CN210400391U - Slope control instrument for slope excavation - Google Patents

Abstract

The utility model provides a slope control instrument for slope excavation, which comprises a bracket and a level gauge rotatably arranged on the bracket, wherein the level gauge is provided with a laser transmitter, the bracket comprises two vertical plates which are oppositely arranged, two opposite sides of the level gauge are rotatably connected with the two vertical plates through a first rotating shaft in a one-to-one correspondence manner, and the first rotating shaft is horizontally arranged; the bracket is horizontally and rotatably connected to a height-adjustable base through a gear assembly. The utility model discloses a laser beam that sends vertical angle, horizontal angle and height all can be adjusted accurately carries out real-time and accurate calibration to the slope of putting the slope excavation, has improved the quality of putting the slope excavation, has accelerated construction speed, has practiced thrift the cost, has saved the time limit for a project; the intelligent control instrument is realized, the potential safety hazard is reduced, and the safety accidents are reduced by arranging the display instrument and the alarm device; by selecting the green light level meter, the controller is not limited in use and higher in utilization rate.

Description

Slope control instrument for slope excavation

Technical Field

The utility model belongs to the building construction measurement field especially relates to a slope control appearance of slope excavation is put to semi-automatization and practicality are stronger.

Background

In order to prevent the collapse of the earth wall and ensure the construction safety, when the excavation exceeds a certain depth or the fill exceeds a certain height, the edge of the excavation should be released to form a sufficient slope, and in order to keep the edge from being stable, the width of the upper opening of the excavation needs to be increased during the construction so that the excavation surface keeps a certain gradient. Slope stability is the basic guarantee of construction safety.

The conventional slope gradient control method mainly comprises two methods: one method is to manually measure by adopting a bamboo pole and a plumb bob, and the method needs to dig a section of bamboo pole and plumb bob, has low construction speed, low measurement precision, long construction period and high cost, and the construction effect depends on the manual work; the other method is to adopt mechanical one-time excavation forming, the method is easy to overetch, which causes additional cost of slope excavation and backfilling, and potential safety hazards and safety accidents are easy to cause due to the unfavorable stable state of the slope.

Although some measuring instruments for slope gradient control are available in the market, the measuring instruments cannot realize real-time measurement, the slope gradient still needs to be rechecked in sections, the frequency of the rechecking of the slope measurement needs to be increased because the excavator is in dynamic operation all the time, otherwise, once the slope is in error, the monitoring mode is difficult to adjust, and the monitoring mode consumes energy and is low in efficiency.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model provides a put slope controller of slope excavation, this controller can send height, vertical angle and the equal adjustable laser of horizontal angle, has improved measurement accuracy to can carry out real-time supervision to the slope, reach the purpose that improves excavation quality, speed and practice thrift the cost and save the time limit for a project.

In order to achieve the above object, the present invention is specifically realized by the following technical solutions: the utility model provides a slope control appearance of putting slope excavation, includes the support and rotationally install in the spirit level of support, the spirit level is equipped with laser emitter, the support is including the two vertical boards that set up relatively, the relative both sides one-to-one ground of spirit level rotate through first pivot connect in two vertical board, first pivot level sets up.

The level can emit laser beams along the appointed inclined surface by the way that the rotating shaft drives the level to rotate, so that the aim of controlling the gradient in real time is fulfilled.

The utility model discloses put slope controller's of slope excavation further improvement lie in, be equipped with the confession on the perpendicular board first pivot is inserted the first mounting hole of establishing, first pivot is worn out a pot head of first mounting hole is equipped with a first gear, be equipped with on the perpendicular board with first gear engagement's second gear, the second gear through first dead axle rotate connect in the outside of perpendicular board.

Through gear drive, make the adjustment of the actual swing angle of spirit level more accurate, and make the spirit level can keep in arbitrary swing state, and then make the face of inclining angle and the design slope of the laser beam that sends keep unanimous, improved the quality of putting the slope excavation.

The utility model discloses put the slope control appearance of slope excavation and improve further and lie in, the bottom of support is connected with a height-adjustable's base.

