CN218724970U

CN218724970U - Pressure gauge with protection mechanism

Info

Publication number: CN218724970U
Application number: CN202222506910.XU
Authority: CN
Inventors: 姚培峰; 刘艳丽
Original assignee: Henan Huanuo Testing Co ltd
Current assignee: Henan Huanuo Testing Co ltd
Priority date: 2022-09-22
Filing date: 2022-09-22
Publication date: 2023-03-24
Anticipated expiration: 2032-09-22

Abstract

The utility model discloses a pressure gauge with a protective mechanism, which comprises a dial plate and a rear cover; dial plate: a connecting pipe is arranged at the mounting port at the lower end of the outer side surface of the connecting pipe, and a connecting flange is arranged at the lower end of the connecting pipe; a rear cover: the inside center department of its front side is equipped with square plug, and square plug pegs graft with the sleeve cooperation that dial plate trailing flank middle part set up, and the leading flank of dial plate is equipped with protection machanism, and the interior cambered surface threaded connection of protection machanism and hou gai, the relief valve is installed through the flange in the middle part of connecting pipe, protection machanism includes spacing, solid fixed ring, explosion-proof glass and mounting bracket, the mounting bracket sets up in the leading flank of dial plate, and the inside joint of mounting bracket has explosion-proof glass, and this manometer of taking protection machanism can in time carry out the pressure release to the pipeline, and the influence that can also greatly reduced external collision caused the dial plate, and the inner structure connection is more stable firm moreover, is difficult not hard up, improves the life of dial plate greatly.

Description

Pressure gauge with protection mechanism

Technical Field

The utility model relates to a manometer technical field specifically is a take protection machanism's manometer.

Background

The pressure gauge is an instrument which takes an elastic element as a sensitive element and measures and indicates pressure higher than ambient pressure, is very common in application, almost extends to all the fields of industrial processes and scientific researches, and is visible everywhere in the fields of heat supply pipe networks, oil and gas transmission, water and gas supply systems, vehicle maintenance and service shops and the like, particularly in the process of industrial process control and technical measurement, because the elastic sensitive element of the mechanical pressure gauge has the characteristics of high mechanical strength, convenient production and the like, the mechanical pressure gauge is more and more widely applied, some existing pressure gauges are lack of a pressure relief mechanism when being used independently, the pressure gauge is easy to damage when the pressure inside a pipeline is overlarge, the pressure gauge is mostly installed in a naked leakage manner, and the pressure gauge is easy to damage due to external collision during subsequent use, and therefore, the pressure gauge with a protection mechanism is provided.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide a take protection machanism's manometer, can in time carry out the pressure release to the pipeline, can also the outside impact of greatly reduced leads to the fact the influence to the dial plate, the inner structure connection is more stable firm moreover, is difficult not hard up, improves the life of dial plate greatly, can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a pressure gauge with a protection mechanism comprises a dial plate and a rear cover;

dial plate: a connecting pipe is arranged at the mounting port at the lower end of the outer side surface of the connecting pipe, and a connecting flange is arranged at the lower end of the connecting pipe;

a rear cover: the inside center department of its front side is equipped with square plug, and square plug is pegged graft with the sleeve cooperation that dial plate trailing flank middle part set up, and the leading flank of dial plate is equipped with protection machanism, and the intrados face threaded connection of protection machanism and back lid can in time carry out the pressure release to the pipeline, can also the greatly reduced external impact to the influence that the dial plate caused, and inner structure connects more stably firm moreover, and difficult not hard up improves the life of dial plate greatly.

Furthermore, a pressure release valve is installed in the middle of the connecting pipe through a flange, and pressure release can be timely carried out on the pipeline.

Further, protection machanism includes spacing, solid fixed ring, explosion-proof glass and mounting bracket, the mounting bracket sets up in the leading flank of dial plate, and the inside joint of mounting bracket has explosion-proof glass, gu fixed ring cover locate the outside front end of dial plate and with the inner wall threaded connection of back lid, gu fixed ring's inside rotates and is connected with spacing, spacing and explosion-proof glass contact, influence that can the external collision of greatly reduced caused the dial plate.

