CN101933711A

CN101933711A - Table with lifting device

Info

Publication number: CN101933711A
Application number: CN 201010267378
Authority: CN
Inventors: 封晏
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-08-27
Filing date: 2010-08-27
Publication date: 2011-01-05
Anticipated expiration: 2030-08-27
Also published as: CN101933711B

Abstract

The invention provides a table with a lifting device, which is characterized in that the cross section of three-stage telescoped column cavity is rectangle, and the rectangular column cavity is composed of two opposite (positive and negative) [-shaped cavities by way of riveting, screw fastening or welding butt by a lifting-pulley guide rail in the cavity; a bearing beam is arranged in the lower end of the inner portion of the first-stage column cavity; an upper pulley installation notch and a lower pulley installation notch are respectively arranged at the two walls of one side of the lower half part of the second-stage column cavity and one side of the lower half part of the third-stage column cavity, wherein at least one group of upper pulley installation notches is arranged; the position at the other side of the column cavity and opposite to the pulley-block notch of the third-stage column cavity is provide with a locating pulley, a built-in lever-type elastic wheel carrier and built-in elastic wheels; a pulley cavity is respectively fixed at the outer sides of the notches of the second-stage column cavity, and the cavity body of the pulley cavity and the corresponding position of the notch on the column cavity are also provided with pulley installation notches which are consistent with the notch on the column cavity; and the position at the other side of the column cavity opposite to the pulley-block notch of the column cavity is provided with a locating pulley frame and pulleys as well as an external lever-type elastic wheel carrier and external elastic wheels.

Description

Desk with lowering or hoisting gear

Technical field

The present invention relates to the office furniture technical field, concrete is a kind of desk with lowering or hoisting gear.

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, has the height of table top lowering or hoisting gear, thereby make the user select differing heights 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 present invention is the patent that continues of patent (200710038315), provides a kind of height to regulate arbitrarily, and can regulate the use angle of desktop, is convenient to the desk that the random different posture of conversion reasoningly of user is carried out work or study.

For achieving the above object, the present invention adopts following technical scheme:

A kind of desk with lowering or hoisting gear is characterized in that: described desk comprises desktop, seat plinth, lowering or hoisting gear, desktop load trailing arm and solid shape carriage; 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, the cross section in post chamber is a rectangle, and relative [the shape cavity connects with riveted joint, screw by the lifting pulley guide rail in the chamber or butt welding forms by positive and negative two in this rectangle post chamber; Or the also section bar of characteristic customization cavity and guide rail one in view of the above; Lower end in first order post chamber is provided with the load crossbeam; Be respectively equipped with on two walls of post chamber, second level Lower Half one side, following two parts pulley is installed recess, wherein the top pulley is installed recess and is provided with one group at least, a pulley chamber is fixed in each recess outside respectively, pulley chamber cavity can become single face according to the sheet metal thickness cutting and bending, the semiclosed rectangular case that two sides or three side sealing close, by welding, screw or rivet are fixed on top sheave recess relevant position, post chamber, the second level, or also can thicker material by after the machine cuts machine-shaping with screw, rivet or be weldingly fixed in top sheave recess relevant position, post chamber, the second level, cavity component is up and down opened, and also can organize one up and down; Pulley chamber cavity also is provided with the pulley consistent with post chamber upper notch with post chamber upper notch opposite position recess is installed; And be provided with location pulley yoke and external lever bullet bearing up pulley frame in the opposite side position, post chamber relative with this post chamber assembly pulley recess; On two walls of third level post chamber Lower Half one side, also be respectively equipped with upper and lower two parts pulley recess is installed, wherein top is provided with one group of pulley at least recess is installed, on the relative post chamber opposite side two wall positions of this assembly pulley recess, be provided with location pulley recess, and be provided with built-in lever bullet bearing up pulley frame in the post chamber below this location pulley recess; Be slidingly connected with pulley and slide rail between each post chamber, pulley is arranged on the recess or wheel carrier in above-mentioned post chamber by wheel shaft, 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; Opposite side is provided with location pulley yoke, pulley and external lever bullet bearing up pulley frame and bullet bearing up pulley accordingly on post chamber, the second level wall between first order post chamber and the post chamber, the second level; Also be provided with the location pulley in the location pulley recess on the third level post chamber wall opposite side between post chamber, the second level and third level post chamber accordingly and thereunder be provided with built-in lever bullet bearing up pulley frame and the bullet bearing up pulley.

Lifting column, seat plinth and the desktop load trailing arm of described desktop below is independent, and lifting column only has one, and lifting column can pass through the driven by shaking lifting, at this moment desk

---the relevant position is provided with first screw putter that adapts with first order post chamber in first order post chamber, the relevant position is provided with second screw putter that adapts with post chamber, the second level in post chamber, the second level, and the relevant position is provided with the 3rd screw putter that adapts with third level post chamber in third level post chamber; The top of wherein said the 3rd screw putter is established a load bearing and is rotatably connected with top, third level post chamber, and the other end of this described the 3rd screw putter is by the internal thread engagement of its external screw thread and second screw putter upper end; The other end of described second screw putter is by the internal thread engagement of its external screw thread and first screw putter upper end; The lower end of described first screw putter is fixed on the load crossbeam of bottom, first order post chamber; The elevating movement that second screw putter and the 3rd screw putter all can stretch state by the rotation of screw rod; And

---below the load bearing on the 3rd screw putter top, establish a bevel gear of fixedlying connected with the 3rd screw putter; Can establish a screw rod location bearing under the 3rd screw putter bevel gear, this screw rod location bearing is fixedly installed on the wall of third level post chamber by a support;

---in lifting column desktop load trailing arm or thereunder be provided with hand-operated lifting crank mechanism, this mechanism is made of the bearing block of crank, kinematic link, kinematic link telescopic and fixed conveyor connecting rod telescopic; Bearing block is fixedly connected on two walls in third level post chamber by a crane span structure, kinematic link telescopic one end is the cannulated sleeve that both sides have two chutes, the other end is relative thinner solid cylinder, this kinematic link telescopic and its solid cylinder also can be divided into two detachable parts, can tie by joint tongue or transmission and connect transmission, the solid cylinder of kinematic link telescopic is fixedlyed connected with a bevel gear after passing bearing block upper bearing (metal) endoporus, and this bevel gear then becomes an angle of 90 degrees engagement with the 3rd screw putter bevel gear; The kinematic link that one end is provided with a transmission pilot pin is arranged in the kinematic link telescopic, this kinematic link is can be along transversal stretching slippage in the chute length distance in cannulated sleeve under the restriction of transmission pilot pin, but telescopic can only rotation synchronously under the drive of kinematic link pilot pin; The other end of kinematic link is provided with crank, and is fixed in the desktop load trailing arm or the below by an axle sleeve, bearing block or bearing fixing arm;

Described desk has single lifting column pattern, this moment, lifting column, seat plinth and the desktop load trailing arm of desktop below were independent, lifting column only has one, and lifting column can be realized lifting by the motor driving scroll turbine, and this transmission mechanism has two kinds of set-up modes that the essence effect is identical:

First kind of mode, when this transmission mechanism was located at upper end, third level post chamber, the first screw putter lower end was fixed on the load crossbeam of lower end in the first order post chamber; And below the load bearing on the 3rd screw putter top, fixedly install a turbine; Respectively establish the bearing block that a tape spool holds with turbine corresponding height position on the chamber wall of both sides, third level post chamber, scroll bar and turbine engagement also are arranged on this diaxon bearing, and an end of scroll bar links to each other with the rotor of the motor that is arranged on the outside, third level post chamber;

The second way, when this transmission mechanism was located at lower end, first order post chamber, the 3rd screw putter top was inserted it by a bolt and is fixedlyed connected with upper end, third level post chamber bolt; Establish a load bearing in first order post chamber on the load crossbeam of lower end, this bearing is nested in the turbine, fixedlys connected with the first screw putter lower end in the turbine top; Respectively establish the bearing block that a tape spool holds with turbine corresponding height position on the chamber wall of both sides, first order post chamber, scroll bar and turbine engagement also are arranged on this diaxon bearing, and an end of scroll bar links to each other with the rotor of the motor that is arranged on the outside, first order post chamber;

