B-type krah pipe convenient to connect

By designing a connection mechanism on the B-type Krah tube and utilizing components such as a connecting ring, sealing ring, threaded cylinder, and snap ring, a convenient and stable connection of the B-type Krah tube is achieved, solving the problems of inconvenient connection and easy leakage in the existing technology, and improving the sealing performance and corrosion resistance of the connection.

CN224135362UActive Publication Date: 2026-04-17SHAANXI DINGMEI PIPE IND TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHAANXI DINGMEI PIPE IND TECH CO LTD
Filing Date
2025-06-12
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The existing technology for connecting type B kraft tubes is inconvenient, not secure, and prone to leakage, and requires welding equipment or consumes manpower and resources.

Method used

The connection mechanism includes components such as a connecting ring, a sealing ring, a threaded cylinder, and a snap ring. It achieves a stable connection of the B-type kraft tube through threaded connection and snap-fit ​​method, and uses a corrosion-resistant sleeve to improve the corrosion resistance of the connection.

Benefits of technology

It enables convenient and stable connection of type B corrugated tubing, improves the sealing performance and corrosion resistance of the connection, and reduces the consumption of manpower and material resources.

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Abstract

The utility model provides a B-type Krah pipe convenient to connect, and relates to the technical field of winding structure wall pipes, the B-type Krah pipe convenient to connect comprises a first Krah pipe, and the outer portion of the first Krah pipe and the right side of the first Krah pipe are jointly provided with a connecting mechanism; the connecting mechanism comprises two connecting rings, a second Krah pipe is arranged on the right side of the first Krah pipe, the inner walls of the two connecting rings are fixedly connected with the outer surface of the first Krah pipe and the outer surface of the second Krah pipe correspondingly, and the sides, close to each other, of the two connecting rings are jointly provided with a connecting sealing ring. According to the B-type Krah pipe convenient to connect, the connecting rings are fixed to the outer surface of the first Krah pipe and the outer surface of the second Krah pipe, the two connecting rings are in threaded connection through the first threaded cylinder, and the other side of the second threaded cylinder is in threaded connection to the exterior of the first threaded cylinder; the first threaded cylinder and the connecting ring are sealed through the first sealing ring, the second threaded cylinder and the connecting ring are sealed through the second sealing ring, and the two B-type Krah pipes can be fastened and connected in a sealed mode conveniently.
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Description

Technical Field

[0001] This utility model relates to a type B corrugated tube, specifically a type B corrugated tube with convenient connection, belonging to the technical field of wound structure wall tubes. Background Technology

[0002] Spiral wound structured wall pipe (PEB), also known as type B corrugated pipe, is a type of pipe with spiral "O" ribs on its outer surface, and the "O" ribs contain hollow or structural cavity tubes with polyolefin material as auxiliary support.

[0003] A type B carat tube disclosed in Chinese Patent Application Publication CN219493344U includes a main tube body and ribbed tubes spirally wound circumferentially along the outer wall surface of the main tube body. Each ribbed tube includes an inner tube and a covering layer encasing the outer wall surface of the inner tube. A pad is provided at the bottom of the inner tube, positioned at the connection between the main tube body and the covering layer. This technical solution eliminates indentations caused by the compression of the ribbed tube at the contact point between the ribbed tube and the outer wall layer of the tube by a single-wall corrugated pipe, ensuring consistent overall wall thickness of the carat tube and not affecting the product's appearance quality. It also improves the carat tube's overall quality. Regarding the ring stiffness performance of the pipe, the above-mentioned technical solutions, when installing and connecting two Type B Krall pipes, generally involve manually inserting the spigot of the Type B Krall pipe slowly and evenly into the socket until it is fully inserted. Although this connection method is relatively convenient, the connection is not firm and is prone to leakage. Alternatively, the two Type B Krall pipes can be directly welded together using welding equipment. This connection method requires welding equipment and is very demanding on welding technology. It is also prone to leakage due to poor welding quality. Or, the two Type B Krall pipes can be directly connected together using bolts. This connection method is relatively inconvenient and wastes manpower and resources in connection and installation.

[0004] Therefore, a convenient connection method for the B-type kraft tube is proposed here. Utility Model Content

[0005] This invention proposes a convenient connection method for B-type Krah tubes to solve the problem in the prior art that it is not convenient, quick and stable to connect two B-type Krah tubes.

