阅读说明：本技术 一种浮筒液位计 (Float liquid level meter ) 是由 赵龙龙 于 2021-08-27 设计创作，主要内容包括：本发明涉及仪器仪表技术领域,且公开了一种浮筒液位计,壳体底部内腔的中部固定安装有平衡块,导杆的外圈活动套接有浮筒,浮筒顶面的中部固定安装有伸入到调节腔内部的吊杆,吊杆的顶部外圈活动套接有套杆,套杆的顶部固定连接有磁性导电块,滑槽内部活动套接有滑块,液压孔的中部活动套接有活塞,活动槽的内部活动套接有导电板,平衡块内部位于液压孔中部的正面和背面对称固定安装有导电芯,调节腔的顶部内圈固定安装有电阻块,通过在壳体内部设置平衡块并且在其顶部设置导杆套接浮筒,在顶部通过电阻块调节电阻和吊杆套杆连接浮筒有效地提高了浮筒液位计的检测精度,方便使用故障率低。(The invention relates to the technical field of instruments and meters, and discloses a float level meter, wherein a balance block is fixedly arranged in the middle of an inner cavity at the bottom of a shell, a float is movably sleeved on the outer ring of a guide rod, a suspender extending into an adjusting cavity is fixedly arranged in the middle of the top surface of the float, a loop rod is movably sleeved on the outer ring at the top of the suspender, a magnetic conductive block is fixedly connected with the top of the loop rod, a slide block is movably sleeved inside a chute, a piston is movably sleeved at the middle of a hydraulic hole, a conductive plate is movably sleeved inside a movable groove, conductive cores are symmetrically and fixedly arranged on the front and the back of the middle of the hydraulic hole inside the balance block, a resistance block is fixedly arranged on the inner ring at the top of the adjusting cavity, the balance block is arranged inside the shell, the guide rod is sleeved with the float, the resistance block is connected with the loop rod at the top of the float level meter through a resistance block adjusting resistor and the loop rod, so that the detection precision of the float level meter is effectively improved, the use is convenient and the failure rate is low.)

1. A float level gauge comprising a housing (1), characterized in that: the top of one side of the shell (1) is provided with an upper connector (101), the bottom of one side of the shell (1) is provided with a lower connector (102), the bottom of the shell (1) is provided with a sewage outlet (103), the top of the inner cavity of the shell (1) is provided with an adjusting cavity (104), one side of the top of the shell (1) is fixedly provided with a potential meter (5), the middle of the inner cavity of the bottom of the shell (1) is fixedly provided with a balance block (2), the middle of the top of the balance block (2) is fixedly provided with a guide rod (3), the outer ring of the guide rod (3) is movably sleeved with a floating barrel (4), the inner ring of the floating barrel (4) is movably provided with a roller (401), the middle of the top surface of the floating barrel (4) is fixedly provided with a hanging rod (6) extending into the adjusting cavity (104), and the top outer ring of the hanging rod (6) is movably sleeved with a sleeve rod (7), the top fixedly connected with magnetism conducting block (8) of loop bar (7), the roof fixed mounting who adjusts chamber (104) has magnet (9) parallel with magnetism conducting block (8), spout (201) have been seted up to the bilateral symmetry of balancing piece (2), hydraulic pressure hole (202) have been seted up to balancing piece (2) middle part between being located spout (201), slider (10) have been cup jointed in spout (201) inside activity, fixed mounting has sealed bellows (11) between slider (10) and spout (201) opening, the inboard fixedly connected with one end of slider (10) cup joints hydraulic stem (12) in hydraulic pressure hole (202), piston (13) have been cup jointed in the middle part activity of hydraulic pressure hole (202).

