Barrier-free handrail device
The modular handrail design solves the installation difficulties caused by inconsistent handrail sizes, enabling flexible adaptation and cost savings for the handrail bars.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUYI UNIV
- Filing Date
- 2025-06-06
- Publication Date
- 2026-05-12
AI Technical Summary
现有住宅内预装扶手尺寸固定,难以完美适配不同安装区域,导致安装繁琐且成本高。
The handrail device adopts a split design, including a first fixed base, a second fixed base, and an adjustable handrail bar. The overall length of the handrail bar can be adjusted by the second bar to adapt to different installation size requirements.
It achieves flexible adaptation of handrails, simplifies the installation process, and reduces manufacturing costs.
Smart Images

Figure CN224228147U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of public facilities, and in particular to a barrier-free handrail device. Background Technology
[0002] In the construction industry, real estate developers typically pre-install handrails in necessary areas within residential buildings. However, most pre-installed handrails in residential buildings currently use a one-piece molded structure with fixed dimensions. Sometimes, to save costs, handrails of the same size are purchased, but the required handrail sizes for different installation areas are not consistent, making perfect fit difficult. Using perfectly fitting handrails, on the other hand, presents the problem of needing to install handrails of various sizes in different installation areas, requiring individual calibration and cumbersome assembly. Utility Model Content
[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a barrier-free handrail device that can increase the range of installation dimensions, making installation more convenient.
[0004] The barrier-free handrail device according to an embodiment of the present utility model includes:
[0005] A first fixing seat and a second fixing seat are provided at intervals along a first direction;
[0006] The handrail includes a first rod, a second rod, and a third rod connected sequentially along the first direction. The second rod is detachably connected between the first rod and the third rod. The end of the first rod away from the second rod is connected to the first fixed base. The end of the third rod away from the second rod is connected to the second fixed base. The second rod is capable of adjusting the length of the handrail along the first direction.
[0007] The barrier-free handrail device according to the embodiments of this utility model has at least the following beneficial effects:
[0008] 1. The handrail adopts a split design. After the first and second fixed seats are installed and fixed to the wall, the second rod can move relative to the first rod and / or the third rod, so that the handrail can adjust the overall length of the handrail along the first direction through the second rod, thereby making the handrail adaptable to a larger range of installation sizes and making installation more convenient.
[0009] 2. The separate design of the first fixed seat, the second fixed seat, the first rod, the second rod, and the third rod allows the first fixed seat, the second fixed seat, the first rod, and the third rod to be produced with a fixed mold without the need for size adjustment. When the length of the handrail needs to be adjusted, the overall length of the handrail can be adjusted by using the second rod of different lengths to meet the actual needs of different installation scenarios, while saving the manufacturing cost of the handrail.
[0010] According to some embodiments of the present invention, the end of the first rod away from the second rod is detachably connected to the first fixed base.
[0011] According to some embodiments of the present invention, the first fixed base includes a first base body, the top of the first base body has a mounting groove, the handrail includes a first rod and an insert, the first rod is connected to the insert, and the insert is detachably installed in the mounting groove.
[0012] According to some embodiments of the present invention, the insert includes an insert body and an elastic layer, the elastic layer surrounding the insert body and located between the outer periphery of the insert body and the inner periphery of the mounting groove;
[0013] The elastic layer is configured such that when the insert is embedded in the mounting groove, the elastic layer is compressed and undergoes elastic deformation.
[0014] According to some embodiments of the present invention, the first fixing seat further includes a first pin passing through the first seat body, the first pin being detachably connected to the first seat body, and the insert further includes a first insertion part, the first pin being able to pass through the first seat body and the first insertion part.
[0015] According to some embodiments of the present invention, the first rod includes a first main rod portion and a first disc portion, the first disc portion is disposed at one end of the first main rod portion, and the first disc portion is detachably connected to the first base body by fasteners.
[0016] According to some embodiments of the present invention, one end of the second rod is detachably connected to the first rod, and the other end of the second rod is sleeved on the third rod.
[0017] According to some embodiments of the present invention, the second rod has an internal thread, the outer circumferential surface of the first rod has an external thread, and the first rod and the second rod are threadedly connected by the external thread and the internal thread.
