CN104019322A - Supporting device used for inspection well liner repair - Google Patents
Supporting device used for inspection well liner repair Download PDFInfo
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- CN104019322A CN104019322A CN201410236117.XA CN201410236117A CN104019322A CN 104019322 A CN104019322 A CN 104019322A CN 201410236117 A CN201410236117 A CN 201410236117A CN 104019322 A CN104019322 A CN 104019322A
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- Prior art keywords
- supporting
- inspection shaft
- piece
- supporting frame
- support device
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/10—Means for stopping flow from or in pipes or hoses
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
A supporting device used for inspection well liner repair is used for supporting a repair piece and comprises a blocking section portion and a supporting portion used for supporting the blocking section portion. The blocking section portion is a circular component; the supporting portion comprises a reinforcing piece, a longitudinal supporting piece, a transverse supporting piece and a supporting base used for supporting and fixing the transverse supporting piece, the reinforcing piece, the longitudinal supporting piece, the transverse supporting piece and the supporting base are sequentially arranged, the supporting base is arranged on the inner wall of an inspection well in a supporting mode and is connected with the transverse supporting piece through an inner spiral piece in a screwing mode, the distance between the inner spiral piece and the transverse supporting piece is adjustable, the end of the reinforcing piece is set to be telescopic, and the reinforcing piece is matched with an inner spiral structure between the supporting base and the transverse supporting piece through the telescopic end of the reinforcing piece, so that the whole supporting portion can be adjusted in a self-adaptive mode so as to be adapted to different pipe diameters, and the longitudinal supporting piece, and the transverse supporting piece and the supporting base can support the circular component together. The supporting device used for inspection well liner repair can be adapted to operations of inspection wells with different pipe diameters automatically, is simple in structure and convenient to use and saves operation cost.
Description
Technical field
The invention belongs to municipal drainage construction equipment field, relate in particular to a kind of inspection shaft liner reparation support device.
Background technique
In the past, when carrying out Urban Underground inspection shaft liner repairing construction, the mouth of pipe place generation being connected with inspection shaft when preventing that inspection shaft liner from repairing the still inner lining material in soft condition is caved in, and at pipeline inner spout, place builds brick wall one with fragment of brick, is used for supporting liner repair materials, need to use fragment of brick, cement, the materials such as yellow sand, will carry out the maintenance of 2-3 days time after puzzling, just can carry out the reparation of inspection shaft liner, after well to be checked repairs, remove.The fragment of brick of brick envelope use, cement, yellow sands etc. are disposable use all, and waste resource, produces again a large amount of constructional rubbishs after dismounting, befouling environment, brick envelope needs time maintenance, delays project progress.
If use air bag shutoff, during due to inspection shaft liner repairing construction, inner lining material produces chemical reaction, generates a large amount of heat, and high temperature can cause intracapsular pressure increase and may scorch air bag, causes air bag blast, and engineering accident occurs.
For this reason, a kind of device need to be provided in time, can in pipeline opening place peace, tear open fast, can play good support to inspection shaft liner repair materials again, both can repeatedly reuse, can be suitable for different tube diameters again, when inspection shaft needs liner to repair, use this support device, with respect to the brick end socket of tradition, support, can save time, save material, without constructional rubbish.Also can after installing sealing gasket additional, carry out low water level shutoff.
Application number is 201120331008.8, and name is called the model utility of " pipeline plug ", comprises capping, interior side's wrench, center-pole, right-hand thread silk braid, hinge, connecting rod, lock dog, left-hand thread silk braid.A kind of inspection shaft liner reparation that is arranged at the application of the member that it forms and member is completely different with the member of support device, and the occasion of using and the problem solving are different.
Summary of the invention
For overcoming the above problems, realize a kind of function of support of self adaption different tube diameters simultaneously, the invention provides a kind of inspection shaft liner reparation support device, its technological scheme is specific as follows:
An inspection shaft liner reparation support device, for supporting repair member, comprises the supporting portion of shutoff cross-section, support shutoff cross-section, it is characterized in that: described shutoff cross-section is round member (1);
Described supporting portion comprises the base for supporting of reinforcer, longitudinal bracing part, horizontal support piece and support fixed lateral supporting element,
Described round member is embedded in inspection shaft inwall, for support repair member,
Described reinforcer is fixed on round member, for strengthening affixed round member,
Described longitudinal bracing part is bolted on reinforcer,
Described horizontal support piece is bolted on longitudinal bracing part;
Described base for supporting (11) is supported on inspection shaft inwall, and by internal spiral part (12) distance adjustable be bolted on horizontal support piece;
Described reinforcer end is set to extension type;
Described reinforcer, by the internal spiral structure between extension type, cooperation base for supporting and the horizontal support piece of end, completes can self adaption regulating of supporting portion integral body, in order to adapt to different calibers;
Described longitudinal bracing part, horizontal support piece and base for supporting forms jointly to the jacking of round member and support.
