CN210666010U - Radar wave stealth ventilating device - Google Patents
Radar wave stealth ventilating device Download PDFInfo
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- CN210666010U CN210666010U CN201921577544.9U CN201921577544U CN210666010U CN 210666010 U CN210666010 U CN 210666010U CN 201921577544 U CN201921577544 U CN 201921577544U CN 210666010 U CN210666010 U CN 210666010U
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Abstract
The utility model relates to a radar wave stealth ventilating device, which comprises a ventilating device body, wherein the body comprises an upper four-surface terrace with edges and a lower four-surface terrace with edges which are symmetrically arranged, four surfaces of the upper four-surface terrace with the lower four-surface terrace with edges are symmetrical in pairs, and two surfaces are longer; the body is provided with air holes, and the outer side of the body is provided with an air hole baffle; the upper part of the body is provided with a body cover plate, the interior of the body is provided with a hollow trapezoid-shaped floater supporting part, the vertical section of the body is in an isosceles trapezoid shape, the lower surface of the body is a flat-plate-shaped floater supporting plate, and two parallel trapezoid surfaces of the floater supporting part are provided with trapezoid holes; a closed air channel is formed between the trapezoidal hole and the body; the middle part of the floater supporting plate is provided with a threaded connecting part, a guide bolt is fixed on the threaded connecting part, a floater is sleeved on the bolt, a sealing ring fixing part is arranged in the body, a sealing ring is fixed on the sealing ring fixing part, and a filter screen is arranged on a trapezoidal hole of the floater supporting part. The utility model has the advantages of, adopt terrace with edge shape structure, reduce the assembly parts, reduce ventilative device's RCS value.
Description
Technical Field
The utility model relates to a boats and ships ventilation unit field, especially a radar wave stealthy ventilative device.
Background
During the process of executing tasks of the ship, stealth needs often exist, and the radar detection is still the main detection means at present, so that radar stealth is still the most important; in the design process of boats and ships, except optimizing holistic ship type structure, change the traditional structure of naval vessel, reduce direct specular reflection, strong reflection sources such as antenna and boats and ships fitting-out spare are also carried out stealthy design like mast, lamps and lanterns, winch, ladder, ventilative cap. The Radar Cross Section (RCS) is a characteristic for representing the stealth performance of a target Radar wave, and the main method for reducing the RCS of the target comprises the following steps: the radar stealth technology can be realized by changing the appearance, the material structure and the electromagnetic characteristic of the target. The ventilating device of the oil and water tanks on the ship has large volume and large quantity, is arranged above an open deck, is generally difficult to change the arrangement position, can not adopt a shielding device such as a stealth cover due to the functional requirement, and is generally coated with wave-Absorbing materials (RAM) on the surface of the ship in most cases at present, but the structural surface of the ship still has more protrusions, depressions, steps and the like, and under the condition of not changing the structure, more scattering sources exist, and even if the RAM is coated, the RCS is still reduced and adversely affected.
The ventilative device commonly used at present generally is like chinese utility model patent: marine air pipe head (grant No.: CN201614011U) and chinese patent application for invention: a floating ball type air pipe head for ship (application publication No. CN108799586A) is disclosed, which has a cylindrical or square shell, and has more plate structures, openings and assembling parts on the outer shell, and generates a great deal of mirror scattering when radar waves or sound waves are reflected.
Some related outfitting parts on ships adopt stealth design, for example, the Chinese patent application: the structure disclosed by the ship stealth lamp (application publication number: CN106741715A) comprises a body, a mounting bracket and a luminous body, wherein the body comprises an edge bucket-shaped structural body and a luminous body mounting panel, the luminous body mounting panel and the edge bucket-shaped structural body are connected to form a hollow cavity, the luminous body is detachably mounted on the luminous body mounting panel, the mounting bracket is arranged on one surface of the edge bucket-shaped structural body, the other surface of the edge bucket-shaped structural body opposite to the surface shields the luminous body, the edge bucket-shaped structural body is formed by encircling 4 triangular panels, any two adjacent triangular panels are not mutually perpendicular, and the structure can play a certain scattering role; also as the Chinese utility model patent: metal stealth window (grant publication number: CN203570142U) and Chinese invention patent application: a structure disclosed in a marine louver (application publication No. CN106494602A) or the like, which can provide a certain stealth effect by using a ridge-shaped outer surface of a window frame or a shielding net structure, but cannot be completely adapted to the stealth requirement of a ventilation device.
