CN207700226U - A kind of prefabricated well bore and segmented precast inspection well - Google Patents

A kind of prefabricated well bore and segmented precast inspection well Download PDF

Info

Publication number
CN207700226U
CN207700226U CN201721727927.0U CN201721727927U CN207700226U CN 207700226 U CN207700226 U CN 207700226U CN 201721727927 U CN201721727927 U CN 201721727927U CN 207700226 U CN207700226 U CN 207700226U
Authority
CN
China
Prior art keywords
well bore
well
prefabricated
connecting plate
buckle
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.)
Expired - Fee Related
Application number
CN201721727927.0U
Other languages
Chinese (zh)
Inventor
王祺
戴继涛
张具文
黄山
王强
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.)
Haiwei Engineering Construction Co Ltd of FHEC of CCCC
CCCC First Highway Engineering Co Ltd
Original Assignee
CCCC First Highway Engineering Co Ltd
Haiwei Engineering Construction Co Ltd of FHEC of CCCC
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 CCCC First Highway Engineering Co Ltd, Haiwei Engineering Construction Co Ltd of FHEC of CCCC filed Critical CCCC First Highway Engineering Co Ltd
Priority to CN201721727927.0U priority Critical patent/CN207700226U/en
Application granted granted Critical
Publication of CN207700226U publication Critical patent/CN207700226U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Road Paving Structures (AREA)

Abstract

The utility model is related to inspection shaft fields, in particular to a kind of prefabricated well bore and segmented precast inspection well.The utility model provides a kind of prefabricated well bore comprising the first well bore and the second well bore, distinguish it is prefabricated form, assembled when in use.Buckle when assembling on the second well bore is matched with the auxiliary section on the first well bore, so that the first well bore and the second well bore is coaxially disposed, for assembling inspection shaft.The prefabricated well bore assembling process is simple, and assembling speed is fast, and is not susceptible to displacement between the first well bore and the second well bore after assembling, and ensure that normal use.The utility model additionally provides a kind of segmented precast inspection well comprising well lid and above-mentioned prefabricated well bore.It is manufactured by being segmented, and is then coordinated by mechanical hoisting, while the cost-effective and construction period, obtains better prepattern, and reduces the case where external force deviates to influence to use caused by the segmented precast inspection well when pipeline backfills.

