CN206599404U - Slim lifting platform - Google Patents

Abstract

A kind of slim lifting platform, includes a lower platform, a upper mounting plate, a travel(l)ing rest and an air pressure telescopic link part；The upper mounting plate is above the lower platform and relative can move up and down；The travel(l)ing rest includes and is misplaced and is installed between the upper and lower platform inside and outside the inner frame and an outer framework for intersecting pivot joint, the inter and outer gimbal, by the pivot of the inter and outer gimbal upper mounting plate can be driven to be moved up and down with respect to the lower platform；The air pressure telescopic link part can provide air pressure thrust and be hubbed between the inter and outer gimbal, the active force to form lifting when the inter and outer gimbal has intersecting angle；Thereby, when folding, the inter and outer gimbal all can be parallel and is flat between the upper and lower platform, forms very thin and good applicability lifting platform.

Description

Slim lifting platform

Technical field

The utility model staggers about the lowering or hoisting gear applied to desktop, particularly a kind of backing positions, can reduce folding Shi Gaodu slim lifting platform.

Background technology

The daily life of the mankind now, has inseparable relation, let us with the field such as computer, network, communication Either in work or in life, most time is all to sit in front of a computer, is operated processing, browses current events, study The affairs of each side such as new knowledge or remote communication, therefore, people also easily because sitting or sitting posture it is bad and caused by it is healthy Problem.

It is on the market to have the hoistable platform/same table that lifted on demand more, by the long station of seat, the alternating for sitting of standing, To improve the health problem that sitting is likely to result in.And known elevating mechanism, it is the profit by floor installation on the desktop of script mostly With movable arms, the pivot start of pneumatic shuttle, platform can be risen or be fallen relative to former desktop；However, existing lifting Platform, the configuration based on mechanism, with suitable weight and thickness, is mounted to fixed position more and used, and do not risen in platform When rising（Extreme lower position）Still there is suitable height, the height compared to former desktop can form significant drop, cause using upper Discomfort.

There is weak point in view of known hoistable platform still more, creator is the road for Improvement at those deficiencies, Finally there is the utility model generation.

Utility model content

Main purpose of the present utility model provides a kind of slim lifting platform, by the design that travel(l)ing rest misplaces, significantly Space shared during folding is reduced, the lifting platform of light, slim state is constituted, convenient use person, which moves and is placed in precalculated position, to be made With, and excessive difference in height will not be formed with former desktop when not rising, it can reduce using upper inconvenience and discomfort.

And then, the utility model accommodates the mechanism of folding using the accommodation space of upper and lower platform indent, can more reduce whole The basic thickness of body, forms very thin structure design, and increase uses upper comfortableness.

For up to above-mentioned purpose, the technical scheme that the utility model is used is：A kind of slim lifting platform, it includes putting down Platform and a upper mounting plate, the upper mounting plate is above the lower platform and can be moved up and down with respect to the lower platform, is characterized in, flat on this Platform has a collapsed position and an at least raised position relative to the lower platform；The lifting platform also includes a travel(l)ing rest and a gas Telescoping rod is pressed, the travel(l)ing rest is included to be misplaced inside and outside an inner frame and an outer framework for pivot joint intersected with each other, the inter and outer gimbal And be installed between the upper and lower platform, and the inter and outer gimbal respectively with its at least one end be slideably linked to the lower platform and The upper mounting plate, enables the pivot of the inter and outer gimbal to drive the upper mounting plate to be moved up and down with respect to the lower platform；Wherein, when the inside casing When frame and the outer framework are all parallel to the lower platform, the upper mounting plate is in the collapsed position and parallel to the lower platform, and works as and be somebody's turn to do When inner frame and outer framework tool intersecting angle, the upper mounting plate is in the raised position and parallel to the lower platform；The air pressure is stretched Contracting rod member provides air pressure thrust and is hubbed between the inter and outer gimbal, is lifted to be formed when the inter and outer gimbal has intersecting angle The active force risen.

Preferably, the lower platform surface is arranged with accommodation space, when the upper mounting plate is in the collapsed position, this is interior Framework and the outer framework are flat in the lower accommodation space.

Preferably, the upper mounting plate area is more than the lower platform, and the upper mounting plate bottom surface is arranged with accommodation space on one so that When the upper mounting plate is in collapsed position, the lower platform can be housed inside on this in accommodation space.