Described single lifting column pattern can adopt synchronizing wheel to be with the kind of drive synchronously, and lifting column can be with the realization lifting synchronously by the motor-driven synchronizing wheel, and this transmission mechanism also has two kinds of identical set-up modes of essence effect:

First kind of mode, when this transmission mechanism was located at upper end, third level post chamber, the first screw putter lower end was fixed on the load crossbeam of lower end in the first order post chamber; And below the load bearing on the 3rd screw putter top, fixedly install a synchronizing wheel; Offer a punch holes with synchronizing wheel corresponding height position on the chamber wall of third level post chamber one side, synchronously band passes this hole the 3rd screw putter synchronizing wheel and the driving synchronizing wheel that is arranged on the rotor outside one side of third level post chamber is linked to each other;

The second way, when this transmission mechanism was located at lower end, first order post chamber, the 3rd screw putter top was inserted it by a bolt and is fixedlyed connected with upper end, third level post chamber bolt; Establish a load bearing in first order post chamber on the load crossbeam of lower end, this bearing is nested in the synchronizing wheel, fixedlys connected with the first screw putter lower end in the synchronizing wheel top; Offer a punch holes with synchronizing wheel corresponding height position on the chamber wall of first order post chamber one side, synchronously band passes this hole the first screw putter synchronizing wheel and the driving synchronizing wheel that is arranged on the rotor outside one side of first order post chamber is linked to each other;

Described desk also has two lifting column patterns, the lifting column of desktop below, seat plinth and lifting column desktop load trailing arm are left-right symmetry and are located at both sides, desktop below at this moment, lifting column has two, link to each other by seat plinth carrier bar, post chamber connecting plate, synchronous band cover and the solid shape carriage of desktop between the two, and with the driven by shaking lifting, this moment desk:

---the relevant position is provided with first screw putter that adapts with first order post chamber in first order post chamber, the relevant position is provided with second screw putter that adapts with post chamber, the second level in post chamber, the second level, and the relevant position is provided with the 3rd screw putter that adapts with third level post chamber in third level post chamber; The top of wherein said the 3rd screw putter is established a load bearing and is rotatably connected with top, third level post chamber, and the other end of this described the 3rd screw putter is by the internal thread engagement of its external screw thread and second screw putter upper end; The other end of described second screw putter is by the internal thread engagement of its external screw thread and first screw putter upper end; The other end of described first screw putter is fixed on the load crossbeam of bottom, first order post chamber; The elevating movement that second screw putter and the 3rd screw putter all can stretch state by the rotation of screw rod;

---establish a bevel gear of fixedlying connected below the load bearing on the 3rd screw putter top in the lifting column of hand-operated lifting crank one side with the 3rd screw putter; Can establish a screw rod location bearing under the 3rd screw putter bevel gear, this screw rod location bearing is fixedly installed on the wall of third level post chamber by a support;

---lifting column third level post chamber and vertical connection of desktop load trailing arm, in lifting column desktop load trailing arm or thereunder be provided with hand-operated lifting crank mechanism, this mechanism has the bearing block of crank, kinematic link, kinematic link telescopic and fixed conveyor connecting rod telescopic to constitute; Bearing block is fixed on two walls in third level post chamber by a crane span structure, kinematic link telescopic one end is the cannulated sleeve that both sides have two chutes, the other end is relative thinner solid cylinder, the solid cylinder of kinematic link telescopic is fixedlyed connected with a bevel gear after passing bearing block upper bearing (metal) endoporus, and this bevel gear then becomes an angle of 90 degrees engagement with the 3rd screw putter bevel gear; The kinematic link that one end is provided with a transmission pilot pin is arranged in the kinematic link telescopic, this kinematic link is can be along transversal stretching slippage in the chute length distance in sleeve under the restriction of transmission pilot pin, but telescopic can only rotation synchronously under the drive of kinematic link pilot pin; The other end of kinematic link is provided with crank, and by a bearing block or bearing fixing arm be fixed in the desktop load trailing arm or below; And

---on the 3rd screw putter in being provided with the third level lifting column chamber of hi/local crank one side fixedly connected bevel gear above or below establish a synchronizing wheel of fixedlying connected with the 3rd screw putter, fixedly install too on the same position of the 3rd screw putter in the third level lifting column chamber of another lifting column that is symmetrical set one with the identical synchronizing wheel of this synchronizing wheel height unanimity, connect with synchronous band between two synchronizing wheels.

Lifting column, seat plinth and lifting column desktop load trailing arm are the symmetrical both sides, desktop below of being located at, and lifting column has two, link to each other by a plinth carrier bar, post chamber connecting plate, synchronous band cover and the solid shape carriage of desktop between the two, and lifting column passes through the motor-driven lifting,

---the relevant position is provided with first screw putter that adapts with first order post chamber in first order post chamber, the relevant position is provided with second screw putter that adapts with post chamber, the second level in post chamber, the second level, and the relevant position is provided with the 3rd screw putter that adapts with third level post chamber in third level post chamber; The top of wherein said the 3rd screw putter is established a load bearing and is rotatably connected with top, third level post chamber, and the other end of this described the 3rd screw putter is by the internal thread engagement of its external screw thread and second screw putter upper end; The other end of described second screw putter is by the internal thread engagement of its external screw thread and first screw putter upper end; The other end of described first screw putter (lower end) is fixed on lower end, lifting column first order post chamber and the synchronizing wheel of seat in the plinth, and synchronizing wheel is arranged on the load crossbeam by the load bearing; The elevating movement that second screw putter and the 3rd screw putter all can stretch state by the rotation of screw rod; And

---lifting column first order post chamber and seat plinth be vertical to be connected and to be symmetrical set present plinth connecting plate both sides, the load crossbeam of lower end, first order post chamber is provided with the load bearing, this two symmetrical load bearing respectively is nested in the identical synchronizing wheel, the synchronizing wheel top links to each other with one-level push rod lower end, be with the continuous two symmetrical synchronizing wheels of a process seat plinth connecting plate synchronously, the motor of band synchronizing wheel is located on the plinth connecting plate and by two pulley tighteners motor drum in-phase and synchronous band is agreed with; Or this mode also can be provided with the motor of above-mentioned band synchronizing wheel the both sides, front and back that present plinth is installed the lifting column position, synchromesh gear on the load bearing of the lower end, first order post chamber in the installation motor one side seat plinth is made as the synchronizing wheel of double-layer integrally, when connecting the synchronizing wheel of lower end, left-right symmetry first order post chamber, be arranged on the synchronizing wheel on the rotor in the rear side seat plinth of first order post chamber with another band connection synchronously with a synchronous band; A bolt and slotting being located by connecting of chamber, both sides, upper end, third level lifting column chamber wall bolt are then established in third level push rod upper end.

The load crossbeam side that the seat plinth is installed in the position, lifting column chamber is provided with an electric conductor mounting bracket (this support also can adopt nonmetallic materials), and the electric conductor mounting bracket is provided with three electrode connection stake installing holes; The top in the third level lifting column chamber directly over this electric conductor mounting bracket is provided with a nonmetal spacer, on the nonmetal spacer and under electric conductor mounting bracket relative position be provided with three electrode connection stake installing holes equally; Telescopic electric conductor is made of telescopic antenna or spring, in the electrode connection stake installing hole on the nonmetal spacer above two ends are separately fixed at and the electric conductor mounting bracket of below, be provided with insulation sleeve and insulation spacer in the electrode connection stake installing hole of lower end electric conductor metal mounting bracket; Telescopic electric conductor is provided with flexible insulating sheath outward, insulating sheath is inside and outside two-layer nestable alternately, the length of two insulation sleeves is about about 55% of electric conductor extension limit length, one end of ectonexine insulation sleeve is separately fixed on the electric conductor mounting bracket of below and on the nonmetal spacer of top, and nonmetal spacer drives and its relative another layer insulating sheath of insulating sheath lifting slippage of fixing during with the lifting column lifting; The importing of power supply and leading-out terminal are connected in the electrode stake at two ends up and down.

