A rubber tube joint seal

Abstract

This utility model relates to the field of rubber hose joint sealing technology, specifically a rubber hose joint sealing component, including a rubber sealing sleeve. A conical sealing sleeve is fixedly installed at one end of the rubber sealing sleeve, and a spiral compression ring is threadedly connected to the end of the conical sealing sleeve away from the rubber sealing sleeve. Multiple annular ridges are fixedly provided on the inner wall of the rubber sealing sleeve. When the spiral compression ring is rotated, the thread converts the axial displacement into radial compression. The conical surface of the conical sealing sleeve is compressed, generating an initial sealing force. When the fluid pressure inside the pipe increases, the rubber expands further under pressure, and the conical surface of the conical sealing sleeve engages more deeply with the thread of the spiral compression ring, forming a positive feedback seal. At the same time, the pipe and the annular ridges fit more tightly. Furthermore, when the spiral compression ring is rotated, its internal thread advances along the conical surface of the conical sealing sleeve, converting the axial force into radial compression force, forcing both the conical sealing sleeve and the rubber sealing sleeve to fit tightly against the pipe, thereby significantly improving the sealing performance of the rubber hose joint.

Description

Technical Field

[0001] This utility model relates to a rubber tube joint seal, and more particularly to a rubber tube joint seal, belonging to the field of rubber tube joint sealing technology. Background Technology

[0002] Rubber hoses are pipes used for gas transportation. They are commonly used in gas welding, gas cutting, various gas shielded welding, plasma arc welding and cutting. Rubber hoses have the following properties: physiological inertness, UV resistance, ozone resistance, strong resilience, compression resistance without deformation, oil resistance, impact resistance, voltage resistance, and electrical conductivity.

[0003] Currently, common rubber hose joints typically use a single sealing plug structure for sealing. While this design can effectively block most gas leaks, it still has certain limitations. Specifically, traditional sealing plugs only provide a single sealing path and cannot completely eliminate the possibility of gas leakage. Their sealing performance may not meet higher usage requirements. In the long term, this single-path sealing method may also cause the sealing effect to gradually decline due to material aging or mechanical wear.

[0004] Therefore, there is an urgent need to improve a rubber hose joint seal to solve the aforementioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a rubber hose joint seal that can seal in multiple directions to achieve the best sealing effect.

[0006] To achieve the above objectives, the main technical solution adopted by this utility model includes: a rubber pipe joint seal, comprising a rubber sealing sleeve, a conical sealing sleeve fixedly installed at one end of the rubber sealing sleeve, a spiral compression ring threadedly connected to the other end of the conical sealing sleeve away from the rubber sealing sleeve, and a plurality of annular ridges fixedly provided on the inner wall of the rubber sealing sleeve.

[0007] Preferably, the conical sealing sleeve has the same inner diameter as the rubber sealing sleeve.

[0008] Preferably, the outer diameter of the conical sealing sleeve at the end furthest from the rubber sealing sleeve is larger than that at the end of the conical sealing sleeve closest to the rubber sealing sleeve.

[0009] Preferably, one end of the rubber sealing sleeve is slidably connected to a pipe, and the diameter of the pipe is smaller than the diameter of the rubber sealing sleeve.

[0010] Preferably, the outer wall of the pipe is in close contact with the annular ridge.

[0011] Preferably, the outer side of the pipe is provided with several sliding grooves, and several sliders are fixedly installed on the end of the rubber sealing sleeve away from the conical sealing sleeve.

[0012] Preferably, the slider is slidably connected to the groove.

[0013] Preferably, each of the sliders has a different width, and each of the grooves has a different width.

[0014] Preferably, the tapered sealing sleeve has a threaded groove on its outer side, and the tapered sealing sleeve is threadedly connected to the spiral clamping ring through the threaded groove.

[0015] Preferably, a retaining ring is provided on the spiral clamping ring, and the retaining ring is used to limit the position of the spiral clamping ring.

[0016] This utility model has at least the following beneficial effects:

[0017] 1. When the spiral compression ring is rotated, the thread converts the axial displacement into radial compression. The conical surface of the conical sealing sleeve is compressed to generate an initial sealing force. When the fluid pressure inside the pipe increases, the rubber expands further under pressure, and the conical surface of the conical sealing sleeve engages more deeply with the thread of the spiral compression ring, forming a positive feedback seal. At the same time, the pipe and the annular ridge fit more tightly. When the spiral compression ring is rotated, its internal thread advances along the conical surface of the conical sealing sleeve, converting the axial force into radial compression force, forcing both the conical sealing sleeve and the rubber sealing sleeve to fit tightly against the pipe, thereby greatly improving the sealing performance of the rubber pipe joint.

