3D radar material level instrument and material level scanning imaging system

Abstract

The invention relates to a 3D radar material level instrument and a material level scanning imaging system, and belongs to the technical field of detection. The bearing frame is horizontally and rotatably connected to the mounting frame; the driving assembly is mounted on the mounting frame and used for driving the bearing frame to rotate; the swinging frame is connected to the bearing frame in a swinging manner; the swing assembly is mounted on the mounting frame and used for driving the swing frame to swing; the probe is mounted on the swing frame; the protective shell covers the mounting frame, the bearing frame, the driving assembly and the swing frame, and the swing assembly and the probe are arranged in the protective shell; and the protective shell is transparent at a position close to the probe. The method has the beneficial effect of improving the space utilization rate.

Description

Technical Field

[0001] The present application relates to the technical field of detection, and in particular to a 3D radar level meter and a level scanning imaging system. Background Art

[0002] In the related art, in order to realize the rotation of the 3D radar level meter, an external bracket is usually provided, and a rotation mechanism is arranged on the bracket to drive the 3D radar level meter to rotate as a whole; although the detection direction of the 3D radar level meter can be adjusted, the space occupied by the 3D radar level meter as a whole is increased, and the space utilization rate is not high. Summary of the invention

[0003] In order to improve space utilization, the present application provides a 3D radar level meter and a level scanning imaging system.

[0004] In the first aspect, the present application provides a 3D radar level meter, which adopts the following technical solution: A 3D radar level meter, comprising: Install the frame; A receiving frame, horizontally rotatably connected to the mounting frame; A driving assembly, mounted on the mounting frame, for driving the receiving frame to rotate; A swing frame, swingably connected to the receiving frame; A swing assembly, mounted on the mounting frame, and used to drive the swing frame to swing; A probe is mounted on the swing frame; A protective shell covers the mounting frame, the receiving frame, the driving assembly, the swing frame, the swing assembly and the probe; the protective shell is transparently arranged near the probe.

[0005] By adopting the above technical solution, after the driving component is started, the receiving frame can be driven to rotate horizontally; after the swing component is started, the swing frame can be driven to swing, thereby realizing all-round detection of the 3D radar level meter; since the relevant rotating structure of the probe is integrated in the protective shell, the overall space occupied by the 3D radar level meter is reduced, and the space utilization rate is high; and the mobile installation is relatively convenient.

[0006] Optionally, the driving component includes: A driving motor is mounted on the mounting frame, and an output shaft is coaxially fixedly connected with a driving main gear; The driving slave gear is installed on the receiving frame and meshes with the driving master gear.

[0007] By adopting the above technical solution, after the driving motor is activated, the driving main gear drives the driving slave gear to rotate, the driving slave gear drives the receiving frame to rotate, and the receiving frame drives the swing frame to rotate, thereby realizing the horizontal rotation of the probe.

[0008] Optionally, the swing assembly includes: A swing motor is mounted on the mounting frame; A swing main bevel gear is coaxially mounted on the output shaft of the swing motor; The swing slave bevel gear is installed on the swing frame and meshes with the swing master bevel gear.

[0009] By adopting the above technical solution, after the swing motor is started, it will drive the swing main bevel gear to rotate, and the swing main bevel gear drives the swing slave bevel gear to rotate, thereby driving the swing frame to swing and realizing the flipping of the probe.

[0010] Optionally, the swing assembly further includes: A limit switch is installed on the receiving frame; The limiting frame is coaxially fixedly connected to the output shaft of the swing motor.

[0011] By adopting the above technical solution, the limit frame rotates along with the output shaft of the swing motor, and the limit switch rotates along with the receiving frame. When the limit frame abuts against the limit switch, the swing motor or the drive motor stops moving. The setting of the limit frame and the limit switch limits the flipping angle and the horizontal rotation angle of the probe.

[0012] Optionally, the protective housing includes: A detection cover is transparent, and the probe is placed inside the detection cover; A protective cover, detachably connected to the detection cover; A protective cover plate is detachably connected to the protective cover.

[0013] By adopting the above technical solution, the protective shell is assembled from the detection cover, the protective cover and the protective cover plate, which is convenient for the later maintenance and replacement of the probe.

