CN220249528U - Detachable support tool for nuclear power water tank - Google Patents
Detachable support tool for nuclear power water tank Download PDFInfo
- Publication number
- CN220249528U CN220249528U CN202321996729.XU CN202321996729U CN220249528U CN 220249528 U CN220249528 U CN 220249528U CN 202321996729 U CN202321996729 U CN 202321996729U CN 220249528 U CN220249528 U CN 220249528U
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- China
- Prior art keywords
- support
- nuclear power
- water tank
- power water
- arc
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 67
- 230000008093 supporting effect Effects 0.000 claims abstract description 77
- 230000003014 reinforcing effect Effects 0.000 claims description 29
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The utility model discloses a detachable support tool of a nuclear power water tank, which comprises a base and a tray; the base comprises a plurality of support cross bars which are arranged at intervals along the longitudinal direction, and the bottom of each support cross bar is detachably provided with a plurality of support legs which are arranged at intervals along the transverse direction; the tray comprises a plurality of brackets which are arranged at intervals along the transverse direction, the bottom of each bracket is detachably connected to the tops of a plurality of support cross bars, two ends of each bracket are respectively detachably connected with two support cross bars which are positioned at the outermost side along the longitudinal direction, and any two adjacent brackets are connected through a plurality of connecting rods which are arranged at intervals along the longitudinal direction; the top of each bracket forms a downward sunken arc-shaped supporting surface, and the arc-shaped supporting surface is provided with a plurality of clamping grooves which are arranged at intervals along the longitudinal direction. The nuclear power water tank is not easy to shake when the detachable support tool is placed, and stable placement of the nuclear power water tank is realized.
Description
Technical Field
The utility model relates to the technical field of nuclear power engineering, in particular to a detachable support tool of a nuclear power water tank.
Background
A special nuclear power water tank is used in the construction process of the nuclear power plant, one side of the nuclear power water tank is arc-shaped, and a plurality of ribs are formed on the nuclear power water tank. The supporting tool of the existing nuclear power water tank has poor supporting effect on the nuclear power water tank, and when the nuclear power water tank is stored on the supporting tool, the nuclear power water tank easily shakes on the supporting tool, and the nuclear power water tank cannot be stably placed on the supporting tool.
Disclosure of Invention
The utility model mainly aims to provide a detachable supporting tool for a nuclear power water tank, and aims to solve the technical problem that the nuclear power water tank is easy to shake on the supporting tool and cannot be stably placed on the supporting tool when the nuclear power water tank is stored on the supporting tool in the prior art.
In order to achieve the above object, the utility model provides a detachable support tool for a nuclear power water tank, the detachable support tool for the nuclear power water tank comprises:
the base comprises a plurality of support cross bars which are arranged at intervals along the longitudinal direction, and the bottom of each support cross bar is detachably provided with a plurality of support legs which are arranged at intervals along the transverse direction;
the tray comprises a plurality of brackets, the brackets are arranged at intervals along the transverse direction, the bottom of each bracket is detachably connected to the tops of the plurality of support cross bars, two ends of each bracket are respectively detachably connected with two support cross bars which are positioned at the outermost side along the longitudinal direction, and any two adjacent brackets are connected through a plurality of connecting rods which are arranged at intervals along the longitudinal direction; the top of each bracket forms a downward sunken arc-shaped supporting surface, the arc-shaped supporting surface is used for supporting the nuclear power water tank, the arc-shaped supporting surface is provided with a plurality of clamping grooves which are arranged at intervals longitudinally, and the clamping grooves are used for being in clamping fit with the nuclear power water tank supported on the arc-shaped supporting surface.
Optionally, the bracket includes base and support frame, the base sets up along vertical and its bottom detachably connects in many the top of supporting the horizontal pole, the support frame set up in the top of base, the top of support frame forms the arc holding surface.
Optionally, the support frame includes riser and backup pad, the riser set up in the top of base, the backup pad set up in the top of riser, the backup pad is the arc backup pad of undercut, the upper surface of arc backup pad forms the arc holding surface.
Optionally, two sides of the supporting plate extend out of two sides of the vertical plate respectively along the transverse direction.
