CN215830251U - Limiting device and door and window - Google Patents

Abstract

The utility model relates to a limiting device which comprises a shell, a pressing piece arranged on the shell, a limiting piece arranged on the shell and a rotating piece rotatably connected to the shell, wherein the pressing piece is arranged on the shell; the limiting piece can rotate relative to the shell by taking the first direction as an axis; the pressing piece can move along a second direction relative to the shell; the rotating piece can rotate around the axis direction of the rotating piece. When the limiting device is switched from the non-limiting state to the limiting state by pressing the pressing piece, the opening distance of the door and the window is limited; the limiting device is switched from a limiting state to a limiting error-preventing state by rotating the rotating piece, the limiting piece cannot be pressed down, a locking state is presented, and the limiting function is prevented from being cancelled accidentally; the rotating part resets and the limiting part is pressed, so that the limiting device is switched to a non-limiting state from a limiting error prevention state, the limiting device does not block doors and windows, and the sliding door and window can be fully opened.

Description

Limiting device and door and window

Technical Field

The utility model relates to the technical field of building door and window accessories, in particular to a limiting device and a door and window.

Background

Along with the improvement of living standard, people have higher and higher requirements on living environment, the requirements on doors and windows are also continuously improved, the types of the doors and windows for sealing structures are more and more, and people can select different types of the doors and windows according to different requirements. Among numerous doors and windows, sliding doors and windows are widely used due to the advantages of convenience in opening and closing, no occupation of indoor space and the like.

Among the current sliding door, the locating part that control door and window opened the distance is mostly external installation, leans on extrusion friction fixed during the installation, scrapes colored section bar surface easily, need pull down the locating part with the instrument once more when needs are opened fully and need not carry on spacingly to sliding door and window promptly, has awkward problem.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a limiting device for solving the above problems in view of the inconvenience in use and installation of the conventional limiting member for the sliding door and window.

A limiting device comprises a shell, a limiting part arranged on the shell, a pressing part arranged on the shell and a rotating part rotatably connected with the shell;

the limiting piece can rotate relative to the shell by taking a first direction as an axis, and one side of the limiting piece, which is close to the rotating piece, is provided with a first connecting plate; the rotating piece can rotate around the axis direction of the rotating piece, and is provided with a first clamping groove and a second clamping groove communicated with the first clamping groove; the pressing piece can move along a second direction relative to the shell;

when the pressing piece is located at the first position, the limiting piece is in clamping fit with the pressing piece, and the limiting piece is locked relative to the shell;

when the pressing piece is located at the second position, the limiting piece is separated from the pressing piece, and the limiting piece is unlocked relative to the shell; when the rotating piece rotates to a first state, the first connecting plate is located in the first clamping groove and can move in the first clamping groove along the second direction; when the rotating piece rotates to the second state, the first connecting plate is located in the second clamping groove, and the first connecting plate is opposite to the rotating piece in a locking mode.

In one embodiment, the first clamping groove is arranged in a through groove along the axial direction of the rotating part;

and/or the second clamping groove is arranged in an arc-shaped groove along the circumferential direction of the rotating part.

In one embodiment, the rotating member includes a first connecting shaft, a sleeve sleeved on the first connecting shaft, and a cover connected to one end of the first connecting shaft;

the shaft sleeve is provided with an open slot which penetrates along the axis of the shaft sleeve, and the open slot forms the first clamping slot; the shaft sleeve and the cover body are provided with a gap, and the second clamping groove is formed in the gap.

In one embodiment, a first protrusion is arranged on one side of the limiting member away from the mounting surface of the housing, a second connecting plate is arranged on one side of the pressing member away from the mounting surface of the housing, the second connecting plate is provided with a third slot, and when the first protrusion is arranged in the third slot in a penetrating manner, the limiting member is locked relative to the housing.

In one embodiment, one side of the first bump close to the pressing piece is provided with a first arc surface, and one side of the second connecting plate far away from the pressing piece is provided with a first inclined surface;

when the limiting part rotates anticlockwise by taking the first direction as an axis, the first lug presses the second connecting plate, and the first lug is separated from the first inclined surface and slides into the third clamping groove through transition of the first cambered surface and the first inclined surface.

