CN209855878U

CN209855878U - Liquid level measurement feedback device and system

Info

Publication number: CN209855878U
Application number: CN201920754882.9U
Authority: CN
Inventors: 陈晓东; 洪亲付; 李永
Original assignee: Hunan Liyu Amperex Technology Ltd
Current assignee: Hunan Liyu Environmental Protection Energy Co ltd
Priority date: 2019-05-23
Filing date: 2019-05-23
Publication date: 2019-12-27
Anticipated expiration: 2029-05-23

Abstract

The utility model provides a liquid level measurement feedback device and system, include: the automatic control device comprises a buoy, a rope, an automatic tightening device, a grade changing device and a signal feedback device; the buoy is connected with the automatic tightening device through a rope, the variable-level device is connected with the automatic tightening device in a kinematic pair mode, and the variable-level device is also connected with the signal feedback device; the buoy is used for measuring the change of the liquid level in real time; and the automatic tightening device is used for keeping the automatic tensioning state of the rope when the liquid level of the buoy changes, and transmitting the change of the liquid level to the signal feedback device through the grade changing device, so that the signal feedback device displays the change information of the liquid level, the change condition of the liquid level is measured and displayed in real time, and when the liquid level is lower, the liquid can be automatically supplemented.

Description

Liquid level measurement feedback device and system

Technical Field

The utility model belongs to the technical field of the level measurement technique and specifically relates to a level measurement feedback device and system are related to.

Background

At present, most of the measurement of the liquid level of an engine oil pan adopts a floating ball type engine oil pan liquid level measuring instrument, and a buoy in the device is not automatically screwed, so that even if a rollback function exists, depth information cannot be reflected in real time, and the measurement depth range is small.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a level measurement feedback device and system to realize the change condition that real-time measurement shows the liquid level, and when the liquid level is lower, can also supply liquid automatically.

In a first aspect, an embodiment of the present invention provides a liquid level measurement feedback device, the device includes: the automatic control device comprises a buoy, a rope, an automatic tightening device, a grade changing device and a signal feedback device;

the buoy is connected with the automatic tightening device through the rope, the variable-level device is connected with the automatic tightening device in a kinematic pair mode, and the variable-level device is also connected with the signal feedback device;

the buoy is used for measuring the change of the liquid level in real time;

the automatic tightening device is used for keeping the automatic tensioning state of the rope when the liquid level of the buoy on the liquid level changes, and transmitting the change of the liquid level to the signal feedback device through the level changing device, so that the signal feedback device displays the change information of the liquid level.

In combination with the first aspect, an embodiment of the present invention provides a first possible implementation manner of the first aspect, wherein the buoy is a spherical buoy, the gravity of the buoy is greater than the resilience force of the automatic tightening device, and is less than the sum of the maximum buoyancy force of the buoy and the resilience force of the automatic tightening device.

In combination with the first aspect, an embodiment of the present invention provides a second possible implementation manner of the first aspect, wherein the automatic tightening device includes an outer sleeve, a coil spring, a spring buckle, and a rope reel, the rope reel is connected to the rope, the spring buckle is disposed on the rope reel, the spring buckle is further connected to one end of the coil spring, the other end of the coil spring is connected to the outer sleeve, and the outer sleeve is connected to the gear shifting device in a kinematic pair manner.

In combination with the second possible implementation manner of the first aspect, the embodiment of the present invention provides a third possible implementation manner of the first aspect, wherein the step-changing device includes a first shaft gear, a first step shaft, a second step shaft, a first gear, a second shaft gear, a second gear, and a third step shaft; the first shaft gear is fixed on the first stepped shaft, the second shaft gear is fixed on the second stepped shaft, the first gear is respectively connected with the first stepped shaft and the second stepped shaft, and the second gear is respectively connected with the second stepped shaft and the third stepped shaft.

With reference to the third possible implementation manner of the first aspect, the present invention provides a fourth possible implementation manner of the first aspect, wherein the first stepped shaft and the outer sleeve form a kinematic pair, and the third stepped shaft is connected to the signal feedback device.

