CN217180960U

CN217180960U - Engineering construction site monitoring devices

Info

Publication number: CN217180960U
Application number: CN202220646395.2U
Authority: CN
Inventors: 施海; 岑忠; 钱晔
Original assignee: Anhui Xingding Construction Co ltd
Current assignee: Anhui Xingding Construction Co ltd
Priority date: 2022-03-23
Filing date: 2022-03-23
Publication date: 2022-08-12
Anticipated expiration: 2032-03-23

Abstract

The application relates to an engineering construction site monitoring device which is applied to the field of construction monitoring and comprises a mounting plate, wherein the mounting plate is fixed on a wall surface through a fixing mechanism and extends towards a direction far away from the wall surface perpendicular to the wall surface; a connecting rod is vertically fixed on one surface of the mounting plate, which faces away from the fixing mechanism, an air inlet pipe is rotatably connected to one end of the connecting rod, which is far away from the mounting plate, and the axis of the air inlet pipe is vertical to the connecting rod; the outer wall of the air inlet pipe is vertically fixed with two air deflectors located on the same vertical surface, the air deflectors are bent towards the direction far away from the air inlet pipe, the air deflectors are arranged in an axisymmetric mode by taking the central axis of the air inlet pipe as the axis, and monitoring components used for monitoring the air speed and the dust are further arranged in the air inlet pipe. The method and the device have the effect of monitoring the high-altitude construction environment.

Description

Engineering construction site monitoring devices

Technical Field

The application relates to the technical field of construction monitoring, in particular to a monitoring device for an engineering construction site.

Background

The engineering construction monitoring means that a monitoring instrument is adopted to monitor various control indexes of key parts in the engineering construction process, and an alarm is given when a monitoring value is close to a control value to ensure the safety of construction and can also be used for checking whether the construction process is reasonable or not.

When a constructor carries out high-altitude operation, the constructor is greatly influenced by the wind direction, the wind speed and the dust flying of the nearby environment, so monitoring is needed.

In view of the above-mentioned related technologies, the inventor believes that the composite instrument is placed on the ground, and the ground is different from the high altitude, so that it is difficult for a constructor to judge whether the wind direction, the wind speed and the raise dust index at the high altitude meet the construction conditions.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that constructors are difficult to monitor the high-altitude construction environment, the application provides an engineering construction site monitoring device.

The application provides a project construction site monitoring devices adopts following technical scheme:

the engineering construction site monitoring device comprises a mounting plate, wherein the mounting plate is fixed on a wall surface through a fixing mechanism, and the mounting plate extends in a direction which is perpendicular to the wall surface and far away from the wall surface;

a connecting rod is vertically fixed on one surface of the mounting plate, which is opposite to the fixing mechanism, an air inlet pipe is rotatably connected to one end, which is far away from the mounting plate, of the connecting rod, and the axis of the air inlet pipe is vertical to the connecting rod;

the air inlet pipe is characterized in that two air deflectors located on the same vertical surface are vertically fixed on the outer wall of the air inlet pipe, the air deflectors are bent towards the direction far away from the air inlet pipe, the air deflectors are arranged in an axisymmetric mode with the central axis of the air inlet pipe, and monitoring components used for monitoring air speed and dust are further arranged in the air inlet pipe.

By adopting the technical scheme, the mounting plate is fixed on the wall surface by the fixing mechanism, the air inlet pipe is fixed on the mounting plate through the connecting rod, the air inlet pipe is rotatably connected to the connecting rod, and the axis of the air inlet pipe is perpendicular to the connecting rod, so that the air inlet pipe can rotate by taking the axis of the connecting rod as an axis. The air deflector with an angle is fixed on the outer wall of the air inlet pipe, so that the air deflector drives the air inlet pipe to rotate along with the wind direction under the driving of wind power so as to monitor the high-altitude wind direction, and the air inlet pipe can enable the opening to face the direction from which wind blows so as to conveniently monitor the wind speed and the raised dust. The monitoring assembly monitors wind speed and raise dust, and can be convenient for constructors to monitor the construction environment at high altitude, so that the method of monitoring the construction environment by using a composite instrument on the ground is replaced, the difference between the ground construction environment and the high-altitude construction environment is reduced, and the condition that whether the wind direction, the wind speed and the raise dust index of the high-altitude construction environment meet the construction condition or not is difficult to determine by the constructors.

