Ergonomic seat

Abstract

The utility model discloses an ergonomic seat, which belongs to the technical field of ergonomic seats and comprises a base body, a lifting support column is fixedly mounted at the center of the top of the base body, a fixing seat is fixedly mounted at the top of the lifting support column, and fixing frames are mounted on two sides of the lower surface of the fixing seat. The first rotating shaft is driven to rotate by rotating the rotating handle, and the second rotating shaft is driven to rotate through belt transmission, so that the first conical tooth is driven to rotate, the second conical tooth meshed with the first conical tooth is driven to rotate together, and the rotating shaft and the worm are driven to rotate synchronously; the inclination angle of the back cushion is freely adjusted according to the requirements of a user, and it is worthy of notice that the worm gear and the worm are meshed to have a self-locking function, so that the user can more conveniently adjust the back cushion in real time.

Description

Technical Field

[0001] The utility model relates to the technical field of ergonomic chairs, in particular to an ergonomic chair. Background Art

[0002] The so-called ergonomics, in essence, is to make the use of tools as suitable as possible for the natural form of the human body, so that the person using the tool does not need any active physical and mental adaptation when working, thereby minimizing the fatigue caused by the use of tools. Office chairs are indispensable office chairs equipped in the office area. There are many kinds of office chairs on the market, but most of them are difficult to meet ergonomics, resulting in low comfort in the use of office chairs;

[0003] The backrest of the ergonomic chair currently on the market is manually adjusted. For people who often need to change their sitting posture or have different weights, the inclination angle of the backrest needs to be manually readjusted, that is, the limit of the backrest needs to be released. Most of them are fixed by threads. After the limit is released, the inclination of the backrest is adjusted according to the needs of the user. Therefore, the existing ergonomic chairs are not convenient for adjusting the inclination angle of the backrest. Summary of the invention

[0004] In view of the above-mentioned technical deficiencies, the purpose of the present invention is to provide an ergonomic chair, which solves the problem of inconvenient adjustment of the backrest inclination angle of the existing ergonomic chairs mentioned in the above-mentioned background technology by designing an adjustment component.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: the utility model provides an ergonomic chair, including a base body, a lifting support column is fixedly installed at the center of the top of the base body, a fixed seat is fixedly installed on the top of the lifting support column, fixed frames are installed on both sides of the lower surface of the fixed seat, two groups of fixed frames are installed with fixed rings at the rear ends, an adjustment component is installed between the two groups of fixed rings, the two groups of fixed rings are rotatably connected with rotating rings, one side of the two groups of rotating rings is fixedly connected with connecting rods, cushions are installed on the upper ends of the two groups of connecting rods, and a protective component is installed on the bottom end of the front side of the cushion;

[0006] The adjusting assembly includes a fixed box fixedly installed at the rear end of the fixed seat, one side of the fixed box is rotatably connected to the first rotating shaft through a bearing, and the fixed box is located on one side of the first rotating shaft and is rotatably connected to the second rotating shaft through a bearing, the first rotating shaft and the second rotating shaft are both sleeved on the outer sides of one end, and the two sets of pulleys are connected by belt transmission, one end of the second rotating shaft is fixedly installed with a first conical tooth, one side of the first conical tooth is meshed with a second conical tooth, the bottom end of the second conical tooth is provided with a rotating shaft, and the rotating shaft is connected to the bottom of the inner cavity of the fixed box through a bearing, and a worm is fixedly installed on the top of the rotating shaft, and the inner sides of the two groups of the rotating rings are fixedly sleeved with rotating columns, a connecting column is fixedly connected between the two groups of the rotating columns, and a worm wheel is sleeved at the center of the outer side of the connecting column.

[0007] Preferably, a movable groove is provided at the center of one side of the fixing box close to the worm wheel, and the worm wheel is located in the movable groove and meshes with the worm.

[0008] Preferably, one end of the first rotating shaft extends to the outside of the fixing box and is fixedly mounted with a rotating handle, and the outside of the rotating handle is provided with anti-slip grooves.

