CN110562586A - Transportation fixed knot of transformer check out test set constructs - Google Patents
Transportation fixed knot of transformer check out test set constructs Download PDFInfo
- Publication number
- CN110562586A CN110562586A CN201910935369.4A CN201910935369A CN110562586A CN 110562586 A CN110562586 A CN 110562586A CN 201910935369 A CN201910935369 A CN 201910935369A CN 110562586 A CN110562586 A CN 110562586A
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- China
- Prior art keywords
- base
- bottom plate
- threaded shaft
- supporting
- slider
- 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.)
- Pending
Links
- 238000012360 testing method Methods 0.000 title claims description 14
- 238000001514 detection method Methods 0.000 claims abstract description 36
- 238000013016 damping Methods 0.000 claims abstract description 28
- 238000009434 installation Methods 0.000 claims description 5
- 230000009467 reduction Effects 0.000 claims description 2
- 230000009977 dual effect Effects 0.000 claims 5
- 230000033001 locomotion Effects 0.000 description 4
- 239000011295 pitch Substances 0.000 description 3
- 238000011900 installation process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000004867 photoacoustic spectroscopy Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
- B65D25/02—Internal fittings
- B65D25/10—Devices to locate articles in containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a transportation fixing structure of transformer detection equipment, which is used for transporting and fixing the detection equipment and comprises a supporting component, a driving component and a vibration damping component, wherein the supporting component comprises a base, the driving component is combined with the supporting component, the vibration damping component is combined with the base, meanwhile, the vibration damping component is connected with the driving component, the detection equipment is placed on the driving component, and the driving component drives the detection equipment to move. The transportation fixing structure of the transformer detection equipment is simple to operate, reliable in structure and small in size.
Description
Technical Field
The invention relates to the technical field of power monitoring equipment, in particular to a transportation fixing structure of transformer detection equipment.
Background
In the field of power equipment, the working state of a large transformer is related to whether a power grid can normally run, so that the large transformer needs to be frequently detected to prevent the problems such as electric arcs and the like, and the problems are timely treated before the problems occur. Aiming at the detection requirements of large transformers, some detection devices, such as photoacoustic spectroscopy and measurement instruments, are developed in the field, and are all precision instruments, so that the performance of the devices is easily affected by vibration, collision and the like in the transportation and installation processes. In the prior art, the detection equipment for detecting the large transformer is usually provided with a vibration damping structure, but the vibration damping structure mainly provides a vibration damping function in the detection process, and the vibration damping structure can increase the vibration of the instrument in the transportation and installation processes, so that the performance of the instrument is influenced, and the instrument can be damaged in serious cases.
To the damping problem in the large-scale transformer check out test set transportation installation, some corresponding fixed damping schemes have also appeared in this field, adopt the structure of connecting rod transmission or combination connecting rod usually, adopt these structures although can reduce the vibration of instrument in the transportation installation to a certain extent, but the structure is general comparatively complicated, and the part is more, and occupation space is great, and it is convenient inadequately to adjust. Accordingly, there is a need in the art for a shipping fixture that is compact, structurally sound, and easy to operate.
Disclosure of Invention
In view of the above, the main object of the present invention is to provide a transportation fixing structure for transformer detection equipment, the transformer detection equipment is placed on a bottom plate, two sliding blocks are disposed below the bottom plate and are in fit connection with an inclined surface of the bottom plate, a double-threaded shaft is adopted to drive the two sliding blocks to synchronously and reversely slide, so as to drive the bottom plate to drive the transformer detection equipment to move, and a multiple vibration damping and limiting structure is disposed to realize convenient transportation fixing of the transformer detection equipment.
In order to achieve the above object, the present invention provides a transportation fixing structure of a transformer detection device, which is used for transporting and fixing a detection device, and the transportation fixing structure of the transformer detection device includes a support assembly, a driving assembly and a vibration damping assembly, wherein the support assembly includes a base, the driving assembly is installed in combination with the support assembly, the vibration damping assembly is installed in combination with the base, the vibration damping assembly is connected with the driving assembly, the detection device is placed on the driving assembly, and the driving assembly drives the detection device to move.
