Pressure transmitter

Abstract

The utility model relates to the technical field of pressure transmitters, in particular to a pressure transmitter. The pressure transmitter comprises a pressure transformer body, a connecting pipe is fixedly installed on the pressure transformer body, a side connecting shell arranged in an inclined mode is installed on the connecting pipe, the side connecting shell comprises an upper inclined part and a lower inclined part, an inner cavity of the upper inclined part and an inner cavity of the lower inclined part form an inclined containing cavity structure, and a cylindrical filter screen is inserted in the inclined containing cavity structure. According to the pressure transmitter provided by the utility model, the inclined cylindrical filter screen and the inclined opening are adopted, the gravity action is combined, so that impurities are easier to slide off, surface accumulation is reduced, the cleaning period of the filter screen is obviously prolonged, the guide rod, the spring and the fixing nut are matched, the filter screen can be assembled or disassembled only by screwing or loosening the nut, and the maintenance is convenient and efficient.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure transmitters, and particularly relates to a pressure transmitter. Background Art

[0002] A pressure transmitter is a sensor widely used in the field of industrial automation, mainly used for measuring the pressure of liquids or gases and converting it into a standard signal output. In fields such as petrochemical, water treatment, and energy, pressure transmitters need to operate stably for a long time and often face the problem of media containing impurities. The pressure transmitters in the prior art usually configure filters to prevent impurities from entering sensitive components, but there are still the following deficiencies:

[0003] 1. The filter is prone to clogging: Traditional filters are mostly installed horizontally or vertically, and impurities are easily accumulated on the surface of the filter, resulting in frequent cleaning or replacement and affecting the operation efficiency of the equipment;

[0004] 2. Poor stability: The filter is prone to vibration under the impact of the medium, resulting in seal failure or filter displacement;

[0005] 3. Complicated installation and maintenance: The removal of the filter requires the assistance of special tools, the operation is cumbersome, and the maintenance cost is high.

[0006] Therefore, it is necessary to provide a new pressure transmitter to solve the above technical problems. Content of the Utility Model

[0007] To solve the above technical problems, the utility model provides a pressure transmitter.

[0008] The pressure transmitter provided by the utility model includes a pressure transformer body, a connecting pipe is fixedly installed on the pressure transformer body, and an inclined side connection housing is installed on the connecting pipe;

[0009] The side connection housing includes an upward inclination part and a downward inclination part, and the inner cavities of the upward inclination part and the downward inclination part are communicated with the connecting pipe, and an opening is arranged at the end of the downward inclination part and a side connection part is fixedly installed;

[0010] The inner cavities of the upward inclination part and the downward inclination part form an inclined cavity structure, and a cylindrical filter is inserted in the inclined cavity structure. One end of the cylindrical filter is fixedly installed with a butting column, and the other end of the cylindrical filter is fixedly installed with an inserting column;

[0011] An inclined opening is arranged on the cylindrical filter.

[0012] Preferably, a sealing cover for sealing the opening is fixedly installed at the end of the inserting column, a guiding rod is fixedly installed on the sealing cover, a screw rod is fixedly welded to the rod head of the guiding rod, and a fixing nut connected by threads is sleeved on the screw rod.

[0013] Preferably, a middle coupling member is installed on the guiding rod. The middle coupling member includes a fixed disk which is fixedly sleeved on the guiding rod. A spring is fixedly installed on the fixed disk. The other end of the spring is fixedly installed with a butting ring, and both the spring and the butting ring are sleeved on the guiding rod.

[0014] Preferably, a plurality of uniformly distributed annular grooves are formed on both the butting column and the inserting column, and a rubber sealing ring is sleeved in each annular groove.

[0015] Preferably, a magnetic sleeve is fixedly fitted in the inserting hole formed on the inner wall of the upward-inclined portion, and the magnetic sleeve is coaxially arranged with the inner cavity of the upward-inclined portion.

[0016] Preferably, a magnetic column with a magnetic property opposite to that of the magnetic sleeve is fixedly installed at the end of the butting column.

[0017] Preferably, a coaxially arranged installation cavity and a through cavity are formed in the side connection portion, and the aperture of the installation cavity is larger than that of the through cavity.

[0018] Preferably, an installation flange is fixedly installed at the bottom of the connecting pipe.

[0019] Compared with the related art, the pressure transmitter provided by the present utility model has the following beneficial effects:

[0020] The present utility model adopts an inclined cylindrical filter screen and an inclined mouth, and combines with the gravity action to make impurities slide off more easily, reduce the surface accumulation, and significantly extend the cleaning cycle of the filter screen. And through the cooperation of the guiding rod, the spring and the fixing nut, the installation or disassembly of the filter screen can be completed only by tightening or loosening the nut, and the maintenance is convenient and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of a preferred embodiment of the pressure transmitter provided by the present utility model;

[0022] Figure 2 is Figure 1 the installation structural diagram of the cylindrical filter screen when the connecting pipe shown is in sectional view;

[0023] Figure 3 is Figure 2 the sectional structural diagram of the connecting pipe shown;

[0024] Figure 4 is Figure 2 the structural diagram of the cylindrical filter screen shown;

[0025] Figure 5 is Figure 4 the structural diagram of the rubber sealing ring shown.

