Building construction measuring equipment

Abstract

The invention discloses building construction measuring equipment, and belongs to the technical field of measurement, and the building construction measuring equipment comprises a connecting column, one end of the connecting column is connected with a first moving mechanism, the first moving mechanism is connected with a second moving mechanism, and the lower end of the second moving mechanism is connected with a laser level meter. The fixing plate is inclined, so that the rainfall can flow to the water inlet on the fixing plate, the rainfall can be collected and stored by the water inlet, and then the rainfall is sprayed out through the connecting column to clean the laser gradienter; the moving path of the laser level meter on the second moving mechanism can be controlled by controlling the rotating speed and the rotating direction of the worm, the whole device can be installed at an absolutely safe position, then the laser level meter is sent to a measuring position through moving, the laser level meter is safer to use, and the measuring range of the device can be increased.

Description

Technical Field

[0001] The present invention relates to the field of measurement technology, and more particularly to a construction measurement device. Background Art

[0002] Laser level is a level that directs the laser beam emitted by the laser device into the telescope tube of the level so that it is emitted along the sighting axis. Compared with optical level, laser level has the characteristics of high accuracy, long sight line and automatic reading and recording.

[0003] During the construction process, for large buildings, long-term measurement of equipment is often required. The laser level may need to be placed in one location for a month or even longer. The construction site environment is harsh and dusty. Currently commonly used laser levels basically do not have a cleaning function. Long-term contact of the equipment with dust will affect the measurement accuracy. In addition, due to the particularity of the environment of the construction site, the equipment installation area may not be safe enough. Direct installation is not conducive to the long-term use of the equipment. Summary of the invention

[0004] The object of the present invention is to provide a construction measurement device to solve the problems raised in the above background technology.

[0005] A construction measurement device, comprising a connecting column, one end of which is fixedly connected to a moving mechanism 1, the angle between the connecting column and the moving mechanism 1 is greater than 90 degrees, a moving mechanism 2 is slidably connected to the moving mechanism 1, and a laser level is fixedly connected to the lower end of the moving mechanism 2; The moving mechanism 1 includes a fixed plate fixedly connected to the connecting column, a baffle is fixedly connected to the inside of the fixed plate, a motor is arranged on the side of the baffle close to the connecting column, the motor has two baffles, one end of which is rotatably connected to a limiting rod away from the motor, the end of the limiting rod away from the baffle is rotatably connected to the fixed plate, there are two limiting rods and threaded grooves are arranged on the limiting rods, and the output ends of the motor are fixedly connected to a worm gear.

[0006] Preferably, the worm runs through the baffle, and the end of the worm away from the motor is rotatably connected to the fixed plate, the upper end of the fixed plate is fixedly connected to a limiting block, and a water inlet is provided on the side of the fixed plate close to the limiting block, and a grid is provided on the outer side of the water inlet. The water inlet can collect precipitation and store it, and the grid can intercept some debris, and the movement of the moving mechanism 2 can be used to clean the debris on the grid. At the same time, the fixed plate is inclined as a whole, so that precipitation can flow to the water inlet on the fixed plate, and it is also convenient to clean the debris.

[0007] Preferably, the movable mechanism 2 includes a connecting plate slidably connected to the movable mechanism 1, the end of the connecting plate away from the connecting column is fixedly connected to the solar panel, scrapers are fixedly connected to both sides of the connecting plate, the end of the connecting plate away from the solar panel is fixedly connected to the connecting plate 1, the connecting plate 1 is slidably connected to the limit rod, and the sliding rod at the end of the connecting plate 1 away from the connecting plate is connected to the movable plate.

[0008] Preferably, a rotating shaft is rotatably connected at the center of the connecting plate 1, and a turbine is fixedly connected to the end of the rotating shaft close to the solar panel, and the turbine is meshed with the worm. The rotating shaft passes through the connecting plate 1 to the interior of the movable plate. A drying component is fixedly connected to the end of the connecting plate 1 away from the connecting column, and the drying component is rotatably connected to the limit rod.

[0009] Preferably, the end of the rotating shaft away from the turbine is fixedly connected with a gear, the gear is rotatably connected to the connecting plate 1, a rack is meshed on the outer side of the gear, the end of the rack away from the gear is slidably connected to a limiting block 2, the limiting block 2 is fixedly connected to the connecting plate 1, a limiting block 1 is provided at the end of the gear away from the rack, the limiting block 1 is fixedly connected to the connecting plate 1, a sliding rod is slidably connected to the inner side of the limiting block 1, both ends of the sliding rod and the rack are fixedly connected to the movable plate, and the end of the movable plate away from the connecting plate 1 is fixedly connected to the laser level.

