Measuring equipment for constructional engineering

Abstract

The invention relates to the technical field of constructional engineering environment monitoring, and discloses constructional engineering measuring equipment which comprises a bottom compression type supporting structure, an annular buffer type liquid atomization structure, a telescopic press-in type liquid compression structure and an eccentric rotating structure. According to the measuring equipment for constructional engineering, dust in flowing air can be detected in time, and in the detection process, the flowing dust can be subjected to a timely dust falling effect under the attachment of atomized liquid, so that the dust detection function and the dust falling function can be achieved, and the practicability is high. According to the dust falling device, the phenomenon of poor detection precision caused by dust accumulation can be effectively reduced, then the dust detection precision is improved, in addition, kinetic energy used for driving gas to flow directionally and kinetic energy used for generating an atomization effect on liquid in the device both come from one driving motor, and therefore the kinetic energy utilization rate of the driving motor is improved.

Description

Technical Field

[0001] The invention relates to the technical field of construction engineering environment monitoring, in particular to a measurement device for construction engineering. Background Art

[0002] Environmental testing is to track changes in environmental quality and determine the level of environmental quality by testing the content and emissions of various substances that have an impact on humans and the environment. This provides a basis and guarantee for environmental management, pollution control and other work. When testing construction sites, it is necessary to test the noise during construction and the dust concentration in the air.

[0003] To this end, a Chinese patent with publication number "CN113819943A" discloses "construction engineering environment detection equipment", whose main structure includes a support base and an anti-skid base arranged at the bottom of the support base, a battery box is arranged inside the support base, and a detection frame is arranged inside the battery box, and a mobile auxiliary wheel is fixedly installed on the top of the support base, and a detection frame is sleeved on the mobile auxiliary wheel, and a plurality of dust detection boxes are arranged on the detection frame, and a second ventilation window and a first ventilation window are arranged on the top and side of the dust detection box, and dustproof nets are bonded to the inner sides of the first ventilation window and the second ventilation window. The above-mentioned construction engineering environment detection equipment is provided with mobile auxiliary wheels on the top of the support base, and when it needs to be moved, the device can be placed on its side and the mobile auxiliary wheels can be grounded, thereby changing the process of transportation into rolling, and the device can be moved conveniently and quickly, and the diameter of the mobile auxiliary wheels is larger than the diameter of the device itself, so that it can be quickly moved in the complex environment of the construction site, and the operation is simpler and more convenient.

[0004] From the above description, we can know that when the above construction project environment detection equipment is working, the dusty air from the outside is sucked into the dust detection box by setting a circulating fan, and then the dust content in the air can be detected. At the same time, the rolling blades on the top of the circulating fan can rotate under the drive of wind, which can increase the discharge of dust and effectively reduce the dust trapped inside the dust detection box. However, since the dust needs to pass through the dust-proof net when flowing inside the dust detection box, and the dust-proof net itself will cause the negative impact of weakening the wind strength after dust accumulation, resulting in poor subsequent wind suction capacity, which affects the dust detection accuracy.

[0005] For another example, a Chinese patent with publication number "CN211346900U" discloses "a construction engineering environment detection device", whose main structure includes a main body, the main body having a bottom plate and several side plates, the bottom plate and the side plates are connected by a positioning shaft to form a first use state and a second use state of the main body; the first use state is that the bottom plate and the side plates are parallel and located in the same plane; the second use state is that the bottom plate and the side plates are vertical to form an internal hollow hexagonal prism; a detection mechanism, the detection mechanism is arranged on the main body and a battery is provided inside the main body to realize the operation of the detection mechanism; the above-mentioned construction engineering environment detection equipment has a variety of detection equipment, which can simultaneously detect the formaldehyde content, dust content, noise content and temperature and humidity monitoring in the indoor environment. At the same time, the device is equipped with a smoke alarm, which can detect the indoor smoke concentration and take fire prevention measures in time.

