Leakage-free hose connector for connecting hoses with different pipe diameters
The design of the swivel and snap-fit structure solves the problems of twisting and leakage caused by the rotation of the hose due to the hose joint, achieving a stable connection and sealing effect, and is suitable for connecting hose joints of different pipe diameters.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-07
AI Technical Summary
Existing hose fittings for connecting different pipe diameters are prone to twisting and deformation when rotated, affecting the smooth flow of water, and the connection is prone to loosening and leakage, which increases the risk, especially in high-pressure water transmission scenarios.
It adopts a swivel and snap-fit structure. The connection is achieved by the swivel driving the snap-fit to rotate. Combined with the inner sleeve and sealing ring design, it ensures that the hose does not rotate with the connector, enhancing the connection stability and sealing.
It avoids hose twisting and deformation, ensures smooth water flow, reduces leakage, and enhances the stability and sealing of the connection, making it suitable for high-pressure water transmission scenarios.
Smart Images
Figure CN224094021U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a hose joint, concretely is a connect different pipe diameter no drip hose joint, belongs to the technical field of hose joint. BACKGROUND
[0002] The no drip hose joint of connecting different pipe diameters is a kind of pipe fitting that can realize reliable connection between different thick and thin hoses and eliminate liquid leakage, and common types include reducing joint, split type quick connector and multifunctional combined joint, wherein the split type quick connector is composed of multiple components, including connecting head, nut and the like, and is provided with sealing ring inside, two hoses of different pipe diameters are respectively sleeved into the mounting assembly of corresponding connecting head, and protrusions and buckles are mounted on the two connecting heads, one of the connecting heads is rotated as needed, the protrusions on the connecting heads gradually approach and abut the buckles, thereby realizing the connection of the two connecting heads.
[0003] However, the hose connected with the connecting head is rotated when the connecting head is rotated, and the hose is repeatedly rotated, and the connection between the hose and the connecting head is prone to loosening due to rotation after long-term use, thereby causing water leakage, and the rotation of the connecting head with the hose is prone to causing the hose to be twisted, the internal flow passage of the twisted hose is narrowed or irregular, thereby affecting the smooth flow of water, increasing fluid resistance, and seriously hindering water flow, especially in high-pressure water delivery scenarios, the irregular rotation of the hose driven by the rotating connecting head is prone to causing the connection part between the hose and the connecting head to bear greater stress, thereby causing the connecting head to fall off and the water pipe to burst. SUMMARY
[0004] The utility model aims at solving the above-mentioned problems and provides a no drip hose joint of connecting different pipe diameters, which can avoid the twisting and deformation of the water pipe caused by the rotation of the connecting head with the water pipe, thereby ensuring the smooth flow of water, further enhancing the stability of the connection, and reducing the problems such as water leakage caused by loose connection.
[0005] The utility model realizes the above-mentioned purposes through the following technical solutions, a no drip hose joint of connecting different pipe diameters, comprising a first connecting head, the first connecting head is connected with a second connecting head through a fixing structure, the fixing structure comprises a swivel, the first connecting head is rotatably connected with a swivel, four buckles are fixedly connected on the swivel, four protrusions are fixedly connected on the second connecting head, the buckles abut the protrusions, the first connecting head and the second connecting head abut each other, the two ends of the protrusion are inclined surface structures, a groove is formed on the first connecting head, a second sealing ring is mounted on the second connecting head, the second sealing ring is clamped with the groove, a first hose is mounted on the first connecting head through one mounting structure, a second hose is mounted on the second connecting head through another mounting structure, the pipe diameter of the first hose is larger than that of the second hose.
[0006] Preferably, the four buckles are arranged in a circumferential array about the center of the swivel, and the cross section of the buckle is in a "U" shaped structure.
[0007] Preferably, four positioning columns are fixedly connected to the second joint, four positioning holes are formed in the first joint, and the positioning columns are inserted into the positioning holes.
