Suspended load-bearing protection device and door and window structure
By combining a magnetic guide frame, magnet assembly, magnet protective shell, and guide wheel, the mechanical friction noise and magnet breakage issues of the load-bearing sliding parts of sliding doors and windows are solved, achieving a low-noise, stable, and smooth floating load-bearing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-04-07
AI Technical Summary
Existing sliding door and window load-bearing sliding components suffer from problems such as high mechanical friction noise, severe wear, and easily broken magnets in magnetic load-bearing sliding components.
It adopts a combination structure of magnetic guide frame, magnet assembly, magnet protective shell and guide wheel. It achieves levitation and load-bearing through magnetic adsorption, and uses magnet protective shell to isolate magnets from guide rail, and guide wheel to limit the distance between magnet assembly and guide rail to avoid collision.
It reduces mechanical friction noise, improves sliding smoothness and magnet safety, reduces wear and collision risks, and extends service life.
Smart Images

Figure CN224093205U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of door and window equipment, and in particular to a suspended load-bearing protective device and door and window structure. Background Technology
[0002] The load-bearing sliding structure of sliding doors and windows is one of the core components of the door and window system, and its performance directly affects the smoothness of sliding, load-bearing capacity, noise level, and service life of the doors and windows. Currently, the main load-bearing sliding component technologies on the market are divided into two types: traditional mechanical pulley type and emerging magnetic load-bearing type, but both have certain technical defects.
[0003] Traditional sliding doors and windows rely primarily on load-bearing pulleys to slide. While this method is technically mature, it has the following drawbacks: the mechanical friction between the pulleys and the track generates significant noise, which becomes more pronounced after prolonged use; direct contact between the pulleys and the track leads to wear, reducing smoothness of sliding and increasing maintenance and replacement costs.
[0004] In recent years, magnetic load-bearing sliders have been introduced to the market as an emerging technology. They achieve non-contact load bearing through magnetic force, effectively reducing mechanical friction and noise. However, in existing magnetic load-bearing sliders, the magnet array lacks protective measures, making it easy for the slider to come into contact with the magnet during sliding, leading to magnet breakage and affecting the overall use. Utility Model Content
[0005] This utility model provides a suspended load-bearing protective device and door / window structure to improve the safety of using magnet assemblies.
[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:
[0007] The first aspect of this utility model provides a suspended load-bearing protection device, comprising:
[0008] A magnetic guide frame, the bottom of which has a recess, and the top of which is used to mount a guide rail on the window frame and support the window sash;
[0009] Two magnet groups are respectively disposed on the inner walls of the two sides of the recess, and the magnetic poles of the two magnet groups are opposite on their inner sides; wherein, the two magnet groups are used to attract each other with the guide rail;
[0010] A magnet protective shell is disposed within the recess and located outside the two magnet assemblies to isolate the guide rail from the magnet assemblies;
[0011] A guide wheel is connected to at least one end of the recess and is used to roll in cooperation with the guide rail to limit the distance between the magnet assembly and the guide rail.
[0012] Preferably, the magnet protective shell has an inverted U-shaped receiving portion, the top of the receiving portion abutting against the inner bottom surface of the recessed portion, and the two outer walls of the receiving portion abutting against the two opposite inner sides of the two magnet assemblies respectively.
[0013] Preferably, the gap between the guide rail and the inner bottom surface of the receiving part is within the maximum attractive force bearing range of the two magnet groups.
[0014] Preferably, the bottom sides of the receiving portion are folded outward to form flanges;
[0015] The flange is located at the bottom of the magnet assembly to provide safety protection for the bottom of the magnet assembly.
[0016] Preferably, the guide wheels are provided in two sets, and the two sets of guide wheels are respectively connected to the two ends of the recess to limit the distance between the magnet group and the guide rail.
[0017] Preferably, the two guide wheels form a group, and the two guide wheels in the same group are located on both sides of the guide rail and respectively roll in cooperation with the guide rail.
[0018] Preferably, a buffer is provided between the outer wall of the receiving part and the inner side of the magnet assembly.
[0019] Preferably, the inner wall of the recess is provided with a mounting groove for mounting the magnet assembly.
[0020] Preferably, the magnet assembly is attached to the inner wall of the recess.
[0021] A second aspect of the present invention provides a door and window structure including the aforementioned protective device.
[0022] Compared with the prior art, the advantages of this utility model are as follows:
[0023] (1) The magnetic attraction force generated by the magnetic attraction of the two magnet groups and the guide rail is used to counteract the weight of the window sash. Furthermore, the two magnet groups are separated from the guide rail by the magnetic protective shell, thereby providing safety protection for the two magnet groups and improving the safety of the use of the magnet groups.
[0024] (2) The gap between the guide rail and the bottom of the magnet protective shell is within the limit of the magnetic force of the two magnet groups, thus ensuring smooth operation when the weight of the window sash does not exceed the limit of the load, and still providing effective load when the weight of the window sash exceeds the limit of the magnetic force of the two magnet groups.
