Roller structure and sliding door device

Abstract

The utility model relates to a roller structure and belongs to the technical field of buildings. The roller structure comprises a box hanging shaft assembly and a roller shaft assembly, the fixing assembly is provided with a roller assembly hole and a shaft hole, the box hanging shaft assembly is arranged on the fixing assembly and located at the position of the shaft hole, and the fixing assembly can rotate relative to the box hanging shaft assembly; the rolling wheel assembly is arranged on the fixing assembly and located at the rolling wheel assembly hole; and the hanging box is arranged on the hanging box shaft assembly. According to the idler wheel structure, when the stress of an idler wheel assembly is not uniform, a fixing assembly can be made to rotate, the weight borne by the device can be more evenly distributed on all idler wheels, in this way, the situation that the weight is concentrated on the local idler wheels can be effectively avoided, and therefore the situation that the idler wheels are abraded or damaged too early due to the fact that single-point pressure is too large is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to building technical field especially is related to a kind of roller structure and sliding door device. BACKGROUND

[0002] In prior art, the roller structure of sliding door device is set as a whole and the track is not horizontal during installation track, which leads to unbalanced stress of roller, all rollers are not on the same stress surface, and the roller is easily damaged, which causes uneven weight bearing of roller to the door body, so that part of the roller is stressed too much, which will cause the roller to be damaged over time, and shorten the service life of sliding door device. SUMMARY

[0003] Therefore, it is necessary to provide a kind of roller structure and sliding door device to solve the problem of lack of balance of roller structure.

[0004] A kind of roller structure, the roller structure includes: hanging box shaft assembly;Fixed assembly, the fixed assembly is equipped with roller assembly hole and shaft hole, the hanging box shaft assembly is arranged on the fixed assembly and is located at the shaft hole, the fixed assembly can rotate relative to the hanging box shaft assembly;Roller assembly, the roller assembly is arranged on the fixed assembly and is located at the roller assembly hole;Hanging box, the hanging box is arranged on the hanging box shaft assembly.

[0005] The application discloses a kind of roller structure, by being arranged on the fixed assembly setting roller assembly hole of roller assembly, roller assembly hole provides a relatively fixed mounting position for roller assembly, ensure that roller moves along the predetermined track or path during rolling, simultaneously, the shaft hole of fixed assembly is set to the hanging box shaft assembly, since the fixed assembly can rotate on the hanging box shaft assembly, then the hanging box is arranged on the hanging box shaft assembly, so that the weight of door is transmitted to the roller assembly of fixed assembly by the hanging box shaft assembly, when the stress of roller assembly is uneven, the fixed assembly can be rotated, so that the weight carried by the device is more evenly distributed on each roller, which can effectively avoid the weight concentrated on local roller, thereby preventing the roller from premature wear or damage due to excessive single-point pressure, avoiding the damage of roller caused by excessive local pressure, and also reducing the pressure on the door frame and the roller track, so that the door can move smoothly and will not lose balance due to external force, and can prevent the track from deforming due to excessive local stress.

[0006] In one of the embodiments, the hanging box shaft assembly comprises limiting shafts, a connecting block and limiting pins, the number of the limiting shafts and the limiting pins is multiple, the multiple limiting pins are correspondingly arranged on the multiple limiting shafts, the multiple limiting shafts are arranged at two ends of the connecting block, the connecting block is provided with mounting holes, the hanging box is arranged on the connecting block and located at the mounting holes, the fixing assembly is provided with pin holes, and the limiting pins extend to the pin holes. By arranging the multiple limiting shafts at two ends of the connecting block, the two limiting shafts can evenly share the external force, preventing the connecting block from being deformed or damaged due to uneven force, so that the connecting block can still maintain the stability of the structure under complex stress environment. The limiting pins are correspondingly arranged on each limiting shaft, and the limiting pins are located at the pin holes of the fixing assembly. The limiting shaft itself can limit the movement range of the hanging box shaft assembly, but the limiting pins arranged on each limiting shaft can further accurately control the limit position of the movement, avoid the hanging box arranged on the mounting holes of the connecting block from being deviated during the movement, and ensure that the roller structure remains stable during the work and protects the safety of the user.

