CN216476850U - Dustproof sliding support - Google Patents

Abstract

The utility model relates to the technical field of hardware, and discloses a dustproof sliding support which comprises a sliding rail, a sliding block, a friction piece and a fastening assembly. The slider cladding is outside the slide rail, therefore the width of slider does not receive the restriction of slide rail width size to guarantee that the slider has sufficient bearing capacity, improve the overall stability of sliding support structure. Set up the friction member on the sliding plate, can increase the frictional force between slider and the slide rail on the one hand, guarantee gliding stability, on the other hand, when the slider slided on the slide rail, the friction member can prevent slider itself wearing and tearing deformation, prolongs the life of sliding support structure.

Description

Dustproof sliding support

Technical Field

The utility model relates to the technical field of hardware, in particular to a dustproof sliding support.

Background

The sliding support is a connecting rod type movable connecting device used for connecting a window sash and a window frame (or a door leaf and a door frame) so as to open and close the window. The sliding support generally comprises a sliding rail, a sliding block, a supporting arm, a long cantilever, a short cantilever and an inclined cantilever, wherein the sliding block is arranged on the sliding rail, the long cantilever is hinged between the sliding rail and the supporting arm, the short cantilever is hinged between the sliding block and the supporting arm, and the inclined cantilever is hinged between the sliding block and the long cantilever.

The sliding rails are usually fixed in the grooves of the profiles, and in order not to interfere with the use of the profiles, the dimensions of the grooves on the profiles are becoming smaller and smaller, and correspondingly the width of the sliding rails is also required to be reduced adaptively. The size of the sliding block is correspondingly reduced after the width of the sliding rail is reduced, the bearing capacity of the sliding block is inevitably reduced due to the reduction of the size of the sliding block, the wind resistance of the sliding support structure is reduced, and the window sash is fixed and unstable. In addition, in the existing sliding support structure, the sliding block is usually located in the sliding groove of the sliding rail and is in sliding fit with the sliding groove, so that a fixing screw cannot be installed in the sliding range of the sliding block on the sliding rail, and the problems that the sliding rail is installed insecurely and the like easily occur.

SUMMERY OF THE UTILITY MODEL

Based on the above problems, an object of the present invention is to provide a dustproof slide support, which has a good dustproof effect, and the slider is not affected by the size of the profile, so that the strength of the whole structure of the slide support can be ensured, and the bearing capacity and stability of the slide support can be improved.

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

a dust slide including:

the sliding rail comprises a sliding rail body, a first bending part, a second bending part and a dustproof plate, wherein the first bending part and the second bending part are arranged on two opposite side edges of the sliding rail body, one side edge of the dustproof plate is connected with the first bending part, and the other side edge of the dustproof plate is connected with the second bending part;

the sliding block comprises a sliding plate, a first sliding part and a second sliding part, the first sliding part and the second sliding part are arranged on two opposite side edges of the sliding plate, a first sliding groove is limited by the first sliding part, a second sliding groove is limited by the second sliding part, the first bending part is positioned in the first sliding groove and is in sliding fit with the first sliding groove, and the second bending part is positioned in the second sliding groove and is in sliding fit with the second sliding groove.

As a preferable scheme of the dustproof sliding support, the sliding rail body comprises a fixed plate, a first limiting plate and a second limiting plate are respectively arranged on two opposite side edges of the fixed plate, an installation groove is formed in the sectional material, the fixed plate is located in the installation groove, and the first limiting plate and the second limiting plate are respectively abutted against two opposite side walls of the installation groove.

As a preferable aspect of the dustproof slide brace according to the present invention, the dustproof slide brace further includes a friction member including a friction plate interposed between the sliding plate and the dustproof plate and located between the first bent portion and the second bent portion.

As a preferable scheme of the dustproof sliding support, a first strip-shaped hole is formed in the sliding plate, and a hinge connecting pin of the sliding support penetrates through the first strip-shaped hole and is adjustable in position in the first strip-shaped hole.

As a preferable aspect of the dustproof slide support of the present invention, the friction member is provided with a second strip-shaped hole, the second strip-shaped hole corresponds to the first strip-shaped hole, one end of the hinge connecting pin is provided with a stopper portion, an upper end surface of the stopper portion is attached to one side of the sliding plate facing the friction member, and a lower end of the stopper portion is located in the second strip-shaped hole.

