CN216246981U

CN216246981U - Pressure transmitter with explosion-proof effect

Info

Publication number: CN216246981U
Application number: CN202122889513.0U
Authority: CN
Inventors: 王鑫; 刘永峰; 李秀玲; 郭小坡
Original assignee: Henan Hotz Electronic Technology Co ltd
Current assignee: Henan Hotz Electronic Technology Co ltd
Priority date: 2021-11-24
Filing date: 2021-11-24
Publication date: 2022-04-08
Anticipated expiration: 2031-11-24

Abstract

The utility model discloses a pressure transmitter with an explosion-proof effect, which comprises a pressure sensor, wherein a pressure connector is inserted into the top of the pressure sensor, a dismounting mechanism is arranged on the outer surface of the top of the pressure sensor, a transmitter shell is arranged on the top of the pressure connector, a sealing ring is arranged on the outer surface of the transmitter shell, a sealing rear cover is connected to the rear side of the pressure sensor in a threaded manner, and a fixing pipe is arranged on the outer surface of the transmitter shell. Through this design, so that the bottom of transmitting pressure and pressure sensor's junction centre gripping sealing process, and to the sealing process of lid behind transmitter casing and the sealing, and at sealed piece, the sealing process of sealed rubber ring to the electric wire, thereby guarantee that the inside oxygen of pressure transmitter is isolated, carry out oxygen when the inside short circuit of pressure transmitter burns and cut off, and then play the flame proof effect, the restriction is within sealed casing, in order to prevent to ignite surrounding inflammable and explosive gas.

Description

Pressure transmitter with explosion-proof effect

Technical Field

The utility model belongs to the technical field of pressure transmitter equipment, and particularly relates to a pressure transmitter with an explosion-proof effect.

Background

A pressure transmitter is a device that converts pressure into a pneumatic signal or an electric signal for control and remote transmission. The pressure sensor can convert physical pressure parameters of gas, liquid and the like sensed by the pressure element sensor into standard electric signals (such as 4-20 mADC and the like) so as to supply secondary instruments such as an indication alarm instrument, a recorder, a regulator and the like for measurement, indication and process regulation.

The existing pressure transmitter is characterized in that when the existing pressure transmitter is used, the circuit generates heat when the pressure transmitter works normally, and forms electric sparks and high temperature when the pressure transmitter is in a fault state, so that the pressure transmitter is burnt inside, surrounding flammable and explosive gas is ignited, potential safety hazards are brought, and the problem is solved through the pressure transmitter with the explosion-proof effect.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides the pressure transmitter with the explosion-proof effect, which solves the problem of potential safety hazard caused by short circuit fault inside the pressure transmitter, and ensures that the pressure transmitter has the explosion-proof effect.

In order to solve the technical problems, the utility model provides the following technical scheme: pressure transmitter with flame proof effect, including pressure sensor, pressure sensor's top is pegged graft there is the pressure connector, pressure sensor's top surface is equipped with dismouting mechanism, the top of pressure connector is equipped with the changer casing, the surface of changer casing is equipped with the sealing washer, pressure sensor's rear side threaded connection has sealed back lid, the surface of changer casing is equipped with fixed pipe, the inside of fixed pipe is equipped with the seal block, the inside of seal block is equipped with sealed rubber ring, one side of seal block is equipped with fixed sleeve, and fixed sleeve and fixed pipe threaded connection, the bottom of pressure connector is equipped with the lower part sealing washer, the bottom of lower part sealing washer is equipped with the collar, the fixed first spring that is equipped with in bottom of collar, and first spring and pressure sensor fixed connection, the outer surface of the pressure connector is provided with a clamping groove.

As a preferred technical scheme, the disassembling and assembling mechanism comprises mounting boxes, a pull rod, a clamping block, a second spring and a limiting column, two symmetrical mounting boxes are fixedly arranged on the outer surface of the pressure sensor, the pull rod is connected to one side of each mounting box in a sliding mode, the second spring is arranged on the outer surface of the pull rod, and the clamping block is fixedly arranged at one end of the pull rod.

As a preferable technical scheme of the utility model, the outer surface of the pressure connector is provided with a positioning block, the inner side of the pressure sensor is provided with two limiting concave blocks, and the two positioning blocks and the two limiting concave blocks are symmetrically arranged.