Therefore, certain improvement is made on the radar wave stealth structure of the ventilation device.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a radar wave stealthy ventilative device can reduce the assembly position, adopts the polyhedral structure to replace dull and stereotyped structure, reduces ventilative device's RCS value.
In order to achieve the purpose of the utility model, the radar wave stealth ventilation device comprises a ventilation device body, wherein the body is of a hollow polyhedral structure and comprises an upper four-surface terrace and a lower four-surface terrace which are symmetrically arranged, each surface of the upper four-surface terrace is inclined inwards by the same fixed angle, and each surface of the lower four-surface terrace is inclined outwards by the same fixed angle; the four surfaces of the upper four-surface terrace with the lower four-surface terrace are symmetrical pairwise, wherein two surfaces are longer, and the other two surfaces are shorter;
air holes are formed in the connecting parts of the two longer surfaces of the upper four-surface terrace and the lower four-surface terrace, air hole baffles are arranged on the outer sides of the air holes, and the air hole baffles are fixed on the two longer surfaces of the upper four-surface terrace and the lower four-surface terrace;
the air hole baffle is provided with four closed surfaces, wherein a first side surface and a second side surface are symmetrically arranged and are fixedly connected with two longer surfaces connected with the upper four-surface terrace and the lower four-surface terrace; the top surface is an isosceles trapezoid and fixedly connected with the first side surface and the second side surface, and the top surface is parallel to the longer surface of the upper four-surface terrace; the upper part of the air hole baffle is provided with a fixed surface which is connected with the first side surface, the second side surface and the top surface and is fixed on the upper four-side terrace;
the bottom of the body is hollow and is connected with an installation flange; the upper part of the body is provided with an opening, a body cover plate is arranged on the opening, the body cover plate is fixed on the body through a fastening piece, and the upper surface of the fastening piece is flush with the upper surface of the body cover plate;
the air vent baffle plate is characterized in that a float bearing part is arranged inside the body, the float bearing part is a hollow trapezoid body, the vertical section of the float bearing part is isosceles trapezoid, the upper surface and the lower surface of the float bearing part are fixedly connected with the inner parts of two longer surfaces, namely the upper four-surface prismatic table and the lower four-surface prismatic table, the upper surface of the float bearing part is flush with the fixed surface of the air vent baffle plate, and the lower surface of the float bearing part is flush with the lower part of the top surface of the air vent baffle plate; the upper surface of the floater supporting part is hollow, the lower surface of the floater supporting part is a flat-plate-shaped floater supporting plate, and two parallel trapezoidal surfaces of the floater supporting part are provided with trapezoidal holes corresponding to the air holes; four sides of the trapezoidal hole extend to the inner surface of the body in the direction of the air vent, and a closed air channel is formed between the trapezoidal hole and the body; a ventilation channel is formed among a gap between the floater supporting part and two shorter surfaces connected with the upper four-surface terrace and the lower four-surface terrace, an opening at the upper part of the floater supporting part, the trapezoid hole and the ventilation hole;
the middle part of the floater supporting plate is provided with a thread connecting part protruding downwards, a guide bolt is fixed on the thread connecting part, threads are only arranged at the contact part of the thread connecting part of the guide bolt, the guide bolt is matched with the thread connecting part, the part extending upwards is a polished rod, a floater is sleeved on the polished rod, and the floater can move up and down along the guide bolt;
a sealing ring fixing part is arranged in the body above the floater supporting part, a sealing ring is fixed on the sealing ring fixing part, and the inner diameter of the sealing ring is smaller than the diameter of a central section circle of the floater; and a filter screen matched with the shape of the trapezoid hole of the floater supporting part is arranged on the trapezoid hole.
