CN110541361B - Road and bridge construction rail guard - Google Patents
Road and bridge construction rail guard Download PDFInfo
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- CN110541361B CN110541361B CN201910834832.6A CN201910834832A CN110541361B CN 110541361 B CN110541361 B CN 110541361B CN 201910834832 A CN201910834832 A CN 201910834832A CN 110541361 B CN110541361 B CN 110541361B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
- E01D19/103—Parapets, railings ; Guard barriers or road-bridges
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- Engineering & Computer Science (AREA)
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Vibration Dampers (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a road and bridge construction protective guard, and belongs to the field of road facilities. This road and bridge construction rail guard includes: the pair of supporting bottom plates are connected through a protection plate, and one supporting bottom plate is positioned above the other supporting bottom plate; the supporting connecting plate is arranged at the rear end of the protection plate and can be fixed on the ground; the buffering protection mechanism is arranged at the front end of the protection plate. According to the road and bridge construction protective guard provided by the invention, the buffer protection mechanism is arranged, so that the road and bridge construction protective guard can effectively protect vehicles, the personal safety of personnel in the vehicles is ensured, and the service life of the road and bridge construction protective guard is prolonged.
Description
Technical Field
The invention relates to the technical field of road administration facilities, in particular to a road and bridge construction protective guard.
Background
With the rapid development of economy, vehicles have entered each household, and due to the rapid popularization of vehicles, the occurrence rate of traffic accidents is also increasing year by year, the traffic accidents occurring on roads are the highest, and in order to reduce the injury rate and death rate of personnel caused by accidents, guard railings need to be arranged on both sides of the roads.
The existing protective guard is generally provided with a spring to buffer impact force generated when a vehicle collides against the protective guard, and because the elastic deformation amount of the spring is fixed and the stability of the spring is poor, when the vehicle accidentally collides against the protective guard, the impact force is too large, so that the spring is irreversibly deformed, the vehicle is damaged, the personal safety of drivers and passengers in the vehicle is threatened, and the protective guard is seriously damaged.
Disclosure of Invention
The road and bridge construction protective guard provided by the invention can solve the problems of poor buffering effect and short service life of the protective guard in the prior art.
Road and bridge construction rail guard, wherein, include:
the pair of supporting bottom plates are connected through a protection plate, and one supporting bottom plate is positioned above the other supporting bottom plate;
the supporting connecting plate is arranged at the rear end of the protection plate and can be fixed on the ground;
the buffer protection mechanism is arranged at the front end of the protection plate.
Preferably, the buffer protection mechanism comprises a door-shaped frame and a movable plate, the door-shaped frame is located between a pair of supporting bottom plates, the movable plate is located between a pair of side plates of the door-shaped frame, the pair of side plates of the door-shaped frame are in sliding fit with the corresponding supporting bottom plates respectively, a top plate of the door-shaped frame is connected with the protection plate through a rubber column, two sides of the movable plate are in sliding fit with the corresponding side plates respectively, and the rear end of the movable plate is connected with the top plate through a pair of buffer assemblies.
Preferably, the buffer assembly includes a pair of mounting panel, one of mounting panel serves and is equipped with the installation axle, the installation axle is installed and is located the first mounting hole of roof front end in the second mounting hole of movable plate rear end, be equipped with a buffering post between a pair of mounting panel, the buffering post includes a pair of short column and round platform post that link to each other in proper order, the one end of short column links to each other with the mounting panel that corresponds, the other end of short column with the main aspects of round platform post link to each other, links to each other through a long post between the tip of a pair of round platform post.
Preferably, the buffer assembly further includes a first spring, the first spring is disposed between the pair of mounting plates, one end of the first spring is sleeved on one short column, and the other end of the first spring is sleeved on the other short column.
Preferably, a pair of first linkage assemblies is arranged between the top plate and the protection plate, the rubber column is located between the pair of first linkage assemblies, and the first linkage assemblies comprise:
one end of the first connecting rod is pivoted on the top plate, and the other end of the first connecting rod is pivoted on the inner part of a movable plate;
one end of the second connecting rod is hinged to the other end of the first connecting rod, and the other end of the second connecting rod is pivoted on the protection plate;
one end of the third connecting rod is pivoted on the moving plate;
one end of the fourth connecting rod is hinged to the other end of the third connecting rod, and the other end of the fourth connecting rod is pivoted on the top plate;
one end of the fifth connecting rod is hinged to the other end of the third connecting rod, and the other end of the fifth connecting rod is pivoted on the protection plate;
one end of the sixth connecting rod is pivoted on the moving plate, and the other end of the sixth connecting rod is pivoted on the top plate;
one end of the seventh connecting rod is hinged to one end of the sixth connecting rod, and the other end of the seventh connecting rod is pivoted on the protection plate;
and the second springs are arranged between the outer ends of the moving plates and the corresponding supporting bottom plates.
