Clamp-type connecting pipe fitting and pipe connection system

Abstract

The present application relates to the technical field of pipe connection. Provided are a clamp-type connecting pipe fitting and a pipe connection system. By means of configuring a positioning retaining ring to be sleeved on the outer surface of each core portion, the structure of the core portion can be protected, thereby preventing the core portion from being damaged by a collision; moreover, the core portion can be accurately positioned, thereby preventing misalignment during pressure connection and ensuring the tightness of a connection between a pipe and the clamp-type connecting pipe fitting. A clamp is sleeved in an annular mounting space formed by a first annular portion, a second annular portion and a connecting portion of the positioning retaining ring, and the pipe is accommodated in a gap between the second annular portion and the core portion, such that the clamp is not in direct contact with the pipe. A plurality of open slots in the second annular portion enable the second annular portion to undergo inward tightening deformation after being subjected to a tight-pressing force of the clamp, thereby transmitting the tight-pressing force to the pipe, such that the pipe and the pipe fitting are pressed tightly, thereby achieving a tight connection. The process achieves more uniform pressure connection, thereby ensuring the tightness of the connection between the pipe and the clamp-type connecting pipe fitting.

Description

Hoop connection pipe fitting and pipe connection system

[0001] Cross Reference to Related Applications

[0002] This application claims priority to the Chinese patent application No. 202422409809.1, filed on September 30, 2024, and entitled “Hoop connection pipe fitting and pipe connection system”, the content of the above application is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application relates to the technical field of pipe connection, in particular, to a hoop connection pipe fitting and a pipe connection system. BACKGROUND

[0004] The connection pipe fitting is one of the common structures in the field of pipe connection, and there are many types of connection pipe fittings, which can be selected according to different pipes and different use requirements. The hoop connection pipe fitting is widely used in many fields such as fire water system, air conditioning cold and hot water system, water supply system, petroleum and chemical pipeline system, thermal power and military pipeline system, and sewage treatment pipeline system, because it has the advantages of fast construction speed, good system stability, convenient maintenance, and good sealing performance.

[0005] However, in the installation process of the existing hoop connection pipe fitting, the core part of the pipe fitting body is blocked by the pipe, hoop and other structures installed on its surface, so it is difficult to observe whether the position of the hoop crimping corresponds to the core part. If the hoop does not completely correspond to the core part, the crimping will not be firm, and there is a risk of disconnection or material leakage at the connection between the pipe and the connection pipe fitting. In addition, directly crimping the hoop with the pipe makes it difficult to evenly crimp the pipe and the core part, and there is also a risk of water leakage during long-term use. At the same time, the surface of the core part is exposed during transportation or storage of the hoop connection pipe fitting after production, which is easy to cause scratches on the surface of the core part and also affects the final crimping effect.

[0006] In view of this, the present application is proposed.

[0007] SUMMARY

[0008] The purpose of the present application is to provide a hoop connection pipe fitting and a pipe connection system, which can protect the core part of the pipe fitting body, and the crimping process of the pipe and the pipe fitting is more uniform, and the crimping stability is improved.

[0009] The embodiments of the present application are implemented as follows:

[0010] In a first aspect, the present application provides a hoop connection pipe fitting, comprising a hoop, a pipe fitting body and a positioning stop ring.

[0011] The pipe body comprises a protruding part and a core part, the protruding part is located between two adjacent core parts, the outer surface of each core part is sleeved with a positioning stop ring, and the clamp is fixed with the positioning stop ring.

[0012] Each core part is provided with a first positioning groove at one end close to the protruding part, the positioning stop ring comprises a first annular part, a second annular part and a connecting part, the first annular part is sleeved on the outer surface of the second annular part, and one end of the first annular part and the second annular part is connected through the connecting part, so that the first annular part, the second annular part and the connecting part form an annular mounting groove, and the clamp is accommodated in the annular mounting groove.

