CN212646006U

CN212646006U - Adjustable suction gun

Info

Publication number: CN212646006U
Application number: CN202021414196.6U
Authority: CN
Inventors: 汪浩; 冉振为; 洪荣丰; 郭炳汉; 曹大阳; 杨效
Original assignee: Shenzhen Walsheng Intelligent Control Technology Co ltd
Current assignee: Shenzhen Walsheng Intelligent Control Technology Co ltd
Priority date: 2020-07-16
Filing date: 2020-07-16
Publication date: 2021-03-02
Anticipated expiration: 2030-07-16

Abstract

The utility model relates to the technical field of helium mass spectrometer leak detectors, in particular to an adjustable suction gun, which comprises a suction gun shell and a gas flow regulating component; the suction gun shell is of a pistol type structure conforming to ergonomics, a handle is arranged at the bottom of the suction gun shell, an air suction pipe is arranged at one end, away from the handle, of the suction gun shell, an air inlet of the air suction pipe is communicated with a sampling pipe, one end, away from the air suction pipe, of the sampling pipe is communicated with an inlet of a filter chamber, a fixed exhaust disc is arranged on one side, close to the inlet, of the interior of the filter chamber, and a gas adjusting area is arranged on the fixed exhaust; and an adjusting disc is arranged on one side of the fixed exhaust disc, which is far away from the air inlet of the filter chamber. The utility model provides a suction gun shell adopts pistol formula handle, more accords with human engineering, and is more stable indefatigability during the operation, can have multiple angle to grip, can adjust the gas flow stream of appearance gas through rotatory rifle body rear portion control knob, obtains different hourglass rate values, simple structure, convenient operation.

Description

Adjustable suction gun

Technical Field

The utility model relates to a helium mass spectrometer leak detector technical field specifically is a suction gun with adjustable.

Background

The helium mass spectrometer leak detector is a term of gas industry, helium or hydrogen is used as leak-indicating gas, a mass spectrometer for leak detection is used for detecting the helium by using a gas analyzer, the background noise of the helium is low, and the molecular weight and the viscosity coefficient are small, so that the helium can easily pass through a leak hole and can easily diffuse; in addition, since helium is an inert gas and does not corrode equipment, helium is often used as a leak gas. The gun suction device of the existing helium mass spectrometer leak detector adopts a straight shank type, does not conform to ergonomics, is unstable and easy to fatigue during operation, has a fixed detection leak rate, cannot adjust the gas flow at the gun suction port, obtains different leak rate values, and cannot meet the requirement of detecting diversity. Therefore, technical improvements thereof are required.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a suction gun with adjustable 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: an adjustable suction gun comprises a suction gun shell and a gas flow regulating assembly; the suction gun shell is of a pistol type structure conforming to ergonomics, a handle is arranged at the bottom of the suction gun shell, an air suction pipe is arranged at one end, away from the handle, of the suction gun shell, an air inlet of the air suction pipe is communicated with a sampling pipe, one end, away from the air suction pipe, of the sampling pipe is communicated with an inlet of a filter chamber, a fixed exhaust disc is arranged on one side, close to the inlet, of the interior of the filter chamber, and a gas adjusting area is arranged on the fixed exhaust; an adjusting disc is arranged on one side of the fixed exhaust disc, which is far away from the air inlet of the filter chamber, and a plurality of filter meshes are arranged on one side of the adjusting disc; the adjusting disc is connected with the gas adjusting assembly; the gas regulating assembly comprises a control knob arranged at one end of the suction gun shell; the bottom of the filter chamber is communicated with an exhaust pipe.

Preferably, one end of the control knob, which is close to the suction gun shell, is fixedly connected with an adjusting control rod, one end of the adjusting control rod, which is far away from the control knob, is sleeved with an adjusting gear, and the adjusting gear is connected with the center of the adjusting disc.

Preferably, the center of the adjusting disc is provided with an adjusting hole, the adjusting gear is arranged inside the adjusting hole, and a plurality of adjusting racks meshed with the adjusting gear are arranged on the circumferential inner wall of the adjusting hole in an array mode.

Preferably, the number of the gas regulating areas is four, the area sizes of the four gas regulating areas are consistent, a plurality of large air outlets, middle air outlets and small air outlets are sequentially arranged on three gas regulating areas, the other gas regulating area is of a closed structure, the aperture sizes of the large air outlets, the middle air outlets and the small air outlets are sequentially decreased progressively, and the number and the arrangement positions of the large air outlets, the middle air outlets and the small air outlets are consistent.

Preferably, the adjusting disc is provided with an exhaust area which is consistent with the shape and the area size of the gas adjusting area, the exhaust area is provided with vent holes which are consistent with the number and the arrangement positions of the large vent holes, and the aperture size of the vent holes is larger than that of the large vent holes.

