CN218411540U - Pressure transmitter's calibration equipment - Google Patents

Abstract

The utility model relates to the field of pressure transmitters, in particular to a calibration device of a pressure transmitter; the transducer comprises a gas storage pipeline, a converter, a connecting piece and a vent pipe, wherein a transducer body is communicated with the gas storage pipeline through the converter, the converter comprises a first joint and a second joint, and the first joint and the second joint are connected in a quick-release manner through the connecting piece; the gas storage pipeline is positioned at one side of the pressure calibrator and is communicated with a gas pipe connector of the pressure calibrator through a vent pipe; the transmitter body is arranged at the upper end of the second connector; this application passes through the converter can be convenient for dismantle fast and install the changer body, is convenient for improve the efficiency of check-up.

Description

Pressure transmitter's calibration equipment

Technical Field

The utility model relates to a pressure transmitter field specifically is a calibration equipment who relates to a pressure transmitter.

Background

The pressure transmitter is the most common sensor in industrial practice, is widely applied to various industrial automatic control environments, and relates to various industries such as water conservancy and hydropower, railway traffic, intelligent buildings, production automatic control, aerospace, military industry, petrochemical industry, oil wells, electric power, ships, machine tools, pipelines and the like.

The pressure transmitter is checked in the production process or the use process of the pressure transducer so as to ensure the normal use of the pressure transmitter, a pressure checker (for example, a full-automatic pressure checker with the model of ConST 811) is usually adopted to check the pressure transmitter, when checking, firstly, a rear cover of the pressure transmitter is opened, the pressure transmitter is in signal connection with the pressure checker through a signal line, different air pressures are output to the pressure transmitter through the pressure checker, so that a plurality of groups of current or voltage data are obtained, and the obtained experimental data are compared with standard values; at present, when the check-up, pressure transmitter's gas input end need pass through spanner fixed mounting at the air supply output of pressure check gauge, when having a plurality of pressure transmitter that wait to detect, need frequent dismantlement and installation pressure transmitter, the efficiency of the improvement work of being not convenient for.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a calibration device for a pressure transmitter.

For solving the prior art problem, the utility model discloses a technical scheme be:

a pressure transmitter calibration device comprises a transmitter body and a pressure calibrator, wherein the pressure calibrator comprises a pressure pump and a plurality of air pipe connectors, and the transmitter body is electrically connected with the pressure calibrator through a cable; the transmitter body is communicated with the gas storage pipeline through the converter, the converter comprises a first connector and a second connector, and the first connector and the second connector are connected in a quick-release manner through the connecting piece; the gas storage pipeline is positioned at one side of the pressure calibrator and is communicated with a gas pipe connector of the pressure calibrator through a vent pipe; the gas storage pipeline is provided with a threaded hole communicated with the inner cavity of the gas storage pipeline, the first connector is in threaded connection with the threaded hole of the gas storage pipeline, the second connector is connected with the upper end of the first connector, and the transmitter body is installed at the upper end of the second connector.

Preferably, the connecting piece comprises a clamping block; the first joint and the second joint are of a pipeline type structure, the upper end of the first joint is provided with a first annular groove, the lower end of the second joint is provided with an annular lug which is inserted into the first annular groove, the bottom end of the first annular groove is provided with two symmetrically distributed columnar lugs, and the annular lug is provided with two limiting grooves which are matched with the columnar lugs; the inner cavity of the second joint is provided with threads, and the transmitter body is in threaded connection with the inner cavity of the second joint; the outer wall of the first joint is provided with two first mounting grooves extending along the radial direction of the first joint, and the two first mounting grooves are symmetrically distributed on the first joint; the annular convex block is provided with a second mounting groove corresponding to the first mounting groove and in a shape suitable for the first mounting groove, and the first mounting groove is communicated with the second mounting groove; a clamping block which is matched with the first mounting groove in shape is inserted into each first mounting groove.

