Detachable hanger wheel assembly and hanger door

Abstract

The utility model provides a detachable hanging wheel assembly and hang the door of paddling, include: suspension frame, two side covers, a plurality of gyro wheel and short axle, wherein two side covers set up respectively in the width direction of suspension frame both sides, and side cover is C type structure, makes its top and bottom can be respectively half surrounded in suspension frame, suspension frame with side cover form the sliding pair of concave -convex cooperation in top or bottom, make side cover only can move along the length direction of suspension frame on suspension frame, a plurality of gyro wheel set up through short axle in the outside of side cover, still include: the fixed structure or fixed part for making side cover fixed on suspension frame, the utility model provides a detachable hanging wheel assembly and hang the door of paddling, through the collaborative design of C type side cover, concave -convex sliding pair and suspension frame, the combination of side cover and gyro wheel can be independently disassembled along the length direction of suspension frame, need not touch door body, track or wall, greatly simplify maintenance process, reduce the human input and consumable consumption in maintenance process.

Description

Technical Field

[0001] This utility model relates to the field of furniture technology, and in particular to a detachable hanging wheel assembly and a sliding door. Background Technology

[0002] Sliding doors, with their advantages of saving floor space and convenient opening and closing, are widely used in residential entrances, commercial showrooms, and other places. The hanging roller assembly, as its core transmission component, directly determines the smoothness of the door's sliding and the ease of maintenance. Currently, the mainstream hanging roller assemblies in the industry are mainly divided into two categories.

[0003] One type is the integrated hanging wheel assembly, which is designed as a single unit. After assembly, it slides within the hanging rail to open and close the door. While this type of assembly is simple in structure and easy to assemble initially, it has a fatal maintenance flaw: when the hanging wheel becomes stuck, wears out, or malfunctions and requires maintenance, because the assembly cannot be separated from the hanging rail, the entire door must be dismantled first, and then the fixed hanging rail must be removed. In the case of a "pocket doorway" (i.e., a concealed installation structure where one side of the door is embedded in the wall), it may even be necessary to break through the wall to remove the pre-embedded hanging rail, and then re-embed the hanging rail and reinstall the door after maintenance. This process is not only cumbersome and time-consuming, but also incurs additional costs such as wall repair and material replacement, causing great inconvenience to users.

[0004] Another type is the improved split-type hanging wheel assembly, which disassembles the main body of the bracket into a first part and a second part. During assembly, the parts can be installed separately into the hanging rail and then assembled within the rail to avoid opening maintenance ports on the guide rail. However, this design still has obvious limitations: on the one hand, the disassembly and assembly of the parts must be completed within the narrow hanging rail, the operating space is limited, and special tools are needed to adjust the position of the parts, which requires a high level of professionalism from the operators; on the other hand, the parts rely heavily on magnetic adsorption for positioning, and the magnetic attraction is prone to weakening after long-term use, which may cause the parts to loosen and affect the sliding stability of the door. Moreover, maintenance still requires disassembling the parts within the hanging rail, which does not fundamentally solve the problem of "cumbersome operation within the rail".

[0005] In summary, existing hanging wheel assemblies either suffer from extremely high maintenance costs due to their integral structure, or have drawbacks such as high operational barriers and insufficient stability due to their modular design. Neither can meet users' demands for convenient maintenance, low maintenance costs, and high stability. Therefore, developing a hanging wheel assembly that requires no door or rail disassembly, allows for convenient assembly and disassembly from outside the rail, and possesses a stable structure has become a pressing technical problem to be solved in the current hardware accessories industry. Utility Model Content

[0006] In view of this, the present invention provides a detachable roller assembly and a sliding door to eliminate or improve one or more defects existing in the prior art.

[0007] One aspect of this utility model provides a detachable hanging wheel assembly, comprising: a suspension frame, two side covers, a plurality of rollers, and a short shaft; wherein, the two side covers are respectively disposed on both sides of the suspension frame in the width direction, the side covers having a C-shaped structure, such that their top and bottom can respectively partially surround the top and bottom of the suspension frame; the suspension frame and the side covers form a sliding pair with a convex-concave fit at the top or bottom, such that the side covers can only move along the length direction of the suspension frame; the plurality of rollers are disposed on the outside of the side covers via the short shaft; the outer shaft section of the short shaft is used to insert the rollers on the same side; a through hole is formed on the side cover for the short shaft to pass through; the short shaft and the side covers are separately disposed, and the inner shaft section of the short shaft forms a limiting part for engaging between the suspension frame and the side cover on the same side; the detachable hanging wheel assembly further comprises: a fixing structure or fastener for fixing the side covers to the suspension frame.

[0008] In some embodiments, the suspension bracket has a first open end and a first closed end in its length direction, and the side cover has a second open end and a second closed end in its length direction; in the assembled state, the first open end and the second closed end are located on the same side; the sliding pair includes a first groove disposed at the bottom of the suspension bracket, the first groove extending from the side of the first open end to the first closed end; the sliding pair also includes a first protrusion disposed at the bottom of the side cover, the first protrusion engaging with the first groove, and the first protrusion being continuously or intermittently disposed along the length direction of the side cover.

[0009] In some embodiments, the suspension bracket has a first open end and a first closed end in its length direction, and the side cover has a second open end and a second closed end in its length direction; in the assembled state, the first open end and the second closed end are located on the same side; the sliding pair includes a second sliding groove disposed on the top of the suspension bracket, the second sliding groove extending from the side of the first open end to the first closed end; the sliding pair also includes a second protrusion disposed on the top of the side cover, the second protrusion engaging with the second sliding groove, the second protrusion being continuously or intermittently disposed along the length direction of the side cover.

[0010] In some embodiments, when the sliding pair is only provided on the top of the suspension bracket and the side cover, or only on the bottom of the suspension bracket and the side cover: the suspension bracket and the side cover form a limiting structure on the side opposite to the sliding pair, the limiting structure including: a limiting groove and a limiting protrusion.

