Base assembly and seat

Abstract

The utility model discloses a base assembly and a seat, the base assembly comprises: a housing, the housing comprises an upper cover and a lower cover, the upper cover is provided with a first pivot part, and the lower cover is provided with a second pivot part; a second pivoting part and a third pivoting part which are arranged at an interval are formed on the fixing part; the movable part can move in the front-back direction relative to the fixed part, and a fourth pivoting part is formed on the movable part; and the adjusting assembly is connected with the first pivoting part, the second pivoting part, the third pivoting part and the fourth pivoting part, so that the movable part moves relative to the fixed part while the upper cover moves relative to the lower cover. According to the base assembly, when the upper cover moves relative to the lower cover, the movable part can correspondingly move relative to the fixed part, continuous support is provided for the back of a user, the problems of muscle tension and fatigue caused by sedentariness can be relieved, and the comfort level and the supporting effect of the user are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of seats, in particular to a base assembly and a seat. Background Art

[0002] Relevant technologies point out that existing seat structures often adopt a fixed support design and lack adaptive support for various parts of the user's body, which may lead to discomfort or fatigue after long-term use. They cannot be adjusted according to the user's body shape and posture, limiting the comfort and applicability of the seat. Alternatively, they need to be adjusted by themselves and cannot meet the personalized needs of different users for back support position and strength. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems in the prior art. To this end, the present invention provides a base assembly that can drive a backrest assembly to continuously provide support for the back.

[0004] The utility model also provides a seat having the base assembly.

[0005] According to the first aspect of the present invention, the base assembly includes: a shell, a accommodating space is formed in the shell, the shell includes an upper cover and a lower cover, the upper cover is movably arranged above the lower cover, and the upper cover is formed with a first pivot part; a fixing member, the fixing member is arranged in the accommodating space and connected to the lower cover, the fixing member is formed with a second pivot part and a third pivot part arranged at intervals; a movable member, at least a part of the movable member is arranged in the accommodating space and connected to the fixing member, the movable member can move in the front and rear directions relative to the fixed member, and the movable member is formed with a fourth pivot part; an adjusting component, the adjusting component is connected to the first pivot part, the adjusting component is connected to the second pivot part, the adjusting component is connected to the third pivot part, and the adjusting component is connected to the fourth pivot part, so that the movable member moves relative to the fixed member when the upper cover moves relative to the lower cover.

[0006] According to the base assembly of the utility model, by setting an adjustment assembly, when the upper cover moves relative to the lower cover, the movable part can move accordingly relative to the fixed part, providing continuous support for the user's back, and being able to maintain a good sitting posture whether at work or at rest, helping to reduce muscle tension and fatigue caused by sitting for long periods of time, improving the user's comfort and support effect, fully considering ergonomic principles, and providing the user with a sitting environment that is both comfortable and supportive, which is particularly suitable for users who need to sit for long periods of time to work.

[0007] In some embodiments, the adjustment assembly includes: a first connecting rod, which is rotatably connected between the upper cover and the fixed member; a second connecting rod, one end of which is rotatably connected to the first connecting rod; a third connecting rod, one end of which is rotatably connected to the other end of the second connecting rod; and a fourth connecting rod, one end of which is rotatably connected to the other end of the third connecting rod, and the other end of the fourth connecting rod is connected to the movable member.

[0008] In some embodiments, a first through hole is formed at one end of the first connecting rod, a first connecting hole is formed on the upper cover, the first connecting rod and the upper cover are rotatably connected by a first rotating shaft passing through the first through hole and the first connecting hole, a second through hole is formed at the other end of the first connecting rod, a second connecting hole is formed on the fixing member, the first connecting rod and the fixing member are rotatably connected by a second rotating shaft passing through the second through hole and the second connecting hole.

[0009] In some embodiments, a third through hole is formed on the first connecting rod, a fourth through hole is formed at one end of the second connecting rod, the first connecting rod and the second connecting rod are rotatably connected to each other via a third rotating shaft passing through the third through hole and the fourth through hole, a fifth through hole is formed at the other end of the second connecting rod, a sixth through hole is formed at one end of the third connecting rod, and the second connecting rod and the third connecting rod are rotatably connected to each other via a fourth rotating shaft passing through the fifth through hole and the sixth through hole.

