WO2017016018A1 - 一种设有隔板的管道用法兰 - Google Patents

一种设有隔板的管道用法兰 Download PDF

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Publication number
WO2017016018A1
WO2017016018A1 PCT/CN2015/088355 CN2015088355W WO2017016018A1 WO 2017016018 A1 WO2017016018 A1 WO 2017016018A1 CN 2015088355 W CN2015088355 W CN 2015088355W WO 2017016018 A1 WO2017016018 A1 WO 2017016018A1
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WO
WIPO (PCT)
Prior art keywords
partition
flange
pipe
opening
easy
Prior art date
Application number
PCT/CN2015/088355
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English (en)
French (fr)
Inventor
聂众志
陶钶
梅智锋
Original Assignee
广东联塑科技实业有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201520561356.2U external-priority patent/CN204962152U/zh
Priority claimed from CN201510458962.6A external-priority patent/CN105042268A/zh
Application filed by 广东联塑科技实业有限公司 filed Critical 广东联塑科技实业有限公司
Publication of WO2017016018A1 publication Critical patent/WO2017016018A1/zh

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    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D11/00—Other component parts of water-closets, e.g. noise-reducing means in the flushing system, flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe
    • E03D11/13—Parts or details of bowls; Special adaptations of pipe joints or couplings for use with bowls, e.g. provisions in bowl construction preventing backflow of waste-water from the bowl in the flushing pipe or cistern, provisions for a secondary flushing, for noise-reducing
    • E03D11/17—Means for connecting the bowl to the flushing pipe
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum

Definitions

  • This patent relates to the field of drain pipe components, and more particularly to a pipe flange provided with a partition that can be used for drain pipe tightness testing.
  • the drainage pipeline system and the various equipments that are connected to the pipeline system are constructed in stages. After the drainage piping system is installed, the water sealing performance of the entire system needs to be tested. During the test, the interface between the piping system and various equipment needs to be sealed.
  • the nozzle connected to the toilet is generally provided with a flange that connects to the toilet.
  • a flange that connects to the toilet.
  • the first type of flange is an open structure.
  • the airbag is placed in the middle of the flange to allow the airbag to inflate and expand to achieve the effect of sealing the water.
  • the operation steps in this way are complicated, and it is required to be installed one by one on each floor, and the construction cost is large, and the sealing performance is often not guaranteed due to the precision of the shape of the airbag and the flange opening.
  • the second is to set up a test partition in the middle of the flange opening.
  • the partition is injection molded together with the flange body, and the partition completely seals the opening of the flange.
  • the test panel is hammered with a hammer and then connected to the toilet, as in the US Pat. No. 5,377,361, US Pat. No. 6,637,464 B1, and the disclosure of the specification of US Patent Publication No. 2005/0138722 A1, US 2007/0226884 A1.
  • This method has low production cost, convenient construction and good sealing performance. However, it is difficult to remove the separator after it is knocked open, and the sharp fracture during the removal process is easy to cut the operator's hand.
  • the thickness of the partition is generally between 0.5 and 3 mm. A certain amount of force is required to strike to separate the partition from the flange. During the tapping process, there is a possibility that the sealing condition between the members changes due to the striking force.
  • the third is an improvement based on the second method, replacing the opening of the sealing flange of the test baffle plate with a plastic film.
  • the film is cut with a knife to form a nozzle that is docked in the toilet.
  • the construction cost is low, and there is no problem of cut or blockage as described in the second scheme.
  • the production of the product needs to be completed in two processes, and the production process is complicated compared to the second method.
  • the plastic film is adhered to the flange by means of adhesive, and the sealing performance is difficult to ensure when a certain pressure is applied during the test.
  • the technical problem to be solved by the patent is to overcome the defects in the prior art and provide a stable sealing performance.
  • a flange for a pipe with a partition that is convenient to use and does not cause blockage of the pipe.
  • the patent discloses a flange for a pipe provided with a partition, and the structure thereof comprises:
  • the partitioning portion is a pull-tab structure, and includes a partition plate that closes the passage and a pull ring that is connected to one side of the partition plate. By pulling the pull ring, a partition matching the passage can be formed on the partition plate. Opening.
  • the partition part of the patent adopts an easy-opening structure, which adopts an injection molding plastic to cover the partition part, and can be integrally formed with the flange in one process, and has simple manufacture and good sealing performance.
  • the flange is installed in the pipe system where the pipe joint is reserved for other components. After the watertightness test, the entire baffle for the sealing opening can be pulled out by simply pulling up the pull ring. During operation, the separator can be easily pulled out without using a tool, and the inside of the pipe portion does not leave burrs at the fracture portion of the separator, thereby avoiding the problem of clogging the pipe during use.
  • the patent is provided on one side of the partition with at least one continuous or intermittent indentation distributed along the shape of the opening, the indentation forming a weak portion of the entire partition, such that When the separator is pulled out, the fracture can be distributed along the indentation, and the edge of the opening formed after being pulled out is smooth, further reducing the possibility of burr. In order to ensure watertightness during the test, the indentations should not penetrate the partition.
  • the opening can be distributed along the dimple, and the partition should have a high strength on the inner side of the dimple, so the patent is surrounded by the dimple on the partition. In the area, there are ribs.
  • the mounting portion is disposed at the first end of the duct portion, and the mounting portion is provided with a screw hole or a card hole that is butted against the external device, and the direction is upward after the mounting.
  • the easy-opening cover structure is disposed inside the pipe portion at the same end as the mounting portion, and the pull ring is disposed on a side surface of the partition plate facing the first end. In the structure design, the operator's hand does not need to protrude into the inside of the pipe part, and the partition plate can be conveniently pulled out, and the operation is more convenient.
  • the first end of the pipeline portion is provided with a flared joint with other pipelines, and the flared joint can be directly inserted directly with the pipeline of other equipment, and the sealing material is poured. A seal can then be formed.
  • the easy-opening structure is disposed on the side of the flared surface facing the second end of the pipe portion, and the flared structure also facilitates the operator's hand pulling out of the partition.
  • the flange In order to be able to meet the pressure of the test, the flange should have a certain pressure resistance before the opening is formed by the separator, so that the sealing function can be achieved during the test. According to the current test method, the 4-5 floor segmentation test method is generally adopted, and the easy-open cover structure should be able to withstand at least from the pull-out ring. The pressure of 0.1 MPa on the other side of the separator.
  • the pull-tab structure is capable of withstanding a pressure from 0.2 to 1 MPa from the other side of the separator facing away from the tab.
  • the large pressure resistance ensures the stability of the test process, but due to material and cost constraints, the excessive pressure causes the thickness of the partition to increase, which requires further increase of the joint strength between the tab and the spacer. More force is also required to open the partition, resulting in inconvenience in operation. Therefore, the pressure that the easy-opening structure can withstand should not be too large, and should be controlled within 1Mpa.
