Radar flowmeter with foreign matter interference prevention function

Abstract

The application discloses a radar flowmeter with foreign matter interference prevention function and relates to the technical field of radar flowmeters.The radar flowmeter comprises a radar flowmeter main body, and a mounting bracket is fixedly connected to the top of the radar flowmeter main body.The cooperation of components such as a double-shaft motor, a rotating shaft, a hollow rotating rod and multiple sharp blocks enables the rotation of the fixed rod to drive the hollow rotating rod to rotate, the rotation of the hollow rotating rod can knock or blow off foreign matters that are about to contact the radar flowmeter main body, thereby avoiding the problem that foreign matters cover the flow probe antenna screen or the liquid level probe antenna screen, leading to the inaccuracy of the flow probe antenna screen or the liquid level probe antenna screen in underground water measurement, and the rotation of the multiple sharp blocks can scatter foreign matters in the process of knocking or blowing off the foreign matters, thereby ensuring that the foreign matters cannot shield the flow probe antenna screen or the liquid level probe antenna screen.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of radar flow meters, in particular to a radar flow meter with foreign matter interference prevention function. BACKGROUND

[0002] The radar flow meter is a radar flow meter integrating liquid level measurement and flow rate measurement based on microwave technology, mainly applied to flow rate, water level or flow measurement of rivers, lakes, tides, reservoir gates, underground water, irrigation channels and the like; and is used for assisting water treatment operations, such as non-contact flow measurement of city water supply, sewage monitoring, flow calculation, inflow and outflow monitoring, etc. The product calculates flow by combining cross-section parameters, is not affected by wind, temperature, haze, silt, water surface floating objects and the like, is suitable for various measurement conditions, and can output real-time flow rate, water level and flow data. The product has the characteristics of low power consumption, small size, high reliability and convenient maintenance.

[0003] The patent with patent publication number CN220104207U discloses a radar flow meter, which comprises a radar flow meter, a radar water level meter is arranged in the radar flow meter, and an angle adjusting mechanism is arranged on the lower side of the radar water level meter. The angle adjusting mechanism comprises a connecting disc fixedly connected to the inside of the radar flow meter, and a rotating rod is rotatably connected to the upper side of the connecting disc. The patent improves the problem that the detection effect is not good because the radar flow meter can only be moved in position and cannot be adjusted in angle according to actual conditions and the surrounding environment. In the patent, the worm can drive the worm gear to rotate when rotating, so that the worm gear can drive the rotating rod and the radar water level meter to rotate together, the radar water level meter can realize angle adjustment through rotation, and the radar water level meter can be adjusted according to actual conditions and the surrounding environment, so that the detection effect is better.

[0004] However, the current radar flow meter has the following problems: when the radar flow meter is used for underground water, it is difficult to process foreign matters that will affect the use of the radar flow meter, so that the actual flow of the fluid is estimated incorrectly due to the existence of foreign matters, the flow estimation is inaccurate, and the accuracy of underground water flow monitoring and the reliability of data are affected. Therefore, we propose a radar flow meter with foreign matter interference prevention function. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a radar flow meter with foreign matter interference prevention function, which solves the problems raised in the background art.

[0006] In order to achieve the above object, the radar flowmeter with the foreign matter interference prevention function is realized by the following technical scheme: a radar flowmeter with a foreign matter interference prevention function, comprising a radar flowmeter body, a mounting bracket fixedly connected to the top of the radar flowmeter body, a flow rate probe antenna screen arranged on the lower inclined surface of the radar flowmeter body, a liquid level probe antenna screen arranged on the bottom of the radar flowmeter body, and a foreign matter interference prevention device arranged on the top of the radar flowmeter body, wherein the foreign matter interference prevention device comprises a fixing frame fixedly connected to the top of the radar flowmeter body, a double-shaft motor fixedly connected to the inner wall of the fixing frame, two output shafts of the double-shaft motor, two rotating shafts fixedly connected to the two output shafts of the double-shaft motor, two rotating wheels I fixedly connected to the outer walls of the two rotating shafts away from the double-shaft motor, two fixed columns fixedly connected to the two sides of the radar flowmeter body, two hollow rotating columns rotatably connected to the outer walls of the two fixed columns, a rotating wheel II fixedly connected to the outer wall of the hollow rotating column, a rubber belt in transmission connection between the rotating wheel II and the rotating wheel I, a rotating block fixedly connected to the end of the hollow rotating column away from the radar flowmeter body, a fixed rod fixedly connected to the outer wall of the rotating block, a hollow rotating rod rotatably connected to the outer wall of the fixed rod, and a plurality of multiple sharp blocks fixedly connected to the outer wall of the hollow rotating rod.

