Seamless stainless steel pipe capable of being sleeved and fixed

Abstract

The utility model relates to a seamless stainless steel pipe capable of being fixed in a sleeved mode, which comprises a main stainless steel pipe and an auxiliary stainless steel pipe, and the auxiliary stainless steel pipe is connected to the main stainless steel pipe through a sleeved connection structure. The sleeving structure comprises an extension sleeve extending and fixed to the end of the main stainless steel pipe, a fixing block movably arranged on the auxiliary stainless steel pipe and a positioning screw movably connected to the extension sleeve, the fixing block is inserted into the extension sleeve, and the positioning screw is inserted and positioned in the fixing block. The extension sleeve is arranged to provide space for connection of the auxiliary stainless steel pipe and the main stainless steel pipe; the movable fixing blocks are inserted and further positioned in the extension sleeves through the positioning screws, so that the main stainless steel pipe and the auxiliary stainless steel pipe are connected and fixed, welding equipment is not needed, and splicing operation of the stainless steel pipes is more convenient.

Description

Technical Field

[0001] The present application relates to the technical field of stainless steel pipes, and in particular to a seamless stainless steel pipe that can be sleeved and fixed. Background Art

[0002] Currently, in the process of conveying fluids, multiple seamless stainless steel pipes are often needed for splicing because the length of the seamless stainless steel pipe is not enough. Generally, seamless stainless steel pipes are spliced together by welding.

[0003] Regarding the above-mentioned related technologies, the applicant believes that the use of welding for splicing requires the use of welding equipment, which is not convenient enough in practical applications and therefore still needs to be improved. Utility Model Content

[0004] In order to make the splicing operation of stainless steel pipes more convenient, the present application provides a seamless stainless steel pipe that can be sleeved and fixed.

[0005] The present application provides a seamless stainless steel pipe that can be sleeved and fixed, which adopts the following technical solution:

[0006] A seamless stainless steel pipe that can be sleeved and fixed comprises a main stainless steel pipe and a secondary stainless steel pipe. The secondary stainless steel pipe is connected to the main stainless steel pipe via a sleeve structure. The sleeve structure comprises an extension sleeve extended and fixed to the end of the main stainless steel pipe, a fixed block movably arranged on the secondary stainless steel pipe, and a positioning screw movably connected to the extension sleeve. The fixed block is inserted into the extension sleeve, and the positioning screw is inserted and positioned in the fixed block.

[0007] By adopting the above technical solution, the extension sleeve provides space for the connection between the auxiliary stainless steel pipe and the main stainless steel pipe; the movable fixing block is inserted and further positioned on the extension sleeve by the positioning screw to achieve the connection and fixation of the main stainless steel pipe and the auxiliary stainless steel pipe, thereby eliminating the need for welding equipment and making the splicing operation of the stainless steel pipe more convenient.

[0008] Preferably, the fixing blocks are relatively arranged on both sides of the auxiliary stainless steel pipe, the positioning screw is threadedly connected to the extension sleeve, and one end of the positioning screw is passed through the outside of the extension sleeve, and a plug-in block is fixed to one end of the fixing block, the plug-in block is inserted into the extension sleeve, and a fixing hole for the positioning screw to be plugged in is opened on the plug-in block; when the fixing block is inserted into the extension sleeve, the positioning screw rotates and is inserted into the fixing hole.

[0009] By adopting the above technical solution, arranging the plug-in block on the fixed block makes it easier to cooperate with the positioning screw. The positioning screw threadedly connected to the extension sleeve realizes a stable connection on the extension sleeve. The positioning screw is positioned in the fixing hole, and the plug-in block is positioned in the extension sleeve, thereby conveniently realizing the splicing of the main stainless steel pipe and the auxiliary stainless steel pipe.

[0010] Preferably, a control block is fixed to the other end of the fixing block opposite to the plug-in block, the control block is located outside the extension sleeve, and a clearance groove matching the shape of the positioning screw is opened on the control block.

[0011] By adopting the above technical solution, the control block is used to drive the movement of the fixed block from the outside, and the clearance groove provides clearance space for screwing in the positioning screw.

[0012] Preferably, the socket structure also includes connecting rods fixed on the main stainless steel tube and the auxiliary stainless steel tube respectively, the connecting rods of the main stainless steel tube are arranged at equal intervals on the end side walls of the main stainless steel tube, and the connecting rods of the auxiliary stainless steel tube are arranged at equal intervals on the end side walls of the auxiliary stainless steel tube, and the connecting rods of the main stainless steel tube and the auxiliary stainless steel tube are staggered with each other, and the connecting rods are staggered with the fixed blocks; the connecting rods are respectively inserted and positioned in the end side walls of the corresponding main stainless steel tube and auxiliary stainless steel tube.

[0013] By adopting the above technical solution, the connecting rod realizes the mutual insertion of the main stainless steel pipe and the auxiliary stainless steel pipe. Only by exerting reverse force on the main stainless steel pipe and the auxiliary stainless steel pipe at the same time can the two be separated, and the connection is stronger.