2. A float level gauge as claimed in claim 1, wherein: a U-shaped groove (203) is arranged at the bottom of the hydraulic hole (202) in the balance block (2), a pressure block (14) is movably sleeved in the U-shaped groove (203), a return spring (15) is fixedly arranged between the bottom of the pressure block (14) and the bottom wall of the U-shaped groove (203), the front and the back of the piston (13) are symmetrically provided with a movable groove (1301), the inner part of the movable groove (1301) is movably sleeved with a conductive plate (18), a supporting spring (19) is fixedly arranged between the conductive plate (18) and the inner wall of the movable groove (1301), the front and the back of the balance block (2) positioned in the middle of the hydraulic hole (202) are symmetrically and fixedly provided with conductive cores (20), a resistance block (17) is fixedly arranged on the inner ring at the top of the adjusting cavity (104), and an elastic corrugated pipe (16) is fixedly connected between the end surface of one end of the suspender (6) positioned in the loop bar (7) and the top wall of the loop bar (7).

3. A float level gauge as claimed in claim 2, wherein: the top and the hydraulic pressure hole (202) intercommunication of U type groove (203) and hydraulic pressure hole (202) are at intercommunication department fixed mounting have the retaining ring, the outside middle part fixed mounting of current-conducting plate (18) has bellied conductive head and is electrically conductive when contacting with electrically conductive core (20), connect through the wire between current-conducting plate (18).

4. A float level gauge as claimed in claim 2, wherein: the extension ends of the two conductive cores (20) are respectively connected with the resistance block (17), the magnetic conductive block (8), the potential meter (5) and the power supply through leads to form a series circuit, the side edge of the magnetic conductive block (8) is in contact with the resistance block (17) through a contact, and compressed gas is filled in the elastic corrugated pipe (16).

Technical Field

The invention relates to the technical field of instruments and meters, in particular to a buoy liquid level meter.

Background

The float level meter is a common instrument used for measuring the level of liquid in a pressure container and consists of four basic parts: the flotation pontoon, a spring, magnet steel room and indicator, the principle is when the liquid level changes, the flotation pontoon receives the corresponding change of buoyancy, balanced state is broken, thereby arouse elasticity change promptly the flexible of spring, in order to reach new balance, thereby the flexible magnet steel that makes its and rigid connection of spring produces the displacement and then demonstrates in by the indicator can reachs the inside liquid level height of container, the measurement accuracy of flotation pontoon level gauge is high, the range of application is wide, but it still has certain weak point:

1. when the liquid level is detected, the buoy is directly hung in the middle of the shell, and the shell is connected with the detected solution container, so that the buoy shakes when liquid to be detected flows back and forth between the liquid level meter and the container, different expansion amounts are generated on the spring, the liquid level value obtained through the indicator is in continuous change, the detected liquid level is not known to be accurate, meanwhile, the buoy shakes to incline, and the value obtained by the indicator cannot be accurate in height through buoyancy change caused by liquid level height change, and further large deviation occurs;

2. what adopt when utilizing the flotation pontoon level gauge to detect is the change of the spring force that buoyancy change brought, and the flotation pontoon level gauge of itself is the instrument that measurement accuracy is high, consequently the spring all remains throughout to hang a flotation pontoon when using or not using, the spring will lead to its zero point position to be elongated by a power stretching time for a specified time, and then lead to the measuring liquid level height inaccurate, the spring top transmits torsion through the lever simultaneously and then demonstrates spring deformation length in the indicator, the complicated occupation space of this kind of structure is big, and need often calibrate, its fault rate is high simultaneously, need often clear up the torsion tube.

Disclosure of Invention

Aiming at the defects of the background technology, the invention provides the float level meter which has the advantages of high measurement precision and long service life and solves the problems in the background technology.

