Single-flange transmitter

Abstract

The utility model discloses a single-flange transmitter. The single-flange transmitter comprises a single-flange transmitter main body and an annular air bag, the single-flange transmitter main body is connected with a flange, the flange is provided with an isolation diaphragm, and the isolation diaphragm is electrically connected with the single-flange transmitter main body; the annular air bag is embedded in the flange, the annular air bag is connected with an air pipe, the air pipe is provided with a plugging mechanism, the plugging mechanism is arranged in the flange, the flange is provided with a plurality of flange holes which are uniformly distributed on the circumference, and the diameter of the circumference where the plurality of flange holes are located is larger than that of the annular air bag. The annular air bag can play a sealing role, so that a measuring medium is not easy to leak from a flange joint, and the diameter of the annular air bag is larger than that of the isolation diaphragm. According to the utility model, through the arrangement of corresponding mechanisms, the sealing performance of the single-flange transmitter can be improved, the probability of leakage of a measurement medium can be further reduced, and the single-flange transmitter can be safely used.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of transmitter, specifically relates to a single flange transmitter. BACKGROUND

[0002] Single flange transmitter is a kind of field transmitter directly installed on pipeline or container, it is based on pressure sensing principle, the height of current liquid is calculated by the density and pressure variation of liquid. Since the isolation diaphragm is directly contacted with liquid medium, the positive pressure side does not need to be led out by pressure guide pipe, therefore the liquid level, pressure and density of medium such as high temperature, high viscosity, easy crystallization, easy precipitation and strong corrosion can be measured, then it is converted into corresponding signal output.Single flange transmitter is suitable for the precision measurement of the liquid level, density of various container tanks, especially suitable for the measurement of high viscosity medium or suspended liquid.

[0003] The existing single flange transmitter lacks corresponding sealing mechanism between flanges when being connected and used, so that the measuring medium is easy to leak from the flange connection, which further easily increases the use risk of single flange transmitter, and also has certain safety hazard.

[0004] Therefore, in view of the above technical problems, it is necessary to provide a single flange transmitter.

[0005] The information disclosed in this BACKGROUND section is only intended to increase an understanding of the general background of the application, and should not be construed as recognition or any form of suggestion that this information constitutes prior art that is already known to those skilled in the art. SUMMARY

[0006] The utility model aims at providing a single flange transmitter, which can solve the problem of poor sealing effect of single flange transmitter.

[0007] In order to achieve the above-mentioned purpose, the technical scheme provided by the utility model in one specific embodiment is as follows:

[0008] A single flange transmitter, comprising: a single flange transmitter main body and an annular air bag;

[0009] The single flange transmitter main body is connected with a flange, the flange is installed with an isolation diaphragm, and the isolation diaphragm is electrically connected with the single flange transmitter main body;

[0010] The annular air bag is embedded on the flange, the annular air bag is connected with an air pipe, the air pipe is installed with a plugging mechanism, and the plugging mechanism is arranged in the flange.

[0011] In one or more embodiments of the utility model, the flange is provided with a plurality of flange holes evenly distributed in a circle, the diameter of the circle where the plurality of flange holes are located is greater than the diameter of the annular air bag, when the single-flange transmitter body is installed and used, the annular air bag can play a sealing role, so that the measuring medium is not easy to leak from the flange connection.

[0012] In one or more embodiments of the utility model, the diameter of the annular air bag is greater than the diameter of the isolation diaphragm.

[0013] In one or more embodiments of the utility model, the plugging mechanism comprises a hollow tube, the hollow tube is in communication with the air pipe, and the hollow tube is used for accommodating the partition plate;

[0014] The partition plate is installed in the hollow tube and can play a role of partitioning the hollow tube;

[0015] A plurality of through holes are formed in the partition plate, and gas can flow through the through holes to inject gas into the annular air bag, so that the annular air bag expands, or the gas in the annular air bag is discharged through the through holes.

[0016] In one or more embodiments of the utility model, a sliding rod is slidably arranged on the partition plate, the sliding rod is respectively connected with a limiting plate and a sealing plate at two ends, the limiting plate is used for installing a spring, and when the sealing plate seals the through hole, the flow of gas can be blocked; when the sealing plate is separated from the sealing of the through hole, the gas can flow freely through the through hole.

