CN112450600B

CN112450600B - Caster telescopic mobile office table

Info

Publication number: CN112450600B
Application number: CN202011213916.7A
Authority: CN
Inventors: 郭守艳
Original assignee: Guangdong Junshi Intelligent Furniture Co ltd
Current assignee: Guangdong Junshi Intelligent Furniture Co ltd
Priority date: 2020-11-04
Filing date: 2020-11-04
Publication date: 2024-01-16
Anticipated expiration: 2040-11-04
Also published as: CN112450600A

Abstract

The invention provides a truckle telescopic mobile office table, which comprises a table body and a rolling device, wherein hollow grooves are formed in the front end and the rear end of the central positions of the left side and the right side of the bottom of the table body, screw rods are longitudinally and horizontally connected to the left side and the right side of the central position between the hollow grooves on the same side, grooves are formed in the front side of the table body corresponding to the hollow grooves, gears are fixedly connected to the front ends of the screw rods, vertical grooves are formed in the left end and the right end of the rear side of the table body, transverse grooves are formed in the upper end of the rear side of the table body, rotating shafts II are vertically and horizontally connected to the vertical grooves, fixing plates are fixedly connected to the left end and the right end of the central position in the transverse grooves, a rotating shaft I is connected with the rotating shaft II through conical gear transmission, a clip groove is formed in the top of the table body, and an interception piece is connected to the sliding of the clip groove.

Description

Caster telescopic mobile office table

Technical Field

The invention relates to the technical field of office equipment, in particular to a mobile office table with retractable casters.

Background

The office desk is a desk which is arranged for convenience in daily life work and social activities.

At present, the conventional office desk generally has no moving structure, and when the conventional office desk needs to be carried, a plurality of people are usually required to operate and carry, and the labor is wasted, in addition, a small number of office desks with universal wheels are installed, the universal wheels are locked to achieve a fixing effect, and the conventional office desk is convenient to move, but stress points are arranged on the wheels, so that the wheels are easy to damage, and meanwhile, the contact area between the wheels and the ground is small, so that the office desk is not stable enough, and further research on the office desks with the universal wheels is required.

Disclosure of Invention

In order to solve the technical problems, the invention provides a telescopic movable office table with casters, which aims to solve the problems of inconvenient movement and unstable support of the office table.

The invention provides a telescopic mobile office table with casters, which is realized by the following specific technical means: the utility model provides a telescopic mobile desk of truckle, including the table body, rolling device, the table body bottom left and right sides central point puts the front and back end and all sets up hollow groove, central point puts between the hollow groove of same side and all vertically horizontally rotate and be connected with the lead screw, the table body front side corresponds hollow groove and all is equipped with the recess, the lead screw front end all extends to fixedly connected with gear in the recess, it is connected with drive gear to lie in vertical horizontally rotation between the lead screw in the recess, drive gear and lead screw upper end gear meshing joint, the table body is located hollow groove left and right sides and all is equipped with hidden groove, hollow groove and hidden groove intercommunication setting, the table body is located hollow groove upper end and all is equipped with the storage tank, but install the strutting arrangement who reciprocates in the hollow groove, all be equipped with strutting arrangement fixed connection's rolling device in the hidden groove, table body rear side left and right sides all is equipped with vertical groove, table body rear side upper end is located and is equipped with the cross slot between the vertical groove, all vertically horizontally rotate and be connected with pivot two in the cross slot, both ends all fixedly connected with the fixed plate about central point put in the cross slot, rotate and be connected with pivot one between the fixed plate, rotate and be connected with pivot, two taper gear drive connection has the pivot, the top is connected with the pivot through two-way taper gear, the stop joint.

Preferably, the groove on one side of the table body is hinged with a door plate, the front end of the driving gear inside the groove is fixedly connected with a handle, and the rear end of the screw rod on one side far away from the center of the table body extends into the vertical groove and is in transmission connection with the rotating shaft through the bevel gear.

