CN113187714A - Liquid pump device with liquid level detection function - Google Patents
Liquid pump device with liquid level detection function Download PDFInfo
- Publication number
- CN113187714A CN113187714A CN202110386357.8A CN202110386357A CN113187714A CN 113187714 A CN113187714 A CN 113187714A CN 202110386357 A CN202110386357 A CN 202110386357A CN 113187714 A CN113187714 A CN 113187714A
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- Prior art keywords
- assembly
- liquid
- liquid level
- level detection
- traction
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/14—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measurement of pressure
- G01F23/18—Indicating, recording or alarm devices actuated electrically
Abstract
The invention belongs to the technical field of machinery, and particularly relates to a liquid pump device with a liquid level detection function, which is used for detecting liquid level change of liquid in the working process of the liquid pump.
Description
Technical Field
The invention belongs to the technical field of machinery, and particularly relates to a liquid pump device with a liquid level detection function.
Background
The hydraulic pump is a power element of a hydraulic system, and is an element which is driven by an engine or an electric motor, sucks oil from a hydraulic oil tank, forms pressure oil, discharges the pressure oil and sends the pressure oil to an execution element.
However, in the working process of the existing hydraulic pump, the liquid level change or the residual amount of oil in the hydraulic oil tank cannot be known in real time, and the situation that the hydraulic pump still works after the oil is discharged often occurs, so that the execution element cannot obtain the oil, and the service of nearby workers is found in time, so that the whole hydraulic system cannot continue to work.
Therefore, in order to solve the above problem, it is necessary to develop and design a liquid pump device with a liquid level detection function, which solves the problem that the conventional liquid pump device does not have a liquid level detection function.
Disclosure of Invention
Aiming at the defects in the prior art, the embodiment of the invention aims to provide a liquid pump device with a liquid level detection function, and aims to solve the following problems: the existing liquid pump device has the problem that the liquid level detection function is not available.
The embodiment of the invention is realized as follows: the utility model provides a take liquid pump device of liquid level detection function, includes liquid pump, feed liquor pipe and drain pipe, still includes:
a liquid level detection assembly located on the liquid pump.
As a further aspect of the present invention, the liquid level detection assembly includes:
the traction assembly is used for being placed in the liquid to be tested, and a load-bearing block placed in the liquid to be tested is arranged in the traction assembly;
the auxiliary assembly is assembled and connected with the retracting assembly and used for furling the traction assembly;
the measuring component is assembled and connected with the traction component, is used for receiving a signal from the load-bearing block when the load-bearing block is stressed and displaying the liquid level information of the measured liquid; and
a load bearing assembly for mounting the traction assembly, the auxiliary assembly and the measurement assembly.
As a further aspect of the present invention, the pulling assembly further comprises:
and the traction rope assembly is connected among the measuring assembly, the auxiliary assembly and the load-carrying block and is used for transmitting traction force from the load-carrying block.
As a further aspect of the present invention, the measuring assembly includes:
the traction rope assembly is assembled and connected with the pressure sensing assembly and is used for measuring traction force from the weight carrier; and
the signal processing assembly is electrically connected with the pressure sensing assembly, and a pressure signal of the pressure sensing assembly is converted into a digital signal by the signal processing assembly; and a display screen for displaying the digital signal.
As a further aspect of the present invention, the pressure sensing assembly includes:
a pressure sensor; and the elastic component is connected with the traction rope, and an extrusion component used for extruding the pressure sensor is arranged in the elastic component.
As a further aspect of the present invention, the auxiliary assembly includes:
the winding wheel assembly is used for winding the traction rope assembly; and
and the limiting assembly is positioned on the winding wheel assembly and used for fixing the position of the winding wheel.
As a further aspect of the present invention, the bearing assembly includes:
the liquid level detection device comprises a liquid level detection main body, wherein a fixing plate for mounting a display screen is arranged on the liquid level detection main body; and a fixing component for installing the liquid level detection main body on the liquid inlet pipe.