With reference to the fourth possible implementation manner of the first aspect, the present invention provides a fifth possible implementation manner of the first aspect, wherein the signal feedback device includes an inner dial, an outer dial, an inner pointer, and an outer pointer; the inner pointer is disposed in the inner dial, and the outer pointer is disposed in the outer dial;

the outer dial is used for displaying the change information of the liquid level through the outer pointer;

and the inner dial is used for converting the change information of the liquid level into an electric signal through the inner pointer and displaying the electric signal.

With reference to the fifth possible implementation manner of the first aspect, an embodiment of the present invention provides a sixth possible implementation manner of the first aspect, wherein the signal feedback device further includes an LED indicator light for displaying the electrical signal.

With reference to the fifth possible implementation manner of the first aspect, the present invention provides a seventh possible implementation manner of the first aspect, wherein the apparatus further includes an automatic supplementary switch, and the automatic supplementary switch includes a first button, a second button, a power line, a double-parallel copper ring, a copper sheet, a transverse tappet, a first spring, a second spring, a third spring, and a third shaft gear;

the first button is connected with one end of the double-parallel copper ring, the other end of the double-parallel copper ring is connected with the first spring, the power line is connected to two ends of the double-parallel copper ring, the copper sheet is arranged at one end of the transverse tappet, the other end of the transverse tappet is respectively connected with the second button and the third shaft gear, the second spring is arranged on the transverse tappet, the third shaft gear is further connected with the second button, and the second button is connected with the third spring.

With reference to the seventh possible implementation manner of the first aspect, an embodiment of the present invention provides an eighth possible implementation manner of the first aspect, wherein when the inner pointer rotates to press down the first button, the first spring moves downward, the transverse tappet moves to contact with the first button under the action of the second spring, the copper sheet is connected to the double parallel copper rings through the power line, the circuit is connected, and the fluid infusion pump starts to infuse fluid.

In a second aspect, an embodiment of the present invention further provides a liquid level measurement feedback system, including the first aspect of the liquid level measurement feedback apparatus.

The embodiment of the utility model provides a liquid level measurement feedback device and system, include: the automatic control device comprises a buoy, a rope, an automatic tightening device, a grade changing device and a signal feedback device; the buoy is connected with the automatic tightening device through a rope, the variable-level device is connected with the automatic tightening device in a kinematic pair mode, and the variable-level device is also connected with the signal feedback device; the buoy is used for measuring the change of the liquid level in real time; and the automatic tightening device is used for keeping the automatic tensioning state of the rope when the liquid level of the buoy changes, and transmitting the change of the liquid level to the signal feedback device through the grade changing device, so that the signal feedback device displays the change information of the liquid level, the change condition of the liquid level is measured and displayed in real time, and when the liquid level is lower, the liquid can be automatically supplemented.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of a liquid level measurement feedback device provided by an embodiment of the present invention;

FIG. 2 is a structural diagram of a liquid level measuring feedback device provided in an embodiment of the present invention;

fig. 3 is a schematic view of a float in the liquid level measurement feedback device provided in the embodiment of the present invention;

fig. 4 is a schematic view of an automatic tightening device in the liquid level measurement feedback device provided in the embodiment of the present invention;

fig. 5 is a side view a of an automatic tightening device in the liquid level measurement feedback device according to the embodiment of the present invention;

fig. 6 is a schematic view of a level-changing device in the liquid level measurement feedback device provided in the embodiment of the present invention;