[0014] Optionally, the 3D radar level meter also includes: A mounting ring is fixedly connected to both ends of the protective cover and one end of the detection cover; the mounting ring is provided with a mounting rectangular groove, and the mounting ring on the detection cover is also provided with a mounting ring groove connected to the mounting rectangular groove; A locking rod, one end of which is fixedly connected with a locking block adapted to the mounting square groove; the locking block can be placed in the mounting ring groove through the mounting square groove, and is rotatably connected to the mounting ring through the mounting ring groove; An elastic hidden block, a hidden groove is provided on the protective cover plate, and the elastic hidden block is slidably connected with the protective cover plate through the hidden groove; the locking rod can pass through the hidden groove and the elastic hidden block; a nut groove is provided on the elastic hidden block; A hidden spring, coaxially sleeved on the locking rod and placed in the hidden groove; The locking nut is coaxially fixedly connected to the locking rod and is adapted to the nut groove; after the protective shell is installed, the end face of the locking nut, the end face of the locking rod, the surface of the elastic hidden block and the surface of the protective cover are flush.

[0015] By adopting the above technical solution, after the 3D radar level meter is installed, the safety of the probe can be improved and the anti-dismantling effect can be achieved.

[0016] Optionally, the 3D radar level meter also includes: A swivel joint, the swivel end of which is rotatably connected to the protective cover plate, and the fixed end of which is connected to an external water supply structure; The spiral heat dissipation pipe is sleeved on the outer wall of the protective cover, and the water inlet end is connected with the rotating end of the rotating joint, and the water outlet end is close to and arranged toward the detection cover; the water inlet end of the spiral heat dissipation pipe is connected with the first solenoid valve, and the water outlet end is connected with the second solenoid valve.

[0017] By adopting the above technical solution, after the first solenoid valve is opened, the heat dissipation water enters the spiral heat dissipation pipe and exchanges heat with the protective cover, thereby reducing the temperature of the relevant structure inside the protective cover and achieving the heat reduction effect of the 3D radar level meter. After the second solenoid valve is opened, the heat dissipation water can rinse the detection cover.

[0018] Optionally, the 3D radar level meter also includes: A rotating gear ring is coaxially rotatably connected to the fixed end of the rotating joint, and the teeth are arranged on the outer wall; An auxiliary plate, fixedly connected to the fixed end of the rotary joint; A rotating motor is mounted on the auxiliary plate, and an output shaft is coaxially fixedly connected with a rotating gear, and the rotating gear is meshed with the rotating gear ring; The rotating ring is coaxially fixedly connected to the water inlet end of the spiral heat dissipation pipe, is fixedly connected to the inner wall of the rotating gear ring, and is slidingly connected to the protective cover along the circumference of the protective cover.

[0019] By adopting the above technical solution, when flushing the detection cover, the rotating motor can be started, and the rotating motor drives the rotation of the rotating gear, thereby driving the rotation of the rotating ring gear, and the rotating ring gear drives the movement of the rotating ring to realize the circumferential movement of the rotating ring along the protective cover, and realize the rotation of the spiral heat dissipation tube, so as to comprehensively clean the detection cover.

[0020] Optionally, the 3D radar level meter also includes: A storage block, wherein a storage slot is provided on the side wall of the protective cover plate, and the storage block is slidably connected to the protective cover plate through the storage slot; and a cleaning slot is provided on the storage block; A cleaning cloth is placed in the cleaning tank.

[0021] By adopting the above technical solution, the detection cover can be wiped regularly to prevent dust from affecting the detection result of the probe.

[0022] In the second aspect, the present application provides a position scanning imaging system, which adopts the following technical solution: A level scanning imaging system, comprising: The above-mentioned 3D radar level meter is installed in the silo; A computer, used for receiving and displaying the data scanned and measured by the 3D radar level meter, and issuing adjustment instructions; The controller is used to receive the adjustment instruction and adjust the angle of the 3D radar level meter.

[0023] In summary, the present application has at least the following beneficial effects: 1. The purpose of setting up a protective shell cover to set up the installation frame, receiving frame, driving assembly, swing frame, swing assembly and probe is that the relevant rotating structure of the probe is integrated into the protective shell, thereby reducing the overall space occupied by the 3D radar level meter, and the space utilization rate is high; and the mobile installation is relatively convenient.

