A rotating connector, a rotating tray, and an office chair

Abstract

This utility model relates to the field of rotating plate technology, and discloses a rotating connector, a rotating support plate, and an office chair, comprising: a first connecting plate, which is fixedly connected to a rotating body; the first connecting plate is provided with a first limiting part; a connecting rod, with a first connecting arm and a second connecting arm respectively at both ends; the first connecting arm is rotatably connected to the first connecting plate; the first connecting arm is provided with a first limiting engagement part; the first limiting engagement part engages with the first limiting part; the second connecting arm is provided with a second limiting engagement part; a second connecting plate, which is rotatably connected to the second connecting arm and fixedly connected to a supporting body; the second connecting plate is provided with a second limiting part; the second limiting part engages with the second limiting engagement part. This utility model, by sequentially rotating the rotating body, connecting rod, and supporting body, allows for two angle adjustments, making the position and angle of the rotating body more suitable for the user.

Description

Technical Field

[0001] This utility model relates to the field of rotating plate technology, and more specifically, to a rotating connector, a rotating support plate, and an office chair. Background Technology

[0002] With the continuous development of modern office environments, people have placed higher demands on the functionality and comfort of office chairs. Traditional office chairs typically only offer adjustable seat height and backrest angle, making it difficult to accommodate users who wish to add accessories such as trays or stands to support their use of tablets, laptops, or books while seated.

[0003] Currently, some support trays designed to solve the above problems have appeared on the market. These existing trays usually achieve the flipping function through simple hinges or pivots, but they have the following drawbacks: 1) Limited angle adjustment function: Most trays only have simple folding and unfolding functions, and cannot further adjust the position of the tray according to the user's actual sitting posture after unfolding, so as to adjust it to a more suitable position and angle for the user; 2) Complex structure and high cost: Some trays with angle adjustment functions use complex gear, pneumatic or ratchet mechanisms, which are costly to produce and bulky, making them unsuitable for the large-scale popularization and application of office chairs.

[0004] Therefore, there is a need in the field for a simple, angle-adjustable, and low-cost rotating connection mechanism for use in office chair supports, thereby solving the above problems. Utility Model Content

[0005] To address at least one of the aforementioned problems, this utility model first provides a rotating connector, comprising: a first connecting plate fixedly connected to a rotating body; the first connecting plate having a first limiting portion; a connecting rod having a first connecting arm and a second connecting arm at each end, the first connecting arm and the second connecting arm forming an angle; wherein the first connecting arm is rotatably connected to the first connecting plate; the first connecting arm having a first limiting engagement portion; the first limiting engagement portion engaging with the first limiting portion to limit the rotation angle of the rotating body relative to the first connecting arm; wherein the second connecting arm has a second limiting engagement portion; a second connecting plate rotatably connected to the second connecting arm, and the second connecting plate fixedly connected to a supporting body; wherein the second connecting plate has a second limiting portion; the second limiting portion engaging with the second limiting engagement portion to limit the rotation angle of the supporting body relative to the second connecting arm.

[0006] Optionally, the first limiting part is a limiting post fixedly connected to the first connecting plate; the rotating connecting member further includes a first limiting plate; the first limiting plate has an arc-shaped notch groove on its periphery, and the arc-shaped notch groove is configured as the first limiting mating part; the groove walls at both ends of the arc-shaped notch groove are configured as limiting stop surfaces for limiting the limiting post.

[0007] Optionally, the rotary connector further includes a first detachable connector detachably fixed to the first connecting arm; a first rotating shaft is fixed to the top of the first detachable connector; the first connecting plate is rotatably connected to the first rotating shaft; and the first limiting plate is fixed to the first rotating shaft.

[0008] Optionally, a pair of first elastic washers are fixed around the first rotating shaft; the first connecting plate is sandwiched between the pair of first elastic washers; the first elastic washers are in frictional engagement with the surface of the first connecting plate so that the first connecting plate can achieve angular positioning.

[0009] Optionally, the first connecting arm has a first mounting port at its end; the first detachable connector has a radially inwardly tapered first diameter section; the first diameter section is inserted into the first mounting port; and a first fastener is detachably connected to the periphery of the first diameter section to lock and fix the first connecting arm and the first detachable connector.

[0010] Optionally, the second limiting part is a limiting rod fixed to the bottom of the second connecting plate; the second limiting mating part is an arc-shaped sliding groove formed on the surface of the second limiting plate; and the second limiting plate is fixed to the second connecting arm.

