Stainless steel pipe inner connection structure

Abstract

The utility model provides a stainless steel pipe internal connection structure, belongs to the technical field of stainless steel pipes, and solves the problems that a cylinder is sleeved between two stainless steel pipes, so that the stainless steel pipes cannot be communicated, and the cylinder is easy to lose when being disassembled and stored. The stainless steel pipe inner connection structure comprises a first stainless steel pipe and a second stainless steel pipe, an annular groove is formed in the first stainless steel pipe, a protruding ring is fixed to the second stainless steel pipe, the annular groove and the protruding ring are in threaded connection, the annular groove and the protruding ring are each provided with two round openings, and two fixing columns inserted into the round openings are connected into the first stainless steel pipe in a sliding mode. The utility model has the advantages that the interiors of the two stainless steel pipes are communicated, and the two stainless steel pipes can be connected without other accessories.

Description

Technical Field

[0001] The utility model belongs to the technical field of stainless steel pipes and relates to an internal connection structure, in particular to a stainless steel pipe internal connection structure. Background Art

[0002] Stainless steel pipe is a hollow long round steel, which is widely used in industrial pipelines such as petroleum, chemical, medical, food, light industry, mechanical instrumentation, and mechanical structural parts. In addition, when the bending and torsional strength are the same, the weight is lighter, so it is also widely used in the manufacture of mechanical parts and engineering structures.

[0003] After searching, it is found that a stainless steel tube internal connection structure is disclosed in Chinese patent literature [Application number: 202221179789.8; Publication number: CN 217272589 U]. In this stainless steel tube internal connection structure, an intermediate cylinder is arranged between the two stainless steel tubes, and two end cylinders are symmetrically fixed at both ends of the intermediate cylinder. Three locking claws arranged in a circle are slidably inserted at one end of the two end cylinders, and the insides of the two end cylinders are rotatably connected with screw rods, and one end of the two screw rods is fixed with a driven bevel gear located inside the intermediate cylinder. In the utility model, the active bevel gear drives the driven bevel gear to rotate, thereby driving the screw rod to rotate, and the screw rod drives the screw rod slider to move through meshing, and the screw rod slider moves through the connecting rod locking claw, so that the locking claw is inserted into the locking groove, so that the two stainless steel tubes can be fixed to the two ends of the intermediate cylinder. The operation steps are simple, the connection and installation efficiency is improved, and the fixing reliability is high, it is not easy to loosen, and the stainless steel tubes are prevented from falling off after long-term use.

[0004] The locking claw disclosed in the patent can fix the two stainless steel tubes at the two ends of the middle cylinder by inserting the locking claw into the locking groove, and the operation steps are simple, which improves the connection and installation efficiency, and the fixing reliability is high and not easy to loosen, preventing the stainless steel tubes from falling off after long-term use. However, the cylinder is set between the two stainless steel tubes, so that the stainless steel tubes cannot be connected, and the cylinder is easy to be lost when disassembled and stored. Utility Model Content

[0005] The purpose of the utility model is to solve the above problems in the existing technology and propose a stainless steel pipe internal connection structure. The technical problem to be solved by the utility model is: how to make two stainless steel pipes internally connected without the need for connection through other accessories.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A stainless steel pipe internal connection structure comprises a stainless steel pipe 1 and a stainless steel pipe 2, wherein the stainless steel pipe 1 is provided with an annular groove, the stainless steel pipe 2 is fixed with a convex ring, the annular groove and the convex ring are threadedly connected, the annular groove and the convex ring are provided with two circular openings, and the stainless steel pipe 1 is slidably connected with two fixing columns inserted into the circular openings.

[0008] The working principle of the utility model is: the convex ring on the stainless steel pipe 2 is aligned with the ring groove of the stainless steel pipe 1 and rotated to connect, and the two fixing columns are moved so that the two fixing columns are inserted into the circular opening to fix the connection between the stainless steel pipe 1 and the stainless steel pipe 2, thereby preventing the threaded connection from loosening, and there is no need to use other accessories to connect the two stainless steel pipes.

[0009] Two installation bars are fixed inside the stainless steel pipe one, and a bidirectional threaded rod is rotatably connected to the installation bar. The bidirectional threaded rod is threadedly connected to a fixing column, and a driving mechanism is arranged between the bidirectional threaded rod and the stainless steel pipe one.

