Anti-blocking electromagnetic flowmeter

Abstract

The utility model discloses an anti-blocking electromagnetic flowmeter, and relates to the technical field of electromagnetic flowmeters. Comprising a pipe body provided with a flow measuring instrument, a blow-off pipe is installed at the bottom of the pipe body, a filter plate with filter holes in the surface is installed on the side, located on the blow-off pipe, of an inner cavity of the pipe body, the filter plate is rotatably connected with a rotating shaft, and the outer wall of the rotating shaft is fixedly connected with a connecting rod which is fixedly connected with a connecting ring. A brush attached to the filter plate is arranged on the side, attached to the filter plate, of the connecting rod, and the connecting ring is driven by a driving mechanism. According to the anti-blocking electromagnetic flowmeter, by arranging the filter plate, impurities contained in liquid flowing into the pipe body can be filtered out, the rotating shaft and the connecting rod are made to rotate by driving the connecting ring to rotate, and a brush arranged on the connecting rod can clean the surface of the filter plate so as to delay the blocking time of the filter plate.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic flowmeters, in particular to an electromagnetic flowmeter capable of preventing blockage. Background Art

[0002] The electromagnetic flowmeter is an instrument that uses the principle of electromagnetic induction to measure the flow rate of conductive fluid based on the induced electromotive force when the conductive fluid passes through an external magnetic field. The structure of the electromagnetic flowmeter is mainly composed of a magnetic circuit system, a measuring conduit, electrodes, a casing, a lining and a converter. The function of the magnetic circuit system is to generate a uniform DC or AC magnetic field. The electromagnetic flowmeter plays a very important role in flow monitoring.

[0003] The existing electromagnetic flowmeter is not convenient for filtering the liquid impurities flowing into the measuring tube during use. After long-term use, the impurities may clog the measuring tube, affecting the measurement effect and being detrimental to the detection of the measuring tube. Utility Model Content

[0004] The utility model provides an electromagnetic flowmeter capable of preventing blocking, so as to solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a blockage-proof electromagnetic flowmeter, comprising a tube body provided with a flow measuring instrument, a sewage pipe installed at the bottom of the tube body, an inner cavity of the tube body located on one side of the sewage pipe and a filter plate with filter holes installed on the surface, the filter plate is rotatably connected to a rotating shaft, a connecting rod is fixedly connected to the outer wall of the rotating shaft, a connecting rod is fixedly connected to a connecting ring, a brush that fits the filter plate is provided on one side of the connecting rod close to the filter plate, and the connecting ring is driven by a driving mechanism.

[0006] Furthermore, the driving mechanism includes a bar frame, a convex shaft and a movable rod, the outer wall of the connecting ring is fixedly connected to the convex shaft, one side of the connecting ring is liftably provided with a bar frame with a strip groove on the surface, the convex shaft passes through the strip groove of the bar frame, and the bottom of the bar frame is fixedly connected to a movable rod that extends into the sewage pipe.

[0007] Furthermore, the sewage pipe is connected with a fixed cylinder via a fixed rod, the movable rod passes through the inner cavity of the fixed cylinder, the outer wall of the movable rod is sleeved with a fixed ring, and a spring sleeved on the surface of the movable rod is provided between the fixed ring and the inner wall of the fixed cylinder.

[0008] Furthermore, flanges are installed on both sides of the tube body.

[0009] Furthermore, the sewage pipe is connected with a sealing cover.

[0010] Furthermore, the bottom end of the sewage pipe is integrally connected with a connecting pipe whose outer diameter is smaller than that of the sewage pipe and whose outer wall is provided with external threads, and the sewage pipe is connected to the sealing cover through the connecting pipe threads.

[0011] Compared with the prior art, the utility model provides an electromagnetic flowmeter that can prevent blockage, and has the following beneficial effects: the electromagnetic flowmeter that can prevent blockage can filter impurities contained in the liquid flowing into the pipe body by setting a filter plate, and by driving the rotation of the connecting ring, the rotating shaft and the connecting rod are rotated, and the brush arranged on the connecting rod can clean the surface of the filter plate to delay the clogging time of the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the planar structure of the utility model;

[0014] Figure 3 It is a structural schematic diagram of the filter plate of the utility model;

[0015] Figure 4 It is a structural schematic diagram of the connecting ring of the utility model;

[0016] Figure 5 It is an enlarged schematic diagram of point A of the present utility model.

[0017] In the figure: 1. pipe body; 2. flow meter; 3. drain pipe; 4. filter plate; 5. filter hole; 6. rotating shaft; 7. connecting rod; 8. connecting ring; 9. bar frame; 10. convex shaft; 11. movable rod; 12. fixed rod; 13. fixed cylinder; 14. spring; 15. fixed ring; 16. sealing cover. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-5The utility model discloses an electromagnetic flowmeter capable of preventing blockage, comprising a pipe body 1 provided with a flow measuring instrument 2, a sewage pipe 3 being installed at the bottom of the pipe body 1, a filter plate 4 with filter holes 5 being installed on the surface of the inner cavity of the pipe body 1 located on one side of the sewage pipe 3, the filter plate 4 being rotatably connected with a rotating shaft 6, a connecting rod 7 being fixedly connected with an outer wall of the rotating shaft 6, a connecting rod 7 being fixedly connected with a connecting ring 8, a brush fitting with the filter plate 4 being provided on one side of the connecting rod 7 close to the filter plate 4, and the connecting ring 8 being driven by a driving mechanism.