[0017] In one or more embodiments of the utility model, the diameter of the limiting plate is less than the diameter of the air pipe, the diameter of the sealing plate is greater than the diameter of the limiting plate, and the sealing plate covers the through hole.

[0018] In one or more embodiments of the utility model, a spring is arranged outside the sliding rod, the spring is arranged between the partition plate and the limiting plate, and the spring is used for applying a force to the limiting plate, so that the limiting plate is away from the partition plate in a natural state, and at the same time, the sealing plate can cover the through hole.

[0019] In one or more embodiments of the utility model, one side of the flange is provided with a latex ball, so that the latex ball can repeatedly contract and expand to inject gas into the annular air bag;

[0020] A gas conveying pipe is connected to the latex ball, the gas conveying pipe is threadedly connected with the air pipe, and through the threaded connection, the latex ball can be separated from the flange.

[0021] In one or more embodiments of the utility model, a gas return valve is connected to the latex ball, external gas can enter the latex ball through the gas return valve, so that the latex ball can repeatedly contract and expand;

[0022] The latex ball is made of rubber material, and can be restored under the elastic effect when the latex ball is contracted.

[0023] In one or more embodiments of the utility model, the air conveying pipe is internally provided with a jacking rod, a plurality of reinforcing rods are connected between the jacking rod and the inner wall of the air conveying pipe, one end of the jacking rod is inserted into the hollow pipe, when the air conveying pipe is connected with the air pipe, the jacking rod will contact with the limiting plate and make the limiting plate move, and meanwhile the sealing plate will be separated from covering the through hole.

[0024] Compared with the prior art, the single-flange transmitter of the utility model can increase the sealing property of the single-flange transmitter through the arrangement of the corresponding mechanism, thereby the probability of leakage of the measuring medium can be reduced, and the single-flange transmitter can be safely used. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments in the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creating labor.

[0026] Figure 1 It is a perspective view of a single-flange transmitter in an embodiment of the utility model;

[0027] Figure 2 It is a partial structure section view of a single-flange transmitter in an embodiment of the utility model;

[0028] Figure 3 It is Figure 2 It is a structure schematic view of A in the utility model;

[0029] Figure 4 It is Figure 2 It is a structure schematic view of B in the utility model;

[0030] Figure 5 It is a perspective view of a latex ball in an embodiment of the utility model.

[0031] MAIN REFERENCE NUMERALS EXPLANATION:

[0032] 1-single-flange transmitter main body, 101-flange, 102-isolation diaphragm, 2-ring air bag, 201-air pipe, 202-hollow pipe, 203-separation plate, 204-through hole, 205-sliding rod, 206-limiting plate, 207-sealing plate, 208-spring, 3-latex ball, 301-air conveying pipe, 302-gas return valve, 303-jacking rod, 304-reinforcing rod. DETAILED DESCRIPTION

[0033] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0034] like Figures 1 to 5 As shown, a single-flange transmitter according to one embodiment of the present invention includes a single-flange transmitter body 1, an annular airbag 2, and a latex ball 3.

[0035] The single-flange transmitter body 1 is connected to a flange 101, and an isolation diaphragm 102 is installed on the flange 101. The isolation diaphragm 102 is electrically connected to the single-flange transmitter body 1. The flange 101 is used to install the single-flange transmitter body 1, and the isolation diaphragm 102 is used to detect the density and pressure of the measured medium and convert them into signals that are output to the single-flange transmitter body 1.

[0036] Preferably, the single-flange transmitter body 1, flange 101 and isolation diaphragm 102 used in this application are all prior art, and the connections between the various components of the single-flange transmitter body 1, flange 101 and isolation diaphragm 102 are also prior art. Therefore, their connections and working principles will not be described in detail here.

[0037] In addition, flange 101 is provided with several circumferentially evenly distributed flange holes, and the diameter of the circumference of the flange holes is larger than the diameter of the annular airbag 2. When the single flange transmitter body 1 is installed and used, the annular airbag 2 can play a sealing role, making it difficult for the measured medium to leak from the flange 101 connection.