[0018] According to some embodiments of the present invention, the outer peripheral surface of the second rod has a friction layer and / or a marking layer.
[0019] According to some embodiments of the present invention, the end of the third rod away from the second rod is detachably connected to the second fixed base.
[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:
[0022] Figure 1 This is a schematic diagram of the structure of a first embodiment of the barrier-free handrail device according to an embodiment of the present invention;
[0023] Figure 2 This is an exploded structural diagram of the first embodiment of the barrier-free handrail device of this utility model;
[0024] Figure 3 This is a schematic diagram of the second embodiment of the barrier-free handrail device according to one embodiment of the present utility model;
[0025] Figure 4 This is an exploded structural diagram of a second embodiment of the barrier-free handrail device of this utility model;
[0026] Figure 5 This is an exploded structural diagram of a third embodiment of the barrier-free handrail device of this utility model.
[0027] Icon labels:
[0028] First fixed seat 100; first seat body 110; mounting groove 120; first pin 130;
[0029] Second fixed seat 200;
[0030] Handrail 300; first bar 310; first main bar portion 311; first disc portion 312; second bar 320; friction layer 321; third bar 330; insert 340; insert body 341; elastic layer 342; first insertion portion 343. Detailed Implementation
[0031] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0032] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the 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.
[0033] In the description of this utility model, "several" refers to one or more, and "multiple" refers to two or more. The use of "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, the number of indicated technical features, or the sequential relationship between indicated technical features.
[0034] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0035] Currently, pre-installed handrails in residential buildings mostly adopt a one-piece molded structure with fixed dimensions. Sometimes, to save costs, handrails of the same size are purchased, but the required handrail sizes for different installation areas vary, making perfect fit difficult. Using perfectly fitting handrails, on the other hand, presents the problem of needing to install handrails of various sizes in different areas, requiring individual calibration and cumbersome assembly. Furthermore, the fact that the main body of the handrail is generally made using a one-piece molding method makes it difficult to change its dimensions and achieve precise fit.
[0036] Reference Figures 1 to 5 As shown in the figure, this utility model embodiment proposes an accessible handrail device, which is applicable to public places, residences, bathrooms and other scenarios. This utility model does not impose specific limitations on this. The accessible handrail device includes: a first fixed seat 100, a second fixed seat 200 and a handrail 300.
[0037] In this embodiment, the first fixing seat 100 includes a first seat body 110, which has multiple fixing holes. During installation, the first fixing seat 100 is first placed on the wall, and then lines are drawn at the locations where holes need to be drilled on the first fixing seat 100. The user drills holes according to the drawn lines, and then an expansion sleeve is placed in the hole. The expansion bolt passes through the fixing holes of the first fixing seat 100 and is fixedly connected to the wall through the expansion sleeve, thus fixing the first fixing seat 100. The second fixing seat 200 is fixed in the same way as the first fixing seat 100, and will not be described again here. The first fixing seat 100 and the second fixing seat 200 are spaced apart along a first direction. The first fixing seat 100 and the second fixing seat 200 are respectively located on both sides of the installation area along the first direction, so that the handrail 300 can cover the entire installation area. The gap between the first fixing seat 100 and the second fixing seat 200 is used for installing the handrail 300. The first fixed base 100 and the second fixed base 200 can be arranged in a direction perpendicular to the ground, so that the handrail 300 is arranged in a direction perpendicular to the ground, making it convenient for users to stand and use. The first fixed base 100 and the second fixed base 200 can also be arranged in a horizontal direction, making it convenient for users to move in the horizontal plane.
[0038] The handrail 300 includes a first rod 310, a second rod 320, and a third rod 330 connected sequentially along a first direction. The second rod 320 is detachably connected between the first rod 310 and the third rod 330. The end of the first rod 310 away from the second rod 320 is connected to a first fixed base 100, and the end of the third rod 330 away from the second rod 320 is connected to a second fixed base 200. The second rod 320 can adjust the length of the handrail 300 along the first direction. In this embodiment, the first rod 310 includes a bent rod with a 90° bend. The first fixed base 100 is fixed to the wall. Part of the first rod 310 is perpendicular to the wall, and the other part extends in a direction parallel to the wall. The structure of the third rod 330 is the same as that of the first rod 310, and will not be described again here. The second rod 320 is a straight rod and connects the first rod 310 and the third rod 330. The second rod 320 plays a major load-bearing role, and the load-bearing capacity is shared by the structural strength of the first rod 310, the third rod 330, and the second rod 320 itself. The second rod 320 is a hollow straight tube.
