CN210834419U

CN210834419U - Nitrogen blows appearance clamping structure

Info

Publication number: CN210834419U
Application number: CN201921441775.7U
Authority: CN
Inventors: 冯岩; 伊金玲; 杨建威; 邱凌
Original assignee: Laibiyi Science And Technology Xiamen Co ltd
Current assignee: Laibiyi Science And Technology Xiamen Co ltd
Priority date: 2019-09-02
Filing date: 2019-09-02
Publication date: 2020-06-23
Anticipated expiration: 2029-09-02

Abstract

The utility model discloses a nitrogen blowing instrument clamping structure in the technical field of chemical experimental instruments, which comprises a supporting vertical rod, wherein the bottom of the supporting vertical rod is fixedly connected with a vertical placing bottom plate, a needle fixing disc, a test tube clamping disc and a test tube tray are sequentially sleeved outside the supporting vertical rod from top to bottom, the test tube clamping disc is fixedly connected with the supporting vertical rod, the needle fixing disc and the test tube tray are movably connected with the supporting vertical rod in a lifting way, a plurality of nitrogen tube joints are distributed on the needle fixing disc along the circumferential array, the bottom of the nitrogen tube joints is connected with nitrogen needles, and a plurality of test tube positioning mechanisms are distributed on the test tube clamping disc along the circumferential array, the utility model provides a nitrogen blowing instrument clamping structure, a butterfly screw is manually screwed to drive a movable clamping block to move inwards, so that a test tube can be stably clamped and fixed, and the arrangement of a locking pressure, it ensures that the test tube can still be stably arranged when the nitrogen gas flow changes.

Description

Nitrogen blows appearance clamping structure

Technical Field

The utility model relates to a chemical industry laboratory glassware technical field specifically is a nitrogen blows appearance clamping structure.

Background

The nitrogen blow-drying instrument is also called as: nitrogen gas enrichment facility, nitrogen gas sweep the appearance, nitrogen gas blows concentrated appearance, and the concentrated appearance of sample is called for short: nitrogen blowing instrument, nitrogen blowing instrument and concentration instrument. Usually, nitrogen is blown into the surface of the heated sample to concentrate the sample, which has the characteristics of time saving, convenient operation, easy control and the like, and can quickly obtain expected results. The method is widely applied to the industries of pesticide residue analysis, commodity inspection, food, environment, pharmacy, biological products and the like and the sample preparation in liquid phase, gas phase and mass spectrum analysis.

Clamping structure is the important component in the nitrogen blowing appearance, and fixed nitrogen gas needle tubing of mainly used centre gripping and sample test tube, current nitrogen blowing appearance clamping structure generally fixes through comparatively simple and easy structures such as rubber band or spring buckle, and when the nitrogen gas air current changed, the shake phenomenon appeared easily in the sample test tube, therefore this type of fixed knot constructs and lacks sufficient stability.

Based on this, utility model has designed a nitrogen blowing appearance clamping structure to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a nitrogen blowing instrument clamping structure to solve above-mentioned technical problem.

In order to realize the purpose, the utility model provides the following technical scheme: the utility model provides a nitrogen blows appearance clamping structure, is including supporting the pole setting, the bottom rigid coupling that supports the pole setting has the bottom plate of putting immediately, it is equipped with syringe needle fixed disk, test tube grip disc and test tube tray to support pole setting outside top-down in proper order cover, test tube grip disc with support pole setting fixed connection, syringe needle fixed disk and test tube tray with support pole setting liftable swing joint, it is provided with a plurality of nitrogen gas coupling to distribute along circumference array on the syringe needle fixed disk, the bottom that nitrogen gas coupling connects is connected with the nitrogen gas syringe needle, it is provided with a plurality of test tube positioning mechanism to distribute along circumference array on the test tube grip disc.

Preferably, the top of the needle head fixing disc and the top of the test tube tray are both provided with lifting sleeves, and the outer wall of one side of each lifting sleeve is connected with a positioning hand wheel in a threaded manner.

