CN220136731U

CN220136731U - Liquid sampling device

Info

Publication number: CN220136731U
Application number: CN202320662394.1U
Authority: CN
Inventors: 周调杨
Original assignee: Hubei Orgsyn Chemical Co ltd
Current assignee: Hubei Orgsyn Chemical Co ltd
Priority date: 2023-03-30
Filing date: 2023-03-30
Publication date: 2023-12-05
Anticipated expiration: 2033-03-30

Abstract

The utility model relates to a liquid sampling device, which comprises a sampling bottle, wherein the top of the sampling bottle is fixedly communicated with a third connecting pipe, the top of the third connecting pipe is in threaded connection with a sampling pipe, a second filter screen is arranged in one end of the third connecting pipe, which is close to the sampling pipe, the bottom of one end of the sampling pipe is in threaded connection with a sampling head, and a first filter screen is arranged in one end of the sampling pipe, which is close to the sampling head.

Description

Liquid sampling device

Technical Field

The utility model relates to the technical field of liquid sampling, in particular to a liquid sampling device for chemical production.

Background

Chemical industry is an abbreviation for "chemical process", "chemical industry", "chemical engineering", etc. All techniques for changing the composition, structure or synthesizing new substances by chemical methods belong to chemical production techniques, namely chemical processes, and the obtained products are called chemicals or chemical products. Initially, the production of such products was performed by hand workshops, which later evolved into factories, and developed a specific production industry, namely the chemical industry, in which chemical production processes, it was often necessary to sample chemical liquids, i.e. to sample individuals or samples from the population, i.e. to test or observe the population, and to sample the raw materials, semi-finished products and finished products of the chemical products for later study use.

The Chinese patent discloses a liquid sampling device, the authorized bulletin number is CN 215953102U, the novel device is provided with a cylinder body and a sampling bottle; the sampling tube is connected with one end of the feeding hole, the other end of the sampling tube is placed in the target sample liquid, the operation port of the tube body is connected with the air suction port, the device is communicated, the motor is controlled to work through the control button, the piston installed in the tube body is driven by the screw rod to slide upwards, the pressure below the piston is reduced, the liquid in the target sample liquid enters the sampling bottle along the sampling tube, the new sampling bottle and the sampling tube are replaced when the next sampling is carried out, and the contact between the sampling device and the target sample liquid is reduced. When carrying out the liquid sample, because there is not the filter screen in the sampling tube to filter the impurity in the liquid, liquid when passing through the sampling tube, impurity in the liquid can cause the sampling tube to block up, need dismantle the sampling tube clearance and stop up, influence liquid sampling rate, after the sample finishes, need carry out impurity filtration to the liquid after the sample again, the step is comparatively loaded down with trivial details, influences the efficiency of sample.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a liquid sampling device which is provided with multiple filters, is convenient for disassembling, replacing and cleaning a filter screen, and solves the problems that impurities block a sampling tube and liquid is required to be filtered again in the sampling process.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a liquid sampling device, including the exhaust tube, the fixed intercommunication in bottom of exhaust tube has first connecting pipe, the one end threaded connection that the exhaust tube was kept away from to first connecting pipe has the second connecting pipe, the fixed intercommunication in bottom of second connecting pipe has the sample bottle, the fixed intercommunication in top of sample bottle has the third connecting pipe, the top threaded connection of third connecting pipe has the sampling tube, the second external screw thread has been seted up to the top outer wall of third connecting pipe, the outer wall cover of third connecting pipe has the second sealed pad, the sampling tube is close to the one end inner wall of third connecting pipe and has been seted up with second external screw thread assorted second internal screw thread, the one end inside that the third connecting pipe is close to the sampling tube has been placed the second filter screen, the first external screw thread has been seted up to the one end outer wall of third connecting pipe is kept away from to the sampling tube, the outer wall cover of first external screw thread is equipped with first sealed pad, the one end bottom threaded connection that the third connecting pipe was kept away from to the sampling tube has the sampling head, the one end inner wall that the sampling head is close to the sampling tube has seted up with first external screw thread assorted first internal screw thread, the one end inside that is close to the sampling head has placed first filter screen.

