CN109930629A - A kind of precast assembling concrete manhole formwork for placing - Google Patents
A kind of precast assembling concrete manhole formwork for placing Download PDFInfo
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- CN109930629A CN109930629A CN201910246328.4A CN201910246328A CN109930629A CN 109930629 A CN109930629 A CN 109930629A CN 201910246328 A CN201910246328 A CN 201910246328A CN 109930629 A CN109930629 A CN 109930629A
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- external mold
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- pedestal
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- 238000009415 formwork Methods 0.000 title claims abstract description 18
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 47
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 238000000465 moulding Methods 0.000 claims abstract description 9
- 230000013011 mating Effects 0.000 claims description 13
- 238000009826 distribution Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 2
- 230000006872 improvement Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 125000003003 spiro group Chemical group 0.000 description 6
- 238000009434 installation Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Abstract
The present invention relates to a kind of precast assembling concrete manhole formwork for placing, including supporting mechanism, the supporting mechanism includes pedestal；External mold pipe；Internal mold pipe；Plugging plate, the plugging plate are installed on the gap location between the external mold pipe, the internal mold pipe, and the plugging plate assembly connection is in the inner wall of the external mold pipe；The pedestal, the external mold pipe, the internal mold pipe and the plugging plate collectively constitute die main body, die main body is to be integrally formed bottom plate and well room, the pedestal is to pouring molding bottom plate, the external mold pipe, the internal mold pipe are to pouring molding well room, limbers of the plugging plate to output well room；The precast assembling concrete manhole formwork for placing bottom plate and well room are disposably integral prefabricated, not only can effectively solve leakage problems, moreover it is possible to greatly improve the globality and rigidity of well room.
Description
Technical field
The present invention relates to a kind of precast assembling concrete manhole formwork for placing, belong to technical field of concrete.
Background technique
Precast assembling concrete manhole is mainly made of well lid, well room, bottom plate three parts, and it is high if desired to change well room
Degree can increase adjusting ring with the later period；Well room mainly drives concrete in mold internal vibration in processing by core mould vibrating machine
Molding.
Its bottom plate of current precast assembling concrete manhole and well room be individually it is prefabricated, construction when, need
The two is coupled, is operated relatively elaborate, and sealing performance is not good for bottom plate and well room seam crossing, is easy to appear
Leakage.
Summary of the invention
The present invention pours mould in view of the deficienciess of the prior art, providing a kind of precast assembling concrete manhole
Plate, specific technical solution are as follows:
A kind of precast assembling concrete manhole formwork for placing, including supporting mechanism, the supporting mechanism include pedestal,
The pedestal is assembled by the first support base that structure is identical and is oppositely arranged, the second support base, and the inside of the pedestal is
Cavity structure, the surface of the pedestal are provided with feed inlet, bottom surface closing；External mold pipe, the external mold pipe are assemblied in the pedestal top
Face, the external mold pipe are installed on the outer edge of the feed inlet；Internal mold pipe, the internal mold pipe interval are installed on the external mold pipe
Inside midline, the bottom end of the internal mold pipe is concordant with the bottom end of the external mold pipe；Between the internal mold pipe, the external mold pipe
Gap be connected to the chassis interior；Plugging plate, between the plugging plate is installed between the external mold pipe, the internal mold pipe
At gap, the plugging plate assembly connection is in the inner wall of the external mold pipe；The pedestal, the external mold pipe, the internal mold pipe and
The plugging plate collectively constitutes die main body, and die main body is built up to be integrally formed bottom plate and well room, the pedestal to pour
Type bottom plate, the external mold pipe, the internal mold pipe are to pouring molding well room, limbers of the plugging plate to output well room.
As an improvement of the above technical solution, first support base, second support base are semicircle shape, and described
One support base, second support base two sidewalls be vertically equipped with mounting plate, fixed between the mounting plate by screw.
As an improvement of the above technical solution, the surface of the pedestal is provided with the mounting hole of annular array distribution, the bottom
The face surface wall of seat is provided with the mating groove of annular, and the mating groove is located at the outside of the feed inlet.
