CN210853686U

CN210853686U - Sealed anti-oxidation device for vacuumizing and nitrogen filling of needle-shaped workpiece

Info

Publication number: CN210853686U
Application number: CN201921922396.XU
Authority: CN
Inventors: 赵小健; 赵红连; 年颖
Original assignee: CNNC Tianjin Technology Development Co Ltd
Current assignee: CNNC Tianjin Technology Development Co Ltd
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2020-06-26
Anticipated expiration: 2029-11-08

Abstract

The utility model discloses a sealed anti-oxidation device for vacuumizing and filling nitrogen for a needle-shaped workpiece, which comprises a tank body, a bracket device arranged in the tank body and used for placing the needle-shaped workpiece, and a cover body device connected with the upper opening of the tank body in a sealing way, wherein the tank body is connected with one end of a pipeline in a through way, and the other end of the pipeline is divided into a first branch pipe and a second branch pipe; the first branch pipe is communicated with the nitrogen bottle, and a second diaphragm type vacuum valve for controlling nitrogen conveying in the nitrogen bottle is arranged on the first branch pipe; the second branch pipe is communicated with the vacuum pump, and a third diaphragm type vacuum valve for controlling the vacuum pump to pump air is arranged on the second branch pipe. After the needle-shaped workpiece is placed in the tank body, the vacuum pump is operated to evacuate the tank body, and then high-purity nitrogen is put into the tank body, so that the needle-shaped workpiece can be stored for a long time without being oxidized.

Description

Sealed anti-oxidation device for vacuumizing and nitrogen filling of needle-shaped workpiece

Technical Field

The utility model belongs to the technical field of machine part processing is relevant, especially, relate to a sealed anti oxidation device of needle-shaped work piece evacuation nitrogen gas that fills.

Background

In some industrial production, the workpiece which is easy to oxidize needs to be stored for a long time, the chemical treatment cannot be carried out on the workpiece, and only an oxygen isolation method is adopted. Therefore, a sealing anti-oxidation device which is vacuumized and filled with stable gas is needed to be designed to meet the requirement of long-term storage of the easily oxidized workpiece. Therefore, a sealing anti-oxidation device for vacuumizing and filling nitrogen for needle-shaped workpieces is required.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sealed anti oxidation device of needle-like work piece evacuation nitrogen gas of filling to solve the problem of background art.

In order to achieve the above object, the utility model discloses a needle-shaped workpiece evacuation fills nitrogen gas's sealed anti oxidation device's concrete technical scheme as follows:

a sealed anti-oxidation device for vacuumizing and filling nitrogen for a needle-shaped workpiece comprises a tank body, a bracket device for placing the needle-shaped workpiece and a cover body device which is connected with an opening at the upper part of the tank body in a sealing way, wherein the tank body is connected with one end of a pipeline in a penetrating way, and the other end of the pipeline is divided into a first branch pipe and a second branch pipe;

the first branch pipe is communicated with the nitrogen bottle, and a second diaphragm type vacuum valve for controlling nitrogen conveying in the nitrogen bottle is arranged on the first branch pipe; the second branch pipe is communicated with the vacuum pump, and a third diaphragm type vacuum valve for controlling the vacuum pump to pump air is arranged on the second branch pipe.

Furthermore, a first diaphragm type vacuum valve is arranged on the pipeline close to the tank body, and the first diaphragm type vacuum valve can simultaneously control the opening and closing of the collecting channel of the first branch pipe and the collecting channel of the second branch pipe.

Furthermore, the pipeline is composed of a plurality of sections of pipelines, and the pipelines are detachably connected with each other through flanges.

Further, the number of the flanges is two, and the flanges are respectively arranged on two sides of the first diaphragm type vacuum valve.

Further, the bracket device comprises a tray detachably connected to the inner side wall of the tank body, and a plurality of round holes used for placing the needle-shaped workpieces are formed in the tray.

Further, be equipped with many places square boss on the jar internal side wall, and the periphery of tray is seted up and is dismantled the recess of joint on square boss.

Further, the tray is connected to the fixed disk, and the fixed disk passes through screw threaded connection on the jar body to play stabilizing effect to the tray.

Furthermore, the cover body device comprises a gland which is covered on the upper opening of the tank body, and the gland and the edge of the tank body are fixedly sealed through calipers.

Further, calliper includes the bolt of screw thread grafting in U type buckle, the U type buckle, and it is spacing to the gland of jar body top mouth through bolt and U type buckle.

Furthermore, the upper end face of the tank body is also provided with a groove, a sealing ring is arranged in the groove, and the sealing ring is in fit sealing with the lower end face of the gland.

