CN112832292A - Assembled inspection shaft - Google Patents

Assembled inspection shaft Download PDF

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Publication number
CN112832292A
CN112832292A CN202110013015.1A CN202110013015A CN112832292A CN 112832292 A CN112832292 A CN 112832292A CN 202110013015 A CN202110013015 A CN 202110013015A CN 112832292 A CN112832292 A CN 112832292A
Authority
CN
China
Prior art keywords
pipe
well body
sealing
telescopic
ring
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.)
Pending
Application number
CN202110013015.1A
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Chinese (zh)
Inventor
钱凌
涂善波
段遥捷
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.)
Suzhou Construction Engineering Group Co ltd
Original Assignee
Suzhou Construction Engineering Group Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Suzhou Construction Engineering Group Co ltd filed Critical Suzhou Construction Engineering Group Co ltd
Priority to CN202110013015.1A priority Critical patent/CN112832292A/en
Publication of CN112832292A publication Critical patent/CN112832292A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00Independent underground or underwater structures; Retaining walls
    • E02D29/12Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/121Manhole shafts; Other inspection or access chambers; Accessories therefor characterised by the connection between shaft elements, e.g. of rings forming said shaft
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00Independent underground or underwater structures; Retaining walls
    • E02D29/12Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/125Manhole shafts; Other inspection or access chambers; Accessories therefor characterised by the lining of the shaft

Abstract

The application relates to an assembled inspection well, which comprises a well body, wherein a plurality of connectors are arranged on the circumferential side edge of the well body, telescopic transition components are arranged on the connectors, an extension pipe is detachably connected to the top of the well body, and a sealing component is arranged at one end, far away from a base pipe, of the extension pipe; the flexible transition subassembly includes flexible parent tube, the both ends of flexible parent tube all are provided with the connecting piece. This application has the effect that improves and use well body life.