In a preferred embodiment of the present invention, the diameter of the outer cross section of the lower seal ring is adapted to the diameter of the inner side of the top of the pressure sensor.

As a preferable technical scheme of the utility model, the first springs are provided with a plurality of springs which are distributed annularly.

As a preferable technical scheme of the utility model, the fixture block is in clamping connection with the clamping groove, and the diameter of the cross section of one end of the fixture block is matched with the inner diameter of the clamping groove.

As a preferable technical scheme, the mounting box is internally provided with a limiting column, the limiting column is in sliding connection with the clamping block, and the section of the clamping block is arranged in a T shape.

As a preferred technical scheme of the utility model, the diameter of the inner ring of the sealing rubber ring is slightly smaller than the outer diameter of the wire, and the sealing rubber ring is made of a flame-retardant material.

Compared with the prior art, the utility model can achieve the following beneficial effects:

1. through this design, so that the bottom of transmitting pressure and pressure sensor's junction centre gripping sealing process, and to the sealing process of lid behind transmitter casing and the sealing, and at sealed piece, the sealing process of sealed rubber ring to the electric wire, thereby guarantee that the inside oxygen of pressure transmitter is isolated, carry out oxygen when the inside short circuit of pressure transmitter burns and cut off, and then play the flame proof effect, the restriction is within sealed casing, in order to prevent to ignite surrounding inflammable and explosive gas.

2. Through this design to carry out the high-speed joint to pressure transmitter's pressure connector and pressure sensor, so that avoided the inconvenience that drives when narrow and small space is connected pressure sensor and pressure connector, and improved user's work efficiency.

Drawings

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

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

FIG. 3 is a schematic cross-sectional side view of a pressure sensor according to the present invention

FIG. 4 is a schematic cross-sectional front view of the structure of FIG. 1 according to the present invention;

FIG. 5 is an enlarged view of the structure of FIG. 4 at A in accordance with the present invention;

fig. 6 is an enlarged view of the structure of fig. 4B according to the present invention.

Wherein: 1. a pressure sensor; 2. a pressure connector; 3. a transmitter housing; 4. a seal ring; 5. sealing the rear cover; 6. positioning blocks; 7. a limit concave block; 8. a fixed tube; 9. fixing the sleeve; 10. a sealing block; 11. sealing the rubber ring; 12. a first spring; 13. a mounting ring; 14. a lower seal ring; 15. installing a box; 16. a pull rod; 17. a card slot; 18. a clamping block; 19. a second spring; 20. a limiting column; 21. and a disassembling and assembling mechanism.

Detailed Description

The present invention will be further described with reference to specific embodiments for the purpose of facilitating an understanding of technical means, characteristics of creation, objectives and functions realized by the present invention, but the following embodiments are only preferred embodiments of the present invention, and are not intended to be exhaustive. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.

Example (b):