[0011] In some embodiments, the suspension bracket has a first open end and a first closed end in its length direction, and the side cover has a second open end and a second closed end in its length direction; in the assembled state, the first open end and the second closed end are located on the same side; the limiting groove is formed on the side of the top of the side cover near the second open end, and the limiting protrusion is formed on the side of the top of the suspension bracket near the first closed end; the limiting groove and the limiting protrusion are provided with guide slopes on the side facing the first open end.

[0012] In some embodiments, a first mounting hole is formed at the middle of the bottom of the suspension frame, and a second mounting hole is formed at the same position along the length of the two side covers, so that the two side covers can be fixedly connected to the suspension frame by a fastener; or, two third mounting holes are formed at intervals in the width direction at the bottom of the suspension frame, and a fourth mounting hole is formed at the bottom of each of the two side covers, so that the side covers can be connected to the side covers of the suspension frame by their respective fasteners.

[0013] In some embodiments, the groove structure of the sliding pair is rectangular, dovetail, T-shaped, or V-shaped.

[0014] In some embodiments, the rollers include built-in bearings for connection to the short shaft; a plurality of rollers are arranged symmetrically or staggered on the outer sides of the two side covers; the detachable roller assembly also includes a brush, wherein the outer side wall of the side cover forms a brush mounting portion for vertically connecting the brush.

[0015] In some embodiments, in the length direction of the side cover, one end of the side cover extends outward relative to the suspension bracket, and the side cover has a tool connection portion formed at the part extending out of the suspension bracket for connecting a disassembly tool; the extension direction of the tool connection portion is vertically downward or slightly outward and downward.

[0016] Another aspect of this utility model provides a sliding door, including the detachable hanging wheel assembly as described above.

[0017] This utility model provides a detachable hanging wheel assembly and a sliding door. Through the coordinated design of the C-shaped side cover, the concave-convex sliding pair and the suspension frame, the assembly of the side cover and the rollers can be independently disassembled and installed along the length of the suspension frame without touching the door body, track or wall, completely avoiding the disassembly and modification process. During maintenance, only the side cover and the attached rollers, short shafts, etc. need to be removed, which greatly simplifies the maintenance process, reduces the manpower input and consumable consumption during the maintenance process, and lowers the overall maintenance cost.

[0018] Additional advantages, objects, and features of this invention will be set forth in part in the description which follows, and will in part become apparent to those skilled in the art upon review of the description, or may be learned by practice of the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures specifically pointed out in the description and drawings.

[0019] Those skilled in the art will understand that the objectives and advantages achievable with this invention are not limited to those specifically described above, and that the above and other objectives achievable with this invention will become clearer from the following detailed description. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, do not constitute a limitation thereof. The components in the drawings are not drawn to scale but are merely for illustrating the principles of the present invention. For ease of illustration and description of certain parts of the present invention, corresponding portions in the drawings may be enlarged, i.e., may appear larger relative to other components in an exemplary device actually manufactured according to the present invention.

[0021] Figure 1 This is a schematic diagram of the detachable hanging wheel assembly in one embodiment of the present invention.

[0022] Figure 2 This is an exploded view of the detachable wheel assembly in one embodiment of the present invention.

[0023] Figure 3 This is a structural schematic diagram of the detachable wheel assembly in one embodiment of the present invention from another perspective.

[0024] Figure 4 This is a sectional perspective view of the detachable hanging wheel assembly in one embodiment of the present utility model.

[0025] Figure 5 This is a schematic diagram of the detachable hanging wheel assembly installed in the hanging rail in one embodiment of the present invention.

[0026] Figure 6 This is a schematic diagram of the structure of a sliding door in one embodiment of the present invention.

[0027] Figure 7 This is a schematic diagram illustrating the steps of disassembling the detachable hanging wheel assembly within the hanging rail using disassembly tools, according to one embodiment of the present invention. The hanging rail portion is shown in cross-section.

[0028] Figure 8 This is a schematic diagram illustrating the disassembly steps of the detachable roller assembly in one embodiment of the present invention after removing the side cover and roller assembly on one side inside the hanging rail.

[0029] Figure label: 1. Suspension bracket; 101. Top of suspension bracket; 102. Bottom of suspension bracket; 103. First open end; 104. First sealed end; 111. First sliding groove; 121. Limiting protrusion; 122. Guide slope; 131. First mounting hole; 2. Side cover; 201. Top of side cover; 202. Bottom of side cover; 203. Second open end; 204. Second sealing end; 211. First protrusion; 221. Limiting groove; 231. Second mounting hole; 241. Through hole; 242. Thickened protruding ring; 243. Tool connection part; 251. Brush mounting part; 3. Roller; 31. Bearing; 4. Short shaft; 401. Limiting part; 5. Fixing part; 6. Connecting frame; 7. Brush; 8. Hanging rail; 801. Track; 9. Gantry; 10. Disassembly and assembly tools. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. Here, the illustrative embodiments and descriptions of this utility model are used to explain the present utility model, but are not intended to limit the present utility model.

[0031] It should also be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the solution according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0032] It should be emphasized that the term "including / comprises" as used herein refers to the presence of a feature, element, step, or component, but does not exclude the presence or addition of one or more other features, elements, steps, or components.

[0033] It should also be noted that, unless otherwise specified, the term "connection" in this article can refer not only to a direct connection, but also to an indirect connection involving an intermediary.

[0034] In the following description, embodiments of the present invention will be illustrated with reference to the accompanying drawings. In the drawings, the same reference numerals represent the same or similar parts, or the same or similar steps.

[0035] To address or alleviate the problems of existing integrated pulley assemblies requiring the removal of the door and track for maintenance, and even wall demolition for pocket doorways, resulting in cumbersome maintenance processes, high manpower costs, additional material costs, and damage to the building structure, this invention provides a detachable hanging wheel assembly and sliding door. Through the coordinated design of the C-shaped side cover, concave-convex sliding joints, and suspension frame, the assembly of the side cover and rollers can be independently disassembled and assembled along the length of the suspension frame without touching the door, track, or wall, completely avoiding the disassembly and modification process. During maintenance, only the side cover and the associated rollers and short shafts need to be removed, greatly simplifying the maintenance process, reducing manpower and material consumption, and lowering overall maintenance costs.

