Radar material level metering device

Abstract

The invention relates to the technical field of radar material level metering, in particular to a radar material level metering device which comprises a radar sensing end, a first flange, a measuring cone opening, a second flange and a pipeline, the lower end of the radar sensing end is fixedly connected with the measuring cone opening, and the first flange is fixedly installed at the lower half portion of the radar sensing end. The radar sensing end and the measuring cone opening are jointly provided with a cleaning mechanism, the cleaning mechanism is used for cleaning residues attached to the surface of the measuring cone opening, and a fixing mechanism is arranged on the edge of the first flange. According to the cleaning device, the sliding block moves downwards along the inclined face of the trapezoidal protrusion and then moves upwards along the vertical face of the trapezoidal protrusion, the speed is increased, the collision force between the sliding block and the inner wall of the circular sliding way is increased, the sliding piece and the measuring cone opening vibrate, dregs fall off from the U-shaped plate and the measuring cone opening more easily, and the cleaning effect is further improved.

Description

Technical Field

[0001] This invention relates to the field of radar level measurement technology, and in particular to a radar level measurement device. Background Technology

[0002] A radar level gauge with a purging function, application number CN202011213980.5, includes a level gauge head. A level gauge probe is fixed to the bottom of the level gauge head, and a flared mouth is fixedly connected to the bottom of the level gauge probe via a flange. An air supply pipe supplied by an external air source is provided on the surface of the flared mouth, extending into the flared mouth and fixedly attached to a jet nozzle. An electric telescopic rod is fixedly connected to the lower surface of the flange. A placement plate is rotatably connected to the bottom of the telescopic rod via a rotating assembly. A cleaning component for cleaning the inner wall of the flared mouth is fixedly installed on the lower surface of the placement plate. This invention, through the combination of the above structures, enables the cleaning of adhering material from the inner wall of the flared mouth before each use. The operation is simple and convenient, and the cleaning of the adhering material from the inner wall of the flared mouth is more complete and thorough, improving the detection effect of the radar level gauge.

[0003] However, in the existing patents mentioned above, the inner wall of the horn head can be swept by a brush. However, the position of the brush is fixed. The fixed brush is not good at cleaning the inner wall of the horn head, resulting in incomplete cleaning of the inner wall of the horn head.

[0004] Application number CN116222696B discloses a radar level gauge with a purging function, comprising a radar level gauge body, a flange fixedly connected to the outer wall of the radar level gauge body, a flared mouth installed at the bottom of the radar level gauge body, an electrically driven rotating telescopic rod fixedly connected to the bottom of the flange, a connecting plate fixedly connected to the bottom of the electrically driven rotating telescopic rod, a motor fixedly connected to the top of the connecting plate, and a sealed box fixedly connected to the bottom of the connecting plate, wherein an air supply mechanism is provided inside the sealed box. This invention achieves good cleaning of the inner wall of the flared mouth through a rotating and moving brush; the nozzle can spray air to purge the inner wall of the flared mouth, and the up-and-down movement of the nozzle allows for a wide air spray range.

[0005] However, the existing patents mentioned above can only blow and sweep the inner wall of the horn head, and cannot clean the outer wall. Furthermore, the brush is not very effective at cleaning the inner wall of the horn head when it rotates and moves up and down, because the brush is easy to detach from the inner wall of the horn head when it moves downward, making it difficult to achieve a good cleaning effect. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a radar level measuring device to solve the technical problem that "existing patents can only blow and sweep the inner wall of the horn head, but cannot clean the outer wall, and the brush is not very effective at cleaning the inner wall of the horn head while rotating and moving up and down, because the brush is easy to detach from the inner wall of the horn head when it moves downward, making it difficult to achieve a good cleaning effect."

