Novel stainless steel pipe connecting structure

Abstract

The utility model relates to a novel stainless steel pipe connecting structure, and aims to solve the problems of complicated installation, insufficient sealing performance, high cost and the like in the conventional connecting mode. The structure comprises an open annular shell, and two ends of the open annular shell are folded inwards to form a groove-shaped structure; one end of each extension plate is perpendicular to the side wall of the shell, and the other end of each extension plate is bent and attached to form an enclosed cavity and is provided with a mounting groove; the arc-shaped gasket is located in the cavity, two ends abut against the extension plates, and mounting holes are formed; the C-shaped lining plate is attached to the inner wall of the groove-shaped structure of the shell and is internally provided with a One side of the annular clamping strip is in contact with the inner wall, and the other side of the annular clamping strip is of a tooth-shaped structure to form a guide inclined surface; and the screw rod penetrates through the mounting hole and is connected with the nut to realize stainless steel pipe connection. The structure simplifies installation, improves sealing performance, reduces cost and is suitable for various stainless steel pipe connection scenes.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of stainless steel pipe connection, in particular to a novel stainless steel pipe connection structure. BACKGROUND

[0002] The stainless steel pipe is widely used in the fields of building water supply and drainage, industrial pipeline and food processing due to its excellent corrosion resistance and mechanical properties. However, the traditional stainless steel pipe connection mode has many problems and needs to be improved. Although the welding connection can realize firm connection, professional equipment and personnel are needed, which increases the construction cost and difficulty. More importantly, stress concentration is prone to occur at the welding position, which becomes a potential corrosion hazard and affects the long-term service life of the pipeline. Although the flange connection is convenient to disassemble and assemble, a large number of bolts are needed, which not only makes the installation process cumbersome but also significantly increases the connection cost. In addition, the flange connection has a large volume and is limited in space-restricted occasions. Although the threaded connection is simple to operate, due to the limitation of the machining precision of threads and the material properties, it is difficult to guarantee good sealing performance and is prone to leakage, especially under the working conditions of high pressure or frequent temperature change. The defects of these traditional connection modes not only affect the installation efficiency and use safety of the stainless steel pipeline system but also increase the difficulty of maintenance and replacement. Therefore, it is of great practical significance to develop a simple, efficient and good sealing stainless steel pipe connection structure. The novel connection structure should be able to overcome the defects in the prior art, realize quick and reliable connection, guarantee good sealing performance and durability, and meet the needs of different application scenarios. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at providing a novel stainless steel pipe connection structure, which aims at solving the problems of complex installation, insufficient sealing performance, high cost and the like in the prior art. In order to achieve the above-mentioned purpose, the application provides the following technical scheme: a novel stainless steel pipe connection structure comprising:

[0004] The shell is an open ring with inner folds at both ends, and a groove structure is formed inside.

[0005] The two extension plates are symmetrically arranged at both ends of the side wall of the shell, one end of each extension plate is perpendicular to the side wall of the shell, and the other end of each extension plate is bent to fit the side wall of the shell, forming a closed cavity with the shell, and an installation groove is arranged on each extension plate.

[0006] The arc-shaped gasket is located in the two closed cavities and abuts against the perpendicular end of each extension plate, and an installation hole is arranged in the installation groove on the arc-shaped gasket.

[0007] A C-shaped lining plate is arranged in the shell and is attached to the inner wall of the groove-shaped structure of the shell, and a sealing ring is arranged in the C-shaped lining plate;

[0008] A card strip is arranged in the inner folded edge at both ends of the shell and has a tooth-shaped structure on one side, and the two ends of the card strip are overlapped, and the side with the tooth-shaped structure of the card strip is inclined to the inner side of the shell to form a guide slope.

[0009] A screw is arranged through the mounting hole, and the two extension plates are close to each other through the threaded connection with the nut, so as to realize the connection of the stainless steel pipe in the connecting structure.

[0010] Preferably, the material of the card strip is spring steel, and the tooth pitch of the tooth-shaped structure of the card strip is 3-10 mm.

[0011] Preferably, the extension plate and the shell are arranged in one piece.

[0012] Preferably, the two end faces of the arc-shaped gasket are on the same plane and are coplanar with the vertical end of the extension plate.

[0013] Preferably, the width of the sealing ring is adapted to the width of the inner wall of the shell.

[0014] Preferably, the material of the sealing ring is silicone rubber, and the outer diameter of the sealing ring is smaller than the inner diameter of the shell.

[0015] Preferably, the length of the overlapped two ends of the card strip is 5-10 mm.

[0016] Preferably, the distance between the opposite sides of the hexagonal nut is adapted to the width of the mounting groove, and the nut can be clamped into the mounting groove.

