Stainless steel pipe structure convenient to install and connect

Abstract

The utility model discloses a stainless steel pipe structure convenient to install and connect, which belongs to the technical field of stainless steel pipes and comprises a pipe main body, a closed joint, a pipe inserting section and a locking threaded cover, the two ends of the pipe main body are connected with the closed joint and the pipe inserting section, and the locking threaded cover is sleeved outside the pipe inserting section in a sliding mode, is clamped with an outer protrusion and is used for abutting against the locking threaded cover to limit the maximum displacement of the locking threaded cover. An inner cylinder and an outer cylinder are fixedly arranged on the inner cylinder, and an inserting groove used for being connected with the inserting pipe section in an inserted mode is defined between the inner cylinder and the outer cylinder. According to the technical scheme, during connection, only the insertion pipe section needs to be aligned with the insertion groove of the closed connector to be inserted, then the locking threaded cover is screwed to be in threaded connection with the closed connector, and firm connection between the adjacent pipe bodies can be achieved through the clamping effect between the locking threaded cover and the clamping outer protrusion; therefore, water seepage is not prone to occurring at the connecting position, and external tools and connecting pieces are not needed in the whole installation process.

Description

Technical Field

[0001] The utility model relates to the technical field of stainless steel pipes, in particular to a stainless steel pipe structure which is convenient for installation and connection. Background Technique

[0002] A stainless steel pipe is a hollow long circular steel, mainly made of stainless steel, with excellent corrosion resistance, wear resistance, pressure indentation resistance and good mechanical properties. It has a wide range of applications in multiple fields, including but not limited to industrial conveying pipelines such as petroleum, chemical industry, medical treatment, food, light industry, mechanical instruments, etc. and mechanical structure components. When in use, multiple pipe segments usually need to be spliced into a complete transportation path.

[0003] Most of the existing connection and installation methods between stainless steel pipe fittings and steel pipes are through flange connection, clamp connection, etc. Most of the above connection methods require the cooperation of tools, such as various wrenches and bolt connectors for cooperation, which will bring a lot of inconvenience to the work of workers due to the installation method and the need to carry tool connectors. There is also a connection method using threaded connection. In the installation process of this method, the pipe fittings need to rotate the connection threads for connection. When applied to elbow connection, it will bring a lot of inconvenience due to the rotation angle problem, thus reducing the installation efficiency. Therefore, in view of the above problems, a stainless steel pipe structure which is convenient for installation and connection is proposed. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a stainless steel pipe structure which is convenient for installation and connection. When the stainless steel pipes are connected, only the insertion pipe section needs to be aligned and inserted into the insertion slot of the sealed joint to complete the preliminary connection. Then, the locking thread cover is screwed to be threadedly connected with the sealed joint. Finally, through the clamping action between the locking thread cover and the clamping protrusion and the threaded connection action between the locking thread cover and the sealed joint, the firm connection between adjacent pipe bodies can be realized. And because the insertion pipe section is tightly inserted into the insertion slot, water leakage is not likely to occur at the connection. The whole installation process does not require external tools and connectors, and the operation is very simple and fast, solving the technical problems in the prior art that tools or connectors are usually required during connection, and there will be an angular deviation during rotation when the threaded connection method is applied to elbow pipes, which brings a lot of inconvenience to the work of workers and reduces the installation efficiency.

[0005] The technical solution adopted by the embodiments of the present application to solve its technical problems is:

[0006] A stainless steel pipe structure facilitating installation and connection, comprising a pipe body, with a sealed joint fixedly connected to one end and an insertion pipe section fixedly connected to the other end; a locking threaded cover, which is slidably sleeved outside the insertion pipe section and is threadedly connected to the outer wall of the sealed joint; a clamping protrusion, which is located at the junction of the insertion pipe section and the pipe body and is used to resist the locking threaded cover to limit its maximum displacement. Among them, the sealed joint includes an end plate, on which an inner cylinder and an outer cylinder are fixedly arranged, and an insertion slot for inserting the insertion pipe section is formed by enclosing between the inner cylinder and the outer cylinder.

[0007] Through the above structural form, during connection, only need to align the insertion pipe section with the insertion slot of the sealed joint and insert it to complete the preliminary connection. Subsequently, rotate the locking threaded cover to threadedly connect it with the sealed joint. Finally, through the clamping effect between the locking threaded cover and the clamping protrusion and the threaded connection effect between the locking threaded cover and the sealed joint, the firm connection between adjacent pipe bodies can be realized. And because the insertion pipe section is closely inserted into the insertion slot, it is not easy to seep water at the connection. The whole installation process does not require external tools and connectors, and the operation is very simple and fast.

