Telescopic support and movable partition door

Abstract

The utility model provides a telescopic support and a movable partition door, and the telescopic support comprises a first telescopic pipe and a second telescopic pipe, the second telescopic pipe is inserted into the first telescopic pipe, and the second telescopic pipe and the first telescopic pipe are arranged at an interval; the third telescopic pipe is inserted into the second telescopic pipe, and the third telescopic pipe and the second telescopic pipe are arranged at intervals; the rolling wheels are arranged at intervals, each rolling wheel penetrates through the second telescopic pipe and is rotationally connected with the second telescopic pipe, each rolling wheel is clamped between the first telescopic pipe and the third telescopic pipe, and the rolling wheels abut against the inner side face of the first telescopic pipe and the outer side face of the third telescopic pipe. According to the telescopic support, when one telescopic pipe slides, the other telescopic pipe adjacent to the telescopic pipe slides correspondingly, so that synchronous sliding of the two telescopic pipes is achieved, and the situation that the telescopic pipe with large supporting force is damaged due to the fact that the supporting force difference of the three telescopic pipes is large is avoided.

Description

Technical Field

[0001] This utility model relates to the field of mechanical power transmission technology, and in particular to a telescopic bracket and a movable partition door. Background Technology

[0002] Movable partition doors, also known as movable screens, are widely used in hotels and exhibition halls. They are mainly used to divide the same space into at least two spaces according to temporary needs. Specifically, a track is pre-installed on the top of the wall, and the tops of multiple movable partition doors are suspended on the track, while the bottoms are supported on the ground. The multiple movable partition doors are pushed out in sequence by the drive installed on the track, thereby separating spaces of different sizes.

[0003] While multiple sliding partition doors can divide the same space into at least two, because each sliding partition door has the same specifications, when multiple sliding partition doors are used to partition a space, there may be situations where the distance between the last sliding partition door and the wall is less than the width of a single sliding partition door, or the sliding track installation of the sliding partition doors may cause the above problems. In such cases, the partition will be incomplete. Therefore, it is necessary to embed an extension door panel that slides and connects with the last sliding partition door on one side. A telescopic bracket needs to be added between the extension door panel and the sliding partition door to allow the extension door panel to extend or retract, thereby achieving a complete partition of the space, even if the extension door panel extends relative to the sliding partition door to close the last gap.

[0004] The telescopic support technology mainly includes three telescopic tubes that form a sliding connection. Specifically, a groove is designed on one of the telescopic tubes, and a guide rail is designed on another adjacent telescopic tube. The sliding connection between the two telescopic tubes is achieved through the sliding cooperation of the guide rail and the groove. Although this design can achieve sliding between the three telescopic tubes, when one telescopic tube slides, the other adjacent telescopic tube will not slide synchronously. This will result in a large difference in the supporting force of the three telescopic tubes, which can easily damage the telescopic tube with the greater supporting force. Utility Model Content

[0005] To address the shortcomings of the existing technology, this utility model proposes a telescopic support and a movable partition door to solve the problem that when one telescopic tube of the telescopic support slides, the adjacent telescopic tube does not slide synchronously, resulting in a large difference in the supporting force of the three telescopic tubes, which easily damages the telescopic tube with the greater supporting force.

[0006] In a first aspect, this utility model provides a telescopic bracket, which includes:

[0007] First telescopic tube;

[0008] The second telescopic tube is inserted into the first telescopic tube and is spaced apart from the first telescopic tube.

[0009] A third telescopic tube, which is inserted into the second telescopic tube and spaced apart from it; and...

[0010] The rollers include multiple rollers arranged at intervals. Each roller passes through the second telescopic tube and is rotatably connected to the second telescopic tube. Each roller is sandwiched between the first telescopic tube and the third telescopic tube. The rollers abut against the inner side of the first telescopic tube and the outer side of the third telescopic tube, respectively, so that the second telescopic tube is slidably connected to the first telescopic tube and the third telescopic tube is slidably connected to the second telescopic tube.

[0011] Preferably, the first telescopic tube, the second telescopic tube, and the third telescopic tube are all rectangular columnar structures; the roller includes a rotating shaft and a rolling part sleeved on the rotating shaft and rotatably connected to the rotating shaft, the two ends of the rotating shaft are respectively fixed to opposite sides of the second telescopic tube along its thickness direction, the side of the rolling part penetrates the second telescopic tube and abuts against the inner side of the first telescopic tube and the outer side of the third telescopic tube respectively.

