MPP pipe joint convenient to butt joint
By designing MPP pipe joints with inner and outer layers, using the characteristics of soft plastic layer and hard plastic layer, rapid and stable docking is achieved, solving the problems of numerous devices and cumbersome operations in the existing technology, improving the docking efficiency and stability, and shortening the construction cycle.
Patent Information
- Application Number
- CN202422138188.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-02
AI Technical Summary
The existing MPP pipe docking method requires a variety of devices and cumbersome operations, resulting in inefficiency and extended construction cycle.
The long sleeve design is adopted, including soft plastic layer, steel cylinder layer and hard plastic layer in sequence from the inside to the outside, and the compression resistance and stability are achieved through nesting operations, and the sealing and compression compression of the soft plastic layer and the protection of the hard plastic layer are used to enhance compression resistance and stability.
It simplifies operation steps, reduces device usage, improves docking efficiency, ensures long-term stability and reliability of docking, and shortens construction cycle.
Smart Images
Figure CN223063439U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of pipe fittings, in particular to an MPP pipe joint. Background Art
[0002] At present, when docking MPP pipes, most are achieved through hot melt welding. Among them, using this docking method not only requires preparing devices such as wires, hot melt welding machines, cutting tools (such as milling devices), cleaning tools (such as cleaning cloths), etc., but also requires a lot of time to complete the following operations: tying two MPP pipes to the hot melt welding machine, using the cutting tool to cut the ports of the two MPP pipes, using the cleaning tool to clean the cut ports, using the hot melt welding machine to heat the ports of the two MPP pipes, using the hot melt welding machine to make the softened ports of the two MPP pipes stick together, waiting for the ports of the two MPP pipes to cool to a certain extent on the hot melt welding machine and then removing them from the hot melt welding machine, and then continuing to cool for more than thirty minutes. It can be seen that using hot melt welding to dock MPP pipes not only requires more devices, its operation is very cumbersome, and it takes a long time to cool, so the efficiency of this docking method is very low, which will lead to an increase in the construction period of related projects.
[0003] Therefore, it is very necessary to design an MPP pipe joint that is convenient for docking to solve the above technical problems. Summary of the Utility Model
[0004] The purpose of the utility model is to solve the above problems and deficiencies, and provide an MPP pipe joint that is convenient for docking. This MPP pipe joint can quickly achieve stable docking through nesting operations. It can not only greatly reduce the usage of devices, its operation is very simple, and it does not need to wait after docking. It can be directly used after docking, and it can greatly improve the docking efficiency compared with hot melt welding docking, thus facilitating the shortening of the construction period of related projects; furthermore, this MPP pipe joint also has a very stable and reliable structure, which is conducive to maintaining high stability at the docking part for a long time, and its reliability and applicability are very strong.
[0005] The technical solution of the utility model is realized as follows:
[0006] An MPP pipe joint that is convenient for docking, characterized in that it includes a long sleeve. The long sleeve sequentially includes a soft plastic layer, a steel cylinder layer, and a hard plastic layer from the inside to the outside. The two ends of the soft plastic layer are connected to the two ends of the hard plastic layer.
[0007] Preferably, inner overlapping pieces integrated with it are respectively arranged at the two ends of the soft plastic layer, and outer overlapping pieces integrated with it are respectively arranged at the two ends of the hard plastic layer. The inner overlapping pieces and the outer overlapping pieces are sequentially overlapped on the end faces of the steel cylinder layer.
[0008] Preferably, the outer surface of the inner overlapping piece is a first wavy surface, the inner surface of the outer overlapping piece is a second wavy surface matching the first wavy surface, and the second wavy surface is closely attached to the first wavy surface.
[0009] Preferably, the end face of the steel cylinder layer is a circular arc convex surface, the end of the soft plastic layer is closely attached to the inner end of the circular arc convex surface, the inner overlapping piece is attached to the outer end of the circular arc convex surface, and a guiding arc surface is formed on the outer wall of the end face of the soft plastic layer following the bending of the circular arc convex surface.
[0010] Preferably, the inner surface of the steel cylinder layer is a third wavy surface, and the soft plastic layer is closely attached to the third wavy surface.