Description

Assembled inspection shaft
Technical Field
The application relates to the technical field of underground pipeline fittings, in particular to an assembled inspection well.
Background
The inspection well is used for maintaining power supply, water drainage, pollution discharge, communication, cable television, gas pipes, street lamp lines and the like of urban underground infrastructure, and is convenient to install. It is usually installed at the intersection of pipelines, turning, where the pipe diameter or slope changes, and at certain intervals on straight pipeline sections, and is convenient for regular inspection of the attached structures.
The inspection well in the related art is a cement well body, a water through hole is formed in the side edge of the well body, a cement pipe is inserted into the water through hole, and then the chain joint is blocked by cement.
In view of the above-mentioned related technologies, the inventors found that water seepage often occurs in the joint gap between the cement pipe and the water through hole, which results in the settlement of soil and thus the settlement of a well body, which results in the fracture of the joint between the cement pipe and the well body and thus the reduction of the service life of the inspection well. .
Disclosure of Invention
In order to improve inspection shaft life, this application provides a fabricated inspection shaft.
The application provides a fabricated inspection well adopts following technical scheme:
an assembled inspection well comprises a well body, wherein a plurality of connectors are arranged on the circumferential side wall of the well body, telescopic transition assemblies are arranged on the connectors, an extension pipe is detachably connected to the top of the well body, and a sealing assembly is arranged at one end, far away from the well body, of the extension pipe;
the flexible transition subassembly includes flexible parent tube, the both ends of flexible parent tube all are provided with the connecting piece.
By adopting the technical scheme, after the well body is settled, the outer pipe and the connecting port fall off, but the telescopic base pipe maintains the connection tightness of the telescopic base pipe and the connecting port through the self deformation, so that the well body is prevented from being further damaged due to water leakage, and the service life of the inspection well is ensured; meanwhile, the arrangement of the extension pipe can meet the assembly of inspection wells with different depth requirements, so that the applicability of the integrally assembled inspection well is improved.
Optionally, the telescopic base pipe comprises an inner pipe and an outer pipe sleeved on the inner pipe, telescopic corrugated pipes are arranged at two ends of the inner pipe, and one ends of the telescopic corrugated pipes, far away from the inner pipe, are connected with the connecting piece.
By adopting the technical scheme, the telescopic corrugated pipe deforms after the well body is settled, so that the connection tightness is ensured, and the service life of the inspection well is ensured; meanwhile, the outer pipe plays a role in protecting the telescopic corrugated pipe, so that the whole service life of the inspection well is ensured.
Optionally, a plurality of elastic reinforcing members are arranged between the inner pipe and the outer pipe, and each elastic reinforcing member comprises a plurality of circumferential supporting rings and an axial supporting rod.
Through adopting above-mentioned technical scheme, through the support intensity of the flexible parent tube of setting up assurance of lock ring and bracing piece, prevent because the top buries earth underground too much and lead to flexible parent tube to be flattened and unable normal drainage to guarantee the life of inspection shaft.
Optionally, the connecting piece includes a connection base ring connected with the corrugated expansion pipe, a fixing piece for connecting the connection base ring is arranged on the connection port, and an insertion slot for inserting the outer pipe is arranged on the connection base ring.
Through adopting above-mentioned technical scheme for in the outer tube inserts the slot, then connect through connecting base ring and mounting, thereby guarantee the holistic stability of flexible parent tube, make the well body when not taking place to subside, thereby outer tube and connecting base ring play the guard action to bellows and prevent that bellows from being crushed, thereby guaranteed the life of inspection shaft.
Optionally, the fixing piece comprises a fixing steel sleeve, the fixing steel sleeve is fixedly connected with the connector through a screw, a fixing base ring for connecting the connecting base ring is arranged on the fixing steel sleeve, a plurality of sealing pieces used for inserting the connector are arranged on the inner wall of the fixing steel sleeve, the cross section area of each sealing piece is gradually reduced along the direction of keeping away from the steel sleeve, and the diameter of the cross section of the connector is gradually increased along the direction of keeping away from the well body.
Through adopting above-mentioned technical scheme, during the gasket inserted the connector, compressed gradually and make the gasket paste closely at the connector play to make fixed steel bushing and connector because subside or reasons such as vibrations take place slight incline, fixed steel bushing still pastes closely in the connector under the effect of gasket, thereby reduce the outflow of rivers.
Optionally, a clamping groove is formed in the side edge of one end of the extension pipe, a clamping ring inserted into the clamping groove is arranged on the well body, and a sealing ring is sleeved on the clamping ring.
Through adopting above-mentioned technical scheme, only need insert the extension pipe in the snap ring, can accomplish the assembly of extension pipe, the setting up of sealing washer has guaranteed that the leakproofness has reduced overflowing of rivers simultaneously to guarantee life.
Optionally, a sealing cavity is arranged in the sealing ring, and liquid sealant is filled in the sealing cavity.