As a preferable scheme of the dustproof sliding support, the dustproof sliding support further comprises a friction piece, the friction piece comprises a friction plate, a first bending portion and a second bending portion are arranged on two opposite sides of the friction plate, the first bending portion is attached to the inner wall of the first sliding groove and is in sliding fit with the first bending portion, and the second bending portion is attached to the inner wall of the second sliding groove and is in sliding fit with the second bending portion.

As a preferable scheme of the dustproof sliding support, the first bending portion defines a first clamping groove, the second bending portion defines a second clamping groove, one side edge of the dustproof plate is clamped in the first clamping groove, and the other side edge of the dustproof plate is clamped in the second clamping groove.

As the preferable scheme of the dustproof sliding support, the dustproof sliding support further comprises a fastening assembly, wherein the sliding rail body is fixed on the section bar through the fastening assembly;

the fastening component comprises a locking piece, a plurality of mounting holes are formed in the slide rail body, the locking piece penetrates through the mounting holes and is connected with the sectional material, a plurality of avoiding holes and a plurality of avoiding holes are formed in the dustproof plate in a one-to-one correspondence mode, and the installing holes correspond to the avoiding holes in a one-to-one correspondence mode.

The dustproof sliding support further comprises a fixing piece, wherein the fixing piece is located at the end of the sliding rail and covers the sliding rail.

As a preferable scheme of the dustproof sliding support, the sliding plate is provided with an adjusting screw, and the adjusting screw penetrates through the sliding plate and is tightly pressed against the friction piece.

The utility model has the beneficial effects that:

according to the dustproof sliding support provided by the utility model, the dustproof plate is arranged between the first bending part and the second bending part, so that a large amount of dust can be prevented from being accumulated in the sliding rail, the dust is prevented from entering a gap between the sliding rail and the friction part when the sliding block slides on the sliding rail, the friction resistance is reduced, the sliding block can be ensured to smoothly slide on the sliding rail, meanwhile, the abrasion between the sliding block and the sliding rail can be reduced, and the service life of the sliding support structure is prolonged. The first flexion of slide rail and the first spout sliding fit of slider, the second flexion of slide rail and the second spout sliding fit of slider, the slider cladding is outside the slide rail promptly, therefore the width of slider can not receive the restriction of slide rail width size to guarantee that the slider has sufficient bearing capacity, improve the overall stability of sliding support structure, prevent that the sliding support structure from deforming damage. Set up the friction member on the sliding plate, can increase the frictional force between slider and the slide rail on the one hand, guarantee gliding stability, on the other hand, when the slider slided on the slide rail, the friction member can prevent slider itself wearing and tearing deformation to the life of extension sliding support structure.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.

FIG. 1 is a first view of a dust slide according to an embodiment of the present invention;

FIG. 2 is a second view of the dust slide of the present invention (hidden hinge structure);

FIG. 3 is a cross-sectional view of a dust slide (hidden hinge structure) provided by an embodiment of the present invention;

FIG. 4 is an exploded view of a dust slide (hidden hinge structure) provided by an embodiment of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 4 at A;

fig. 6 is a partially enlarged view at B in fig. 4.

In the figure:

1-a slide rail; 2-a slide block; 3-a friction member; 4-a fixing piece; 5-adjusting screws;

11-a slide rail body; 12-a first bend; 13-a second bend; 14-dust guard; 15-accommodating the tank;

111-a fixed plate; 112-a first limiting plate; 113-a second limiting plate; 114-mounting holes;

121-a first card slot; 131-a second card slot;

141-avoiding holes;

21-a sliding plate; 22-a first sliding part; 23-a second sliding part;

211-a first bar aperture; 212-a threaded hole; 221-a first chute; 231-a second chute;

31-a second strip aperture;

100-section bar; 101-mounting grooves;

200-hinge structure; 201-a hinge connection pin; 2011-stop.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 4, the present embodiment provides a dustproof sliding support, which may be applied to the installation of a window sash or a door leaf, and includes a sliding rail 1, a sliding block 2, a friction member 3, and a fastening assembly.

