An automatic leveling level tripod used in construction engineering

Abstract

The present invention relates to an automatic leveling level tripod used in construction engineering, comprising an annular frame, a leveling assembly fixedly arranged on the circumferential side of the annular frame, a tensioning assembly arranged in the middle of the annular frame, a leveling assembly arranged on the upper side of the tensioning assembly, a transmission assembly arranged on the side of the tensioning assembly, a locking assembly arranged at one end of the transmission assembly, and a first leg arranged on one side of the leveling assembly. Therefore, liquid will flow into the corresponding liquid containing tank according to the inclination of the annular frame, and finally the liquid levels in the three liquid containing tanks are all in the same horizontal plane. When the installation disk loses its constraint, the liquid in the three liquid containing tanks can automatically place the installation disk in a horizontal position through the leveling float. The whole process is simple to operate, and the leveling is accurate and fast, which shortens the time for leveling the installation level and improves work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of tripods, and in particular to an automatic leveling level tripod used in construction engineering. Background Art

[0002] In construction projects, it is usually necessary to survey the construction site and measure the height difference between two points, which requires the use of a level and a tripod for installation. In addition, in construction projects, it is usually necessary to measure the distance between multiple points. Therefore, in order to shorten the measurement time and improve work efficiency, the level and tripod are required to quickly level and start measuring.

[0003] The existing tripods used in construction projects can only be roughly leveled by visual inspection. They have a simple structure, but the adjustment is complicated, time-consuming and labor-intensive. In addition, since the tripod is only leveled by visual inspection, the error is large. After the level is installed, the level needs to be leveled again. The complicated operation reduces work efficiency and is not conducive to use.

[0004] In order to solve the above problems, the present invention proposes an automatic leveling level tripod used in construction engineering. Summary of the invention

[0005] (1) Technical issues to be resolved

[0006] The purpose of the present invention is to overcome the problems in the prior art, meet the actual needs, and provide an automatic leveling level tripod used in construction projects to solve the above technical problems.

[0007] (2) Technical solution

[0008] In order to achieve the purpose of the present invention, the technical solution adopted by the present invention is: an automatic leveling level tripod used in construction projects, comprising an annular frame body, a leveling assembly is fixedly arranged on the circumferential side of the annular frame body, a tensioning assembly is arranged in the middle part of the annular frame body, a leveling assembly is arranged on the upper side of the tensioning assembly, a transmission assembly is arranged on the side of the tensioning assembly, a locking assembly is arranged at one end of the transmission assembly, and a first leg is arranged on one side of the leveling assembly.

[0009] The leveling assembly includes a liquid containing tank, which is fixedly arranged on the circumferential side of the annular frame. A leveling float is arranged on the upper side of the liquid containing tank. A pillar is fixedly arranged on the upper side of the leveling float. The lower end of the pillar is fixedly arranged on the side surface of the leveling float, and the upper end is fixedly arranged on the lower surface of the mounting disk. A supporting ball is fixedly arranged in the middle of the mounting disk.

[0010] The tensioning assembly includes a threaded transmission rod, which is rotatably arranged in the middle of the annular frame. An annular groove is provided on the upper side of the threaded transmission rod, and a push-pull block is arranged in the annular groove. A tensioning ring is fixedly arranged on the upper end of the push-pull block, and a clamping piece is arranged on the inner side of the tensioning ring. A supporting ball is movably arranged in the clamping piece. The clamping piece is fixedly arranged on the upper side of the annular frame, and a support arm of the push-pull block passes through the clamping piece and extends upward to the tensioning ring.

[0011] The transmission assembly includes a slider, which is slidably arranged inside the annular frame, one end of the slider extends to one side of the threaded transmission rod, and the other end extends to the upper side of the first leg, first springs are arranged on both sides of the slider, one end of the first spring is fixedly arranged on the annular frame, and the other end is fixedly arranged on one end of the slider, a sliding rod is arranged on the arc inclined block side of the slider, and the sliding rod is slidably arranged in the first leg, a transmission ball is rotatably arranged on one end of the sliding rod, and the other end is an inclined surface and extends to the locking assembly.

[0012] The locking assembly includes a support block, which is fixedly arranged on the lower side of the first leg, a locking block is slidably arranged inside the support block, a second spring is fixedly arranged on the lower side of the locking block, one end of the second spring is fixedly arranged on one side of the locking block, and the other side is fixedly arranged on the inner side wall of the support block, a rotating shaft is rotatably arranged in the middle part of the locking block, and a sliding rod is arranged on one side of the rotating shaft.