Through height-adjustable's base, realize the height adjustment to the spirit level to make the laser beam that launches can throw to the assigned position.

The utility model discloses put the slope control appearance of slope excavation's further improvement and lie in, the base includes the base and is fixed in hydraulic pressure jacking device on the base.

Automatic height adjustment is realized through the hydraulic jacking device, and the hydraulic jacking device is more convenient and labor-saving.

The utility model discloses put slope controller's of slope excavation further improvement and lie in, the base with be equipped with a levelling device between the hydraulic jacking device, levelling device including connect in the upper plate of base with connect in the hypoplastron of hydraulic jacking device, the upper plate with through foot screwed connection between the hypoplastron, be equipped with the leveling vacuole on the hypoplastron.

The levelness of the control instrument is adjusted through the leveling device, so that the height and the swing angle of the level instrument can be adjusted more accurately.

The utility model discloses put slope controller's of slope excavation further improvement and lie in, the support is including connecting in two erect the bottom plate of board bottom, the top of base is fixed with the second dead axle, the bottom plate rotationally connect in the second dead axle.

The horizontal angle of the level can be easily adjusted by the structure without rotating the whole control instrument, so that the level can be positioned more easily and labor-saving.

The utility model discloses put slope control appearance of slope excavation's further improvement lie in, the bottom plate pass through the gear assembly connect with rotating in the second dead axle, the gear assembly includes third gear and fourth gear, the third gear is fixed in the bottom of bottom plate and seted up the confession the second dead axle is inserted the second mounting hole of establishing, the fourth gear through the third dead axle rotationally set up in the top of base, the fourth gear mesh in the third gear.

Through above-mentioned gear assembly, make the adjustment of the horizontal angle of spirit level more accurate, and make the spirit level can keep in arbitrary rotating state, labour saving and time saving and angle are accurate, make the laser beam that the spirit level emitted can be the accurate towards the position that awaits measuring.

The utility model discloses put slope control appearance of slope excavation's further improvement lie in, the gear assembly still including place in the fifth gear at base top with place in fixed plate on the fifth gear, the confession has been seted up to the fifth gear the second dead axle is inserted the third mounting hole of establishing, the second dead axle with the third dead axle is fixed in the fixed plate.

Through the structure, the third gear and the fifth gear can realize coarse adjustment and fine adjustment of the horizontal angle of the level gauge by means of transmission of the fourth gear, so that the accuracy of horizontal angle adjustment is further improved, and the rotating process is easier and controllable.

The utility model discloses put the slope control appearance of slope excavation's further improvement to lie in, still including being used for showing the display instrument of the height of spirit level and angle, with the alarm device that the display instrument is connected.

The display of the display instrument is more favorable for positioning and adjusting the laser beam, and in addition, the display instrument is connected with the alarm device, so that the controller can give an alarm when the display parameters of the display instrument are out of limit when the controller collapses at the placing position of the controller.

The utility model discloses put the slope control appearance of slope excavation's further improvement and lie in, the spirit level is green light spirit level.

The green light level may emit a green laser that is also visible during the day, so that the control may also be used for day work.

To sum up, the utility model discloses a but not limited to following beneficial effect:

1. the utility model discloses a laser beam that sends vertical angle, horizontal angle and height all can be adjusted accurately carries out real-time and accurate calibration to the slope of putting the slope excavation, has improved the quality of putting the slope excavation, has accelerated construction speed, has saved the time limit for a project, has practiced thrift the cost;

2. the utility model discloses a setting of display instrument and alarm device makes the controller more intelligent, is convenient for to the accurate adjustment and the location of laser beam, can realize automatic alarm to abnormal conditions, has reduced the potential safety hazard, has reduced the incident.

