CN216446653U - A rail guard for hydraulic engineering - Google Patents
A rail guard for hydraulic engineering Download PDFInfo
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- CN216446653U CN216446653U CN202122638198.4U CN202122638198U CN216446653U CN 216446653 U CN216446653 U CN 216446653U CN 202122638198 U CN202122638198 U CN 202122638198U CN 216446653 U CN216446653 U CN 216446653U
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- telescopic
- assembly
- locking
- dustproof
- curtain
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- 238000004804 winding Methods 0.000 claims description 13
- 238000005096 rolling process Methods 0.000 claims description 7
- 238000010276 construction Methods 0.000 abstract description 9
- 230000001681 protective effect Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 239000000428 dust Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 241000282414 Homo sapiens Species 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The application discloses a rail guard for hydraulic engineering belongs to hydraulic engineering's technical field, and its technical scheme main points include: the upright post is provided with a telescopic rod which can be movably connected; the telescopic assembly comprises a first telescopic curtain and a second telescopic curtain, the first telescopic curtain is arranged between the stand columns, and the second telescopic curtain is arranged between the telescopic rods; the driving device drives the telescopic rod to move and is arranged on the upright post; wherein, the telescopic link is provided with connecting portion, and connecting portion pass the stand, make the flexible curtain of second be connected with the telescopic link through connecting portion. The application provides a rail guard for hydraulic engineering, keeps apart the place that needs were under construction through the rail guard, security when improving the construction, and the rail guard is convenient for accomodate, is convenient for height-adjusting.
Description
Technical Field
The application belongs to the technical field of hydraulic engineering, especially, relate to a rail guard for hydraulic engineering.
Background
Hydraulic engineering is an engineering built for controlling and allocating surface water and underground water in the nature to achieve the purpose of removing harm and benefiting, also called water engineering, water is a valuable resource essential for human production and life, but the naturally existing state of the water does not completely meet the needs of human beings, and water flow can be controlled only by building the hydraulic engineering to prevent flood disasters and adjust and distribute water quantity to meet the needs of people for life and production on water resources.
The current chinese patent with publication number CN213838011U discloses a rail guard for during municipal hydraulic engineering construction, including two curb plates, the guide slot is connected at the both ends of curb plate, the apron is connected to the guide slot, two sets of fixed plates of curb plate outer wall installation, install flexible curtain between fixed plate and guide slot, install dustproof mechanism between the outer wall of curb plate, the outer wall installation splice plate of a curb plate, the outer wall of another curb plate is opened has the splice hole, through the bolt between splice plate and splice hole, the equal fixed mounting base in bottom of curb plate, the bottom installation gyro wheel of base.
Although the guard rail is convenient to fold and store, the height of the guard rail cannot be adjusted, and the guard rail is inconvenient to use in different construction sites.
SUMMERY OF THE UTILITY MODEL
The purpose of this application embodiment is to the above technical problem who exists, provides a rail guard for hydraulic engineering, keeps apart the place that needs the construction through the rail guard, improves the security during the construction, and the rail guard is convenient for accomodate, is convenient for adjust the height.
The embodiment of the application provides a rail guard for hydraulic engineering, includes: the upright post is provided with a telescopic rod which can be movably connected; the telescopic assembly comprises a first telescopic curtain and a second telescopic curtain, the first telescopic curtain is arranged between the stand columns, and the second telescopic curtain is arranged between the telescopic rods; the driving device drives the telescopic rod to move and is arranged on the upright post; wherein, the telescopic link is provided with connecting portion, and connecting portion pass the stand, make the flexible curtain of second be connected with the telescopic link through connecting portion.
Prop up the rail guard through the stand, flexible removal is convenient for adjust the height of rail guard on arranging the stand in the telescopic link, realize the demand of different job sites to the rail guard of co-altitude, be convenient for accomodate the rail guard through flexible subassembly, and the length of the extension control rail guard through flexible subassembly, be convenient for adapt to different construction demands, arrange the barrier property that realizes the rail guard between the stand in through flexible subassembly simultaneously, first flexible curtain is installed between the stand, the flexible curtain of second is installed between the telescopic link, be connected through connecting portion between the flexible curtain of second and the telescopic link, when guaranteeing the rail guard height-adjusting, flexible subassembly also can adjust simultaneously, effectively guarantee the barrier property of rail guard, connecting portion and telescopic link body coupling, be provided with the removal of movable groove connecting portion of being convenient for on the stand.
