Anti-skid structure of clamping and pressing pipe fitting

Abstract

The utility model provides an anti-skidding structure of a clamping and pressing pipe fitting, which comprises a pipe fitting main body and a connecting pipe connected with the pipe fitting main body in a clamping and pressing way, the end part of the pipe fitting main body is a connecting end, the connecting end is provided with a sealing structure and a limiting structure, the limiting structure comprises a limiting ring with an annular structure, and the inner diameter of the limiting ring is matched with that of the connecting pipe. A mounting groove is formed in the inner wall of the connecting end, the limiting ring is arranged in the mounting groove, and after the connecting pipe is inserted into the pipe fitting body, the pipe fitting body is extruded through the calipers, so that the limiting ring is embedded in the outer wall of the connecting pipe. According to the utility model, the clamping and pressing connection structure is optimized, and the limiting ring is added, so that the connection between the pipe fitting and the connecting pipe is firmer. The connecting pipe is not prone to sliding after being clamped and pressed, it is guaranteed that the connecting strength meets or even exceeds relevant standard requirements, and the overall safety of a pipeline system is improved. The anti-skidding connecting structure can be simultaneously suitable for a flexible pipe and a hard pipe, and has a wide market application prospect.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline connection, in particular to an anti-slip structure for a compression pipe fitting. Background Art

[0002] During the installation and use of pipeline systems, the anti-slip performance of compression fittings is of vital importance. Existing compression fittings are prone to sliding in certain specific environments, such as when they are humid, oily, or impacted by external forces. This may cause the pipe connection to become loose, affecting the sealing performance and connection strength of the pipeline system, and even causing safety problems such as leakage. Traditional compression fittings are usually precisely compressed with hard pipes (such as thin-walled stainless steel pipes, etc.) through specific structures. This connection relies on a close fit between the fittings and the hard pipe, including matching in terms of pipe diameter, wall thickness, etc. However, from a structural design point of view, if you want to adapt to both soft pipes and hard pipes at the same time, a special structural design is required to meet the differences in physical properties of different pipes. Compression fittings do not give enough consideration to the anti-slip function in their structural design, and cannot meet increasingly complex usage scenarios and higher safety requirements. Utility Model Content

[0003] The technical problem to be solved by the present invention is to provide an anti-slip structure for a compression fitting, which can effectively enhance the anti-slip performance of the compression fitting during installation and use, prevent connection problems caused by sliding of the fitting, and improve the reliability, safety and extensiveness of the pipeline system.

[0004] The utility model is achieved in this way:

[0005] The utility model provides an anti-slip structure for a compressed pipe fitting, comprising a pipe fitting main body and a connecting pipe compressed and connected to the pipe fitting main body, the end of the pipe fitting main body being a connecting end, the connecting end being provided with a sealing structure and a limiting structure, the limiting structure comprising a limiting ring in an annular structure, the inner diameter of the limiting ring being matched with the connecting pipe, the inner wall of the connecting end being provided with an installation groove, the limiting ring being arranged in the installation groove, and after the connecting pipe is inserted into the interior of the pipe fitting main body, the pipe fitting main body is squeezed by calipers so that the limiting ring is embedded in the outer wall of the connecting pipe.

[0006] Furthermore, the inner diameter of the limiting ring is smaller than the outer diameter of the connecting pipe, and the limiting ring is provided with an opening, which extends from the outer wall of the limiting ring to the inner wall of the limiting ring.

[0007] Furthermore, the inner and outer walls of the limiting ring are both smooth surfaces.

[0008] Furthermore, the hardness of the limiting ring is less than the hardness of the pipe body, and the hardness of the limiting ring is greater than the hardness of the connecting pipe.

[0009] Furthermore, the outer wall of the connecting end is provided with a first bulge, and the mounting groove is a first arc-shaped groove, which is provided at a position corresponding to the first bulge.

[0010] Furthermore, the mounting groove is a first groove provided on the inner wall of the connecting end, and the cross section of the first groove is U-shaped.

[0011] Furthermore, the width of the first groove is 0.5-1.5 mm, and the depth is 0.5 mm.

[0012] Furthermore, the outer wall of the limiting ring is a smooth circular surface, and the inner wall is provided with a plurality of tooth-shaped protrusions.

[0013] Furthermore, the mounting groove is a second groove provided on the inner wall of the connecting end, the cross section of the second groove is U-shaped, the width of the second groove is 0.5-1.5 mm, and the depth is 0.5 mm.

