CN214790136U

CN214790136U - A movable raise dust monitoring facilities for building site

Info

Publication number: CN214790136U
Application number: CN202121149993.0U
Authority: CN
Inventors: 张加翠
Original assignee: Shanghai Zhikun Environmental Protection Technology Co ltd
Current assignee: Shanghai Zhikun Environmental Protection Technology Co ltd
Priority date: 2021-05-26
Filing date: 2021-05-26
Publication date: 2021-11-19
Anticipated expiration: 2031-05-26

Abstract

The utility model discloses a movable raise dust monitoring facilities for building site, which belongs to the technical field of environmental monitoring, and comprises a movable plate, a rotating disc, a fixed plate, a bearing sleeve, a lifting block, a lifting rack, a lifting adjusting component, an installation column, a sliding sleeve, a locking column, a sleeve, a connecting column, a U-shaped frame, an adjusting shaft, a fixed frame, a display screen body, an angle adjusting component, two supporting components, four sliding columns and four self-locking universal wheels, wherein the top of the movable plate is provided with an annular chute, the rotating disc is fixedly connected with the tops of the four sliding columns, the installation column is vertically arranged at the top of the lifting block, the display screen body is arranged on the fixed frame, the angle adjusting component is arranged at one end of the adjusting shaft extending to the outside of the U-shaped frame, the two supporting components are symmetrically arranged on the movable plate, when the raise dust monitoring facilities are used, the angle of display screen can't be adjusted, and the position of display screen need remove whole equipment and adjust, very inconvenient problem.

Description

A movable raise dust monitoring facilities for building site

Technical Field

The utility model belongs to the technical field of the environmental monitoring technique and specifically relates to a movable raise dust monitoring facilities for building site is related to.

Background

With the increasing requirements of China on environmental management, PM2.5 becomes an important index of environmental monitoring, and the raised dust in the air is used as an important component influencing the PM2.5 index, so that the raised dust becomes a monitoring object of environmental protection departments at all levels and also becomes a popular topic of the whole people. Wherein building site, especially the building site in urban area, the raise dust that produces in the work progress not only influences constructor's healthy, also causes certain influence to near air.

When current raise dust monitoring facilities was used, the angle of display screen can't be adjusted to the position of display screen need remove whole equipment and adjust, and is very inconvenient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a movable raise dust monitoring facilities for building site to solve among the prior art raise dust monitoring facilities when using, the angle of display screen can't be adjusted, and the position of display screen need remove whole equipment and adjust very inconvenient problem.

The utility model provides a movable raise dust monitoring facilities for building site, including movable plate, rolling disc, fixed plate, bearing cover, elevator, lifting rack, lift adjustment subassembly, erection column, slip cap, locking post, sleeve, spliced pole, U type frame, regulating spindle, fixed frame, display screen body, angle adjusting component, two supporting components, four slip posts and four from locking-type universal wheels, the top of movable plate is equipped with annular spout, four the slip posts slidable mounting is in annular spout to the top of four slip posts extends to the top of movable plate top, the rolling disc is fixedly connected with the top of four slip posts, the fixed plate is installed at the top of rolling disc, the bearing cover is vertical to be set up on the fixed plate, be equipped with the opening rather than the inside intercommunication on the lateral wall of bearing cover, the elevator slidable mounting is in bearing cover, the lifting rack is arranged at the opening, the lifting rack is fixedly connected with the outer wall of the lifting block, the lifting adjusting component is arranged on the outer wall of the bearing sleeve, the mounting column is vertically arranged at the top of the lifting block, the sliding sleeve is sleeved on the mounting column and is in sliding fit with the mounting column, the locking column is in threaded connection with the sliding sleeve, the tail end of the locking column is abutted against the mounting column, the sleeve is horizontally arranged on the outer wall of the sliding sleeve, the connecting column is slidably arranged in the sleeve, a through hole is formed in the sleeve, a plurality of positioning holes are formed in the connecting column at equal intervals, a positioning bolt in threaded connection with the positioning holes is arranged in the through hole, the U-shaped frame is arranged at the end part of the connecting column, which is far away from the sleeve, the adjusting shaft is rotatably arranged in the U-shaped frame, one end of the adjusting shaft extends to the outside of the U-shaped frame, the fixing frame is arranged on the adjusting shaft, the display screen body is installed on fixed frame, the one end that the regulating spindle extends to U type frame outside, two is installed to the angle adjusting part the supporting component symmetry sets up on the movable plate, four be the rectangle distribution in the bottom of movable plate from the locking-type universal wheel.

