CN210264676U

CN210264676U - Storable drilling verticality detector

Info

Publication number: CN210264676U
Application number: CN201920790729.1U
Authority: CN
Inventors: 邢立辉; 何成; 黄澧
Original assignee: Hubei Zhentai Construction Engineering Quality Testing Co ltd
Current assignee: Hubei Zhentai Construction Engineering Quality Testing Co ltd
Priority date: 2019-05-29
Filing date: 2019-05-29
Publication date: 2020-04-07
Anticipated expiration: 2029-05-29

Abstract

The utility model relates to the technical field of hole verticality measurement, in particular to a storable drilling verticality detector, which comprises a leveling device, a positioning device and a measuring device; the leveling device comprises a horizontal bracket, the positioning device comprises a middle shaft rod, a steering ball and an in-hole support leg, and the measuring device comprises an angle vernier caliper; the middle shaft lever is connected to the horizontal bracket through a steering ball, so that the middle shaft lever can rotate around the horizontal bracket; the support leg in the hole is arranged at the lower end of the middle shaft rod; the angle vernier caliper is respectively connected with the horizontal bracket and the upper end of the middle shaft rod so as to measure the angle between the horizontal bracket and the middle shaft rod; when the detection is carried out, the horizontal support is erected outside the hole, the upper end of the middle shaft rod is exposed out of the hole, the lower end of the middle shaft rod extends into the hole, and the tail end of the support leg in the hole is attached to the wall of the hole, so that the middle shaft rod and the drill hole are collinear. The utility model discloses measurement accuracy is high, but the straightness that hangs down of measurable arbitrary direction to but simultaneous determination direction and concrete numerical value, dry hole and water hole all can use.

Description

Storable drilling verticality detector

[ technical field ] A method for producing a semiconductor device

The utility model relates to a straightness measurement technical field that hangs down in hole, concretely relates to drilling straightness detector that hangs down that can accomodate.

[ background of the invention ]

In the process of machine manufacturing, the verticality requirement of some important positions on holes is generally high, and corresponding measuring means and measuring tools are needed to detect the verticality of the drilled holes so as to judge whether the requirements are met. At present, the methods for detecting the verticality of the drilled hole mainly comprise the following steps:

the first method, hammer ball method: the hammer rope is lifted and slowly put into the hole to reach the measured depth, and when the hammer ball is stable and tightly abuts against the hole wall, the ratio of the distance X between the hammer rope and the hole wall at the hole opening to the lowering depth H of the hammer rope is the perpendicularity of the pile body. However, in actual construction, if the H is large, the hammer ball is stable or not, abuts against the hole wall or the like, so that an observer cannot see or hardly feels the H with hands, and the observation precision is difficult to control, so that the X value is not accurate enough, and the calculated perpendicularity is greatly different from the actual perpendicularity; moreover, the change of the perpendicularity of the hole wall in the range of H is difficult to measure, and when H is large, the local change in the range of H to the hole opening cannot be measured.

Method two, inclinometer method: the inclination measuring device is internally provided with a pointer for indicating the inclination, and the pointer can only be automatically inclined but cannot be automatically returned according to the perpendicularity of the hole wall. During detection, the inclination measuring device is placed into the sealed sleeve, the sleeve and the hole wall fall to the bottom of the hole, the hole is then lifted out, the sleeve is opened, and the inclination of the pointer is read out to obtain the maximum inclination of the hole body. However, if the inclination of the drill hole is too large in a small local area (such as a collapsed hole), the verticality of the whole hole body is not affected, and accurate judgment cannot be performed.

Third, computer self-testing vertical instrument method: some foreign drilling machines are provided with a computer automatic measuring and displaying system, bidirectional electronic inclination measurement and depth measurement, and the computer automatically measures and adjusts the verticality of the drill rod. But the cost of the drilling machine with the computer self-testing vertical instrument is extremely high, and some drilling machines even reach ten million.

