CN218211826U

CN218211826U - Capacitance type differential pressure leakage measuring instrument

Info

Publication number: CN218211826U
Application number: CN202222511362.XU
Authority: CN
Inventors: 王正旺; 强小勇
Original assignee: Shanghai Chenyi Measurement Technology Co ltd
Current assignee: Shanghai Chenyi Measurement Technology Co ltd
Priority date: 2022-09-22
Filing date: 2022-09-22
Publication date: 2023-01-03
Anticipated expiration: 2032-09-22

Abstract

The utility model relates to a differential pressure measuring apparatu field, concretely relates to capacitanc differential pressure leakage measuring apparatu, including protective housing and visor, the front of protective housing is provided with the measuring joint, the inside of protective housing is provided with the differential pressure measuring apparatu body, the left and right sides at the protective housing back all is provided with the anticollision piece, the inboard of anticollision piece and the inside that is located the protective housing have seted up movable chamber, the inside in activity chamber is provided with spring buffer, spring buffer is connected with the anticollision piece through arc elastic sheet, movable groove has all been seted up with the corresponding position department in arc elastic sheet both ends in activity chamber, compares with current capacitanc differential pressure leakage measuring apparatu, the utility model discloses a design can promote whole protectiveness, convenience and the practicality of capacitanc differential pressure leakage measuring apparatu.

Description

Capacitance type differential pressure leakage measuring instrument

Technical Field

The utility model relates to a differential pressure measuring apparatu field, concretely relates to capacitanc differential pressure leak measurement appearance.

Background

The basic working principle of the differential pressure leakage measuring instrument is that two rubber pipes are respectively connected to different pressure environments, the other end of the differential pressure leakage measuring instrument is connected with the same group of pressure sensors, the pressure difference of the environments measured by the two rubber pipes is judged according to the value of the pressure sensors, and the existing capacitive differential pressure leakage measuring instrument is commonly used for measuring the sealing environment of the capacitance in electronic equipment.

Patent document No.202120578746.6 discloses a digital micro-differential pressure measuring instrument, which comprises a differential pressure measuring instrument, wherein two groups of connectors are fixedly connected to the upper end of the differential pressure measuring instrument, the outer side of each group of connectors is in threaded connection with a square head, two groups of support frames are fixedly connected to the left side and the right side of each group of square heads, a rotating shaft is rotatably connected between the two groups of support frames on the same side of each group of square heads, a rotating rod is fixedly connected to the outer cylindrical surface of each group of rotating shaft, a spring is fixedly connected to one side of the rotating rod and is fixedly connected with the square heads, a round head is fixedly connected to the outer side of each group of square heads, and one end of the round head is in a sharp-mouth shape; the utility model discloses in, square head can with connector threaded connection, conveniently dismantle the change, conveniently change into the circular head model that is suitable for and corresponds with the rubber tube, the bull stick can press from both sides tightly the rubber tube of cover on circular head under the effect of spring, prevents that the rubber tube from droing, its shortcoming lies in: the measuring apparatu belongs to precision instrument, and above-mentioned digital differential pressure measuring apparatu does not have any protector, and when personnel used, the measuring apparatu suffered to collide or the accident was dropped, can cause the damage to its inside measuring apparatu, influences its measuring accuracy.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a capacitanc differential pressure leaks measuring apparatu 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:

the capacitance type differential pressure leakage measuring instrument comprises a protective shell and a protective cover, wherein the protective cover is arranged on the front surface of the protective shell, a measuring joint is arranged on the front surface of the protective shell, and a differential pressure measuring instrument body is arranged in the protective shell;

the left and right sides at the protective housing back all is provided with anti-collision block, the activity chamber has been seted up to the inboard of anti-collision block and the inside that is located the protective housing, the inside in activity chamber is provided with spring buffer, spring buffer passes through arc elastic sheet and is connected with anti-collision block, the activity groove has all been seted up with the corresponding position department in arc elastic sheet both ends in activity chamber.

