CN108645391B - Liquid level sensing automatic leveling measuring instrument bracket and using method thereof - Google Patents
Liquid level sensing automatic leveling measuring instrument bracket and using method thereof Download PDFInfo
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- CN108645391B CN108645391B CN201810678076.8A CN201810678076A CN108645391B CN 108645391 B CN108645391 B CN 108645391B CN 201810678076 A CN201810678076 A CN 201810678076A CN 108645391 B CN108645391 B CN 108645391B
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- 239000007788 liquid Substances 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000006698 induction Effects 0.000 claims abstract description 43
- 238000003825 pressing Methods 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 claims description 28
- 238000006073 displacement reaction Methods 0.000 claims description 28
- 229910000831 Steel Inorganic materials 0.000 claims description 25
- 239000010959 steel Substances 0.000 claims description 25
- 239000007787 solid Substances 0.000 claims description 14
- 230000001012 protector Effects 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 230000001105 regulatory effect Effects 0.000 abstract description 4
- 230000002411 adverse Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000004904 shortening Methods 0.000 abstract description 2
- 230000007547 defect Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 210000004247 hand Anatomy 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 210000003813 thumb Anatomy 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
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Abstract
The invention discloses a liquid level induction automatic leveling measuring instrument bracket and a using method thereof, belonging to the technical field of engineering measurement. Before the device is used, the three support rods do not need to be respectively telescopic and regulated, the three support rods can be simply regulated to the operation height simultaneously by pressing one button, so that the upper instrument tray is kept in a rough horizontal state, and the liquid level sensing device on the upper instrument tray can automatically sense and level the upper instrument tray, thereby achieving the purpose of quickly, automatically and accurately leveling the measuring instrument; meanwhile, through sealing the U-shaped induction pipes to two different liquid levels, when the liquid levels have the height difference, an electric signal is generated, and no requirement is imposed on the specific value of the liquid level height difference, so that adverse effects on the horizontal adjustment precision of the device are avoided after repeated use for many times; the equipment has the advantages of simple operation process, time and energy saving of operators, shortening of construction period, simple manufacture and cost saving.
Description
Technical Field
The invention belongs to the technical field of engineering measurement, in particular to a liquid level induction automatic leveling measuring instrument bracket and a use thereof
The method is used.
Background
Engineering measurement is applied to the whole construction process, and currently, level gauge, theodolite, total station and the like are the most important in engineering measurement
Commonly used measuring instruments. These measuring instruments are usually installed on the tripod before use, and then are used for three purposes
The supporting rods are adjusted in a telescopic way, so that the instrument tray is roughly adjusted to be horizontal, and then three parts below the measuring instrument base are repeatedly adjusted
The base feet are screwed, so that the measuring instrument can achieve accurate horizontal adjustment. The traditional manual leveling method has more complex process
The observer is required to consume excessive operating time and effort.
To improve the leveling efficiency of the measuring instrument during installation, the patent application number 201420489510.5 is currently filed
It has improved correspondingly, it discloses a theodolite support which can automatically adjust the level, adopts a level sensor to sense the triangle
The levelness of the support is controlled by signals of a level sensor to control a relay and a servo motor to adjust three support rods of the triangular support
Thereby automatically adjusting the levelness of the tripod. The defects are that: firstly, although three supporting rods are regulated by adopting a motor
The height of the triangular bracket can automatically adjust the levelness, but the whole height of the triangular bracket can not meet any position within a certain vertical range
Expansion and contraction bring inconvenience to measurement personnel during observation; secondly, the horizontal sensor control device is fixed on the inner sides of the three support rods,
The whole bracket can not be folded freely like the traditional triangular bracket, has higher requirement on the ground flatness of the observation place and is inconvenient for workers
Carrying during the course measurement; thirdly, when the three support rods of the patent extend and retract freely in the inclined direction through the motor, the whole support rod is not only enabled
The seat generates vertical displacement and corresponding horizontal displacement, and the support is difficult to meet in actual horizontal adjustment
Overall stability. Patent application number CN201010169552.7 discloses an automatic leveling device and method, which are used for dynamically adjusting a carrying platform to be in a horizontal state by monitoring the horizontal offset condition of the carrying platform in real time and generating a corresponding driving control signal according to the inclination of the carrying platform. The defects are that: firstly, the carrying platform of the device has certain requirements on the loading form of the upper part of the carrying platform, and a measuring instrument for engineering measurement cannot meet the requirements; and the second is that the four hydraulic regulating pumps are equivalent to four
The support supports a horizontal carrying platform at the same time, is of a statically indeterminate structure, and when four hydraulic adjusting pumps can not be adjusted at the same time,
The object carrying platform surface is deformed, and the aim of leveling the object carrying platform cannot be achieved; thirdly, the horizontal detection module is through carrying objects
The horizontal offset of the platform is different, different electric signals are generated for adjustment, and the requirements on the horizontal offset and the precision of the detection carrying platform are the same