as shown in fig. 1-6, a pressure transmitter with explosion-proof effect comprises a pressure sensor 1, a pressure connector 2 is inserted into the top of the pressure sensor 1, a dismounting mechanism 21 is arranged on the outer surface of the top of the pressure sensor 1, a transmitter housing 3 is arranged on the top of the pressure connector 2, a sealing ring 4 is arranged on the outer surface of the transmitter housing 3, a rear sealing cover 5 is connected to the rear side of the pressure sensor 1 through screw threads, a fixing tube 8 is arranged on the outer surface of the transmitter housing 3, a sealing block 10 is arranged inside the fixing tube 8, a sealing rubber ring 11 is arranged inside the sealing block 10, a fixing sleeve 9 is arranged on one side of the sealing block 10, the fixing sleeve 9 is in threaded connection with the fixing tube 8, a lower sealing ring 14 is arranged at the bottom of the pressure connector 2, a mounting ring 13 is arranged at the bottom of the lower sealing ring 14, a first spring 12 is fixedly arranged at the bottom of the mounting ring 13, and the first spring 12 is fixedly connected with the pressure sensor 1, the outer surface of the pressure connector 2 is provided with a clamping groove 17; after the pressure connector 2 is contacted with the pressure sensor 1, under the action of elastic deformation of the first spring 12, the first spring 12 pushes the mounting ring 13 to move, so that the mounting ring 13 pushes the lower sealing ring 14 to move, so that the lower sealing ring 14 and the bottom surface of the pressure connector 2 are comprehensively supported, and then the sealing effect of the joint of the pressure connector 2 and the pressure sensor 1 is improved, the transmitter housing 3 and the sealed rear cover 5 are sealed by the sealing ring 4, thereby preventing external oxygen from entering the interior of the transmitter housing 3 through the joint of the transmitter housing 3 and the sealed rear cover 5, and a sealing block 10 are arranged inside the fixed tube 8, when an electric wire passes through the sealing block 10, under the elastic extrusion of the sealing rubber ring 11, the sealing rubber ring 11 and the electric wire are tightly attached, thereby preventing oxygen from entering the interior of the transmitter housing 3 through the fixed tube 8, and under the effect of fixed sleeve 9, so that carry out fixed connection to sealed piece 10, thereby improve sealed piece 10, stability when sealed rubber ring 11 is installed, through this design, so that the bottom of transmitting pressure and pressure sensor 1's junction centre gripping sealing process, and to the sealing process of lid 5 behind changer casing 3 and the sealing, and at sealed piece 10, sealed rubber ring 11 is to the sealing process of electric wire, thereby guarantee the inside oxygen of pressure transmitter and isolate, carry out the oxygen when the inside short circuit of pressure transmitter burns and cut off, and then play the flame proof effect, the restriction is within sealed casing, in order to prevent to ignite the flammable explosive gas around.

In other embodiments, the dismounting mechanism 21 includes a mounting box 15, a pull rod 16, a fixture block 18, a second spring 19, and a limiting post 20, two symmetrical mounting boxes 15 are fixed on the outer surface of the pressure sensor 1, the pull rod 16 is slidably connected to one side of the mounting box 15, the second spring 19 is arranged on the outer surface of the pull rod 16, and the fixture block 18 is fixed on one end of the pull rod 16; when the pressure connector 2 and the pressure sensor 1 are installed, the pressure connector 2 is inserted into the pressure sensor 1, under the positioning action of the positioning block 6 and the limiting concave block 7, the position of the clamping groove 17 corresponds to that of the clamping block 18, the pull rod 16 is pulled to drive the clamping groove 17 to move, the clamping groove 17 is taken into the installation box 15, the pressure connector 2 is pushed, the sealed rear cover 5 pushes the lower sealing ring 14 to be attached to the pressure sensor 1, the pull rod 16 is loosened, under the action of elastic deformation of the second spring 19, the clamping block 18 is pushed to enable the clamping block 18 to be clamped and connected with the clamping groove 17, so that the clamping block 18 and the pressure connector 2 are fixed, then the fixed connection of the pressure sensor 1 and the pressure connector 2 is realized, and the pressure sensor 1 and the pressure connector 2 are separated, through pulling pull rod 16 for pull rod 16 drives fixture block 18 and draw-in groove 17 and separates, realizes then the separation operation of pressure sensor 1 and pressure connector 2, through this design, so that carry out the high-speed joint to pressure transmitter's pressure connector 2 and pressure sensor 1, so that avoided the inconvenience that drives when narrow and small space is connected pressure sensor 1 and pressure connector 2, and improved user's work efficiency.

In other embodiments, the outer surface of the pressure connector 2 is provided with a positioning block 6, the inner side of the pressure sensor 1 is provided with a limiting concave block 7, and the two positioning blocks 6 and the two limiting concave blocks 7 are symmetrically arranged; through the setting of locating piece 6, spacing concave block 7 to play the positioning action when being connected pressure connector 2 and pressure sensor 1, it is more stable when being connected to make draw-in groove 17 and fixture block 18 block.

In other embodiments, the outer cross-sectional diameter of the lower seal ring 14 is adapted to the inside diameter of the top of the pressure sensor 1; the lower sealing ring 14 is arranged in a manner of being matched with the inner side of the top of the pressure sensor 1, so that the lower sealing ring 14 and the pressure sensor 1 are sealed.

