CN217999311U - Upper guide wheel assembly for sliding door and window and sliding door and window - Google Patents

Abstract

The utility model relates to the technical field of sliding doors and windows, in particular to an upper guide wheel assembly for translational doors and windows and a translational door and window, the upper guide wheel assembly comprises a sliding plate, a guide plate and two positioning seats, the lower surface of the guide plate and the upper surface of the sliding plate are oppositely arranged, one of the guide plate and the guide plate is provided with a guide pillar, the other guide pillar is provided with a sliding chute for the guide pillar to extend into, the sliding chute comprises a first straight chute, a second straight chute and a chute, the positioning seats are used for fixedly connecting a sash frame, the two positioning seats are respectively arranged at two ends of the guide plate and are in spacing fit with the two ends of the guide plate to limit the positioning seats and the guide plate to only slide relatively along the width direction, and the two positioning seats are also respectively in spacing fit with two ends of the sliding plate to limit the sliding plate to only slide along the length direction relative to the positioning seats; the utility model discloses an go up the leading wheel subassembly and only deflector and sliding plate stack the setting in the direction of height, present the platyzization structure, occupation space is little, and the both ends positioning seat is installed and spacing, and the structure is succinct, and loading and unloading are convenient.

Description

Translation door and window is with last guide pulley subassembly and translation door and window

Technical Field

The utility model relates to a sliding door technical field specifically is a translation door and window is with last guide pulley subassembly and translation door and window.

Background

The sliding door is by two above door and window fans along the rail direction (being length direction) relative push-and-pull removal of door and window frame to the state of overlapping or the state of staggering realizes opening or closing of door and window fan, and for the push-and-pull is smooth and easy, consequently there is the clearance in the width direction between activity door and window fan and other door and window fans, between activity door and window fan and the door and window frame, will lead to the leakproofness not good like this for sound insulation performance and thermal insulation performance are not good. At present, some sliding doors and windows also realize the translation function by adopting guide wheel assemblies with the translation function, so that the gaps can be closed or reduced when the sliding doors and windows are closed, and the sealing performance is improved, for example, patents such as CN 2018221237720-a translation airtight door and window and the like which are previously applied by the applicant exist, but the upper guide wheel assemblies disclosed in the patents have the problems of more complex structure, inconvenient installation, larger occupied space in the height direction and the like, and the improvement is urgently needed.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defect that exists among the prior art, the utility model aims to provide a translation door and window is with last guide pulley subassembly and translation door and window, should go up the guide pulley subassembly and adopt the design of flattening, occupation space is little in the direction of height, and the structure is succinct, and loading and unloading are convenient.

The utility model discloses one of the task is realized through following technical scheme:

the utility model provides a translation door and window is with last guide pulley subassembly, including the sliding plate, deflector and two positioning seats, the upper surface of deflector is equipped with and is used for cooperating the window frame to go up the guide rail and follow its length direction gliding guide part, the lower surface of deflector and the relative setting of upper surface of sliding plate and one of them is equipped with the guide pillar, another correspondence is equipped with and supplies the guide pillar to stretch into gliding spout, the spout includes along length direction and the first straight flute and the second straight flute that the interval set up, and the chute of the adjacent end of first straight flute of intercommunication and second straight flute, one in first straight flute and the second straight flute is close to the window in, another is close to the window outside, the positioning seat is used for frame on the fixed connection casement, two positioning seats set up respectively at the both ends of deflector and carry out spacing cooperation with it in order to restrict positioning seat and deflector can only follow width direction relative slip, and two positioning seats still can only carry out spacing cooperation with the both ends of sliding plate respectively in order to restrict the relative positioning seat of sliding plate and slide along length direction.

As a preferable technical scheme, the guide pillar is a parallelogram slider, the first straight groove, the second straight groove and the chute are groove bodies matched with the parallelogram slider, wherein parts of the first straight groove and the second straight groove are overlapped and communicated with the chute, so that the guide pillar can slide from one end of the chute to the other end under the limiting and guiding effects of the chute, and at least two side walls of the guide pillar are kept attached to the side walls of the chute.

