CN213512290U

CN213512290U - Calibration valve suitable for calibration of sizes of different sensors and sizes of density relays

Info

Publication number: CN213512290U
Application number: CN202022593390.1U
Authority: CN
Inventors: 闫良伟
Original assignee: Jiangsu Shiqin Power Engineering Technology Co ltd
Current assignee: Jiangsu Shiqin Power Engineering Technology Co ltd
Priority date: 2020-11-11
Filing date: 2020-11-11
Publication date: 2021-06-22
Anticipated expiration: 2030-11-11

Abstract

The utility model discloses a check valve suitable for checking sizes of different sensors and density relays, which comprises a valve body, wherein an inflation inlet is fixedly arranged on the valve body, a check port is fixedly arranged at one end of the valve body, an exhaust outlet is fixedly arranged on the valve body, two fixed sleeves are symmetrically and fixedly arranged at two far ends of the valve body, a telescopic column is movably connected on each fixed sleeve, one end of each telescopic column, which is far from the corresponding fixed sleeve, is provided with a connecting seat by screw thread, and a corrugated pipe is fixedly arranged between the check port and the corresponding telescopic column. Greatly increasing the application range.

Description

Calibration valve suitable for calibration of sizes of different sensors and sizes of density relays

Technical Field

The utility model relates to a check valve, in particular to check valve that is suitable for different sensor sizes, density relay size check-up belongs to check valve technical field.

Background

The sensor is a detection device which can sense the measured information and convert the sensed information into an electric signal or other information output in a required form according to a certain rule so as to meet the requirements of transmission, processing, storage, display, recording and control of the information, the density relay is an important protection and control element in a power system, if the breaker fails, great economic loss is caused, in order to ensure the operation reliability of the breaker, various indexes of the breaker, particularly SF6 gas, must be monitored frequently, the regulation of relevant standards must be reached, and the SF6 breaker is required to keep a good working state for a long time, and in order to ensure the sensitivity of the sensor and the density relay, a check valve is required to be installed in the sensor for detecting the sensitivity of the sensor and the density relay.

Traditional sensor, density relay check-up's check-up valve in the use of reality, its length can't be adjusted, if sensor, density relay's size is different, its inside installation space that is used for the check-up valve installation also will change, and the check-up valve will receive the restriction of installation space size when the installation, has reduced its application scope greatly, to this, needs design a check-up valve that is suitable for different sensor sizes, density relay size check-up.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a be suitable for check-up valve of different sensor sizes, density relay size check-up to solve its length that provides in the above-mentioned background art and can't adjust, if sensor, density relay's size is different, its inside installation space who is used for the check-up valve installation will also change, and the check-up valve will receive the restriction of installation space size when the installation, has reduced its application scope's problem.

In order to achieve the above object, the utility model provides a following technical scheme: a check valve suitable for checking the sizes of different sensors and density relays comprises a valve body, the valve body is fixedly provided with an inflation inlet, one end of the valve body is fixedly provided with a check port, one end of the valve body, which is far away from the check port, is fixedly provided with an exhaust port, two far-away ends of the valve body are symmetrically and fixedly provided with two fixed sleeves, the calibration port and the exhaust port are both positioned in the fixed sleeves which are arranged in a matching way, the two fixed sleeves are both movably connected with a telescopic column, one end of each telescopic column, which is far away from the corresponding fixed sleeve, is provided with a connecting seat in a threaded way, check up the mouth and correspond the common fixed mounting and have a bellows between the flexible post that sets up, common fixed mounting has a bellows between gas vent and the flexible post that corresponds the setting, and two the bellows all is located the fixed sleeve that the phase-match set up.

Preferably, two the equal fixed mounting in one end of flexible post has a butt joint pipe, and two the equal fixed cup joint of one end that the valve body was kept away from to the bellows is on the outer wall of butt joint pipe, two the one end that the corresponding butt joint pipe that sets up was kept away from to flexible post has all dug a thread groove.

Preferably, two all be equipped with an external thread mouth on the outer wall of connecting seat, and two the external thread mouth all with the thread groove threaded connection that the phase-match set up, two all be equipped with a butt joint air cock on the connecting seat.

Preferably, two all dig an exhaust passage in the flexible post, and two the exhaust passage all communicates with the thread groove that the phase-match set up, two the exhaust passage all communicates each other with the butt joint air cock that the phase-match set up.

Preferably, two the equal fixed mounting of tank bottom of thread groove has a rubber packing ring, two the rubber packing ring all with the connecting seat in close contact with that corresponds the setting.

