CN115853100B - Light high-strength stainless steel grating - Google Patents
Light high-strength stainless steel grating Download PDFInfo
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- CN115853100B CN115853100B CN202211490252.8A CN202211490252A CN115853100B CN 115853100 B CN115853100 B CN 115853100B CN 202211490252 A CN202211490252 A CN 202211490252A CN 115853100 B CN115853100 B CN 115853100B
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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Abstract
The application relates to the technical field of grids, and provides a light high-strength stainless steel grid, which comprises a mounting frame, wherein a longitudinal grid piece which is turned left and right is erected in the middle of the mounting frame, a transverse grid piece which is turned front and back is connected above the longitudinal grid piece, two positioning mechanisms are symmetrically arranged on two sides of the mounting frame, the longitudinal grid piece is clamped and fixed in the mounting frame through swinging deformation of the positioning mechanisms, and meanwhile, the mounting frame is clamped and fixed in a sewer opening. Through the footboard pushing down, extrude two crisscross swinging arms, make the swinging arms extrude the block simultaneously to vertical grid piece and sewer inner wall, not only form an extruded effort to the installing frame, inwards carry out the centre gripping location to the vertical grid piece of installing in the installing frame, avoid the installing frame to carry out the skew of horizontal direction in the sewer mouth inside, improved the fixed effect of steel grating, and carry out detachable fixedly to vertical grid piece, the dismouting maintenance of the vertical grid piece of being convenient for.
Description
Technical Field
The application relates to the technical field of grids, in particular to a light high-strength stainless steel grid.
Background
The steel grating plate is a steel product with square lattices in the middle, and is mainly used as a ditch cover plate, a steel structure platform plate, a step plate of a steel ladder and the like, and the cross bars are generally made of twisted square steel.
The sewage gets into in the grid pond and sieves impurity, but because the impurity in the domestic sewage is too much, the grid board often blocks up, needs the workman to salvage the impurity on the grid board this moment, and the work of sieving just can go on, and the fixed mode of present steel grid board installation falls into welding and mounting clip mode: the welding mode is that the steel grating plate is directly welded on the supporting beam, but the welding is easy to damage a zinc layer on the surface of the steel grating plate, so that the corrosion resistance is reduced; the installation of the installation clamp is limited by the self constructional characteristics and the structural form of the supporting beam, and the installation clamp needs to be installed again correspondingly, so that certain limitation exists.
We have therefore improved on this by proposing a lightweight high strength stainless steel grid.
Disclosure of Invention
The technical problems to be solved by the application are as follows: the grid adopts welded mode installation inconvenient to carry out convenient installation and dismantlement to the grid, can't be quick convenient demolish the clearance of grid, and the grid is easy to block up in the use.
(II) technical scheme
In order to achieve the aim of the application, the application provides a light high-strength stainless steel grating, which comprises a mounting frame, wherein a left-right turned longitudinal grating sheet is erected in the middle of the mounting frame, a front-back turned transverse grating sheet is connected above the longitudinal grating sheet, two positioning mechanisms are symmetrically arranged on two sides of the mounting frame, and the positioning mechanisms are in swing deformation to clamp and fix the longitudinal grating sheet in the mounting frame and clamp and fix the mounting frame in a sewer opening.
The installation frame comprises a frame-shaped steel frame, installation grooves are formed in two ends of the steel frame, a partition plate is connected to the middle of each installation groove, operation holes are formed in the lower portions of two side walls of each installation groove at equal intervals, and a rotating shaft is connected to one side of the steel frame.
Wherein, positioning mechanism includes the footboard, the bottom of footboard is connected with the connecting plate, the connecting plate pierces through the baffle and connects in the below of mounting groove, just the bottom of connecting plate is connected with the extrusion pole, the both ends symmetry of extrusion pole is connected with the telescopic link, telescopic link fixed connection is in the baffle bottom surface, the outside of extrusion pole has cup jointed the swing board of crossing, the connecting rod has been cup jointed in the bottom rotation of swing board, the both ends fixedly connected with baffle of connecting rod, the inside at the mounting groove is fixed to the baffle.
