Radar liquid level meter with purging mechanism

Abstract

The utility model relates to the technical field of radar liquid level meters, in particular to a radar liquid level meter with a purging mechanism, which comprises a radar liquid level meter body and a rotating component. An antenna is arranged on the radar liquid level meter body, a connecting frame is rotationally connected to the radar liquid level meter body, two symmetrically-distributed connecting rods are arranged on the connecting frame, an annular pipe is arranged on the connecting rods, a plurality of air nozzles distributed in an annular array are formed in the annular pipe, and a fixing disc is arranged on the radar liquid level meter body; the rotating assembly comprises a first gear coaxially arranged on the connecting frame, a supporting plate arranged on the fixing disc, a micro motor arranged on the supporting plate, a main shaft in driving connection with the micro motor and a second gear coaxially arranged on the main shaft, and the main shaft is rotationally connected with the supporting plate. According to the utility model, the outer surface of the antenna can be completely covered by the purging effect, so that the situation that dew in a part of areas cannot be effectively removed is avoided, and the radar liquid level meter can be stably operated.

Description

TECHNICAL FIELD

[0001] The utility model relates to radar liquid level meter technical field, in particular to a kind of radar liquid level meter with blowing mechanism. BACKGROUND

[0002] Radar liquid level meter is a kind of measuring instrument based on time travel principle, it measures the distance of material surface by emitting high-frequency pulse and receiving reflected pulse, thereby converting into material level signal.Increase blowing mechanism on radar liquid level meter can be used to remove adhering matter on radar liquid level meter probe, to ensure the accuracy of measurement.

[0003] Chinese patent with the publication number CN218524224U discloses a kind of radar liquid level meter with blowing device, including radar liquid level meter body, the bottom of radar liquid level meter body is equipped with antenna, the lower end outer wall of radar liquid level meter body is fixed with mounting seat, the inside of mounting seat is equipped with collar, the bottom of collar is fixed with four evenly encircling arrangement installation groove frame, installation groove frame is slidably connected with installation pin by the slot of inside opening, the lower end outer wall of radar liquid level meter body is threadedly connected with screw knob, the outer wall of mounting seat is installed with blowing device, solve the problem that when radar liquid level meter is measured, due to the diameter of tank and kettle is smaller, the volume of agitator or beating pulp pump is larger and occupies middle position, the position of installing radar liquid level meter is reduced, liquid is easily evaporated or there is high-temperature steam, quickly dew on radar antenna, affect measurement precision, if not timely wiping, liquid level cannot be accurately measured, affect working hours.

[0004] But, the above technical scheme has following insufficient places: although the radar liquid level meter can be swept dew on antenna by the blowing device of setting, the outlet position of annular pipe is fixed immovably, when antenna is swept, part of surface on antenna cannot be effectively swept due to the size and angle of wind force, reduce the removal efficiency of dew. UTILITY MODEL CONTENTS

[0005] The utility model aims at the problems in the background art, proposes a kind of radar liquid level meter with blowing mechanism, guarantees that blowing effect can be completely covered to the outer surface of antenna, avoids the dew in part of area cannot be effectively removed, to guarantee that radar liquid level meter can be stably operated further.

[0006] The utility model discloses a technical scheme, a kind of radar liquid level meter with blowing mechanism, including radar liquid level meter body and rotating component;Radar liquid level meter body has antenna, and rotatingly connected with connecting frame on radar liquid level meter body, two connecting rods of symmetrical distribution are provided on connecting frame, annular pipe is provided on connecting rod, multiple annular array distribution's jet ports are provided on annular pipe, and fixed disc is provided on radar liquid level meter body;Rotating component includes the first gear coaxially arranged on connecting frame, the support plate being arranged on fixed disc, the micro motor being arranged on support plate, the main shaft being driven connected with micro motor, and the second gear coaxially arranged on main shaft, and main shaft and support plate are rotatably connected, and the first gear and the second gear are engagedly connected.

[0007] Preferably, the multiple jet ports are respectively directed towards different parts along the axial direction of the antenna.

[0008] Preferably, the connecting frame is provided with an annular groove, and the annular groove is internally provided with two symmetrically distributed semicircular inserts abutting each other, the semicircular inserts are provided with fixing blocks, four fixing bolts are penetratingly provided on the fixed disc, the fixing bolts are threadedly connected with the fixing blocks, and the semicircular inserts are rotatably connected with the connecting frame.

[0009] Preferably, the fixed disc is coaxially provided with a stabilizing ring, and the connecting frame is provided with a positioning groove for rotatably arranging the stabilizing ring.