A fourth method, a hole detector method: the hole detector with the diameter smaller than 5mm and the length of 5000mm is manufactured, because 50mm/5000mm is 1%, namely the hole detector can be placed under the action of self weight, the verticality is not more than 1%, and if the hole detector is clamped at a certain position under the action of self weight, the verticality of the hole wall is larger than 1%. However, the method cannot measure the specific value and the direction of the perpendicularity of the hole wall, and the hole detector has large volume and weight, needs hoisting equipment for transportation, transportation and use, and has high cost, low efficiency and high danger.

Method five, trial cage checker method: and (3) a test cage detector with the same diameter as the designed pile diameter is welded, the test cage detector is placed to a certain depth, and the perpendicularity of the drilled hole is obtained by measuring the perpendicularity of the lifting rope. However, the test cage is large in size and weight, hoisting equipment is required for transportation, carrying and use, and the test cage is high in cost, low in efficiency and high in danger.

The sixth method comprises ultrasonic detection: and comprehensively detecting the pore-forming quality by utilizing an ultrasonic reflection technology. The ultrasonic probe is placed along the center of a drill hole filled with mud, in the continuous placing process, the transmitting probe transmits ultrasonic pulses perpendicular to the hole wall, the receiving probe receives reflection information of the hole wall, meanwhile, the data of the side walls in 4 directions are measured, and the distance from the hole wall to the probe is measured according to the received sound, so that the verticality of the drill hole can be measured. But the method has high cost, and the domestic instruments are usually about 30 ten thousand; and can only detect the drilling that is full of mud, mud concentration, particulate matter in the mud are very big to the detection effect, can't detect the dry hole straightness that hangs down.

In summary, although various devices are used for detecting the verticality of the drilled hole, the devices have certain defects, mainly including: the method has extremely high requirements on the appearance of detection personnel, is difficult to control in precision and is easy to misjudge; the specific numerical value and direction are difficult to measure; the detection instrument has large volume and mass, needs hoisting equipment for transportation and use, and has high cost, low efficiency and large danger; some electronic instruments are expensive; it is easily influenced by particles in the slurry and can not detect dry holes. Therefore, a simple and practical measuring tool is still lacking at present.

In view of the above, it is an urgent problem in the art to overcome the above-mentioned drawbacks of the prior art.

[ Utility model ] content

The utility model discloses the technical problem that needs to solve is:

in the traditional verticality detection device, the measurement precision is difficult to control, and misjudgment is easy to occur; the specific numerical value and direction are difficult to measure; some detection instruments are large in size and mass, equipment needs to be hoisted during transportation and use, and the detection instruments are high in cost, low in efficiency and large in danger; some cannot detect dry holes, so a simple and practical measuring tool is lacked.

The utility model discloses a following technical scheme reaches above-mentioned purpose:

the utility model provides a storable drilling verticality detector, which comprises a leveling device 1, a positioning device 2 and a measuring device 3; the leveling device 1 comprises a horizontal bracket 11, the positioning device 2 comprises a middle shaft rod 21, a steering ball 22 and n in-hole supporting feet 23, and the measuring device 3 comprises an angle vernier caliper 31; wherein n is more than or equal to 3;

the middle shaft 21 is connected to the horizontal bracket 11 through the steering ball 22, so that the middle shaft 21 can rotate around the horizontal bracket 11; the n in-hole feet 23 are arranged at the lower end of the middle shaft rod 21; the angle vernier caliper 31 is connected to the upper ends of the horizontal bracket 11 and the middle shaft 21, respectively, so as to measure the angle between the horizontal bracket 11 and the middle shaft 21;

when the verticality is detected, the horizontal support 11 is erected outside the hole, the upper end of the middle shaft rod 21 is exposed out of the hole, the lower end of the middle shaft rod 21 extends into the hole, and the tail ends of the n in-hole support legs 23 are tightly attached to the hole wall, so that the middle shaft rod 21 and the drilling shaft are collinear.