Preferably, the supporting device comprises a type driving rod, a supporting seat, a first rotating shaft III, a folding rod assembly and a top plate, wherein the front side and the rear side of the central position of the lower end of a screw rod are both transversely and vertically connected with the first rotating shaft III in a rotating manner, the left side and the right side of the central position of the first rotating shaft III are both fixedly connected with gears, the center of the top of the hollow groove is vertically and fixedly connected with an auxiliary rod, the auxiliary rod is in an inverted T shape, the lower end of the auxiliary rod is sleeved with a type driving rod, the front end and the rear end of the left side and the right side of the type driving rod are both sequentially and fixedly connected with gear teeth from top to bottom, the type driving rod and the gear teeth of the front side and the rear side correspond to the front side and the rear side of the first rotating shaft III, the upper end of the folding rod assembly is movably mounted on the upper end of the folding rod assembly, the top plate is connected with the supporting seat in a driving manner between the three outer side lower ends of the first rotating shaft, the front side and the left side and the rear side of the supporting seat are both sequentially provided with gear teeth from top to bottom, and the front side and rear side gear teeth of the inner front side of the supporting seat correspond to the front side and rear side of the first rotating shaft III upper end gear engagement.

Preferably, the folding rod assembly comprises a moving block and a third connecting rod, the upper end and the lower end of the moving block are hinged with the third connecting rod, the front end and the rear end of the left side and the right side of the top of the driving rod are hinged with the third connecting rod, the other end of the third connecting rod is hinged with the moving block, the moving block is in threaded connection with the upper end of a screw rod, two moving blocks are arranged at the upper end of the screw rod in a relative mode, the upper end of the moving block is hinged with the third connecting rod, and the third connecting rod at the upper end of the moving block is hinged with a top plate.

Preferably, the supporting seat is U-shaped, and a push rod is fixedly connected between one side of the top of the supporting seat far away from the center of the table body and the bottom of the interception member and is in sliding connection with the inside of the table body.

Preferably, the rolling device comprises a first connecting rod, a second connecting rod, a shaft seat plate and a rolling assembly, wherein the second connecting rod is longitudinally arranged in the hidden groove, the front end and the rear end of one side of the second connecting rod, which is close to the hollow groove, are fixedly connected with the first connecting rod, the front side and the rear side of the bottom of the second connecting rod are vertically and fixedly connected with a shaft seat plate, and the rolling assembly is movably installed between the lower ends of the shaft seat plate.

Preferably, the rolling assembly comprises a second rotating shaft III, a dust collection cylinder, a rotary cylinder, a dust collection pipe, fan wheels, a fixed rod, a fixed frame and a collecting box, wherein the dust collection cylinder is sleeved at the center of the second rotating shaft III, the upper end of the second rotating shaft III is positioned at the front side and the rear side of the dust collection cylinder and is fixedly connected with the rotary cylinder, one end of the rotary cylinder, close to the dust collection cylinder, is sleeved at the upper end of the dust collection cylinder, the upper end of the second rotating shaft III is positioned at the inner side of the rotary cylinder and is fixedly connected with the dust collection pipe, the first pipe opening of the dust collection pipe is rotationally connected at the upper end of the dust collection cylinder and is communicated with the inner side of the dust collection cylinder, the other two pipe openings of the dust collection pipe are fixedly connected with the inner wall of the rotary cylinder and are communicated with the outside of the rotary cylinder, the third upper end of the second rotating shaft is positioned at the inner center of the dust collection cylinder and is fixedly connected with the fixed rod between the top center of the second connecting rod II, the fixed rod is hollow inside the fixed rod is communicated with the inner side of the dust collection cylinder, the fan wheels are correspondingly arranged at the bottom of the fixed rod, the front side and the fixed rod is fixedly connected with the fixed frame, the push-pull block is arranged in the inner side of the fixed rod is, and the cleaning hair is arranged between the shaft seat plate.

Preferably, one end of the connecting rod is fixedly connected with a driving rod.

Preferably, the interception member is in a shape of a mouth, the interception member is made of wood plates, and soft materials are wrapped on the surfaces of the interception member.

