CN209381003U - Section of jurisdiction formwork erecting structure for pre-buried gasket - Google Patents
Section of jurisdiction formwork erecting structure for pre-buried gasket Download PDFInfo
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- CN209381003U CN209381003U CN201821779996.0U CN201821779996U CN209381003U CN 209381003 U CN209381003 U CN 209381003U CN 201821779996 U CN201821779996 U CN 201821779996U CN 209381003 U CN209381003 U CN 209381003U
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- gasket
- jurisdiction
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- buried
- embedded division
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Abstract
The utility model relates to a kind of section of jurisdiction formwork erecting structures for pre-buried gasket, comprising: duct piece steel mould is enclosed the casting space of section of jurisdiction, and duct piece steel mould corresponds to circumferential weld and/or the surface of longitudinal joint offers caulking groove；Gasket, including being embedded at the embedded division of caulking groove and the preburying part in casting space, embedded division links into an integrated entity with preburying part, the raised anchor corner structure of preburying part, so that the contact surface between preburying part and section of jurisdiction after pouring is the face of a non-straight；And fixation kit, embedded division is fixed in caulking groove set on the junction of embedded division and duct piece steel mould, and by fixation kit.The step of structure of the utility model realizes the pre-buried of section of jurisdiction gasket, eliminates stickup, construction efficiency are high.Section of jurisdiction after pouring forms the contact surface of non-straight due to being equipped with gasket, and between gasket and section of jurisdiction, has achieved the effect that prevent section of jurisdiction from seeping water.
Description
Technical field
The utility model relates to technical field of tunnel construction, refer in particular to a kind of section of jurisdiction formwork erecting structure for pre-buried gasket.
Background technique
In general, the main penetrating passage to seep water at segment joint is by seeping at the contact surface of section of jurisdiction and gasket
Water.Traditional section of jurisdiction gasket, such as Chinese leading patent CN205078287U are to lead to gasket after the completion of section of jurisdiction produces
It crosses the mode pasted to be fixed on section of jurisdiction, close in order to paste, the contact surface of gasket and section of jurisdiction must be a plane, cause
Its penetrating passage is straight and the case where being easy to happen infiltration.In order to change the fixed form of gasket, gasket can be passed through
Pre-buried mode is fixed on section of jurisdiction, however there are no can be with the section of jurisdiction formwork erecting structure of pre-buried gasket on the market at present.
Utility model content
The purpose of the utility model is to overcome the defects of the prior art, provide a kind of section of jurisdiction branch for pre-buried gasket
Mode structure, can solve traditional section of jurisdiction formwork erecting structure cannot pre-buried gasket the problem of.
Realizing the technical solution of above-mentioned purpose is:
The utility model provides a kind of section of jurisdiction formwork erecting structure for pre-buried gasket, comprising:
Duct piece steel mould, the duct piece steel mould is enclosed the casting space of section of jurisdiction, and the duct piece steel mould corresponds to circumferential weld
And/or the surface of longitudinal joint offers caulking groove；
Gasket, the gasket include being embedded at the embedded division of the caulking groove and pre-buried in the casting space
Portion, the embedded division link into an integrated entity with the preburying part, the raised anchor corner structure of preburying part, so that described pre-buried
Contact surface between portion and section of jurisdiction after pouring is the face of a non-straight；And
Fixation kit, the fixation kit are set to the junction of the embedded division and the duct piece steel mould, and by described
The embedded division is fixed in the caulking groove by fixation kit.
The utility model has the beneficial effects that opening up caulking groove on duct piece steel mould, and the embedded division of gasket is passed through admittedly
Determine component to be fixed in caulking groove, is located at the preburying part of gasket in the casting space of section of jurisdiction；And then by preburying part surface
Anchor corner structure so that form the contact surface of non-straight between preburying part and section of jurisdiction after pouring, and underground water is difficult to by non-
Straight face is penetrated into tunnel, thus achievees the effect that prevent infiltration.In addition, gasket is fixed on pipe by pre-buried mode
Piece, the step of eliminating stickup, construction efficiency are high.
The utility model for pre-buried gasket section of jurisdiction formwork erecting structure further improvement lies in that, the table of the embedded division
Face offers card slot, and the fixation kit includes the magnetic stripe being embedded in the card slot, is adsorbed in the pipe by the magnetic stripe
Piece punching block is to make the embedded division be fixed on the caulking groove.
