CN216364348U - Seat adjusting structure of doctor seat - Google Patents

Abstract

The utility model relates to a chair seat adjusting structure of a doctor chair, which comprises a chair part with a base and a cushion, a chair rest part with a backrest and a back cushion, and a seat rod, wherein the base comprises a fixed seat, a sliding seat and a seat plate, the cushion is arranged on the seat plate, the backrest comprises a lower leaning rod and an upper leaning rod, the back cushion is arranged on the lower leaning rod or/and the upper leaning rod, the seat rod comprises an inner loop rod and an outer loop rod, the chair seat adjusting structure comprises a turnover mechanism arranged between the sliding seat and the seat plate for driving the seat plate to turn around the horizontal direction, and a lifting mechanism for driving the inner loop rod and the outer loop rod to relatively extend or shorten. The utility model not only can implement the front-back and up-down adjustment of the chair, but also can implement the angle adjustment of the chair part and the chair backrest part, and particularly the chair backrest part can also adjust the height, so that the chair seat can meet the optimal support required by different doctors during work or rest.

Description

Seat adjusting structure of doctor seat

Technical Field

The utility model belongs to the field of medical instruments, and particularly relates to a chair seat adjusting structure of a doctor chair.

Background

As is well known, when a doctor performs an examination or a treatment operation for a long time, physical fatigue is likely to occur, and if the fatigue of the limbs cannot be relieved, the operation is unstable, and the result of the treatment or the examination is directly affected.

At present, for a doctor seat, the doctor seat comprises a seat, armrests and a walking wheel assembly, wherein the adopted seat can only ascend and descend vertically, so that the seat cannot support at a proper angle and position (mainly front and back and up and down) when a doctor takes a rest or works, and due to the difference of body types of the doctor, the common seat is difficult to meet the requirements of working or resting.

Disclosure of Invention

The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide an improved chair seat adjusting structure of a doctor chair.

In order to solve the technical problems, the utility model adopts the following technical scheme:

a chair seat adjusting structure of a doctor chair comprises a chair seat part with a base and a cushion, a backrest part with a backrest and a back cushion, and a seat rod, wherein the base comprises a fixed seat, a sliding seat arranged on the fixed seat in a sliding manner along the front-back direction of the fixed seat, and a seat plate arranged on the sliding seat, the cushion is arranged on the seat plate, the backrest comprises a lower leaning rod of which the lower end part is in butt joint with the sliding seat, an upper leaning rod which rotates with the lower leaning rod and is movably adjusted along the length direction of the lower leaning rod, the back cushion is arranged on the lower leaning rod or/and the upper leaning rod, the seat rod comprises an inner loop rod and an outer loop rod, the inner loop rod is fixed on a chassis of the doctor chair from the lower end part, the outer loop rod is arranged in a vertical relative movement manner along the length direction of the inner loop rod, the upper end part of the inner loop rod is fixed on the fixed seat, and the chair seat adjusting structure comprises a turnover mechanism arranged between the sliding seat and the seat plate for driving the seat plate to overturn around the horizontal direction, And the lifting mechanism is used for driving the inner loop bar and the outer loop bar to relatively extend or contract.

Preferably, the seat plate is pivotally connected to the front end of the slide carriage by a pivot, and conceals the tilting mechanism between the seat plate and the slide carriage. Thus, the angle of the seat plate can be adjusted by driving the rear end of the seat plate to swing up and down.

According to a specific implementation and preferable aspect of the utility model, the fixed seat is provided with a slide rail extending along the front-rear direction, the slide seat comprises a seat body arranged on the slide rail in a sliding manner, a control arm rod connected with the seat body and capable of being locked with the fixed seat relatively, and a mounting seat arranged on the seat body, the seat plate is mounted on the mounting seat, the control arm rod is subjected to external force and kept to be separated from the fixed seat for unlocking under the external force, and the slide seat slides along the length direction of the slide rail; the external force applied to the control arm rod disappears, and the control arm rod resets and is locked with the fixed seat. Therefore, the seat can be positioned by adjusting the front and back positions of the seat in the movement and reset of the control arm rod, and the seat is very convenient.

