CN215674067U - High pressure resistant seamless steel pipe - Google Patents
High pressure resistant seamless steel pipe Download PDFInfo
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- CN215674067U CN215674067U CN202121733389.2U CN202121733389U CN215674067U CN 215674067 U CN215674067 U CN 215674067U CN 202121733389 U CN202121733389 U CN 202121733389U CN 215674067 U CN215674067 U CN 215674067U
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Abstract
The utility model discloses a high-pressure-resistant seamless steel tube, relates to the technical field of seamless steel tubes, solves the technical problem of poor sealing effect of the conventional device, comprises a first steel tube and a second steel tube, a connecting sleeve is sleeved outside the joint of the first steel pipe and the second steel pipe, the cross section of the side wall of the connecting sleeve is of a n-shaped structure, the n-shaped structure comprises a first round pipe, two side vertical edges and two second round pipes, wherein the outer wall surface of one end of each of the two second round pipes is provided with a thread groove, a threaded sleeve is screwed on the threaded groove, a plurality of through holes are formed in the two second circular pipes and positioned on one side of the threaded groove, plug blocks are inserted into the through holes, install two sealing washer that the same direction of structure is opposite in the first pipe, this device can outwards expand under the effect of pressure through the sealing washer that the cross-section is C type structure to can realize the effect that the big sealing washer sealing effect of pressure is stronger.
Description
Technical Field
The utility model relates to the technical field of seamless steel pipes, in particular to a high-pressure-resistant seamless steel pipe.
Background
Seamless steel pipe has the cavity cross-section, be used as the pipeline of transport fluid in a large number, if carry the oil, the natural gas, coal gas, the pipeline of water and certain solid material etc, the steel pipe is compared with solid steel such as round steel, it is the same at bending resistance torsional strength, light in weight, be an economic cross-section steel, along with the use to seamless steel pipe, need be connected seamless steel pipe in long distance transport, in the utility model patent that bulletin number is CN210088212U, a high pressure hydraulic cylinder accurate seamless pipe convenient to installation is disclosed, including left seamless steel pipe body and right seamless steel pipe body, the circular tight hoop cover of left side seamless steel pipe body and right seamless steel pipe body connection end, be equipped with the sealing washer between circular tight hoop cover and left seamless steel pipe body and the right seamless steel pipe body. According to the high-pressure hydraulic cylinder precision seamless pipe convenient to install, the sealing rings are sleeved on the outer sealing ring grooves of the left seamless steel pipe body and the right seamless steel pipe body after the two ports of the left seamless steel pipe body and the right seamless steel pipe body are correspondingly matched, then the circular tightening sleeves are sleeved on the left seamless steel pipe body and the right seamless steel pipe body, the circular clamping teeth and the sealing ring grooves of the left seamless steel pipe body and the right seamless steel pipe body respectively correspond to the clamping grooves and the sealing ring grooves of the left seamless steel pipe body and the right seamless steel pipe body, and then the left seamless steel pipe body and the right seamless steel pipe body are connected in a sealing and fastening mode through the locking and fixing bolts.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides a high-pressure-resistant seamless steel tube, and solves the technical problem that the sealing effect of the prior device is poor.
In order to achieve the purpose, the utility model is realized by the following technical scheme: a high-pressure-resistant seamless steel pipe comprises a first steel pipe and a second steel pipe, wherein a connecting sleeve is sleeved outside the joint of the first steel pipe and the second steel pipe, the cross section of the side wall of the connecting sleeve is of a n-shaped structure, the n-shaped structure comprises a first round pipe, two side vertical edges and two second round pipes, the diameter of the first round pipe is larger than that of the two second round pipes, the first round pipe is connected with the two second round pipes through the two side vertical edges, the outer wall surface of one end of each of the two second round pipes is provided with a thread groove, a thread sleeve is screwed on the thread groove, a plurality of through holes are respectively formed in one side of the thread groove on the two second round pipes, inserting blocks are respectively inserted in the through holes, positioning grooves are respectively formed in the first steel pipe and the second steel pipe, one end of each inserting block is inserted in the positioning groove, and the other end of each inserting block is contacted with the inner wall surface of the thread sleeve, two sealing rings with the same structure and the opposite directions are arranged in the first round pipe.
