CN217878148U

CN217878148U - Corrosion-resistant pressure transmitter

Info

Publication number: CN217878148U
Application number: CN202221982752.9U
Authority: CN
Inventors: 吴浩; 于莹
Original assignee: Shanghai Shengshi Internet Of Things Technology Co ltd
Current assignee: Shanghai Shengshi Internet Of Things Technology Co ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2022-11-22
Anticipated expiration: 2032-07-29

Abstract

The utility model belongs to the technical field of the changer, specifically disclose a corrosion-resistant pressure transmitter, including pressure interface, protection casing and hou gai, the last joint that is provided with of pressure interface, the one end that pressure interface kept away from the joint is provided with the protection casing, pressure interface's fluting is in the internal core sealing washer that is provided with of protective housing, one side that pressure interface was kept away from to the core sealing washer is provided with the pressure measurement component, one side that the core sealing washer was kept away from to the pressure measurement component is provided with the pressure cap, one side that the pressure measurement component was kept away from to the pressure cap is provided with the circuit board, be connected with the cable conductor on the circuit board, the one end that pressure interface was kept away from to the protection casing is provided with the back lid and has seted up the spread groove, the cable conductor passes spread groove and the back lid on the protection casing, the cable conductor outside is equipped with toper sealing gasket and lock nut in the spread groove endotheca, be provided with protective structure on the pressure interface, protective structure includes the adapter sleeve, the guard ring, the guard gate, the buckle, the hasp, spring and go-between.

Description

Corrosion-resistant pressure transmitter

Technical Field

The utility model relates to a pressure transmitter technical field specifically is a corrosion-resistant pressure transmitter.

Background

Pressure transmitter is one kind and converts pressure into pneumatic signal or electric signal and controls and teletransmission's equipment, the pressure interface and the casing of conventional pressure sensor generally adopt stainless steel material to make on the market now, connect and can be corroded in the strong acid of high temperature or strong alkaline medium, and the sealed mode of conventional sensor core also can receive the corruption, sensor inside along with time lapse, also can receive corrosive gas's corruption, cause the sensor trouble, and current pressure transmitter can't protect the guide head when not using, this makes the guide head fall the dust very easily or receive external factor and cause the damage, thereby influence normal use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a corrosion-resistant pressure transmitter is in order to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: a corrosion-resistant pressure transmitter comprises a pressure interface, a protective shell and a rear cover, wherein the pressure interface is provided with a joint, the pressure interface is made of PTEF materials, one end of the pressure interface, which is far away from the joint, is provided with the protective shell, a notch of the pressure interface is arranged in the protective shell and is provided with a core sealing ring, the core sealing ring is made of FFKM materials, one side of the core sealing ring, which is far away from the pressure interface, is provided with a pressure measuring element, one side of the pressure measuring element, which is far away from the core sealing ring, is provided with a pressure cap, the pressure cap is in threaded connection with the pressure interface, the pressure cap is screwed into the pressure interface and tightly presses, seals and fixes the pressure measuring element, the pressure cap is made of red copper, and the pressure measuring element cannot be slightly bent due to the soft red copper, thereby guarantee pressure measurement element's long-term stability, one side that pressure measurement element was kept away from to the pressure cap is provided with the circuit board, be connected with the cable conductor on the circuit board, the cable conductor also adopts the PTEF material, the one end that pressure interface was kept away from to the protection casing is provided with the back lid and has seted up the spread groove, the cable conductor passes spread groove and back lid on the protection casing, the cable conductor outside is equipped with the sealed pad of toper and lock nut in the spread groove endotheca, lock nut screw in protection casing fit with the sealed pad of toper and lock the cable conductor, ensure whole integrated circuit cavity is internal all sealed, the sealed pad of toper adopts the FFKM material, be provided with protective structure on the pressure interface, protective structure includes the adapter sleeve, the protective ring, the protective cover, the buckle, hasp, spring and go-between.

Preferably, the connecting sleeve is sleeved outside the pressure interface, the connecting ring sleeve and the spring are sleeved inside the connecting sleeve and outside the pressure interface, one end of the connecting ring is attached to the connecting sleeve, the spring is located at the other end of the connecting ring, and two ends of the spring are connected to the connecting sleeve and the connecting ring respectively.

Preferably, the protective ring is connected in go-between one end and is passed the adapter sleeve, and the protective ring keeps away from the one end of go-between and is provided with the protective cover, and protective cover one end is connected on the protective ring through rotating, is provided with the observation window on the protective cover.

