Office seat backrest adjusting mechanism

Abstract

The utility model discloses an office seat backrest adjusting mechanism, and relates to the field of seat devices. The office seat backrest adjusting mechanism comprises a seat base, a supporting frame body is fixedly installed at the top of the seat base, and a seat cushion is fixedly installed at the top of the supporting frame body. According to the office seat backrest adjusting mechanism, the inflatable back cushion is arranged on the inner side of the backrest main body, and the inflatable back cushion and the backrest main body are fixedly mounted through the mounting assembly, so that the inflatable back cushion and the backrest main body can be mounted and used as required, and the inflatable back cushion can support the waist of a user; meanwhile, through cooperation between the adjusting assembly and the backrest body, the depth of the seat cushion can be conveniently adjusted, it is avoided that the depth of the seat cushion of the installed inflatable back cushion is changed, use of the user is affected, the structure of the backrest body is flexible, and the comfort degree of the user is improved. And on the premise that the comfort degree can be improved, the use requirements of people with different body types can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of seats, in particular to an office chair backrest adjustment mechanism. Background Art

[0002] In office spaces, it is necessary to equip some office chairs. Office chairs are common office furniture in offices. As people's office hours continue to increase, the requirements for office furniture are getting higher and higher.

[0003] A chair is composed of a backrest, a seat cushion and a support frame. The backrest of the chair is generally set according to the physiological curve of the human body. This type of chair can improve the user's comfort when in use. However, if the user sits for a long time, the waist and back will feel sore, which is not convenient for effective support as needed, thereby reducing the comfort of the chair. At the same time, the backrest structure of the office chair is relatively fixed and cannot be adaptively adjusted according to different groups of people. The versatility is poor. In view of the shortcomings of the existing technology, we propose an office chair backrest adjustment mechanism to solve the above problems. Utility Model Content

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: an office chair backrest adjustment mechanism, comprising a seat base, a support frame fixedly mounted on the top of the seat base, a seat cushion fixedly mounted on the top of the support frame, a backrest body mounted on one side of the seat cushion, an inflatable cushion disposed on the inner side of the backrest body, the inflatable cushion fixedly mounted to the backrest body via a mounting assembly, and the inflatable cushion and the backrest body being detachably disposed;

[0005] An adjustment component is provided on one side of the support frame, and the adjustment component is connected to the backrest body. The adjustment component drives the backrest body to slide and connect to the top of the seat cushion to adjust the depth of the seat cushion.

[0006] Preferably, the backrest body is fixedly connected to the support frame, and the adjustment assembly includes a fixing plate, a driving cylinder, a connecting plate, an adjustment button, and a telescopic rod.

[0007] Preferably, the fixing plate is located on the outer wall of the backrest body, the fixing plate is fixedly mounted to the support frame, the driving cylinder is mounted on the outer wall of the fixing plate, and the output end is fixedly connected to the outer wall of the backrest body.

[0008] Preferably, the telescopic rod is located between the backrest body and the fixed plate, and both ends are fixedly connected to the side walls of the backrest body and the fixed plate respectively, and the adjustment button is installed at the handle of the support frame.

[0009] Preferably, a connecting groove is provided inside the seat cushion, the connecting plate is fixedly mounted on the bottom of the backrest body, and the connecting plate is slidably connected to the inside of the connecting groove.

[0010] Preferably, the mounting assembly includes a mother Velcro, a first child Velcro, a mounting shaft, a mounting panel, and a second child Velcro. The mother Velcro is fixedly installed on the inner wall of the backrest body, and the first child Velcro is fixedly installed on the outer wall of the inflatable cushion. The mother Velcro and the first child Velcro are adhered to each other to fix the inflatable cushion to the backrest body.

