CN2413570Y

CN2413570Y - Seat with hydraulic height-adjusting structure

Info

Publication number: CN2413570Y
Application number: CN 00201403
Authority: CN
Inventors: 叶清秀
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-02-01
Filing date: 2000-02-01
Publication date: 2001-01-10
Anticipated expiration: 2010-02-01

Abstract

The utility model provides a seat with a hydraulic height-adjusting structure, which comprises a seat cushion, a pedestal, a casing, an oil hydraulic cylinder, an elastic element and a control valve. The utility model is characterized in that the increase of oil mass of the first oil storage chamber is linked with the oil hydraulic cylinder and the seat cushion to make an upper shift, and the increase of the oil mass of the second oil storage chamber is linked with the oil hydraulic cylinder and the seat cushion to make a lower decline, both of which are about whether the first oil storage chamber and the second oil storage chamber are connected with each other through being adjusted by the control valve. The utility model has the advantages of longer adjustable distance, high stability and easy control, and favorable hermetic performance of borrowing oil materials is suitable for reusing for a long time. The utility model also has the advantage that users can repair the seat automatically in order to reduce wastes.

Description

Seat with hydraulic type height regulating structure

The utility model relates to a kind of seat, refers to a kind of seat with hydraulic type height regulating structure especially.

See also shown in Figure 7ly, conventional seat includes a cushion 9, and cushion 9 bolts are fixed in the solid frame 911 of bolt on an adjustment unit 91 tops, and adjustment unit 9 bottoms are provided with a base 90.

As shown in Figure 8, its adjustment unit 91 has pipe 93 in an outer tube 92 and, filling gases at high pressure in it, and be provided with a piston rod 94 in the interior pipe 93, outer tube 92, the openend of interior pipe 93, the top of piston rod 94, the bottom all is provided with leak-stopping spare 95, and adjustment unit 91 tops vertically are provided with a control valve 98, to be pushed into opening on the control valve 98, its high pressure gas is known from experience this piston rod 94 of pushing tow and is risen, the height of cushion 9 is risen, open if push open on the control valve 98, and apply downward loading such as user's weight on the cushion 9, the gas in it is pushed in this loading meeting, makes piston rod 94, the height of cushion 9 descends.

Yet this kind utilizes the office seating of gases at high pressure adjusting device to have following shortcoming:

1. general gas has bigger compression ratio, wayward and be subjected to Temperature Influence easily and pressure takes place change, therefore use the high-pressure pump adjusting device to cause that because of temperature difference or the not agnate body weight that is sold to country variant the difference of compression makes the height of cushion 9 inequality, user as different weight may make the extreme higher position of cushion 9 variant, so poor stability is wayward.

2. height adjustment range is too little, can't satisfy the demands fully to different builds or desktop height different size.

3. this outer tube 92 needs to fill the gas of high pressure so that enough strength to be provided, though under behaviour in service not, gases at high pressure are bestowed these leak-stopping spares 95 great strength equally, cause leak-stopping spare 95 elastic fatigues and exert pressure for a long time, so the leakage-proof effect of leak-stopping spare 95 has a greatly reduced quality reduction of service life, so after using a period of time, gases at high pressure may leak ease because of small gap, make seat lose the effect of Height Adjustment, only be used in extreme lower position, cause user's inconvenience.

4. filling high pressure gas needs exclusive equipment and technology, and the user is difficult to repair voluntarily, and seat causes waste in case damage promptly can not be used.

5. cushion 9 height are many is the benchmark of design with ordinary person's knee to the height of foot, and in the leak-stopping spare 95 that must be provided with in its adjustment unit 91 can account for,

outer tube

93,92, the height of piston rod 94, therefore adjustable altitude range is little, and the compression ratio of air is big, be not suitable for the action of longer stroke, have to be with the solid frame 911 of this bolt, the height of base 90 is designed to higher, this control valve 98 vertically is set to mend the deficiency of adjustment unit 91, so it was highly still high when seat was adjusted to extreme lower position, can occupy sizable volume when making international sale dress cabinet, and the volume that cushion 9 separately must be occupied with minimizing, but this measure can make the assembling of seat be transferred on one's body the external distributors or user, and causes inconvenience and cost of transportation still high.