As the utility model discloses preferred scheme, the top of protective housing is provided with display screen and operating button respectively.

As the utility model discloses preferred scheme, four corners at protective housing top all are provided with the hemisphere and protect and fill up, the left and right sides of protective housing all is provided with the crashproof strip, crashproof piece, hemisphere are rubber materials preparation with the crashproof strip and form in the protection of crashproof piece, hemisphere.

As the utility model discloses preferred scheme, the inside left and right sides of visor all is provided with the grafting piece, the inside of grafting piece is provided with the kicking block, the top and the bottom of kicking block all are provided with the fixture block, and are two sets of the fixture block outside is provided with the spring, the both ends of spring respectively with grafting piece and fixture block fixed connection, the left and right sides of visor all is provided with the slider.

As the utility model discloses preferred scheme, the slider is integral type structural design with the fixture block, and the spout has been seted up with the corresponding position department of slider to the visor of telling, the inserting groove has been seted up with the corresponding position department of inserting block to the protective housing, the draw-in groove has been seted up with the corresponding position department of fixture block to the inserting groove.

As the utility model discloses preferred scheme, the measuring joint is connected with the differential pressure measuring instrument body through the connecting pipe, the top of connecting pipe is provided with the connector, the outside cover of connector is equipped with the rubber tube, the outside cover of rubber tube is equipped with solid fixed ring.

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

1. the utility model discloses in, through the design of protective housing, protect the inside differential pressure measuring apparatu body of protective housing, when preventing that personnel from using, when the measuring apparatu suffered the collision or accident and fell, can cause the damage to its inside measuring apparatu body, influence its measurement accuracy, promoted capacitanc differential pressure leakage measuring apparatu's protectiveness.

2. The utility model discloses in, through the design of visor, when capacitanc differential pressure leakage measuring apparatu does not use, cover the visor and seal the protection with the measuring joint, prevent that the measuring joint from influencing its use with external contact for a long time, further promoted capacitanc differential pressure leakage measuring apparatu's protectiveness.

3. The utility model discloses in, through measuring joint's design, when measuring different electronic equipment, fix the rubber tube, the gas tightness of rubber tube when guaranteeing to measure increases measurement accuracy, and the convenience is to rubber tube quick replacement simultaneously, has promoted capacitanc differential pressure leakage measuring apparatu's convenience.

Drawings

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

fig. 2 is a schematic view of the back structure of the protective shell of the present invention;

fig. 3 is a sectional view of the internal structure of the protective shell of the present invention;

fig. 4 is a cross-sectional view of the inner structure of the plug block of the present invention.

In the figure: 1. a protective shell; 101. an anti-collision block; 102. a movable cavity; 103. a spring damper; 104. an arc-shaped elastic sheet; 105. a movable groove; 106. a display screen; 107. an operation button; 108. a hemispherical protection pad; 109. an anti-collision strip; 2. a protective cover; 201. an insertion block; 202. a top block; 203. a clamping block; 204. a spring; 205. a slider; 3. measuring a joint; 301. a connecting pipe; 302. a connector; 303. a rubber tube; 304. a fixing ring; 4. a differential pressure gauge body.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the scope of the present invention based on the embodiments of the present invention.

In order to facilitate understanding of the invention, a number of embodiments of the invention will be described more fully hereinafter with reference to the accompanying drawings, in which, however, the invention may be embodied in many different forms and is not limited to the embodiments described herein, but rather these embodiments are provided so as to render the disclosure more thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in the specification of the present invention are for the purpose of describing particular embodiments only and are not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

In the embodiment of the method, the first step,

referring to fig. 1-4, the present invention provides a technical solution:

the capacitive differential pressure leakage measuring instrument comprises a protective shell 1 and a protective cover 2, wherein the protective cover 2 is arranged on the front surface of the protective shell 1, a measuring joint 3 is arranged at the top of the protective shell 1, and a differential pressure measuring instrument body 4 is arranged inside the protective shell 1;

the left side and the right side of the back of the protective shell 1 are provided with anti-collision blocks 101, the inner sides of the anti-collision blocks 101 are located inside the protective shell 1, movable cavities 102 are formed in the inner sides of the movable cavities 102, spring buffers 103 are arranged inside the movable cavities 102, the spring buffers 103 are connected with the anti-collision blocks 101 through arc-shaped elastic pieces 104, and movable grooves 105 are formed in positions, corresponding to two ends of each of the movable cavities 102 and the corresponding positions of the arc-shaped elastic pieces 104.

