CN2382298Y

CN2382298Y - Height regulator

Info

Publication number: CN2382298Y
Application number: CN 99213354
Authority: CN
Inventors: 曾春荣
Original assignee: Xinye Enterprise Co Ltd
Current assignee: Xinye Enterprise Co Ltd
Priority date: 1999-06-23
Filing date: 1999-06-23
Publication date: 2000-06-14
Anticipated expiration: 2009-06-23

Abstract

The utility model relates to a height regulator, which is assembled between a worktable and a base and is provided with an upright external tube which is fixedly connected with the base. The internal part of the external tube is movably provided with a connecting rod and an internal tube which is fixedly connected to the worktable and is engaged with the connecting rod; an upright slide groove is arranged on the external side wall of the internal tube; the external tube is provided with a fixing component which passes through an end and is arranged in the slide groove; a water-proof slide sleeve is tightly arranged between the external tube and the internal tube; a helical gear is fixedly arranged at the bottom end of the connecting rod, and the helical gear is engaged with a helical gear which is fixedly connected with a handle. When the handle is rotated, the connecting rod is driven to rotate in situ. Accordingly, the spirally connected height between the connecting rod and the internal tube can be changed to indirectly adjust the height of the worktable.

Description

Height adjuster

The utility model relates to a kind of height adjuster, refer in particular to a kind of helical gears of two engagements that utilize and drive upright connecting rod original place rotation, with drive one and the interior pipe that screws togather of connecting rod make the height adjuster of upper and lower displacement variation.

As shown in Figure 1, it is a kind of use schematic sectional view of height adjuster in the past, height adjuster 10 was assembled in 12 of a workbench 11 and bases in the past, it mainly comprises a upright outer tube 101 and a upright screw rod 103, wherein, 12 welding of these outer tube 101 bottoms and base, on outer tube 101, offer always to screwed hole 102; And the above-mentioned upright screw rod 103 of engagement on this screwed hole 102, this screw rod 103 tops welding a plate 104, spiral shell is solid mutually to borrow a plurality of screws 105 between this connecting plate 104 and workbench 11 bottoms; When desire is adjusted the height of workbench 11, base 12 is maintained static, rotary table 11 drives screw rod 103 rotations again, and outer tube 101 is done relative motion up and down, reaches the purpose of adjusting workbench 11 height whereby.

Though this kind height adjuster 10 in the past can get a desired effect in design, but owing to be to be means directly in the design to change screw rod 103 and 102 of the screwed holes position that is spirally connected, all necessary rotary table 11 when therefore at every turn adjusting height, above-mentioned adjustment mode is in some occasion and be not suitable for, for example when workbench 11 is the desktop of dining table, put directly rotation under the situation of food on the table, cause the food displacement easily; When workbench 11 was the seat support of chair for another example, the people just must rotate seat support by first egress of chair again during the adjustment seat height, and is also inconvenient in the adjustment when workbench 11 is as if the storing weight certainly, and this is that height adjuster 10 uses the upward desirable place of difficulty title in the past; In addition, height adjuster 10 lacked water-tight device in design in the past, therefore only was adapted at indoor use, and this also is the place that haves much room for improvement in height adjuster 10 designs in the past.

Therefore, the purpose of this utility model is providing a kind of user of convenience to operate and be adapted at the height adjuster of outdoor application.

The technical solution of the utility model is: a kind of height adjuster can be assembled in a workbench and and be positioned between the base of workbench below, so as to adjusting the height of workbench; Wherein, above base, set firmly a upright outer tube, between this outer tube wall, have always to axle track, this axle track inside sets firmly a fixed head with a upright perforation, assembling one fixture that radially is provided with and stretches in the axle track has a through hole on the outer tube wall below the fixed head on tube wall; But in the perforation of fixed head, set up the axially connecting rod of rotation of an original place, have one and the homoaxial thread segment of axle track on this connecting rod; Wear a guiding mechanism on the described through hole, this guiding mechanism one affixed axle, this affixed aixs cylinder can drive the handle of affixed axle rotation for the outer end assembling one of tube wall, and folder establishes one and the affixed outer cover of outer tube between this handle and fixed axis, and folder is established a collision mat again between outer cover and outer tube; Set firmly the active oblique gear of an interlock on the described fixed axis, this active oblique gear stretches into that an end has an engaging piece in the axle track, described engaging piece and and one be meshed with passive helical gear below connecting rod is fixed in fixed head; Below workbench, set firmly pipe in, should have an inner tubal wall that axially is sheathed in the axle track by interior pipe, on inner tubal wall, offer a screwed hole that can screw togather, on the inner tubal wall lateral surface, offer again always to the chute that also can supply this fixture to stretch into corresponding to the position of fixture for the thread segment of connecting rod.