[0018] 2. By setting a tapered sealing sleeve to engage with the spiral compression ring through a threaded groove, and the inner thread of the spiral compression ring matches the threaded groove, and the thread profile is arc-shaped, which can reduce rubber wear. By setting a retaining spring installed at the end of the spiral compression ring, the elastic tension of the retaining spring continuously presses against the end face of the spiral compression ring to resist the thread retraction caused by vibration. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0020] Figure 1 This is a three-dimensional structural schematic diagram of a rubber tube joint seal in an embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the rubber sealing sleeve of a rubber tube joint seal in an embodiment of this utility model.

[0022] Figure 3This is a schematic diagram of the connection structure between the rubber sealing sleeve and the pipe of a rubber pipe joint seal in an embodiment of this utility model.

[0023] Figure 4 This is a schematic diagram of the connection structure between the retaining ring and the spiral clamping ring of a rubber tube joint seal in an embodiment of this utility model.

[0024] In the diagram, 1 is the pipe; 2 is the rubber sealing sleeve; 3 is the spiral clamping ring; 4 is the snap ring; 5 is the slider; 6 is the annular ridge; 7 is the conical sealing sleeve; 8 is the threaded groove; and 9 is the sliding groove. Detailed Implementation

[0025] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0026] Examples, such as Figures 1-4 As shown, a rubber hose fitting seal includes a rubber sealing sleeve 2. A conical sealing sleeve 7 is fixedly installed at one end of the rubber sealing sleeve 2. A spiral compression ring 3 is threadedly connected to the end of the conical sealing sleeve 7 away from the rubber sealing sleeve 2. Multiple annular ridges 6 are fixedly provided on the inner wall of the rubber sealing sleeve 2. By fixing multiple annular ridges 6 on the inner wall of the rubber sealing sleeve 2, when the rubber sealing sleeve 2 is slidably connected to the pipe 1, the pipe 1 will fit tightly against the annular ridges 6, enhancing the initial seal. Simultaneously, it can fill the microscopic unevenness of the pipe 1 surface. Furthermore, when the fluid pressure inside the pipe increases, the rubber undergoes Poisson expansion under pressure, and the radial contact pressure increases linearly with the pressure, further compressing the annular ridges 6, making the contact between the annular ridges 6 and the pipe 1 even tighter. It should be noted that... Pipeline 1 is in close contact with the annular ridge 6, thus preventing gas leakage from pipeline 1 through the annular ridge 6. A spiral compression ring 3 is threadedly connected to the end of the conical sealing sleeve 7 away from the rubber sealing sleeve 2. When the spiral compression ring 3 is rotated, the thread converts the axial displacement into radial compression, and the conical surface of the conical sealing sleeve 7 is compressed to generate an initial sealing force. When the fluid pressure inside the pipe increases, the rubber expands further under pressure, and the conical surface of the conical sealing sleeve 7 engages more deeply with the thread of the spiral compression ring 3, forming a positive feedback seal. Furthermore, when the spiral compression ring 3 is rotated, its internal thread advances along the conical surface of the conical sealing sleeve 7, converting the axial force into radial compression force, forcing both the conical sealing sleeve 7 and the rubber sealing sleeve 2 to be tightly attached to pipeline 1, thereby significantly improving the sealing performance of the rubber pipe joint.

[0027] like Figures 1-3As shown, the conical sealing sleeve 7 has the same inner diameter as the rubber sealing sleeve 2. The outer diameter of the end of the conical sealing sleeve 7 away from the rubber sealing sleeve 2 is larger than that of the end of the conical sealing sleeve 7 close to the rubber sealing sleeve 2. By setting the inner diameter of the conical sealing sleeve 7 to be the same as that of the rubber sealing sleeve 2, it is convenient to connect with the pipe 1. The outer surface of the conical sealing sleeve 7 is a conical surface (conical angle 5°~15°), which can provide better sealing under the action of the spiral compression ring 3. It should be noted that the outer surface of the rubber sealing sleeve 2 is also a conical surface.

[0028] like Figures 1-3 As shown, further, one end of the rubber sealing sleeve 2 is slidably connected to a pipe 1. The diameter of the pipe 1 is smaller than the diameter of the rubber sealing sleeve 2. The outer wall of the pipe 1 is tightly fitted with the annular ridge 6. Several grooves 9 are opened on the outer side of the pipe 1. Several sliders 5 are fixedly installed on the end of the rubber sealing sleeve 2 away from the conical sealing sleeve 7. The sliders 5 are slidably connected to the grooves 9. The width of each slider 5 is different, and the width of each groove 9 is different. By setting the width of each slider 5 and groove 9 to be different, the operator needs to connect the slider 5 with the groove 9 corresponding to the width, so as to ensure that there is no circumferential offset when the pipe 1 and the rubber sealing sleeve 2 are installed. At the same time, it can also prevent the rubber sealing sleeve 2 from sliding circumferentially when the spiral compression ring 3 rotates, ensuring that the extrusion pressure is evenly distributed.

