CN205421454U - Mediation sealing -in head of dredge - Google Patents
Mediation sealing -in head of dredge Download PDFInfo
- Publication number
- CN205421454U CN205421454U CN201620193856.XU CN201620193856U CN205421454U CN 205421454 U CN205421454 U CN 205421454U CN 201620193856 U CN201620193856 U CN 201620193856U CN 205421454 U CN205421454 U CN 205421454U
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- China
- Prior art keywords
- air inlet
- expansion sleeve
- air
- flange ring
- dredge
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Abstract
The utility model belongs to the technical field of the dredge technique and specifically relates to a mediation sealing -in head of dredge, the inflation cover of outside of tubes including inner tube and cover are established, the one end of inner tube is equipped with air inlet unit, the other end is equipped with air outlet means, the inflation cover, air inlet unit and air outlet means enclose the airtight space of a synthetic expansible, inner tube and airtight space intercommunication, be equipped with the one -way mechanism of admitting air between inner tube and the airtight space, air inlet unit is including leading to dirty trachea, connecting piece and the voltage limiting mechanism of leaking, the passageway with airtight space intercommunication has on the connecting piece, the voltage limiting leaks the mechanism and is used for hugging closely the dirty trachea of expert at the connecting piece, directly will dredge when using during the sealing -in head puts into the sewage pipe, then direct manipulation inflater or hydraulic connecting equipment are aerifyd it can, the one -way mechanism structure that admits air is simple, the production cost is low, after leading to dirty the completion, dirty trachea is led to in direct pulling just can accomplish losing heart to mediation sealing -in head, is convenient and fast for use.
Description
Technical field
This utility model relates to dredge technical field, the dredging sealing joint of a kind of dredge.
Background technology
Daily life often occurs the phenomenon of bowl sewage draining pipeline blockage, whereby, pipeline drainer has been increasingly becoming indispensable instrument in Modern Family's life, although the dredge for dredging pipeline is of a great variety in the market, but also can occur hiring the phenomenon of household services time and again, and the cost price of general household services is high, reason is that existing pipeline drainer there is also the problem that inconvenience solves, such as flat seal, narrow space, silt the composition character of thing up and operate the problems such as unhygienic, but although it is prohibitively expensive to also have some baroque special dredging devices to dredge its price effective.
Utility model content
The technical problems to be solved in the utility model is: complicated in order to solve dredge dredging weak effect structure in prior art, the problem that production cost is high, the dredging sealing joint of a kind of dredge is now provided, the dredging sealing joint of this dredge can connect inflator or other sources of the gas and hydraulic test uses, its simple in construction, low cost, and easy to operate, it is possible to effectively solve kitchen guarding and bathe the problem that even corner sewage conduct silts up.
This utility model solves its technical problem and be the technical scheme is that the dredging sealing joint of a kind of dredge, including inner tube and the expansion sleeve that is set in outside inner tube, one end of said inner tube is provided with air intake installation, the other end is provided with air-out apparatus, described expansion sleeve, air intake installation and air-out apparatus enclose a distensible confined space, said inner tube connects with described confined space, one-way air inlet mechanism it is provided with between said inner tube and described confined space, described air intake installation includes logical dirty trachea, connector and pressure limiting leak mechanism, there is on described connector the passage connected with confined space, described pressure limiting leaks mechanism for logical dirty trachea is close to described connector, realize described passage plugging, by connector, inner tube is connected with logical dirty trachea simultaneously.
Logical dirty trachea is connected by this programme with inflator, gas can enter confined space expansion sleeve therewith and expand, after the pressure in expansion sleeve reaches to a certain degree, pressure in inner tube can break through the stop at inner tube outlet, tamper in soil pipe is dredged, after the pressure in distensible confined space is adjacent to power more than logical dirty trachea to connector, logical dirty trachea separates with connector, and the gas in confined space can leak；After logical dirt completes, by staff, logical dirty trachea is left behind from connector, complete the aerofluxus of confined space, it is achieved quickly discharged by the gas in confined space.
