CN203296069U

CN203296069U - Round precast concrete inspection well

Info

Publication number: CN203296069U
Application number: CN201320341270XU
Authority: CN
Inventors: 陈晓飞; 陈程
Original assignee: ZHONGSHAN JIANHUA CONCRETE PILE CO Ltd
Current assignee: ZHONGSHAN JIANHUA CONCRETE PILE CO Ltd
Priority date: 2013-06-15
Filing date: 2013-06-15
Publication date: 2013-11-20
Anticipated expiration: 2023-06-15

Abstract

Provided is a round precast concrete inspection well. The round precast concrete inspection well comprises a well chamber, a transition ring and a crib ring, wherein the transition ring and the crib ring are pipes with holes, a well lid covers the crib ring, the well chamber, the transition ring and the crib ring are of a precast reinforced concrete pipe body structure, a plurality of layers of steel pipe sets are arranged in the well chamber, the transition ring and the crib ring in advance, each layer of steel pipe sets comprises at least two steel pipes, a plurality of steps which are inserted into the steel pipes respectively are arranged in an inspection chamber of the round precast concrete inspection well, the end, inserted into each steel pipe, of each step serves as a plug pin, the other end of each step serves as an extending arm, and a plurality of connecting holes are formed in the well chamber. Due to the fact that components of the round precast concrete inspection well are prefabricated, and are directly assembled when being used, assembly construction of a pipeline is achieved, the construction progress of an inspection well channel is improved, strength is high, stress tolerance is good, durability is good, the service life is long, safety is good, a red-brick mortar structure is omitted, and the surface soil resources are greatly saved; due to the facts that overall pouring is carried out on the well chamber, and sealing installation is carried out between the well chamber and the underground pipeline, pollution caused by sewage to underground water is avoided.

Description

A kind of precast concrete circular inspection well

[technical field]

The utility model relates to municipal concrete duct engineering, relate in particular to can make regular check in the part that the underground pipeline engineering pipeline connects, precast concrete circular inspection well that clean and dredging or down-hole operation or blowdown are used.

[background technology]

Manhole is located at crossing of pipe duct or turning point usually, and the caliber of pipe duct, the gradient, elevation change place separated by a distancely on the straight line pipeline section in addition also must arrange manhole, and its effect one is can collect swimmingly and transfer current, and the 2nd, be convenient to maintenance work.Existing manhole is generally " brick well ", and it is mainly built and formed by common brick, cement and steel ladder, has simple in structure, lower-cost advantage.But " brick well " existing problems are more: the common brick of mainly being fired by clay due to it is built and is formed, mortar leakiness phenomenon between gap easily appears, sedimentation just easily occurs and subside the one or two years after general well body builds up, cause Uneven road, large, the long construction period of maintenance activity face, integrated maintenance high in cost of production shortcoming in addition, to vehicle pass-through and citizens' activities, bring very big inconvenience, cause a lot of difficulties also for municipal administration maintenance department; Moreover, during baking red bricks, need a large amount of table soil resources that consume, do not meet the requirement of construction " economy type, environment-friendly type " society; In addition, for as city, checking the cat ladder of the ancillary facility of hoistway, for a long time, the cat ladder material adopts reinforcement fabrication always, but the traditional metal cat ladder is under many severe environmental conditions, occasions such as inspection shaft, tunnel, chemical enterprise, rainy humidity, the very easily corrosion of metal step, safety is used in impact, and application life is also shorter.Therefore, we need a kind of convenient, durable, safe novel prefabricated concrete circular manhole of constructing well that replaces laying bricks to carry out underground work.

[utility model content]

The purpose of this utility model is to be to overcome the deficiencies in the prior art, and a kind of precast concrete circular inspection well of constructing convenient, durable, safe is provided.

In order to solve the technical problem of above-mentioned existence, the utility model is taked following technical proposals:

A kind of precast concrete circular inspection well, include the well chamber, transition ring and the walling crib that from bottom to top are fixedly connected sequentially, cylindrical and its upper opening in described well chamber, and there is the end below; The hole pipe of through hole is arranged in the middle of described transition ring and walling crib are, above described walling crib, be stamped a well lid; Described well chamber, transition ring and walling crib are the prefabricated reinforced concrete pipe structure; In described well chamber, transition ring and walling crib, all be preset with some floor steel pipe, every one deck steel pipe include at least two vertical with the body of manhole and lead to the steel pipe of inboard wall of tube body respectively, in the examination room of manhole, be provided with the step in several steel pipes that insert respectively every layer of steel pipe, that end that described step is inserted in steel pipe is pin, and its outer other end that is exposed in pipeline is semi-girder; On described well chamber, offer the connecting hole that several are used for connecting underground pipeline.

