CN219506307U

CN219506307U - Vacuumizing device for gas sampling tube

Info

Publication number: CN219506307U
Application number: CN202223025272.6U
Authority: CN
Inventors: 王伟伟; 潘定辉
Original assignee: Shanghai Aoxiang Medical Technology Co ltd
Current assignee: Shanghai Aoxiang Medical Technology Co ltd
Priority date: 2022-11-12
Filing date: 2022-11-12
Publication date: 2023-08-11
Anticipated expiration: 2032-11-12

Abstract

The utility model relates to a gas sampling tube vacuumizing device, which belongs to the field of vacuum devices and comprises a bracket device, wherein a die shifting device is arranged on a lower bracket of the bracket device, the die shifting device clamps a die frame and then moves, vacuumizing equipment is arranged on an upper bracket of the bracket device, guide posts are arranged at four corners of a vacuum chamber of the vacuumizing equipment, a pushing device is connected to the central position of the upper end surface of the vacuum chamber, the vacuumizing precision of a sampling tube is improved through detection of a pressure difference switch, the whole inside of the vacuum chamber is vacuumized, and the vacuumizing of a plurality of groups of sampling tubes is realized through the die frame and the die shifting device, so that the vacuumizing production efficiency of the sampling tubes is improved.

Description

Vacuumizing device for gas sampling tube

Technical Field

The utility model belongs to the field of vacuum devices, and particularly relates to a gas sampling tube vacuumizing device.

Background

The principle of the vacuum sampling tube is that a sampling tube test tube with a head cover is pre-pumped into different vacuum degrees, a gas sample is automatically and quantitatively collected by utilizing the negative pressure of the sampling tube test tube, and under the action of the negative pressure, sampling gas enters the sampling tube, and if the inner cavity of the sampling tube is large in volume, the vacuum degree of a part of the sampling tube is consumed, so that the collection amount of the sampling tube is reduced.

The existing sampling tube is vacuumized, the vacuum pump is connected with the air pipe to be matched with the rubber plug to be inserted into the sampling bottle for vacuumization, but the operation cannot meet the existing production requirement, the production efficiency is low, and the vacuum precision value in the sampling tube cannot be guaranteed.

The utility model is characterized by comprising the following steps: a vacuum-pumping device for test tubes (application number: 201621155569.6, application publication date: 2016.10.31). The application discloses a evacuating device for test tube, including the vacuum pump, be connected with the air extraction house steward on the vacuum pump, be connected with a plurality of equidistance interval arrangement's three-way pipe on the air extraction house steward, three-way pipe and air extraction house steward looks vertically orientation are connected with the air extraction and are divided the pipe, and the rubber mouth is all installed to every air extraction is divided the pipe end, but can not satisfy modernized production demand, and the efficiency of production vacuum test tube is lower.

Disclosure of Invention

1. Technical problem to be solved by the utility model

The utility model aims to solve the problem of the vacuum pumping precision in the sampling tube and improve the vacuum pumping efficiency so as to meet the requirement of automatic production.

2. Technical proposal

In order to achieve the above purpose, the technical scheme provided by the utility model is as follows:

the utility model relates to a gas sampling tube vacuumizing device, which comprises a bracket device, wherein a lower bracket of the bracket device is provided with a die shifting device, the die shifting device clamps a die carrier and then moves, the upper bracket of the bracket device is provided with vacuumizing equipment, four corners of a vacuum chamber of the vacuumizing equipment are provided with guide posts, the central position of the upper end face of the guide posts is connected with a pushing device, the guide posts penetrate through guide sleeves at corresponding positions, the guide sleeves penetrate through and are fixed on the upper bracket, the upper end face of the vacuum chamber is provided with a vacuum cylinder and a differential pressure switch, a plug plate is designed in the vacuum chamber and communicated with the vacuum cylinder, the side face of the vacuum chamber is provided with an elbow, the lower end face of the vacuum chamber is provided with a sealing groove, the pushing device pushes the vacuum chamber downwards, so that the die carrier is covered by the vacuum chamber, at the moment, the sealing groove of the lower end face of the vacuum chamber is tightly attached to the surface of the lower bracket, so that the vacuum chamber is in a closed state, a sealing rubber pad is arranged in the sealing groove, and the plug plate presses a cap under the pushing of the vacuum cylinder to complete the sealing of a sampling tube.

