Quick hose connector

Abstract

The utility model relates to a hose quick connector which comprises a connector sleeve, a clamp and a nut, the connector sleeve is provided with a through inner cavity, supporting inner pipes are fixed to the two ends of the connector sleeve and inserted into a hose, the outer walls of the supporting inner pipes abut against the inner wall of the hose, and the clamp comprises a fixing ring and a plurality of pressing pieces. The multiple pressing pieces are fixed to one side of the fixing ring and distributed at intervals in the circumferential direction of the fixing ring, the fixing ring is arranged on the outer wall of the supporting inner pipe in a sleeving mode, the inner walls of the pressing pieces abut against the outer wall of the hose, the nut is pressed on the outer side of the hoop, and the nut is in threaded connection with the connector sleeve. According to the hose quick connector, the two hoses can be stably connected in a sealed mode, the hose quick connector and the hose can be repeatedly used, the cost is effectively reduced, operation is convenient and fast, and good practical performance is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of pipe joints, and in particular to a hose quick joint. Background Art

[0002] In daily life, there is often a problem that the hose is not long enough to meet the usage requirements. Extending the hose is a solution. Users can choose a suitable connection method according to the actual situation and the characteristics of the connection.

[0003] In the related art, hose ducts can be wrapped by injection molding, where the hose is cut into fixed lengths, placed in a mold cavity, and then molded into the required product structure by secondary injection molding. The injection molding wrapping method has a better sealing effect, but it requires molds and injection molding, so the cost is very high. Utility Model Content

[0004] In order to improve the problems of high cost and complicated operation of hose connectors, the present application provides a hose quick connector.

[0005] The present application provides a hose quick connector, which adopts the following technical solution:

[0006] A hose quick connector comprises a joint sleeve, a clamp and a nut, the joint sleeve is provided with a through inner cavity, support inner tubes are fixed at both ends of the joint sleeve, the support inner tube is inserted into the hose, the outer wall of the support inner tube abuts against the inner wall of the hose, the clamp comprises a fixed ring and a plurality of clamping sheets, the plurality of clamping sheets are fixed on one side of the fixed ring, the clamping sheets are distributed at intervals along the circumference of the fixed ring, the fixed ring is sleeved on the outer wall of the support inner tube, the inner wall of the clamping sheet abuts against the outer wall of the hose, the nut is pressed against the outside of the clamp, and the nut is threadedly connected to the joint sleeve.

[0007] By adopting the above technical solution, during the use of the hose quick connector, first unscrew the nuts on both sides from the connector sleeve, put the clamp and nut on the hoses to be connected at both ends, then put the hose on the outer wall of the supporting inner tube, push the clamp, and then fix the nut on the connector sleeve through threaded cooperation. The nut is pressed against the outside of the clamp, and the clamp can be squeezed by rotating the nut, so that the clamp moves toward the direction of the hose, and cooperates with the support of the supporting inner tube inside the hose to achieve the locking and connection of the hoses on both sides. After use, unscrew the nuts at both ends and take out the hose. The operation is simple, and the clamping method does not damage the hose and the hose quick connector, so the hose quick connector and the hose can be reused, effectively reducing costs.

[0008] Preferably, a groove is formed on the outer peripheral wall of the supporting inner tube, a sealing ring is embedded in the groove, and the sealing ring abuts against the inner wall of the hose.

[0009] By adopting the above technical solution, the sealing ring abuts against the inner wall of the hose, which effectively increases the sealing of the connection between the supporting inner tube and the hose, thereby achieving the effect of preventing water in the hose from leaking out.

[0010] Preferably, the inner wall of the compression plate is provided with saw teeth, the saw teeth are located at an end of the compression plate away from the fixing ring, and the saw teeth abut against the outer wall of the hose.

[0011] By adopting the above technical solution, the serrations can increase the friction when the outer wall of the hose abuts against the inner wall of the clamping plate, making the clamping plate clamp the outer wall of the hose more firmly, effectively improving the stability of the connection between the hose quick connector and the hose.

[0012] Preferably, an outer wall of the support inner tube away from the joint sleeve is formed with an insertion slope, the insertion slope is a conical surface, and the outer wall of the support inner tube is gradually tightened toward the axial direction of the support inner tube along the direction of the joint sleeve toward the support inner tube.

[0013] By adopting the above technical solution, the hose can be sleeved on the outer wall of the supporting inner tube under the guidance of the plugging inclined surface, thereby improving the convenience of using the hose quick connector.