The beneficial effects are that:

1. the folding assembly is driven to prop open through the lead screw, so that the type driving rod moves downwards from the hollow groove, the supporting seat is driven to ascend, meanwhile, the type driving rod drives the rolling device to contact with the ground from the hidden groove, the table body is convenient to move, the supporting seat is not required to contact with the ground, the contact area is larger, the table body is more stable, and meanwhile, the rolling assembly is hidden and the hidden groove does not hinder the attractiveness of the table body.

2. In the moving process, the rotating shaft III drives the rotating drum to clean dust accumulation at the bottom of the table body, the fan wheel sucks dust into the dust collection drum, and then the dust enters the collection box through the fixing rod, so that dust is removed conveniently, the collection box can be pulled and pulled out, and the dust is convenient to process.

3. The supporting seat moves towards the upper end of the hollow groove in the moving process, so that the pushing rod is pushed upwards, the blocking piece is pushed out by the pushing rod, and articles at the upper end of the office table can be prevented from falling in the moving process.

Drawings

FIG. 1 is a schematic view of the present invention in a partial cross-sectional view.

Fig. 2 is a schematic diagram of a side view partially in section of the present invention.

Fig. 3 is an enlarged schematic view of the structure of fig. 2 a according to the present invention.

Fig. 4 is a schematic top view of the table body according to the present invention.

Fig. 5 is a schematic diagram of a front view of a driving rod according to the present invention .

FIG. 6 is a schematic side view of a rolling assembly of the present invention.

In fig. 1 to 6, the correspondence between the component names and the reference numerals is:

the novel dust collection table comprises a table body 1, a hidden groove 101, a groove 102, a storage groove 103, a vertical groove 104, a horizontal groove 105, a clamping groove 106, a hollow groove 107, a screw rod 2, a supporting device 3, a type driving rod 31, a supporting seat 32, a first rotating shaft III 33, a folding rod assembly 34, a top plate 35, a driving gear 4, a rolling device 5, a first connecting rod 51, a second connecting rod 52, a shaft seat 53, a rolling assembly 54, a fixed plate 6, a first rotating shaft 7, a second rotating shaft 8, an interception piece 9, a push rod 10, a third second rotating shaft 11, a dust collection cylinder 12, a rotary cylinder 13, a dust collection pipe 14, a fan wheel 15, a fixed rod 16, a fixed frame 17, a collection box 18, a moving block 19, a third connecting rod 20 and an auxiliary rod 21.

Detailed Description

The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without making any inventive effort based on the embodiments of the present invention are within the scope of protection of the present invention.

Examples:

as shown in fig. 1 to 6: the utility model provides a telescopic mobile desk of truckle, including the table body 1, rolling device 5, the front and back end of the left and right sides central point of table body 1 bottom all sets up hollow groove 107, the horizontal rotation of central point left and right sides all is connected with lead screw 2 between the hollow groove 107 of same side, table body 1 front side corresponds hollow groove 107 and all is equipped with recess 102, lead screw 2 front end all extends to recess 102 internal fixation has the gear, lie in between the lead screw 2 in the recess 102 vertical horizontal rotation be connected with drive gear 4, drive gear 4 and lead screw 2 upper end gear meshing joint, table body 1 lies in hollow groove 107 both sides all and is equipped with hidden groove 101, hollow groove 107 and hidden groove 101 intercommunication setting, table body 1 lies in hollow groove 107 upper end all and is equipped with storage groove 103, install the strutting arrangement 3 that can reciprocate in the hollow groove 107, all be equipped with rolling device 5 with strutting arrangement 3 fixed connection in the hidden groove 101, table body 1 rear side both ends all are equipped with vertical groove 104, table body 1 rear side upper end lies in vertical groove 104 internal fixation is equipped with horizontal groove 105, vertical horizontal rotation connection has two horizontal rotation 8 to connect with two rotation shafts 8, 7 fixedly connect with two rotation shafts 106 through the inner side 7, 7 fixedly connect with two rotation shafts 106, 7-fixedly connect with two rotation shafts through the top 7.

