A rapid installation device for office desk chair armrest

Abstract

The utility model discloses an office table and chair handrail quick installation equipment relates to table and chair installation technical field, including mounting bracket and handrail fixing device, the right side of mounting bracket has placed office chair, and the front and back both sides of office chair all are installed with handrail, and the surface of two handrails all is installed with two bolts, handrail fixing device includes two sliding blocks, two -way screw rod, rotating shaft, disc, two movable rods and two arc fixed plates, and the right side of mounting bracket is provided with two recesss, and two sliding blocks are slidably connected in the inside of rear recess, and two -way screw rod is screwed in the inside of two sliding blocks, and the front and back both ends of two -way screw rod are provided with opposite thread, and rotating shaft rotatably installs in the inside of mounting bracket, and the person of installing is more convenient to fix handrail through directly rotating disc, and only needs a hand to rotate bolt to complete the installation of handrail, and the convenience of the person of installing to handrail is improved.

Description

Technical Field

[0001] This utility model relates to the field of table and chair installation technology, and in particular to a quick installation device for office desk and chair armrests. Background Technology

[0002] Office desks and chairs refer to tables and chairs used in offices. In terms of materials, office chairs can be made of genuine leather, PU leather, fabric, mesh, plastic, etc. In terms of usage, they can be divided into executive chairs, work chairs, staff chairs, supervisor chairs, conference chairs, etc. In terms of usage, they cover offices, conference rooms, staff dormitories, staff canteens, etc.

[0003] Modern minimalist office chairs feature clean lines that complement the desk. These chairs are typically ergonomically designed with armrests and backrests to better support the lower back and reduce fatigue from prolonged sitting. The armrests are usually bolted to the sides of the chair. Installers need to use one hand to support the armrest while placing it on the chair, and then use the other hand to tighten the bolts. This process requires both hands, and the lightweight nature of office chairs makes them prone to shifting during installation, complicating the ease of tightening the bolts and hindering the overall installation convenience. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a quick installation device for office desk and chair armrests. This device solves the problem that installers need to use one hand to fix the armrest and the other hand to rotate the bolts. In addition, the office chair is relatively light, and the office chair is easy to move when the installer is installing the armrests, which affects the convenience of the installer to rotate the bolts. Furthermore, the installer needs to use both hands, which affects the convenience of the installer in installing the armrests.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick installation device for office desk and chair armrests, including a mounting frame and an armrest fixing device; an office chair is placed on the right side of the mounting frame, and armrests are installed on both the front and rear sides of the office chair, with two bolts installed on the surface of each armrest; the armrest fixing device includes two sliders, a bidirectional threaded rod, a rotating shaft, a disc, two moving rods, and two arc-shaped fixing plates; two grooves are provided on the right side of the mounting frame, and the two sliders are slidably connected inside the rear groove; the bidirectional threaded rod is threadedly sleeved inside the two sliders, and the front and rear ends of the bidirectional threaded rod have threads in opposite directions; the rotating shaft is rotatably installed inside the mounting frame, and the front end of the rotating shaft is fixedly connected to the rear end of the bidirectional threaded rod, with the rear end of the rotating shaft extending to the outside of the mounting frame; the disc is fixedly connected to the rear end of the rotating shaft.

[0006] Preferably, the mounting bracket has a sliding groove on its right side, and a sliding rod is slidably connected inside the sliding groove.

[0007] Preferably, the slide bar is internally threaded with a threaded rod, which is rotatably mounted inside the mounting bracket.

[0008] Preferably, the upper end of the threaded rod extends to the outside of the mounting bracket, and a turntable is fixedly connected to the upper end of the threaded rod.

[0009] Preferably, a pressure rod is fixedly connected to the right end of the slide rod, and the lower end of the pressure rod is fixedly connected to a rubber pressure plate, with the bottom of the rubber pressure plate in contact with the surface of the office chair.

[0010] Preferably, the two movable rods are fixedly connected to the right side of the two sliders, and the two arc-shaped fixing plates are fixedly connected to the right end of the two movable rods.

