Measuring and positioning device for hydraulic engineering construction

Abstract

The invention discloses a hydraulic engineering construction measuring and positioning device which comprises a measuring chassis and a bearing chassis, a rotating ball is fixedly connected to the center of the bottom face of the measuring chassis, a rotating ball groove is formed in the center of the bearing chassis in a penetrating mode, a connecting rope is fixedly connected to the bottom end of the rotating ball, and a balancing weight is fixedly connected to the bottom end of the connecting rope. One end of the bottom surface of the measuring chassis is rotationally connected with a positioning screw, the outer side of the positioning screw is in threaded connection and sleeved with a first positioning nut and a second positioning nut, one end of the bearing chassis is provided with a penetrating groove in a penetrating mode, the outer side of the measuring chassis is sleeved with a transparent cavity ring, and one end of the outer side of the transparent cavity ring is provided with scale marks; multi-directional rotation angles are provided between the measuring base plate and the bearing base plate through the rotating ball body and the rotating ball groove, the rotating ball body and the connecting structure of the rotating ball body are kept perpendicular to the ground all the time under the action of natural gravity through the connecting rope and the balance weight of the balance weight block, and then the horizontal state of rapid one-time calibration equipment is achieved; compared with a traditional method of adjusting knobs one by one, the leveling efficiency is higher.

Description

Technical Field

[0001] The invention relates to the technical field of measuring equipment, in particular to a measuring and positioning device for water conservancy project construction. Background Art

[0002] Water conservancy project construction refers to the process of converting the design of water conservancy projects into actual buildings through scientific organization and management and construction technology in accordance with design drawings and technical specifications. It includes the entire process from construction preparation, construction implementation to completion acceptance, aiming to build safe, efficient and sustainable water conservancy facilities. The construction process requires measurement and positioning work, which is generally carried out using equipment such as levels and spirit levels.

[0003] The existing Chinese patent document CN212963309U discloses a measuring device for water conservancy project construction, comprising: a support frame, a calibration device installed on the support frame, and a level supported by the support frame and passing through the calibration device; the present invention supports the level by the support frame, and the supporting device has a simple structure and is easy to implement. Since the calibration device is always perpendicular to the top rod supporting the level, the horizontal adjustment of the level is achieved by adjusting the calibration device, thereby improving the debugging efficiency of the level, and being able to monitor the horizontal degree of the level in real time; however, the measuring device for water conservancy project construction still has shortcomings: it needs to adjust several groups of adjusting nuts and supporting screws evenly distributed in four directions to calibrate the level, the calibration process is cumbersome and time-consuming, and it is difficult to quickly complete the calibration level process of the equipment, which affects the equipment use efficiency, that is, the engineering construction efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a water conservancy project construction measurement and positioning device to solve the problem that the measurement device for water conservancy project construction needs to adjust several groups of adjustment nuts and support screws evenly distributed in four directions to calibrate the level, the calibration process is cumbersome and time-consuming, and it is difficult to quickly complete the equipment calibration process, which affects the equipment utilization efficiency, that is, the project construction efficiency.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a water conservancy project construction measurement and positioning device, comprising: a measuring chassis and a supporting chassis, a rotating sphere is fixedly connected to the center of the bottom surface of the measuring chassis, a rotating ball groove is opened through the center of the supporting chassis, a connecting rope is fixedly connected to the bottom end of the rotating sphere, a counterweight is fixedly connected to the bottom end of the connecting rope, a positioning screw is rotatably connected to one end of the bottom surface of the measuring chassis, a positioning nut 1 and a positioning nut 2 are threadedly sleeved on the outer side of the positioning screw, a through groove is opened through one end of the supporting chassis, a transparent cavity ring is sleeved on the outer side of the measuring chassis, and a scale mark is set at one end of the outer side of the transparent cavity ring.

[0006] As a further solution of the present invention: the measuring chassis is mounted on the top of the supporting chassis, and the multi-directional rotation connection between the two is achieved by embedding the rotating ball into the rotating ball groove. The connecting rope passes through the rotating ball groove to connect the counterweight block and is hung on the bottom of the supporting chassis.