Described desktop stabilizing mechanism is made of flexible tooth bar group and synchromesh gear group, and flexible tooth bar group is that the toothed rack bar shaped square column applying slip identical with another root thickness is provided with, and the synchromesh gear group is that circular shaft two ends respectively fixedly install an identical gear; Flexible tooth bar be about two groups arranged side by side, be symmetricly set on the both sides of the single lifting column in desktop below respectively, connect with the synchromesh gear group between the two and dynamically control, the two ends of flexible tooth bar group are the engaging lug on Connection Block plinth and the table top with bearer respectively; The tooth bar and the bar shaped square column slip bond end of two flexible tooth bar groups are respectively established a pair of slippage spacer, one end of the spacer of two band synchronous gear shaft installing holes is fixedly installed on bar shaped square column one end both sides respectively, two synchromesh gears are installed in and mesh on the tooth bar that is arranged on two symmetries that overlap with the slip of bar shaped square column the rearward position on the present plinth both sides of the lower end hinged securement of two bar shaped square columns in the synchromesh gear installing hole respectively; One end of the spacer of another group band stay hook is separately fixed at the both sides of tooth bar slip bond end, the other end of this spacer then slides and hooks the bar shaped square column, the other end of the tooth bar of two symmetries (on) be articulated in respectively on the engaging lug of table top with bearer of front side, single lifting column both sides desktops below; Two tooth bars and bar shaped square column can the synchronously level and smooth telescopic movings of symmetry.

Rear side in single lifting column first order lifting column chamber is set with one or two vertical stability column of existing side by side, the lower end of stability column is fixed on the rear side of first order lifting column by a stability column lower carriage, the upper end is fixed on the upper end of first order lifting column by another stability column upper bracket, establish on the stability column one can be on vertical stability column the vertical stability column slippage of the hound cover (twin columns then use the fixing two-tube slippage cover of existing side by side) of slippage up and down, when desktop is reduced to when minimum, the slippage cover is in vertical stability column lower end, the lower end of two symmetrical hounds is connected in the left and right sides of slippage cover, the angled respectively left-right symmetry of the other end of hound is connected on the desktop bottom bracket engaging lug, when lifting column rose, the slippage cover rose along vertical stability column slippage simultaneously with hound; Hound can be the single lifting column both sides under the desktop that are symmetricly set in, and also can adopt the V-arrangement group to be symmetricly set in lifting column both sides under the desktop.

Rear side is established a desk lamp, computer display establishing mounting bracket on top, lifting column third level post chamber, and the establishing support is fixed on third level post chamber upper end rear side, also can be installed on the encorbelmenting of desktop load trailing arm third level post chamber rear side; The establishing support is overlooked and is V-arrangement (Y shape), the V-arrangement of choosing is pitched a terminal side and is provided with Desk lamp support inserting column installing hole, can peg graft for commercially available establishing desk lamp, opposite side is provided with the display/panel bracket mounting socket, the establishing support of (display screen will not design same table with telescopic display screen special stand according to different model before interface forms unified standard) two lifting column same table also can directly prolong encorbelmenting of both sides desktop load trailing arm third level post chamber rear side, and be provided with and jack be installed thereon, constitute the left and right sides single-column arranged side by side establishing support of encorbelmenting.

The advantage of the technical solution adopted in the present invention is:

" desk with lowering or hoisting gear " it use height to regulate arbitrarily, 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, ensure user's health status, raising work, learning efficiency and productivity sustainable development are had very important significance.The present invention has then carried out further developing innovation to existing technical scheme, make new scheme when having increased function of use, more reasonable occupation mode reliably is provided, the present invention also makes manufacturing process more simple and easy to do, more stable quality is reliable, reduced manufacturing cost, enlarged the use crowd, made the more household person occupation mode that secures good health of having ready conditions.

Below in conjunction with accompanying drawing the embodiment and advantages of the present invention are further explained.

Description of drawings

Accompanying drawing 1 is two lifting pillar overall structure schematic diagrames of the present invention's " desk with lowering or hoisting gear ";

Accompanying drawing 2 is the integral arrangement figure of the driven by shaking form of two lifting pillars of the present invention's " desk with lowering or hoisting gear ";

Accompanying drawing 3 is the integral arrangement figure of the type motor-driven of two lifting pillars of the present invention's " desk with lowering or hoisting gear "; (A) places structural configuration schematic diagram on the connecting plate of post chamber for motor among the figure; (B) place the structural configuration schematic diagram of lifting column rear side for motor;

Accompanying drawing 4 is the partial structurtes schematic diagram of the rack-and-pinion desktop dynamic equilibrium mechanism of single lifting pillar of the present invention's " desk with lowering or hoisting gear ";

Accompanying drawing 5 overall structure schematic diagrames for the present invention's's " desk " single lifting column driven by shaking form and rack-and-pinion desktop dynamic equilibrium mechanism with lowering or hoisting gear;

Accompanying drawing 6 is the integral arrangement figure of the diagonal brace rod-type desktop dynamic equilibrium mechanism same table of single lifting column driven by shaking form of the present invention's " desk with lowering or hoisting gear ";

Accompanying drawing 7 for the synchronizing wheel of single lifting column type motor-driven of the present invention's " desk " with lowering or hoisting gear synchronously with the partial structurtes schematic diagram of the kind of drive

Accompanying drawing 8 is the partial structurtes schematic diagram of the turbine worm kind of drive of single lifting column type motor-driven of the present invention's " desk with lowering or hoisting gear ";

Accompanying drawing 9 is the concrete structure schematic diagram in the present invention's's " desk with lowering or hoisting gear " lifting column chamber, and a, b, c are the STRUCTURE DECOMPOSITION schematic diagram of the cross section of A, B, C among the figure; A ', b ', c ' are the cross sectional representation according to the section bar of the cavity of A, B, C characteristic customization and guide rail one;

Accompanying drawing 10 is the partial structurtes schematic diagram of the multi-form cavity of the present invention's's " desk with lowering or hoisting gear " post chamber, second level pulley cavity segment;

Accompanying drawing 11 is the driven by shaking form elevating mechanism of the present invention's's " desk with lowering or hoisting gear " single, double lifting column and the concrete fit structure schematic diagram of transmission mechanism;

Accompanying drawing 12 is the electrically conducting manner structural representation of the present invention's's " desk with lowering or hoisting gear " type motor-driven;

Label in the accompanying drawing is respectively:

D, the two lifting columns of expression, are represented single lifting column at S, in u/d, the expression/and the below; S/d, expression list/even numbers;