Preferably, angle modulation subassembly includes regulating handle, curved gear, L template, slide rail, slider, adjusting rack, push pedal and electric putter, the regulating handle is installed and is extended to the outside one end of U type frame at the regulating spindle, curved gear installs the bottom at the regulating handle, the bottom fixed connection of L template and U type frame, the slide rail level sets up on the L template, slider slidable mounting is on the slide rail, adjusting rack level sets up the top at the slider to adjusting rack and curved gear meshing, the outer wall fixed connection of push pedal and slider, the electric putter level sets up on the L template to electric putter's output and push pedal fixed connection.

Preferably, the lift adjustment subassembly is including adjusting seat, axis of rotation, lifting gear, rotation handle and limiting plate, it sets up on the outer wall that bears the weight of the cover to adjust the seat, the axis of rotation rotates and installs in adjusting the seat to the one end of axis of rotation extends to the outside of adjusting the seat, lifting gear installs in the axis of rotation to lifting gear and lifting rack mesh, rotate the handle and the axis of rotation extends to the outside one end fixed connection of regulation seat, the limiting plate sets up on the outer wall of bearing the weight of the cover, be equipped with spacing hole on the limiting plate, it is equipped with the mounting hole that a plurality of is rich its centre of a circle equidistant setting to rotate to handle, it passes the spacing bolt of mounting hole and spacing hole spiro union still to be equipped with on the rotation handle.

Preferably, each support component comprises a threaded sleeve, a screw rod, a support plate and a handle, the threaded sleeve is vertically arranged on the movable plate, the screw rod is arranged in the threaded sleeve and is in threaded fit with the threaded sleeve, the bottom end of the screw rod extends to the bottom lower portion of the movable plate, the support plate is fixedly connected with the bottom end of the screw rod, and the handle is fixedly connected with the top end of the screw rod.

Preferably, the top of movable plate is equipped with the guide rail, slidable mounting has the movable block on the guide rail, the top of movable block is equipped with the picture peg, the edge of rolling disc is equipped with the slot that a plurality of is rich its centre of a circle equidistant setting.

Preferably, a push rod is vertically arranged on the rotating disc, and a rubber sleeve is arranged at the top end of the push rod.

Compared with the prior art, the beneficial effects of the utility model reside in that:

one of which, the utility model discloses when the angle of display screen body needs to be adjusted, electric putter drives the push pedal and removes, the push pedal drives the slider and slides on the slide rail, the slider drives the regulation rack and removes, the regulation rack drives the arc gear and rotates, the arc gear drives the regulation handle and rotates, the regulation handle drives the regulating spindle and rotates, the regulating spindle drives the display screen body and rotates to suitable angle, utilize electric putter to drive the regulation rack forward or backward movement and then realize that the display screen body carries out angle modulation at the certain limit, when the position of display screen body needs to be adjusted, only need the manual work to rotate the rolling disc, the rolling disc drives four slip posts and at annular spout, the rolling disc drives the display screen internal rotation body and rotates to suitable position, need not the whole equipment of manual work removal and adjusts, therefore, the great convenience is obtained.