Optionally, a plurality of first reinforcing ribs extending vertically are arranged on two sides of the vertical plate, and a plurality of first reinforcing ribs are arranged at intervals longitudinally.
Optionally, the base is the I-steel finished piece, the both sides of the web of base all are provided with a plurality of second strengthening ribs along vertical extension, and a plurality of second strengthening ribs are along vertical interval setting.
Optionally, the end of the link is detachably connected with the corresponding bracket.
Optionally, a connection area is formed between any two adjacent brackets, and each connection area is provided with a plurality of connecting rods which are arranged at intervals along the longitudinal direction; the number of the connecting rods of each connecting region is identical to the number of the connecting rods of the other connecting regions and is opposite to each other.
Optionally, a plurality of lifting lugs arranged at intervals in the transverse direction are arranged on the outer sides of the two outermost support cross bars in the longitudinal direction.
Optionally, a plurality of reinforcement frames are arranged at intervals in the transverse direction on the outer sides of the two outermost support cross bars in the longitudinal direction, and each reinforcement frame corresponds to one supporting leg.
The utility model relates to a detachable supporting tool for a nuclear power water tank ， The top of bracket forms the arc holding surface and supports the nuclear power water tank through in the detachable support frock of nuclear power water tank, and the camber of this arc holding surface can be close or the same with the camber of one side of nuclear power water tank arc, and rib and draw-in groove joint on the nuclear power water tank for the nuclear power water tank can stably support at this detachable support frock, and the supporting effect is good, and the nuclear power water tank is placed and is difficult for rocking on this detachable support frock, places steadily. Through a plurality of connecting rods and a plurality of landing legs, the structural stability of the detachable support tool is improved. In addition, in the detachable support tool for the nuclear power water tank, the supporting legs and the support cross bars and the brackets are connected through bolts, so that the detachable support tool for the nuclear power water tank is repeatedly detachable in structure and convenient to detach.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural view of a detachable support fixture for a nuclear power water tank according to an embodiment of the present utility model;
FIG. 2 is a schematic front view of a bracket in a detachable support tooling for a nuclear power water tank according to one embodiment of the present utility model;
fig. 3 is a partial schematic view of a detachable support tool for a nuclear power water tank according to an embodiment of the utility model.
Reference numerals illustrate:
| reference numerals | Name of the name | Reference numerals | Name of the name |
| 100 | Detachable support tool | 232 | Supporting plate |
| 10 | Base seat | 24 | Clamping groove |
| 11 | Support cross bar | 25 | Arc-shaped supporting surface |
| 12 | Landing leg | 30 | First reinforcing rib |
| 20 | Tray for holding food | 40 | Second reinforcing rib |
| 21 | Bracket | 50 | Connecting rod |
| 22 | Base seat | 60 | Lifting lug |
| 23 | Supporting frame | 70 | Reinforcing frame |
| 231 | Vertical plate |
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in fig. 1), and if the particular posture is changed, the directional indicator is changed accordingly.
In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
The utility model provides a detachable support tool 100 of a nuclear power water tank, wherein the detachable support tool 100 of the nuclear power water tank comprises a base 10 and a tray 20; wherein, the base 10 comprises a plurality of support cross bars 11 which are arranged at intervals along the longitudinal direction, and the bottom of each support cross bar 11 is detachably provided with a plurality of support legs 12 which are arranged at intervals along the transverse direction; the tray 20 comprises a plurality of brackets 21, wherein the brackets 21 are arranged at intervals along the transverse direction, each bracket 21 is arranged along the longitudinal direction, the bottom of each bracket 21 is detachably connected to the top of the plurality of support cross bars 11, two ends of each bracket 21 are respectively detachably connected with two support cross bars 11 which are positioned at the outermost side along the longitudinal direction, and any two adjacent brackets 21 are connected through a plurality of connecting rods 50 which are arranged at intervals along the longitudinal direction; the top of each bracket 21 forms a downward sunken arc-shaped supporting surface 25, the arc-shaped supporting surface 25 is used for supporting a nuclear power water tank, the arc-shaped supporting surface 25 is provided with a plurality of clamping grooves 24 which are arranged at intervals longitudinally, and the clamping grooves 24 are used for being in clamping fit with the nuclear power water tank supported on the arc-shaped supporting surface 25.
