CN209802568U - wireless electronic differential pressure transmitter - Google Patents

Abstract

The utility model relates to a differential pressure transmitter technical field especially relates to a wireless electron differential pressure transmitter, which comprises a housin, the inside of casing is provided with the battery, battery electric connection has differential pressure measurement module, AD conversion module and wireless communication module, differential pressure measurement module comprises two pressure measurement probes and a differential pressure comparison module, wireless communication module comprises HART module circuit and antenna, and AD conversion module connects at the interior bottom wall of casing, rotates set screw and drives the location flange and be close to the location ring, and the location flange is hugged closely with the location ring through the rubber strip, and the setting of rubber strip makes the connection between upper casing and the lower casing tighter, and is easier when internal parts are overhauld; the setting of round platform is fixed irregular sleeve position, and is better to the fixed effect of casing, prevents to remove, will have the external screw thread siphunculus of the cover body and install muffjoint, and threaded connected mode is dismantled simply, conveniently, is difficult for causing the damage.

Description

wireless electronic differential pressure transmitter

Technical Field

the utility model relates to a differential pressure transmitter technical field especially relates to a wireless electron differential pressure transmitter.

background

the differential pressure transmitter is a typical self-balancing detecting instrument, and overcomes the influence of adverse factors such as element materials, processing technology and the like by using the working principle of negative feedback, and is used for preventing a medium in a pipeline from directly entering the transmitter and measuring the liquid level, the flow and the pressure of liquid, gas or steam.

The technical scheme of the wireless electronic differential pressure transmitter under the patent number 201821169403.9 can be applied to any scene provided with wireless signal receiving equipment, eliminates the limitation of line laying, simultaneously receives data by one equipment, and has more applicability to data monitoring. But be connected through glue between the mounting surface among this technical scheme and the cover body, when the inside device of changer needs to be overhauld, inconvenient dismantlement to it causes the device to damage easily.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wireless electron differential pressure transmitter to solve above-mentioned technical problem.

The utility model discloses a solve above-mentioned technical problem, adopt following technical scheme to realize:

a wireless electronic differential pressure transmitter comprises a shell, wherein a battery is arranged in the shell, the battery is electrically connected with a differential pressure measuring module, an A/D conversion module and a wireless communication module, the differential pressure measuring module consists of two pressure measuring probes and a differential pressure comparison module, the wireless communication module consists of an HART module circuit and an antenna, the A/D conversion module is connected to the inner bottom wall of the shell, the pressure measuring probes are connected to the inner bottom wall of the shell and extend to the outside of the shell, the differential pressure comparison module and the HART module circuit are connected to the inner side wall of the shell, and the antenna is connected to the upper end face of the shell;

The lower extreme activity of casing is pegged graft in the horizontal section of installation sleeve, the screw thread section threaded connection who sets up on the vertical section inner wall of installation sleeve has the external screw thread siphunculus, the upper end through connection of external screw thread siphunculus has the cover body, and the casing is located the inside of the cover body.

Preferably, the casing includes casing down, the lower extreme through connection of casing has two irregular sleeves down, and irregular telescopic upper end diameter is less than the lower extreme diameter, and two pressure measurement probe's lower extreme extends to two irregular telescopic insides respectively, the inner wall connection of casing has the location ring down, the lower extreme of location ring is connected with the rubber strip, the top of casing is provided with the casing down, threaded connection has set screw in the lateral wall of last casing, set screw's lower extreme is connected with the location flange.

Preferably, the number of the positioning screws is four, and the four positioning screws are distributed in a matrix.

Preferably, the lower extreme center department through connection of installation sleeve has the internal thread siphunculus, internal thread siphunculus female connection has the screw rod, the upper end that the screw rod is located installation sleeve inside is connected with the round platform, the lower extreme that the screw rod is located installation sleeve outside is connected with the twisting disk.

Preferably, the inner bottom wall of the installation sleeve is connected with a supporting block, and the supporting block is arranged to avoid direct contact between the shell and the installation sleeve, so that heat dissipation of all parts is facilitated.

