CN203891899U - Hollow filling-type rubber gasket - Google Patents

Hollow filling-type rubber gasket Download PDF

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Publication number
CN203891899U
CN203891899U CN201420165117.0U CN201420165117U CN203891899U CN 203891899 U CN203891899 U CN 203891899U CN 201420165117 U CN201420165117 U CN 201420165117U CN 203891899 U CN203891899 U CN 203891899U
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CN
China
Prior art keywords
sealing gasket
sealing
hollow
gasket
type rubber
Prior art date
Application number
CN201420165117.0U
Other languages
Chinese (zh)
Inventor
杨秀仁
彭迅
钟元
郭德友
李红旺
黄美群
王臣
杨明
丁德云
丛敏
李莉
高秀岩
Original Assignee
北京城建设计发展集团股份有限公司
江阴海达橡塑股份有限公司
长春市地铁有限责任公司
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Publication date
Application filed by 北京城建设计发展集团股份有限公司, 江阴海达橡塑股份有限公司, 长春市地铁有限责任公司 filed Critical 北京城建设计发展集团股份有限公司
Priority to CN201420165117.0U priority Critical patent/CN203891899U/en
Application granted granted Critical
Publication of CN203891899U publication Critical patent/CN203891899U/en

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Abstract

A hollow filling-type rubber gasket comprises a hollow strip-shaped sealing gasket body, and the side wall of the sealing gasket body is provided with a grouting or inflating tube communicated with a cavity inside the sealing gasket body. The cross section of the inflated sealing gasket body is in a rectangular, trapezoid, round or oval shape. The sealing gasket body and the grouting or inflating tube are made of a rubber material or a composite material and are integrally formed through extrusion and vulcanization. The beneficial effects of the hollow filling-type rubber gasket are that air in the hollow sealing gasket is extracted before a prefabricated member is spliced and is fully hidden in a groove, thereby avoiding damages to the sealing gasket during construction and the frictional force between the conventional sealing gaskets, and facilitating the realization of rapid splicing of the members; no external forces are required for compression, and the assembling construction is simple and convenient; the water stop pressure of the sealing gasket is controllable, so the water stop effect is excellent; the resistance to structural distortions is strong; and later repressing can be carried out to strengthen the later waterproof effect.

Description

Hollow can fill-type rubber gasket

Technical field

The utility model relates to underground structrue engineering technical field, and relating in particular to a kind of Novel hollow for prefabricated assembled member seam waterproof can fill-type rubber gasket.

Background technology

Prefabricated assembled underground structure is normal adopted technology in current underground engineering construction, wherein especially take that to adopt the pipe-plate lining structure of shield construction be main application direction.Prefabricated costruction has that liner structure quality is good, speed of application is fast, to plurality of advantages such as ambient influnence are little.But fabricated construction because of the assembled seam of its structure many, carry out seam waterproof sealing and just seem very important.

The seam waterproof of assembling underground structure, adopts rubber waterproof sealing mat conventionally, and its sealing principle is by the external world, to apply active force to make the compressed object that reaches hermetic seal of rubber gasket.For the tunnel lining of employing shield construction, shield machine jack can provide enough active forces to liner joint when advancing, and compressing rubber sealing mat reaches sealing object; Prefbricated tunnel lining for other non-shield constructions, because there is not enough compressive forcees of similar shield force in construction assembling process, the compression of rubber gasket just need to adopt special device and means that external force (utilize prestressed cable stretch-draw, utilize jack external force to hold out against etc.) is provided, flow chart is complicated, and speed of application is slow.

On the other hand, when adopting traditional rubber gasket, sealing mat must protrude the certain height in prefabricated units surface, at member, assemble in process in place, especially for adopting multi-direction movement member in place, in the assembled process of rubber pad of protruding, there is the phenomenon of fricting shearing destruction, affect efficiency and the assembly quality of assembling work simultaneously.

The rubber gasket that protrudes component surface in order to solve " be in the way " and work progress in need the problem of external force compressing rubber sealing mat, the present invention proposes a kind of " hollow can fill-type rubber gasket ", can overcome the problem that traditional passive compression sealing mat exists.

