CN101057730A - Table with lifting device - Google Patents
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- CN101057730A CN101057730A CN 200710038315 CN200710038315A CN101057730A CN 101057730 A CN101057730 A CN 101057730A CN 200710038315 CN200710038315 CN 200710038315 CN 200710038315 A CN200710038315 A CN 200710038315A CN 101057730 A CN101057730 A CN 101057730A
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Abstract
The invention relates to a table equipped with lifting device, comprising table top, angle moderating device, lifting device, column-cavity binding board, column base and column base binding board. The lifting device comprises lifting structure and driving structure; lifting structure includes the first, second and third grade overlapped column cavity, each of them are connected through pulley and slide rail, the second grade column cavity is located inside the first grade column cavity and slides up and down based on the first grade column cavity, the third column cavity is installed in the second grade column and slides up and down based on the second grade column cavity; pulley suitable to the first grade column cavity and on one side of the second grade column cavity is located between the first and second grade column cavity, and elastic wheel and spring arm on the other side of the second grade column cavity are located between the first and second grade column cavity; pulley suitable to the second grade column cavity and on one side of the third grade column cavity is located between the second and second grade column cavity, and elastic wheel and spring arm on the other side of the third grade column cavity are located between the second and third grade column cavity; the second grade and third grade column cavity can slide up and down adjustably. The invention is great importance for workers' health and work efficiency increase.
Description
Technical field
The present invention relates to the office furniture technical field, concrete is a kind of have lowering or hoisting gear, height of table top, all adjustable desk of desktop angle.
Background technology
Desk refers to handle official business use workbench here especially, is that people work, learn required instrument.The size of desk, highly, the angle of desktop all can be to people's work, study, and healthy generation certain influence.At present, no matter be the workbench that top class in a kindergarten's platform, desk or professional and technical personnel are used for being engaged in computer 3D design, it is highly all fixed, and the user of different occupation, age, height yardstick is in the state of passive adaptation.Along with the progress of science and technology, qualitative change has taken place in people's work, study, life style, and this makes existing desk can not adapt to a certain extent and satisfies the comprehensive needs of people to different " desk " function.Now, the professional and technical personnel, especially for a long time use computer to carry out the professional and technical personnel of work, the long-term application of force state that keeps static state passively, cause obesity, cardiovascular and cerebrovascular disease, lumbar spine discomfort, constipation therefrom, and problems such as " overwork ", and " overwork " person great majority are the brain workers that are engaged in sitting posture for a long time.Therefore, the new work and study mode of a kind of people of adaptation and life style needs are provided, have the height of table top lowering or hoisting gear, can regulate the desktop use angle, thereby make the user select different gestures to carry out the desk of work reasoningly according to different instructions for uses, healthy to ensureing the user, raising work, learning efficiency and sustainable development have very important significance.
In the prior art, the computer desk (China Patent No. is ZL200420111423.2) that a kind of liftable finger-board is arranged, can adjust the height of keyboard, the worry that keyboard can not raise or reduce when it had solved teenager and special build person with computer, but this technology still can't solve the problems referred to above that the overwhelming majority person of bending over one's desk working exists.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of desk with height of table top lifting control and desktop angle regulator is provided, thereby improves people's work, condition for study, satisfy the different demands of the user of different demands desk.
Purpose of the present invention can realize by following three kinds of technical schemes.
A kind of desk with lowering or hoisting gear comprises desktop, desktop angle regulator, lowering or hoisting gear, post chamber connecting plate, the stone base of column, and stone base of column connecting plate.
The desktop angle regulator comprise the hinged support of the fixedly desktop that is arranged at desktop one side, the angle modulation of regulating the desktop angle revolve, revolve the internal thread power transmission shaft that meshes a drive screw that links to each other, the fixed arm of fixing this drive screw, with described drive screw with this angle modulation, be articulated in transmission arm on this internal thread power transmission shaft, fix axis of rotation----the lift arm synchronising (connecting) rod of this transmission arm, and to be arranged on this lift arm synchronising (connecting) rod same be the lift arm of axis of rotation with it, and this lift arm top is equipped with the pulley that can slide on desktop backboard slide rail.
Lowering or hoisting gear comprises elevating mechanism and transmission mechanism, elevating mechanism comprises three grades of nestable post chambeies, transmission mechanism comprises equalizer pulley, equalizing suspension system rope, equilibrate counterweight and arrestment mechanism, and described arrestment mechanism comprises brake handle, snubbing line, eccentric cam and braking/unlatching back-moving spring.
Elevating mechanism is three grades of nestable post chambeies, is respectively first order post chamber, post chamber, the second level and third level post chamber; Be connected with slide rail with pulley between each post chamber, wherein post chamber in the second level is arranged in the first order post chamber and does lifting based on first order post chamber and slide; Third level post chamber is arranged in the post chamber, the second level and does lifting based on post chamber, the second level and slide; Be provided with the pulley that places post chamber, second level wall one side that adapts with first order post chamber between first order post chamber and the post chamber, the second level, and place post chamber, second level wall opposite side the bullet bearing up pulley, suppress arm, its corresponding slide rail is located at first order post cavity wall; Be provided with between post chamber, the second level and the third level post chamber adapt with post chamber, the second level, place the pulley of third level post chamber wall one side, and place third level post chamber wall opposite side the bullet bearing up pulley, suppress arm, its corresponding slide rail is located at second level post cavity wall; The elevating movement that state can be stretched in post chamber, the second level and third level post chamber; Top, third level post chamber and desktop trailing arm are fixedly linked.