[0007] In one of the embodiments, the cross-sectional shape of the limiting shaft is circular, or the cross-sectional shape of the limiting shaft is elliptical, or the cross-sectional shape of the limiting shaft is approximately elliptical, or the cross-sectional shape of the limiting shaft is polygonal, or the number of the limiting pins is two, three or four. By setting the cross-sectional shape of the limiting shaft to be circular, elliptical, approximately elliptical or polygonal, etc., the fixing device can smoothly rotate around its own axis during its work. During the opening and closing of the door, the fixing device can naturally rotate with the rolling of the roller and the movement of the door. This rotating mode can reduce the friction between the fixing device and the guide rail, and can uniformly distribute the door pushing pressure to each fixing device, so that the roller structure moves more smoothly. At the same time, when subjected to external force, the limiting shaft can uniformly distribute the force to the components cooperating with it, so that the pressure between the limiting shaft and the fixing assembly is uniformly distributed, and the components will not be damaged due to excessive local stress, thereby prolonging the service life of the whole sliding door device.

[0008] In one of the embodiments, the number of the fixing assemblies is multiple, the multiple fixing assemblies are arranged on both sides of the hanging box shaft assembly, and the number of the roller assemblies is multiple, the multiple roller assemblies are arranged on both sides of the multiple fixing assemblies one by one. By arranging the multiple fixing assemblies on both sides of the hanging box shaft assembly, the external force borne by the hanging box shaft assembly can be effectively balanced, stable support can be provided for the entire roller structure, the flexibility of the roller structure can be effectively increased by the front and rear fixing assemblies, the situation of excessive local stress caused by unilateral stress concentration can be prevented, the hanging box shaft assembly and the connected parts can work within a reasonable stress range, and the mechanical properties of the material can be effectively utilized. Meanwhile, the layout mode enhances the ability of the entire structure to resist torsion and bending. When an external torque or bending moment acts on the device, the fixing assemblies on both sides can cooperate to provide a reverse moment to balance the external force, so that the hanging box shaft assembly can maintain a stable position and posture, and the normal function of the device can be maintained.

[0009] In one of the embodiments, the hanging box shaft assembly is provided with a mounting hole, the mounting hole is a threaded hole or a via hole, and the hanging box is located at the mounting hole. By arranging the hanging box on the mounting hole of the hanging box shaft assembly, since the mounting hole is a threaded hole or a via hole, a stable connection point can be provided for power transmission. It is ensured that the power can be transmitted along a predetermined path, and the loss and deviation in the power transmission process are avoided. Meanwhile, the mounting hole provides a fixed mounting reference for the hanging box, so that the hanging box can drive the movement of the hanging box shaft assembly in a more stable manner when transmitting power.

[0010] In one of the embodiments, the fixing assembly comprises a base assembly and connecting side plates, the number of the connecting side plates is multiple, the multiple connecting side plates are arranged on both sides of the base assembly, the connecting side plates are provided with the roller assembly holes, the roller assemblies are arranged on the connecting side plates and located at the roller assembly holes, the base assembly is provided with multiple shaft holes and pin holes, the hanging box shaft assembly is arranged on the base assembly and located at the multiple shaft holes and the pin holes, and the multiple shaft holes are matched with the limiting shafts of the hanging box shaft assembly. By arranging the multiple connecting side plates on both sides of the base assembly, a more balanced support structure is provided for the whole device. By arranging the roller assemblies on the roller assembly holes provided on the connecting side plates, the weight of the sliding door device can be evenly transmitted to the roller assemblies through the connecting side plates. This balanced weight distribution helps to prevent the sliding door device from sinking or tilting on one side when heavy objects are placed, and maintains the overall level and stability of the sliding door device. Meanwhile, the roller assembly holes provide accurate mounting positions for the roller assemblies, which can ensure that the roller assemblies are in contact with the ground or track at the appropriate height and position, ensuring that the rollers can roll in the expected manner, achieving smooth movement of the device, and maintaining the correct movement trajectory during movement. By arranging multiple shaft holes on the base assembly and arranging the hanging box shaft assembly on the multiple shaft holes, since the shaft holes are matched with the limiting shafts, and the pin holes have a certain space, the fixing assembly can rotate around the hanging box shaft assembly when bearing the weight of the door or the movement force, so that the force is evenly distributed to the roller assemblies, avoiding the overload of some or several roller assemblies, allowing each roller assembly to work within its normal load range, prolonging the service life of the roller assemblies. Meanwhile, since the roller assemblies work in a stable stress state, the movement trajectory of the door during opening and closing is more accurate and will not deviate or shake due to uneven stress, improving the user experience.

