High strength removable hose connection mandrel

Abstract

The application discloses a high-strength detachable hose connecting mandrel and belongs to the technical field of connecting mandrels. The mandrel body is internally provided with a flow channel for fluid passing. The mandrel body is provided with an adjustable anti-falling ring. The front end of the mandrel body is provided with a first sealing end. The first sealing end is provided with a first sealing ring. The inner wall of the mandrel body is provided with a second sealing ring. The rear end of the mandrel body is provided with a positioning step. A locking sleeve is connected to the positioning step. The application solves the problems that the existing hose connecting mandrel sealing system adopts a single-channel structure, is prone to leakage and poor in stability under high-pressure vibration working conditions, the anti-falling structure is fixedly designed and cannot be adjusted to adapt to different specifications of hose joints, the holding effect is limited, the overall connecting strength is insufficient, the disassembly and assembly are complicated, the components are prone to damage during replacement, the requirements of detachability, high strength and long service life cannot be met, and the market demand cannot be met.

Description

Technical Field

[0001] This invention belongs to the field of connecting mandrel technology, and particularly relates to a high-strength replaceable flexible hose connecting mandrel. Background Technology

[0002] Hose connection mandrels are specialized tooling components used in hose manufacturing and assembly processes. They are mainly used for hose forming support, joint press-fitting and positioning, and end sealing connections, ensuring that the hose maintains precise geometry and connection reliability during processing and use.

[0003] Existing connecting mandrels mostly employ a single-seal structure, which is prone to leakage under high pressure and vibration conditions, resulting in poor sealing stability. Their anti-detachment structures are mostly fixed designs, unable to be adjusted according to the specifications of the hose connector, limiting adaptability and tightening effectiveness, and easily leading to hose loosening. Furthermore, traditional connecting mandrels have low overall connection strength, are cumbersome to assemble and disassemble, and are prone to component damage during replacement, failing to meet the requirements of replaceability, high strength, and long service life, and thus failing to satisfy market demands. Summary of the Invention

[0004] The purpose of this invention is to address the problems of existing connecting mandrels, which mostly employ a single-seal structure, making them prone to leakage under high pressure and vibration conditions, resulting in poor sealing stability. Furthermore, their anti-detachment structures are often fixed designs, unable to be adjusted according to the specifications of the hose connector, limiting adaptability and tightening effectiveness, and easily leading to hose loosening. Simultaneously, traditional connecting mandrels have low overall connection strength, are cumbersome to assemble and disassemble, and are prone to component damage during replacement, failing to meet the requirements of replaceability, high strength, and long service life, and thus failing to meet market demands. Therefore, this invention proposes a high-strength, replaceable hose connecting mandrel.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a high-strength replaceable flexible hose connection mandrel, comprising a mandrel body with a flow channel inside for fluid passage, an adjustable anti-detachment ring on the mandrel body, a first sealing end at the front end of the mandrel body with a first sealing ring at the first sealing end, a second sealing ring on the inner wall of the mandrel body, and a positioning step at the rear end of the mandrel body, with a locking sleeve connected to the positioning step.

[0006] Furthermore, the first sealing end is tapered, and a first connecting groove is provided on the first sealing end, with the first sealing ring fitted inside the first connecting groove.

[0007] Furthermore, the aforementioned mandrel body is provided with threads, and an adjustable anti-loosening ring is screwed onto the threads in an adjustable position.

[0008] Furthermore, the inner wall of the front end of the aforementioned mandrel body is provided with a connecting surface, and a second connecting groove is provided on the connecting surface, with the second sealing ring connected in the second connecting groove.

[0009] Furthermore, the first and second sealing rings are arranged in a staggered manner.

[0010] Furthermore, a limiting ring is provided on the aforementioned mandrel body, and the limiting ring is located at the rear end of the thread.

[0011] Furthermore, the inner wall of the rear end of the aforementioned mandrel body is provided with a threaded surface for fixing and locking the outer sleeve.

[0012] Furthermore, the front end of the aforementioned positioning step is provided with an anti-detachment cone surface.

[0013] This invention provides a high-strength, replaceable hose connection mandrel. The mandrel has a first sealing ring on the outer side of its front end and a second sealing ring on its inner wall, with the two sealing rings staggered to form two independent seals, significantly improving the sealing and pressure resistance of the fluid connection and effectively preventing leakage. The tapered first sealing end at the front end facilitates quick alignment and insertion with the hose. Combined with an adjustable anti-detachment ring, the clamping position can be flexibly adjusted according to the specifications of different hose connectors, achieving high-strength clamping and anti-detachment, preventing the hose from falling off under high pressure and vibration conditions. The positioning step at the rear end provides a stable assembly reference for the locking sleeve, and the anti-detachment conical surface further enhances the locking force. The entire structure is replaceable, allowing for disassembly and replacement without damaging the hose or mandrel, making maintenance convenient and highly reusable. The threaded section allows for adjustment of the anti-detachment ring's position, and the limiting ring restricts the maximum travel of the anti-detachment ring, preventing excessive screwing that could affect the seal and assembly, ensuring adjustment accuracy and safety.

