CN214330507U - Tunnel construction escalator with quick disassembly function - Google Patents

Tunnel construction escalator with quick disassembly function Download PDF

Info

Publication number
CN214330507U
CN214330507U CN202022650244.8U CN202022650244U CN214330507U CN 214330507 U CN214330507 U CN 214330507U CN 202022650244 U CN202022650244 U CN 202022650244U CN 214330507 U CN214330507 U CN 214330507U
Authority
CN
China
Prior art keywords
tunnel construction
mounting
groove
fixing
pedal
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.)
Active
Application number
CN202022650244.8U
Other languages
Chinese (zh)
Inventor
彭家兰
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.)
Zhongzhan Construction Co ltd
Original Assignee
Individual
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.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202022650244.8U priority Critical patent/CN214330507U/en
Application granted granted Critical
Publication of CN214330507U publication Critical patent/CN214330507U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Ladders (AREA)

Abstract

The utility model discloses a tunnel construction escalator with a quick disassembly function, belonging to the technical field of tunnel construction and comprising a first pedal, a bottom plate, a second pedal and a push-pull rod; the utility model discloses in, through setting up first installed part, first footboard and connecting rod, it is foldable with the design of this staircase for the footboard, under fold condition, this staircase volume is less, convenient and fast enters into the inside of tunnel construction from the tunnel construction entrance to a cave, avoided the staircase to block easily at the entering-in process and blockked up, the problem that can not get into, the inside condition of tunnel construction that simultaneously can be based on, work through hydraulic cylinder, carry out size adjustment to the staircase, make things convenient for constructor's business turn over and the transportation of construction goods and materials, the fixed plate through setting slides on the bottom plate, when having avoided when staircase position needs to adjust the use, can not carry out high efficiency and carry out position control, can only be through dismantling, then install once more, adjust the position, and operation is complex, the problem of wasting time and energy.