In one embodiment, the limiting device further includes a second connecting shaft, the housing has first mounting holes at two opposite sides along the first direction, the limiting member has second mounting holes at two opposite sides along the first direction, and the second connecting shaft passes through the first mounting holes and the second mounting holes to rotatably connect the limiting member to the housing;

or, the locating part has first erection column along the relative both sides of first direction, the casing has first mounting hole along the relative both sides of first direction, first erection column with first mounting hole grafting cooperation.

In one embodiment, the limiting device further comprises a bottom plate connected to the shell;

the limiting device further comprises a first elastic piece, one side of the first elastic piece is connected with the bottom plate, the other side of the first elastic piece is abutted against the limiting piece, and the first elastic piece is used for applying a thrust force along the second direction to the limiting piece;

and/or the limiting device further comprises a second elastic piece, one side of the second elastic piece is connected with the bottom plate, the other side of the second elastic piece is abutted against the pressing piece, and the second elastic piece is used for applying restoring force to the pressing piece.

In one embodiment, the housing has a second inclined surface, the limiting member has a second protrusion which rotates synchronously with the limiting member, and the second inclined surface is used for limiting the rotation angle of the second protrusion when the limiting member rotates until the second protrusion contacts with the second inclined surface;

and/or, the locating part has with the synchronous pivoted second erection column of locating part, the casing has the second spacing groove, the second erection column wears to locate the second spacing groove and can be in the removal of second spacing inslot.

In one embodiment, one side of the limiting member close to the pressing member is provided with a third bump which rotates synchronously with the limiting member, and the shell is provided with a first plane; when the limiting piece rotates to the state that the third bump is in contact with the first plane, the first plane is used for limiting the third bump to be separated from the shell.

The utility model also provides a sliding door and window, which can solve at least one technical problem.

The sliding door comprises a door window frame, door and window sashes and the limiting device, wherein the door and window sashes are movably connected to the door and window frame, the limiting device is arranged on the door and window frame, and the limiting device is used for limiting the opening distance of the door and window sashes.

After adopting this technical scheme, compare with prior art, this technical scheme has following beneficial effect: the limiting device comprises a shell, a pressing piece arranged on the shell, a limiting piece arranged on the shell and a rotating piece rotatably connected to the shell; the limiting piece can rotate relative to the shell by taking the first direction as an axis; the pressing piece can move along a second direction relative to the shell; the rotating piece can rotate around the axis direction of the rotating piece. When the pressing piece is located at the first position, the limiting piece is in clamping fit with the pressing piece, the rotating piece is located at the first state, the first connecting plate is located in the first clamping groove, and the limiting piece is locked relative to the shell; when the pressing piece moves downwards to the second position, the limiting piece is separated from the pressing piece, and meanwhile, the first connecting plate moves upwards in the first clamping groove, so that one end of the limiting piece tilts and stops the opening of a door window, and the effect of limiting the opening distance of the door window is achieved; when the rotating member rotates to the second state, the first connecting plate rotates from the first clamping groove to the second clamping groove, the second clamping groove can limit the movement of the first connecting plate, namely the limiting member cannot move up and down, the locked state is presented, and the situation that when a child plays, one end of the limiting member which is tilted is accidentally pressed down is avoided, so that the limiting and mistake preventing effects are achieved; when the limiting function needs to be removed, the rotating part resets, the first connecting plate rotates to the first clamping groove from the second clamping groove, the limiting part is pressed, the tilted end retracts into the shell, the limiting part and the pressing part are in a clamping state again, and the pressing part can limit the limiting part to rotate, so that the limiting device does not stop the door and the window, and the door and the window can be normally opened.

Drawings

FIG. 1 is a partial schematic view of a spacing device according to an embodiment of the utility model;

FIG. 2 is an exploded view of the spacing device shown in FIG. 1;

FIG. 3 is a cross-sectional view of the spacing device shown in FIG. 1;

FIG. 4 is a cross-sectional view of the stop device shown in FIG. 1 in a false proof condition;

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

FIG. 6 is a schematic view of the installation of the spacing device shown in FIG. 1;

fig. 7 is a partial schematic view of a sliding door according to an embodiment of the utility model.