[0006] This utility model is achieved through the following technical solution: a conveniently connected B-type carat tube, including a first carat tube, and a connecting mechanism is provided on the outside of the first carat tube and the right side of the first carat tube.

[0007] The connecting mechanism includes two connecting rings. A second carat tube is provided on the right side of the first carat tube. The inner walls of the two connecting rings are fixedly connected to the outer surfaces of the first and second carat tubes, respectively. A connecting sealing ring is provided on the side of the two connecting rings that are close to each other. A first sealing ring is fitted on the outer surface of the second carat tube. The left side of the first sealing ring is in contact with the right side of one of the connecting rings. A second sealing ring is fitted on the outer surface of the first carat tube. The right side of the second sealing ring is in contact with the left side of the other connecting ring. A first threaded cylinder is threadedly connected to the outer surface of the two connecting rings. The inner wall of the first threaded cylinder is in contact with the right side of the first sealing ring. The left side of the first threaded cylinder is in contact with the right side of the second sealing ring. The inner wall of the first threaded cylinder is in contact with the outer surface of the second carat tube. A second threaded cylinder is threadedly connected to the outer surface of the first threaded cylinder. The inner wall of the second threaded cylinder is in contact with the left side of the second sealing ring. The inner wall of the second threaded cylinder is in contact with the outer surface of the first carat tube.

[0008] The connecting mechanism is provided with a rectangular sealing component inside, and the first carbide tube is provided with an auxiliary connecting component outside.

[0009] The rectangular sealing assembly includes two sets of first snap-fit ​​rings. The two sets of first snap-fit ​​rings are fixedly connected to the two sides of the connecting sealing ring on their respective sides. Two first sealing grooves are formed on the sides of the two connecting rings that are close to each other. The two sets of first snap-fit ​​rings are snapped into the interiors of the two sets of first sealing grooves. Two second snap-fit ​​rings are fixedly connected to the left side of the first sealing ring and the right side of the second sealing ring. Two second sealing grooves are formed on the sides of the two connecting rings that are far apart from each other. The two sets of second snap-fit ​​rings are snapped into the interiors of the two sets of second sealing grooves.

[0010] The auxiliary connection assembly includes two rotating rings. The inner walls of the two rotating rings are in contact with the outer surfaces of the first and second lamellar tubes, respectively. The sides of the two rotating rings that are close to each other are fixedly connected to the right side of the first and second threaded cylinders, respectively. A hexagonal block is fixedly connected to the outer surface of each rotating ring.

[0011] Each hexagonal block has an extension rod fixedly connected to its outer surface at equal intervals in a circular pattern, and a hand-held rotating ring is fixedly connected to the end of each extension rod away from the hexagonal block.

[0012] The outer surfaces of the first and second carat tubes are both fixedly connected with spiral winding protrusions, and the inner walls of the first and second carat tubes are both provided with spiral winding grooves.

[0013] A corrosion-resistant sleeve is fixedly connected to the outer surface of the second threaded cylinder. The corrosion-resistant sleeve is made of carbon fiber resin composite material.

[0014] This utility model provides a conveniently connected B-type kraft tube, which has the following beneficial effects:

[0015] 1. This convenient connection type B-type corrugated tubing can use a connecting sealing ring between the first corrugated tubing and the second corrugated tubing to seal the connection between them. Connecting rings are fixed on the outer surfaces of both the first and second corrugated tubing. First sealing rings and second sealing rings can be respectively set on both sides of the two connecting rings. The two connecting rings can be threaded together using a first threaded cylinder, and a second threaded cylinder can be threaded to the outside of the first threaded cylinder on the other side. The first sealing ring and the second sealing ring respectively seal the connection between the first threaded cylinder and the connecting ring, thereby facilitating a tight and sealed connection between the two type B corrugated tubing.

[0016] 2. This conveniently connected type B corrugated tubing can utilize a first snap-fit ​​ring to form a rectangular seal within a first sealing groove, thereby improving the connection sealing performance between the connecting sealing ring and the connecting ring. Furthermore, it utilizes a second snap-fit ​​ring to form a rectangular seal within a second sealing groove, thereby improving the connection sealing performance between the first and second sealing rings and the two connecting rings. This further enhances the connection sealing performance between the two type B corrugated tubing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the first carat tube of this utility model;

[0018] Figure 2 This is a rear view schematic diagram of the second carat tube of this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the connecting ring and connecting sealing ring in a type B corrugated tube according to the present invention after they have been unfolded.