[0024] 2. The purpose of setting the limit switch and limit frame is that the limit frame rotates with the output shaft of the swing motor, and the limit switch rotates with the receiving frame. When the limit frame abuts against the limit switch, the swing motor or the drive motor stops moving; the setting of the limit frame and the limit switch limits the flip angle and horizontal rotation angle of the probe. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of an implementation method of the first embodiment of the present application; Figure 2 It is a structural schematic diagram of the relevant structure for driving the probe to rotate; Figure 3 It is a schematic diagram of the structure of the protective shell; Figure 4 yes Figure 3 A magnified schematic diagram of the structure of part A; Figure 5 yes Figure 3 A magnified schematic diagram of the structure of part B; Figure 6 It is a structural schematic diagram of the relevant structure on the protective cover plate; Figure 7It is a structural schematic diagram of the relevant structure of the flushing detection cover; Figure 8 yes Figure 7 A magnified schematic diagram of the structure of part C in the middle; Fig. 9 yes Figure 7 A schematic diagram of the structure after the rotating motor and the rotating ring gear are hidden; Fig.10 It is a schematic diagram of the communication structure of the second embodiment of the present application.

[0026] Description of reference numerals: 100, protective housing; 110, detection cover; 120, protective cover; 130, protective cover plate; 131, elastic hidden block; 132, hidden groove; 133, storage block; 134, blocking block; 140, mounting ring; 141, clamping groove; 142, mounting square groove; 143, mounting ring groove; 150, locking rod; 151, locking nut; 152, locking block; 160, hidden spring; 200, receiving frame; 210, barrel inner mounting plate; 300, driving assembly; 310, driving motor; 33 0. Drive main gear; 340. Drive slave gear; 400. Swing frame; 500. Swing assembly; 510. Swing main bevel gear; 520. Swing slave bevel gear; 530. Swing motor; 540. Limit frame; 550. Limit switch; 600. Probe; 700. Mounting frame; 801. Rotary joint; 802. Spiral heat pipe; 803. First solenoid valve; 804. Second solenoid valve; 805. Rotating gear ring; 806. Auxiliary plate; 807. Rotating motor; 808. Rotating gear; 809. Rotating ring. DETAILED DESCRIPTION

[0027] To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the following will be combined with the appended drawings of the embodiments of the present invention. Figure 1 -Attached Fig.10 , the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] The first embodiment of the present application discloses a 3D radar level meter. Figure 1As an embodiment of the 3D radar level meter, the 3D radar level meter may include a protective housing 100, and the protective housing 100 may include a detection cover 110, a protective cover 120, and a protective cover plate 130. The detection cover 110 is transparent, the protective cover 120 is detachably connected to the detection cover 110 by bolts, and the protective cover plate 130 is detachably connected to the protective cover 120 by bolts. The protective cover plate 130 may be connected to a display instrument, a host computer, or a meter head.

[0029] Reference Figure 2 The 3D radar level meter may further include a mounting frame 700 , a receiving frame 200 , a driving assembly 300 , a swing frame 400 , a swing assembly 500 and a probe 600 .

[0030] Among them, the receiving frame 200 is rotatably connected to the barrel mounting plate 210, and the barrel mounting plate 210 is installed on the end of the protective cover 120 away from the protective cover 130 by bolts, and the mounting frame 700 is placed inside the protective cover 120. The mounting frame 700 can be installed with components such as circuit boards and controllers, and the wires can pass through the protective cover 130 to connect with related external components. The driving assembly 300 is installed on the mounting frame 700 to drive the horizontal rotation of the receiving frame 200. The swing frame 400 is rotatably connected to the receiving frame 200; the swing assembly 500 is installed on the mounting frame 700 to drive the swing of the swing frame 400. The probe 600 is placed in the detection cover 110 and is installed on the swing frame 400.

[0031] The driving assembly 300 may include a driving motor 310, a driving main gear 330 and a driving slave gear 340; wherein the driving motor 310 is installed on the mounting frame 700, and the output shaft passes through the mounting frame 700; the driving main gear 330 is coaxially fixedly connected to one end of the output shaft passing through the mounting frame 700; the driving slave gear 340 is installed on the receiving frame 200 and meshes with the driving main gear 330, and the diameter of the driving main gear 330 is smaller than the diameter of the driving slave gear 340.

[0032] The swing assembly 500 may include a swing motor 530, a swing main bevel gear 510 and a swing slave bevel gear 520. The swing motor 530 is mounted on the mounting frame 700, and the output shaft of the swing motor 530 passes through the mounting frame 700 and is rotatably connected to the drive slave gear 340 through a bearing. The swing main bevel gear 510 is coaxially fixedly connected to one end of the swing motor 530 output shaft passing through the mounting frame 700; the swing frame 400 is rotatably connected to the receiving frame 200 through a rotating shaft, and the swing slave bevel gear 520 is coaxially fixedly connected to the rotating shaft, and the swing main bevel gear 510 is meshed with the swing slave bevel gear 520. When the swing slave bevel gear 520 rotates, it drives the swing frame 400 to swing.