[0013] An arc-shaped support rod is swingably arranged on one side of the support block, and a retaining block is arranged at the end of the arc-shaped support rod. One end of the arc-shaped support rod is swingably arranged on one side of the support block, and the other end is swingably arranged on one side of the retaining block.

[0014] A second leg is slidably arranged at the lower side of the first leg, and a rack is arranged at one side of the second leg.

[0015] An annular connecting groove is provided at the lower part of the liquid containing groove.

[0016] The interior of the leveling float is hollow, which is beneficial to automatic leveling. Beneficial Effects

[0017] 1. The middle part of the leveling float is hollow, which reduces the mass and is beneficial for the installation of the magnetic disk through the liquid in the liquid containing tank. When the present invention is used, the liquid is first poured into one of the three liquid containing tanks. At this time, since the lower part of the three liquid containing tanks is provided with an annular connecting groove, the liquid will flow into the corresponding liquid containing tank according to the inclination of the annular frame, and finally the liquid levels in the three liquid containing tanks are all in the same horizontal plane. When the installation magnetic disk loses its constraint, the liquid in the three liquid containing tanks can automatically place the installation magnetic disk in a horizontal position through the leveling float. The whole process is simple to operate, and the leveling is accurate and fast, which shortens the time for leveling the installation level and improves the work efficiency.

[0018] 2. In the scheme, the threaded transmission rod is rotated, and the threaded transmission rod moves upward through the threaded hole in the middle of the annular frame, and the push-pull block rotatably arranged at the upper end of the threaded transmission rod and the tension ring fixed thereon also move upward. When the tension ring moves upward, the clamping member loses its force, and the supporting ball and the mounting disk fixed thereon also lose their constraints. At this time, since a certain volume of liquid is contained in the liquid containing tank, and the liquid levels in the three liquid containing tanks are all in the same horizontal plane, when the mounting disk loses its constraints, the leveling floating blocks fixed thereunder also lose their constraints, and are applied with buoyancy by the liquid on their respective lower sides, and finally the mounting disk is placed horizontally. In this scheme, the mounting disk is fixed by the clamping member, which can allow the mounting disk to be tilted in any direction with a large angle, and the fixing effect is good.

[0019] 3. When the threaded transmission rod rotates and moves upward, under the action of the arc-shaped inclined surface at the upper end of the threaded transmission rod, the first springs on both sides of the slider are compressed, and the slider is pushed away from the center line of the threaded hole in the middle of the annular frame and moves around the annular frame. As the slider moves around the annular frame, the inclined surface at its end contacts the transmission ball and pushes the sliding rod arranged below it downward. The sliding rod moves downward and the locking assembly is actuated through the inclined surface at its lower end, and finally the second leg is lowered. The setting of the transmission assembly ensures the implementation of the present invention, so that when the threaded transmission rod is actuated to clamp the installed disk, the locking assembly is actuated to achieve the effect of lowering or locking the second leg, which simplifies the operation and shortens the working time. In addition, the transmission mode in the whole process is mostly sliding, which is stable, reliable and practical.

[0020] 4. When the sliding rod moves downward, the inclined surface at its lower end will contact the rotating shaft rotatably arranged on the locking block, and cause the locking block to slide toward the side away from the second leg. Finally, the locking block loses its fixing force on the second leg, and the second leg slides downward under the action of gravity until all three second legs touch the ground. The locking assembly relies on the transmission assembly to lock and release the second leg, and acts simultaneously with the tensioning assembly, without the need for separate operation, which greatly shortens the propping time of the present invention.

[0021] 5. The mounting method of the bracket and the level meter of the present invention adopts magnetic attraction instead of the traditional bolt connection method. Among them, the upper surface of the mounting disk is a magnet, which adsorbs the lower surface of the level meter. This mounting method is not only fast in installation speed, but also because the mounting disk itself is horizontal, the magnetic force on the mounting disk does not need to be too large, ensuring that the fixed mounting disk is not affected during the installation and removal of the level meter. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of an automatic leveling level tripod used in construction engineering according to the present invention;

[0023] Figure 2 It is a structural schematic diagram of another angle of a tripod of an automatic leveling level used in construction engineering of the present invention;

[0024] Figure 3 The invention discloses an automatic leveling level tripod used in construction engineering. Figure 2 Schematic diagram of the structure at A;

[0025] Figure 4 The invention discloses an automatic leveling level tripod used in construction engineering. Figure 3 Schematic diagram of the structure at C in the middle;

[0026] Figure 5 The invention discloses an automatic leveling level tripod used in construction engineering. Figure 2 Schematic diagram of the structure at B in the middle;

[0027] Figure 6 The invention discloses an automatic leveling level tripod used in construction engineering. Figure 5 Schematic diagram of the structure at D in FIG.

