CN214200839U

CN214200839U - Collecting needle matched with analytical instrument

Info

Publication number: CN214200839U
Application number: CN202023275625.9U
Authority: CN
Inventors: 邓家祥
Original assignee: Maxtor Dimensional Precision Instrument Manufacturing Co ltd Of Hebei
Current assignee: Maxtor Dimensional Precision Instrument Manufacturing Co ltd Of Hebei
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-09-14
Anticipated expiration: 2030-12-30

Abstract

The utility model discloses a complete set is in analytical instrument's collection needle, the below of needle tubing is equipped with the installation head, and the internal surface of installation head is equipped with internal thread a, the top surface of needle tubing is equipped with external screw thread a, the top spiro union of needle tubing has the collection head of acceleration, the collection head is including extension head a with higher speed, extension head b, extension head c, extension head d, extension head e, screwed joint and connecting block, the connecting block is located between screwed joint and the extension head e, the diameter of extension head e equals the diameter of extension head d, the diameter of extension head d equals the diameter of extension head c, the diameter of extension head c equals the diameter of extension head b, the diameter of extension head b equals the diameter of extension head a, extension head a is located the left side of extension head b, extension head c is located the front side of extension head d. Through the setting of acceleration collection head, promoted the speed of collecting gas to through the setting of dust cover, can effectively avoid the dust to get into the inside of collecting the needle, thereby guarantee the accuracy of analysis result.

Description

Collecting needle matched with analytical instrument

Technical Field

The utility model relates to a collect the needle field, concretely relates to complete set in analytical instrument's collection needle.

Background

There are various kinds of analysis instruments, among which a gas analysis instrument is one of the common analysis instruments, and a gas analysis instrument is a flow analysis instrument for measuring gas components. Gas sensors are used to detect the types of gases present in the environment, gas sensors are sensors used to detect the composition and content of gases. It is generally considered that the definition of the gas sensor is based on the classification of the detection object, that is, all sensors for detecting the composition and concentration of gas are called gas sensors, regardless of whether it is a physical method or a chemical method. The gas analysis instrument all has supporting collection needle, and common collection needle only has a collection head, and the speed when collecting gas is general to the top of collection needle is mostly open structure, when not using, and the dust is accumulated easily to the inboard, can influence the analysis result of gas analysis instrument to gas.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned drawbacks and deficiencies of the prior art, it would be desirable to provide a collection needle that fits into an analytical instrument, increases the rate at which gas is collected, and also avoids dust from entering the interior of the collection needle.

According to the technical scheme provided by the embodiment of the utility model, the collection needle matched with an analytical instrument comprises a needle tube and a mounting head, wherein the mounting head is arranged below the needle tube, an internal thread a is arranged on the inner surface of the mounting head, an external thread a is arranged on the outer surface above the needle tube, an accelerating collection head is screwed on the upper part of the needle tube, the accelerating collection head comprises an expansion head a, an expansion head b, an expansion head c, an expansion head d, an expansion head e, a screw joint and a connecting block, the connecting block is positioned between the screw joint and the expansion head e, the diameter of the expansion head e is equal to that of the expansion head d, the diameter of the expansion head d is equal to that of the expansion head c, the diameter of the expansion head c is equal to that of the expansion head b, the diameter of the expansion head b is equal to that of the expansion head a, the expansion head a is positioned on the left side of the expansion head b, the extension head c is located the front side of extension head d, extension head e is located the top of screwed joint, the diameter of screwed joint is greater than the diameter of needle tubing, the outside of needle tubing just is located the below welding of acceleration collection head has the fixed head, the diameter of fixed head is greater than the diameter of screwed joint, the top spiro union of fixed head has the dust cover, the dust cover is located the outside of acceleration collection head, the bottom of dust cover the bottom of screwed joint with the bottom of installing the head is open structure.

The utility model discloses in, the upper end of needle tubing is straight structure, the diameter of needle tubing is less than the diameter of installation head.

The utility model discloses in, install the head with become as an organic whole between the needle tubing structure, it is located to install the head the below of fixed head.