Preferably, one end of the vent hole close to the fixed exhaust disc is communicated with the air guide pipe, and the fixed exhaust disc is provided with an annular guide rail consistent with the rotation track of the air guide pipe.

Preferably, the control knob is provided with gear scale marks corresponding to four rotating circumferences of the exhaust area.

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

the utility model provides a suction gun shell adopts pistol formula handle, more accords with human engineering, and is more stable indefatigability during the operation, can have multiple angle to grip, and the detection leak rate of ordinary suction gun is the fixed value, and adjustable suction gun is through rotatory rifle body rear portion control knob, and the gas flow stream of adjustment appearance gas obtains different leak rate values, simple structure, convenient operation, and practicality and flexibility are higher.

Drawings

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

fig. 2 is a side view of the present invention;

fig. 3 is a schematic structural diagram of the present invention;

FIG. 4 is a schematic view of the gas flow regulating assembly and the filtering chamber of the present invention;

fig. 5 is a schematic structural diagram of an adjusting disc according to the present invention;

fig. 6 is a schematic structural diagram of the fixed exhaust disc of the present invention;

fig. 7 is a side view of the control knob of the present invention.

In the figure: 1. a suction gun housing; 2. a handle; 3. an air intake duct; 4. a sampling tube; 5. a filtering chamber; 6. fixing an exhaust disc; 7. a gas conditioning zone; 8. adjusting the disc; 9. a filter mesh sheet; 10. a control knob; 11. an exhaust pipe; 12. adjusting the control lever; 13. an adjusting gear; 14. an adjustment hole; 15. adjusting the rack; 16. a large air outlet hole; 17. a middle air outlet hole; 18. a small air outlet; 19. an exhaust area; 20. a vent hole; 21. an air guide pipe; 22. and a ring-shaped guide rail.

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.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", 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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-7, the present invention provides a technical solution: an adjustable suction gun comprises a suction gun shell 1 and a gas flow regulating assembly; the suction gun shell 1 is in a pistol type structure conforming to ergonomics, a handle 2 is arranged at the bottom of the suction gun shell 1, an air suction pipe 3 is arranged at one end, away from the handle 2, of the suction gun shell 1, an air inlet of the air suction pipe 3 is communicated with a sampling pipe 4, one end, away from the air suction pipe 3, of the sampling pipe 4 is communicated with an inlet of a filter chamber 5, a fixed exhaust disc 6 is arranged on one side, close to the inlet, inside the filter chamber 5, and a gas adjusting area 7 is arranged on the fixed exhaust disc 6; an adjusting disc 8 is arranged on one side of the fixed exhaust disc 6 far away from the air inlet of the filter chamber 5, and a plurality of filter meshes 9 are arranged on one side of the adjusting disc 8; the adjusting disc 8 is connected with the gas adjusting component; the gas regulating component comprises a control knob 10 arranged at one end of the suction gun shell 1; the bottom of the filter chamber 5 is communicated with an exhaust pipe 11.

Furthermore, one end of the control knob 10 close to the gun shell 1 is fixedly connected with an adjusting control rod 12, one end of the adjusting control rod 12 far away from the control knob 10 is sleeved with an adjusting gear 13, and the adjusting gear 13 is connected with the center of the adjusting disc 8.

Furthermore, an adjusting hole 14 is formed in the center of the adjusting disc 8, the adjusting gear 13 is arranged inside the adjusting hole 14, and a plurality of adjusting racks 15 meshed with the adjusting gear 13 are arranged on the circumferential inner wall of the adjusting hole 14 in an array mode.

Further, the number of the gas regulating regions 7 is four, the area sizes of the four gas regulating regions 7 are consistent, wherein a plurality of large gas outlets 16, middle gas outlets 17 and small gas outlets 18 are sequentially arranged on three gas regulating regions 7, the other gas regulating region is of a closed structure, the aperture sizes of the large gas outlets 16, the middle gas outlets 17 and the small gas outlets 18 are sequentially decreased progressively, and the number and the arrangement positions of the large gas outlets 16, the middle gas outlets 17 and the small gas outlets 18 are consistent.

Furthermore, an exhaust area 19 which is consistent with the shape and the area of the gas adjusting area 7 is arranged on the adjusting disc 8, vent holes 20 which are consistent with the number and the arrangement positions of the large air outlets 16 are arranged on the exhaust area 19, and the aperture size of the vent holes 20 is larger than that of the large air outlets 16.

Furthermore, one end of the vent hole 10 close to the fixed exhaust disc 6 is communicated with an air guide pipe 21, and the fixed exhaust disc 6 is provided with an annular guide rail 22 consistent with the rotation track of the air guide pipe 21.

Further, the control knob 10 is provided with gear scale marks corresponding to four rotation circumferences of the exhaust area 19.