[0011] Preferably, the trough of the third wavy surface is recessed to form a limiting groove with a narrow notch and a wide inner part of the groove, and the inner wall of the soft plastic layer is embedded in the limiting groove.
[0012] Preferably, the length L of the long sleeve is 180 - 210 mm.
[0013] Advantages of the present utility model: In this MPP pipe joint, a long sleeve is adopted, which is beneficial for the MPP pipe joint to have sufficient docking amount during docking, thereby being beneficial for improving the reliability of docking. By making the long sleeve include a soft plastic layer, a steel cylinder layer, and a hard plastic layer from the inside to the outside in sequence, and connecting the two ends of the soft plastic layer to the two ends of the hard plastic layer. This can utilize the soft plastic layer to achieve the effect of sealing and pressing tightly. Coupled with the adoption of the long sleeve, the length of the soft plastic layer is also relatively long, so that a sufficient and effective sealing effect can be achieved. By adopting the steel cylinder layer, the MPP pipe joint can have high compressive capacity, thereby being beneficial for ensuring that the docking part has very high compressive capacity, and further being beneficial for ensuring high stability of the docking. A hard plastic layer is arranged on the outer layer, and the two ends of the soft plastic layer are connected to the two ends of the hard plastic layer. In this way, the soft plastic layer and the hard plastic layer can play a role in shielding and protecting the steel cylinder layer, which is beneficial for greatly reducing the aging and corrosion speed of the steel cylinder layer; and arranging a hard plastic layer on the outer layer can greatly reduce the probability of damage to the outer layer under pressure; thus being beneficial for extending the service life of the MPP pipe joint, and further being beneficial for keeping the docking part highly stable for a long time. Therefore, this MPP pipe joint can quickly achieve stable docking through nesting operation. It can not only greatly reduce the usage amount of devices, but also has very simple operation. Moreover, it does not need to wait after docking and can be directly used after docking. Compared with hot melt welding docking, it can greatly improve the docking efficiency, thereby being beneficial for shortening the construction period of related projects; furthermore, this MPP pipe joint also has a very stable and reliable structure, which is beneficial for keeping the docking part highly stable for a long time, and its reliability and applicability are very strong. Description of the Drawings
[0014] Figure 1This is a three-dimensional structural schematic diagram of the MPP pipe joint in the present utility model.
[0015] Figure 2 This is a cross-sectional structural schematic diagram of the MPP pipe joint in the present utility model.
[0016] Figure 3 This is a structural schematic diagram of the soft plastic layer in the present utility model.
[0017] Figure 4 This is a structural schematic diagram of the steel cylinder layer in the present utility model.
[0018] Figure 5 This is a structural schematic diagram of the hard plastic layer in the present utility model.
[0019] Figure 6 This is a structural schematic diagram of the use state of the present utility model. Specific embodiments
[0020] As Figure 1 And Figure 2 Shown in the figure, a kind of MPP pipe joint convenient for butt joint described in the present utility model includes a long sleeve 1. The long sleeve 1 sequentially includes a soft plastic layer 11, a steel cylinder layer 12, and a hard plastic layer 13 from inside to outside. The two ends of the soft plastic layer 11 are connected to the two ends of the hard plastic layer 13.
[0021] In this MPP pipe joint, a long sleeve 1 is adopted, which is conducive to having sufficient docking amount during the docking of the MPP pipe joint, thereby facilitating the improvement of the docking reliability. By making the long sleeve 1 include a soft plastic layer 11, a steel cylinder layer 12, and a hard plastic layer 13 from the inside to the outside in sequence, and connecting the two ends of the soft plastic layer 11 to the two ends of the hard plastic layer 13. This can utilize the soft plastic layer 11 to achieve the effect of sealing and pressing. Coupled with the adoption of the long sleeve 1, the length of the soft plastic layer 11 is also relatively long, so that a sufficient and effective sealing effect can be achieved. By adopting the steel cylinder layer 12, the MPP pipe joint can have high compressive capacity, which is conducive to ensuring that the docking part has very high compressive capacity, and further conducive to ensuring high stability of the docking. A hard plastic layer 13 is arranged on the outer layer, and the two ends of the soft plastic layer 11 are connected to the two ends of the hard plastic layer 13. In this way, the soft plastic layer 11 and the hard plastic layer 13 can play a role in shielding and protecting the steel cylinder layer 12, which is conducive to greatly reducing the aging and corrosion speed of the steel cylinder layer 12; and setting the hard plastic layer 13 on the outer layer can greatly reduce the probability of damage to the outer layer under pressure; thus, it is conducive to extending the service life of the MPP pipe joint, and further conducive to keeping the docking part highly stable for a long time. Therefore, the MPP pipe joint can quickly achieve stable docking through nesting operation. It can not only greatly reduce the usage amount of devices, but also has very simple operation. And it does not need to wait after docking, and can be directly used after docking. Compared with hot melt welding docking, it can greatly improve the docking efficiency, thereby facilitating the shortening of the construction period of related projects; moreover, this MPP pipe joint also has a very stable and reliable structure, which is conducive to keeping the docking part highly stable for a long time, and its reliability and applicability are very strong.