Description

Tunnel construction escalator with quick disassembly function
Technical Field
The utility model belongs to the technical field of the tunnel construction, especially, relate to a staircase for tunnel construction with dismantle function fast.
Background
In mountainous areas, rivers, oceans, streets with dense buildings and other areas, due to the limitation of environmental conditions, if measures such as bridges, roads, railways and the like are built, the construction process is complex, the difficulty is high, the construction period is long, the cost is high, the measures are difficult to realize, in order to relieve the problem of inconvenience in transportation and travel of people, the problem of transportation and travel can be perfectly solved by building tunnels in soil layers below the streets with dense buildings and mountainous areas, rivers, oceans and the streets, the tunnels can enable the transportation to be more convenient, the people can rapidly pass through the tunnels regardless of walking, driving or riding trains, a large number of different construction problems can be encountered in the tunnel construction process, and under some conditions, the problems can be well solved by using the escalators for tunnel construction.
Because the tunnel is under construction, the tunnel entrance to a cave of seting up out is less, the inside construction space in tunnel is less, current staircase for tunnel construction is a whole staircase, can not adjust the size that changes the staircase when the volume is great, when getting into tunnel construction, it is very inconvenient, block up easily, when using in the tunnel, a large amount of spaces in the tunnel have been occupied, be unfavorable for constructor's business turn over and transportation of construction goods and materials, current staircase for tunnel construction is installed behind the tunnel construction place, can not carry out position control, move to another place of construction and use, when needing to adjust the place of construction, can only pass through the dismantlement, then install once more, come adjusting position, complex operation, waste time and energy, and current staircase for tunnel construction dismantlement process is comparatively troublesome, be unfavorable for the progress of tunnel construction.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: in order to solve the problems that the existing staircase for tunnel construction is a whole staircase, has larger volume and cannot adjust and change the size of the staircase, is extremely inconvenient to enter the tunnel construction and is easy to block, occupies a large amount of space in the tunnel when being used in the tunnel, is not beneficial to the entering and exiting of constructors and the transportation of construction materials, cannot adjust the position after being installed in a tunnel construction site, is moved to another construction site for use, can only be disassembled and then installed again to adjust the position when the position of the construction site needs to be adjusted, has complex operation, wastes time and labor, is troublesome in the disassembling process of the existing staircase for tunnel construction, and is not beneficial to the progress of tunnel construction, the escalator for tunnel construction with the quick disassembly function is provided.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an staircase for tunnel construction with quick dismantlement function, includes first footboard, bottom plate, second footboard and push-and-pull rod, the one end fixed mounting of first footboard has first installed part, the other end fixed mounting of first footboard has the second installed part, the axle center department of first installed part rotates through the pivot and installs the connecting rod, and the other end of connecting rod rotates through the pivot and installs the axle center department at the fourth installed part of third footboard one side installation, the axle center department of second installed part rotates through the pivot and installs first rotation piece, and fixed mounting has hydraulic cylinder on one side outer wall of first rotation piece, the one end fixed mounting of second footboard has the third installed part, and the axle center department of third installed part rotates through the pivot and installs the second rotation piece, and the one end fixed mounting of second rotation piece is in hydraulic cylinder's bottom.
As a further description of the above technical solution:
the mounting groove has been seted up on the lower surface of first footboard, rotates through rolling bearing on the inner wall of one side of mounting groove and installs the axis of rotation, and the rotation of the middle part of axis of rotation installs the telescopic link, the other end of telescopic link rotates to be installed in the mount pad of installation on the third footboard upper surface, logical groove has been seted up on the one end outer wall that the telescopic link is close to the mount pad.
As a further description of the above technical solution:
the fixed slot has been seted up to the bottom of the slide bar of one end installation in the telescopic link, and fixed mounting has fixed spring on one side inner wall of fixed slot, and fixed spring's the other end fixed mounting is on the outer wall of fixed block, and the fixed block is pegged graft at logical inslot.
As a further description of the above technical solution:
the lower surface of the second pedal is fixedly provided with a mounting plate, a first insertion groove and a second insertion groove are formed in the mounting plate, a connecting spring is fixedly mounted on the inner wall of one side of the second insertion groove, the other end of the connecting spring is fixedly mounted on the outer wall of one side of the fixed pin shaft, one end of the push-pull rod penetrates through the mounting plate and extends to the inner portion of the first insertion groove and is fixedly mounted on the outer wall of one side of the fixed pin shaft, and the connecting spring is sleeved outside the push-pull rod.