[0036] It should be noted that the core application scenario of this utility model's detachable hanging wheel assembly is "installed within the top hanging rail, suspending objects that need frequent horizontal movement below." Its maintenance-free, structurally stable, quiet, and wear-resistant characteristics not only break through the application boundaries of traditional sliding doors but also cover multiple fields requiring suspension and horizontal movement. For example, in the commercial display field, applications include, but are not limited to, mobile display racks in shopping mall counters (such as clothing and jewelry display racks), temporary booth partitions in exhibition centers, and adjustable exhibit hanging racks in art galleries. These devices require frequent horizontal movement along the pre-set top hanging rail to adjust the display layout or partition space. In the industrial production field, applications include, but are not limited to, lightweight material conveyor rails in factory workshops. (e.g., electronic components, small parts, etc.) and movable equipment brackets on production lines (e.g., testing instruments, small processing tools, etc.). These devices need to be moved directionally along the top hanging rail 8 to achieve material transfer or equipment position adjustment; in the field of public spaces, application scenarios include, but are not limited to, large conference rooms, multi-functional halls with foldable movable partitions (which need to be moved directionally along the top hanging rail to achieve space division), and adjustable sunshade curtains / projection screen hanging racks on the top of venues; in the field of medical and health care, application scenarios include, but are not limited to, movable infusion stands in hospital wards, and hanging racks for auxiliary training equipment in rehabilitation areas (e.g., light rehabilitation equipment, etc.). These devices need to be moved directionally along the top hanging rail to meet the position adjustment needs of bedside care or rehabilitation training for patients.

[0037] Firstly, this utility model provides a detachable hanging wheel assembly, such as... Figures 1-3 As shown, the detachable roller assembly may include: a suspension frame 1, two side covers 2, several rollers 3, and a short shaft 4, etc.

[0038] The two side covers 2 are respectively disposed on both sides of the width direction of the suspension frame 1. The side covers 2 have a C-shaped structure, so that their top and bottom can respectively partially surround the top and bottom of the suspension frame 1. The suspension frame 1 and the side covers 2 form a sliding pair with a concave-convex fit at the top or bottom, so that the side covers 2 can only move along the length direction of the suspension frame 1 on the suspension frame 1.

[0039] Furthermore, the suspension frame 1 can be integrally molded from high-strength materials or assembled from multiple parts, roughly in the form of a long rectangular structure. Its width sides can be flat mounting surfaces, but are not limited to this; they can also engage with the inner surfaces of the side covers 2. The sliding pair mentioned here refers to the connection and assembly of the suspension frame 1 and the side covers 2 via a guide rail groove structure, ensuring that the side covers 2 can only move back and forth along the length of the suspension frame 1 and cannot detach along the width or height direction. Optionally, the suspension frame 1 has a weight-reducing groove of a certain length or width in the middle, reducing the overall weight while maintaining structural strength. The length of the suspension frame 1 mentioned here refers to the direction of travel of the component, that is, the direction of movement of the object it is lifting.

[0040] In this invention, several rollers 3 are mounted on the outside of the side cover 2 via short shafts 4. All rollers 3 on the same side can be assembled into a unit with the side cover 2 on the same side via their respective short shafts 4, facilitating the assembly and disassembly of the entire assembly. The outer shaft section of the short shaft 4 is used to insert the rollers 3 on the same side; the side cover 2 has a through hole 241 for the short shaft 4 to pass through; the short shaft 4 and the side cover 2 are separate, and the inner shaft section of the short shaft 4 has a limiting part 401 for engaging between the suspension bracket 1 and the side cover 2 on the same side.

[0041] Optionally, such as Figure 2 As shown, the limiting part 401 can be configured as a shaft end flange structure, the diameter of which is larger than the diameter of the short shaft 4 body, to ensure that the flange end of the short shaft 4 cannot pass through the through hole 241 of the side cover 2 from the inside to the outside. Furthermore, in order to improve the load-bearing capacity of the side cover 2, a thickened convex ring 242 can also be formed on the outside of the through hole 241 to enhance structural stability.

[0042] Compared to the two separate detachable structures along the width of the guide rail, the width of the two separate structures is difficult to further reduce within the narrow space of the hanging rail 8 (usually a standardized profile). Disassembly requires adjusting the position of the two separate structures within the limited space, which can easily lead to operational jamming due to the confined space. This solution adopts a three-layer structure of "side cover 2 - hanger - side cover 2", and the width of each layer can be made smaller than that of the two separate structures. In this solution, the side cover 2 and the roller 3 form an independent assembly. During disassembly, a single side cover 2 assembly can slide off along the length of the hanging frame 1. This method is more suitable for the limited space of the standardized hanging rail 8. There is no need to forcibly adjust the posture of the components within the guide rail (such as tilting and moving). Small movements can directly achieve the disassembly of each part within the hanging rail 8, further reducing the difficulty of disassembly in the narrow space. The operational flexibility is significantly better than the two separate structures.

[0043] The C-shaped enclosed structure of the two side covers 2 and the collaborative design of the sliding pair of the suspension frame 1 in this utility model are the core technology combination for achieving stable operation, convenient disassembly and assembly, and reliable load-bearing of this detachable hanging wheel assembly. Figure 4 This is a sectional perspective view of a detachable wheel assembly according to an embodiment of the present invention. Figure 4 As shown, the C-shaped structure mentioned here refers to a cross-section that is C-shaped. It can be understood that the right angles shown in the illustration can also be included within the C-shaped structure. In other words, both side covers 2 have a top and a bottom, and both extend inward in the horizontal direction to cover the suspension frame 1. The covering here means that the top of the suspension frame 1 can be completely or partially covered, and the bottom of the suspension frame 1 can be completely or partially covered.