Main purpose of the present utility model is, provide a kind of seat for solving the above problems with hydraulic type height regulating structure, whether be communicated with first and second reservoir by the control valve adjustment, and the oil mass that makes first reservoir increases and to move on this oil hydraulic cylinder of interlock and the cushion, the oil mass of second reservoir increases this oil hydraulic cylinder of interlock and cushion is fallen, not only adjustable stroke is long, stability is high, be easy to control, and it borrows oil plant good sealing property, rust-preventing characteristic to be suitable for heavily covering for a long time use.

Another purpose of the present utility model is, provides that a kind of not need other disassembly and assembly be that possessive volume is little of to reduce the seat with hydraulic type height regulating structure of cost of transportation.

A purpose more of the present utility model is, the seat with hydraulic type height regulating structure that provides a kind of user to repair voluntarily.

The purpose of this utility model is realized by following technical scheme.

A kind of seat with hydraulic type height regulating structure comprises: cushion, base, and cushion is sat thereon for the user; Base has a body, and this body predetermined height is outward extended with a plurality of legs, and these leg bottoms are respectively equipped with an assembly pulley; It is characterized in that also comprise sleeve pipe, oil hydraulic cylinder, flexible member, the control valve of hollow, the sleeve pipe of described hollow is located in the body of base, and is extended upward by the bottom of this base; Described oil hydraulic cylinder has pipe in an outer tube and, and it is sheathed on the inside and outside side of this sleeve pipe respectively, and makes this oil hydraulic cylinder can be in the body slippage of this sleeve pipe and base, and this oil hydraulic cylinder and sleeve pipe junction are provided with more than one leak-stopping spare; Form one first reservoir between this outer tube and interior pipe, and the hollow bulb of pipe is provided with a piston in being somebody's turn to do, this piston can be in the hollow bulb slippage of interior pipe, and pipe forms one second reservoir in this in the top side of piston and make, and is filled with oil plant in this first and second reservoir; Described flexible member is located at the hollow bulb of pipe in this, the piston of this this oil hydraulic cylinder of flexible member pushing tow; Described control valve is located between this cushion and this oil hydraulic cylinder, this control valve has a valve chamber, this valve chamber is communicated with first and second reservoir of this oil hydraulic cylinder respectively with an oilhole, be horizontally arranged with a valve plug in this valve chamber, this valve plug can adjust whether be communicated with this first and second reservoir, and the oil mass of this first reservoir increases on this oil hydraulic cylinder of interlock and the cushion moves, and the oil mass of this second reservoir increases this oil hydraulic cylinder of interlock and cushion descends.

The utility model stability is high, be easy to control, and it borrows oil plant good sealing property, rust-preventing characteristic to be suitable for heavily covering for a long time use.

The purpose of this utility model can also further realize by following technical measures.

Aforesaid seat with hydraulic type height regulating structure, this cushion is pivoted with a chair back with an articulated part, makes this chair back bent and general parallel with cushion.

Aforesaid seat with hydraulic type height regulating structure, this flexible member are a compression spring, and the one end withstands the piston of this oil hydraulic cylinder, and the other end withstands a fixed part of being located at pipe bottom in this.

Aforesaid seat with hydraulic type height regulating structure, the valve plug of this control valve is with a spring push, and this valve plug has a large-diameter portion and a minor diameter part, and this large-diameter portion can prop up the oilhole of this first reservoir, and this minor diameter part can make the oilhole of this first and second reservoir be communicated with.

For further understanding technology contents of the present utility model, characteristics and effect, exemplify following preferred embodiment now, and conjunction with figs. is described in detail as follows:

Fig. 1 is a floor map of the present utility model.

Fig. 2 is the schematic diagram of closing of the utility model control valve.

Fig. 3 is the unlatching schematic diagram of the utility model control valve.

Fig. 4 is the schematic diagram that the utility model is adjusted into the higher position.

Fig. 5 is the schematic diagram that the utility model is adjusted into lower position.

Fig. 6 is the schematic diagram that the utility model is adjusted into extreme lower position.

Fig. 7 is a floor map of commonly using seat.

Fig. 8 is an adjustment structural representation of commonly using seat.

See also Fig. 1 to 6 figure, the utility model provides a kind of seat with hydraulic type height regulating structure, and this seat comprises:

One cushion 1, it is available for users to sit thereon, and this cushion 1 is pivoted with a chair back 12 with an articulated part 11, makes this chair back 12 bent and parallel with this cushion 1, the space of taking in saving.

