CN218179887U - Novel building wall levelness detects device - Google Patents

Abstract

A novel building wall levelness detection device comprises a movable carrier, an electric linear sliding table, a storage battery, a laser range finder and an electric push rod, and further comprises a back concave detection circuit, a front convex detection circuit and an alarm circuit; the lower end of the electric push rod is arranged at the upper end of the movable carrier, the lower end of the first set of electric linear sliding table is vertically arranged at the upper end of the electric push rod, and the second set of electric linear sliding table is transversely arranged with the sliding block of the first set of electric linear sliding table; the laser range finder and the sliding block of the second set of electric linear sliding table are installed together; the storage battery, the power switch, the charging socket, the rear concave detection circuit, the front convex detection circuit and the alarm circuit are arranged in the movable carrier and are electrically connected. This novel detect the wall arch or recessed data can in time pass through the chimes of doom suggestion measurement personnel when exceeding the threshold value, brought the facility for measurement personnel, and improved detection efficiency relatively. To sum up, the utility model discloses good application prospect has.

Description

Novel building wall levelness detects device

Technical Field

The utility model relates to a check out test set technical field that construction used, especially a novel building wall levelness detects device.

Background

In building construction, related equipment is adopted to detect the flatness of a wall surface in order to ensure the safety and construction quality of a building. The existing detection equipment is generally that detection personnel use guiding rules and the like to lean on the wall perpendicularly, then the detection personnel obtain the flatness data of the wall through observing the distance between the guiding rules from top to bottom and the wall, and if the distance between the more points inside the guiding rules and the wall is larger, the flatness of the wall is unqualified. Above-mentioned mode can also make things convenient for the measurement personnel to observe in the place that the wall height is low, but when the wall height is higher, because by lower supreme sight not good, can not effectively guarantee that measurement personnel can observe relevant unevenness position, consequently can bring certain adverse effect to the testing effect. If the inspection personnel with the instrument of ascending a height detect the eminence and can bring inconvenience for inspection personnel, and have the risk that inspection personnel fall from the eminence.

Along with the development of technology, comparatively advanced wall roughness check out test set has appeared, for example chinese patent number "202120067361.3", the patent of patent name "building engineering wall roughness detection device", it is recorded "the utility model discloses building engineering wall roughness detection device, hydraulic stem drive casing rebound, the casing drives gyro wheel rebound, scan the wall through scanning device simultaneously, and with data transmission to data processing system of scanning, through the data contrast of different walls, the roughness of test wall, the device passes through the setting of above-mentioned isotructure, make the device possess the convenient accurate advantage of test, traditional building engineering wall roughness detection device has been solved, generally carry out the roughness detection with measuring device such as scale to the staff, this kind of mode test is more troublesome, not only consume time for a long time, and the unsafe problem of test result. Although convenience is brought to detection personnel to a certain extent, in the detection, the rollers are contacted with relevant detection points of the wall surface, so that the rollers have the probability of dirtying the wall surface and damaging the wall surface after the wall surface is painted and decorated (for example, wallpaper is stuck to the wall surface, and the wallpaper is crushed after the rollers roll over); still be, this patent needs the studio personnel to observe the scanning data of transmission to data processing system to data contrast through different walls can obtain the roughness data of wall, still has the shortcoming of bringing inconvenience for the measurement personnel like this, and when measurement personnel did not observe relevant position unevenness data in real time, can bring adverse effect to the detection effect. In conclusion, the device which is convenient to use, can automatically detect the flatness of the wall surface and can prompt the specific position of a detector in time when the unevenness of the wall surface is detected is particularly necessary.

SUMMERY OF THE UTILITY MODEL

In order to overcome the current equipment that is used for building wall flatness to detect, because the structure limit exists as the background the drawback, the utility model provides a do not need measurement personnel to ascend a height and detect, also do not need measurement personnel real-time observation detection data, in using, under relevant mechanism and circuit combined action, can transversely carry out the roughness to the wall one by one automatically and detect, can in time pass through the alarm suggestion measurement personnel when detecting the protruding or recessed data of wall and surpass the threshold value, and can specifically give out unevenness position, brought the facility for measurement personnel from this, and improved detection efficiency's a novel building wall flatness detection device relatively.