The transverse grid plates comprise a plurality of transverse grid bars with certain intervals, the bottoms of the transverse grid bars are connected with positioning rods and cleaning bars, and the front ends of the transverse grid bars are connected with rotating frames.
The vertical grid plate comprises a frame, one side of the frame is connected with a rotating sleeve sleeved with a rotating shaft, the front end of the frame is connected with a rotating rod sleeved with the rotating frame in a rotating mode, the middle of the frame is connected with a plurality of vertical grid bars with certain intervals, trapezoidal protrusions consistent with the space width of the horizontal grid bars are arranged on the upper surface of the vertical grid bars in a protruding mode, and positioning holes sleeved with positioning rods are formed in the upper ends of the vertical grid bars in a downward mode.
The swing plate is composed of two groups of waist-shaped plates which are intersected into an X shape, and a waist-shaped hole is formed in the middle of the swing plate.
Wherein the operation holes are uniformly formed on two sides of the mounting groove and correspondingly connected with the two crossed groups of swinging plates.
The cleaning strips are clamped on two side surfaces of the longitudinal grid strips in pairs, and brushes are arranged on the lower half sections of the cleaning strips.
The upper surface of the pedal is provided with wavy protection waves, and the upper surface of the pedal is flush with the upper surface of the steel frame after the pedal is pressed into the installation groove.
(III) beneficial effects
The light high-strength stainless steel grating provided by the application has the beneficial effects that:
1. through trampling footboard downwardly promoting connecting plate and squeeze lever, when the squeeze lever pushes down, will extrude two swing boards of crossing for the swing board outwards slides and passes through the operation hole of both sides and extrudees the block simultaneously to vertical grid piece and sewer inner wall, not only forms an extruded effort to the installing frame, and fixed mounting frame is at the inside stability of sewer mouth, and inwards carries out the centre gripping location to the vertical grid piece of installing in the installing frame moreover, avoids the installing frame to carry out the skew of horizontal direction in the sewer mouth inside, has improved the fixed effect of steel grating, and fixes vertical grid piece, avoids vertical grid piece to appear overturning.
2. When article drop or jam appears in the crossing of sewer and grid inside, avoid demolising the grid is whole, utilize horizontal grid piece and vertical grid piece to carry out the effect of going up and controlling the ascending bilayer dismantlement of direction, upwards pull the footboard, make the squeeze lever drive the swing board and retrieve to inside swing, thereby can make the smooth quilt of steel grid dismantle, be convenient for take out and clear up article and rubbish inside the grid, and also guaranteed self can be used once more, not only reduced the loss of resource, also improved the dismantlement efficiency of steel grid.
3. Through overlapping horizontal grid piece and vertical grid piece and alternately placing to take the grafting between locating lever and the locating hole to connect, avoid horizontal grid piece and vertical grid piece to extrude the collision in the use and produce the noise, and be connected with the clearance strip in the bottom of horizontal grid piece, the clearance strip downwardly extending carries out sliding connection with the side of vertical grid piece, makes horizontal grid piece clear up vertical grid piece inner wall in the in-process of turning from top to bottom, avoids appearing piling up and attaching of dust on the vertical grid piece.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the application, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.
FIG. 1 is a schematic view of a light high-strength stainless steel grille according to the present application;
FIG. 2 is a schematic diagram of the overturn of a lightweight high-strength stainless steel grating provided by the application;
FIG. 3 is an exploded view of a lightweight high strength stainless steel grating according to the present application;
FIG. 4 is a schematic view of a positioning mechanism for a lightweight high strength stainless steel grating according to the present application;
FIG. 5 is an exploded view of a positioning mechanism for a lightweight high strength stainless steel grating according to the present application;
FIG. 6 is a schematic view of transverse grid plates of a lightweight high strength stainless steel grid provided by the present application;
FIG. 7 is a schematic view of the longitudinal grid plates of a lightweight high strength stainless steel grid provided by the present application;
FIG. 8 is a partial schematic view of a positioning mechanism for a lightweight high strength stainless steel grating according to the present application;
FIG. 9 is a schematic view of a light high strength stainless steel grating according to the present application;
FIG. 10 is a schematic view of a light high strength stainless steel grid according to the present application at B;
fig. 11 is a schematic view of a light high-strength stainless steel grating at C.
