CN215339817U

CN215339817U - Measuring device with water loss protection function

Info

Publication number: CN215339817U
Application number: CN202121527003.2U
Authority: CN
Inventors: 陈骋
Original assignee: Suzhou Cps Technology Co ltd
Current assignee: Suzhou Cps Technology Co ltd
Priority date: 2021-07-06
Filing date: 2021-07-06
Publication date: 2021-12-28
Anticipated expiration: 2031-07-06

Abstract

The utility model discloses a measuring device with a water loss protection function, which comprises a protective sleeve, a measuring probe and a water loss protection mechanism, wherein the lower end of the protective sleeve is provided with a liquid inlet; the water loss protection mechanism comprises a supporting piece, a connecting piece, a sealing piece and a weight piece, the density of the weight piece is smaller than that of the solution, the supporting piece is arranged on the outer side wall of the protective sleeve, the connecting piece is pivoted with the supporting piece through a pivoting shaft, one end of the connecting piece is connected with the sealing piece, the opposite end of the connecting piece is connected with the weight piece, the weight piece drives the sealing piece to not block the liquid inlet when being in the solution, and drives the sealing piece to block the liquid inlet when being out of the solution. The utility model can avoid the damage of the measuring probe caused by water loss and prolong the service life of the measuring probe.

Description

Measuring device with water loss protection function

Technical Field

The utility model relates to the technical field of measurement, in particular to a measuring device with a water loss protection function.

Background

With the continuous development of industry, the variety and the amount of industrial wastewater are continuously increased, and the pollution of the industrial wastewater to water bodies is more and more serious, so that the health and the development of human beings are threatened. With the continuous improvement of environmental protection in China, industrial wastewater can be discharged to the outside after being treated and reaching standards. At present, the method can be applied to various online instruments in the industrial wastewater treatment process so as to carry out real-time monitoring and control on the industrial wastewater and assist the operation of a wastewater treatment system. In the above online meter, the measurement probe of the online meter is installed in various ways, such as pipe installation, flow cup installation, top submerged installation, side wall installation, etc., and especially, the top submerged installation is the most common, and here, the top submerged installation generally refers to immersing the measurement probe in the liquid to be measured to realize the monitoring of the liquid to be measured.

After the on-line meter is installed, how to correctly use the measuring probe and regularly and reasonably maintain the measuring probe so as to avoid the damage of the probe is a problem which must be faced by a user. If the measuring probe is damaged and is not replaced timely, the fluctuation of the wastewater treatment system is easily caused, the effluent water does not reach the standard if the effluent water is light, and the wastewater treatment system is broken down if the effluent water is heavy, so that immeasurable serious results are caused. In the process of using the online instrument for a long time, the long-time dehydration of the measuring probe is a common cause of damage of the measuring probe. In the currently used online instrument, a measuring probe has no water loss protection function, a manufacturer only notes in a maintenance manual, and the probe cannot lose water for a long time and cannot be placed in an air-dry manner. However, in the actual use process, when the liquid level in the tank drops or the tank body is emptied, the measuring probe is exposed to the air, so that the measuring probe is easily damaged due to water loss, and the service life is reduced.

In order to avoid damage of the measuring probe due to water loss, the conventional method is that an operator takes out the online instrument in time to manually protect the measuring probe, namely, the online instrument is taken out in time to be in a solution. However, in this way, on one hand, the workload of the operator is easily increased, and on the other hand, the manual operation is inevitable, neglect is avoided, improper operation may occur, new problems are caused, and the damage to the measurement probe is easily caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a measuring device with a water loss protection function, which can prevent a measuring probe from being damaged due to water loss and prolong the service life of the measuring probe.

In order to achieve the above object, the present invention provides a measuring apparatus with a water loss protection function, including:

the lower end of the protective sleeve is provided with a liquid inlet;

the measuring probe is arranged in the sheath tube and is close to the liquid inlet;

the protection mechanism of desiccation, the protection mechanism of desiccation includes support piece, connecting piece, seals the weight piece that piece and density are less than solution, support piece locates on the lateral wall of protecting pipe, the connecting piece with support piece passes through pin joint axle pin joint, just the one end of connecting piece is connected seal the piece, the looks remote connection the weight piece, the weight piece drives when being in solution seal the shutoff not of piece the inlet opening drives when being in solution seal the shutoff of piece the inlet.

Preferably, the distance from the sealing member to the pivot shaft is smaller than the distance from the weight member to the pivot shaft, and the sealing member and the weight member have the same weight and the same density.

Preferably, a sealing member for sealing is provided on the sealing member.

Preferably, the protective sleeve comprises a pipe body and a water storage pipe, one end of the water storage pipe is connected with the pipe body, the opposite end of the water storage pipe is provided with the liquid inlet, and the measuring probe is arranged in the water storage pipe.