[0028] Figure 7 It is a structural schematic diagram of another angle of a tensioning assembly of a tripod of an automatic leveling level used in construction engineering according to the present invention;

[0029] Figure 8 The invention discloses an automatic leveling level tripod used in construction engineering. Figure 7 Schematic diagram of the structure at E in the middle;

[0030] Fig. 9 It is a schematic structural diagram of another angle of a locking assembly of a tripod of an automatic leveling level used in construction engineering according to the present invention;

[0031] Fig.10It is a structural schematic diagram of a slider and a first spring of a tripod of an automatic leveling level used in construction engineering according to the present invention;

[0032] Fig.11 The present invention is a partial cross-sectional view at another angle of a locking assembly of a tripod of an automatic leveling level used in construction engineering.

[0033] The reference numerals are as follows:

[0034] 1-annular frame, 2-leveling assembly, 21-liquid containing tank, 22-leveling floating block, 23-pillar, 24-mounting disk, 25-support ball, 26-annular connecting groove, 3-tensioning assembly, 31-threaded transmission rod, 32-annular groove, 33-push-pull block, 34-tensioning ring, 35-clamping member, 4-transmission assembly, 41-slider, 42-first spring, 43-sliding rod, 44-transmission ball, 5-locking assembly, 51-support block, 52-locking block, 53-second spring, 54-rotating shaft, 6-first leg, 7-arc support rod, 8-holding block, 9-second leg. Implementation

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] The following is combined with Figure 1-11 The present invention is further described with examples:

[0037] In this embodiment, Figure 1-11As shown, an automatic leveling level tripod used in construction engineering comprises an annular frame 1, a leveling assembly 2 is fixedly arranged on the circumferential side of the annular frame 1, a tensioning assembly 3 is arranged in the middle of the annular frame 1, the leveling assembly 2 is arranged on the upper side of the tensioning assembly 3, a transmission assembly 4 is arranged on the side of the tensioning assembly 3, a locking assembly 5 is arranged at one end of the transmission assembly 4, and a first leg 6 is arranged on one side of the leveling assembly 2. When the present invention is used, first, liquid is poured along one of the three liquid containing grooves 21. At this time, since the lower part of the three liquid containing grooves 21 is provided with an annular connecting groove 26, the liquid will flow into the corresponding liquid containing groove 21 according to the inclination of the annular frame 1, and finally the liquid levels in the three liquid containing grooves 21 are all in the same horizontal plane. Secondly, pull down the holding block 8 to open the three first legs 6 in their respective directions, rotate the threaded transmission rod 31, and the threaded transmission rod 31 moves upward through the threaded hole in the middle of the annular frame 1, and the push-pull block 33 rotatably arranged on the upper end of the threaded transmission rod 31 and the tensioning ring 34 fixed thereon also move upward. When the tensioning ring 34 moves upward, the clamping member 35 loses its force, and the supporting ball 25 and the mounting disk 24 fixed thereon also lose their constraints. At this time, since a certain volume of liquid is contained in the liquid containing tank 21, and the liquid levels in the three liquid containing tanks 21 are all in the same horizontal plane, when the mounting disk 24 loses its constraint, the fixedly arranged The leveling floats 22 also lose their constraints and are exerted with buoyancy by the liquid on their respective lower sides, ultimately achieving horizontal placement of the installed disk 24. In this solution, an annular connecting groove 26 is provided on the lower sides of the three liquid containing grooves 21. The annular connecting groove 26 connects the three liquid containing grooves 21 so that no matter how the annular frame 1 tilts, the liquids in the three liquid containing grooves 21 are kept in the same horizontal plane. When the installed disk 24 loses its constraints, the liquids in the three liquid containing grooves 21 can automatically place the installed disk 24 in a horizontal position through the leveling floats 22. The whole process is simple to operate, and the leveling is accurate and fast, which shortens the time for leveling the installation level and improves work efficiency. At the same time as the above process, the threaded transmission rod 31 rotates and moves upward. Under the action of the arc-shaped inclined surface on the upper end of the threaded transmission rod 31, the first springs 42 on both sides of the slider 41 are compressed, and the slider 41 is pushed away from the center line of the threaded hole in the middle of the annular frame 1 and moves around the annular frame 1. As the slider 41 moves around the annular frame 1, the inclined surface at its end contacts the transmission ball 44 and pushes the sliding rod 43 arranged thereunder downward. The sliding rod 43 moves downward, and the inclined surface at its lower end contacts the rotating shaft 54 ​​rotatably arranged on the locking block 52, causing the locking block 52 to slide toward the side away from the second leg 9. Finally, the locking block 52 loses its fixing force on the second leg 9, and the second leg 9 slides downward under the action of gravity until all three second legs 9 contact the ground.Finally, the threaded transmission rod 31 is rotated in the opposite direction, the threaded transmission rod 31 moves downward, the push-pull block 33 rotatably arranged thereon and the tension ring 34 fixedly arranged on the upper end of the push-pull block 33 move downward, the clamping member 35 is exerted with an inward force, and fixes the support ball 25 and the mounting disk 24 which has been automatically leveled thereon. At the same time as this process, the slider 41 is reset under the action of the first spring 42, and the locking block 52 and the sliding rod 43 are reset under the action of the second spring 53, at which time, the second leg 9 is fixed again. Figure 1 The first leg 6 of the present invention is shown in an open state. At this time, the threaded transmission rod 31 rotates to the lower part of the threaded hole in the middle of the annular frame 1, and the push-pull block 33 on it passes through the tension ring 34, so that the upper end of the clamping member 35 is bent inward to clamp and fix the support ball 25, and the mounting disk 24 fixedly connected to the support ball 25 is fixed. The position of the slider 41 is as shown in FIG. Figure 2 As shown, no force is applied to the sliding rod 43, and the locking assembly 5 is as shown in FIG. Fig. 9 As shown, the second leg 9 is extended and fixed. In the technical solution of the present invention, firstly, the tripod only needs to be placed at the position to be measured and the mounting disk 24 is loosened, and the leveling can be automatically achieved, and the leveling effect is good and the precision is high. There is no need to operate the level on the mounting disk 24 for secondary leveling, which simplifies the operation, shortens the measurement time and greatly improves the work efficiency. Secondly, when the bracket of the present invention is moved and the measurement location is changed, the level set on the mounting disk 24 needs to be removed first, and then the above operation is performed, which requires that the mounting disk 24 and the level can be quickly assembled and the mounting disk 24 that has been leveled and fixed is not affected during assembly. In order to solve the above problems, the mounting method of the bracket and the level of the present invention adopts magnetic attraction instead of the traditional bolt connection method. Among them, the upper surface of the mounting disk 24 is a magnet, which adsorbs the lower surface of the level. This installation method not only has a fast installation speed, but also because the mounting disk 24 itself is horizontal, the magnetic force on the mounting disk 24 does not need to be too large, which ensures that the fixed mounting disk 24 is not affected during the installation and removal of the level.