Two, the utility model discloses an artifical rotation handle that rotates drives the axis of rotation and rotates, the axis of rotation drives the lifting gear and rotates, lifting gear drives the lifting rack and removes, the lifting rack drives the elevator and removes in bearing the cover, the purpose of drive lifting rack removal has been reached, make things convenient for the lifting rack to drive the display screen body at last and remove to suitable height, after the display screen body removes to suitable height, the manual work passes the mounting hole spiro union with spacing bolt in spacing downthehole, realize the spacing to the rotation handle.

And thirdly, the utility model discloses a manual work promotes the movable block and slides on the guide rail, and the movable block drives the picture peg and removes, and the picture peg removes to inserting in the slot that corresponds, and the picture peg carries on spacingly to the rolling disc, and when the position of display screen body needs to be adjusted, artifical reverse promotion movable block, the movable block drives picture peg and slot separation, then the manual work rotate the rolling disc can.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic perspective view of the present invention;

fig. 3 is a schematic three-dimensional structure diagram of the present invention;

FIG. 4 is an enlarged view taken at A in FIG. 4;

fig. 5 is a schematic view of a partial three-dimensional structure of the present invention;

fig. 6 is a schematic view of a partial three-dimensional structure of the present invention;

FIG. 7 is a partially exploded view of the present invention;

fig. 8 is a schematic view of a three-dimensional structure of the limiting plate of the present invention.

Reference numerals: moving the plate 1; a turn disc 2; a fixing plate 3; a bearing sleeve 4; a lifting block 5; a lifting rack 6; a lifting adjusting component 7; a mounting post 8; a sliding sleeve 9; a locking post 10; a sleeve 11; a connecting column 12; a U-shaped frame 13; an adjustment shaft 14; a fixed frame 15; a display screen body 16; an angle adjusting assembly 17; a support assembly 18; a slide post 19; a self-locking universal wheel 20; an annular chute 21; an opening 22; a through hole 23; positioning holes 24; a positioning bolt 25; an adjustment handle 26; an arc gear 27; an L-shaped plate 28; a slide rail 29; a slider 30; an adjustment rack 31; a push plate 32; an electric push rod 33; an adjustment seat 34; a rotating shaft 35; a lifting gear 36; a turning handle 37; a limit plate 38; a stopper hole 39; a mounting hole 40; a limit bolt 41; a threaded sleeve 42; a screw 43; a support plate 44; a handle 45; a guide rail 46; a moving block 47; an insert plate 48; a slot 49; a push rod 50; a rubber sleeve 51.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention.

