Steel pipe convenient to connect

Abstract

The utility model relates to the technical field of steel pipes, and discloses a steel pipe convenient to connect, which comprises a steel pipe body I and a steel pipe body II, one end of the steel pipe body I is fixedly connected with a positioning seat, one end of the steel pipe body II is fixedly connected with a connecting plate, and a fixing component is arranged in the positioning seat; and the fixing assembly comprises a clamping block, an external thread and a thread cap, the clamping block is slidably connected to the interior of the positioning seat, the external thread is formed in the end of the clamping block, the internal thread of the thread cap is connected to the outer wall of the clamping block, and the bottom of the clamping block is fixedly connected with a limiting ring. According to the steel pipe connecting device, the clamping blocks smoothly move into the mounting holes of the clamping plates through pushing of the springs and guiding of the telescopic rods, the connecting mode is convenient to operate, the connecting structure is stable, the steel pipe connecting efficiency and quality can be effectively improved, and the overall strength and reliability of the connected steel pipes are enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel pipe technical field especially relates to a steel pipe of convenient connection. BACKGROUND

[0002] In the field of construction engineering, mechanical manufacturing, pipeline transportation, steel pipe as an important structural member or transmission carrier, its convenience, reliability and sealing of connection directly affect the engineering quality and system operation safety. The traditional steel pipe connection mode needs to rely on welding, flange connection process, which not only is complicated in operation, long in time consumption, and has high technical requirements for construction personnel. With the acceleration of industrialization process, the market puts forward higher requirements for steel pipe connection technology, and an efficient sealing and stable connection device capable of realizing rapid positioning is urgently needed to meet the demand of modern engineering for construction efficiency and connection reliability.

[0003] In the existing steel pipe connection technology, the common mechanical structure includes welded interface, bolt flange connection structure, etc. The welded interface realizes connection through high-temperature molten metal, and its technical principle is to form an integral structure by metallurgical combination of welding material and steel pipe body. The bolt flange connection is clamped by bolt group, and the sealing is realized by the contact of flange sealing surface and gasket, and the connection stability is maintained by mechanical fastening force. These traditional technologies mainly rely on fixed connection or rigid sealing principle, and need to go through positioning, alignment, fixation, sealing and other steps in the operation process, and part of the process needs on-site fire operation, which has certain safety hidden danger.

[0004] The existing steel pipe connection usually adopts bolt flange connection, which needs to tighten the bolts one by one, which is complicated and time-consuming, especially in large-scale construction, it is difficult to meet the demand of rapid installation. The welding process needs to be preheated and processed, and stress deformation is easy to occur during welding process, which leads to uneven strength of the whole steel pipe after connection, and may cause connection loosening, fracture and other risks when bearing vibration or pressure. Such problems directly affect the construction progress and system operation reliability, and it is urgent to realize the dual improvement of connection efficiency and stability through innovative mechanical structure. SUMMARY

[0005] In order to make up for the above shortcomings, the utility model provides a steel pipe of convenient connection, which aims at improving the problem that the existing steel pipe connection usually adopts bolt flange connection, which needs to tighten the bolts one by one, which is complicated and time-consuming, especially in large-scale construction, it is difficult to meet the demand of rapid installation.

[0006] In order to achieve the above purpose, the utility model provides the following technical scheme: a steel pipe of convenient connection, comprising steel pipe body one and steel pipe body two, one end of the steel pipe body one is fixedly connected with a positioning seat, one end of the steel pipe body two is fixedly connected with a connecting plate, and the inside of the positioning seat is provided with a fixing assembly;

[0007] The fixed assembly comprises a clamping block, an external thread and a threaded cap, the clamping block is slidably connected in the interior of the positioning seat, the external thread is arranged at the end of the clamping block, the threaded cap is internally threadedly connected to the outer wall of the clamping block, the bottom of the clamping block is fixedly connected with a limiting ring, the interior of the clamping block is fixedly connected with a telescopic rod, the outer wall of the telescopic rod is sleeved with a spring, and the outer wall of the connecting plate is fixedly connected with a clamping plate.

[0008] Further, a plurality of clamping grooves are arranged in the interior of the positioning seat, and a sealing gasket is fixedly connected to one side of the outer wall of the positioning seat.

