CN212175864U

CN212175864U - Prefabricated inspection well

Info

Publication number: CN212175864U
Application number: CN202020291920.4U
Authority: CN
Inventors: 邹欣; 龚悦; 范雅薇
Original assignee: Xi'an Thermal Planning And Design Institute Co ltd
Current assignee: Xi'an Thermal Planning And Design Institute Co ltd
Priority date: 2020-03-10
Filing date: 2020-03-10
Publication date: 2020-12-18
Anticipated expiration: 2030-03-10

Abstract

The utility model relates to a prefabricated inspection shaft, including digging pit in advance, setting up the well body in digging pit in advance and setting up the well lid seat in digging pit in advance, well lid seat upper cover has closed the well lid, a plurality of staple are worn to be equipped with in the perisporium of the well body by sliding, it is a plurality of to correspond on the perisporium of the well body the staple is provided with a plurality of sliding tubes, the sliding tube level sets up, the length of sliding tube is greater than the wall thickness of the well body, the staple nail is gone into the hole wall of digging pit in advance, the staple with be provided with fixing device between the well body, the utility model discloses have the effect that prevents that the inspection shaft from taking place to subside.

Description

Prefabricated inspection well

Technical Field

The utility model belongs to the technical field of municipal administration underground infrastructure's technique and specifically relates to a prefabricated inspection shaft is related to.

Background

The inspection well is used for the maintenance of power supply, water supply, drainage, pollution discharge, communication, cable television, gas pipes, street lamp lines and the like of urban underground infrastructure, is convenient to install, is generally arranged at a pipeline intersection, a turning part, a pipe diameter or gradient changing part and a straight pipe section at a certain distance, and is convenient for regular inspection of auxiliary structures.

Chinese patent with grant bulletin number CN205012448U discloses a municipal administration inspection shaft, including well lid body and pit shaft body, fixed surface installs the buffer board under the well lid body, and the well lid body is close to the vertical dado that is equipped with of both sides face department, the built-in billet of dado, dado adopt two sections to constitute, two be equipped with the link between the section, the built-in strengthening rib of link, strengthening rib top and bottom are connected with two sections respectively, the pit shaft body is located between two dado, and the built-in drain pipe of pit shaft body, drain pipe top pass buffer board and well lid body setting respectively. Above-mentioned technical scheme is through setting up the dado in the pit shaft body outside, protects the pit shaft body, is provided with the intensity of billet in order to strengthen the dado in the dado for this municipal administration inspection shaft has intensity height, can effectively prolong the life of inspection shaft.

Above-mentioned technical scheme has strengthened the intensity of this municipal inspection shaft through the dado, has prolonged the life of this municipal inspection shaft, but this inspection shaft weight increase easily takes place to subside after adding the dado.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can prevent that the inspection shaft from taking place the prefabricated inspection shaft that subsides to the not enough of prior art existence.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: the utility model provides a prefabricated inspection well, includes the pit of digging in advance, sets up the well body in the pit of digging in advance and sets up the well lid seat in the pit of digging in advance, well lid seat upper cover has closed the well lid, it wears to be equipped with a plurality of staples to slide on the perisporium of the well body, it is a plurality of to correspond on the perisporium of the well body the staple is provided with a plurality of slip pipes, the slip pipe level sets up, the length of slip pipe is greater than the wall thickness of the well body, the staple is nailed in the pit wall of digging in advance, the staple with be provided with fixing device between the slip pipe.

Through adopting above-mentioned technical scheme, the well body is packed into in the pre-digging pit after, installer from the well body inside with the staple go into the hole wall in the pre-digging pit, then use fixing device with staple and slip tube fixed connection, prescribe a limit to the position of staple, keep the staple in the soil around the well body, when the well body descends, the staple that is nailed into in the soil around will play the supporting role to the well body, prevent that the well body from sinking, and with the slip tube horizontal setting after, the slip tube plays the guide effect to the staple when the hole wall in the pre-digging pit is followed closely to the staple, make the staple be in the horizontality after being nailed into in the pre-digging pit, the staple of horizontality can play better anti-settling effect, the anti-settling to the well body has been realized like this.

The present invention may be further configured in a preferred embodiment as: the fixing device comprises a fixing cover which is detachably and fixedly arranged on the sliding pipe, and the fixing cover is positioned at one end of the sliding pipe in the well body.