[0010] In some embodiments, a seventh through hole is formed at the other end of the third connecting rod, an eighth through hole is formed at one end of the fourth connecting rod, the third connecting rod and the fourth connecting rod are rotatably connected to each other via a fifth rotating shaft passing through the seventh through hole and the eighth through hole, a ninth through hole is formed at the other end of the fourth connecting rod, a third connecting hole is formed on the movable part, the fourth connecting rod and the movable part are rotatably connected to each other via a sixth rotating shaft passing through the ninth through hole and the third connecting hole, and the third connecting rod is rotatably connected to the fixed part via the seventh rotating shaft.

[0011] In some embodiments, a first connecting portion is formed on the first connecting rod, a second connecting portion is formed on the third connecting rod, and the base assembly further includes: a reset member, one end of the reset member is rotatably connected to the first connecting portion, and the other end of the reset member is rotatably connected to the second connecting portion.

[0012] In some embodiments, a guide groove is formed on the fixing member, and the guide groove extends along the front-to-back direction. A guide column is formed on the movable member, and the guide column is movably disposed in the guide groove.

[0013] In some embodiments, the movable member includes a bushing, and the bushing is sleeved on the guide column.

[0014] In some embodiments, the adjustment assembly further includes: a fifth connecting rod, one end of the fifth connecting rod is rotatably connected to the upper cover, and the other end of the fifth connecting rod is rotatably connected to the fixing member.

[0015] The seat according to the second aspect of the present invention comprises: chair legs, a backrest assembly and the base assembly according to the first aspect of the present invention, wherein the base assembly is arranged on the chair legs, a first fixing portion is formed on the movable part of the base assembly, a second fixing portion is formed on the backrest assembly, and the backrest assembly and the base assembly are connected via the first fixing portion and the second fixing portion.

[0016] According to the seat of the present invention, by setting the base assembly of the first aspect mentioned above, it is adapted to the needs of different users from the perspective of ergonomic principles, and can be adjusted to provide optimal support during use, thereby achieving adaptive support for the user's back of the seat, improving the comfort and applicability of the seat, and being able to effectively relieve discomfort or fatigue, meeting the personalized needs of different users.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of a base assembly according to an embodiment of the present utility model;

[0019] Figure 2 yes Figure 1 An internal schematic diagram of the base assembly shown in ;

[0020] Figure 3 yes Figure 1 A cross-sectional schematic diagram of the base assembly is shown in FIG.

[0021] Reference numerals:

[0022] 100. Base assembly;

[0023] 1. Upper cover; 2. Lower cover;

[0024] 3. Fixing piece; 31. Guide groove;

[0025] 4. Movable part; 41. Guide column; 42. First fixing part;

[0026] 5. Adjustment assembly; 51. First connecting rod; 511. First connecting portion; 52. Second connecting rod; 53. Third connecting rod; 531. Second connecting portion; 54. Fourth connecting rod; 55. Fifth connecting rod;

[0027] 6. Bushing; 7. Reset piece;

[0028] 81. First rotating shaft; 82. Second rotating shaft;

[0029] 83, third rotating shaft; 84, fourth rotating shaft;

[0030] 85. Fifth axis; 86. Sixth axis. DETAILED DESCRIPTION

[0031] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0032] Reference below Figure 1-Figure 3 The base assembly 100 according to the first embodiment of the present invention is described.

[0033] like Figure 1-Figure 3 As shown, the base assembly 100 according to the embodiment of the first aspect of the present utility model includes: a shell, a fixing part 3, a movable part 4 and an adjustment assembly 5.

[0034] Specifically, an accommodating space is formed in the shell, and the shell includes an upper cover 1 and a lower cover 2. The upper cover 1 can be movably arranged above the lower cover 2, and the upper cover 1 forms a first pivot portion. The fixing member 3 is arranged in the accommodating space and connected to the lower cover 2, and the fixing member 3 forms a second pivot portion and a third pivot portion arranged at intervals. At least a part of the movable member 4 is arranged in the accommodating space and connected to the fixing member 3. The movable member 4 can move in the front and rear directions relative to the fixing member 3. The movable member 4 forms a fourth pivot portion, and the adjusting component 5 is connected to the first pivot portion, the adjusting component 5 is connected to the second pivot portion, the adjusting component 5 is connected to the third pivot portion, and the adjusting component 5 is connected to the fourth pivot portion, so that the movable member 4 can move relative to the fixing member 3 when the upper cover 1 moves relative to the lower cover 2.