[0025] (3) By clamping the two sets of guide wheels at both ends of the guide rail, the magnetic guide frame and the guide rail can be limited to prevent the magnetic guide frame from deviating during movement. This improves the stability of the magnetic guide frame movement and reduces the probability of collision between the guide rail and the magnet assembly, further enhancing the safety of the magnet assembly. Attached Figure Description
[0026] Figure 1 A schematic diagram of the structure of a suspended load-bearing protective device provided for an embodiment of this utility model;
[0027] Figure 2 An exploded view of a suspended load-bearing protective device with the guide rails omitted;
[0028] Figure 3 A cross-sectional view of a suspended load-bearing protective device provided for an embodiment of this utility model.
[0029] In the accompanying drawings, the reference numerals indicate:
[0030] 1. Magnetic guide frame; 11. Recessed part; 12. Connecting part; 111. Side plate; 112. Base plate; 121. Connecting hole;
[0031] 2. Magnet assembly; 3. Guide rail;
[0032] 4. Magnetic protective shell; 41. Receiving part; 42. Flanged edge; 411. Protective side plate; 412. Protective bottom plate;
[0033] 5. Guide wheel; 10. Window sash; 20. Window frame. Detailed Implementation
[0034] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0035] The present invention aims to provide a suspended load-bearing protective device. By adding protective measures for the magnet assembly, it can prevent the magnet assembly from being exposed and broken by impact, and can also cover the exposed magnet assembly, achieving an aesthetic effect.
[0036] Specifically, such as Figure 1As shown, a suspended load-bearing protective device provided in this embodiment of the present invention includes a magnetic guide frame 1, two magnet assemblies 2, a guide rail 3, a magnet protective shell 4, and a guide wheel 5. The magnetic guide frame 1 supports the window sash 10. The two magnet assemblies 2, the magnet protective shell 4, and the guide wheel 5 are all mounted on the magnetic guide frame 1, while the guide rail 3 is mounted on the window frame 20. Thus, the magnetic attraction between the two magnet assemblies 2 and the guide rail 3 generates a magnetic force to counteract the weight of the window sash 10, thereby supporting the window sash 10. Furthermore, the magnet protective shell 4 provides safety protection for the two magnet assemblies 2, improving their safety during use. In addition, the guide wheel 5 provides rolling guidance for the magnetic guide frame 1, improving the stability of the window sash 10's movement.
[0037] like Figure 2 As shown, in this embodiment, the bottom of the magnetic guide frame 1 has a recess 11, which is inverted U-shaped and is composed of two side plates 111 and a bottom plate 112. The two side plates 111 are used to mount two magnet assemblies 2, while the bottom plate 112 is used to support the guide rail on the window frame and carry the window sash 10. Furthermore, each end of the recess 11 has a connecting portion 12, which extends along the radial direction of the guide rail 3 (i.e.,...). Figure 2 Two connecting holes 121 are provided at horizontal intervals in the middle for connecting with the guide wheel 5.
[0038] In a preferred embodiment, a mounting groove (not shown in the figure) can be formed on the inner wall of the side plate 11 for mounting the magnet assembly 2, thereby improving the convenience and stability of the installation of the magnet assembly 2. In another embodiment, the magnet assembly 2 can also be directly glued to the inner wall of the side plate 11. In other embodiments, the magnet assembly 2 can also be installed by means of snap-fit, connectors, etc., which will not be described in detail here.
[0039] like Figure 2 As shown, in this embodiment, two magnet assemblies 2 are respectively attached to the inner walls of the two side panels 111 by adhesive. The two opposing inner magnetic poles of the two magnet assemblies 2 are opposite, thereby generating a magnetic field for magnetic attraction with the guide rail 3. It is understood that the more magnets in the magnet assembly 2, the greater the magnetic attraction, thus enabling it to support a heavier window sash 10. However, increasing the number of magnets also increases cost and installation difficulty. Therefore, in specific applications, an appropriate number of magnets can be selected based on needs.
[0040] like Figure 1 and Figure 3 As shown, in this embodiment, the guide rail 3 is cylindrical and made of a magnetic material (e.g., iron). The guide rail 3 is disposed on the window frame 20 and located between the two magnet groups 2, so that it can be magnetically attracted to the two magnet groups 2 to generate a magnetic attraction force.