The utility model for pre-buried gasket section of jurisdiction formwork erecting structure further improvement lies in that, the card slot oral area
Width is less than the width of the card slot inner space, limits so that the oral area of the card slot forms the magnetic stripe, so that
The magnetic stripe is fixed in the card slot.
The utility model for pre-buried gasket section of jurisdiction formwork erecting structure further improvement lies in that, the gasket also wraps
Include the sealing rod that can be embedded in the card slot.
The utility model for pre-buried gasket section of jurisdiction formwork erecting structure further improvement lies in that, the duct piece steel mould position
Through-hole is offered at the bottom surface of the caulking groove；
The fixation kit includes the adsorbent equipment that end is arranged in the through-hole, the adsorbent equipment and the gasket
Opposite surface is affixed, and applies adsorption capacity to the gasket by the adsorbent equipment to which the gasket is fixed on institute
It states in caulking groove.
The utility model for pre-buried gasket section of jurisdiction formwork erecting structure further improvement lies in that, the adsorbent equipment packet
The adsorption tube for being arranged in the through-hole and fixing with the duct piece steel mould is included, the hose of the adsorption tube is connected to and is connected to
The vacuum pump of the hose takes the air in the hose and the adsorption tube away by the vacuum pump, so that the absorption
Pipe generates adsorption capacity to the gasket, and then is fixed on the gasket in the caulking groove.
The utility model for pre-buried gasket section of jurisdiction formwork erecting structure further improvement lies in that, the one of the adsorption tube
End is formed with the sucker structure for being affixed on the gasket surface, the diameter of the sucker structure with close to the gasket and by
Cumulative big, the other end of the adsorption tube offers screw thread and is screwed with a nut, and the nut is resisted against the duct piece steel mould
Side far from the gasket, and the sucker structure is resisted against the side that the duct piece steel mould is located at the caulking groove bottom surface,
To which the adsorption tube and the duct piece steel mould be fixed.
The utility model for pre-buried gasket section of jurisdiction formwork erecting structure further improvement lies in that, the gasket also wraps
Two to link into an integrated entity with the embedded division and preburying part only slurry portion is included, the only slurry portion corresponds to position on the embedded division
At the notch of the caulking groove part setting, and it is described only slurry portion close to the embedded division surface with can the duct piece steel mould
Surface fitting, thus realize stop pour section of jurisdiction concrete enter the caulking groove in.
The utility model for pre-buried gasket section of jurisdiction formwork erecting structure further improvement lies in that, the anchor corner structure is remote
The width of part from the embedded division is greater than it close to the width of the part of the embedded division.
The utility model for pre-buried gasket section of jurisdiction formwork erecting structure further improvement lies in that, the anchor corner structure leans on
The surface of nearly section of jurisdiction intrados is guide surface, and the guide surface is obliquely installed, and makes the guide surface far from the embedded division
Part close to section of jurisdiction extrados.
Detailed description of the invention
Fig. 1 is the schematic cross-section in the utility model first embodiment for the section of jurisdiction formwork erecting structure of pre-buried gasket.
Fig. 2 is the structural schematic diagram of gasket in the utility model first embodiment.
The schematic diagram of a pair of gasket fitting when Fig. 3 is section of jurisdiction splicing in the utility model first embodiment.
Fig. 4 is the schematic cross-section in the utility model second embodiment for the section of jurisdiction formwork erecting structure of pre-buried gasket.
Fig. 5 is the structural schematic diagram of gasket in the utility model second embodiment.
Fig. 6 is the structural schematic diagram that adsorption tube is arranged in duct piece steel mould in the utility model second embodiment.
Fig. 7 is the structural schematic diagram of the first tube coupling in the utility model second embodiment.
Fig. 8 is the structural schematic diagram of the second tube coupling in the utility model second embodiment.
The schematic diagram of a pair of gasket fitting when Fig. 9 is section of jurisdiction splicing in the utility model second embodiment.