The utility model provides a technical scheme that its technical problem adopted is:

a novel building wall levelness detection device comprises a movable carrier, an electric linear sliding table, a storage battery, a laser range finder and an electric push rod, and is characterized by further comprising a back concave detection circuit, a front convex detection circuit and an alarm circuit; the electric linear sliding tables are provided with at least two sets, the lower ends of the electric push rods are arranged at the upper end of the movable carrier, the lower end of the first set of electric linear sliding table is vertically arranged at the upper end of the electric push rod, and the second set of electric linear sliding table is transversely arranged with the sliding block of the first set of electric linear sliding table; the laser range finder and the sliding block of the second set of electric linear sliding table are installed together; the storage battery, the rear concave detection circuit, the front convex detection circuit and the alarm circuit are arranged in the movable carrier; the signal output end of the laser range finder is electrically connected with the control power supply input end of the front convex detection circuit and the signal input end of the rear concave detection circuit; the signal output ends of the rear concave detection circuit and the front convex detection circuit are electrically connected with the signal input end of the alarm circuit, and the control power output end of the alarm circuit is electrically connected with the power input end of the second set of electric linear sliding table.

Further, the electric push rod is a reciprocating electric telescopic rod.

Furtherly, the height that removal carrier, first set of electronic straight line slip table, electric putter constitute highly is less than the height of wall when electric putter's movable rod is located the lower dead point, highly is higher than the height of wall when electric putter's movable rod is located the upper dead point.

Furthermore, the rear concave detection circuit comprises an electric resistor, an NPN triode, a diode and an adjustable resistor, wherein one end of the adjustable resistor is connected with one end of the first resistor and one end of the second resistor, the other end of the second resistor is connected with the base electrode of the NPN triode, the collector electrode of the NPN triode is connected with the negative electrode of the diode, and the other end of the first resistor is connected with the emitter electrode of the NPN triode.

Further, the front protrusion detection circuit comprises a resistor, an NPN triode, a diode and an adjustable resistor which are electrically connected, one end of the adjustable resistor is connected with one end of a first resistor and one end of a second resistor, the other end of the second resistor is connected with a base electrode of the first NPN triode, a collector electrode of the first NPN triode is connected with one end of a third resistor and the base electrode of the second NPN triode, a collector electrode of the second NPN triode is connected with a cathode of the diode, and emitting electrodes of the two NPN triodes are connected with the other end of the first resistor.

Further, alarm circuit includes electric connection's relay and bee calling organ, and bee calling organ positive pole power input end relay normally open contact end connects, and relay positive pole power input end and control power input end connect.

The utility model has the advantages that: for split type structure, convenient storage and transportation are convenient between this novel at ordinary times a plurality of parts, to the scene after, just can get into the detection flow after the measurement personnel assembles whole equipment. Because different heights can be adjusted to first set of electronic sharp slip table and electric putter homoenergetic, can conveniently carry out horizontal roughness to the different heights of wall and detect like this, and because the indoor ceiling of upper end contact that enables first set of electronic sharp slip table, prevented like this that the laser range finder from because of rocking the adverse effect that etc. brought to the testing data in detecting. During the detection, can in time pass through the chimes of doom when detecting that wall arch or recessed data surpass the threshold value and indicate detection personnel, and stop laser range finder stop motion simultaneously, like this, the position that detection personnel stopped through laser range finder just can specifically know the concrete unevenness position of wall, has brought the facility for detection personnel, and has improved detection efficiency relatively. To sum up, the utility model discloses good application prospect has.

Drawings

The invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a circuit diagram of the present invention.

Detailed Description

As shown in fig. 1 and 2, a novel building wall levelness detection device comprises a movable carrier 3 with a hollow shell 1 at the upper end and four universal wheels 2 around the lower end, electric linear sliding tables M2 and M3, a storage battery G1, a power switch, a charging socket CZ, a laser range finder A1, an electric push rod M1, a back concave detection circuit 4, a front convex detection circuit 5 and an alarm circuit 6; the lower end of the outer shell of the electric push rod M1 is vertically distributed and is arranged in the middle outside the upper end of the shell body 1 of the movable carrier through a screw nut, the lower end of the outer shell of the first set of electric linear sliding table M3 is vertically distributed and is arranged on a flange plate at the upper end of the electric push rod M1 through a screw nut, the sliding block of the first set of electric linear sliding table M3 faces the rear end, the outer shell of the second set of electric linear sliding table M2 is transversely distributed, and the rear end is arranged at the rear end of the sliding block of the first set of electric linear sliding table M3 through a screw nut; the laser range finder A1 is longitudinally distributed, and a shell of the laser range finder A1 is arranged at the rear end of a sliding block of a second set of electric linear sliding table M2 through a screw nut (a probe of the laser range finder faces backwards); the storage battery G1, the power switch, the charging socket CZ, the rear concave detection circuit 4, the front convex detection circuit 5 and the alarm circuit 6 are arranged on a circuit board in the shell 1 of the movable carrier.