[0010] Preferably, the connecting rod is provided with a threaded groove, and the fixed disc is provided with a through hole corresponding to the threaded groove.

[0011] Preferably, the annular pipe is provided with an air inlet pipe, the air inlet pipe is provided with a rotary joint, the air inlet pipe is communicatively provided with a gas conveying pipe, and the rotary joint and the end of the gas conveying pipe are rotatably connected.

[0012] Compared with the prior art, the utility model has the following beneficial technical effects:

[0013] The rotating component can adjust the position of the jet port, so that the multiple jet ports directed towards different parts along the axial direction of the antenna reciprocally rotate within a certain range, the blowing effect can completely cover the outer surface of the antenna, the condensation in some areas cannot be effectively removed, and the radar liquid level meter body can stably operate, thereby having good practicability. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the utility model embodiment;

[0015] Figure 2 It is a split schematic view of the overall structure of the utility model;

[0016] Figure 3 It is an enlarged schematic view of the structure of the annular pipe and the connecting frame.

[0017] Figure 4 It is the structural schematic view of the radar liquid level meter body.

[0018] The figure mark: 1, radar liquid level meter body;2, antenna;3, connecting frame;4, connecting rod;5, annular pipe;6, jet port;7, first gear;8, fixed disc;9, support plate;10, micro motor;11, main shaft;12, second gear;13, fixed block;14, semicircular plug;15, annular groove;16, fixed bolt;17, stabilizing ring;18, positioning groove;19, thread groove;20, through hole;21, air inlet pipe;22, gas delivery pipe;23, rotary joint. DETAILED DESCRIPTION

[0019] Example one

[0020] As Figures 1-4 shown, the radar liquid level meter with purging mechanism of the embodiment comprises a radar liquid level meter body 1 and a rotating assembly;The radar liquid level meter body 1 is provided with an antenna 2, and the radar liquid level meter body 1 is rotatably connected with a connecting frame 3, the connecting frame 3 is provided with two symmetrically distributed connecting rods 4, the connecting rod 4 is provided with an annular pipe 5, the annular pipe 5 is provided with a plurality of annular array distributed jet ports 6, the plurality of jet ports 6 are respectively directed to different parts along the axial direction of the antenna 2, and the radar liquid level meter body 1 is provided with a fixed disc 8.

[0021] The rotating assembly comprises a first gear 7 coaxially arranged on the connecting frame 3, a support plate 9 arranged on the fixed disc 8, a micro motor 10 arranged on the support plate 9, a main shaft 11 drivingly connected with the micro motor 10, and a second gear 12 coaxially arranged on the main shaft 11, the main shaft 11 and the support plate 9 are rotatably connected, the first gear 7 and the second gear 12 are meshingly connected, and a protective cover can be arranged on the outside of the micro motor 10 to protect the micro motor.

[0022] In the embodiment, the antenna 2 is purged through the jet port 6 on the annular pipe 5, the micro motor 10 is started to drive the main shaft 11 to rotate forward and backward, the main shaft 11 drives the first gear 7 to rotate, then the first gear 7 and the second gear 12 are meshingly connected, the second gear 12 drives the connecting frame 3 to rotate back and forth, and the angle of the connecting frame 3 rotating back and forth is 45° to 60°, the connecting frame 3 and the connecting rod 4 drive the annular pipe 5 to rotate, and then the position of the jet port 6 is adjusted, so that the jet port 6 directed to different parts along the axial direction of the antenna 2 rotates within a certain range, ensuring that the outer surface of the antenna 2 is completely covered and purged, avoiding the situation that part of the area cannot be effectively removed, ensuring that the radar liquid level meter body 1 can operate stably, and having good practicability.

[0023] Example two

[0024] As Figures 2-4 shown, compared with the first embodiment, the radar liquid level meter with a blowing mechanism in the embodiment is provided with an annular groove 15 on the connecting frame 3, the annular groove 15 is internally provided with two symmetrical and mutually adhering semicircular plug blocks 14, the semicircular plug blocks 14 are provided with fixing blocks 13, four fixing bolts 16 are through-set on the fixing disc 8, the fixing bolts 16 are threadedly connected with the fixing blocks 13, and the semicircular plug blocks 14 are rotationally connected with the connecting frame 3.

[0025] The connecting rod 4 is provided with a threaded groove 19, the fixing disc 8 is provided with a through hole 20 corresponding to the threaded groove 19, the fixing disc 8 is coaxially provided with a stabilizing ring 17, and the connecting frame 3 is provided with a positioning groove 18 for rotationally arranging the stabilizing ring 17.