[0007] According to the above technical scheme, the end of the fixed column away from the radar flowmeter body is fixedly connected with a thin rod, the end of the thin rod away from the fixed column is fixedly connected with a large ring body, and the end of the hollow rotating rod close to the rotating block is fixedly connected with a small ring body. When the hollow rotating rod rotates, the rotation of the hollow rotating rod drives the small ring body to rotate. Since the rough surface of the small ring body is in contact with the rough surface of the large ring body, the small ring body rotates under the friction force of the rough surface of the small ring body and the rough surface of the large ring body. The rotation of the small ring body drives the hollow rotating rod to rotate on the outer wall of the fixed rod, and the rotation of the hollow rotating rod drives the multiple sharp blocks to rotate.

[0008] According to the technical scheme, the large ring body is provided with a rough surface on the side close to the radar flowmeter body, and the outer wall of the small ring body is provided with a rough surface; the rough surface of the large ring body is in contact with the rough surface of the small ring body.

[0009] According to the technical scheme, the top of the radar flowmeter body is provided with an anti-inclination device, the anti-inclination device comprises a U-shaped frame, the bottom of the U-shaped frame is fixedly connected to the top of the radar flowmeter body, the U-shaped frame is provided as an inclined surface, the U-shaped frame is fixedly connected with a rectangular drum bag, the bottom of the rectangular drum bag is fixedly connected with an L-shaped frame, the side of the L-shaped frame is fixedly connected to the side of the radar flowmeter body; when the mud on the top of the underground water cave falls, the mud will fall on the top of the rectangular drum bag; due to the gravity acceleration, the top of the rectangular drum bag will be subjected to pressure and thus deformed; after the pressure of the mud on the rectangular drum bag ends, the rectangular drum bag will be reset by the elastic force of itself.

[0010] According to the technical scheme, the inner wall of the rectangular drum bag is fixedly connected with a plurality of connecting small blocks above, the bottom of the plurality of connecting small blocks is fixedly connected with a same connecting plate, the bottom of the connecting plate is fixedly connected with an L-shaped resisting rod, the outer wall of the L-shaped resisting rod penetrates through the bottom of the rectangular drum bag above and slides thereon, the outer wall of the rotating shaft is fixedly connected with a plurality of L-shaped rods; when the rotating shaft rotates, the rotating shaft will drive the L-shaped rods to rotate; the rotation of the L-shaped rods will resist the lower outer wall of the L-shaped resisting rod, so that the L-shaped resisting rod moves downward; the downward movement of the L-shaped resisting rod will drive the connecting plate to move downward; the downward movement of the connecting plate will generate irregular tension on the top of the rectangular drum bag through the connecting small blocks, so that the top of the rectangular drum bag is irregularly deformed; when the rotation of the L-shaped rods does not resist the lower outer wall of the L-shaped resisting rod, the top of the rectangular drum bag will be reset by the elastic force of itself, thus driving the connecting small blocks, the connecting plate and the L-shaped resisting rod to be reset.

[0011] According to the technical scheme, the L-shaped resisting rod is located on the displacement track of the plurality of L-shaped rods.

[0012] According to the technical scheme, the anti-loosening device is arranged between the two rectangular drum bags, the anti-loosening device comprises a hollow pointed plate, the outer wall of the hollow pointed plate is fixedly connected between the two rectangular drum bags below, and the outer wall of the hollow pointed plate is fixedly connected with a plurality of partition blocks; when the mud on the top of the underground water cave falls, the hollow pointed plate can divide the falling mud into two halves and thus fall on the rectangular drum bags.