Reference numerals: 10-sliding doors and windows; 100-a limiting device; 110-a housing; 111-a first mounting hole; 112-a first elastic member; 113-a second elastic member; 114-a second bevel; 115-a second restraint slot; 116-a first plane; 117-second plane; 118-a mounting surface; 120-a stop; 121-a first bump; 122 — a first connection plate; 123-a second mounting hole; 124-first cambered surface; 125-second bump; 126-a second mounting post; 127-a third bump; 130-a press; 131-a second connecting plate; 132-a first bevel; 133-a third card slot; 140-a rotating member; 141-a first card slot; 142-a second card slot; 143-a first connecting shaft; 144-a shaft sleeve; 145-a cover; 150-a second connecting shaft; 160-a base plate; 161-a first locking member; 200-door and window frames; 300-door and window sash.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Just as in the background art, among the current sliding door, control door and window opens the locating part of distance and mostly be external installation, lean on extrusion friction during the installation fixed, scrape colored section bar surface easily, when need not carry on spacingly to sliding door, need pull down the locating part with the instrument once more, have awkward problem.

The utility model provides a limiting device which comprises a shell, a pressing piece arranged on the shell, a limiting piece arranged on the shell and a rotating piece rotatably connected to the shell, wherein the pressing piece is arranged on the shell; the limiting piece can rotate relative to the shell by taking the first direction as an axis; the pressing piece can move along a second direction relative to the shell; the rotating piece can rotate around the axis direction of the rotating piece. When the pressing piece is located at the first position, the limiting piece is in clamping fit with the pressing piece, the rotating piece is located at the first state, the first connecting plate is located in the first clamping groove, and the limiting piece is locked relative to the shell; when the pressing piece moves downwards to the second position, the limiting piece is separated from the pressing piece, and meanwhile, the first connecting plate moves upwards in the first clamping groove, so that one end of the limiting piece tilts and stops the opening of a door window, and the effect of limiting the opening distance of the door window is achieved; when the rotating member rotates to the second state, the first connecting plate rotates from the first clamping groove to the second clamping groove, the second clamping groove can limit the movement of the first connecting plate, namely the limiting member cannot move up and down, the locked state is presented, and the situation that when a child plays, one end of the limiting member which is tilted is accidentally pressed down is avoided, so that the limiting and mistake preventing effects are achieved; when the limiting function needs to be removed, the rotating part resets, the first connecting plate rotates to the first clamping groove from the second clamping groove, the limiting part is pressed, the tilted end retracts into the shell, the limiting part and the pressing part are in a clamping state again, and the pressing part can limit the limiting part to rotate, so that the limiting device does not stop the door and the window, and the door and the window can be normally opened.

Some embodiments of the utility model are described in detail below with reference to the accompanying drawings. FIG. 1 is a partial schematic view of a spacing device according to an embodiment of the utility model; FIG. 2 is an exploded view of the spacing device shown in FIG. 1;

FIG. 3 is a cross-sectional view of the spacing device shown in FIG. 1; FIG. 4 is a cross-sectional view of the stop device shown in FIG. 1 in a false proof condition; FIG. 5 is an enlarged view of a portion of FIG. 4 at A; FIG. 6 is a schematic view of the installation of the spacing device shown in FIG. 1; fig. 7 is a partial schematic view of a sliding door according to an embodiment of the utility model.