Preferably, the connecting piece also comprises two push rods, and each push rod is sleeved with a spring; the upper end of the first joint is provided with a first circular groove communicated to the inner cavity of the first joint, the upper end part of the first circular groove is formed with threads, the first circular groove is in threaded connection with a tubular part, and the outer wall of the lower end part of the tubular part is provided with a second annular groove; a third mounting groove which corresponds to the second mounting groove and is adaptive to the shape of the second mounting groove is formed in the first circular groove, and the second mounting groove is communicated with the second annular groove through the third mounting groove; each clamping block is provided with a slotted hole for mounting a push rod, the push rod penetrates through the slotted hole to the second annular groove, a first strip-shaped baffle is formed at one end of the push rod, which is positioned in the second annular groove, and a second strip-shaped baffle is formed at the other end of the push rod; one end of the clamping block, which is close to the second strip-shaped baffle, is provided with a second circular groove which is coaxial with the groove hole, and two ends of the spring are respectively abutted against the bottom of the second circular groove and the bottom of the second strip-shaped baffle.

Preferably, the upper end of the first joint is provided with a third annular groove, and the lower end of the second joint is provided with a fourth annular groove matched with the third annular groove; and a sealing ring is fixedly arranged in the third annular groove.

Preferably, the gas storage pipeline is fixedly connected with a pressure relief valve communicated to the inner cavity of the gas storage pipeline.

Preferably, the pressure calibrator is provided with a lifting belt.

Preferably, one end of the gas storage pipeline is provided with a gas pipe connector, and the vent pipe is communicated with the gas storage pipeline through the gas pipe connector.

This application compares in prior art's beneficial effect and is:

1. the pressure calibrator comprises a transmitter body, a pressure calibrator, a gas storage pipeline, a converter and a connecting piece, wherein the pressure calibrator comprises a pressure pump and a plurality of gas pipe connectors; the transmitter body is electrically connected with the pressure calibrator through a cable, the transmitter body is communicated with the gas storage pipeline through a converter, the converter comprises a first connector and a second connector, and the first connector and the second connector are connected in a quick-release manner through a connecting piece; the gas storage pipeline is positioned at one side of the pressure calibrator and is communicated with a gas pipe connector of the pressure calibrator through a vent pipe; the check tool comprises a gas storage pipeline, a first connector, a second connector, a pressure calibrator and a pressure calibrator, wherein a threaded hole communicated with an inner cavity of the gas storage pipeline is formed in the gas storage pipeline, the first connector is in threaded connection with the threaded hole of the gas storage pipeline, the second connector is connected to the upper end of the first connector, the transmitter body is installed at the upper end of the second connector, when a plurality of transmitter bodies are checked, the checker needs to prepare a plurality of second connectors, after the transmitter bodies are communicated with the gas storage pipeline through a converter, the pressure calibrator is operated, so that a pressure pump can ventilate the gas storage pipeline through a gas pipe, different gas pressures in the gas storage pipeline are controlled through the pressure calibrator, the transmitter bodies transmit electric signals output by different gas pressures to the pressure calibrator through cables, a detection value is compared with a standard value of the transmitter bodies, the quality of the transmitter bodies is judged, when the check tool checks one of the transmitter bodies, redundant second connectors can be installed on the transmitter bodies to be measured in advance through the pressure calibrator by an operator, when the check tool finishes checking of one transmitter body, the checking of the transmitter bodies, the check tool can directly connect the second connectors on the transmitter bodies on the transmitter, and the transmitter, the check tool can avoid the checking tool from frequently disassembling the transmitter body, and the checking tool can be used for checking tool for checking the checking of the transmitter, and the checking tool for checking of the transmitter body, and the checking tool.

2. The connecting piece comprises a clamping block, a first joint and a second joint are both arranged to be of a pipeline type structure, the upper end of the first joint is provided with a first annular groove, the lower end of the second joint is formed with an annular lug which is inserted into the first annular groove, the bottom end of the first annular groove is formed with two symmetrically distributed columnar lugs, and the annular lug is provided with two limiting grooves which are matched with the columnar lugs; the inner cavity of the second joint is provided with threads, and the transmitter body is in threaded connection with the inner cavity of the second joint; the outer wall of the first joint is provided with two first mounting grooves extending along the radial direction of the first joint, and the two first mounting grooves are symmetrically distributed on the first joint; the annular convex block is provided with a second mounting groove corresponding to the first mounting groove and in a shape suitable for the first mounting groove, and the first mounting groove is communicated with the second mounting groove; a clamping block which is matched with the first mounting groove in shape is inserted into each first mounting groove; when connecting the installation to first joint and second, insert the first ring channel to first joint through the annular lug that connects the second, column lug slides along the spacing groove on the annular lug at this in-process, can guarantee that first joint and second joint can not take place relative rotation, the up end that first joint this moment and second connect is laminated mutually, slide to the second mounting groove in inserting the fixture block in first mounting groove, at this moment, first joint and second connect and accomplish promptly, when connecting the dismantlement to first joint and second, can connect the second to directly extract through taking out the fixture block.