Further, the body cover plate is rectangular or circular.
Further, the floater is shaped like an oblate cake.
Further, the floater is in a spherical shape.
Furthermore, a guide sleeve is arranged in the middle of the floater, and the guide sleeve is sleeved on the guide bolt.
Further, the filter screen is a metal grid mesh.
Furthermore, one end of the filter screen is clamped to the floater bearing part, and the other end of the filter screen is fixed on the floater supporting plate through a bolt.
Further, the fixed angle is 12 degrees.
When the radar wave stealth ventilating device is produced, the body, the floater bearing part, the air vent baffle and the like in the body are integrally cast, so that the assembly parts, particularly the air vent baffle, can be reduced, additional fixation is not needed, and the use of screws is reduced; during assembly, a guide bolt is fixed on the threaded connecting part from a cavity at the lower part of the body, then the floater is sleeved on the guide bolt, if the floater is provided with a guide sleeve, the guide sleeve is sleeved on the guide bolt, the sealing ring is fixed above the body after the floater is installed, then the body cover plate is fixed on the body, and the operation is carried out according to the opposite sequence during maintenance; when the ventilating device is in normal use, the floater is positioned on the floater supporting plate, and air in the cabin circulates through a gap between two shorter surfaces, connected with the upper four-surface terrace and the lower four-surface terrace, of the floater supporting part and an air channel formed among an opening at the upper part of the floater supporting part, the trapezoidal hole and the air hole; in case of emergency such as seawater filling, the floater is supported after seawater enters and is tightly propped against the sealing ring, the air channel is cut off, water cannot enter the cabin from the ventilating device, a water passing channel is formed between the corresponding trapezoidal holes at the two sides, and the water directly flows out from the other side after entering from one side; after the water level is reduced, the floater falls back to the floater supporting plate below the floater supporting part, and the ventilation device works normally again.
Because the radar wave stealth ventilating device of the utility model adopts the frustum pyramid structure, the outside only assembles the body cover plate, and countersunk head bolts and the like are used, the reflection source is reduced to the maximum extent; the appearance of the ventilating device and each side wall in the cavity are inclined at a certain angle so as to avoid a dihedral angle or a trilateral angle structure, a strong scattering source is weakened to be a weak scattering source, a large flat plate structure is replaced by a polyhedral structure, more diffuse reflection is formed, the RCS value can be fully reduced, and a good radar wave stealth effect is achieved.
The utility model relates to a radar wave stealth ventilative device compares with prior art and has following advantage:
(1) the original cubic structure is deformed into a polyhedral structure, so that the large flat plate surface is reduced, the incident radar waves are changed from specular reflection into diffuse reflection, and the RCS value of the ventilation device is reduced;
(2) the shell is integrally formed, so that the number of assembly parts is reduced, and only the upper part of the shell is provided with the end cover, so that the number of scattering sources is reduced;
(3) be equipped with the metal grid net on trapezoidal hole, shelter from ventilative mouthful, in addition with the sheltering from of the bleeder vent baffle of body integration for the echo that the radar wave produced in air passage is showing and is reducing.