According to a kind of inspection shaft liner reparation support device of the present invention, it is characterized in that: described reinforcer (2) is for being the pipe fitting of H type or diesis type; End at described H type or diesis type pipe fitting arranges extension member (13).
According to a kind of inspection shaft liner reparation support device of the present invention, it is characterized in that: described round member forms by a basic circle member and along a circle fan shape member of basic circle member setting, in the joint of described fan shape member and basic circle member, waist hole bolt shrinking structure is set, described fan shape member completes stretch radially relative with basic circle member by waist hole bolt shrinking structure, thus adaptive different caliber.
According to a kind of inspection shaft liner reparation support device of the present invention, it is characterized in that: described longitudinal bracing part consists of the first row supporting frame (3) being equally spaced, secondary series supporting frame (4) and the 3rd support (5) of being disbursed from the cost and expenses,
Described first row supporting frame and the 3rd support of being disbursed from the cost and expenses forms by two supporting frames,
Described secondary series supporting frame consists of three supporting frames.
According to a kind of inspection shaft liner reparation support device of the present invention, it is characterized in that: described base for supporting and inspection shaft inwall surface of contact are concave-convex shape roughened surface or goat's horn decorative pattern shape roughened surface.
According to a kind of inspection shaft liner reparation support device of the present invention, it is characterized in that:
Described horizontal support piece is fixing with one heart in same plane by three, and the supporting frame that isogonism distributes mutually forms, and the wherein longitudinally alignment setting of the secondary series supporting frame in supporting element of the first supporting frame (6), in order to fixing secondary series supporting frame;
The first end in the same way (9) of the second supporting frame (7) and the 3rd supporting frame (8) is in order to the first row supporting frame in fixed longitudinal supporting part;
Second end in the same way (10) of the second supporting frame and the 3rd supporting frame is in order to the support of being disbursed from the cost and expenses of the 3rd in fixed longitudinal supporting part.
According to a kind of inspection shaft liner reparation support device of the present invention, it is characterized in that: the periphery at described round member is provided with sealing gasket (14).
According to a kind of inspection shaft liner reparation support device of the present invention, it is characterized in that: described extension member and H type or diesis type pipe fitting end are pin joint.
According to a kind of inspection shaft liner reparation support device of the present invention, it is characterized in that: described waist hole bolt shrinking structure is that waist hole arranges longitudinal end, bolt with basic circle member and is arranged on fan shape member or bolt is arranged at the longitudinal end of basic circle member, and waist hole is arranged at one of two kinds of set-up modes on fan shape member.
A kind of inspection shaft liner reparation support device of the present invention, compactness is set, simple for structure, easy to operate, operation that can self adaption different tube diameters, has reduced the consumable quantity of different work situation, provides the operation of reliable in quality to guarantee, coordinate liner repair, the cost consuming time, that reduce whole activity chain that shortens whole activity chain drops into.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is use schematic diagram of the present invention;
Brick envelope holding state figure when Fig. 3 is the reparation of inspection shaft liner;
Non-matted state figure when Fig. 4 is the reparation of inspection shaft liner;
In figure, 1 is round member; 2 is reinforcer; 3 is first row supporting frame; 4 is secondary series supporting frame; 5 is the 3rd support of being disbursed from the cost and expenses; 6 is the first supporting frame; 7 is the second supporting frame; 8 is the 3rd supporting frame; 9 is the first end in the same way of the second supporting frame and the 3rd supporting frame; 10 is the second end in the same way; 11 is base for supporting; 12 is internal spiral part; 13 is extension member; 14 is sealing gasket.
Embodiment
Below, according to specification drawings and specific embodiments, to a kind of inspection shaft liner of the present invention, reparation is further described in detail with support device.
