High-low liquid level alarm device of storage tank

Abstract

The utility model belongs to the technical field of high-low liquid level alarm devices, and relates to a high-low liquid level alarm device of a storage tank, which comprises a liquid storage tank, a tank cover is arranged on the liquid storage tank, the top end of the liquid storage tank is connected with a liquid conveying pipe, the bottom end of the liquid storage tank is connected with a liquid discharging pipe, and a floating rod penetrates through the interior of the tank cover in a sliding manner. When the liquid level reaches a preset upper limit value, the third trapezoidal sliding block extrudes the fourth trapezoidal sliding block to quickly trigger the loudspeaker to give an alarm, and when the liquid level reaches a preset lower limit value, the first trapezoidal sliding block and the second trapezoidal sliding block extrude to quickly trigger the loudspeaker to give an alarm. Meanwhile, the process of triggering the horn to give an alarm is carried out in the area, away from the liquid, of the liquid storage tank, so that the phenomenon that when the position sensor is matched with the controller to trigger the horn to give the alarm, the horn is difficult to trigger to give the alarm due to damage of the position sensor is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to high low liquid level alarm device technical field relates to a high low liquid level alarm device of storage tank. BACKGROUND

[0002] The high low liquid level alarm device of storage tank is a device for monitoring the liquid level in the storage tank and sending an alarm signal, which commonly uses a position sensor arranged inside the float ball to monitor the liquid level. When the liquid level is too high or too low, the position sensor detects the change in the position of the float ball and transmits the position signal to the controller. At this time, the controller will make a judgment according to the preset upper and lower limits of the liquid level. When the liquid level exceeds the preset upper or lower limit, the controller will control the alarm to sound an alarm to remind the operator to pay attention to the abnormal liquid level.

[0003] When monitoring the liquid level, the float ball is in contact with the liquid for a long time. When the monitored liquid is a corrosive liquid, the position sensor is prone to damage over a long period of time. When the position sensor is damaged and cannot work normally, it is difficult to transmit the information of the excessively high or low liquid level to the controller, and thus it is not easy to trigger the alarm to sound an alarm and remind the operator to pay attention to the abnormal liquid level. UTILITY MODEL CONTENTS

[0004] The utility model solves the technical problems that when monitoring the liquid level, the float ball is in contact with the liquid for a long time. When the monitored liquid is a corrosive liquid, the position sensor is prone to damage over a long period of time. When the position sensor is damaged and cannot work normally, it is difficult to transmit the information of the excessively high or low liquid level to the controller, and thus it is not easy to trigger the alarm to sound an alarm and remind the operator to pay attention to the abnormal liquid level.

[0005] The high low liquid level alarm device of the utility model contents comprises a liquid storage tank, a tank cover is arranged on the liquid storage tank, a liquid delivery pipe is connected to the top end of the liquid storage tank, a liquid discharge pipe is connected to the bottom end of the liquid storage tank, a float rod is slidably arranged in the tank cover, a float plate is arranged on one end of the float rod inside the liquid discharge pipe, and the outer diameter of the float plate is matched with the inner diameter of the liquid storage tank.

[0006] An alarm assembly is arranged on the liquid storage tank, and the alarm assembly is used in cooperation with the float plate and the float rod.

[0007] The alarm assembly comprises a first trapezoidal sliding block, a loudspeaker and a support frame, the first trapezoidal sliding block is fixedly connected to one end of the float rod away from the float plate, the loudspeaker and the support frame are correspondingly arranged on the tank cover, a start button is arranged on one side of the loudspeaker, a push rod is slidably arranged in the support frame, a push plate opposite to the start button is fixedly connected to one end of the push rod, a connecting plate is fixedly connected to the other end of the push rod away from the push plate, and a second trapezoidal sliding block is fixedly connected to one end of the connecting plate.

[0008] The alarm assembly further comprises a sliding groove and a third trapezoidal slider, the sliding groove is arranged in the inner part of the tank cover, the third trapezoidal slider is fixedly connected to one end of the float rod close to the floating plate, the fourth trapezoidal slider is fixedly connected to one end of the connecting plate away from the second trapezoidal slider, and the baffle is fixedly connected to the middle part of the connecting plate and is in sliding connection with the inner part of the sliding groove.

[0009] The connecting rod is fixedly connected to the floating plate away from the floating plate, the rack is arranged at one end of the connecting rod, the liquid adding pipe is arranged at one side of the top end of the liquid storage tank, the valve is arranged on the liquid adding pipe, and the gear is arranged at the rotating handle of the valve and is in meshing connection with the rack.

