Seamless stainless steel pipe capable of being sleeved and fixed

Abstract

The utility model relates to a seamless stainless steel pipe capable of being sleeved and fixed, which comprises a main seamless steel pipe and an auxiliary seamless steel pipe, the connecting structure comprises a connecting sleeve formed on the main seamless steel pipe in an extending mode, a matched sleeve formed on the auxiliary seamless steel pipe in an extending mode and a connecting piece movably connected into the connecting sleeve, a fixing block inserted and positioned in the connecting sleeve is formed on the matched sleeve in an extending mode, and the connecting piece is inserted and locked to the fixing block. According to the seamless stainless steel pipe, a connecting space is provided for the main seamless steel pipe and the auxiliary seamless steel pipe through the connecting sleeve and the matching sleeve, the fixing block is firstly inserted into the connecting sleeve, and the inserted fixing block is further inserted and locked through the connecting piece, so that splicing extension of the seamless stainless steel pipe can be more conveniently realized without using additional welding equipment; the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of stainless steel pipes, in particular to a seamless stainless steel pipe capable of being fixed by sleeving. BACKGROUND

[0002] The seamless stainless steel pipe is a hollow long strip circular steel material, also known as a seamless pipe, which is widely used in petroleum, chemical industry, medical treatment, food, light industry and mechanical instrument industry, and is used for conveying pipes and mechanical structure parts.

[0003] In the process of conveying fluid, a plurality of seamless stainless steel pipes need to be connected due to the insufficient length of the seamless stainless steel pipe, and the general seamless stainless steel pipe connection is connected by welding.

[0004] According to the related art, the applicant believes that the welding method is used to lengthen the seamless stainless steel pipe, additional welding equipment is needed, the operation is relatively complicated, the work efficiency is reduced, and there is still room for improvement. CONTENT OF THE UTILITY MODEL

[0005] In order to more conveniently realize the connection and lengthening of the seamless stainless steel pipe, without using additional welding equipment, the work efficiency is improved, the application provides a seamless stainless steel pipe capable of being fixed by sleeving.

[0006] The application provides a seamless stainless steel pipe capable of being fixed by sleeving, which adopts the following technical scheme:

[0007] The seamless stainless steel pipe capable of being fixed by sleeving comprises a main seamless steel pipe and a secondary seamless steel pipe, the secondary seamless steel pipe is connected to the main seamless steel pipe through a connecting structure, the connecting structure comprises a connecting sleeve pipe extended on the main seamless steel pipe, a matching sleeve pipe extended on the secondary seamless steel pipe and a connecting piece movably connected in the connecting sleeve pipe, a fixing block inserted into the connecting sleeve pipe is extended on the matching sleeve pipe, and the connecting piece is inserted and locked with the fixing block.

[0008] By adopting the above technical scheme, the connecting sleeve pipe and the matching sleeve pipe provide a connecting space for the main seamless steel pipe and the secondary seamless steel pipe, the fixing block is first inserted into the connecting sleeve pipe, and then the inserted fixing block is inserted and locked by the connecting piece, so that the connection and lengthening of the seamless stainless steel pipe can be more conveniently realized, additional welding equipment is not needed, and the work efficiency is improved.

[0009] Preferably, the connecting piece is an arc-shaped positioning plate symmetrically arranged on the connecting sleeve pipe and matched with the connecting sleeve pipe in shape, a positioning groove for the arc-shaped positioning plate is formed on the fixing block, and the end portions of the opposite arc-shaped positioning plates are connected through a locking structure.

[0010] By adopting the technical scheme, the arc-shaped positioning plate is inserted into the positioning groove of the fixing block to lock the fixing block, and then the opposite arc-shaped positioning plates are fixed by the locking structure to realize self-locking, thereby improving the splicing stability of the main seamless steel pipe and the auxiliary seamless steel pipe.

[0011] Preferably, the locking structure comprises a locking magnetic block fixed to the end of one arc-shaped positioning plate and a matching magnetic block fixed to the end of the other arc-shaped positioning plate; the arc-shaped positioning plates are inserted into the corresponding positioning grooves, and the locking magnetic block and the matching magnetic block are magnetically attracted and fixed.

[0012] By adopting the technical scheme, the opposite arc-shaped positioning plates are inserted into the positioning grooves of the fixing block and then magnetically attracted and fixed by the locking magnetic block and the matching magnetic block, thereby completing the splicing and fixing of the main seamless steel pipe and the auxiliary seamless steel pipe.