Description of symbols:
11- embedded division；111- binding face；112- boss；The first hole of 113-；114- reticular structure；
12- preburying part；121- anchor corner structure；122- guide surface；123- sealing face；124- transition face；The second hole of 125-；
126- support construction；
13- stops slurry portion；131- stops pulp noodle；132- guide surface；
14- card slot；141- magnetic stripe；142- sealing rod；
20- duct piece steel mould；21- position limiting structure；The section of jurisdiction 30-；31- concrete；311- bubble；
41- adsorption tube；411- sucker structure；412- ripple struction；413- screw thread；414- nut；415- card slot；416- card
It is convex；417- retention bead；42- vacuum pump；43- air valve；44- hose；441- hose coupling.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments.
Refering to fig. 1, the utility model provides a kind of section of jurisdiction formwork erecting structure for pre-buried gasket, the section of jurisdiction after pouring
Due to gasket setting and have preferable percolation-proof effect, solving traditional section of jurisdiction formwork erecting structure can not pre-buried gasket
The problem of.The section of jurisdiction formwork erecting structure to the utility model for pre-buried gasket is illustrated with reference to the accompanying drawing.
As shown in Figures 1 to 9, the utility model includes gasket, section of jurisdiction for the section of jurisdiction formwork erecting structure of pre-buried gasket
Punching block 20 and fixed structure.Duct piece steel mould 20 is enclosed the casting space of section of jurisdiction, and duct piece steel mould 20 correspond to circumferential weld and/
Or the surface of longitudinal joint offers caulking groove.Gasket is elongated rubber pad, is leaked at the circumferential weld and/or longitudinal joint for preventing section of jurisdiction
Water.The gasket includes the embedded division 11 for being embedded at caulking groove and the preburying part 12 in casting space, embedded division 11 with it is pre-buried
Portion 12 links into an integrated entity, and embedded division 11 is formed with a binding face 111 far from the side of section of jurisdiction.Fixation kit be set to embedded division 11 with
Embedded division 11 is fixed in caulking groove by the junction of duct piece steel mould 20 by fixation kit.
In the first embodiment, referring to figs. 1 and 2, one is offered on the binding face 111 of embedded division 11 for being embedded magnetic
The card slot 14 of item or sealing rod.The fixation kit includes the magnetic stripe 141 being embedded in card slot 14, by close to binding face 111
Magnetic stripe 141 be adsorbed in duct piece steel mould 20 and be located at caulking groove bottom surface, so that embedded division 11 be made to be fixed on caulking groove.Preferably, and blocking
The width of 14 oral area of slot is less than the width of 14 inner space of card slot, limits so that the oral area of card slot 14 forms magnetic stripe 141, in turn
So that magnetic stripe 141 is fixed in card slot 14.
In a second embodiment, in conjunction with shown in Fig. 4 to Fig. 8, duct piece steel mould 20 is located to offer at the bottom surface of caulking groove and run through
The through-hole of duct piece steel mould 20.Fixation kit includes the adsorbent equipment that end is arranged in through-hole, and the adsorbent equipment is opposite with gasket
Surface be affixed.Specifically, which includes being arranged in through-hole and the adsorption tube 41 fixed with duct piece steel mould 20, being connected to
The hose 44 of adsorption tube and the vacuum pump 42 for being connected to hose 44, take the sky in hose and adsorption tube away by vacuum pump 42
Gas, to make to form negative pressure in hose and adsorption tube and generate adsorption capacity so that gasket 10 is fixed on caulking groove to gasket 10
It is interior.
One end of adsorption tube 41 is formed with the sucker structure 411 for being affixed on gasket surface, the diameter of sucker structure 411 with
It is gradually increased close to gasket, the setting of sucker structure 411 increases the area of adsorbent equipment absorption gasket, makes gasket
It can preferably be adsorbed.The shape of through-hole is adapted with the shape of adsorption tube 41, and through-hole is close to the corresponding suction in the side of gasket
Dish structure 411 forms funnel-form.Adsorption tube 41 offers external screw thread far from one end of gasket and is screwed with a nut 414, should
Nut 414 is resisted against side of the duct piece steel mould 20 far from gasket, and sucker structure 411 is resisted against duct piece steel mould 20 and is located at caulking groove
The side of bottom surface is resisted against the two sides of duct piece steel mould by sucker structure 411 and nut 414, thus by adsorption tube 41 and section of jurisdiction
Punching block 20 is fixed.