[0013] According to the technical scheme, the inner wall bottom of the hollow pointed plate is fixedly connected with an elastic expansion plate, the expansion end top of the elastic expansion plate is fixedly connected with a horizontal rod, the outer wall top of the horizontal rod is fixedly connected with a plurality of impact rods, one end of the horizontal rod is fixedly connected with a U-shaped long rod, the bottom of the connecting plate is fixedly connected with a U-shaped expansion rod, the fixed end of the U-shaped expansion rod penetrates and slides on the bottom of the rectangular drum, the end away from the horizontal rod of the U-shaped long rod is fixedly connected on the expansion end of the U-shaped expansion rod, the hollow pointed plate is located on the displacement track of the plurality of impact rods, when the connecting plate moves downward, the U-shaped expansion rod moves downward, the U-shaped expansion rod is compressed according to the moving distance, the U-shaped long rod moves downward, the horizontal rod moves downward, the elastic expansion plate is extruded, the horizontal rod moves downward and drives the impact rods to move away from the hollow pointed plate, when the rectangular drum resets by the elastic force, the elastic expansion plate drives the horizontal rod and the impact rods to impact the inner wall of the hollow pointed plate, so that the hollow pointed plate vibrates.

[0014] The application provides a radar flowmeter with a foreign matter interference prevention function.

[0015] (1) The cooperation of the double-shaft motor, the rotating shaft, the first rotating wheel, the fixed column, the hollow rotating column, the second rotating wheel, the rubber belt, the rotating block, the fixed rod, the hollow rotating rod and the multiple pointed blocks drives the hollow rotating rod to rotate by the rotation of the fixed rod, the rotation of the hollow rotating rod can knock or throw the foreign matter about to contact the radar flowmeter main body, thereby avoiding the problem that the foreign matter covers the flow probe antenna screen or the liquid level probe antenna screen, resulting in inaccurate measurement of underground water by the flow probe antenna screen or the liquid level probe antenna screen, and the rotation of the multiple pointed blocks can scatter the foreign matter during the knocking or throwing process, thereby ensuring that the foreign matter cannot shield the flow probe antenna screen or the liquid level probe antenna screen; meanwhile, the cooperation of the hollow rotating rod, the multiple pointed blocks, the thin rod, the large ring body and the small ring body drives the hollow rotating rod to rotate on the outer wall of the fixed rod by the rotation of the small ring body, the rotation of the hollow rotating rod drives the multiple pointed blocks to rotate, thereby crushing some large or flexible foreign matter, and further reducing the problem of interference of the flow probe antenna screen or the liquid level probe antenna screen by the foreign matter.

[0016] (2) The top of the rectangular drum sac is subjected to pressure through the cooperation of the U-shaped frame, the rectangular drum sac and the L-shaped frame, so that the rectangular drum sac deforms, and after the pressure of the mud on the rectangular drum sac ends, the rectangular drum sac resets through its own elastic force to repel the mud, thereby avoiding the problem that the mud falls on the radar flowmeter body, causing the radar flowmeter body to tilt under the action of gravity, so that the radar flowmeter body is difficult to accurately measure the underground water flow; meanwhile, through the cooperation of the rectangular drum sac, the connecting block, the connecting plate, the L-shaped resistance rod and the L-shaped rod, the rotation of the L-shaped rod does not resist the lower outer wall of the L-shaped resistance rod, and the top of the rectangular drum sac resets through its own elastic force, so that the connecting block, the connecting plate and the L-shaped resistance rod are reset, so that the mud is subjected to an irregular elastic force, and the rectangular drum sac can better repel the mud of different shapes, thereby more efficiently repelling the mud.