[0014] Therefore, this embodiment has the following advantages compared to the prior art:

[0015] A high-strength, replaceable hose connection mandrel solves the problems of existing hose connection mandrel sealing systems, which use a single-channel structure, are prone to leakage and have poor stability under high-pressure vibration conditions; the anti-detachment structure is a fixed design, which cannot be adjusted to adapt to different specifications of hose connectors, and the limited clamping effect leads to the risk of loosening; the overall connection strength is insufficient, disassembly and assembly are cumbersome, and components are easily damaged during replacement, making it difficult to meet the requirements of replaceability, high strength, and long service life, and thus failing to meet market demands. The connection mandrel of this invention, through its internal and external double sealing, adjustable anti-detachment, conical guide positioning, and detachable locking structure design, achieves a high-strength, high-sealing, easy-to-disassemble, and highly versatile hose quick connection effect, suitable for various working conditions, with strong practicality and broad application prospects. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A three-dimensional high-strength replaceable flexible hose connecting mandrel Figure 1 .

[0018] Figure 2 A three-dimensional high-strength replaceable flexible hose connecting mandrel Figure 2 .

[0019] Figure 3 This is a cross-sectional view of a high-strength, replaceable hose connection mandrel.

[0020] Figure 4 A three-dimensional high-strength replaceable flexible hose connecting mandrel Figure 3 .

[0021] Legend:

[0022] 1-Mandrel body; 2-Adjustable anti-detachment ring; 3-First sealing end; 4-First sealing ring; 5-Second sealing ring; 6-Positioning step; 7-First connecting groove; 8-Thread; 9-Connecting surface; 10-Second connecting groove; 11-Limiting ring; 12-Threaded surface; 13-Anti-detachment conical surface. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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 are within the scope of protection of the present invention.

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0027] In the description of the embodiments of the present invention, it should be noted that the terms "upper" and "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention 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. Therefore, they should not be construed as limiting the present invention.

[0028] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 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 invention based on the specific circumstances.

[0029] Example 1

[0030] Please see Figure 1-4 The present invention provides a technical solution: a high-strength replaceable flexible hose connection mandrel, including a mandrel body 1, which has a flow channel for fluid passage, an adjustable anti-detachment ring 2 on the mandrel body 1, a first sealing end 3 at the front end of the mandrel body 1, a first sealing ring 4 at the first sealing end 3, a second sealing ring 5 on the inner wall of the mandrel body 1, and a positioning step 6 at the rear end of the mandrel body 1, with a locking sleeve connected to the positioning step 6.

[0031] Specifically, see Figure 1-4 The first sealing end 3 is tapered, and a first connecting groove 7 is provided on the first sealing end 3. The first sealing ring 4 is fitted inside the first connecting groove 7. This forms two independent seals, one inside and one outside, which greatly improves the sealing performance and pressure resistance of the fluid connection and effectively prevents leakage.

[0032] Specifically, see Figure 1-4 The mandrel body 1 is provided with a thread 8, and the adjustable anti-detachment ring 2 is screwed onto the thread 8 in an adjustable position. The clamping position can be flexibly adjusted according to the specifications of different hose connectors to achieve high-strength clamping and anti-detachment, making it highly applicable.

[0033] This invention provides a high-strength, replaceable hose connection mandrel. The mandrel has a first sealing ring on the outer side of its front end and a second sealing ring on its inner wall, with the two sealing rings staggered to form two independent seals, significantly improving the sealing and pressure resistance of the fluid connection and effectively preventing leakage. The tapered first sealing end at the front end facilitates quick alignment and insertion with the hose. Combined with an adjustable anti-detachment ring, the clamping position can be flexibly adjusted according to the specifications of different hose connectors, achieving high-strength clamping and anti-detachment, preventing the hose from falling off under high pressure and vibration conditions. The positioning step at the rear end provides a stable assembly reference for the locking sleeve, and the anti-detachment conical surface further enhances the locking force. The entire structure is replaceable, allowing for disassembly and replacement without damaging the hose or mandrel, making maintenance convenient and highly reusable. The threaded section allows for adjustment of the anti-detachment ring's position, and the limiting ring restricts the maximum travel of the anti-detachment ring, preventing excessive screwing that could affect the seal and assembly, ensuring adjustment accuracy and safety.

