Radar liquid level meter with adjustable detection angle

Abstract

The radar liquid level meter with the adjustable detection angle comprises a radar liquid level meter body and a fixing plate, the outer wall of the fixing plate is fixedly connected with the outer wall of the detection end of the radar liquid level meter body through an opening, and a hemispherical sliding shell is installed at the detection end of the radar liquid level meter body. The inner wall of the hemispherical sliding shell is movably connected with a spherical movable bead, and a wave guide rod is fixedly arranged at one end of the bottom of the spherical movable bead. The output shaft of the limiting motor rotates to drive the rotating rod to rotate, the rotating rod drives the positioning shaft to rotate through the eccentric plate, the positioning shaft drives the wave guide rod to rotate through the pneumatic push rod, the wave guide rod rotates with the spherical movable bead as the center, and the pneumatic push rod is arranged between the positioning shaft and the wave guide rod in cooperation with stretching of the output shaft of the pneumatic push rod. The amplitude of the detection angle of the wave guide rod is adjusted, angle adjustment can be carried out in multiple directions, and the detection effect of the radar liquid level meter is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid level measurement, and particularly relates to a radar liquid level gauge with adjustable detection angle. Background Technique

[0002] The radar liquid level gauge belongs to a general-purpose radar liquid level gauge. It is a measuring instrument based on the time-of-flight principle. The radar wave travels at the speed of light, and the running time can be converted into a level signal by electronic components. The probe emits high-frequency pulses that propagate in space at the speed of light. When the pulse encounters the surface of the material, it is reflected back and received by the receiver in the instrument, and the distance signal is converted into a level signal.

[0003] Patent (CN220186308U) discloses a radar liquid level gauge with adjustable angle, in which "starting the drive motor 8 drives the drive shaft 13 to rotate through the right-angle commutator 9, thereby driving the movable block to rotate, and the radar generator 3 and the waveguide 7 rotate around the drive shaft 13, thereby adjusting the pointing direction of the radar generator 3". Rotating the waveguide around the drive shaft only performs angle adjustment in the same plane and cannot perform multi-directional angle adjustment. For this reason, we propose a radar liquid level gauge with adjustable detection angle. Content of the Utility Model

[0004] The purpose of the utility model is to provide a radar liquid level gauge with adjustable detection angle to solve the above deficiencies in the technology.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A radar liquid level gauge with adjustable detection angle, including a radar liquid level gauge main body and a fixing plate. The outer wall of the fixing plate is fixedly connected to the outer wall of the detection end of the radar liquid level gauge main body through an opening. A hemispherical sliding shell is installed at the detection end of the radar liquid level gauge main body. A spherical movable bead is movably connected to the inner wall of the hemispherical sliding shell. One end of the bottom of the spherical movable bead is fixedly provided with a waveguide rod. A first fixing ring is fixedly provided on the outer wall of one side of the top of the waveguide rod. A limiting motor is provided on the top outer wall of the fixing plate and vertically downward. The output end of the limiting motor passes through the outer wall of the fixing plate and is fixedly provided with a rotating rod through a coupling. An eccentric plate is fixedly provided on the outer wall of one end of the bottom of the rotating rod. A positioning shaft is fixedly provided on the outer wall of one end of the bottom of the eccentric plate. A bearing is sleeved on the outer wall of the positioning shaft. A second fixing ring is fixedly provided on the outer wall of the bearing. A pneumatic push rod is provided on one side of the second fixing ring. The output end of the pneumatic push rod is fixedly connected to the outer wall of the second fixing ring.

[0006] Preferably, a hinge block is fixedly provided on the outer wall of one side of the first fixing ring. A hinge plate is installed at one end of the bottom of the pneumatic push rod. The hinge plate is movably connected to the hinge block.

[0007] Preferably, fixing holes are equidistantly distributed on the outer wall of the top of the fixing plate, and bolts adapted to the inner walls of the fixing holes are provided. Passing the bolts through the inner walls of the fixing holes facilitates fixing the fixing plate at a designated position.

[0008] Preferably, a motor fixing cover is fixedly arranged on the outer wall of the top of the fixing plate, and the limit motor is located inside the motor fixing cover. The motor fixing cover facilitates fixing the limit motor on the top of the fixing plate.

