Leakage-proof mechanism of flow meter

Abstract

The utility model provides a leak-proof mechanism of a flow meter, which comprises an instrument panel, the bottom end of the instrument panel is fixedly connected with a connecting pipe, the surface of the connecting pipe is fixedly connected with a pipe body, and two ends of the pipe body are fixedly connected with pipelines. Compared with the prior art, the utility model has the following beneficial effects: firstly, the convex ring is taken out, the convex ring with the thickness matched with that of the second sealing ring is replaced, meanwhile, the first sealing ring is arranged at the position of the circular groove in advance, and then the knob block is rotated, so that the threaded rod penetrates through the screw hole and the position of the first hole groove to rotate to the inside of the positioning hole; when one flange ring of the flow meter is in contact with the other flange ring, the second sealing ring is mounted on the surface of the convex ring, and the purpose of replacing the convex ring with the fixed thickness can be achieved; and the replaced convex ring can prevent the problem that the two flange rings excessively extrude the second sealing ring to damage the second sealing ring.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of leakage prevention mechanisms of flowmeter, belong to flowmeter field. BACKGROUND

[0002] Flow measurement is one of the components of measurement science and technology, which is closely related to national economy, national defense construction and scientific research. Good work in this regard is important for ensuring product quality, improving production efficiency and promoting the development of science and technology. In today's era of energy crisis and increasing industrial production automation, the role of flowmeter in the national economy is more obvious. Flowmeters are widely used in industrial and commercial applications to measure the flow of fluids (liquids or gases). To ensure the safe operation of flowmeters, preventing fluid leakage is very important.

[0003] In the prior art, a sealing ring and a bolt are used to prevent leakage when the flowmeter is in use. The sealing ring is the key to preventing fluid leakage, and the bolt tightens the connection between the flowmeter and the pipeline, ensuring that the flange surface is flat and undamaged. The center of the flange ring is usually fixed with a convex ring. The convex ring prevents the sealing ring from being damaged due to excessive compression of the bolt. At this time, the convex ring of the flange ring needs to be connected with the flowmeter pipeline, and then the sealing ring is placed in the convex ring, so that the convex ring and the sealing ring fit together. Since the thickness of the convex ring is fixed, when the convex ring uses a sealing ring of different thickness, the thicker sealing ring is prone to damage due to compression. This makes it difficult for sealing rings of different thicknesses to be used with the fixed thickness of the convex ring, so only sealing rings that match the thickness of the convex ring can be used, which is very inconvenient. SUMMARY

[0004] To address the deficiencies in the prior art, the utility model aims to provide a leakage prevention mechanism for flowmeter to solve the problems raised in the background art. The utility model can replace the convex ring of the flange ring according to the thickness of the second sealing ring.

[0005] To achieve the above-mentioned purpose, the utility model is implemented by the following technical solution: a leakage prevention mechanism for flowmeter, comprising a dashboard, the bottom end of the dashboard is fixedly connected with a connecting pipe, the surface of the connecting pipe is fixedly connected with a pipe body, both ends of the pipe body are fixedly connected with a pipeline, the pipeline is connected and fixed with a flange ring at the end away from the pipe body, the side of the flange ring away from the pipeline is provided with a convex ring.

[0006] The side surface of the convex ring is symmetrically provided with two positioning holes, a threaded rod is arranged in the positioning hole, a knob block is fixedly connected to the end of the threaded rod, a circular groove is formed in the middle of the back surface of the flange ring away from the pipeline, the convex ring is arranged in the circular groove, two detachable clamping plates are symmetrically arranged on the surface of the flange ring, an arc plate is fixedly connected to the side end of the clamping plate, a circular block is fixedly arranged at the end of the arc plate, the circular block is threadedly connected to the flange ring through the first bolt, a threaded rod is threadedly connected to the screw hole formed in the middle of the clamping plate, and a perforation is formed in the surface of the flange ring and arranged in the radial direction of the flange ring.

[0007] Further, the threaded rods in the screw holes of the clamping plates and the arc plates at the two ends of the clamping plates are staggered, and the positioning holes at the two sides of the convex ring correspond to the positions of the threaded rods.

