Stainless steel quick connector with good fastening effect

Abstract

The utility model discloses a stainless steel quick connector with a good fastening effect, which relates to the technical field of stainless steel and comprises a first connecting pipe, a second connecting pipe and a sealing butt-joint pipe, and the inner wall of the sealing butt-joint pipe is fixedly connected with a butt-joint inner ring. The two sides of the butt joint inner ring are fixedly connected with a first sealing built-in pipe and a second sealing built-in pipe which are located in the sealing butt joint pipe correspondingly. The sealing butt-joint pipe, the first sealing air bag ring, the auxiliary connecting ring, the second sealing air bag ring and the auxiliary ring are used in cooperation, so that multiple sealing effects can be formed among the first sealing built-in pipe, the second sealing built-in pipe and the sealing butt-joint pipe; the first sealing air bag ring and the second sealing air bag ring can be attached to the inner wall of the first connecting pipe after being extruded through the supporting effect of a resistance pushing ring and a second inner supporting spring which are installed on the inner walls of the first sealing air bag ring and the second sealing air bag ring correspondingly, and effective sealing is formed.

Description

Technical Field

[0001] The utility model relates to the technical field of stainless steel, in particular to a stainless steel quick connector with good fastening effect. Background Art

[0002] According to GB / T20878 2007, stainless steel is defined as steel with stainless and corrosion-resistant properties as its main characteristics, with a chromium content of at least 10.5% and a carbon content of no more than 1.2%. Stainless steel is the abbreviation of stainless acid-resistant steel. Steel that is resistant to weak corrosive media such as air, steam, and water or has rust resistance is called stainless steel; steel that is resistant to chemical corrosive media (acids, alkalis, salts, etc.) is called acid-resistant steel. Due to the difference in chemical composition between the two, their corrosion resistance varies. Ordinary stainless steel is generally not resistant to chemical corrosion, while acid-resistant steel is generally rust-resistant. The term "stainless steel" does not simply refer to one type of stainless steel, but refers to more than 100 types of industrial stainless steel. Each developed stainless steel has excellent performance in its specific application field. Stainless steel pipes used in daily life require stainless steel joints when connecting them. Although the existing joints are firmly connected, they cannot guarantee sealing and are prone to gaps and water leakage after installation. Utility Model Content

[0003] The purpose of the utility model is to provide a stainless steel quick connector with good fastening effect, so as to solve the problems raised in the above background technology.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] A stainless steel quick connector with good fastening effect includes a first connecting pipe, a second connecting pipe and a sealed butt joint pipe, wherein the inner wall of the sealed butt joint pipe is fixedly connected to a butt joint inner ring, and the two sides of the butt joint inner ring are respectively fixedly connected to a first sealed inner pipe and a second sealed inner pipe located inside the sealed butt joint pipe.

[0006] One end of the first sealed inner tube and the second sealed inner tube away from the docking inner ring is plugged into the inner wall of the first connecting tube and the second connecting tube respectively.

[0007] The end of the first sealing built-in tube away from the docking inner ring is fixedly connected to the first sealing airbag ring, the inner wall of the first sealing airbag ring is provided with a first inner support spring for supporting its inner wall, the side of the first sealing airbag ring away from the first sealing built-in tube is fixedly connected to an auxiliary connecting ring, the side of the auxiliary connecting ring away from the first sealing airbag ring is fixedly connected to a second sealing airbag ring, the inner wall of the second sealing airbag ring is provided with a second inner support spring for supporting its inner wall, the inner wall of the auxiliary connecting ring is fixedly connected to a resistance pushing ring, and the side of the second sealing airbag ring away from the auxiliary connecting ring is fixedly connected to an auxiliary ring.

[0008] A further improvement of the technical solution of the present utility model is that: the first sealed built-in tube and the second sealed built-in tube have the same structure and are in opposite directions; the interior of the first sealed airbag ring is filled with inert gas; one side of the auxiliary connecting ring is fixedly connected to one end of the second inner support spring; and the other side of the auxiliary connecting ring is fixedly connected to one end of the resistance push ring.

[0009] A further improvement of the technical solution of the present invention is that one end of the first connecting tube is plugged into the inner wall of one end of the sealed butt joint tube close to the first sealed built-in tube, and one end of the second connecting tube is plugged into the inner wall of one end of the sealed butt joint tube close to the second sealed built-in tube.

