CN209783709U - Liquid level sensor detection device - Google Patents
Liquid level sensor detection device Download PDFInfo
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- CN209783709U CN209783709U CN201920959525.6U CN201920959525U CN209783709U CN 209783709 U CN209783709 U CN 209783709U CN 201920959525 U CN201920959525 U CN 201920959525U CN 209783709 U CN209783709 U CN 209783709U
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Abstract
The application provides a liquid level sensor detection device, relates to the industry detection field. The liquid level sensor detection device comprises an air inlet mechanism and a locking mechanism; the air inlet mechanism comprises an air inlet valve, a pressure reducing valve, a pressure monitoring device and an air inlet, the output end of the air inlet valve is respectively connected with the locking mechanism and the pressure reducing valve, and the output end of the pressure reducing valve is connected with the air inlet; locking mechanism includes sealing hose and locking Assembly, and sealing hose surrounds the air inlet sets up, and locking mechanism waits to detect level sensor locking in with sealing hose through locking Assembly under atmospheric pressure drive, forms confined space in sealing hose, and atmospheric pressure is applyed for confined space in to the air inlet to the relief pressure valve, and pressure monitoring device and relief pressure valve intercommunication for detect the atmospheric pressure in the confined space. The liquid level sensor to be detected is locked, sealed and detected through the locking mechanism, and the detection efficiency is improved.
Description
Technical Field
The application relates to the technical field of industrial detection, in particular to a liquid level sensor detection device.
Background
Level sensors are meters used in industrial process measurement and control systems to indicate and control liquid levels, and there is currently no uniform calibration for the calibration of level sensors. Since the liquid level sensor is a sensor for detecting liquid level by detecting pressure, and therefore calibration is pressure data, a pressure source is required, and the current liquid level sensor method is generally to output standard pressure output by the pressure source to the sensor. In the prior art, most of the adopted pressure sources are mechanical pressure generators, and each detection needs one-to-one manual connection and pressure output operation, so that the detection efficiency is low. In addition, because the liquid level sensor usually adopts a throw-in type working mode, and a probe of the liquid level sensor usually does not have a separate interface for connecting a pressure source, a water sump with a real depth is needed in the conventional common calibration method, then the sensor probe is thrown into water to a certain depth, the thrown depth is measured through a ruler, and the value of the sensor is calibrated through a measured value. However, the height of the water sump inspection liquid level in the method is completely adjusted manually, the detection efficiency is low, and time and labor are wasted.
SUMMERY OF THE UTILITY MODEL
In view of this, an object of the embodiments of the present application is to provide a liquid level sensor detecting device, so as to solve the problem of low detecting efficiency of a liquid level sensor in the prior art.
The embodiment of the application provides a liquid level sensor detection device, which comprises an air inlet mechanism and a locking mechanism; the air inlet mechanism comprises an air inlet valve, a pressure reducing valve, a pressure monitoring device and an air inlet, wherein the input end of the air inlet valve is connected with an external air inlet pipeline, the first output end of the air inlet valve is connected with the locking mechanism, the second output end of the air inlet valve is connected with the input end of the pressure reducing valve, the output end of the pressure reducing valve is connected with the air inlet, and the pressure monitoring device is communicated with the pressure reducing valve; locking mechanism includes sealing hose and locking Assembly, sealing hose surrounds the air inlet setting, and is gaseous through admission valve gets into behind the relief pressure valve, the atmospheric pressure drive of first output end locking mechanism passes through locking Assembly makes and places the level sensor that waits to detect in the sealing hose is locked in the sealing hose, makes form the confined space in the sealing hose, the relief pressure valve passes through the air inlet does exert atmospheric pressure in the confined space, pressure monitoring device with the relief pressure valve intercommunication to detect through pressure monitoring device atmospheric pressure in the confined space.