[0033] In addition, the output shaft of the swing motor 530 is coaxially fixedly connected to the limit frame 540, and the limit switch 550 is also installed on the receiving frame 200; the limit frame 540 rotates following the output shaft of the swing motor 530, and the limit switch 550 rotates following the receiving frame 200; when the second limit frame 540 abuts against the second limit switch 550, the swing motor 530 and / or the drive motor 310 stops moving; the setting of the limit frame 540 and the limit switch 550 limits the flipping angle and horizontal rotation angle of the probe 600.

[0034] The implementation principle of this embodiment is: When the driving motor 310 is in motion, the driving main gear 330 drives the rotation of the driving slave gear 340, and the driving slave gear 340 drives the rotation of the receiving frame 200, and the receiving frame 200 drives the rotation of the swing frame 400, and the swing slave bevel gear 520 moves along the swing main bevel gear 510, so as to realize the horizontal rotation of the probe 600; when the limit frame 540 abuts against the limit switch 550, it means that the horizontal rotation of the probe 600 has reached the maximum angle, and the driving motor 310 stops. When the swing motor 530 is in motion, the swing main bevel gear 510 drives the swing slave bevel gear 520 to rotate, and the swing slave bevel gear 520 drives the swing frame 400 to rotate, thereby realizing the flipping of the probe 600; when the limit frame 540 abuts against the limit switch 550, it means that the probe 600 has flipped to the maximum angle, and the swing motor 530 stops moving; The probe 600 can be flipped while rotating horizontally, and the flipping and horizontal rotation of the probe 600 can also be performed separately and independently.

[0035] Reference Figure 3 and Figure 4 As another embodiment of the 3D radar level meter, a mounting ring 140 is coaxially fixedly connected to one end of the detection cover 110 and both ends of the protective cover 120, and a clamping groove 141 is provided on the mounting ring 140 of the detection cover 110 and the mounting ring 140 at one end of the protective cover 120 close to the protective cover 130. A clamping block is fixedly connected to the mounting ring 140 at one end of the protective cover 120 close to the detection cover 110 and the protective cover 130, and the clamping block can be clamped in the clamping groove 141. A mounting rectangular groove 142 is provided on the mounting ring 140, and a mounting ring groove 143 connected to the mounting rectangular groove 142 is also provided on the mounting ring 140 of the detection cover 110.

[0036] Reference Figure 3-Figure 5The 3D radar level meter may further include a locking rod 150, an elastic hidden block 131 and a locking nut 151. The locking rod 150 is fixedly connected with a locking block 152 adapted to the mounting square groove 142. After the locking block 152 is inserted into the mounting square groove 142 on the detection cover 110, the locking rod 150 is rotated so that the locking block 152 rotates in the mounting ring groove 143, so that the inner wall of the mounting ring 140 blocks the locking block 152.

[0037] A hidden groove 132 is provided on the protective cover plate 130, and the elastic hidden block 131 is slidably connected to the protective cover plate 130 through the hidden groove 132, and the locking rod 150 passes through the hidden groove 132 and the elastic hidden block 131. A hidden spring 160 is coaxially sleeved on the locking rod 150, and the hidden spring 160 is placed in the hidden groove 132 and abuts against the elastic hidden block 131. A nut groove adapted to the locking nut 151 is provided on the elastic hidden block 131, and the locking nut 151 is coaxially fixedly connected to the locking rod 150. In the initial state, the end face of the locking nut 151 is flush with the surface of the elastic hidden block 131 and the surface of the protective cover plate 130.

[0038] The implementation principle of this embodiment is: When disassembling the protective shell 100, press the elastic hidden block 131 to expose the locking nut 151, and then rotate the locking rod 150 through the locking nut 151 to align the locking block 152 with the installation rectangular groove 142, and then pull the locking rod 150 to disengage the locking block 152 from the installation rectangular groove 142, thereby realizing the disassembly of the detection cover 110, and then remove the protective cover 120 to realize the disassembly of the protective shell 100.

[0039] Of course, in order to facilitate the alignment of the locking block 152 and the installation groove 142, a mark can be made on the locking nut 151.

[0040] Further, refer to Figure 6 The 3D radar level meter may further include a storage block 133 and a cleaning cloth. A storage slot may be provided on the side wall of the protective cover 130, and the storage block 133 is slidably connected to the protective cover 130 through the storage slot. A cleaning slot is provided on the storage block 133, and the cleaning cloth may be placed in the cleaning slot. The storage block 133 may be regarded as a drawer. A groove may be provided on the outer wall of the storage block 133 to facilitate pulling the storage block 133.