3. The utility model discloses the green light level appearance of chooseing for use can send the green laser that also can clear sign daytime, makes the use of slope control appearance not restricted.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the following briefly introduces the drawings that are needed to describe and summarize the embodiments:

fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of a middle gear assembly of the present invention;

fig. 3 is a schematic view of the connection state of the fixing plate with the second fixed shaft and the third fixed shaft;

in the figure: a support 10; a vertical plate 11; a base plate 12; a first rotating shaft 21; a first gear 22; a second gear 23; a base 30; a base 31; a hydraulic jacking device 32; a leveling device 33; a foot spiral 331; a second leveling vacuole 332; a level gauge 40; a first leveling vacuole 41; a laser transmitter 42; a gear assembly 50; a second fixed shaft 51; a third gear 52; a fourth gear 53; a fifth gear 54; a third fixed shaft 55; a fixed plate 56; a notch 561; a fixed frame 562; and a display 60.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

Because conventional slope control method all needs the segmentation measurement, construction speed is slow, and measurement accuracy is low, and can't realize real-time measurement, and the side slope stability is the basic assurance of construction safety, and therefore the control of side slope is especially important, the utility model develops a slope controller of putting slope excavation, and height, vertical angle and the equal adjustable laser beam of horizontal angle can be launched to this controller to carry out real-time and accurate demarcation to the slope of putting slope excavation, improved excavation quality, accelerated construction speed, practiced thrift the cost, saved the time limit for a project.

The slope controller for slope excavation provided by the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1, a slope control instrument for slope excavation comprises a support 10 and a level 40 rotatably mounted on the support 10, wherein the level 40 is provided with a laser emitter 42, the laser emitter 42 can emit horizontally arranged laser beams, the support 10 comprises two vertical plates 11 which are arranged oppositely, two opposite sides of the level 40 are connected with the two vertical plates 11 in a one-to-one correspondence manner through a first rotating shaft 21, and the first rotating shaft 21 is arranged horizontally.

Specifically, the first rotating shaft 21 includes two parts, one end of each of the two parts is rotatably connected to the two vertical plates 11, the other end of each of the two parts is fixed to the middle upper portion of each of the two opposite side surfaces of the level 40, so that the surface provided with the laser emitter 42 serves as the front surface, the length of the horizontal arrangement of the laser beams is controlled by adjusting the size of the light outlet of the laser emitter 42, and the center of the top surface of the level 40 is provided with a first leveling bubble 41 for checking the flatness of the level 40.

Furthermore, a first mounting hole for inserting the first rotating shaft 21 is formed in the vertical plate 11, a larger first gear 22 is sleeved at one end of the first rotating shaft 21 penetrating out of the first mounting hole, a smaller second gear 23 meshed with the first gear 22 is arranged on the vertical plate 11, and the second gear 23 is fixed on the support 10 through a first fixed shaft. Through the gear transmission mode, the rough adjustment of the first gear 22 and the fine adjustment of the second gear 23, the adjustment of the actual swing angle of the level gauge 40 is more accurate, the level gauge 40 can be kept in any swing state, the inclination angle of the emitted laser beam is kept consistent with the design gradient, and the quality of slope excavation is improved. In order to further improve the accuracy of the swing angle, it is preferable to provide angle scales on the outer peripheral surfaces of the first gear 22 and the second gear 23, as a matter of course, for the convenience of viewing the swing angle.

In order to better keep the level 40 in any swing state, a locking device may be arranged on the bracket 10, and the locking device may be an adjustable hoop which is sleeved on the first rotating shaft 21 and fixed on the bracket, so that the diameter of the hoop in a relaxed state is larger than that of the first rotating shaft 21, and when locking is required, the hoop is contracted to hoop the first rotating shaft 21, thereby achieving the purpose of preventing the first rotating shaft 21 from rotating; the locking device can also adopt a bolt or a mandril to directly block or resist the level 40, thereby achieving the purpose of locking the rotation of the level; of course, an intelligent structure may be adopted, the first rotating shaft 21 is set as an electric rotating shaft, the electric motor is used to control whether the first rotating shaft 21 rotates, and the actual rotating angle and the information of the feedback rotating angle and the like may be controlled.

Further, the bottom of support 10 is connected with a height-adjustable's base 30, base 30 includes base 31 and is fixed in hydraulic pressure jacking device 32 on the base 31, base 31 with be equipped with leveling device 33 between the hydraulic pressure jacking device 32, leveling device 33 including connect in the upper plate of base 31 with connect in the hypoplastron of hydraulic pressure jacking device 32, the upper plate with connect through foot spiral 331 between the hypoplastron, be equipped with second leveling vacuole 332 in the middle of the hypoplastron.