[0010] By adopting the above structure, the bidirectional threaded rod is installed, and the bidirectional threaded rod is rotated by the driving mechanism. The two fixing columns on the bidirectional threaded rod move in corresponding directions until they are inserted into the circular mouth, thereby fixing the connection between stainless steel pipe one and stainless steel pipe two to prevent the threaded connection from loosening, and there is no need to use other accessories to connect the two stainless steel pipes.

[0011] The driving mechanism comprises a rotating column rotatably connected in a stainless steel pipe 1, a gear 1 is fixed on the rotating column, a gear 2 is fixed on the bidirectional threaded rod, and the gear 1 is meshingly connected with the gear 2.

[0012] By adopting the above structure, by installing gear one and gear two, and rotating the rotating column, gear one is driven to rotate, gear one drives gear two to rotate, and gear two drives the bidirectional threaded rod to rotate, thereby realizing the movement of the fixed column and facilitating the disassembly and installation of the two stainless steel pipes.

[0013] A sealing ring 1 is fixed in the annular groove, and a sealing ring 2 is fixed on the convex ring, and the sealing ring 1 is fitted with the sealing ring 2.

[0014] By adopting the above structure, sealing between the two steel pipes is achieved by installing the sealing ring 1 and the sealing ring 2.

[0015] A cylinder extending from a stainless steel tube is fixed on the rotating column, and a knob is fixed on the cylinder.

[0016] With the above structure, by installing the cylinder and turning the knob to drive the rotating column on the cylinder to rotate, the gear drives the bidirectional threaded rod to rotate, which has a simple structure and is easy to operate.

[0017] Compared with the prior art, the stainless steel tube internal connection structure has the following advantages:

[0018] 1. Align the convex ring on the stainless steel pipe 2 with the ring groove of the stainless steel pipe 1 and rotate it to connect. By moving the two fixing columns, the two fixing columns are inserted into the round mouth to fix the connection between the stainless steel pipe 1 and the stainless steel pipe 2 to prevent the threaded connection from loosening. There is no need to use other accessories to connect the two stainless steel pipes.

[0019] 2. By installing gear one and gear two, and rotating the rotating column, gear one is driven to rotate, gear one drives gear two to rotate, and gear two drives the bidirectional threaded rod to rotate, thereby realizing the movement of the fixed column and facilitating the disassembly and installation of the two stainless steel pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0021] Figure 2 It is a cross-sectional view of the utility model.

[0022] Figure 3 It is a cross-sectional view of the annular groove in the utility model.

[0023] In the figure, 1, stainless steel pipe one; 2, stainless steel pipe two; 3, ring groove; 4, convex ring; 5, round mouth; 6, fixing column; 7, mounting strip; 8, two-way threaded rod; 9, rotating column; 10, gear one; 11, gear two; 12, sealing ring one; 13, sealing ring two; 14, cylinder. DETAILED DESCRIPTION

[0024] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0025] like Figure 1-Figure 3 As shown, the stainless steel pipe internal connection structure includes a stainless steel pipe 1 and a stainless steel pipe 2. The stainless steel pipe 1 is provided with an annular groove 3, and the stainless steel pipe 2 is fixed with a convex ring 4. The annular groove 3 and the convex ring 4 are threadedly connected. The annular groove 3 and the convex ring 4 are provided with two circular openings 5. The stainless steel pipe 1 is slidably connected with two fixing columns 6 inserted into the circular openings.

[0026] The working principle of the utility model is: the convex ring 4 on the stainless steel pipe 2 is aligned with the annular groove 3 of the stainless steel pipe 1 and rotated to connect, and the two fixing columns 6 are moved to insert the two fixing columns 6 into the circular opening 5, so as to fix the connection between the stainless steel pipe 1 and the stainless steel pipe 2 to prevent the threaded connection from loosening, and there is no need to use other accessories to connect the two stainless steel pipes.

[0027] Two mounting bars 7 are fixed inside the stainless steel pipe 1 , and a bidirectional threaded rod 8 is rotatably connected to the mounting bar 7 . The bidirectional threaded rod 8 is threadedly connected to the fixing column 6 , and a driving mechanism is arranged between the bidirectional threaded rod 8 and the stainless steel pipe 1 .