Description

A kind of prefabricated well bore and segmented precast inspection well
Technical field
The utility model is related to inspection shaft fields, in particular to a kind of prefabricated well bore and segmented precast inspection well.
Background technology
With the continuous development of economic society, fast-developing situation is also presented in urban municipal construction, and urban road is more repaiied It is more.In order to preferably accomplish energy-saving and emission-reduction, civilized construction, durability and environmental requirement for road project are increasingly Strictly.It is largely brick process structure, long construction period and complex process for inspection shaft used in present China, it is resistance to Long property is also bad, and this also allows the making of precast inspection well and installation to become more necessary.Pass through prefabricated reinforced concrete inspection Well effectively extends the service life of inspection shaft, reduces the repeated construction frequency of road, also eliminates unnecessary digging Road has ensured the quality that citizen pass through;Meanwhile quickly and easily mounting means also shortens its construction period well, drop Low traffic pressure.
In the prior art, inspection shaft has that card slot safeguard measure weakness is easily damaged, common inspection well construction In the process, inspection shaft card slot safeguard measure weakness may damage well bore card slot in transport process, thus to well Body leakproofness has an impact to cause the service life of inspection shaft to decline.
Utility model content
The purpose of the utility model is to provide a kind of prefabricated well bores comprising the first well bore and the second well bore, point It is not prefabricated to form, it is assembled when in use.Buckle when assembling on the second well bore is matched with the auxiliary section on the first well bore, The first well bore and the second well bore is set to be coaxially disposed, for assembling inspection shaft.The prefabricated well bore assembling process is simple, assembling speed Soon, and after assembling it is not susceptible to displacement between the first well bore and the second well bore, ensure that normal use.
Second purpose of the utility model is, provides a kind of segmented precast inspection well comprising well lid and Above-mentioned prefabricated well bore.It is manufactured by being segmented, and is then coordinated by mechanical hoisting, cost-effective and the construction period Meanwhile better prepattern is obtained, and reduce external force when pipeline backfills and deviated caused by the segmented precast inspection well The case where to influence to use.
What the embodiments of the present invention were realized in:
A kind of prefabricated well bore comprising:
First well bore, the first well bore peripheral surface are equipped with auxiliary section;
Second well bore, the second well bore peripheral surface are equipped with buckle;
Buckle have first state coordinate with auxiliary section and buckle and mating part from the second state;
First well bore is configured to when buckle is in first state, the first well bore and the coaxial arrangement of the second well bore.
The prefabricated well bore assembling process is simple, and assembling speed is fast, and is not easy between the first well bore and the second well bore after assembling It is subjected to displacement, ensure that normal use.
In a kind of embodiment of the utility model:
Buckle includes rotation section, operating lever, block and cooperation frame;Operating lever one end is connect with rotation section;Coordinate frame and turns One end connection of the dynamic portion far from operating lever;Block is configured to, when buckle is in first state, abut with rotation section.
In a kind of embodiment of the utility model:
It includes the first frame body, the second frame body and third frame body being sequentially connected end to end to coordinate frame;First frame body and third frame The one end of body far from the second frame body is connect with rotation section both sides respectively.
In a kind of embodiment of the utility model:
Auxiliary section includes circular-arc-shaped exterior contour;Auxiliary section extends to the direction far from the second well bore.
In a kind of embodiment of the utility model:
The first connecting plate is additionally provided on first well bore;Auxiliary section is connect by the first connecting plate with the first well bore;Second well It is additionally provided with the second connecting plate with it;The second connecting plate is snapped through to connect with the second well bore.
In a kind of embodiment of the utility model:
Second connecting plate is equipped with two end plates along the second well bore axial direction;Two end plates interval is arranged.
In a kind of embodiment of the utility model:
Several threaded holes are offered on first connecting plate and the second connecting plate.
In a kind of embodiment of the utility model:
Holding groove is offered at the top of first well bore;Holding groove is used to coordinate with well lid.
A kind of segmented precast inspection well comprising well lid, above-mentioned prefabricated well bore;
Well lid and the one end of the first well bore far from the second well bore are detachably connected;Second well bore radially on offer Through hole.
In a kind of embodiment of the utility model:
Segmented precast inspection well further includes bottom plate;Base plate thickness is 10cm;Bottom plate and the second well bore are far from the first well bore One end removably connect.
The technical solution of the utility model at least has following advantageous effect:
The utility model provides a kind of prefabricated well bore comprising the first well bore and the second well bore, distinguish it is prefabricated form, It is assembled when in use.Buckle when assembling on the second well bore is matched with the auxiliary section on the first well bore, makes the first well bore It is coaxially disposed with the second well bore, for assembling inspection shaft.The prefabricated well bore assembling process is simple, and assembling speed is fast, and after assembling It is not susceptible to displacement between first well bore and the second well bore, ensure that normal use.