[0010] The floating plate is provided with a plurality of filter holes at the edge, the floating ring is connected to one end of the floating plate close to the float rod and is in sliding connection with the inner wall of the liquid storage tank, and the air bag is arranged at one end of the floating plate away from the float rod.

[0011] The bottom of the liquid storage tank is provided with a rubber pad.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: when the liquid level reaches the preset upper limit value, the fourth trapezoidal slider is extruded by the third trapezoidal slider, so that the alarm of the horn can be triggered quickly, when the liquid level reaches the preset lower limit value, the first trapezoidal slider and the second trapezoidal slider are extruded, so that the alarm of the horn can be triggered quickly, the operation personnel are reminded to pay attention to the abnormal liquid level, and the process of triggering the alarm of the horn is carried out in the area away from the liquid of the liquid storage tank, so that the phenomenon that the horn cannot be triggered to alarm due to damage of the position sensor when the position sensor cooperates with the controller to trigger the alarm of the horn is reduced.

[0013] Through meshing operation between the rack and the gear, the valve can be controlled to open and close, a certain volume of liquid can be supplemented in the liquid storage tank, and the normal operation of the equipment connected and cooperated with the liquid storage tank is not affected due to the low liquid level in the liquid storage tank. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the utility model, the drawings needed in the embodiment description will be briefly introduced, and obviously, the drawings in the following description are some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0015] Figure 1 It is the complete structure schematic view of the utility model.

[0016] Figure 2 It is the sectional view of the utility model.

[0017] Figure 3 It is the utility model Figure 2A magnified view of part A.

[0018] Figure 4 This is a cross-sectional view of the liquid storage tank of this utility model.

[0019] Figure 5 This is a schematic diagram of the structure of the floating plate of this utility model.

[0020] In the diagram: 1. Storage tank; 2. Tank lid; 3. Infusion pipe; 4. Drain pipe; 5. Float; 6. Float plate; 7. First trapezoidal slider; 8. Horn; 9. Start button; 10. Support frame; 11. Push rod; 12. Push plate; 13. Connecting plate; 14. Second trapezoidal slider; 15. Third trapezoidal slider; 16. Fourth trapezoidal slider; 17. Slide groove; 18. Baffle; 19. Connecting rod; 20. Rack; 21. Filling pipe; 22. Valve; 23. Gear; 24. Filter hole; 25. Float ring; 26. Airbag. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in 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 present utility model and are not intended to limit the present utility model.

[0022] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0023] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] Example 1

[0026] like Figures 1-5 As shown, a high / low liquid level alarm device for a storage tank includes a storage tank 1 for storing liquid. The storage tank 1 is provided with a tank cover 2 for sealing the storage tank 1, which is connected to the storage tank 1 by a cross screw. The contact surface between the two is provided with a sealing element, such as a sealing ring. The top of the storage tank 1 is connected to a liquid inlet pipe 3 for inputting liquid into the storage tank 1. The bottom of the storage tank 1 is connected to a drain pipe 4 for draining liquid from the storage tank 1. A float rod 5 slides through the inside of the tank cover 2 and moves up and down with changes in liquid level. A float plate 6 is installed at one end of the float rod 5 inside the drain pipe 4. The outer diameter of the float plate 6 fits the inner diameter of the storage tank 1 and moves up and down with changes in liquid level, driving the float rod 5 to move.

[0027] An alarm assembly is installed on the liquid storage tank 1 and is used in conjunction with the float 6 and the float 5.

[0028] Example 2

[0029] like Figures 1-5 As shown, the alarm assembly includes a first trapezoidal slider 7, a horn 8, and a support frame 10. The first trapezoidal slider 7 is fixedly connected to the end of the float 5 away from the float plate 6. The horn 8 and the support frame 10 are respectively installed on the can lid 2. A start button 9 is provided on one side of the horn 8. The start button 9 is a common existing structure and has its own reset function. A push rod 11 slides through the support frame 10. One end of the push rod 11 is fixedly connected to a push plate 12 opposite to the position of the start button 9. The end of the push rod 11 away from the push plate 12 is fixedly connected to a connecting plate 13. One end of the connecting plate 13 is fixedly connected to a second trapezoidal slider 14.