[0009] Further, the outer wall of the clamping plate is slidably connected in the interior of the clamping groove, so as to position the first steel pipe body and the second steel pipe body.

[0010] Further, a plurality of clamping grooves are arranged in the interior of the positioning seat in a ring array, so as to cooperate with the clamping plate to position.

[0011] Further, the sealing gasket is made of elastic rubber material and is attached to the connecting plate.

[0012] Further, one end of the telescopic rod is fixedly connected in the interior of the positioning seat, and the outer wall of the limiting ring is slidably connected in the interior of the positioning seat.

[0013] Further, one end of the spring is fixedly connected in the interior of the clamping block, and the other end of the spring is fixedly connected in the interior of the positioning seat.

[0014] Further, the outer wall of the clamping block is slidably connected in the interior of the mounting hole, the mounting hole is used for limiting the clamping block, and the internal preset threads of the external thread and the threaded cap are matched.

[0015] The utility model has the advantages of the following beneficial effects:

[0016] 1、 the utility model discloses, utilize spring and telescopic rod guide, make clamping block smoothly remove to the mounting hole of clamping plate, then through the cooperation of threaded cap and external thread and fix clamping block, realize the firm fixing of positioning seat and connecting plate, then complete the reliable connection of steel pipe body one and steel pipe body two, and the operation is convenient in connecting mode, and the connecting structure is stable, can effectively improve the efficiency and quality of steel pipe connection, enhance the overall strength and reliability after steel pipe connection.

[0017] 2、The utility model discloses, through the cooperation of the clamping plate and the clamping groove, the accurate positioning between the steel pipe body one and the steel pipe body two can be realized quickly, and the sealing gasket of the positioning seat one end is attached with the connecting plate, can effectively seal the connecting place, prevents water vapor, dust etc. from entering the inside, avoids the adverse effect to the steel pipe inside, guarantees the use performance stable after the steel pipe connection. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A three-dimensional structure schematic diagram of the steel pipe convenient to connect is provided for the utility model;

[0019] Figure 2 A steel pipe body one end structure schematic diagram of the steel pipe convenient to connect is provided for the utility model;

[0020] Figure 3 The positioning seat internal structure schematic diagram of the steel pipe convenient to connect is provided for the utility model;

[0021] Figure 4 For Figure 2 The enlarged view in A of the utility model;

[0022] Figure 5 For Figure 3 The enlarged view in B of the utility model.

[0023] Legend:

[0024] 1, steel pipe body one;2, steel pipe body two;3, positioning seat;4, connecting plate;5, telescopic rod;6, spring;7, clamping block;8, limit ring;9, external thread;10, threaded cap;11, sealing gasket;12, clamping groove;13, clamping plate;14, mounting hole. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the utility model.

[0026] Refer to Figures 1-5The utility model provides an embodiment: a convenient connection's steel pipe, including steel pipe body one 1 and steel pipe body two 2, one end of steel pipe body one 1 is fixedly connected with positioning seat 3, positioning seat 3 inside integrated card slot 12 is used for steel pipe positioning, outside installation gasket 11 realizes the sealing of junction, and provides the mounting space for spring 6, telescopic link 5 etc. fixed structure, one end of steel pipe body two 2 is fixedly connected with connecting plate 4, and connecting plate 4 is fixedly connected with steel pipe body two 2, as the abutting surface of gasket 11, simultaneously provides the support structure for the fixedness of card block 7, the inside of positioning seat 3 is provided with fixed assembly,