By adopting the technical scheme, when the well body and the extension pipe slightly incline, the liquid sealant in the sealing ring moves to support the place with large gap, so that the sealing property between the well body and the extension pipe is ensured; after the sealing ring is damaged, the liquid sealant in the sealing cavity overflows and is used for bonding the pipe body and the extension pipe, so that the waterproof effect is ensured.
Optionally, an extension pipe is slidably connected in an inner cavity of one end, away from the well body, of the extension pipe, and one end, away from the support, of the extension pipe is provided with a bearing plate for fixedly connecting with the ground.
Through adopting above-mentioned technical scheme, the loading board removes along with ground to prevent because ground takes place wholly to take place to subside the back, inspection shaft height can't change, thereby leads to seal assembly outstanding in ground, and seal assembly takes place to damage after using for a long time.
Optionally, a plurality of guide posts are arranged on the bearing plate, limiting holes for the guide posts to penetrate are formed in the outer wall of the extension pipe, and buffer springs are sleeved on the guide posts.
By adopting the technical scheme, the guide post can prevent the extension pipe from inclining when sliding in the extension pipe and prevent the extension pipe from being damaged when serious; the extension pipe plays a certain supporting role on the extension pipe under the action of the buffer spring to prevent collapse; and at the same time, can be quickly recovered together with the ground after the vehicle passes by.
Optionally, the closing assembly includes a connecting sleeve screwed to the telescopic tube, and a well cover for closing the connecting base ring is rotatably connected to the connecting sleeve.
By adopting the technical scheme, the well lid is rotatably connected to the connecting sleeve, so that the well lid can be conveniently opened, and the interior of the inspection well can be cleaned; meanwhile, the connecting sleeve is fixedly connected with the telescopic pipe through screw connection, thereby forming labyrinth type sealing and reducing the water leakage condition.
In summary, the present application includes at least one of the following beneficial technical effects:
1. after the well body is settled, the outer pipe and the connecting port fall off, but the connection tightness of the telescopic base pipe and the connecting port is maintained through the deformation of the telescopic base pipe, so that the well body is prevented from being further damaged due to water leakage, and the service life of the inspection well is ensured;
2. through the setting of flexible pipe, prevent that the well body from subsiding the back, the seal subassembly is followed and is taken place to subside together to lead to ground damage.
Drawings
Fig. 1 is a schematic view of the overall structure of a fabricated manhole according to the present invention.
FIG. 2 is a cross-sectional view of a fabricated manhole of the present application.
FIG. 3 is an exploded view of a telescoping transition assembly in a fabricated manhole according to the present application.
FIG. 4 is an enlarged view of portion A of FIG. 2 of a fabricated manhole according to the present application.
FIG. 5 is a cross-sectional view of a seal ring in a fabricated manhole according to the present application.
FIG. 6 is an exploded view of an extension tube and closure assembly of a fabricated manhole according to the present application.
Description of reference numerals: 1. a well body; 2. a mounting seat; 3. a pipe body; 4. a connecting port; 5. a telescopic transition assembly; 6. an extension pipe; 7. a closure assembly; 8. a telescopic base pipe; 9. a connecting member; 10. an inner tube; 11. an outer tube; 12. a bellows; 13. an elastic reinforcement; 14. a support ring; 15. a support bar; 16. a linking base ring; 17. a fixing member; 171. fixing the steel sleeve; 18. sealing the sheet; 19. a fixed base ring; 20. a slot; 21. a snap ring; 22. a seal ring; 23. liquid sealant; 24. a telescopic pipe; 25. a carrier plate; 26. a guide post; 27. a buffer spring; 28. a limiting plate; 29. connecting sleeves; 30. a boss; 31. a well cover; 32. and (4) water leakage holes.
Detailed Description
The present application is described in further detail below with reference to figures 1-6.
The embodiment of the application discloses a fabricated inspection well. Referring to fig. 1 and 2, the fabricated manhole includes a well body 1. The well body 1 includes horizontally mount pad 2 and with mount pad 2 integrated into one piece's body 3, be provided with a plurality of cross-sectionally on the circumference lateral wall of body 3 and personally submit circular shape connector 4. Each connecting port 4 is connected with a telescopic transition component 5. One end of the pipe body 3, which is far away from the bracket, is detachably connected with an extension pipe 6. The end of the extension pipe 6 remote from the pipe body 3 is provided with a sealing component 7.
Referring to fig. 2 and 3, the telescopic transition assembly 5 includes a telescopic base pipe 8, and a connection member 9 for connection is provided between the telescopic base pipe 8 and the connection port 4. The flexible parent tube 8 includes inner tube 10 and outer tube 11, and the length of outer tube 11 is longer than the length of inner tube 10, and the both ends of inner tube 10 length direction all are provided with flexible bellows 12 for the well body 1 takes place to subside the back, and outer tube 11 drops with connector 4, but flexible bellows 12 maintains the compactness that flexible bellows 12 and connector 4 are connected through self deformation, thereby prevents to leak and causes well body 1 further damage, thereby leads to the inspection shaft to damage. A plurality of elastic reinforcing members 13 are arranged between the inner tube 10 and the outer tube 11, and the elastic reinforcing members 13 comprise a plurality of circumferential support rings 14 and a plurality of axial support rods 15 which are made of stainless steel. The equal interval setting of inner tube 10 length direction is followed to the lock ring 14, and the equal interval setting of inner tube 10 circumference is followed to circumference bracing piece 15, fixed connection between lock ring 14 and the bracing piece 15, and the support intensity of 8 base pipes that stretch out and draw back is guaranteed through setting up of lock ring 14 and bracing piece 15, prevents to bury earth too much because the top and lead to 8 base pipes that stretch out and draw back to be squashed and unable normal drainage. The inner tube 10, the elastic reinforcement 13, the outer tube 11 and the telescopic corrugated tube 12 are arranged through injection molding and integrated forming, the overall structural strength of the telescopic base tube 8 is further improved, and damage and leakage are prevented.
