Hydraulic engineering pavement height measuring tool

Abstract

The utility model relates to a hydraulic engineering armor height measuring tool, which belongs to the technical field of topographic survey tools, and comprises a range finder arranged at one end of a support rod, a range finder fixer and a spirit level, the support rod is provided with a graduated scale, and one end of the support rod far away from the range finder is detachably provided with a support seat. The supporting seat is provided with a plurality of length-adjustable supporting legs; according to the utility model, the supporting rod is stabilized on the ground of a measuring point, and the efficiency and accuracy of measuring the height of the protective surface are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of topographic surveying tools, in particular to a water conservancy project face height measuring tool. Background Art

[0002] Water conservancy projects are projects built to control and allocate natural surface water and groundwater to achieve the purpose of eliminating harm and promoting benefits. Common types of water conservancy projects include dams. The sides of the dams are inclined with facings. In the maintenance of the dams, the height of the facings is an important source of data, so it is necessary to accurately measure the height of the facings.

[0003] The Chinese patent document with publication number CN103063195A discloses a slope comprehensive measuring instrument, which includes a support rod and a laser rangefinder, a rangefinder fixture, and a circular level installed on the support rod. The laser rangefinder is fixed to the support rod through the rangefinder fixture. The laser rangefinder provides the straight-line distance from the rangefinder to the bottom of the slope. While the rangefinder fixture fixes the rangefinder, the axial scale on the rangefinder provides the angle between the laser emitted by the laser rangefinder and the horizontal plane. The support rod provides the vertical height of the laser rangefinder from the ground, and the circular level provides the vertical height of the laser rangefinder from the ground. The level is used to adjust the support rod to ensure that it is perpendicular to the geoid. The bottom of the support rod is provided with a tip that contacts the measuring point. For soft ground, the support rod is inserted into the ground surface. When measuring, the slope comprehensive measuring instrument is set on the measuring point. After the laser rangefinder is aimed at the foot of the slope, the inclined straight-line distance from the rangefinder to the foot of the slope is measured. The rangefinder fixture obtains the angle between the laser rangefinder and the horizontal plane. The height from the rangefinder to the geoid can be calculated by solving the right triangle, and the height from the measuring point to the geoid can be obtained by combining the scale reading on the support rod.

[0004] The above-mentioned prior art solutions have the following defects: facing the hard ground of the measuring point, the tip of the support rod cannot stabilize the support rod on the ground, and the user needs to support the support rod for measurement. This requires the user to spend extra energy to keep the support rod stable, which reduces the efficiency and accuracy of the measurement. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a water conservancy project face height measuring tool, which can stabilize the support rod on the ground at the measuring point and improve the efficiency and accuracy of measuring the face height.

[0006] The above utility model object of the utility model is achieved through the following technical solutions:

[0007] A water conservancy project face height measuring tool comprises a rangefinder, a rangefinder fixture and a level arranged at one end of a support rod, the support rod is provided with a scale, and a support base is detachably mounted at one end of the support rod away from the rangefinder, and the support base is provided with a plurality of support feet with adjustable lengths.

[0008] Through the above technical solution, the support feet abut against the ground to support the support seat and the support rod. The support seat can increase the area of ​​the bottom of the support rod, and at the same time increase the weight of the bottom of the support rod, lowering the center of gravity of the support rod, so that the support rod can be stabilized on the ground at the measuring point, maintaining the stability of measuring instruments such as rangefinders and rangefinder fixtures, eliminating the trouble of users supporting the support rod, and improving the efficiency and accuracy of measuring the height of the protective surface.

[0009] Furthermore, the support foot comprises a fixing rod connected to the support seat and a base foot threadedly connected to the fixing rod, and the base foot is covered with an anti-slip layer abutting against the ground.

[0010] Through the above technical solution, the base foot is threadedly connected to the fixing rod so that the length of the supporting foot can be changed. Therefore, for uneven ground at the measuring point, the length of a certain supporting foot can be adjusted to adjust the angle between the supporting base and the ground to ensure that the supporting rod is perpendicular to the geoid.

[0011] Furthermore, the bearing surface of the support seat is provided with a clamping groove for the support rod to be clamped, the bottom of the clamping groove is connected to a reinforcement hole that passes through the support seat, the cross-section of the reinforcement hole is smaller than the cross-section of the clamping groove, and the support rod is provided with a reinforcement rod extending out of the reinforcement hole, and the reinforcement rod is threadedly connected with a reinforcement sleeve that abuts against the bottom surface of the support seat.

[0012] Through the above technical solution, the reinforcement rod is passed through the reinforcement hole, and the reinforcement sleeve is threadedly connected to the reinforcement rod to lock the support rod, thereby realizing the detachable installation of the support rod on the support seat. When the support rod needs to be stabilized, the support rod is connected to the support seat to facilitate the storage of the support rod.