Preferably, the angle vernier caliper 31 includes a fixed rod 311, a rotating rod 312 and an angle ruler 313, the fixed rod 311 is pivotally connected to the rotating rod 312, and the angle ruler 313 is used for measuring an angle between the fixed rod 311 and the rotating rod 312;

the fixing rod 311 is fixedly connected to the horizontal bracket 11, the rotating rod 312 is connected to the upper end of the middle shaft rod 21, and when the middle shaft rod 21 rotates, the rotating rod 312 is driven to rotate relative to the fixing rod 311.

Preferably, the measuring device 3 further includes a bearing 32, the bearing 32 is sleeved outside the upper end of the middle shaft rod 21, and one end of the bearing 32 is fixedly connected to the rotating rod 312 of the angle vernier caliper 31, so that the rotating rod 312 rotates around the middle shaft rod 21.

Preferably, the measuring device 3 further includes a caliper rotating base 33, and the caliper rotating base 33 is used for connecting the fixing rod 311 of the angle vernier caliper 31 and the horizontal bracket 11, and can rotate around the central shaft 21.

Preferably, the leveling device 1 further comprises a horizontal bubble 12 and n leveling screws 13, and the horizontal bubble 12 and the n leveling screws 13 are both arranged on the horizontal bracket 11;

the leveling screw 13 is used for adjusting the height of the horizontal bracket 11, so that the horizontal bubble 12 is centered, and the steering ball 22 is located on the plane of the hole, thereby leveling the detector.

Preferably, the horizontal support 11 is provided with a scale, so that when the verticality is detected, the steering ball 22 is located at the center of the hole by reading the scale.

Preferably, the horizontal bracket 11 includes a middle plate 111 and n folding plates 112 uniformly connected to the outer end of the middle plate 111, and the steering ball 22 is disposed on the middle plate 111;

the middle plate 111 and each folding plate 112 are connected by a folding corner ball 14, so that each folding plate 112 can be folded relative to the middle plate 111.

Preferably, the middle shaft 21 comprises an inner core 211 and an outer sleeve 212, and the outer sleeve 212 is sleeved outside the inner core 211;

the upper end of the inner core 211 is connected with the upper end of the outer sleeve 212 through a fixing screw 24, and the lower end of the inner core 211 is longer than the lower end of the outer sleeve 212.

Preferably, the inner hole support leg 23 comprises a first support leg 231 and a second support leg 232, the upper end of the first support leg 231 is connected with the lower end of the outer sleeve 212, the upper end of the second support leg 232 is connected with the lower end of the inner core 211, and the lower end of the first support leg 231 is connected with the lower end of the second support leg 232 to form a connection angle;

wherein, by loosening or tightening the fixing screw 24, the two foot rests of the feet 23 in the hole can be adjusted to be opened or tightened; when the two foot rests of the support leg 23 in the hole are opened, the connecting angle is tightly attached to the hole wall.

Preferably, the leveling device 1, the positioning device 2 and the measuring device 3 are all made of aluminum alloy materials.

The utility model has the advantages that:

the utility model provides an among the borehole verticality detector, can carry out the instrument leveling through levelling device, can carry out the location of hole through rotatable well axostylus axostyle and downthehole stabilizer blade, can carry out angle detection through angle slide caliper, measurement accuracy is high, can measure the straightness that hangs down of arbitrary direction to can confirm direction and concrete numerical value simultaneously, dry hole and water hole all can use; and the whole instrument is light in weight, small in size and low in cost, can be folded and stored when not in use, saves space and provides a simple and practical measuring tool.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be obtained from these drawings without inventive effort.