Wherein: the recess 102 of table body 1 one side articulates there is the door plant, and recess 102 inside drive gear 4 front end fixedly connected with handle, keep away from table body 1 center one side lead screw 2 rear end and extend to in the perpendicular groove 104 and be connected through the bevel gear transmission with pivot two 8, rotate drive gear 4 through the handle, can drive lead screw 2 and rotate, make the lead screw 2 of table body 1 both sides all rotate through pivot two 8 and pivot one 7, thereby be convenient for control folding rod subassembly 34 flexible folding simultaneously, when not needing to remove, with recess 102 front side door closure, can not expose the gear spare part, more pleasing to the eye.

Wherein: the supporting device 3 comprises a -type driving rod 31, a supporting seat 32, a first rotating shaft III 33, a folding rod assembly 34 and a top plate 35, wherein the front side and the rear side of the central position of the lower end of a screw rod 2 are transversely and vertically connected with the first rotating shaft III 33 in a hollow groove 107, the left side and the right side of the central position of the upper end of the first rotating shaft III 33 are fixedly connected with gears, the center of the top in the hollow groove 107 is vertically and fixedly connected with an auxiliary rod 21, the auxiliary rod 21 is in an inverted T shape, the lower end of the auxiliary rod 21 is sleeved with a -type driving rod 31, the front end and the rear end of the left side and the right side of the -type driving rod 31 are sequentially and fixedly connected with gear teeth from top to bottom, the -type driving rod 31 is in meshed clamping connection with the gear at the upper end of the front and rear side first rotating shaft III 33 corresponding to the gear teeth at the front and rear side, the folding rod assembly 34 is movably mounted at the left side and the center of the top of the -type driving rod 31, the upper end of the folding rod assembly 34 is provided with the top plate 35, the lower end transmission of the outer side between the first rotating shafts III 33 is connected with the supporting seat 32, gear teeth are sequentially arranged at the left end and the right end of the front side and the rear side of the inside of the supporting seat 32 from top to bottom, the gear teeth of the front side and the rear side of the inside of the supporting seat 32 are engaged and clamped with the gear teeth of the upper end of the first rotating shaft III 33 corresponding to the front side and the rear side, the screw rod 2 is rotated before the desk is moved, the moving block 19 moves towards the center of the hollow groove 107, the connecting rod III 20 pushes the type driving rod 31 downwards, the type driving rod 31 drives the first rotating shaft III 33 to rotate in the downward process, the supporting seat 32 moves in the opposite direction with the type driving rod 31, the rolling device 5 is contracted into the hollow groove 107, and meanwhile the type driving rod 31 moves out of the hidden groove 101 to support the ground, and the desk body 1 is pushed to move.

Wherein: folding pole subassembly 34 is including movable block 19, connecting rod three 20, the upper and lower end of movable block 19 all articulates there is connecting rod three 20, the front and back end all articulates there is connecting rod three 20 at type actuating lever 31 top left and right sides, the connecting rod three 20 other end all articulates there is movable block 19, movable block 19 threaded connection is in lead screw 2 upper end, the lead screw 2 upper end is provided with two movable blocks 19 and sets up relatively, the movable block 19 upper end also articulates there is connecting rod three 20, connecting rod three 20 and roof 35 of movable block 19 upper end articulate, roof 35's effect is the effect that makes folding pole subassembly 34 whole steadiness improve, play the effect of support processing.

Wherein: the supporting seat 32 is U-shaped, and the supporting seat 32 top is kept away from fixedly connected with push rod 10 between the center side of the table body 1 and the bottom of the interception piece 9, and push rod 10 and the inside sliding connection of the table body 1, the supporting seat 32 in-process that reciprocates pushes up push rod 10, and push rod 10 then promotes the interception piece 9 and reciprocates.

Wherein: the rolling device 5 comprises a first connecting rod 51, a second connecting rod 52, a shaft seat plate 53 and a rolling assembly 54, wherein the second connecting rod 52 is longitudinally arranged in the hidden groove 101, the front end and the rear end of one side of the second connecting rod 52, which is close to the hollow groove 107, are fixedly connected with the first connecting rod 51, the front side and the rear side of the bottom of the second connecting rod 52 are vertically and fixedly connected with the shaft seat plate 53, and the rolling assembly 54 is movably arranged between the lower ends of the shaft seat plate 53.