The sliding rail 1 comprises a sliding rail body 11, a first bending portion 12, a second bending portion 13 and a dust guard 14, wherein the sliding rail body 11 is fixed on the section bar 100 through a fastening assembly. The first bending portion 12 and the second bending portion 13 are disposed on two opposite sides of the sliding rail body 11, one side of the dust-proof plate 14 is connected to the first bending portion 12, and the other side is connected to the second bending portion 13, so that the dust-proof plate 14 covers the sliding rail body 11, and a good dust-proof effect is achieved. The slider 2 includes a sliding plate 21, a first sliding portion 22 and a second sliding portion 23, the first sliding portion 22 and the second sliding portion 23 are respectively disposed on two opposite sides of the sliding plate 21, the first sliding portion 22 defines a first sliding slot 221, the second sliding portion 23 defines a second sliding slot 231, the first bending portion 12 is disposed in the first sliding slot 221 and is in sliding fit with the first sliding slot 221, and the second bending portion 13 is disposed in the second sliding slot 231 and is in sliding fit with the second sliding slot 231. The friction piece 3 is attached to one side of the sliding plate 21 facing the dust-proof plate 14 and can be in sliding fit with the sliding rail 1.

For convenience of processing, the sliding plate 21 is preferably integrally bent with the first sliding portion 22 and the second sliding portion 23. In other embodiments, the sliding plate 21 and the first sliding portion 22 and the second sliding portion 23 may be formed by a separate process.

In this embodiment, by arranging the dust guard 14 between the first bending portion 12 and the second bending portion 13, a large amount of dust can be prevented from being accumulated in the slide rail 1, so that the dust can be prevented from entering a gap between the slide rail 1 and the friction member 3 when the slider 2 slides on the slide rail 1, the friction resistance is reduced, the slider 2 can be ensured to smoothly slide on the slide rail 1, meanwhile, the abrasion between the slider 2 and the slide rail 1 can be reduced, and the service life of the sliding support structure is prolonged. The first bending portion 12 of the slide rail 1 is in sliding fit with the first sliding groove 221 of the slide block 2, and the second bending portion 13 of the slide rail 1 is in sliding fit with the second sliding groove 231 of the slide block 2, i.e., the slide block 2 is wrapped outside the slide rail 1, so that the width of the slide block 2 is not limited by the width dimension of the slide rail 1, the slide block 2 is ensured to have enough bearing capacity, the overall stability of the sliding support structure is improved, and the sliding support structure is prevented from being deformed and damaged. Set up friction member 3 on sliding plate 21, on the one hand can increase the frictional force between slider 2 and the slide rail 1, guarantee gliding stability, and on the other hand, when slider 2 slided on slide rail 1, friction member 3 can prevent slider 2 itself wearing and tearing deformation to the life of extension sliding support structure.

As shown in fig. 3 and fig. 6, optionally, the slide rail body 11 includes a fixing plate 111, two opposite sides of the fixing plate 111 are respectively provided with a first limiting plate 112 and a second limiting plate 113, the first bending portion 12 is connected to one end of the first limiting plate 112 away from the fixing plate 111, the second bending portion 13 is connected to one end of the second limiting plate 113 away from the fixing plate 111, and the first bending portion 12 and the second bending portion 13 extend in directions away from each other, so as to increase the contact area between the slide rail 1 and the slider 2, and enhance the sliding stability. In this embodiment, the fixing plate 111 is located in the mounting groove 101 of the profile 100, and the bottom surface of the fixing plate 111 is attached to the bottom of the mounting groove 101, and the first limiting plate 112 and the second limiting plate 113 are respectively abutted to two opposite side walls of the mounting groove 101. In the mounting groove 101 was located to slide rail body 11 card promptly, this mode of setting can increase the joint strength between slide rail 1 and the section bar 100, prevented that slide rail 1 from rocking on section bar 100, guaranteed the gliding stability of slider 2.

Preferably, the slide rail body 11 is integrally bent with the first bending portion 12 and the second bending portion 13, and the processing is more convenient.

