CN114321268A - Gas refrigeration equipment - Google Patents
Gas refrigeration equipment Download PDFInfo
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- CN114321268A CN114321268A CN202111660675.5A CN202111660675A CN114321268A CN 114321268 A CN114321268 A CN 114321268A CN 202111660675 A CN202111660675 A CN 202111660675A CN 114321268 A CN114321268 A CN 114321268A
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- fixed block
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 43
- 238000013016 damping Methods 0.000 claims description 20
- 238000001816 cooling Methods 0.000 claims 1
- 230000003139 buffering effect Effects 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 description 6
- 230000035939 shock Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
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Abstract
The invention discloses a gas refrigeration device, and relates to the technical field of refrigeration devices; the buffer bin is fixedly connected to one end of the base, the second buffer mechanism is fixedly connected to the inner bottom surface of the buffer bin and is in sliding connection with the inner side surface of the buffer bin, the second voltage dividing mechanism is fixedly connected to the inside of the buffer bin and is in sliding fit with the first buffer mechanism, the first buffer mechanism is fixedly connected to one end, far away from the base, of the second buffer mechanism and is in sliding connection with the inner side surface of the buffer bin, and the first voltage dividing mechanism is fixedly connected between the first buffer mechanism and the second buffer mechanism; the invention has the beneficial effects that: the device not only can play the cushioning effect at the in-process of refrigeration plant body work, but also can play the absorbing effect of partial pressure when buffer gear works, effectual improvement device's stability, and the device still is provided with second grade buffering and partial pressure damper, and the stability of improvement device that can step forward has improved the work efficiency of device.
Description
Technical Field
The invention relates to the technical field of refrigeration equipment, in particular to gas refrigeration equipment.
Background
With the continuous development of science and technology, the electronic special gas is used as a basic supporting source material, is more and more widely applied to high-technology industries such as semiconductors, microelectronics, solar cells and the like, and the preparation and purification scale of the electronic special gas is larger and larger; electronic special gas usually has the dangers of flammability, strong toxicity, corrosion and the like, has certain potential safety hazard to operators, and in the electronic industry, the purity of the electronic special gas is usually required to reach more than 99.9999%.
Among the existing devices, most devices do not have certain buffering and damping effects in the working process, so that the stability of the devices is reduced, the service life of the devices is also shortened, and the working efficiency of the devices is influenced to a certain extent.
Disclosure of Invention
The present invention is directed to a gas refrigeration apparatus to solve the problems set forth in the background above.
In order to achieve the purpose, the invention provides the following technical scheme:
a gas refrigeration apparatus, said gas refrigeration apparatus comprising:
one end of the base is fixedly connected with a buffer bin; the buffer bin is used for mounting a first buffer mechanism, a first voltage division mechanism, a second buffer mechanism and a second voltage division mechanism; and
the second buffer mechanism is fixedly connected to the inner bottom surface of the buffer bin and is in sliding connection with the inner side surface of the buffer bin; the damping device is used for further damping when the refrigeration equipment body works;
the second pressure dividing mechanism is fixedly connected inside the buffer bin and is in sliding fit with the first buffer mechanism; the second buffer mechanism is used for playing a further partial pressure damping role when working;
the first buffer mechanism is fixedly connected to one end, far away from the base, of the second buffer mechanism and is in sliding connection with the inner side face of the buffer bin, and one end, far away from the base, of the first buffer mechanism is fixedly connected with the refrigeration equipment body; the damping device is used for playing an effective role in damping when the refrigeration equipment body works;
the first pressure dividing mechanism is fixedly connected between the first buffer mechanism and the second buffer mechanism; the first buffer mechanism is used for playing a certain partial pressure damping role when working.
As a further scheme of the invention: the second buffer mechanism includes:
the bottom plate is connected inside the buffer bin in a sliding mode and is in sliding fit with the second voltage division mechanism; and
the fourth elastic piece is fixedly connected between the bottom plate and the inner bottom surface of the buffer bin, and a plurality of the fourth elastic pieces are arranged.