Drawings
Fig. 1 is a schematic structural view of a radar wave stealth ventilation device of the present invention;
fig. 2 is another schematic structural view of the radar wave stealth ventilation device of the present invention;
FIG. 3 is a side sectional view of the radar wave stealth ventilation apparatus of the present invention;
fig. 4 is a front view and a half sectional view of the radar wave invisible and breathable device of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-4, the radar wave stealth ventilation device of the present invention comprises a ventilation device body 1, wherein the body 1 is a hollow polyhedral structure, and comprises an upper four-surface terrace 11 and a lower four-surface terrace 12 which are symmetrically arranged, each surface of the upper four-surface terrace 11 is inclined inwards by the same fixed angle, and each surface of the lower four-surface terrace 12 is inclined outwards by the same fixed angle; four surfaces of the upper four-surface terrace with edge 11 and the lower four-surface terrace with edge 12 are symmetrical pairwise, wherein two surfaces are longer, and the other two surfaces are shorter; preferably, the fixed angle is 12 degrees, and by adopting the angle, the RCS value of the ventilation device can be reduced to the maximum extent;
the vent baffle 14 has four closed surfaces, wherein the first side surface 141 and the second side surface 142 are symmetrically arranged and are fixedly connected with two longer surfaces connected with the upper four-surface terrace 11 and the lower four-surface terrace 12; the top surface 143 is an isosceles trapezoid, fixedly connects the first side surface 141 and the second side surface 142, and is parallel to the longer surface of the upper four-sided prism table 11; a fixing surface 144 connected to the first side surface 141, the second side surface 142, and the top surface 143 and fixed to the upper four-sided prism 11 is provided on the upper portion of the vent hole blocking plate 14;
the bottom of the body 1 is hollow and is connected with an installation flange 15; the upper opening of the body 1 is provided with a body cover plate 16, the body cover plate 16 can be rectangular or round, and is fixed on the body 1 through fasteners such as countersunk head screws or flat head screws, the height of the fasteners is not more than the upper surface of the body cover plate 16, generally, the upper surface of the fasteners is flush with the upper surface of the body cover plate 16, so that the assembly positions can be connected as much as possible, and scattering sources are reduced; the opening at the upper part of the body 1 is mainly used for facilitating the operations of installation, maintenance and the like in the body 1;
the inside of the body 1 is provided with a float supporting part 17, the float supporting part 17 is a hollow trapezoid body, the vertical section of the float supporting part 17 is isosceles trapezoid, the upper surface and the lower surface are fixedly connected with the inner parts of two longer surfaces of the upper four-surface prismoid 11 and the lower four-surface prismoid 12, the upper surface is flush with the fixing surface 144 of the air vent baffle plate 14, and the lower surface is flush with the lower part of the top surface 143 of the air vent baffle plate 14; the upper surface is hollow, the lower surface is a flat-plate-shaped floater supporting plate 171, and two parallel trapezoidal surfaces of the floater supporting part 17 are provided with trapezoidal holes corresponding to the air holes 13; four sides of the trapezoidal hole extend towards the direction of the air vent 13 and are connected with the inner surface of the body 1, namely, a closed air channel is formed between the trapezoidal hole and the body 1, and air can enter from the trapezoidal hole and is discharged from the air vent 13 on the body 1; a ventilation channel is formed between the gap between the floater support part 17 and two shorter surfaces connected with the upper four-surface terrace with edges 11 and the lower four-surface terrace with edges 12, and between the opening at the upper part of the floater support part 17, the trapezoid hole and the ventilation hole 13;
a downward-convex threaded connecting part 172 is arranged in the middle of the float supporting plate 171, a guide bolt 2 is fixed on the threaded connecting part 172, threads are arranged on the guide bolt 2 only at the contact part of the threaded connecting part 17 and matched with the threaded connecting part 172, the part extending upwards is a polished rod, and a float 3 is sleeved on the polished rod;
the floater 3 is generally shaped like an oblate cake and can move up and down along the guide bolt 2, preferably, a guide sleeve 31 is arranged in the middle of the floater, and the guide sleeve 31 is sleeved on the guide bolt 2 so that the floater can move on the guide bolt 2 in a balanced manner;
a sealing ring fixing part is arranged in the body 1 above the floater supporting part 17, a sealing ring 4 is fixed on the sealing ring fixing part, and the inner diameter of the sealing ring 4 is smaller than the diameter of a central section circle of the floater 3; the filter screen 5 matched with the shape of the floater bearing part 17 is arranged on the trapezoid hole of the floater bearing part 17, the filter screen 5 can be arranged in a structure similar to the filter screen of the range hood, one end of the filter screen is clamped on the floater bearing part 17, and the other end of the filter screen is fixed on the floater supporting plate 171 at the lower part of the floater bearing part 17 through a bolt.
