CN217687655U

CN217687655U - 2088 type pressure transmitter

Info

Publication number: CN217687655U
Application number: CN202221698047.6U
Authority: CN
Inventors: 张金涛
Original assignee: Shanghai Zhanpeng Electronical Auto Control Equipment Co ltd
Current assignee: Shanghai Zhanpeng Electronical Auto Control Equipment Co ltd
Priority date: 2022-07-04
Filing date: 2022-07-04
Publication date: 2022-10-28
Anticipated expiration: 2032-07-04

Abstract

The utility model belongs to the field of pressure transmitters, in particular to a 2088 type pressure transmitter, which comprises a pressure transmitter body, wherein an anti-interference sheath is arranged in the middle of the bottom side of the pressure transmitter body, and a pressure sensor is arranged in a pressure tapping interface; the anti-interference pressure transmitter comprises a pressure transmitter body, wherein a metal shielding cover which covers the outside of an anti-interference sheath is arranged outside the pressure transmitter body, the metal shielding cover is of a splicing structure, a connecting block is fixed on the side surface of the metal shielding cover, an installation support is arranged on the outer side of the pressure transmitter body, the upper end and the lower end of the installation support are respectively bent inwards and vertically to form supporting plates, a screw rod and a limiting rod which are parallel to each other are arranged between the upper supporting plate and the lower supporting plate, the lower end of the screw rod is rotatably connected to the lower supporting plate, the upper end of the screw rod penetrates out of the upper supporting plate and is provided with a rotating handle, and the upper end and the lower end of the limiting rod are respectively fixed on the opposite surfaces of the two supporting plates; the connecting block is sleeved on the screw in a thread fit manner and sleeved on the limiting rod in a sliding manner.

Description

2088 type pressure transmitter

Technical Field

The utility model relates to a pressure transmitter field specifically is a 2088 type pressure transmitter.

Background

The pressure transmitter is a device for converting pressure into pneumatic signal or electric signal for control and remote transmission, and can convert the physical pressure parameters of gas, liquid, etc. sensed by the load cell sensor into standard electric signals (such as 4-20mADC, etc.) for supplying secondary instruments such as indication alarm, recorder, regulator, etc. to measure, indicate and regulate process. 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 2088 type pressure transmitter inherits the design tradition of TSK51 series and is designed for a double-chamber shell. The dual chamber housing isolates the electronics from the outside environment, preventing damage to the transmitter due to environmental moisture or conduit condensation. Wire conduit sealing is generally not required. In addition, even when the sensor membrane head is completely damaged, the double-chamber structure can ensure that the wiring terminal and the conduit are isolated from the process.

The 2088 type pressure transmitter has insufficient radio frequency resistant effect in the application process, and the detection effect is easily inaccurate due to interference of electromagnetic waves and the like in the use process; and the pressure transmitter is inconvenient to finely adjust the installation height when being installed and fixed.

Disclosure of Invention

An object of the utility model is to provide a 2088 type pressure transmitter to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a2088 type pressure transmitter comprises a pressure transmitter body, wherein a display screen is arranged on the side end face of the pressure transmitter body, a data transmission interface is arranged on one side of the top of the pressure transmitter body, an anti-interference sheath is arranged in the middle of the bottom side of the pressure transmitter body, the bottom of the anti-interference sheath is connected with a pressure taking interface, and a pressure sensor is arranged in the pressure taking interface; the anti-interference pressure transmitter comprises a pressure transmitter body, wherein a metal shielding cover which is covered outside an anti-interference sheath is arranged outside the pressure transmitter body, the metal shielding cover is of a splicing structure, a connecting block is fixed on the side surface of the metal shielding cover, an installation support is arranged outside the pressure transmitter body, the upper end and the lower end of the installation support are respectively bent inwards and vertically to form supporting plates, a screw and a limiting rod which are parallel to each other are arranged between the upper supporting plate and the lower supporting plate, the lower end of the screw is rotatably connected to the lower supporting plate, the upper end of the screw penetrates out of the upper supporting plate and is provided with a rotating handle, and the upper end and the lower end of the limiting rod are respectively fixed on the opposite surfaces of the two supporting plates; the connecting block is sleeved on the screw rod in a threaded fit mode and sleeved on the limiting rod in a sliding mode.

Preferably, a metal shielding wire is wound inside the interference-proof sheath.

Preferably, a filter circuit, a signal amplification circuit, an analog-to-digital conversion circuit and a single chip microcomputer are integrally installed in the anti-interference sheath in the pressure transmitter body, the filter circuit is electrically connected with the pressure sensor, the filter circuit is electrically connected with the analog-to-digital conversion circuit through the signal amplification circuit, the analog-to-digital conversion circuit is electrically connected with the single chip microcomputer, and the single chip microcomputer is electrically connected with the display screen.