[0038] The leveling assembly 2 includes a liquid containing tank 21, which is fixedly arranged on the circumferential side of the annular frame 1. A leveling float 22 is arranged on the upper side of the liquid containing tank 21. A support 23 is fixedly arranged on the upper side of the leveling float 22. The lower end of the support 23 is fixedly arranged on the side surface of the leveling float 22, and the upper end is fixedly arranged on the lower surface of the mounting disk 24. A supporting ball 25 is fixedly arranged in the middle of the mounting disk 24. The upper surface of the mounting disk 24 is a magnet with a certain suction force, which is used to install a level meter adsorbed thereon. A through hole is opened on the mounting disk 24, which reduces the weight of the mounting disk 24 and is beneficial to the automatic leveling of the mounting disk 24 through the buoyancy of the liquid. The middle part of the leveling float 22 is hollow, which reduces the mass and is beneficial to the mounting disk 24 to level through the liquid in the liquid containing tank 21. The working principle of the component is that the liquid is first poured into one of the three liquid containing grooves 21. At this time, since the lower part of the three liquid containing grooves 21 is provided with an annular connecting groove 26, the liquid will flow into the corresponding liquid containing groove 21 according to the inclination of the annular frame 1, and finally the liquid levels in the three liquid containing grooves 21 are all in the same horizontal plane. When the mounting disk 24 loses its constraint, the liquid in the three liquid containing grooves 21 can automatically place the mounting disk 24 in a horizontal position through the leveling float 22. The whole process is simple to operate, and the leveling is accurate and fast, which shortens the time for leveling the installation level and improves work efficiency.