D1/S1, desktop, the S1u/S1d desktop rises, state when falling, D2/S2, the seat plinth, D3/S3, lifting column, D4/S4, the desktop trailing arm, D5, post chamber connecting plate, S5, post chamber/drawout cubicle backboard, D6, seat plinth connecting plate, D7/S7, solid type/the glove of desktop/collecting frame, S8a, reduction tooth bar group and synchromesh gear group (rack-and-pinion desktop dynamic equilibrium mechanism), S8a1, tooth bar, S8a2, the bar shaped square column, S8a3, synchromesh gear, S8a4, the gear synchronising (connecting) rod, S8a5, the spacer of band synchromesh gear installing hole, S8a6, the spacer of band stay hook, S8b, Jackstay type desktop dynamic equilibrium mechanism, S8b1a, simple root hound (omitting another root), S8b1b, shaped inclined strut bar group, S8b2a/S8b2b, (single/pair) the vertical stability column slippage of hound cover, S8b3a/S8b3b, list/pair vertical stability column, S8b4a/S8b4b, vertical stability column lower carriage, S8b5a/S8b5b, vertical stability column upper bracket, S8b6, on (hound) engaging lug, S9, the drawout cubicle mounting, S10, drawout cubicle, D (S) 11, desk lamp/computer display establishing support, S1u, state when desktop rises, S1d, state when desktop is fallen, 31, first order lifting column chamber, 31L/31R, first order post chamber positive and negative [shape cavity, 312, the horizontal Beam of load, 314, positive and negative [the shape cavity connector in slide rail/first order post chamber, 3112s, single synchronizing wheel, 3112d, two synchronizing wheels, D3113d/S3113d, load bearing (underlying/standard), the d3114a underlying is with synchronously, the rearmounted band (descending) synchronously of d3114b is put synchronous band, D3115/S3115 on the S3114u (single-column), the motor side synchronizing wheel, 3116, motor, D3117a/D3117b, pulley tightener, 3118, the manual switch conductive mechanism, 31181, the electric conductor mounting bracket, 31182, flexible electric conductor, 31183, nonmetal spacer, 31184u/31184d, the nestable formula insulating sheath that stretches, 31185, power supply import and export terminal, 31186, insulation sleeve and insulation spacer, 31187, limit switch, S3119a, turbine, S3119a, scroll bar, 31110, the scroll bar bearing block, 32, lifting column chamber, the second level, 32L/32R, post chamber, the second level positive and negative [shape cavity, 324, positive and negative [the shape cavity connector in slide rail/post chamber, the second level, 325, the location pulley yoke, 3251/3252,3261/3262,3271/3272, wheel shaft/pulley, 326a/326b, 326u, 326ua/326ub, / 326d, 326da/326db, on 326u '/326d ', the lower sheave chamber, 326u3/326u4,326d3/326d4, on (post chamber, the second level), under organize pulley install recess/on, under organize pulley chamber pulley recess be installed, 327, external lever bullet bearing up pulley frame, 33, third level lifting column chamber, 33L/33R, third level post chamber positive and negative [shape cavity, 334, positive and negative [the shape cavity connector in slide rail/third level post chamber, 3311/3312, wheel shaft/pulley, 331u, 331d/331b, (third level lifting column chamber) pulley is installed recess/location pulley recess, 311 is installed, first order push rod, 322, second level push rod, 333, third level push rod, 3331u, the load bearing (on/standard), 3332, the 3rd screw putter bevel gear, 3333, location bearing and support, 3334, on put synchronizing wheel, D3335, on put synchronous band, D3336, on put synchronous band cover, 3337, the 3rd screw putter and third level lifting column chamber gim peg, 335, driven by shaking mechanism, 3351, kinematic link telescopic bevel gear, 3355, (kinematic link telescopic) bearing block and crane span structure, 3352, the cannulated sleeve of band chute, 3352a, separate type cannulated sleeve solid cylinder part, 3352b, the separate type cannulated sleeve chute part of stretching, 3353a/3353b, pilot pin/kinematic link, 3354, crank, 336a/336b, kinematic link locating shaft bearing/kinematic link locating shaft bearing arm, 337, built-in lever bullet bearing up pulley frame, 3371/3372, wheel shaft/pulley, 338 cannulated sleeve locating supports.

The specific embodiment

The explanation of relevant embodiments of the invention is graphic with reference to what add, can be in order to the specific embodiment of implementing in order to illustration the present invention.And the direction term of being mentioned in the present invention, for example " on ", D score, " preceding ", " back ", " left side ", " right side ", " side " etc., only be direction with reference to annexed drawings.These direction terms are in order to explanation and understand the present invention, but not in order to restriction the present invention.In following examples, in different figure, same section is to represent with same numeral.

Desk with lowering or hoisting gear provided by the invention has single lifting column and two two kinds of patterns of lifting column.Fig. 1 roughly illustrates the overall structure of desk, and Fig. 2 to Fig. 3 further shows the desk of two lifting column patterns, and Fig. 4 to Fig. 8 further shows the desk of single lifting column pattern, and Fig. 9 to Figure 12 shows the fit structure of local detail.

With reference to (a) among Fig. 1 figure (b) figure.Shown in (a) figure, desk comprises desktop D1, seat plinth D2, lifting column D3, desktop load trailing arm D4 and solid shape carriage D7; Lowering or hoisting gear comprises elevating mechanism and transmission mechanism; Elevating mechanism comprises one or two lifting column D3, has post chamber connecting plate D5 between two lifting column D3, and also have a plinth connecting plate D6 between the seat plinth D2 this moment.

Shown in (b) figure among Fig. 1, each lifting column D3 comprises mutually nested first order post chamber 31, post chamber, the second level 32 and third level post chamber 33,

post chamber

31,32 and 33 cross section are rectangle, rectangle post chamber respectively by positive and negative two relative [shape cavity 31L/31R, 32L/32R, 33L/33R by the lifting pulley guide rail in the chamber 314,324 with 334 with riveted joint, screw is connected or butt welding forms.Lower end in the first order post chamber 31 is provided with load crossbeam 312.Be respectively equipped with on two walls of post chamber, the second level 32 Lower Halves, one side, following two parts pulley is installed recess 326u3 and 326d3, wherein the top pulley is installed recess 326u3 and is provided with one group at least, a pulley chamber 326u/326d is fixed in each recess 326u3/326d3 outside respectively, pulley chamber cavity can become the semiclosed rectangular case of single face (as: 326a/326ua/326da) two sides (as: 326u/326d) or three (as: 326u '/326d ') sealing (to describe imprecise according to the sheet metal thickness cutting and bending, see and connect), by welding, screw or riveted and fixed be 32 top sheave recess 326u3/326d3 relevant positions in post chamber, the second level, or also can pass through machine cuts machine-shaping (as 326b/326ub/326db) back with screw by thicker material, rivet or be weldingly fixed on 32 top sheave recess 326u3/326d3 relevant positions in post chamber, the second level, cavity can be that component is opened up and down, as Figure 10 (B), also can organize one up and down, as Figure 10 (A); Pulley chamber 326u/326d (comprising 326a/326b, 326ua/326ub, 326da/326db) cavity also is provided with the pulley consistent with post chamber upper notch with post chamber upper notch 326u3/326d3 opposite position recess 326u4/326d4 is installed; And be provided with location pulley yoke 325 and external lever bullet bearing up pulley frame 327 in the opposite side position, post chamber relative with this post chamber assembly pulley recess 326u3.On two walls of third level post chamber 33 Lower Halves, one side, also be respectively equipped with upper and lower two parts pulley recess 331u and 331d are installed, wherein top 331u is provided with one group of pulley at least recess is installed, on the relative post chamber opposite side two wall positions of this assembly pulley recess, be provided with location pulley recess 331b, and be provided with built-in lever bullet bearing up pulley frame 337 in the post chamber below the pulley recess 331b of this location; Between each

post chamber

31,32 and 33 with

pulley

3312,3372,3252 and 3262 and [the slide rail 314,324 in the shape cavity 31L/31R, 32L/32R, 33L/33R, with 334 be slidingly connected,

pulley

3312,3372,3252 and 3262 is arranged on the recess or wheel carrier in above-mentioned post chamber by

wheel shaft

3251,3261,3271,3311 and 3371 respectively, 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, and third level post chamber 33 is arranged in the post chamber, the second level 32 and does lifting based on post chamber, the second level 32 and slide; Opposite side is provided with location pulley yoke 325, pulley 3252 and external lever bullet bearing up pulley frame 327 and bullet bearing up pulley 3272 accordingly on post chamber, the second level wall between first order post chamber 31 and the post chamber, the second level 32; Also be provided with location pulley 3312 in the location pulley recess 331b on the third level post chamber wall opposite side between post chamber, the second level 32 and third level post chamber 33 accordingly and thereunder be provided with built-in lever bullet bearing up pulley frame 337 and bullet bearing up pulley 3372.