When the device is high, the device can have adverse effect on the horizontal adjustment precision after repeated use for a plurality of times.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides the liquid level sensing automatic leveling measuring instrument bracket and the use method thereof, and the three supporting rods do not need to be respectively subjected to telescopic adjustment before the use, and can be simply adjusted to the operation height by pressing one button, so that the upper instrument tray is kept in a rough horizontal state, and the liquid level sensing device on the upper instrument tray can automatically sense and level the upper instrument tray, thereby achieving the purpose of quickly, automatically and accurately leveling the measuring instrument; meanwhile, through sealing the U-shaped induction pipes to two different liquid levels, when the liquid levels have the height difference, an electric signal is generated, and no requirement is imposed on the specific value of the liquid level height difference, so that adverse effects on the horizontal adjustment precision of the device are avoided after repeated use for many times; the equipment has the advantages of simple operation process, time and energy saving of operators, shortening of construction period, simple manufacture and cost saving.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a liquid level induction automatic leveling measuring instrument bracket comprises an upper instrument tray, a lower instrument tray, an upper supporting rod and a lower supporting rod
The upper instrument tray is connected with the lower instrument tray, the lower instrument tray is connected with the upper part of the upper supporting rod, the lower part of the upper supporting rod is connected with the lower supporting rod, the upper supporting rod and the lower supporting rod jointly provide supporting force for the whole bracket, and the two side surfaces of the upper instrument tray are respectively fixed with a liquid level sensing device for converting liquid level balance buoyancy into an electric signal;
A power supply controller is fixed on the third side surface of the upper instrument tray and is used for providing power for the power device;
a power device is fixed on the side surface of the lower instrument tray and used for providing power for the whole bracket;
The lower instrument tray comprises a lower triangular tray, and a button ejector is arranged in the lower triangular tray;
The button ejector comprises a spring, a button and steel wires, the spring is connected with the button to provide elasticity for the device, the inner end of the button is connected with one end of three steel wires, when the button ejector is pressed, the three steel wires are linked, the purpose that the three steel wires shrink inwards simultaneously is achieved, the other end of the button ejector is connected with the upper end of the ejector triangle of the upper support rod, the ejector triangle cooperates with the ejector buttons of the upper support rod, when the button of the button ejector is pressed, the steel wires start to be in a contracted state, the ejector triangle is driven to move upwards, the ejector triangle is separated from the two ejector buttons at the lower end, the two ejector buttons start to eject inwards under the action force of the spring, when the button of the button ejector is released, the action steps are opposite, and finally the two ejector buttons eject two sides under the action force of the spring.
The ejection button of the upper support rod is matched with the reserved hole of the lower support rod.
Further, the liquid level sensing device comprises a sealed U-shaped sensing tube, a displacement transmission rod and an alternate circuit board;
Half of liquid is reserved in the sealed U-shaped induction tube and is used for inducing a horizontal plane;
The surface of the liquid at the two ends of the sealed U-shaped induction pipe is provided with buoys which float freely along with the upper and lower parts of the liquid level where the buoys are positioned;
The upper part of the buoy is fixed with a displacement transmission rod which is connected through an electric wire;
The upper part of the sealed U-shaped induction tube is provided with two alternating circuit boards which are vertically distributed left and right, each alternating circuit board is divided into an upper circuit contact board and a lower circuit contact board, the upper circuit contact board and the lower circuit contact board of the left alternating circuit board respectively form two closed circuit loops with the lower circuit contact board and the upper circuit contact board of the right alternating circuit board, the two closed circuit loops respectively control the motor to rotate in opposite directions, and the resistance of the four circuit contact boards is in direct proportion to the length of the circuit contact boards.
Further, the springs are fixed through a fixed bottom plate, and the fixed bottom plate is arranged at the middle position of the lower triangular tray;
Vertical positioning pins are distributed on two sides of the button and used for positioning the moving direction of the button;
the button is in a small cylinder shape, one end of the button is connected with the tail end of the spring, and the other end of the button protrudes out of the side surface of the lower triangular tray, so that the button ejector can be conveniently pressed;
The ejection button is cylindrical, the outer end part is hemispherical, the inner end part is beveled ellipse, two protruding parts are symmetrically distributed up and down near the inner end part, the protruding parts are connected with positioning fixing pieces through springs, the four positioning fixing pieces jointly play roles of positioning and ejection supporting points, and finally, the two ejection buttons can freely eject along the two button holes;
the lower end of the ejection triangle is in an inverted triangle shape, the upper end of the ejection triangle is a T-shaped positioning member, the upper end of the inverted triangle is connected with the positioning fixing pieces through two springs, the two positioning fixing pieces play a role in positioning the T-shaped positioning member at the same time, and finally the ejection triangle can freely bounce up and down along the two positioning fixing pieces.
Further, the liquid level sensing device is fixed at the middle position of the two side surfaces of the upper triangular tray;
the sealed U-shaped induction tube is a hollow U-shaped tube, and two ends of the sealed U-shaped induction tube are sealed by discs;
the middle part of the disc is provided with a preformed hole, and the preformed hole is sealed by an elastic rubber film;
the outer part of the displacement transmission rod is wrapped with a rubber sleeve, and the inner part of the displacement transmission rod is a thin steel conductive rod, so that the displacement transmission rod has stronger rigidity, and can not bend and deform when moving up and down under the action of buoyancy;
One end of the displacement transmission rod is a T-shaped joint, and the other end of the displacement transmission rod penetrates through a rubber membrane at a reserved hole of an end disc of the U-shaped induction tube and is fixed at the upper part of the buoy;
the electric wire is a common thin rubber electric wire which can be freely bent;
The electric wire passes through the sealed U-shaped induction tube from the lower end of the inner thin steel conducting rod of the left displacement transmission rod and is connected with the inner thin steel conducting rod of the right displacement transmission rod, and meanwhile, the waterproof requirement is met;
the sealed U-shaped induction pipes and the alternating circuit boards are fixed in the positioning shell protection box, and the positioning shell protection box is mainly used for fixing the positions of the sealed U-shaped induction pipes and the circuit boards and protecting the appearance of the sealed U-shaped induction pipes and the circuit boards, so that the damage of external force to internal components of the liquid level induction device is prevented.