[0038] like Figures 1 to 5 As shown, the annular airbag 2 is embedded in the flange 101, and the diameter of the annular airbag 2 is larger than the diameter of the isolation diaphragm 102. The annular airbag 2 can seal the connection of the flange 101, making it difficult for the measured medium to leak and ensuring the safe use of the single flange transmitter body 1.

[0039] The annular airbag 2 is connected to an air tube 201, through which gas can be injected into the annular airbag 2, causing the annular airbag 2 to inflate. The inflated annular airbag 2 can better seal the flange 101 connection, making it less likely for the measured medium to leak. At the same time, the gas inside the annular airbag 2 can also be discharged through the air tube 201.

[0040] like Figures 1 to 5As shown, a sealing mechanism is installed on the trachea 201, and the sealing mechanism is located inside the flange 101. The sealing mechanism is used to control the opening and closing of the trachea 201.

[0041] The sealing mechanism includes a hollow tube 202, which is connected to an air pipe 201. The hollow tube 202 is used to accommodate a partition 203. The partition 203 is installed inside the hollow tube 202, and the partition 203 can isolate the hollow tube 202.

[0042] In addition, the partition 203 is provided with several through holes 204, through which gas can flow to inject gas into the annular airbag 2, causing the annular airbag 2 to expand, or to allow the gas in the annular airbag 2 to be discharged through the through holes 204.

[0043] like Figures 1 to 5 As shown, a sliding rod 205 is slidably mounted on the partition 203, with a limiting plate 206 and a sealing plate 207 connected to its two ends respectively. The limiting plate 206 is used to install a spring 208. When the sealing plate 207 blocks the through hole 204, it can block the flow of gas. When the sealing plate 207 releases its blockage of the through hole 204, the gas can flow freely through the through hole 204.

[0044] Preferably, the diameter of the limiting plate 206 is smaller than the diameter of the air tube 201, the diameter of the sealing plate 207 is larger than the diameter of the limiting plate 206, and the sealing plate 207 covers the through hole 204.

[0045] A spring 208 is provided on the outer side of the slide bar 205, and the spring 208 is located between the partition plate 203 and the limiting plate 206. The spring 208 is used to apply force to the limiting plate 206, so that the limiting plate 206 moves away from the partition plate 203 in its natural state, while allowing the sealing plate 207 to cover the through hole 204.

[0046] like Figures 1 to 5 As shown, a latex ball 3 is provided on one side of the flange 101. By repeatedly compressing the latex ball 3, gas can be injected into the annular airbag 2, causing the annular airbag 2 to expand. The expanded annular airbag 2 can seal the connection of the flange 101, making it difficult for the measuring medium to leak.

[0047] The latex ball 3 is connected to an air supply pipe 301, which is threadedly connected to the air pipe 201. The threaded connection facilitates the separation of the latex ball 3 and the flange 101.

[0048] In addition, a return air valve 302 is connected to the latex ball 3, allowing outside air to enter the latex ball 3 through the return air valve 302, which in turn allows the latex ball 3 to repeatedly contract and expand.

[0049] Preferably, the latex ball 3 is made of rubber, and when the latex ball 3 shrinks, it can recover under the action of elasticity.

[0050] Specifically, the top rod 303 is arranged in the gas conveying pipe 301, and a plurality of reinforcing rods 304 are connected between the top rod 303 and the inner wall of the gas conveying pipe 301. One end of the top rod 303 is inserted into the hollow pipe 202. When the gas conveying pipe 301 is connected to the gas pipe 201, the top rod 303 will contact the limiting plate 206 and move the limiting plate 206, and at the same time, the sealing plate 207 will be separated from covering the through hole 204.

[0051] Specifically, the single-flange transmitter body 1 is installed by a flange connection method. The gas conveying pipe 301 is connected to the gas pipe 201, the top rod 303 extends into the hollow pipe 202 through the gas pipe 201 and contacts the limiting plate 206, and applies a force to the limiting plate 206, so that the limiting plate 206 moves towards the partition plate 203, and the spring 208 is compressed, and at the same time, the sealing plate 207 is separated from covering the through hole 204.