Referring to fig. 2 and 4, the connecting member 9 includes a connecting base ring 16 fixedly connected to the bellows 12 and a fixing member 17 mounted on the connecting port 4. The fixing member 17 includes a fixing steel sleeve 171, and the fixing steel sleeve 171 is fixedly connected to the connection port 4 by a bolt. Be fixed with a plurality of sealing strips 18 on the fixed steel bushing 171 inner wall, the circumference densely covered setting of sealing strip 18 along fixed steel bushing 171, the cross sectional area of sealing strip 18 reduces along keeping away from fixed steel bushing 171 direction gradually, the 4 inner chambers of connector cross sectional diameter is along keeping away from body 3 direction crescent, thereby make sealing strip 18 insert in connector 4, by the gradual compression make sealing strip 18 paste tightly at connector 4 play, thereby make fixed steel bushing 171 and connector 4 because subside or reasons such as vibrations take place slight incline, fixed steel bushing 171 still pastes tightly in connector 4 under the effect of sealing strip 18, thereby reduce the outflow of rivers. Meanwhile, when the sealing sheets 18 are tightly inserted into the connecting port 4, the sealing sheets 18 are attached to each other and attached to the inner wall of the connecting port 4 without bulges so as to influence the normal circulation of water flow. A fixed base ring 19 for connecting the connecting base ring 16 is fixed on one end of the fixed steel sleeve 171 far away from the tube body 3. The fixed base ring 19 and the connecting base ring 16 are fixedly connected through bolts, and a sealing gasket is arranged between the fixed base ring and the connecting base ring for reducing water outflow.
Referring to fig. 3 and 4, the connection base ring 16 is provided with a slot 20 for the outer tube 11 to be inserted, so that after the telescopic transition component 5 and the connection port 4 are installed and fixed, the outer tube 11 is inserted into the slot 20, thereby improving the stability of the outer tube 11, and simultaneously playing a certain protection role for the telescopic corrugated tube 12, thereby reducing the damage of the telescopic base tube 8, and ensuring the practical life of the detection well.
Referring to fig. 2 and 5, a clamping ring 21 is arranged on the end face of the pipe body 3 far away from one end of the base, a clamping groove for clamping the clamping ring 21 is formed in the extension pipe 6, and a sealing ring 22 is sleeved on the clamping ring 21. The telescopic base pipe 8 is directly clamped on the inner wall of the pipe body 3 through the clamping groove to ensure the stability of the extension pipe 6 through landfill soil after the installation is finished, and the extension pipe 6 with different lengths can be assembled to meet the requirements of different installation depths. The cross section of the sealing ring 22 is concave. A sealing cavity is arranged in the sealing ring 22, and liquid sealant 23 is filled in the sealing cavity. The sealing ring 22 is made of beryllium bronze as a whole, which ensures the supporting strength of the sealing ring 22 and the toughness of the sealing ring 22, thereby ensuring the sealing property between the pipe body 3 and the extension pipe 6. When a slight inclination occurs between the pipe body 3 and the extension pipe 6, the liquid sealant 23 in the sealing ring 22 moves to support the large gap so as to ensure the sealing performance between the pipe body 3 and the extension pipe 6. After the sealing ring 22 is damaged, the liquid sealant 23 in the sealing cavity overflows to bond the pipe body 3 and the extension pipe 6, so that the waterproof effect is ensured.
Referring to fig. 2 and 6, an extension pipe 24 is arranged between the extension pipe 6 and the closing assembly 7, the extension pipe 24 is slidably sleeved in the extension pipe 6, and the closing assembly 7 is arranged at one end of the extension pipe 24 far away from the extension pipe 6. Be provided with the loading board 25 on the flexible pipe 24 outer wall, loading board 25 and ground fixed connection in the installation for loading board 25 moves along with ground, thereby prevents because ground takes place wholly to take place to subside the back, and the inspection shaft height can't change, thereby leads to sealing subassembly 7 salient in ground, seals subassembly 7 and takes place to damage after the vehicle striking for a long time. The bearing plate 25 is provided with a plurality of guide posts 26, the side wall of the extension pipe 6 is provided with a limiting plate 28, the limiting plate 28 is provided with a limiting hole for the guide posts 26 to pass through, the guide posts 26 are sleeved with buffer springs 27, and two ends of the buffer springs 27 are respectively abutted against the limiting plate 28 and the bearing plate 25. The guide posts 26 act to prevent tilting of the extension tube 24 as it slides within the extension tube 6, and in the severe cases to cause failure of the extension tube 6 to break. The buffer spring 27 is used for enabling the extension pipe 6 to play a certain supporting role on the telescopic pipe 24 so as to prevent the telescopic pipe from collapsing; and at the same time, can be quickly recovered together with the ground after the vehicle passes by.
