Isolation type liquid level meter

Abstract

The utility model discloses an isolation type liquid level meter which comprises an installation rod, a detection mechanism and an installation mechanism. A fixing plate is arranged in the middle of the lower end of the mounting rod, an antenna is arranged in the middle of the lower end of the fixing plate, and a fixing seat is arranged at the upper end of the mounting rod; the detection mechanism comprises a mounting groove, a microwave radio frequency high-power amplifier and a radio frequency connector, the mounting groove is formed in the lower side of the interior of the fixing base, and the microwave radio frequency high-power amplifier and the radio frequency connector are arranged on the right side and the rear side of the bottom wall of the mounting groove respectively; the mounting mechanism is arranged in the mounting rod, and the mounting mechanism is fixedly connected to the lower side of the outer arc surface of the mounting rod; the isolation type liquid level meter further comprises a single-chip microcomputer, the single-chip microcomputer is arranged in the installation groove, the input end of the single-chip microcomputer is electrically connected with an external power source, the isolation type liquid level meter can replace a traditional mode that the isolation type liquid level meter is installed through bolt body connection, installation and disassembly are convenient, and working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid level gauges, in particular to an isolation type liquid level gauge. Background Art

[0002] An isolated level gauge is a device used to measure the level of liquid. It observes the position of the liquid surface in a pressure vessel or storage tank through non-contact measurement. According to the working principle, the isolated level gauge can be divided into float type isolated level gauge, pressure sensor type isolated level gauge and electromagnetic wave radar isolated level gauge;

[0003] During the use of electromagnetic wave radar isolation level meter, it makes the transmitter emit electromagnetic waves through the antenna. When these waves encounter the measured object (such as the liquid surface), they will be reflected. Then the receiver receives them through the antenna. By measuring the time from the emission to the reception of the electromagnetic wave, the height of the liquid level can be calculated.

[0004] The existing isolated liquid level gauge is usually connected to the corresponding interface by fastening bolts during use, but the operation is troublesome. At the same time, the fastening screws will corrode and fall off after long-term use, thereby reducing the stability of the isolated liquid level gauge. Some isolated liquid level gauges are installed and connected to the corresponding interface by welding, but it is not convenient to disassemble them during the inspection and maintenance process, which increases the inspection time of the staff and reduces the work efficiency. For this reason, we propose an isolated liquid level gauge. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide an isolated liquid level gauge. Through the coordinated arrangement of the baffle and the top plate, the position of the clamping plate can be adjusted, so that the clamping plate drives the mounting rod to move so that it is tightly fixed with the corresponding interface, replacing the traditional method of installing the isolated liquid level gauge through a bolt connection. The installation and disassembly is more convenient, the work efficiency is improved, and the problems in the background technology can be effectively solved.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an isolated level gauge, comprising a mounting rod, a detection mechanism and a mounting mechanism;

[0007] Mounting rod: a fixing plate is arranged in the middle of the lower end thereof, an antenna is arranged in the middle of the lower end of the fixing plate, and a fixing seat is arranged at the upper end of the mounting rod;

[0008] Detection mechanism: It includes a mounting slot, a microwave radio frequency high power amplifier and a radio frequency connector. The mounting slot is arranged on the lower side of the fixing seat, and the microwave radio frequency high power amplifier and the radio frequency connector are arranged on the right side and the rear side of the bottom wall of the mounting slot respectively;

[0009] Mounting mechanism: it is arranged inside the mounting rod, and the mounting mechanism is fixedly connected to the lower side of the outer arc surface of the mounting rod;

[0010] Wherein: it also includes a single-chip microcomputer, which is arranged inside the installation groove, the input end of the single-chip microcomputer is electrically connected to the external power supply, the input end of the microwave radio frequency high-power amplifier is electrically connected to the output end of the single-chip microcomputer, the input end of the antenna is electrically connected to the output end of the microwave radio frequency high-power amplifier, the input end of the radio frequency connector is electrically connected to the output end of the antenna, and the radio frequency connector is bidirectionally electrically connected to the single-chip microcomputer. Through the coordinated arrangement of the baffle plate and the top plate, the position of the clamping plate can be adjusted, so that the clamping plate drives the mounting rod to move, so that it is tightly fixed to the corresponding interface, replacing the traditional method of installing the isolated liquid level meter through a bolt connection, the installation and disassembly are more convenient, and the work efficiency is improved.