[0039] It is understandable that the handrail 300 adopts a split design. After the first fixing seat 100 and the second fixing seat 200 are installed and fixed to the wall, the second rod 320 can move relative to the first rod 310 and / or the third rod 330. This allows the handrail 300 to adjust its overall length along the first direction via the second rod 320, thereby enabling the handrail 300 to adapt to a wider range of installation sizes and making installation more convenient. The split design of the first fixing seat 100, the second fixing seat 200, the first rod 310, the second rod 320, and the third rod 330 allows them to be produced using fixed molds without the need for size adjustment. When the length of the handrail 300 needs to be adjusted, the overall length of the handrail 300 can be adjusted by using the second rod 320 of different lengths to meet the actual needs of different installation scenarios, while also saving on the manufacturing cost of the handrail 300.
[0040] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in some embodiments of this utility model, the end of the first rod 310 away from the second rod 320 is detachably connected to the first fixing seat 100. It is worth understanding that the detachable connection between the first rod 310 and the first fixing seat 100 makes fixing the first rod 310 and the first fixing seat 100 simpler and facilitates replacement when the first rod 310 is damaged.
[0041] Specifically, the first rod 310 can be directly inserted into the first fixing seat 100, achieving a detachable connection between the first rod 310 and the first fixing seat 100. After the first rod 310 is inserted into the first fixing seat 100, it can be locked with fasteners, making the connection between the first rod 310 and the first fixing seat 100 more secure. Alternatively, the first rod 310 and the first fixing seat 100 can be detachably connected directly with fasteners, making installation more convenient.
[0042] Reference Figure 1 and Figure 2 As shown, in some specific embodiments of this utility model, the first fixed base 100 includes a first base body 110, the top of the first base body 110 has a mounting groove 120, the handrail 300 includes a first rod 310 and an insert 340, the first rod 310 is connected to the insert 340, and the insert 340 is detachably installed in the mounting groove 120.
[0043] It is understandable that by installing the handrail 300 through the insertion of the insert 340 into the mounting slot 120, the installation and disassembly of the handrail 300 are more convenient. When it is used in a scenario where disassembly is required, the overall device is more convenient to use. For example, when used in a rented house, the device can be disassembled and taken away, and then re-secured with expansion bolts in a new rented house.
[0044] In this embodiment, the first rod 310 and the insert 340 are integrally formed. The first rod 310 includes a bent rod, with one part of the bent rod bent at 90° relative to the other part. The insert 340 is sheet-like and connected to one end of the first rod 310. The other end of the first rod 310 is used to install the second rod 320. As another embodiment, the first rod 310 and the insert 340 are detachably connected. One end of the first rod 310 is provided with a threaded hole. The insert 340 includes a sheet-like body and a bolt on one side of the sheet-like body. The bolt is threaded into the threaded hole to realize the connection between the first rod 310 and the insert rod. Alternatively, the outer peripheral surface of one end of the first rod 310 has an external thread, and the insert 340 has a threaded hole. The external thread is threaded into the threaded hole. The separate design of the first rod 310 and the insert 340 allows the first rod 310 and the insert 340 to be formed separately, making the manufacturing process simpler.
[0045] Reference Figure 2 As shown, in some specific embodiments of the present invention, the insert 340 includes an insert body 341 and an elastic layer 342. The elastic layer 342 surrounds the insert body 341 and is located between the outer periphery of the insert body 341 and the inner periphery of the mounting groove 120. The elastic layer 342 is configured such that when the insert body 341 is inserted into the mounting groove 120, the elastic layer 342 is compressed and undergoes elastic deformation.
[0046] It is worth understanding that by increasing the friction between the insert 341 and the mounting groove 120 through the elastic layer 342 surrounding the insert 341, the insert 341 is difficult to separate from the mounting groove 120 after it is inserted into the mounting groove 120, and the connection between the insert 341 and the mounting groove 120 is more reliable and secure.