  • the pipe portion has a circular cross section, and the mounting portion is circumferentially distributed along the outer side of the circular pipe portion, and a circular passage is formed inside the pipe portion, and the passage is
  • the radius at the partition is R
  • the circular opening of the radius r is formed on the partition by pulling the pull ring, and 0 mm ⁇ Rr ⁇ 4 mm.
  • the difference of R-r should be controlled within 4 mm.
  • the higher the precision, the higher the processing cost, and further considering the cost of processing, the region where the above-mentioned radius difference is optimal is 0.01 mm ⁇ R - r ⁇ 2 mm.
  • the cross section of the pipe portion may not be circular, such as a rectangular cross section corresponding to the rectangular pipe, etc., and the shape of the opening should be kept consistent with the shape of the cross section of the pipe portion.
  • the shape of the opening is preferably selected such that the cross-sectional shape is deviated inward by a distance of 0.01 mm to 2 mm.
  • the pipe portion and the mounting portion are integrally molded plastic members, and the easy-open cover structure is a metal member.
  • the easy-opening structure is made of a metal material, which is advantageous for the partition portion to have higher pressure resistance at a thinner thickness, and the elongation of the metal material is also advantageous for preventing the cover plate from being broken when the cover plate is pulled out, so that the formed opening is formed. Has a smooth edge.
  • the easy-to-cover structure using metal facilitates simplification of the production process, and the easy-pull cover structure is embedded inside the duct portion while the pipe portion and the mounting portion are injection molded.
  • the manufacturing process does not require multiple processes to fix the easy-cover structure to the flange, and can be directly completed in a single injection molding process, and the process is simple. Further, in the formed product, the easy-open cover structure is embedded in the plastic inside the pipe portion and has a high sealing property.
  • the metal member is damaged by a large tensile force, and the inside of the pipe portion is injection-molded to form a support flange for supporting the easy-open cover structure.
  • An outer edge portion of the easy-open lid structure is embedded in the support flange.
  • the support flange enlarges the contact area between the pipe portion and the connection portion of the easy-open cover structure, that is, the fixing strength between the two is improved, and the easy-pull cover structure and the pipe portion can be prevented from being formed in the process of forming the opening by pulling out the partition plate.
  • the seal between them changes, ensuring the stability of the product.
  • the joint surface formed by the joint between the two different materials is a weak portion of the seal, so as to further improve the sealing performance.
  • the outer edge of the easy-opening structure of the present patent is embedded in the supporting flange portion and is tilted toward the side of the partition plate provided with the tab to form a raised portion having a starting end and an end.
  • a recess recessed away from the other side of the partition plate provided with the tab is provided.
  • the distal end of the raised portion extends deep into the support flange in a direction substantially parallel to the partition to form a platform portion.
  • the end of the platform portion is provided with a barb portion.
  • the above-mentioned cocking portion, the groove, the platform portion and the barb portion form a multi-layer sealing structure in which the easy-pull cover structure is embedded in the pipe portion, and at the same time, the fixing force of the edge of the easy-pull cover structure and the pulling force of the buffer pull ring are also improved.
  • the above four improved structures do not have to be all at the same time, and one or more measures may be selected according to the requirements of the specific production materials and the use environment.
  • the thickness of the partition of the present patent is between 0.01 mm and 1 mm.
  • the separator has an optimum thickness of between 0.05 mm and 0.5 mm.
  • the partition plate is provided with a continuous dimple distributed along the shape of the opening on the same side of the pull ring, the dimple does not penetrate the partition, and the position where the pull ring is connected to the partition is in the The inside of the indentation. This allows the entire partition to be pulled along the dent through the tab.
  • the spacer is provided with a continuous first indentation distributed along the shape of the opening on the same side of the tab, and a second indentation having an opening is provided in the first indentation.
  • the second indentation connects the first indent by the third indentation at the first end of the opening, the first indentation is not connected to the second end, and the first, second and third indentations do not penetrate the partition,
  • the position at which the tab is connected to the spacer is at a position of the second indentation opening between the first and second indentations.
  • the third indentation may be first pressed, the first and second indentations are connected, and then the tab is pulled up, and a loop is formed along the first and second recesses, The first end to the other end of the opening portion is finally formed by the other end to form an opening.
  • the arrangement of the dimples is not limited to the above two modes, and any dimple setting based on the above main basic structure belongs to the scope to be protected by the patent.
  • the patent is based on the improvement of the prior art, and adopts the separator with the easy-opening structure, which has the advantages of convenient use, simple operation, simple manufacturing process, and no serious subsequent problems. Through further structural optimization and material selection, the sealing, pressure resistance, use stability, and ease of operation are all improved.
  • the drawbacks existing in the prior art are overcome and are non-obvious.
  • Figure 1 is a front elevational view of Embodiment 1 of the present patent.
  • Figure 2 is a schematic view of the structure of Figure 1 with the cover removed.
  • Figure 3 is a side view of Embodiment 1 of the present patent.
  • Figure 4 is a cross-sectional view of Figure 3.
  • FIG. 5 is a schematic structural view of a pull-tab structure according to Embodiment 1 of the present patent.
  • Figure 6 is an enlarged view of a portion D of Figure 4.
  • Figure 7 is an enlarged view of a portion C of Figure 4.
  • FIG. 8 is a first use state diagram of the first embodiment of the present patent.
  • FIG. 9 is a second diagram of the use state of the first embodiment of the present patent.
  • FIG. 10 is a schematic structural view of a pull-tab structure according to Embodiment 2 of the present patent.
  • FIG. 11 is a schematic structural view of a pull-tab structure according to Embodiment 3 of the present patent.
  • FIG. 12 is a schematic structural view of a pull-tab structure according to Embodiment 4 of the present patent.
  • Figure 13 is a front elevational view of Embodiment 5 of the present patent.
  • Figure 14 is a side cross-sectional view of Figure 13 .
  • FIG. 15 is a schematic structural view of a pull-tab structure according to Embodiment 5 of the present patent.
  • Figure 16 is an enlarged view of a portion E of Figure 14.
  • Figure 17 is a view showing the state of use of the fifth embodiment of the present patent.
  • Figure 18 is an enlarged cross-sectional view showing a portion of the outer peripheral edge of the easy-opening structure of the embodiment of the present invention embedded in the pipe portion.
  • Figure 19 is an enlarged cross-sectional view showing a portion of the outer peripheral edge of the easy-opening structure of the seventh embodiment of the present invention embedded in the pipe portion.
  • Figure 20 is an enlarged cross-sectional view showing a portion of the outer periphery of the easy-opening structure of the embodiment of the present invention embedded in the pipe portion.
  • a flange for a pipe provided with a partition, the structure of which includes:
  • a duct portion 100 has a first end 101 and a second end 102, and a passage 103 is formed inside the duct portion 100.
