CN207687633U - Desktop holder - Google Patents

Abstract

The utility model discloses a kind of desktop holders,Including pedestal,Arm mechanism and mounting apparatus,What the pedestal can be dismantled is fixedly installed on desktop,Arm mechanism includes arm front connector,Arm rear connectors,Upper support,Lower supporting and regulating device and resilient supporting unit,The arm rear connectors are mounted on the base,Mounting apparatus is installed in arm front connector,Arm front connector,Upper support,Hinge connections form parallelogram sturcutre one by one for arm rear connectors and lower support,In regulating device,Lower both ends are hinged and connected with upper support and lower support respectively,Resilient supporting unit both ends are connected with regulating device and upper support respectively,The resilient supporting unit length being capable of elastic telescopic,The utility model is easy to adjust laborsaving,The weight range for hanging electronic equipment is big,Electronic equipment mounting height and pitch angle position are stablized,Pallet can ensure that horizontality,Convenient for adjusting,Using comfortable.

Description

Desktop holder

Technical field

The utility model is related to a kind of holder, more particularly to a kind of desktop holder.

Background technology

Electronic equipment erection scaffolding, such as display bracket, TV bracket, projector mount, it is many at present electric Sub- equipment is mounted on by mounting bracket on the workbench such as desktop, is grasped to the electronic equipment on holder convenient for staff Make, the adjusting of common desktop holder electronic product height is all to be adjusted by arms swing up downward or pass through pad by sliding sleeve The mode that piece clamps connect realization height with column and adjusts, and it is inconvenient to adjust, and stability is poor, the side adjusted by arms swing Formula, general regulating mechanism are the bolt being mounted on the base, and drive the lift nut being spirally connected therewith by bolt rotation, in turn Change the triangle length of side and angle that bolt, elastic component and swinging arm side are formed, realizes the stable position of different height, it should Kind of regulating mechanism load-bearing range is small, and range of weighing is generally 2-9kg, can raise up automatically when no electronic equipment is hung, when adjusting It needs to expend compared with great strength, adjusting has some setbacks.

Utility model content

In order to make up the above deficiency, the utility model provides a kind of desktop holder, which can realize The stable regulation of the various states of electronic equipment, easy to operation, flexible adjustment.

The utility model in order to solve its technical problem used by technical solution be：A kind of desktop holder, including bottom Seat, arm mechanism and mounting apparatus, what the pedestal can be dismantled is fixedly installed on desktop, and arm mechanism includes arm Front connector, arm rear connectors, upper support and lower support regulating device and resilient supporting unit, the arm rear connectors peace Loaded on pedestal, mounting apparatus is installed in arm front connector, arm front connector, upper support, arm rear connectors With it is lower support one by one hinge connections formed parallelogram sturcutre, regulating device upper/lower terminal respectively with it is upper support and lower support It is hinged and connected, resilient supporting unit both ends are connected with regulating device and upper support respectively, and the resilient supporting unit length can Elastic telescopic.

The regulating device includes holder, sliding block and adjusting bolt, the branch as a further improvement of the utility model, Frame upper/lower terminal is hinged and connected with last arm and lower arms respectively, and holder and arm rear connectors and arm front connector are flat Row setting, what sliding block can be moved along holder extending direction is positioned on holder, and adjusting bolt axial retention circumferencial direction can It is rotatably positioned on holder, adjusting bolt is spirally connected with sliding block, and the last arm is equipped with and adjusting bolt head position face Hollow-out parts.

Mounting apparatus includes column, rotary head, swelling device and driving machine as a further improvement of the utility model, Structure, column are installed in arm front connector, and column is equipped with end slipway, which forms at least one and open Mouth structure, what swelling device can slide is inserted in the end slipway of column, and swelling device is equipped with a convex block, the convex block edge Hatch frame stretches out on the outside of column on column end slipway side wall, and the convex block can be fixedly connected with rotary head, and rotary head is equipped with Mounting structure for installing display, driving mechanism driving swelling device are radially expanded on the inside of the end slipway pushed against in column Wall.

The swelling device includes an expansion sleeve and an expanding block, expansion sleeve as a further improvement of the utility model, In the axial slideway being inserted in column that can be slided, convex block is fixed on expansion sleeve lateral wall, is formed on the inside of expansion sleeve Bellmouth, expanding block are that can be more than swollen along expansion sleeve bullet in axial sliding, the big one end outer diameter of the expanding block diameter The small one end internal diameter of expansion set internal diameter, driving mechanism drive expanding block to be axially moved along expansion sleeve.

