Split type radar liquid level meter

Abstract

The utility model discloses a split type radar liquid level meter, which belongs to the field of radar liquid level meters and comprises a receiver, a support arranged on one side of the receiver and an emitter arranged on the inner side of the support, and the receiver is electrically connected with the emitter through a connecting pipeline. The split type radar liquid level meter is simple in structure and convenient to use, through the design of the rotating shaft and the limiting mechanism, the angle of the emitter can be conveniently adjusted, the emitter can be fixed after being adjusted, angle change in the using process is avoided, the accuracy and stability of detection are ensured, and meanwhile the sliding sleeve and the threaded sleeve are combined for use, so that the detection accuracy is improved. By means of the structure, a connecting pipeline can be effectively fixed and prevented from moving or shaking in the using process, the using stability is guaranteed, the sealing ring on the limiting ring can be tightly attached to the connecting pipeline and the using position, the sealing performance of a penetrating hole is guaranteed, and leakage is effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of radar level gauges, in particular to a split-type radar level gauge. Background Art

[0002] The split radar level meter is an instrument that uses microwave radar technology to measure liquid level. It has the characteristics of high precision, strong anti-interference ability, and easy installation. It plays an important role in industrial production. The split radar level meter transmits microwave signals to the measured medium through the transmitter. The microwave signal encounters the surface of the measured medium during the propagation process and is reflected. The reflected signal is received and processed by the receiver. By calculating the echo time and frequency change, the thickness information of the measured medium can be obtained, and then the liquid level height can be calculated.

[0003] Upon investigation, it was found that the Chinese utility model patent with announcement number CN210268830U discloses a split low-loss guided wave radar level meter. The radar level meter realizes the split installation of the guided wave radar level meter through well-designed radar probe components and radar detection components, and realizes low-loss connection between the two parts through radio frequency cables, which solves the problem that the guided wave radar level meter on the existing market cannot be installed separately, so that the guided wave radar can be better used in industrial sites with harsh environments and serious interference without adding additional reinforcement and anti-interference measures; however, in order to adapt to different usage scenarios, the detector part is usually designed to be used in an angle-adjustable form, and the angle adjustment of the detector usually relies on damping force for limiting, and as the liquid is added and discharged at the place of use, a certain vibration may be generated, which may have a certain impact on the use angle of the detector after a long time, thereby reducing the accuracy of the detection.

[0004] Therefore, the utility model provides a split-type radar level gauge to solve the above problems. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] The utility model provides a split radar level meter, aiming to solve the problem of unstable use of the existing transmitter proposed in the background technology.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a split radar level meter, comprising a receiver, a bracket arranged on one side of the receiver, and a transmitter arranged on the inner side of the bracket, the receiver and the transmitter are electrically connected through a connecting pipeline, a mounting plate is fixedly installed on one end of the receiver, and a display screen is arranged on the end of the receiver away from the mounting plate.

[0009] In order to solve the problem of fixing the transmitter at different use angles, a rotating shaft is rotatably installed in the bracket, the transmitter is mounted on the rotating shaft, one end of the rotating shaft passes through the bracket, and the end of the rotating shaft located outside the bracket is provided with a slot, a slide bar is slidably installed in the slot, a pull plate is fixedly installed at the end of the slide bar away from the slot, a reset spring is fixedly installed between the slide bar and the slot, and a limiting mechanism for limiting the rotating shaft is provided on the bracket and the pull plate. Through the coordinated use of the slide bar, the pull plate and the limiting mechanism, the adjusted use angle of the rotating shaft and the transmitter can be fixed, ensuring that the transmitter is more stable when used and avoiding affecting the accuracy of the measurement.

[0010] Preferably, in order to solve the problem of limiting the position between the pull plate and the bracket, the limiting mechanism includes a plurality of limiting grooves arranged in a circular array on the bracket and a plurality of limiting heads fixedly installed on the opposite side of the pull plate and the bracket and arranged in a circular array and adapted to the limiting grooves. Through the coordinated use of the limiting heads and the limiting grooves, the rotating shaft can be limited, and the operation is convenient and quick to adjust and use.

[0011] Preferably, in order to solve the adaptability problem of the limiting mechanism, the limiting groove and the limiting head are both hemispherical. Through the hemispherical design, the limiting head can be quickly inserted into the limiting groove for use, thereby improving the efficiency of operation.

[0012] Preferably, in order to solve the protection problem when the connecting pipeline passes through the perforation, a sliding sleeve is mounted on the connecting pipeline, an annular groove is formed at one end of the sliding sleeve, a threaded sleeve is mounted on the connecting pipeline near the annular groove, the threaded sleeve is threadedly connected to the annular groove, a limiting ring is fixedly installed at one end of the threaded sleeve away from the annular groove, and four groups of sliding mechanisms distributed in an annular array are arranged in the sliding sleeve. Through the coordinated use of the sliding sleeve, the threaded sleeve and the limiting ring, the connection position between the connecting pipeline and the perforation can be protected to reduce friction and damage.

