Roller assembly and sliding door

Abstract

The utility model relates to the technical field of sliding door accessories, in particular to a roller assembly which comprises a shell and a roller frame movably arranged in the shell, a wedge matching structure is arranged between the roller frame and the shell, and the roller assembly further comprises a sliding block, the adjusting piece is used for adjusting the relative height of the roller frame in the shell through the wedge matching structure, and the problem that an existing roller assembly is relatively poor in practicability when used is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sliding door accessory technical field, especially a kind of roller assembly. BACKGROUND

[0002] As the building material commonly used in daily life, the structure of sliding door is mostly to set slide on the upper and lower sides of door body, and set corresponding roller assembly in slide, to realize the sliding of sliding door on corresponding carrier (carrier such as bottom surface, door frame or window frame etc.).

[0003] And the traditional roller assembly is directly installed in slide by rotating shaft, or assembled by roller frame and then installed in slide, which has the defect that the installation size between roller and slide is relatively fixed, and the height of roller cannot be adjusted according to the slide of different height, so it cannot meet the installation needs of different slide size, and the practicability is poor. UTILITY MODEL CONTENT

[0004] In order to solve the above technical problems, the purpose of the utility model is to provide a roller assembly, which solves the problem of poor practicability of the existing roller assembly.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a roller assembly, comprising a shell and a roller frame movably arranged in the shell, a wedge cooperation structure is arranged between the roller frame and the shell, and the roller assembly further comprises an adjusting member for driving the roller frame to displace, so as to adjust the relative height of the roller frame in the shell through the wedge cooperation structure.

[0006] Further, the adjusting member comprises a bolt passing through the shell, one end of the bolt is screwed on the roller frame, so as to drive the roller frame to move by rotating the bolt.

[0007] By rotating the bolt on the shell, the roller frame is driven to move horizontally relative to the shell by thread cooperation with the roller frame, and the height of the roller frame is adjusted by the wedge cooperation structure. This way is simple for height adjustment of the roller frame, and the structure between the roller frame and the shell is relatively stable after adjustment.

[0008] Further, a cooperating nut is embedded in the roller frame, and one end of the bolt is screwed in the cooperating nut, so that the bolt and the roller frame form thread cooperation.

[0009] By adopting the above technical scheme, the connecting force point between the roller frame and the bolt is transferred to the cooperating nut by setting the cooperating nut in the roller frame, which effectively avoids the problem that the connecting part between the bolt and the roller frame is easy to wear and damage by directly opening the screw hole matched with the bolt in the roller frame, and significantly increases the structural strength of the thread cooperation part between the roller frame and the bolt.

[0010] Further, the shell is provided with a waist-shaped hole, and the bolt is movably arranged in the waist-shaped hole along the length direction of the waist-shaped hole.

[0011] By adopting the above technical scheme, the waist-shaped hole can fine-tune the vertical height of the bolt on the shell, thereby adapting to the height change of the roller frame in the shell.

[0012] Further, the wedge cooperation structure comprises an inclined guide groove and a pin shaft slidingly arranged in the inclined guide groove, and the pin shaft and the inclined guide groove are arranged on the roller frame and the shell respectively.

[0013] By adopting the above technical scheme, the pin shaft slides along the inclined guide groove, thereby enabling the relative lifting movement of the roller frame in the shell, and fine-tuning the height between the roller frame and the shell.

[0014] Further, the roller frame comprises an inner shell and a roller set detachably arranged in the inner shell, and the wedge cooperation structure is arranged between the inner shell and the shell.

[0015] By adopting the above technical scheme, the roller set provided with the roller is detachably arranged on the inner shell, facilitating the replacement of the roller, so that when the roller set is damaged, the corresponding roller set can be directly replaced.

[0016] Further, the roller assembly further comprises a rotating fastener, the rotating fastener is detachably connected to the shell, and the side surface of the shell is provided with a avoiding gap allowing the rotating fastener to extend out of the shell after rotation.

[0017] By adopting the above technical scheme, after the rotating fastener extends out of the shell, the extended rotating fastener abuts against the inner wall of the slide on the corresponding carrier, thereby enabling the roller assembly to be conveniently installed on the corresponding carrier.