  • the conduit portion 100 is circular in cross section and the passage 103 is a circular passage.
  • the second end 102 of the duct portion 100 interfaces with a duct system (not shown) for interfacing with an upper level device (not shown).
  • the upper layer device such as a toilet or the like, is temporarily not docked with the first end 101 after the pipe system is installed and before the test.
  • a mounting portion 200 disposed at the first end 101 of the duct portion 100, the mounting portion 200 being circumferentially distributed along the outer side of the circular duct portion 100 to form a circular crown mounting platform.
  • the mounting portion 200 is provided with a card position and a screw locking hole 201 for docking with the upper device.
  • a partition portion that closes the passage 103 is disposed inside the duct portion 100.
  • the partition portion is a pull-tab structure 300, and includes a partition 302 that closes the passage 103 and a tab 301 that is connected to one side of the partition 302.
  • an opening 303 matching the passage 103 can be formed on the partition 301 by pulling the pull ring 302, as shown in FIG. This makes it possible to form a flange structure having a through passage 103 which can be interfaced with the upper equipment.
  • the pipe portion 100 and the mounting portion 200 are integrally injection molded plastic members, and the easy-open cover structure 300 is a metal member, specifically a stamped iron plate or an aluminum plate.
  • the easy-open cover structure 300 is embedded inside the duct portion 100 while the pipe portion 100 and the mounting portion 200 are injection molded.
  • the specific process may be that the easy-open cover structure 300 is first positioned in the injection mold, and then the heated fluid plastic is injected into the injection mold. After the plastic is cooled, the easy-open cover structure 300 is embedded and fixed in the pipe portion 100 and the In the plastic part of the mounting portion 200.
  • the process is formed at one time, and the production is simple and convenient, and the plastic parts and the metal parts are closely matched after molding, and the sealing property is high.
  • the embodiment has a continuous annular indentation 304 distributed along the shape of the opening 303 on a side A of the partition 302. Opening 303 is formed along the indentation 304, as shown in FIG. In order to ensure the tightness at the time of testing, the indentations 304 do not penetrate the partition 302.
  • the indentation 304 can be machined or rolled on one side of the partition 302, and the depth and shape can be adjusted according to actual needs.
  • the pull-tab structure 300 is disposed inside the duct portion 100 at the same end as the mounting portion 200, and the tab 301 is disposed on a side surface A of the partition 302 facing the first end 101.
  • the partition 302 is at the port of the conduit outlet to facilitate the operation of the operator to pull the partition 302 apart.
  • the first end 101 of the duct portion 100 is provided with a flare 105 that interfaces with a pipe below the toilet.
  • the easy-open cover structure 300 is disposed on a side of the flare 105 facing the second end 102 of the duct portion, that is, as shown in FIG. 6, the easy-open cover structure 300 is disposed below the flare 105.
  • the inside of the pipe portion 100 is injection molded to form a support for supporting the easy-open cover structure 300.
  • the flange 106 as shown in FIG. 6, has an outer edge portion of the pull-tab structure 300 embedded within the support flange 106.
  • the support flange 106 enlarges the contact area of the joint portion of the pipe portion 100 and the easy-open cover structure 300, that is, the fixing strength between the two is increased, and the pull-out of the partition 302 to form the opening 303 can be prevented from being easily pulled.
  • the seal between the cover structure 300 and the pipe portion 100 changes, ensuring the stability of product use.
  • the outer edge of the easy-open cover structure 300 is erected along the side of the embedded support flange 106 and the side of the partition 302 is provided with the pull ring 301 to form the lifted portion 320, that is, Tilting toward the A side, the tilting portion 320 has a beginning end 321 and an end end 322.
  • a recess 330 recessed away from the partition plate 302 in the other side direction of the tab 301 is provided, that is, recessed toward the B side.
  • the end 322 of the raised portion 320 extends deep into the support flange 106 in a direction substantially parallel to the partition 302 to form a platform portion 340, and the end of the platform portion 340 is provided with a barb portion 341.
  • the groove 330, the raised portion 320, the platform portion 340 and the barb 341 are embedded in the injection molding forming support flange 106 to form a labyrinth seal structure, which improves the fixing force and the sealing property between the members.
  • the entire easy-opening structure 300 is stamped and formed by a whole piece of sheet metal, and the whole is a concave bowl-like structure.
  • the direction of the force is directed to the A side, that is, the direction of the force is from the bottom of the bowl structure to the bowl structure.
  • a downward groove 330 is provided at the junction of the cocking portion 320 and the partition 302 to enhance the bottom edge of the bowl structure and to cushion the force. All of the above structural designs can reduce the force deformation of the easy-open cover structure 300 during the stressing process of the easy-open cover structure 300, and ensure the sealing performance of the product.
  • the flange After the installation of the piping system, the flange is in a sealed state. When the watertightness test is performed, the flange is subjected to pressure from the inside of the piping system, that is, the pressure from the B side to the A side. In order to ensure that testing is possible, the frangible easy-opening structure 300 of the flange should be able to withstand a certain pressure.
  • the easy-opening structure 300 is capable of withstanding at least a pressure of 0.4 MPa from the other side of the partition 302 facing away from the tab 301, that is, the B side.
  • the separator 302 is formed by stamping an aluminum plate, specifically to the parameters of the separator 302, and has a thickness d of 0.2 mm.
  • the opening 303 can be formed by pulling the spacer 302 through the tab 301 for convenience, and no burr is formed at the opening 303, and an annular recess 304 is provided on the spacer 302.
  • the indentation 304 is preferably the same as the radius R of the channel 103 in the conduit portion 100 at the partition 302, i.e., the inner diameter of the support flange 106. The opening 303 thus formed can be maximized.
  • the partition 302 is opened by the pull ring 301 to form an opening 303, so that the passage 103 is penetrated.
  • the position at which the tab 301 is coupled to the spacer 302 is inside the indentation 304.
  • the pull ring 301 is pulled up, the front end of the pull ring 301 is pressed against the indent 304, and the partition 302 is broken along the indentation 304 under pressure to form a fracture, as shown in FIG.
  • the ring portion at the rear of the pull ring 301 is pulled up, as shown in FIG.
  • the fracture can continue to expand along the dimple 304, and finally the partition 302 is pulled to form the opening 303. Then, the toilet is installed above, and the locking mechanism is fixed by the locking mechanism such as a screw and the locking portion 201 of the mounting portion 200 of the flange, and the sealing material is poured on the flare 105. finish installation.
  • reinforcing ribs may be provided on the partition 302 in a region surrounded by the dimples 304.
  • the distribution of the ribs can be arranged in a variety of ways, as exemplified below.
  • two parallel linear reinforcing ribs 311 are provided along the direction in which the partition plate 302 is pulled apart.