[0006] In actual work: although the above-mentioned construction engineering environment detection equipment can detect the surrounding dust concentration, its structure and function are too single and cannot play a dust reduction effect on the surrounding dust. Summary of the invention

[0007] In view of the deficiencies in the prior art, the present invention provides a measuring device for construction projects, which can timely detect dust in flowing air. During the detection process, the flowing dust can be timely subjected to dust reduction effect under the attachment of atomized liquid, thereby realizing both the dust detection function and the dust reduction function. The dust reduction can effectively reduce the occurrence of poor detection accuracy caused by dust accumulation, thereby improving the dust detection accuracy. In addition, the kinetic energy used to drive the directional flow of gas and the kinetic energy used to produce an atomization effect on the liquid in the device both come from a drive motor, thereby improving the kinetic energy utilization rate of the drive motor and solving the above-mentioned technical problems.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a measuring device for construction engineering, comprising a longitudinal hollow cylinder, a dust flow chamber with openings at both ends arranged in the center of the longitudinal hollow cylinder, a funnel-shaped air suction port arranged at the top of the dust flow chamber, a main rotating shaft installed in the center of the dust flow chamber through a support rod and a bearing, a fan blade installed at the front end of the main rotating shaft, a dust concentration detection head installed inside the dust flow chamber and capable of detecting the surrounding dust concentration, a concentration display installed outside the longitudinal hollow cylinder and capable of displaying data in the dust concentration detection head, a driving motor fixedly installed on the periphery of one side of the longitudinal hollow cylinder along the longitudinal direction of the longitudinal hollow cylinder, and a skin installed between the rotor of the driving motor and the main rotating shaft. The pulley and the belt also include a bottom compression support structure, which is provided with a central flow chamber for concentrated compression of gas and dust flowing from top to bottom, and a plurality of component mounting holes arranged in an annular array on the circumferential surface in the middle of the central flow chamber; an annular buffer liquid atomization structure, which is provided with an annular air film for generating buffering pressure for the liquid located in the center, and an atomizing nozzle for discharging the liquid in an atomized form; a telescopic pressurized liquid compression structure, which is provided with a piston body for directionally pressing the liquid into the annular buffer liquid atomization structure during reciprocating motion; and an eccentric rotating structure, which is provided with a cylindrical rotating structure for generating an indirect compression function on the piston body when the rotor rotates.

[0009] Preferably, the bottom compression support structure includes a horizontal support base plate, support legs are installed at the bottom edge of the horizontal support base plate, a bottom longitudinal structure with an integrated structure and fixedly connected to the bottom end of the longitudinal hollow cylinder is arranged at the center of the upper end surface of the horizontal support base plate, an annular mounting groove is arranged on the periphery of the circumferential surface of the bottom longitudinal structure, a funnel-shaped flow cavity is arranged at the top center of the bottom longitudinal structure, a central flow cavity extending downward is arranged at the bottom end of the funnel-shaped flow cavity, the circumferential surface of the central flow cavity and the inner side of the annular mounting groove are connected through a plurality of component mounting holes arranged in an annular array, and a medium discharge port for discharging the medium inside the central flow cavity is arranged at the bottom center of the horizontal support base plate.

[0010] Preferably, the upper end of the funnel-shaped flow cavity is connected to the bottom end of the dust flow cavity, and the upper port diameter of the funnel-shaped flow cavity is larger than the lower port diameter thereof.

[0011] Preferably, the annular buffering liquid atomization structure includes an annular hollow body, a central fixing hole clamped in an annular mounting groove is provided at the axial center of the annular hollow body, an annular cavity is provided at the annular solid portion of the annular hollow body, an annular air film is embedded in the annular middle region of the annular cavity, the inner and outer circumferential surfaces of the annular air film divide the annular cavity into an inner annular layer and an outer annular layer, an annular insert body of an integral structure is provided in the annular middle portion of the annular air film, a component insertion hole pointing to the annular insert body is provided on the outer circumferential surface of the annular hollow body, a columnar nozzle of an integral structure extending toward the central fixing hole is provided on the inner annular surface of the annular hollow body, an atomizing nozzle for discharging liquid in an atomized form is installed inside the columnar nozzle, and the columnar nozzle is correspondingly installed inside each component mounting hole.

[0012] Preferably, two ends of the annular air membrane are embedded in the symmetrical end faces of the annular hollow body, and the annular air membrane is made of a rubber material with elastic strength.