Further, outer wall fixed mounting of sample bottle has a plurality of fixed blocks, and the arc wall has been seted up to the inside of fixed block, and the outside fixedly connected with stopper in arc wall, the diameter in arc wall is the same with the external diameter of sampling tube, and the stopper is the elastic block, through the inside arc wall of seting up of fixed block, the placing of sampling tube of being convenient for prevents that the sampling tube from taking place to rock at liquid sampling in-process, influences the sample.

Further, the air vent has been seted up at the top of exhaust tube, and the top slip through connection of exhaust tube has the connecting rod, and the top fixedly connected with push-and-pull handle of connecting rod, the one end fixedly connected with connecting block of push-and-pull handle is kept away from to the connecting rod, and the bottom fixedly connected with piston of connecting block drives the connecting rod through pulling push-and-pull handle and removes, and fixed block and piston form the negative pressure in the messenger's sample bottle under the drive of connecting rod, conveniently extract liquid.

Further, the volume of the exhaust tube is larger than that of the sampling bottle, and the piston is in contact with the inner wall of the exhaust tube.

Further, first filter screen and second filter screen are the metal material, and the aperture of first filter screen is greater than the aperture of second filter screen, and the impurity of great granule in the liquid can be filtered to first filter screen, and the second filter screen carries out secondary filtration to the liquid that has filtered, avoids impurity in the liquid to get into in the sample bottle through the sampling tube.

Further, one end fixedly connected with of first filter screen leans against with the first spacing ring of sampling tube external diameter size the same, and the first filter screen leans against with the inner wall of sampling tube, and the one end fixedly connected with of second filter screen leans against with the second filter screen of third connecting pipe external diameter size the same, and the second spacing ring leans against with the inner wall of third connecting pipe, is convenient for fix first filter screen and second filter screen, can carry out effectual filtration to the liquid of flow sampling tube.

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

according to the utility model, the sampling tube is arranged, the sampling head is placed in liquid to be sampled in the using process, the push-pull handle is pulled, negative pressure is formed in the sampling bottle, under the action of pressure, the liquid enters the sampling tube from the sampling head through the first filter screen, the first filter screen filters impurities in the liquid for the first time, the extracted liquid enters the sampling bottle from the sampling tube through the second filter screen, the second filter screen filters impurities in the liquid for the second time, the impurities in the liquid are prevented from entering the sampling bottle, the step of filtering the sampled liquid is avoided, after the sampling tube is used for a long time, the sampling head and the third connecting tube are opened, and the first filter screen and the second filter screen are cleaned and replaced, so that the filter screen is prevented from being blocked by the impurities in the liquid, and the sampling rate is prevented from being influenced.

According to the utility model, the fixing block is arranged, the arc-shaped groove with the same diameter as the sampling tube is formed in the fixing block, the limiting block is fixedly connected in the arc-shaped groove, the sampling tube is clamped into the arc-shaped groove of the fixing block in the use process, the limiting block is used for fixing the sampling tube, the sampling tube is conveniently placed, and meanwhile, the sampling tube is prevented from shaking in the liquid sampling process.

Drawings

FIG. 1 is a schematic diagram of a front view of a liquid sampling device according to the present utility model;

FIG. 2 is a front cross-sectional view of an aspiration tube and a sampling tube in a liquid sampling device according to the present utility model;

FIG. 3 is an enlarged view of FIG. 2 at A;

FIG. 4 is an enlarged view at B in FIG. 2;

fig. 5 is a schematic structural view of a fixing block in a liquid sampling device according to the present utility model.

