CN112854064B - Anti-sticking head safety road guardrail - Google Patents
Anti-sticking head safety road guardrail Download PDFInfo
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- CN112854064B CN112854064B CN201911178683.9A CN201911178683A CN112854064B CN 112854064 B CN112854064 B CN 112854064B CN 201911178683 A CN201911178683 A CN 201911178683A CN 112854064 B CN112854064 B CN 112854064B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/02—Continuous barriers extending along roads or between traffic lanes
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Abstract
An anti-chuck safety road guardrail comprises two upright posts and a sleeve piece, wherein an upper cross rod and a lower cross rod are connected between the two upright posts, a vertical rod is connected between the upper cross rod and the lower cross rod, an anti-climbing rod is arranged above the upper cross rod, the vertical rod penetrates through the upper cross rod and is rotatably connected with the anti-climbing rod through a first pin shaft, the sleeve piece is sleeved at the joint of the vertical rod and the anti-climbing rod, the sleeve piece comprises an upper sleeve, a lower sleeve, a reset spring and two connecting rods which are connected with the upper sleeve and the lower sleeve, the two connecting rods are symmetrically arranged at the two axial ends of the first pin shaft, the upper ends of the two connecting rods are fixedly connected with the upper sleeve, the lower ends of the two connecting rods are rotatably connected with the lower sleeve through a second pin shaft, the reset spring has a movement trend which enables the upper sleeve to be sleeved at the joint of the vertical rod and the anti-climbing rod, the sleeve piece can axially move along the vertical rod and the anti-climbing rod, and when the second pin shaft is coaxial with the first pin shaft, the anti-climbing rod, the upper sleeve and the two connecting rods can rotate around the joint of the vertical rod and the anti-climbing rod.
Description
Technical Field
The invention belongs to the technical field of municipal equipment, and particularly relates to a head-clamping-prevention safety road guardrail.
Background
The existing road guardrail is generally provided with a plurality of climbing prevention rods arranged at intervals at the upper part so as to avoid climbing, but pedestrians who are tired often lean against the guardrail for rest, the head and neck are clamped between the climbing prevention rods carelessly, and once transverse force is applied, the head and neck are clamped more and more tightly to cause suffocation, so that improvement is needed.
The invention patent with the application number of '201611181046.3' discloses an anti-sticking safety road guardrail, which comprises two upright posts arranged vertically at intervals, wherein an upper cross rod and a lower cross rod which are parallel to each other and transversely arranged are connected between the two upright posts; the top end of the anti-climbing rod is pointed.
Anti-sticking head safety road guardrail in the above-mentioned patent technique is in the use, in case personnel lean on the guardrail, when the head card was between adjacent anti-climbing pole, can horizontal application of force this moment to make anti-climbing pole rotatory around the round pin axle, can take the head out, lead to the head to be blocked when avoiding horizontal application of force and die. However, under the normal condition, the anti-climbing rod can rotate around the pin shaft under the action of external force, if when the transverse wind force is large, the anti-climbing rod swings left and right, and the anti-climbing rod and the vertical rod cannot be located on the same straight line, so that the anti-climbing rod is unstable.
Therefore, for the technicians in the field, how to provide the anti-sticking safety road guardrail with the new structure can stabilize the anti-climbing rods under the normal condition and deal with the condition that the heads of the workers are stuck between the adjacent anti-climbing rods, and the anti-sticking safety road guardrail has practical significance.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the anti-sticking safety road guardrail with the new structure, which can stabilize anti-climbing rods under normal conditions and can deal with the condition that heads of personnel are stuck between adjacent anti-climbing rods.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
the utility model provides an anti-sticking head safety road guardrail, includes the stand that two vertical intervals set up, is connected with the last horizontal pole and the sheer pole that are parallel to each other and transversely set up between two stands, goes up the horizontal pole and is located the sheer pole top, goes up and is connected with a plurality of montants that are parallel to each other and vertically set up between horizontal pole and the sheer pole, it is equipped with a plurality of poles of preventing climbing to go up the horizontal pole top, prevent climbing the pole with the montant one-to-one sets up its characterized in that: the anti-climbing device comprises an upper cross rod, a vertical rod, a sleeve piece and a second sleeve piece, wherein the vertical rod penetrates through the upper cross rod and is rotatably connected with the anti-climbing rod through a first pin shaft, the extending direction of the first pin shaft is perpendicular to the upper cross rod, the sleeve piece is sleeved at the joint of the vertical rod and the anti-climbing rod, the sleeve piece comprises an upper sleeve, a lower sleeve, a reset spring and two connecting rods, the two connecting rods are connected with the upper sleeve and the lower sleeve, the two connecting rods are symmetrically arranged at two axial ends of the first pin shaft, the upper ends of the two connecting rods are fixedly connected with the upper sleeve, the lower ends of the two connecting rods are rotatably connected with the lower sleeve through a second pin shaft, the extending direction of the second pin shaft is parallel to the extending direction of the first pin shaft, the reset spring is connected with the sleeve piece, the reset spring has a movement trend that the upper sleeve is sleeved at the joint of the vertical rod and the anti-climbing rod, and the sleeve piece can axially move along the vertical rod and the anti-climbing rod, and when the anti-climbing rod moves to the second pin shaft and the first pin shaft to be coaxial, the anti-climbing rod, the upper sleeve and the two connecting rods can rotate around the joint of the vertical rod and the anti-climbing rod.