[0011] Optionally, the rotary connector further includes a second detachable connector; the second detachable connector is fixedly connected to the second limiting plate; the second detachable connector has a radially inwardly tapered second diameter section; a second fastener is detachably connected to the periphery of the second diameter section to lock and fix the second connecting arm to the second detachable connector; the end of the second connecting arm is provided with a second mounting port; the second diameter section and the second mounting port are inserted into each other.

[0012] Optionally, the second connecting plate is fixed with a second rotating shaft; a pair of second elastic pads are fixed around the second rotating shaft; the second limiting plate is sandwiched between the pair of second elastic pads; the second limiting plate and the surface of the second elastic pads are in frictional engagement so that the second limiting plate can achieve angular positioning.

[0013] Compared to existing technologies, this invention achieves two angle adjustments by rotating the main body and connecting rods, and connecting rods and supporting main body, making the position and angle of the rotating main body more suitable for the user and better matching the user's sitting posture.

[0014] This utility model also provides a rotating pallet, including the above-mentioned rotating connector; the rotating body is a rotating pallet; the rotating pallet also has the beneficial effects of the above-mentioned rotating connector, which will not be described in detail here.

[0015] This utility model also provides an office chair, including the aforementioned rotating support plate; the supporting body is an office chair; the office chair also has the beneficial effects of the aforementioned rotating connector, which will not be described in detail here. Attached Figure Description

[0016] Figure 1 This is an overall structural diagram of the rotary connector in this utility model;

[0017] Figure 2 for Figure 1 The front view;

[0018] Figure 3 This is a structural diagram of the connecting rod in this utility model;

[0019] Figure 4 This is a schematic diagram of the installation of the first connecting plate and the first detachable connecting piece in this utility model;

[0020] Figure 5 This is a schematic diagram of the installation of the second connecting plate and the second detachable connecting piece in this utility model;

[0021] Figure 6 This is a schematic diagram of the installation of the second limiting plate and the second connecting plate in this utility model;

[0022] Figure 7 This is a schematic diagram of the structure of the second limiting plate in this utility model;

[0023] Figure 8 This is a schematic diagram of the installation of the second limiting plate and the second detachable connecting piece in this utility model;

[0024] Figure 9 This is a schematic diagram of the rotating tray in this utility model;

[0025] Figure 10 This is a schematic diagram of the structure of the first limiting plate in this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1-First connecting plate; 2-Connecting rod; 3-Second connecting plate; 4-Rotating body; 5-First limiting plate; 6-First detachable connector; 7-Second limiting plate; 8-Second detachable connector; 101-First limiting part; 201-First connecting arm; 202-Second connecting arm; 203-First limiting mating part; 204-Second limiting mating part; 205-First mounting port; 206-Second mounting port; 301-Second limiting part; 302-Second rotating shaft; 303-Second elastic washer; 601-First rotating shaft; 602-First elastic washer; 603-First diameter reduction section; 604-First fastener; 801-Second diameter reduction section; 802-Second fastener. Detailed Implementation

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0029] In the description of this utility model, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship when the product is in normal use.

[0030] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature.

[0031] This utility model provides a rotary connector; please refer to [link / reference]. Figure 1As shown, it includes: a first connecting plate 1, which is fixedly connected to the rotating body 4. The first connecting plate 1 is fixed to the rotating body 4 by having multiple mounting holes, in which fastening screws are fitted, etc.; the first connecting plate 1 is provided with a first limiting part 101; a connecting rod 2, which is provided with a first connecting arm 201 and a second connecting arm 202 at its two ends, and the first connecting arm 201 and the second connecting arm 202 form an angle, the angle of which is set as needed, preferably nearly right angle between the first connecting arm 201 and the second connecting arm 202; the height of the first connecting arm 201 is set according to the height of an average person; wherein, the first connecting arm 201 is rotatably connected to the first connecting plate 1, and since the first connecting plate 1 is fixed to the rotating body 4, the angle of the rotating body 4 towards the user can be adjusted when the rotating body 4 is rotated; the first connecting arm 201 is provided with a first limiting fitting part 203; the first limiting part 203 204 205 206 207 208 209 ... The positioning part 203 cooperates with the first limiting part 101 to limit the rotation angle of the rotating body 4 relative to the first connecting arm 201; wherein, the second connecting arm 202 is provided with a second limiting part 204; the second connecting plate 3 is rotatably connected to the second connecting arm 202, so that the connecting rod 2 can also rotate at a certain angle, thereby further adjusting the position of the rotating body 4 relative to the user, and the second connecting plate 3 can be fixedly connected to the support body by means of fastening screws or bolt and nut combinations; wherein, the second connecting plate 3 is provided with a second limiting part 301; the second limiting part 301 cooperates with the second limiting part 204 to limit the rotation angle of the support body relative to the second connecting arm 202, ensuring that the connecting rod 2 will not rotate excessively and affect the user's use. For example, when the second connecting plate 3 is fixed to the office chair, if the connecting rod 2 is not limited, the excessive rotation angle of the connecting rod 2 will cause it to hit the user.