[0020] Figure 4 This is a schematic diagram of the structure of the second threaded cylinder of this utility model.

[0021] Explanation of reference numerals in the attached figures

[0022] 1. The first carat tube;

[0023] 2. Connecting mechanism; 201. Second corrugated tube; 202. Connecting ring; 203. Connecting sealing ring; 204. First sealing ring; 205. Second sealing ring; 206. First threaded cylinder; 207. Second threaded cylinder;

[0024] 3. Rectangular sealing assembly; 301. First snap-fit ​​ring; 302. First sealing groove; 303. Second snap-fit ​​ring; 304. Second sealing groove;

[0025] 4. Auxiliary connecting components; 401. Rotating ring; 402. Hexagonal block; 403. Extension rod; 404. Hand grip swivel;

[0026] 5. Spiral winding protrusion; 6. Spiral winding groove; 7. Corrosion-resistant sleeve. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0028] Please see Figures 1-4 This utility model embodiment provides a conveniently connected B-type carat tube, including a first carat tube 1, and a connecting mechanism 2 is provided on the outside of the first carat tube 1 and the right side of the first carat tube 1.

[0029] Please refer to this carefully. Figure 1 , Figure 2 and Figure 3 The connecting mechanism 2 includes two connecting rings 202. A second carat tube 201 is provided on the right side of the first carat tube 1. The inner walls of the two connecting rings 202 are fixedly connected to the outer surfaces of the first carat tube 1 and the second carat tube 201, respectively. Spiral winding protrusions 5 are fixedly connected to the outer surfaces of the first carat tube 1 and the second carat tube 201. Spiral winding grooves 6 are provided on the inner walls of the first carat tube 1 and the second carat tube 201. Spiral winding protrusions 5 are provided on the outside of the two B-type carat tubes and spiral winding grooves 6 are provided inside them. Since the carat tube is a hot-wound high-density polyethylene wound structure wall tube, it will have spiral winding protrusions 5 and spiral winding grooves 6 inside and outside the B-type carat tube.

[0030] Please refer to this carefully. Figure 2 , Figure 3 and Figure 4Two connecting rings 202 are provided with a connecting sealing ring 203 on their adjacent sides. A first sealing ring 204 is fitted on the outer surface of the second corrugated tube 201, and the left side of the first sealing ring 204 contacts the right side of one of the connecting rings 202. A second sealing ring 205 is fitted on the outer surface of the first corrugated tube 201, and the right side of the second sealing ring 205 contacts the left side of the other connecting ring 202. The two connecting rings 202 are connected by a common thread to a first threaded cylinder 206. The inner wall of the first threaded cylinder 206 contacts the right side of the first sealing ring 204, and the left side of the first threaded cylinder 206 contacts the right side of the second sealing ring 205. The inner wall of the first threaded cylinder 206 is in contact with the outer surface of the second kraft tube 201. The outer surface of the first threaded cylinder 206 is threaded with the second threaded cylinder 207. The inner wall of the second threaded cylinder 207 is in contact with the left side of the second sealing ring 205. The inner wall of the second threaded cylinder 207 is in contact with the outer surface of the first kraft tube 1. A corrosion-resistant sleeve 7 is fixedly connected to the outer surface of the second threaded cylinder 207. The corrosion-resistant sleeve 7 is made of carbon fiber resin composite material. By fixing the corrosion-resistant sleeve 7 to the outer surface of the second threaded cylinder 207, the corrosion resistance of the connection structure between the two B-type kraft tubes can be improved, thereby improving the stability of the connection between the two B-type kraft tubes.