Specifically, the hydraulic jacking device 32 is provided with a start button, a pause button and a descending button, the start button, the pause button and the descending button are controlled to work through an external controller, so that the start button, the pause button and the descending button of the hydraulic jacking device 32 are controlled, in addition, the hydraulic jacking device 32 is only used for fine adjustment of the vertical height of the level gauge 40, the adjustment range of the hydraulic jacking device 32 is suggested to be 0-300 mm, for coarse adjustment of the vertical height, in the embodiment, a plurality of mounting holes are selected to be formed in the base 31 for mounting a traditional triangular support, coarse adjustment of the vertical height of the level gauge 40 is realized by adjusting the height of the triangular support, and the triangular support is used for facilitating retraction; the upper plate and the lower plate are triangular steel plates which are oppositely arranged, the number of the foot screws 331 is three, the foot screws 331 are respectively and correspondingly connected to three corners of the upper plate and the lower plate, the levelness of the leveling device 33 is adjusted by rotating different foot screws 331 and matching with the second leveling liquid bubbles 332, and the adjustment of the integral levelness of the controller is realized by the leveling device and the leveling device 33.

The height of the level gauge 40 is precisely adjusted by the height-adjustable base 30, so that the laser beam emitted from the level gauge 40 can be accurately projected to a designated position.

Further, as shown in fig. 2, the bracket 10 includes a bottom plate 12 connected to the bottom of the two vertical plates 11, a second fixed shaft 51 is fixed to the top of the base 30, and the bottom plate 12 is rotatably connected to the second fixed shaft 51. The horizontal angle of the level gauge 40 can be easily adjusted by the structure, and the whole control instrument does not need to be rotated, so that the level gauge 40 can be positioned more easily and labor-saving in the process of transmitting.

Further, as shown in fig. 3, the bottom plate 12 is rotatably connected to the second fixed shaft 51 through a gear assembly 50, the gear assembly 50 includes a third gear 52 and a fourth gear 53, the third gear 52 is fixed to the bottom of the bottom plate 12 and is provided with a second mounting hole for the second fixed shaft 51 to be inserted, the fourth gear 53 is rotatably disposed on the top of the base 30 through a third fixed shaft 55, and the fourth gear 53 is meshed with the third gear 52.

Specifically, the third gear 52 is a boss with a large top and a small bottom, the fourth gear 53 is a boss with a small top and a large bottom, and the lower part of the third gear 52 and the upper part of the fourth gear 53 are meshed with each other. Through gear drive, make the adjustment of the horizontal angle of spirit level 40 more accurate, and make spirit level 40 can keep in arbitrary rotation state, labour saving and time saving and angle are accurate, make the laser beam that spirit level 40 sent can be accurate towards the position that awaits measuring.

Further, the gear assembly 50 further includes a fifth gear 54 disposed on the top of the base 30 and a fixing plate 56 disposed on the fifth gear 54, the fifth gear 54 is provided with a third mounting hole for the second fixed shaft 51 to be inserted, and the second fixed shaft 51 and the third fixed shaft 55 are fixed to the fixing plate 56.