As shown in fig. 1 and 2, six power switches J1, J2, J3, J4, and J5 are toggle power switches, and operating handles thereof are located outside six openings at the front end of the housing 1; the battery G1 is a lithium battery of type 12V/50 Ah; the jack of the charging socket CZ is positioned outside a seventh open hole at the front end of the shell 1; the electric push rod M1 is a finished product of a reciprocating electric telescopic rod. The height that removes carrier 3, first set of electronic sharp slip table M3, electric putter M1 and constitute, whole height is less than the height of monitoring region wall when electric putter M1's movable rod is located the lower dead point, and whole height is higher than the height of monitoring region wall when electric putter M1's movable rod is located the upper dead point. The rear concave detection circuit comprises resistors R1 and R2, an NPN triode Q1, a diode VD and an adjustable resistor RP1 which are connected through circuit board wiring, one end of the adjustable resistor RP1 is connected with one end of the first resistor R1 and one end of the second resistor R2, the other end of the second resistor R2 is connected with the base electrode of the NPN triode Q1, the collector electrode of the NPN triode Q1 is connected with the negative electrode of the diode VD, the other end of the first resistor R1 is connected with the emitter electrode of the NPN triode Q1, and an adjusting handle of the adjustable resistor RP1 is positioned outside an eighth opening at the front end of the shell. The front projection detection circuit comprises resistors R3, R4 and R5 which are connected through circuit board wiring, NPN triodes Q2 and Q3, a diode VD1 and an adjustable resistor RP2, wherein one end of the adjustable resistor RP2 is connected with one end of the first resistor R3 and one end of the second resistor R4, the other end of the second resistor R4 is connected with a base electrode of the first NPN triode Q2, a collector electrode of the first NPN triode Q2 is connected with one end of the third resistor R5 and the base electrode of the second NPN triode Q3, a collector electrode of the second NPN triode Q3 is connected with a negative electrode of the diode VD1, emitting electrodes of the two NPN triodes Q2 and Q3 are connected with the other end of the first resistor R3, and an adjusting handle of the adjustable resistor RP2 is positioned outside a ninth opening at the front end of the shell. The alarm circuit comprises a relay K1 and a buzzer B which are connected through circuit board wiring, wherein the positive power supply input end of the buzzer B is connected with the normally open contact end of the relay K1, and the positive power supply input end of the relay K1 is connected with the control power supply input end.

As shown in fig. 1 and 2, two poles of a storage battery G1 and two ends of a charging socket CZ are respectively connected through a wire (when the storage battery G1 is out of power, an external 12V power charger plug is inserted into the charging socket CZ to charge the storage battery G1), an anode of the storage battery G1 and one end of a power switch J5 are connected through a wire, the other end of the power switch J5, a negative electrode of the storage battery G1, the other end of a power input end resistor R5 of a front projection detection circuit and an emitter of an NPN triode Q2, a positive power input end of a power input end relay K1 of an alarm circuit and a negative power input end of a buzzer B, pins 1 and 2 of a power input end of a first power switch J1, a power input end of a second power switch J2, pins 1 and 2 of a power input end of a third power switch J3, and pins 1 and 2 of a power input end of a laser range finder A1 are respectively connected through wires. The power output ends 3, 4 pins and 5, 6 pins of the first power switch J1 are respectively connected with the positive and negative and positive bipolar power input ends of the electric push rod M1 through leads. The signal output end 3 and the pin 2 of the laser range finder A1 are respectively connected with the other end of the adjustable resistor RP2 at the signal input end of the front convex detection circuit and the emitter of the NPN triode Q2, and the other end of the adjustable resistor RP1 at the power input end of the rear concave detection circuit and the emitter of the NPN triode Q1 through leads. The positive pole of a diode VD at the signal output end of the rear concave detection circuit, the positive pole of a diode VD1 at the signal output end of the front convex detection circuit and the power input end of the negative pole of a relay K1 at the signal input end of the alarm circuit are connected through wires. The normally closed contact end of a control power output end relay K1 of the alarm circuit, the negative electrode of a storage battery G1 and power input ends 1 and 2 of a fourth power switch J4 are connected through leads respectively, the power output end 3 of the fourth power switch J4, 4 pins and 5, 6 pins and the positive and negative positive pole power input ends of a second set of electric linear sliding table M2 are connected through leads respectively, the power output end 3 of the third power switch J3, 4 pins and 5, 6 pins and the positive and negative positive pole power input ends of the first set of electric linear sliding table M3 are connected through leads respectively. The other end of the second power switch J2 is connected with the positive power input end of the fourth power switch J4 through a lead.