Through adopting above-mentioned technical scheme, after the staple is followed closely the pithead of digging pit in advance, seal the one end that the slide tube is in the well body through fixed lid for the staple can not be because of receiving external force and retracting to in the well body, has improved the device's reliability like this.

The present invention may be further configured in a preferred embodiment as: the well cover seat comprises an anti-sinking ring and a matching cylinder arranged below the anti-sinking ring, the diameter of the matching cylinder is equal to the diameter of one end, close to the well cover, of the well body, and a first concrete layer is arranged in the pre-digging pit and corresponds to the well cover seat.

Through adopting above-mentioned technical scheme, after the well body installation is accomplished, will correspond the well lid seat and pour first concrete layer in digging pit in advance, place the well lid seat on first concrete layer before first concrete layer does not solidify, support by first concrete layer to preventing sinking the ring, so not only accomplished the fixed to the well lid seat, first concrete layer will play the effect of preventing subsiding to the well lid seat after solidifying in addition.

The present invention may be further configured in a preferred embodiment as: the anti-sinking ring is close to one side of the well body and is provided with a plurality of anti-sinking plates, the anti-sinking plates are positioned on the outer side of the matching barrel, and one end of the anti-sinking ring, which is far away from the anti-sinking ring, is obliquely arranged on the matching barrel.

Through adopting above-mentioned technical scheme, well lid seat is when placing first concrete layer, and in the anti-sinking board will insert first concrete layer, because the anti-sinking board is kept away from and is prevented that heavy ring one end deviates from a collocation section of thick bamboo slope setting, treats that first concrete layer solidifies the back, and first concrete layer will play the supporting role to a plurality of anti-sinking boards, has further improved this inspection shaft well lid seat's anti-settling property like this.

The present invention may be further configured in a preferred embodiment as: the well body is kept away from the fixed flange ring that is provided with of well lid one end inner wall, dig the pit bottom in advance and set up second concrete layer, the flange ring with second concrete layer fixed connection.

Through adopting above-mentioned technical scheme, set up the second concrete layer in the bottom of digging pit in advance, treat that the second concrete layer solidifies back with flange ring and second concrete layer fixed connection, make the second concrete layer support the well body, not only accomplished the installation to the well body like this, the second concrete layer further plays the effect of preventing subsiding to the well body moreover.

The present invention may be further configured in a preferred embodiment as: an expansion layer is arranged between the well body and the pre-dug pit.

Through adopting above-mentioned technical scheme, after the well body installation is accomplished, fill the inflation body between pre-digging pit and the well body, the inflation body will produce the extrusion to the periphery wall of the well body and the hole wall of pre-digging pit after absorbing the moisture in the soil and taking place the inflation, increase the well body and pre-digging the frictional force between the pit, certain anti-settling effect has been played to the well body like this, and simultaneously, the inflation body is tamped after self receives the extrusion after the inflation, compares that backfill soil is difficult for taking place the subsidence after meeting water, has improved the reliability after this inspection shaft installation is accomplished.

The present invention may be further configured in a preferred embodiment as: the expansion layer is 3:7 or 2:8 lime soil.

By adopting the technical scheme, the lime soil with the ratio of 3:7 or 2:8 is usually used as a pile body of the compaction pile, can expand after absorbing water in soil, and can be prepared by uniformly mixing lime with soil excavated in the process of digging a pre-dug pit according to a certain proportion, so that the material is low in price and the extrusion effect is good.

The present invention may be further configured in a preferred embodiment as: the well lid is in prevent the heavy in-ring, prevent that the heavy in-ring corresponds the well lid is provided with the support ring, and the support ring is located under the well lid, the well lid butt the support ring, support ring butt well lid one side is apart from the distance of well lid seat upper surface equals the thickness of well lid.

Through adopting above-mentioned technical scheme, for guaranteeing this well lid seat installation back, the upper surface of well lid seat and ground keep the parallel and level, are provided with the support ring under the well lid in the dust ring, and the well lid will butt to the support ring after putting into in the anti-sinking ring, because support ring butt well lid one side is apart from the distance of well lid seat upper surface equals the thickness of well lid, therefore the well lid is after the installation, the upper surface of well lid, the upper surface and the ground parallel and level of well lid seat.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the plurality of fixing nails support the well body after penetrating through the sliding pipe and nailing into the pit wall of the pre-dug pit, and when the well body has settlement, the plurality of fixing nails support the well body to prevent the well body from settling;

2. after the fixing nail is nailed into the pit wall of the pre-dug pit, one end of the sliding pipe in the well body is sealed through the fixing cover, so that the fixing nail cannot retract into the well body due to external force, and the reliability of the device is improved;

3. the first concrete layer and the second concrete layer respectively provide an installation foundation for the well cover seat and the well body and respectively play a role in preventing sedimentation for the well cover seat and the well body.

