CN212453000U - Water stop structure for connecting drainage pipeline and inspection well - Google Patents
Water stop structure for connecting drainage pipeline and inspection well Download PDFInfo
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- CN212453000U CN212453000U CN202020963799.5U CN202020963799U CN212453000U CN 212453000 U CN212453000 U CN 212453000U CN 202020963799 U CN202020963799 U CN 202020963799U CN 212453000 U CN212453000 U CN 212453000U
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Abstract
本实用新型涉及排水管道与检查井连接措施的技术领域，尤其是涉及一种用于连接排水管道与检查井的止水结构，其包括开设有预留孔洞的检查井，检查井内壁位于所述预留孔洞的外周壁开设有圆周槽一，预留孔洞内设置有预置套管，且预置套管固定有贴合圆周槽一的延展圆环一，预置套管内设置有预置管接头，预置管接头朝向检查井内的一端的外周壁固定有延展圆环二，延展圆环一朝向检查井内的端面开设有供延展圆环二贴合的圆周槽二；预置管接头的外周壁与预置套管的内周壁之间形成有浇筑空腔，圆周延展块朝向检查井内的面上开设有浇筑口。本实用新型提高检查井内连接排水管道的结构抗变形能力，提高排水管道和检查井连接结构的稳定性和密封效果。
The utility model relates to the technical field of connection measures between drainage pipes and inspection wells, in particular to a water stop structure for connecting drainage pipes and inspection wells. The outer peripheral wall of the reserved hole is provided with a circumferential groove 1, the reserved hole is provided with a preset sleeve, and the preset sleeve is fixed with an extension ring 1 that fits the circumferential groove 1, and a preset pipe is arranged in the preset sleeve. A joint, the outer peripheral wall of the end of the preset pipe joint facing the inspection well is fixed with an extended ring two, and the end face of the extended ring one facing the inspection well is provided with a circumferential groove two for the extended ring two to fit; the outer circumference of the preset pipe joint A pouring cavity is formed between the wall and the inner peripheral wall of the preset casing, and a pouring port is opened on the surface of the circumferential extension block facing the inside of the inspection well. The utility model improves the deformation resistance of the structure connecting the drainage pipes in the inspection well, and improves the stability and sealing effect of the connection structure between the drainage pipes and the inspection well.
Description
Technical Field
The utility model belongs to the technical field of the technique of drainage pipe and inspection shaft connected measures and specifically relates to a stagnant water structure for connecting drainage pipe and inspection shaft is related to.
Background
The drainage pipe refers to a system consisting of a pipe channel for collecting and discharging sewage, wastewater and rainwater and accessory facilities thereof. Including main pipes, branch pipes and pipes leading to the treatment plant, whether built on streets or anywhere else, as long as the pipes are functioning as drains, should be counted as drains. The inspection well is a well-shaped structure which is formed by integrally injection molding or bricklaying plastic for periodic inspection, cleaning and dredging or operation inspection of going down a well, is used at a buried drainage pipeline in the range of a building district (residential district, public building district, factory district, etc.), has the buried depth of not more than 6m, is generally arranged at the intersection of drainage pipelines, a turning place, a pipe diameter or gradient changing place, a water drop place, etc. The joint of the drainage pipeline and the inspection well is generally provided with a corresponding water stopping structure to realize the connection and the sealing of the drainage pipeline and the inspection well.
Chinese patent with publication number CN206916904U discloses a flexible water stop structure, which comprises an inspection well, a reserved hole arranged on the inspection well, a drainage pipeline penetrating the reserved hole, a metal sleeve and an expanded concrete layer, wherein the metal sleeve is abutted against the inner wall of the reserved hole, the drainage pipeline penetrates the metal sleeve, and the expanded concrete layer is filled between the metal sleeve and the drainage pipeline.