Taking the placement view of fig. 1 as an example, the first direction is a front-back direction, and the second direction is a vertical direction, the limiting device 100 includes a housing 110, a limiting member 120 installed on the housing 110, a pressing member 130 installed on the housing 110, and a rotating member 140 rotatably connected to the housing 110; the limiting member 120 can rotate around the first direction as an axis relative to the housing 110, and a first connecting plate 122 is disposed on one side of the limiting member 120 close to the rotating member 140; the rotating member 140 can rotate around its axis, and the rotating member 140 has a first engaging groove 141 and a second engaging groove 142 communicated with the first engaging groove 141; the pressing piece 130 is movable in a second direction, i.e., a vertical direction, with respect to the housing 110; when the pressing member 130 is located at the first position, the limiting member 120 is in clamping fit with the pressing member 130, and the limiting member 120 is locked relative to the housing 110; when the pressing member 130 is located at the second position, the limiting member 120 is separated from the pressing member 130, and the limiting member 120 is unlocked relative to the housing 110, wherein the first position and the second position are positions distributed along the height direction of the housing, the first position is a position where the pressing member is located when the limiting member can be clamped with the pressing member, and the second position is a position where the pressing member is located relative to the housing when the limiting member is separated from the pressing member; when the rotating member 140 rotates to the first state, the first connecting plate is opposite to the first slot, and the first connecting plate 122 is located in the first slot 141 and can move in the first slot 141 along the second direction; when the rotating member 140 rotates to the second state, the first connecting plate is opposite to the second engaging groove, the first connecting plate 122 is located in the second engaging groove 142, and the first connecting plate 122 is locked with respect to the rotating member 140.

The limiting device 100 is installed in a notch of a section bar of a door and window frame 200, the installation surface 118 of the shell 110 is a surface close to a door and a window, and the state shown in fig. 1 is that the limiting device 100 does not limit the opening distance of the door and the window, at this time, the pressing piece 130 is in a first position, and the limiting piece 120 is in clamping fit with the pressing piece 130; the rotating member 140 is in the first state, the first connecting plate 122 is located in the first engaging groove 141, and the pressing member 130 limits the right end of the rotating member 140 to move downward, so that the limiting member 120 is in a stationary state relative to the housing 110; when the pressing member 130 moves downwards to the second position, the limiting member 120 is separated from the pressing member 130, so that the right end of the limiting member 120 can move downwards, and meanwhile, the first connecting plate 122 at the left end of the limiting member 120 moves upwards in the first clamping groove 141, so that the left end of the limiting member 120 tilts; as shown in fig. 4, when the counterclockwise rotating element 140 rotates to the second state, the first connecting plate 122 rotates from the first engaging groove 141 to the second engaging groove 142, and the distance between the upper groove wall and the lower groove wall of the second engaging groove 142 is slightly greater than the height of the first connecting plate 122, so that the first connecting plate 122 cannot move up and down in the second engaging groove 142, that is, the limiting element 120 cannot move up and down relative to the housing 110, and is in a locked state, thereby preventing a tilting end of the limiting element 120 from being pressed down by a child when playing, and thus performing a limiting and error preventing function; when the limiting function needs to be removed, the rotating member 140 is rotated clockwise to reset the rotating member, so that the first connecting plate 122 rotates into the first engaging groove 141 from the second engaging groove 142, the limiting member 120 is pressed, the tilted end retracts into the housing 110, and the limiting member 120 and the pressing member 130 are in the engaging state again, as shown in fig. 3, because the pressing member 130 can limit the right end of the limiting member 120 to move downward, the limiting device 100 does not block the door or window, and the door or window can be opened rightward continuously.

As shown in fig. 2, the first engaging groove 141 is disposed at the right end of the rotating member 140 and is disposed as a through groove along the axial direction of the rotating member 140, so as to provide a larger movement space for the first connecting plate 122, and facilitate the first connecting plate 122 to move up and down in the first engaging groove 141; the second locking groove 142 is arranged at the front end of the rotating member 140 and is arranged in an arc-shaped groove along the circumferential direction of the rotating member 140, and when the error prevention function is required by the limiting device 100, the rotating member 140 can only rotate anticlockwise to the second state, so that the reliability of limiting and error prevention is improved; the groove width of the second engaging groove 142 is slightly larger than the thickness of the first connecting plate 122, so that the first connecting plate 122 is transited from the upper portion of the first engaging groove 141 to the second engaging groove 142, and the second engaging groove 142 can limit the up-and-down movement of the first connecting plate 122, thereby realizing the limiting and error-preventing function of the limiting device 100. In other embodiments, the first engaging groove 141 does not penetrate to the bottom of the rotating member 140, and the first engaging groove 141 may be a notch that is obliquely disposed, as long as the first connecting plate 122 can move up and down in the first engaging groove 141; second draw-in groove 142 can be along the circumference that rotates piece 140 being logical groove setting, if need play spacing mistake function of preventing, rotates piece 140 can clockwise rotate to the second state, also can anticlockwise rotate to the second state, reduces spacing difficulty of preventing maloperation.