[0010] Preferably, the drying component includes a connecting plate 2 fixedly connected to the connecting plate 1, a connecting plate 3 fixedly connected to the lower end of the connecting plate 2, two gear 1s are rotatably connected inside the connecting plate 2, the gear 1 is threadedly connected to the limit rod, the outer side of the gear 1 is meshed with gear 2, the side of the gear 2 away from the gear 1 is meshed with gear 3, the gear 3 is rotatably connected to the connecting plate 3, and the end of the gear 3 close to the connecting plate 1 is fixedly connected to a fan.

[0011] Preferably, the connecting column includes a fixed column fixedly connected to the moving mechanism, a clamping block is fixedly connected to the fixed column, a sponge block is arranged on the clamping block, a connecting block is arranged on the end of the clamping block away from the moving mechanism, the connecting block is fixedly connected to the fixed column, a plurality of water spray columns are arranged on the connecting block, the laser level can be wiped by the sponge block, and the water spray columns can spray out the precipitation collected at the water inlet to wet the laser level, so that the sponge block can clean the laser level more effectively, thereby increasing the measurement accuracy of the laser level.

[0012] Preferably, the laser level is internally provided with power supply No. 1 and power supply No. 2, a double-pole double-throw relay is arranged between power supply No. 1 and power supply No. 2, the laser level is internally provided with power supply No. 3, power supply No. 3 is provided with a single-pole single-throw relay, power supply No. 3 is connected in series with an alarm, when the laser level is running, power supply No. 1 will first power the laser level, when power supply No. 1 is used up, the relay will switch to power supply No. 2 for power supply, and charge power supply No. 1 at the same time, similarly, when power supply No. 2 is used up, the relay will switch to power supply No. 1 for power supply again, and charge power supply No. 2 at the same time, and when both power supply No. 1 and power supply No. 2 are out of power, power supply No. 3 will power the laser level, and power supply No. 3 will also activate the alarm at the same time, the alarm reminds the staff that the laser level is in a power outage state, the staff can use power supply No. 3 to control the laser level to conduct preliminary on-site problem troubleshooting and then carry out corresponding maintenance work.

[0013] Compared with the prior art, the advantages of the present invention are: 1. In the present invention, by setting the moving mechanism one, the fixed plate is inclined so that precipitation can flow on the fixed plate to the water inlet. The water inlet will collect and store the precipitation, and the collected precipitation will be sprayed out through the connecting column regularly and quantitatively to clean the laser level. At the same time, the grid on the water inlet can intercept some debris, and the movement of the moving mechanism two can be used to clean the debris on the grid. At the same time, the fixed plate is inclined as a whole, so that the debris can naturally fall to the outside of the fixed plate. In addition, by setting two worm gears, the moving path of the laser level on the moving mechanism two can be controlled by controlling the rotation speed and direction of the worm gears, so that the entire device can be installed in an absolutely safe position, and then the laser level is sent to the measuring position by movement, which not only makes the use of the laser level safer but also increases the measuring range of the device.

[0014] 2. In the present invention, by setting the second moving mechanism and the turbine, when the worm rotates in the same direction, the turbine can only move without rotating, and when the worm rotates in opposite directions, the turbine can only rotate without moving. Then, the movement of the laser level is controlled by controlling the rotation direction of the worm, so that the laser level can move a longer distance and increase the measuring range. At the same time, when the second moving mechanism moves along the direction of the worm, the limit rod can drive the fan to rotate through linkage, thereby blowing air to the laser level, so that the laser level can be dried at a faster speed after cleaning. At the same time, the debris on the surface of the laser level can be blown clean when moving, thereby reducing the number of contacts between the laser level and water, and preventing water droplets from entering the interior of the laser level and reducing the service life of parts.