As a still further scheme of the invention: the second pressure dividing mechanism includes:
the supports are fixedly connected to the inner bottom surface of the buffer bin at intervals, and one ends of the supports, which are close to the bottom plate, are fixedly connected with guide blocks; and
the slide bar, slide bar sliding connection is in the inside of guide block, and the slide bar setting is in the inside one end and the bottom plate sliding fit of bottom plate, and the one end fixedly connected with connecting plate of bottom plate is kept away from to the slide bar, and fixedly connected with fifth elastic component between the side of connecting plate and surge bin.
As a still further scheme of the invention: a track groove is formed in the side surface of the bottom plate and is in sliding fit with the sliding rod;
the inside of guide block is provided with the slide bar groove, the slide bar groove is used for installing the slide bar.
As a still further scheme of the invention: the first buffer mechanism includes:
the mounting plate is connected to one end, far away from the base, of the interior of the buffer bin in a sliding mode, the end, far away from the base, of the mounting plate is fixedly connected with a refrigeration equipment body, and first fixing blocks are fixedly connected to one end, far away from the refrigeration equipment body, of the mounting plate at intervals; and
the base is kept away from to the bottom plate, the second fixed block is fixed connection respectively and is in the one end both sides of base, and the inside sliding connection of second fixed block has first slider, and fixedly connected with third elastic component between the interior bottom surface of first slider and second fixed block, and first slider is close to one side fixedly connected with connecting block of close first fixed block, and connecting block sliding connection is inside the side of second fixed block to with first fixed block fixed connection.
As a still further scheme of the invention: the first pressure dividing mechanism includes:
the second fixed block is fixedly connected to one end of the bottom plate, two sides of the interior of the second fixed block are connected with second sliding blocks in a sliding mode, and a second elastic piece is fixedly connected between the second sliding blocks and the inner bottom surface of the second fixed block; and
the fixed shaft is fixedly connected to the side surfaces of the first fixed block and the second sliding block respectively, and the fixed shaft arranged on the second sliding block is in sliding connection with the side surface of the third fixed block;
the connecting rods are rotatably connected to the outer side face of the fixing shaft, and a first elastic piece is fixedly connected between the adjacent connecting rods on one side.
As a still further scheme of the invention: and a fixed shaft groove is formed in the side surface of the third fixed block and used for installing a fixed shaft.
Compared with the prior art, the invention has the beneficial effects that: the gas refrigeration equipment drives the mounting plate to slide when in work, the first fixing block moves downwards along with the mounting plate, the first sliding block is driven by the connecting block to slide in the second fixed block, the third elastic element is compressed to play a role of buffering, and the fixed shaft on the first fixed block moves along with the first fixed block to drive the connecting rod to rotate, the first elastic piece is stretched along with the first fixed block, the fixed shaft on the second sliding block slides along the fixed shaft groove to drive the second sliding block to slide in the third fixed block, the second elastic element is compressed along with the second sliding block, the first elastic part and the bottom plate slide along with the first elastic part to play a role of pressure division and shock absorption and drive the fourth elastic part to be compressed to play a role of further buffering, the rail groove slides along the sliding rod to drive the sliding rod to slide outwards along the sliding rod groove, and the connecting plate moves along with the rail groove to drive the fifth elastic piece to be compressed to play a further partial pressure damping role; the device not only can play the cushioning effect at the in-process of refrigeration plant body work, but also can play the absorbing effect of partial pressure when buffer gear works, and effectual improvement device's stability has increased the practicality of device, and the device still is provided with second grade buffering and partial pressure damper, and the stability of improvement device that can be further has improved the work efficiency of device to a certain extent.
Drawings
Fig. 1 is a schematic view of the external structure of a gas refrigeration apparatus.
Fig. 2 is a schematic view of the internal structure of the gas refrigeration apparatus.
Fig. 3 is a schematic structural diagram of a first buffer mechanism and a first pressure dividing mechanism in the gas refrigeration apparatus.
Fig. 4 is a schematic structural diagram of a second pressure division mechanism in the gas refrigeration equipment.
Fig. 5 is a schematic structural diagram of a bottom plate in the gas refrigeration equipment.