[0041] In order to prevent the storage block 133 from being separated from the protective cover 130, a blocking block 134 is rotatably connected to the protective cover 130, and the blocking block 134 can abut against the protective cover 130; the blocking block 134 can only rotate when a large external force is applied.

[0042] Reference Figure 7-Figure 9Furthermore, a rotary joint 801 may be installed on the protective cover 130. The rotary end of the rotary joint 801 is rotatably connected to the protective cover 130. The fixed end of the rotary joint 801 is provided with a water inlet, which can be connected to an external water supply structure. The rotary end of the rotary joint 801 is connected to a spiral heat dissipation pipe 802, which is sleeved on the protective cover 120. The end of the spiral heat dissipation pipe 802 close to the rotary joint 801 is connected to a first solenoid valve 803. The water outlet end of the spiral heat dissipation pipe 802 is close to and faces the detection cover 110, so that the heat dissipation water flows to the detection cover 110; the water outlet end of the spiral heat dissipation pipe 802 is connected to a second solenoid valve 804.

[0043] In order to facilitate the flushing of the entire detection cover 110, a rotating ring gear 805 is rotatably connected to the fixed end of the rotating joint 801 through an end face bearing, and teeth are provided on the outer wall of the rotating ring gear 805. An auxiliary plate 806 is installed at the fixed end of the rotating joint 801, and a rotating motor 807 is installed on the auxiliary plate 806. The output shaft of the rotating motor 807 is coaxially fixedly connected to a rotating gear 808, and the rotating gear 808 is meshed with the outer wall of the rotating ring gear 805; a rotating ring 809 is coaxially fixedly connected to the water inlet end of the spiral heat dissipation pipe 802, and the rotating ring 809 is fixedly connected to the inner wall of the rotating ring gear 805, and the rotating ring 809 is slidingly connected to the protective cover 120 along the circumference of the protective cover 120.

[0044] After the first solenoid valve 803 is opened, the cooling water enters the spiral heat dissipation pipe 802 and exchanges heat with the protective cover 120, thereby reducing the temperature of the relevant structures inside the protective cover 120 and achieving the cooling effect of the 3D radar level meter. After the second solenoid valve 804 is opened, the cooling water can flush the detection cover 110. When flushing the detection cover 110, the rotating motor 807 can be started, and the rotating motor 807 drives the rotation of the rotating gear 808, thereby driving the rotation of the rotating ring gear 805, and the rotating ring gear 805 drives the movement of the rotating ring 809 to realize the circumferential movement of the rotating ring 809 along the protective cover 120, and realizes the rotation of the spiral heat dissipation pipe 802, so as to fully clean the detection cover 110.

[0045] It should be noted that the teeth of the rotating ring gear 805 and the rotating gear 808 are not shown, but this does not affect the meshing relationship between the two.

[0046] The second embodiment of the present application discloses a position scanning imaging system, referring to Fig.10 The level scanning imaging system may include a 3D radar level meter fixedly arranged on the top of the silo, a computer and a controller arranged outside the silo, and the 3D radar level meter is connected to the computer and the controller respectively through signal lines. The 3D radar level meter can send the scanned and measured data to the computer for display; the computer can send adjustment instructions to the controller, and the controller can control the adjustment of the angle of the 3D radar level meter.

[0047] The above are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application in sequence. Any feature disclosed in this specification (including the abstract and drawings), unless otherwise stated, can be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

Claims

1. A 3D radar level meter, characterized in that: include: Mounting Frame (700); A receiving frame (200) is horizontally rotatably connected to the mounting frame (700); A driving assembly (300) is mounted on the mounting frame (700) and is used to drive the receiving frame (200) to rotate; A swing frame (400) swingably connected to the receiving frame (200); A swing assembly (500) is mounted on the mounting frame (700) and is used to drive the swing frame (400) to swing; A probe (600) is mounted on the swing frame (400); A protective shell (100) covers the mounting frame (700), the receiving frame (200), the driving assembly (300), the swing frame (400), the swing assembly (500) and the probe (600); the protective shell (100) is transparently arranged near the probe (600).

2. A 3D radar level meter according to claim 1, characterized in that: The driving assembly (300) comprises: A driving motor (310) is mounted on the mounting frame (700), and an output shaft is coaxially fixedly connected to a driving main gear (330); The driving slave gear (340) is mounted on the receiving frame (200) and meshes with the driving master gear (330).