As an improvement of the above technical solution, the bottom outer wall of the external mold pipe is equipped with the limit plate of annular array distribution,
It being connected by screw between the limit plate and the mounting hole, the plane perpendicular of the external mold pipe is equipped with cricoid matching board,
The matching board is embedded in the mating groove, and the outer wall of the external mold pipe is provided with cricoid preformed hole, the preformed hole to
The outer wall top of the fixed plugging plate, the external mold pipe is equipped with platform sling.
As an improvement of the above technical solution, the outer wall of the plugging plate and inner wall are arc surfaced, the plugging plate with
The external mold pipe, the internal mold pipe fit closely, and the internal symmetry of the plugging plate is provided with connecting hole, the connecting hole with it is described
It is connected by screw between preformed hole.
As an improvement of the above technical solution, internal model washer, multiple inner die pads are socketed at the top of the internal mold pipe
It is mutually socketed between circle, height of the internal model washer to increase the internal mold pipe.
As an improvement of the above technical solution, external mold washer, multiple outer die pads are socketed at the top of the external mold pipe
It is mutually socketed between circle, height of the external mold washer to increase the external mold pipe.
As an improvement of the above technical solution, the inner wall of the internal mold pipe is vertically equipped with upending frame, in the upending frame
Portion is equipped with hoisting ring, and the hoisting ring and the internal mold pipe are located at same midline, the hoisting ring, the platform sling and lifting machine
Structure connection, the derricking gear is to drive the internal mold pipe, external mold pipe lifting.
As an improvement of the above technical solution, the derricking gear includes fixed plate, first hoist and second hoist,
The second hoist is set at the bottom edge of the fixed plate, and the second hoist is connect with the platform sling, and described the
One hoist engine is set at the center of the fixed plate, and the first hoist connects hoisting ring.
As an improvement of the above technical solution, between the internal mold pipe and the external mold pipe, the inside of the pedestal is filled out
Filled with framework of steel reinforcement.
Beneficial effects of the present invention: bottom plate and well room disposable whole can be realized by internal mold pipe, external mold pipe and pedestal
Body is prefabricated, not only can effectively solve leakage problems, moreover it is possible to greatly improve the globality and rigidity of well room, improve site operation effect
Rate；The internal model washer of suitable number, external mold washer can be selected according to the well room height of required processing, working height can be adjusted freely
Section, it is easy to operate；Preformed hole offers multiple, can be mounted on plugging plate according to the discharge outlet position and number of well room
Suitable position, it is applied widely.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of precast assembling concrete manhole formwork for placing shown in the present invention；
Fig. 2 is supporting mechanism structural schematic diagram shown in the present invention；
Fig. 3 is enlarged structure schematic diagram at A shown in the present invention；
Fig. 4 is enlarged structure schematic diagram at B shown in the present invention；
Fig. 5 is internal mold pipe, external mold pipe and plugging plate attachment structure schematic diagram shown in the present invention.