In the figure: the refrigerator comprises a base-1, a buffer bin-2, a refrigeration equipment body-3, a mounting plate-4, a first fixing block-5, a first elastic part-6, a connecting rod-7, a second sliding block-8, a fixed shaft-9, a second elastic part-10, a connecting block-11, a first sliding block-12, a third elastic part-13, a bottom plate-14, a fourth elastic part-15, a second fixing block-16, a third fixing block-17, a fixed shaft groove-18, a rail groove-19, a sliding rod-20, a guide block-21, a sliding rod groove-22, a connecting plate-23, a fifth elastic part-24 and a support-25.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 5, a gas refrigeration apparatus according to an embodiment of the present invention includes:
the device comprises a base 1, wherein one end of the base 1 is fixedly connected with a buffer bin 2; the buffer bin 2 is used for installing a first buffer mechanism, a first voltage division mechanism, a second buffer mechanism and a second voltage division mechanism; and
the second buffer mechanism is fixedly connected to the inner bottom surface of the buffer bin 2 and is in sliding connection with the inner side surface of the buffer bin 2; the damping device is used for further damping when the refrigeration equipment body 3 works;
the second pressure dividing mechanism is fixedly connected inside the buffer bin 2 and is in sliding fit with the first buffer mechanism; the second buffer mechanism is used for playing a further partial pressure damping role when working;
the first buffer mechanism is fixedly connected to one end, far away from the base 1, of the second buffer mechanism and is in sliding connection with the inner side face of the buffer bin 2, and one end, far away from the base 1, of the first buffer mechanism is fixedly connected with the refrigeration equipment body 3; the damping device is used for playing an effective damping role when the refrigeration equipment body 3 works;
the first pressure dividing mechanism is fixedly connected between the first buffer mechanism and the second buffer mechanism; the first buffer mechanism is used for playing a certain partial pressure damping role when working.
Referring to fig. 2, in an embodiment of the present invention, the second buffer mechanism includes:
the bottom plate 14 is connected inside the buffer bin 2 in a sliding mode, and the bottom plate 14 is in sliding fit with the second pressure dividing mechanism; the bottom plate 14 can slide up and down in the buffer bin 2; and
the fourth elastic pieces 15 are fixedly connected between the bottom plate 14 and the inner bottom surface of the buffer bin 2, and a plurality of the fourth elastic pieces 15 are distributed at one end of the bottom plate 14 at equal intervals; the sliding of the bottom plate 14 can drive each fourth elastic element 15 to be compressed, thereby playing a role of buffering.
Referring to fig. 2 and 4, in an embodiment of the present invention, the second voltage dividing mechanism includes:
the brackets 25 are fixedly connected to the inner bottom surface of the buffer bin 2 at intervals, and one end of each bracket 25, which is close to the bottom plate 14, is fixedly connected with a guide block 21; the guide block 21 is used for mounting the sliding rod 20; and
the sliding rod 20 is connected inside the guide block 21 in a sliding manner, one end of the sliding rod 20, which is arranged inside the bottom plate 14, is in sliding fit with the bottom plate 14, one end, which is far away from the bottom plate 14, of the sliding rod 20 is fixedly connected with a connecting plate 23, and a fifth elastic piece 24 is fixedly connected between the connecting plate 23 and the side surface of the buffer bin 2; the bottom plate 14 slides downwards to drive the sliding rod 20 to slide in the guide block 21, and further drive the connecting plate 23 to move, and the fifth elastic element 24 is compressed accordingly, so as to perform a further partial pressure shock absorption function.
Referring to fig. 4 to 5, in an embodiment of the present invention, a rail groove 19 is disposed inside a side surface of the bottom plate 14, the rail groove 19 is slidably engaged with the sliding rod 20, and the bottom plate 14 can drive the rail groove 19 to slide along the sliding rod 20 and further drive the sliding rod 20 to move;
the guide block 21 is provided inside with a slide bar groove 22, and the slide bar groove 22 is used for mounting the slide bar 20 and is in sliding fit with the slide bar 20.
