CN112709175A - Safety protection semicircular groove device for roadside electric power rod piece of low-grade highway - Google Patents
Safety protection semicircular groove device for roadside electric power rod piece of low-grade highway Download PDFInfo
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- CN112709175A CN112709175A CN202011559867.2A CN202011559867A CN112709175A CN 112709175 A CN112709175 A CN 112709175A CN 202011559867 A CN202011559867 A CN 202011559867A CN 112709175 A CN112709175 A CN 112709175A
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- electric power
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- pad
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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
- E01F15/14—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 specially adapted for local protection, e.g. for bridge piers, for traffic islands
- E01F15/141—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 specially adapted for local protection, e.g. for bridge piers, for traffic islands for column or post protection
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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
- E01F15/14—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 specially adapted for local protection, e.g. for bridge piers, for traffic islands
- E01F15/145—Means for vehicle stopping using impact energy absorbers
- E01F15/146—Means for vehicle stopping using impact energy absorbers fixed arrangements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Vibration Dampers (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention belongs to the technical field of road traffic safety, and particularly provides a low-grade highway roadside electric power rod piece safety protection semicircular groove device which comprises an anti-collision pad for automobile collision prevention, wherein the anti-collision pad is an annular sealing sleeve piece with a hollow inner part, the inner wall of the annular sealing sleeve piece is fixedly attached to and surrounds the electric power rod piece, the length of the anti-collision pad is not less than 90cm, and the inner side of the anti-collision pad is of a concave-convex circular groove structure with protrusions and grooves alternately arranged. The scheme expands the contact area of the telegraph pole and the automobile, and the telegraph pole deforms to absorb energy after being collided by the device, so that the reaction is reduced, the deformation and the acceleration of the automobile can be effectively reduced, the harm of the automobile to the automobile and passengers when the automobile collides with the telegraph pole is reduced, the road safety is improved, and the passengers are protected; on the other hand, by adopting the assembly style, the anti-collision cushion is directly arranged on the electric power pole before the electric power pole is put into use, the construction process is simple, and the requirements on manpower and material resources are low.
Description
Technical Field
The invention belongs to the technical field of road traffic safety, and particularly relates to a safety protection semicircular groove device for a roadside electric power rod piece of a low-grade highway.
Background
Early utility poles started from wood, which has the advantages of easily available materials, light weight, easy erection, etc. With the development of steel and reinforced concrete, and the demand for technology, these two materials are gradually replacing wood poles. The reinforced concrete (also called as cement pole) is divided into two types of prestress and non-prestress, wherein the specification of the prestress cement pole mainly comprises the following steps:
the non-prestressed concrete pole specification mainly comprises:
rice,
And the like. The telegraph pole made of steel materials is made of high-strength steel such as Q235 carbon structural steel Q345 and Q390 low-alloy steel Q420, the thickness of the telegraph pole is generally 5-25 mm, and due to the fact that the two materials are good in quality, high in hardness and not prone to deformation, after an automobile is collided, the vehicle structure is damaged greatly by the reaction force of collision, and the life safety of personnel on the automobile is threatened.
At present, most telegraph poles of low-grade roads are arranged on the road sides, and the telegraph poles originally do not occupy the width of the road and have a sufficient distance with the road surface. Due to the limitation of the conditions outside the road, if the roadside is a residential building or a mountain area, a mountain body or a side slope may be formed, and when the road is expanded or newly built, the telegraph pole cannot be unfolded, and the safety distance between the telegraph pole and the road surface cannot be guaranteed.
The prior anti-collision measures for telegraph poles mainly comprise: guardrail, anticollision sign, sand bucket etc.. However, in most of roads at present, the distance between the road surface and the telegraph pole is short, and no guardrail is arranged, so that the measure of arranging the guardrail cannot be generally used. Some telegraph poles are provided with anti-collision marks, which only have a warning effect and cannot play a role in protecting when an automobile collides with the telegraph poles. Still put the sand bucket in front of the wire pole, but it does not have stability, and the car is gone to the back of hitting, and the sand bucket deviates from the primary importance, then needs the manual work to go to maintain, otherwise does not play continuous protection effect, and this has intangibly increased the cost of labor. The current technical scheme mainly aims at the optimal design of the telegraph pole, does not belong to the field of traffic safety, and does not consider the safety of vehicles and passengers, so that a facility is urgently needed to minimize the injury and loss when an automobile collides with the telegraph pole.