Preferably, the metal shielding case comprises two symmetrical semicircular housings, avoidance openings for mounting the pressure transmitter body are reserved at two ends of each housing, the two housings are mutually butted to form a cylindrical cover body structure, two sides of each housing are outwards turned to form lug plates, a plurality of mounting holes are formed in the lug plates, and the two lug plates on the same sides of the two housings are fixedly mounted through bolt assemblies.

Preferably, one of them two otic placode medial surfaces of housing all are fixed with a sealing strip, another the seal groove that supplies the sealing strip embedding is all seted up to two otic placode medial surfaces of housing.

Preferably, a screw hole in threaded connection with the screw rod and a guide hole for the limiting rod to pass through in a sliding mode are reserved on the connecting block.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a set up the jam-proof sheath at the circuit integrated position of pressure transmitter body to cover and establish the metal shielding cover in jam-proof sheath outside, form dual anti-electromagnetic wave interference effect, guarantee to detect the accuracy of structure; meanwhile, the pressure transmitter body is arranged on the mounting bracket through the metal shielding cover, and the metal shielding cover is of a splicing structure and is convenient to disassemble and assemble, so that the pressure transmitter is convenient to disassemble and assemble integrally; the mounting bracket is connected with the metal shielding cover by utilizing the matching of the screw rod and the limiting rod, can finely adjust the mounting height of the pressure transmitter body, and is simple in operation and convenient to use.

Drawings

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

fig. 2 is a schematic structural diagram of the metal shielding case of the present invention.

In the figure: 1. a pressure transmitter body; 2. a display screen; 3. a data transmission interface; 4. an anti-interference sheath; 5. a pressure tapping interface; 6. a metal shield case; 7. connecting blocks; 8. mounting a bracket; 9. a support plate; 10. a screw; 11. a limiting rod; 12. a handle is rotated; 13. a housing; 14. an ear plate; 15. mounting holes; 16. a bolt assembly; 17. a sealing strip; 18. a sealing groove; 19. a screw hole; 20. and (4) a guide hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-2, the present invention provides a technical solution: a2088 type pressure transmitter comprises a pressure transmitter body 1, wherein a display screen 2 is arranged on the end face of the side of the pressure transmitter body 1, a data transmission interface 3 is arranged on one side of the top of the pressure transmitter body, an anti-interference sheath 4 is arranged in the middle of the bottom side of the pressure transmitter body 1, the bottom of the anti-interference sheath 4 is connected with a pressure taking interface 5 through a pressure sensor, and the pressure sensor is arranged in the pressure taking interface 5; the anti-interference pressure transmitter is characterized in that a metal shielding cover 6 covering the anti-interference sheath 4 is arranged outside the pressure transmitter body 1, the metal shielding cover 6 is of a splicing structure, a connecting block 7 is fixed on the side face of the metal shielding cover 6, an installation support 8 is arranged outside the pressure transmitter body 1, the upper end and the lower end of the installation support 8 are respectively bent inwards and vertically to form support plates 9, a screw 10 and a limiting rod 11 which are parallel to each other are arranged between the upper support plate 9 and the lower support plate 9, the lower end of the screw 10 is rotatably connected to the lower support plate 9, the upper end of the screw penetrates through the upper support plate 9 and is provided with a rotating handle 12, and the upper end and the lower end of the limiting rod 11 are respectively fixed on the opposite faces of the two support plates 9; the connecting block 7 is sleeved on the screw rod 10 in a threaded fit manner and sleeved on the limiting rod 11 in a sliding manner.

Furthermore, a metal shielding wire is wound inside the interference-proof sheath 4.

Furthermore, a filter circuit, a signal amplification circuit, an analog-to-digital conversion circuit and a single chip microcomputer are integrally installed inside the pressure transmitter body 1 at the position of the anti-interference sheath 4, the filter circuit is electrically connected with the pressure sensor, the filter circuit is electrically connected with the analog-to-digital conversion circuit through the signal amplification circuit, the analog-to-digital conversion circuit is electrically connected with the single chip microcomputer, and the single chip microcomputer is electrically connected with the display screen 2.

Furthermore, the metal shielding case 6 includes two symmetrical semicircular housings 13, and two ends of each housing 13 are reserved with an avoidance port for installing the pressure transmitter body 1, the two housings 13 are butted with each other to form a cylindrical housing structure, two sides of each housing 13 are folded outwards to form ear plates 14, the ear plates 14 are provided with a plurality of mounting holes 15, and the two ear plates 14 on the same side of the two housings 13 are fixedly installed through bolt assemblies 16.

Furthermore, one of them the two otic placodes 14 medial surfaces of housing 13 all are fixed with a sealing strip 17, another the seal groove 18 that supplies the embedding of sealing strip 17 has all been seted up to the two otic placodes 14 medial surfaces of housing 13.

Furthermore, a screw hole 19 in threaded connection with the screw 10 and a guide hole 20 for the limiting rod 11 to pass through are reserved on the connecting block 7.

