CN209680739U - Reaction tube cleaner - Google Patents

Reaction tube cleaner Download PDF

Info

Publication number
CN209680739U
CN209680739U CN201822091477.1U CN201822091477U CN209680739U CN 209680739 U CN209680739 U CN 209680739U CN 201822091477 U CN201822091477 U CN 201822091477U CN 209680739 U CN209680739 U CN 209680739U
Authority
CN
China
Prior art keywords
brush
reaction tube
main rod
mobile jib
rod
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
CN201822091477.1U
Other languages
Chinese (zh)
Inventor
林丽
樊博
李以康
郭小伟
柯浔
曹广民
李玉林
李茜
杜岩功
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.)
Northwest Institute of Plateau Biology of CAS
Original Assignee
Northwest Institute of Plateau Biology of CAS
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 Northwest Institute of Plateau Biology of CAS filed Critical Northwest Institute of Plateau Biology of CAS
Priority to CN201822091477.1U priority Critical patent/CN209680739U/en
Application granted granted Critical
Publication of CN209680739U publication Critical patent/CN209680739U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Cleaning In General (AREA)

Abstract

The utility model provides a kind of reaction tube cleaner, comprising: mobile jib, the first ring portion, the second stopper, M secondary bar, M cleaning brush;M is the natural number more than or equal to 1, wherein, first ring portion, the second stopper are installed on the mobile jib, first ring portion is slided up and down along the mobile jib, second stopper is fixed on the mobile jib, and first ring portion is located at the top of second stopper, and the first end of each secondary bar is connect with first ring portion, the first end of M secondary bar is circumferentially distributed along the mobile jib, and the second end of each secondary bar connects a cleaning brush.The utility model realizes the reuse of reaction tube, reduces consumables cost.