Preferably, the inner frame is defined as inner frame epimere and inner frame hypomere according to the position for intersecting pivot joint, and the housing Frame is defined as outer framework epimere and outer framework hypomere according to the position for intersecting pivot joint, and the length of the inner frame epimere is equal to the outer framework The length of epimere, the length of the inner frame hypomere is equal to the length of the outer framework hypomere, and the length of the inner frame epimere is less than The length of the inner frame hypomere.

Preferably, the two ends of the air pressure telescopic link part are hubbed at the inner frame epimere and the outer framework lower end respectively, or It is hubbed at the inner frame hypomere and the outer framework epimere.

Preferably, the two ends of the inter and outer gimbal are all slideably linked to the lower platform and the upper mounting plate, and the inner frame Or the outer framework is pivoted with an at least positioning linkage rod and is linked to the lower platform or upper mounting plate formation positioning.

Preferably, the outer framework hypomere is pivoted with lower positioning linkage rod, and the lower positioning linkage rod is separately pivoted to the lower platform shape Into positioning, and the inner frame epimere is pivoted with positioning linkage rod, and positioning linkage rod is separately pivoted to upper mounting plate formation positioning on this.

Preferably, the lower end of the inner frame is linked in the guide groove interior on the lower platform surface via lower slide-bar in one, The upper end of the inner frame via upper slide-bar in one be linked on the one of the upper mounting plate bottom surface in guide groove, and the lower end of the outer framework It is linked to via an outer lower slide-bar in the guide groove outer on the lower platform surface, the upper end of the outer framework connects via an outside upper slide-bar Knot is into outer guide groove on the one of the upper mounting plate bottom surface；Also, the lower interior guide groove, interior guide groove on this, the lower outer guide groove and this on outer lead Groove is parallel each other, and when the upper mounting plate is in collapsed position, the lower interior guide groove is located relatively at the inner side of outer guide groove on this, And interior guide groove is located relatively at the inner side of the lower outer guide groove on this.

Preferably, the inner frame is in generally ㄇ types, comprising an inside casing cross bar and two inside casing poles, and the inside casing cross bar is defined as The interior lower slide-bar, and the outer framework is in generally ㄇ types, comprising a housing cross bar and two housing poles, and the housing cross bar is defined as this Slide-bar under outside.

Preferably, one end of the air pressure telescopic link part is articulated in the housing cross bar, the other end is hubbed at the inner frame epimere.

Preferably, the stopping element of an adjustable position may be placed at the interior lower slide-bar, the interior upper slide-bar, the outer downslide At the active path of axle or the outside upper slide-bar, the stopping element can be adjusted and limit the interior lower slide-bar can Relative sliding model Enclose, and then the extensible angle of the inter and outer gimbal can be limited, to limit the height that the upper mounting plate can be lifted.

Preferably, the stopping element located at the lower platform the interior lower slide-bar active path at, comprising one protrude out only Stopper and two parallel elongated holes, the stopper section is to the backstop inside casing cross bar, and each elongated hole runs through spiral shell via positioning piece respectively Enter the lower platform surface, the stopping element is adjustably secured to the lower platform surface.

It is pivotally connected preferably, the inter and outer gimbal intersects via a crossover pivot, and one is further provided with the crossover pivot and is delayed Stamping, the bolster is between the inter and outer gimbal, to be switched in the inter and outer gimbal close to the angle of the parallel lower platform When spending, the active force of buffering can be pressurized and provided.

Preferably, the air pressure telescopic link part includes the outer bar and an interior bar of energy relative telescopic, and enter in the interior bar external enwergy One step is provided with an elastic parts, can provide the thrust of recovery when being pressurized.

Preferably, the side of upper mounting plate two is further convexly equipped with the convex portion for being easy to grasping to operate.

More specifically understand to make above-mentioned purpose of the present utility model, effect and feature to obtain, hereby said according to drawings below It is bright as follows.

Brief description of the drawings

Fig. 1 is the schematic perspective view that the utility model embodiment is in raised position.

Fig. 2 is another visual angle schematic diagram of the utility model relative to Fig. 1.

Fig. 3 is the perspective diagram that the utility model embodiment is in collapsed position.

Fig. 4 is the planar structure schematic diagram that the utility model embodiment is in collapsed position.

Fig. 5 is the schematic side view that the utility model embodiment is in collapsed position.