[0015] 3. In the present invention, three power supplies are arranged in the laser level so that power supply No. 1 and power supply No. 2 can switch to each other to power the laser level. When both power supplies are out of power, it is due to external factors that the equipment is short of power. Power supply No. 3 is used to power the laser level, so that the staff can check the on-site environment through the laser level after the power supply No. 3 is used to check the cause of the equipment power shortage. At the same time, the alarm will be triggered synchronously after power supply No. 3 is started. When the laser level is short of power due to damage by animals, the alarm can not only directly remind the staff to check, but also prevent the animals from continuing to damage the laser level. The laser level is inverted and connected to the mobile mechanism two, so that the mobile mechanism two can partially block the precipitation of the laser level, reduce the contact between the laser level and water, and prevent water droplets from entering the interior of the laser level and reducing the service life of parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 Another perspective view of the overall structure of the present invention; Figure 3 It is a schematic diagram of the overall structure of the mobile mechanism 2 of the present invention; Figure 4 It is a schematic diagram of the internal structure of the mobile mechanism 1 of the present invention; Figure 5 It is a structural schematic diagram of the moving mechanism 1 of the present invention; Figure 6 It is a schematic diagram of the internal structure of the second moving mechanism of the present invention; Figure 7 For the present invention Figure 4 A magnified view of the structure at center A; Figure 8 It is a schematic diagram of the internal structure of the movable plate of the present invention; Fig. 9 It is a schematic diagram of the internal structure of the drying component of the present invention; Fig.10 Another perspective view of the drying component of the present invention; Fig.11 It is a schematic diagram of the overall structure of the connecting column of the present invention.

[0017] Explanation of the reference numerals in the figure: 1. Connecting column; 101. Fixed column; 102. Clamping block; 103. Connecting block; 104. Sponge block; 105. Water spray column; 2. Moving mechanism 1; 201. Fixed plate; 202. Motor; 203. Worm; 204. Limiting rod; 205. Baffle; 206. Water inlet; 207. Limiting block; 3. Moving mechanism 2; 301. Solar panel; 303. Turbine; 304 , rotating shaft; 305, connecting plate one; 306, moving plate; 307, connecting plate; 308, limiting block one; 309, sliding rod; 310, gear; 311, rack; 312, drying component; 313, scraper; 314, limiting block two; 315, connecting plate two; 316, gear one; 317, gear two; 318, gear three; 319, connecting plate three; 320, fan; 4, laser level. DETAILED DESCRIPTION Example

[0018] See also Figure 1 and Figure 2 A construction measurement device comprises a connecting column 1, one end of the connecting column 1 is fixedly connected to a moving mechanism 2, the angle between the connecting column 1 and the moving mechanism 2 is greater than 90 degrees, a moving mechanism 2 3 is slidably connected to the moving mechanism 2, and a laser level 4 is fixedly connected to the lower end of the moving mechanism 2 3; See also Figure 3 and Figure 4 The moving mechanism 2 includes a fixed plate 201 fixedly connected to the connecting column 1, a baffle 205 is fixedly connected inside the fixed plate 201, a motor 202 is arranged on the side of the baffle 205 close to the connecting column 1, the motor 202 has two baffles 205, one end of the motor 202 is rotatably connected to a limiting rod 204, one end of the limiting rod 204 away from the baffle 205 is rotatably connected to the fixed plate 201, there are two limiting rods 204 and a threaded groove is arranged on the limiting rod 204, and the output end of the motor 202 is fixedly connected to a worm 203.

[0019] See also Figure 4 and Figure 5The worm 203 passes through the baffle 205, and the end of the worm 203 away from the motor 202 is rotatably connected to the fixed plate 201. The upper end of the fixed plate 201 is fixedly connected to the limit block 207. A water inlet 206 is provided on the side of the fixed plate 201 close to the limit block 207. A grid is provided on the outside of the water inlet 206. The water inlet 206 has two usage methods, collecting precipitation and storing it or using artificial glass water. When collecting precipitation, an adsorption block needs to be set in the storage area, which can adsorb impurities in the precipitation to ensure the cleanliness of the clean water. At the same time, the grid can intercept some debris, and the movement of the moving mechanism 23 can be used to clean the debris on the grid. At the same time, the fixed plate 201 is tilted as a whole, so that precipitation can flow to the water inlet 206 on the fixed plate 201, and it is also convenient to clean the debris.

[0020] Specifically, the moving path of the mobile mechanism 23 can be controlled by controlling the direction and rotation speed of the worm 203. When the two motors 202 control the worm 203 to have the same direction, the worm 203 will directly drive the mobile mechanism 23 to move, thereby enabling the mobile mechanism 23 to drive the laser level 4 to move. When the two worms 203 rotate in opposite directions, the laser level 4 will move laterally on the mobile mechanism 23, so that the laser level 4 can be installed in a safe area and measure a designated position, and It can also increase the measuring range. When there is precipitation, the precipitation will flow to the water inlet 206 through the fixed plate 201, and the precipitation will be partially stored through the water inlet 206. At the same time, the limit block 207 can not only limit the moving path of the moving mechanism 23, but also limit the flow path of the precipitation. When the precipitation is too large, in addition to the drain outlet in the water inlet 206, the moving mechanism 23 can also be moved to block the water inlet 206 to reduce the precipitation flowing into the water inlet 206 for secondary protection.