Optionally, the fixing mechanism includes electric putter, electric putter detachable fixes on the mounting panel, electric putter's output shaft is kept away from the one end of mounting panel is rotated and is connected with the extension post, be equipped with the holder on the extension post, be equipped with the fixed column of reserving on the wall just fixed column snap-on is on the wall, the holder is in the centre gripping is in under electric putter's the drive on the fixed column.

Through adopting above-mentioned technical scheme, when not carrying out high altitude construction, demolish electric putter and directly place the mounting panel subaerial and can monitor ground construction environment's wind direction, wind speed and raise dust index, this makes this monitoring devices can be used to the construction environment of difference and monitors. When carrying out high altitude construction, install electric putter on the mounting panel, electric putter drive holder centre gripping is on the fixed column, thereby the mounting panel supports to paste on the wall to fix this monitoring devices firmly on the wall and monitor the construction environment of high altitude to whether convenient confirm wind direction, wind speed and raise dust index satisfy high altitude construction condition.

Optionally, the holder includes a pair of clamping jaw, the clamping jaw all rotates to be connected extend the post and keep away from electric putter's one end, just the clamping jaw with the axis that extends the post sets up as the axial symmetry, it is connected with the transfer line to rotate on the clamping jaw, the transfer line is kept away from the one end of clamping jaw is rotated and is connected electric putter is last, electric putter passes through the transfer line drive the clamping jaw snatchs or opens.

By adopting the technical scheme, the transmission rod is connected between the clamping jaw and the electric push rod, the transmission rod is rotationally connected with the clamping jaw and the electric push rod, and when the output shaft of the electric push rod extends outwards, the transmission rod limits the clamping jaw to open the two clamping jaws; when electric putter's output shaft withdrawed, the driving lever pushed away the clamping jaw for two clamping jaws are closed, thereby carry out the centre gripping to the fixed column, fix this monitoring devices on the wall in order to monitor firmly. This makes this monitoring devices's dismouting have the convenience, reducible constructor's intensity of labour, is convenient for monitor fast.

Optionally, connecting pieces are fixed on two sides of the electric push rod, and one end, far away from the clamping jaw, of the transmission rod is detachably fixed in the connecting pieces;

the extension post includes connecting portion and clamping part, connecting portion rotate to be connected electric putter is last, the clamping jaw all rotates to be connected on the clamping part, the clamping part is kept away from the one end of clamping jaw is equipped with the external screw thread, connecting portion are kept away from electric putter's one end seted up with the screw hole that the external screw thread corresponds, the clamping part passes through the external screw thread is in the screw hole.

Through adopting above-mentioned technical scheme, transfer line detachable fixes in the connecting piece, and the clamping part passes through external screw thread detachable and connects in the screwed hole, and this makes this monitoring devices of clamping part, transfer line and clamping jaw detachable in order to change to make the clamping part centre gripping on not unidimensional fixed column firmly, and then be applicable to different construction environment in order to monitor, be favorable to promoting this monitoring devices's adaptability.

Optionally, the connecting piece includes fixed part and movable part, gu fixed ring fixes on electric putter's the lateral wall, the movable part rotates to be connected on the fixed part, the movable part with the fixed part forms closed ring.

Through adopting above-mentioned technical scheme, the buckle is constituteed with the movable part to the fixed part to the movable part is pressed in the movable part changes over to the fixed part, thereby form the breach between fixed part and movable part, put into the fixed part with the transfer line after, the movable part forms closed ring with the fixed part, in order to carry on spacingly to the transfer line, and the transfer line rotates to be connected in fixed part and movable part, make the transfer line can turn into the linear reciprocating motion of electric putter into the motion that opens and shuts of clamping jaw, fix on the fixed column with the centre gripping, this easy dismounting that also makes the transfer line has the convenience.