Preferably, the water storage pipe is sleeved outside the pipe body and connected with the pipe body.

Preferably, the support member is provided on an outer side wall of the water storage pipe.

Preferably, the end of the water storage pipe connected with the pipe body is provided with a through hole for the measuring probe to pass through.

Preferably, the protective sleeve further comprises a fixed support, and the protective sleeve is movably connected with the fixed support.

Preferably, the fixing bracket is circular or square.

Preferably, the measuring device further comprises a junction box, wherein the junction box is arranged at the upper end of the protective sleeve and is electrically connected with the measuring probe.

The utility model has the beneficial effects that:

(1) according to the measuring device, the water loss protection mechanism is arranged, so that the measuring probe can be continuously kept in contact with the liquid to be measured, the measuring probe has a water loss protection function, on one hand, damage of the measuring probe due to water loss is avoided, the service life of the measuring device is prolonged, on the other hand, an operator does not need to frequently perform manual water loss protection on the measuring probe, damage of the measuring probe due to water loss caused by negligence or improper operation of the operator is avoided, the workload and the working difficulty of the operator are reduced, and the maintenance cost is saved.

(2) The measuring device has the advantages of integration, automation, standardization, simple manufacture, stable structure, flexible disassembly, strong applicability, maintenance avoidance, small and attractive appearance and good protection effect of the measuring probe, and is suitable for various online instrument probes with water loss protection requirements.

Drawings

FIG. 1 is a schematic diagram of a measuring device according to an embodiment of the present invention;

FIG. 2 is a schematic view of the measuring device in a measuring position;

FIG. 3 is a schematic structural diagram of a measurement device during water loss protection;

fig. 4 is a schematic structural diagram of the measuring device under water loss protection.

Reference numerals:

10. the device comprises a protective sleeve, 11, a liquid inlet, 12, a pipe body, 13, a water storage pipe, 20, a measuring probe, 30, a water loss protection mechanism, 31, a supporting piece, 32, a connecting piece, 33, a sealing piece, 34, a counterweight piece, 40, a junction box, 50, a fixing support, a and a pivot shaft.

Detailed Description

The technical solution of the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention.

The measuring device with the water loss protection function can avoid the damage of the measuring probe 20 caused by water loss, effectively prolong the service life of the measuring probe 20 and reduce the maintenance cost.

As shown in fig. 1, a measuring apparatus with water loss protection function according to an embodiment of the present invention includes a sheath 10, a measuring probe 20, and a water loss protection mechanism 30. The protecting sleeve 10 is a tubular member having an upper end and a lower end which are oppositely arranged, the lower end is an end portion immersed in liquid, and the lower end is provided with a liquid inlet 11 for liquid to enter the protecting sleeve 10. The measuring probe 20 is disposed inside the protecting pipe 10 and near the liquid inlet 11 of the protecting pipe 10, and the measuring probe 20 can contact with the solution in the protecting pipe 10 to measure relevant parameters of the solution, such as pH value and the like. The water loss protection mechanism 30 comprises a support member 31, a connecting member 32, a sealing member 33 and a weight member 34 with density smaller than that of the solution, wherein the support member 31 is fixed on the outer side wall of the sheath tube 10, the connecting member 32 is pivoted with the support member 31 through a pivot shaft a, the connecting member 32 can rotate relative to the support member 31, one end of the connecting member 32 is connected with the sealing member 33, the opposite end is connected with the weight member 34, the sealing member 33 is used for sealing the liquid inlet 11, and the weight member 34 is used for driving the sealing member 33 to seal the liquid inlet 11. When the weight member 34 is in the solution, the weight member 34 can drive the sealing member 33 not to block the liquid inlet 11, so that the measurement probe 20 can measure the parameter of the solution, and when the weight member 34 is outside the solution, the weight member 34 can drive the sealing member 33 to block the liquid inlet 11, so that a part of the solution is still stored in the sheath tube 10, and the measurement probe 20 can be prevented from being damaged due to water loss.

In this embodiment, the weight of the weight member 34 and the weight of the sealing member 33 are the same, both the weight member 34 and the sealing member 33 are made of materials with density smaller than that of the solution, and meanwhile, the distance from the weight member 34 to the pivot axis a is greater than the distance from the sealing member 33 to the pivot axis a, so that the sealing member 33 is driven to not block the liquid inlet 11 when the weight member 34 is in the solution, the sealing member 33 is driven to block the liquid inlet 11 when the weight member is out of the solution, and finally a part of the solution is still stored in the sheath tube 10, thereby preventing the measuring probe 20 from being damaged due to water loss.

