CN213337304U - Colorimetric tube cutting sleeve device - Google Patents

Abstract

The utility model relates to a colour comparison tube cutting ferrule device, connect the fixed sleeving of looks spiro union including one end and gas circuit, sealed slide bar is worn to be equipped with by the inside slip of the other end of fixed sleeving, the inside of sealed slide bar is equipped with the air vent that link up along its axial, the air vent is kept away from the one end that the gas circuit connects and is used for with the cooperation of pegging graft of colour comparison tube, and the air vent is close to the one end that the gas circuit connects and is linked together with the inside gas circuit of gas circuit joint via the gas circuit sealed tube, the coaxial cover in outside of gas circuit sealed tube is equipped with expanding spring, expanding spring's both ends. When the colorimetric device is used, the two ends of the colorimetric tube are connected with the colorimetric tube clamping sleeve device, the sealing slide rod and the air path connector are abutted by the telescopic spring, the colorimetric tube clamping sleeve device is not only applicable to colorimetric tubes with various different length specifications, but also has good use flexibility, the elastic force of the telescopic spring pushes the sealing slide rod to be tightly connected with the colorimetric tube, and the connection reliability is improved.

Description

Colorimetric tube cutting sleeve device

The technical field is as follows:

the utility model relates to a colour comparison tube cutting ferrule device.

Background art:

as is well known, the colorimetric method is a relatively simple, low-cost and low-gas-consumption quantitative detection method, and can be used for detecting the decomposition product of the SF6 gas. Among the prior art, when adopting the colorimetry to be used for detecting gaseous decomposition product of SF6, the both ends of colour comparison tube are connected through hose and gas circuit connector, and this kind of connection structure is insecure, appears droing easily, when changing the colour comparison tube of different length, need tailor the hose moreover, and it is comparatively inconvenient to use, and the flexibility is relatively poor.

The utility model has the following contents:

the utility model discloses make the improvement to the problem that above-mentioned prior art exists, promptly the utility model aims to solve the technical problem that a colour comparison tube cutting ferrule device is provided, not only firm in connection, the colour comparison tube of adaptable different length moreover.

In order to realize the purpose, the utility model discloses a technical scheme is: the utility model provides a colour comparison tube cutting ferrule device, includes the fixed sleeving of one end and gas circuit joint looks spiro union, sealed slide bar is worn to be equipped with by the inside slip of the other end of fixed sleeving, the inside of sealed slide bar is equipped with the air vent that link up along the axial, the one end that the gas circuit joint was kept away from to the air vent is used for with the cooperation of pegging graft of colour comparison tube, and the one end that the air vent is close to the gas circuit joint is linked together with the inside gas circuit of gas circuit joint via the gas circuit sealed tube, the coaxial cover in outside of gas circuit sealed tube is equipped with expanding spring, expanding spring.

Furthermore, one end of the sealing slide rod, which extends into the inside of the fixed sleeve, is screwed with a sealing nut, and one end of the sealing nut, which is close to the air path joint, is abutted against the expansion spring.

Furthermore, a cylindrical sealing ring is arranged between one end, screwed into the sealing nut, of the sealing slide rod and the sealing nut.

Furthermore, one end of the air path joint close to the fixed sleeve is provided with a threaded connecting part, and the middle part of the threaded connecting part is provided with a through hole which is communicated with an air path inside the air path joint and is beneficial to the penetration of an air path sealing pipe; and an inner thread used for being in threaded connection with the threaded connection part is arranged on the inner wall of one end, close to the gas circuit connector, of the fixed sleeve.

Further, an air path gasket sleeved on the outer side of the air path sealing pipe is arranged in the through hole, and the expansion spring is abutted to the air path gasket at one end close to the air path joint.

Furthermore, a first O-shaped sealing ring is arranged between the air path gasket and the air path joint.

Further, the air vent includes first grafting hole portion, connecting hole and the second grafting hole portion that sets gradually, the diameter of first grafting hole portion and second grafting hole portion all is greater than the diameter of connecting hole, and first grafting hole portion is used for pegging graft the cooperation with the gas circuit sealed tube, and second grafting hole portion is used for pegging graft the cooperation with the colour comparison tube.

Furthermore, the second plug hole portion is in a step shape with one end close to the connecting hole and the other end far away from the connecting hole, and the end, far away from the connecting hole, of the second plug hole portion is provided with a second O-shaped sealing ring.

Furthermore, the peripheral side face of one end of the sealing slide rod, which extends out of the fixed sleeve, is provided with an annular limiting flange.