  • a split ring-shaped reinforcing rib 312 is distributed along the inner side of the dimple 304.
  • the style of the rib is not limited to the above structure, and may be set according to a specific separator material and thickness.
  • the general rib is pressed and formed on the separator by a stamping die.
  • the overall structure of this embodiment is similar to that of Embodiment 1, and the flange for a pipe provided with a partition plate shown in FIGS. 13 and 14 has a structure including: a pipe portion 100 having a first end 101 and a second end 102, A passage 103 is formed inside the duct portion 100.
  • the conduit portion 100 is circular in cross section and the passage 103 is a circular passage.
  • a mounting portion 200 disposed at the first end 101 of the duct portion 100, the mounting portion 200 being circumferentially distributed along the outer side of the circular duct portion 100 to form a circular crown mounting platform.
  • the mounting portion 200 is provided with a card position and a screw locking hole 201 for docking with the upper device.
  • a partition portion that closes the passage 103 is disposed inside the duct portion 100.
  • the partition portion is a pull-tab structure 300, and includes a partition 302 that closes the passage 103 and a tab 301 that is connected to one side of the partition 302.
  • the spacer 302 is provided with a continuous first indentation 305 distributed along the shape of the opening 302 on the same side A of the tab 301, in the first recess A second indentation 306 having an opening is formed in the mark 305.
  • the second indentation 306 connects the first indent 305 through the third indent 307 at the first end of the opening, and the first indentation 305 is not connected to the second end.
  • the first indentation 305, the second indentation 306, and the third indentation 307 do not penetrate the partition 302, and the position where the tab 301 is connected to the partition 302 is at the first indentation 305 and the second indentation
  • the second indentation 306 between the marks 306 is open Mouth position.
  • the easy-open cover structure 300 can withstand at least a pressure of 0.2 MPa from the other side of the partition 302 facing away from the tab 301, that is, the B side.
  • the separator 302 is formed by iron sheet stamping, specifically to the parameters of the separator 302, and has a thickness d of 0.1 mm.
  • the first indentation 305 is not exactly the same as the radius R of the channel 103 in the conduit portion 100 at the partition 302.
  • the partition 302 is pulled through the tab 301 to form an opening, so that the passage 103 is penetrated.
  • the spacer 302 is pressed by the lifting tab 301, and the third indentation 307 can be first pressed, the first indentation 305 and the second indentation 306 are connected, and then the tab 301 is pulled up.
  • a dimple 305 and a second recess 306 form an annular band which is pulled up from the first end to the other end of the opening, and finally the opening is taken out through the other end to form an opening.
  • the toilet is installed above, and the locking mechanism is fixed by the locking mechanism such as a screw and the locking portion 201 of the mounting portion 200 of the flange, and the sealing material is poured on the flare 105, and the filling is completed.
