CN212467625U - Oxygen generator capable of rapidly replacing molecular sieve - Google Patents

Oxygen generator capable of rapidly replacing molecular sieve Download PDF

Info

Publication number
CN212467625U
CN212467625U CN202020926988.5U CN202020926988U CN212467625U CN 212467625 U CN212467625 U CN 212467625U CN 202020926988 U CN202020926988 U CN 202020926988U CN 212467625 U CN212467625 U CN 212467625U
Authority
CN
China
Prior art keywords
block
fixedly connected
groove
molecular sieve
baffle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN202020926988.5U
Other languages
Chinese (zh)
Inventor
卢兴堂
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Yingzhan Biological Technology Co ltd
Original Assignee
Guangzhou Yingzhan Biological Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangzhou Yingzhan Biological Technology Co ltd filed Critical Guangzhou Yingzhan Biological Technology Co ltd
Priority to CN202020926988.5U priority Critical patent/CN212467625U/en
Application granted granted Critical
Publication of CN212467625U publication Critical patent/CN212467625U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Separation Of Gases By Adsorption (AREA)

Abstract

The utility model discloses a but oxygenerator of quick replacement molecular sieve, including air compressor, casing and holding vessel, air compressor bottom end fixedly connected with intake pipe, intake pipe bottom and casing top fixed connection, casing bottom fixedly connected with outlet duct, outlet duct bottom and holding vessel top fixed connection, casing top one side fixedly connected with blast pipe. The utility model discloses a fixed block, the movable block, the fixture block, the connecting block, first spring, the second spring, the card post, the stopper, first connecting rod, the cooperation action of second connecting rod and ejector pad, press the press block, drive card post and fixed orifices separation, can open the baffle and change the molecular sieve, cover the baffle after the change is accomplished, the fixture block passes in the fixed orifices again, it is fixed with the baffle, and easy operation avoids needing to open the baffle through twisting the screw with the help of the instrument, and complex operation leads to the molecular sieve to change slowly, and it is troublesome to bring unnecessary.