[0044] Firstly, the C-shaped side cover 2, through its semi-enclosed structure at the top and bottom, directly restricts the side cover 2 from detaching along the suspension frame 1 in the height direction. Combined with the concave-convex fit of the sliding pair, it restricts the side cover 2 from moving along the width direction of the suspension frame 1. The combination of the two forms a two-way constraint in both the height and width directions, retaining only the degree of freedom of movement of the side cover 2 along the length direction of the suspension frame 1. This ensures that when the side cover 2 drives the roller 3, it always fits against the inner wall of the track 801, without any risk of deviation, jamming, or derailment. This solves the problems of roller 3 rubbing against the track, bumpy operation, or excessive noise caused by insufficient limiting of existing pulley assemblies.

[0045] Secondly, the C-shaped side cover 2 increases the contact area between the side cover 2 and the suspension frame 1 through multiple contacts at the top, bottom, and sides. The concave-convex fit structure of the sliding pair can evenly transfer the weight of the suspended object (such as the weight of the door) borne by the side cover 2 to the main body of the suspension frame 1 through the convex rail, rather than concentrating it at a certain contact point. The combination of the two avoids component deformation caused by single-point force, such as the cracking of the side cover 2 and the local dent of the suspension frame 1 caused by the concentrated force in the existing pulley assembly, thus improving the overall load-bearing capacity of the assembly and making it suitable for heavy sliding doors or other suspended objects.

[0046] Third, the side cover 2, roller 3, and short shaft 4 can be pre-assembled into a "side cover 2-roller 3 assembly". The C-shaped enclosure structure and the sliding pair allow the assembly to be docked with the suspension frame 1 by sliding in as a whole, which greatly simplifies the pre-assembly and maintenance process.

[0047] Fourth, the semi-enclosed structure of the C-shaped side cover 2 can block the connection gap between the suspension bracket 1 and the side cover 2, reducing the entry of dust, fibers, and small impurities into the internal structure; at the same time, the gap of the sliding pair's concave-convex mating structure is also small, which can further prevent impurities from accumulating on the sliding surface, avoiding poor sliding or component wear due to impurities getting stuck, so that the component can still operate stably in dusty environments such as shopping malls and factories; this structure can also reduce the entry of moisture, reduce the risk of corrosion, and improve the durability of the component in humid environments.

[0048] In this embodiment of the utility model, the detachable hanging wheel assembly can be precisely positioned through the cooperation of the C-shaped side cover 2 and the sliding pair of the suspension frame 1, preventing the side cover 2 from moving in multiple directions and ensuring stable operation. Within the narrow hanging rail 8, the side cover 2-roller 3 assembly can be slidably removed along the sliding pair without complicated operation. The enclosed assembly structure realizes multi-faceted contact and uniform force transmission, improves load-bearing reliability, and can also cover gaps, making it suitable for harsh environments such as humid and dusty conditions. This utility model effectively solves the pain points of existing components such as difficult disassembly and assembly and poor stability.

[0049] In some embodiments, the detachable hanging wheel assembly may further include: a fixing structure or fastener 5 for fixing the side cover 2 to the suspension frame 1. The fixing structure or fastener 5 can achieve a fixed connection between the side cover 2 and the suspension frame 1, preventing the side cover 2 from moving along its length on the suspension frame 1. The fixing structure mentioned here refers to the side cover 2 and the fixing frame being provided with an integrally formed snap-fit ​​structure, such as an elastic snap protrusion on the inner side of the side cover 2 and a corresponding matching slot on the suspension frame 1. During assembly, the side cover 2 is slid along the suspension frame 1 to the target position, and the elastic snap protrusion can automatically snap into the slot to lock it. When it is necessary to release the fixation, it is only necessary to press the snap protrusion to disengage it from the slot.

[0050] As an example, such as Figure 3 As shown, the component includes a fastener 5, which can be a screw; the side cover 2 has a countersunk hole at the corresponding position, and the suspension bracket 1 has a threaded hole; the screw passes through the countersunk hole and is threadedly connected to the threaded hole, which can tightly lock the side cover 2 in the preset position of the suspension bracket 1. The countersunk design avoids the screw from being exposed and interfering with other components, and effectively prevents the side cover 2 from moving accidentally along the length of the suspension bracket 1.

[0051] As one possible approach, such as Figure 3 As shown, a first mounting hole 131 is formed in the middle of the bottom of the suspension frame 1, and a second mounting hole 231 is formed at the same position along the length of the two side covers 2, allowing the two side covers 2 to be fixedly connected to the suspension frame 1 by a single fastener 5. Furthermore, the second mounting hole 231 is a countersunk hole, which prevents the fastener 5 from interfering with the sliding of the track 801. In this method, a single fastener 5 can simultaneously fix the two side covers 2, reducing the number of fasteners 5 and simplifying the assembly steps; the two side covers 2 are linked and fixed through the shared mounting hole, avoiding uneven force on the side covers 2 caused by unilateral fixing. The first mounting hole 131 can be a threaded hole or a smooth hole; if it is a smooth hole, a nut is required. Correspondingly, the fastener 5 is a screw or bolt.

[0052] As another possible implementation, the bottom of the suspension bracket 1 has two third mounting holes spaced apart in the width direction, and the bottoms of the two side covers 2 each have their own fourth mounting holes, allowing the side covers 2 to be connected to the side covers 2 of the suspension bracket 1 via their respective fixing members 5. In this method, both side covers 2 can be disassembled and maintained independently. If only one side of the roller 3 is worn, there is no need to loosen the fixing member 5 on the other side; only the fixing member 5 on the corresponding side needs to be removed to remove the side cover 2, greatly improving the flexibility of local maintenance. The independent fixing structure can prevent a failure on one side from affecting the other side, and the independent hole design reduces the accuracy requirements for hole alignment, resulting in a higher assembly error tolerance.

[0053] Optionally, the fixing element 5 and the mounting hole can be positioned at the bottom of the component to facilitate disassembly and assembly from below; along the entire length of the component, the positions of the fixing element 5 and the mounting hole can be arbitrarily set according to actual needs, as long as it facilitates disassembly and assembly. Figure 3 The location shown is on the side of the component near the first sealing end 104 of the suspension bracket 1.