In other embodiments, there are several first springs 12, and the first springs 12 are distributed annularly; support collar 13 through the first spring 12 of a plurality of for collar 13 goes on lower part sealing washer 14, promotes to make lower part sealing washer 14 paste the setting with pressure sensor 1 when pressure connector 2, thereby carries out sealing process to pressure connector 2 and pressure sensor 1's junction.

In other embodiments, the latch 18 is in snap-fit connection with the slot 17, and the cross-sectional diameter of one end of the latch 18 is matched with the inner diameter of the slot 17; through the looks adaptation block connection of fixture block 18 and draw-in groove 17 to improve the stability of being connected of fixture block 18 and draw-in groove 17, then through fixture block 18 to compression joint head 2 connection effect.

In other embodiments, the mounting box 15 is internally provided with a limiting column 20, the limiting column 20 is slidably connected with the fixture block 18, and the section of the fixture block 18 is in a T-shape; the limiting columns 20 are arranged to limit the clamping block 18, so that the stability of the clamping block 18 in moving is improved.

In other embodiments, the diameter of the inner ring of the rubber sealing ring 11 is slightly smaller than the outer diameter of the wire, and the rubber sealing ring 11 is made of a flame retardant material.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. 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 utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. Pressure transmitter with flame proof effect, including pressure sensor (1), its characterized in that: the top of pressure sensor (1) is pegged graft and is had pressure connection head (2), the top surface of pressure sensor (1) is equipped with dismouting mechanism (21), the top of pressure connection head (2) is equipped with changer casing (3), the surface of changer casing (3) is equipped with sealing washer (4), the rear side threaded connection of pressure sensor (1) has sealed back lid (5), the surface of changer casing (3) is equipped with fixed pipe (8), the inside of fixed pipe (8) is equipped with sealed piece (10), the inside of sealed piece (10) is equipped with sealed rubber ring (11), one side of sealed piece (10) is equipped with fixed sleeve (9), and fixed sleeve (9) and fixed pipe (8) threaded connection, the bottom of pressure connection head (2) is equipped with lower part sealing washer (14), the bottom of lower part sealing washer (14) is equipped with collar (13), the bottom of collar (13) is fixed and is equipped with first spring (12), and first spring (12) and pressure sensor (1) fixed connection, draw-in groove (17) have been seted up to the surface of pressure connection head (2).

2. The pressure transmitter with the explosion-proof effect of claim 1, characterized in that: dismouting mechanism (21) are including install bin (15), pull rod (16), fixture block (18), second spring (19), spacing post (20), the fixed surface of pressure sensor (1) is equipped with two symmetry install bins (15), one side sliding connection of install bin (15) has pull rod (16), the surface of pull rod (16) is equipped with second spring (19), the fixed fixture block (18) that is equipped with of one end of pull rod (16).

3. The pressure transmitter with the explosion-proof effect of claim 1, characterized in that: the surface of pressure connection head (2) is equipped with locating piece (6), the inboard of pressure sensor (1) is equipped with spacing concave block (7), locating piece (6), spacing concave block (7) all are equipped with two, and the symmetry sets up.

4. The pressure transmitter with the explosion-proof effect of claim 1, characterized in that: the diameter of the outer cross section of the lower sealing ring (14) is matched with the diameter of the inner side of the top of the pressure sensor (1).

5. The pressure transmitter with the explosion-proof effect of claim 1, characterized in that: the first springs (12) are provided with a plurality of springs, and the first springs (12) are distributed annularly.

6. The pressure transmitter with the explosion-proof effect of claim 2, characterized in that: the clamping block (18) is connected with the clamping groove (17) in a clamping mode, and the diameter of the cross section of one end of the clamping block (18) is matched with the inner diameter of the clamping groove (17).

7. The pressure transmitter with the explosion-proof effect of claim 2, characterized in that: the inside of install bin (15) is equipped with spacing post (20), and spacing post (20) and fixture block (18) are sliding connection, the tangent plane of fixture block (18) is "T" font setting.

8. The pressure transmitter with the explosion-proof effect of claim 1, characterized in that: the diameter of the inner ring of the sealing rubber ring (11) is slightly smaller than the outer diameter of the wire, and the sealing rubber ring (11) is made of flame retardant materials.