Further, the upper instrument tray comprises an upper triangular tray and foot spirals, and the foot spirals are distributed on the lower sides of three corners of the upper triangular tray;
the foot screw is a cylinder with threads at the upper end and the lower end, and a circular gear disc is fixed in the middle;
the foot screw is connected with the upper triangular tray through the upper end screw thread, and the circular gear disc in the middle is used for mechanically adjusting the heights of the three corner ends of the upper triangular tray;
The upper triangular tray is triangular, and three corners are arc-shaped corner protectors;
A first reserved round hole is formed in the center of the upper triangular tray;
the middle lower parts of the three sides of the lower instrument tray are distributed with pin connecting grooves;
The pin connecting groove is rectangular, and a pin is preset in the middle of the pin connecting groove;
the shape of the lower triangular tray is the same as that of the upper triangular tray;
The three arc corner protectors of the lower triangular tray are distributed with circular thread grooves with the same size, and the three circular thread grooves are connected with the upper instrument tray through the threads at the lower ends of the foot screws;
A second reserved round hole is formed in the center of the lower triangular tray.
Further, the power device is fixed on the side surface of the lower triangular tray;
The power device comprises a motor and longitudinal gear cylindrical parts, the motor is vertically fixed on the side surface of the lower triangular tray and can convert electric signals into rotary power, and the upper part of each motor is provided with the longitudinal gear cylindrical parts;
longitudinal bar gears are distributed around the longitudinal gear cylindrical parts, and the gears of the longitudinal bar gears are meshed with the gears of the circular gear plates in the middle of the foot spirals.
Further, the power supply controller is connected with the liquid level sensing device and the power device;
the power supply controller comprises a battery box, a circuit board and a switch, and the circuit board controls one liquid level sensing device to start at a time.
Further, the upper support rod is connected with the pin connection groove of the lower instrument tray;
The upper support rod comprises an upper hollow support, button holes are reserved at two sides of the lower part of the upper hollow support and are used for installing ejection buttons, and an ejection triangle is arranged in the upper hollow support;
The upper end of the upper hollow bracket is provided with a pin connection convex part, and a pin hole is preset in the pin connection convex part;
the pin connecting convex piece is matched with the pin connecting groove of the lower instrument tray for use, and the upper hollow bracket rotates by taking the pin of the lower instrument tray as an axis;
the tangent plane of the pin connecting convex piece is in a semicircle shape;
the upper hollow bracket is in a strip rectangular shape and is hollow.
Further, the lower support rod comprises a lower hollow support, preformed holes are symmetrically distributed on two side surfaces of the lower hollow support at equal intervals, and a solid support tip is fixedly connected to the lower part of the lower hollow support, so that the lower support rod is convenient to fixedly contact with the ground;
The lower hollow bracket is in a strip rectangular shape, the inside of the lower hollow bracket is hollow, and the upper part of the lower hollow bracket is connected with the lower end of the upper support rod;
The solid support tip is solid inverted triangle shape, and its side middle part position level is fixed with the running-board, and the running-board is semicircle, and the convenient survey crew tramples solid support tip with the foot when using and fixes.
The application method of the liquid level sensing automatic leveling measuring instrument bracket comprises the following steps:
step one, erecting a measuring instrument bracket: pressing the button of the button ejector to lift the measuring instrument support to a specified height, and then
The supporting rods automatically slide down to the ground under the action of self gravity, the supporting rods are arranged on a measuring station, two supporting rods of a measuring instrument bracket are placed and opened, an upper instrument tray is initially adjusted to be horizontal, then a button is released, so that an ejection button of the upper supporting rod is ejected out to be kept in a locking state with a lower supporting rod, and the upper instrument tray is approximately horizontal by the opening and supporting of the measuring instrument bracket;
Step two, installing a measuring instrument: placing the measuring instrument on a measuring instrument bracket head, aligning the center of a measuring instrument base with the center of the measuring instrument bracket, and screwing a connecting screw to fix the measuring instrument on an upper instrument tray of the measuring instrument bracket;
Step three, automatically leveling the measuring instrument: the switch of the power supply controller is turned on, the motor on one side surface is controlled by the circuit board to rotate, the motor on the side surface is controlled by the electric signal which is converted by the liquid level difference induction of the corresponding liquid level sensing device, and when the liquid level difference is zero, the side surface reaches a horizontal state, and the motor on the other side surface is controlled to rotate; similarly, the motors on the side surfaces are controlled by the electric signals converted through the liquid level height difference induction of the corresponding liquid level induction devices, and when the two side surfaces reach the horizontal level at the same time, the upper instrument tray is finally adjusted to the horizontal plane state, so that the aim of automatically leveling the measuring instrument is fulfilled.
Advantageous effects
1. The three support rods can be simply adjusted to the operation height by pressing one button, and the operation of the measuring instrument support is more convenient.
2. The level sensing signal is converted into an electric signal through the liquid level sensing device, so that the purpose of automatically leveling the measuring instrument is achieved, the use is convenient, and manual leveling is not needed.
3. The bracket is simple to manufacture, low in cost and capable of being produced in batches, and provides an important step for realizing mechanical automatic leveling of the measuring instrument.
