CN217999305U - Limiting structure and sliding door - Google Patents

Abstract

The utility model discloses a limit structure and sliding door, this limit structure includes: a limiting piece which rotates around an axis vertical to the first direction relative to the first object and is provided with a first abutting part and a second abutting part which are suitable for abutting against the first wall and the second wall simultaneously and respectively; the adjusting piece adjusts the position of the first object relative to the second object along a direction perpendicular to the first direction and the rotation axis of the limiting piece, and is suitable for driving the limiting piece to rotate relative to the first object so as to enable the first abutting part and the second abutting part to abut against the first wall and the second wall respectively; the positioning piece is suitable for fixing the adjusting piece relative to the first object after the adjusting piece is adjusted in place; the sliding door adopts the limiting structure to avoid the door body from shaking.

Description

Limiting structure and sliding door

Technical Field

The utility model relates to a sliding door technical field, concretely relates to limit structure and sliding door.

Background

The existing sliding door generally comprises a door body, a door frame and a pulley block, wherein the door frame is provided with a track, and the pulley block is fixedly connected with the door body and can slide on a sliding rail. However, the sliding door requires a certain clearance between the pulley of the pulley block and the rail when sliding, so the sliding door will sway in the front-back direction perpendicular to the sliding direction, resulting in poor sliding effect and loud noise.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the above-mentioned defect or the problem that exist among the background art, provide a limit structure and sliding door, this limit structure can avoid the sliding door to appear rocking when using on the sliding door.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a spacing structure is used for spacing a first object relative to a second object along a first direction, the second object is provided with a first wall and a second wall which are opposite, the first object is positioned between the first wall and the second wall, and the first direction is perpendicular to the first wall and the second wall; the limit structure comprises: a limiting member which rotates around an axis perpendicular to the first direction relative to the first object and is provided with a first abutting part and a second abutting part which are suitable for abutting against the first wall and the second wall simultaneously and respectively; the adjusting piece is used for adjusting the position of the first object relative to the second object along a second direction perpendicular to the first direction and the rotation axis of the limiting piece, and is suitable for driving the limiting piece to rotate relative to the first object so as to enable the first abutting part and the second abutting part to abut against the first wall and the second wall respectively; and the positioning piece is suitable for fixing the adjusting piece relative to the first object after the adjusting piece is adjusted to the position so as to position the limiting piece.

In the technical scheme, the regulating part synchronously drives the limiting part to rotate relative to the first object in the process of moving along the second direction, the first abutting part and the second abutting part on the regulating part rotate along with the regulating part in the rotating process of the limiting part, and finally reach the position where the first wall and the second wall of the second object abut against each other, because both ends of the limiting part abut against the second object, the limiting part is limited by the second object in the first direction, and because the limiting part and the first object have a rotating fit relation, the first object can be limited by the second object along with the limiting part, so that the first object cannot move relative to the second object in the first direction; in addition, the positioning part is arranged, and the positioning part can enable the adjusting part to stop moving and stop at a stopping position after being adjusted in place, so that the situation that the limiting part is separated from the second object to be abutted due to the movement of the adjusting part is avoided.

Furthermore, one of the adjusting member and the limiting member is provided with a sliding groove, the extending direction of the sliding groove is perpendicular to the rotation axis of the limiting member and inclines relative to the second direction, and the other of the adjusting member and the limiting member is provided with a protrusion in sliding fit with the sliding groove.

In this technical scheme, form sliding fit between spout and the arch, because spout extending direction has certain inclination again, consequently at the in-process that the regulating part moved along the straight line, thereby the locating part can be promoted and rotate relative first object, and then makes first butt portion and second butt portion can butt respectively in first wall and second wall.

Furthermore, the limiting piece comprises a limiting body and two rollers; the limiting body rotates relative to the first object; the two rollers are rotatably arranged on the limiting body in a manner of being parallel to the rotating axis of the limiting body, and the circumferential surfaces of the two rollers respectively form the first abutting part and the second abutting part.

In this technical scheme, the locating part includes spacing body and two gyro wheels, and when the relative second object of locating part removed along the second direction, the gyro wheel can play the effect that reduces friction power, can not influence the butt cooperation relation between locating part and the second object again simultaneously.

Further, the device also comprises a mounting seat; the mounting seat is suitable for being fixedly connected to the first object; the limiting piece is rotatably mounted on the mounting base; the adjusting piece is arranged on the mounting seat in a sliding manner along a second direction; the positioning piece and the mounting seat are in axial limiting rotation fit along a second direction and are in threaded connection with the adjusting piece.