[0007] To achieve the above objectives, the present invention provides the following technical solution: A radar level measuring device includes a radar sensing end, a first flange, a measuring cone, a second flange, and a pipe. The lower end of the radar sensing end is fixedly connected to the measuring cone, and the first flange is fixedly installed in the lower half of the radar sensing end. A cleaning mechanism is provided on both the radar sensing end and the measuring cone. The cleaning mechanism is used to clean the residue adhering to the surface of the measuring cone. A fixing mechanism is provided at the edge of the first flange. The fixing mechanism is used to fix the first flange and the second flange. The first flange is placed on top of the second flange and matches the second flange. The pipe is fixed to the lower end face of the second flange. The cleaning mechanism includes a collar and a measuring cone. The collar is rotatably fitted onto the lower side wall of the radar sensing end. Multiple grooves are evenly spaced on the lower end face of the collar. A sliding plate is slidably connected within each groove. Two springs are symmetrically fixed to the side wall of the sliding plate. A fixing block is fixedly installed at the other end of each spring. The fixing block is fixedly installed on the inner wall of the groove. A U-shaped plate is provided at the center of the sliding plate. One end of the U-shaped plate is fixedly connected to the sliding plate, and the other end of the U-shaped plate extends along the outer wall of the measuring cone into the measuring cone and is close to the inner wall of the measuring cone. Brush bristles are provided on the side of the U-shaped plate near the measuring cone. The lower end of the measuring cone is provided with a circular slide, and multiple trapezoidal protrusions are provided inside the circular slide. A slider is slidably connected inside the circular slide, and the other end of the slider is fixedly installed on the inner wall of the U-shaped plate.

[0008] As a preferred embodiment of the present invention, the fixing mechanism includes multiple sets of fixing components arranged in a ring at the edges of flange No. 1 and flange No. 2. Each set of fixing components includes two L-shaped fixing plates and two limiting rods. The two L-shaped fixing plates abut against flange No. 1 and flange No. 2 respectively, and the two limiting rods are symmetrically fixed between the two L-shaped fixing plates.

[0009] As a preferred embodiment of the present invention, a first flange is vertically arranged between the two limiting rods. The upper end face of the first flange is threadedly connected to the upper L-shaped fixing plate, and the lower end of the first flange is rotatably connected to the lower L-shaped fixing plate. A worm gear is fixedly sleeved on the lower end of the first flange, and a worm is meshed on the worm gear. One end of the worm penetrates the side wall of the L-shaped fixing plate and is fixedly installed with a knob.

[0010] As a preferred embodiment of the present invention, the fixing component includes a plurality of fixing bolts, washers and nuts. The bolts pass through corresponding fixing holes on flange No. 1 and flange No. 2 and are threadedly connected to nuts. The nuts abut against the surface of flange No. 1 or flange No. 2, and washers are provided between the nuts and the surfaces of flange No. 1 and flange No. 2.

[0011] As a preferred embodiment of the present invention, the surface of the knob is provided with an anti-slip sleeve, the anti-slip sleeve is provided with anti-slip texture, and the upper L-shaped fixing plate is provided with a threaded groove that matches the upper end of the No. 1 flange, and the upper end of the No. 1 flange is threadedly connected in the threaded groove.

[0012] As a preferred embodiment of the present invention, the trapezoidal protrusion is a right-angled trapezoid with an inclined surface on the left and a vertical surface on the right.

[0013] As a preferred embodiment of the present invention, the inner wall of the pipe is coated with an anti-corrosion layer, which is an anti-corrosion paint.