Description

Oxygen generator capable of rapidly replacing molecular sieve
Technical Field
The utility model relates to an oxygenerator technical field, concretely relates to but oxygenerator of quick replacement molecular sieve.
Background
The molecular sieve oxygen generator uses air as raw material, zeolite molecular sieve as adsorbent, and adopts pressure swing adsorption principle to purify oxygen, and utilizes the selective adsorption of molecular sieve to oxygen to make oxygen and nitrogen separated so as to extract high-purity oxygen.
However, in actual operation, the molecular sieve needs to be replaced frequently, the molecular sieve is often fixed through screws and the like, the screws need to be screwed through tools for disassembly during replacement, and the operation is complex, so that the replacement of the molecular sieve is slow.
Therefore, it is necessary to invent an oxygen generator capable of rapidly replacing molecular sieves to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a but oxygenerator of quick replacement molecular sieve, through the fixed block, the movable block, the fixture block, the connecting block, first spring, the second spring, the card post, the stopper, first connecting rod, the cooperation action of second connecting rod and ejector pad, press the press block, drive card post and fixed orifices separation, can open the baffle and change the molecular sieve, change and cover the baffle after accomplishing, the fixture block passes in the fixed orifices again, it is fixed with the baffle to solve the above-mentioned weak point in the technique.
In order to achieve the above object, the present invention provides the following technical solutions: an oxygen generator capable of quickly replacing a molecular sieve comprises an air compressor, a shell and a storage tank, wherein the bottom end of the air compressor is fixedly connected with an air inlet pipe, the bottom end of the air inlet pipe is fixedly connected with the top end of the shell, the bottom end of the shell is fixedly connected with an air outlet pipe, the bottom end of the air outlet pipe is fixedly connected with the top end of the storage tank, one side of the top end of the shell is fixedly connected with an exhaust pipe, and the top end of the exhaust pipe is;
a cavity is formed in the shell, a sliding groove is formed in the side wall of the cavity, a molecular sieve is connected to the side wall of the sliding groove in a sliding manner, a notch is formed in one side of the shell, which is far away from the exhaust pipe, the notch is matched with the molecular sieve, a baffle is rotatably connected to the side wall of the notch, the baffle is matched with the notch, a fixed block is fixedly connected to one side, which is close to the molecular sieve, of the bottom end of the baffle, a fixed hole is formed in the fixed block, a movable block is fixedly connected to the bottom end of the notch, the section of the movable block is L-shaped, a first groove is formed in one side, which is close to the fixed hole, of the movable block, a clamping block is connected to the side wall of the first groove in a sliding manner, the clamping block is matched with the, a second groove is formed in the middle position of the top end of the first groove, a clamping column is connected to the side wall of the second groove in a sliding mode, a concave hole is formed in the top end of the connecting block and matched with the clamping column, a second spring is fixedly connected to the top end of the clamping column, the top end of the second spring is fixedly connected with the top wall of the second groove, a limiting groove is formed in the clamping column, the top wall of the limiting groove is an inclined surface, a limiting block is connected to the side wall of the limiting groove in a sliding mode, the side of the limiting block, close to the top wall of the limiting groove, is an inclined surface with the same inclination angle, a first connecting rod is fixedly connected to the side, far away from the clamping column, of the limiting block, a first strip-shaped groove is formed in the side of the second groove, the side wall of the first connecting rod, the sliding rail has been seted up to first recess bottom, the activity groove has been seted up to the sliding rail bottom, connecting block bottom fixedly connected with movable rod, the movable rod extends to the activity inslot portion through the sliding rail, movable rod bottom fixedly connected with ejector pad, ejector pad and activity groove lateral wall sliding connection, the second bar groove has been seted up to activity groove one side, second bar groove lateral wall sliding connection has the second connecting rod, second connecting rod one end and ejector pad fixed connection, the second connecting rod extends to the casing surface through second bar groove.
Preferably, one side, far away from the molecular sieve, of the bottom end of the baffle is fixedly connected with a first handle, a hollow groove is formed in the middle of one side, close to the molecular sieve, of the baffle, a second handle is fixedly connected to the middle of one side, close to the baffle, of the molecular sieve, and the second handle is matched with the hollow groove.
Preferably, the bottom end section of the clamping column is arc-shaped, and the section of the concave hole is arc-shaped with the same size.
Preferably, the push block is close to movable rod one end and has been seted up spacing hole, spacing hole lateral wall sliding connection has the gag lever post, the gag lever post is kept away from second bar groove one end and is connected with movable groove lateral wall fixed connection.
