Static pressure type liquid level sensor

Abstract

The utility model relates to a static pressure type liquid level sensor which comprises an instrument, a wire and a probe body. The instrument and the wire are in butt joint through a butt joint piece, and the butt joint piece is installed at a designated position through a support. A mounting seat is mounted outside the probe body, a butt-joint hole is formed in the peripheral surface of the surface of the mounting seat, and a hollow cylinder is arranged in the butt-joint hole in a telescopic movement manner; and the top end of the butt joint hole is in butt joint with an anti-pressing pipe, the top end of the anti-pressing pipe is in butt joint with an adjusting assembly, and the side, away from the anti-pressing pipe, of the adjusting assembly is in butt joint with an extraction pipe. The distance between the bottom end of the probe body and the suction cup is adjusted by unscrewing the nut and moving the position of the hollow cylinder, when the distance is adjusted to a proper position, the nut is screwed down, so that the hollow cylinder and the designated position in the butt joint hole are limited, and when the probe body is installed to the designated position along with the hollow cylinder, the distance of the bottom end of the probe body can be adjusted. And blockage caused by excessive pollutants is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of water level monitoring, and in particular relates to a static pressure type liquid level sensor. Background Art

[0002] The principle of static pressure level sensor is mainly based on the measurement of liquid static pressure. When the level transmitter is put into a certain depth in the measured liquid, the pressure on the liquid surface of the sensor can be calculated by the formula Ρ = ρgH + Po, where P is the pressure on the liquid surface of the transmitter, ρ is the density of the measured liquid, g is the local gravity acceleration, Po is the atmospheric pressure on the liquid surface, and H is the depth of the transmitter put into the liquid;

[0003] In sewage treatment pools, static pressure level sensors are often used. First, the probe of the static pressure level sensor is placed at the bottom of the treatment pool. However, there are a lot of impurities in the sewage pool. These impurities will sink to the bottom due to the influence of density. When the bottom of the probe is too low, it will be affected by these impurities and cause blockage, affecting the monitoring results. In addition, the flow of water into the sewage pool will be sometimes fast and sometimes slow. When the water flow is too fast, the probe will move, which will lead to low accuracy of the monitoring results.

[0004] In view of this, a static pressure liquid level sensor is proposed. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] In view of the following technical problems in the prior art: In sewage treatment pools, static pressure liquid level sensors are often used. First, the probe of the static pressure liquid level sensor is placed at the bottom of the treatment pool. However, there are a large number of impurities in the sewage pool. These impurities will sink to the bottom due to the influence of density. When the bottom of the probe is too low, it will be affected by these impurities and cause blockage, affecting the monitoring results. In addition, the flow of water into the sewage pool will be sometimes fast and sometimes slow. When the water flow is too fast, the probe will move, which will result in low accuracy of the monitoring results.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a static pressure liquid level sensor, comprising an instrument, a wire and a probe body; the instrument and the wire are connected to each other through a docking piece, wherein the docking piece is installed at a designated position through a bracket; a mounting seat is installed outside the probe body, a docking hole is provided on the outer peripheral surface of the mounting seat, and a hollow cylinder is telescopically moved in the docking hole; a pressure-proof tube is connected to the top end of the docking hole, an adjustment component is connected to the top end of the pressure-proof tube, and an extraction tube is connected to the side of the adjustment component away from the pressure-proof tube; the adjustment component comprises a vent plate 1 and a vent plate 2.

[0008] As an optimal technical solution for the static pressure liquid level sensor, a guide channel is provided on the outer side of the mounting seat, and the guide channel is communicated with the docking hole. A bolt is provided on the outer peripheral wall of the hollow cylinder, and the bolt is through-connected with the guide channel to prevent the hollow cylinder from being selected when it is extended or retracted. One end of the bolt extending out of the guide channel is externally threaded with a nut, and when the nut is tightened, the hollow cylinder can be moved to a specified position for locking, and a suction cup is docked at the bottom end of the hollow cylinder.