The working principle is as follows: in the using process of the suction gun, the exhaust pipe 11 is communicated with the helium mass spectrometer leak detector, the handle 2 of the suction gun shell 1 is held by a hand, sampling is carried out through the air suction pipe 3, sample gas enters the air suction pipe 3 and then enters the filter chamber 5 through the sampling pipe 4, and after impurities in the gas are filtered by the filter mesh 9 in the filter chamber 5, the sample gas enters the helium mass spectrometer leak detector through the exhaust pipe 11 to be detected. When the gas flow of the sample gas needs to be adjusted, an operator rotates the control knob 10 clockwise or counterclockwise by hand, so that the adjusting gear 13 at the end of the adjusting control rod 12 drives the adjusting disc 8 to rotate in the same direction through the adjusting rack 15 on the inner wall of the adjusting hole 14, meanwhile, the air guide pipe 21 on the exhaust area 19 rotates in the same direction along the direction of the annular guide rail 22 until reaching the corresponding gear on the gear scale mark, at the moment, the air guide pipe 21 is communicated with the large air outlet 16 or the middle air outlet 17 or the small air outlet on the gas adjusting area 7 or is aligned with the closed gas adjusting area 7, and the purpose of adjusting the gas flow is achieved by controlling the position of the exhaust area 19 on the fixed exhaust disc 6.

It is worth noting that: the whole device realizes control over the device through the controller, and because the equipment matched with the controller is common equipment, the device belongs to the existing mature technology, and the electrical connection relation and the specific circuit structure are not repeated.

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. An adjustable suction gun is characterized in that: comprises a suction gun shell (1) and a gas flow regulating component; the suction gun is characterized in that the suction gun shell (1) is of a pistol type structure conforming to human engineering, a handle (2) is arranged at the bottom of the suction gun shell (1), an air suction pipe (3) is arranged at one end, away from the handle (2), of the suction gun shell (1), an air inlet of the air suction pipe (3) is communicated with a sampling pipe (4), one end, away from the air suction pipe (3), of the sampling pipe (4) is communicated with an inlet of a filtering chamber (5), a fixed exhaust disc (6) is arranged on one side, close to the inlet, of the inside of the filtering chamber (5), and a gas adjusting area (7) is arranged on the; an adjusting disc (8) is arranged on one side of the fixed exhaust disc (6) far away from the air inlet of the filtering chamber (5), and a plurality of filter meshes (9) are arranged on one side of the adjusting disc (8); the adjusting disc (8) is connected with the gas adjusting component; the gas regulating assembly comprises a control knob (10) arranged at one end of the suction gun shell (1); the bottom of the filter chamber (5) is communicated with an exhaust pipe (11).

2. The adjustable suction gun as claimed in claim 1, wherein: one end fixedly connected with regulation control lever (12) that control knob (10) is close to rifle casing (1), and the pot head that control knob (10) was kept away from in regulation control lever (12) is equipped with adjusting gear (13), and adjusting gear (13) are connected with the center department of adjusting disc (8).

3. The adjustable suction gun as claimed in claim 1, wherein: the center of the adjusting disc (8) is provided with an adjusting hole (14), the adjusting gear (13) is arranged inside the adjusting hole (14), and a plurality of adjusting racks (15) meshed with the adjusting gear (13) are arranged on the circumferential inner wall of the adjusting hole (14) in an array mode.

4. The adjustable suction gun as claimed in claim 1, wherein: the quantity of gas conditioning district (7) is four, and the area size of four gas conditioning districts (7) is unanimous, wherein has set gradually a plurality of big ventholes (16), well venthole (17) and little venthole (18) on three gas conditioning district (7), and the other is closed shape structure, and the aperture size of big venthole (16), well venthole (17) and little venthole (18) diminishes in proper order, and the quantity and the array position of big venthole (16), well venthole (17) and little venthole (18) all keep unanimous.

5. The adjustable suction gun as claimed in claim 1, wherein: the adjusting disc (8) is provided with an exhaust area (19) which is consistent with the shape and the area of the gas adjusting area (7), the exhaust area (19) is provided with vent holes (20) which are consistent with the number and the arrangement positions of the large air outlet holes (16), and the aperture size of the vent holes (20) is larger than that of the large air outlet holes (16).

6. The adjustable suction gun as claimed in claim 5, wherein: one end of the vent hole (20) close to the fixed exhaust disc (6) is communicated with the air guide pipe (21), and the fixed exhaust disc (6) is provided with an annular guide rail (22) which is consistent with the rotation track of the air guide pipe (21).

7. The adjustable suction gun as claimed in claim 1, wherein: and gear scale marks corresponding to four rotating circumferences of the exhaust area (19) are arranged on the control knob (10).