CN213980276U - Handle subassembly and door and window system - Google Patents

Abstract

The utility model relates to a handle subassembly and door and window system. Handle subassembly includes: the handle seat cushion is provided with an adjusting hole penetrating through the handle seat cushion; the telescopic structure comprises a first telescopic part and a second telescopic part which are mutually connected, the first telescopic part is connected with the handle seat cushion, one end of the second telescopic part, which is far away from the first telescopic part, is provided with a tail end hole, and the tail end hole is communicated with the adjusting hole; and the adjusting piece penetrates through the adjusting hole and the tail end hole, and can rotate relative to the telescopic structure, so that the size of the telescopic structure in the radial direction of the adjusting piece is increased. Above-mentioned handle subassembly sets up extending structure and section bar joint, can make the fixed more stable between handle subassembly and the section bar, and the handle subassembly is difficult for rocking and breaks away from the section bar even.

Description

Handle subassembly and door and window system

Technical Field

The utility model relates to a door and window device field especially relates to a handle subassembly and door and window system.

Background

In the door and window system, the handle is rotationally connected with the section bar, and the driver is arranged in the section bar. When the lock is used, the handle is rotated, and the lock is opened or closed through transmission between the handle and the driver. Then the handle is pulled to drive the section bar to rotate, so that the door and window are opened and closed.

However, in the conventional door and window system, turning or pulling the handle easily causes the handle to shake or even separate from the profile.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a handle assembly and a door and window system aiming at the problem that the handle is easy to shake or even separate from the profile in the conventional door and window system.

A handle assembly, comprising:

the handle seat cushion is provided with an adjusting hole penetrating through the handle seat cushion;

the telescopic structure comprises a first telescopic part and a second telescopic part which are mutually connected, the first telescopic part is connected with the handle seat cushion, one end of the second telescopic part, which is far away from the first telescopic part, is provided with a tail end hole, and the tail end hole is communicated with the adjusting hole; and

the adjusting piece penetrates through the adjusting hole and the tail end hole, and the adjusting piece can rotate relative to the telescopic structure, so that the size of the telescopic structure in the radial direction of the adjusting piece is increased.

In one embodiment, when the adjusting piece rotates relative to the telescopic structure, the telescopic structure increases in size in the axial direction of the adjusting piece; and/or

When the adjusting piece rotates relative to the telescopic structure, the included angle between the first telescopic part and the second telescopic part is reduced.

In one embodiment, when the adjusting member rotates in a first direction relative to the telescopic structure, the telescopic structure increases in size in a radial direction of the adjusting member; when the adjusting piece rotates relative to the telescopic structure along a second direction, the size of the telescopic structure in the radial direction of the adjusting piece is reduced; the first direction and the second direction are two opposite directions in the circumferential direction of the adjusting piece.

In one embodiment, when the adjusting member rotates relative to the telescopic structure, the adjusting member drives the end of the second telescopic part, at which the end hole is opened, to move towards the direction close to the handle seat cushion.

In one embodiment, the adjustment member is threadably connected to the tip bore; or

The adjusting piece is in interference fit with the tail end hole.

In one embodiment, the telescopic structure is an integrally formed hollow structure, the telescopic structure has a boundary line, the telescopic structure is divided along the boundary line to form the first telescopic part and the second telescopic part, and the telescopic structure is foldable at the boundary line.

In one embodiment, the handle seat further comprises a handle seat, an accommodating cavity is formed in the handle seat, the handle seat cushion is located in the accommodating cavity, and the telescopic structure extends out of the accommodating cavity; and/or

The handle subassembly still includes the handle seat, the handle seat is kept away from the counter bore has been seted up to one side of handle seatpad, the regulating part is the screw, the regulating part includes screw cap portion and screw rod portion, screw rod portion wears to establish in proper order the handle seat the handle seatpad reaches extending structure, screw cap portion is located in the counter bore, just the butt of nut portion the handle seat.

In one embodiment, the handle seat further comprises a stop block, the stop block is arranged on one side, away from the handle seat cushion, of the handle seat, and the stop block can rotate relative to the handle seat to cover or expose the counter bore.

