CN206380985U - Lifting and adjusting structure of a standing chair - Google Patents

Abstract

The utility model discloses a lifting adjusting structure of a standing chair, which comprises a standing plate, supporting tubes arranged on the standing plate and a back cushion hinged at the top end of the supporting tubes, wherein the supporting tubes are divided into a first supporting tube, a second supporting tube and a third supporting tube which are sequentially sleeved from outside to inside; in addition, because the lifting adjusting structure of the standing armchair has a telescopic adjusting function, the standing armchair can be widely applied to the field of all products needing telescopic adjustment, such as lifting tables, lifting platforms, telescopic fishing rods, telescopic mechanical arms, telescopic folding umbrellas and the like.

Description

Lifting and adjusting structure of a standing chair

technical field

The utility model relates to a lifting adjustment device, in particular to a lifting adjustment structure of a standing chair.

Background technique

At present, there is a standing chair on the market, which is produced to solve the long-term standing or sitting work in people's daily life. For example, teachers stand for a long time during class, and it is impossible to sit on a chair to give lectures to students. In addition, for some white-collar workers or computer programmers who work in the office, they must sit in front of the computer for a long time to handle various affairs, and sitting for a long time is also bad for their health. The back cushion is composed of a support tube fixed on the footing plate, and the top of the back cushion is hinged with the support tube. One section is equipped with an adjusting bolt inserted into the adjusting hole, the support tube can be stretched up and down, when the support tube shrinks, the back cushion drops, so that the standing chair can be used as a stool, when the support tube extends upward, the back cushion rises and rotates to face the user , the user stands on the footing board, leans the hip or waist on the cushion, and shares the weight of the upper body on the legs when standing, so that the person will not feel tired when standing. The structure is simple, but the cushion needs to be moved when adjusting , it is more troublesome when adjusting the height multiple times.

Contents of the invention

In order to overcome the deficiencies of the prior art, the utility model provides a lifting adjustment structure of a standing chair with simple structure, rapid height adjustment and labor-saving.

The technical scheme that the utility model solves its technical problem adopts is:

A lifting adjustment structure of a standing chair, comprising a footing plate, a support tube mounted on the footing plate, and a back cushion hinged on the top of the support tube. support tube, the second support tube and the third support tube, the first support tube is fixedly installed on the footing plate, the cushion is installed on the top of the third support tube, and the control unit is installed in the support tube A first lifting mechanism for the second support tube to slide up and down and a second lift mechanism for controlling the third support tube to slide up and down.

A cylinder connection sleeve is fixedly installed in the second support tube, a sliding port for accommodating most of the third support tube is provided between the second support tube and the cylinder connection sleeve, and the first lifting mechanism and The second lifting mechanism is installed in the connecting sleeve of the cylinder.

The first lifting mechanism includes a first cylinder fixedly installed in the cylinder connecting sleeve, the tail end of the first cylinder is provided with a first fixed threaded hole, and the upper end of the cylinder connecting sleeve is provided with a threaded connection to the The first countersunk head screw in the first fixed threaded hole, the first cylinder is provided with a first piston rod extending downward and capable of reciprocating movement, the first piston rod is fixedly connected to the lower end of the first support tube, The first piston rod is connected with a first control mechanism.

The bottom of the first support tube is installed with a first piston rod fixing seat, and the bottom end of the first piston rod passes through the first piston rod fixing seat and is fixedly connected with the first piston rod fixing seat, so The first control mechanism includes a lever-type foot pedal installed on the first piston rod fixing seat, the middle part of the foot pedal is hinged with the first piston rod fixing seat, and one end of the foot pedal extends Out of the first support tube and above the footing plate, the other end extends into the first piston rod fixing seat and is in contact with the bottom end of the first piston rod. The first piston rod The pedal return shrapnel against the upper surface of the pedal is also installed in the fixed seat.