Further, the driving device includes: the driving motor is arranged in the upright post and has the same axis as the telescopic rod; and the screw rod is arranged on an output shaft of the driving motor and is in threaded connection with the telescopic rod.
The driving motor is fixedly connected to the bottom of the stand column through the bolt, the screw rod is driven to rotate through the driving motor, and therefore the telescopic rod in threaded connection with the screw rod can move up and down along the axis of the screw rod, the telescopic rod is limited to rotate along with the screw rod through the connecting portion, and stability of the telescopic rod during moving up and down is further improved.
Further, the telescopic assembly comprises: the long connecting rods are hinged end to end, and the middle parts of each pair of long connecting rods are hinged through a rotating shaft; and the locking assembly is arranged between the telescopic assembly and the upright post or the connecting part.
The utility model discloses a rail guard is fixed length, including rail guard, telescopic assembly, first flexible curtain, the flexible curtain of second, the first flexible curtain of first flexible curtain, the second is flexible to be provided with locking Assembly, and the first flexible curtain of second is provided with locking Assembly, and the first flexible curtain of first flexible curtain, the second is flexible to be provided with the first flexible curtain of first flexible curtain, and the second is flexible to be provided with the locking Assembly.
Further, the locking assembly includes: the locking seat is arranged on one side of the telescopic assembly and is arranged on the first rotating shaft on the side edge, and the locking seat is provided with a locking hole; the adjusting piece is arranged on the upright post and the connecting part and is provided with a plurality of adjusting holes; the top of the locking pin is provided with a handle part, and the locking pin is inserted into the adjusting hole and the locking hole simultaneously.
Locking seat fixed connection is in the first pivot of flexible subassembly one side, flexible subassembly extension makes locking hole on the locking seat correspond with an adjusting hole on the regulating part after accomplishing, peg graft in the adjusting hole and the locking hole that correspond simultaneously with the fitting pin, the regulating part that first flexible curtain corresponds is installed on the stand, the regulating part that the flexible curtain of second corresponds is installed on connecting portion, regulating part and stand, the installation department passes through screw connection or welded connection, the stalk portion on the fitting pin makes the fitting pin plug convenient, and prevent that the fitting pin from dropping from locking subassembly.
Further, the pillar includes: the dustproof component is movably connected to the outer wall surface of the upright post; the connecting piece is movably connected to the outer wall surface of the upright post; the fixing piece fixes the telescopic rod and the dustproof assembly or the connecting piece; wherein, dustproof subassembly and connecting piece are relative and place both sides of connecting portion in.
Increase the dustproof performance of rail guard through dustproof subassembly, dustproof subassembly installs on the stand, the stand is provided with the spout, make dustproof subassembly arrange the spout in and slide, the stand of rail guard both sides all is provided with a dustproof subassembly and connecting piece, make the dustproof subassembly on the stand of rail guard one side correspond with the connecting piece on the stand of rail guard opposite side, the mounting of rail guard one side is connected dustproof subassembly and telescopic link, the mounting of rail guard opposite side is connected connecting piece and telescopic link, make the dustproof subassembly or the connecting piece of being connected with the telescopic link reciprocate along with the telescopic link together, improve dustproof height and the dustproof area of dustproof subassembly, further improve dustproof effect.
Further, the dust-proof assembly includes: a housing; the winding shaft is arranged in the shell; the dustproof net is wound on the winding shaft, one end of the dustproof net is connected with the winding shaft, the other end of the dustproof net is provided with a connecting fitting piece arranged outside the shell, and the connecting fitting piece is matched with the connecting piece.
The casing is used for installing the rolling axle, and the rolling axle rotates and makes the dust screen rolling, and pulling dust screen when dustproof subassembly uses makes connection fitting piece and connecting piece cooperation, opens the dust screen, realizes the dustproof effect through the dust screen, and the rolling axle has the coiling effort to the dust screen, and when connecting fitting piece and connecting piece disconnection, the dust screen is automatic to be convoluteed on the rolling axle.
The beneficial effects of the embodiment of the application are that:
1. the protective guard is convenient to store through the telescopic rod in a telescopic component contraction mode, the height of the protective guard is adjusted through the telescopic rod, the width of the protective guard is adjusted through the telescopic component, the driving motor drives the screw rod to rotate, the telescopic rod is convenient to move up and down, the width of the protective guard is adjusted through angle change between the long connecting rods, the second telescopic curtain moves along with the telescopic rod through the connecting portion, and stable protection of the protective guard is guaranteed.