[0017] Preferably, the nut and the extension plate are fixedly connected.

[0018] Compared with the prior art, the beneficial effects of the present application are:

[0019] The application provides a novel stainless steel pipe connecting structure, which comprises a shell, an extension plate, an arc-shaped gasket, a C-shaped lining plate, a clamping strip and a screw rod and the like components, and through the synergistic effect of the components, the stainless steel pipe is quickly and reliably connected. The structure formed by the shell and the extension plate provides a stable connection foundation, the C-shaped lining plate and the sealing ring ensure good sealing performance, the design of the clamping strip enhances the firmness and adaptability of the connection, and the cooperation of the screw rod and the nut makes the whole connection process simple and fast. This design solves the problems of complex installation, poor sealing performance and high cost in the traditional connection mode, and has the advantages of simple installation, good sealing performance, reliable connection and low cost. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 A novel stainless steel pipe connecting structure according to an embodiment of the application is shown in the perspective view;

[0021] Fig. 2 Another perspective view of a novel stainless steel pipe connecting structure according to an embodiment of the application is shown;

[0022] Fig. 3 An exploded view of a novel stainless steel pipe connecting structure according to an embodiment of the application is shown;

[0023] In the figure: 1, shell; 2, extension plate; 3, enclosed cavity; 4, mounting groove; 5, arc-shaped gasket; 6, mounting hole; 7, C-shaped lining plate; 8, sealing ring; 9, clamping strip; 10, screw rod; 11, nut. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the application.

[0025] It should be noted that in the description of the application, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0026] In addition, it should be understood that the sizes of the various components shown in the drawings are not drawn in accordance with the actual proportional relationship, for example: the thickness or width of certain layers can be exaggerated relative to other layers.

[0027] It should be noted that like reference numerals and characters refer to like items throughout the drawings and like materials function in like manner, therefore, once an item is defined or described in one drawing, it is not necessary to further discuss and describe it in further detail in the descriptions of the subsequent drawings.

[0028] To solve the technical problems in the background art, as shown in the description Figs. 1-3 The application provides a technical solution: a new stainless steel pipe connecting structure, characterized by the following:

[0029] The application provides a new stainless steel pipe connecting structure, which comprises an outer shell 1, an extension plate 2, an arc-shaped gasket 5, a C-shaped lining plate 7, a clamping strip 9, and a screw rod 10. The outer shell 1 provides a basic support structure, which is an open ring with inner flanges at both ends and a groove-shaped structure inside. Two extension plates 2 are symmetrically arranged at both ends of the side wall of the outer shell 1, with one end perpendicular to the side wall of the outer shell 1 and the other end bent to fit the side wall of the outer shell 1, forming a closed cavity 3 with the outer shell 1, and the extension plate 2 is provided with a mounting groove 4 for easy installation. The arc-shaped gasket 5 is located in the two closed cavities 3 and plays a positioning and supporting role, with its two ends abutting the perpendicular end of the extension plate 2 and the mounting hole 6 on it cooperating with the mounting groove 4. The C-shaped lining plate 7 is arranged in the outer shell 1 and fits the inner wall of the groove-shaped structure of the outer shell 1, increasing the stability of the connection. The C-shaped lining plate 7 is provided with a sealing ring 8 inside, improving the sealing performance of the stainless steel pipe connection. The clamping strip 9 is tightly connected with the stainless steel pipe and the outer shell 1 through its toothed structure and ring design, and its inclined guide slope ensures the convenience of installation. The clamping strip 9 is in the shape of a ring and is arranged in the inner flanges at both ends of the outer shell 1, with one side in contact with the inner wall of the outer shell 1 and the other side provided with a toothed structure, and the two ends of the clamping strip 9 overlap, with the side of the clamping strip 9 with the toothed structure inclined to the inside of the outer shell 1, forming a guide slope. The overlapping clamping strip 9 ensures that there is no interference during tightening. The screw rod 10 is connected with the nut 11 through the mounting hole 6, making the extension plate 2 close, thereby realizing the connection of the stainless steel pipe located in the connecting structure. These technical features work together to provide a stainless steel pipe connecting structure that does not require professional equipment and personnel, is easy to install, and has good sealing performance.

[0030] It is worth noting that the material of the clamping strip 9 is spring steel, and the pitch of the toothed structure of the clamping strip 9 is 3-10 mm. The material of spring steel has good elasticity and durability, which can provide stable elastic force during the connection process to ensure the firmness of the connection. The toothed structure of the clamping strip 9 is designed with a pitch of 3-10 mm, which can provide better engagement force during the connection process to prevent loosening or falling off. The pitch of the toothed structure is designed to be 3-10 mm, which can be adjusted according to the specific application requirements. For example, in the case of higher engagement force, a smaller pitch can be selected; while in the case of a larger adjustment range, a larger pitch can be selected. By selecting spring steel as the material of the clamping strip 9 and designing a reasonable pitch of the toothed structure, the problem of improper material selection and unreasonable design of the toothed structure in the traditional stainless steel pipe connection method is solved, thereby improving the reliability and sealing performance of the connection.