Preferably, drive assembly includes a bottom plate, a pair of screw shaft and two sliders, the bottom plate passes through damping assembly with the pedestal connection, two the slider sets up the bottom plate with between the base, two the slider is kept away from the tip of base has opposite direction's inclined plane, the bottom plate with two the position that the slider corresponds has two chutes, two screw shafts have two opposite direction's screw thread section, just two screw shafts respectively with two through two screw shafts the slider is connected, two screw shafts rotate drive two the slider is followed two screw shaft direction motion, and two the motion direction of slider is opposite, the drive the bottom plate is along keeping away from or being close to the direction motion of base.
Preferably, the two sliders are a first slider and a second slider, the end of the first slider, which is far away from the base, is provided with a first slider inclined plane, the end of the second slider, which is far away from the base, is provided with a second slider inclined plane, the inclined angles of the first slider inclined plane and the second slider inclined plane are the same, and the inclined directions are opposite; the bottom plate orientation the one side of base with the position that first slider inclined plane aligns has a first bottom plate chute, the bottom plate orientation the one side of base with the position that second slider inclined plane aligns has a second bottom plate chute, first slider inserts in the first bottom plate chute, the second slider inserts in the second bottom plate chute, first slider inclined plane with first bottom plate chute agrees with, second slider inclined plane with the second bottom plate chute agrees with.
Preferably, the double-threaded shaft has a first threaded section and a second threaded section, the first threaded section and the second threaded section have different thread rotation directions and the same thread pitch, and the two sliding blocks are connected with the double-threaded shaft through the first threaded section and the second threaded section respectively.
Preferably, a plurality of shaft supporting members are arranged at the bottom of the base, the double-threaded shaft is provided with a middle section, the middle section is positioned between the first threaded section and the second threaded section, and the middle section is rotatably connected with the shaft supporting members.
Preferably, the support assembly comprises a support part perpendicular to the base, the support part is fixedly connected with the base, the double-threaded shaft can rotatably penetrate through the support part, and the part of the double-threaded shaft penetrating through the support part is connected with a knob.
Preferably, support piece quilt double thread axle passes the department and has a dentate hole, the knob cross-section is the gear form, just the gear form cross-section of knob with dentate hole cross-section is the same, two setting elements of installation on the support piece, two the setting element symmetry is in dentate hole both ends, the knob with when double thread axle is reverse to be connected, the knob joint is fixed in the dentate hole, and two set up between the setting element and connect an flexure strip, the flexure strip is right the knob forms and follows double thread axle axis direction is spacing.
Preferably, damping subassembly includes four angle pillars and four angle and connects the spring, four the angle pillar perpendicular to respectively the base with base fixed connection, and four the angle pillar is located respectively four angles of bottom plate, four the angle pillar is kept away from the tip of base is respectively through four angle connects the spring coupling four angles of bottom plate.
Preferably, the vibration damping assembly comprises a plurality of supporting springs, the supporting springs are located between the base plate and the base, two ends of each supporting spring are respectively connected with the base plate and the base, and the supporting springs are evenly distributed at the bottom of the base plate.
Preferably, the vibration reduction assembly comprises a plurality of height limiting columns, the height limiting columns penetrate through the bottom plate to be connected with the base, the height limiting columns are uniformly distributed on the bottom plate, and the sectional area of the end part, far away from the base, of each height limiting column is larger than the average sectional area of the height limiting columns.
Compared with the prior art, the transportation fixing structure of the transformer detection equipment disclosed by the invention has the advantages that: the transportation fixing structure of the transformer detection equipment is stable in structure, convenient to operate, small in size and good in reliability while saving space.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a front view of a transportation fixing structure of a transformer testing device according to the present invention.
Fig. 2 is a left side view of a transportation fixing structure of the transformer testing apparatus according to the present invention.
Fig. 3 is a top view of a transportation fixing structure of the transformer testing apparatus according to the present invention.
Fig. 4 is a front cross-sectional view of a transportation fixing structure of a transformer testing apparatus according to the present invention.
Fig. 5 is a top view of a transportation fixing structure of a transformer testing device according to the present invention with a bottom plate removed.
Fig. 6 is a top view of the transportation fixing structure of the transformer detection apparatus in a position limited after adjusting the height.
Detailed Description
Referring to fig. 1, 2 and 3, the transportation fixing structure of the transformer detection device of the present application includes a support assembly 10, a driving assembly 20 and a damping assembly 30, wherein the driving assembly 20 is installed in combination with the support assembly 10, the damping assembly 30 is connected to the driving assembly 20, a detection device 40 is placed on the driving assembly 20, and the detection device 40 can be driven to move by operating the driving assembly 20.