[0052] The latex ball 3 is held and compressed, and the gas in the latex ball 3 enters the annular air bag 2 through the gas conveying pipe 301, the gas pipe 201 and the hollow pipe 202. The latex ball 3 is made of rubber material, and under the action of the backflow valve 302, the latex ball 3 will return to its original state, so that the latex ball 3 is repeatedly compressed to inject gas into the annular air bag 2, so that the annular air bag 2 expands, and the expanded annular air bag 2 can block the connection of the flange 101, so that the measuring medium is not easy to leak, so that the single-flange transmitter body 1 can be safely used.

[0053] When the gas injection of the annular air bag 2 is completed, the latex ball 3 is removed, the limiting plate 206 is not under the action of the force, and the limiting plate 206 moves under the action of the spring 208, so that the sealing plate 207 can cover the through hole 204 again, so that the gas in the annular air bag 2 is not easy to be discharged, and the expansion effect of the annular air bag 2 is ensured.

[0054] When it is necessary to discharge the gas in the annular air bag 2, the other latex ball 3 is inserted into the hollow pipe 202 through the gas pipe 201 and moves the limiting plate 206, at this time, the sealing plate 207 is separated from covering the through hole 204, and the gas in the annular air bag 2 is discharged through the gas pipe 201 and the hollow pipe 202.

[0055] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, the scope of the present application being defined by the claims appended hereto rather than by the above description, and all the changes which fall within the meaning and the scope of the equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0056] Furthermore, it should be understood that although the present specification is described in terms of embodiments, not every embodiment according to the present specification needs to exhibit each and every characteristic specified in the present specification. The specification can also be described in terms of a single independent technical solution, but this does not mean that each embodiment only contains one independent technical solution. The specification is described in this way only for the sake of clarity, and a person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by a person skilled in the art.

Claims

1. A single flange transmitter characterized by, The utility model relates to a single flange transmitter body is connected with the flange, the flange is installed with the isolation diaphragm, the isolation diaphragm is electrically connected with single flange transmitter body, the utility model relates to a ring air bag is embedded in the flange, the ring air bag is connected with the gas pipe, the gas pipe is installed with the plugging mechanism, and the plugging mechanism is located in the flange. The flange is provided with a plurality of flange holes uniformly distributed in the circumference, and the diameter of the circumference where the plurality of flange holes is located is greater than the diameter of the ring air bag. The diameter of the ring air bag is greater than the diameter of the isolation diaphragm.

2. A single flange transmitter as claimed in claim 1, wherein, The plugging mechanism includes a hollow tube, the hollow tube is in communication with the gas pipe, a baffle is installed in the hollow tube, and a plurality of through holes are provided on the baffle.

3. A single flange transmitter as claimed in claim 2, wherein, A sliding rod is slidably provided on the baffle, and the two ends of the sliding rod are respectively connected with a limiting plate and a sealing plate.

4. A single flange transmitter as claimed in claim 1, wherein, The diameter of the limiting plate is less than the diameter of the gas pipe, the diameter of the sealing plate is greater than the diameter of the limiting plate, and the sealing plate covers the through hole.

5. A single flange transmitter as claimed in claim 4, wherein, A spring is provided outside the sliding rod, and the spring is located between the baffle and the limiting plate.

6. A single flange transmitter as claimed in claim 5, wherein, One side of the flange is provided with a latex ball, the latex ball is connected with a gas delivery pipe, and the gas delivery pipe is threadedly connected with the gas pipe.

7. A single flange transmitter as claimed in claim 6, wherein, The latex ball is connected with a gas return valve, and the latex ball is made of rubber.

8. A single flange transmitter as claimed in claim 7, wherein, A jack is provided in the gas delivery pipe, a plurality of reinforcing rods are connected between the jack and the inner wall of the gas delivery pipe, and one end of the jack is inserted into the hollow tube.

9. A single flange transmitter as claimed in claim 8, wherein, ​ 10. A single flange transmitter as claimed in claim 9, wherein, ​

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