CN112325853B

CN112325853B - Hydraulic engineering construction is with portable slope measuring device

Info

Publication number: CN112325853B
Application number: CN202011049422.XA
Authority: CN
Inventors: 张勇; 赵晋; 陈希歌; 孙小虎
Original assignee: Shandong Water Conservancy Engineering Test Center Co ltd
Current assignee: Shandong Water Conservancy Engineering Test Center Co ltd
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2022-09-06
Anticipated expiration: 2040-09-29
Also published as: CN112325853A

Abstract

The invention relates to the technical field of hydraulic engineering construction, in particular to a portable slope measuring device for hydraulic engineering construction, which comprises a base and a rotary seat, wherein plug mechanisms are symmetrically arranged at the front end and the rear end of the base, a rotary groove is formed in the upper end of the base, an opening of the rotary groove at the lower end of the rotary seat is inserted into the rotary groove, a limiting mechanism is arranged at one end of the rotary seat inserted into the rotary groove, supporting rods are arranged at the circle centers of the front end and the rear end of the rotary seat through a rotary shaft, and a positioning mechanism is arranged on the supporting rods. According to the invention, by arranging the heavy ball, when the device is used, only the base is required to be horizontally placed on the ground, then the loop bar is enabled to be vertical to the base through the positioning mechanism when being rotated, then the heavy ball can automatically droop under the influence of gravity and is vertical to a horizontal plane, and then the slope can be measured through calculation.

Description

Hydraulic engineering construction is with portable slope measuring device

Technical Field

The invention relates to the technical field of hydraulic engineering construction, in particular to a portable slope measuring device for hydraulic engineering construction.

Background

The water conservancy project is a project built for controlling and allocating surface water and underground water in the nature to achieve the purpose of removing harm and benefiting, also called water project, water is a valuable resource essential for human production and life, but the naturally existing state of the water conservancy project does not completely meet the requirement of human, and only the water conservancy project is built, the water flow can be controlled to prevent flood disasters, and the regulation and distribution of water quantity are carried out to meet the requirement of the life and production of people on water resources;

before hydraulic engineering construction, situations such as topography of a construction site need to be surveyed and measured, so that construction simulation and other operations are performed by using measured data, but at present, a portable device for measuring slope inclination is not specially used, a large number of measuring tools are usually required to be used in a combined mode to measure the slope inclination, and when the slope is located on the slope surface of the slope, the common measuring tools are difficult to measure in situ, so that the portable slope measuring device for hydraulic engineering construction is provided for solving the problems.

Disclosure of Invention

The invention aims to provide a portable slope measuring device for hydraulic engineering construction, which solves the problems that no portable device specially used for measuring slope inclination exists in the prior art, a large number of measuring tools are usually required to be combined for use, the slope inclination can be measured, and when the slope is positioned on the slope surface of the slope, the common measuring tools are difficult to measure in situ.

In order to achieve the purpose, the invention provides the following technical scheme: a portable slope measuring device for hydraulic engineering construction comprises a base and a rotary seat, wherein plug mechanisms are symmetrically arranged at the front end and the rear end of the base, a rotary groove is formed in the upper end of the base, the lower end of the rotary seat is inserted into an opening of the rotary groove, a limiting mechanism is arranged at one end of the rotary seat inserted into the rotary groove, supporting rods are mounted at the circle center positions of the front end and the rear end of the rotary seat through rotary shafts, a positioning mechanism is arranged on the supporting rods, the upper end of each supporting rod is connected with a sleeve rod through a telescopic mechanism, a protractor plate is arranged at the upper end of the sleeve rod, a transmission shaft is transversely mounted at the circle center position of the protractor plate through a bearing, a connecting rod is fixedly welded at the back end of the transmission shaft, a heavy ball is fixedly welded at the end of the connecting rod, a pointer is fixedly welded at the front end of the transmission shaft and is flush with the connecting rod, the telescopic mechanism comprises a rack, the upper end of the supporting rod is vertically welded with a rack, the lower end of the loop bar is provided with a telescopic cavity, the upper end of the rack is inserted from the lower end opening of the telescopic cavity, the inner wall of the telescopic cavity is fixedly embedded with a guide rail, the rack is provided with a ball matched with the guide rail, the inner wall of the opening of the telescopic cavity is provided with a tooth socket, a gear is arranged in the tooth socket through a rotating shaft, the gear is meshed with the rack, a self-locking mechanism is arranged in the tooth socket and comprises a third spring, a third movable groove is arranged in the inner wall of the tooth socket, a third spring is vertically arranged in the third movable groove, a third embedded block is arranged at the opening of the third movable groove, the inner end of the third embedded block is fixedly connected with one end of the third spring, the other end of the third spring is fixedly connected with the inner wall of the third movable groove, and the outer end of the third embedded block is hemispherical, the diameter of the outer end of the third insert block is smaller than the tooth clearance of the gear.