[0018] Further, the rotating fastener comprises a fixed sheet and a stud arranged on the fixed sheet, and the top of the shell is provided with a matching screw hole threadedly matched with the stud.

[0019] By adopting the above technical scheme, the screw connection facilitates the disassembly and assembly between the rotating fastener and the shell.

[0020] A sliding door comprises a door body, the door body is provided with a slide on both upper and lower sides, and a roller assembly is arranged in at least one slide.

[0021] Further, the slide comprises at least two sliding grooves, the roller assembly is arranged in any sliding groove, and a guide wheel connected with a carrier of the sliding door is rolling arranged in the other sliding groove.

[0022] By adopting the above technical solution, and by setting roller assemblies and guide wheels in different tracks, the stability, smoothness and quietness of the sliding door when sliding on the corresponding carrier can be enhanced.

[0023] Compared with the prior art, the advantages of this utility model are:

[0024] 1. In this utility model, by finely adjusting the height of the roller frame in the roller assembly within the outer casing, the roller assembly can adapt to different sliding door track installation requirements, effectively enhancing the applicable scenarios of the roller assembly and improving its installation practicality.

[0025] 2. In this utility model, after the roller frame is displaced by the adjusting component, the height of the roller frame is adjusted by the wedge-shaped engagement structure. The wedge-shaped engagement structure can convert a small force in the horizontal direction into a relatively large displacement in the vertical direction, which facilitates the quick and easy adjustment of the height of the roller frame relative to the outer shell. At the same time, due to the angle and design of the wedge, the force distribution can be more uniform, reducing the occurrence of local stress concentration and easy damage to components such as the outer shell or roller frame. In addition, the wedge-shaped engagement structure is usually designed with a large contact area, which helps to distribute the load and reduce the relative sliding between components, thereby reducing the wear rate between the outer shell and the roller frame, reducing the risk of component damage due to wear, and improving the durability of the product structure. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the roller assembly structure of this utility model.

[0027] Figure 2 This is an exploded view of the roller assembly structure of this utility model.

[0028] Figure 3 This is a schematic diagram of the wedge fit structure of this utility model.

[0029] Figure 4 This is a schematic diagram of the sliding door structure of this utility model.

[0030] Figure 5 This utility model Figure 4 Enlarged view of the structure at point A in the middle.

[0031] Figure 6 This is a schematic diagram of the guide wheel structure of this utility model.

[0032] Figure 7 This is a schematic diagram of another embodiment of the guide wheel of this utility model.

[0033] Figure 8 This is a schematic diagram of the bolt structure of this utility model.

[0034] In the diagram: 100 door body, 110 slide rail, 111 slide groove.

[0035] 200 housing, 210 mating screw hole, 220 roller groove, 230 clearance notch, 240 oblong hole.

[0036] 300 wedge fit structure, 310 pin, 320 inclined guide groove, 330 guide slope, 340 slider.

[0037] 400 Roller Frame, 410 Inner Shell, 420 Roller Assembly, 421 Frame, 422 Rollers.

[0038] 500 guide wheel, 510 mounting bracket, 520 swivel wheel.

[0039] 600 fits the nut.

[0040] 700 Adjusting component, 710 Nut part, 720 Screw part.

[0041] 800 rotary fastener, 810 retaining plate, 820 stud, 830 operating screw head. Detailed Implementation

[0042] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0043] Reference Figure 1 and 2 A roller assembly is commonly installed on the upper and lower sides of sliding doors and windows. Taking a sliding door as an example, it includes a door body 100. In order to hide the roller assembly, the existing door body 100 is provided with slide rails 110 on both the upper and lower sides to accommodate the roller assembly. In this embodiment, in order to adapt to different slide rail 110 depth dimensions, the height of the roller 422 in the roller assembly is finely adjusted, so that the roller assembly can adapt to different track installation needs, effectively enhancing the applicable scenarios of the roller assembly and improving its installation practicality.