[0011] In one of the embodiments, the base assembly comprises a base and a plurality of clamping sleeves, the plurality of clamping sleeves are arranged on the base and form a plurality of shaft holes with the base. By arranging multiple clamping sleeves on the base and forming multiple shaft holes with the base, the shaft holes are used to fix the hanging box shaft assembly. First, the base needs to have sufficient strength and stability to bear the weight and load of the shaft assembly and its connected components. Second, the arrangement of multiple shaft holes can make the fixing position of the hanging box shaft assembly more stable and prevent unnecessary displacement of the shaft assembly in the shaft hole. The arrangement of multiple clamping sleeves helps to disperse the stress, effectively resists deformation of the shaft hole caused by external force, increases the rigidity of the entire roller structure, and improves the anti-deformation ability of the structure, ensuring that the hanging box shaft assembly can always remain in the correct position in the normal working environment.

[0012] In one embodiment, the roller assembly includes a roller and a roller shaft assembly, the roller is arranged on the roller shaft assembly, and the roller shaft assembly is arranged on the fixing assembly at the roller assembly hole. By arranging the roller on the roller shaft assembly, the roller can rotate around the roller shaft assembly during the opening and closing of the door, thereby converting the sliding friction between the door and the track into rolling friction, which greatly reduces the friction and allows the user to push the door with less force, making the door pushing action more smooth and smooth. The roller shaft assembly provides a stable rotation center for the roller, ensuring that the roller can move according to the predetermined trajectory during rolling, which helps the door to maintain straight-line motion when moving, avoiding deviation or shaking, allowing the door to accurately fit the door frame, ensuring normal closing and opening of the door, and improving the motion accuracy of the sliding door device. The roller shaft assembly is arranged at the roller assembly hole of the fixing assembly, which provides an accurate installation position for the roller shaft assembly, ensuring the accuracy of the position of the roller shaft assembly in the device, and the roller assembly hole also limits the movement of the roller shaft assembly, preventing unnecessary displacement during work. During frequent opening and closing of the door, the roller shaft assembly may be subjected to forces in various directions, and the roller assembly hole can limit its movement in the horizontal and vertical directions, ensuring that the roller shaft assembly always remains in the correct position and ensures the normal operation of the sliding door device.

[0013] In one embodiment, the roller shaft assembly includes a shaft, a first limiting piece and a second limiting piece, the shaft is arranged through the roller, the first limiting piece is arranged on the shaft and abuts against the roller, and the second limiting piece is arranged on the shaft and located at the end of the shaft. By arranging the shaft through the roller, the first limiting piece on the shaft and abutting against the roller, and the second limiting piece on the shaft and located at the end of the shaft, the second limiting piece at the end of the shaft plays a blocking role, which can accurately position the roller on the fixing assembly and prevent the roller from sliding axially on the shaft, ensuring that the roller works stably at the predetermined position. This is crucial for the normal operation of the device, because once the roller falls off, it will affect the stability and smoothness of the rolling, and the motion function of the entire device will be seriously affected, and even the device may be damaged.

[0014] In one of the embodiments, the hanging box comprises a hanging box shaft and a hanging box block, the hanging box shaft is arranged in the hanging box shaft assembly and located at the mounting hole of the hanging box shaft assembly, and the hanging box block is arranged on the hanging box shaft. By arranging the hanging box shaft in the hanging box shaft assembly and locating it at the mounting hole, and arranging the hanging box block on the hanging box shaft, an effective transmission path of power from the driving source to the roller structure is formed. The arrangement of the hanging box shaft in the mounting hole of the hanging box shaft assembly strengthens the connection between the components, provides stable support for the hanging box block, and tightly connects the hanging box shaft assembly with the driving system, so that the whole sliding door device forms an organic whole. This tight connection can improve the overall strength of the device and better withstand the weight of the door and various external forces. At the same time, this arrangement helps to improve the structural stability of the sliding door device, reduces device failures caused by component loosening, displacement and other problems during long-term use, and the stable structure can ensure the normal operation of the sliding door device during frequent opening and closing operations, thereby prolonging the service life of the device.