3. According to the application, each push rod is sleeved with a spring; the upper end of the first joint is provided with a first circular groove communicated to the inner cavity of the first joint, the upper end part of the first circular groove is formed with threads, the first circular groove is in threaded connection with a tubular part, and the outer wall of the lower end part of the tubular part is provided with a second annular groove; a third mounting groove which corresponds to the second mounting groove and is adaptive to the shape of the second mounting groove is formed in the first circular groove, and the second mounting groove is communicated with the second annular groove through the third mounting groove; each clamping block is provided with a slotted hole for mounting a push rod, the push rod penetrates through the slotted hole to the second annular groove, a first strip-shaped baffle is formed at one end of the push rod, which is positioned in the second annular groove, and a second strip-shaped baffle is formed at the other end of the push rod; the fixture block is close to the one end of second bar baffle and has seted up the second circular slot coaxial with the slotted hole, the both ends of spring butt respectively in the bottom of second circular slot and the bottom of second bar baffle, when the fixture block inserts in the first mounting groove, first bar baffle is to the second ring channel in, it makes the certain angle of first bar baffle slope to rotate second bar baffle this moment, loosen the rotation that the hand stopped the second bar baffle this moment, the spring extends to drive the push rod and slides to the outside and connect to the inner wall of first circular slot until first bar baffle, can prevent that the fixture block from sliding in first mounting groove and leading to droing, when dismantling, it is when parallel state to rotate second bar baffle to first bar baffle and first mounting groove, spur second bar baffle and can drive the first mounting groove of roll-off fixture block.

Drawings

FIG. 1 is a perspective view of the present application;

FIG. 2 is a perspective view of the transducer and connector of the present application;

FIG. 3 isbase:Sub>A cross-sectional view taken along section A-A of FIG. 2 of the present application;

FIG. 4 is a cross-sectional view taken along section B-B of FIG. 2 of the present application;

FIG. 5 is a perspective view of the gas storage pipeline, pressure relief valve and gas line connector of the present application;

FIG. 6 is a perspective view of a latch of the present application;

FIG. 7 is an exploded perspective view of the transducer and connector of the present application;

FIG. 8 is a perspective view of a first joint of the present application;

the reference numbers in the figures are:

1-a transmitter body;

2-a pressure calibrator; 2 a-a lifting belt;

3-gas storage pipeline; 3 a-a threaded hole;

4-a converter; 4 a-a first linker; 4a 1-a first annular groove; 4a1 a-stud bumps; 4a 2-a first mounting groove; 4a 3-first circular groove; 4a 4-a third mounting groove; 4a 5-a third annular groove; 4a 6-sealing ring; 4 b-a second linker; 4b 1-annular bumps; 4b1 a-a limiting groove; 4b 2-a second mounting groove; 4b 3-fourth annular groove; 4 c-a tubular member; 4c 1-a second annular groove;

5-a connecting piece; 5 a-a fixture block; 5a 1-slot; 5a 2-second circular groove; 5 b-a push rod; 5b 1-a first bar baffle; 5b 2-a second strip-shaped baffle; 5 c-a spring;

6-a breather pipe;

7-a pressure relief valve;

8-air pipe joint.

Detailed Description

For further understanding of the features and technical means of the present invention, as well as the specific objects and functions attained by the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.

As shown in fig. 1-8, the present application provides:

a pressure transmitter calibration device comprises a transmitter body 1 and a pressure calibrator 2, wherein the pressure calibrator 2 comprises a pressure pump and a plurality of air pipe connectors, and the transmitter body 1 is electrically connected with the pressure calibrator 2 through a cable; the transmitter comprises a transmitter body 1, a converter 4, a connecting piece 5 and a vent pipe 6, wherein the transmitter body 3 is communicated with the gas storage pipeline 3 through the converter 4, the converter 4 comprises a first connector 4a and a second connector 4b, and the first connector 4a and the second connector 4b are connected in a quick-release manner through the connecting piece 5; the gas storage pipeline 3 is positioned at one side of the pressure calibrator 2, and the gas storage pipeline 3 is communicated with a gas pipe connecting port of the pressure calibrator 2 through a gas pipe 6; the gas storage pipeline 3 is provided with a threaded hole 3a communicated with the inner cavity of the gas storage pipeline, the first connector 4a is in threaded connection with the threaded hole 3a of the gas storage pipeline 3, the second connector 4b is connected with the upper end of the first connector 4a, and the transmitter body 1 is arranged at the upper end of the second connector 4 b.

