Multi-section seamless steel middle connecting sleeve

Abstract

The utility model discloses a multi-section seamless steel middle connecting sleeve which comprises a sleeve body, a seamless steel pipe body is movably connected in the sleeve body, and a connecting mechanism is movably connected in the sleeve body. According to the multi-section seamless steel middle connecting sleeve, through matched use of the connecting mechanism, in the using process of the connecting sleeve, a groove block on the outer wall of a seamless steel pipe body is aligned with a groove body to be inserted, the seamless steel pipe body is rotated, and then an inserting block is inserted into and penetrates through the groove block from a through groove in a fixing block and extends to one side of the groove block; then the bolts are connected with the groove blocks and the inserting blocks, and the bolts are locked through the nuts, so that the seamless steel pipes are connected with the connecting sleeves, the positions of the seamless steel pipe bodies or the connecting sleeves do not need to be calibrated many times, eccentric connection between the seamless steel pipes is avoided, and the stability and strength of connection between the seamless steel pipes are improved; and therefore, the practicability of the connecting sleeve is improved to a certain extent.

Description

Technical Field

[0001] The utility model relates to the technical field related to connecting sleeves, in particular to a multi-section seamless steel middle connecting sleeve. Background Art

[0002] Seamless steel pipe is made by perforating a whole round steel. There is no weld on the surface of the steel pipe, which is called seamless steel pipe. According to the production method, seamless steel pipe can be divided into hot-rolled seamless steel pipe, cold-rolled seamless steel pipe, cold-drawn seamless steel pipe, extruded seamless steel pipe, jacking pipe, etc. According to the cross-sectional shape, seamless steel pipe is divided into round and special-shaped. Special-shaped pipes have square, oval, triangle, hexagon, melon seed, star, winged pipe and many other complex shapes. The maximum diameter is 900mm and the minimum diameter is 4mm. According to different uses, there are thick-walled seamless steel pipes and thin-walled seamless steel pipes. Seamless steel pipes are mainly used as petroleum geological drilling pipes, cracking pipes for petrochemical industry, boiler pipes, bearing pipes and high-precision structural steel pipes for automobiles, tractors and aviation. In the process of connecting multiple sections of seamless steel pipes, connecting sleeves are needed to connect and disassemble the seamless steel pipes without welding.

[0003] Most of the existing connecting sleeves use threads to connect seamless steel pipes, and it is necessary to calibrate the installation angle of the seamless steel pipe or the connecting sleeve. Otherwise, it is easy to cause an eccentric connection between the seamless steel pipes due to a slight deviation in the connection angle, thereby reducing the stability and strength of the seamless steel pipe during use. Therefore, it is necessary to propose a multi-section seamless steel middle connecting sleeve. Utility Model Content

[0004] The utility model aims to provide a multi-section seamless steel middle connecting sleeve to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a multi-section seamless steel middle connecting sleeve, comprising a cylinder, the interior of the cylinder is movably connected to a seamless steel pipe body, the interior of the cylinder is movably connected to a connecting mechanism, and the interior of the cylinder is movably connected to a loading and unloading mechanism;

[0006] The connecting mechanism includes a slot body, a slot block, a fixed block, a through slot, a movable plate, an insert block, a bolt and a nut. The outer wall of the cylinder is provided with a slot body, the interior of the slot body is movably connected with a slot block, the outer wall of the cylinder is fixedly connected with a fixed block, the interior of the fixed block is provided with a through slot, one side of the fixed block is movably connected with a movable plate, one side of the movable plate is fixedly connected with an insert block, the interior of the slot block is movably connected with a bolt, and the outer wall of the bolt is movably connected with a nut.

[0007] Preferably, the number of the fixing blocks is two, and the fixing blocks are symmetrically arranged with the horizontal midline of the cylinder as the symmetry axis.

[0008] Preferably, the insert block passes through the interior of the fixed block and extends to one side of the slot block, and the insert block is movably connected to the fixed block and the slot block.

[0009] Preferably, the bolt passes through the interior of the insert block and extends to both ends of the slot block, and the bolt is movably connected to the insert block and the slot block.