[0009] Preferably, a wire reserved hole penetrating the waveguide rod is opened at one end of the top of the spherical movable bead. The waveguide rod facilitates connecting the wire connected to the spherical movable bead to the radar level gauge main body.

[0010] In the above technical solution, the technical effects and advantages provided by the present utility model are as follows:

[0011] The rotation of the output shaft of the limit motor drives the rotating rod to rotate. The rotating rod drives the positioning shaft to rotate through the eccentric plate. The positioning shaft drives the waveguide rod to rotate through the pneumatic push rod. The waveguide rod rotates around the spherical movable bead. Cooperating with the telescopic output shaft of the pneumatic push rod, the pneumatic push rod is between the positioning shaft and the waveguide rod, and the amplitude of the detection angle of the waveguide rod is adjusted, enabling multi-directional angle adjustment and greatly improving the detection effect of the radar level gauge. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0013] Figure 1 It is a three-dimensional structure schematic diagram of a radar level gauge with adjustable detection angle according to the present utility model;

[0014] Figure 2 It is a structure schematic diagram of the radar level gauge main body of a radar level gauge with adjustable detection angle according to the present utility model;

[0015] Figure 3 It is a structure schematic diagram of the waveguide rod of a radar level gauge with adjustable detection angle according to the present utility model;

[0016] Figure 4 It is a structure schematic diagram of the limit motor of a radar level gauge with adjustable detection angle according to the present utility model;

[0017] Figure 5 It is a structure schematic diagram of the pneumatic push rod of a radar level gauge with adjustable detection angle according to the present utility model.

[0018] Description of the reference numerals in the drawings:

[0019] 1 Radar level gauge main body, 2 Fixed plate, 3 Fixed hole, 4 Hemispherical sliding shell, 5 Spherical movable bead, 6 Wave guide rod, 7 Wire reserved hole, 8 Motor fixing cover, 9 Limit motor, 10 Rotating rod, 11 Eccentric plate, 12 Positioning shaft, 13 First fixing ring, 14 Hinge block, 15 Hinged plate, 16 Pneumatic push rod, 17 Second fixing ring, 18 Bearing. Detailed implementation manners

[0020] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the present utility model will be further introduced in detail below in conjunction with the accompanying drawings.

[0021] Embodiment 1

[0022] Refer to the attached drawings of the specification Figures 1-5 A radar level gauge with adjustable detection angle includes a radar level gauge main body 1 and a fixed plate 2. The outer wall of the fixed plate 2 is fixedly connected to the outer wall of the detection end of the radar level gauge main body 1 through an opening. A hemispherical sliding shell 4 is installed at the detection end of the radar level gauge main body 1. A spherical movable bead 5 is movably connected to the inner wall of the hemispherical sliding shell 4. One end of the bottom of the spherical movable bead 5 is fixedly provided with a wave guide rod 6. One side outer wall of the top of the wave guide rod 6 is fixedly provided with a first fixing ring 13. A limit motor 9 is provided on the top outer wall of the fixed plate 2 and vertically downward. The output end of the limit motor 9 passes through the outer wall of the fixed plate 2 and is fixedly provided with a rotating rod 10 through a coupling. One end of the bottom outer wall of the rotating rod 10 is fixedly provided with an eccentric plate 11. One end of the bottom outer wall of the eccentric plate 11 is fixedly provided with a positioning shaft 12. A bearing 18 is sleeved on the outer wall of the positioning shaft 12. A second fixing ring 17 is fixedly provided on the outer wall of the bearing 18. A pneumatic push rod 16 is provided on one side of the second fixing ring 17. The output end of the pneumatic push rod 16 is fixedly connected to the outer wall of the second fixing ring 17.

[0023] Embodiment 2

[0024] Based on Embodiment 1, a hinge block 14 is fixedly provided on one side outer wall of the first fixing ring 13. A hinged plate 15 is installed at one end of the bottom of the pneumatic push rod 16. The hinged plate 15 is movably connected to the hinge block 14. A wire reserved hole 7 penetrating through the wave guide rod 6 is opened at one end of the top of the spherical movable bead 5. Through the wave guide rod 6, it is convenient to connect the wire connected to the spherical movable bead 5 to the radar level gauge main body 1.