The second lifting mechanism includes a second cylinder fixedly installed in the cylinder connecting sleeve, the tail end of the second cylinder is provided with a second fixed threaded hole, and the lower end of the cylinder connecting sleeve is provided with a threaded connection to the Second countersunk screw for second fixing threaded hole. The second cylinder is provided with a second piston rod extending upwards and capable of reciprocating movement, the second piston rod is fixedly connected to the upper end of the third support tube, and the second piston rod is connected to a second control mechanism.

The upper end of the third support tube is equipped with a second piston rod fixing member, the top end of the second piston rod passes through the second piston rod fixing member and is fixedly connected with the second piston rod fixing member, the The second control mechanism includes a lever type wrench installed on the top of the third support tube, the top of the third support tube is equipped with a cushion mounting seat, the back cushion is hinged with the upper end of the cushion mounting seat, the spanner's The middle part is hinged with the middle part of the back cushion mounting seat, one end of the wrench protrudes outside the third support tube, and the other end extends into the back cushion mounting seat and is in contact with the top end of the second piston rod. A wrench return shrapnel against the lower surface of the wrench is installed inside the lower end of the cushion mounting seat.

A knob fixing seat is installed on the outer side wall of the upper end of the second support tube, and the knob fixing seat is threadedly connected with a knob stud, and the front end of the knob stud is fixedly connected with a button facing the side wall of the third support tube. The third support tube locking block, when the knob stud is tightened, the third support tube locking block abuts against the outer side wall of the third support tube.

A first support tube bushing is installed on the inner side wall of the upper end of the first support tube, the side wall of the first support tube is provided with a first positioning opening, and the first support tube bush is provided with a The first positioning boss of the first positioning port, the outer side wall of the second support tube is in contact with the inner side wall of the first support tube bushing; the inner side wall of the upper end of the second support tube is installed with the first Two support pipe bushings, the side wall of the second support pipe is provided with a second positioning opening, the second support pipe bushing is provided with a second positioning boss embedded in the second positioning opening, the third The outer sidewall of the support tube is in contact with the inner sidewall of the second support tube bushing.

The beneficial effects of the utility model are: the standing chair of the utility model is composed of a footboard, a support tube and a back cushion, and the support tube is divided into a first support tube, a second support tube and a third support tube from outside to inside, and is installed on the support The first lifting mechanism and the second lifting mechanism inside the tube respectively control the second support tube and the third support tube to slide up and down, and it is easy to adjust the height of the cushion. The structure is simple, the adjustment is quick and smooth, and it meets the requirements of people sitting or standing.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is the overall structure schematic diagram when the support pipe of the present utility model rises;

Fig. 2 is a schematic diagram of the overall structure of the support tube of the present invention when it shrinks;

Fig. 3 is a sectional view of the overall structure when the support pipe of the present invention is raised;

Fig. 4 is a cross-sectional view of the overall structure of the support tube of the present invention when it shrinks.

detailed description

Referring to Fig. 1 to Fig. 4, a lifting adjustment structure of a standing chair includes a footboard 1, a support tube 2 installed on the footboard 1 and a back cushion 3 hinged on the top of the support tube 2, the support The tube 2 is divided into a first support tube 4, a second support tube 5 and a third support tube 6 which are sequentially socketed from the outside to the inside. The first support tube 4 is fixedly installed on the footing board 1, and the back cushion 3 Installed on the top of the third support tube 6, the support tube 2 is equipped with a first lifting mechanism that controls the sliding of the second support tube 5 up and down and a second lifting mechanism that controls the sliding of the third support tube 6 up and down. Mechanism, it is easy to adjust the height of the cushion, the structure is simple, the adjustment is quick and smooth, when the support tube is raised, as shown in Figure 1 and Figure 3, it can meet the requirements of people standing and leaning, when the support tube shrinks, as shown in Figure 2 and Figure 3 As shown in 4, the requirement of people to sit down can be satisfied.