[0013] Furthermore, the portion of the support rod that is clamped to the clamping groove is provided with a plurality of flat abutment surfaces along the circumferential direction, and the flat abutment surfaces abut against the corresponding side walls of the clamping groove.

[0014] Through the above technical solution, the abutment between the flat abutting surface and the side wall of the clamping groove can limit the rotation of the support rod in the clamping groove, thereby further maintaining the stability of the support rod.

[0015] Furthermore, the bearing surface of the support seat is rotatably connected to a turntable, the clamping groove is provided on the bearing surface of the turntable, and the support seat is provided with a locking assembly for locking the turntable.

[0016] Through the above technical solution, the turntable can be rotatably connected to the support rod and the support seat, so as to adjust the direction of the rangefinder, and the locking assembly can keep the rotation position of the turntable stable.

[0017] Furthermore, the locking assembly includes a plurality of fixing blocks arranged on the bearing surface of the support seat and close to the turntable, and a locking bolt passing through and threadedly connected to the fixing blocks, and an end of the locking bolt abuts against the side wall of the turntable.

[0018] Through the above technical solution, rotating the locking bolt can limit the rotation of the turntable, thereby achieving the effect of keeping the support rod stable during measurement.

[0019] Furthermore, a connecting ring is provided on the bottom surface of the turntable along the circumferential direction, and an annular groove for the connecting ring to rotate is provided on the bearing surface of the support seat.

[0020] Through the above technical solution, the connecting ring is rotatably connected to the annular groove, thereby realizing the rotatable connection between the turntable and the supporting seat.

[0021] Furthermore, the outer side of the annular groove is connected to a side groove, and the connecting ring is provided with a side ring rotatably connected to the side groove.

[0022] Through the above technical solution, the cooperation between the side ring and the side groove can limit the turntable from leaving the support seat.

[0023] Beneficial effects of the utility model:

[0024] 1. The support foot abuts against the ground to support the support base and the support rod. The support base can increase the area of ​​the bottom of the support rod and increase the weight of the bottom of the support rod, lowering the center of gravity of the support rod, so that the support rod can be stabilized on the ground at the measuring point, maintaining the stability of measuring instruments such as the rangefinder and the rangefinder fixture, eliminating the trouble of users supporting the support rod, and improving the efficiency and accuracy of measuring the height of the protective surface;

[0025] 2. The support foot includes a fixing rod and a base foot, and the base foot is threadedly connected to the fixing rod so that the length of the support foot can be changed, which is convenient for adjusting the inclination angle of the support base to ensure that the support rod is perpendicular to the geoid. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of the three-dimensional structure of this embodiment;

[0027] Figure 2 is a schematic cross-sectional structure diagram of the support base and the support rod of this embodiment;

[0028] Figure 3 It is an exploded view of the support base and the support rod of this embodiment.

[0029] In the figure: 1. rangefinder; 11. rangefinder fixture; 12. level; 13. scale; 2. support rod; 21. flat surface; 22. reinforcement rod; 23. reinforcement sleeve; 3. support seat; 31. support foot; 32. fixing rod; 33. base foot; 34. anti-skid layer; 35. reinforcement hole; 4. turntable; 41. connecting ring; 42. side ring; 43. fixing block; 44. locking bolt; 45. snap-in groove. DETAILED DESCRIPTION

[0030] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0031] like Figure 1 As shown, a water conservancy project face height measuring tool disclosed in the utility model includes a support rod 2 and a support seat 3. The support rod 2 is fixed with a scale 13 along the length direction. The support seat 3 is vertically connected to the bottom of the support rod 2. A rangefinder fixture 11 and a level 12 are installed at one end of the support rod 2 away from the support seat 3. The rangefinder 1 is installed on the rangefinder fixture 11.

[0032] The support seat 3 can increase the area of ​​the bottom of the support rod 2 and increase the weight of the bottom of the support rod 2, so as to lower the center of gravity of the support rod 2, thereby improving the stability of the support rod 2 on the ground at the measuring point. The user does not need to support the support rod 2, and the stability of measuring instruments such as the rangefinder 1 and the rangefinder fixture 11 can be maintained, thereby improving the efficiency and accuracy of measuring the height of the protective surface.

[0033] The rangefinder 1 is placed at the measuring point of the protective surface through the support rod 2 and the support seat 3. After the rangefinder 1 is aimed at the bottom of the protective surface, the inclined straight-line distance from the rangefinder 1 to the bottom of the protective surface is measured by the laser provided by the rangefinder 1, and then the angle between the rangefinder 1 and the horizontal plane is obtained by the rangefinder fixture 11, and then the height from the rangefinder 1 to the geoid is obtained by solving the right triangle, and finally, the height from the measuring point to the geoid is obtained by combining the reading of the scale 13 on the support rod 2 and measuring the distance between the support seat 3 and the ground of the measuring point, thereby obtaining the height of the protective surface.

