CN112155691B - Puncture outfit with balanced air pressure - Google Patents
Puncture outfit with balanced air pressure Download PDFInfo
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- CN112155691B CN112155691B CN202011106450.0A CN202011106450A CN112155691B CN 112155691 B CN112155691 B CN 112155691B CN 202011106450 A CN202011106450 A CN 202011106450A CN 112155691 B CN112155691 B CN 112155691B
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- air
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- 239000008280 blood Substances 0.000 claims abstract description 26
- 210000004369 blood Anatomy 0.000 claims abstract description 26
- 208000007536 Thrombosis Diseases 0.000 claims abstract description 20
- 238000007790 scraping Methods 0.000 claims abstract description 12
- 230000017531 blood circulation Effects 0.000 claims abstract description 5
- 238000009825 accumulation Methods 0.000 claims abstract 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 8
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 4
- 239000001569 carbon dioxide Substances 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims 1
- 230000002349 favourable effect Effects 0.000 abstract description 11
- 230000015271 coagulation Effects 0.000 abstract 1
- 238000005345 coagulation Methods 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 9
- 210000001015 abdomen Anatomy 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 210000003491 skin Anatomy 0.000 description 4
- 210000000683 abdominal cavity Anatomy 0.000 description 3
- 210000002615 epidermis Anatomy 0.000 description 3
- 230000003187 abdominal effect Effects 0.000 description 2
- 230000036772 blood pressure Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3474—Insufflating needles, e.g. Veress needles
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Pathology (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
- External Artificial Organs (AREA)
Abstract
The invention discloses a puncture outfit with air pressure balance, which comprises a connector, a balancer and a gas pipe, wherein the balancer is connected with the right end of the connector, the gas pipe is sleeved in the middle of the right end of the balancer, the gas pipe is provided with a push plate, a push sheet, a push spring and a dredging device, as a small amount of blood flows back to the inner wall of the gas pipe, the blood is coagulated on the inner wall of the gas pipe along with the increase of operation time, the inner wall of the gas pipe is thickened, a sliding block of the dredging device is matched with the inner wall of the gas pipe, the scraping sheet removes the blood, the blood is reduced to be accumulated on the inner wall of the gas pipe, the blood is favorable for reducing the accumulation and coagulation of the blood, the smooth conveying of the gas through the gas pipe is favorable for increasing the resistance of the inner wall of the gas pipe due to the blood clot coagulated on the inner wall of the gas pipe, the blood clot on the inner wall of the gas pipe is pushed and crushed through the push block, the resistance and the friction force of the inner wall of the gas pipe are favorable for reducing, the sliding block is accelerated to move, and the scraping blade is accelerated to remove blood on the inner wall of the air delivery pipe.
Description
Technical Field
The invention belongs to the field of air pressure system equipment, and particularly relates to an air pressure balanced puncture outfit.
Background
In the operation of abdominal cavity surgery, in order to enlarge the visual field of the abdominal epidermis of the surgery, a puncture outfit with balanced air pressure is adopted to puncture the external part of the abdominal cavity of a patient, carbon dioxide gas is introduced through the puncture outfit, and the skin part of the abdominal cavity is spread by the carbon dioxide gas; when using the puncture ware among the prior art to let in gas for patient's belly, when stopping letting in gas to the belly, the blood pressure of epidermis is greater than the inside gas thrust of air delivery pipe, and a small amount of blood refluxes to the air delivery pipe inner wall, along with operation time's increase, and blood solidifies at the air delivery pipe inner wall, causes the air delivery pipe inner wall bodiness, when ventilating once more, leads to gaseous through-speed to slow down.
Disclosure of Invention
In order to solve the problems that when the puncture outfit is used for introducing gas into the abdomen of a patient in the prior art, when the gas introduction into the abdomen is stopped, the blood pressure of the epidermis is larger than the gas thrust force in the gas transmission pipe, a small amount of blood flows back to the inner wall of the gas transmission pipe, the blood is coagulated on the inner wall of the gas transmission pipe along with the increase of the operation time, so that the inner wall of the gas transmission pipe is thickened, and the passing speed of the gas is slowed down when the puncture outfit is used for introducing gas again, the invention provides the puncture outfit with balanced gas pressure.
