Novel material lining structure of electromagnetic flow meter

Abstract

The utility model relates to a novel material lining structure of an electromagnetic flow instrument, and belongs to the technical field of novel material lining structures of electromagnetic flow instruments. Comprising an electromagnetic meter main body, a meter head fixed on the top surface of the electromagnetic meter main body, a lining pipe fixed on the inner wall of the electromagnetic meter main body, a protective layer fixed on the inner circumferential wall of the lining pipe, and a supporting mechanism arranged in the lining pipe, the supporting mechanism comprises an annular bin slidably connected to the interior of the lining pipe, a plurality of supporting plates arranged on the peripheral wall of the annular bin, and guide rods fixed to the sides, facing the annular bin, of the supporting plates and slidably connected with the annular bin. The connecting plates are fixed to the sides, away from the supporting plates, of the guide rods; and the driving assembly is arranged in the annular bin and used for controlling the multiple supporting plates to move. According to the novel material lining structure of the electromagnetic flow meter, the protective layer has better residual chlorine resistance, and meanwhile, the inner wall of the protective layer is smooth, so that the scaling problem caused by long-term use can be prevented.

Description

TECHNICAL FIELD

[0001] The application relates to a novel material lining structure of an electromagnetic flowmeter, in particular to a novel material lining structure of an electromagnetic flowmeter. BACKGROUND

[0002] The electromagnetic flowmeter is a widely used liquid flow online detection instrument, and is an instrument for measuring the flow of conductive fluid according to the electromotive force generated when the conductive fluid passes through an applied magnetic field by applying the electromagnetic induction principle. The structure mainly comprises a magnetic circuit system, a measuring conduit, electrodes, a shell, a lining and a converter.

[0003] For example, the Chinese patent (publication number: CN208155376U) discloses an inner lining die pressing type electromagnetic flowmeter, which comprises a meter head and a flowmeter body. The flowmeter body is an integral structure. The meter head is connected with the flowmeter body through a connecting assembly. The flowmeter body is provided with electrodes penetrating through the inner lining. The flowmeter body and the inner lining are provided with a magnetizing coil perpendicular to the electrodes. The middle position of the inner wall of the flowmeter body is provided with an integrally formed conical friction protrusion and a clamping strip. The protrusion and the clamping strip are uniformly distributed on the inner wall of the flowmeter body. The two sides of the flowmeter body are provided with adapter flanges. The two ends of the adapter flanges are provided with inner lining protective sleeves connected with the inner lining. The structure of the inner lining protective sleeve is matched with the structure of the inner lining. The inner lining protective sleeve has a circular ring protrusion structure, which has the advantages of prolonging the service life of the instrument, reducing the maintenance cost and ensuring the normal stability of production.

[0004] However, the above-mentioned search patent still has some deficiencies. The lining is an insulating rubber pipe made by die pressing. The rubber lining is not resistant to residual chlorine in tap water, and is prone to scaling after long-term use, which is not convenient to use. Therefore, the application provides a novel material lining structure of an electromagnetic flowmeter to solve the above problems. Content of the utility model

[0005] In view of the deficiencies of the prior art, the application provides a novel material lining structure of an electromagnetic flowmeter, which has the advantages of effectively preventing scaling after long-term use and better residual chlorine resistance, and solves the problem of inconvenience of using the rubber lining disclosed in the above-mentioned search patent.

[0006] To achieve the above-mentioned purpose, the application provides the following technical scheme: a novel material lining structure of an electromagnetic flowmeter, comprising an electromagnetic meter body, a meter head fixed on the top surface of the electromagnetic meter body, an inner lining pipe fixed on the inner wall of the electromagnetic meter body, a protective layer fixed on the inner circumferential wall of the inner lining pipe, and a supporting mechanism arranged in the inner lining pipe.

[0007] The support mechanism comprises an annular chamber slidably connected to the inside of the inner lining pipe, a plurality of support plates arranged on the peripheral wall of the annular chamber, a guide rod fixed on the side of the support plate facing the annular chamber and slidably connected with the annular chamber, a connecting plate fixed on the side of the guide rod away from the support plate, and a driving assembly arranged in the annular chamber for controlling the movement of the plurality of support plates.