With reference to Fig. 5.When above-mentioned desk with lowering or hoisting gear has a lifting column S3, when being single lifting column lifting pattern, seat plinth S2 and desktop load trailing arm S4 also are independent, promptly all have only one.This moment, desk can pass through driven by shaking or motor-driven lifting, and described lifting column S3 comprises:

---the relevant position is provided with first screw putter 311 that adapts with first order post chamber in first order post chamber 31, the relevant position is provided with second screw putter 322 that adapts with post chamber, the second level in post chamber 32, the second level, and the relevant position is provided with the 3rd screw putter 333 that adapts with third level post chamber in third level post chamber 33; The top of wherein said the 3rd screw putter 333 is established a load bearing 3331u and is rotatably connected with 33 tops, third level post chamber, and the other end of this described the 3rd screw putter 333 is by the internal thread engagement of its external screw thread and second screw putter, 322 upper ends; The other end of described second screw putter 322 is by the internal thread engagement of its external screw thread and first screw putter, 311 upper ends; The lower end of described first screw putter 311 is fixed on the load crossbeam 312 of 31 bottoms, first order post chamber; The elevating movement that second screw putter 322 and the 3rd screw putter 333 all can stretch state by the rotation of screw rod; And

---below the load bearing 3331u on the 3rd screw putter 333 tops, establish a bevel gear 3332 of fixedlying connected with the 3rd screw putter 333; Can establish a screw rod location bearing 3333 for 3332 times at the 3rd screw putter bevel gear, this screw rod location bearing is fixedly installed on the 33 chamber walls of third level post chamber by a support;

When with the driven by shaking lifting:

---in lifting column desktop load trailing arm S4 or thereunder be provided with hand-operated lifting crank mechanism 335, this mechanism is made of the bearing block 3355 of crank 3354, kinematic link 3353a, kinematic link axle bolt 3353b, kinematic link telescopic 3352 and fixed conveyor connecting rod telescopic; Bearing block 3355 is fixedly connected on two walls in third level post chamber 33 by a crane span structure, kinematic link telescopic 3,352 one ends are the cannulated sleeve that both sides have two chutes, the other end is relative thinner solid cylinder, the solid cylinder of kinematic link telescopic 3352 is fixedlyed connected with a bevel gear 3351 after passing bearing block 3355 upper bearing (metal) endoporus, 3332 one-tenth an angle of 90 degrees engagements of 3351 of this bevel gears and the 3rd screw putter bevel gear, (also removable telescopic 3352a and two the detachable parts of solid cylinder 3352b of being with chute that are divided into of this kinematic link telescopic 3352 can tie by joint tongue or transmission between them and connect transmission.) end kinematic link 3353a that is provided with a transmission pilot pin 3353b is arranged in the kinematic link telescopic 3352, this kinematic link 3353a is can be along transversal stretching slippage in the chute length distance in kinematic link telescopic 3352 cannulated sleeves under the restriction of transmission pilot pin 3353b, but telescopic 3352 can only rotation synchronously under the drive of kinematic link pilot pin 3353b; The other end of kinematic link 3353a is provided with crank 3354, and is fixed in the desktop load trailing arm S4 or the below by a bearing block 336a or bearing fixing arm 336b;

When with the motor-driven lifting:

Referring to Fig. 8 (A) (B) (C), in first order post chamber 31, establish a load bearing S3113d on the lower end load crossbeam 312, this bearing is nested in the turbine S3119a, this turbine top is provided with the interface that joins with first order push rod 311 lower ends, on the chamber wall of 31 both sides, first order post chamber, respectively establish a load bearing block 31110, scroll bar S3119b and turbine S3119a engagement also are arranged on this diaxon bearing 31110, and the end of scroll bar S3119b links to each other with the rotor of the motor 3116 that is arranged on 31 outsides, first order post chamber;

Or also this mode can be arranged on 33 upper ends, third level post chamber, referring to Fig. 8 (D) (E) (F), a turbine S3119a of fixedlying connected with the 3rd screw putter 333 is established in bevel gear 3332 positions below the load bearing 3331u on the 3rd screw putter 333 tops, on the wall of chamber, 33 both sides, third level post chamber, respectively establish the bearing block 31110 that a tape spool holds, scroll bar S3119b and turbine S3119a engagement also are located on this diaxon bearing 31110, the end of scroll bar S3119b links to each other with the rotor of third level post chamber 33 motor 3116 outward, and the lower end of first screw putter 311 then directly is fixed on the load crossbeam 312.

The another way of motor-driven lifting:

Lifting column can be with the realization lifting synchronously by the motor-driven synchronizing wheel, and this transmission mechanism has two kinds of identical set-up modes of essence effect:

Referring to Fig. 7 (D) (E) (F), when this transmission mechanism was located at 33 upper ends, third level post chamber, first screw putter, 311 lower ends were fixed on the load crossbeam 312 of lower ends in the first order post chamber 31; And below the load bearing 3331u on the 3rd screw putter 333 tops, fixedly install a synchronizing wheel 3334; On the chamber wall of third level post chamber 33 1 sides, offer a punch holes with synchronizing wheel 3334 corresponding height positions, on put synchronous band S3114u and pass this hole the 3rd screw putter synchronizing wheel 3334 and the epitrochanterian driving synchronizing wheel S3115 that is arranged on the motor 3116 outside 33 1 sides of third level post chamber are linked to each other;

Referring to Fig. 7 (A) (B) (C) when this transmission mechanism is located at 31 lower ends, first order post chamber, fixedly connected itself and third level post chamber 33 upper end bolts are slotting by a bolt 3337 (referring to Fig. 3) in the 3rd screw putter 333 tops; Establish a load bearing S3113d in first order post chamber 31 on the load crossbeam 312 of lower end, this load bearing is nested in the synchronizing wheel 3112d, fixedlys connected with first screw putter, 311 lower ends in this synchronizing wheel top; On the chamber wall of first order post chamber 31 1 sides, offer a punch holes, pass this hole with S3114b synchronously the first screw putter synchronizing wheel 3112d is linked to each other with driving synchronizing wheel S3115 on the rotor that is arranged on first order post chamber 31 1 sides outside with synchronizing wheel 3112d corresponding height position;

Fig. 2 to Fig. 3 further shows the desk of two lifting column patterns.Shown in A figure among Fig. 2, the desk with lowering or hoisting gear of two lifting column patterns, its lifting column, seat plinth and lifting column desktop load trailing arm are the symmetrical both sides, desktop below of being located at, lifting column has two, links to each other by seat plinth carrier bar, post chamber connecting plate and synchronous band cover and the solid shape carriage of desktop between the two.

With reference to B among Fig. 2 and C figure, the desk of two lifting column patterns of driven by shaking lifting has:

---the relevant position is provided with first screw putter 311 that adapts with first order post chamber 31 in first order post chamber 31, the relevant position is provided with second screw putter 322 that adapts with post chamber, the second level 32 in post chamber 32, the second level, and the relevant position is provided with the 3rd screw putter 333 that adapts with third level post chamber 33 in third level post chamber 33; The top of wherein said the 3rd screw putter 333 is established a load bearing 3331u and is rotatably connected with 33 tops, third level post chamber, and the other end of this described the 3rd screw putter 333 is by the internal thread engagement of its external screw thread and second screw putter, 322 upper ends; The other end of described second screw putter 322 is by the internal thread engagement of its external screw thread and first screw putter, 311 upper ends; The lower end of described first screw putter 311 is fixed on the load crossbeam 312 of 31 bottoms, first order post chamber; The elevating movement that second screw putter 322 and the 3rd screw putter 333 all can stretch state by the rotation of screw rod;

---below the load bearing 3331u on the 3rd screw putter 333 tops of hand-operated lifting crank 3,354 one side lifting columns, establish a bevel gear 3332 of fixedlying connected with the 3rd screw putter 333; Can establish a screw rod location bearing 3333 for 3332 times at the 3rd screw putter 333 bevel gears, this screw rod location bearing 3333 is fixedly installed on the 33 chamber walls of third level post chamber by a support;

---in lifting column desktop load trailing arm D4 or thereunder be provided with hand-operated lifting crank mechanism 335, this mechanism has the bearing block 3355 of crank 3354, kinematic link 3353a, kinematic link telescopic 3352 and fixed conveyor connecting rod telescopic 3352 to constitute; Bearing block 3355 is fixed on two walls in third level post chamber 33 by a crane span structure, kinematic link telescopic 3,352 one ends are the cannulated sleeve 3352a that both sides have two chutes, the other end is relative thinner solid cylinder 3352b, the solid cylinder 3352b of kinematic link telescopic 3352a is fixedlyed connected with a bevel gear 3351 after passing bearing block 3355 upper bearing (metal) endoporus, 3332 one-tenth an angle of 90 degrees engagements of 3351 of this bevel gears and the 3rd screw putter bevel gear; The kinematic link 3353a that one end is provided with a transmission pilot pin 3353b is arranged in the kinematic link telescopic 3352, this kinematic link 3353a is can be along transversal stretching slippage in the chute length distance in cannulated sleeve under the restriction of transmission pilot pin 3353b, but kinematic link telescopic 3352 can only rotation synchronously under the drive of kinematic link pilot pin 3353b; The other end of kinematic link 3353a is provided with crank 3354, and by a bearing block 336a or bearing fixing arm 336b be fixed in the desktop load trailing arm D4 or below; And

---on the 3rd screw putter 333 in the third level lifting column chamber 33 that is provided with hi/local crank 3,354 one side lifting columns fixedly connected bevel gear 3332 above or below establish a synchronizing wheel 3334 of fixedlying connected with the 3rd screw putter 333, fixedly install too on the same position of the 3rd screw putter 333 in another third level lifting column chamber 33 that is symmetrical set one with highly consistent identical synchronizing wheel 3334, two synchronizing wheels 3334 of this synchronizing wheel 3334 between with synchronous band D3335 connection.