  • the outer portion of the easy-open cover structure 300 may have various structures along the portion embedded in the duct portion 100, as shown in the following embodiments.
  • FIG. 18 a cross-sectional enlarged view of a portion in which the outer edge of the easy-pull structure 300 is embedded in the duct portion 100 is shown.
  • the outer cover structure 300 is lifted along the side of the embedded support flange 106 toward the side of the partition 302 where the pull ring 301 is provided to form a lifted portion 320, that is, tilted toward the A side, and the lifted portion 320 has a start end. 321 and an end 322.
  • a recess 330 recessed away from the partition plate 302 in the other side direction of the tab 301 is provided, that is, recessed toward the B side.
  • the separator 302 is formed by stamping an aluminum plate, specifically to the parameters of the separator 302, and has a thickness d of 0.3 mm.
  • FIG. 19 a cross-sectional enlarged view of a portion in which the outer edge of the easy-open cover structure 300 is embedded in the duct portion 100 is shown.
  • the outer portion of the easy-open cover structure 300 extends along the portion of the embedded support flange 106 to the depth of the support flange 106.
  • the separator 302 is formed by stamping with a copper plate, specifically to the parameters of the separator 302, and has a thickness d of 0.05 mm.
  • a cross-sectional enlarged view of a portion in which the outer edge of the easy-to-cover structure 300 is embedded in the duct portion 100 is shown.
  • the pipe portion 100 is not provided with a support flange, and the outer portion of the easy-open cover structure 300 extends into a depth in the side wall of the pipe portion 100 to a depth of the side wall, and a barb 341 is provided at an end thereof.
  • the separator 302 is stamped and formed by an aluminum plate, specifically to the parameters of the separator 302, and has a thickness d of 0.05 mm.

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Abstract

提供一种密封性能稳定、使用方便且不会造成管道阻塞的设有隔板的管道用法兰。其结构包括：一个管道部（100），具有第一端（101）和第二端（102），一通道（103）形成于所述管道部内侧，设置在管道部（100）外侧周边的安装部（200），设置在管道部（100）内侧封闭所述通道的隔断部（300），所述隔断部（300）为易拉盖结构，包括一封闭所述通道的隔板（302）和连接在隔板（302）一侧面上的拉环（301），通过拉动拉环（301）能够在所述隔板（302）上形成一个与所述通道（103）相匹配的开口（303）。该管道用法兰涉及排水管道构件领域，采用易拉盖结构的隔板，具有使用方便，操作简单，制作工艺简单，不会导致不良后续问题等优点。

Description

一种设有隔板的管道用法兰 技术领域
本专利涉及排水管道构件领域，更具体的说是一种可用于排水管道密封性测试的设置有隔板的管道用法兰。
背景技术
目前国内外的建筑工程施工中，排水管道系统和户内与管道系统对接的各种设备是分阶段施工的。排水管道系统安装完成之后，需要对整个系统的水密封性能进行测试。在测试过程中，管道系统与各种设备的对接接口需要进行密封。
以与坐便器连接的管口为例，该管口一般设置有一个连接坐便器的法兰。为保证能有效地测试排水管道系统的密封性能，用于密封连接坐便器的法兰主要方式有以下三种：
第一种法兰为敞口结构，测试时在法兰中间放进气囊，让气囊充气后膨胀实现封水的效果。这种方式操作步骤较复杂，需要在每个楼层进行逐一安装，施工成本大，而且由于气囊的形状与法兰敞口配合的精密度限制，密封性能往往不能保证。
第二种是在法兰敞口中间设置一测试用隔板，隔板与法兰主体一起注塑成型，隔板完全密封法兰的敞口。测试后用锤子敲开测试板再进行与坐便器的连接，如美国专利号为US5,377,361，US6,637,464B1，以及公开号为US2005/0138722A1，US2007/0226884A1的技术方案。这种方式生产成本低，施工方便，密封性能好。但隔板敲开后容易掉进管里很难取出，而且取出的过程中锐利的断口容易割伤操作者的手。另外隔板被敲开后断口处会残留一定的毛刺，这就使得在以后的使用过程中，毛刺容易勾住纸巾等杂物，严重时会造成管道堵塞。还有就是保证能达到管道系统的测试时所能承受的压力，隔板厚度一般在0.5～3mm之间。敲打时需要达到一定的力度才能使隔板与法兰断裂分离，在敲打过程中存在因敲击力导致构件之间密封情况发生变化的可能性。
第三种是在第二种方式基础上的改良，用塑料薄膜代替测试用隔板板密封法兰的敞口。测试后用小刀划开薄膜形成于坐便器对接的管口，这种方式施工成本低，不会存在第二种方案所述的割伤或堵塞问题。但该产品生产需要分两道工艺完成，生产工艺相对于第二种方式复杂。另外塑料薄膜采用黏胶的方式与法兰贴合，其在测试过程中，施加一定压力的情况下，其密封性能很难保证。
发明内容
本专利所要解决的技术问题是克服现有技术中的缺陷，提供一种密封性能稳定、 使用方便且不会造成管道阻塞的设有隔板的管道用法兰。