As a further description of the above technical solution:
the upper surface of the bottom plate is provided with a sliding groove, a sliding block is arranged inside the sliding groove in a sliding mode, a fixing piece is fixedly arranged on the upper surface of the sliding block, and the fixing piece is inserted into the first inserting groove in a inserting mode.
As a further description of the above technical solution:
the inner part of the bottom plate is provided with a threaded sleeve, a threaded column is arranged on the inner thread of the threaded sleeve, and a fixing plate is fixedly arranged at the other end of the threaded column.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. in the utility model, the first installation part, the first pedal and the connecting rod are arranged, compared with the prior tunnel construction escalator, the tunnel construction escalator is a whole escalator, the escalator is connected with the first pedal and other pedals through the connecting rod, the design of the escalator is a pedal folding type, under the folding state, the escalator has smaller volume, the escalator can conveniently and quickly enter the tunnel construction from the tunnel construction entrance, the problem that the escalator is easy to block and block in the entering process and cannot enter is avoided, meanwhile, the size of the escalator can be adjusted through the working of the hydraulic cylinder according to the internal conditions of the tunnel construction, the escalator is convenient for constructors to pass in and out and transport construction materials, the fixed plate arranged slides on the bottom plate, the situation that when the position of the escalator needs to be adjusted and used, the rapid and efficient position adjustment cannot be carried out, only the disassembly can be carried out, and the re-installation is carried out, the position is adjusted, the operation is complex, and time and labor are wasted.
2. The utility model discloses in, through setting up the push-and-pull rod, when the staircase gets into inside the tunnel construction, can be with staircase quickly separating, convenient transportation, when the staircase need be dismantled simultaneously, can dismantle the staircase separation through the pulling push-and-pull rod, through setting up the fixed plate, increased the area of contact on staircase and tunnel ground, improved the stability of staircase, avoided constructor during operation on the staircase, because the staircase slides, lead to constructor injured problem, improved the security.
Drawings
FIG. 1 is a partial sectional view of the front view of the present invention;
FIG. 2 is a schematic structural view of the first pedal and the connecting rod of the present invention after being opened;
FIG. 3 is an enlarged schematic view of the structure at A of the present invention;
fig. 4 is an enlarged schematic structural view of the position B of the present invention;
illustration of the drawings:
1. a first mounting member; 2. a first pedal; 3. a connecting rod; 4. a hydraulic cylinder; 5. a first rotating member; 6. a second mount; 7. a chute; 8. a slider; 9. a base plate; 10. mounting a plate; 11. a second pedal; 12. a fixing plate; 13. a threaded sleeve; 14. a threaded post; 15. a third mount; 16. a second rotating member; 17. a rotating shaft; 18. a telescopic rod; 19. mounting grooves; 20. a mounting seat; 21. fixing a pin shaft; 22. a fixing member; 23. a first insertion groove; 24. a second insertion groove; 25. a connecting spring; 26. a push-pull rod; 27. a fixed block; 28. a through groove; 29. fixing the spring; 30. fixing grooves; 31. a third pedal; 32. and a fourth mount.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a tunnel construction escalator with a quick disassembly function comprises a first pedal 2, a bottom plate 9, a second pedal 11 and a push-pull rod 26, wherein a first installation part 1 is fixedly installed at one end of the first pedal 2, a second installation part 6 is fixedly installed at the other end of the first pedal 2, a connecting rod 3 is rotatably installed at the axis of the first installation part 1 through a rotating shaft, the other end of the connecting rod 3 is rotatably installed at the axis of a fourth installation part 32 installed at one side of a third pedal 31 through the rotating shaft, a first rotating part 5 is rotatably installed at the axis of the second installation part 6 through the rotating shaft, a hydraulic cylinder 4 is fixedly installed on the outer wall of one side of the first rotating part 5, a third installation part 15 is fixedly installed at one end of the second pedal 11, a second rotating part 16 is rotatably installed at the axis of the third installation part 15 through the rotating shaft, one end of the second rotating part 16 is fixedly installed at the bottom of the hydraulic cylinder 4, the escalator is unfolded under the action of the cylinder rod of the hydraulic cylinder 4 by arranging the hydraulic cylinder 4, the cylinder rod of the hydraulic cylinder 4 extends out, the first rotating piece 5 and the second rotating piece 16 rotate, the second pedal 11 is fixed on the mounting plate 10, the second mounting piece 6 and the first pedal 2 connected with the first rotating piece 5 are moved by the first rotating piece 5, the first mounting piece 1 arranged on the other side of the first pedal 2 drives the connecting rod 3 arranged on the same rotating shaft to rotate by the first pedal 2, the fourth mounting piece 32 is driven to rotate, the third pedal 31 is driven to move, and the third pedal 31 moves to drive the rest pedals and the connecting rod 3 to be unfolded;