In the figure: 1. a mounting frame; 11. a steel frame; 12. a mounting groove; 13. a partition plate; 14. an operation hole; 15. a rotating shaft; 2. a positioning mechanism; 21. a pedal; 22. a connecting plate; 23. an extrusion rod; 24. a telescopic rod; 25. a swinging plate; 26. a connecting rod; 27. a baffle; 3. transverse grid plates; 31. transverse grid bars; 32. a positioning rod; 33. cleaning the strip; 34. a rotating frame; 4. longitudinal grid plates; 41. a frame; 42. longitudinal grid bars; 43. a rotating sleeve; 44. and positioning holes.
Detailed Description
The following detailed description of specific embodiments of the application is provided in connection with the accompanying drawings and examples. The following examples are only illustrative of the present application and are not intended to limit the scope of the application.
As shown in fig. 1-11, this embodiment provides a light-duty high strength stainless steel grid, including installing frame 1, the middle part of installing frame 1 erects and is connected with the vertical grid piece 4 of controlling the upset, and the top of vertical grid piece 4 is connected with the horizontal grid piece 3 of fore-and-aft upset, and two positioning mechanism 2 are installed to the bilateral symmetry of installing frame 1, and positioning mechanism 2 swing deformation is fixed vertical grid piece 4 chucking in the inside of installing frame 1, fixes installing frame 1 chucking at the crossing down simultaneously.
The installation frame 1 includes the steelframe 11 of frame shape, the both ends of steelframe 11 are equipped with mounting groove 12, the middle part of mounting groove 12 is connected with baffle 13, the operation hole 14 has been seted up to the equal interval in two lateral walls below of mounting groove 12, one side of steelframe 11 is connected with axis of rotation 15, the setting of installation frame 1 is convenient for connect horizontal grid piece 3 and vertical grid piece 4, connect horizontal grid piece 3 and vertical grid piece 4 after installation frame 1 is inside, carry out the lug connection with the assembled device through installation frame 1 and sewer mouth, guarantee that horizontal grid piece 3 and vertical grid piece 4 are swift convenient at the connection process, and set up mounting groove 12 and operation hole 14 in the both sides of steelframe 11, install positioning mechanism 2 through mounting groove 12 and operation hole 14.
The positioning mechanism 2 comprises a pedal 21, the bottom of the pedal 21 is connected with a connecting plate 22, the connecting plate 22 penetrates through a partition 13 to be connected below a mounting groove 12, the bottom of the connecting plate 22 is connected with a squeezing rod 23, two symmetrical ends of the squeezing rod 23 are connected with a telescopic rod 24, the telescopic rod 24 is fixedly connected to the bottom surface of the partition 13, the outer side of the squeezing rod 23 is sleeved with a crossed swinging plate 25, the bottom end of the swinging plate 25 is rotatably sleeved with a connecting rod 26, two ends of the connecting rod 26 are fixedly connected with baffle plates 27, the baffle plates 27 are fixed in the mounting groove 12, the positioning mechanism 2 is connected to two ends of the mounting frame 1, the swinging plate 25 is pushed to swing by the squeezing rod 23 in the downward pushing process of the pedal 21, so that the swinging plate 25 and the inner wall of a sewer outlet of the outer side of the mounting frame 1 and the outer side of the longitudinal grating 4 simultaneously generate a squeezing force, the longitudinal grating 4 is fixed in the interior of the mounting frame 1, the mounting frame 1 is conveniently used in a stable manner, and the device is prevented from falling off in the daily use process.
The transverse grid plate 3 comprises a plurality of transverse grid plates 31 with certain spacing, the bottoms of the transverse grid plates 31 are connected with positioning rods 32 and cleaning strips 33, the front ends of the transverse grid plates 31 are connected with rotating frames 34, the two ends of the transverse grid plates 31 are welded and fixed, the positioning rods 32 and the cleaning strips 33 connected with the bottoms of the transverse grid plates 31 are welded into a whole, the whole structure is connected to the longitudinal grid plates 4 through the rotating frames 34, the transverse grid plates 3 can turn around the rotating frames 34 on the longitudinal grid plates 4, the transverse grid plates 3 can be conveniently and rapidly opened and closed on the longitudinal grid plates 4, the transverse grid plates 3, the longitudinal grid plates 4 and the inside of a sewer mouth are conveniently cleaned, and the disassembly and reassembling efficiency of the device is improved.