Preferably, the control arm rod extends forwards from the front end part of the seat body and is positioned below the seat part, the control arm rod is rotatably arranged on the seat body from the rear end part, a tension spring for keeping the control arm rod and the seat body to be relatively attached is arranged between the control arm rod and the seat body, a plurality of insertion grooves distributed along the front-back direction are formed in the fixed seat, insertion joints matched with the insertion grooves are formed in the control arm rod, during adjustment, the control arm rod is upwards overturned around the rear end part, the tension spring is stressed, the insertion joints of the control arm rod are separated from the insertion grooves, and the seat part moves forwards and backwards; the control arm rod loses external force, the tension spring resets, and the plug connector is inserted into the insertion groove. Convenient regulation, the operation that resets moreover is simpler.

Specifically, a plurality of inserting grooves are arranged side by side and form two rows, the inserting joints are located on two opposite sides of the control arm rod, and the tension springs are two and correspondingly distributed on two opposite sides of the control arm rod.

According to a preferred embodiment of the present invention, the mounting seat includes a seat formed with an upward opening, a connecting rod fixed to the seat body, and a seat cover provided in the seat and having an abutment against the connecting rod, the seat plate being pivotally connected to an upper portion of a front end portion of the seat by a horizontally extending pivot. Thus, the seat board can close the seat bucket and is convenient for the butt joint of the seat bucket and the seat body.

Preferably, a sliding groove is formed in the front end of the seat bucket from top to bottom, the turnover mechanism comprises a sliding block arranged in the sliding groove in a sliding manner, a connecting module fixed to the rear portion of the seat board, a supporting rod with two ends rotatably connected between the sliding block and the connecting module, and a locking piece used for locking the sliding block and the seat bucket relatively, wherein the supporting rod is a telescopic rod and is an air cylinder, an oil cylinder or an electric cylinder. Thus, the tilting angle of the seat plate around the pivot can be realized by controlling the position of the sliding block, and meanwhile, the position of the sliding block is controlled by further changing the length of the support rod, so that the seat plate can present a required angle.

According to a further embodiment and preferred aspect of the utility model, an inner bracket is further provided in the bucket, and the turnover mechanism further comprises a top bracing member provided between the front and rear parts of the seat plate and mounted on the inner bracket. Further improving the support effect provided by the seat plate.

Preferably, the inner support frame comprises an inclined support, one end part of the inclined support is fixed at the front end of the seat bucket, and the other end part of the inclined support is supported on the seat sleeve; the supporting plate is used for positioning the inclined support on the bottom plate of the hopper, the top support component comprises a first component arranged on the inclined support and a second component arranged on the seat plate, and the first component and the second component are in universal rotary connection. In this case, the universal rotation adjustment is used to meet any angular change and always maintain an effective support.

In this example, the inclined strut is provided with a connecting bolt, the upper end part of the inclined strut is provided with a ball head, the corresponding part of the seat board is provided with a connecting head, and the connecting head is connected with the ball head part in a wrapping type rotating way.

According to another embodiment and a preferred aspect of the present invention, the number of the seat bars is two, and a bar sleeve is formed on an outer circumference of each of the inner sleeve bars, a ball is provided on the bar sleeve, an inner wall of the outer sleeve bar is engaged with the ball and moves up and down along a length direction of the inner sleeve bar, and the elevating mechanism includes a power elevating bar provided between the chassis and the fixing base, and a stopper module provided at a lower end of each of the inner sleeve bars and protruding outward from an outer circumference. Under the sliding and guiding of the ball bearings, the relative adjustment of the inner and outer loop bars is facilitated.

In addition, a notch is formed at the rear part of the seat plate, the lower leaning rod is connected in the sliding seat through a connecting shaft from the lower end part, the upper end part of the lower leaning rod penetrates out of the notch and is positioned above the cushion, the upper leaning rod comprises a first rod body, a second rod body and a locking part, the first rod body and the second rod body are movably arranged on the first rod body along the length direction of the first rod body, and the first rod body and the second rod body are locked relatively. This provides two benefits: 1. the inclination angle of the backrest can be adjusted; 2. the extension height adjustment of the backrest can be performed. That is, whether it is angular or high, its ultimate purpose is to meet the use needs of the physician at work or rest.