Optionally, the inner sides of the clamping jaws are provided with anti-slip pads, and the clamping jaws tightly support the anti-slip pads on the fixing columns.

Through adopting above-mentioned technical scheme, electric putter drive clamping jaw centre gripping back on the fixed column, the clamping jaw supports the slipmat tightly on the fixed column, has increased the frictional force between clamping jaw and the fixed column, has promoted this monitoring devices's fixed stability when monitoring, and then promotes monitoring results's accuracy.

Optionally, the monitoring assembly comprises a reflective wind wheel and an optical transceiver assembly, the optical transceiver assembly is fixed on the inner wall of the air inlet pipe, and a light emitting part of the optical transceiver assembly faces the reflective wind wheel.

By adopting the technical scheme, after wind blows into the air inlet pipe, the reflective wind wheel rotates under the driving of wind power, the rotating speed of the reflective wind wheel changes along with the wind speed, the light receiving and sending assembly sends light rays onto the reflective wind wheel, the light rays are sent out from gaps among fan blades of the reflective wind wheel and received by the light receiving and sending assembly, and the fan blades of the reflective wind wheel regularly shield the light rays when the reflective wind wheel rotates, namely, the higher the wind speed is, the higher the frequency of shielding the light rays by the fan blades of the reflective wind wheel is, so that the wind speed is monitored; and the light penetrates through the air after being emitted and is received by the light receiving and emitting assembly, the light is weakened when the dust in the air is more, and the dust raising index can be monitored according to the strength of the light. Adopt a set of light to send out the subassembly and can monitor the raise dust index, the cooperation reflection of light wind wheel can monitor the wind speed in the lump, reducible adoption multiunit individual monitoring instrument monitors and leads to the higher condition of energy consumption.

Optionally, the optical transceiver subassembly includes light source and photoelectric sensor, the light source with photoelectric sensor all fixes on the inner wall of air-supply line, reflection of light wind wheel is located between light source and the photoelectric sensor, the light source to reflection of light wind wheel transmitted light.

Through adopting above-mentioned technical scheme, light sends towards reflection of light wind wheel by the light source to receive by photoelectric sensor, light source and photoelectric sensor locate the both sides of reflection of light wind wheel promptly, and this makes reducible light reflect to photoelectric sensor by the flabellum of reflection of light wind wheel when monitoring and leads to the unsafe condition of photoelectric sensor's monitoring result, thereby promotes the monitoring accuracy of monitoring subassembly.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the monitoring assembly is arranged in the air inlet pipe, the air inlet pipe is arranged on the mounting plate through the connecting rod, the mounting plate is fixed on a reserved fixing column on the wall surface through the fixing mechanism, when wind blows through the air inlet pipe, the wind deflector guides the wind, and the air inlet pipe enables an opening at one end to face the direction from which the wind blows so as to monitor the wind direction, then the monitoring assembly monitors the wind speed and the flying dust so as to replace a means of monitoring by a composite instrument on the ground, so that a constructor can monitor the construction environment in the high air, and the condition that the constructor misjudges the construction environment in the high air through the monitoring of the construction environment on the ground is reduced;

2. electric putter provides the power supply for fixed establishment, and the transfer line then turns into the opening and shutting motion of a pair of clamping jaw with electric putter's output shaft's reciprocal linear motion to carry out or relieve the clamping jaw to the fixed column comparatively conveniently, make the operation have the convenience, can promote monitoring efficiency. The electric push rod is detachable, and the clamping jaw can be replaced, so that the monitoring device can be applied to more monitoring environments, and the adaptability of the monitoring device is improved;

3. the subassembly is received to light that sends out is constituteed to light source and photoelectric sensor, light is jetted out by the light source and is received by photoelectric sensor, when light passed the space between light source and the photoelectric sensor, the raise dust is then the bigger the light intensity that conveys from photoelectric sensor is weaker, monitor the raise dust index from this, reflection of light wind wheel then sets up between light source and photoelectric sensor, the wind speed is the bigger the rotational speed of reflection of light wind wheel is faster, the flabellum of reflection of light wind wheel also accelerates the frequency of sheltering from of light, monitor the wind speed from this, monitor two parameters with a set of measuring component, reducible adoption multiunit individual monitoring instrument monitors and leads to the higher condition of energy consumption.