[0021] See also Figure 3 and Figure 6 The moving mechanism 2 3 includes a connecting plate 307 slidably connected to the moving mechanism 1 2, the end of the connecting plate 307 away from the connecting column 1 is fixedly connected to the solar panel 301, both sides of the connecting plate 307 are fixedly connected to the scraper 313, the end of the connecting plate 307 away from the solar panel 301 is fixedly connected to the connecting plate 1 305, the connecting plate 1 305 is slidably connected to the limit rod 204, and the end of the connecting plate 1 305 away from the connecting plate 307 is connected to the moving plate 306 by a sliding rod.

[0022] See also Figure 6 and Figure 7A rotating shaft 304 is rotatably connected at the center of the connecting plate 305, and a turbine 303 is fixedly connected to one end of the rotating shaft 304 close to the solar panel 301. The turbine 303 is meshed with the worm 203. The rotating shaft 304 passes through the connecting plate 305 to the inner part of the movable plate 306. A drying component 312 is fixedly connected to one end of the connecting plate 305 away from the connecting column 1, and the drying component 312 is rotatably connected to the limiting rod 204.

[0023] See also Figure 7 and Figure 8 The end of the rotating shaft 304 away from the turbine 303 is fixedly connected with a gear 310, and the gear 310 is rotatably connected to the connecting plate 305. A rack 311 is meshed on the outer side of the gear 310, and the end of the rack 311 away from the gear 310 is slidably connected to a limiting block 2 314, and the limiting block 2 314 is fixedly connected to the connecting plate 305. A limiting block 1 308 is set at the end of the gear 310 away from the rack 311, and the limiting block 1 308 is fixedly connected to the connecting plate 305. A sliding rod 309 is slidably connected to the inner side of the limiting block 1 308, and both ends of the sliding rod 309 and the rack 311 are fixedly connected to the movable plate 306, and the end of the movable plate 306 away from the connecting plate 305 is fixedly connected to the laser level 4.

[0024] Specifically, when the worm 203 rotates in the same direction, the worm 203 will not drive the turbine 303 to rotate, so that the entire moving mechanism 23 moves along with the rotation of the worm 203, and then the scraper 313 can be used to clean the debris on the moving mechanism 2. When the worm 203 rotates in the opposite direction, the turbine 303 starts to rotate under the action of the worm 203, and then drives the gear 310 to rotate through the shaft 304. The rotation of the gear 310 will synchronously drive the rack 311 to move, so that the moving plate 306 can drive the laser level 4 to move horizontally, so that the laser level 4 can measure a larger range.

[0025] See also Fig. 9 and Fig.10 The drying component 312 includes a connecting plate 2 315 fixedly connected to the connecting plate 1 305, a connecting plate 3 319 being fixedly connected to the lower end of the connecting plate 2 315, two gear 1s 316 being rotatably connected inside the connecting plate 2 315, the gear 1 316 being threadedly connected to the limiting rod 204, a gear 2 317 being meshed with the outer side of the gear 1 316, a gear 3 318 being meshed with the side of the gear 2 317 away from the gear 1 316, the gear 3 318 being rotatably connected to the connecting plate 3 319, and a fan 320 being fixedly connected to the end of the gear 3 318 close to the connecting plate 1 305.

[0026] Specifically, when the worm 203 rotates in the same direction, the moving mechanism 23 will move as a whole on the moving mechanism 12, and the gear 1 316 will start to rotate under the action of the threaded groove on the limit rod 204. The rotation of the gear 1 316 will drive the gear 2 317 to rotate synchronously, and the rotation of the gear 2 317 will drive the gear 3 318 to rotate, thereby allowing the fan 320 to start rotating. The rotation of the fan 320 allows the moving mechanism 23 to accelerate the dryness of the laser level 4 through the fan 320 when moving, and can also blow away some dust on the surface of the laser level 4, so that the fan 320 can perform basic cleaning on the laser level 4, reduce the contact between the laser level 4 and water, and increase the service life of the laser level 4.