When the radar wave stealth ventilating device is produced, the body 1, the floater supporting part 17, the air vent baffle 14 and the like in the body 1 are integrally cast, so that the assembly parts, particularly the air vent baffle 14, can be reduced, additional fixation is not needed, and the use of screws is reduced; during assembly, the guide bolt 2 is fixed on the threaded connection part 172 from a cavity at the lower part of the body 1, then the floater 3 is sleeved on the guide bolt 2, if the floater 3 is provided with the guide sleeve 31, the guide sleeve 31 is sleeved on the guide bolt 2, the sealing ring 4 is fixed above the body 1 after the floater 3 is installed, then the body cover plate 16 is fixed on the body 1, and the operation is carried out according to the opposite sequence during maintenance; when the ventilating device is in normal use, the floater 3 is positioned on the floater supporting plate 171, and air in the cabin circulates through a gap between two shorter surfaces of the floater supporting part 17, the upper four-surface terrace 11 and the lower four-surface terrace 12, and an air channel formed between an opening at the upper part of the floater supporting part 17, a trapezoidal hole and the ventilating hole 13; in case of emergency such as seawater filling, the floater 3 is supported after seawater enters and is tightly propped against the sealing ring 4, an air channel is cut off, water cannot enter the cabin from the ventilating device, a water passing channel is formed between the corresponding trapezoidal holes at two sides, and the water directly flows out from the other side after entering from one side; after the water level drops, the float 3 falls back to the float support plate 171 below the float support 17, and the ventilation device works normally again.
Because the radar wave stealth ventilating device of the utility model adopts the frustum pyramid structure, the outside only assembles the body cover plate 16, and countersunk head bolts and the like are used, the reflection source is reduced to the maximum extent; the appearance of the ventilating device and each side wall in the cavity are inclined at a certain angle so as to avoid a dihedral angle or a trilateral angle structure, a strong scattering source is weakened to be a weak scattering source, a large flat plate structure is replaced by a polyhedral structure, more diffuse reflection is formed, the RCS value can be fully reduced, and a good radar wave stealth effect is achieved.
In the description of the present specification, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of describing the technical solutions of the present patent and for simplification of the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be interpreted as limiting the present patent application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this patent application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In this specification, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present specification can be understood by those of ordinary skill in the art as appropriate.
In this specification, unless explicitly stated or limited otherwise, a first feature may be "on" or "under" a second feature such that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (7)
1. A radar wave stealth ventilation device is characterized by comprising a ventilation device body, wherein the body is of a hollow polyhedral structure and comprises an upper four-surface terrace and a lower four-surface terrace which are symmetrically arranged, each surface of the upper four-surface terrace is inwards inclined by the same angle, and each surface of the lower four-surface terrace is outwards inclined by the same angle; the four surfaces of the upper four-surface terrace with the lower four-surface terrace are symmetrical pairwise, wherein two surfaces are longer, and the other two surfaces are shorter;
air holes are formed in the connecting parts of the two longer surfaces of the upper four-surface terrace and the lower four-surface terrace, air hole baffles are arranged on the outer sides of the air holes, and the air hole baffles are fixed on the two longer surfaces of the upper four-surface terrace and the lower four-surface terrace;
the air hole baffle is provided with four closed surfaces, wherein a first side surface and a second side surface are symmetrically arranged and are fixedly connected with two longer surfaces connected with the upper four-surface terrace and the lower four-surface terrace; the top surface is an isosceles trapezoid and fixedly connected with the first side surface and the second side surface, and the top surface is parallel to the longer surface of the upper four-surface terrace; the upper part of the air hole baffle is provided with a fixed surface which is connected with the first side surface, the second side surface and the top surface and is fixed on the upper four-side terrace;