Preferably, the side plate is in sliding fit with the corresponding first sliding groove on the support bottom plate, and a third spring is arranged between the rear end of the side plate and the bottom wall of the first sliding groove.
Preferably, the movable plate comprises a bottom plate and a convex plate which are connected in sequence, the two sides of the bottom plate are respectively in sliding fit with the second sliding grooves in the corresponding side plates, the outer ends of the second sliding grooves are provided with baffle plates, and one sides corresponding to the bottom plate can be limited in the corresponding second sliding grooves by the baffle plates.
Preferably, a rubber pad is disposed at the front end of the protruding plate, the rear end of the protruding plate is connected to the front end of the bottom plate, a second linkage assembly is disposed between the rear end of the bottom plate and the top plate, the second linkage assembly is disposed between the pair of buffer assemblies, and the second linkage assembly includes:
the movable assemblies comprise an eighth connecting rod, a ninth connecting rod and a sliding block, one end of the eighth connecting rod is pivoted on the bottom plate, the other end of the eighth connecting rod is pivoted on the left end of the sliding block, one end of the ninth connecting rod is pivoted on the right end of the sliding block, the other end of the ninth connecting rod is pivoted on the top plate, and the sliding block is in sliding fit with a guide plate positioned in front of the top plate;
a fourth spring disposed between the pair of sliding blocks.
Preferably, a serpentine supporting member is embedded in the rubber column.
Preferably, the annular inlays in the buffer column and is equipped with a plurality of backup pad, the backup pad includes the arc, the arc is located in the long post, just the top of arc to the periphery of long post extends, be equipped with the extension board on the both ends of arc respectively, the non-link of extension board extends to the short column that corresponds in.
The road and bridge construction protective guard provided by the invention comprises the buffer protection mechanism, wherein the buffer protection mechanism comprises the first linkage component, the second linkage component and the buffer component, so that when a vehicle collides against the road and bridge construction protective guard, the kinetic energy of the vehicle can be converted into the kinetic energy of the first linkage component and the second linkage component and the elastic potential energy of the buffer component, the running speed of the vehicle can be reduced, the vehicle can be stopped quickly, the serious damage to the vehicle can be avoided, the personal safety of personnel in the vehicle can be guaranteed, and the service life of the road and bridge construction protective guard is prolonged.
Drawings
FIG. 1 is a side cross-sectional view of the present invention.
Fig. 2 is an enlarged view at K in fig. 1.
Fig. 3 is an enlarged view at G in fig. 2.
Fig. 4 is an enlarged view at H in fig. 2.
Fig. 5 is an enlarged view at J in fig. 2.
Fig. 6 is an enlarged view at I in fig. 2.
Description of reference numerals:
10-supporting bottom plate, 101-first sliding groove, 102-second shaft, 103-fourth shaft, 20-protection plate, 30-supporting connection plate, 301-inclined supporting rod, 302-connecting bottom plate, 40-door type frame, 401-side plate, 4011-second sliding groove, 4012-third shaft, 402-top plate, 4021-first mounting hole, 4022-rear plate, 50-moving plate, 501-second mounting hole, 502-bottom plate, 5021-front plate, 503-convex plate, 60-rubber column, 70-moving plate, 701-first shaft, 80-third spring, 90-baffle, 100-rubber pad, 110-guide plate, 120-snake-shaped support, 130-first fixing plate, 140-second fixing plate, 150-round pedestal, 160-solar panel, 170-storage battery, 180-warning lamp, 1-buffer component, 11-mounting plate, 111-mounting shaft, 12-buffer column, 121-short column, 122-circular table column, 123-long column, 13-first spring, 2-first linkage component, 21-first connecting rod, 22-second connecting rod, 23-third connecting rod, 24-fourth connecting rod, 26-sixth connecting rod, 27-seventh connecting rod, 28-second spring, 3-second linkage component, 31-movable component, 311-eighth connecting rod, 312-sliding block, 3121-groove, 313-ninth connecting rod, 32-fourth spring, 4-support plate, 41-arc plate and 42-extension plate.