Further, the rotation member 140 includes a first connecting shaft 143, a sleeve 144 sleeved on the first connecting shaft 143, and a cover 145 connected to one end of the first connecting shaft 143; the shaft sleeve 144 has an open slot penetrating along the axis thereof, and the open slot forms a first slot 141; the shaft sleeve 144 and the cover 145 have a gap, and the gap forms a second engaging groove 142. When the first connecting plate 122 is positioned in the opening groove of the shaft sleeve 144, the first connecting plate 122 can move up and down to realize a limiting function; when the first connecting plate 122 is located in the gap between the shaft sleeve 144 and the cover 145, the cover 145 limits the first connecting plate 122 from moving upwards, so that a limiting and error-preventing function is realized. Specifically, an end of the first connecting plate 122 adjacent to the rotating member 140 is arc-shaped, so that the first connecting plate 122 is prevented from interfering with the first connecting shaft 143 during movement, and the first connecting plate 122 has a larger protruding space. In other embodiments, the opening groove may not penetrate to the bottom of the shaft sleeve 144, the shaft sleeve 144 may be an irregular cylinder, a gap is formed between the front end of the shaft sleeve 144 and the cover 145, and the rear end of the shaft sleeve 144 is clamped with the cover 145, so that the rotating member 140 can only rotate in one direction to achieve the limiting anti-error function or the anti-error unlocking function. Further, the cover 145 is provided with a straight groove or a cross groove at the top thereof, so that the rotator 140 can be conveniently rotated by a disc object such as a coin.

Referring to fig. 2, in one embodiment, the side of the position-limiting member 120 away from the mounting surface 118 of the housing 110 has a first protrusion 121, the side of the pressing member 130 away from the mounting surface 118 of the housing 110 has a second connecting plate 131, and the second connecting plate 131 has a third slot 133; the first protrusion 121 penetrates through the third slot 133, and due to the limitation of the third slot 133, the right end of the limiting member 120 cannot rotate downward, so that the limiting member 120 is in a stationary state relative to the housing 110, that is, the limiting member 120 does not play a limiting role. In other embodiments, the first protrusion 121 may not be disposed at the bottom of the limiting member 120, a fourth protrusion extends from one end of the pressing member 130 close to the limiting member 120, and the pressing member 130 is rotated to make the fourth protrusion abut against the bottom of the limiting member 120, so as to limit the downward rotation of the right end of the limiting member 120, and make the limiting member 120 in a stationary state relative to the housing 110.

As shown in fig. 5, in one embodiment, a side of the first protrusion 121 close to the pressing piece 130 has a first arc surface 124, and a side of the second connecting plate 131 away from the pressing piece 130 has a first inclined surface 132; when the limiting member 120 rotates counterclockwise around the first direction as an axis, the first protrusion 121 rotates counterclockwise synchronously, so as to abut against the first inclined surface 132 and apply a downward pressure to the second connection plate 131, so that the second connection plate 131 moves downward, and the first protrusion 121 rotates counterclockwise, so that the first arc surface 124 transits from the first inclined surface 132 to abut against the upper surface of the second connection plate 131 until sliding into the third slot 133, and the engagement state between the limiting member 120 and the rotating member 140 is restored again.

Referring to fig. 5, in one embodiment, the housing 110 has a second inclined surface 114, the limiting member 120 has a second protrusion 125 rotating synchronously with the limiting member 120, and when the limiting member 120 rotates clockwise until the second protrusion 125 contacts the second inclined surface 114, the limiting member 120 cannot rotate clockwise due to the blocking of the second inclined surface 114, so as to limit the rotation angle of the limiting member 120, prevent the first connecting plate 122 from being separated from the housing 110, and improve the reliability of the limiting device 100.