the bottom of the body is hollow and is connected with an installation flange; the upper part of the body is provided with an opening, a body cover plate is arranged on the opening, the body cover plate is fixed on the body through a fastening piece, and the upper surface of the fastening piece is flush with the upper surface of the body cover plate;
the air vent baffle plate is characterized in that a float bearing part is arranged inside the body, the float bearing part is a hollow trapezoid body, the vertical section of the float bearing part is isosceles trapezoid, the upper surface and the lower surface of the float bearing part are fixedly connected with the inner parts of two longer surfaces, namely the upper four-surface prismatic table and the lower four-surface prismatic table, the upper surface of the float bearing part is flush with the fixed surface of the air vent baffle plate, and the lower surface of the float bearing part is flush with the lower part of the top surface of the air vent baffle plate; the upper surface of the floater supporting part is hollow, the lower surface of the floater supporting part is a flat-plate-shaped floater supporting plate, and two parallel trapezoidal surfaces of the floater supporting part are provided with trapezoidal holes corresponding to the air holes; four sides of the trapezoidal hole extend to the inner surface of the body in the direction of the air vent, and a closed air channel is formed between the trapezoidal hole and the body; a ventilation channel is formed among a gap between the floater supporting part and two shorter surfaces connected with the upper four-surface terrace and the lower four-surface terrace, an opening at the upper part of the floater supporting part, the trapezoid hole and the ventilation hole;
the middle part of the floater supporting plate is provided with a thread connecting part protruding downwards, a guide bolt is fixed on the thread connecting part, threads are only arranged at the contact part of the thread connecting part of the guide bolt, the guide bolt is matched with the thread connecting part, the part extending upwards is a polished rod, a floater is sleeved on the polished rod, and the floater can move up and down along the guide bolt;
a sealing ring fixing part is arranged in the body above the floater supporting part, a sealing ring is fixed on the sealing ring fixing part, and the inner diameter of the sealing ring is smaller than the diameter of a central section circle of the floater; and a filter screen matched with the shape of the trapezoid hole of the floater supporting part is arranged on the trapezoid hole.
2. The radar wave stealth venting device of claim 1, wherein the body cover is rectangular or circular.
3. The radar wave stealth vent of claim 1, wherein the float is shaped as an oblate pie.
4. The radar wave stealth venting device of claim 1, wherein the float is spherical.
5. The radar wave stealth ventilation device according to claim 3 or 4, wherein a guide sleeve is arranged in the middle of the float, and the guide sleeve is sleeved on the guide bolt.
6. The radar wave stealth breather of claim 1, wherein the screen is a metal mesh.
7. The radar wave stealth venting device of claim 6, wherein one end of the filter screen is snap-fitted to the float support and the other end is fixed to the float support by a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921577544.9U CN210666010U (en) | 2019-09-20 | 2019-09-20 | Radar wave stealth ventilating device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921577544.9U CN210666010U (en) | 2019-09-20 | 2019-09-20 | Radar wave stealth ventilating device |
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| CN210666010U true CN210666010U (en) | 2020-06-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115195945A (en) * | 2022-07-18 | 2022-10-18 | 上海船舶研究设计院（中国船舶工业集团公司第六0四研究院） | Marine container stand with ventilative and overflow function |
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2019
- 2019-09-20 CN CN201921577544.9U patent/CN210666010U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115195945A (en) * | 2022-07-18 | 2022-10-18 | 上海船舶研究设计院（中国船舶工业集团公司第六0四研究院） | Marine container stand with ventilative and overflow function |
| CN115195945B (en) * | 2022-07-18 | 2024-01-26 | 上海船舶研究设计院（中国船舶工业集团公司第六0四研究院） | Marine container stand column with ventilation and overflow functions |
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