CN208807899U - Surge the jacking system of chair lift - Google Patents

Abstract

The utility model provides a kind of jacking system of chair lift that surges, it include: hydraulic cylinder, valve and apparatus for controlling of lifting, hydraulic cylinder includes piston, piston rod, preset spring and sealing cover, piston is arranged in hydraulic cylinder, hydraulic cylinder is separated into upper cavity and lower chamber, sealing cover is fastened on the bottom end of hydraulic cylinder, the top of hydraulic cylinder is connect with seat cushions, preset spring is arranged in upper cavity, the top of preset spring is abutted with the inner wall of hydraulic cylinder, the bottom end of preset spring is abutted with piston, the top of piston rod is connect with piston, the bottom end of piston rod is stretched out sealing cover and is connect with seat leg；The jacking system of chair lift of surging further includes valve and apparatus for controlling of lifting.The utility model have the characteristics that it is small in size, light-weight, convenient for moving, moreover it is possible to guarantee the safety of lifting seat.

Description

Surge the jacking system of chair lift

Technical field

The utility model belongs to chair lift technical field, especially relates to a kind of jacking system of chair lift that surges.

Background technique

Currently, lightweight lifting seat is widely used in the fields such as house, office because its is simple and practical in structure, operation is convenient It closes.Currently popular portable lifting seat uses pneumatic principle, fills inert gas in closed elevating mechanism, main to use Nitrogen as filled media, and be higher than atmospheric pressure environment under fill, using pressure official post mechanism go up and down, but recently more by The problems such as unqualified, pneumatic cylinder material is undesirable in filling gas ingredient, leads to the lethal thing of causing injury of pneumatic lifting armchair explosion Therefore report is constantly, the safety of pneumatic lifting armchair, reliability cause more and more to pay close attention to.

Currently popular hydraulic lifting seat is mainly used in occasions such as cosmetologys, using nontoxic liquid as Jie Matter the problems such as that there are volumes is big, heavy, is generally taken fixed point to put, will not be moved easily although highly-safe.

Utility model content

In view of the above problems, the purpose of the utility model is to provide a kind of jacking systems of chair lift that surges, to solve to open Dynamic lifting seat has that security risk, hydraulic lifting seat volume be big, heavy.

The utility model provides a kind of jacking system of chair lift that surges, comprising: hydraulic cylinder, hydraulic cylinder include living Plug, piston rod, preset spring and sealing cover, piston are arranged in hydraulic cylinder, and hydraulic cylinder is separated into upper cavity and cavity of resorption Body, sealing cover are fastened on the bottom end of hydraulic cylinder, and the top of hydraulic cylinder is connect with seat cushions, and preset spring is arranged in upper cavity Interior, the top of preset spring is abutted with the inner wall of hydraulic cylinder, and the bottom end of preset spring is abutted with piston, the top of piston rod with Piston connection, the bottom end of piston rod are stretched out sealing cover and are connect with seat leg；The jacking system of chair lift of surging further includes valve And apparatus for controlling of lifting, wherein valve include valve body, flap, valve rod, valve base, valve top cover, flap reset spring and valve by Button, valve top cover are fastened on the top of valve body, and valve base is fastened on the bottom end of valve body, and flap is arranged in valve body, valve body is separated At left chamber body and right chamber body, one end of valve rod is connect with flap, and the other end stretches out valve top cover and connect with valve button, and valve rod is convex Platform structure offers a circle limiting slot in the thicker part of valve rod, and one end of flap reset spring is abutted with valve base, the other end Abutted with flap, on the inner wall of hydraulic cylinder with offered on the inner wall of valve body be connected to left chamber body and upper cavity first oil Hole offers oil duct on the side wall of hydraulic cylinder and is connected to the second oilhole of oil duct and lower chamber, on the inner wall of valve body also Offer the third oilhole of connection oil duct and right chamber body；Apparatus for controlling of lifting include lockable mechanism, lockable mechanism reset spring and Position-limit mechanism shell offers sliding slot from root edge on position-limit mechanism shell upwards, and the root edge of position-limit mechanism shell has tiltedly Tooth；Lockable mechanism includes turntable, mandril and gag lever post, and lockable mechanism reset spring is set on gag lever post, and lockable mechanism is multiple In position-limit mechanism shell, the top of gag lever post is fixedly connected position spring retainer with the bottom end of turntable, upward at the middle part of turntable Push rod is protruded, mandril is set on push rod, projects upwards the boss there are two different in width, two boss at the edge of turntable Upper limb be respectively provided with helical teeth, wider boss is limited by the helical teeth of position-limit mechanism shell, and thinner boss passes through limit The helical teeth of position mechanism shell slides into sliding slot, and, thinner boss is detached from sliding slot by the lower pressure of mandril.