In order to achieve the purpose, the invention is realized by the following technical scheme: the air pressure balance puncture outfit structurally comprises an adapter, a balancer and an air pipe, wherein the balancer is connected with the right end of the adapter, and the air pipe is sleeved in the middle of the right end of the balancer.
The gas transmission pipe is provided with a push plate, a push sheet, a push spring and a dredging device, wherein the push plate is arranged on the inner wall of the left end of the gas transmission pipe, the push sheet is clamped between the push plate and the inner wall of the gas transmission pipe, the push spring is fixed on the inner wall of the gas transmission pipe, and the dredging device is positioned in the gas transmission pipe and is movably matched with the push spring.
As a further improvement of the invention, the dredging device is provided with a support ring, limiting blocks, springs and sliding blocks, wherein the support ring is positioned at the inner side of the dredging device, the limiting blocks are embedded in the outer wall of the support ring, the springs are fixed on the outer wall of the support ring and positioned at two sides of the limiting blocks, the sliding blocks are connected with the tail ends of the springs, the sliding blocks are totally provided with eight blocks which are wound into a circular shape, and the sliding blocks are respectively matched with two identical springs.
As a further improvement of the invention, the sliding block is provided with side plates, telescopic rods, a pushing block and a scraping plate, the side plates are positioned on two sides of the sliding block, the telescopic rods are sleeved in the middle of the side plates, the scraping plate is positioned above the side plates, the pushing block is clamped on the side surface between the side plates and the scraping plate, and the scraping plate is in a convex arc plate shape.
As a further improvement of the scraper, the scraper is provided with a supporting block, connecting blocks, elastic blocks and a scraping blade, the supporting block is positioned in the middle of the bottom surface of the scraper, the connecting blocks are sleeved above the supporting block, the elastic blocks are fixedly hung at the tops of the connecting blocks, the scraping blade is positioned between the elastic blocks, and the upper surface of the scraper is a fluctuant and uneven surface.
As a further improvement of the invention, the push block is provided with a connecting plate, a reset block, a limiting block and a crushing plate, the connecting plate is positioned on the left side of the push block, the connecting plate is movably matched with the reset block, the limiting block is embedded in the inner wall of the connecting plate, the crushing plate is sleeved on the inner wall of the right side of the connecting plate, and the reset block is made of rubber.
As a further improvement of the invention, the crushing plate is provided with a collecting cavity, a connecting strip and clamping teeth, the collecting cavity is positioned inside the crushing plate, the clamping teeth are rotated in a dark mode on the right side surface of the crushing plate, the connecting strip is clamped between the left side surface of the clamping teeth and the right side surface of the crushing plate, and the clamping teeth are installed in an inclined mode.
As a further improvement of the invention, the clamping teeth are provided with three fixing blocks, partition plates and blades, the fixing blocks are positioned on the left sides of the clamping teeth, the partition plates are welded on the right side faces of the fixing blocks, the blades are fixed on the right side faces of the partition plates, and the blades are uneven surfaces.
Advantageous effects
Compared with the prior art, the invention has the following beneficial effects:
1. because a small amount of blood flows back to the gas-supply pipe inner wall, along with the increase of operation time, blood solidifies at the gas-supply pipe inner wall, causes the gas-supply pipe inner wall bodiness, through pull throughs's sliding block and gas-supply pipe inner wall cooperation, the doctor-bar is clear away blood, reduces blood and piles up at the gas-supply pipe inner wall, is favorable to reducing blood and piles up the solidification, is favorable to gaseous smoothly to carry through the gas-supply pipe.
2. The blood clots coagulated on the inner wall of the gas pipe can increase the resistance of the inner wall of the gas pipe, and the blood clots coagulated on the inner wall of the gas pipe are pushed and crushed by the push block, so that the resistance and the friction force of the inner wall of the gas pipe are reduced, the moving speed of the sliding block is increased, and the blood on the inner wall of the gas pipe is removed by the scraper.