[0011] Preferably, both of the arc-shaped fixing plates are clamped on the surface of the handrail, and the interiors of the two grooves have the same structure.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This quick-installation device for office desk and chair armrests eliminates the need for installers to use one hand to hold the armrest and the other hand to rotate the bolts. The rubber pressure plate secures the office chair, preventing movement during armrest installation and improving the ease of bolt rotation. Furthermore, the device allows for easy armrest fixation by directly rotating the disc, requiring only one hand to rotate the bolts and complete the installation. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0015] Figure 1This is a schematic diagram of the overall structure of a quick-installation device for office desk and chair armrests according to the present invention;

[0016] Figure 2 This is a schematic diagram of the surface structure of the mounting bracket of this utility model;

[0017] Figure 3 This is a cross-sectional structural diagram of the mounting bracket of this utility model;

[0018] Figure 4 This is a schematic diagram of the surface structure of the office chair of this utility model.

[0019] Reference numerals: 1. Mounting bracket; 2. Office chair; 3. Armrest; 4. Bolt; 5. Slide groove; 6. Slide rod; 7. Threaded rod; 8. Turntable; 9. Pressure rod; 10. Rubber pressure plate; 11. Groove; 12. Slider; 13. Two-way threaded rod; 14. Rotating shaft; 15. Disc; 16. Moving rod; 17. Arc-shaped fixing plate. Detailed Implementation

[0020] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0021] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0023] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0024] Please see Figure 1-4This utility model provides a technical solution: a quick installation device for office chair armrests, including a mounting frame 1 and an armrest fixing device. An office chair 2 is placed on the right side of the mounting frame 1. Armrests 3 are installed on both the front and rear sides of the office chair 2. Two bolts 4 are installed on the surface of each armrest 3. A sliding groove 5 is opened on the right side of the mounting frame 1. A sliding rod 6 is slidably connected inside the sliding groove 5. A threaded rod 7 is threadedly connected inside the sliding rod 6. The threaded rod 7 is rotatably installed inside the mounting frame 1. The upper end of the threaded rod 7 extends to the outside of the mounting frame 1. A turntable 8 is fixedly connected to the upper end of the threaded rod 7. A pressure rod 9 is fixedly connected to the right end of the sliding rod 6. The lower end of the pressure rod 9 is fixedly connected to a rubber pressure plate 10. The bottom of the rubber pressure plate 10 is in contact with the surface of the office chair 2.

[0025] After the installer places the office chair 2 on the right side of the mounting bracket 1, they rotate the turntable 8. The rotation of the turntable 8 causes the threaded rod 7 to rotate, which in turn causes the slide rod 6 to slide downward. The slide rod 6 then causes the pressure rod 9 and the rubber pressure plate 10 to slide downward and press against the surface of the office chair 2. The rubber pressure plate 10 then fixes the office chair 2 in place, ensuring the stability of the office chair 2 during the installation of the armrests 3.

[0026] The handrail fixing device includes two sliders 12, a bidirectional threaded rod 13, a rotating shaft 14, a disc 15, two moving rods 16, and two arc-shaped fixing plates 17. Two grooves 11 are provided on the right side of the mounting frame 1. The two sliders 12 are slidably connected to the inside of the rear groove 11. The bidirectional threaded rod 13 is threadedly sleeved inside the two sliders 12. The front and rear ends of the bidirectional threaded rod 13 are provided with threads in opposite directions. The rotating shaft 14 is rotatably installed inside the mounting frame 1. The front end of the rotating shaft 14 is fixedly connected to the rear end of the bidirectional threaded rod 13. The rear end of the rotating shaft 14 extends to the outside of the mounting frame 1. The disc 15 is fixedly connected to the rear end of the rotating shaft 14. The two moving rods 16 are respectively fixedly connected to the right side of the two sliders 12. The two arc-shaped fixing plates 17 are respectively fixedly connected to the right end of the two moving rods 16. The two arc-shaped fixing plates 17 are clamped on the surface of the handrail 3. The two grooves 11 have the same structure inside.

