Foaming flexible rubber hose

Abstract

The utility model relates to the technical field of flexible rubber hoses, in particular to a foaming flexible rubber hose. According to the technical scheme, the sealing assembly comprises a first threaded connector, a rubber hose, a buckle ring and an attaching block, the rubber hose is fixedly installed at the position, close to the end, of the inner wall of the first threaded connector, and the buckle ring is fixedly installed at the position, close to the end, of the outer arc face of the rubber hose; the inner wall of the second threaded connector is slidably connected with two attaching blocks which are symmetrically arranged, and the side portions of the buckle rings make contact with the attaching blocks. A first threaded connector is fixedly installed at the end of the main foaming hose, and the outer wall of the first threaded connector is in threaded connection with a second threaded connector. When air flows, the air applies pressure to the inner arc surface of the rubber hose to enable the rubber hose to be attached to the inner arc surface of the attaching block, and the clamping ring and the attaching block clamp the extending rubber sheet, so that the air is prevented from flowing to the joint of the first threaded joint and the second threaded joint, and the sealing effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of flexible tubing technology, and more particularly to foamed flexible tubing. Background Technology

[0002] Foamed flexible tubing is a type of tubing containing a large number of air bubbles and with a soft texture. It is usually made of materials such as rubber, silicone, or polyurethane. Through a specific foaming process, a porous structure is formed inside the tubing. Its soft texture and elasticity allow it to fit tightly against the surface of an object, filling gaps and uneven areas, thus providing a good seal and preventing the leakage of gas, liquid, or dust.

[0003] Ordinary air transport is one of the most common uses of foamed rubber hoses. For example, in some ventilation systems, they serve as pipes connecting ventilation equipment and air vents to exchange indoor and outdoor air, maintaining indoor air circulation and freshness. Foamed rubber hoses play an important role in ventilation systems.

[0004] However, the foamed soft rubber tube is connected by a threaded head, which has poor sealing performance. It is difficult to achieve a tight fit with the threaded connection as with rigid pipes, and there are small gaps at the threaded connection. Utility Model Content

[0005] The purpose of this invention is to address the problem of air leakage at the gap of the threaded joint of foamed soft rubber tubes in the background art, and to propose a foamed soft rubber tube.

[0006] The technical solution of this utility model is: a foamed soft hose, including a main foamed hose for conveying air, wherein multiple annular steel wires are fixedly installed inside the main foamed hose at equal angles, and a second threaded joint is provided at the end of the main foamed hose.

[0007] A sealing assembly includes a first threaded connector, a rubber hose, a snap ring, and a contact block. The rubber hose is fixedly installed on the inner wall of the first threaded connector near its end. The snap ring is fixedly installed on the outer arc surface of the rubber hose near its end. Two symmetrically arranged contact blocks are slidably connected to the inner wall of the second threaded connector. The side of the snap ring contacts the contact block.

[0008] The first threaded connector is fixedly installed at the end of the main foaming hose, and the outer wall of the first threaded connector is threadedly connected to the second threaded connector.

[0009] Optionally, the rubber hose adopts a flared structure, with air flowing from the first threaded joint to the second threaded joint. The air acts on the inner arc surface of the rubber hose, which extends into the interior of the second threaded joint, and the outer arc surface of the rubber hose contacts the abutment block.

[0010] Optionally, the abutment block adopts a semi-circular ring structure, and two abutment blocks form a ring. An extension rubber sheet is fixedly installed on the inner wall of the second threaded joint, and the end of the extension rubber sheet extends between the snap ring and the abutment block.

[0011] Optionally, the inner wall of the second threaded connector is provided with a clearance groove, and when the abutment block is fully retracted into the clearance groove, the inner arc surface of the abutment block is flush with the inner arc surface of the second threaded connector.

[0012] Optionally, a separating rod is fixedly installed at the end of the abutment block away from the rubber hose, the end of the separating rod extends to the outside of the second threaded joint, and a spring plate is elastically connected between the end of the abutment block and the second threaded joint, the spring plate being misaligned with the separating rod.

[0013] Optionally, the outer wall of the second threaded joint is slidably connected with a positioning component, the positioning component including a pressing bevel and a positioning groove, the pressing bevel sliding on the outer arc surface of the second threaded joint, the positioning groove being formed at the end of the pressing bevel, and the middle part of the pressing bevel contacting the separating rod.

[0014] Optionally, the end of the separating rod adopts a hemispherical structure, and a positioning ring is provided in the middle of the extrusion slope, and the separating rod is engaged with the positioning ring.

[0015] Optionally, a flexible movable tube is fixedly installed at the end of the main foaming hose, and a secondary foaming hose is fixedly installed at the end of the flexible movable tube. The steel wire inside the main foaming hose extends into the interior of the secondary foaming hose, and the inner walls of the main foaming hose, the secondary foaming hose, and the flexible movable tube are all coated with a lubricating coating.

[0016] Compared with the prior art, the present invention has the following beneficial technical effects:

[0017] In this invention, when air flows, the air applies pressure to the inner arc surface of the rubber hose, causing it to press against the inner arc surface of the abutment block. The snap ring and the abutment block clamp and extend the rubber sheet, thereby preventing air from flowing to the connection between the first threaded joint and the second threaded joint, thus improving the sealing effect.