Appended drawing reference: 1, supporting mechanism, 11, pedestal, the 111, first support base, the 112, second support base, 12, feed inlet,
13, mating groove, 14, mounting plate, 15, mounting hole, 2, external mold pipe, 21, limit plate, 22, platform sling, 23, preformed hole, 24, matching board,
3, internal mold pipe, 31, upending frame, 311, hoisting ring, 4, plugging plate, 41, connecting hole, 5, internal model washer, 6, external mold washer, 7, lifting
Mechanism, 71, fixed plate, 72, first hoist, 73, second hoist.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
As shown in FIG. 1, FIG. 1 is the structural representations of precast assembling concrete manhole formwork for placing shown in the present invention
Figure；
Supporting mechanism 1 includes pedestal 11, and pedestal 11 is assembled by the first support base 111 and the second support base 112, and first
Structure is identical between support base 111 and the second support base 112, and the inside of pedestal 11 is cavity structure, and pedestal 11 is to pour shape
At the bottom plate of inspection shaft；
The top of pedestal 11 is equipped with external mold pipe 2, and the bottom outer wall of external mold pipe 2 sets that there are four limit plate 21, limit plates 21
In triangular shape, fixed between limit plate 21 and pedestal 11 by screw；External mold pipe 2 is to the shaped outer wall as well room；
The top of external mold pipe 2 is plugged with external mold washer 6, can also be mutually inserted between external mold washer 6, external mold washer 6 it is straight
Diameter is identical as external mold pipe 2, the well room height that can be poured as needed and select required 6 quantity of external mold washer, thus realize one
A mold pours the inspection shaft of sizes, easy to operate；
The inside midline of external mold pipe 2 is equipped with internal mold pipe 3, between the two interval setting, and the distance at interval is well room
The bottom end of wall thickness, internal mold pipe 3 is concordant with the bottom end of external mold pipe 2, and internal mold pipe 3 is vacantly placed in the top of pedestal 11, internal mold pipe 3 and outer
Be connected to inside gap and pedestal 11 between mould pipe 2, well room can between internal mold pipe 3 and external mold pipe 2 pouring molding, and sand
Slurry can be also flowed into pedestal 11, so that bottom plate can also be integrally formed；
The top of internal mold pipe 3 can also be socketed with multiple internal model washers 5, to meet the processing needs of different height well room；
Gap filling between internal mold pipe 3 and external mold pipe 2 is equipped with plugging plate 4, and plugging plate 4 is to constitute the logical of well room
Water hole, installation personnel can select suitable installation site according to the required water flowing hole site opened up, can also be according to limbers size
The plugging plate 4 for selecting suitable diameter, so that the well room processed is flexible and changeable；
The top exterior walls of exterior sheathing 2 are equipped with platform sling 22, and platform sling 22 connects derricking gear 7, derricking gear 7 include fix 71,
First hoist 72 and second hoist 73, second hoist 73 connect platform sling 22, and second hoist 73 is to drive external mold
2 elevating movement of plate, second hoist 73 are set at the bottom edge of the fixed plate 71, and first hoist 72 is set to the fixation
At the center of plate 71, first hoist 72 realizes demoulding, molding to drive 3 elevating movement of inner template；Hoist engine is illustrative
The hoist engine of Nantong Kai Ye Machinery Co., Ltd. production is selected, support circuit and control circuit are provided by producer；
As shown in Fig. 2, Fig. 2 is supporting mechanism structural schematic diagram shown in the present invention；
The surface middle part of pedestal 11 is provided with the feed inlet 12 of through-hole structure, and the periphery of feed inlet 12 offers mating groove 13,
Mating groove 13 is set to the surface of pedestal 11, sets that there are four mounting hole 15, mounting hole 15 and limit plates at the marginal surface of pedestal 11
21 pass through screw assembly connection；
Feed inlet 12, mating groove 13 are divided into two, and the first support base 111, the second support base 112 respectively account for half, and two
Person's assembly can form complete feed inlet 12, mating groove 13；First support base 111, the two sidewalls of the second support base 112 are vertical
It is directly equipped with mounting plate 14, the mounting plate 14 of the first support base 111, the second support base 112, which is connected by screw to, can complete bottom
The assembling of seat 11.
As shown in figure 3, Fig. 3 is enlarged structure schematic diagram at A shown in the present invention；
The plane perpendicular of external mold pipe 3 is equipped with cricoid matching board 24, and matching board 24 is inserted into mating groove 13 and can improve
Connective stability and sealing performance；
It is connected by screw between limit plate 21 and mounting hole 15.
As shown in figure 4, Fig. 4 is enlarged structure schematic diagram at B shown in the present invention；
The outer wall of external mold pipe 2 is provided with preformed hole 23, and the inside of plugging plate 4 offers connecting hole 41, blocks when needing to fix
When plate 4, connecting hole 41 need to be only aligned with the preformed hole 23 of suitable position, then screw on screw from outside.