Description

Reaction tube cleaner
Technical Field
The utility model relates to an organic element analysis technical field especially relates to a reaction tube clearance ware.
Background
In a land ecosystem, organic carbon and nitrogen in soil are important components of soil organic matters, are important links for connecting soil, plants, animals and microorganisms in the ecosystem, play an important role in promoting plant growth, improving soil fertility, protecting the environment and promoting sustainable development of agricultural environment, and are one of the highest indexes in current soil science research.
With the progress of science and technology and the innovation of technology, the element analyzer is more and more widely applied to the determination of soil carbon nitrogen elements, and has the tendency of replacing the traditional potassium dichromate oxidation capacity method and Kjeldahl method. The application range of the element analyzer improves the measuring efficiency and reduces the random error of the measuring result, but because a quartz tube is required to be used as a reaction container in the measuring process of the element analyzer and is filled with a filler, the high-temperature gas with the flash combustion temperature of 1700 ℃ is oxidized, reduced and separated at the ambient temperature of 680-1050 ℃, and finally the aim of quantitatively measuring the content of the target element is fulfilled. In the process, the reducing agent (copper powder) is oxidized (changed into copper oxide) by the high-temperature gas, and a part of the mixture of the copper powder and the copper oxide is fused into a firm metal block under the plateau condition and is gathered in the reaction tube made of the quartz tube material. Since the reaction tube is made of quartz, it is poor in elasticity, and if the content melted into a block shape is taken out with a sharp instrument, it is easily broken and cannot be reused. And some model element analyzers are limited by instrument design, the port of the reaction tube is thin, and a large-caliber cleaner cannot be allowed to enter a cleaning mode of cleaning a hard metal reducing agent in a molten state.
Therefore, when the element analyzer is used for measuring the content of the element components, the quartz tube is a disposable article, and after the quartz tube is used, the quartz tube cannot be cleaned and can only be discarded, so that the waste of materials and funds is caused, and the cost of the test is greatly increased.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
In view of the above technical problem, the utility model provides a reaction tube clearance ware. The utility model discloses a reaction tube cleaner flexible, scalable, adjustable has certain hardness, and the quartz capsule that protection fragility that can furthest is very strong does not receive destruction at the cleaning process, has realized the used repeatedly of reaction tube, reduces the consumptive material cost, improves work efficiency.
(II) technical scheme
According to an aspect of the utility model, a reaction tube clearance ware is provided, a serial communication port, include: the cleaning brush comprises a main rod, a first ring part, a second blocking part, M auxiliary rods and M cleaning brushes; m is a natural number of 1 or more, wherein,
first ring portion, second fender portion are installed on the mobile jib, and first ring portion slides from top to bottom along the mobile jib, and second fender portion is fixed on the mobile jib, and first ring portion is located the top that the second kept off the portion, and the first end of every subsidiary pole all is connected with first ring portion, and the first end of M subsidiary poles distributes along the circumference of mobile jib, and a clearance brush is connected to the second end of every subsidiary pole.
In some embodiments of the present invention, the cleaning brush includes a brush rod and a brush head, the first end of the brush rod is fixed on the main rod, the first end of the brush rod is distributed along the circumference of the main rod, the second end of the auxiliary rod is movably connected with the corresponding brush rod, and the second end of the auxiliary rod can slide back and forth along the corresponding brush rod, and the brush head is fixed at the second end of the brush rod.
In some embodiments of the present invention, the first ring portion can rotate around the main rod, a groove is disposed on an inner side surface of the first ring portion, and a bump is disposed on an outer surface of the main rod; wherein,
when the first ring part slides up and down along the main rod, the groove is embedded with the lug;
when utilizing the reaction tube clearance ware to clear up the reaction tube, the lug supports at the upper surface of first ring portion, prevents first ring portion rebound.
In some embodiments of the present invention, the device further comprises a spring, the spring is sleeved on the main rod, and the spring is located between the first ring part and the second stopper.
In some embodiments of the present invention, the position of the projection on the primary rod is adjustable.
In certain embodiments of the present invention, the reaction tube cleaning device further comprises a spring, the spring is sleeved on the main rod, and the spring is located between the first ring portion and the second stopper portion.
(III) advantageous effects
According to the above technical scheme, the utility model discloses reaction tube clearance ware has one of them of following beneficial effect at least:
(1) the utility model discloses an utilize the reaction tube clearance ware, make disposable reaction tube can used repeatedly, greatly reduced the consumptive material cost.
(2) The utility model discloses a reaction tube cleaner opens and is closed through control cleaning brush, makes the cleaning brush can get into small-bore reaction tube, has enlarged the application scope of reaction tube cleaner.
Drawings
FIG. 1 is a schematic structural diagram of a reaction tube cleaning device according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of a bump and a groove according to an embodiment of the present invention.
[ Main element ]
1-a main rod;
2-a first ring portion;
3-a second stop;
4-auxiliary rod;
5-cleaning brush;
51-a brush bar;
52-a brush head;
6-a spring;
7-a groove;
8-bump.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings.
The first embodiment:
in the present embodiment, a reaction tube cleaning device is provided, as shown in fig. 1, comprising a main rod 1, a first ring part 2, a second baffle part 3, two sub-rods 4, and two cleaning brushes 5.