FIG. 7 is a schematic view of a gear positioning mode in the liquid level measurement feedback device according to an embodiment of the present invention;

fig. 8 is a schematic view illustrating a kinematic pair connection in a liquid level measurement feedback device according to an embodiment of the present invention;

fig. 9 is a schematic diagram illustrating a kinematic pair mode detachment in the liquid level measurement feedback device according to an embodiment of the present invention;

fig. 10 is a schematic view of a signal feedback device in a liquid level measurement feedback device according to an embodiment of the present invention;

fig. 11 is a schematic view of an outer dial in the liquid level measurement feedback device provided in the embodiment of the present invention;

fig. 12 is a circuit diagram of an inner dial in the liquid level measurement feedback device provided by the embodiment of the present invention;

fig. 13 is a schematic view of an automatic replenishment switch in the liquid level measurement feedback device according to the embodiment of the present invention;

fig. 14 is an internal connection diagram of an automatic replenishment switch in the liquid level measurement feedback device provided by the embodiment of the present invention;

fig. 15 is a side view of an automatic replenishment switch B in the liquid level measurement feedback device according to the embodiment of the present invention.

Icon:

100-a buoy; 200-a rope; 300-an automatic tightening device; 310-an outer sleeve; 320-a coil spring; 330-spring buckle; 340-a rope reel; 400-a variable stage device; 410-a first shaft gear; 420-first step axis; 430-second step axis; 440-a first gear; 450-second shaft gear; 460-a second gear; 470-third step axis; 500-signal feedback means; 510-inner dial; 520-outer dial; 530-inner pointer; 531-track of motion of the top of the inner pointer; 540-outer pointer; 550-outer pointer transparent shield; 560-a fastening screw; 600-automatic replenishment switch; 610-a first button; 620-second button; 630-a power line; 640-double parallel copper rings; 650-copper sheet; 660-lateral tappet; 671-a first spring; 672-a second spring; 673-third spring; 680-a third shaft gear; 700-outer wall.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

To facilitate understanding of the present embodiment, the following detailed description will be given of embodiments of the present invention.

The first embodiment is as follows:

the embodiment of the utility model provides a level measurement feedback device, the device can be used for the measurement of engine oil pan liquid level, and the real-time measurement shows the situation of change of sending the oil pan liquid level, specifically, the embodiment of the utility model provides a level measurement feedback device includes: buoy, rope, automatic tightening device, step-changing device and signal feedback device.

Fig. 1 is the embodiment of the utility model provides a level measurement feedback device schematic diagram. Referring to fig. 1, there is shown a buoy 100, a rope 200, an automatic take-up device 300, a step-changing device 400 and a signal feedback device 500; wherein, the buoy 100 is connected with the automatic tightening device 300 through the rope 200, the step-changing device 400 is connected with the automatic tightening device 300 in a kinematic pair manner, and the step-changing device 400 is further connected with the signal feedback device 500.

The embodiment of the utility model provides a liquid level measurement feedback device, including buoy 100, rope 200, automatic tightening means 300, change level device 400 and signal feedback device 500, as shown in FIG. 2, still include outer wall 700, wherein, automatic tightening means 300, change level device 400 and signal feedback device 500 are surrounded by outer wall 700, and buoy 100 is outside at outer wall 700, and rope 200 is connected with automatic tightening means 300 through the aperture of outer wall 700. The buoy 100 is connected with the rope 200, the rope 200 is kept in a tightened state through the automatic tightening device 300, so that the buoy 100 is guaranteed to follow up the change of the measured liquid level in real time, the change of the liquid level is transmitted to the signal feedback device 500 through the grading device 400, the signal feedback device 500 is enabled to display the change information of the liquid level, and the change situation of the liquid level is measured and displayed in real time.

In order to facilitate understanding, the buoy 100 of the embodiment of the present invention is a hollow stainless steel floating ball, as shown in fig. 3, the outer diameter of the ball is 50mm, the thickness is 3mm, the weight is 0.165Kg, and the total volume is 65.42cm³The maximum buoyancy was 0.65N. In addition, the buoy 100 also satisfies that the gravity thereof is greater than the resilience force of the automatic tightening device 300 and is less than the sum of the maximum buoyancy of the buoy 100 and the resilience force of the automatic tightening device 300, so the design can ensure that when the liquid level descends, the buoy 100 descends along with the liquid level because the gravity is greater than the resilience force of the automatic tightening device 300, and the gravity of the buoy 100 is less than the sum of the maximum buoyancy of the buoy 100 and the resilience force of the automatic tightening device 300, so that the buoy 100 can float on the liquid level but does not depart from the liquid level, thereby ensuring the accuracy, effectiveness and reliability of measurement.