The working principle is as follows:

during installation, the mounting bracket 8 is fixed on an external mounting surface, and the two housings 13 of the metal shielding case 6 are fixedly spliced, so that the pressure transmitter body 1 is fixed in the metal shielding case 6, the two ear plates 14 on the same side of the two housings 13 are fixedly connected through the bolt component 16 (a screw and a nut), when the two housings 13 are butted, the sealing strip 17 on the ear plate 14 of one housing 13 is embedded into the sealing groove 18 on the ear plate 14 of the other housing 13, the sealing connection of the two housings 13 is realized, and the shielding effect is good.

Connecting block 7 threaded connection in the 6 outside of metal shield cover is on screw rod 10 to restrict its rotation through gag lever post 11, when needing to carry out the fine setting to pressure transmitter body 1's mounting height, rotate turning handle 12, drive screw rod 10 and rotate, thereby connecting block 7 on the drive screw rod 10 reciprocates, drive metal shield cover 6 and reciprocate, pressure transmitter body 1 is along with 6 synchronous motion of metal shield cover, realizes the regulation to pressure transmitter body 1's height, easy operation.

The filter circuit, the signal amplification circuit, the analog-to-digital conversion circuit and the single chip are all integrated in the anti-interference sheath 4, and the metal shielding cover 6 is covered outside the anti-interference sheath 4, so that a double anti-electromagnetic wave interference effect is formed, and the accuracy of a detection structure is ensured; during detection, the pressure sensor can detect pressure, detected data are transmitted to the filter circuit, the data are amplified by the signal amplification circuit after being processed by the filter circuit, then the data are converted by the analog-to-digital conversion circuit and displayed on the display screen 2, and the detected data can be transmitted to the remote control terminal through the data transmission interface 3 (wired or wireless connection).

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The 2088 type pressure transmitter is characterized by comprising a pressure transmitter body (1), wherein a display screen (2) is arranged on the end face of the side of the pressure transmitter body (1), a data transmission interface (3) is arranged on one side of the top of the pressure transmitter body, an anti-interference sheath (4) is arranged in the middle of the bottom side of the pressure transmitter body (1), the bottom of the anti-interference sheath (4) is connected with a pressure tapping interface (5), and a pressure sensor is arranged in the pressure tapping interface (5); the anti-interference pressure transmitter is characterized in that a metal shielding cover (6) covering the outside of the anti-interference sheath (4) is arranged outside the pressure transmitter body (1), the metal shielding cover (6) is of a splicing structure, a connecting block (7) is fixed on the side face of the metal shielding cover, an installing support (8) is arranged on the outer side of the pressure transmitter body (1), the upper end and the lower end of the installing support (8) are respectively bent inwards and vertically to form supporting plates (9), a screw (10) and a limiting rod (11) which are parallel to each other are arranged between the upper supporting plate and the lower supporting plate (9), the lower end of the screw (10) is rotatably connected to the lower supporting plate (9), the upper end of the screw penetrates through the upper supporting plate (9) and is provided with a rotating handle (12), and the upper end and the lower end of the limiting rod (11) are respectively fixed on the opposite faces of the two supporting plates (9); the connecting block (7) is sleeved on the screw rod (10) in a thread fit mode and sleeved on the limiting rod (11) in a sliding mode.

2. The 2088 type pressure transmitter of claim 1, wherein: and a metal shielding wire is wound inside the anti-interference sheath (4).

3. The 2088 pressure transmitter of claim 1, wherein: the pressure transmitter comprises a pressure transmitter body (1), and is characterized in that a filter circuit, a signal amplification circuit, an analog-to-digital conversion circuit and a single chip microcomputer are integrally mounted in the pressure transmitter body (1) at the position of an anti-interference sheath (4), the filter circuit is electrically connected with a pressure sensor, the filter circuit is electrically connected with the analog-to-digital conversion circuit through the signal amplification circuit, the analog-to-digital conversion circuit is electrically connected with the single chip microcomputer, and the single chip microcomputer is electrically connected with a display screen (2).

4. The 2088 pressure transmitter of claim 1, wherein: the metal shielding cover (6) comprises two symmetrical semicircular housings (13), avoidance openings for installing the pressure transmitter body (1) are reserved at two ends of each housing (13), the two housings (13) are mutually butted to form a cylindrical cover body structure, two sides of each housing (13) are outwards turned to form ear plates (14), a plurality of installation holes (15) are formed in the ear plates (14), and the two ear plates (14) on the same side of the two housings (13) are fixedly installed through bolt assemblies (16).

5. The 2088 type pressure transmitter of claim 4, wherein: wherein one two otic placodes (14) medial surface of housing (13) all are fixed with a sealing strip (17), another sealing groove (18) that supply sealing strip (17) embedding have all been seted up to two otic placodes (14) medial surfaces of housing (13).

6. The 2088 pressure transmitter of claim 1, wherein: and a screw hole (19) in threaded connection with the screw rod (10) and a guide hole (20) for the limiting rod (11) to pass through in a sliding manner are reserved on the connecting block (7).