Drawings

FIG. 1 is a schematic view of the whole structure of the present invention in a half-section along a vertical plane;

fig. 2 is an enlarged schematic view of a portion a of fig. 1.

In the figure, 1, pre-digging a pit; 11. a first concrete layer; 12. a second concrete layer; 2. a well body; 21. fixing nails; 22. a sliding tube; 23. a fixed cover; 24. a flange ring; 3. a well cover seat; 31. a well cover; 32. an anti-sinking ring; 321. an anti-sinking plate; 322. a support ring; 33. matching the cylinders; 4. an intumescent layer.

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 prefabricated inspection well, including digging pit 1 in advance, set up the well body 2 and the well lid seat 3 of setting in digging pit 1 in advance, prevent being provided with support ring 322 in the heavy ring 32, support ring 322 is located well lid 31 under, well lid 31 butt support ring 322, and the distance of support ring 322 butt well lid 31 one side apart from 3 upper surfaces of well lid seat equals the thickness of well lid 31. In this embodiment, well lid 31 is articulated with well lid seat 3, and well lid 31 keeps away from it and is provided with the recess with the articulated one side of well lid seat 3, is provided with the handle in the recess, and well body 2, well lid seat 3 and well lid 31 all adopt nodular cast iron to cast into.

Referring to fig. 1, the well cover seat 3 includes an anti-sinking ring 32 and a matching cylinder 33 disposed below the anti-sinking ring 32, the diameter of the matching cylinder 33 is equal to the diameter of the well body 2 near one end of the well cover 31, and a first concrete layer 11 is disposed in the pre-pit 1 corresponding to the well cover seat 3. The anti-sinking ring 32 is provided with a plurality of anti-sinking plates 321 on one side close to the well body 2, the anti-sinking plates 321 are positioned on the outer side of the matching barrel 33, and one end of the anti-sinking plates 321 far away from the anti-sinking ring 32 is obliquely arranged away from the matching barrel 33. In this embodiment, the anti-sinking plates 321 are all arc-shaped plates, the anti-sinking plates 321 are located on a circumference formed by using the anti-sinking ring 32 as a circle center, and one end of the matching barrel 33 far away from the anti-sinking ring 32 is abutted to one end of the well body 2 close to the well cover seat 3 when the inspection well is installed.

Referring to fig. 1, an expansion layer 4 is provided between a well body 2 and a pre-dug pit 1. The expansion layer 4 is 3:7 or 2:8 lime soil.

Referring to fig. 1 and 2, a plurality of fixing nails 21 are slidably inserted into the circumferential wall of the well body 2, a plurality of sliding pipes 22 are horizontally arranged on the circumferential wall of the well body 2 corresponding to the fixing nails 21, the length of each sliding pipe 22 is greater than the wall thickness of the well body 2, the fixing nails 21 are nailed into the pit wall of the pre-dug pit 1, and a fixing device is arranged between each fixing nail 21 and each sliding pipe 22. In this embodiment, the staple 21 is provided with threely, and three staple 21 evenly sets up, and the sliding tube 22 is in 2 outside one ends of the well body and 2 periphery walls parallel arrangement of the well body, and the sliding tube 22 is in 2 inside one ends protruding settings of the well body.

Referring to fig. 1, the inner wall of one end, far away from the well lid 31, of the well body 2 is fixedly provided with a flange ring 24, the bottom of the pre-digging pit 1 is provided with a second concrete layer 12, and the flange ring 24 is fixedly connected with the second concrete layer 12. The fixing device comprises a fixing cover 23 which is detachably and fixedly arranged on the sliding tube 22, and the fixing cover 23 is positioned at one end of the sliding tube 22 in the well body 2. In this embodiment, the sliding tube 22 is provided with a thread on the outer peripheral wall of one end inside the well body 2, and the fixed cover 23 is in threaded connection with the sliding tube 22.