In the technical scheme, the mounting seat is arranged so as to conveniently mount the limiting part, the adjusting part and the positioning part on the first object.

Further, the device also comprises a rotating shaft lever; the rotating shaft lever is rotatably arranged on the mounting seat and sequentially penetrates through the adjusting piece and the limiting piece; the adjusting piece is provided with a moving groove extending along a second direction; the moving groove is slidably engaged with the rotating shaft to define a moving direction of the adjusting member.

In this technical scheme, through setting up the removal groove with the sliding fit of rotating shaft pole, can inject the moving direction of regulating part.

Furthermore, the mounting base is provided with a through groove which is axially communicated along the rotation axis of the limiting piece; the adjusting piece is provided with a screwing part penetrating through the through groove; the positioning piece is axially and rotatably arranged on the mounting seat in a limiting manner in the second direction and is in threaded connection with the threaded part.

In the technical scheme, the mounting seat is provided with a through groove, the adjusting piece is provided with a sliding connection part, the sliding connection part penetrates through the through groove to enable the adjusting piece to slide in the second direction without deviation, and meanwhile, the positioning piece is in threaded connection with the sliding connection part, so that the adjusting piece can be driven to slide through the positioning piece, and the adjusting piece can be fixed relative to the mounting seat through the positioning piece.

Further, the fixing piece is further included; the mounting seat is provided with a mounting hole for mounting the positioning piece; the fixing piece is suitable for being inserted into the assembly hole along the rotating axial direction of the limiting piece, so that the positioning piece and the mounting seat are axially limited and rotatably connected in the second direction.

In this technical scheme, set up the stationary blade, after the setting element inserts the pilot hole on the mount pad, the stationary blade can prevent with the pilot hole cooperation that the setting element breaks away from the mount pad to can make the setting element can with mount pad normal running fit.

In addition, the utility model also provides a sliding door, which comprises a door body and a track, wherein the door body is suitable for sliding along the extending direction of the track and adopts any one of the limit structures; the first object is the door body; the second object is the rail, and the first wall and the second wall are two inner walls opposite to the rail.

In this technical scheme, the cooperation between this sliding door accessible foretell limit structure assurance door body and the track is inseparable, and the condition that relative track rocked can not appear in the door body.

Furthermore, the device also comprises a pulley block; the pulley block is fixedly connected to the bottom of the door body and is suitable for sliding fit with a track positioned at the bottom; the door body is matched with the track positioned at the top through the limiting structure.

In the technical scheme, the pulley block is arranged at the bottom of the door body, so that the door body can conveniently slide relative to the rail.

Further, the cleaning brush is also included; the cleaning brush is fixedly connected to the bottom of the door body, is close to the pulley block and is suitable for cleaning a track at the bottom.

In this technical scheme, set up clean brush, clean brush can clear up the track when the door body is gliding, avoids the winding of debris in the track at the pulley or gather and lead to pulley, orbital cooperation inefficacy in the track.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is an exploded view of an embodiment of a limiting structure according to the present invention;

fig. 2 is an exploded view of an embodiment of a limiting structure according to the present invention;

fig. 3 is an assembly view of an embodiment of a position limiting structure according to the present invention 1;

fig. 4 is an assembly view of an embodiment of a spacing structure provided by the present invention, fig. 2;

fig. 5 is a schematic partial structural view of a sliding door according to the present invention.

Description of the main reference numerals:

a mounting seat 10; a through groove 11; a screw hole 12; a first shaft hole 13; a fitting hole 13; a fitting hole 14; a connecting wall 15; a stopper 20; a limiting body 21; a rotating shaft 211; a second shaft hole 212; a projection 213; a roller 22; a rotating shaft rod 23; an adjusting member 30; a chute 31; a moving slot 32; a sliding connection part 33; a threaded hole 331; a positioning member 40; a fixing piece 41; a first object 50; a second object 60; a first wall 61; a second wall 62.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are preferred embodiments of the invention and should not be considered as excluding other embodiments. Based on the embodiment of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention.

In the claims, the specification and the drawings, unless otherwise expressly limited, the terms "first," "second," or "third," etc. are used for distinguishing between different elements and not for describing a particular sequence.