[0008] Further, the circular groove is internally provided with a first sealing ring, and the first sealing ring is arranged between the convex ring and the inner wall of the circular groove.

[0009] Further, the top of the instrument panel is fixedly provided with a cover plate, a shaft rod is arranged at the middle of one side surface of the cover plate, a limiting block is fixedly connected to the end of the shaft rod, three second bolts penetrating through the limiting block and connected to the baffle are threadedly connected to the surface of the limiting block, a clamping ring is rotatably connected to the surface of the shaft rod, the surface of the clamping ring is fixedly connected to the baffle, a concave plate is fixedly connected to one end of the cover plate, a sliding block is slidably connected to the inside of the groove of the concave plate, a first sliding groove is formed in the side surface of the concave plate, and a pull block is slidably connected in the first sliding groove and fixedly connected to the side surface of the sliding block.

[0010] Further, the end of the shaft rod protruding from the back side of the cover plate is fixedly connected to an end block, and the end block is attached to the back surface of the cover plate and the instrument panel.

[0011] Further, the baffle is circular, the shape of the baffle is equivalent to the mirror surface shape of the surface of the instrument panel, the baffle is shielded on the surface of the instrument panel, and the concave plate is in the shape of "U".

[0012] The utility model discloses the beneficial effects that: first, the convex ring is taken out, the convex ring of the thickness matched with the second sealing ring is replaced, a first sealing ring is arranged in the position of the circular groove in advance, the threaded rod is rotated to the inside of the positioning hole through the screw hole and the first hole groove under the action, the position of the replaced convex ring is limited, when the flange ring of the flowmeter contacts with another flange ring, the second sealing ring is installed on the surface of the convex ring, the purpose of replacing the convex ring of the fixed thickness is achieved, the replaced convex ring can prevent the two flange rings from excessively extruding the second sealing ring and causing damage.

[0013] Second, when the need to make in the instrument panel is not used to cover the instrument panel, need to be fixed in the top surface of the instrument panel cover plate, so that the shaft rod protruding the position of the cover plate, this time will limit the block fixed in the end of the shaft rod, while the snap ring is clamped in the interval between the limit block and the cover plate, while the baffle covers the surface of the cover plate, the second bolt passes through the limit block and the surface of the baffle, so as to achieve the shielding of the surface of the instrument panel. BRIEF DESCRIPTION OF DRAWINGS

[0014] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments, read in conjunction with the accompanying drawings:

[0015] Figure 1 It is a whole structure schematic diagram of the anti-leakage mechanism of the flowmeter of the utility model;

[0016] Figure 2 It is a schematic diagram of the front view of the anti-leakage mechanism of the flowmeter of the utility model;

[0017] Figure 3 It is a schematic diagram of the side view of the anti-leakage mechanism of the flowmeter of the utility model;

[0018] Figure 4 It is a schematic diagram of the sectional stereoscopic structure of the flange ring in the anti-leakage mechanism of the flowmeter of the utility model;

[0019] Figure 5 It is Figure 4 The enlarged schematic diagram of A in the middle.

[0020] In the figure: 1, instrument panel; 2, connecting pipe; 3, pipe body; 301, pipeline; 302, flange ring; 303, convex ring; 4, positioning hole; 401, threaded rod; 402, knob block; 403, circular groove; 5, clamping plate; 501, arc plate; 502, circular block; 503, first bolt; 504, screw hole; 6, cover plate; 601, shaft rod; 602, limit block; 603, second bolt; 7, snap ring; 701, baffle; 8, concave plate; 801, sliding block; 802, pull block. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model is further described in conjunction with specific implementation manners.

[0022] Please refer to Figures 1 to 5The utility model provides a technical scheme: a leakage prevention mechanism of flowmeter, including instrument panel 1, the bottom fixedly connected with connecting pipe 2 of instrument panel 1, the surface fixedly connected with pipe body 3 of connecting pipe 2, both ends of pipe body 3 are fixedly connected with pipeline 301, one end of pipeline 301 away from pipe body 3 is connected with the fixed flange ring 302, and the side of flange ring 302 away from pipeline 301 is equipped with the convex ring 303;The threaded rod 401 in the screw hole 504 of the surface of the clamping plate 5 is staggered with the arc plate 501 at both ends of the clamping plate 5, and the positioning hole 4 on both sides of the convex ring 303 corresponds to the position of one threaded rod 401.