Preferably, the plug mechanism includes the screw rod, the dead slot has been seted up to the lower extreme symmetry of both sides around the base, and the vertical jack of having seted up in upper end of dead slot, the vertical screw rod that is equipped with of inserting in the jack, jack fixed mounting has the swivel nut, and the swivel nut cup joints on the screw rod, the fixed welding in upper end of screw rod has the knob, the fixed welding of lower extreme of screw rod has the nail of inserting, and inserts the nail and be the back taper.

Preferably, stop gear includes first spring, first activity groove has been seted up on the swivel mount inserts the one end surface in the rotating groove, and the inside in first activity groove transversely is provided with first spring, first abaculus is installed to the opening part in first activity groove, and the one end fixed connection of one end and first spring that first abaculus inserted first activity inslot, the other end of first spring and the inner wall fixed connection in first activity groove, the outer end of first abaculus sets up to the hemisphere, four sets of caulking grooves have been seted up to the inner wall equidistance in rotating groove, and the internal diameter of caulking groove and the outer end external diameter looks adaptation of first abaculus.

Preferably, positioning mechanism includes the second spring, the second activity groove has been seted up on the back of the body end surface of bracing piece, and the inside in second activity groove transversely is provided with the second spring, the opening part in second activity groove is provided with the second abaculus, and the one end that the second abaculus is in the second activity inslot and the one end fixed connection of second spring, the other end of second spring offsets with the inner wall in second activity groove, the outer end of second abaculus sets up to the hemisphere, the caulking hole with second abaculus looks adaptation is seted up to transposable back of the body end central point, the draw-in groove with second abaculus looks adaptation is seted up to transposable back of the body end downside.

Preferably, the upper surface of base is provided with the size scale, the upper end fixed mounting of base has the level bubble.

Compared with the prior art, the invention has the beneficial effects that: the portable slope measuring device for hydraulic engineering construction is characterized in that a heavy ball is arranged, when the device is used, a base is only required to be horizontally placed on the ground, then the loop bar is enabled to be vertical to the base through a positioning mechanism when the loop bar rotates, then the heavy ball can automatically droop under the influence of gravity and is vertical to a horizontal plane, at the moment, a pointer can point to the included angle degree of the loop bar and a connecting rod, then the degree pointed by the pointer is subtracted from one hundred eighty degrees, then the included angle between the base and the loop bar, namely ninety degrees, is subtracted, so that the included angle degree between the heavy ball and a slope surface can be obtained, then the included angle degree between the slope surface and the horizontal plane, namely the slope surface can be obtained by subtracting the included angle degree between the heavy ball and the slope surface from the vertical angle between the loop bar and the base, namely ninety degrees, so that direct measurement can be carried out on the slope surface through the method, and compared with most of the conventional slope measuring device, the device is more convenient and practical;

through setting up stop gear and positioning mechanism, stop gear can adjust base and transposable direction, make bracing piece and base fold through positioning mechanism and pack up when syntropy, so that carry, can change the placing means when the base uses through stop gear simultaneously, so as to according to the site conditions, select transversely to place or with slope parallel placement, be convenient for like this keep flat the device, the cooperation plug can, can fix the device, in order to increase the suitability of device.