Height adjuster as previously discussed, wherein, described fixture stretches into the interior end of chute and is equiped with a catch.

Height adjuster as previously discussed, wherein, the sheathed ring in the axle track top of described outer tube is close to the sliding sleeve of outer tube wall and inner tubal wall.

Below by preferred embodiment and accompanying drawing, the utility model height adjuster is elaborated, in the accompanying drawing:

Fig. 1 is a kind of use schematic sectional view of height adjuster in the past.

Fig. 2 is the use schematic sectional view of the utility model one preferable possible embodiments.

Fig. 3 is the exploded view of the guiding mechanism of the utility model one preferable possible embodiments.

Fig. 4 is the partial sectional view of the utility model one preferable possible embodiments.

See also shown in Figure 2, the height adjuster 2 of present embodiment, can be assembled in 22 of a workbench 21 of upper and lower settings and bases, so as to adjusting the height of workbench 21, above-mentioned workbench 21 can be any article that the seat support of chair, the desktop of desk, the working face of storing object etc. need to adjust height; And this height adjuster 2 comprises: pipe 6 in an outer tube 3, a connecting rod 4, the guiding mechanism 5 and; Wherein: this outer tube 3, uprightly be fixed on base 22 tops, its mainly 31 of outer tube walls have always to axle track 32, be provided with a horizontal fixed plate 33 that is welded in outer tube wall 31 inner surfaces in axle track 32 inside, said fixing plate 33 central authorities have always to perforation 331, the position that is positioned at fixed head 33 belows again on this outer tube wall 31 is cutd open and is provided with a through hole 34, at the sheathed plastic cement sliding sleeve 35 in axle track 32 top end opening places, on outer tube wall 31 position of sheathed sliding sleeve 35 more radially spiral shell establish the fixture 36 of a screw form, the ends that this fixture 36 stretches in the axle track 32 set firmly a plastic cement catch 37.

This connecting rod 4, be located at vertically downward in the perforation 331 of fixed head 33, have one and axle track 32 coaxial and be positioned at the thread segment 41 of fixed head 33 tops, the axially outstanding bar in described thread segment 41 bottoms directly dwindles and is located at inserting section 42 in the perforation 331, the bottom that aforementioned inserting section 42 protrudes in perforation 331 is a connection terminal 421, this connecting rod 4 also can bore a hole 331 for the fulcrum original place rotates, and directly changing because of bar 41 of inserting section 42 and thread segments becomes a shoulder 43 that reliably is butted on above the fixed head 33.

As shown in Figure 3, this guiding mechanism 5, be installed in the space of the through hole 34 of outer tube 3 and fixed head 33 belows, have a level and be located in affixed axle 51 on the through hole 34, described affixed axle 51 protrudes in the fitting portion 511 that through hole 34 outer ends extend axially a rectangular column, and in fixed axis 51 axis bodies, offer an axial bolt apertures 512 by fitting portion 511 ends, above-mentioned fitting portion 511 is located in the square opening 521 on the leader 52, utilize a screw rod 23 to lock bolt apertures 512 again with fixedly fixed axis 51 and handle 52, this handle 52 just can drive affixed axle 51 rotations, an end plug that stretches into axle track 32 on affixed axle 51 is gone into one first gear hole 531 of an active oblique gear 53, this active oblique gear 53 has an engaging piece 532, described engaging piece 532 also meshes with a passive helical gear 54, this is had one second gear hole 541 by passive helical gear 54, and connection terminal 421 close-fittings of connecting rod 4 are filled in second gear hole 541; For aforementioned components being erected on the through hole 34, establish an outer cover 55 at

handle

52 and 53 folders of active oblique gear again, the position that this outer cover 55 relies on outer tube 3 has a slice can abut in abutment face 551 on the tube wall 31, establish a collision mat that prevents to seep water 56 in

abutment face

551 and 31 folders of tube wall, described abutment face 551 relends several screw rods 57 and is installed in tube wall 31 by the place, below; Assembling back rotating handles 52 can drive active oblique gear 53 rotations, and then drives the connecting rod 4 original places rotation of passive helical gear 54 and affixed one.