Disclosure of Invention
The invention aims to provide a low-grade highway roadside electric power rod piece safety protection semicircular groove device which is simple in structure and low in cost, so as to solve the problem of collision avoidance of the highway roadside electric power rod piece.
Therefore, the invention provides a safety protection semicircular groove device for a low-grade highway roadside electric power rod piece, which comprises an anti-collision pad for automobile collision prevention, wherein the anti-collision pad is an annular sealing sleeve piece with a hollow inner part, the inner wall of the annular sealing sleeve piece is fixedly attached to and surrounds the electric power rod piece, the length of the anti-collision pad is not less than 90cm, and the inner side of the anti-collision pad is of a concave-convex circular groove structure with protrusions and grooves alternately arranged.
Preferably, the center of the crash pad is 150cm from the ground.
Preferably, the circle radius of the top end and the circle radius of the bottom end of the concave-convex circular groove are both 3 cm.
Preferably, the material of the crash pad is rubber.
Preferably, the parameter A of the hardness of the rubber material of the crash pad is 0.6, and the parameter B is 4.
Preferably, the crash pad is used in an automobile crash-proof occasion with the limit vehicle speed of 60 km/h.
Preferably, the crash pad is an annular cylindrical sleeve, the annular cylindrical sleeve is provided with a joint opening, and the joint opening is connected through a screw.
Preferably, the anti-collision pad includes two flexible pads, two the both ends of flexible pad can be dismantled respectively end to end and meet and form cylindrical cover and establish on the power pole, and one of them is the collision surface.
Preferably, one end of the flexible pad is provided with a plurality of bulges, the other end of the flexible pad is provided with a plurality of corresponding grooves, the bulges and the grooves are correspondingly provided with through holes, and the string pin penetrates through the through holes to connect the two flexible pads.
The invention has the beneficial effects that: the safety protection semicircular groove device for the low-grade highway roadside electric power rod piece comprises an anti-collision pad for automobile anti-collision, wherein the anti-collision pad is an annular sealing sleeve piece with a hollow inner part, the inner wall of the annular sealing sleeve piece is fixedly attached to and surrounds the electric power rod piece, and the length of the anti-collision pad is not less than 90 cm. The scheme expands the contact area of the telegraph pole and the automobile, and the telegraph pole deforms to absorb energy after being collided by the device, so that the reaction is reduced, the deformation and the acceleration of the automobile can be effectively reduced, the harm of the automobile to the automobile and passengers when the automobile collides with the telegraph pole is reduced, the road safety is improved, and the passengers are protected; on the other hand, by adopting the assembly style, the anti-collision cushion is directly arranged on the electric power pole before the electric power pole is put into use, the construction process is simple, and the requirements on manpower and material resources are low.
The present invention will be described in further detail below with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic view of an installation structure of a low-grade highway roadside electric power rod piece safety protection semicircular groove device of the invention;
FIG. 2 is a schematic diagram of an automobile crash test of the low-grade highway roadside electric power rod piece safety protection semicircular groove device of the invention;
FIG. 3 is a comparison diagram before and after collision of the low-grade road roadside electric power rod piece safety protection semicircular groove device of the invention;
FIG. 4 is a schematic connection diagram of an opening of a joint part of an annular cylindrical sleeve of the low-grade highway roadside electric power rod piece safety protection semicircular groove device;
FIG. 5 is an installation structure diagram of a circular cylindrical sleeve of the low-grade highway roadside electric power rod piece safety protection semi-circular groove device;
fig. 6 is a schematic structural diagram of the flexible pad of the low-grade highway roadside electric power rod piece safety protection semicircular groove device.
Reference numerals: the anti-collision device comprises an anti-collision pad 1, an electric power rod 2, an automobile 3, a groove 4, screws 5, a flexible pad 6 and a protrusion 7.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 1 to 6, an embodiment of the invention provides a low-grade highway roadside electric power rod piece safety protection semicircular groove device, which comprises an anti-collision pad 1 for preventing a car 3 from collision, wherein the anti-collision pad 1 is an annular sealing sleeve with a hollow inner part, the inner wall of the annular sealing sleeve is fixedly attached to and surrounds 2 electric power rods, the length of the anti-collision pad 1 is not less than 90cm, and the inner side of the anti-collision pad 1 is of a concave-convex circular groove structure with protrusions and grooves alternately arranged. The scheme expands the contact area between the telegraph pole and the automobile 3, and the telegraph pole deforms to absorb energy after being collided by the device, so that the reaction is reduced, the deformation and the acceleration of the automobile can be effectively reduced, the harm of the automobile 3 and passengers caused by the fact that the automobile 3 collides with the telegraph pole is reduced, the road safety is improved, and the passengers are protected; on the other hand, through adopting the equipment style, directly overlap the crashproof pad 1 cover on electric power pole 2 before electric power pole 2 comes into operation, the construction process is simple, and is little to manpower and materials demand.