[0015] The second aspect of the present application discloses a sliding door device, which comprises: the above-mentioned roller structure, the number of the roller structure is multiple groups; a door body, the door body is arranged on the multiple groups of roller structures; a track, the roller structure is arranged on the track and can move along the track.

[0016] The second aspect of the present application discloses a sliding door device, by arranging the door body on the roller structure and arranging the roller structure on the track, the roller structure can move on the track to drive the movement of the door body, which changes the friction mode between the door body and the track from sliding friction to rolling friction. The rolling friction coefficient is much smaller than the sliding friction coefficient, which greatly reduces the force required to push the door body. At the same time, the rolling of the roller on the track can effectively reduce the jamming during the movement of the door body. Since the roller can rotate flexibly on the track, the jamming caused by the unevenness of the track surface or the uneven friction force is avoided, so that the movement of the door body is relatively smooth. In addition, since the fixing assembly can rotate on the hanging box shaft assembly according to the stress condition, the roller assembly can be in contact with the track at the same time, which avoids the concentration of weight in a local area, divides the stress received, and reduces the pressure on the track and the door body support structure. Whether it is a hanging structure or a pushing structure, the movement of the door body is smoother, which improves the user's experience. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a first perspective view of the roller structure;

[0018] Figure 2 It is a second perspective view of the roller structure;

[0019] Figure 3 It is a perspective view of the hanging box shaft assembly;

[0020] Figure 4 A 3D view of the fixed components;

[0021] Figure 5 This is a 3D view of the roller assembly;

[0022] Figure 6 This is a 3D view of the hanging box.

[0023] The correspondence between the reference numerals and the component names is as follows:

[0024] 1. Hanging box shaft assembly, 11. Limiting shaft, 12. Connecting block, 13. Limiting pin, 101. Mounting hole;

[0025] 2. Fixing component, 21. Base component, 211. Base, 212. Slot sleeve, 22. Connecting side plate, 201. Roller mounting hole, 202. Shaft hole, 203. Pin hole;

[0026] 3 Roller assembly, 31 Roller, 32 Roller shaft assembly, 321 Shaft, 322 First limiting piece, 323 Second limiting piece;

[0027] 4 hanging boxes, 41 hanging box shafts, 42 hanging box blocks. Detailed Implementation

[0028] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0030] The roller structure and sliding door device of this utility model are described below with reference to the accompanying drawings.

[0031] Example 1

[0032] like Figures 1 to 6 As shown, this embodiment discloses a roller structure, including: a hanging box shaft assembly 1; a fixing assembly 2, the fixing assembly 2 having a roller mounting hole 201 and a shaft hole 202, the hanging box shaft assembly 1 being disposed on the fixing assembly 2 and located at the shaft hole 202, the fixing assembly 2 being rotatable relative to the hanging box shaft assembly 1; a roller assembly 3, the roller assembly 3 being disposed on the fixing assembly 2 and located at the roller mounting hole 201; and a hanging box 4, the hanging box 4 being disposed on the hanging box shaft assembly 1.

[0033] The application discloses a roller structure, which is characterized in that the roller assembly 3 is arranged on the roller assembly hole 201 of the fixing assembly 2, the roller assembly hole 201 provides a relatively fixed mounting position for the roller assembly 3, and the movement of the roller along a predetermined track or path is ensured in the rolling process; meanwhile, the hanging box shaft assembly 1 is arranged at the shaft hole 202 of the fixing assembly 2, the fixing assembly 2 can rotate on the hanging box shaft assembly 1, and the hanging box 4 is arranged on the hanging box shaft assembly 1, so that the weight of the door is transmitted to the roller assembly 3 of the fixing assembly 2 through the hanging box shaft assembly 1; when the stress of the roller assembly 3 is uneven, the fixing assembly 2 can rotate, the weight borne by the device is more evenly distributed on each roller, the weight is effectively prevented from being concentrated on the local roller, the roller is prevented from being excessively worn or damaged due to excessive single-point pressure, the damage of the roller caused by excessive local pressure is avoided, the pressure on the door frame and the movement track of the roller is reduced, the door can be smoothly moved, the balance of the door is not lost due to external force, the door is prevented from being inclined in the pushing process, and the track is prevented from being deformed due to excessive local stress.