Drawings
Fig. 1 is a schematic structural view of a puncture outfit with balanced air pressure according to the present invention.
FIG. 2 is a schematic view of an interior of a gas delivery conduit according to the present invention.
Fig. 3 is a side sectional structural schematic view of the dredging device.
FIG. 4 is a front sectional view of a slider according to the present invention.
FIG. 5 is a front cross-sectional structural schematic view of a squeegee according to the present invention.
Fig. 6 is a front sectional structural schematic view of a push block according to the present invention.
FIG. 7 is a front sectional view of a breaker plate according to the present invention.
Fig. 8 is a schematic structural view of a latch according to the present invention.
In the figure: the device comprises a connector-1, a balancer-2, a gas pipe-3, a push plate-31, a push sheet-32, a push spring-33, a dredging device-34, a support ring-a 1, a first limit block-a 2, a spring-a 3, a sliding block-a 4, a side plate-s 1, a telescopic rod-s 2, a push block-s 3, a scraper-s 4, a support block-d 1, a connection block-d 2, a spring block-d 3, a scraper-d 4, a connection plate-e 1, a reset block-e 2, a second limit block-e 3, a crushing plate-e 4, a collection cavity-r 1, a connection strip-r 2, a clamping tooth-r 3, a fixed block-t 1, a partition plate-t 2 and a blade-t 3.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
example 1:
as shown in figures 1 to 5:
the invention provides a puncture outfit with balanced air pressure, which structurally comprises an adapter 1, a balancer 2 and an air pipe 3, wherein the balancer 2 is connected with the right end of the adapter 1, and the air pipe 3 is sleeved in the middle of the right end of the balancer 2.
The gas-supply pipe 3 is equipped with push pedal 31, push pedal 32, pushes away spring 33, pull throughs 34, push pedal 31 is installed at 3 left end inner walls of gas-supply pipe, push pedal 32 presss from both sides between push pedal 31 and 3 inner walls of gas-supply pipe, it fixes at 3 inner walls of gas-supply pipe to push away spring 33, pull throughs 34 is located inside 3 gas-supply pipes, and with push away spring 33 clearance fit.
The dredging device 34 is provided with a support ring a1, a first limit block a2, a spring a3 and a sliding block a4, the support ring a1 is located on the inner side of the dredging device 34, the first limit block a2 is embedded in the outer wall of a support ring a1, the spring a3 is fixed on the outer wall of the support ring a1 and located on two sides of the first limit block a2, the sliding block a4 is connected with the tail end of the spring a3, eight sliding blocks a4 are arranged on the sliding block a4 in total and are wound into a circle, the contact area between the sliding block a3 and the inner wall of the air pipe 3 is increased, blood clots on the inner wall of the air pipe 3 are pushed and removed, the sliding blocks a4 are respectively matched with the two same springs a3, and the uniform angle keeping of the sliding block a4 under stress is facilitated.
Wherein, sliding block a4 is equipped with curb plate s1, telescopic link s2, ejector pad s3, scraper blade s4, curb plate s1 is located sliding block a4 both sides, telescopic link s2 cover is middle part in curb plate s1, scraper blade s4 is located curb plate s1 top, ejector pad s3 presss from both sides the side between curb plate s1 and scraper blade s4, scraper blade s4 is bellied arc platelike, is favorable to the increase with the friction of air-supply pipe 3 inner wall, accelerates the blood promotion with air-supply pipe 3 inner wall, and is favorable to blood to flowing along the cambered surface at scraper blade s4 top.
The scraper s4 is provided with a supporting block d1, a connecting block d2, an elastic block d3 and a scraper d4, the supporting block d1 is located in the middle of the bottom face of the scraper s4, the connecting block d2 is sleeved above the supporting block d1, the elastic block d3 is fixedly hung on the top of the connecting block d2, the scraper d4 is located between the elastic blocks d3, the upper surface of the scraper d4 is an uneven surface, so that the contact area is increased, the friction force is increased, blood clots on the inner wall of the air delivery pipe 3 are fully removed, and the air delivery pipe 3 is kept smooth.