As a preferable technical solution, the number of the guide posts and the sliding grooves is at least two, wherein the guide posts are arranged on the lower surface of the guide plate and are arranged at intervals along the length direction thereof, and the sliding grooves are correspondingly arranged on the upper surface of the sliding plate and are arranged at intervals along the length direction thereof.

As a preferable technical scheme, the sliding groove does not penetrate through the sliding plate, so that the sliding groove forms an accommodating cavity convenient for oil accumulation.

According to the preferable technical scheme, opposite ends of the two positioning seats are respectively provided with a slot, two ends of the guide plate are respectively provided with an inserting end, the inserting ends are inserted into the slots, the width of each inserting end is smaller than that of each slot, so that the positioning seats and the guide plate can slide relatively along the width direction, the height of each inserting end is matched with the height of each slot, the positioning seats and the guide plate cannot move relatively along the height direction, and the two positioning seats are respectively abutted against two ends of the guide plate, so that the positioning seats and the guide plate cannot move relatively along the length direction.

As an optimized technical scheme, two ends of the sliding plate are respectively provided with two guide rods which extend along the length direction of the sliding plate and are parallel to each other in the left-right direction, the lower surface of the positioning seat is provided with guide grooves matched with the two guide rods, the two guide rods are respectively embedded into the corresponding guide grooves, so that the sliding plate is limited to slide along the length direction relative to the positioning seat, the positioning seat is provided with a mounting hole which penetrates downwards and is used for allowing a screw to penetrate through an upper frame of a connecting window sash, and the lower surface of the positioning seat is provided with support legs used for abutting against the upper frame of the window sash.

Preferably, the guide portion is at least two rotatable guide wheels spaced apart from each other along a length direction of the guide plate, at least one of the guide wheels is located near a left side of the guide plate for rolling contact with a left side surface of the guide rail on the window frame, and at least one of the guide wheels is located near a right side of the guide plate for rolling contact with a right side surface of the guide rail on the window frame.

As the preferred technical scheme, the lower surface of the sliding plate is provided with a bolt for connecting a door and window transmission rod.

Preferably, at least one of the lower surface of the guide plate and the upper surface of the sliding plate is provided with a plurality of circular arc-shaped convex strips at intervals, the circular arc-shaped convex strips are abutted against the other circular arc-shaped convex strip, and each circular arc-shaped convex strip extends along the width direction or the chute direction.

The utility model discloses second task realizes through following technical scheme:

the utility model provides a translation door and window, includes window frame, casement, handle, drive mechanism, transfer line, translation door and window use lower guide pulley subassembly and preceding translation door and window use last guide pulley subassembly, the quantity of casement is at least two, wherein the upper and lower side of at least one casement passes through at least one upper guide pulley subassembly and at least one lower guide pulley subassembly slidable mounting respectively in the window frame, the side of casement and/or window frame is equipped with joint strip, the transfer line with the sliding plate carries out the transmission and connects, the handle pin joint in the casement can drive the transfer line through drive mechanism and remove along the casement frame to drive the sliding plate and remove along the length direction of casement frame, and then through the guide pillar with the direction cooperation of spout, drive the casement slant translation is in the window frame in order to extrude joint strip.

The utility model provides a pair of translation door and window is with last guide pulley subassembly, in operation, can realize in the window frame that the push-and-pull direction of casement at length direction and spacing through the guide part on the deflector, when rotating the door and window handle and drive the transfer line through drive mechanism and remove along the casement frame, can drive the length direction removal of sliding plate along the casement frame, because the deflector can only remove along length direction under the spacing of guide rail on the window frame, through the direction cooperation of guide pillar and spout, under the reaction force of deflector, can pass through the sliding plate, the positioning seat drives the slant translation of casement in the window frame, produce width direction's displacement promptly, thereby can extrude joint strip and realize better sealed effect.