As an improvement of the anti-chuck safety road guardrail on one hand, the top end of the vertical rod and the bottom end of the anti-climbing rod are respectively provided with a first hinge part and a second hinge part, and the first hinge part and the second hinge part are hinged through a first pin shaft.
As an improvement of the anti-chuck safety road guardrail on one hand, a bidirectional torsion spring is arranged between the first hinge part and the second hinge part, and when the anti-climbing rod is connected with the upper sleeve and the two connecting rods surround the joint of the vertical rod and the anti-climbing rod is rotated, the bidirectional torsion spring can twist to enable the anti-climbing rod to be connected with the upper sleeve and the two connecting rods to reset.
As the improvement of the anti-chuck safety road guardrail on the one hand, a bidirectional torsion spring is arranged between the connecting rod and the lower sleeve, and when the anti-climbing rod is connected with the upper sleeve and two connecting rods are surrounded at the joint of the vertical rod and the anti-climbing rod, the bidirectional torsion spring can twist to enable the anti-climbing rod to be connected with the upper sleeve and the two connecting rods to reset.
As an improvement of the anti-blocking head safety road guardrail on one hand, the reset spring is positioned below the lower sleeve, one end of the reset spring is connected with the lower sleeve, and the other end of the reset spring is connected with the vertical rod.
As an improvement of the anti-blocking head safety road guardrail on one hand, the vertical rod is provided with a limiting boss along the circumferential direction, and the other end of the reset spring is abutted to the limiting boss.
As an improvement of the anti-blocking head safety road guardrail on one hand, the top end of the anti-climbing rod is pointed.
As an improvement of the anti-blocking head safety road guardrail on one hand, one end or two ends of the first pin shaft and/or the second pin shaft are/is also provided with a split pin for preventing the pin shafts from sliding off.
As an improvement of the anti-blocking head safety road guardrail on one hand, the radial sizes of the first pin shaft and the second pin shaft are consistent.
As an improvement of the anti-chuck safety road guardrail on one aspect, one of the upper sleeve and the anti-climbing rod is provided with a sliding part, and the other one is provided with a sliding groove in sliding fit with the sliding part.
Compared with the prior art, the invention has the advantages that: the anti-sticking head safety road guardrail of the invention is characterized in that the sleeve is sleeved at the joint of the vertical rod and the anti-climbing rod, and the sleeve can slide on the joint and the vertical rod and the anti-climbing rod according to requirements, under the normal condition and under the action of the reset spring, the upper sleeve is sleeved at the joint of the vertical rod and the anti-climbing rod to limit the relative rotation between the vertical rod and the anti-climbing rod and stabilize the anti-climbing rod, so that the vertical rod and the anti-climbing rod are positioned on the same straight line, the anti-climbing rod can play a good anti-climbing function, once a person leans on the guardrail, the head is clamped between the adjacent anti-climbing rods, the sleeve can slide downwards, and when the person moves to the second pin shaft and the first pin shaft to be coaxial, the anti-climbing rod together with the upper sleeve and the two connecting rods can rotate around the joint of the vertical rod and the anti-climbing rod, so that the anti-climbing rod can rotate around the joint of the vertical rod and the anti-climbing rod in the process of transversely pulling out the head, the head can be taken out, the head is blocked when the transverse force is avoided, and therefore the guardrail can not influence normal use and has the function of preventing the clamping head. Therefore, the anti-sticking safety road guardrail can stabilize the anti-climbing rods under the normal condition and can also cope with the condition that the heads of personnel are stuck between the adjacent anti-climbing rods.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a chuck-preventing safety road barrier according to a first embodiment of the present invention.