[0007] As a further solution of the present invention: the positioning screw passes through the through slot and the positioning nut one and the positioning nut two are respectively arranged at the top and bottom of the through slot, and the positioning screw, positioning nut one, positioning nut two and the number of through slots are all arranged in four groups, which are symmetrically arranged in four directions in the measuring chassis and the supporting chassis.

[0008] As a further solution of the present invention: the transparent cavity ring is configured as an annular structure with a hollow interior and is sleeved on the outside of the measuring chassis. The entire structure is made of transparent acrylic material and carries colored liquid inside. There are four groups of scale marks, which are symmetrically arranged in four directions on the outside of the transparent cavity ring.

[0009] As a further solution of the present invention: a support plate is hinged at one end of the outer side of the supporting chassis, a sliding groove is provided inside the support plate, a sliding plate is slidably connected to the sliding groove, a ground hook is fixedly connected to the end of the sliding plate, a fixing screw hole is penetrated at one end of the outer side of the support plate, a fixing bolt is threaded through the fixing screw hole, an anti-slip rubber groove is provided on one side of the sliding plate, a locking rod is fixedly connected to the other side of the sliding plate, and a locking groove matching the specifications of the end of the locking rod is provided at one end of the outer side of the counterweight block.

[0010] As a further solution of the present invention: the sliding groove is compatible with the specifications of the sliding plate and the sliding plate is limited and engaged in the sliding groove so that it can only move horizontally and cannot separate from the sliding groove. The fixing bolt is screwed into the fixing screw hole and screwed into the support plate so that the end is pressed against the anti-slip rubber groove to fix the telescopic state of the sliding plate and the support plate.

[0011] As a further solution of the present invention: the support plate, sliding groove, sliding plate, ground hook, fixing screw hole, fixing bolt, anti-slip rubber groove and locking rod are all arranged in three groups and are symmetrically arranged in three directions on the outside of the supporting chassis, and the locking groove opened on the outside of the counterweight block is adapted to the number and specifications of the locking rods.

[0012] As a further solution of the present invention: a level body is arranged at the center of the top surface of the measuring chassis, a sliding bar is fixedly connected to the top of the level body, a protective arch cover is slidably connected to the top of the level body, a sliding groove is provided on the inner top surface of the protective arch cover, a cover plate is hinged at one end of the protective arch cover, a magnetic block 1 is embedded at one end of the cover plate, and a magnetic block 2 is fixedly connected to one side of the level body.

[0013] As a further solution of the present invention: the protective arch cover is arranged on the top of the level meter body and the sliding connection between the two is achieved through sliding bars and sliding grooves with matching numbers and specifications, and the magnetic block 1 and the magnetic block 2 are magnetically attracted to each other and their positions are matched.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In the present invention, the measuring chassis and the supporting chassis are provided with a multi-directional rotation angle through a rotating ball and a rotating ball groove. The rotating ball and its connection structure are always kept vertical to the ground by the connecting rope and the counterweight of the counterweight block under the action of natural gravity, that is, the horizontal state of the equipment can be quickly calibrated once. Compared with the traditional leveling by adjusting knobs one by one, it has higher efficiency and simple and effective structure.

[0016] 2. In the present invention, the positioning bolts that are multi-directionally rotatably connected to the bottom surface of the measuring chassis pass through the through slots and are held in active connection with the supporting chassis by the screw connection of the positioning nuts 1 and 2. When the positioning nuts 1 and 2 rotate close to each other to clamp the two ends of the through slots, the state of the measuring chassis and the supporting chassis can be fixed, thereby avoiding measurement errors caused by displacement during use;

[0017] 3. In the present invention, a protective arch cover is slidably connected to the top of the level body through a sliding bar and a sliding groove structure. The protective arch cover is arranged on the top of the level body to store and protect it, and at the same time plays a role of sunshade and light protection, which is convenient for construction personnel to observe and use the equipment and avoid strong sunlight or light affecting the vision. The sliding connection structure is convenient for quick disassembly of the structure. When the equipment is idle, the protective arch cover is kept in a fixed state by the magnetic attraction between the magnetic block 1 on the protective arch cover and the magnetic block 2 on the level body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of a water conservancy project construction measurement and positioning device according to the present invention;