[0017] (3) The hollow pointed plate and the rectangular drum sac cooperate to divide the falling mud into two halves and drop them onto the rectangular drum sac, thereby avoiding the problem that the mud is too large, causing the descending speed to be too large, and causing the rectangular drum sac to be damaged; the inclined separation block of the hollow pointed plate can more effectively separate the larger mud; meanwhile, the hollow pointed plate, the elastic expansion plate, the cross rod, the impact rod, the U-shaped long rod, the U-shaped expansion rod and the rectangular drum sac cooperate to make the elastic expansion plate drive the cross rod and the impact rod to impact the inner wall of the hollow pointed plate, thereby causing the hollow pointed plate to vibrate, thereby avoiding the problem that the mud adheres to the hollow pointed plate and accumulates more and more, causing the radar flowmeter body to loosen under pressure; meanwhile, the rectangular drum sac, the elastic expansion plate, the cross rod, the U-shaped long rod and the U-shaped expansion rod cooperate to make the elastic expansion plate and the rectangular drum sac connected through the cross rod, the U-shaped long rod and the U-shaped expansion rod when resetting, so that the double elastic force of the elastic expansion plate and the rectangular drum sac, thereby ensuring the elastic force of the rectangular drum sac and prolonging the service life of the rectangular drum sac. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic view of the whole application;

[0019] Figure 2 is a structure schematic view of the antenna screen of the flow probe of the application;

[0020] Figure 3 is a local structure schematic view of the foreign matter interference prevention device of the application;

[0021] Figure 4 is a structure schematic view of A in the application Figure 3

[0022] Figure 5 ​For the invention rectangular drum sac structure schematic diagram;

[0023] Figure 6 For the invention L-shaped rod structure schematic diagram;

[0024] Figure 7 For the invention hollow pointed board structure schematic diagram;

[0025] Figure 8 For the invention Figure 7 B structure schematic diagram.

[0026] In the figure: 1, radar flowmeter main body; 2, mounting bracket; 3, flow probe antenna screen; 4, liquid level probe antenna screen; 5, anti-foreign interference device; 51, fixed frame; 52, double-shaft motor; 53, rotating shaft; 54, rotating wheel one; 55, fixed column; 56, hollow rotating column; 57, rotating wheel two; 58, rubber belt; 59, rotating block; 510, fixed rod; 511, hollow rotating rod; 5101, multiple pointed block; 512, thin rod; 513, large ring body; 514, small ring body; 6, anti-inclination device; 61, U-shaped frame; 62, rectangular drum sac; 63, L-shaped frame; 64, connecting small block; 65, connecting plate; 66, L-shaped resistance rod; 67, L-shaped rod; 7, anti-loosening device; 71, hollow pointed board; 72, elastic expansion plate; 73, cross rod; 74, impact rod; 75, U-shaped long rod; 76, U-shaped expansion rod. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments of the present application.

[0028] Please refer to Figures 1-8One embodiment of the present application is: a radar flowmeter with foreign matter interference prevention function, comprising a radar flowmeter body 1, the top of the radar flowmeter body 1 is fixedly connected with a mounting bracket 2, the lower inclined surface of the radar flowmeter body 1 is provided with a flow speed probe antenna screen 3, the bottom of the radar flowmeter body 1 is provided with a liquid level probe antenna screen 4, the top of the radar flowmeter body 1 is provided with a foreign matter interference prevention device 5, the foreign matter interference prevention device 5 comprises a fixing frame 51, the bottom of the fixing frame 51 is fixedly connected to the top of the radar flowmeter body 1, the inner wall of the fixing frame 51 is fixedly connected with a double-shaft motor 52, both output shafts of the double-shaft motor 52 are fixedly connected with rotating shafts 53, the outer walls of the two rotating shafts 53 away from the double-shaft motor 52 are both fixedly connected with rotating wheels one 54, both sides of the radar flowmeter body 1 are both fixedly connected with fixed columns 55, the outer walls of the two fixed columns 55 are both rotatably connected with hollow rotating columns 56, the outer wall of the hollow rotating column 56 is fixedly connected with a rotating wheel two 57, the rotating wheel two 57 and the rotating wheel one 54 are transmissionally connected with a rubber belt 58, one end of the hollow rotating column 56 away from the radar flowmeter body 1 is fixedly connected with a rotating block 59, the outer wall of the rotating block 59 is fixedly connected with a fixed rod 510, the outer wall of the fixed rod 510 is rotatably connected with a hollow rotating rod 511, the outer wall of the hollow rotating rod 511 is fixedly connected with a plurality of multiple sharp blocks 5101, through the above structure, the rotation of the hollow rotating rod 511 can knock or knock off the foreign matter about to contact the radar flowmeter body 1, so as to avoid the problem that the foreign matter covers the flow speed probe antenna screen 3 or the liquid level probe antenna screen 4, causing the flow speed probe antenna screen 3 or the liquid level probe antenna screen 4 to measure the underground water inaccurately, at the same time, the rotation of the hollow rotating rod 511 drives the multiple sharp blocks 5101 to rotate, the rotation of the multiple sharp blocks 5101 can scatter the foreign matter in the process of knocking or knocking off, so as to ensure that the foreign matter cannot shield the flow speed probe antenna screen 3 or the liquid level probe antenna screen 4.