Referring to fig. 1 to 3, in an embodiment of the present invention, the first buffer mechanism includes:
the mounting plate 4 is connected to one end, far away from the base 1, of the interior of the buffer bin 2 in a sliding mode, one end, far away from the base 1, of the mounting plate 4 is fixedly connected with the refrigeration equipment body 3, and first fixing blocks 5 are fixedly connected to one end, far away from the refrigeration equipment body 3, of the mounting plate 4 at intervals; the mounting plate 4 can slide in the buffer bin 2, so that the first fixing block 5 is driven to move; and
the second fixed blocks 16 are respectively and fixedly connected to two sides of one end, far away from the base 1, of the bottom plate 14, the inner portions of the second fixed blocks 16 are connected with first sliding blocks 12 in a sliding mode, third elastic pieces 13 are fixedly connected between the inner bottom surfaces of the first sliding blocks 12 and the second fixed blocks 16, one sides, close to the first fixed blocks 5, of the first sliding blocks 12 are fixedly connected with connecting blocks 11, and the connecting blocks 11 are connected to the inner portions of the side surfaces of the second fixed blocks 16 in a sliding mode and fixedly connected with the first fixed blocks 5; the first fixing block 5 moves to drive the connecting block 11 to slide in the side surface of the second fixing block 16, the first sliding block 12 slides in the second fixing block 16, and the third elastic element 13 is compressed to play a role in buffering.
Referring to fig. 1 to 3, in an embodiment of the present invention, the first voltage dividing mechanism includes:
the third fixed block 17 is fixedly connected to one end of the bottom plate 14 and arranged between the second fixed blocks 16 on the two sides, the two sides inside the third fixed block 17 are both connected with the second sliding blocks 8 in a sliding mode, and the second elastic pieces 10 are fixedly connected between the inner sides of the third fixed block 17 and the inner bottom surface of the third fixed block 17; the second sliding block 8 can slide in the third fixed block 17, so as to drive the second elastic element 10 to be compressed, and further play a role in buffering; and
the fixed shaft 9 is fixedly connected to the side surfaces of the first fixed block 5 and the second sliding block 8 respectively, and the fixed shaft 9 arranged on the second sliding block 8 is in sliding connection with the side surface of the third fixed block 17; the fixed shaft 9 is used for mounting the connecting rod 7;
the connecting rods 7 are rotatably connected to the outer side surface of the fixed shaft 9, and a first elastic piece 6 is fixedly connected between every two adjacent connecting rods 7 on one side; the first fixing block 5 moves to drive the fixing shaft 9 on the first fixing block to move, so that the connecting rod 7 is driven to rotate, the first elastic piece 6 is stretched accordingly to play a further buffering role, and the fixing shaft 9 on the second sliding block 8 slides along the side face of the third fixing block 17 accordingly and drives the second sliding block 8 to slide.
Referring to fig. 3, in an embodiment of the present invention, a fixing shaft groove 18 is formed on a side surface of the third fixing block 17, and the fixing shaft groove 18 is used for installing the fixing shaft 9 and is slidably engaged with the fixing shaft 9.
The working principle of the invention is as follows:
when the refrigeration equipment body 3 starts, the mounting plate 4 is pressed to slide downwards along the buffering bin 2, so as to drive the first fixing block 5 to move downwards, the first fixing block 5 moves to drive the connecting block 11 to slide in the side surface of the second fixing block 16, the first sliding block 12 slides in the second fixing block 16 along with the first fixing block, the third elastic element 13 is compressed to play a buffering role, the first fixing block 5 moves to drive the fixing shaft 9 on the first fixing block to move, so as to drive the connecting rod 7 to rotate, the first elastic element 6 is stretched along with the first fixing block, the fixing shaft 9 on the second sliding block 8 slides along with the fixing shaft groove 18 in the side surface of the third fixing block 17, so as to drive the second sliding block 8 to slide in the third fixing block 17, the second elastic element 10 is compressed along with the first elastic element 6 to play a role in pressure division and shock absorption together with the first elastic element 6, and the bottom plate 14 also slides downwards along with the side surface of the buffering bin 2 under the pressure, the fourth elastic members 15 are compressed to play a further buffering role, the track grooves 19 in the bottom plate 14 also slide downwards along the sliding rods 20, the sliding rods 20 on the two sides are further driven to slide outwards along the sliding rod grooves 22 in the guide block 21, and the connecting plate 23 moves along with the sliding rods to drive the fifth elastic members 24 to be compressed to play a further partial pressure shock absorption role.