A kind of inspection shaft liner reparation support device as shown in Figure 1, 2, for supporting repair member, comprises the supporting portion of shutoff cross-section, support shutoff cross-section, and described shutoff cross-section is round member (1); Described supporting portion comprises reinforcer, longitudinal bracing part, horizontal support piece and supports the base for supporting of fixed lateral supporting element, described round member is embedded in inspection shaft inwall, for support repair member, described reinforcer is fixed on round member, be used for strengthening affixed round member, described longitudinal bracing part is bolted on reinforcer, and described horizontal support piece is bolted on longitudinal bracing part; Described base for supporting (11) is supported on inspection shaft inwall, and by internal spiral part (12) distance adjustable be bolted on horizontal support piece; Described reinforcer end is set to extension type; Described reinforcer, by the internal spiral structure between extension type, cooperation base for supporting and the horizontal support piece of end, completes can self adaption regulating of supporting portion integral body, in order to adapt to different calibers; Described longitudinal bracing part, horizontal support piece and base for supporting forms jointly to the jacking of round member and support.
Further, described reinforcer (2) is for being the pipe fitting of H type or diesis type; End at described H type or diesis type pipe fitting arranges extension member (13).
Further, described round member forms by a basic circle member and along a circle fan shape member of basic circle member setting, in the joint of described fan shape member and basic circle member, waist hole bolt shrinking structure is set, described fan shape member completes stretch radially relative with basic circle member by waist hole bolt shrinking structure, thus adaptive different caliber.
Further, described longitudinal bracing part consists of the first row supporting frame (3) being equally spaced, secondary series supporting frame (4) and the 3rd support (5) of being disbursed from the cost and expenses,
Described first row supporting frame and the 3rd support of being disbursed from the cost and expenses forms by two supporting frames,
Described secondary series supporting frame consists of three supporting frames.
Further, described base for supporting and inspection shaft inwall surface of contact are concave-convex shape roughened surface or goat's horn decorative pattern shape roughened surface.
Further, described horizontal support piece is fixing with one heart in same plane by three, and the supporting frame that mutually isogonism distributes forms, the wherein longitudinally alignment setting of the secondary series supporting frame in supporting element of the first supporting frame (6), in order to fixing secondary series supporting frame; The first end in the same way (9) of the second supporting frame (7) and the 3rd supporting frame (8) is in order to the first row supporting frame in fixed longitudinal supporting part; Second end in the same way (10) of the second supporting frame and the 3rd supporting frame is in order to the support of being disbursed from the cost and expenses of the 3rd in fixed longitudinal supporting part.
Further, the periphery at described round member is provided with sealing gasket (14).
Further, described extension member and H type or diesis type pipe fitting end are pin joint.
Further, described waist hole bolt shrinking structure is that waist hole arranges longitudinal end, bolt with basic circle member and is arranged on fan shape member or bolt is arranged at the longitudinal end of basic circle member, and waist hole is arranged at one of two kinds of set-up modes on fan shape member.
Selection and assembling
A kind of mouth of pipe place support device while repairing for underground inspection shaft liner, comprise adjustable supports, described adjustable supports is comprised of base and internal spiral member, described internal spiral member withstands cross-brace frame and base by interior rotation, make cross-brace frame be supported in inner-walls of duct, and bear the power to longitudinal bracing frame; On described cross-brace frame, be provided with connecting head, for connecting longitudinal bracing frame, the longitudinal bracing frame the other end, by being arranged on the connecting head on reinforcer, plays a supportive role to reinforcer.Reinforcer is connected with round member by screw, for fixed support round member.Round member is used for supporting liner well repair materials, and bears corresponding pressure.Described reinforcer is selected tubing member, and at the end of described tubing member pin joint extension member, described extension member coordinates internal spiral, controls can self adaption regulating of whole supporting frame, and the caliber operations different for adaptation need.
Preferably, preferably base and tube contacts face are roughened surface.
Preferably, base is of a size of 20cm*20cm square cambered surface.
Preferably, on described base, there are 4 silk holes.
Preferably, three cross-brace are put up 60 degree and are uniformly distributed support in pipeline.
Preferably, the material of internal spiral member is steel, stainless steel.
Most preferred, the material stainless steel of base.
Preferably, described longitudinal bracing frame and cross-brace frame are stainless steel diameter 50mm, the seamless steel pipe of thickness 3.6mm.
Preferably, longitudinal bracing frame length is 3 100cm, 2 95 centimeters, 2 90 centimeters.
Preferably, on described cross-brace frame, be welded with jointing.