Optionally, the fastening assembly comprises a retaining member. Referring to fig. 4 and 6, the slide rail body 11 is provided with a plurality of mounting holes 114, in this embodiment, the mounting holes 114 are arranged at intervals along the length direction of the fixing plate 111. When the sliding rail 1 is installed, the sliding rail 1 can be firmly fixed on the section bar 100 by using a plurality of locking pieces to sequentially pass through the plurality of installation holes 114 and be connected with the section bar 100. The locking part is preferably a screw, materials are conveniently obtained, and the installation is simple. Specifically, the dust-proof plate 14 is provided with a plurality of avoiding holes 141, the plurality of avoiding holes 141 correspond to the plurality of mounting holes 114 one by one, and the aperture of the avoiding hole 141 is larger than that of the mounting hole 114, so that when the slide rail 1 is fixed, a screw can be screwed through the avoiding hole 141, and the dust-proof plate 14 is prevented from hindering the fastening operation of the screw. In other embodiments, the retaining member may be a rivet or the like, and the type of retaining member is not limited herein.

Further, referring to fig. 3 and 6, the first limiting plate 112 and the second limiting plate 113 enclose the receiving groove 15 on the fixing plate 111, and the locking member is located in the receiving groove 15, so that the sliding plate 21 of the slider 2 can be far away from the top of the locking member, and the locking member can be prevented from interfering with the slider 2 when the slider 2 slides. That is to say, the locking piece can also be fixed in the gliding within range of slider 2 on slide rail 1 to guarantee the joint strength between slide rail 1 and section bar 100, prevent that slide rail 1 from rocking in the window opening and closing process.

In another embodiment, the bottom surface of the fixing plate 111 can also be attached to the top surface of the profile 100, and the width of the fixing plate 111 should be greater than the opening width of the mounting groove 101, and this design also enables the width of the sliding rail 1 to be no longer limited by the width of the mounting groove 101, so that the sliding rail 1 can have sufficient bearing capacity, and can be matched with profiles 100 of different specifications. Correspondingly, the fastening assembly may include a bolt and a positioning block, the positioning block is located in the installation groove 101 of the profile 100 and is clamped with the installation groove 101, and the bolt passes through the fixing plate 111 and then is connected with the positioning block. The two opposite sides of the mounting groove 101 are respectively provided with a first limiting part and a second limiting part, one end of the positioning block can be clamped between the first limiting part and the bottom wall of the mounting groove 101, and the other end of the positioning block can be clamped between the second limiting part and the bottom wall of the mounting groove 101. When installing slide rail 1, locate the mounting groove 101 with the locating piece card earlier, then use the bolt pass the mounting hole 114 of fixed plate 111 and with positioning block connection can, need not to drill on section bar 100, the installation is simpler, and slide rail 1 can adapt to the section bar 100 of different specifications, the commonality is better.

As shown in fig. 4, optionally, the sliding plate 21 is provided with a first strip-shaped hole 211, and the hinge connecting pin 201 of the sliding support passes through the first strip-shaped hole 211 and is adjustable in position in the first strip-shaped hole 211. Referring to fig. 3, in the embodiment, a stopping portion 2011 is disposed at one end of the hinge connecting pin 201, and an upper end surface of the stopping portion 2011 is attached to a side surface of the sliding plate 21 facing the friction member 3 and can be in sliding fit with the side surface. In the process of opening or closing the window, the hinge structure 200 rotates and drives the hinge connecting pin 201 to move in the first strip-shaped hole 211, so as to adapt to the position change between the hinge structures 200.

In this embodiment, there are three hinge connecting pins 201, one of the hinge connecting pins is disposed in the first strip-shaped hole 211, one of the end portions of the slider 2 is disposed, one of the end portions of the slide rail 1 is disposed, and the three hinge connecting pins 201 are respectively and correspondingly connected with the cantilevers of the hinge structure 200 to connect the window sash and the window frame. In other embodiments, the number of hinge connection pins 201 may be adaptively selected according to the hinge structure 200.

Optionally, referring to fig. 4, a second bar-shaped hole 31 is formed in the friction member 3, the second bar-shaped hole 31 corresponds to the first bar-shaped hole 211, and the lower end of the stopping portion 2011 of the hinge pin 201 is located in the second bar-shaped hole 31, so that when the hinge pin 201 moves in the first bar-shaped hole 211, the hinge pin 201 can be prevented from interfering with the friction member 3, and smooth opening or closing of the window is ensured.