The gas refrigeration equipment drives the mounting plate 4 to slide when working, the first fixing block 5 moves downwards along with the mounting plate, the connecting block 11 drives the first sliding block 12 to slide in the second fixing block 16, the third elastic element 13 is compressed to play a role in buffering, the fixing shaft 9 on the first fixing block 5 moves along with the third elastic element, the connecting rod 7 is driven to rotate, the first elastic element 6 is stretched along with the first elastic element, the fixing shaft 9 on the second sliding block 8 slides along the fixing shaft groove 18 to drive the second sliding block 8 to slide in the third fixing block 17, the second elastic element 10 is compressed along with the second elastic element, the first elastic element 6 plays a role in pressure division and shock absorption, meanwhile, the bottom plate 14 also slides along with the second elastic element to drive the fourth elastic element 15 to be compressed to play a further role in buffering, the track groove 19 slides along the sliding rod 20 to drive the sliding rod 20 to slide outwards along the sliding rod groove 22, the connecting plate 23 moves along with the movement of the connecting plate, so that the fifth elastic piece 24 is driven to be compressed, and a further partial pressure shock absorption effect is achieved; the device not only can play the cushioning effect at the in-process of the work of refrigeration plant body 3, but also can play the absorbing effect of partial pressure when buffer gear works, and effectual improvement device's stability has increased the practicality of device, and the device still is provided with second grade buffering and partial pressure damper, and the stability of improvement device that can be further has improved the work efficiency of device to a certain extent.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. A gas refrigeration apparatus, characterized in that it comprises:
one end of the base is fixedly connected with a buffer bin; the buffer bin is used for mounting a first buffer mechanism, a first voltage division mechanism, a second buffer mechanism and a second voltage division mechanism; and
the second buffer mechanism is fixedly connected to the inner bottom surface of the buffer bin and is in sliding connection with the inner side surface of the buffer bin; the damping device is used for further damping when the refrigeration equipment body works;
the second pressure dividing mechanism is fixedly connected inside the buffer bin and is in sliding fit with the first buffer mechanism; the second buffer mechanism is used for playing a further partial pressure damping role when working;
the first buffer mechanism is fixedly connected to one end, far away from the base, of the second buffer mechanism and is in sliding connection with the inner side face of the buffer bin, and one end, far away from the base, of the first buffer mechanism is fixedly connected with the refrigeration equipment body; the damping device is used for playing an effective role in damping when the refrigeration equipment body works;
the first pressure dividing mechanism is fixedly connected between the first buffer mechanism and the second buffer mechanism; the first buffer mechanism is used for playing a certain partial pressure damping role when working.
2. The gas refrigeration apparatus of claim 1 wherein said second cushioning mechanism comprises:
the bottom plate is connected inside the buffer bin in a sliding mode and is in sliding fit with the second voltage division mechanism; and
and the fourth elastic piece is fixedly connected between the bottom plate and the inner bottom surface of the buffer bin.
3. The gas refrigeration apparatus of claim 2 wherein said second pressure divider mechanism comprises:
the supports are fixedly connected to the inner bottom surface of the buffer bin at intervals, and one ends of the supports, which are close to the bottom plate, are fixedly connected with guide blocks; and
the slide bar, slide bar sliding connection is in the inside of guide block, and the slide bar setting is in the inside one end and the bottom plate sliding fit of bottom plate, and the one end fixedly connected with connecting plate of bottom plate is kept away from to the slide bar, and fixedly connected with fifth elastic component between the side of connecting plate and surge bin.
