CN213658349U

CN213658349U - Automatic sampling device of dangerous chemicals

Info

Publication number: CN213658349U
Application number: CN202022882683.1U
Authority: CN
Inventors: 吴晨
Original assignee: Az Armaturen Taicang Co ltd
Current assignee: Az Armaturen Taicang Co ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-07-09
Anticipated expiration: 2030-12-03

Abstract

The utility model discloses an automatic sampling device of dangerous chemicals, including the sample valve, and a support, the sampling case, the connecting pipe, the sample needle file, the safety cover, sample bottle and elevating system, the sample case sets up on the support, the sample valve sets up in the sampling case top, the fixed top that sets up in the inside of sampling case of sample needle file, set up sample needle and air discharge needle on the sample needle file, the sample needle passes through the connecting pipe and is connected with the sample valve, the air discharge needle accesss to the lateral wall of sample needle file, elevating system sets up on the support, the safety cover sets up in the sample case, and fixed the setting is on elevating system, utilize the vertical removal of elevating system drive safety cover, the sample bottle is placed in the safety cover, and be located the below of sample needle file. The utility model takes a sample for dangerous chemicals in a sealing way through the sampling box, thus reducing the leakage of dangerous chemicals and reducing the damage to operators; and simple structure, sample convenient and fast, safe and reliable.

Description

Automatic sampling device of dangerous chemicals

Technical Field

The utility model relates to an automatic sampling device of hazardous chemicals.

Background

Sampling refers to the separation of a portion of a representative material or product as a test object, this object being referred to as a sample, and this separation process being referred to as sampling (process). The test may be a measurement of a physical property, an analysis of a chemical composition, a detection of a property of a microorganism, etc., typically for the purpose of understanding the entire subject, confirming a quality requirement, substance confirmation or judgment. The sampling valve is one of valves, and is mainly used for intercepting a medium sample in a pipeline, and the sampling valve is opened or closed by rotating a passage port on a cock to be the same as or separate from a passage port on a valve body. The novel vacuum pump has the advantages of being high in safety performance of structural design, rapid in opening and closing, free of cavities, good in sealing performance and the like, and can be widely applied to environments with severe working conditions such as petroleum, petrifaction, chlor-alkali, medicine, food, easiness in crystallization and particles.

Particularly, in chemical samples, if the sample liquid leaks or releases the skin, the skin may be ulcerated, so that a safe and non-contact sampling device is needed.

SUMMERY OF THE UTILITY MODEL

Aiming at overcoming the defects of the prior art, the utility model discloses a dangerous chemical automatic sampling device, which comprises a sampling valve, a bracket, a sampling box, a connecting pipe, a sampling needle seat, a protective cover, a sampling bottle and a lifting mechanism, wherein the sampling box is arranged on the bracket, the sampling valve is arranged above the sampling box, the sampling needle seat is fixedly arranged at the top of the inner part of the sampling box, the sampling needle seat is provided with a sampling needle and an exhaust needle, the sampling needle is connected with the sampling valve through the connecting pipe, the exhaust needle is communicated with the side wall of the sampling needle seat, the lifting mechanism is arranged on the bracket, the protective cover is arranged in the sampling box and is fixedly arranged on the lifting mechanism, and the lifting mechanism is used for driving the protective cover to vertically move, the sampling bottle is placed in the protective cover and is located below the sampling needle seat.

Furthermore, a protective cover is arranged on the protective cover, the protective cover is in threaded fit with the protective cover, an inclined plane is arranged between the bottle body and the bottle mouth of the sampling bottle, and an inclined plane matched with the sampling bottle is arranged in the protective cover.

Further, the bottle mouth of the sampling bottle is provided with a bottle cap, a sealing gasket is arranged in the middle of the bottle cap, and the bottle cap is in threaded fit with the sampling bottle.

Furthermore, a protective cover is fixedly arranged on the sampling needle seat; when sampling, the protective cover is buckled on the sampling bottle.

Further, the sampling box comprises a box body and a box door, wherein the box body and the box door are hinged and locked through a magnetic lock.

Further, set up the response piece on the safety cover, set up limit switch in the sample case, limit switch respectively with the extreme position that the safety cover reciprocated corresponds.

The sampling valve comprises a valve body, a support valve cover, a plunger, a connecting piece and a driving mechanism, wherein the valve body is arranged on the left side of the support valve cover through a bolt, the driving mechanism is arranged on the right side of the support valve cover, the valve body is axially provided with a through channel, a sampling opening is formed in the side wall of the valve body, the plunger is arranged in the channel in a sliding mode, one end of the plunger is connected with the driving mechanism through the connecting piece, and the driving mechanism is used for driving the plunger to move axially; in the initial position, the plunger protrudes from the valve body.