[0047] In this embodiment, the outer peripheral surface of the elastic layer 342 has multiple grooves or protrusions. The grooves and protrusions increase the friction between the elastic layer 342 and the mounting groove 120, further improving the connection stability between the insert 341 and the mounting groove 120. The inner peripheral wall of the mounting groove 120 also has multiple protrusions or grooves, and the grooves of the mounting groove 120 are adapted to the protrusions of the elastic layer 342, while the protrusions of the mounting groove 120 are adapted to the grooves of the elastic layer 342, thereby increasing the connection strength between the mounting groove 120 and the elastic layer 342.
[0048] In this embodiment, the first fixing base 100 and the second fixing base 200 are arranged perpendicular to the ground, and the handrail 300 is also arranged vertically for use in slippery environments such as bathrooms, facilitating use by standing users. The tops of both the first fixing base 100 and the second fixing base 200 have mounting grooves 120 to allow the handrail 300 to be inserted from top to bottom. After insertion, the handrail 300 is limited in all directions except the bottom-up direction. Simultaneously, the bottom-up direction is restricted by the friction between the elastic layer 342 and the mounting groove 120, making it difficult for the handrail 300 to come out. Generally, when a user uses the handrail for support, they pull the handrail down for support, rarely applying upward pulling force. Therefore, the friction between the elastic layer 342 and the mounting groove 120 is sufficient to meet the user's normal usage needs, allowing the user to reliably use the handrail 300. When the handrail 300 is disassembled, the friction between the elastic layer 342 and the mounting groove 120 will not significantly affect the disassembly of the handrail 300, making disassembly more convenient.
[0049] Reference Figure 5 As shown, in some specific embodiments of this utility model, the first fixing base 100 further includes a first pin 130 passing through the first base body 110. The first pin 130 is detachably connected to the first base body 110. The insert 341 further includes a first insertion part 343. The first pin 130 can pass through the first base body 110 and the first insertion part 343.
[0050] It is worth understanding that the first pin 130 can also limit the movement of the insert 340 in the direction from bottom to top, so that the insert 340 is completely limited, that is, the first rod 310 is completely limited. The first rod 310 and the first fixed seat 100 can be regarded as connected as one unit, and the first rod 310 and the first fixed seat 100 are difficult to separate from each other.
[0051] In this embodiment, the tolerance fit between the first pin 130, the first seat 110, and the first insertion part 343 includes a transition fit and a clearance fit. Generally, when in a transition fit, the outer peripheral surface of the first pin 130 has a certain elastic layer 342, which achieves the transition fit. After assembly, the elastic layer 342 is generally in a compressed state, preventing the first pin 130 from easily disengaging from the first seat 110 and the first insertion part 343. When in a clearance fit, there is a certain gap between the first pin 130 and both the first seat 110 and the first insertion part 343, making the insertion of the first pin 130 more convenient.
[0052] Reference Figure 3 and Figure 4As shown, in some specific embodiments of this utility model, the first rod 310 includes a first main rod portion 311 and a first disc portion 312. The first disc portion 312 is disposed at one end of the first main rod portion 311 and is detachably connected to the first base body 110 by fasteners.
[0053] In this embodiment, the first disc portion 312 has a plurality of through holes distributed sequentially along the circumference of the first disc portion 312, and the first base body 110 also has a plurality of connecting through holes. The inner circumferential surface of the connecting through holes has internal threads. The fastening bolt passes through the through holes and is threadedly connected to the internal threads in the connecting through holes, so that the first disc portion 312 is locked onto the first base body 110, thereby realizing the fixed connection between the first rod 310 and the first fixed seat 100.
[0054] Reference Figure 1 and Figure 2 As shown, in some specific embodiments of this utility model, one end of the second rod 320 is detachably connected to the first rod 310, and the other end of the second rod 320 is sleeved on the third rod 330.
[0055] It is worth understanding that the second rod 320 is connected to the first rod 310, and the other end of the second rod 320 is sleeved on the third rod 330, so that the second rod 320 can move telescopically relative to the third rod 330, thereby changing the overall length of the rod formed by the second rod 320 and the third rod 330, thus controlling the overall length of the handrail 300. The assembly precision range of the handrail 300 is wider and the assembly is more convenient.