[0019] Figure 2 It is a structural schematic diagram of a rotating ball groove in a water conservancy project construction measurement and positioning device according to the present invention;

[0020] Figure 3 It is a structural schematic diagram of a rotating sphere in a water conservancy project construction measurement and positioning device according to the present invention;

[0021] Figure 4 It is a structural schematic diagram of a transparent cavity ring in a water conservancy project construction measurement and positioning device according to the present invention;

[0022] Figure 5 It is a structural schematic diagram of an enlarged view of point A in a water conservancy project construction measurement and positioning device according to the present invention;

[0023] Figure 6 It is a structural schematic diagram of a sliding groove in a water conservancy project construction measurement and positioning device according to the present invention;

[0024] Figure 7 It is a structural schematic diagram of a sliding plate in a water conservancy project construction measurement and positioning device according to the present invention;

[0025] Figure 8 It is a structural schematic diagram of a protective arch cover in a water conservancy project construction measurement and positioning device described in the present invention.

[0026] In the figure: 1. Measuring chassis; 2. Supporting chassis; 3. Rotating sphere; 4. Rotating ball groove; 5. Connecting rope; 6. Counterweight; 7. Positioning screw; 8. Positioning nut one; 9. Positioning nut two; 10. Through groove; 11. Transparent cavity ring; 12. Scale mark; 13. Support plate; 14. Sliding groove; 15. Sliding plate; 16. Ground hook; 17. Fixing screw hole; 18. Fixing bolt; 19. Anti-skid rubber groove; 20. Engaging rod; 21. Engaging groove; 22. Level body; 23. Slide bar; 24. Protective arch cover; 25. Slide groove; 26. Cover plate; 27. Magnetic block one; 28. Magnetic block two. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of an embodiment of the present invention based on the overall structure of the present invention.

[0029] Reference Figures 1 to 5 In an embodiment of the present invention, a water conservancy project construction measurement and positioning device includes: a measuring chassis 1 and a supporting chassis 2, a rotating sphere 3 is fixedly connected to the center of the bottom surface of the measuring chassis 1, a rotating ball groove 4 is opened through the center of the supporting chassis 2, a connecting rope 5 is fixedly connected to the bottom end of the rotating sphere 3, a counterweight 6 is fixedly connected to the bottom end of the connecting rope 5, a positioning screw 7 is rotatably connected to one end of the bottom surface of the measuring chassis 1, a positioning nut 1 8 and a positioning nut 2 9 are threadedly sleeved on the outer side of the positioning screw 7, a through groove 10 is opened through one end of the supporting chassis 2, a transparent cavity ring 11 is sleeved on the outer side of the measuring chassis 1, and a scale mark 12 is arranged on one end of the outer side of the transparent cavity ring 11.

[0030] Reference Figure 2 and Figure 3 The measuring chassis 1 is mounted on the top of the supporting chassis 2, and the multi-directional rotation connection between the two is achieved by embedding the rotating ball 3 into the rotating ball groove 4. The connecting rope 5 passes through the rotating ball groove 4 to connect the counterweight block 6 suspended at the bottom of the supporting chassis 2.

[0031] The above scheme is adopted: the measuring chassis 1 and the supporting chassis 2 provide multi-directional rotation angles through the rotating ball 3 and the rotating ball groove 4, and the rotating ball 3 and its connecting structure are always kept perpendicular to the ground by the connecting rope 5 and the counterweight 6 under the action of natural gravity, that is, the horizontal state of the equipment can be quickly calibrated once, which is more efficient than the traditional leveling method of adjusting knobs one by one, and the structure is simple and effective.

[0032] Reference Figures 3 to 5The positioning screw 7 passes through the through slot 10 and the positioning nut 1 8 and the positioning nut 2 9 are respectively arranged at the top and bottom of the through slot 10. There are four groups of positioning screws 7, positioning nut 1 8, positioning nut 2 9 and through slot 10, which are symmetrically arranged in four directions in the measuring chassis 1 and the supporting chassis 2.

