap the fixed door even when closed. This overlap can make cleaning somewhat inconvenient and also reduces the opening width. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a bottom-track type shower room sliding door to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0004] The solution to the technical problem of this utility model is: a bottom-track type shower room sliding door, including a bottom guide rail and a sliding glass door. The sliding glass door is provided with a pulley assembly. The sliding glass door includes a bottom frame with a cavity. The pulley assembly includes a wheel frame and rollers. The rollers are mounted on the wheel frame. The wheel frame is movably disposed in the cavity. The wheel frame can move back and forth relative to the cavity. The rollers are slidably connected to the bottom guide rail. The bottom guide rail extends in the left and right direction.

[0005] The beneficial effects of this utility model are: by utilizing the relative forward and backward movement of the lower frame and the wheel frame, the sliding glass door can move back and forth relative to each other after it is moved into place, so that the sliding glass door can be coplanar with the fixed glass door; at the same time, since the wheel frame is set in the cavity, the pulley group is not visible from the appearance, making the shower room more beautiful and simple.

[0006] As a further improvement to the above technical solution, a swing arm is provided in the cavity. One end of the swing arm is hinged to the lower frame, and the other end is hinged to the wheel frame. The swing arm allows the lower frame and the wheel frame to flip, making the forward and backward movement of the glass door simpler and more reliable.

[0007] As a further improvement to the above technical solution, the wheel frame is provided with a mounting cavity, and the end of the swing arm is fitted into the mounting cavity. Embedding the swing arm in the mounting cavity simplifies the structure of the shower room, while improving the load-bearing strength of the swing arm and enhancing the stability of the shower room.

[0008] As a further improvement to the above technical solution, the lower guide rail includes a guide section, and the swing arm further includes a guide rod, which abuts against the guide section. The cooperation between the guide rod and the guide section drives the lower frame to move in the forward and backward direction.

[0009] As a further improvement to the above technical solution, the guide rod is equipped with a clamping wheel, which is connected to the guide section. The clamping wheel further improves the reliability and stability of the sliding glass door's forward and backward movement.

[0010] As a further improvement to the above technical solution, an elastic element is also provided between the swing arm and the lower frame. The elastic element makes opening and closing the sliding glass door easier and requires less effort.

[0011] As a further improvement to the above technical solution, the upper surface of the lower frame includes a glass groove and an installation port, the installation port communicating with the cavity. A cover plate is also provided on the lower frame, the cover plate being fastened to the lower frame and covering the installation port. The installation port facilitates the installation of the shower enclosure, while the cover plate blocks the installation port, improving the waterproof performance and aesthetics of the shower enclosure.

[0012] As a further improvement to the above technical solution, an upper guide rail is also included, and the sliding glass door includes an upper frame, which is slidably connected to the upper guide rail.

[0013] As a further improvement to the above technical solution, the bottom surface of the upper guide rail is provided with a guide groove, the guide groove including a curved section that bends along the front-to-back direction; the upper frame is provided with a positioning pin, which is fitted into the guide groove. The cooperation between the upper guide rail and the upper frame improves the reliability and smoothness of the sliding glass door's movement.

[0014] As a further improvement to the above technical solution, a guide seat is provided at the end of the upper guide rail, a limiting block is provided on the guide seat, and a limiting groove is provided on the upper frame, with the limiting block engaging in the limiting groove. The cooperation between the guide seat and the limiting groove further improves the reliability and smoothness of the sliding glass door's movement. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly explained below. Obviously, the described drawings are only a part of the embodiments of this utility model, and not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the pulley block of this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the lower frame of this utility model;

[0019] Figure 4 This is a three-dimensional structural diagram of the upper guide rail of this utility model;

[0020] Figure 5 This is a three-dimensional structural diagram of the guide seat of this utility model;

[0021] Figure 6 This is a three-dimensional structural diagram of the upper frame of this utility model.

[0022] Figure label:

[0023] Lower guide rail 100, guide section 110, sliding glass door 200, lower frame 210, glass groove 211, mounting opening 212, cavity 220, upper frame 230, positioning pin 231, limiting groove 232, pulley block 300, wheel frame 310, mounting cavity 311, roller 320, swing arm 400, guide rod 410, clamping wheel 420, elastic element 430, upper guide rail 500, guide groove 510, bending section 511, guide seat 600, limiting block 610. Detailed Implementation

[0024] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the protection scope of this utility model. Preferred embodiments of this utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, enabling a person to intuitively and vividly understand each technical feature and overall technical solution of this utility model, but they should not be construed as limiting the protection scope of this utility model.