In this embodiment, the implementation scenario specifically includes: before using, close visor 2 and protective housing 1, seal protection to measuring connector 3, prevent that measuring connector 3 from influencing its use with external contact for a long time, protect differential pressure measuring apparatu body 4 through protective housing 1, when preventing personnel from using, when the measuring apparatu suffers the collision or unexpected and drops, can cause the damage to its inside measuring apparatu body 4, influence differential pressure measuring apparatu body 4 measurement accuracy, when measuring electronic equipment, measure test product and standard product simultaneously through measuring connector 3, through the value of contrast pressure leakage and deriving the measuring result, whole operation flow is simple convenient, compare with current capacitanc differential pressure leakage measuring apparatu, the utility model discloses a design can promote capacitanc differential pressure leakage measuring apparatu's whole protectiveness, convenience and practicality.

Referring to fig. 1-3, the left and right sides of the back of the protection case 1 are provided with anti-collision blocks 101, the inner side of the anti-collision block 101 and the inner side of the protection case 1 are provided with movable cavities 102, the inner side of the movable cavity 102 is provided with spring buffers 103, the spring buffers 103 are connected with the anti-collision blocks 101 through arc-shaped elastic sheets 104, the positions of the movable cavities 102 corresponding to the two ends of the arc-shaped elastic sheets 104 are provided with movable grooves 105, the top of the protection case 1 is provided with a display screen 106 and an operation button 107, respectively, when the capacitive differential pressure leakage measuring instrument is accidentally faded, the capacitive differential pressure leakage measuring instrument vertically falls due to inertia, so that the anti-collision blocks 101 are firstly contacted with the ground, the anti-collision blocks 101 absorb the impact force and shrink towards the inner side of the protection case 1, make spring buffer 103 contract, arc elastic sheet 104 causes arc elastic sheet 104 deformation with partial impact force absorption simultaneously, arc elastic sheet 104 expands in to movable chute 105, make most striking produced impact force absorbed by the buffering, thereby protect the inside differential pressure measuring instrument body 4 of protective housing 1, four corners at protective housing 1 top all are provided with hemisphere protection pad 108, the left and right sides of protective housing 1 all is provided with anticollision strip 109, anticollision piece 101, hemisphere protection pad 108 is the rubber materials preparation with anticollision strip 109 and forms, prevent ordinary collision through hemisphere protection pad 108 and anticollision strip 109, protect the outside of protective housing 1, the protectiveness of capacitanc differential pressure leakage measuring instrument has been promoted.

Referring to fig. 1, 2 and 4, the left and right sides inside the protective cover 2 are provided with the insertion blocks 201, the inside of the insertion block 201 is provided with the top block 202, the top and the bottom of the top block 202 are provided with the fixture blocks 203, the outer sides of the two sets of fixture blocks 203 are provided with the springs 204, two ends of the springs 204 are respectively fixedly connected with the insertion blocks 201 and the fixture blocks 203, the left and right sides of the protective cover 2 are provided with the sliders 205, the sliders 205 and the fixture blocks 203 are designed to be of an integral structure, the corresponding positions of the protective cover 2 and the sliders 205 are provided with sliding grooves, the corresponding positions of the protective cover 1 and the insertion blocks 201 are provided with insertion grooves, the corresponding positions of the insertion grooves and the fixture blocks 203 are provided with clamping grooves, when the capacitive differential pressure leakage measuring instrument is not used, the protective cover 2 and the protective cover 1 are closed, so that the insertion blocks 201 and the insertion grooves are cooperatively connected, the sliders 205 slide leftwards to drive the top block 203 to jack the fixture blocks 203, so that the fixture blocks 203 are clamped inside the clamping grooves, thereby fixing the protective cover 2, when the capacitive differential pressure leakage measuring instrument is used, the protective can be released, and the protective by sliding the slider 205 rightwards can be sealed and protected, thereby preventing the measuring joint 3 from contacting with the outside.