The above prior art solutions have the following drawbacks: the metal sleeve is as drainage pipe and inspection shaft and reserves the intermediate junction spare of hole, on the one hand, reserve the hole on with the inspection shaft and pass through outer pipe wall butt, on the other hand inner pipe wall passes through expanded concrete layer and connects drainage pipe, in the in-service use, the inspection shaft receives external force, directly conduct to metal sleeve department after the extrusion deformation that cold and hot change produced, metal sleeve needs to bear the extrusion deformation power that comes from between drainage pipe and the expanded concrete simultaneously, when the atress is inhomogeneous on metal sleeve and expanded concrete and inspection shaft connection face, it is easy not hard up, produce the gap, thereby cause the metal sleeve fracture, drop, be unfavorable for the long-time use that metal sleeve and drainage pipe connect.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a stagnant water structure for connecting drainage pipe and inspection shaft, have the anti deformability of structure of connecting drainage pipe in improving the inspection shaft, improve drainage pipe and inspection shaft connection structure's stability and sealed effect to prior art exist.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
a water stopping structure for connecting a drainage pipeline and an inspection well comprises the inspection well with a reserved hole, wherein a first circumferential groove is formed in the outer circumferential wall of the reserved hole, the inner wall of the inspection well is provided with a preset sleeve, the preset sleeve is fixedly provided with a first extension ring attached to the first circumferential groove, a preset pipe joint is arranged in the preset sleeve, a second extension ring is fixedly arranged on the outer circumferential wall of one end, facing the inside of the inspection well, of the preset pipe joint, and a second circumferential groove for attaching the second extension ring is formed in the end face, facing the inside of the inspection well, of the first extension ring;
a pouring cavity is formed between the outer peripheral wall of the preset pipe joint and the inner peripheral wall of the preset sleeve, and a pouring opening for pouring concrete into the pouring cavity is formed in the surface, facing the inside of the inspection well, of the extension ring II.
By adopting the technical scheme, when a constructor presets the inspection well, the preset sleeve is fixedly connected with the inner wall of the reserved hole, meanwhile, a first circumferential groove for embedding the first extension ring is preset, when the water inflow of the inspection well is guided into the preset sleeve, the extension ring I is tensioned in the circumferential groove I to form a hooking effect on the circumferential groove I, the resistance to the stress deformation of the preset sleeve caused by external acting force is enhanced, the stability of the preset sleeve fixedly connected with the reserved hole is improved, after the preset pipe joint is arranged in the preset sleeve, embedding the second extension ring into the second circumferential groove to achieve the hooking effect of the second extension ring on the second circumferential groove, pouring concrete into the pouring cavity from the pouring opening, therefore, the preset pipe joint is fixedly connected with the preset sleeve and forms sealing, the structural anti-deformation capacity of the drainage pipeline connected in the inspection well is improved, and the stability and the sealing effect of the drainage pipeline and the inspection well connecting structure are improved.
The present invention may be further configured in a preferred embodiment as: the opening size of the reserved hole is reduced from one side of the inner wall of the inspection well to the outer wall of the inspection well;
the outer wall of the preset sleeve is attached to the inner wall of the reserved hole, a plurality of inserting rods inserted into the inspection well are fixed on the outer pipe wall of the preset sleeve, a pouring channel penetrating through the inner wall and the outer wall of the inspection well is formed in the inspection well, a pouring hole communicated with the pouring channel is formed in the first extension ring, and one end, far away from the preset sleeve, of each inserting rod extends into the pouring channel.
Through adopting above-mentioned technical scheme, the reservation hole of loudspeaker form plays spacing effect to the preset sleeve pipe that agrees with the reservation hole inner wall along the water inflow direction, improve the stability of presetting the sleeve pipe fixed connection reservation hole, when presetting the inspection shaft, set up when reserving the hole, set up a plurality of ways of pouring in advance, will preset the sleeve pipe laminating reservation hole, make the spliced pole insert simultaneously and pour in the way, then pour the filled seal again by the notes hole and pour the way, a plurality of spliced poles of concrete fixed connection that the way of pouring was pour at this moment, form fastening effect to prefabricated sleeve pipe, further improve the installation stability who presets the sleeve pipe.
The present invention may be further configured in a preferred embodiment as: and a hole sealing bolt is screwed on the injection hole.
Through adopting above-mentioned technical scheme, constructor fills and plays to pour the way after, will annotate the hole and be sealed by hole sealing bolt shutoff to improve the leakproofness of annotating hole department, be favorable to reducing the infiltration to presetting inside the sleeve pipe.
The present invention may be further configured in a preferred embodiment as: and a first sealing ring is arranged in the first circumferential groove and is respectively tightly attached to the wall of the first circumferential groove and the first extension ring.
Through adopting above-mentioned technical scheme, sealing washer one is favorable to further improving the leakproofness between circumference groove one and the extension ring one, reduces the infiltration problem of extension ring one laminating circumference groove department in the use.