As a further improvement of the utility model, energy is respectively equipped on the expanding block lateral wall and expansion sleeve madial wall Enough intermeshing helicitic textures, driving mechanism are and the stop of expanding block circumferencial direction and the axial adjustment that can slide positioning What bar, adjustment bar axial retention and circumferencial direction can rotate is installed on column, and adjustment bar upper end be able to be stretched out on column End outside formation operation end.

The rotary head as a further improvement of the utility model, includes slide plate, flap, rotary head shell and elastic component, described Column lateral wall is equipped with upper at least one slideway extended longitudinally, is formed at least a piece of inserted sheet on slide plate, each inserted sheet be able to Enough corresponding slidings are inserted in each slideway on column side wall, and the convex block on swelling device can be fixedly connected with slide plate, sliding Plate is hinged and connected with what flap can be rotated around trunnion axis, is formed on rotary head shell and close is located in slide plate and flap is hingedly overlapped Gasket construction between position, the side wall opposite with slide plate and flap is connected respectively for the both ends of elastic component telescopic direction, elastic component The reverse elasticity torque for overcoming gravity torque thereon is provided to flap.

The slide plate is respectively formed U-shaped structure, the two U-shaped with flap opposite side as a further improvement of the utility model, The side wall of structure is hinged and connected by connector, and the rotary head shell is in long column construction, is inside formed with and is worn for connector Axis hole is respectively separated on the periphery wall at rotary head shell both ends to form that there are two lack circular aperture slots, two neighboring scarce circle The aperture slots opening direction of shape respectively with flap side wall and slide plate side wall face, slide plate and flap side wall difference corresponding inserted in In the aperture slots adjacent with rotary head shell both ends, gasket construction is formed between the adjacent aperture slots in rotary head shell both ends.

It is additionally provided with pallet, extension and clamping piece as a further improvement of the utility model, is to actually use direction Benchmark, the pallet are equipped with a slideway extended along its front-rear direction, and extension one end can be connected with column, and extension is another What one end can be slided is inserted in the slideway of pallet, and extension surface or pallet slideway madial wall are equipped with several first and block Button, clamping piece are installed on along slideway extending direction stop on pallet or on extension, and clamping piece is equipped with second and buckles, and second Buckle first can be fastened and connected with any one.

First buckle is rack structure as a further improvement of the utility model, and the second buckle is can be with tooth The latch of the arbitrary tooth socket engagement of structure, the pallet are equipped with the perforation of its vertical surface direction, and the perforation is just and pallet Connection on the inside of sliding way, clamping piece can perforates the positioning that slides axially along pallet, and first buckles and be fixedly installed on extension, It is additionally provided with an elastomer, elastomer both ends are respectively with clamping piece and pallet stationary positioned, and elastomer element is always to clamping piece direction The elastic holding force of rack direction movement.

It is additionally provided with fixed seat, pallet connector and arrestment mechanism, the fixation as a further improvement of the utility model, Seat one end can be fixedly installed on column, and there are the inclined surface of acute angle, connections with horizontal plane for the formation of the fixed seat other end Part one end can be installed on fixed seat other end side wall around the shaft of vertical fixed seat other end inclined surface rotation set angle On, the fixed seat other end and pallet connector stationary positioned, the extension can be fixedly installed in connector by arrestment mechanism On.

The advantageous effects of the utility model are：The arm mechanism of the utility model divides regulating device top and bottom It is not hinged with upper support and lower support so that upper support and it is lower support the support that regulating device is collectively formed, support strength is big, energy The weight of bigger is enough born, meanwhile, regulating device swings with upper support and lower support and carries out automated location adjusting, changes elasticity Support device position of the fulcrum, automatically achieves stress balance, and regulating device is avoided to bear torque so that regulating device saves when adjusting It is power, smooth, due to the formation of self equilibrium systems so that holder can all keep stable when installing the electronic equipment of arbitrary weight Location status, can also keep stable state, without raising up, increase and hang electronic equipment when being fitted without electronic equipment Weight range, height of the electronic equipment mounting device on column pass through tapered expansion set and expanding block composition swelling dress Set and positioned, avoid using gasket clamping by the way of position, after positioning rotary head stable position can be kept on column It does not glide, wear out failure will not occur for long-time service, be used to adjust the flap of electronic equipment pitch angle in rotary head, after adjusting Resilient support is carried out by elastic component, the bowing phenomena caused by display weight can be effectively avoided, also by being set on column The pallet that setting can stretch realizes the placement of corollary equipment, and is swung on inclined surface by it and realize WidFin, it is ensured that its Keep horizontality, use more comfortable.