Fig. 1 is an overall structure diagram of a storable drilling verticality detector provided in an embodiment of the present invention;

fig. 2 is a block diagram illustrating an overall composition of a storable drilling verticality detector according to an embodiment of the present invention;

fig. 3 is a structural diagram of a measuring device in a detecting instrument according to an embodiment of the present invention;

fig. 4 is a structural diagram of a leveling device in a detector according to an embodiment of the present invention;

fig. 5 is a structural diagram of a positioning device in a detector according to an embodiment of the present invention;

fig. 6 is a top view of a storable drilling verticality detector provided in an embodiment of the present invention;

wherein the reference numbers are as follows: the leveling device 1 comprises a horizontal bracket 11, a horizontal bubble 12, a leveling screw 13, a folding corner ball 14, an intermediate plate 111 and a folding plate 112; the positioning device 2 comprises a middle shaft rod 21, a steering ball 22, an inner hole support 23, a fixing screw 24, an inner core 211, an outer sleeve 212, a first support frame 231 and a second support frame 232; the measuring device 3, an angle vernier caliper 31, a bearing 32, a caliper rotating base 33, a fixing rod 311, a rotating rod 312 and an angle ruler 313.

[ detailed description ] embodiments

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, the terms "inside", "outside", "longitudinal", "lateral", "up", "down", "top", "bottom", "left", "right", "front", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention and do not require that the present invention must be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the embodiments of the present invention, the symbol "/" indicates that two functions are simultaneously provided, and the symbol "a and/or B" indicates that the combination between the front and rear objects connected by the symbol includes three cases "a", "B", "a, and B".

Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other. The present invention will be described in detail with reference to the accompanying drawings and examples.

The embodiment of the utility model provides a drilling straightness detector that hangs down that can accomodate can detect the straightness that hangs down of drilling simply conveniently. As shown in fig. 1 and 2, the detector includes leveling device 1, positioner 2 and measuring device 3, leveling device 1 is used for right the detector levels, positioner 2 is used for fixing a position about going on drilling after the leveling is accomplished, measuring device 3 is used for the straightness that hangs down of measuring drilling after the location is accomplished.

Referring to fig. 1, the leveling device 1 comprises a horizontal bracket 11, the positioning device 2 comprises a middle shaft 21, a steering ball 22 and n in-hole supporting feet 23, and the measuring device 3 comprises an angle vernier caliper 31; wherein n is more than or equal to 3. Wherein the middle shaft 21 is connected to the horizontal bracket 11 through the steering ball 22, so that the middle shaft 21 can rotate around the horizontal bracket 11; the n in-hole feet 23 are arranged at the lower end of the middle shaft rod 21; the angle vernier caliper 31 is connected to the upper ends of the horizontal bracket 11 and the middle shaft 21 (here, the portions above the horizontal bracket 11), respectively, so as to measure the angle between the horizontal bracket 11 and the middle shaft 21. In the drawings provided in the embodiments of the present invention, n is 3 as an example, but the present invention is not limited thereto.

When the perpendicularity is detected, as shown in fig. 1, the horizontal support 11 is erected outside the hole, the upper end of the middle shaft rod 21 is exposed out of the hole, the lower end of the middle shaft rod 21 extends into the hole, and the tail ends of the n in-hole support legs 23 are tightly attached to the hole wall, so that the middle shaft rod 21 and the drilling shaft are collinear, and the perpendicularity of the drilling hole can be determined by reading the angle of the angle vernier caliper 31.

The utility model provides an among the above-mentioned straightness detector that hangs down of drilling, can carry out the instrument leveling through levelling device, can carry out the location in hole through rotatable well axostylus axostyle and downthehole stabilizer blade, can carry out angle detection through angle slide caliper, the measurement accuracy of whole device is high, the straightness that hangs down of measurable arbitrary direction to can confirm direction and concrete numerical value simultaneously, be applicable to the straightness that hangs down in dry hole and water hole and detect.