[0009] Preferably, the protection component includes an airbag cushion fixedly mounted on the bottom end of the front side of the cushion, the bottom end of the airbag cushion is fixedly connected to an air supply hose, the other end of the air supply hose is fixedly connected to a manual air pump, one side of the manual air pump is fixedly connected to an air intake pipe, and springs are fixedly connected to the upper and lower ends of the manual air pump.

[0010] Preferably, one end of the air delivery hose and the air intake pipe are both equipped with a one-way sheet, and one end of the airbag cushion is provided with an air release port.

[0011] Preferably, a plurality of adjustment sockets are provided on both sides of the fixing seat, and armrests are inserted into the adjustment sockets.

[0012] Preferably, a seat cushion is installed on the upper surface of the fixed seat, and the seat cushion and the back cushion are both made of sponge material, and a plurality of groups of rollers are installed on the bottom of the base body.

[0013] The beneficial effects of the utility model are:

[0014] The utility model drives the first rotating shaft to rotate by rotating the rotating handle, and drives the second rotating shaft to rotate through the belt transmission, thereby driving the first conical tooth to rotate, and drives the second conical tooth meshing therewith to rotate together, thereby driving the rotating shaft and the worm to rotate synchronously. At this time, the worm wheel meshing therewith rotates, and then drives the connecting column to rotate together, thereby driving the rotation of the cushion, and the inclination angle of the cushion can be freely adjusted according to the needs of the user. It is worth noting that the meshing of the worm wheel and the worm has a self-locking function, which makes it more convenient for the user to adjust the cushion in real time.

[0015] The utility model uses a manual air pump that is pinched by hand. When the manual air pump is squeezed, the gas in the manual air pump can be squeezed and transported to the airbag cushion through the air delivery hose. At the same time, the spring is also squeezed, so that the spring is in a compressed state. After the hand is released, the manual air pump is lifted up by the elastic force of the spring itself. The manual air pump sucks external gas into the manual air pump through the air intake pipe under a negative pressure state. When the airbag cushion needs to be deflated, it is deflated through an air deflation port arranged on one side, so that people of different body shapes can sit and work or study more comfortably. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic structural diagram of an ergonomic chair provided in an embodiment of the utility model.

[0018] Figure 2 It is a schematic diagram of the overall back structure of the utility model.

[0019] Figure 3 It is a cross-sectional view of the fixing box of the utility model.

[0020] Figure 4 This is a schematic diagram of the protective component structure of the utility model.

