Weldable blocking inner plug for PE buoyancy pipe

Abstract

The utility model belongs to the technical field of pipelines, and particularly relates to a weldable blocking inner plug for a PE buoyancy pipe, which comprises a welding part and a blocking part. The welding part is used for being welded with a buoyancy pipe; the blocking part is used for blocking the two adjacent buoyancy pipes, the blocking part is in a pipe shape with one closed end, the open end of the blocking part is connected with the welding part, the peripheral wall of the blocking part is matched with the inner walls of the buoyancy pipes, and the blocking part is provided with a clamping part used for controlling the inner plug so that the blocking part can be inserted into the buoyancy pipes in a matched mode. The blocking inner plug divides the buoyancy pipe into independent spaces, the situation that due to partial breakage of the buoyancy pipe, overall sealing fails is avoided, the blocking portion of the inner plug can be inserted into the buoyancy pipe more easily due to the arrangement of the clamping portion, assembling time is shortened, production efficiency is improved, and inserting connection accuracy is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pipeline technical field especially relates to a weldable type barrier inner plug for PE buoyancy pipe. BACKGROUND

[0002] In the field of ocean engineering, water entertainment and rescue, PE pipe is often used for the connection and support of buoy system and underwater equipment, so it needs to have good buoyancy and sealing performance to effectively prevent water from entering the pipe and causing the buoyancy to decrease.

[0003] At present, the main barrier method of PE buoyancy pipe is rubber ring sealing, which can play a sealing role to a certain extent, but in the process of use, it is easy to be affected by external forces such as water flow impact and pipe bending, causing the sealing ring to be squeezed out or deformed too much, thereby affecting the sealing effect. After long-term use, the sealing performance of the rubber ring will be affected due to aging and wear. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of weldable type barrier inner plugs for PE buoyancy pipe, to reach the effect of reducing the time of assembly, improve production efficiency, improve the precision of insertion.

[0005] Therefore, the utility model provides a kind of weldable type barrier inner plug for PE buoyancy pipe, including:

[0006] Welding portion, the welding portion is used to be welded with buoyancy pipe;

[0007] Barrier portion, the barrier portion is used to barrier two adjacent buoyancy pipes, barrier portion is closed at one end Tubular, the opening end of barrier portion is connected with welding portion, barrier portion outer wall is matched with buoyancy pipe inner wall, clamping portion is set on barrier portion for the barrier portion cooperation insertion into buoyancy pipe for controlling inner plug.

[0008] In the technical scheme, the end of buoyancy pipe and the side of inner plug welding portion towards barrier portion are heated by heating plate, then hand pinch or professional clamp clamping clamping portion makes barrier portion cooperation insertion into buoyancy pipe, keep certain pressure until the surface of welding portion and buoyancy pipe contact cools and solidifies, form firm connection, then heat the other end of inner plug welding portion and the end surface of another buoyancy pipe by heating plate, after reaching molten state, remove heating plate, apply certain pressure to make welding portion and buoyancy pipe molten surface abut together, realize close connection after cooling, repeat the above operation to form multiple buoyancy pipe connection, and separate buoyancy pipe into independent space, prevent buoyancy pipe from being broken and leading to overall sealing failure, the setting of clamping portion can facilitate the barrier portion of inner plug to be inserted into buoyancy pipe more easily, reduce the time of assembly, improve production efficiency, improve the precision of insertion.

[0009] Further, the clamping portion comprises a protruding portion protruding from the blocking portion end closure to the welding portion direction, and a first accommodating groove is formed between the outer periphery of the protruding portion and the inner wall of the blocking portion.

[0010] In the technical solution, the first accommodating groove leaves a space for the hand or clamp.

[0011] Further, the protruding portion is recessed inward at one end away from the welding portion to form a second accommodating groove, and the volume of the first accommodating groove is equal to the volume of the second accommodating groove.

[0012] In the technical solution, by arranging a second accommodating groove with the same volume as the first accommodating groove, and the air in the first accommodating groove and the second accommodating groove belongs to two adjacent buoyancy tubes respectively, two closed spaces can be formed near the welding position of the two buoyancy tubes, so that the inner plug can include two mutually independent accommodating gas cavities, the balance of the inner plug can be ensured, when one side of the buoyancy tube is damaged and leaks, part of the liquid pressure will act along the circumferential direction of the inner plug, rather than all acting on the closed end of the inner plug along the axis direction, and the force of the second accommodating groove and the first accommodating groove on both sides of the inner plug can also achieve the effect of balance, so that the stability of the inner plug after the buoyancy tube is damaged can be ensured, and the inner plug can be uniformly stressed in all directions to prevent the inner plug from moving randomly and damaging the welding relationship of the buoyancy tube.

