Pipe joint

Abstract

The application relates to the technical field of pipeline connection, and provides a pipeline joint. The pipeline joint comprises a connecting pipe body and a stress resistance structure; the connecting pipe body is provided with a pipe cavity; the stress resistance structure comprises a plurality of reinforcing ribs which are arranged in a cross mode and protrude from the cavity wall of the pipe cavity; the plurality of reinforcing ribs jointly form a grid structure; and at least part of the reinforcing ribs are arranged in a slanting mode along the circumferential direction of the pipe cavity from one end of the connecting pipe body to the other end. The pipeline joint provided by the application improves the shearing resistance and the torsional resistance, thereby improving the overall strength.

Description

Technical Field

[0001] This application relates to the field of pipe connection technology, and in particular to a pipe fitting. Background Technology

[0002] Currently, one end of the water inlet pipe of water-using equipment is equipped with a pipe joint for direct connection to the user's angle valve. This pipe joint is usually made of plastic or thin metal, and is prone to stress concentration problems during use due to water inlet pulses or vibrations. Therefore, the strength of the pipe joint often depends on the overall wall thickness. If the wall thickness is too small, it is easy to crack and break due to stress concentration problems. However, if the wall thickness is too large, it will result in material waste and increased costs. Utility Model Content

[0003] Therefore, it is necessary to provide a pipe joint that improves shear and torsional resistance, thereby increasing overall strength, to address the aforementioned problems.

[0004] This application provides a pipe fitting, including a pipe body and a stress-resistant structure; the pipe body has a cavity; the stress-resistant structure includes a plurality of reinforcing ribs arranged crosswise and protruding from the cavity wall, the plurality of reinforcing ribs forming a grid structure, and at least some of the reinforcing ribs are inclined along the circumference of the cavity from one end of the pipe body to the other end.

[0005] Understandably, the use of multiple intersecting reinforcing ribs to form a grid structure enhances the strength of the connector body. Because at least some of the reinforcing ribs are angled, the shear force is decomposed and converted into axial tensile and compressive forces, significantly improving the overall torsional resistance of the connector body. Simultaneously, the grid structure formed by multiple reinforcing ribs can distribute the stress over a wider area, avoiding localized stress concentration, thereby significantly improving the joint's fatigue resistance and ultimate bearing capacity, further enhancing its shear and torsional resistance.

[0006] In some embodiments, the reinforcing ribs include longitudinal ribs and inclined ribs connected at an angle, with each of the longitudinal ribs arranged at intervals along the circumference of the cavity, and at least two intersecting inclined ribs provided between any two adjacent longitudinal ribs.

[0007] In some embodiments, the length of the longitudinal stiffener extends axially along the lumen.

[0008] In some embodiments, the angle between the longitudinal stiffener and the inclined stiffener is between 45° and 60°.

[0009] In some embodiments, the mesh structure includes multiple sub-mesh, at least some of which are arranged in a triangular pattern.

[0010] In some embodiments, each of the subgrids surrounds a cavity located in the wall of the lumen.

[0011] In some embodiments, each of the reinforcing ribs is integrally formed on the cavity wall of the lumen, and / or the mesh structure is arranged around the cavity wall of the lumen.

[0012] In some embodiments, the pipe body includes a first connecting section for connecting an inlet pipe and a second connecting section for connecting a valve body, the first connecting section being connected to the second connecting section; wherein the stress-resistant structure is disposed on the first connecting section and has a first length along the axial direction of the pipe cavity, the first length being the same as the axial length of the first connecting section.

[0013] In some embodiments, the pipe joint further includes a fixing sleeve and a fixing seat. The fixing sleeve is sleeved on the outside of the first connecting section, and an assembly gap for connecting the water inlet pipe is provided between the fixing sleeve and the first connecting section. The fixing seat is connected to the second connecting section and is used to connect the valve body.

[0014] In some embodiments, the pipe joint further includes a filter screen installed on the second connection section; and / or, the pipe joint further includes a first sealing ring installed on the mounting base and used for sealing engagement with the valve body. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A partial cross-sectional view of a pipe joint provided in an embodiment of this application; Figure 2 This is a partial schematic diagram of a pipe joint provided in an embodiment of this application; Figure 3 This is a schematic diagram of a stress-resistant structure in a pipe joint provided in an embodiment of this application; Figure 4 A schematic diagram of a stress-resistant structure in a pipe joint provided in another embodiment of this application; Figure 5 This is a schematic diagram of the stress-resistant structure in a pipe joint provided in another embodiment of this application; Figure 6 A schematic diagram of a pipe joint provided in an embodiment of this application; Figure 7 A cross-sectional view of a pipe joint provided in an embodiment of this application; Figure 8 This is a schematic diagram of the connection between a pipe joint and a water inlet pipe provided in one embodiment of this application.