Preferably, a spring guide post is arranged between the upper die plate and the lower die plate of the die carrier, and a plurality of groups of through holes corresponding to the lower die plate are designed on the upper die plate for installing the sampling tube.

Preferably, a servo motor on the mould moving device drives the synchronous belt to rotate, an air cylinder mounting plate is fixedly mounted on the synchronous belt and moves along with the synchronous belt on a sliding rail at the lower end, a telescopic air cylinder is mounted at the upper end of the air cylinder, a clamping jaw is connected at the front end of the telescopic air cylinder, and the clamping jaw moves for clamping the mould frame.

Preferably, the cylinder mounting plate is provided with an induction piece, and the induction piece and the inductor generate an electric signal to control the rotation of the servo motor when contacting, and the inductor is arranged at two ends of the sliding rail.

Preferably, a barrier strip is arranged on the lower support of the support device, the barrier strip is positioned on two sides of the die carrier, four support columns are arranged between the lower support and the upper support, a limiter is arranged on each support column, the limiter controls the descending displacement distance of the pushing device, and the pushing device is arranged on the upper support to drive the vacuum chamber to move up and down.

3. Advantageous effects

Compared with the prior art, the technical scheme provided by the utility model has the following beneficial effects:

(1) According to the gas sampling tube vacuumizing device, the vacuumizing precision of the sampling tubes is improved through detection of the differential pressure switch, the whole inside of the vacuum chamber is vacuumized, the vacuumizing of multiple groups of sampling tubes is automatically realized through the die carrier and the die shifting device, and the vacuumizing production efficiency of the sampling tubes is improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a gas sampling tube vacuum apparatus according to the present utility model.

Fig. 2 is a schematic structural view of a bracket device of a gas sampling tube vacuumizing device.

FIG. 3 is a schematic view of the internal structure of a vacuum chamber of a gas sampling tube vacuum apparatus according to the present utility model.

FIG. 4 is a schematic diagram of a mold moving device of a gas sampling tube vacuum apparatus according to the present utility model.

Fig. 5 is a schematic diagram of a structure of a gas sampling tube vacuumizing device at a position a.

FIG. 6 is a schematic diagram of the structure of the B-site of the gas sampling tube vacuumizing device.

Reference numerals in the schematic drawings illustrate:

100. a bracket device; 110. a lower bracket; 111. a barrier strip; 120. an upper bracket; 121. guide sleeve; 130. a support column; 131. a limiter;

200. a mould moving device; 210. a servo motor; 220. a synchronous belt; 230. a cylinder mounting plate; 231. a telescopic cylinder; 232. a clamping jaw; 233. an induction piece; 234. an inductor; 240. a slide rail;

300. a mould frame; 310. an upper template; 320. a lower template; 330. a spring guide post; 340. a through hole;

400. a vacuum pumping device; 410. a vacuum chamber; 411. a corking plate; 412. a vacuum cylinder; 413. a differential pressure switch; 414. bending the pipe; 415. sealing the groove; 420. a guide post; 430. pushing device.

Detailed Description

In order that the utility model may be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings, in which, however, the utility model may be embodied in many different forms and are not limited to the embodiments described herein, but are instead provided for the purpose of providing a more thorough and complete disclosure of the utility model.

It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may also be present; when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present; the terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs; the terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model; the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Example 1