Further, the sampling valve still includes sealed pad, pressure cover and gland, the pressure cover sets up in the passageway, sealed pad sets up the both ends of pressing the cover, the gland sets up the right port of passageway utilizes the support valve gap passes through the gland compresses tightly sealed pad.

Further, the sampling valve further comprises a limiting bolt, and the limiting bolt is arranged on the support valve cover and acts on the valve body.

Furthermore, the connecting piece includes adapter sleeve and clamp plate, set up the installation cover on the adapter sleeve, the installation cover through the bolt with the plunger is connected, the clamp plate through the bolt with adapter sleeve presss from both sides the fastening and fixes, with actuating mechanism is fixed.

The utility model discloses the beneficial effect who gains:

the utility model takes a sample for dangerous chemicals in a sealing way through the sampling box, thus reducing the leakage of dangerous chemicals and reducing the damage to operators; and simple structure, sample convenient and fast, safe and reliable. The sampling bottle is completely fixed by the protective cover and the protective cover, so that the collision of the sampling bottle in the sampling process and after the sampling is finished is avoided. The sampling valve is matched with the plunger through the valve body, and sample liquid in the pipeline is sucked into the valve body through negative pressure so as to realize a sampling function. At the initial position, the plunger protrudes out of the valve body, so that the real situation that the sample liquid cannot reflect the liquid in the pipeline due to dead zones is avoided. Through adjusting bolt's setting, increased sealed life who fills up.

Drawings

Fig. 1 is a schematic perspective view of an automatic sampling device for hazardous chemicals according to the present invention;

fig. 2 is a top view of an automatic sampling device for hazardous chemicals according to the present invention;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is an enlarged view of A in FIG. 3;

FIG. 5 is a schematic view of the protective cover and the protective cover;

FIG. 6 is a cross-sectional view B-B of FIG. 3;

FIG. 7 is a schematic perspective view of a sampling valve;

FIG. 8 is a top view of the sampling valve;

FIG. 9 is a cross-sectional view A-A of FIG. 8;

FIG. 10 is a schematic view of the structure of the connector;

the reference numbers are as follows:

1. the sampling valve, 2, a bracket, 3, a sampling box, 4, a connecting pipe, 5, a sampling needle seat, 6, a protective cover, 7, a sampling bottle, 8, a lifting mechanism, 11, a valve body, 12, a bracket valve cover, 13, a plunger, 14, a connecting piece, 15, a driving mechanism, 16, a sealing gasket, 17, a pressing sleeve, 18, a pressing cover, 19, an adjusting bolt, 20, a mounting bracket, 21, a travel switch, 31, a box body, 32, a box door, 33, a magnetic lock, 34, a limit switch, 111, a sampling opening, 141, a connecting sleeve, 142, a pressing plate, 143, a mounting sleeve, 144, a switch deflector rod, 201, an adjusting groove, 51, a sampling needle, 52, an exhaust needle, 53, a protective cover, 61, a protective cover, 62, an inclined plane, 63, an induction sheet, 71, a bottle cover, 72 and a.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

The utility model provides an automatic sampling device of dangerous chemicals, as shown in fig. 1-6, including sample valve 1, support 2, sampling case 3, connecting pipe 4, sample needle file 5, safety cover 6, sampling bottle 7 and elevating system 8, sampling case 3 sets up on support 2, sample valve 1 sets up in sampling case 3 top, sample needle file 5 is fixed to be set up at the top of the inside of sampling case 3, set up sample needle 51 and exhaust needle 52 on the sample needle file 5, sample needle 51 is connected with sample valve 1 through connecting pipe 4, exhaust needle 52 accesss to the lateral wall of sample needle file 5, elevating system 8 sets up on support 2, safety cover 6 sets up in sampling case 3, and fixed the setting is on elevating system 8, utilize 8 vertical removal of elevating system drive safety cover 6, sampling bottle 7 places in safety cover 6, and is located the below of sample needle file 5. Wherein, the lifting mechanism 8 can be a cylinder.

In one embodiment, as shown in fig. 1-6, a protective cap 61 is disposed on the protective cap 6, the protective cap 61 is screwed with the protective cap 6, a slope 62 is disposed between the body and the mouth of the sampling bottle 7, and a slope engaged with the sampling bottle 7 is disposed in the protective cap 61. When the sampling bottle 7 is put into the protective cover 6, the protective cover 61 is covered and the protective cover 61 is rotated so that the protective cover 61 is fixed with the protective cover 6, and the sampling bottle 7 is positioned and fixed by the inclined surface fit.

In one embodiment, as shown in fig. 1-6, a bottle cap 71 is disposed on the mouth of the sampling bottle 7, a sealing gasket 72 is disposed in the middle of the bottle cap 71, and the bottle cap 71 is in threaded engagement with the sampling bottle 7. When sampling, the sampling needle 51 and the exhaust needle 52 penetrate through the sealing gasket 72 and extend into the sampling bottle 7, and the sealing gasket 72 is hermetically connected with the sampling needle 51 and the exhaust needle 52 by utilizing the characteristics of the sealing gasket 72, so that dangerous chemicals are prevented from leaking during sampling.