[0012] Preferably, the roller further includes two annular guide portions formed by the two ends of the rolling portion protruding outward along the radial direction of the rolling portion; the inner side of the first telescopic tube is provided with two first guide grooves corresponding to the positions of the two guide portions, the first guide grooves extend along the sliding direction of the first telescopic tube, and the two guide portions respectively penetrate the second telescopic tube and abut against the two first guide grooves; the outer side of the third telescopic tube is provided with two second guide grooves corresponding to the positions of the two guide portions, the second guide grooves extend along the sliding direction of the third telescopic tube, and the two guide portions respectively abut against the two second guide grooves.

[0013] Preferably, the roller further includes an annular connecting portion that connects the outer periphery of the rolling portion and the guide portion, and the outer surface of the connecting portion is inclined.

[0014] Preferably, the second telescopic tube has a through hole corresponding to the position of the roller; the telescopic bracket also includes a fixing plate fastened to the through hole, and the fixing plate has an exposed hole through it that matches the rolling part, the guide part and the connecting part; the rolling part, the guide part and the connecting part respectively pass through the exposed hole and abut against the inner side of the first guide tube.

[0015] Preferably, the plurality of rollers are fixed on the upper and lower sides of the second telescopic tube respectively, and are distributed at intervals along the sliding direction of the second telescopic tube.

[0016] Preferably, the inner surfaces of the opposite sides of the first telescopic tube along its thickness direction are respectively provided with two inwardly recessed and spaced first sliding grooves, and the two first sliding grooves are respectively spaced apart from the two first guide grooves; the outer surfaces of the opposite sides of the second telescopic tube along its thickness direction are respectively provided with two outwardly protruding and spaced first guide rails, and the two first guide rails are respectively inserted into the two first sliding grooves, so that the second telescopic tube and the first telescopic tube form a sliding connection.

[0017] Preferably, the inner surfaces of the two opposite sides of the second telescopic tube along its thickness direction are respectively provided with two inwardly recessed and spaced second sliding grooves, and the two second sliding grooves are respectively spaced apart from the two guide portions; the outer surfaces of the two opposite sides of the third telescopic tube along its thickness direction are respectively provided with two outwardly protruding and spaced second guide rails, and the two second guide rails are respectively inserted into the two second sliding grooves, so that the third telescopic tube and the second telescopic tube form a sliding connection.

[0018] Preferably, the telescopic bracket further includes a mounting plate fixed to one end of the third telescopic tube, and the edge of the mounting plate is provided with a plurality of mounting holes that pass through it and are spaced apart from each other.

[0019] Secondly, this utility model provides a movable partition door, which includes a hollow main door panel, an extension door panel housed within the main door panel and slidably connected to the main door panel, and a telescopic bracket as described above installed within the main door panel, wherein the third telescopic tube is fixed to the side of the extension door panel near the telescopic bracket.

[0020] Compared with the prior art, the telescopic bracket in this utility model is designed with a first telescopic tube, a second telescopic tube, and a third telescopic tube. The second telescopic tube is inserted into the first telescopic tube, and the third telescopic tube is inserted into the second telescopic tube. At the same time, the side of the roller abuts against the inner side of the first telescopic tube and the outer side of the third telescopic tube, respectively. In this way, when one telescopic tube slides, the adjacent telescopic tube will also slide accordingly, thereby achieving synchronous sliding of the two telescopic tubes. This avoids the situation where the supporting force of the three telescopic tubes is greatly different, which would lead to the damage of the telescopic tube with the greater supporting force. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0022] Figure 1 A three-dimensional structural diagram of the telescopic bracket provided in an embodiment of this utility model;

[0023] Figure 2 This is an exploded view of a portion of the structure of the telescopic bracket provided in an embodiment of the present utility model;

[0024] Figure 3 For along Figure 1 Sectional view of line AA in the middle;

[0025] Figure 4 For along Figure 1 Sectional view of the middle BB line;

[0026] Figure 5 Exploded view of the structure of the rollers and fixing plate in the telescopic bracket provided in the embodiment of this utility model.

[0027] Figure 6 This is a diagram showing the extended state of the telescopic bracket provided in an embodiment of the present invention.

[0028] Among them, 100 is a telescopic bracket; 1 is a first telescopic tube; 11 is a first guide groove; 12 is a first sliding groove; 2 is a second telescopic tube; 21 is a perforation; 22 is a first guide rail; 23 is a second sliding groove; 3 is a third telescopic tube; 31 is a second guide groove; 32 is a second guide rail; 4 is a roller; 41 is a rotating shaft; 42 is a rolling part; 43 is a guide part; 44 is a connecting part; 5 is a fixing plate; 51 is an exposed hole; and 6 is a mounting plate. Detailed Implementation

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application, are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0030] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0031] It should be noted that the terms "above," "below," "left," and "right" mentioned in the embodiments of this utility model are used to describe the placement state in the accompanying drawings and should not be interpreted as limiting embodiments of this utility model. Furthermore, it should be understood that, in the text, when referring to an element that constitutes "above" or "below" another element, it is possible that the element directly constitutes "above" or "below" the other element, or it is possible that the element constitutes "above" or "below" the other element through an intermediate element.