[0025] Embodiment 3

[0026] Based on the first embodiment, fixing holes 3 are equidistantly distributed on the top outer wall of the fixing plate 2. Bolts adapted to the inner walls of the fixing holes 3 are provided. Passing the bolts through the inner walls of the fixing holes 3 facilitates fixing the fixing plate 2 at a specified position. A motor fixing cover 8 is fixedly provided on the top outer wall of the fixing plate 2. The limit motor 9 is located inside the motor fixing cover 8. The motor fixing cover 8 facilitates fixing the limit motor 9 on the top of the fixing plate 2.

[0027] Working principle of the utility model:

[0028] Refer to the attached Figures 1-5 When the utility model is in use, place the fixing plate 2 at a specified position and fix the utility model at the specified position by passing bolts through the inner walls of the fixing holes 3. When it is necessary to adjust the detection angle of the waveguide rod 6, the output shaft of the limit motor 9 rotates to drive the rotating rod 10 to rotate. The rotating rod 10 drives the positioning shaft 12 to rotate through the eccentric plate 11. The positioning shaft 12 drives the waveguide rod 6 to rotate through the pneumatic push rod 16. The waveguide rod 6 rotates around the spherical movable bead 5. In cooperation with the telescopic output shaft of the pneumatic push rod 16, the pneumatic push rod 16 is between the positioning shaft 12 and the waveguide rod 6, and the amplitude of adjusting the detection angle of the waveguide rod 6 can be adjusted in multiple directions, greatly improving the detection effect of the radar level gauge.

[0029] Only some exemplary embodiments of the utility model are described by way of illustration. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the utility model, the described embodiments can be modified in various different ways. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the protection scope of the claims of the utility model.

Claims

1. A radar level meter with adjustable detection angle, comprising a radar level meter body (1) and a fixing plate (2), characterized in that: The outer wall of the fixed plate (2) is fixedly connected to the outer wall of the detection end of the radar level gauge body (1) through an opening; the detection end of the radar level gauge body (1) is installed with a hemispherical sliding shell (4); the inner wall of the hemispherical sliding shell (4) is movably connected with a spherical movable bead (5); a waveguide rod (6) is fixedly provided at one end of the bottom of the spherical movable bead (5); a first fixing ring (13) is fixedly provided on the outer wall of the top side of the waveguide rod (6); a vertically downward limiting motor (9) is provided on the top outer wall of the fixed plate (2); the output of the limiting motor (9) is The output end passes through the outer wall of the fixed plate (2) and is fixedly provided with a rotating rod (10) through a coupling; an eccentric plate (11) is fixedly provided on the outer wall of one end of the bottom of the rotating rod (10); a positioning shaft (12) is fixedly provided on the outer wall of one end of the bottom of the eccentric plate (11); a bearing (18) is sleeved on the outer wall of the positioning shaft (12); a second fixing ring (17) is fixedly provided on the outer wall of the bearing (18); a pneumatic push rod (16) is provided on one side of the second fixing ring (17); and the output end of the pneumatic push rod (16) is fixedly connected to the outer wall of the second fixing ring (17).

2. The radar level meter with adjustable detection angle according to claim 1, characterized in that: A hinge block (14) is fixedly provided on one side outer wall of the first fixing ring (13), and a hinge plate (15) is installed on one end of the bottom of the pneumatic push rod (16), and the hinge plate (15) is movably connected to the hinge block (14).

3. The radar level meter with adjustable detection angle according to claim 1, characterized in that: The top outer wall of the fixing plate (2) is provided with fixing holes (3) distributed at equal distances, and the inner walls of the fixing holes (3) are provided with matching bolts.

4. The radar level meter with adjustable detection angle according to claim 1, characterized in that: A motor fixing cover (8) is fixedly provided on the top outer wall of the fixing plate (2), and the limiting motor (9) is located on the inner wall of the motor fixing cover (8).

5. The radar level meter with adjustable detection angle according to claim 1, characterized in that: A wire reserved hole (7) for penetrating the waveguide rod (6) is formed at one end of the top of the spherical movable bead (5).

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