Description of the drawings

Fig. 1 is the stereogram of the utility model；

Fig. 2 is the front view of the utility model；

Fig. 3 be in Fig. 2 C-C to sectional view；

Fig. 4 is the left view of the utility model；

Fig. 5 is sectional view along A-A in Fig. 4；

Fig. 6 is the rotary head exploded view of the utility model；

Fig. 7 is the rotary head front view of the utility model；

Fig. 8 is B-B direction sectional view in Fig. 7；

Fig. 9 is the pallet exploded view of the utility model；

Figure 10 is the pallet front view of the utility model；

D-D is to sectional view in Figure 11 Figure 10；

Figure 12 is the utility model pallet WidFin structural exploded view；

Figure 13 is the regulating device stereogram of the utility model.

Specific implementation mode

Embodiment：A kind of desktop holder 28, including pedestal 1, arm mechanism and mounting apparatus, 1 energy of the pedestal That enough dismantles is fixedly installed on desktop, arm mechanism include arm front connector 23, arm rear connectors 24, it is upper support 25, Lower support 26, regulating device and resilient supporting unit 27, the arm rear connectors 24 are installed on pedestal 1, equipment installation dress It sets and is installed in arm front connector 23, arm front connector 23, upper support 25, arm rear connectors 24 and lower support 26 are one by one Hinge connections form parallelogram sturcutre, and regulating device upper/lower terminal is hinged and connected with upper support 25 and lower support 26 respectively, 27 both ends of resilient supporting unit are connected with regulating device and upper support 25 respectively, and 27 length of the resilient supporting unit being capable of elasticity It is flexible.

In use, on the table by the installation of pedestal 1, electronic equipment being mounted on mounting apparatus, is connected after arm Part 24 can be fixedly mounted on pedestal 1, can also being installed on pedestal 1 of can rotating of axial retention circumferencial direction, pedestal 1 can To be installed on desktop using connectors such as screws, can also be installed on desktop by the way of clamping, mounting apparatus Can be fixedly mounted in arm front connector 23, can also axial retention circumferencial direction can rotate be installed on arm before connect On fitting 23, wherein arm front connector 23, upper support 25, arm rear connectors 24 and lower support 26 form parallelogram Structure, (before parallelogram sturcutre ensures, rear connectors movement angle is consistent) arm rear connectors 24 form whole fixed branch Support realizes 23 lifting of arm front connector by upper support 25 and 26 parallel swings of lower support, the position of forearm connector by The elastic force of resilient supporting unit 27 gives support positioning, and resilient supporting unit 27 is in upper support 25 and 26 swing process of lower support It swings and changes length jointly with it, form a stable triangular support structure with regulating device and upper support 25 always, The fulcrum of resilient supporting unit 27 is the hinge joint of itself and regulating device, which swings with upper and lower support 26 and follow generation Variation, the torque born also change, and follow upper and lower support 26 to swing with resilient supporting unit 27 and elastic telescopic occurs The elastic force of generation forms balance, entire support construction can auto-changing fulcrum form balance, no matter on forearm connector The article of big weight is installed, position of the fulcrum can be automatically adjusted and reach balance, it is big to bear weight range, while regulating device Top and bottom connect it with upper support 25 and lower support 26 respectively and stress are passed to upper support 25 and lower support 26, by upper branch Support is collectively formed in support 25 and lower support 26, and the torque born thereon is decomposed upper support 25 and lower support 26 by regulating device On, its own is not subject to torsional moment, therefore regulating device only plays the role of adjusting 27 length of resilient supporting unit, without holding It is acted on, is hardly damaged by torque.