In the figure: 1. an exhaust pipe; 102. a connecting rod; 103. push-pull handle; 104. a connecting block; 105. a piston; 106. a vent hole; 107. a first connection pipe; 2. a sampling tube; 2011. a first gasket; 2012. a first external thread; 2013. a first filter screen; 2014. a first stop collar; 2021. a second internal thread; 2022. a second filter screen; 2023. a second limiting ring; 3. sampling bottle; 301. a fixed block; 302. an arc-shaped groove; 303. a limiting block; 305. a third connection pipe; 306. a second gasket; 307. a second external thread; 308. a second connection pipe; 4. a sampling head; 401. a first internal thread.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 5, a liquid sampling device in this embodiment includes an exhaust tube 1, a first connecting tube 107 is fixedly connected to the bottom of the exhaust tube 1, a second connecting tube 308 is connected to the first connecting tube 107 at an end of the first connecting tube 107 far away from the exhaust tube 1, a sampling bottle 3 is fixedly connected to the bottom of the second connecting tube 308, the volume of the exhaust tube 1 is larger than that of the sampling bottle 3, a third connecting tube 305 is fixedly connected to the top of the sampling bottle 3, a sampling tube 2 is connected to the top of the third connecting tube 305 through a screw thread, a second external screw thread 307 is provided on the top outer wall of the third connecting tube 305, a second internal screw thread 2021 matched with the second external screw thread 307 is provided on the inner wall of one end of the third connecting tube 305 near the sampling tube 2, a second filter screen 2022 is disposed inside one end of the third connecting tube 305 near the sampling tube 2, a first external screw thread 2012 is provided on the outer wall of one end of the sampling tube 2 far away from the third connecting tube 305, a first external screw thread 2011 is provided on the outer wall of the first external screw thread 2012, a first external screw thread 2011 is provided on the outer wall of the one end of the sampling tube 2 far away from the third connecting tube 305, a sampling head 4 is connected to the inner wall of the sampling tube 4 near the first filter screen 401, and the sampling head is provided near the first filter screen 401 is matched with the first filter screen 401, and the first external screw thread 2012 is disposed near the first inner end 4.

The outer wall fixed mounting of sample bottle 3 has a plurality of fixed blocks 301, and arc wall 302 has been seted up to the inside of fixed block 301, and the outside fixedly connected with stopper 303 of arc wall 302, the diameter of arc wall 302 is the same with the external diameter of sampling tube 2, and stopper 303 is the elastic block, through the inside arc wall 302 of seting up of fixed block 301, the placing of sampling tube 2 of being convenient for prevents that sampling tube 2 from taking place to rock at liquid sampling in-process, influences the sample.

The air vent 106 has been seted up at the top of exhaust tube 1, the top slip through connection of exhaust tube 1 has connecting rod 102, the top fixedly connected with push-and-pull handle 103 of connecting rod 102, the one end fixedly connected with connecting block 104 of push-and-pull handle 103 is kept away from to connecting rod 102, the bottom fixedly connected with piston 105 of connecting block 104, piston 105 is inconsistent with the inner wall of exhaust tube 1, pulling push-and-pull handle 103 drives connecting rod 102 and removes, connecting block 104 and piston 105 upwards move under the drive of connecting rod 102, make the interior negative pressure that forms of sample bottle 3, conveniently extract liquid.

The first filter screen 2013 and the second filter screen 2022 are both made of metal, the aperture of the first filter screen 2013 is larger than that of the second filter screen 2022, the first filter screen 2013 can filter impurities with larger particles in liquid, the second filter screen 2022 carries out secondary filtration on the filtered liquid, the impurities in the liquid are prevented from entering the sampling bottle through the sampling tube 2, one end of the first filter screen 2013 is fixedly connected with a first limiting ring 2014 with the same outer diameter as the sampling tube 2, the first filter screen 2013 abuts against the inner wall of the sampling tube 2, one end of the second filter screen 2022 is fixedly connected with a second filter screen 2022 with the same outer diameter as the third connecting tube 305, the second limiting ring 2023 abuts against the inner wall of the third connecting tube 305, the first filter screen 2013 and the second filter screen 2022 are convenient to fix, and the liquid flowing through the sampling tube 2 can be effectively filtered.

