A seat

Abstract

The application discloses a seat, which comprises a seat assembly and a base, and downward protruding connecting seats are symmetrically arranged at the left and right sides of the rear end of the seat assembly; the corresponding positions of the left and right sides of the base are respectively provided with mounting grooves for accommodating the connecting seats; the connecting seats are rotationally fitted in the mounting grooves through a rotating connecting rod; the rotating connecting rod comprises a horizontal rotating shaft and a connecting rod which is perpendicular to the rotating shaft and extends downward; a rotating circular groove is arranged on the connecting seat, the rotating shaft is rotationally fitted in the rotating circular groove, so that the connecting rod can rotate relative to the connecting seat in the front-rear direction; the connecting rod is embedded in the mounting groove downward together with the connecting seat, and the connecting rod is fixedly connected with the base through a screw, the screw is arranged to be sequentially and upwardly provided on the base and the connecting rod from below the base; the connecting seat is embedded in the mounting groove, and the mounting groove can limit the rotating shaft from being separated from the connecting seat; then, the connecting rod and the base can be fixedly connected only through the screw; and the connection is convenient.

Description

Technical Field

[0001] This invention relates to the field of seating, and particularly to a seating arrangement. Background Technology

[0002] Office chairs are essential furniture for daily home and work environments. As an indispensable product in office furniture, existing office chairs are popular among consumers due to their practicality. Currently, office chairs on the market typically have adjustable seats and backrests with forward or backward tilting functions. The seats and backrests can move in both directions to accommodate the user's dynamic sitting posture, improving user comfort; they can also adapt to changes in body posture, ensuring comfort and promoting health.

[0003] To further improve seat mobility, some existing office chairs have a rotatable connection between the rear end of the seat and the base. This allows the rear end of the seat to rotate adaptively within a certain range when the chair is tilted, improving comfort. For example, Chinese invention patent CN201680027927.1 discloses a mechanical structure assembly for a chair and a chair with this assembly; both the front and rear ends of the chair are rotatably connected to the base. However, the rotatable connection structure clearly involves hinged joints between the seat and the base along the width of the seat. This rotatable structure requires precise positioning of the rotatable shaft hole between the rear end of the seat and the base before the shaft can be connected. Furthermore, precise positioning of both the front and rear ends of the seat is essential, making installation inconvenient. The shaft serves both rotational and fixing functions, further complicating installation. Additionally, after the seat and base are connected, the rotating parts and shaft are clearly exposed beneath the seat, resulting in an unsightly structure. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a cleverly designed and simple seat. The connecting seat on the seat assembly is rotatably fitted into the mounting groove of the base via a rotating linkage. The rotating linkage includes a horizontal rotating shaft and a connecting rod that is perpendicular to the rotating shaft and extends downward. During connection, it is only necessary to pre-rotate the rotating shaft and the connecting seat to fit together, and then embed the connecting seat into the mounting groove. The mounting groove can prevent the rotating shaft from detaching from the connecting seat. Then, the connecting rod can be fixedly connected to the base by screws, simplifying the connection structure. Moreover, the screws pass through from the bottom of the base upwards, making installation convenient and quick and able to hide the connection marks.

[0005] The technical solution of this invention is implemented as follows:

[0006] A seating arrangement includes a seat assembly and a base. Downwardly projecting connecting seats are mirror-imagely provided on the left and right sides of the rear end of the seat assembly. Mounting grooves for accommodating the connecting seats are respectively provided at corresponding positions on the left and right sides of the base. The connecting seats are rotatably fitted into the mounting grooves via a rotating linkage. The rotating linkage includes a horizontal rotating shaft and a connecting rod extending downwards perpendicular to the rotating shaft. A rotating circular groove is provided on the connecting seat, and the rotating shaft is rotatably fitted into the rotating circular groove to allow the connecting rod to rotate relative to the connecting seat in a front-to-back direction. The connecting rod is embedded downwards into the mounting groove along with the connecting seat, and the connecting rod is fixedly connected to the base by screws, which are arranged to pass sequentially upwards from below the base onto the base and the connecting rod.

