CN114295112A

CN114295112A - Accurate angle measuring equipment for building construction

Info

Publication number: CN114295112A
Application number: CN202111530174.5A
Authority: CN
Inventors: 刘国荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-04-08

Abstract

The invention relates to measuring equipment, in particular to angle accurate measuring equipment for building construction. The invention provides an angle accurate measuring device for building construction, which can automatically record and accurately measure. An angle precision measurement device for construction, comprising: support frame, first pivot, carriage, backup pad, detection mechanism and inspection mechanism are connected with the carriage between two support frames, and the equal even rotary type of two support frame downside is equipped with four first pivots, and first pivot has eight, is equipped with the backup pad in the carriage, is equipped with detection mechanism in the backup pad, is equipped with inspection mechanism between backup pad and the carriage. The inclination angle of the wall can be detected through the detection mechanism and the checking mechanism, the measured data is accurate, and the labor can be saved.

Description

Accurate angle measuring equipment for building construction

Technical Field

The invention relates to measuring equipment, in particular to angle accurate measuring equipment for building construction.

Background

When people are in building construction, whether the wall can bear the influence of ambient environment change conditions needs to be considered, particularly, the wall is located on a building wall with large ground fluctuation, geological disasters are easy to occur in some areas, so that the phenomena of settlement, inclination and the like are caused, the use of the building is easily influenced due to the existence of the phenomena, in order to prevent the building from being damaged due to the inclination, people can measure the wall, and the existing measuring equipment mainly contacts a measuring device with the wall and then visually records, so that the accurate measurement cannot be carried out, and therefore, the measuring equipment needs to be designed.

Therefore, it is particularly necessary to design an angle precision measuring device for building construction, which can automatically record and measure precisely, so as to solve the problems existing in the prior art.

Disclosure of Invention

The invention aims to provide an angle precision measuring device for building construction, which can automatically record and accurately measure angles, so as to solve the defect that the existing measuring device provided in the background technology cannot accurately measure the angles.

In order to achieve the purpose, the invention provides the following technical scheme: an angle precision measurement device for construction, comprising: the support frame, first pivot, wheel, carriage, backup pad, detection mechanism and inspection mechanism are connected with the carriage between two support frames, and the equal even rotary type of two support frame downside is equipped with four first pivots, and first pivot has eight, is equipped with the wheel on the first pivot, and the wheel has eight, is equipped with the backup pad on the carriage, is equipped with detection mechanism in the backup pad, is equipped with the inspection mechanism between backup pad and the carriage.

The invention is further configured to: the detection mechanism includes: be equipped with the second pivot in the backup pad, the rotation type is equipped with first movable rod in the second pivot, and the slip type is equipped with the second movable rod on the first movable rod, is equipped with photoelectric sensor on the second movable rod, all is connected with first torsional spring between both sides and the second pivot about the first movable rod, and first torsional spring is around in the second pivot.

The invention is further configured to: the inspection mechanism includes: all be equipped with first gag lever post between backup pad and the carriage both sides, install first gear motor on the bottom in the carriage, the rotary type is equipped with first lead screw between backup pad and the carriage, around there being the belt through the drive wheel between first gear motor and the first lead screw, threaded type is equipped with first fly leaf on the first lead screw, first fly leaf and first gag lever post sliding type are connected, the gliding style is equipped with the adjustable shelf on the first fly leaf, all be connected with first spring between adjustable shelf both sides and the first fly leaf, first spring is around on the adjustable shelf.

The invention is further configured to: still including locking mechanical system, locking mechanical system includes: a first support column is arranged between the upper portion of the support plate and the second rotating shaft, a third rotating shaft is arranged on the first support column in a sliding mode, a second torsion spring is connected between the third rotating shaft and the first support column, and the second torsion spring is wound on the third rotating shaft.

The invention is further configured to: still including record mechanism, record mechanism includes: be equipped with distance sensor on the adjustable shelf, electric putter is installed on first fly leaf upper portion, the electric putter telescopic link is connected with the adjustable shelf, adjustable shelf upper portion rear side is equipped with the second gag lever post, second gear motor is installed on adjustable shelf upper portion, be connected with the second lead screw on the second gear motor output shaft, the second lead screw is connected with the second gag lever post rotary type, the threaded form is equipped with the third movable rod on the second lead screw, the third movable rod is connected with the second gag lever post slidingtype, third movable rod both sides all slidingtype is equipped with the movable block, all be connected with the second spring between two movable blocks and the third movable rod, the second spring is around on the movable block, be equipped with pressure sensor on the adjustable shelf, the pen has all been placed to the adjustable shelf both sides.