[0034] like Figure 1As shown, the support seat 3 is in the shape of a rectangular parallelepiped, and support feet 31 are arranged at the four corners of the bottom surface of the support seat 3. The four support feet 31 are all inclined in the direction away from each other, and the support feet 31 are used to support the support seat 3 on the ground; the support foot 31 includes a fixing rod 32 and a base foot 33, one end of the fixing rod 32 is fixed to the bottom surface of the support seat 3, and the side wall of the other end is provided with an external thread, and an end surface of the base foot 33 is provided with a thread groove, and the thread groove cooperates with the external thread of the fixing rod 32 to realize the threaded connection between the fixing rod 32 and the base foot 33; the base foot 33 is rotated, and the relative position of the base foot 33 and the fixing rod 32 changes under the cooperation of the thread, so that the length of the support foot 31 can be adjusted. For the situation that the ground at the measuring point is inclined or uneven, the angle between the support seat 3 and the ground at the measuring point can be changed by adjusting the specific length of the support foot 31, and the offset of the support rod 2 can be judged by the level 12, so as to adjust the support rod 2 to ensure that the support rod 2 is perpendicular to the geoid, thereby improving the accuracy of the measurement and the reliability of the measurement result.

[0035] The end of the base 33 away from the fixing rod 32 is spherical, and the spherical part of the base 33 is covered with an anti-skid layer 34. In this embodiment, the anti-skid layer 34 is specifically a rubber layer. The anti-skid layer 34 can increase the friction resistance when the base 33 contacts the ground, further improving the stability of the support base 3 on the ground.

[0036] like Figure 1 and Figure 2 As shown, a turntable 4 is provided in the middle of the bearing surface of the support seat 3, and the turntable 4 is disc-shaped. A connecting ring 41 is fixed to the bottom surface of the turntable 4 along the circumferential direction, and an annular groove is opened on the bearing surface of the support seat 3, and the connecting ring 41 is rotatably connected to the annular groove; a side ring 42 is fixed to the outer side of the connecting ring 41 along the circumferential direction, and a side groove is vertically connected to the outer side of the annular groove, and the side ring 42 is rotatably connected to the side groove, so that the turntable 4 is rotatably connected to the support seat 3, and at the same time, the cooperation between the side ring 42 and the side groove can limit the connection ring 41 from being separated from the annular groove, thereby limiting the turntable 4 from being separated from the support seat 3; the rotation axis of the turntable 4 is perpendicular to the bearing surface of the support seat 3, and the support rod 2 is detachably mounted on the turntable 4, so that the support rod 2 is rotatably connected to the support seat 3, and when the horizontal direction of the rangefinder 1 needs to be adjusted, the rotation of the support rod 2 can be realized by setting the turntable 4.

[0037] like Figure 1 As shown, the bearing surface of the support seat 3 is provided with a locking assembly. In the present embodiment, the locking assembly comprises a fixing block 43 and a locking bolt 44. Three fixing blocks 43 are provided and fixed at a position of the support seat 3 close to the turntable 4. The fixing blocks 43 are evenly distributed along the circumferential interval of the turntable 4. The locking bolt 44 is passed through and threadedly connected to the fixing block 43. The end of the locking bolt 44 abuts against the side wall of the turntable 4. Tightening the locking bolt 44 can generate a tightening force on the turntable 4 to limit the rotation of the turntable 4, thereby keeping the support rod 2 stable during measurement.

[0038] like Figure 2 and Figure 3 As shown, a snap-in groove 45 is vertically opened in the middle of the bearing surface of the turntable 4, and the snap-in groove 45 passes through the turntable 4, and the cross-section of the snap-in groove 45 is square; one end of the support rod 2 close to the support seat 3 is snapped in the snap-in groove 45, and the part of the support rod 2 snapped in the snap-in groove 45 is circumferentially provided with four flat abutment surfaces 21, and the flat abutment surfaces 21 abut against the corresponding side walls of the snap-in groove 45, so that the support rod 2 cannot rotate in the snap-in groove 45, thereby limiting the relative movement of the support rod 2 and the turntable 4, and further maintaining the stability of the support rod 2; a reinforcement hole 35 is vertically opened in the middle of the support seat 3, and the reinforcement hole 35 passes through the support seat 3, and the reinforcement hole 35 is connected with the snap-in groove 45, and the support rod 2 is fixed with a reinforcement rod 22, and the reinforcement rod 22 is penetrated in the reinforcement hole 35, and the part of the reinforcement rod 22 passing through the reinforcement hole 35 is provided with an external thread and is threadedly connected with a reinforcement sleeve 23, and the reinforcement sleeve 23 abuts against the bottom surface of the support seat 3.