[0029] The outer wall of one end of the fixed column 55 away from the radar flowmeter body 1 is fixedly connected with a thin rod 512, one end of the thin rod 512 away from the fixed column 55 is fixedly connected with a large ring body 513, the outer wall of one end of the hollow rotating rod 511 close to the rotating block 59 is fixedly connected with a small ring body 514, one side of the large ring body 513 close to the radar flowmeter body 1 is provided with a rough surface, the outer wall of the small ring body 514 is provided with a rough surface, the rough surface of the large ring body 513 and the rough surface of the small ring body 514 are in contact, through the above structure, the autorotation of the small ring body 514 can drive the hollow rotating rod 511 to autorotate on the outer wall of the fixed rod 510, the autorotation of the hollow rotating rod 511 drives the multiple sharp blocks 5101 to autorotate, so as to crush some large or flexible foreign matters, thereby further reducing the problem that the flow speed probe antenna screen 3 or the liquid level probe antenna screen 4 is interfered by foreign matters.

[0030] The top of the radar flowmeter body 1 is provided with an anti-inclination device 6, the anti-inclination device 6 comprises a U-shaped frame 61, the bottom of the U-shaped frame 61 is fixedly connected on the top of the radar flowmeter body 1, the U-shaped frame 61 is provided as an inclined plane, the U-shaped frame 61 is fixedly connected with a rectangular drum sac 62, the bottom of the rectangular drum sac 62 is fixedly connected with an L-shaped frame 63, the side of the L-shaped frame 63 is fixedly connected on the side of the radar flowmeter body 1, through the setting of the above structure, the rectangular drum sac 62 will reset through the elastic force of itself, and the mud block is bounced away, so that the mud block is prevented from falling on the radar flowmeter body 1, and the problem that the radar flowmeter body 1 is inclined under the action of gravity and the mud block is difficult to accurately measure the underground water flow.

[0031] The inner wall of the rectangular drum sac 62 is fixedly connected with a plurality of connecting small blocks 64, the bottom of the plurality of connecting small blocks 64 is fixedly connected with a same connecting plate 65, the bottom of the connecting plate 65 is fixedly connected with an L-shaped resisting rod 66, the outer wall of the L-shaped resisting rod 66 penetrates through and slides on the bottom of the rectangular drum sac 62, the outer wall of the rotating shaft 53 is fixedly connected with a plurality of L-shaped rods 67, through the setting of the above structure, the top of the rectangular drum sac 62 will reset through the elastic force of itself, so as to drive the connecting small blocks 64, the connecting plate 65 and the L-shaped resisting rod 66 to reset, so as to realize an irregular elastic force on the mud block, so that the rectangular drum sac 62 can better aim at mud blocks of different shapes, so as to more efficiently bounce the mud block.