The utility model additionally provides a kind of segmented precast inspection well comprising well lid and above-mentioned prefabricated well bore.Its It is manufactured by being segmented, is then coordinated by mechanical hoisting, while the cost-effective and construction period, obtained preferably Prepattern, and external force deviates feelings to influence to use caused by the segmented precast inspection well when reducing pipeline backfill Condition.
Description of the drawings
It, below will be to required use in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram of prefabricated well bore in the utility model embodiment 1;
Fig. 2 is the close-up schematic view at II in Fig. 1;
Fig. 3 is the structural schematic diagram of the first connecting plate and the second connecting plate in the utility model embodiment 1;
Fig. 4 is the structural schematic diagram of precast inspection well in the utility model embodiment 2.
In figure:The prefabricated well bores of 100-;The first well bores of 110-;The second well bores of 120-;The auxiliary sections 130-;140- is buckled;141- Rotation section;143- operating levers;145- blocks;147- coordinates frame;The first connecting plates of 151-;The second connecting plates of 153-;155- end plates; 157- threaded holes;200- precast inspection wells;210- well lids;221- through holes;230- bottom plates.
Specific implementation mode
It is new below in conjunction with this practicality to keep the purpose, technical scheme and advantage of the utility model embodiment clearer Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here described in attached drawing and The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiments of the present invention to providing in the accompanying drawings is not intended to limit requirement below The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model Embodiment, the every other embodiment that those of ordinary skill in the art are obtained without creative efforts, all Belong to the range of the utility model protection.
It should be noted that:Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.In addition, term " the One ", " second " etc. is only used for distinguishing description, is not understood to indicate or imply relative importance.
In the description of the utility model embodiment, it should be noted that the instructions such as term "inner", "outside", "upper" Orientation or positional relationship is to be based on the orientation or positional relationship shown in the drawings or when utility model product use usually puts The orientation or positional relationship put, is merely for convenience of describing the present invention and simplifying the description, rather than indicates or imply and is signified Device or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as to this practicality Novel limitation.
Embodiment 1
It is a kind of prefabricated well bore 100 provided in this embodiment with reference to figure 1, in figure comprising the first well bore 110 and the second well Body 120, distinguish it is prefabricated form, assembled when in use.Buckle 140 and the first well bore when assembling on the second well bore 120 Auxiliary section 130 on 110 matches, and so that the first well bore 110 and the second well bore 120 is coaxially disposed, for assembling inspection shaft.This is pre- 100 assembling process of well bore processed is simple, and assembling speed is fast, and is not susceptible between the first well bore 110 and the second well bore 120 after assembling Displacement ensure that normal use.
What the prefabricated well bore 100 in the present embodiment was formed by:
A kind of prefabricated well bore 100 includes the first well bore 110 and the second well bore 120, and 110 peripheral surface of the first well bore, which is equipped with, matches Conjunction portion 130,120 peripheral surface of the second well bore are equipped with buckle 140, which has the first shape for coordinating volume with auxiliary section 130 State and the second state detached with auxiliary section 130.
First well bore 110 is usually provided in 120 top of the second well bore, and the first well bore 110 is configured to when buckle 140 is in the When one state, the first well bore 110 and the coaxial arrangement of the second well bore 120.Utilize the buckle 140 and first on the second well bore 120 After auxiliary section 130 on well bore 110 is coordinated, the first well bore 110 and the second well bore 120 keep coaxial, so as to be completed Inspection well construction safety and meet job specfication.
With reference to figure 2, in the present embodiment, buckle 140 includes rotation section 141, operating lever 143, block 145 and cooperation frame 147, operating lever 143 controls the buckle 140 when constructing for staff, and 143 one end of operating lever connects with rotation section 141 It connects, cooperation frame 147 is connect with the one end of rotation section 141 far from operating lever 143, and operating lever 143 drives rotation section 141 along rotation section 141 axis rotate, while the auxiliary section 130 of cooperation frame 147 and the first well bore 110 being driven to coordinate.
Block 145 be configured to when buckle 140 in first state when, is abutted with rotation section 141, cooperation frame 147 and After auxiliary section 130 coordinates, limits rotation section 141 using block 145 and rotate backward, ensure the stability of cooperation.It needs to illustrate , above-mentioned buckle 140 can also be other structures, such as the fit form of torsional spring and holder.
Further, cooperation frame 147 includes end to end first frame body, the second frame body and third prosthese successively, and first Frame body and third frame body are vertical with the second frame body, the one end of the first frame body and third frame body far from the second frame body respectively with rotation section 141 both sides connect, and enable rotation section 141 that the first frame body and third frame body to be driven to rotate, while utilizing the second frame body and cooperation Portion 130 anchors.