[0014] Preferably, the outer wall of the clamping sheet is provided with a pressure-bearing surface, and the inner wall of the nut is provided with a clamping surface, and the pressure-bearing surface and the clamping surface abut against each other.

[0015] By adopting the above technical solution, the pressure-bearing surface of the outer wall of the clamping plate and the clamping surface of the inner wall of the nut abut against each other. The planar contact can make the pressure of the clamping surface act more evenly on the pressure-bearing surface, making the force on the pressure-bearing surface more uniform, further reducing the risk of parts damage.

[0016] Preferably, one end of the fixing ring away from the compression plate abuts against the side wall of the joint sleeve, and one end of the fixing ring close to the compression plate abuts against the end of the hose.

[0017] By adopting the above technical solution and limiting the relative positions of the fixing ring, the connector sleeve and the hose, the contact area between the outer wall of the hose and the inner wall of the compression plate, and between the inner wall of the hose and the outer wall of the connector sleeve is maximized, so that the hose quick connector clamps the hose more firmly.

[0018] Preferably, the inner wall of the nut is provided with an internal thread, the outer wall of the joint sleeve is provided with an external thread, and the nut and the joint sleeve are threadably matched.

[0019] By adopting the above technical solution, the nut and the joint sleeve thread cooperate to achieve the locking of the hose quick connector, making the operation more convenient.

[0020] Preferably, the joint sleeve and the supporting inner tube are connected in an integrally formed manner.

[0021] By adopting the above technical solution, the one-piece connection method can further reduce the manufacturing cost.

[0022] Preferably, the compression sheets are evenly distributed around the fixing ring.

[0023] By adopting the above technical solution, the compression plates are evenly distributed around the fixing ring, so that when the compression plates are tightened inwardly, the force can act evenly on the outer wall of the hose, so that the outer wall of the hose is evenly stressed, which can extend the service life of the hose and the hose quick connector.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. Unscrew the nuts on both sides from the joint sleeve, put the clamp and the nut on the hoses to be connected at both ends, put the hose on the outer wall of the supporting inner tube, push the clamp to make the clamp abut against the end of the joint sleeve, and then fix the nut on the joint sleeve through threaded cooperation, so as to realize the connection of two sections of hose using the hose quick connector, which is easy to operate; and the clamping method does not damage the hose and the hose quick connector, so the quick hose connector and the hose can be reused, effectively reducing costs.

[0026] 2. The serrations can increase the friction between the outer wall of the hose and the inner wall of the clamping plate, making the clamping plate clamp the outer wall of the hose more firmly, effectively improving the stability of the connection between the hose quick connector and the hose.

[0027] 3. By adding a sealing ring to the outer wall of the supporting inner tube, the sealing performance of the connection between the hose quick connector and the hose is effectively increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application;

[0029] Figure 2 is an exploded view of the overall structure of Example 1 of the present application;

[0030] Figure 3 yes Figure 1 Full cutaway view of the side view;

[0031] Figure 4 yes Figure 3 A partial enlarged schematic diagram of part A.

[0032] Figure numerals: 1. Connector sleeve; 11. Limiting ring; 12. External thread; 2. Nut; 21. Internal thread; 22. Pressing surface; 3. Hose; 4. Clamp; 41. Pressing plate; 411. Sawtooth; 412. Pressure-bearing surface; 42. Fixing ring; 5. Support inner tube; 51. Groove; 52. Insertion slope; 6. Sealing ring. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1 -Attached Figure 4 This application is described in further detail.

[0034] The embodiment of the present application discloses a hose quick connector.

[0035] Reference Figure 1 and Figure 2 A hose quick connector includes a connector sleeve 1, a clamp 4 and a nut 2. The connector sleeve 1 is the main part of the hose quick connector. The connector sleeve 1 is provided with a through inner cavity. Both ends of the connector sleeve 1 are provided with a supporting inner tube 5 for plugging with a hose 3. The outer wall of the supporting inner tube 5 abuts against the inner wall of the hose 3 to support the inner wall of the hose 3. The clamp 4 is sleeved on the outer wall of the supporting inner tube 5, and the nut 2 is pressed on the outside of the clamp 4. At the same time, the nut 2 is threadedly matched with the connector sleeve 1. The clamp 4 can be squeezed by rotating the nut 2, so that the clamp 4 moves toward the direction of the hose 3, and cooperates with the support of the supporting inner tube 5 inside the hose 3 to achieve locking and connection of the hoses 3 on both sides.

[0036] In this embodiment, the joint sleeve 1 and the supporting inner tube 5 are connected in an integrally formed manner. In other embodiments, the two may also be provided separately and connected in a screw-fixing manner.