Based on the above embodiments, the technical problem to be solved by the present application is how to quickly verify a plurality of transmitter bodies 1. Therefore, the pressure tester is provided with a transmitter body 1, a pressure tester 2, a gas storage pipeline 3, a converter 4 and a connecting piece 5, wherein the pressure tester 2 comprises a pressure pump and a plurality of gas pipe connectors (the pressure tester 2 is the prior art, and the principle structure of the pressure tester is not shown in the figure); the transmitter body 1 is electrically connected with the pressure calibrator 2 through a cable, the transmitter body 1 is communicated with the gas storage pipeline 3 through a converter 4, the converter 4 comprises a first joint 4a and a second joint 4b, and the first joint 4a and the second joint 4b are connected in a quick-release manner through a connecting piece 5; the gas storage pipeline 3 is positioned at one side of the pressure calibrator 2, and the gas storage pipeline 3 is communicated with a gas pipe connecting port of the pressure calibrator 2 through a gas pipe 6; the gas storage pipeline 3 is provided with a threaded hole 3a communicated with the inner cavity of the gas storage pipeline, a first joint 4a is in threaded connection with the threaded hole 3a of the gas storage pipeline 3, a second joint 4b is connected with the upper end of the first joint 4a, the transmitter body 1 is arranged at the upper end of the second joint 4b, when a plurality of transmitter bodies 1 are checked, a plurality of second joints 4b are prepared by a checker, after the transmitter bodies 1 are communicated with the gas storage pipeline 3 through a converter 4, the pressure checker 2 is operated, so that the booster pump ventilates the gas storage pipeline 3 through a gas pipe, different gas pressures in the gas storage pipeline 3 are controlled through the pressure checker 2, the transmitter bodies 1 transmit electric signals output by the different gas pressures to the pressure checker 2 through cables, and the detected values are compared with the standard values of the transmitter bodies 1, thereby judge the quality of changer body 1, when the check-up personnel detected one of them changer body 1, can be installed unnecessary second by operating personnel on the measuring changer body 1 in advance, when the check-up personnel accomplished a changer body 1, only need to separate second joint 4b and first joint 4a, can directly be connected second joint 4b on the changer body 1 that does not check-up directly with first joint 4a on the gas storage pipeline 3, can carry out the check-up, second joint 4b on the changer body 1 after the detection was accomplished is dismantled by operating personnel, avoided the testing personnel need frequent dismantlement of changer body 1 through the spanner just can carry out the check-up to next changer body 1, the efficiency of the check-up of improvement by a wide margin.

Further, as shown in fig. 3, 4, 7, and 8:

the connecting piece 5 comprises a clamping block 5a; the first joint 4a and the second joint 4b are both of a pipeline type structure, the upper end of the first joint 4a is provided with a first annular groove 4a1, the lower end of the second joint 4b is formed with an annular convex block 4b1 inserted into the first annular groove 4a1, the bottom end of the first annular groove 4a1 is formed with two columnar convex blocks 4a1a which are symmetrically distributed, and the annular convex block 4b1 is provided with two limiting grooves 4b1a which are matched with the columnar convex blocks 4a 1a; the inner cavity of the second joint 4b is provided with threads, and the transmitter body 1 is in threaded connection with the inner cavity of the second joint 4 b; the outer wall of the first joint 4a is provided with first mounting grooves 4a2 extending along the radial direction of the first joint 4a, and the first mounting grooves 4a2 are two and symmetrically distributed on the first joint 4 a; the annular convex block 4b1 is provided with a second mounting groove 4b2 corresponding to the first mounting groove 4a2 and having a shape matched with the first mounting groove 4a2, and the first mounting groove 4a2 is communicated with the second mounting groove 4b 2; a clamping block 5a which is matched with the first installation groove 4a2 in shape is inserted in each first installation groove 4a2.