The specific use mode and function of the embodiment are as follows:
in the invention, when the puncture outfit is used for expanding the abdominal outer skin of a patient, the adapter 1 of the puncture outfit is connected with a carbon dioxide pipeline, then the gas pipe 3 is punctured into the outer skin, the balancer 2 is controlled to ventilate, the gas pushes the push plate 31, the push plate 31 is deformed by the push sheet 32 to be opened, the gas enters the gas pipe to expand the skin, when the gas passes through the gas pipe 3, the gas pushes the dredging device 34 to the right end of the gas pipe 3, the device pulls the push spring 33 to be deformed, the spring a3 of the device pushes the sliding block a4 to be matched with the inner wall of the gas pipe 3, the sliding block a4 keeps a uniform position by the limit of the first limit block a2, the telescopic rod s2 in the sliding block a4 is expanded, the scraper s4 is pulled to be expanded by the side plate s1 to increase the contact area of the scraper s4 and the inner wall of the gas pipe 3, the scraper d4 removes the blood in the inner wall of the gas pipe 3, the elastic block d3 drives the scraper d4 to vibrate, make blood flow along the cambered surface at scraper blade s4 top, through the sliding block a4 and the cooperation of gas-supply pipe 3 inner wall of pull throughs 34, doctor-bar d4 clears away blood, and it piles up at gas-supply pipe 3 inner wall to reduce blood, is favorable to reducing blood and piles up the solidification, is favorable to gaseous smooth through the gas-supply pipe 3 transport.
Example 2:
as shown in fig. 6 to 8:
wherein, ejector pad s3 is equipped with connecting plate e1, reset block e2, second stopper e3, breaker e4, connecting plate e1 is located ejector pad s3 left side, connecting plate e1 passes through reset block e2 clearance fit, second stopper e3 inlays admittedly at connecting plate e1 inner wall, breaker e4 cover is at connecting plate e1 right side inner wall, reset block e2 is the rubber material, has elasticity, is favorable to deformation reset to drive breaker e4 vibrations, increases the cooperation impetus of breaker e4 and gas-supply pipe 3 inner wall.
The crushing plate e4 is provided with a collecting cavity r1, a connecting strip r2 and a clamping tooth r3, the collecting cavity r1 is located inside the crushing plate e4, the clamping tooth r3 rotates on the right side face of the crushing plate e4 in a dark mode, the connecting strip r2 is clamped between the left side of the clamping tooth r3 and the right side face of the crushing plate e4, the clamping tooth r3 is installed in an inclined mode, blood clots cleared by the clamping tooth r3 at the upper end can fall to the left side of the clamping tooth r3 at the lower end, and enter the collecting cavity r1 through the right side of the crushing plate e 4.
Wherein, card tooth r3 is equipped with fixed block t1, baffle t2, blade t3, fixed block t1 is located card tooth r3 left side, baffle t2 welds in fixed block t1 right flank, blade t3 is fixed at baffle t2 right flank, blade t3 is equipped with threely, and for unevenness's surface, is favorable to increasing frictional force for promote the blood clot with the air pipe 3 inner wall and smash.
The specific use mode and function of the embodiment are as follows:
in the invention, in the moving process of the sliding block a4, the push block s3 moves along with the movement, the reset block e2 in the push block s3 pops the connecting plate e1 open, the connecting plate e1 pulls the crushing plate e4 to expand, the crushing plate e4 moves to be limited by the second limiting block e3, and is contacted with the blood clot coagulated on the inner wall of the air pipe 3 through the right-side clamping tooth r3, the blood clot is crushed through the collision of the blade t3 and the blood clot, the crushed blood clot slides along the right side surface of the clamping tooth r3 and enters the collecting cavity r1 to be collected from the opening of the right side surface of the crushing plate e4, the connecting strip r2 drives the clamping tooth r3 to swing, the blood clot sliding on the left side surface of the clamping tooth r3 is accelerated, the blood clot coagulated on the inner wall of the air pipe 3 is pushed and crushed through the push block s3, which is beneficial to reducing the resistance and the friction force on the inner wall of the air pipe 3 and accelerating the movement speed of the a4 and the blood cleaning blade 4.