Further, described connector includes air induction mast and the air inlet union joint with the first inner chamber, one end of described air induction mast is plugged in described expansion sleeve, described air inlet union joint is arranged in the first inner chamber of described air induction mast, one end of described air inlet union joint connects with said inner tube, the other end of described air inlet union joint has the first flange ring matched with described first inner chamber, offer for connecting confined space and the air inlet/outlet of the first inner chamber on described air induction mast, air vent is offered on described first flange ring, offer on described air induction mast and leak hole for connecting the extraneous pressure limiting with the first inner chamber, leak hole and air inlet/outlet of described pressure limiting lays respectively at the both sides of described first flange ring.When the pressure in distensible confined space is excessive; in order to protect expansion sleeve; logical dirty trachea separates with connector; gas in confined space can enter the first inner chamber from air inlet/outlet; then it is discharged into the external world from pressure limiting hole of leaking, after logical dirt terminates, opens dirty trachea from connector pull-up; gas in confined space can enter the first inner chamber from air inlet/outlet, and gas in the first inner chamber can leak hole from pressure release simultaneously and inner tube is discharged into the external world.
Further, described pressure limiting mechanism of leaking includes end cap and the second flange ring, described second flange ring matches with described first inner chamber, described second flange ring is fixed on the end, one end of described logical dirty trachea, described end cap lid is located at the end of described first inner chamber, the second described flange ring has magnetic, described end cap is ferromagnetism end cap, the first described flange ring has ferromagnetism, described second flange ring is close on described first flange ring, adsorbed on the first flange ring by magnetic second flange ring of tool, complete the closure to air vent.
Further, one end that described expansion sleeve is connected with described air induction mast is provided with first annular projection, the first lock tube ring it is arranged with outside described expansion sleeve, the side of described first lock tube ring is resisted against in described first annular projection, first the first lock tube ring is abutted against in first annular projection, tightly fit with air induction mast in the end making expansion sleeve, when air inlet in confined space, expansion sleeve expands therewith, expansion sleeve can extend, existence due to first annular projection, expansion sleeve is locked on air induction mast by the first lock tube ring, when realizing expansion sleeve expansion, between expansion sleeve with air induction mast, automatic-sealed is fixing is connected, it is the most severe that expansion sleeve expands, between expansion sleeve and air induction mast, sealing property is the best.
Unidirectional more expensive due in the market, in order to reduce the production cost of the dredging sealing joint of dredge, further, described one-way air inlet mechanism includes air inlet non-return seal, the position that described air inlet union joint is positioned in described first inner chamber offers some air inlets, described air inlet non-return seal is coated on described air inlet union joint and is positioned at the position of air inlet, when gas enters air inlet in air inlet union joint, air inlet non-return seal is positioned at the position of air inlet and can expand, then gas enters confined space from the gap between air inlet non-return seal and inlet pipe connection outer wall, otherwise the gas in confined space cannot be introduced into air inlet.
nullFurther，Described air-out apparatus includes the gas outlet having the second inner chamber first connecting tube intercommunicated with union joint of giving vent to anger and the second connecting tube，Described first connecting tube connects with said inner tube，Described union joint of giving vent to anger is fixed on gas outlet the one end near described expansion sleeve，The outer sleeve that one end is closed it is arranged with outside described second connecting tube，The inwall of described outer sleeve and the wall contacts of described second connecting tube，Described outer sleeve near described in the give vent to anger end, one end of union joint be fixed with the magnetic three-flange ring of tool，Described second inner chamber is provided with back-up ring，Described three-flange ring is being given vent to anger between union joint and back-up ring，Described back-up ring and described union joint of giving vent to anger are respectively provided with ferromagnetism，Some through holes are offered on the sidewall of described outer sleeve，The absorption of three-flange ring is being given vent to anger on union joint，During use，When the pressure in expansion sleeve more than three-flange ring and give vent to anger between union joint magnetic force time，Three-flange ring separates with union joint of giving vent to anger，Now outer sleeve and the second connecting tube stagger，Inner tube becomes conducting state，Now the tamper in soil pipe can be dredged，If soil pipe blocking is serious，Exceed the internal pressure of expansion sleeve，One-way air inlet mechanism on air inlet union joint can automatically open up air inlet in phase expansion sleeve，I.e. soil pipe blocking is the most serious，The pressure of expansion sleeve is the biggest，Frictional force between soil pipe and soil pipe inwall is the biggest.