In the present embodiment, the selection of rotation section 141 internal diameter is 2.5cm, the bearing that outer diameter is 5.2cm is put into steel ring, and 2.5cm steel pipes are passed through into bearing, the first frame body and third frame body are connect with steel pipe both ends.First frame body, the second frame body and third Frame body fortune selects the screw-thread steel of long 15cm, and by being welded to connect.
Auxiliary section 130 includes circular-arc-shaped exterior contour, and auxiliary section 130 extends to the direction far from the second well bore 120.Auxiliary section 130 in the present embodiment, can also be process by screw-thread steel, it should be noted that, should in other specific implementation modes Auxiliary section 130 can also be other structures, such as the reinforcing bar of L-type.
First well bore 110 and the second well bore 120 have cylindrical external outline, in order to ensure auxiliary section 130 and the first well bore 110 connection and the connection of buckle 140 and the second well bore 120, with reference to figure 3, in the present embodiment, on the first well bore 110 also Equipped with the first connecting plate 151, auxiliary section 130 is connect by the first connecting plate 151 with the first well bore 110.On second well bore 120 also Equipped with the second connecting plate 153, buckle 140 is connect by the second connecting plate 153 with the second well bore 120.
In the present embodiment, the first connecting plate 151 and the second connecting plate 153 are made of the steel plate of 1.5cm thickness, the second connection 153 size of plate is 35cm*25cm, and 151 size of the first connecting plate is 10cm*25cm.
Further, cheap second for the block 145 in the better fixed card buckle 140 on the second connecting plate 153 The two end plates 155 of 6cm*6cm*1cm, the setting of the interval of two end plates 155 are welded in version, block 145 is set to two end plates 155 Between.
In addition, to ensure the company of the first connecting plate 151, the second connecting plate 153 and the first well bore 110 and the second well bore 120 It connects, in the present embodiment, offers several threaded holes 157 on the first connecting plate 151 and the second connecting plate 153, pass through bolt Across the threaded hole 157, the first connecting plate 151 and the first well bore 110 and the second connecting plate 153 and the second well bore 120 is made to divide It does not connect.It should be noted that in his specific implementation mode, the first connecting plate 151 and the connection of the first well bore 110 and second Plate 153 can also use the modes such as welding to connect with the second well bore 120.
The one end of first well bore 110 far from the second well bore 120 is for installing well lid, in order to ensure well lid and the first well bore 110 cooperation offers holding groove at the top of the first well bore 110 in the present embodiment.It is realized and is stablized by the holding groove and well lid And the connection of sealing.
Prefabricated well bore 100 in the present embodiment, using on the buckle 140 and the first well bore 110 on the second well bore 120 Auxiliary section 130 matches, and so that the first well bore 110 and the second well bore 120 is coaxially disposed, for assembling inspection shaft.The prefabricated well bore 100 assembling process are simple, and assembling speed shortens the construction period soon, and effect is connected between the first well bore 110 and the second well bore 120 after assembling Fruit is good, is not susceptible to displacement.
Embodiment 2
Be a kind of segmented precast inspection well 200 provided in this embodiment with reference to figure 4, in figure comprising well lid 210 and A kind of prefabricated well bore 100 in embodiment 1.Prefabricated well bore 100 includes the first well bore 110 and the second well bore 120, the first well bore 110 peripheral surfaces are equipped with auxiliary section 130, and 120 peripheral surface of the second well bore is equipped with buckle 140, which has and auxiliary section The first state of 130 cooperation volumes and the second state detached with auxiliary section 130.First well bore 110 is usually provided in the second well bore 120 Top, the first well bore 110 are configured to when buckling 140 in first state, and the first well bore 110 and the second well bore 120 are coaxial Setting.After being coordinated using the auxiliary section 130 on the buckle 140 and the first well bore 110 on the second well bore 120, the first well Body 110 and the second well bore 120 keep coaxial, so as to the inspection well construction safety being completed and meet job specfication.It is main Purpose is for adjusting branch pipe access height, using it to meet the needs that part need to receive branch pipe inspection shaft
Well lid 210 is removably connect with the one end of the first well bore 110 far from the second well bore 120, and the second well bore 120 is used for Connect the main basis of drain header and inspection shaft model.In 120 upper edge of the second well bore, it radially offers through hole 221, access port size is reserved according to being actually needed on line, therefore.Well lid 210 can then adjust segmented precast inspection well 200 with Location superelevation of highway surface is installed, the balance on installation ground road surface and inspection shaft is carried out.
In assembling, using mechanical hoisting, cost is not only saved, but also improve efficiency, by above-mentioned prefabricated well bore 100 and well Lid 210 cooperatively forms segmented precast inspection well 200.
In the present embodiment, segmented precast inspection well 200 further includes bottom plate 230, which is 10cm, It is removably connect with the one end of the second well bore 120 far from the first well bore 110.Bottom plate 230 is primarily used in the present embodiment It is fixed, the function of support inspection shaft entirety.It should be noted that in his specific implementation mode, can be not provided with above-mentioned Bottom plate 230.
A kind of segmented precast inspection well 200 in the present embodiment is manufactured by being segmented, is then carried out by mechanical hoisting Cooperation, while the cost-effective and construction period, obtains better prepattern, and reduces external force pair when pipeline backfills The case where deviating to influence to use caused by the segmented precast inspection well 200.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.

