Buffer assembly capable of feeding back adjusting resistance and door and window structure

Abstract

The utility model discloses a buffer assembly capable of feeding back and adjusting resistance and a door and window structure. The buffer assembly comprises a shell with a hollow inner cavity with two open ends; the piston rod is movably arranged in the hollow inner cavity in a penetrating mode, a piston head is matched with the inner wall of the hollow inner cavity, and a rod part protrudes out of one end of the shell; the base is connected to the other end of the shell, a guide column extends out of the base towards the interior of the hollow inner cavity, and exhaust holes are formed in the surface of the base; the guide column is movably sleeved with the cover plate, an exhaust gap is formed between the outer wall of the cover plate and the inner wall of the hollow inner cavity, and when the cover plate abuts against the surface of the base, the cover plate partially covers the exhaust hole; the first elastic piece is arranged on the guide column in a sleeving mode, located between the surface of the base and the cover plate and used for resetting the cover plate; the second elastic piece is arranged between the cover plate and the piston head and used for resetting the piston rod. According to the buffer assembly, the resistance can be changed according to different window sash movement conditions, so that the push-and-pull hand feeling of doors and windows is more comfortable.

Description

TECHNICAL FIELD

[0001] The utility model relates to door and window equipment field especially relates to a feedback regulation buffer assembly and door and window structure of resistance. BACKGROUND

[0002] In the use of sliding door and window, the movement speed of the fan depends on the initial speed given by the user, in order to improve the user's use experience, and safety, in the closing process of the fan, the buffer device is added.

[0003] The existing door and window buffer is installed on the frame or the fan, and the preset buffer resistance is mostly, whether the closing speed of the fan is fast or slow, in the process of fan closing, the buffer will be effective to give the set buffer resistance, and the fan is stably closed. This buffering mode will have to overcome the preset resistance of the buffer in the process of low-speed operation of the door fan, which is too single. UTILITY MODEL CONTENT

[0004] The utility model provides a feedback regulation buffer assembly and door and window structure of resistance to improve the use feeling of door and window sliding.

[0005] In order to realize the above technical purpose, the utility model adopts the following technical scheme:

[0006] The first aspect of the utility model technical scheme provides a feedback regulation buffer assembly of resistance, comprising:

[0007] The shell has a hollow inner cavity with two ends open;

[0008] The piston rod is movably arranged in the hollow inner cavity, and the piston head of the piston rod is matched with the inner wall of the hollow inner cavity, and the rod part of the piston rod protrudes from one end of the shell;

[0009] The base is connected to the other end of the shell, and a guide column extends from the inside of the hollow inner cavity on the base, and the surface of the base is provided with an exhaust hole;

[0010] The cover plate is movably sleeved on the guide column, and the exhaust gap is formed between the outer wall of the cover plate and the inner wall of the hollow inner cavity, and when the cover plate abuts against the surface of the base, part of the exhaust hole is covered;

[0011] The first elastic member is sleeved on the guide column and located between the surface of the base and the cover plate, so as to reset the cover plate;

[0012] The second elastic member is arranged between the cover plate and the piston head, so as to reset the piston rod.

[0013] Preferably, a limiting assembly is arranged on the end face of the guide column to limit the cover plate in the axial direction of the guide column.

[0014] Preferably, the limiting assembly comprises:

[0015] A limiting piece, a surface of the limiting piece is inwardly recessed to form a recess, a bottom of the recess is provided with a through hole penetrating through the limiting piece, the recess is engaged with the end face of the guide column, and a connecting hole is arranged at a position corresponding to the through hole on the guide column;

[0016] A connecting piece is arranged in the through hole and connected with the connecting hole.

[0017] Preferably, a sealing ring is arranged on the outer wall of the piston head to block the gap between the outer wall of the piston head and the inner wall of the hollow inner cavity.

[0018] Preferably, a limiting step is arranged at an end of the hollow inner cavity away from the base, and the limiting step is abutted or separated from the piston head to axially limit the piston rod.

