CN211951785U

CN211951785U - Plastic steel pipe connecting structure convenient to disassemble and assemble

Info

Publication number: CN211951785U
Application number: CN202020503333.7U
Authority: CN
Inventors: 熊晖
Original assignee: Jiangxi Yutong Pipeline Technology Co ltd
Current assignee: Jiangxi Yutong Pipeline Technology Co ltd
Priority date: 2020-04-08
Filing date: 2020-04-08
Publication date: 2020-11-17
Anticipated expiration: 2030-04-08

Abstract

The utility model discloses a plastic steel pipe connecting structure convenient for disassembly and assembly, which belongs to the technical field of pipeline connecting structures, and adopts the technical scheme that the plastic steel pipe is included, the plastic steel pipe comprises a steel pipe and a plastic pipe which are coaxially arranged, the plastic pipe is tightly attached to the inner wall of the steel pipe, the periphery of one end of the steel pipe is provided with an A flange plate which extends outwards along the radial direction, the periphery of the other end is provided with a B flange plate which extends outwards along the radial direction, a rubber gasket is arranged between the A flange plate and the B flange plate, and the diameters of the A flange plate, the B flange plate; a plurality of screw rods are axially welded on one side of the flange A, which is far away from the plastic steel pipe, around the axis of the flange A, and the screw rods are uniformly distributed at equal intervals; the flange B is provided with a plurality of flange holes around the axis of the flange B in a through way, and the number and the positions of the flange holes and the screw rods correspond to each other. This kind of be convenient for dismouting mould steel pipe connection structure dismouting convenient laborsaving, and do not have the risk that the part dropped and loses at the dismouting in-process.

Description

Plastic steel pipe connecting structure convenient to disassemble and assemble

Technical Field

The utility model relates to a pipeline connection technical field specifically is a mould steel pipe connection structure convenient to dismouting.

Background

The plastic steel pipe is formed by combining a steel pipe and a plastic pipe, inherits the respective advantages of the steel pipe and the plastic pipe, abandons the respective disadvantages of the steel pipe and the plastic pipe, has the advantages of high strength, corrosion resistance, long service life and the like, and is widely applied to pipeline engineering of water supply and drainage, heating and ventilation, pollution discharge and the like.

Most of today's mould steel pipe all carry out mutual fixed connection through flange joint's mode, but traditional flange dismouting gets up comparatively loaded down with trivial details hard, and supporting bolt and nut all separate each other on the ring flange, also drops the risk of losing in connection process.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a steel pipe connection structure moulds convenient to dismouting, this kind of steel pipe connection structure moulds convenient laborsaving of dismouting of being convenient for, and do not have the risk that the part dropped and loses at the dismouting in-process.

The above technical purpose of the present invention can be achieved by the following technical solutions: a plastic steel pipe connecting structure convenient to disassemble and assemble comprises a plastic steel pipe, wherein the plastic steel pipe comprises a steel pipe and a plastic pipe which are coaxially arranged, the plastic pipe is tightly attached to the inner wall of the steel pipe, an A flange plate extends outwards along the radial direction on the periphery of one end of the steel pipe, a B flange plate extends outwards along the radial direction on the periphery of the other end of the steel pipe, a rubber gasket is arranged between the A flange plate and the B flange plate, and the diameters of the A flange plate, the B flange plate and the rubber gasket are equal; a plurality of screw rods are axially welded on one side of the flange A, which is far away from the plastic steel pipe, around the axis of the flange A, and the screw rods are uniformly distributed at equal intervals; the flange plate B is provided with a plurality of flange holes in a penetrating way around the axis of the flange plate B, the number and the positions of the flange holes and the screw rods correspond to each other, one side, close to the plastic steel pipe, of the flange plate B is fixedly covered with an annular outer cover, the annular outer cover is provided with a plurality of positioning holes in a penetrating way around the axis of the annular outer cover, the number and the positions of the positioning holes and the flange holes correspond to each other, a fastening rod movably penetrates through each positioning hole, one end, extending into the annular outer cover, of each fastening rod is provided with a threaded groove in the axial direction, and the threaded grooves are matched with the screw rods; the rubber gasket is provided with penetrating holes in a penetrating way at the positions corresponding to the screw and the flange holes.

Furthermore, a flange is arranged on the periphery of one end, extending into the annular outer cover, of the fastening rod in a radially outward extending mode.

Further, the outer side edge of the rubber gasket extends to two sides along the axial direction to form a skirt edge.

Further, the distance between the flange hole and the positioning hole is smaller than the length of the fastening rod.

Further, the fastening rod is in a hexagonal column shape.

Furthermore, the outer wall of one end, far away from the flange A, of the screw rod and the inner wall, close to one end of the flange B, of the thread groove are both smooth wall surfaces.