In the implementation process, the gas driving locking mechanism is used for locking and sealing the liquid level sensor to be detected through the matching of the gas inlet mechanism and the locking mechanism, and air pressure is applied to the liquid level sensor, so that the detection of the liquid level sensor is realized, the liquid level sensor does not need to be put into a water sump, one-to-one connection and pressure output operation are not needed to be manually carried out during detection at every time, the operation steps are simplified, and the detection efficiency of the liquid level sensor is improved.
optionally, the device further comprises a frame, the locking mechanism further comprises a locking power source and a pressure plate, and the locking assembly comprises a locking gland and a locking head; the pressing plate is arranged on the rack, an included angle of a preset angle is formed between the plane of the pressing plate and the insertion direction of the liquid level sensor to be detected, and the pressing plate comprises at least one first through hole for inserting the liquid level sensor to be detected; the locking gland is arranged around the inner wall of the first through hole, a first step surface is arranged on the outer wall of the locking gland facing the pressure plate, the first step surface is abutted against the pressure plate, and the inner wall of the locking gland facing the sealing hose is attached to the locking head; the locking head surrounds sealing hose's outer wall sets up, locking head orientation locking gland's outer wall is followed insertion direction thickness crescent, the locking power supply with first output is connected for under atmospheric pressure the effect to the clamp plate apply a direction with the effort that the insertion direction is the same.
in the above-mentioned realization process, support the first step face of holding the locking gland through locking power supply drive clamp plate, the locking head is pressed to the locking gland, and the outer wall of laminating sealing hose is encircleed to the locking head to make sealing hose closely laminate with the level sensor that awaits measuring and form sealed space, guaranteed sealed space's seal, do not need the manual work to carry out level sensor's input setting, thereby improved detection efficiency and rate of accuracy.
Optionally, the locking mechanism further includes a fixing plate, the fixing plate is provided with at least one second through hole for inserting the liquid level sensor to be detected, the at least one second through hole corresponds to the at least one first through hole in position, the locking head is provided with a second step surface at a contact position with the second through hole, and the second step surface abuts against the fixing plate.
in the implementation process, the locking head is abutted to the fixing plate through the second step surface, so that the locking mechanism is prevented from sliding downwards due to air pressure when the liquid level sensor is locked, the sealing performance of a sealing space caused by loosening of the locking mechanism is prevented from being reduced, and the detection accuracy is improved.
Optionally, the locking power source is a cylinder.
In the implementation process, the air cylinder is used as a locking power source, the pneumatic structure has the advantages of simple structure, light weight and simple installation and maintenance, and the energy cost is reduced.
optionally, the inner diameter of the sealing hose is larger than the outer diameter of the liquid level sensor to be detected, and the difference between the inner diameter of the sealing hose and the outer diameter of the liquid level sensor to be detected is smaller than or equal to a preset length.
In the implementation process, when the outer diameter of the liquid level sensor to be detected is slightly smaller than the inner diameter of the sealing hose, the sealing hose can be ensured to completely and tightly surround the liquid level sensor to be detected, so that the detection accuracy is ensured.
Optionally, the number of the locking assemblies and the number of the air inlets are at least two, the air inlet mechanism further comprises an air distribution valve, the air distribution valve comprises at least two air distribution channels, the number of the locking assemblies, the number of the air inlets and the number of the air distribution channels are the same, and each air distribution channel is connected with the corresponding air inlet.
In the implementation process, the locking assemblies and the air inlets are at least two, and gas is input into each air inlet through the gas distributing valve, so that the at least two locking assemblies are driven to detect at least two liquid level sensors simultaneously, batch detection of the liquid level sensors can be realized, and detection efficiency is improved.
Optionally, the relief pressure valve includes one-level relief pressure valve and second grade precision relief pressure valve, the input of one-level relief pressure valve with first output is connected, the output of one-level relief pressure valve with the input of second grade precision relief pressure valve is connected, the output of second grade precision relief pressure valve with the air inlet is connected.
In the implementation process, the air pressure entering the locking mechanism and the air pressure at the position of the liquid level sensor to be detected are limited through the two-stage pressure reducing valves, so that the safety of the liquid level sensor detection device is improved.
Optionally, the monitoring device comprises a pressure gauge, and the pressure gauge is communicated with the output end of the secondary precision pressure reducing valve.
Optionally, the air intake mechanism comprises a manual directional valve.
in the implementation process, the manual reversing valve is used for controlling gas to flow into the locking power source or the pressure reducing valve, so that the operation simplicity of air pressure control is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a block diagram of an air intake mechanism according to an embodiment of the present disclosure;
FIG. 2 is a schematic structural diagram of a locking mechanism and a portion of an air intake mechanism according to an embodiment of the present disclosure;
FIG. 3 is a schematic structural view of another direction of a locking mechanism and a part of an air inlet mechanism according to an embodiment of the present disclosure;
Fig. 4 is a partial structural schematic diagram of a locking mechanism provided in an embodiment of the present application.