The utility model discloses in, the material of collection head of acceleration the material of needle tubing the material of installation head the material of fixed head with the material of dust cover is the stainless steel.

The utility model discloses in, extension head a screwed joint with the needle tubing is located same vertical direction, screwed joint's internal surface be equipped with external screw thread a agrees with internal thread b mutually.

The utility model discloses in, the middle part of fixed head be equipped with needle tubing assorted through-hole, the left side wall of dust cover with be equipped with the interval between the extension head a, the right side wall of dust cover with be equipped with the interval between the extension head b.

To sum up, the utility model has the advantages that: through the setting of acceleration collection head, promoted the speed of collecting gas to through the setting of dust cover, can effectively avoid the dust to get into the inside of collecting the needle, thereby guarantee the accuracy of analysis result.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic top view of the accelerating collecting head of the present invention;

FIG. 3 is a schematic view of the connection between the needle tube and the mounting head of the present invention;

fig. 4 is a schematic top view of the fixing head of the present invention.

Reference numbers in the figures: 1. a needle tube; 2. a mounting head; 3. accelerating the collection head; 4. an extension head a; 5. an extension head b; 6. an extension head c; 7. an extension head d; 8. an extension head e; 9. a fixed head; 10. a dust cover.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Referring to fig. 1, 2, 3 and 4, a collecting needle matched with an analysis instrument includes a needle tube 1 and a mounting head 2, the mounting head 2 is disposed below the needle tube 1, an internal thread a is disposed on an inner surface of the mounting head 2, an external thread a is disposed on an upper outer surface of the needle tube 1, an accelerating collecting head 3 is screwed on an upper portion of the needle tube 1, the accelerating collecting head 3 includes an expanding head a4, an expanding head b5, an expanding head c6, an expanding head d7, an expanding head e8, a screw joint and a connecting block, the connecting block is located between the screw joint and the expanding head e8, a diameter of the expanding head e8 is equal to a diameter of the expanding head d7, a diameter of the expanding head d7 is equal to a diameter of the expanding head c6, a diameter of the expanding head c6 is equal to a diameter of the expanding head b5, a diameter of the expanding head b5 is equal to a diameter of the expanding head a4, the extension head a4 is located the left side of extension head b5, extension head c6 is located the front side of extension head d7, extension head e8 is located the top of screwed joint, the diameter of screwed joint is greater than the diameter of needle tubing 1, the outside of needle tubing 1 just is located the below welding of acceleration collection head 3 has fixed head 9, the diameter of fixed head 9 is greater than the diameter of screwed joint, the top spiro union of fixed head 9 has dust cover 10, dust cover 10 is located the outside of acceleration collection head 3, the bottom of dust cover 10 the bottom of screwed joint with the bottom of installation head 2 is open structure.

As shown in fig. 1, 3 and 4, the upper end of the needle tube 1 is a straight structure, and the diameter of the needle tube 1 is smaller than that of the mounting head 2. The mounting head 2 and the needle tube 1 are of an integrally formed structure, and the mounting head 2 is located below the fixing head 9.

As shown in fig. 1, 2, 3 and 4, the material of the acceleration collection head 3, the material of the needle tube 1, the material of the attachment head 2, the material of the fixing head 9 and the material of the dust cover 10 are all stainless steel. The expansion head a4, the screwed joint and the needle tube 1 are located in the same vertical direction, the inner surface of the screwed joint is provided with an internal thread b matched with the external thread a, the arrangement of the collecting head 3 is accelerated, and the rapid collection of gas is facilitated.

As shown in fig. 1, 2, 3 and 4, a through hole matching with the needle tube 1 is formed in the middle of the fixing head 9, a space is formed between the left side wall of the dust cover 10 and the expansion head a4, a space is formed between the right side wall of the dust cover 10 and the expansion head b5, and the dust cover 10 can effectively prevent dust from entering the needle tube 1.