In this embodiment, a first support tube bushing 27 is installed on the inner side wall of the upper end of the first support tube 4, and the side wall of the first support tube 4 is provided with a first positioning opening. The support tube bushing 27 is provided with a first positioning boss 28 embedded in the first positioning opening, and the outer side wall of the second support tube 5 is in contact with the inner side wall of the first support tube bushing 27; A second support tube bushing 29 is installed on the inner side wall of the upper end of the second support tube 5, the side wall of the second support tube 5 is provided with a second positioning port, and the second support tube bush 29 is provided with an embedded The second positioning boss 30 of the second positioning port, the outer wall of the third support tube 6 is in contact with the inner wall of the second support tube bushing 29, and the first support tube bushing 27 and The second support tube bushings 29 are made of plastic material with low frictional force to ensure the smooth sliding of the second support tube and the third support tube, avoiding too much friction and reducing the service life of the support tube.

A cylinder connection sleeve 7 is fixedly installed in the second support tube 5, and a sliding port 8 for accommodating most of the third support tube 6 is arranged between the second support tube 5 and the cylinder connection sleeve 7, Both the first lifting mechanism and the second lifting mechanism are installed in the cylinder connection sleeve 7, wherein the first lifting mechanism and the second lifting mechanism can be electric or pneumatic, for example, the electric method is the method of using a motor plus a rack, The direction of the rack is consistent with the sliding direction of the second support tube and the third support tube. A gear meshed with the rack is installed on the motor shaft, and the gear drives the rack to move up and down, thereby driving the second support tube or the third support tube to slide up and down. ; In addition, the cylinder control mode can also be adopted, and two cylinders are arranged side by side. The two cylinders are fixedly installed on the bottom of the first support tube, the piston rod of one cylinder is connected with the second support tube, and the piston rod of the other cylinder It is connected with the third support tube, so that the up and down sliding of the second support tube and the third support tube can also be controlled.

In this embodiment, due to cost considerations, the cylinder control method is adopted, but the arrangement of the cylinders is different from the above. The first lifting mechanism includes a first cylinder fixedly installed in the cylinder connecting sleeve 7 9. The tail end of the first cylinder 9 is provided with a first fixed threaded hole 10, and the upper end of the cylinder connection sleeve 7 is provided with a first countersunk screw 11 threadedly connected to the first fixed threaded hole 10, the The first cylinder 7 is provided with a first piston rod 12 extending downward and reciprocating, the first piston rod 12 is fixedly connected with the lower end of the first support pipe 4, and the first piston rod 12 is connected with a first A control mechanism; the bottom of the first support tube 4 is equipped with a first piston rod holder 13, and the bottom end of the first piston rod 12 passes through the first piston rod holder 13 and is connected to the first piston rod holder 13. The piston rod holder 13 is fixedly connected, and the first control mechanism includes a lever type pedal 14 installed on the first piston rod holder 13, and the middle part of the pedal 14 is connected to the first piston rod. The fixing seat 13 is hinged, and one end of the pedal 14 stretches out of the first support tube 4 and is located above the footing plate 1, and the other end extends into the first piston rod fixing seat 13 and is connected to the first piston rod fixing seat 13. The bottom end of the first piston rod 12 is connected in contact, and the first piston rod fixing seat 13 is also installed with a pedal return spring 23 against the upper surface of the pedal 14. When it is necessary to control the second support tube When sliding up and down, the foot pedal is positioned at one end above the footboard, and the other end of the pedal presses the first piston rod. At this time, the gas in the first cylinder 9 is emptied, and the first piston rod can be freely expanded and contracted, thereby Drive the first cylinder to move up and down. When the foot leaves the end of the pedal and is positioned at the top of the footboard, the other end of the pedal is not pressing the first piston rod due to the elastic force of the pedal return shrapnel 23. At this time, the first cylinder 9 The interior is filled with gas, the first cylinder cannot move up and down, and the second support tube cannot slide up and down.