As shown in figure 5, Fig. 5 is internal mold pipe, external mold pipe and plugging plate attachment structure schematic diagram shown in the present invention；
The inner and outer wall of plugging plate 4 is globoidal structure, and the middle part section of plugging plate 4 is circle；
23 circular array of preformed hole distribution, connect plugging plate 4 preformed hole 23 inside run through long spiro nail, long spiro nail to
Extend into connecting hole 41 and be fixed, and the preformed hole 23 of not connected plugging plate 4 is internally connected with short screw, short screw to
The preformed hole 23 not used is blocked, long spiro nail, short screw are screwed into external mold pipe 2 from outside；Between preformed hole 23 away from
From in 35-55mm；To realize that the installation site of plugging plate 4 is more various, the prepared well room type come out is also more；It solves
The problem of it is single that traditional template reserves hole site, restricted application；
The inside top of inner template 3 is equipped with criss-cross upending frame 31, is equipped with hoisting ring 311 at the center of upending frame 31,
Hoisting ring 311 is connect with first hoist 72；
Internal mold pipe 3 is drawn by 73 vertical direction of second hoist, and each plugging plate 4 carries out cross spacing to internal mold pipe 3；Outside
The inner wall of mould pipe 2 matches with the inner wall of feed inlet 12, and junction is plane.
The present invention is in the specific implementation:
Assembly prepares: the steel mesh being welded as a whole is laid inside pedestal 11；According to the well room drainage hole of required processing
Position and size select the plugging plate 4 of suitable preformed hole 23 and suitable size, and plugging plate 4 is separately formed prefabricated component,
The short screw of script at suitable position is removed, is then aligned connecting hole 41 with suitable preformed hole 23, will be sealed by long spiro nail
Closure plate 4 is fixed on the inner wall of external mold pipe 2, and long spiro nail is through preformed hole 23 and extend into connecting hole 41；Same method is completed
The assembly of each plugging plate 4；
It completes mold assembly: pedestal 11 is placed in core mould vibrating equipment, portal frame drives fixed plate 71 to be moved to pedestal
11 surface, first hoist 73 plays internal mold pipe 3, second hoist 73 plays external mold pipe 2, and subsequent second hoist 73 is put
Lower exterior sheathing 73, so that matching board 24 is inserted into mating groove 13, mounting hole 15 is aligned with limit plate 21, and then worker passes through spiral shell
Limit plate 21 is connect by nail with mounting hole 15, realizes the connection of external mold pipe 2 and pedestal 11；In subsequent first winding motor 72 is put down
Mould pipe 3, internal mold pipe 3 is moved down along the middle line of external mold pipe 2, while moving down, due between the width and interior external mold of plugging plate 4
Spacing it is identical, the outer wall of internal mold pipe 3 is bonded with the inner wall of plugging plate 4, when the bottom end of internal mold pipe 3 moves to and external mold pipe 2
Stop when bottom end is concordant, at this point, internal mold pipe 3 is vacantly placed at the feed inlet 12 of pedestal 11, internal mold pipe 3 is erected by second hoist 73
Histogram carries out cross spacing to internal mold pipe 3, internal mold pipe 3 is enabled to stablize placement to traction, each plugging plate 4；According to required
The well room height of processing selects the internal model washer 5 of suitable number, external mold washer 6, and is socketed on mould pipe；Reinforcing bar is inserted into interior
Between external mold pipe；
Pouring molding: concrete slurry is poured between internal mold pipe 3, external mold pipe 2 by conveyer belt, and concrete is stemness coagulation
Soil, and with dry construction, concrete flows downward along the gap between interior external mold pipe, and enters pedestal by feed inlet 12
In 11, concrete first fills full pedestal 11 and forms well room bottom plate, then proceedes to accumulate gradually well room upwards, and plugging plate 4 can make
The region will not be filled by obtaining concrete, and then eventually form well room limbers；
Demoulding: after the completion of vibration preparation, second hoist 73 drives external mold pipe 2 to move upwards, and can drive entire mould