[0032] In use, the radar flowmeter body 1 is fixed on the external positioning frame through the mounting bracket 2, then the flow probe antenna screen 3 measures the flow rate of underground water, and the liquid level probe antenna screen 4 measures the liquid level of underground water, so that the measurement of underground water is realized, then the double-shaft motor 52 is started, the two output shafts of the double-shaft motor 52 drive the two rotating shafts 53 to rotate respectively, the rotation of the two rotating shafts 53 drives the rotation of the two rotating wheels 54 respectively, the rotation of the rotating wheel 54 drives the rotation of the rotating wheel 57 through the rubber belt 58, the rotation of the rotating wheel 57 drives the hollow rotating column 56 to rotate on the outer wall of the fixed column 55, the rotation of the hollow rotating column 56 drives the rotation of the rotating block 59, the rotation of the rotating block 59 drives the rotation of the fixed rod 510, the rotation of the fixed rod 510 drives the rotation of the hollow rotating rod 511, the rotation of the hollow rotating rod 511 can knock off or blow away the foreign matter that is about to contact the radar flowmeter body 1 outside, so as to avoid the problem that the foreign matter covers the flow probe antenna screen 3 or the liquid level probe antenna screen 4, causing the flow probe antenna screen 3 or the liquid level probe antenna screen 4 to measure underground water inaccurately, and at the same time, the rotation of the hollow rotating rod 511 drives the rotation of the multiple sharp blocks 5101, the rotation of the multiple sharp blocks 5101 can scatter the foreign matter in the process of knocking off or blowing away the foreign matter, so as to ensure that the foreign matter cannot shield the flow probe antenna screen 3 or the liquid level probe antenna screen 4; when the hollow rotating rod 511 rotates, the rotation of the hollow rotating rod 511 drives the rotation of the small ring body 514, since the rough surface of the small ring body 514 is in contact with the rough surface of the large ring body 513, under the friction force of the rough surface of the small ring body 514 and the rough surface of the large ring body 513, the small ring body 514 rotates, the rotation of the small ring body 514 drives the hollow rotating rod 511 to rotate on the outer wall of the fixed rod 510, the rotation of the hollow rotating rod 511 drives the multiple sharp blocks 5101 to rotate, so that some large or flexible foreign matter can be crushed, thereby further reducing the problem that the flow probe antenna screen 3 or the liquid level probe antenna screen 4 is disturbed by foreign matter.

[0033] When the mud on the top of the groundwater cave falls, the mud will fall on the top of the rectangular drum sac 62, and due to the gravity acceleration, the top of the rectangular drum sac 62 will be deformed, and after the pressure of the mud on the rectangular drum sac 62 ends, the rectangular drum sac 62 will reset by its own elastic force to bounce the mud away, thereby avoiding the problem that the mud falls on the radar flowmeter body 1 and causes the radar flowmeter body 1 to tilt under the action of gravity, thereby making it difficult for the radar flowmeter body 1 to accurately measure the groundwater flow; when the shaft 53 rotates, the shaft 53 will drive the L-shaped rod 67 to rotate, and the rotation of the L-shaped rod 67 will touch the lower outer wall of the L-shaped touch rod 66, thereby causing the L-shaped touch rod 66 to move downward, and the downward movement of the L-shaped touch rod 66 will drive the connecting plate 65 to move downward, and the downward movement of the connecting plate 65 will generate an irregular tensile force on the top of the rectangular drum sac 62 through the connecting block 64, thereby causing the top of the rectangular drum sac 62 to deform irregularly, and when the rotation of the L-shaped rod 67 does not touch the lower outer wall of the L-shaped touch rod 66, the top of the rectangular drum sac 62 will reset by its own elastic force, thereby driving the connecting block 64, the connecting plate 65 and the L-shaped touch rod 66 to reset, so as to realize an irregular elastic force on the mud, so that the rectangular drum sac 62 can better deal with different shapes of mud, thereby more efficiently bouncing the mud away.