[0031] It is worth noting that by integrally forming the extension plate 2 with the shell 1, the connection between the extension plate 2 and the shell 1 is more firm and reliable, avoiding the loosening or falling off problem that may occur in the traditional connection method. In this way, the overall stability and sealing performance of the stainless steel pipe connection structure are further improved, thereby effectively solving the technical problem of the combination of the extension plate 2 and the shell 1. The integrally formed extension plate 2 and shell 1 can be realized in various ways, such as mold injection molding or stamping forming process. Mold injection molding is suitable for plastic materials, while stamping forming is suitable for metal materials. Specifically, the appropriate forming process can be selected according to the characteristics of the selected material to ensure the integrally formed effect of the extension plate 2 and the shell 1. In addition, the integrally formed extension plate 2 and shell 1 can be surface treated as needed to improve their corrosion resistance and mechanical strength.

[0032] It is worth noting that the two end faces of the arc-shaped gasket 5 are in the same plane and coplanar with the vertical end of the extension plate 2. By keeping the two end faces of the arc-shaped gasket 5 and the vertical end of the extension plate 2 in the same plane, the stability of the screw 10 during the connection process can be ensured. This design can effectively avoid the shaking problem caused by uneven contact surface, thereby improving the reliability and service life of the connection structure. Specifically, the flatness of the two end faces of the arc-shaped gasket 5 can be ensured by precision machining, and the coplanarity with the vertical end of the extension plate 2 during installation can be ensured by positioning devices. For example, the arc-shaped gasket 5 can be accurately cut and polished by a numerical control machine during machining to ensure that the two end faces are in the same plane. In addition, positioning blocks or clamps can be used during installation to accurately position the arc-shaped gasket 5 on the vertical end of the extension plate 2. As a preferred embodiment, the material of the arc-shaped gasket 5 can be selected from high-strength and corrosion-resistant metal materials such as stainless steel or aluminum alloy to further ensure its stability and durability during use.

[0033] It is worth noting that the width of the sealing ring 8 is adapted to the width of the inner wall of the shell 1, ensuring that the sealing ring 8 can tightly fit on the inner wall of the shell 1, thereby improving the sealing performance of the connection structure and preventing leakage at the connection of the stainless steel pipe. The sealing ring 8 can be made of materials such as silicone rubber, which has good elasticity and corrosion resistance, so that it can maintain good sealing effect even after long-term use. The width of the sealing ring 8 needs to be accurately calculated and tested to ensure that it can form a tight fit on the inner wall of the shell 1. As a preferred embodiment, the width of the sealing ring 8 can be slightly larger than the width of the inner wall of the shell 1, and the tight fit can be achieved by compression installation.

[0034] It is worth noting that the sealing ring 8 is made of silicone rubber, which can provide good elasticity and corrosion resistance to ensure the sealing performance of the connection structure. At the same time, the outer diameter of the sealing ring 8 is designed to be smaller than the inner diameter of the shell 1, so that the sealing ring 8 can better fit on the inner wall of the shell 1 during installation and achieve effective sealing by compression deformation. Its outer diameter is smaller than the inner diameter of the shell 1, which makes the sealing ring 8 easily enter the shell 1 during installation and tightly fit on the inner wall of the shell 1 by compression deformation when subjected to external force, achieving reliable sealing effect. As a preferred embodiment, the outer diameter of the sealing ring 8 can be designed to be 0.1-0.5mm smaller than the inner diameter of the shell 1 to ensure the best balance between installation convenience and sealing effect. During the connection process, the shell 1 will be fastened, the inner diameter will be reduced, and the sealing ring 8 will be further compressed to improve its sealing performance.

[0035] It is worth noting that by specifying the length of the overlapping ends of the clamping strip 9 to be within the range of 5-10mm, the stability and sealing performance of the clamping strip 9 in the stainless steel pipe connection structure are ensured. The length of the overlapping ends of the clamping strip 9 plays a key role in the stability and sealing performance of the connection structure, and through appropriate length design, it can effectively prevent connection loosening and leakage problems. The length of the overlapping ends of the clamping strip 9 is 5-10mm, which not only ensures that the clamping strip 9 maintains appropriate fastening force during connection, but also prevents the clamping strip 9 from affecting the connection quality due to excessive length or shortness. Specifically, the overlapping length of 5-10mm can avoid material waste and processing difficulties while ensuring sealing performance and stability. For example, choosing a 5mm overlapping length can achieve reliable connection in a limited space, while choosing a 10mm overlapping length is suitable for situations that require higher strength and sealing performance.

