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CN112031521A - Road construction fence - Google Patents

Road construction fence Download PDF

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Publication number
CN112031521A
CN112031521A CN202010914580.0A CN202010914580A CN112031521A CN 112031521 A CN112031521 A CN 112031521A CN 202010914580 A CN202010914580 A CN 202010914580A CN 112031521 A CN112031521 A CN 112031521A
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CN
China
Prior art keywords
column
fence
fixed
road
turnover
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202010914580.0A
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Chinese (zh)
Other versions
CN112031521B (en
Inventor
庞康利
陈龙辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhenjiang Huatuo Power Equipment Co ltd
Original Assignee
Wenzhou Huazhi Yuqiang Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Wenzhou Huazhi Yuqiang Technology Co ltd filed Critical Wenzhou Huazhi Yuqiang Technology Co ltd
Priority to CN202010914580.0A priority Critical patent/CN112031521B/en
Publication of CN112031521A publication Critical patent/CN112031521A/en
Application granted granted Critical
Publication of CN112031521B publication Critical patent/CN112031521B/en
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H17/00Fencing, e.g. fences, enclosures, corrals
    • E04H17/14Fences constructed of rigid elements, e.g. with additional wire fillings or with posts
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C9/00Special pavings; Pavings for special parts of roads or airfields
    • E01C9/08Temporary pavings
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/343Structures characterised by movable, separable, or collapsible parts, e.g. for transport

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)

Abstract

The invention discloses a road construction fence, which comprises a fence base and a fence body, wherein the fence body can be installed on the fence base, a road plate is arranged on one side of the fence body, the lower side edge of the road plate is hinged with the fence base and can be arranged on the fence base in an up-and-down overturning manner, through holes are formed in the fence body, the road plate covers the through holes when being upwards overturned and attached to the fence body, the road is formed and the through holes are simultaneously opened when the road plate is downwards overturned, an overturning device is arranged on the fence base, a trigger switch is arranged on the overturning device and comprises a main switch and a secondary switch, the main switch and the secondary switch are both connected with the overturning device, and only when the main switch is opened, the secondary switch can be opened to start the overturning device, so that the road plate is downwards overturned to form a. The road construction fence provides a stepping space for pedestrians when the pedestrians need to pass through by arranging the road boards.