Specifically, the fifth gear 54 is a boss with a small top and a large bottom, the upper part of the fifth gear 54 is meshed with the lower part of the fourth gear 53, and the upper part of the fifth gear 54 has a smaller diameter than the lower part of the third gear 52, that is, one rotation of the third gear 52 around the second fixed shaft 51 corresponds to multiple rotations of the fifth gear 54 around the second fixed shaft 51. With the above structure, the third gear 52 can be used as a coarse adjustment screw for the horizontal angle, and the fifth gear 54 can be used as a fine adjustment screw for the horizontal angle, and in order to make the adjustment of the horizontal angle more accurate, it is preferable to provide angle scales on the upper outer circumferential surface of the third gear 52 and the lower outer circumferential surface of the fifth gear 54; in addition, in order to ensure the stability of the gear assembly and the smoothness of transmission among the gears, the fixing plate 56 selected in this embodiment is a circular disc, the circular disc is placed on the top surface of the fifth gear 54, an avoiding gap 561 is formed at a position corresponding to the upper part of the fifth gear 54, the upper part of the fifth gear 54 penetrates out from the bottom of the fixing plate 56 through the gap 561, and the position where the second fixed shaft 51 penetrates out through the third mounting hole is fixedly connected with the fixing plate 56 through a semi-cylindrical fixing frame 562 which is half-covered on the outer edge of the fifth gear 54; the third fixed shaft 55 is fixed to the fixing plate 56 on the side opposite to the fixed frame 562. When the third gear 52 is rotated, the bottom plate 12 synchronously rotates along with the third gear 52, the base 30 is kept still, and the rough adjustment process of the horizontal angle of the level gauge 40 is realized; when the fifth gear 54 is rotated, the fifth gear 54 drives the fourth gear 52 to rotate, the fourth gear 52 drives the third gear 52 to rotate, the base 30 is kept still in the whole process, and the fine adjustment process of the horizontal angle of the level gauge 40 is realized. Through the gear assembly 50, coarse adjustment and fine adjustment of the level gauge 40 can be realized, so that the horizontal angle adjustment is more accurate, and the laser beam can accurately face to the position to be measured.

In order to better maintain the level 40 in any rotation state, a locking device may be added to lock the gear assembly 50 when it is needed, and the locking device is configured to be conventional in the art, and will not be described herein.

Further, the device also comprises a display 60 for displaying the height and the angle of the level 40 and an alarm device connected with the display 60.

Specifically, the height information may be obtained by the hydraulic jacking device 32, the vertical angle (and the tilt angle of the laser beam) information may be obtained by the first rotating shaft 21, the horizontal angle information may be obtained by the gear assembly 50, the display 60 and the alarm device are both disposed on the bottom plate 12 and located a certain distance below the level 40, the corresponding locking device may be connected to the display 60, a program of the display 60 is set, so that the display 60 automatically starts a recording function when both the two locking devices are in a locking state, records the current coordinate parameters (including height, vertical angle, and horizontal angle) of the level 40, in addition, a change range of the coordinate parameters is set in the program of the display 60, and when the actual coordinate parameters of the level 40 change and exceed the change range, the display 60 sends an overrun signal to the alarm device, the alarm device sends an alarm after receiving the overrun signal so as to warn field constructors to stop digging, and simultaneously the alarm device feeds back an abnormal alarm signal to a receiving end (the receiving end can be a control system of the digging machine or an external controller).

Further, it is preferred that the level 40 be a green light level, since the green light level may emit a green laser that is also visible during the day, so that the control may also be used for day time operations.

The main operation steps of using the slope controller to carry out slope control are as follows:

1. determining the setting position of the gradient controller:

and calculating the distance between the laser beam emitting point and the side line of the foundation pit according to the height of the laser beam emitting point (namely the center of a light emitting port of the laser emitter 42) from the ground and the designed slope of slope excavation, erecting a tripod according to the distance and installing a slope controller. Specifically, the height of the laser beam emission point from the ground is: the initial height of the tripod plus the distance from the center of the light-emitting port of the laser transmitter 42 to the bottom surface of the base 31 (considering the state of the hydraulic jacking device 32, it is recommended to lower or raise the hydraulic jacking device 32 to the maximum).

2. Positioning laser beams, and positioning in three parts:

(1) and adjusting the levelness of the slope controller. Leveling the leveling device 33 by adjusting the foot screw 331 to center the second leveling vacuole 332;

(2) the levelness and vertical angle of the level 40 are adjusted. Adjusting the initial levelness of the level gauge 40 by means of the first gear 22 and the second gear 23, centering the first levelling bubble 41; starting the display 60 and setting zero, adjusting the first gear 22 to make the inclination angle reading displayed by the display 60 approach to the designed gradient value, then adjusting the second gear 23 to make the inclination angle reading equal to the designed gradient value, and starting the locking device to fix the level gauge 40; at this time, the level 40 emits a laser beam with a certain inclination angle, and presents a horizontally arranged light beam on the ground, and the size of the light outlet is adjusted to control the length of the light beam;