[0013] Preferably, in order to solve the sliding problem of the sliding sleeve, the sliding mechanism includes at least three grooves arranged in an annular array in the sliding sleeve and balls rotatably installed in the grooves. By using the balls, the sliding sleeve can slide more smoothly when adjusting the position, which is convenient for operation.

[0014] Preferably, in order to solve the sealing problem between the perforation and the connecting pipeline, one end of the limit ring connected to the threaded sleeve is provided with a sealing ring adapted to the sliding sleeve. By using the sealing ring, the perforation and the connecting pipeline can be sealed to avoid leakage.

[0015] (III) Beneficial effects

[0016] The split radar level gauge has a simple structure and is easy to use. By arranging a pull plate and a limit ring and by designing a rotating shaft and a limit mechanism, the angle of the transmitter can be conveniently adjusted and fixed after adjustment to avoid angle changes during use, thereby ensuring the accuracy and stability of detection. At the same time, the combined use of a sliding sleeve and a threaded sleeve can effectively fix the connecting pipeline to prevent it from moving or shaking during use, thereby ensuring stability during use. The sealing ring on the limit ring can fit tightly with the connecting pipeline and the place of use, thereby ensuring the sealing of the perforation and effectively preventing leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of a split-type radar level gauge;

[0018] Figure 2 It is a schematic diagram of the transmitter structure of a split-type radar level gauge;

[0019] Figure 3 for Figure 1 A schematic diagram of the structure at A;

[0020] Figure 4 The present invention is a schematic diagram of the cross-sectional structure of a sliding sleeve of a split-type radar level gauge.

[0021] In the figure: 1. receiver; 11. mounting plate; 12. display screen; 2. bracket; 3. rotating shaft; 31. slot; 32. slide bar; 33. pull plate; 34. reset spring; 35. limit mechanism; 351. limit groove; 352. limit head; 4. transmitter; 5. connecting pipeline; 51. sliding sleeve; 52. annular groove; 53. threaded sleeve; 54. limit ring; 55. sealing ring; 56. sliding mechanism; 561. receiving groove; 562. ball bearing. DETAILED DESCRIPTION

[0022] 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.

[0023] Example 1

[0024] The utility model provides a split type radar level meter, such as Figure 1-4As shown, the radar level meter includes a receiver 1, a bracket 2 arranged on one side of the receiver 1, and a transmitter 4 arranged inside the bracket 2. The receiver 1 and the transmitter 4 are electrically connected through a connecting pipeline 5. A mounting plate 11 is fixedly mounted on one end of the receiver 1, and a display screen 12 is arranged on the end of the receiver 1 away from the mounting plate 11.

[0025] A rotating shaft 3 is rotatably installed in the bracket 2, and the transmitter 4 is mounted on the rotating shaft 3. One end of the rotating shaft 3 passes through the bracket 2. A slot 31 is provided at one end of the rotating shaft 3 located outside the bracket 2. A sliding rod 32 is slidably installed in the slot 31. A pull plate 33 is fixedly installed at one end of the sliding rod 32 away from the slot 31. A reset spring 34 is fixedly installed between the sliding rod 32 and the slot 31. A limiting mechanism 35 for limiting the rotating shaft 3 is provided on the bracket 2 and the pull plate 33.

[0026] When in use, the receiver 1 can be fixed to the outside of the use position through the mounting plate 11, and the bracket 2 can be fixed to the position inside that needs to be detected by bolts. Then, the angle of the transmitter 4 can be adjusted according to the angle of use of the transmitter 4. When adjusting, the transmitter 4 can be rotated through the shaft 3. After the shaft 3 is rotated, the angle of the shaft 3 can be limited by the limiting mechanism 35, so that the transmitter 4 can be fixed for use to prevent it from rotating to change the use angle.

[0027] Specifically, the limiting mechanism 35 includes a plurality of limiting grooves 351 distributed in a circular array on the bracket 2 and a plurality of limiting heads 352 fixedly installed on the side of the pull plate 33 opposite to the bracket 2 and distributed in a circular array and adapted to the limiting grooves 351, and the limiting grooves 351 and the limiting heads 352 are both hemispherical; before the rotating shaft 3 rotates, the pull plate 33 can be pulled to make the slide bar 32 slide along the slot 31, so that the limiting head 352 is separated from the limiting groove 351, and the rotating shaft 3 can be rotated to adjust the angle of the launcher 4 at this time, and after the adjustment is completed, the pull plate 33 is released, and the slide bar 32 can slide in the opposite direction along the slot 31 under the action of the reset spring 34, and the limiting head 352 can enter the limiting groove 351 to fix the pull plate 33 and the rotating shaft 3.

