CN108408603B - Portable PET detector dismouting device - Google Patents
Portable PET detector dismouting device Download PDFInfo
- Publication number
- CN108408603B CN108408603B CN201810499069.1A CN201810499069A CN108408603B CN 108408603 B CN108408603 B CN 108408603B CN 201810499069 A CN201810499069 A CN 201810499069A CN 108408603 B CN108408603 B CN 108408603B
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- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 abstract description 12
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- 238000010168 coupling process Methods 0.000 description 6
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- 238000000034 method Methods 0.000 description 5
- 230000004060 metabolic process Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000002600 positron emission tomography Methods 0.000 description 2
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- OKTJSMMVPCPJKN-BJUDXGSMSA-N carbon-11 Chemical compound [11C] OKTJSMMVPCPJKN-BJUDXGSMSA-N 0.000 description 1
- 238000013461 design Methods 0.000 description 1
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- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 102000039446 nucleic acids Human genes 0.000 description 1
- 108020004707 nucleic acids Proteins 0.000 description 1
- 150000007523 nucleic acids Chemical class 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/16—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs supported by columns, e.g. towers having their lower end mounted for slewing movements
- B66C23/166—Simple cranes with jibs which may be fixed or can slew or luff
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/68—Jibs foldable or otherwise adjustable in configuration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/72—Counterweights or supports for balancing lifting couples
- B66C23/74—Counterweights or supports for balancing lifting couples separate from jib
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/72—Counterweights or supports for balancing lifting couples
- B66C23/78—Supports, e.g. outriggers, for mobile cranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/84—Slewing gear
Abstract
The invention discloses a portable PET detector dismounting device which comprises a base fixedly arranged on a frame, wherein a rotary frame is detachably connected to the base, one end of the rotary frame is rotatably connected with a connecting frame, and a hanging ring is arranged on the connecting frame. The invention ensures the personal safety of maintenance personnel and the integrity of the detector and simultaneously increases the maintenance efficiency of the PET detector.
Description
Technical Field
The invention relates to medical equipment, in particular to a portable PET detector dismounting device.
Background
Positron emission tomography (Positron Emission Tomography, PET) is a non-invasive technique for functional imaging in vivo, and is widely used in clinical examinations and biological studies. The general method is to mix certain substances, generally substances necessary for biological life metabolism, such as: glucose, protein, nucleic acid, fatty acid, short-lived radionuclide (such as F18, carbon 11, etc.) are marked, and after the radionuclide is injected into human body, the situation of life metabolism activity is reflected by the accumulation of the substance in metabolism, so as to achieve the purpose of diagnosis.
In the using process of PET, when the detector has a problem, the detector needs to be disassembled for maintenance, and then the maintained detector is assembled on a corresponding rack. In the prior art, in the process of disassembling and assembling the detector, the disassembly and assembly mode of manual direct carrying is mainly adopted. After the connected screws are removed, the detector is then pulled out of the rack until the detector is completely separated from the rack, the detector is grasped by one hand, the detector is held by the other hand, and finally the detector is dropped. The detector is installed in a similar manner to the removal.
However, the quality of the detector is large, the disassembly or assembly height is usually about 1.6m, so that maintenance personnel consume excessive physical power and time in the disassembly and assembly process, if misoperation such as unhooking occurs, the detector is damaged and the maintenance personnel are injured by smashing, the detector is high in price, the internal structure is fragile and is extremely easy to crush after collision, the manual operation is performed with great care, the disassembly and assembly efficiency is low, and the whole process is completed by matching of a plurality of people.
Disclosure of Invention
The invention aims to provide a disassembly and assembly device of a portable PET detector, which can ensure the personal safety of maintenance personnel and the integrity of the detector and increase the maintenance efficiency.
The technical aim of the invention is realized by the following technical scheme: the utility model provides a portable PET detector dismouting device, includes the base of setting firmly in the frame, can dismantle on the base and be connected with a revolving frame, revolving frame's one end rotates and is connected with a linking frame, be provided with a rings on the linking frame.
Further provided is that: the connecting frame is penetrated with a ball locking pin, and the tail end of the ball locking pin is inserted into the rotating frame.