[0013] One end of the second annular part away from the connecting part protrudes from the first annular part, and is fixedly connected with the first positioning groove on the core part; and the one end of the second annular part away from the connecting part is also provided with at least two opening grooves extending in the direction of the connecting part.

[0014] In an optional embodiment, the plurality of opening grooves are uniformly and spacedly arranged at the one end of the second annular part away from the connecting part.

[0015] In an optional embodiment, the number of the opening grooves is 4-8.

[0016] In an optional embodiment, an end face of the one end of the second annular part away from the connecting part is provided with a first positioning protrusion extending in the direction away from the annular mounting groove, and the first positioning protrusion is fixedly connected with the first positioning groove.

[0017] In an optional embodiment, the outer surface of the clamp is provided with a limiting protrusion, the first annular part is provided with a limiting clamping groove, and the limiting protrusion is fixedly connected with the limiting clamping groove.

[0018] In an optional embodiment, the one end of the first annular part away from the connecting part is provided with a first protruding part protruding in the direction of the annular mounting groove, and the first protruding part is configured to fix the clamp.

[0019] In an optional embodiment, the clamp is provided with a size adjusting part, the size adjusting part comprises an adjusting groove and a plurality of adjusting teeth, and the adjusting teeth are selectively accommodated in the adjusting groove.

[0020] In a second aspect, the application provides a pipe connecting system, comprising a pipe and the clamp type connecting pipe of any one of the preceding embodiments, and the pipe is accommodated in the space between the second annular part and the core part.

[0021] The application has the following beneficial effects:

[0022] The application provides a clamp type connecting pipe fitting and a pipe connecting system, which are characterized by the following: a positioning stop ring is arranged on the outer surface of the core part, which can protect the structure of the core part and prevent the core part from being damaged; the positioning stop ring can also accurately position the position of the core part, prevent the compression from being deviated, and ensure the tightness of the connection between the pipe and the clamp type connecting pipe fitting. The positioning stop ring is composed of a first annular part, a second annular part and a connecting part. The clamp is arranged in the annular mounting groove formed by the first annular part, the second annular part and the connecting part. The pipe is arranged in the space between the second annular part and the core part. The clamp does not directly contact the pipe. The compression force of the clamp acts on the second annular part. The plurality of opening grooves on the second annular part can make the second annular part deform inwardly after being compressed by the clamp, so that the compression force is transmitted to the pipe, the pipe and the pipe fitting are compressed, and tight connection is achieved. The compression is more uniform, and the tightness of the connection between the pipe and the clamp type connecting pipe fitting is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the application, and therefore should not be regarded as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0024] Fig. 1 is an exploded view of the structure of the clamp type connecting pipe fitting provided by the embodiments of the application;

[0025] Fig. 2 is a sectional view of the clamp type connecting pipe fitting provided by the embodiments of the application;

[0026] Fig. 3 is a sectional view of the pipe fitting body provided by the embodiments of the application;

[0027] Fig. 4 is a sectional view of the positioning stop ring provided by the embodiments of the application;

[0028] Fig. 5 is a structural schematic view of the positioning stop ring provided by the embodiments of the application;

[0029] Fig. 6 is a structural schematic view of the clamp provided by the embodiments of the application;

[0030] Fig. 7 is an exploded view of the structure of the pipe connecting system provided by the embodiments of the application;

[0031] Fig. 8 is a sectional view of the pipe connecting system provided by the embodiments of the application.

[0032] Icon: 100 - clamp type connecting pipe fitting; 110 - clamp; 111 - limiting protrusion; 112 - adjusting groove; 113 - adjusting tooth; 120 - pipe fitting body; 121 - protruding part; 122 - core part; 123 - first positioning groove; 130 - positioning stop ring; 131 - first annular part; 1311 - limiting clamping groove; 1312 - first protruding part; 132 - second annular part; 1321 - open groove; 1322 - first positioning protrusion; 133 - connecting part; 134 - annular mounting groove; 140 - pipe mounting groove; 10 - pipe connecting system; 200 - pipe. DETAILED DESCRIPTION

[0033] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0035] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0036] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product is usually placed, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0037] In addition, the terms "horizontal", "vertical" and the like do not mean that the components must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0038] In the description of the present application, it also needs to be explained that, unless explicitly defined and limited, the terms "set", "install", "connect", "connect" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] Please refer to FIG. 1 and FIG. 2, the present embodiment provides a clamp type connecting pipe fitting 100, which comprises a clamp 110, a pipe fitting body 120 and a positioning stop ring 130.