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Example 1

[0034] This utility model embodiment provides a telescopic bracket 100, combined with... Figures 1 to 6 As shown, it includes a first telescopic tube 1, a second telescopic tube 2, a third telescopic tube 3, and a roller 4.

[0035] The second telescopic tube 2 is inserted into the first telescopic tube 1 and is spaced apart from the first telescopic tube 1; the third telescopic tube 3 is inserted into the second telescopic tube 2 and is spaced apart from the second telescopic tube 2.

[0036] In this embodiment, the first telescopic tube 1, the second telescopic tube 2, and the third telescopic tube 3 are all rectangular columnar structures. Of course, depending on actual needs, the first telescopic tube 1, the second telescopic tube 2, and the third telescopic tube 3 can also be other shapes, such as trapezoidal, elliptical, etc.

[0037] The rollers 4 include multiple rollers arranged at intervals. Each roller 4 passes through the second telescopic tube 2 and is rotatably connected to the second telescopic tube 2. Each roller 4 is sandwiched between the first telescopic tube 1 and the third telescopic tube 3. The rollers 4 abut against the inner side of the first telescopic tube 1 and the outer side of the third telescopic tube 3, respectively, so that the second telescopic tube 2 and the first telescopic tube 1 are slidably connected, and the third telescopic tube 3 and the second telescopic tube 2 are slidably connected. This allows the second telescopic tube 2 to extend or retract from the first telescopic tube 1, and the third telescopic tube 3 to extend or retract from the second telescopic tube 2.

[0038] The roller 4 includes a rotating shaft 41 and a rolling part 42 sleeved on the rotating shaft 41 and rotatably connected to the rotating shaft 41. The two ends of the rotating shaft 41 are respectively fixed to the opposite sides of the second telescopic tube 2 along its thickness direction. The side of the rolling part 42 passes through the second telescopic tube 2 and abuts against the inner side of the first telescopic tube 1 and the outer side of the third telescopic tube 3 respectively.

[0039] The roller 4 also includes two annular guide portions 43 formed by the two ends of the rolling portion 42 protruding outward along the radial direction of the rolling portion 42. The inner surface of the first telescopic tube 1 is provided with two first guide grooves 11 corresponding to the positions of the two guide portions 43. The first guide grooves 11 extend along the sliding direction or length direction of the first telescopic tube 1. The two guide portions 43 pass through the second telescopic tube 2 and abut against the two first guide grooves 11. The outer surface of the third telescopic tube 3 is provided with two second guide grooves 31 corresponding to the positions of the two guide portions 43. The two guide portions 43 abut against the two second guide grooves 31. This design allows the roller 4 to provide both guiding and limiting functions between the first telescopic tube 1 and the second telescopic tube 2, thereby improving the sliding stability between the first telescopic tube 1, the second telescopic tube 2, and the third telescopic tube.

[0040] The roller 4 also includes an annular connecting portion 44 that connects the outer periphery of the rolling portion 42 and the guide portion 43. The outer surface of the connecting portion 44 is inclined, and correspondingly, the first guide groove 11 and the second guide groove 31 also have inclined portions corresponding to the position of the connecting portion 44. This design can improve the structural strength of the guide portion 43, and at the same time further improve the sliding stability between the first telescopic tube 1, the second telescopic tube 2, and the third telescopic tube.

[0041] The second telescopic tube 2 has a through hole 21 corresponding to the position of the roller 4; the telescopic bracket 100 also includes a fixing plate 5 fastened to the through hole 21, and the fixing plate has an exposed hole 51 through it that matches the rolling part 42, the guide part 43, and the connecting part 44; the rolling part 42, the guide part 43, and the connecting part 44 respectively pass through the exposed hole 51 and abut against the inner side of the first guide tube. This design can further limit the position of the roller 4 through the fixing plate 5, and prevent it from shifting.

[0042] Multiple rollers 4 are fixed to the upper and lower sides of the second telescopic tube 2, and are spaced apart along the sliding direction or length direction of the second telescopic tube 2. This design can improve the sliding effect between the first telescopic tube 1, the second telescopic tube 2, and the third telescopic tube.