In summary, compared with the prior art, the embodiment of the invention has the following beneficial effects:
the feed liquor pipe of liquid level detection subassembly installation on the liquid pump can be when the feed liquor pipe stretches into the container and absorbs liquid, changes this signal of liquid level change and converts the function that digital signal realized the real-time supervision liquid level into again through converting into physical signal, and the staff of being convenient for knows the concrete surplus of liquid in the container, has solved the problem that traditional liquid pump does not possess the liquid level detection function.
To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is an isometric view of a liquid pump apparatus with a liquid level detection function according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view of a liquid level detection assembly provided by an embodiment of the invention.
Fig. 3 is an isometric view of an auxiliary assembly provided by an embodiment of the present invention.
Fig. 4 is an isometric view of an auxiliary assembly provided by an embodiment of the present invention.
Fig. 5 is a position distribution diagram of a knob according to an embodiment of the present invention.
Reference numerals: the device comprises a liquid pump 1, a liquid inlet pipe 2, a liquid outlet pipe 3, a liquid level detection main body 4, a fixing ring 5, a connecting block 6, a locking bolt 7, a weight loading block 8, a first rope 9, a wire winding wheel 10, a second rope 11, a movable plate 12, a pressing block 13, a pressure sensor 14, a signal processor 15, a power indicator 16, a power supply 17, a fixing rod 18, a spring 19, a display screen 20, a switch 21, a fixing plate 22, a hook 23, a knob 24, a limiting rod 25, a limiting hole 26 and a sealing cover 27.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
Referring to fig. 1, a liquid pump device with liquid level detection function includes a liquid pump 1, a liquid inlet pipe 2 and a liquid outlet pipe 3, and further includes:
a level detection assembly located on the liquid pump 1.
In the embodiment of the invention, the liquid inlet pipe 2 on the liquid pump 1 extends into the container to absorb liquid, the absorbed liquid is discharged into a component matched with the liquid inlet pipe through the liquid outlet pipe 3 under the driving of a power system, and the liquid level detection assembly is arranged on the liquid inlet pipe 2 on the liquid pump 1, so that the liquid level parameter of the liquid in the container can be monitored in real time while the liquid in the container is extracted by the liquid inlet pipe 2, a worker can know the specific residual amount of the liquid in the container conveniently, and the problem that the traditional liquid pump 1 does not have the liquid level detection function is solved.
In one embodiment of the present invention, referring to fig. 2, the liquid level detecting assembly includes:
the traction assembly is used for being placed in the liquid to be tested, and a load-bearing block 8 placed in the liquid to be tested is arranged in the traction assembly; the liquid level of the measured liquid can drive the weight bearing block 8 to descend in the descending process, and the auxiliary assembly is assembled and connected with the retracting assembly and used for furling the traction assembly; the measuring component is assembled and connected with the traction component, is used for receiving a signal from the load weight 8 when the load weight is stressed and displaying the liquid level information of the measured liquid; the weight bearing block 8 drives the traction component to descend and simultaneously drives the auxiliary component to move, meanwhile, a traction force is applied to the measurement component, the weight bearing block 8 is suspended at a proper position away from the bottom of the container, at the moment, the weight bearing block 8 is in a state of stress balance, the weight bearing block 8 is subjected to pressure from liquid above and buoyancy from liquid below, the resultant force of the weight bearing block and the buoyancy from the liquid below is called as pressure difference, the force applied to the measurement component is equal to the sum of the gravity of the weight bearing block 8 and the pressure difference above, when the liquid descends continuously, the pressure difference is gradually reduced, the force applied to the measurement component is also reduced until the liquid descends to zero contact with the weight bearing block 8, the force applied to the measurement component does not change any more afterwards, and by utilizing the principle, the measurement component monitors the change of the liquid level of the liquid by sensing the change of the pressure difference and displays the liquid level parameters through internal processing, the detection precision is improved.