[0011] Preferably, the inner wall of the backrest body is respectively provided with a first mounting groove and a second mounting groove, the first mounting groove and the second mounting groove are respectively located at the two ends of the female Velcro, and a mounting panel is provided at the top of the first mounting groove, the top of the mounting panel is fixedly connected to the backrest body, and the bottom of the mounting panel is fixedly connected to the mounting shaft.

[0012] Preferably, a second sub-velcro is installed on the inner wall of the installation panel, and the installation shaft is inserted into the inside of the second installation groove, so that the second sub-velcro is adhered to the mother Velcro, and the mother Velcro is covered by the installation panel.

[0013] The utility model discloses an office chair backrest adjustment mechanism, which has the following beneficial effects: the office chair backrest adjustment mechanism, by arranging an inflatable cushion on the inner side of a backrest main body, and fixing the inflatable cushion to the backrest main body through an installation component, the inflatable cushion and the backrest main body can be installed and used as needed, so that the inflatable cushion can support the user's waist, thereby improving the user's comfort. At the same time, through the cooperation between the adjustment component and the backrest main body, the depth of the seat cushion can be easily adjusted, avoiding the change in the depth of the seat cushion of the inflatable cushion after installation, which affects the user's use, making the backrest main body structure flexible, and can meet the use of people of different body shapes while improving comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal cross-sectional structure of the seat cushion of the utility model;

[0017] Figure 3 This is a schematic diagram of the back structure of the utility model backrest;

[0018] Figure 4 This is a schematic diagram of the backrest structure of the utility model;

[0019] Figure 5 This is a schematic diagram of the back structure of the inflatable cushion of the utility model;

[0020] Figure 6 This is a schematic diagram of the structure of the utility model after the installation panel is stored;

[0021] Figure 7 This is a schematic diagram of the structure after the new installation panel of this utility model is opened;

[0022] Figure 8 This is a schematic diagram of the back structure of the installation panel of the utility model.

[0023] In the figure: 1. Seat base; 2. Support frame; 3. Seat cushion; 4. Backrest body; 5. Inflatable cushion; 501. Mother Velcro; 502. First child Velcro; 503. Mounting shaft; 504. First mounting slot; 505. Second mounting slot; 506. Mounting panel; 507. Second child Velcro; 6. Adjustment assembly; 601. Fixing plate; 602. Driving cylinder; 603. Connecting plate; 604. Connecting slot; 605. Adjustment button; 606. Telescopic rod. DETAILED DESCRIPTION

[0024] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0026] The embodiment of the utility model discloses an office chair backrest adjustment mechanism.

[0027] According to the attached Figure 1-8As shown, it includes a seat base 1, a support frame 2 is fixedly installed on the top of the seat base 1, a seat cushion 3 is fixedly installed on the top of the support frame 2, a backrest body 4 is installed on one side of the seat cushion 3, and an inflatable cushion 5 is provided on the inner side of the backrest body 4. The inflatable cushion 5 is fixed to the backrest body 4 through an installation component, and the inflatable cushion 5 and the backrest body 4 are detachable; before use, the user can limit and fix the inflatable cushion 5 and the backrest body 4 through the installation component as needed, and then adjust the distance between the backrest body 4 and the seat cushion 3 according to the user's usage after installation, and then can adjust the depth of the seat cushion 3, so that the installed inflatable cushion 5 meets the needs of the user and improves the user's comfort.

[0028] An adjustment component 6 is provided on one side of the support frame 2, and the adjustment component 6 is connected to the backrest body 4. The adjustment component 6 drives the backrest body 4 to slide and connect to the top of the seat cushion 3 to adjust the depth of the seat cushion 3. When installing the inflatable cushion 5 through the installation component, first pick up the inflatable cushion 5 and align the first sub-Velcro 502 on the inflatable cushion 5 with the mother Velcro 501. The inflatable cushion 5 and the backrest body 4 can be installed in a limited position through the mutual adhesion of the first sub-Velcro 502 and the mother Velcro 501. The user's waist can be supported and lifted by the inflatable cushion 5, thereby improving the user's comfort.