Compared with the prior art, the last guide pulley subassembly and translation door and window for translation door and window that this patent provided has following advantage: only deflector and sliding plate stack the setting from top to bottom in the direction of height to make the upper guide wheel subassembly main part present the platyzied structure, occupation space is little, and the both ends of deflector and sliding plate are installed and spacing through a pair of positioning seat jointly, have replaced the mount that is used for connecting the casement frame in the traditional translation guide wheel subassembly, and the structure is succinct, and loading and unloading are convenient.

The conception, the specific structure and the effects of the present invention will be further explained with reference to the drawings, so as to fully understand the objects, the features and the effects of the present invention.

Drawings

FIG. 1 is a schematic view of the structure of an upper idler assembly in embodiment 1;

FIG. 2 is one of exploded schematic views of an upper idler assembly in embodiment 1;

FIG. 3 is a second exploded view of the upper idler assembly in accordance with embodiment 1;

FIG. 4 is a schematic view of the sliding door/window of embodiment 2 with a part of the structure omitted;

fig. 5 is an exploded view of the sliding door/window in embodiment 2.

The window sash positioning device comprises an upper guide wheel assembly 10, a sliding plate 11, a sliding groove 111, a first straight groove 1111, a second straight groove 1112, a chute 1113, a guide rod 112, a bolt 113, a guide plate 12, a guide wheel 121, a guide pillar 122, an insertion end 123, an arc-shaped raised strip 124, a positioning seat 13, a slot 131, a guide groove 132, a mounting hole 133, a support leg 134, a window frame 20, a window sash 30, a transmission rod 40 and a lower guide wheel assembly 50.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention. Moreover, it should be understood that the terms "first," "second," and the like as used in the description and in the claims do not denote any order, quantity, or importance, but rather are used to distinguish one element from another; the terms "a" or "an," and the like, also do not denote a limitation of quantity, but rather denote the presence of at least one; the terms "plurality," "plurality," and the like mean two or more. Unless otherwise specified, "front", "back", "lower", "upper", and the like are for convenience of description and are not limited to one position or one spatial orientation. The terms "mounted," "connected," "pivotally connected," and the like are to be construed broadly and may be connected directly or indirectly through intervening elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Example 1:

as shown in fig. 1-3, the present embodiment provides an upper guide wheel assembly 10 for a sliding door and window, including a sliding plate 11, a guide plate 12 and two positioning seats 13, where the sliding plate 11 is configured to be placed on an upper side frame of a window sash and slide along a length direction of the sliding plate, an upper surface of the guide plate 12 is provided with a rotatable guide wheel 121 configured to engage with a guide rail on a window frame and slide along a length direction of the sliding plate, a lower surface of the guide plate 12 and an upper surface of the sliding plate 11 are disposed opposite to each other, and a lower surface of the guide plate 12 is provided with a guide pillar 122, an upper surface of the sliding plate 11 is correspondingly provided with a sliding slot 111 for the guide pillar 122 to extend into and slide, the sliding slot 111 includes a first straight slot 1111 and a second straight slot 1112 disposed at an interval along the length direction of the sliding plate 11, and a chute 1113 communicating adjacent ends of the first straight slot 1111 and the second straight slot 1112, the first straight slot 1111 and the second straight slot 1112 are both parallel along the length direction, one of which is close to the inside the window, the other of the window, the sliding plate 13 is close to the window sash, the positioning seats 13 is configured to fixedly connect with the upper side frame of the sliding plate 12, and the sliding plate 13 is configured to restrict sliding plate 13 only to restrict sliding along a width direction of the sliding plate 11. In this embodiment, the guide portion on the upper surface of the guide plate 12 is a rotatable guide wheel 121, and in other embodiments, the guide portion may be another guide structure such as a slider that can be engaged with a guide rail on the window frame.