Further, as shown in fig. 2, the front end and the rear end of the limiting member 120 are provided with second mounting posts 126 rotating synchronously with the limiting member 120, the front side and the rear side of the housing 110 are provided with second limiting grooves 115, the second mounting posts 126 penetrate through the second limiting grooves 115 and can move in the second limiting grooves 115, when the second mounting posts 126 rotate to the top of the second limiting grooves 115, the limiting member 120 cannot continue to rotate because the second mounting posts 126 do not have a moving space, and the rotation angle of the limiting member 120 is further limited.

As shown in fig. 3, one side of the limiting member 120 close to the pressing member 130 has a third protrusion 127 rotating synchronously with the limiting member 120, and the housing 110 has a first plane 116; when the limiting member 120 rotates until the third protrusion 127 contacts the first plane 116, the third protrusion 127 cannot be separated from the housing 110 due to the blocking of the first plane 116, that is, the limiting member 120 can be stationary relative to the housing 110 when moving to this angle. Further, the housing 110 has a second plane 117, and the second web 131 abuts against the second plane 117 to restrict the second web 131 from being detached from the housing 110.

In one embodiment, the limiting device 100 further includes a base plate 160, the base plate 160 has mounting holes at two ends, and the base plate 160 is locked and fixed to the housing 110 by a first locking member 161, so that the rotating member 140, the limiting member 120 and the pressing member 130 are enclosed and contained in the housing 110. In particular, the first locking member is a screw. Further, the limiting device 100 further includes a first elastic member 112, one side of the first elastic member 112 is connected to the bottom plate 160, and the other side of the first elastic member 112 abuts against the limiting member 120. Specifically, the first elastic member 112 is a first spring, a receiving groove is formed at the bottom of the limiting member 120, the first spring is received in the receiving groove, and when the limiting member 120 is in a static state, the first spring is in a compressed state, so that when the first connecting plate 122 is separated from the third slot 133, the first spring applies a thrust force along a vertical direction to the limiting member 120, and the limiting member 120 can rotate and tilt clockwise. In another embodiment, the first spring may not be provided, and when the first protrusion 121 is disengaged from the third slot 133, the right end of the limiting member 120 is tilted by pressing the left end of the limiting member 120.

Further, the limiting device 100 further includes a second elastic member 113, one side of the second elastic member 113 is connected to the bottom plate 160, and the other side of the second elastic member 113 abuts against the pressing member 130. Specifically, the second elastic member 113 is a second spring, and when the tilting end of the pressing limiting member 120 moves downward, the first protrusion 121 acts on the second connecting plate 131 to press the second spring until the first protrusion 121 is engaged with the third slot 133, and the second spring applies a vertical upward pushing force to the pressing member 130, so that the engagement between the first protrusion 121 and the third slot 133 is more stable.

As shown in fig. 2, in one embodiment, the limiting device 100 further includes a second connecting shaft 150, the housing 110 has first mounting holes 111 at two opposite sides in the front-back direction, the limiting member 120 has second mounting holes 123 at two opposite sides in the front-back direction, and the second connecting shaft 150 penetrates through the first mounting holes 111 and the second mounting holes 123 to rotatably connect the limiting member 120 to the housing 110. When the pressing member 130 does not limit the movement of the limiting member 120, the limiting member 120 can rotate around the second connecting shaft 150 relatively clockwise or counterclockwise. In other embodiments, the two opposite sides of the limiting member 120 along the front-back direction have first mounting posts, and the limiting member 120 rotates relative to the housing 110 through the insertion fit between the first mounting posts and the first mounting holes 111.