In one embodiment, as shown in fig. 1 to 6, a protecting cover 53 is fixedly arranged on the sampling needle holder 5; during sampling, the protecting cover 53 is buckled on the sampling bottle 7.

In one embodiment, as shown in fig. 1-6, sampling box 3 includes a box body 31 and a door 32, with box body 31 and door 32 hinged and locked by a magnetic lock 33. Preferably, can also install a door switch on the sample case 3, and then detect whether sample case door 3 is in the closed condition, prevent that the staff from continuing the sample when sample case 3 opens.

In one embodiment, as shown in fig. 1 to 6, the protective cover 6 is provided with a sensing piece 63, and the sampling box 3 is provided with a limit switch 34, wherein the limit switches 34 respectively correspond to the limit positions of the up-and-down movement of the protective cover 6.

In one embodiment, as shown in fig. 1-9, the sampling valve 1 includes a valve body 11, a bracket valve cover 12, a plunger 13, a connecting member 14 and a driving mechanism 15, the valve body 11 is disposed on the left side of the bracket valve cover 12 through bolts, the driving mechanism 15 is disposed on the right side of the bracket valve cover 12, the valve body 11 is axially disposed with a through channel, and a sampling port 111 is opened on the side wall thereof, the plunger 13 is slidably disposed in the channel, and one end thereof is connected to the driving mechanism 15 through the connecting member 14, and the driving mechanism 15 drives the plunger 13 to axially move; in the initial position, the plunger 13 protrudes from the valve body 11. When the sampling valve is used, the valve body 11 is connected with a target pipeline through a flange, the protruding length of the plunger 13 is the same as the dead zone length of the target pipeline, and liquid in the dead zone cannot reflect the state of liquid in the current pipeline, so that sample liquid in the dead zone is discharged into the pipeline through the plunger 13, the plunger 13 is driven to move in the reverse direction through the driving mechanism 15, and the liquid in the pipeline is sucked into the valve body 11 and flows out through the sampling port 111.

In one embodiment, as shown in fig. 1-9, the sampling valve 1 further comprises a sealing gasket 16, a pressing sleeve 17 and a pressing cover 18, the pressing sleeve 17 is arranged in the channel, the sealing gaskets 16 are arranged at two ends of the pressing sleeve 17, the pressing sleeve 17 is sealed with the inner wall of the valve body 11 through the sealing gaskets 16, when the sampling is not carried out, the plunger 13 protrudes out of the valve body 11, and at the moment, the sample liquid in the pipeline is prevented from flowing into the valve body 11 from a gap through the sealing gasket 16 at the left side; when sampling, the right gasket 16 seals the plunger 13, thereby preventing the sample liquid from flowing out of the other end of the valve body 11. A gland 18 is provided at the right end of the passage and the gasket 16 is compressed by the gland 18 using the holder valve cover 12. Thereby ensuring the sealing effect of the gasket 16.

In the above embodiment, as shown in fig. 1 to 9, the sampling valve 1 further includes a limit bolt 19, and specifically, the limit bolt 19 is respectively disposed on both sides of the bracket valve cover 12, and the end of the limit bolt acts on the valve body 11. The valve body 11 and the support valve cover 12 are fixedly connected through bolts, so that the distance between the two is adjustable, and the distance is limited through the extending distance of the adjusting bolt 19. The purpose of this is to control the distance that the gland 18 extends into the valve body 11 and thus the degree of compression of the gasket 16. After long-term use, the spacing between the valve body 11 and the bracket valve cover 12 is reduced through the limiting bolt 19, so that the gland 18 compresses the sealing gasket 16 more, and the service life of the sealing gasket 16 is prolonged.

In the above embodiment, as shown in fig. 1 to 9, the connecting member 14 includes a connecting sleeve 141 and a pressing plate 142, the connecting sleeve 141 is provided with a mounting sleeve 143, the plunger 13 is inserted into the mounting sleeve 143, and the mounting sleeve 143 and the plunger 13 are connected by a pin. The pressure plate 142 is clamped and fixed to the connecting sleeve 141 by bolts to be fixed to the driving mechanism 15.

In the above embodiment, as shown in fig. 1 to 9, the mounting bracket 20 is disposed on the bracket valve cover 12, two adjusting grooves 201 are disposed on the mounting bracket 20 in parallel up and down, two travel switches 21 are disposed on the adjusting grooves 201, and the distance between the two travel switches 21 is realized by the adjusting grooves 201, so as to control the left and right limit positions of the axial movement of the plunger 13. The connecting piece 14 is provided with a switch shift lever 144, and the switch shift lever 144 is arranged between the travel switches 21.