Further, one end that described expansion sleeve is connected with described gas outlet is provided with the second annular protrusion, the second lock tube ring it is arranged with outside described expansion sleeve, the side of described second lock tube ring is resisted against on described second annular protrusion, when air inlet in confined space, expansion sleeve expands therewith, expansion sleeve can extend, existence due to the second annular protrusion, expansion sleeve is locked on gas outlet by the second lock tube ring, when realizing expansion sleeve expansion, between expansion sleeve with gas outlet, automatic-sealed is fixing is connected, it is the most severe that expansion sleeve expands, between expansion sleeve and gas outlet, sealing property is the best.
Further, described second flange ring is provided with gasket seal near the side of described first flange ring, and gasket seal is so that the second flange ring preferably blocks air vent.
In order to prevent expansion sleeve from deforming when expanding, having for moulding explosion-proof Elastic curtain layer of cloth in described expansion sleeve, Elastic curtain layer of cloth can improve the intensity of expansion sleeve simultaneously.
Further, on the outer wall of described air induction mast, the one end away from described expansion sleeve is provided with projection, and on the outer wall of described gas outlet, the one end away from described expansion sleeve is also equipped with projection.Air inlet connecting cylinder and connecting cylinder of giving vent to anger arrange projection, on the one hand swelling bag is made to form, between lock tube ring and projection, the trend pressed against when expanding, make the sealing property between the two ends of expansion sleeve and air induction mast and gas outlet more preferable, on the other hand so that expansion sleeve will not extend towards two ends when expanding but radially expand.
The beneficial effects of the utility model are: the confined space inflation that air intake installation, air-out apparatus and expansion sleeve three are enclosed by the dredging sealing joint of dredge of the present utility model without setting up other equipment, directly dredging sealing joint is inserted in soil pipe in use, the most directly handle inflator or it is inflated by hydraulic connecting equipment, one-way air inlet mechanism structure is simple, low cost of manufacture, after logical dirt completes, the logical dirty trachea of direct pull just can complete to lose heart dredging sealing joint, convenient to use.
Accompanying drawing explanation
With embodiment, this utility model is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is the dredging sealing joint schematic diagram of this utility model dredge；
Fig. 2 is the close-up schematic view of A in Fig. 1；
Fig. 3 is the close-up schematic view of B in Fig. 1；
Fig. 4 is that the dredging sealing joint of this utility model dredge connects inflator schematic diagram.
In figure: 1, inner tube, 2, expansion sleeve, 3, confined space, 4, logical dirty trachea, 401, second flange ring, 402, gasket seal, 5, air induction mast, 501, first inner chamber, 502, air inlet/outlet, 503, pressure limiting leaks hole, 6, air inlet union joint, 601, first flange ring, 602, air vent, 603, air inlet, 7, end cap, 8, first annular projection, 9, first lock tube ring, 10, air inlet non-return seal, 11, gas outlet, 111, second inner chamber, 112, back-up ring, 12, give vent to anger union joint, 121, first connecting tube, 122, second connecting tube, 13, outer sleeve, 131, three-flange ring, 132, through hole, 14, second annular protrusion, 15, second lock tube ring, 16, inflator.
Detailed description of the invention
Presently in connection with accompanying drawing, this utility model is described in further detail.These accompanying drawings are the schematic diagram of simplification, and basic structure of the present utility model is described the most in a schematic way, and therefore it only shows the composition relevant with this utility model.
Embodiment 1
As Figure 1-4, a kind of dredging sealing joint of dredge, including inner tube 1 and the expansion sleeve 2 that is set in outside inner tube 1, one end of inner tube 1 is provided with air intake installation, the other end is provided with air-out apparatus, expansion sleeve 2, air intake installation and air-out apparatus enclose a distensible confined space 3, inner tube 1 connects with confined space 3, one-way air inlet mechanism it is provided with between inner tube 1 and confined space 3, air intake installation includes logical dirty trachea 4, connector and pressure limiting leak mechanism, there is on connector the passage connected with confined space 3, pressure limiting leaks mechanism for logical dirty trachea 4 is close to connector, realize passage plugging, by connector, inner tube 1 is connected with logical dirty trachea 4 simultaneously.