Description of the drawings:

in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic front view of the structure of the present invention;

FIG. 2 is a schematic sectional elevation view of the structure of the present invention;

FIG. 3 is a schematic side sectional view of the structure of the present invention;

FIG. 4 is a schematic top cross-sectional view of the structure of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 3;

FIG. 6 is an enlarged view of a portion B of FIG. 2 according to the present invention;

FIG. 7 is an enlarged view of a portion of C of FIG. 3 according to the present invention;

FIG. 8 is an enlarged partial view of D of FIG. 2 according to the present invention;

FIG. 9 is a schematic view of the present invention in a lateral use position;

FIG. 10 is a schematic view of the parallel usage of the present invention.

In the figure: 1. a base; 2. an empty groove; 3. a screw; 4. a threaded sleeve; 5. a knob; 6. inserting a nail; 7. rotating the groove; 8. rotating; 9. a first movable slot; 10. a first spring; 11. a first slug; 12. caulking grooves; 13. a support bar; 14. a second movable slot; 15. a second spring; 16. a second slug; 17. embedding holes; 18. a rack; 19. a loop bar; 20. a telescopic cavity; 21. a guide rail; 22. a ball bearing; 23. a tooth socket; 24. a gear; 25. a third movable slot; 26. a third spring; 27. a third slug; 28. a protractor plate; 29. a drive shaft; 30. a connecting rod; 31. weighing balls; 32. a pointer; 33. horizontal bubble.

The specific implementation mode is as follows:

the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-10, an embodiment of the present invention is shown: a portable slope measuring device for hydraulic engineering construction comprises a base 1 and a rotary seat 8, wherein plug mechanisms are symmetrically arranged at the front end and the rear end of the base 1, a rotary groove 7 is formed in the upper end of the base 1, the lower end of the rotary seat 8 is inserted from an opening of the rotary groove 7, a limiting mechanism is arranged at one end of the rotary seat 8 inserted into the rotary groove 7, a supporting rod 13 is arranged at the circle center position of the front end and the rear end of the rotary seat 8 through a rotating shaft, and the supporting rod 13 is provided with a positioning mechanism, the upper end of the supporting rod 13 is connected with the loop bar 19 through a telescopic mechanism, and the upper end of the loop bar 19 is provided with a protractor plate 28, the circle center position of the protractor plate 28 is transversely provided with a transmission shaft 29 through a bearing, a connecting rod 30 is fixedly welded at the back end of the transmission shaft 29, a heavy ball 31 is fixedly welded at the end of the connecting rod 30, a pointer 32 is fixedly welded at the front end of the transmission shaft 29, and the pointer 32 is flush with the connecting rod 30;

further, the plug mechanism comprises a screw rod 3, the lower ends of the front side and the rear side of the base 1 are symmetrically provided with empty grooves 2, the upper ends of the empty grooves 2 are vertically provided with insertion holes, the screw rod 3 is vertically inserted into the insertion holes, screw sleeves 4 are fixedly installed on the insertion holes, the screw sleeves 4 are sleeved on the screw rod 3, the upper end of the screw rod 3 is fixedly welded with a knob 5, the lower end of the screw rod 3 is fixedly welded with an insertion nail 6, and the insertion nail 6 is in an inverted cone shape, as shown in fig. 3 and 5, the structure is used for stably placing the device on a muddy slope surface so as to improve the installation stability of the device;

furthermore, the limiting mechanism comprises a first spring 10, a first movable groove 9 is arranged on the surface of one end of the rotary seat 8 inserted into the rotary groove 7, and a first spring 10 is transversely arranged in the first movable groove 9, a first embedded block 11 is arranged at the opening of the first movable groove 9, and one end of the first embedded block 11 inserted into the first movable groove 9 is fixedly connected with one end of the first spring 10, the other end of the first spring 10 is fixedly connected with the inner wall of the first movable groove 9, the outer end of the first embedded block 11 is hemispherical, four groups of embedded grooves 12 are arranged on the inner wall of the rotary groove 7 at equal intervals, and the inner diameter of the insert groove 12 is adapted to the outer diameter of the outer end of the first insert 11, as shown in figures 2, 3 and 6, the structure is used for limiting the rotary seat 8, so that after the rotary seat 8 rotates ninety degrees in the rotary groove 7, the limiting mechanisms can limit the rotary seat 8, and the directions of the rotary seat 8 and the base 1 can be adjusted conveniently;