[0039] The tensioning assembly 3 includes a threaded transmission rod 31, which is rotatably arranged in the middle of the annular frame 1. An annular groove 32 is opened on the upper side of the threaded transmission rod 31, and a push-pull block 33 is arranged in the annular groove 32. A tensioning ring 34 is fixedly arranged on the upper end of the push-pull block 33, and a clamping member 35 is arranged on the inner side of the tensioning ring 34. A supporting ball 25 is movably arranged in the clamping member 35. The clamping member 35 is fixedly arranged on the upper side of the annular frame 1, and the support arm of the push-pull block 33 passes through the clamping member 35 and extends upward to the tensioning ring 34. The threaded transmission rod 31 is rotated, and the threaded transmission rod 31 moves upward through the threaded hole in the middle of the annular frame 1, and the push-pull block 33 rotatably arranged on the upper end of the threaded transmission rod 31 and the tensioning ring 34 fixed thereon also move upward. The upward movement of the tensioning ring 34 will lose the force on the clamping member 35, and the supporting ball 25 and the mounting disk 24 fixed thereon will also lose their constraints. At this time, since a certain volume of liquid is contained in the liquid containing tank 21, and the liquid levels in the three liquid containing tanks 21 are all in the same horizontal plane, when the mounting disk 24 loses its constraint, the leveling floating block 22 fixed thereunder also loses its constraint and is applied buoyancy by the liquid on its respective lower side, finally realizing the horizontal placement of the mounting disk 24. In this scheme, the mounting disk 24 is fixed by the clamping member 35, which can allow the mounting disk 24 to have a large angle of inclination in any direction, and the fixing effect is good.

[0040] The transmission assembly 4 includes a slider 41, which is slidably arranged inside the annular frame 1, one end of the slider 41 extends to one side of the threaded transmission rod 31, and the other end extends to the upper side of the first leg 6, and first springs 42 are arranged on both sides of the slider 41, one end of the first spring 42 is fixedly arranged on the annular frame 1, and the other end is fixedly arranged on one end of the slider 41, and a sliding rod 43 is arranged on the arc inclined block side of the slider 41, and the sliding rod 43 is slidably arranged in the first leg 6, a transmission ball 44 is rotatably arranged on one end of the sliding rod 43, and the other end is an inclined surface and extends to the locking assembly 5. When the threaded transmission rod 31 rotates and moves upward, under the action of the arc-shaped inclined surface at the upper end of the threaded transmission rod 31, the first springs 42 on both sides of the slider 41 are compressed, and the slider 41 is pushed away from the center line of the threaded hole in the middle of the annular frame 1 and moves around the annular frame 1. As the slider 41 moves around the annular frame 1, the inclined surface at its end will contact the transmission ball 44 and push the sliding rod 43 arranged thereunder downward. The sliding rod 43 moves downward and the locking assembly 5 is actuated through the inclined surface at its lower end, and finally the second leg 9 is lowered. The setting of the transmission assembly 4 ensures the implementation of the present invention, so that when the threaded transmission rod 31 is actuated to clamp the installation disk 24, the locking assembly 5 is actuated and the second leg 9 is lowered or locked, which simplifies the operation and shortens the working time. In addition, the transmission mode in the whole process is mostly sliding, which is stable, reliable and practical.

[0041] The locking assembly 5 includes a support block 51, which is fixedly arranged on the lower side of the first leg 6. A locking block 52 is slidably arranged inside the support block 51. A second spring 53 is fixedly arranged on the lower side of the locking block 52. One end of the second spring 53 is fixedly arranged on one side of the locking block 52, and the other side is fixedly arranged on the inner side wall of the support block 51. A rotating shaft 54 ​​is rotatably arranged in the middle of the locking block 52, and a sliding rod 43 is arranged on one side of the rotating shaft 54. When the sliding rod 43 moves downward, the inclined surface of its lower end will contact the rotating shaft 54 ​​rotatably arranged on the locking block 52, and cause the locking block 52 to slide toward the side away from the second leg 9. Finally, the locking block 52 loses its fixing force on the second leg 9, and the second leg 9 slides downward under the action of gravity until all three second legs 9 contact the ground. The locking assembly 5 relies on the transmission assembly 4 to lock and release the second leg 9, and acts simultaneously with the tensioning assembly 3, without the need for separate operation, which greatly shortens the propping time of the present invention.

[0042] An arc-shaped support rod 7 is swingably provided on one side of the support block 51, and a retaining block 8 is provided at the end of the arc-shaped support rod 7. One end of the arc-shaped support rod 7 is swingably provided on one side of the support block 51, and the other end is swingably provided on one side of the retaining block 8. The provision of the retaining block 8 is beneficial to spread out the three first legs 6. When in use, it only needs to be pulled down, making the operation of the present invention more convenient and more practical.