[0041] like Figure 3 As shown, in this embodiment, the magnet protective shell 4 is disposed within the recess 11 and located between the two magnet assemblies 2 and the guide rail 3, to isolate the guide rail 3 from the magnet assemblies 2. Specifically, as... Figure 2 As shown, the magnet protective shell 4 has an inverted U-shaped receiving portion 41, which consists of two protective side plates 411 and a protective bottom plate 412. The protective bottom plate 412 abuts against the bottom plate 112, and the outer walls of the two protective side plates 411 abut against the two opposite inner sides of the two magnet assemblies 2. Thus, on the one hand, the bottom and side abutments improve the stability of the magnet protective shell 4 during installation; on the other hand, the two protective side plates 411 isolate the two magnet assemblies 2 from the guide rail 3, preventing collisions between the window sash 10 and the magnet assemblies 2 during movement, thereby improving the safety of the magnet assemblies 2. More preferably, a buffer (e.g., sponge or silicone) can be provided between the protective side plates 411 and the inner sides of the magnet assemblies 2 to further enhance the protection of the magnet assemblies 2.
[0042] In addition, the bottom sides of the receiving part 41 are folded outward to form flanges 42, which are located at the bottom of the magnet assembly 2 (for example, the magnet assembly 2 is directly supported by the flanges 42, or the flanges 42 are set below the magnet assembly 2) to provide safety protection for the bottom of the magnet assembly 2, thereby improving the safety of using the magnet assembly 2.
[0043] In this embodiment, preferably, the gap between the guide rail 3 and the protective base plate 412 is within the maximum load-bearing range of the two magnet groups 2. In practical use, if the weight of the window sash 10 does not exceed the maximum load-bearing range of the two magnet groups 2, the weight of the window sash 10 can be directly offset by the magnetic attraction, ensuring smooth operation when the weight of the window sash 10 does not exceed the maximum load-bearing range. If the weight of the window sash 10 exceeds the maximum load-bearing range of the two magnet groups 2, the bottom of the magnetic guide frame 1 and / or the magnetic protective shell 4 provides support; and when the bottom of the magnetic guide frame 1 and / or the magnetic protective shell 4 provides support, the magnetic attraction always provides effective load-bearing capacity.
[0044] like Figure 2As shown, in this embodiment, two sets of guide wheels 5 are provided. The two sets of guide wheels 5 are respectively connected to both ends of the recessed portion 11 through the connecting portion 12 to limit the distance between the magnet assembly 2 and the guide rail 3. Specifically, two guide wheels 5 form a set, and the two guide wheels 5 of the same set are respectively installed in the two connecting holes 121 of the connecting portion 12 and located on both sides of the guide rail 3, so as to roll with the guide rail 3 respectively. It can be understood that by clamping the two sets of guide wheels 5 at both ends of the guide rail 3, the magnetic guide frame 1 and the guide rail 3 can be limited to avoid the magnetic guide frame 1 from deviating during movement, thereby further reducing the probability of collision between the guide rail 3 and the magnet assembly 2, which is beneficial to improving the safety of the magnet assembly 2.
[0045] This utility model embodiment also provides a door and window structure, which includes the above-mentioned protective device.
[0046] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. Furthermore, the described specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.
[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0048] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A suspended load-bearing protective device, characterized in that, include: A magnetic guide frame, the bottom of which has a recess, and the top of which is used to mount a guide rail on the window frame and support the window sash; Two magnet groups are respectively disposed on the inner walls of the two sides of the recess, and the magnetic poles of the two magnet groups are opposite on their inner sides; wherein, the two magnet groups are used to attract each other with the guide rail; A magnet protective shell is disposed within the recess and located outside the two magnet assemblies to isolate the guide rail from the magnet assemblies; A guide wheel is connected to at least one end of the recess and is used to roll in cooperation with the guide rail to limit the distance between the magnet assembly and the guide rail.
2. The protection device as described in claim 1, characterized in that, The magnet protective shell has an inverted U-shaped receiving portion, the top of which abuts against the inner bottom surface of the recess, and the two outer walls of the receiving portion abut against the two opposite inner sides of the two magnet assemblies respectively.
3. The protection device as described in claim 2, characterized in that, The gap between the guide rail and the inner bottom surface of the receiving part is within the maximum attractive force bearing range of the two magnet groups.
4. The protection device as described in claim 2, characterized in that, The bottom sides of the receiving part are folded outward to form flanges; The flange is located at the bottom of the magnet assembly to provide safety protection for the bottom of the magnet assembly.
5. The protection device as described in claim 1, characterized in that, The guide wheels are provided in two sets, and the two sets of guide wheels are respectively connected to the two ends of the recess to limit the distance between the magnet group and the guide rail.
6. The protection device as described in claim 5, characterized in that, The two guide wheels form a group, and the two guide wheels in the same group are located on both sides of the guide rail and respectively roll in cooperation with the guide rail.
7. The protection device as described in claim 2, characterized in that, A buffer is provided between the outer wall of the receiving part and the inner side of the magnet assembly.
8. The protection device as described in claim 1, characterized in that, The inner wall of the recess is provided with a mounting groove for mounting the magnet assembly.
9. The protection device as described in claim 1, characterized in that, The magnet assembly is attached to the inner wall of the recess.
10. A door and window structure, characterized in that, Includes the protective device as described in any one of claims 1-9.