[0054] To further explain the specific structure and assembly / disassembly method of the suspension bracket 1 and side cover 2 in this embodiment of the present invention, their ends in the length direction can be named. For example, such as... Figure 2 and Figure 3 As shown, the suspension bracket 1 has a first open end 103 and a first closed end 104 in its length direction, and the side cover 2 has a second open end 203 and a second closed end 204 in its length direction; in the assembled state, the first open end 103 and the second closed end 204 are located on the same side.

[0055] The distinction between the open end and the sealed end mentioned here is primarily based on the sliding entry and termination of the sliding pair: the first open end 103 refers to the end of the suspension frame 1 that is not sealed along its length; the second open end 203 refers to the end of the side cover 2 that is adapted to the first open end 103 of the suspension frame 1 along its length; the concept of the sealed end is the opposite, i.e., it is sealed, such as the end of an integrally molded end plate or a welded baffle. During assembly, the second open end 203 of the side cover 2 enters the first open end 103 of the suspension frame 1. In the assembled state, after the side cover 2 slides along the sliding pair to the first sealed end 104, its sliding stroke is terminated. At this time, the relative position of the side cover 2 and the suspension frame 1 is fixed, with no excess sliding clearance, preventing the side cover 2 from shifting along its length during the operation of the hanging wheel assembly (such as when the suspended object moves horizontally), thereby preventing the roller 3 from rubbing against the rail or the short shaft 4 from being subjected to uneven force; at the same time, the blocking effect of the first sealed end 104 can prevent the side cover 2 from detaching from the non-open end due to external forces such as vibration, thus enhancing the reliability of the sliding pair.

[0056] During disassembly, simply remove the fixing piece 5 of the side cover 2 (such as a screw) and push the side cover 2 along the sliding joint (first open end 103) to allow the side cover 2, along with the roller 3 and short shaft 4, to slide out from that end as a whole. This method does not require disassembling the sliding joint or damaging the track 801, and the second sealing end 204 can be used as a force point for the hand or tools, making it easy to apply force within the limited space of the hanging rail 8. Compared with components without end definition, which require blindly adjusting the sliding direction of the side cover 2 during disassembly and assembly, the disassembly and assembly efficiency is significantly improved.

[0057] As one possible approach, the sliding pair is positioned at the bottom of the component. Specifically, such as... Figure 2 and Figure 5 As shown, the sliding pair includes a first groove 111 disposed at the bottom 102 of the suspension frame, extending from the side of the first open end 103 to the first sealed end 104; the sliding pair also includes a first protrusion 211 disposed at the bottom 202 of the side cover, the first protrusion 211 engaging with the first groove 111, and the first protrusion 211 being continuously or spaced along the length of the side cover 2. In this method, the bottom-mounted sliding pair can utilize gravity-assisted positioning, and the gravity of the side cover 2 causes the first protrusion 211 to naturally conform to the bottom of the first groove 111, reducing upward displacement during sliding and adapting to scenarios where the bottom space of the hanging rail 8 is limited. The spaced-out first protrusion 211 can reduce the weight of the side cover 2 and save materials while ensuring guiding accuracy, and at the same time reduce the processing difficulty of the groove and the protrusion, avoiding the deformation risk of long strip protrusions; the continuously mounted first protrusion 211 can enhance structural stability and is suitable for heavy-load conditions.

[0058] As another possible implementation, a sliding pair is disposed on the top of the component. The sliding pair includes a second sliding groove disposed on the top 101 of the suspension bracket, the second sliding groove extending from the side of the first open end 103 to the first closed end 104; the sliding pair also includes a second protrusion disposed on the top 201 of the side cover, the second protrusion engaging with the second sliding groove, the second protrusion being continuously or spaced along the length of the side cover 2. The top-mounted sliding pair is suitable for scenarios where the bottom space of the hanging rail 8 is narrow, such as when space needs to be reserved for the rotation of the roller 3 at the bottom, avoiding structural conflict between the bottom sliding pair and the roller 3; the engagement of the top protrusion and the sliding groove can limit the downward displacement of the side cover 2, which is suitable for scenarios with heavy hanging objects, such as heavy sliding doors, preventing the side cover 2 from sliding and getting stuck due to gravity.

[0059] In the aforementioned embodiments, the sliding pair can be provided only at the bottom of the component or only at the top of the component. Providing it only at the bottom or only at the top simplifies the structure, reduces processing and assembly complexity, and adapts to the single-space requirements of the standardized hanging rail 8; it also reduces the contact area of ​​components, lowering sliding resistance caused by dust accumulation. The sliding pair can also be provided at both the bottom and top of the component. This method forms a double concave-convex fit, guiding and limiting the side cover 2 from both upper and lower directions, completely preventing the side cover 2 from shifting or tilting along the height direction of the suspension frame 1; it is particularly suitable for high-frequency use and high-vibration scenarios, such as shopping mall glass hanging doors, improving the long-term operational stability of the component and extending the service life of the sliding pair.

[0060] In some embodiments, when the sliding pair is only provided on the top of the suspension frame 1 and the side cover 2, or only on the bottom of the suspension frame 1 and the side cover 2: the suspension frame 1 and the side cover 2 form a limiting structure on the side opposite to the sliding pair. The limiting structure includes a limiting groove 221 and a limiting protrusion 121. Here, "opposite" refers to the top and bottom sides. In this method, a single sliding pair can only achieve sliding guidance and positioning in a single direction (top or bottom), while the limiting structure on the opposite side of the top and bottom can supplement the positioning in the other direction (bottom or top), forming a complete constraint in both the sliding direction and the top and bottom, solving the problem of the side cover 2 easily tilting and shifting in the single sliding pair scenario. The limiting structure and the sliding pair work together to make the contact area between the side cover 2 and the suspension frame 1 larger and the force more even, which can avoid deformation caused by local force concentration on the side cover 2, especially suitable for scenarios such as sliding doors that need to bear weight for a long time and slide frequently.

