Threading pipe with compression resistance function

By installing pressure-resistant reinforcing rods at both ends of the conduit body to form a ring-shaped support structure, the problems of insufficient pressure resistance and insufficient connection strength of the conduit are solved, achieving efficient pressure protection and stable connection, and ensuring line safety.

CN224264662UActive Publication Date: 2026-05-19RUISU (SHANDONG) PIPELINE TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
RUISU (SHANDONG) PIPELINE TECHNOLOGY CO LTD
Filing Date
2025-06-10
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing conduit has insufficient pressure resistance, is prone to deformation, and its connection strength relies on adhesive, making it easy to detach, which affects the safety of the circuit and maintenance costs.

Method used

Pressure-resistant reinforcing rods are installed at both ends of the conduit body. The pressure-resistant reinforcing rods are connected to the connecting pipe head by bolts and fastening nuts to form a ring-shaped support structure, which evenly distributes the pressure and enhances the connection strength.

Benefits of technology

It improves the compressive strength of the conduit, ensures the safety of the internal conductors, extends the service life, prevents detachment, and guarantees the stability and reliability of the circuit.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224264662U_ABST
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Abstract

The utility model provides a conduit with a compression resistance function, which comprises a conduit main body, pipe discs, a connecting pipe head, a compression resistance reinforcing rod and a fastening nut, the pipe discs are integrally formed at two ends of the conduit main body through injection molding, the pipe discs correspond to the connecting pipe head through bolts, and the connecting pipe head is connected with the compression resistance reinforcing rod through bolts. A plurality of compression-resistant reinforcing rods distributed in a circular array mode are installed on the pipe disc through fastening nuts. According to the utility model, the circular array compression-resistant reinforcing rods are coiled at the two ends of the threading pipe main body and are fixed through the connecting pipe heads, so that a stable compression-resistant system is formed, and the pressure can be dispersed. The connecting pipe head is ingenious in design, and reliable rigid connection is achieved through bolts and nuts. And the uniformly distributed reinforcing rods and precisely matched parts ensure the pressure resistance balance in all directions, and the overall performance is improved.
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Description

Technical Field

[0001] This utility model belongs to the field of conduit technology, and in particular relates to a conduit with pressure resistance. Background Technology

[0002] Conduit pipes are widely used in various fields such as power and telecommunications, serving to effectively protect the internal conductors. In practical applications, such as during construction, conduit pipes may be subjected to external forces from stacked building materials and the crushing force of construction machinery; when laid underground, they must withstand soil pressure and pressure transmitted from passing vehicles. However, commonly used conduit pipes generally have some problems. On the one hand, due to limitations in their structural design, most conduit pipes have a central through-hole, resulting in poor overall compressive strength. Under significant pressure, the conduit pipe is prone to deformation, which can compress the internal conductors, causing damage and seriously affecting safety. On the other hand, existing conduit connection methods, such as the use of flared socket joints with adhesive, rely excessively on the adhesive for connection strength, lacking an effective rigid connection structure. When subjected to significant external pressure, conduit pipes are prone to detachment, affecting not only the normal operation of the line but also potentially increasing subsequent maintenance costs.

[0003] Therefore, it is essential to invent a conduit with pressure resistance. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a conduit with pressure resistance function, including a conduit body, a tube coil, a connecting tube head, pressure-resistant reinforcing rods and fastening nuts. The tube coil is integrally injection molded at both ends of the conduit body. The tube coil is connected to the connecting tube head by bolts. Several pressure-resistant reinforcing rods are installed on the tube coil in a circular array by fastening nuts.

[0005] Preferably, the connecting pipe head includes a connector body, a mating protrusion, an outer mounting hole, and an inner mounting hole. The two ends of the connector body are respectively provided with mating protrusions. The outer mounting hole and the inner mounting hole are respectively opened through the inner and outer rings of the connector body. The bolt passes through the outer mounting hole and the pipe disc in sequence, so that the connector body and the pipe disc are installed together.

[0006] Preferably, the outer diameter of the mating protrusion is adapted to the inner diameter of the conduit body, and an inner mounting hole is provided on the inner side of the mating protrusion, the size of which matches the end size of the compression-resistant reinforcing rod.

[0007] Preferably, the plurality of internal mounting holes are divided into two groups in an alternating manner. The two ends of each group of the compression-resistant reinforcing rods pass through the two internal mounting holes of the same group of the connecting pipe heads, and a fastening nut is screwed on the end position. Each end of the compression-resistant reinforcing rod is provided with threads that are compatible with the fastening nut.