Further, when the buoy 100 descends with the liquid level, pulling the rope 200 to descend, the automatic tightening device 300 is used to maintain the rope 200 in an automatically tightened state. As shown in fig. 4, the automatic tightening device 300 includes an outer sleeve 310, a coil spring 320, a spring catch 330, and a rope reel 340, the rope reel 340 is connected to the rope 200, the spring catch 330 is disposed on the rope reel 340, the spring catch 330 is further connected to one end of the coil spring 320, the other end of the coil spring 320 is connected to the outer sleeve 310, and the outer sleeve 310 is connected to the shifting device 400 by means of a kinematic pair. Among them, the coil spring 320 is used as a power source, and as shown in fig. 5, the rope reel 340 can be rotated after the force is accumulated, so that the rope 200 is kept in a tightened state.

Specifically, when the liquid level is at the highest value, the coil spring 320 is in the normal state, and when the liquid level drops, the buoy 100 drops along with the liquid level, pulls the rope 200 to drop, drives the rope reel 340 to rotate, and the coil spring 320 starts to accumulate force, so that the rope reel 340 rotates to keep the rope 200 in the tightened state; when the liquid level rises, the tension of the rope 200 on the rope reel 340 is reduced, the spiral spring 320 starts to extend, and the rope reel 340 is driven to rotate, so that the rope 200 is always kept in a tightened state.

Further, the shifting apparatus 400 includes a first shaft gear 410, a first step shaft 420, a second step shaft 430, a first gear 440, a second shaft gear 450, a second gear 460, and a third step shaft 470; as shown in fig. 6, the first shaft gear 410 is fixed to the first step shaft 420, the second shaft gear 450 is fixed to the second step shaft 430, the first gear 440 is connected to the first step shaft 420 and the second step shaft 430, and the second gear 460 is connected to the second step shaft 430 and the third step shaft 470. Here, the first stepped shaft 420, the second stepped shaft 430 and the third stepped shaft 470 are all segmented stepped shafts, each segment of each stepped shaft has a different diameter, the first gear 440 and the second gear 460 are mounted on a shaft segment with a smaller diameter among the first stepped shaft 420, the second stepped shaft 430 and the third stepped shaft 470, and are connected in a manner as shown in fig. 7, and a shaft segment with a larger diameter among the first stepped shaft 420, the second stepped shaft 430 and the third stepped shaft 470 forms a wall-like manner, so that the lateral movement of the first gear 440 and the second gear 460 is limited.

Specifically, the step-changing device 400 uses the gear speed-changing principle to change the liquid level exceeding 1 meter, and after the liquid level is changed step by step through the gears, the liquid level is reduced to be the pointer information of which the upper rotation angle of the outer dial 520 in the signal feedback device 500 is less than 270 degrees, so that the change information of the liquid level is displayed through the outer dial 520. When the liquid level descends, the buoy 100 descends along with the liquid level, the rope 200 drives the rope winding wheel 340 to rotate, the rope winding wheel 340 is connected with the first step shaft 420 and has the same angular velocity, the radius of the first shaft gear 410 fixed on the first step shaft 420 is smaller, the linear velocity is lower, the first gear 440 connected with the first step shaft 420 has the same linear velocity as the first shaft gear 410, and the angular velocity of the first gear 440 is smaller than that of the first shaft gear 410 because the radius of the first gear 440 is larger than that of the first shaft gear 410. Therefore, at the same time, the first shaft gear 410 rotates one turn, and the first gear 440 rotates 0.36 turn. The second shaft gear 450 and the second gear 460 are also based on the same principle, and finally achieve a reduction ratio of 7:1 or more, that is, the rope reel 340 rotates once, and the outer pointer 540 on the outer dial 520 rotates 0.14 times.