[0014] This invention provides a radar level measuring device, which has the following beneficial effects: 1. During the rotation of the U-shaped plate around the measuring cone, the slider on the inner wall of the U-shaped plate slides along the circular slide at the bottom of the measuring cone. When the measuring cone passes the trapezoidal protrusion in the circular slide, the trapezoidal protrusion is a right-angled trapezoid with an inclined surface on the left and a vertical surface on the right. It will first slide along the inclined surface of the trapezoidal protrusion to the lowest point of the trapezoidal protrusion. The slider drives the U-shaped plate to slide down along the inclined surface of the measuring cone. The slider at the top of the U-shaped plate compresses the spring. When the slider continues to slide, the slider disengages from the trapezoidal protrusion. The spring force causes the slider to return to its original position, driving the slider to move up along the vertical side of the trapezoidal protrusion. The slider also slides up along the inclined surface of the measuring cone. The slider drives the bristles to slide up and down and rotate along the inclined surface, improving the cleaning effect of the bristles. 2. The slider moves down along the inclined surface of the trapezoidal protrusion and then up along the vertical side of the trapezoidal protrusion. As the speed increases, the collision force between the slider and the inner wall of the circular slide increases, causing the slide plate and measuring cone to vibrate. This makes it easier for the slag to fall off the U-shaped plate and the measuring cone, further improving the cleaning effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a front sectional view of the present invention; Figure 3 This is a side sectional view of the fixing component in this invention; Figure 4 This is a front view of the fixing component in this invention; Figure 5 This is a top view of the fixing component in this invention; Figure 6 for Figure 2 Enlarged structural diagram at point A in the middle; Figure 7 for Figure 2 Enlarged structural diagram at point B; Figure 8 The U-shaped plate in this invention; Figure 9 This is a side sectional view of the circular slide in this invention.

[0016] In the diagram: 1 slider, 2 circular slide, 201 trapezoidal protrusion, 3 U-shaped plate, 4 brush bristles, 5 measuring cone, 6 fixing block, 7 spring, 8 sliding plate, 9 slide groove, 10 collar, 11 radar sensing end, 12 knob, 13 flange No. 1, 14 limit rod, 15 L-shaped fixing plate, 16 pipe, 17 flange No. 2. Detailed Implementation

[0017] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0018] Therefore, a feature pointed out in this specification is used to describe one feature of one embodiment of the invention, and does not imply that every embodiment of the invention must have the described feature. Furthermore, it should be noted that this specification describes many features. Although certain features may be combined to illustrate possible system designs, these features may also be used in other combinations not explicitly stated. Therefore, unless otherwise stated, the described combinations are not intended to be limiting.

[0019] The principle and structure of the present invention will be described in detail below with reference to the accompanying drawings and embodiments: refer to Figure 1-9 A radar level measuring device includes a radar sensing end 11, a first flange 13, a measuring cone 5, a second flange 17, and a pipe 16. The lower end of the radar sensing end 11 is fixedly connected to the measuring cone 5, and the first flange 13 is fixedly installed in the lower half of the radar sensing end 11. A cleaning mechanism is provided on both the radar sensing end 11 and the measuring cone 5. The cleaning mechanism is used to clean the residue adhering to the surface of the measuring cone 5. A fixing mechanism is provided at the edge of the first flange 13. The fixing mechanism is used to fix the first flange 13 and the second flange 17. The first flange 13 is placed above the second flange 17 and matches the second flange 17. The pipe 16 is fixed to the lower end face of the second flange 17. The cleaning mechanism includes a collar 10 and a measuring cone 5. The collar 10 is rotatably sleeved on the lower side wall of the radar sensing end 11. Multiple sliding grooves 9 are equally spaced on the lower end face of the collar 10. A sliding piece 8 is slidably connected in the sliding groove 9. Two springs 7 are symmetrically fixed on the side wall of the sliding piece 8. A fixing block 6 is fixedly installed on the other end of the spring 7. The fixing block 6 is fixedly installed on the inner wall of the sliding groove 9. A U-shaped plate 3 is provided at the center of the sliding piece 8. One end of the U-shaped plate 3 is fixedly connected to the sliding piece 8. The other end of the U-shaped plate 3 extends along the outer wall of the measuring cone 5 into the measuring cone 5 and is close to the inner wall of the measuring cone 5. Brush bristles 4 are provided on the side of the U-shaped plate 3 near the measuring cone 5. The lower end of the measuring cone 5 is provided with a circular slide 2, and multiple trapezoidal protrusions 201 are provided inside the circular slide 2. A slider 1 is slidably connected inside the circular slide 2, and the other end of the slider 1 is fixedly installed on the inner wall of the U-shaped plate 3.