First ring portion 2, second gear 3 are installed on mobile jib 1, and first ring portion 2 slides from top to bottom along mobile jib 1, and second gear 3 is fixed on mobile jib 1, and first ring portion 2 is located the top of second gear 3, and the first end of every subsidiary pole 4 all is connected with first ring portion 2, and the first end of two subsidiary poles 4 distributes along the circumference of mobile jib 1, and a clearance brush 5 is connected to the second end of every subsidiary pole 4. For example, when the first ring part 2 is in contact with the second stopper part 3, the cleaning brush 5 is as close as possible to the inner wall of the reaction tube to be cleaned without being in contact therewith. Of course, when the first ring part 2 and the second baffle part 3 are not yet in contact, the cleaning brush 5 is close to the inner wall of the reaction tube to be cleaned as much as possible without contacting.
When the reaction tube cleaner is used for cleaning reaction tubes, the first ring part 2 is pulled upwards to drive the first end of each auxiliary rod 4 to move upwards along the main rod 1, so that the second end of each auxiliary rod 4 is gradually close to the main rod 1, and the process is a closing process of the cleaning brush 5; when the cleaning brush 5 is closed to enter the reaction tube, the lower end of the main rod 1 is inserted into the reaction tube, the first ring part 2 is loosened, the first ring part 2 slides downwards along the main rod 1 under the action of self gravity or in combination with downward thrust, the first end of each auxiliary rod 4 is driven to move downwards along the main rod 1, the second end of each auxiliary rod 4 is gradually far away from the main rod 1, and the process is an opening process of the cleaning brush 5; when the cleaning brush 5 is opened to a certain degree, the reaction tube can be cleaned next until the cleaning brush 5 is close to the inner wall of the reaction tube to be cleaned as far as possible without contacting.
Through above-mentioned structure, can clear up the reaction tube, make disposable reaction tube can used repeatedly, greatly reduced consumptive material cost, simultaneously, through opening and the closure of control clearance brush, make the clearance brush can get into small-bore reaction tube, enlarged the application scope of reaction tube clearance ware.
It should be noted that the above is only an exemplary illustration, the present embodiment is not limited to this, and in other examples, the number of the sub-rods 4 is arbitrary, at least one, and the number of the cleaning brushes 5 is the same as the number of the sub-rods 4. The second stopper 3 may have a ring-shaped structure, and has the same shape as the first ring 2.
Second embodiment:
in this embodiment, a reaction tube cleaner is provided, and only the differences from the second embodiment will be described below.
As shown in fig. 1, each cleaning brush 5 includes a brush rod 51, a brush head 52, a first end of the brush rod 51 is fixed on the primary shaft 1, a first end of the brush rod 51 is located below, for example, the second stopper 3, a first end of the brush rod 51 is distributed along the circumferential direction of the primary shaft 1, a second end of the secondary shaft 4 is connected with the corresponding brush rod 51, and a second end of the secondary shaft 4 slides along its corresponding brush rod 51, and the brush head 52 is fixed on the second end of the brush rod 51.
As shown in fig. 2, a groove 7 is provided on the side of the first ring part 2 close to the outer surface of the main rod 1, a protrusion 8 is provided on the outer surface of the main rod 1, the groove 7 is embedded with the protrusion 8, so that the protrusion 8 does not affect the up-and-down sliding of the first ring part 2 along the main rod 1, when the reaction tube is cleaned by using the reaction tube cleaner, the protrusion 8 is completely exposed out of the upper surface of the first ring part 2, at this time, the groove 7 and the protrusion 8 are staggered by rotating the first ring part 2, and the protrusion 8 abuts against the upper surface of the first ring part 2, thereby preventing the first ring part 2 from moving upwards.
For example, the second end of the secondary rod 4 is provided with a collar which is sleeved on the brush rod 51 to realize the reciprocating sliding of the second end of the secondary rod 4 along the brush rod 51.
When the reaction tube cleaner is used for cleaning reaction tubes, the first ring part 2 is pulled upwards to drive the first end of each auxiliary rod 4 to move upwards along the main rod 1, so that the second end of each auxiliary rod 4 gradually approaches to the main rod 1 along the brush rod 51, the upward pulling force of the auxiliary rod 4 on the brush rod 51 is gradually reduced, the second end of the brush rod 51 and the brush head 52 gradually approach to the main rod 1 under the action of self gravity, and the process is a closing process of the cleaning brush 5; when the cleaning brush 5 is closed to be capable of entering the reaction tube, the lower end of the main rod 1 is inserted into the reaction tube, the first ring part 2 is loosened, the first ring part 2 slides downwards along the main rod 1 under the action of self gravity or in combination with downward thrust, the first end of each auxiliary rod 4 is driven to move downwards along the main rod 1, the second end of each auxiliary rod 4 is gradually far away from the main rod 1 along the brush rod 51, the upward tensile force of the auxiliary rod 4 on the brush rod 51 is gradually increased, the second end of the brush rod 51 and the brush head 52 are gradually far away from the main rod 1, and the process is the opening process of the cleaning brush 5; open to a certain extent when clearance brush 5, clearance brush 5 is close to as far as possible but contactless with the inner wall of the reaction tube of treating the clearance, and rotatory first ring portion 2 makes recess 7 stagger with lug 8, and lug 8 supports the upper surface at first ring portion 2, prevents first ring portion 2 rebound, just can clear up the reaction tube next.
Through above-mentioned structure, the brush head makes its extension distance increase with the help of the brush-holder stud, can be used for the reaction tube of bigger internal diameter, and the cooperation of recess 7 and lug 8 is used and is makeed the in-process first ring portion 2 that clears up the reaction tube can not be along 1 rebound of mobile jib, has guaranteed abundant clearance effect.
The third embodiment:
in this embodiment, a reaction tube cleaner is provided, and only the difference from the third embodiment will be described below.