[0021] Explanation of the reference numerals: 100 - base body, 110 - roller, 120 - lifting support column, 130 - fixed seat, 131 - adjustment socket, 140 - armrest, 150 - cushion, 160 - fixed frame, 170 - fixed ring, 180 - rotating ring, 190 - connecting rod, 1910 - cushion, 200 - adjustment component, 210 - fixed box, 220 - first rotating shaft, 230 - second rotating shaft, 240 - belt, 250 - first conical tooth, 260 - second conical tooth, 270 - worm, 280 - rotating column, 290 - connecting column, 2910 - worm wheel, 2920 - rotating handle, 300 - protection component, 310 - airbag cushion, 311 - air release port, 320 - air supply hose, 330 - manual air pump, 340 - air intake pipe, 350 - spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0023] like Figures 1 to 4 As shown, this embodiment provides an ergonomic chair, including a base body 100, a lifting support column 120 is fixedly installed at the center of the top of the base body 100, a fixing seat 130 is fixedly installed on the top of the lifting support column 120, fixing frames 160 are installed on both sides of the lower surface of the fixing seat 130, and fixing rings 170 are installed at the rear ends of the two sets of fixing frames 160. An adjustment component 200 is installed between the two sets of fixing rings 170, and a rotating ring 180 is rotatably connected in the two sets of fixing rings 170. One side of the two sets of rotating rings 180 is fixedly connected to a connecting rod 1 90, a cushion 1910 is installed on the upper end of the two groups of connecting rods 190, a protective assembly 300 is installed on the front bottom of the cushion 1910, a plurality of adjustment sockets 131 are opened on both sides of the fixed seat 130, and an armrest 140 is inserted into the adjustment socket 131, a cushion 150 is installed on the upper surface of the fixed seat 130, and the cushion 150 and the cushion 1910 are both made of sponge, and a plurality of rollers 110 are installed at the bottom of the base body 100; the adjustment assembly 200 includes a fixed box 210 fixedly installed at the rear end of the fixed seat 130, and a fixed box 210 has a The first rotating shaft 220 is rotatably connected to the side of the fixed box 210 through a bearing, and the second rotating shaft 230 is rotatably connected to the side of the first rotating shaft 220 through a bearing. The first rotating shaft 220 and the second rotating shaft 230 are both sleeved with pulleys on the outer sides of one end, and the two sets of pulleys are connected through a belt 240. A first conical tooth 250 is fixedly installed on one end of the second rotating shaft 230, and a second conical tooth 260 is meshed on one side of the first conical tooth 250. A rotating shaft is provided at the bottom end of the second conical tooth 260, and the rotating shaft is connected to the bottom of the inner cavity of the fixed box 210 through a bearing. A worm 270 is fixedly installed on the top of the rotating shaft, and rotating columns 280 are fixedly sleeved on the inner sides of the two sets of rotating rings 180. A connecting column 290 is fixedly connected between the two sets of rotating columns 280. A worm wheel 2910 is sleeved at the center of the outer side of the connecting column 290. A movable groove is opened at the center of one side of the fixed box 210 close to the worm wheel 2910. The worm wheel 2910 is located in the movable groove and meshes with the worm 270. One end of the first rotating shaft 220 extends to the outside of the fixed box 210 and is fixedly installed with a rotating handle 2920. The outer side of the rotating handle 2920 is provided with anti-slip grooves.

[0024] Principle of this embodiment: When the user needs to adjust the inclination angle of the cushion 1910, the user rotates the handle 290 to drive the first rotating shaft 220 to rotate, and drives the second rotating shaft 230 to rotate through the belt 240, thereby driving the first conical tooth 250 to rotate, and driving the second conical tooth 260 meshing therewith to rotate together, thereby driving the rotating shaft and the worm 270 to rotate synchronously, and at this time, the worm wheel 2910 meshing therewith rotates, thereby driving the connecting column 290 to rotate together, thereby driving the rotating columns 280 at both ends to rotate together, and the belt The rotating ring 180 rotates, and the rotating ring 180 rotates in the fixed ring 170 through the bearing, driving the connecting rod 190 fixed to one side of the rotating ring 180 to rotate, thereby adjusting the inclination angle of the cushion 1910 according to the needs of the user. It is worth noting that the meshing of the worm wheel 280 and the worm 250 has a self-locking function, so the user can more conveniently adjust the cushion 1910 in real time; through the adjustment socket 131 opened on the fixed seat 130, users of different body shapes can adjust the position of the armrest 140. Example

[0025] like Figure 2 , 4 As shown, on the basis of retaining all the technical features in specific embodiment one (or the difference between this embodiment and specific embodiment one is that), in this embodiment: the protection component 300 includes an airbag cushion 310 fixedly installed at the bottom end of the front side of the cushion 1910, the bottom end of the airbag cushion 310 is fixedly connected to an air supply hose 320, the other end of the air supply hose 320 is fixedly connected to a manual air pump 330, one side of the manual air pump 330 is fixedly connected to an air intake pipe 340, the upper and lower ends of the manual air pump 330 are fixedly connected to a spring 350, one end of the air supply hose 320 and the air intake pipe 340 are both installed with a one-way sheet, and one end of the airbag cushion 310 is provided with an air release port 311.