In one embodiment, the number of the telescopic structures is two, and the two telescopic structures are arranged on the same side of the handle seat cushion at intervals.

The utility model provides a door and window system, includes section bar and above-mentioned arbitrary embodiment the handle subassembly, the fixed slot has been seted up to the section bar, extending structure is located in the fixed slot, just extending structure in the radial ascending size increase of regulating part extremely extending structure butt the internal face of fixed slot, with will the handle subassembly is fixed in on the section bar.

Above-mentioned handle subassembly, when installing on the section bar of door and window system, extending structure is located the fixed slot of section bar. The regulating part is relative telescopic structure rotates to make telescopic structure in the ascending size increase in the radial of regulating part, and then make the internal face of telescopic structure butt fixed slot, be fixed in the handle subassembly on the section bar. Set up the internal face of extending structure butt fixed slot, can make the fixed more stable between handle subassembly and the section bar, the handle subassembly is difficult for rocking and breaks away from the section bar even.

Drawings

Fig. 1 is a schematic structural view of a handle assembly in some embodiments of the present application;

fig. 2 is an exploded view of the handle assembly shown in fig. 1;

FIG. 3 is a schematic view of an adjustment member of some embodiments of the present application providing an increase in the radial dimension of a telescoping structure;

fig. 4 is a schematic view of a handle seat and telescoping structure in some embodiments of the present application;

FIG. 5 is a schematic view of the telescoping arrangement of FIG. 4 shown in increased radial dimension;

FIG. 6 is a schematic view of a telescoping structure extending into a profile in some embodiments of the present application;

fig. 7 is a schematic view of a telescoping abutment profile according to some embodiments of the present application.

Wherein, 100, handle subassembly; 110. a telescopic structure; 111. a tip aperture; 112. a boundary line; 113. a first telescopic part; 114. a second telescopic part; 120. an adjustment member; 121. a nut portion; 122. a screw section; 130. a handle seat cushion; 131. a counter bore; 132. an adjustment hole; 140. a handle seat; 141. an accommodating chamber; 150. a handle is held; 151. a rotating part; 152. a connecting portion; 160. a stopper; 200. a door and window system; 210. a section bar; 211. a transmission cavity; 212. and fixing the grooves.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "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, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

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," and "fixed" are to be construed broadly and may, 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 meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. 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.

Referring to fig. 1, 2, and 3, fig. 1 shows a schematic view of a handle assembly 100 in some embodiments of the present disclosure, fig. 2 shows an exploded schematic view of the handle assembly 100 shown in fig. 1, and fig. 3 shows an enlarged dimension of a telescoping structure 110 in a radial direction of an adjustment member 120 by the adjustment member 120 in some embodiments of the present disclosure. Handle subassembly 100 includes extending structure 110 and regulating part 120, and extending structure 110 is worn to establish by regulating part 120, and regulating part 120 can rotate relative extending structure 110 to change extending structure 110 in the radial ascending size of regulating part 120. When handle subassembly 100 installs on the section bar, rotate regulating part 120, make extending structure 110 in the radial ascending size increase of regulating part 120, extending structure 110 and section bar joint can make the fixed more stable between handle subassembly 100 and the section bar, and handle subassembly 100 is difficult to the section bar relatively and rocks.

Specifically, in some embodiments, handle subassembly 100 still includes handle seatpad 130, has seted up the regulation hole 132 that runs through handle seatpad 130 on the handle seatpad 130. The extending structure 110 is arranged on the handle seat cushion 130, the end hole 111 is arranged at one end of the extending structure 110 far away from the handle seat cushion 130, the end hole 111 is communicated with the adjusting hole 132, and the end hole 111 and the adjusting hole 132 are coaxially arranged. The adjusting element 120 is inserted through the adjusting hole 132 and the end hole 111, that is, the adjusting element 120 is inserted through the handle seat 130 and the telescopic structure 110. The adjusting member 120 is rotatably engaged with the end hole 111, that is, the adjusting member 120 can rotate relative to the telescopic structure 110, so that the telescopic structure 110 is increased in size in the radial direction of the adjusting member 120.