As shown in fig. 1, a spring 6 is disposed between the first ring portion 2 and the second blocking portion 3, and the spring 6 is sleeved on the main rod 1.
When not in use, the cleaning brush 5 is in a closed state, where the brush head 52 is close to the main shaft 1.
Utilize above-mentioned reaction tube clearance ware to clear up the reaction tube, insert the lower extreme of mobile jib 1 in the reaction tube, first ring portion 2 pushes down, the first end that drives every vice pole 4 moves down along mobile jib 1, make the second end of every vice pole 4 keep away from mobile jib 1 along brush-holder stud 51 gradually, mobile jib 1 is kept away from to the second end of vice pole 4 to the ascending pulling force of brush-holder stud 51 gradually increase, mobile jib 1 is kept away from gradually to the second end of brush-holder stud 51 and brush head 52, this process is the process of opening of clearance brush 5, when the inner wall of brush head 52 and the reaction tube of treating the clearance is close to as far as possible but not contact, rotatory first ring portion 2 makes recess 7 stagger with lug 8, lug 8 supports the upper surface at first ring portion 2, prevent first ring portion 2 rebound, just can clear up the reaction tube next.
The position of the convex block 8 on the main rod 1 is adjustable, and the position of the convex block 8 can be adjusted to change the compression degree of the spring 6 aiming at different inner diameters of the reaction tube, so that the opening degree of the cleaning brush 5 is changed, and the brush head 52 is close to but not in contact with the inner wall of the reaction tube with different inner diameters in the maximum range.
Through the structure, the opening degree of the cleaning brush 5 is changed by utilizing the spring 6, so that the brush head 52 can be contacted with the inner walls of the reaction tubes with different inner diameters, and the reaction tube cleaner can clean the reaction tubes with different inner diameters or the inner walls of the reaction tubes with different inner diameters well.
The fourth embodiment:
in this embodiment, a reaction tube cleaner is provided, and only the differences from the second embodiment will be described below.
As shown in fig. 1, a spring 6 is disposed between the first ring portion 2 and the second blocking portion 3, and the spring 6 is sleeved on the main rod 1.
When not in use, the cleaning brush 5 is in an open position, where the brush head 52 is remote from the main shaft 1.
When the reaction tube cleaner is used for cleaning reaction tubes, the first ring part 2 is pulled upwards to drive the first end of each auxiliary rod 4 to move upwards along the main rod 1, so that the second end of each auxiliary rod 4 gradually approaches to the main rod 1 along the brush rod 51, the upward pulling force of the auxiliary rod 4 on the brush rod 51 is gradually reduced, the second end of the brush rod 51 and the brush head 52 gradually approach to the main rod 1 under the action of self gravity, and the process is a closing process of the cleaning brush 5; when the cleaning brush 5 is closed to be capable of entering the reaction tube, the lower end of the main rod 1 is inserted into the reaction tube, the first ring part 2 is loosened, the first ring part 2 slides downwards along the main rod 1 under the action of self gravity or in combination with the pulling force of the spring 6, the first end of each auxiliary rod 4 is driven to move downwards along the main rod 1, the second end of each auxiliary rod 4 is gradually far away from the main rod 1 along the brush rod 51, the upward pulling force of the auxiliary rod 4 on the brush rod 51 is gradually increased, the second end of the brush rod 51 and the brush head 52 are gradually far away from the main rod 1, and the process is the opening process of the cleaning brush 5; when the brush head 52 is in close proximity to the inner wall of the reaction tube to be cleaned, the contents of the reaction tube can be cleaned.
In the clearance in-process, during the reaction tube internal diameter grow, first ring portion 2 is constantly slided downwards along mobile jib 1 under the action of gravity of self or the pulling force that combines spring 6, can continue to clear up, when brush head 52 is moved to less internal diameter position by great internal diameter position, the first end of every subsidiary pole 4 can be followed mobile jib 1 and upwards moved by oneself, brush head 52 is to the direction removal that is close to the mobile jib, still can continue to clear up the inner wall of reaction tube, under the effect of spring 6, can make a round trip to clear up repeatedly automatically to the inner wall position of different internal diameters in the reaction tube of different internal diameters or the reaction tube, need not the position with the help of the adjustment lug.
Up to this point, the present embodiment has been described in detail with reference to the accompanying drawings. From the above description, those skilled in the art should clearly recognize that the present invention can be applied to a full-automatic sample injector, an elemental analyzer, and a reaction tube cleaner.
It is to be noted that, in the attached drawings or in the description, the implementation modes not shown or described are all the modes known by the ordinary skilled person in the field of technology, and are not described in detail. Further, the above definitions of the various elements and methods are not limited to the various specific structures, shapes or arrangements of parts mentioned in the examples, which may be easily modified or substituted by those of ordinary skill in the art.
It should also be noted that directional terms, such as "upper", "lower", "front", "rear", "left", "right", etc., used in the embodiments are only directions referring to the drawings, and are not intended to limit the protection scope of the present invention.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention can be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
It should be noted that throughout the drawings, like elements are represented by like or similar reference numerals. In the following description, some specific embodiments are for illustrative purposes only, and should not be construed as limiting the invention in any way, but merely as exemplifications of embodiments of the invention. Conventional structures or constructions will be omitted when they may obscure the understanding of the present invention. It should be noted that the shapes and sizes of the respective components in the drawings do not reflect actual sizes and proportions, but merely illustrate the contents of the embodiments of the present invention.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (6)