[0025] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0027] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly. Those skilled in the art can reasonably determine the specific meaning of these terms in this utility model based on the specific content of the technical solution. Furthermore, the various technical features in this invention can be combined interactively without contradicting each other.

[0028] In existing shower enclosure sliding doors, the traditional structure involves the sliding glass door and the fixed glass door being staggered in the front-to-back direction. Typically, the sliding glass door is positioned behind the fixed glass door (closer to the inside of the shower enclosure). Guided by a track, the sliding glass door moves back and forth in the left-to-right direction to open and close. However, because the sliding glass door's movement is a straight line, a water-blocking structure is needed on the front of the sliding glass door when it is closed. This water-blocking effect is not ideal, and the staggered arrangement of the sliding and fixed glass doors is not aesthetically pleasing.

[0029] Therefore, this utility model provides a shower room sliding door structure. By changing the movement trajectory of the sliding glass door, after the sliding glass door is in place, it can shift along the front-to-back direction, thereby making the fixed glass door and the sliding glass door coplanar. This allows for sealing using the sides of the sliding glass door and the fixed glass door, resulting in better water blocking. Furthermore, because the sliding glass door and the fixed glass door are coplanar when closed, the product is more aesthetically pleasing. Specifically, refer to... Figures 1-6 :

[0030] A bottom-track type shower room sliding door includes a column, a fixed glass door, and a bottom guide rail 100 located below the fixed glass door. The left and right ends of the bottom guide rail 100 are fixedly connected to the column. A sliding glass door 200 is slidably mounted on the bottom guide rail 100, and the sliding glass door can slide left and right relative to the fixed glass door. A bottom frame 210 is fixedly mounted on the lower side of the sliding glass door 200. The bottom frame 210 includes a cavity 220, and a pulley assembly 300 is provided in the cavity 220. The pulley assembly 300 includes a wheel frame 310 and rollers 320. The rollers 320 are mounted on the wheel frame 310 and are slidably connected to the bottom guide rail 100. The wheel frame 310 is movably connected to the bottom frame 210, and the bottom frame 210 can move back and forth relative to the wheel frame 310.

[0031] When the sliding glass door 200 is in the initial position (shower room is open), it is located behind the fixed glass door and overlaps with it. Then, the sliding glass door 200 is pulled to move left and right, and the wheel frame 310 moves in a straight line as it moves left and right. When the sliding glass door 200 is about to reach the end position (shower room is closed), the lower frame 210 moves back and forth relative to the wheel frame 310, so that the sliding glass door 200 moves forward synchronously. This allows the sliding glass door 200, which was originally behind the fixed glass door, to move forward. Finally, when the sliding glass door 200 reaches its final position, it is flush with the fixed glass door.

[0032] By adopting the above technical solution, the sliding glass door 200 can move back and forth relative to the lower guide rail 100, allowing it to be coplanar with the fixed glass door when closed, thus improving the waterproof performance and aesthetic simplicity of the shower enclosure. Simultaneously, the pulley assembly 300 is entirely concealed within the lower frame 210 of the sliding glass door 200, and the relative movement of the lower frame 210 and the wheel frame 310 enables the sliding glass door 200 to move, further enhancing the simplicity and aesthetics of the shower enclosure.

[0033] See Figure 2As a further preferred embodiment, a swing arm 400 is provided on the pulley block 300. One end of the swing arm 400 is hinged to the lower frame 210, and the other end is hinged to the wheel frame 310. In this embodiment, when the sliding glass door 200 moves into position, the swing arm 400 triggers the lower frame 210 to swing, thereby enabling the sliding glass door 200 to complete the forward and backward movement, simplifying the structure of the shower room. Furthermore, there are two swing arms 400, which, together with the lower frame 210 and the wheel frame 310, form a parallel four-bar linkage mechanism, making the lower frame 210 more stable when moving forward and backward, and also simplifying the structure.