Of course, the manner of rotating the adjusting member 120 relative to the telescopic structure 110 to change the radial dimension of the telescopic structure 110 in the adjusting member 120 is not limited, for example, in some embodiments, when the adjusting member 120 is rotatably engaged with the end hole 111, that is, when the adjusting member 120 rotates relative to the end of the telescopic structure 110 far away from the end of the handling seat cushion 130, the adjusting member 120 can drive the end of the telescopic structure 110 far away from the end of the handling seat cushion 130 to move toward the direction close to the handling seat cushion 130, so that the two ends of the telescopic structure 110 press the portion of the telescopic structure 110 between the two ends, and further deform the telescopic structure 110, thereby changing the radial dimension of the telescopic structure 110 in the adjusting member 120.

The way of the adjusting member 120 rotatably engaging with the end hole 111 is not limited, as long as the adjusting member 120 can drive the end of the telescopic structure 110 far away from the handle seat cushion 130 to move when rotating. For example, in some embodiments, the adjusting member 120 is a screw, the outer circumferential surface of the adjusting member 120 is provided with an external thread, the distal hole 111 is a threaded hole, the inner circumferential surface of the distal hole 111 is provided with an internal thread, and the adjusting member 120 is threadedly coupled to the distal hole 111. Thus, when the adjustment member 120 is rotated relative to the telescoping structure 110, the threaded engagement between the adjustment member 120 and the tip bore 111 can cause the end of the telescoping structure 110 to move.

It will be appreciated that when the adjustment member 120 is threadably coupled to the tip bore 111, the direction of rotation of the adjustment member 120 relative to the telescoping structure 110 is different, and the direction of movement of the end of the telescoping structure 110 is also different. For example, in some embodiments, when the adjusting member 120 rotates relative to the telescopic structure 110 in the first direction, the end of the telescopic structure 110 far from the handle seat 140 moves toward the handle seat 130, so that the size of the telescopic structure 110 in the radial direction of the adjusting member 120 increases. When the adjusting member 120 rotates in the second direction relative to the telescopic structure 110, the end of the telescopic structure 110 far from the handle seat 140 moves towards the direction far from the handle seat cushion 130, so that the size of the telescopic structure 110 in the radial direction of the adjusting member 120 is reduced. The first direction and the second direction are two opposite directions in the circumferential direction of the adjusting member 120. For example, in some embodiments, the first direction is a clockwise rotation of the adjustment member 120 and the second direction is a counterclockwise rotation of the adjustment member 120.

It should be noted that in other embodiments, the adjustment member 120 may also have an interference fit with the tip aperture 111. At this time, after the adjusting piece 120 penetrates the handle seat cushion 130 from the adjusting hole 132 into the telescopic structure 110, the adjusting piece 120 is rotated to rotate the end of the adjusting piece 120 into the end hole 111, and when the adjusting piece 120 penetrates the telescopic structure 110 through the end hole 111, the inner circumferential surface of the end hole 111 is also formed into an internal thread by the thread of the adjusting piece 120.

Further, the deformation mode of the telescopic structure 110 is not limited, as long as the movement of the end of the telescopic structure 110 can deform the telescopic structure 110, and further change the radial dimension of the telescopic structure 110 in the adjusting member 120. Specifically, referring to fig. 3, 4 and 5 together, fig. 5 is a schematic view of the telescopic structure 110 shown in fig. 4 after the size of the adjusting member 120 in the radial direction is increased. In some embodiments, the telescopic structure 110 is a hollow structure formed integrally, the telescopic structure 110 has a dividing line 112, the dividing line 112 forms a circle, and the center of the circle formed by the dividing line 112 is located on the axis of the adjusting member 120. The telescopic structure 110 is divided along a boundary 112 to form a first telescopic portion 113 and a second telescopic portion 114, and the telescopic structure 110 is foldable at the boundary 112. First telescoping portion 113 is connected to handle seat cushion 130, and tip hole 111 opens at the end of second telescoping portion 114 that is far from first telescoping portion 113.