In the claims, the specification and the drawings, unless otherwise expressly limited, the terms "central," "transverse," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," "counterclockwise," and the like in terms of orientation or positional relationship are used herein with respect to the indicated orientation or positional relationship, as indicated in the drawings, and are intended for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the indicated device or element must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of the present invention.

In the claims, the description and the drawings of the present application, unless otherwise expressly limited, the term "fixedly connected" or "fixedly connected" is used, which is to be understood broadly, that is, any connection mode without displacement relation or relative rotation relation between the two, that is, including non-detachably fixed connection, integrated connection and fixed connection through other devices or elements.

In the claims, the specification and the drawings, the terms "including", "comprising" and variations thereof, if used, are intended to be inclusive and not limiting.

Example one

The first embodiment of the present disclosure provides a limiting structure, which is used to limit a first object 50 relative to a second object 60 along a first direction, wherein the second object 60 is provided with a first wall 61 and a second wall 62 which are opposite to each other, and the first object 50 is located between the first wall 61 and the second wall 62.

Referring to fig. 5, in the present embodiment, the first object 50 may be a door body, and the second object 60 may be a rail for defining a sliding direction of the door body, the rail having a groove-shaped structure with two opposite groove walls, the two groove walls forming the first wall 61 and the second wall 62.

Referring also to fig. 3, fig. 3 shows specific orientations of the first direction, the second direction, and the third direction in the present embodiment, and mapping fig. 3 to fig. 5, a direction perpendicular to the first wall 61 and the second wall 62 is the first direction, i.e., the left-right direction in fig. 5, a direction coinciding with the track extending direction is the second direction, i.e., the front-rear direction in fig. 5, and a direction perpendicular to both the first direction and the second direction is the third direction, i.e., the up-down direction in fig. 5. In practical application, the first direction and the second direction are horizontal directions, and the third direction is a vertical direction.

Referring to fig. 1 to 4, the limiting structure provided in this embodiment mainly includes a mounting base 10, a limiting member 20, an adjusting member 30, a positioning member 40, a fixing plate 41 and a rotating shaft 23.

The limiting member 20 rotates around an axis perpendicular to the first direction relative to the first object 50, and has a first abutting portion and a second abutting portion adapted to abut against the first wall 61 and the second wall 62 simultaneously and respectively; the adjusting member 30 adjusts the position of the first object 50 along a second direction perpendicular to the first direction and the rotation axis of the limiting member 20, and one of the adjusting member and the limiting member 20 is provided with a sliding slot 31, the extending direction of the sliding slot 31 is perpendicular to the rotation axis of the limiting member 20 and is inclined relative to the second direction, and the other one of the adjusting member and the limiting member is provided with a protrusion 213 in sliding fit with the sliding slot 31; the positioning member 40 is adapted to fix the adjustment member 30 relative to the first object 50 after the adjustment member 30 is adjusted in position.

The mounting base 10 is used for mounting the limiting member 20, the adjusting member 30, the positioning member 40 and the fixing member 41, and the mounting base 10 is adapted to be fixedly connected to the first object 50. Referring to fig. 1 and 2 in particular, the mounting base 10 is a substantially elongated member extending along the second direction, and has a raised middle portion and two lowered ends, and screw holes 12 are formed at two ends of the elongated member, and the two screw holes 12 allow the mounting base 10 and the first object 50 to be connected into a whole through bolts. A first shaft hole 13 is formed in the middle of the mounting seat 10, and the rotating shaft 23 can be mounted in the first shaft hole 13; a through groove 11 is further formed in one side of the first shaft hole 13, and the through groove 11 penetrates through the middle plate surface of the mounting seat 10 and extends along the second direction; between the raised and lowered positions of the mounting base 10, there is a connecting wall 15 extending substantially in the third direction, in which connecting wall 15 there is provided a mounting opening 14, which mounting opening 14 extends through the connecting wall 15 in the second direction and can be brought into a plug-in fit with the fixing plate 41, and in the lower edge of the mounting opening 14 there is provided a recessed groove-like structure through which the positioning element 40 can be passed.