[0014] Furthermore, the sealing structure includes a sealing ring, the outer wall of the connecting end is provided with a second bulge, the inner wall of the connecting end is provided with a second arc-shaped groove, the second arc-shaped groove is provided at a position corresponding to the second bulge, and the sealing ring is installed in the installation groove.

[0015] The advantages of this utility model are that it optimizes the compression connection structure and adds a stop ring to make the connection between the pipe fitting and the connecting pipe more secure. The connecting pipe is not easy to slide after compression, ensuring that the connection strength meets or even exceeds the requirements of relevant standards, thereby improving the overall safety of the pipeline system.

[0016] The sealing ring is installed in the second arc-shaped groove. During actual use, the second bulge is squeezed with calipers, allowing the sealing ring to fit tightly against the pipe wall, achieving a sealing effect. This also makes the sealing ring non-slip, ensuring its position within the pipe fitting is stable and preventing slippage from affecting the sealing effect. This ensures that the pipeline system maintains good sealing performance during long-term use, reduces the risk of leakage, and improves the reliability of the pipeline system.

[0017] The anti-slip connection structure of the utility model is applicable to both soft pipes (such as copper pipes) and hard pipes (such as thin-walled stainless steel pipes), and has broad market application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the anti-slip structure of the clamping pipe fitting of the utility model Figure 1 .

[0020] Figure 2 for Figure 1 Middle AA section view.

[0021] Figure 3 This is a schematic diagram of the limit ring structure of the utility model Figure 1 .

[0022] Figure 4 This is a structural schematic diagram of a specific embodiment of the anti-slip structure of the compression pipe fitting of the present invention.

[0023] Figure 5 This is a schematic diagram of the anti-slip structure of the clamping pipe fitting of the utility model Figure 2 .

[0024] Figure 6 for Figure 5 Middle BB cross-section view.

[0025] Figure 7 This is a schematic diagram of the limit ring structure of the utility model Figure 2 .

[0026] Figure 8 This is a structural schematic diagram of a second specific embodiment of the anti-slip structure for a compression pipe fitting of the present invention.

[0027] Figure 9 This is a schematic diagram of the anti-slip structure of the clamping pipe fitting of the utility model Figure 3 .

[0028] Figure 10 for Figure 9 Middle CC section view.

[0029] Figure 11 This is a schematic diagram of the limit ring structure of the utility model Figure 3 .

[0030] Figure 12 This is a structural schematic diagram of a third specific embodiment of the anti-slip structure for a compression pipe fitting of the present invention.

[0031] Description of the numbers in the figure:

[0032] 1. Pipe body; 11. Connecting end; 111. First bulge; 112. First arc-shaped groove; 113. First groove; 114. Second groove; 115. Second bulge; 116. Second arc-shaped groove; 2. Connecting pipe; 3. Sealing structure; 31. Sealing ring; 4. Limiting structure; 41. Limiting ring; 411. Opening; 412. Tooth-like protrusion; 5. Caliper. DETAILED DESCRIPTION

[0033] For example 1, please refer to Figures 1 to 4The utility model provides an anti-slip structure for a pressed pipe fitting, comprising a pipe fitting body 1 and a connecting pipe 2 press-connected to the pipe fitting body 1. In this embodiment, the pipe fitting body 1 can be any other pipe fitting product such as a straight pipe, an elbow or a tee. The end of the pipe fitting body 1 is a connecting end 11, and the connecting end 11 is provided with a sealing structure 3 and a limiting structure 4. The limiting structure 4 includes a limiting ring 41 with an annular structure. The inner diameter of the limiting ring 41 matches the connecting pipe 2. The inner wall of the connecting end 11 is provided with a mounting groove, and the limiting ring 41 is arranged in the mounting groove. After the connecting pipe 2 is inserted into the interior of the pipe fitting body 1, the pipe fitting body 1 is squeezed by the caliper 5 so that the limiting ring 41 is embedded in the outer wall of the connecting pipe 2.

[0034] Specifically, the inner diameter of the retaining ring 41 is smaller than the outer diameter of the connecting tube 2. The retaining ring 41 is provided with an opening 411 extending from the outer wall of the retaining ring 41 to the inner wall of the retaining ring 41. When the connecting tube 2 is inserted, the opening 411 can open, facilitating insertion of the connecting tube 2. When the calipers squeeze the connecting tube 2, the retaining ring 41 has room to contract, allowing it to press into the outer wall of the connecting tube 2, thereby retaining the connecting tube 2 in place.