[0020] Flanges are installed on both sides of the pipe body 1.

[0021] Specifically, the driving mechanism includes a bar frame 9, a convex shaft 10 and a movable rod 11. The outer wall of the connecting ring 8 is fixedly connected with the convex shaft 10. One side of the connecting ring 8 is provided with a bar frame 9 with a strip groove on the surface which can be raised and lowered. The convex shaft 10 passes through the strip groove of the bar frame 9. The bottom of the bar frame 9 is fixedly connected with a movable rod 11 extending into the sewage pipe 3.

[0022] In this embodiment, the lifting and lowering of the movable rod 11 can drive the bar frame 9 to lift and lower. The inner wall of the bar groove on the bar frame 9 can contact the convex shaft 10, and the convex shaft 10 drives the connecting ring 8 to rotate. During the rotation of the convex shaft 10, it will slide in the bar groove on the bar frame 9. When the connecting ring 8 rotates, the brush on the connecting rod 7 can clean the filter plate 4.

[0023] The outer diameter of the connecting ring 8 is smaller than that of the filter plate 4 .

[0024] Specifically, the sewage pipe 3 is connected to a fixed cylinder 13 through a fixed rod 12, the movable rod 11 passes through the inner cavity of the fixed cylinder 13, the outer wall of the movable rod 11 is sleeved with a fixed ring 15, and a spring 14 sleeved on the surface of the movable rod 11 is provided between the fixed ring 15 and the inner wall of the fixed cylinder 13.

[0025] In this embodiment, during the lifting and lowering process of the movable rod 11, the cooperation of the fixing ring 15, the fixing tube 13 and the spring 14 can facilitate the lifting and lowering of the movable rod 11 during the pressing process.

[0026] Specifically, the sewage pipe 3 is connected with a sealing cover 16 .

[0027] The bottom end of the sewage pipe 3 is integrally connected with a connecting pipe whose outer diameter is smaller than that of the sewage pipe 3 and whose outer wall is provided with external threads. The sewage pipe 3 is connected to the sealing cover 16 through the connecting pipe thread.

[0028] In this embodiment, the cover 16 can cover the sewage pipe 3. When impurities are stored in the sewage pipe 3, the cover 16 can be removed to discharge sewage.

[0029] In summary, the anti-clogging electromagnetic flowmeter, by providing a filter plate 4, can filter the impurities contained in the liquid flowing into the tube body 1, and by driving the connecting ring 8 to rotate, the rotating shaft 6 and the connecting rod 7 are rotated. The brush provided on the connecting rod 7 can clean the surface of the filter plate 4 to delay the clogging time of the filter plate 4.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electromagnetic flowmeter capable of preventing blockage, comprising a pipe body (1) provided with a flow measuring instrument (2), characterized in that: A sewage pipe (3) is installed at the bottom of the pipe body (1); a filter plate (4) having filter holes (5) on its surface is installed in the inner cavity of the pipe body (1) on one side of the sewage pipe (3); the filter plate (4) is rotatably connected to a rotating shaft (6); a connecting rod (7) is fixedly connected to the outer wall of the rotating shaft (6); the connecting rod (7) is fixedly connected to a connecting ring (8); a brush that fits the filter plate (4) is provided on one side of the connecting rod (7) close to the filter plate (4); and the connecting ring (8) is driven by a driving mechanism.

2. The anti-blocking electromagnetic flowmeter according to claim 1, characterized in that: The driving mechanism comprises a bar frame (9), a convex shaft (10) and a movable rod (11); the outer wall of the connecting ring (8) is fixedly connected to the convex shaft (10); one side of the connecting ring (8) is provided with a bar frame (9) with a bar groove on its surface, which can be lifted and lowered; the convex shaft (10) passes through the bar groove of the bar frame (9); and the bottom of the bar frame (9) is fixedly connected to a movable rod (11) extending into the sewage pipe (3).

3. The anti-blocking electromagnetic flowmeter according to claim 2, characterized in that: The sewage pipe (3) is connected to a fixed cylinder (13) via a fixed rod (12); the movable rod (11) passes through the inner cavity of the fixed cylinder (13); a fixed ring (15) is sleeved on the outer wall of the movable rod (11); and a spring (14) sleeved on the surface of the movable rod (11) is provided between the fixed ring (15) and the inner wall of the fixed cylinder (13).

4. The anti-blocking electromagnetic flowmeter according to claim 1, characterized in that: Flanges are installed on both sides of the pipe body (1).

5. The anti-blocking electromagnetic flowmeter according to claim 1, characterized in that: The sewage discharge pipe (3) is connected to a sealing cover (16).

6. The anti-blocking electromagnetic flowmeter according to claim 5, characterized in that: The bottom end of the sewage discharge pipe (3) is integrally connected with a connecting pipe having an outer diameter smaller than that of the sewage discharge pipe (3) and an outer wall provided with external threads, and the sewage discharge pipe (3) is connected to the sealing cover (16) via the connecting pipe threads.

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