[0034] As shown in Figure 3 and Figure 4 In addition to the features of the above-mentioned embodiments, the present embodiment is further limited in that the hanging box shaft assembly 1 comprises a limiting shaft 11, a connecting block 12 and a limiting pin 13, the number of the limiting shaft 11 and the limiting pin 13 is multiple, the multiple limiting pins 13 are correspondingly arranged on the multiple limiting shafts 11, the multiple limiting shafts 11 are separately arranged at two ends of the connecting block 12, the connecting block 12 is provided with a mounting hole 101, the hanging box 4 is arranged on the connecting block 12 and located at the mounting hole 101, the fixing assembly 2 is provided with a pin hole 203, and the limiting pin 13 extends to the pin hole 203. By separately arranging the multiple limiting shafts at two ends of the connecting block 12, the two limiting shafts can evenly share the external force, deformation or damage of the connecting block 12 caused by uneven stress is prevented, and the connecting block 12 can still maintain the stability of the structure in a complex stress environment. The limiting pin 13 is correspondingly arranged on each limiting shaft 11, and the limiting pin 13 is located at the pin hole 203 of the fixing assembly 2. The limiting shaft 11 itself can limit the movement range of the hanging box shaft assembly 11, but the limiting pin 13 arranged on each limiting shaft 11 can further accurately control the limit position of the movement, the hanging box 4 arranged on the connecting block 12 is prevented from deviating in the movement process, the stability of the roller structure in the working process is ensured, and the safety of the user is ensured.

[0035] As shown in Figure 2As shown, in addition to the features of the above embodiments, the present embodiment is further limited in that: the cross-sectional shape of the limiting shaft 11 is circular; or the cross-sectional shape of the limiting shaft 11 is elliptical; or the cross-sectional shape of the limiting shaft 11 is approximately elliptical; or the cross-sectional shape of the limiting shaft 11 is polygonal; or the number of limiting pins 13 is two, three or four. By setting the cross-sectional shape of the limiting shaft 11 to be circular or elliptical or approximately elliptical or polygonal, etc., the fixing device 2 can smoothly rotate around its own axis during its operation. During the opening and closing of the door, the fixing device 2 can naturally rotate with the rolling of the rollers and the movement of the door. This rotation mode can reduce the friction between the fixing device 2 and the guide rail, and can uniformly distribute the door pushing pressure to each fixing device 2, making the roller structure movement more smooth. At the same time, when subjected to external force, the limiting shaft can uniformly distribute these forces to the components cooperating with it, making the pressure distribution between the fixing assembly 2 uniform, and preventing local excessive stress from causing component damage, thereby prolonging the service life of the entire sliding door device.

[0036] As shown, Figure 2 in addition to the features of the above embodiments, the present embodiment is further limited in that: the number of fixing assemblies 2 is multiple, and the multiple fixing assemblies 2 are arranged on both sides of the hanging box shaft assembly 1; the number of roller assemblies 3 is multiple, and the multiple roller assemblies 3 are arranged one by one on both sides of the multiple fixing assemblies 2. By arranging multiple fixing assemblies 2 on both sides of the hanging box shaft assembly 1, the external force borne by the hanging box shaft assembly 1 can be effectively balanced, providing stable support for the entire roller structure. The front and rear fixing assemblies 2 can effectively increase the flexibility of the roller structure, prevent excessive local stress caused by unilateral stress concentration, ensure that the hanging box shaft assembly 1 and its connected components work within a reasonable stress range, and effectively utilize the mechanical properties of the material. At the same time, this layout enhances the ability of the entire structure to resist torsion and bending. When external torque or bending moment acts on the device, the fixing assemblies 2 on both sides can work together to provide a counteracting moment to balance the external force, so that the hanging box shaft assembly 1 maintains a stable position and posture, thereby maintaining the normal function of the device.

[0037] As shown, Figure 2 and Figure 3As shown, in addition to the features of the above embodiments, this embodiment is further limited in that the hanging box shaft assembly 1 is provided with a mounting hole 101, which is a threaded hole or a through hole, and the hanging box 4 is located at the mounting hole 101. By arranging the hanging box 4 on the mounting hole 101 of the hanging box shaft assembly 1, since the mounting hole 101 is a threaded hole or a through hole, a stable connection point for power transmission is provided. It ensures that power can be transmitted along the predetermined path, avoiding loss and deviation during power transmission. At the same time, the mounting hole 101 provides a fixed mounting reference for the hanging box 4, so that the hanging box 4 can drive the movement of the hanging box shaft assembly 1 in a more stable manner when transmitting power.