Specifically, the embodiment of the invention mainly aims to reduce the damage of an automobile 3 to a vehicle and passengers when the automobile collides with a telegraph pole, and provides the anti-collision cushion 1 which is a buffer sleeve hooped on the periphery of the telegraph pole. And the device is simple to install and has high social and economic benefits. The specific scheme is as follows:
the semicircular groove device is mainly used for medium and small passenger cars, and large vehicles such as large trucks and the like have great difference in mass and body structure with cars, and the requirements for protection devices are different, so that the condition of large vehicle collision is not considered. The height of a front bumper of a common car from the ground is 30-50cm, the height of an SUV is 80cm, and the height of a protective device is 90cm in order to cover most of the models of medium and small passenger cars. In order to enable the protection device to play a certain buffering role and restore the original shape and function after deformation, the rubber with harder texture is comprehensively selected as the material of the crash pad 1.
The protection principle of the crash pad 1 is mainly that the crash pad 1 absorbs energy and deforms to play a role in buffering. In contrast, the crash pad 1 with a hollow inner side can deform the inner side when being impacted by a vehicle, and the hollow inner side has air, so that the crash pad plays a spring-like role, enhances the buffering effect, and can restore the original shape after the impact. The solid crash pad 1 has smaller deformation, the action surface is only the outer side, and the buffering effect is not as good as that of the solid crash pad. From the aspect of economic benefit, the hollow device saves more materials, and comprehensively compares the materials, and selects the scheme that the cross section is hollow.
Two cross section forms are provided for the crash pad 1, and a scheme with the optimal protection effect is selected through simulation. The diameter of a cement telegraph pole, namely an electric pole, is 260 mm. The first scheme is as follows: the inner side of the crash pad 1 is a semicircle with a convex groove with the radius of 3cm, the semicircle is mutually alternated, the thickness of the middle crash pad 1 is 12cm, and the total thickness is 18 cm. Scheme II: the inner side of the crash pad 1 is a semicircle of 3cm, the interval between the crash pad 1 and the main body of the crash pad is 1.5cm, the interval between each convex semicircle is 2.2cm, the thickness of the main body of the crash pad 1 is 13cm, and the total thickness is 17.5 cm. Through simulation software, a collision experiment is carried out on the same vehicle type and at the same speed, and the result shows that the cross section form of the first scheme has the best anti-collision effect.
In order to further optimize the crash pad 1, three different rigidities of the same rubber material are selected for simulation experiments. The parameters of the hardness A are A:8 and B:50. Parameter A of hardness B: 1.6, B: 10. the hardness C has the parameters of A:0.6 and B: 4. The cross section form of the first scheme is adopted for carrying out collision simulation experiments. From experimental results, the material with the hardness of A has insignificant deformation when being collided, and meanwhile, the vehicle has serious deformation; the material with the hardness B has more obvious deformation during collision, and the vehicle deformation degree is reduced compared with that of the material with the hardness A; in a collision simulation experiment, the deformation of a vehicle is minimum, and the shape recovery capability of the buffer device is good after deformation. In summary, the rubber material with the hardness of C is selected.