Based on the above embodiments, the technical problem to be solved by the present application is how to quickly and easily connect the first joint 4a with the second joint 4b via the connecting member 5. Therefore, the connecting piece 5 comprises a clamping block 5a, the first joint 4a and the second joint 4b are both arranged to be of a pipeline type structure, the upper end of the first joint 4a is provided with a first annular groove 4a1, the lower end of the second joint 4b is provided with an annular convex block 4b1 inserted into the first annular groove 4a1, the bottom end of the first annular groove 4a1 is provided with two symmetrically distributed columnar convex blocks 4a1a, and the annular convex block 4b1 is provided with two limiting grooves 4b1a matched with the columnar convex blocks 4a 1a; the inner cavity of the second joint 4b is provided with threads, and the transmitter body 1 is in threaded connection with the inner cavity of the second joint 4 b; the outer wall of the first joint 4a is provided with first mounting grooves 4a2 extending along the radial direction of the first joint 4a, and the first mounting grooves 4a2 are provided with two and symmetrically distributed on the first joint 4 a; the annular convex block 4b1 is provided with a second mounting groove 4b2 corresponding to the first mounting groove 4a2 and having a shape matched with the first mounting groove 4a2, and the first mounting groove 4a2 is communicated with the second mounting groove 4b 2; a clamping block 5a which is matched with the first mounting groove 4a2 in shape is inserted into each first mounting groove 4a 2; when the first joint 4a and the second joint 4b are installed, the annular convex block 4b1 of the second joint 4b is inserted into the first annular groove 4a1 of the first joint 4a, and in the process, the columnar convex block 4a1a slides along the limiting groove 4b1a on the annular convex block 4b1, so that the first joint 4a and the second joint 4b cannot rotate relatively, at the moment, the upper end surface of the first joint 4a is attached to the lower end surface of the second joint 4b, the clamping block 5a is inserted into the first installation groove 4a2 and slides into the second installation groove 4b2, at the moment, the first joint 4a and the second joint 4b are installed, and when the first joint 4a and the second joint 4b are disassembled, the clamping block 5a is taken out, so that the second joint 4b can be directly pulled out.

Further, as shown in fig. 3, 4, 6, 7, and 8:

the connecting piece 5 also comprises two push rods 5b, and each push rod 5b is sleeved with a spring 5c; the upper end of the first joint 4a is provided with a first circular groove 4a3 communicated to the inner cavity of the first joint 4a, the upper end part of the first circular groove 4a3 is formed with threads, the first circular groove 4a3 is connected with a tubular part 4c in an internal thread mode, and the outer wall of the lower end part of the tubular part 4c is provided with a second annular groove 4c1; the first circular groove 4a3 is provided with a third mounting groove 4a4 corresponding to the second mounting groove 4b2 and having a shape matched with the second mounting groove 4b2, and the second mounting groove 4b2 is communicated with the second annular groove 4c1 through the third mounting groove 4a 4; each clamping block 5a is provided with a slotted hole 5a1 for mounting a push rod 5b, the push rod 5b penetrates through the slotted hole 5a1 to the second annular groove 4c1, a first strip-shaped baffle 5b1 is formed at one end of the push rod 5b, which is positioned in the second annular groove 4c1, and a second strip-shaped baffle 5b2 is formed at the other end of the push rod 5 b; one end of the clamping block 5a close to the second strip-shaped baffle 5b2 is provided with a second circular groove 5a2 coaxial with the slotted hole 5a1, and two ends of the spring 5c are respectively abutted against the bottom of the second circular groove 5a2 and the bottom of the second strip- shaped baffle 5b 2.

