CN217815646U

CN217815646U - Saddle-type bypass with multiple seal structure

Info

Publication number: CN217815646U
Application number: CN202221871287.1U
Authority: CN
Inventors: 徐国庆; 贾建林
Original assignee: Cangzhou Mingzhu Plastic Co ltd
Current assignee: Cangzhou Mingzhu Plastic Co ltd
Priority date: 2022-07-13
Filing date: 2022-07-13
Publication date: 2022-11-15
Anticipated expiration: 2032-07-13

Abstract

The utility model discloses a saddle type bypass with multiple seal structure, including bypass body, hot melt saddle and bypass pipe, the upside of bypass body inlays and is equipped with interior bushing pipe, and the downside of bypass body is provided with the intercommunication chamber, and the spiro union has the screw thread pivot in the interior bushing pipe, and the top of screw thread pivot is provided with and revolves wrong structure, and the bottom of screw thread pivot is provided with the sword of punching, and the setting that the sword of punching can move about from top to bottom is provided with first sealing washer in the intercommunication chamber between screw thread pivot and the interior bushing pipe, is provided with the second sealing washer between interior bushing pipe and the bypass body. The utility model discloses a through unique structural design, can form two sealed in the trompil in-process, first department is that the first way that is located between screw thread pivot and the interior bushing pipe is sealed, and second department is that the second that is located between interior bushing pipe and the bypass body is sealed, through double-deck seal structure, very big improvement saddle bypass's whole leakproofness, especially the leakproofness of trompil in-process, great improvement factor of safety.

Description

Saddle bypass with multiple sealing structure

Technical Field

The utility model relates to a polyethylene pipe technical field especially relates to a saddle bypass with multiple seal structure.

Background

The PE (polyethylene) pipeline has high compression strength and corrosion resistance, and is convenient and reliable to connect, and is widely applied to the field of water supply or gas supply, for unconnected PE pipelines, if a branch pipeline is added on the main pipeline, a preset tee joint is directly added on the main pipeline according to the design position, and for connected PE pipelines, because the PE pipeline has more users for water supply, gas supply and the like, the PE pipeline is unrealistic to be closed randomly, a bypass pipe needs to be installed on the connected PE pipeline on line at this time, a saddle bypass is needed, the saddle bypass mainly comprises a bypass body, a drilling knife and a top cover, wherein the bottom of the bypass body is provided with a hot melting saddle, the side surface of the bypass body is provided with the bypass pipe, the drilling knife is bypassed in the bypass body, when the PE pipeline is used, the hot melting saddle is fixed on the PE main pipe through a clamp, a heating body on the hot melting saddle is connected with an electric fusion welding machine, the hot melting saddle is fixedly connected with the PE main pipe after being melted, then the drilling knife is used for drilling the PE main pipe, the drilling is reset after the drilling, the PE main pipe is screwed with the top end of the PE main pipe, and the PE pipeline is connected with the closed inner cavity of the PE main pipe by the PE pipeline, and the top end of the PE pipeline is finally connected with the closed PE pipeline by the PE pipeline.

To above-mentioned structure, no matter in the drilling or after drilling finishes, it only realizes sealedly through the helicitic texture between drilling sword and the bypass body, however be subject to reasons such as material difference and manufacturing error, the helicitic texture between drilling sword and the bypass body is difficult to accomplish totally-enclosed, the reliability is not good enough, also producer has increased the sealing washer between drilling sword and bypass body, but this sealing washer only can play sealed effect after the drilling of drilling sword finishes resetting, do not play a role in the in-process of drilling, there is certain potential safety hazard, so need to develop a saddle type bypass that can play reliable sealed effect in drilling process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to avoid prior art's weak point, provide a saddle bypass with multiple seal structure to effectively solve the weak point that exists among the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a saddle type bypass with multiple seal structure, includes bypass body, hot melt saddle and bypass pipe, the top of bypass body is provided with the electric smelting end cap, and the upside of bypass body inlays and is equipped with interior bushing pipe, and the downside of bypass body is provided with the intercommunication chamber, and threaded spindle has been screwed in interior bushing pipe, and threaded spindle's top is provided with revolves wrong structure, and threaded spindle's bottom is provided with the sword of punching, and the setting that the sword of punching can move about from top to bottom is in the intercommunication chamber, be provided with first sealing washer between threaded spindle's top and the interior bushing pipe, pre-buried second sealing washer that is provided with between the bottom of interior bushing pipe and the bypass body.