Fig. 6 is view of the utility model embodiment by stopping element backstop.

Fig. 7 is the view that the compression of the utility model embodiment bolster is acted on.

The enlarged drawing that Fig. 7 a are A in Fig. 7.

Fig. 8 is the view that the compression of the utility model embodiment elastic parts is acted on.

The enlarged drawing that Fig. 8 a are B in Fig. 8.

Symbol description：

1 lower platform

10 times accommodation spaces

Guide groove in 11 times

12 times outer guide grooves

2 upper mounting plates

Accommodation space on 20

Guide groove on 21

Outer guide groove on 22

23 convex portions

3 travel(l)ing rests

30 inner frames

301 inner frame epimeres

302 inner frame hypomeres

31 inside casing cross bars

32 inside casing poles

Lower slide-bar in 33

Upper slide-bar in 34

35 inside casing connecting rods

40 outer frameworks

401 outer framework epimeres

402 outer framework hypomeres

41 housing cross bars

42 housing poles

43 outer lower slide-bars

44 outside upper slide-bars

5 air pressure telescopic link parts

51 outer bars

52 interior bars

53 elastic parts

6 positioning linkage rods

61 times positioning linkage rods

Positioning linkage rod on 62

7 stopping elements

71 elongated holes

72 keepers

73 stopper sections

8 crossover pivots

81 bolsters.

Embodiment

Fig. 1 is referred to Fig. 4, it is known that the primary structure of slim lifting platform of the present utility model includes a lower platform 1, one Upper mounting plate 2, a travel(l)ing rest 3, an air pressure telescopic link part 5 and a stopping element 7.

It is in horizontal lower surface that the lower platform 1, which has, and the lower platform 1 forms accommodation space 10 from table side is recessed, Lower interior guide grooves 11 of the position provided with two transverse directions kept left in the lower accommodation space 10, the position kept right in the lower accommodation space 10 is set There are two horizontal lower outer guide grooves 12, the lower outer guide groove 12 is located relatively at the outside of the lower interior guide groove 11, and the two puts down each other OK.

The upper mounting plate 2, it is located at the top of lower platform 1 and with horizontal upper surface, the lateral evagination in both sides on surface Provided with the convex portion 23 for being easy to grasping to operate, the area of the upper mounting plate 2 is more than lower platform 1, and is arranged with one accommodating sky in bottom side Between 20, profile of accommodation space 20 is more than lower platform 1 on this, and position to the left is horizontal provided with two in accommodation space on this 20 Upper outer guide groove 22, position to the right is provided with two horizontal upper interior guide grooves 21 in accommodation space on this 20, the outer phase of guide groove 22 on this Be pointed to the outside of interior guide groove 21 on this, the two be parallel to each other and in addition parallel to lower platform 1 lower outer guide groove 12 and it is lower in lead Groove 11.

The travel(l)ing rest 3, consists predominantly of an inner frame 30 and an outer framework 40 for pivot joint intersected with each other, the internal and external frames It is misplaced and is installed between the upper and lower platform 2,1 inside and outside frame 30,40.Inter and outer gimbal 30,40 is in the ㄇ type frameworks of staggered relative, Inner frame 30 includes an inside casing cross bar 31 and two inside casing poles 32, and outer framework 40 includes a housing cross bar 41 and two housing poles 42；Intersect the position of pivot joint according to inter and outer gimbal 30,40, inner frame 30 is divided into inner frame epimere 301 and inner frame hypomere 302, outer framework 40 is divided into outer framework epimere 401 and outer framework hypomere 402；In the present embodiment, the length of inner frame epimere 301 Degree is equal to the length of outer framework epimere 401, and the length of inner frame hypomere 302 is equal to the length of outer framework hypomere 402, and inner frame The length of epimere 301 and outer framework epimere 401 is slightly less than the length of inner frame hypomere 302 and outer framework hypomere 402, can thereby allow Inter and outer gimbal 30,40 is more smoothly when being in horizontal folding, will not produce and fasten because of positional fault.In addition, inside casing cross bar 31 For the lower end of inner frame 30, and lower slide-bar 33 is defined as in one, two ends stretch into lower interior guide groove 11 and can be in wherein sliding, and in two Two free ends of frame pole 32 are the upper end of inner frame 30, are respectively equipped with one slide-bar 34 and stretch into interior guide groove 21 and can be in Wherein slide；Housing cross bar 41 is the lower end of outer framework 40, is defined as an outer lower slide-bar 43, two ends stretch into lower outer guide groove 12 and can In wherein sliding, and two free ends of two housing poles 42 are the upper end of outer framework 40, are respectively equipped with an outside upper slide-bar 44 and stretch into In upper outer guide groove 22 and can be in wherein sliding.