The invention is further configured to: still including placing the mechanism, place the mechanism and include: two support frame upsides all are equipped with the stopper, all are equipped with the second support column on two support frames, and two second support column upsides all slidingtype are equipped with two bracing pieces, are connected with the second fly leaf between two bracing pieces of homonymy, and the second fly leaf is connected with the second support column sliding connection of homonymy, all is connected with the third spring between second fly leaf both sides and the adjacent second support column, and the third spring has four, and the third spring is around on the bracing piece.

The invention is further configured to: still including fixed establishment, fixed establishment includes: the upper sides of the two support frames are provided with third support columns, the two third support columns are provided with fourth movable rods in a sliding mode, the outer sides of the two fourth movable rods are provided with third movable plates, fourth springs are connected between the upper side and the lower side of each fourth movable rod and the adjacent third support columns, the number of the fourth springs is four, the fourth springs are wound on the fourth movable rods, and electromagnets are arranged on the two third movable plates.

The invention is further configured to: still including the control box, the control box is installed on carriage upper portion, install the battery in the control box, control module and power module, the battery is this measuring equipment power supply, the output of battery passes through electric connection with power module, there is the power master switch through line connection on the power module, control module and power module pass through electric connection, the last DS1302 clock circuit and the 24C02 circuit of being connected with of control module, pressure sensor, photoelectric sensor and distance sensor all pass through electric connection with control module, electro-magnet and electric putter all pass through relay control module with control module and are connected, first gear motor and second gear motor all pass through direct current motor with control module and just reverse the module be connected.

The invention has the technical effects and advantages that: 1. the inclination angle of the wall can be detected through the detection mechanism and the checking mechanism, the measured data is accurate, and the labor can be saved.

2. Under the drive of the output shaft of the second speed reducing motor, the second screw rod rotates to drive the third movable rod to move downwards, so that the movable block moves downwards to be contacted with the pen, the clamping effect is achieved, and the influence of the movement of the pen on data recording is avoided;

3. when people need take notes corner data, accessible electric putter telescopic link moves forward and drives the adjustable shelf and move forward to make a forward movement with data record on thick paper, first spring is stretched, has reached the effect of record, and people judge the influence that causes because the unevenness of wall to the corner survey according to the data on the thick paper board afterwards.

Drawings

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

Fig. 2 is a schematic perspective view of a second embodiment of the present invention.

Fig. 3 is a schematic perspective view of the detecting mechanism of the present invention.

Fig. 4 is an enlarged schematic perspective view of the invention at a.

Fig. 5 is a schematic perspective view of an inspection mechanism according to the present invention.

Fig. 6 is a perspective view of a first portion of the locking mechanism of the present invention.

Fig. 7 is a perspective view of a second portion of the locking mechanism of the present invention.

Fig. 8 is an enlarged perspective view of the present invention at B.

Fig. 9 is a schematic perspective view of a first part of a recording mechanism according to the present invention.

Fig. 10 is a perspective view of a second part of the recording mechanism of the present invention.

Fig. 11 is an enlarged perspective view of the present invention at C.

Fig. 12 is a schematic perspective view of the placement mechanism of the present invention.

Fig. 13 is an enlarged perspective view of the present invention at D.

Fig. 14 is a perspective view of the fixing mechanism of the present invention.

Fig. 15 is an enlarged perspective view at E of the present invention.

Fig. 16 is a circuit block diagram of the present invention.

Fig. 17 is a circuit diagram of the present invention.

The parts are labeled as follows: 1. a support frame, 2, a first rotating shaft, 3, wheels, 4, a support frame, 5, a support plate, 6, a control box, 7, a detection mechanism, 71, a second rotating shaft, 72, a first movable rod, 73, a second movable rod, 74, a photoelectric sensor, 75, a first torsion spring, 8, an inspection mechanism, 81, a first limiting rod, 82, a first screw rod, 83, a first movable plate, 84, a movable frame, 85, a first spring, 86, a first speed reduction motor, 87, a belt, 9, a locking mechanism, 91, a first support column, 92, a third rotating shaft, 93, a second torsion spring, 10, a recording mechanism, 101, a distance sensor, 102, an electric push rod, 103, a second limiting rod, 104, a second speed reduction motor, 105, a second screw rod, 106, a third movable rod, 107, a second spring, 108, a movable block, 109, a pressure sensor, 1010, a pen, 11, a placement mechanism, 111, and a limiting block, 112. the device comprises a second supporting column, 113, supporting rods, 114, a second movable plate, 115, a third spring, 12, a fixing mechanism, 121, a third supporting column, 122, a fourth movable rod, 123, a third movable plate, 124, a fourth spring, 125 and an electromagnet.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "disposed," "mounted," "connected," "secured," and "coupled" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; the two elements can be directly connected or indirectly connected through an intermediate medium, and the two elements can be communicated with each other or the two elements can interact with each other, so that the specific meaning of the terms in the invention can be understood according to specific situations by a person skilled in the art.