[0034] Therefore, this embodiment has the following advantages compared to the prior art:

[0035] A high-strength, replaceable hose connection mandrel solves the problems of existing hose connection mandrel sealing systems, which use a single-channel structure, are prone to leakage and have poor stability under high-pressure vibration conditions; the anti-detachment structure is a fixed design, which cannot be adjusted to adapt to different specifications of hose connectors, and the limited clamping effect leads to the risk of loosening; the overall connection strength is insufficient, disassembly and assembly are cumbersome, and components are easily damaged during replacement, making it difficult to meet the requirements of replaceability, high strength, and long service life, and thus failing to meet market demands. The connection mandrel of this invention, through its internal and external double sealing, adjustable anti-detachment, conical guide positioning, and detachable locking structure design, achieves a high-strength, high-sealing, easy-to-disassemble, and highly versatile hose quick connection effect, suitable for various working conditions, with strong practicality and broad application prospects.

[0036] Example 2:

[0037] See Figure 1-4 The figure shows a high-strength replaceable flexible hose connecting mandrel provided in Embodiment 2 of the present invention. Based on the above embodiments, the following technical solutions are further improved: the inner wall of the front end of the mandrel body 1 is provided with a connecting surface 9, the connecting surface 9 is provided with a second connecting groove 10, and the second sealing ring 5 is connected in the second connecting groove 10.

[0038] Example 3:

[0039] See Figure 1-4 The figure shows a high-strength replaceable hose connection mandrel provided in Embodiment 3 of the present invention. Based on the above embodiments, the following technical solutions are further improved: the first sealing ring 4 and the second sealing ring 5 are staggered.

[0040] Example 4:

[0041] See Figure 1-4 The figure shows a high-strength replaceable hose connection mandrel provided in Embodiment 4 of the present invention. Based on the above embodiments, the following technical solutions are further improved in this embodiment: a limiting ring 11 is provided on the mandrel body 1, and the limiting ring 11 is located at the rear end of the thread 8.

[0042] Example 5:

[0043] See Figure 1-4 The figure shows a high-strength replaceable flexible hose connection mandrel provided in Embodiment 5 of the present invention. Based on the above embodiments, the following technical solutions are further improved in this embodiment: the inner wall of the rear end of the mandrel body 1 is provided with a screw surface 12 for fixing and locking the outer sleeve.

[0044] Example 6:

[0045] See Figure 1-4 The figure shows a high-strength replaceable flexible hose connection mandrel provided in Embodiment Six of the present invention. Based on the above embodiments, this embodiment further improves upon the following technical solution: the front end of the positioning step 6 is provided with an anti-detachment conical surface 13. The rear positioning step provides a stable assembly reference for the locking sleeve, and the anti-detachment conical surface further enhances the locking force.

[0046] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-strength, replaceable flexible hose connection mandrel, characterized in that, The device includes a mandrel body (1) with a flow channel for fluid passage. An adjustable anti-detachment ring (2) is provided on the mandrel body (1). A first sealing end (3) is provided at the front end of the mandrel body (1). A first sealing ring (4) is provided at the first sealing end (3). A second sealing ring (5) is provided on the inner wall of the mandrel body (1). A positioning step (6) is provided at the rear end of the mandrel body (1). A locking sleeve is connected to the positioning step (6).

2. The high-strength replaceable flexible hose connecting mandrel according to claim 1, characterized in that, The first sealing end (3) is conical, and a first connecting groove (7) is provided on the first sealing end (3). The first sealing ring (4) is sleeved in the first connecting groove (7).

3. The high-strength replaceable flexible hose connecting mandrel according to claim 1, characterized in that, The spindle body (1) is provided with a thread (8), and the adjustable anti-loosening ring (2) is screwed onto the thread (8) in an adjustable position.

4. A high-strength replaceable flexible hose connecting mandrel according to claim 3, characterized in that, The inner wall of the front end of the mandrel body (1) is provided with a connecting surface (9), and a second connecting groove (10) is provided on the connecting surface (9). The second sealing ring (5) is connected in the second connecting groove (10).

5. A high-strength replaceable flexible hose connecting mandrel according to claim 4, characterized in that, The first sealing ring (4) and the second sealing ring (5) are arranged in a staggered manner.

6. A high-strength replaceable flexible hose connecting mandrel according to claim 3, characterized in that, A limiting ring (11) is provided on the main body (1) of the mandrel, and the limiting ring (11) is located at the rear end of the thread (8).

7. A high-strength replaceable flexible hose connecting mandrel according to claim 4, characterized in that, The inner wall of the rear end of the mandrel body (1) is provided with a screw surface (12) for fixing and locking the outer sleeve.

8. A high-strength replaceable flexible hose connecting mandrel according to claim 4, characterized in that, The positioning step (6) is provided with an anti-detachment cone surface (13) at its front end.

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