[0029] like Figures 2-3 As shown, further, the tapered sealing sleeve 7 is provided with a threaded groove 8 on its outer side. The tapered sealing sleeve 7 is threadedly connected to the spiral compression ring 3 through the threaded groove 8. A retaining spring 4 is provided on the spiral compression ring 3. The retaining spring 4 is used to limit the position of the spiral compression ring 3. By setting the tapered sealing sleeve 7 to be threadedly connected to the spiral compression ring 3 through the threaded groove 8, and the internal thread of the spiral compression ring 3 matches the threaded groove 8, and the thread profile is arc-shaped, which can reduce rubber wear. By setting the retaining spring 4 to be installed at the end of the spiral compression ring 3, the elastic tension of the retaining spring 4 continuously presses against the end face of the spiral compression ring 3 to resist the thread retraction caused by vibration.

[0030] In this embodiment, as Figures 1-4 As shown, the principle of a rubber hose joint seal provided in this embodiment is as follows:

[0031] Workers slide the pipe 1 to the rubber sealing sleeve 2 and the conical sealing sleeve 7, making the outer surface of the pipe 1 tightly fit with the annular ridge 6. When the fluid pressure inside the pipe increases, the rubber undergoes Poisson expansion under pressure, and the radial contact pressure increases linearly with the pressure, further squeezing the annular ridge 6, making the contact between the annular ridge 6 and the pipe 1 even tighter. At the same time, when the spiral compression ring 3 is rotated, the thread converts the axial displacement into radial compression, and the conical surface of the conical sealing sleeve 7 is compressed to generate an initial sealing force. When the fluid pressure inside the pipe increases, the rubber expands further under pressure, and the conical surface of the conical sealing sleeve 7 engages more deeply with the thread of the spiral compression ring 3, forming a positive feedback seal. Furthermore, when the spiral compression ring 3 is rotated, its internal thread advances along the conical surface of the conical sealing sleeve 7, converting the axial force into radial compression force, forcing both the conical sealing sleeve 7 and the rubber sealing sleeve 2 to fit tightly against the pipe 1, thereby significantly improving the sealing performance of the rubber pipe joint.

[0032] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0033] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes that element.

[0034] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A rubber hose joint seal, comprising a rubber sealing sleeve (2), characterized in that: A conical sealing sleeve (7) is fixedly installed at one end of the rubber sealing sleeve (2). A spiral compression ring (3) is threadedly connected to the end of the conical sealing sleeve (7) away from the rubber sealing sleeve (2). Multiple annular ridges (6) are fixedly provided on the inner wall of the rubber sealing sleeve (2).

2. The rubber hose joint seal according to claim 1, characterized in that: The conical sealing sleeve (7) has the same inner diameter as the rubber sealing sleeve (2).

3. A rubber hose joint seal according to claim 1, characterized in that: The outer diameter of the end of the conical sealing sleeve (7) away from the rubber sealing sleeve (2) is larger than that of the end of the conical sealing sleeve (7) closer to the rubber sealing sleeve (2).

4. A rubber hose joint seal according to claim 3, characterized in that: One end of the rubber sealing sleeve (2) is slidably connected to a pipe (1), the diameter of the pipe (1) being smaller than the diameter of the rubber sealing sleeve (2).

5. A rubber hose joint seal according to claim 4, characterized in that: The outer wall of the pipe (1) is tightly fitted with the annular ridge (6).

6. A rubber hose joint seal according to claim 5, characterized in that: The outer side of the pipe (1) is provided with several grooves (9), and several sliders (5) are fixedly installed on the end of the rubber sealing sleeve (2) away from the conical sealing sleeve (7).

7. A rubber hose joint seal according to claim 6, characterized in that: The slider (5) is slidably connected to the groove (9).

8. A rubber hose joint seal according to claim 7, characterized in that: Each slider (5) has a different width, and each groove (9) has a different width.

9. A rubber hose joint seal according to claim 1, characterized in that: The tapered sealing sleeve (7) is provided with a threaded groove (8) on the outside, and the tapered sealing sleeve (7) is threadedly connected to the spiral clamping ring (3) through the threaded groove (8).

10. A rubber hose joint seal according to claim 1, characterized in that: A retaining ring (4) is provided on the spiral clamping ring (3), and the retaining ring (4) is used to limit the position of the spiral clamping ring (3).

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