Description

Road construction fence
Technical Field
The invention relates to a construction fence, in particular to a road construction fence.
Background
The construction fence is very useful at the in-process of daily construction, through the setting of construction fence, alright effectual realization encloses the construction area to this avoids appearing the problem that leads to the construction accident because of entering such as idle man at the in-process of construction.
However, in the prior art, the construction of the main road frequently occurs, and the pedestrian traffic of the main road is very large, so that the passing efficiency of pedestrians can be greatly influenced by blocking the completely closed fence in the prior art, and the life of people nearby the road repair can be influenced.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a road construction fence capable of assisting pedestrians to pass through during the period of non-construction.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a road construction rail, includes the rail body of rail base and mountable on the rail base, one side of the rail body is equipped with the road board, the lower side of road board is articulated with the rail base to the setting that can overturn from top to bottom is on the rail base, the clearing hole has been seted up on the rail body, covers the clearing hole when the curb board upwards turns up the subsides on the rail body, constitutes formation road and opens the clearing hole simultaneously when overturning downwards, be equipped with turning device on the rail base, the last trigger switch that is equipped with of turning device, trigger switch includes main switch and secondary switch, main switch and secondary switch all are connected with turning device, and only when main switch was opened, secondary switch could open and start turning device, and then order about the downward upset of road board and form the road.
As a further improvement of the invention, the turnover device comprises a turnover motor, a controller, a turnover gear and a turnover shaft, the turnover shaft is rotatably arranged on the fence base, the turnover gear is coaxially sleeved on the turnover shaft, the lower side edge of the circuit board is fixed on the side surface of the turnover shaft, the body of the turnover motor is fixed on the fence base at a position close to the turnover gear, a rotating shaft of the turnover motor is coaxially sleeved with a worm, the worm is meshed with the turnover gear, the controller is fixed on the body of the turnover motor and connected with the turnover motor to control the turnover motor to rotate, and the main switch and the secondary switch are both connected with the controller to output signals to the controller.
As a further improvement of the invention, one side of the circuit board, which is back to the fence body, is provided with a plurality of supporting columns, and one end of each supporting column, which is back to the circuit board, is provided with a supporting plate.
As a further improvement of the invention, the supporting column comprises a fixed column and a telescopic column, one end of the fixed column is fixed on the circuit board, the supporting plate is fixed on one end of the telescopic column, which is opposite to the supporting plate, is coaxially and slidably arranged on the fixed column in a penetrating manner, a hydraulic charging and discharging device is arranged at the center of the circuit board, a connecting pipe is arranged on the side surface of the fixed column, one end of the connecting pipe is communicated with the inside of the fixed column, and the other end of the connecting pipe is connected with the hydraulic charging and discharging device, so that the sliding degree of.
As a further improvement of the present invention, the hydraulic charging and discharging device includes a liquid storage tank, a hydraulic pump and a detection camera, the hydraulic pump is disposed on the liquid storage tank and connected to the connection pipe to pump the liquid in the liquid storage tank and input the liquid into the connection pipe, and the detection camera is connected to the hydraulic pump to input a signal into the hydraulic pump after detecting the shape of the external ground.
As a further improvement of the invention, the support column comprises a fixed column and a sliding column, one end of the fixed column is fixed on the circuit board, the support plate is fixed on the sliding column, one end of the sliding column, which is opposite to the support plate, is slidably arranged in the fixed column, a lock column is arranged in the fixed column in a penetrating manner, one end of the lock column is fixed on the end part of the fixed column, the other end of the lock column penetrates through the center of the support plate after penetrating through the fixed column and the sliding column, the lock column comprises a clamping column and two connecting columns, two ends of the clamping column are coaxially fixed on the end parts of the two connecting columns respectively, one end of the two connecting columns, which is opposite to the clamping column, is connected with the end part of the fixed column respectively and penetrates through the support plate to the outside, the clamping column comprises two end columns respectively connected with the two connecting columns and a plurality of constituent rods, one end of each constituent rod is hinged with each other, the other end of each constituent rod is hinged with, the inner wall of the sliding column is provided with a clamping groove relative to the clamping column, when the end part of the connecting column is abutted against the external ground and the connecting column slides towards the clamping column, the clamping column is opened, and the end part of the connecting rod is embedded into the clamping groove.
The construction fence structure has the advantages that the construction fence structure can be effectively formed through the arrangement of the fence base and the fence body, so that a construction area is effectively surrounded, the safety during construction is greatly improved, the road plate is arranged, the road structure for people to communicate can be effectively paved through the existence of the road plate when the road is not constructed, the road plate can be folded under the action of the turnover device when the road is required to be constructed, the problem that the construction is influenced due to the existence of the road plate can be solved, the effect that pedestrians can open the road plate by self can be effectively realized through the arrangement of the main switch and the secondary switch, and the construction road can be conveniently passed.