[0018] Furthermore, the separation rod is engaged with the positioning ring to position the extrusion ramp, ensuring that the extrusion ramp always applies a thrust to the positioning ring, so that the two contact blocks are in a combined state. This prevents the extrusion ramp from sliding directly on the second threaded joint, thus maintaining the stability of the contact block position and preventing gaps that could lead to air leakage. Attached Figure Description

[0019] Figure 1 A schematic diagram of the overall structure of one embodiment of the present invention is provided;

[0020] Figure 2 A schematic diagram of a rubber hose structure according to an embodiment of the present invention is provided;

[0021] Figure 3 This is a schematic diagram of the main sectional view of the first threaded joint structure;

[0022] Figure 4 This is a schematic diagram of the extended rubber sheet structure.

[0023] Reference numerals: 1. Main foaming hose; 2. Secondary foaming hose; 3. Flexible movable tube; 4. Steel wire; 5. Sealing assembly; 51. First threaded connector; 52. Rubber hose; 53. Snap ring; 54. Abutment block; 55. Spring sheet; 56. Extension rubber sheet; 57. Separation rod; 6. Second threaded connector; 7. Positioning assembly; 71. Extrusion bevel; 72. Positioning ring; 73. Positioning groove. Detailed Implementation

[0024] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0025] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0026] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Example 1

[0030] This embodiment proposes a foamed soft rubber tube, such as Figure 1 As shown, it includes a main foaming hose 1 for conveying air. Multiple annular steel wires 4 are fixedly installed inside the main foaming hose 1 at equal angles. A flexible movable tube 3 is fixedly installed at the end of the main foaming hose 1. A secondary foaming hose 2 is fixedly installed at the end of the flexible movable tube 3. The steel wires 4 inside the main foaming hose 1 extend into the interior of the secondary foaming hose 2. The inner walls of the main foaming hose 1, the secondary foaming hose 2, and the flexible movable tube 3 are all coated with a lubricating coating. A second threaded connector 6 is provided at the end of the main foaming hose 1.

[0031] The main foaming hose 1, the secondary foaming hose 2, and the flexible movable tube 3 are supported by steel wire 4 to prevent collapse and affect internal air circulation. The flexible movable tube 3 adjusts the angle between the main foaming hose 1 and the secondary foaming hose 2.

[0032] like Figure 2 and Figure 3 As shown, a sealing assembly 5 is provided at the end of the main foaming hose 1. The sealing assembly 5 includes a first threaded connector 51, a rubber hose 52, a snap ring 53, and a contact block 54. The rubber hose 52 is fixedly installed on the inner wall of the first threaded connector 51 near the end. The snap ring 53 is fixedly installed on the outer arc surface of the rubber hose 52 near the end. Two symmetrically arranged contact blocks 54 are slidably connected to the inner wall of the second threaded connector 6. The side of the snap ring 53 contacts the contact block 54.

[0033] like Figure 3 and Figure 4 As shown, the abutment block 54 adopts a semi-circular ring structure, and the two abutment blocks 54 form a ring. An extension rubber sheet 56 is fixedly installed on the inner wall of the second threaded joint 6, and the end of the extension rubber sheet 56 extends between the snap ring 53 and the abutment block 54. The snap ring 53 is positioned and supported by the two abutment blocks 54, and the extension rubber sheet 56 prevents air from flowing through the gap between the abutment block 54 and the second threaded joint 6.

[0034] The rubber hose 52 has a flared structure. Air flows from the first threaded joint 51 into the second threaded joint 6. The air acts on the inner arc surface of the rubber hose 52. The rubber hose 52 extends into the interior of the second threaded joint 6. The outer arc surface of the rubber hose 52 contacts the abutment block 54.

[0035] When air flows, the air applies pressure to the inner arc surface of the rubber hose 52. At this time, the rubber hose 52 is pressed against the inner arc surface of the abutment block 54. At the same time, the snap ring 53 hooks onto the abutment block 54 to fix the position of the rubber hose 52 and the snap ring 53. The snap ring 53 and the abutment block 54 clamp and extend the rubber sheet 56 to improve the sealing effect.

[0036] like Figure 3 As shown, the inner wall of the second threaded connector 6 has a clearance groove. When the abutment block 54 is fully retracted into the clearance groove, the inner arc surface of the abutment block 54 is flush with the inner arc surface of the second threaded connector 6. A separation rod 57 is fixedly installed at the end of the abutment block 54 away from the rubber hose 52. The end of the separation rod 57 extends to the outside of the second threaded connector 6. A spring plate 55 is elastically connected between the end of the abutment block 54 and the second threaded connector 6. The spring plate 55 is misaligned with the separation rod 57. By pulling the separation rod 57, the abutment block 54 can be retracted into the clearance groove. Then, by rotating the second threaded connector 6, the second threaded connector 6 and the first threaded connector 51 can be separated.