[0019] Preferably, a plurality of auxiliary air holes are arranged on the outer wall of the shell, and a detachable plug is arranged in each of the plurality of auxiliary air holes to adjust the size of the exhaust volume.

[0020] Preferably, the plurality of auxiliary air holes are arranged at an end of the shell close to the base and are uniformly distributed along the circumferential direction of the shell.

[0021] Preferably, the first elastic piece and the second elastic piece are both springs.

[0022] Preferably, the base is fixedly connected with the shell, or the base is detachably connected with the shell.

[0023] In the second aspect of the technical scheme of the utility model, a door and window structure is provided, comprising the buffer assembly.

[0024] Compared with the prior art, the utility model has the following beneficial effects:

[0025] The buffer assembly of the utility model can change the size of the resistance according to different window sash movement conditions, so that a more comfortable resistance can be obtained in use according to different conditions, and the feeling of pushing and pulling the door and window is more comfortable. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 A three-dimensional exploded structure schematic view of a buffer assembly with feedback adjusted resistance provided by the first embodiment of the utility model;

[0027] Figure 2 A two-dimensional cross-sectional structure schematic view of a buffer assembly with feedback adjusted resistance provided by the first embodiment of the utility model;

[0028] Figure 3 A three-dimensional exploded structure schematic view of a buffer assembly with feedback adjusted resistance provided by the second embodiment of the utility model.

[0029] In the drawings, various reference signs represent:

[0030] 1, shell; 101, hollow inner cavity; 102, limiting step; 110, exhaust gap; 103, auxiliary air hole; 104, plug;

[0031] 2, piston rod; 21, piston head; 22, rod part; 23, sealing ring;

[0032] 3, base; 31, guide column; 32, exhaust hole; 33, limiting piece; 34, connecting piece; 331, recessed part; 332, through hole; 311, connecting hole;

[0033] 4, cover plate; 5, first elastic piece; 6, second elastic piece. DETAILED DESCRIPTION

[0034] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme in the utility model embodiments will be described clearly and completely in combination with the drawings in the utility model embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0035] The utility model embodiment is aimed at providing a door and window buffer assembly with internal feedback adjusted resistance, which is installed on a window frame or a window sash, to solve the problem of poor use experience caused by constant resistance of the buffer and the buffer assembly in the prior art.

[0036] First embodiment:

[0037] As Figure 1 and Figure 2As shown, the feedback adjusting resistance buffer assembly provided by the first embodiment of the utility model, including shell 1, piston rod 2, base 3, cover plate 4, first elastic piece 5 and second elastic piece 6. Among them, the hollow setting of shell 1, base 3 is installed in one end of shell 1, and is provided with exhaust hole 32 for exhaust. The piston rod 2 and cover plate 4 are all movably arranged in the hollow inner cavity of shell 1, and the first elastic piece 5 and the second elastic piece 6 are used for elastic reset to both, thereby forming a gas spring structure.

[0038] Specifically, in the embodiment, the shell 1 is cylindrical structure, and the shell 1 has a hollow inner cavity 101 with two ends open. And, the opening of one end of the shell 1 is smaller, and the opening of the other end is larger, thereby forming a limiting step 102 at the smaller opening end to axially limit the piston rod 2 (described in detail below).

[0039] As Figure 1 shown, the piston rod 2 includes a piston head 21 and a rod portion 22. The piston rod 2 is movably arranged in the hollow inner cavity 101, and the piston head 21 is matched with the inner wall of the hollow inner cavity 101, and the rod portion 22 protrudes out of the smaller opening end of the shell 1. Preferably, a sealing ring 23 is sleeved on the outer wall of the piston head 21 to block the gap between the outer wall of the piston head 21 and the inner wall of the hollow inner cavity 101, thereby improving the air compression effect when the piston head 21 moves in the hollow inner cavity 101. And, as Figure 2 shown, the right end face of the piston head 21 abuts against the limiting step 102, thereby axially limiting the piston rod 2 to avoid the piston rod 2 from being separated from the shell 1.