Preferably, the two ends of the baffle close to one side of the molecular sieve are fixedly connected with rubber blocks, and the side wall of the sliding groove is also fixedly connected with the rubber blocks.
Preferably, one end, far away from the push block, of the second connecting rod is fixedly connected with a pressing block, the pressing block is made of rubber materials, and one end, far away from the limiting block, of the first connecting rod is also made of rubber materials.
In the technical scheme, the utility model provides a technological effect and advantage:
through the fixed block, the movable block, the fixture block, the connecting block, first spring, the second spring, the card post, the stopper, first connecting rod, the cooperation action of second connecting rod and ejector pad, press and press the briquetting, drive card post and fixed orifices separation, can open the baffle and change the molecular sieve, cover the baffle after the change is accomplished, the fixture block passes from the fixed orifices again, it is fixed with the baffle, therefore, the steam generator is simple in operation, compared with the prior art, avoid needing to dismantle through twisting the screw with the help of the instrument, therefore, the operation is complex, lead to the molecular sieve to change slowly, bring unnecessary trouble.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the connection structure of the baffle plate and the molecular sieve of the present invention;
FIG. 3 is a schematic view of the connection structure of the locking post, the limiting block and the second spring of the present invention;
fig. 4 is an enlarged view of the structure of part a in fig. 1 according to the present invention.
Description of reference numerals:
the device comprises an air compressor 1, a shell 2, a storage tank 3, an exhaust pipe 4, a molecular sieve 5, a baffle 6, a fixed block 7, a movable block 8, a clamping block 9, a connecting block 10, a first spring 11, a clamping column 12, a second spring 13, a limiting groove 14, a limiting block 15, a first connecting rod 16, a movable rod 17, a pushing block 18, a second connecting rod 19, a first handle 20, a second handle 21, a limiting rod 22 and a rubber block 23.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.
The utility model provides an oxygen generator capable of rapidly replacing molecular sieves, as shown in figures 1-4, which comprises an air compressor 1, a shell 2 and a storage tank 3, wherein the bottom end of the air compressor 1 is fixedly connected with an air inlet pipe, the bottom end of the air inlet pipe is fixedly connected with the top end of the shell 2, the bottom end of the shell 2 is fixedly connected with an air outlet pipe, the bottom end of the air outlet pipe is fixedly connected with the top end of the storage tank 3, one side of the top end of the shell 2 is fixedly connected with an exhaust pipe 4, and the top end of the exhaust pipe;
a cavity is formed in the shell 2, a sliding groove is formed in the side wall of the cavity, a molecular sieve 5 is slidably connected to the side wall of the sliding groove, a notch is formed in one side, away from the exhaust pipe 4, of the shell 2, the notch is matched with the molecular sieve 5, a baffle 6 is rotatably connected to the side wall of the notch, the baffle 6 is matched with the notch, a fixed block 7 is fixedly connected to one side, close to the molecular sieve 5, of the bottom end of the baffle 6, a fixed hole is formed in the fixed block 7, a movable block 8 is fixedly connected to the bottom end of the notch, the section of the movable block 8 is L-shaped, a first groove is formed in one side, close to the fixed hole, of the movable block 8, a clamping block 9 is slidably connected to the side wall of the first groove, the clamping block 9 is matched with the fixed hole, one end of the first spring 11, which is far away from the connecting block 10, is fixedly connected with the side wall of the first groove, a second groove is arranged at the middle position of the top end of the first groove, the side wall of the second groove is slidably connected with the clamping column 12, the top end of the connecting block 10 is provided with a concave hole, the concave hole is matched with the clamping column 12, the top end of the clamping column 12 is fixedly connected with a second spring 13, the top end of the second spring 13 is fixedly connected with the top wall of the second groove, the clamping column 12 is internally provided with a limiting groove 14, the top wall of the limiting groove 14 is arranged into an inclined plane, the side wall of the limiting groove 14 is slidably connected with a limiting block 15, one side of the limiting block 15, which is close to the top wall of the limiting groove 14, is provided with an inclined plane with the same inclination angle, one side of the limiting block 15, which is far away from, first connecting rod 16 extends to the 8 outsides of movable block through first bar groove, first connecting rod 16 and fixed block 7 phase-matchs, the slide rail has been seted up to first recess bottom, movable groove has been seted up to the slide rail bottom, connecting block 10 bottom fixedly connected with movable rod 17, movable rod 17 extends to movable inslot portion through the slide rail, 17 bottom fixedly connected with ejector pad 18 of movable rod, ejector pad 18 and movable groove lateral wall sliding connection, the second bar groove has been seted up to movable groove one side, second bar groove lateral wall sliding connection has second connecting rod 19, 19 one end of second connecting rod and ejector pad 18 fixed connection, second connecting rod 19 extends to casing 2 surface through second bar groove.