Preferably, the back pad is provided at an upper portion of the second rod. In this way, adjustment of the position of the backrest cushion is effected by adjustment of the second bar, thereby providing comfortable support of the appropriate position and angle of the backrest portion.

Due to the implementation of the technical scheme, compared with the prior art, the utility model has the following advantages:

the chair can not only adjust the chair back and forth and up and down, but also adjust the angle of the chair part and the chair backrest part, and particularly adjust the height of the chair backrest part, so that the chair seat can meet the optimal support required by different doctors during work or rest, and meanwhile, the chair has the advantages of simple structure, convenience in implementation and low cost.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic view of the construction of the physician's chair of the present invention;

FIG. 2 is a schematic view of a portion of the structure of FIG. 1;

FIG. 3 is a schematic front view of FIG. 2;

FIG. 4 is a schematic view of a portion of the structure of FIG. 2;

FIG. 5 is a schematic view of the seat of FIG. 1;

FIG. 6 is a schematic view of the seat of FIG. 5 with the back pad and seat cushion removed;

FIG. 7 is a top view of FIG. 6;

FIG. 8 is a left side schematic view of FIG. 7;

FIG. 9 is a schematic sectional view taken along line A-A in FIG. 7;

FIG. 10 is a partial schematic view of the seat of FIG. 5;

FIG. 11 is a left side schematic view of FIG. 10;

wherein: 1. a seat portion; 10. a base; 100. a fixed seat; x, inserting grooves; 100a, a slide rail; 101. a slide base; a. a seat body; b. a control arm lever; b1, a plug; c. a mounting seat; c1, bucket; c10, a chute; c11, an inner support; c110, an inclined strut; c111, a supporting plate; c2, connecting rod; c3, seat cover; h. a tension spring; 102. a seat plate; 11. a cushion; 12. a turnover mechanism; 120. a slider; 121. a connection module; 122. a stay bar; 123. a locking member; 124. a top bracing member; d1, first component; d2, second component;

2. a chair-leaning part; 20. a backrest; 200. a lower leaning rod; 201. an upper leaning rod; g1, a first rod; g2, a second rod body; 21. back cushion;

3. a seat post; 30. an inner loop bar; 31. an outer loop bar; 32. a rod sleeve; 33. a ball bearing;

13. a lifting mechanism; 130. a powered lifter; 131. a limiting module; 132. a hydraulic pump station;

p, a chassis.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

As shown in fig. 1, the seat of the present embodiment includes a seat portion 1 having a base 10 and a seat cushion 11, a bench portion 2 having a backrest 20 and a backrest cushion 21, and a seat bar 3.

Referring to fig. 2 to 4, the base 10 includes a fixing base 100, a sliding base 101 slidably disposed on the fixing base 100 along a front-rear direction of the fixing base 100, and a seat plate 102 disposed on the sliding base 101, and the seat cushion 11 is mounted on the seat plate 102.

The seat post 3 comprises an inner rod 30 and an outer rod 31, wherein the inner rod 30 is fixed on the chassis P of the doctor seat from the lower end, the outer rod 31 is arranged to move up and down along the length direction of the inner rod 30, and the upper end is fixed on the fixing seat 100.

Referring to fig. 5 to 9, the seat adjusting mechanism includes a tilting mechanism 12 disposed between the sliding base 101 and the seat plate 102 for driving the seat plate 102 to tilt about the horizontal direction, and a lifting mechanism 13 for driving the inner loop bar 30 and the outer loop bar 31 to extend or contract relatively.

In this example, the fixed base 100 is provided with a slide rail 100a extending in the front-rear direction, the slide base 101 includes a base body a slidably provided on the slide rail 100a, a lever b connected to the base body a and capable of locking with the fixed base 100, and a mounting base c provided on the base body a, and the seat plate 102 is mounted on the mounting base c.