[0040] Please refer to FIG. 3, the pipe fitting body 120 comprises a protruding part 121 and a core part 122, the protruding part 121 is located between two adjacent core parts 122, and the outer surface of each core part 122 is spacedly sleeved with a positioning stop ring 130, and the clamp 110 is fixedly matched with the positioning stop ring 130.

[0041] Please refer to FIG. 1, when the pipe fitting body 120 is a straight section structure, the protruding part 121 is one, the core part 122 is two, and the two core parts 122 are respectively located at the two ends of the protruding part 121, for connecting with the pipeline 200.

[0042] Each core part 122 is provided with a first positioning groove 123 at one end close to the protruding part 121, for limiting the positioning stop ring 130.

[0043] Please refer to FIG. 4, in the present embodiment, the positioning stop ring 130 comprises a first annular part 131, a second annular part 132 and a connecting part 133, the first annular part 131 is spacedly sleeved on the outer surface of the second annular part 132, and one end of the first annular part 131 and the second annular part 132 in the same direction is connected through the connecting part 133, so as to form an annular mounting groove 134 between the first annular part 131, the second annular part 132 and the connecting part 133, and the clamp 110 is accommodated in the annular mounting groove 134. Therefore, the two surfaces of the clamp 110 are respectively in contact with the surfaces of the first annular part 131 and the second annular part 132, and do not directly contact the surface of the pipeline 200, so that the stress of the pipeline 200 is more uniform.

[0044] Please refer to FIG. 2, the second annular part 132 extends from the first annular part 131 at the end away from the connecting part 133, which can protect the area where the core part 122 is located to a longer length, and since the second annular part 132 is located in the first annular part 131, the interval between the core part 122 and the positioning stop ring 130 should be the interval between the core part 122 and the second annular part 132, which is used to accommodate the pipeline 200, so the interval is the pipeline installation groove 140. The second annular part 132 extends from the first annular part 131 at the end away from the connecting part 133, which can be in contact with more pipe 200 surface area to fix, which is conducive to the stability of the crimping of the clamp type connecting pipe fitting 100.

[0045] Please refer to FIG. 5, the second annular part 132 is fixedly connected with the first positioning groove 123 on the core part 122 at the end away from the connecting part 133. In this embodiment, the end face of the second annular part 132 away from the connecting part 133 is provided with a first positioning protrusion 1322 extending in the direction away from the annular installation groove 134, and the first positioning protrusion 1322 is fixedly connected with the first positioning groove 123 to prevent the positioning stop ring 130 from being separated from the pipe fitting body 120.

[0046] The positioning between the first positioning protrusion 1322 of the positioning stop ring 130 and the first positioning groove 123 of the core part 122 can fix the positioning stop ring 130 on the surface of the core part 122, and when the clamp 110 needs to be crimped, it can ensure that the position of the clamp 110 crimping is the core part 122, avoiding the situation that the crimping is not firm and the like.

[0047] In order to ensure that the positioning stop ring 130 can exert stable crimping force on the pipeline 200, the second annular part 132 away from the connecting part 133 is also provided with at least two opening grooves 1321 extending in the direction of the connecting part 133, when the clamp 110 is inwardly contracted, the groove width of the opening groove 1321 will be reduced, thereby extruding the pipeline 200 in the direction of the core part 122, ensuring that the pipeline 200 is tightly connected with the core part 122. In addition, after the positioning stop ring 130 is installed, the opening groove 1321 is located at the end close to the protruding part 121 of the pipe fitting body 120, so it can also be judged whether the pipeline 200 is installed in place through the opening groove 1321.