Specifically, the support assembly 10 includes a base 11 and a support 12 perpendicular to each other, the support 12 is fixedly connected to the base 11, the base 11 is disposed parallel to the horizontal plane, and the support 12 is perpendicular to the horizontal plane. The driving assembly 20 and the vibration damping assembly 30 are both mounted on the base 11, the driving assembly 20 passes through the support 12 and is connected with the support 12, and the base 11 supports the detection device 40 through the driving assembly 20.
As seen in fig. 4 and 5, the driving assembly 20 includes a base plate 21, a double-threaded shaft 22, a first slider 231, a second slider 232, and a knob 24. The bottom plate 21 is connected with the base 11 through the vibration damping assembly 30, the vibration damping assembly 30 supports the bottom plate 21 and the base 11 to be not in contact, the bottom plate 21 is parallel to the base 11, and the detection device 40 is placed on the bottom plate 21. The first slider 231 and the second slider 232 have the same structural size, the first slider 231 and the second slider 232 are symmetrically arranged, and the first slider 231 and the second slider 232 are arranged between the bottom plate 21 and the base 11. The double-threaded shaft 22 passes through the first sliding block 231 and the second sliding block 232 and is connected with the first sliding block 231 and the second sliding block 232, the double-threaded shaft 22 can rotatably pass through the support 12, and the part of the double-threaded shaft 22 passing through the support 12 is connected with the knob 24. The double-threaded shaft 22 has two threaded sections with the same thread pitch and opposite thread directions, and the double-threaded shaft 22 is connected with the first sliding block 231 and the second sliding block 232 through the two threaded sections respectively. When the double-threaded shaft 22 rotates, the first sliding block 231 and the second sliding block 232 are driven to move along the axial direction of the double-threaded shaft 22, and the moving directions of the first sliding block 231 and the second sliding block 232 are opposite. Furthermore, a plurality of shaft supporting pieces 111 are arranged at the bottom of the base 11, the double-threaded shaft 22 can rotatably penetrate through the shaft supporting pieces 111, the shaft supporting pieces 111 support the double-threaded shaft 22 and limit the axial direction of the double-threaded shaft 22, and the double-threaded shaft 22 is prevented from being displaced in the rotating process.
Specifically, the end of the first slider 231 away from the base 11 has a first slider inclined surface 2311, the end of the second slider 232 away from the base 11 has a second slider inclined surface 2321, and the first slider inclined surface 2311 and the second slider inclined surface 2321 have the same inclination angle and the opposite inclination directions. A first bottom plate inclined groove 211 is formed at a position where one surface of the bottom plate 21 facing the base 11 is aligned with the first slider inclined surface 2311, a second bottom plate inclined groove 212 is formed at a position where one surface of the bottom plate 21 facing the base 11 is aligned with the second slider inclined surface 2321, the first slider 231 is inserted into the first bottom plate inclined groove 211, the second slider 232 is inserted into the second bottom plate inclined groove 212, the first slider inclined surface 2311 is engaged with the first bottom plate inclined groove 211, and the second slider inclined surface 2321 is engaged with the second bottom plate inclined groove 212. During the movement of the first slider 231 and the second slider 232, the first slider inclined surface 2311 acts on the bottom plate 21 through the first bottom plate inclined groove 211, and the second slider inclined surface 2321 acts on the bottom plate 21 through the second bottom plate inclined groove 212, that is, the first slider 231 and the second slider 232 drive the bottom plate 21 to move in a direction away from or close to the base 11 through the inclined surface structure of the bottom plate 21, so as to drive the detection device 40 on the bottom plate 21.
Specifically, the double-threaded shaft 22 has a first threaded section 221, a second threaded section 222 and an intermediate section 223, the intermediate section 223 is located between the first threaded section 221 and the second threaded section 222, the thread rotation directions of the first threaded section 221 and the second threaded section 222 are different, and the thread pitches are the same. The intermediate section 223 is rotatably connected to the shaft support 111, and the intermediate section 223 may serve as an adjustment section when there is an error in the assembly. The first sliding block 231 is connected with the double-threaded shaft 22 through the first threaded section 221, and the second sliding block 232 is connected with the double-threaded shaft 22 through the second threaded section 222.