The regulating device includes holder 28, sliding block 29 and adjusting bolt 30,28 upper/lower terminal of the holder respectively with it is upper Arm and lower arms are hinged and connected, and holder 28 is arranged in parallel with arm rear connectors 24 and arm front connector 23, sliding block 29 What can be moved along 28 extending direction of holder is positioned on holder 28, and 30 axial retention circumferencial direction of adjusting bolt can rotate fixed On holder 28, adjusting bolt 30 is spirally connected with sliding block 29, and the last arm is equipped with and 30 head position face of adjusting bolt Hollow-out parts, by rotate adjusting bolt 30 realize sliding block 29 slided on holder 28, come change regulating device with resilient support 27 hinge joint of device to regulating device and last arm hinge joint distance, and then change support triangle one fixed edge of shape side It is long, and then 27 stroke of resilient supporting unit when change last arm and assistant's arm swing set angle, that is, change support force, in turn Adapt to the electronic equipment of different weight stablizes support, due to last arm and lower arms in different pivot angles position of the fulcrum with covariant Change automatically achieves balance, only 29 own wt of customer service sliding block when sliding block 29 is adjusted in adjusting bolt 30, and when rotation easily saves Power.

Mounting apparatus includes column 2, rotary head, swelling device and driving mechanism, and column 2 is installed on arm front connector On 23, column 2 is equipped with end slipway, which forms at least one hatch frame, and swelling device can be slided Dynamic is inserted in the end slipway of column 2, and swelling device is equipped with a convex block 3, and the convex block 3 is along 2 end slipway side wall of column Upper hatch frame stretches out 2 outside of column, and the convex block 3 can be fixedly connected with rotary head, and rotary head is equipped with for installing display Mounting structure, driving mechanism driving swelling device be radially expanded push against column 2 in end slipway madial wall, in use, will Pedestal 1 is installed on the table, and display is mounted in rotary head, drives strainer expansion by driving mechanism, swelling is made to fill It sets lateral wall and forms huge frictional force tight against the axial slideway madial wall in column 2, swelling device is fixed fixed with column 2 at this time Position, that is, realize the stationary positioned of height of display, when needing to adjust height of display, need to only be driven by driving mechanism swollen Tight device is shunk, its lateral wall is made to unclamp the axial slideway in column 2, can drive tensioning by moving up and down display at this time Device slides up and down to realize that height of display is adjusted, and is again expanded swelling device by driving mechanism after adjusting, The utility model realizes height of display and quickly adjusts, and can keep stable position constant after adjusting, and its is easy to adjust, Entire regulating mechanism is hidden in 2 inside of column, and shape is succinct, beautiful, convenient for cleaning.

The swelling device includes an expansion sleeve 4 and an expanding block 5, and what expansion sleeve 4 can slide is inserted in column 2 In axial slideway, convex block 3 is fixed on 4 lateral wall of expansion sleeve, and 4 inside of expansion sleeve forms bellmouth, and expanding block 5 is being capable of edge Bullet, the big one end outer diameter of 5 diameter of the expanding block are more than in the small one end of 4 internal diameter of expansion sleeve expansion sleeve 4 in axial sliding Diameter, driving mechanism drive expanding block 5 to be axially moved along expansion sleeve 4, drive expanding block 5 axial along expansion sleeve 4 by driving mechanism Movement makes expansion sleeve 4 open by taper surface, and then the expansion that diameter extends out occurs for its outside, and the structure is easy to operation, structure Simply, expansion sleeve 4 is in stable condition after expanding, and expansion sleeve 4 may be used with the elastic construction along generatrix direction open seam, also may be used To use there are two the structure that semicircular ring is spliced, splicing seams can be that straight line stitches, or concave-convex curve seam or folding Linear slit, convex block 3 can be located in two semicircular rings, and entire convex block 3 is formed after splicing, can also be using elastic material in addition Expander made of material, driving mechanism is can be to the high pressure gas generating means of expander injection high pressure gas, or is to plug In with several sliding blocks 29 that can radially slide are set on the locating piece in 2 slideway of column, driven by driving mechanism each A sliding block 29 radially slides the slideway side wall in abutting column 2 along locating piece can also play swelling effect, and such is all ability Field technique personnel see the equivalent constructions that the art of this patent scheme is readily conceivable that.