nullConnector includes air induction mast 5 and the air inlet union joint 6 with the first inner chamber 501，One end of air induction mast 5 is plugged in expansion sleeve 2，Air inlet union joint 6 is arranged in the first inner chamber 501 of air induction mast 5，One end of air inlet union joint 6 connects with inner tube 1，The air inlet union joint 6 end thread near one end of inner tube 1 with air induction mast 5 is connected，The other end of air inlet union joint 6 has the first flange ring 601 matched with the first inner chamber 501，Offer on air induction mast 5 for connecting confined space 3 and the air inlet/outlet 502 of the first inner chamber 501，Air vent 602 is offered on first flange ring 601，Offer on air induction mast 5 and leak hole 503 for connecting the extraneous pressure limiting with the first inner chamber 501，Leak hole 503 and air inlet/outlet 502 of pressure limiting lays respectively at the both sides of the first flange ring 601，First inner chamber 501 has step surface，First flange ring 601 flushes with step surface.When the pressure in distensible confined space 3 is excessive; in order to protect expansion sleeve 2; logical dirty trachea 4 separates with connector; gas in confined space 3 can enter the first inner chamber 501 from air inlet/outlet 502; then it is discharged into the external world from pressure limiting hole 503 of leaking, after logical dirt terminates, opens dirty trachea 4 from connector pull-up; gas in confined space 3 can enter the first inner chamber 501 from air inlet/outlet 502, and gas in the first inner chamber 501 can leak hole from pressure release simultaneously and inner tube 1 is discharged into the external world.
Pressure limiting mechanism of leaking includes end cap 7 and the second flange ring 401, second flange ring 401 matches with the first inner chamber 501, second flange ring 401 is fixed on the end, one end of logical dirty trachea 4, end cap 7 lid is located at the end of the first inner chamber 501, second flange ring 401 has magnetic, end cap 7 is ferromagnetism end cap, the first flange ring 601 there is ferromagnetism, second flange ring 401 is close on step surface, second flange ring 401 is close on the first flange ring 601 simultaneously, adsorb on the first flange ring 601 by having magnetic second flange ring 401, complete the closure to air vent 602, wherein air induction mast 5 or/and the second flange ring 401 to have ferromagnetism the most permissible.
One end that expansion sleeve 2 is connected with air induction mast 5 is provided with first annular protruding 8, the first lock tube ring 9 it is arranged with outside expansion sleeve 2, the side of the first lock tube ring 9 is resisted against on first annular protruding 8, first the first lock tube ring 9 is abutted against on first annular protruding 8, tightly fit with air induction mast 5 in the end making expansion sleeve 2, when air inlet in confined space 3, expansion sleeve 2 expands therewith, expansion sleeve 2 can extend, due to the first annular existence of protruding 8, expansion sleeve 2 is locked on air induction mast 5 by the first lock tube ring 9, realize expansion sleeve 2 when expanding, between expansion sleeve 2 with air induction mast 5, automatic-sealed is fixing is connected, it is the most severe that expansion sleeve 2 expands, between expansion sleeve 2 and air induction mast 5, sealing property is the best.
One-way air inlet mechanism includes air inlet non-return seal 10, the position that air inlet union joint 6 is positioned in the first inner chamber 501 offers some air inlets 603, air inlet non-return seal 10 is coated on air inlet union joint 6 and is positioned at the position of air inlet 603, when gas enters air inlet 603 in air inlet union joint 6, air inlet non-return seal 10 is positioned at the position of air inlet 603 and can expand, then gas enters confined space 3 from the gap between air inlet non-return seal 10 and inlet pipe connection outer wall, otherwise the gas in confined space 3 cannot be introduced into air inlet 603.