The invention provides the following technical scheme: a buoy liquid level meter comprises a shell, wherein an upper connector is arranged at the top of one side of the shell, a lower connector is arranged at the bottom of one side of the shell, a sewage discharge outlet is arranged at the bottom of the shell, an adjusting cavity is arranged at the top of an inner cavity of the shell, a potential meter is fixedly arranged at one side of the top of the shell, a balance block is fixedly arranged in the middle of the inner cavity of the bottom of the shell, a guide rod is fixedly arranged in the middle of the top of the balance block, a buoy is movably sleeved on the outer ring of the guide rod, a roller is movably arranged on the inner ring of the buoy, a hanging rod extending into the adjusting cavity is fixedly arranged in the middle of the top surface of the buoy, a sleeve rod is movably sleeved on the outer ring of the top of the hanging rod, a magnetic conductive block is fixedly connected at the top of the sleeve rod, a magnet parallel to the magnetic conductive block is fixedly arranged on the top wall of the adjusting cavity, and sliding grooves are symmetrically arranged at two sides of the balance block, the balance block is characterized in that a hydraulic hole is formed in the middle of the balance block and located between the sliding grooves, a sliding block is movably sleeved inside the sliding grooves, a sealing corrugated pipe is fixedly installed between the sliding block and the opening of the sliding grooves, one end of the inner side of the sliding block is fixedly connected with a hydraulic rod, the hydraulic rod is sleeved in the hydraulic hole, and a piston is movably sleeved in the middle of the hydraulic hole.

Preferably, the inside hydraulic pressure hole bottom that is located of balancing piece has seted up U type groove, the inside activity in U type groove has cup jointed the pressure piece, fixed mounting has reset spring between pressure piece bottom and the U type inslot wall, the activity groove has been seted up to the front and the back symmetry of piston, the current conducting plate has been cup jointed in the inside activity in activity groove, fixed mounting has supporting spring between current conducting plate and the activity inslot wall, the inside front and the back symmetrical fixed mounting that are located the hydraulic pressure hole middle part of balancing piece have electrically conductive core, the top inner circle fixed mounting who adjusts the chamber has the resistance piece, the jib is located fixedly connected with elastic bellows between terminal surface and the loop bar roof of the inside one end of loop bar.

Preferably, the top in U type groove and hydraulic pressure hole intercommunication and hydraulic pressure hole have the retaining ring in intercommunication department fixed mounting, the outside middle part fixed mounting of current conducting plate has bellied conductive head and is electrically conductive when contacting with the conductive core, connect through the wire between the current conducting plate.

Preferably, the extending ends of the two conductive cores are respectively connected with the resistance block, the magnetic conductive block, the potential meter and the power supply through leads to form a series circuit, the side edge of the magnetic conductive block is contacted with the resistance block through a contact, and the elastic corrugated pipe is filled with compressed gas.

The invention has the following beneficial effects:

1. through set up the balancing piece inside the casing and set up the guide arm at its top and cup joint the flotation pontoon, compare in prior art, utilize the inside slider of balancing piece to receive hydraulic pressure inside slip and drive hydraulic pressure and change, and only can be after the liquid level is stable at the piston leveling with in the hydraulic pressure hole to the centre position, can show the reading on the potential table through current conducting plate and conductive core switch-on circuit this moment, just so guaranteed can't detect when the inside liquid level of casing is unstable, the condition of misreading has been avoided appearing, can also guarantee the stability that the flotation pontoon is in vertical state under the guide effect of guide arm and gyro wheel simultaneously, more do benefit to the accuracy of follow-up buoyancy calculation liquid level that utilizes.

2. Through set up control switch circuit on the balancing piece inside the casing, and resistance block regulation resistance is passed through at the top, use the jib loop bar in addition to carry and draw the flotation pontoon, compare in prior art, utilize magnet attraction loop bar subassembly, and hang the flotation pontoon at its bottom through atmospheric pressure, the inaccurate problem that causes because the spring uses a period of deformation has been avoided effectively like this, drive magnetism conducting block through the loop bar simultaneously and slide and carry out resistance regulation can be direct reflect the tensile change in jib bottom with the electric current, the effect of buoyancy can be expressed out through the ampere meter promptly, the expression buoyancy that can be effectively quick changes like this and converts out liquid level, little quick simple structure of reaction than traditional lever transmission error, the fault rate is low, more do benefit to the use in the reality.