[0028] By adopting the above structure, the bidirectional threaded rod 8 is installed, and the bidirectional threaded rod 8 is rotated by the driving mechanism. The two fixing columns 6 on the bidirectional threaded rod 8 move in corresponding directions until they are inserted into the circular opening 5, thereby fixing the connection between the stainless steel pipe 1 and the stainless steel pipe 2 2 to prevent the threaded connection from loosening, and there is no need to use other accessories to connect the two stainless steel pipes.

[0029] The driving mechanism includes a rotating column 9 rotatably connected in a stainless steel pipe 1, a gear 10 is fixed on the rotating column 9, a gear 2 11 is fixed on the bidirectional threaded rod 8, and the gear 10 is meshed and connected with the gear 2 11.

[0030] By adopting the above structure, by installing gear 10 and gear 2 11, by rotating the rotating column 9, gear 10 is driven to rotate, gear 10 drives gear 2 11 to rotate, gear 2 11 drives the bidirectional threaded rod 8 to rotate, thereby realizing the movement of the fixed column 6 and facilitating the disassembly and installation of the two stainless steel pipes.

[0031] A sealing ring 12 is fixed in the annular groove 3 , and a sealing ring 2 13 is fixed on the convex ring 4 . The sealing ring 12 fits with the sealing ring 2 13 .

[0032] By adopting the above structure, sealing between the two steel pipes is achieved by installing the sealing ring 12 and the sealing ring 2 13.

[0033] A cylinder 14 extending from a stainless steel sheet is fixed on the rotating column 9, and a knob is fixed on the cylinder 14.

[0034] With the above structure, by installing the cylinder 14, the rotating column 9 on the cylinder 14 is driven to rotate by turning the knob, so that the gear 10 drives the bidirectional threaded rod 8 to rotate, which has a simple structure and is easy to operate.

[0035] The working principle of the utility model is as follows: the convex ring 4 on the stainless steel pipe 2 is aligned with the annular groove 3 of the stainless steel pipe 1 and rotated to connect, and the two fixing columns 6 are moved so that the two fixing columns 6 are inserted into the circular opening 5, and the rotating column 9 on the cylinder 14 is driven to rotate by turning the knob, the gear 10 drives the gear 2 11 to rotate, and the gear 2 11 drives the bidirectional threaded rod 8 to rotate, and the two fixing columns 6 on the bidirectional threaded rod 8 move in corresponding directions until they are inserted into the circular opening 5.

[0036] In summary, the two stainless steel pipes are internally connected by the fixing column without the need for other accessories for connection.

[0037] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A stainless steel tube internal connection structure, comprising a stainless steel tube 1 (1) and a stainless steel tube 2 (2), characterized in that: The stainless steel pipe (1) is provided with an annular groove (3), the stainless steel pipe (2) is fixed with a convex ring (4), the annular groove (3) and the convex ring (4) are threadedly connected, the annular groove (3) and the convex ring (4) are both provided with two circular openings (5), and the stainless steel pipe (1) is slidably connected with two fixing columns (6) inserted into the circular openings.

2. A stainless steel tube internal connection structure according to claim 1, characterized in that: Two mounting bars (7) are fixed inside the stainless steel pipe (1), and a bidirectional threaded rod (8) is rotatably connected to the mounting bar (7). The bidirectional threaded rod (8) is threadedly connected to the fixing column (6), and a driving mechanism is provided between the bidirectional threaded rod (8) and the stainless steel pipe (1).

3. A stainless steel tube internal connection structure according to claim 2, characterized in that: The driving mechanism comprises a rotating column (9) rotatably connected in a stainless steel pipe (1), a gear (10) being fixed on the rotating column (9), a gear (11) being fixed on the bidirectional threaded rod (8), and the gear (10) being meshingly connected with the gear (11).

4. The stainless steel tube internal connection structure according to claim 1, characterized in that: A sealing ring 1 (12) is fixed in the annular groove (3), and a sealing ring 2 (13) is fixed on the convex ring (4), and the sealing ring 1 (12) and the sealing ring 2 (13) are in close contact with each other.

5. The stainless steel tube internal connection structure according to claim 3, characterized in that: A cylinder (14) extending from the stainless steel pipe (1) is fixed on the rotating column (9), and a knob is fixed on the cylinder (14).

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