As shown in fig. 1 to 3, the vertical direction is the up-down direction in fig. 1, the longitudinal direction is the left-right direction in fig. 1, and the transverse direction is the front-back direction in fig. 1, specifically, the base 10 includes a plurality of support crossbars 11 that are arranged at intervals along the left-right direction, the bottoms of the support crossbars 11 are all provided with a plurality of support legs 12 at intervals along the front-back direction, so that the base 10 has more stress points and good stability. The base 10 is provided with the brackets 21 at intervals along the front-back direction, the tops of the brackets 21 form the arc-shaped supporting surface 25 which is concave downwards, the curvature of the arc-shaped supporting surface 25 can be close to or the same as that of one side of the arc-shaped nuclear power water tank, the arc-shaped supporting surface 25 is provided with the clamping grooves 24 which are arranged at intervals and used for clamping the nuclear power water tank, the clamping grooves 24 are used for clamping ribs on the nuclear power water tank body, the number of the clamping grooves 24 is consistent with that of the ribs and are in one-to-one correspondence with each other, the shape of the arc-shaped supporting surface 25 on the brackets 21 can be matched with that of one side of the arc-shaped nuclear power water tank, the nuclear power water tank is not easy to shake when being placed on the detachable supporting tool 100 of the nuclear power water tank, and the supporting effect is good. A plurality of connecting rods 50 are respectively arranged between the brackets 21 along the left-right direction at intervals, the connecting rods 50 are arranged along the front-back direction, and the connecting rods 50 connect the brackets 21 into a whole, so that the structural stability is good. And all adopt bolted connection between each landing leg 12 and the corresponding support horizontal pole 11, between each bracket 21 and the corresponding support horizontal pole 11, the repeatable dismouting of structure, and easy dismounting.
According to the detachable support tool 100 for the nuclear power water tank, the arc-shaped supporting surface 25 is formed on the top of the bracket 21 in the detachable support tool 100 for the nuclear power water tank to support the nuclear power water tank, the curvature of the arc-shaped supporting surface 25 can be close to or identical to that of one side of the arc shape of the nuclear power water tank, and the rib on the nuclear power water tank is clamped with the clamping groove 24, so that the nuclear power water tank can be stably supported on the detachable support tool 100, the support function is good, the nuclear power water tank is not easy to shake when being placed on the detachable support tool 100, and the placement is stable. By means of the plurality of links 50 and the plurality of legs 12, the structural stability of the detachable support tool 100 is improved. In addition, in the detachable support tool 100 of the nuclear power water tank, the supporting legs 12 and the supporting cross bars 11 and the brackets 21 are connected through bolts, so that the detachable support tool can be repeatedly disassembled and assembled in structure, and is convenient to disassemble and assemble.
In one embodiment, the bracket 21 includes a base 22 and a supporting frame 23, the base 22 is disposed longitudinally and the bottom of the base 22 is detachably connected to the top of the plurality of supporting beams 11, the supporting frame 23 is disposed on the top of the base 22, and the top of the supporting frame 23 forms an arc-shaped supporting surface 25.
Specifically, as shown in fig. 1 to 3, the base 22 is disposed above the plurality of support rails 11 along the left-right direction, the support frame 23 is disposed on the base 22, the support frame 23 is welded on the base 22, the arc-shaped support surface 25 recessed downward is formed above the support frame 23, the bracket 21 is formed by welding the support frame 23 and the base 22, and the bracket 21 is simple to form.
In an embodiment, the supporting frame 23 includes a vertical plate 231 and a supporting plate 232, the vertical plate 231 is disposed on the top of the base 22, the supporting plate 232 is disposed on the top of the vertical plate 231, the supporting plate 232 is a downward concave arc supporting plate 232, and the upper surface of the arc supporting plate 232 forms the arc supporting surface 25.