Drawings
FIG. 1 is an overall schematic of an embodiment of the present invention;
FIG. 2 is an overall plan view of the upper portion of a stand in accordance with one embodiment of the present invention;
FIG. 3 is a plan view of an upper instrument tray according to an embodiment of the present invention;
FIG. 4 is a schematic view of an upper instrument tray according to an embodiment of the present invention;
FIG. 5 is a plan view of a lower instrument tray according to an embodiment of the invention;
FIG. 6 is a schematic view of a lower instrument tray according to an embodiment of the invention
FIG. 7 is a schematic view of a button ejector according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of a power plant according to an embodiment of the present invention;
FIG. 9 is a schematic view of a liquid level sensing apparatus according to an embodiment of the present invention;
FIG. 10 is a schematic diagram of a power controller according to an embodiment of the invention;
FIG. 11 is a schematic view of an upper support bar structure according to an embodiment of the present invention;
FIG. 12 is a schematic view showing the structure of a lower support bar according to an embodiment of the present invention;
In the figure: the device comprises a 1-upper instrument tray, a 11-upper triangle tray, a 12-first reserved round hole, a 13-foot screw, a 2-lower instrument tray, a 21-lower triangle tray, a 22-second reserved round hole, a 23-button ejector, a 231-fixed bottom plate, a 232-spring, a 233-button, a 234-vertical locating pin, a 235-steel wire, a 24-pin connection groove, a 3-power device, a 31-motor, a 32-longitudinal gear cylinder, a 4-liquid level sensing device, a 41-sealed U-shaped sensing tube, a 42-buoy, a 43-displacement transmission rod, a 44-wire, a 45-alternating circuit board, a 46-locating shield box, a 5-power supply controller, a 51-battery box, a 52-circuit board, a 53-switch, a 6-upper supporting rod, a 61-upper hollow bracket, a 62-pin connection convex piece, a 63-locating fixing piece, a 64-ejecting button, a 65-ejecting triangle, a 7-lower supporting rod, a 71-lower hollow bracket, a 72-reserved hole, a 73-solid bracket point and a 74-foot pedal.
Detailed Description
The invention will be further described with reference to the drawings and examples.
The embodiment relates to a liquid level sensing automatic leveling measuring instrument bracket, as shown in fig. 1, which comprises an upper instrument tray 1, a lower instrument tray 2, a power device 3, a liquid level sensing device 4, a power supply controller 5, an upper supporting rod 6 and a lower supporting rod 7, wherein the upper instrument tray 1 is connected with the lower instrument tray 2 up and down, the power device 3 is fixed on the side surface of the lower instrument tray 2 to provide power for the whole device, the two liquid level sensing devices 4 are fixed on the two side surfaces of the upper instrument tray 1 and are used for converting liquid level balance buoyancy into electric signals, the power supply controller 5 is fixed on the third side surface of the upper instrument tray 1 and provides power for the power device 3, the upper part of the upper supporting rod 6 is connected with the lower instrument tray 2 through pins, and the upper supporting rod 6 is connected with the lower supporting rod 7 up and down to provide supporting force for the whole device together.
As shown in fig. 3 and 4, the upper instrument tray 1 is composed of an upper triangular tray 11, a first reserved circular hole 12 and a foot screw 13. The upper triangular tray 11 is triangular, three corners are arc-shaped corner protectors, three side surfaces are a side surface A, a side surface B and a side surface C respectively, and the size of the upper triangular tray 11 meets the matched use requirement of an upper measuring instrument. The first reserved round hole 12 is positioned at the central part of the upper triangular tray 11, and the size of the first reserved round hole meets the position matching use requirement of an upper measuring instrument. The foot spiral 13 is a cylinder with threads at the upper end and the lower end, the middle part is fixedly provided with three circular gear plates, the three circular gear plates are distributed at the lower sides of three arc-shaped angle bead of the upper triangular tray 11 and are connected with the upper triangular tray 11 through the threads at the upper end of the foot spiral, and the circular gear plates at the middle part are used for mechanically adjusting the heights of three angle ends of the upper triangular tray 11.
As shown in fig. 5 and 6, the lower instrument tray 2 is composed of a lower triangular tray 21, a second reserved circular hole 22, a button ejector 23 and a pin connection groove 24. The shape of the lower triangular tray 21 is the same as that of the upper triangular tray 11, the three side surfaces are a side surface A, a side surface B and a side surface C respectively, circular thread grooves with the same size are distributed at the three arc corner protecting ends, the diameter size meets the requirement of being matched with the foot screw 13, and the three circular thread grooves are connected with the upper instrument tray 1 through threads at the lower end of the foot screw 13. The second reserved round hole 22 is positioned at the center of the lower triangular tray 21, and the size of the second reserved round hole meets the position matching use requirement of the upper measuring instrument. The pin connecting grooves 24 are rectangular grooves and distributed at the middle lower parts of the three sides of the lower instrument tray 2, and pins are preset in the middle of the pin connecting grooves 24 so as to be conveniently connected with the lower support rods 7.
As shown in fig. 5, the button ejector 23 is provided inside the lower triangular tray 21, specifically, preset at a middle position inside the a-side of the lower triangular tray 21. As shown in fig. 7, the button ejector 23 is composed of a fixed bottom plate 231, a spring 232, a button 233, a vertical positioning pin 234, and a steel wire 235. The fixed bottom plate 231 is arranged in the middle of the lower triangular tray 21 and is used for fixing an internal spring 232, the spring 232 is connected with a button 233 to provide elasticity for the device, the button 233 is in a small cylinder shape, one end of the button 233 is connected with the tail end of the internal spring 232, the other end of the button is protruded out of the side surface of the lower triangular tray 21 and is convenient to press the button ejector 23, vertical positioning pins 234 are distributed on two sides of the button 233 and are used for positioning the moving direction of the button 233, three steel wires 235 are all connected with the inner end of the button 233, and when the button ejector 23 is pressed, the three steel wires 235 are linked, so that the purpose that the three steel wires 235 shrink inwards simultaneously is achieved.