[0029] The backrest body 4 is fixedly connected to the support frame 2, and the adjustment component 6 includes a fixing plate 601, a driving cylinder 602, a connecting plate 603, an adjustment button 605, and a telescopic rod 606. The fixing plate 601 is located on the outer wall of the backrest body 4, and the fixing plate 601 is fixedly installed on the support frame 2. The driving cylinder 602 is installed on the outer wall of the fixing plate 601, and the output end is fixedly connected to the outer wall of the backrest body 4. It should be noted that before the inflatable cushion 5 is installed on the backrest body 4, the mounting shaft 503 rolls up the mounting panel 506 and snaps the rolled-up mounting shaft 503 into the inside of the first mounting groove 504, so that the second child Velcro 507 can be separated from the mother Velcro 501, and the mounting panel 506 no longer blocks the mother Velcro 501, so that the inflatable cushion 5 can be installed and used with the backrest body 4. When the inflatable cushion 5 needs to be disassembled during use, the first child Velcro 502 is separated from the mother Velcro 501, and the inflatable cushion 5 can be disassembled as needed. Subsequently, the installation shaft 503 is disengaged from the inside of the first installation groove 504, and the installation panel 506 is opened to make the second child Velcro 507 at the installation panel 506 adhere to the mother Velcro 501, and then the installation panel 506 can be installed at the front end of the mother Velcro 501. The mother Velcro 501 is covered by the installation panel 506, so that when the user leans on the backrest body 4 during use, the mother Velcro 501 is prevented from rubbing against the user's clothes on the back, causing pilling, which affects the user's use. The installation panel 506 adopts the same fabric and material as the backrest body 4, which can improve the beauty of the backrest body 4.

[0030] The telescopic rod 606 is located between the backrest body 4 and the fixed plate 601, and its two ends are fixedly connected to the side walls of the backrest body 4 and the fixed plate 601 respectively. The adjustment button 605 is installed at the handle of the support frame 2. A connecting groove 604 is provided inside the seat cushion 3. The connecting plate 603 is fixedly installed at the bottom of the backrest body 4. The connecting plate 603 is slidably connected to the inside of the connecting groove 604. When the depth of the seat cushion 3 needs to be adjusted, the driving cylinder 602 is activated by pressing the adjustment button 605 at the handle of the support frame 2, so that the driving cylinder 602 works to drive the backrest body 4 to move forward, thereby adjusting the depth of the seat cushion 3 to meet the user's needs. The telescopic rods 606 are installed on both sides of the backrest body 4 respectively, and can freely extend and retract during the adjustment process. At the same time, the connecting plate 603 can be slidably connected to the inside of the connecting groove 604 without affecting the adjustment work of the backrest body 4, thereby ensuring the close connection between the backrest body 4 and the support frame 2.

[0031] The installation component includes a mother Velcro 501, a first child Velcro 502, a mounting shaft 503, a mounting panel 506, and a second child Velcro 507. The mother Velcro 501 is fixedly installed on the inner wall of the backrest body 4, and the first child Velcro 502 is fixedly installed on the outer wall of the inflatable cushion 5. The mother Velcro 501 and the first child Velcro 502 are adhered to each other to fix the inflatable cushion 5 and the backrest body 4.

[0032] The inner wall of the backrest body 4 is respectively provided with a first mounting groove 504 and a second mounting groove 505, and the first mounting groove 504 and the second mounting groove 505 are respectively located at the two ends of the female Velcro 501, and a mounting panel 506 is provided at the top of the first mounting groove 504, and the top of the mounting panel 506 is fixedly connected to the backrest body 4, and the bottom of the mounting panel 506 is fixedly connected to the mounting shaft 503, and the inner diameter of the first mounting groove 504 is larger than the inner diameter of the second mounting groove 505. When the mounting panel 506 is rolled up and stored by the mounting shaft 503, the diameter of the rolled-up mounting shaft 503 increases, and then the first mounting groove 504 can accommodate the mounting shaft 503 after the mounting panel 506 is rolled up.