the lower surface of the first pedal 2 is provided with a mounting groove 19, the inner wall of one side of the mounting groove 19 is rotatably provided with a rotating shaft 17 through a rotating bearing, the middle part of the rotating shaft 17 is rotatably provided with a telescopic rod 18, the other end of the telescopic rod 18 is rotatably mounted in a mounting seat 20 mounted on the upper surface of a third pedal 31, the outer wall of one end of the telescopic rod 18 close to the mounting seat 20 is provided with a through groove 28, through the arrangement of the telescopic rod 18, the telescopic rod 18 which is rotatably mounted on the inner wall of the mounting groove 19 of the first pedal 2 and rotates through the rotating shaft 17 is extended, the sliding rod slides on the telescopic rod 18, when the cylinder rod of the hydraulic cylinder 4 stops extending, under the action of the elastic force of a fixing spring 29 mounted in a fixing groove 30 formed at the bottom end of the sliding rod, the fixing block 27 is clamped in the corresponding through groove 28 on the telescopic rod 18, and the telescopic rod is fixed, thereby fixing the two pedals adjacent to each other up and down and the connecting rod 3;
the bottom of a sliding rod installed at one end in the telescopic rod 18 is provided with a fixing groove 30, a fixing spring 29 is fixedly installed on the inner wall of one side of the fixing groove 30, the other end of the fixing spring 29 is fixedly installed on the outer wall of the fixing block 27, the fixing block 27 is inserted into the through groove 28, through the arrangement of the fixing spring 29, when the air cylinder rod of the hydraulic air cylinder 4 is folded, due to the special shape of the fixing block 27, the fixing block 27 enters the fixing groove 30 under the action of the elastic force of the fixing spring 29, the sliding rod is retracted into the telescopic rod 18, the pedal and the connecting rod 3 are folded, and meanwhile, the telescopic rod 18 rotates into the installation groove 19 through the rotating shaft 17 and is hidden and stored;
the lower surface of the second pedal 11 is fixedly provided with a mounting plate 10, a first insertion groove 23 and a second insertion groove 24 are formed in the mounting plate 10, a connecting spring 25 is fixedly mounted on the inner wall of one side of the second insertion groove 24, the other end of the connecting spring 25 is fixedly mounted on the outer wall of one side of the fixed pin shaft 21, one end of a push-pull rod 26 penetrates through the mounting plate 10 and extends to the inside of the first insertion groove 23 to be fixedly mounted on the outer wall of one side of the fixed pin shaft 21, the connecting spring 25 is sleeved outside the push-pull rod 26, and by pulling the push-pull rod 26, the push-pull rod 26 drives the fixed pin shaft 21 to move to one side of the second insertion groove 24 formed in the mounting plate 10 under the action of the elastic force of the connecting spring 25, so that the inside of the first insertion groove 23 is not blocked;
the upper surface of the bottom plate 9 is provided with a sliding chute 7, the inside of the sliding chute 7 is provided with a sliding block 8 in a sliding manner, the upper surface of the sliding block 8 is fixedly provided with a fixing part 22, the fixing part 22 is inserted into the first insertion groove 23, the mounting plate 10 is placed on the upper surface of the bottom plate 9 by arranging the sliding block 8, the fixing part 22 arranged above the sliding block 8 arranged in the sliding chute 7 arranged on the upper surface of the bottom plate 9 in a sliding manner is inserted into the first insertion groove 23, the push-pull rod 26 is loosened, the fixing pin shaft 21 is inserted into a through hole in the fixing part 22 under the tension of the connecting spring 25, the fixing part 22 is fixed, the mounting plate 10 is fixed above the sliding block 8, and the sliding block 8 is moved to a proper position;
the inside of bottom plate 9 is provided with thread bush 13, and the internal thread of thread bush 13 installs screw thread post 14, and the other end fixed mounting fixed plate 12 of screw thread post 14 through being provided with fixed plate 12, removes this device to the place that needs to use in the tunnel, and the universal wheel of the installation of PMKD 9 bottom rotates in screw bush 13 inside through screw thread post 14, moves down the fixed plate 12 of screw thread post 14 bottom installation to tunnel ground surface and closely laminates rather than, fixes bottom plate 9 on the tunnel ground.
The working principle is as follows: when in use, the device is moved to a place needing to be used in a tunnel, the universal wheel arranged at the bottom of the fixed bottom plate 9 rotates in the threaded sleeve 13 through the threaded column 14, the fixed plate 12 arranged at the bottom of the threaded column 14 moves downwards to the upper surface of a tunnel field to be tightly attached to the upper surface of the tunnel field, the bottom plate 9 is fixed on the tunnel field, the push-pull rod 26 is pulled, the push-pull rod 26 drives the fixed pin shaft 21 to move to one side of the second insertion groove 24 arranged in the mounting plate 10 under the action of the elastic force of the connecting spring 25, so that the first insertion groove 23 is not blocked, the mounting plate 10 is placed on the upper surface of the bottom plate 9, the fixing piece 22 arranged above the sliding block 8 arranged in the sliding groove 7 arranged on the upper surface of the bottom plate 9 is inserted in the first insertion groove 23, the fixing piece 26 is loosened, the fixed pin shaft 21 is inserted in the through hole in the first insertion groove 22 under the action of the pulling force of the connecting spring 25, the fixing part 22 is fixed, the mounting plate 10 is fixed above the sliding block 8, the movable sliding block 8 is adjusted to a proper position, the hydraulic cylinder 4 is opened, the escalator is unfolded under the action of the cylinder rod of the hydraulic cylinder 4, the cylinder rod of the hydraulic cylinder 4 extends out, the first rotating part 5 and the second rotating part 16 rotate, as the second pedal 11 is fixed on the mounting plate 10, the second mounting