Wherein: the rolling assembly 54 comprises a second rotating shaft three 11, a dust collection cylinder 12, a rotating cylinder 13, a dust collection tube 14, a fan wheel 15, a fixed rod 16, a fixed frame 17 and a collection box 18, wherein the center of the second rotating shaft three 11 is sleeved with the dust collection cylinder 12, the upper end of the second rotating shaft three 11 is fixedly connected with the rotating cylinder 13 at the front side and the rear side of the dust collection cylinder 12, one end of the rotating cylinder 13 close to the dust collection cylinder 12 is sleeved at the upper end of the dust collection cylinder 12, the upper end of the second rotating shaft three 11 is fixedly connected with the dust collection tube 14 inside the rotating cylinder 13, the dust collection tube 14 is a three-way tube, one tube mouth of the dust collection tube 14 is rotatably connected at the upper end of the dust collection cylinder 12 and is communicated with the inside of the dust collection cylinder 12, the other two tube mouths of the dust collection tube 14 are fixedly connected with the inner wall of the rotating cylinder 13 and are communicated with the outside of the rotating cylinder 13, the upper end of the second rotating shaft three 11 is positioned at the center inside the dust collection cylinder 12 and is fixedly connected with the fan wheel 15, the dust collection device is characterized in that a fixed rod 16 is fixedly connected between the center of the top of the dust collection cylinder 12 and a connecting rod II 52, the inside of the fixed rod 16 is hollow and is communicated with the inside of the dust collection cylinder 12, a fan wheel 15 is correspondingly arranged at the bottom of the fixed rod 16, a fixed frame 17 is fixedly connected to the front side and the rear side of the fixed rod 16, a collecting box 18 in push-pull clamping is arranged in the fixed frame 17, a second rotating shaft III 11 is rotationally connected between shaft seat plates 53, cleaning hair is arranged on the outer surface of the rotating cylinder 13 and the ground, the rotating cylinder 13 is in friction rolling, so that the fan wheel 15 is driven to rotate, the cleaning hair on the surface of the rotating cylinder 13 sweeps dust at the bottom of the table body 1, the fan wheel 15 rotates to guide the dust into the dust collection pipe 14, the dust enters the dust collection cylinder 12 through the dust collection pipe 14, meanwhile, the dust enters the collecting box 18 through the fixed rod 16, and the collecting box 18 is taken out for cleaning dust in the later period.

Wherein: the other end of the first connecting rod 51 is fixedly connected with a type driving rod 31, and the rolling device 5 and the type driving rod 31 move in the same direction.

Wherein: the interception piece 9 is "mouthful" form, the interception piece 9 is wooden panel, the outward appearance parcel has soft material, the article that interception piece 9 can prevent the desktop in the table body 1 removal in-process rolls down, the surface soft material can prevent article damage of colliding with simultaneously, move to the destination, reverse rotation drive gear 4 through the handle again, make type actuating lever 31 get into hollow groove 107, roll the device 5 and follow type actuating lever 31 and upwards move into hidden groove 101 simultaneously, the supporting seat 32 supports ground, make table body 1 firm, when continuing to rotate the handle, make supporting seat 32 can stretch out and draw back, thereby adjust table body 1 height, be applicable to the staff of different heights.