[0008] Preferably, the mounting structure comprises an inner sleeve, and the inner sleeve is fixedly connected to the end of the first joint and the second joint away from each other, and the first hose and the second hose are respectively inserted into the two inner sleeves.
[0009] Preferably, the pipe diameter of the inner sleeve connected with the first hose is larger than that of the inner sleeve connected with the second hose, and the cross section of the inner sleeve is in an "L" shaped structure.
[0010] Preferably, the end of the first joint and the second joint is fixedly connected with a fixing sleeve, the outer wall of the first hose and the second hose is respectively in contact with the two fixing sleeves, and the outer part of the fixing sleeve is screwed with a nut.
[0011] Preferably, the end of the fixing sleeve away from the buckle is in a circular truncated cone structure, and the end of the nut away from the buckle is in a circular truncated cone structure.
[0012] Preferably, a plurality of notches are formed in the end of the fixing sleeve away from the buckle, and the plurality of notches are arranged in a circumferential array.
[0013] Preferably, the inner sleeve is provided with a first sealing ring, and the inner wall of the first hose and the second hose is respectively in contact with the two first sealing rings.
[0014] The first joint is rotatably connected with a swivel, the swivel is fixedly connected with four buckles, the second joint is fixedly connected with four protrusions, the buckle is in contact with the protrusion, the first joint and the second joint are in contact with each other, the buckle is driven to rotate by the swivel rotatably connected with the first joint, the water pipe is prevented from being twisted and deformed due to the rotation of the connecting head, the smoothness of the water flow is ensured, the two ends of the protrusion are in a bevel structure, the buckle and the protrusion are gradually in contact more closely, the stability of the connection of the two connecting heads is further enhanced, and the problems such as water leakage caused by loose connection are reduced. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a whole structure schematic view of the utility model;
[0016] Figure 2 It is a connecting structure schematic view of the first joint and the swivel of the utility model;
[0017] Figure 3The utility model discloses a first hose and inner sleeve pipe's connection structure schematic view shows,
[0018] Figure 4 For Figure 3 The A part structure amplification schematic view shows,
[0019] Figure 5 For Figure 3 The B part structure amplification schematic view shows.
[0020] In the drawing: 1, first butt joint, 2, second butt joint, 3, installation structure, 301, inner sleeve pipe, 302, fixed sleeve, 303, nut, 304, notch, 305, first sealing ring, 4, first hose, 5, second hose, 6, fixed structure, 601, swivel ring, 602, buckle, 603, protruding block, 604, positioning column, 605, positioning hole, 7, recess, 8, second sealing ring. Specific implementation
[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the range of protection of the utility model.
[0022] Please refer to Figures 1-5 The utility model discloses a connect different pipe diameter no drip hose joint, including first butt joint 1, first butt joint 1 is connected with second butt joint 2 through fixed structure 6, fixed structure 6 includes swivel ring 601, first butt joint 1 is rotatably connected with swivel ring 601, four buckles 602 are fixedly connected on swivel ring 601, four protruding blocks 603 are fixedly connected on second butt joint 2, buckle 602 and protruding block 603 resist, first butt joint 1 and second butt joint 2 resist each other, both ends of protruding block 603 are inclined plane structure, recess 7 is set up on first butt joint 1, second sealing ring 8 is installed on second butt joint 2, second sealing ring 8 and recess 7 are clamped, first hose 4 is installed on first butt joint 1 through one installation structure 3, second hose 5 is installed on second butt joint 2 through another installation structure 3, and the pipe diameter of first hose 4 is greater than the pipe diameter of second hose 5.
[0023] As a technical optimization of this utility model, the four buckles 602 are arranged in a circular array about the center of the rotating ring 601. The cross-section of the buckle 602 is U-shaped, so that the buckle 602 can closely abut against the protrusion 603. Four positioning posts 604 are fixedly connected to the second connector 2. Four positioning holes 605 are opened on the first connector 1. The positioning posts 604 are inserted into the positioning holes 605. The first connector 1 and the second connector 2 can be quickly positioned by the engagement of the positioning posts 604 and the positioning holes 605, so as to ensure accurate docking of the first connector 1 and the second connector 2.