[0038] As shown in Figure 3 and Figure 4 As shown, in addition to the features of the above embodiments, this embodiment is further limited in that the fixing assembly 2 includes a base assembly 21 and a plurality of connecting side plates 22, the plurality of connecting side plates 22 are arranged on both sides of the base assembly 21, the connecting side plates 22 are provided with roller assembly holes 201, the roller assemblies 3 are arranged on the connecting side plates 22 and located at the roller assembly holes 201, the base assembly 21 is provided with a plurality of shaft holes 202 and pin holes 203, the hanging box shaft assembly 1 is arranged on the base assembly 21 and located at the plurality of shaft holes 202 and pin holes 203, and the plurality of shaft holes 202 are adapted to the limiting shafts 11 of the hanging box shaft assembly 1. By arranging the plurality of connecting side plates 22 on both sides of the base assembly 21, a more balanced support structure is provided for the entire device. By arranging the roller assemblies 3 on the roller assembly holes 201 provided on the connecting side plates 22, the weight of the sliding door device can be evenly transmitted to the roller assemblies 3 through the connecting side plates 22. This balanced weight distribution helps to prevent the sliding door device from sinking or tilting on one side when heavy objects are placed, maintaining the overall level and stability of the sliding door device. At the same time, the roller assembly holes 201 provide accurate mounting positions for the roller assemblies 3, ensuring that the roller assemblies 3 are in contact with the ground or track at the appropriate height and position, ensuring that the rollers roll in the expected manner, achieving smooth movement of the device, and maintaining the correct movement trajectory during movement. By arranging a plurality of shaft holes 202 on the base assembly 21 and arranging the hanging box shaft assembly 1 on the plurality of shaft holes 202, since the shaft holes 202 are adapted to the limiting shafts 11, and the pin holes 203 have a certain space, the fixing assembly 2 can rotate around the hanging box shaft assembly 1 when bearing the weight of the door or the force of movement, allowing the force to be evenly distributed to the roller assemblies 3, avoiding overloading of some or several roller assemblies 3, allowing each roller assembly 3 to work within its normal load range, prolonging the service life of the roller assemblies 3. At the same time, since the roller assemblies 3 work in a stable stress state, the movement trajectory of the door during opening and closing is more accurate and will not deviate or shake due to uneven stress, improving the user experience.

[0039] As Figure 3 and Figure 4 shown, in addition to the features of the above embodiments, this embodiment is further limited in that: the base assembly 21 comprises a base 211 and a plurality of clamping sleeves 212, the plurality of clamping sleeves 212 are arranged on the base 211 and respectively form a plurality of shaft holes 202 with the base 211. By arranging a plurality of clamping sleeves 212 on the base 211 and forming a plurality of shaft holes 202 with the base 211, the shaft hole 202 is used to fix the hanging box shaft assembly 1. First, the base 211 needs to have sufficient strength and stability to withstand the weight and load of the shaft assembly and its connected components. Second, the arrangement of multiple shaft holes 202 can make the fixing position of the hanging box shaft assembly 1 more stable and prevent unnecessary displacement in the shaft hole 202. The arrangement of multiple clamping sleeves 212 helps to disperse the force and effectively resist the deformation of the shaft hole 202 caused by external force, increase the rigidity of the entire roller structure, and improve the anti-deformation ability of the structure, ensuring that the hanging box shaft assembly 1 can always remain in the correct position under normal working environment.

[0040] As Figure 4 and Figure 5 shown, in addition to the features of the above embodiments, this embodiment is further limited in that: the roller assembly 3 comprises a roller 31 and a roller shaft assembly 32, the roller 31 is arranged on the roller shaft assembly 32, and the roller shaft assembly 32 is arranged on the fixing assembly 2 at the roller assembly hole 201. By arranging the roller 31 on the roller shaft assembly 32, the roller 31 can rotate around the roller shaft assembly 32 during the opening and closing of the door, thereby converting the sliding friction between the door and the track into rolling friction. This rolling friction method can greatly reduce the friction, allowing users to push the door with less force, making the door pushing action more relaxed and smooth. The roller shaft assembly 32 provides a stable rotation center for the roller 31, ensuring that the roller 31 can move along the predetermined trajectory during rolling, which helps the door to maintain straight-line motion when moving, avoiding deviation or shaking, and allowing the door to accurately fit the door frame, ensuring normal closing and opening of the door, and improving the motion accuracy of the sliding door device. Arranging the roller shaft assembly 32 at the roller assembly hole 201 of the fixing assembly 2 provides an accurate installation position for the roller shaft assembly 32, ensuring the positional accuracy of the roller shaft assembly 32 in the device. At the same time, the roller assembly hole 201 limits the movement of the roller shaft assembly 32 in the horizontal and vertical directions, ensuring that the roller shaft assembly 32 always remains in the correct position and ensuring the normal operation of the sliding door device.