Fig. 1 and 2 show that, when this novel does not use at ordinary times and transportation is accomodate, removal carrier 3 and electronic sharp slip table M2 and M3, electric putter M1 are in split type structure, like this, accomodate and transport more convenient. When detection is needed, the detection personnel can combine the devices together after arriving at the site. After the equipment is finished, this novel front left end (the left end of electronic straight line slip table M2 and wall left end interval 1 centimetre are left) that promotes the detection wall to make laser range finder aim at the wall that needs the detection (the measuring personnel adjust adjustable resistance RP1 and RP2 before the detection, set for the detection threshold value, introduce the principle afterwards). Then the inspector stirs the handle of switch J1 to the left (opens J5 earlier), then, switch J1's 1, 2 feet and 3, 4 feet communicate respectively, electric putter M1 positive and negative poles got electric its movable rod and promotes electronic straight line slip table M3 and M2 upward movement, close switch J1 behind the ceiling on electric straight line slip table M3's casing upper end contact wall face front (the primary function is in preventing follow-up detection, electronic straight line slip table M3 and laser range finder A1 lead to detecting data distortion because of vibration etc. the upper end and the ceiling of electronic straight line slip table M3 contact the back and can play stabilizing action to whole equipment). Then, a detector shifts a handle of the power switch J3 to the right, 1 pin and 2 pins of the power switch J3 are respectively communicated with 5 pins and 6 pins of the power switch J3, and the slide block of the negative electrode and the positive electrode of the electric linear sliding table M3 is electrified to drive the electric linear sliding table M2 and the laser range finder 1 to move downwards to a stop point to enter the detection work (to close the J3). Then, the detector opens switch J6 (establish ties between laser range finder A1's 1 foot and battery G1 positive pole), then laser range finder A1 gets electric work, and stir switch J4's handle left, switch J4's 1, 2 feet and 3, 4 feet communicate respectively, its sliding block that electric linear sliding table M2 positive and negative poles got electric drives laser range finder 1 and moves by electric linear sliding table M2's left dead point right dead point, the in-process laser range finder A1 of motion detects the wall. When the laser range finder A1 moves to a right dead center (J4 is closed), a detector shifts a handle of a power switch pin J3 leftwards, then pins 1 and 2 of the power switch J3 are respectively communicated with pins 3 and 4, a sliding block of the electric linear sliding table M3 is electrified at the positive pole and the negative pole to drive the electric linear sliding table M2 and the laser range finder A1 to move upwards for a certain distance (about 5 cm, the specific distance detector sets as required, the higher the upward height of each time, the larger the interval of the laser range finder A1 from bottom to top for detecting the wall surface flatness, the less detection data, and the more the detection data are vice versa) and the power switch J3 is closed; then, a detector dials a handle of the power switch J4 to the right, 1 pin, 2 pins, 5 pins and 6 pins of the power switch J4 are communicated respectively, the negative pole and the positive pole of the electric linear sliding table M2 are electrified, a sliding block of the negative pole and the positive pole of the electric linear sliding table M2 drives the laser range finder A1 to move from the right dead point to the left dead point of the electric linear sliding table M2, and the laser range finder A1 detects the wall surface in the moving process (the power switch J4 is turned off after the left dead point is reached). The above process is continuously circulated, and the laser range finder A1 detects the flatness data of the wall surface from bottom to top, from left to right and from right to left.