When the sliding plate is installed, the sliding plate 11 is firstly placed on the upper frame of the window sash, then the guide plate 12 is stacked above the sliding plate 11, then the two positioning seats 13 are respectively installed at two ends of the guide plate 12 and the sliding plate 11 and limit the two ends of the sliding plate, and then the positioning seats 13 penetrate through the screws from top to bottom and are fixedly connected to the frame of the window sash, so that the installation process is completed; during disassembly, only the screws of the positioning seats 13 need to be disassembled, and all parts can be disassembled easily, so that the disassembly and the assembly are convenient.

During operation, can realize in the window frame that the push-and-pull of length direction is led and spacing to the casement through guide pulley 121 on the deflector 12, when rotating the door and window handle and drive the transfer line through drive mechanism and move along the casement frame, can drive the sliding plate 11 and move along the length direction of casement frame, because the deflector 12 can only move along length direction under the spacing of guide rail on the window frame, through the direction cooperation of guide pillar 122 and spout 111, under the reaction force of deflector 12, can pass through sliding plate 11, positioning seat 13 drives the casement slant translation in the window frame, produce the displacement of width direction promptly, thereby can extrude joint strip and realize better sealed effect.

The last guide pulley subassembly 10 for translation door and window that this embodiment provided, only guide plate 12 and sliding plate 11 stack the setting from top to bottom on the direction of height, thereby make the last guide pulley subassembly 10 main part present the platyzization structure, occupation space is little on the direction of height, the both ends of guide plate 12 and sliding plate 11 are installed and spacing through a pair of positioning seat 13 jointly, the mount of having replaced traditional translation guide pulley subassembly, moreover, the structure is succinct, it is fixed to be connected through positioning seat 13 and casement frame, the loading and unloading is convenient.

In a preferred embodiment, the guide pillar 122 is a parallelogram slider, the first straight groove 1111, the second straight groove 1112 and the inclined groove 1113 are all groove bodies matching the parallelogram slider, wherein a part of each of the first straight groove 1111 and the second straight groove 1112 is overlapped and penetrated with the inclined groove 1113, so that the guide pillar 122 can slide from one end to the other end of the sliding groove 111 under the limit guiding effect of the sliding groove 111, and at least two side walls of the guide pillar 122 are always kept in close contact with the side walls of the sliding groove 111. The advantages of this design are: guide pillar 122 adopts the parallelogram slider, whole in-process that slides in spout 111, two at least lateral walls and the spout 111 lateral wall of guide pillar 122 keep hugging closely, thereby make guide pillar 122 can not take place to deflect and wrench movement relative to spout 111, it is steady smooth and easy to slide, thereby can improve the stationarity of casement translation, and, when guide pillar 122 slided to first straight flute 1111 or second straight flute 1112 in, casement extrusion adhesive tape can receive great reaction force, this design can avoid under reaction force guide pillar 122 relatively spout 111 to roll back and lead to the casement to be difficult to keep the location.

In a preferred embodiment, the number of the guide posts 122 and the sliding grooves 111 is two, wherein the guide posts 122 are spaced along the length direction of the guide plate 12, and the sliding grooves 111 are correspondingly spaced along the length direction of the sliding plate 11. The design has the advantages that: the guide columns 122 and the sliding grooves 111 are two and are arranged at intervals along the length direction, and therefore the translation stability and the stress balance of the window sash can be further improved.

In a preferred embodiment, the sliding groove 111 does not penetrate the sliding plate 11, so that the sliding groove 111 forms a containing cavity for accumulating oil. The design has the advantages that: in order to reduce the friction force of the guide plate 12 and the sliding plate 11 sliding relatively, lubricating oil can be arranged at the contact friction part of the guide column 122 and the sliding groove 111, and at the moment, the sliding groove 111 forms an accommodating cavity convenient for oil accumulation, so that the lubricating oil is not easy to be scattered and consumed, the friction force of the guide plate 12 and the sliding plate 11 sliding relatively is smaller, the sliding is smoother, the product can be kept in a smooth state for a long time, and the maintenance cost is reduced.