Using the jacking system of the above-mentioned chair lift provided by the utility model that surges, following technical effect can be obtained:

(1) Pneumatic elevation mode is replaced using hydraulic lifting mode, ensure that the safety of lifting seat；

(2) lifting seat has the characteristics that small in size, light-weight, convenient for moving.

Detailed description of the invention

By reference to the explanation below in conjunction with attached drawing, and with the utility model is more fully understood, this is practical new The other purposes and result of type will be more clearly understood and understood.In the accompanying drawings:

Fig. 1 is the jacking system and the dress of seat cushions, seat leg according to the chair lift that surges of the utility model embodiment Figure；

Fig. 2 is the sectional structure chart according to the jacking system of the chair lift that surges of the utility model embodiment；

Fig. 3 is the structure chart according to the apparatus for controlling of lifting of the utility model embodiment.

Appended drawing reference therein include: 1~hydraulic cylinder, 10~third oilhole, 11~piston, 12~piston rod, 13~ Preset spring, 14~sealing cover, 15 first oilholes, 16~the second oilholes, 17~oil duct, 18~upper cavity, 19~lower chamber, 2 ~valve, 21~valve body, 22~flap, 23~valve rod, 231~limiting slot, 24~valve base, 25~valve top cover, 26~flap Reset spring, 27~valve button, 28~left chamber body, 29~right chamber body, 3~apparatus for controlling of lifting, 311~turntable, 3111~ Push rod, 3112~boss, 312~mandril, 313~gag lever post, 32~lockable mechanism reset spring, 33~position-limit mechanism shell, 331~sliding slot, 332~helical teeth, 4~seat cushions, 5~seat leg.

Specific embodiment

Specific embodiment of the utility model is described in detail below with reference to attached drawing.

Fig. 1 shows surge chair lift and the seat cushions, seat leg of the jacking system according to the utility model embodiment Assembly relation.

As shown in Figure 1, the jacking system of the chair lift provided by the embodiment of the utility model that surges includes hydraulic cylinder 1, valve Door 2 and apparatus for controlling of lifting 3, the top of hydraulic cylinder 1 are connect with seat cushions 4, and the bottom end of hydraulic cylinder 1 and seat leg 5 connect It connects, whether apparatus for controlling of lifting 3 is opened for control valve, and valve 2 is used to control to adjust the whole height of hydraulic cylinder 1.

Fig. 2 shows the sectional structures according to the jacking system of the chair lift that surges of the utility model embodiment.

The specific structure of hydraulic cylinder 1 and valve 2 is as shown in Fig. 2, separately below to hydraulic cylinder, valve and elevating control The specific structure of these three parts of device is illustrated.

One, hydraulic cylinder

Hydraulic cylinder 1 includes: piston 11, piston rod 12, preset spring 13 and sealing cover 14, and piston 11 is arranged in hydraulic cylinder In body 1, hydraulic cylinder 1 is separated into upper cavity 18 and lower chamber 19, sealing cover 14 is fastened on the bottom end of hydraulic cylinder 1, hydraulic The top of cylinder body 1 is connect with seat cushions, and preset spring 13 is arranged in upper cavity 18, the top of preset spring 13 and hydraulic cylinder 1 inner wall abuts against, and bottom end and the piston 11 of preset spring 13 abut against, and the top of piston rod 12 is connect with piston 11, piston The bottom end of bar 12 is stretched out sealing cover 14 and is connect with seat leg.

Two, valve

Valve 2 includes valve body 21, flap 22, valve rod 23, valve base 24, valve top cover 25, flap reset spring 26 and valve Button 27, valve top cover 25 are fastened on the top of valve body 21, and valve base 24 is fastened on the bottom end of valve body 21, and flap 22 is arranged in valve body In 21, valve body 21 is separated into left chamber body and right chamber body, one end of valve rod 23 is connect with flap 22, and the other end of valve rod 23 stretches out Valve top cover 24 is connect with valve button 27, and valve rod 23 is boss structure, and projection section can prevent valve rod 23 to be detached from valve body 21, The thicker part of valve rod 23 offers a circle limiting slot 231, and one end and the valve base 24 of flap reset spring 26 abut against, flap The other end of reset spring 26 is abutted against with flap 22, the company of offering on the inner wall of hydraulic cylinder 1 and on the inner wall of valve body 21 First oilhole 15 of logical left chamber body 28 and upper cavity 18, offers the second oilhole 16 and oil duct 17 on the side wall of hydraulic cylinder 1, Oil duct 17 is connected to by the second oilhole 16 with lower chamber 19, and third oilhole 10, third oilhole are also provided on the inner wall of valve body 21 10 are connected to oil duct 17 with right chamber body 29.

Apparatus for controlling of lifting 3 is mounted in an interference fit on valve 2.