Preferably, the edge of sucker structure 411 is formed with the ripple struction 412 for being affixed on the surface of gasket.Pass through the wave
Line structure 412 makes sucker structure 411 and sealing gasket joining synapsis have certain flexibility, it is ensured that adsorbent equipment is contacted with gasket
The leakproofness at place, enables gasket to be preferably adsorbed.
Further, adsorption tube 41 includes the first tube coupling and the second tube coupling, and the inner surface of the first tube coupling offers a circle card
Slot 415, the second tube coupling outer surface correspond to card slot 415 equipped with a circle card convex 416, the second tube coupling is inserted in the first tube coupling, at this point,
Card convex 416 is arranged in card slot 415, not only improves the bonding strength of the second tube coupling and the first tube coupling, also ensures the second pipe
The air-tightness of section and the first tube coupling junction.
One end of hose 44 is connect by a hose coupling 441 with the second tube coupling.The inner surface of second tube coupling is far from first
Retention bead 417 is equipped at tube coupling, hose coupling 441 is inserted in the second tube coupling, at this time due to the setting of retention bead 417, the
Two tube couplings are with 441 interference connection of hose coupling so that it is guaranteed that the two is completely embedded.The other end of hose 44 is connected to vacuum pump 42,
And the middle part of hose 44 is installed with one for controlling the air valve 43 of the adsorbent equipment.
As shown in Fig. 3 or Fig. 9, gasket part is pre-buried to reveal on the end face that section of jurisdiction is located at circumferential weld and/or longitudinal joint and part
For section of jurisdiction end face, so that a pair of of gasket is oppositely arranged at the circumferential weld and/or longitudinal joint of section of jurisdiction.In figure, the upper table of section of jurisdiction 30
Face is its extrados, which is the close surface for being affixed on the soil body after the installation of section of jurisdiction.To simplify description, hereafter referred to "upper"
It refers to close to the direction of section of jurisdiction extrados, and with "lower" close to the direction of section of jurisdiction intrados.
As illustrated in fig. 2 or fig. 5, the surface of preburying part 12 is formed with the anchor corner structure 121 of at least two protrusions, so that pre-buried
Contact surface between portion 12 and section of jurisdiction 30 is the face of a non-straight.
Preferably, anchor corner structure 121 is protruded to far from embedded division and close to the direction of section of jurisdiction extrados, that is, anchor corner structure
Extrados of 121 parts far from embedded division close to section of jurisdiction.The lower surface of anchor corner structure 121 is (i.e. close to the table of section of jurisdiction intrados
Face) it is guide surface 122, and the water surface 123 until its upper surface (i.e. close to the surface of section of jurisdiction extrados).The guide surface 122 and only
The water surface 123 is inclined-plane and tilts upwards (i.e. close to the direction of section of jurisdiction extrados), so that underground water penetrates into from contact surface
Shi Bixu flows back along sealing face 123 and just can effectively prevent seeping water by the contact surface.And the slope in sealing face 123 be greater than draw
The slope of guide face 122, so that the width of part of the anchor corner structure 121 far from embedded division is greater than it close to the width of the part of embedded division
Degree, through this structure, enables anchor corner structure 121 to be more firmly embedded in concrete in advance, prevents gasket from falling off.
In a preferable embodiment, the quantity of anchor corner structure 121 is two, and is located at the corner of preburying part 12, in advance
Burying surface of the portion 12 between two anchor corner structures 121 is vertical plane, so that connecing between preburying part 12 and section of jurisdiction 30
Contacting surface is the face of " bow " font.
As shown in Figure 1, Figure 2 or shown in Fig. 4, Fig. 5, usually when pouring section of jurisdiction, the outer arc of section of jurisdiction is face-up.And by close
The inclined guide surface 122 in the direction of section of jurisdiction extrados, so that in casting concrete 31 and when vibrating to concrete 31, coagulation
Bubble 311 in soil can float with inclined guide surface 122 and concrete is discharged.Effectively prevent anchor corner structure 121
Setting stops bubble 311 to be discharged, and causes section of jurisdiction not to be bonded with preburying part, generates biggish gap at contact surface, and then causes pre-
The case where burying insecure and infiltration.It similarly, is transition face 124, the transition close to the surface of section of jurisdiction intrados on preburying part 12
Face 124 also tilts (i.e. close to the direction of section of jurisdiction extrados) upwards, to be conducive to the discharge of bubble 311.And anchor corner structure
The surface that guide surface 122 and sealing face 123 are connected on 121 is vertical surface, and built-in fitting 12 is between anchor corner structure 121
Surface is also vertical surface, and bubble 311 can also float and be discharged with vertical surface.