Preferably, two all be equipped with one in the fixed sleeve and accomodate the chamber, two fixed sleeve's one end has all been dug a circular opening, and two circular opening all communicates with the chamber of accomodating that the phase-match set up, two the equal fixed mounting of one end of flexible post has a spacing plectane, two the equal movable mounting of spacing plectane is in the intracavity of accomodating that the phase-match set up, and two the diameter of spacing plectane is greater than the circular open-ended inner bore that the phase-match set up.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model relates to a be suitable for check-up valve of different sensor sizes, density relay size check-up has the wide characteristics of application scope, in specific use, compares with the check-up valve of traditional sensor, density relay check-up: this check valve is provided with the fixed sleeve, flexible post and bellows, in the use, can stretch out and draw back the regulation to flexible post, be convenient for change the whole length of fixed sleeve and flexible post, ensure that the check valve can install in the finite space, can also guarantee its gas tightness through built-in bellows, check valve after the length adjustment can be applicable to not unidimensional sensor or density relay, prevent effectively that sensor or density relay size from causing the restriction to its installation, greatly increased its application scope.

Drawings

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

fig. 2 is a front view of the valve body of the present invention;

FIG. 3 is a schematic view of the connection between the fixing sleeve and the telescopic column of the present invention;

fig. 4 is a cross-sectional view of the telescopic column of the present invention;

FIG. 5 is a schematic view of the connecting seat structure of the present invention;

fig. 6 is a cross-sectional view of the fixing sleeve of the present invention.

In the figure: 1. a valve body; 2. fixing the sleeve; 21. a receiving cavity; 22. a circular opening; 3. a telescopic column; 31. an exhaust passage; 32. butt-joint pipes; 33. a thread groove; 34. a rubber gasket; 35. a limiting circular plate; 4. a connecting seat; 41. an external thread opening; 42. butting an air faucet; 5. an inflation inlet; 6. checking the port; 7. an exhaust port; 8. a bellows.

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.

Referring to fig. 1-6, the present invention provides a technical solution: the check valve suitable for checking sizes of different sensors and sizes of density relays comprises a valve body 1, an inflation inlet 5 is fixedly installed on the valve body 1, a check port 6 is fixedly installed at one end of the valve body 1, an exhaust port 7 is fixedly installed at one end, far away from the check port 6, of the valve body 1, two fixed sleeves 2 are symmetrically and fixedly installed at two far away ends of the valve body 1, the check port 6 and the exhaust port 7 are both located in the fixed sleeves 2 which are arranged in a matched mode, a telescopic column 3 is movably connected onto each of the two fixed sleeves 2, a connecting seat 4 is installed at one end, far away from the corresponding fixed sleeve 2, of each telescopic column 3 in a threaded mode, a corrugated pipe 8 is fixedly installed between the check port 6 and the corresponding telescopic column 3, a corrugated pipe 8 is fixedly installed between the exhaust port 7 and the corresponding telescopic column 3, and the two corrugated pipes 8 are both located in the fixed sleeves 2 which are arranged, this check valve can stretch out and draw back and adjust in the use, is convenient for change its whole length, ensures that the check valve can install in finite space, can also guarantee its gas tightness through built-in bellows 8, is applicable to not unidimensional sensor or density relay, prevents effectively that sensor or density relay size from causing the restriction to its installation, greatly increased its application scope.

The outer walls of the two connecting seats 4 are respectively provided with an external thread opening 41, the two external thread openings 41 are respectively in threaded connection with the thread grooves 33 which are arranged in a matched manner, the two connecting seats 4 are respectively provided with a butt joint air cock 42, the connecting seats 4 are conveniently in threaded connection with one ends of the telescopic columns 3 through the threaded connection between the external thread openings 41 and the thread grooves 33, the convenience of replacing the connecting seats 4 is improved, the two fixing sleeves 2 are respectively provided with an accommodating cavity 21, one ends of the two fixing sleeves 2 are respectively provided with a circular opening 22, the two circular openings 22 are respectively communicated with the accommodating cavities 21 which are arranged in a matched manner, one ends of the two telescopic columns 3 are respectively fixedly provided with a limiting circular plate 35, the two limiting circular plates 35 are respectively movably arranged in the accommodating cavities 21 which are arranged in a matched manner, and the diameters of the two limiting circular plates 35 are larger than the inner diameters of the circular openings 22, the telescopic column 3 can be limited through a limiting circular plate 35, the telescopic column 3 is ensured not to be disconnected from the fixed sleeve 2, an exhaust passage 31 is dug in each telescopic column 3, the two exhaust passages 31 are communicated with thread grooves 33 which are arranged in a matched manner, the two exhaust passages 31 are communicated with butt joint air nozzles 42 which are arranged in a matched manner, one end of each telescopic column 3 is fixedly provided with a butt joint pipe 32, one end of each corrugated pipe 8 far away from the valve body 1 is fixedly sleeved on the outer wall of the butt joint pipe 32, one end of each telescopic column 3 far away from the corresponding butt joint pipe 32 is dug with a thread groove 33, when the telescopic column 3 is stretched to change the length, the corrugated pipe 8 is stretched or extruded, the sealing performance between the check port 6 and the exhaust port 7 and the telescopic column 3 which is correspondingly connected can be ensured, the gas leakage probability is reduced, a rubber gasket 34 is fixedly arranged at the bottom of each thread groove 33, two rubber packing rings 34 all with the connecting seat 4 in close contact with that corresponds the setting, can dock connecting seat 4 and thread groove 33 butt joint gap through rubber packing ring 34 and seal, effectively improve its sealed effect.

