CN218762017U - Water pipe connecting flange - Google Patents

Abstract

The application discloses a water pipe connecting flange, which belongs to the technical field of connectors and is used to provide a water pipe connecting flange that is easy to use and has good stability, including a first pipe body and a second pipe body that can be inserted into each other, The inner wall of the second pipe body is provided with a sealing ring, the first pipe body is inserted into the second pipe body, and the end of the first pipe body withstands and squeezes the sealing ring, so that the inner passages of the first pipe body and the second pipe body are in line with the first pipe body. The gap between the outer wall of the first pipe and the inner wall of the second pipe is sealed, the first connecting sleeve is provided on the outside of the first pipe body, the second connecting sleeve is provided on the outside of the second pipe body, and the first connecting sleeve and the second connecting sleeve The sleeves are all provided with flanges extending outward, and the first connecting sleeve is adapted to cooperate with the second connecting sleeve so that the first pipe body is tightly inserted into the second pipe body. The utility model realizes a stable and well-sealed water pipe connection by providing a connecting sleeve structure on the outside of the flange connecting pipe; by constraining the connecting sleeve on the pipe body, the loss of parts during maintenance is avoided.

Description

water pipe connection flange

technical field

The present application relates to the technical field of couplings, in particular to a water pipe coupling flange.

Background technique

Pipeline systems are often used in industrial production. Due to the complexity of the pipeline system, it is usually not possible to form directly. It is necessary to connect multiple short pipe fittings. High-pressure fluid is usually introduced into the pipeline. In order to prevent the fluid in the pipeline from To overflow or cause the pipeline to collapse from the connection, it is necessary to configure an additional connection structure at the connection. The existing connection structure is separated from the pipe body and is easy to be lost during installation and disassembly, which brings trouble to the maintenance of the pipeline system.

Contents of the invention

The purpose of this application is to provide a water pipe connection flange that is easy to use and has good stability.

In order to achieve the above purpose, the application provides a water pipe coupling flange: comprising a first pipe body and a second pipe body that can be inserted into each other, the inner wall of the second pipe body is provided with a sealing ring, and the first pipe body The body is inserted into the second pipe body, and the end of the first pipe body withstands and squeezes the sealing ring, so that the inner passages of the first pipe body and the second pipe body are connected with the first pipe body The gap between the outer wall and the inner wall of the second pipe is sealed, a first connecting sleeve is provided on the outside of the first pipe body, a second connecting sleeve is provided on the outside of the second pipe body, and the first connecting sleeve and The second connecting sleeve is provided with an outwardly extending flange, and the first connecting sleeve is adapted to cooperate with the second connecting sleeve so that the first pipe body is tightly inserted into the second pipe body, which is convenient Mates and splits.

As a preference, the outer wall of the first pipe body is attached to the inner wall of the second pipe body, the inner wall of the second pipe body has an inner flange, and the sealing ring is stuck on the inner wall of the inner flange. The end face is used to limit the position of the sealing ring in the second tube body.

As a preference, the main part of the first tube body is a cannula, the end of the cannula away from the second tube body is a first pipe connection end, and the outer surface of the cannula has a coaxial first A limiting ring, the main part of the first connecting sleeve is an inner straight pipe, and the inner wall of the inner straight pipe has a first retaining edge located between the first pipe connection end and the first limiting ring; The main part of the second pipe body is a sleeve, and the end of the sleeve away from the first pipe body is a second pipe connection end, and the outer surface of the sleeve has a coaxial second stop ring, so The main part of the second connecting sleeve is an outer straight pipe, and the inner wall of the outer straight pipe has a second retaining edge located between the second pipe connection end and the second stop ring, which can prevent the connecting sleeve from corresponding Comes off on the tube body to avoid missing parts.