[0044] Specifically, the roller assembly includes a housing 200 and a roller frame 400 movably disposed within the housing 200. The roller 422 is disposed on the roller frame 400. A wedge engagement structure 300 is provided between the roller frame 400 and the housing 200. The roller assembly also includes an adjusting member 700 for displacing the roller frame 400. The adjusting member 700 drives the roller frame 400 to move relative to each other within the housing 200. During the movement, the wedge engagement structure 300 between the housing 200 and the roller 422 is used to change the relative height of the roller frame 400 within the housing 200, thereby achieving the purpose of adjusting the height of the roller frame 400.

[0045] In this embodiment, the wedge-fitting structure 300 can convert a small force in the horizontal direction into a relatively large displacement in the vertical direction, which facilitates quick and easy height adjustment of the roller frame 400 relative to the outer shell 200. At the same time, due to the angle and design of the wedge, the force distribution can be more uniform, reducing the occurrence of local stress concentration and the possibility of damage to components such as the outer shell 200 or the roller frame 400.

[0046] Meanwhile, the wedge-fit structure 300 is usually designed with a large contact area, which helps to distribute the load and reduce the relative sliding between the components, thereby reducing the wear rate between the housing 200 and the roller frame 400, reducing the risk of component wear and damage, and improving the durability of the product structure.

[0047] This design significantly reduces the instability that might result from directly applying vertical force. For example, if the contact between the bolt and roller 422 is not perfectly planar when the bolt directly contacts the roller, it could cause the roller 422 to tilt or move irregularly.

[0048] Since the carrier on which the roller assembly is installed is generally a door 100, a sliding window, etc., the outer shell 200 and the roller frame 400 are mostly long column shapes. In this embodiment, the outer shell 200 is described as a cuboid. The outer shell 200 has an open cavity with the opening facing the inside, and the roller frame 400 is movably disposed in the open cavity along its length.

[0049] In this embodiment, refer to Figure 2 and 7 The adjusting component 700 includes a bolt, which includes a screw portion 720 and a nut portion 710. The screw portion 720 is movably inserted through one end of the housing 200, and the nut portion 710 is located at the end of the housing 200. The end of the screw portion 720 away from the nut portion 710 is screwed onto the roller frame 400. By rotating the nut portion 710, a threaded engagement can be formed between the screw portion 720 and the roller frame 400, thereby allowing the roller frame 400 to slide inside the housing 200. During the sliding process, due to the presence of the wedge engagement structure 300, the horizontal movement of the roller frame 400 is converted into a change in the height of the roller frame 400 relative to the housing 200, thereby realizing the adjustment of the height of the roller frame 400.

[0050] In this embodiment, the end of the outer shell 200 is provided with an oblong hole 240 to allow the screw portion 720 to be rotatably mounted on the outer shell 200. The oblong hole 240 also allows for adjustment of the relative height of the screw portion 720 at the end of the outer shell 200 after vertical displacement between the roller frame 400 and the outer shell 200, preventing the screw portion 720 from tilting due to the roller frame 400 rising and falling relative to the outer shell 200. Of course, in this embodiment, the tilt of the screw is very small when the height of the roller frame 400 within the outer shell 200 is adjusted by the screw; therefore, the oblong hole 240 can also be a circular through hole. This embodiment preferably uses an oblong hole 240.

[0051] In this embodiment, as a screw connection method between the roller frame 400 and the screw part 720, a screw hole is opened at the end of the roller 422, and the screw part 720 is screwed into the screw hole to engage with the roller frame 400.

[0052] As another embodiment where the roller frame 400 is screwed to the screw portion 720, refer to Figure 2 The roller frame 400 can be fitted with a mating nut 600 inside, so that the stress point of the connection between the roller frame 400 and the bolt is transferred to the mating nut 600. This effectively avoids the problem of easy wear and damage at the connection between the two due to directly drilling a screw hole on the roller frame 400, and significantly increases the structural strength of the threaded connection between the roller frame 400 and the bolt.

[0053] Based on the above embodiments, as one embodiment of the wedge-fit structure 300, refer to... Figure 2 It includes an inclined guide groove 320 and a pin 310 slidably disposed in the inclined guide groove 320. Either the pin 310 or the inclined guide groove 320 is disposed on the roller frame 400, and the other is disposed on the outer shell 200. In this embodiment, the inclined guide groove 320 is opened on the roller frame 400 and the pin 310 is fixed inside the outer shell 200 as an example for explanation.