[0034] As a further preferred embodiment, each of the wheel frames 310 has a mounting cavity 311 in the middle, and the end of the swing arm 400 is fitted into the mounting cavity 311. Using the mounting cavity 311, the end of the swing arm 400 can be positioned within the wheel frame 310, allowing the wheel frame 310 and the lower frame 210 to fit together in the front-to-back direction when they are close together. This allows the sliding glass door 200 to fit closer to the fixed glass door when the shower room is open, reducing the overall thickness of the shower room in the front-to-back direction and making the product more aesthetically pleasing. Furthermore, during use, the weight of the sliding glass door presses on the lower frame 210, and the force from the lower frame 210 is transmitted to the wheel frame 310 through the swing arm 400. Therefore, fitting the end of the swing arm 400 into the mounting cavity 311 allows both the upper and lower end faces of the swing arm 400 to abut against the wheel frame 310, thereby strengthening the mechanical structure and extending the product's lifespan.

[0035] To ensure that the sliding glass door 200 moves forward after the shower enclosure is in position, as a preferred embodiment, the lower guide rail 100 includes a guide section 110, and the swing arm 400 also includes a guide rod 410, which abuts against the guide section 110. It is understood that the guide section 110 includes both a straight trajectory and an arc-shaped trajectory, the arc-shaped trajectory being a curved shape in the front-to-back direction. The shape of the guide section 110 determines the movement trajectory of the sliding glass door 200. When the shower room is open, the sliding glass door 200 moves horizontally in a basically straight line. When the sliding glass door 200 is closed, the guide rod 410 and the guide section 110 work together to make the swing arm 400 swing back and forth. Since one end of the swing arm 400 is hinged to the lower frame 210, the lower frame 210 is also displaced in the back and forth direction under the action of the swing arm 400. This allows the sliding glass door 200 to move forward when the shower room is closed, and finally become coplanar with the fixed glass door.

[0036] As a further preferred embodiment, the guide rod 410 is provided with a clamping wheel 420, which is connected to the guide section 110. By using the clamping wheel 420 to clamp the guide section 110, the swing arm 400 becomes more stable and smoother during swinging, and the force is more evenly distributed.

[0037] As a further preferred embodiment, an elastic element 430 is also provided between the swing arm 400 and the lower frame 210. When the sliding glass door 200 is closed, the elastic element 430 is in a stretched state. This elastic force provides damping to the sliding glass door 200 when closing, making the closing process smoother and reducing collisions with the pillars during forward movement. Simultaneously, when the sliding glass door 200 is opened, the elastic element 430 provides assistance, making opening the sliding glass door 200 easier and improving the user experience. Furthermore, the elastic element 430 provides tension when the sliding glass door 200 moves horizontally in the left and right directions, causing the sliding glass door 200 to tend to adhere tightly to the glass door, improving the reliability of the sliding movement.

[0038] See Figure 3 As a further preferred embodiment, the upper surface of the lower frame 210 includes a glass groove 211 and a mounting opening 212. The mounting opening 212 communicates with the cavity 220. A cover plate is also provided on the lower frame 210, which is fastened to the lower frame 210 and covers the mounting opening 212. The sliding glass door 200 is fixed in the glass groove 211, and the mounting opening 212 facilitates the installation of the pulley assembly 300 into the cavity 220. Since the mounting opening faces upwards, water will flow down the glass door onto the lower frame 210 during use. Therefore, the cover plate can keep the water outside the lower frame, preventing water from seeping into the cavity 220. To further improve the waterproofing effect, the cover plate is relatively inclined. When water flows down from the glass door, it can gradually flow down along the inclined cover plate, improving drainage performance.

[0039] See Figure 4 , Figure 6 As a further preferred embodiment, the shower enclosure also includes an upper guide rail 500, which is fixed above the column. The sliding glass door 200 includes an upper frame 230, which is slidably connected to the upper guide rail 500. In this embodiment, the weight of the sliding glass door 200 is mainly borne by the lower guide rail 100, and the movement trajectory of the sliding glass door 200 is mainly guided by the lower swing arm. Therefore, by adding an upper guide rail 500 to the shower enclosure, the upper guide rail 500 can assist in guiding and limiting the movement of the sliding glass door 200, thereby improving the smoothness and reliability of the sliding glass door 200's movement.