[0043] The first telescopic tube 1 has two inwardly recessed and spaced-apart first sliding grooves 12 on its inner sides on opposite sides along its thickness direction. These two first sliding grooves 12 are spaced apart from two first guide grooves 11. The second telescopic tube 2 has two outwardly protruding and spaced-apart first guide rails 22 on its outer sides on opposite sides along its thickness direction. These two first guide rails 22 are inserted into the two first sliding grooves 12, forming a sliding connection between the second telescopic tube 2 and the first telescopic tube 1. This design limits the sliding direction of the first telescopic tube 1 and the second telescopic tube 2, preventing positional misalignment during sliding.

[0044] The second telescopic tube 2 has two inwardly recessed and spaced second sliding grooves 23 on its inner sides on opposite sides along its thickness direction. These two second sliding grooves 23 are spaced apart from the two guide portions 43. The third telescopic tube 3 has two outwardly protruding and spaced second guide rails 32 on its outer sides on opposite sides along its thickness direction. These two second guide rails 32 are inserted into the two second sliding grooves 23, forming a sliding connection between the third telescopic tube 3 and the second telescopic tube 2. This design limits the sliding direction of the second telescopic tube 2 and the third telescopic tube 3, preventing positional misalignment during sliding.

[0045] The telescopic bracket 100 also includes a mounting plate 6 fixed to one end of the third telescopic tube 3. The edge of the mounting plate 6 is provided with a plurality of mounting holes that pass through it and are spaced apart from each other. This design allows the first telescopic tube 1 to be easily fixed in position through the plurality of mounting holes on the mounting plate 6 after it has been telescopically extended to a fixed position. When fixing, screws or bolts can be passed through the mounting holes to fix it to the corresponding position.

[0046] In this embodiment, when the telescopic bracket 100 is in use, one end of the first telescopic tube 1 is fixed to the last movable partition door, and the end of the third telescopic tube 3 away from the last movable partition door or the mounting plate 6 is fixed to the extension door panel that forms a sliding connection with the last movable partition door. In this way, when the space cannot be completely partitioned, the telescopic characteristics of the telescopic bracket 100 can be used to push the telescopic door to extend, so as to separate the remaining gap between the last movable partition door and the wall.

[0047] The telescopic bracket 100 in this embodiment has a three-layer telescopic structure, which can effectively push the extended door panel from the last movable partition door to the wall to close the last gap; at the same time, it can effectively adjust the width of the extended door panel, and does not require track support, which makes it more flexible and reliable and easy to operate.

[0048] The thickness directions of the first telescopic tube 1, the second telescopic tube 2, and the third telescopic tube 3 are respectively the directions of their second lengths, so as... Figure 4 For example, the direction from the top to the bottom is the direction of each side, and the opposite sides of each side in the thickness direction are the top and bottom sides of each side.

[0049] Compared with the prior art, the telescopic bracket 100 in this embodiment is designed with a first telescopic tube 1, a second telescopic tube 2, and a third telescopic tube 3. The second telescopic tube 2 is inserted into the first telescopic tube 1, and the third telescopic tube 3 is inserted into the second telescopic tube 2. At the same time, the side of the roller 4 abuts against the inner side of the first telescopic tube 1 and the outer side of the third telescopic tube 3, respectively. In this way, when one telescopic tube slides, the adjacent telescopic tube will also slide accordingly, thereby realizing the synchronous sliding of the two telescopic tubes. This avoids the situation where the supporting force of the three telescopic tubes is greatly different, which would lead to the damage of the telescopic tube with the greater supporting force.

[0050] Example 2

[0051] This embodiment provides a movable partition door, which includes a hollow main door panel, an extension door panel housed within the main door panel and slidably connected to the main door panel, and a telescopic bracket 100 as described in Embodiment 1 above installed within the main door panel, with a third telescopic tube 3 fixed to the side of the extension door panel near the telescopic bracket.

[0052] One end or the rest of the first telescopic tube 1 is fixed to the main door panel, while the telescopic end of the third telescopic tube 3 or the mounting plate 6 is fixed to the extension door panel.

[0053] Since the movable partition door in this embodiment includes the telescopic bracket 100 as described in the above embodiment, it can also achieve the technical effect achieved by the telescopic bracket 100 as described in the above embodiment, which will not be elaborated here.

[0054] It should be noted that the various embodiments described above with reference to the accompanying drawings are merely illustrative of the present invention and not intended to limit its scope. Those skilled in the art should understand that any modifications or equivalent substitutions made to the present invention without departing from its spirit and scope should be covered within the scope of the present invention. Furthermore, unless the context otherwise requires, singular terms include plural forms, and vice versa. Additionally, unless specifically stated otherwise, all or part of any embodiment may be used in conjunction with all or part of any other embodiment.