[0037] In this embodiment, when air flows, the air applies pressure to the inner arc surface of the rubber hose 52, causing it to abut against the inner arc surface of the abutment block 54. The snap ring 53 and the abutment block 54 clamp the extended rubber sheet 56, thereby preventing air from flowing to the connection between the first threaded joint 51 and the second threaded joint 6, thus improving the sealing effect.

[0038] Example 2

[0039] Based on Example 1, this example proposes a foamed soft tubing, such as... Figure 1 and Figure 3 As shown, the outer wall of the second threaded joint 6 is slidably connected with a positioning component 7. The positioning component 7 includes a pressing inclined surface 71 and a positioning groove 73. The pressing inclined surface 71 slides on the outer arc surface of the second threaded joint 6. The positioning groove 73 is opened at the end of the pressing inclined surface 71. The middle part of the pressing inclined surface 71 contacts the separating rod 57.

[0040] The extrusion ramp 71 slides and uses the positioning groove 73 to push the separating rod 57 against the inside of the second threaded joint 6 so that the two abutment blocks 54 merge and the extrusion ramp 71 positions the separating rod 57.

[0041] The end of the separating rod 57 adopts a hemispherical structure, and a positioning ring 72 is provided in the middle of the extrusion slope 71. The separating rod 57 is engaged with the positioning ring 72.

[0042] In this embodiment, the separation rod 57 is engaged with the positioning ring 72 to position the extrusion slope 71, so that the extrusion slope 71 always applies a pushing force to the positioning ring 72, so that the two abutment blocks 54 are in a combined state, preventing the extrusion slope 71 from sliding directly on the second threaded joint 6, thus maintaining the stability of the position of the abutment block 54 and preventing gaps from being generated, which could lead to air leakage.

[0043] The above specific embodiments are merely several optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A foamed flexible tubing, characterized in that, include: A main foaming hose (1) for conveying air, wherein multiple annular steel wires (4) are fixedly installed inside the main foaming hose (1), and a second threaded connector (6) is provided at the end of the main foaming hose (1). The sealing assembly (5) includes a first threaded connector (51), a rubber hose (52), a snap ring (53), and a contact block (54). The rubber hose (52) is fixedly installed on the inner wall of the first threaded connector (51) near its end. The snap ring (53) is fixedly installed on the outer arc surface of the rubber hose (52) near its end. Two symmetrically arranged contact blocks (54) are slidably connected to the inner wall of the second threaded connector (6). The side of the snap ring (53) contacts the contact block (54). The first threaded connector (51) is fixedly installed at the end of the main foaming hose (1), and the outer wall of the first threaded connector (51) is threadedly connected to the second threaded connector (6).

2. The foamed flexible tubing according to claim 1, characterized in that: The rubber hose (52) has a horn-shaped structure. Air flows from the first threaded joint (51) into the second threaded joint (6). The air acts on the inner arc surface of the rubber hose (52). The rubber hose (52) extends into the interior of the second threaded joint (6). The outer arc surface of the rubber hose (52) contacts the abutment block (54).

3. The foamed flexible tubing according to claim 1, characterized in that: The abutment block (54) adopts a semi-circular ring structure, and the two abutment blocks (54) form a ring. An extension rubber sheet (56) is fixedly installed on the inner wall of the second threaded joint (6), and the end of the extension rubber sheet (56) extends between the snap ring (53) and the abutment block (54).

4. The foamed flexible tubing according to claim 1, characterized in that: The inner wall of the second threaded connector (6) is provided with a clearance groove. When the abutment block (54) is fully retracted into the clearance groove, the inner arc surface of the abutment block (54) is flush with the inner arc surface of the second threaded connector (6).

5. The foamed flexible tubing according to claim 1, characterized in that: The abutment block (54) is fixedly mounted with a separation rod (57) at one end away from the rubber hose (52). The end of the separation rod (57) extends to the outside of the second threaded connector (6). A spring plate (55) is elastically connected between the end of the abutment block (54) and the second threaded connector (6). The spring plate (55) is misaligned with the separation rod (57).

6. The foamed flexible tubing according to claim 5, characterized in that: The outer wall of the second threaded joint (6) is slidably connected with a positioning component (7). The positioning component (7) includes an extrusion inclined surface (71) and a positioning groove (73). The extrusion inclined surface (71) slides on the outer arc surface of the second threaded joint (6). The end of the extrusion inclined surface (71) is provided with a positioning groove (73). The middle part of the extrusion inclined surface (71) contacts the separating rod (57).

7. The foamed flexible tubing according to claim 6, characterized in that: The end of the separating rod (57) adopts a hemispherical structure, and a positioning ring (72) is provided in the middle of the extrusion slope (71). The separating rod (57) is engaged with the positioning ring (72).

8. The foamed flexible tubing according to claim 1, characterized in that: A flexible movable tube (3) is fixedly installed at the end of the main foaming hose (1), and a secondary foaming hose (2) is fixedly installed at the end of the flexible movable tube (3). The steel wire (4) inside the main foaming hose (1) extends into the interior of the secondary foaming hose (2). The inner walls of the main foaming hose (1), the secondary foaming hose (2) and the flexible movable tube (3) are all coated with a lubricating coating.

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