Drawings

Fig. 1 is a schematic view of a monitoring device in an embodiment of the present application.

Fig. 2 is a front view of a monitoring device in an embodiment of the present application.

Fig. 3 is an exploded view of the securing mechanism in the embodiment of the present application.

Fig. 4 is an enlarged view of a portion a in the embodiment of the present application.

FIG. 5 is a schematic view of a detection assembly in an embodiment of the present application.

Reference numerals: 1. a wall surface; 2. fixing the column; 3. mounting a plate; 4. a fixing mechanism; 41. an electric push rod; 411. a ball head; 42. extending the column; 421. a connecting portion; 4211. a threaded hole; 422. a clamping portion; 4221. an external thread; 423. a ball seat; 43. a clamping member; 431. a clamping jaw; 432. a transmission rod; 5. a connecting rod; 6. an air inlet pipe; 7. an air deflector; 8. a monitoring component; 81. a reflective wind wheel; 82. a light receiving and emitting assembly; 821. a light source; 822. a photosensor; 9. a connecting member; 91. a fixed part; 92. a movable portion; 10. a non-slip mat.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses engineering construction site monitoring devices. Referring to fig. 1 and 2, the engineering construction site monitoring device comprises a mounting plate 3, wherein one side of the mounting plate 3 is provided with a fixing mechanism 4, a connecting rod 5 is embedded in a wall surface 1 of a construction site, the connecting rod 5 is vertically fixed on the wall surface 1, and the fixing mechanism 4 is fixed with the connecting rod 5 so as to enable the mounting plate 3 to abut against the wall surface 1. Specifically, fixed establishment 4 includes electric putter 41, and electric putter 41 passes through bolt detachable to be fixed on mounting panel 3, and the unscrew bolt can be pulled down electric putter 41, places mounting panel 3 subaerial can monitor the job site environment on ground. The output shaft of the electric push rod 41 is perpendicular to the mounting plate 3 and the output shaft of the electric push rod 41 extends in a direction away from the mounting plate 3.

Referring to fig. 3, one end of the output shaft of the electric push rod 41, which is far away from the mounting plate 3, is rotatably connected with an extension column 42, one end of the extension column 42, which is close to the electric push rod 41, is provided with a ball seat 423, a ball groove is formed in the ball seat 423, a ball head 411 is rotatably arranged in the ball groove, a round connector is formed in the end surface of the ball seat 423, which faces away from the extension column 42, and the output shaft of the electric push rod 41 penetrates through the connector to be fixed on the outer wall of the ball head 411, which is arranged at the connector.

Referring to fig. 2 and 3, one end of the extending column 42 away from the electric push rod 41 is provided with a pair of clamping jaws 431, the clamping jaws 431 are symmetrically hinged on the outer wall of the extending column 42 by taking the central axis of the extending column 42 as an axis, and the two clamping jaws 431 can be closed to clamp the fixing column 2 in the two clamping jaws 431. All articulated on the clamping jaw 431 have a transfer line 432, the one end that the transfer line 432 kept away from the clamping jaw 431 then detachable connects on electric putter 41, specifically, the axis of using electric putter 41 output shaft is fixed with a pair of connecting piece 9 as the axial symmetry on the outer wall of electric putter 41, and the one end that the transfer line 432 kept away from the clamping jaw 431 rotates and connects in connecting piece 9, the inboard of clamping jaw 431 still is equipped with slipmat 10. When the output shaft of the electric push rod 41 extends out, the transmission rod 432 limits and pulls the clamping jaws 431, so that the clamping jaws 431 rotate towards the direction far away from the extension column 42 by taking the connection position of the extension column 42 and the clamping jaws 431 as the center of circle, and the two clamping jaws 431 are opened; when the output shaft of the electric push rod 41 retracts, the output shaft of the electric push rod 41 limits and pulls the clamping jaw 431, so that the clamping jaw 431 rotates towards the direction close to the extending column 42 by taking the connecting position of the extending column 42 and the clamping jaw 431 as a circle center, and the two clamping jaws 431 are closed. The transfer line 432 turns into the reciprocating linear motion of electric putter 41's output shaft into the motion that opens and shuts of a pair of clamping jaw 431 to make things convenient for two clamping jaws 431 to centre gripping fixed column 2 between, the slipmat 10 is supported tightly between clamping jaw 431 and fixed column 2 by clamping jaw 431 this moment, fix on fixed column 2 firmly, and the slipmat 10 still can reduce the influence that the construction vibrations produced clamping jaw 431, and then make mounting panel 3 support steadily on wall 1, and this monitoring devices's dismouting simple operation, can effectively promote work efficiency.