[0009] As a preferred technical solution for the static pressure liquid level sensor, a tightening belt is provided outside the anti-pressure tube, wherein the tightening belt is used to limit the position of the anti-pressure tube and the wire to prevent the anti-pressure tube from being scattered.

[0010] As a preferred technical solution for the static pressure liquid level sensor, the vent disc one and the vent disc two are rotatably connected, the inner edge of the vent disc one is fixedly connected with semi-circular disc one and semi-circular plate one, the inner edge of the vent disc two is fixedly connected with semi-circular disc two and semi-circular plate two, wherein semi-circular disc one and semi-circular plate one are combined into one disc, and semi-circular disc two and semi-circular plate two are combined into one disc, and when semi-circular disc two is misaligned with semi-circular disc one, the gas on both sides cannot pass through the middle.

[0011] As a preferred technical solution for the static pressure liquid level sensor, a through hole 1 is provided on the surface of the semicircular plate 1, and a through hole 2 is provided on the surface of the semicircular plate 2, wherein the through hole 1 is used for docking the pressure-proof tube, and the through hole 2 is used for docking the extraction tube.

[0012] As a preferred technical solution for the static pressure liquid level sensor, a guide groove is provided on the edge of one side of the vent disk 1 facing the vent disk 2, and a guide block is fixedly installed on the side of the vent disk 2 facing the vent disk 1. The guide block slides in the guide groove, and under the action of the guide groove, the rotation range of the vent disk 2 can be limited.

[0013] As an optimal technical solution for the static pressure liquid level sensor, positive electrode blocks are arranged at the inner edges of both ends of the guide groove, and negative electrode blocks are arranged at the outer edges of both ends of the guide block. The positive electrode block and the negative electrode block are attracted to each other by their opposite poles, and can play a limiting effect when the guide blocks are at the two end positions of the guide groove.

[0014] Beneficial effects of the present invention:

[0015] 1. Loosen the nut and move the position of the hollow tube to adjust the distance between the bottom end of the probe body and the suction cup. When it is adjusted to the appropriate position, tighten the nut to limit the designated position of the hollow tube and the docking hole. When the probe body is installed to the designated position with the hollow tube, the distance at the bottom end of the probe body can be adjusted to avoid blockage caused by excessive pollutants.

[0016] 2. Connect the suction cup to the bottom of the position to be monitored. First, the suction cup fits against the bottom wall. At this time, rotate the vent plate 2. When the guide block slides to the inside of the other end of the guide groove, the positions of semicircular plate 1 and semicircular plate 2 correspond. At this time, the gas can be extracted by the extraction tube. At this time, the suction cup is in a vacuum state, which can strengthen the suction force and reverse the vent plate 2 to reset it. At this time, semicircular plate 2 and semicircular plate 1 are misaligned, and the gas is blocked to ensure that the suction cup is always in a vacuum state. At this time, the probe body is positioned at the specified position with the suction cup to avoid shaking caused by excessive water flow, thereby improving the accuracy of the monitoring results.

[0017] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 For the present invention Figure 1 Partial diagram Figure 1 .

[0021] Figure 3 For the present invention Figure 1 Partial diagram Figure 2 .

[0022] Figure 4 It is a schematic diagram of the mounting seat structure of the present invention.

[0023] Figure 5 It is a schematic diagram of the structure of the regulating component of the present invention.

[0024] Figure 6 It is a schematic diagram of the structure of the ventilation plate 2 of the present invention.

[0025] Figure 7 It is a cross-sectional schematic diagram of the ventilation disk of the present invention.

[0026] Figure 8 The cutaway diagram of the adjustment assembly of the present invention is shown in FIG. Figure 1 .

[0027] Fig. 9 The cutaway diagram of the adjustment assembly of the present invention is shown in FIG. Figure 2 .