[0061] Furthermore, such as Figure 2 As shown, the limiting groove 221 is formed on the side of the top 201 of the side cover near the second open end 203, and the limiting protrusion 121 is formed on the side of the top 101 of the suspension frame near the first sealing end 104. In use, if only the sliding pair is provided at the bottom, the top 201 of the side cover is prone to displacement due to lack of constraint. By engaging the limiting groove 221 and the limiting protrusion 121 at the top, the detachment of the side cover 2 in the width direction can be restricted. At the same time, in conjunction with the lateral constraint of the sliding pair, a stable structure of bottom sliding guide and top limiting anti-detachment is formed to prevent the side cover 2 from tilting or moving during disassembly or operation.

[0062] Furthermore, the limiting groove 221 and the limiting protrusion 121 are provided with guide slopes 122 on the side facing the first open end 103. When the side cover 2 slides toward the first sealing end 104 of the suspension frame 1, the guide slope 122 of the limiting groove 221 first contacts the guide slope 122 of the limiting protrusion 121. The inclination angle of the slope can convert the sliding thrust of the side cover 2 into a guiding force along the slope, automatically correcting the position of the side cover 2, so that the limiting protrusion 121 slides smoothly into the limiting groove 221, avoiding jamming due to operation deviation, and can be adapted to the limited operating space in the hanging rail 8.

[0063] In some embodiments, the groove structure of the sliding pair can be rectangular, dovetail, T-shaped, or V-shaped. A rectangular groove structure has a rectangular cross-section for both the groove and the protrusion, with a clearance fit. The rectangular structure provides a uniform contact area, evenly transmitting the force between the side cover 2 and the suspension bracket 1, avoiding localized stress concentration. Simultaneously, the clearance fit facilitates assembly and disassembly, allowing ordinary operators to slide the side cover 2 without precise alignment, lowering the operational threshold. A dovetail groove structure has a "dovetail" shaped groove, with the protrusion matching the groove shape to form a self-locking fit. The dovetail's self-locking characteristic effectively prevents the side cover 2 from shifting vertically or detaching due to vibration or accidental collisions during sliding, improving the overall stability of the component. Furthermore, the trapezoidal contact surface further increases the force transmission area, resulting in a higher load-bearing capacity than the rectangular groove. The T-slot structure provides significant lateral limiting, allowing for precise control of the clearance between the side cover 2 and the suspension bracket 1. This ensures smooth sliding without wobbling and effectively reduces frictional noise between the roller 3 and the track 801. Furthermore, the T-slot's straightness is easily guaranteed during machining, improving the smoothness of the side cover 2's sliding and extending the component's lifespan. The V-slot structure's self-aligning characteristic compensates for minor deviations during assembly, ensuring the side cover 2 always slides along the preset trajectory of the suspension bracket 1, preventing jamming due to misalignment. Simultaneously, the inclined structure of the V-shaped surface facilitates the sliding of dust and small impurities, reducing wear on the sliding pair and improving the component's durability in dusty environments.

[0064] In some embodiments, such as Figure 1 and Figure 2 As shown, the roller 3 includes a built-in bearing 31 for connection with the short shaft 4. The bearing 31 is integrated inside the roller 3, with its inner ring forming an interference fit with the short shaft 4, and its outer ring rigidly connected to the inner wall of the roller 3. This design converts the sliding friction between the roller 3 and the short shaft 4 into rolling friction within the bearing 31, significantly reducing operating resistance and noise, making the roller 3 slide more smoothly along the track 801, while also reducing wear on both the short shaft 4 and the roller 3, extending their service life. It is particularly suitable for high-frequency translational suspension scenarios.

[0065] In some embodiments, a plurality of rollers 3 are arranged symmetrically or staggered on the outer sides of the two side covers 2. The number of rollers 3 can be set according to the actual situation, such as one pair, two pairs or more pairs of rollers 3 on one component.

[0066] Furthermore, symmetrical arrangement means that the number of rollers 3 on the outer sides of both side covers 2 is the same, and the rollers 3 on the same side cover 2 are evenly distributed along the length of the side cover 2, with the axes of the rollers 3 at corresponding positions on both side covers 2 being collinear. This method can make the hanging object (such as the door) bear the force evenly, avoiding wear of the track 801 or component shaking caused by force offset, and is suitable for hanging scenarios with heavy weights, such as household solid wood sliding doors.

[0067] Furthermore, the staggered arrangement refers to the staggered distribution of the rollers 3 on the outer sides of the two side covers 2 along the length of the side cover 2, that is, the roller 3 of one side cover 2 is located in the gap between the two rollers 3 of the other side cover 2. This method can reduce the overall length of the component in the extension direction of the track 801, adapt to the limited space of the standardized hanging rail 8, and at the same time ensure the stability of the support of the rollers 3 to the track 801, avoiding the problem of swaying due to single-point support when the suspended object is moved.

[0068] In some embodiments, the detachable wheel assembly further includes a component disposed on the brush 7, such as... Figures 1-5 As shown, the outer wall of the side cover 2 has a brush mounting portion 251 for vertically connecting the brush 7. This mounting portion can be configured as a slot (opening towards the outside of the side cover 2) or a boss (such as one with a threaded hole) extending along the height direction of the side cover 2. The root of the brush 7 is vertically fixed by snap-fit ​​or threaded connection, ensuring that the brush 7 does not fall off or shift during component translation, and that the bristles of the brush 7 face the inner wall of the track 801, maintaining slight contact with the inner wall of the track 801.

[0069] When the component moves horizontally, the bristles of brush 7 can clean dust and small impurities (such as fibers and metal shavings) from the inner wall of track 801 in real time, preventing impurities from accumulating at the contact point between roller 3 and track 801, and preventing roller 3 from getting stuck or worn due to impurities. The contact between brush 7 and the inner wall of track 801 can fill the tiny gap between roller 3 and track 801, reducing the slight collision noise between roller 3 and track 801 when the component moves horizontally, and at the same time, it plays a certain buffering role when the suspended object starts and stops, improving the user experience. The vertical arrangement of brush 7 can form a barrier to reduce the entry of external dust and moisture into the interior of track 801, which is especially suitable for hanging scenarios with dampness and dust such as kitchens and bathrooms, extending the service life of track 801 and component.