Further, in the above technical scheme, a first handle 20 is fixedly connected to one side of the bottom end of the baffle 6, which is far away from the molecular sieve 5, so that the baffle 6 can be conveniently opened, a hollow groove is formed in the middle position of one side of the baffle 6, which is close to the molecular sieve 5, a second handle 21 is fixedly connected to the middle position of one side of the molecular sieve 5, which is close to the baffle 6, and the second handle 21 is matched with the hollow groove, so that the molecular sieve 5 can be conveniently pulled out.
Further, in above-mentioned technical scheme, the cross-section of card post 12 bottom is the arc, the shrinkage pool cross-section is the same size arc, avoids card post 12 card to die.
Further, in the above technical scheme, a limiting hole is formed in one end, close to the movable rod 17, of the push block 18, a limiting rod 22 is connected to a side wall of the limiting hole in a sliding mode, one end, far away from the second strip-shaped groove, of the limiting rod 22 is fixedly connected with a side wall of the movable groove, the push block 18 is limited, and stability is improved.
Further, in the above technical solution, both ends of one side of the baffle 6 close to the molecular sieve 5 are fixedly connected with the rubber blocks 23, so as to prevent air from leaking from a gap between the baffle 6 and the molecular sieve 5, and the side wall of the chute is also fixedly connected with the rubber blocks 23, so as to prevent air from leaking from a gap between the chute and the molecular sieve 5.
Further, in the above technical scheme, one end of the second connecting rod 19, which is far away from the pushing block 18, is fixedly connected with a pressing block, the pressing block is made of a rubber material, so that the second connecting rod 19 can be conveniently pressed, and one end of the first connecting rod 16, which is far away from the limiting block 15, is also made of a rubber material, so that the clamping of the clamping column 12 is further avoided.
The implementation mode is specifically as follows: the air compressor 1 compresses air to enter the shell 2, the air is filtered through the molecular sieve 5, the filtered oxygen enters the storage tank 3 to be stored, nitrogen which cannot pass through the molecular sieve 5 is remained at the top end of the cavity, the exhaust pipe 4 is opened, the nitrogen is discharged through the valve, when the molecular sieve 5 needs to be replaced, the second connecting rod 19 is manually pressed towards the direction of the movable groove through the pressing block, the second connecting rod 19 pushes the push block 18 to move towards the direction far away from the second strip-shaped groove, the push block 18 pushes the connecting block 10 to move towards the direction of the first spring 11 through the movable rod 17, the connecting block 10 further drives the clamping block 9 to move towards the direction far away from the fixed block 7 and separate from the fixed hole, meanwhile, the fixed hole moves to the bottom end of the clamping column 12, the clamping column 12 is pushed to abut against the concave hole under the elastic action of the second spring 13, the handle 20 can pull the baffle 6 to turn over, the notch is opened, after the replacement is completed, the baffle 6 is covered, the fixing block 7 abuts against the first connecting rod 16 and pushes the clamping column 12 to move towards the direction of the second spring 13 through the first connecting rod 16, the clamping column 12 is separated from the concave hole, the clamping block 9 is pushed to move towards the direction away from the first spring 11 due to the elastic action of the first spring 11 and penetrates through the fixing hole, the baffle 6 is fixed in position, the pressing block is pressed, the clamping column 12 is driven to be separated from the fixing hole, the baffle 6 can be opened to replace the molecular sieve 5, the baffle 6 is covered after the replacement is completed, the clamping block 9 penetrates through the fixing hole again, the baffle 6 is fixed, the operation is simple, the situation that the screw needs to be screwed by means of a tool to be disassembled is avoided, the operation is complex, the replacement of the molecular sieve 5 is slow, unnecessary troubles are brought, and the slow replacement problem of the molecular sieve is.
This practical theory of operation:
referring to the attached drawings 1-4 of the specification, a second connecting rod 19 is manually pressed towards the direction of a movable groove through a pressing block, the second connecting rod 19 pushes a pushing block 18 to move towards the direction away from a second strip-shaped groove, the pushing block 18 pushes a connecting block 10 to move towards a first spring 11 through a movable rod 17, the connecting block 10 further drives a clamping block 9 to move towards the direction away from a fixed block 7 and separate from a fixed hole, the fixed hole moves to the bottom end of a clamping column 12, the clamping column 12 is pushed to abut against a concave hole under the elastic action of a second spring 13, a baffle 6 can be pulled to turn over through a first handle 20 to open a notch, the second handle 21 is pulled to take out and replace the molecular sieve 5, after replacement is completed, the baffle 6 is covered, the fixed block 7 abuts against the first connecting rod 16 and pushes the clamping column 12 to move towards the direction of a second spring 13 through the first connecting rod 16, the clamping column 12 is separated from the concave hole, the clamping block 9 is pushed to move towards the direction away from the, and passes through the fixing hole to fix the position of the baffle 6.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims (6)