The components of the embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 8, an embodiment of the present invention provides a movable dust monitoring device for a building site, including a movable plate 1, a rotary disc 2, a fixed plate 3, a bearing sleeve 4, a lifting block 5, a lifting rack 6, a lifting adjusting assembly 7, a mounting column 8, a sliding sleeve 9, a locking column 10, a sleeve 11, a connecting column 12, a U-shaped frame 13, an adjusting shaft 14, a fixed frame 15, a display screen body 16, an angle adjusting assembly 17, two supporting assemblies 18, four sliding columns 19 and four self-locking universal wheels 20, wherein the top of the movable plate 1 is provided with an annular chute 21, the four sliding columns 19 are slidably mounted in the annular chute 21, the top ends of the four sliding columns 19 extend above the top of the movable plate 1, the rotary disc 2 is fixedly connected with the top of the four sliding columns 19, the fixed plate 3 is mounted on the top of the rotary disc 2, the bearing sleeve 4 is vertically arranged on the fixed plate 3, an opening 22 communicated with the inside of the bearing sleeve 4 is arranged on the side wall of the bearing sleeve 4, the lifting block 5 is slidably mounted in the bearing sleeve 4, the lifting rack 6 is arranged at the opening 22, the lifting rack 6 is fixedly connected with the outer wall of the lifting block 5, the lifting adjusting component 7 is mounted on the outer wall of the bearing sleeve 4, the mounting column 8 is vertically arranged at the top of the lifting block 5, the sliding sleeve 9 is sleeved on the mounting column 8, the sliding sleeve 9 is in sliding fit with the mounting column 8, the locking column 10 is in threaded connection with the sliding sleeve 9, the tail end of the locking column 10 is abutted against the mounting column 8, the sleeve 11 is horizontally arranged on the outer wall of the sliding sleeve 9, the connecting column 12 is slidably mounted in the sleeve 11, a through hole 23 is arranged on the sleeve 11, a plurality of positioning holes 24 which are arranged at equal intervals are arranged on the connecting column 12, a positioning bolt 25 which is in threaded connection with the positioning holes 24 is arranged in the through hole 23, the U-shaped frame 13 is mounted at the end part of the connecting column 12, which is far away from the sleeve 11, the adjusting shaft 14 is rotatably installed in the U-shaped frame 13, one end of the adjusting shaft 14 extends to the outside of the U-shaped frame 13, the fixing frame 15 is installed on the adjusting shaft 14, the display screen body 16 is installed on the fixing frame 15, the angle adjusting assembly 17 is installed at one end of the adjusting shaft 14 extending to the outside of the U-shaped frame 13, the two supporting assemblies 18 are symmetrically arranged on the moving plate 1, and the four self-locking universal wheels 20 are distributed at the bottom of the moving plate 1 in a rectangular shape; the sliding sleeve 9 is manually moved to slide on the mounting post 8 to a proper height, then the sliding sleeve 9 is locked and limited by the locking post 10, the connecting post 12 is manually moved to slide in the sleeve 11, the connecting post 12 drives the U-shaped frame 13 to move to a proper position, the connecting post 12 is installed in a corresponding positioning hole 24 to be limited by the positioning bolt 25, at the moment, the position of the display screen body 16 is preliminarily adjusted, then the lifting adjusting component 7 is used for driving the lifting rack 6 to move, the lifting rack 6 drives the lifting block 5 to move in the bearing sleeve 4, the lifting block 5 drives the mounting post 8 to move, the mounting post 8 moves to a proper height, the mounting post 8 drives the display screen body 16 to move to a proper height, when the angle of the display screen body 16 needs to be adjusted, the angle adjusting component 17 works to drive the adjusting shaft 14 to rotate, the adjusting shaft 14 drives the fixing frame 15 and the display screen body 16 to rotate, display screen body 16 rotates to suitable angle, the purpose of adjusting display screen body 16's angle has been reached, when display screen body 16's position needs to be adjusted, only need the manual work to rotate rolling disc 2, rolling disc 2 drives four sliding column 19 at the internal rotation of annular chute 21, rolling disc 2 drives display screen body 16 and rotates to suitable position, it adjusts to need not artifical whole equipment that removes, it is very convenient, four make things convenient for artifical the realization to remove whole equipment to raise dust monitoring department from locking-type universal wheel 20, two supporting component 18 carry out the outrigger to movable plate 1, improve the stability of whole equipment, prevent to take place to empty.

Specifically, the angle adjusting assembly 17 comprises an adjusting handle 26, an arc-shaped gear 27, an L-shaped plate 28, a sliding rail 29, a sliding block 30, an adjusting rack 31, a push plate 32 and an electric push rod 33, wherein the adjusting handle 26 is installed at one end of the adjusting shaft 14 extending to the outside of the U-shaped frame 13, the arc-shaped gear 27 is installed at the bottom of the adjusting handle 26, the L-shaped plate 28 is fixedly connected with the bottom of the U-shaped frame 13, the sliding rail 29 is horizontally arranged on the L-shaped plate 28, the sliding block 30 is slidably installed on the sliding rail 29, the adjusting rack 31 is horizontally arranged at the top of the sliding block 30, the adjusting rack 31 is meshed with the arc-shaped gear 27, the push plate 32 is fixedly connected with the outer wall of the sliding block 30, the electric push rod 33 is horizontally arranged on the L-shaped plate 28, and the output end of the electric push rod 33 is fixedly connected with the push plate 32; drive push pedal 32 through electric putter 33 and remove, push pedal 32 drives slider 30 and slides on slide rail 29, slider 30 drives regulation rack 31 and removes, regulation rack 31 drives arc gear 27 and rotates, arc gear 27 drives regulation handle 26 and rotates, regulation handle 26 drives regulating spindle 14 and rotates, regulating spindle 14 drives display screen body 16 and rotates to suitable angle, utilize electric putter 33 to drive regulation rack 31 and move forward or backward and then realize that display screen body 16 carries out the angle modulation at the certain limit, it is very convenient.