The vertical grid piece 4 includes frame 41, one side of frame 41 is connected with the rotating sleeve 43 that cup joints with axis of rotation 15, the front end of frame 41 is connected with the dwang that cup joints with rotating turret 34 rotation, and the middle part of frame 41 is connected with the vertical grid 42 of a plurality of keeping certain interval, the upper surface protrusion of vertical grid 42 sets up the trapezoidal arch unanimous with horizontal grid 31 interval width, and the upper end of vertical grid 42 has offered the locating hole 44 that cup joints with locating lever 32 downwards, frame 41 is connected in the inside of installing frame 1, through the inside of positioning mechanism 2 centre gripping at installing frame 1, and the upper end rotation of vertical grid piece 4 is connected with horizontal grid piece 3, when opening of horizontal grid piece 3 also can't be maintenance and clearance, loosen positioning mechanism 2, vertical grid piece 4 overturns along rotating sleeve 43 and axis of rotation 15, with the complete exposure of lower mouth of a river, and avoid installing frame 1, horizontal grid piece 3 and vertical grid piece 4 thoroughly demolish, the convenience is to horizontal grid piece 3 and vertical grid piece 4 carries out quick reset locking, the use of the device of being convenient for and dismouting.
The swinging plate 25 is formed by two groups of waist-shaped plates which are crossed into an X shape, waist-shaped holes are formed in the middle of the swinging plate 25, the swinging plate 25 is crossed front and back, and is pushed to two sides simultaneously through the extrusion rods 23, so that the top end of the swinging plate 25 is utilized to extrude the inner wall of a water outlet and the outer side surface of the longitudinal grid plate 4 in the swinging process of the swinging plate 25, the extruded acting force is utilized to position, the looseness of the installation frame 1 and the longitudinal grid plate 4 is avoided, and the installation and the use of the installation frame 1 and the longitudinal grid plate 4 are facilitated.
The operation holes 14 are uniformly formed on two sides of the installation groove 12 and correspondingly connected with the two groups of crossed swinging plates 25, and the opening positions of the operation holes 14 are correspondingly formed with reference to the swinging paths of the swinging plates 25, so that the longitudinal grid plates 4 on two sides of the installation groove 12 and the inner wall of the water outlet are extruded through the operation holes 14 in the swinging and pressing process of the swinging plates 25.
The cleaning strips 33 are clamped on two side surfaces of the longitudinal grid strips 42 in pairs, brushes are arranged on the lower half section of the cleaning strips 33, the cleaning strips 33 are arranged to facilitate cleaning of the side walls of the side frames 41 in the process of opposite overturning operation of the transverse grid strips 3 and the longitudinal grid strips 4, and accumulation of scale and dust in the long-time use process of the longitudinal grid strips 4 is prevented.
The upper surface of footboard 21 is equipped with the protection ripple that the wave was fluctuated, and the upper surface is parallel and level with the upper surface of steelframe 11 behind the inside of footboard 21 push in mounting groove 12, and the setting of footboard 21 is convenient for directly trample hard in the top both sides of mounting frame 1, presses the in-process of pushing down footboard 21 to the inside of mounting groove 12 to swing board 25 extrudees the swing to increase the friction of the whole upper surface of device in the daily use of footboard 21, have skid-proof effect.