2. After the telescopic assembly is extended, the locking hole in the locking seat corresponds to one adjusting hole in the adjusting piece, the locking pin is simultaneously inserted into the corresponding adjusting hole and the locking hole, the adjusting piece corresponding to the first telescopic curtain is installed on the stand column, and the adjusting piece corresponding to the second telescopic curtain is installed on the connecting portion.
3. The dustproof assembly on the stand column on one side of the protective guard corresponds to the connecting piece on the stand column on the other side of the protective guard, the dustproof assembly is connected with the telescopic rod through the fixing piece on one side of the protective guard, the connecting piece is connected with the telescopic rod through the fixing piece on the other side of the protective guard, the dustproof assembly or the connecting piece connected with the telescopic rod can move up and down along with the telescopic rod, and the dustproof effect is achieved through the fact that the dustproof net stretches out.
Drawings
Fig. 1 is a schematic structural view of a guard rail according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a driving device according to an embodiment of the present application;
FIG. 3 is a schematic structural view of a locking assembly according to an embodiment of the present application;
FIG. 4 is a schematic structural diagram at A of FIG. 1 according to an embodiment of the present disclosure;
FIG. 5 is a schematic structural diagram of a pillar according to an embodiment of the present application;
FIG. 6 is a schematic structural diagram of a dust-proof assembly according to an embodiment of the present disclosure;
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present disclosure.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The portable server provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings by specific embodiments and application scenarios thereof.
Example 1:
as shown in fig. 1 and fig. 2, an embodiment of the present application provides a guard rail for hydraulic engineering, including: the upright post 100, the upright post 100 is provided with a telescopic rod 110 which can be movably connected; the telescopic assembly 200 comprises a first telescopic curtain 210 and a second telescopic curtain 220, wherein the first telescopic curtain 210 is arranged between the upright posts 100, and the second telescopic curtain 220 is arranged between the telescopic rods 110; the driving device 300, the driving device 300 drives the telescopic rod 110 to move, the driving device 300 is installed on the upright 100; the telescopic rod 110 is provided with a connecting portion 111, the connecting portion 111 penetrates through the upright post 100, and the second retractable curtain 220 is connected with the telescopic rod 110 through the connecting portion 111.
The guard rail is supported by the upright posts 100, the telescopic rods 110 are arranged on the upright posts 100 to move in a telescopic way, so that the height of the guard rail can be conveniently adjusted, the requirements of different construction sites on guard rails with different heights can be met, the extension assembly 200 is convenient for accommodating the guard rail, and the extension of the extension assembly 200 is used for controlling the length of the guard rail, so that the extension assembly can be conveniently adapted to different construction requirements, meanwhile, the protection performance of the guard rail is realized by arranging the telescopic assemblies 200 between the upright posts 100, the first telescopic curtains 210 are arranged between the upright posts 100, the second telescopic curtains 220 are arranged between the telescopic rods 110, the second telescopic curtains 220 are connected with the telescopic rods 110 through the connecting parts 111, when the height of the guard rail is ensured to be adjusted, the telescopic assembly 200 can also be adjusted simultaneously, the protection performance of the guard rail is effectively guaranteed, the connecting part 111 is integrally connected with the telescopic rod 110, and the upright post 100 is provided with a movable groove for facilitating the movement of the connecting part 111.
Example 2:
as shown in fig. 2, the embodiment of the present application provides a guard rail for hydraulic engineering, which in addition to the above technical features, further includes a driving device 300 including: the driving motor 310 is installed in the upright post 100, and the axis of the driving motor 310 is the same as that of the telescopic rod 110; the screw 320, the screw 320 is installed on the output shaft of the driving motor 310, and the screw 320 is in threaded connection with the telescopic rod 110.
The driving motor 310 is fixedly connected to the bottom of the upright 100 through a bolt, and the driving motor 310 drives the screw 320 to rotate, so that the telescopic rod 110 in threaded connection with the screw 320 moves up and down along the axis of the screw 320, the telescopic rod 110 is limited to rotate along with the screw 320 through the connecting part 111, and the stability of the telescopic rod 110 in moving up and down is further improved.