Tool and molded part leave bobbing machine, and then mold is placed on demoulding region by portal frame, first dismantle pedestal 11, back out support base
Mounting plate 14 on screw then back out mounting hole 15 and limit so that the first support base 111 is separated with the second support base 112
The attachment screw of position plate 21, backs out long spiro nail, so that plugging plate 4 is separated with external mold pipe 2, and plugging plate 4 still remains in well room
Interior, second hoist 73 pulls up the external mold pipe 2 of certain altitude, so that matching board 24 is separated with mating groove 13, then worker
The first support base 111, the second support base 112 are removed, so that bottom plate exposure, and a large amount of air can also enter external mold pipe 2
It is interior, so that the air pressure inside external mold pipe 2 rises, internal and external pressure difference is reduced, avoids external pressure is excessive from causing separation difficult；
Then first hoist 72, second hoist 73 move synchronously, and synchronize and mention external mold pipe 2 and internal mold pipe 3, so that 2 He of external mold pipe
Internal mold pipe 3 is separated with well room, realizes demoulding, and last integrally formed bottom plate and well room can be isolated, and worker takes from well room
Under each plugging plate 4.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of precast assembling concrete manhole formwork for placing characterized by comprising
Supporting mechanism (1), the supporting mechanism (1) include pedestal (11), and the pedestal (11) is identical by structure and is oppositely arranged
The first support base (111), the second support base (112) be assembled, the inside of the pedestal (11) is cavity structure, the bottom
The surface of seat (11) is provided with feed inlet (12), bottom surface closing；
External mold pipe (2), the external mold pipe (2) are assemblied in the pedestal (11) top surface, and the external mold pipe (2) is installed on the charging
The outer edge of mouth (12)；
Internal mold pipe (3), internal mold pipe (3) interval are installed on the inside midline of the external mold pipe (2), the internal mold pipe (3)
Bottom end it is concordant with the bottom end of the external mold pipe (2), gap between the internal mold pipe (3), the external mold pipe (2) and the bottom
Connection inside seat (11)；
Plugging plate (4), the plugging plate (4) is installed on the gap location between the external mold pipe (2), the internal mold pipe (3), described
Plugging plate (4) assembly connection is in the inner wall of the external mold pipe (2)；The pedestal (11), the external mold pipe (2), the internal mold pipe
(3) and the plugging plate (4) collectively constitutes die main body, and die main body is to be integrally formed bottom plate and well room, the pedestal
(11) to pouring molding bottom plate, the external mold pipe (2), the internal mold pipe (3) are to pouring molding well room, the plugging plate
(4) to output the limbers of well room.
2. a kind of precast assembling concrete manhole formwork for placing according to claim 1, it is characterised in that: described
One support base (111), second support base (112) are semicircle shape, first support base (111), second support
The two sidewalls of seat (112) are vertically equipped with mounting plate (14), are fixed between the mounting plate (14) by screw.
3. a kind of precast assembling concrete manhole formwork for placing according to claim 2, it is characterised in that: the bottom
The surface of seat (11) is provided with the mounting hole (15) of annular array distribution, and the face surface wall of the pedestal (11) is provided with the cooperation of annular
Slot (13), the mating groove (13) are located at the outside of the feed inlet (12).
4. a kind of precast assembling concrete manhole formwork for placing according to claim 3, it is characterised in that: described outer
The bottom outer wall of mould pipe (2) is equipped with the limit plate (21) of annular array distribution, the limit plate (21) and the mounting hole (15)
Between be connected by screw to, the plane perpendicular of the external mold pipe (2) is equipped with cricoid matching board (24), and the matching board (24) is embedding
Enter in the mating groove (13), the outer wall of the external mold pipe (2) is provided with cricoid preformed hole (23), and the preformed hole (23) is used
With the fixation plugging plate (4), platform sling (22) are equipped at the top of the outer wall of the external mold pipe (2).
