Rotary joint of faucet

Abstract

The utility model discloses a faucet rotating joint which comprises an outer sleeve, a rotating mandrel pipe and a sealing element, a hollow water passing hole is formed in the rotating mandrel pipe, one end of the rotating mandrel pipe is provided with connecting threads, the other end of the rotating mandrel pipe is provided with a sealing connecting ring, and the outer sleeve is rotatably arranged outside the rotating mandrel pipe in a sleeved mode. The sealing element is arranged on the sealing connecting ring in a sleeving manner, one end of the sealing element extends into the outer sleeve, a positioning shaft shoulder and a limiting clamping table are arranged on the rotating core shaft tube, a rotating clamping ring is arranged at the limiting clamping table, the rotating clamping ring is connected with an elastic element, gear shifting positioning teeth are arranged on the rotating clamping ring, and a circle of tooth grooves are uniformly formed in the outer sleeve; and when the rotary core shaft tube rotates relative to the outer sleeve, the gear shifting positioning teeth are continuously and movably meshed with the tooth grooves. When the rotary core shaft tube rotates relative to the outer sleeve, the gear shifting positioning teeth are continuously and movably meshed with the tooth grooves to make clear gear shifting sound, and good gear shifting hand feeling can be kept; the device is convenient to process and assemble, is not easy to fatigue and wear in the use process, and is convenient for long-term use.

Description

Technical Field

[0001] This utility model relates to the field of bathroom pipe fittings technology, and in particular to a faucet rotary joint. Background Technology

[0002] Rotatable faucets typically include a faucet rotary joint, allowing the faucet spout to be moved to different positions for water dispensing. Existing faucet rotary joints generally consist of an inner tube and an outer tube, with the inner tube rotatably fitted inside the outer tube. For example, Chinese utility model patent CN211951766U discloses an improved insert joint, in which a cylinder with several positioning holes, a pin, and a spring are provided between the outer and inner tubes. During rotation, the spring pushes the pin head to dynamically engage with different positioning holes, preventing the inner and outer tubes from rotating relative to each other arbitrarily. This provides a shifting feel and produces a shifting sound when the inner tube rotates relative to the outer tube, and also improves the feel of rotation adjustment.

[0003] However, the springs and pins in this structure are prone to fatigue failure. After a period of use, the shifting sound and the feel of rotating the gear shifting mechanism will deteriorate due to wear, and improvements are needed. Utility Model Content

[0004] To address the aforementioned problems, the present invention aims to provide a faucet rotary connector with a simple and reliable structure, good sealing performance, high structural strength of parts, convenient processing and assembly, and the ability to produce a crisp shifting sound and maintain a good shifting feel during rotation.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A faucet rotary connector includes an outer sleeve, a rotating mandrel tube, and a sealing element. The rotating mandrel tube has a hollow water passage hole, one end of which has a connecting thread, and the other end has a sealing connecting ring. The outer sleeve is rotatably fitted over the rotating mandrel tube. The sealing element is fitted onto the sealing connecting ring, with one end extending into the outer sleeve. The rotating mandrel tube has a positioning shoulder and a limiting platen. A rotating retaining ring is provided at the limiting platen. The rotating retaining ring is connected to an elastic element and has shifting positioning teeth. A ring of evenly spaced toothed grooves is provided inside the outer sleeve on the second end face. When the rotating mandrel tube rotates relative to the outer sleeve tube, the shifting positioning teeth continuously engage with the toothed grooves.

[0007] Furthermore, the outer sleeve with the toothed groove has a limiting step inside for positioning the rotating retaining ring.

[0008] Furthermore, the other end of the outer sleeve is provided with a connecting sleeve, and the cavity of the connecting sleeve is provided with at least two elastic claws. The ends of the elastic claws are rotatably pressed against the inner step of the sealing connecting ring to bring the second end face of the outer sleeve close to the positioning shoulder.

[0009] Furthermore, a positioning nut is embedded in the outer sleeve.

[0010] Furthermore, the elastic element includes an elastic ring with an opening and an elastic shaft, and the rotating retaining ring has a groove for accommodating the elastic shaft. The elastic element presses the shift positioning teeth toward the groove through the elastic shaft.

[0011] Furthermore, the rotating retaining ring is provided with an anti-rotation stop that cooperates with the limiting retaining platform.

[0012] Furthermore, the sealing element is provided with a sealing sleeve and an inner sealing ring. The sealing sleeve extends into the connecting sleeve of the outer sleeve, and the inner sealing ring is sealed and engaged with the annular groove in the sealing connecting ring.