[0013] Preferably, the telescopic press-in liquid compression structure includes an arc-shaped mounting plate fixedly mounted on the circumferential side surface of the annular hollow body portion, the outer annular surface of the arc-shaped mounting plate is provided with a horizontal hollow cylinder structure facing the direction of the rotor, the center of the horizontal hollow cylinder structure is provided with a horizontal movable cavity, the horizontal movable cavity is provided with a horizontal limit space at one end close to the arc-shaped mounting plate, the circumferential surface of the arc-shaped mounting plate is provided with an integrated structure and a liquid injection pipeline body for liquid to enter the horizontal limit space, the inner side of the arc-shaped mounting plate is provided with a through-component insertion hole and an annular insert body and a liquid discharge pipeline body connected to the end structure of the horizontal limit space, the end structure of the liquid discharge pipeline body extends into the inner annular layer of the annular cavity, and is provided with a prevention The open end of the liquid discharge pipeline body enters into the annular limiting structure in the outer annular layer of the annular cavity, and the first liquid one-way valve and the second liquid one-way valve are respectively installed inside the liquid injection pipeline body and the liquid discharge pipeline body. The horizontal hollow cylinder structure is provided with a piston body that can move axially along the horizontal activity cavity inside the horizontal activity cavity, and the horizontal activity cavity is provided with a coil spring at one end of the piston body to generate pressure on the piston body toward the rotor, and the other end of the piston body is provided with a telescopic interference rod that passes through the corresponding end structure of the horizontal hollow cylinder structure, and the telescopic interference rod is provided with a spherical placement shell of an integrated structure at one end located outside the horizontal activity cavity, and a ball that can roll inside the spherical placement shell is placed on the concave surface of the spherical placement shell.

[0014] Preferably, the liquid discharge port of the first liquid one-way valve faces the horizontal limiting space, and the liquid discharge port of the second liquid one-way valve faces the liquid discharge pipeline body.

[0015] Preferably, the eccentric rotating structure includes a disc-shaped fixing plate, one end face of the disc-shaped fixing plate is provided with a cylindrical rotating structure of an integrated structure, the middle part of the circumferential side face of the cylindrical rotating structure is provided with an annular groove for clamping the ball part structure, and the other end face of the disc-shaped fixing plate is provided with a rotor fixing groove for fixing and installing the rotor in a direction deviating from the axial center line of the disc-shaped fixing plate.

[0016] Preferably, the arc structure formed by the cross-sectional structure of the annular groove matches the outer surface of the ball, and the depth of the annular groove is smaller than the structural radius of the ball.

[0017] Preferably, when the annular groove rotates, the pressure exerted on the ball can cause the piston body to produce a reciprocating motion state.

[0018] Compared with the prior art, the present invention provides a construction engineering measurement device, which has the following beneficial effects: The measuring equipment for construction engineering can timely detect dust in flowing air. During the detection process, the flowing dust can be timely dust-reduced under the attachment of atomized liquid, thereby realizing both the dust detection function and the dust reduction function. The dust reduction can effectively reduce the occurrence of poor detection accuracy caused by dust accumulation, thereby improving the dust detection accuracy. In addition, the kinetic energy used to drive the directional flow of gas and the kinetic energy used to produce an atomization effect on the liquid in the device both come from a drive motor, thereby improving the kinetic energy utilization rate of the drive motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the full cross-section structure of the present invention; Figure 2 It is a schematic diagram of the full cross-section structure of the bottom compression support structure in the present invention; Figure 3 It is a three-dimensional diagram of the annular buffer liquid atomization structure of the present invention; Figure 4 It is a three-dimensional cross-sectional view of the annular buffer liquid atomization structure of the present invention; Figure 5 It is a three-dimensional diagram of the telescopic press-in liquid compression structure of the present invention; Figure 6 It is a three-dimensional cross-sectional view of the telescopic press-in liquid compression structure of the present invention; Figure 7 It is a three-dimensional diagram of the eccentric rotating structure of the present invention; Figure 8 It is a three-dimensional cross-sectional view of the eccentric rotating structure of the present invention.