With reference to Fig. 3, except that hand elevating mechanism, other running part was basic identical when the desk of two lifting pillars adopted the motor-driven lifting:

---as Fig. 3 (A) (C) (D), the relevant position is provided with first screw putter 311 that adapts with first order post chamber 31 in first order post chamber 31, the relevant position is provided with second screw putter 322 that adapts with post chamber, the second level 32 in post chamber 32, the second level, and the relevant position is provided with the 3rd screw putter 333 that adapts with third level post chamber 33 in third level post chamber 33; The slotting fixed axis bolt 3337 of the top bolt of wherein said the 3rd screw putter 333 is fixedlyed connected with 33 tops, third level post chamber, and the other end of this described the 3rd screw putter 333 is by the internal thread engagement of its external screw thread and second screw putter, 322 upper ends; The other end of described second screw putter 322 is by the internal thread engagement of its external screw thread and first screw putter, 311 upper ends; The other end of described first screw putter 311 (lower end) is fixed on the interior synchronizing wheel 3112s of lifting column first order post chamber 31 lower end seat plinth, and synchronizing wheel 3112s is arranged on the load crossbeam 312 by load bearings D 3113d; The elevating movement that second screw putter 322 and the 3rd screw putter 333 all can stretch state by the rotation of screw rod; And

---(C) (D) lifting column first order post chamber 31 and seat plinth D2 are vertical is connected and is symmetrical set present plinth connecting plate D6 both sides as Fig. 3 (A), the load crossbeam 312 of 31 lower ends, first order post chamber is provided with load bearings D 3113d, this two symmetrical load bearings D 3113d respectively is nested in the identical synchronizing wheel 3112s, synchronizing wheel 3112s top links to each other with one-level push rod 311 lower ends, be with d3114a through the continuous two symmetrical synchronizing wheel 3112s of a seat plinth connecting plate D6 synchronously, the motor 3116 of band synchronizing wheel D3115 is located at a plinth connecting plate D6 upward and by two pulley tightener D3117a makes motor drum in-phase D3115 agree with being with d3114a synchronously; Or this mode also can be provided with the motor 3116 of above-mentioned band synchronizing wheel D3115 the both sides, front and back that present plinth D2 installs first order lifting column 31 positions, synchromesh gear 3112d on the load bearings D 3113d of 311 lower ends, first order post chamber in the installation motor 3,116 one side seat plinth D2 is made as the synchronizing wheel of double-layer integrally, when band d3114a connects the synchronizing wheel 3112s of 31 lower ends, left-right symmetry first order post chamber synchronously with one, be with d3114b to connect synchronously with another and be arranged on motor 3116 epitrochanterian synchronizing wheel D3115 in the 31 rear side seat plinth D2 of first order post chamber; Third level push rod 333 upper ends are then established a bolt 3337 and are located by connecting with chamber, both sides, 33 upper end, third level post chamber wall bolt is slotting.

With reference to Figure 12, the desk of single, double lifting column electric up-down pattern adopts the hand switch pattern also to have built-in telescopic safe electrically conducting manner.Load crossbeam 312 sides that seat plinth D2 installs in the position, lifting column chamber are provided with an electric conductor mounting bracket 31181 (this support also can adopt nonmetallic materials), and this electric conductor mounting bracket is provided with three electrode connection stake installing holes; The top in the third level lifting column chamber 33 directly over this electric conductor mounting bracket 31181 is provided with a nonmetal spacer 31183, on the nonmetal spacer 31183 and under electric conductor mounting bracket 31181 relative positions be provided with three electrode connection stake installing holes equally; Telescopic electric conductor 31182 is made of telescopic antenna or spring, in the electrode connection stake installing hole on the nonmetal spacer 31183 above two ends are separately fixed at and the electric conductor mounting bracket 31181 of below, be provided with insulation sleeve and insulation spacer 31186 in the electrode connection stake installing hole of lower end electric conductor metal mounting bracket 31181 during installation; The telescopic electric conductor 31182 outer flexible insulating sheath 31184u/31184d of nestable formula that are provided with, the flexible insulating sheath 31184u/31184d of nestable formula is inside and outside two-layer nestable alternately, the length of two insulation sleeves is about about 55% of electric conductor 31182 extension limit length, on the electric conductor mounting bracket 31181 below the end of ectonexine insulation sleeve 31184u/31184d is separately fixed at and on the nonmetal spacer 31183 of top, nonmetal spacer 31183 drives with its fixing relative another layer insulating sheath of insulating sheath 31184u 31184d when rising with third level post chamber 33 and does lifting slippage in opposite directions; The importing of power supply and leading-out terminal 31185 are connected in the electrode stake at two ends up and down.

With reference to Fig. 4, Fig. 5 and Fig. 6, the present invention's " single-column same table " also is provided with rack-and-pinion desktop dynamic equilibrium mechanism, this mechanism is made of flexible tooth bar group and synchromesh gear group S8a, flexible tooth bar group is that the toothed rack S8a1 bar shaped square column S8a2 applying slip identical with another root thickness is provided with, and the synchromesh gear group is that circular shaft S8a4 two ends respectively fixedly install an identical gear S8a3; Flexible tooth bar group be about two groups arranged side by side, be symmetricly set on the both sides of the single lifting column S3 in desktop below respectively, dynamically connect control with the synchromesh gear group between the two, the two ends of flexible tooth bar group are the engaging lug S8b6 on Connection Block plinth S2 and the table top with bearer respectively; The tooth bar S8a1 and the bar shaped square column S8a2 slip bond end of two flexible tooth bar groups are respectively established a pair of slippage spacer S8a5/S8a6, the end of the spacer S8a5 of two band synchronous gear shaft installing holes is fixedly installed on bar shaped square column S8a2 one end both sides respectively, two synchromesh gears (axle S8a4 two ends) be installed in the synchromesh gear installing hole of spacer S8a5 and respectively engagement be arranged on bar shaped square column S8a2 and slide on the tooth bar S8a1 of two symmetries of overlap joint the rearward position on the present plinth both sides of the lower end hinged securement of two bar shaped square column S8a2; The end of the spacer S8a6 of another group band stay hook is separately fixed at the both sides of tooth bar S8a1 slip bond end, the other end of this spacer S8a6 then slides and hooks bar shaped square column S8a2, and the other end (upper end) of the tooth bar S8a1 of two symmetries is articulated in respectively on the engaging lug S8b6 of table top with bearer of front side, single lifting column S3 both sides desktops below; Two tooth bar S8a1 and bar shaped square column S8a2 can the synchronously level and smooth telescopic movings of symmetry.