[0010] Preferably, the loading and unloading mechanism includes a slide groove, a slider, a gasket and a sealing gasket. The inner wall of the cylinder is provided with a slide groove, the interior of the slide groove is movably connected with a slider, one side of the slider is fixedly connected with a gasket, and both ends of the gasket are fixedly connected with sealing gaskets.

[0011] Preferably, the shape and size of the slide groove match those of the slider, and the gasket is movably connected to the cylinder through the slide groove and the slider.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. A multi-section seamless steel middle connecting sleeve is used in cooperation with a connecting mechanism. During the use of the connecting sleeve, the slot block on the outer wall of the seamless steel pipe body is aligned with the slot body for insertion, and the seamless steel pipe body is rotated, and then the plug block is inserted through the slot block from the through slot inside the fixed block and extends to one side of the slot block, and then bolts are used to connect the slot block and the plug block, and nuts are used to lock the bolts to achieve the connection between the seamless steel pipe and the connecting sleeve. There is no need to calibrate the position of the seamless steel pipe body or the connecting sleeve multiple times, which avoids eccentric connection between seamless steel pipes, improves the stability and strength of the connection between seamless steel pipes, and thus improves the practicality of the connecting sleeve to a certain extent;

[0014] 2. This multi-section seamless steel middle connecting sleeve, through the setting of the loading and unloading mechanism, can load and unload the gasket and the sealing pad from the cylinder body through the matching of the slider and the slide groove during the use of the connecting sleeve, which saves time and effort, and at the same time improves the sealing of the connection between the seamless steel pipes, thereby improving the applicability of the connecting sleeve to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 3 It is a partial structural diagram of the connection mechanism of the utility model;

[0018] Figure 4 This is a schematic diagram of the connection structure between the seamless steel pipe body and the slot block of the utility model;

[0019] Figure 5 It is a schematic diagram of the structure of the loading and unloading mechanism of the utility model.

[0020] In the figure: 1. cylinder; 2. seamless steel pipe body; 3. connecting mechanism; 301. slot body; 302. slot block; 303. fixing block; 304. through slot; 305. movable plate; 306. plug-in block; 307. bolt; 308. nut; 4. loading and unloading mechanism; 401. slide slot; 402. slider; 403. gasket; 404. sealing gasket. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-5 The utility model provides a technical solution: a multi-section seamless steel middle connecting sleeve, comprising a cylinder 1, a seamless steel pipe body 2 is movably connected inside the cylinder 1, a connecting mechanism 3 is movably connected inside the cylinder 1, and a loading and unloading mechanism 4 is movably connected inside the cylinder 1;

[0023] The connecting mechanism 3 includes a slot body 301, a slot block 302, a fixed block 303, a through slot 304, a movable plate 305, an insert block 306, a bolt 307 and a nut 308. The outer wall of the cylinder 1 is provided with a slot body 301, and the slot block 302 is movably connected inside the slot body 301. The outer wall of the cylinder 1 is fixedly connected with a fixed block 303. There are two fixed blocks 303. The fixed blocks 303 are symmetrically arranged with the horizontal center line of the cylinder 1 as the symmetry axis, which is convenient for limiting the slot blocks 302 on the outer walls of the two seamless steel pipe bodies 2 and improving the stability of the connection between the seamless steel pipe bodies 2. The fixed block 303 is provided with a through slot 304 inside, and a movable plate 305 is movably connected to one side of the fixed block 303. The movable plate 30 5 is fixedly connected with an insert block 306 on one side, the insert block 306 passes through the interior of the fixed block 303 and extends to one side of the slot block 302, the insert block 306 is movably connected with the fixed block 303 and the slot block 302, which is convenient for limiting the position of the slot block 302 and improving the stability of the connection between the seamless steel pipe body 2 and the cylinder 1, the slot block 302 is movably connected with a bolt 307 inside, the bolt 307 passes through the interior of the insert block 306 and extends to both ends of the slot block 302, the bolt 307 is movably connected with the insert block 306 and the slot block 302, which is convenient for locking the position of the slot block 302 and the insert block 306, and locking the connection between the seamless steel pipe body 2, and the outer wall of the bolt 307 is movably connected with a nut 308.