According to the utility model, by arranging the water loss protection mechanism 30, the solution can be sealed in the protective sleeve 10 in one step before the measuring probe 20 is separated from the liquid level, so that the measuring probe 20 can still be contacted with the solution for a long time after being separated from the liquid level, the measuring probe 20 is prevented from being damaged due to water loss, and the service life of the measuring probe 20 is prolonged.

Further, a sealing member (not shown) is disposed on the sealing member 33, and the sealing member plays a role of sealing to prevent the solution stored in the sheath tube 10 from leaking, and the sealing member is a sealing ring or the like.

As shown in fig. 1, the sheath tube 10 is made of a split structure and preferably made of polypropylene, the sheath tube 10 includes a tube body 12 and a water storage tube 13, the upper end of the water storage tube 13 is connected to the lower end of the tube body 12, the lower end of the water storage tube 13 is provided with the liquid inlet 11, the measuring probe 20 is located in the water storage tube 13, and the support member 31 is located on the outer side wall of the water storage tube 13. In practice, liquid enters the storage pipe 13 through the liquid inlet 11. When the sealing member 33 seals the liquid inlet 11, a part of the solution can be stored in the water storage pipe 13, so that the measuring probe 20 can be always in contact with the solution, and the measuring probe 20 is prevented from being damaged due to water loss. By selecting environment-friendly corrosion-resistant materials, the service life of the measuring device is longer, and the water quality of the measuring solution is not affected. Of course, different materials can be selected according to the characteristics and requirements of the measured liquid, and different specifications are flexibly designed to adapt to different working conditions, deal with various water loss conditions and realize standardization.

Further, the water storage pipe 13 is sleeved outside the pipe body 12 and connected with the pipe body 12 in a threaded connection mode, and of course, in other embodiments, the pipe body 12 can be sleeved outside the water storage pipe 13 and can be connected in a plugging mode and the like, and selection can be performed according to actual requirements.

Further, the end of the water storage tube 13 connected to the tube body 12 is provided with a through hole (not shown) for passing the measuring probe 20, but in other embodiments, the end of the water storage tube 13 connected to the tube body 12 may be provided with an opening for passing the measuring probe 20.

As shown in fig. 1, the measuring apparatus further includes a junction box 40, the junction box 40 is disposed at the upper end of the sheath tube 10, and the junction box 40 is electrically connected to the measuring probe 20 through a cable. In practice, the junction box 40 is electrically connected to the transmitter, which can transmit the measurement probe 20 signal into the transmitter for further processing.

In this embodiment, the junction box 40 is connected to the sheath tube 10 by welding. Of course, in other embodiments, the terminal box 40 may be connected to the sheath tube 10 by other means, such as bolting.

As shown in fig. 1, the measuring apparatus further includes a fixing bracket 50, and the fixing bracket 50 is used to fix the sheathing tube 10. The protecting sleeve 10 and the fixing support 50 can be connected in a movable connection mode, so that the protecting sleeve 10 can move up and down relative to the fixing support 50 to adapt to solutions in different depths, and the movable connection mode is such as connection through a hoop. Of course, in other embodiments, the sheath tube 10 and the fixing bracket 50 may be connected by a fixed connection manner, such as plastic welding, etc. In practice, the fixed bracket 50 may be fixed to the top of the liquid pool, the sheathing tube 10 is connected to the fixed bracket 50, and the lower end is immersed in the solution.

In this embodiment, the fixing bracket 50 is rectangular or circular, and is preferably made of polypropylene.

The working principle of the measuring device with the water loss protection function according to the present invention will be described in detail with reference to fig. 1 to 4, taking the measured liquid as pure water as an example:

firstly, assembling a protective sleeve 10, a measuring probe 20 and a water loss protection mechanism 30 into a whole, welding a junction box 40 on the top of the protective sleeve 10, and electrically connecting the junction box 40 with the measuring probe 20 through a cable;

secondly, the fixed support 50 is fixed on the top of the open pond body in a bolt fixing mode, and the protective sleeve 10 and the fixed support 50 are fixed in a movable connection mode, so that the protective sleeve 10 can move up and down relative to the fixed support 50. While connecting the terminal block 40 to the transmitter via a cable.

Finally, the lower end of the sheathing tube 10 is immersed in water at a suitable position. As shown in fig. 2, since the sealing member 33 and the weight member 34 have the same weight and are each less dense than water, when the sealing member 33 and the weight member 34 are completely submerged, they both receive the same gravity and buoyancy, but the buoyancy is greater than the gravity, and thus both have a tendency to float upward. As can be seen from the above, the sealing member 33 and the weight member 34 are connected by the connecting member 32, and the connecting member 32 can pivot relative to the supporting member 31, thereby forming a lever structure. Because the distance from the counterweight 34 to the pivot axis is greater than the distance from the sealing member 33 to the pivot axis, according to the lever principle, the counterweight 34 moves upwards, and the sealing member 33 moves downwards, so that the sealing member 33 no longer seals the liquid inlet 11, water can enter the sheath tube 10 to contact with the measuring probe 20, and the measuring probe 20 can further measure some parameters of the water.