[0035] It can be understood that the shell is composed of an upper cover 1 and a lower cover 2, and the upper cover 1 and the lower cover 2 define a accommodating space. The upper cover 1 is movable relative to the lower cover 2. The fixing part 3 is located in the accommodating space of the shell, and the fixing part 3 is connected to the lower cover 2. The upper cover 1 is formed with a first pivot part, and the fixing part 3 is formed with a second pivot part and a third pivot part. Part of the movable part 4 is arranged in the accommodating space of the shell and is connected to the fixing part 3. The movable part 4 can move relative to the fixing part 3 in the front and rear directions. A fourth pivot part is formed on the movable part 4, and the adjustment component 5 is connected to the first pivot part, the second pivot part, the third pivot part and the fourth pivot part. The adjustment component 5 coordinates the various pivot parts so that when the upper cover 1 moves relative to the lower cover 2, the movable part 4 can move accordingly relative to the fixing part 3, thereby realizing the overall position change.

[0036] According to the base assembly 100 of the embodiment of the present invention, by providing an adjustment assembly 5, when the upper cover 1 moves relative to the lower cover 2, the movable part 4 can move accordingly relative to the fixed part 3, providing continuous support for the user's back, and being able to maintain a good sitting posture whether at work or at rest, helping to reduce muscle tension and fatigue caused by sitting for long periods of time, improving the user's comfort and support effect, fully considering ergonomic principles, and providing the user with a sitting environment that is both comfortable and supportive, which is particularly suitable for users who need to sit for long periods of time to work.

[0037] In some embodiments of the present invention, the adjustment assembly 5 includes: a first link 51, a second link 52, a third link 53 and a fourth link 54. The first link 51 is rotatably connected between the upper cover 1 and the fixing member 3, one end of the second link 52 is rotatably connected to the first link 51, one end of the third link 53 is rotatably connected to the other end of the second link 52, one end of the fourth link 54 is rotatably connected to the other end of the third link 53, and the other end of the fourth link 54 is connected to the movable member 4. Figure 3 As shown, the upper end of the first connecting rod 51 is rotatably connected to the upper cover 1, the lower end of the first connecting rod 51 is rotatably connected to the fixing member 3, the front end of the second connecting rod 52 is rotatably connected to the first connecting rod 51, the rear end of the second connecting rod 52 is rotatably connected to the lower end of the third connecting rod 53, the upper end of the third connecting rod 53 is rotatably connected to the rear end of the fourth connecting rod 54, and the front end of the fourth connecting rod 54 is rotatably connected to the movable member 4. It can be understood that the adjustment assembly 5 is a linkage mechanism, which enables the seat back to move toward the user when the user sits down. The linkage mechanism can provide smooth and stable movement, ensuring a smooth and comfortable adjustment process.

[0038] In some embodiments of the present invention, a first through-hole is formed at one end of the first connecting rod 51, and a first connecting hole is formed at the upper cover 1. The first connecting rod 51 and the upper cover 1 are rotatably connected by a first rotating shaft 81 that penetrates the first through-hole and the first connecting hole. A second through-hole is formed at the other end of the first connecting rod 51, and a second connecting hole is formed at the fixing member 3. The first connecting rod 51 and the fixing member 3 are rotatably connected by a second rotating shaft 82 that penetrates the second through-hole and the second connecting hole. As a result, the connection between the first connecting rod 51 and the fixing member 3 is simple and reliable, and the connection between the first connecting rod 51 and the upper cover 1 is simple and reliable, reducing the complexity of the structure and facilitating assembly and maintenance.

[0039] In some embodiments of the present invention, a third through hole is formed on the first connecting rod 51, a fourth through hole is formed at one end of the second connecting rod 52, and the first connecting rod 51 and the second connecting rod 52 are rotatably connected by a third rotating shaft 83 that penetrates the third through hole and the fourth through hole. A fifth through hole is formed at the other end of the second connecting rod 52, and a sixth through hole is formed at one end of the third connecting rod 53. The second connecting rod 52 and the third connecting rod 53 are rotatably connected by a fourth rotating shaft 84 that penetrates the fifth through hole and the sixth through hole. Thus, the connection between the first connecting rod 51 and the second connecting rod 52 and the third connecting rod 53 is simple and reliable, and the connection between the second connecting rod 52 and the third connecting rod 53 is simple and reliable, thereby achieving relative rotation between the first connecting rod 51 and the second connecting rod 52, and relative rotation between the second connecting rod 52 and the third connecting rod 53.