It should be noted that, in other embodiments, the first strip-shaped hole 211 on the sliding plate 21 may also be a circular hole, and the corresponding second strip-shaped hole 31 on the friction member 3 is also designed as a circular hole, at this time, there is no relative sliding between the hinge connecting pin 201 and the sliding plate 21, and the sliding block 2 is connected with the hinge structure 200 through the hinge connecting pin 201.

As shown in fig. 4 and 6, alternatively, the first bending portion 12 defines a first slot 121, the second bending portion 13 defines a second slot 131, one side of the dust-proof plate 14 is clamped into the first slot 121, and the other side is clamped into the second slot 131. Referring to fig. 3, in the embodiment, the cross sections of the first bending portion 12 and the second bending portion 13 are both U-shaped, the first engaging groove 121 and the second engaging groove 131 are both U-shaped grooves, and two sides of the dust-proof plate 14 along the width direction are respectively covered by the first bending portion 12 and the second bending portion 13, so that the dust-proof plate 14 completely covers the accommodating groove 15 of the slide rail body 11, and dust is prevented from entering the accommodating groove 15.

As shown in fig. 3 and 4, the friction member 3 may alternatively include a friction plate interposed between the sliding plate 21 and the dust-proof plate 14 and between the first bent portion 12 and the second bent portion 13. In this embodiment, referring to fig. 1 and fig. 2, a strip-shaped groove is defined by an end of the first bending portion 12 and an end of the second bending portion 13 on the dust-proof plate 14, the friction plate is located in the strip-shaped groove, one side of the friction plate is opposite to the end of the first bending portion 12, the other side of the friction plate is opposite to the end of the second bending portion 13, and when the slider 2 slides on the slide rail 1, the friction plate slides in the strip-shaped groove along with the slider 2, so as to increase the friction force between the slider 2 and the slide rail 1, and ensure the stability of the sliding of the slider 2.

In a new embodiment, the friction member 3 may also include a friction plate, and the two opposite sides of the friction plate are provided with a first bending portion and a second bending portion, the first bending portion is attached to the inner wall of the first sliding groove 221 and slidably engaged with the first bending portion 12, and the second bending portion is attached to the inner wall of the second sliding groove 231 and slidably engaged with the second bending portion 13. At this time, the shape of the friction piece 3 is adaptively matched with the shape of the slide block 2, and the friction piece 3 is attached to the slide block 2 and covers the slide rail 1. Specifically, the friction plate is fixed on the sliding plate 21, the first bent portion is fixed in the first sliding slot 221, and the second bent portion is fixed in the second sliding slot 231, so that the friction member 3 can slide on the sliding rail 1 along with the sliding block 2. For convenient processing, the friction plate is integrally formed with the first bending part and the second bending part.

As shown in fig. 1 and fig. 2, optionally, the dustproof sliding support further includes a fixing member 4, and the fixing member 4 is located at an end of the sliding rail 1 and covers the sliding rail 1. Referring to fig. 4, in the present embodiment, the shape of the fixing element 4 is adapted to the shape of the sliding rail 1, and the cross section of the fixing element is the same as the cross section of the sliding block 2 in the present embodiment. One of the hinge connecting pins 201 is fixed on the fixing member 4 to realize the connection between the hinge structure 200 and the slide rail 1, and the fixing member 4 is coated outside the slide rail 1 to increase the connection strength between the two, thereby preventing the fixing member 4 from shaking in the process of opening and closing the window.

Alternatively, referring to fig. 4 and 5, the sliding plate 21 is provided with an adjusting screw 5, and the adjusting screw 5 passes through the sliding plate 21 and abuts against the friction member 3. Specifically, the sliding plate 21 is provided with a threaded hole 212, the adjusting screw 5 is screwed into the threaded hole 212 and abuts against the friction member 3, and when the adjusting screw 5 is screwed down, the friction member 3 can be made to abut against the dust-proof plate 14, so that the friction resistance of the sliding block 2 during sliding is increased. When the adjusting screw 5 is unscrewed upwards, the frictional resistance of the sliding block 2 during sliding can be reduced. During specific use, the tightness degree of the adjusting screw 5 can be adjusted as required, so that the sliding block 2 can smoothly slide on the sliding rail 1, and meanwhile, sufficient friction force exists between the sliding block 2 and the sliding rail 1, and the sliding stability of the sliding block 2 is further ensured.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments illustrated herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (10)