In post chamber, the second level, be provided with the second tail rope pulley, the second equalizing suspension system rope, second equilibrate counterweight that adapt with third level post chamber.The described second tail rope pulley is fixedly installed on wall top, post chamber, the second level, second equilibrate counterweight is arranged in the post chamber, the second level and is arranged on the second tail rope pulley on top, post chamber, the second level by the suspension of the second equalizing suspension system rope, and the other end of the second equalizing suspension system rope and the second equalizing suspension system rope fixture are fixedly connected on the third level post cavity outer wall;
In first order post chamber, be provided with the first tail rope pulley, the first equalizing suspension system rope, first equilibrate counterweight that adapt with post chamber, the second level.The described first tail rope pulley is fixedly installed on wall top, first order post chamber, first equilibrate counterweight is arranged in the first order post chamber to be hung by the first equalizing suspension system rope and is arranged on the first tail rope pulley on top, first order post chamber, and the other end of the first equalizing suspension system rope is fixedly installed on the first equalizing suspension system rope fixture on the post cavity outer wall of the second level and slides with the lifting of post chamber, the second level.
The described second level also is provided with first arrestment mechanism that adapts with first order post chamber in the post chamber, and described third level post also is provided with second arrestment mechanism that adapts with post chamber, the second level in the chamber.
First arrestment mechanism and second arrestment mechanism are controlled by same brake handle, the snubbing line that links to each other with brake handle, the braking/unlatching rope connecting rod that links to each other with snubbing line, the braking/unlatching back-moving spring that matches with braking/unlatching rope connecting rod and the brake functionality box that is arranged at braking/unlatching back-moving spring one end.Wherein, the brake functionality box comprises by the up detent of Synchronization Control and descending detent two parts, described up detent and descending detent include the extension arm traveling wheel that can be synchronized with the movement with the brake functionality box, for this extension arm traveling wheel provide the walking inclined-plane brake functionality box shell on the inclined-plane delthyrium, the off-centre operation reducing brake cam that motion plays a major role to this brake functionality box of braking/unlatching, rotate the eccentric cam Braking mode holddown spring that stretches with this off-centre operation reducing brake cam, fix the eccentric cam fixed axis of this off-centre operation reducing brake cam, and the brake of limit stop function box movement locus fixedly chute hole and eccentric cam fixed axis, described eccentric cam fixed axis is fixed on the lifting column chamber.
A kind of desk with lowering or hoisting gear comprises desktop, desktop angle regulator, lowering or hoisting gear, post chamber connecting plate, the stone base of column, and stone base of column connecting plate.
The desktop angle regulator comprise the hinged support of the fixedly desktop that is arranged at desktop one side, the angle modulation of regulating the desktop angle revolve, revolve the internal thread power transmission shaft that meshes a drive screw that links to each other, the fixed arm of fixing this drive screw, with described drive screw with this angle modulation, be articulated in transmission arm on this internal thread power transmission shaft, fix axis of rotation----the lift arm synchronising (connecting) rod of this transmission arm, and to be arranged on this lift arm synchronising (connecting) rod same be the lift arm of axis of rotation with it, and this lift arm top is equipped with the pulley that can slide on desktop backboard slide rail.
Lowering or hoisting gear comprises elevating mechanism and transmission mechanism.
Elevating mechanism is three grades of nestable post chambeies, is respectively first order post chamber, post chamber, the second level and third level post chamber; Be connected with slide rail with pulley between each post chamber, wherein post chamber in the second level is arranged in the first order post chamber and does lifting based on first order post chamber and slide; Third level post chamber is arranged in the post chamber, the second level and does lifting based on post chamber, the second level and slide; Be provided with the pulley that places post chamber, second level wall one side that adapts with first order post chamber between first order post chamber and the post chamber, the second level, and place post chamber, second level wall opposite side the bullet bearing up pulley, suppress arm, its corresponding slide rail is located at first order post cavity wall; Be provided with between post chamber, the second level and the third level post chamber adapt with post chamber, the second level, place the pulley of third level post chamber wall one side, and place third level post chamber wall opposite side the bullet bearing up pulley, suppress arm, its corresponding slide rail is located at second level post cavity wall; The elevating movement that state can be stretched in post chamber, the second level and third level post chamber; Top, third level post chamber and desktop trailing arm are fixedly linked.
Be provided with three grades of nestable telescopic screw putters that adapt with it in three grades of nestable post chambeies; Be provided with first screw putter that adapts with first order post chamber in the first order post chamber, be provided with second screw putter that adapts with post chamber, the second level in the post chamber, the second level, be provided with the 3rd screw putter that adapts with third level post chamber in the third level post chamber; Fixedly connected with top, third level post chamber in the top of the 3rd screw putter, the internal thread engagement of the other end of the 3rd screw putter and second screw putter upper end, the internal thread engagement of the external screw thread of the second screw putter lower end and first screw putter upper end, the lower end of first screw putter cooperates together with the push rod transmission turbine that is arranged in the stone base of column.
This programme also comprises the electric transmissio mechanism part, the turbine that this electric transmissio mechanism partly comprises motor, be arranged on scroll bar on the motor, driven by this scroll bar, the kinematic link that one end links to each other with turbine, the push rod driving shaft worm that is connected with the kinematic link other end, and the push rod transmission turbine that matches with this push rod driving shaft worm.
As mentioned above, the lower end of first screw putter cooperates together with an end that is arranged on the push rod transmission turbine in the stone base of column, the push rod driving shaft worm that this push rod transmission turbine is engaged in this push rod transmission turbine outer wall drives, this push rod driving shaft worm joins with an end that is arranged at the kinematic link in the stone base of column connecting plate, and the other end of this kinematic link is connected to the electric transmissio mechanism part.
A kind of desk with lowering or hoisting gear comprises desktop, desktop angle regulator, lowering or hoisting gear, post chamber connecting plate, the stone base of column, and stone base of column connecting plate.