[0028] Reference numerals:

[0029] 100. Instrument; 101. Docking piece; 102. Wire; 103. Probe body; 200. Anti-pressure tube; 201. Fastening belt; 202. Extraction tube; 300. Adjustment assembly; 301. Ventilation disk one; 302. Ventilation disk two; 303. Semicircular disk one; 304. Semicircular disk two; 305. Semicircular plate one; 306. Through hole one; 307. Semicircular plate two; 308. Through hole two; 309. Guide groove; 310. Positive block; 311. Guide block; 312. Negative block; 400. Mounting seat; 401. Docking hole; 402. Hollow cylinder; 403. Guide channel; 404. Bolt; 405. Nut; 406. Suction cup. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0033] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0034] Example 1

[0035] Reference Figures 1 to 4 , which is the first embodiment of the present invention, provides a static pressure liquid level sensor, including a meter 100, a wire 102 and a probe body 103; the meter 100 and the wire 102 are connected via a docking piece 101, wherein the docking piece 101 is installed at a designated position via a bracket;

[0036] Specifically, a mounting seat 400 is installed outside the probe body 103, and a docking hole 401 is provided on the outer peripheral surface of the surface of the mounting seat 400, and a hollow cylinder 402 is telescopically movable in the docking hole 401; a guide channel 403 is provided on the outer side of the mounting seat 400, and the guide channel 403 is communicated with the docking hole 401, and a bolt 404 is provided on the outer peripheral wall of the hollow cylinder 402, and the bolt 404 is connected with the guide channel 403 through the outer thread to prevent the hollow cylinder 402 from being selected when it is telescoped, and a nut 405 is externally threaded on one end of the bolt 404 extending out of the guide channel 403, and when the nut 405 is tightened, the hollow cylinder 402 can be moved to a specified position for locking, and a suction cup 406 is docked at the bottom end of the hollow cylinder 402;

[0037] Specifically, the top end of the docking hole 401 is docked with the anti-pressure tube 200, the top end of the anti-pressure tube 200 is docked with the adjusting component 300, and the side of the adjusting component 300 away from the anti-pressure tube 200 is docked with the extraction tube 202; a fastening belt 201 is arranged outside the anti-pressure tube 200, wherein the fastening belt 201 is used to limit the position of the anti-pressure tube 200 and the wire 102 to prevent the anti-pressure tube 200 from being scattered.

[0038] Through this implementation, it can be achieved that: the nut 405 is loosened and the position of the hollow tube 402 is moved to adjust the distance between the bottom end of the probe body 103 and the suction cup 406; when adjusted to a suitable position, the nut 405 is tightened to limit the hollow tube 402 and the designated position in the docking hole 401; when the probe body 103 is installed to the designated position along with the hollow tube 402, the distance at the bottom end of the probe body 103 can be adjusted to avoid blockage caused by excessive pollutants.

[0039] Example 2

[0040] Reference Figure 3 , 5, 6, 7, 8 and 9 show the second embodiment of the present invention, which is different from the previous embodiment in that: the adjustment component 300 includes a vent disc 1 301 and a vent disc 2 302; the vent disc 1 301 and the vent disc 2 302 are rotatably connected, the inner edge of the vent disc 1 301 is fixedly connected with a semi-circular disc 1 303 and a semi-circular plate 1 305, and the inner edge of the vent disc 2 302 is fixedly connected with a semi-circular disc 2 304 and a semi-circular plate 2 307, wherein the semi-circular disc 1 303 and the semi-circular plate 1 305 are combined into one disc, and the semi-circular disc 2 304 and the semi-circular plate 2 307 are combined into one disc, and when the semi-circular disc 2 304 is misaligned with the semi-circular disc 1 303, the gases on both sides cannot pass through the middle.

[0041] Specifically, a through hole 1 306 is provided on the surface of the semicircular plate 1 305, and a through hole 2 308 is provided on the surface of the semicircular plate 2 307, wherein the through hole 1 306 is used for docking the pressure-proof tube 200, and the through hole 2 308 is used for docking the extraction tube 202; a guide groove 309 is provided on the edge of one side of the vent plate 1 301 facing the vent plate 2 302, and a guide block 311 is fixedly installed on one side of the vent plate 2 302 facing the vent plate 1 301, and the guide block 311 slides in the guide groove 309. Under the action of the guide groove 309, the rotation range of the ventilation disk 302 can be limited. In order to prevent the ventilation disk 1 301 and the ventilation disk 2 302 from falling off, the shape of the guide block 311 can be T-shaped, etc.; positive electrode blocks 310 are arranged at the inner edges of both ends of the guide groove 309, and negative electrode blocks 312 are arranged on the outer edges of both ends of the guide block 311. The positive electrode blocks 310 and the negative electrode blocks 312 attract each other with opposite poles, and when the guide blocks 311 are at the two end positions of the guide groove 309, they can play a limiting effect.