Icon: 10-liquid level sensor detection means; 12-an air intake mechanism; 121-an air inlet valve; 122-a pressure relief valve; 1221-primary pressure relief valve; 1222-a two-stage precision pressure reducing valve; 123-a pressure monitoring device; 124-air inlet; 125-gas separation valve; 14-a locking mechanism; 141-sealing a hose; 142-a locking power source; 143-a pressing plate; 144-locking gland; 1441 — first step face; 1442 — second step face; 145-a locking head; 146-a fixed plate; 16-machine frame.
Detailed Description
The technical solution in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
For the production and manufacturing process of the liquid level sensor, a calibration source needs to be set when the liquid level sensor is calibrated, and since the liquid level sensor is actually a pressure sensor, the calibration work is actually calibrated pressure data, and the calibration source is usually a pressure source. However, the applicant researches and discovers that the current pressure source generally uses a mechanical pressure generator, the mechanical pressure generator and the liquid level sensor are manually connected each time calibration is carried out, and the mechanical pressure generator is operated to output pressure to the liquid level sensor, so that the calibration step is complicated, and the calibration efficiency is reduced; meanwhile, the existing liquid level sensor is generally in a drop-in type working mode, and the liquid level sensor is usually dropped into a container with known water depth, so that the liquid level sensor is measured according to actual water depth data, and the detection efficiency of the liquid level sensor is further reduced.
In order to solve the above problem, the present embodiment provides a liquid level sensor detection device 10.
The liquid level sensor detection device 10 comprises an air inlet mechanism 12 and a locking mechanism 14, one end of the air inlet mechanism 12 is connected with an external air inlet pipeline, the other end of the air inlet mechanism 12 is connected with the locking mechanism 14, and the locking mechanism 14 is used for fixing a liquid level sensor to be detected and detecting the liquid level sensor.
Referring to fig. 1, fig. 1 is a block diagram of an air intake mechanism according to an embodiment of the present disclosure.
The intake mechanism 12 includes an intake valve 121, a pressure reducing valve 122, a pressure monitoring device 123, and an intake port 124. The input end of admission valve 121 is connected with external admission line, and the first output of admission valve 121 is connected with locking mechanism 14, and the second output of admission valve 121 is connected with the input of relief pressure valve 122, and the output and the air inlet 124 of relief pressure valve 122 are connected to input locking mechanism 14 with gaseous through air inlet 124.
Through the structure of the air inlet mechanism 12, the air with different pressures is respectively input to the position of the liquid level sensor to be detected and the locking mechanism 14, and the pressure applied to the liquid level sensor to be detected can be independently and finely adjusted, so that the safety and the detection accuracy of the liquid level sensor to be detected are improved.
In the present embodiment, the intake valve 121 may be composed of a valve body, a rotary check valve, a butterfly valve, and a control cylinder. The rotary check valve is provided with a balance weight and a fluororubber sealing ring, when a compressor externally connected with an air inlet pipeline is started, a compressor host machine inhales air, the rotary check valve is rapidly opened due to pressure difference, and after the compressor is stopped and loses pressure difference, the rotary check valve is controlled by the balance weight and can be timely and rapidly closed tightly, so that the phenomenon of stopping and oil discharging is avoided. The opening and closing of the butterfly valve are controlled by the control cylinder, and the butterfly valve is controlled to be opened or closed according to the extension length of the piston of the control cylinder, so that the air input of the compressor is adjusted.
alternatively, the air distribution of the first output end and the second output end of the air intake valve 121 may be realized by a manual directional valve, and the air intake valve 121 may further include a manual directional valve disposed between the valve body and the pressure reducing valve 122, and the manual directional valve is also called a criris valve, which is a valve having a multi-directional adjustable passage and is capable of changing the flow direction of the fluid at the right moment.