With reference to Fig. 6, " single-column same table " also is provided with diagonal brace rod-type desktop dynamic equilibrium mechanism, rear side in single lifting column first order lifting column chamber 31 fixedly installs the vertical stability column that (S8b3a) or two (S8b3b) exists side by side, the lower end of this stability column is fixed on the rear side of first order lifting column 31 by a stability column lower carriage S8b4a/S8b4b, the upper end is fixed on the upper end of first order lifting column 31 by another stability column upper bracket S8b5a/S8b5b, establish on the stability column S8b3a/S8b3b one can be on vertical stability column S8b3a/S8b3b the vertical stability column slippage cover of the hound of slippage S8b2a (twin columns then use the vertical stability column slippage cover of the fixing two-tube hound of existing side by side S8b2b) up and down, when desktop is reduced to when minimum, slippage cover S8b2a/S8b2b is in vertical stability column S8b3a/S8b3b lower end, the lower end of two symmetrical hound S8b1a/S8b1b is connected in the left and right sides of the vertical stability column slippage cover of hound S8b2a/S8b2b, the angled respectively left-right symmetry of the other end of this hound is connected on the desktop S1u bottom bracket engaging lug S8b6, and when lifting column S3 rose, the vertical stability column slippage cover of hound S8b2a/S8b2b rose along vertical stability column S8b3a/S8b3b slippage simultaneously with hound S8b1a/S8b1b; Hound can be single (S8b1a) is symmetricly set in lifting column S3 both sides under the desktop S 1u, also can adopt V-arrangement group (S8b1b) to be symmetricly set in lifting column S3 both sides under the desktop S1u.

Referring to Fig. 2,5,6,11 described desks with single (two) lifting column, also set up less important relatively establishing function, 33 top rear sides are established a desk lamp, computer display establishing mounting bracket D (S) 11 in lifting column third level post chamber, establishing support D (S) 11 is fixed on third level post chamber 33 upper end rear sides, also can be installed on the encorbelmenting of desktop load trailing arm D (S) 4 third level post chambeies 33 rear sides; The establishing support is overlooked and is V-arrangement or Y shape, V-arrangement of choosing or Y shape are pitched a terminal side and are provided with Desk lamp support inserting column installing hole, can peg graft for commercially available establishing desk lamp, opposite side is provided with the display/panel bracket mounting socket, display screen is not before interface forms unified standard, will be according to its different model otherwise designed same table with scalable display screen special stand, the establishing support D (S) 11 of two lifting column same table also can directly prolong the D that encorbelments (S) 4 of both sides desktop load trailing arm D (S) 4 third level post chambeies 33 rear sides, and be provided with and jack be installed thereon, constitute the left and right sides single-column arranged side by side establishing support of encorbelmenting and see D (S) 11b of Figure 11.

In addition, the application's desk also can have the desktop angle regulator, with reference to D12 among Fig. 3, be used to regulate the desktop angle of inclination, before being embodied in, it in continuous patent (200710038315) description has been arranged, therefore those skilled in the art can will not give unnecessary details with reference to preceding continuous patent or other existing techniques in realizing fully.

Below only be concrete exemplary applications of the present invention, protection scope of the present invention is not constituted any limitation.In addition to the implementation, the present invention can also have other embodiment.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop within the present invention's scope required for protection.

Claims

1. desk with lowering or hoisting gear is characterized in that: described desk comprises desktop, seat plinth, lowering or hoisting gear, desktop load trailing arm and solid shape carriage; 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, the cross section in post chamber is a rectangle, this rectangle post chamber by positive and negative two relative [the shape cavity by the lifting pulley guide rail in the chamber with riveted joint, screw connection, butt welding or be made of one piece; Lower end in first order post chamber is provided with the load crossbeam; Be respectively equipped with on two walls of post chamber, second level Lower Half one side, following two parts pulley is installed recess, wherein the top pulley is installed recess and is provided with one group at least, a pulley chamber is fixed in each recess outside respectively, pulley chamber cavity can become single face according to the sheet metal thickness cutting and bending, the semiclosed rectangular case that two sides or three side sealing close, by welding, screw or rivet are fixed on top sheave recess relevant position, post chamber, the second level, or also can thicker material by after the machine cuts machine-shaping with screw, rivet or be weldingly fixed in top sheave recess relevant position, post chamber, the second level, cavity component is up and down opened, and also can organize one up and down; Pulley chamber, post chamber cavity also is provided with the pulley consistent with post chamber upper notch with post chamber upper notch opposite position recess is installed; And be provided with location pulley yoke and external lever bullet bearing up pulley frame in the opposite side position, post chamber relative with this post chamber assembly pulley recess; On two walls of third level post chamber Lower Half one side, also be respectively equipped with upper and lower two parts pulley recess is installed, wherein top is provided with one group of pulley at least recess is installed, on the relative post chamber opposite side two wall positions of this assembly pulley recess, be provided with location pulley recess, and be provided with built-in lever bullet bearing up pulley frame in the post chamber below this location pulley recess; Be slidingly connected with pulley and slide rail between each post chamber, pulley is arranged on the recess or wheel carrier in above-mentioned post chamber by wheel shaft, 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; Opposite side is provided with location pulley yoke, pulley and external lever bullet bearing up pulley frame and bullet bearing up pulley accordingly on post chamber, the second level wall between first order post chamber and the post chamber, the second level; Also be provided with the location pulley in the location pulley recess on the third level post chamber wall opposite side between post chamber, the second level and third level post chamber accordingly and thereunder be provided with built-in lever bullet bearing up pulley frame and the bullet bearing up pulley.

2. the desk with lowering or hoisting gear according to claim 1 is characterized in that: lifting column, seat plinth and the desktop load trailing arm of described desktop below is independent, and lifting column only has one, and lifting column passes through the driven by shaking lifting,

---in lifting column desktop load trailing arm or thereunder be provided with hand-operated lifting crank mechanism, this mechanism is made of the bearing block of crank, kinematic link, kinematic link telescopic and fixed conveyor connecting rod telescopic; Bearing block is fixedly connected on two walls in third level post chamber by a crane span structure, kinematic link telescopic one end is the cannulated sleeve that both sides have two chutes, the other end is relative thinner solid cylinder, this kinematic link telescopic and its solid cylinder are one-body molded or be two detachable parts, when being two detachable parts, be to tie by joint tongue or transmission to connect transmission, the solid cylinder of kinematic link telescopic is fixedlyed connected with a bevel gear after passing bearing block upper bearing (metal) endoporus, and this bevel gear then becomes an angle of 90 degrees engagement with the 3rd screw putter bevel gear; The kinematic link that one end is provided with a transmission pilot pin is arranged in the kinematic link telescopic, this kinematic link is can be along transversal stretching slippage in the chute length distance in cannulated sleeve under the restriction of transmission pilot pin, but telescopic can only rotation synchronously under the drive of kinematic link pilot pin; The other end of kinematic link is provided with crank, and is fixed in the desktop load trailing arm or the below by an axle sleeve, bearing block or bearing fixing arm.

3. according to claim 1,2 described desks with lowering or hoisting gear, it is characterized in that: lifting column, seat plinth and the desktop load trailing arm of described desktop below are independent, lifting column only has one, it is characterized in that, lifting column is realized lifting by the motor driving scroll turbine, and this transmission mechanism has two kinds of set-up modes that the essence effect is identical:

---when this transmission mechanism was located at upper end, third level post chamber, the first screw putter lower end was fixed on the load crossbeam of lower end in the first order post chamber; And below the load bearing on the 3rd screw putter top, fixedly install a turbine; Respectively establish the bearing block that a tape spool holds with turbine corresponding height position on the chamber wall of both sides, third level post chamber, scroll bar and turbine engagement also are arranged on this diaxon bearing, and an end of scroll bar links to each other with the rotor of the motor that is arranged on the outside, third level post chamber;

---when this transmission mechanism was located at lower end, first order post chamber, the 3rd screw putter top was inserted it by a bolt and is fixedlyed connected with upper end, third level post chamber bolt; Establish a load bearing in first order post chamber on the load crossbeam of lower end, this bearing is nested in the turbine, fixedlys connected with the first screw putter lower end in the turbine top; Respectively establish the bearing block that a tape spool holds with turbine corresponding height position on the chamber wall of both sides, first order post chamber, scroll bar and turbine engagement also are arranged on this diaxon bearing, and an end of scroll bar links to each other with the rotor of the motor that is arranged on the outside, first order post chamber.