It can be understood that, at this time, the movement of the end of the telescopic structure 110 far from the end of the handling seat 130 toward or away from the handling seat 130 can press or stretch the portion of the telescopic structure 110 between the two ends, thereby changing the folding degree of the telescopic structure 110 at the boundary 112, i.e., changing the included angle between the first telescopic portion 113 and the second telescopic portion 114, so as to change the radial dimension of the telescopic structure 110 in the adjusting member 120. For example, in some embodiments, when the end of the telescopic structure 110 far from the end of the handling seat cushion 130 moves toward the direction close to the handling seat cushion 130, the two ends of the telescopic structure 110 compress, so that the dimension of the telescopic structure 110 in the axial direction of the adjusting member 120 decreases, and the included angle between the first telescopic part 113 and the second telescopic part 114 decreases, that is, the telescopic structure 110 folds outward at the boundary line 112, so that the dimension of the telescopic structure 110 in the radial direction of the adjusting member 120 increases. When the end of the telescopic structure 110 far from the end of the handling seat cushion 130 moves towards the direction far from the handling seat cushion 130, the two ends of the telescopic structure 110 stretch, so that the size of the telescopic structure 110 in the axial direction of the adjusting member 120 increases, and the included angle between the first telescopic part 113 and the second telescopic part 114 decreases, that is, the telescopic structure 110 contracts inwards at the boundary 112, so that the size of the telescopic structure 110 in the radial direction of the adjusting member 120 decreases.

Referring to fig. 1 and fig. 2 again, in some embodiments, the handle assembly 100 further includes a handle base 140, the handle base 140 is disposed at an end of the handle seat cushion 130 away from the telescopic structure 110, a receiving cavity 141 is formed on a surface of the handle base 140 facing the handle seat cushion 130, the handle seat cushion 130 is embedded in the receiving cavity 141, and the telescopic structure 110 extends out of the receiving cavity 141. Set up handle seat 140, can cover handle seatpad 130, play the guard action to handle seatpad 130. Meanwhile, the handle seat 140, the handle seat cushion 130 and the telescopic structure 110 are integrally formed into an independent structure, when the telescopic structure 110 is damaged, only the handle seat cushion 130 and the telescopic structure 110 need to be replaced, the handle seat 140 does not need to be replaced, and the maintenance cost of the handle assembly 100 is reduced.

Referring to fig. 2 and 3 together, in some embodiments, the adjusting member 120 is a screw, the adjusting member 120 includes a nut portion 121 and a screw portion 122, and the nut portion 121 has a radial dimension larger than that of the screw portion 122. The handle seat cushion 130 is provided with a counter bore 131 on the surface deviating from the telescopic structure 110, the radial dimension of the counter bore 131 is larger than that of the adjusting hole 132, and the radial dimension of the counter bore 131 is matched with that of the nut part 121. The screw portion 122 penetrates through the handle seat cushion 130 and the telescopic structure 110, the nut portion 121 is located in the counter bore 131, and the nut portion 121 abuts against the handle seat cushion 130. By providing the counterbore 131 to accommodate the nut portion 121, the handle assembly 100 is prevented from being aesthetically impaired by the protrusion of the nut portion 121 out of the handle seat 130. Of course, in other embodiments, when the handle assembly 100 is provided with the handle seat 140, the counter bore 131 may also be open on the side of the handle seat 140 facing away from the handle seat cushion 130, the counter bore 131 communicating with the adjustment bore 132. At this time, the screw portion 122 is sequentially inserted through the handle seat 140, the handle seat 130 and the telescopic structure 110, the nut portion 121 is located in the counterbore 131, and the nut portion 121 abuts against the handle seat 140.