further, the positioning mechanism includes a second spring 15, a second movable groove 14 is formed on the surface of the back end of the supporting rod 13, the second spring 15 is transversely disposed inside the second movable groove 14, a second embedded block 16 is disposed at an opening of the second movable groove 14, one end of the second embedded block 16 located in the second movable groove 14 is fixedly connected with one end of the second spring 15, the other end of the second spring 15 abuts against the inner wall of the second movable groove 14, the outer end of the second embedded block 16 is hemispherical, an embedded hole 17 adapted to the second embedded block 16 is formed in the center of the back end of the swivel base 8, a clamping groove adapted to the second embedded block 16 is formed at the lower side of the back end of the swivel base 8, as shown in fig. 1, 3 and 7, the positioning mechanism is used for automatically locking the supporting rod 13 when the supporting rod 13 is folded and folded to be parallel to the base 1 or when the supporting rod 13 is folded and unfolded to be perpendicular to the base 1, so as to be convenient for opening, using and folding;

further, the telescopic mechanism comprises a rack 18, the rack 18 is vertically welded at the upper end of the support rod 13, a telescopic cavity 20 is formed in the lower end of the loop rod 19, the upper end of the rack 18 is inserted into an opening at the lower end of the telescopic cavity 20, a guide rail 21 is fixedly embedded in the inner wall of the telescopic cavity 20, a ball 22 matched with the guide rail 21 is formed in the rack 18, a tooth groove 23 is formed in the inner wall of the opening of the telescopic cavity 20, a gear 24 is installed in the tooth groove 23 through a rotating shaft, the gear 24 is meshed with the rack 18, a self-locking mechanism is arranged in the tooth groove 23, and as shown in fig. 2 and 8, the structure is used for adjusting the height of the heavy ball 31, so that the device can be used according to different terrain;

further, the self-locking mechanism comprises a third spring 26, a third movable groove 25 is formed in the inner wall of the tooth groove 23, the third spring 26 is vertically arranged in the third movable groove 25, a third embedded block 27 is installed at an opening of the third movable groove 25, the inner end of the third embedded block 27 is fixedly connected with one end of the third spring 26, the other end of the third spring 26 is fixedly connected with the inner wall of the third movable groove 25, the outer end of the third embedded block 27 is hemispherical, and the diameter of the outer end of the third embedded block 27 is smaller than the tooth clearance of the gear 24, as shown in fig. 8, the self-locking mechanism is used for self-locking the rack 18, so that when the rack 18 extends out of or is accommodated in the telescopic cavity 20, the self-locking mechanism can automatically lock the rack 18, and therefore the use is facilitated;

furthermore, the upper surface of the base 1 is provided with size scales, and the upper end of the base 1 is fixedly provided with the horizontal bubble 33, so that the device can be used as a simple measuring scale when being folded and folded, and can carry out horizontal measurement through the horizontal bubble 33;

the working principle is as follows: when the measuring device is used, the base 1 is firstly flatly placed on a slope to be measured, if the base 1 can not be flatly placed horizontally and can be placed in parallel with the slope, only the rotary seat 8 and the base 1 need to oppositely rotate, when the rotary seat 8 is stressed, the outer end of the first embedded block 11 embedded in the embedded groove 12 can leave the embedded groove 12 and move towards the first movable groove 9 after being influenced by enough torsion, the first spring 10 can be compressed, then after the rotary seat 8 rotates ninety degrees, the first embedded block 11 can be aligned to the next group of embedded groove 12, at the moment, the first spring 10 in the compressed state can pop the first embedded block 11 out of the first movable groove 9 through the rebound force, so that the outer end of the first embedded block 11 is embedded into the aligned embedded groove 12, at the moment, the rotary seat 8 is limited by the two groups of first embedded blocks 11, the rotation caused by error touch can not occur, through the mode, the directions of the rotary seat 8 and the base 1 can be changed, and the connecting rod 30 can be parallel to or crossed with the base 1, thus, the base 1 and the swivel base 8 can be adjusted according to the ground conditions, as shown in fig. 9 and 10, so that the base 1 can be stably placed on the road surface, and the smooth measurement can be ensured;