[0020] Among them: 1. Longitudinal hollow cylinder; 2. Dust flow cavity; 3. Funnel-shaped air intake port; 4. Support rod; 5. Fan blade; 6. Main rotating shaft; 7. Pulley; 8. Dust concentration detection head; 9. Concentration display; 10. Driving motor; 11. Rotor; 12. Belt; 13. Bottom compression support structure; 131. Horizontal support base plate; 132. Support leg; 133. Bottom longitudinal structure; 134. Annular mounting groove; 135. Funnel-shaped flow cavity; 136. Central flow cavity; 137. Medium discharge port; 138. Component mounting hole; 14. Annular buffer liquid atomization structure; 141. Annular hollow body; 142. Central fixing hole; 143. Annular cavity; 144. Columnar nozzle; 145. Atomizing nozzle; 1 47. Annular air film; 148. Annular insert; 149. Component insertion hole; 15. Telescopic press-in liquid compression structure; 151. Arc-shaped mounting plate; 152. Horizontal hollow cylinder structure; 153. Horizontal movable chamber; 154. Horizontal limiting space; 155. Liquid injection pipeline body; 156. Liquid discharge pipeline body; 157. First liquid one-way valve; 158. Second liquid one-way valve; 159. Annular limiting structure; 1510. Coil spring; 1511. Piston body; 1512. Telescopic resistance rod; 1513. Spherical placement shell; 1514. Ball; 16. Eccentric rotating structure; 161. Disc-shaped fixing plate; 162. Columnar rotating structure; 163. Annular slide groove; 164. Rotor fixing groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1A measuring device for construction engineering, comprising a longitudinal hollow cylinder 1, a dust flow chamber 2 with two ends opened at the center of the longitudinal hollow cylinder 1, a funnel-shaped air inlet 3 arranged at the top of the dust flow chamber 2, a main rotating shaft 6 installed at the center of the dust flow chamber 2 through a support rod 4 and a bearing, a fan blade 5 installed at the front end of the main rotating shaft 6, a dust concentration detection head 8 installed inside the dust flow chamber 2 and capable of detecting the surrounding dust concentration, a concentration display 9 installed outside the longitudinal hollow cylinder 1 and capable of displaying data in the dust concentration detection head 8, a driving motor 10 fixedly installed on the periphery of one side of the longitudinal hollow cylinder 1 along the longitudinal direction of the longitudinal hollow cylinder 1, and a driving motor 10 installed on the driving motor 1 0's rotor 11 and the pulley 7 and belt 12 between the main rotating shaft 6. When the driving motor 10 is started, the rotor 11 rotates rapidly. By controlling the rotation speed of the rotor 11 and the gas driving direction of the fan blade 5, the gas carrying dust flows along the dust flow chamber 2. In the process of dust movement, the dust concentration detection head 8 can detect the surrounding dust concentration. After detecting the specific concentration, the dust concentration detection head 8 can display the specific value of the dust concentration through the concentration display 9. The staff can obtain the specific value by observing the concentration display 9. At the same time, the air and dust can flow downward in a concentrated manner, thereby realizing timely detection of dust in the flowing air.

[0023] In order to achieve centralized compression of the flowing gas and dust, thereby improving the efficiency of dust removal, please refer to Figure 1 and Figure 2 , it is necessary to set up a bottom compression support structure 13, which is provided with a central flow chamber 136 for concentrated compression of the gas and dust flowing from top to bottom, and a plurality of component mounting holes 138 arranged in a ring array on the circumferential surface of the middle part of the central flow chamber 136. When the gas and dust enter the funnel-shaped flow chamber 135, due to the structural characteristics of the funnel-shaped flow chamber 135, the gas and dust will be concentrated and compressed, thereby increasing the dust concentration per unit area and causing the dust to gather. The gathered dust is easier to absorb and reduce dust in large quantities under the action of the atomized liquid, thereby improving the efficiency of dust removal.