Example 1

Referring to fig. 1-17, an accurate angle measuring device for building construction comprises support frames 1, first rotating shafts 2, wheels 3, support frames 4, support plates 5, a detection mechanism 7 and an inspection mechanism 8, wherein the support frames 4 are connected between the front portions of the two support frames 1, the four first rotating shafts 2 are uniformly and rotatably arranged on the lower sides of the two support frames 1, the wheels 3 are arranged on the first rotating shafts 2, the support plates 5 are arranged on the front sides of the support frames 4, the inspection mechanism 8 is arranged between the support plates 5 and the support frames 4, and the detection mechanism 7 is arranged on the left side of the support plates 5.

The detection mechanism 7 comprises a second rotating shaft 71, a first movable rod 72, a second movable rod 73, a photoelectric sensor 74 and a first torsion spring 75, the second rotating shaft 71 is welded on the left side of the support plate 5, the first movable rod 72 is rotatably arranged on the second rotating shaft 71, the second movable rod 73 is slidably arranged on the first movable rod 72, the photoelectric sensor 74 is arranged on the right side of the second movable rod 73, the first torsion spring 75 is connected between the upper side and the lower side of the first movable rod 72 and the second rotating shaft 71, and the first torsion spring 75 is wound on the second rotating shaft 71.

The checking mechanism 8 includes a first limiting rod 81, a first lead screw 82, a first movable plate 83, a movable frame 84, a first spring 85, a first speed reducing motor 86 and a belt 87, the first limiting rod 81 is disposed on each of the left and right sides between the support plate 5 and the support frame 4, the first speed reducing motor 86 is mounted at the bottom of the support frame 4, the first lead screw 82 is rotatably disposed between the support plate 5 and the support frame 4, the belt 87 is wound between the first speed reducing motor 86 and the first lead screw 82 through a driving wheel, the first movable plate 83 is screwed on the first lead screw 82, the first movable plate 83 is slidably connected with the first limiting rod 81, the movable frame 84 is slidably disposed on the first movable plate 83, the first spring 85 is connected between each of the left and right sides of the rear portion of the movable frame 84 and the first movable plate 83, and the first spring 85 is wound on the movable frame 84.

The support plate is characterized by further comprising a locking mechanism 9, wherein the locking mechanism 9 comprises a first support column 91, a third rotating shaft 92 and a second torsion spring 93, the first support column 91 is arranged between the left side of the upper portion of the support plate 5 and the second rotating shaft 71, the third rotating shaft 92 is slidably arranged on the first support column 91, the second torsion spring 93 is connected between the third rotating shaft 92 and the first support column 91, and the second torsion spring 93 is wound on the third rotating shaft 92.

The recording mechanism 10 comprises a distance sensor 101, an electric push rod 102, a second limit rod 103, a second speed reducing motor 104, a second screw rod 105, a third movable rod 106, a second spring 107, a movable block 108, a pressure sensor 109 and a pen 1010, the distance sensor 101 is arranged on the front side of the movable frame 84, the electric push rod 102 is arranged on the upper portion of the first movable plate 83, the electric push rod 102 is connected with the movable frame 84 through a telescopic rod, the second limit rod 103 is arranged on the rear side of the upper portion of the movable frame 84, the second speed reducing motor 104 is arranged on the rear side of the upper portion of the movable frame 84, the second screw rod 105 is connected with the second limit rod 103 in a rotating manner, the third movable rod 106 is arranged on the second screw rod 105 in a threaded manner, the third movable rod 106 is connected with the second limit rod 103 in a sliding manner, the movable blocks 108 are arranged on the left side and the right side of the third movable rod 106 in a sliding manner, all be connected with second spring 107 between two movable blocks 108 and the third movable rod 106, second spring 107 is around on movable block 108, and the adjustable shelf 84 rear side is equipped with pressure sensor 109, and pen 1010 has all been placed to the adjustable shelf 84 left and right sides, and movable block 108 moves the back and cooperates with pen 1010.