The desktop angle regulator comprises the hinged support of the fixedly desktop that is arranged at desktop one side, handle is revolved in the angle modulation of regulating the desktop angle, revolve the drive screw that links to each other with this angle modulation, fix the fixed arm of the band multi-directional ball of this drive screw, internal thread power transmission shaft with described drive screw engagement, be articulated in the transmission arm on this internal thread power transmission shaft, fix the axis of rotation of this transmission arm----lift arm synchronising (connecting) rod, and to be arranged on this lift arm synchronising (connecting) rod same be the lift arm of axis of rotation with it, and this lift arm top is equipped with the pulley that can slide on desktop backboard slide rail.
Lowering or hoisting gear comprises elevating mechanism and transmission mechanism.
Elevating mechanism is three grades of nestable post chambeies, is respectively first order post chamber, post chamber, the second level and third level post chamber; Be connected with slide rail with pulley between each post chamber, wherein post chamber in the second level is arranged in the first order post chamber and does lifting based on first order post chamber and slide; Third level post chamber is arranged in the post chamber, the second level and does lifting based on post chamber, the second level and slide; Be provided with the pulley that places post chamber, second level wall one side that adapts with first order post chamber between first order post chamber and the post chamber, the second level, and place post chamber, second level wall opposite side the bullet bearing up pulley, suppress arm, its corresponding slide rail is located at first order post cavity wall; Be provided with between post chamber, the second level and the third level post chamber adapt with post chamber, the second level, place the pulley of third level post chamber wall one side, and place third level post chamber wall opposite side the bullet bearing up pulley, suppress arm, its corresponding slide rail is located at second level post cavity wall; The lifting slip that state can be stretched in post chamber, the second level and third level post chamber; Top, third level post chamber and desktop trailing arm are fixedly linked.
The transmission mechanism of described lowering or hoisting gear comprises:
---be installed with the cable wire stiff end in third level post cavity wall lower end; Upper end in post chamber, the second level is provided with the second lifting load pulley, lower end in post chamber, the second level is provided with the pulling down pulley, the described second lifting load pulley is installed on the second post chamber lifting pulley bearing bracket, and this bearing bracket is fixed on wall upper end, post chamber, the second level; Upper end in first order post chamber is provided with the first lifting load pulley, the lower end is provided with and is used for flexible volume cable pulley and the power transmission shaft of pull line in the tractive elevating mechanism, the first lifting load pulley is installed on the first post chamber lifting pulley bearing bracket, and this bearing bracket is fixed on upper end on the wall of first order post chamber; An end of pull line is fixedly connected on the cable wire stiff end of third level post cavity wall lower end in the lifting column chamber, and the first pile warp second lifting load pulley rear overhang is walked around the pulling down pulley, and behind the pile warp first lifting load pulley, the other end is fixed on the volume cable pulley again.
---in the stone base of column of lower end, first order lifting column chamber, be provided with the volume cable pulley, one end of this volume cable pulley and kinematic link joins, the other end of described kinematic link is connected with the motor transmission turbine of stone base of column connecting plate central authorities, the motor scroll bar engagement on motor transmission turbine and the motor.
During the starter motor forward and backward, drive the volume cable pulley and tighten up, loosen the pull line that detours in three grades of post chambeies, realize the lifting in three grades of post chambeies.
For the lifting column chamber lifting that prevents desk both sides opposite position asynchronous, the technical program respectively is provided with a symmetrical attitude and controls tooth bar synchronously automatically on relative second level post cavity outer wall, respectively establish on top, first order post chamber one with the synchronous attitude of described symmetry from the symmetrical attitude of carry-over bar engagement control gear automatically synchronously, two symmetrical attitudes are fixedly connected with a connecting rod between control gear automatically synchronously, so that corresponding post chamber, both sides synchronization lifting.
The present invention's " desk with lowering or hoisting gear " has the adjustable lowering or hoisting gear of height of table top, and can regulate the use angle of desktop, be convenient to the random different posture of conversion reasoningly of user and carry out work or study, thereby improve people's work, study and healthiness condition, to ensureing labourer's health, increasing work efficiency and the productivity sustainable development has very important significance.
Description of drawings
Accompanying drawing 1A has the overall structure schematic diagram of the desk of lowering or hoisting gear for the present invention;
Accompanying drawing 1B is the overall structure schematic diagram that has the desk of lowering or hoisting gear in the embodiment of the invention 1;
Accompanying drawing 2 has the structural representation of desktop angle regulator of the desk of lowering or hoisting gear for the present invention;
Accompanying drawing 3A is the schematic diagram of transmission mechanism that has the desk of lowering or hoisting gear in the embodiment of the invention 1;
Accompanying drawing 3B is another schematic diagram of transmission mechanism that has the desk of lowering or hoisting gear in the embodiment of the invention 1;
Accompanying drawing 4A is the schematic diagram of arrestment mechanism that has the desk of lowering or hoisting gear in the embodiment of the invention 1;
Accompanying drawing 4B is another schematic diagram of arrestment mechanism that has the desk of lowering or hoisting gear in the embodiment of the invention 1;
Accompanying drawing 4C is the another schematic diagram of arrestment mechanism that has the desk of lowering or hoisting gear in the embodiment of the invention 1;
Accompanying drawing 5 is the schematic diagram of the part transmission mechanism of the desk that has lowering or hoisting gear in the embodiment of the invention 2;