Drawings

FIG. 1 is an overall front and half sectional view of the structure of the present invention;

FIG. 2 is a side, semi-sectional view of the present invention in its entirety;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 4 is an enlarged view of FIG. 1 at B;

FIG. 5 is an enlarged view of FIG. 1 at C;

fig. 6 is an enlarged view of fig. 3 at D.

In the figure: 1. a housing; 101. an upper connecting port; 102. a lower connector; 103. a sewage draining outlet; 104. an adjustment chamber; 2. a counterbalance; 201. a chute; 202. a hydraulic bore; 203. a U-shaped groove; 3. a guide bar; 4. a float bowl; 401. a roller; 5. a potential table; 6. a boom; 7. a loop bar; 8. a magnetic conductive block; 9. a magnet; 10. a slider; 11. sealing the corrugated pipe; 12. a hydraulic lever; 13. a piston; 1301. a movable groove; 14. a pressure block; 15. a return spring; 16. an elastic bellows; 17. a resistance block; 18. a conductive plate; 19. a support spring; 20. a conductive core.

Detailed Description

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

Referring to the attached drawings 1-4, a float level meter comprises a shell 1, wherein the top of one side of the shell 1 is provided with an upper connector 101, the bottom of one side of the shell 1 is provided with a lower connector 102, the bottom of the shell 1 is provided with a sewage discharge outlet 103, the top of the inner cavity of the shell 1 is provided with an adjusting cavity 104, one side of the top of the shell 1 is fixedly provided with a potential meter 5, the middle of the inner cavity of the bottom of the shell 1 is fixedly provided with a balance block 2, the middle of the top of the balance block 2 is fixedly provided with a guide rod 3, the outer ring of the guide rod 3 is movably sleeved with a float 4, the inner ring of the float 4 is movably provided with a roller 401, the middle of the top surface of the float 4 is fixedly provided with a suspender 6 extending into the adjusting cavity 104, the outer ring of the top of the suspender 6 is movably sleeved with a loop bar 7, the top of the loop bar 7 is fixedly connected with a magnetic conductive block 8, and the top wall of the adjusting cavity 104 is fixedly provided with a magnet 9 parallel to the magnetic conductive block 8, the sliding grooves 201 are symmetrically formed in two sides of the balance block 2, a hydraulic hole 202 is formed in the middle of the balance block 2 and located between the sliding grooves 201, a sliding block 10 is movably sleeved in the sliding groove 201, a sealing corrugated pipe 11 is fixedly installed between the sliding block 10 and an opening of the sliding groove 201, a hydraulic rod 12 with one end sleeved in the hydraulic hole 202 is fixedly connected to the inner side of the sliding block 10, a piston 13 is movably sleeved in the middle of the hydraulic hole 202, the piston 13 slides towards two sides along the inside of the hydraulic hole 202 under the action of hydraulic force, connection and disconnection between the conductive plate 18 and the conductive core 20 are controlled through secondary sliding, a U-shaped groove 203 is formed in the bottom of the hydraulic hole 202 in the balance block 2, a pressure block 14 is movably sleeved in the U-shaped groove 203, a reset spring 15 is fixedly installed between the bottom of the pressure block 14 and the bottom wall of the U-shaped groove 203, a movable groove 1301 is symmetrically formed in the front face and the back of the piston 13, and the conductive plate 18 is movably sleeved in the movable groove 1301, a supporting spring 19 is fixedly arranged between the conductive plate 18 and the inner wall of the movable groove 1301, conductive cores 20 are symmetrically and fixedly arranged on the front and the back of the balance block 2, which are positioned in the middle of the hydraulic hole 202, a resistor block 17 is fixedly arranged on the inner ring at the top of the adjusting cavity 104, an elastic corrugated pipe 16 is fixedly connected between the end surface of the boom 6, which is positioned at one end inside the loop bar 7, and the top wall of the loop bar 7, and the elastic corrugated pipe 16 not only has a sealing effect, but also provides a force to restrict the boom 6 from falling off downwards.