Specifically, the lifting adjusting assembly 7 comprises an adjusting seat 34, a rotating shaft 35, a lifting gear 36, a rotating handle 37 and a limiting plate 38, wherein the adjusting seat 34 is arranged on the outer wall of the bearing sleeve 4, the rotating shaft 35 is rotatably arranged in the adjusting seat 34, one end of the rotating shaft 35 extends to the outside of the adjusting seat 34, the lifting gear 36 is arranged on the rotating shaft 35, the lifting gear 36 is meshed with the lifting rack 6, the rotating handle 37 is fixedly connected with one end of the rotating shaft 35, which extends to the outside of the adjusting seat 34, the limiting plate 38 is arranged on the outer wall of the bearing sleeve 4, the limiting plate 38 is provided with a limiting hole 39, the rotating handle 37 is provided with a plurality of mounting holes 40 which are arranged at equal intervals around the circle center of the rotating handle, and the rotating handle 37 is further provided with a limiting bolt 41 which penetrates through the mounting holes 40 and is in threaded connection with the limiting hole 39; rotate handle 37 through the manual work and drive axis of rotation 35 and rotate, axis of rotation 35 drives lifting gear 36 and rotates, lifting gear 36 drives lifting rack 6 and removes, lifting rack 6 drives elevator 5 and removes in bearing cover 4, the purpose of driving lifting rack 6 and removing has been reached, make things convenient for lifting rack 6 to drive display screen body 16 at last and remove to suitable height, after display screen body 16 removed to suitable height, the manual work passes mounting hole 40 spiro union in spacing hole 39 with stop bolt 41, realize the spacing to rotating handle 37.

Specifically, each support assembly 18 comprises a threaded sleeve 42, a screw 43, a support plate 44 and a handle 45, the threaded sleeve 42 is vertically arranged on the moving plate 1, the screw 43 is arranged in the threaded sleeve 42, the screw 43 is in threaded fit with the threaded sleeve 42, the bottom end of the screw 43 extends to the lower part of the bottom of the moving plate 1, the support plate 44 is fixedly connected with the bottom end of the screw 43, and the handle 45 is fixedly connected with the top end of the screw 43; when the movable plate 1 moves to the raise dust monitoring position, the manual rotating handle 45 drives the screw 43 to rotate in the screw sleeve 42, the screw 43 moves downwards in the screw sleeve 42 while rotating, the screw 43 drives the supporting plate 44 to move downwards to be abutted to the ground, the supporting plate 44 stably supports the movable plate 1, the stability of the whole device is improved, the tilting is prevented, and when the movable plate 1 needs to move, only the reverse rotating handle 45 is needed to drive the supporting plate 44 to move upwards to be separated from the ground.

Specifically, the top of the moving plate 1 is provided with a guide rail 46, a moving block 47 is slidably mounted on the guide rail 46, the top of the moving block 47 is provided with a plug board 48, and the edge of the rotating disc 2 is provided with a plurality of slots 49 which are arranged at equal intervals around the center of the rotating disc; the moving block 47 is pushed manually to slide on the guide rail 46, the moving block 47 drives the inserting plate 48 to move, the inserting plate 48 moves into the inserting groove 49 corresponding to the inserting groove, the inserting plate 48 limits the rotating disc 2, when the position of the display screen body 16 needs to be adjusted, the moving block 47 is pushed manually in the reverse direction, the moving block 47 drives the inserting plate 48 to be separated from the inserting groove 49, and then the rotating disc 2 is rotated manually.