Further provided is that: the base top is including a boss, the bottom of revolving frame is provided with a recess of pegging graft with the boss and is connected, all be provided with the jack that supplies bulb locking pin to pass in proper order on revolving frame and the boss.
Further provided is that: and a balancer is hung on the hanging ring.
Further provided is that: the base comprises a bottom shell, an annular ring is arranged on the bottom shell, an annular pressing sleeve is arranged on the annular ring, and the annular ring and the pressing sleeve are connected through bolts; be provided with a thrust bearing in the annular circle, be provided with the rotation axis in the thrust bearing, be provided with an annular blank holder on the outer wall of rotation axis, annular blank holder is contradicted in thrust bearing's top, be provided with angle contact bearing on the rotation axis, press the cover to contradict along on angle contact bearing's the outer lane, be provided with a shell on the drain pan, be provided with the cylindricality portion that extends to in the angle contact bearing on the shell, be provided with a clamping ring on the cylindricality portion, the clamping ring is contradicted along on angle contact bearing's the inner circle, pass through bolted connection between rotation axis and the cylindricality portion.
Further provided is that: and a supporting ring is arranged between the annular ring and the pressing sleeve, and the lower edge of the outer ring of the angular contact bearing is abutted against the upper edge of the supporting ring.
Further provided is that: one side of the bottom shell is provided with a rotary plunger which sequentially penetrates through the bottom shell and the shell.
Further provided is that: the rotary frame is connected with a bearing housing base through a bolt, a thrust bearing is arranged in the bearing housing base, a lower rotary shaft is arranged in the thrust bearing, an annular pressing edge is arranged on the outer wall of the lower rotary shaft and is abutted against the upper layer of the thrust bearing, a corner contact bearing is arranged on the lower rotary shaft, a bearing housing top cover is arranged on the bearing housing base, the connecting frame is connected with the bearing housing top cover through a bolt, an upper rotary shaft is arranged in the bearing housing top cover, the upper rotary shaft is abutted against the upper edge of the inner ring of the corner contact bearing, and the upper rotary shaft is connected with the lower rotary shaft through a bolt.
Further provided is that: reinforcing ribs are arranged at the turning positions of the rotating frame and the connecting frame.
Further provided is that: the connecting frame is provided with a handle.
In summary, the invention has the following beneficial effects: when the detector is damaged and the detector needs to be disassembled and assembled, maintenance personnel can conveniently plug the rotating piece on the base, so that the disassembly and assembly device has a double rotating structure and covers all stations; the bearing group in the dismounting device adopts a double-bearing structure, so that the axial force applied to the rotating shaft can be slowed down, the rotating shaft is prevented from being deformed and blocked, and the rotating flexibility is ensured; the dismounting device is of split and foldable design, is convenient to carry and assemble, and ensures dismounting efficiency; the balancer is adopted, so that the burden of maintenance personnel can be reduced, the personal safety of the maintenance personnel is ensured, and the damage to internal parts caused by falling of the detector is avoided; the dismounting device can also be used for dismounting other parts by replacing the connecting bracket, and has a larger application range.
Drawings
FIG. 1 is a schematic perspective view of a dismounting device according to the present invention;
FIG. 2 is a cross-sectional view of a lifting base;
FIG. 3 is a cross-sectional view of the rotary member;
FIG. 4 is a schematic perspective view of a lifting base and a rotating member;
fig. 5 is an operation state diagram of the dismounting device.
In the figure: 1. a base; 2. a frame; 3. a rotating frame; 4. a coupling frame; 5. ball lock pin; 6. a boss; 7. a groove; 8. a hanging ring; 9. a balancer; 10. a bottom case; 11. a housing; 12. an annular ring; 13. a bolt; 14. a rotation shaft; 15. rotating the plunger; 16. a support ring; 17. a bearing housing top cover; 18. a bearing housing base; 19. an upper rotating shaft; 20. a lower rotating shaft; 21. a thrust bearing; 22. angular contact bearings; 23. reinforcing ribs; 24. a handle; 25. pressing the sleeve; 26. annular edge pressing; 27. a columnar portion; 28. and (5) pressing the ring.