As a preference, the first connecting sleeve is movably connected to the outside of the cannula, the outer surface of the inner straight tube is provided with external threads, and the second connecting sleeve is movably connected to the outside of the sleeve, The inner wall of the outer straight pipe is provided with an inner thread, and the outer thread is suitable for cooperating with the inner thread, and the two pipe bodies are inserted and tightened by means of screw feeding, which will save labor.

As a preference, a first air-tight ring is provided between the first retaining edge and the first limiting ring, and a second air-tight ring is provided between the second retaining edge and the second limiting ring. The seal ring improves the sealing performance of the movable contact surface of the connecting parts.

As a preference, an annular groove is formed on the end surface of the first limiting ring facing the first retaining edge, and the first air-tight ring is adapted to be embedded in the annular groove of the first limiting ring; An annular groove is formed on the end surface of the second limiting ring facing the second retaining edge, and the second air-tight ring is suitable for being embedded in the annular groove of the second limiting ring to prevent airtight Circle falls off.

As a preference, the inner wall of the second pipe body is provided with an annular groove at the end of the inner flange, and the sealing ring is suitable for being embedded in the annular groove, so as to prevent the sealing ring from moving in the pipe body .

As a preference, the flange provided on the first connecting sleeve is a first flange, and the first flange is located at the end of the inner straight pipe away from the second connecting sleeve. The flange provided on the second connecting sleeve is a second flange, the second flange is located on the outer surface of the outer straight pipe, and is integrally formed with the outer straight pipe, which can reduce process steps and provide Productivity.

Compared with the prior art, the beneficial effects of the present application are:

(1) By setting the connection sleeve structure on the outside of the flange connection pipe, a stable and well-tight water pipe connection can be realized without using additional connectors;

(2) By constraining the connecting sleeve on the pipe body, it avoids the loss of components during maintenance, facilitates use, and simplifies installation and maintenance operations.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the water pipe connecting flange;

Fig. 2 is a three-dimensional structural sectional view of the water pipe connecting flange;

Fig. 3 is a three-dimensional sectional view of two pipe bodies of the water pipe connecting flange;

Fig. 4 is a three-dimensional sectional view of the first pipe body of the water pipe connecting flange;

Fig. 5 is a three-dimensional sectional first view of the second pipe body of the water pipe connecting flange;

Fig. 6 is a second perspective view of the second pipe body of the water pipe connecting flange;

Fig. 7 is a three-dimensional structural cross-sectional view of the first connecting sleeve of the water pipe connecting flange;

Fig. 8 is a sectional view of the three-dimensional structure of the second connecting sleeve of the water pipe connecting flange.

In the figure: 1, the first connecting sleeve; 101, the inner straight pipe; 102, the first flange; 103, the external thread; 104, the first retaining edge; 2, the second connecting sleeve; 201, the outer straight pipe; 202 , the second flange; 203, internal thread; 204, the second retaining edge; 3, the first pipe body; 301, intubation; 302, the first pipe connection end; 303, the first limit ring; Two pipe body; 401, casing; 402, second pipe joint; 403, second limit ring; 404, inner flange; 5, first airtight ring; 6, sealing ring; 7, second airtight lock up.

Detailed ways

Hereinafter, the present application will be further described in conjunction with specific implementation methods. It should be noted that, on the premise of not conflicting, the various embodiments or technical features described below can be combined arbitrarily to form new embodiments.

In the description of this application, it should be noted that for orientation words, such as the terms "center", "horizontal", "longitudinal", "length", "width", "thickness", "upper", "lower" , "Front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise ” and other indication orientations and positional relationships are based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, use a specific orientation The structure and operation should not be construed as limiting the specific protection scope of the application.

It should be noted that the terms "first" and "second" in the specification and claims of the present application are used to distinguish similar objects, but not necessarily used to describe a specific order or sequence.

The terms "comprising" and "having" and any variations thereof in the description and claims of the present application are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or process comprising a series of steps or units. The apparatus is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to the process, method, product or apparatus.