1. A reactor tube cleaner, comprising: the cleaning brush comprises a main rod (1), a first ring part (2), a second blocking part (3), M auxiliary rods (4) and M cleaning brushes (5); m is a natural number of 1 or more, wherein,
first ring portion (2), second keep off portion (3) and install on mobile jib (1), first ring portion (2) are followed mobile jib (1) slides from top to bottom, second keep off portion (3) and fix on mobile jib (1), first ring portion (2) are located the top of second fender portion (3), the first end of every subsidiary pole (4) all with first ring portion (2) are connected, and the first end of M subsidiary poles (4) is followed the circumference of mobile jib (1) distributes, and a clearance brush (5) is connected to the second end of every subsidiary pole (4).
2. The reaction tube cleaner as recited in claim 1, wherein the cleaning brush (5) comprises a brush bar (51) and a brush head (52), a first end of the brush bar (51) is fixed on the primary bar (1), a first end of the brush bar (51) is distributed along a circumferential direction of the primary bar (1), a second end of the secondary bar (4) is movably connected with the corresponding brush bar (51), and a second end of the secondary bar (4) is capable of sliding back and forth along the corresponding brush bar (51), and the brush head (52) is fixed at a second end of the brush bar (51).
3. The reactor tube cleaner as recited in claim 1, wherein the first ring part (2) is rotatable around the main rod (1), a groove (7) is provided on an inner side surface of the first ring part (2), and a protrusion (8) is provided on an outer surface of the main rod (1); wherein,
when the first ring part (2) slides up and down along the main rod (1), the groove (7) is embedded with the lug (8);
when the reaction tube cleaner is used for cleaning the reaction tube, the lug (8) is abutted against the upper surface of the first ring part (2) to prevent the first ring part (2) from moving upwards.
4. The reactor tube cleaner as recited in claim 3, further comprising a spring (6), wherein the spring (6) is sleeved on the main rod (1), and the spring (6) is located between the first ring part (2) and the second baffle part (3).
5. The reactor pig cleaner as claimed in claim 4, characterized in that the position of the projections (8) on the main shaft (1) is adjustable.
6. The reactor tube cleaner as recited in claim 1 or 2, further comprising a spring (6), wherein the spring (6) is sleeved on the main rod (1), and the spring (6) is located between the first ring part (2) and the second blocking part (3).
CN201822091477.1U 2018-12-13 2018-12-13 Reaction tube cleaner Expired - Fee Related CN209680739U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201822091477.1U CN209680739U (en) 2018-12-13 2018-12-13 Reaction tube cleaner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201822091477.1U CN209680739U (en) 2018-12-13 2018-12-13 Reaction tube cleaner