[0031] Please refer to this carefully. Figure 1 and Figure 3 The connecting mechanism 2 has a rectangular sealing assembly 3 inside, and the first corrugated tube 1 has an auxiliary connecting assembly 4 outside. The rectangular sealing assembly 3 includes two sets of first snap-fit ​​rings 301. The sides of the two sets of first snap-fit ​​rings 301 that are close to each other are fixedly connected to the two sides of the connecting sealing ring 203. Two first sealing grooves 302 are opened on the sides of the two connecting rings 202 that are close to each other. The two sets of first snap-fit ​​rings 301 are snapped into the two sets of first sealing grooves 302. The left side of the first sealing ring 204 and the right side of the second sealing ring 205 are fixedly connected to... Two second snap-fit ​​rings 303 and two connecting rings 202 each have two second sealing grooves 304 on their opposite sides. The two sets of second snap-fit ​​rings 303 are respectively snapped into the interior of the two sets of second sealing grooves 304. The connection sealing between the two connecting sealing rings 203 and the two connecting rings 202 is improved by using the first snap-fit ​​ring 301 to snap into the interior of the first sealing groove 302. The connection sealing between the first sealing ring 204 and the second sealing ring 205 and the two connecting rings 202 is improved by using the second snap-fit ​​rings 303 to snap into the interior of the second sealing grooves 304.

[0032] Please refer to this carefully. Figure 1 and Figure 4The auxiliary connection assembly 4 includes two rotating rings 401. The inner walls of the two rotating rings 401 are in contact with the outer surfaces of the first kraft tube 1 and the second kraft tube 201, respectively. The sides of the two rotating rings 401 that are close to each other are fixedly connected to the right side of the first threaded cylinder 206 and the left side of the second threaded cylinder 207, respectively. A hexagonal block 402 is fixedly connected to the outer surface of each rotating ring 401. By connecting the two rotating rings 401 to the first threaded cylinder 206 and the second threaded cylinder 207, the two B-type kraft tubes can be easily connected and installed by using the hexagonal blocks 402 fixed to the outside of the two rotating rings 401 and rotating the first threaded cylinder 206 and the second threaded cylinder 207 with tools.

[0033] Please refer to this carefully. Figure 1 and Figure 4 Each hexagonal block 402 has an extension rod 403 arranged in a circular pattern at equal intervals fixedly connected to its outer surface. Each extension rod 403 has a hand-held rotating ring 404 fixedly connected to the end away from the hexagonal block 402. By manually holding the hand-held rotating ring 404, the hexagonal block 402 and the rotating ring 401 can be rotated using multiple extension rods 403.

[0034] When using this utility model: When it is necessary to connect the first carat tube 1 and the second carat tube 201 conveniently and stably, the connecting sealing ring 203 is first placed between the first carat tube 1 and the second carat tube 201 by manual holding. This allows the two sides of the connecting sealing ring 203 to contact the connecting ring 202 fixed between the first carat tube 1 and the second carat tube 201. At the same time, the multiple first snap-fit ​​rings 301 fixed on both sides of the connecting sealing ring 203 can snap into the multiple first sealing grooves 302 opened on one side of the two connecting rings 202 to form a rectangular seal, thereby further improving the connection sealing performance between the first carat tube 1 and the second carat tube 201.

[0035] Next, the second sealing ring 205 and the first sealing ring 204, which are sleeved on the outer surfaces of the first carat tube 1 and the second carat tube 201, are moved closer to the connecting ring 202 by manual operation. Since multiple second snap-fit ​​rings 303 are fixed on one side of the first sealing ring 204 and one side of the second sealing ring 205 and snap into multiple second sealing grooves 304 opened on both sides of the two connecting rings 202, a rectangular seal can be formed between the first sealing ring 204 and the second sealing ring 205 and the two connecting rings 202. At this time, by manually holding the rotating ring 404, the hexagonal block 402 and the rotating ring 401 can be rotated using multiple extension rods 403, so that the first threaded cylinder 206 can be rotated outside the second carat tube 201, so that the first threaded cylinder 206 can be threadedly connected to the outer surface of the two connecting rings 202 until the first threaded cylinder 206 can contact one side of the second sealing ring 205.