The implementation principle of the embodiment is as follows: when the manhole is installed, a second concrete layer 12 is poured at the bottom of a pre-dug pit 1, after the second concrete layer 12 is solidified, holes are formed in the second concrete layer 12 corresponding to bolt holes of a flange ring 24, the flange ring 24 is fixedly connected with the second concrete layer 12 through expansion screws, then a plurality of fixing nails 21 are respectively nailed into the pit wall of the pre-dug pit 1, a fixing cover 23 is connected to a sliding pipe 22 through threads to fix the fixing nails 21, then an expansion body is filled into a gap between the pit 2 and the pre-dug pit 1, lime soil with different proportions can be selected according to different water contents in the soil during construction, the lime soil can automatically absorb water in the soil to expand after the pit 2 is installed, the expanded lime soil can increase the friction force between the pit 2 and the lime soil to prevent the pit 2 from sinking, and after the lime soil is filled, and pouring a second concrete layer 12 in the pre-dug pit 1, placing the well cover seat 3 on the second concrete layer 12, enabling one end, far away from the well body 2, of the well cover seat 3 to be flush with the ground, and completing installation of the well body 2 after the first concrete layer is solidified. The first concrete layer 11 and the second concrete layer 12 are respectively used for preventing the well cover seat 3 and the well body 2 from settling, when the well body 2 settles, the well body 2 generates pressure on the fixing nails 21, and the fixing nails 21 exert force on the well body 2 to prevent the well body 2 from settling. When the device is used, the well lid 31 can enter the well body 2 by opening the well mouth, and the support ring 322 supports the well lid 31.

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

1. The utility model provides a prefabricated inspection shaft, includes pit (1), the well body (2) of setting in pit (1) in advance and well lid seat (3) of setting in pit (1) in advance, well lid seat (3) upper cover has well lid (31), its characterized in that: a plurality of fixing nails (21) are arranged on the peripheral wall of the well body (2) in a penetrating mode in a sliding mode, a plurality of sliding pipes (22) are arranged on the peripheral wall of the well body (2) corresponding to the fixing nails (21), the sliding pipes (22) are horizontally arranged, the length of each sliding pipe (22) is larger than the wall thickness of the well body (2), the fixing nails (21) are nailed into the pit wall of the pre-dug pit (1), and fixing devices are arranged between the fixing nails (21) and the sliding pipes (22).

2. A prefabricated manhole according to claim 1, wherein: the fixing device comprises a fixing cover (23) which is detachably and fixedly arranged on the sliding pipe (22), and the fixing cover (23) is positioned at one end, in the well body (2), of the sliding pipe (22).

3. A prefabricated manhole according to claim 1, wherein: well lid seat (3) are in including preventing heavy ring (32) and setting prevent a collocation section of thick bamboo (33) of heavy ring (32) below, the diameter of a collocation section of thick bamboo (33) equals well body (2) and is close the diameter of well lid (31) one end, correspond in the pre-pit digging (1) well lid seat (3) are provided with first concrete layer (11).

4. A prefabricated manhole according to claim 3, wherein: prevent heavy ring (32) and be close well body (2) one side is provided with prevents heavy board (321), prevent heavy board (321) and be located the collocation section of thick bamboo (33) outside, prevent heavy board (321) and keep away from prevent heavy ring (32) one end and deviate from collocation section of thick bamboo (33) slope setting.

5. A prefabricated manhole according to claim 1, wherein: well body (2) are kept away from fixed flange ring (24) that is provided with of well lid (31) one end inner wall, dig pit (1) bottom in advance and set up second concrete layer (12), flange ring (24) with second concrete layer (12) fixed connection.

6. A prefabricated manhole according to claim 1, wherein: an expansion layer (4) is arranged between the well body (2) and the pre-excavation pit (1).

7. A prefabricated manhole according to claim 6, wherein: the expansion layer (4) is lime soil with the ratio of 3:7 or 2: 8.

8. A prefabricated manhole according to claim 3, wherein: well lid (31) are in prevent sinking in ring (32), prevent corresponding in ring (32) that sinks well lid (31) are provided with support ring (322), and support ring (322) are located well lid (31) under, well lid (31) butt support ring (322), support ring (322) butt well lid (31) one side is apart from the distance of well lid seat (3) upper surface equals the thickness of well lid (31).