if the ground is muddy, the base 1 cannot be stably placed on a slope, the knob 5 can be rotated, the knob 5 can drive the screw rod 3 to rotate to be in threaded fit with the threaded sleeve 4, so that the screw rod 3 can extend downwards to take the inserting nail 6 out of the hollow groove 2, and the inserting nail 6 can be inserted into the soil to fix the base 1, so that the base 1 is ensured to be stably placed on the slope;

when measurement is needed, the loop bar 19 is pulled, the loop bar 19 drives the supporting rod 13 to rotate through the rack 18, the second insert block 16 is embedded into the embedding hole 17, at the moment, the loop bar 19 and the base 1 are ninety degrees, then the heavy ball 31 drives the transmission shaft 29 to rotate on the protractor plate 28 through the connecting rod 30 due to the influence of gravity, and the transmission shaft 29 drives the pointer 32 to rotate, after the heavy ball 31 is stable and motionless, the heavy ball 31 is in a state perpendicular to the horizontal plane, the pointer 32 points to the included angle degrees of the loop bar 19 and the connecting rod 30 on the protractor plate 28, then the degree indicated by the pointer 32 is subtracted from one hundred eighty degrees, the included angle between the heavy ball 31 and the slope surface is obtained by subtracting the included angle between the base 1 and the loop bar 19, namely ninety degrees, the included angle between the heavy ball 31 and the slope surface is obtained by subtracting the included angle between the heavy ball 31 and the slope surface from the vertical angle between the loop bar 19 and the base 1, namely ninety degrees, namely the included angle between the slope surface and the slope surface is obtained by subtracting the degree between the slope surface, i.e., grade, as in fig. 9 and 10;

in addition, the sleeve rod 19 and the rack 18 can be extended and contracted, so that the height of the heavy ball 31 can be changed, the heavy ball 31 is prevented from contacting the ground due to a larger gradient in use, when in operation, the sleeve rod 19 and the support rod 13 are pulled oppositely, so that the rack 18 extends out of the sleeve rod 19, the guide rail 21 slides in the ball 22 to guide the rack 18, so that the rack 18 can smoothly slide out of the telescopic cavity 20, when the rack 18 extends out of the telescopic cavity 20, teeth of the rack 18 can stir the gear 24 to rotate, the gear 24 can prop against an outer end inclined plane of the third insert 27 when rotating, when the third insert 27 receives enough force, the third insert 27 can retract towards the third movable groove 25 and compress the third spring 26, teeth of the gear 24 can pass through the third insert 27, when the third insert 27 is aligned with a next group of teeth, the third spring 26 in a compressed state can push out the third insert 27 through a rebound force, the third embedded block 27 is embedded into the gap, at this time, due to the limit of the third embedded block 27, the gear 24 cannot rotate when not influenced by enough force, so that the rack 18 cannot move in the telescopic cavity 20, at this time, because the rack 18 extends out of the telescopic cavity 20, the height of the heavy ball 31 is changed, and the height of the heavy ball 31 can be changed through the operation, so that the applicability of the device is improved;