Example 3:
as shown in fig. 1, 3 and 4, an embodiment of the present application provides a guard rail for hydraulic engineering, which in addition to the above technical features, further includes a telescopic assembly 200 including: the long connecting rods 201 are hinged end to end among a plurality of pairs of long connecting rods 201, and the middle parts of each pair of long connecting rods 201 are hinged through a rotating shaft 202; and a locking assembly 400, wherein the locking assembly 400 is arranged between the telescopic assembly 200 and the upright 100 or the connecting part 111.
Further, the locking assembly 400 includes: the locking seat 410 is arranged on one side of the telescopic assembly 200, and is installed on the first rotating shaft 202 on the side, and the locking seat 410 is provided with a locking hole 411; the adjusting piece 420 is arranged on the upright post 100 and the connecting part 111, and the adjusting piece 420 is provided with a plurality of adjusting holes 421; the locking pin 430 is provided with a handle portion 431 at the top of the locking pin 430, and the locking pin 430 is inserted into the adjusting hole 421 and the locking hole 411 at the same time.
The multiple pairs of long connecting rods 201 are hinged end to end, the middle of each pair of long connecting rods 201 is hinged through the rotating shaft 202, the guard rail is quickly opened and stored through angle change between the long connecting rods 201, the telescopic assembly 200 is locked through the locking assembly 400 after being opened, the guard rail keeps a fixed length, the stability of the guard rail in use is further improved, and the first telescopic curtain 210 and the second telescopic curtain 220 are provided with the locking assembly 400.
The locking seat 410 is fixedly connected to the first rotating shaft 202 on one side of the telescopic assembly 200, after the telescopic assembly 200 is extended, the locking hole 411 on the locking seat 410 corresponds to one adjusting hole 421 on the adjusting piece 420, the locking pin 430 is simultaneously inserted into the corresponding adjusting hole 421 and the locking hole 411, the adjusting piece 420 corresponding to the first telescopic curtain 210 is installed on the upright post 100, the adjusting piece 420 corresponding to the second telescopic curtain 220 is installed on the connecting portion 111, the adjusting piece 420 and the upright post 100 are connected by screws or welding, the locking pin 430 is conveniently inserted and pulled by the handle 431 on the locking pin 430, and the locking pin 430 is prevented from falling off from the locking assembly 400.
Example 4:
as shown in fig. 1 and 5, an embodiment of the present application provides a guard rail for hydraulic engineering, which in addition to including the technical features described above, further includes a column 100 including: the dustproof component 120 is movably connected to the outer wall surface of the upright post 100; the connecting piece 130, the connecting piece 130 is movably connected to the outer wall surface of the upright 100; the fixing member 140, the fixing member 140 fixes the telescopic rod 110 and the dust-proof assembly 120 or the connecting member 130; the dust-proof assembly 120 is opposite to the connecting member 130 and is disposed on two sides of the connecting portion 111.
The dustproof performance of the guard rail is improved through the dustproof assembly 120, the dustproof assembly 120 is installed on the upright post 100, the upright post 100 is provided with a sliding groove, the dustproof assembly 120 is arranged in the sliding groove to slide, the upright posts 100 on two sides of the guard rail are respectively provided with the dustproof assembly 120 and the connecting piece 130, the dustproof assembly 120 on the upright post 100 on one side of the guard rail corresponds to the connecting piece 130 on the upright post 100 on the other side of the guard rail, the dustproof assembly 120 is connected with the telescopic rod 110 through the fixing piece 140 on one side of the guard rail, the connecting piece 130 is connected with the telescopic rod 110 through the fixing piece 140 on the other side of the guard rail, the dustproof assembly 120 or the connecting piece 130 connected with the telescopic rod 110 moves up and down along with the telescopic rod 110, the dustproof height and the dustproof area of the dustproof assembly 120 are improved, and the dustproof effect is further improved.
Example 5:
as shown in fig. 6, the embodiment of the present application provides a guard rail for hydraulic engineering, which in addition to the above technical features, further includes a dust-proof assembly 120 including: a housing 121; a take-up shaft 122, the take-up shaft 122 being disposed in the housing 121; the dustproof net 123 is wound on the winding shaft 122, one end of the dustproof net 123 is connected with the winding shaft 122, the other end of the dustproof net 123 is provided with a connecting fitting 124 arranged outside the shell 121, and the connecting fitting 124 is matched with the connecting piece 130.