nullAir-out apparatus includes the gas outlet 11 having the second inner chamber 111 and gives vent to anger union joint 12，One end of gas outlet 11 is plugged in expansion sleeve 2，The give vent to anger both sides of union joint 12 have the first connecting tube 121 and the second connecting tube 122 being interconnected，First connecting tube 121 connects with inner tube 1，Union joint 12 of giving vent to anger is fixed on gas outlet 11 one end near expansion sleeve 2，The outer sleeve 13 that one end is closed it is arranged with outside second connecting tube 122，The inwall of outer sleeve 13 and the wall contacts of the second connecting tube 122，Outer sleeve 13 is fixed with the magnetic three-flange ring 131 of tool near the end, one end of union joint 12 of giving vent to anger，Second inner chamber 111 is provided with back-up ring 112，Three-flange ring 131 is being given vent to anger between union joint 12 and back-up ring 112，Back-up ring 112 is respectively provided with ferromagnetism with union joint 12 of giving vent to anger，Some through holes 132 are offered on the sidewall of outer sleeve 13，Three-flange ring 131 adsorbs is giving vent to anger on union joint 12，During use，When the pressure in expansion sleeve 2 more than three-flange ring 131 and give vent to anger between union joint 12 magnetic force time，Three-flange ring 131 separates with union joint 12 of giving vent to anger，Now outer sleeve 13 staggers with the second connecting tube 122，Inner tube 1 becomes conducting state，Now the tamper in soil pipe can be dredged，If soil pipe blocking is serious，Exceed the internal pressure of expansion sleeve 2，One-way air inlet mechanism on air inlet union joint 6 can automatically open up air inlet in phase expansion sleeve 2，I.e. soil pipe blocking is the most serious，The pressure of expansion sleeve 2 is the biggest，Frictional force between soil pipe and soil pipe inwall is the biggest.
One end that expansion sleeve 2 is connected with gas outlet 11 is provided with the second annular protrusion 14, the second lock tube ring 15 it is arranged with outside expansion sleeve 2, the side of the second lock tube ring 15 is resisted against on the second annular protrusion 14, when air inlet in confined space 3, expansion sleeve 2 expands therewith, expansion sleeve 2 can extend, existence due to the second annular protrusion 14, expansion sleeve 2 is locked on gas outlet 11 by the second lock tube ring 15, realize expansion sleeve 2 when expanding, between expansion sleeve 2 with gas outlet 11, automatic-sealed is fixing is connected, it is the most severe that expansion sleeve 2 expands, between expansion sleeve 2 and gas outlet 11, sealing property is the best.
Second flange ring 401 is provided with gasket seal 402 near the side of the first flange ring 601, and gasket seal 402 is so that the second flange ring 401 preferably blocks air vent 602.
Having in expansion sleeve 2 for moulding explosion-proof Elastic curtain layer of cloth, Elastic curtain layer of cloth can improve the intensity of expansion sleeve 2 simultaneously.
On the outer wall of air induction mast 5, the one end away from expansion sleeve 2 is provided with projection, and on the outer wall of gas outlet 11, the one end away from expansion sleeve 2 is also equipped with projection.Projection on air induction mast 5 is ramped shaped, projection on gas outlet 11 is arc-shaped, air inlet connecting cylinder and connecting cylinder of giving vent to anger arrange projection, on the one hand swelling bag is made to form, between lock tube ring and projection, the trend pressed against when expanding, make the sealing property between the two ends of expansion sleeve 2 and air induction mast 5 and gas outlet 11 more preferable, on the other hand so that expansion sleeve 2 will not extend towards two ends when expanding but radially expand.
One end away from expansion sleeve 2 of air induction mast 5 is lantern-shaped, it is simple to be placed in soil pipe.
Absorption affinity between second flange ring 401 and the first flange ring 601 is more than three-flange ring 131 and the absorption affinity given vent to anger between union joint 12.
For the ease of the reset of logical dirty trachea 4, the material of Reasonable adjustment end cap 7 so that the absorption affinity between the second flange ring 401 and end cap 7 is more weak relative to the absorption affinity between the second flange ring 401 and the first flange ring 601.
Implement row 2
Embodiment 2 is with the difference of embodiment 1: inner tube 1 bending is 7 fonts, it is simple to the dredging sealing joint in this utility model is preferably fixed in toilet, and the bending part rounding of inner tube 1 is arranged, and prevents the wedge angle of bending part from puncturing expansion sleeve 2.