Preferably, the number of the support blocks is four, the four support blocks are distributed in a matrix, and the four support blocks are all located below the shell.

The utility model has the advantages that:

The upper shell is placed on the lower shell, the positioning screw is rotated to drive the positioning convex plate to be close to the positioning circular ring, the positioning convex plate is tightly attached to the positioning circular ring through the rubber strip, and the rubber strip is arranged, so that the upper shell and the lower shell are connected more tightly, and internal parts are easier to overhaul;

the setting of round platform is fixed irregular sleeve position, and is better to the fixed effect of casing, prevents to remove, will have the external screw thread siphunculus of the cover body and install muffjoint, and threaded connected mode is dismantled simply, conveniently, is difficult for causing the damage.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a partial structure of the present invention;

fig. 3 is an electrical schematic diagram of the present invention;

Reference numerals: 1-a shell; 101-a lower housing; 102-an irregular sleeve; 103-an upper shell; 104-positioning the circular ring; 105-a rubber strip; 106-set screws; 107-positioning convex plate; 2-a battery; 3-differential pressure measuring module; 301-pressure measuring probe; 302-differential pressure comparison module; 4-A/D conversion module; 5-a wireless communication module; 501-HART module circuit; 502-an antenna; 6-installing a sleeve; 7-external thread through pipe; 8-cover body; 9-internal thread through pipe; 10-a screw; 11-a circular truncated cone; 12-a twist disk; 13-support block.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only the preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.

specific embodiments of the present invention will be described below with reference to the accompanying drawings.

Example 1

As shown in fig. 1-3, a wireless electronic differential pressure transmitter includes a housing 1, a battery 2 is disposed inside the housing 1, the battery 2 is electrically connected to a differential pressure measurement module 3, an a/D conversion module 4 and a wireless communication module 5, the differential pressure measurement module 3 is used for testing analog signal data of differential pressure, the a/D conversion module 4 converts the analog signal data into digital signal data and outputs the digital signal data, the digital signal data is transmitted to an external receiving device through an antenna 502 in the wireless communication module 5, the differential pressure measurement module 3 is composed of two pressure measurement probes 301 and a differential pressure comparison module 302, the wireless communication module 5 is composed of a HART module circuit 501 and an antenna 502, the a/D conversion module 4 is connected to an inner bottom wall of the housing 1, the pressure measurement probes 301 are connected to the inner bottom wall of the housing 1 and extend to the outside of the housing 1, the differential pressure comparison module 302 and the HART module circuit 501 are connected to an inner, the antenna 502 is connected to the upper end face of the housing 1;

the lower end of the shell 1 is movably inserted in the transverse section of the mounting sleeve 6, a threaded section formed on the inner wall of the vertical section of the mounting sleeve 6 is in threaded connection with an external thread through pipe 7, the upper end of the external thread through pipe 7 is in through connection with a cover body 8, and the shell 1 is positioned inside the cover body 8;

The shell 1 comprises a lower shell 101, the lower end of the lower shell 101 is connected with two irregular sleeves 102 in a penetrating manner, the diameters of the upper ends of the irregular sleeves 102 are smaller than the diameters of the lower ends, the lower ends of two pressure measuring probes 301 extend into the two irregular sleeves 102 respectively, the inner wall of the lower shell 101 is connected with a positioning ring 104, the lower end of the positioning ring 104 is connected with a rubber strip 105, an upper shell 103 is arranged above the lower shell 101, the side wall of the upper shell 103 is in threaded connection with four positioning screws 106 distributed in a matrix manner, and the lower ends of the positioning screws 106 are connected with a positioning convex plate 107;

An internal thread through pipe 9 is connected at the center of the lower end of the mounting sleeve 6 in a penetrating manner, a screw rod 10 is connected with the internal thread of the internal thread through pipe 9, a circular truncated cone 11 is connected at the upper end of the screw rod 10 positioned in the mounting sleeve 6, and a twisting disc 12 is connected at the lower end of the screw rod 10 positioned outside the mounting sleeve 6;

The inner bottom wall of the mounting sleeve 6 is connected with four supporting blocks 13, the number of the supporting blocks 13 is four, the four supporting blocks 13 are distributed in a matrix, and the four supporting blocks 13 are all located below the shell 1.