The limiting member 20 includes a limiting body 21 and two rollers 22, the limiting body 21 rotates relative to the first object 50, the two rollers 22 are rotatably mounted on the limiting body 21 parallel to the rotation axis of the limiting body 21, and the circumferential surfaces of the two rollers form a first abutting portion and a second abutting portion respectively. Referring to fig. 1 to 4 in particular, a surface of the limiting body 21 facing the positive direction of the third direction in fig. 3 is an upper surface, a surface facing the negative direction of the third direction is a lower surface, a second shaft hole 212 penetrating through the upper and lower surfaces is formed in the middle of the limiting body 21, and the rotating shaft 23 can pass through the second shaft hole 212, so that the limiting body 21 can be rotatably mounted on the mounting base 10, and since the mounting base 10 is fixed on the first object 50, the limiting member 20 can rotate relative to the first object 50; two rotating shafts 211 extending along the third direction are arranged at two ends of the upper surface of the limiting body 21, and the two rotating shafts 211 are respectively used for mounting two rollers 22; two opposite protrusions 213 are provided on the lower surface of the stopper body 21.

Referring to fig. 5, when the limiting member 20 rotates to a certain position, the circumferential surfaces of the two rollers 22, which are the first abutting portion and the second abutting portion of the limiting member 20, abut against the first wall 61 and the second wall 62, so as to limit the movement of the first object 50 in the first direction.

Referring to fig. 1 to 4, the adjusting member 30 includes a body portion extending in the second direction and a slip portion 33 connected to an end of the body portion thereof and extending in the third direction. A slide groove 31 and a moving groove 32 are provided on the main body portion of the adjusting member 30; the two chutes 31 are provided in number, distributed along the second direction, and the extending directions of the two chutes 31 are both inclined to the second direction, but the inclined directions of the two chutes 31 are opposite to the second direction; the two sliding slots 31 can be respectively matched with the two protrusions 213 on the limiting body 21 in a sliding manner, and because the sliding slots 31 are arranged obliquely, when the adjusting member 30 moves along the second direction, the slot walls of the sliding slots 31 can be matched with the protrusions 213 to drive the limiting member 20 to rotate; it should be understood that the specific inclination direction of the sliding slots 31 and the inclination relationship between the two sliding slots 31 can be adjusted by those skilled in the art according to actual needs, as long as it is ensured that the adjusting member 30 drives the limiting body 21 to rotate. The moving slot 32 is disposed between the two sliding slots 31, and the extending direction of the moving slot 32 is the same as the second direction, and the rotating shaft 23 may sequentially penetrate the first shaft hole 13, the moving slot 32 and the second shaft hole 212, and be adapted to the width of the moving slot 32, thereby defining the moving direction of the adjusting member 30.

The sliding portion 33 of the adjusting member 30 can pass through the through slot 11 of the mounting seat 10 and reach a position below the mounting seat 10, and a threaded hole 331 is formed therein and penetrates in the second direction.

The positioning member 40 is rotatably mounted to the mounting base 10 in a second direction with an axial limitation, and is threadedly coupled to the threaded portion. Specifically, referring to fig. 1 to 4, the positioning element 40 is a screw rod in this embodiment, and can be placed in a groove-shaped structure of the assembly hole 14 on the installation base 10, and can be axially and limitedly installed on the installation base 10 through the fixing plate 41, the fixing plate 41 is also provided with a groove-shaped structure adapted to the positioning element 40, the groove-shaped structures on the fixing plate 41 and the assembly hole 14 can enable the positioning element 40 to pass through the fixing plate 41 and the assembly hole 14, and simultaneously can limit the positioning element 40 in the axial direction when the fixing plate 41 is inserted into the assembly hole 14 in the third direction, but at the same time, the positioning element 40 can rotate relative to the installation base 10. The arrangement and installation of the fixing plate 41 are conventional in the art, and the matching relationship between the fixing plate and the mounting hole 14 and the positioning member 40 will not be described in detail herein. The axial limitation means that two parts connected to each other do not move relatively in the axial direction in the relative rotational direction, and the axial limitation means that the two parts can rotate relatively based on the axial limitation.

In addition, the positioning element 40 may be further screwed into the threaded hole 331, so as to convert the rotation thereof into the sliding of the adjusting element 30 along the second direction, and when the rotation of the adjusting element is stopped, the position of the adjusting element 30 is also fixed relative to the mounting base 10, so as to prevent the limiting element 20 from rotating relative to the mounting base 10, and the limiting element 20 may be kept in a state of abutting against the first wall 61 and the second wall 62.