For the convenience of understanding, the gear shift principle is illustrated here, taking the rope reel 340 with a diameter of 100mm, the first shaft gear 410 with a diameter of 100mm, the first gear 440 with a diameter of 28mm, the second shaft gear 450 with a diameter of 10mm, and the second gear 460 with a diameter of 25mm as an example, assuming that the liquid level drops by 1 meter, the rope reel 340 needs to rotate three times to release the rope 200 connected to the buoy 100, and when the rope reel 340 rotates three times, the first shaft gear 410 also rotates three times, but the first gear 440 rotates only 1.07 times. The second shaft gear 450 rotates only 1.07 times at the same angular speed as the first gear 440, and the second gear 460 is driven by the second shaft gear 450 to rotate 0.428 times, which is 154 degrees, less than half of the rotation on the outer dial 520, which is a stepwise transition from the first three times to the last less than half of the rotation.

Furthermore, the outer sleeve 310 is connected to the staging device 400 by means of a kinematic pair. Specifically, the outer sleeve 310 serves as an outer sliding bearing for supporting the first stepped shaft 420, and the load buoy 100 is light due to the low rotation speed of the gear step-by-step transition part, so that the cost can be reduced by using the outer sleeve 310 as the outer sliding bearing. The kinematic pair mode is shown in a coupled state when the outer sleeve 310 and the first stepped shaft 420 are in a positional relationship as shown in fig. 8, and in a disengaged state when the outer sleeve 310 and the first stepped shaft 420 are in a positional relationship as shown in fig. 9. In addition, in the kinematic pair system formed by the outer sleeve 310 and the first stepped shaft 420, lubricating oil is applied to ensure lubrication, and quenching and rust prevention are performed to improve the surface hardness of the kinematic pair system.

Further, the third step shaft 470 is connected to the signal feedback device 500. As shown in fig. 10, the signal feedback device 500 includes an inner dial 510, an outer dial 520, an inner pointer 530, and an outer pointer 540; an inner pointer 530 is disposed in the inner dial 510, and an outer pointer 540 is disposed in the outer dial 520; in addition, the signal feedback device 500 further comprises an outer pointer transparent shield 550, a fastening screw 560, wherein the outer pointer transparent shield 550 is disposed on the outer dial 520 for protecting the outer pointer 540; the fastening screw 560 is used to fasten the third step shaft 470, the inner dial 510, and the outer dial 520 to the outer wall 700, preventing slipping.

Specifically, the outer dial 520 is used for displaying the change information of the liquid level through the outer pointer 540, as shown in fig. 11, the change information of the liquid level is converted into the pointer information on the outer dial 520, and therefore a customer can conveniently know the liquid level information of the oil in the engine oil pan according to the pointing information of the outer pointer 540. In addition, the signal feedback device 500 further includes an LED indicator lamp that displays an electrical signal when the inner dial 510 converts the change information of the liquid level into the electrical signal through the inner pointer 530. As shown in fig. 12, the inner dial 510 adopts the working principle of a sliding rheostat, when the inner pointer 530 rotates with the change of the liquid level, the resistance in the line formed by the points a and b changes, the change information of the liquid level is converted into a resistance change signal in real time through the line and transmitted to the outer controller, and the controller controls the LED indicator lamp to display according to the change information of the liquid level, for example, when the liquid level is higher than a set value, the green light in the LED indicator lamp is normally on; when the liquid level is reduced to a set value, a yellow lamp in the LED indicator lamp is on; when the liquid level drops to be lower than a set value, a red light in the LED indicator light is on, alarm prompt information is generated, and the controller controls the alarm device to give out a ring according to the alarm prompt information to remind a user, so that the situation that the oil in an oil pan of the engine is too little to influence the user to use the engine is avoided.