Fig. 3 shows the overall structure of the apparatus for controlling of lifting according to the utility model embodiment.

As shown in figure 3, apparatus for controlling of lifting includes lockable mechanism, lockable mechanism reset spring 32 and position-limit mechanism shell 33, offer sliding slot 331 upwards from root edge on position-limit mechanism shell 33, and the root edge of position-limit mechanism shell 33 has helical teeth 332；Lockable mechanism includes turntable 311, mandril 312 and gag lever post 313, and lockable mechanism reset spring 32 is set in gag lever post 313 On, and lockable mechanism reset spring 32 limits in position-limit mechanism shell 33, the top of gag lever post 313 and the bottom end of turntable 311 It is fixedly connected, has projected upwards push rod 3111 at the middle part of turntable 311, mandril 312 is set on push rod 3111, in turntable 311 Edge project upwards the boss 3112 there are two different in width, the upper limb of two boss 3112 is respectively provided with helical teeth, wider Boss 3112 is limited by the helical teeth of position-limit mechanism shell 33, and thinner boss 3112 is oblique by position-limit mechanism shell 33 Tooth slides into sliding slot 331, and, thinner boss 3112 is detached from sliding slot 331 by the lower pressure of mandril 312.

In conjunction with Fig. 2, when pressing down on mandril 312, turntable 311 is driven to move down with gag lever post 313, thinner boss 3112 are detached from sliding slot 331 along 331 slide downward of sliding slot, and rotate under the action of the helical teeth of position-limit mechanism shell 33, The helical teeth of the helical teeth and position-limit mechanism shell 33 that make wider boss 3112 is clamped, so that gag lever post 313 moves up, this time limit Position bar 313 is inserted in limiting slot 231, for locking to flap 22, limits the movement of flap 22, i.e. Locked valve；When When pressing down on mandril 312 again, slide into thinner boss 3112 again by the restoring force of lockable mechanism reset spring 32 Sliding slot 331, at this point, turntable 311 is moved up with gag lever post 313, gag lever post 313 is detached from limiting slot 231, unlocks flap 22, from And Open valve.

Apparatus for controlling of lifting is similar to the structure of push type ball pen.

The structure of the jacking system of the chair lift provided by the embodiment of the utility model that surges is described in detail in above content.This The working principle of utility model is as follows:

When people sits on the seat, when needing to reduce the height of seat, the mandril 312 of pressing apparatus for controlling of lifting first is simultaneously loose Hand makes gag lever post 313 rise and be detached from limiting slot 231 under the effect of lockable mechanism reset spring 32, flap 22 is unlocked, opens Valve；It by valve button 27 and keeps to the left again, flap 22 is moved to the left, and makes the first oilhole 15, the second oilhole 16, third oilhole 10 are connected with oil duct 17 4, at this point, the hydraulic oil sealed respectively in upper cavity 18 and lower chamber 19 by the first oilhole 15, Second oilhole 16, third oilhole 10 are connected to oil duct 17, and the seat leg of 11 lower end of piston connection cannot move up and down, and are being taken Under the action of people's self gravity, hydraulic cylinder 1 is moved down, by the hydraulic oil in upper cavity 18 successively from the first oilhole 15, Three oilholes 10, oil duct 17, the second oilhole 16 are squeezed into lower chamber 19, after reaching the height for needing to adjust, unclamp valve button 27, flap 22 moves right under the action of flap reset spring 26 closes valve 2, blocks the first oilhole 15 and third oilhole 10 Connection, the then mandril 312 of pressing pressure apparatus for controlling of lifting, turntable 311 moves down while rotating again, gag lever post 313 It moves down and is caught in limiting slot 231, valve 2 is locked, valve 2 cannot be opened to the left；At this point, when personnel leave seat, because The effect of lockable mechanism in apparatus for controlling of lifting is pressed, although preset spring 13 has restoring force, valve 2 is locked, elevating mechanism Current state can still be kept.

When people sits on the seat, when needing to be promoted the height of seat, seating people is gently sat on the seat first, and then pressing rises It drops the mandril 312 of control device and looses one's grip, increase under the effect of lockable mechanism reset spring 32 gag lever post 313 and be detached from limit Slot 231 unlocks flap 22, opens valve；It by valve button 27 and keeps to the left again, flap 22 is moved to the left, and makes the first oil Hole 15, the second oilhole 16, third oilhole 10 are connected with oil duct 17 4, at this point, upper cavity 18 and difference in lower chamber 19 are close The hydraulic oil of envelope is connected to by the first oilhole 15, the second oilhole 16, third oilhole 10 with oil duct 17, the seat of 11 lower end of piston connection Chair supporting leg cannot move up and down, and under the restoring force effect of preset spring 13, hydraulic cylinder 1 is moved up, will be in lower chamber 19 Hydraulic oil successively squeezed into upper cavity 18 from the second oilhole 16, oil duct 17, third oilhole 10, the first oilhole 15, reaching need After the height to be adjusted, valve button 27 is unclamped, moves right under the action of flap reset spring 26 and closes valve 2, blocks the The connection of one oilhole 15 and third oilhole 10, then the mandril 312 of pressing pressure apparatus for controlling of lifting, turntable 311 move down together Shi Zaici rotation, gag lever post 313 are moved down and are caught in limiting slot 231, valve 2 is locked, and valve 2 cannot be opened to the left；At this point, When personnel leave seat, because of the effect of lockable mechanism in pressure apparatus for controlling of lifting, although preset spring 13 has restoring force, valve Door 2 is locked, and elevating mechanism can still keep current state.