Wherein the driving mechanism 15 may be a cylinder.

When the utility model is used, as shown in fig. 1-9, the valve body 11 is connected with a target pipeline, and the plunger 13 protrudes out of the valve body 11 at the initial position and extends into the target pipeline. The sampling box 3 is opened and the sampling bottle 7 is closed after being filled. The sampling bottle 7 is driven to move upwards by the lifting mechanism 8 until the limit switch 34 above senses the sensing piece 63, and then the driving is stopped. At this time, the sampling needle 51 and the air-bleeding needle 52 are inserted into the sampling bottle. The plunger 13 is driven by the driving mechanism 15 to move axially, so that the liquid in the pipeline is sucked into the valve body 11 and flows out of the sampling port. Flows into the sampling flask 7 through the connection tube 4, and the gas in the sampling flask 7 is discharged through the gas discharge needle 52. After the completion, 8 drive sampling bottle 7 of elevating system move down, open sampling case 3 after take out sampling bottle 7 can. Due to the arrangement of the sealing gasket 72, after the sampling needle 51 and the exhaust needle 52 are pulled out, the sampling bottle 7 is still sealed and filled, and the non-volatilization of the sample liquid is ensured.

The above are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; the scope of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications and equivalent arrangements as is within the spirit and scope of the present invention.

Claims

1. The utility model provides an automatic sampling device of dangerous chemicals, its characterized in that, includes sampling valve, support, sampling case, connecting pipe, sample needle file, safety cover, sampling bottle and elevating system, the sampling case sets up on the support, the sampling valve sets up sampling case top, the fixed setting of sample needle file is in the top of the inside of sampling case, set up sample needle and exhaust needle on the sample needle file, the sample needle passes through the connecting pipe with the sampling valve is connected, the exhaust needle accesss to the lateral wall of sample needle file, elevating system sets up on the support, the safety cover sets up in the sampling case, and fixed setting is in elevating system is last, utilizes the elevating system drive the vertical removal of safety cover, the sampling bottle is placed in the safety cover, and is located the below of sample needle file.

2. The automatic sampling device for dangerous chemicals according to claim 1, wherein a protective cover is provided on the protective cover, the protective cover is in threaded fit with the protective cover, an inclined surface is provided between the body and the mouth of the sampling bottle, and an inclined surface is provided in the protective cover to fit with the sampling bottle.

3. The automatic sampling device for dangerous chemicals according to claim 1, wherein a bottle cap is arranged at the mouth of the sampling bottle, a sealing gasket is arranged in the middle of the bottle cap, and the bottle cap is in threaded fit with the sampling bottle.

4. The automatic sampling device for dangerous chemicals according to claim 1, wherein a protecting cover is fixedly arranged on the sampling needle seat; when sampling, the protective cover is buckled on the sampling bottle.

5. The automatic sampling device for dangerous chemicals of claim 1, wherein the sampling box comprises a box body and a box door, the box body and the box door are hinged and locked by a magnetic lock.

6. The automatic sampling device for dangerous chemicals according to claim 1, wherein a sensing piece is arranged on the protective cover, and limit switches are arranged in the sampling box, and the limit switches respectively correspond to the limit positions of the protective cover in the up-and-down movement.

7. The automatic sampling device for dangerous chemicals according to claim 1, wherein the sampling valve comprises a valve body, a bracket valve cover, a plunger, a connecting piece and a driving mechanism, the valve body is arranged on the left side of the bracket valve cover through a bolt, the driving mechanism is arranged on the right side of the bracket valve cover, the valve body is axially provided with a through channel, a sampling opening is formed in the side wall of the valve body, the plunger is slidably arranged in the channel, one end of the plunger is connected with the driving mechanism through the connecting piece, and the plunger is driven to axially move by the driving mechanism; in the initial position, the plunger protrudes from the valve body.

8. The automatic sampling device for dangerous chemicals according to claim 7, wherein the sampling valve further comprises a sealing gasket, a pressing sleeve and a pressing cover, the pressing sleeve is arranged in the channel, the sealing gasket is arranged at two ends of the pressing sleeve, the pressing cover is arranged at the right port of the channel, and the sealing gasket is pressed through the pressing cover by the support valve cover.

9. The automatic sampling device for dangerous chemicals according to claim 7, wherein said sampling valve further comprises a limit bolt, said limit bolt is arranged on said bracket valve cover and acts on said valve body.

10. The automatic sampling device for dangerous chemicals according to claim 7, wherein the connecting piece comprises a connecting sleeve and a pressing plate, a mounting sleeve is arranged on the connecting sleeve, the mounting sleeve is connected with the plunger through a plug pin, and the pressing plate is clamped and fixed with the connecting sleeve through a bolt so as to be fixed with the driving mechanism.