[0011] Furthermore, the mounting mechanism includes a mounting seat and a clamping plate, the mounting seats are respectively fixedly connected to the lower side of the outer arc surface of the mounting rod, the clamping plates are rotatably connected to the connecting groove opened at one end of the mounting seat away from the inner center of the mounting rod through a pin shaft, and the upper end of the clamping plate is provided with an adjustment groove, which can install and fix the isolation type liquid level meter.

[0012] Furthermore, the mounting mechanism also includes a sliding column, an adjusting rod and a baffle. The sliding columns are respectively slidably connected to the sliding holes arranged on the upper side of the mounting rod. A baffle is arranged at one end of the sliding column close to the inner center of the mounting rod, and an adjusting rod is arranged at one end of the sliding column away from the inner center of the mounting rod. The adjusting rods are respectively located inside vertically adjacent limit grooves, so as to adjust the position of the splint.

[0013] Furthermore, the mounting mechanism also includes springs, which are respectively arranged between one end of the baffle away from the inner center of the mounting rod and the inner wall of the mounting rod. The springs are all sleeved on the outside of the inner side of the sliding column and can drive the clamping plate to move and reset through the baffle.

[0014] Furthermore, it also includes a screw rod and a top plate, wherein the screw rod is rotatably connected to the middle part of the top wall of the mounting rod through a bearing, the top plate is slidably connected to the inner wall of the mounting rod, the screw rod is threadedly connected to a threaded hole set in the middle part of the upper end of the top plate, and the upper end of the baffle plate is in contact with the inclined surface of the lower end of the top plate, and the sliding column can be driven to move through the baffle plate.

[0015] Furthermore, it also includes a servo motor, which is arranged in the middle of the bottom wall of the mounting rod. The upper end of the servo motor output shaft is fixedly connected to the lower end of the screw rod, and the top plate can be driven to move through the screw rod.

[0016] Furthermore, it also includes a rubber pad, which is arranged at the lower end of the fixing plate to increase the sealing between the fixing plate and the external interface.

[0017] Compared with the prior art, the utility model has the following advantages:

[0018] After inserting the antenna into the corresponding pipe interface, the lower end of the rubber pad is in contact with the upper end of the corresponding interface, and then the servo motor starts to run through the control of the single chip microcomputer, and the output shaft of the servo motor drives the screw to rotate. During the rotation, the screw drives the top plate to move downward through the threaded connection. When the upper end of the baffle contacts the inclined surface of the lower end of the top plate, the baffle is thrust by the top plate and starts to drive the sliding column to move toward the end away from the inner center of the mounting rod, and the spring contracts. At this time, the adjusting rod slides inside the adjusting groove and rotates relative to the adjusting groove, so that the sliding column drives the clamping plate to rotate toward the end close to the inner center of the mounting rod through the adjusting rod. When the clamping plate contacts the outer surface of the corresponding interface, the clamping plate drives the mounting rod to move so that it is tightly attached to the interface, thereby realizing the installation and fixation of the isolated liquid level gauge. Through the coordinated setting of the baffle and the top plate, the position of the clamping plate can be adjusted, so that the clamping plate drives the mounting rod to move so that it is tightly fixed to the corresponding interface, replacing the traditional method of installing the isolated liquid level gauge through the bolt body connection. The installation and disassembly are more convenient, and the work efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the detection mechanism of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the installation mechanism of the utility model.