The air pressure telescopic link part 5, it is mainly to provide air pressure thrust and is hubbed between inter and outer gimbal 30,40, in The inter and outer gimbal forms the active force of lifting when having intersecting angle, thrust expansion can be independently produced when in use and intersects pivot joint Inter and outer gimbal 30,40；Wherein, the position configured for the two ends of air pressure telescopic link part 5, can be hubbed on respectively on inner frame Section 301 and outer framework lower end 402, or inner frame hypomere 302 and outer framework epimere 401 are hubbed on respectively；And in the present embodiment In, one end of air pressure telescopic link part 5 is articulated in housing cross bar 41, and the other end is hubbed at inner frame epimere via an inside casing connecting rod 35 301。

The stopping element 7, is mainly arranged on lower platform 1, and positioned inside casing cross bar 31（Interior lower slide-bar 33）Work At dynamic path, enable the stopping element 7 be adjusted and for limit inside casing cross bar 31 can Relative sliding scope, and then reach limit Inter and outer gimbal 30,40 processed can pivot the angle of expansion, use the height that limitation upper mounting plate 2 can be lifted.In feasible embodiment In, the stopping element 7 may be placed at the position of any slide-bar, such as be arranged on interior lower slide-bar 33, interior upper slide-bar 34, outer downslide The position of axle 43 or outside upper slide-bar 44, all can pass through backstop any slide-bar to reach limitation inter and outer gimbal 30,40 pivoting angles Purpose.

In feasible embodiment, inter and outer gimbal 30,40 can be slideably linked to its one end respectively lower platform 1 and Upper mounting plate 2, another end is then linked to lower platform 1 and upper mounting plate 2 in a fixed manner respectively, by the pivot of inter and outer gimbal 30,40 Upper mounting plate 2 can be driven to be moved up and down with respect to lower platform 1；And in the present embodiment, the two ends of inter and outer gimbal 30,40 are all slidably Ground is linked to lower platform 1 and upper mounting plate 2, and the inter and outer gimbal 30,40 should be linked to lower platform 1 provided with an at least positioning linkage rod 6 Or the formation positioning of upper mounting plate 2, as shown in Figures 1 to 4, the present embodiment is to be pivoted with lower positioning linkage rod 61 in outer framework hypomere 402, And the another lower platform 1 that is pivoted to of the lower positioning linkage rod 61 forms positioning, and inner frame epimere 301 is pivoted with positioning linkage rod 62, and Positioning linkage rod 62 is separately pivoted to the formation positioning of upper mounting plate 2 on this.

In the present embodiment, upper mounting plate 2 can have a collapsed position and several raised positions, when inter and outer gimbal 30,40 all During parallel to the lower platform, the upper mounting plate 2 is in the collapsed position, and when inter and outer gimbal 30,40 has intersecting angle, on this Platform 2 is in the raised position；As shown in Figures 1 and 2, when stopping element 7 does not form backstop, upper mounting plate 2 can be lifted to most High position, it is another as shown in fig. 6, when the formation backstop of stopping element 7, upper mounting plate 2 is limited to predetermined height and position.

When actual use, it is assumed that slim lifting platform is first in unrisen collapsed position（As shown in Figure 3）, now interior, Outer framework 30,40 and air pressure telescopic link part 5 are all in the horizontal direction of parallel lower platform 1, therefore the air pressure of air pressure telescopic link part 5 pushes away Power can not promote inter and outer gimbal 30,40 voluntarily to pivot expansion；When user's upper mounting plate 2 to be lifted, it can catch and hold both sides protrusion Convex portion 23, slightly exerts a force and lifts upper mounting plate 2, and now inter and outer gimbal 30,40 is pivoted relative to each other and has produced intersecting angle therewith, And the also inclined state of air pressure telescopic link part 5 so that air pressure thrust can start to act, and inter and outer gimbal is promoted naturally 30th, 40 further spread out, until extensible maximum angle（The extreme higher position that i.e. upper mounting plate 2 can rise, as shown in Figure 1, Figure 2 institute Show）, and the active force that can be supported using the air pressure thrust formation of air pressure telescopic link part 5；Certainly, user is also using stopping element 7 limit the angle that inter and outer gimbal 30,40 pivotably deploys, and then reach the purpose of the regulation and control lifting heights of upper mounting plate 2.