Specifically, when the utility model is used, firstly, gas is filled into the valve body 1 through the charging port 5, the gas enters the calibrator through the calibration port 6 for calibration, the residual gas is discharged through the exhaust port 7, the valve body 1 is installed inside a sensor or a density relay in the use process, the space volume for installing the valve body 1 inside the valve body is different due to the different sizes of the sensor or the density relay, if the internal space is increased, the telescopic column 3 is pulled to one side far away from the valve body 1, the whole length of the fixed sleeve 2 and the telescopic column 3 can be increased, the butt joint air nozzle 42 chiseled on the connecting seat 4 can be ensured to be in butt joint with the butt joint port, if the internal space is reduced, the telescopic column 3 is pushed to one side of the valve body 1 and is accommodated into the accommodating cavity 21, at the moment, the whole length of the fixed sleeve 2 and the telescopic column 3 is reduced, the calibration valve can be ensured to be, at the tensile in-process of flexible post 3, bellows 8 is stretched in fixed sleeve 2, can guarantee check-up mouth 6, the leakproofness between the gas vent 7 and the flexible post 3 that corresponds the setting, effectively prevent the gas leakage phenomenon from appearing in the check-up process, and bellows 8 is by the cladding of fixed sleeve 2, can protect it, reduce the probability that bellows 8 damaged, this check-up valve is in the use, can stretch out and draw back the regulation, be convenient for change its whole length, ensure that the check-up valve can install in the finite space, be applicable to not unidimensional sensor or density relay, effectively prevent that sensor or density relay size from causing the restriction to its installation, greatly increased its application scope.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", 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 simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

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 check valve suitable for checking sizes of different sensors and sizes of density relays comprises a valve body (1) and is characterized in that an inflation inlet (5) is fixedly mounted on the valve body (1), a check port (6) is fixedly mounted at one end of the valve body (1), an exhaust port (7) is fixedly mounted at one end of the valve body (1) far away from the check port (6), two fixing sleeves (2) are symmetrically and fixedly mounted at two ends of the valve body (1) far away from each other, the check port (6) and the exhaust port (7) are both located in the fixing sleeves (2) which are arranged in a matched mode, two telescopic columns (3) are movably connected to the fixing sleeves (2), one ends of the telescopic columns (3) far away from the fixing sleeves (2) which are arranged correspondingly are both provided with a connecting seat (4) in a threaded mode, and a corrugated pipe (8) is fixedly mounted between the check port (6) and the corresponding telescopic columns (3) which are arranged correspondingly, the exhaust port (7) and the telescopic column (3) which is correspondingly arranged are fixedly provided with a corrugated pipe (8) together, and the corrugated pipe (8) is arranged in the fixed sleeve (2) which is matched with the corrugated pipe.

2. A calibration valve suitable for calibration of different sensor sizes and density relay sizes according to claim 1, wherein: two the equal fixed mounting in one end of flexible post (3) has one to connect pipe (32), and two the one end that valve body (1) were kept away from in bellows (8) is all fixed cup joint on the outer wall of connecting pipe (32), two the one end that corresponds butt joint pipe (32) of setting is kept away from in flexible post (3) has all dug a thread groove (33).

3. A calibration valve suitable for calibration of different sensor sizes and density relay sizes according to claim 1, wherein: two all be equipped with an external screw thread mouth (41) on the outer wall of connecting seat (4), and two external screw thread mouth (41) all with thread groove (33) threaded connection that the phase-match set up, two all be equipped with one on connecting seat (4) and dock air cock (42).

4. A calibration valve suitable for calibration of different sensor sizes and density relay sizes according to claim 1, wherein: two all cut in flexible post (3) and have an exhaust passage (31), and two exhaust passage (31) all communicate with thread groove (33) that the phase-match set up, two exhaust passage (31) all communicate with butt joint air cock (42) that the phase-match set up each other.

5. A calibration valve suitable for calibration of different sensor sizes and density relay sizes according to claim 2, wherein: two the equal fixed mounting in tank bottom of screw thread groove (33) has a rubber packing ring (34), two rubber packing ring (34) all with corresponding connecting seat (4) the in close contact with that sets up.

6. A calibration valve suitable for calibration of different sensor sizes and density relay sizes according to claim 1, wherein: two all be equipped with one in fixed sleeve (2) and accomodate chamber (21), two the one end of fixed sleeve (2) is all dug and is had a circular opening (22), and two circular opening (22) all communicates with the chamber (21) of accomodating that the phase-match set up, two the equal fixed mounting in one end of flexible post (3) has a spacing plectane (35), two spacing plectane (35) equal movable mounting is in the chamber (21) of accomodating that the phase-match set up, and two the diameter of spacing plectane (35) is greater than the inner bore of the circular opening (22) that the phase-match set up.