[0033] The above scheme is adopted: the positioning bolt 7 connected to the bottom surface of the measuring chassis 1 in a multi-directional manner passes through the through slot 10 and is threadedly clamped by the positioning nut 1 8 and the positioning nut 2 9 to maintain a movable connection with the supporting chassis 2. When the positioning nut 1 8 and the positioning nut 2 9 are rotated close to each other to clamp the two ends of the through slot 10, the state of the measuring chassis 1 and the supporting chassis 2 can be fixed to avoid displacement during use and measurement errors. The above structure is highly compatible with the multi-angle rotation state achieved by the rotating ball 3 and the rotating ball slot 4 of the measuring chassis 1 and the supporting chassis 2.

[0034] Reference Figure 4 and Figure 5 The transparent cavity ring 11 is set as a ring structure with a cavity inside and is sleeved on the outside of the measuring chassis 1. The overall material of the structure is transparent acrylic material and carries colored liquid inside. There are four groups of scale marks 12, which are symmetrically arranged in four directions on the outside of the transparent cavity ring 11.

[0035] By adopting the above scheme, the interior of the transparent cavity ring 11 is an annular cavity and carries colored liquid. The height of the colored liquid in four directions can be read through the scale marks 12 symmetrically arranged in four directions, that is, the horizontal state of the measuring chassis 1 relative to the ground can be determined.

[0036] Reference Figure 6 and Figure 7 A support plate 13 is hingedly connected to the outer end of the supporting chassis 2, a sliding groove 14 is provided inside the support plate 13, a sliding plate 15 is slidably connected inside the sliding groove 14, and a ground hook 16 is fixedly connected to the end of the sliding plate 15. A fixing screw hole 17 is penetrated and provided at one end of the outer side of the support plate 13, and a fixing bolt 18 is threadedly connected inside the fixing screw hole 17. An anti-slip rubber groove 19 is provided on one side of the sliding plate 15, and a clamping rod 20 is fixedly connected to the other side of the sliding plate 15. A clamping groove 21 adapted to the specifications of the end of the clamping rod 20 is provided at one end of the outer side of the counterweight 6. The sliding groove 14 is adapted to the specifications of the sliding plate 15 and slides The plate 15 is limitedly engaged in the sliding groove 14 and can only move horizontally and cannot separate from the sliding groove 14. The fixing bolt 18 is screwed into the fixing screw hole 17 and screwed into the support plate 13 so that the end is pressed against the anti-skid rubber groove 19 to fix the sliding plate 15 and the support plate 13 in a telescopic state. The support plate 13, the sliding groove 14, the sliding plate 15, the ground hook 16, the fixing screw hole 17, the fixing bolt 18, the anti-skid rubber groove 19 and the engaging rod 20 are all arranged in three groups and are symmetrically arranged in three directions on the outside of the supporting chassis 2. The engaging groove 21 opened on the outside of the counterweight block 6 is matched with the number and specification of the engaging rod 20.

[0037] The above scheme is adopted: the support plate 13, the sliding groove 14 and the sliding plate 15 constitute the support structure of the supporting equipment, and the ground hook 16 at the end is convenient for piercing into the ground when measuring the slope in the water conservancy project to increase the grip of the equipment and improve the stability. The extension and contraction degree of the support plate 13 and the sliding plate 15 is fixed by screwing the fixing bolt 18 into the fixing screw hole 17 and screwing it into the anti-slip rubber groove 19. There is sufficient friction between the anti-slip rubber groove 19 and the end of the fixing bolt 18 in the tight state. The locking rod 20 on the inner side of the sliding plate 15 is locked and connected with the locking groove 21 on the outer side of the counterweight block 6, which is convenient for storing the three-way support structure when the equipment is idle to avoid breakage.

[0038] Reference Figure 8 A level body 22 is arranged at the center of the top surface of the measuring chassis 1, a sliding bar 23 is fixedly connected to the top of the level body 22, a protective arch cover 24 is slidably connected to the top of the level body 22, a sliding groove 25 is opened on the inner top surface of the protective arch cover 24, a cover plate 26 is hinged at one end of the protective arch cover 24, a magnetic block 1 27 is embedded at one end of the cover plate 26, a magnetic block 28 is fixedly connected to one side of the level body 22, the protective arch cover 24 is covered on the top of the level body 22 and the sliding connection between the two is realized by the sliding bar 23 and the sliding groove 25 of matching quantity and specifications, the magnetic block 1 27 and the magnetic block 2 28 are magnetically attracted to each other and the positions are matched.