Detailed Description
An embodiment of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the embodiment.
The first embodiment is as follows:
as shown in fig. 1, the road and bridge construction guard rail comprises a pair of supporting base plates 10, a supporting connection plate 30 and a buffer protection mechanism, wherein the pair of supporting base plates 10 are connected through a protection plate 20, one supporting base plate 10 is positioned above the other supporting base plate 10, the supporting connection plate 30 comprises an inclined supporting rod 301 and a connecting base plate 302 which are sequentially connected, the upper end of the inclined supporting rod 301 is connected with the protection plate 20, the lower end of the inclined supporting rod 301 is connected with the connecting base plate 302, the connecting base plate 302 can be fixed on the ground through screws, the buffer protection mechanism is arranged at the front end of the protection plate 20, when a vehicle inadvertently collides with the road and bridge construction guard rail, the buffer protection mechanism can buffer the force of the vehicle impacting the road and bridge construction guard rail, on one hand, the driving speed of the vehicle is reduced, the vehicle impact is avoided to be heavy, and the service life of the road and bridge construction protective guard is prolonged on the other hand.
As shown in fig. 2, the buffer protection mechanism includes a door-shaped frame 40 located between a pair of supporting bottom plates 10 and a moving plate 50 located between a pair of side plates 401 of the door-shaped frame 40, the pair of side plates 401 of the door-shaped frame 40 are respectively in sliding fit with the corresponding supporting bottom plates 10, a top plate 402 of the door-shaped frame 40 is connected with the protection plate 20 through a rubber column 60, two sides of the moving plate 50 are respectively in sliding fit with the corresponding side plates 401, and the rear end of the moving plate 50 is connected with the top plate 402 through a pair of buffer assemblies 1.
As shown in fig. 3, the damping assembly 1 includes a pair of mounting plates 11, one end of each mounting plate 11 is provided with a mounting shaft 111, the mounting shaft 111 is mounted in a first mounting hole 4021 located at the front end of the top plate 402/a second mounting hole 501 located at the rear end of the moving plate 50, a damping column 12 is arranged between the pair of mounting plates 11, the damping column 12 includes a pair of a short column 121 and a circular truncated cone column 122 connected in sequence, one end of the short column 121 is connected with the corresponding mounting plate 11, the other end of the short column 121 is connected with the large end of the circular truncated cone column 122, and the small ends of the pair of circular truncated cone columns 122 are connected through a long column 123.
In this embodiment, the cushion column 12 is made of rubber, and since the plurality of support plates 4 are embedded in the cushion column 12, the rigidity of the cushion column 12 is increased, and the cushion column 12 can be prevented from being excessively deformed.
Example two:
as shown in fig. 2, on the basis of the first embodiment, a serpentine support 120 is embedded in the rubber column 60, the serpentine support 120 extends along the axial direction of the rubber column 60, and the serpentine support 120 enhances the rigidity of the rubber column 60 and can prevent the rubber column 60 from being excessively deformed.
Example three:
as shown in fig. 3, on the basis of the second embodiment, a plurality of supporting plates 4 are annularly embedded in the cushion column 12 by using the central line of the cushion column 12 as an axis, each supporting plate 4 includes an arc-shaped plate 41, the arc-shaped plate 41 is located in the long column 123, the top of the arc-shaped plate 41 extends to the periphery of the long column 123, the two ends of the arc-shaped plate 41 are respectively provided with an extending plate 42, and the non-connecting end of each extending plate 42 extends into the corresponding short column 121.
Example four:
as shown in fig. 3, on the basis of the third embodiment, the damping assembly 1 further includes a first spring 13, the first spring 13 is disposed between the pair of mounting plates 11, one end of the first spring 13 is sleeved on one short column 121, and the other end of the first spring 13 is sleeved on the other short column 121.