[0020] When cleaning is required, turn knob 12 to make the two L-shaped fixing plates 15 move away from each other and disengage from flange 13 and flange 17. Then separate flange 13 and flange 17, and then turn collar 10. Collar 10 drives U-shaped plate 3 to rotate. U-shaped plate 3 drives brush bristles 4 to rotate around measuring cone 5 to clean the residue on the outer and inner walls of measuring cone 5. The cleaning range is more comprehensive. As the U-shaped plate 3 rotates around the measuring cone 5, the slider 1 on the inner wall of the U-shaped plate 3 slides along the circular slide 2 at the bottom of the measuring cone 5. When the measuring cone 5 passes the trapezoidal protrusion 201 inside the circular slide 2 (the trapezoidal protrusion 201 is a right-angled trapezoid with an inclined surface on the left and a vertical surface on the right), it first slides along the inclined surface of the trapezoidal protrusion 201 to the lowest point of the trapezoidal protrusion 201. The slider 1 then drives the U-shaped plate 3 to slide down the inclined surface of the measuring cone 5. The slider 8 at the upper end of the U-shaped plate 3 compresses the spring 7. As the slider 1 continues to slide, it disengages from the trapezoidal protrusion 201, and the spring 7 releases its elasticity. The force causes the slider 8 to reset, which in turn moves the slider 1 upward along the vertical side of the trapezoidal protrusion 201. The slider 8 also slides upward along the inclined surface of the measuring cone 5. The slider 8 drives the bristles 4 to slide up and down and rotate along the inclined surface of 5, which improves the cleaning effect of the bristles 4. Furthermore, after the slider 1 moves down along the inclined surface of the trapezoidal protrusion 201, it moves up along the vertical side of the trapezoidal protrusion 201. The speed increases, and the collision force between the slider 1 and the inner wall of the circular slide 2 increases, causing the slider 8 and the measuring cone 5 to vibrate. This makes it easier for the debris to fall off the U-shaped plate 3 and the measuring cone 5, further improving the cleaning effect. The fixing mechanism includes multiple sets of fixing components, which are arranged in a ring around the edges of flange 13 and flange 27. Each set of fixing components includes two L-shaped fixing plates 15 and two limiting rods 14. The two L-shaped fixing plates 15 abut against flange 13 and flange 27 respectively. The two limiting rods 14 are symmetrically fixed between the two L-shaped fixing plates 15. Flange 13 is vertically arranged between the two limiting rods 14. The upper end of flange 13 is threaded into the upper L-shaped fixing plate 15, and the lower end of flange 13 is rotatably connected into the lower L-shaped fixing plate 15. A fixed sleeve is fitted onto the lower end of flange 13. A worm gear is fitted with a worm. One end of the worm passes through the side wall of the L-shaped fixing plate 15 and is fixedly mounted with a knob 12. During installation, rotating the knob 12 causes the worm gear to rotate, which in turn causes the first flange 13 to rotate. The rotation of the first flange 13 causes the two L-shaped fixing plates 15 to move relative to each other, clamping and fixing the first flange 13 and the second flange 17. This, in turn, fixes the pipe 16 to the outside of the measuring cone 5. When disassembly and cleaning are required, rotating the knob 12 in the opposite direction causes the two L-shaped fixing plates 15 to move away from the first flange 13 and the second flange 17, allowing the second flange 17 and the pipe 16 to be removed from the first flange 13.

[0021] The fixing assembly includes multiple fixing bolts, washers, and nuts. The bolts pass through the corresponding fixing holes on flange 13 and flange 27 and are threaded to the nuts. The nuts abut against the surface of flange 13 or flange 27. A washer is placed between the nut and the surface of flange 13 or flange 27. Through the cooperation of the fixing bolts, washers, and nuts, flange 13 or flange 2 can be disassembled and assembled.

[0022] The knob 12 has an anti-slip sleeve with anti-slip texture on its surface. The L-shaped fixing plate 15 above it has a threaded groove that matches the upper end of the first flange 13. The upper end of the first flange 13 is threaded into the threaded groove.

[0023] The inner wall of pipe 16 is coated with an anti-corrosion layer, which is an anti-corrosion paint, to improve the anti-corrosion capability of pipe 16.