[0008] Preferably, each of the conduit bodies is provided with a set of compressive reinforcement rods, and the compressive reinforcement rods inside the conduit body are arranged in a circular array.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] This invention utilizes a circular array of pressure-resistant reinforcing rods installed on the tube discs at both ends of the conduit body. Each set of reinforcing rods passes through two internal mounting holes of the same group of connecting tube heads and is tightened with a nut, forming a robust pressure-resistant structural system for the entire conduit. When the conduit is subjected to external pressure, the reinforcing rods effectively disperse the pressure, preventing deformation of the conduit body due to excessive local pressure. This significantly improves the conduit's pressure resistance, ensures the safety of the internal conductors, and extends the conduit's service life.

[0011] The design of this utility model's connecting pipe head is ingenious. The outer diameter of the mating protrusions at both ends of the connector body matches the inner diameter of the conduit body, facilitating installation. Simultaneously, the outer and inner mounting holes on the connector body, along with bolts and fastening nuts, ensure a reliable connection between the conduit body, the connecting pipe head, and the pressure-resistant reinforcing rod. Compared to traditional connections relying solely on adhesives, this connection method adds a rigid connection component, significantly improving connection strength. Even under substantial external impact, the conduits are less likely to detach, ensuring the stability and reliability of the wiring system.

[0012] Each conduit body in this invention is equipped with a set of pressure-resistant reinforcing rods arranged in a circular array. This uniformly distributed structural design ensures that the conduit has a relatively balanced pressure resistance in all directions, preventing overall damage due to weak local pressure resistance. Furthermore, the internal mounting holes on the inner side of the mating protrusion are precisely matched to the end dimensions of the pressure-resistant reinforcing rods, further improving the assembly accuracy and stability of the entire structure. This ensures that all components work together effectively, achieving optimal pressure resistance and connection performance. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the exploded structure of the anti-compression reinforcement rod of this utility model before it is installed.

[0015] Figure 3 This is a schematic diagram of the main structure of this utility model.

[0016] In the picture:

[0017] 1. Conduit body, 2. Conduit coil, 3. Connecting pipe head, 31. Connector body, 32. Butt joint, 33. External mounting hole, 34. Internal mounting hole, 4. Compression-resistant reinforcing rod, 5. Fastening nut. Detailed Implementation

[0018] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0019] In the description of the embodiments, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and for simplifying the description, and 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. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in the present utility model based on the specific circumstances.

[0020] As attached Figure 1 To be continued Figure 3 As shown:

[0021] This utility model provides a conduit with pressure resistance function, including a conduit body 1, a tube coil 2, a connecting tube head 3, pressure-resistant reinforcing rods 4 and fastening nuts 5. The tube coil 2 is integrally injection molded at both ends of the conduit body 1. The tube coil 2 corresponds to the connecting tube head 3 by bolts. Several pressure-resistant reinforcing rods 4 are installed on the tube coil 2 in a circular array by fastening nuts 5.

[0022] Furthermore, the connector 3 consists of a connector body 31, a mating protrusion 32, an outer mounting hole 33, and an inner mounting hole 34. The connector body 31 is injection molded from high-strength engineering plastic. The mating protrusions 32, integrally formed at both ends, have an outer diameter precisely matched to the inner diameter of the conduit body 1, achieving an interference fit to ensure sealing and stability. The outer mounting hole 33 and inner mounting hole 34 are evenly distributed on the inner and outer rings of the connector body 31, respectively. The outer mounting hole 33 has a diameter of 5mm, and the inner mounting hole 34 has a diameter of 4mm. During installation, M4 bolts are passed sequentially through the outer mounting hole 33 of the connector body 31 and the corresponding mounting hole on the conduit coil 2, and tightened with nuts to firmly connect the connector body 31 and the conduit coil 2, ensuring connection strength.

[0023] Furthermore, the inner mounting hole 34 provided on the inner side of the mating protrusion 32 is sized to closely match the end size of the compression-resistant reinforcing rod 4. The inner wall of the mounting hole 34 is smooth, facilitating the insertion of the compression-resistant reinforcing rod 4. The mating protrusion 32 is made of rigid polyvinyl chloride (PVC-U) material, which has good wear resistance and impact resistance. When it is used in conjunction with the conduit body 1, it can ensure a sealing effect and provide a stable support point for the compression-resistant reinforcing rod 4, making the connection between the compression-resistant reinforcing rod 4 and the connecting pipe head 3 more reliable.