[0039] The above scheme is adopted: the top of the level body 22 is slidably connected with a protective arch cover 24 through a sliding bar 23 and a sliding groove 25 structure. The protective arch cover 24 is covered on the top of the level body 22 to store and protect it, and at the same time plays a role of sunshade and light protection, which is convenient for construction personnel to observe and use the equipment and avoid strong sunlight or light affecting the vision. The sliding connection structure is convenient for quick disassembly of the structure. When the equipment is idle, the protective arch cover 24 is kept in a fixed state by the magnetic attraction between the magnetic block 1 27 on the protective arch cover 24 and the magnetic block 2 28 on the level body 22.

[0040] The working principle of the present invention is as follows: when in use, the measuring chassis 1 and the supporting chassis 2 are provided with a multi-directional rotation angle through the rotating ball 3 and the rotating ball groove 4. The rotating ball 3 and its connecting structure are always kept vertical to the ground under the action of natural gravity through the connecting rope 5 and the counterweight of the counterweight block 6, that is, the horizontal state of the equipment is quickly calibrated once, which is more efficient than the traditional leveling of adjusting knobs one by one, and the structure is simple and effective. The positioning bolt 7 connected to the bottom surface of the measuring chassis 1 in a multi-directional rotation passes through the through groove 10 and is screwed and clamped with the supporting chassis 2 by the positioning nut 1 8 and the positioning nut 2 9. The chassis 2 is connected movably. When the positioning nut 1 8 and the positioning nut 2 9 rotate close to each other to clamp the two ends of the through groove 10, the state of the measuring chassis 1 and the supporting chassis 2 can be fixed to avoid displacement during use and measurement errors. The above-mentioned structure is highly coordinated with the multi-angle rotation state of the measuring chassis 1 and the supporting chassis 2 through the rotating ball 3 and the rotating ball groove 4. The transparent cavity ring 11 has an annular cavity inside and carries a colored liquid. The colored liquid height in four directions can be read through the scale marks 12 symmetrically arranged in four directions, that is, the relative horizontal state of the measuring chassis 1 to the ground can be determined. The support plate 13, the sliding groove 14 and the sliding plate 15 form a support structure for supporting the equipment. The ground hook 16 at the end is convenient for piercing into the ground when measuring the slope in the water conservancy project to increase the grip of the equipment and improve stability. The extension degree of the support plate 13 and the sliding plate 15 is fixed by screwing the fixing bolt 18 into the fixing screw hole 17 and screwing it into the anti-skid rubber groove 19. There is sufficient friction between the anti-skid rubber groove 19 and the end of the fixing bolt 18 in a tight state. The clamping rod 20 on the inner side of the sliding plate 15 is clamped and connected with the clamping groove 21 on the outer side of the counterweight block 6, which is convenient for storage when the equipment is idle. The three-way support structure prevents breakage. The top of the level body 22 is slidably connected with a protective arch cover 24 through a slide bar 23 and a slide groove 25 structure. The protective arch cover 24 is covered on the top of the level body 22 to store and protect it, and at the same time plays a role in sunshade and light protection, which is convenient for construction personnel to observe and use the equipment and avoid strong sunlight or light affecting the vision. The sliding connection structure facilitates quick disassembly of the structure. When the equipment is idle, the protective arch cover 24 is kept in a fixed state by the magnetic attraction between the magnetic block 1 27 on the protective arch cover 24 and the magnetic block 2 28 on the level body 22.

[0041] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A water conservancy project construction measurement and positioning device, characterized in that: include: A measuring chassis (1) and a supporting chassis (2), wherein a rotating sphere (3) is fixedly connected at the center of the bottom surface of the measuring chassis (1), a rotating ball groove (4) is provided through the center of the supporting chassis (2), a connecting rope (5) is fixedly connected to the bottom end of the rotating sphere (3), a counterweight (6) is fixedly connected to the bottom end of the connecting rope (5), a positioning screw (7) is rotatably connected to one end of the bottom surface of the measuring chassis (1), a first positioning nut (8) and a second positioning nut (9) are provided on the outer side of the positioning screw (7), a through groove (10) is provided through one end of the supporting chassis (2), a transparent cavity ring (11) is provided on the outer side of the measuring chassis (1), and a scale mark (12) is provided on the outer side of the transparent cavity ring (11).