[0034] Please refer to Figures 1-8 On the basis of the above embodiment, in another embodiment of the application, a loosening prevention device 7 is arranged between the two rectangular drum sacs 62, the loosening prevention device 7 comprising a hollow pointed plate 71, the outer wall of the hollow pointed plate 71 being fixedly connected between the two rectangular drum sacs 62, and a plurality of partition blocks being fixedly connected to the outer wall of the hollow pointed plate 71, through the above structure, the hollow pointed plate 71 can divide the falling mud into two halves to fall on the rectangular drum sac 62, thereby avoiding the problem that the mud is too large and causes the falling speed to be too large, causing the rectangular drum sac 62 to be damaged, and the partition blocks on the inclined surface of the hollow pointed plate 71 can more effectively separate the larger mud.

[0035] The inner wall bottom of the hollow pointed plate 71 is fixedly connected with an elastic expansion plate 72, the top of the expansion end of the elastic expansion plate 72 is fixedly connected with a horizontal rod 73, the upper outer wall of the horizontal rod 73 is fixedly connected with a plurality of impact rods 74, one end of the horizontal rod 73 is fixedly connected with a U-shaped long rod 75, the bottom of the connecting plate 65 is fixedly connected with a U-shaped expansion rod 76, the fixed end of the U-shaped expansion rod 76 penetrates and slides on the bottom of the rectangular drum 62, the end away from the horizontal rod 73 of the U-shaped long rod 75 is fixedly connected on the expansion end of the U-shaped expansion rod 76, the hollow pointed plate 71 is located on the displacement track of the plurality of impact rods 74, through the setting of the above structure, the elastic expansion plate 72 will drive the horizontal rod 73 and the impact rod 74 to impact the inner wall of the hollow pointed plate 71, so that the hollow pointed plate 71 vibrates, thereby avoiding the problem that the mud adheres to the hollow pointed plate 71 and accumulates more and more, causing the radar flowmeter main body 1 to loosen under pressure.

[0036] When the mud at the top of the underground water hole falls, the hollow pointed plate 71 can divide the falling mud into two halves and fall onto the rectangular drum 62, avoiding the problem that the mud is too large, causing the falling speed to be too large, and causing the rectangular drum 62 to be damaged, the inclined surface of the hollow pointed plate 71 can more effectively separate the larger mud; when the connecting plate 65 moves downward, the U-shaped expansion rod 76 will move downward, the U-shaped expansion rod 76 will be compressed according to the downward movement distance, the downward movement of the U-shaped expansion rod 76 will drive the U-shaped long rod 75 to move downward, the downward movement of the U-shaped long rod 75 drives the horizontal rod 73 to move downward, the downward movement of the horizontal rod 73 will extrude the elastic expansion plate 72, at the same time, the downward movement of the horizontal rod 73 will drive the impact rod 74 to move away from the hollow pointed plate 71, while the rectangular drum 62 drives the connecting block 64, the connecting plate 65 and the L-shaped abutting rod 66 to reset by its own elastic force, the elastic expansion plate 72 will drive the horizontal rod 73 and the impact rod 74 to impact the inner wall of the hollow pointed plate 71, so that the hollow pointed plate 71 vibrates, thereby avoiding the problem that the mud adheres to the hollow pointed plate 71 and accumulates more and more, causing the radar flowmeter main body 1 to loosen under pressure; at the same time, the elastic expansion plate 72 and the rectangular drum 62 are connected through the horizontal rod 73, the U-shaped long rod 75 and the U-shaped expansion rod 76 when resetting, so that the elastic expansion plate 72 and the rectangular drum 62 have double elastic force, thereby ensuring the elastic force of the rectangular drum 62 and prolonging the service life of the rectangular drum 62.