It should be understood that the present embodiment may also employ a solenoid directional valve to achieve gas diversion in addition to a manual directional valve. Different electromagnetic directional valves function at different positions of the control system, the most common being one-way valves, safety valves, directional control valves, speed regulating valves, etc. Therefore, the electromagnetic directional valve can be matched with different circuits to realize expected control, and the control precision and flexibility can be better ensured.
The pressure reducing valve 122 is a valve that reduces the inlet pressure to a certain required outlet pressure after adjustment, and makes the outlet pressure automatically keep stable by means of the energy of the medium itself, in this embodiment, the inlet (input end) of the pressure reducing valve 122 is the second output end of the air inlet valve 121, and the outlet (output end) thereof is connected to the air inlet 124.
Alternatively, the pressure reducing valve 122 in the present embodiment may be a combination type pressure reducing valve, an action type pressure reducing valve, a piston type pressure reducing valve, a diaphragm type pressure reducing valve, a direct type pressure reducing valve, or other types.
The liquid level sensor to be detected is sensitive to air pressure, and can be damaged when the air pressure is too high. Therefore, as an alternative embodiment, the pressure reducing valve 122 in the intake mechanism 12 may include a primary pressure reducing valve 1221 and a secondary precision pressure reducing valve 1222.
The compressed gas output from the intake valve 121 before entering the primary pressure reducing valve 1221 is at a first predetermined pressure, the primary pressure reducing valve 1221 limits the pressure of the compressed gas to a second predetermined pressure, and the compressed gas is finely regulated to a third predetermined pressure by the secondary precision pressure reducing valve 1222 after entering the secondary precision pressure reducing valve 1222. The first preset pressure can be a pressure range which can be 0.4-0.8MPa, the second preset pressure can be 0.4MPa, and the third preset pressure can be specifically adjusted according to the detection range of the liquid level sensor to be detected.
In this embodiment, by providing the two-stage precision pressure reducing valve 1222, the air pressure entering the space where the locking mechanism 14 and the liquid level sensor are located is limited based on the two-stage pressure reducing valve, so that the safety of detection is improved.
Because the two-stage precision pressure reducing valve 1222 is used for outputting gas to the sealed space where the liquid level sensor to be detected is located through the gas inlet 124, the gas pressure at the output end of the two-stage precision pressure reducing valve 1222 is the same as the pressure received by the liquid level sensor to be detected. As an optional implementation manner, the pressure monitoring device 123 is communicated with a branch of the second-stage precision pressure reducing valve 1222, the pressure applied to the liquid level sensor to be detected is detected by the pressure monitoring device 123, and the pressure applied to the liquid level sensor to be detected, which is detected by the pressure monitoring device 123, is compared with the pressure detected by the liquid level sensor to be detected, so that the detection of the liquid level sensor to be detected can be realized, if the error is smaller than the error threshold, it indicates that the liquid level sensor to be detected is normal, otherwise, the liquid level sensor needs to be calibrated.
The two-stage precision pressure reducing valve 1222 reduces the pressure of the medium by controlling the opening of the opening/closing member in the valve body to adjust the flow rate of the medium, and maintains the pressure within a predetermined range by adjusting the opening of the opening/closing member by the pressure after the valve, and protects the subsequent valve devices by maintaining the outlet pressure within a predetermined range when the inlet pressure is changed. Alternatively, the two-stage precision pressure reducing valve 1222 in this embodiment may be a proportional pressure reducing valve, a self-operated pressure reducing valve, a back pressure regulating valve, or the like.
Alternatively, the pressure monitoring device 123 may be a pressure gauge, or may be other components capable of detecting the pressure of the gas, such as a pressure sensor.
Referring to fig. 2, fig. 3 and fig. 4, fig. 2 is a schematic structural diagram of a locking mechanism and a partial air intake mechanism provided in an embodiment of the present application, fig. 3 is a schematic structural diagram of another direction of the locking mechanism and the partial air intake mechanism provided in the embodiment of the present application, and fig. 4 is a schematic partial structural diagram of the locking mechanism provided in the embodiment of the present application.