Embedded division 11 is equipped with boss 112 at binding face 111, and the limit for adapting to the boss 112 is formed in caulking groove
Bit architecture 21 is stuck in position limiting structure 21 by boss 112 to further increase embedded division 11 embedded in the secured of duct piece steel mould 20
Degree prevents gasket from falling off.Preferably, the quantity of boss 112 is two, and it is respectively facing the intrados and extrados of section of jurisdiction
Direction protrusion, be stuck in position limiting structure by two boss 112 so that out of duct piece steel mould 20 take out gasket when, it is necessary to make
It take out 112 deformation of boss can with biggish power, such structure can preferably increase the secured of gasket insertion punching block 20
Degree.
Gasket further includes that two to link into an integrated entity with embedded division 11, preburying part 12 stop slurry portion 13, and two are stopped slurry portion 13
Part setting on embedded division 11 at the corresponding notch for being located at caulking groove.Only slurry portion 13 is starched until the surface of embedded division 11
Face 131 only pulp noodle 131 should be adjacent to the side surface up and down of embedded division 11, and should stop the table that pulp noodle 131 are parallel to duct piece steel mould 20
Face, when embedded division 11 is embedded in duct piece steel mould 20, only pulp noodle 131 are bonded with the surface of duct piece steel mould 20, and in casting concrete
After 31, concrete 31 is to only pressure of 13 1, the slurry portion towards duct piece steel mould 20, so that only pulp noodle 131 and 20 surface of duct piece steel mould
Fitting more closely, effectively prevent concrete slurry to flow into the caulking groove on duct piece steel mould 20.
Only slurry portion 13 is guide surface 132 close to the surface of preburying part 12, which is adjacent to transition face 124, and leads
It is tilted upwards (i.e. close to the direction of section of jurisdiction extrados) to face 132 is also the same.Due to guide surface 132, transition face 124 and draw
Guide face 122 constitutes the lower surface (i.e. close to the surface of section of jurisdiction intrados) for the part that gasket is embedded in advance in section of jurisdiction, so that nothing
The where of 12 lower section of preburying part be located at by bubble 311, it can be with 122 row of guide surface 132, transition face 124 and guide surface
Out.
Preferably, multiple holes extended along its length are equipped with inside gasket, convenient for making to seal when section of jurisdiction is spliced
Pad deformation has reached sealing and water-impervious so that two binding faces fit closely under the action of gasket restoring force
Effect.
In the first embodiment, as shown in Figures 2 and 3, gasket further includes the water-swellable sealing for being embedded at card slot 14
Item 142.After concrete setting forms section of jurisdiction 30, also magnetic stripe 141 is taken out from card slot while removing duct piece steel mould 20, is stayed
Space in empty calorie slot.It is subsequent then by water expandable waterstop 142 be embedded in card slot in, thus section of jurisdiction 30 splice when, Yi Duimi
Two water expandable waterstops 142 on packing are also oppositely arranged and mutually fit.Pass through the setting of water expandable waterstop 142
Make that there is more preferably water-stagnating effect at the binding face of gasket.
Combine figure embodiment that the utility model is described in detail above, those skilled in the art can root
Many variations example is made to the utility model according to above description.Thus, certain details in embodiment should not constitute practical to this
Novel restriction, the utility model will be using the ranges that the appended claims define as the protection scope of the utility model.
Claims (10)
1. a kind of section of jurisdiction formwork erecting structure for pre-buried gasket characterized by comprising
Duct piece steel mould, the duct piece steel mould are enclosed the casting space of section of jurisdiction, and the duct piece steel mould correspond to circumferential weld and/or
The surface of longitudinal joint offers caulking groove；
Gasket, the gasket include the embedded division for being embedded at the caulking groove and the preburying part in the casting space,
The embedded division links into an integrated entity with the preburying part, the raised anchor corner structure of preburying part, so that the preburying part
With pour after section of jurisdiction between contact surface be a non-straight face；And
Fixation kit, the fixation kit are set to the junction of the embedded division and the duct piece steel mould, and pass through the fixation
The embedded division is fixed in the caulking groove by component.