[0022] In the figure: 1 mounting rod, 2 fixing seat, 3 detection mechanism, 31 mounting slot, 32 microwave radio frequency high power amplifier, 33 radio frequency connector, 4 single chip microcomputer, 5 antenna, 6 fixing plate, 7 mounting mechanism, 71 mounting seat, 72 clamping plate, 73 sliding column, 74 adjusting rod, 75 baffle, 76 spring, 8 screw rod, 9 top plate, 10 servo motor, 11 rubber pad. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-3, this embodiment provides a technical solution: an isolated level gauge, comprising a mounting rod 1, a detection mechanism 3 and a mounting mechanism 7;

[0025] Installation rod 1: A fixing plate 6 is provided in the middle of its lower end, an antenna 5 is provided in the middle of the lower end of the fixing plate 6, and a fixing seat 2 is provided at the upper end of the installation rod 1. Before use, the isolation type liquid level gauge is moved to the designated work location, and then the antenna 5 is inserted into the corresponding pipe interface, and then it is installed and fixed by the installation equipment. When the isolation type liquid level gauge is working, the detection equipment starts to run through the regulation of the control equipment, and the detection equipment converts the electric energy into electromagnetic waves, and then transmits them through the antenna 5. When the electromagnetic waves encounter the surface of the material, the electromagnetic waves are reflected back, and the antenna 5 receives the reflected electromagnetic waves, and then the antenna 5 transmits the received electromagnetic waves to the receiving equipment, and the receiving equipment converts the received electromagnetic waves into electrical signals, and then the receiving equipment transmits the received electrical signals to the control equipment in real time, and the actual height of the liquid level is obtained after calculation by the control equipment;

[0026] Detection mechanism 3: It includes an installation slot 31, a microwave radio frequency high power amplifier 32 and a radio frequency connector 33. The installation slot 31 is arranged on the lower side of the fixing seat 2. The right side and the rear side of the bottom wall of the installation slot 31 are respectively provided with a microwave radio frequency high power amplifier 32 and a radio frequency connector 33. When the isolation type liquid level meter is working, the microwave radio frequency high power amplifier 32 starts to operate through the regulation of the control device, and the microwave radio frequency high power amplifier 32 converts electrical energy into electromagnetic waves, which are then emitted through the antenna 5. When the electromagnetic waves encounter the surface of the material, the electromagnetic waves are reflected back, and the antenna 5 receives the reflected electromagnetic waves. Then, the antenna 5 transmits the received electromagnetic waves to the radio frequency connector 33, and the radio frequency connector 33 converts the received electromagnetic waves into electrical signals. Then, the radio frequency connector 33 transmits the received electrical signals to the control device in real time, and the actual height of the liquid level is obtained after calculation by the control device.

[0027] The cam 72 is provided with a plurality of springs 76 which are fixed to the bottom of the cam 76, and the springs 77 are provided with a plurality of springs 78 which are provided with springs 79 which are provided with springs 80. The springs 78 are provided with springs 81 which are provided with springs 82 which are provided with springs 83. When the locking cam 75 is in the closed position, the locking cam 73 is in the closed position, and the spring 76 is pressed against the locking cam 74 to release the locking cam 76, so that the locking cam 73 is in the closed position.

[0028] Among them: it also includes a single-chip microcomputer 4, which is arranged inside the installation groove 31, the input end of the single-chip microcomputer 4 is electrically connected to the external power supply, the input end of the microwave radio frequency high-power amplifier 32 is electrically connected to the output end of the single-chip microcomputer 4, the input end of the antenna 5 is electrically connected to the output end of the microwave radio frequency high-power amplifier 32, the input end of the radio frequency connector 33 is electrically connected to the output end of the antenna 5, and the radio frequency connector 33 is bidirectionally electrically connected to the single-chip microcomputer 4, which can regulate the electrical components inside the device.