in the scheme, 2 pressure measuring probes 301 respectively extend into different environments to be detected to obtain 2 pressure signals, the pressure difference comparison module 302 compares the pressure signals to obtain the pressure difference of the 2 pressure signals, and the pressure difference is converted by the A/D conversion module 4 and is sent out by the wireless communication module 5;

the upper shell 103 is placed on the lower shell 101, the positioning screw 106 is rotated to drive the positioning convex plate 107 to be close to the positioning circular ring 104, the positioning convex plate 107 is tightly attached to the positioning circular ring 104 through the rubber strip 105, the rubber strip 105 is arranged, so that the upper shell 103 and the lower shell 101 are connected more tightly, and internal parts are easier to overhaul;

Rotate screw rod 10 through turning round disk 12, screw rod 10 drives round platform 11 and reciprocates, when round platform 11 moves down, be close to gradually until hugging closely with the great radius department of irregular sleeve 102, fix irregular sleeve 102 position, fixed effect to casing 1 is better, prevents to remove, will have the external screw thread siphunculus 7 of the cover body 8 to be connected with installation sleeve 6, threaded connected mode, it is simple, convenient to dismantle, difficult damage that causes.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. A wireless electronic differential pressure transmitter, comprising a housing (1), characterized in that: the wireless communication module comprises a shell (1), a battery (2) and a wireless communication module (5), wherein the battery (2) is arranged in the shell (1), the battery (2) is electrically connected with a differential pressure measurement module (3), an A/D conversion module (4) and the wireless communication module (5), the differential pressure measurement module (3) consists of two pressure measuring probes (301) and a differential pressure comparison module (302), the wireless communication module (5) consists of a HART module circuit (501) and an antenna (502), the A/D conversion module (4) is connected to the inner bottom wall of the shell (1), the pressure measuring probes (301) are connected to the inner bottom wall of the shell (1) and extend to the outside of the shell (1), the differential pressure comparison module (302) and the HART module circuit (501) are connected to the inner side wall of the shell (1), and the antenna (502) is connected to the;

The lower extreme activity of casing (1) is pegged graft in the horizontal section of installation sleeve (6), the screw thread section threaded connection who sets up on the vertical section inner wall of installation sleeve (6) has external screw thread siphunculus (7), the upper end through connection of external screw thread siphunculus (7) has the cover body (8), and casing (1) is located the inside of the cover body (8).

2. The wireless electronic differential pressure transmitter of claim 1, wherein: casing (1) is including lower casing (101), the lower extreme through connection of lower casing (101) has two irregular sleeves (102), and the upper end diameter of irregular sleeve (102) is less than the lower extreme diameter, and the lower extreme of two pressure probes (301) extends to the inside of two irregular sleeves (102) respectively, the inner wall connection of casing (101) has location ring (104) down, the lower extreme of location ring (104) is connected with rubber strip (105), the top of casing (101) is provided with casing (103) down, threaded connection has set screw (106) in the lateral wall of last casing (103), the lower extreme of set screw (106) is connected with location flange (107).

3. The wireless electronic differential pressure transmitter of claim 2, wherein: the number of the positioning screws (106) is four, and the four positioning screws (106) are distributed in a matrix.

4. the wireless electronic differential pressure transmitter of claim 1, wherein: the lower extreme center department of installation sleeve (6) link up and is connected with internal thread siphunculus (9), internal thread siphunculus (9) female connection has screw rod (10), the upper end that screw rod (10) are located installation sleeve (6) inside is connected with round platform (11), the lower extreme that screw rod (10) are located installation sleeve (6) outside is connected with and twists reverse driving disk (12).

5. The wireless electronic differential pressure transmitter of claim 1, wherein: the inner bottom wall of the mounting sleeve (6) is connected with a supporting block (13).

6. The wireless electronic differential pressure transmitter of claim 5, wherein: the number of the supporting blocks (13) is four, the four supporting blocks (13) are distributed in a matrix mode, and the four supporting blocks (13) are located below the shell (1).