Referring to fig. 3, in the measuring device 3, the angle vernier caliper 31 includes a fixing rod 311, a rotating rod 312 and an angle ruler 313, and an end of the fixing rod 311 is pivotally connected to an end of the rotating rod 312 so as to be relatively rotatable; the angle ruler 313 is used for measuring an angle between the fixed rod 311 and the rotating rod 312. The fixing rod 311 is fixedly connected to the horizontal bracket 11, and the rotating rod 312 is connected to the upper end of the middle shaft rod 21, so that when the middle shaft rod 21 rotates, the rotating rod 312 can be driven to rotate relative to the fixing rod 311, and at this time, the angle between the fixing rod 311 and the rotating rod 312 can be determined by reading the angle ruler 313, and further the perpendicularity of the drilled hole can be determined.

Further, the measuring device 3 further comprises a bearing 32 and a caliper rotating base 33, so that the angle vernier caliper 31 can rotate tightly against the middle shaft rod 21, and the perpendicularity of the drilled hole in any direction can be measured. As shown in fig. 3, the bearing 32 is sleeved outside the upper end of the middle shaft 21, and one end (i.e. the right end in the figure) is fixedly connected to the rotating rod 312 of the angle vernier caliper 31 through a caliper bearing base, so that the rotating rod 312 rotates around the middle shaft 21. With reference to fig. 3 and 6, the caliper rotating base 33 is used to connect the fixing rod 311 of the angle vernier caliper 31 and the horizontal bracket 11, and the caliper rotating base 33 can rotate around the middle shaft 21; that is, the upper end surface of the caliper base 33 is fixedly connected to the fixing rod 311, the lower end surface is movably connected to the horizontal bracket 11, and the caliper base 33 can rotate 360 ° on the plane where the horizontal bracket 11 is located.

With reference to fig. 1 and 4, the leveling device 1 further includes a horizontal bubble 12 and n leveling screws 13, and the horizontal bubble 12 and the n leveling screws 13 are both disposed on the horizontal bracket 11; the leveling screw 13 is used to adjust the height of the horizontal bracket 11, so that the horizontal bubble 12 is centered, and the steering ball 22 is located at the orifice plane, thereby leveling the measuring device, and the horizontal bubble 12 is used to check whether the measuring device is erected horizontally. For the convenience of distance observation, the horizontal bracket 11 is provided with scales so that the steering ball 22 can be positioned at the center of the hole by reading the scales for adjustment before the verticality detection is carried out, namely, when the detector is erected. When the direction of the drill shaft changes, the direction of the middle shaft rod 21 changes, and the steering ball 22 is always positioned in the center of the hole.

Further, in order to facilitate the storage and the taking-out of the measuring apparatus and reduce the space occupied by the measuring apparatus when the measuring apparatus is stored, with reference to fig. 4 and fig. 6, the horizontal bracket 11 includes a middle plate 111 and n folding plates 112 uniformly connected to the outer end of the middle plate 111, and the steering ball 22 is disposed on the middle plate 111; the middle plate 111 and each folding plate 112 are connected by a folding corner ball 14, so that each folding plate 112 can be folded relative to the middle plate 111. Therefore, the horizontal bracket 11 becomes a foldable bracket, and when the detector is not used, the horizontal bracket 11 can be folded and stored through the folding corner ball 14, so that the space is greatly saved.

In the positioning device 2, the feet 23 in the holes can be adjusted to be in a tightened and loosened state. For example, when perpendicularity detection is performed, the support leg 23 in the hole needs to be opened in the hole, so that the tail end of the support leg 23 in the hole can be tightly attached to the wall of the hole, and positioning is realized; when the detector is retracted after the measurement is completed, the stand bar 23 in the hole needs to be tightened, so that the stand bar can be taken out from the hole conveniently, and the space is saved during storage.

With reference to fig. 1 and 5, the middle shaft 21 includes an inner core 211 and an outer sleeve 212, the outer sleeve 212 is sleeved outside the inner core 211, and the length of the inner core 211 is greater than that of the outer sleeve 212; the upper end of the inner core 211 is connected with the upper end of the outer sleeve 212 through a fixing screw 24, and the lower end of the inner core 211 is longer than the lower end of the outer sleeve 212. Downthehole stabilizer blade 23 includes first foot rest 231 and second foot rest 232, the upper end of first foot rest 231 with the lower extreme of overcoat 212 is connected, the upper end of second foot rest 232 with the lower extreme of inner core 211 is connected, the lower extreme of first foot rest 231 with the lower extreme of second foot rest 232 is connected, forms the connection angle.