[0036] It is worth mentioning that the hexagonal opposite side distance of the nut 11 is adapted to the width of the mounting groove 4 and the feature that the nut 11 can be clamped into the mounting groove 4 ensures that the nut 11 can be firmly fixed in the mounting groove 4, thereby providing a reliable connection in the stainless steel pipe connection structure. The hexagonal opposite side distance of the nut 11 is adapted to the width of the mounting groove 4, which means that the distance between two pairs of sides of the nut 11 is the same as or very close to the width of the mounting groove 4, so that the nut 11 can be clamped into the mounting groove 4. In this way of adaptation and fixation, the problem of loose or unstable nut 11 in the mounting groove 4 is solved, ensuring the stability and sealing of the connection.

[0037] It should be noted that the nut 11 is fixedly connected with the extension plate 2, and this technical feature ensures that the nut 11 will not loosen or fall off during use, thereby improving the stability and reliability of the connection. By fixing the nut 11 on the extension plate 2, the connection of the stainless steel pipe can be more effectively achieved, and the installation process is simplified, reducing the frequency and cost of maintenance. In the process of realizing the fixed connection of the nut 11 and the extension plate 2, various ways such as welding, bonding or mechanical fixation can be adopted. For example, as a preferred embodiment, the nut 11 can be firmly fixed on the extension plate 2 by welding technology, which can ensure that the nut 11 will not displace or loosen when subjected to external force. In addition, the nut 11 can also be bonded to the extension plate 2 by using adhesive, which is suitable for occasions that do not need to be frequently disassembled.

[0038] Although the embodiments of the present application have been shown and described, it is understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A novel stainless steel pipe connecting structure, characterized by, The utility model relates to a kind of stainless steel pipe connecting structure, including: Housing (1), the housing (1) is open annular, and both ends have inner folding edge, and the inside forms channel structure; Extension plate (2), two described extension plate (2) symmetry is set to the side wall both ends of the housing (1), and one end is perpendicular to the side wall of the housing (1), and the other end is adhered after bending to the side wall of the housing (1), and with the housing (1) forms a enclosed cavity (3), and installation groove (4) is equipped on the extension plate (2); Arc gasket (5), the arc gasket (5) is located in two described enclosed cavity (3), and both ends are respectively with the perpendicular end of the extension plate (2) abut, and installation hole (6) located in the installation groove (4) is set on the arc gasket (5); C-shaped lining plate (7), the C-shaped lining plate (7) is set in the housing (1), and is adhered with the inner wall of the channel structure of the housing (1), and sealing ring (8) is set in the C-shaped lining plate (7); Clamp strip (9), the clamp strip (9) is annular as a whole, is set in the inner folding edge of the housing (1) both ends, and one side is in contact with the inner wall of the housing (1), and the other side is equipped with tooth structure, and the both ends of the clamp strip (9) are overlapped, and the side of the clamp strip (9) with tooth structure is inclined to the inside of the housing (1), and forms guide slope; Screw rod (10), the screw rod (10) passes through the installation hole (6), is close to two described extension plate (2) by the thread connection with nut (11), to realize the connection of stainless steel pipe located in the connecting structure.

2. The novel stainless steel pipe connection structure according to claim 1, characterized by The material of the clamp strip (9) is spring steel, and the pitch of the tooth structure of the clamp strip (9) is 3-10mm.

3. The novel stainless steel pipe connection structure according to claim 1, characterized by The extension plate (2) and the housing (1) are integrally formed.

4. The novel stainless steel pipe connecting structure according to claim 1, characterized by The both end faces of the arc gasket (5) are on the same plane, and are coplanar with the perpendicular end of the extension plate (2).

5. The novel stainless steel pipe connecting structure according to claim 1, characterized by The width of the sealing ring (8) is adapted to the width of the inner wall of the housing (1).

6. The novel stainless steel pipe connecting structure according to claim 1, characterized by The material of the sealing ring (8) is silicone rubber, and the outer diameter is less than the inner diameter of the housing (1).

7. The novel stainless steel pipe connection structure according to any one of claims 1 to 6, characterized by The length of the both ends of the clamp strip (9) overlapped is 5-10mm.

8. The novel stainless steel pipe connection structure according to claim 7, characterized by The distance of the hexagonal opposite side of the nut (11) is adapted to the width of the installation groove (4), and the nut (11) can be clamped into the installation groove (4).

9. The novel stainless steel pipe connection structure according to claim 8, characterized by The nut (11) is fixedly connected with the extension plate (2).

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