3. A 3D radar level meter according to claim 2, characterized in that: The swing assembly (500) comprises: A swing motor (530) mounted on the mounting frame (700); A swing main bevel gear (510) is coaxially mounted on the output shaft of the swing motor (530); The swing slave bevel gear (520) is mounted on the swing frame (400) and meshes with the swing master bevel gear (510).

4. A 3D radar level meter according to claim 3, characterized in that: The swing assembly (500) comprises: A swing motor (530) mounted on the mounting frame (700); A swing main bevel gear (510) is coaxially mounted on the output shaft of the swing motor (530); The swing slave bevel gear (520) is mounted on the swing frame (400) and meshes with the swing master bevel gear (510).

5. The 3D radar level meter according to claim 1, characterized in that: The protective housing (100) comprises: A detection cover (110) is transparent, and the probe (600) is placed inside the detection cover (110); A protective cover (120) detachably connected to the detection cover (110); The protective cover plate (130) is detachably connected to the protective cover (120).

6. The 3D radar level meter according to claim 5, characterized in that: The 3D radar level meter also includes: A mounting ring (140) is fixedly connected to both ends of the protective cover (120) and one end of the detection cover (110); a mounting rectangular groove (142) is formed on the mounting ring (140); and a mounting ring groove (143) communicating with the mounting rectangular groove (142) is also formed on the mounting ring (140) on the detection cover (110); A locking rod (150) having a locking block (152) fixedly connected at one end thereof and adapted to the mounting rectangular groove (142); the locking block (152) can be placed in the mounting ring groove (143) through the mounting rectangular groove (142), and is rotatably connected to the mounting ring (140) through the mounting ring groove (143); An elastic hidden block (131) is provided with a hidden groove (132) on the protective cover plate (130); the elastic hidden block (131) is slidably connected to the protective cover plate (130) via the hidden groove (132); the locking rod (150) can pass through the hidden groove (132) and the elastic hidden block (131); a nut groove is provided on the elastic hidden block (131); A hidden spring (160) is coaxially sleeved on the locking rod (150) and is placed in the hidden groove (132); A locking nut (151) is coaxially fixedly connected to the locking rod (150) and is adapted to the nut groove; after the protective housing (100) is installed, the end surface of the locking nut (151), the end surface of the locking rod (150), the surface of the elastic hidden block (131) and the surface of the protective cover plate (130) are flush.

7. The 3D radar level meter according to claim 5, characterized in that: The 3D radar level meter also includes: A rotary joint (801), the rotary end of which is rotatably connected to the protective cover plate (130), and the fixed end of which is in communication with an external water supply structure; The spiral heat dissipation pipe (802) is sleeved on the outer wall of the protective cover (120), and the water inlet end is connected to the rotating end of the rotating joint (801), and the water outlet end is arranged close to and facing the detection cover (110); the water inlet end of the spiral heat dissipation pipe (802) is connected to the first solenoid valve (803), and the water outlet end is connected to the second solenoid valve (804).

8. The 3D radar level meter according to claim 7, characterized in that: The 3D radar level meter also includes: A rotating gear ring (805) is coaxially rotatably connected to the fixed end of the rotating joint (801), and the teeth are arranged on the outer wall; An auxiliary plate (806) fixedly connected to a fixed end of the rotary joint (801); A rotating motor (807) is mounted on the auxiliary plate (806), and an output shaft is coaxially fixedly connected to a rotating gear (808), wherein the rotating gear (808) is meshed with the rotating gear ring (805); The rotating ring (809) is coaxially fixedly connected to the water inlet end of the spiral heat dissipation pipe (802), is fixedly connected to the inner wall of the rotating gear ring (805), and is slidingly connected to the protective cover (120) along the circumference of the protective cover (120).

9. The 3D radar level meter according to claim 8, characterized in that: The 3D radar level meter also includes: A storage block (133) is provided with a storage slot on the side wall of the protective cover plate (130), and the storage block (133) is slidably connected to the protective cover plate (130) via the storage slot; the storage block (133) is provided with a cleaning slot; A cleaning cloth is placed in the cleaning tank.

10. A level scanning imaging system, characterized in that: include: The 3D radar level meter as described in any one of claims 1 to 9, installed in a silo; A computer, used for receiving and displaying the data scanned and measured by the 3D radar level meter, and issuing adjustment instructions; The controller is used to receive the adjustment instruction and adjust the angle of the 3D radar level meter.

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