[0008] By adopting the technical scheme, the inner lining pipe is provided with a protective layer, the protective layer has good corrosion resistance, has better residual chlorine resistance than traditional rubber lining, and the smooth inner wall of the protective layer can prevent scaling caused by long-term use; in addition, the protective layer also has a certain buffering and vibration absorbing effect, which reduces the water pressure of the fluid to protect the inner lining pipe; the support mechanism can support the inner lining pipe, increase the adhesion of the inner lining pipe in the electromagnetic table body, and improve the structural stability, which is more practical and convenient to use and promote.

[0009] Further, the driving assembly comprises an annular plate rotatably connected to the inner peripheral wall of the annular chamber, a plurality of extrusion blocks fixed on the outer peripheral wall of the annular plate, a cross rod fixed between the inner walls on the left and right sides of the annular plate, and a limiting piece arranged in the annular chamber, and the left and right inner walls of the annular chamber are each provided with a movable hole.

[0010] By adopting the technical scheme, when the support mechanism is installed, the annular plate is driven to rotate by the cross rod, the annular plate drives the plurality of extrusion blocks to revolve around the central axis of the annular chamber, so that the plurality of extrusion blocks extrude the plurality of connecting plates, and the plurality of support plates are driven to move synchronously by the driving assembly, so that the installation operation is simpler.

[0011] Further, the limiting piece comprises a telescopic rod fixed on the inner peripheral wall of the annular chamber, a spring sleeved on the outer peripheral wall of the telescopic rod, a limiting plate fixed on the side of the telescopic rod facing the annular plate, and a plug-in block fixed on the side of the limiting plate away from the telescopic rod, and the outer peripheral wall of the annular plate is provided with a plug-in hole for the plug-in block to plug in.

[0012] By adopting the technical scheme, when the annular plate rotates, the plug-in hole also revolves, and when the plug-in hole rotates to be opposite to the plug-in block, the spring pushes the plug-in block to plug into the inside of the plug-in hole to fix the annular plate, thereby maintaining the extrusion state of the connecting plate.

[0013] Further, the inner lining pipe is a metal pipe, and the protective layer is a polyurea coating.

[0014] By adopting the technical scheme, the most basic properties of polyurea are waterproof and wear-resistant, the polyurea coating forms the protective layer of the inner lining pipe, so as to improve the corrosion resistance, buffering and vibration absorbing capacity of the inner lining pipe, and improve the smoothness of the inner wall of the inner lining pipe.

[0015] Further, a guide hole is formed on the outer peripheral wall of the annular chamber for the guide rod to penetrate and be in sliding connection with the guide hole, and two guide rods are arranged on the same support plate.

[0016] By adopting the above technical scheme, the guide hole is arranged to cooperate with the guide rod to improve the stability of the support plate and guarantee the supporting capacity.

[0017] Further, the support plate is an arc-shaped plate, and a plurality of support plates are equidistantly distributed along the circumferential direction of the annular chamber.

[0018] By adopting the above technical scheme, the support of the support plate is more uniform, and the stability of the structure is further improved.

[0019] Further, the annular plate and the annular chamber are located on the same central axis, and a plurality of extrusion blocks are equidistantly distributed along the circumferential direction of the annular plate.

[0020] By adopting the above technical scheme, the plurality of extrusion blocks are arranged to extrude the plurality of connecting plates to move respectively, thereby achieving the effect of synchronously controlling the movement of the plurality of support plates.

[0021] Further, a disassembly hole is formed on the inner peripheral wall of the annular chamber opposite to the plug-in block, and the plug-in block is in clearance fit with the plug-in hole.

[0022] By adopting the above technical scheme, when the supporting mechanism needs to be disassembled, the plug-in block can be knocked out of the plug-in hole from the inside of the annular chamber through the disassembly hole, thereby releasing the limiting and fixing of the annular plate by the limiting piece, and providing convenience for disassembling the supporting mechanism.