Preferably, hasps are symmetrically arranged on two sides of the connecting sleeve, and buckles matched with the hasps are symmetrically arranged on two sides of the protective ring close to the protective cover.

Preferably, the pressure measuring element and the circuit board are fixed through screws, so that the shock resistance of the pressure measuring element is guaranteed.

Preferably, the protective shell is in threaded connection with the pressure interface, and an internal circuit is sealed and protected through an O-shaped ring.

Preferably, the rear cover is screwed into the protective shell through threads, epoxy resin glue is filled in the rear cover, the swing amplitude of the cable is limited to be too large, and the locking nut is loosened.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses through the joint on guard ring and the protective cover protection pressure interface when not using, only need open the protective cover during use, then the guard ring is pulled backward, then with the hasp card on the buckle alright expose normal use with the joint, because of whole casing, pressure interface and sealed mode are corrosion resistance's material to ensure inside corrosive gas can't get into the protection casing, thereby guarantee its stability, the utility model discloses the corrosion resistance is good to can protect pressure interface when not using.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic side sectional view of the present invention;

fig. 3 is a schematic view of the protective ring opening structure of the present invention.

In the figure: 1. a pressure interface; 2. a core body sealing ring; 3. a pressure measuring element; 4. pressing the cap; 5. a circuit board; 6. a protective housing; 7. a rear cover; 8. a cable wire; 9. locking the nut; 10. a tapered gasket; 11. connecting sleeves; 12. a guard ring; 13. a protective cover; 14. an observation window; 15. buckling; 16. a hasp; 17. a spring; 18. a connecting ring; 19. and (4) a joint.

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 work 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 orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, 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 of ordinary skill in the art.

Referring to fig. 1-3, the present invention provides a technical solution: a corrosion-resistant pressure transmitter comprises a pressure interface 1, a protective shell 6 and a rear cover 7, wherein a joint 19 is arranged on the pressure interface 1, the pressure interface 1 is made of PTEF materials, the protective shell 6 is arranged at one end, far away from the joint 19, of the pressure interface 1, a core sealing ring 2 is arranged in the protective shell 6 in a groove of the pressure interface 1, the core sealing ring 2 is made of FFKM materials, a pressure measuring element 3 is arranged at one side, far away from the pressure interface 1, of the core sealing ring 2, a pressing cap 4 is arranged at one side, far away from the core sealing ring 2, of a pressure measuring element, the pressing cap 4 is in threaded connection with the pressure interface 1, the pressing cap 4 is screwed into the pressure interface 1 and tightly presses and seals the pressure measuring element 3, the pressing cap 4 is made of red copper, and the pressure measuring element 3 cannot be slightly bent due to the softness of the red copper, thereby guarantee pressure measurement element 3's long-term stability, one side that pressure measurement element 3 was kept away from to pressure cap 4 is provided with circuit board 5, be connected with cable conductor 8 on the circuit board 5, cable conductor 8 also adopts the PTEF material, the one end that pressure interface 1 was kept away from to protection casing 6 is provided with back lid 7 and has seted up the spread groove, cable conductor 8 passes spread groove and back lid 7 on the protection casing 6, the cable conductor 8 outside is equipped with tapered seal pad 10 and lock nut 9 in the spread groove endotheca, lock nut 9 screw in protection casing 6 fit tapered seal pad 10 with cable conductor 8 locking, ensure whole integrated circuit cavity internal all sealings, tapered seal pad 10 adopts the FFKM material, be provided with protective structure on the pressure interface 1, protective structure includes adapter sleeve 11, protective ring 12, protective cover 13, buckle 15, hasp 16, spring 17 and go-between.

Further, the connecting sleeve 11 is sleeved outside the pressure interface 1, the connecting ring 18 and the spring 17 are sleeved inside the connecting sleeve 11 and outside the pressure interface 1, one end of the connecting ring 18 is attached to the connecting sleeve 11, the spring 17 is located at the other end of the connecting ring 18, and two ends of the spring 17 are connected to the connecting sleeve 11 and the connecting ring 18 respectively.

Further, the protective ring 12 is connected in go-between 18 one end and passes adapter sleeve 11, and the one end that protective ring 12 kept away from go-between 18 is provided with protective cover 13, and protective cover 13 one end is connected on protective ring 12 through rotating, is provided with observation window 14 on the protective cover 13.

Furthermore, hasps 16 are symmetrically arranged on two sides of the connecting sleeve 11, and buckles 15 matched with the hasps 16 are symmetrically arranged on two sides of the protective ring 12 close to the protective cover 13.