[0010] A further improvement of the technical solution of the present utility model is that a second ring is fixedly connected to the outer wall of one end of the second connecting pipe close to the sealing butt pipe, a first ring is fixedly connected to the outer wall of one end of the first connecting pipe close to the sealing butt pipe, and a bolt insertion hole is opened at one end of the sealing butt pipe.

[0011] A further improvement of the technical solution of the present invention is that a first mounting hole and a second mounting hole for installing a fastening bolt are respectively opened on one side of the first ring and the second ring, and one end of the fastening bolt passes through the first mounting hole, the bolt insertion hole and the second mounting hole in sequence.

[0012] A further improvement of the technical solution of the present utility model is that the number of the fastening bolts is at least four.

[0013] A further improvement of the technical solution of the present utility model is that the ends of the first connecting pipe and the second connecting pipe that are close to each other are overlapped with both sides of the docking inner ring respectively.

[0014] Due to the adoption of the above technical solution, the present invention has achieved the following technical advancements compared to the prior art:

[0015] The utility model provides a stainless steel quick connector with good fastening effect. By using the coordinated use of a sealing butt tube, a first sealing built-in tube, a second sealing built-in tube, a first sealing airbag ring, an auxiliary connecting ring, a second sealing airbag ring and an auxiliary ring, a multiple sealing effect can be formed between the first sealing built-in tube, the first connecting tube, the second connecting tube, the second sealing built-in tube and the sealing butt tube, thereby ensuring the sealing performance of the sealing butt tube after installation.

[0016] The utility model provides a stainless steel quick connector with good fastening effect. The first sealing airbag ring and the second sealing airbag ring are supported by a resistance pushing ring and a second inner support spring respectively installed on the inner walls of the first sealing airbag ring and the second sealing airbag ring, so as to ensure that the first sealing airbag ring and the second sealing airbag ring can fit with the inner wall of the first connecting tube after being squeezed to form an effective seal. At the same time, the overall structure is simple and the manufacturing cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the explosion structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the sealed butt joint structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the details of the first sealed internal tube structure of the present invention.

[0021] In the figure: 1. First connecting tube; 2. Second connecting tube; 3. Sealing butt joint tube; 4. First sleeve ring; 5. Second sleeve ring; 6. Fastening bolt; 7. First sealing built-in tube; 8. Second sealing built-in tube; 9. Butt joint inner ring; 10. Bolt insertion hole; 11. First sealing airbag ring; 12. Auxiliary connecting ring; 13. Second sealing airbag ring; 14. Resistance push ring; 15. First inner support spring; 16. Second inner support spring; 17. Auxiliary ring. DETAILED DESCRIPTION

[0022] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0023] The present invention is further described in detail below with reference to the embodiments:

[0024] like Figure 1-4 As shown, the utility model provides a stainless steel quick connector with good fastening effect, including a first connecting tube 1, a second connecting tube 2 and a sealed butt tube 3, the inner wall of the sealed butt tube 3 is fixedly connected with a butt inner ring 9, and the two sides of the butt inner ring 9 are respectively fixedly connected with a first sealed inner tube 7 and a second sealed inner tube 8 located inside the sealed butt tube 3.

[0025] One end of the first sealed inner tube 7 and the second sealed inner tube 8 away from the docking inner ring 9 is plugged into the inner walls of the first connecting tube 1 and the second connecting tube 2 respectively.

[0026] The end of the first sealing internal tube 7 away from the docking inner ring 9 is fixedly connected to the first sealing airbag ring 11, the inner wall of the first sealing airbag ring 11 is provided with a first inner support spring 15 for supporting its inner wall, the side of the first sealing airbag ring 11 away from the first sealing internal tube 7 is fixedly connected to the auxiliary connecting ring 12, the side of the auxiliary connecting ring 12 away from the first sealing airbag ring 11 is fixedly connected to the second sealing airbag ring 13, the inner wall of the second sealing airbag ring 13 is provided with a second inner support spring 16 for supporting its inner wall, the inner wall of the auxiliary connecting ring 12 is fixedly connected to the resistance pushing ring 14, and the side of the second sealing airbag ring 13 away from the auxiliary connecting ring 12 is fixedly connected to the auxiliary ring 17.

[0027] The first sealed built-in tube 7 and the second sealed built-in tube 8 have the same structure and face opposite directions. The interior of the first sealed airbag ring 11 is filled with inert gas. One side of the auxiliary connecting ring 12 is fixedly connected to one end of the second inner support spring 16, and the other side of the auxiliary connecting ring 12 is fixedly connected to one end of the resistance push ring 14.