When the limiting device 100 is in the non-limiting state, the limiting member 120 compresses the first spring, the first protrusion 121 is inserted into the third slot 133, and the third protrusion 127 abuts against the first plane 116 of the housing 110, so as to limit the rotation of the limiting member 120; the rotating member 140 is in the first state, the first connecting plate 122 is located in the first engaging groove 141, and the limiting member 120 is stationary relative to the housing 110; applying pressure to the pressing member 130, so that the pressing member 130 moves downward until the first protrusion 121 is separated from the third slot 133, at this time, the first spring applies a vertical upward thrust to the limiting member 120, so that the limiting member 120 can rotate clockwise around the second connecting shaft 150, the first connecting plate 122 at the left end of the limiting member 120 moves upward in the first slot 141 to the top of the first slot 141, so that the left end of the limiting member 120 is tilted, and when the sliding door 10 abuts against one tilted end of the limiting member 120, the limiting member 120 blocks the door and window from moving continuously, thereby limiting the opening distance of the door and window; when the rotating member 140 rotates to the second state, the first connecting plate 122 rotates from the first engaging groove 141 to the second engaging groove 142, and the second engaging groove 142 restricts the first connecting plate 122 from moving up and down, so that the limiting member 120 cannot move relative to the housing 110, and is in a locked state, thereby preventing a child from accidentally pressing down the tilted end of the limiting member 120 when playing, and thus playing a role of limiting and preventing errors; when the position limiting function needs to be removed, the rotating member 140 is rotated to reset the rotating member, so that the first connecting plate 122 rotates from the second engaging groove 142 to the first engaging groove 141, in the process of pressing the position limiting member 120, the first protrusion 121 abuts against the first inclined surface 132 and applies downward pressure to the second connecting plate 131, so that the second connecting plate 131 moves downward to compress the second spring, the first arc surface 124 transits from the first inclined surface 132 to abut against the upper surface of the second connecting plate 131 through the counterclockwise rotation of the first protrusion 121 until sliding into the third engaging groove 133, the engagement state between the position limiting member 120 and the rotating member 140 is restored again, the third protrusion 127 abuts against the first plane 116, and the second spring applies a vertical upward pushing force to the pressing member 130, so that the second connecting plate 131 limits the rotation of the first protrusion 121, the position limiting member 120 and the mounting surface 118 of the housing 110 are at the same height, and the position limiting device 100 does not block the door window any more, thereby enabling the door and window to continue to open rightwards.

As shown in fig. 7, the present invention further provides a sliding door 10, which comprises a door frame 200, a door sash 300 and the above-mentioned position limiting device 100, wherein the door sash 300 is movably connected to the door frame 200, the position limiting device 100 is mounted on the door frame 200, and the position limiting device 100 is used for limiting the opening distance of the door sash 300. As shown in fig. 6, the installation diagram of the limiting device 100 is shown, the right side of the casing 110 has a fourth clamping groove, the left side of the casing 110 has a fifth clamping groove, and as shown by an arrow, after the limiting device 100 is horizontally placed to enable the first clamping groove to be clamped with the profile, the left side of the limiting device 100 is pressed, the fifth clamping groove is clamped with the profile, and the limiting device 100 is installed in the profile groove. When the limiting device 100 is switched from the non-limiting state to the limiting state by pressing the pressing piece 130, the opening distance of the door and window is limited; by rotating the rotating member 140, the limiting device 100 is switched from the limiting state to the limiting error-preventing state, the limiting member 120 cannot be pressed down, and the locking state is presented, so that the limiting function is prevented from being cancelled accidentally; the rotating member 140 is reset, and the limiting member 120 is pressed, so that the limiting device 100 is switched from the limiting error prevention state to the non-limiting state, the limiting device 100 does not block the door or window, and the sliding door or window 10 can be fully opened.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. The limiting device is characterized by comprising a shell (110), a limiting piece (120) arranged on the shell (110), a pressing piece (130) arranged on the shell (110) and a rotating piece (140) rotatably connected to the shell (110);

the limiting piece (120) can rotate relative to the shell (110) by taking a first direction as an axis, and one side, close to the rotating piece (140), of the limiting piece (120) is provided with a first connecting plate (122); the rotating piece can rotate around the axis direction of the rotating piece, and the rotating piece (140) is provided with a first clamping groove (141) and a second clamping groove (142) communicated with the first clamping groove (141); the pressing piece (130) is movable in a second direction relative to the housing (110);

when the pressing piece (130) is located at a first position, the limiting piece (120) is in clamping fit with the pressing piece (130), and the limiting piece (120) is locked relative to the shell (110);

when the pressing piece (130) is located at the second position, the limiting piece (120) is separated from the pressing piece (130), and the limiting piece (120) is unlocked relative to the shell (110); when the rotating piece (140) rotates to a first state, the first connecting plate (122) is located in the first clamping groove and can move in the first clamping groove (141) along the second direction; when the rotating piece (140) rotates to the second state, the first connecting plate (122) is located in the second clamping groove (142), and the first connecting plate (122) is locked relative to the rotating piece (140).