[0037] Reference Figure 2 and Figure 3 The outer peripheral wall of the supporting inner tube 5 away from the joint sleeve 1 is provided with an annular groove 51, and a sealing ring 6 is embedded in the groove 51. When the outer wall of the supporting inner tube 5 is pressed against the inner wall of the hose 3, the sealing ring 6 abuts against the inner wall of the hose 3, which can increase the sealing performance of the connection between the supporting inner tube 5 and the hose 3, so as to prevent the water in the hose 3 from leaking out. In this embodiment, the sealing ring 6 is an O-type sealing ring.

[0038] An outer wall of the supporting inner tube 5 away from the joint sleeve 1 is formed with an insertion slope 52, and the insertion slope 52 is a conical surface, that is, the outer wall of the supporting inner tube 5 is gradually tightened toward the axial direction of the supporting inner tube 5 along the direction of the joint sleeve 1 toward the supporting inner tube 5, so that the end face of the supporting inner tube 5 is inclined, so as to facilitate the insertion of the supporting inner tube 5 into the hose 3 to be connected.

[0039] Specifically, the clamp 4 includes a fixing ring 42 and a plurality of compression pieces 41. The fixing ring 42 is annular, and a plurality of compression pieces 41 are fixed on one side of the fixing ring 42. The compression pieces 41 are spaced apart along the circumference of the fixing ring 42. The fixing ring 42 is sleeved on the outer wall of the supporting inner tube 5. The inner wall of the compression piece 41 abuts against the outer wall of the hose 3, and the nut 2 acts on the outer wall of the compression piece 41. By rotating the nut 2, the compression piece 41 is deformed under the pressure of the nut 2, and the compression piece 41 shrinks and tightens inward toward the hose 3 to squeeze the outer wall of the hose 3.

[0040] When the clamp 4 is sleeved onto the outer wall of the supporting inner tube 5, the end of the fixing ring 42 away from the compression piece 41 abuts against the side wall of the joint sleeve 1, and the end of the fixing ring 42 close to the compression piece 41 abuts against the end of the hose 3. When the nut 2 is turned, the nut 2 gradually moves toward the direction of the joint sleeve 1 and gradually squeezes the compression piece 41. Due to the abutment and limiting of the fixing ring 42 and the joint sleeve 1, the compression piece 41 begins to shrink and tighten, and at the same time cooperates with the outer wall of the supporting inner tube 5 to support the inner wall of the hose 3, so as to achieve the clamping of both sides of the hose 3.

[0041] Reference Figure 3 and Figure 4 Specifically, a pressure-bearing surface 412 is provided on the outer wall of the end of the compression plate 41 away from the fixing ring 42, and a compression surface 22 is provided on the inner wall of the end of the nut 2 away from the joint sleeve 1, and the pressure-bearing surface 412 and the compression surface 22 abut against each other. By rotating the nut 2, the compression surface 22 of the nut 2 acts on the pressure-bearing surface 412 of the compression plate 41, and the compression surface 22 gradually squeezes the pressure-bearing surface 412, so that the compression plate 41 moves toward the direction of the hose 3 to clamp the hose 3. In this embodiment, the compression surface 22 of the inner wall of the nut 2 and the pressure surface 412 of the outer wall of the compression plate 41 are mutually matching conical surfaces, and the conical surface can make the pressure of the compression surface 22 of the nut 2 act more evenly on the pressure-bearing surface 412 of the compression plate 41, so that the pressure-bearing surface 412 is evenly stressed, thereby reducing the risk of parts damage.

[0042] Furthermore, the compression pieces 41 are evenly distributed on the fixing ring 42. When the compression pieces 41 are tightened inward, the outer wall of the hose 3 is evenly stressed, which can extend the service life of the hose 3 and the hose quick connector. In addition, the hose 3 is connected to the hose quick connector by clamping the hose 3 with the support inner tube 5 and the clamp 4. The clamping method causes little damage to the end of the hose 3, so that the hose 3 can be reused.

[0043] At the same time, the inner wall of the clamping plate 41 is provided with a serration 41, and the serration 411 is located at the end of the clamping plate 41 away from the fixing ring 42. The serration 411 can increase the friction force when the outer wall of the hose 3 abuts against the inner wall of the clamping plate 41, so that the clamping plate 41 clamps the outer wall of the hose 3 more firmly, thereby improving the stability of the connection between the hose quick connector and the hose 3.