[0007] Preferably, the rotating connecting rod has an "L"-shaped structure; the rotating groove is provided on the side wall of the connecting seat facing the center of the chair seat assembly; and the side wall of the connecting seat also has a clearance groove located below the rotating groove; the rotating shaft is horizontally embedded and rotatably engaged in the rotating groove, and while the rotating shaft is rotatably engaged in the rotating groove, the connecting rod is embedded in the clearance groove. This allows for easy insertion and removal of the rotating shaft from the rotating groove; and the clearance groove prevents the connecting rod from rotating relative to the connecting seat; thus, the rotational engagement between the rotating connecting rod and the connecting seat is very convenient and quick to operate.

[0008] Preferably, the depth of the rotating groove matches the length of the rotating shaft, with the entire rotating shaft embedded within the groove. This ensures that the rotating shaft does not protrude from the side wall of the connecting seat, resulting in good integrity and an aesthetically pleasing structure; it also provides a large rotational contact area between the rotating shaft and the connecting seat, ensuring a stable rotating structure.

[0009] Preferably, the connecting rod's movement is restricted within the clearance groove. The clearance groove not only prevents the connecting rod from extending downwards but also limits the rotation of the connecting rod.

[0010] Preferably, the bottom of the mounting groove has a downwardly recessed insertion hole; the connecting rod is inserted downward into the mounting groove along with the connecting seat, and the bottom end of the connecting rod is inserted into the insertion hole. This allows the connecting rod to be inserted into the mounting groove, ensuring a tight connection between the connecting rod and the mounting groove, enabling quick positioning and saving installation time.

[0011] Preferably, at the bottom of the mounting slot, where the insertion block is located, a mounting hole is also provided, extending vertically through the base along the axial direction of the insertion hole. The diameter of the mounting hole is smaller than the diameter of the insertion hole. Correspondingly, a connecting hole is provided on the bottom surface of the connecting rod. The screw is configured to pass through the mounting hole from the bottom of the base and connect to the connecting hole. The screw can then be directly inserted from the bottom of the base to fix the base and the connecting rod, allowing the chair seat assembly to rotate relative to the base around the rotation axis, making the connection convenient and simple.

[0012] Preferably, the width of the connector is close to the width of the mounting groove. This ensures a tight connection between the connector and the mounting groove, resulting in an aesthetically pleasing structure. Furthermore, it prevents the connector from moving left or right within the mounting groove, limiting the rotation shaft from detaching from the connector and ensuring a stable rotating structure.

[0013] Preferably, after the screws are connected, a decorative bottom cover is also provided at the bottom of the base. The decorative bottom cover can cover the screws, hide the connection marks, and improve the appearance.

[0014] Preferably, the seat assembly is a frame structure, and the seat assembly includes side supports located on the left and right sides respectively; the connecting seat is located at the rear end of the side supports.

[0015] Preferably, the base has support arms extending to the left and right sides at its rear end, and the mounting groove is provided on the upper surface of the side end of the support arm.

[0016] The design starting point, concept, and beneficial effects of the present invention, which adopts the above technical solution, are as follows:

[0017] First, in the seat of the present invention, the connecting seat on the seat assembly is rotatably fitted into the mounting groove of the base via a rotating linkage. The rotating linkage includes a horizontal rotating shaft and a connecting rod that extends downward perpendicularly to the rotating shaft. During connection, it is only necessary to pre-rotate the rotating shaft and the connecting seat, and then embed the connecting seat into the mounting groove, which prevents the rotating shaft from detaching from the connecting seat. Then, the connecting rod is simply fixed to the base with screws, simplifying the connection structure. Furthermore, an insertion hole is provided at the bottom of the mounting groove, allowing the bottom end of the connecting rod to be quickly inserted into the hole for rapid positioning. Finally, screws are connected from the bottom of the base, making installation very convenient and quick.