As shown in fig. 3, when the water level in the open pond body falls to expose the weight 34 to the water surface, and the sealing member 33 is submerged in the water, since the sealing member 33 is still submerged in the water, the sealing member 33 is subjected to both gravity and buoyancy, and since the buoyancy is greater than the gravity, it tends to float upward, and the weight 34 is located above the water surface, and the weight 34 is only subjected to the gravity, the weight 34 tends to fall. According to the lever principle, the weight part 34 moves downwards, the sealing part 33 moves upwards, and the sealing part 33 can seal the liquid inlet 11, so that a part of water is stored in the sheath pipe 10, the measuring probe 20 can be always in contact with the water, and the measuring probe 20 is prevented from being damaged due to water loss.

As shown in fig. 4, when the water level in the open cell body is lowered to expose the sealing member 33 out of the water surface, the sealing member 33 and the weight member 34 are both above the water surface, and both of them are subjected to the same gravity at the same time and both of them have a tendency to fall. Since the distance from the weight 34 to the pivot axis a is greater than the distance from the sealing member 33 to the pivot axis a, i.e. the force arms are different, the weight 34 still enables the sealing member 33 to block the liquid inlet 11, so that the measuring probe 20 still can be in contact with water.

When the water level in the open pool body rises to enable the counterweight 34 to be completely immersed in water, the counterweight 34 and the sealing member 33 are subjected to the same buoyancy at the same time, the counterweight 34 drives the sealing member 33 to no longer block the liquid inlet 11, and the measuring probe 20 can be continuously contacted with the water to measure some parameters of the water.

According to the measuring device, the water loss protection mechanism 30 is arranged, so that the measuring probe 20 can be continuously kept in contact with the liquid to be measured, the measuring probe 20 has a water loss protection function, on one hand, damage to the measuring probe 20 due to water loss is avoided, the service life of the measuring device is prolonged, on the other hand, the water loss protection mechanism 30 is designed in a pure mechanical mode, automatic protection can be achieved, stability and reliability are achieved, the fault rate is low, the measuring probe 20 does not need to be protected by operators through manual water loss frequently, damage to the measuring probe 20 due to water loss caused by negligence or improper operation of the operators is avoided, the workload and the working difficulty of the operators are reduced, and the maintenance cost is saved.

Meanwhile, the measuring device has the advantages of integration, automation, standardization, simple manufacture, stable structure, flexible disassembly, strong applicability, no maintenance, small and attractive appearance and good protection effect of the measuring probe 20, and is suitable for various online instrument probes with water loss protection requirements.

Therefore, the scope of the present invention should not be limited to the disclosure of the embodiments, but includes various alternatives and modifications without departing from the scope of the present invention, which is defined by the claims of the present patent application.

Claims

1. A measuring device with a water loss protection function, the measuring device comprising:

the lower end of the protective sleeve is provided with a liquid inlet;

the protection mechanism of desiccation, the protection mechanism of desiccation includes support piece, connecting piece, seals the weight piece that piece and density are less than solution, support piece locates on the lateral wall of protecting pipe, the connecting piece with support piece passes through pin joint axle pin joint, just the one end of connecting piece is connected seal the piece, the looks remote connection the weight piece, the weight piece drives when being in solution seal the shutoff not of piece the inlet drives when being in solution seal the shutoff of piece the inlet.

2. A measuring device according to claim 1, wherein the distance of the closure member from the pivot axis is less than the distance of the weight member from the pivot axis, and wherein the closure member and the weight member are of the same weight and of the same density.

3. A measuring device according to claim 1 or 2, wherein the closure is provided with a sealing element for sealing.

4. The measuring device according to claim 1, wherein the sheath tube comprises a tube body and a water storage tube, one end of the water storage tube is connected with the tube body, the opposite end is provided with the liquid inlet, and the measuring probe is arranged in the water storage tube.

5. The measuring device of claim 4, wherein the storage tube is sleeved outside the tube body and connected to the tube body.

6. A measuring device according to claim 4, wherein the support is provided on an outer side wall of the reservoir.

7. A measuring device according to claim 4, wherein the end of the trap connected to the body is provided with a through hole for the passage of a measuring probe.

8. The measuring device of claim 1, further comprising a fixed support, wherein the sheath tube is movably connected to the fixed support.

9. A measuring device according to claim 8, wherein the fixing support is circular or square.

10. The measurement device of claim 1, further comprising a junction box disposed at an upper end of the sheath tube and electrically connected to the measurement probe.