part 6 and the first pedal 2 connected with the second rotating part are moved through the first rotating part 5, the first mounting part 1 arranged at the other side of the first pedal 2 drives the connecting rod 3 arranged on the same rotating shaft to rotate, the fourth mounting part 32 is driven to rotate, the third pedal 31 is driven to move, the third pedal 31 moves to drive the rest pedals and the connecting rod 3 to expand, and simultaneously the telescopic rod 18 rotating by the rotating shaft 17 rotatably arranged on the inner wall of the mounting groove 19 formed on the first pedal 2 extends out, the slide bar slides on telescopic link 18, when hydraulic cylinder 4 cylinder pole stops to extend, under the effect of the fixed spring 29 elasticity of the installation in the fixed slot 30 that the slide bar was seted up at the bottom, with the logical groove 28 that corresponds of fixed block 27 joint on telescopic link 18, it is fixed with the telescopic link, thereby fix two adjacent pedals from top to bottom and connecting rod 3, when hydraulic cylinder 4 cylinder pole was packed up, because the special shape of fixed block 27, under the effect of fixed spring 29 elasticity, fixed block 27 gets into in the fixed slot 30, the slide bar is withdrawed in the telescopic link 18, telescopic link 18 rotated to mounting groove 19 through axis of rotation 17 when footboard and connecting rod 3 folded up, hide and accomodate.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. The utility model provides an staircase for tunnel construction with quick dismantlement function, includes first footboard (2), bottom plate (9), second footboard (11) and push-and-pull rod (26), its characterized in that: one end of the first pedal (2) is fixedly provided with a first mounting piece (1), the other end of the first pedal (2) is fixedly provided with a second mounting piece (6), the axle center of the first mounting part (1) is rotatably provided with a connecting rod (3) through a rotating shaft, the other end of the connecting rod (3) is rotatably arranged at the axle center of a fourth mounting part (32) arranged at one side of a third pedal (31) through the rotating shaft, a first rotating piece (5) is rotatably arranged at the axis of the second mounting piece (6) through a rotating shaft, a hydraulic cylinder (4) is fixedly arranged on the outer wall of one side of the first rotating piece (5), one end fixed mounting of second footboard (11) has third installed part (15), and the axle center department of third installed part (15) rotates through the pivot and installs second rotation piece (16), and the one end fixed mounting of second rotation piece (16) is in the bottom of hydraulic cylinder (4).
2. The escalator with the rapid dismounting function for tunnel construction according to claim 1, characterized in that: seted up mounting groove (19) on the lower surface of first footboard (2), rotated through rolling bearing on the one side inner wall of mounting groove (19) and installed axis of rotation (17), the rotation of the middle part of axis of rotation (17) installs telescopic link (18), the other end of telescopic link (18) is rotated and is installed in mount pad (20) of installation on third footboard (31) upper surface, logical groove (28) have been seted up on the one end outer wall that telescopic link (18) are close to mount pad (20).
3. The escalator with the rapid dismounting function for tunnel construction according to claim 2, characterized in that: the bottom of the sliding rod installed at one end in the telescopic rod (18) is provided with a fixing groove (30), a fixing spring (29) is fixedly installed on the inner wall of one side of the fixing groove (30), the other end of the fixing spring (29) is fixedly installed on the outer wall of the fixing block (27), and the fixing block (27) is inserted into the through groove (28).
4. The escalator with the rapid dismounting function for tunnel construction according to claim 1, characterized in that: the lower surface of the second pedal (11) is fixedly provided with a mounting plate (10), the mounting plate (10) is internally provided with a first insertion groove (23) and a second insertion groove (24), the inner wall of one side of the second insertion groove (24) is fixedly provided with a connecting spring (25), the other end of the connecting spring (25) is fixedly arranged on the outer wall of one side of the fixed pin shaft (21), one end of a push-pull rod (26) penetrates through the mounting plate (10) and extends to the inner part of the first insertion groove (23) to be fixedly arranged on the outer wall of one side of the fixed pin shaft (21), and the connecting spring (25) is sleeved outside the push-pull rod (26).
5. The escalator with the rapid dismounting function for tunnel construction according to claim 1, characterized in that: the upper surface of the bottom plate (9) is provided with a sliding groove (7), a sliding block (8) is arranged inside the sliding groove (7) in a sliding mode, a fixing piece (22) is fixedly arranged on the upper surface of the sliding block (8), and the fixing piece (22) is inserted into the first insertion groove (23).
6. The escalator with the rapid dismounting function for tunnel construction according to claim 1, characterized in that: the novel anti-theft bolt is characterized in that a threaded sleeve (13) is arranged inside the bottom plate (9), a threaded column (14) is installed on the inner thread of the threaded sleeve (13), and a fixing plate (12) is fixedly installed at the other end of the threaded column (14).
CN202022650244.8U 2020-11-16 2020-11-16 Tunnel construction escalator with quick disassembly function Active CN214330507U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022650244.8U CN214330507U (en) 2020-11-16 2020-11-16 Tunnel construction escalator with quick disassembly function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022650244.8U CN214330507U (en) 2020-11-16 2020-11-16 Tunnel construction escalator with quick disassembly function