Working principle: when the table body 1 needs to be moved, the door plate at the front side of the groove 102 is opened, the handle at the upper end of the driving gear 4 is rotated to drive the screw rod 2 to rotate, the folding rod assembly 34 is enabled to push the type driving rod 31 to move downwards in the rotating process of the screw rod 2, the type driving rod 31 drives the first rotating shaft III 33 to rotate in the downward process, so that the supporting seat 32 and the type driving rod 31 move in opposite directions to shrink and enter the hollow groove 107, meanwhile, the rolling device 5 moves out of the hidden groove 101 to support the ground, the table body 1 is pushed to move, the rotating drum 13 and the ground are in friction rolling, so that the fan wheel 15 is driven to rotate, cleaning hair on the surface of the rotating drum 13 sweeps dust at the bottom of the table body 1, the fan wheel 15 rotates to guide the dust into the dust collecting tube 14, the dust enters the dust collecting cylinder 12 through the dust collecting tube 14, meanwhile, the dust enters the collecting box 18 through the fan wheel 15, the collecting box 18 is taken out in the later stage, the dust is removed to a destination, the driving gear 4 is reversely rotated through the handle, the type driving rod 31 enters the hollow groove 107, meanwhile, the rolling device 5 moves out of the hidden groove 101, and the table body 1 is enabled to move to be hidden by the supporting seat 1, and the height of the table body 32 is enabled to continue to rotate, and the table body 32 is enabled to be stable, and the table body can be adjusted to be kept stable, and the table body can not can be moved by the operator can be adjusted.

Claims

1. The utility model provides a retractable mobile office table of truckle, includes the table body (1), rolling device (5), its characterized in that: the front end and the rear end of the center position of the left side and the right side of the bottom of the table body (1) are respectively provided with a hollow groove (107), the left side and the right side of the center position between the hollow grooves (107) on the same side are respectively and horizontally rotated and connected with a screw rod (2), the front side of the table body (1) is respectively and horizontally provided with a groove (102) corresponding to the hollow grooves (107), the front end of the screw rod (2) is respectively and horizontally extended to a gear fixedly connected with the inside of the groove (102), a driving gear (4) is longitudinally and horizontally rotated and connected between the screw rods (2) in the groove (102), the driving gear (4) is engaged with the gear at the upper end of the screw rod (2), the left side and the right side of the hollow grooves (107) of the table body (1) are respectively provided with a hidden groove (101), the hollow grooves (107) are respectively and horizontally communicated with the hidden grooves (101), the upper end of the table body (1) is respectively provided with a storage groove (103), a supporting device (3) capable of moving up and down is arranged in the hollow grooves (107), the supporting device (3) comprises a type driving rod (31), a supporting seat (32), a third rotating shaft (33), a rotating shaft (33) and a top plate (33) are respectively and a top plate (33) at the front end of the table body and the table body (2) are respectively and the front end of the table body, gears are fixedly connected to the left side and the right side of the center position of the upper end of the third rotating shaft (33), an auxiliary rod (21) is vertically fixedly connected to the center of the top in the hollow groove (107), the auxiliary rod (21) is in an inverted T shape, a type driving rod (31) is sleeved at the lower end of the auxiliary rod (21), gear teeth are sequentially and fixedly connected to the front end and the rear end of the left side and the right side of the type driving rod (31) from top to bottom, the type driving rod (31) is engaged and clamped with the gears at the upper end of the first rotating shaft (33) on the front side and the rear side corresponding to the gear teeth on the front side and the rear side, folding rod assemblies (34) are movably mounted on the left side and the right side of the center of the top of the type driving rod (31), the folding rod assembly (34) is characterized in that a top plate (35) is arranged at the upper end of the folding rod assembly (34), a supporting seat (32) is connected to the lower end of the outer side between the first rotating shafts (33) in a transmission way, gear teeth are sequentially arranged at the left and right ends of the front side and the rear side of the inside of the supporting seat (32) from top to bottom, gear teeth at the upper end of the first rotating shafts (33) corresponding to the front side and the rear side of the inside of the supporting seat (32) are engaged and clamped, rolling devices (5) fixedly connected with the supporting devices (3) are arranged in the hidden grooves (101), vertical grooves (104) are arranged at the left and right ends of the rear side of the table body (1), transverse grooves (105) are arranged between the vertical grooves (104) at the upper end of the rear side of the table body (1), the vertical groove (104) is internally and horizontally connected with a second rotating shaft (8) in a vertical and horizontal mode, the left end and the right end of the center position in the transverse groove (105) are fixedly connected with a first rotating shaft (7) in a rotating mode, the first rotating shaft (7) is connected with the second rotating shaft (8) through a bevel gear in a transmission mode, the top of the table body (1) is provided with a 'back' -shaped clamping groove (106), and the clamping groove (106) is connected with an interception piece (9) in a sliding mode;