5. a kind of precast assembling concrete manhole formwork for placing according to claim 4, it is characterised in that: the envelope
The outer wall and inner wall of closure plate (4) are arc surfaced, and the plugging plate (4) and the external mold pipe (2), the internal mold pipe (3) are closely
Fitting, the internal symmetry of the plugging plate (4) is provided with connecting hole (41), between the connecting hole (41) and the preformed hole (23)
It is connected by screw to.
6. a kind of precast assembling concrete manhole formwork for placing according to claim 5, it is characterised in that: in described
It is socketed with internal model washer (5), is mutually socketed between multiple internal model washers (5), the internal model washer at the top of mould pipe (3)
(5) to increase the height of the internal mold pipe (3).
7. a kind of precast assembling concrete manhole formwork for placing according to claim 5 or 6, it is characterised in that: institute
It states and is socketed at the top of external mold pipe (2) external mold washer (6), is mutually socketed between multiple external mold washers (6), the outer die pad
Enclose the height of (6) to increase the external mold pipe (2).
8. a kind of precast assembling concrete manhole formwork for placing according to claim 7, it is characterised in that: in described
The inner wall of mould pipe (3) is vertically equipped with upending frame (31), and the middle part of the upending frame (31) is equipped with hoisting ring (311), the lifting
Ring (311) and the internal mold pipe (3) are located at same midline, the hoisting ring (311), the platform sling (22) and derricking gear
(7) it connects, the derricking gear (7) is to drive the internal mold pipe (3), the external mold pipe (2) lifting.
9. a kind of precast assembling concrete manhole formwork for placing according to claim 8, it is characterised in that: described
Loop wheel machine structure (7) includes fixed plate (71), first hoist (72) and second hoist (73), and the second hoist (73) is set to
At the bottom edge of the fixed plate (71), the second hoist (73) connect with the platform sling (22), first elevator
Machine (72) is set at the center of the fixed plate (71), and the first hoist (72) connects hoisting ring (311).
10. a kind of precast assembling concrete manhole formwork for placing according to claim 8, it is characterised in that: described
Between internal mold pipe (2) and the external mold pipe (3), the inside of the pedestal (11) be filled with framework of steel reinforcement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910246328.4A CN109930629B (en) | 2019-03-28 | 2019-03-28 | Prefabricated assembled concrete inspection shaft pouring template |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910246328.4A CN109930629B (en) | 2019-03-28 | 2019-03-28 | Prefabricated assembled concrete inspection shaft pouring template |
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| Publication Number | Publication Date |
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| CN109930629A true CN109930629A (en) | 2019-06-25 |
| CN109930629B CN109930629B (en) | 2024-01-30 |
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| CN111364768A (en) * | 2020-03-06 | 2020-07-03 | 南宁腾宁商品混凝土有限公司 | Concrete pumping anti-blocking method and device |
| CN112942430A (en) * | 2021-01-29 | 2021-06-11 | 江西省八达电杆制造有限公司 | Prefabricated cable inspection shaft bottom seat and preparation frock thereof |
| CN114030074A (en) * | 2021-11-08 | 2022-02-11 | 宣城市政建材有限公司 | Processing method of concrete prefabricated inspection well |
| CN114607022A (en) * | 2022-03-19 | 2022-06-10 | 临沂市政集团有限公司 | Movable prefabricated inspection shaft construction device |
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| CN112942430A (en) * | 2021-01-29 | 2021-06-11 | 江西省八达电杆制造有限公司 | Prefabricated cable inspection shaft bottom seat and preparation frock thereof |
| CN114030074A (en) * | 2021-11-08 | 2022-02-11 | 宣城市政建材有限公司 | Processing method of concrete prefabricated inspection well |
| CN114607022A (en) * | 2022-03-19 | 2022-06-10 | 临沂市政集团有限公司 | Movable prefabricated inspection shaft construction device |
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| CN109930629B (en) | 2024-01-30 |
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