[0048] Therefore, in order to ensure better crimping effect, in this embodiment, a plurality of opening grooves 1321 are uniformly arranged at the end of the second annular part 132 away from the connecting part 133, so as to improve the stress uniformity of the pipeline 200.

[0049] In this embodiment, the number of opening grooves 1321 is 4, and the included angle between the positions of the two adjacent opening grooves 1321 is 90°. In other embodiments, the number of opening grooves 1321 can also be 6 or 8.

[0050] Please refer to FIG. 5 and FIG. 6, in the embodiment, in order to facilitate the clamping 110 limit, the outer surface of the clamping 110 is provided with a limit protrusion 111, the first annular part 131 is provided with a limit clamping groove 1311, the limit protrusion 111 and the limit clamping groove 1311 are matched and fixed.

[0051] In the embodiment, the limit clamping groove 1311 is a square structure, which is the same structure as the limit protrusion 111 on the surface of the clamping 110 and is matched in size.

[0052] The cooperation of the limit protrusion 111 and the limit clamping groove 1311 can limit the rotation of the clamping 110 in the annular direction in the annular mounting groove 134, realizing the positioning in the annular direction. At the same time, the limit protrusion 111 of the clamping 110 is also one of the key adjustment structures for realizing the increase and decrease of the inner diameter of the clamping 110, which is placed in the limit clamping groove 1311, and the crimping process of the clamping 110 can be better operated.

[0053] Please refer to FIG. 6, in the embodiment, the clamping 110 is provided with a size adjustment part, the size adjustment part includes an adjustment groove 112 and a plurality of adjustment teeth 113, the adjustment teeth 113 can be selectively accommodated in the adjustment groove 112, and the structure of the clamping 110 can adopt the existing structure of the clamping 110.

[0054] Please refer to FIG. 5, further, in order to avoid the axial movement of the clamping 110 along the pipe body 120, in the embodiment, the first annular part 131 is provided with a first protrusion part 1312 protruding towards the annular mounting groove 134 at the end away from the connecting part 133, and the first protrusion part 1312 is configured to fix the clamping 110. Therefore, the two ends of the clamping 110 along the axis of the pipe body 120 are respectively limited by the first protrusion part 1312 and the connecting part 133, so that the clamping 110 is stably accommodated in the annular mounting groove 134.

[0055] Please refer to FIG. 7 and FIG. 8, further, the application embodiment also provides a pipeline connection system 10, which includes a pipeline 200 and the above-mentioned clamping type connecting pipe 100, and the pipeline 200 is accommodated in the pipeline mounting groove 140 between the second annular part 132 and the core part 122.

[0056] The pipeline connection system 10 provided in the embodiment has the following assembly process:

[0057] Please refer to figure 1 and figure 2, first assemble the clamp type connecting pipe fitting 100. The positioning stop ring 130 is sleeved on the surface of the core body part 122, the first positioning protrusion 1322 of the positioning stop ring 130 is clamped in the first positioning groove 123 of the core body part 122, which ensures the stable connection of the positioning stop ring 130 and the pipe fitting body 120, and the core body part 122 and the second annular part 132 are spaced apart, and the gap therebetween is the pipeline installation groove 140.

[0058] The clamp 110 is sleeved into the annular installation groove 134 between the first annular part 131 and the second annular part 132 from the end away from the connecting part 133, the limiting protrusion 111 of the clamp 110 is matched and fixed with the limiting clamping groove 1311 of the first annular part 131, and the first protruding part 1312 provided at the end of the first annular part 131 away from the connecting part 133 limits the clamp 110, so that the clamp 110 cannot rotate in the annular direction and cannot move in the axial direction of the core body part 122, which ensures that the position of the force applied by the clamp 110 corresponds to the core body part 122 of the pipe fitting body 120.