The locking mechanism 14 includes a sealing hose 141 and a locking assembly, the sealing hose 141 is disposed around the air inlet 124, and an opening for inserting the liquid level sensor to be detected is reserved at the upper end of the sealing hose 141 far from the air inlet 124, when the liquid level sensor is placed in the sealing hose 141, the locking assembly locks the liquid level sensor under the driving of the air pressure transmitted from the first output end of the air inlet valve 121, so that a sealing space is formed between the sealing hose 141 and the liquid level sensor, the pressure reducing valve 122 applies the air pressure to the sealing space through the air inlet 124, and then the pressure applied to the liquid level sensor in the sealing space can be detected through the pressure monitoring device 123.
In order to enable the liquid level sensor to be detected to be easily inserted into the sealing hose 141 and tightly attached to the sealing hose, the inner diameter of the sealing hose 141 is larger than the outer diameter of the liquid level sensor to be detected, and the difference between the inner diameter of the sealing hose and the outer diameter of the liquid level sensor to be detected is smaller than or equal to a preset length. Alternatively, the preset length may be 1 mm, or other suitable length selected according to the material characteristics of the sealing hose 141.
Optionally, the level sensor detecting device 10 may further include a frame 16, and the air inlet mechanism 12 and the locking mechanism 14 are disposed on the frame 16. It should be understood that the material of the frame 16 may be metal, alloy, plastic, composite, etc.
The locking mechanism 14 may also include a locking power source 142 and a pressure plate 143, and the locking assembly includes a locking gland 144, a locking head 145.
The locking power source 142 may be a pneumatic source, an electric source, or other driving sources, and in this embodiment, since the liquid level sensor to be detected performs pressurization detection by gas, in order to reduce the equipment cost, the locking power source 142 may employ a cylinder, and the cylinder is a cylindrical metal part that guides a piston to perform linear reciprocating motion in the cylinder.
The cylinder is selected as the locking power source 142, so that the pneumatic locking device has the advantages of simple and portable structure and simple installation and maintenance, and simultaneously reduces the equipment cost and the energy cost.
The pressing plate 143 is disposed on the frame 16, and a plane of the pressing plate 143 forms an included angle of a preset angle with an insertion direction of the liquid level sensor to be detected, and the pressing plate 143 includes at least one first through hole for inserting the liquid level sensor to be detected, so that the shape of the first through hole is similar to the shape of the cross section of the liquid level sensor to be detected. In this embodiment, the preset angle between the pressing plate 143 and the insertion direction of the liquid level sensor to be detected may be substantially 90 °. Alternatively, the platen 143 and the frame 16 may be the same material.
The locking gland 144 is disposed around an inner wall of the first through hole, and an inner wall thereof is disposed to abut against an outer wall of the locking head 145. The locking gland 144 is provided with a first step surface 1441 facing the pressing plate 143 (the insertion direction of the liquid level sensor to be detected), and the pressing plate 143 is pressed downward by the locking power source 142 and abuts against the first step surface 1441 to apply downward pressure to the locking gland 144.
The locking head 145 is disposed around the outer wall of the sealing hose 141, the thickness of the outer wall of the locking head 145 is gradually increased along the downward pressing direction of the pressing plate 143, and the inclination angle of the outer wall of the locking head 145 can resolve the downward pressure into horizontal inward and vertical downward acting forces. The pressing plate 143 drives the locking gland 144 to move downwards when pressing down, the inner wall of the locking gland 144 is gradually attached to the outer wall of the locking head 145, and due to the outer wall of the locking head 145, the locking head 145 receives horizontal inward and vertical downward acting forces, so that inward extrusion acting forces are formed on the sealing hose 141, the sealing hose 141 is deformed, the liquid level sensor to be detected surrounded by the sealing hose 141 is locked, and a sealing space is formed in the sealing hose.
The inclination angle of the outer wall of the locking head 145 can be specifically adjusted according to the locking requirement of the liquid level sensor to be detected.
Optionally, in order to avoid that the locking head 145 slides along the insertion direction of the liquid level sensor to be detected, the sealing space is less airtight, and thus the detection result is inaccurate, the locking mechanism 14 may further include a fixing plate 146, the fixing plate 146 is disposed on the frame 16, an included angle of a preset angle is formed between the plane where the fixing plate 146 is located and the insertion direction of the liquid level sensor to be detected, and the preset angle between the plane where the fixing plate 146 is located and the insertion direction of the liquid level sensor to be detected is substantially the same as the preset angle between the plane where the pressing plate 143 is located and the insertion direction of the liquid level sensor to.