Preferably, the cross section of the sealing ring is of a C-shaped structure, and two ends of the sealing ring are of a pointed structure.
Preferably, a pair of retaining rings is fixedly connected to the inner wall surface of the first circular tube and located on one side of the two sealing rings, and one end of each of the pair of sealing rings is in contact with one side wall of each of the pair of retaining rings.
Preferably, two inclined surfaces are arranged on the inner wall surface of the first circular tube and between the pair of retaining rings and the pair of side vertical edges, the upper wall surface of the pair of sealing rings is in contact with the two inclined surfaces, and the lower wall surfaces of the pair of sealing rings are in contact with the outer wall surface of the first steel tube and the outer wall surface of the second steel tube respectively.
Preferably, the section of the insert block is of a fan-shaped structure.
Preferably, the sealing ring is made of rubber.
Advantageous effects
The utility model provides a high-pressure-resistant seamless steel pipe which has the following beneficial effects that when in use, a first steel pipe and a second steel pipe are inserted into two ends of a connecting sleeve, an insert block is inserted into a through hole and inserted into a positioning groove, a threaded sleeve is screwed into the threaded groove, the insert block can be prevented from going out by screwing the threaded sleeve into the upper part of the insert block, so that the first steel pipe and the second steel pipe can be communicated through the connecting sleeve, a pair of sealing rings can be tightly attached to the inner wall surface of the connecting sleeve and the outer wall surfaces of the first steel pipe and the second steel pipe through water pressure when the water pressure in a pipeline is high, and the sealing rings with C-shaped sections can be expanded outwards under the action of the pressure, so that the effect that the sealing effect of the sealing rings is stronger when the pressure is higher is achieved.
Drawings
Fig. 1 is a schematic view of the internal structure of the present invention.
Fig. 2 is a cross-sectional view a-a of fig. 1.
In the figure: 1-a first steel tube; 2-a second steel pipe; 3-connecting sleeves; 31-a first round tube; 32-standing; 33-a second round tube; 34-thread groove; 35-a through hole; 4-thread bushing; 5-inserting blocks; 6-sealing ring; 7-a baffle ring; 8-positioning groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: a high pressure resistant seamless steel pipe comprises a first steel pipe 1 and a second steel pipe 2, wherein a connecting sleeve 3 is sleeved at the outer side of the joint of the first steel pipe 1 and the second steel pipe 2, the cross section of the side wall of the connecting sleeve 3 is of a structure with several shapes, each structure with several shapes comprises a first round pipe 31, two side vertical edges 32 and two second round pipes 33, the diameter of the first round pipe 31 is larger than that of the second round pipes 33, the first round pipe 31 and the two second round pipes 33 are connected through the two side vertical edges 32, a thread groove 34 is formed in the outer wall surface of one end of each second round pipe 33, a thread sleeve 4 is screwed on each thread groove 34, two second round pipes 33 are positioned on one side of each thread groove 34 and are provided with a plurality of through holes 35, a plurality of inserting blocks 5 are inserted in the through holes 35, positioning grooves 8 are formed in the first steel pipe 1 and the second steel pipe 2, one end of the insertion block 5 is inserted into the positioning groove 8, the other end of the insertion block 5 is in contact with the inner wall surface of the threaded sleeve 4, and two sealing rings 6 with the same structure and the opposite directions are mounted in the first circular tube 31; the section of the sealing ring 6 is of a C-shaped structure, and two ends of the sealing ring 6 are of pointed structures; a pair of retaining rings 7 are fixedly connected to the inner wall surface of the first circular tube 31 and located at two positions on one side of the sealing rings 6, and one ends of the pair of sealing rings 6 are in contact with one side wall of the pair of retaining rings 7; two inclined surfaces are arranged on the inner wall surface of the first circular tube 31 and between the pair of baffle rings 7 and the pair of side vertical edges 32, the upper wall surfaces of the pair of sealing rings 6 are in contact with the two inclined surfaces, and the lower wall surfaces of the pair of sealing rings 6 are in contact with the outer wall surface of the first steel tube 1 and the outer wall surface of the second steel tube 2 respectively; the section of the insert block 5 is of a fan-shaped structure; the sealing ring 6 is made of rubber.