[0026] Principle of this embodiment: The size of the airbag cushion 310 is adjusted according to the user's body shape or usage requirements. The manual air pump 330 is pinched by hand. When the manual air pump 330 is squeezed, the gas in the manual air pump 330 can be squeezed through the air delivery hose 320 and delivered to the airbag cushion 310. At the same time, the spring 350 is also squeezed, so that the spring 350 is in a compressed state. After releasing the hand, the manual air pump 330 is lifted up by the elastic force of the spring 350 itself. The manual air pump 330 sucks the external gas into the manual air pump 330 through the air intake pipe 340 under the negative pressure state. One-way sheets are installed at one end of the air delivery hose 320 and the air intake pipe 340, so that the gas can only enter from the air intake pipe 340 and be output from the air delivery hose 320. When the airbag cushion 310 needs to be deflated, it is deflated through the deflation port 311 set on one side, so that people of different body shapes can sit and work or study more comfortably.

[0027] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An ergonomic chair, characterized in that: The invention comprises a base body (100), wherein a lifting support column (120) is fixedly installed at the center of the top of the base body (100), a fixing seat (130) is fixedly installed on the top of the lifting support column (120), fixing frames (160) are installed on both sides of the lower surface of the fixing seat (130), fixing rings (170) are installed at the rear ends of two groups of fixing frames (160), an adjustment component (200) is installed between the two groups of fixing rings (170), rotating rings (180) are rotatably connected inside the two groups of fixing rings (170), one side of the two groups of rotating rings (180) is fixedly connected to a connecting rod (190), cushions (1910) are installed on the upper ends of the two groups of connecting rods (190), and a protective component (300) is installed on the front bottom end of the cushion (1910); The adjustment assembly (200) comprises a fixing box (210) fixedly mounted on the rear end of the fixing seat (130); a first rotating shaft (220) is rotatably connected to one side of the fixing box (210) via a bearing; a second rotating shaft (230) is rotatably connected to one side of the first rotating shaft (220) via a bearing in the fixing box (210); a pulley is sleeved on one end of each of the first rotating shaft (220) and the second rotating shaft (230); the two sets of pulleys are connected to each other via a belt (240); and one end of the second rotating shaft (230) is fixedly mounted A first conical tooth (250) is provided, and a second conical tooth (260) is meshed on one side of the first conical tooth (250). A rotating shaft is provided at the bottom end of the second conical tooth (260), and the rotating shaft is connected to the bottom of the inner cavity of the fixed box (210) through a bearing. A worm (270) is fixedly installed on the top end of the rotating shaft. A rotating column (280) is fixedly sleeved on the inner side of the two groups of rotating rings (180). A connecting column (290) is fixedly connected between the two groups of rotating columns (280), and a worm wheel (2910) is sleeved at the center of the outer side of the connecting column (290).

2. An ergonomic chair as claimed in claim 1, characterized in that: A movable groove is provided at the center of one side of the fixed box (210) close to the worm wheel (2910), and the worm wheel (2910) is located in the movable groove and meshes with the worm (270).

3. The ergonomic chair according to claim 1, characterized in that: One end of the first rotating shaft (220) extends to the outside of the fixing box (210) and is fixedly mounted with a rotating handle (2920), and an anti-slip pattern is provided on the outside of the rotating handle (2920).

4. The ergonomic chair according to claim 1, characterized in that: The protection component (300) comprises an airbag cushion (310) fixedly mounted on the bottom end of the front side of the back cushion (1910); the bottom end of the airbag cushion (310) is fixedly connected to an air delivery hose (320); the other end of the air delivery hose (320) is fixedly connected to a manual air pump (330); one side of the manual air pump (330) is fixedly connected to an air intake pipe (340); and the upper and lower ends of the manual air pump (330) are fixedly connected to a spring (350).

5. An ergonomic chair as claimed in claim 4, characterized in that: One-way sheets are installed at one end of the air delivery hose (320) and the air intake pipe (340), and an air release port (311) is provided at one end of the airbag cushion (310).

6. The ergonomic chair according to claim 1, characterized in that: A plurality of groups of adjustment sockets (131) are provided on both sides of the fixing seat (130), and armrests (140) are inserted into the adjustment sockets (131).

7. The ergonomic chair according to claim 1, characterized in that: A seat cushion (150) is installed on the upper surface of the fixed seat (130); the seat cushion (150) and the back cushion (1910) are both made of sponge material; and a plurality of groups of rollers (110) are installed on the bottom of the base body (100).

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