[0024] Furthermore, the internal mounting holes 34 are divided into two groups in an alternating manner. Each group of compression-resistant reinforcing rods 4 is made of stainless steel with a diameter of 4mm. Both ends of the rod pass through the internal mounting holes 34 of the same group of two connecting pipe heads 3, and M4-sized fastening nuts 5 are tightened at the ends. Each end of the compression-resistant reinforcing rod 4 is provided with a standard metric thread that matches the fastening nut 5, with a thread length of not less than 8mm. After tightening the fastening nut 5, the compression-resistant reinforcing rod 4 can be effectively prevented from loosening, ensuring the stability of the entire compression-resistant structure.

[0025] Furthermore, each conduit body 1 is equipped with a set of pressure-resistant reinforcing rods 4, which are arranged in a circular array inside the conduit body 1. The conduit body 1 is made of high-strength PVC material with a wall thickness of 3mm, possessing good toughness and rigidity. This circular array arrangement allows the conduit body 1 to withstand pressure evenly in all directions. When external pressure is applied to the conduit, the pressure-resistant reinforcing rods 4 can evenly distribute the pressure, preventing excessive local stress on the conduit body 1 and thus avoiding deformation or damage.

[0026] The working principle is as follows: First, the tube coils 2 at both ends of the conduit body 1 are fixedly connected to the connecting tube heads 3 with bolts, forming the basic connection frame of the conduit. Simultaneously, the pressure-resistant reinforcing rods 4 are installed in a circular array on the tube coils 2, passing through the inner mounting holes 34 of the connecting tube heads 3, and are tightened by the fastening nuts 5. When the conduit is subjected to external pressure, the pressure-resistant reinforcing rods 4 transmit the pressure from the tube coils 2 to the connecting tube heads 3, forming a ring-shaped support structure. Next, the staggered groups of pressure-resistant reinforcing rods 4 work together to evenly distribute the pressure to various parts of the conduit body 1. Finally, the high-strength PVC conduit body 1, together with the pressure-resistant reinforcing rods 4, resists external pressure, preventing localized deformation of the conduit body 1 due to pressure concentration, thus achieving efficient pressure-resistant protection of the internal cables.

[0027] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A conduit with pressure resistance, characterized in that, The conduit includes a main body (1), a tube coil (2), a connecting tube head (3), a pressure-resistant reinforcing rod (4), and a fastening nut (5). The tube coil (2) is integrally injection molded at both ends of the main body (1). The tube coil (2) is connected to the connecting tube head (3) by bolts. Several pressure-resistant reinforcing rods (4) are installed on the tube coil (2) by fastening nuts (5) in a circular array.

2. A conduit with pressure-resistant function as described in claim 1, characterized in that: The connecting pipe head (3) includes a connector body (31), a mating protrusion (32), an outer mounting hole (33), and an inner mounting hole (34). The connector body (31) has mating protrusions (32) at both ends. The outer mounting hole (33) and the inner mounting hole (34) are respectively opened through the inner and outer rings of the connector body (31). The bolt passes through the outer mounting hole (33) and the pipe disc (2) of the connector body (31) in sequence, so that the connector body (31) and the pipe disc (2) are installed together.

3. A conduit with pressure-resistant function as described in claim 2, characterized in that: The outer diameter of the mating protrusion (32) is adapted to the inner diameter of the conduit body (1), and an inner mounting hole (34) is provided on the inner side of the mating protrusion (32). The size of the inner mounting hole (34) matches the end size of the pressure-resistant reinforcing rod (4).

4. A conduit with pressure-resistant function as described in claim 3, characterized in that: Several of the inner mounting holes (34) are divided into two groups in an alternating manner. The two ends of each group of the pressure-resistant reinforcing rods (4) pass through the inner mounting holes (34) of the two connecting pipe heads (3) in the same group, and a fastening nut (5) is screwed on the end. Each end of the pressure-resistant reinforcing rod (4) is provided with threads that are compatible with the fastening nut (5).

5. A conduit with pressure-resistant function as described in claim 4, characterized in that: Each of the conduit bodies (1) is provided with a set of the compressive reinforcement rods (4), and the compressive reinforcement rods (4) inside the conduit bodies (1) are arranged in a circular array.