Multi-angle butt joint rubber pipe
By designing a multi-angle connecting hose joint structure, the problem of unstable connection caused by the fixed angle of existing hose joints is solved, realizing flexible angle adjustment and stable connection, and enhancing the applicability and service life of the hose.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU PENGLING RUBBER HOSE CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-05-19
AI Technical Summary
The fixed joint angle of existing hoses cannot adapt to hose arrangements that are not axially aligned, resulting in easy bending of the connection area, poor sealing, and unstable media delivery.
The design incorporates multi-angle connecting hoses with inclined circular end faces. High-strength bolts and anti-slip pads enhance connection stability, while sealing rings fill gaps and anti-slip pads increase friction, allowing for angle adjustments from 90 to 180 degrees.
This increases the flexibility of hose connection angles, broadens applicability, improves connection stability, avoids wear, extends service life, and ensures stable media delivery.
Smart Images

Figure CN224261187U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hose technology, specifically a multi-angle connecting hose. Background Technology
[0002] Rubber hoses are a type of tubular rubber product used to transport gases, liquids, slurries, or granular materials. They consist of inner and outer rubber layers and a reinforcing layer. The reinforcing layer can be made of materials such as cotton fiber, various synthetic fibers, carbon fiber, asbestos, or steel wire. In actual use, the length of a single hose may not be sufficient, so butt hoses are used. Butt hoses have a built-in connector that allows two hoses to be joined together, thus extending the hose length and enabling the medium to be transported to a more distant location.
[0003] Existing hoses typically come with connectors at fixed angles, either axially aligned or perpendicularly joined. However, in actual use, due to factors such as equipment housing and building space, the hose's joining angle may be greater than or less than 90 degrees. Since the connectors are usually made of rigid materials and cannot be bent like the hose, when there is a large difference between the joining angle and the hose's arrangement angle, the area where the hose and connector connect is prone to bending or even kinking. Firstly, bending at the connection area causes the connection area to be subjected to both axial and radial forces simultaneously, making the hose end prone to expansion. This can lead to the hose, which does not use a fixed connection method, easily separating from the connector and affecting the sealing performance. Secondly, bending can affect the transport of the medium. Utility Model Content
[0004] Therefore, the purpose of this utility model is to provide a multi-angle docking hose to solve the technical problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-angle butt hose, comprising a hose body, with connectors connected to both ends of the hose body, and an installation hole provided on one side of the connector, with a high-strength bolt inside the installation hole, and a sealing ring and an anti-slip pad respectively connected inside the connector.
[0006] By adopting the above technical solution, during docking, because the end faces of the joints are inclined circles, before docking the two joints, the operator can rotate the joints around the center of the inclined circle to adjust the docking angle of the two joints. The docking angle ranges from 90 degrees to 180 degrees, so that the docking angle of the hose body is no longer limited to 90 degrees, but can fluctuate freely between 90 degrees and 180 degrees, increasing flexibility and making it more widely applicable. The shape of the mounting holes allows for a large range. No matter what the included angle of rotation of the two joints is, there will be a partial area of the mounting holes on the two joints, which makes it easy for the operator to tighten and limit the two joints with high-strength bolts. High-strength bolts cannot withstand large loads and are suitable for scenarios where the docking surfaces of the two joints are inclined, with good stability and high strength. The sealing ring can fill the gap between the two joints to prevent media leakage, while the presence of the anti-slip pad increases the friction after the two joints are tightened together, preventing the two joints from rotating at will and causing wear, thus extending the service life of the structure.
[0007] Furthermore, the end face of the connector is inclined at an angle of 45°.
[0008] By adopting the above technical solution, since the end face of the connector is inclined and circular, before the two connectors are joined, the operator can rotate the connector along the center of the inclined circle to adjust the joining angle of the two connectors. The joining angle ranges from 90 degrees to 180 degrees, so that the joining angle of the hose body is no longer limited to 90 degrees, but can float freely between 90 degrees and 180 degrees, increasing flexibility and making its applicability more extensive.
[0009] Furthermore, the connector is made of aluminum alloy.
[0010] By adopting the above technical solution, the connector is made of aluminum alloy material, which is simple to process and can be integrally formed by core-pulling die casting mold, and is lightweight, high-strength and corrosion-resistant.
[0011] Furthermore, the mounting hole is arc-shaped, and the included angle between the two ends of the mounting hole is 45°.
[0012] By adopting the above technical solution, the shape of the mounting hole allows for a large range. Regardless of the angle between the rotation of the two joints, there will be corresponding areas of the mounting holes on the two joints, which makes it easier for workers to fasten and limit the two joints with high-strength bolts.