The technical solutions of the present invention or similar technical solutions designed by those skilled in the art based on the teachings of the technical solutions of the present invention are all within the scope of the present invention to achieve the above technical effects.
Claims (2)
1. The utility model provides a balanced puncture ware of atmospheric pressure, its structure includes adapter (1), equalizer (2), gas-supply pipe (3), equalizer (2) are connected with adapter (1) right-hand member, gas-supply pipe (3) cover is at equalizer (2) right-hand member middle part, its characterized in that: the air delivery pipe (3) is provided with a push plate (31), a push sheet (32), a push spring (33) and a dredging device (34), the push plate (31) is arranged on the inner wall of the left end of the air delivery pipe (3), the push sheet (32) is clamped between the push plate (31) and the inner wall of the air delivery pipe (3), the push spring (33) is fixed on the inner wall of the air delivery pipe (3), and the dredging device (34) is located inside the air delivery pipe (3) and is movably matched with the push spring (33); the dredging device (34) is provided with a support ring (a1), a first limit block (a2), a spring (a3) and a sliding block (a4), the support ring (a1) is positioned on the inner side of the dredging device (34), the first limit block (a2) is embedded and fixed on the outer wall of the support ring (a1), the spring (a3) is fixed on the outer wall of the support ring (a1) and positioned on two sides of the first limit block (a2), and the sliding block (a4) is connected with the tail end of the spring (a 3); the sliding block (a4) is provided with side plates (s1), a telescopic rod (s2), a push block (s3) and a scraper (s4), the side plates (s1) are located on two sides of the sliding block (a4), the telescopic rod (s2) is sleeved in the middle of the inner portion of the side plates (s1), the scraper (s4) is located above the side plates (s1), and the push block (s3) is clamped on the side face between the side plates (s1) and the scraper (s 4); the scraper (s4) is provided with a supporting block (d1), connecting blocks (d2), an elastic block (d3) and a scraper blade (d4), the supporting block (d1) is located in the middle of the bottom surface of the scraper (s4), the connecting block (d2) is sleeved above the supporting block (d1), the elastic block (d3) is fixedly hung at the top of the connecting block (d2), and the scraper blade (d4) is located between the elastic blocks (d 3); the push block (s3) is provided with a connecting plate (e1), a reset block (e2), a second limiting block (e3) and a crushing plate (e4), the connecting plate (e1) is located on the left side of the push block (s3), the connecting plate (e1) is movably matched with the reset block (e2), the second limiting block (e3) is embedded and fixed on the inner wall of the connecting plate (e1), and the crushing plate (e4) is sleeved on the inner wall of the right side of the connecting plate (e 1); the crushing plate (e4) is provided with a collecting cavity (r1), a connecting strip (r2) and a clamping tooth (r3), the collecting cavity (r1) is positioned inside the crushing plate (e4), the clamping tooth (r3) is rotated in the dark on the right side face of the crushing plate (e4), and the connecting strip (r2) is clamped between the left side of the clamping tooth (r3) and the right side face of the crushing plate (e 4); card tooth (r3) are equipped with fixed block (t1), baffle (t2), blade (t3), fixed block (t1) are located card tooth (r3) left side, baffle (t2) welding is in fixed block (t1) right flank, blade (t3) are fixed at baffle (t2) right flank.