Furthermore, the pressure measuring element 3 and the circuit board 5 are fixed through screws, so that the shock resistance of the pressure measuring element is ensured.

Further, the protective shell 6 is connected with the pressure interface 1 through threads, and an internal circuit is protected through sealing of an O-shaped ring.

Furthermore, the rear cover 7 is screwed into the protective shell 6 through threads, epoxy resin glue is filled in the rear cover, the swing amplitude of the cable 8 is limited to be too large, and the locking nut 9 is loosened.

The working principle is as follows: open protective cover 13 during the use, then press guard ring 12 backward, make the protection trade and drive go-between 18 and press spring 17 backward, make spring 17 shrink, draw to behind the bottom alright utilize hasp 16 card on the adapter sleeve 11 fixed with guard ring 12 on buckle 15, at this moment alright normal use, because the utility model discloses a whole casing, pressure interface 1 and sealing method are corrosion resistance's material, thereby ensure that corrosive gas can't get into inside protective housing 6, thereby guarantee its stability, and press the material red copper of cap 4, because of red copper is soft, can not make pressure measurement element 3 take place little bending, thereby guarantee pressure measurement element 3's long-term stability, only need to open hasp 16 from buckle 15 when not using, at this moment spring 17 just can push back go-between 18, make go-between 18 drive ring 12 move backward, thereby make go-between 18 playback, then close protective cover 13 and protect pressure interface 1, the utility model discloses the corrosion resistance is good, and can protect pressure interface 1 when not using.

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. A corrosion-resistant pressure transmitter which characterized in that: the pressure measuring device comprises a pressure interface (1), a protective shell (6) and a rear cover (7), wherein a joint (19) is arranged on the pressure interface (1), one end, far away from the joint (19), of the pressure interface (1) is provided with the protective shell (6), a groove of the pressure interface (1) is arranged in the protective shell (6) and is provided with a core sealing ring (2), one side, far away from the pressure interface (1), of the core sealing ring (2) is provided with a pressure measuring element (3), one side, far away from the core sealing ring (2), of the pressure measuring element (3) is provided with a pressing cap (4), the pressing cap (4) is in threaded connection with the pressure interface (1), the pressing cap (4) is screwed into the pressure interface (1) and tightly presses and seals and fixes the pressure measuring element (3), one side, far away from the pressure measuring element (3), of the pressing cap (4) is provided with a circuit board (5), the circuit board (8) is connected onto the circuit board (5), one end, far away from the pressure interface (1) of the protective shell (6) is provided with the rear cover (7) and is provided with a conical sealing gasket (10), the conical sealing gasket (10) is sleeved on the outer side of the protective shell (6), and is provided with the conical sealing gasket (10) The cable connector is characterized in that a cable (8) is locked, a protective structure is arranged on the pressure connector (1), and the protective structure comprises a connecting sleeve (11), a protective ring (12), a protective cover (13), a buckle (15), a hasp (16), a spring (17) and a connecting ring (18).

2. A corrosion resistant pressure transmitter as claimed in claim 1, wherein: adapter sleeve (11) cover is established in pressure interface (1) outside, and adapter sleeve (11) inboard and pressure interface (1) outside are all established to go-between (18) and spring (17) cover, and go-between (18) one end is laminated with adapter sleeve (11), and spring (17) are located the go-between (18) other end, and spring (17) both ends are connected respectively on adapter sleeve (11) and go-between (18).

3. A corrosion resistant pressure transmitter as claimed in claim 1, wherein: protective ring (12) are connected in go-between (18) one end and are passed adapter sleeve (11), and the one end that protective ring (12) kept away from go-between (18) is provided with protective cover (13), and protective cover (13) one end is connected on protective ring (12) through rotating, is provided with observation window (14) on protective cover (13).

4. A corrosion resistant pressure transmitter as claimed in claim 1, wherein: hasps (16) are symmetrically arranged on two sides of the connecting sleeve (11), and buckles (15) matched with the hasps (16) are symmetrically arranged at positions, close to the protective cover (13), on two sides of the protective ring (12).

5. A corrosion resistant pressure transmitter as claimed in claim 1, wherein: the pressure measuring element (3) and the circuit board (5) are fixed through screws.

6. A corrosion resistant pressure transmitter as claimed in claim 1, wherein: the protective shell (6) is in threaded connection with the pressure interface (1) and is sealed through an O-shaped ring.

7. A corrosion resistant pressure transmitter as claimed in claim 1, wherein: the rear cover (7) is screwed into the protective shell (6) through threads and connected with the protective shell, and epoxy resin glue is filled inside the protective shell.