[0030] like Figures 1-5 As shown, the alarm assembly also includes a chute 17 and a third trapezoidal slider 15. The chute 17 is opened inside the tank cover 2 and provides moving space for the connecting plate 13. The third trapezoidal slider 15 is fixed to one end of the float 5 near the float plate 6. A fourth trapezoidal slider 16 is fixed to one end of the connecting plate 13 away from the second trapezoidal slider 14. A baffle 18 is fixed to the middle of the connecting plate 13 and slidably connected to the inside of the chute 17. The baffle 18 is used to shield the chute 17 and reduce dust from entering the liquid storage tank 1.

[0031] During operation, liquid medium can be delivered into the storage tank 1 through the infusion pipe 3. During this process, the liquid pushes the float 5 and float plate 6 to move continuously towards the tank cover 2 due to buoyancy. When the liquid level reaches the preset upper limit value, the third trapezoidal slider 15 contacts the inclined surface of the fourth trapezoidal slider 16 and squeezes the fourth trapezoidal slider 16 to move continuously towards the horn 8. At the same time, it pushes the push rod 11 and push plate 12 to move towards the start button 9, presses the start button 9, and triggers the horn 8 to sound an alarm to remind the operator to pay attention to the abnormal liquid level.

[0032] When the liquid is discharged through the drain pipe 4 until the lower limit of the liquid level is reached, during this process, the float 5 and float plate 6 continue to move away from the tank cover 2 under the action of gravity, and the first trapezoidal slider 7 contacts the inclined surface of the second trapezoidal slider 14, and squeezes the fourth trapezoidal slider 16 to move continuously towards the horn 8. At the same time, it pushes the push rod 11 and push plate 12 to move towards the start button 9, presses the start button 9, and triggers the horn 8 to sound an alarm to remind the operator to pay attention to the abnormal liquid level.

[0033] The process described above, in which the horn 8 is triggered when the liquid level reaches the upper or lower limit, is carried out in an area of ​​the storage tank 1 that is far away from the liquid. This is to reduce the possibility that the horn 8 may fail to trigger when the position sensor is damaged, thus reducing the likelihood of the position sensor being damaged when the horn 8 is triggered in conjunction with the controller.

[0034] Example 3

[0035] like Figures 1-5 As shown, a connecting rod 19 is fixed to the float 5 away from the float plate 6. A rack 20 is installed at one end of the connecting rod 19. A filling pipe 21 is provided on one side of the top of the liquid storage tank 1. A valve 22 is provided on the filling pipe 21. A gear 23 that meshes with the rack 20 is installed at the handle of the valve 22.

[0036] During operation, when liquid is discharged through drain pipe 4 until the lower limit of liquid level is reached, rack 20 moves continuously away from tank cover 2 along with float 5, causing rack 20 to mesh with gear 23. During this process, the meshing drives gear 23 to rotate, which in turn drives valve 22 to rotate and open valve 22, allowing liquid to enter the storage tank 1 through fill pipe 21, replenishing a certain volume of liquid into the storage tank 1 to reduce the impact of low liquid level in the storage tank 1 on the normal operation of equipment connected to and used with the storage tank 1.

[0037] As the filling pipe 21 replenishes the liquid inside the storage tank 1, when the liquid level drops below the lower limit, the float 5 moves continuously towards the tank cover 2 via the float plate 6, which in turn drives the gear 23 to rotate through the meshing of the rack 20, thereby closing the valve 22.

[0038] Example 4

[0039] like Figures 1-5 As shown, the float plate 6 has multiple sets of filter holes 24 on its edge. The end of the float plate 6 near the float rod 5 is connected to a float ring 25 that slides with the inner wall of the storage tank 1 to improve the stability of the float plate 6 sliding with the inner wall of the storage tank 1. An air bag 26 is installed at the end of the float plate 6 away from the float rod 5 to improve the buoyancy of the float plate 6.

[0040] like Figure 1 As shown, the bottom of the liquid storage tank 1 is equipped with a rubber pad to improve the stability of the device when it is placed on the ground.

[0041] During operation, the liquid inside the storage tank 1 can be simply filtered through the filter hole 24. At the same time, the tank cover 2 can be opened by removing the Phillips screw with a screwdriver, and the impurities intercepted on the float plate 6 can be removed.