In one embodiment of the present invention, referring to fig. 2, the traction assembly further comprises:
connect the haulage rope subassembly between measuring component, auxiliary assembly and load piece 8, a traction force point for the transmission comes from load piece 8, the haulage rope subassembly is equipped with the first rope 9 that is used for connecting load piece 8 and auxiliary assembly and the second rope 11 that is used for connecting auxiliary assembly and measuring component, when load piece 8 descends, first rope 9 drives the auxiliary assembly motion simultaneously, the length of first rope 9 lengthens gradually, the length of second rope 11 shortens gradually, thereby realize transmitting traction force for measuring component's function.
In this embodiment, the first rope 9 and the second rope 11 may also be replaced by one rope, the principle of which is the same as that of the two ropes, and both of which can have the function of transmitting force, and the material of which is also not limited, and is a conventional technical means, and thus, the description thereof is omitted.
In one embodiment of the present invention, referring to fig. 2, the measuring assembly includes:
the traction rope assembly is assembled and connected with the pressure sensing assembly and is used for measuring traction force from the weight carrier 8; the signal processing assembly is electrically connected with the pressure sensing assembly, and the signal processing assembly is internally provided with a signal processing module used for converting a pressure signal of the pressure sensing assembly into a digital signal; and a display screen 20 for displaying digital signals, wherein a signal processor 15 for converting the pressure signals in the pressure sensing assembly into the digital signals is arranged in the signal processing assembly, and the signal processor 15 can display the digital signals on the display screen 20, so that the digital signals can be conveniently checked by a worker and have the characteristic of good convenience.
Of course, the signal processing module in this embodiment is further provided with a power supply 17 for providing power to the pressure sensing module and the signal processor 15, a switch 21 for controlling the power supply 17, and a power indicator 16 for displaying the remaining power of the power supply 17, which are conventional technical means and will not be described again.
In an embodiment of the present invention, referring to fig. 2, the pressure sensing assembly includes:
a pressure sensor 14; the elastic assembly is connected with the traction rope, an extrusion assembly used for extruding the pressure sensor 14 is arranged in the elastic assembly, the pressure sensor 14 is electrically connected with the signal processor 15, the elastic assembly further comprises a spring 19 driving the extrusion assembly to extrude the pressure sensor 14, the tension of the spring 19 borne by the extrusion assembly is opposite to the direction of the traction force borne by the second rope 11, and the extrusion assembly comprises a movable plate 12 connecting the spring 19 and the second rope 11; and a pressing block 13 for pressing the pressure sensor 14, wherein the pressing block 13 is mounted on the movable plate 12, the pressing block 13 presses the pressure sensor 14 to be equal to the upward elastic force of the spring 19, in an initial state, that is, when the weight block 8 mentioned in the embodiment is suspended at a proper position away from the bottom of the container, the upward elastic force of the spring 19 is equal to the sum of the gravity of the weight block 8 and the upper pressure difference, although the gravity of the pressing block 13 and the movable plate 12 can be considered here, the gravity of the weight block 8, the gravity of the pressing block 13 and the gravity of the movable plate 12 are all invariable forces, and are collectively referred to as the gravity herein, so that: the upward elastic force of the spring 19 is equal to the sum of the attractive force and the pressure difference, when the liquid level drops for a certain distance, the sum of the pressure difference applied to the weight carrier 8 is reduced, the balance is broken, the spring 19 drives the auxiliary assembly to move through the second rope 11 under the action of the upward attractive force, and further drives the weight carrier 8 to move upward for a certain distance through the second rope 11, it should be noted that the moving distance of the weight carrier 8 is far less than the dropping distance of the liquid level, in order to prevent the change of the liquid pressure difference caused by the weight carrier 8 rising from the liquid, it can be known according to the elastic force F = kx of the spring 19 that the deformation amount of the spring 19 is small, at this time, the elastic coefficient k of the spring 19 meets a certain requirement, and until the pressure value applied to the pressure sensor 14 from the pressure block 13 reaches the limit value after the liquid level drops to the limit value, the level number on the display screen 20 is not changed here, so that the function of level detection is achieved.