[0035] Specifically, the inner and outer walls of the limiting ring 41 are both smooth surfaces.

[0036] Specifically, the hardness of the limiting ring 41 is less than the hardness of the pipe body 1 , and the hardness of the limiting ring 41 is greater than the hardness of the connecting pipe 2 .

[0037] Specifically, a first bulge 111 is provided on the outer wall of the connecting end 11 , and the mounting groove is a first arc-shaped groove 112 . The first arc-shaped groove 112 is provided at a position corresponding to the first bulge 111 .

[0038] Specifically, the sealing structure 3 includes a sealing ring 31, the outer wall of the connecting end 11 is provided with a second bulge 115, the inner wall of the connecting end 11 is provided with a second arc-shaped groove 116, the second arc-shaped groove 116 is provided at a position corresponding to the second bulge 115, and the sealing ring 31 is installed in the installation groove.

[0039] During use, the connecting tube 2 is inserted into the connecting end 11 of the pipe body 1. Since the limiting ring 41 has an opening 411, the setting of the limiting ring 41 will not hinder the insertion of the connecting tube 2. After the connecting tube 2 is inserted into place, the pipe body 1 is squeezed with a caliper. The clamping head of the caliper has two squeezing parts, and the two squeezing parts correspond to the sealing structure 3 and the limiting structure 4 respectively. During the clamping connection, one squeezing part 51 squeezes the second bulge 115, so that the sealing ring 31 is tightly attached to the outer wall of the connecting tube 2, and the other squeezing part 51 squeezes the first bulge 111, causing the limiting ring 41 to shrink (the inner diameter of the limiting ring 41 is further reduced). Since the hardness of the limiting ring 41 is greater than the hardness of the connecting tube 2, the limiting ring 41 can be pressed into the connecting tube 2 (even if the corresponding parts of the connecting tube 2 and the limiting ring 41 are concave), thereby playing a limiting role.

[0040] For example 2, please refer to Figures 5 to 8 The utility model provides an anti-slip structure for a pressed pipe fitting, comprising a pipe fitting main body 1 and a connecting pipe 2 press-connected to the pipe fitting main body 1. In this embodiment, the pipe fitting main body 1 can be any other pipe fitting product such as a straight pipe, an elbow or a tee. The end of the pipe fitting main body 1 is a connecting end 11, and the connecting end 11 is provided with a sealing structure 3 and a limiting structure 4. The limiting structure 4 includes a limiting ring 41 with an annular structure. The inner diameter of the limiting ring 41 matches the connecting pipe 2. The inner wall of the connecting end 11 is provided with a mounting groove, and the limiting ring 41 is arranged in the mounting groove. After the connecting pipe 2 is inserted into the interior of the pipe fitting main body 1, the pipe fitting main body 1 is squeezed by calipers so that the limiting ring 41 is embedded in the outer wall of the connecting pipe 2.

[0041] Specifically, the inner diameter of the retaining ring 41 is smaller than the outer diameter of the connecting tube 2. The retaining ring 41 is provided with an opening 411 extending from the outer wall of the retaining ring 41 to the inner wall of the retaining ring 41. When the connecting tube 2 is inserted, the opening 411 can open, facilitating insertion of the connecting tube 2. When the calipers squeeze the connecting tube 2, the retaining ring 41 has room to contract, allowing it to press into the outer wall of the connecting tube 2, thereby retaining the connecting tube 2 in place.

[0042] Specifically, the inner and outer walls of the limiting ring 41 are both smooth surfaces.

[0043] Specifically, the hardness of the limiting ring 41 is less than the hardness of the pipe body 1 , and the hardness of the limiting ring 41 is greater than the hardness of the connecting pipe 2 .

[0044] Specifically, the mounting groove is a first groove 113 provided on the inner wall of the connecting end 11 , and the cross section of the first groove 113 is U-shaped. In this embodiment, the outer wall of the connecting end 11 has only one second bulge 115 .

[0045] Specifically, the width of the first groove 113 is 0.5-1.5 mm and the depth is 0.5 mm. The width of the first groove 113 matches the width of the limiting ring 41. Even under outward pulling force, the limiting ring 41 remains fixed, thereby better preventing the connecting pipe 2 from falling off.