[0026] Reference Numerals in the Figures: 1, pressure transformer body; 2, connecting pipe; 21, mounting flange; 3, side connection housing; 31, upward inclined portion; 31a, magnetic sleeve; 32, downward inclined portion; 32a, opening; 33, side connection portion; 33a, mounting cavity; 33b, through cavity; 4, cylindrical filter; 4a, inclined cut; 4b, annular groove; 41, abutting column; 411, magnetic column; 42, inserting column; 421, sealing cap; 43, guiding rod; 431, screw rod; 44, fixing nut; 45, intermediate connecting member; 451, fixing plate; 452, spring; 453, abutting ring; 5, rubber sealing ring. Detailed Implementation Manner

[0027] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0028] The following describes in detail the specific implementation of the present utility model with reference to specific embodiments.

[0029] Please refer to Figures 1 to 5 , a pressure transmitter provided by an embodiment of the present utility model, the pressure transmitter includes a pressure transformer body 1, a connecting pipe 2, a side connection housing 3 and a cylindrical filter 4.

[0030] In an embodiment of the present utility model, please refer to Figures 1 to 5 , a connecting pipe 2 is fixedly installed on the pressure transformer body 1, and a mounting flange 21 is fixedly installed at the bottom of the connecting pipe 2. After the pressure transformer body 1 is fixed to the pipeline by using the mounting flange 21, the liquid is detected by using the pressure transformer body 1.

[0031] In an embodiment of the present utility model, please refer to Figures 1 to 5 , an inclined side connection housing 3 is installed on the connecting pipe 2. The side connection housing 3 includes an upward inclined portion 31 and a downward inclined portion 32, and the inner cavities of the upward inclined portion 31 and the downward inclined portion 32 are in communication with the connecting pipe 2. An opening 32a is provided at the end of the downward inclined portion 32, and a side connection portion 33 is fixedly installed. An axially arranged mounting cavity 33a and a through cavity 33b are formed in the side connection portion 33, and the aperture of the mounting cavity 33a is larger than that of the through cavity 33b;

[0032] The inner cavities of the upward-inclined part 31 and the downward-inclined part 32 form an inclined cavity structure, and a cylindrical filter screen 4 is inserted in the inclined cavity structure. A butting column 41 is fixedly installed at one end of the cylindrical filter screen 4, and an inserting column 42 is fixedly installed at the other end of the cylindrical filter screen 4. An inclined opening 4a is formed on the cylindrical filter screen 4. A cover 421 for sealing the opening 32a is fixedly installed at the end of the inserting column 42, and a guiding rod 43 is fixedly installed on the cover 421. A screw rod 431 is fixedly welded to the rod head of the guiding rod 43, and a fixed nut 44 connected by threads is sleeved on the screw rod 431.

[0033] It should be noted that when installing the cylindrical filter screen 4, insert the end of the cylindrical filter screen 4 with the butting column 41 from the opening 32a until the screw rod 431 at the tail of the guiding rod 43 passes through the through cavity 33b, then sleeve the fixed nut 44 onto the screw rod 431 and tighten it to complete the installation of the cylindrical filter screen 4. The operation is simple and convenient. At this time, the liquid enters the cylindrical filter screen 4 through the inclined opening 4a of the cylindrical filter screen 4 for filtration, and the filter residue can adhere to the cylindrical filter screen 4. And the cylindrical filter screen 4 passes through the lumen of the connecting pipe 2 in an inclined manner, and the designed inclination angle makes the intercepted particles or impurities more likely to slide down under the action of gravity to reduce surface accumulation, thereby delaying blockage and reducing the cleaning or replacement frequency. And part of the filter residue can fall into the cylindrical filter screen 4 at the inclined part below the inclined opening 4a for storage, so as to remove the filter residue subsequently.

[0034] In this embodiment: Due to the limitation of the insertion of the butting column 41 in the side connection part 33 for the installation of the cylindrical filter screen 4, the inclined opening 4a opened on the cylindrical filter screen 4 faces downward of the connecting pipe 2 after the installation of the cylindrical filter screen 4.