[0013] Preferably, the opposite side walls of the positioning groove are formed into spaced teeth.

[0014] By adopting the technical scheme, the side walls of the positioning groove are formed into spaced teeth, thereby increasing the friction after the arc-shaped positioning plate is inserted and assisting in improving the insertion stability.

[0015] Preferably, the connecting sleeve is provided with a movable groove for the arc-shaped positioning plate, and the arc-shaped positioning plate is connected to the movable groove by a movable spring.

[0016] By adopting the technical scheme, the movable spring makes the arc-shaped positioning plate elastically movable on the connecting sleeve, thereby avoiding hindering the insertion of the fixing block.

[0017] Preferably, the connecting structure further comprises a sealing ring arranged on the matching sleeve, and the inner wall of the connecting sleeve is provided with a mounting groove for positioning the sealing ring.

[0018] By adopting the technical scheme, the sealing ring is arranged to maintain the sealing property after the main seamless steel pipe and the auxiliary seamless steel pipe are connected, thereby avoiding leakage.

[0019] In summary, the present application has at least one of the following beneficial technical effects:

[0020] The connecting sleeve and the matching sleeve provide a connecting space for the main seamless steel pipe and the auxiliary seamless steel pipe, the fixing block is first inserted into the connecting sleeve, and then the inserted fixing block is inserted and locked by the connecting piece, thereby more conveniently realizing the splicing and extension of the seamless stainless steel pipe without using additional welding equipment, and improving the work efficiency.

[0021] The arc-shaped positioning plate is inserted into the positioning groove of the fixing block to lock the fixing block, and then the opposite arc-shaped positioning plates are fixed by the locking structure to realize self-locking, thereby improving the splicing stability of the main seamless steel pipe and the auxiliary seamless steel pipe.

[0022] The opposite arc-shaped positioning plates are inserted into the positioning grooves of the fixing blocks, and are fixed by the locking magnetic blocks and the matched magnetic blocks, so that the main seamless steel pipe and the auxiliary seamless steel pipe are spliced and fixed. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a structural schematic diagram of an embodiment of the present application;

[0024] Figure 2 is a partial exploded structural schematic diagram of the connection of the connecting sleeve and the matched sleeve of an embodiment of the present application;

[0025] Figure 3 is a partial sectional structural schematic diagram of the arc-shaped positioning plate of an embodiment of the present application installed in the connecting sleeve;

[0026] Figure 4 is a partial sectional structural schematic diagram of the arc-shaped positioning plate of an embodiment of the present application matched with the fixing block.

[0027] BRIEF DESCRIPTION OF DRAWINGS 1, main seamless steel pipe; 2, auxiliary seamless steel pipe; 3, connecting structure; 31, connecting sleeve; 311, movable groove; 32, matched sleeve; 33, sealing ring; 34, connecting piece; 341, arc-shaped positioning plate; 342, movable spring; 4, fixing block; 41, positioning groove; 5, locking structure; 51, locking magnetic block; 52, matched magnetic block. DETAILED DESCRIPTION

[0028] The present application will be further described in detail below with reference to the accompanying drawings.

[0029] The present application discloses a sleeve-connectable fixed seamless stainless steel pipe, referring to Figure 1 , comprising a main seamless steel pipe 1 and an auxiliary seamless steel pipe 2, the auxiliary seamless steel pipe 2 being connected to the main seamless steel pipe 1 through a connecting structure 3.

[0030] Referring to Figure 1 , 2 , the connecting structure 3 comprises a connecting sleeve 31 extended on the main seamless steel pipe 1 and a matched sleeve 32 extended on the auxiliary seamless steel pipe 2, and the connecting sleeve 31 and the matched sleeve 32 are connected to each other to realize the connection of the main seamless steel pipe 1 and the auxiliary seamless steel pipe 2.

[0031] Referring to Figure 1 , 2 , the connecting structure 3 further comprises a sealing ring 33 arranged on the matched sleeve 32, and an installation groove for positioning the sealing ring 33 is arranged on the inner wall of the connecting sleeve 31; the sealing ring 33 is arranged to maintain the sealing property of the main seamless steel pipe 1 and the auxiliary seamless steel pipe 2 after being connected, so as to avoid leakage.