Further, electric smelting end cap includes the cap body of suit on the bypass body, and the inboard of cap body is provided with heating coil, and the outside of cap body is provided with the first joint and the second that link to each other with heating coil respectively and connects.

Furthermore, the outer side of the lining pipe is provided with a convex edge, and a groove matched with the convex edge is formed on the bypass body at the position corresponding to the convex edge.

Furthermore, the convex edge is of an annular structure, and a plurality of convex edges are arranged at intervals along the radial direction of the lining pipe.

Further, the screwing structure is a screwing groove arranged on the threaded rotating shaft.

Further, the bottom of the lining pipe is provided with a step portion protruding towards the inner side, a threaded hole matched with the threaded rotating shaft is formed in the step portion, a gap is formed between the threaded portion of the threaded rotating shaft and the lining pipe, the top of the threaded rotating shaft is provided with a sealing slide block, the first sealing ring is arranged between the sealing slide block and the lining pipe, and the outer diameter of the sealing slide block is larger than the inner diameter of the step portion.

Furthermore, a first ring groove used for installing a first sealing ring is arranged on the sealing sliding block.

Further, a second ring groove used for installing a second sealing ring is formed in the lining pipe.

Further, the punching knife is detachably connected with the threaded rotating shaft.

Furthermore, the bottom spiro union of screw thread pivot has lock nut, and the sword of punching is fixed in between lock nut and the screw thread pivot by the centre gripping, is provided with anti-rotating structure between screw thread pivot and the sword of punching.

The above technical scheme of the utility model following beneficial effect has:

1. in the utility model, the lining pipe is added between the bypass body and the thread rotating shaft, so that the thread fit between the traditional metal and the plastic is changed into the thread fit between the metal and the metal, which is not only beneficial to improving the fit precision of the thread part, but also has higher structural strength;

2. the utility model discloses a unique structural design, can form two sealed in the trompil in-process, first department is that the first way that is located between screw thread pivot and the interior bushing pipe is sealed, it can solve in the traditional structure because the leakage condition that the screw thread part cooperation is not tight probably appears, through the sliding seal between screw thread pivot and the interior bushing pipe, can form the sealed effect that lasts in the trompil, the second department is that the second that is located between interior bushing pipe and the bypass body is sealed, the second is sealed can solve the not tight condition of interior bushing pipe and the cooperation of bypass body, through double-deck seal structure, very big improvement the whole leakproofness of saddle bypass, especially the leakproofness of trompil in-process, great improvement factor of safety.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

fig. 3 is a partially enlarged view of B in fig. 1.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

As shown in fig. 1-3, a saddle-type bypass with multiple sealing structures according to this embodiment includes a bypass body 1, a hot-melting saddle 2, and a bypass pipe 3, wherein an electric melting end cap 4 is disposed on a top of the bypass body 1, an inner lining pipe 5 is embedded on an upper side of the bypass body 1, the inner lining pipe 5 is embedded inside the bypass body 1 during injection molding of the bypass body 1 to form a structure in which the inner lining pipe is tightly fitted, a communicating cavity 1a is disposed on a lower side of the bypass body 1, the bypass pipe 3 is disposed on a side of the communicating cavity 1a in a communicating manner, a threaded rotating shaft 6 is screwed into the inner lining pipe 5, a screwing structure is disposed on a top end of the threaded rotating shaft 6, a punching knife 12 is disposed at a bottom end of the threaded rotating shaft 6, the punching knife 12 is movably disposed in the communicating cavity 1a up and down manner, by screwing the threaded rotating shaft 6, up and down movement of the threaded rotating shaft 6 in cooperation with a threaded structure between the inner lining pipe 5 can be achieved, the punching knife 12 is driven to move up and down, so as to complete punching, a first sealing ring 7 is disposed between the top end of the threaded rotating shaft 6 and the inner lining pipe 5, a second sealing ring 8 is disposed between the bypass body 1 and the embedded bypass body 1 during injection molding.