The working principle of the embodiment is as follows:

before liquid sampling is carried out, the sampling tube 2 is placed in the arc-shaped groove 302, the limiting block 303 on the arc-shaped groove 302 can fix the sampling tube 2, the sampling tube 2 is prevented from shaking in the sampling process, the sampling progress is influenced, then the sampling head 4 is placed in liquid to be sampled, the push-pull handle 103 is pulled, the push-pull handle 103 drives the connecting rod 102 to move upwards, the connecting rod 102 drives the connecting block 104 to move upwards, the connecting block 104 drives the piston 105 to move upwards, gas above the piston 105 in the exhaust tube 1 is discharged through the vent hole 106, negative pressure is formed in the sampling bottle 3 in threaded connection with the exhaust tube 1, liquid enters the sampling tube 2 from the sampling head 4 under the action of pressure, the liquid is filtered for the first time through the first filter screen 2013, larger impurities in the liquid are removed, the second filter screen 2022 can be passed through before the liquid enters the sampling bottle 3, the second filter screen 2022 carries out secondary filtration on the liquid, the step of carrying out impurity filtration on the liquid after the sampling is prevented, after the sampling is finished, the sampling tube 2 and the sampling head 2014 can be opened, the first filter screen 2023 and the second filter screen 2022 are replaced, the first filter screen is prevented from being changed, and the impurity in the sampling process is prevented from being blocked, and the first filter screen 2013 is cleaned.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A liquid sampling device comprising an extraction tube (1), characterized in that: the bottom of exhaust tube (1) is fixed to be linked together and is had first connecting pipe (107), the one end threaded connection that exhaust tube (1) was kept away from to first connecting pipe (107) has second connecting pipe (308), the one end internal thread that second connecting pipe (308) was kept away from to second connecting pipe (308) is inside to be placed second filter screen (2022), the top fixed intercommunication of sampling bottle (3) has third connecting pipe (305), the top threaded connection of third connecting pipe (305) has sampling pipe (2), second external screw thread (307) have been seted up to the top outer wall of third connecting pipe (305), the outer wall cover of third connecting pipe (305) is equipped with second sealing gasket (306), sampling pipe (2) are close to the one end inner wall of third connecting pipe (305) and have been seted up with second external screw thread (307) assorted second internal thread (2021), the one end inside that third connecting pipe (305) is close to sampling pipe (2) has been placed second filter screen (2022), the one end outer wall that third connecting pipe (2) was kept away from third connecting pipe (305) has first external screw thread (2012), the outer wall cover of first external screw thread (305) has first sealing gasket (2011), sampling pipe (2) has been set up on the outer wall of first external screw thread (305) and has been kept away from the one end inner wall of first connecting pipe (305) and has been close to first external screw thread (2012) of first screw thread (4), a first filter screen (2013) is arranged inside one end of the sampling tube (2) close to the sampling head (4).

2. A liquid sampling device according to claim 1, wherein: the outer wall fixed mounting of sample bottle (3) has a plurality of fixed blocks (301), and arc wall (302) have been seted up to the inside of fixed block (301), and the outside fixedly connected with stopper (303) of arc wall (302), the diameter of arc wall (302) is the same with the external diameter of sampling tube (2), and stopper (303) are the elastic block.

3. A liquid sampling device according to claim 1, wherein: the top of exhaust tube (1) has seted up air vent (106), and the top slip through connection of exhaust tube (1) has connecting rod (102), and the top fixedly connected with push-and-pull handle (103) of connecting rod (102), one end fixedly connected with connecting block (104) that push-and-pull handle (103) were kept away from to connecting rod (102), and the bottom fixedly connected with piston (105) of connecting block (104).

4. A liquid sampling device according to claim 3, wherein: the volume of the exhaust tube (1) is larger than that of the sampling bottle (3), and the piston (105) is in contact with the inner wall of the exhaust tube (1).

5. A liquid sampling device according to claim 1, wherein: the first filter screen (2013) and the second filter screen (2022) are made of metal, and the aperture of the first filter screen (2013) is larger than that of the second filter screen (2022).

6. A liquid sampling device according to claim 1, wherein: one end fixedly connected with of first filter screen (2013) is with first spacing collar (2014) the same with sampling tube (2) external diameter size, and first filter screen (2013) is leaned on with the inner wall of sampling tube (2) in the counterbalance, and one end fixedly connected with of second filter screen (2022) the same with third connecting pipe (305) external diameter size, second spacing collar (2023) is leaned on with the inner wall of third connecting pipe (305) in the counterbalance.