It can be understood that, during the installation process, the adjusting element 120 is first inserted into the counterbore 131 from the side of the handle seat 140 facing away from the handle seat cushion 130, and the screw portion 122 is sequentially inserted through the counterbore 131 and the adjusting hole 132 to reach the end hole 111. The adjusting piece 120 is rotated so that the adjusting piece 120 is screw-engaged with the tip hole 111, the tip hole 111 is not moved and the end of the adjusting piece 120 enters the tip hole 111. Continuing to rotate the adjuster 120 causes the screw portion 122 to penetrate the tip aperture 111, and when the adjuster 120 is rotated until the nut portion 121 enters the counterbore 131 and abuts the handle seat 140, the adjuster 120 no longer moves axially. At this time, when the adjusting member 120 is further rotated, the adjusting member 120 is engaged with the screw thread of the end hole 111, which drives the end of the telescopic structure 110 far from the end of the handle seat 130 to move, so as to change the dimension of the telescopic structure 110 in the radial direction of the adjusting member 120.

Of course, the number of the telescopic structures 110 is not limited, for example, the telescopic structures 110 may be provided with two, three, four or more, the plurality of telescopic structures 110 are arranged at intervals on the same side of the handle seat cushion 130, and when the handle assembly 100 is installed on the profile, the plurality of telescopic structures 110 respectively abut against the profile, so that the handle assembly 100 and the profile are more stably fixed.

Specifically, referring to fig. 1 and 2, in some embodiments, the handle assembly 100 further includes a handle 150, the handle 150 includes a rotating portion 151 and a connecting portion 152, and the rotating portion 151 is fixedly connected to the connecting portion 152. After the handle assembly 100 is installed, the rotating portion 151 is used for a user to rotate or pull to achieve opening and closing actions of the door and window system, and the connecting portion 152 is used for connecting an actuator of the door and window system, and locking or unlocking of the door and window system is achieved through transmission matching of the actuator. Connecting portion 152 wears to establish in proper order and handle seat 140 and handle seatpad 130, and extending structure 110 is provided with two, and two extending structure 110 set up respectively in the relative both sides of connecting portion 152 to fix handle subassembly 100 from the relative both sides of connecting portion 152, make the fixed more stable between handle subassembly 100 and the section bar.

Further, in some embodiments, the handle assembly 100 further includes a stop 160, the stop 160 is disposed on the handle bar 150, and the stop 160 is rotatably connected to the connecting portion 152. When the connecting portion 152 penetrates through the handle seat 140 and the handle seat cushion 130, the stopper 160 is located on a side of the handle seat 140 away from the handle seat cushion 130, and the stopper 160 can rotate relative to the handle seat 140. Referring also to fig. 3, when the stop 160 rotates relative to the handle base 140 until the stop 160 covers the handle base 140, the stop 160 can cover the counterbore 131 so that the counterbore 131 and the nut portion 121 disposed in the counterbore 131 do not expose the handle assembly 100, thereby ensuring the aesthetic appearance of the handle assembly 100. When the adjusting member 120 needs to be operated, the stopper 160 rotates relative to the handle base 140 until the extending direction of the stopper 160 intersects with the extending direction of the handle base 140, and the stopper 160 exposes the counter bore 131, so that the user can rotate the adjusting member 120.

Referring to fig. 6 and 7, a door and window system 200 includes a profile 210 and the handle assembly 100 of any of the embodiments described above. Fig. 6 shows a schematic view of the telescoping structure 110 extending into the profile 210 in some embodiments of the present application, and fig. 7 shows a schematic view of the telescoping structure 110 abutting the profile 210 to secure the handle assembly 100 to the profile 210 in some embodiments of the present application. In particular, the profile 210 may be a sector of the window and door system 200, for example, the profile 210 may be a door leaf or a window sash. The section bar 210 is provided with a transmission cavity 211 and a fixing groove 212, and the transmission cavity 211 is used for installing a driver (not shown) of the window and door system 200 to realize locking of the window and door system 200.