Specifically, a push rod 50 is vertically arranged on the rotating disc 2, and a rubber sleeve 51 is arranged at the top end of the push rod 50; the rotating disc 2 is easily rotated by manually holding the rubber sleeve 51 and then moving the push rod 50.

The utility model discloses a theory of operation: when the angle of the display screen body 16 needs to be adjusted, the electric push rod 33 drives the push plate 32 to move, the push plate 32 drives the slide block 30 to slide on the slide rail 29, the slide block 30 drives the adjusting rack 31 to move, the adjusting rack 31 drives the arc gear 27 to rotate, the arc gear 27 drives the adjusting handle 26 to rotate, the adjusting handle 26 drives the adjusting shaft 14 to rotate, the adjusting shaft 14 drives the display screen body 16 to rotate to a proper angle, the electric push rod 33 drives the adjusting rack 31 to move forwards or backwards so as to adjust the angle of the display screen body 16 within a certain range, when the position of the display screen body 16 needs to be adjusted, only the rotating disc 2 needs to be manually rotated, the rotating disc 2 drives the display screen body 16 to rotate to a proper position, the whole device does not need to be manually moved to be adjusted, and the adjustment is very convenient, the four self-locking universal wheels 20 facilitate manual operation of moving the whole device to a dust raising monitoring place, the two supporting assemblies 18 stably support the moving plate 1, so that the stability of the whole equipment is improved, and the phenomenon of toppling is prevented.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides a movable raise dust monitoring facilities for building site which characterized in that: comprises a movable plate (1), a rotating disc (2), a fixed plate (3), a bearing sleeve (4), a lifting block (5), a lifting rack (6), a lifting adjusting component (7), a mounting column (8), a sliding sleeve (9), a locking column (10), a sleeve (11), a connecting column (12), a U-shaped frame (13), an adjusting shaft (14), a fixed frame (15), a display screen body (16), an angle adjusting component (17), two supporting components (18), four sliding columns (19) and four self-locking universal wheels (20), wherein the top of the movable plate (1) is provided with an annular sliding groove (21), the four sliding columns (19) are slidably mounted in the annular sliding groove (21), the top ends of the four sliding columns (19) extend to the upper part of the top of the movable plate (1), the rotating disc (2) is fixedly connected with the tops of the four sliding columns (19), the fixed plate (3) is arranged at the top of the rotating disc (2), the bearing sleeve (4) is vertically arranged on the fixed plate (3), the side wall of the bearing sleeve (4) is provided with an opening (22) communicated with the inside of the bearing sleeve, the lifting block (5) is slidably arranged in the bearing sleeve (4), the lifting rack (6) is arranged at the opening (22), the lifting rack (6) is fixedly connected with the outer wall of the lifting block (5), the lifting adjusting component (7) is arranged on the outer wall of the bearing sleeve (4), the mounting column (8) is vertically arranged at the top of the lifting block (5), the sliding sleeve (9) is sleeved on the mounting column (8), the sliding sleeve (9) is in sliding fit with the mounting column (8), the locking column (10) is in threaded connection with the sliding sleeve (9), and the tail end of the locking column (10) is abutted against the mounting column (8), sleeve (11) level sets up on the outer wall of slip cap (9), spliced pole (12) slidable mounting is in sleeve (11), be equipped with through-hole (23) on sleeve (11), be equipped with locating hole (24) that a plurality of equidistant setting set up on spliced pole (12), be equipped with in through-hole (23) with locating hole (24) spiro union positioning bolt (25), the tip of sleeve (11) is kept away from in spliced pole (12) is installed in U type frame (13), regulating spindle (14) rotate and install in U type frame (13) to the one end of regulating spindle (14) extends to the outside of U type frame (13), install on regulating spindle (14) fixed frame (15), display screen body (16) are installed on fixed frame (15), angle adjusting part (17) are installed and are extended to the outside one end of U type frame (13) in regulating spindle (14), the two supporting assemblies (18) are symmetrically arranged on the moving plate (1), and the four self-locking universal wheels (20) are distributed at the bottom of the moving plate (1) in a rectangular shape.