Fig. 1, 2 show, in this novel, laser range finder A1 drives the side-to-side movement at electronic straight line slip table M2, and the voltage signal of 3 foot outputs of its detecting head along with the fluctuation difference of wall, signal output part can take place the synchro variation, and the voltage signal of 3 foot outputs is great relatively when the wall indent, and the voltage signal of 3 foot outputs is little relatively when the wall is forward-convex. When the wall surface through which the probe of the laser range finder A1 passes is relatively not recessed (for example, the recessed part is less than 0.5 cm), a voltage signal output by the pin 3 of the laser range finder A1 is divided by the adjustable resistor RP1 and the resistor R1, then is subjected to current limiting and voltage reduction by the resistor R2, enters the base of the NPN triode Q1 and is less than 0.7V, the NPN triode Q1 cannot be conducted with the collector and output a low level, the relay K1 cannot be powered, the buzzer B cannot be powered to generate sound, and the detected wall surface is normally not recessed or the recessed data does not exceed the threshold value. When the wall surface through which the detection head of the laser range finder A1 passes is relatively large in inner recess (for example, the inner recess is larger than 0.5 cm), a voltage signal output by a pin 3 of the laser range finder A1 is subjected to voltage division by an adjustable resistor RP1 and a resistor R1, then is subjected to current limiting and voltage reduction by a resistor R2 and enters a base of an NPN triode Q1 which is higher than 0.7V, the NPN triode Q1 can conduct a collector to output a low level and enters a negative power input end of a relay K1, the relay K1 can be electrically attracted, a control power input end and a normally open contact end of the relay are electrically opened, and a control power input end and a normally closed contact end of the relay K1 are electrically opened, so that a buzzer B can be electrically sounded to prompt a detection person to detect that the point position of the wall surface is inwardly or outwardly protruded; meanwhile, the relay K1 controls the power input end and the normally closed contact end to be open, so that the power switch J4 is powered off, the electric linear sliding table M2 stops working, the laser range finder A1 stops at the concave or convex point of the wall surface, and a detector can find out the corresponding wall surface point position (namely the position aligned with the detection head of the laser range finder) with problems in time.