[0024] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A radar level measuring device, comprising a radar sensing end (11), a first flange (13), a measuring cone (5), a second flange (17), and a pipe (16), characterized in that, The lower end of the radar sensing end (11) is fixedly connected to the measuring cone (5), and the No. 1 flange (13) is fixedly installed in the lower half of the radar sensing end (11). A cleaning mechanism is provided on both the radar sensing end (11) and the measuring cone (5). The cleaning mechanism is used to clean the residue adhering to the surface of the measuring cone (5). A fixing mechanism is provided at the edge of the first flange (13). The fixing mechanism is used to fix the first flange (13) and the second flange (17). The first flange (13) is placed above the second flange (17) and matches the second flange (17). The pipe (16) is fixed to the lower end face of the second flange (17). The cleaning mechanism includes a collar (10) and a measuring cone (5). The collar (10) is rotatably sleeved on the lower side wall of the radar sensing end (11). The lower end face of the collar (10) is provided with multiple sliding grooves (9) at equal intervals. A sliding piece (8) is slidably connected in the sliding groove (9). Two springs (7) are symmetrically fixed on the side wall of the sliding piece (8). A fixing block (6) is fixedly installed on the other end of the spring (7). The fixing block (6) is fixedly installed on the inner wall of the sliding groove (9). A U-shaped plate (3) is provided at the center of the sliding piece (8). One end of the U-shaped plate (3) is fixedly connected to the sliding piece (8). The other end of the U-shaped plate (3) extends along the outer wall of the measuring cone (5) into the measuring cone (5) and is close to the inner wall of the measuring cone (5). Brush bristles (4) are provided on the side of the U-shaped plate (3) near the measuring cone (5). The lower end of the measuring cone (5) is provided with a circular slide (2), and multiple trapezoidal protrusions (201) are provided in the circular slide (2). A slider (1) is slidably connected in the circular slide (2), and the other end of the slider (1) is fixedly installed on the inner wall of the U-shaped plate (3).

2. The radar level measuring device according to claim 1, characterized in that, The fixing mechanism includes multiple sets of fixing components, which are arranged in a ring around the edges of flange 1 (13) and flange 2 (17). Each set of fixing components includes two L-shaped fixing plates (15) and two limiting rods (14). The two L-shaped fixing plates (15) abut against flange 1 (13) and flange 2 (17) respectively, and the two limiting rods (14) are symmetrically fixed between the two L-shaped fixing plates (15).

3. The radar level measuring device according to claim 2, characterized in that, A flange (13) is vertically arranged between the two limiting rods (14). The upper end face of the flange (13) is threadedly connected to the upper L-shaped fixing plate (15). The lower end of the flange (13) is rotatably connected to the lower L-shaped fixing plate (15). A worm gear is fixedly sleeved on the lower end of the flange (13). A worm is meshed on the worm gear. One end of the worm penetrates the side wall of the L-shaped fixing plate (15) and a knob (12) is fixedly installed thereon.

4. The radar level measuring device according to claim 2, characterized in that, The fixing assembly includes multiple fixing bolts, washers and nuts. The bolts pass through corresponding fixing holes on flange 1 (13) and flange 2 (17) and are threaded to the nuts. The nuts abut against the surface of flange 1 (13) or flange 2 (17). A washer is provided between the nut and the surface of flange 1 (13) and flange 2 (17).

5. The radar level measuring device according to claim 1, characterized in that, The surface of the knob (12) is provided with an anti-slip sleeve, and the anti-slip sleeve is provided with anti-slip texture. The upper L-shaped fixing plate (15) is provided with a threaded groove that matches the upper end of the first flange (13). The upper end of the first flange (13) is threadedly connected in the threaded groove.

6. The radar level measuring device according to claim 1, characterized in that, The trapezoidal protrusion (201) is a right-angled trapezoid with a sloping left side and a vertical right side.

7. The radar level measuring device according to claim 1, characterized in that, The inner wall of the pipe (16) is coated with an anti-corrosion layer, which is an anti-corrosion paint.

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