[0042] The utility model provides a kind of practical new use process as follows: liquid medium can be transported to the inside of storage tank 1 by infusion tube 3, in this process, liquid is continuously moved by buoyancy to the direction close to tank cover 2 by float rod 5 and float plate 6, when liquid level reaches preset upper limit value, third trapezoidal slider 15 and fourth trapezoidal slider 16 are contacted by inclined surface at this time, and fourth trapezoidal slider 16 is continuously moved to the direction of horn 8 by extrusion, simultaneously push rod 11 and push plate 12 are moved to the direction of start button 9 by pushing, start button 9 is pressed, and horn 8 is triggered to alarm, to remind operator to pay attention to liquid level anomaly, when liquid is discharged by liquid discharge pipe 4, until reaching lower limit value of liquid level, in this process, float rod 5 and float plate 6 are continuously moved to the direction away from tank cover 2 by gravity, and first trapezoidal slider 7 and second trapezoidal slider 14 are contacted by inclined surface, and fourth trapezoidal slider 16 is continuously moved to the direction of horn 8 by extrusion, simultaneously push rod 11 and push plate 12 are moved to the direction of start button 9 by pushing, start button 9 is pressed, and horn 8 is triggered to alarm, to remind operator to pay attention to liquid level anomaly.

[0043] The above disclosed preferred embodiments of the utility model are only used to help the description of the utility model. The preferred embodiments do not describe all the details, and the utility model is not limited to the specific implementation described. Obviously, according to the content of the specification, many modifications and changes can be made. The description selects and specifically describes these embodiments, in order to better explain the principle and practical application of the utility model, so that the skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the whole scope and equivalents.

Claims

1. A high-low level alarm device for a storage tank, characterized by: The utility model provides a liquid storage tank with alarm function, which comprises a liquid storage tank (1), a tank cover (2) arranged on the liquid storage tank (1), a liquid outlet pipe (4) arranged at the bottom of the liquid storage tank (1), a liquid inlet pipe (21) arranged at the top of the liquid storage tank (1), a float rod (5) slidably arranged in the tank cover (2), a float plate (6) arranged at one end of the float rod (5) inside the liquid outlet pipe (4), a first trapezoidal sliding block (7) fixedly connected to the other end of the float rod (5), a loudspeaker (8) and a support frame (10) arranged on the tank cover (2), a push rod (11) slidably arranged in the support frame (10), a push plate (12) fixedly connected to one end of the push rod (11), a connecting plate (13) fixedly connected to the other end of the push rod (11), a second trapezoidal sliding block (14) fixedly connected to one end of the connecting plate (13), a third trapezoidal sliding block (15) fixedly connected to the other end of the float rod (5) close to the float plate (6), a fourth trapezoidal sliding block (16) fixedly connected to the other end of the connecting plate (13) away from the second trapezoidal sliding block (14), a baffle (18) fixedly connected to the middle of the connecting plate (13), a slide groove (17) arranged in the tank cover (2), a plurality of filter holes (24) arranged on the edge of the float plate (6), a rubber pad arranged at the bottom of the liquid storage tank (1), a float ring (25) arranged at one end of the float plate (6) close to the float rod (5), and an air bag (26) arranged at the other end of the float plate (6) away from the float rod (5). An alarm assembly is arranged on the liquid storage tank (1) and used in cooperation with the float plate (6) and the float rod (5).

2. A high-low level alarm device for a storage tank as defined in claim 1, characterized in that: The alarm assembly comprises the first trapezoidal sliding block (7), the loudspeaker (8), the support frame (10), the push rod (11), the push plate (12), the connecting plate (13), the second trapezoidal sliding block (14), the third trapezoidal sliding block (15), the fourth trapezoidal sliding block (16), the baffle (18), the slide groove (17), the plurality of filter holes (24), the rubber pad, the float ring (25), and the air bag (26).

3. A high-low level alarm device for a storage tank as defined in claim 2, wherein: The alarm assembly further comprises the slide groove (17) and the third trapezoidal sliding block (15).

4. The high-low level alarm apparatus for a storage tank according to claim 1, characterized by: The float rod (5) is fixedly connected with a connecting rod (19) away from the float plate (6), one end of the connecting rod (19) is provided with a rack (20), one side of the top of the liquid storage tank (1) is provided with the liquid inlet pipe (21), the liquid inlet pipe (21) is provided with a valve (22), a gear (23) engaged with the rack (20) is arranged at the rotating handle of the valve (22).

5. The high-low level alarm apparatus for a storage tank according to claim 1, characterized by: The float plate (6) is provided with a plurality of filter holes (24) at the edge, one end of the float plate (6) close to the float rod (5) is connected with a float ring (25) slidably connected with the inner wall of the liquid storage tank (1), and the other end of the float plate (6) away from the float rod (5) is provided with an air bag (26).

6. The high-low level alarm apparatus for a storage tank according to claim 1, characterized by: The bottom of the liquid storage tank (1) is provided with a rubber pad.

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