[0008] In a possible implementation manner, a plurality of strip-shaped through slots distributed in a circumferential array are opened on the outer cylinder, and a sealed rubber film with three sides hermetically connected to the outer cylinder is arranged in the strip-shaped through slots.

[0009] Through the above structural form, the opened strip-shaped through slots can allow the outer cylinder to have a certain elastic deformation ability. Then, when the insertion pipe section is inserted, it can allow the insertion pipe section to be inserted smoothly by deforming and expanding the diameter, further improving the convenience of connection. Subsequently, when the locking threaded cover is threadedly connected, it can squeeze the outer cylinder to deform and closely fit with the insertion pipe section, playing a role of tightening and further improving the tightness of the connection. And the sealed rubber film can play a role of closing the strip-shaped through slots.

[0010] In a possible implementation manner, an external thread is opened on the outer wall of the outer cylinder, and an internal thread with a matching size is opened on the inner wall of the locking threaded cover.

[0011] Through the above structural form, the opening of the external thread and the internal thread can provide a necessary structural basis for the threaded connection between the locking threaded cover and the sealed joint.

[0012] In a possible implementation manner, a resisting ring is fixedly arranged on the inner wall at the end of the locking threaded cover. At the same time, an anti-loosening member is slidably sleeved on the pipe body, and the anti-loosening member is located between the resisting ring and the clamping protrusion.

[0013] Through the above structural form, when tightening the locking threaded cover, the resisting ring can apply a thrust to the anti-loosening member, and the anti-loosening member can transmit the thrust to the clamping protrusion, pushing the insertion pipe section to be completely and closely inserted into the insertion slot to ensure the tightness of the connection.

[0014] In a possible implementation, the anti-loosening member includes a push ring slidably sleeved on the pipe body, and a spring sleeved outside the pipe body is fixedly connected to the push ring.

[0015] With the above structural form, when pressure is applied to the abutting ring, the spring is in a compressed state, and it will continuously apply an outward thrust to the locking thread cover through the push ring to ensure that the external thread and the internal thread are closely fitted, which can play a role in preventing the loosening of the threaded connection.

[0016] In a possible implementation, a plurality of water-blocking rings distributed in an array are fixedly arranged on the outer wall of the inner cylinder, and the water-blocking rings are thin film rings made of rubber.

[0017] With the above structural form, after being squeezed by the insertion section, the water-blocking rings can be deformed to form a plurality of water-blocking structures, which can effectively prevent liquid from seeping out from the connection part.

[0018] In a possible implementation, a limiting ring is fixedly arranged at one end of the pipe body where the insertion section is located, and the limiting ring is arranged close to the locking thread cover.

[0019] With the above structural form, the arranged limiting ring can play a role in restricting the movement range of the locking thread cover, and avoid the inconvenience caused by the free sliding of the locking thread cover on the pipe body.

[0020] In a possible implementation, the inner diameter of the inner cylinder is equal to the inner diameter of the pipe body, and the cross-sectional dimension of the insertion section is equal to the cross-sectional dimension of the insertion slot.

[0021] With the above structural form, the smoothness and tightness of the connection part can be ensured.

[0022] In summary, the utility model has the following beneficial technical effects:

[0023] During connection, only need to align the insertion section with the insertion slot of the sealed joint and insert it to complete the preliminary connection, then twist the locking thread cover to make it threadedly connected with the sealed joint. Finally, through the clamping action between the locking thread cover and the clamping protrusion and the threaded connection action between the locking thread cover and the sealed joint, the firm connection between adjacent pipe bodies can be realized. And because the insertion section is tightly inserted into the insertion slot, it is not easy to seep water at the connection part. The whole installation process does not need to rely on external tools and connectors, and the operation is very simple and fast;

[0024] The provided strip-shaped through slots can allow the outer cylinder to have a certain elastic deformation ability. Thus, when the intubation section is inserted, it can allow the intubation section to be smoothly inserted by deforming and expanding the diameter, further improving the convenience of connection. Subsequently, when the locking threaded cover is threadedly connected, it can squeeze the outer cylinder to deform and closely fit with the intubation section, playing a role in tightening and further improving the tightness of the connection. The airtight film can play a role in sealing the strip-shaped through slots. Brief Description of the Drawings

[0025] The drawings are used to provide a further understanding of the present invention and form a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0026] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 is a cross-sectional view of the overall structure of the present invention;

[0028] Figure 3 is a schematic diagram of the airtight joint structure of the present invention;

[0029] Figure 4 is a schematic diagram of the connection state of the present invention.