The shell 121 is used for mounting the winding shaft 122, the winding shaft 122 rotates to enable the dustproof net 123 to be wound, the dustproof assembly 120 pulls the dustproof net 123 when in use, the connection fitting piece 124 is matched with the connecting piece 130, the dustproof net 123 is opened, the dustproof effect is achieved through the dustproof net 123, the winding shaft 122 has a winding acting force on the dustproof net 123, and when the connection fitting piece 124 is disconnected from the connecting piece 130, the dustproof net 123 is automatically wound on the winding shaft 122.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element identified by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. A rail guard for hydraulic engineering, characterized by, includes:
the upright post (100), the upright post (100) is provided with a telescopic rod (110) which is movably connected;
the telescopic assembly (200) comprises a first telescopic curtain (210) and a second telescopic curtain (220), the first telescopic curtain (210) is arranged between the upright posts (100), and the second telescopic curtain (220) is arranged between the telescopic rods (110);
the driving device (300), the driving device (300) drives the telescopic rod (110) to move, and the driving device (300) is installed on the upright post (100);
the telescopic rod (110) is provided with a connecting part (111), and the second telescopic curtain (220) is connected with the telescopic rod (110) through the connecting part (111).
2. Guard rail for hydraulic engineering according to claim 1, characterized in that said driving means (300) comprise:
the driving motor (310) is installed in the upright post (100) and has the same axis as the telescopic rod (110);
the screw rod (320) is installed on an output shaft of the driving motor (310), and the screw rod (320) is in threaded connection with the telescopic rod (110).
3. Guard rail for hydraulic engineering according to claim 2, characterized in that the telescopic assembly (200) comprises:
the long connecting rods (201) are hinged end to end, and the middle parts of each pair of long connecting rods (201) are hinged through a rotating shaft (202);
a locking assembly (400), wherein the locking assembly (400) is arranged between the telescopic assembly (200) and the upright post (100) or the connecting part (111).
4. Guard rail for hydraulic engineering according to claim 3, characterized in that said locking assembly (400) comprises:
the locking seat (410) is arranged on one side of the telescopic assembly (200) and is arranged on the first rotating shaft (202) on the side edge, and the locking seat (410) is provided with a locking hole (411);
the adjusting piece (420) is arranged on the upright post (100) and the connecting part (111), and the adjusting piece (420) is provided with a plurality of adjusting holes (421);
the locking device comprises a locking pin (430), a handle part (431) is arranged at the top of the locking pin (430), and the locking pin (430) is simultaneously inserted into the adjusting hole (421) and the locking hole (411).
5. Guard rail for hydraulic engineering according to claim 4, characterized in that said upright (100) comprises:
the dustproof assembly (120), the dustproof assembly (120) is movably connected to the outer wall surface of the upright post (100);
the connecting piece (130), the said connecting piece (130) is connected to the outer wall of the pillar stand (100) movably;
the fixing piece (140), the telescopic link (110) is fixed with the dustproof component (120) or the connecting piece (130) by the fixing piece (140);
the dustproof assembly (120) is opposite to the connecting piece (130) and is arranged on two sides of the connecting part (111).
6. Guard rail for hydraulic engineering according to claim 5, characterized in that said dust-proof assembly (120) comprises:
a housing (121);
a winding shaft (122), wherein the winding shaft (122) is arranged in the shell (121);
the dustproof net (123), dustproof net (123) are convoluteed on rolling axle (122), the one end and the rolling axle (122) of dustproof net (123) are connected, and the other end is equipped with places connection fitting piece (124) outside casing (121), connection fitting piece (124) and connecting piece (130) cooperation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122638198.4U CN216446653U (en) | 2021-10-29 | 2021-10-29 | A rail guard for hydraulic engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122638198.4U CN216446653U (en) | 2021-10-29 | 2021-10-29 | A rail guard for hydraulic engineering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216446653U true CN216446653U (en) | 2022-05-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122638198.4U Expired - Fee Related CN216446653U (en) | 2021-10-29 | 2021-10-29 | A rail guard for hydraulic engineering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216446653U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117287088A (en) * | 2023-11-24 | 2023-12-26 | 德州迈隆公路工程有限公司 | Protection device for construction |
-
2021
- 2021-10-29 CN CN202122638198.4U patent/CN216446653U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117287088A (en) * | 2023-11-24 | 2023-12-26 | 德州迈隆公路工程有限公司 | Protection device for construction |
| CN117287088B (en) * | 2023-11-24 | 2024-02-06 | 德州迈隆公路工程有限公司 | Protection device for construction |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220506 |