As shown in fig. 2 and 8, the power unit 3 is composed of three motors 31 and a longitudinal gear cylinder 32. The power device 3 is fixed on the side surface of the lower triangular tray 21, and is matched with the foot screw 13 for use. The motors 31 are vertically fixed on three sides of the lower triangular tray 21 respectively, and can convert electric signals into rotation power. The longitudinal gear cylindrical member 32 is arranged at the upper part of each motor 31, is cylindrical, and is provided with longitudinal bar gears distributed around, and the gear distribution condition of the longitudinal bar gears meets the requirement of being matched with the gears of the circular gear disc in the middle of the foot screw 13.
As shown in fig. 2 and 9, the two liquid level sensing devices 4 are fixed at the middle positions of the side a and the side B of the upper triangular tray 11, and each liquid level sensing device consists of a sealed U-shaped sensing tube 41, a buoy 42, a displacement transmission rod 43, an electric wire 44, a circuit board 45 and a positioning shell protection box 46.
The sealed U-shaped induction tube 41 is a hollow U-shaped tube, two ends of the sealed U-shaped tube are sealed by a disc with a hole in the middle, a reserved hole in the middle of the disc is sealed by an elastic rubber film, and half of liquid is reserved in the sealed U-shaped induction tube 41 and used for inducing a horizontal plane. The two buoys 42 float on the liquid surfaces at the two ends of the sealed U-shaped induction pipe 41 respectively, and can freely float up and down along with the liquid level. The two displacement transmission rods 43 are provided, one end of each displacement transmission rod is a T-shaped joint, the other end of each displacement transmission rod penetrates through a rubber membrane at a reserved hole of an end disc of the U-shaped induction tube 41 and is fixed on the upper portion of the buoy 42, the outer portion of each displacement transmission rod is wrapped with a rubber sleeve, and the inner portion of each displacement transmission rod is a thin steel conductive rod, so that the displacement transmission rod has high rigidity and can not bend and deform when moving up and down under the action of buoyancy. The electric wire 44 is a common thin rubber electric wire which can be freely bent, penetrates through the sealed U-shaped induction tube 41 from the lower end of the thin steel conducting rod in the left transmission rod 43, is connected with the thin steel conducting rod in the right transmission rod 43, and meets the waterproof requirement. The circuit board 45 is located directly over the sealed U-shaped induction tube 41, two circuit boards are vertically distributed left and right, each circuit board is divided into an upper circuit contact board and a lower circuit contact board, the circuit contact board at the lower end of the left circuit board and the circuit contact board at the upper end of the right circuit board form a closed circuit loop, the circuit contact board at the upper end of the left circuit board and the circuit contact board at the lower end of the right circuit board form a closed circuit loop, one closed circuit loop can meet the requirement that the motor rotates in a specified direction, the other closed circuit loop can meet the requirement that the motor rotates in the opposite direction, and the resistance of the four circuit contact boards is in direct proportion to the length of the circuit contact boards. The positioning shell-protecting box 46 is in a size which meets the requirement of matching the sealing U-shaped induction tube 41 and the circuit board 45, is mainly used for fixing the positions of the sealing U-shaped induction tube 41 and the circuit board 45, plays a role in protecting the appearance of the positioning shell-protecting box and prevents the damage of external force to the internal components of the liquid level induction device 4.
As shown in fig. 2 and 10, the power supply controller 5 is composed of a battery case 51, a circuit board 52, and a switch 53. The power supply controller 5 is connected with the liquid level sensing device 4 and the power device 3 through wires, and the power supply controller 5 is fixed at the middle position of the upper instrument tray 1. The battery case 51 houses a battery, which may be a rechargeable battery or an alkaline battery, preferably a rechargeable battery, of a type that meets the rated voltage of the power unit 3. The circuit board 52 is used for controlling the liquid level sensing device 4 on the side A to be started, leveling the side A of the upper instrument tray 1 to be a horizontal plane, starting the liquid level sensing device 4 on the side B, and leveling the other corner point of the triangle to be the horizontal plane. The switch 53 has two gear positions, and is turned on when moving to the left and turned off when moving to the right.