Referring to fig. 1 and 6, the sealing assembly 7 includes a connecting sleeve 29, the connecting sleeve 29 is screwed on the outer wall of the extension tube 24, a boss 30 is arranged on the outer side wall of the connecting sleeve 29, a well cover 31 for sealing the connecting sleeve 29 is rotatably connected to the boss 30, and a water leakage hole 32 for water leakage is arranged on the well cover 31. Well lid 31 rotates to be connected on boss 30, is convenient for open well lid 31, clears up the inspection shaft is inside. Meanwhile, the connecting sleeve 29 is fixedly connected with the extension tube 24 through screw threads, so that labyrinth type sealing is formed, and the water leakage situation is reduced.
The implementation principle of an assembled inspection shaft of the embodiment of the application is as follows: firstly, placing a well body 1 in a tunnel; the fixing piece 17 is installed at the connection port 4 of the well body 1, and then the fixing piece 17 is connected with the connection base ring 16 through a bolt, so that the telescopic transition assembly 5 is connected with the well body 1. The snap groove of the extension pipe 6 is then aligned with the snap ring 21, completing the installation of the extension pipe 6. Then the opening of the extension pipe 6 is closed by a wood board, then a road surface is built on the road surface, then the extension pipe 24 is inserted into the extension pipe 6, then the bearing plate 25 of the extension pipe 6 is fixed with the ground, and then the closing assembly 7 is screwed on the extension pipe 6. When the well body 1 is settled, the telescopic transition component 5 is bent, and damage to the inspection well caused by further water leakage is reduced. Extension tube 24 is connected with ground simultaneously to make extension tube 24 break away from partly from extension tube 6, thereby guarantee that closing assembly 7 can not collapse with the well body 1 who, thereby guaranteed the normal use on ground.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. An assembled manhole, its characterized in that: the well comprises a well body (1), wherein a plurality of connecting ports (4) are formed in the circumferential side wall of the well body (1), a telescopic transition assembly (5) is arranged on each connecting port (4), an extension pipe (6) is detachably connected to the top of the well body (1), and a sealing assembly (7) is arranged at one end, far away from the well body (1), of each extension pipe (6);
the telescopic transition assembly (5) comprises a telescopic base pipe (8), and connecting pieces (9) are arranged at two ends of the telescopic base pipe (8).
2. The fabricated manhole of claim 1, wherein: the telescopic base pipe (8) comprises an inner pipe (10) and an outer pipe (11) sleeved on the inner pipe (10), corrugated telescopic pipes (24) are arranged at two ends of the inner pipe (10), and one ends, far away from the inner pipe (10), of the corrugated telescopic pipes (24) are connected with the connecting piece (9).
3. The fabricated manhole of claim 2, wherein: a plurality of elastic reinforcing pieces (13) are arranged between the inner pipe (10) and the outer pipe (11), and each elastic reinforcing piece (13) comprises a plurality of circumferential supporting rings (14) and radial supporting rods (15).
4. The fabricated manhole of claim 2, wherein: the connecting piece (9) comprises a connecting base ring (16) connected with the corrugated expansion pipe (24), a fixing piece (17) for connecting the connecting base ring (16) is arranged on the connecting port (4), and an inserting groove (20) for inserting the outer pipe (11) is formed in the connecting base ring (16).
5. The fabricated manhole of claim 4, wherein: the fixing piece (17) comprises a fixing steel sleeve (171), the fixing steel sleeve (171) is fixedly connected with the connecting port (4) through a screw, a fixing base ring (19) for connecting the connecting base ring (16) is arranged on the fixing steel sleeve (171), a plurality of sealing pieces (18) for inserting the connecting port (4) are arranged on the inner wall of the fixing steel sleeve (171), the cross section of each sealing piece (18) is trapezoidal, and the diameter of the cross section of the connecting port (4) is gradually increased along the direction of keeping away from the well body (1).
6. The fabricated manhole of claim 1, wherein: be provided with the joint groove on the side of the one end of extension tube (6), be provided with snap ring (21) that have the joint groove of inserting on well body (1), the cover is equipped with sealing washer (22) on snap ring (21).
7. The fabricated manhole of claim 6, wherein: a sealing cavity is formed in the sealing ring (22), liquid sealant (23) is filled in the sealing cavity, and the cross section of the sealing ring (22) is concave.
8. The fabricated manhole of claim 6, wherein: an extension pipe (24) is connected in a sliding mode in an inner cavity of one end, far away from the well body (1), of the extension pipe (6), and a bearing plate (25) fixedly connected with the ground is arranged at one end, far away from the well body (1), of the extension pipe (24).
9. The fabricated manhole of claim 8, wherein: be provided with a plurality of guide posts (26) on the outer wall of extension pipe (6), be provided with the spacing hole that supplies guide post (26) to pass on loading board (25), the cover is equipped with buffer spring (27) on guide post (26).
10. The fabricated manhole of claim 9, wherein: the connecting piece (9) comprises a connecting base ring (16) screwed on the telescopic pipe (24), and the connecting base ring (16) is rotationally connected with a well cover (31) which is the same as the closed connecting base ring (16).
CN202110013015.1A 2021-04-16 2021-04-16 Assembled inspection shaft Pending CN112832292A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110013015.1A CN112832292A (en) 2021-04-16 2021-04-16 Assembled inspection shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110013015.1A CN112832292A (en) 2021-04-16 2021-04-16 Assembled inspection shaft