Fig. 2 is a schematic structural view of the anti-chuck safety road guardrail in the second state according to the embodiment of the invention.
Fig. 3 is a schematic structural view of the anti-chuck safety road guardrail in the third state according to the embodiment of the invention.
Fig. 4 is a schematic view of the combination of the anti-climbing rod and the vertical rod.
Illustration of the drawings:
1. a column; 2. an upper cross bar; 3. a lower cross bar; 4. a vertical rod; 5. the climbing prevention rod; 6. a first pin shaft; 7. an upper sleeve; 8. a lower sleeve; 9. a return spring; 10. a connecting rod; 11. a second pin shaft; 12. and a limiting boss.
Detailed Description
In order to facilitate an understanding of the invention, the invention will be described more fully and in detail below with reference to the accompanying drawings and preferred embodiments, but the scope of the invention is not limited to the specific embodiments below.
It should be particularly noted that when an element is referred to as being "fixed to, connected to or communicated with" another element, it can be directly fixed to, connected to or communicated with the other element or indirectly fixed to, connected to or communicated with the other element through other intermediate connecting components.
Unless otherwise defined, all terms of art used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present invention.
Examples
As shown in fig. 1, 2, 3 and 4, the invention provides an anti-sticking safety road guardrail, which comprises two upright posts 1 arranged at intervals vertically, wherein an upper cross rod 2 and a lower cross rod 3 which are parallel to each other and transversely arranged are connected between the two upright posts 1, the upper cross rod 2 is positioned above the lower cross rod 3, a plurality of vertical rods 4 which are parallel to each other and longitudinally arranged are connected between the upper cross rod 2 and the lower cross rod 3, a plurality of anti-climbing rods 5 are arranged above the upper cross rod 2, and the anti-climbing rods 5 and the vertical rods 4 are arranged in a one-to-one correspondence manner.
The anti-climbing device is different from the prior art in that the anti-climbing device further comprises a kit, the vertical rod 4 penetrates through the upper cross rod 2 and is rotatably connected with the anti-climbing rod 5 through a first pin shaft 6, the extending direction of the first pin shaft 6 is perpendicular to the upper cross rod 2, the kit is sleeved at the connecting position of the vertical rod 4 and the anti-climbing rod 5, the kit comprises an upper sleeve 7, a lower sleeve 8, a reset spring 9 and two connecting rods 10 which are connected with the upper sleeve 7 and the lower sleeve 8, the two connecting rods 10 are symmetrically arranged at two axial ends of the first pin shaft 6, the upper ends of the two connecting rods 10 are fixedly connected with the upper sleeve 7, the lower ends of the two connecting rods 10 are rotatably connected with the lower sleeve 8 through a second pin shaft 11, the extending direction of the second pin shaft 11 is parallel to the extending direction of the first pin shaft 6, the reset spring 9 is connected with the kit, and the reset spring 9 is provided with a structure that the upper sleeve 7 is sleeved at the connecting position of the vertical rod 4 and the anti-climbing rod 5 And the external member can axially move along the vertical rod 4 and the climbing-proof rod 5, and when the external member moves to the second pin shaft 11 and the first pin shaft 6 which are coaxial, the climbing-proof rod 5, the upper sleeve 7 and the two connecting rods 10 can rotate around the joint of the vertical rod 4 and the climbing-proof rod 5.