The design speed of a common low-grade highway is 40km/h, the design speed of some mountain winding highways is 20km/h, and three times of collision simulation experiments under different speeds are respectively carried out in order to determine the speed range effectively protected by the semicircular groove device. As can be seen from the simulation model, when the collision speed is 40km/h, the front end of the vehicle is obviously deformed, the bearing of the automobile 3 is slightly bent downwards, the anti-collision cushion 1 slightly shakes, and in general, the anti-collision device has a good anti-collision effect; when the collision speed is 50km/h, the front end of the automobile 3 deforms more seriously, the downward bending of the bearing of the automobile 3 is serious, and the buffer device shakes obviously; when the collision speed is 60km/h, the front end of the automobile 3 is seriously deformed, the front wheel deflects towards the telegraph pole direction, the automobile 3 has serious downward bending of the bearing, the rear wheel has the sign of being separated from the ground, and the buffer device shakes violently, which shows that the protection effect of the buffer device at the speed is seriously reduced. It can thus be determined that the buffer device is suitable for a limit vehicle speed of 60 km/h. In fig. 3, the left side is a normal state of the guard device, and the right side is a state after the collision of the automobile 3. Therefore, the concave-convex circular grooves not only play a role in mounting and fixing, but also play a good role in buffering.
In a preferred embodiment, as shown in fig. 1, fig. 1 shows a mounting sectional view, a front view, and a dimensional configuration diagram of the semicircular groove device. The crash pad 1 is an annular cylindrical sleeve, the annular cylindrical sleeve is provided with a joint part opening, and the joint part opening is connected through a screw 5.
Preferably, as shown in fig. 5 to 6, the crash pad 1 includes two flexible pads 6, two ends of the two flexible pads 6 are detachably connected end to end respectively to form a cylindrical sleeve on the power rod 2, and one of the two flexible pads is a collision surface. One end of the flexible pad 6 is provided with a plurality of bulges 7, the other end of the flexible pad is provided with a plurality of corresponding grooves 4, the bulges 7 and the grooves 4 are correspondingly provided with through holes, and the string pin penetrates through the through holes to connect the two flexible pads 6.
Specifically, the structure is two ways: one is integral, and the other is assembled in a split mode. In the case of the integral type, the damping device is designed in the form of a cylinder as shown in the figure, and the connection structure is designed at the opening of the joint. The joint is cut at a certain angle to form a complementary shape, and the side surface of the joint is fixed by a screw 5. Wherein, the small hole is the installation position of the screw 5. The integral mounting interface cannot be placed at the collision face with the car 3. The split assembly type is that the device is divided into two parts for assembly, the joint is designed into an embedded type, a hole is reserved at the upper end of each groove 4 and each protrusion, and the grooves and the protrusions can be fixed from top to bottom by using a string pin. For the advantages and the disadvantages of the two forms, the integral installation is more convenient, but when the collision surface is out of action, the whole material is replaced, and the material is wasted. The separated two-piece design is more flexible, one piece of the two-piece design is designed to be collided, and when the collision surface is damaged and fails, a new buffer sleeve can be replaced, namely only one piece of the flexible cushion 6 needs to be replaced, so that the waste of materials is reduced, and the cost is saved. And can show at buffer and paste the reflection of light subsides, remind the driver, reduce the probability of colliding the wire pole.
The device has the advantages that:
(1) the damage to the automobile and passengers caused by the fact that the automobile collides with the wire pole can be effectively reduced, and the road safety is improved.
(2) This patent adopts the equipment pattern, and the construction process is simple, and is little to manpower and materials demand.
Compared with the prior art, the invention has the beneficial effects that:
1. the anti-collision effect of the anti-collision pad is good, and the anti-collision pad plays a good role in protecting the vehicle and passengers.
2. The plastic material is light in weight, and the assembly process and the construction are convenient and fast.
3. Compared with a guardrail, the guardrail is directly connected with a telegraph pole without too high arrangement conditions; compare with the sand bucket, the crashproof pad fixity is better to crashproof effect is better.
4. The plastic material has the advantages of durability, water resistance, strong corrosion resistance, low manufacturing cost and the like.
The invention has the beneficial effects that: the safety protection semicircular groove device for the low-grade highway roadside electric power rod piece comprises an anti-collision pad for automobile anti-collision, wherein the anti-collision pad is an annular sealing sleeve piece with a hollow inner part, the inner wall of the annular sealing sleeve piece is fixedly attached to and surrounds the electric power rod piece, and the length of the anti-collision pad is not less than 90 cm. The scheme expands the contact area of the telegraph pole and the automobile, and the telegraph pole deforms to absorb energy after being collided by the device, so that the reaction is reduced, the deformation and the acceleration of the automobile can be effectively reduced, the harm of the automobile to the automobile and passengers when the automobile collides with the telegraph pole is reduced, the road safety is improved, and the passengers are protected; on the other hand, by adopting the assembly style, the anti-collision cushion is directly arranged on the electric power pole before the electric power pole is put into use, the construction process is simple, and the requirements on manpower and material resources are low.