[0014] Preferably, deformable protrusions are fixed on the side walls of the connecting rods.

[0015] By adopting the above technical solution, interference fit is achieved by setting the deformable protrusions, so that the connecting rods are more stable when inserted into the corresponding auxiliary stainless steel pipes and main stainless steel pipes and will not fall out easily.

[0016] Preferably, a sealing ring is extended and fixed on the side wall of the end of the auxiliary stainless steel tube, and a receiving groove for receiving the sealing ring is opened on the inner wall of the extended sleeve.

[0017] By adopting the above technical solution, the sealing performance is enhanced by accommodating and installing the sealing ring on the inner wall of the extension sleeve, thereby improving the connection sealing effect of the main stainless steel pipe and the auxiliary stainless steel pipe.

[0018] In summary, this application includes at least one of the following beneficial technical effects:

[0019] The extension sleeve provides space for connecting the auxiliary stainless steel pipe with the main stainless steel pipe. The movable fixing block is inserted and further positioned in the extension sleeve by the positioning screw to achieve the connection and fixation of the main stainless steel pipe and the auxiliary stainless steel pipe, thereby eliminating the need for welding equipment and making the splicing operation of the stainless steel pipes more convenient.

[0020] Arranging a plug-in block on the fixing block makes it easier to cooperate with the positioning screw. The positioning screw threadedly connected to the extension sleeve realizes a stable connection on the extension sleeve. The positioning screw is positioned in the fixing hole, and the plug-in block is positioned in the extension sleeve, thereby conveniently realizing the splicing of the main stainless steel pipe and the auxiliary stainless steel pipe; the control block is used to drive the movement of the fixing block from the outside, and the clearance groove provides clearance space for screwing in the positioning screw;

[0021] The connecting rod realizes the mutual insertion of the main stainless steel pipe and the auxiliary stainless steel pipe. The setting of the deformable convex point realizes interference fit, which makes the connecting rod more stable when inserted into the corresponding auxiliary stainless steel pipe and main stainless steel pipe respectively. Only by exerting force in the opposite direction on the main stainless steel pipe and the auxiliary stainless steel pipe at the same time can the two be separated, and the connection is more secure.

[0022] The sealing performance is enhanced by accommodating and installing the sealing ring on the inner wall of the extension sleeve, thereby improving the connection sealing effect of the main stainless steel pipe and the auxiliary stainless steel pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a partial cross-sectional structural diagram of the connection between the plug-in block and the positioning screw in an embodiment of the present application;

[0024] Figure 2 It is a schematic partial cross-sectional view showing the connecting rod and the protrusion of the auxiliary stainless steel tube of the embodiment of the present application being inserted into the main stainless steel tube.

[0025] Explanation of the accompanying symbols: 1. Main stainless steel tube; 2. Auxiliary stainless steel tube; 21. Sealing ring; 3. Socket structure; 31. Extension sleeve; 311. Accommodation groove; 32. Connecting rod; 321. Bump; 33. Fixing block; 34. Positioning screw; 4. Plug-in block; 41. Fixing hole; 5. Control block; 51. Give way groove. DETAILED DESCRIPTION

[0026] The present application is further described in detail below with reference to the accompanying drawings.

[0027] The present application discloses a seamless stainless steel pipe that can be sleeved and fixed. Figure 1 , including a main stainless steel pipe 1 and a secondary stainless steel pipe 2. The secondary stainless steel pipe 2 is connected to the main stainless steel pipe 1 through a sleeve structure 3, so there is no need to use welding equipment, making the splicing operation of the stainless steel pipe more convenient.

[0028] Reference Figure 1The sleeve structure 3 includes an extension sleeve 31 extending and fixed to the end of the main stainless steel pipe 1, and the extension sleeve 31 extends toward the auxiliary stainless steel pipe 2; a sealing ring 21 is fixed on the side wall of the end of the auxiliary stainless steel pipe 2 toward the main stainless steel pipe 1, and a accommodating groove 311 for accommodating the sealing ring 21 is opened on the inner wall of the extension sleeve 31, thereby enhancing the sealing performance and improving the connection sealing effect of the main stainless steel pipe 1 and the auxiliary stainless steel pipe 2.

[0029] Reference Figure 1 、 2 The sleeve structure 3 also includes connecting rods 32 fixed on the main stainless steel pipe 1 and the auxiliary stainless steel pipe 2 respectively. The connecting rods 32 of the main stainless steel pipe 1 are arranged at equal intervals at the upper and lower ends of the end side wall of the main stainless steel pipe 1, and the connecting rods 32 of the auxiliary stainless steel pipe 2 are arranged at equal intervals at the upper and lower ends of the end side wall of the auxiliary stainless steel pipe 2. The connecting rods 32 of the main stainless steel pipe 1 and the auxiliary stainless steel pipe 2 are staggered with each other, and the connecting rods 32 of the main stainless steel pipe 1 and the auxiliary stainless steel pipe 2 are respectively inserted in reverse and positioned in the corresponding auxiliary stainless steel pipe 2 and the end side wall of the main stainless steel pipe 1.