Preferably, the test tube positioning mechanism including set up in centre gripping groove on the test tube centre gripping dish, the inner chamber sliding connection in centre gripping groove has the activity to press from both sides tight piece, centre gripping groove outside spiro union has thumb screw, thumb screw's one end stretches into centre gripping inslot inner chamber and presss from both sides tight piece with the activity and rotate and be connected, thumb screw outer wall cover is equipped with locking pressure spring and pressure spring separation blade, locking pressure spring butt in between test tube centre gripping dish lateral wall and the pressure spring separation blade.

Preferably, the inner side wall of the clamping groove and the inner side wall of the movable clamping block are both of V-shaped groove structures with opposite openings, and rubber cushion layers are arranged on the side walls of the V-shaped groove structures.

Preferably, the two sides of the movable clamping block are provided with sliding grooves matched with the side walls of the clamping grooves, and the movable clamping block is formed by combining two halves which are the same from top to bottom and is locked and fixed through screws.

Compared with the prior art, utility model's beneficial effect does:

the utility model discloses be provided with a plurality of test tube positioning mechanism along circumference array distribution on the test tube grip slipper, test tube positioning mechanism includes the centre gripping groove, the activity presss from both sides tight piece, thumb screw, locking pressure spring and pressure spring separation blade isotructure, during the use, put into the centre gripping groove with the activity and press from both sides between the tight piece, the inside wall in centre gripping groove and the activity press from both sides the inside wall of tight piece and be the V-arrangement groove structure that the opening is opposite, can be used to the test tube of the different pipe diameters of centre gripping, it moves to the inboard through the manual tight piece of the manual tight piece of the butterfly screw that revolves of revolving drive activity clamp, can press from both sides the test tube steadily to press from both sides fixedly, the.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive work.

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

FIG. 2 is a schematic view of the arrangement structure of the test tube positioning mechanism of the present invention;

FIG. 3 is a schematic structural view of the test tube positioning mechanism of the present invention;

fig. 4 is a schematic view of the movable clamping block of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1-supporting vertical rod, 2-vertical bottom plate, 3-needle fixing plate, 4-test tube clamping plate, 5-test tube tray, 6-nitrogen tube connector, 7-nitrogen needle, 8-test tube positioning mechanism, 81-clamping groove, 82-movable clamping block, 83-butterfly screw, 84-anti-loosening compression spring, 85-compression spring catch, 86-V-shaped groove structure, 87-rubber cushion layer, 9-lifting sleeve and 10-positioning hand wheel.

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. All other embodiments obtained by a person skilled in the art without any inventive work based on the embodiments of the present invention belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a nitrogen blows appearance clamping structure, including supporting pole setting 1, the bottom rigid coupling that supports pole setting 1 has the bottom plate 2 of putting immediately, it is equipped with syringe needle fixed disk 3 to support 1 outside top-down in the pole setting in proper order, test tube clamping disk 4 and test tube tray 5, test tube clamping disk 4 with support 1 fixed connection in pole setting, syringe needle fixed disk 3 and test tube tray 5 with support 1 liftable swing joint in pole setting, syringe needle fixed disk 3 is gone up and is provided with a plurality of nitrogen gas coupling 6 along circumference array distribution, nitrogen gas coupling 6's bottom is connected with nitrogen gas syringe needle 7, be provided with a plurality of test tube positioning mechanism 8 along circumference array distribution on the test tube clamping.

Wherein, the top of the needle head fixing disc 3 and the test tube tray 5 are both provided with a lifting sleeve 9, the outer wall of one side of the lifting sleeve 9 is screwed with a positioning hand wheel 10, the test tube positioning mechanism 8 comprises a clamping groove 81 arranged on the test tube clamping disc 4, the inner cavity of the clamping groove 81 is connected with a movable clamping block 82 in a sliding way, the outer side of the clamping groove 81 is screwed with a butterfly screw 83, one end of the butterfly screw 83 extends into the inner cavity of the clamping groove 81 and is connected with the movable clamping block 82 in a rotating way, the outer wall of the butterfly screw 83 is sleeved with an anti-loosening pressure spring 84 and a pressure spring catch 85, the anti-loosening pressure spring 84 is abutted between the side wall of the test tube clamping disc 4 and the pressure spring catch 85, the inner side wall of the clamping groove 81 and the inner side wall of the movable clamping block 82 are both V-shaped groove structures 86 with opposite openings, the movable clamping block 82 is formed by combining two halves which are the same from top to bottom and is locked and fixed through a screw.