Specifically, the control arm b extends forwards from the front end of the seat body a and is positioned below the seat part 1, the control arm b is rotatably arranged on the seat body a from the rear end, a tension spring h for keeping the control arm b and the seat body a relatively attached is arranged between the control arm b and the seat body a, a plurality of insertion grooves x distributed along the front-rear direction are formed on the fixed seat 100, insertion joints b1 matched with the insertion grooves x are formed on the control arm b, during adjustment, the control arm b turns upwards around the rear end, the tension spring h is stressed, the insertion joints b1 of the control arm b are separated from the insertion grooves x, and the seat part 1 moves forwards and backwards; when the external force of the control arm lever b is lost, the tension spring h resets, and the plug connector b1 is inserted into the plug-in groove x. Therefore, the seat can be positioned by adjusting the front and back positions of the seat in the movement and reset of the control arm rod, and the seat is very convenient.

The mounting seat c includes a seat c1 formed with an upward opening, a connecting rod c2 fixed to the seat body a, and a seat cover c3 provided in the seat c1 and having an abutment with the connecting rod c2, and the seat plate 102 is pivotally connected to an upper portion of a front end portion of the seat c1 by a horizontally extending pivot. Thus, the seat board can close the seat bucket and is convenient for the butt joint of the seat bucket and the seat body.

A slide groove c10 is formed at the front end of the seat bucket c1 from top to bottom, and the seat unit 1 further includes a turnover mechanism 12 provided between the slide base 101 and the seat plate 102 to turn the seat plate 102 in the horizontal direction.

Specifically, the turnover mechanism 12 includes a slide block 120 slidably disposed in the slide groove c10, a connection module 121 fixed to the rear portion of the seat plate 102, a stay 122 having both ends rotatably connected between the slide block 120 and the connection module 121, and a locking member 123 for locking the slide block 120 and the bucket c1 with respect to each other. Thus, the tilting angle of the seat plate around the pivot can be implemented by manipulating the position of the slider.

Specifically, the support rod 122 is a telescopic rod, and is an air cylinder, an oil cylinder or an electric cylinder. Therefore, the position of the sliding block can be controlled by further changing the length of the stay bar, so that the seat plate can present a required angle.

In this example, the brace 122 is a gas spring.

As shown in fig. 10 and 11, an inner bracket c11 is further provided in the bucket c1, and the turnover mechanism 12 further includes a top bracing member 124 provided between the front and rear parts of the seat plate 102 and mounted on the inner bracket c 11. Further improving the support effect provided by the seat plate.

The inner bracket c11 comprises an inclined strut c110 which is fixed at the front end of the bucket c1 at one end and supported on the seat cover c3 at the other end; and the top bracing component 124 comprises a first component d1 arranged on the inclined brace c110 and a second component d2 arranged on the seat plate 102, wherein the first component d1 and the second component d2 are in universal rotation connection. In this case, the universal rotation adjustment is used to meet any angular change and always maintain an effective support.

In this example, a connecting bolt is provided on the brace c110, a ball head is formed at the upper end, a connecting head is provided at the corresponding position of the seat plate 102, and the connecting head and the ball head are connected in a wrapping type rotation manner, that is, the first part d1 is a ball head piece; the second part d2 is a ball socket piece.

The backrest 20 includes a lower leaning rod 200 whose lower end portion is butted against the sliding base 101, and an upper leaning rod 201 which rotates with the lower leaning rod 200 and is movably adjusted along the length direction of the lower leaning rod 200, and the cushion 21 is mounted on the upper leaning rod 201.

A notch is formed in the rear portion of the seat plate 102, the lower leaning rod 200 is connected in the slide 101 through a connecting shaft from the lower end portion, and the upper end portion of the lower leaning rod 200 penetrates out of the notch and is located above the seat cushion 21.