[0030] Reference Figure 2 The side walls of the connecting rod 32 are fixed with deformable protrusions 321. The setting of the deformable protrusions 321 realizes interference fit, so that the connecting rod 32 is more stable when inserted into the corresponding auxiliary stainless steel tube 2 and the main stainless steel tube 1, and will not fall out easily.

[0031] Reference Figure 1 、 2 The sleeve structure 3 also includes a fixed block 33 movably arranged on the auxiliary stainless steel pipe 2 and a positioning screw 34 threadedly connected to the outside of the extension sleeve 31. The fixed block 33 is located at the end of the sealing ring 21 away from the main stainless steel pipe 1, and the fixed blocks 33 are relatively arranged on both sides of the horizontal direction of the auxiliary stainless steel pipe 2. The positioning screw 34 is passed through the extension sleeve 31. A plug-in block 4 is fixed at one end of the fixed block 33. The plug-in block 4 is inserted into the extension sleeve 31, and a fixing hole 41 is opened on the plug-in block 4. The positioning screw 34 can be screwed into the extension sleeve 31 and inserted into the fixing hole 41.

[0032] Reference Figure 1 、 2 A control block 5 is fixed to the other end of the fixed block 33 opposite to the plug-in block 4. The control block 5 is located on the outside of the extension sleeve 31, and a clearance groove 51 is provided on the control block 5 that matches the shape of the positioning screw 34. The control block 5 is used to drive the movement of the fixed block 33 from the outside, and the clearance groove 51 provides clearance space for screwing in the positioning screw 34.

[0033] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A seamless stainless steel pipe that can be sleeved and fixed, characterized by: The invention comprises a main stainless steel pipe (1) and a secondary stainless steel pipe (2), wherein the secondary stainless steel pipe (2) is connected to the main stainless steel pipe (1) via a sleeve structure (3), wherein the sleeve structure (3) comprises an extension sleeve (31) extending and fixed to the end of the main stainless steel pipe (1), a fixing block (33) movably arranged on the secondary stainless steel pipe (2), and a positioning screw (34) movably connected to the extension sleeve (31), wherein the fixing block (33) is inserted into the extension sleeve (31), and the positioning screw (34) is inserted and positioned in the fixing block (33).

2. The seamless stainless steel pipe that can be sleeved and fixed according to claim 1, characterized in that: The fixing blocks (33) are relatively arranged on both sides of the auxiliary stainless steel pipe (2); the positioning screw (34) is threadedly connected to the extension sleeve (31), and one end of the positioning screw (34) is passed through the outside of the extension sleeve (31); a plug-in block (4) is fixed to one end of the fixing block (33); the plug-in block (4) is inserted into the extension sleeve (31), and a fixing hole (41) for the positioning screw (34) to be plugged in is opened on the plug-in block (4); when the fixing block (33) is inserted into the extension sleeve (31), the positioning screw (34) rotates and is inserted into the fixing hole (41).

3. The seamless stainless steel pipe that can be sleeved and fixed according to claim 2, characterized in that: A control block (5) is fixed to the other end of the fixed block (33) opposite to the plug-in block (4). The control block (5) is located outside the extension sleeve (31), and a clearance groove (51) matching the shape of the positioning screw (34) is provided on the control block (5).

4. The seamless stainless steel pipe that can be sleeved and fixed according to claim 1, characterized in that: The sleeve structure (3) further comprises connecting rods (32) respectively fixed on the main stainless steel pipe (1) and the auxiliary stainless steel pipe (2); the connecting rods (32) of the main stainless steel pipe (1) are arranged at equal intervals on the end side wall of the main stainless steel pipe (1); the connecting rods (32) of the auxiliary stainless steel pipe (2) are arranged at equal intervals on the end side wall of the auxiliary stainless steel pipe (2); the connecting rods (32) of the main stainless steel pipe (1) and the auxiliary stainless steel pipe (2) are staggered with each other, and the connecting rods (32) and the fixing blocks (33) are staggered; the connecting rods (32) are respectively inserted into and positioned in the end side walls of the corresponding main stainless steel pipe (1) and auxiliary stainless steel pipe (2).

5. The seamless stainless steel pipe that can be sleeved and fixed according to claim 4, characterized in that: Deformable protrusions (321) are fixed on the side walls of the connecting rods (32).

6. The seamless stainless steel pipe that can be sleeved and fixed according to claim 1, characterized in that: A sealing ring (21) is extended and fixed on the side wall of the end of the auxiliary stainless steel tube (2), and a receiving groove (311) for receiving the sealing ring (21) is provided on the inner wall of the extended sleeve (31).

Images