Accompanying drawing 6A is the schematic diagram of motor drive mechanism part of transmission mechanism that has the desk of lowering or hoisting gear in the embodiment of the invention 2;
Accompanying drawing 6B is another schematic diagram of motor drive mechanism part of transmission mechanism that has the desk of lowering or hoisting gear in the embodiment of the invention 2;
Accompanying drawing 7 is the schematic diagram of the transmission mechanism of the desk that has lowering or hoisting gear in the embodiment of the invention 3;
Accompanying drawing 8A is the schematic diagram of motor drive mechanism part of transmission mechanism that has the desk of lowering or hoisting gear in the embodiment of the invention 3;
Accompanying drawing 8B is another schematic diagram of motor drive mechanism part of transmission mechanism that has the desk of lowering or hoisting gear in the embodiment of the invention 3;
Label in the accompanying drawing is respectively:
1, desktop, 2, the desktop angle regulator, 3, lowering or hoisting gear, 4, post chamber connecting plate, 5, the stone base of column, 6, stone base of column connecting plate, 7, angle modulation revolves handle, 8, brake handle;
21, the fixing hinged support of desktop, 23, the drive screw fixed pivot, 24, drive screw, 25, the internal thread power transmission shaft, 26, transmission arm, 27, the lift arm synchronising (connecting) rod, 28, lift arm;
31, first order post chamber, 311, slide rail, 3110, pull line, 3111, first plays the bearing up pulley extension spring, 3211, second plays the bearing up pulley extension spring, 3114, the first lifting load pulley, 314, the first tail rope pulley, 315, first equilibrate counterweight, 316, the first equalizing suspension system rope, 317, the first equalizing suspension system rope fixture, 319, first screw putter, 32, post chamber, the second level, 3201, the inclined-plane delthyrium, 3202, eccentric cam, 3203, chute hole, 3204, the eccentric cam extension arm, 3205, the extension arm pulley, 3206, the eccentric cam central shaft, 3207, eccentric cam Braking mode holddown spring, 321, slide rail, 3212, the second cable wire stiff end, 3220, the second pulling down pulley, 3113, the first lifting load pulley bracket, 3114, the first lifting load pulley, 3213, the second lifting load pulley bracket, 3214, the second lifting load pulley, 3215, the symmetry attitude is controlled tooth bar, 3216 synchronously automatically, the synchronously automatic control gear of symmetry attitude, 37, pulley, 323, play bearing up pulley, 324, the second tail rope pulley, 325, second equilibrate counterweight, 326, the second equalizing suspension system rope, 327, the second equalizing suspension system rope fixture, 328, first, two arrestment mechanisms, 3281, flexible brake string (including snubbing line 3282), 3282, snubbing line, 3283, the snubbing line locating wheel, 3284, braking/unlatching rope connecting rod, 3285, braking/unlatching back-moving spring, 3286, the brake functionality box, 3287, up detent, 3288, descending detent, 3289, the brake pulley, 329, second screw putter, 33, third level post chamber, 323,333, play bearing up pulley, 339, the 3rd screw putter;
3291, damper brake drive line, 3292, snubbing line line concentration hook, 3293, the flexible brake string holder, 3294, the desktop trailing arm;
51, motor, 52, the motor scroll bar, 53, motor transmission turbine, 54, kinematic link, 55, the volume cable pulley;
61, motor, 62, scroll bar, 63, turbine, 64, kinematic link, 65, the push rod driving shaft worm, 66, push rod transmission turbine.
The specific embodiment
A kind of desk with lowering or hoisting gear of the present invention comprises desktop, desktop angle regulator, lowering or hoisting gear, post chamber connecting plate, the stone base of column, and stone base of column connecting plate.Described lowering or hoisting gear comprises elevating mechanism and transmission mechanism.Elevating mechanism comprises three grades of nestable post chambeies, and transmission mechanism matches with three grades of nestable post chambeies; Transmission mechanism in the lowering or hoisting gear can a plurality of different technical schemes be realized, specifically introduced three embodiment herein.
Below in conjunction with accompanying drawing, specify embodiments of the present invention.
Shown in accompanying drawing 1A.A kind of desk with lowering or hoisting gear comprises desktop 1, desktop angle regulator 2, lowering or hoisting gear 3, post chamber connecting plate 4, the stone base of column 5, and stone base of column connecting plate 6.
For this embodiment one, it also comprises a brake apparatus 328 (will be introduced hereinafter).Shown in accompanying drawing 1B, there is shown the brake handle 8 of brake apparatus 328 and the angle modulation of the desktop angle regulator 2 that hereinafter will introduce is revolved 7 according to desk one schematic diagram of this embodiment one.
The concrete structure of desktop angle regulator 2 is seen shown in the accompanying drawing 2, it comprises the hinged support 21 of the fixedly desktop that is arranged on desktop one side, with this fixedly the angle modulation that links to each other of the hinged support 21 of desktop revolve 7, revolve 7 drive screws that link to each other 24 with this angle modulation, fix the drive screw fixed pivot 23 of this drive screw 24, internal thread power transmission shaft 25 with described drive screw 24 engagements, be articulated in the transmission arm 26 on this internal thread power transmission shaft 25, fix the axis of rotation-lift arm synchronising (connecting) rod 27 of this transmission arm 26, and to be arranged on this lift arm synchronising (connecting) rod 27 same be the lift arm 28 of axis of rotation with it, and these lift arm 28 tops are equipped with and can go up the pulley (not label) that slides at desktop 1 backboard slide rail (not shown).
The top installation of described lift arm 28 is a pair of can go up the pulley (not label) that slides at desktop backboard slide rail (not shown), lift arm 28 is the internal thread power transmission shaft 25 and drive screw 24 engagements of angled fixing transmission arm 26 lower ends, axle center with lift arm synchronising (connecting) rod 27, revolve 7 by the rotation angle modulation, change hinged support 21 is the angle of the transmission arm 26 and the lift arm 28 in axle center to the distance of internal thread power transmission shaft 25 to regulate synchronising (connecting) rod 27, elects the angle of inclination of desktop 1.
Described lowering or hoisting gear 3 comprises elevating mechanism (not label) and transmission mechanism (not label).