The second lifting mechanism includes a second cylinder 15 fixedly installed in the cylinder connecting sleeve 7, the tail end of the second cylinder 15 is provided with a second fixed threaded hole 16, and the lower end of the cylinder connecting sleeve 7 is provided with There is a second countersunk screw 17 threadedly connected to the second fixing threaded hole 16 . The second cylinder 15 is provided with a second piston rod 18 extending upwards and capable of reciprocating movement, the second piston rod 18 is fixedly connected to the upper end of the third support pipe 6, and the second piston rod 18 is connected with The second control mechanism; the upper end of the third support tube 6 is equipped with a second piston rod fixing part 19, and the top end of the second piston rod 18 passes through the second piston rod fixing part 19 and connects with the second piston rod fixing part 19. The piston rod fixing part 19 is fixedly connected, and the second control mechanism includes a lever wrench 20 installed on the top of the third support tube 6, and the top of the third support tube 6 is equipped with a cushion mounting seat 21, and the back cushion 3 is hinged to the upper end of the cushion mounting seat 21, the middle part of the wrench 20 is hinged to the middle part of the cushion mounting seat 21, one end of the wrench 20 protrudes outside the third support tube 6, and the other end extends into The cushion mounting seat 21 is in contact with the top end of the second piston rod 18, and the lower end of the cushion mounting seat 21 is installed with a wrench return spring 22 against the lower surface of the wrench 20. When it is necessary to control the second When the three support tubes slide up and down, it is the same as the principle of controlling the movement of the second support tube. The stirring wrench 20 stretches out one end of the third support tube 6, and the other end presses the second piston rod, and the second piston rod in the second cylinder 15 When the gas is emptied, the second piston rod can be freely retracted, thereby driving the third support tube to move up and down. When the wrench is released, the other end of the wrench no longer presses the second piston rod due to the elastic force of the wrench return shrapnel 22. At this time The second cylinder 9 is full of gas, the second piston rod cannot move up and down, and the third support tube cannot slide up and down.

Because the center of gravity of the third support tube is relatively high and easy to shake, so in order to better fix the third support tube 6, a knob holder 24 is installed on the outer side wall of the upper end of the second support tube 5, and the knob holder 24 is threaded. A knob stud 25 is connected, and the front end of the knob stud 25 is fixedly connected with a third support tube locking block 26 facing the side wall of the third support tube 6. When the knob stud 25 is tightened, The third support tube locking block 26 abuts against the outer wall of the third support tube 6 .

Since the lifting adjustment structure of the station chair has a telescopic adjustment function, it can be extended not only to the standing chair, but also to the lifting table, lifting table, telescopic fishing rod, telescopic mechanical arm, telescopic folding umbrella, etc. All product areas that require telescopic adjustment.

Finally, it should be noted that: the above is only a preferred embodiment of the utility model, and is not intended to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art , it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (8)