[0023] Compared with the prior art, the technical scheme of the present application has the following beneficial effects:

[0024] 1. The novel material lining structure of the electromagnetic flowmeter has a protective layer arranged inside the lining pipe, the protective layer has good corrosion protection function, has better residual chlorine resistance than traditional rubber lining, the smooth inner wall of the protective layer can prevent scaling caused by long-term use, in addition, the protective layer also has a certain buffering and vibration absorbing effect, reduces the fluid water pressure to protect the lining pipe, the support mechanism arranged can support the lining pipe, increases the adhesion of the lining pipe in the electromagnetic meter body, improves the stability of the structure, is more practical, and is more convenient to popularize and use.

[0025] 2. The novel material lining structure of the electromagnetic flowmeter is mainly composed of an annular chamber and a support plate, the support plate can slide relative to the annular chamber, thereby facilitating the installation of the annular chamber into the lining pipe for support, the driving assembly drives the plurality of support plates to move synchronously, so that the installation operation is simpler, and the practicality of the device is further improved.

[0026] 3. The electromagnetic flowmeter new material lining structure, the protective layer is polyurea coating, the coating surface is smooth and can prevent the fouling problem caused by long-term use, and has good corrosion resistance and resistance to residual chlorine in tap water, finally the coating can play a buffering role to protect the lining pipe. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a front view of the present application;

[0028] Figure 2 is a perspective view of the lining pipe of the present application;

[0029] Figure 3 is a front view of the lining pipe of the present application;

[0030] Figure 4 is a side view of the support mechanism of the present application;

[0031] Figure 5 is an enlarged view of A in the present application Figure 4

[0032] In the figure: 1, electromagnetic meter body; 2, meter head; 3, lining pipe; 4, protective layer; 5, support mechanism; 501, annular bin; 502, support plate; 503, guide rod; 504, connecting plate; 6, driving assembly; 601, annular plate; 602, extrusion block; 603, cross bar; 604, movable hole; 605, telescopic rod; 606, spring; 607, limiting plate; 608, plug-in block; 609, plug-in hole. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0034] Please refer to Figures 1 to 3 ​The novel material lining structure of the electromagnetic flow meter in the embodiment comprises an electromagnetic meter body 1, a meter head 2 fixed on the top surface of the electromagnetic meter body 1, an inner lining pipe 3 fixed on the inner wall of the electromagnetic meter body 1, a protective layer 4 fixed on the inner circumferential wall of the inner lining pipe 3, and a supporting mechanism 5 arranged in the inner lining pipe 3. The inner lining pipe 3 is internally provided with the protective layer 4, the protective layer 4 has good corrosion protection function, has better residual chlorine resistance than the traditional rubber lining, and the inner wall of the protective layer 4 is smooth to prevent scaling caused by long-term use. In addition, the protective layer 4 also has a certain buffering and vibration absorbing effect, reduces the fluid water pressure to protect the inner lining pipe 3. The supporting mechanism 5 arranged can support the inner lining pipe 3, increase the adhesion of the inner lining pipe 3 in the electromagnetic meter body 1, improve the structural stability, and is more practical and convenient to use and promote.

[0035] It should be noted that the electromagnetic meter body 1 and the meter head 2 belong to the existing public technology, and therefore the specific structure and working principle thereof will not be described in detail.

[0036] The inner lining pipe 3 is a metal pipe, and the protective layer 4 is a polyurea coating. Polyurea is a substance generated by the reaction of components and is divided into pure polyurea and semi-polyurea. The most basic properties of polyurea are water resistance, wear resistance, etc. The polyurea coating has a certain ability to withstand high temperature and a special primer can ensure that the adhesion is not affected by negative pressure such as pipeline water stop. The polyurea coating forms the protective layer 4 of the inner lining pipe 3 to improve the corrosion resistance, buffering and vibration absorbing capacity of the inner lining pipe 3, and the smoothness of the inner wall of the inner lining pipe 3. The polyurea coating meets the sanitary level requirement and does not pollute the water body.