[0027] See also Fig.11 The connecting column 1 includes a fixed column 101 fixedly connected to the moving mechanism 2, a clamping block 102 is fixedly connected to the fixed column 101, a sponge block 104 is arranged on the clamping block 102, a connecting block 103 is arranged at one end of the clamping block 102 away from the moving mechanism 2, the connecting block 103 is fixedly connected to the fixed column 101, and a plurality of water spray columns 105 are arranged on the connecting block 103.

[0028] Specifically, the sponge block 104 can wipe the laser level 4, and the water spray column 105 can spray the precipitation collected by the water inlet 206 to moisten the laser level 4, so that the sponge block 104 can clean the laser level 4 more effectively and increase the measurement accuracy of the laser level 4.

[0029] See also Figure 1 and Figure 2 The laser level 4 is provided with power supply No. 1 and power supply No. 2 inside, a double-pole double-throw relay is provided between power supply No. 1 and power supply No. 2, the laser level 4 is provided with power supply No. 3 inside, a single-pole single-throw relay is provided on power supply No. 3, and power supply No. 3 is connected in series with the alarm bell.

[0030] Specifically, when the laser level 4 is running, power supply No. 1 will first power the laser level 4. When power supply No. 1 is used up, the relay will switch to power supply No. 2 for power supply, and charge power supply No. 1 at the same time. Similarly, when power supply No. 2 is used up, the relay will switch to power supply No. 1 for power supply again, and charge power supply No. 2 at the same time. When power supply No. 1 and power supply No. 2 are both out of power, power supply No. 3 will power the laser level 4, and power supply No. 3 will also activate the alarm at the same time. The alarm will remind the staff that the laser level 4 is in a power outage, and the staff will then perform the corresponding battery replacement work.

[0031] Working principle of the present invention: when the laser level 4 is running, power supply No. 1 will first supply power to the laser level 4. When power supply No. 1 runs out of power, the relay will switch to power supply No. 2 for power supply and charge power supply No. 1 at the same time. Similarly, when power supply No. 2 runs out of power, the relay will switch to power supply No. 1 for power supply again and charge power supply No. 2 at the same time. When both power supply No. 1 and power supply No. 2 are out of power, power supply No. 3 will supply power to the laser level 4. At the same time, power supply No. 3 will also start an alarm. The alarm will alert the staff that the laser level 4 is out of power, and the staff will then perform corresponding battery replacement work. By controlling the direction and speed of the worm 203, the moving path of the moving mechanism 23 can be controlled. When the worm 203 rotates in the same direction, the worm 203 will not drive the turbine 303 to rotate, so that the entire moving mechanism 23 moves along with the rotation of the worm 203, and then the debris on the moving mechanism 2 can be cleaned by the scraper 313. When the worm 203 rotates in the opposite direction, the turbine 303 starts to rotate under the action of the worm 203, and then drives the gear 310 to rotate through the rotating shaft 304. The rotation of the gear 310 will synchronously drive the rack 311 to move, so that the moving plate 306 can drive the laser level 4 to move horizontally, so that the laser level The instrument 4 can measure a larger range, and when the worm 203 rotates in the same direction, the moving mechanism 23 will move as a whole on the moving mechanism 1 2, and the gear 1 316 will start to rotate under the action of the threaded groove on the limit rod 204. The rotation of gear 1 316 will drive the gear 2 317 to rotate synchronously, and the rotation of gear 2 317 will drive the gear 3 318 to rotate, thereby allowing the fan 320 to start rotating. The rotation of the fan 320 allows the moving mechanism 2 3 to accelerate the dryness of the laser level 4 through the fan 320 when moving, and can also blow away some dust on the surface of the laser level 4, so that the laser level 4 can be basically cleaned by the fan 320.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A construction measurement device, comprising a connecting column (1), characterized in that: One end of the connecting column (1) is fixedly connected to a moving mechanism 1 (2), the angle between the connecting column (1) and the moving mechanism 1 (2) is greater than 90 degrees, a moving mechanism 2 (3) is slidably connected to the moving mechanism 1 (2), and a laser level (4) is fixedly connected to the lower end of the moving mechanism 2 (3); The moving mechanism 1 (2) comprises a fixed plate (201) fixedly connected to the connecting column (1), a baffle (205) being fixedly connected inside the fixed plate (201), a motor (202) being arranged on a side of the baffle (205) close to the connecting column (1), the motor (202) having two baffles (205) being rotatably connected to a limiting rod (204) at one end away from the motor (202), the limiting rod (204) being rotatably connected to the fixed plate (201) at one end away from the baffle (205), the limiting rod (204) being rotatably connected to the fixed plate (201), the limiting rod (204) having two limiting rods (204) and the limiting rods (204) being arranged with a thread groove, and the output ends of the motor (202) being fixedly connected to a worm (203).