1. The utility model provides a but quick replacement molecular sieve's oxygenerator, includes air compressor (1), casing (2) and holding vessel (3), its characterized in that: the bottom end of the air compressor (1) is fixedly connected with an air inlet pipe, the bottom end of the air inlet pipe is fixedly connected with the top end of the shell (2), the bottom end of the shell (2) is fixedly connected with an air outlet pipe, the bottom end of the air outlet pipe is fixedly connected with the top end of the storage tank (3), one side of the top end of the shell (2) is fixedly connected with an exhaust pipe (4), and the top end of the exhaust pipe (4) is provided with a valve;
the exhaust pipe is characterized in that a cavity is formed in the shell (2), a sliding groove is formed in the side wall of the cavity, a molecular sieve (5) is connected to the side wall of the sliding groove in a sliding mode, a notch is formed in one side, away from the exhaust pipe (4), of the shell (2), the notch is matched with the molecular sieve (5), a baffle (6) is connected to the side wall of the notch in a rotating mode, the baffle (6) is matched with the notch, a fixed block (7) is fixedly connected to one side, close to the molecular sieve (5), of the bottom end of the baffle (6), a fixed hole is formed in the fixed block (7), a movable block (8) is fixedly connected to the bottom end of the notch, the cross section of the movable block (8) is L-shaped, a first groove is formed in one side, close to the fixed hole, of the movable block (8), a clamping block (9) is connected, the clamping device is characterized in that one side, away from the clamping block (9), of the connecting block (10) is fixedly connected with a first spring (11), one end, away from the connecting block (10), of the first spring (11) is fixedly connected with a first groove side wall, a second groove is formed in the middle position of the top end of the first groove, a clamping column (12) is connected with the second groove side wall in a sliding mode, a concave hole is formed in the top end of the connecting block (10) and matched with the clamping column (12), a second spring (13) is fixedly connected with the top end of the clamping column (12), the top end of the second spring (13) is fixedly connected with the top wall of the second groove, a limiting groove (14) is formed in the clamping column (12), the top wall of the limiting groove (14) is arranged to be an inclined plane, the side wall of the limiting groove (14) is connected with a limiting block (15) in a, the limiting block (15) is fixedly connected with a first connecting rod (16) on one side far away from the clamping column (12), a first strip-shaped groove is formed in one side, close to the fixed block (7), of the second groove, the side wall of the first connecting rod (16) is connected with the first strip-shaped groove in a sliding mode, the first connecting rod (16) extends to the outer side of the movable block (8) through the first strip-shaped groove, the first connecting rod (16) is matched with the fixed block (7), a sliding rail is formed in the bottom end of the first groove, a movable groove is formed in the bottom end of the sliding rail, a movable rod (17) is fixedly connected with the bottom end of the connecting block (10), the movable rod (17) extends to the inner portion of the movable groove through the sliding rail, a pushing block (18) is fixedly connected with the bottom end of the movable rod (17), the pushing block (18) is connected with the side wall of the movable groove in a sliding mode, one end of the second connecting rod (19) is fixedly connected with the push block (18), and the second connecting rod (19) extends to the surface of the shell (2) through the second strip-shaped groove.
2. The oxygen generator capable of rapidly replacing molecular sieves of claim 1, wherein: the bottom end of the baffle plate (6) is far away from a first handle (20) fixedly connected with one side of the molecular sieve (5), the baffle plate (6) is close to the middle position of one side of the molecular sieve (5) and is provided with a hollow groove, the molecular sieve (5) is close to a second handle (21) fixedly connected with the middle position of one side of the baffle plate (6), and the second handle (21) is matched with the hollow groove.
3. The oxygen generator capable of rapidly replacing molecular sieves of claim 1, wherein: the bottom end section of the clamping column (12) is arc-shaped, and the section of the concave hole is arc-shaped with the same size.
4. The oxygen generator capable of rapidly replacing molecular sieves of claim 1, wherein: the push block (18) is close to one end of the movable rod (17) and is provided with a limiting hole, the side wall of the limiting hole is connected with a limiting rod (22) in a sliding mode, and one end of the limiting rod (22) far away from the second strip-shaped groove is fixedly connected with the side wall of the movable groove.
5. The oxygen generator capable of rapidly replacing molecular sieves of claim 1, wherein: the baffle (6) are close to equal fixedly connected with rubber block (23) in molecular sieve (5) one side both ends, the same fixedly connected with rubber block (23) of spout lateral wall.
6. The oxygen generator capable of rapidly replacing molecular sieves of claim 1, wherein: one end, far away from the push block (18), of the second connecting rod (19) is fixedly connected with a pressing block, the pressing block is made of rubber materials, and one end, far away from the limiting block (15), of the first connecting rod (16) is also made of rubber materials.
CN202020926988.5U 2020-05-27 2020-05-27 Oxygen generator capable of rapidly replacing molecular sieve Expired - Fee Related CN212467625U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020926988.5U CN212467625U (en) 2020-05-27 2020-05-27 Oxygen generator capable of rapidly replacing molecular sieve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020926988.5U CN212467625U (en) 2020-05-27 2020-05-27 Oxygen generator capable of rapidly replacing molecular sieve