2. A pneumatically balanced puncture instrument according to claim 1, wherein: connecting an adapter (1) of the puncture outfit with a carbon dioxide pipeline, then piercing an air pipe (3) into the outer skin, controlling a balancer (2) to ventilate, pushing a push plate (31) by air, wherein the push plate (31) is opened by the deformation of a push sheet (32), the air enters the skin to expand, pushing a dredging device (34) to the right end of the air pipe (3) by the air when the air passes through the air pipe (3), pulling a push spring (33) to deform, pushing a sliding block (a4) by a spring (a3) of the device to be matched with the inner wall of the air pipe (3), limiting and keeping the sliding block (a4) at a uniform position by a first limiting block (a2), expanding a telescopic rod (s2) in the sliding block (a4), pulling and expanding a scraper (s4) by a side plate (s1), increasing the contact area of the scraper (s4) and the inner wall of the air pipe (3), and removing the blood in the inner wall of the air pipe (3) by the scraper (d4), the elastic block (d3) drives the scraping blade (d4) to vibrate, so that blood flows along the arc surface at the top of the scraping blade (s4), the sliding block (a4) of the dredging device (34) is matched with the inner wall of the air conveying pipe (3), and the scraping blade (d4) removes the blood, so that the blood accumulation on the inner wall of the air conveying pipe (3) is reduced, the blood accumulation and solidification are reduced, and the smooth conveying of the gas through the air conveying pipe (3) is facilitated;
in the process that the sliding block (a4) moves, the push block (s3) moves along with the movement, the reset block (e2) in the push block (s3) bounces the connecting plate (e1), the connecting plate (e1) pulls the crushing plate (e4) to expand, the crushing plate (e4) moves to be limited by the second limiting block (e3) and is in contact with the blood clot coagulated on the inner wall of the air conveying pipe (3) through the right-side clamping tooth (r3), the blood clot is crushed through the collision of the blade (t3) and the blood clot, the crushed blood clot slides along the right side face of the clamping tooth (r3) and enters the collection cavity (r1) to be collected through the opening of the right side face of the crushing plate (e4), the connecting strip (r2) deforms to drive the clamping tooth (r3) to swing, the blood clot on the left side face of the clamping tooth (r3) is accelerated to slide, the blood clot (3) is pushed through the push the inner wall of the push block (s3) to be coagulated and be beneficial to reducing the friction force of the air conveying pipe (3), the moving speed of the sliding block (a4) is increased, and the blood on the inner wall of the air conveying pipe (3) is removed by the scraping blade (d 4).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011106450.0A CN112155691B (en) | 2020-10-16 | 2020-10-16 | Puncture outfit with balanced air pressure |
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| CN202011106450.0A CN112155691B (en) | 2020-10-16 | 2020-10-16 | Puncture outfit with balanced air pressure |
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| CN112155691B true CN112155691B (en) | 2021-08-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106214191B (en) * | 2016-08-24 | 2018-10-16 | 魏云海 | A kind of puncture outfit of air pressure balance |
| CN210136020U (en) * | 2019-07-11 | 2020-03-10 | 山东丰源通达电力有限公司 | Quick-closing valve of boiler hearth pressure sampling device |
| CN211634230U (en) * | 2020-01-13 | 2020-10-09 | 西安南山松医疗康复器械有限公司 | Pulse pressurization gasbag prevent blockking up trachea device |
| CN111589026B (en) * | 2020-05-31 | 2021-06-04 | 中重(泸州)特种机器人有限公司 | Fire extinguishing investigation robot |
| CN111688081A (en) * | 2020-06-23 | 2020-09-22 | 广州优易机械科技有限公司 | Tire mold |
| CN111742766B (en) * | 2020-06-30 | 2021-11-19 | 湖南蓝旗格气体有限公司 | Garden landscape tree snow shakes off equipment |
| CN111729997A (en) * | 2020-06-30 | 2020-10-02 | 福州凯辉铭机械设备有限公司 | Motor-driven construction machinery |
| CN111747139A (en) * | 2020-06-30 | 2020-10-09 | 菏泽畅千机械设备有限公司 | Feeder for food production and processing |
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Inventor after: Wang Lunqing Inventor after: Wang Hong Inventor before: Wang Hong |
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