[0017] Reference numerals: 100, pipe joint; 110, pipe body; 111, first connecting section; 112, second connecting section; 120, stress-resistant structure; 121, reinforcing rib; 130, fixing sleeve; 140, fixing seat; 141, force-applying protrusion; 150, first sealing ring; 160, filter screen; 200, water inlet pipe; 1001, assembly gap; 1101, pipe cavity; 1201, sub-grid; 1202, cavity; 1211, longitudinal rib; 1212, inclined rib. Detailed Implementation

[0018] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0019] It should be noted that when a component is referred to as being "fixed to," "set on," or "located on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0021] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0023] In related technologies, the inlet pipe is connected to the angle valve via a pipe joint. Due to factors such as installation location, angle, and distance, the pipe joint may bend or straighten under stress due to its limited length, making it highly susceptible to shear forces and torque. Especially under long-term pulse pressure, water hammer effect, or mechanical vibration, stress will repeatedly concentrate at certain fixed points on the pipe joint, leading to premature fatigue damage of the material, cracks that gradually propagate, and ultimately breakage and leakage. Although the overall strength of the pipe joint can be increased by increasing the wall thickness, this also results in bulkiness, inconvenient installation, and increased material costs.

[0024] Based on this, one embodiment of this application provides a pipe joint that not only improves overall strength and reduces the risk of damage caused by stress concentration, but also addresses the problems of bulky structure, material waste, and increased cost. Please refer to... Figure 1 , Figure 2 , Figure 3 and Figure 8 Specifically, the pipe joint 100 includes at least a connecting pipe body 110. One end of the connecting pipe body 110 is connected to the water inlet pipe 200 of the water-using equipment, and the other end is connected to the valve body of the aforementioned angle valve, thereby meeting the water demand of the water-using equipment. For example, a portion of the connecting pipe body 110 is inserted into one end of the water inlet pipe 200 to facilitate connection with the water inlet pipe 200. The connecting pipe body 110 is mostly arranged in a straight pipe configuration.

[0025] In practical use, vibrations from water-using equipment can be transmitted through the inlet pipe to the pipe joint, causing it to be subjected to a load perpendicular to the axial direction. This results in shear stress on the pipe joint's cross-section. Furthermore, if the pipe joint is not perfectly aligned with the inlet pipe during installation, it will experience continuous shear stress. Additionally, water flow pulses during transport create pressure fluctuations that also generate complex shear stress on the pipe joint's wall. All these shear stresses contribute to the vulnerability of the pipe joint.

[0026] Therefore, in this embodiment, the pipe joint 100 further includes a stress-resistant structure 120, which is disposed on the cavity wall of the pipe body 1101 of the connector body 110. The stress-resistant structure 120 includes a plurality of reinforcing ribs 121 arranged crosswise and protruding from the cavity wall of the cavity 1101. The plurality of reinforcing ribs 121 together form a grid structure, and at least some of the reinforcing ribs 121 are inclined from one end of the connector body 110 to the other end along the circumference of the cavity 1101. The cavity wall of the cavity 1101 is also the inner wall of the connector body 110.

[0027] In other words, in this embodiment, multiple intersecting reinforcing ribs 121 can be provided inwardly on the inner wall of the connector body 110, thereby enhancing the strength of the connector body 110. Since at least some of the reinforcing ribs 121 are inclined, that is, these reinforcing ribs 121 are arranged in a spiral shape on the cavity wall of the pipe cavity 1101, when the reinforcing ribs 121 are subjected to shear force, the inclined reinforcing ribs 121 can decompose the shear force and convert it into axial tensile and compressive forces, which greatly improves the overall torsional resistance of the connector body 110. Moreover, since multiple intersecting reinforcing ribs 121 together form a grid structure, the various reinforcing ribs 121 cooperate with each other to transfer the force to a wider area, avoiding stress concentration in local areas, thereby significantly improving fatigue resistance and bearing capacity. In addition, the grid structure divides the cavity wall of the pipe cavity 1101 into multiple small areas, which is equivalent to providing continuous and dense support points for the connector body 110, thereby greatly enhancing the connector body 110's resistance to external compression, enabling better cooperation with the water inlet pipe 200 and improving connection reliability.