2. A water conservancy project construction measurement and positioning device according to claim 1, characterized in that: The measuring chassis (1) is mounted on the top of the supporting chassis (2), and the two are connected in a multi-directional manner by inserting the rotating ball (3) into the rotating ball groove (4). The connecting rope (5) passes through the rotating ball groove (4) and is connected to the counterweight (6) and is suspended at the bottom of the supporting chassis (2).

3. A water conservancy project construction measurement and positioning device according to claim 1, characterized in that: The positioning screw (7) passes through the through slot (10) and the positioning nut one (8) and the positioning nut two (9) are respectively arranged at the top and bottom of the through slot (10). The positioning screw (7), the positioning nut one (8), the positioning nut two (9) and the through slot (10) are arranged in four groups and are symmetrically arranged in four directions in the measuring chassis (1) and the supporting chassis (2).

4. A water conservancy project construction measurement and positioning device according to claim 1, characterized in that: The transparent cavity ring (11) is configured as a ring structure with a cavity inside and sleeved on the outside of the measuring chassis (1); the entire structure is made of transparent acrylic material and carries a colored liquid inside; the scale marks (12) are arranged in four groups and are symmetrically arranged on the outside of the transparent cavity ring (11) in four directions.

5. A water conservancy project construction measurement and positioning device according to claim 1, characterized in that: A support plate (13) is hingedly connected to one end of the outer side of the supporting chassis (2), a sliding groove (14) is provided inside the support plate (13), a sliding plate (15) is slidably connected inside the sliding groove (14), a ground plugging hook (16) is fixedly connected to the end of the sliding plate (15), a fixing screw hole (17) is penetrated through one end of the outer side of the support plate (13), a fixing bolt (18) is threadedly connected inside the fixing screw hole (17), an anti-slip rubber groove (19) is provided on one side of the sliding plate (15), a clamping rod (20) is fixedly connected to the other side of the sliding plate (15), and a clamping groove (21) adapted to the specifications of the end of the clamping rod (20) is provided on one end of the outer side of the counterweight (6).

6. A water conservancy project construction measurement and positioning device according to claim 5, characterized in that: The sliding groove (14) and the sliding plate (15) are matched in specifications and the sliding plate (15) is limitedly engaged in the sliding groove (14) and can only move horizontally and cannot be separated from the sliding groove (14). The fixing bolt (18) is screwed into the fixing screw hole (17) and screwed into the support plate (13) so that the end thereof abuts against the anti-slip rubber groove (19) to fix the sliding plate (15) and the support plate (13) in a telescopic state.

7. A water conservancy project construction measurement and positioning device according to claim 5, characterized in that: The support plate (13), the sliding groove (14), the sliding plate (15), the ground hook (16), the fixing screw hole (17), the fixing bolt (18), the anti-skid rubber groove (19) and the engaging rod (20) are all arranged in three groups and are symmetrically arranged in three directions on the outside of the supporting chassis (2). The engaging groove (21) provided on the outside of the counterweight block (6) is matched in quantity and specification with the engaging rod (20).

8. A water conservancy project construction measurement and positioning device according to claim 1, characterized in that: A level body (22) is arranged at the center of the top surface of the measuring chassis (1), a sliding bar (23) is fixedly connected to the top of the level body (22), a protective arch cover (24) is slidably connected to the top of the level body (22), a sliding groove (25) is provided on the inner top surface of the protective arch cover (24), one end of the protective arch cover (24) is hinged with a cover plate (26), one end of the cover plate (26) is embedded with a magnetic block 1 (27), and one side of the level body (22) is fixedly connected with a magnetic block 2 (28).

9. A water conservancy project construction measurement and positioning device according to claim 8, characterized in that: The protective arch cover (24) is arranged on the top of the level meter body (22) and the two are slidably connected through sliding strips (23) and sliding grooves (25) of matching numbers and specifications. The magnetic block 1 (27) and the magnetic block 2 (28) are magnetically attracted to each other and their positions are matched.

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