[0028] Example 2

[0029] Different from Example 1, a sliding sleeve 51 is mounted on the connecting pipeline 5, an annular groove 52 is provided at one end of the sliding sleeve 51, a threaded sleeve 53 is mounted on the connecting pipeline 5 near the annular groove 52, the threaded sleeve 53 is threadedly connected to the annular groove 52, a limiting ring 54 is fixedly installed on one end of the threaded sleeve 53 away from the annular groove 52, and four groups of sliding mechanisms 56 distributed in a circular array are arranged in the sliding sleeve 51.

[0030] When in use, the connecting pipeline 5 between the receiver 1 and the transmitter 4 needs to pass through the use position through the perforation. At this time, the sliding sleeve 51 and the threaded sleeve 53 are respectively located on both sides of the perforation. The sliding sleeve 51 can be slid along the connecting pipeline 5 so that the end with the annular groove 52 fits with the perforation, and then the threaded sleeve 53 is slid and inserted into the annular groove 52 and rotated to enter the annular groove 52. At this time, the limit ring 54 can fit with the perforation, and the threaded sleeve 53 can protect the connecting pipeline 5.

[0031] Specifically, the sliding mechanism 56 includes at least three grooves 561 distributed in a circular array and arranged in the sliding sleeve 51, and balls 562 rotatably installed in the grooves 561; during the sliding process of the sliding sleeve 51, the balls 562 can contact the outer wall of the connecting pipeline 5, thereby reducing friction and avoiding scratches on the connecting pipeline 5 by the sliding sleeve 51.

[0032] Furthermore, one end of the limiting ring 54 connected to the threaded sleeve 53 is provided with a sealing ring 55 adapted to the sliding sleeve 51; the sealing ring 55 on the limiting ring 54 can fit with the connecting pipeline 5 and the place of use, ensuring the sealing of the perforation and avoiding leakage.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A split-type radar level gauge, comprising a receiver (1), a bracket (2) arranged at one side of the receiver (1), and a transmitter (4) arranged inside the bracket (2), wherein the receiver (1) and the transmitter (4) are electrically connected via a connecting pipeline (5), a mounting plate (11) is fixedly mounted on one end of the receiver (1), and a display screen (12) is arranged on one end of the receiver (1) away from the mounting plate (11); Features: A rotating shaft (3) is rotatably installed in the bracket (2), and the transmitter (4) is mounted on the rotating shaft (3). One end of the rotating shaft (3) passes through the bracket (2), and one end of the rotating shaft (3) located outside the bracket (2) is provided with a slot (31). A sliding rod (32) is slidably installed in the slot (31), and a pull plate (33) is fixedly installed at one end of the sliding rod (32) away from the slot (31). A reset spring (34) is fixedly installed between the sliding rod (32) and the slot (31), and a limiting mechanism (35) for limiting the rotating shaft (3) is provided on the bracket (2) and the pull plate (33).

2. The split type radar level gauge according to claim 1, characterized in that: The limiting mechanism (35) comprises a plurality of limiting grooves (351) arranged in a circular array on the bracket (2) and a plurality of limiting heads (352) fixedly mounted on a surface of the pull plate (33) opposite to the bracket (2) and arranged in a circular array and adapted to the limiting grooves (351).

3. The split type radar level gauge according to claim 2 is characterized in that: The limiting groove (351) and the limiting head (352) are both hemispherical.

4. The split type radar level gauge according to claim 1, characterized in that: The connecting pipeline (5) is sleeved with a sliding sleeve (51), one end of which is provided with an annular groove (52), and the connecting pipeline (5) is sleeved with a threaded sleeve (53) at a position close to the annular groove (52), the threaded sleeve (53) being threadedly connected to the annular groove (52), and a limiting ring (54) being fixedly mounted on one end of the threaded sleeve (53) away from the annular groove (52), and four groups of sliding mechanisms (56) distributed in an annular array are arranged inside the sliding sleeve (51).

5. The split type radar level gauge according to claim 4 is characterized in that: The sliding mechanism (56) comprises at least three receiving grooves (561) distributed in an annular array and arranged in the sliding sleeve (51), and balls (562) rotatably mounted in the receiving grooves (561).

6. The split type radar level gauge according to claim 4, characterized in that: One end of the limiting ring (54) connected to the threaded sleeve (53) is provided with a sealing ring (55) adapted to the sliding sleeve (51).

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