The concrete structure of elevating mechanism sees also accompanying drawing 3A and accompanying drawing 3B.Shown in accompanying drawing 3A, described elevating mechanism comprises three grades of nestable post chambeies, three grades of nestable post chambeies of elevating mechanism are respectively first order post chamber 31, post chamber, the second level 32 and third level post chamber 33, be connected with slide rail 311 (321) with pulley 37 between each post chamber, wherein second level post chamber 32 is arranged in the first order post chamber 31 and does lifting based on first order post chamber 31 and slide; Shown in accompanying drawing 3B, third level post chamber 33 is arranged in the post chamber, the second level 32, and does lifting based on the slide rail 321 on 32 inwalls of post chamber, the second level and slide; Shown in accompanying drawing 3B, move by the slide rail 311 that is arranged on 31 inwalls of first order post chamber by pulley 37 in post chamber 32, the second level, between first order post chamber 31 and post chamber, the second level 32, be provided with 31 that adapt with first order post chamber, as to place post chamber, the second level 32 chamber walls, one side pulley 37, and the bullet bearing up pulley 323 that places post chamber, the second level 32 chamber wall opposite sides; Be provided with between post chamber, the second level 32 and the third level post chamber 33 32 that adapt with post chamber, the second level, place the pulley 37 of third level post chamber 33 chamber walls, one side and the bullet bearing up pulley 333 that places third level post chamber 33 chamber wall opposite sides; The elevating movement that state can be stretched in post chamber, the second level 32 and third level post chamber 33; Third level post chamber 33 is fixedly linked with desktop trailing arm (not label).
Transmission mechanism comprises equalizer pulley, equalizing suspension system rope and equilibrate counterweight.Shown in accompanying drawing 3A and accompanying drawing 3B, be provided with the second tail rope pulley 324, second equilibrate counterweight 325, the second equalizing suspension system rope 326 and the second equalizing suspension system rope fixture 327 that adapt with third level post chamber 33 in the post chamber, the second level 32.Second equilibrate counterweight 325 is suspended on the second tail rope pulley 324 by the second equalizing suspension system rope 326 in post chamber, the second level 32, the second tail rope pulley 324 is fixedly installed on the upper end in the 32 chamber walls of post chamber, the second level, the other end of the second equalizing suspension system rope 326 links to each other with the second equalizing suspension system rope fixture 327, and the second equalizing suspension system rope fixture 327 is fixedly mounted on the outer lower end of third level post chamber 33 chamber walls;
Be provided with the first tail rope pulley 314, first equilibrate counterweight 315, the first equalizing suspension system rope 316 and the first equalizing suspension system rope fixture 317 that adapt with post chamber, the second level 32 in the first order post chamber 31.Described first equilibrate counterweight 315 is fixedly arranged in the first order post chamber 31, the first equalizing suspension system rope fixture 317 is fixedly installed on first equilibrate counterweight 315, first equalizer pulley 314 is fixedly installed on the 31 chamber walls of first order post chamber, one end of the first equalizing suspension system rope 316 links to each other with the first equalizing suspension system rope fixture 317, and its other end links to each other with first equilibrate counterweight 315.
Above-mentioned transmission mechanism also comprises the arrestment mechanism part.In third level post chamber 33, be provided with second arrestment mechanism 328 that adapts with post chamber, the second level 32, in post chamber, the second level 32, be provided with first arrestment mechanism (not shown) that adapts with first order post chamber 31.First arrestment mechanism is identical with second arrestment mechanism, 328 structures, and action principle is also identical, and is controlled by same brake handle 8, and (referring to accompanying drawing 4C) hereinafter only is described in detail second arrestment mechanism 328.
Arrestment mechanism comprises brake handle 8, eccentric cam 3202 and braking/unlatching back-moving spring 3285.(referring to accompanying drawing 4A and accompanying drawing 4B).Fig. 4 A is " arrestment mechanism " on-position; Fig. 4 B is " arrestment mechanism " releasing orientation.As shown in the figure, second arrestment mechanism 328 comprises the continuous snubbing line 3282 of flexible brake string 3281 (including snubbing line 3282) (referring to accompanying drawing 3 or Fig. 4 C), the braking/unlatching rope connecting rod 3284 that links to each other with snubbing line 3282, the braking/unlatching back-moving spring 3285 that matches with braking/unlatching rope connecting rod 3284, and the brake functionality box 3286 that is arranged at braking/unlatching back-moving spring 3285 lower ends constitutes.Wherein, brake functionality box 3286 comprises that by the up detent 3287 of Synchronization Control and descending detent 3288 two parts, described up detent 3287 and descending detent 3288 include extension arm traveling wheel 3205, the inclined-plane delthyrium 3201 on walking inclined-plane is provided for this extension arm traveling wheel 3205, the off-centre operation reducing brake cam 3202 that brake is played a major role, produce the eccentric cam Braking mode holddown spring 3207 of brake force by 3204 pairs of these off-centre operation reducing brake cams of eccentric cam extension arm, fix the eccentric cam fixed axis 3206 of this off-centre operation reducing brake cam 3202.
See also accompanying drawing 4C, aforementioned flexible brake string 3281 is concentrated to be fixed in flexible brake string holder 3293, snubbing line in the flexible brake string is come together on the described snubbing line line concentration hook 3292, and this snubbing line line concentration hook 3292 links to each other with brake handle 8 by damper brake drive line 3291.
Continue to consult accompanying drawing 4C, flexible brake string holder 3293 is fixedly mounted on the desktop trailing arm 3294, brake handle 8 is fixed in desktop hinged support 21 1 sides on the desktop trailing arm 3294 by fixed pivot (not label), when pulling brake handle 8, the snubbing line that is attached thereto 3282 drives whole brake functionality box 3286 and moves along external force direction, inclined-plane delthyrium 3201 on the brake functionality box 3286 moves thereupon, drive extension arm traveling wheel 3205 and press the force direction walking, making eccentric cam extension arm 3204 is that the center of circle is upturned with eccentric cam fixed axis 3206, make off-centre operation reducing brake cam 3202 radiuses become short, thereby unclamp the active force between the wall of inside and outside lifting column chamber, can be slided along the lifting of outer post chamber in internal layer post chamber.When the draw that stops snubbing line 3282, because back-moving spring 3285 effect of brake functionality box 328 self gravitations in addition, brake functionality box 328 glides, under " eccentric cam Braking mode holddown spring 3207 " elastic force effect to eccentric cam extension arm 3204, off-centre operation reducing brake cam 3202 radiuses strengthen, and the active force between the elevating mechanism outer chamber wall recovers, and realizes braking.