[0029] The screw rod 8 is connected to the middle part of the top wall of the mounting rod 1 by a bearing, the top plate 9 is connected to the inner wall of the mounting rod 1 by sliding, the screw rod 8 is connected to the threaded hole in the middle part of the upper end of the top plate 9 by thread, the upper end of the baffle plate 75 is in contact with the inclined surface of the lower end of the top plate 9, the screw rod 8 drives the top plate 9 to move downward by thread connection during the rotation, when the upper end of the baffle plate 75 contacts the inclined surface of the lower end of the top plate 9, the baffle plate 75 is pushed by the top plate 9 and starts to drive the sliding column 73 to move toward the end away from the inner center of the mounting rod 1, the spring 76 contracts, at this time, the adjusting rod 74 slides inside the adjusting groove and rotates relative to the adjusting groove, so that the sliding column 73 drives the clamping plate 72 to rotate toward the end close to the inner center of the mounting rod 1 through the adjusting rod 74.

[0030] Among them: it also includes a servo motor 10, the servo motor 10 is arranged in the middle of the bottom wall of the mounting rod 1, the upper end of the output shaft of the servo motor 10 is fixedly connected to the lower end of the screw 8, through the regulation of the single-chip computer 4, the servo motor 10 starts to run, the output shaft of the servo motor 10 drives the screw 8 to rotate, and the screw 8 drives the top plate 9 to move downward through the threaded connection during the rotation process.

[0031] Among them: it also includes a rubber pad 11, which is arranged at the lower end of the fixing plate 6. After the antenna 5 is inserted into the corresponding pipe interface, the lower end of the rubber pad 11 contacts the upper end of the corresponding interface, thereby increasing the sealing between the fixing plate 6 and the external interface.

[0032] The working principle of an isolated liquid level gauge provided by the utility model is as follows: before use, the isolated liquid level gauge is moved to the designated work location, and then the antenna 5 is inserted into the corresponding pipe interface, so that the lower end of the rubber pad 11 contacts the upper end of the corresponding interface, and then the servo motor 10 starts to run through the regulation of the single-chip microcomputer 4, and the output shaft of the servo motor 10 drives the screw 8 to rotate. During the rotation, the screw 8 drives the top plate 9 to move downward through the threaded connection. When the upper end of the baffle 75 contacts the inclined surface of the lower end of the top plate 9, the baffle 75 receives the thrust of the top plate 9 and starts to drive the slide column 73 to move toward the end away from the inner center of the mounting rod 1, and the spring 76 contracts. At this time, the adjusting rod 74 slides inside the adjusting groove and rotates relative to the adjusting groove, so that the slide column 73 drives the clamping plate 72 to approach the mounting rod 1 through the adjusting rod 74. One end of the inner center rotates, and when the splint 72 contacts the outer surface of the corresponding interface, the splint 72 drives the mounting rod 1 to move so that it is tightly attached to the interface, thereby realizing the installation and fixation of the isolated liquid level meter. When the isolated liquid level meter is working, the microwave radio frequency high-power amplifier 32 starts to run through the regulation of the single-chip microcomputer 4, and the microwave radio frequency high-power amplifier 32 converts electrical energy into electromagnetic waves, which are then emitted through the antenna 5. When the electromagnetic wave encounters the surface of the material, the electromagnetic wave is reflected back, and the antenna 5 receives the reflected electromagnetic wave, and then the antenna 5 transmits the received electromagnetic wave to the radio frequency connector 33, and the radio frequency connector 33 converts the received electromagnetic wave into an electrical signal, and then the radio frequency connector 33 transmits the received electrical signal to the single-chip microcomputer 4 in real time, and the actual height of the liquid level is obtained after calculation by the single-chip microcomputer 4.

[0033] It is worth noting that the single chip microcomputer 4 disclosed in the above embodiment can select STM8S207S8T6C, the microwave radio frequency high power amplifier 32 can select TPA-001023G01, the radio frequency connector 33 can select BNC-KE, the antenna 5 can select RM-CDPHA218-15, and the servo motor 10 can select ECMA-C20604RS. The single chip microcomputer 4 controls the microwave radio frequency high power amplifier 32, the radio frequency connector 33, the antenna 5 and the servo motor 10 to work using methods commonly used in the prior art.