[0043] The lower side of the first leg 6 is slidably provided with a second leg 9, and a rack is provided on one side of the second leg 9. The rack is provided on one side of the second leg 9 to facilitate cooperation with the locking block 52 to achieve a better fixing effect.

[0044] An annular connecting groove 26 is provided at the lower part of the liquid containing groove 21 to ensure that the liquid level in each liquid containing groove 21 is in the same horizontal plane, so as to realize the action of the leveling assembly 2 of the present invention.

[0045] The interior of the leveling float 22 is hollow, which is beneficial to automatic leveling, reducing the mass, and is beneficial to the movement of the leveling assembly 2.

[0046] Beneficial effects of the present invention:

[0047] The middle part of the leveling float 22 is hollow, which reduces the mass and is beneficial for the installation disk 24 to be leveled by the liquid in the liquid containing tank 21. When the present invention is used, the liquid is first poured into one of the three liquid containing tanks 21. At this time, since the lower part of the three liquid containing tanks 21 is provided with an annular connecting groove 26, the liquid will flow into the corresponding liquid containing tank 21 according to the inclination of the annular frame 1, and finally the liquid levels in the three liquid containing tanks 21 are all in the same horizontal plane. When the installation disk 24 loses its constraint, the liquid in the three liquid containing tanks 21 can automatically place the installation disk 24 in a horizontal position through the leveling float 22. The whole process is simple to operate, and the leveling is accurate and fast, which shortens the time for leveling the installation level and improves the work efficiency.

[0048] In the scheme, the threaded transmission rod 31 is rotated, and the threaded transmission rod 31 moves upward through the threaded hole in the middle of the annular frame 1, and the push-pull block 33 rotatably arranged on the upper end of the threaded transmission rod 31 and the tension ring 34 fixed thereon also move upward. When the tension ring 34 moves upward, the clamping member 35 loses its force, and the supporting ball 25 and the mounting disk 24 fixed thereon also lose their constraints. At this time, since a certain volume of liquid is contained in the liquid containing tank 21, and the liquid levels in the three liquid containing tanks 21 are all in the same horizontal plane, when the mounting disk 24 loses its constraint, the leveling floating block 22 fixed thereunder also loses its constraint, and is applied with buoyancy by the liquid on its respective lower side, and finally the mounting disk 24 is horizontally placed. In this scheme, the mounting disk 24 is fixed by the clamping member 35, and the mounting disk 24 can be allowed to be tilted in any direction with a large angle, and the fixing effect is good.

[0049] When the threaded transmission rod 31 rotates and moves upward, under the action of the arc-shaped inclined surface at the upper end of the threaded transmission rod 31, the first springs 42 on both sides of the slider 41 are compressed, and the slider 41 is pushed away from the center line of the threaded hole in the middle of the annular frame 1 and moves around the annular frame 1. As the slider 41 moves around the annular frame 1, the inclined surface at its end will contact the transmission ball 44 and push the sliding rod 43 arranged thereunder downward. The sliding rod 43 moves downward and the locking assembly 5 is actuated through the inclined surface at its lower end, and finally the second leg 9 is lowered. The setting of the transmission assembly 4 ensures the implementation of the present invention, so that when the threaded transmission rod 31 is actuated to clamp the mounting disk 24, the locking assembly 5 is actuated and the second leg 9 is lowered or locked, which simplifies the operation and shortens the working time. In addition, the transmission mode in the whole process is mostly sliding, which is stable, reliable and practical.

[0050] When the sliding rod 43 moves downward, the inclined surface of its lower end will contact the rotating shaft 54 ​​rotatably arranged on the locking block 52, and cause the locking block 52 to slide toward the side away from the second leg 9. Finally, the locking block 52 loses its fixing force on the second leg 9, and the second leg 9 slides downward under the action of gravity until all three second legs 9 contact the ground. The locking assembly 5 relies on the transmission assembly 4 to lock and release the second leg 9, and acts simultaneously with the tensioning assembly 3, without the need for separate operation, which greatly shortens the propping time of the present invention.

[0051] The mounting method of the bracket and the level meter of the present invention adopts magnetic attraction instead of the traditional bolt connection method. The upper surface of the mounting disk 24 is a magnet, which adsorbs the lower surface of the level meter. This mounting method not only has a fast mounting speed, but also because the mounting disk 24 itself is horizontal, the magnetic force on the mounting disk 24 does not need to be too large, ensuring that the fixed mounting disk 24 is not affected during the installation and removal of the level meter.