[0027] Fixed assembly includes card block 7, outer thread 9 and screw cap 10, card block 7 is slidably connected in the inside of positioning seat 3, outer thread 9 is set up in the end of card block 7, one end of card block 7 is driven and inserts the mounting hole 14 of card plate 13 through spring 6 and telescopic link 5, and the other end is fixed through outer thread 9 and screw cap 10 cooperation, and the inside screw of screw cap 10 is connected in the outer wall of card block 7, and the bottom of card block 7 is fixedly connected with limiting ring 8, and telescopic link 5 is fixedly connected in the inside of card block 7, and is linked with spring 6, to provide the linear guide track for card block 7, prevent the deflection of card block 7 when moving, ensure its accurate alignment mounting hole 14 and steady insertion, the outer wall of telescopic link 5 is sleeved with spring 6, and card block 7 is moved through the elastic potential energy drive, and after steel pipe positioning, automatically push card block 7 and insert the mounting hole 14 of card plate 13, realize the unpowered pre-fixing, the outer wall of connecting plate 4 is fixedly connected with card plate 13, as the connecting interface of steel pipe body two 2, realizes the axial positioning of steel pipe body one 1 and steel pipe body two 2 through inserting the card slot 12 of positioning seat 3, and its T-shaped section cooperates with card slot 12 and forms transverse limit, prevents the radial deviation of steel pipe after connecting, the inside of card plate 13 is set up with mounting hole 14, one end of telescopic link 5 is fixedly connected in the inside of positioning seat 3, the outer wall of limiting ring 8 is slidably connected in the inside of positioning seat 3, one end of spring 6 is fixedly connected in the inside of card block 7, the other end of spring 6 is fixedly connected in the inside of positioning seat 3, the outer wall of card block 7 is slidably connected in the inside of mounting hole 14, and mounting hole 14 is used for limiting card block 7, and the inside preset thread of outer thread 9 and screw cap 10 is consistent.

[0028] Specifically, when the steel pipe body one 1 and the steel pipe body two 2 are positioned, the spring 6 installed in the positioning seat 3 releases the elastic force due to the initial compression state, pushes the telescopic rod 5 connected therewith to move smoothly along the guide rail, and then drives the clamping block 7 to insert into the mounting hole 14 of the clamping plate 13 at a constant speed. The linear guide function of the telescopic rod 5 avoids the deflection and shaking of the clamping block 7 during movement, ensures smooth engagement of the front chamfer with the edge of the mounting hole 14, and then rotates the threaded cap 10 along the external thread 9 at the end of the clamping block 7. The helix angle design of the threaded pair can convert the rotary torque into axial compression force, so that the clamping block 7 is firmly locked in the matching cavity of the positioning seat 3 and the connecting plate 4. Through the elastic element, automatic centering is realized without power, and through mechanical threaded connection, rigid locking is formed. The operation process can be completed by one hand without professional tools. Compared with traditional bolt connection, the alignment, installation and tightening processes are reduced. At the same time, the interference fit of the clamping block 7 and the mounting hole 14, and the tooth surface engagement of the threaded cap 10 and the external thread 9 form a multi-stage load transmission path, so that the connecting structure can withstand complex working conditions of tensile, compressive and torsional combined forces, and significantly improve the overall mechanical properties and reliability of the connected steel pipe.

[0029] Referring to Figures 1-5 , a plurality of clamping grooves 12 are formed in the inside of the positioning seat 3, which form a mortise and tenon type cooperation with the clamping plate 13, and limit the movement freedom of the clamping plate 13 through the groove side wall and the top surface, so as to ensure the geometric precision during steel pipe connection and avoid manual calibration errors. The outer wall of the positioning seat 3 is fixedly connected with a sealing gasket 11, which is pressed and connected with the surface of the connecting plate 4 when the clamping plate 13 is inserted into the clamping groove 12, forming a ring-shaped sealing barrier to block the intrusion of water, dust and other external impurities into the connection gap. The outer wall of the clamping plate 13 is slidingly connected in the inside of the clamping groove 12, which is used for positioning the steel pipe body one 1 and the steel pipe body two 2. The plurality of clamping grooves 12 are arranged in the inside of the positioning seat 3 in a ring array shape, which is used for positioning with the clamping plate 13. The sealing gasket 11 is made of elastic rubber material and is attached to the connecting plate 4.

[0030] Specifically, through the mortise and tenon type cooperation of the clamping plate 13 at one end of the steel pipe body two 2 and the clamping groove 12 inside the positioning seat 3, the axial alignment of the steel pipe body one 1 and the steel pipe body two 2 can be quickly completed during the horizontal pushing-in process, the three-dimensional limiting is formed by the cross section of the clamping plate 13 and the stepped inner wall of the clamping groove 12, thereby avoiding the cumbersome process of manual calibration in the traditional butt joint mode, at the same time, the annular sealing gasket 11 on the side of the positioning seat 3 close to the connecting plate 4 is tightly attached to the surface of the connecting plate 4 due to the extrusion deformation when the clamping plate 13 is completely embedded in the clamping groove 12, thereby forming a surrounding sealing barrier, not only the physical contact is used to block the invasion of external impurities such as water vapor and dust into the connecting gap, but also the radial stress of the steel pipe body one 1 and the steel pipe body two 2 is evenly dispersed to the overall structure of the positioning seat 3 through the rigid contact between the clamping plate 13 and the clamping groove 12, so that the double protection mechanisms of anti-leakage and anti-deviation are simultaneously constructed while the accurate positioning is realized, thereby ensuring the long-term stability of the sealing performance and geometric precision after the steel pipe connection.