Furthermore, the periphery side face of one end, far away from the gas circuit connector, of the fixed sleeve is provided with a knurl.

Compared with the prior art, the utility model discloses following effect has: the utility model has the advantages of simple and reasonable design, it has expanding spring to utilize the butt between sealed slide bar and the gas circuit joint, not only applicable in the colour comparison tube of multiple different length specifications, uses the flexibility good, and expanding spring's elasticity promotes sealed slide bar and colour comparison tube zonulae occludens together moreover, improves the reliability of connecting.

Description of the drawings:

fig. 1 is a schematic front view of a cross-sectional structure according to an embodiment of the present invention.

Fig. 2 is a schematic view of a usage status of the embodiment of the present invention.

The specific implementation mode is as follows:

the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so 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.

As shown in fig. 1-2, the utility model relates to a colour comparison tube cutting ferrule device, including the fixed sleeving 2 of one end and 1 looks spiro union of gas circuit joint, sealed slide bar 3 is worn to be equipped with in the inside slip of the other end of fixed sleeving 2, the inside of sealed slide bar 3 is equipped with the air vent that link up along its axial, the one end that gas circuit joint 1 was kept away from to the air vent is used for pegging graft the cooperation with colour comparison tube 4, and the one end that the air vent is close to gas circuit joint 1 is linked together with the inside gas circuit 101 of gas circuit joint 1 via gas circuit sealed tube 5, the coaxial cover in outside of gas circuit sealed tube 5 is equipped with expanding spring 6, expanding spring 6's both ends respectively with sealed slide bar. During the use, all connect this colour comparison tube cutting ferrule device at the both ends of colour comparison tube 4, utilize the butt between sealed slide bar 3 and the gas circuit joint 1 to have expanding spring 6, not only applicable in the colour comparison tube of multiple different length specifications, use the flexibility good, expanding spring's elasticity promotes sealed slide bar and colour comparison tube zonulae occludens together moreover, improves the reliability of connecting.

In this embodiment, a sealing nut 7 is screwed to one end of the sealing slide rod 3 extending into the fixing sleeve 2, and one end of the sealing nut 7 close to the air path joint 1 abuts against the expansion spring 6.

In this embodiment, in order to carry out rice flour to the one end that the air vent is close to sealing nut individual to improve the gas tightness, be provided with cylindricality sealing washer 8 between one end of sealed slide bar 3 screw in sealing nut 7 and sealing nut 7.

In this embodiment, one end of the air path joint 1 close to the fixed sleeve 2 is provided with a threaded connection part 9, and the middle part of the threaded connection part 9 is provided with a through hole which is communicated with an air path 101 inside the air path joint 1 and is beneficial to the penetration of an air path sealing pipe 5; and an inner thread used for being in threaded connection with the threaded connection part 9 is arranged on the inner wall of one end, close to the gas circuit connector 1, of the fixed sleeve 2.

In this embodiment, an air path gasket 10 sleeved outside the air path sealing pipe 5 is arranged in the through hole, and the air path gasket 10 is abutted at one end of the expansion spring 6 close to the air path joint 1.

In this embodiment, in order to improve the air tightness between the through hole and the air path inside the air path joint, a first O-ring 11 is disposed between the air path gasket 10 and the air path joint 1.

In this embodiment, the vent hole includes a first plug hole portion 12, a connection hole 13, and a second plug hole portion 14 that communicate in order, the diameters of the first plug hole portion 12 and the second plug hole portion 14 are all greater than the diameter of the connection hole 13, the first plug hole portion 12 is used for plugging and matching with the gas path sealed tube 5, and the second plug hole portion 14 is used for plugging and matching with the colorimetric tube 4. When the colorimetric device is used, the colorimetric tube is inserted into the second insertion hole part, the air path sealing tube is inserted into the first hole part, and the connecting hole is used for communicating the colorimetric tube with the air path sealing tube.

In this embodiment, the second inserting hole portion 14 is in a step shape having a small diameter at one end close to the connecting hole and a large diameter at one end far away from the connecting hole, and a second O-ring 15 is disposed at one end of the second inserting hole portion 14 far away from the connecting hole 13, and is used to improve the sealing property between the cuvette and the second inserting hole portion.

In this embodiment, an annular limiting flange 16 is disposed on a peripheral side surface of one end of the sealing slide rod 3 extending out of the fixing sleeve 3, so as to limit the movement of the sealing slide rod towards the fixing sleeve.

In this embodiment, the peripheral side of one end of the fixed sleeve 2, which is far away from the gas circuit connector 1, is provided with a knurl so as to facilitate the manual rotation of the fixed sleeve.