One base 2, it has a body 21, and the predetermined height of this body 21 is outward extended with a plurality of leg 22, and these leg 22 bottoms are respectively equipped with an assembly pulley 23.

The sleeve pipe 3 of one hollow, as shown in Figure 4, it is located in the body 21 of this base 2, and a lid 24 that is provided with by these base 2 bottoms extends upward, and fastens lid 24 and sleeve pipe 3 is fixing with a clasp 25.

One oil hydraulic cylinder 4, it has pipe 42 in an outer tube 41 and, it is sheathed on the inside and outside side of this sleeve pipe 3 respectively, and make this oil hydraulic cylinder 4 can slippage between the top of the body 21 of this sleeve pipe 3 and base 2, bottom, this outer tube 41 is provided with a flange 411, and when this oil hydraulic cylinder 4 slid onto the top of this body 21, this flange 411 can be stopped by another clasp 26 that these body 21 tops are provided with and unlikelyly deviate from, in addition, this oil hydraulic cylinder 4 is respectively equipped with a leak-stopping spare 43 with sleeve pipe 3 junctions.

42 of above-mentioned outer tube 41 and interior pipes form one first reservoir 44, and the hollow bulb 421 of pipe 42 is provided with a piston 45 in being somebody's turn to do, this piston 45 can be managed 42 hollow bulb 421 slippages in this, and make in this pipe 42 form one second reservoir 46 in the top side of piston 45, and be filled with oil plant in this first and

second reservoir

44,46.

One flexible member 5 is located at the hollow bulb 421 of pipe 42 in this, and the piston 45 of these flexible member 5 one these oil hydraulic cylinders 4 of end pushing tow, and other end top heap is located at a fixed part 422 of pipe 42 bottoms in this, and in the present embodiment, this flexible member 5 is a compression spring.

One control valve 6, it is located at 4 of this cushion 1 and this oil hydraulic cylinders, as shown in Figure 2, this control valve 6 has a valve chamber 61, this valve chamber 61 is communicated with first and

second reservoir

44,46 of this oil hydraulic cylinder 4 respectively with an oilhole 62, and be horizontally arranged with a valve plug 63 in this valve chamber 61, this valve plug 63 has a large-diameter portion 64 and a minor diameter part 65, and this valve plug 63 is with a spring 66 pushing tows.In the present embodiment, the large-diameter portion 64 of this valve plug 63 can prop up the oilhole 62 of this first reservoir 44, if with this valve plug 63 to pusher, then the minor diameter part 64 of this valve plug 63 is communicated with the oilhole 62 of this first and

second reservoir

44,46.

As Fig. 2,3, shown in 4, with these control valve 6 pushers to opening, then first, two

reservoirs

44,46 are communicated with, and the strength that makes these flexible member 5 pushing tow oil hydraulic cylinders 4 pistons 45 can make the oil of piston 45 extruding second reservoir 46 flow to first reservoir 44, oil mass with first reservoir 44 increases, it is this oil hydraulic cylinder 4 of interlock also, move on the cushion 1, close or rise to the stroke summit until this control valve 6, otherwise, if desire to make cushion 1 to move down, open this control valve 6 equally, as shown in Figure 5, and apply downward loading such as user's weight at cushion 1, this loading will force the oil of this first reservoir 44 to flow to second reservoir 46, and with the oil mass minimizing of first reservoir 44, it is this oil hydraulic cylinder 4 of interlock also, cushion 1 descends, point at the bottom of this control valve 6 is closed or dropped to stroke, as shown in Figure 6.

The utility model is adjusted the height of cushion 1 by the oil mass of first and

second reservoir

44,46, and oil plant not only has lubricated, antirust advantage, the compression ratio of oil plant is minimum, and it more is not vulnerable to the influence of ambient temperature and changes, can reduce and be sold to the difference that country variant causes, and reduce the difference that the different weight user uses, so make the utility model stability high, be easy to control.In addition, the sealing of oil plant is good, and its pressure-bearing can reach every square centimeter more than 210 kilograms, it is not fragile heavily to cover use for a long time yet, promptly after long-time the use, if the leak-stopping spare that rubber is made 43 is aging, the user also can change leak-stopping spare 43 voluntarily, insert the oil plant reparation, it is clasp 25 with this

base

2,26 pull down, extract this oil hydraulic cylinder 4 out by the top side, the bottom side is extracted this sleeve pipe 3 out and is changed, and then again with its fit, the fixed part 422 that is screwed togather by this oil hydraulic cylinder 4 takes out flexible member 5, piston 45 is inserted to reinstall behind the oil plant and is got final product, with the function of guaranteeing that height of seat is adjusted, reduce the waste of changing whole seat because of local damage.

