Flange for connecting plastic pipes

Abstract

The utility model discloses a flange for plastic pipe connection, which comprises a top flange plate and a bottom flange plate, the top flange plate is detachably connected with the bottom flange plate, the top flange plate and the bottom flange plate are of the same structure, the top flange plate comprises a fastening gasket plate, a sealing gasket plate and an annular convex plate, a sealing gasket disc is arranged in the middle of the top of the fastening gasket disc and fixedly connected with the fastening gasket disc, an annular protruding disc is arranged in the middle of the sealing gasket disc and connected with the sealing gasket disc in a sealed mode, and fastening column holes are evenly distributed in the circumferential face of the outer side of the fastening gasket disc. Reinforcing cushion blocks are arranged on the circumferential face of the outer side of the annular protruding disc, and mounting column holes are formed in the reinforcing cushion blocks. According to the equipment, two water pipes can be conveniently, rapidly and accurately buckled and installed, the sealing performance is good, the structure is simple, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline flange equipment, in particular to a flange for connecting plastic pipes. Background Art

[0002] Flange, also known as flange flange or flange. Flange is a part that connects shafts to each other and is used to connect pipe ends. It is also used for flanges on the inlet and outlet of equipment, which are used to connect two equipments, such as reducer flange. Flange connection or flange joint refers to a detachable connection that is connected by flange, gasket and bolts as a combined sealing structure. Pipe flange refers to the flange used for piping in pipeline devices, and the inlet and outlet flanges of equipment are used on equipment. There are holes on the flange, and bolts make the two flanges tightly connected. Gaskets are used to seal between flanges. Flanges are divided into threaded connection (threaded connection) flanges, welding flanges and clamping flanges. Flanges are used in pairs. Threaded flanges can be used for low-pressure pipelines, and welding flanges can be used for pressures above four kilograms. A sealing gasket is added between the two flanges, and then tightened with bolts. Flanges of different pressures have different thicknesses, and they use different bolts. When water pumps and valves are connected to pipelines, parts of these equipment are also made into corresponding flange shapes, also known as flange connections. Any connection parts that are bolted and closed around two planes are generally called "flanges", such as the connection of ventilation ducts, which can be called "flange parts". However, this connection is only a part of a device, such as the connection between a flange and a water pump, so it is not appropriate to call the water pump a "flange part". Smaller ones such as valves can be called "flange parts".

[0003] Plastic flanges are mainly used for pipeline connections. At present, traditional plastic flanges have poor connection sealing, and the flange fastening is prone to deviation, installation is more troublesome, and use is not convenient. The above problems require improvements to traditional equipment. Therefore, here we propose a flange for plastic pipe connection. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a flange for connecting plastic pipes, which solves the problems of poor connection sealing of traditional plastic flanges, easy deviation in flange fastening, cumbersome installation and inconvenient use.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a flange for connecting plastic pipes, comprising a top flange and a bottom flange, the top flange and the bottom flange are connected in a detachable manner, the top flange and the bottom flange have the same structure, the top flange comprises a fastening gasket, a sealing gasket and an annular convex plate, a sealing gasket is provided in the middle of the top of the fastening gasket, the sealing gasket is fixedly connected to the fastening gasket, an annular convex plate is provided in the middle of the sealing gasket, the annular convex plate is sealingly connected to the sealing gasket, the outer circumferential surface of the fastening gasket is evenly distributed with fastening column holes, the outer circumferential surface of the annular convex plate is provided with reinforcing pads, and the reinforcing pads are provided with mounting column holes.

[0008] As a further preferred embodiment of the present invention, a strip-shaped buckle groove is provided on the lower left side of the top flange, and a strip-shaped buckle column is provided on the lower right side of the top flange.

[0009] As a further preferred embodiment of the present invention, a square buckle groove is provided on the upper left side of the bottom flange, and a square protrusion is provided on the upper right side of the bottom flange.

[0010] As a further preferred embodiment of the present invention, a water pipe connection notch is provided in the middle of the annular convex disc.

[0011] As a further preferred embodiment of the present invention, a sealing notch is provided at the center of the sealing gasket disc, and a sealing gasket is provided on the outer side of the sealing notch.

[0012] (III) Beneficial effects

[0013] The utility model provides a flange for connecting plastic pipes, which has the following beneficial effects:

[0014] This type of equipment is designed with a top flange and a bottom flange to facilitate the upper and lower buckle connection of the plastic pipe. At the same time, fastening pads are added to the outer edges of the top flange and the bottom flange, and the two fastening column holes on the top can be used for accurate positioning and connection. The buckle is more accurate, the installation is more convenient, and the practicability is strong.

[0015] This type of equipment is designed with square buckle blocks and square buckle grooves added to the bottom and top of the top flange and bottom flange for easy buckling. At the same time, strip buckle columns and strip buckle grooves are added to enhance the sealing and accuracy of the connection, and it is highly functional. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the overall top view structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the overall internal structure of the utility model.