Compared with the prior art, the utility model discloses following beneficial effect has:

after the needle-shaped workpiece is placed in the tank body, the vacuum pump is operated to evacuate the tank body, and then high-purity nitrogen is put into the tank body, so that the needle-shaped workpiece can be stored for a long time without being oxidized.

Drawings

FIG. 1 is a schematic view of a sealing anti-oxidation device for vacuuming and filling nitrogen gas to a needle-shaped workpiece;

figure 2 is the first step of using the utility model to vacuumize and fill nitrogen: placing a workpiece schematic diagram;

FIG. 3 is a second step of applying the utility model to vacuumize and fill nitrogen: a schematic view of the sealing cover is placed;

FIG. 4 shows a third step of applying the present invention to vacuumize and fill nitrogen: a locking seal schematic;

FIG. 5 shows a fourth step of applying the present invention to vacuumize and fill nitrogen: evacuation and nitrogen filling.

The reference numbers in the figures illustrate: the device comprises a sealing ring 1, a fixed disc 2, a gasket 3, a screw 4, a gland 5, a caliper 6, a first diaphragm type vacuum valve 7, a second diaphragm type vacuum valve 8, a nitrogen cylinder 9, a tray 10, a tank body 11, a quick-release connecting flange 12, a third diaphragm type vacuum valve 13, a vacuum pump 14 and a needle-shaped workpiece 15.

Detailed Description

For a better understanding of the objects, structure and function of the invention, reference should be made to the drawings, FIGS. 1-5, which are included to illustrate the invention.

Referring to fig. 1, a sealed anti-oxidation device for vacuumizing and filling nitrogen for needle-shaped workpieces is designed, which comprises a tank body 11, a bracket device for placing the needle-shaped workpieces 15 and a cover device which is hermetically connected with an opening at the upper part of the tank body 11, wherein the bracket device comprises a tray 10 which is detachably connected on the inner side wall of the tank body 11, and a plurality of round holes for placing the needle-shaped workpieces 15 are formed in the tray 10. Be equipped with many places square boss on the 11 inside walls of jar body, and the recess of joint on square boss can be dismantled is seted up to the periphery of tray 10. The tray 10 is coupled to the fixed plate 2, and the fixed plate 2 is screw-coupled to the tank 11 by the screw 4, thereby stabilizing the tray 10. The cover body device comprises a gland 5 covering the upper opening of the tank body 11, and the gland 5 and the edge of the tank body 11 are fixedly sealed through calipers. Caliper includes the bolt of screw thread grafting in U type buckle, the U type buckle, and it is spacing to jar 5 glands of 11 upper square mouths of body through bolt and U type buckle. In order to improve the sealing performance, a groove is further formed in the upper end face of the tank body 11, a sealing ring is arranged in the groove, and the sealing ring is in fit sealing with the lower end face of the gland 5.

The tank body 11 is connected with one end of the pipeline in a penetrating way, and the other end of the pipeline is divided into a first branch pipe and a second branch pipe; the first branch pipe is communicated with a nitrogen bottle 9, and a second diaphragm type vacuum valve 8 for controlling nitrogen conveying in the nitrogen bottle 9 is arranged on the first branch pipe; the second branch pipe is communicated with a vacuum pump 14, and a third diaphragm type vacuum valve 13 for controlling the air suction of the vacuum pump 14 is arranged on the second branch pipe. Wherein, the pipeline comprises the multistage pipeline, and can dismantle the connection through flange 12 between pipeline and the pipeline. Of these, there are two flanges 12, and the flanges 12 are respectively provided on both sides of the first diaphragm type vacuum valve 7. The pipelines are detachably connected through the flanges 12, so that the pipelines are convenient to detach and mount, and parts are replaced aiming at the locally damaged pipelines.

The main invention points are that: after the needle-shaped workpiece is placed inside the tank 11, the vacuum pump 14 is operated to evacuate the tank 11, and then the nitrogen gas cylinder 9 is controlled to place high-purity nitrogen gas, which can ensure that the needle-shaped workpiece 15 is stored for a long time without being oxidized. A first diaphragm type vacuum valve 7 is arranged on the pipeline close to the tank body 11, the first diaphragm type vacuum valve 7 can simultaneously control the opening and closing of the collecting channels of the first branch pipe and the second branch pipe, the first diaphragm type vacuum valve 7 is equivalent to a main valve, and the second diaphragm type vacuum valve 8 and the third diaphragm type vacuum valve 13 are equivalent to respectively controlled branch valves.

The utility model discloses a work flow as follows:

1. the needle-shaped workpiece 15 is placed in a circular hole of the tray 10, the tray 10 is placed on a square boss in the tank body 11 after being aligned, the fixed disk 2 is positioned through the screw 4 and the gasket 3, and the tray 10 is locked by the fixed disk 2. As shown in fig. 2.