Referring to fig. 3, the measuring adapter 3 is connected to the differential pressure measuring instrument body 4 through the connecting pipe 301, the top of the connecting pipe 301 is provided with the connector 302, the rubber pipe 303 is sleeved on the outer side of the connector 302, the fixing ring 304 is sleeved on the outer side of the rubber pipe 303, when the electronic device is measured, the test product and the standard product are measured simultaneously through the measuring adapter 3, one measuring adapter 3 is inserted into the test product, the other measuring adapter 3 is inserted into the standard product, the internal air pressure of the product is transmitted into the connector 302 through the rubber pipe 303, and then is communicated into the connecting pipe 301 through the connector 302, and finally the measurement is performed through the differential pressure measuring instrument body, a measurement result is obtained through the value of the leakage of the differential pressure, the rubber pipe 303 is fixed through the fixing ring 304 in the measurement process, the air tightness of the rubber pipe 303 during the measurement is ensured, the measurement precision is increased, and the rubber pipe 303 can be rapidly replaced through the detachment of the fixing ring 304, thereby improving the convenience of the leakage of the capacitive differential pressure measuring instrument.

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. Capacitanc differential pressure leakage measuring apparatu, including protective housing (1) and visor (2), its characterized in that: a protective cover (2) is arranged on the front surface of the protective shell (1), two groups of measuring joints (3) are arranged at the top of the protective shell (1), and a differential pressure measuring instrument body (4) is arranged in the protective shell (1);

the left and right sides at the back of protective housing (1) all is provided with anticollision piece (101), movable chamber (102) have been seted up to the inboard of anticollision piece (101) and the inside that is located protective housing (1), the inside in activity chamber (102) is provided with spring buffer (103), spring buffer (103) are connected with anticollision piece (101) through arc elastic sheet (104), movable groove (105) have all been seted up in movable chamber (102) and the corresponding position department in arc elastic sheet (104) both ends.

2. The capacitive differential pressure leak gauge according to claim 1, wherein: the top of the protective shell (1) is provided with a display screen (106) and an operation button (107) respectively.

3. The capacitive differential pressure leak gauge according to claim 1, wherein: four corners at protective housing (1) top all are provided with hemisphere protection pad (108), the left and right sides of protective housing (1) all is provided with anticollision strip (109), anticollision piece (101), hemisphere protection pad (108) and anticollision strip (109) are the rubber materials preparation and form.

4. The capacitive differential pressure leak gauge according to claim 1, wherein: the left and right sides of inside of visor (2) all is provided with grafting piece (201), the inside of grafting piece (201) is provided with kicking block (202), the top and the bottom of kicking block (202) all are provided with fixture block (203), and are two sets of the fixture block (203) outside is provided with spring (204), the both ends of spring (204) respectively with grafting piece (201) and fixture block (203) fixed connection, the left and right sides of visor (2) all is provided with slider (205).

5. The capacitive differential pressure leak gauge according to claim 4, wherein: the sliding block (205) and the clamping block (203) are designed to be of an integral structure, a sliding groove is formed in the position, corresponding to the sliding block (205), of the protective cover (2), an insertion groove is formed in the position, corresponding to the insertion block (201), of the protective shell (1), and a clamping groove is formed in the position, corresponding to the clamping block (203), of the insertion groove.

6. The capacitive differential pressure leak gauge according to claim 1, wherein: measuring joint (3) are connected with differential pressure measuring instrument body (4) through connecting pipe (301), the top of connecting pipe (301) is provided with connector (302), the outside cover of connector (302) is equipped with rubber tube (303), the outside cover of rubber tube (303) is equipped with solid fixed ring (304).