meanwhile, when the device is folded, the rotary seat 8 can be rotated, the connecting rod 30 is parallel to the base 1, then the supporting rod 13 is rotated, after the outer end of the second embedded block 16 embedded in the embedded hole 17 is subjected to enough force, the second embedded block 16 is folded towards the second movable groove 14 and exits from the embedded hole 17, in the process, the second spring 15 is compressed, then the supporting rod 13 is folded and rotated downwards, the embedded groove 12 is aligned to a clamping groove at the lower end of the rotary seat 8, then the second embedded block 16 is ejected out by the second spring 15 in the compressed state through complex elasticity, the second embedded block 16 is clamped in the clamping groove, at the moment, the supporting rod 13 is parallel to the base 1, the whole device is of a long strip shape, and the carrying and the storage are convenient.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a hydraulic engineering construction is with portable slope measuring device, includes base (1) and swivel mount (8), its characterized in that: the utility model discloses a rotary angle measuring device, including base (1), swivel groove (7) have been seted up to the upper end of base (1), the lower extreme of swivel mount (8) inserts from the opening part of swivel groove (7), the one end that swivel mount (8) inserted in swivel groove (7) is provided with stop gear, bracing piece (13) are installed through the pivot to the centre of a circle position at both ends around swivel mount (8), and are provided with positioning mechanism on bracing piece (13), the upper end of bracing piece (13) is connected with loop bar (19) through telescopic machanism, and the upper end of loop bar (19) is provided with protractor board (28), transmission shaft (29) are transversely installed through the bearing to the centre of a circle position of protractor board (28), and the back end fixed weld of transmission shaft (29) has connecting rod (30), the fixed welding in end of connecting rod (30) has heavy ball (31), the front end fixed welding of transmission shaft (29) has pointer (32), and pointer (32) flushes with connecting rod (30), telescopic machanism includes rack (18), the vertical welding in upper end of bracing piece (13) has rack (18), flexible chamber (20) have been seted up to the lower extreme of loop bar (19), the upper end of rack (18) inserts from the lower extreme opening part of flexible chamber (20), fixed guide rail (21) having inlayed on the inner wall of flexible chamber (20), set up ball (22) with guide rail (21) looks adaptation on rack (18), tooth's socket (23) have been seted up to the inner wall of flexible chamber (20) opening part, and install gear (24) through the pivot in tooth's socket (23), gear (24) and rack (18) mesh mutually, be provided with self-locking mechanism in tooth's socket (23), self-locking mechanism includes third spring (26), the utility model discloses a gear tooth's socket, including tooth's socket (23), the inner wall of tooth's socket (23) is seted up third movable groove (25), and the vertical third spring (26) that is provided with in third movable groove (25), third abaculus (27) are installed to the opening part of third movable groove (25), and the inner of third abaculus (27) and the one end fixed connection of third spring (26), the other end of third spring (26) and the inner wall fixed connection of third movable groove (25), the outer end of third abaculus (27) sets up to the hemisphere, the outer end diameter of third abaculus (27) is less than the tooth clearance of gear (24).

2. The portable slope measuring device for hydraulic engineering construction according to claim 1, characterized in that: plug mechanism includes screw rod (3), dead slot (2) have been seted up to the lower extreme symmetry of both sides around base (1), and the vertical jack of having seted up in upper end of dead slot (2), the vertical screw rod (3) of being equipped with of inserting in the jack, jack fixed mounting has swivel nut (4), and swivel nut (4) cup joints on screw rod (3), the fixed welding in upper end of screw rod (3) has knob (5), the fixed welding of lower extreme of screw rod (3) has insert nail (6), and inserts nail (6) and be the back taper.

3. The portable slope measuring device for hydraulic engineering construction according to claim 1, characterized in that: stop gear includes first spring (10), first activity groove (9) have been seted up on the one end surface that swivel mount (8) inserted in swivel groove (7), and the inside of first activity groove (9) transversely is provided with first spring (10), first abaculus (11) are installed to the opening part of first activity groove (9), and the one end that just first abaculus (11) inserted in first activity groove (9) and the one end fixed connection of first spring (10), the other end of first spring (10) and the inner wall fixed connection of first activity groove (9), the outer end of first abaculus (11) sets up to the hemisphere, four groups caulking groove (12) have been seted up to the inner wall equidistance of swivel groove (7), and the internal diameter of caulking groove (12) and the outer end external diameter looks adaptation of first abaculus (11).

4. The portable slope measuring device for hydraulic engineering construction according to claim 1, is characterized in that: the positioning mechanism comprises a second spring (15), a second movable groove (14) is formed in the surface of the back end of the supporting rod (13), the second spring (15) is transversely arranged inside the second movable groove (14), a second embedded block (16) is arranged at the opening of the second movable groove (14), one end of the second embedded block (16) in the second movable groove (14) is fixedly connected with one end of the second spring (15), the other end of the second spring (15) is abutted to the inner wall of the second movable groove (14), the outer end of the second embedded block (16) is hemispherical, an embedded hole (17) matched with the second embedded block (16) is formed in the center of the back end of the rotary seat (8), and a clamping groove matched with the second embedded block (16) is formed in the lower side of the back end of the rotary seat (8).

5. The portable slope measuring device for hydraulic engineering construction according to claim 1, is characterized in that: the upper surface of base (1) is provided with the size scale, the upper end fixed mounting of base (1) has horizontal bubble (33).