Again please also refer to Fig. 3 to Fig. 5, when the present embodiment is in collapsed position, inter and outer gimbal 30,40 all can be in water Level land is received into the lower accommodation space 10 of lower platform 1, and now the upper accommodation space 20 of upper mounting plate 2 can be whole by lower platform 1 again Body is accommodated in wherein, and the upper interior guide groove 21 of upper mounting plate 2 and upper outer guide groove 22 can stretch into lower accommodation space 10, and upper interior guide groove 21 Positioned at the inner side of lower outer guide groove 12, upper outer guide groove 22 is located at the outside of lower interior guide groove 11.

In the present embodiment, stopping element 7 includes the parallel elongated hole 71 in a stopper section 73 and two protruded out, can in the lump referring to Shown in Fig. 3 and Fig. 6, the stopper section 73 is run through via positioning piece 72 respectively to the backstop inside casing cross bar 31, each elongated hole 71 The surface of lower platform 1 is screwed into, the stopping element 7 is adjustably secured to the predetermined position in the surface of lower platform 1.

Refer to again shown in Fig. 7 and Fig. 7 a, the inter and outer gimbal 30,40 intersects via a crossover pivot 8 to be pivotally connected, and the friendship Bolster 81 can be equipped with by pitching position of the pivot 8 between inter and outer gimbal 30,40, and this bolster 81 can be torsion spring, be configured to Start to produce cushion effect when inter and outer gimbal 30,40 is switched to predetermined angular, in shown in the present embodiment, when upper mounting plate 2 gradually drops When lower, because air pressure telescopic component 5 is gradually tilted, the vertical support power that can be provided is reduced, therefore when inter and outer gimbal 30,40 is pivoted When extremely close to the angle of the parallel lower platform 1（Close to collapsed position）, bolster 81 start be pressurized and can provide buffer effect Power.

In the present embodiment, air pressure telescopic link part 5 includes an outer bar 51 and an interior bar 52 for energy relative telescopic, and for example Fig. 8 And shown in Fig. 8 a, the periphery of the interior bar can be further provided with an elastic parts 53, the elastic parts 53 is usually spring, works as air pressure When telescoping rod 5 is contracted to certain position, elastic parts 53 can be produced the thrust of recovery by compression, thereby, can increase air pressure The castering action power of telescoping rod 5.

In summary described, slim lifting platform of the present utility model is simple in construction, light, and the structure design of dislocation can subtract Basic thickness during few folding, convenient use person arbitrarily puts and used, and is not likely to produce sense of discomfort, and actually one has novelty and enters The creation of step property, files an application new patent in accordance with the law.But the content of described above, preferred embodiment only of the present utility model is said Change, modification, change or equivalent replacement bright, extended such as according to technological means of the present utility model and category, also should all fall Enter in patent claim of the present utility model.

Claims (10)

1. a kind of slim lifting platform, it includes a lower platform and a upper mounting plate, and the upper mounting plate is located above the lower platform and can phase The lower platform is moved up and down；It is characterized in that；The upper mounting plate has a collapsed position and at least one liter relative to the lower platform Position is played, and the slim lifting platform also includes a travel(l)ing rest and an air pressure telescopic link part；The travel(l)ing rest is comprising intersected with each other It is misplaced and is installed between the upper and lower platform inside and outside an inner frame and an outer framework for pivot joint, the inter and outer gimbal, and this is inside and outside Framework is slideably linked to the lower platform and the upper mounting plate with its at least one end respectively, enables the pivot band of the inter and outer gimbal The upper mounting plate is moved to move up and down with respect to the lower platform；Wherein, should when the inner frame and the outer framework are all parallel to the lower platform Upper mounting plate is in the collapsed position and parallel to the lower platform, and when the inner frame and outer framework tool intersecting angle, on this Platform is in the raised position and parallel to the lower platform；The air pressure telescopic link part provides air pressure thrust and to be hubbed at this inside and outside Between framework, the active force to form lifting when the inter and outer gimbal has intersecting angle.