[0028] Compared to related technologies that enhance strength by increasing wall thickness, this application utilizes inclined reinforcing ribs 121 and their grid structure to actively decompose and transform shear force without increasing the wall thickness of the pipe body 110, greatly enhancing structural strength and facilitating assembly.

[0029] Please see Figures 1 to 3In some embodiments, the reinforcing rib 121 includes longitudinal ribs 1211 and inclined ribs 1212, which are connected and arranged at an angle. The longitudinal ribs 1211 are arranged at intervals along the circumference of the cavity 1101, and at least two intersecting inclined ribs 1212 are provided between any two adjacent longitudinal ribs 1211. That is, the multiple reinforcing ribs 121 can be divided into two types: longitudinal ribs 1211 and inclined ribs 1212. At least the inclined ribs 1212 are inclined from one end of the connecting pipe body 110 to the other end along the circumference of the cavity 1101. The longitudinal ribs 1211 and inclined ribs 1212 cooperate with each other to diffuse local stress to a larger area and avoid local stress concentration; and the inclined ribs 1212 can decompose the shear force they bear into axial compressive strength to improve torsional resistance.

[0030] In some specific embodiments, the longitudinal stiffeners 1211 extend axially along the cavity 1101. When the connector body 110 is subjected to pure tensile or compressive stress, the longitudinal stiffeners 1211 can more effectively distribute and bear this load, reducing the risk of the connector body 110 being elongated or crushed. Simultaneously, when the connector body 110 is subjected to internal pressure, circumferential tensile stress is generated in the pipe wall. Multiple longitudinal stiffeners 1211 act as supports for the connector body 110, improving the stability of the grid structure and indirectly enhancing its resistance to circumferential stress, thus reducing the risk of grid structure instability.

[0031] like Figure 1 and Figure 3 As shown, in some embodiments, along the circumference of the cavity 1101, two intersecting inclined ribs 1212 are provided between any two adjacent longitudinal ribs 1211. The two longitudinal ribs 1211 are respectively the first longitudinal rib and the second longitudinal rib, and the two inclined ribs 1212 are respectively the first inclined rib and the second inclined rib. The end of the connector body 110 connected to the valve body is designated as the first end, and the end connected to the inlet pipe 200 is designated as the second end. One end of the first inclined rib is connected to the first end of the first longitudinal rib, and the other end of the first inclined rib is connected to the second end of the second longitudinal rib. One end of the second inclined rib is connected to the first end of the second longitudinal rib, and the other end of the second inclined rib is connected to the second end of the first longitudinal rib.

[0032] Of course, such as Figure 4 As shown, it is also possible that one end of the first inclined rib is connected to the first end of the first longitudinal rib, one end of the second inclined rib is connected to the second end of the first longitudinal rib, and the end where the first and second inclined ribs intersect is connected to the middle or central region of the second longitudinal rib.

[0033] like Figure 5As shown, alternatively, along the circumference of the lumen 1101, four inclined ribs 1212 are provided between any two adjacent longitudinal ribs 1211, and the four inclined ribs 1212 are arranged in a zigzag pattern. Of course, it is also possible that five, six, or more inclined ribs 1212 are arranged in a zigzag pattern between any two adjacent longitudinal ribs 1211. This is only an example for illustration.

[0034] Alternatively, the longitudinal rib 1211 can also be inclined on the cavity wall of the lumen 1101, with the inclination direction of the longitudinal rib 1211 opposite to that of the inclined rib 1212. This is only an example.

[0035] Please see Figure 1 , Figure 3 , Figure 4 and Figure 5 In some embodiments, the angle between the longitudinal stiffener 1211 and the inclined stiffener 1212 is between 45° and 60°. That is, based on the axial extension of the longitudinal stiffener 1211, the angle between the inclined stiffener 1212 and the longitudinal stiffener 1211 is between 45° and 60°. This arrangement allows the stiffener 121 to more effectively convert and decompose the axial force and circumferential force borne by the nozzle body 110, making the nozzle body 110 a highly efficient space truss structure as a whole. This avoids the problem of insufficient axial impact resistance due to an angle less than 45° and reduces the risk of weakened shear resistance due to an angle greater than 60°.

[0036] In some specific embodiments, the included angle between the longitudinal stiffener 1211 and the inclined stiffener 1212 is 45°, 47.5°, 50°, 52.5°, 55°, 57.5°, 58°, 60°, etc.