In this embodiment, in order to prevent the movable plate 12 from shaking during the movement, a fixing rod 18 for guiding the movable plate 12 is further disposed in the pressure sensing assembly, the fixing rod 18 is mounted in the bearing assembly, and the movable plate 12 and the spring 19 are movably sleeved on the fixing rod 18.
In an embodiment of the present invention, referring to fig. 3 to 5, the auxiliary assembly includes:
the winding assembly is used for winding the traction rope assembly; and the spacing assembly is positioned on the wire coiling assembly and used for fixing the position of the wire coiling assembly, the wire coiling assembly comprises a wire coiling wheel 10 for coiling the first rope 9 and the second rope 11, the weight carrier 8 is lifted from the container by coiling the first rope 9 mainly after the measurement is finished, and the second rope 11 is in a loosened state and does not apply force to the spring 19; and drive reel 10 pivoted knob 24, reel 10 passes through fixed axle connection knob 24, spacing subassembly includes the gag lever post 25 of threaded connection on knob 24 and is located the spacing hole 26 on the carrier assembly, gag lever post 25 inserts to close to be connected in spacing hole 26 for fixed knob 24 prevents that reel 10 from rotating in the transportation, possesses the good characteristics of stability.
In an embodiment of the present invention, referring to fig. 1, the carrier assembly includes:
the liquid level detection device comprises a liquid level detection main body 4, wherein a fixing plate for mounting a display screen 20 is arranged on the liquid level detection main body 4; the traction assembly, the auxiliary assembly, the pressure sensing assembly and the signal processor 15 are all arranged in the liquid level detection main body 4, and the liquid level detection main body 4 is also provided with a sealing cover 27 for sealing the liquid level detection main body 4; the hook 23 is used for hanging the weight block 8, the sealing cover 27 and the hook 23 are both assembled and connected on the liquid level detection main body 4, and the fixing component comprises a fixing ring 5 which is sleeved on the liquid inlet pipe 2; and be used for fixed ring 5 locking bolt 7, fixed ring 5 and liquid level detection main part 4 be assembled between/be connected, install two connecting blocks 6 on fixed ring 5, locking bolt 7 threaded connection is on two connecting blocks 6 for adjust the distance between two connecting blocks 6, thereby realize fixed ring 5's function with unclamping, and then realize the function of installation and dismantlement liquid level detection subassembly.
In this embodiment, the fixing ring 5 is first sleeved on the liquid inlet pipe 2 and fixed by the locking bolt 7, then the liquid inlet pipe 2 extends into the container through the opening on the container, then the limiting rod 25 is pulled out from the limiting hole 26 on the liquid level detection body 4, and the weight 8 extends into the container through the opening, during the process that the weight 8 descends in the liquid, the first rope 9 drives the winding wheel 10 to rotate, and further the first rope 9 pulls the spring 19, until the weight is suspended at a proper position away from the bottom of the container, the weight 8 receives the pressure from the upper liquid and the buoyancy from the lower liquid, the resultant force of the two is called pressure difference, at this time, the upward elastic force of the spring 19 is equal to the sum of the gravity of the weight 8 itself and the pressure difference, and the pressure sensor 14 receives the minimum pressure from the pressure block 13, the liquid level value of the liquid displayed on the display screen 20 is the largest, when the liquid level drops for a certain distance, the sum of the pressure difference of the weight block 8 is reduced, the balance is broken, the upward resultant force is gradually increased, the pressure of the pressing block 13 on the pressure sensor 14 is increased, the liquid level value of the liquid displayed on the display screen 20 is reduced, the liquid level detection function is realized, meanwhile, the spring 19 drives the auxiliary assembly to move through the second rope 11, the weight block 8 is driven to move upwards for a certain distance through the first rope 9, until the liquid level drops to the extreme position, the pressure value of the pressure sensor 14 from the pressing block 13 also reaches the extreme value, the liquid level number on the display screen 20 does not change, a worker judges that the liquid level in the container reaches the minimum through observing the number on the display screen 20, the liquid needs to be added, and the liquid level detection device has the characteristic of high accuracy, when the liquid pump 1 is transported, the winding wheel 10 is driven to rotate through the rotating knob 24, so that the weight bearing block 8 is lifted and fixed on the hook 23, the winding wheel 10 is fixed by using the limiting rod 25, the weight bearing block 8 can be prevented from falling off in the transportation process, and the liquid pump has the characteristic of being convenient to transport.