[0042] Through this implementation, it can be achieved that: the suction cup 406 is docked with the bottom of the position to be monitored, first the suction cup 406 is fitted with the bottom wall, at this time, the ventilation disk 2 302 is rotated, and when the guide block 311 slides to the inside of the other end of the guide groove 309, the semicircular plate 1 305 and the semicircular plate 2 307 correspond to each other, and the gas can be extracted by the extraction tube 202. At this time, the suction cup 406 is in a vacuum state, which can strengthen the suction force, and the ventilation disk 2 302 is reversed and reset. At this time, the semicircular disk 2 304 is misaligned with the semicircular disk 1 303, and the gas is blocked, ensuring that the suction cup 406 is always in a vacuum state. At this time, the probe body 103 is positioned at the specified position with the suction cup 406, which can avoid shaking caused by excessive water flow, thereby improving the accuracy of the monitoring results.

[0043] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. Static pressure liquid level sensor, characterized by: It comprises an instrument (100), a wire (102) and a probe body (103); The instrument (100) and the conductor (102) are butt-jointed via a butt-jointing piece (101); A mounting seat (400) is installed outside the probe body (103), a docking hole (401) is provided on the outer circumference of the surface of the mounting seat (400), and a hollow cylinder (402) is telescopically movable in the docking hole (401); The top end of the docking hole (401) is docked with an anti-pressure tube (200), the top end of the anti-pressure tube (200) is docked with an adjustment component (300), and the side of the adjustment component (300) away from the anti-pressure tube (200) is docked with an extraction tube (202); The adjustment component (300) comprises a vent disc 1 (301) and a vent disc 2 (302).

2. The static pressure liquid level sensor according to claim 1, characterized in that: A guide channel (403) is provided on the outer side of the mounting seat (400), the guide channel (403) being in communication with the docking hole (401), a bolt (404) being provided on the outer peripheral wall of the hollow cylinder (402), the bolt (404) being through-connected with the guide channel (403), one end of the bolt (404) extending out of the guide channel (403) being externally threaded with a nut (405), and a suction cup (406) being docked at the bottom end of the hollow cylinder (402).

3. The static pressure liquid level sensor according to claim 1, characterized in that: A tightening belt (201) is provided outside the pressure-proof tube (200).

4. The static pressure liquid level sensor according to claim 1, characterized in that: The ventilation disc one (301) and the ventilation disc two (302) are rotatably connected, and the inner edge of the ventilation disc one (301) is fixedly connected with a semi-circular disc one (303) and a semi-circular plate one (305), and the inner edge of the ventilation disc two (302) is fixedly connected with a semi-circular disc two (304) and a semi-circular plate two (307).

5. The static pressure liquid level sensor according to claim 4, characterized in that: A through hole one (306) is provided on the surface of the semicircular plate one (305), and a through hole two (308) is provided on the surface of the semicircular plate two (307).

6. The static pressure liquid level sensor according to claim 1, characterized in that: A guide groove (309) is provided on an edge of one side of the ventilation plate 1 (301) facing the ventilation plate 2 (302), and a guide block (311) is fixedly mounted on one side of the ventilation plate 2 (302) facing the ventilation plate 1 (301), and the guide block (311) slides in the guide groove (309).

7. The static pressure liquid level sensor according to claim 6, characterized in that: Positive electrode blocks (310) are arranged at the inner edges of both ends of the guide groove (309), and negative electrode blocks (312) are arranged at the outer edges of both ends of the guide block (311), and the positive electrode blocks (310) and the negative electrode blocks (312) attract each other with different polarities.

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