One specific application of this embodiment is:

the utility model discloses a nitrogen blowing instrument clamping structure, the utility model discloses a plurality of test tube positioning mechanisms 8 are distributed on the test tube clamping disc 4 along the circumferential array, the test tube positioning mechanisms 8 comprise a clamping groove 81, a movable clamping block 82, a butterfly screw 83, a locking pressure spring 84, a pressure spring catch 85 and other structures;

during the use, unscrew the location hand wheel 10 on syringe needle fixed disk 3 and the test tube tray 5 earlier, adjust suitable height according to the test tube of centre gripping, earlier with the location hand wheel 10 locking on the test tube tray 5, after putting into the test tube between centre gripping groove 81 and the activity clamp piece 82 with the location hand wheel 10 locking on the syringe needle fixed disk 3, the inside wall of centre gripping groove 81 and the inside wall of activity clamp piece 82 are the V-arrangement groove structure 86 that the opening is opposite, can be used to the test tube of the different pipe diameters of centre gripping, it drives the inboard removal of activity clamp piece 82 to press from both sides tight piece 82 through manual wrong twist butterfly screw 83, can press from both sides the test tube steadily fixedly, locking pressure spring 84 and rubber cushion 87's setting can play anti-skidding locking effect simultaneously, when it guarantees that the nitrogen gas stream changes.

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.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; the term "connected" may refer to a direct connection, an indirect connection through an intermediate, a connection between two elements or an interaction relationship between two elements, and unless otherwise specifically defined, the term should be understood as having a specific meaning in the present application by those skilled in the art.

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 utility model provides a nitrogen blows appearance clamping structure which characterized in that: including supporting pole setting (1), the bottom rigid coupling that supports pole setting (1) has and puts bottom plate (2) immediately, it is equipped with syringe needle fixed disk (3), test tube grip disc (4) and test tube tray (5) to support pole setting (1) outside top-down in proper order the cover, test tube grip disc (4) with support pole setting (1) fixed connection, syringe needle fixed disk (3) and test tube tray (5) with support pole setting (1) liftable swing joint, it is provided with a plurality of nitrogen gas coupling (6) to follow circumference array distribution on syringe needle fixed disk (3), the bottom of nitrogen gas coupling (6) is connected with nitrogen gas syringe needle (7), be provided with a plurality of test tube positioning mechanism (8) along circumference array distribution on test tube grip disc (4).

2. The nitrogen blowing instrument clamping structure according to claim 1, characterized in that: the top of syringe needle fixed disk (3) and test tube tray (5) all is provided with lifting sleeve (9), one side outer wall spiro union of lifting sleeve (9) has location hand wheel (10).

3. The nitrogen blowing instrument clamping structure according to claim 1, characterized in that: test tube positioning mechanism (8) including seted up in centre gripping groove (81) on test tube centre gripping dish (4), the inner chamber sliding connection in centre gripping groove (81) has the activity to press from both sides tight piece (82), centre gripping groove (81) outside spiro union has thumb screw (83), the one end of thumb screw (83) stretches into centre gripping groove (81) inner chamber and press from both sides tight piece (82) with the activity and rotate and be connected, thumb screw (83) outer wall cover is equipped with locking pressure spring (84) and pressure spring separation blade (85), locking pressure spring (84) butt in between test tube centre gripping dish (4) lateral wall and pressure spring separation blade (85).

4. The nitrogen blowing instrument clamping structure according to claim 3, characterized in that: the inner side wall of the clamping groove (81) and the inner side wall of the movable clamping block (82) are both V-shaped groove structures (86) with opposite openings, and rubber cushion layers (87) are arranged on the side walls of the V-shaped groove structures (86).

5. The nitrogen blowing instrument clamping structure according to claim 3, characterized in that: the two sides of the movable clamping block (82) are provided with sliding grooves (88) matched with the side walls of the clamping grooves (81), and the movable clamping block (82) is formed by combining two halves which are the same up and down and is locked and fixed through screws.