As shown in fig. 1 and 2, when the wall surface through which the probe of the laser range finder A1 passes is relatively non-convex (for example, the convex is less than 0.5 cm), the voltage signal output by the pin 3 of the laser range finder A1 is divided by the adjustable resistor RP2 and the resistor R3, and then is subjected to current limiting and voltage reducing by the resistor R4, and enters the base of the NPN triode Q2 to be greater than 0.7v, the NPN triode Q2 turns on the collector to output a low level and enters the base of the NPN triode Q3, and the base of the NPN triode Q3 is not properly forward biased and is cut off, so the relay K1 cannot be powered on, the buzzer B cannot be powered on to sound, and represents that the detected wall surface is not concave normally or the concave data does not exceed the threshold. When the wall surface through which the probe of the laser range finder A1 passes is relatively large in outward protrusion (for example, the outward protrusion is larger than 0.5 cm), a voltage signal output by a pin 3 of the laser range finder A1 is divided by an adjustable resistor RP2 and a resistor R3, then the voltage signal is subjected to current limiting and voltage reduction by a resistor R4 and enters a base of an NPN triode Q2 and is smaller than 0.7V, the NPN triode Q2 is not conducted with a collector and stops outputting a low level and enters a base of an NPN triode Q3, the base of the NPN triode Q3 is subjected to current limiting and voltage reduction by a resistor R5 and is conducted with a proper forward bias voltage, the NPN triode Q3 is conducted and then the collector outputs a low level and enters a negative power supply input end of a relay K1, the relay K1 can be electrically attracted, a control power supply input end and a normally open contact end of the relay K are electrically opened, a control power supply input end and a normally closed contact end are opened, and a wall surface of the buzzer B can be electrically sounded to prompt a detector to detect a point location or an outward protrusion; meanwhile, the relay K1 controls the power input end and the normally closed contact end to be open, so that the power switch J4 is powered off, the electric linear sliding table M2 stops working, the laser range finder A1 stops at the concave or convex point of the wall surface, and a detector can find out the corresponding wall surface point position (namely the position aligned with the detection head of the laser range finder) with problems in time. Through the aforesaid, this novel wall detection point location appears being greater than indent or evagination limiting value time warning suggestion measurement personnel in will detecting to specifically point out the position. When detecting corresponding position indent or evagination, electronic sharp slip table M2 stop motion, need resume the detection time measuring, switch J2 is opened temporarily to the testing personnel, like this, the 12V power positive pole can directly get into switch J4, electronic sharp slip table M2 will drive laser range finder A1 and leave the wall that appears indent or evagination, stagger when the wall point location of evagination or indent appears when laser range finder A1, switch J2 is closed, relevant equipment can normally detect the wall roughness again. After the detection finishes, the staff stirs switch J1 ' S handle right, then, switch S1 ' S1, 2 feet and 5, 6 feet communicate respectively, electric putter M1 negative and positive two poles are electrified its movable rod drives electronic sharp slip table M3 and M2 downstream, the ceiling on electronic sharp slip table M3 ' S casing upper end and the wall before pulls open the interval, and the movable rod moves and closes switch J1 after the lower dead center, then, the staff moves removal carrier 1 right shift position, can detect the wall again (general wall length is greater than electronic sharp slip table M2 transverse length, consequently, after having detected a region of wall perpendicularly, need transverse movement equipment wholly to carry out horizontal seamless detection to the wall). And completely consistent with the steps, after the detection of one transverse region of the wall surface is finished, the wall surface can be transferred to the next detection point position until all the wall surfaces are detected. After detection, the movable carrier 3, the electric linear sliding tables M2 and M3 and the electric push rod M1 are detached, and the storage and the transportation are convenient. It should be noted that, the application can detect the wall surface flatness at a height above the upper end of the shell of the electric push rod M1, and a few wall surface flatness lower than the height, a worker can detect the wall surface flatness by using a general guiding rule when needed, the guiding rule is leaned against the lower end of the wall surface by the detector when in detection, the detector obtains the wall surface flatness data by observing the distance between the guiding rule from top to bottom and the wall surface, and if the distance between a plurality of point positions on the inner side of the guiding rule and the wall surface is larger, the wall surface flatness is unqualified; because the area of the detection object is few (about 50 cm in height), the detection time is short (generally, the detection time of a transverse wall surface with the length of 3 m is only a few minutes), and the height of the wall surface is low, the detection personnel can be effectively ensured to observe the relative uneven points, the detection personnel does not need to ascend, and the risk that the detection personnel falls from a high place is reduced.

Fig. 1, 2 show, in this is novel, measuring personnel adjusted adjustable resistance RP1 and RP 2's resistance value before the detection, when setting for the detection threshold value, when adjustable resistance RP 1's handle adjusted the resistance value left and became small relatively, its and resistance R1's partial pressure is low relatively, resistance R1's partial pressure is big relatively, like this, when follow-up laser range finder A1's detecting head and wall were close relatively, the voltage signal of its 3 foot outputs will be higher than 0.7V, and then relay K1 gets electricity, that is to say this novel wall indent threshold value grow of surveying relevant region. When adjustable resistance RP 1's handle right regulation resistance value became when great relatively, its and resistance R1's partial pressure is great relatively, and resistance R1's partial pressure is little relatively, like this, when follow-up laser range finder A1's detecting head and wall were far away relatively, the voltage signal of its 3 foot outputs just can be higher than 0.7V, and then relay K1 gets electric, that is to say this novel wall indent threshold value grow of surveying relevant region promptly. When adjustable resistance RP 2's handle left adjustment resistance value becomes for a relatively small time, its and resistance R3's partial pressure is low relatively, and resistance R3's partial pressure is big relatively, like this, when follow-up laser range finder A1's detecting head and wall were close relatively, the voltage signal of its 3 foot outputs will be higher than 0.7V, and then relay K1 loses the electricity, that is to say this novel wall evagination threshold value of surveying relevant region diminishes. When adjustable resistance RP 2's handle right regulation resistance value became great relatively, its and resistance R3's partial pressure was high relatively, and resistance R3's partial pressure is little relatively, like this, when follow-up laser range finder A1's detecting head and wall were far away relatively, the voltage signal of its 3 foot outputs just can be higher than 0.7V, and then relay K1 loses the electricity, that is to say this novel wall evagination threshold value grow of relevant region of detection. In the specific adjustment, when the resistance value of the adjustable resistor RP1 or RP2 is adjusted, the buzzer B is just adjusted to sound respectively, then the handle of the adjustable resistor RP1 or RP2 is reversely and slightly rotated to adjust, when the buzzer B does not sound, the resistance value is adjusted to the requirement, and when the follow-up detection point is concave or convex, the buzzer B and the relay K1 are powered on to work. Through above-mentioned all mechanisms and circuit combined action, this is novel to have brought the facility for the measurement personnel, and has improved detection efficiency relatively. In fig. 2, the resistances of the resistors R1, R2, R3, R4, R5 are 10K, 4.7K, 47K, respectively; the model of NPN triodes Q1, Q2 and Q3 is S9013; the buzzer B is an active continuous audible alarm finished product with the model FM 12V; the models of the diodes VD and VD1 are 1N4007; the adjustable resistors RP1 and RP2 are 47K (adjusted to 10K and 10.2K respectively); the laser range finder is a laser range finding sensor with a model number of KLH-03T-20hz, and is provided with three conducting wires, wherein two conducting wires are connected with a power supply, the third conducting wire is a signal wire, and the signal wire can output a dynamically-changed voltage signal along with different distances between a probe head and a detection position in application.