Preferably, described reinforcer is 1 crossbeam, and 2 vertical beams are screwed into diesis type.
Preferably, the crossbeam of described reinforcer and vertical beam adopt the channel-section steel of 10#.
Preferably, the crossbeam of described reinforcer and vertical beam material are stainless steel.
Preferably, on the crossbeam of described reinforcer, weld 2 or 2 with upper binding head 4, on the vertical beam of described reinforcer, respectively weld 2 or 2 with upper binding head 4.
Preferably, two and above silk hole are set on the vertical beam of described reinforcer, for fixing round member.
Preferably, the quantity of described round member is 2-3.Specifically according to mouth of pipe size and well head size, select.
Preferably, being shaped as according to nozzle diameter of described round member got wide 2-3 piece.Because standard inspection shaft well head diameter is 630mm, baffle plate minimum width should be less than 630mm in theory, is specially the pipeline that caliber is more than or equal to DN800 and is less than or equal to DN1200, and baffle plate is 2, caliber is greater than DN1200 and is less than or equal to the pipeline of DN1800, and baffle plate is set to 3.
Preferably, described round member is fixed by screw and reinforcer.
Preferably, the material of described round member is timber, stainless steel, high strength heat resistant plastics, aluminum alloy, advanced composite material (ACM) etc.
Most preferred, described round member material is aluminium alloy plate.
Preferably, the thickness of described round member be 1 centimetre and more than.
Most preferred, the thickness of described round member is 1 centimetre.Suppose that pipe diameter is 1800mm, by 1 centimetre of calculating of thickness, wherein maximum baffle plate weight is about 27 kilograms.
Press 1.5 centimetres of thickness, weight is about 40.5 kilograms, is not easy to construct in inspection shaft.
Mouth of pipe place support device while repairing for underground inspection shaft liner provided by the invention, be applicable to 800mm-1800mm caliber fast, simple and easy shutoff, by workmen, in pipeline, device is assembled according to program, successively by cross-brace frame, base is laterally placed in the pipeline of 1 meter of left and right of the mouth of pipe, and by regulating adjustable jack that it is fixed in pipeline firmly, longitudinal bracing frame is connected on cross-brace frame, and by joint pinning, again reinforcer is connected with longitudinal bracing frame, and pinning, finally round member is fixed on reinforcer, make to be screwed.
Shutoff support device in mouth of pipe place while repairing for underground inspection shaft liner provided by the invention, this support device can carry out simple and easy shutoff support when inspection shaft is repaired, also can be in the situation that adding seal ring, shutoff when pressure when with pipeline and inspection shaft maintenance is not high, the temporary plugging when also can be used for new pipe and checking and accepting during the airtight experiment of flue gas, this support device is scattered to be assembled after putting into pipeline, after use finishes, disassemble again, be convenient to go into the well, and be not subject to the restriction of well head size.
Embodiment
Below by specific embodiment, also by reference to the accompanying drawings technological scheme of the present invention is elaborated:
Urban Underground inspection shaft is by well lid pit shaft, well chamber, and pipeline forms.In order to facilitate maintenance personnel to go into the well to related facility maintenance, management and maintenance, well head diameter is generally 630mm.
A kind of inspection shaft liner reparation support device of the present invention, for supporting repair member, comprises the supporting portion of shutoff cross-section, support shutoff cross-section, and described shutoff cross-section is round member (1); Described supporting portion comprises reinforcer, longitudinal bracing part, horizontal support piece and supports the base for supporting of fixed lateral supporting element, the round member that described diameter is adjustable is embedded in inspection shaft inwall, for support repair member, described reinforcer is fixed on round member, be used for strengthening affixed round member, described longitudinal bracing part is bolted on reinforcer, and described horizontal support piece is bolted on longitudinal bracing part; Described base for supporting (11) is supported on inspection shaft inwall, and by internal spiral part (12) distance adjustable be bolted on horizontal support piece, described longitudinal bracing part, horizontal support piece and base for supporting forms jointly to the jacking of round member and support.Reinforcer (6) is connected with round member (7) by screw, for fixed support round member (7).Round member (7) is for supporting liner well repair materials, and bears corresponding thrust.