Example five:
as shown in fig. 2 and 4, in a fourth embodiment, a pair of first linkage assemblies 2 is further disposed between the top plate 402 and the protection plate 20, the first linkage assemblies 2 are disposed between the first fixing plate 130 corresponding to the rear end of the top plate 402 and the second fixing plate 140 corresponding to the front end of the protection plate 20, the rubber column 60 is disposed between the pair of first linkage assemblies 2, each first linkage assembly 2 includes a first connecting rod 21, a second connecting rod 22, a third connecting rod 23, a fourth connecting rod 24, a fifth connecting rod 25, a sixth connecting rod 26, a seventh connecting rod 27 and a second spring 28, one end of the first connecting rod 21 is pivotally connected to the first fixing plate 130, the other end of the first moving plate 21 is pivotally connected to the left end of the inside of the first moving plate 70, one end of the second connecting rod 22 is pivotally connected to the other end of the first connecting rod 21, the other end of the second connecting rod 22 is pivotally connected to the left end of the second fixing plate 140, one end of the third connecting rod 23 is pivotally connected to the left end of the moving plate 70, one end of the fourth connecting rod 24 is pivotally connected to the other end of the third connecting rod 23, and the other end of the fourth connecting rod 24 is pivotally connected to the left end of the first fixing plate 130. One end of the fifth connecting rod 25 is hinged to the other end of the third connecting rod 23, the other end of the fifth connecting rod 25 is hinged to the left end of the second fixing plate 140, one end of the sixth link 26 is pivotally connected to the left end of the moving plate 70, the other end of the sixth link 26 is pivotally connected to the left end of the first fixing plate 130, one end of the seventh link 27 is hinged to one end of the sixth link 26, the other end of the seventh link 27 is hinged to the left end of the second fixing plate 140, the second spring 28 is disposed between the outer end of the moving plate 70 and the corresponding support base plate 10, and, in particular, one end of the second spring 28 is sleeved on the first shaft 701 at the outer end of the moving plate 70, the other end of the second spring 28 is fitted over a second shaft 102 located on the inner end of the support base plate 10, the second shaft 102 is provided on a circular base 150 located on the inner end of the support base plate 10.
Example six:
as shown in fig. 2 and 5, on the basis of the fifth embodiment, the side plate 401 is in sliding fit with the corresponding first sliding groove 101 on the supporting bottom plate 10, and a third spring 80 is arranged between the rear end of the side plate 401 and the bottom wall of the first sliding groove 101, specifically, one end of the third spring 80 is sleeved on a third shaft 4012 on the side plate 401, and the other end of the third spring 80 is sleeved on a fourth shaft 103 on the bottom wall of the first sliding groove 101.
Example seven:
as shown in fig. 2, on the basis of the sixth embodiment, the moving plate 50 includes a bottom plate 502 and a convex plate 503 which are connected in sequence, two sides of the bottom plate 502 are respectively in sliding fit with second sliding grooves 4011 on corresponding side plates 401, and a baffle 90 is arranged on an outer end of each second sliding groove 4011, and the baffle 90 can limit one side corresponding to the bottom plate 502 in the corresponding second sliding groove 4011.
Example eight:
as shown in fig. 2 and 6, in the seventh embodiment, the front end of the bottom plate 502 is connected to the rear end of the protruding plate 503, a second linkage assembly 3 is further disposed between the rear end of the bottom plate 502 and the top plate 402, the second linkage assembly 3 is located between a pair of buffer assemblies 1, the second linkage assembly 3 includes a pair of movable assemblies 31 and a fourth spring 32, the second linkage assembly 3 is disposed between a front plate 5021 located on the rear end of the bottom plate 502 and a rear plate 4022 located on the front end of the top plate 402, the movable assembly 31 includes an eighth link 311, a ninth link 313 and a sliding block 312, one end of the eighth link 311 is pivoted on the front plate 5021, the other end of the eighth link 311 is pivoted on the left end of the sliding block 312, one end of the ninth link 313 is pivoted on the right end of the sliding block 312, the other end of the ninth link 313 is pivoted on the rear plate 4022, the sliding blocks 312 are slidably engaged with the guide plate 110 located in front of the top plate 402, the fourth spring 32 is disposed between the pair of sliding blocks 312, and specifically, the end of the fourth spring 32 is connected to the bottom wall of the groove 3121 of the corresponding sliding block 312.
Example nine:
as shown in fig. 2 and 6, in the eighth embodiment, the rubber pad 100 is provided at the front end of the protruding plate 503, so that when a vehicle hits the road and bridge construction guard rail, the vehicle will first hit the rubber pad 100, and the rubber pad 100 can buffer the impact force generated by the vehicle, thereby slowing down the traveling speed of the vehicle.
Example ten:
as shown in fig. 1, on the basis of the ninth embodiment, a solar panel 160 and a storage battery 170 are disposed at the top end of the upper supporting base plate 10, a plurality of warning lamps 180 are disposed at the front end of the solar panel 160, the warning lamps 180 are disposed to remind people driving to be construction places where the lamps are turned on to remind them to walk carefully, and reinforcing ribs 130 are disposed between the supporting connection plates 30 and the corresponding supporting base plates 10, so that the structure of the road and bridge construction guard rail is reinforced, and the service life of the road and bridge construction guard rail is prolonged.