1. A dust proof slide rail, comprising:

the sliding rail (1) comprises a sliding rail body (11), a first bending part (12), a second bending part (13) and a dustproof plate (14), wherein the first bending part (12) and the second bending part (13) are respectively arranged on two opposite sides of the sliding rail body (11), one side of the dustproof plate (14) is connected with the first bending part (12), and the other side of the dustproof plate is connected with the second bending part (13);

the sliding block (2) comprises a sliding plate (21), a first sliding portion (22) and a second sliding portion (23), the first sliding portion (22) and the second sliding portion (23) are respectively arranged on two opposite side edges of the sliding plate (21), the first sliding portion (22) defines a first sliding groove (221), the second sliding portion (23) defines a second sliding groove (231), the first bending portion (12) is located in the first sliding groove (221) and is in sliding fit with the first sliding groove (221), and the second bending portion (13) is located in the second sliding groove (231) and is in sliding fit with the second sliding groove (231).

2. The dustproof sliding support according to claim 1, wherein the sliding rail body (11) comprises a fixing plate (111), two opposite side edges of the fixing plate (111) are respectively provided with a first limiting plate (112) and a second limiting plate (113), a section bar (100) is provided with a mounting groove (101), the fixing plate (111) is located in the mounting groove (101), and the first limiting plate (112) and the second limiting plate (113) are respectively abutted against two opposite side walls of the mounting groove (101).

3. The dust-proof slide support according to claim 1, further comprising a friction member (3), wherein the friction member (3) comprises a friction plate interposed between the sliding plate (21) and the dust-proof plate (14) and between the first curved portion (12) and the second curved portion (13).

4. The dustproof slide support according to claim 3, wherein the sliding plate (21) is provided with a first strip-shaped hole (211), and the hinge connecting pin (201) of the slide support passes through the first strip-shaped hole (211) and is adjustable in position in the first strip-shaped hole (211).

5. The dustproof slide support according to claim 4, wherein a second strip-shaped hole (31) is formed in the friction piece (3), the second strip-shaped hole (31) corresponds to the first strip-shaped hole (211), a stopping portion (2011) is arranged at one end of the hinge connecting pin (201), the upper end face of the stopping portion (2011) is attached to one side, facing the friction piece (3), of the sliding plate (21), and the lower end of the stopping portion (2011) is located in the second strip-shaped hole (31).

6. The dustproof sliding support according to claim 1, further comprising a friction piece (3), wherein the friction piece (3) comprises a friction plate, a first bending portion and a second bending portion are arranged on two opposite sides of the friction plate, the first bending portion is attached to the inner wall of the first sliding groove (221) and is in sliding fit with the first bending portion (12), and the second bending portion is attached to the inner wall of the second sliding groove (231) and is in sliding fit with the second bending portion (13).

7. The dust slide of claim 1, wherein the first curved portion (12) defines a first slot (121), the second curved portion (13) defines a second slot (131), and one side of the dust guard (14) is snapped into the first slot (121) and the other side is snapped into the second slot (131).

8. The dust-proof sliding support according to claim 1, characterized by further comprising a fastening component, wherein the sliding rail body (11) is fixed on the section bar (100) through the fastening component;

fastening components includes the retaining member, be provided with a plurality of mounting holes (114) on slide rail body (11), the retaining member passes mounting hole (114) and with section bar (100) are connected, be provided with a plurality of hole (141), a plurality of dodging on dust guard (14) hole (141) and a plurality of dodge hole (141) and a plurality of mounting hole (114) one-to-one.

9. The dust-proof sliding support according to any one of claims 1-8, further comprising a fixing member (4), wherein the fixing member (4) is located at an end of the sliding rail (1) and covers the sliding rail (1).

10. The dust-proof sliding support according to claim 3 or 6, characterized in that the sliding plate (21) is provided with an adjusting screw (5), and the adjusting screw (5) passes through the sliding plate (21) and is pressed against the friction member (3).

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