The water pipe connection flange shown in Figure 1-8 includes a first pipe body 3 and a second pipe body 4 that can be inserted into each other. As a part of the water pipe, it is the end of the water pipe that needs to be connected. The second pipe body 4 The inner wall of the second pipe body 4 is provided with a seal ring 6, the inner wall of the second pipe body 4 has an inner flange 404, the seal ring 6 is stuck on the end face of the inner flange 404, and the inner wall of the second pipe body 4 is provided with a seal located at the end of the inner flange 404 An annular groove, the sealing ring 6 is suitable for being embedded in the annular groove, preventing the sealing ring 6 from moving or falling off in the second pipe body 4 after installation and before tightening, after the groove structure is set, the sealing ring 6 can be Holds up nicely.

The first tube body 3 is inserted into the second tube body 4, and the outer wall of the first tube body 3 is attached to the inner wall of the second tube body 4, so that the gap between the two is very small, and there is no need for additional extrusion force on the inside The water passing through also has a good blocking effect, and the end of the first pipe body 3 withstands and squeezes the sealing ring 6, so that the internal passages of the first pipe body 3 and the second pipe body 4 are in contact with the outer wall of the first pipe body 3 and the outer wall of the first pipe body 3. The gap sealing before the inner wall of the second pipe body 4 can prevent the high-pressure water in the pipe body from overflowing through the gap at the butt joint of the pipe body, further improving the water leakage prevention performance.

The outside of the first tube body 3 is provided with a first connecting sleeve 1, the main part of the first tube body 3 is the intubation tube 301, the first connecting sleeve 1 is movably connected to the outside of the intubation tube 301, the first connecting sleeve 1 can be relatively The first pipe body 3 slides within a certain range or rotates along the axis of the insertion tube 301, and the end of the insertion tube 301 away from the second pipe body 4 is a first pipe connection end 302, which is used to connect the end of a longer water pipe. Generally, it is directly fixedly connected with the water pipe. The outer surface of the intubation pipe 301 has a coaxial first stop ring 303. The main part of the first connecting sleeve 1 is an inner straight pipe 101. The inner wall of the inner straight pipe 101 has a The first retaining edge 104 between the end 302 and the first limiting ring 303, the first retaining edge 104 is constrained between the first pipe joint end 302 and the first limiting ring 303, and is used to prevent the first connecting sleeve 1 from Separated from the first pipe body 3, a first air-tight ring 5 is arranged between the first retaining edge 104 and the first stop ring 303. On the one hand, the air-tight ring is made of soft materials such as rubber or silica gel, and can be used at the second An elastic support force is generated between a retaining edge 104 and the first limiting ring 303 to provide an elastic pre-tightening force; on the other hand, it is used to improve the airtightness between the first connecting sleeve 1 and the first pipe body 3, the second An annular groove is formed on the end surface of a limiting ring 303 facing the first retaining edge 104 , and the first air-tight ring 5 is adapted to be embedded in the annular groove of the first limiting ring 303 to prevent the first air-tight ring 5 from falling off.

The outside of the second pipe body 4 is provided with a second connecting sleeve 2, the main part of the second pipe body 4 is a sleeve 401, the second connecting sleeve 2 is movably connected to the outside of the sleeve 401, and the second connecting sleeve 2 can be relatively The second pipe body 4 slides within a certain range or rotates along the axis of the sleeve 401. The end of the sleeve 401 away from the first pipe body 3 is the second pipe joint end 402, which is also used for fixedly connecting another longer pipe. At the end of the water pipe, the outer surface of the casing 401 has a coaxial second stop ring 403, the main part of the second connecting sleeve 2 is the outer straight pipe 201, and the inner wall of the outer straight pipe 201 has a second pipe joint end 402. The second retaining edge 204 between the second stop ring 403, the second retaining edge 204 is constrained between the second pipe joint end 402 and the second stop ring 403, and is used to prevent the second connecting sleeve 2 from The second pipe body 4 is disengaged, and a second air-tight ring 7 is arranged between the second retaining edge 204 and the second limit ring 403. On the one hand, the air-tight ring is made of a soft material and can be placed on the second retaining edge. 204 and the second limit ring 403 generate elastic support force, providing an elastic pre-tightening force; on the other hand, it is used to improve the airtightness between the second connecting sleeve 2 and the second pipe body 4, and the second limit An annular groove is formed on the end surface of the ring 403 facing the second retaining edge 204 , and the second airtight ring 7 is adapted to be embedded in the annular groove of the second limiting ring 403 to prevent the second airtight ring 7 from falling off.