When the handle assembly 100 is installed, the adjusting element 120 is inserted into the profile 210 from the fastening groove 212 until the adjusting element 120 penetrates the fastening groove 212 and partially extends into the transmission chamber 211, and when the handle base 140 abuts against the outer surface of the profile 210, the telescopic assembly is located in the fastening groove 212. The adjusting piece 120 is rotated from one side of the handle seat 140, which is away from the profile 210, by using a tool such as a screwdriver, the adjusting piece 120 is in threaded fit with the terminal hole 111, so that the end of the telescopic structure 110, which is far away from one end of the handle seat 140, moves towards the direction close to the handle seat 140, and further the radial size of the telescopic structure 110 on the adjusting piece 120 is increased, as shown in fig. 7, when the adjusting piece 120 is rotated to the position where the telescopic structure 110 abuts against the inner wall surface of the fixing groove 212, the telescopic structure 110 is clamped with the profile 210, and the handle assembly 100 is fixed on the profile 210. When the handling assembly 100 needs to be detached from the profile 210, the adjusting member 120 is only required to rotate in the opposite direction, and the adjusting member 120 drives the end portion of the telescopic structure 110 far away from the end of the handle base 140 to move in the direction far away from the end of the handle base 140, so that the radial dimension of the telescopic structure 110 on the adjusting member 120 is reduced, as shown in fig. 6, the telescopic structure 110 is no longer clamped with the profile 210, and the handling assembly 100 can be detached from the profile 210.

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 represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A handle assembly, comprising:

the handle seat cushion is provided with an adjusting hole penetrating through the handle seat cushion;

the telescopic structure comprises a first telescopic part and a second telescopic part which are mutually connected, the first telescopic part is connected with the handle seat cushion, one end of the second telescopic part, which is far away from the first telescopic part, is provided with a tail end hole, and the tail end hole is communicated with the adjusting hole; and

the adjusting piece penetrates through the adjusting hole and the tail end hole, and the adjusting piece can rotate relative to the telescopic structure, so that the size of the telescopic structure in the radial direction of the adjusting piece is increased.

2. The handle assembly of claim 1, wherein the telescoping structure decreases in size in an axial direction of the adjustment member when the adjustment member is rotated relative to the telescoping structure; and/or

When the adjusting piece rotates relative to the telescopic structure, the included angle between the first telescopic part and the second telescopic part is reduced.

3. The handle assembly of claim 1, wherein the telescoping structure increases in size in a radial direction of the adjustment member when the adjustment member is rotated in a first direction relative to the telescoping structure; when the adjusting piece rotates relative to the telescopic structure along a second direction, the size of the telescopic structure in the radial direction of the adjusting piece is reduced; the first direction and the second direction are two opposite directions in the circumferential direction of the adjusting piece.

4. The handle assembly of claim 1, wherein the adjustment member urges the end of the second telescoping portion that defines the distal end aperture toward a direction proximate the handle seat cushion when the adjustment member is rotated relative to the telescoping structure.

5. The handle assembly of any one of claims 1-4, wherein the adjustment member is threadably coupled to the end bore; or

The adjusting piece is in interference fit with the tail end hole.

6. The handle assembly of any one of claims 1-4, wherein the telescoping structure is an integrally formed hollow structure having a dividing line along which the telescoping structure is divided to form the first telescoping portion and the second telescoping portion, and the telescoping structure is foldable at the dividing line.

7. The handle assembly according to any one of claims 1 to 4, further comprising a handle base, wherein the handle base is provided with an accommodating cavity, the handle seat cushion is located in the accommodating cavity, and the telescopic structure extends out of the accommodating cavity; and/or

The handle subassembly still includes the handle seat, the handle seat is kept away from the counter bore has been seted up to one side of handle seatpad, the regulating part is the screw, the regulating part includes screw cap portion and screw rod portion, screw rod portion wears to establish in proper order the handle seat the handle seatpad reaches extending structure, screw cap portion is located in the counter bore, just the butt of nut portion the handle seat.

8. The handle assembly of claim 7, further comprising a stop disposed on a side of the handle base opposite the handle seat pad, the stop being rotatable relative to the handle base to cover or expose the counterbore.

9. The handle assembly of any one of claims 1-4, wherein there are two telescoping structures, the two telescoping structures spaced apart on a same side of the handle seat cushion.

10. A door and window system comprising a profile and the handle assembly of any of claims 1-9, wherein the profile defines a securing slot, the extension structure is positioned within the securing slot, and the extension structure increases in size in a radial direction of the adjustment member until the extension structure abuts against an inner wall surface of the securing slot to secure the handle assembly to the profile.

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