[0033] A second sub-Velcro 507 is installed on the inner wall of the installation panel 506 , and the installation shaft 503 is inserted into the inside of the second installation groove 505 , so that the second sub-Velcro 507 is adhered to the mother Velcro 501 , and the mother Velcro 501 is covered by the installation panel 506 .

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. An office chair backrest adjustment mechanism, comprising a chair base (1), a support frame (2) fixedly mounted on the top of the chair base (1), a seat cushion (3) fixedly mounted on the top of the support frame (2), a backrest body (4) mounted on one side of the seat cushion (3), characterized in that: An inflatable cushion (5) is provided on the inner side of the backrest body (4), and the inflatable cushion (5) is fixedly mounted on the backrest body (4) via a mounting assembly, and the inflatable cushion (5) and the backrest body (4) are detachably arranged; An adjustment component (6) is provided on one side of the support frame (2), and the adjustment component (6) is connected to the backrest body (4). When the adjustment component (6) works, it drives the backrest body (4) to slide and connect to the top of the seat cushion (3) to adjust the depth of the seat cushion (3).

2. The office chair backrest adjustment mechanism according to claim 1, characterized in that: The backrest body (4) is fixedly connected to the support frame (2), and the adjustment component (6) comprises a fixing plate (601), a driving cylinder (602), a connecting plate (603), an adjustment button (605), and a telescopic rod (606).

3. The office chair backrest adjustment mechanism according to claim 2, characterized in that: The fixing plate (601) is located on the outer wall of the backrest body (4), the fixing plate (601) is fixedly mounted on the support frame (2), the driving cylinder (602) is mounted on the outer wall of the fixing plate (601), and the output end is fixedly connected to the outer wall of the backrest body (4).

4. The office chair backrest adjustment mechanism according to claim 3, characterized in that: The telescopic rod (606) is located between the backrest body (4) and the fixed plate (601), and its two ends are fixedly connected to the side walls of the backrest body (4) and the fixed plate (601), respectively. The adjustment button (605) is installed at the handle of the support frame (2).

5. The office chair backrest adjustment mechanism according to claim 4, characterized in that: A connecting groove (604) is provided inside the seat cushion (3), and the connecting plate (603) is fixedly mounted on the bottom of the backrest body (4), and the connecting plate (603) is slidably connected to the inside of the connecting groove (604).

6. The office chair backrest adjustment mechanism according to claim 5, characterized in that: The mounting assembly comprises a mother Velcro (501), a first child Velcro (502), a mounting shaft (503), a mounting panel (506), and a second child Velcro (507); the mother Velcro (501) is fixedly mounted on the inner wall of the backrest body (4); the first child Velcro (502) is fixedly mounted on the outer wall of the inflatable cushion (5); the mother Velcro (501) and the first child Velcro (502) are adhered to each other to fix the inflatable cushion (5) and the backrest body (4).

7. The office chair backrest adjustment mechanism according to claim 1, characterized in that: The inner wall of the backrest body (4) is respectively provided with a first mounting groove (504) and a second mounting groove (505), the first mounting groove (504) and the second mounting groove (505) are respectively located at the two ends of the female Velcro (501), the top of the first mounting groove (504) is provided with a mounting panel (506), the top of the mounting panel (506) is fixedly connected to the backrest body (4), and the bottom of the mounting panel (506) is fixedly connected to the mounting shaft (503).

8. The office chair backrest adjustment mechanism according to claim 7, characterized in that: The inner wall of the installation panel (506) is installed with a second sub-velcro (507), and the installation shaft (503) is inserted into the interior of the second installation groove (505), so that the second sub-velcro (507) is adhered to the mother Velcro (501), and the mother Velcro (501) is covered by the installation panel (506).

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