Example 1: the mounting head 2 is arranged below the needle tube 1, an integrated structure is formed between the mounting head and the needle tube 1, the accelerating collecting head 3 is screwed above the needle tube 1, the expanding head a4 is positioned on the left side of the expanding head b5, the expanding head c6 is positioned on the front side of the expanding head d7, the expanding head e8 is positioned above the screw joint, the fixing head 9 is welded on the outer side of the needle tube 1 and positioned below the accelerating collecting head 3, and the dust cover 10 is screwed above the fixing head 9.

Example 2: before using gas analysis instrument, screw off dust cover 10 earlier, install needle tubing 1 in the top of gas analysis instrument through installation head 2, when collecting gas, gas can be simultaneously from extension head a4, extension head b5, extension head c6, extension head d7 and extension head e8 entering, can promote the speed of collecting gas, when gas analysis instrument does not use, can fix dust cover 10 in the top of fixed head 9, can effectively avoid the dust to get into in the needle tubing 1 to the accuracy of analysis result has been guaranteed.

The foregoing description is only exemplary of the preferred embodiments of the invention and is provided for the purpose of illustrating the general principles of the invention. Meanwhile, the scope of the present invention is not limited to the specific combinations of the above-described technical features, and other technical features or equivalent features may be combined arbitrarily without departing from the scope of the present invention. For example, the above features and (but not limited to) technical features having similar functions disclosed in the present invention are mutually replaced to form the technical solution.

Claims

1. The collection needle that matches in analytical instrument includes needle tubing (1) and installation head (2), characterized by: the mounting head (2) is arranged below the needle tube (1), an internal thread a is arranged on the inner surface of the mounting head (2), an external thread a is arranged on the outer surface of the upper portion of the needle tube (1), the accelerating collecting head (3) is connected to the upper portion of the needle tube (1) in a threaded manner, the accelerating collecting head (3) comprises an expanding head a (4), an expanding head b (5), an expanding head c (6), an expanding head d (7), an expanding head e (8), a threaded joint and a connecting block, the connecting block is located between the threaded joint and the expanding head e (8), the diameter of the expanding head e (8) is equal to that of the expanding head d (7), the diameter of the expanding head d (7) is equal to that of the expanding head c (6), the diameter of the expanding head c (6) is equal to that of the expanding head b (5), and the diameter of the expanding head b (5) is equal to that of the expanding head a (4), extension head a (4) are located the left side of extension head b (5), extension head c (6) are located the front side of extension head d (7), extension head e (8) are located screwed joint's top, screwed joint's diameter is greater than the diameter of needle tubing (1), the outside of needle tubing (1) just is located the below welding of acceleration collection head (3) has fixed head (9), the diameter of fixed head (9) is greater than screwed joint's diameter, the top spiro union of fixed head (9) has dust cover (10), dust cover (10) are located the outside of acceleration collection head (3), the bottom of dust cover (10), screwed joint's bottom with the bottom of installing head (2) is open structure.

2. The collection needle as set forth in claim 1, wherein: the upper end of the needle tube (1) is of a straight structure, and the diameter of the needle tube (1) is smaller than that of the mounting head (2).

3. The collection needle as set forth in claim 1, wherein: the mounting head (2) and the needle tube (1) are of an integrally formed structure, and the mounting head (2) is located below the fixing head (9).

4. The collection needle as set forth in claim 1, wherein: the material of the accelerating collection head (3), the material of the needle tube (1), the material of the mounting head (2), the material of the fixing head (9) and the material of the dust cover (10) are all stainless steel.

5. The collection needle as set forth in claim 1, wherein: the expansion head a (4), the screwed joint and the needle tube (1) are positioned in the same vertical direction, and the inner surface of the screwed joint is provided with an internal thread b matched with the external thread a.

6. The collection needle as set forth in claim 1, wherein: the middle part of fixed head (9) be equipped with needle tubing (1) assorted through-hole, the left side wall of dust cover (10) with be equipped with the interval between extension head a (4), the right side wall of dust cover (10) with be equipped with the interval between extension head b (5).