The anti-sticking head safety road guardrail of the invention is characterized in that a sleeve is sleeved at the joint of the vertical rod 4 and the anti-climbing rod 5, and the sleeve can also slide on the joint and the vertical rod 4 and the anti-climbing rod 5 according to requirements, under the action of a return spring 9 under the normal condition, as shown in figure 1, an upper sleeve 7 is sleeved at the joint of the vertical rod 4 and the anti-climbing rod 5 to limit the relative rotation between the vertical rod 4 and the anti-climbing rod 5 and stabilize the anti-climbing rod 5, so that the vertical rod 4 and the anti-climbing rod 5 are positioned on the same straight line, the anti-climbing rod 5 can play a good anti-climbing role, once a person leans against the guardrail, when the head is clamped between the adjacent anti-climbing rods 5, as shown in figures 2 and 3, the sleeve can slide down, and when the second pin shaft 11 moves to be coaxial with the first pin shaft 6, the anti-climbing rod 5, together with the upper sleeve 7 and two connecting rods 10 can rotate around the joint of the vertical rod 4 and the anti-climbing rod 5, so at horizontal pull-out head in-process, anti-creep rod 5 can center on montant 4 and anti-creep rod 5's junction is rotatory, can take the head out, leads to the head to be blocked when avoiding horizontal application of force and dies, consequently this guardrail can not influence normal use, and has the effect of preventing the dop. Therefore, the anti-sticking safety road guardrail can stabilize the anti-climbing rods 5 under normal conditions and can also cope with the situation that the heads of personnel are stuck between the adjacent anti-climbing rods 5.
Specifically, the top end of the vertical rod 4 and the bottom end of the anti-climbing rod 5 are respectively provided with a first hinge part (not shown in the figure) and a second hinge part (not shown in the figure), and the first hinge part and the second hinge part are hinged through a first pin shaft 6. Preferably, a bidirectional torsion spring (not shown in the figure) is arranged between the first hinge part and the second hinge part, and after the anti-climbing rod 5, together with the upper sleeve 7 and the two connecting rods 10, rotate around the joint of the vertical rod 4 and the anti-climbing rod 5, the bidirectional torsion spring can twist to reset the anti-climbing rod 5, together with the upper sleeve 7 and the two connecting rods 10. The bidirectional torsion spring can enable the climbing-proof rod 5 to reset together with the upper sleeve 7 and the two connecting rods 10, and after the climbing-proof rod 5 is reset together with the upper sleeve 7 and the two connecting rods 10, the reset spring 9 pushes the sleeve to move upwards, so that the upper sleeve 7 is sleeved at the joint of the vertical rod 4 and the climbing-proof rod 5, the relative rotation between the vertical rod 4 and the climbing-proof rod 5 is limited, the climbing-proof rod 5 is stabilized, and the vertical rod 4 and the climbing-proof rod 5 are located on the same straight line. Further preferably, a bidirectional torsion spring is arranged between the connecting rod 10 and the lower sleeve 8, and after the anti-climbing rod 5, together with the upper sleeve 7, and the two connecting rods 10 rotate around the joint of the vertical rod 4 and the anti-climbing rod 5, the bidirectional torsion spring can twist to reset the anti-climbing rod 5, together with the upper sleeve 7 and the two connecting rods 10. Because the bidirectional torsion spring is arranged between the first hinge part and the second hinge part and the bidirectional torsion spring is also arranged between the connecting rod 10 and the lower sleeve 8, the capacity of the anti-chuck safety road guardrail of the invention for returning to the use state under the normal condition can be improved. It should be noted that the contents of this section may refer to the prior art such as the invention patent application No. 201611181046.3, and will not be specifically developed here.
In an alternative embodiment, the return spring 9 is located below the lower sleeve 8, one end of the return spring 9 is connected to the lower sleeve 8, and the other end of the return spring 9 is connected to the vertical rod 4. Specifically, optionally, the vertical rod 4 is provided with a limiting boss 12 along the circumferential direction, and the other end of the return spring 9 is abutted against the limiting boss 12. In order to improve the climbing prevention capability of the climbing prevention rod 5, the top end of the climbing prevention rod 5 is pointed.
In order to prevent the first pin shaft 6 and/or the second pin shaft 11 from falling from the pin hole, one end or both ends of the first pin shaft 6 and/or the second pin shaft 11 are further provided with a split pin for preventing the first pin shaft 6 and/or the second pin shaft 11 from sliding off, and when the split pin is only arranged at one end of the first pin shaft 6 and/or the second pin shaft 11, the other end of the first pin shaft 6 and/or the second pin shaft 11 can be provided with a shoulder. Specifically, optionally, the radial dimensions of the first pin 6 and the second pin 11 are the same.