When a vehicle accidentally hits the road and bridge construction guard rail, the vehicle firstly hits the rubber pad 100, then the moving plate 50 is forced to move backwards, the first spring 13 and the buffer column 12 are compressed, the pair of sliding blocks 312 are moved towards each other under the action of the eighth link 311 and the ninth link 313, the fourth spring 32 is compressed, the gate frame 40 is forced to move backwards when the rear end of the bottom plate 502 contacts the bottom wall of the second sliding groove 4011, the rubber column 60 and the third spring 80 are compressed, the moving plate 70 is moved under the combined action of the first link 21, the second link 22, the third link 23, the fourth link 24, the sixth link 26 and the seventh link 27, the second spring 28 is compressed, and in the process, the kinetic energy of the vehicle is converted into the elastic potential energy of the buffer assembly 1, the third spring 80 and the rubber column 60 and the kinetic energy of the first linkage assembly 2 and the second linkage assembly 3, therefore, the running speed of the vehicle is reduced, the vehicle is prevented from being seriously lost, the personnel in the vehicle are effectively protected, and the service life of the road and bridge construction protective guard is prolonged.
The above disclosure is only for a few specific embodiments of the present invention, however, the present invention is not limited to the above embodiments, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.
Claims (1)
1. The utility model provides a road and bridge construction rail guard which characterized in that includes: the pair of supporting bottom plates (10) are connected through a protection plate (20), and one supporting bottom plate (10) is positioned above the other supporting bottom plate (10);
a support connection plate (30), wherein the support connection plate (30) is arranged at the rear end of the protection plate (20), and the support connection plate (30) can be fixed on the ground;
the buffer protection mechanism is arranged on the front end of the protection plate (20);
the buffer protection mechanism comprises a door-shaped frame (40) positioned between a pair of supporting bottom plates (10) and a moving plate (50) positioned between a pair of side plates (401) of the door-shaped frame (40), the pair of side plates (401) of the door-shaped frame (40) are respectively in sliding fit with the corresponding supporting bottom plates (10), a top plate (402) of the door-shaped frame (40) is connected with the protection plate (20) through a rubber column (60), two sides of the moving plate (50) are respectively in sliding fit with the corresponding side plates (401), and the rear end of the moving plate (50) is connected with the top plate (402) through a pair of buffer assemblies (1);
the buffer assembly (1) comprises a pair of mounting plates (11), one end of each mounting plate (11) is provided with a mounting shaft (111), the mounting shaft (111) is mounted in a first mounting hole (4021) located at the front end of the top plate (402)/a second mounting hole (501) located at the rear end of the moving plate (50), a buffer column (12) is arranged between the pair of mounting plates (11), the buffer column (12) comprises a pair of short columns (121) and circular truncated cone columns (122) which are sequentially connected, one end of each short column (121) is connected with the corresponding mounting plate (11), the other end of each short column (121) is connected with the large end of each circular truncated cone column (122), and the small ends of the pair of circular truncated cone columns (122) are connected through a long column (123);
the buffer assembly (1) further comprises a first spring (13), the first spring (13) is arranged between the pair of mounting plates (11), one end of the first spring (13) is sleeved on one short column (121), and the other end of the first spring (13) is sleeved on the other short column (121);
a pair of first linkage assemblies (2) is arranged between the top plate (402) and the protection plate (20), the rubber column (60) is located between the pair of first linkage assemblies (2), and each first linkage assembly (2) comprises:
a first connecting rod (21), one end of the first connecting rod (21) is pivoted on the top plate (402), and the other end of the first connecting rod (21) is pivoted on the inner part of a moving plate (70);
a second connecting rod (22), one end of the second connecting rod (22) is hinged on the other end of the first connecting rod (21), and the other end of the second connecting rod (22) is pivoted on the protection plate (20);
a third connecting rod (23), wherein one end of the third connecting rod (23) is pivoted on the moving plate (70);
a fourth connecting rod (24), one end of the fourth connecting rod (24) is hinged on the other end of the third connecting rod (23), and the other end of the fourth connecting rod (24) is pivoted on the top plate (402);