[0024] As a technical optimization of this utility model, the installation structure 3 includes an inner sleeve 301. The opposite ends of the first connector 1 and the second connector 2 are both fixedly connected to the inner sleeve 301. The first flexible hose 4 and the second flexible hose 5 are respectively inserted into the two inner sleeves 301. The cross-section of the inner sleeve 301 is L-shaped. The inner sleeve 301 provides stable support for the flexible hose and prevents it from shaking or shifting after insertion, ensuring installation stability. This facilitates further reinforcement of the connection between the fixing sleeve 302 and the nut 303, and the first flexible hose... The diameter of the inner sleeve 301 connected to the first hose 4 is larger than the diameter of the inner sleeve 301 connected to the second hose 5, so that the two inner sleeves 301 can be adapted to two hoses with different diameters respectively, preventing loose connection or poor sealing due to mismatch in pipe diameter, thus meeting the connection requirements of hoses with different diameters. The inner sleeve 301 is equipped with a first sealing ring 305, and the two first sealing rings 305 respectively abut against the inner wall of the first hose 4 and the second hose 5. The setting of the first sealing ring 305 increases the sealing between the hose and the inner sleeve 301 and reduces the occurrence of water leakage.
[0025] As a technical optimization of this utility model, the ends of the first connector 1 and the second connector 2 are fixedly connected with fixing sleeves 302. The two fixing sleeves 302 respectively abut against the outer walls of the first hose 4 and the second hose 5. The fixing sleeves 302 are threaded with nuts 303. The end of the fixing sleeve 302 facing away from the buckle 602 has a frustum-shaped structure, and the end of the nut 303 facing away from the buckle 602 has a frustum-shaped structure. When the nut 303 is tightened, it generates a squeezing force on the fixing sleeve 302. The frustum-shaped structure makes the two fixing sleeves 302 tightly hug the outer walls of the two hoses, which greatly enhances the connection strength between the hose and the connector and effectively prevents the hose from falling off the connector due to external pulling during use.
[0026] As a technical optimization of this utility model, the fixed sleeve 302 has multiple notches 304 at one end facing away from the buckle 602. The multiple notches 304 are distributed in a circumferential array. The tight fit also helps to improve the sealing of the connection, reduce the possibility of liquid leakage from this part, and ensure the stability and reliability of the entire hose connection system in subsequent use.
[0027] In use, the first step is to install the two hoses onto the two connectors. During operation, first, a nut 303 matching the diameter of the first hose 4 is fitted over the outside of the first hose 4. Then, one end of the first hose 4 is inserted into the inner sleeve 301 on the first connector 1, which matches the diameter of the first hose. At this point, the first hose 4 is positioned between the inner sleeve 301 and the fixing sleeve 302. The first sealing ring 305 on the inner sleeve 301 abuts against the inner wall of the first hose 4, providing initial sealing and fixation. Next, the nut 303 fitted over the first hose 4 is slid towards the fixing sleeve 302. Then, the nut is rotated... 303. The nut 303 is screwed into the thread on the fixing sleeve 302. Since both the fixing sleeve 302 and the end of the nut 303 facing away from the buckle 602 are frustoconical, as the nut 303 is continuously tightened, it exerts a continuous compressive force on the fixing sleeve 302. The multiple notches 304 on the fixing sleeve 302 allow it to deform more flexibly under pressure, thus tightly fitting the outer wall of the first hose 4. This further enhances the strength of the connection between the first hose 4 and the first connector 1, and also helps the fixing sleeve 302 to better deform and fit the hose, thereby completing the connection of the first hose 4. After installing pipe 4, connect the second hose 5 to the mounting structure 3 on the second connector 2 in the same way. Then connect the two connectors by bringing the first connector 1 and the second connector 2 close together, aligning the positioning pin 604 on the second connector 2 with the positioning hole 605 on the first connector 1 and inserting it to provide initial positioning and ensure accurate docking. At this time, the first connector 1 and the second connector 2 abut against each other, and the second sealing ring 8 on the second connector 2 engages with the groove 7 on the first connector 1, further enhancing the sealing effect and preventing liquid leakage. Then rotate the rotating part on the first connector 1. The buckle 602 on the rotating ring 601 rotates accordingly. Since the two ends of the protrusion 603 are inclined, the buckle 602 gradually engages along the inclined surface of the protrusion 603 during rotation until the buckle 602 and the protrusion 603 are in tight contact, thus completing the fixed connection of the first connector 1 and the second connector 2. This realizes the connection and conduction between the first hose 4 and the second hose 5 with different diameters. The rotation of the buckle 602 by the rotating ring 601 avoids the first hose 4 from rotating and twisting when the first connector 1 directly drives the buckle 602 to rotate, thereby reducing the impact on the flow channel of the first hose 4.