[0039] The cross-sectional area of ​​the reinforcement hole 35 is smaller than the cross-sectional area of ​​the snap-in groove 45, so that the part of the support seat 3 located at the bottom of the snap-in groove 45 can support the support rod 2, and the reinforcement sleeve 23 abuts against the bottom surface of the support seat 3 to limit the reinforcement rod 22 from leaving the reinforcement hole 35, thereby reinforcing the reinforcement rod 22 on the upper and lower sides of the reinforcement hole 35, while maintaining the stability of the connection between the support rod 2 and the support seat 3, it does not affect the rotational connection between the turntable 4 and the support seat 3, thereby ensuring the stability of the support rod 2 during measurement; in addition, through the cooperation of the snap-in groove 45, the reinforcement rod 22, the reinforcement hole 35 and the reinforcement sleeve 23, the support rod 2 can be detachably installed on the support seat 3, so that the water conservancy project surface height measurement tool can be disassembled when not in use, reducing the volume and facilitating storage.

[0040] The implementation principle of this embodiment is:

[0041] The reinforcement rod 22 is inserted into the reinforcement hole 35, the end of the support rod 2 with the flat abutment surface 21 is clamped into the clamping groove 45, and then the reinforcement sleeve 23 is threadedly connected to the reinforcement rod 22 to complete the installation of the support rod 2; the base foot 33 is rotated to adjust the length of the support foot 31, and the support rod 2 is adjusted to be perpendicular to the geoid with the cooperation of the level 12; the turntable 4 is rotated to adjust the horizontal direction of the rangefinder 1, and the locking bolt 44 is tightened to fix the turntable 4 so that the horizontal direction of the rangefinder 1 is fixed.

[0042] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A water conservancy project face height measuring tool, comprising a distance meter (1), a distance meter fixture (11) and a level (12) arranged at one end of a support rod (2), wherein the support rod (2) is provided with a scale (13), and is characterized in that: A support base (3) is detachably mounted on one end of the support rod (2) away from the rangefinder (1), and the support base (3) is provided with a plurality of support legs (31) of adjustable length.

2. A hydraulic engineering face height measuring tool according to claim 1, characterized in that: The support foot (31) comprises a fixing rod (32) connected to the support seat (3) and a base foot (33) threadedly connected to the fixing rod (32); the base foot (33) is covered with an anti-slip layer (34) that abuts against the ground.

3. A hydraulic engineering face height measuring tool according to claim 1, characterized in that: The bearing surface of the support seat (3) is provided with a clamping groove (45) for clamping the support rod (2); the bottom of the clamping groove (45) is connected to a reinforcement hole (35) penetrating the support seat (3); the cross section of the reinforcement hole (35) is smaller than the cross section of the clamping groove (45); the support rod (2) is provided with a reinforcement rod (22) extending out of the reinforcement hole (35); the reinforcement rod (22) is threadedly connected to a reinforcement sleeve (23) abutting against the bottom surface of the support seat (3).

4. A hydraulic engineering face height measuring tool according to claim 3, characterized in that: The portion of the support rod (2) that is clamped to the clamping groove (45) is provided with a plurality of flat abutment surfaces (21) along the circumferential direction, and the flat abutment surfaces (21) abut against the corresponding side walls of the clamping groove (45).

5. A hydraulic engineering face height measuring tool according to claim 3, characterized in that: The bearing surface of the support seat (3) is rotatably connected to a turntable (4), the engaging groove (45) is provided on the bearing surface of the turntable (4), and the support seat (3) is provided with a locking assembly for locking the turntable (4).

6. A hydraulic engineering face height measuring tool according to claim 5, characterized in that: The locking assembly comprises a plurality of fixing blocks (43) arranged on the bearing surface of the support seat (3) and close to the turntable (4), and a locking bolt (44) passing through and threadedly connected to the fixing block (43), wherein the end of the locking bolt (44) abuts against the side wall of the turntable (4).

7. A hydraulic engineering face height measuring tool according to claim 5, characterized in that: The bottom surface of the turntable (4) is provided with a connecting ring (41) along the circumferential direction, and the bearing surface of the support seat (3) is provided with an annular groove for the connecting ring (41) to rotate.

8. A hydraulic engineering face height measuring tool according to claim 7, characterized in that: The outer side of the annular groove is connected to a side groove, and the connecting ring (41) is provided with a side ring (42) rotatably connected to the side groove.

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