[0037] Please continue reading. Figure 1 , Figure 3 , Figure 4 and Figure 5 In some embodiments, the mesh structure includes multiple sub-mesh 1201, which are the aforementioned small regions, and at least some of the sub-mesh 1201 are arranged in a triangular pattern. That is, the stability of the triangle is used to enhance the stability of the mesh structure and improve its stress resistance; moreover, the triangular sub-mesh 1201 provides the most direct and shortest stress transmission path, further reducing the risk of local stress accumulation.

[0038] Furthermore, each subgrid 1201 is surrounded by a cavity 1202 located in the cavity wall of the pipe 1101. Understandably, due to the protrusion of the reinforcing rib 121 relative to the cavity wall, multiple spaced cavities 1202 are formed in the cavity wall, thereby effectively absorbing and attenuating the vibration and noise generated by the water flow impact through these spaced cavities 1202.

[0039] In some embodiments, each reinforcing rib 121 is integrally formed into the cavity wall of the pipe cavity 1101. This arrangement enhances the connection reliability of each reinforcing rib 121 relative to the pipe body 110, improves the durability of the pipe joint 100, reduces the risk of damage caused by frequent vibration or water flow impact, and thus extends the service life of the pipe joint 100. At the same time, the integral forming design facilitates manufacturing.

[0040] Furthermore, a grid structure formed by multiple reinforcing ribs 121 is arranged around the cavity wall of the tube 1101. That is, the grid structure is arranged in a 360° surround around the cavity wall of the tube 1101, thereby providing continuous and uniform support for the entire tube wall, increasing the stress resistance range. Stress from any direction can be effectively borne and dispersed by the opposing and adjacent reinforcing ribs 121, avoiding the existence of weak areas in any direction.

[0041] Please see Figure 1 , Figure 3 and Figure 8 In some embodiments, the connector body 110 includes a first connecting section 111 and a second connecting section 112, which are connected together. The first connecting section 111 is used to connect to the water inlet pipe 200, and the second connecting section 112 is used to connect to the valve body. The aforementioned stress-resistant structure 120 is disposed on the inner wall of the first connecting section 111. The stress-resistant structure 120 has a first length along the axial direction of the lumen 1101, and the first length is the same as the axial length of the first connecting section 111.

[0042] Understandably, since the stress distribution in the connector body 110 is not uniform, the maximum stress is usually concentrated in the central region of the connector body 110. Therefore, the aforementioned mesh structure is provided at least in the central region of the connector body 110. However, if the first length of the mesh structure is less than the axial length of the first connecting segment 111, stress concentration may occur again at both ends of the mesh structure in the axial direction, which is equivalent to transferring the stress-weak part of the connector body 110 to the end. Therefore, the first length of the mesh structure in the axial direction needs to be the same as the axial length of the first connecting segment 111, so that the first connecting segment 111 has strong stress resistance at all points along its axial length.

[0043] The diameter of the second connecting segment 112 is larger than the diameter of the first connecting segment 111.

[0044] Please see Figure 1 , Figure 6 , Figure 7 and Figure 8In some embodiments, the pipe joint 100 further includes a fixing sleeve 130, which is sleeved on the outside of the first connecting section 111. An assembly gap 1001 for connecting the water inlet pipe 200 is provided between the fixing sleeve 130 and the first connecting section 111. The fixing sleeve 130 can be made of copper. One end of the fixing sleeve 130 is fixed to the end face between the second connecting end and the first connecting section 111, for example, by riveting. The water inlet pipe 200 is inserted into the assembly gap 1001, the first connecting section 111 is inserted into the water inlet pipe 200, and the fixing sleeve 130 is clamped against the outer wall of the water inlet pipe 200. The outer wall of the first connecting section 111 also has a limiting structure, which engages with the inner wall of the water inlet pipe 200 to improve connection reliability. For example, the limiting structure can also be multiple limiting protrusions spaced apart along the axial direction of the pipe cavity 1101. Meanwhile, the outer wall of the first connecting section 111 is also provided with a sealing groove, and the second sealing ring can be fitted into the sealing groove and seal with the inner wall of the water inlet pipe 200 to ensure the sealing of the connection. At least two sealing grooves can be provided, corresponding to at least two second sealing rings, to improve the sealing effect. The end of the first connecting section 111 facing away from the second connecting section 112 is tapered, facilitating insertion into the water inlet pipe 200.