[0044] The inner wall of the nut 2 near the joint sleeve 1 is provided with an internal thread 21, and the outer walls at both ends of the joint sleeve 1 are provided with external threads 12, and the threads of the two cooperate to achieve the threaded connection between the nut 2 and the joint sleeve 1. When in use, the nut 2 is connected to the joint sleeve 1 through the thread, and the rotation of the nut 2 drives the pressing surface 22 to squeeze the pressure-bearing surface 412 of the pressing sheet 41, so that the pressing sheet 41 is pressed toward the hose 3.

[0045] A limit ring 11 is provided in the middle of the threads at both ends of the joint sleeve 1. The limit ring 11 can limit the rotation range of the nut 2 to prevent the nut 2 from over-rotating, thereby causing excessive squeezing of the clamp 41 and the hose 3, and can protect the clamp 4 and the hose 3.

[0046] The implementation principle of the embodiment of the present application is as follows: first, unscrew the nuts 2 on both sides from the joint sleeve 1, and sleeve the clamp 4 and the nut 2 on the hose 3 to be connected at both ends, then sleeve the hose 3 on the outer wall of the supporting inner tube 5, and push the clamp 4 so that the clamp 4 abuts against the end of the joint sleeve 1, and then rotate the nut 2, the pressing surface 22 of the nut 2 will squeeze the pressure-bearing surface 412 of the clamp 4 to tighten toward the hose 3, thereby pressing the hose 3 tightly against the supporting inner tube 5, and cooperating with the support of the supporting inner tube 5 inside the hose 3, so as to realize the locking and connection of the hose quick connector to both sides of the hose 3. At the same time, the O-ring is tightly abutted against the inner wall of the hose 3, so as to realize the sealed connection between the hose 3 and the hose quick connector.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A hose quick connector, characterized in that: The invention comprises a joint sleeve (1), a clamp (4) and a nut (2), wherein the joint sleeve (1) is provided with a through inner cavity, and a supporting inner tube (5) is fixed at both ends of the joint sleeve (1), the supporting inner tube (5) is inserted into a hose (3), and the outer wall of the supporting inner tube (5) abuts against the inner wall of the hose (3), the clamp (4) comprises a fixing ring (42) and a plurality of pressing plates (41), the plurality of pressing plates (41) are fixed to one side of the fixing ring (42), the pressing plates (41) are distributed at intervals along the circumference of the fixing ring (42), the fixing ring (42) is sleeved on the outer wall of the supporting inner tube (5), the inner wall of the pressing plate (41) abuts against the outer wall of the hose (3), the nut (2) is pressed against the outside of the clamp (4), and the nut (2) is threadedly connected to the joint sleeve (1).

2. A hose quick connector according to claim 1, characterized in that: The outer peripheral wall of the supporting inner tube (5) is provided with a groove (51), a sealing ring (6) is embedded in the groove (51), and the sealing ring (6) abuts against the inner wall of the hose (3).

3. A hose quick connector according to claim 1, characterized in that: The inner wall of the compression plate (41) is provided with saw teeth (411), the saw teeth (411) are located at an end of the compression plate (41) away from the fixing ring (42), and the saw teeth (411) are in contact with the outer wall of the hose (3).

4. A hose quick connector according to claim 1, characterized in that: An outer wall of the support inner tube (5) away from the joint sleeve (1) is formed with an insertion bevel (52), the insertion bevel (52) being a conical surface, and the outer wall of the support inner tube (5) gradually tightens in the direction of the axis of the support inner tube (5) along the direction from the joint sleeve (1) to the support inner tube (5).

5. The hose quick connector according to claim 1, characterized in that: The outer wall of the clamping sheet (41) is provided with a pressure-bearing surface (412), and the inner wall of the nut (2) is provided with a clamping surface (22), and the pressure-bearing surface (412) and the clamping surface (22) are in contact with each other.

6. A hose quick connector according to claim 1, characterized in that: One end of the fixing ring (42) away from the compression plate (41) abuts against the side wall of the joint sleeve (1), and one end of the fixing ring (42) close to the compression plate (41) abuts against the end of the hose (3).

7. The hose quick connector according to claim 1, characterized in that: The inner wall of the nut (2) is provided with an internal thread (21), the outer wall of the joint sleeve (1) is provided with an external thread (12), and the nut (2) and the joint sleeve (1) are threadably matched.

8. The hose quick connector according to claim 1, characterized in that: The joint sleeve (1) and the supporting inner tube (5) are connected in an integrally formed manner.

9. The hose quick connector according to claim 1, characterized in that: The compression sheets (41) are evenly distributed around the fixing ring (42).

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