[0024] For the specific structure of the bottom compression support structure 13, please refer to Figure 2, comprising a horizontal supporting base plate 131, a supporting leg 132 is installed at the bottom edge of the horizontal supporting base plate 131, a bottom longitudinal structure 133 of an integrated structure fixedly connected to the bottom end of the longitudinal hollow cylinder 1 is arranged at the center of the upper end surface of the horizontal supporting base plate 131, an annular mounting groove 134 is arranged on the periphery of the circumferential surface of the bottom longitudinal structure 133, a funnel-shaped flow chamber 135 is arranged at the center of the top end of the bottom longitudinal structure 133, in order to have the compression function of gas and dust, it is necessary to make the upper end of the funnel-shaped flow chamber 135 connected to the bottom end of the dust flow chamber 2, and the upper port diameter of the funnel-shaped flow chamber 135 is larger than the lower port diameter, the bottom end of the funnel-shaped flow chamber 135 is provided with a central flow chamber 136 extending downward, the circumferential surface of the central flow chamber 136 and the inner side of the annular mounting groove 134 are connected through a plurality of component mounting holes 138 arranged in an annular array, and a medium discharge port 137 for discharging the medium inside the central flow chamber 136 is arranged at the bottom center of the horizontal supporting base plate 131.

[0025] For dust suppression, see Figure 1 , Figure 3 and Figure 4 It is necessary to set up an annular buffering liquid atomization structure 14, inside which are arranged an annular air film 147 for generating buffering pressure for the liquid located in the central part and an atomizing nozzle 145 for discharging the liquid in the form of atomization. When the external liquid is pressed into the inner side of the annular air film 147, the annular air film 147 will be deformed to expand toward the periphery, and the deformation of the annular air film 147 can produce an energy storage state for the liquid located inside thereof, so that the liquid generates a certain pressure under the action of the pressure, and has the function of buffering energy storage. When the pressure reaches a certain level, the liquid will be sprayed toward the dust in the form of atomization through the atomizing nozzle 145, thereby adsorbing and removing the dust.

[0026] For the specific structure of the annular buffer liquid atomization structure 14, please refer to Figure 3 and Figure 4, including an annular hollow body 141, the axial center of the annular hollow body 141 is provided with a central fixing hole 142 clamped in the annular mounting groove 134, the annular solid part of the annular hollow body 141 is provided with an annular cavity 143, the annular hollow body 141 is embedded with an annular air film 147 in the annular middle area of ​​the annular cavity 143, in order to have the buffering capacity during energy storage and liquid storage, it is necessary to make the two ends of the annular air film 147 embedded in the symmetrical end faces of the annular hollow body 141, and the annular air film 147 is made of a rubber material with elastic strength, and the annular air film 1 The inner and outer circumferential surfaces of 47 divide the annular cavity 143 into an inner annular layer and an outer annular layer, the annular middle part of the annular air film 147 is provided with an annular insert body 148 of an integral structure, the outer circumferential surface of the annular hollow body 141 is provided with a component insertion hole 149 pointing to the annular insert body 148, the inner annular surface of the annular hollow body 141 is provided with a columnar nozzle 144 of an integral structure extending toward the central fixing hole 142, the interior of the columnar nozzle 144 is installed with an atomizing nozzle 145 for discharging liquid in atomized form, and the columnar nozzle 144 is correspondingly installed in the interior of each component mounting hole 138.

[0027] To achieve directional compression of liquids, see Figure 1 , Figure 5 and Figure 6 , it is necessary to set up a telescopic press-in liquid compression structure 15, which is provided with a piston body 1511 inside which can directionally press the liquid into the annular buffer liquid atomization structure 14 during the reciprocating motion. When the top end of the telescopic resistance rod 1512 is subjected to pressure, the piston body 1511 will have a downward movement tendency, thereby forcing the liquid at the bottom of the piston body 1511 to be pressed into the inner annular layer of the annular cavity 143. When the top end of the telescopic resistance rod 1512 is not subjected to pressure, the piston body 1511 will move upward under the elastic action of the coil spring 1510, so that the external liquid can be sucked into the interior of the horizontal active cavity 153 through the liquid injection pipe body 155, thereby realizing the liquid suction and directional discharge functions.