[0013] Furthermore, the sealing element is provided with an outer sealing ring.

[0014] Furthermore, the sealing element is made of silicone or nitrile rubber.

[0015] This utility model has the following beneficial effects:

[0016] 1. This utility model features a rotating retaining ring and an elastic element positioned between a rotatable outer sleeve and a rotating mandrel. The rotating retaining ring has shifting positioning teeth, and the outer sleeve has a ring of evenly arranged tooth grooves. When the rotating mandrel rotates relative to the outer sleeve, the shifting positioning teeth continuously engage with the tooth grooves, producing a crisp shifting sound and maintaining a good shifting feel. Furthermore, after rotation, the relative rotation angle is maintained and does not easily wobble. The rotating retaining ring and elastic element have a simple and reliable structure, high structural strength, and are easy to process and assemble. After assembly, during rotational adjustment, the shifting positioning teeth make active contact with the tooth grooves in the circumferential direction, reducing fatigue wear during use and facilitating long-term use.

[0017] 2. The outer sleeve of this utility model is rotatably fitted onto the outside of the rotating mandrel tube by means of elastic claws and positioning shoulders. An elastically deformable sealing element is then set between the outer sleeve and the rotating mandrel tube. After assembly, the sealing performance is good and it is not easy to leak water when rotating. It is suitable for installation on rotating pipe fittings such as rotating faucets. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the faucet rotary joint of this utility model.

[0019] Figure 2This is a cross-sectional schematic diagram of the faucet rotary joint of this utility model.

[0020] Figure 3 This is a three-dimensional exploded view of the faucet rotary joint of this utility model.

[0021] Figure 4 This is a three-dimensional schematic diagram of the outer sleeve of this utility model.

[0022] Figure 5 This is a three-dimensional schematic diagram of the rotating mandrel tube of this utility model.

[0023] Figure 6 This is a three-dimensional schematic diagram of the rotating retaining ring of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Outer sleeve; 102. Second end face; 11. Tooth groove; 12. Limiting step; 13. Connecting sleeve; 14. Elastic claw; 2. Rotating spindle tube; 21. Water passage hole; 22. Connecting thread; 23. Sealing connecting ring; 24. Positioning shoulder; 25. Limiting plate; 3. Sealing element; 31. Sealing sleeve; 32. Inner sealing ring; 33. Outer sealing ring; 4. Rotating retaining ring; 41. Shifting positioning tooth; 42. Recessed groove; 43. Anti-rotation stop; 5. Elastic element; 51. Elastic ring; 52. Elastic shaft; 6. Positioning nut. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0027] See Figure 1-6As shown, a faucet rotary connector includes an outer sleeve 1, a rotating spindle tube 2, and a sealing element 3. The rotating spindle tube 2 has a hollow water passage hole 21 with a hexagonal hole for easy installation. One end of the rotating spindle tube 2 has a connecting thread 22, and the other end has a sealing connecting ring 23. The outer sleeve 1 is rotatably fitted over the rotating spindle tube 2. The sealing element 3 is fitted onto the sealing connecting ring 23, with one end extending into the outer sleeve 1. The rotating spindle tube 2 has a positioning shoulder 24 and a limiting plate 25. A rotating retaining ring 4 is provided at the limiting plate 25. The rotating retaining ring 4 is connected to an elastic element 5. The rotating retaining ring 4 has a shifting positioning tooth 41. The thickness of the rotating retaining ring 4 and the shifting positioning tooth 41 can be set according to strength requirements. The end shape of the shifting positioning tooth 41 can be arc-shaped or pointed, and it can be further processed. The strong treatment ensures strength. The outer tube 1 on the second end face 102 side is provided with a ring of evenly arranged toothed grooves 11. The elastic element 5 is made of metal elastic that is not easy to rust. The elastic element 5 includes an elastic ring 51 with an opening and an elastic shaft 52. The rotating retaining ring 4 is provided with a retaining groove 42 to accommodate the elastic shaft 52. The rotating retaining ring 4 is provided with an anti-rotation stop 43 that cooperates with the limiting retaining platform 25. After being squeezed by the inner ring of the toothed groove 11, the elastic ring 51 and the elastic shaft 52 elastically deform and press the shift positioning tooth 41 against the toothed groove 11. When the rotating mandrel tube 2 rotates relative to the outer tube 1, the shift positioning tooth 41 continuously engages with the toothed groove 11, and a crisp clicking sound is emitted when engaging. After the rotation stops, the shift positioning tooth 41 remains engaged with a toothed groove 11 at the stop position, so that the outer tube 1 and the rotating mandrel tube 2 will not rotate relative to each other at will.