Example (b): as can be seen from fig. 1-2 of the specification, when in use, the connection sleeve 3 is inserted into one end of the first steel pipe 1, the through hole 35 is aligned with the positioning groove 8 on the first steel pipe 1, the insertion block 5 is inserted into the through hole 35 and inserted into the positioning groove 8, the thread bush 4 is screwed into the thread groove 34, the insertion block 35 can be prevented from going out by screwing the thread bush 4 above the insertion block 35, the second steel pipe 2 is inserted into the other end of the connection sleeve 3 and the above steps are repeated, the second steel pipe 2 can be connected with the connection sleeve 3, when the water pressure in the pipeline is high, the pair of sealing rings 6 can be tightly attached to the inner wall surface of the connection sleeve 3 and the outer wall surfaces of the first steel pipe 1 and the second steel pipe 2 through the water pressure, the sealing rings 6 with the C-shaped cross sections can be expanded outwards under the effect of increasing the pressure and the sealing effect of the sealing rings 6 is stronger.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.
Claims (6)
1. The high-pressure-resistant seamless steel pipe comprises a first steel pipe (1) and a second steel pipe (2), and is characterized in that a connecting sleeve (3) is sleeved outside the joint of the first steel pipe (1) and the second steel pipe (2), the cross section of the side wall of the connecting sleeve (3) is of a multi-type structure, the multi-type structure comprises a first round pipe (31), two side vertical edges (32) and two second round pipes (33), the diameter of the first round pipe (31) is larger than that of the two second round pipes (33), the first round pipe (31) is connected with the two second round pipes (33) through the two side vertical edges (32), the outer wall surface of one end of each second round pipe (33) is provided with a thread groove (34), a thread sleeve (4) is screwed on the thread groove (34), the two second round pipes (33) are provided with a plurality of through holes (35) on one side of the thread groove (34), a plurality of equal cartridge has inserted block (5) in through-hole (35), constant head tank (8) have all been seted up on first steel pipe (1) and second steel pipe (2), inserted block (5) one end cartridge in constant head tank (8), the inserted block (5) other end with thread bush (4) internal face contacts, install two sealing washer (6) that the same direction of structure is opposite in first pipe (31).
2. The high-pressure-resistant seamless steel pipe according to claim 1, wherein the cross section of the sealing ring (6) is of a C-shaped structure, and two ends of the sealing ring (6) are of a pointed structure.
3. The high-pressure-resistant seamless steel tube according to claim 1, wherein a pair of retaining rings (7) are fixedly connected to the inner wall surface of the first circular tube (31) and located at one side of the two sealing rings (6), and one end of each of the pair of sealing rings (6) is in contact with one side wall of each of the pair of retaining rings (7).
4. The high-pressure-resistant seamless steel tube according to claim 3, wherein two inclined surfaces are arranged on the inner wall surface of the first circular tube (31) and between the pair of baffle rings (7) and the pair of side vertical edges (32), the upper wall surfaces of the pair of sealing rings (6) are in contact with the two inclined surfaces, and the lower wall surfaces of the pair of sealing rings (6) are in contact with the outer wall surface of the first steel tube (1) and the outer wall surface of the second steel tube (2), respectively.
5. The high pressure resistant seamless steel tube according to claim 1, characterized in that the cross section of the insert block (5) is a sector structure.
6. The high pressure resistant seamless steel tube according to claim 1, characterized in that the sealing ring (6) is made of rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121733389.2U CN215674067U (en) | 2021-07-28 | 2021-07-28 | High pressure resistant seamless steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121733389.2U CN215674067U (en) | 2021-07-28 | 2021-07-28 | High pressure resistant seamless steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215674067U true CN215674067U (en) | 2022-01-28 |
Family
ID=79981990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121733389.2U Active CN215674067U (en) | 2021-07-28 | 2021-07-28 | High pressure resistant seamless steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215674067U (en) |
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2021
- 2021-07-28 CN CN202121733389.2U patent/CN215674067U/en active Active
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