When the installation, install gyro wheel 22 to spacing body 21 earlier, later install regulating part 30 to mount pad 10, run through first shaft hole 13 with rotation axostylus axostyle 23 again, it is spacing through jump ring etc. in its axial behind shifting chute 32 and the second shaft hole 212, later pass locating piece 40 pilot hole 14 and with regulating part 30 spiro union, insert stationary blade 41 to pilot hole 14 again in order to prevent that locating piece 40 from deviating from can accomplish the assembly of this limit structure itself, later with above-mentioned assembled subassembly again to first object 50 on can.

When the first object 50 is placed in place, the positioning element 40 is rotated, the adjusting element 30 moves in the second direction, and the limiting element 20 starts to rotate until the first abutting portion and the second abutting portion abut against the first wall 61 and the second wall 62 respectively and simultaneously, so that the first object 50 is placed between the first abutting portion and the second wall 61 of the second object 60, and the distance between the first abutting portion and the second abutting portion is smaller than the distance between the first wall 61 and the second wall 62.

The utility model provides a limit structure, regulating part 30 can be through its cooperation with between the locating part 20, when it carries out linear motion, drive locating part 20 rotates, locating part 20 rotates in-process, first butt portion and second butt portion on it can rotate along with it, and finally reach the position with mutual butt joint of first wall 61 of second object 60, second wall 62, because both ends of locating part 20 all butt to second object 60, therefore locating part 20 is spacing by second object 60 in the first direction, and because locating part 20 has the rotation fit relation with first object 50, therefore first object 50 can be spacing by second object 60 along with locating part 20, therefore first object 50 can not appear the condition that moves in the first direction relative to second object 60; in addition, a positioning member 40 is further provided, and the positioning member 40 can stop the movement of the adjusting member 30 after the adjusting member 30 is adjusted to the proper position and stop at the stopped position, so that the situation that the limiting member 20 is separated from the second object 60 due to the movement of the adjusting member 30 is avoided.

Example two

The utility model discloses second of the specification embodiment still provides a sliding door, and this sliding door is including the door body and track, and wherein the door body is suitable for along the slip of track extending direction, and this sliding door has adopted the limit structure in above-mentioned first embodiment in order to prevent that the relative track of the door body from rocking on the perpendicular to door body slip direction.

Specifically, referring to fig. 5, in the first embodiment, the first object 50 is a door body in the present embodiment, the second object 60 is a track, and the first wall 61 and the second wall 62 are two inner walls opposite to each other on the track.

In addition, the sliding door further comprises a pulley block, the pulley block is fixedly connected to the bottom of the door body and is suitable for being in sliding fit with the track positioned at the bottom, and the door body is suitable for being matched with the track positioned at the top through a limiting structure. Particularly, the track is including being located the lower track of a body below and the last track that is located a body top, and the assembly pulley is installed in a body bottom in this embodiment to with lower track cooperation, the assembly pulley not only plays the gliding effect of the door body of being convenient for, still plays the supporting role. The top of the door body forms butt cooperation with two inner walls of the upper track through the limiting structure in the first embodiment, so that the door body can be prevented from shaking in the vertical direction of the sliding direction of the door body.

Further, the sliding door further comprises a cleaning brush; the cleaning brush is fixedly connected to the bottom of the door body, is arranged close to the pulley block and is suitable for cleaning a track at the bottom. Specifically, the cleaning brush can be directly installed on the door body, also can be installed on the base of the pulley block, and can be used for cleaning the inside of the lower rail in the sliding process of the door body, so that the situation that sundries in the rail are wound on the pulley or gathered in the rail to cause the pulley and the rail to be matched and lose efficacy is avoided.

The utility model provides a pair of sliding door owing to adopted foretell limit structure, consequently its rocking of perpendicular to its slip direction can not appear in it.

In addition, still be provided with two-way buffer on this sliding door, this two-way buffer is installed in the last track of door body top, and its both ends in last track extending direction form two effect portions, the spacing cooperation along last track extending direction is formed with the mount pad on the last track in one of these two effect portions, the spacing cooperation along last track extending direction of spacing block formation that another effect portion set up with door body top, through this kind of cooperation, this two-way buffer can all provide certain buffering in two moving directions at the door body slip in-process. The mounting base arranged on the upper track is also suitable for adjusting the height position of the mounting base so as to be matched with two-way buffers with different types and sizes, the height position of the mounting base can be adjusted by screwing a bolt to the mounting base and the upper track, and the height position of the mounting base can be adjusted when the bolt is adjusted.