At least one second through hole is formed in the fixing plate 146, and the position of the second through hole corresponds to the position of the first through hole, so that the liquid level sensor to be detected can be inserted into the second through hole.
The locking head 145 is provided with a second stepped surface 1442 at a position where the second through hole contacts, and the second stepped surface 1442 abuts against the fixing plate 146 when a downward acting force is applied, so that the locking head 145 is prevented from continuously sliding downward, the stability of the locking mechanism 14 is improved, and the detection accuracy is ensured.
When the liquid level sensor is detected, in order to further improve the detection efficiency, the liquid level sensor detection device 10 in the embodiment of the present application may also detect a plurality of liquid level sensors to be detected at the same time, and then the liquid level sensor detection device 10 includes at least two locking assemblies and the air inlet 124, and the air inlet mechanism 12 further includes the air distribution valve 125.
The air distribution valve 125 includes at least two air distribution channels, an input end of each air distribution channel is connected to an output end of the pressure reducing valve 122, an output end of each air distribution channel is connected to the corresponding air inlet 124, and the number of the locking assemblies, the number of the air inlets 124, and the number of the air distribution channels are the same.
When the liquid level sensor detection device 10 is used for detection, at least two liquid level sensors to be detected are respectively inserted into the corresponding sealing hoses 141, each liquid level sensor to be detected and the corresponding sealing hose 141 form a sealing space, the compressor and the air inlet valve 121 are opened, the air inlet valve 121 respectively inputs compressed gas into the pressure reducing valve 122 and the locking power source 142 in the locking mechanism 14, the locking power source 142 drives the pressing plate 143 to apply a force to the locking pressing cover 144, the locking pressing cover 144 presses the sealing hose 141 to deform under the force, thereby tightly wrapping the liquid level sensor to be detected to prevent the sealed space from being communicated with the outside, adjusting the air pressure in the sealed space to a preset value through the pressure reducing valve 122, according to the reading of the pressure monitoring device 123 should be the same as the preset value, the reading is compared with the detection value of the liquid level sensor to obtain the detection result.
In summary, the embodiment of the present application provides a liquid level sensor detection device, which includes an air inlet mechanism and a locking mechanism; the air inlet mechanism comprises an air inlet valve, a pressure reducing valve, a pressure monitoring device and an air inlet, wherein the input end of the air inlet valve is connected with an external air inlet pipeline, the first output end of the air inlet valve is connected with the locking mechanism, the second output end of the air inlet valve is connected with the input end of the pressure reducing valve, the output end of the pressure reducing valve is connected with the air inlet, and the pressure monitoring device is communicated with the pressure reducing valve; locking mechanism includes sealing hose and locking Assembly, sealing hose surrounds the air inlet setting, and is gaseous through admission valve gets into behind the relief pressure valve, the atmospheric pressure drive of first output end locking mechanism passes through locking Assembly makes and places the level sensor that waits to detect in the sealing hose is locked in the sealing hose, makes form the confined space in the sealing hose, the relief pressure valve passes through the air inlet does exert atmospheric pressure in the confined space, pressure monitoring device with the relief pressure valve intercommunication to detect through pressure monitoring device atmospheric pressure in the confined space.
In the implementation process, the gas driving locking mechanism is used for locking and sealing the liquid level sensor to be detected through the matching of the gas inlet mechanism and the locking mechanism, and air pressure is applied to the liquid level sensor, so that the detection of the liquid level sensor is realized, the liquid level sensor does not need to be put into a water sump, one-to-one connection and pressure output operation are not needed to be manually carried out during detection at every time, the operation steps are simplified, and the detection efficiency of the liquid level sensor is improved.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. The above-described apparatus embodiments are merely illustrative, and for example, the flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus according to various embodiments of the present application, and the pressing manner of the pressing plate 143, the locking manner of the locking assembly, and the power supply manner of the locking power source 142 may be implemented in other manners. In this regard, each block in the flowchart or block diagrams may represent a portion of a module. It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved.
In addition, functional modules in the embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application.