[0032] Referring to Figure 2 , 3The connecting structure 3 further comprises a connecting piece 34 movably connected to the connecting sleeve 31 and inserted and locked with the fixed block 4.

[0033] Referring to Figure 3 , 4 The connecting piece 34 is an arc-shaped positioning plate 341 symmetrically arranged on the connecting sleeve 31 and matched with the connecting sleeve 31. The connecting sleeve 31 is provided with a movable slot 311 for the arc-shaped positioning plate 341. The arc-shaped positioning plate 341 is connected to the movable slot 311 through a movable spring 342, so that the arc-shaped positioning plate 341 is elastically movable on the connecting sleeve 31, thereby avoiding hindering the insertion of the fixed block 4.

[0034] Referring to Figure 2 , 4 The fixed block 4 is provided with a positioning slot 41 for the arc-shaped positioning plate 341. The opposite side walls of the positioning slot 41 are formed with spaced teeth. The spaced teeth can increase the friction after the insertion of the arc-shaped positioning plate 341, thereby assisting in improving the insertion stability.

[0035] Referring to Figure 2 , 3 The end portions of the opposite arc-shaped positioning plates 341 are connected through a locking structure 5. The arc-shaped positioning plate 341 is inserted into the positioning slot 41 of the fixed block 4 to lock the fixed block 4. The opposite arc-shaped positioning plates 341 are fixed through the locking structure 5 to achieve self-locking, thereby improving the splicing stability of the main seamless steel pipe 1 and the auxiliary seamless steel pipe 2.

[0036] Referring to Figure 2 , 3 The locking structure 5 comprises a locking magnetic block 51 fixed to the end portions of one arc-shaped positioning plate 341 and a matching magnetic block 52 fixed to the end portions of the other arc-shaped positioning plate 341. After the arc-shaped positioning plate 341 is inserted into the corresponding positioning slot 41, the locking magnetic block 51 and the matching magnetic block 52 are magnetically attracted and fixed, thereby completing the splicing and fixing of the main seamless steel pipe 1 and the auxiliary seamless steel pipe 2.

[0037] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application. Therefore, any equivalent changes made on the basis of the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A socketable fixed seamless stainless steel pipe, characterized by: The application relates to a main seamless steel pipe (1) and a secondary seamless steel pipe (2), the secondary seamless steel pipe (2) is connected to the main seamless steel pipe (1) through a connecting structure (3), the connecting structure (3) comprises a connecting sleeve (31) extended on the main seamless steel pipe (1), a matched sleeve (32) extended on the secondary seamless steel pipe (2) and a connecting piece (34) movably connected in the connecting sleeve (31), the matched sleeve (32) is extended with a fixing block (4) inserted and positioned in the connecting sleeve (31), and the connecting piece (34) is inserted and locked with the fixing block (4).

2. The spigot and socket jointed seamless stainless steel pipe as claimed in claim 1, wherein: The connecting piece (34) is an arc-shaped positioning plate (341) symmetrically arranged on the connecting sleeve (31) and matched with the connecting sleeve (31) in shape, the fixing block (4) is provided with a positioning groove (41) for inserting the arc-shaped positioning plate (341), and the end portions of the opposite arc-shaped positioning plates (341) are connected through a locking structure (5).

3. The spigot and socket jointed seamless stainless steel pipe as claimed in claim 2, wherein: The locking structure (5) comprises a locking magnetic block (51) fixed to the end portion of one arc-shaped positioning plate (341) and a matched magnetic block (52) fixed to the end portion of the other arc-shaped positioning plate (341), the arc-shaped positioning plate (341) is inserted into the corresponding positioning groove (41), and the locking magnetic block (51) and the matched magnetic block (52) are magnetically attracted and fixed.

4. The spigot and socket jointed seamless stainless steel pipe as claimed in claim 2, wherein: The opposite side walls of the positioning groove (41) are formed with spaced teeth.

5. The spigot and socket jointed seamless stainless steel pipe as claimed in claim 2, wherein: The connecting sleeve (31) is provided with a movable groove (311) for the arc-shaped positioning plate (341) to move, and the arc-shaped positioning plate (341) is connected to the movable groove (311) through a movable spring (342).

6. The spigot and socket jointed seamless stainless steel pipe as claimed in claim 1, wherein: The connecting structure (3) further comprises a sealing ring (33) arranged on the matched sleeve (32), and the inner wall of the connecting sleeve (31) is provided with an installation groove for positioning the sealing ring (33).

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