Specifically, as shown in fig. 1 to 3, the supporting frame 23 includes a vertical plate 231 and a supporting plate 232, the vertical plate 231 is arranged on the base 22, the top of the vertical plate 231 is provided with a downward concave arc-shaped mounting surface, the supporting plate 232 is arranged on the vertical plate 231, the supporting plate 232 is an arc-shaped supporting plate 232, the upper surface of the supporting plate 232 is provided with an arc-shaped supporting surface 25, the curvature of the arc-shaped mounting surface is identical with that of the arc-shaped supporting surface 25, the arc-shaped supporting plate 232 is welded on the arc-shaped mounting surface, the supporting frame 23 is formed by welding the vertical plate 231 and the supporting plate 232, the supporting frame 23 is simple in molding, reasonable in structure and good in supporting effect on the nuclear power water tank.
In one embodiment, the support plate 232 extends laterally beyond the upright plate 231. As shown in fig. 1, the two sides of the supporting plate 232 extend out of the front side and the rear side of the vertical plate 231 respectively, so that the supporting area of the supporting plate 232 is enlarged, the supporting effect on the nuclear power water tank is better, and the stability is higher.
In one embodiment, a plurality of first reinforcing ribs 30 extending in a vertical direction are disposed on both sides of the vertical plate 231, and the plurality of first reinforcing ribs 30 are disposed at intervals in a longitudinal direction. As shown in fig. 1 to 3, a plurality of first reinforcing ribs 30 are disposed on both sides of the vertical plate 231 along the up-down direction, the plurality of first reinforcing ribs 30 are disposed at intervals along the left-right direction, the first reinforcing ribs 30 provide reinforcing effect for the vertical plate 231, and the bending resistance of the vertical plate 231 is improved through the arrangement of the plurality of first reinforcing ribs 30, so that the structural stability is better.
In an embodiment, the base 22 is an i-steel, and two sides of a web of the base 22 are provided with a plurality of second reinforcing ribs 40 extending vertically, and the plurality of second reinforcing ribs 40 are arranged at intervals along the longitudinal direction. As shown in fig. 1 to 3, the base 22 is made of a h-shaped steel, materials are easily available, mechanical properties are good, a plurality of second reinforcing ribs 40 are arranged at two sides of a web plate of the base 22 at intervals along the left-right direction, the second reinforcing ribs 40 provide reinforcing effect for the web plate of the base 22, and the bending resistance of the base 22 is improved through the arrangement of the plurality of second reinforcing ribs 40, so that the structural stability is better.
In one embodiment, the ends of the links 50 are detachably connected to the corresponding brackets 21. Specifically, the end of the link 50 is connected to the corresponding bracket 21 by a bolt, so that the link 50 can be easily assembled and disassembled.
In one embodiment, a connection region is formed between any two adjacent brackets 21, and each connection region is provided with a plurality of connecting rods 50 which are arranged at intervals along the longitudinal direction; the number of the connecting rods 50 in each connecting region is identical to the number of the connecting rods 50 in the other connecting regions and is opposite to each other.
Specifically, as shown in fig. 1, a plurality of connecting rods 50 are arranged in each connecting region, the connecting rods 50 are arranged at intervals along the left-right direction, the number of the connecting rods 50 in each connecting region is consistent with the number of the connecting rods 50 in the other connecting regions and is opposite to each other, the structure is reasonable, better supporting effect can be provided for the bracket 21, and the structural stability is better.
In one embodiment, a plurality of lifting lugs 60 are provided on the outer sides of the two support rails 11 located on the outermost side in the longitudinal direction at intervals in the lateral direction. As shown in fig. 1 and 3, after the detachable support tool 100 of the nuclear power water tank is assembled and formed, the detachable support tool 100 of the nuclear power water tank can be integrally hoisted and transported through the lifting lugs 60, so that the transportation is convenient.
In one embodiment, a plurality of reinforcement frames 70 are provided at intervals in the lateral direction on the outer sides of the two support rails 11 located at the outermost sides in the longitudinal direction, and each reinforcement frame 70 corresponds to one leg 12. As shown in fig. 1 and 3, a plurality of reinforcing frames 70 are formed on the outer sides of two support crossbars 11 located on the outermost sides in the left-right direction, the number of the reinforcing frames 70 is consistent with and corresponds to the number of the support legs 12 at the bottoms of the two support crossbars 11 located on the outermost sides in the left-right direction, one end of each reinforcing frame 70 is installed on the corresponding support crossbars 11, the other end of each reinforcing frame provides support for the corresponding bracket 21, the supporting effect is better, the reinforcing frames 70 are arranged corresponding to the support legs 12, acting force of the corresponding bracket 21 can be directly transmitted to the corresponding support legs 12, and the structural stability is better.