As shown in fig. 11, the upper support bar 6 is composed of an upper hollow bracket 61, a pin connection boss 62, a positioning fixing piece 63, an ejection button 64, an ejection triangle 65, and a wire. The upper support rods 6 are respectively connected with the pin connection grooves 24 of the lower instrument tray 2. The upper hollow bracket 61 is in a rectangular shape, is hollow in the interior, is provided with button holes at two sides of the lower part, and the size of the upper hollow bracket 62 meets the use requirement matched with a measuring instrument. The pin connection convex part 62 is positioned at the upper end of the upper hollow bracket 61, the section is in a semicircular shape, pin holes are preset in the section, and the pin connection convex part is matched with the pin connection groove 24 of the lower instrument tray 2, so that the upper hollow bracket 61 can rotate around the pins of the lower instrument tray 2. Six positioning fixing pieces 63 are fixed inside the lower end of the upper hollow support 61, are specifically distributed inside the two button holes, and are symmetrically distributed in four directions up and down to play a role in positioning. And the two buttons are fixed at the middle positions of the upper parts of the two button holes and are distributed in a bilateral symmetry manner, so that the positioning function is also realized. The ejection buttons 64 are in a cylindrical shape, the outer side end parts are in a semicircular shape, the inner side end parts are in a beveled ellipse shape, two protruding parts are symmetrically distributed up and down near the inner side end parts, the protruding parts are connected with the positioning fixing pieces 63 through springs, the four positioning fixing pieces 63 play roles of positioning and ejecting supporting points together, and finally the two ejection buttons 64 can freely eject along the two button holes. The lower end of the ejection triangle 65 is in an inverted triangle shape, the upper end of the ejection triangle is a T-shaped positioning member, the upper end of the inverted triangle is fixedly connected with two positioning fixing pieces 63 at the middle position of the upper part of the button hole through two springs, the two positioning fixing pieces 63 play a role in positioning the T-shaped positioning member at the same time, and finally the ejection triangle 65 can freely eject upwards and downwards along the two positioning fixing pieces 63. The steel wire 235 is positioned in the upper supporting rod 6, the lower end of the steel wire 235 is connected with the T-shaped positioning component of the ejection triangle 65, and the upper end of the steel wire 235 is connected with the button ejector 23 of the lower instrument tray 2, so that when the button 233 of the button ejector 23 is pressed, the steel wire 235 starts to be in a contracted state, the ejection triangle 65 is driven to move upwards, the ejection triangle 65 is separated from the two ejection buttons 64 at the lower end, the two ejection buttons 64 start to eject into the interior under the action force of a spring, when the button of the button ejector 23 is released, the action steps are opposite, and finally, the two ejection buttons 64 eject out two sides under the action force of the spring.
As shown in fig. 12, the lower support rod 7 is composed of a lower hollow bracket 71, a preformed hole 72, a solid bracket tip 73, and a foot pedal 74. The lower hollow bracket 71 is in a rectangular shape, is hollow in the interior, and the upper part of the lower hollow bracket 71 is connected with the lower end of the upper supporting rod 6, and the size of the lower hollow bracket 71 meets the requirement of being matched with the upper hollow bracket 61. The preformed holes 72 are symmetrically distributed on two sides of the lower hollow bracket 71 at equal intervals. The preformed hole 72 is sized to fit the ejector button 64 of the upper support bar 6. The solid support point 73 is fixedly connected with the lower part of the lower hollow support 71 and is in a solid inverted triangle shape, so that the lower support rod 7 is conveniently and fixedly contacted with the ground. The foot pedal 74 is semicircular and horizontally fixed at the middle position of the triangular side surface of the solid frame tip 73, so that a measurer can conveniently trample and fix the solid frame tip 73 by feet during use.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
SomeengineeringhasBM-AandBM-Bastwolevelingpoints,andthelevelgaugeisrequiredtomeasuretheheightdifferencebetweenA,Bpoints.
The specific steps used in connection with the process shown in FIGS. 1-12 are as follows:
Step one, erecting a measuring instrument bracket: the two sides of the upper instrument tray 1 are held by two hands, the small cylindrical buttons 233 of the button ejectors 23 are pressed by the thumb of the right hand, the measuring instrument support is lifted to a designated height by force, the lower supporting rod 7 automatically slides down to the ground under the action of self gravity, the lower supporting rod 7 is arranged on a measuring station, the two supporting rods of the measuring instrument support are placed and opened by the right hand and one foot, the upper instrument tray 1 is slightly adjusted to be horizontal by naked eyes, then the buttons 233 at the thumb of the right hand are released, the ejection buttons 64 of the upper supporting rod 6 are ejected and kept in a locking state with the lower supporting rod 7, the measuring instrument support is unfolded and supported, and the upper instrument tray 1 is approximately horizontal.
Step two, installing a measuring instrument: the meter is taken out of the case (holding the meter holder with both hands; holding the meter holder with one hand; holding the base with one hand; taking the meter with one hand strictly forbidden) and placed on the meter holder head, and the center of the meter base is aligned substantially with the center of the meter holder, and the connecting screw is screwed, so that the meter is fixed on the upper meter tray 1 of the meter holder.
Step three, automatically leveling the measuring instrument: the switch 53 of the power supply controller 5 is turned on, the motor 31 on the side A is controlled by the circuit board 52 to rotate at the highest speed to reach the horizontal state, the motor 31 on the side B is controlled to rotate after the motor stops working, the motors 31 on the two sides A, B rotate in opposite directions, the motor 31 on the side A is specifically controlled by an electric signal which is converted by the induction of the liquid level difference of the liquid level sensing device 4 on the side A, and when the liquid level difference is zero, namely the side A reaches the horizontal state, the motor 31 on the side B starts to rotate; similarly, the motor 31 on the side B is specifically controlled by an electric signal converted by the liquid level difference induction of the liquid level induction device 4 on the side B, and when A, B quantity of sides reach the level at the same time, the upper instrument tray 1 is finally adjusted to the level state, so as to achieve the purpose of automatically leveling the measuring instrument.
And fourthly, after the operation is finished, measuring the elevation of the two points A, B, and calculating the elevation difference of the two points A, B.
It should be apparent to those skilled in the art that various modifications or variations can be made in the present invention without requiring any inventive effort by those skilled in the art based on the technical solutions of the present invention.