Further, the controller is also used for starting the supply pump through the automatic supply switch 600 when the liquid level is reduced to be lower than the set value, so that the liquid level is increased to the set value, and the normal use of the engine is ensured. Specifically, as shown in fig. 13, the above-described automatic replenishment switch 600 includes a first button 610, a second button 620, a power supply line 630, a double parallel copper ring 640, a copper sheet 650, a lateral tappet 660, a first spring 671, a second spring 672, a third spring 673, and a third shaft gear 680; wherein, the first button 610 is also called as a first button jack, the lower portion thereof has teeth, the first button 610 is connected with one end of the double parallel copper ring 640, the other end of the double parallel copper ring 640 is connected with the first spring 671, as shown in fig. 14, the power line 630 is connected to both ends of the double parallel copper ring 640, the copper sheet 650 is arranged at one end of the transverse tappet 660, the other end of the transverse tappet 660 is respectively connected with the second button 620 and the third shaft gear 680, the second spring 672 is arranged on the transverse tappet 660, the third shaft gear 680 is further connected with the second button 620, and the second button 620 is connected with the third spring 673.

Specifically, when the liquid level drops, the third step shaft 470 rotates counterclockwise, the inner pointer 530 synchronously rotates to the first button 610 and presses down the first button 610, so as to compress the first spring 671 to move downward, at this time, the lateral tappet 660 has a movement trend towards the first button 610 under the pre-tightening force of the second spring 672, until the first spring 671 drops to a certain position, so that the lateral tappet 660 blocks the first button 610, at this time, the copper sheet 650 at the top of the lateral tappet 660 is connected with the double parallel copper rings 640, the circuit is connected, the controller controls the supply pump to start to supply liquid, and the liquid level rises accordingly.

Similarly, when the liquid level rises, the third stepped shaft 470 rotates clockwise, the inner pointer 530 synchronously rotates to the second button 620 and presses down the second button 620, as shown in fig. 15, the third shaft gear 680 connected thereto rotates clockwise as the second button 620 moves down, the lateral tappet 660 is connected to the second button 620 and the third shaft gear 680 respectively, so that the lateral tappet 660 moves to the right, the copper plate 650 at the top of the lateral tappet 660 moves away from the double parallel copper rings 640, the circuit is opened, and the first button 610 moves upward due to the action of the first spring 671, so that the circuit is prevented from being turned on again, and the liquid replenishment is completed. In addition, when the second button 620 moves downward and the third shaft gear 680 rotates clockwise as the second button 620 moves downward, the third spring 673 is compressed downward to complete the liquid replenishment, and when the liquid is replenished again through the automatic replenishment switch 600, the second button 620 moves upward by the third spring 673 and the third shaft gear 680 rotates counterclockwise as the second button 620 moves upward, so that the lateral tappet 660 moves leftward as the second button 620 moves upward to complete the liquid replenishment.

Further, the embodiment of the utility model provides a still provide a level measurement feedback system, including foretell level measurement feedback device.

The embodiment of the utility model provides a liquid level measurement feedback device and system, include: the automatic control device comprises a buoy, a rope, an automatic tightening device, a grade changing device and a signal feedback device; the buoy is connected with the automatic tightening device through a rope, the variable-level device is connected with the automatic tightening device in a kinematic pair mode, and the variable-level device is also connected with the signal feedback device; the buoy is used for measuring the change of the liquid level in real time; and the automatic tightening device is used for keeping the automatic tensioning state of the rope when the liquid level of the buoy changes on the liquid level, and transmitting the change of the liquid level to the signal feedback device through the grade changing device, so that the signal feedback device displays the change information of the liquid level, the change condition of the liquid level is measured and displayed in real time, and when the liquid level is lower, the liquid can be automatically supplemented.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in the embodiments provided in the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the technical solution of the present invention, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still modify or easily conceive of changes in the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A liquid level measurement feedback device, comprising: the automatic rope tightening device comprises a buoy (100), a rope (200), an automatic tightening device (300), a step-changing device (400) and a signal feedback device (500);

the buoy (100) is connected with the automatic tightening device (300) through the rope (200), the step-changing device (400) is connected with the automatic tightening device (300) in a kinematic pair mode, and the step-changing device (400) is further connected with the signal feedback device (500);

the buoy (100) is used for measuring the change of the liquid level in real time;

the automatic tightening device (300) is used for keeping the rope (200) in an automatic tensioning state when the liquid level of the buoy (100) at the liquid level changes, and transmitting the change of the liquid level to the signal feedback device (500) through the grading device (400), so that the signal feedback device (500) displays the change information of the liquid level.