The difference of present embodiment and embodiment 1 mainly is transmission device, below in conjunction with accompanying drawing the transmission device in the present embodiment is described.
Referring to accompanying drawing 5.Lowering or hoisting gear comprises elevating mechanism and transmission mechanism in the present embodiment, elevating mechanism comprises three grades of nestable post chambeies, transmission mechanism is included in the three grades of nestable telescopic screw putters that adapt with it that are provided with in three grades of nestable post chambeies, wherein, the enforcement of elevating mechanism is identical with embodiment 1, those skilled in the art can no longer be given unnecessary details with reference to the appropriate section among the foregoing description 1 this embodiment 2 of enforcement fully herein.Hereinafter only the transmission mechanism in the lowering or hoisting gear is described in detail.
Transmission mechanism in the present embodiment lowering or hoisting gear comprises screw putter and electric transmissio mechanism part, and concrete structure is referring to accompanying drawing 5, accompanying drawing 6A and accompanying drawing 6B.
At first see also accompanying drawing 5, when three grades of post chambeies are in extended configuration, be provided with first screw putter 319 that adapts with first order post chamber 31 in the first order post chamber 31, be provided with second screw putter 329 that adapts with post chamber, the second level 32 in the post chamber, the second level 32, be provided with the 3rd screw putter 339 that adapts with third level post chamber 33 in the third level post chamber 33; One end of the 3rd screw putter 339 is fixedlyed connected with 33 tops, third level post chamber, internal thread (not shown) engagement of the other end of the 3rd screw putter 339 and second screw putter, 329 upper ends, the external screw thread (not label) of second screw putter, 329 lower ends cooperates together with an end that is arranged on the push rod transmission turbine in the stone base of column (not label) with the internal thread (not shown) of first screw putter, 319 upper ends engagement, the lower end of first screw putter 319.
Accompanying drawing 5 has been illustrated all to exist in the lowering or hoisting gear of the present invention simultaneously with play that bearing up pulley 323,333 (seeing also accompanying drawing 3B) adapts suppress wall 3131,3231.
Referring to accompanying drawing 6A and accompanying drawing 6B.They have described the detailed structure of electric transmissio mechanism part.As shown in drawings, the turbine 63 that this electric transmissio mechanism partly comprises motor 61, be arranged on scroll bar 62 on the motor 61, driven by this scroll bar 62, the kinematic link 64 that one end links to each other with turbine 63, the push rod driving shaft worm 65 that is connected with the other end of kinematic link 64, and the push rod transmission turbine 66 that is connected with this push rod driving shaft worm 65.
As mentioned above, the lower end of first screw putter 319 cooperates together with a upper end that is arranged on the push rod transmission turbine 66 in the stone base of column (not label), the push rod driving shaft worm 65 that this push rod transmission turbine 66 is engaged on this its gear of push rod transmission turbine outer wall drives, this push rod driving shaft worm 65 joins with an end that is arranged at the kinematic link 64 in the stone base of column connecting plate, and the other end of this kinematic link 64 is connected to electric-motor drive mechanism part.
When electrode switch (not shown) forward starter motor 61, by being installed in the power output scroll bar 62 drive motors transmission turbines 63 on the motor 61, by this motor transmission turbine 63 power is driven 66 rotations of push rod transmission turbine by the push rod driving shaft worm 65 that the transmission push rod that is connected its both sides is delivered in the both sides stone base of column (not label), three grades of screw putter rotations are risen; Motor 61 counter-rotatings when reverse starting electrode switch, then three grades of screw putter reverse rotations descend, and when powered-down, screw putter formula elevating mechanism can stop in any position, realizes the lifting and the braking of desktop with this.
The difference of present embodiment and embodiment 1, embodiment 2 mainly is the transmission mechanism in the lowering or hoisting gear, below in conjunction with accompanying drawing the enforcement of the transmission mechanism part of the lowering or hoisting gear in the present embodiment is described.
The transmission mechanism of lowering or hoisting gear comprises pull line 3110, cable wire lifting load pulley 3114,3214 and the 3rd cable wire stiff end 3312 in the present embodiment.
Referring to accompanying drawing 7.Present embodiment is provided with pull line 3110, is installed with cable wire stiff end 3212 in 33 inwall lower ends, third level post chamber with 33 slips of liftings simultaneously of third level post chamber in lowering or hoisting gear; Be provided with the second lifting load pulley 3214 in the upper end in post chamber, the second level 32 and be used for carrying the second lifting load pulley bracket 3213 of this second lifting load pulley 3214, the lower end in post chamber, the second level 32 is provided with the second pulling down pulley 3220.The second lifting load pulley 3214 is installed on post chamber, the second level lifting pulley bearing bracket 3113, and this bearing bracket is fixed on wall upper end, 32 chamber, post chamber, the second level; Be provided with the first lifting load pulley 3114 in the upper end of first order post chamber 31 inwalls, the lower end is provided with and is used for pull line in the tractive elevating mechanism 3110 flexible volume cable pulley 55 and kinematic link 54.The first lifting load pulley 3114 is installed on the first order post chamber lifting pulley bearing bracket 3113, and this bearing bracket is fixed on 31 inwalls upper end, first order post chamber; After an end of pull line 3110 is fixedly connected on the second cable wire stiff end 3212 in the lifting column chamber, the outstanding then pulling down pulley of walking around of elder generation's pile warp second lifting load pulley 3214, behind the pile warp first lifting load pulley 3114, the other end is fixed on the volume cable pulley 55 again.