By loosening or tightening the fixing screw 24, the two foot rests of the support leg 23 in the hole can be adjusted to be opened or tightened, so that the folding and supporting states of the two foot rests can be locked, and the detector is further stabilized. When the two foot rests of the support leg 23 in the hole are opened, the connecting angle is tightly attached to the hole wall, and the middle shaft lever and the drill hole shaft are ensured to be collinear by combining the steering ball 22.

The embodiment of the utility model provides an in, levelling device 1 positioner 2 with each partial structure of measuring device 3 all can adopt high strength, low quality aluminum alloy material for whole instrument quality is light, small, and is with low costs moreover.

In order to further understand the structure of the present invention, the following description is provided for the usage of the detector, specifically as follows:

in a first step, the sonde is erected over the borehole and leveled. Firstly, the folded horizontal bracket 11 is unfolded by adjusting the folding corner ball 14 and is placed according to the scale on the horizontal bracket 11, so that the steering ball 22 is placed in the center of the hole; then, the leveling screw 13 is adjusted to center the horizontal bubble 12, so as to level the detector.

And secondly, positioning the drilled hole. Firstly, loosening the fixing screws 24 to automatically open the two foot supports of the support legs 23 in the hole and cling to the hole wall; the set screw 24 is then tightened to hold the feet 23 in the holes open as shown in figure 6. At this time, the middle shaft rod 21 is collinear with the drilling shaft, and the positioning of the drilling is completed.

And thirdly, measuring the verticality of the drilled hole. After the drilling positioning is completed, the angle between the horizontal bracket 11 and the middle shaft rod 21 can be determined by reading the angle of the angle vernier caliper 31, and then the perpendicularity of the drilling hole is obtained. By the measuring method, perpendicularity in any direction can be measured.

And fourthly, resetting and accommodating the detector. After the measurement is finished, loosening the fixing screw 24 to automatically tighten the two foot supports of the support leg 23 in the hole, and then tightening the fixing screw 24 to keep the support leg 23 in the hole in a tightened state; and the opened horizontal bracket 11 is folded and tightened again by adjusting the folding corner ball 14, so that the detector is accommodated.

In order to protect the detector and ensure the service life of the detector, clean water can be used for cleaning the detector and wiping the detector after the detector is used; and the support leg in the hole and the middle shaft rod are not pressed in the storage process, so that the use is prevented from being influenced by deformation.

In summary, in the drilling verticality detector provided by the utility model, the instrument leveling can be performed through the leveling device, the hole can be positioned through the rotatable middle shaft rod and the support leg in the hole, the angle detection can be performed through the angle vernier caliper, the use is convenient, the measurement precision is high, the verticality in any direction can be measured, the direction and the specific numerical value can be determined simultaneously, and both the dry hole and the water hole can be used; and the whole instrument has light weight, small volume and low cost, can be folded and stored when not in use, and saves space.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A storable drilling verticality detector is characterized by comprising a leveling device (1), a positioning device (2) and a measuring device (3); the leveling device (1) comprises a horizontal bracket (11), the positioning device (2) comprises a middle shaft rod (21), a steering ball (22) and n hole internal support feet (23), and the measuring device (3) comprises an angle vernier caliper (31); wherein n is more than or equal to 3;

the middle shaft rod (21) is connected to the horizontal bracket (11) through the steering ball (22), so that the middle shaft rod (21) can rotate around the horizontal bracket (11); the n in-hole stand bars (23) are arranged at the lower end of the middle shaft rod (21); the angle vernier caliper (31) is respectively connected with the horizontal bracket (11) and the upper end of the middle shaft rod (21) so as to measure the angle between the horizontal bracket (11) and the middle shaft rod (21);

when the verticality is detected, the horizontal support (11) is erected outside the hole, the upper end of the middle shaft rod (21) is exposed out of the hole, the lower end of the middle shaft rod (21) extends into the hole, and the tail ends of the n inner support legs (23) are tightly attached to the hole wall, so that the middle shaft rod (21) and the drill hole shaft are collinear.