[0019] In the figure, top flange-1, bottom flange-2, fastening gasket-3, sealing gasket-4, annular convex plate-5, fastening column hole-6, reinforcing gasket-7, mounting column hole-8, strip buckle groove-9, strip buckle column-10, square buckle groove-11, square convex block-12, water pipe connecting groove-13, sealing groove-14, sealing gasket-15. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3 The embodiment of the utility model provides a technical solution: a flange for connecting plastic pipes, comprising a top flange 1 and a bottom flange 2, wherein the top flange 1 is connected to the bottom flange 2 in a detachable manner, and the top flange 1 and the bottom flange 2 have the same structure, the top flange 1 comprises a fastening gasket 3, a sealing gasket 4 and an annular convex plate 5, a sealing gasket 4 is provided in the middle of the top of the fastening gasket 3, the sealing gasket 4 is fixedly connected to the fastening gasket 3, an annular convex plate 5 is provided in the middle of the sealing gasket 4, the annular convex plate 5 is sealingly connected to the sealing gasket 4, the outer circumferential surface of the fastening gasket 3 is evenly distributed with fastening column holes 6, the outer circumferential surface of the annular convex plate 5 is provided with reinforcing pads 7, and the reinforcing pads 7 are provided with mounting column holes 8.

[0022] The lower left side of the top flange 1 is provided with a strip buckle groove 9, and the lower right side of the top flange 1 is provided with a strip buckle column 10. Through such a design, the strip buckle groove 9 can be used to cooperate with the strip buckle column 10 for accurate buckling.

[0023] A square buckle groove 11 is provided on the upper left side of the bottom flange 2, and a square convex block 12 is provided on the upper right side of the bottom flange 2. Through such a design, the square buckle groove 11 can be used to match the square convex block 12 to enhance the buckling accuracy of the top flange 1 and the bottom flange 2.

[0024] A water pipe connection notch 13 is provided in the middle of the annular convex disc 5. Through such a design, the water pipe connection notch 13 can be used to match and fix the water pipe.

[0025] A sealing notch 14 is provided at the center of the sealing gasket disc 4, and a sealing gasket 15 is provided outside the sealing notch 14. Through such a design, the sealing gasket 15 inside the sealing notch 14 can be used to enhance the overall sealing performance.

[0026] Working principle: When using this type of equipment, first, the top flange 1 and the bottom flange 2 can be used to fix two different pipe fittings respectively, and then the square buckle block 12 and the square buckle groove 11 can be used for buckling, and the strip buckle column 10 and the strip buckle groove 9 are used, and the bolts are inserted into the fastening column hole 6 on the outer edge of the fastening pad 3. At the same time, the water pipe is inserted into the inside of the water pipe connecting groove 13 and passes through the sealing groove 15. The internal sealing gasket 15 can be used to enhance the overall sealing. The installation buckling is more accurate, the sealing is good, and the practicability is strong.

[0027] The top flange-1, bottom flange-2, fastening pad-3, sealing pad-4, annular convex disc-5, fastening column hole-6, reinforcing pad-7, mounting column hole-8, strip buckle groove-9, strip buckle column-10, square buckle groove-11, square convex block-12, water pipe connection notch-13, sealing notch-14, and sealing gasket-15 components of the utility model are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known by the technicians through technical manuals or through conventional experimental methods. The problem solved by the utility model is that the current traditional plastic flange has poor connection sealing, and the flange buckling is prone to deviation, which is troublesome to install and inconvenient to use. This equipment is convenient for fastening and installing two water pipes quickly and accurately, and has good sealing, simple structure, and strong practicality.

[0028] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A flange for connecting a plastic pipe, comprising a top flange (1) and a bottom flange (2), characterized in that: The top flange (1) is connected to the bottom flange (2) in a detachable manner. The top flange (1) and the bottom flange (2) have the same structure. The top flange (1) comprises a fastening gasket (3), a sealing gasket (4) and an annular convex plate (5). A sealing gasket (4) is provided in the middle of the top of the fastening gasket (3). The sealing gasket (4) is fixedly connected to the fastening gasket (3). An annular convex plate (5) is provided in the middle of the sealing gasket (4). The annular convex plate (5) is sealingly connected to the sealing gasket (4). The outer circumferential surface of the fastening gasket (3) is evenly distributed with fastening column holes (6). The outer circumferential surface of the annular convex plate (5) is provided with a reinforcing pad (7). The reinforcing pad (7) is provided with a mounting column hole (8).

2. A plastic pipe connecting flange according to claim 1, characterized in that: A strip-shaped buckle groove (9) is provided on the lower left side of the top flange (1), and a strip-shaped buckle column (10) is provided on the lower right side of the top flange (1).

3. A flange for connecting plastic pipes according to claim 1, characterized in that: A square buckle groove (11) is provided on the upper left side of the bottom flange (2), and a square protrusion (12) is provided on the upper right side of the bottom flange (2).

4. A plastic pipe connecting flange according to claim 1, characterized in that: A water pipe connection notch (13) is provided in the middle of the annular convex disc (5).

5. The flange for connecting plastic pipes according to claim 1, characterized in that: A sealing notch (14) is provided at the center of the sealing gasket disc (4), and a sealing gasket (15) is provided on the outer side of the sealing notch (14).

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