Specifically, this light-duty high strength stainless steel grid when using: when the pedal 21 is trampled to push the connecting plate 22 and the extrusion rod 23 downwards, the extrusion rod 23 extrudes the two crossed swinging plates 25, so that the swinging plates 25 outwards slide to simultaneously extrude and clamp the longitudinal grating pieces 4 and the inner wall of a sewer through the operation holes 14 on two sides, an extruded acting force is formed on the mounting frame 1 and the inner wall of the sewer, the stability of the mounting frame 1 in the sewer opening is improved, the longitudinal grating pieces 4 mounted in the mounting frame 1 are clamped and positioned inwards, the horizontal deviation of the mounting frame 1 in the sewer opening is avoided, the fixing effect of a steel grating is improved, the longitudinal grating pieces 4 are fixed, and the longitudinal grating pieces 4 are prevented from overturning; when articles fall or block the inner part of the sewer opening and the grating, in order to avoid dismantling the whole grating, double-layer dismantling in the front-back direction and the left-right direction can be carried out through the transverse grating pieces 3 and the longitudinal grating pieces 4, the pedal 21 is lifted upwards, the extrusion rod 23 drives the swinging plate 25 to swing inwards to retract, so that the steel grating can be smoothly dismantled, the articles and the garbage in the grating are conveniently taken out and cleaned, the self can be ensured to be reused, the resource loss is reduced, and the dismantling efficiency of the steel grating is improved; through overlapping horizontal grid piece 3 and vertical grid piece 4 alternately to take the grafting between locating lever 32 and the locating hole 44 to connect, avoid horizontal grid piece 3 and vertical grid piece 4 to extrude the collision in the use and produce the noise, and be connected with clearance strip 33 in the bottom of horizontal grid piece 31, clearance strip 33 downwardly extending carries out sliding connection with the side of vertical grid piece 4, makes horizontal grid piece 3 clear up vertical grid piece 4 inner wall in the in-process of turning up and down, avoids appearing piling up and attaching of dust on the vertical grid piece 4.
The above embodiments are only for illustrating the present application, and are not limiting of the present application. While the application has been described in detail with reference to the embodiments, those skilled in the art will appreciate that various combinations, modifications, and substitutions can be made thereto without departing from the spirit and scope of the application as defined in the appended claims.
Claims (6)
1. Light-duty high strength stainless steel grid, including installing frame (1), its characterized in that: the middle part of the installation frame (1) is erected and is connected with a left-right overturned longitudinal grating sheet (4), the upper part of the longitudinal grating sheet (4) is connected with a front-back overturned transverse grating sheet (3), two sides of the installation frame (1) are symmetrically provided with two positioning mechanisms (2), the positioning mechanisms (2) swing and deform to clamp and fix the longitudinal grating sheet (4) in the installation frame (1), the installation frame (1) is clamped and fixed in a sewer mouth, the installation frame (1) comprises a frame-shaped steel frame (11), two ends of the steel frame (11) are provided with installation grooves (12), the middle part of the installation grooves (12) is connected with a partition plate (13), an operation hole (14) is formed in the lower part of two side walls of the installation grooves (12) at equal intervals, one side of the steel frame (11) is connected with a rotating shaft (15), the positioning mechanisms (2) comprise pedals (21), the bottom of each pedal (21) is connected with a connecting plate (22), the connecting plate (22) penetrates through the partition plate (13) to be connected with the lower part of the installation groove (12) and is connected with a telescopic rod (24) at two ends of the telescopic rod (23), the outside of extrusion rod (23) has cup jointed crisscross swing board (25), the bottom rotation of swing board (25) has cup jointed connecting rod (26), the both ends fixedly connected with baffle (27) of connecting rod (26), baffle (27) are fixed in the inside of mounting groove (12), swing board (25) are two sets of waist template constitution of crossing into X form, just waist hole has been seted up at the middle part of swing board (25).
2. A lightweight high strength stainless steel grating according to claim 1, wherein: the horizontal grid plate (3) comprises a plurality of horizontal grid bars (31) with certain intervals, the bottoms of the horizontal grid bars (31) are connected with positioning rods (32) and cleaning bars (33), and the front ends of the horizontal grid bars (31) are connected with rotating frames (34).