In a preferred embodiment, opposite ends of the two positioning seats 13 are respectively provided with a slot 131, two ends of the guide plate 12 are respectively provided with a plug end 123, the plug end 123 is inserted into the slot 131, and a width of the plug end 123 is smaller than a width of the slot 131 so that the positioning seat 13 and the guide plate 12 can relatively slide in a width direction, a height of the plug end 123 matches a height of the slot 131 so as to limit the positioning seat 13 and the guide plate 12 from relatively moving in a height direction, and the two positioning seats 13 are respectively abutted against two ends of the guide plate 12 so as to limit the positioning seat 13 and the guide plate 12 from relatively moving in a length direction. The advantages of this design are: the positioning seat 13 has reasonable and ingenious structural design, and can effectively limit the guide plate 12, so that the guide plate can not move in the length direction and the height direction relative to the positioning seat 13, and meanwhile, the guide plate can not freely slide in the width direction relative to the positioning seat 13.

As a preferred embodiment, two ends of the sliding plate 11 are respectively provided with two guiding rods 112 extending along the length direction thereof and juxtaposed to each other, the lower surface of the positioning seat 13 is provided with a guiding groove 132 matching with the two guiding rods 112, the two guiding rods 112 are respectively embedded into the corresponding guiding grooves 132, so that the sliding plate 11 is limited to slide along the length direction relative to the positioning seat 13, the positioning seat 13 is provided with a mounting hole 133 penetrating downwards for a screw to pass through and connect with the upper rim of the window sash, and the lower surface of the positioning seat 13 is provided with a support leg 134 for supporting against the upper rim of the window sash. The advantages of this design are: the positioning seat 13 has a reasonable and ingenious structural design, and can effectively limit the sliding plate 11, so that the sliding plate cannot move in the width direction and the height direction relative to the positioning seat 13, and the sliding plate cannot be prevented from freely sliding in the length direction relative to the positioning seat 13; simultaneously, set up stabilizer blade 134 for positioning seat 13 can play the supporting role through stabilizer blade 134 butt casement frame.

In a preferred embodiment, the guide portion includes two guide wheels 121 spaced apart and eccentrically disposed along a length direction of the guide plate 12, wherein one guide wheel 121 is close to a left side of the guide plate 12 for rolling contact with a left side surface of the upper guide rail of the window frame, and the other guide wheel 121 is close to a right side of the guide plate 12 for rolling contact with a right side surface of the upper guide rail of the window frame. The advantages of this design are: can guarantee that two leading wheels of deflector 12 can both smoothly slide in the window frame guide rail, can guarantee again that the window frame guide rail plays width direction's limiting displacement to two leading wheels of deflector 12 to guarantee that deflector 12 can drive the stable translation of casement under the effect of reaction force.

In a preferred embodiment, the lower surface of the sliding plate 11 is provided with a latch 113 for connecting a door window driving lever. The design has the advantages that: the sliding plates 11 of two adjacent upper guide wheel assemblies 10 do not need to be connected in series, connecting parts do not need to be arranged at two ends of each sliding plate 11, only the insertion holes matched with the bolts 113 need to be arranged on the transmission rods of the doors and windows, then the sliding plates 11 can be directly stacked on the transmission rods and can be connected with the transmission rods through the bolts 113 to transfer motion, the assembly is convenient, the transmission rods of the doors and windows do not need to be replaced, and the structural influence on the doors and windows is small.

In a preferred embodiment, a plurality of circular-arc-shaped convex strips 124 are arranged in parallel on the lower surface of the guide plate 12, and each circular-arc-shaped convex strip 124 extends in the width direction (may extend in the chute direction in other embodiments) by the contact of the circular-arc-shaped convex strip 124 with the slide plate 11. The advantages of this design are: the contact and support are realized by arranging the arc-shaped convex strips 124 on the contact surfaces of the guide plate 12 and the sliding plate 11, and each arc-shaped convex strip 124 extends along the width direction, so that the support capability is stronger and more balanced, the support is more stable, and the friction force of the guide plate 12 and the sliding plate 11 in relative sliding can be obviously reduced, so that the window sash can be more smoothly translated, meanwhile, the noise generated in relative sliding can be reduced, the silencing performance of the window sash translation is improved, the structure is simple, and the manufacturing cost is low.