[0070] In some embodiments, such as Figure 3 , Figure 7 and Figure 8As shown, along the length of the side cover 2, one end of the side cover 2 (specifically, the second sealing end 204) extends outward relative to the suspension frame 1. A tool connection portion 243 is formed on the part of the side cover 2 extending out of the suspension frame 1 for connecting the disassembly / removal tool 10. The tool connection portion 243 is only provided on the part of the side cover 2 extending out of the suspension frame 1, without occupying the mating space between the suspension frame 1 and the side cover 2, thus avoiding interference with core structures such as the sliding pair and the fixing component 5. Furthermore, the position of this protruding end is adapted to the end of the suspension frame 1, ensuring that the tool can be accessed from the outside of the hanging rail 8 or the side of the gantry 9 during disassembly / removal, without needing to penetrate the narrow space inside the hanging rail 8.

[0071] In practical operation, the disassembly / assembly tool 10 (such as a rod-shaped operating component) is connected via the tool connection part 243. The operator can apply directional force (such as pushing or pulling force) with the tool to move the side cover 2 precisely along the sliding pair. During assembly, the side cover 2 is pushed into the suspension frame 1; during disassembly, the side cover 2 is pulled away from the suspension frame 1. This solves the problem of inconvenience caused by the lack of a force-bearing point on the side cover 2 in traditional hanging wheel assemblies, requiring manual prying or the use of auxiliary parts. The tool connection part 243 and the disassembly / assembly tool 10 can be threaded or snap-fitted.

[0072] Optionally, the tool connecting part 243 extends vertically downward or slightly outward and downward. The vertically downward extension option is suitable for scenarios where the space below the hanging rail 8 is relatively regular and there is no obstruction from the gantry 9; the slightly outward and downward extension option is suitable for scenarios where the space below the hanging rail 8 is narrow or there are obstructions such as door frames. The inclined design allows the tool to be inserted obliquely from the outside of the hanging rail 8, avoiding obstructions. At the same time, the inclination angle can be set typically between 30° and 60° to ensure that the force applied by the tool can be decomposed into an effective component force along the sliding direction of the side cover 2, without affecting the disassembly and assembly efficiency, and is compatible with complex spatial layouts.

[0073] In some embodiments, the detachable hanging wheel assembly may further include: a connecting structure or connecting frame 6, etc., disposed on the suspension frame 1 for connecting the suspended object. The connecting structure described here refers to an integrally formed connecting structure on the suspension frame 1, suitable for suspended objects with stable weight and fixed connection positions, such as household sliding doors and fixed-size commercial display racks. The integrally formed structure has no splicing gaps, high load-bearing strength, and can avoid the risk of the connecting frame 6 falling off the suspension frame 1 during long-term use.

[0074] As an example, such as Figure 2 , Figure 5 and Figure 6 As shown, the connecting frame 6 can be a separate part or a multi-part assembly. The connecting frame 6 is built into the through slot in the middle of the suspension frame 1. The connecting frame 6 can be L-shaped as a whole, realizing the connection between the suspension frame 1 and the gantry 9. This part of the structure can also use existing technology, which will not be described in detail here. The connecting frame 6 can also adopt an adjustable structure to facilitate precise control of the height of the hoisted object.

[0075] The following describes the disassembly and assembly process of the single-side cover 2-roller 3 assembly as an example, and further illustrates the disassembly and assembly steps of the detachable hanging wheel assembly in the hanging rail 8 in the embodiment of this utility model with reference to the accompanying drawings. The assembly step is the reverse process of the disassembly step.

[0076] The disassembly process includes the following steps: (1) Prepare the appropriate tools: Select the appropriate disassembly and assembly tools 10 and screwdriver according to the type of tool connection part 243 of side cover 2 and mounting hole of suspension bracket 1; (2) Release the side cover 2: Use a screwdriver to unscrew the screws that fix the side cover 2 and the hanging bracket 1 through the operating space inside the hanging cabinet or from below the hanging cabinet to avoid the obstruction, and release the fixing constraint between the two. (3) Tool docking and force application: such as Figure 7 As shown, the disassembly and assembly tool 10 is inserted obliquely to avoid obstruction such as the frame 9, and a pulling force is applied to the first open end 103 side of the suspension frame 1 along the extension direction of the sliding pair of the suspension frame 1. (4) Side cover 2 slides out and separates: With the help of the disassembly tool 10, the side cover 2, roller 3, and brush 7 assembly are driven to slide smoothly out from the first open end 103 of the suspension frame 1 along the sliding joint, separating from the area where the length of the suspension frame 1 is located, such as Figure 8 As shown; at this time, the short shaft 4 can be removed from the inside of the side cover 2, that is, the side cover 2 and the roller 3 are separated, and the disassembly of a single set of side cover 2 is completed; (5) Repeat the above steps for the other side cover 2.

[0077] Secondly, this utility model also provides a sliding door, which includes the aforementioned detachable roller assembly. In practical use, the sliding door can use one, two, or more detachable roller assemblies of the same or different types. The difference in type mentioned here lies in the number of rollers 3, which can be flexibly selected according to the length and weight of the door.

[0078] In residential settings, sliding doors using this detachable roller assembly can be adapted to pocket doors connecting kitchens, balconies, and living rooms, avoiding the need to demolish walls and damage the building structure during maintenance; they can also be adapted to sliding doors in bedrooms and bathrooms, meeting the core needs of home users for ease of maintenance, quiet operation, and wear resistance.

[0079] In commercial settings, sliding doors using this detachable roller assembly are suitable for glass sliding doors in shopping malls, office buildings, and other places with high traffic and frequent component wear. Quick maintenance can reduce downtime caused by maintenance and reduce business losses. They are also suitable for movable partition sliding doors in hotels and exhibition halls. Modular assembly and disassembly facilitate regular cleaning and maintenance, ensuring the long-term smooth operation of the partition doors and guaranteeing the user experience of the venue.