Publications (1)

Publication Number Publication Date
CN112832292A true CN112832292A (en) 2021-05-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110013015.1A Pending CN112832292A (en) 2021-04-16 2021-04-16 Assembled inspection shaft

Country Status (1)

Country Link
CN (1) CN112832292A (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1726726A1 (en) * 2005-05-23 2006-11-29 Dyka B. V. Inspection pit
CN106567411A (en) * 2016-11-15 2017-04-19 杭州锦程实业有限公司 Inspection well with multilayer structure and manufacturing method thereof
CN209429242U (en) * 2018-11-09 2019-09-24 温州维新工业设计有限公司 A kind of plastic inspection well
CN211114015U (en) * 2019-11-26 2020-07-28 信俊鹏 Municipal works road flood prevention rainwater well structure
CN111549888A (en) * 2020-06-16 2020-08-18 中冶天工集团有限公司 Prefabricated assembly type drainage inspection well and construction method thereof
CN111827359A (en) * 2020-07-27 2020-10-27 福建兴港建工有限公司 Valve well and construction method thereof
CN212427436U (en) * 2020-05-25 2021-01-29 江阴普顿塑胶有限公司 Plastic inspection well sealing connection mechanism
CN212643821U (en) * 2020-06-29 2021-03-02 广东文泓建设有限公司 Underground pipe network connecting device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1726726A1 (en) * 2005-05-23 2006-11-29 Dyka B. V. Inspection pit
CN106567411A (en) * 2016-11-15 2017-04-19 杭州锦程实业有限公司 Inspection well with multilayer structure and manufacturing method thereof
CN209429242U (en) * 2018-11-09 2019-09-24 温州维新工业设计有限公司 A kind of plastic inspection well
CN211114015U (en) * 2019-11-26 2020-07-28 信俊鹏 Municipal works road flood prevention rainwater well structure
CN212427436U (en) * 2020-05-25 2021-01-29 江阴普顿塑胶有限公司 Plastic inspection well sealing connection mechanism
CN111549888A (en) * 2020-06-16 2020-08-18 中冶天工集团有限公司 Prefabricated assembly type drainage inspection well and construction method thereof
CN212643821U (en) * 2020-06-29 2021-03-02 广东文泓建设有限公司 Underground pipe network connecting device
CN111827359A (en) * 2020-07-27 2020-10-27 福建兴港建工有限公司 Valve well and construction method thereof

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Application publication date: 20210525

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