[0028] For the specific structure of the telescopic press-in liquid compression structure 15, please refer to Figure 5 and Figure 6, including an arc-shaped mounting plate 151 fixedly mounted on a part of the circumferential side of the annular hollow body 141, the outer annular surface of the arc-shaped mounting plate 151 is provided with a horizontal hollow cylinder structure 152 facing the direction of the rotor 11, the center of the horizontal hollow cylinder structure 152 is provided with a horizontal activity cavity 153, the horizontal activity cavity 153 is provided with a horizontal limit space 154 at one end close to the arc-shaped mounting plate 151, and the circumferential surface of the arc-shaped mounting plate 151 is provided with an integrated structure for liquid to enter the horizontal limit space 154. The liquid injection pipe body 155, the inner side of the arc-shaped mounting plate 151 is provided with a through-component insertion hole 149 and an annular insert body 148 and a liquid discharge pipe body 156 connected to the end structure of the horizontal limit space 154, the end structure of the liquid discharge pipe body 156 extends into the inner annular layer of the annular cavity 143, and is provided with an annular limit structure 159 to prevent the open end of the liquid discharge pipe body 156 from entering the outer annular layer of the annular cavity 143, the liquid injection pipe body 155 and the liquid discharge pipe body 15 6 are respectively installed with a first liquid one-way valve 157 and a second liquid one-way valve 158. In order to realize the directional movement of the liquid after suction and compression, it is necessary to make the liquid discharge port of the first liquid one-way valve 157 face the horizontal limit space 154, and the liquid discharge port of the second liquid one-way valve 158 face the liquid discharge pipe body 156. The horizontal hollow cylinder structure 152 is provided with a piston body 1511 which can move axially along the horizontal activity chamber 153 inside the horizontal activity chamber 153. A coil spring 1510 is placed at one end of the piston body 1511 in the cavity 153 to exert pressure on the piston body 1511 toward the rotor 11. A telescopic abutment rod 1512 is installed at the other end of the piston body 1511 and passes through the corresponding end structure of the horizontal hollow cylindrical structure 152. The telescopic abutment rod 1512 is provided with an integrated spherical placement shell 1513 at one end located outside the horizontal activity cavity 153. A ball 1514 that can roll inside the spherical placement shell 1513 is placed on the concave surface of the spherical placement shell 1513.

[0029] In order to generate pressure on the piston body 1511 and compress the liquid, please refer to Figure 1 , Figure 7 and Figure 8, it is necessary to set up an eccentric rotating structure 16, inside which is set a cylindrical rotating structure 162 which produces an indirect compression function on the piston body 1511 when rotating with the rotor 11. When the drive motor 10 is started, the rotor 11 will drive the cylindrical rotating structure 162 to rotate. Due to the eccentric setting, the cylindrical rotating structure 162 will produce a cyclic compression function on the ball 1514, so that the piston body 1511 produces longitudinal reciprocating motion to compress the liquid. Since the contact between the two is the rollable ball 1514, the friction of the contact surface is reduced, thereby improving the service life of the components and the kinetic energy loss rate.

[0030] For the specific structure of the eccentric rotating structure 16, please refer to Figure 7 and Figure 8 , including a disc-shaped fixing plate 161, one end face of which is provided with a cylindrical rotating structure 162 of an integrated structure, and the middle part of the circumferential side face of the cylindrical rotating structure 162 is provided with an annular groove 163 for clamping a partial structure of the ball 1514. In order to maintain a stable rolling connection relationship, it is necessary to make the arc structure formed by the cross-sectional structure of the annular groove 163 match the outer surface of the ball 1514, and the depth of the annular groove 163 is less than the structural radius of the ball 1514. The other end face of the disc-shaped fixing plate 161 is provided with a rotor fixing groove 164 for fixing and installing the rotor 11 in an orientation deviating from the axial line of the disc-shaped fixing plate 161. In order to achieve the necessary limiting capacity so that the components can move normally, it is necessary to make the pressure caused by the annular groove 163 on the ball 1514 during rotation so that the piston body 1511 can produce a reciprocating motion state.