Referring to fig. 2 and 4, the connecting member 9 includes two fixing portions 91 and a movable portion 92, the two fixing portions 91 are symmetrically fixed on the outer wall of the electric push rod 41, the movable portion 92 is connected to the fixing portions 91 through a compression spring, and when the movable portion 92 is not stressed, the movable portion 92 and the fixing portions 91 form a closed loop. When the movable portion 92 is pressed, the pressure spring is stressed to compress so that one end, away from the joint of the movable portion 92 and the fixing portion 91, of the movable portion 92 rotates and extends into the fixing portion 91, and when the movable portion 92 stops being pressed, the pressure spring exerts a force on the movable portion 92 for restoring elastic deformation so that the movable portion 92 rotates to form a closed ring with the fixing portion 91. One end, far away from the clamping jaw 431, of the transmission rod 432 is provided with a clamping ring, the transmission rod 432 can be detachably connected with the connecting piece 9 through the clamping ring, the clamping ring is convenient to disassemble and assemble, meanwhile, the transmission rod 432 is rotatably connected with the electric push rod 41 through the clamping ring and the connecting piece 9, the transmission rod 432 can stretch out and draw back along with the output shaft of the electric push rod 41 to change the angle, and then the opening and closing of the clamping jaw 431 are controlled.

Extension post 42 comprises connecting portion 421 and clamping part 422, connecting portion 421 and clamping part 422 are the cylinder, connecting portion 421 and bulb 411 fixed connection, clamping part 422 then detachable is fixed in one of connecting portion 421 keep away from electric putter 41 and is served, clamping part 422 sets up with the connecting portion 421 is coaxial, the one end that clamping jaw 431 was kept away from to clamping part 422 is provided with external screw thread 4221, the terminal surface of the one end that electric putter 41 was kept away from to connecting portion 421 is seted up with the corresponding screw hole 4211 of external screw thread 4221, clamping part 422 passes through external screw thread 4221 detachable threaded connection in screw hole 4211. When the clamping jaw 431 needs to be detached or replaced, the movable part 92 is pressed to take the transmission rod 432 down, the clamping part 422 is screwed out of the threaded hole 4211, the clamping jaw 431 and the transmission rod 432 can be detached, so that detachment or replacement is convenient, the monitoring device can be suitable for different construction environments for monitoring, and the monitoring device has strong adaptability and is beneficial to improving monitoring comprehensiveness of the monitoring device.

Referring to fig. 1, a connecting rod 5 is vertically fixed on a surface of the mounting plate 3 opposite to the electric push rod 41, and the connecting rod 5 is fixed in the middle of the mounting plate 3. The one end that mounting panel 3 was kept away from to connecting rod 5 is rotated and is connected with air-supply line 6, and air-supply line 6 has open-ended pipe for both ends, and air-supply line 6's axis and connecting rod 5 are mutually perpendicular, and when mounting panel 3 was fixed mutually with fixed column 2 through fixed establishment 4, a side end face of mounting panel 3 supported and pasted on wall 1, and mounting panel 3 was the level this moment, and air-supply line 6 then can rotate in the horizontal direction. A group of air deflectors 7 are integrally formed on the outer wall of the air inlet pipe 6, the air deflectors 7 extend towards the direction far away from the air inlet pipe 6, the air deflectors 7 are bent towards the direction far away from the air inlet pipe 6, the two air deflectors 7 are coaxially and symmetrically arranged by taking the central axis of the air inlet pipe 6 as a coaxial line, and the air deflectors 7 are perpendicular to the air inlet pipe 6, namely the air deflectors 7 are arranged at the upper end and the lower end of the whole air inlet pipe 6. When wind blows over the air inlet pipe 6, the air deflector 7 guides the wind because the air deflector 7 is bent towards the direction far away from the air inlet pipe 6, and each surface of the air deflector 7 is affected differently by the resistance of the wind, so that the air deflector drives the air inlet pipe 6 to rotate, the opening at one end of the air inlet pipe 6 faces the direction from which the wind blows, and the wind direction is monitored.