As shown in Figure 2, pipe 6 is hollow form and has the inner tubal wall in being set in sliding sleeve 35 61 always in this, and in order to make connecting rod 4 axial displacement therein, the internal diameter of interior pipe 6 is greater than thread segment 41 external diameters; The connecting plate 62 of a level is established on above-mentioned inner tubal wall 61 tops, this connecting plate 62 is installed in workbench 21 bottoms, on inner tubal wall 61 corresponding to the position of connecting rod 4 offer one only account in the pipe 6 somes directly to screwed hole 611, this screwed hole 611 can screw togather for the thread segment 41 of connecting rod 4, and the scope of above-mentioned screwed hole 611 also can be the length range of pipe 6 in whole; On the lateral surface of inner tubal wall 61, offer a upright chute 612 (seeing Fig. 4 for details) again corresponding to the position of catch 36.

As Fig. 2, shown in 4, when the present embodiment desire is adjusted the height of workbench 3, rotatable handles 52 drives the rotation of active oblique gear 53 original places, described active oblique gear 53 also thereby the passive helical gear 54 of transmission, and to drive connecting rod 4 331 be that the fulcrum original place rotates to bore a hole, when connecting rod 4 original places rotate, should in pipe 6 can't rotate under the restriction that fixture 36 and catch 37 prop up chute 612 being subjected to, in connecting rod 4 rotation and under the double action that interior pipe 6 can't rotate, the position that pipe 6 changed on the thread segment 41 that is screwed onto connecting rod 4 in described rotary power will order about, and pipe 6 is with respect to moving on the connecting rod 4 in making, this moment and interior pipe 6 affixed workbench 21 are also upwards lifted to desired height; Opposite, when wanting to reduce the height of workbench 21, counter-rotating handle 271 just can carry out.

Present embodiment just can stop pipe 6 to rotate as long as fixture 36 ends are positioned at chute 612 in design, the purpose of assembling plastic cement catch 37 is to stablize, do not shake for pipe 6 in making is more smooth-going when moving axially, so the utility model is not necessary element with catch 37 in design; In addition, guiding mechanism 5 of the present utility model also can be located at the top position of the fixed head 33 of outer tube 3, has height adjustable effect equally.

By above explanation as can be known, the utility model does not need rotary work-table 21 troublesomely when adjusting the height of workbench 21, needs only swing handle 52 easily, just can make workbench 21 move on to desired height; Simultaneously because above-mentioned sliding sleeve 35 and collision mat 56 have the effect of waterproof, therefore the utility model is when outdoor application, rainwater or malaria are difficult for making important actuated element oxidation and rusting, particularly must furnish for a long time in outdoor furniture, also will pay attention to the device of waterproof.

Claims

1, a kind of height adjuster can be assembled in a workbench and and be positioned between the base of workbench below, so as to adjusting the height of workbench; It is characterized in that: above base, set firmly a upright outer tube, between this outer tube wall, have always to axle track, this axle track inside sets firmly one and has a upright fixed head of boring a hole, assembling one fixture that radially is provided with and stretches in the axle track has a through hole on the outer tube wall below the fixed head on tube wall; But in the perforation of fixed head, set up the axially connecting rod of rotation of an original place, have one and the homoaxial thread segment of axle track on this connecting rod; Wear a guiding mechanism on the described through hole, this guiding mechanism one affixed axle, this affixed aixs cylinder can drive the handle of affixed axle rotation for the outer end assembling one of tube wall, and folder establishes one and the affixed outer cover of outer tube between this handle and fixed axis, and folder is established a collision mat again between outer cover and outer tube; Set firmly the active oblique gear of an interlock on the described fixed axis, this active oblique gear stretches into that an end has an engaging piece in the axle track, described engaging piece and and one be meshed with passive helical gear below connecting rod is fixed in fixed head; Below workbench, set firmly pipe in, should have an inner tubal wall that axially is sheathed in the axle track by interior pipe, on inner tubal wall, offer a screwed hole that can screw togather, on the inner tubal wall lateral surface, offer again always to the chute that also can supply this fixture to stretch into corresponding to the position of fixture for the thread segment of connecting rod.

2, height adjuster as claimed in claim 1 is characterized in that: described fixture stretches into the interior end of chute and is equiped with a catch.

3, height adjuster as claimed in claim 1 is characterized in that: the sheathed ring in the axle track top of described outer tube is close to the sliding sleeve of outer tube wall and inner tubal wall.