[0022] As Figure 2 、 Figure 3 and Figure 5 shown, inner overlapping pieces 111 integrated with it are respectively arranged at the two ends of the soft plastic layer 11, outer overlapping pieces 131 integrated with it are respectively arranged at the two ends of the hard plastic layer 13, and the inner overlapping pieces 111 and the outer overlapping pieces 131 are sequentially overlapped on the end face of the steel cylinder layer 12. This is not only conducive to stably restricting the soft plastic layer 11, but also plays a very good role in protecting the steel cylinder layer 12, thereby helping to further improve the reliability and applicability of this MPP pipe joint.
[0023] As Figure 2 、 Figure 3 and Figure 5As shown, the outer surface of the inner lap piece 111 is a first wave surface 112, and the inner surface of the outer lap piece 131 is a second wave surface 132 matching the first wave surface 112, and the second wave surface 132 is closely attached to the first wave surface 112. This can enhance the limiting ability of the outer lap piece 131 on the inner lap piece 111, thereby helping to improve the limiting effect on the inner lap piece 111, and further help to further improve the stability and reliability of the installation and positioning of the soft plastic layer 11.
[0024] like Figure 2 and Figure 4 As shown, the end face of the steel cylinder layer 12 is a circular arc convex surface 121, the end of the soft plastic layer 11 is closely attached to the inner end of the circular arc convex surface 121, the inner lap piece 111 is attached to the outer end of the circular arc convex surface 121, and the outer wall of the end face of the soft plastic layer 11 is bent along the circular arc convex surface 121 to form a guide arc surface 113. This can not only ensure that the end of the soft plastic layer 11 and the inner lap piece 111 are attached stably, but also can use the guide arc surface 113 to conveniently put the MPP pipe joint on the MPP pipe, thereby improving the convenience of use.
[0025] like Figure 2 and Figure 4 As shown, the inner surface of the steel cylinder layer 12 is a third wave surface 122, and the soft plastic layer 11 is closely attached to the third wave surface 122. In this way, the adhesion ability of the soft plastic layer 11 can be enhanced, which can prevent the soft plastic layer 11 from being separated from the steel cylinder layer 12 when the MPP pipe joint is more tightly fitted on the MPP pipe, which can further improve the reliability and applicability of the MPP pipe joint.
[0026] like Figure 2 and Figure 4 As shown, in the actual manufacturing process, the end surface of the third wave surface 122 can be extended to the arc-shaped convex surface 121. This can enhance the limiting strength of the end of the soft plastic layer 11 and the inner lap piece 111, thereby further improving the reliability of the MPP pipe joint.
[0027] like Figure 2 As shown, the trough of the third wave surface 122 is formed into a limiting groove 123 with a narrow notch and a wide groove, and the inner wall of the soft plastic layer 11 is embedded in the limiting groove 123. This can make the third wave surface 122 have a stronger limiting effect on the soft plastic layer 11, which can help the MPP pipe joint to be more tightly fitted on the MPP pipe, and this can prevent the soft plastic layer 11 from falling off during the fitting process, so as to further improve the reliability and applicability of the MPP pipe joint.
[0028] like Figure 6As shown, the length L of the long sleeve 1 is 180 - 210 mm. This not only controls the usage amount of raw materials, but also facilitates the quick sheathing of the MPP pipe joint on the basis of ensuring the butt joint sealing performance and reliability. Moreover, even if the MPP pipe undergoes thermal expansion and contraction, it can well ensure high sealing performance at the butt joint, which helps to further improve the applicability of the MPP pipe joint.
