Radar level meter with dustproof structure

Abstract

The utility model relates to the related technical field of radar level meters, in particular to a radar level meter with a dustproof structure, which comprises a level meter, a protective shell is fixedly connected to the lower surface of a universal disc, a dustproof mechanism is arranged in the protective shell, and a cleaning mechanism is arranged in the level meter. According to the radar level meter with the dustproof structure, through arrangement of a rotating block, a built-in shell, a sliding groove, a sliding column and an isolation plate, when detection is not carried out, the rotating block is firstly rotated to drive the built-in shell to rotate, and at the moment, when the built-in shell rotates, the sliding column is driven to slide inwards in the sliding groove; and then the two isolation plates are driven to inwards push the two isolation plates to be closed, so that the transmission hole is closed, dust is prevented from making contact with the receiver, the receiver is isolated, protection and dust prevention of the device are carried out, if detection needs to be carried out and the isolation plates are opened, the receiver can also normally operate, and the receiver is not affected by the dust.

Description

Technical Field

[0001] The utility model relates to the technical field related to radar level meters, in particular to a radar level meter with a dustproof structure. Background Art

[0002] Radar level meter is a microwave level meter. It is normally used in the industrial frequency band and has low beam energy. It can be installed in various metal or non-metal containers or pipes to perform non-contact continuous measurement of the level of liquids, slurries and granular materials. It is suitable for occasions with large changes in dust, temperature and pressure, and the presence of inert gas and steam. Different connectors are used in different occasions to make the radar level meter work better. When used in dusty places, certain protection is required. Therefore, a radar level meter with a dustproof structure is particularly needed.

[0003] However, the existing radar level meters with dust-proof structures are mostly not turned on all the time. When not working, if they are in a dusty device, the stirred dust will adhere to the receiver. If dust-proof treatment is not performed, it may affect the transmission of the signal, resulting in poor transmission, making the received signal unclear and unable to perform accurate measurement. Utility Model Content

[0004] The utility model aims to provide a radar level meter with a dustproof structure to solve the problem that most radar level meters with dustproof structures proposed in the above background technology are not always turned on. When not working, if they are in a dusty device, the stirred dust will adhere to the receiver. If dustproof treatment is not performed, the signal transmission may be affected, resulting in poor transmission, unclear received signals, and inability to perform accurate measurements.

[0005] To achieve the above object, the utility model provides the following technical solution: a radar level meter with a dustproof structure, comprising a level meter, a universal disk is threadedly connected to the lower part of the level meter, a protective shell is fixedly connected to the lower surface of the universal disk, a sound receiving tube is threadedly connected to the lower part of the protective shell, a receiver is arranged inside the level meter, a dustproof mechanism is arranged inside the protective shell, and a cleaning mechanism is arranged inside the level meter;

[0006] The dustproof mechanism includes an opening and closing groove, a rotating groove, a rotating block, a built-in shell, a sliding groove, an isolation plate, a transmission hole and a sliding column. The surface of the protective shell is provided with an opening and closing groove, the surface of the protective shell is provided with a rotating groove, a rotating block is arranged inside the rotating groove, one side of the surface of the rotating block is fixedly connected to the built-in shell, the surface of the built-in shell is provided with a sliding groove, the interior of the opening and closing groove is provided with an isolation plate, the surface of the built-in shell is provided with a transmission hole, and the surface of the isolation plate is fixedly connected to the sliding column.

[0007] Preferably, two groups of the opening and closing grooves are provided on the protective shell, and the outer side of the rotating block and the inner side of the rotating groove are in contact with each other.

[0008] Preferably, the inner side of the slide groove fits with the outer side surface of the slide column, and two groups of the slide grooves are provided on the built-in shell.

[0009] Preferably, the surface of the built-in shell is in contact with the inner side of the protective shell.

[0010] Preferably, the cleaning mechanism includes a purge interface, a transmission pipe, an air inlet pipe and an air outlet. A purge interface is provided on one side of the surface of the level meter, one end of the purge interface is fixedly connected to the transmission pipe, one end of the transmission pipe is fixedly connected to the air inlet pipe, and an air outlet is provided on the air inlet pipe.