Furthermore, the sealing ring in contact with the edge of the back side face of the explosion-proof glass is arranged in the annular groove formed in the middle of the front face of the mounting frame, and the sealing performance between the explosion-proof glass and the dial plate is guaranteed.

Furthermore, the front end of the outer side face of the dial plate is provided with a gasket, and the gasket is matched with the step face of the rear edge face of the fixing ring to limit the fixing ring.

Furthermore, the front end of the outer side face of the fixing ring is evenly provided with an anti-slip groove, and the anti-slip groove can play an anti-slip role when the fixing ring is rotated.

Further, the inner arc surface upper end of the rear cover is connected with an arc-shaped rack plate through a sliding strip which is symmetrically arranged, the rear side face of the arc-shaped rack plate is fixedly connected with the inner wall of the rear side of the rear cover through a spring, the rear edge face of the fixing ring is evenly provided with teeth matched with the arc-shaped rack plate, the threaded hole on the outer side face of the rear cover is connected with a limiting bolt in an inner thread mode, the limiting bolt is matched with an opening in the middle of the arc-shaped rack plate, and the inner structure is installed more firmly and stably.

Compared with the prior art, the beneficial effects of the utility model are that: this take protection machanism's manometer has following benefit:

1. with the square plug of back lid front side inner wall and the sleeve cooperation grafting of dial plate rear end, can play limiting displacement to the back lid, connect explosion-proof glass joint to inside the mounting bracket of dial plate leading flank, then establish the outside front end to the dial plate with solid fixed ring cover, rotate solid fixed ring, make the interior cambered surface threaded connection of solid fixed ring's lateral surface and back lid, make the spacing of solid fixed ring inside rotation connection and explosion-proof glass contact simultaneously, thereby compress tightly explosion-proof glass, the sealing washer can be sealed the clearance department of explosion-proof glass and dial plate front end, avoid explosion-proof glass inner wall to haze, the influence that can the external impact of greatly reduced caused the dial plate, the service life of dial plate is greatly improved.

2. Solid fixed ring is in the pivoted, gu the tooth and the cooperation of arc rack board of solid fixed ring trailing flank, make arc rack board backward movement, elastic deformation takes place for the spring, when the step face of solid fixed ring rear end and packing ring contact, gu fixed ring is fixed completely, this moment under the spring action of spring, the tooth meshing of arc rack board and solid fixed ring rear side, then rotate spacing bolt, make spacing bolt be located the opening at shape rack board middle part, thereby restriction shape rack board backward movement, and then restriction solid fixed ring's rotation, make the inner structure installation more stable firm, the protecting effect is better.

Drawings

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

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

fig. 3 is a schematic view of the internal sectional structure of the present invention.

In the figure: 1 dial plate, 2 protection machanism, 21 spacing, 22 solid fixed ring, 23 explosion-proof glass, 24 mounting brackets, 3 connecting pipes, 4 flange, 5 relief valves, 6 back lids, 61 square plugs, 7 sleeves, 8 arc rack plates, 9 springs, 10 spacing bolts, 11 packing rings, 12 sealing washers.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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.

Referring to fig. 1-3, the present embodiment provides a technical solution: a pressure gauge with a protection mechanism comprises a dial plate 1 and a rear cover 6;

dial 1: a connecting pipe 3 is arranged at the mounting port at the lower end of the outer side surface of the dial plate, a connecting flange 4 is arranged at the lower end of the connecting pipe 3, a pressure release valve 5 is arranged in the middle of the connecting pipe 3 through a flange, the dial plate 1 is connected with an external pipeline through the connecting flange 4 at the lower end of the connecting pipe 3, when the pressure in the external pipeline exceeds the safety range of the pressure borne by the dial plate 1, the pressure release valve 5 can release the pressure of the external pipeline in time, and the damage to the dial plate 1 caused by overlarge pressure is avoided;