In order to improve the smoothness of the sliding between the upper sleeve 7 and the climbing-proof rod 5, one of the upper sleeve 7 and the climbing-proof rod 5 is provided with a sliding part, the other one of the upper sleeve 7 and the climbing-proof rod 5 is provided with a sliding groove in sliding fit with the sliding part, the sliding part can be a roller or a ball or a sliding block, meanwhile, the sliding part and the sliding groove are used for limiting the limit position of the upper sleeve 7 relative to the upward and downward movement of the climbing-proof rod 5, when the upper sleeve 7 moves downward to the limit position relative to the climbing-proof rod 5, the second pin shaft 11 is coaxial with the first pin shaft 6, and at the moment, the climbing-proof rod 5 together with the upper sleeve 7 and the two connecting rods 10 can rotate around the joint of the vertical rod 4 and the climbing-proof rod 5.
In summary, the anti-sticking safety road guardrail of the invention has the sleeve member sleeved at the joint of the vertical rod 4 and the anti-climbing rod 5, and the sleeve member can slide on the joint and the vertical rod 4 and the anti-climbing rod 5 as required, under the normal condition, under the action of the return spring 9, the upper sleeve 7 is sleeved at the joint of the vertical rod 4 and the anti-climbing rod 5 to limit the relative rotation between the vertical rod 4 and the anti-climbing rod 5, so as to stabilize the anti-climbing rod 5, so that the vertical rod 4 and the anti-climbing rod 5 are on the same straight line, the anti-climbing rod 5 can play a good anti-climbing role, once a person leans on the guardrail, the head can slide down the sleeve member when the head is clamped between the adjacent anti-climbing rods 5, and when the head moves to the second pin shaft 11 and the first pin shaft 6 are coaxial, the anti-climbing rod 5, together with the upper sleeve 7 and the two connecting rods 10 can rotate around the joint of the vertical rod 4 and the anti-climbing rod 5, so at horizontal pull-out head in-process, anti-creep rod 5 can center on montant 4 and anti-creep rod 5's junction is rotatory, can take the head out, leads to the head to be blocked when avoiding horizontal application of force and dies, consequently this guardrail can not influence normal use, and has the effect of preventing the dop. Therefore, the anti-sticking safety road guardrail can stabilize the anti-climbing rods 5 under normal conditions and can also cope with the situation that the heads of personnel are stuck between the adjacent anti-climbing rods 5.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides an anti-sticking head safety road guardrail, includes stand (1) that two vertical intervals set up, is connected with horizontal pole (2) and sheer pole (3) on being parallel to each other and transversely setting up between two stand (1), goes up horizontal pole (2) and is located sheer pole (3) top, goes up and is connected with a plurality of montants (4) that are parallel to each other and vertically set up between horizontal pole (2) and sheer pole (3), it is equipped with a plurality of poles (5) of climbing of preventing to go up horizontal pole (2) top, prevent pole (5) of climbing with montant (4) one-to-one sets up its characterized in that: the anti-climbing device is characterized by further comprising a kit, wherein the vertical rod (4) penetrates through the upper cross rod (2) and is rotatably connected with the anti-climbing rod (5) through a first pin shaft (6), the extending direction of the first pin shaft (6) is perpendicular to the upper cross rod (2), the kit is sleeved at the joint of the vertical rod (4) and the anti-climbing rod (5), the kit comprises an upper sleeve (7), a lower sleeve (8), a reset spring (9) and two connecting rods (10) which are connected with the upper sleeve (7) and the lower sleeve (8), the two connecting rods (10) are symmetrically arranged at two axial ends of the first pin shaft (6), the upper ends of the two connecting rods (10) are fixedly connected with the upper sleeve (7), the lower ends of the two connecting rods (10) are rotatably connected with the lower sleeve (8) through a second pin shaft (11), and the extending direction of the second pin shaft (11) is parallel to the extending direction of the first pin shaft (6), the reset spring (9) is connected with the sleeve, the reset spring (9) has a movement trend that the upper sleeve (7) is sleeved at the joint of the vertical rod (4) and the climbing-proof rod (5), the sleeve can axially move along the vertical rod (4) and the climbing-proof rod (5), and when the sleeve moves to the position where the second pin shaft (11) is coaxial with the first pin shaft (6), the climbing-proof rod (5) together with the upper sleeve (7) and the two connecting rods (10) can rotate around the joint of the vertical rod (4) and the climbing-proof rod (5); the anti-climbing device is characterized in that the top end of the vertical rod (4) and the bottom end of the anti-climbing rod (5) are respectively provided with a first hinge part and a second hinge part, the first hinge part and the second hinge part are hinged through a first pin shaft (6), one of the upper sleeve (7) and the anti-climbing rod (5) is provided with a sliding piece, and the other one of the upper sleeve and the anti-climbing rod is provided with a sliding groove in sliding fit with the sliding piece.