In the improvement project to above-mentioned a kind of precast concrete circular inspection well, described transition ring includes pit shaft and the well chamber top board that upper and lower sleeve is connected together.

In the improvement project to above-mentioned a kind of precast concrete circular inspection well, described transition ring is the conical circle that closes up.

In the improvement project to above-mentioned a kind of precast concrete circular inspection well, described steel pipe has two steel pipes, and the pin of described step has two and corresponding being inserted in two steel pipes of this steel pipe, and the semi-girder of described step is square.

In the improvement project to above-mentioned a kind of precast concrete circular inspection well, being connected can be between described well chamber and transition ring, between between transition ring and walling crib and well chamber and underground pipeline is rigidly connected or flexibly connects.

compared with prior art, the beneficial effects of the utility model are: 1) it is that the multilayer steel pipe is cast in each parts of manhole of steel concrete in advance, and by step one by one correspondence be arranged on steel pipe, just completed prefabricated with each parts of manhole of cat ladder, directly each component moving is assembled to building-site in use, replaced workman's laying bricks and the fixedly operation of steel ladder is installed at the scene, realize the pipeline prefabricated construction, improved the construction speed that checks hoistway, intensity is high, anti-pressure ability is strong, good endurance, long service life, safe, also abandoned the common brick mortar structure of commonly using now, greatly saved the table soil resource, secondly, the well chamber is by monobloc cast, and between well chamber and underground pipeline, sealing is installed, and has completely cut off the pollution of sewage to underground water.2) in the better embodiment of the utility model, step adopts and is difficult for being made by the glass-fiber reinforced thermo-setting material of sour corrosion, thus steadiness, safety and the application life that can greatly improve cat ladder.

Below in conjunction with the drawings and specific embodiments, the utility model is further illustrated:

[accompanying drawing explanation]

Fig. 1 is the structural representation of the utility model embodiment mono-;

Fig. 2 is the sectional view of A-A in Fig. 1;

Fig. 3 is the sectional view of B-B in Fig. 1;

Fig. 4 is the structural representation of the utility model embodiment bis-;

Fig. 5 is the sectional view of C-C in Fig. 3;

Fig. 6 is the utility model step schematic perspective view.

[specific embodiment]

The utility model is a kind of precast concrete circular inspection well, as shown in Fig. 1 to 5, includes the well chamber 10, transition ring 20 and the walling crib 30 that from bottom to top are fixedly connected sequentially, cylindrical and its upper opening in described well chamber 10, and there is the end below; The hole pipe of through hole is arranged in the middle of described transition ring 20 and walling crib 30 are, above described walling crib 30, be stamped a well lid 40; Described well chamber 10, transition ring 20 and walling crib 30 are the prefabricated reinforced concrete pipe structure; Described well chamber 10, transition ring 20 and walling crib 30 be interior all is preset with some floor steel pipe 60, every one deck steel pipe 60 include at least two vertical with the body of manhole and lead to the steel pipe of inboard wall of tube body respectively, in the examination room of manhole, be provided with the step 50 in several steel pipes that insert respectively every layer of steel pipe 60, that end that described step 50 is inserted in steel pipe is pin 51, and its outer other end that is exposed in pipeline is semi-girder 52; On described well chamber 10, offer the connecting hole 11 that several are used for connecting underground pipeline.

the utility model is directly manufactured by mould and equipment in factory, one group of group steel pipe first putting into the cage muscle and link together with the cage muscle by the manufacture requirement in making each mould of each parts of manhole, then in mould, put into the concrete material that stirs into (by sand, stone, cement, breeze, water reducing agent and water stir and form by certain ratio, be concrete) each parts of manhole are built to moulding, like this, cage muscle and steel pipe are cast in the concrete pipe of each parts, finally the pin of each step 50 51 is inserted and is fixed on corresponding every group of steel pipe, thereby formed all parts of steel concrete manhole, each parts of manhole can be by pre-formed one by one, also can be two or three integral prefabricated moulding of parts wherein connecting.Like this, when mounted, prefabricated steel concrete manhole parts are transported to building site, the underground pipeline of first connecting hole of well chamber 10 11 being aimed under vertical direction, again well chamber 10 vertically is placed in the hoistway of having accomplished fluently, then the connecting hole 11 on underground pipeline and well chamber 10 is connected and sealed, then according to erection sequence by transition ring 20 and walling crib 30 one by one abutting joint above well chamber 10, finally cover well lid 40 and get final product.The operating personnel, when using the utility model, first opens well lid 40, by cat ladder just can be freely up and down manhole complete Inspection, and can enter in underground pipeline the dredging work that completes by manhole.