It should be noted that the gas circuit connector is an existing mature product, and the internal structure thereof is not described herein in more detail, and is mainly fixed by screwing the threaded connection part with the cuvette chuck device.

When the colorimetric tube cutting sleeve device is used in the embodiment shown in fig. 2, two ends of a colorimetric tube 4 are respectively provided with the colorimetric tube cutting sleeve device, the colorimetric tube 4 is inserted into a second insertion hole portion 14 on a sealing slide bar 3, the colorimetric tube 4 pushes the sealing slide bar 3 to move towards an air passage joint 1, the sealing slide bar 3 extrudes a telescopic spring 6 through a sealing nut 7, and the elastic force generated by the compression of the telescopic spring 6 can push the sealing slide bar 3 to be in close contact with the colorimetric tube 4, so that the colorimetric tube is firmly connected with the colorimetric tube cutting sleeve device; meanwhile, the telescopic spring is abutted between the sealing slide rod and the air path connector, and the telescopic spring can be used for stretching, so that the color comparison tube is suitable for various color comparison tubes with different length specifications, and the use flexibility is good.

The utility model discloses if disclose or related to mutual fixed connection's spare part or structure, then, except that other the note, fixed connection can understand: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).

In addition, the terms used in any aspect of the present disclosure as described above to indicate positional relationships or shapes include similar, analogous, or approximate states or shapes unless otherwise stated.

The utility model provides an arbitrary part both can be assembled by a plurality of solitary component parts and form, also can be the solitary part that the integrated into one piece technology was made.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.

Claims (10)

1. The utility model provides a colour comparison tube cutting ferrule device which characterized in that: including the fixed sleeving of one end and gas circuit joint looks spiro union, sealed slide bar is worn to be equipped with by the inside slip of the other end of fixed sleeving, the inside of sealed slide bar is equipped with the air vent that link up along the axial, the one end that the air channel was kept away from to the air vent is used for pegging graft the cooperation with the colour comparison tube, and the one end that the air vent is close to the gas circuit joint is linked together with the inside gas circuit of gas circuit joint via the gas circuit sealed tube, the coaxial cover in outside of gas circuit sealed tube is equipped with expanding spring, expanding spring's both ends respectively with sealed slide.

2. The cuvette cutting ferrule device according to claim 1, wherein: the end, stretching into the fixed sleeve, of the sealing slide rod is connected with a sealing nut in a threaded mode, and one end, close to the air path joint, of the sealing nut is abutted to the telescopic spring.

3. The cuvette cutting ferrule device according to claim 2, wherein: and a cylindrical sealing ring is arranged between one end of the sealing slide rod screwed into the sealing nut and the sealing nut.

4. The cuvette cutting ferrule device according to claim 1, wherein: one end of the gas path joint close to the fixed sleeve is provided with a threaded connecting part, and the middle part of the threaded connecting part is provided with a through hole which is communicated with a gas path inside the gas path joint and is beneficial to the penetration of a gas path sealing pipe; and an inner thread used for being in threaded connection with the threaded connection part is arranged on the inner wall of one end, close to the gas circuit connector, of the fixed sleeve.

5. The cuvette cutting ferrule device according to claim 4, wherein: and an air path gasket sleeved outside the air path sealing pipe is arranged in the through hole, and the expansion spring is abutted against the air path gasket at one end close to the air path joint.

6. The cuvette cutting ferrule device according to claim 5, wherein: and a first O-shaped sealing ring is arranged between the air path gasket and the air path joint.

7. The cuvette cutting ferrule device according to claim 1, wherein: the air vent is including the first grafting hole portion, connecting hole and the second grafting hole portion that set gradually, the diameter of first grafting hole portion and second grafting hole portion all is greater than the diameter of connecting hole, and first grafting hole portion is used for pegging graft the cooperation with the gas circuit sealed tube, and second grafting hole portion is used for pegging graft the cooperation with the colour comparison tube.

8. The cuvette cutting ferrule device according to claim 7, wherein: the second plug hole portion is in a ladder shape with one end close to the connecting hole and the other end far away from the connecting hole, the diameter of the second plug hole portion is small, and a second O-shaped sealing ring is arranged at the end, far away from the connecting hole, of the second plug hole portion.

9. The cuvette cutting ferrule device according to claim 1, wherein: and an annular limiting flange is arranged on the peripheral side surface of one end of the sealing slide rod, which extends out of the fixing sleeve.

10. The cuvette cutting ferrule device according to claim 1, wherein: and a knurling is arranged on the peripheral side surface of one end, far away from the gas circuit connector, of the fixed sleeve.

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