Detailed Description
The present invention is described in further detail below in conjunction with fig. 1-5.
A portable PET detector dismounting device comprises a base 1 fixedly arranged on a frame 2 and a rotary frame 3 detachably connected with the base 1, wherein one end of the rotary frame 3 is rotatably connected with a connecting frame 4, and a balancer 9 is hung at the front end of the connecting frame 4. The base 1 is arranged on the frame 2, the rotating frame 3 and the connecting frame 4 are carried by maintenance personnel, the rotating frame 3 is spliced on the base 1 during use, the fixing of the rotating frame 3 and the connecting frame 4 is realized, and then the balancer 9 is hung on the front end of the connecting frame 4, so that a detector positioned below can be hung on the balancer 9, and quick assembly and disassembly are realized. The balancer 9 can adopt a ratchet balancer 9, the ratchet balancer 9 can adjust the elastic force of an internal spring according to the mass of the detector, and the elastic force can enable the hooked weight to be in a suspended state, so that the weight can stay at any position, the burden of a person is greatly reduced, and meanwhile, the safety of the detector and the person is also ensured.
The rotary frame 3 is 7-shaped as a whole and has a rectangular cross section. The lower extreme of revolving frame 3 is provided with recess 7 for peg graft with boss 6 of base 1 top, and boss 6 can rotate relative to base 1. The other end of the rotating frame 3 is rotatably provided with a coupling frame 4 so that the coupling frame 4 can be rotated relative to the rotating frame 3. The rotating frame 3 rotates relative to the base 1, and the connecting frame 4 rotates relative to the rotating frame 3, so that the dismounting device has double rotating joints, and can freely rotate and cover the working area of the whole frame 2 in a normal working state, and the dismounting of the detector of any station can be completed. The turning part of the rotating frame 3 is provided with a reinforcing rib 23 to increase structural strength.
The coupling frame 4 is integrally divided into three sections, namely an upper section, a middle section and a lower section, the sections of which are rectangular, wherein the upper section and the lower section are mutually parallel, the middle section is an obtuse angle with the two ends, and a reinforcing rib 23 is arranged between the middle section and the lower section to increase the structural strength. The lower section is provided with a ball locking pin 5, and the ball locking pin 5 penetrates through the connecting frame 4 and penetrates into the rotating frame 3, so that the connecting frame 4 and the rotating frame 3 can be folded and fixed, occupied space is reduced, and meanwhile, the connecting frame can be kept stable when being carried or stored. When the rotary frame is used, the ball head locking pin 5 can be taken out, so that the connecting frame 4 and the rotary frame 3 can rotate relatively, and meanwhile, the ball head locking pin 5 can be inserted into the lower end of the rotary frame 3, so that the ball head locking pin 5 passes through the boss 6 to fix the base 1 and the rotary frame 3. A handle 24 is arranged between the lower section and the middle section, and the handle 24 is arranged on the gravity center line of the rotating piece when the rotating piece is folded, so that the maintenance personnel can conveniently carry the rotating piece. A hanging ring 8 is arranged on the upper section of the connecting frame 4, the hanging ring 8 is a rotary hanging ring 8, and a balancer 9 is hung on the rotary hanging ring 8.
The base 1 comprises a bottom shell 10, an annular ring is integrally arranged on the upper end face of the bottom shell 10, a supporting ring 16 is arranged on the upper edge of the annular ring, a pressing sleeve 25 is arranged on the supporting ring 16, 4 bolts are arranged on the bottom of the bottom shell 10, and the 4 bolts sequentially penetrate through the annular ring and the supporting ring 16 and finally penetrate into the pressing sleeve 25, so that the annular ring, the supporting ring 16 and the pressing sleeve 25 are fixed together. The annular ring is internally provided with a thrust bearing 21, the thrust bearing 21 is internally provided with a rotating shaft 14, the outer wall of the rotating shaft 14 is provided with an annular pressing edge 26, the annular pressing edge 26 is abutted against the upper side of the thrust bearing 21, the rotating shaft 14 is provided with an angular contact bearing 22, the lower edge of the inner ring of the angular contact bearing 22 is abutted against the rotating shaft 14, the outer ring of the angular contact bearing 22 is abutted against the supporting ring 16, the pressing sleeve 25 is abutted against the upper edge of the outer ring of the angular contact bearing 22, the bottom shell 10 is provided with a shell 11, the shell 11 is provided with a cylindrical part 27 extending into the angular contact bearing 22, the cylindrical part 27 is provided with a pressing ring 28, and the pressing ring 28 is abutted against the upper edge of the inner ring of the angular contact bearing 22. The rotary shaft 14 is connected to the cylindrical portion 27 by bolts.