[0052] Working principle:

[0053] In the scheme of the present invention, first, the liquid is poured into one of the three liquid containing grooves 21. At this time, since the lower part of the three liquid containing grooves 21 is provided with an annular connecting groove 26, the liquid will flow into the corresponding liquid containing groove 21 according to the inclination of the annular frame 1, and finally the liquid levels in the three liquid containing grooves 21 are all in the same horizontal plane. Secondly, the pull-down retaining block 8 opens the three first legs 6 in their respective directions, and the threaded transmission rod 31 is rotated. The threaded transmission rod 31 moves upward through the threaded hole in the middle of the annular frame 1, and the push-pull block 33 rotatably arranged at the upper end of the threaded transmission rod 31 and the tension ring 34 fixed thereon also move upward. The upward movement of the tension ring 34 will lose the force on the clamping member 35, and the support ball 25 and the mounting disk 24 fixed thereon will also lose their constraints. At this time, since a certain volume of liquid is contained in the liquid containing groove 21, and the liquid levels in the three liquid containing grooves 21 are all in the same horizontal plane, when the mounting disk 24 loses its constraints, the fixed disk 24 below it will be moved upward. The leveling floats 22 also lose their constraints and are exerted with buoyancy by the liquid on their respective lower sides, ultimately achieving horizontal placement of the installed magnetic disk 24. In this solution, an annular connecting groove 26 is provided on the lower sides of the three liquid containing grooves 21. The annular connecting groove 26 connects the three liquid containing grooves 21 so that no matter how the annular frame 1 tilts, the liquids in the three liquid containing grooves 21 are kept in the same horizontal plane. When the installed magnetic disk 24 loses its constraints, the liquids in the three liquid containing grooves 21 can automatically place the installed magnetic disk 24 in a horizontal position through the leveling floats 22. The whole process is simple to operate, and the leveling is accurate and fast, which shortens the time for leveling the installation level and improves work efficiency. At the same time as the above process, the threaded transmission rod 31 rotates and moves upward. Under the action of the arc-shaped inclined surface on the upper end of the threaded transmission rod 31, the first springs 42 on both sides of the slider 41 are compressed, and the slider 41 is pushed away from the center line of the threaded hole in the middle of the annular frame 1 and moves around the annular frame 1. As the slider 41 moves around the annular frame 1, the inclined surface at its end contacts the transmission ball 44 and pushes the sliding rod 43 arranged thereunder downward. The sliding rod 43 moves downward, and the inclined surface at its lower end contacts the rotating shaft 54 ​​rotatably arranged on the locking block 52, causing the locking block 52 to slide toward the side away from the second leg 9. Finally, the locking block 52 loses its fixing force on the second leg 9, and the second leg 9 slides downward under the action of gravity until all three second legs 9 contact the ground. Finally, the threaded transmission rod 31 is rotated in the opposite direction, and the threaded transmission rod 31 moves downward, and the push-pull block 33 rotatably arranged thereon and the tensioning ring 34 fixedly arranged at the upper end of the push-pull block 33 move downward, and the clamping member 35 is exerted with an inward force and fixes the supporting ball 25 and the mounting disk 24 which has been automatically leveled thereon.At the same time as this process, the slider 41 is reset under the action of the first spring 42, and the locking block 52 and the sliding rod 43 are reset under the action of the second spring 53. At this time, the second leg 9 is fixed again. Figure 1 The first leg 6 of the present invention is shown in an open state. At this time, the threaded transmission rod 31 rotates to the lower part of the threaded hole in the middle of the annular frame 1, and the push-pull block 33 on it passes through the tension ring 34, so that the upper end of the clamping member 35 is bent inward to clamp and fix the support ball 25, and the mounting disk 24 fixedly connected to the support ball 25 is fixed. The position of the slider 41 is as shown in FIG. Figure 2 As shown, no force is applied to the sliding rod 43, and the locking assembly 5 is as shown in FIG. Fig. 9 As shown, the second leg 9 is extended and fixed. In the technical solution of the present invention, it is only necessary to place the tripod at the position to be measured and loosen the mounting disk 24, so that it can be automatically leveled, and the leveling effect is good and the precision is high, and there is no need to operate the level on the mounting disk 24 for secondary leveling, which simplifies the operation, shortens the measurement time and greatly improves the work efficiency. In the technical solution of the present invention, firstly, it is only necessary to place the tripod at the position to be measured and loosen the mounting disk 24, so that it can be automatically leveled, and the leveling effect is good and the precision is high, and there is no need to operate the level on the mounting disk 24 for secondary leveling, which simplifies the operation, shortens the measurement time and greatly improves the work efficiency. Secondly, when the bracket of the present invention is moved and the measurement location is changed, it is necessary to remove the level set on the mounting disk 24 first, and then perform the above operation, which requires that the mounting disk 24 and the level can be quickly assembled and the mounting disk 24 that has been leveled and fixed is not affected during assembly. In order to solve the above problems, the mounting method of the bracket and the level of the present invention adopts magnetic suction instead of the traditional bolt connection method. The upper surface of the mounting disk 24 is a magnet, which adsorbs the lower surface of the level. This mounting method is not only fast, but also because the mounting disk 24 itself is horizontal, the magnetic force on the mounting disk 24 does not need to be too large, ensuring that the fixed mounting disk 24 is not affected during the installation and removal of the level.