[0013] Furthermore, the mounting holes are provided in four shapes, and the four mounting holes are distributed in a circular array.
[0014] By adopting the above technical solution and increasing the number of mounting holes to four, the eight mounting holes on the two connectors can be combined to form a complete circle of 360 degrees. Therefore, no matter what the included angle of rotation of the two connectors is, there will be a partial area corresponding to the mounting holes on the two connectors.
[0015] Furthermore, the gaps between the hose body and the four mounting holes correspond.
[0016] By adopting the above technical solution, the four mounting holes are staggered from the main body of the hose, avoiding the hose body and the thinner end of the connector from obstructing the insertion of bolts, thus facilitating disassembly and assembly.
[0017] Furthermore, multiple high-strength bolts are provided.
[0018] By adopting the above technical solution and increasing the number of high-strength bolts, the connection point between the two joints is enlarged, thereby improving the stability of the structure.
[0019] Furthermore, the sealing ring is made of fluororubber.
[0020] By adopting the above technical solution, the sealing ring can fill the gap between the two joints, prevent media leakage, and the fluororubber has good weather resistance, high elastic modulus, and resistance to acid and alkali corrosion, making it easy to use for a long time.
[0021] Furthermore, the outer ring of the connector is provided with an anti-slip groove, and the hose body is fitted with a clamp.
[0022] By adopting the above technical solution, during assembly, the worker puts the main body of the hose onto the narrow end of the connector, and then uses a clamp to press one end of the hose body tightly. The clamp, together with the anti-slip groove, increases the friction between the hose body and the connector, thereby preventing the hose body from falling off naturally.
[0023] In summary, the present invention has the following main advantages:
[0024] This invention, through the design of a connector, mounting holes, high-strength bolts, and anti-slip pads, features a connector with an inclined circular end face. Before docking, the two connectors can rotate around the center of this inclined circle, adjusting their docking angle. The docking angle ranges from 90 to 180 degrees, allowing the hose body's docking angle to freely fluctuate within this range, increasing flexibility and broadening its applicability. The shape of the mounting holes allows for a wide range of orientations; regardless of the included angle of rotation, the mounting holes on both connectors will correspond in some areas, facilitating tight securing with high-strength bolts. Since high-strength bolts cannot withstand large loads, they are suitable for scenarios where the docking surfaces of the two connectors are inclined, offering good stability and high strength. Furthermore, the anti-slip pads increase friction after the two connectors are fastened together, preventing wear caused by uncontrolled rotation and extending the structure's service life. The design offers good flexibility and a wide docking angle range, making it suitable for a wider range of scenarios. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the structure of this utility model;
[0026] Figure 2 This is a schematic diagram of the joint structure for straight-line butt welding of this utility model;
[0027] Figure 3 This is a schematic diagram of the joint structure of this utility model when vertically connected;
[0028] Figure 4 This is a schematic diagram of the joint structure when the present invention is tilted during docking.
[0029] In the diagram: 1. Hose body; 2. Connector; 3. Anti-slip groove; 4. Clamp; 5. Mounting hole; 6. High-strength bolt; 7. Sealing ring; 8. Anti-slip pad. Detailed Implementation
[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0031] The embodiments of this utility model will be described below based on its overall structure.
[0032] Example 1:
[0033] A multi-angle mating hose, such as Figures 1-4As shown, the device includes a hose body 1, with connectors 2 connected to both ends. The end faces of connectors 2 are inclined at an angle of 45°. Connectors 2 are made of aluminum alloy. Because the end faces of connectors 2 are inclined and circular, before the two connectors 2 are joined, the operator can rotate connectors 2 around the center of the inclined circle to adjust the joining angle of the two connectors 2. The joining angle is between 90 degrees and 180 degrees, so that the joining angle of the hose body 1 is no longer limited to 90 degrees, but can float freely between 90 degrees and 180 degrees, increasing flexibility and making it more widely applicable. Inside connectors 2, there are sealing rings 7 and anti-slip pads 8 respectively. The sealing rings 7 are made of fluororubber and can fill the gap between the two connectors 2 to prevent media leakage. The presence of anti-slip pads 8 increases the friction after the two connectors 2 are fastened together, preventing the two connectors 2 from rotating at will and causing wear, thus extending the service life of the structure.