[0028] like Figure 1-4 As shown, based on Example 1, the utility model provides a technical solution: preferably, one end of the first connecting tube 1 is plugged into the inner wall of one end of the sealed butt joint tube 3 close to the first sealed built-in tube 7, and one end of the second connecting tube 2 is plugged into the inner wall of one end of the sealed butt joint tube 3 close to the second sealed built-in tube 8.

[0029] A second sleeve 5 is fixedly connected to the outer wall of one end of the second connecting pipe 2 close to the sealing butt pipe 3, and a first sleeve 4 is fixedly connected to the outer wall of one end of the first connecting pipe 1 close to the sealing butt pipe 3. A bolt insertion hole 10 is opened at one end of the sealing butt pipe 3.

[0030] A first mounting hole and a second mounting hole for mounting a fastening bolt 6 are respectively formed on one side of the first collar 4 and the second collar 5 . One end of the fastening bolt 6 passes through the first mounting hole, the bolt insertion hole 10 and the second mounting hole in sequence.

[0031] The number of the fastening bolts 6 is at least four, and the at least four fastening bolts 6 are distributed in a circular array on the outer wall of the first connecting pipe 1 .

[0032] One end of the first connecting pipe 1 and the second connecting pipe 2 close to each other is overlapped with two sides of the docking inner ring 9 respectively.

[0033] The following is a detailed description of the working principle of the stainless steel quick connector with good fastening effect.

[0034] like Figure 1-4 As shown, when in use, the first connecting tube 1, the sealing butt joint tube 3 and the second connecting tube 2 are connected in sequence. At this time, the first sealing built-in tube 7 is inserted into the inner wall of the first connecting tube 1, and the second sealing built-in tube 8 is inserted into the inner wall of the second connecting tube 2. Subsequently, the first collar 4, the sealing butt joint tube 3 and the second collar 5 are fixedly connected by tightening bolts 6, thereby forming a fixed connection state between the first connecting tube 1, the sealing butt joint tube 3 and the second connecting tube 2.

[0035] After the first connecting tube 1 and the second connecting tube 2 are docked through the sealing docking tube 3, when the water in the first connecting tube 1 flows into the second connecting tube 2, the water will first impact one side of the auxiliary ring 17 during the flow in the first connecting tube 1. At this time, the auxiliary ring 17 is forced to squeeze the second sealing airbag ring 13 and the second inner support spring 16. At this time, since the second sealing airbag ring 13 and the second inner support spring 16 are squeezed simultaneously, and the second inner support spring 16 is located on the inner wall of the second sealing airbag ring 13, the inert gas inside the second sealing airbag ring 13 begins to expand and move toward the outer wall of the second sealing airbag ring 13, thereby forming a sealing Sealing ring, and when the auxiliary ring 17 is impacted, the first inner support spring 15 is also squeezed toward the position of the first sealing airbag ring 11, so that the first sealing airbag ring 11 and the second sealing airbag ring 13 form the same change, thereby forming a second sealing ring, thereby improving the connection sealing between the first sealing built-in tube 7 and the first connecting tube 1, and after water is passed into the first connecting tube 1, the water pressure inside the first connecting tube 1 will also squeeze the first sealing airbag ring 11 and the second sealing airbag ring 13, so that the two fit more closely with the inner wall of the first connecting tube 1, thereby further improving the sealing formed between the sealing butt joint tube 3, the first connecting tube 1 and the first sealing built-in tube 7.

[0036] Since the second sealed built-in tube 8 has a different direction from the first sealed built-in tube 7, the first sealing airbag ring 11 and the second sealing airbag ring 13 in the second sealed built-in tube 8 will begin to expand and move in the direction of fitting with the inner wall of the second connecting tube 2 under the action of water pressure, thereby improving the sealing between the second connecting tube 2 and the second sealed built-in tube 8.

[0037] By using the sealing butt joint tube 3, the first sealing built-in tube 7, the second sealing built-in tube 8, the first sealing airbag ring 11, the auxiliary connecting ring 12, the second sealing airbag ring 13 and the auxiliary ring 17 in combination, a multiple sealing effect can be formed between the first sealing built-in tube 7, the first connecting tube 1, the second connecting tube 2, the second sealing built-in tube 8 and the sealing butt joint tube 3, thereby ensuring the sealing performance of the sealing butt joint tube 3 after installation.