[0080] In industrial and special locations, the sliding door with detachable roller assembly can be adapted to large sliding doors in industrial plants. These doors are heavy and the track 801 is installed at a high position. The sliding door can be maintained without the need for hoisting equipment, reducing the risk of working at height and the difficulty of manual operation. It can also be adapted to sliding doors in hospitals, nursing homes and other places that require frequent disinfection, cleaning and maintenance. The non-disassembly design avoids affecting passage during maintenance, and the quiet characteristics meet the requirements of the place for environmental quietness.

[0081] In public facility settings, the sliding doors using this detachable roller assembly can be adapted to automatic sliding doors in subway stations and airports with high usage frequency and high component reliability requirements. Wear parts can be quickly replaced to ensure continuous and stable operation of the equipment and guarantee public passage efficiency. It can also be adapted to silent sliding doors in libraries and laboratories, such as the use of polyurethane rollers 3 and bearings 31 for transmission and stable structure design to meet the venue's requirements for low noise and high reliability.

[0082] In this invention, features described and / or illustrated for one embodiment may be used in the same or similar manner in one or more other embodiments, and / or combined with or in place of features of other embodiments.

[0083] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. For those skilled in the art, various modifications and variations can be made to the embodiments of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A detachable caster assembly, characterized in that, include: Suspension bracket (1), two side covers (2), several rollers (3) and short shaft (4); The two side covers (2) are respectively disposed on both sides of the suspension frame (1) in the width direction. The side covers (2) are C-shaped, so that their top and bottom can respectively partially surround the top and bottom of the suspension frame (1). The suspension bracket (1) and the side cover (2) form a sliding pair with a concave-convex fit at the top or bottom, so that the side cover (2) can only move along the length direction of the suspension bracket (1) on the suspension bracket (1); Several rollers (3) are disposed on the outside of the side cover (2) via the short shaft (4); the outer shaft section of the short shaft (4) is used to insert the rollers (3) on the same side; a through hole (241) is formed on the side cover (2) for the short shaft (4) to pass through; the short shaft (4) and the side cover (2) are separately disposed, and the inner shaft section of the short shaft (4) forms a limiting part (401) for it to be snapped between the suspension bracket (1) and the side cover (2) on the same side; The detachable wheel assembly further includes a fixing structure or fastener (5) for fixing the side cover (2) to the suspension frame (1).

2. The detachable caster assembly according to claim 1, characterized in that, The suspension bracket (1) has a first open end (103) and a first closed end (104) in its length direction, and the side cover (2) has a second open end (203) and a second closed end (204) in its length direction; in the assembled state, the first open end (103) and the second closed end (204) are located on the same side; The sliding pair includes a first sliding groove (111) disposed at the bottom (102) of the suspension bracket, the first sliding groove (111) extending from the side of the first open end (103) to the first blocking end (104). The sliding pair also includes a first protrusion (211) disposed on the bottom (202) of the side cover. The first protrusion (211) is in concave-convex cooperation with the first sliding groove (111). The first protrusion (211) is continuously disposed or spaced apart along the length direction of the side cover (2).

3. The detachable caster assembly according to claim 1, characterized in that, The suspension bracket (1) has a first open end (103) and a first closed end (104) in its length direction, and the side cover (2) has a second open end (203) and a second closed end (204) in its length direction; in the assembled state, the first open end (103) and the second closed end (204) are located on the same side; The sliding pair includes a second sliding groove disposed on the top (101) of the suspension bracket, the second sliding groove extending from the side of the first open end (103) to the first blocking end (104). The sliding pair also includes a second protrusion disposed on the top (201) of the side cover. The second protrusion is in concave-convex cooperation with the second sliding groove. The second protrusion is continuously disposed or spaced apart along the length direction of the side cover (2).

4. The detachable caster assembly according to claim 1, characterized in that, When the sliding pair is only provided at the top of the suspension bracket (1) and the side cover (2), or only at the bottom of the suspension bracket (1) and the side cover (2): The suspension bracket (1) and the side cover (2) form a limiting structure on the side opposite to the sliding pair. The limiting structure includes a limiting groove (221) and a limiting protrusion (121).

5. The detachable caster assembly according to claim 4, characterized in that, The suspension bracket (1) has a first open end (103) and a first closed end (104) in its length direction, and the side cover (2) has a second open end (203) and a second closed end (204) in its length direction; in the assembled state, the first open end (103) and the second closed end (204) are located on the same side; The limiting groove (221) is formed on the side of the top of the side cover (201) near the second open end (203), and the limiting protrusion (121) is formed on the side of the top of the suspension bracket (101) near the first sealing end (104). The limiting groove (221) and the limiting protrusion (121) are provided with a guide slope (122) on the side facing the first open end (103).

6. The detachable caster assembly according to claim 1, characterized in that, A first mounting hole (131) is formed in the middle of the bottom of the suspension bracket (1), and a second mounting hole (231) is formed at the same position along the length of the two side covers (2), so that the two side covers (2) can be fixedly connected to the suspension bracket (1) by a fastener (5); or, The bottom of the suspension bracket (1) has two third mounting holes spaced apart in the width direction, and the bottom of the two side covers (2) has their own fourth mounting holes, so that the side covers (2) are connected to the side covers (2) of the suspension bracket (1) through their respective fasteners (5).

7. The detachable caster assembly according to claim 1, characterized in that, The groove structure of the sliding pair is rectangular, dovetail, T-shaped, or V-shaped.

8. The detachable caster assembly according to claim 1, characterized in that, The roller (3) includes a built-in bearing (31) for connection with the short shaft (4); Several rollers (3) are arranged symmetrically or staggered on the outside of the two side covers (2); The detachable roller assembly also includes a brush mounting portion (251) formed on the outer side wall of the side cover (2) for vertically connecting the brush (7).

9. The detachable caster assembly according to claim 1, characterized in that, Along the length of the side cover (2), one end of the side cover (2) extends outward relative to the suspension bracket (1), and a tool connection part (243) is formed on the part of the side cover (2) that extends outward from the suspension bracket (1) for connecting the disassembly and assembly tool (10). The extension direction of the tool connecting part (243) is vertically downward or inclined outward downward.

10. A sliding door, characterized in that, Includes the detachable roller assembly as described in any one of claims 1 to 9.

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