Be respectively equipped on 4 madial wall of 5 lateral wall of the expanding block and expansion sleeve can intermeshing helicitic texture, driving Mechanism is and 5 circumferencial direction stop of expanding block and the axial adjustment bar 6 that can slide positioning to adjust 6 axial retention of bar and circumference What direction can rotate is installed on column 2, and 6 upper end of adjustment bar be able to stretch out formation operation end on the outside of 2 upper end of column, pass through Rotation adjustment bar 6 drives expanding block 5 to rotate, and then makes itself and 4 axially opposed sliding of expansion sleeve, realizes 4 swelling of expansion sleeve Function, thread engaging structure realizes that expanding block 5 and expansion sleeve 4 be axially moved can also be real by its swelling or unclamp while Existing expanding block 5 and 4 stationary positioned of expansion sleeve, it is simple in structure, it is easy to implement, the two relative position is stablized, and can also be cunning in addition 29 slide construction of block realizes driving by cylinder push-and-pull or rack and pinion mechanism drive etc..

The rotary head includes slide plate 7, flap 8, rotary head shell 9 and elastic component 10, and 2 lateral wall of the column is equipped with upper at least one The slideway that item extends longitudinally, is formed at least a piece of inserted sheet 11 on slide plate 7, each inserted sheet 11 be able to corresponding sliding be inserted in In each slideway on 2 side wall of column, the convex block 3 on swelling device can be fixedly connected with slide plate 7, and slide plate 7 and flap 8 can be around Trunnion axis rotation is hinged and connected, and is formed on rotary head shell 9 and close is located in slide plate 7 and flap 8 is hinged between lap position Gasket construction, the side wall opposite with slide plate 7 and flap 8 is connected respectively for the both ends of 10 telescopic direction of elastic component, and elastic component 10 is to turning Plate 8 provides the reverse elasticity torque for overcoming gravity torque thereon, in use, slide plate 7 is mounted on column 2, by electronic equipment On flap 8, flap 8 can rotate certain angle with slide plate 7 around articulated shaft and realize that display pitch angle adjusts work( Can, elastic component 10 overcomes the torque that display dead weight generates by elastic force, avoids the bowing phenomena for causing display so that aobvious Show that device is maintained at the pitch angle state regulated, elastic component 10 can be compression spring, or tension spring, 10 one end of elastic component can With with 9 stationary positioned of rotary head shell, the other end and 8 stationary positioned of flap, rotary head shell 9 is realized by clinging structure to be consolidated with slide plate 7 Positioning.

The slide plate 7 is respectively formed U-shaped structure with 8 opposite side of flap, and the side wall of the two U-shaped structure passes through connector (rivet Or bolt) be hinged and connected, the rotary head shell 9 is in long column construction, is inside formed with the axis hole 12 worn for connector, rotary head shell It is respectively separated to be formed there are two scarce circular aperture slots 13 on the periphery wall at 9 both ends, it is two neighboring to lack circular opening 13 opening direction of gap respectively with 7 side wall face of 8 side wall of flap and slide plate, slide plate 7 and 8 side wall of flap difference corresponding inserted in In the adjacent aperture slots 13 in 9 both ends of rotary head shell, gasket construction is formed between the adjacent aperture slots 13 in 9 both ends of rotary head shell, is led to That crosses that aperture slots 13 on rotary head shell 9 form slide plate 7 and 8 side wall of flap plugs space, for accommodating 8 side wall of slide plate 7 and flap, By partly forming the gasket construction between 8 side wall of slide plate 7 and flap between two neighboring aperture slots 13, among rotary head shell 9 Part forms the support between slide plate 7 and 8 two side of flap, without repeatedly installing multiple small parts, group when this kind of structure assembles Dress is convenient, saves cost, and slide plate 7 and 8 side wall of flap are hidden in the aperture slots 13 of rotary head shell 9, good appearance, when adjusting not Meeting clamp hand, is usually not easy dust stratification.