[0054] In this embodiment, the roller frame 400 includes an inner shell 410 that can be detachably fitted into the inner shell 410. The roller assembly 420 includes a frame 421 and rollers 422 rotatably disposed within the frame 421. The inner shell 410 has an opening-oriented cavity inside. Inclined guide grooves 320 are correspondingly opened on the front and rear sides of the inner shell 410. When the inner shell 410 is assembled into the interior of the outer shell 200, the pin 310 inside the outer shell 200 passes through the two inclined guide grooves 320 on the front and rear sides of the inner shell 410. When the inner shell 410 slides along the length direction of the outer shell 200, due to the guiding effect of the inclined guide grooves 320 and the pin 310, the inner shell 410 moves up and down relative to the outer shell 200, thereby achieving the purpose of adjusting the height of the rollers 422.

[0055] In this embodiment, roller grooves 220 are provided on the top of the inner shell 410 and the bottom of the outer shell 200 corresponding to the position of the roller 422. This allows the roller 422 to be visually observed through the roller grooves 220 after it is assembled into the outer shell 200 through the frame 421 and the inner shell 210, and also facilitates cleaning and maintenance of the roller 422.

[0056] In this embodiment, the frame 421 is inserted into the cavity in an embedded manner, which facilitates the maintenance and replacement of the corresponding roller 422 when it is damaged, thereby reducing product maintenance costs.

[0057] In this embodiment, the mating nut 600 is embedded in the cavity. Preferably, the shape of the mating nut 600 is the same as the shape of the vertical cross section of the cavity, so that the two cannot rotate relative to each other after the mating nut 600 is embedded in the cavity.

[0058] As another embodiment of the wedge-fit structure 300, refer to Figure 3 The wedge-fit structure 300 includes a guide slope 330 and a slider 340. The guide slope 330 is located at the upper end of the inner shell 410, while the slider 340 is located on the top wall of the open cavity of the outer shell 200. When the inner shell 410 slides horizontally relative to the outer shell 200, the slider 340 slides relative to the guide slope 330 to guide the vertical displacement between the inner shell 410 and the outer shell 200, thus achieving the above-mentioned effect.

[0059] Based on the above embodiments, it can be imagined that as long as the corresponding adjusting member 700 drives the horizontal displacement between the inner shell 410 and the outer shell 200, and then the height of the inner shell 410 is adjusted in conjunction with the wedge engagement structure 300, the height of the entire roller 422 can be adjusted. The wedge engagement structure 300 can also be other structures, which will not be described in detail here.

[0060] Based on the above embodiments, in order to facilitate the convenient installation of the entire roller assembly into the slide rail 110 on the door body 100, refer to Figure 2 The roller assembly also includes a rotating fastener 800, which is detachably screwed onto the housing 200. The side of the housing 200 is provided with a clearance notch 230 that allows the rotating fastener 800 to extend out of the housing 200 after rotation. In this way, when the entire roller assembly is embedded in the slide rail 110 of the door body 100, the rotating fastener 800 can be rotated to extend out of the housing 200 and abut against the inner wall of the slide rail 110, thus quickly completing the installation of the entire roller assembly on the door body 100 and other corresponding carriers.

[0061] In this embodiment, the rotating fastener 800 is disposed on both ends of the interior of the housing 200. It includes a fixing plate 810 and a stud 820 disposed on the fixing plate 810. The fixing plate 810 is rectangular in shape and has a long side and a wide side. The top of the housing 200 is provided with a mating screw hole 210 corresponding to the position of the stud 820. The stud 820 is located at the bottom of the fixing plate 810 and is provided with an operating screw head 830, so that the operating screw head 830 can be operated by tools such as a wrench, thereby driving the fixing plate 810 and the fixing plate 820. When the stud 820 rotates, it engages with the screw hole 210, thus assembling the rotating fastener 800 with the outer shell 200. When the fixing piece 810 rotates, its position changes from parallel to the length of the inner shell 410 to perpendicular to the length of the inner shell 410. At this time, the wide side of the fixing piece 810 extends out of the clearance notch 230 to abut against the inner wall of the slide rail 110, thereby achieving the purpose of convenient installation between the entire roller assembly and the slide rail 110 of the door body 100.