[0026] In the embodiment, when the connecting frame 3 is installed on the radar liquid level meter body 1, the two semicircular plug blocks 14 are first inserted into the annular groove 15, then the positioning groove 18 on the connecting frame 3 is aligned with the stabilizing ring 17 and inserted, the stabilizing ring 17 plays a role of positioning installation and can improve the stability of the connecting frame 3 when rotating, then the connecting rod 4 is rotated to make the threaded groove 19 coaxial with the axis of the through hole 20, the bolt is penetrated through the through hole 20 and screwed into the threaded groove 19, the connecting frame 3 is pre-fixed to free the hands for subsequent installation operation, at this time, the fixing block 13 is just located at the position of the fixing bolt 16, then the fixing bolt 16 is penetrated through the fixing disc 8 and screwed into the fixing block 13, at this time, the fixing block 13 and the semicircular plug block 14 are fixed, thereby realizing the installation of the connecting frame 3, and finally the bolt screwed into the threaded groove 19 is removed to make the connecting frame 3 rotate.

[0027] Embodiment three

[0028] As Figure 2 and Figure 3 shown, compared with the first embodiment, the radar liquid level meter with a blowing mechanism in the embodiment is provided with an annular groove 15 on the connecting frame 3, the annular groove 15 is internally provided with two symmetrical and mutually adhering semicircular plug blocks 14, the semicircular plug blocks 14 are provided with fixing blocks 13, four fixing bolts 16 are through-set on the fixing disc 8, the fixing bolts 16 are threadedly connected with the fixing blocks 13, and the semicircular plug blocks 14 are rotationally connected with the connecting frame 3.

[0029] In the embodiment, the gas conveying pipe 22 is connected with an external air blower (not shown) for conveying the gas flow into the air inlet pipe 21 and finally spraying out from the air jet 6, the rotary joint 23 is used for flexibly installing the gas conveying pipe 22, and since the connecting frame 3 is repeatedly rotated at a certain angle, the rotary joint 23 can avoid the wear and leakage of the connection of the gas conveying pipe 22.

[0030] The new type of embodiment is described in detail, but the utility model is not limited to this, within the knowledge range of the technical personnel in the technical field, various changes can be made without departing from the utility model purposes.

Claims

1. A radar level gauge with a purging mechanism, characterized in that, include: The radar level gauge body (1) has an antenna (2) on it. A connecting frame (3) is rotatably connected to the radar level gauge body (1). Two symmetrically distributed connecting rods (4) are provided on the connecting frame (3). A ring tube (5) is provided on the connecting rod (4). Multiple air jets (6) are arranged in a ring array on the ring tube (5). A fixed plate (8) is provided on the radar level gauge body (1). The rotating assembly includes a first gear (7) coaxially mounted on a connecting frame (3), a support plate (9) mounted on a fixed disk (8), a micro motor (10) mounted on the support plate (9), a main shaft (11) driven and connected to the micro motor (10), and a second gear (12) coaxially mounted on the main shaft (11). The main shaft (11) and the support plate (9) are rotatably connected, and the first gear (7) and the second gear (12) are meshed.

2. The radar level gauge with a purging mechanism according to claim 1, characterized in that, Multiple jet nozzles (6) are oriented toward different parts along the axial direction of the antenna (2).

3. A radar level gauge with a purging mechanism according to claim 1, characterized in that, The connecting frame (3) is provided with an annular groove (15). Inside the annular groove (15) are two symmetrically distributed and mutually fitted semi-circular inserts (14). A fixing block (13) is provided on the semi-circular insert (14). Four fixing bolts (16) are provided through the fixing plate (8). The fixing bolts (16) and the fixing block (13) are threadedly connected. The semi-circular insert (14) and the connecting frame (3) are rotatably connected.

4. A radar level gauge with a purging mechanism according to claim 1, characterized in that, A stabilizing ring (17) is coaxially mounted on the fixed plate (8), and a positioning groove (18) is provided on the connecting frame (3) for the stabilizing ring (17) to rotate.

5. A radar level gauge with a purging mechanism according to claim 1, characterized in that, The connecting rod (4) is provided with a threaded groove (19), and the fixed plate (8) is provided with a through hole (20) corresponding to the threaded groove (19).

6. A radar level gauge with a purging mechanism according to claim 1, characterized in that, An air inlet pipe (21) is provided on the annular pipe (5), and a rotary joint (23) is provided on the air inlet pipe (21). An air supply pipe (22) is provided in connection with the air inlet pipe (21), and the ends of the rotary joint (23) and the air supply pipe (22) are rotatably connected.

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