A pipe fitting structure for easy connection

Abstract

The utility model discloses a pipe fitting structure convenient to connect relates to pipe fitting connection field, including pipe fitting one, the pipe fitting one end is inserted with pipe fitting two, the pipe fitting one and pipe fitting two between the insertion have connecting piece for the pipe fitting one and pipe fitting two inner wall jacking, the connecting piece is by top rhombic frame, middle straight pole section and bottom cross section three part constitutes. Advantageous effect lies in: connecting piece adopts top rhombic frame, middle straight pole section and bottom cross section's integrated structure. Bottom cross section is X shape structure, utilizes barb principle and pipe fitting one inner wall close contact, forms stable radial support after inserting, effectively prevents connecting piece in pipe fitting one and slide or fall off. Top rhombic frame width is greater than pipe fitting one inner diameter, and after the contact with pipe fitting two inner wall, produces elastic top tight force, realizes pipe fitting two and connecting piece's firm cooperation, has enhanced the integral anti -vibration of pipe fitting one and pipe fitting two after connection obviously, avoided traditional insertion structure's loose problem.

Description

Technical Field

[0001] This utility model relates to the field of pipe fitting connection technology, and specifically to a pipe fitting structure that facilitates connection. Background Technology

[0002] For scenarios requiring temporary or lightweight pipe connections, existing simple plug-in structures have significant drawbacks:

[0003] Most connector fittings are connected only through end clearance fit, lacking an effective support and fixing structure, and are prone to loosening and falling off under the action of external forces such as impact and vibration;

[0004] Some connectors using elastic snap-fit ​​have problems such as difficulty in snapping them in during installation and easy damage to the inner wall of the pipe during disassembly due to unreasonable structural design. Threaded connections are relatively cumbersome to install.

[0005] Meanwhile, traditional connectors and pipe fittings have poor compatibility, making it difficult to simultaneously meet the stable connection requirements of pipe fittings with different inner diameters, resulting in low connection efficiency. Utility Model Content

[0006] The purpose of this utility model is to provide a pipe fitting structure that is easy to connect in order to solve the above problems, as detailed below.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] This utility model provides a pipe fitting structure that is easy to connect, including a pipe fitting one, a pipe fitting two inserted into one end of the pipe fitting one, and a connector inserted between the pipe fitting one and the pipe fitting two for supporting the inner walls of the pipe fitting one and the pipe fitting two.

[0009] The connector consists of three parts: a top diamond-shaped frame, a middle straight rod section, and a bottom cross section.

[0010] Using the above-mentioned pipe fitting structure that facilitates connection, the connector is inserted into pipe fitting one until the top diamond frame contacts the end of pipe fitting one. Then, pipe fitting two is inserted into pipe fitting one, allowing the connector to enter pipe fitting two. The top diamond frame and the bottom cross section can support the inner walls of pipe fitting one and pipe fitting two respectively. The bottom cross section utilizes the barb principle to improve the stability of the connector installed in pipe fitting one.

[0011] Preferably, the top rhombus frame is made of bent steel wire to form the outline of an arrowhead, and the corners of the top rhombus frame have a smooth arc transition.

[0012] Preferably, the middle straight rod section includes two parallel steel wire straight rods, which are formed by the two lower corners of the top diamond frame extending vertically downwards.

[0013] Preferably, the bottom cross section has an X-shaped structure, which is formed by two straight steel wire rods bending in opposite directions and crossing each other.

[0014] Preferably, the width of the bottom cross section is greater than that of the top diamond frame.

[0015] Preferably, the connector is a one-piece bent steel wire component.

[0016] Preferably, both ends of the bottom cross section are in contact with the inner wall of the pipe.

[0017] Preferably, both ends of the top rhomboid frame are in contact with the inner wall of the second pipe.

[0018] Preferably, the width of the top diamond-shaped frame is greater than one inner diameter of the pipe fitting.

[0019] Preferably, one end of the pipe fitting is provided with a narrow neck, which serves as the insertion end of the pipe fitting and is inserted into the inner wall of the pipe fitting two, with the surfaces of the pipe fitting one and the pipe fitting two being flush.

[0020] The beneficial effects are:

[0021] 1. The connector adopts an integrated molding structure consisting of a top diamond-shaped frame, a middle straight rod section, and a bottom cross section, achieving double fixation through differentiated top support. The bottom cross section has an X-shaped structure, utilizing the principle of barbs to make close contact with the inner wall of fitting one, forming a stable radial support after insertion, effectively preventing the connector from sliding or falling off within fitting one. The width of the top diamond-shaped frame is greater than the inner diameter of fitting one, generating an elastic clamping force after contacting the inner wall of fitting two, achieving a stable fit between fitting two and the connector, significantly enhancing the overall vibration resistance after the connection of fitting one and fitting two, and avoiding the loosening problem of traditional plug-in structures.