(3) the height and horizontal angle of the level 40 are adjusted. The height of the level 40 is roughly adjusted by adjusting the height of a tripod, then the third gear 52 is rotated to enable laser light emitted by the level 40 to be basically parallel to the side line of the foundation pit, then the height of the level 40 is finely adjusted by adjusting the hydraulic jacking device 32 to enable the laser light to be basically coincident with the side line of the foundation pit, and the fifth gear 54 is adjusted in a matching manner to enable the laser light to be coincident with the side line of the foundation pit (the hydraulic jacking device 32 and the fifth gear 54 may be adjusted for multiple times in the process).

3. Excavating a side slope by adopting an excavator: and carrying out layered downward small-angle inclined excavation according to the position of the laser ray, advancing the laser ray when the excavation gradient is equal to or slightly greater than the design gradient, and then continuing layered downward small-angle inclined excavation according to the position of the advanced laser ray, so that the layered downward small-angle inclined excavation is repeated until the partial excavation depth required by the design is completed. In the excavation process, if the controller generates settlement or horizontal displacement due to soil disturbance, the indication number of the display instrument 60 changes, when the change value exceeds the limit, the alarm device is triggered to alarm, the excavator stops excavation after receiving the alarm signal, and the signal receiving end immediately adjusts the gradient controller in the forward direction after receiving the abnormal signal.

It should be noted that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the efficacy and the achievable purpose of the present invention. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.

The above description is only a preferred embodiment of the present invention, but the present invention is not limited to the above embodiment, and various changes can be made thereto within the knowledge of those skilled in the art. Therefore, certain details of the embodiments should not be construed as limitations of the invention, which are intended to be covered by the following claims.

Claims (10)

1. The utility model provides a slope control appearance of putting slope excavation, its characterized in that, include the support and rotationally install in the spirit level of support, the spirit level is equipped with laser emitter, the support erects the board including two of relative setting, the relative both sides one-to-one ground of spirit level rotate through first pivot connect in two erect the board, first pivot level sets up.

2. The slope controller for slope excavation according to claim 1, wherein the vertical plate is provided with a first mounting hole through which the first rotating shaft is inserted, a first gear is sleeved at an end of the first rotating shaft, which penetrates through the first mounting hole, and a second gear engaged with the first gear is arranged on the vertical plate and rotatably connected to the outer side of the vertical plate through a first fixed shaft.

3. The slope grade controller for slope excavation according to claim 1, wherein a height-adjustable base is connected to the bottom of the support.

4. The slope controller for slope excavation according to claim 3, wherein the base comprises a base and a hydraulic jacking device fixed on the base.

5. The slope controller for slope excavation according to claim 4, wherein a leveling device is disposed between the base and the hydraulic jacking device, the leveling device comprises an upper plate connected to the base and a lower plate connected to the hydraulic jacking device, the upper plate and the lower plate are connected by a screw, and a leveling bubble is disposed on the lower plate.

6. The slope controller of claim 4, wherein the support comprises a bottom plate connected to the bottom of the two vertical plates, a second fixed shaft is fixed to the top of the base, and the bottom plate is rotatably connected to the second fixed shaft.

7. The slope controller for slope excavation according to claim 6, wherein the bottom plate is rotatably connected to the second fixed shaft through a gear assembly, the gear assembly comprises a third gear and a fourth gear, the third gear is fixed to the bottom of the bottom plate and is provided with a second mounting hole for the second fixed shaft to be inserted, the fourth gear is rotatably arranged at the top of the base through the third fixed shaft, and the fourth gear is meshed with the third gear.

8. The slope controller for slope excavation according to claim 7, wherein the gear assembly further comprises a fifth gear disposed on the top of the base and a fixing plate disposed on the fifth gear, the fifth gear is provided with a third mounting hole for the second dead axle to be inserted, and the second dead axle and the third dead axle are fixed to the fixing plate.

9. The slope controller for slope excavation according to claim 7, further comprising a display for displaying the height and angle of the level, and an alarm device connected to the display.

10. The slope control instrument for slope excavation according to any one of claims 1 to 9, wherein the level is a green light level.

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