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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (9)
1. The liquid level sensor detection device is characterized by comprising an air inlet mechanism and a locking mechanism;
The air inlet mechanism comprises an air inlet valve, a pressure reducing valve, a pressure monitoring device and an air inlet, wherein the input end of the air inlet valve is connected with an external air inlet pipeline, the first output end of the air inlet valve is connected with the locking mechanism, the second output end of the air inlet valve is connected with the input end of the pressure reducing valve, the output end of the pressure reducing valve is connected with the air inlet, and the pressure monitoring device is communicated with the pressure reducing valve;
The locking mechanism comprises a sealing hose and a locking assembly, the sealing hose surrounds the air inlet, after air enters the pressure reducing valve through the air inlet valve, air pressure output by the first output end drives the locking mechanism to enable the locking mechanism to be placed in the sealing hose and lock a liquid level sensor to be detected in the sealing hose through the locking assembly, so that a sealing space is formed in the sealing hose, and the pressure reducing valve applies air pressure in the sealing space through the air inlet to detect the air pressure in the sealing space through a pressure monitoring device.
2. The liquid level sensor detection device of claim 1, wherein the device further comprises a frame, the locking mechanism further comprises a locking power source and a pressure plate, and the locking assembly comprises a locking gland and a locking head;
The pressing plate is arranged on the rack, an included angle of a preset angle is formed between the plane of the pressing plate and the insertion direction of the liquid level sensor to be detected, and the pressing plate comprises at least one first through hole for inserting the liquid level sensor to be detected;
The locking gland is arranged around the inner wall of the first through hole, a first step surface is arranged on the outer wall of the locking gland facing the pressure plate, the first step surface is abutted against the pressure plate, and the inner wall of the locking gland facing the sealing hose is attached to the locking head;
the locking head surrounds sealing hose's outer wall sets up, locking head orientation locking gland's outer wall is followed insertion direction thickness crescent, the locking power supply with first output is connected for under atmospheric pressure the effect to the clamp plate apply a direction with the effort that the insertion direction is the same.
3. The detecting device for the liquid level sensor according to claim 2, wherein the locking mechanism further comprises a fixing plate, the fixing plate is provided with at least one second through hole for inserting the liquid level sensor to be detected, the at least one second through hole corresponds to the at least one first through hole in position, the locking head is provided with a second step surface at a contact position with the second through hole, and the second step surface abuts against the fixing plate.
4. The fluid level sensor detecting device of claim 2 or 3, wherein the locking power source is a cylinder.
5. The detecting device for the liquid level sensor according to claim 2, wherein the inner diameter of the sealing hose is larger than the outer diameter of the liquid level sensor to be detected, and the difference between the inner diameter of the sealing hose and the outer diameter of the liquid level sensor to be detected is smaller than or equal to a preset length.
6. The liquid level sensor detecting device according to claim 2, wherein the number of the locking assemblies and the number of the air inlets are at least two, the air inlet mechanism further comprises an air distribution valve, the air distribution valve comprises at least two air distribution channels, the number of the locking assemblies, the number of the air inlets and the number of the air distribution channels are the same, and each air distribution channel is connected with the corresponding air inlet.
7. The apparatus of claim 1, wherein the pressure reducing valve comprises a primary pressure reducing valve and a secondary precision pressure reducing valve, an input end of the primary pressure reducing valve is connected to the first output end, an output end of the primary pressure reducing valve is connected to an input end of the secondary precision pressure reducing valve, and an output end of the secondary precision pressure reducing valve is connected to the air inlet.
8. The apparatus of claim 7, wherein the monitoring device comprises a pressure gauge in communication with an output of the two-stage precision pressure reducing valve.
9. The fluid level sensor detection device of claim 2, wherein the air intake mechanism comprises a manual directional valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920959525.6U CN209783709U (en) | 2019-06-24 | 2019-06-24 | Liquid level sensor detection device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920959525.6U CN209783709U (en) | 2019-06-24 | 2019-06-24 | Liquid level sensor detection device |
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| CN209783709U true CN209783709U (en) | 2019-12-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110118590A (en) * | 2019-06-24 | 2019-08-13 | 河南驰诚电气股份有限公司 | Liquid level sensor detection device |
| CN110118590B (en) * | 2019-06-24 | 2024-04-09 | 河南驰诚电气股份有限公司 | Liquid level sensor detection device |
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