[0011] Preferably, the air inlet pipe is arranged around the receiver, and eight groups of air outlet holes are opened on the air inlet pipe.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the radar level meter with a dustproof structure, through the arrangement of a rotating block, a built-in shell, a slide groove, a sliding column and a partition plate, when no detection is performed, the rotating block is first rotated, and then the built-in shell is driven to rotate. At this time, when the built-in shell rotates, it will drive the sliding column to slide inward in the slide groove, and then drive the partition plate to push the two isolation plates inward to close, so that the transmission hole is closed, dust is prevented from contacting the receiver, the receiver is isolated, the device is protected and dust-proof, and if detection is required, the partition plate can be opened, and the receiver can still operate normally without being affected by dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the side view of the appearance structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the opening and closing groove and the rotating groove cooperating with each other in the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the built-in shell and the rotating block cooperating with each other in the utility model;

[0016] Figure 4For this utility model Figure 2 Enlarged structural diagram at A in the middle.

[0017] In the figure: 1. level meter; 2. universal disk; 3. protective shell; 4. microphone; 5. receiver; 6. dustproof mechanism; 601. opening and closing slot; 602. rotating slot; 603. rotating block; 604. built-in shell; 605. slide slot; 606. isolation plate; 607. transmission hole; 608. sliding column; 7. cleaning mechanism; 701. purge interface; 702. transmission pipe; 703. air inlet pipe; 704. air outlet. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figure 1-4 The utility model provides a technical solution: a radar level meter with a dustproof structure, comprising a level meter 1, a universal disk 2 is threadedly connected to the lower part of the level meter 1, a protective shell 3 is fixedly connected to the lower surface of the universal disk 2, a sound receiving tube 4 is threadedly connected to the lower part of the protective shell 3, a receiver 5 is arranged inside the level meter 1, a dustproof mechanism 6 is arranged inside the protective shell 3, and a cleaning mechanism 7 is arranged inside the level meter 1;

[0020] The dustproof mechanism 6 includes an opening and closing groove 601, a rotating groove 602, a rotating block 603, a built-in shell 604, a sliding groove 605, an isolation plate 606, a transmission hole 607 and a sliding column 608. The surface of the protective shell 3 is provided with an opening and closing groove 601, the surface of the protective shell 3 is provided with a rotating groove 602, the rotating block 603 is arranged inside the rotating groove 602, one side of the surface of the rotating block 603 is fixedly connected to the built-in shell 604, the surface of the built-in shell 604 is provided with a sliding groove 605, the interior of the opening and closing groove 601 is provided with an isolation plate 606, the surface of the built-in shell 604 is provided with a transmission hole 607, and the surface of the isolation plate 606 is fixedly connected to the built-in shell 604. A sliding column 608 is fixedly connected. Through the arrangement of the opening and closing groove 601, the rotating groove 602, the rotating block 603, the built-in shell 604, the sliding groove 605, the isolation plate 606, the transmission hole 607 and the sliding column 608, dust prevention is required when not in operation. The rotating block 603 is rotated inside the rotating groove 602, and then the rotating block 603 drives the built-in shell 604 to rotate. When the built-in shell 604 rotates, the sliding groove 605 will slide inward, and then the sliding column 608 will slide along the sliding groove 605, driving the isolation plate 606 to close, and the transmission hole 607 is closed to block the dust.

[0021] Furthermore, two groups of opening and closing grooves 601 are provided on the protective shell 3, and the outer side of the rotating block 603 and the inner side of the rotating groove 602 are fitted together. By setting the opening and closing grooves 601 on the protective shell 3, the isolation plate 606 can be better opened and closed, and by setting the rotating block 603 and the rotating groove 602, the rotating block 603 can be more rotated.

[0022] Furthermore, the inner side of the slide groove 605 and the outer side surface of the sliding column 608 are in contact with each other, and two groups of slide grooves 605 are provided on the built-in shell 604. Through the setting of the slide groove 605 and the sliding column 608, the sliding column 608 can slide better in the slide groove 605, and through the setting of sliding on the built-in shell 604, it can better drive the isolation plate 606 to open and close.

[0023] Furthermore, the surface of the built-in shell 604 fits with the inner side of the protective shell 3 , and through the arrangement of the built-in shell 604 and the protective shell 3 , the built-in shell 604 can be rotated more conveniently.