[0034] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An isolated level gauge, characterized in that: It comprises a mounting rod (1), a detection mechanism (3) and a mounting mechanism (7); A mounting rod (1): a fixing plate (6) is arranged in the middle of the lower end thereof, an antenna (5) is arranged in the middle of the lower end of the fixing plate (6), and a fixing seat (2) is arranged at the upper end of the mounting rod (1); The detection mechanism (3) comprises a mounting groove (31), a microwave radio frequency high power amplifier (32) and a radio frequency connector (33), wherein the mounting groove (31) is arranged at the lower side of the interior of the fixing seat (2), and the microwave radio frequency high power amplifier (32) and the radio frequency connector (33) are respectively arranged on the right side and the rear side of the bottom wall of the mounting groove (31); A mounting mechanism (7): the mounting mechanism (7) is arranged inside the mounting rod (1), and the mounting mechanism (7) is fixedly connected to the lower side of the outer arc surface of the mounting rod (1); The single-chip microcomputer (4) is also included, the single-chip microcomputer (4) is arranged inside the installation groove (31), the input end of the single-chip microcomputer (4) is electrically connected to an external power supply, the input end of the microwave radio frequency high-power amplifier (32) is electrically connected to the output end of the single-chip microcomputer (4), the input end of the antenna (5) is electrically connected to the output end of the microwave radio frequency high-power amplifier (32), the input end of the radio frequency connector (33) is electrically connected to the output end of the antenna (5), and the radio frequency connector (33) is bidirectionally electrically connected to the single-chip microcomputer (4).

2. An isolated liquid level gauge according to claim 1, characterized in that: The mounting mechanism (7) comprises a mounting seat (71) and a clamping plate (72), wherein the mounting seats (71) are respectively fixedly connected to the lower side of the outer arc surface of the mounting rod (1), and the clamping plates (72) are rotatably connected to a connecting groove provided at one end of the mounting seat (71) away from the inner center of the mounting rod (1) via a pin shaft, and the upper end of the clamping plates (72) is provided with an adjustment groove.

3. An isolated liquid level gauge according to claim 2, characterized in that: The mounting mechanism (7) further comprises a sliding column (73), an adjusting rod (74) and a baffle (75); the sliding column (73) is respectively slidably connected to a sliding hole provided on the upper side of the mounting rod (1); the baffle (75) is provided at one end of the sliding column (73) close to the inner center of the mounting rod (1); the adjusting rod (74) is provided at one end of the sliding column (73) away from the inner center of the mounting rod (1); the adjusting rod (74) is respectively located inside the vertically adjacent limiting grooves.

4. The isolated liquid level gauge according to claim 3, characterized in that: The mounting mechanism (7) further comprises a spring (76), wherein the spring (76) is respectively arranged between an end of the baffle (75) away from the inner center of the mounting rod (1) and the inner wall of the mounting rod (1), and the spring (76) is sleeved on the outside of the inner side of the sliding column (73).

5. The isolated liquid level gauge according to claim 3, characterized in that: It also includes a screw rod (8) and a top plate (9), wherein the screw rod (8) is rotatably connected to the middle part of the top wall of the mounting rod (1) through a bearing, the top plate (9) is slidably connected to the inner wall of the mounting rod (1), the screw rod (8) is threadedly connected to a threaded hole provided in the middle part of the upper end of the top plate (9), and the upper end of the baffle (75) is in contact with the inclined surface of the lower end of the top plate (9).

6. The isolated liquid level gauge according to claim 5, characterized in that: It also comprises a servo motor (10), wherein the servo motor (10) is arranged at the middle part of the bottom wall of the mounting rod (1), and the upper end of the output shaft of the servo motor (10) is fixedly connected to the lower end of the screw rod (8).

7. The isolated liquid level gauge according to claim 1, characterized in that: It also includes a rubber pad (11), which is arranged at the lower end of the fixing plate (6).

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