本专利通过以下技术方案实现上述目的。
本专利公开了一种设有隔板的管道用法兰，其结构包括：
一个管道部，具有第一端和第二端，一通道形成于所述管道部内侧，
设置在管道部外侧周边的安装部，
设置在管道部内侧封闭上述通道的隔断部，
所述隔断部为易拉盖结构，包括一封闭上述通道的隔板和连接在隔板一侧面上的拉环，通过拉动拉环能够在所述隔板上形成一个与所述通道相匹配的开口。
本专利的隔断部采用易拉盖结构，该结构使用注塑塑料包覆隔断部，可以与法兰在一道工艺中一体成型，制作简单且密封性良好。该法兰安装在管道系统中预留与其他构件对接的管口处，经过水密性测试后，只需拉起拉环，即可以将整个用于密封开口的隔板拉出。操作过程中，无需使用工具就可以简易的拉出隔板，而且管道部内侧不会在隔板的断口部位残留毛刺，这就避免了使用过程中阻塞管道的问题。
为了方便通过拉环拉出隔板，本专利在所述隔板的一侧面上设置有至少一条沿所述开口形状分布的连续或间断的凹痕，凹痕形成整个隔板的弱部，使得拉出隔板时，断口能够沿凹痕分布，拉出后所形成的开口边缘光滑，进一步减少产生毛刺的可能性。为了保证测试的过程中的水密性，所述凹痕不应贯穿隔板。
为防止隔板在拉出的过程中断裂，保证开口能够沿凹痕分布，隔板在凹痕内侧应具有较高的强度，因此本专利在所述隔板上、所述凹痕围成的区域内，设有加强筋。
为了方便与坐便器等外部设备对接，所述安装部设置在所述管道部的第一端，安装部上开设有与外部设备对接的螺孔或卡孔等结构，安装之后方向朝上。为了方便拉出隔板，所述易拉盖结构设置在与安装部同一端的管道部内侧，所述拉环设置在隔板上面向所述第一端的一侧面上。这种结构设计在使用的过程中，操作者的手无需伸入管道部内部，能够方便的拉出隔板，操作更加便利。
在上述结构中，为了方便与外部设备下侧的管道的对接，所述管道部第一端设有与其他管道对接的扩口，扩口可以直接与其他设备的管道直接插接，灌注密封材料之后能够形成密封部。当然，为了方便操作，所述易拉盖结构设置在所述扩口面向管道部第二端的一侧，扩口的结构也有利于操作者的手拉出隔板。
为了能够满足测试的压力，法兰在未拉开隔板形成开口前，应具有一定的耐压性，这样在测试的过程中，才能起到密封的作用。根据现在的测试方法，一般采用4-5层楼分段测试的方式，所述易拉盖结构应至少能够承受来自背离拉环的 隔板的另一侧面的0.1Mpa的压强。
更佳的方式是所述易拉盖结构能够承受来自背离拉环的隔板的另一侧面的压强在0.2～1Mpa之间。较大的耐压能力保证了测试过程的稳定性，但是由于材料和成本的限制，压力过大会导致隔离部的厚度的增加，这就需要进一步增加拉环和隔板之间的连接强度，同时也需要更大的力来拉开隔板，导致操作的不方便。因此，易拉盖结构所能承受的压力也不应过大，应控制在1Mpa以内为佳。
为适应现有建筑通用的圆形管道结构，所述管道部横截面为圆形，所述安装部沿所述圆形管道部外侧周向分布，所述管道部内侧形成圆形通道，通道在隔板处的半径为R，拉动拉环在所述隔板上形成的半径为r的圆形开口，0mm≤R-r≤4mm。理论上，圆形开口最好能够完全与隔板处的圆形通道的形状匹配，即R-r＝0mm，但由于加工精度差异，很难能够做到完全匹配。从使用效果上来说，隔板上的开口应尽量大，考虑到所述的加工精度问题，R-r的差值应控制在4mm以内。由于精度越高，加工成本越高，进一步考虑加工的成本问题，所述上述半径差最佳的区域是0.01mm≤R-r≤2mm。
根据实际的应用环境，所述管道部横截面也可以不是圆形，如对应矩形管道的矩形截面等等，所述开口的形状应保持与管道部横截面的形状一致。基于上述的加工精度和成本问题，开口的形状最佳选择是横截面形状向内偏离0.01mm～2mm的距离。
根据上述的结构特点及现有的管道的加工技术，在材料选择方面，所述管道部和所述安装部为一体注塑成型的塑料构件，所述易拉盖结构为金属构件。易拉盖结构采用金属材料制作，这样有利于隔断部在更薄的厚度下具有更高的抗压力，金属材料的延伸性还有利于防止拉出盖板时盖板断裂，使所形成的开口具有光滑边缘。进一步的，采用金属的易拉盖结构有利于简化生产工艺，所述易拉盖结构在所述管道部和所述安装部注塑成型的同时嵌入所述管道部内侧。这样制作过程无需多道工艺将易拉盖结构固定到法兰上，可以在一次注塑工艺中直接完成，工艺简单。而且所形成的产品中，所述易拉盖结构是嵌入到管道部的内侧的塑料内，具有很高的密封性。
为了防止易拉盖结构在拉出盖板的过程中，金属构件在大拉力作用下给塑料构件造成损害，所述管道部内侧注塑形成用于支撑所述易拉盖结构的支撑凸缘，所述易拉盖结构的外沿部分嵌入所述支撑凸缘内。支撑凸缘加大了管道部与易拉盖结构的连接部位的接触面积，即提高了两者间的固定强度，可以防止在拉出隔板形成开口的过程中，易拉盖结构与管道部之间的密封性出现变化，保证了产品使用的稳定性。
由于管道部与易拉盖结构为不同的材料，两种不同材料之间的结合处所形成的接合面为密封性的弱部，为进一步提高密封性能。本专利所述易拉盖结构外沿嵌入支撑凸缘部分朝隔板设有拉环的一侧方向翘起形成翘起部，翘起部具有一始端和一末端。
进一步的在所述翘起部的始端处设有背离隔板设有拉环的另一侧方向下凹的凹槽。
进一步的所述翘起部的末端沿基本平行于所述隔板的方向深入支撑凸缘延伸形成平台部。
进一步的所述平台部的末端设有倒钩部。
上述翘起部、凹槽、平台部及倒钩部形成了易拉盖结构嵌入管道部内的多层密封结构，同时也起到提高易拉盖结构边缘的固定力和缓冲拉环拉力作用。上述四个改良结构并不是必须全部都需同时具备，可以根据具体的制作材料和使用环境的要求，选择一个或多个措施适用。
为了保证抗压力并且同时方便操作者可以方便的拉出隔板形成开口，本专利所述隔板的厚度在0.01mm～1mm之间。所述隔板最佳的厚度在0.05mm～0.5mm之间。
上述凹痕的设置方式有多种样式，以下为两种优选的方式：
一种是在所述隔板在与拉环的同一侧面上设置一条沿所述开口形状分布的连续凹痕，所述凹痕不贯穿隔板，所述拉环与隔板连接的位置在所述凹痕内侧。这样通过拉环可以沿凹痕拉出整个隔板。
另一种是在所述隔板在与拉环的同一侧面上设置一条沿所述开口形状分布的连续的第一凹痕，在第一凹痕内设有具有开口部的第二凹痕，第二凹痕在开口部的第一端通过第三凹痕连接第一凹痕，第二端不连接第一凹痕，所述第一、第二和第三凹痕不贯穿隔板，所述拉环与隔板连接的位置在所述第一和第二凹痕之间的第二凹痕开口部位置。通过翘起拉环压制隔板，可以首先压开第三凹痕，使第一和第二凹痕联通，然后拉起拉环，沿第一和第二凹槽形成一条环带拉起，从开口部的第一端至另一端，最后通过另一端带出隔板形成开口。
当然所述凹痕的设置并不局限于上述两种方式，任何基于上述主要基本结构的凹痕设置均属于本专利所要保护的范围。
综上所述，本专利基于现有技术的改良，采用易拉盖结构的隔板，具有使用方便，操作简单，制作工艺简单，不会导致不良后续问题等优点。通过进一步的结构优化和材料的选择，使密封性、抗压能力、使用稳定性、操作便利性等方面均得以改良。克服了现有技术中存在的缺陷，具有非显而易见性。
附图说明
图1为本专利实施例1的正视图。
图2为图1结构去除盖板后的示意图。
图3为本专利实施例1的侧视图。
图4为图3为剖视图。
图5为本专利实施例1的易拉盖结构的结构示意图。
图6为图4中D部分的放大图。
图7为图4中C部分的放大图。
图8为本专利实施例1的使用状态图一。
图9为本专利实施例1的使用状态图二。
图10为本专利实施例2的易拉盖结构的结构示意图。
图11为本专利实施例3的易拉盖结构的结构示意图。
图12为本专利实施例4的易拉盖结构的结构示意图。
图13为本专利实施例5的正视图。
图14为图13的侧视剖视图。
图15为本专利实施例5的易拉盖结构的结构示意图。
图16为图14中E部分的放大图。
图17为本专利实施例5的使用状态图。
图18为本专利实施例6易拉盖结构外沿嵌入管道部的部分的剖视放大图。