[0046] Specifically, the sealing structure 3 includes a sealing ring 31, the outer wall of the connecting end 11 is provided with a second bulge 115, the inner wall of the connecting end 11 is provided with a second arc-shaped groove 116, the second arc-shaped groove 116 is provided at a position corresponding to the second bulge 115, and the sealing ring 31 is installed in the installation groove.

[0047] During use, the connecting tube 2 is inserted into the connecting end 11 of the pipe body 1. Since the limiting ring 41 has an opening 411, the setting of the limiting ring 41 will not hinder the insertion of the connecting tube 2. After the connecting tube 2 is inserted into place, the pipe body 1 is squeezed with a caliper. The clamping head of the caliper has two squeezing parts, and the two squeezing parts correspond to the sealing structure 3 and the limiting structure 4 respectively. During the clamping connection, one squeezing part 51 squeezes the second bulge 115, so that the sealing ring 31 is tightly attached to the outer wall of the connecting tube 2. The other squeezing part 51 squeezes the outer wall of the connecting end 11 corresponding to the first groove 113, causing the limiting ring 41 to shrink (the inner diameter of the limiting ring 41 is further reduced). Since the hardness of the limiting ring 41 is greater than that of the connecting tube 2, the limiting ring 41 can be pressed into the connecting tube 2 (even if the corresponding parts of the connecting tube 2 and the limiting ring 41 are concave), thereby playing a limiting role.

[0048] For example three, please refer to Figures 9 to 12 The utility model provides an anti-slip structure for a pressed pipe fitting, comprising a pipe fitting main body 1 and a connecting pipe 2 press-connected to the pipe fitting main body 1. In this embodiment, the pipe fitting main body 1 can be any other pipe fitting product such as a straight pipe, an elbow or a tee. The end of the pipe fitting main body 1 is a connecting end 11, and the connecting end 11 is provided with a sealing structure 3 and a limiting structure 4. The limiting structure 4 includes a limiting ring 41 with an annular structure. The inner diameter of the limiting ring 41 matches the connecting pipe 2. The inner wall of the connecting end 11 is provided with a mounting groove, and the limiting ring 41 is arranged in the mounting groove. After the connecting pipe 2 is inserted into the interior of the pipe fitting main body 1, the pipe fitting main body 1 is squeezed by calipers so that the limiting ring 41 is embedded in the outer wall of the connecting pipe 2.

[0049] Specifically, the inner diameter of the retaining ring 41 is smaller than the outer diameter of the connecting tube 2. The retaining ring 41 is provided with an opening 411 extending from the outer wall of the retaining ring 41 to the inner wall of the retaining ring 41. When the connecting tube 2 is inserted, the opening 411 can open, facilitating insertion of the connecting tube 2. When the calipers squeeze the connecting tube 2, the retaining ring 41 has room to contract, allowing it to press into the outer wall of the connecting tube 2, thereby retaining the connecting tube 2 in place.

[0050] Specifically, the hardness of the limiting ring 41 is less than the hardness of the pipe body 1 , and the hardness of the limiting ring 41 is greater than the hardness of the connecting pipe 2 .

[0051] Specifically, the outer wall of the limiting ring 41 is a smooth circular surface, and the inner wall is provided with a plurality of tooth-shaped protrusions 412 .

[0052] Specifically, the mounting groove is a second groove 114 provided on the inner wall of the connecting end 11. The second groove 114 has a U-shaped cross-section, a width of 0.5-1.5 mm, and a depth of 0.5 mm. The width of the second groove 114 matches the width of the retaining ring 41. Even under outward pulling force, the retaining ring 41 remains fixed, thereby better preventing the connecting tube 2 from falling off.

[0053] Specifically, the sealing structure 3 includes a sealing ring 31, the outer wall of the connecting end 11 is provided with a second bulge 115, the inner wall of the connecting end 11 is provided with a second arc-shaped groove 116, the second arc-shaped groove 116 is provided at a position corresponding to the second bulge 115, and the sealing ring 31 is installed in the installation groove.