In conclusion, the liquid level detection subassembly is installed the feed liquor pipe 2 on liquid pump 1, can be when feed liquor pipe 2 stretches into the container and absorbs liquid, change this signal of liquid level change into the function that the digital signal reconverted into the real-time supervision liquid level through converting into the physical signal again, and the staff of being convenient for knows the specific surplus of liquid in the container, has solved traditional liquid pump 1 and has not possessed the problem of liquid level detection function.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The utility model provides a take liquid pump of liquid level detection function, includes liquid pump, feed liquor pipe and drain pipe, its characterized in that still includes:
a liquid level detection assembly located on the liquid pump.
2. The liquid pump with liquid level detection function according to claim 1, wherein the liquid level detection assembly includes:
the traction assembly is used for being placed in the liquid to be tested, and a load-bearing block placed in the liquid to be tested is arranged in the traction assembly;
the auxiliary assembly is assembled and connected with the retracting assembly and used for furling the traction assembly;
the measuring component is assembled and connected with the traction component, is used for receiving a signal from the load-bearing block when the load-bearing block is stressed and displaying the liquid level information of the measured liquid; and
a load bearing assembly for mounting the traction assembly, the auxiliary assembly and the measurement assembly.
3. The liquid pump with liquid level detection function according to claim 2, wherein the drawing assembly further includes:
and the traction rope assembly is connected among the measuring assembly, the auxiliary assembly and the load-carrying block and is used for transmitting traction force from the load-carrying block.
4. A liquid pump with liquid level detection function according to claim 3, wherein the measurement assembly includes:
the traction rope assembly is assembled and connected with the pressure sensing assembly and is used for measuring traction force from the weight carrier; and
the signal processing assembly is electrically connected with the pressure sensing assembly, and a pressure signal of the pressure sensing assembly is converted into a digital signal by the signal processing assembly; and a display screen for displaying the digital signal.
5. The liquid pump with liquid level detection function according to claim 4, wherein the pressure sensing assembly comprises:
a pressure sensor; and the elastic component is connected with the traction rope, and an extrusion component used for extruding the pressure sensor is arranged in the elastic component.
6. The liquid pump with liquid level detection function according to claim 4, wherein the auxiliary assembly includes:
the winding wheel assembly is used for winding the traction rope assembly; and
and the limiting assembly is positioned on the winding wheel assembly and used for fixing the position of the winding wheel.
7. The liquid pump with liquid level detection function according to claim 4, wherein the bearing assembly comprises:
the liquid level detection device comprises a liquid level detection main body, wherein a fixing plate for mounting a display screen is arranged on the liquid level detection main body; and a fixing component for installing the liquid level detection main body on the liquid inlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110386357.8A CN113187714A (en) | 2021-04-12 | 2021-04-12 | Liquid pump device with liquid level detection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110386357.8A CN113187714A (en) | 2021-04-12 | 2021-04-12 | Liquid pump device with liquid level detection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113187714A true CN113187714A (en) | 2021-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110386357.8A Pending CN113187714A (en) | 2021-04-12 | 2021-04-12 | Liquid pump device with liquid level detection function |
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| CN (1) | CN113187714A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116659610A (en) * | 2023-07-25 | 2023-08-29 | 沈阳觅寻科技有限公司 | Liquid level meter based on wireless communication |
-
2021
- 2021-04-12 CN CN202110386357.8A patent/CN113187714A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116659610A (en) * | 2023-07-25 | 2023-08-29 | 沈阳觅寻科技有限公司 | Liquid level meter based on wireless communication |
| CN116659610B (en) * | 2023-07-25 | 2023-10-03 | 沈阳觅寻科技有限公司 | Liquid level meter based on wireless communication |
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