Still including placing the mechanism 11, placing the mechanism 11 including stopper 111, second support column 112, bracing piece 113, second fly leaf 114 and third spring 115, two support frame 1 upside all are equipped with stopper 111, all be equipped with second support column 112 on two support frames 1, two second support column 112 upsides all are slidingtype and are equipped with two bracing pieces 113, be connected with second fly leaf 114 between two bracing pieces 113 of homonymy, second fly leaf 114 and the second support column 112 sliding connection of homonymy, all be connected with third spring 115 between second fly leaf 114 front and back both sides and the adjacent second support column 112, third spring 115 is around on bracing piece 113.

Still including fixed establishment 12, fixed establishment 12 is including the third support column 121, the fourth movable rod 122, the third fly leaf 123, fourth spring 124 and electro-magnet 125, two 1 upside of support frame all are equipped with third support column 121, third support column 121 is iron, all slidingtype be equipped with fourth movable rod 122 on two third support columns 121, two fourth movable rod 122 outsides all are equipped with third fly leaf 123, all be connected with fourth spring 124 between fourth movable rod 122 upper and lower both sides and the adjacent third support column 121, fourth spring 124 is around on fourth movable rod 122, all be equipped with electro-magnet 125 on two third fly leaves 123.

Still including control box 6, control box 6 is installed on 4 top left sides of carriage, install the battery in the control box 6, control module and power module, the battery is this measuring equipment power supply, the output of battery passes through electric connection with power module, there is the power master switch through line connection on the power module, control module and power module pass through electric connection, the last DS1302 clock circuit and the 24C02 circuit of being connected with of control module, pressure sensor 109, photoelectric sensor 74 and distance sensor 101 all pass through electric connection with control module, electro-magnet 125 and electric putter 102 all pass through relay control module with control module and are connected, first gear motor 86 and second gear motor 104 all pass through the direct current motor with control module and just reverse the module be connected.

When people need to accurately measure the angle, people can use the angle accurate measuring equipment for building construction, firstly, people manually move the supporting frame 4 to enable the supporting frame 1 to move, the first rotating shaft 2 and the wheels 3 rotate, when the movable frame 84 contacts the wall, people stop moving the supporting frame 4, then people manually press the power main switch to electrify the device, the movable frame 84 contacts the wall to enable the first movable rod 72 and the second movable rod 73 to contact the wall, then people move the second movable rod 73 forwards, when the photoelectric sensor 74 cannot sense light, the wall corner is proved to be vertical, when the light sensed by the photoelectric sensor 74 is lower than a preset value, the wall corner is proved to be not vertical, the control module controls the output shaft of the first speed reducing motor 86 to rotate for three seconds and then to be closed, the output shaft of the first speed reducing motor 86 rotates to drive the belt 87 to rotate, so that the first screw 82 rotates, the first movable plate 83 moves upwards, the movable frame 84 moves upwards, when the movable frame 84 moves to the convex part of the wall, the movable frame 84 moves backwards, the first spring 85 is compressed, when the movable frame 84 moves to the plane of the wall, the first spring 85 resets to drive the movable frame 84 to reset, when the measurement is completed, people first manually move the second movable rod 73 backwards, then people manually rotate the first movable rod 72 backwards to drive the second movable rod 73 to rotate, the first torsion spring 75 is torsionally deformed, at this time, the light sensed by the photoelectric sensor 74 is higher than the preset value, the control module controls the output shaft of the first speed reducing motor 86 to rotate backwards for three seconds and then is closed, the output shaft of the first speed reducing motor 86 drives the belt 87 to rotate backwards, so that the first screw 82 rotates backwards, and the first movable plate 83 and the movable frame 84 move downwards, the person manually depresses the power master switch to de-energize the device, and then releases the first movable bar 72, thereby allowing the first torsion spring 75 to return to bring the second movable bar 73 and the first movable bar 72 back to their original positions.

When people rotate the first movable rod 72 backwards, the first movable rod 72 is in contact with the third rotating shaft 92, so that the third rotating shaft 92 moves upwards, the second torsion spring 93 is compressed, and when the third rotating shaft 92 contacts the round hole in the first movable rod 72, the second torsion spring 93 resets to drive the third rotating shaft 92 to reset, so that the clamping effect is realized, and the manpower is saved.