[0032] Regarding the first limiting part 101 and the first limiting mating part 203: the first limiting part 101 is a limiting post fixedly connected to the first connecting plate 1; the rotating connector also includes the first limiting plate 5; such as Figure 10 As shown, the first limiting plate 5 has an arc-shaped notch on its periphery, and the arc-shaped notch is configured as the first limiting mating part 203; the central angle corresponding to the arc-shaped notch can be adjusted within 0°-360° as needed, such as 60°, 90°, etc., but is not limited to the angles listed above; the groove walls at both ends of the arc-shaped notch are configured as limiting stop surfaces for limiting the limiting post, thereby limiting the rotation angle of the rotating body 4.

[0033] Regarding the second limiting part 301 and the second limiting mating part 204: the second limiting part 301 is a limiting rod fixed to the bottom of the second connecting plate 3; the second limiting mating part 204 is an arc-shaped groove formed on the surface of the second limiting plate 7, the limiting rod rotates in the arc-shaped groove, the arc-shaped groove limits the angle at which the connecting rod 2 can rotate, and the central angle corresponding to the arc-shaped groove can be adjusted as needed; the second limiting plate 7 is fixed to the second connecting arm 202.

[0034] In one embodiment, such as Figure 1 , 4 As shown, the rotating connector also includes a first detachable connector 6 detachably fixed to the first connecting arm 201, which facilitates assembly and subsequent repair and replacement when parts are damaged; a first rotating shaft 601 is fixed to the top of the first detachable connector 6; the first connecting plate 1 is rotatably connected to the first rotating shaft 601, thereby keeping the first connecting plate 1 and the first detachable connector 6 in a rotatable state, so that the rotating body 4 and the connecting rod 2 remain rotatable, making it convenient for the user to adjust the rotating body 4 to a suitable position for convenient use; the first limiting plate 5 and the first rotating shaft 601 can be fixed by welding or other means.

[0035] In one embodiment, such as Figure 4 As shown, a pair of first elastic washers 602 are fixed around the first rotating shaft 601; the first connecting plate 1 is sandwiched between the pair of first elastic washers 602; the first elastic washers 602 and the surface of the first connecting plate 1 are in frictional engagement to enable the first connecting plate 1 to achieve angular positioning, so that the rotating body 4 can be fixed within a certain angle range to ensure that the user has a comfortable posture. The end of the first connecting arm 201 is provided with a first mounting port 205; the first detachable connector 6 is provided with a radially inwardly tapered first diameter reduction section 603; the first diameter reduction section 603 is inserted into the first mounting port 205 for easy installation, maintenance and replacement; the first diameter reduction section 603 is detachably connected to a first fastener 604, such as a fastening screw, to lock and fix the first connecting arm 201 and the first detachable connector 6.

[0036] In one embodiment, such as Figure 6As shown, the rotary connector also includes a second detachable connector 8; the second detachable connector 8 is fixedly connected to the second limiting plate 7, the second limiting plate 7 is horizontally fixed on the second detachable connector 8, and one side of the second limiting plate 7 is provided with a notch to facilitate welding the second limiting plate 7 to the second detachable connector 8; the second detachable connector 8 has a radially inwardly tapered second diameter reduction section 801; the second diameter reduction section 801 is detachably connected to a second fastener 802 on its periphery to lock and fix the second connecting arm 202 to the second detachable connector 8, facilitating installation and maintenance replacement; the end of the second connecting arm 202 is provided with a second mounting port 206, and the connecting rod 2 can also be a single tube, eliminating the need for a separate opening; the second diameter reduction section 801 and the second mounting port 206 are plugged into each other, and the second diameter reduction section 801 can be processed into a column shape for easy installation;

[0037] In one embodiment, such as Figure 8 As shown, the second connecting plate 3 is fixed with the second rotating shaft 302; a pair of second elastic pads 303 are fixed around the second rotating shaft 302; the second limiting plate 7 is sandwiched between the pair of second elastic pads 303; the second limiting plate 7 and the surface of the second elastic pads 303 are in frictional engagement so that the second limiting plate 7 can achieve angular positioning and will not shake at will, thus ensuring stability during use.

[0038] This utility model also provides a rotating tray, including the above-mentioned rotating connector; the rotating body 4 is a rotating tray, and its orientation angle can be adjusted by rotating the rotating body 4 so that it is closer to the user.