[0045] Furthermore, the pipe fitting 100 also includes a fixing seat 140, which is connected to the second connecting section 112 and used to connect the valve body. The fixing seat 140 can be a nut seat. Specifically, the outer wall of the second connecting section 112 is provided with external threads, and the fixing seat 140 is provided with a through mounting hole. The wall of the mounting hole is provided with internal threads, which mate with the external threads to fix the fixing seat 140 to the second connecting section 112. At the same time, the internal threads of the fixing seat 140 mate with the external threads on the valve body to fix the fixing seat 140 to the valve body.

[0046] like Figure 6 As shown, the outer wall of the fixed base 140 is provided with a plurality of force-applying protrusions 141 arranged at intervals along its circumference, which facilitates operation.

[0047] Please see Figure 1 , Figure 6 and Figure 7 Furthermore, the pipe joint 100 also includes a first sealing ring 150, which is installed within the fixing seat 140 for sealing with the valve body to ensure reliable connection between the fixing seat 140 and the valve body. In actual use, the pipe joint 100 also includes a filter screen 160, which is located within the second connecting section 112 for filtering water flow. The filter screen 160 includes a columnar filter section and a planar filter section. The planar filter section is connected to the end of the columnar filter section facing the first connecting section 111, and the planar filter section is supported at the end face of the first connecting section 111 facing the second connecting section 112.

[0048] The smart appliance containing the pipe connector 100 has a smart voice control module, which includes a controller, a voice receiving module, and a voice parsing module. The voice receiving module receives user commands, and the voice parsing module parses the commands. Based on the parsed commands, the controller controls the smart appliance to perform corresponding operations, thereby achieving intelligent control of the smart appliance and improving the user experience. This smart appliance is the aforementioned water-using equipment, which can be a dishwasher; this is merely an example.

[0049] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A pipe fitting, characterized in that, include: The connector body (110) has a lumen (1101). The stress-resistant structure (120) includes a plurality of reinforcing ribs (121) arranged crosswise and protruding from the cavity wall of the lumen (1101). The plurality of reinforcing ribs (121) together form a grid structure. At least some of the reinforcing ribs (121) are inclined along the circumference of the lumen (1101) from one end of the connecting pipe body (110) to the other end.

2. The pipe joint according to claim 1, characterized in that, The reinforcing rib (121) includes longitudinal ribs (1211) and inclined ribs (1212), which are connected and set at an angle. Each of the longitudinal ribs (1211) is arranged at intervals along the circumference of the cavity (1101), and at least two intersecting inclined ribs (1212) are provided between any two adjacent longitudinal ribs (1211).

3. The pipe joint according to claim 2, characterized in that, The length of the longitudinal rib (1211) extends along the axial direction of the cavity (1101).

4. The pipe joint according to claim 2, characterized in that, The included angle between the longitudinal stiffener (1211) and the inclined stiffener (1212) is between 45° and 60°.

5. The pipe joint according to claim 1, characterized in that, The mesh structure includes multiple sub-mesh (1201), at least some of which are arranged in a triangular pattern.

6. The pipe joint according to claim 5, characterized in that, Each of the subgrids (1201) is surrounded by a cavity (1202) located in the wall of the lumen (1101).

7. The pipe joint according to claim 1, characterized in that, Each of the reinforcing ribs (121) is integrally formed on the cavity wall of the lumen (1101), and / or the mesh structure is arranged around the cavity wall of the lumen (1101).

8. The pipe joint according to any one of claims 1 to 7, characterized in that, The connector body (110) includes a first connecting section (111) for connecting the water inlet pipe (200) and a second connecting section (112) for connecting the valve body, wherein the first connecting section (111) and the second connecting section (112) are connected. The stress-resistant structure (120) is disposed on the first connecting section (111) and has a first length along the axial direction of the lumen (1101), the first length being the same as the axial length of the connecting section.

9. The pipe joint according to claim 8, characterized in that, The pipe joint (100) further includes a fixing sleeve (130) and a fixing seat (140). The fixing sleeve (130) is sleeved on the outside of the first connecting section (111). There is an assembly gap (1001) between the fixing sleeve (130) and the first connecting section (111) for connecting the water inlet pipe (200). The fixing seat (140) is connected to the second connecting section (112) and is used to connect the valve body.

10. The pipe joint according to claim 9, characterized in that, The pipe fitting (100) further includes a filter screen (160) installed on the second connecting section (112); and / or, The pipe joint (100) also includes a first sealing ring (150), which is installed on the fixed seat (140) and used to seal with the valve body.

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