[0013] Further, the cross section of the first accommodating groove is annular, and the cross section of the second accommodating groove is circular.

[0014] Further, the welding portion is in the shape of a ring plate, and the outer diameter of the welding portion is the same as the outer diameter of the buoyancy tube.

[0015] Further, a plurality of connecting holes are arranged on the welding portion along the circumferential direction.

[0016] In the technical solution, the connecting holes can make the welding portion and the end portion of the buoyancy tube more firmly connected when they are fusion welded.

[0017] Further, the blocking plug is made of HDPE material.

[0018] Further, a chamfer is arranged at the closed end of the blocking portion.

[0019] In the technical solution, the chamfer can guide the installation during assembly.

[0020] Further, the thickness of the welding portion is smaller than the depth of the first accommodating groove, and the depth of the second accommodating groove is smaller than the depth of the first accommodating groove.

[0021] In the technical solution, the fusion is facilitated.

[0022] The beneficial effects of the utility model are as follows:

[0023] 1. The clamping part is arranged, and the blocking part of the inner plug can be inserted into the buoyancy pipe more easily, the assembling time is reduced, the production efficiency is improved, and the insertion accuracy is improved.

[0024] 2. By arranging a second containing groove with the same volume as the first containing groove, and the air in the first containing groove and the second containing groove belongs to two adjacent buoyancy pipes respectively, two closed spaces can be formed near the welding position of the two buoyancy pipes, so that the inner plug includes two independent containing gas cavities, the balance of the inner plug can be ensured, when one side of the buoyancy pipe is damaged and leaks, part of the liquid pressure will act along the circumferential direction of the inner plug, instead of all acting on the closed end of the inner plug along the axis direction, and the force of the second containing groove and the first containing groove on both sides of the inner plug can also achieve the effect of balance, so that the stability of the inner plug after the buoyancy pipe is damaged can be ensured, and the inner plug can be prevented from moving randomly to damage the welding relationship of the buoyancy pipe.

[0025] 3. The connecting hole is arranged, so that the welding part and the end of the buoyancy pipe are more tightly connected when they are fusion welded. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a perspective view of the utility model;

[0027] Figure 2 is a half sectional view of the utility model;

[0028] Figure 3 is a schematic view of the utility model connected with the buoyancy pipe;

[0029] Figure 4 is Figure 3 the enlarged view of A of the utility model.

[0030] The marks in the figure are:

[0031] 1, welding part; 2, buoyancy pipe; 3, blocking part; 4, closed end; 5, open end; 6, convex part; 7, first containing groove; 8, second containing groove; 9, connecting hole; 10, chamfer. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art belong to the scope of protection of the present application.

[0033] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0034] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0035] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0036] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0037] Example 1

[0038] like Figures 1-4 As shown, a weldable barrier plug for a PE buoyancy pipe 2 includes:

[0039] Welding part 1, which is used for welding to the buoyancy tube 2;

[0040] The blocking part 3 is used to block two adjacent buoyancy tubes 2. The blocking part 3 is a tube with one end closed. The open end 5 of the blocking part 3 is connected to the welding part 1. The outer peripheral wall of the blocking part 3 matches the inner wall of the buoyancy tube 2. The blocking part 3 is provided with a clamping part for controlling the inner plug so that the blocking part 3 can be inserted into the buoyancy tube 2.

[0041] Using a heating plate, heat-melt one end of the buoyancy tube 2 and the side of the inner plug weld 1 facing the barrier 3. Then, use your hand or a professional clamp to hold the clamping part so that the barrier 3 can be inserted into the buoyancy tube 2. Maintain a certain pressure until the surface of the weld 1 and the buoyancy tube 2 in contact cools and solidifies, forming a firm connection. Then, use a heating plate to heat the other end of the inner plug weld 1 and the end face of another buoyancy tube 2 until they reach a molten state. After that, remove the heating plate and apply a certain pressure to make the molten surfaces of the weld 1 and the buoyancy tube 2 come together. After cooling, a tight connection is achieved. Repeat the above operation to form a connection of multiple sections of buoyancy tube 2, and separate the buoyancy tube 2 into independent spaces to prevent the overall seal from failing due to partial breakage of the buoyancy tube 2. The clamping part makes it easier to insert the barrier 3 of the inner plug into the buoyancy tube 2, reducing assembly time, improving production efficiency, and improving the accuracy of insertion.