Drawings
FIG. 1 is a schematic structural view of a road construction fence according to the present invention;
FIG. 2 is a schematic structural view of embodiment 1 of the support column in FIG. 1;
fig. 3 is a schematic structural view of the support column in embodiment 2 of fig. 1.
Detailed Description
The invention will be further described in detail with reference to the following examples, which are given in the accompanying drawings.
Referring to fig. 1 to 3, the road construction fence of the embodiment includes a fence base 1 and a fence body 2 mountable on the fence base 1, a road plate 3 is disposed on one side of the fence body 2, a lower side edge of the road plate 3 is hinged to the fence base 1 and is disposed on the fence base 1 in a vertically-turnable manner, a through hole 21 is disposed on the fence body 2, the through hole 21 is covered when the road plate 3 is turned up and stuck on the fence body 2, the road is formed when the road plate is turned down, the through hole 21 is opened at the same time, a turning device 4 is disposed on the fence base 1, a trigger switch 5 is disposed on the turning device 4, the trigger switch 5 includes a main switch 51 and a sub switch 52, the main switch 51 and the sub switch 52 are both connected to the turning device 4, only when the main switch 51 is turned on, the sub switch 52 can be turned on to start the turning device 4, and further drive the road plate 3 to be turned down to form a, in the process of using the fence of the embodiment, the fence can be installed only by installing the fence base 1 on the left side and the right side of the road to be constructed and then installing the fence body 2 on the fence base 1, and in the using process, firstly, the turnover device 4 keeps the circuit board 3 in the retracted state, then, the main switch 51 is arranged on the inner side of the fence body 2, and the secondary switch 52 is arranged on the outer side of the fence body 2, so that in the construction process, the main switch 51 is in the closed state, then, the secondary switch 52 is in the useless state, even if an external pedestrian triggers the secondary switch 52, the turnover device 4 cannot act to drive the circuit board 3 to turn downwards to form the road, so that the problem that the construction is influenced by the fact that the external pedestrian presses the secondary switch 52 to lower the circuit board 3 in the construction process is avoided, and after the construction is suspended, the construction unit can trigger the main switch 51 to enable the secondary switch 52 to act, that is, when the outside pedestrian presses the secondary switch 52, the turnover device 4 will act to drive the road plate 3 to descend to form a road, and further open the passing hole 21, so that the pedestrian can pass through the road formed by the passing hole 21 and the road plate 31, and after the pedestrian passes through, the turnover device 4 will act again to effectively retract the road plate 3 to reconstruct the fence structure, so that the temporary passing effect for the pedestrian can be effectively realized, wherein the main switch 51 in the present embodiment can adopt a remote controller mode to facilitate the opening and closing of the main switch 51 by the construction unit, while the mode of detecting whether the pedestrian passes through in the present embodiment can be realized by adopting an infrared sensor, wherein in order to save the setting cost of the fence, in the process of using the present embodiment, several positions of the construction road are generally selected to place the fence of the present embodiment, and the rest of the fences are common fences, therefore, the passing efficiency is ensured, and the setting cost of the fence is not greatly increased.
As an improved specific embodiment, the turning device 4 includes a turning motor 41, a controller 42, a turning gear 43 and a turning shaft 44, the turning shaft 44 is rotatably disposed on the fence base 1, the turning gear 43 is coaxially sleeved on the turning shaft 44, the lower side of the circuit board 3 is fixed on the side surface of the turning shaft 44, the body of the turning motor 41 is fixed on the position of the fence base 1 near the turning gear 43, the rotating shaft of the turning motor is coaxially sleeved with a worm 45, the worm 45 is engaged with the turning gear 43, the controller 42 is fixed on the body of the turning motor 41 and connected with the turning motor 41 to control the turning motor 41 to rotate, the main switch 51 and the secondary switch 52 are both connected with the controller 42 to output signals to the controller 42, and through the arrangement of the controller 42, the turning motor 41, the turning gear 43 and the turning shaft 44, the driving circuit board 3 can be effectively turned up and down by controlling the turning motor 41 to rotate forward and backward through the controller 42, and a self-locking effect is realized by setting the worm 45 structure, so that the circuit board 3 can be vertically arranged without additionally setting other locking structures, the structure of the fence is simplified, and the operation failure rate is reduced.
As an improved specific embodiment, a plurality of supporting columns 31 are arranged on one side of the road plate 3, which faces away from the fence body 1, and a supporting plate 32 is arranged at one end of the supporting column 31, which faces away from the road plate 3, so that the ground contacted by the supporting column 31 is generally softer due to digging at a construction site, and therefore, by arranging the supporting plate 32, the contact area between the supporting column 31 and the ground can be effectively increased, so that the supporting column 31 can better support the road plate 3.