[0040] As a further preferred embodiment, the bottom surface of the upper guide rail 500 is provided with a guide groove 510, the guide groove 510 including a curved section 511, the curved section 511 being bent along the front-back direction; the upper frame 230 is provided with a positioning pin 231, the positioning pin 231 being fitted into the guide groove 510. The curved section 511 corresponds to the guide section 110. When the sliding glass door 200 moves, the upper end is limited and guided by the guide groove 510, and the lower end is guided by the lower guide rail, thereby making the movement of the sliding glass door 200 more stable and reliable.

[0041] See Figure 5 , Figure 6 As a further preferred embodiment, a guide seat 600 is provided at the end of the upper guide rail 500, a limiting block 610 is provided on the guide seat 600, and a limiting groove 232 is provided on the upper frame 230, with the limiting block 610 engaging in the limiting groove 232. As mentioned above, in this embodiment, the weight of the sliding glass door 200 mainly presses on the lower pulley assembly 300, and the sliding glass door 200 has a tendency to tip forward after installation. If the positioning pin 231 in the upper frame 230 is relied solely on to guide and limit the sliding glass door, the safety is relatively low. To address this, this solution adds a guide seat 600 to the end of the upper guide rail 500. The guide seat 600 can be fixedly mounted on the fixed glass door, and is located at the end away from the column. The guide seat 600 has a downwardly extending limiting block 610, and correspondingly, a limiting groove 232 of approximately the same length as the sliding glass door is provided in the upper frame 230. When the sliding glass door 200 moves linearly in the left-right direction, the limiting block 610 can engage with the limiting groove 232. The limiting block 610 and the positioning pin 231 together provide limiting and guiding functions for the sliding glass door 200, making its horizontal movement more stable and smooth. When the sliding glass door 200 moves to the closed position, the limiting block 610 separates from the limiting groove 232, and the limiting block 610 will not affect the forward and backward movement of the sliding glass door 200.

[0042] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A bottom-track type shower room sliding door, comprising a bottom guide rail (100) and a sliding glass door (200), wherein the sliding glass door (200) is provided with a pulley assembly (300), characterized in that: The sliding glass door (200) includes a lower frame (210) with a cavity (220) in the lower frame (210). The pulley assembly (300) includes a wheel frame (310) and rollers (320). The rollers (320) are mounted on the wheel frame (310). The wheel frame (310) is movably disposed in the cavity (220). The wheel frame (310) can move back and forth relative to the cavity (220). The rollers (320) are slidably connected to the lower guide rail (100), which extends in the left and right direction.

2. The bottom-track sliding shower door according to claim 1, characterized in that: The cavity (220) is provided with a swing arm (400), one end of which is hinged to the lower frame (210) and the other end is hinged to the wheel frame (310).

3. The bottom-track sliding shower door according to claim 2, characterized in that: The wheel frame (310) is provided with a mounting cavity (311), and the end of the swing arm (400) is fitted into the mounting cavity (311).

4. The bottom-track sliding shower door according to claim 2, characterized in that: The lower guide rail (100) includes a guide section (110), and the swing arm (400) also includes a guide rod (410), which abuts against the guide section (110).

5. The bottom-track sliding shower door according to claim 4, characterized in that: The guide rod (410) is provided with a clamping wheel (420), which is connected to the guide section (110).

6. The bottom-track sliding shower door according to claim 2, characterized in that: An elastic element (430) is also provided between the swing arm (400) and the lower frame (210).

7. The bottom-track sliding shower door according to claim 1, characterized in that: The upper surface of the lower frame (210) includes a glass groove (211) and a mounting port (212). The mounting port (212) is connected to the cavity (220). The lower frame (210) is also provided with a cover plate, which is fastened to the lower frame (210) and covers the mounting port (212).

8. The bottom-track sliding shower door according to claim 1, characterized in that: It also includes an upper guide rail (500), and the sliding glass door (200) includes an upper frame (230), which is slidably connected to the upper guide rail (500).

9. The bottom-track sliding shower door according to claim 8, characterized in that: The bottom surface of the upper guide rail (500) is provided with a guide groove (510), the guide groove (510) includes a curved section (511), the curved section (511) is bent along the front and back direction; the upper frame (230) is provided with a positioning pin (231), the positioning pin (231) is fitted into the guide groove (510).

10. The bottom-track sliding shower door according to claim 8, characterized in that: The upper guide rail (500) has a guide seat (600) at its end, a limiting block (610) on the guide seat (600), and a limiting groove (232) on the upper frame (230). The limiting block (610) is inserted into the limiting groove (232).