[0037] Please refer to Figures 1 to 4 The supporting mechanism 5 comprises an annular bin 501 slidably connected to the inside of the inner lining pipe 3, a plurality of support plates 502 arranged on the outer circumferential wall of the annular bin 501, a guide rod 503 fixed on one side of the support plate 502 facing the annular bin 501 and slidably connected with the annular bin 501, a connecting plate 504 fixed on the side of the guide rod 503 away from the support plate 502, and a driving assembly 6 arranged in the inside of the annular bin 501 for controlling the movement of the plurality of support plates 502. After the inner lining pipe 3 is installed in the electromagnetic meter body 1, the annular bin 501 is put into the inner lining pipe 3, and the driving assembly 6 is further operated to control the plurality of support plates 502 to slide away from the annular bin 501 in cooperation with the guide rod 503, so that the support plates 502 abut against the inner wall of the inner lining pipe 3 to form a support, thereby enhancing the adhesion of the inner lining pipe 3 to the electromagnetic meter body 1 and improving the structural stability.

[0038] The outer peripheral wall of the annular bin 501 is provided with a guide hole for the guide rod 503 to penetrate and slideably connect with the guide hole, two guide rods 503 are provided on the same support plate 502, the support plate 502 is an arc-shaped plate, and a plurality of support plates 502 are equidistantly distributed along the circumferential direction of the annular bin 501.

[0039] Please refer to Figures 1 to 3 In the embodiment, the driving assembly 6 comprises an annular plate 601 rotatably connected to the inner peripheral wall of the annular bin 501, a plurality of extrusion blocks 602 fixed to the outer peripheral wall of the annular plate 601, a cross bar 603 fixed between the inner walls on the left and right sides of the annular plate 601, and a limiting piece arranged in the interior of the annular bin 501. The inner walls on the left and right sides of the annular bin 501 are each provided with a movable hole 604. When the support mechanism 5 is installed, the cross bar 603 drives the annular plate 601 to rotate, the annular plate 601 drives the plurality of extrusion blocks 602 to revolve around the central axis of the annular bin 501, and the plurality of extrusion blocks 602 respectively extrude the plurality of connecting plates 504, so that the connecting plates 504 push the guide rods 503 and the support plates 502 to move and abut against the inner wall of the inner liner pipe 3, the synchronous movement of the plurality of support plates 502 is realized, the installation operation is simpler, and the practicality of the device is further improved.

[0040] In the embodiment, the annular plate 601 and the annular bin 501 are located on the same central axis, and the plurality of extrusion blocks 602 are equidistantly distributed along the circumferential direction of the annular plate 601.

[0041] Please refer to Figures 3 to 4 In the embodiment, the limiting piece comprises a telescopic rod 605 fixed to the inner peripheral wall of the annular bin 501, a spring 606 sleeved on the outer peripheral wall of the telescopic rod 605, a limiting plate 607 fixed to one side of the telescopic rod 605 facing the annular plate 601, and a plug-in block 608 fixed to one side of the limiting plate 607 away from the telescopic rod 605. The outer peripheral wall of the annular plate 601 is provided with a plug-in hole 609 for the plug-in block 608 to plug in. When the annular plate 601 rotates, the plug-in hole 609 also revolves. When the plug-in hole 609 rotates to be opposite to the plug-in block 608, the spring 606 pushes the limiting plate 607 to make the telescopic rod 605 extend, and further makes the plug-in block 608 plug into the interior of the plug-in hole 609 to fix the annular plate 601, and then the extrusion state of the connecting plate 504 is maintained.

[0042] In the embodiment, the inner peripheral wall of the annular bin 501 is provided with a dismounting hole opposite to the plug-in block 608, and the plug-in block 608 is gap-fitted with the plug-in hole 609. When the support mechanism 5 needs to be dismounted, the plug-in block 608 can be pushed out of the plug-in hole 609 from the inside of the annular bin 501 through the dismounting hole, and then the limiting of the limiting piece to the annular plate 601 is released, which provides convenience for the dismounting of the support mechanism 5.