Referring to fig. 5-6, the top of the U-shaped groove 203 is connected to the hydraulic hole 202, and a retainer ring is fixedly installed at the connection position of the hydraulic hole 202, and is used to limit the sliding of the piston 13, ensure that the piston can be adjusted in a small range, but to ensure the subsequent electrical connection, so the sliding range is small, and the sealing performance inside is ensured, the middle part of the outer side of the conductive plate 18 is fixedly provided with a convex conductive head and is conductive when being contacted with the conductive core 20, the conductive plates 18 are connected through a lead, the piston 13 will drive the conductive plate 18 to move in the same way, and the protrusion of the conductive plate 18 will be pressed against the conductive core 20 to conduct the circuit only when the piston 13 is located at the center of the hydraulic hole 202, so the piston 13 can be used to function as a circuit switch, the movement of the piston 13 is controlled by the hydraulic pressure inside the housing 1, so that the stable hydraulic pressure of the piston 13 when the liquid level is stable can be used for controlling the piston 13 to switch on the circuit of the conductive core 20.

Referring to the attached drawings 1-3, the extending ends of two conductive cores 20 respectively form a series circuit through wires and a resistance block 17, a magnetic conductive block 8, a potential meter 5 and a power supply, the side edge of the magnetic conductive block 8 is contacted with the resistance block 17 through a contact, tension change transmitted to a suspender 6 after hydraulic stabilization enters a control loop bar 7 and the magnetic conductive block 8 to move upwards in the formed circuit to realize resistance change, further the change condition of current brought by resistance in the circuit reflects the change quantity of the tension of the suspender 6, namely, the buoyancy of the buoy 4 is obtained through conversion, compressed gas is filled in the elastic corrugated pipe 16, the elastic corrugated pipe 16 plays a role as a spring between the suspender 6 and the loop bar 7, therefore, the gas pressure change therein is used for replacing the spring, and the influence caused by deformation can be effectively avoided, the service life and the precision are improved.

The working principle is that the liquid level meter and a container to be measured are installed well, liquid in the container enters the shell 1 through the lower connecting port 102, then the liquid in the slide block 10 slides inwards along the sliding groove 201 as the liquid level rises, the slide block 10 drives the hydraulic rod 12 to slide towards the inside of the hydraulic hole 202 when sliding, at the moment, the hydraulic pressure in the hydraulic hole 202 is pressed towards the U-shaped groove 203 and presses the pressure block 14 downwards, when the liquid level in the liquid level meter is unstable, the hydraulic pressures on the two slide blocks 10 are different, therefore, the piston 13 in the hydraulic hole 202 can deviate towards the side with smaller hydraulic pressure, at the moment, the piston 13 drives the conductive plate 18 to be disconnected with the conductive core 20, the current in the circuit is lost, therefore, no display is arranged on the potentiometer 5, when the liquid level drives the left-right shaking, the buoy 4 is ensured to be in a vertical state under the limitation of the roller 401, and then when the liquid level rises to a certain height, the liquid level is also stable, the piston 13 in the hydraulic hole 202 slides to the middle position due to the stress balance, at the moment, the conductive head protruding on the conductive plate 18 is just in contact with the conductive core 20 in a pressing manner, at the moment, the circuit is connected, the numerical value is displayed on the potential meter 5, meanwhile, the lifting rod 6 is gradually reduced by the pulling force of the floating cylinder 4 in the process of liquid level rising change, at the moment, the sleeve rod 7 is driven to move upwards under the dual effects of air pressure and the magnet 9, and the resistance block 17 slides along the surface in the process of moving upwards and adjusts the resistance change in the circuit, so that the numerical value read out by the potential meter 5 subsequently is obtained according to different buoyancy conditions, and the buoyancy change can be obtained through current conversion so as to calculate the height of the liquid level to finish liquid level detection.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.