4. The gas refrigeration apparatus according to claim 3 wherein the side of said base plate is internally provided with a track groove, said track groove being in sliding engagement with a slide bar;
the inside of guide block is provided with the slide bar groove, the slide bar groove is used for installing the slide bar.
5. The gas refrigeration apparatus of claim 2 wherein said first cushioning mechanism comprises:
the mounting plate is connected to one end, far away from the base, of the interior of the buffer bin in a sliding mode, the end, far away from the base, of the mounting plate is fixedly connected with a refrigeration equipment body, and the end, far away from the refrigeration equipment body, of the mounting plate is fixedly connected with a first fixing block;
the base is kept away from to the bottom plate, the second fixed block is fixed connection respectively and is in the one end both sides of base, and the inside sliding connection of second fixed block has first slider, and fixedly connected with third elastic component between the interior bottom surface of first slider and second fixed block, and first slider is close to one side fixedly connected with connecting block of close first fixed block, and connecting block sliding connection is inside the side of second fixed block to with first fixed block fixed connection.
6. The gas refrigeration apparatus of claim 5 wherein said first pressure divider mechanism comprises:
the second fixed block is fixedly connected to one end of the bottom plate, two sides of the interior of the second fixed block are connected with second sliding blocks in a sliding mode, and a second elastic piece is fixedly connected between the second sliding blocks and the inner bottom surface of the second fixed block; and
the fixed shaft is fixedly connected to the side surfaces of the first fixed block and the second sliding block respectively, and the fixed shaft arranged on the second sliding block is in sliding connection with the side surface of the third fixed block;
the connecting rods are rotatably connected to the outer side face of the fixing shaft, and a first elastic piece is fixedly connected between the adjacent connecting rods on one side.
7. The gas cooling device as claimed in claim 6, wherein the third fixing block is provided at a side thereof with a fixing shaft groove for mounting the fixing shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111660675.5A CN114321268A (en) | 2021-12-31 | 2021-12-31 | Gas refrigeration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111660675.5A CN114321268A (en) | 2021-12-31 | 2021-12-31 | Gas refrigeration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114321268A true CN114321268A (en) | 2022-04-12 |
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ID=81019015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111660675.5A Pending CN114321268A (en) | 2021-12-31 | 2021-12-31 | Gas refrigeration equipment |
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| CN (1) | CN114321268A (en) |
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| CN112096779A (en) * | 2020-09-16 | 2020-12-18 | 湖州拓锐机械有限公司 | Bottom damping and buffering device for screw gas compression machinery |
| CN212928117U (en) * | 2020-07-30 | 2021-04-09 | 天津力天医药包装材料有限责任公司 | Novel air compressor machine that macromolecular material preparation was used |
| WO2021248796A1 (en) * | 2020-06-09 | 2021-12-16 | 扬州爱非科鞋业有限公司 | Testing device used for shoe upper processing and having good protection |
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2021
- 2021-12-31 CN CN202111660675.5A patent/CN114321268A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206723342U (en) * | 2017-02-08 | 2017-12-08 | 湖州优创科技有限公司 | A kind of electromechanical shock-absorption device |
| US20190372492A1 (en) * | 2017-12-20 | 2019-12-05 | Dongguan University Of Technology | Stepper motor driver for mechanical engineering |
| CN208331116U (en) * | 2018-06-27 | 2019-01-04 | 民勤县三宜种业有限公司 | A kind of buffering plate than heavy-duty machine |
| CN209144631U (en) * | 2018-09-07 | 2019-07-23 | 青岛市市政工程设计研究院有限责任公司 | A kind of partial pressure type bridge construction construction |
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| CN210859107U (en) * | 2019-08-27 | 2020-06-26 | 广州市健文机械配件有限公司 | Cylinder seat for sealed refrigeration compressor |
| WO2021248796A1 (en) * | 2020-06-09 | 2021-12-16 | 扬州爱非科鞋业有限公司 | Testing device used for shoe upper processing and having good protection |
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| CN112096779A (en) * | 2020-09-16 | 2020-12-18 | 湖州拓锐机械有限公司 | Bottom damping and buffering device for screw gas compression machinery |
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