As an improved specific embodiment, the supporting column 31 includes a fixed column 311 and a telescopic column 312, one end of the fixed column 311 is fixed on the circuit board 3, the supporting plate 32 is fixed on one end of the telescopic column 312, which is opposite to the supporting plate 32, is coaxially and slidably inserted into the fixed column 311, a hydraulic charging and discharging device 33 is arranged at the center of the circuit board 3, a connecting pipe is arranged at the side surface of the fixed column 311, one end of the connecting pipe is communicated with the inside of the fixed column 311, and the other end of the connecting pipe is connected with the hydraulic charging and discharging device 33, so as to regulate and control the sliding degree of the telescopic column 312 through the hydraulic charging and discharging device 33, and by setting the supporting column 31 to be a combination of the fixed column 311 and the telescopic column 312, when the circuit board 3 is laid down to form a road, the supporting column 31 can be at a proper length, further avoid the problem of the easy damage of the board 3 of board 3 that leads to because the holding power is inhomogeneous of board 3, also through the setting of hydraulic pressure charge-discharge device 33, just can the different support columns 31 of effectual realization control have the effect of different length, and the structure is simpler moreover, easy realization, sets up a plurality of solenoid valves with support column 31 one-to-one in the hydraulic pressure charge-discharge device 33 in this embodiment, and every solenoid valve all has the serial number, controls the length of support column 31 through the mode of the on-off time of control solenoid valve.
As an improved specific embodiment, the hydraulic charging and discharging device 33 includes a liquid storage tank 331, a hydraulic pump 332 and a detection camera 333, the hydraulic pump 332 is disposed on the liquid storage tank 331 and connected to a connection pipe to pump liquid in the liquid storage tank 331 and input the liquid into the connection pipe, the detection camera 333 is connected to the hydraulic pump 332 to input a signal into the hydraulic pump 332 after detecting the shape of the external ground, and by setting the detection camera 333, the flatness condition on the current ground can be effectively detected in a shooting manner, so that the length of the supporting column 31 can be adjusted and controlled.
The embodiment provides another implementation manner of the supporting column 31, the supporting column 31 includes a fixed column 313 and a sliding column 314, one end of the fixed column 313 is fixed on the circuit board 3, the supporting disk 32 is fixed on the sliding column 314, one end of the sliding column 314 facing away from the supporting disk 32 is slidably inserted into the fixed column 313, a lock column 315 is inserted into the fixed column 313, one end of the lock column 315 is fixed on an end of the fixed column 313, the other end of the lock column 315 passes through the fixed column 313 and the sliding column 314 and then passes through a circle center of the supporting disk 32, the lock column 315 includes a clamping column 3151 and two connecting columns 3152, two ends of the clamping column 3151 are coaxially fixed on end portions of the two connecting columns 3152 respectively, one end of the two connecting columns 3152 facing away from the clamping column 3151 is connected on an end portion of the fixed column 313 and passes through the supporting disk 32 to the supporting disk, the clamping column 3151 includes two end columns connected with the two connecting columns 3152 respectively and a plurality of, the plurality of the forming rods are formed by hinging one ends of the two rods with each other, the other ends of the forming rods are respectively hinged with the two end posts, and are circumferentially distributed on the end surfaces of the end posts to form clamping posts 3152, clamping grooves 3141 are formed in the positions, corresponding to the clamping posts 3152, of the inner walls of the sliding posts 314, when the end parts of the connecting posts 3152 abut against the outside ground and the connecting posts 3152 slide towards the clamping posts 3152, the clamping posts 3152 are opened, the hinged end parts of the forming rods are embedded into the clamping grooves 3141, through the arrangement of the locking posts 315 in the structure, the sliding posts 314 can be driven to slide downwards under the action of the gravity of the supporting plate 32 in the process of putting down the circuit board 3 until the supporting plate 32 abuts against the outside ground, so that the effect of automatically regulating and controlling the supporting posts 31 is realized, and the current positions of the sliding posts 314 can be positioned through the action of the locking posts 315, and the effect that the length of the supporting, compared with the above-mentioned mode using the hydraulic charging and discharging device 33, the structure and cost are simpler, wherein in this embodiment, in order to ensure that the end of the connecting post 3152 can keep expanding outward, the hinge mode between the two constituent rods is elastic hinge, so as to keep the two constituent rods in the expanding state when contracting, but the elastic force of the elastic hinge of this embodiment is smaller, only preliminary guidance is needed, so as not to affect the whole operation of the connecting post 3152, wherein the structure of the connecting post 3152 in this embodiment is similar to the existing buffer structure, that is, in the process of slowly descending the road plate 3 with the supporting post 31, the connecting post 3152 can expand and contract along with the sliding of the sliding post 314, so that the length of the finally presented supporting post 31 is adapted to the external ground, and when a person walks on the road plate 3, a momentarily larger pressure can be generated due to the gravity of the person, therefore, the connecting post 3152 cannot be extended or retracted, and the constituent rods on the latching post 3151 are driven to expand outward and further latched into the latching groove 3141, thereby achieving the effect of locking the sliding post 314 and the fixing post 313.
In summary, the road construction fence of the present embodiment adopts the combined action of the main switch 51, the sub switch 52, the turnover device 4 and the road plate 3, so as to realize a temporary road structure capable of being assembled and disassembled, and thus, it can be ensured that the road has a certain traffic capacity when not being constructed.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims (6)