With embodiment 1 illustrate this utility model dredge dredging sealing joint operation principle:
nullInflator 16 is connected with logical dirty trachea 4，Dredging sealing joint is inserted in logical dirty trachea 4 pipeline of blocking，First lock tube ring 9 and the second lock tube ring 15 are tightly abutted against the two ends of expansion sleeve 2 simultaneously，Three-flange ring 131 adsorbs is giving vent to anger on union joint 12，Reach to block the purpose of inner tube 1，Handle inflator 16 to air-out apparatus、The confined space 3 that air intake installation and expansion sleeve 2 enclose is inflated，When gas enters air inlet 603 in air inlet union joint 6，Air inlet non-return seal 10 is positioned at the position of air inlet 603 and can expand，Then gas enters confined space 3 from the gap between air inlet non-return seal 10 and inlet pipe connection outer wall，Gradually expansion along with expansion sleeve 2，Pressure is gradually increased，Expansion sleeve 2 can be close on soil pipe inwall，When the pressure in inner tube 1 more than three-flange ring 131 and give vent to anger between union joint 12 absorption affinity time，Outer sleeve 13 union joint 12 of relatively giving vent to anger is gradually disengaged，And three-flange ring 131 can finally adsorb on back-up ring 112，Now logical dirty trachea 4 becomes conducting state，Now continue to handle inflator 16 tamper in soil pipe is dredged，If sewage conduct blocking is serious，Exceed the pressure that expansion sleeve 2 can bear，Second flange ring 401 can depart from the first flange ring 601，Now the gas in confined space 3 can be discharged into the external world from pressure limiting hole 503 of leaking，Effectively carry out protecting expansion sleeve 2，Existence due to one-way air inlet mechanism，Pressure in inner tube 1 is the biggest，Pressure in confined space 3 is the biggest，The frictional force between expansion sleeve 2 and soil pipe is increased with this，After dredging completes，With hands, logical dirty trachea 4 is pulled open，The second flange ring 401 is made to adsorb on end cap 7，Thus the gas in confined space 3 is discharged into the external world from pressure limiting leaks hole 503，The most easily dredging sealing joint is taken out from soil pipe.
Above-mentioned is enlightenment according to desirable embodiment of the present utility model, and by above-mentioned description, relevant staff can carry out various change and amendment completely in the range of without departing from this utility model technological thought.The content that the technical scope of this utility model is not limited in description, it is necessary to determine its technical scope according to right.
Claims (10)
- null1. the dredging sealing joint of a dredge，It is characterized in that: include inner tube (1) and be set in inner tube (1) expansion sleeve (2) outward，One end of said inner tube (1) is provided with air intake installation，The other end is provided with air-out apparatus，Described expansion sleeve (2)、Air intake installation and air-out apparatus enclose a distensible confined space (3)，Said inner tube (1) connects with described confined space (3)，It is provided with one-way air inlet mechanism between said inner tube (1) and described confined space (3)，Described air intake installation includes logical dirty trachea (4)、Connector and pressure limiting leak mechanism，There is on described connector the passage connected with confined space (3)，Described pressure limiting leaks mechanism for logical dirty trachea (4) is close to described connector，Realize described passage plugging，By connector, inner tube (1) is connected with logical dirty trachea (4) simultaneously.
- nullThe dredging sealing joint of dredge the most according to claim 1，It is characterized in that: described connector includes having air induction mast (5) and the air inlet union joint (6) of the first inner chamber (501)，One end of described air induction mast (5) is plugged in described expansion sleeve (2)，Described air inlet union joint (6) is arranged in first inner chamber (501) of described air induction mast (5)，One end of described air inlet union joint (6) connects with said inner tube (1)，The other end of described air inlet union joint (6) has the first flange ring (601) matched with described first inner chamber (501)，The air inlet/outlet (502) for connecting confined space (3) and the first inner chamber (501) is offered on described air induction mast (5)，Air vent (602) is offered on described first flange ring (601)，Offer on described air induction mast (5) and leak hole (503) for connecting the extraneous pressure limiting with the first inner chamber (501)，Leak hole (503) and air inlet/outlet (502) of described pressure limiting lays respectively at the both sides of described first flange ring (601).