In actual use, by regulating the internal spiral arranging on base for supporting, the dilatability that regulates the extension member of reinforcer end, regulate the basic circle member of bolt shrinking structure connection in waist hole on round member and the relative position of fan shape member simultaneously, reach can self adaption regulating of device integral body, thus adaptive different caliber operation.In the process regulating, the fan shape member in round member in maximum open configuration, has each other overlapping phenomenon between the fan shape member when not arriving maximum open configuration when arriving the outermost end in waist hole, through reality, uses and does not affect using effect.
After using shutoff support device of the present invention, when needs shutoff, workmen can hang in Jing Neiguankouchu by device assembly in batches, assembles, and completes shutoff, after well lining processing to be checked, by workmen, is removed, convenient and swift.Material therefor is the materials such as stainless steel and aluminum alloy, can reuse again.
As shown in Figure 3, while carrying out the reparation of inspection shaft liner in the situation that using brick shutoff to support, although can reach liner inspection shaft, repair requirement, but it is loaded down with trivial details to construct, consuming time longer, shutoff is approximately 0.5-1 days time, and to carry out the maintenance of 2-4 days time after shutoff is good, by the time plugging material intensity reaches after requirement, just can carry out the reparation of inspection shaft liner, after well to be checked repairs, removes.The fragment of brick of brick envelope use, cement, yellow sands etc. are disposable use all, and waste resource, produces again a large amount of constructional rubbishs after dismounting, befouling environment, brick envelope needs time maintenance, delays project progress.
As shown in Figure 4, while carrying out the reparation of inspection shaft liner in the situation that not using any shutoff to support, still the inner lining material in soft condition is under the effect of interior hydraulic pressure, enter the mouth of pipe, cause inner lining material distortion, do not reach reparation requirement, finally cause repairing construction failure.
After installing sealing gasket additional for low water level shutoff.Or the shutoff of smog experiment etc.
This device can meet 0.05mp pressure while repairing when inspection shaft is repaired.In Pu, Shanghai City road construction inspection shaft liner repairing construction, can meet the demands after tested.This device can meet 0-2 rice hydraulic pressure installing additional when setscrew not being installed after sealing gasket.After installing 2 dress setscrews additional, each spike can meet 0-5 rice hydraulic pressure.
A kind of inspection shaft liner reparation support device of the present invention, compactness is set, simple for structure, easy to operate, operation that can self adaption different tube diameters, has reduced the consumable quantity of different work situation, provides the operation of reliable in quality to guarantee, coordinate liner repair, the cost consuming time, that reduce whole activity chain that shortens whole activity chain drops into.
Claims (9)
1. an inspection shaft liner reparation support device, for supporting repair member, comprises the supporting portion of shutoff cross-section, support shutoff cross-section, it is characterized in that: described shutoff cross-section is round member (1);
Described supporting portion comprises the base for supporting of reinforcer, longitudinal bracing part, horizontal support piece and support fixed lateral supporting element,
Described round member is embedded in inspection shaft inwall, for support repair member,
Described reinforcer is fixed on round member, for strengthening affixed round member,
Described longitudinal bracing part is bolted on reinforcer,
Described horizontal support piece is bolted on longitudinal bracing part;
Described base for supporting (11) is supported on inspection shaft inwall, and by internal spiral part (12) distance adjustable be bolted on horizontal support piece;
Described reinforcer end is set to extension type;
Described reinforcer, by the internal spiral structure between extension type, cooperation base for supporting and the horizontal support piece of end, completes can self adaption regulating of supporting portion integral body, in order to adapt to different calibers;
Described longitudinal bracing part, horizontal support piece and base for supporting forms jointly to the jacking of round member and support.
2. a kind of inspection shaft liner reparation support device according to claim 1, is characterized in that: described reinforcer (2) is for being the pipe fitting of H type or diesis type; End at described H type or diesis type pipe fitting arranges extension member (13).
3. a kind of inspection shaft liner reparation support device according to claim 1, it is characterized in that: described round member forms by a basic circle member and along a circle fan shape member of basic circle member setting, in the joint of described fan shape member and basic circle member, waist hole bolt shrinking structure is set, described fan shape member completes stretch radially relative with basic circle member by waist hole bolt shrinking structure, thus adaptive different caliber.
4. a kind of inspection shaft liner reparation support device according to claim 1, is characterized in that: described longitudinal bracing part consists of the first row supporting frame (3) being equally spaced, secondary series supporting frame (4) and the 3rd support (5) of being disbursed from the cost and expenses,
Described first row supporting frame and the 3rd support of being disbursed from the cost and expenses forms by two supporting frames,
Described secondary series supporting frame consists of three supporting frames.