[0041] As Figure 4 andFigure 5 As shown, in addition to the features of the above embodiments, this embodiment further defines the roller shaft assembly 32 as follows: the roller shaft assembly 32 includes a shaft body 321, a first limiting piece 322, and a second limiting piece 323. The shaft body 321 passes through the roller 31, the first limiting piece 322 is disposed on the shaft body 321 and abuts against the roller 31, and the second limiting piece 323 is disposed on the shaft body 321 and located at the end of the shaft body 321. By passing the shaft body 321 through the roller 31, disposing of the first limiting piece 322 on the shaft body 321 and abutting against the roller, and disposing of the second limiting piece 323 on the shaft body 321 and located at the end of the shaft body 321, the second limiting piece 323 acts as a stop at the end of the shaft body 321. This design can accurately position the roller 31 on the fixing assembly 2, prevent the roller 31 from sliding axially on the shaft body 321, and ensure that the roller 31 works stably in the predetermined position. This is crucial for the normal operation of the device, because if roller 31 falls off, it will affect the stability and smoothness of its rolling, which will seriously affect the motion function of the entire device and may even lead to damage to the device.

[0042] like Figure 3 and Figure 6 As shown, in addition to the features of the above embodiments, this embodiment further defines that: the hanging box 4 includes a hanging box shaft 41 and a hanging box block 42. The hanging box shaft 41 passes through the hanging box shaft assembly 1 and is located at the mounting hole 101 provided in the hanging box shaft assembly 1. The hanging box block 42 is disposed on the hanging box shaft 41. By passing the hanging box shaft 41 through the hanging box shaft assembly 1 and being located at the mounting hole 101, and disposing of the hanging box block 42 on the hanging box shaft 41, an effective power transmission path is constructed from the drive source to the roller structure. The hanging box shaft 41 passing through the mounting hole 101 of the hanging box shaft assembly 1 strengthens the connection between the various components, provides stable support for the hanging box block 42, and tightly connects the hanging box shaft assembly 1 with the drive system, making the entire sliding door device an organic whole. This tight connection method can improve the overall strength of the device and better withstand the weight of the door and various external forces. At the same time, this design helps to improve the structural stability of the sliding door device. During long-term use, it can reduce device failures caused by loose or displaced parts. The stable structure can ensure that the sliding door device operates normally during frequent opening and closing operations, thus extending the device's service life.

[0043] Example 2

[0044] like Figures 1 to 6 As shown, this embodiment discloses a sliding door device, including: the roller structure described above, wherein there are multiple sets of roller structures; a door body, which is disposed on the multiple sets of roller structures; and a track, wherein the roller structures are disposed on the track and are capable of moving along the track.

[0045] The second aspect of the application discloses a sliding door device, by setting the door body on the roller structure, setting the roller structure on the track, so that the roller structure can move on the track, thereby driving the movement of the door body, this way changes the friction mode between the door body and the track from sliding friction to rolling friction. The rolling friction coefficient is much smaller than the sliding friction coefficient, which greatly reduces the force required to push the door body. At the same time, the rolling of the roller on the track can effectively reduce the jamming during the movement of the door body. Since the roller can rotate flexibly on the track, it avoids the jamming of the door body due to the unevenness of the track surface or the uneven friction, making the movement of the door body relatively smooth. In addition, since the fixed assembly 2 can rotate on the hanging box shaft assembly 1 according to the stress condition, the roller assembly 3 can be in contact with the track at the same time, avoiding the concentration of weight in a certain local area, evenly distributing the stress, and reducing the pressure on the track and the door body support structure. Whether it is a hanging structure or a pushing structure, it can make the movement of the door body more smooth, and improve the user's use experience.