Publications (1)

Publication Number Publication Date
CN214330507U true CN214330507U (en) 2021-10-01

Family

ID=77895489

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022650244.8U Active CN214330507U (en) 2020-11-16 2020-11-16 Tunnel construction escalator with quick disassembly function

Country Status (1)

Country Link
CN (1) CN214330507U (en)

Similar Documents

Publication Publication Date Title
CN205985952U (en) Overhead transmission line tool car
CN108775173B (en) Draw in formula parking stall in
CN214330507U (en) Tunnel construction escalator with quick disassembly function
CN207761664U (en) A kind of operation structure for complete-section tunnel boring machine small space
CN101845936B (en) Rotary type screen mechanism of electric telescopic door
CN107444524A (en) Shared bicycle stand
CN114045769B (en) Guardrail is prevented wearing by movable type that municipal administration highway engineering used
CN207513616U (en) Waterproof construction moveable arm group and the waterproof construction trolley comprising this arm group
CN105909171A (en) Double-arm crawler type shaft sinking drill carriage
CN206368684U (en) A kind of mine jumbo
CN215212720U (en) Portable guardrail convenient to fold and unfold
CN210238544U (en) Swing type integral cofferdam moving device
CN211172392U (en) Steel construction skirt house device that can stretch out and draw back automatically
CN209817604U (en) Convenient foldable fence used in road and bridge construction process
CN219315578U (en) Pavement landscape guardrail
CN216551719U (en) Highway stridees across formula road bridge construction rail device
CN220285481U (en) Movable fence for foundation pit trestle limb
CN108316761A (en) A kind of municipal works protective fence
CN219973000U (en) Road and bridge construction is with safe warning fence
CN219492312U (en) Supporting equipment for coal mining return tunnel
CN220503944U (en) Retaining wall reinforcing structure
CN220851304U (en) Water conservancy exploration mapping equipment
CN213292276U (en) Safety protection screen of urban rail transit platform
CN216615544U (en) Bridge reinforced structure
CN220184742U (en) Support frame for civil engineering design convenient to carry

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20230518

Address after: B8, Floor 1-2, No. 3 Beisen North Road, Qingyang District, Chengdu, Sichuan Province, 610000

Patentee after: Zhongzhan Construction Co.,Ltd.

Address before: 404300 No.5, Yiran Road, Wuyang Town, Zhongxian County, Chongqing

Patentee before: Peng Jialan

TR01 Transfer of patent right