Based on the above embodiment, the spring 5c is sleeved on each push rod 5 b; the upper end of the first joint 4a is provided with a first circular groove 4a3 communicated to the inner cavity of the first joint 4a, the upper end part of the first circular groove 4a3 is formed with threads, the first circular groove 4a3 is connected with a tubular part 4c in an internal thread mode, and the outer wall of the lower end part of the tubular part 4c is provided with a second annular groove 4c1; the first circular groove 4a3 is provided with a third mounting groove 4a4 corresponding to the second mounting groove 4b2 and adapting to the shape of the second mounting groove 4b2, and the second mounting groove 4b2 is communicated with the second annular groove 4c1 through the third mounting groove 4a 4; each clamping block 5a is provided with a slotted hole 5a1 for mounting a push rod 5b, the push rod 5b penetrates through the slotted hole 5a1 to the second annular groove 4c1, a first strip-shaped baffle 5b1 is formed at one end, located in the second annular groove 4c1, of the push rod 5b, and a second strip-shaped baffle 5b2 is formed at the other end of the push rod 5 b; the fixture block 5a is close to the one end of second bar baffle 5b2 and has seted up the second circular slot 5a2 coaxial with slotted hole 5a1, the both ends of spring 5c butt respectively in the bottom of second circular slot 5a2 and the bottom of second bar baffle 5b2, when fixture block 5a inserts in first mounting groove 4a2, in first bar baffle 5b1 to the second annular groove 4c1, rotate second bar baffle 5b2 this moment and make first bar baffle 5b1 slope certain angle, loosen the rotation that the hand stopped to second bar baffle 5b2 this moment, spring 5c extends and drives push rod 5b and to slide to the outside until on the inner wall of first bar baffle 5b1 butt to first circular slot 4a3, can prevent that fixture block 5a from sliding in first mounting groove 4a2 and leading to drop, when dismantling, rotate second bar baffle 5b2 to first bar baffle and be parallel state with first mounting groove 4a2, the pulling second bar baffle 5b2 can drive the first bar baffle roll-off of fixture block 5a 2.

Further, as shown in fig. 3, 7 and 8:

the upper end of the first joint 4a is provided with a third annular groove 4a5, and the lower end of the second joint 4b is provided with a fourth annular groove 4b3 matched with the third annular groove 4a 5; a seal ring 4a6 is fixedly mounted in the third annular groove 4a 5.

Based on the above embodiment, in the present application, the upper end of the first joint 4a is provided with the third annular groove 4a5, and the lower end of the second joint 4b is provided with the fourth annular groove 4b3 adapted to the third annular groove 4a 5; a seal ring 4a6 is fixedly arranged in the third annular groove 4a5, so that the sealing performance between the first joint 4a and the second joint 4b can be enhanced.

Further, as shown in fig. 1 and 5:

the gas storage pipeline 3 is fixedly connected with a pressure relief valve 7 communicated to the inner cavity of the gas storage pipeline.

Based on above-mentioned embodiment, fixedly connected with communicates to the pressure relief valve 7 of its inner chamber on this application through gas storage pipeline 3, when dismantling first joint 4a and second joint 4b after the verification is accomplished, opens pressure relief valve 7 earlier, treats that gas storage pipeline 3 internal gas pressure descends the back, dismantles first joint 4a and second joint 4b, prevents direct dismantlement because the too big personnel of causing of atmospheric pressure are injured.

Further, as shown in fig. 1:

the pressure check gauge 2 is provided with a lifting belt 2a.

Based on above-mentioned embodiment, this application is through installing lifting belt 2a on pressure check gauge 2, convenient and the check-up personnel to the removal of pressure check gauge 2.

Further, as shown in fig. 1 and 5:

an air pipe joint 8 is installed at one end of the air storage pipeline 3, and the air pipe 6 is communicated with the air storage pipeline 3 through the air pipe joint 8.

Based on above-mentioned embodiment, trachea joint 8 is installed through the one end of gas storage pipeline 3 to this application, and breather pipe 6 passes through trachea joint 8 and communicates with gas storage pipeline 3, and the dismantlement and the connection of breather pipe 6 of being convenient for.

The above embodiments only represent one or several embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (7)

1. A pressure transmitter calibration device comprises a transmitter body (1) and a pressure calibrator (2), wherein the pressure calibrator (2) comprises a pressure pump and a plurality of air pipe connectors, and the transmitter body (1) is electrically connected with the pressure calibrator (2) through a cable;

the gas storage type transmitter is characterized by further comprising a gas storage pipeline (3), a converter (4), a connecting piece (5) and a vent pipe (6), wherein the transmitter body (1) is communicated with the gas storage pipeline (3) through the converter (4), the converter (4) comprises a first connector (4 a) and a second connector (4 b), and the first connector (4 a) and the second connector (4 b) are connected in a quick-release manner through the connecting piece (5);

the gas storage pipeline (3) is positioned at one side of the pressure calibrator (2), and the gas storage pipeline (3) is communicated with a gas pipe connecting port of the pressure calibrator (2) through a vent pipe (6);

a threaded hole (3 a) communicated with the inner cavity of the gas storage pipeline (3) is formed in the gas storage pipeline, the first connector (4 a) is in threaded connection with the threaded hole (3 a) of the gas storage pipeline (3), the second connector (4 b) is connected to the upper end of the first connector (4 a), and the transmitter body (1) is installed at the upper end of the second connector (4 b).