Referring to fig. 1-6, a gas sampling tube vacuumizing device of this embodiment includes a bracket device 100, a mold moving device 200 is installed on a lower bracket 110 of the bracket device 100, the mold moving device 200 clamps and moves the mold frame 300, a vacuumizing device 400 is installed on an upper bracket 120 of the bracket device 100, guide posts 420 are installed at four corners of a vacuum chamber 410 of the vacuumizing device 400, a pushing device 430 is connected to a central position of an upper end face of the vacuumizing device, the guide posts 420 penetrate through guide sleeves 121 at corresponding positions, the guide sleeves 121 penetrate through and are fixed on the upper bracket 120, a vacuum cylinder 412 and a differential pressure switch 413 are installed on an upper end face of the vacuum chamber 410, a plunger plate 411 is designed in the vacuum chamber, the vacuum cylinder 412 is communicated with a bent pipe 414 is designed on a side face of the vacuum chamber, a sealing groove 415 is designed on a lower end face of the vacuum chamber 410 is pushed down by the pushing device 430, so that the vacuum chamber 410 covers the mold frame 300, at this time, the sealing groove 415 at the lower end surface of the vacuum chamber 410 is tightly attached to the surface of the lower bracket 110 to form a closed state inside the vacuum chamber 410, a sealing rubber pad is installed in the sealing groove 415, the sealing plate 411 presses the cap under the pushing of the vacuum cylinder 412 to seal the sampling tube, the design of the structure is that the sampling tube on the die carrier 300 enters between the barrier strips 111 on the lower bracket 110 under the pushing of the conveyor belt, at this time, the cap on the sampling tube and the upper port of the sampling tube are not completely closed, the vacuum chamber 410 is pushed downwards by the pushing device 430, at this time, the vacuum chamber 410 covers the die carrier 300 integrally, the sealing rubber pad on the sealing groove 415 is tightly attached to the surface of the lower bracket 110 to form a closed state inside the vacuum chamber 410, at this time, the vacuum chamber 410 is vacuumized by the elbow 414, the vacuum precision is controlled by the differential pressure switch 413, when the differential pressure switch 413 reaches a specified value, the vacuum cylinder 412 pushes the plunger plate 411 to press the cap on the sampling tube, at the moment, the cap and the inside of the sampling tube form a seal, the internal pressure of the vacuum chamber 410 is balanced with the outside through the bent tube 414, the height of the vacuum chamber 410 is lifted through the pushing device 430, at the moment, the mold shifting device 200 starts to shift the mold frame 300, the stability of the movement of the vacuum chamber 410 is improved through the cooperation of the guide pillar 420 and the guide sleeve 121, the device improves the precision of the vacuum pumping of the sampling tube through the detection of the pressure difference switch 413, the whole vacuum pumping of the inside of the vacuum chamber 410 is realized, the vacuum pumping of a plurality of groups of sampling tubes is realized through the mold frame 300 and the mold shifting device 200, and the production efficiency of the vacuum pumping of the sampling tube is improved.

The spring guide posts 330 are installed between the upper template 310 and the lower template 320 of the die carrier 300 in this embodiment, multiple groups of through holes 340 corresponding to the lower template 320 are designed on the upper template 310 for installing sampling tubes, the design of the structure realizes that the spring guide posts 420330 enable the lamination degree of the cap and the corking plate 411 to be higher to form effective pressing in the cover pressing process of the sampling tubes, multiple groups of through holes 340 are designed on the die carrier 300 for realizing simultaneous vacuumizing of multiple groups of sampling tubes, and the production efficiency is improved.

The servo motor 210 on the mold shifting device 200 of this embodiment drives the synchronous belt 220 to rotate, the cylinder mounting plate 230 is fixedly mounted on the synchronous belt 220, the cylinder mounting plate 230 moves along with the synchronous belt 220 on the sliding rail 240 at the lower end, the telescopic cylinder 231 is mounted at the upper end of the cylinder mounting plate, the front end of the telescopic cylinder 231 is connected with the clamping jaw 232, the clamping jaw 232 clamps the mold frame 300 to move, the design of the structure is that when the sampling tube vacuumization is finished, the telescopic cylinder 231 pushes the clamping jaw 232 out of a distance to clamp the mold frame 300, at the moment, the servo motor 210 is opened to drive the synchronous belt 220 to rotate, the cylinder mounting plate 230 moves along with the synchronous belt 220, meanwhile, the clamping jaw 232 drives the mold frame 300 to move in the same direction, after reaching a designated position, the telescopic cylinder 231 withdraws the clamping jaw 232, the synchronous belt 220 reversely rotates, the cylinder mounting plate 230 resets to move the lower wheel 300, the clamping jaw 232 moves automatically, and the efficiency of production is improved.

The air cylinder mounting plate 230 of this embodiment is provided with the sensing piece 233, the sensing piece 233 and the sensor 234 generate an electric signal to control the rotation of the servo motor 210 when contacting, the sensor 234 is arranged at two ends of the sliding rail 240, when the sensing piece 233 is in the sensor 234 at one end of the initial position, the servo motor 210 stops rotating, the vacuum chamber 410 is opened after the end of vacuumizing, the telescopic air cylinder 231 stretches out of the clamping jaw 232 to clamp the die carrier 300, the servo motor 210 starts to control the rotation of the synchronous belt 220 at this moment, the air cylinder mounting plate 230 starts to move, when the sensing piece 233 follows the air cylinder mounting plate 230 to reach the designated position and then touches the sensor 234 at the other end, the clamping jaw 232 is retracted, the servo motor 210 starts to control the synchronous belt 220 to reversely rotate, so that the air cylinder mounting plate 230 moves to the initial position, the stop position of the air cylinder mounting plate 230 is determined through the cooperation of the sensing piece 233 and the sensor 234, the precision and the direction of the die carrier 300 are ensured, and the production efficiency is improved.