It is additionally provided with pallet 14, extension 15 and clamping piece 18, on the basis of actually using direction, the pallet 14 is equipped with One slideway extended along its front-rear direction, 15 one end of extension can be connected with column 2, and 15 other end of extension can slide It is inserted in the slideway of pallet 14,15 surface of extension or 14 slideway madial wall of pallet are equipped with several first and buckle 16, blocking Part 18 is installed on along slideway extending direction stop on pallet 14 or on extension 15, and clamping piece 18 is equipped with the second buckle 17, Second buckle 17 can be fastened and connected with any one the first buckle 16, and holder 28 in use, needs adjusting tray 14 When front and back position, it is only necessary to which operating clamping piece 18 makes thereon second to buckle 17 and 16 disengaging of the first buckle, pushes and pulls pallet at this time 14 can be realized extension 15 slides in the slideway of pallet 14, and then realizes that 14 front and back position of pallet is adjusted, after adjusting, Operation clamping piece 18 makes stacking button thereon with first buckle 16 and be fastened and connected the fixation of pallet 14 and extension 15 may be implemented Positioning, that is, realize the fixation of 14 position of pallet, which realizes the adjusting of 14 front and back position of pallet, makes convenient for staff With easy to use.

First buckle 16 is rack structure, and the second buckle 17 is the card that can be engaged with the arbitrary tooth socket of rack structure Tooth, the pallet 14 are equipped with the perforation of its vertical surface direction, which is just connected to on the inside of 14 sliding way of pallet, blocking Part 18 can perforate the positioning that slides axially along pallet 14, and the first buckle 16 is fixedly installed on extension 15, is additionally provided with a bullet Property body 19,19 both ends of elastomer respectively with 14 stationary positioned of clamping piece 18 and pallet, 19, elastomer always give 18 court of clamping piece The elastic holding force moved to rack direction is engaged with latch by rack and realizes being fastened and connected for the first and second buckle, passes through bullet Property 19 elastic force of body realize clamping piece 18 on latch stretch into always in the rack tooth socket on extension 15, in addition to use elastic component 10 Outer can also be that the structures such as bolt, bolt, withstanding tight block realize 18 positioning action of clamping piece, first and second be fastened and connected in addition Structure can also be that gear and rack engagement connection structure or C buckles are fastened and connected structure or hook structure with ball bumps Etc., this class formation is all the equivalent constructions that those skilled in the art are readily conceivable that according to this patent.

It is additionally provided with fixed seat 20, pallet connector 21 and arrestment mechanism 22,20 one end of the fixed seat can be fixedly mounted In on column 2,20 other end of fixed seat is formed with horizontal plane there are the inclined surface of acute angle, and connector one end can be around vertical The shaft rotation set angle of 20 other end inclined surface of fixed seat is installed on 20 other end side wall of fixed seat, arrestment mechanism 22 20 other end of fixed seat and 21 stationary positioned of pallet connector, the extension 15 can be fixedly installed on connector, be led to Toning puts one's child in a boarding nursery the left-right rotation on 20 inclined surface of fixed seat of disk connector 21, realizes that pallet 14 swings and then makes around trunnion axis Its left and right sides height changes, and keeps its holding horizontal, this is simple in structure, easy to adjust.

Claims (10)

1. a kind of desktop holder, it is characterized in that：Including pedestal (1), arm mechanism and mounting apparatus, the pedestal can Dismounting is fixedly installed on desktop, and arm mechanism includes arm front connector (23), arm rear connectors (24), upper support (25), lower support (26) regulating device and resilient supporting unit (27), the arm rear connectors are mounted on the base, equipment peace Assembling device is installed in arm front connector, and sequence is cut with scissors one by one for arm front connector, upper support, arm rear connectors and lower support It connects to form parallelogram sturcutre, regulating device upper/lower terminal is hinged and connected with upper support and lower support respectively, resilient support dress It sets both ends to be respectively connected with regulating device and upper support, the resilient supporting unit length being capable of elastic telescopic.

2. desktop holder according to claim 1, it is characterized in that：The regulating device includes holder (28), sliding block (29) it is hinged and connected respectively with last arm and lower arms with adjusting bolt (30), the holder upper/lower terminal, after holder and arm Connector and arm front connector are arranged in parallel, and what sliding block can be moved along holder extending direction is positioned on holder, adjust Bolt axial retention circumferencial direction can be rotatably positioned on holder, and adjusting bolt is spirally connected with sliding block, and the last arm is equipped with With the hollow-out parts of adjusting bolt head position face.

3. desktop holder according to claim 1, it is characterized in that：Mounting apparatus includes column (2), rotary head, swollen Tight device and driving mechanism, column are installed in arm front connector, and column is equipped with end slipway, the end slipway one side wall At least one hatch frame is formed, what swelling device can slide is inserted in the end slipway of column, and swelling device is equipped with One convex block (3), convex block hatch frame along column end slipway side wall stretch out on the outside of column, and the convex block can be solid with rotary head Fixed connection, rotary head are equipped with the mounting structure for installing display, and it is vertical that driving mechanism driving swelling device is radially expanded abutting End slipway madial wall in column.