The transmission mechanism of lowering or hoisting gear also comprises electric transmissio mechanism in the present embodiment.
Referring to accompanying drawing 8A and accompanying drawing 8B, these two detailed structure that accompanying drawing has been showed electric transmissio mechanism.The kinematic link 54 that turbine 53, one ends that described electric transmissio mechanism comprises motor 51, be installed in scroll bar 52 on the motor 51, driven by scroll bar 52 are connected with turbine 53, the volume cable pulley 55 of fixedlying connected with the other end of kinematic link 54.
In the stone base of column of lower end, first order lifting column chamber, be provided with volume cable pulley 55, this volume cable pulley 55 joins with an end of kinematic link 54, the other end of described kinematic link 54 is connected with the motor transmission turbine 53 of stone base of column connecting plate 6 central authorities, motor scroll bar 52 engagements on motor transmission turbine 53 and the motor 51.
When desk both sides elevating mechanism is used in pairs, two mechanism symmetrical posts chambeies cooperated nonsynchronous phenomenon in appearance about this elevating mechanism may occur, therefore at two relative second level post cavity outer walls the synchronous synchronously automatic control gear 3216 of symmetrical attitude of controlling tooth bar 3215 automatically and meshing with this tooth bar of symmetrical attitude is set, make two gears connect (not shown) synchronously by connecting rod (not shown), be in synchronous symmetric motion state to control two symmetrical posts chambeies.
The enforcement of present embodiment other parts is with embodiment 1, and those skilled in the art can implement the present invention about the description of electric transmissio mechanism with reference to embodiment 1 described embodiment and present embodiment fully.The concrete enforcement of other parts is no longer given unnecessary details.
Claims (7)
1. the desk with lowering or hoisting gear comprises desktop, it is characterized in that: described desk also comprises desktop angle regulator, lowering or hoisting gear, post chamber connecting plate, the stone base of column, and stone base of column connecting plate; Described lowering or hoisting gear comprises elevating mechanism and transmission mechanism; Elevating mechanism comprises mutually nested first order post chamber, post chamber, the second level and third level post chamber, be slidingly connected with pulley and slide rail between each post chamber, wherein post chamber in the second level is arranged in the first order post chamber and does lifting based on first order post chamber and slide, and third level post chamber is arranged in the post chamber, the second level and does lifting based on post chamber, the second level and slide; On the first order post chamber wall between first order post chamber and the post chamber, the second level, be provided with slide rail, post chamber, second level wall one side between first order post chamber and post chamber, the second level is provided with pulley, opposite side is provided with accordingly and suppresses arm, plays bearing up pulley on post chamber, the second level wall between first order post chamber and the post chamber, the second level; Also be provided with slide rail on post chamber, the second level wall between post chamber, the second level and the third level post chamber, also be provided with pulley on the third level post chamber wall between post chamber, the second level and the third level post chamber, being provided with of also adapting on the third level post chamber wall between post chamber, the second level and the third level post chamber suppressed arm, played bearing up pulley; The lifting slip that state can be stretched in post chamber, the second level and third level post chamber.
2. the desk with lowering or hoisting gear according to claim 1, it is characterized in that: described desktop angle regulator comprises the hinged support of the fixedly desktop that is arranged at desktop one side, handle is revolved in the angle modulation of regulating the desktop angle, revolve the drive screw that links to each other with this angle modulation, fix the fixed arm of the band multi-directional ball of this drive screw, internal thread power transmission shaft with described drive screw engagement, be articulated in the transmission arm on this internal thread power transmission shaft, fix the axis of rotation of this transmission arm----lift arm synchronising (connecting) rod, and to be arranged on this lift arm synchronising (connecting) rod same be the lift arm of axis of rotation with it.
3. the desk with lowering or hoisting gear according to claim 1 is characterized in that: the transmission mechanism of described lowering or hoisting gear comprises:
---second equalizer pulley, second equilibrate counterweight, the second equalizing suspension system rope and the second equalizing suspension system rope fixture that adapt with third level post chamber that in post chamber, the second level, are provided with.Wherein second equalizer pulley is arranged on wall upper end, post chamber, the second level, and the second equalizing suspension system rope hangs on this pulley; The second equalizing suspension system rope fixture is fixed on wall lower end, third level post chamber, and an end of the second equalizing suspension system rope links to each other with the second equalizing suspension system rope fixture, and the other end of the second equalizing suspension system rope connects second equilibrate counterweight and hangs in the post chamber, the second level; And
---first equalizer pulley, first equilibrate counterweight, the first equalizing suspension system rope and the first equalizing suspension system rope fixture that adapt with post chamber, the second level that in first order post chamber, are provided with.Wherein first equalizer pulley is arranged on first order post chamber wall one end, and the first equalizing suspension system rope hangs on this pulley; The first equalizing suspension system rope fixture is fixed on post chamber, second level wall one end, and an end of the first equalizing suspension system rope links to each other with the first equalizing suspension system rope fixture, and the other end of the first equalizing suspension system rope connects first equilibrate counterweight and hangs in the first order post chamber; And
---in post chamber, the second level, play bearing up pulley, suppress arm one side and be provided with first arrestment mechanism that adapts with first order post chamber, and in third level post chamber, play bearing up pulley, suppress arm one side and be provided with second arrestment mechanism that adapts with post chamber, the second level.