Referring to fig. 5, a monitoring assembly 8 is arranged in the air inlet pipe 6, specifically, the monitoring assembly 8 includes a reflective wind wheel 81 and a light receiving and sending assembly 82, wherein the reflective wind wheel 81 is installed in the air inlet pipe 6 through a bracket, and the reflective wind wheel 81 is perpendicular to a central axis of the air inlet pipe 6, when wind enters the air inlet pipe 6 from an opening of the air inlet pipe 6, the reflective wind wheel 81 rotates under the action of wind power, and the rotation speed of the reflective wind wheel 81 increases with the increase of the wind speed. The light receiving and emitting assembly 82 includes a light source 821 and a photoelectric sensor 822, the light source 821 is a laser emitter, the light source 821 and the photoelectric sensor 822 are both fixed on the inner wall of the air inlet pipe 6, the light source 821 and the photoelectric sensor 822 are disposed on both sides of the reflective wind wheel 81, and a light emitting portion of the light source 821 faces a light absorbing portion of the photoelectric sensor 822. The blades of the reflective wind wheel 81 are provided with reflective coatings, the light source 821 is turned on during monitoring, the light source 821 emits light towards the reflective wind wheel 81 and the photoelectric sensor 822, the light passes through a gap between adjacent blades of the reflective wind wheel 81 and is emitted into the photoelectric sensor 822 and is intermittently blocked by the blades of the reflective wind wheel 81, when the wind speed is low, the rotating speed of the reflective wind wheel 81 is low, and the frequency of the light received by the photoelectric sensor 822 is low; when the wind speed is high, the rotating speed of the wind reflecting wheel 81 is high, and the frequency of light received by the photoelectric sensor 822 is high, so that the wind speed can be monitored.

Referring to fig. 5, the flying dust enters the air inlet duct 6 with the wind, the light passes through the flying dust in the air when passing through the space between the light source 821 and the photoelectric sensor 822, and the more the flying dust is, the more the scattering of the light is generated, the intensity of the light received by the photoelectric sensor 822 is reduced, so that the flying dust index is monitored. On one hand, the light source 821 and the photoelectric sensor 822 are arranged on the reflective wind wheel 81, so that the influence of reflected or refracted light rays on the monitoring result can be reduced, and the accuracy of the monitoring result is improved; on the other hand, the wind speed and the dust are monitored by the group of monitoring components 8 instead of respectively adopting different instruments for monitoring, so that the energy consumption can be reduced, and the effects of energy conservation and emission reduction are achieved.

The implementation principle of the engineering construction site monitoring device in the embodiment of the application is as follows: the clamping jaw 431 is selected according to a fixed column 2 pre-buried on a wall surface 1, the clamping part 422 is connected into a threaded hole 4211 through an external thread 4221, a transmission rod 432 is clamped into a connecting piece 9, then an electric push rod 41 is started, the clamping jaw 431 is clamped on the fixed column 2, the side end face of the mounting plate 3 is abutted to the wall surface 1, when wind blows, an air deflector 7 drives an air inlet pipe 6 to rotate, so that the wind direction is detected, a reflecting wind wheel 81 rotates under the driving of wind after the wind enters the air inlet pipe 6, then a light source 821 is turned on, the frequency and the intensity of light received by a photoelectric sensor 822 are read, the wind speed and the raised dust can be monitored, and the high-altitude construction environment is monitored.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an engineering construction site monitoring devices which characterized in that: the wall surface fixing device comprises a mounting plate (3), wherein the mounting plate (3) is fixed on a wall surface (1) through a fixing mechanism (4), and the mounting plate (3) extends towards a direction far away from the wall surface (1) and is perpendicular to the wall surface (1);