The barrier strips 111 are installed on the lower bracket 110 of the bracket device 100 of the embodiment, the barrier strips 111 are positioned at two sides of the die frame 300, four supporting columns 130 are arranged between the lower bracket 110 and the upper bracket 120, a limiter 131 is installed on each supporting column 130, the limiter 131 controls the descending displacement distance of the pushing device 430, the pushing device 430 is installed on the upper bracket 120 to drive the vacuum chamber 410 to move up and down, the design of the structure is convenient for the die frame 300 to move between the barrier strips 111 at two sides, the stability is improved when the clamping jaw 232 moves the die frame 300, the installation of the limiter 131 is used for controlling the pushing device 430, the descending distance of the vacuum chamber 410 is controlled to achieve the condition of sealing in the vacuum chamber 410, and meanwhile, the device improves the moving stability of the die frame 300 and improves the vacuum pumping precision in the vacuum chamber 410.

The foregoing examples merely illustrate certain embodiments of the utility model and are described in more detail and are not to be construed as limiting the scope of the utility model; it should be noted that it is possible for a person skilled in the art to make several variants and modifications without departing from the concept of the utility model, all of which fall within the scope of protection of the utility model; accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. The utility model provides a gas sampling pipe evacuating device which characterized in that: comprises a bracket device (100), a lower bracket (110) of the bracket device is provided with a die shifting device (200), the die shifting device (200) clamps and moves the die holder (300), an upper bracket (120) of the bracket device is provided with a vacuumizing device (400), four corners of a vacuum chamber (410) of the vacuumizing device (400) are provided with guide posts (420), the center position of the upper end surface of the vacuumizing device is connected with a pushing device (430), the guide posts (420) penetrate through guide sleeves (121) at corresponding positions, the guide sleeves (121) penetrate through and are fixed on the upper bracket (120), the upper end surface of the vacuum chamber (410) is provided with a vacuum cylinder (412) and a pressure difference switch (413), the inside of the vacuum chamber is provided with a plunger plate (411) communicated with the vacuum cylinder (412), the side surface of the vacuum chamber is provided with a bent pipe (414), the lower end surface of the pushing device (430) pushes down the vacuum chamber (410) to enable the vacuum chamber (410) to hold the die holder (300), the lower end surface of the vacuum chamber (410) is tightly attached to the lower bracket (415) and the inner surface of the vacuum chamber (110) is tightly sealed by the sealing cover (415), the cap is pressed by the plugging plate (411) under the pushing of the vacuum cylinder (412) to seal the sampling tube.

2. The gas sampling tube evacuation device of claim 1, wherein: a spring guide pillar (330) is arranged between an upper template (310) and a lower template (320) of the die carrier (300), and a plurality of groups of through holes (340) corresponding to the lower template (320) are designed on the upper template (310) for installing sampling pipes.

3. The gas sampling tube evacuation device of claim 1, wherein: the servo motor (210) on the mould moving device (200) drives the synchronous belt (220) to rotate, an air cylinder mounting plate (230) is fixedly mounted on the synchronous belt (220), the air cylinder mounting plate (230) moves along with the synchronous belt (220) on a sliding rail (240) at the lower end, a telescopic air cylinder (231) is mounted at the upper end of the air cylinder, a clamping jaw (232) is connected to the front end of the telescopic air cylinder (231), and the clamping jaw (232) clamps and moves the mould (300).

4. A gas sampling tube evacuation device according to claim 3, wherein: the cylinder mounting plate (230) is provided with a sensing piece (233), an electric signal is generated when the sensing piece (233) is contacted with the sensor (234) to control the rotation of the servo motor (210), and the sensor (234) is arranged at two ends of the sliding rail (240).

5. The gas sampling tube evacuation device of claim 1, wherein: the support device is characterized in that a barrier strip (111) is arranged on a lower support (110) of the support device (100), the barrier strip (111) is located on two sides of a die carrier (300), four support columns (130) are arranged between the lower support (110) and an upper support (120), a limiter (131) is arranged on each support column (130), the limiter (131) controls the descending displacement distance of a pushing device (430), and the pushing device (430) is arranged on the upper support (120) to drive a vacuum chamber (410) to move up and down.