With regard to adjustment stroke of the present utility model, this sleeve pipe 3, oil hydraulic cylinder 4 need not be provided with the leak-stopping spare 43 of volume, and can reduce the height of the stroke that accounts for, therefore whole stroke is far above commonly using co-altitude pneumatics stroke, adjustable altitude range is big, therefore the height of this base 2 can be designed to lower, can make cushion 1 highly reach the height of human knee equally to foot, and when seat is adjusted to extreme lower position, the height of seat integral body also can reduce, and do not need other disassembly and assembly is that possessive volume is little, reduce the volume that international sale dress cabinet occupies and save cost of transportation, as shown in Figure 6, the utility model need not taken apart and transport, and the assembling of seat can not be transferred on one's body the external distributors or user yet.

In sum, whether the utility model is communicated with first and

second reservoir

44,46 by control valve 6 adjustment, and the oil mass that makes first reservoir 44 increases and to move on this oil hydraulic cylinder 4 of interlock and the cushion 1, the oil mass of second reservoir 46 increases this oil hydraulic cylinder 4 of interlock and cushion 1 descends, not only adjustable stroke is long, stability is high, be easy to control, and it borrows the oil plant good sealing property to be suitable for heavily covering for a long time use.

Claims

1. seat with hydraulic type height regulating structure comprises: cushion, base,

Cushion is sat thereon for the user;

Base has a body, and this body predetermined height is outward extended with a plurality of legs, and these leg bottoms are respectively equipped with an assembly pulley;

It is characterized in that, also comprise sleeve pipe, oil hydraulic cylinder, flexible member, the control valve of hollow,

The sleeve pipe of described hollow is located in the body of base, and is extended upward by the bottom of this base;

Described oil hydraulic cylinder has pipe in an outer tube and, and it is sheathed on the inside and outside side of this sleeve pipe respectively, and makes this oil hydraulic cylinder can be in the body slippage of this sleeve pipe and base, and this oil hydraulic cylinder and sleeve pipe junction are provided with more than one leak-stopping spare;

Form one first reservoir between this outer tube and interior pipe, and the hollow bulb of pipe is provided with a piston in being somebody's turn to do, this piston can be in the hollow bulb slippage of interior pipe, and pipe forms one second reservoir in this in the top side of piston and make, and is filled with oil plant in this first and second reservoir;

Described flexible member is located at the hollow bulb of pipe in this, the piston of this this oil hydraulic cylinder of flexible member pushing tow;

Described control valve is located between this cushion and this oil hydraulic cylinder, this control valve has a valve chamber, this valve chamber is communicated with first and second reservoir of this oil hydraulic cylinder respectively with an oilhole, be horizontally arranged with a valve plug in this valve chamber, this valve plug can adjust whether be communicated with this first and second reservoir, and the oil mass of this first reservoir increases on this oil hydraulic cylinder of interlock and the cushion moves, and the oil mass of this second reservoir increases this oil hydraulic cylinder of interlock and cushion descends.

2. the seat with hydraulic type height regulating structure according to claim 1 is characterized in that described cushion is pivoted with a chair back with an articulated part, makes this chair back bent and general parallel with cushion.

3. the seat with hydraulic type height regulating structure according to claim 1 is characterized in that, described flexible member is a compression spring, and the one end withstands the piston of this oil hydraulic cylinder, and the other end withstands a fixed part of being located at pipe bottom in this.

4. the seat with hydraulic type height regulating structure according to claim 1, it is characterized in that, the valve plug of described control valve is with a spring push, and this valve plug has a large-diameter portion and a minor diameter part, this large-diameter portion can prop up the oilhole of this first reservoir, and this minor diameter part can make the oilhole of this first and second reservoir be communicated with.