[0022] 2. The connector is formed by integral bending of steel wire, without splicing joints, resulting in high overall structural strength and excellent elastic deformation capability. The rounded corner design of the top diamond frame ensures a close fit to the inner wall of the pipe while preventing sharp edges from scratching the inner wall. The width of the bottom intersection section is greater than that of the top diamond frame, resulting in a more reasonable distribution of stress points and further improving support stability. Simultaneously, the elasticity of the steel wire allows the connector to adapt to a certain range of pipe inner diameter errors, enhancing its compatibility with different pipe specifications.

[0023] 3. Fitting 1 is inserted into the inner wall of fitting 2 via a narrow neck at the end. During installation, simply insert the connector into fitting 1 until the top diamond-shaped frame contacts the end of fitting 1, then insert fitting 2 into fitting 1 to complete the connection. No additional accessories are required throughout the process, making the installation quick and easy. Compared to traditional connection methods such as flanges and threads, this significantly reduces installation time and lowers the skill requirements for operators, making it particularly suitable for scenarios requiring rapid assembly. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the exploded structure of this utility model;

[0026] Figure 2 This is a front view structural diagram of the present invention;

[0027] Figure 3 This is a three-dimensional cross-sectional structural diagram of the pipe fitting of this utility model;

[0028] Figure 4 This is a three-dimensional structural diagram of the connector of this utility model;

[0029] Figure 5 This is a disassembly diagram of the connector structure of this utility model.

[0030] The annotations in the attached figures are explained as follows:

[0031] 1. Fitting 1; 2. Fitting 2; 3. Neck; 4. Connector; 5. Middle straight section; 6. Bottom cross section; 7. Top diamond frame. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0033] See Figures 1-5 As shown, this utility model provides a pipe fitting structure that is easy to connect, including a pipe fitting 1, a pipe fitting 2 inserted into the end of the pipe fitting 1, and a connector 4 inserted between the pipe fitting 1 and the pipe fitting 2 for supporting the inner walls of the pipe fitting 1 and the pipe fitting 2.

[0034] Both fittings 1 and 2 are made of corrosion-resistant materials, preferably PVC, stainless steel, or aluminum alloy, with the specific material selected based on the characteristics of the transported medium. Fitting 1 has a main body inner diameter of 50-150mm, and its length is designed according to actual needs. Its end neck 3 is a one-piece molded structure with a neck length of 15-30mm. The outer diameter of the neck is 0.1-0.3mm smaller than the inner diameter of fitting 2, using a clearance fit to ensure smooth insertion. Simultaneously, the wall thickness of the neck is 10%-15% greater than the main body wall thickness of fitting 1, enhancing the structural strength of the insertion joint and preventing deformation after long-term use. The inner wall of fitting 2's end is chamfered at a 30° angle with a chamfer length of 5mm to facilitate guidance during insertion of the neck and reduce insertion resistance.

[0035] The connector 4 consists of three parts: a top diamond-shaped frame 7, a middle straight rod section 5, and a bottom cross section 6.

[0036] Connector 4 is integrally bent from high-strength spring steel wire with a diameter of 2-3mm. The wire material is either 65Mn spring steel or 304 stainless steel. 65Mn steel is suitable for dry environments, while 304 stainless steel is suitable for humid or corrosive environments. Its three-section structure precisely matches the pipe fitting specifications.

[0037] Top diamond frame 7: A diamond structure with an acute angle of 60°. The length of the long diagonal is 2-5mm larger than the inner diameter of fitting 1, and the length of the short diagonal is slightly smaller than the inner diameter of fitting 2. The radius of the arc at the corner of the diamond frame is 1.5 times the diameter of the steel wire, i.e., 3-4.5mm, which eliminates stress concentration and avoids scratching the inner wall of fitting 2 during insertion. The two ends of the diamond frame are straight sections, 5-8mm in length, ensuring uniform contact area with the inner wall of fitting 2 and stable top support force.

[0038] Middle Straight Rod Section 5: The spacing between the two parallel steel wires is consistent with the length of the short side of the top diamond frame. The length of the straight rod section is equal to the sum of the length of the narrow neck 3 of fitting one and the insertion depth of fitting two, usually 20-40mm, ensuring that the top diamond frame and the bottom intersection section can act on the inner walls of fitting two and fitting one respectively. The verticality error of the straight rod section steel wire is ≤0.5mm / m to avoid uneven stress on the top support due to skewing.

[0039] Bottom Cross Section 6: It has a 90° X-shaped structure with the intersection point located at the midpoint of the extension line of the straight rod section. After the intersection, the extension lengths of both ends are equal, each 8-12mm. The overall width is 3-6mm larger than the long side diagonal of the top diamond frame and 5-8mm larger than the inner diameter of the pipe fitting. The end of the steel wire in the cross section is slightly bent outward at an angle of 10°-15° to form a "barb" structure. After being inserted into the pipe fitting, it forms a mechanical engagement with the inner wall, enhancing the anti-detachment effect. The cross part is fixed by a cold pressing process to ensure that the cross angle is stable and does not deform.