a fifth connecting rod (25), wherein one end of the fifth connecting rod (25) is hinged on the other end of the third connecting rod (23), and the other end of the fifth connecting rod (25) is pivoted on the protection plate (20);
a sixth connecting rod (26), one end of the sixth connecting rod (26) is pivoted on the moving plate (70), and the other end of the sixth connecting rod (26) is pivoted on the top plate (402);
a seventh connecting rod (27), one end of the seventh connecting rod (27) is hinged on one end of the sixth connecting rod (26), and the other end of the seventh connecting rod (27) is pivoted on the protection plate (20);
a second spring (28), the second spring (28) being disposed between an outer end of the moving plate (70) and the corresponding support bottom plate (10);
the side plates (401) are in sliding fit with the corresponding first sliding grooves (101) in the supporting bottom plate (10), and third springs (80) are arranged between the rear ends of the side plates (401) and the bottom walls of the first sliding grooves (101);
the movable plate (50) comprises a bottom plate (502) and a convex plate (503) which are sequentially connected, two sides of the bottom plate (502) are respectively in sliding fit with second sliding grooves (4011) in corresponding side plates (401), a baffle (90) is arranged at the outer end of each second sliding groove (4011), and one side, corresponding to the bottom plate (502), of each baffle (90) can be limited in the corresponding second sliding groove (4011);
be equipped with rubber pad (100) on the front end of flange (503), the rear end of flange (503) with the front end of bottom plate (502) links to each other, the rear end of bottom plate (502) with be equipped with second linkage subassembly (3) between roof (402), second linkage subassembly (3) are located between a pair of buffering subassembly (1), second linkage subassembly (3) include:
a pair of movable components (31), wherein each movable component (31) comprises an eighth connecting rod (311), a ninth connecting rod (313) and a sliding block (312), one end of each eighth connecting rod (311) is pivoted on the bottom plate (502), the other end of each eighth connecting rod (311) is pivoted on the left end of the corresponding sliding block (312), one end of each ninth connecting rod (313) is pivoted on the right end of the corresponding sliding block (312), the other end of each ninth connecting rod (313) is pivoted on the top plate (402), and the sliding blocks (312) are in sliding fit with guide plates (110) located in front of the top plates (402);
a fourth spring (32), the fourth spring (32) being disposed between a pair of sliding blocks (312);
a snake-shaped supporting piece (120) is embedded in the rubber column (60);
the utility model discloses a buffer column, including buffer column (12), annular inlay is equipped with a plurality of backup pad (4), backup pad (4) include arc (41), arc (41) are located in long post (123), just the top of arc (41) to the periphery of long post (123) extends, be equipped with extension board (42) on the both ends of arc (41) respectively, extend in the non-connection end of extension board (42) to short column (121) that corresponds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910834832.6A CN110541361B (en) | 2019-09-05 | 2019-09-05 | Road and bridge construction rail guard |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910834832.6A CN110541361B (en) | 2019-09-05 | 2019-09-05 | Road and bridge construction rail guard |
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| Publication Number | Publication Date |
|---|---|
| CN110541361A CN110541361A (en) | 2019-12-06 |
| CN110541361B true CN110541361B (en) | 2021-04-02 |
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| CN201910834832.6A Active CN110541361B (en) | 2019-09-05 | 2019-09-05 | Road and bridge construction rail guard |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111011999A (en) * | 2019-12-31 | 2020-04-17 | 晋江中天模具有限公司 | Rubber sole mold assembly |
| CN111282963A (en) * | 2020-03-03 | 2020-06-16 | 陆安培 | Animal doctor uses waste treatment equipment in station |
| CN113108014A (en) * | 2021-04-08 | 2021-07-13 | 浪潮商用机器有限公司 | Server cabinet and vibration damping buffer base thereof |
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| KR20080101812A (en) * | 2007-05-18 | 2008-11-21 | 남상경 | Shock absorbing type coupler of guardrail |
| CN207419332U (en) * | 2017-07-24 | 2018-05-29 | 蒲庆 | A kind of road and bridge construction protective fence of tape identification board |
| CN207079470U (en) * | 2017-07-27 | 2018-03-09 | 湖南城建职业技术学院 | A kind of anticollision formula bridge gag lever post |
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| Publication number | Publication date |
|---|---|
| CN110541361A (en) | 2019-12-06 |
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Effective date of registration: 20210315 Address after: No.102, Aucma street, Laishan District, Yantai City, Shandong Province 264600 Applicant after: Shandong Jiaheng Highway Engineering Co.,Ltd. Address before: 715104 group 3, Sucun Town, Dali County, Weinan City, Shaanxi Province Applicant before: An Zengpo |
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