Claims (10)

1. a kind of prefabricated well bore, which is characterized in that including:
First well bore, the first well bore peripheral surface are equipped with auxiliary section;
Second well bore, the second well bore peripheral surface are equipped with buckle;
It is described buckle have first state coordinate with the auxiliary section and it is described buckle and the mating part from the second shape State;
First well bore is configured to when the buckle is in first state, and the first well bore and second well bore are coaxially set It sets.
2. a kind of prefabricated well bore according to claim 1, it is characterised in that:
The buckle includes rotation section, operating lever, block and cooperation frame;Described operating lever one end is connect with the rotation section;Institute Cooperation frame is stated to connect with the one end of the rotation section far from operating lever;The block is configured to be in the first shape when the buckle When state, abutted with the rotation section.
3. a kind of prefabricated well bore according to claim 2, it is characterised in that:
The cooperation frame includes the first frame body, the second frame body and third frame body being sequentially connected end to end;First frame body and institute The one end of third frame body far from second frame body is stated to connect with the rotation section both sides respectively.
4. a kind of prefabricated well bore according to claim 2, it is characterised in that:
The auxiliary section includes circular-arc-shaped exterior contour;The auxiliary section extends to the direction far from second well bore.
5. a kind of prefabricated well bore according to claim 4, it is characterised in that:
It is additionally provided with the first connecting plate on first well bore;The auxiliary section passes through first connecting plate and first well bore Connection;It is additionally provided with the second connecting plate on second well bore;It is described to snap through second connecting plate and second well bore Connection.
6. a kind of prefabricated well bore according to claim 5, it is characterised in that:
Second connecting plate is equipped with two end plates along the second well bore axial direction;Two pieces of end plate interval settings.
7. a kind of prefabricated well bore according to claim 5, it is characterised in that:
Several threaded holes are offered on first connecting plate and second connecting plate.
8. a kind of prefabricated well bore according to claim 1, it is characterised in that:
Holding groove is offered at the top of first well bore;The holding groove is used to coordinate with well lid.
9. a kind of segmented precast inspection well, it is characterised in that:
The segmented precast inspection well includes the prefabricated well bore of any one in well lid, the claims 1-8;
The well lid and the one end of first well bore far from second well bore are detachably connected;Second well bore is along it Radially offer through hole.
10. a kind of segmented precast inspection well according to claim 9, it is characterised in that:
The segmented precast inspection well further includes bottom plate;The base plate thickness is 10cm;The bottom plate and second well bore One end far from first well bore removably connects.
CN201721727927.0U 2017-12-12 2017-12-12 A kind of prefabricated well bore and segmented precast inspection well Expired - Fee Related CN207700226U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721727927.0U CN207700226U (en) 2017-12-12 2017-12-12 A kind of prefabricated well bore and segmented precast inspection well