[0040] As an optional implementation, the top diamond frame 7 is made of bent steel wire to form the outline of an arrowhead, and the corners of the top diamond frame 7 have a smooth arc transition.

[0041] The middle straight rod section 5 includes two parallel steel wire straight rods, which are formed by the two lower corners of the top diamond frame 7 extending vertically downwards.

[0042] The bottom cross section 6 has an X-shaped structure, which is formed by the lower ends of two straight steel wire rods bending in opposite directions and crossing each other.

[0043] The width of the bottom intersection segment 6 is greater than that of the top diamond frame 7.

[0044] Connector 4 is a one-piece bent steel wire component.

[0045] The two ends of the bottom cross section 6 are in contact with the inner wall of pipe fitting 1.

[0046] Both ends of the top diamond frame 7 are in contact with the inner wall of pipe fitting 2.

[0047] The width of the top diamond frame 7 is greater than the inner diameter of the pipe fitting 1.

[0048] When the connector is inserted into pipe fitting 1, the bottom edge of the top diamond frame 7 fits against the edge of the end of pipe fitting 1. At this time, the bottom cross section 6 is fully inserted into the interior of pipe fitting 1. The end of the cross section is 5-10mm away from the bottom of the inner wall of pipe fitting 1. This avoids excessive insertion that could cause blockage inside pipe fitting 1, and also ensures that the cross section provides uniform support to the inner wall of pipe fitting 1.

[0049] The depth to which the narrow neck 3 of fitting 1 is inserted into fitting 2 of fitting 2 matches the length of the straight section 5 in the middle. When inserted into place, the end of fitting 1 fits into the end of fitting 2, and the top diamond frame is completely inserted into the interior of fitting 2. Its two straight sections are in close contact with the inner wall of fitting 2. With the help of the elasticity of the steel wire, a radial clamping force of 20-50N is generated to achieve axial positioning and radial fixation of the two fittings.

[0050] The end of fitting 1 is set as a narrow neck 3, which serves as the insertion end of fitting 1 and is inserted into the inner wall of fitting 2. The surfaces of fitting 1 and fitting 2 are flush.

[0051] Using the above structure, the connector 4 is inserted into the pipe fitting 1 until the top diamond frame 7 contacts the end of the pipe fitting 1. Then, the pipe fitting 2 is inserted into the pipe fitting 1, so that the connector 4 enters the pipe fitting 2. The top diamond frame 7 and the bottom cross section 6 can support the inner walls of the pipe fitting 1 and the pipe fitting 2 respectively. The bottom cross section 6 uses the barb principle to improve the stability of the connector 4 installed in the pipe fitting 1.

[0052] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A pipe fitting structure that facilitates connection, characterized in that: It includes a first pipe fitting (1), a second pipe fitting (2) is inserted into the end of the first pipe fitting (1), and a connector (4) is inserted between the first pipe fitting (1) and the second pipe fitting (2) for supporting the inner walls of the first pipe fitting (1) and the second pipe fitting (2); The connector (4) consists of three parts: a top diamond-shaped frame (7), a middle straight rod section (5), and a bottom cross section (6).

2. The pipe fitting structure for easy connection according to claim 1, characterized in that: The top rhombus frame (7) is made of bent steel wire to form the outline of an arrowhead, and the corners of the top rhombus frame (7) are smooth arc transitions.

3. The pipe fitting structure for easy connection according to claim 2, characterized in that: The middle straight rod section (5) includes two parallel steel wire straight rods, which are formed by the two lower corners of the top diamond frame (7) extending vertically downwards.

4. The pipe fitting structure for easy connection according to claim 3, characterized in that: The bottom cross section (6) has an X-shaped structure and is formed by two straight steel wire rods bending in opposite directions and crossing each other.

5. The pipe fitting structure for easy connection according to claim 4, characterized in that: The width of the bottom cross section (6) is greater than that of the top diamond frame (7).

6. The pipe fitting structure for easy connection according to claim 5, characterized in that: The connector (4) is an integrally bent steel wire component.

7. The pipe fitting structure for easy connection according to claim 1, characterized in that: The two ends of the bottom cross section (6) are in contact with the inner wall of the pipe fitting (1).

8. The pipe fitting structure for easy connection according to claim 7, characterized in that: Both ends of the top diamond frame (7) are in contact with the inner wall of the second pipe (2).

9. The pipe fitting structure for easy connection according to claim 8, characterized in that: The width of the top rhomboid frame (7) is greater than the inner diameter of the pipe fitting (1).

10. The pipe fitting structure for easy connection according to claim 1, characterized in that: The end of the first pipe fitting (1) is configured with a narrow neck (3), which serves as the insertion end of the first pipe fitting (1) and is inserted into the inner wall of the second pipe fitting (2). The surfaces of the first pipe fitting (1) and the second pipe fitting (2) are flush.

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