The present invention may be further configured in a preferred embodiment as: the outer wall of the preset pipe joint is fixedly sleeved with a plurality of strengthening rings, and the strengthening rings are arranged along the axial direction of the preset pipe joint.
Through adopting above-mentioned technical scheme, the reinforcing ring strengthens the ability that preset pipe joint periphery wall resisted the tension and compression deformation on the one hand, strengthens the structural strength of preset pipe joint, and on the other hand a plurality of reinforcing rings form the multiple spot fixed knot to preset pipe joint after pouring the concrete fixed connection in the cavity, further strengthen the connection stability of preset pipe joint after pouring.
The present invention may be further configured in a preferred embodiment as: the outer peripheral wall of the preset pipe joint is sleeved with a water-swelling water stop ring, and the water-swelling water stop ring abuts against the inner wall of the preset sleeve.
Through adopting above-mentioned technical scheme, meet water inflation seal ring and establish at preset coupling periphery wall as sealed stagnant water spare with adding, when preset coupling and preset during intraductal infiltration water of casing, meet water inflation seal ring and meet water and expand the stagnant water promptly, strengthen preset coupling and preset the sealed effect between the casing.
The present invention may be further configured in a preferred embodiment as: and a second sealing ring is arranged on the surface of the second extension ring facing the second circumferential groove.
Through adopting above-mentioned technical scheme, sealing washer two is favorable to further improving the leakproofness between extension ring two and the circumferential groove two, reduces the infiltration problem of extension ring two laminating circumferential groove two in the use.
The present invention may be further configured in a preferred embodiment as: the inner wall of the preset pipe joint is provided with an internal thread for screwing the drain pipe.
Through adopting above-mentioned technical scheme, constructor installs and presets the sleeve pipe and presets the coupling after, can connect outside drain pipe soon through the internal thread that presets the coupling, and threaded connection structure leakproofness and connection stability are respond well, and the quick butt joint installation of constructor of being convenient for.
To sum up, the utility model discloses a following at least one useful technological effect:
1. the extension ring I is tensioned in the circumferential groove I to form a hooking effect on the circumferential groove I, the extension ring II is embedded in the circumferential groove II, the hooking effect on the extension ring II on the circumferential groove II is enhanced, the resistance to stress deformation of the preset sleeve caused by external acting force is enhanced, the stability of a reserved hole of the fixed connection of the preset sleeve is improved, and after concrete is filled in a pouring cavity from a pouring opening, the preset pipe joint is fixedly connected with the preset sleeve to form sealing, so that the structural deformation resistance of a connecting drainage pipeline in an inspection well is improved, and the stability and the sealing effect of a connecting structure of the drainage pipeline and the inspection well are improved;
2. the horn-shaped reserved hole has a limiting effect on the preset sleeve along the water inflow direction, the stability of the preset sleeve fixedly connected with the reserved hole is improved, after the pouring channel is poured and sealed by the injection hole, the concrete is fixedly connected with the plurality of inserting rods, a fastening effect is formed on the prefabricated sleeve, and the installation stability of the preset sleeve is further improved;
3. the reinforcing rings enhance the capability of the outer peripheral wall of the preset pipe joint for resisting tension and compression deformation and enhance the structural strength of the preset pipe joint, and a multi-point fixing structure for the preset pipe joint is formed between the plurality of reinforcing rings and concrete, so that the connection stability of the preset pipe joint after pouring is further enhanced.
Drawings
Fig. 1 is a schematic structural diagram of a connection structure for fixing a pre-installed casing and a pre-installed pipe joint at a pre-installed hole of an inspection well in the embodiment.
Fig. 2 is an enlarged view of a portion a in fig. 1, and is used for embodying the structure of the first seal ring, the second seal ring, the pouring channel, the first circumferential groove and the second circumferential groove.