Publications (1)

Publication Number Publication Date
CN212467625U true CN212467625U (en) 2021-02-05

Family

ID=74410955

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020926988.5U Expired - Fee Related CN212467625U (en) 2020-05-27 2020-05-27 Oxygen generator capable of rapidly replacing molecular sieve

Country Status (1)

Country Link
CN (1) CN212467625U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113877373A (en) * 2021-09-14 2022-01-04 浙江远大空分设备有限公司 Modular nitrogen making machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113877373A (en) * 2021-09-14 2022-01-04 浙江远大空分设备有限公司 Modular nitrogen making machine
CN113877373B (en) * 2021-09-14 2023-10-03 浙江凯斯泰克制造科技有限公司 Modularized nitrogen making machine

Similar Documents

Publication Publication Date Title
CN212467625U (en) Oxygen generator capable of rapidly replacing molecular sieve
CN208417743U (en) A kind of gas sampling tube support device for folic acid production line
CN210595262U (en) Pressure boost output pressure swing adsorption oxygen generation device with filter plate convenient to replace
CN208696453U (en) A kind of quick change construction of multifunctional saw
CN203198429U (en) Flange code-pressing machine
CN215782558U (en) Nitrogen making machine convenient for replacing molecular sieve
CN214772229U (en) Cutting device for packaging paper
CN208074283U (en) A kind of steel band tension-type pipe clamp
CN212286812U (en) Clamping mechanism of full-automatic lock cylinder punching equipment
CN108814652A (en) A kind of elastomer smooth transition formula urine liquid sampler
CN209530156U (en) A kind of acceleration solid-phase extraction column solution separating device
CN220715347U (en) Special gas adsorption device for semiconductor
CN212924411U (en) Nitrogen buffer system of nitrogen making machine
CN217854817U (en) Traditional chinese medicine extract filters enrichment facility
CN220575670U (en) Compaction device for plastic product production
CN220142694U (en) Pressure relief collecting device for purging middle core of filter press
CN216320731U (en) Membrane separation nitrogen making machine for coal bunker of power plant
CN207558375U (en) A kind of guitar side plate rib stands device
CN221145427U (en) Relief pressure valve convenient to dismouting
CN217724835U (en) Pneumatic valve for tubular filter
CN217597892U (en) Filter pressing device is used in production of trapezoidal insulating methyl silicone resin
CN2340568Y (en) Forceps for engine cylinder
CN219416890U (en) Water vapor filtering device of atmosphere sampler
CN219580117U (en) Integrated nitrogen impurity removal preparation device
CN215822724U (en) Combined pressure swing adsorption nitrogen making machine

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20210205