1. The utility model provides a road construction rail which characterized in that: comprises a fence base (1) and a fence body (2) which can be installed on the fence base (1), wherein a circuit board (3) is arranged on one side of the fence body (2), the lower side edge of the circuit board (3) is hinged with the fence base (1) so as to be arranged on the fence base (1) in a vertically-overturning manner, a through hole (21) is formed in the fence body (2), the circuit board (3) covers the through hole (21) when upwards overturned and attached to the fence body (2), the circuit board forms a road when downwards overturned and simultaneously opens the through hole (21), a turnover device (4) is arranged on the fence base (1), a trigger switch (5) is arranged on the turnover device (4), the trigger switch (5) comprises a main switch (51) and a secondary switch (52), the main switch (51) and the secondary switch (52) are both connected with the turnover device (4), and only when the main switch (51) is opened, the secondary switch (52) can open the starting turnover device (4) so as to drive the road board (3) to turn downwards to form a road.
2. The roadway construction fence of claim 1, wherein: the overturning device (4) comprises an overturning motor (41), a controller (42), an overturning gear (43) and an overturning shaft (44), the turnover shaft (44) is rotatably arranged on the fence base (1), the turnover gear (43) is coaxially sleeved on the turnover shaft (44), the lower side edge of the circuit board (3) is fixed on the side surface of the turnover shaft (44), the body of the turnover motor (41) is fixed on the position of the fence base (1) close to the turnover gear (43), a rotating shaft is coaxially sleeved with a worm (45), the worm (45) is meshed with a turnover gear (43), the controller (42) is fixed on the body of a turnover motor (41), and is connected with the turnover motor (41) to control the rotation of the turnover motor (41), and the main switch (51) and the secondary switch (52) are both connected with the controller (42) to output signals to the controller (42).
3. A road construction fence according to claim 1 or 2, wherein: one side of the road plate (3) back to the fence body (1) is provided with a plurality of supporting columns (31), and one end of each supporting column (31) back to the road plate (3) is provided with a supporting disc (32).
4. The roadway construction fence of claim 3, wherein: the supporting column (31) comprises a fixing column (311) and a telescopic column (312), one end of the fixing column (311) is fixed on the circuit board (3), the supporting plate (32) is fixed at one end of the telescopic column (312), one end, opposite to the supporting plate (32), of the telescopic column (312) is coaxially arranged on the fixing column (311) in a sliding mode in a penetrating mode, a hydraulic charging and discharging device (33) is arranged at the center of the circuit board (3), a connecting pipe is arranged on the side face of the fixing column (311), one end of the connecting pipe is communicated with the inside of the fixing column (311), and the other end of the connecting pipe is connected with the hydraulic charging and discharging device (33) so that the sliding degree of the telescopic column (312) can be regulated and controlled through.
5. The roadway construction fence of claim 4, wherein: the hydraulic charging and discharging device (33) comprises a liquid storage tank (331), a hydraulic pump (332) and a detection camera (333), wherein the hydraulic pump (332) is arranged on the liquid storage tank (331) and is connected with a connecting pipe so as to extract liquid in the liquid storage tank (331) and input the liquid into the connecting pipe, and the detection camera (333) is connected with the hydraulic pump (332) so as to detect the shape of the external ground and then input a signal into the hydraulic pump (332).
6. The roadway construction fence of claim 3, wherein: the supporting column (31) comprises a fixed column (313) and a sliding column (314), one end of the fixed column (313) is fixed on the circuit board (3), the supporting disc (32) is fixed on the sliding column (314), one end of the sliding column (314), which faces away from the supporting disc (32), can be arranged in the fixed column (313) in a sliding manner, a lock column (315) is arranged in the fixed column (313) in a penetrating manner, one end of the lock column (315) is fixed on the end part of the fixed column (313), the other end of the lock column (315) penetrates through the circle center of the supporting disc (32) after penetrating through the fixed column (313) and the sliding column (314), the lock column (315) comprises a clamping column (3151) and two connecting columns (3152), two ends of the clamping column (3151) are coaxially fixed at the end parts of the two connecting columns (3152) respectively, one end of the two clamping columns (3152), which faces away from the clamping column (3151), is connected with the supporting disc (32), the clamping column (3151) comprises two end columns and a plurality of rods connected with the two connecting, the plurality of the forming rods are formed by hinging one ends of the two rods with each other, the other ends of the forming rods are hinged to the two end columns respectively, the end faces of the end columns are provided with clamping columns (3152) in a circumferential distribution mode, a plurality of clamping grooves (3141) are formed in the inner wall of the sliding column (314) relative to the clamping columns (3152), when the end portions of the connecting columns (3152) are abutted to the outside ground and the connecting columns (3152) slide towards the clamping columns (3152), the clamping columns (3152) are opened, and the hinged end portions of the forming rods are embedded into the clamping grooves (3141).
CN202010914580.0A 2020-09-03 2020-09-03 Road construction fence Active CN112031521B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010914580.0A CN112031521B (en) 2020-09-03 2020-09-03 Road construction fence