2. The limiting device according to claim 1, wherein the first slot (141) is a through slot along the axial direction of the rotating member;

and/or the second clamping groove (142) is arranged in an arc-shaped groove along the circumferential direction of the rotating part.

3. The spacing device according to claim 2, wherein the rotating member comprises a first connecting shaft (143), a sleeve (144) sleeved on the first connecting shaft (143), and a cover (145) connected to one end of the first connecting shaft (143);

the shaft sleeve (144) is provided with an open slot which penetrates along the axis of the shaft sleeve, and the open slot forms the first clamping slot; the shaft sleeve (144) and the cover body (145) have a gap, and the gap forms the second clamping groove.

4. The limiting device according to claim 1, wherein a side of the limiting member (120) away from the mounting surface (118) of the housing (110) is provided with a first protrusion (121), a side of the pressing member (130) away from the mounting surface (118) of the housing (110) is provided with a second connecting plate (131), the second connecting plate (131) is provided with a third slot (133), and when the first protrusion (121) is inserted into the third slot (133), the limiting member (120) is locked with respect to the housing (110).

5. The stop device according to claim 4, wherein the first cam (121) has a first arc surface (124) on a side close to the pressing piece (130), and the second connecting plate (131) has a first inclined surface (132) on a side away from the pressing piece (130);

when the limiting member rotates counterclockwise by taking the first direction as an axis, the first bump presses the second connecting plate, and the first bump is separated from the first inclined surface and slides into the third clamping groove (133) through the transition between the first arc surface and the first inclined surface.

6. The limiting device according to claim 1, further comprising a second connecting shaft (150), wherein the housing (110) has first mounting holes (111) at two opposite sides along the first direction, the limiting member (120) has second mounting holes (123) at two opposite sides along the first direction, and the second connecting shaft (150) passes through the first mounting holes (111) and the second mounting holes (123) to rotatably connect the limiting member (120) to the housing (110);

or, the two opposite sides of the limiting part (120) along the first direction are provided with first mounting columns, the two opposite sides of the shell (110) along the first direction are provided with first mounting holes (111), and the first mounting columns are in plug-in fit with the first mounting holes (111).

7. The spacing device of claim 1, further comprising a base plate (160) connected to said housing;

the limiting device further comprises a first elastic piece (112), one side of the first elastic piece is connected with the bottom plate, the other side of the first elastic piece (112) is abutted to the limiting piece (120), and the first elastic piece (112) is used for applying a pushing force along the second direction to the limiting piece (120);

and/or the limiting device further comprises a second elastic piece (113), one side of the second elastic piece (113) is connected with the bottom plate, the other side of the second elastic piece is abutted against the pressing piece (130), and the second elastic piece (113) is used for applying restoring force to the pressing piece (130).

8. The limiting device according to claim 1, wherein the housing (110) has a second inclined surface (114), the limiting member (120) has a second protrusion (125) rotating synchronously with the limiting member, and the second inclined surface (114) is used for limiting the rotation angle of the second protrusion (125) when the limiting member (120) rotates until the second protrusion contacts with the second inclined surface;

and/or the limiting piece (120) is provided with a second mounting column (126) which synchronously rotates with the limiting piece, the shell (110) is provided with a second limiting groove (115), and the second mounting column (126) penetrates through the second limiting groove (115) and can move in the second limiting groove.

9. The stop device according to claim 1, wherein a side of the stop member (120) close to the pressing member (130) has a third protrusion (127) rotating synchronously with the stop member, and the housing (110) has a first plane (116); when the limiting piece (120) rotates to the point that the third bump is in contact with the first plane, the first plane (116) is used for limiting the third bump (127) to be separated from the shell (110).

10. Sliding door, characterized in that, sliding door includes door and window frame (200), door and window fan (300) and stop device (100) according to any one of claims 1-9, door and window fan (300) swing joint in door and window frame (200), stop device (100) install in door and window frame (200), stop device (100) are used for restricting the opening distance of door and window fan (300).

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