the supporting seat (32) is U-shaped, a push rod (10) is fixedly connected between one side of the top of the supporting seat (32) far away from the center of the table body (1) and the bottom of the interception piece (9), and the push rod (10) is in sliding connection with the inside of the table body (1);

the rolling device (5) comprises a first connecting rod (51), a second connecting rod (52), a shaft seat plate (53) and a rolling assembly (54), wherein the second connecting rod (52) is longitudinally arranged in the hidden groove (101), the first connecting rod (51) is fixedly connected to the front end and the rear end of one side of the second connecting rod (52) close to the hollow groove (107), the shaft seat plate (53) is vertically and fixedly connected to the front side and the rear side of the bottom of the second connecting rod (52), and the rolling assembly (54) is movably mounted between the lower ends of the shaft seat plate (53);

the rolling assembly (54) comprises a second rotating shaft III (11), a dust collection cylinder (12), a rotary drum (13), a dust collection pipe (14), a fan wheel (15), a fixed rod (16), a fixed frame (17) and a collection box (18), wherein the dust collection cylinder (12) is sleeved at the center of the second rotating shaft III (11), the rotary drum (13) is fixedly connected with the rotary drum (13) at the front side and the rear side of the dust collection cylinder (12), one end of the rotary drum (13) close to the dust collection cylinder (12) is sleeved at the upper end of the dust collection cylinder (12), the upper end of the second rotating shaft III (11) is fixedly connected with the dust collection pipe (14) in the rotary drum (13), the dust collection pipe (14) is a three-way pipe, one pipe orifice of the dust collection pipe (14) is rotatably connected to the upper end of the dust collection cylinder (12), the other two pipe orifices of the dust collection pipe (14) are fixedly connected with the inner wall of the rotary drum (13) and are communicated with the outside, the upper end of the second rotating shaft III (11) is fixedly connected with the fan wheel (15) in the rotary drum (12), the dust collection pipe (12) is fixedly connected with the hollow rod (16) in the hollow cylinder (16) and fixedly connected with the dust collection pipe (16), the fan wheel (15) and the bottom of the fixed rod (16) are correspondingly arranged, the front side and the rear side of the fixed rod (16) are fixedly connected with fixed frames (17), collecting boxes (18) which are in push-pull clamping are arranged in the fixed frames (17), the second rotating shaft III (11) is rotationally connected between shaft seat plates (53), and cleaning hair is arranged on the outer surface of the rotating drum (13).

2. The caster-retractable mobile desk of claim 1, wherein: the groove (102) at one side of the table body (1) is hinged with a door plate, the front end of the driving gear (4) in the groove (102) is fixedly connected with a handle, and the rear end of the screw rod (2) at one side far away from the center of the table body (1) extends into the vertical groove (104) and is connected with the rotating shaft II (8) through a bevel gear in a transmission manner.

3. The caster-retractable mobile desk of claim 1, wherein: folding pole subassembly (34) are including movable block (19), connecting rod three (20), all articulated have connecting rod three (20) in movable block (19) upper and lower extreme, and all articulated have connecting rod three (20) in type actuating lever (31) top left and right sides front and back end, all articulated have movable block (19) in the connecting rod three (20) other end, movable block (19) threaded connection is in lead screw (2) upper end, and lead screw (2) upper end is provided with two movable blocks (19) and sets up relatively, movable block (19) upper end also articulates there is connecting rod three (20), and connecting rod three (20) and roof (35) of movable block (19) upper end are articulated.

4. The caster-retractable mobile desk of claim 1, wherein: the other end of the first connecting rod (51) is fixedly connected with a driving rod (31).

5. The caster-retractable mobile desk of claim 1, wherein: the interception piece (9) is in a shape of a mouth, the interception piece (9) is made of wood plates, and soft materials are wrapped on the outer surfaces of the interception piece.