[0030] In the figures: 1, pipe main body; 11, limiting ring; 2, airtight joint; 21, end head plate; 22, inner cylinder; 23, outer cylinder; 24, insertion slot; 25, airtight film; 26, external thread; 27, water-blocking ring; 3, intubation section; 31, clamping protrusion; 4, locking threaded cover; 41, abutting ring; 42, internal thread; 5, anti-loosening member; 51, pushing ring; 52, spring. Detailed Description of the Embodiment

[0031] The technical solutions in the embodiments of the present application are to solve the problems in the above-mentioned background technology, and the general idea is as follows:

[0032] As Figure 1 - Figure 2As shown in the figure, a stainless steel pipe structure that is convenient for installation and connection provided in this embodiment includes a pipe body 1, one end of which is fixedly connected with a sealed joint 2, and the other end is fixedly connected with an insertion pipe section 3. A locking threaded cover 4 is slidably sleeved outside the insertion pipe section 3 and is threadedly connected with the outer wall of the sealed joint 2. A clamping protrusion 31 is located at the junction of the insertion pipe section 3 and the pipe body 1, and is used to resist the locking threaded cover 4 to limit its maximum displacement. Among them, the sealed joint 2 includes an end plate 21, on which an inner cylinder 22 and an outer cylinder 23 are fixedly arranged. An insertion slot 24 for inserting the insertion pipe section 3 is formed by enclosing between the inner cylinder 22 and the outer cylinder 23. Through the above structural form, during connection, only the insertion pipe section 3 needs to be aligned with the insertion slot 24 of the sealed joint 2 and inserted to complete the preliminary connection. Then, the locking threaded cover 4 is rotated to be threadedly connected with the sealed joint 2. Finally, through the clamping action between the locking threaded cover 4 and the clamping protrusion 31 and the threaded connection action between the locking threaded cover 4 and the sealed joint 2, the firm connection between adjacent pipe bodies 1 can be realized. And because the insertion pipe section 3 is tightly inserted into the insertion slot 24, water leakage is not likely to occur at the connection. The entire installation process does not require external tools and connectors, and at the same time, the operation is very simple and fast.

[0033] As Figure 3 shown, a plurality of strip-shaped through grooves distributed in a circumferential array are formed on the outer cylinder 23. A sealed rubber film 25 with three sides hermetically connected to the outer cylinder 23 is arranged in the strip-shaped through grooves. Through the above structural form, the formed strip-shaped through grooves can allow the outer cylinder 23 to have a certain elastic deformation ability. Then, when the insertion pipe section 3 is inserted, it can allow the insertion pipe section 3 to be inserted smoothly by deforming and expanding the diameter, further improving the convenience of connection. Subsequently, when the locking threaded cover 4 is threadedly connected, it can squeeze the outer cylinder 23 to deform and closely fit with the insertion pipe section 3, playing a role of tightening and further improving the tightness of the connection. And the sealed rubber film 25 can play a role of closing the strip-shaped through grooves.

[0034] As Figure 2 、 Figure 4 shown, an external thread 26 is formed on the outer wall of the outer cylinder 23, and an internal thread 42 with a matching size is formed on the inner wall of the locking threaded cover 4. Through the above structural form, the formed external thread 26 and internal thread 42 can provide a necessary structural basis for the threaded connection between the locking threaded cover 4 and the sealed joint 2.

[0035] A resisting ring 41 is fixedly arranged on the inner wall at the end of the locking threaded cover 4. At the same time, an anti-loosening member 5 is slidably sleeved on the pipe body 1. The anti-loosening member 5 is located between the resisting ring 41 and the clamping protrusion 31. Through the above structural form, when the locking threaded cover 4 is tightened, the resisting ring 41 can apply a thrust to the anti-loosening member 5, and the anti-loosening member 5 can transmit the thrust to the clamping protrusion 31, pushing the insertion pipe section 3 to be completely and tightly inserted into the insertion slot 24 to ensure the tightness of the connection.

[0036] Among them, the anti-loosening member 5 includes a push ring 51 slidably sleeved on the pipe body 1, and a spring 52 sleeved outside the pipe body 1 is fixedly connected to the push ring 51. In this structural form, when the pressure is applied by the abutting ring 41, the spring 52 is in a compressed state, and it will continuously apply an external thrust to the locking threaded cover 4 through the push ring 51 to ensure the tight fit between the external thread 26 and the internal thread 42, which can prevent the loosening of the threaded connection.

[0037] As Figure 2 shown, a number of water-blocking rings 27 distributed in an array are fixedly arranged on the outer wall of the inner cylinder 22. The water-blocking rings 27 are thin film rings made of rubber material. In this structural form, after being squeezed by the insertion section 3, the water-blocking rings 27 can be deformed to form a number of water-blocking structures, which can effectively prevent the liquid from leaking out from the connection part.

[0038] As Figure 1 、 Figure 4 shown, a limit ring 11 is fixedly arranged at one end of the pipe body 1 where the insertion section 3 is located. The position of the limit ring 11 is close to the locking threaded cover 4. In this structural form, the set limit ring 11 can be used to restrict the movement range of the locking threaded cover 4, avoiding the inconvenience caused by the free sliding of the locking threaded cover 4 on the pipe body 1.