[0018] Secondly, the rotating shaft does not require a locking structure with the connecting seat; the rotating shaft can be easily embedded into the rotating groove in the horizontal direction; after the connecting seat is embedded in the mounting groove, the mounting groove can prevent the rotating shaft from detaching from the connecting seat; thus, only the connecting rod needs to be fixed, so that the mounting groove can both accommodate the connecting seat to hide the connection marks and prevent the rotating shaft from detaching from the connecting seat, thus playing a limiting role; the design is ingenious.

[0019] Furthermore, the screw connection is located at the bottom of the support arm, and a decorative bottom cover is provided at the bottom of the base to cover the screw, hide the connection marks, and beautify the appearance; and the connector is embedded in the mounting groove, so the rotating shaft will not protrude from the side wall of the connector; making the overall connection structure simple and beautiful. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the chair seat assembly and base installation in an embodiment of the present invention;

[0021] Figure 2This is an exploded view showing the installation of the seat assembly and base in an embodiment of the present invention;

[0022] Figure 3 This is a three-dimensional structural diagram of the rotating linkage after it has been pre-fitted with the seat assembly in an embodiment of the present invention;

[0023] Figure 4 This is a three-dimensional structural diagram of the cooperation between the rotating connecting rod and the connecting seat in an embodiment of the present invention;

[0024] Figure 5 This is a three-dimensional structural diagram of the rotating shaft rotating within the rotating groove in an embodiment of the present invention;

[0025] Figure 6 This is a three-dimensional structural diagram of the mounting groove in an embodiment of the present invention;

[0026] Figure 7 This is a three-dimensional structural diagram of the rotating connecting rod in an embodiment of the present invention;

[0027] Figure 8 This is a diagram showing the connection structure at the bottom of the base in an embodiment of the present invention.

[0028] The attached figures are labeled as follows: seat assembly 1; side support 1a; base 2; support arm 2a; connecting seat 3; mounting groove 4; rotating link 5; rotating shaft 5a; connecting rod 5b; rotating circular groove 6; screw 7; clearance groove 8; insertion hole 9; mounting hole 10; connecting hole 11; decorative bottom cover 12. Detailed Implementation

[0029] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0031] In the description of this invention, the term "at least one" means one or more, unless otherwise expressly defined. The terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] The specific embodiments of the present invention are as follows:

[0033] like Figure 1-8As shown, the present invention provides a seating device, including a detachably connected seat assembly 1 and a base 2; downwardly protruding connecting seats 3 are mirror images of the left and right sides of the rear end of the seat assembly 1; corresponding positions on the left and right sides of the base 2 are respectively provided with mounting grooves 4 for accommodating the connecting seats 3; the connecting seats 3 are rotatably engaged in the mounting grooves 4 via a rotating connecting rod 5; the rotating connecting rod 5 includes a horizontal rotating shaft 5a and a connecting rod 5b perpendicular to the rotating shaft 5a and extending downward; the connecting seat 3 is provided with a rotating circular groove 6; the rotating shaft 5a at the upper end of the rotating connecting rod 5 is rotatably engaged in the rotating circular groove 6, so that the connecting rod 5b can rotate relative to the connecting seat 3 in the front-back direction; and the connecting rod 5b is embedded downward in the mounting groove 4 along with the connecting seat 3, and the connecting rod 5b is fixedly connected to the base 2 by screws 7, the screws 7 being configured to pass through the base 2 and the connecting rod 5b sequentially from the bottom of the base 2 upward. The connecting seat 3 is rotatably fitted into the mounting groove 4 via the rotating connecting rod 5. The rotating shaft 5a of the rotating connecting rod 5 is responsible for rotatably fitting with the connecting seat 3, and the connecting rod 5b of the rotating connecting rod 5 is responsible for fixedly connecting with the base 2. Moreover, during installation, the screw 7 can be directly connected from the bottom to the top of the base 2, which is very convenient and quick to install.