as seen from the above, the utility model is that the multilayer steel pipe is cast in each parts of manhole of steel concrete in advance, and by step one by one correspondence be arranged on steel pipe 60, just completed prefabricated with each parts of manhole of cat ladder, directly each component moving is assembled to building-site in use, replaced workman's laying bricks and the fixedly operation of steel ladder is installed at the scene, realize the pipeline prefabricated construction, improved the construction speed that checks hoistway, intensity is high, anti-pressure ability is strong, good endurance, long service life, safe, also abandoned the common brick mortar structure of commonly using now, greatly saved the table soil resource, secondly, well chamber 10 is by monobloc cast, and between well chamber 10 and underground pipeline, sealing is installed, and has completely cut off the pollution of sewage to underground water.

In embodiment mono-, as shown in Figure 1, 2, described transition ring 20 includes pit shaft 22 and the well chamber top board 21 that upper and lower sleeve is connected together.At this moment, the utility model is the top plate type manhole.In embodiment bis-, as shown in Figure 3,4, described transition ring 20 is the conical circle 23 that closes up, and at this moment, the utility model is the closing in type manhole.

In embodiment mono-, two, as shown in Fig. 1 to 5, described steel pipe 60 has two steel pipes, and the pin 51 of described step 50 has two and corresponding being inserted in two steel pipes of this steel pipe 60; The semi-girder 52 of described step 50 is square, and during operation, the staff can pedal therein on the semi-girder 52 of a step, and just can climb downwards or upwards after with hand, grabbing the semi-girder 52 of a certain step in top.For convenient when climbing, improve safety, cat ladder can also be divided into two row, also can adopt spiralling form to be distributed in pipeline from top to bottom.

In addition, step 50 adopts and is difficult for being made by the glass-fiber reinforced thermo-setting material of sour corrosion, replaces the steel ladder of easy-to-rust, steadiness, safety and the application life of greatly having improved cat ladder.

In embodiment mono-, two, as shown in Figure 1,2,3, 4, being connected can be between described well chamber 10 and transition ring 20, between between transition ring and walling crib 10 and well chamber 10 and underground pipeline is rigidly connected or flexibly connects.Connection between each parts of manhole is adopted while being rigidly connected, should be first the contact surface of each unit interface be made to " dabbing " and process, then aim at and be linked and packed, during connection, can adopt cement mortar or polyurethane cement mortar filleting, side seams magma flat-joint pointing in interface, guarantee that mortar is full; When employing between each parts of manhole flexibly connects, generally adopt cushion rubber to carry out connecting components, at this moment, should be in place cushion rubber and guarantee the sealing of interface.

Although describe the utility model in detail with reference to top embodiment, but it will be apparent to one skilled in the art that by the disclosure, in the situation that and do not break away from principle of the present utility model and the spiritual scope that described claim limits, can make a variety of changes or revise the utility model.Therefore, the detailed description of disclosure embodiment only is used for explaining, rather than is used for limiting the utility model, but is defined by the subject-matter of the claims the scope of protection.

Claims

1. a precast concrete circular inspection well, is characterized in that, includes the well chamber, transition ring and the walling crib that from bottom to top are fixedly connected sequentially, cylindrical and its upper opening in described well chamber, and there is the end below; The hole pipe of through hole is arranged in the middle of described transition ring and walling crib are, above described walling crib, be stamped a well lid; Described well chamber, transition ring and walling crib are the prefabricated reinforced concrete pipe structure; In described well chamber, transition ring and walling crib, all be preset with some floor steel pipe, every one deck steel pipe include at least two vertical with the body of manhole and lead to the steel pipe of inboard wall of tube body respectively, in the examination room of manhole, be provided with the step in several steel pipes that insert respectively every layer of steel pipe, that end that described step is inserted in steel pipe is pin, and its outer other end that is exposed in pipeline is semi-girder; On described well chamber, offer the connecting hole that several are used for connecting underground pipeline.

2. a kind of precast concrete circular inspection well according to claim 1, is characterized in that, described transition ring includes pit shaft and the well chamber top board that upper and lower sleeve is connected together.

3. a kind of precast concrete circular inspection well according to claim 1, is characterized in that, described transition ring is the conical circle that closes up.

4. according to claim 1,2 or 3 described a kind of precast concrete circular inspection wells, it is characterized in that, described steel pipe has two steel pipes, and the pin of described step has two and corresponding being inserted in two steel pipes of this steel pipe, and the semi-girder of described step is square.

5. a kind of precast concrete circular inspection well of stating according to claim 4, is characterized in that, being connected can be between described well chamber and transition ring, between between transition ring and walling crib and well chamber and underground pipeline is rigidly connected or flexibly connects.