[0062] In this embodiment, to make the door 100 more stable when pushed and pulled, referring to 4 and 5, the slide 110 includes at least two slide grooves 111, and multiple slide grooves 111 are arranged side by side. In this embodiment, two slide grooves 111 are used as an example. The roller assembly mentioned above is located in one slide groove 111, and a guide wheel 500 is rolled in the other slide groove 111. The guide wheel 500 is used to connect with the sliding door carrier roller 422. The sliding door carrier may be the ground or a door frame. In this way, by increasing the number of slide grooves 111 and setting the roller assembly and guide wheel 500 in the width direction of the slide 110, the stability of the door 100 when pushed and pulled can be effectively enhanced.

[0063] In this embodiment, refer to Figure 6 As one embodiment of the guide wheel 500, it includes a mounting bracket 510 and a rotating wheel 520 rotatably disposed within the mounting bracket 510. The mounting bracket 510 is installed on the ground or door frame where the door body 100 is located by means of screwing or bonding. The rotating wheel 520 is correspondingly rolled within the slide groove 111. In this way, when the door body 100 moves through the roller assembly, the rotation of the rotating wheel 520 within the slide groove 111 can improve the sliding stability of the door body 100, prevent the door body 100 from shaking, and make the sliding of the door body 100 more smooth and quiet.

[0064] Reference Figure 7 The aforementioned mounting bracket 510 has an "L"-shaped structure, designed to allow the guide wheel 500 to be installed on a vertical wall or door frame. However, when the slide rail 110 and the carrier of the door body 100 are located on the same vertical plane, the mounting bracket 510 can also be elongated, such as... Figure 7 As shown, depending on the installation environment of the guide wheel 500, it can also be in other shapes, which will not be elaborated here.

[0065] Although the preferred embodiments of the present invention have been described in detail above, it should be clearly understood that various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A roller assembly, comprising a housing and a roller frame movably disposed within the housing, characterized in that, A wedge-fitting structure is provided between the roller frame and the housing. The roller assembly also includes an adjusting member for driving the roller frame to move, so as to adjust the relative height of the roller frame within the housing through the wedge-fitting structure.

2. A roller assembly according to claim 1, characterized in that, The adjusting component includes a bolt passing through the housing, one end of which is screwed onto the roller frame so that the roller frame can be moved by rotating the bolt.

3. A roller assembly according to claim 2, characterized in that, The roller frame is fitted with a matching nut, and one end of the bolt is screwed into the matching nut so that a threaded engagement is formed between the bolt and the roller frame.

4. A roller assembly according to claim 2, characterized in that, The outer casing is provided with a waist-shaped hole, and the bolt is movably inserted through the waist-shaped hole along its length.

5. A roller assembly according to claim 1, characterized in that, The wedge-fit structure includes an inclined guide groove and a pin that slides in the inclined guide groove. Either the pin or the inclined guide groove is located on the roller frame, and the other is located on the outer casing.

6. A roller assembly according to claim 1, characterized in that, The roller frame includes an inner shell and a roller assembly that can be detached from the inner shell, and the wedge-fitting structure is disposed between the inner shell and the outer shell.

7. A roller assembly according to claim 1, characterized in that, The roller assembly also includes a rotating fastener that is detachably screwed onto the housing, and the side of the housing has a clearance notch that allows the rotating fastener to extend out of the housing after rotation.

8. A roller assembly according to claim 7, characterized in that, The rotating fastener includes a fixing plate and a stud on the fixing plate, and the top of the housing is provided with a mating screw hole that forms a threaded engagement with the stud.

9. A sliding door, comprising a door body, characterized in that, The door body is provided with slides on both the upper and lower sides, and the roller assembly described in any one of claims 1-8 is correspondingly provided in at least one of the slides.

10. A sliding door according to claim 9, characterized in that, The slide rail includes at least two grooves, the roller assembly is disposed in any of the grooves, and a guide wheel connected to the sliding door carrier is rotatably disposed in the groove.

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