[0059] Please refer to figure 7 and figure 8, the pipeline 200 is inserted into the pipeline installation groove 140 between the core body part 122 and the second annular part 132, and whether the pipeline 200 is installed in place is observed through the open groove 1321, and when the pipeline 200 is installed in place, the second annular part 132 can be inwardly tightened by operating the clamp 110, and the second annular part 132 is inwardly tightened due to the provision of the open groove 1321, so that the pressure applied by the clamp 110 is converted through the second annular part 132 to apply pressure to the pipeline 200 in the second annular part 132 more uniformly, so that the connection between the pipeline 200 and the core body part 122 is more closely, and the pressure bonding force between the pipeline 200 and the core body part 122 is more uniform.

[0060] The clamp type connecting pipe fitting 100 is convenient to install, has a bidirectional positioning function for the clamp 110, has a protection function for the core body part 122, and can also make the pressure bonding between the pipeline 200 and the core body part 122 more uniform.

[0061] The above is only a preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application. Industrial applicability

[0062] The present application provides a clamp type connecting pipe fitting and a pipeline connecting system, which can protect the core body part of the pipe fitting body, the pressure bonding process of the pipeline and the pipe fitting is more uniform, and the pressure bonding stability is improved.

[0063] In addition, it can be understood that the clamp type connecting pipe fitting and the pipe connecting system of the present application are reproducible and can be widely applied to the technical field of pipe connection.

Claims

1. A clamp-type coupling pipe fitting, characterized by, The utility model provides a clamp type connecting pipe joint, which comprises a clamp, a pipe body and a positioning check ring. The pipe body comprises a protruding part and a core part, the protruding part is located between two adjacent core parts, the outer surface of each core part is provided with the positioning check ring, and the clamp is fixed with the positioning check ring. Each core part is provided with a first positioning groove at one end close to the protruding part, the positioning check ring comprises a first annular part, a second annular part and a connecting part, the first annular part is sleeved on the outer surface of the second annular part, one end of the first annular part and the second annular part is connected through the connecting part, so that the first annular part, the second annular part and the connecting part form an annular mounting groove, and the clamp is accommodated in the annular mounting groove. One end of the second annular part away from the connecting part protrudes from the first annular part and is fixedly connected with the first positioning groove on the core part, and at least two opening grooves extending in the direction of the connecting part are formed in one end of the second annular part away from the connecting part.

2. The clamp-on coupling of claim 1, wherein, The plurality of opening grooves are uniformly arranged at one end of the second annular part away from the connecting part.

3. The clamp-on coupling of claim 1, wherein, The number of the opening grooves is 4-8.

4. A clamp-on coupling as claimed in claim 2 or 3, wherein, The end surface of one end of the second annular part away from the connecting part is provided with a first positioning protrusion extending away from the annular mounting groove, and the first positioning protrusion is fixed with the first positioning groove.

5. The clamp-on coupling of claim 1, wherein, The outer surface of the clamp is provided with a limiting protrusion, the first annular part is provided with a limiting clamping groove, and the limiting protrusion is fixed with the limiting clamping groove.

6. The clamp-on coupling of claims 1 or 5, wherein, One end of the first annular part away from the connecting part is provided with a first protruding part protruding in the direction of the annular mounting groove, and the first protruding part is configured to fix the clamp.

7. The clamp-on coupling of claim 5 wherein, The clamp is provided with a size adjusting part, the size adjusting part comprises an adjusting groove and a plurality of adjusting teeth, and the adjusting teeth are selectively accommodated in the adjusting groove.

8. A pipe coupling system characterized by, The utility model provides a clamp type connecting pipe joint, which comprises a clamp, a pipe body and a positioning check ring. The pipe body comprises a protruding part and a core part, the protruding part is located between two adjacent core parts, the outer surface of each core part is provided with the positioning check ring, and the clamp is fixed with the positioning check ring.

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