- The dredging sealing joint of dredge the most according to claim 2, it is characterized in that: described pressure limiting mechanism of leaking includes end cap (7) and the second flange ring (401), described second flange ring (401) matches with described first inner chamber (501), described second flange ring (401) is fixed on the end, one end of described logical dirty trachea (4), described end cap (7) lid is located at the end of described first inner chamber (501), described the second flange ring (401) has magnetic, described end cap (7) is ferromagnetism end cap (7), described the first flange ring (601) has ferromagnetism, described second flange ring (401) is close on described first flange ring (601).
- The dredging sealing joint of dredge the most according to claim 2, it is characterized in that: one end that described expansion sleeve (2) is connected with described air induction mast (5) is provided with first annular projection (8), being arranged with the first lock tube ring (9) outside described expansion sleeve (2), the side of described first lock tube ring (9) is resisted against on described first annular projection (8).
- 5. according to weighing the dredging sealing joint requiring the dredge described in 2, it is characterized in that: described one-way air inlet mechanism includes air inlet non-return seal (10), the position that described air inlet union joint (6) is positioned in described first inner chamber (501) offers some air inlets (603), and described air inlet non-return seal (10) is coated on described air inlet union joint (6) and is positioned at the position of air inlet (603).
- nullThe dredging sealing joint of dredge the most according to claim 1，It is characterized in that: described air-out apparatus includes having gas outlet (11) and the union joint of giving vent to anger (12) of the second inner chamber (111)，One end of described gas outlet (11) is plugged in described expansion sleeve (2)，The both sides of described union joint of giving vent to anger (12) have the first connecting tube (121) and the second connecting tube (122) being interconnected，Described first connecting tube (121) connects with said inner tube (1)，Described union joint of giving vent to anger (12) is fixed on the upper one end near described expansion sleeve (2) of gas outlet (11)，The outer sleeve (13) that one end is closed it is arranged with outside described second connecting tube (122)，The inwall of described outer sleeve (13) and the wall contacts of described second connecting tube (122)，Described outer sleeve (13) near described in the give vent to anger end, one end of union joint (12) be fixed with the magnetic three-flange ring (131) of tool，Described second inner chamber (111) is provided with back-up ring (112)，Described three-flange ring (131) is positioned between union joint of giving vent to anger (12) and back-up ring (112)，Described back-up ring (112) and described union joint of giving vent to anger (12) are respectively provided with ferromagnetism，Some through holes (132) are offered on the sidewall of described outer sleeve (13).
- The dredging sealing joint of dredge the most according to claim 6, it is characterized in that: one end that described expansion sleeve (2) is connected with described gas outlet (11) is provided with the second annular protrusion (14), being arranged with the second lock tube ring (15) outside described expansion sleeve (2), the side of described second lock tube ring (15) is resisted against on described second annular protrusion (14).
- The dredging sealing joint of dredge the most according to claim 3, it is characterised in that: described second flange ring (401) is provided with gasket seal (402) near the side of described first flange ring (601).
- The dredging sealing joint of dredge the most according to claim 1, it is characterised in that: described expansion sleeve (2) has for moulding explosion-proof Elastic curtain layer of cloth.
- The dredging sealing joint of dredge the most according to claim 7, it is characterized in that: on the outer wall of described air induction mast (5), the one end away from described expansion sleeve (2) is provided with projection, and on the outer wall of described gas outlet (11), the one end away from described expansion sleeve (2) is also equipped with projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620193856.XU CN205421454U (en) | 2016-03-14 | 2016-03-14 | Mediation sealing -in head of dredge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620193856.XU CN205421454U (en) | 2016-03-14 | 2016-03-14 | Mediation sealing -in head of dredge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205421454U true CN205421454U (en) | 2016-08-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620193856.XU Expired - Fee Related CN205421454U (en) | 2016-03-14 | 2016-03-14 | Mediation sealing -in head of dredge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205421454U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113267220A (en) * | 2021-06-21 | 2021-08-17 | 浙江中工石化设备有限公司 | Pressure pipeline testing device |
-
2016
- 2016-03-14 CN CN201620193856.XU patent/CN205421454U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113267220A (en) * | 2021-06-21 | 2021-08-17 | 浙江中工石化设备有限公司 | Pressure pipeline testing device |
| CN113267220B (en) * | 2021-06-21 | 2024-01-12 | 浙江中工石化设备有限公司 | Pressure pipeline testing device |
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