[0038] The resistance pushing ring 14 and the second inner support spring 16 installed on the inner walls of the first sealing airbag ring 11 and the second sealing airbag ring 13 respectively support the two, ensuring that the first sealing airbag ring 11 and the second sealing airbag ring 13 can fit with the inner wall of the first connecting tube 1 after being squeezed to form an effective seal. At the same time, the overall structure is simple and the manufacturing cost is low.

[0039] At the same time, the elastic force of the resistance push ring 14 and the second inner support spring 16 can ensure that the first sealing airbag ring 11 and the second sealing airbag ring 13 are in a reasonable deformation range, avoiding the problem of excessive deformation of the first sealing airbag ring 11 and the second sealing airbag ring 13 affecting the sealing effect.

[0040] The above generally describes the present invention in detail. However, it is obvious to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A stainless steel quick connector with good fastening effect, comprising a first connecting pipe (1), a second connecting pipe (2) and a sealing butt pipe (3), characterized in that: The inner wall of the sealed butt joint tube (3) is fixedly connected to a butt joint inner ring (9), and both sides of the butt joint inner ring (9) are respectively fixedly connected to a first sealed inner tube (7) and a second sealed inner tube (8) located inside the sealed butt joint tube (3); One end of the first sealed internal tube (7) and the second sealed internal tube (8) away from the docking inner ring (9) is plugged into the inner wall of the first connecting tube (1) and the inner wall of the second connecting tube (2), respectively; The first sealing inner tube (7) is fixedly connected to the first sealing airbag ring (11) at one end away from the docking inner ring (9); the inner wall of the first sealing airbag ring (11) is provided with a first inner support spring (15) for supporting the inner wall thereof; the first sealing airbag ring (11) is fixedly connected to the side away from the first sealing inner tube (7) with an auxiliary connecting ring (12); the auxiliary connecting ring (12) is fixedly connected to the side away from the first sealing airbag ring (11) with a second sealing airbag ring (13); the inner wall of the second sealing airbag ring (13) is provided with a second inner support spring (16) for supporting the inner wall thereof; the inner wall of the auxiliary connecting ring (12) is fixedly connected to a resistance pushing ring (14); and the side of the second sealing airbag ring (13) away from the auxiliary connecting ring (12) is fixedly connected to an auxiliary ring (17).

2. A stainless steel quick connector with good fastening effect according to claim 1, characterized in that: The first sealing built-in tube (7) and the second sealing built-in tube (8) have the same structure and face opposite directions. The interior of the first sealing airbag ring (11) is filled with inert gas. One side of the auxiliary connecting ring (12) is fixedly connected to one end of the second inner support spring (16), and the other side of the auxiliary connecting ring (12) is fixedly connected to one end of the resistance pushing ring (14).

3. A stainless steel quick connector with good fastening effect according to claim 1, characterized in that: One end of the first connecting tube (1) is plugged into the inner wall of one end of the sealing butt joint tube (3) close to the first sealed built-in tube (7), and one end of the second connecting tube (2) is plugged into the inner wall of one end of the sealing butt joint tube (3) close to the second sealed built-in tube (8).

4. A stainless steel quick connector with good fastening effect according to claim 1, characterized in that: A second sleeve (5) is fixedly connected to the outer wall of one end of the second connecting pipe (2) close to the sealing butt joint pipe (3), and a first sleeve (4) is fixedly connected to the outer wall of one end of the first connecting pipe (1) close to the sealing butt joint pipe (3). A bolt insertion hole (10) is provided at one end of the sealing butt joint pipe (3).

5. A stainless steel quick connector with good fastening effect according to claim 4, characterized in that: A first mounting hole and a second mounting hole for mounting a fastening bolt (6) are respectively provided on one side of the first collar (4) and the second collar (5), and one end of the fastening bolt (6) passes through the first mounting hole, the bolt insertion hole (10) and the second mounting hole in sequence.

6. A stainless steel quick connector with good fastening effect according to claim 5, characterized in that: The number of the fastening bolts (6) is at least four.

7. A stainless steel quick connector with good fastening effect according to claim 1, characterized in that: The ends of the first connecting pipe (1) and the second connecting pipe (2) that are close to each other are overlapped with both sides of the docking inner ring (9) respectively.

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