In the figure, 1, a manhole; 11. reserving holes; 12. pouring a road; 13. a first circumferential groove; 14. a first sealing ring; 15. a concrete layer II; 2. presetting a sleeve; 21. extending the first circular ring; 211. a second circumferential groove; 212. injecting holes; 22. a plug rod; 23. hole sealing bolts; 24. a second sealing ring; 3. presetting a pipe joint; 31. extending the second circular ring; 32. pouring a mouth; 33. a reinforcing ring; 34. a water stop ring expanding when encountering water; 35. an internal thread; 4. pouring a cavity; 41. a first concrete layer; 5. and a water discharge pipe.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, for the utility model discloses a stagnant water structure for connecting drainage pipe and inspection shaft, including seting up the inspection shaft 1 of tubaeform reservation hole 11 in advance, it is greater than the opening in the inspection shaft 1 outside to reserve the inboard opening of hole 11 and reserve the opening of hole 1, the periphery wall that the inner wall of inspection shaft 1 lies in reservation hole 11 has seted up round circumferential groove one 13, it wears to be equipped with preset sleeve pipe 2 in the reservation hole 11, preset sleeve pipe 2 is fixed with extension ring one 21 towards the periphery wall of the inboard one end of inspection shaft 1, the outer loop cell wall and the tank bottom wall laminating of extension ring one 21 and circumferential groove one 13, be provided with preset coupling 3 in the preset sleeve pipe 2, preset coupling 3 is fixed with extension ring two 31 towards the periphery wall of the one end in the inspection shaft 1, extension ring one 21 has seted up towards the terminal surface circumference in the inspection shaft 1 and has supplied circumferential groove two 211, and extension ring two 31 and the outer loop wall of circumferential groove two 211 and; the preset pipe joint 3 is horizontally connected into the preset sleeve 2, a pouring cavity 4 is formed between the outer peripheral wall of the direct-current section of the preset pipe joint 3 and the inner peripheral wall of the horn-shaped preset sleeve 2, a pouring opening 32 is formed in the surface, facing the inside of the inspection well 1, of the extension ring II 31, and a concrete layer I41 is poured into the pouring cavity 4 through the pouring opening 32 by a constructor; when a constructor presets an inspection well 1, a preset sleeve 2 is fixedly connected with the inner wall of a preset hole 11, the horn-shaped preset hole 11 has a limiting effect on the preset sleeve 2 matched with the inner wall of the preset hole 11 along the water inflow direction, the stability of the preset sleeve 2 fixedly connected with the preset hole 11 is improved, when the inspection well 1 is filled with water and is guided into the preset sleeve 2, an extension ring I21 is tensioned in a circumferential groove I13 to form a hooking effect on the circumferential groove I13, the resistance of the preset sleeve 2 to the stress deformation caused by external force is enhanced, the stability of the preset sleeve 2 fixedly connected with the preset hole 11 is improved, after the preset pipe joint 3 is arranged in the preset sleeve 2, the extension ring II 31 is embedded in the circumferential groove II 211, the extension ring II 31 forms the hooking effect on the circumferential groove II 211, and after a pouring opening 32 is filled with concrete towards a pouring cavity 4, the preset pipe joint 3 is fixedly connected with the preset sleeve 2 through a concrete layer I41 to form sealing, the structure anti-deformation capability of the 5 pipelines of the drainage pipe connected in the inspection well 1 is improved, and the stability and the sealing effect of the 5 pipelines of the drainage pipe and the connection structure of the inspection well 1 are improved.
Referring to fig. 1, the inner pipe wall of the preset pipe joint 3 far away from one end of the inspection well 1 is provided with internal threads 35 and is screwed with a drain pipe 5; after constructor installed preset sleeve pipe 2 and preset coupling 3, can connect outside drain pipe 5 soon through preset coupling 3's internal thread 35, threaded connection structural leakproofness and connection stability are respond well, and the constructor of being convenient for docks installation drain pipe 5 fast.
Referring to fig. 1 and 2, a plurality of plug-in rods 22 inserted into the inspection well 1 are fixed on the outer wall of the preset sleeve 2, the plug-in rods 22 are perpendicular to the outer wall of the preset sleeve 2, a pouring channel 12 penetrating through the inner wall and the outer wall of the inspection well 1 is formed in the extension direction of the plug-in rods 22 of the inspection well 1, an injection hole 212 communicated with the pouring channel 12 is formed in the first extension ring 21, one end, far away from the preset sleeve 2, of each plug-in rod 22 extends into the pouring channel 12, a constructor injects concrete into the concrete from the injection hole 212 to form a second concrete layer 15 in the pouring channel 12, and a hole sealing bolt 23 for sealing the injection hole 212 is screwed on the injection hole 212; when the inspection well 1 is preset, the reserved holes 11 are formed, meanwhile, the pouring channels 12 are formed in advance, the preset sleeve 2 is attached to the reserved holes 11, the inserting rods 22 are inserted into the pouring channels 12 at the same time, then the pouring channels 12 are poured and sealed again through the pouring holes 212, at the moment, the concrete layer II 15 poured through the pouring channels 12 is fixedly connected with the inserting rods 22, fastening effects are formed on the prefabricated sleeve, the installation stability of the preset sleeve 2 is further improved, after the pouring channels 12 are filled and played by constructors, the pouring holes 212 are sealed by the hole sealing bolts 23, the sealing performance of the positions of the pouring holes 212 is improved, and reduction of water seepage to the inside of the preset sleeve 2 is facilitated.