a rear cover 6: a square plug 61 is arranged at the center of the inner part of the front side of the anti-explosion glass watch, the square plug 61 is matched and inserted with a sleeve 7 arranged in the middle of the rear side of a watch plate 1, a protection mechanism 2 is arranged on the front side of the watch plate 1, the protection mechanism 2 is in threaded connection with the inner arc surface of a rear cover 6, the protection mechanism 2 comprises a limiting frame 21, a fixing ring 22, the anti-explosion glass 23 and a mounting frame 24, the mounting frame 24 is arranged on the front side of the watch plate 1, the anti-explosion glass 23 is clamped in the mounting frame 24, the fixing ring 22 is sleeved at the front end of the outer side of the watch plate 1 and in threaded connection with the inner wall of the rear cover 6, the limiting frame 21 is rotatably connected to the inner part of the fixing ring 22, the limiting frame 21 is in contact with the anti-explosion glass 23, a sealing ring 12 in contact with the edge of the rear side of the anti-explosion glass 23 is arranged in a ring groove arranged in the front middle of the front of the mounting frame 24, a gasket 11 is arranged at the front end of the outer side of the watch plate 1, the gasket 11 is matched with the step surface of the rear edge of the fixing ring 22, anti-explosion glass plate, anti-explosion glass can be uniformly arranged at the front end of the anti-explosion glass mounting frame 22, the anti-explosion glass can play a role in the anti-skid groove when the anti-explosion glass watch plate 6 is inserted and inserted to the anti-explosion glass 23, the anti-explosion glass mounting frame 6, the anti-explosion glass 23, then the fixing ring 22 is sleeved to the front end of the outer side surface of the dial plate 1, the fixing ring 22 is rotated to enable the outer side surface of the fixing ring 22 to be in threaded connection with the inner cambered surface of the rear cover 6, meanwhile, the limiting frame 21 which is rotatably connected with the inside of the fixing ring 22 is contacted with the explosion-proof glass 23, thereby compress tightly explosion-proof glass 23, sealing washer 12 can seal the clearance department of explosion-proof glass 23 and dial plate 1 front end, avoids 23 inner walls of explosion-proof glass to haze, can the outside impact of greatly reduced cause dial plate 1.

Wherein: the inner arc surface upper end of the rear cover 6 is connected with an arc rack plate 8 through a sliding strip which is symmetrically arranged, the rear side surface of the arc rack plate 8 is fixedly connected with the inner wall of the rear side of the rear cover 6 through a spring 9, the rear edge surface of a fixing ring 22 is uniformly provided with teeth matched with the arc rack plate 8, the threaded hole inner thread arranged at the upper end of the outer side surface of the rear cover 6 is connected with a limit bolt 10, the limit bolt 10 is matched with the opening at the middle part of the arc rack plate 8, the fixing ring 22 rotates, the teeth of the rear side surface of the fixing ring 22 are matched with the arc rack plate 8, the arc rack plate 8 moves backwards, the spring 9 elastically deforms, the fixing ring 22 is fixed, under the elastic action of the spring 9, the arc rack plate 8 is meshed with the teeth at the rear side of the fixing ring 22, then the limit bolt 10 is rotated, the limit bolt 10 is positioned in the opening at the middle part of the arc rack plate 8, thereby limiting the backward movement of the arc rack plate 8, and further limiting the rotation of the fixing ring 22, the installation of the internal structure is more stable and firm, and the protection effect is better.