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721727927.0U CN207700226U (en) 2017-12-12 2017-12-12 A kind of prefabricated well bore and segmented precast inspection well

Publications (1)

Publication Number Publication Date
CN207700226U true CN207700226U (en) 2018-08-07

Family

ID=63025812

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721727927.0U Expired - Fee Related CN207700226U (en) 2017-12-12 2017-12-12 A kind of prefabricated well bore and segmented precast inspection well

Country Status (1)

Country Link
CN (1) CN207700226U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112431226A (en) * 2020-12-16 2021-03-02 齐嘉蕾 Assembled precast concrete inspection shaft

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112431226A (en) * 2020-12-16 2021-03-02 齐嘉蕾 Assembled precast concrete inspection shaft

Similar Documents

Publication Publication Date Title
CN102966100A (en) Tensioned spun concrete (TSC) and prestressed high-strength concrete (PHC) combined pile
CN106438212A (en) Bent and spliced type bucket-shaped tower barrel
CN203768946U (en) Assembled prefabricated comprehensive pipe rack
CN207700226U (en) A kind of prefabricated well bore and segmented precast inspection well
CN108005398A (en) A kind of warning rail for building easy to recycling dismounting
CN203755443U (en) Assembly integrated type overlapping frame structure
CN206667073U (en) Spliced rotation body support
CN203654767U (en) Rotating table, rotating tower, conveying pipe, pumping mechanism and cantilever crane type material distribution device
CN211922137U (en) Integrally-stressed prefabricated assembled panel
CN103104034B (en) End plate type H profile steel beam and rectangular conduit split bolt connected node
CN202945601U (en) Thin-wall steel tube centrifugal concrete (TSC) and prestress high concrete (PHC) combined pile
CN204418201U (en) Base station modularization prefabricated foundation
CN106836269A (en) Assembled fast-assembling basis
CN205742482U (en) A kind of novel prefabricated assembled rain sewage inspection well chute
CN214169345U (en) Rainwater and sewage inspection well supporting and lifting die
CN210289631U (en) Eccentric 3-piece set for hole drilling and reaming
CN209649038U (en) A kind of precast caisson die assembly
CN113958049A (en) Scissor fork type building steel frame and laminated slab connecting structure
CN208743556U (en) A kind of municipal construction angle bender
CN204098224U (en) Detachable concrete prefabricated wall plate structure house
CN218813831U (en) Box-type house foundation capable of being installed rapidly in turnover mode
CN201711694U (en) Stiffener ring assembly positioning device
CN216585961U (en) Clamping type roadbed box
CN220414294U (en) Foundation pit dewatering well pipe structure
CN214574101U (en) Lattice column connecting structure for tower crane foundation for building construction

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CP01 Change in the name or title of a patent holder
CP01 Change in the name or title of a patent holder

Address after: 100024 Zhoujiajing Shitong International Building, Guanzhuang, Chaoyang District, Beijing, 15-19 floors

Co-patentee after: HAIWEI ENGINEERING CONSTRUCTION CO LTD OF FIRST HIGHWAY ENGINEERING Co.,Ltd. OF CCCC

Patentee after: CHINA FIRST HIGHWAY ENGINEERING Co.,Ltd.

Address before: 100024 Zhoujiajing Shitong International Building, Guanzhuang, Chaoyang District, Beijing, 15-19 floors

Co-patentee before: HAIWEI ENGINEERING CONSTRUCTION CO LTD OF FIRST HIGHWAY ENGINEERING Co.,Ltd. OF CCCC

Patentee before: CCCC FIRST HIGHWAY ENGINEERING Co.,Ltd.

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180807