In the present embodiment, in order to further improve the sealing performance at the joint, two positions are provided for each of the first seal ring 7 and the second seal ring 8.

By adopting the above structure, the utility model, can form two sealed in the trompil in-process, first department is that the first way that is located between screw thread pivot 6 and the interior bushing pipe 5 is sealed, first way is sealed can solve because the leakage condition that the screw thread part cooperation is not tight probably appears in the traditional structure, through the sliding seal between screw thread pivot 6 and the interior bushing pipe 5, can form the sealed effect that lasts in the trompil, second department is that the second that is located between interior bushing pipe 5 and the bypass body 1 is sealed, the second is sealed can solve interior bushing pipe 5 and the not tight condition of bypass body 1 cooperation, through double-deck seal structure, very big improvement the whole leakproofness of saddle type bypass, especially the leakproofness of trompil in-process, great improvement factor of safety.

The utility model discloses in still increased interior bushing pipe 5 in traditional structure, interior bushing pipe 5 and screw thread pivot 6 all can adopt 45 steel, through setting up interior bushing pipe 5 for screw-thread fit between traditional metal and the plastics has changed into the screw-thread fit between metal and the metal, not only does benefit to the cooperation precision that improves screw thread department, and structural strength is higher moreover.

Electric smelting end cap 4 includes cap body 4a of suit on bypass body 1, and cap body 4 a's inboard is provided with heating coil 4b, and cap body 4a adopts the PE material, and cap body 4 a's the outside is provided with the first joint 4c that links to each other with heating coil 4b respectively and connects 4d with the second, and the traditional cap body that is used for sealing 1 top of bypass body generally is the screw cap, and the same sealed not tight condition that exists of this kind of structure, and the utility model discloses in through adopting electric smelting end cap 4, can with bypass body 1 between form more reliable seal structure after the work of punching is accomplished.

The outside of interior bushing pipe 5 is provided with protruding edge 5a, the recess 1b of looks adaptation is formed to the position that corresponds protruding edge 5a on the bypass body 1, protruding edge 5a is annular boss structure, protruding edge 5a is provided with a plurality ofly along the radial spaced of interior bushing pipe 5, can realize the axial between interior bushing pipe 5 and the bypass body 1 through protruding edge 5a and radial spacing, can effectually offset the reaction force that threaded spindle 6 gave interior bushing pipe 5, guarantee the reliability of structure.

The screwing structure is a screwing groove 6a arranged on the threaded rotating shaft 6.

The bottom of interior bushing pipe 5 is provided with inside bellied step portion 5b, be provided with the screw hole 5c with 6 looks adaptations of screw thread pivot on step portion 5b, be provided with the clearance between the screw thread portion of screw thread pivot 6 and interior bushing pipe 5, the top of screw thread pivot 6 is provided with seal block 6b, first sealing washer 7 sets up between seal block 6b and interior bushing pipe 5, through only being provided with the helicitic texture with 6 looks adaptations of screw thread pivot in the bottom of interior bushing pipe 5, great reduction the stroke that waits when the installation of screw thread pivot 6, installation effectiveness is improved, can process still less screw thread simultaneously, machining cost is reduced, and production efficiency is improved.

The external diameter of sealed slider 6b is greater than the internal diameter of step portion 5b, can play spacing effect to screw spindle 6 through this structure, avoids screw spindle 6 because the operation is improper to drop in the intercommunication chamber 1 a.

The sealing slide block 6b is provided with a first ring groove for mounting a first sealing ring 7, and the lining pipe 5 is provided with a second ring groove for mounting a second sealing ring 8.

Punching sword 12 is connected with 6 detachable of screw thread pivot, the bottom spiro union of screw thread pivot 6 has lock nut 6c, punching sword 12 is fixed in between lock nut 6c and the screw thread pivot 6 by the centre gripping, be provided with anti-rotation structure between screw thread pivot 6 and the punching sword 12, be provided with spring washer between lock nut 6c and the punching sword 12, can play the effect of stopping to lock nut 6c, anti-rotation structure can be for setting up the navigation key between screw thread pivot and 6 and punching sword 7, also be provided with on punching sword 12 and prevent changeing the arch, set up on screw thread pivot 6 and prevent changeing the recess of preventing that protruding looks adaptation.