[0034] like Figure 2-7 As shown, the rotating connecting rod 5 has an "L"-shaped structure; the rotating circular groove 6 is provided on the side wall of the connecting seat 3 facing the center of the chair seat assembly 1, and the side wall of the connecting seat 3 is also provided with a clearance groove 8 located below the rotating circular groove 6; the rotating shaft 5a is horizontally embedded and rotatably fitted in the rotating circular groove 6, and while the rotating shaft 5a is rotatably fitted in the rotating circular groove 6, the connecting rod 5b is embedded in the clearance groove 8. This allows for easy insertion or removal of the rotating shaft 5a into or from the rotating circular groove 6, and the clearance groove 8 prevents the connecting rod 5b from rotating relative to the connecting seat 3; making the rotational fit between the rotating connecting rod 5 and the connecting seat 3 very convenient and quick to operate. Figure 4-5 As shown, the front and rear ends of the clearance groove 8 can abut against the connecting rod 5b to limit the range of motion of the connecting rod 5b; thus, in addition to allowing the connecting rod 5b to move, the clearance groove 8 can also limit the rotation of the connecting rod 5b, demonstrating a clever structural design. Furthermore, the depth of the rotating circular groove 6 matches the length of the rotating shaft 5a, with the rotating shaft 5a fully embedded within it; this ensures that after the rotating shaft 5a mates with the connecting seat 3, it will not protrude from the side wall of the connecting seat 3, resulting in good integrity and an aesthetically pleasing structure; it also provides a large rotational contact area between the rotating shaft 5a and the connecting seat 3, ensuring a stable rotational structure.

[0035] like Figure 1-3As shown, the chair seat assembly 1 has a frame structure and includes side supports 1a located on the left and right sides respectively. The connecting seat 3 is disposed at the rear end of each side support 1a. The rear end of the base 2 is provided with support arms 2a extending to the left and right sides respectively. The support arms 2a are configured to connect to and support the chair seat assembly 1. The mounting groove 4 is disposed on the upper end surface of the side end of the support arm 2a. When connected, the connecting seats 3 on both sides of the chair seat assembly 1 can be inserted downward into the two mounting grooves 4.

[0036] like Figure 5-7 As shown, a recessed insertion hole 9 is provided at the bottom of the mounting groove 4. The insertion hole 9 is configured to be inserted into the bottom end of the connecting rod 5b. Specifically, the bottom end of the connecting rod 5b extends downward outside the connecting seat 3. When the connecting rod 5b is inserted downward into the mounting groove 4 along with the connecting seat 3, the bottom end of the connecting rod 5b can be inserted into the insertion hole 9. In addition, at the position of the insertion hole 9 at the bottom of the mounting groove 4, there is also a mounting hole 10 that extends vertically through the support arm 2a along the axial direction of the insertion hole 9. The diameter of the mounting hole 10 is smaller than the diameter of the insertion hole 9, so that the connecting rod... The bottom surface of 5b rests directly above the mounting hole 10; correspondingly, a connecting hole 11 is provided on the bottom surface of the connecting rod 5b; subsequently, after the connecting seat 3 is embedded in the mounting groove 4, the connecting rod 5b will be simultaneously inserted into the insertion hole 9, and then the screw 7 will be inserted upward from the bottom of the support arm 2a into the mounting hole 10 and connected to the connecting hole 11, thereby fixing the connecting rod 5b to the support arm 2a; with the connecting rod 5b and the support arm 2a relatively fixed, the side support body 1a of the seat assembly 1 can rotate around the rotation axis 5a; thus realizing the rotational connection between the seat assembly 1 and the base 2. This connection structure allows for simple installation: the connecting seat 3 is inserted into the mounting groove 4, and the connecting rod 5b is inserted into the socket 9. Then, the screw 7 is simply inserted from below the support arm 2a upwards to secure the support arm 2a to the connecting rod 5b. The connection is convenient and quick. Furthermore, during this connection process, the rotating shaft 5a is pre-fitted with the connecting seat 3, allowing control of the connecting rod 5b's rotation and rapid insertion into the socket 9. Positioning is very quick and convenient, making installation even faster. Moreover, the width of the connecting seat 3 is close to the width of the mounting groove 4, ensuring a tight connection and aesthetically pleasing structure after the connecting seat 3 is inserted into the mounting groove 4. This also prevents the connecting seat 3 from moving left or right within the mounting groove 4, limiting the rotation shaft 5a from detaching from the connecting seat 3 and ensuring a stable rotating structure.