[0029] The soft plastic layer 11 is a silicone rubber layer or an EPDM rubber layer, and the thickness of the soft plastic layer 11 is above 12 mm; the hard plastic layer 13 is an MPP hard plastic layer, and the thickness of the hard plastic layer 13 is above 8 mm; the steel cylinder layer 12 is a stainless steel layer, and the thickness of the steel cylinder layer 12 is 5 - 15 mm. This can have good sealing performance and durability, thus ensuring the reliability and applicability of the MPP pipe joint.
[0030] During the actual manufacturing process, the soft plastic layer 11 and the hard plastic layer 13 can be arranged on the inner and outer surfaces of the steel cylinder layer 12 by means of injection molding; specifically, the soft plastic layer 11 and the inner overlapping piece 111 can be injection molded on the steel cylinder layer 12 first, and then the hard plastic layer 13 and the outer overlapping piece 131 can be injection molded on the steel cylinder layer 12 and the inner overlapping piece 111 respectively, so as to meet the requirements of actual manufacturing and use.
[0031] As Figure 6 shown, in order to further improve the structural strength of the butt joint of the MPP pipe, the following MPP pipe 10 can be adopted: a steel cylinder 101 is embedded in the end of the MPP pipe 10, and the steel cylinder 101 is arranged around the inner hole of the MPP pipe 10. When docking the MPP pipe 10, the MPP pipe joint is sheathed on the end of the MPP pipe 10, and part or all of the steel cylinder 101 is located inside the MPP pipe joint. Among them, in order to enable the MPP pipe joint to be smoothly sheathed on the MPP pipe 10, a lubricant can be applied on the outer surface of the end of the MPP pipe 10, so that the soft plastic layer 11 can be conveniently sheathed on the MPP pipe 10, thus ensuring the convenience of the butt joint of the MPP pipe.
Claims
1. A conveniently dockable MPP pipe joint, characterized in that: It includes a long sleeve (1), and the long sleeve (1) sequentially includes a soft plastic layer (11), a steel cylinder layer (12), and a hard plastic layer (13) from inside to outside. The two ends of the soft plastic layer (11) are connected to the two ends of the hard plastic layer (13).
2. The conveniently dockable MPP pipe joint according to claim 1, characterized in that: Inner overlapping pieces (111) integrated with the soft plastic layer (11) are respectively arranged at the two ends of the soft plastic layer (11), and outer overlapping pieces (131) integrated with the hard plastic layer (13) are respectively arranged at the two ends of the hard plastic layer (13). The inner overlapping pieces (111) and the outer overlapping pieces (131) are sequentially overlapped on the end face of the steel cylinder layer (12).
3. The conveniently dockable MPP pipe joint according to claim 2, characterized in that: The outer surface of the inner overlapping piece (111) is a first wavy surface (112), the inner surface of the outer overlapping piece (131) is a second wavy surface (132) matching the first wavy surface (112), and the second wavy surface (132) is closely attached to the first wavy surface (112).
4. The conveniently dockable MPP pipe joint according to claim 2 or 3, characterized in that: The end face of the steel cylinder layer (12) is an arc-shaped convex surface (121). The end of the soft plastic layer (11) is closely attached to the inner end of the arc-shaped convex surface (121), the inner overlapping piece (111) is attached to the outer end of the arc-shaped convex surface (121), and a guiding arc surface (113) is formed by the outer wall of the end face of the soft plastic layer (11) bending along with the arc-shaped convex surface (121).
5. The conveniently dockable MPP pipe joint according to claim 1, wherein: The inner surface of the steel cylinder layer (12) is a third wavy surface (122), and the soft plastic layer (11) is closely attached to the third wavy surface (122).
6. The conveniently dockable MPP pipe joint according to claim 5, characterized in that: The trough of the third wavy surface (122) is recessed to form a limiting groove (123) with a narrow notch and a wide inner part of the groove, and the inner wall of the soft plastic layer (11) is embedded in the limiting groove (123).
7. The conveniently dockable MPP pipe joint according to claim 1, characterized in that: The length L of the long sleeve (1) is 180 - 210 mm.