[0031] Working principle: when the steel pipe with convenient connection needs to be used, first, the clamping plate 13 at one end of the steel pipe body two 2 is inserted into the clamping groove 12 inside the positioning seat 3, the positioning between the steel pipe body one 1 and the steel pipe body two 2 is realized, at this time, the sealing gasket 11 at one end of the positioning seat 3 is attached to the connecting plate 4, thereby sealing the connecting part between the steel pipe body one 1 and the steel pipe body two 2, and avoiding the entry of water vapor, dust and the like into the interior to cause the influence.

[0032] In addition, after the steel pipe body one 1 and the steel pipe body two 2 are positioned, the clamping block 7 is moved to the mounting hole 14 inside the clamping plate 13 through the pushing cooperation of the spring 6 and the guidance of the telescopic rod 5, then the threaded cap 10 is rotated on the external thread 9 at the end of the clamping block 7, thereby fixing the threaded cap 10 on the outer wall of the clamping block 7, further fixing the clamping block 7 inside the positioning seat 3 and the connecting plate 4, realizing the fixation of the positioning seat 3 and the connecting plate 4, and then realizing the connection of the steel pipe body one 1 and the steel pipe body two 2.

[0033] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A steel pipe for easy connection comprising a steel pipe body one (1) and a steel pipe body two (2), characterized in that: One end of the steel pipe body one (1) is fixedly connected with a positioning seat (3), one end of the steel pipe body two (2) is fixedly connected with a connecting plate (4), the inside of the positioning seat (3) is provided with a fixed assembly; The fixed assembly includes a clamping block (7), an external thread (9) and a threaded cap (10), the clamping block (7) is slidably connected in the inside of the positioning seat (3), the external thread (9) is opened in the end of the clamping block (7), the threaded cap (10) is internally threaded in the outer wall of the clamping block (7), the bottom of the clamping block (7) is fixedly connected with a limiting ring (8), the inside of the clamping block (7) is fixedly connected with a telescopic rod (5), the outer wall of the telescopic rod (5) is sleeved with a spring (6), the outer wall of the connecting plate (4) is fixedly connected with a clamping plate (13), the inside of the clamping plate (13) is provided with a mounting hole (14).

2. A conveniently connected steel pipe according to claim 1, characterized in that: The inside of the positioning seat (3) is provided with a plurality of clamping grooves (12), one side of the outer wall of the positioning seat (3) is fixedly connected with a sealing gasket (11).

3. A conveniently connected steel pipe according to claim 2, characterized in that: The outer wall of the clamping plate (13) is slidably connected in the inside of the clamping groove (12), which is used for positioning the steel pipe body one (1) and the steel pipe body two (2).

4. A conveniently connected steel pipe according to claim 3, characterized in that: A plurality of clamping grooves (12) are arranged in the inside of the positioning seat (3) in a ring array, which is used for positioning the clamping plate (13).

5. A convenient connection steel pipe according to claim 3, characterized by: The sealing gasket (11) is made of elastic rubber material and is attached to the connecting plate (4).

6. A convenient connection steel pipe according to claim 1, characterized by: One end of the telescopic rod (5) is fixedly connected in the inside of the positioning seat (3), the outer wall of the limiting ring (8) is slidably connected in the inside of the positioning seat (3).

7. A convenient connection steel pipe according to claim 1, characterized by: One end of the spring (6) is fixedly connected in the inside of the clamping block (7), the other end of the spring (6) is fixedly connected in the inside of the positioning seat (3).

8. A convenient connection steel pipe according to claim 1, characterized by: The outer wall of the clamping block (7) is slidably connected in the inside of the mounting hole (14), the mounting hole (14) is used for limiting the clamping block (7), the internal preset thread of the external thread (9) and the threaded cap (10) is consistent.

Images