A rotary plunger 15 is provided at one side of the bottom case 10, and is pushed or rotated to be inserted into or separated from the housing 11, thereby controlling the rotation of the base 1.
The upper end surface of the rotating frame 3 is embedded with a bearing housing base 181 and is fixed by bolts. The bearing housing base 181 is internally provided with a thrust bearing 21, the thrust bearing 21 is internally provided with a lower rotating shaft 20, an annular pressing edge 26 is arranged on the outer wall of the lower rotating shaft 20, the annular pressing edge 26 is abutted against the upper layer of the thrust bearing 21, and an angular contact bearing 22 is arranged on the lower rotating shaft 20. The lower end face of the coupling frame 4 is embedded with a bearing housing top cover 17, the bearing housing top cover 17 is fixed on the coupling frame 4 through bolts, an upper rotating shaft 19 is arranged in the bearing housing top cover 17, a cylindrical part 27 is arranged on the upper rotating shaft 19, a pressing ring 28 is arranged on the outer circumference of the cylindrical part 27, and the pressing ring 28 is abutted against the upper edge of the inner ring of the angular contact bearing 22. The upper rotary shaft 19 and the lower rotary shaft 20 are connected by bolts.
In use, the value of the balancer 9 is first adjusted according to the weight of the detector.
When the detector is dismantled, the special hoisting support for the detector is fixed on the detector, then the balancer 9 is hooked on the rotary hanging ring 8 of the hoisting support, and then a maintainer slowly withdraws the detector from the frame 2 until the detector is completely separated from the frame 2. Due to the action of the balancer 9, the detector is in a gravity-free state, and a serviceman can drop the detector onto the ground with little force, namely, the detector is dismounted.
When the detector is installed, the special hoisting support for the detector is fixed on the detector, and then the balancer 9 is hooked on the hoisting ring 8 of the hoisting support. At this time, under the action of the balancer 9, the detector is in a gravity-free state, a maintainer can lift the detector to a desired height with a small force, after the holes of the detector and the frame 2 are aligned, the detector is pushed in, then the detector is fastened by bolts, and the special lifting bracket for the detector is removed, so that the installation of the detector is completed.
And the power supply box is removed and installed in the same way, and the power supply box is disassembled and assembled only by replacing the special lifting bracket for the detector with the special lifting bracket for the power supply box.
The present embodiment is only for explanation of the present invention and is not to be construed as limiting the present invention, and modifications to the present embodiment, which may not creatively contribute to the present invention as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present invention.
Claims (8)
1. The utility model provides a portable PET detector dismouting device which characterized in that: the lifting device comprises a base fixedly arranged on a rack, wherein a rotary frame is detachably connected to the base, one end of the rotary frame is rotatably connected with a connecting frame, and a lifting ring is arranged on the connecting frame; the base comprises a bottom shell, an annular ring is arranged on the bottom shell, an annular pressing sleeve is arranged on the annular ring, and the annular ring and the pressing sleeve are connected through bolts; a thrust bearing I is arranged in the annular ring, a rotating shaft is arranged in the thrust bearing I, an annular pressing edge I is arranged on the outer wall of the rotating shaft, the annular pressing edge I is abutted against the upper side of the thrust bearing I, an angular contact bearing I is arranged on the rotating shaft, a pressing sleeve is abutted against the upper edge of the outer ring of the angular contact bearing I, a shell is arranged on the bottom shell, a cylindrical part extending into the angular contact bearing I is arranged on the shell, a pressing ring is arranged on the cylindrical part, the pressing ring is abutted against the upper edge of the inner ring of the angular contact bearing I, and the rotating shaft is connected with the cylindrical part through a bolt; the bearing comprises a rotating frame, wherein a bearing housing base is connected to the rotating frame through a bolt, a thrust bearing is arranged in the bearing housing base, a lower rotating shaft is arranged in the thrust bearing, an annular blank pressing ring is arranged on the outer wall of the lower rotating shaft, the annular blank pressing ring is abutted to the upper layer of the thrust bearing, a corner contact bearing is arranged on the lower rotating shaft, a bearing housing top cover is arranged on the bearing housing base, the connecting frame is connected with the bearing housing top cover through a bolt, an upper rotating shaft is arranged in the bearing housing top cover, the upper rotating shaft is abutted to the inner ring upper edge of the corner contact bearing ring, and the upper rotating shaft is connected with the lower rotating shaft through a bolt.