The damping assembly 30 includes four corner posts 31, four corner springs 32, a plurality of supporting springs 33, and a plurality of height-limiting posts 34. The four corner posts 31 are respectively perpendicular to the base 11 and the base 11, and four corner posts 31 are respectively located at four corners of the bottom plate 21, and four corner posts 31 are far away from the end portion of the base 11 and are respectively connected with four corners of the bottom plate 21 through four corner springs 32. The plurality of supporting springs 33 are arranged between the bottom plate 21 and the base 11, two ends of each supporting spring 33 are respectively connected with the bottom plate 21 and the base 11, and the plurality of supporting springs 33 are uniformly distributed at the bottom of the bottom plate 21. The height limiting columns 34 penetrate through the bottom plate 21 to be connected with the base 11, the height limiting columns 34 are evenly distributed on the bottom plate 21, the sectional area of the end parts, far away from the base 11, of the height limiting columns 34 is larger than the average sectional area of the height limiting columns 34, the height limiting columns 34 limit the moving height range of the bottom plate 21, and the corner joint springs 32 and the supporting springs 33 are prevented from being excessively stretched.
As can be seen from fig. 2 and 6, the support 12 has a toothed hole 121 through which the double-threaded shaft 22 passes, the section of the knob 24 is gear-shaped, and the gear-shaped section of the knob 24 is the same as the section of the toothed hole 121, so that after the knob 24 is reversely connected to the double-threaded shaft 22, the knob 24 can be fixed in the toothed hole 121 in a snap-fit manner. Two positioning pieces 241 are further installed on the supporting piece 12, the two positioning pieces 241 are symmetrically arranged at two ends of the toothed hole 121, and the two positioning pieces 241 are aligned in a direction parallel to the base 11. When the knob 24 is clamped and fixed in the toothed hole 121, two elastic pieces 242 are arranged and connected between the positioning pieces 241, the elastic pieces 242 are right the knob 24 forms a limit position along the axis direction of the double-threaded shaft 22, the knob 24 is prevented from being separated from the double-threaded shaft 22, so that the rotation of the double-threaded shaft 22 and the sliding of the sliding block are prevented, and the stability of the support of the detection device 40 is ensured by the driving assembly 20.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a transformer check out test set's transportation fixed knot constructs for a fixed check out test set of transportation, a characterized in that, transformer check out test set's transportation fixed knot constructs including a supporting component, a drive assembly and a damping subassembly, the supporting component includes a base, drive assembly with the supporting component combines the installation, damping subassembly with the base combines the installation, simultaneously the damping subassembly with drive assembly connects, place on the drive assembly check out test set, the drive assembly drive check out test set removes.
2. The transformer detection device transportation fixing structure according to claim 1, wherein the driving assembly includes a bottom plate, a dual threaded shaft and two sliding blocks, the bottom plate is connected to the base through the damping assembly, the two sliding blocks are disposed between the bottom plate and the base, ends of the two sliding blocks away from the base have inclined planes in opposite directions, positions of the bottom plate corresponding to the two sliding blocks have two inclined grooves, the dual threaded shaft has two threaded sections in opposite directions, the dual threaded shaft is respectively connected to the two sliding blocks through the two threaded shafts, the dual threaded shaft rotates to drive the two sliding blocks to move along the dual threaded shaft, and the two sliding blocks move in opposite directions to drive the bottom plate to move in a direction away from or close to the base.
3. The transportation fixing structure of the transformer detection device according to claim 2, wherein the two sliding blocks are a first sliding block and a second sliding block, the end of the first sliding block away from the base has a first sliding block inclined surface, the end of the second sliding block away from the base has a second sliding block inclined surface, and the first sliding block inclined surface and the second sliding block inclined surface are inclined at the same angle and in opposite directions; the bottom plate orientation the one side of base with the position that first slider inclined plane aligns has a first bottom plate chute, the bottom plate orientation the one side of base with the position that second slider inclined plane aligns has a second bottom plate chute, first slider inserts in the first bottom plate chute, the second slider inserts in the second bottom plate chute, first slider inclined plane with first bottom plate chute agrees with, second slider inclined plane with the second bottom plate chute agrees with.