[0040] As Figure 1 shown, the base 3 is connected to the other end (i.e. the left end in Figure 1 ) of the shell 1, and the center of the base 1 extends a guide column 31 towards the inside of the hollow inner cavity 101, and the surface of the base 1 is provided with an exhaust hole 32. In the embodiment, the base 3 is fixed to the other end of the shell 1 by welding, and in other embodiments, the base 3 can be connected to the shell 1 by detachable means, such as buckle connection, screw connection, etc.

[0041] As Figure 2As shown, the cover plate 4 is movably fitted onto the guide post 31, thereby using the guide post 31 to guide the movement of the cover plate 4 and prevent the cover plate 4 from shifting during movement. Furthermore, the size of the cover plate 4 is smaller than the inner diameter of the hollow cavity 101, thus forming an exhaust gap 110 between the outer wall of the cover plate and the inner wall of the hollow cavity. Air can then flow through this exhaust gap 110 to the exhaust hole 32 and be discharged outside the hollow cavity 101. In addition, it should be understood that when the cover plate 4 abuts against the inner surface of the base 3, it partially covers the exhaust hole 32 (i.e., it does not completely cover the exhaust hole 32), leaving a small gap for gas to escape and preventing it from becoming stuck.

[0042] like Figure 2 As shown, the first elastic element 5 is sleeved on the guide post 31 and located between the inner surface of the base 3 and the cover plate 4 for resetting the cover plate 4. Similarly, the second elastic element 6 is disposed between the cover plate 4 and the piston head 21 for resetting the piston rod 2. Specifically, when the piston rod 2 is forced to move to the left, the air is compressed and the second elastic element 6 is also compressed, thereby acting on the cover plate 4, causing the cover plate 4 to move to the left, and thus compressing the first elastic element 5; when the piston rod 2 is no longer under force, the elastic force of the second elastic element 6 acts on the piston rod 2 to help the piston rod 2 reset; correspondingly, the elastic force of the first elastic element 5 acts on the cover plate 4 to help the cover plate 4 reset. In this embodiment, preferably, both the first elastic element 5 and the second elastic element 6 are springs (other elastic structures can also be used in other embodiments), and the elastic force of the first elastic element 5 is less than the elastic force of the second elastic element 6, so as to ensure that the cover plate 4 can be compressed relatively easily and that the piston rod 2 can be quickly reset.

[0043] Understandably, when air is compressed slowly, the compression of the cover plate 4 is relatively small, allowing the air to escape smoothly through the exhaust port 32, thus reducing the effect of the gas spring. When air is compressed rapidly, the compression of the cover plate 4 is greater, causing the cover plate 4 to cover the exhaust port 32 (leaving a gap), slowing down the gas escape and thus achieving a deceleration and buffering effect. Therefore, the resistance can be adjusted according to different window sash movements, improving the feel of pushing and pulling doors and windows.

[0044] In the above embodiment, preferably, a limiting assembly is arranged on the end face of the guide column 31 to limit the cover plate 4 in the axial direction of the guide column 31. Specifically, the limiting assembly comprises a limiting piece 33 and a connecting piece 34, wherein the surface of the limiting piece 33 is inwardly recessed to form a recessed portion 331, and the bottom of the recessed portion 331 is provided with a through hole 332 penetrating the limiting piece. The recessed portion 331 is clamped with the end face of the guide column 31, and the connecting hole 311 (screw hole in this embodiment) is arranged at the position corresponding to the through hole 332 on the guide column 31. Correspondingly, the connecting piece 34 (screw in this embodiment) penetrates the through hole 332 and is connected with the connecting hole 311. Thus, the cover plate 4 is axially limited by the limiting piece 33 to avoid the cover plate 4 from being separated from the guide column 31, and the stability of the movement of the cover plate 4 is ensured.

[0045] Second embodiment:

[0046] As Figure 3 shown, on the basis of the first embodiment, the second embodiment of the utility model provides another buffer assembly for feedback adjusting resistance, which comprises a shell 1, a piston rod 2, a base 3, a cover plate 4, a first elastic piece 5 and a second elastic piece 6. Compared with the first embodiment, the difference of the embodiment is that the size of the exhaust capacity can be freely adjusted.