2. The portable PET detector dismounting device of claim 1, wherein: the connecting frame is penetrated with a ball locking pin, and the tail end of the ball locking pin is inserted into the rotating frame.
3. The portable PET detector dismounting device of claim 2, wherein: the base top is including a boss, the bottom of revolving frame is provided with a recess of pegging graft with the boss and is connected, all be provided with the jack that supplies bulb locking pin to pass in proper order on revolving frame and the boss.
4. The portable PET detector dismounting device of claim 1, wherein: and a balancer is hung on the hanging ring.
5. The portable PET detector dismounting device of claim 1, wherein: a supporting ring is arranged between the annular ring and the pressing sleeve, and the lower edge of the outer ring of the angular contact bearing A is abutted against the upper edge of the supporting ring.
6. The portable PET detector dismounting device of claim 5, wherein: one side of the bottom shell is provided with a rotary plunger which sequentially penetrates through the bottom shell and the shell.
7. The portable PET detector dismounting device of claim 1, wherein: reinforcing ribs are arranged at the turning positions of the rotating frame and the connecting frame.
8. The portable PET detector dismounting device of claim 1, wherein: the connecting frame is provided with a handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810499069.1A CN108408603B (en) | 2018-05-23 | 2018-05-23 | Portable PET detector dismouting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810499069.1A CN108408603B (en) | 2018-05-23 | 2018-05-23 | Portable PET detector dismouting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108408603A CN108408603A (en) | 2018-08-17 |
| CN108408603B true CN108408603B (en) | 2024-01-23 |
Family
ID=63140365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810499069.1A Active CN108408603B (en) | 2018-05-23 | 2018-05-23 | Portable PET detector dismouting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108408603B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015007451A (en) * | 2013-06-25 | 2015-01-15 | 日本精工株式会社 | Rolling bearing device |
| CN205309319U (en) * | 2016-01-05 | 2016-06-15 | 富阳新马工具有限公司 | Activity live centre |
| CN206606941U (en) * | 2017-03-30 | 2017-11-03 | 合肥恺文重工机械有限公司 | A kind of wind-powered electricity generation industry folding arm hoist |
| CN207390870U (en) * | 2017-11-15 | 2018-05-22 | 方菱桥隧模架（福州）有限公司 | A kind of production suspender of security protection |
| CN208345618U (en) * | 2018-05-23 | 2019-01-08 | 明峰医疗系统股份有限公司 | A kind of portable pet detector attaching/detaching apparatus |
-
2018
- 2018-05-23 CN CN201810499069.1A patent/CN108408603B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015007451A (en) * | 2013-06-25 | 2015-01-15 | 日本精工株式会社 | Rolling bearing device |
| CN205309319U (en) * | 2016-01-05 | 2016-06-15 | 富阳新马工具有限公司 | Activity live centre |
| CN206606941U (en) * | 2017-03-30 | 2017-11-03 | 合肥恺文重工机械有限公司 | A kind of wind-powered electricity generation industry folding arm hoist |
| CN207390870U (en) * | 2017-11-15 | 2018-05-22 | 方菱桥隧模架（福州）有限公司 | A kind of production suspender of security protection |
| CN208345618U (en) * | 2018-05-23 | 2019-01-08 | 明峰医疗系统股份有限公司 | A kind of portable pet detector attaching/detaching apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108408603A (en) | 2018-08-17 |
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