[0037] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A radar flow meter with anti-foreign object interference function, comprising a radar flow meter body (1), wherein a mounting bracket (2) is fixedly connected to the top of the radar flow meter body (1), a flow velocity probe antenna screen (3) is provided on the lower inclined surface of the radar flow meter body (1), and a liquid level probe antenna screen (4) is provided on the bottom of the radar flow meter body (1), characterized in that: The top of the radar flowmeter body (1) is provided with a foreign matter interference prevention device (5), the bottom of the fixed frame (51) is fixedly connected to the top of the radar flowmeter body (1), the inner wall of the fixed frame (51) is fixedly connected with a double-shaft motor (52), the two output shafts of the double-shaft motor (52) are fixedly connected with rotating shafts (53), the outer walls of the two rotating shafts (53) away from the double-shaft motor (52) are fixedly connected with rotating wheels I (54), the two sides of the radar flowmeter body (1) are fixedly connected with fixed columns (55), the outer walls of the two fixed columns (55) are rotatably connected with hollow rotating columns (56), the outer wall of the hollow rotating column (56) is fixedly connected with a rotating wheel II (57), the rotating wheel II (57) and the rotating wheel I (54) are in transmission connection with a rubber belt (58), one end of the hollow rotating column (56) away from the radar flowmeter body (1) is fixedly connected with a rotating block (59), the outer wall of the rotating block (59) is fixedly connected with a fixed rod (510), the outer wall of the fixed rod (510) is rotatably connected with a hollow rotating rod (511), and the outer wall of the hollow rotating rod (511) is fixedly connected with a plurality of multiple sharp blocks (5101). The outer wall of one end of the fixed column (55) away from the radar flowmeter body (1) is fixedly connected with a thin rod (512), one end of the thin rod (512) away from the fixed column (55) is fixedly connected with a large ring body (513), and the outer wall of one end of the hollow rotating rod (511) close to the rotating block (59) is fixedly connected with a small ring body (514). The side close to the radar flowmeter body (1) of the large ring body (513) is provided with a rough surface, the outer wall of the small ring body (514) is provided with a rough surface, and the rough surface of the large ring body (513) is in contact with the rough surface of the small ring body (514).

2. The radar flow meter with a foreign object interference prevention function according to claim 1, characterized by: The top of the radar flowmeter body (1) is provided with an anti-inclination device (6), the bottom of the U-shaped frame (61) is fixedly connected to the top of the radar flowmeter body (1), the U-shaped frame (61) is provided as an inclined surface, the U-shaped frame (61) is fixedly connected with a rectangular drum sac (62), the bottom of the rectangular drum sac (62) is fixedly connected with an L-shaped frame (63), and the side of the L-shaped frame (63) is fixedly connected to the side of the radar flowmeter body (1).

3. The radar flow meter with a foreign object interference prevention function according to claim 2, characterized by: The inner wall of the rectangular drum sac (62) is fixedly connected with a plurality of connecting small blocks (64), the bottom of the plurality of connecting small blocks (64) is fixedly connected with a same connecting plate (65), the bottom of the connecting plate (65) is fixedly connected with an L-shaped resisting rod (66), the L-shaped resisting rod (66) penetrates through the bottom of the rectangular drum sac (62) and slides thereon, and the outer wall of the rotating shaft (53) is fixedly connected with a plurality of L-shaped rods (67).

4. The radar flow meter with a foreign object interference prevention function according to claim 3, characterized by: The L-shaped resisting rod (66) is located on the displacement track of the plurality of L-shaped rods (67).

5. The radar flow meter with a foreign object interference prevention function according to claim 3, characterized by: Two rectangular drum sacs (62) are provided with anti-loosening device (7), the anti-loosening device (7) includes hollow pointed board (71), the outer wall of the hollow pointed board (71) is fixedly connected between two rectangular drum sacs (62), the outer wall of the hollow pointed board (71) is fixedly connected with several partition blocks.

6. The radar flow meter with a foreign object interference prevention function according to claim 5, characterized by: The inner wall bottom of the hollow pointed board (71) is fixedly connected with elastic expansion plate (72), the telescopic end top of the elastic expansion plate (72) is fixedly connected with cross bar (73), the outer wall top of the cross bar (73) is fixedly connected with several impact rods (74), one end of the cross bar (73) is fixedly connected with U-shaped long rod (75), the bottom of the connecting plate (65) is fixedly connected with U-shaped expansion rod (76), the fixed end of the U-shaped expansion rod (76) penetrates and slides on the bottom of the rectangular drum sac (62), the end away from the cross bar (73) of the U-shaped long rod (75) is fixedly connected on the telescopic end of the U-shaped expansion rod (76), and the hollow pointed board (71) is located on the displacement track of the several impact rods (74).

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