[0054] During use, the connecting tube 2 is inserted into the connecting end 11 of the pipe body 1. Since there is an opening 411 on the limiting ring 41, the setting of the limiting ring 41 will not hinder the insertion of the connecting tube 2. After the connecting tube 2 is inserted into place, the pipe body 1 is squeezed with a caliper. The clamping head of the caliper has two squeezing parts, and the two squeezing parts correspond to the sealing structure 3 and the limiting structure 4 respectively. During the clamping connection, one of the squeezing parts 51 squeezes the second bulge 115, so that the sealing ring 31 is tightly attached to the outer wall of the connecting tube 2, and the other squeezing part 51 squeezes the outer wall of the connecting end 11 corresponding to the second groove 114, so that the limiting ring 41 shrinks (the inner diameter of the limiting ring 41 is further reduced), so that the tooth-shaped protrusion on the inner side of the limiting ring 41 is embedded in the outer wall of the connecting tube 2, playing a limiting role.

[0055] The present invention optimizes the compression connection structure and adds a stop ring 41 to make the connection between the pipe fitting and the connecting pipe 2 more secure. The connecting pipe 2 is not easy to slide after compression, ensuring that the connection strength meets or even exceeds the relevant standard requirements, thereby improving the overall safety of the pipeline system.

[0056] The sealing ring 31 is installed in the second arc-shaped groove 116. During actual use, the second bulge 115 is squeezed with calipers, so that the sealing ring 31 can fit tightly against the pipe wall, achieving a sealing effect. The sealing ring 31 also has anti-slip properties, ensuring its position in the pipe is stable and preventing slippage from affecting the sealing effect. This ensures that the pipeline system can maintain good sealing performance during long-term use, reduces the risk of leakage, and improves the reliability of the pipeline system.

[0057] The anti-slip connection structure of the utility model is applicable to both soft pipes (such as copper pipes) and hard pipes (such as thin-walled stainless steel pipes), and has broad market application prospects.

[0058] Although the specific implementation methods of the present invention are described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A compression pipe anti-slip structure, comprising a pipe body and a connecting pipe press-connected to the pipe body, characterized in that: The end of the pipe fitting body is a connecting end, and the connecting end is provided with a sealing structure and a limiting structure. The limiting structure includes a limiting ring with an annular structure, and the inner diameter of the limiting ring matches the connecting pipe. The inner wall of the connecting end is provided with a mounting groove, and the limiting ring is arranged in the mounting groove. After the connecting pipe is inserted into the interior of the pipe fitting body, the pipe fitting body is squeezed by calipers so that the limiting ring is embedded in the outer wall of the connecting pipe.

2. The anti-slip structure for a compression pipe fitting according to claim 1, characterized in that: The inner diameter of the limiting ring is smaller than the outer diameter of the connecting pipe. The limiting ring is provided with an opening, and the opening extends from the outer wall of the limiting ring to the inner wall of the limiting ring.

3. The anti-slip structure for a compression pipe fitting according to claim 2, characterized in that: The inner and outer walls of the limiting ring are both smooth surfaces.

4. The anti-slip structure for a compression pipe fitting according to any one of claims 1 to 3, characterized in that: The hardness of the limiting ring is less than the hardness of the pipe body, and the hardness of the limiting ring is greater than the hardness of the connecting pipe.

5. The anti-slip structure for a compression pipe fitting according to claim 4, characterized in that: The outer wall of the connecting end is provided with a first bulge, and the mounting groove is a first arc-shaped groove, which is provided at a position corresponding to the first bulge.

6. The anti-slip structure for a compression pipe fitting according to claim 4, characterized in that: The mounting groove is a first groove provided on the inner wall of the connecting end, and the cross section of the first groove is U-shaped.

7. The anti-slip structure for a compression pipe fitting according to claim 6, characterized in that: The first groove has a width of 0.5-1.5 mm and a depth of 0.5 mm.

8. The anti-slip structure for a compression pipe fitting according to claim 1 or 2, characterized in that: The outer wall of the limiting ring is a smooth circular surface, and the inner wall is provided with a plurality of tooth-shaped protrusions.

9. The anti-slip structure for a compression pipe fitting according to claim 8, characterized in that: The mounting groove is a second groove provided on the inner wall of the connecting end. The cross section of the second groove is U-shaped. The width of the second groove is 0.5-1.5 mm and the depth is 0.5 mm.

10. The anti-slip structure for a compression pipe fitting according to claim 1, characterized in that: The sealing structure includes a sealing ring, a second bulge is provided on the outer wall of the connecting end, a second arc-shaped groove is provided on the inner wall of the connecting end, the second arc-shaped groove is provided at a position corresponding to the second bulge, and the sealing ring is installed in the installation groove.

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