2. being used for the section of jurisdiction formwork erecting structure of pre-buried gasket as described in claim 1, which is characterized in that the table of the embedded division
Face offers card slot, and the fixation kit includes the magnetic stripe being embedded in the card slot, is adsorbed in the pipe by the magnetic stripe
Piece punching block is to make the embedded division be fixed on the caulking groove.
3. being used for the section of jurisdiction formwork erecting structure of pre-buried gasket as claimed in claim 2, which is characterized in that the card slot oral area
Width is less than the width of the card slot inner space, limits so that the oral area of the card slot forms the magnetic stripe, so that
The magnetic stripe is fixed in the card slot.
4. being used for the section of jurisdiction formwork erecting structure of pre-buried gasket as claimed in claim 2, which is characterized in that the gasket also wraps
Include the sealing rod that can be embedded in the card slot.
5. being used for the section of jurisdiction formwork erecting structure of pre-buried gasket as described in claim 1, which is characterized in that the duct piece steel mould position
Through-hole is offered at the bottom surface of the caulking groove；
The fixation kit includes the adsorbent equipment that end is arranged in the through-hole, and the adsorbent equipment is opposite with the gasket
Surface be affixed, it is described embedding to which the gasket to be fixed on to apply adsorption capacity to the gasket by the adsorbent equipment
In slot.
6. being used for the section of jurisdiction formwork erecting structure of pre-buried gasket as claimed in claim 5, which is characterized in that the adsorbent equipment packet
The adsorption tube for being arranged in the through-hole and fixing with the duct piece steel mould is included, the hose of the adsorption tube is connected to and is connected to
The vacuum pump of the hose takes the air in the hose and the adsorption tube away by the vacuum pump, so that the absorption
Pipe generates adsorption capacity to the gasket, and then is fixed on the gasket in the caulking groove.
7. being used for the section of jurisdiction formwork erecting structure of pre-buried gasket as claimed in claim 6, which is characterized in that the one of the adsorption tube
End is formed with the sucker structure for being affixed on the gasket surface, the diameter of the sucker structure with close to the gasket and by
Cumulative big, the other end of the adsorption tube offers screw thread and is screwed with a nut, and the nut is resisted against the duct piece steel mould
Side far from the gasket, and the sucker structure is resisted against the side that the duct piece steel mould is located at the caulking groove bottom surface,
To which the adsorption tube and the duct piece steel mould be fixed.
8. being used for the section of jurisdiction formwork erecting structure of pre-buried gasket as described in claim 1, which is characterized in that the gasket also wraps
Two to link into an integrated entity with the embedded division and preburying part only slurry portion is included, the only slurry portion corresponds to position on the embedded division
At the notch of the caulking groove part setting, and it is described only slurry portion close to the embedded division surface with can the duct piece steel mould
Surface fitting, thus realize stop pour section of jurisdiction concrete enter the caulking groove in.
9. being used for the section of jurisdiction formwork erecting structure of pre-buried gasket as described in claim 1, which is characterized in that the anchor corner structure is remote
The width of part from the embedded division is greater than it close to the width of the part of the embedded division.
10. the section of jurisdiction formwork erecting structure for pre-buried gasket as described in claim 1 or 9, which is characterized in that the anchor angle knot
Structure is guide surface close to the surface of section of jurisdiction intrados, and the guide surface is obliquely installed, and makes the guide surface far from described embedding
Enter the extrados of the part close to section of jurisdiction in portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821779996.0U CN209381003U (en) | 2018-10-31 | 2018-10-31 | Section of jurisdiction formwork erecting structure for pre-buried gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821779996.0U CN209381003U (en) | 2018-10-31 | 2018-10-31 | Section of jurisdiction formwork erecting structure for pre-buried gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209381003U true CN209381003U (en) | 2019-09-13 |
Family
ID=67867438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821779996.0U Active CN209381003U (en) | 2018-10-31 | 2018-10-31 | Section of jurisdiction formwork erecting structure for pre-buried gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209381003U (en) |
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2018
- 2018-10-31 CN CN201821779996.0U patent/CN209381003U/en active Active
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