2. A construction measurement device according to claim 1, characterized in that: The worm (203) passes through the baffle (205), and one end of the worm (203) away from the motor (202) is rotatably connected to the fixed plate (201), the upper end of the fixed plate (201) is fixedly connected to a limit block (207), a water inlet (206) is provided on one side of the fixed plate (201) close to the limit block (207), and a grid is provided on the outer side of the water inlet (206).

3. A construction measurement device according to claim 1, characterized in that: The second moving mechanism (3) comprises a connecting plate (307) slidably connected to the first moving mechanism (2); one end of the connecting plate (307) away from the connecting column (1) is fixedly connected to the solar panel (301); both sides of the connecting plate (307) are fixedly connected to scrapers (313); one end of the connecting plate (307) away from the solar panel (301) is fixedly connected to the first connecting plate (305); the first connecting plate (305) is slidably connected to the limiting rod (204); and one end of the connecting plate (305) away from the connecting plate (307) is connected to the moving plate (306) by a sliding rod.

4. A construction measurement device according to claim 3, characterized in that: A rotating shaft (304) is rotatably connected at the center of the connecting plate 1 (305); an end of the rotating shaft (304) close to the solar panel (301) is fixedly connected to a turbine (303); the turbine (303) is meshed with the worm (203); the rotating shaft (304) passes through the connecting plate 1 (305) to the inside of the movable plate (306); an end of the connecting plate 1 (305) away from the connecting column (1) is fixedly connected to a drying component (312); the drying component (312) is rotatably connected to the limiting rod (204).

5. A construction measurement device according to claim 4, characterized in that: One end of the rotating shaft (304) away from the turbine (303) is fixedly connected to a gear (310), the gear (310) is rotatably connected to the first connecting plate (305), the outer side of the gear (310) is meshed with a rack (311), one end of the rack (311) away from the gear (310) is slidably connected to a second limit block (314), the second limit block (314) is fixedly connected to the first connecting plate (305), the gear (310) away from the turbine (303) is rotatably connected to the first connecting plate (305), the gear (310) away from the turbine (303 ... A limit block (308) is provided at one end of the rack (311), and the limit block (308) is fixedly connected to the connecting plate (305). A sliding rod (309) is slidably connected to the inner side of the limit block (308), and both ends of the sliding rod (309) and the rack (311) are fixedly connected to the movable plate (306), and one end of the movable plate (306) away from the connecting plate (305) is fixedly connected to the laser level (4).

6. A construction measurement device according to claim 4, characterized in that: The drying component (312) includes a connecting plate 2 (315) fixedly connected to the connecting plate 1 (305), the lower end of the connecting plate 2 (315) is fixedly connected to a connecting plate 3 (319), the interior of the connecting plate 2 (315) is rotatably connected to two gear 1s (316), the gear 1 (316) is threadedly connected to the limiting rod (204), the outer side of the gear 1 (316) is meshed with a gear 2 (317), the side of the gear 2 (317) away from the gear 1 (316) is meshed with a gear 3 (318), and the gear 3 (318) is rotatably connected to the connecting plate 3 (319), and the end of the gear 3 (318) close to the connecting plate 1 (305) is fixedly connected to a fan (320).

7. A construction measurement device according to claim 1, characterized in that: The connecting column (1) comprises a fixing column (101) fixedly connected to the moving mechanism one (2), a clamping block (102) fixedly connected to the fixing column (101), a sponge block (104) being arranged on the clamping block (102), a connecting block (103) being arranged at one end of the clamping block (102) away from the moving mechanism one (2), the connecting block (103) being fixedly connected to the fixing column (101), and a plurality of water spraying columns (105) being arranged on the connecting block (103).

8. A construction measurement device according to claim 1, characterized in that: The laser level (4) is provided with a No. 1 power supply and a No. 2 power supply inside, a double-pole double-throw relay is provided between the No. 1 power supply and the No. 2 power supply, the laser level (4) is provided with a No. 3 power supply inside, a single-pole single-throw relay is provided on the No. 3 power supply, and the No. 3 power supply is connected in series with the alarm bell.

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