[0042] The clamping part includes a protrusion 6 that protrudes from the end of the blocking part 3 toward the welding part 1, and a first receiving groove 7 is formed between the outer periphery of the protrusion 6 and the inner wall of the blocking part 3. The first receiving groove 7 provides space for a hand or clamp.

[0043] The end of the protrusion 6 away from the welded part 1 is recessed inward to form a second receiving groove 8, and the volume of the first receiving groove 7 is equal to the volume of the second receiving groove 8. By setting a second receiving groove 8 with the same volume as the first receiving groove 7, and the air in the first receiving groove 7 and the second receiving groove 8 respectively belong to two adjacent buoyancy tubes 2, there are two closed spaces near the weld of the two buoyancy tubes 2, so that the inner plug contains two independent gas-containing cavities. This can ensure the balance and stability of the inner plug. When one buoyancy tube 2 is damaged and leaks, most of the infiltrated liquid pressure will act along the circumference of the inner plug, rather than all along the axial direction at the closed end 4 of the inner plug. Furthermore, the forces of the second receiving groove and the first receiving groove on both sides of the inner plug can also achieve a balanced effect, which can ensure the stability of the inner plug after the buoyancy tube 2 is damaged. It can make the force on the inner plug more uniform in all directions and prevent the inner plug from moving randomly and destroying the weld relationship of the buoyancy tube 2.

[0044] The first receiving groove 7 has an annular cross-section, and the second receiving groove 8 has a circular cross-section.

[0045] The welded part 1 is in the shape of an annular plate, and the outer diameter of the welded part 1 is the same as the outer diameter of the buoyancy tube 2.

[0046] The welding part 1 has multiple connecting holes 9 along the circumferential direction.

[0047] The connection hole 9 allows for a tighter connection when the welding part 1 and the end of the buoyancy tube 2 are fused together.

[0048] The inner barrier plug is made of HDPE material.

[0049] The closed end 4 of the barrier part 3 is provided with a chamfer 10. The chamfer 10 can play a guiding role in the installation process.

[0050] The thickness of the welded part 1 is less than the depth of the first receiving groove 7, and the depth of the second receiving groove 8 is less than the depth of the first receiving groove 7. This facilitates welding.

[0051] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A weldable barrier inner plug for PE buoyancy pipes, characterized in that... ,include: The welding part is used for welding with the buoyancy tube; The barrier section is used to block two adjacent buoyancy tubes. The barrier section is a tube with one end closed. The open end of the barrier section is connected to the welding section. The outer peripheral wall of the barrier section matches the inner wall of the buoyancy tube. The barrier section is provided with a clamping part for controlling the inner plug to be inserted into the buoyancy tube.

2. The weldable barrier plug for a PE buoyancy pipe according to claim 1, characterized in that, The clamping part includes a protrusion that protrudes from the end of the blocking part toward the welding part, and a first receiving groove is formed between the outer periphery of the protrusion and the inner wall of the blocking part.

3. The weldable barrier plug for a PE buoyancy pipe according to claim 2, characterized in that, The end of the protrusion away from the welded part is recessed inward to form a second receiving groove, and the volume of the first receiving groove is equal to the volume of the second receiving groove.

4. The weldable barrier plug for a PE buoyancy pipe according to claim 3, characterized in that, The first receiving groove has an annular cross-section, while the second receiving groove has a circular cross-section.

5. The weldable barrier plug for a PE buoyancy pipe according to claim 1, characterized in that, The welded part is in the shape of an annular plate, and the outer diameter of the welded part is the same as the outer diameter of the buoyancy tube.

6. The weldable barrier plug for a PE buoyancy pipe according to claim 1, characterized in that, The welded part has multiple connecting holes along the circumferential direction.

7. The weldable barrier plug for a PE buoyancy pipe according to claim 1, characterized in that, The inner barrier plug is made of HDPE material.

8. The weldable barrier plug for a PE buoyancy pipe according to claim 1, characterized in that, The closed end of the barrier is chamfered.

9. A weldable barrier plug for a PE buoyancy pipe according to claim 3, characterized in that, The thickness of the welded part is less than the depth of the first receiving groove, and the depth of the second receiving groove is less than the depth of the first receiving groove.

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