2. slim lifting platform as claimed in claim 1, it is characterised in that the lower platform surface, which is arranged with, houses sky Between, when the upper mounting plate is in the collapsed position, the inner frame and the outer framework are flat in the lower accommodation space；And put down on this Table top product is more than the lower platform, and the upper mounting plate bottom surface is arranged with accommodation space on one so that the upper mounting plate is in collapsed position When, the lower platform can be housed inside on this in accommodation space.

3. slim lifting platform as claimed in claim 1 or 2, it is characterised in that the inner frame is determined according to the position for intersecting pivot joint Justice is into inner frame epimere and inner frame hypomere, and the outer framework is defined as outer framework epimere and outer framework according to the position for intersecting pivot joint Hypomere, the length of the inner frame epimere is equal to the length of the outer framework epimere, and the length of the inner frame hypomere is equal to the outer framework The length of hypomere, and the length of the inner frame epimere is less than the length of the inner frame hypomere.

4. slim lifting platform as claimed in claim 3, it is characterised in that the two ends of the air pressure telescopic link part are hubbed at respectively The inner frame epimere and the outer framework lower end, or it is hubbed at the inner frame hypomere and the outer framework epimere.

5. slim lifting platform as claimed in claim 3, it is characterised in that the two ends of the inter and outer gimbal all slideably connect Tie in the lower platform and the upper mounting plate, and the inner frame or the outer framework are pivoted with an at least positioning linkage rod and are linked to the lower platform Or upper mounting plate formation positioning；Wherein, when the outer framework hypomere is pivoted with the positioning linkage rod, lower positioning linkage rod is defined as, and The lower positioning linkage rod is separately pivoted to lower platform formation positioning, and when the inner frame epimere is pivoted with the positioning linkage rod, definition For upper positioning linkage rod, and positioning linkage rod is separately pivoted to upper mounting plate formation positioning on this.

6. slim lifting platform as claimed in claim 5, it is characterised in that the lower end of the inner frame connects via lower slide-bar in one Knot is into the guide groove interior once on the lower platform surface, and the upper end of the inner frame is linked to the upper mounting plate bottom surface via upper slide-bar in one One in guide groove, and the lower end of the outer framework is linked to the guide groove outer on the lower platform surface via an outer lower slide-bar In, the upper end of the outer framework is linked on the one of the upper mounting plate bottom surface in outer guide groove via an outside upper slide-bar；Also, being led in this is lower Groove, interior guide groove, the lower outer guide groove and outer guide groove is parallel each other on this on this, and when the upper mounting plate is in collapsed position, The lower interior guide groove is located relatively at the inner side of outer guide groove on this, and interior guide groove is located relatively at the inner side of the lower outer guide groove on this.

7. slim lifting platform as claimed in claim 6, it is characterised in that the inner frame is in generally ㄇ types, horizontal comprising an inside casing Bar and two inside casing poles, and the inside casing cross bar is defined as the interior lower slide-bar, and the outer framework is in generally ㄇ types, includes a housing cross bar And two housing poles, and the housing cross bar is defined as the outer lower slide-bar.

8. slim lifting platform as claimed in claim 7, it is characterised in that it is outer that one end of the air pressure telescopic link part is articulated in this Frame cross bar, the other end is hubbed at the inner frame epimere.

9. slim lifting platform as claimed in claim 8, it is characterised in that the stopping element of an adjustable position is arranged at this Interior lower slide-bar, the interior upper slide-bar, at the active path of the outer lower slide-bar or the outside upper slide-bar, the stopping element can be adjusted and limit Slide-bar processed can Relative sliding scope, and then the angle of inter and outer gimbal expansion can be limited, can be lifted with to limit the upper mounting plate Highly；Wherein, the stopping element comprises at least a stopper section protruded out and an elongated hole, and the stopper section is used to the foregoing slide-bar of backstop, And the elongated hole is adjustably secured to the lower platform surface via positioning piece.

10. slim lifting platform as claimed in claim 9, it is characterised in that the inter and outer gimbal intersects via a crossover pivot Pivot joint, and is further provided with a bolster on the crossover pivot, the bolster between the inter and outer gimbal, in this is interior, When outer framework is switched to close to the angle of the parallel lower platform, the active force of buffering can be pressurized and provided.