[0036] By manually holding the other hand to grip the rotating ring 404, the second threaded cylinder 207 can be rotated on the outer surface of the first carbide tube 1, allowing the second threaded cylinder 207 to be threadedly connected to the outer surface of the first threaded cylinder 206 until the inner wall of the second threaded cylinder 207 contacts one side of the first threaded cylinder 206. This allows the first threaded cylinder 206 and the second threaded cylinder 207 to connect to the connecting ring 202, facilitating a convenient and quick connection between the first carbide tube 1 and the second carbide tube 201. Furthermore, the sealing fit of the connecting sealing ring 203, the first sealing ring 204, and the second sealing ring 205, along with the rectangular sealing fit of the first snap ring 301, the first sealing groove 302, the second snap ring 303, and the second sealing groove 304, can improve the connection sealing between the first carbide tube 1 and the second carbide tube 201, thus facilitating a tight and sealed connection between the two B-type carbide tubes.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A B-type klear tube with easy connection, comprising a first klear tube (1), characterized in that: A connecting mechanism (2) is provided on the outside of the first carat tube (1) and on the right side of the first carat tube (1); The connecting mechanism (2) includes two connecting rings (202). A second kra tube (201) is provided on the right side of the first kra tube (1). The inner walls of the two connecting rings (202) are fixedly connected to the outer surfaces of the first kra tube (1) and the second kra tube (201), respectively. A connecting sealing ring (203) is provided on the side of the two connecting rings (202) that are close to each other. A first sealing ring (204) is sleeved on the outer surface of the second kra tube (201). The left side of the first sealing ring (204) is in contact with the right side of one of the connecting rings (202). A second sealing ring (205) is sleeved on the outer surface of the first kra tube (1). The right side of the second sealing ring (205) is in contact with the other connecting ring. The left side of the connecting ring (202) is in contact with each other, and the two connecting rings (202) are connected to the first threaded cylinder (206) by a common thread. The inner sidewall of the first threaded cylinder (206) is in contact with the right side of the first sealing ring (204), the left side of the first threaded cylinder (206) is in contact with the right side of the second sealing ring (205), the inner wall of the first threaded cylinder (206) is in contact with the outer surface of the second kraft tube (201), and the outer surface of the first threaded cylinder (206) is connected to the second threaded cylinder (207). The inner sidewall of the second threaded cylinder (207) is in contact with the left side of the second sealing ring (205), and the inner wall of the second threaded cylinder (207) is in contact with the outer surface of the first kraft tube (1). The connecting mechanism (2) is provided with a rectangular sealing component (3) inside, and the first kraft tube (1) is provided with an auxiliary connecting component (4) outside.

2. A B-type Kelly bushing with convenient connection according to claim 1, characterized in that: The rectangular sealing assembly (3) includes two sets of first snap-fit ​​rings (301). The two sets of first snap-fit ​​rings (301) are fixedly connected to the two sides of the connecting sealing ring (203) on their respective sides. The two connecting rings (202) are provided with two first sealing grooves (302) on their respective sides. The two sets of first snap-fit ​​rings (301) are respectively snapped into the interior of the two sets of first sealing grooves (302). The left side of the first sealing ring (204) and the right side of the second sealing ring (205) are fixedly connected with two second snap-fit ​​rings (303). The two connecting rings (202) are provided with two second sealing grooves (304) on their respective sides. The two sets of second snap-fit ​​rings (303) are respectively snapped into the interior of the two sets of second sealing grooves (304).

3. A B-type Kelly bushing with convenient connection according to claim 1, characterized in that: The auxiliary connection assembly (4) includes two rotating rings (401). The inner walls of the two rotating rings (401) are in contact with the outer surfaces of the first carbide tube (1) and the second carbide tube (201), respectively. The two rotating rings (401) are fixedly connected to the right side of the first threaded cylinder (206) and the left side of the second threaded cylinder (207), respectively. A hexagonal block (402) is fixedly connected to the outer surface of each rotating ring (401).

4. A B-type Kelly bushing with easy connection according to claim 3, characterized in that: Each of the hexagonal blocks (402) has an extension rod (403) arranged in a circular pattern at equal intervals fixedly connected to its outer surface, and a hand grip ring (404) is fixedly connected to the end of each set of extension rods (403) away from the hexagonal block (402).

5. The conveniently connected Type B kraft tubing according to claim 1, characterized in that: The outer surface of the first carat tube (1) and the outer surface of the second carat tube (201) are both fixedly connected with spiral winding protrusions (5), and the inner wall of the first carat tube (1) and the inner wall of the second carat tube (201) are both provided with spiral winding grooves (6).

6. A B-type Kelly bushing with convenient connection according to claim 1, characterized in that: The outer surface of the second threaded cylinder (207) is fixedly connected with a corrosion-resistant sleeve (7), which is made of carbon fiber resin composite material.

Citation Information

Patent Citations

  • B-type krah tube

    CN219493344U