When people hold two pieces of thick paper and respectively put the two pieces of thick paper on the two support frames 1 to be in contact with the pen 1010 on the same side, after people manually press a power supply main switch, people manually press the pressure sensor 109, when the pressure sensed by the pressure sensor 109 is higher than a preset value, the control module controls the output shaft of the second speed reducing motor 104 to rotate for three seconds and then close, the output shaft of the second speed reducing motor 104 drives the second screw rod 105 to rotate, so that the third movable rod 106 moves downwards, the movable block 108 moves downwards, when the movable block 108 is in contact with the pen 1010, the movable block 108 moves upwards, so that the second spring 107 is compressed, the clamping effect is achieved, the situation that the pen 1010 moves during recording to influence recorded data is avoided, the movable frame 84 moves upwards to drive the distance sensor 101 to move upwards, when the movable frame 84 moves to a recess of a wall body, the distance sensed by the distance sensor 101 is higher than the preset value, so that the control module controls the telescopic rod of the electric push rod 102 to shorten forwards, the telescopic rod of the electric push rod 102 drives the movable frame 84 to move forwards, thereby the first spring 85 is stretched, the pen 1010 moves forwards to record data on thick paper, and the recording effect is realized, then when the movable frame 84 moves to the plane of the wall, the distance sensed by the distance sensor 101 reaches a preset value, the control module controls the telescopic rod of the electric push rod 102 to extend backwards to the initial position and then close, the telescopic rod of the electric push rod 102 drives the movable frame 84 to move backwards, the first spring 85 plays a role of buffering, so that the pen 1010 moves backwards, when people need to replace the pen 1010, people press the pressure sensor 109 again, the pressure sensed by the pressure sensor 109 is higher than the preset value, the control module controls the output shaft of the second speed reducing motor 104 to rotate backwards for three seconds and then close, the output shaft of the second speed reducing motor 104 drives the second screw 105 to rotate backwards, therefore, the third movable rod 106 moves upwards, the second spring 107 resets to drive the movable block 108 to reset, then a new pen 1010 is placed on the movable frame 84, and the control module controls the telescopic rod of the electric push rod 102 to move when the program only sets the distance sensor 101 to move upwards, so that the telescopic rod of the electric push rod 102 does not move when the distance sensor 101 moves downwards.

At first, people manually move the second movable plate 114 to the outside, thereby make the bracing piece 113 move to the outside, and then the third spring 115 is compressed, afterwards, people put the thick paper between the second support column 112 of stopper 111 and homonymy, after placing and accomplishing, people loosen the second movable plate 114, thereby make the third spring 115 reset and drive the bracing piece 113 to reset, and then the second movable plate 114 resets, the effect of pressing from both sides tight thick paper has been reached, when people need take out the thick paper, people move the second movable plate 114 to the outside can, afterwards people judge the influence that causes because the unevenness of wall to the wall angle measurement according to the data on the thick paper board.

When people manually press the pressure sensor 109, the control module controls the electromagnet 125 to start at the same time, because the third supporting column 121 is iron, therefore, the electromagnet 125 moves to the inner side and is attracted to the third supporting column 121 on the same side, so that the third movable plate 123 and the fourth movable rod 122 move to the outer side, and then the fourth spring 124 is compressed, the effect of fixing thick paper is achieved, when the second speed reduction motor 104 is closed, the control module controls the electromagnet 125 to close, so that the fourth spring 124 resets to drive the fourth movable rod 122 to reset, and thereby the third movable plate 123 resets.

The above-mentioned embodiments are merely preferred embodiments of the present invention, which are not intended to limit the scope of the present invention, and therefore, all equivalent changes made by the contents of the claims of the present invention should be included in the claims of the present invention.

Claims

1. The utility model provides an accurate measuring equipment of angle that construction used, characterized by includes: support frame (1), first pivot (2), wheel (3), carriage (4), backup pad (5), detection mechanism (7) and inspection mechanism (8), be connected with carriage (4) between two support frames (1), two equal even rotary types of support frame (1) downside are equipped with four first pivot (2), first pivot (2) have eight, be equipped with wheel (3) on first pivot (2), wheel (3) have eight, be equipped with backup pad (5) on carriage (4), be equipped with detection mechanism (7) on backup pad (5), be equipped with inspection mechanism (8) between backup pad (5) and carriage (4).

2. An angle precision measuring apparatus for building construction according to claim 1, characterized in that the detecting mechanism (7) comprises: be equipped with second pivot (71) on backup pad (5), the last rotation type of second pivot (71) is equipped with first movable rod (72), and the slip type is equipped with second movable rod (73) on first movable rod (72), is equipped with photoelectric sensor (74) on second movable rod (73), all is connected with first torsional spring (75) between both sides and second pivot (71) about first movable rod (72), and first torsional spring (75) are around on second pivot (71).