Utility model content

The purpose of this utility model is to provide a kind of hollow can fill-type rubber gasket, and sealing pad can form active pressure by the method to its inner hollow part pressure injection packing material after prefabricated units have assembled, and reach the object of hermetic seal.

Traditional underground structure seam adopts hydro-expansive rubber to carry out waterproof, and water-swellable sealing pressure is limited.The present invention can be used for replacing hydro-expansive rubber sealing mat, by active pressure, provides better waterproof sealing effect.

For achieving the above object, the utility model is taked following technical scheme:

Hollow can a fill-type rubber gasket, and it includes the sealing mat body of the strip of a hollow, is provided with the slip casting or the gas tube that communicate with sealing pad body internal cavity on the sidewall of sealing pad body.

After the inflation of described sealing mat body, section is rectangle, trapezoidal, circle or elliptical shape.

Described sealing mat body and slip casting or gas tube adopt quality of rubber materials or composite material by extruding, to vulcanize one-body molded.

The beneficial effects of the utility model are:

(1) air in hollow sealing pad is extracted out before splicing prefabricated components, sealing mat is hidden in groove completely, avoided in construction the damage of sealing mat and adopted the frictional force between conventional seals pad, be conducive to implementation structure quick-assembling simultaneously;

(2) without powerful external force, compress, assembling construction is easier;

(3) the sealing pressure of sealing mat is controlled, and stagnant water effect is better;

(4) ability of anti-malformation is strong;

(5) can the later stage supplement pressurization, carry out the strengthening of later stage waterproof effect.

Accompanying drawing explanation

Fig. 1 is scheme of installation of the present utility model.

Fig. 2 is slip casting or gas tube schematic diagram.

Fig. 3 is the utility model pressurization schematic diagram.

Drawing reference numeral:

1, sealing mat body;

2, fabricated construction;

3, groove;

4, slip casting or gas tube;

The specific embodiment

Shown in Fig. 1, Fig. 2, Fig. 3: a kind of hollow can fill-type rubber gasket, and it includes the sealing mat body 1 of the strip of a hollow, is provided with the slip casting or the gas tube 4 that communicate with sealing pad body internal cavity on the sidewall of sealing pad body 1.

After the inflation of described sealing mat body 1, section is rectangle, trapezoidal, circle or elliptical shape.

Described sealing mat body 1 and slip casting or gas tube 4 adopt quality of rubber materials or composite material by extruding, to vulcanize one-body molded.

Sealing mat body adopts rubber-like material, be made into and need the middle part of shape with the rubber gasket of cavity, sealing pad is installed (pasting or other modes) in the reserved special-purpose groove of prefabricated units, after prefabricated units assembling, to sealing mat cavity with certain pressure pressure injection packing material, make its expansion and compression, reach waterstop sealing object;

Sealing mat body adopts quality of rubber materials, composite material by extruding sulfidization molding, and according to actual demands of engineering, is made into the ring frame of definite shape;

The form of fracture that can fill sealing mat can be rectangle, trapezoidal, can be also circular other shapes that wait; Its wall thickness is determined according to actual stuffing pressure, compression performance etc.;

At sealing mat, near member preformed groove bottom position, packing material Grouting Pipe or gas tube are set, its quantity and position are determined as required;

Connecting portion, Grouting Pipe or the gas tube of gasket ring frame rotation angle position, Grouting Pipe or gas tube should be strengthened processing, and Grouting Pipe or gas tube should adopt reinforcement material strengthening, prevent deformation failure under high pressure;

Prefabricated units should be reserved the groove of definite shape at the position that sealing mat is installed, and at the position of drawing Grouting Pipe or gas tube, should establish reserving hole channel;

After gasket ring frame installs on prefabricated units, assembled before, should extract the air of sealing mat cavity out, the degree of finding time should be positioned at reserved groove in any case completely with sealing mat body, does not protrude surface;

After splicing prefabricated components completes, by Grouting Pipe, in sealing mat, inject packing material, injection pressure is determined as required.Injection completes rear enclosed inlet.In using from now on, also can open at any time as required inlet and supplement injection, intensified waterproof effect;

Injection material can be gas, liquid or other materials, also can inject the material that the later stage has expansion character;

As adopt the mode of injecting gas, gas pressure keeping system should be set simultaneously, in case pressure diminishes and affects sealing performance after leak-stopping gas;

Sealing means of the present utility model, except being applied to fabricated construction, also can be applicable to the seam waterproof sealing of other underground structures.