a connecting rod (5) is vertically fixed on one surface of the mounting plate (3) back to the fixing mechanism (4), an air inlet pipe (6) is rotatably connected to one end, far away from the mounting plate (3), of the connecting rod (5), and the axis of the air inlet pipe (6) is perpendicular to the connecting rod (5);

the air inlet pipe is characterized in that two air deflectors (7) located on the same vertical surface are vertically fixed on the outer wall of the air inlet pipe (6), the air deflectors (7) are bent towards the direction far away from the air inlet pipe (6), the air deflectors (7) are arranged in an axisymmetric mode with the central axis of the air inlet pipe (6), and monitoring components (8) used for monitoring air speed and raising dust are further arranged in the air inlet pipe (6).

2. The engineering construction site monitoring device according to claim 1, wherein: fixing mechanism (4) include electric putter (41), electric putter (41) detachable is fixed on mounting panel (3), the output shaft of electric putter (41) is kept away from the one end of mounting panel (3) is rotated and is connected with extension post (42), be equipped with holder (43) on extension post (42), be equipped with on wall (1) reserved fixed column (2) just fixed column (2) snap-on wall (1), holder (43) are in the centre gripping is in under the drive of electric putter (41) on fixed column (2).

3. The engineering construction site monitoring device according to claim 2, wherein: holder (43) include a pair of clamping jaw (431), clamping jaw (431) all rotate to be connected extend post (42) and keep away from the one end of electric putter (41), just clamping jaw (431) with the axis that extends post (42) sets up for the axisymmetric, it is connected with transfer line (432) to rotate on clamping jaw (431), transfer line (432) are kept away from the one end of clamping jaw (431) is rotated and is connected on electric putter (41), electric putter (41) pass through transfer line (432) drive clamping jaw (431) are snatched or are opened.

4. The engineering construction site monitoring device according to claim 3, wherein: connecting pieces (9) are fixed on two sides of the electric push rod (41), and one end, far away from the clamping jaw (431), of the transmission rod (432) is detachably fixed in the connecting pieces (9);

extend post (42) including connecting portion (421) and clamping part (422), connecting portion (421) rotate to be connected on electric putter (41), clamping jaw (431) all rotate to be connected on clamping part (422), clamping part (422) are kept away from the one end of clamping jaw (431) is equipped with external screw thread (4221), connecting portion (421) are kept away from electric putter's (41) one end seted up with screw hole (4211) that external screw thread (4221) correspond, clamping part (422) pass through external screw thread (4221) are connected in screw hole (4211).

5. The engineering construction site monitoring device according to claim 4, wherein: the connecting piece (9) comprises a fixing part (91) and a moving part (92), the fixing part (91) is fixed on the side wall of the electric push rod (41), the moving part (92) is rotatably connected on the fixing part (91), and the moving part (92) and the fixing part (91) form a closed ring.

6. The engineering construction site monitoring device according to claim 3, wherein: the inner sides of the clamping jaws (431) are provided with anti-skid pads (10), and the clamping jaws (431) tightly support the anti-skid pads (10) on the fixing columns (2).

7. The engineering construction site monitoring device according to claim 1, wherein: monitoring subassembly (8) send out subassembly (82) including reflection of light wind wheel (81) and light, it fixes to send out subassembly (82) to send out on the inner wall of air-supply line (6), the luminous part orientation that the subassembly (82) was sent out in the light reflection of light wind wheel (81).

8. The engineering construction site monitoring device according to claim 7, wherein: the light receiving and sending assembly (82) comprises a light source (821) and a photoelectric sensor (822), the light source (821) and the photoelectric sensor (822) are fixed on the inner wall of the air inlet pipe (6), the reflective wind wheel (81) is arranged between the light source (821) and the photoelectric sensor (822), and the light source (821) emits light rays to the reflective wind wheel (81).