To sum up, the utility model discloses following beneficial effect has:

this kind of steel pipe connection structure moulds convenient to dismouting, the A ring flange of two steel pipes of moulding is close together and after each hole site is aimed at with the B ring flange subsides, screw rod and anchorage bar screw up the cooperation each other and realize the fixed connection of two steel pipes of moulding, wherein the screw rod is together fixed connection with the A ring flange, the anchorage bar also is installed together with the B ring flange with the help of annular dustcoat, therefore, the screw rod can further target in place with the position of anchorage bar in the connection process, after targetting in place again with the anchorage bar screw up can, need not to insert the flange hole with the screw rod one by one again, and then make the operation more convenient laborsaving, and do not have the risk that the part dropped and loses at the dismouting in-process.

Drawings

FIG. 1 is a sectional view of the present invention during separation;

FIG. 2 is a sectional view of the present invention during assembly;

fig. 3 is an axonometric view of the fastening rod of the present invention.

In the figure: 1. plastic steel pipes; 101. a steel pipe; 102. a plastic tube; 2. a, a flange plate; 201. a screw; 3. a flange B; 301. a flange hole; 4. an annular outer cover; 401. positioning holes; 5. a fastening rod; 501. a thread groove; 502. a flange; 6. a rubber gasket; 601. a through hole; 602. a skirt.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a plastic steel pipe connection structure convenient to disassemble and assemble comprises a plastic steel pipe 1, wherein the plastic steel pipe 1 comprises a steel pipe 101 and a plastic pipe 102 which are coaxially arranged, the plastic pipe 102 is tightly attached to the inner wall of the steel pipe 101, an a flange 2 extends outwards along the radial direction from the periphery of one end of the steel pipe 101, a B flange 3 extends outwards along the radial direction from the periphery of the other end of the steel pipe 101, a rubber gasket 6 is arranged between the a flange 2 and the B flange 3, and the diameters of the a flange 2, the B flange 3 and the rubber gasket 6 are equal; a plurality of screws 201 are axially welded on one side of the flange plate A2, which is far away from the plastic steel pipe 1, around the axis of the flange plate A, and the plurality of screws 201 are uniformly distributed at equal intervals; the flange plate 3B is provided with a plurality of flange holes 301 in a penetrating way around the axis of the flange plate 3B, the number and the positions of the flange holes 301 and the screw rods 201 correspond to each other, one side, close to the plastic steel pipe 1, of the flange plate 3B is fixedly covered with an annular outer cover 4, the annular outer cover 4 is provided with a plurality of positioning holes 401 in a penetrating way around the axis of the annular outer cover 4, the number and the positions of the positioning holes 401 and the flange holes 301 correspond to each other, a fastening rod 5 movably penetrates through each positioning hole 401, one end, extending into the annular outer cover 4, of each fastening rod 5 is provided with a thread groove 501 in the axial direction, and; the rubber gasket 6 has a through hole 601 penetrating therethrough at a position corresponding to the screw 201 and the flange hole 301.

Through the technical scheme, when two plastic steel pipes 1 are connected, firstly, an A flange plate 2 and a B flange plate 3 of the two plastic steel pipes 1 are aligned, a rubber gasket 6 is placed between the A flange plate 2 and the B flange plate 3, all screws 201, penetrating holes 601, flange holes 301 and positioning holes 401 are ensured to be in one-to-one correspondence, then the A flange plate 2 and the B flange plate 3 are attached tightly and clamp the rubber gasket 6, the rubber gasket 6 plays a role of enhancing the tightness between the A flange plate 2 and the B flange plate 3, at the moment, the screws 201 sequentially penetrate through the penetrating holes 601 and the flange holes 301 and finally enter the annular housing 4, then, the fastening rods 5 are pushed towards the interior of the annular housing 4 until the thread grooves 501 are contacted with the screws 201, then, the fastening rods 5 are screwed, and under the mutual matching of the screws 201 and the thread grooves 501, the fastening rods 5 are connected with the screws 201 in a threaded manner, thereby realizing the stable connection of the flange plate A2 and the flange plate B3 and further realizing the stable connection of the two plastic steel pipes 1;

when the two plastic steel pipes 1 need to be disassembled, all the fastening rods 5 are unscrewed to enable the screw rods 201 to be disengaged from the thread grooves 501, then the screw rods 201 are pulled out of the annular outer cover 4, and finally the flange plates A2 and B3 are separated to finish the disassembly of the two plastic steel pipes 1;

to sum up, the utility model discloses the in-process screw rod 201 of connecting (dismantling) can one step target in place with the position of anchorage bar 5, after targetting in place again with anchorage bar 5 screw up (unscrew) can, need not to insert screw rod 201 from the flange hole 301 root by root again (extract), and then make the operation more convenient laborsaving, and do not have the risk that the part dropped and loses at the dismouting in-process.