[0028] Furthermore, the outer sleeve 1 with the toothed groove 11 has a limiting step 12 inside for positioning the rotating retaining ring 4. The other end of the outer sleeve 1 has a connecting sleeve 13. The cavity of the connecting sleeve 13 has at least two elastic claws 14 (in this embodiment, eight circumferentially evenly arranged elastic claws 14 are provided). The end of the elastic claw 14 can rotatably press against the inner step of the sealing connecting ring 23 to press the second end face 102 of the outer sleeve 1 against the positioning shoulder 24. A positioning nut 6 is embedded on the outer sleeve 1.

[0029] The sealing element 3 includes a sealing sleeve 31 and an inner sealing ring 32. The sealing sleeve 31 extends into the connecting sleeve 13 of the outer sleeve 1 for a sealing connection. The inner sealing ring 32 seals against the annular groove in the sealing connecting ring 23. An outer sealing ring 33 is provided outside the sealing element 3 to seal the external faucet connecting pipe. The sealing element 3 is made of silicone or nitrile rubber. When the faucet rotary joint is installed in the faucet, the sealing element 3 is deformed by compression, sealing the gap between the outer sleeve 1, the rotary spindle tube 2, and the faucet connecting pipe to prevent leakage.

[0030] The above description is only a specific embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural transformations made based on the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A faucet swivel joint, comprising an outer sleeve (1), a rotating core shaft pipe (2) and a sealing element (3), the rotating core shaft pipe (2) is provided with a hollow water passing hole (21), one end of the rotating core shaft pipe (2) is provided with a connecting thread (22), the other end of the rotating core shaft pipe (2) is provided with a sealing connecting ring (23), the outer sleeve (1) is rotatably sleeved outside the rotating core shaft pipe (2), the sealing element (3) is sleeved on the sealing connecting ring (23) and one end thereof extends into the outer sleeve (1), characterized in that: The rotating core tube (2) is provided with a positioning shaft shoulder (24) and a limiting clamping table (25), the limiting clamping table (25) is provided with a rotating clamping ring (4), the rotating clamping ring (4) is connected with an elastic element (5), the rotating clamping ring (4) is provided with a gear shifting positioning tooth (41), the outer sleeve tube (1) on the second end surface (102) side is provided with a circle of uniformly arranged gear slots (11); when the rotating core tube (2) rotates relative to the outer sleeve tube (1), the gear shifting positioning tooth (41) is constantly in movable engagement with the gear slot (11). ​ 2. A swivel for a tap according to claim 1, characterised in that: The outer sleeve tube (1) provided with the gear slot (11) is internally provided with a limiting step (12) for positioning the rotating clamping ring (4).

3. A swivel joint for a tap according to claim 1 or 2, characterised in that: The outer sleeve tube (1) is provided with a connecting sleeve (13) at the other end, the connecting sleeve (13) is provided with at least two elastic clamping jaws (14) in the cavity, the end of the elastic clamping jaw (14) is rotatably abutted against the inner step of the sealing connecting ring (23) to tightly abut the second end surface (102) of the outer sleeve tube (1) towards the positioning shaft shoulder (24).

4. A swivel for a faucet according to claim 1, wherein: The outer sleeve tube (1) is inlaid with a positioning nut (6).

5. A swivel for a faucet as defined in claim 1, wherein: The elastic element (5) comprises an elastic ring (51) provided with an opening and an elastic shaft rod (52), the rotating clamping ring (4) is provided with a clamping groove (42) for accommodating the elastic shaft rod (52), and the elastic element (5) presses the gear shifting positioning tooth (41) towards the gear slot (11) through the elastic shaft rod (52).

6. A swivel for a faucet according to claim 1, wherein: The rotating clamping ring (4) is provided with a rotation stopping baffle (43) matched with the limiting clamping table (25).

7. A swivel for a faucet as defined in claim 3, wherein: The sealing element (3) is provided with a sealing sleeve (31) and an inner sealing ring (32), the sealing sleeve (31) extends into the connecting sleeve (13) of the outer sleeve tube (1), and the inner sealing ring (32) is sealingly matched with the annular groove in the sealing connecting ring (23).

8. A swivel for a tap according to claim 7, wherein: The sealing element (3) is externally provided with an outer sealing ring (33).

9. A swivel for a faucet according to claim 7, wherein: The sealing element (3) is made of silica gel or butadiene acrylonitrile rubber.

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