Referring to fig. 1 and 2, a first seal ring 14 with an L-shaped cross section is arranged in the first circumferential groove 13, the first seal ring 14 is respectively attached to the outer circumferential groove wall and the groove bottom wall of the first circumferential groove 13, when the first extension ring 21 is arranged in the first circumferential groove 13, the first seal ring 14 is respectively attached to the groove wall of the first circumferential groove 13 and the first extension ring 21, a second seal ring 24 with an L-shaped cross section is arranged on the surface of the second extension ring 31 facing the second circumferential groove 211, the second seal ring 24 is respectively attached to the outer circumferential groove wall and the groove bottom wall of the second circumferential groove 211, and when the second extension ring 31 is arranged in the second circumferential groove 211, the second seal ring 24 is attached to the second circumferential groove 211; the first sealing ring 14 is favorable for further improving the sealing performance between the first circumferential groove 13 and the first extension ring 21, the water seepage problem of the position, attached to the first circumferential groove 13, of the first extension ring 21 in the use process is reduced, meanwhile, the second sealing ring 24 is favorable for further improving the sealing performance between the second extension ring 31 and the second circumferential groove 211, and the water seepage problem of the position, attached to the second circumferential groove 211, of the second extension ring 31 in the use process is reduced.
Referring to fig. 1, a plurality of strengthening rings 33 are sleeved on the outer wall of the preset pipe joint 3, and the strengthening rings 33 are uniformly arranged along the axial direction of the preset pipe joint 3; the reinforcing rings 33 enhance the capability of the outer peripheral wall of the preset pipe joint 3 to resist tensile deformation and compressive deformation and enhance the structural strength of the preset pipe joint 3, and after the reinforcing rings 33 are fixedly connected with the poured concrete in the pouring cavity 4, a multi-point fixing structure for the preset pipe joint 3 is formed, so that the connection stability of the preset pipe joint 3 after pouring is further enhanced.
Referring to fig. 1, a water-swelling water stop ring 34 is fixedly sleeved on the outer peripheral wall of the preset pipe joint 3, the water-swelling water stop ring 34 is attached to the preset sleeve 2 and one end of the preset pipe joint 3 away from the inspection well 1, and the water-swelling water stop ring 34 abuts against the inner wall of the preset sleeve 2; the water swelling seal ring 34 is added on the outer peripheral wall of the preset pipe joint 3 as a sealing seal part, when water seeps into the preset pipe joint 3 and the preset sleeve 2, the water swelling seal ring 34 swells to seal water when meeting water, and the sealing effect between the preset pipe joint 3 and the preset sleeve 2 is enhanced.
The implementation principle of the embodiment is as follows: when a constructor prefabricates the inspection well 1, a reserved hole 11 is formed in advance, a first circumferential groove 13 is formed in the periphery of the reserved hole 11, a plurality of pouring channels 12 penetrate through the outer circumferential wall of the reserved hole 11, when the preset sleeve 2 is placed in the reserved hole 11, a plurality of inserting rods 22 are inserted into the pouring channels 12, a first extension ring 21 is embedded into the first circumferential groove 13, the first extension ring 21 is aligned with the pouring holes 212 and the pouring channels 12, a second concrete layer 15 is poured to fill the pouring channels 12, then the pouring holes 212 are sealed through hole sealing bolts 23, a second extension ring 31 is embedded into a second circumferential groove 211 when the preset pipe joint 3 is installed, a second concrete layer 15 is poured from a pouring opening 32 to fill the pouring cavity 4, and therefore a fixed sealing structure is formed, and after the installation is completed, the drain pipe 5 can be screwed through.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a stagnant water structure for connecting drainage pipe and inspection shaft which characterized in that: the inspection well comprises an inspection well (1) provided with a reserved hole (11), wherein a first circumferential groove (13) is formed in the outer circumferential wall of the reserved hole (11) on the inner wall of the inspection well (1), a preset sleeve (2) is arranged in the reserved hole (11), a first extension ring (21) attached to the first circumferential groove (13) is fixed on the preset sleeve (2), a preset pipe joint (3) is arranged in the preset sleeve (2), a second extension ring (31) is fixed on the outer circumferential wall of one end, facing the inside of the inspection well (1), of the preset pipe joint (3), and a second circumferential groove (211) for attaching the second extension ring (31) is formed in the end face, facing the inside of the inspection well (1), of the first extension ring (21);
a pouring cavity (4) is formed between the outer peripheral wall of the preset pipe joint (3) and the inner peripheral wall of the preset sleeve (2), and a pouring opening (32) for pouring concrete into the pouring cavity (4) is formed in the surface, facing the inside of the inspection well (1), of the second extension ring (31).