The utility model provides a pair of take protection machanism's manometer's theory of operation as follows: connect dial plate 1 and external pipe through flange 4 of connecting pipe 3 lower extreme, when the inside pressure of external pipe surpassed the safety range that dial plate 1 bore pressure, relief valve 5 can in time carry out the pressure release to external pipe, avoid too big damage that causes dial plate 1 of pressure, during the use, cooperate the grafting with the sleeve 7 of 6 front side inner walls of hou gai and dial plate 1 rear end, can play limiting displacement to hou gai 6, connect explosion-proof glass 23 joint to the inside of the mounting bracket 24 of dial plate 1 leading flank, then establish the solid fixed ring 22 cover to the outside front end of dial plate 1, rotate solid fixed ring 22, make solid fixed ring 22's the lateral surface and the interior cambered surface threaded connection of hou 6, make the inside rotation of solid fixed ring 22 connect spacing frame 21 and explosion-proof glass 23 contact simultaneously, thereby compress tightly explosion-proof glass 23, sealing washer 12 can seal the clearance department of explosion-proof glass 23 and dial plate 1 front end, avoid explosion-proof glass 23 inner wall to play the fog, gu fixed ring 22 is in the pivoted simultaneously, gu fixed ring 22 rear side's tooth cooperates with arc rack plate 8, make arc rack plate 8 rear side 8 move backward, thereby make the arc-shaped bolt contact and the solid fixed ring 22 take place the effect of the elastic force of the limit of the solid fixed ring 10, when the solid fixed ring 22 moves down the fixed ring 10, the solid fixed ring moves the fixed ring 10.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. The utility model provides a take protection machanism's manometer which characterized in that: comprises a dial (1) and a rear cover (6);

dial (1): a connecting pipe (3) is arranged at the mounting opening at the lower end of the outer side surface of the connecting pipe, and a connecting flange (4) is arranged at the lower end of the connecting pipe (3);

rear cover (6): a square plug (61) is arranged at the center of the inner part of the front side of the watch dial, the square plug (61) is in matched insertion connection with a sleeve (7) arranged in the middle of the rear side face of the watch dial (1), a protection mechanism (2) is arranged on the front side face of the watch dial (1), and the protection mechanism (2) is in threaded connection with the inner arc face of the rear cover (6).

2. The pressure gauge with the protection mechanism according to claim 1, wherein: and a pressure release valve (5) is arranged in the middle of the connecting pipe (3) through a flange.

3. The pressure gauge with the protection mechanism according to claim 1, wherein: protection machanism (2) are including spacing (21), solid fixed ring (22), explosion-proof glass (23) and mounting bracket (24), mounting bracket (24) set up in the leading flank of dial plate (1), and the inside joint of mounting bracket (24) has explosion-proof glass (23), gu fixed ring (22) cover locate the outside front end of dial plate (1) and with the inner wall threaded connection of back lid (6), the inside of solid fixed ring (22) is rotated and is connected with spacing (21), spacing (21) and explosion-proof glass (23) contact.

4. The pressure gauge with the protection mechanism according to claim 3, wherein: and a sealing ring (12) which is in contact with the edge of the rear side face of the explosion-proof glass (23) is arranged in an annular groove formed in the middle of the front face of the mounting rack (24).

5. The pressure gauge with the protection mechanism according to claim 3, wherein: the dial plate is characterized in that a gasket (11) is arranged at the front end of the outer side face of the dial plate (1), and the gasket (11) is matched with a step face of the rear edge face of the fixed ring (22).

6. The pressure gauge with the protection mechanism according to claim 3, wherein: the front end of the outer side surface of the fixing ring (22) is uniformly provided with anti-skidding grooves.

7. The pressure gauge with the protection mechanism according to claim 3, wherein: the inner arc surface upper end of back lid (6) has arc rack plate (8) through the draw runner sliding connection that the symmetry set up, through spring (9) fixed connection between the trailing flank of arc rack plate (8) and the rear side inner wall of back lid (6), the back face of solid fixed ring (22) evenly be provided with arc rack plate (8) complex tooth, the screw hole female connection that back lid (6) lateral surface upper end set up has stop bolt (10), stop bolt (10) and the opening cooperation setting at arc rack plate (8) middle part.