[0024] See also Figure 1-5 The loading and unloading mechanism 4 includes a slide groove 401, a slider 402, a gasket 403 and a sealing gasket 404. The inner wall of the cylinder 1 is provided with a slide groove 401. The shape and size of the slide groove 401 match the shape and size of the slider 402. The gasket 403 is movably connected to the cylinder 1 through the slide groove 401 and the slider 402, which is convenient for loading and unloading the gasket 403 and the sealing gasket 404 with the cylinder 1 and for replacing them. The slide groove 401 is movably connected to the slider 402, one side of the slider 402 is fixedly connected to the gasket 403, and both ends of the gasket 403 are fixedly connected to the sealing gasket 404.

[0025] Working principle: When using the multi-section seamless steel middle connecting sleeve, first align the slider 402 with the slide groove 401 on the inner wall of the cylinder 1, insert the slider 402, and push the sealing gasket 404 at the same time, place the gasket 403 in the middle position inside the cylinder 1, and wait for the subsequent seamless steel pipe body 2 to be connected to the seal, and then align the groove blocks 302 on the outer walls of the two sections of the seamless steel pipe body 2 with the groove body 301 of the cylinder 1 and insert them, and rotate the seamless steel pipe body 2 to drive the groove block 302 to be placed in the groove body 301, then grab the movable plate 305, insert the plug block 306 on one side from the internal slot 304 of the fixed block 303 and penetrate the slot block 302, so that the plug block 306 extends from the other side of the slot block 302, and then use bolts 307 to connect the slot block 302 and the plug block 306 in turn, and use nuts 308 to lock the bolts 307 to achieve the connection of the seamless steel pipe body 2 through the cylinder body 1. In this way, the use process of the multi-section seamless steel middle connecting sleeve is completed.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-section seamless steel middle connecting sleeve, comprising a cylinder (1), characterized in that: The cylinder (1) is movably connected to a seamless steel pipe body (2), the cylinder (1) is movably connected to a connecting mechanism (3), and the cylinder (1) is movably connected to a loading and unloading mechanism (4); The connecting mechanism (3) comprises a slot body (301), a slot block (302), a fixed block (303), a through slot (304), a movable plate (305), an insert block (306), a bolt (307) and a nut (308); the outer wall of the cylinder (1) is provided with the slot body (301); the slot block (302) is movably connected inside the slot body (301); the outer wall of the cylinder (1) is fixedly connected with the fixed block (303); the through slot (304) is provided inside the fixed block (303); one side of the fixed block (303) is movably connected with the movable plate (305); one side of the movable plate (305) is fixedly connected with the insert block (306); the inside of the slot block (302) is movably connected with the bolt (307); and the outer wall of the bolt (307) is movably connected with the nut (308).

2. A multi-section seamless steel middle connecting sleeve according to claim 1, characterized in that: The number of the fixing blocks (303) is two, and the fixing blocks (303) are symmetrically arranged with the horizontal midline of the cylinder (1) as the symmetry axis.

3. A multi-section seamless steel middle connecting sleeve according to claim 1, characterized in that: The insert block (306) passes through the interior of the fixed block (303) and extends to one side of the slot block (302). The insert block (306) is movably connected to the fixed block (303) and the slot block (302).

4. A multi-section seamless steel middle connecting sleeve according to claim 1, characterized in that: The bolt (307) passes through the interior of the insert block (306) and extends to both ends of the slot block (302). The bolt (307) is movably connected to the insert block (306) and the slot block (302).

5. The multi-section seamless steel middle connecting sleeve according to claim 1, characterized in that: The loading and unloading mechanism (4) comprises a slide groove (401), a slider (402), a gasket (403) and a sealing gasket (404); the inner wall of the cylinder (1) is provided with a slide groove (401); the interior of the slide groove (401) is movably connected to the slider (402); one side of the slider (402) is fixedly connected to the gasket (403); and both ends of the gasket (403) are fixedly connected to the sealing gaskets (404).

6. A multi-section seamless steel middle connecting sleeve according to claim 5, characterized in that: The shape and size of the slide groove (401) match those of the slider (402), and the gasket (403) is movably connected to the cylinder (1) via the slide groove (401) and the slider (402).

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