[0024] Furthermore, the cleaning mechanism 7 includes a purge interface 701, a transmission tube 702, an air inlet pipe 703 and an air outlet 704. A purge interface 701 is provided on one side of the surface of the level meter 1, one end of the purge interface 701 is fixedly connected to the transmission tube 702, one end of the transmission tube 702 is fixedly connected to the air inlet pipe 703, and an air outlet 704 is provided on the air inlet pipe 703. Through the arrangement of the purge interface 701, the transmission tube 702, the air inlet pipe 703 and the air outlet 704, because dust isolation is not performed during operation, dust may adhere to the receiver 5. At this time, the purge interface 701 is connected to the air duct for blowing, so that air passes through the transmission tube 702 and then reaches the air inlet pipe 703, and then air is blown outward from the air outlet 704. Through the annular design of the air inlet pipe 703, the dust on the receiver 5 can be blown away to clean it.

[0025] Furthermore, the air inlet pipe 703 is arranged around the receiver 5, and eight groups of air outlet holes 704 are opened on the air inlet pipe 703. By setting the air inlet pipe 703 on the receiver 5, the dust can be better blown away, and by setting the air outlet holes 704 on the air inlet pipe 703, the blowing angle can be made more perfect.

[0026] Working principle: When the device is not detecting, first rotate the rotating block 603, and then drive the built-in shell 604 to rotate. At this time, when the built-in shell 604 rotates, it will drive the sliding column 608 to slide inward and then drive the isolation plate 606 to push inward. The two isolation plates 606 are closed, so that the transmission hole 607 is closed to prevent dust from contacting the receiver 5. When detection is required, the isolation plate 606 can be opened by the same operation. Then the level meter 1 sends a signal to detect the object. Then the sound wave signal bounces back to the sound tube 4, and then is transmitted to the receiver 5 through the sound tube 4. Then the receiver 5 transmits data to the internal radar antenna for detection. Dust may be stuck during the detection. At this time, the receiver 5 needs to be purged. First, the purge interface 701 is connected to the air duct for blowing. Then the wind blown in will enter the air inlet pipe 703 through the transmission pipe 702, and finally the air outlet 704 is used to discharge air to purge the receiver 5 to clean it.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A radar level meter with a dustproof structure, comprising a level meter (1), characterized in that: The level meter (1) is threadedly connected to a universal disk (2) at its lower side, a protective shell (3) is fixedly connected to the lower surface of the universal disk (2), a sound collecting tube (4) is threadedly connected to the lower side of the protective shell (3), a receiver (5) is arranged inside the level meter (1), a dustproof mechanism (6) is arranged inside the protective shell (3), and a cleaning mechanism (7) is arranged inside the level meter (1); The dustproof mechanism (6) comprises an opening and closing groove (601), a rotating groove (602), a rotating block (603), a built-in shell (604), a sliding groove (605), an isolation plate (606), a transmission hole (607) and a sliding column (608); the surface of the protective shell (3) is provided with an opening and closing groove (601); the surface of the protective shell (3) is provided with a rotating groove (602); the interior of the rotating groove (602) is provided with a rotating block (603); one side of the surface of the rotating block (603) is fixedly connected to the built-in shell (604); the surface of the built-in shell (604) is provided with a sliding groove (605); the interior of the opening and closing groove (601) is provided with an isolation plate (606); the surface of the built-in shell (604) is provided with a transmission hole (607); and the surface of the isolation plate (606) is fixedly connected to the sliding column (608).

2. The radar level meter with dustproof structure according to claim 1, characterized in that: Two groups of the opening and closing grooves (601) are provided on the protective shell (3), and the outer side of the rotating block (603) and the inner side of the rotating groove (602) are in contact with each other.

3. The radar level meter with dustproof structure according to claim 1, characterized in that: The inner side of the slide groove (605) is in contact with the outer side surface of the slide column (608), and two groups of the slide grooves (605) are provided on the inner shell (604).

4. The radar level meter with dustproof structure according to claim 1, characterized in that: The surface of the built-in shell (604) fits the inner side of the protective shell (3).

5. The radar level meter with dustproof structure according to claim 1, characterized in that: The cleaning mechanism (7) comprises a purge interface (701), a transmission tube (702), an air inlet pipe (703) and an air outlet hole (704); a purge interface (701) is provided on one side of the surface of the level meter (1); one end of the purge interface (701) is fixedly connected to the transmission tube (702); one end of the transmission tube (702) is fixedly connected to the air inlet pipe (703); and an air outlet hole (704) is provided on the air inlet pipe (703).

6. The radar level meter with dustproof structure according to claim 5, characterized in that: The air inlet pipe (703) is arranged around the receiver (5), and eight groups of air outlet holes (704) are opened on the air inlet pipe (703).

Images