[0023] The inside of the circular groove 403 is provided with a first sealing ring, which is arranged between the convex ring 303 and the inner wall of the circular groove 403.

[0024] Two positioning holes 4 are symmetrically formed on the side surface of the convex ring 303, a threaded rod 401 is inserted into the positioning hole 4, a knob block 402 is fixedly connected to the end of the threaded rod 401, a circular groove 403 is formed in the middle of the surface of the flange ring 302 away from the pipeline 301, the convex ring 303 is located in the circular groove 403, two detachable clamping plates 5 are symmetrically installed on the surface of the flange ring 302, an arc plate 501 is fixedly connected to the side end of the clamping plate 5, a circular block 502 is fixedly arranged at the end of the arc plate 501, the circular block 502 is threadedly connected to the flange ring 302 through a first bolt 503, a threaded rod 401 is threadedly connected in the screw hole 504 formed in the middle of the clamping plate 5, perforations are formed on the surface of the flange ring 302 in the radial direction of the flange ring 302, and the threaded rod 401 penetrates the perforations.

[0025] Please refer to Figures 1 to 3 A cover plate 6 is fixedly arranged on the top of the instrument panel 1, a shaft rod 601 is installed in the middle of one side surface of the cover plate 6, a limit block 602 is fixedly connected to the end of the shaft rod 601, three second bolts 603 are threadedly connected to the surface of the limit block 602 and connected to the baffle 701, a clasp ring 7 is rotatably connected to the surface of the shaft rod 601, the baffle 701 is fixedly connected to the surface of the clasp ring 7, a concave plate 8 is fixedly connected to one end of the cover plate 6, a sliding block 801 is slidably connected in the recess of the concave plate 8, a first sliding groove is formed in the side surface of the concave plate 8, a pull block 802 is slidably connected in the first sliding groove, and the pull block 802 is fixedly connected to the side surface of the sliding block 801.

[0026] One end of the shaft rod 601 protruding from the back side of the cover plate 6 is fixedly connected with an end block, and the end block is attached to the back of the cover plate 6 and the instrument panel 1. The baffle 701 is circular, and the shape of the baffle 701 is equivalent to the mirror surface shape of the surface of the instrument panel 1. The baffle 701 is shielded on the surface of the instrument panel 1. The concave plate 8 is in the shape of "U".

[0027] Specifically, when the convex ring 303 needs to be replaced according to the different thickness of the second sealing ring, the clamping plate 5 is fixed on the surface of the flange ring 302 by using the first bolt 503 to pass through the round block 502 before the flange ring 302 contacts with another flange ring 302, and the threaded rod 401 contacts with the positioning hole 4, and then it is observed whether the convex ring 303 matches the thickness of the second sealing ring. When the thickness of the second sealing ring is different from the thickness of the convex ring 303, the knob block 402 is rotated to drive the threaded rod 401 to rotate, and the convex ring 303 is removed to replace the convex ring 303 with the thickness matching the second sealing ring, and a first sealing ring is arranged in the position of the circular groove 403 in advance to prevent water leakage between the flange ring 302 and the convex ring 303. The threaded rod 401 passes through the screw hole 504 and the first hole groove to the inside of the positioning hole 4 to limit the position of the replaced convex ring 303. When the flange ring 302 contacts with another flange ring 302, the second sealing ring is installed on the surface of the convex ring 303, so that the convex ring 303 with fixed thickness can be replaced, and the replaced convex ring 303 can prevent the two flange rings 302 from excessively pressing the sealing ring to cause damage;