[0031] When in use, liquid is injected into the pipeline body 155 and connected to the discharge port of a storage tank for storing liquid through a pipeline, and then the drive motor 10 is started. When the drive motor 10 is started, the rotor 11 rotates rapidly. By controlling the rotation speed of the rotor 11 and the gas driving direction of the fan blade 5, the gas containing dust flows along the dust flow chamber 2. During the movement of dust, the dust concentration detection head 8 can detect the surrounding dust concentration. After detecting the specific concentration, the dust concentration detection head 8 can display the specific value of the dust concentration through the concentration display 9. The staff can obtain the specific value by observing the concentration display 9. At the same time, the air and dust can flow downward in a concentrated manner, and the liquid will be mixed with the flowing dust in the form of atomization. When the liquid and dust come into contact, the dust is adsorbed, thereby achieving a dust reduction effect.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A measuring device for construction engineering, comprising a longitudinal hollow cylinder (1), a dust flow chamber (2) with two ends opened at the center of the longitudinal hollow cylinder (1), a funnel-shaped air inlet (3) arranged at the top of the dust flow chamber (2), a main rotating shaft (6) installed at the center of the dust flow chamber (2) through a support rod (4) and a bearing, a fan blade (5) installed at the front end of the main rotating shaft (6), a dust concentration detection head (8) installed inside the dust flow chamber (2) and capable of detecting the surrounding dust concentration, a concentration display (9) installed outside the longitudinal hollow cylinder (1) and capable of displaying data in the dust concentration detection head (8), a driving motor (10) fixedly installed on the periphery of one side of the longitudinal hollow cylinder (1) along the longitudinal direction of the longitudinal hollow cylinder (1), a pulley (7) and a belt (12) installed between a rotor (11) of the driving motor (10) and the main rotating shaft (6), characterized in that: Also includes A bottom compression support structure (13) is provided inside which is provided a central flow cavity (136) for centrally compressing gas and dust flowing from top to bottom, and a plurality of component mounting holes (138) arranged in an annular array on a central circumferential surface of the central flow cavity (136); An annular buffering liquid atomizing structure (14), wherein an annular air film (147) for generating a buffering pressure on the liquid at the center and an atomizing nozzle (145) for discharging the liquid in an atomized form are arranged inside the structure; A telescopic pressurized liquid compression structure (15), wherein a piston body (1511) is arranged inside the structure and can directionally press the liquid into the annular buffer liquid atomization structure (14) during the reciprocating motion; And an eccentric rotating structure (16), wherein a cylindrical rotating structure (162) is arranged inside the eccentric rotating structure (16) and generates an indirect compression function on the piston body (1511) when rotating with the rotor (11).

2. A construction engineering measurement device according to claim 1, characterized in that: The bottom compression support structure (13) comprises a horizontal support base plate (131), a support leg (132) is installed at the bottom edge of the horizontal support base plate (131), a bottom longitudinal structure (133) of an integral structure and fixedly connected to the bottom end of the longitudinal hollow cylinder (1) is arranged at the center of the upper end surface of the horizontal support base plate (131), an annular mounting groove (134) is arranged on the periphery of the circumferential surface of the bottom longitudinal structure (133), a funnel-shaped flow cavity (135) is arranged at the center of the top end of the bottom longitudinal structure (133), a central flow cavity (136) extending downward is arranged at the bottom end of the funnel-shaped flow cavity (135), the circumferential surface of the central flow cavity (136) and the inner side of the annular mounting groove (134) are connected through a plurality of component mounting holes (138) arranged in an annular array, and a medium discharge port (137) for discharging the medium inside the central flow cavity (136) is arranged at the center of the bottom of the horizontal support base plate (131).

3. A construction engineering measurement device according to claim 2, characterized in that: The upper end of the funnel-shaped flow cavity (135) is connected to the bottom end of the dust flow cavity (2), and the diameter of the upper end of the funnel-shaped flow cavity (135) is greater than the diameter of the lower end thereof.

4. A construction engineering measurement device according to claim 2, characterized in that: The annular buffer liquid atomization structure (14) comprises an annular hollow body (141), the axial center of the annular hollow body (141) is provided with a central fixing hole (142) which is clamped in the annular mounting groove (134), the annular solid part of the annular hollow body (141) is provided with an annular cavity (143), the annular hollow body (141) is embedded with an annular air film (147) in the annular middle area of ​​the annular cavity (143), the inner and outer circumferential surfaces of the annular air film (147) divide the annular cavity (143) into an inner annular layer and an outer annular layer, and the annular air film (147) is provided with an annular cavity (143). An annular insert body (148) of an integral structure is arranged in the annular middle part of the shaped air film (147); a component insertion hole (149) pointing to the annular insert body (148) is arranged on the outer circumferential surface of the annular hollow body (141); a columnar nozzle (144) of an integral structure extending toward the central fixing hole (142) is arranged on the inner annular surface of the annular hollow body (141); an atomizing nozzle (145) for discharging liquid in an atomized form is installed inside the columnar nozzle (144); the columnar nozzle (144) is correspondingly installed inside each component mounting hole (138).