[0039] As Figure 2 、 Figure 4 shown, the inner diameter of the inner cylinder 22 is equal to the inner diameter of the pipe body 1, and the cross-sectional dimension of the insertion section 3 is equal to the cross-sectional dimension of the insertion slot 24. In this structural form, the smoothness and tightness of the connection part can be ensured.

[0040] The working principle and process of the utility model are as follows:

[0041] During connection, only need to align the insertion section 3 with the insertion slot 24 of the sealed joint 2 and insert it to complete the preliminary connection. Then, turn the locking threaded cover 4 to make it threadedly connected with the sealed joint 2. Finally, through the clamping action between the locking threaded cover 4 and the clamping protrusion 31 and the threaded connection action between the locking threaded cover 4 and the sealed joint 2, the firm connection between adjacent pipe bodies 1 can be realized. And because the insertion section 3 is tightly inserted into the insertion slot 24, water leakage is not likely to occur at the connection part. The whole installation process does not require external tools and connectors, and the operation is very simple and fast;

[0042] In addition, the strip-shaped through slots formed in the outer cylinder 23 can endow it with a certain elastic deformation ability. Thus, when the intubation section 3 is inserted, it can allow the intubation section 3 to be smoothly inserted by deforming and expanding the diameter, further improving the convenience of connection. Subsequently, when the locking threaded cover 4 is threadedly connected, it can squeeze the outer cylinder 23 to deform and closely fit with the intubation section 3, playing a role in tightening and further improving the tightness at the connection. The airtight film 25 can play a role in sealing the strip-shaped through slots.

[0043] Finally, it should be noted that: Obviously, the above embodiments are merely examples given for clearly illustrating the present invention, rather than limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. The obvious changes or variations derived therefrom still fall within the protection scope of the present invention.

Claims

1. A stainless steel pipe structure convenient for installation and connection, characterized in that, include: A pipe body (1) having a sealed joint (2) fixedly connected at one end and an inserting pipe section (3) fixedly connected at the other end; A locking thread cover (4) is slidably sleeved outside the inserting tube section (3) and is threadedly connected to the outer wall of the sealed joint (2); A clamping protrusion (31) is located at the junction of the insertion tube section (3) and the tube body (1) and is used to resist the locking thread cover (4) to limit its maximum displacement; The sealed joint (2) comprises an end plate (21) on which an inner tube (22) and an outer tube (23) are fixedly arranged, and a plug-in groove (24) for plugging in the plug-in pipe section (3) is formed between the inner tube (22) and the outer tube (23).

2. The stainless steel pipe structure that is convenient for installation and connection according to claim 1, wherein: The outer cylinder (23) is provided with a plurality of strip-shaped through grooves distributed in a circumferential array, and a sealing rubber film (25) is provided in the strip-shaped through grooves, the three sides of which are sealedly connected to the outer cylinder (23).

3. A stainless steel pipe structure that is convenient for installation and connection according to claim 1, wherein: The outer wall of the outer cylinder (23) is provided with an external thread (26), and the inner wall of the locking thread cover (4) is provided with an internal thread (42) of a corresponding size.

4. A stainless steel pipe structure facilitating installation and connection according to claim 1, characterized in that: A retaining ring (41) is fixedly arranged on the inner wall of the end of the locking threaded cover (4), and a sliding sleeve is provided on the pipe body (1) to prevent loosening. The anti-loosening member (5) is located between the retaining ring (41) and the clamping outer protrusion (31).

5. The stainless steel pipe structure convenient for installation and connection according to claim 4, characterized in that: The anti-loosening member (5) comprises a push ring (51) slidably mounted on the pipe body (1), and a spring (52) mounted outside the pipe body (1) is fixedly connected to the push ring (51).

6. A stainless steel pipe structure facilitating installation and connection according to claim 1, characterized in that: A plurality of water-blocking rings (27) distributed in an array are fixedly arranged on the outer wall of the inner cylinder (22), and the water-blocking rings (27) are thin film rings made of rubber material.

7. The stainless steel pipe structure that is convenient for installation and connection according to claim 1, wherein: The pipe body (1) is provided with a tube insertion section (3) at one end of which a limiting ring (11) is fixedly arranged, and the limiting ring (11) is arranged at a position close to the locking thread cover (4).

8. A stainless steel pipe structure facilitating installation and connection according to claim 1, characterized in that: The inner diameter of the inner tube (22) is equal to the inner diameter of the pipe body (1), and the cross-sectional dimension of the pipe inserting section (3) is equal to the cross-sectional dimension of the inserting groove (24).

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