2. The water stopping structure for connecting a drainage pipeline with an inspection well according to claim 1, wherein: the reserved hole (11) is horn-shaped, and the opening size of the reserved hole (11) is reduced from one side of the inner wall of the inspection well (1) to the outer wall of the inspection well (1);
the outer wall of the preset sleeve (2) is attached to the inner wall of the reserved hole (11), a plurality of inserting rods (22) inserted into the inspection well (1) are fixed to the outer pipe wall of the preset sleeve (2), a pouring channel (12) penetrating through the inner wall and the outer wall of the inspection well (1) is formed in the inspection well (1), an injection hole (212) communicated with the pouring channel (12) is formed in the first extension ring (21), and one end, far away from the preset sleeve (2), of each inserting rod (22) extends into the pouring channel (12).
3. The water stopping structure for connecting a drainage pipeline with an inspection well as claimed in claim 2, wherein: and a hole sealing bolt (23) is screwed on the injection hole (212) in a threaded manner.
4. The water stopping structure for connecting a drainage pipeline with an inspection well as claimed in claim 2, wherein: and a first sealing ring (14) is arranged in the first circumferential groove (13), and the first sealing ring (14) is tightly attached to the wall of the first circumferential groove (13) and the first extension ring (21) respectively.
5. The water stopping structure for connecting a drainage pipeline with an inspection well according to claim 1, wherein: the outer wall of the preset pipe joint (3) is fixedly sleeved with a reinforcing ring (33), and the reinforcing ring (33) is axially provided with a plurality of reinforcing rings along the preset pipe joint (3).
6. The water stopping structure for connecting a drainage pipeline with an inspection well according to claim 5, wherein: the outer peripheral wall of the preset pipe joint (3) is sleeved with a water-swelling water stop ring (34), and the water-swelling water stop ring (34) is abutted to the inner pipe wall of the preset sleeve pipe (2).
7. The water stopping structure for connecting a drainage pipeline with an inspection well according to claim 1, wherein: and a second sealing ring (24) is arranged on the surface of the second extension ring (31) facing the second circumferential groove (211).
8. The water stopping structure for connecting a drainage pipeline with an inspection well according to claim 1, wherein: the inner wall of the preset pipe joint (3) is provided with an internal thread (35) for screwing the drain pipe (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020963799.5U CN212453000U (en) | 2020-05-29 | 2020-05-29 | Water stop structure for connecting drainage pipeline and inspection well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020963799.5U CN212453000U (en) | 2020-05-29 | 2020-05-29 | Water stop structure for connecting drainage pipeline and inspection well |
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| Publication Number | Publication Date |
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| CN212453000U true CN212453000U (en) | 2021-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020963799.5U Active CN212453000U (en) | 2020-05-29 | 2020-05-29 | Water stop structure for connecting drainage pipeline and inspection well |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113818540A (en) * | 2021-09-27 | 2021-12-21 | 郑州一建集团有限公司 | Prefabricated inspection well and concrete pipeline connecting device and connecting process |
-
2020
- 2020-05-29 CN CN202020963799.5U patent/CN212453000U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113818540A (en) * | 2021-09-27 | 2021-12-21 | 郑州一建集团有限公司 | Prefabricated inspection well and concrete pipeline connecting device and connecting process |
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Address after: No.18 Xiangrong Road, Taixing City Industrial Park, Taizhou City, Jiangsu Province 225300 Patentee after: Jiangsu Dalongxin Construction Group Co.,Ltd. Address before: 225300 room 108, building 10, rongkeyuan, Huangqiao Town, Taixing City, Taizhou City, Jiangsu Province Patentee before: Jiangsu Dalongxin Construction Group Co.,Ltd. |
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Effective date of registration: 20260709 Granted publication date: 20210202 |
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