The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all equivalent structural modifications made by the present description and accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the present utility model.
Claims (10)
1. Detachable support tooling of nuclear power water tank, its characterized in that, detachable support tooling of nuclear power water tank includes:
the base comprises a plurality of support cross bars which are arranged at intervals along the longitudinal direction, and the bottom of each support cross bar is detachably provided with a plurality of support legs which are arranged at intervals along the transverse direction;
the tray comprises a plurality of brackets, the brackets are arranged at intervals along the transverse direction, the bottom of each bracket is detachably connected to the tops of the plurality of support cross bars, two ends of each bracket are respectively detachably connected with two support cross bars which are positioned at the outermost side along the longitudinal direction, and any two adjacent brackets are connected through a plurality of connecting rods which are arranged at intervals along the longitudinal direction; the top of each bracket forms a downward sunken arc-shaped supporting surface, the arc-shaped supporting surface is used for supporting the nuclear power water tank, the arc-shaped supporting surface is provided with a plurality of clamping grooves which are arranged at intervals longitudinally, and the clamping grooves are used for being in clamping fit with the nuclear power water tank supported on the arc-shaped supporting surface.
2. The detachable support tooling of a nuclear power water tank of claim 1, wherein the bracket comprises a base and a support frame, the base is longitudinally arranged and the bottom of the base is detachably connected to the tops of the plurality of support cross bars, the support frame is arranged on the tops of the base, and the tops of the support frame form the arc-shaped support surface.
3. The detachable support tool of the nuclear power water tank according to claim 2, wherein the support frame comprises a vertical plate and a support plate, the vertical plate is arranged at the top of the base, the support plate is arranged at the top of the vertical plate, the support plate is an arc support plate which is sunken downwards, and the upper surface of the arc support plate forms the arc support surface.
4. A detachable support tooling for a nuclear power water tank as claimed in claim 3, wherein the two sides of the support plate extend laterally beyond the two sides of the riser respectively.
5. The detachable support tool of the nuclear power water tank of claim 3, wherein a plurality of first reinforcing ribs extending vertically are arranged on two sides of the vertical plate, and the plurality of first reinforcing ribs are arranged at intervals longitudinally.
6. The detachable support tool of a nuclear power water tank according to claim 2, wherein the base is an I-steel part, a plurality of second reinforcing ribs extending vertically are arranged on two sides of a web plate of the base, and the second reinforcing ribs are arranged at intervals longitudinally.
7. A nuclear power tank detachable support tooling as claimed in any one of claims 1 to 6 wherein ends of said links are detachably connected to corresponding said brackets.
8. The detachable support tooling of a nuclear power water tank of claim 7, wherein a connection area is formed between any two adjacent brackets, each connection area having a plurality of said links arranged at intervals in a longitudinal direction; the number of the connecting rods of each connecting region is identical to the number of the connecting rods of the other connecting regions and is opposite to each other.
9. A detachable support tooling for a nuclear power water tank as claimed in any one of claims 1 to 6, wherein a plurality of lifting lugs are arranged on the outer sides of two support crossbars which are located on the outermost side in the longitudinal direction at intervals in the transverse direction.
10. A detachable support tool for a nuclear power water tank as claimed in any one of claims 1 to 6, wherein a plurality of reinforcing frames are arranged at intervals in the transverse direction on the outer sides of two support crossbars which are positioned on the outermost side in the longitudinal direction, and each reinforcing frame corresponds to one supporting leg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321996729.XU CN220249528U (en) | 2023-07-27 | 2023-07-27 | Detachable support tool for nuclear power water tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321996729.XU CN220249528U (en) | 2023-07-27 | 2023-07-27 | Detachable support tool for nuclear power water tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220249528U true CN220249528U (en) | 2023-12-26 |
Family
ID=89230670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321996729.XU Active CN220249528U (en) | 2023-07-27 | 2023-07-27 | Detachable support tool for nuclear power water tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220249528U (en) |
-
2023
- 2023-07-27 CN CN202321996729.XU patent/CN220249528U/en active Active
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