The upper leaning rod 201 includes a first rod g1 rotating and locking with the upper portion of the lower leaning rod 200 around the horizontal direction, a second rod g2 movably arranged on the first rod g1 along the length direction of the first rod g1, and a locking portion g3 locking the first rod g1 and the second rod g2 relatively. This provides two benefits: 1. the inclination angle of the backrest can be adjusted; 2. the extension height adjustment of the backrest can be performed. That is, whether it is angular or high, its ultimate purpose is to meet the use needs of the physician at work or rest.

In this example, the back pad 21 is provided on the upper portion of the second rod g 2. In this way, the adjustment of the position of the backrest cushion 21 is performed by the adjustment of the second rod g2, thereby providing comfortable support of the backrest portion 2 at a proper position and angle.

Meanwhile, the number of the seat posts 3 is two, a post sleeve 32 is formed on the outer periphery of each inner sleeve rod 30, a ball 33 is arranged on the post sleeve 32, and the inner wall of the outer sleeve rod 31 is attached to the ball 33 and moves up and down along the length direction of the inner sleeve rod 30.

The lifting mechanism 13 includes a power lifting rod 130 disposed between the chassis P and the fixing base 100, and a limit module 131 disposed at a lower end of each inner rod 30 and protruding outward from an outer periphery. Under the sliding and guiding of the ball bearings, the relative adjustment of the inner and outer loop bars is facilitated.

In this example, the power lift rod 130 is a hydraulic cylinder and a hydraulic pump station 132 is provided on the chassis.

Specifically, the limiting module 131 is a right triangle, and is fixedly attached to the side of the inner loop bar 30 from one right-angled side, and the other right-angled side is disposed upward, and when the seat bar 3 is in the shortest state, the lower end of the outer loop bar 31 abuts against the right-angled side at the top.

In summary, the advantages of this embodiment are as follows:

1. the chair can not only realize the front-back and up-down adjustment of the chair, but also realize the angle adjustment of the chair part and the chair backrest part, and particularly the chair backrest part can also realize the height adjustment, so that the chair seat can meet the optimal support required by different doctors during work or rest;

2. the positions and angles of the cushion and the back cushion are convenient to adjust and implement, and meanwhile, the chair seat has stable angle support under the middle support and the tail support;

3. structural configuration is reasonable, can implement hiding and the protection of tilting mechanism, in case the control armed lever loses external force moreover, the extension spring resets, and the inserting groove is inserted to the bayonet joint, can implement the location of the front and back position control of seat, and is very convenient.

The present invention has been described in detail above, but the present invention is not limited to the above-described embodiments. All equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims (10)

1. A seat adjustment structure for a physician's seat, the seat comprising a seat portion having a base and a cushion, a backrest portion having a backrest and a back cushion, and a seat post, characterized in that: the base comprises a fixed seat, a sliding seat arranged on the fixed seat in a sliding manner along the front-back direction of the fixed seat, and a seat board arranged on the sliding seat, the seat cushion is arranged on the seat board, the backrest comprises a lower leaning rod butted with the sliding seat at the lower end part and an upper leaning rod movably adjusted along the length direction of the lower leaning rod, the backrest is arranged on the lower leaning rod or/and the upper leaning rod, the seat rod comprises an inner loop rod and an outer loop rod, the inner loop rod is fixed on a chassis of the doctor seat from the lower end part, the outer loop rod is arranged along the length direction of the inner loop rod in a vertical relative movement manner, the upper end part of the outer loop rod is fixed on the fixed seat, the seat adjusting structure comprises a turnover mechanism, a turnover mechanism and a seat board, wherein the turnover mechanism, the turnover mechanism and the seat board are driven to turn around the horizontal direction between the sliding seat board, And the lifting mechanism is used for driving the inner loop bar and the outer loop bar to relatively extend or contract.

2. The chair seat adjustment structure of a physician's chair as claimed in claim 1, wherein: the seat board is rotatably connected with the front end part of the sliding seat through a pivot, and the turnover mechanism is hidden between the seat board and the sliding seat through the seat board.