The outer surface of the inner straight pipe 101 is provided with an external thread 103, the inner wall of the outer straight pipe 201 is provided with an internal thread 203, the external thread 103 is suitable for threading with the internal thread 203, and the first connecting sleeve 1 is suitable for connecting with the second connecting sleeve 2 Cooperate so that the first pipe body 3 is tightly inserted in the second pipe body 4. On the one hand, the use of this matching method is because the thread itself has a good sealing performance, which can make the first connecting sleeve 1 and the second connecting sleeve 1 cooperate with each other. The cavity formed between the connecting sleeves 2 is in a sealed state, which further improves the anti-overflow performance of the butt joints of the pipe bodies; on the other hand, the way of rotating feed realizes the insertion and extrusion between the pipe bodies is more labor-saving. In a word, the way of tightening Compared with plug-in, snap-in or bolted connection, the water-proof effect is better.

Both the first connecting sleeve 1 and the second connecting sleeve 2 are provided with outwardly extending flanges, which serve as force-applying handles and form labor-saving levers, making it easier to tighten the first connecting sleeve 1 relative to the second connecting sleeve 2 , and the second connecting sleeve The flange provided on the connecting sleeve 1 is the first flange 102, and the first flange 102 is located at the end of the inner straight pipe 101 away from the second connecting sleeve 2, so that the outer surface of the inner straight pipe 101 is continuously covered with The external thread 103 ensures the strength of thread fit. The flange set on the second connecting sleeve 2 is the second flange 202, and the setting position of the second flange 202 can be more random, because the second flange The setting position of 202 does not affect the setting length of the internal thread 203, generally the second flange 202 can be located at any position on the outer side of the outer straight pipe 201, and usually the second flange 202 will be aligned with the outer straight pipe 201. The tube 201 is integrally formed to reduce welding process steps, and the integrally formed structure has higher strength and better stability.

The installation method of the water pipe connecting flange: after the product is produced, the connecting sleeve cannot be separated from the corresponding pipe body, and the sealing structure is difficult to fall off from the pipe body, which can effectively prevent parts from being lost and incomplete during use. When connecting, it is necessary to fix the pipe joint ends of the two pipe bodies with the ends of the water pipes to be connected, usually through clamps, and align the intubation tube 301 of the first pipe body 3 with the second pipe body 4 after completion The cannula 401 is pre-inserted and does not need to be inserted to the bottom. Of course, it can be inserted directly to the bottom, but the outer wall of the cannula 301 and the inner wall of the cannula 401 are relatively close, so it will be more laborious to insert. , when the insertion is laborious, the intubation tube 301 can be slowly inserted into the sleeve tube 401 by means of rotary feeding with the help of the corresponding connecting sleeve provided outside the tube body and the thread structure that the connecting sleeve can cooperate with each other until the intubation tube The end of the 301 presses the sealing ring 6 inside the casing 401 to complete the sealing butt joint of the water pipes. The joints of the well-joined water pipes are affected by the three-layer sealing structure and have excellent water leakage prevention functions.

The basic principles, main features and advantages of the present application have been described above. Those skilled in the art should understand that the present application is not limited by the above-mentioned embodiments, and what is described in the above-mentioned embodiments and description is only the principle of the present application, and there will be various other aspects in the present application without departing from the spirit and scope of the present application. Variations and improvements, which fall within the scope of the claimed application. The scope of protection required in this application is defined by the appended claims and their equivalents.