2. The sealing ring 1 is placed in a groove at the upper end of the tank body 11, and the gland 5 is placed. As shown in fig. 3.

3. The calipers 6 are placed on the side faces of the gland 5 and the tank body 11, the calipers 6 are locked, and the gland 5 and the tank body 11 tightly press the sealing ring 1 to realize sealing. As shown in fig. 4.

4. And the connecting pipeline is connected with the vacuum pump 14 and the nitrogen cylinder 9. As shown in fig. 5.

5. Opening the first diaphragm type vacuum valve 7 and the third diaphragm type vacuum valve 13, closing the second diaphragm type vacuum valve 8, opening the vacuum pump 14, and vacuumizing the tank body 11; and after the vacuum degree reaches the standard, closing the third diaphragm type vacuum valve 13, opening the second diaphragm type vacuum valve 8, filling nitrogen into the tank body 11, stopping filling the nitrogen when the pressure of the nitrogen in the tank body 11 exceeds the atmospheric pressure, closing the first diaphragm type vacuum valve 7, disassembling the connecting flange 12 and finishing the operation.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes or equivalents may be substituted for elements thereof by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are intended to be covered by the present invention.

Claims

1. The utility model provides a sealed anti oxidation device of needle-like work piece evacuation nitrogen filling, installs the bracket device of placing needle-like work piece (15), jar body (11) upper portion opening sealing connection's lid device, its characterized in that in jar body (11), jar body (11): the tank body (11) is connected to one end of the pipeline in a penetrating mode, and the other end of the pipeline is divided into a first branch pipe and a second branch pipe;

the first branch pipe is communicated with a nitrogen bottle (9), and a second diaphragm type vacuum valve (8) for controlling nitrogen conveying in the nitrogen bottle (9) is arranged on the first branch pipe; the second branch pipe is communicated with a vacuum pump (14), and a third diaphragm type vacuum valve (13) for controlling the vacuum pump (14) to pump air is arranged on the second branch pipe.

2. The needle-shaped workpiece vacuum-pumping nitrogen-filling sealing oxidation prevention device as claimed in claim 1, wherein a first diaphragm type vacuum valve (7) is further provided on the pipe close to the tank body (11), and the first diaphragm type vacuum valve (7) can simultaneously control the opening and closing of the collecting channel of the first branch pipe and the second branch pipe.

3. The needle-shaped workpiece vacuum-pumping nitrogen-filling sealing oxidation prevention device as claimed in claim 2, wherein the pipeline is composed of a plurality of sections of pipelines, and the pipelines are detachably connected with each other through flanges (12).

4. The needle-shaped workpiece vacuum-pumping nitrogen-filling sealing oxidation preventing device as claimed in claim 3, wherein there are two flanges (12), and the flanges (12) are respectively provided on both sides of the first diaphragm type vacuum valve (7).

5. The sealing and oxidation-preventing device for vacuumizing and filling nitrogen for the needle-shaped workpiece according to claim 1, wherein the bracket device comprises a tray (10) detachably connected to the inner side wall of the tank body (11), and the tray (10) is provided with a plurality of round holes for placing the needle-shaped workpiece (15).

6. The sealing and anti-oxidation device for vacuumizing and filling nitrogen for the needle-shaped workpiece according to claim 5, wherein a plurality of square bosses are arranged on the inner side wall of the tank body (11), and a groove detachably clamped on the square bosses is arranged on the periphery of the tray (10).

7. The needle-shaped workpiece vacuumizing nitrogen-filling sealing anti-oxidation device according to claim 6, wherein the tray (10) is connected to the fixed disk (2), and the fixed disk (2) is screwed on the tank body (11) through a screw (4), so that the tray (10) is stabilized.

8. The needle-shaped workpiece vacuumizing nitrogen-filling sealing anti-oxidation device according to claim 1, wherein the cover device comprises a gland (5) covering an upper opening of the tank (11), and the gland (5) and the edge of the tank (11) are fixedly sealed through a caliper.

9. The sealing and oxidation preventing device for vacuumizing and filling nitrogen gas of a needle-shaped workpiece according to claim 8, wherein the caliper comprises a U-shaped buckle and a bolt inserted in the U-shaped buckle through threads, and the bolt and the U-shaped buckle limit a gland (5) at an upper opening of the tank body (11).

10. The needle-shaped workpiece vacuumizing nitrogen-filling sealing anti-oxidation device according to claim 8, wherein the upper end surface of the tank body (11) is further provided with a groove, a sealing ring is arranged in the groove, and the sealing ring is in fit sealing with the lower end surface of the gland (5).