2. The storable bore perpendicularity monitor according to claim 1, wherein the angle vernier caliper (31) comprises a fixed rod (311), a rotating rod (312), and an angle scale (313), wherein the fixed rod (311) is pivotally connected with the rotating rod (312), and the angle scale (313) is used for measuring an angle between the fixed rod (311) and the rotating rod (312);

the fixing rod (311) is fixedly connected with the horizontal support (11), the rotating rod (312) is connected with the upper end of the middle shaft rod (21), and when the middle shaft rod (21) rotates, the rotating rod (312) is driven to rotate relative to the fixing rod (311).

3. The storable bore hole verticality detector according to claim 2, wherein the measuring device (3) further comprises a bearing (32), the bearing (32) is sleeved outside the upper end of the central shaft (21), and one end of the bearing is fixedly connected with a rotating rod (312) of the angle vernier caliper (31), so that the rotating rod (312) rotates around the central shaft (21).

4. The storable bore perpendicularity monitor according to claim 2, wherein the measuring device (3) further comprises a caliper rotating base (33), and the caliper rotating base (33) is used for connecting a fixing rod (311) of the angle vernier caliper (31) with the horizontal support (11) and can rotate around the central shaft (21).

5. The storable bore hole verticality detector according to claim 1, wherein the leveling device (1) further comprises a horizontal bubble (12) and n leveling screws (13), the horizontal bubble (12) and the n leveling screws (13) being disposed on the horizontal support (11);

the leveling screw (13) is used for adjusting the height of the horizontal support (11), so that the horizontal air bubble (12) is centered, and the steering ball (22) is located on the plane of the hole, so that the detector is leveled.

6. A storable bore hole verticality monitor according to claim 1, wherein the horizontal support (11) is provided with a scale so that the steering ball (22) is centered in the hole by reading the scale before verticality detection.

7. The storable borehole verticality detector according to claim 1, characterized in that the horizontal support (11) comprises a middle plate (111) and n folding plates (112) evenly connected to the outer ends of the middle plate (111), the steering ball (22) being arranged on the middle plate (111);

the middle plate (111) and each folding plate (112) are connected through a folding corner ball (14), so that each folding plate (112) can be folded relative to the middle plate (111).

8. The storable bore hole verticality monitor according to claim 1, wherein the central shaft (21) comprises an inner core (211) and an outer sleeve (212), the outer sleeve (212) being sleeved outside the inner core (211);

the upper end of the inner core (211) is connected with the upper end of the outer sleeve (212) through a fixing screw (24), and the lower end of the inner core (211) is longer than the lower end of the outer sleeve (212).

9. The storable borehole verticality monitor according to claim 8, wherein the in-hole foot (23) comprises a first foot rest (231) and a second foot rest (232), wherein the upper end of the first foot rest (231) is connected to the lower end of the outer sleeve (212), the upper end of the second foot rest (232) is connected to the lower end of the inner core (211), and the lower end of the first foot rest (231) is connected to the lower end of the second foot rest (232) to form a connecting angle;

wherein the two foot rests of the feet (23) in the hole can be adjusted to be opened or tightened by loosening or tightening the fixing screw (24); when the two foot supports of the support leg (23) in the hole are opened, the connecting angle is tightly attached to the hole wall.

10. The storable bore hole verticality detector according to any one of claims 1 to 9, wherein the leveling device (1), the positioning device (2) and the measuring device (3) are made of aluminum alloy.