2. The device according to claim 1, characterized in that the float (100) is a spherical ball float, the weight of the float (100) being greater than the resilience of the automatic tightening device (300) and less than the sum of the maximum buoyancy of the float (100) and the resilience of the automatic tightening device (300).

3. The device according to claim 1, characterized in that said automatic tightening device (300) comprises an outer sleeve (310), a helical spring (320), a spring catch (330) and a rope reel (340), said rope reel (340) being connected to said rope (200), said spring catch (330) being arranged on said rope reel (340), said spring catch (330) being further connected to one end of said helical spring (320), the other end of said helical spring (320) being connected to said outer sleeve (310), said outer sleeve (310) being connected to said step-changing device (400) by means of said kinematic pair.

4. The device of claim 3, wherein the staging device (400) comprises a first shaft gear (410), a first stepped shaft (420), a second stepped shaft (430), a first gear (440), a second shaft gear (450), a second gear (460), and a third stepped shaft (470); the first shaft gear (410) is fixed on the first stepped shaft (420), the second shaft gear (450) is fixed on the second stepped shaft (430), the first gear (440) is respectively connected with the first stepped shaft (420) and the second stepped shaft (430), and the second gear (460) is respectively connected with the second stepped shaft (430) and the third stepped shaft (470).

5. The device according to claim 4, characterized in that the first step axis (420) constitutes a kinematic pair with the outer sleeve (310), the third step axis (470) being connected with the signal feedback device (500).

6. The device according to claim 5, characterized in that said signal feedback means (500) comprise an inner dial (510), an outer dial (520), an inner pointer (530) and an outer pointer (540); the inner pointer (530) is disposed in the inner dial (510), the outer pointer (540) is disposed in the outer dial (520);

the outer dial (520) is used for displaying the change information of the liquid level through the outer pointer (540);

the inner dial (510) is used for converting the change information of the liquid level into an electric signal through the inner pointer (530) and displaying the electric signal.

7. The device of claim 6, wherein said signal feedback device (500) further comprises an LED indicator light for displaying said electrical signal.

8. The device of claim 6, further comprising an auto-replenishment switch (600), the auto-replenishment switch (600) comprising a first button (610), a second button (620), a power cord (630), a double parallel copper ring (640), a copper sheet (650), a lateral tappet (660), a first spring (671), a second spring (672), a third spring (673), and a third shaft gear (680);

the first button (610) is connected with one end of the double parallel copper ring (640), the other end of the double parallel copper ring (640) is connected with the first spring (671), the power line (630) is connected to two ends of the double parallel copper ring (640), the copper sheet (650) is arranged at one end of the transverse tappet (660), the other end of the transverse tappet (660) is respectively connected with the second button (620) and the third shaft gear (680), the second spring (672) is arranged on the transverse tappet (660), the third shaft gear (680) is further connected with the second button (620), and the second button (620) is connected with the third spring (673).

9. The device according to claim 8, characterized in that when the inner pointer (530) rotates to press down the first button (610), the first spring (671) moves downwards, the transverse tappet (660) moves to be in contact with the first button (610) under the action of the second spring (672), the copper sheet (650) is connected with the double parallel copper rings (640) through the power line (630), the circuit is conducted, and the fluid replacement pump starts fluid replacement.

10. A level measurement feedback system comprising a level measurement feedback device as claimed in any one of claims 1 to 9.