Example 2:

as shown in fig. 4-5, a sliding door/window includes a window frame 20, a window sash 30, a handle, a transmission mechanism (omitted in the drawings), a transmission rod 40, a lower guide wheel assembly 50 for a sliding door/window, and an upper guide wheel assembly 10 for a sliding door/window in embodiment 1, where the number of the window sashes 30 is at least two, an upper side and a lower side of at least one of the window sashes 30 are slidably mounted in the window frame 20 through the at least one upper guide wheel assembly 10 and the at least one lower guide wheel assembly 50, a sealing rubber strip (omitted in the drawings) is provided on a side surface of the window sash 30 and/or the window frame 20, the transmission rod 40 is in transmission connection with the sliding plate 11, the handle is pivoted to the window sash 30 and can drive the transmission rod 40 to move along a frame of the window sash 30 through the transmission mechanism, so as to drive the sliding plate 11 to move along a length direction of the frame of the window sash 30, and further drive the window sash 30 to obliquely move in parallel in the window frame 20 through guiding cooperation of the guide post 122 and the sliding groove 111 so as to squeeze the sealing rubber strip. In this embodiment, the lower guide wheel assembly 50 may be a lower guide wheel assembly 50 having a translation function in the prior art, or a lower guide wheel assembly 50 formed by adaptively modifying the upper guide wheel assembly 10 in this patent may be used.

The translation door and window that this embodiment provided, casement 30's upside and downside are respectively through last guide pulley subassembly 10 and lower guide pulley subassembly 50 slidable mounting that has the translation function in window frame 20, can enough freely slide along length direction in window frame 20, can drive the synchronous motion of transfer line 40 about the handle drives through rotating when casement 30 closed position again, and then drive casement 30 translation through last guide pulley subassembly 10 and lower guide pulley subassembly 50 in step, with between the extrusion casement 30, the adhesive tape between casement 30 and the window frame 20, reduce the clearance and realize sealed effect, and adopt the last guide pulley subassembly 10 among embodiment 1, the space occupies littleer in the direction of height, be more favorable to reducing the clearance of casement 30 and window frame 20 in the direction of height, and it is more convenient to load and unload.

The above description is only a preferred embodiment of the application and is intended to illustrate the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the invention herein disclosed is not limited to the embodiments with the specified combination of the above-mentioned features, but also encompasses other embodiments with any combination of the above-mentioned features or their equivalents without departing from the scope of the invention as defined in the appended claims. For example, the above-mentioned features and technical features (but not limited to) having similar functions disclosed in this application are replaced with each other to form the embodiments.

Claims (10)

1. The utility model provides a translation is last guide pulley subassembly for door and window, a serial communication port, including the sliding plate, deflector and two positioning seats, the upper surface of deflector is equipped with and is used for cooperating the guide rail on the window frame and along its length direction gliding guide part, the lower surface of deflector and the upper surface of sliding plate set up relatively and one of them is equipped with the guide pillar, another correspondence is equipped with and supplies the guide pillar to stretch into gliding spout, the spout includes along length direction and the first straight flute and the second straight flute that set up at the interval, and the chute of the adjacent end of first straight flute and second straight flute of intercommunication, one of first straight flute and second straight flute is close to in the window, another is close to outside the window, the positioning seat is used for fixed connection casement frame, two positioning seats set up respectively at the both ends of deflector and carry out limit fit with it in order to restrict positioning seat and deflector can only follow width direction relative slip, and two positioning seats still carry out limit fit with the both ends of sliding plate respectively in order to restrict the relative positioning seat of sliding plate and can only slide along length direction.