Publications (1)

Publication Number Publication Date
CN209680739U true CN209680739U (en) 2019-11-26

Family

ID=68595974

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201822091477.1U Expired - Fee Related CN209680739U (en) 2018-12-13 2018-12-13 Reaction tube cleaner

Country Status (1)

Country Link
CN (1) CN209680739U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109433761A (en) * 2018-12-13 2019-03-08 中国科学院西北高原生物研究所 Reaction tube cleaner

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109433761A (en) * 2018-12-13 2019-03-08 中国科学院西北高原生物研究所 Reaction tube cleaner
CN109433761B (en) * 2018-12-13 2024-03-22 中国科学院西北高原生物研究所 Reaction tube cleaner

Similar Documents

Publication Publication Date Title
CN209680739U (en) Reaction tube cleaner
Laza‐Martínez et al. Characterization of a strain of Fukuyoa paulensis (Dinophyceae) from the Western Mediterranean Sea
CN109433761A (en) Reaction tube cleaner
Babusiaux Correlations between kinematics and metallicity in the Galactic bulge: a review
CN205393126U (en) Pipeline inner wall adhesion thing cleaning device
CN103900851B (en) Bottom mud in lake sampling thief
CN203060854U (en) Throwing toy
CN205571742U (en) Anchor clamps and laser marking machine
Camps et al. Geomagnetic paleosecular variation recorded in Plio‐Pleistocene volcanic rocks from Possession Island (Crozet Archipelago, southern Indian Ocean)
DE102009028890A1 (en) tool holder
Glen et al. A detailed record of paleomagnetic field change from Searles Lake, California: 2. The Gauss/Matuyama polarity reversal
CN206341749U (en) A kind of sea urchin harvester
CN108097680A (en) Improve the device to oil reaction kettle cleaning effect
CN210464990U (en) Sampling device for soil remediation
CN205673318U (en) Hand-held cleans device
ATE37627T1 (en) SUSPENSION ARRANGEMENT AND METHOD FOR THE MANIPULATION ROD OF A CONTROL BUNDLE IN THE NUCLEAR REACTOR.
CN104552161B (en) A kind of hammer nail hand guard device
CN208037202U (en) A kind of blanking switch of powder conduit
CN202881439U (en) Furnace barrel cleaning device of single crystal furnace
Anistratenko Morphology and taxonomy of late badenian to sarmatian Mohrensternia (Gastropoda: rissooidea) of the central Paratethys
CN209014333U (en) A kind of sampling instrument of brine Baume degrees test
CN105004567B (en) Disposable feces harvester
CN109419433A (en) Novel cleaner
US102214A (en) Improvement in rammer-staves
CN205007978U (en) A automatically -controlled door for rotating jar body and agitating unit thereof

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: 20191126

Termination date: 20201213