Further, as shown in fig. 1 and 3, a flange 502 is provided to extend radially outward from the periphery of the end of the fastening rod 5 extending into the annular housing 4, so as to prevent the fastening rod 5 from being detached from the annular housing 4.

Further, as shown in fig. 1 and 2, the outer edge of the rubber gasket 6 is provided with the skirt 602 extending axially to both sides, after the rubber gasket 6 is clamped by the flange a 2 and the flange B3, the skirt 602 is tightly attached to the sides of the flange a 2 and the flange B3, so that the side of the flange a 2 and the flange B3 is protected, and meanwhile, external substances (such as sewage, gravel and the like) are effectively prevented from entering gaps among the flange a 2, the flange B3 and the rubber gasket 6, so that the protection and shielding effects on the three are achieved.

Further, as shown in fig. 2, the distance between the flange hole 301 and the positioning hole 401 is smaller than the length of the fastening rod 5, so as to prevent the fastening rod 5 from falling into the annular housing 4 and being unable to be taken out, and to ensure that the fastening rod 5 can be screwed from the outside of the annular housing 4 at any time.

Further, as shown in fig. 3, the fastening rod 5 has a hexagonal column shape, which facilitates screwing with a tool.

Further, as shown in fig. 1, the outer wall of the end of the screw 201 far from the flange plate 2 a and the inner wall of the end of the thread groove 501 close to the flange plate 3B are both smooth wall surfaces, so that when the thread groove 501 is just in contact with the screw 201, the screw 201 can be inserted into the thread groove 501 in advance without screwing the fastening rod 5, preliminary pre-positioning alignment of the thread groove 501 and the screw 201 is realized, and further, each part is more stable in the installation process.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a mould steel pipe connection structure convenient to dismouting, includes plastic steel pipe (1), plastic steel pipe (1) is including steel pipe (101) and plastic tubing (102) of coaxial setting, plastic tubing (102) hug closely the inner wall of steel pipe (101), its characterized in that:

the periphery of one end of the steel pipe (101) is provided with an A flange (2) in a radially outward extending mode, the periphery of the other end of the steel pipe is provided with a B flange (3) in a radially outward extending mode, a rubber gasket (6) is arranged between the A flange (2) and the B flange (3), and the diameters of the A flange (2), the B flange (3) and the rubber gasket (6) are equal;

a plurality of screw rods (201) are axially welded on one side, far away from the plastic steel pipe (1), of the flange A (2) around the axis of the flange A, and the screw rods (201) are uniformly distributed at equal intervals;

the flange plate B (3) is provided with a plurality of flange holes (301) in a penetrating manner around the axis of the flange plate B, the number and the positions of the flange holes (301) and the screw rods (201) correspond to each other, one side, close to the plastic steel pipe (1), of the flange plate B (3) is fixedly covered with an annular outer cover (4), the annular outer cover (4) is provided with a plurality of positioning holes (401) in a penetrating manner around the axis of the annular outer cover, the number and the positions of the positioning holes (401) and the flange holes (301) correspond to each other, a fastening rod (5) movably penetrates through each positioning hole (401), one end, extending into the annular outer cover (4), of each fastening rod (5) is provided with a threaded groove (501) in the axial direction, and the threaded grooves (501) are matched with the screw rods (201);

the rubber gasket (6) is provided with penetrating holes (601) at positions corresponding to the screw (201) and the flange holes (301).

2. The plastic steel pipe connecting structure convenient to disassemble and assemble according to claim 1, characterized in that: and a flange (502) is arranged at the periphery of one end of the fastening rod (5) extending into the annular outer cover (4) in a radially outward extending manner.

3. The plastic steel pipe connecting structure convenient to disassemble and assemble according to claim 1, characterized in that: and skirt edges (602) are arranged at the outer side edge of the rubber gasket (6) in an extending manner along the axial direction to two sides.

4. The plastic steel pipe connecting structure convenient to disassemble and assemble according to claim 1, characterized in that: the distance between the flange hole (301) and the positioning hole (401) is smaller than the length of the fastening rod (5).

5. The plastic steel pipe connecting structure convenient to disassemble and assemble according to claim 1, characterized in that: the fastening rod (5) is in a hexagonal column shape.

6. The plastic steel pipe connecting structure convenient to disassemble and assemble according to claim 1, characterized in that: the outer wall of one end, far away from the flange A (2), of the screw rod (201) and the inner wall, close to one end of the flange B (3), of the thread groove (501) are both smooth wall surfaces.