2. The upper guide wheel assembly for the sliding door and window according to claim 1, wherein the guide post is a parallelogram slider, the first straight groove, the second straight groove and the inclined groove are groove bodies matched with the parallelogram slider, wherein parts of the first straight groove and the second straight groove are overlapped and communicated with the inclined groove, so that the guide post can slide from one end of the sliding groove to the other end under the limiting and guiding effect of the sliding groove, and at least two side walls of the guide post are tightly attached to the side walls of the sliding groove.

3. The upper guide wheel assembly for sliding doors and windows according to claim 1, wherein the number of the guide posts and the sliding grooves is at least two, wherein the guide posts are disposed on the lower surface of the guide plate and spaced along the length direction thereof, and the sliding grooves are correspondingly disposed on the upper surface of the sliding plate and spaced along the length direction thereof.

4. The upper guide wheel assembly for sliding doors and windows according to claim 3, wherein the sliding groove does not penetrate through the sliding plate, so that the sliding groove forms an accommodating cavity for accumulating oil.

5. The upper guide wheel assembly for sliding doors and windows according to claim 1, wherein the opposite ends of the two positioning seats are respectively provided with a slot, the two ends of the guide plate are respectively provided with an inserting end, the inserting end is inserted into the slot, the width of the inserting end is smaller than that of the slot so that the positioning seat and the guide plate can relatively slide along the width direction, the height of the inserting end is matched with that of the slot so that the positioning seat and the guide plate cannot relatively move along the height direction, and the two positioning seats are respectively abutted against the two ends of the guide plate so that the positioning seat and the guide plate cannot relatively move along the length direction.

6. The upper guide wheel assembly for the sliding door and window according to claim 1, wherein two ends of the sliding plate are respectively provided with two guide rods extending along the length direction thereof and arranged side by side, the lower surface of the positioning seat is provided with guide grooves matched with the two guide rods, the two guide rods are respectively embedded into the corresponding guide grooves, so that the sliding plate is limited to slide along the length direction relative to the positioning seat, the positioning seat is provided with a mounting hole penetrating downwards for a screw to pass through and connect with the upper frame of the window sash, and the lower surface of the positioning seat is provided with a support leg for supporting against the upper frame of the window sash.

7. The upper guide wheel assembly for sliding windows and doors according to claim 1, wherein the guide portion is at least two rotatable guide wheels spaced apart along the length of the guide plate, at least one of the guide wheels is adjacent to the left side of the guide plate for rolling contact with the left side surface of the guide rail on the window frame, and at least one of the guide wheels is adjacent to the right side of the guide plate for rolling contact with the right side surface of the guide rail on the window frame.

8. The upper guide wheel assembly for a sliding door or window according to claim 1, wherein the lower surface of the sliding plate is provided with a latch for connecting a door or window transmission rod.

9. The upper guide wheel assembly for a sliding door or window according to claim 1, wherein at least one of the lower surface of the guide plate and the upper surface of the sliding plate is provided with a plurality of circular arc shaped protrusions at intervals, and abuts against the other through the circular arc shaped protrusions, each circular arc shaped protrusion extending in the width direction or in the chute direction.

10. A sliding door and window is characterized by comprising a window frame, window sashes, handles, a transmission mechanism, a transmission rod, a lower guide wheel assembly for the sliding door and window and the upper guide wheel assembly for the sliding door and window as claimed in any one of claims 1 to 9, wherein the number of the window sashes is at least two, the upper side and the lower side of at least one of the window sashes are respectively slidably mounted in the window frame through at least one upper guide wheel assembly and at least one lower guide wheel assembly, sealing rubber strips are arranged on the side surfaces of the window sashes and/or the window frame, the transmission rod is in transmission connection with the sliding plate, the handles are pivoted on the window sashes and can drive the transmission rod to move along the window sash frame through the transmission mechanism, so that the sliding plate is driven to move along the length direction of the window sash frame, and further, the window sashes are driven to obliquely translate in the window frame through the guide matching of the guide columns and the sliding grooves so as to extrude the sealing rubber strips.

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