图19为本专利实施例7易拉盖结构外沿嵌入管道部的部分的剖视放大图。
图20为本专利实施例8易拉盖结构外沿嵌入管道部的部分的剖视放大图。
具体实施方式
以下结合附图举例对本专利的发明构思做进一步的说明。
实施例1
如图1，图2，图3和图4所示的一种设有隔板的管道用法兰，其结构包括：
一个管道部100，具有第一端101和第二端102，一通道103形成于所述管道部100内侧。为与现有的通用管道相配合，所述管道部100横截面为圆形，所述通道103为圆形通道。管道部100的第二端102与管道系统(图中未示出)对接，第一端101用于与上层设备(图中未示出)对接。在管道系统安装之后、测试之前，所述上层设备，如坐便器等，暂时未与所述第一端101对接。
一设置在所述管道部100第一端101处的安装部200，所述安装部200沿所述圆形管道部100外侧周向分布，形成圆形冠状安装平台。所述安装部200上设置有与上层设备对接之用的卡位和螺丝锁紧孔201。
一设置在管道部100内侧封闭上述通道103的隔断部，所述隔断部为易拉盖结构300，包括一封闭上述通道103的隔板302和连接在隔板302一侧面上的拉环301。所述管道系统经过水密性测试后，通过拉动拉环302能够在所述隔板301上形成一个与所述通道103相匹配的开口303，如图2所示。这样便可以形成具有贯通通道103的法兰结构，可以与上层设备进行对接。
所述管道部100和所述安装部200为一体注塑成型的塑料构件，所述易拉盖结构300为金属构件，具体来说是冲压成型的铁板或铝板。所述易拉盖结构300在所述管道部100和所述安装部200注塑成型的同时嵌入所述管道部100内侧。具体工艺可以是先将易拉盖结构300定位于注塑模具中，然后再注塑模具内注入加热后的流体塑料，等塑料冷却后，易拉盖结构300便嵌入固定于包括管道部100和所述安装部200的塑料部件中。该工艺一次成型，制作简单方便，成型后塑料部件与金属部件之间配合紧密，密封性高。
为了能够方便操作者拉出所述隔板302，本实施例在所述隔板302的一侧面A上刻有一条沿所述开口303形状分布的连续的圆环形凹痕304，隔板302沿凹痕304拉开即形成开口303，结合图5所示。为了保证测试时的密封性，所述凹痕304不贯穿隔板302。所述凹痕304可以采用金属雕刻或碾压方式在隔板302的一侧面上加工出来，深度和形状可以依据实际需要进行调整。
所述易拉盖结构300设置在与安装部200同一端的管道部100内侧，所述拉环301设置在隔板302上面向所述第一端101的一侧面A上。这样安装在管道系统上以后，所述隔板302在管道出口的端口处，方便操作者拉开隔板302的操作。另外，结合图2和图6所示，为了方便与上层设备，如坐便器等，进行对接，所述管道部100第一端101设有与坐便器下方管道对接的扩口105。所述易拉盖结构300设置在所述扩口105面向管道部第二端102的一侧，即如图6所示，易拉盖结构300设置在所述扩口105的下方。
为了防止易拉盖结构300在拉出盖板302的过程中，金属构件在大拉力作用下给塑料构件造成损害，所述管道部100内侧注塑形成用于支撑所述易拉盖结构300的支撑凸缘106，如图6所示，所述易拉盖结构300的外沿部分嵌入所述支撑凸缘106内。支撑凸缘106加大了管道部100与易拉盖结构300的连接部位的接触面积，即提高了两者间的固定强度，可以防止在拉出隔板302形成开口303的过程中，易拉盖结构300与管道部100之间的密封性出现变化，保证了产品使用的稳定性。
为进一步保证密封性能，结合图7所示，所述易拉盖结构300外沿嵌入支撑凸缘106部分朝隔板302设有拉环301的一侧方向翘起形成翘起部320，即 朝A侧翘起，翘起部320具有一始端321和一末端322。在所述翘起部320的始端321处设有背离隔板302设有拉环301的另一侧方向下凹的凹槽330，即朝B侧下凹。所述翘起部320的末端322沿基本平行于所述隔板302的方向深入支撑凸缘106延伸形成平台部340，所述平台部340的末端设有倒钩部341。所述凹槽330，翘起部320，平台部340和倒钩341嵌在所述注塑形成支撑凸缘106内形成迷宫式密封结构，提高了构件之间固定力和密封性。整个易拉盖结构300通过一整片金属板材冲压弯曲成型，整体为一下凹的碗状结构。在使用的过程中，无论是测试时受到的压力，还是拉开隔板302时所受的拉力，受力方向均朝A侧，即受力方向是从碗状结构的底部向碗状结构的内侧。另外在翘起部320和隔板302连接处设置有向下的凹槽330，起到加强碗状结构底部边缘和缓冲受力的作用。上述这些结构设计，均可以在易拉盖结构300的受力过程中，起到减少易拉盖结构300受力变形的作用，保证了产品的密封性能。
管道系统安装完毕之后，所述法兰处于密封状态，进行水密性测试时，法兰受到来自管道系统内部的压力，即受到从B侧向A侧的压力。为了保证能够进行测试，所述法兰的隔板易拉盖结构300应能够承受一定的压力。在本实施例中，所述易拉盖结构300至少能够承受来自背离拉环301的隔板302的另一侧面，即B侧，的0.4Mpa的压强。所述隔板302采用铝板冲压成型，具体到隔板302的参数，其厚度d为0.2mm。
如上所述，为了方便能够通过拉环301拉出隔板302形成开口303，并且开口303处不会形成毛刺，在所述隔板302上设置有圆环形凹痕304。如上分析，所述凹痕304最好能够与管道部100内通道103在隔板302处的半径R相同，即支撑凸缘106的内径。这样所形成的开口303才能最大化。但由于加工的精度和成本的问题，本实施例中所述拉动拉环301在所述隔板302上形成的圆形开口303的半径为r不可能完全与R一致，所述差值R-r＝1mm，如图5和图7所示，即所述凹痕304与支撑凸缘106的内侧壁104的距离为1mm。
经过密封性测试后，当需要安装坐便器等设备的时候，需通过拉环301拉开隔板302形成开口303，使所述通道103贯通。如图8和图9所示，所述拉环301与隔板302连接的位置在所述凹痕304内侧。操作的时候，通过手拉起所述拉环301，使拉环301的前端压制所述凹痕304，隔板302在压力作用下沿凹痕304断裂，形成断口，如图8所示。然后拉动拉环301后部的环部向上拉起，如图9所示，则断口可以沿凹痕304继续扩大，最后拉开隔板302形成开口303。然后再上方安装坐便器，通过螺丝等锁紧机构与法兰的安装部200上卡位和螺丝锁紧孔201进行固定，在所述扩口105上灌注密封材料，填料后 完成安装。
为了提高隔板302的强度，防止在拉开的过程中断裂，可以在所述隔板302上、所述凹痕304围成的区域内，设有加强筋。所述加强筋的分布设置可以有多种方式，以下举例说明。
实施例2
如图10所示，在所述易拉盖结构300的中间，设置有两条平行的，沿隔板302拉开方向的直线型加强筋311。
实施例3
如图11所示，在所述易拉盖结构300的中间，沿凹痕304内侧分布有开口环型加强筋312。
实施例4
如图12所示，在所述易拉盖结构300的中间，设置有两条平行的，沿隔板302拉开方向的直线型加强筋311，同时沿凹痕304内侧分布有开口环型加强筋312。
加强筋的样式不局限于上述结构，可以根据具体的隔板材料和厚度设定，一般加强筋是通过冲压模具在隔板上进行压制成型。
实施例5
本实施例的整体结构与实施例1相似，结合图13和14所示的设有隔板的管道用法兰，其结构包括：一个管道部100，具有第一端101和第二端102，一通道103形成于所述管道部100内侧。为与现有的通用管道相配合，所述管道部100横截面为圆形，所述通道103为圆形通道。
一设置在所述管道部100第一端101处的安装部200，所述安装部200沿所述圆形管道部100外侧周向分布，形成圆形冠状安装平台。所述安装部200上设置有与上层设备对接之用的卡位和螺丝锁紧孔201。
一设置在管道部100内侧封闭上述通道103的隔断部，所述隔断部为易拉盖结构300，包括一封闭上述通道103的隔板302和连接在隔板302一侧面上的拉环301。