[0040] In some embodiments of the present invention, a seventh through hole is formed at the other end of the third link 53, an eighth through hole is formed at one end of the fourth link 54, and the third link 53 and the fourth link 54 are rotatably connected via a fifth rotation shaft 85 that penetrates the seventh through hole and the eighth through hole. A ninth through hole is formed at the other end of the fourth link 54, a third connecting hole is formed on the movable member 4, and the fourth link 54 and the movable member 4 are rotatably connected via a sixth rotation shaft 86 that penetrates the ninth through hole and the third connecting hole. The third link 53 is rotatably connected to the fixed member 3 via the seventh rotation shaft. Thus, the connection between the third link 53 and the fourth link 54 is simple and reliable, not only providing good flexibility but also ensuring the stability and durability of the entire adjustment mechanism. The connection points between each link allow a certain degree of relative movement, thereby improving user comfort and stability.

[0041] In some embodiments of the present invention, a first connecting portion 511 is formed on the first connecting rod 51, a second connecting portion 531 is formed on the third connecting rod 53, and the base assembly 100 further includes: a reset member 7, one end of the reset member 7 is rotatably connected to the first connecting portion 511, and the other end of the reset member 7 is rotatably connected to the second connecting portion 531. Figure 3As shown, the front end of the reset member 7 is rotatably connected to the first connection portion 511, and the rear end of the reset member 7 is rotatably connected to the second connection portion 531. It is understandable that when the user leaves the base assembly 100, the reset member 7 can help it return to its original position, further improving the user's comfort.

[0042] Optionally, the reset member 7 has the following reset modes:

[0043] Spring-loaded return: Through a built-in spring mechanism, when the user releases the locking mechanism, the spring automatically pulls the backrest assembly back to the preset position;

[0044] Gas rod reset: The compression and extension of the gas rod provide a smooth reset action. The user only needs to stand up from the base assembly 100, and the gas rod will assist it to return to the preset position.

[0045] Electric reset: Driven by an electric motor, the user can start the reset function through the control panel or remote control to achieve a fully automated reset process.

[0046] Here, a gas pressure rod is preferred.

[0047] In some embodiments of the present invention, Figure 2 and Figure 3 As shown, the fixed member 3 is formed with a guide slot 31 extending in the front-to-back direction, and the movable member 4 is formed with a guide post 41 movably disposed within the guide slot 31. Thus, the guide slot 31 ensures that the movable member 4 can only move within the guide slot 31, preventing unnecessary lateral deviation. By limiting the degree of freedom of the movable member 4, the stability of the entire structure is increased.

[0048] In order to extend the service life of the movable part 4 and the fixed part 3, the movable part 4 includes a bushing 6, which is sleeved on the guide column 41, thereby reducing the friction between the guide column 41 and the guide groove 31, and improving the accuracy and consistency of the movement between the guide column 41 and the guide groove 31. Since the direct contact between the guide column 41 and the guide groove 31 is reduced, the provision of the bushing 6 reduces the noise generated during the movement.

[0049] In some embodiments of the present invention, the adjustment assembly 5 further includes a fifth connecting rod 55, one end of which is rotatably connected to the upper cover 1, and the other end of which is rotatably connected to the fixing member 3. This improves the stability of the entire adjustment assembly 5 during use, and the fifth connecting rod 55 helps to disperse the force applied to the upper cover 1, reducing the pressure on a single connection point.

[0050] The seat according to the second aspect of the present invention includes: chair legs, a backrest assembly and a base assembly 100 according to the first aspect of the present invention. The base assembly 100 is arranged on the chair legs, and a first fixing portion 42 is formed on the movable part 4 of the base assembly 100, and a second fixing portion is formed on the backrest assembly. The backrest assembly and the base assembly 100 are connected to each other through the first fixing portion 42 and the second fixing portion.

[0051] The seat according to the embodiment of the present invention is adapted to the needs of different users from the perspective of ergonomics by setting the base assembly 100 of the first embodiment. It can be adjusted to provide optimal support during use, thereby achieving adaptive support for the user's back, improving the comfort and applicability of the seat, effectively alleviating discomfort or fatigue, and meeting the personalized needs of different users.