[0043] The working principle of the above embodiment is:

[0044] (1) The protection layer 4 of the inner lining tube 3 is formed by the polyurea coating to improve the corrosion resistance and shock absorption capacity of the inner lining tube 3, and to improve the smoothness of the inner wall of the inner lining tube 3. After the inner lining tube 3 is installed inside the electromagnetic table body 1, the annular bin 501 is put into the inner lining tube 3, and further operation of the driving assembly 6 controls the sliding of the plurality of support plates 502 cooperating with the guide rods 503 away from the annular bin 501, so that the support plates 502 abut against the inner wall of the inner lining tube 3 to form a support, thereby strengthening the adhesion of the inner lining tube 3 and the electromagnetic table body 1 and improving the structural stability;

[0045] (2) When installing the supporting mechanism 5, the annular plate 601 is driven to rotate by the cross rod 603, and the plurality of extrusion blocks 602 are driven to revolve around the central axis of the annular bin 501 by the annular plate 601, so that the plurality of extrusion blocks 602 extrude the plurality of connecting plates 504 respectively, that is, the connecting plates 504 push the guide rods 503 and the support plates 502 to move and abut against the inner wall of the inner lining tube 3. When the annular plate 601 rotates, the plug-in hole 609 also revolves. When the plug-in hole 609 rotates to be opposite to the plug-in block 608, the spring 606 pushes the limiting plate 607 to make the telescopic rod 605 extend, and further makes the plug-in block 608 plug into the plug-in hole 609 to fix the annular plate 601, thereby maintaining the extrusion state of the connecting plate 504.

Claims

1. A novel material lining structure for an electromagnetic flow meter, characterized in that: It includes an electromagnetic meter body (1), a meter head (2) fixed on the top surface of the electromagnetic meter body (1), an inner liner tube (3) fixed on the inner wall of the electromagnetic meter body (1), a protective layer (4) fixed on the inner peripheral wall of the inner liner tube (3), and a support mechanism (5) disposed in the inner liner tube (3). The support mechanism (5) includes an annular chamber (501) slidably connected to the inside of the inner liner tube (3), a plurality of support plates (502) disposed on the outer peripheral wall of the annular chamber (501), a guide rod (503) fixed on the side of the support plate (502) facing the annular chamber (501) and slidably connected to the annular chamber (501), a connecting plate (504) fixed on the side of the guide rod (503) away from the support plate (502), and a drive assembly (6) disposed inside the annular chamber (501) for controlling the movement of the plurality of support plates (502).

2. The novel material lining structure for an electromagnetic flow meter according to claim 1, characterized in that: The drive assembly (6) includes an annular plate (601) rotatably connected to the inner peripheral wall of the annular chamber (501), a plurality of extrusion blocks (602) fixed to the outer peripheral wall of the annular plate (601), a crossbar (603) fixed between the inner walls of the left and right sides of the annular plate (601), and a limiting member disposed inside the annular chamber (501). The inner walls of the left and right sides of the annular chamber (501) are provided with movable holes (604).

3. The novel material lining structure for an electromagnetic flow meter according to claim 2, characterized in that: The limiting component includes a telescopic rod (605) fixed on the inner peripheral wall of the annular compartment (501), a spring (606) fitted on the outer peripheral wall of the telescopic rod (605), a limiting plate (607) fixed on the side of the telescopic rod (605) facing the annular plate (601), and a plug-in block (608) fixed on the side of the limiting plate (607) away from the telescopic rod (605). The outer peripheral wall of the annular plate (601) is provided with a plug-in hole (609) for the plug-in block (608) to be inserted.

4. The novel material lining structure for an electromagnetic flow meter according to claim 1, characterized in that: The inner lining tube (3) is a metal tube, and the protective layer (4) is a polyurea coating.

5. The novel material lining structure for an electromagnetic flow meter according to claim 1, characterized in that: The outer peripheral wall of the annular compartment (501) is provided with a guide hole for the guide rod (503) to pass through and slide with it. There are two guide rods (503) on the same support plate (502).

6. The novel material lining structure for an electromagnetic flow meter according to claim 1, characterized in that: The support plate (502) is an arc-shaped plate, and multiple support plates (502) are equidistantly distributed along the circumference of the annular compartment (501).

7. The novel material lining structure for an electromagnetic flow meter according to claim 2, characterized in that: The annular plate (601) and the annular chamber (501) are located on the same central axis, and the plurality of extrusion blocks (602) are equidistantly distributed along the circumference of the annular plate (601).

8. The novel material lining structure for an electromagnetic flow meter according to claim 3, characterized in that: The annular compartment (501) has a disassembly hole on its inner peripheral wall that is opposite to the plug-in block (608), and the plug-in block (608) and the plug-in hole (609) are in clearance fit.

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