The above examples are merely illustrative of the present invention and should not be construed as limiting the scope of the invention, which is intended to be covered by the claims and any design similar or equivalent to the scope of the invention.
Claims (10)
1. The utility model provides a low grade highway roadside electric power member safety protection half slot device which characterized in that: including the crash pad that is used for car anticollision, the crash pad is the sealed external member of inside hollow annular, the inner wall of the sealed external member of annular is fixed hugs closely and encircles on electric power member, and the length of crash pad is not less than 90cm, the inboard of crash pad is protruding and the mutual alternate arrangement's of recess unsmooth circular slot structure.
2. The low-grade highway roadside electric power bar piece safety protection half slot device of claim 1, characterized in that: the height of the center of the crash pad from the ground is 150 cm.
3. The low-grade highway roadside electric power bar piece safety protection half slot device of claim 1, characterized in that: the circle radius of the top end and the bottom end of the concave-convex circular groove are both 3 cm.
4. The low-grade highway roadside electric power bar piece safety protection half slot device of claim 1, characterized in that: the material of the crash pad is rubber.
5. The low-grade highway roadside electric power bar piece safety protection half slot device of claim 4, characterized in that: the parameter A of the hardness of the rubber material of the anti-collision pad is 0.6, and the parameter B is 4.
6. The low-grade highway roadside electric power bar piece safety protection half slot device of claim 1, characterized in that: the anti-collision cushion is used in the automobile anti-collision occasions with the limit speed of 60 km/h.
7. The low-grade highway roadside electric power bar piece safety protection half slot device of claim 1, characterized in that: the thickness of the crash pad is 18 cm.
8. The low-grade highway roadside electric power bar piece safety protection half slot device of claim 1, characterized in that: the anti-collision pad is an annular cylindrical sleeve, the annular cylindrical sleeve is provided with a joint part opening, and the joint part opening is connected through screws.
9. The low-grade highway roadside electric power bar piece safety protection half slot device of claim 1, characterized in that: the anti-collision pad comprises two flexible pads, wherein two ends of each flexible pad are detachably connected end to end respectively to form a cylindrical sleeve which is sleeved on the power rod, and one of the flexible pads is a collision surface.
10. The low-grade highway roadside electric power bar safety protection half slot device of claim 9, characterized in that: one end of the flexible pad is provided with a plurality of bulges, the other end of the flexible pad is provided with a plurality of corresponding grooves, the bulges and the grooves are correspondingly provided with through holes, and the string pin penetrates through the through holes to connect the two flexible pads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011559867.2A CN112709175A (en) | 2020-12-25 | 2020-12-25 | Safety protection semicircular groove device for roadside electric power rod piece of low-grade highway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011559867.2A CN112709175A (en) | 2020-12-25 | 2020-12-25 | Safety protection semicircular groove device for roadside electric power rod piece of low-grade highway |
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| Publication Number | Publication Date |
|---|---|
| CN112709175A true CN112709175A (en) | 2021-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011559867.2A Pending CN112709175A (en) | 2020-12-25 | 2020-12-25 | Safety protection semicircular groove device for roadside electric power rod piece of low-grade highway |
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| CN (1) | CN112709175A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114458070A (en) * | 2022-03-04 | 2022-05-10 | 徐龙 | Safety protection corrosion-resistant telegraph pole for power line |
| CN114703983A (en) * | 2022-04-19 | 2022-07-05 | 北京首钢建设集团有限公司 | Anti-impact structure between continuous-span storage bins |
-
2020
- 2020-12-25 CN CN202011559867.2A patent/CN112709175A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114458070A (en) * | 2022-03-04 | 2022-05-10 | 徐龙 | Safety protection corrosion-resistant telegraph pole for power line |
| CN114458070B (en) * | 2022-03-04 | 2023-09-08 | 郑州市雷德水泥制品有限公司 | Corrosion-resistant wire pole of safety protection for power line |
| CN114703983A (en) * | 2022-04-19 | 2022-07-05 | 北京首钢建设集团有限公司 | Anti-impact structure between continuous-span storage bins |
| CN114703983B (en) * | 2022-04-19 | 2023-08-15 | 北京首钢建设集团有限公司 | Impact-resistant structure between continuous-span storage bins |
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