By reference to the accompanying drawings, the specific embodiment of the present utility model is illustrated as follows:

(1) hollow can first vacuumize before the use of fill-type rubber gasket, in the interior stickup of groove 3 (shown in Figure 1) of fabricated construction 2.

(2) in fabricated construction 2 inside, stay and establish duct (not shown), draw slip casting or gas tube 4.

(3) structure is carried out slip casting after in place or inflation reaches predetermined pressure, sealing.

The above is preferred embodiment of the present utility model and the know-why used thereof; for a person skilled in the art; in the situation that not deviating from spirit and scope of the present utility model; the apparent changes such as any equivalent transformation based on technical solutions of the utility model basis, simple replacement, within all belonging to the utility model protection domain.

Claims (3)

1. hollow can a fill-type rubber gasket, it is characterized in that: it includes the sealing mat body of the strip of a hollow, is provided with the slip casting or the gas tube that communicate with sealing pad body internal cavity on the sidewall of sealing pad body.
2. hollow according to claim 1 can fill-type rubber gasket, it is characterized in that: after the inflation of described sealing mat body, section is rectangle, trapezoidal, circle or elliptical shape.
3. hollow according to claim 1 and 2 can fill-type rubber gasket, it is characterized in that: described sealing mat body and slip casting or gas tube adopt quality of rubber materials or composite material by extruding, to vulcanize one-body molded.
CN201420165117.0U 2014-04-04 2014-04-04 Hollow filling-type rubber gasket CN203891899U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420165117.0U CN203891899U (en) 2014-04-04 2014-04-04 Hollow filling-type rubber gasket

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420165117.0U CN203891899U (en) 2014-04-04 2014-04-04 Hollow filling-type rubber gasket

Publications (1)

Publication Number Publication Date
CN203891899U true CN203891899U (en) 2014-10-22

Family

ID=51718315

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420165117.0U CN203891899U (en) 2014-04-04 2014-04-04 Hollow filling-type rubber gasket

Country Status (1)

Country Link
CN (1) CN203891899U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104879201A (en) * 2015-04-11 2015-09-02 成都陵川特种工业有限责任公司 Device for ensuring tightness of exhaust manifold of engine
CN105525928A (en) * 2014-09-30 2016-04-27 中国铁建大桥工程局集团有限公司 Construction method of sealing ring of duct piece wall of shield inclined shaft
CN106499415A (en) * 2015-09-08 2017-03-15 深圳市城市优筑科技有限公司 A kind of flashing member of Subway Tunnel duct pieces of shield tunnel and method
CN109958146A (en) * 2019-04-17 2019-07-02 中国铁路设计集团有限公司 A kind of assembled underground structure prefabricated components seam crossing hermetic seal bar capsule

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105525928A (en) * 2014-09-30 2016-04-27 中国铁建大桥工程局集团有限公司 Construction method of sealing ring of duct piece wall of shield inclined shaft
CN105525928B (en) * 2014-09-30 2019-12-10 中国铁建大桥工程局集团有限公司 Construction method of shield inclined shaft segment wall rear plugging ring
CN104879201A (en) * 2015-04-11 2015-09-02 成都陵川特种工业有限责任公司 Device for ensuring tightness of exhaust manifold of engine
CN106499415A (en) * 2015-09-08 2017-03-15 深圳市城市优筑科技有限公司 A kind of flashing member of Subway Tunnel duct pieces of shield tunnel and method
CN106499415B (en) * 2015-09-08 2019-11-05 深圳蓝盾控股有限公司 A kind of flashing member and method of Subway Tunnel duct pieces of shield tunnel
CN109958146A (en) * 2019-04-17 2019-07-02 中国铁路设计集团有限公司 A kind of assembled underground structure prefabricated components seam crossing hermetic seal bar capsule

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