4. desktop holder according to claim 3, it is characterized in that：The swelling device includes an expansion sleeve (4) and one Expanding block (5), what expansion sleeve can slide is inserted in the axial slideway in column, and convex block is fixed at expansion sleeve lateral wall On, form bellmouth on the inside of expansion sleeve, expanding block is can bullet, the expanding block diameter be big in axial sliding along expansion sleeve One end outer diameter be more than the small one end internal diameter of expansion sleeve internal diameter, driving mechanism drives expanding block to be axially moved along expansion sleeve.

5. desktop holder according to claim 4, it is characterized in that：On the expanding block lateral wall and expansion sleeve madial wall Be respectively equipped with can intermeshing helicitic texture, driving mechanism be with the stop of expanding block circumferencial direction and it is axial can slide it is fixed What the adjustment bar (6) of position, adjustment bar axial retention and circumferencial direction can rotate is installed on column, and adjustment bar upper end be able to Stretch out formation operation end on the outside of the upper end of the column.

6. desktop holder according to claim 3, it is characterized in that：The rotary head includes slide plate (7), flap (8), rotary head Shell (9) and elastic component (10), the column lateral wall are equipped with upper at least one slideway extended longitudinally, be formed on slide plate to Few a piece of inserted sheet (11), each inserted sheet corresponding be able to be slided and is inserted in each slideway on column side wall, on swelling device Convex block can be fixedly connected with slide plate, and slide plate is hinged and connected with what flap can be rotated around trunnion axis, be formed on rotary head shell tight It is close to be located in slide plate and flap is hinged gasket construction between lap position, the both ends of elastic component telescopic direction respectively with slide plate and The opposite side wall of flap is connected, and elastic component provides the reverse elasticity torque for overcoming gravity torque thereon to flap.

7. desktop holder according to claim 6, it is characterized in that：The slide plate is respectively formed U-shaped knot with flap opposite side The side wall of structure, the two U-shaped structure is hinged and connected by connector, and the rotary head shell is in long column construction, is inside formed with for even The axis hole (12) that fitting is worn is respectively separated on the periphery wall at rotary head shell both ends to form that there are two lack circular aperture slots (13), it is two neighboring lack circular aperture slots opening direction respectively with flap side wall and slide plate side wall face, slide plate and flap Side wall distinguishes corresponding inserted in the aperture slots adjacent with rotary head shell both ends, shape between the adjacent aperture slots in rotary head shell both ends At gasket construction.

8. desktop holder according to claim 3, it is characterized in that：It is additionally provided with pallet (14), extension (15) and blocking Part (18), on the basis of actually using direction, the pallet is equipped with a slideway extended along its front-rear direction, extension one end It can be connected with column, what the extension other end can slide is inserted in the slideway of pallet, extension surface or pallet slideway Madial wall be equipped with it is several first buckle (16), clamping piece along slideway extending direction stop be installed on pallet or extension On, clamping piece is equipped with the second buckle (17), and the second buckle first can be fastened and connected with any one.

9. desktop holder according to claim 8, it is characterized in that：First buckle is rack structure, the second buckle For the latch that can be engaged with the arbitrary tooth socket of rack structure, the pallet is equipped with the perforation of its vertical surface direction, this is worn Hole just be connected on the inside of pallet sliding way, clamping piece can perforate the positioning that slides axially along pallet, and first buckles fixed installation In on extension, being additionally provided with an elastomer (19), respectively with clamping piece and pallet stationary positioned, elastomer element begins at elastomer both ends The elastic holding force moved eventually towards rack direction to clamping piece.

10. desktop holder according to claim 8, it is characterized in that：It is additionally provided with fixed seat (20), pallet connector (21) With arrestment mechanism (22), described fixed seat one end can be fixedly installed on column, and the formation of the fixed seat other end is deposited with horizontal plane In the inclined surface of acute angle, connector one end can rotate set angle around the shaft of vertical fixed seat other end inclined surface It is installed on fixed seat other end side wall, arrestment mechanism can be described by the fixed seat other end and pallet connector stationary positioned Extension is fixedly installed on connector.