[0047] Specifically, in this embodiment, a plurality of auxiliary air holes 103 are further arranged on the outer wall of the shell 1, and a detachable plug 104 is arranged in each auxiliary air hole 103. It can be understood that for any auxiliary air hole 103, pulling out the plug 104 can realize exhaust, and installing the plug 104 cannot exhaust. Thus, the number of plugs 104 pulled out can be selected according to the need, the more auxiliary air holes opened, the larger the exhaust capacity, so that by opening different numbers of auxiliary air holes 103, the size of the exhaust capacity is adjusted to adapt to different use scenarios.

[0048] In this embodiment, preferably, the plurality of auxiliary air holes 103 are located at one end of the shell 1 close to the base 3 and are uniformly distributed along the circumferential direction of the shell 1.

[0049] In addition to the above differences, the rest of the structure of this embodiment is the same as that of the first embodiment, and will not be described here.

[0050] Third embodiment:

[0051] On the basis of the first embodiment or the second embodiment, the third embodiment of the utility model provides a door and window structure comprising any one of the above buffer assemblies.

[0052] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, different embodiments or examples described in the present specification and the features of different embodiments or examples can be combined and integrated by those skilled in the art without contradiction, if necessary.

[0053] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0054] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A damper assembly with feedback-adjustable resistance, characterized in that, include: The outer casing has a hollow inner cavity with openings at both ends; A piston rod is movably inserted into the hollow inner cavity, and the piston head of the piston rod matches the inner wall of the hollow inner cavity, with the rod portion of the piston rod protruding from one end of the outer shell; A base is connected to the other end of the outer shell, and a guide post extends from the base toward the interior of the hollow cavity. An exhaust hole is provided on the surface of the base. A cover plate is movably sleeved on the guide post. An exhaust gap is formed between the outer wall of the cover plate and the inner wall of the hollow cavity. When the cover plate abuts against the surface of the base, it partially covers the exhaust hole. A first elastic element is sleeved on the guide post and located between the surface of the base and the cover plate to reset the cover plate; A second elastic element is disposed between the cover plate and the piston head to reset the piston rod.

2. The buffer assembly as claimed in claim 1, characterized in that, The end face of the guide post is provided with a limiting component to limit the cover plate in the axial direction of the guide post.

3. The buffer assembly as claimed in claim 2, characterized in that, The limiting component includes: A limiting member, the surface of which is recessed inward to form a recessed portion; a through hole is provided at the bottom of the recessed portion; the recessed portion engages with the end face of the guide post, and a connecting hole is provided on the guide post at a position corresponding to the through hole; A connector is inserted into the through hole and connected to the connection hole.

4. The buffer assembly as claimed in claim 2, characterized in that, A sealing ring is fitted on the outer wall of the piston head to seal the gap between the outer wall of the piston head and the inner wall of the hollow cavity.

5. The buffer assembly as claimed in claim 1, characterized in that, A limiting step is formed at the end of the hollow inner cavity away from the base. The limiting step abuts against or separates from the piston head to axially limit the piston rod.

6. The buffer assembly as claimed in claim 1, characterized in that, The outer wall of the outer shell is also provided with multiple auxiliary air holes, and each of the multiple auxiliary air holes is equipped with a detachable plug for adjusting the amount of exhaust.

7. The buffer assembly as claimed in claim 6, characterized in that, The plurality of auxiliary air holes are located at one end of the outer shell near the base and are evenly distributed along the circumferential direction of the outer shell.

8. The buffer assembly as claimed in claim 1, characterized in that, Both the first elastic element and the second elastic element are springs.

9. The buffer assembly as claimed in claim 1, characterized in that, The base is fixedly connected to the outer shell, or the base is detachably connected to the outer shell.

10. A door and window structure, characterized in that, Includes the buffer assembly as described in any one of claims 1-9.

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