Claims

1. A telescopic support, characterized in that, The telescopic support comprises: a first telescopic tube; a second telescopic tube inserted into the first telescopic tube and spaced apart from the first telescopic tube; a third telescopic tube inserted into the second telescopic tube and spaced apart from the second telescopic tube; and rollers arranged in plurality and spaced apart, each of the rollers is arranged through the second telescopic tube and rotatably connected with the second telescopic tube, and each of the rollers is clamped between the first telescopic tube and the third telescopic tube, the rollers are respectively in abutment with the inner side surface of the first telescopic tube and the outer side surface of the third telescopic tube, so that the second telescopic tube is slidably connected with the first telescopic tube, and the third telescopic tube is slidably connected with the second telescopic tube.

2. The telescoping support of claim 1, wherein, The first telescopic tube, the second telescopic tube and the third telescopic tube are all in rectangular columnar structure; the roller comprises a rotating shaft and a rolling part sleeved on the rotating shaft and rotatably connected with the rotating shaft, both ends of the rotating shaft are respectively fixed on opposite sides of the second telescopic tube along the thickness direction, and the rolling part is arranged through the second telescopic tube and is in abutment with the inner side surface of the first telescopic tube and the outer side surface of the third telescopic tube respectively.

3. The telescoping support of claim 2, wherein, The roller further comprises two ring-shaped guide parts protruding and extending outwardly along the radial direction of the rolling part from both ends of the rolling part; the inner side surface of the first telescopic tube is provided with two first guide grooves corresponding to the positions of the two guide parts, the first guide grooves extend along the sliding direction of the first telescopic tube, and the two guide parts are respectively arranged through the second telescopic tube and in abutment with the two first guide grooves; the outer side surface of the third telescopic tube is provided with two second guide grooves corresponding to the positions of the two guide parts, the second guide grooves extend along the sliding direction of the third telescopic tube, and the two guide parts are respectively in abutment with the two second guide grooves.

4. The telescoping support of claim 3, wherein, The roller further comprises a connecting part in ring shape connecting the outer periphery of the rolling part and the guide part, and the outer surface of the connecting part is in inclined surface.

5. The telescoping support of claim 4, wherein, The second telescopic tube is provided with a through hole corresponding to the position of the roller; the telescopic support further comprises a fixing plate buckled on the through hole, the fixing plate is provided with an exposed hole arranged through the fixing plate and matched with the rolling part, the guide part and the connecting part; the rolling part, the guide part and the connecting part are respectively arranged through the exposed hole and in abutment with the inner side surface of the first telescopic tube.

6. A telescopic prop according to any one of claims 2 to 5, wherein The plurality of rollers are respectively fixed on the upper and lower sides of the second telescopic tube and are spaced apart along the sliding direction of the second telescopic tube.

7. The telescoping support of claim 3, wherein, The inner side surfaces of the opposite sides of the first telescopic tube along the thickness direction are respectively provided with two first sliding grooves recessed inwardly and spaced apart, and the two first sliding grooves are spaced apart from the two first guide grooves respectively; the outer side surfaces of the opposite sides of the second telescopic tube along the thickness direction are respectively provided with two first guide rails protruded outwardly and spaced apart, and the two first guide rails are respectively inserted into the two first sliding grooves and slidably connect the second telescopic tube with the first telescopic tube.

8. The telescoping support of claim 7, wherein, The second telescopic pipe is provided with two second sliding grooves which are concave inward and spaced apart on the inner side of the opposite sides along the thickness direction of the second telescopic pipe, and the two second sliding grooves are spaced apart from the two guide portions respectively; the third telescopic pipe is provided with two second guide rails which are convex outward and spaced apart on the outer side of the opposite sides along the thickness direction of the third telescopic pipe, and the two second guide rails are inserted into the two second sliding grooves respectively, and the third telescopic pipe and the second telescopic pipe are formed into sliding connection.

9. The telescoping support of claim 8, wherein, The telescopic support further comprises a mounting plate which is fixed to one end of the third telescopic pipe, and the edge of the mounting plate is provided with a plurality of mounting holes which are spaced apart from each other and penetrate through the mounting plate.

10. A mobile partition door, characterized by The mobile partition door comprises a hollow main door plate, an expansion door plate which is accommodated in the main door plate and formed into sliding connection with the main door plate, and the telescopic support according to any one of claims 1 to 9 which is installed in the main door plate, and the third telescopic pipe is fixed to one side of the expansion door plate which is close to the telescopic support.

Images