[0034] See Figures 1-4 In the above embodiment, a mounting hole 5 is provided on one side of the connector 2. The mounting hole 5 is arc-shaped, with an included angle of 45° at both ends. There are four mounting holes 5 arranged in a circular array. The gap between the hose body 1 and the four mounting holes 5 corresponds. High-strength bolts 6 are provided inside the mounting holes 5. There are multiple high-strength bolts 6. The shape of the mounting holes 5 makes them relatively large. No matter what the included angle of rotation of the two connectors 2 is, there will be a partial area of the mounting holes 5 on the two connectors 2. This makes it easy for the staff to fasten and limit the two connectors 2 with the high-strength bolts 6. However, the high-strength bolts 6 cannot withstand large loads and are suitable for scenarios where the mating surfaces of the two connectors 2 are inclined. They have good stability and high strength.
[0035] Example 2:
[0036] Based on the above embodiment 1, in order to increase the stability of the connection between the hose body 1 and the connector 2, the following settings are now adopted.
[0037] See Figures 1-4 In the above embodiment, the outer ring of the connector 2 is provided with an anti-slip groove 3, and the hose body 1 is fitted with a clamp 4. The worker puts the hose body 1 on the thinner end of the connector 2, and then the worker presses one end of the hose body 1 tightly with the clamp 4. The clamp 4, in conjunction with the texture of the anti-slip groove 3, increases the friction between the hose body 1 and the connector 2, thereby preventing the hose body 1 from falling off naturally.
[0038] The implementation principle of this utility model is as follows: First, during production, the connector 2 is integrally formed by core-pulling die casting. At the same time, the mounting hole 5 and the anti-slip groove 3 are formed simultaneously, and the groove for placing the sealing ring 7 and the anti-slip groove 3 is also formed simultaneously. After that, the workers roughen the anti-slip pad 8 and the connector 2, and then use epoxy glue to attach the rubber anti-slip pad 8 to the end face of the connector 2. The anti-slip pad 8 can also be other materials with a high coefficient of friction or be fixed in other ways.
[0039] During assembly, the workers put the hose body 1 on the thinner end of the connector 2, and then use the clamp 4 to press one end of the hose body 1 tightly. The clamp 4, in conjunction with the anti-slip groove 3, increases the friction between the hose body 1 and the connector 2, thereby preventing the hose body 1 from falling off naturally.
[0040] During docking, since the end face of connector 2 is inclined and circular, before docking the two connectors 2, the operator can rotate connector 2 around the center of the inclined circle to adjust the docking angle of the two connectors 2. The docking angle ranges from 90 degrees to 180 degrees, so that the docking angle of the hose body 1 is no longer limited to 90 degrees, but can float freely between 90 degrees and 180 degrees, increasing flexibility and making it more widely applicable. The shape of the mounting hole 5 makes it large in range. No matter what angle the two connectors 2 rotate, there will be a partial area of the mounting hole 5 on the two connectors 2, which makes it easy for the operator to fasten and limit the two connectors 2 with high-strength bolts 6. The high-strength bolts 6 cannot withstand large loads and are suitable for scenarios where the docking surfaces of the two connectors 2 are inclined, with good stability and high strength. The sealing ring 7 can fill the gap between the two connectors 2 to prevent media leakage, while the presence of the anti-slip pad 8 increases the friction after the two connectors 2 are fastened together, preventing the two connectors 2 from rotating at will and causing wear, thus extending the service life of the structure.
[0041] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.
Claims
1. A multi-angle butt joint hose, comprising a hose body (1), characterized in that: The hose body (1) is connected to connectors (2) at both ends, and a mounting hole (5) is provided on one side of the connector (2), and a high-strength bolt (6) is provided inside the mounting hole (5). A sealing ring (7) and an anti-slip pad (8) are respectively connected inside the connector (2).
2. The multi-angle buttress hose according to claim 1, characterized in that: The end face of the connector (2) is inclined at an angle of 45°.
3. The multi-angle buttress hose according to claim 2, characterized in that: The connector (2) is made of aluminum alloy.
4. The multi-angle buttress hose according to claim 1, characterized in that: The mounting hole (5) is arc-shaped, and the included angle between the two ends of the mounting hole (5) is 45°.
5. The multi-angle buttress hose according to claim 4, characterized in that: The mounting holes (5) are provided in four places, and the four mounting holes (5) are distributed in a ring array.
6. The multi-angle buttress hose according to claim 5, characterized in that: The gaps between the hose body (1) and the four mounting holes (5) correspond.
7. The multi-angle buttress hose according to claim 1, characterized in that: Multiple high-strength bolts (6) are provided.
8. The multi-angle buttress hose according to claim 1, characterized in that: The sealing ring (7) is made of fluororubber.
9. The multi-angle buttress hose according to claim 1, characterized in that: The connector (2) has an anti-slip groove (3) on its outer ring, and the hose body (1) is fitted with a clamp (4).