[0054] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. An automatic leveling level tripod used in construction engineering, comprising a ring-shaped frame (1), characterized in that: A leveling assembly (2) is fixedly arranged on the circumferential side of the annular frame (1); a tensioning assembly (3) is arranged in the middle of the annular frame (1); a leveling assembly (2) is arranged on the upper side of the tensioning assembly (3); a transmission assembly (4) is arranged on the side of the tensioning assembly (3); a locking assembly (5) is arranged at one end of the transmission assembly (4); and a first leg (6) is arranged on one side of the leveling assembly (2); the leveling assembly (2) comprises a liquid containing tank (21); the liquid containing tank (21) is fixedly arranged on the circumferential side of the annular frame (1); a leveling float (22) is arranged on the upper side of the liquid containing tank (21); a support (23) is fixedly arranged on the upper side of the leveling float (22); and the support (23) is fixedly arranged on the upper side of the leveling float (22). The lower end of the (23) is fixedly arranged on the side surface of the leveling float (22), and the upper end is fixedly arranged on the lower surface of the mounting disk (24), and a supporting ball (25) is fixedly arranged in the middle of the mounting disk (24); the tensioning assembly (3) comprises a threaded transmission rod (31), the threaded transmission rod (31) is rotatably arranged in the middle of the annular frame (1), an annular groove (32) is provided on the upper side of the threaded transmission rod (31), a push-pull block (33) is arranged in the annular groove (32), a tensioning ring (34) is fixedly arranged on the upper end of the push-pull block (33), a clamping member (35) is arranged on the inner side of the tensioning ring (34), a supporting ball (25) is movably arranged in the clamping member (35), and the clamping member (35) The push-pull block (33) is fixedly arranged on the upper side of the annular frame (1), and the support arm of the push-pull block (33) passes through the clamping piece (35) and extends upward to the tensioning ring (34); the transmission assembly (4) comprises a slider (41), which is slidably arranged inside the annular frame (1), one end of the slider (41) extends to one side of the threaded transmission rod (31), and the other end extends to the upper side of the first support leg (6), and first springs (42) are arranged on both sides of the slider (41), one end of the first spring (42) is fixedly arranged on the annular frame (1), and the other end is fixedly arranged on one end of the slider (41), and a sliding rod (43) is arranged on the arc inclined block side of the slider (41), and the sliding rod (43) is slidably arranged In the first leg (6), one end of the sliding rod (43) is rotatably provided with a transmission ball (44), and the other end is an inclined surface and extends to the locking assembly (5); the locking assembly (5) comprises a support block (51), the support block (51) is fixedly provided on the lower side of the first leg (6), a locking block (52) is slidably provided inside the support block (51), a second spring (53) is fixedly provided on the lower side of the locking block (52), one end of the second spring (53) is fixedly provided on one side of the locking block (52), and the other end is fixedly provided on the inner side wall of the support block (51), a rotating shaft (54) is rotatably provided in the middle of the locking block (52), and a sliding rod (43) is provided on one side of the rotating shaft (54).

2. The automatic leveling level tripod used in construction engineering as claimed in claim 1, characterized in that: An arc-shaped support rod (7) is swingably disposed on one side of the support block (51), and a retaining block (8) is disposed at the end of the arc-shaped support rod (7); one end of the arc-shaped support rod (7) is swingably disposed on one side of the support block (51), and the other end is swingably disposed on one side of the retaining block (8).

3. The automatic leveling level tripod used in construction engineering as claimed in claim 1, characterized in that: A second leg (9) is slidably arranged on the lower side of the first leg (6), and a rack is arranged on one side of the second leg (9).

4. The automatic leveling level tripod used in construction engineering as claimed in claim 1, characterized in that: An annular connecting groove (26) is provided at the lower part of the liquid containing groove (21).

5. The automatic leveling level tripod used in construction engineering as claimed in claim 1, characterized in that: The interior of the leveling float (22) is hollow, which is beneficial to automatic leveling.

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