2. The anti-chuck safety road guardrail of claim 1, wherein: and a bidirectional torsion spring is arranged between the first hinge part and the second hinge part, and after the anti-climbing rod (5) together with the upper sleeve (7) and the two connecting rods (10) rotate around the joint of the vertical rod (4) and the anti-climbing rod (5), the bidirectional torsion spring can twist to reset the anti-climbing rod (5) together with the upper sleeve (7) and the two connecting rods (10).
3. The anti-chuck safety road guardrail of claim 1, wherein: and a bidirectional torsion spring is arranged between the connecting rod (10) and the lower sleeve (8), and after the anti-climbing rod (5) together with the upper sleeve (7) and the two connecting rods (10) rotate around the joint of the vertical rod (4) and the anti-climbing rod (5), the bidirectional torsion spring can twist to reset the anti-climbing rod (5) together with the upper sleeve (7) and the two connecting rods (10).
4. The anti-chuck safety road guardrail of claim 1, wherein: reset spring (9) are located the below of lower sleeve (8), reset spring (9) one end with lower sleeve (8) are connected, reset spring (9) the other end with montant (4) are connected.
5. The anti-chuck safety road guardrail of claim 4, wherein: the vertical rod (4) is provided with a limiting boss (12) along the circumferential direction, and the other end of the reset spring (9) is abutted to the limiting boss (12).
6. The anti-chuck safety road guardrail according to any one of claims 1 to 5, wherein: the top end of the anti-climbing rod (5) is pointed.
7. The anti-chuck safety road guardrail according to any one of claims 1 to 5, wherein: one end or two ends of the first pin shaft (6) and/or the second pin shaft (11) are/is also provided with split pins for preventing the pin shafts from sliding off.
8. The anti-chuck safety road guardrail according to any one of claims 1 to 5, wherein: the radial sizes of the first pin shaft (6) and the second pin shaft (11) are consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911178683.9A CN112854064B (en) | 2019-11-27 | 2019-11-27 | Anti-sticking head safety road guardrail |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911178683.9A CN112854064B (en) | 2019-11-27 | 2019-11-27 | Anti-sticking head safety road guardrail |
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| CN112854064A CN112854064A (en) | 2021-05-28 |
| CN112854064B true CN112854064B (en) | 2022-04-12 |
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| EP0155840A2 (en) * | 1984-03-19 | 1985-09-25 | The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and | Apparatus and method for providing access to the underside of a bridge-deck |
| AR064139A1 (en) * | 2007-12-05 | 2009-03-18 | Kum Dong Steel Construction Co | ROAD DEFENSE WITH IMPACT SHOCK CLAMP |
| CN107304544A (en) * | 2016-04-22 | 2017-10-31 | 江阴市东升建筑机械有限公司 | A kind of anti-jam guardrail |
| CN105887676A (en) * | 2016-06-28 | 2016-08-24 | 无锡市惠山合力传热设备厂 | Anti-climb railing |
| CN106702925A (en) * | 2016-12-06 | 2017-05-24 | 钱培玉 | Improved safe road guardrail |
| CN106400717A (en) * | 2016-12-13 | 2017-02-15 | 钱培玉 | Safe road guardrail with provisional insertion and extraction structure |
| CN106498880A (en) * | 2016-12-13 | 2017-03-15 | 钱培玉 | A kind of anti-dop green route guardrail |
| CN206457758U (en) * | 2016-12-13 | 2017-09-01 | 钱培玉 | A kind of anti-dop green route guardrail |
| CN108166417A (en) * | 2017-12-13 | 2018-06-15 | 滁州博昊门业制造有限公司 | A kind of guardrail being easily installed |
| CN208072200U (en) * | 2018-01-23 | 2018-11-09 | 新昌县焕宏农业有限公司 | A kind of greening fence protection unit for bridge |
| CN108774973A (en) * | 2018-06-28 | 2018-11-09 | 成都佳欣诚信科技有限公司 | A kind of road guard of novel Anti-knocking |
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| CN112854064A (en) | 2021-05-28 |
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