[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A drip-free hose connector for connecting hoses of different diameters, comprising a first pair of connectors (1), characterized in that: The first connector (1) is connected to the second connector (2) through a fixing structure (6). The fixing structure (6) includes a rotating ring (601). The rotating ring (601) is rotatably connected to the first connector (1). Four buckles (602) are fixedly connected to the rotating ring (601). Four protrusions (603) are fixedly connected to the second connector (2). The buckles (602) abut against the protrusions (603). The first connector (1) and the second connector (2) abut against each other. The two ends of the protrusions (603) are inclined. A groove (7) is provided on the first connector (1). A second sealing ring (8) is installed on the second connector (2). The second sealing ring (8) engages with the groove (7). A first hose (4) is installed on the first connector (1) through one of the mounting structures (3). A second hose (5) is installed on the second connector (2) through another mounting structure (3). The diameter of the first hose (4) is larger than the diameter of the second hose (5).
2. The drip-free hose connector for connecting different pipe diameters according to claim 1, characterized in that: The four buckles (602) are arranged in a circular array about the center of the swivel (601), and the cross-section of the buckles (602) is U-shaped.
3. A drip-free hose connector for connecting different pipe diameters according to claim 1, characterized in that: The second connector (2) is fixedly connected with four positioning pins (604), and the first connector (1) is provided with four positioning holes (605). The positioning pins (604) are inserted into the positioning holes (605).
4. A drip-free hose connector for connecting different pipe diameters according to claim 1, characterized in that: The installation structure (3) includes an inner sleeve (301). The inner sleeve (301) is fixedly connected to the opposite ends of the first connector (1) and the second connector (2). The first hose (4) and the second hose (5) are respectively inserted into the two inner sleeves (301).
5. A drip-free hose connector for connecting different pipe diameters according to claim 4, characterized in that: The inner sleeve (301) connected to the first hose (4) has a larger diameter than the inner sleeve (301) connected to the second hose (5), and the cross-section of the inner sleeve (301) is "L" shaped.
6. A drip-free hose connector for connecting different pipe diameters according to claim 4, characterized in that: The ends of the first connector (1) and the second connector (2) are fixedly connected with a fixing sleeve (302). The two fixing sleeves (302) respectively abut against the outer walls of the first hose (4) and the second hose (5). The fixing sleeves (302) are threaded with nuts (303).
7. A drip-free hose connector for connecting different pipe diameters according to claim 6, characterized in that: The end of the fixing sleeve (302) facing away from the buckle (602) has a frustum-shaped structure, and the end of the nut (303) facing away from the buckle (602) has a frustum-shaped structure.
8. A drip-free hose connector for connecting different pipe diameters according to claim 7, characterized in that: The fixing sleeve (302) has multiple notches (304) at one end facing away from the buckle (602), and the multiple notches (304) are distributed in a circumferential array.
9. A drip-free hose connector for connecting different pipe diameters according to claim 5, characterized in that: The inner sleeve (301) is equipped with a first sealing ring (305), and the two first sealing rings (305) respectively abut against the inner walls of the first hose (4) and the second hose (5).