Before factory, before sealing cover 14 does not cover, valve button 27 is pressed to the left and is kept, to upper cavity 18, lower chamber 19 And hydraulic oil is filled in oil duct 17, it does not need to pressurize, valve button 27 is unclamped after filling, finally covers tightly sealing cover 14.

The utility model can be applied to family and office space, substitute the elevating mechanism of conventional domestic, lifting office chair, The portable lifting chair that surges can be realized；The utility model can also be applied to machining occasion, for controlling the clamping of workpiece With relaxation, and it is applied to operating platform, four legs of operating platform are all made of jacking system provided by the utility model control Height, gradient of desktop etc..

The utility model can also use on other a variety of seats for needing height adjustment, for example field fishing is with light Type chair lift, can according to need setting three legs, four legs, and each supporting leg is all made of the jacking system of the utility model, field fishing Soil is such as encountered compared with Software, and seat leg can be fallen into soil, and height of seat is caused to be lower or tilt, and comfort reduces, can root It is needed according to height or seat Slant Rectify needs, adjust all supporting legs or part supporting leg.

Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to In this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation Or replacement, it should be covered within the scope of the utility model.Therefore, the protection scope of the utility model is answered described with power Subject to the protection scope that benefit requires.

Claims (1)

1. a kind of jacking system for the chair lift that surges, comprising: hydraulic cylinder, the hydraulic cylinder includes piston, piston rod, preset Spring and sealing cover, the piston are arranged in the hydraulic cylinder, and the hydraulic cylinder is separated into upper cavity and lower chamber, The sealing cover is fastened on the bottom end of the hydraulic cylinder, and the top of the hydraulic cylinder is connect with seat cushions, the preset bullet Spring is arranged in the upper cavity, and the top of the preset spring is abutted with the inner wall of the hydraulic cylinder, the preset spring Bottom end abutted with the piston, the top of the piston rod is connect with the piston, described in the bottom end of the piston rod is stretched out Sealing cover is connect with seat leg；It is characterized in that, further including valve and apparatus for controlling of lifting, wherein

The valve includes valve body, flap, valve rod, valve base, valve top cover, flap reset spring and valve button, the valve top Lid is fastened on the top of the valve body, and the valve base is fastened on the bottom end of the valve body, and the flap is arranged in the valve body It is interior, the valve body is separated into left chamber body and right chamber body, one end of the valve rod is connect with the flap, described in other end stretching Valve top cover is connect with the valve button, and the valve rod is boss structure, offers circle limit in the thicker part of the valve rod Position slot, one end of the flap reset spring are abutted with the valve base, and the other end is abutted with the flap, in the hydraulic cylinder On the inner wall of body with the first oilhole for being connected to the left chamber body and the upper cavity is offered on the inner wall of the valve body, described The second oilhole that oil duct and the connection oil duct and the lower chamber are offered on the side wall of hydraulic cylinder, in the valve body The third oilhole for being connected to the oil duct and the right chamber body is also provided on wall；

The apparatus for controlling of lifting includes lockable mechanism, lockable mechanism reset spring and position-limit mechanism shell, in the position restrainer Sliding slot is offered upwards from root edge on structure shell, and the root edge of the position-limit mechanism shell has helical teeth；The lockable mechanism packet Turntable, mandril and gag lever post are included, the lockable mechanism reset spring is set on the gag lever post, and the lockable mechanism resets Spring retainer is in the position-limit mechanism shell, and the top of the gag lever post is fixedly connected with the bottom end of the turntable, described Push rod is projected upwards in the middle part of turntable, the mandril is set on the push rod, has been projected upwards at the edge of the turntable The boss of two different in width, the upper limb of two boss are respectively provided with helical teeth, and wider boss passes through the position-limit mechanism shell Helical teeth limited, thinner boss is slid into the sliding slot by the helical teeth of the position-limit mechanism shell, and, it is thinner Boss is detached from the sliding slot by the lower pressure of the mandril.