4. The transformer detection device transportation fixing structure according to claim 2, wherein the double threaded shaft has a first threaded section and a second threaded section, the first threaded section and the second threaded section have different thread rotation directions and the same thread pitch, and two of the sliding blocks are respectively connected to the double threaded shaft through the first threaded section and the second threaded section.
5. The transformer sensing device shipping fixture of claim 4 wherein said base bottom includes a plurality of axle support members, said double threaded axle having an intermediate section between said first threaded section and said second threaded section, said intermediate section being rotatably coupled to said axle support members.
6. The transformer testing apparatus transportation fixing structure of claim 2, wherein the supporting assembly comprises a supporting member perpendicular to the base, the supporting member is fixedly connected with the base, the double-threaded shaft rotatably penetrates through the supporting member, and the double-threaded shaft penetrates through a part of the supporting member to be connected with a knob.
7. The transformer detection device transportation fixing structure according to claim 6, wherein a toothed hole is formed at a position where the supporting member is penetrated by the double threaded shaft, the cross section of the knob is in a gear shape, the gear-shaped cross section of the knob is identical to the cross section of the toothed hole, two positioning members are mounted on the supporting member, the two positioning members are symmetrically arranged at two ends of the toothed hole, when the knob is reversely connected with the double threaded shaft, the knob is clamped and fixed in the toothed hole, an elastic sheet is connected between the two positioning members, and the elastic sheet limits the knob along the axial direction of the double threaded shaft.
8. The transportation fixing structure of transformer detection equipment according to claim 2, wherein the damping component comprises four corner supporting columns and four corner connecting springs, the four corner supporting columns are respectively perpendicular to the base and fixedly connected with the base, the four corner supporting columns are respectively located at four corners of the base plate, and ends of the four corner supporting columns, far away from the base, are respectively connected with the four corners of the base plate through the four corner connecting springs.
9. The transportation fixing structure of transformer detection equipment according to claim 2, wherein the vibration damping assembly comprises a plurality of supporting springs, the supporting springs are located between the bottom plate and the base, two ends of each supporting spring are respectively connected with the bottom plate and the base, and the supporting springs are uniformly distributed at the bottom of the bottom plate.
10. The transportation fixing structure of transformer detection equipment according to claim 2, wherein the vibration reduction assembly comprises a plurality of height-limiting pillars, the height-limiting pillars penetrate through the bottom plate and are connected with the base, the height-limiting pillars are uniformly distributed on the bottom plate, and the cross-sectional area of the end, away from the base, of each height-limiting pillar is larger than the average cross-sectional area of the height-limiting pillars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910935369.4A CN110562586A (en) | 2019-09-29 | 2019-09-29 | Transportation fixed knot of transformer check out test set constructs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910935369.4A CN110562586A (en) | 2019-09-29 | 2019-09-29 | Transportation fixed knot of transformer check out test set constructs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110562586A true CN110562586A (en) | 2019-12-13 |
Family
ID=68783407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910935369.4A Pending CN110562586A (en) | 2019-09-29 | 2019-09-29 | Transportation fixed knot of transformer check out test set constructs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110562586A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111348311A (en) * | 2020-03-25 | 2020-06-30 | 新昌县羽林街道巨晖机械厂 | Complete device for fixing power distribution network power equipment |
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| CN208429348U (en) * | 2018-05-28 | 2019-01-25 | 中国人民解放军陆军工程大学 | Freight vibration reduction support |
| CN208663719U (en) * | 2018-08-23 | 2019-03-29 | 合肥合纵光电科技有限公司 | A kind of large scale backlight module detection platform |
| CN211663739U (en) * | 2019-09-29 | 2020-10-13 | 苏州市职业大学 | Transportation fixed knot of transformer check out test set constructs |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4947663A (en) * | 1990-03-08 | 1990-08-14 | Yeager Elmer R | Security device for dead bolt door lock |
| JP2012104520A (en) * | 2010-11-05 | 2012-05-31 | Mitsubishi Electric Corp | Component float preventing tool |
| CN201851854U (en) * | 2010-11-12 | 2011-06-01 | 中国石油天然气股份有限公司吉林石化分公司 | Lifting device of liquid crystal display |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111348311A (en) * | 2020-03-25 | 2020-06-30 | 新昌县羽林街道巨晖机械厂 | Complete device for fixing power distribution network power equipment |
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