3. The chair seat adjustment structure of a physician's chair as claimed in claim 1, wherein: the sliding seat comprises a seat body arranged on the sliding rail in a sliding mode, an operating arm rod connected with the seat body and capable of being locked relative to the fixed seat, and a mounting seat arranged on the seat body, the seat plate is mounted on the mounting seat, the operating arm rod is separated from the fixed seat and unlocked under the action of external force and the external force, and the sliding seat slides along the length direction of the sliding rail; and when the external force applied to the control arm rod disappears, the control arm rod resets and is locked with the fixed seat.

4. The chair seat adjustment structure of a physician's chair according to claim 3, wherein: the seat body is provided with a seat part, the seat part is provided with a front end part and a rear end part, the front end part of the seat body is provided with a control arm rod, the control arm rod extends forwards from the front end part of the seat body and is positioned below the seat part, the control arm rod is rotatably arranged on the seat body from the rear end part, a tension spring for keeping the control arm rod and the seat body to be relatively attached is arranged between the control arm rod and the seat body, a plurality of inserting grooves distributed along the front-rear direction are formed on the fixed seat, inserting connectors matched with the inserting grooves are formed on the control arm rod, the control arm rod is upwards overturned around the rear end part during adjustment, the tension spring is stressed, the inserting connectors of the control arm rod are separated from the inserting grooves, and the seat part moves forwards and backwards; the control arm rod loses external force, the tension spring resets, and the plug connector is inserted into the insertion groove.

5. The chair seat adjustment structure of a physician's chair according to claim 4, wherein: the plurality of inserting grooves are arranged side by side and form two rows, the inserting joints are located on two opposite sides of the control arm rod, and the number of the tension springs is two, and the tension springs are correspondingly distributed on two opposite sides of the control arm rod.

6. The chair seat adjustment structure of a physician's chair according to claim 3, wherein: the mounting seat comprises a seat bucket with an upward opening, a connecting rod fixed on the seat body, and a seat cover arranged in the seat bucket and provided with a joint with the connecting rod, wherein the seat plate is rotatably connected to the upper part of the front end part of the seat bucket through a horizontally extending pivot.

7. The chair seat adjustment structure of a physician's chair as claimed in claim 6, wherein: the front end part of the seat bucket is provided with a sliding groove which is arranged from top to bottom, the turnover mechanism comprises a sliding block which is arranged in the sliding groove in a sliding mode, a connecting module which is fixed to the rear part of the seat plate, a support rod of which two end parts are connected between the sliding block and the connecting module in a rotating mode, and a locking piece which is used for locking the sliding block and the seat bucket relatively, wherein the support rod is a telescopic rod and is an air cylinder, an oil cylinder or an electric cylinder.

8. The chair seat adjustment structure of a physician's chair as claimed in claim 6, wherein: an inner support frame is also arranged in the seat bucket, and the inner support frame comprises an inclined support, one end part of the inclined support is fixed at the front end of the seat bucket, and the other end part of the inclined support is supported on the seat sleeve; the turnover mechanism further comprises a top bracing part which is arranged between the front part and the rear part of the seat plate and is installed on the inner bracing frame, the top bracing part comprises a first part arranged on the inclined bracing and a second part arranged on the seat plate, and the first part and the second part are in universal rotation connection.

9. The chair seat adjustment structure of a physician's chair as claimed in claim 1, wherein: the bedplate with the rear portion of cushion forms the breach, the back rod passes through the connecting axle from lower tip and connects down in the slide, the upper end of back rod certainly wear out in the breach and lie in the top of cushion down, go up the back rod include with back rod upper portion down rotates around the horizontal direction and the first body of rod of locking, along first body of rod length direction activity sets up second body of rod on the first body of rod and will the first body of rod with the relative locking's of second body of rod sticking portion, the cushion set up the upper portion of the second body of rod.

10. The chair seat adjustment structure of a physician's chair as claimed in claim 1, wherein: the seat pole has two, and every the periphery of interior loop bar is formed with the rod cover be equipped with the ball on the rod cover, the inner wall laminating ball of outer loop bar and along the length direction up-and-down motion of interior loop bar, elevating system is including setting up the chassis with power lifter between the fixing base and set up the tip and outside convex spacing module in the periphery under every interior loop bar.

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