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010914580.0A CN112031521B (en) 2020-09-03 2020-09-03 Road construction fence

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CN112031521A true CN112031521A (en) 2020-12-04
CN112031521B CN112031521B (en) 2022-02-01

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117489203A (en) * 2023-12-25 2024-02-02 河北首科铁路器材有限公司 Multifunctional intelligent limiter

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103126813A (en) * 2013-02-05 2013-06-05 孙鸿涛 Medical stretcher suitable for outdoor medical rescue
CN207761415U (en) * 2017-12-30 2018-08-24 嘉兴东润建设有限公司 A kind of road construction protective fence
CN208380276U (en) * 2018-06-26 2019-01-15 中国建筑第七工程局有限公司 A kind of tool protective fence
CN110158512A (en) * 2019-06-11 2019-08-23 周国英 Road construction fence
US10513389B1 (en) * 2013-03-08 2019-12-24 Newpark Mats & Integrated Services Llc Methods of preventing liquids from leaking off of a support surface
CN211048848U (en) * 2019-11-14 2020-07-21 赵晶 Adjustable wall map device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103126813A (en) * 2013-02-05 2013-06-05 孙鸿涛 Medical stretcher suitable for outdoor medical rescue
US10513389B1 (en) * 2013-03-08 2019-12-24 Newpark Mats & Integrated Services Llc Methods of preventing liquids from leaking off of a support surface
CN207761415U (en) * 2017-12-30 2018-08-24 嘉兴东润建设有限公司 A kind of road construction protective fence
CN208380276U (en) * 2018-06-26 2019-01-15 中国建筑第七工程局有限公司 A kind of tool protective fence
CN110158512A (en) * 2019-06-11 2019-08-23 周国英 Road construction fence
CN211048848U (en) * 2019-11-14 2020-07-21 赵晶 Adjustable wall map device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117489203A (en) * 2023-12-25 2024-02-02 河北首科铁路器材有限公司 Multifunctional intelligent limiter
CN117489203B (en) * 2023-12-25 2024-03-08 河北首科铁路器材有限公司 Multifunctional intelligent limiter

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