[0027] After the office chair 2 is fixed in place, the installer can take out an armrest 3 and place it on the back of the office chair 2. Then, the installer directly rotates the disc 15. The rotation of the disc 15 drives the double-threaded rod 13 to rotate via the rotating shaft 14. The rotation of the double-threaded rod 13 causes the two sliders 12 to slide relative to each other. The relative sliding of the two sliders 12 causes the two moving rods 16 to slide relative to each other. The sliding of the two moving rods 16 causes the two arc-shaped fixing plates 17 to slide relative to each other and clamp onto the surface of the armrest 3, thus fixing the armrest 3 to the surface of the office chair 2. At this point, the installer can release the armrest 3, and... The armrest 3 is fixed by rotating two bolts 4 with a wrench. The installer can install another armrest 3 in the same way. The installer no longer needs to use one hand to fix the armrest 3 and the other hand to rotate the bolts. The office chair 2 is fixed by the rubber pressure plate 10, which prevents the office chair 2 from moving when the installer is installing the armrest 3. This improves the convenience of the installer to rotate the bolts 4. In addition, it is more convenient for the installer to fix the armrest 3 by directly rotating the disc 15. Only one hand is needed to rotate the bolts 4 to complete the installation of the armrest 3, which improves the convenience of the installer.

[0028] Structural Description:

[0029] Mounting bracket 1: Serves as the basic support structure for the entire installation equipment, providing installation positions for other components; the right side is used to place office chair 2, and a threaded rod 7 is rotatably installed inside it. The right side is also provided with a sliding groove 5 and a recess 11.

[0030] Office chair 2: The object to be installed with armrests 3 is placed on the right side of the mounting bracket 1 and will be fixed by the rubber pressure plate 10 during the installation process to ensure stability;

[0031] Armrest 3: A component that needs to be installed on the front and back sides of office chair 2 and fixed to office chair 2 with bolts 4;

[0032] Bolt 4: Used to fix armrest 3 to office chair 2. The installer uses a wrench to rotate bolt 4 to complete the fixing and installation of armrest 3.

[0033] Slide 5: Located on the right side of the mounting bracket 1, it provides a sliding track for the slide rod 6, allowing the slide rod 6 to slide up and down within it;

[0034] Slide rod 6: It is slidably connected inside the slide groove 5 and is threadedly connected to the threaded rod 7 inside; when the threaded rod 7 rotates, the slide rod 6 will slide up and down inside the slide groove 5, thereby driving the pressure rod 9 and the rubber pressure plate 10 to move.

[0035] Threaded rod 7: Rotatably mounted inside the mounting bracket 1, with its upper end extending to the outside of the mounting bracket 1 and fixedly connected to the turntable 8; by rotating the threaded rod 7, the slide rod 6 can be driven to slide within the slide groove 5;

[0036] Turntable 8: It is fixedly connected to the upper end of the threaded rod 7. When the installer rotates the turntable 8, it will drive the threaded rod 7 to rotate, thereby adjusting the position of the slide rod 6.

[0037] Pressure rod 9: The right end is fixedly connected to the slide rod 6, and the lower end is fixedly connected to the rubber pressure plate 10; when the slide rod 6 slides up and down, the pressure rod 9 will drive the rubber pressure plate 10 to move together;

[0038] Rubber pressure plate 10: Fixed to the lower end of pressure rod 9, its bottom can contact the surface of office chair 2; the rubber pressure plate 10 squeezes the office chair 2 to fix the office chair 2 and ensure the stability of the office chair 2 during installation.

[0039] Grooves 11: Two grooves are provided on the right side of the mounting bracket 1 to provide space for the slider 12 to slide. The two grooves 11 have the same structure inside for fixing the handrail 3.

[0040] Slider 12: It is slidably connected inside the groove 11, and the internal thread is connected to the bidirectional threaded rod 13; when the bidirectional threaded rod 13 rotates, the two sliders 12 will slide relative to each other inside the groove 11.