1. A lift adjustment structure for a standing chair, comprising a footing board (1), a support tube (2) mounted on the footing board (1), and a cushion (3) hinged at the top of the support tube (2) ), characterized in that the support tube (2) is divided into a first support tube (4), a second support tube (5) and a third support tube (6), which are sequentially socketed from outside to inside, and the first support tube The tube (4) is fixedly installed on the footing plate (1), the cushion (3) is installed on the top of the third support tube (6), and the control tube (2) is installed inside the support tube (2). A first elevating mechanism for the two support tubes (5) to slide up and down and a second elevating mechanism for controlling the third support tube (6) to slide up and down. 2. The lifting adjustment structure of the standing chair according to claim 1, characterized in that a cylinder connection sleeve (7) is fixedly installed in the second support tube (5), and the second support tube (5) and A sliding port (8) for accommodating most of the third support pipe (6) is provided between the cylinder connecting sleeves (7), and both the first lifting mechanism and the second lifting mechanism are installed on the connection of the cylinder. set (7). 3. The lifting adjustment structure of the standing chair according to claim 2, characterized in that the first lifting mechanism includes a first cylinder (9) fixedly installed in the cylinder connecting sleeve (7), and the first cylinder The tail end of a cylinder (9) is provided with a first fixed threaded hole (10), and the upper end of the cylinder connecting sleeve (7) is provided with a first countersunk screw ( 11), the first cylinder (9) is provided with a first piston rod (12) extending downward and capable of reciprocating movement, the first piston rod (12) is connected to the lower end of the first support tube (4) Fixedly connected, the first piston rod (12) is connected with a first control mechanism. 4. The lifting adjustment structure of the standing chair according to claim 3, characterized in that a first piston rod fixing seat (13) is installed on the bottom of the first support tube (4), and the first piston rod ( 12) The bottom end passes through the first piston rod fixing seat (13) and is fixedly connected with the first piston rod fixing seat (13). The first control mechanism includes The lever type pedal (14) on the seat (13), the middle part of the pedal (14) is hinged with the first piston rod fixing seat (13), and one end of the pedal (14) extends Out of the first support tube (4) and above the footing plate (1), the other end extends into the first piston rod fixing seat (13) and connects with the first piston rod (12) The bottom end of the first piston rod fixing seat (13) is also installed in the first piston rod fixing seat (13) with a pedal return shrapnel (23) against the upper surface of the pedal (14). 5. The lifting adjustment structure of the standing chair according to claim 2, characterized in that the second lifting mechanism includes a second cylinder (15) fixedly installed in the cylinder connecting sleeve (7), and the first cylinder The tail end of the second cylinder (15) is provided with a second fixed threaded hole (16), and the lower end of the cylinder connection sleeve (7) is provided with a second countersunk screw ( 17); the second cylinder (15) is provided with a second piston rod (18) extending upward and reciprocating, and the second piston rod (18) is fixed to the upper end of the third support tube (6) connected, the second piston rod (18) is connected with a second control mechanism. 6. The lifting adjustment structure of the standing chair according to claim 5, characterized in that a second piston rod fixing member (19) is installed on the upper end of the third support tube (6), and the second piston rod ( The top end of 18) passes through the second piston rod fixing part (19) and is fixedly connected with the second piston rod fixing part (19), and the second control mechanism includes a ) lever wrench (20) at the top, the top of the third support tube (6) is installed with a back cushion mounting seat (21), and the back cushion (3) is hinged with the upper end of the cushion mounting seat (21), so The middle part of the wrench (20) is hinged with the middle part of the cushion mounting seat (21), one end of the wrench (20) extends out of the third support tube (6), and the other end extends into the cushion mounting seat (21) and is in contact with the top end of the second piston rod (18), and the lower end of the cushion mounting seat (21) is installed with a wrench return shrapnel (22) against the lower surface of the wrench (20). . 7. The lifting adjustment structure of the standing chair according to claim 1, characterized in that a knob fixing seat (24) is installed on the outer side wall of the upper end of the second support tube (5), and the knob fixing seat (24 ) is threadedly connected with a knob stud (25), and the front end of the knob stud (25) is fixedly connected with a third support tube locking block (26) facing the side wall of the third support tube (6). When the knob stud (25) is tightened, the third support tube locking block (26) abuts against the outer side wall of the third support tube (6). 8. The lifting adjustment structure of the standing chair according to claim 1, characterized in that a first support tube bushing (27) is installed on the inner wall of the upper end of the first support tube (4), and the first support tube bushing (27) is installed on the inner side wall of the upper end of the first support tube (4). The side wall of a support tube (4) is provided with a first positioning opening, the first support tube bushing (27) is provided with a first positioning boss (28) embedded in the first positioning opening, and the second The outer side wall of the support tube (5) is in contact with the inner side wall of the first support tube bushing (27); the second support tube bushing ( 29), the side wall of the second support tube (5) is provided with a second positioning opening, and the second support tube bushing (29) is provided with a second positioning boss (30) embedded in the second positioning opening ), the outer sidewall of the third support tube (6) is in contact with the inner sidewall of the second support tube bushing (29).