5. A construction engineering measurement device according to claim 4, characterized in that: Both ends of the annular air membrane (147) are embedded in the symmetrical end faces of the annular hollow body (141), and the annular air membrane (147) is made of a rubber material with elastic strength.

6. A construction engineering measurement device according to claim 4, characterized in that: The telescopic press-in liquid compression structure (15) comprises an arc-shaped mounting plate (151) fixedly mounted on a part of the circumferential side surface of the annular hollow body (141); the outer annular surface of the arc-shaped mounting plate (151) is provided with a horizontal hollow cylinder structure (152) facing the direction of the rotor (11); a horizontal activity cavity (153) is provided at the center of the horizontal hollow cylinder structure (152); a horizontal limit space (154) is provided at one end of the horizontal activity cavity (153) close to the arc-shaped mounting plate (151); 1) is provided with an integrated structure on the circumferential surface thereof and is used for liquid to enter the horizontal limiting space (154) through a liquid injection pipe body (155); the inner side of the arc-shaped mounting plate (151) is provided with a through-component insertion hole (149) and an annular insert body (148) and a liquid discharge pipe body (156) connected to the end structure of the horizontal limiting space (154); the end structure of the liquid discharge pipe body (156) extends into the inner annular layer of the annular cavity (143) and is provided with a liquid discharge pipe body (156) at the open end thereof. The annular limiting structure (159) is arranged in the outer annular layer of the annular cavity (143); the first liquid one-way valve (157) and the second liquid one-way valve (158) are installed inside the liquid injection pipeline body (155) and the liquid discharge pipeline body (156), respectively; the horizontal hollow cylindrical structure (152) is provided with a piston body (1511) movable along the axial direction of the horizontal movable cavity (153) inside the horizontal movable cavity (153); the horizontal movable cavity (153) is provided with a piston body (1511) at one end of the piston body (1511) A coil spring (1510) is provided to exert pressure on the piston body (1511) in the direction of the rotor (11); a telescopic abutment rod (1512) penetrating the corresponding end structure of the horizontal hollow cylindrical structure (152) is installed at the other end of the piston body (1511); a spherical placement shell (1513) of an integrated structure is provided at one end of the telescopic abutment rod (1512) located outside the horizontal activity chamber (153); a ball (1514) that can roll inside the spherical placement shell (1513) is placed on the concave surface of the spherical placement shell (1513).

7. A construction engineering measurement device according to claim 6, characterized in that: The liquid discharge port of the first liquid one-way valve (157) faces the horizontal limiting space (154), and the liquid discharge port of the second liquid one-way valve (158) faces the liquid discharge pipeline body (156).

8. A construction engineering measurement device according to claim 6, characterized in that: The eccentric rotating structure (16) comprises a disc-shaped fixing plate (161), one end face of the disc-shaped fixing plate (161) is provided with a columnar rotating structure (162) of an integrated structure, a circular sliding groove (163) capable of clamping a part of the ball (1514) is provided in the middle of the circumferential side face of the columnar rotating structure (162), and the other end face of the disc-shaped fixing plate (161) is provided with a rotor fixing groove (164) for fixing and installing the rotor (11) in an orientation deviating from the axis of the disc-shaped fixing plate (161).

9. A construction engineering measurement device according to claim 8, characterized in that: The arc-shaped structure formed by the cross-sectional structure of the annular sliding groove (163) matches the outer surface of the ball (1514), and the depth of the annular sliding groove (163) is smaller than the structural radius of the ball (1514).

10. A construction engineering measurement device according to claim 9, characterized in that: When the annular sliding groove (163) rotates, the pressure exerted on the ball (1514) can cause the piston body (1511) to produce a reciprocating motion state.

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