3. An angle precision measuring apparatus for building construction according to claim 2, characterized in that the checking means (8) comprises: all be equipped with first gag lever post (81) between backup pad (5) and carriage (4) both sides, install first gear motor (86) on the bottom in carriage (4), the rotary type is equipped with first lead screw (82) between backup pad (5) and carriage (4), around having belt (87) through the drive wheel between first gear motor (86) and first lead screw (82), screw thread formula is equipped with first fly leaf (83) on first lead screw (82), first fly leaf (83) and first gag lever post (81) sliding type are connected, the slip formula is equipped with adjustable shelf (84) on first fly leaf (83), all be connected with first spring (85) between adjustable shelf (84) both sides and first fly leaf (83), first spring (85) are around on adjustable shelf (84).

4. An angle precision measuring apparatus for building construction according to claim 3, further comprising a locking mechanism (9), the locking mechanism (9) comprising: a first support column (91) is arranged between the upper portion of the support plate (5) and the second rotating shaft (71), a third rotating shaft (92) is arranged on the first support column (91) in a sliding mode, a second torsion spring (93) is connected between the third rotating shaft (92) and the first support column (91), and the second torsion spring (93) is wound on the third rotating shaft (92).

5. An angle precision measuring apparatus for building construction according to claim 4, further comprising a recording mechanism (10), the recording mechanism (10) comprising: a distance sensor (101) is arranged on the movable frame (84), an electric push rod (102) is arranged on the upper portion of the first movable plate (83), an expansion rod of the electric push rod (102) is connected with the movable frame (84), a second limiting rod (103) is arranged on the rear side of the upper portion of the movable frame (84), a second speed reducing motor (104) is arranged on the upper portion of the movable frame (84), a second lead screw (105) is connected onto an output shaft of the second speed reducing motor (104), the second lead screw (105) is rotatably connected with the second limiting rod (103), a third movable rod (106) is arranged on the second lead screw (105) in a threaded manner, the third movable rod (106) is slidably connected with the second limiting rod (103), movable blocks (108) are arranged on two sides of the third movable rod (106) in a sliding manner, second springs (107) are connected between the two movable blocks (108) and the third movable rod (106), and the second springs (107) are wound on the movable blocks (108), a pressure sensor (109) is arranged on the movable frame (84), and pens (1010) for recording data are arranged on two sides of the movable frame (84).

6. The accurate angle measuring device for building construction according to claim 5, further comprising a placing mechanism (11), wherein the placing mechanism (11) comprises: two support frame (1) upside all are equipped with stopper (111), all be equipped with second support column (112) on two support frame (1), two second support column (112) upside all slidingtype are equipped with two bracing pieces (113), be connected with second fly leaf (114) between two bracing pieces (113) of homonymy, second fly leaf (114) and second support column (112) sliding connection of homonymy, all be connected with third spring (115) between second fly leaf (114) both sides and adjacent second support column (112), third spring (115) have four, third spring (115) are around on bracing piece (113).

7. The accurate angle measuring device for building construction according to claim 6, further comprising a fixing mechanism (12), wherein the fixing mechanism (12) comprises: two support frames (1) upside all are equipped with third support column (121), all slidingtype on two third support columns (121) is equipped with fourth movable rod (122), two fourth movable rod (122) outsides all are equipped with third fly leaf (123), all be connected with fourth spring (124) between fourth movable rod (122) upper and lower both sides and adjacent third support column (121), fourth spring (124) have four, fourth spring (124) are around on fourth movable rod (122), all be equipped with electro-magnet (125) on two third fly leaves (123).

8. The accurate angle measuring device for building construction according to claim 7, characterized in that it further comprises a control box (6), the control box (6) is installed on the upper portion of the supporting frame (4), a storage battery, a control module and a power module are installed in the control box (6), the storage battery supplies power to the measuring device, the output end of the storage battery is electrically connected with the power module, the power module is connected with a main power switch through a circuit, the control module is electrically connected with the power module, the control module is connected with a DS1302 clock circuit, a 24C02 circuit and a pressure sensor (109), photoelectric sensor (74) and distance sensor (101) all pass through electric connection with control module, and electro-magnet (125) and electric putter (102) all pass through relay control module with control module and are connected, and first gear motor (86) and second gear motor (104) all pass through direct current motor positive and negative module with control module and are connected.