[0046] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, but as long as the combinations of the technical features do not exist contradictory, they should be considered within the scope of the present application.

[0047] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, some modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A roller structure, characterized by, The roller structure comprises: A hanging box shaft assembly (1); A fixing assembly (2) provided with a roller assembly hole (201) and a shaft hole (202), the hanging box shaft assembly (1) is arranged on the fixing assembly (2) and located at the shaft hole (202), and the fixing assembly (2) can rotate relative to the hanging box shaft assembly (1); A roller assembly (3) arranged on the fixing assembly (2) and located at the roller assembly hole (201); A hanging box (4) arranged on the hanging box shaft assembly (1).

2. The roller structure of claim 1, wherein The hanging box shaft assembly (1) comprises limiting shafts (11), a connecting block (12) and limiting pins (13), the number of the limiting shafts (11) and the limiting pins (13) is multiple, multiple limiting pins (13) are correspondingly arranged on multiple limiting shafts (11), multiple limiting shafts (11) are arranged at two ends of the connecting block (12), the connecting block (12) is provided with a mounting hole (101), the hanging box (4) is arranged on the connecting block (12) and located at the mounting hole (101), the fixing assembly (2) is provided with a pin hole (203), and the limiting pin (13) extends to the pin hole (203).

3. The roller structure according to claim 2, wherein The cross-sectional shape of the limiting shaft (11) is circular; Or the cross-sectional shape of the limiting shaft (11) is oval; Or the cross-sectional shape of the limiting shaft (11) is approximately oval; Or the cross-sectional shape of the limiting shaft (11) is polygonal; Or the number of the limiting pins (13) is two, three or four.

4. The roller structure according to claim 1, wherein The number of the fixing assemblies (2) is multiple, multiple fixing assemblies (2) are arranged on the hanging box shaft assembly (1), the number of the roller assemblies (3) is multiple, and multiple roller assemblies (3) are correspondingly arranged on two sides of multiple fixing assemblies (2); And / or the fixing assembly (2) is provided with a mounting hole (101), the mounting hole (101) is a threaded hole or a via hole, and the hanging box (4) is located at the mounting hole (101).

5. The roller structure of claim 1, wherein The fixing assembly (2) comprises a base assembly (21) and a connecting side plate (22), the number of the connecting side plates (22) is multiple, multiple connecting side plates (22) are arranged on two sides of the base assembly (21), the connecting side plate (22) is provided with the roller assembly hole (201), the roller assembly (3) is arranged on the connecting side plate (22) and located at the roller assembly hole (201), the base assembly (21) is provided with multiple shaft holes (202) and pin holes (203), the hanging box shaft assembly (1) is arranged on the base assembly (21) and located at the multiple shaft holes (202) and the pin holes (203), and the hole type of the multiple shaft holes (202) is matched with the limiting shaft (11) of the hanging box shaft assembly (1).

6. The roller structure of claim 5, wherein, The base assembly (21) comprises a base (211) and a plurality of clamping sleeves (212), the clamping sleeves (212) are arranged on the base (211) and form a plurality of shaft holes (202) with the base (211) respectively.

7. The roller structure of claim 1, wherein The roller assembly (3) comprises a roller (31) and a roller shaft assembly (32), the roller (31) is arranged on the roller shaft assembly (32), and the roller shaft assembly (32) is arranged on the fixing assembly (2) and located at the roller assembly hole (201).

8. The roller structure of claim 7, wherein, The roller shaft assembly (32) comprises a shaft body (321), a first limiting piece (322) and a second limiting piece (323), the shaft body (321) penetrates the roller (31), the first limiting piece (322) is arranged on the shaft body (321) and abuts against the roller (31), and the second limiting piece (323) is arranged on the shaft body (321) and located at the end of the shaft body (321).

9. The roller structure of claim 1, wherein, The hanging box (4) comprises a hanging box shaft (41) and a hanging box block (42), the hanging box shaft (41) penetrates the hanging box shaft assembly (1) and is located at the mounting hole (101) of the hanging box shaft assembly (1), and the hanging box block (42) is arranged on the hanging box shaft (41).

10. A sliding door arrangement, characterized in that The sliding door device comprises: The roller structure according to any one of claims 1 to 9, a plurality of groups of the roller structure are arranged on the track; The door body is arranged on the plurality of groups of the roller structure; The track is arranged on the track and can move along the track.

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