The utility model discloses a use method does:

the method comprises the following steps: according to the design position, the bypass body 1 is arranged on a main PE pipe 10 to be perforated in a bonding mode through a hot-melting saddle 2, and then the hot-melting saddle 2 is connected with the main PE pipe 10 through a hoop 11;

step two: connecting the hot-melting saddle 2 with the main PE pipe 10 in a hot-melting way, wherein a heating body (not shown) on the hot-melting saddle 2 only adopts a conventional hot-melting heating structure, and air cooling is carried out after hot melting;

step three: taking down the electric melting end cap 4, screwing the threaded rotating shaft 6 to enable the punching knife 12 to move downwards to punch on the main PE pipe 10, resetting the punching knife 12 after punching is finished, and simultaneously taking out the dropped materials by the punching knife 12, wherein the main PE pipe 10 is communicated with the branch PE pipes connected to the bypass pipe 3;

step four: detain electric smelting end cap 4 on bypass body 1, connect 4d with the second with first joint 4c and be connected with electric fusion welding machine, heating coil 4b generates heat and melts electric smelting end cap 4 and bypass body 1's cooperation position, realizes the butt fusion, guarantees the leakproofness.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The utility model provides a saddle type bypass with multiple seal structure, includes bypass body, hot melt saddle and bypass pipe, its characterized in that: the top of bypass body is provided with the electric smelting end cap, and the upside of bypass body inlays and is equipped with interior bushing pipe, and the downside of bypass body is provided with the intercommunication chamber, and threaded rotating shaft has been threaded in the interior bushing pipe, and the top of threaded rotating shaft is provided with twists the structure soon, and the bottom of threaded rotating shaft is provided with the sword of punching, and the setting that the sword of punching can move about from top to bottom is in the intercommunication chamber, be provided with first sealing washer between the top of threaded rotating shaft and the interior bushing pipe, pre-buried second sealing washer that is provided with between the bottom of interior bushing pipe and the bypass body.

2. The saddle bypass with multiple seal configuration as claimed in claim 1, wherein: the electric smelting end cap includes the cap body of suit on the bypass body, and the inboard of cap body is provided with heating coil, and the outside of cap body is provided with the first joint that links to each other with heating coil respectively and connects with the second.

3. The saddle bypass with multiple seal configuration as claimed in claim 1, wherein: the outer side of the lining pipe is provided with a convex edge, and a groove matched with the convex edge is formed on the bypass body at the position corresponding to the convex edge.

4. The saddle bypass with multiple seal configuration as claimed in claim 3, wherein: the convex edge is of an annular structure, and a plurality of convex edges are arranged at intervals along the radial direction of the lining pipe.

5. The saddle bypass with multiple seal configuration as claimed in claim 1, wherein: the screwing structure is a screwing groove arranged on the threaded rotating shaft.

6. The saddle bypass with multiple seal configuration as claimed in claim 1, wherein: the bottom of the lining pipe is provided with a step portion protruding towards the inner side, a threaded hole matched with the threaded rotating shaft is formed in the step portion, a gap is formed between the threaded portion of the threaded rotating shaft and the lining pipe, the top of the threaded rotating shaft is provided with a sealing slide block, the first sealing ring is arranged between the sealing slide block and the lining pipe, and the outer diameter of the sealing slide block is larger than the inner diameter of the step portion.

7. The saddle bypass with multiple seal configuration as claimed in claim 6, wherein: and a first annular groove for mounting a first sealing ring is arranged on the sealing sliding block.

8. The saddle bypass with multiple seal structure according to claim 1, wherein: and a second annular groove for mounting a second sealing ring is formed in the lining pipe.

9. The saddle bypass with multiple seal configuration as claimed in claim 1, wherein: the punching knife is detachably connected with the threaded rotating shaft.

10. The saddle bypass with multiple seal configuration of claim 9, wherein: the bottom spiro union of screw thread pivot has lock nut, and the sword of punching is fixed in between lock nut and the screw thread pivot by the centre gripping, is provided with anti-rotating structure between screw thread pivot and the sword of punching.