2. A portable fugitive dust monitoring apparatus for a construction site as claimed in claim 1, wherein: the angle adjusting assembly (17) comprises an adjusting handle (26), an arc-shaped gear (27), an L-shaped plate (28), a sliding rail (29), a sliding block (30), an adjusting rack (31), a pushing plate (32) and an electric push rod (33), wherein the adjusting handle (26) is installed at one end of an adjusting shaft (14) extending to the outside of the U-shaped frame (13), the arc-shaped gear (27) is installed at the bottom of the adjusting handle (26), the L-shaped plate (28) is fixedly connected with the bottom of the U-shaped frame (13), the sliding rail (29) is horizontally arranged on the L-shaped plate (28), the sliding block (30) is slidably installed on the sliding rail (29), the adjusting rack (31) is horizontally arranged at the top of the sliding block (30), the adjusting rack (31) is meshed with the arc-shaped gear (27), the pushing plate (32) is fixedly connected with the outer wall of the sliding block (30), and the electric push rod (33) is horizontally arranged on the L-shaped plate (28), and the output end of the electric push rod (33) is fixedly connected with the push plate (32).

3. A portable fugitive dust monitoring apparatus for a construction site as claimed in claim 1, wherein: the lifting adjusting component (7) comprises an adjusting seat (34), a rotating shaft (35), a lifting gear (36), a rotating handle (37) and a limiting plate (38), the adjusting seat (34) is arranged on the outer wall of the bearing sleeve (4), the rotating shaft (35) is rotatably arranged in the adjusting seat (34), one end of the rotating shaft (35) extends to the outside of the adjusting seat (34), the lifting gear (36) is arranged on the rotating shaft (35) and meshed with a lifting rack (6), the rotating handle (37) and the rotating shaft (35) extend to one end of the outside of the adjusting seat (34) for fixed connection, the limiting plate (38) is arranged on the outer wall of the bearing sleeve (4), a limiting hole (39) is arranged on the limiting plate (38), a plurality of mounting holes (40) are arranged around the circle center at equal intervals are arranged on the rotating handle (37), the rotating handle (37) is also provided with a limiting bolt (41) which penetrates through the mounting hole (40) and is in threaded connection with the limiting hole (39).

4. A portable fugitive dust monitoring apparatus for a construction site as claimed in claim 1, wherein: every supporting component (18) all includes swivel nut (42), screw rod (43), backup pad (44) and handle (45), swivel nut (42) is vertical to be set up on movable plate (1), screw rod (43) set up in swivel nut (42) to screw rod (43) and swivel nut (42) screw-thread fit, the bottom of screw rod (43) extends to the bottom below of movable plate (1), the bottom fixed connection of backup pad (44) and screw rod (43), the top fixed connection of handle (45) and screw rod (43).

5. A portable fugitive dust monitoring apparatus for a construction site as claimed in claim 1, wherein: the top of movable plate (1) is equipped with guide rail (46), slidable mounting has movable block (47) on guide rail (46), the top of movable block (47) is equipped with picture peg (48), the edge of rolling disc (2) is equipped with slot (49) that a plurality of was spared its centre of a circle equidistant setting.

6. A portable fugitive dust monitoring apparatus for a construction site as claimed in claim 1, wherein: a push rod (50) is vertically arranged on the rotating disc (2), and a rubber sleeve (51) is arranged at the top end of the push rod (50).