4. the desk with lowering or hoisting gear according to claim 3 can adopt synchronizing wheel to be with the kind of drive synchronously, it is characterized in that lifting column is with the realization lifting synchronously by the motor-driven synchronizing wheel, and this transmission mechanism has two kinds of set-up modes that the essence effect is identical:

---when this transmission mechanism was located at upper end, third level post chamber, the first screw putter lower end was fixed on the load crossbeam of lower end in the first order post chamber; And below the load bearing on the 3rd screw putter top, fixedly install a synchronizing wheel; Offer a punch holes with synchronizing wheel corresponding height position on the chamber wall of third level post chamber one side, synchronously band passes this hole the 3rd screw putter synchronizing wheel and the driving synchronizing wheel that is arranged on the rotor outside one side of third level post chamber is linked to each other;

---when this transmission mechanism was located at lower end, first order post chamber, the 3rd screw putter top was inserted it by a bolt and is fixedlyed connected with upper end, third level post chamber bolt; Establish a load bearing in first order post chamber on the load crossbeam of lower end, this bearing is nested in the synchronizing wheel, fixedlys connected with the first screw putter lower end in the synchronizing wheel top; Offer a punch holes with synchronizing wheel corresponding height position on the chamber wall of first order post chamber one side, synchronously band passes this hole the first screw putter synchronizing wheel and the driving synchronizing wheel that is arranged on the rotor outside one side of first order post chamber is linked to each other.

5. the desk with lowering or hoisting gear according to claim 1, its lifting column, seat plinth and lifting column desktop load trailing arm are left-right symmetry and are located at both sides, desktop below, lifting column has two, link to each other by seat plinth carrier bar, post chamber connecting plate, synchronous band cover and the solid shape carriage of desktop between the two, and, it is characterized in that with the driven by shaking lifting:

---the relevant position is provided with first screw putter that adapts with first order post chamber in first order post chamber, the relevant position is provided with second screw putter that adapts with post chamber, the second level in post chamber, the second level, and the relevant position is provided with the 3rd screw putter that adapts with third level post chamber in third level post chamber; The top of wherein said the 3rd screw putter is established a load bearing and is rotatably connected with top, third level post chamber, and the other end of this described the 3rd screw putter is by the internal thread engagement of its external screw thread and second screw putter upper end; The other end of described second screw putter is by the internal thread engagement of its external screw thread and first screw putter upper end; The other end of described first screw putter (lower end) is fixed on the load crossbeam of bottom, first order post chamber; The elevating movement that second screw putter and the 3rd screw putter all can stretch state by the rotation of screw rod;

---on the 3rd screw putter in being provided with the third level lifting column chamber of hi/local crank one side fixedly connected bevel gear above or below establish a synchronizing wheel of fixedlying connected with the 3rd screw putter, fixedly install too on the same position of the 3rd screw putter in the third level lifting column chamber of another lifting column that is symmetrical set one with the identical synchronizing wheel of this synchromesh gear height unanimity, connect with synchronous band between two synchronizing wheels.

6. according to claim 1,5 described desks with lowering or hoisting gear, it is characterized in that: lifting column, seat plinth and lifting column desktop load trailing arm are the symmetrical both sides, desktop below of being located at, lifting column has two, link to each other by seat plinth carrier bar, post chamber connecting plate, synchronous band cover and the solid shape carriage of desktop between the two, lifting column passes through the motor-driven lifting, and

7. according to claim 3,4,6 described desks with lowering or hoisting gear, it is characterized in that: the load crossbeam side that the seat plinth is installed in the position, lifting column chamber is provided with an electric conductor mounting bracket (this support also can adopt nonmetallic materials), and the electric conductor mounting bracket is provided with three electrode connection stake installing holes; The top in the third level lifting column chamber directly over this electric conductor mounting bracket is provided with a nonmetal spacer, on the nonmetal spacer and under electric conductor mounting bracket relative position be provided with three electrode connection stake installing holes equally; Telescopic electric conductor is made of telescopic antenna or spring, in the electrode connection stake installing hole on the nonmetal spacer above two ends are separately fixed at and the electric conductor mounting bracket of below, be provided with insulation sleeve and insulation spacer in the electrode connection stake installing hole of lower end electric conductor metal mounting bracket; Telescopic electric conductor is provided with flexible insulating sheath outward, insulating sheath is inside and outside two-layer nestable alternately, the length of two insulation sleeves is about about 55% of electric conductor extension limit length, one end of ectonexine insulation sleeve is separately fixed on the electric conductor mounting bracket of below and on the nonmetal spacer of top, and nonmetal spacer drives and its relative another layer insulating sheath of insulating sheath lifting slippage of fixing during with the lifting column lifting; The importing of power supply and leading-out terminal are connected in the electrode stake at two ends up and down.

8. according to claim 2,3,4 described desks with lowering or hoisting gear, it is characterized in that: described desktop stabilizing mechanism is made of flexible tooth bar group and synchromesh gear group, flexible tooth bar group is that the toothed rack bar shaped square column applying slip identical with another root thickness is provided with, and the synchromesh gear group is that circular shaft two ends respectively fixedly install an identical gear; Flexible tooth bar be about two groups arranged side by side, be symmetricly set on the both sides of the single lifting column in desktop below respectively, connect with the synchromesh gear group between the two and dynamically control, the two ends of flexible tooth bar group are the engaging lug on Connection Block plinth and the table top with bearer respectively; The tooth bar and the bar shaped square column slip bond end of two flexible tooth bar groups are respectively established a pair of slippage spacer, one end of the spacer of two band synchronous gear shaft installing holes is fixedly installed on bar shaped square column one end both sides respectively, two synchromesh gears are installed in and mesh on the tooth bar that is arranged on two symmetries that overlap with the slip of bar shaped square column the rearward position on the present plinth both sides of the lower end hinged securement of two bar shaped square columns in the synchromesh gear installing hole respectively; One end of the spacer of another group band stay hook is separately fixed at the both sides of tooth bar slip bond end, the other end of this spacer then slides and hooks the bar shaped square column, the other end of the tooth bar of two symmetries (on) be articulated in respectively on the engaging lug of table top with bearer of front side, single lifting column both sides desktops below; Two tooth bars and bar shaped square column can the synchronously level and smooth telescopic movings of symmetry.

9. the desk with lowering or hoisting gear according to claim 8, it is characterized in that: the rear side in single lifting column first order lifting column chamber is set with one or two vertical stability column of existing side by side, the lower end of stability column is fixed on the rear side of first order lifting column by a reference column lower carriage, the upper end is fixed on the upper end of first order lifting column by another stability column upper bracket, establish on the reference column one can be on vertical stability column the vertical stability column slippage of the hound cover (twin columns then use the fixing two-tube slippage cover of existing side by side) of slippage up and down, when desktop is reduced to when minimum, the slippage cover is in vertical stability column lower end, the lower end of two symmetrical hounds is connected in the left and right sides of slippage cover, the angled respectively left-right symmetry of the other end of hound is connected on the desktop bottom bracket engaging lug, when lifting column rose, the slippage cover rose along vertical stability column slippage simultaneously with hound; Hound can be the single lifting column both sides under the desktop that are symmetricly set in, and also can adopt the V-arrangement group to be symmetricly set in lifting column both sides under the desktop.

10. according to claim 1,2,3,4,5,6 described desks with lowering or hoisting gear, it is characterized in that: rear side is established a desk lamp, computer display establishing mounting bracket on top, lifting column third level post chamber, mounting bracket is fixed on third level post chamber upper end rear side, also can be installed on the encorbelmenting of desktop load trailing arm third level post chamber rear side; The establishing support is overlooked and is V-arrangement, the V-arrangement of choosing is pitched a terminal side and is provided with Desk lamp support inserting column installing hole, peg graft for commercially available establishing desk lamp, opposite side is provided with the display/panel bracket mounting socket, display screen will not design same table with telescopic display screen special stand according to different model before interface forms unified standard, the establishing support of two lifting column same table also can directly prolong encorbelmenting of both sides desktop load trailing arm third level post chamber rear side, and be provided with and jack be installed thereon, constitute the left and right sides single-column arranged side by side establishing support of encorbelmenting.