与实施例1的区别，可进一步参考图15和16，隔板302在与拉环301的同一侧面A上设置一条沿所述开口302形状分布的连续的第一凹痕305，在第一凹痕305内设有具有开口部的第二凹痕306，第二凹痕306在开口部的第一端通过第三凹痕307连接第一凹痕305，第二端不连接第一凹痕305，所述第一凹痕305、第二凹痕306和第三凹痕307不贯穿隔板302，所述拉环301与隔板302连接的位置在所述第一凹痕305和第二凹痕306之间的第二凹痕306开 口部位置。所述第二凹痕306平行于第一凹痕305，两者半径差r1-r2＝5mm。
在本实施例中，所述易拉盖结构300至少能够承受来自背离拉环301的隔板302的另一侧面，即B侧，的0.2Mpa的压强。所述隔板302采用铁板冲压成型，具体到隔板302的参数，其厚度d为0.1mm。
由于加工的精度和成本的问题，所述第一凹痕305不能够与管道部100内通道103在隔板302处的半径R完全相同。本实施例中所述第一凹痕305与支撑凸缘106的内侧壁104的距离为R-r1＝0.5mm。
经过密封性测试后，当需要安装坐便器等设备的时候，需通过拉环301拉开隔板302形成开口，使所述通道103贯通。如图17所示，通过翘起拉环301压制隔板302，可以首先压开第三凹痕307，使第一凹痕305和第二凹痕306联通，然后拉起拉环301，沿第一凹痕305和第二凹槽306形成一条环带拉起，从开口部的第一端至另一端，最后通过另一端带出隔板形成开口。然后再上方安装坐便器，通过螺丝等锁紧机构与法兰的安装部200上卡位和螺丝锁紧孔201进行固定，在所述扩口105上灌注密封材料，填料后完成安装。
所述易拉盖结构300外沿嵌入管道部100的部分可以有多种结构，具体如下实施例所示。
实施例6
如图18所示的，为易拉盖结构300外沿嵌入管道部100的部分的剖视放大图。所述易拉盖结构300外沿嵌入支撑凸缘106部分朝隔板302设有拉环301的一侧方向翘起形成翘起部320，即朝A侧翘起，翘起部320具有一始端321和一末端322。在所述翘起部320的始端321处设有背离隔板302设有拉环301的另一侧方向下凹的凹槽330，即朝B侧下凹。本实施例中所述凹痕304与支撑凸缘106的内侧壁104的距离为R-r＝0.1mm。所述隔板302采用铝板冲压成型，具体到隔板302的参数，其厚度d为0.3mm。
实施例7
如图19所示的，为易拉盖结构300外沿嵌入管道部100的部分的剖视放大图。所述易拉盖结构300外沿嵌入支撑凸缘106部分延伸至支撑凸缘106的深处。本实施例中所述凹痕304与支撑凸缘106的内侧壁104的距离为R-r＝1.5mm。所述隔板302采用铜板冲压成型，具体到隔板302的参数，其厚度d为0.05mm。
实施例8
如图20所示的，为易拉盖结构300外沿嵌入管道部100的部分的剖视放大图。所述管道部100未设置支撑凸缘，所述易拉盖结构300外沿嵌入管道部100的侧壁内的部分延伸至所述侧壁的深处，并在其末端设有倒钩341。本实施例中 所述凹痕304与管道部100的内侧壁104的距离为R-r＝0mm，即拉出隔板302形成开口的半径与管道部100的通道103完全相同。所述隔板302采用铝板冲压成型，具体到隔板302的参数，其厚度d为0.05mm。
上述附图中描述位置关系的用于仅用于示例性说明，不能理解为对本专利的限制；显然，本专利的上述实施例仅仅是为清楚地说明本实用新型所作的举例，而并非是对本专利的实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。凡在本专利的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本专利权利要求的保护范围之内。

Claims (19)

  1. 一种设有隔板的管道用法兰，包括：
    一个管道部，具有第一端和第二端，一通道形成于所述管道部内侧，
    设置在管道部外侧周边的安装部，
    设置在管道部内侧封闭上述通道的隔断部，其特征在于：
    所述隔断部为易拉盖结构，包括一封闭上述通道的隔板和连接在隔板一侧面上的拉环，通过拉动拉环能够在所述隔板上形成一个与所述通道相匹配的开口。
  2. 根据权利要求1所述的设有隔板的管道用法兰，其特征在于在所述隔板的一侧面上设置有至少一条沿所述开口形状分布的连续或间断的凹痕，所述凹痕不贯穿隔板。
  3. 根据权利要求2所述的设有隔板的管道用法兰，其特征在于在所述隔板上、所述凹痕围成的区域内，设有加强筋。
  4. 根据权利要求1所述的设有隔板的管道用法兰，其特征在于所述安装部设置在所述管道部的第一端，所述易拉盖结构设置在与安装部同一端的管道部内侧，所述拉环设置在隔板上面向所述第一端的一侧面上。
  5. 根据权利要求4所述的设有隔板的管道用法兰，其特征在于所述管道部第一端设有与其他管道对接的扩口，所述易拉盖结构设置在所述扩口面向管道部第二端的一侧。
  6. 根据权利要求1所述的设有隔板的管道用法兰，其特征在于所述易拉盖结构至少能够承受来自背离拉环的隔板的另一侧面的0.1Mpa的压强。
  7. 根据权利要求6所述的设有隔板的管道用法兰，其特征在于所述易拉盖结构能够承受来自背离拉环的隔板的另一侧面的压强在0.2～1Mpa之间。
  8. 根据权利要求1所述的设有隔板的管道用法兰，其特征在于所述管道部横截面为圆形，所述安装部沿所述圆形管道部外侧周向分布，所述管道部内侧形成圆形通道，通道在隔板处的半径为R，拉动拉环在所述隔板上形成的半径为r的圆形开口，0mm≤R-r≤4mm。
  9. 根据权利要求8所述的设有隔板的管道用法兰，其特征在于0.01mm≤R-r≤2mm。
  10. 根据权利要求1～9任一项所述的设有隔板的管道用法兰，其特征在于所述管道部和所述安装部为一体注塑成型的塑料构件，所述易拉盖结构为金属构件，所述易拉盖结构在所述管道部和所述安装部注塑成型的同时嵌入所述管道部内侧。
  11. 根据权利要求10所述的设有隔板的管道用法兰，其特征在于所述管道部 内侧注塑形成用于支撑所述易拉盖结构的支撑凸缘，所述易拉盖结构的外沿部分嵌入所述支撑凸缘内。
  12. 根据权利要求11所述的设有隔板的管道用法兰，其特征在于所述易拉盖结构外沿嵌入支撑凸缘部分朝隔板设有拉环的一侧方向翘起形成翘起部，翘起部具有一始端和一末端。
  13. 根据权利要求12所述的设有隔板的管道用法兰，其特征在于在所述翘起部的始端处设有背离隔板设有拉环的另一侧方向下凹的凹槽。
  14. 根据权利要求12所述的设有隔板的管道用法兰，其特征在于所述翘起部的末端沿基本平行于所述隔板的方向深入支撑凸缘延伸形成平台部。
  15. 根据权利要求14所述的设有隔板的管道用法兰，其特征在于所述平台部的末端设有倒钩部。
  16. 根据权利要求1～9任一项所述的设有隔板的管道用法兰，其特征在于所述隔板的厚度在0.01mm～1mm之间。
  17. 根据权利要求16所述的设有隔板的管道用法兰，其特征在于所述隔板的厚度在0.05mm～0.5mm之间。
  18. 根据权利要求16所述的设有隔板的管道用法兰，其特征在于在所述隔板在与拉环的同一侧面上设置一条沿所述开口形状分布的连续凹痕，所述凹痕不贯穿隔板，所述拉环与隔板连接的位置在所述凹痕内侧。
  19. 根据权利要求16所述的设有隔板的管道用法兰，其特征在于在所述隔板在与拉环的同一侧面上设置一条沿所述开口形状分布的连续的第一凹痕，在第一凹痕内设有具有开口部的第二凹痕，第二凹痕在开口部的第一端通过第三凹痕连接第一凹痕，第二端不连接第一凹痕，所述第一、第二和第三凹痕不贯穿隔板，所述拉环与隔板连接的位置在所述第一和第二凹痕之间的第二凹痕开口部位置。
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