Claims (8)

1. A water pipe connection flange, characterized in that: it includes a first pipe body (3) and a second pipe body (4) that can be inserted into each other, and the inner wall of the second pipe body (4) is provided with a sealing ring (6), the first pipe body (3) is inserted into the second pipe body (4), and the end of the first pipe body (3) withstands and squeezes the sealing ring (6), In this way, the inner channel of the first pipe body (3) and the second pipe body (4) is sealed off from the gap between the outer wall of the first pipe body (3) and the inner wall of the second pipe body (4), and the first pipe body (4) A first connecting sleeve (1) is provided on the outside of a pipe body (3), a second connecting sleeve (2) is provided on the outside of the second pipe body (4), and the first connecting sleeve (1) and the second connecting sleeve (1) Both connecting sleeves (2) are provided with outwardly extending flanges, and the first connecting sleeve (1) is adapted to cooperate with the second connecting sleeve (2) so that the first pipe body (3) Insert it tightly in the second pipe body (4). 2. The water pipe coupling flange according to claim 1, characterized in that: the outer wall of the first pipe body (3) fits the inner wall of the second pipe body (4), and the second pipe body The inner wall of (4) has an inner flange (404), and the sealing ring (6) is stuck on the end surface of the inner flange (404). 3. The water pipe coupling flange according to claim 1, characterized in that: the main part of the first pipe body (3) is a cannula (301), and the cannula (301) is far away from the second pipe One end of the body (4) is a first pipe connection end (302), the outer surface of the cannula (301) has a coaxial first stop ring (303), and the main body of the first connecting sleeve (1) The part is an inner straight pipe (101), the inner wall of the inner straight pipe (101) has a first retaining edge (104) located between the first pipe connection end (302) and the first stop ring (303) The main part of the second pipe body (4) is a sleeve (401), and the end of the sleeve (401) away from the first pipe body (3) is a second pipe connection end (402), so The outer surface of the sleeve (401) has a coaxial second stop ring (403), the main part of the second connecting sleeve (2) is an outer straight tube (201), and the outer straight tube (201) The inner wall has a second retaining edge (204) located between the second pipe connection end (402) and the second limiting ring (403). 4. The water pipe coupling flange according to claim 3, characterized in that: the first connecting sleeve (1) is movably connected to the outside of the insertion pipe (301), and the outer side of the inner straight pipe (101) The side is provided with an external thread (103), the second connecting sleeve (2) is movably connected to the outside of the sleeve (401), and the inner wall of the outer straight pipe (201) is provided with an internal thread (203), so The external thread (103) is suitable for screwing with the internal thread (203). 5. The water pipe connection flange according to any one of claims 3-4, characterized in that: a first air gap is arranged between the first retaining edge (104) and the first limiting ring (303). An airtight ring (5), a second airtight ring (7) is arranged between the second retaining edge (204) and the second limiting ring (403). 6. The water pipe coupling flange according to claim 5, characterized in that: the end surface of the first limiting ring (303) opposite to the first retaining edge (104) is provided with an annular groove, and the first The air-tight ring (5) is adapted to be embedded in the annular groove of the first limiting ring (303); the end surface of the second limiting ring (403) facing the second retaining edge (204) has An annular groove, the second air-tight ring (7) is adapted to be embedded in the annular groove of the second limiting ring (403). 7. The water pipe coupling flange according to claim 2, characterized in that: the inner wall of the second pipe body (4) is provided with an annular groove at the end of the inner flange (404), and the sealing ring (6) is adapted to be embedded in the annular groove. 8. The water pipe connection flange according to claim 6, characterized in that: the flange provided on the first connecting sleeve (1) is a first flange (102), and the first flange (102) is located at the end of the inner straight pipe (101) away from the second connecting sleeve (2), and the flange provided on the second connecting sleeve (2) is the second flange (202) , the second flange (202) is located on the outer surface of the outer straight pipe (201), and is integrally formed with the outer straight pipe (201).

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