2. The verification device of a pressure transmitter according to claim 1, wherein the connection member (5) comprises a latch (5 a);

the first joint (4 a) and the second joint (4 b) are of a pipeline type structure, the upper end of the first joint (4 a) is provided with a first annular groove (4 a 1), the lower end of the second joint (4 b) is provided with an annular lug (4 b 1) inserted into the first annular groove (4 a 1), the bottom end of the first annular groove (4 a 1) is provided with two symmetrically distributed columnar lugs (4 a1 a), and the annular lug (4 b 1) is provided with two limiting grooves (4 b1 a) matched with the columnar lugs (4 a1 a);

the inner cavity of the second joint (4 b) is provided with threads, and the transmitter body (1) is in threaded connection with the inner cavity of the second joint (4 b);

the outer wall of the first joint (4 a) is provided with first mounting grooves (4 a 2) extending along the radial direction of the first joint (4 a), and the two first mounting grooves (4 a 2) are symmetrically distributed on the first joint (4 a);

the annular convex block (4 b 1) is provided with a second mounting groove (4 b 2) which corresponds to the first mounting groove (4 a 2) and is adaptive to the first mounting groove in shape, and the first mounting groove (4 a 2) is communicated with the second mounting groove (4 b 2);

a clamping block (5 a) which is matched with the first mounting groove (4 a 2) in shape is inserted into each first mounting groove (4 a 2).

3. The verifying device of the pressure transmitter, according to claim 2, characterized in that the connecting member (5) further comprises two push rods (5 b), each push rod (5 b) being sleeved with a spring (5 c);

the upper end of the first joint (4 a) is provided with a first circular groove (4 a 3) communicated to the inner cavity of the first joint (4 a), the upper end part of the first circular groove (4 a 3) is formed with threads, the first circular groove (4 a 3) is connected with a tubular piece (4 c) in an internal thread mode, and the outer wall of the lower end part of the tubular piece (4 c) is provided with a second annular groove (4 c 1);

a third mounting groove (4 a 4) corresponding to the second mounting groove (4 b 2) and adapting to the shape of the second mounting groove is formed in the first circular groove (4 a 3), and the second mounting groove (4 b 2) is communicated with the second annular groove (4 c 1) through the third mounting groove (4 a 4);

a slotted hole (5 a 1) used for installing a push rod (5 b) is formed in each clamping block (5 a), the push rod (5 b) penetrates through the slotted hole (5 a 1) to the second annular groove (4 c 1), a first strip-shaped baffle (5 b 1) is formed at one end, located in the second annular groove (4 c 1), of the push rod (5 b), and a second strip-shaped baffle (5 b 2) is formed at the other end of the push rod (5 b);

one end of the clamping block (5 a) close to the second strip-shaped baffle (5 b 2) is provided with a second circular groove (5 a 2) coaxial with the slotted hole (5 a 1), and two ends of the spring (5 c) are respectively abutted against the bottom of the second circular groove (5 a 2) and the bottom of the second strip-shaped baffle (5 b 2).

4. The pressure transmitter calibration device according to claim 2, wherein the upper end of the first joint (4 a) is provided with a third annular groove (4 a 5), and the lower end of the second joint (4 b) is provided with a fourth annular groove (4 b 3) adapted to the third annular groove (4 a 5);

a sealing ring (4 a 6) is fixedly arranged in the third annular groove (4 a 5).

5. The pressure transmitter calibration device of claim 1, wherein the gas storage pipe (3) is fixedly connected with a pressure relief valve (7) connected to an inner cavity thereof.

6. Calibration arrangement for a pressure transmitter according to claim 1, characterized in that the pressure calibration gauge (2) is provided with a pull strip (2 a).

7. The calibrating apparatus for a pressure transmitter according to claim 1, wherein an air pipe joint (8) is installed at one end of the air storage pipe (3), and the air pipe (6) is communicated with the air storage pipe (3) through the air pipe joint (8).

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