[0056] Reference Figure 2 As shown, in some specific embodiments of this utility model, the second rod 320 has an internal thread, the outer circumferential surface of the first rod 310 has an external thread, and the first rod 310 and the second rod 320 are threadedly connected by the external thread and the internal thread.
[0057] It is worth understanding that the first rod 310 and the second rod 320 are connected as a single unit by threads, and the relative position between the second rod 320 and the first rod 310 can be changed by rotation, thereby adjusting the overall length of the handrail 300 to accommodate longer handrails 300. Simultaneously, the second rod 320 is fitted onto the third rod 330, and the third rod 330 does not obstruct the rotation of the second rod 320, making installation of the second rod 320 more convenient. Specifically, during installation, the second rod 320 can be first fitted onto the third rod 330, and then the axial movement of the second rod 320 and the third rod 330 can cover the gap between the third rod 330 and the first rod 310. The second rod 320 is then threaded onto the first rod 310, completing the assembly of the handrail 300.
[0058] Reference Figure 1 and Figure 2As shown, in some specific embodiments of this utility model, the outer peripheral surface of the second rod 320 has a friction layer 321 and / or a marking layer.
[0059] In this embodiment, the marking layer includes fluorescent markings, which make it easier for users to quickly locate the device in dark environments, thus making it more convenient to use. The friction layer 321 increases the friction on the outer peripheral surface of the second rod 320, making it less likely to slip when the user holds the second rod 320, further enhancing its ease of use.
[0060] Reference Figure 1 and Figure 2 As shown, in some specific embodiments of this utility model, the end of the third rod 330 away from the second rod 320 is detachably connected to the second fixed base 200. In this embodiment, the detachable structure of the third rod 330 connected to the second fixed base 200 is the same as the detachable structure of the first rod 310 connected to the first fixed base 100, and will not be described again here.
[0061] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A barrier-free handrail device, characterized in that, include: A first fixing seat and a second fixing seat are provided at intervals along a first direction; The handrail includes a first rod, a second rod, and a third rod connected sequentially along the first direction. The second rod is detachably connected between the first rod and the third rod. The end of the first rod away from the second rod is connected to the first fixed base. The end of the third rod away from the second rod is connected to the second fixed base. The second rod is capable of adjusting the length of the handrail along the first direction.
2. The barrier-free handrail device according to claim 1, characterized in that: The end of the first rod away from the second rod is detachably connected to the first fixed base.
3. The barrier-free handrail device according to claim 2, characterized in that: The first fixed base includes a first base body, the top of the first base body has a mounting groove, the handrail includes a first rod and an insert, the first rod is connected to the insert, and the insert is detachably installed in the mounting groove.
4. The barrier-free handrail device according to claim 3, characterized in that: The insert includes an insert body and an elastic layer, the elastic layer surrounding the insert body and located between the outer periphery of the insert body and the inner periphery of the mounting groove; The elastic layer is configured such that when the insert is embedded in the mounting groove, the elastic layer is compressed and undergoes elastic deformation.
5. The barrier-free handrail device according to claim 4, characterized in that: The first fixing seat further includes a first pin passing through the first seat body, the first pin being detachably connected to the first seat body, and the insert further includes a first insertion part, the first pin being able to pass through the first seat body and the first insertion part.
6. The barrier-free handrail device according to claim 5, characterized in that: The first rod includes a first main rod portion and a first disc portion. The first disc portion is located at one end of the first main rod portion and is detachably connected to the first base body by fasteners.
7. The barrier-free handrail device according to claim 1, characterized in that: One end of the second rod is detachably connected to the first rod, and the other end of the second rod is sleeved on the third rod.
8. The barrier-free handrail device according to claim 7, characterized in that: The second rod has an internal thread, and the outer circumferential surface of the first rod has an external thread. The first rod and the second rod are threadedly connected by the external thread and the internal thread.
9. The barrier-free handrail device according to claim 1, characterized in that: The outer peripheral surface of the second rod has a friction layer and / or a marking layer.
10. The barrier-free handrail device according to claim 1, characterized in that: The end of the third rod furthest from the second rod is detachably connected to the second fixed base.