3. A lightweight high strength stainless steel grating according to claim 2, characterized in that: the vertical grid piece (4) comprises a frame (41), one side of the frame (41) is connected with a rotating sleeve (43) sleeved with a rotating shaft (15), the front end of the frame (41) is connected with a rotating rod sleeved with the rotating frame (34) in a rotating mode, the middle of the frame (41) is connected with a plurality of vertical grid strips (42) with certain intervals, trapezoid protrusions with the interval width of the horizontal grid strips (31) are arranged on the upper surface of the vertical grid strips (42) in a protruding mode, and positioning holes (44) sleeved with the positioning rods (32) are formed in the lower ends of the vertical grid strips (42).
4. A lightweight high strength stainless steel grating according to claim 1, wherein: the operation holes (14) are uniformly formed on two sides of the installation groove (12) and are correspondingly connected with the two crossed swinging plates (25).
5. A lightweight high strength stainless steel grating according to claim 2, characterized in that: the cleaning strips (33) are clamped on two side surfaces of the longitudinal grid strips (42) in pairs, and brushes are arranged on the lower half section of the cleaning strips (33).
6. A lightweight high strength stainless steel grating according to claim 1, wherein: the upper surface of footboard (21) is equipped with the protection ripple that the wave was fluctuated, just the upper surface is parallel and level with the upper surface of steelframe (11) behind footboard (21) push in mounting groove (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211490252.8A CN115853100B (en) | 2022-11-25 | 2022-11-25 | Light high-strength stainless steel grating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211490252.8A CN115853100B (en) | 2022-11-25 | 2022-11-25 | Light high-strength stainless steel grating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115853100A CN115853100A (en) | 2023-03-28 |
| CN115853100B true CN115853100B (en) | 2023-10-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211490252.8A Active CN115853100B (en) | 2022-11-25 | 2022-11-25 | Light high-strength stainless steel grating |
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| Country | Link |
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| CN (1) | CN115853100B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006009286A (en) * | 2004-06-23 | 2006-01-12 | Daikure Co Ltd | Grating lid |
| KR20100115252A (en) * | 2009-04-17 | 2010-10-27 | 주식회사 서강 | Drain cover |
| CN202745074U (en) * | 2012-06-19 | 2013-02-20 | 李代一 | Double-layer revolving shaft type safety manhole cover |
| CN206722051U (en) * | 2017-05-05 | 2017-12-08 | 海盐县市政工程有限公司 | A kind of drainage ditch cover plate |
| KR101889974B1 (en) * | 2018-01-23 | 2018-08-22 | 주식회사 신화테크 | Rain water box |
| CN210887532U (en) * | 2019-07-23 | 2020-06-30 | 湖北耀源科技有限公司 | Rainwater well cover |
| CN213952301U (en) * | 2020-12-21 | 2021-08-13 | 杭州临安伟盛复合材料制品有限公司 | Electric power apron with protective structure |
| CN115341639A (en) * | 2022-09-02 | 2022-11-15 | 江苏蓝辉控股集团有限公司 | Overload shock-absorbing profile steel-concrete combined grid type rainwater grate |
-
2022
- 2022-11-25 CN CN202211490252.8A patent/CN115853100B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006009286A (en) * | 2004-06-23 | 2006-01-12 | Daikure Co Ltd | Grating lid |
| KR20100115252A (en) * | 2009-04-17 | 2010-10-27 | 주식회사 서강 | Drain cover |
| CN202745074U (en) * | 2012-06-19 | 2013-02-20 | 李代一 | Double-layer revolving shaft type safety manhole cover |
| CN206722051U (en) * | 2017-05-05 | 2017-12-08 | 海盐县市政工程有限公司 | A kind of drainage ditch cover plate |
| KR101889974B1 (en) * | 2018-01-23 | 2018-08-22 | 주식회사 신화테크 | Rain water box |
| CN210887532U (en) * | 2019-07-23 | 2020-06-30 | 湖北耀源科技有限公司 | Rainwater well cover |
| CN213952301U (en) * | 2020-12-21 | 2021-08-13 | 杭州临安伟盛复合材料制品有限公司 | Electric power apron with protective structure |
| CN115341639A (en) * | 2022-09-02 | 2022-11-15 | 江苏蓝辉控股集团有限公司 | Overload shock-absorbing profile steel-concrete combined grid type rainwater grate |
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| Publication number | Publication date |
|---|---|
| CN115853100A (en) | 2023-03-28 |
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