[0039] This utility model also provides an office chair, including the aforementioned rotating support plate; the supporting body is an office chair, and the rotating support plate is set on the outside of the armrest on one side of the office chair through the connecting rod 2, and is fixed to the office chair through the second connecting plate 3; when in use, after the user sits on the office chair, he holds the first connecting arm 201 and rotates it about 90° in front of him, and then rotates the rotating body 4 to adjust its angle to an angle that is convenient for the user to view, and then the user can comfortably use the computer for work or relax.

[0040] Although the disclosure is as stated above, the scope of protection of this disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this disclosure, and all such changes and modifications will fall within the protection scope of this utility model.

Claims

1. A rotary connector, characterized in that, include: The first connecting plate (1) is fixedly connected to the rotating body (4); the first connecting plate (1) is provided with a first limiting part (101). A connecting rod (2) is provided at both ends with a first connecting arm (201) and a second connecting arm (202), and the first connecting arm (201) and the second connecting arm (202) form an angle; The first connecting arm (201) is rotatably connected to the first connecting plate (1); the first connecting arm (201) is provided with a first limiting engagement part (203); the first limiting engagement part (203) cooperates with the first limiting part (101) to limit the rotation angle of the rotating body (4) relative to the first connecting arm (201); The second connecting arm (202) is provided with a second limiting engagement part (204). The second connecting plate (3) is rotatably connected to the second connecting arm (202), and the second connecting plate (3) is fixedly connected to the support body; The second connecting plate (3) is provided with a second limiting part (301); the second limiting part (301) cooperates with the second limiting cooperating part (204) to limit the rotation angle of the support body relative to the second connecting arm (202).

2. A rotary connector according to claim 1, characterized in that, The first limiting part (101) is a limiting post fixedly connected to the first connecting plate (1); The rotating connector also includes a first limiting plate (5); the first limiting plate (5) has an arc-shaped notch on its periphery, and the arc-shaped notch is configured as the first limiting mating part (203); the groove walls at both ends of the arc-shaped notch are configured as limiting stop surfaces for limiting the limiting post.

3. A rotary connector according to claim 2, characterized in that, It also includes a first detachable connector (6) that is detachably fixed to the first connecting arm (201); a first rotating shaft (601) is fixed to the top of the first detachable connector (6); the first connecting plate (1) is rotatably connected to the first rotating shaft (601); and the first limiting plate (5) is fixed to the first rotating shaft (601).

4. A rotary connector according to claim 3, characterized in that, A pair of first elastic pads (602) are fixed around the first rotating shaft (601); the first connecting plate (1) is sandwiched between the pair of first elastic pads (602); the first elastic pads (602) are in frictional engagement with the surface of the first connecting plate (1) so that the first connecting plate (1) can achieve angular positioning.

5. A rotary connector according to claim 3 or 4, characterized in that, The first connecting arm (201) has a first mounting port (205) at its end; the first detachable connector (6) has a first radially inwardly narrowed diameter section (603); the first narrowed diameter section (603) is inserted into the first mounting port (205); the first narrowed diameter section (603) is detachably connected to a first fastener (604) on its periphery to lock and fix the first connecting arm (201) and the first detachable connector (6).

6. A rotary connector according to claim 1, characterized in that, The second limiting part (301) is a limiting rod fixed to the bottom of the second connecting plate (3); the second limiting mating part (204) is an arc-shaped groove opened on the surface of the second limiting plate (7); the second limiting plate (7) is fixed to the second connecting arm (202).

7. A rotary connector according to claim 6, characterized in that, It also includes a second detachable connector (8); the second detachable connector (8) is fixedly connected to the second limiting plate (7); the second detachable connector (8) has a radially inwardly tapered second diameter section (801); the second diameter section (801) is detachably connected to a second fastener (802) on its periphery to lock and fix the second connecting arm (202) to the second detachable connector (8); the end of the second connecting arm (202) is provided with a second mounting port (206); the second diameter section (801) and the second mounting port (206) are inserted into each other.

8. A rotary connector according to claim 7, characterized in that, The second connecting plate (3) is fixed with a second rotating shaft (302); a pair of second elastic pads (303) are fixed around the second rotating shaft (302); the second limiting plate (7) is sandwiched between the pair of second elastic pads (303); the second limiting plate (7) and the surface of the second elastic pads (303) are in frictional engagement so that the second limiting plate (7) can achieve angular positioning.

9. A rotating pallet, characterized in that, Includes the rotary connector as described in any one of claims 1-8.

10. An office chair, characterized in that, Includes the rotating tray as described in claim 9.

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