5. a kind of inspection shaft liner reparation support device according to claim 1, is characterized in that: described base for supporting and inspection shaft inwall surface of contact are concave-convex shape roughened surface or goat's horn decorative pattern shape roughened surface.
6. a kind of inspection shaft liner reparation support device according to claim 1, is characterized in that: described
Described horizontal support piece is fixing with one heart in same plane by three, and the supporting frame that isogonism distributes mutually forms, and the wherein longitudinally alignment setting of the secondary series supporting frame in supporting element of the first supporting frame (6), in order to fixing secondary series supporting frame;
The first end in the same way (9) of the second supporting frame (7) and the 3rd supporting frame (8) is in order to the first row supporting frame in fixed longitudinal supporting part;
Second end in the same way (10) of the second supporting frame and the 3rd supporting frame is in order to the support of being disbursed from the cost and expenses of the 3rd in fixed longitudinal supporting part.
7. a kind of inspection shaft liner reparation support device according to claim 1, is characterized in that: the periphery at described round member is provided with sealing gasket (14).
8. a kind of inspection shaft liner reparation support device according to claim 2, is characterized in that: described extension member and H type or diesis type pipe fitting end are pin joint.
9. a kind of inspection shaft liner reparation support device according to claim 3, it is characterized in that: described waist hole bolt shrinking structure is that waist hole arranges longitudinal end, bolt with basic circle member and is arranged on fan shape member or bolt is arranged at the longitudinal end of basic circle member, and waist hole is arranged at one of two kinds of set-up modes on fan shape member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410236117.XA CN104019322B (en) | 2014-05-30 | 2014-05-30 | A kind of inspection shaft liner reparation support device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410236117.XA CN104019322B (en) | 2014-05-30 | 2014-05-30 | A kind of inspection shaft liner reparation support device |
Publications (2)
| Publication Number | Publication Date |
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| CN104019322A true CN104019322A (en) | 2014-09-03 |
| CN104019322B CN104019322B (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410236117.XA Active CN104019322B (en) | 2014-05-30 | 2014-05-30 | A kind of inspection shaft liner reparation support device |
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| CN (1) | CN104019322B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107781520A (en) * | 2016-08-26 | 2018-03-09 | 广州市自来水工程公司 | A kind of arch active support for large-diameter steel pipe inner spout |
| CN113833928A (en) * | 2020-06-23 | 2021-12-24 | 杭州新名银实业投资有限公司 | Construction method for intercepting and sealing large-diameter deep-buried drain pipe |
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| CN2225590Y (en) * | 1995-06-09 | 1996-04-24 | 张良永 | Pipe line sealing-blocking device |
| CN202195231U (en) * | 2011-08-29 | 2012-04-18 | 中国石油化工股份有限公司胜利油田分公司孤岛采油厂 | Pipeline plugging device |
| CN203131314U (en) * | 2013-03-28 | 2013-08-14 | 中国水利水电第七工程局有限公司 | Quick non-welding plugging device of pipeline opening |
| GB2477162B (en) * | 2010-01-26 | 2014-03-26 | David James Powell | Pipe bypass device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4238131A (en) * | 1978-06-12 | 1980-12-09 | Cleveland Marvin G | Flushing T for heater hose |
| JPS6324135A (en) * | 1986-05-30 | 1988-02-01 | Kojima Seisakusho:Kk | Water fullness test plug for water discharging |
| CN2225590Y (en) * | 1995-06-09 | 1996-04-24 | 张良永 | Pipe line sealing-blocking device |
| GB2477162B (en) * | 2010-01-26 | 2014-03-26 | David James Powell | Pipe bypass device |
| CN202195231U (en) * | 2011-08-29 | 2012-04-18 | 中国石油化工股份有限公司胜利油田分公司孤岛采油厂 | Pipeline plugging device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107781520A (en) * | 2016-08-26 | 2018-03-09 | 广州市自来水工程公司 | A kind of arch active support for large-diameter steel pipe inner spout |
| CN113833928A (en) * | 2020-06-23 | 2021-12-24 | 杭州新名银实业投资有限公司 | Construction method for intercepting and sealing large-diameter deep-buried drain pipe |
| CN113833928B (en) * | 2020-06-23 | 2023-07-18 | 杭州新名银实业投资有限公司 | Construction method for closure sealing of large-caliber deep buried drain pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104019322B (en) | 2016-01-20 |
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