4. the desk with lowering or hoisting gear according to claim 3, it is characterized in that: described arrestment mechanism comprise brake handle, the snubbing line that links to each other with brake handle, the braking/unlatching rope connecting rod that links to each other with described snubbing line, with braking/unlatching back-moving spring that described braking/unlatching rope connecting rod links to each other, and the brake functionality box that is arranged on braking/unlatching back-moving spring one end; Wherein, the brake functionality box comprises by the up detent of Synchronization Control and descending detent two parts, described up detent and descending detent include the extension arm traveling wheel that can make the motion of brake functionality box, for this extension arm traveling wheel provide the walking inclined-plane the inclined-plane delthyrium, to this brake functionality box of braking/unlatchings move the off-centre operation reducing brake cam that plays a major role, rotate the eccentric cam Braking mode holddown spring that stretches, the eccentric cam fixed axis of fixing this off-centre operation reducing brake cam with this off-centre operation reducing brake cam.
5. the desk with lowering or hoisting gear according to claim 1 is characterized in that: the transmission mechanism of described lowering or hoisting gear comprises:
---in first order post chamber, be provided with first screw putter that adapts with first order post chamber, in post chamber, the second level, be provided with second screw putter that adapts with post chamber, the second level, and in third level post chamber, be provided with the 3rd screw putter that adapts with third level post chamber; One end of wherein said the 3rd screw putter is fixedlyed connected with third level post chamber one end, and the other end of this described the 3rd screw putter is by the internal thread engagement of external screw thread and second screw putter, one end; The other end of described second screw putter is by the internal thread engagement of external screw thread and first screw putter, one end; The other end of described first screw putter cooperates with the transmission worm gear and is fixed in the stone base of column; Second screw putter and the 3rd screw putter all can be by rotating the elevating movement that screw thread stretches state; And
---be provided with the push rod transmission turbine that links to each other with first screw putter at the first screw putter stone base of column, one end, the periphery of push rod transmission turbine is provided with the push rod driving shaft worm with its engagement, one end of push rod driving shaft worm and kinematic link joins, and the other end of kinematic link and motor side turbine join.
6. the desk with lowering or hoisting gear as claimed in claim 1 is characterized in that, the transmission mechanism of described lowering or hoisting gear comprises:
---be installed with the cable wire stiff end in third level post cavity wall lower end; Upper end in post chamber, the second level is provided with the second lifting load pulley, lower end in post chamber, the second level is provided with the pulling down pulley, the described second lifting load pulley is installed on the second post chamber lifting pulley bearing bracket, and this bearing bracket is fixed on wall upper end, post chamber, the second level; Upper end in first order post chamber is provided with the first lifting load pulley, the lower end is provided with and is used for flexible volume cable pulley and the power transmission shaft of pull line in the tractive elevating mechanism, the first lifting load pulley is installed on the first post chamber lifting pulley bearing bracket, and this bearing bracket is fixed on the wall of first order post chamber; An end of pull line is fixedly connected on the cable wire stiff end in the lifting column chamber, and the first pile warp second lifting load pulley rear overhang is walked around the pulling down pulley, and behind the pile warp first lifting load pulley, the other end is fixed on the volume cable pulley again.
---in the stone base of column of lower end, first order lifting column chamber, be provided with the volume cable pulley, one end of this volume cable pulley and kinematic link joins, the other end of described kinematic link is connected with the motor transmission turbine of stone base of column connecting plate central authorities, the motor scroll bar engagement on motor transmission turbine and the motor.
7. the desk with lowering or hoisting gear according to claim 6, it is characterized in that: described lowering or hoisting gear respectively is provided with the synchronous attitude of a symmetry and controls tooth bar automatically on the relative second level post cavity outer wall in desk both sides, one symmetry of controlling the tooth bar engagement automatically with the synchronous attitude of the described symmetry automatic control gear of attitude synchronously respectively is set on top, first order post chamber, two symmetries are fixedly connected with a connecting rod between the automatic control gear of attitude synchronously, so that corresponding post chamber, desk both sides synchronization lifting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100383155A CN101057730B (en) | 2007-03-22 | 2007-03-22 | Table with lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100383155A CN101057730B (en) | 2007-03-22 | 2007-03-22 | Table with lifting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101057730A true CN101057730A (en) | 2007-10-24 |
| CN101057730B CN101057730B (en) | 2010-08-11 |
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ID=38864146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100383155A Expired - Fee Related CN101057730B (en) | 2007-03-22 | 2007-03-22 | Table with lifting device |
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| Country | Link |
|---|---|
| CN (1) | CN101057730B (en) |
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| CN101933711A (en) * | 2010-08-27 | 2011-01-05 | 封晏 | Table with lifting device |
| CN103976555A (en) * | 2014-05-08 | 2014-08-13 | 朱景超 | Household type myopia prevention learning desk |
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| CN101933711A (en) * | 2010-08-27 | 2011-01-05 | 封晏 | Table with lifting device |
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| CN103976556A (en) * | 2014-05-08 | 2014-08-13 | 朱景超 | Lifting leg of learning table |
| CN103976555B (en) * | 2014-05-08 | 2016-03-02 | 朱景超 | Domestic type myopia prevention desk for study |
| CN107019447A (en) * | 2017-05-25 | 2017-08-08 | 巫溪银汉农业有限公司 | The utcracker that anti-walnut shell splashes |
| CN107173988A (en) * | 2017-06-02 | 2017-09-19 | 李建甫 | It is a kind of that there is the computer desk for adjusting height function |
| CN110115458B (en) * | 2018-02-06 | 2021-05-14 | 河南科技大学第一附属医院 | Pathology teaching is with organ show stand |
| CN110115458A (en) * | 2018-02-06 | 2019-08-13 | 曹一飞 | A kind of Teaching of Pathology organ show stand |
| CN108497695A (en) * | 2018-04-18 | 2018-09-07 | 李永彬 | A kind of laborsaving elevating mechanism |
| CN108703754A (en) * | 2018-06-12 | 2018-10-26 | 深圳市中航生命健康科技有限公司 | A kind of backbone measuring device for surface myoelectric instrument |
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