[0052] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0053] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0054] In this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0055] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0056] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A base assembly, characterized in that: include: A housing is formed with a receiving space therein, the housing comprising an upper cover and a lower cover, the upper cover being movably disposed above the lower cover, and the upper cover being formed with a first pivot portion; a fixing member, the fixing member being disposed in the accommodating space and connected to the lower cover, the fixing member being formed with a second pivot portion and a third pivot portion that are spaced apart; a movable member, at least a portion of which is disposed in the accommodating space and connected to the fixed member, the movable member being movable in a front-to-rear direction relative to the fixed member, the movable member being formed with a fourth pivot portion; An adjustment assembly is connected to the first pivot portion, the adjustment assembly is connected to the second pivot portion, the adjustment assembly is connected to the third pivot portion, and the adjustment assembly is connected to the fourth pivot portion, so that the movable member moves relative to the fixed member while the upper cover moves relative to the lower cover.

2. The base assembly according to claim 1, wherein: The adjustment component includes: a first connecting rod rotatably connected between the upper cover and the fixing member; a second connecting rod, one end of which is rotatably connected to the first connecting rod; a third connecting rod, one end of the third connecting rod being rotatably connected to the other end of the second connecting rod; A fourth connecting rod, one end of which is rotatably connected to the other end of the third connecting rod, and the other end of which is connected to the movable member.

3. The base assembly according to claim 2, wherein: A first through hole is formed at one end of the first connecting rod, a first connecting hole is formed on the upper cover, the first connecting rod and the upper cover are rotatably connected by a first rotating shaft passing through the first through hole, a second through hole is formed at the other end of the first connecting rod, a second connecting hole is formed on the fixing member, the first connecting rod and the fixing member are rotatably connected by a second rotating shaft passing through the second through hole.

4. The base assembly according to claim 3, wherein: A third through hole is formed on the first connecting rod, a fourth through hole is formed at one end of the second connecting rod, and the first connecting rod and the second connecting rod are rotatably connected to each other via a third rotating shaft passing through the third through hole and the fourth through hole, a fifth through hole is formed at the other end of the second connecting rod, and a sixth through hole is formed at one end of the third connecting rod, and the second connecting rod and the third connecting rod are rotatably connected to each other via a fourth rotating shaft passing through the fifth through hole and the sixth through hole.

5. The base assembly according to claim 4, wherein: A seventh through hole is formed at the other end of the third connecting rod, an eighth through hole is formed at one end of the fourth connecting rod, the third connecting rod and the fourth connecting rod are rotatably connected to each other via a fifth rotating shaft penetrating through the seventh through hole and the eighth through hole, a ninth through hole is formed at the other end of the fourth connecting rod, a third connecting hole is formed on the movable part, the fourth connecting rod and the movable part are rotatably connected to each other via a sixth rotating shaft penetrating through the ninth through hole and the third connecting hole, and the third connecting rod is rotatably connected to the fixed part via the seventh rotating shaft.

6. The base assembly according to any one of claims 2 to 5, characterized in that: A first connecting portion is formed on the first connecting rod, a second connecting portion is formed on the third connecting rod, and the base assembly further includes: a reset member, one end of the reset member is rotatably connected to the first connecting portion, and the other end of the reset member is rotatably connected to the second connecting portion.

7. The base assembly according to any one of claims 1 to 5, characterized in that: A guide groove is formed on the fixing member, and the guide groove extends along the front-back direction. A guide column is formed on the movable member, and the guide column is movably arranged in the guide groove.

8. The base assembly according to claim 7, wherein: The movable part includes a bushing, and the bushing is sleeved on the guide column.

9. The base assembly according to any one of claims 1 to 5, characterized in that: The adjustment assembly further includes a fifth connecting rod, one end of which is rotatably connected to the upper cover, and the other end of which is rotatably connected to the fixing member.

10. A seat, characterized in that: include: Chair legs; The base assembly according to any one of claims 1 to 9, wherein the base assembly is provided on the chair leg, and a first fixing portion is formed on a movable part of the base assembly; A backrest assembly is formed with a second fixing portion, and the backrest assembly is connected to the base assembly via the first fixing portion and the second fixing portion.

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