[0037] like Figure 8 As shown, after the screw 7 is inserted into the support arm 2a from below and connected to the connecting rod 5b, a decorative bottom cover 12 is also provided at the bottom of the support arm 2a, which can cover the screw 7, hide the connection structure, and improve the appearance. Furthermore, as... Figure 1As described above, after the connection is completed, the connector 3 is embedded in the mounting groove 4, and the rotating shaft 5a will not be exposed outside the side wall of the connector 3, making the connection structure simple and beautiful.

Claims

1. A seat, characterized by: The chair seat assembly and the base are provided with downward protruding connecting seats on the left and right sides of the rear end of the chair seat assembly; the base is provided with mounting slots for accommodating the connecting seats at the corresponding positions on the left and right sides; the connecting seats are rotationally fitted in the mounting slots through a rotating link; the rotating link is in an "L" shape; the rotating link comprises a horizontal rotating shaft and a connecting rod which is perpendicular to the rotating shaft and extends downward; a rotating circular groove is arranged on the connecting seat, and the rotating shaft is rotationally fitted in the rotating circular groove so that the connecting rod can rotate relative to the connecting seat in the front-rear direction; the connecting rod is embedded in the mounting slot downward together with the connecting seat, and the connecting rod is fixedly connected to the base through a screw which is arranged to be sequentially threaded on the base and the connecting rod from below the base to above.

2. The seat of claim 1, wherein: The rotating circular groove is arranged on the side wall of the connecting seat which faces the center direction of the chair seat assembly; and the side wall of the connecting seat is further provided with an avoiding groove which is located below the rotating circular groove; the rotating shaft is embedded and rotationally fitted in the rotating circular groove in the horizontal direction, and at the same time that the rotating shaft is rotationally fitted in the rotating circular groove, the connecting rod is embedded in the avoiding groove.

3. The seat of claim 2, wherein: The depth of the rotating circular groove matches the length of the rotating shaft, and the rotating shaft is entirely embedded in the rotating circular groove.

4. The seat of claim 2, wherein: The connecting rod is movably limited in the avoiding groove.

5. The seat of claim 1, wherein: A downward recessed insertion hole is arranged at the bottom of the mounting slot; the connecting rod is embedded in the mounting slot downward together with the connecting seat, and the lower end of the connecting rod is inserted in the insertion hole.

6. The seat of claim 5, wherein: An installation hole which penetrates the base in the axial direction of the insertion hole is further arranged at the position of the insertion block at the bottom of the mounting slot, and the hole diameter of the installation hole is smaller than the hole diameter of the insertion hole; correspondingly, a connecting hole is arranged on the bottom surface of the connecting rod; the screw is arranged to be threaded into the installation hole from below the base and connected in the connecting hole.

7. The seat of claim 1, wherein: The width of the connecting seat approaches the width of the mounting slot.

8. The seat of claim 1 or 6, wherein: After the screw is connected, a decorative bottom cover is further arranged at the bottom of the base.

9. The seat of claim 1, wherein: The chair seat assembly is in a frame structure, and comprises side support bodies on the left and right sides respectively; the connecting seat is arranged at the rear end of the side support body.

10. The seat of claim 1, wherein: The rear end of the base is provided with support arms which extend to the left and right sides respectively, and the mounting slot is arranged at the side end of the support arm. The rear end of the base is provided with support arms which extend to the left and right sides respectively, and the mounting slot is arranged at the side end of the support arm.

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