Claims (7)
1. The utility model provides a liquid level response automatic leveling measuring apparatu support, it includes instrument tray (1), lower instrument tray (2), goes up bracing piece (6) and lower bracing piece (7), goes up instrument tray (1) and is connected with lower instrument tray (2), and lower instrument tray (2) are connected with last bracing piece (6) upper portion, go up bracing piece (6) lower part and be connected with lower bracing piece (7), go up bracing piece (6) and lower bracing piece (7) and provide holding power for whole support jointly, its characterized in that: liquid level sensing devices (4) are respectively fixed on two side surfaces of the upper instrument tray (1) and are used for converting liquid level balance buoyancy into electric signals;
A power supply controller (5) is fixed on the third side surface of the upper instrument tray (1) and is used for providing power for the power device (3);
a power device (3) is fixed on the side surface of the lower instrument tray (2) and is used for providing power for the whole bracket;
The lower instrument tray (2) comprises a lower triangular tray (21), and a button ejector (23) is arranged in the lower triangular tray (21);
The button ejector (23) comprises a spring (232), a button (233) and steel wires (235), the spring (232) is connected with the button (233), the inner end of the button (233) is connected with one end of the three steel wires (235), the other end of the button is connected with the upper end of an ejection triangle (65) of the upper support rod (6), and the ejection triangle (65) and the ejection button (64) of the upper support rod (6) cooperate to operate;
The ejection button (64) of the upper support rod (6) is matched with the reserved hole (72) of the lower support rod (7);
the liquid level sensing device (4) comprises a sealed U-shaped sensing tube (41), a displacement transmission rod (43) and an alternating circuit board (45);
Half of liquid is reserved in the sealed U-shaped induction tube (41);
The liquid surfaces at two ends of the sealed U-shaped induction pipe (41) are provided with buoys (42), and the buoys (42) freely float up and down along with the liquid level where the buoys are positioned;
A displacement transmission rod (43) is fixed at the upper part of the buoy (42), and the displacement transmission rods (43) are connected through an electric wire (44);
An alternating circuit board (45) is arranged right above the sealed U-shaped induction tube (41), the two alternating circuit boards (45) are vertically distributed left and right, each alternating circuit board (45) is divided into an upper circuit contact board and a lower circuit contact board, the circuit contact boards at the upper end and the lower end of the left alternating circuit board (45) and the circuit contact boards at the lower end and the upper end of the right alternating circuit board (45) form two closed circuit loops respectively, the two closed circuit loops respectively control the motor (31) to rotate in opposite directions, and the resistance of the four circuit contact boards is in direct proportion to the length of the circuit contact boards;
the liquid level sensing device (4) is fixed at the middle positions of two side surfaces of the upper triangular tray (11);
The sealed U-shaped induction tube (41) is a hollow U-shaped tube, and two ends of the sealed U-shaped induction tube are sealed by discs;
The middle part of the disc is provided with a preformed hole, and the preformed hole is sealed by an elastic rubber film;
The outer part of the displacement transmission rod (43) is wrapped with a rubber sleeve, and the inner part of the displacement transmission rod is a thin steel conducting rod;
One end of the displacement transmission rod (43) is a T-shaped joint, and the other end of the displacement transmission rod penetrates through a rubber membrane at a reserved hole of an end disc of the sealing U-shaped induction tube (41) and is fixed at the upper part of the buoy (42);
the wire (44) is a freely bendable common thin rubber wire;
The electric wire (44) penetrates through the sealed U-shaped induction tube (41) from the lower end of the inner thin steel conductive rod of the left displacement transmission rod (43) and is connected with the inner thin steel conductive rod of the right displacement transmission rod (43);
the sealed U-shaped induction tube (41) and the alternating circuit board (45) are fixed in the positioning shell-protecting box (46);
the power supply controller (5) is connected with the liquid level sensing device (4) and the power device (3);
the power supply controller (5) comprises a battery box (51), a circuit board (52) and a switch (53), and the circuit board (52) controls one liquid level sensing device (4) to start at a time.
2. The level sensing auto-leveling meter bracket as set forth in claim 1 wherein: the springs (232) are fixed through a fixed bottom plate (231), and the fixed bottom plate (231) is arranged at the middle position of the lower triangular tray (21);
Vertical positioning pins (234) are distributed on two sides of the button (233);
the button (233) is in a small cylinder shape, one end of the button is connected with the tail end of the spring (232), and the other end of the button protrudes out of the side face of the lower triangular tray (21);
The ejection button (64) is in a cylindrical shape, the outer side end part is in a semicircular shape, the inner side end part is in a beveled ellipse shape, two protruding parts are symmetrically distributed up and down near the inner side end part, and the protruding parts are connected with the positioning fixing piece (63) through a spring;
The lower end of the ejection triangle (65) is in an inverted triangle shape, the upper end of the ejection triangle is a T-shaped positioning component, and the upper end of the ejection triangle is connected with the positioning fixing piece (63) through two springs.
3. The level sensing auto-leveling meter bracket as set forth in claim 1 wherein: the upper instrument tray (1) comprises an upper triangular tray (11) and foot spirals (13), wherein the foot spirals (13) are distributed on the lower sides of three corners of the upper triangular tray (11);
The foot screw (13) is a cylinder with threads at the upper end and the lower end, and a circular gear disc is fixed in the middle;
The foot screw (13) is connected with the upper triangular tray (11) through the upper end screw thread;
The upper triangular tray (11) is triangular, and three corners are arc-shaped corner protectors;
A first reserved round hole (12) is formed in the center of the upper triangular tray (11);
The middle lower parts of the three sides of the lower instrument tray (2) are distributed with pin connecting grooves (24);
the pin connecting groove (24) is rectangular, and a pin is arranged in the middle of the pin connecting groove;
The shape of the lower triangular tray (21) is the same as that of the upper triangular tray (11);
Circular thread grooves with the same size are distributed at the three arc-shaped corner protecting ends of the lower triangular tray (21), and the three circular thread grooves are connected with the upper instrument tray (1) through threads at the lower end of the foot screw (13);
a second reserved round hole (22) is formed in the center of the lower triangular tray (21).