[0035] Furthermore, a plurality of uniformly distributed annular grooves 4b are formed on both the butting column 41 and the inserting column 42, and a rubber sealing ring 5 is sleeved in each annular groove 4b, which not only improves the sealing effect between the butting column 41 and the upward-inclined part 31 and between the inserting column 42 and the downward-inclined part 32, reducing the hidden danger of liquid leakage, but also because the rubber sealing ring 5 is an elastic structure, the amplitude of the cylindrical filter screen 4 caused by liquid impact can be reduced.

[0036] Furthermore, a magnetic sleeve 31a is fixedly embedded in the insertion hole formed on the inner wall of the upward-inclined part 31, and the magnetic sleeve 31a is coaxially arranged with the inner cavity of the upward-inclined part 31. A magnetic column 411 with a magnetic property opposite to that of the magnetic sleeve 31a is fixedly installed at the end of the butting column 41, further improving the installation stability of the cylindrical filter screen 4.

[0037] In the embodiment of the present utility model, please refer to Figures 1 to 5, a middle joint 45 is installed on the guide rod 43. The middle joint 45 includes a fixed disk 451 which is fixedly sleeved on the guide rod 43. A spring 452 is fixedly installed on the fixed disk 451. The other end of the spring 452 is fixedly installed with an abutting ring 453, and both the spring 452 and the abutting ring 453 are sleeved on the guide rod 43.

[0038] It should be noted that: after the guide rod 43 is inserted into the installation cavity 33a, the abutting ring 453 abuts against the bottom wall of the installation cavity 33a. After the fixing nut 44 on the screw rod 431 is tightened and fixed, at this time the spring 452 is compressed. When the cylindrical filter screen 4 needs to be cleaned, after the fixing nut 44 is unscrewed, under the elastic force of the spring 452, the guide rod 43 is driven to slide out of the installation cavity 33a, so as to drive the cylindrical filter screen 4 to slide out of a part of the downward inclined part 32, which is convenient for the staff to quickly take out the cylindrical filter screen 4.

[0039] In this embodiment: when cleaning the cylindrical filter screen 4, it can be simply and conveniently backflushed with a water gun.

[0040] The above are only embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A pressure transmitter, characterized in that, It includes a pressure transformer body (1), a connecting pipe (2) is fixedly installed on the pressure transformer body (1), and an inclined side connection housing (3) is installed on the connecting pipe (2); The side connection housing (3) includes an upward inclined portion (31) and a downward inclined portion (32), and the inner cavities of the upward inclined portion (31) and the downward inclined portion (32) are in communication with the connecting pipe (2). An opening (32a) is provided at the end of the downward inclined portion (32), and a side connection portion (33) is fixedly installed; The inner cavities of the upward inclined portion (31) and the downward inclined portion (32) form an inclined cavity structure, and a cylindrical filter screen (4) is inserted in the inclined cavity structure. One end of the cylindrical filter screen (4) is fixedly installed with a butting column (41), and the other end of the cylindrical filter screen (4) is fixedly installed with an inserting column (42); An inclined opening (4a) is provided on the cylindrical filter screen (4).

2. The pressure transmitter according to claim 1, wherein, A cover (421) for sealing the opening (32a) is fixedly installed at the end of the inserting column (42), and a guide rod (43) is fixedly installed on the cover (421). A screw rod (431) is fixedly welded to the rod head of the guide rod (43), and a fixed nut (44) with threaded connection is sleeved on the screw rod (431).

3. The pressure transmitter according to claim 2, wherein An intermediate connecting member (45) is installed on the guide rod (43). The intermediate connecting member (45) includes a fixed disk (451). The fixed disk (451) is fixedly sleeved on the guide rod (43), and a spring (452) is fixedly installed on the fixed disk (451). The other end of the spring (452) is fixedly installed with a butting ring (453), and both the spring (452) and the butting ring (453) are sleeved on the guide rod (43).

4. The pressure transmitter according to claim 1, wherein A plurality of uniformly distributed annular grooves (4b) are provided on both the butting column (41) and the inserting column (42), and a rubber sealing ring (5) is sleeved in each annular groove (4b).

5. The pressure transmitter according to claim 1, characterized in that, A magnetic sleeve (31a) is fixedly fitted in the insertion hole provided on the inner wall of the upward inclined portion (31), and the magnetic sleeve (31a) is coaxially arranged with the inner cavity of the upward inclined portion (31).

6. The pressure transmitter according to claim 5, characterized in that, A magnetic column (411) with a magnetic property opposite to that of the magnetic sleeve (31a) is fixedly installed at the end of the butting column (41).

7. The pressure transmitter according to claim 1, characterized in that, An installation flange (21) is fixedly installed at the bottom of the connecting pipe (2).

8. The pressure transmitter according to claim 2, wherein An installation cavity (33a) and a through cavity (33b) with coaxial arrangement are provided in the side connection portion (33), and the aperture of the installation cavity (33a) is larger than that of the through cavity (33b).

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