The description of the above specification and examples is intended to illustrate the scope of the invention, but should not be construed as limiting the scope of the invention. Modifications, equivalents and other improvements which may be made to the embodiments of the invention or to some of the technical features thereof by a person of ordinary skill in the art through logical analysis, reasoning or limited experimentation in light of the above teachings of the invention or the above embodiments are intended to be included within the scope of the invention.

Claims (10)

1. A spacing structure for spacing a first object (50) relative to a second object (60) in a first direction, the second object (60) being provided with first and second opposing walls (61, 62), the first object (50) being located between the first and second walls (61, 62), the first direction being perpendicular to the first and second walls (61, 62); characterized by, limit structure includes:

a stopper (20) which rotates relative to the first object (50) about an axis perpendicular to the first direction, and which has a first abutting portion and a second abutting portion adapted to abut against the first wall (61) and the second wall (62) simultaneously and respectively;

an adjusting member (30) which adjusts a position relative to the first object (50) along a second direction perpendicular to the first direction and the rotation axis of the limiting member (20), and is adapted to drive the limiting member (20) to rotate relative to the first object (50) so that the first abutting portion and the second abutting portion abut against the first wall (61) and the second wall (62), respectively; and

a positioning member (40) adapted to fix the adjusting member (30) relative to the first object (50) after the adjusting member (30) is adjusted in position to position the limiting member (20).

2. A limiting structure according to claim 1, wherein one of the adjusting member (30) and the limiting member (20) is provided with a sliding slot (31), the sliding slot (31) extends perpendicular to the rotation axis of the limiting member (20) and is inclined relative to the second direction, and the other of the adjusting member and the limiting member is provided with a protrusion (213) slidably engaged with the sliding slot (31).

3. A spacing structure according to claim 2, wherein said spacing member (20) comprises a spacing body (21) and two rollers (22); the limiting body (21) rotates relative to the first object (50); the two rollers (22) are rotatably arranged on the limiting body (21) in a manner of being parallel to the rotating axis of the limiting body (21), and the circumferential surfaces of the two rollers respectively form the first abutting part and the second abutting part.

4. A spacing structure as claimed in claim 3, further comprising a mounting seat (10); the mounting seat (10) is suitable for being fixedly connected to the first object (50); the limiting piece (20) is rotatably mounted on the mounting base (10); the adjusting piece (30) is arranged on the mounting seat (10) in a sliding manner along a second direction; the positioning piece (40) is in axial limit rotation fit with the mounting base (10) along the second direction and is in threaded connection with the adjusting piece (30).

5. A spacing structure as claimed in claim 4, further comprising a rotating shaft (23); the rotating shaft rod (23) is rotatably arranged on the mounting seat (10) and sequentially penetrates through the adjusting piece (30) and the limiting piece (20); the adjusting piece (30) is provided with a moving groove (32) extending along a second direction; the moving groove (32) is in sliding fit with the rotating shaft (23) to define the moving direction of the adjusting piece (30).

6. A spacing structure according to claim 5, characterized in that said mounting seat (10) is provided with a through slot (11) axially penetrating in the direction of rotation of said spacing member (20); the adjusting piece (30) is provided with a screwing part penetrating through the through groove (11); the positioning piece (40) is axially and rotatably arranged on the mounting base (10) in a limiting mode in the second direction and is in threaded connection with the threaded portion.

7. A spacing structure as claimed in claim 6, further comprising a fixing plate (41); the mounting seat (10) is provided with a mounting hole (14) for mounting the positioning piece (40); the fixing piece (41) is suitable for being inserted into the assembly hole (14) along the rotating axial direction of the limiting piece (20) so that the positioning piece (40) is connected with the mounting base (10) in an axial limiting manner in the second direction in a rotating mode.

8. A sliding door comprising a door body and a track, wherein the door body is suitable for sliding along the extension direction of the track, and is characterized in that a limiting structure according to any one of claims 1-7 is adopted;

wherein the first object (50) is the door body; the second object (60) is the rail, and the first wall (61) and the second wall (62) are two opposite inner walls of the rail.

9. A sliding door as claimed in claim 8 further comprising a pulley block; the pulley block is fixedly connected to the bottom of the door body and is suitable for sliding fit with a track positioned at the bottom; the door body is matched with the track at the top through the limiting structure.

10. The sliding door of claim 9 further comprising a cleaning brush; the cleaning brush is fixedly connected to the bottom of the door body, is close to the pulley block and is suitable for cleaning a track at the bottom.

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