The basic principles and essential features of the invention and the advantages thereof have been shown and described above, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but is capable of other embodiments without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present specification describes embodiments, these embodiments are not intended to encompass only a single embodiment, and such description is merely for clarity, and those skilled in the art will be able to refer to the specification as a whole, and the embodiments may be suitably combined to form other embodiments as will be appreciated by those skilled in the art.

Claims (6)

1. A novel building wall levelness detection device comprises a movable carrier, an electric linear sliding table, a storage battery, a laser range finder and an electric push rod, and is characterized by further comprising a rear concave detection circuit, a front convex detection circuit and an alarm circuit; the electric linear sliding tables are provided with at least two sets, the lower ends of the electric push rods are arranged at the upper end of the movable carrier, the lower ends of the first set of electric linear sliding tables are vertically arranged at the upper ends of the electric push rods, and the second set of electric linear sliding tables are transversely arranged with the sliding blocks of the first set of electric linear sliding tables together; the laser range finder and the sliding block of the second set of electric linear sliding table are installed together; the storage battery, the rear concave detection circuit, the front convex detection circuit and the alarm circuit are arranged in the movable carrier; the signal output end of the laser range finder is electrically connected with the control power supply input end of the front convex detection circuit and the signal input end of the rear concave detection circuit; the signal output ends of the rear concave detection circuit and the front convex detection circuit are electrically connected with the signal input end of the alarm circuit, and the control power output end of the alarm circuit is electrically connected with the power input end of the second set of electric linear sliding table.

2. The novel building wall levelness detecting device according to claim 1, wherein the electric push rod is a reciprocating electric telescopic rod.

3. The novel building wall levelness detection device according to claim 1, wherein the height of the moving carrier, the first set of electric linear sliding table and the electric push rod is lower than the height of the wall when the movable rod of the electric push rod is located at a bottom dead center, and the height of the movable rod of the electric push rod is higher than the height of the wall when the movable rod of the electric push rod is located at a top dead center.

4. The novel building wall surface levelness detection device according to claim 1, wherein the rear concave detection circuit comprises an electric resistor, an NPN transistor, a diode, and an adjustable resistor, one end of the adjustable resistor is connected to one end of the first resistor and one end of the second resistor, the other end of the second resistor is connected to the base of the NPN transistor, the collector of the NPN transistor is connected to the negative electrode of the diode, and the other end of the first resistor is connected to the emitter of the NPN transistor.

5. The novel building wall levelness detecting device according to claim 1, wherein the front protrusion detecting circuit comprises a resistor, an NPN transistor, a diode, and an adjustable resistor, the adjustable resistor is electrically connected to one end of the first resistor and one end of the second resistor, the second resistor is connected to the base of the first NPN transistor, the collector of the first NPN transistor is connected to one end of the third resistor and the base of the second NPN transistor, the collector of the second NPN transistor is connected to the cathode of the diode, and the emitters of the two NPN transistors are connected to the other end of the first resistor.

6. The novel building wall levelness detecting device according to claim 1, wherein the alarm circuit comprises a relay and a buzzer which are electrically connected, a positive power supply input end of the buzzer is connected with a normally open contact end of the relay, and a positive power supply input end of the relay is connected with a control power supply input end.

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