[0028] Secondly, when it is needed to shield the instrument panel 1 when not in use, the cover plate 6 is fixed on the top surface of the instrument panel 1, the shaft rod 601 protrudes from the position of the cover plate 6, the limiting block 602 is fixed on the end of the shaft rod 601, the clamping ring 7 is clamped at the interval between the limiting block 602 and the cover plate 6, the baffle 701 covers the surface of the cover plate 6, the second bolt 603 passes through the limiting block 602 and contacts with the surface of the baffle 701, so that the surface of the instrument panel 1 is shielded. When the instrument panel 1 is used, the baffle 701 can be pushed away along the position of the clamping ring 7, the pull block 802 is pulled to make one end of the sliding block 801 out of the inside of the concave plate 8, and the surface of the baffle 701 contacts with the surface of the sliding block 801, so that the baffle 701 prevents the surface of the instrument panel 1 from being shielded when the instrument panel 1 is used.

[0029] Although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A leak-proof mechanism of a flow meter comprising a meter panel (1) characterized in that: The bottom end of the instrument panel (1) is fixedly connected with a connecting pipe (2), the surface of the connecting pipe (2) is fixedly connected with a pipe body (3), both ends of the pipe body (3) are fixedly connected with pipe ways (301), one end of the pipe way (301) away from the pipe body (3) is fixedly connected with a flange ring (302), one side of the flange ring (302) away from the pipe way (301) is provided with a convex ring (303); The side of the convex ring (303) is symmetrically provided with two positioning holes (4), the positioning holes (4) are inserted with threaded rods (401), the threaded rods (401) are fixedly connected with knob blocks (402) at the tail ends, a circular groove (403) is formed in the middle of the side of the flange ring (302) away from the pipe way (301), the convex ring (303) is located in the circular groove (403), the surface of the flange ring (302) is symmetrically provided with two detachable clamping plates (5), the side ends of the clamping plates (5) are fixedly connected with arc plates (501), the tail ends of the arc plates (501) are fixedly provided with circular blocks (502), the circular blocks (502) are threadedly connected with the flange ring (302) through first bolts (503), the screw holes (504) formed in the middle positions of the clamping plates (5) are threadedly connected with the threaded rods (401), the surface of the flange ring (302) is provided with perforations arranged along the radial direction of the flange ring (302), the threaded rods (401) penetrate through the perforations.

2. A leak-proof mechanism for a flow meter according to claim 1, wherein: The positions of the threaded rods (401) in the screw holes (504) of the surface of the clamping plates (5) and the arc plates (501) at both ends of the clamping plates (5) are staggered, the positioning holes (4) on both sides of the convex ring (303) correspond to the positions of the threaded rods (401) respectively.

3. The leak-proof mechanism of a flowmeter according to claim 1, wherein: The inside of the circular groove (403) is provided with a first sealing ring, the first sealing ring is arranged between the convex ring (303) and the inner wall of the circular groove (403).

4. The leak-proof mechanism of a flowmeter according to claim 1, wherein: The top of the instrument panel (1) is fixedly provided with a cover plate (6), the middle position of one side of the cover plate (6) is provided with a shaft rod (601), the tail end of the shaft rod (601) is fixedly connected with a limiting block (602), the surface of the limiting block (602) is threadedly connected with three second bolts (603) penetrating through the limiting block (602) and connected with a baffle (701), the surface of the shaft rod (601) is rotatably connected with a clamping ring (7), the surface of the clamping ring (7) is fixedly connected with the baffle (701), one end of the cover plate (6) is fixedly connected with a concave plate (8), the inside of the groove of the concave plate (8) is slidably connected with a sliding block (801), a first sliding groove is formed in the side of the concave plate (8), a pull block (802) is slidably connected in the first sliding groove, the pull block (802) is fixedly connected to the side of the sliding block (801).

5. A leak-proof mechanism for a flow meter according to claim 4, wherein: The end of the shaft rod (601) protruding from the back side of the cover plate (6) is fixedly connected with an end block, the end block is attached to the back of the cover plate (6) and the instrument panel (1).

6. A leak-proof mechanism for a flow meter according to claim 4, wherein: The baffle (701) is circular in shape and has a shape identical to the mirror surface of the surface of the dashboard (1), and is arranged to shield the surface of the dashboard (1). The concave plate (8) is "U"-shaped.

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