[0041] Bidirectional threaded rod 13: It is threaded inside the two sliders 12, and its front and rear ends are provided with threads in opposite directions; when the bidirectional threaded rod 13 rotates, it will drive the two sliders 12 to slide relative to each other or in opposite directions.

[0042] Rotating shaft 14: Rotatably mounted inside the mounting bracket 1, with its front end fixedly connected to the rear end of the bidirectional threaded rod 13, and its rear end extending to the outside of the mounting bracket 1 and fixedly connected to the disc 15; by rotating the disc 15, the bidirectional threaded rod 13 can be rotated through the rotating shaft 14.

[0043] Disc 15: It is fixedly connected to the rear end of the rotating shaft 14. When the installer rotates the disc 15, it can drive the rotating shaft 14 and the bidirectional threaded rod 13 to rotate, thereby controlling the sliding of the slider 12.

[0044] Movable rod 16: It is fixedly connected to the right side of the two sliders 12 respectively. When the sliders 12 slide, the movable rod 16 will move accordingly, thereby driving the arc-shaped fixed plate 17 to move.

[0045] Arc-shaped fixing plates 17: These are fixedly connected to the right ends of the two moving rods 16 respectively. The two arc-shaped fixing plates 17 can slide relative to each other and clamp onto the surface of the armrest 3, fixing the armrest 3 to the surface of the office chair 2, making it convenient for installers to install the bolts 4.

[0046] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A quick installation device for office desk and chair armrests, characterized in that, include: Mounting bracket (1) and handrail fixing device; An office chair (2) is placed on the right side of the mounting bracket (1). Armrests (3) are installed on both the front and back sides of the office chair (2). Two bolts (4) are installed on the surface of each armrest (3). The handrail fixing device includes two sliders (12), a double-threaded rod (13), a rotating shaft (14), a disc (15), two moving rods (16), and two arc-shaped fixing plates (17). Two grooves (11) are opened on the right side of the mounting frame (1). The two sliders (12) are slidably connected inside the rear groove (11). The double-threaded rod (13) is threaded inside the two sliders (12). The front and rear ends of the double-threaded rod (13) are provided with threads in opposite directions. The rotating shaft (14) is rotatably installed inside the mounting frame (1). The front end of the rotating shaft (14) is fixedly connected to the rear end of the double-threaded rod (13). The rear end of the rotating shaft (14) extends to the outside of the mounting frame (1). The disc (15) is fixedly connected to the rear end of the rotating shaft (14).

2. The quick installation device for office desk and chair armrests according to claim 1, characterized in that: The mounting bracket (1) has a groove (5) on its right side, and a slide rod (6) is slidably connected inside the groove (5).

3. The quick installation device for office desk and chair armrests according to claim 2, characterized in that: The slide bar (6) is internally threaded with a threaded rod (7), which is rotatably mounted inside the mounting bracket (1).

4. The quick installation device for office desk and chair armrests according to claim 3, characterized in that: The upper end of the threaded rod (7) extends to the outside of the mounting bracket (1), and a turntable (8) is fixedly connected to the upper end of the threaded rod (7).

5. The quick installation device for office desk and chair armrests according to claim 4, characterized in that: The right end of the slide bar (6) is fixedly connected to a pressure bar (9), and the lower end of the pressure bar (9) is fixedly connected to a rubber pressure plate (10). The bottom of the rubber pressure plate (10) is in contact with the surface of the office chair (2).

6. The quick installation device for office desk and chair armrests according to claim 1, characterized in that: The two movable rods (16) are fixedly connected to the right side of the two sliders (12), and the two arc-shaped fixing plates (17) are fixedly connected to the right end of the two movable rods (16).

7. The quick installation device for office desk and chair armrests according to claim 6, characterized in that: Both of the arc-shaped fixing plates (17) are clamped on the surface of the handrail (3), and the interior of the two grooves (11) has the same structure.

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