4. The level sensing auto-leveling meter bracket as set forth in claim 1 wherein: the power device (3) is fixed on the side surface of the lower triangular tray (21);
The power device (3) comprises a motor (31) and longitudinal gear cylindrical parts (32), the motor (31) is vertically fixed on the side face of the lower triangular tray (21), and the upper part of each motor (31) is provided with a longitudinal gear cylindrical part (32);
Longitudinal bar gears are distributed around the longitudinal gear cylindrical parts (32), and the gears of the longitudinal bar gears are meshed with gears of circular gear plates in the middle of the foot spirals (13).
5. The level sensing auto-leveling meter bracket as set forth in claim 1 wherein: the upper supporting rod (6) is connected with a pin connection groove (24) of the lower instrument tray (2);
the upper support rod (6) comprises an upper hollow support (61), button holes are reserved at two sides of the lower part of the upper hollow support (61) and used for installing ejection buttons (64), and an ejection triangle (65) is arranged in the upper hollow support (61);
The upper end of the upper hollow bracket (61) is provided with a pin connection convex piece (62), and a pin hole is preset in the pin connection convex piece (62);
The pin connection convex piece (62) is matched with the pin connection groove (24) of the lower instrument tray (2) for use, and the upper hollow bracket (61) rotates by taking the pin of the lower instrument tray (2) as an axis;
The section of the pin connecting convex piece (62) is semicircular;
the upper hollow bracket (61) is in a strip rectangular shape and is hollow.
6. The level sensing auto-leveling meter bracket as set forth in claim 1 wherein: the lower support rod (7) comprises a lower hollow support (71), preformed holes (72) are symmetrically distributed on two side surfaces of the lower hollow support (71) at equal intervals, and a solid support tip (73) is fixedly connected to the lower part of the lower hollow support (71);
The lower hollow bracket (71) is in a strip rectangular shape, the inside of the lower hollow bracket is hollow, and the upper part of the lower hollow bracket is connected with the lower end of the upper supporting rod (6);
The solid frame tip (73) is in a solid inverted triangle shape, a pedal plate (74) is horizontally fixed at the middle position of the side surface of the solid frame tip, and the pedal plate (74) is semicircular.
7. The method of using a level sensing auto leveling meter bracket as defined in any one of claims 1-6, wherein: the method comprises the following steps:
Step one, erecting a measuring instrument bracket: pressing a button (233) of a button ejector (23), lifting a measuring instrument support to a specified height, automatically sliding a lower support rod (7) down to the ground under the action of self gravity, placing the lower support rod on a measuring station, placing and opening two support rods of the measuring instrument support, initially adjusting the level of an upper instrument tray (1), then loosening the button (233), ejecting an ejection button (64) of the upper support rod (6) to be in a locking state with the lower support rod (7), and expanding and supporting the lower support rod by using the measuring instrument support to enable the upper instrument tray (1) to be in the level;
step two, installing a measuring instrument: placing the measuring instrument on a measuring instrument bracket head, aligning the center of a measuring instrument base with the center of the measuring instrument bracket, and screwing a connecting screw to fix the measuring instrument on an upper instrument tray (1) of the measuring instrument bracket;
Step three, automatically leveling the measuring instrument: the switch (53) of the power supply controller (5) is turned on, the motor (31) of one side power device (3) is controlled to rotate through the circuit board (52), the motor (31) on the side is controlled through the electric signal which is converted by the liquid level difference induction of the corresponding liquid level induction device (4), and when the liquid level difference is zero, the side reaches a horizontal state and starts to control the motor (31) of the other side power device (3) to rotate; similarly, the motors (31) on the side surfaces are controlled by the electric signals which are converted through the liquid level height difference induction of the corresponding liquid level induction devices (4), and when the two side surfaces reach the horizontal level at the same time, the upper instrument tray (1) is finally adjusted to the horizontal level state, so that the purpose of automatically leveling the measuring instrument is achieved.
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| CN110514866B (en) * | 2019-08-20 | 2020-10-02 | 东南大学 | Assembled anemograph support capable of automatically correcting |
| CN116448058B (en) * | 2023-04-23 | 2024-01-02 | 太湖流域管理局苏州管理局 | Automatic leveling device and leveling method for leveling rod |
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| TWM374560U (en) * | 2009-10-06 | 2010-02-21 | Yu-Feng Lin | Tilted bridge warning device |
| CN203688577U (en) * | 2013-12-25 | 2014-07-02 | 长安大学 | Pitot tube flow velocity measuring device capable of removing bubbles |
| CN104934260A (en) * | 2015-06-26 | 2015-09-23 | 中国石油集团西部钻探工程有限公司 | Three-protection liquid level-tracking floating switch |
| CN205384025U (en) * | 2016-03-11 | 2016-07-13 | 张忠良 | Gravity type engineering survey centering leveling tripod |
| CN205861044U (en) * | 2016-04-07 | 2017-01-04 | 周悦 | Terrace statoscope |
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