Rotary connecting structure of water pipe and water outlet device applying rotary connecting structure

Abstract

The utility model discloses a rotary connecting structure of water pipes. The rotary connecting structure comprises a first water pipe, a second water pipe and a clamping ring, one end of the first water pipe protrudes to form a connector, the clamping ring rotatably sleeves the connector around the shaft, and one end of the second water pipe detachably sleeves and is fixed on the clamping ring; a first sealing groove is formed in the periphery of the clamping ring in a surrounding mode, a first sealing ring is arranged on the first sealing groove in a sleeving mode, after the second water pipe is arranged on the clamping ring in a sleeving mode, the first sealing ring abuts against the inner wall of the second water pipe, a clamping groove is formed in the first sealing groove, and the clamping groove penetrates through the first sealing groove in the radial direction and is provided with a clamping piece in a sliding mode in the radial direction; the clamping piece is clamped in the clamping groove through the first sealing ring so that the clamping piece can be limited to slide out in the direction away from the connector in the radial direction, a limiting part is formed on the outer wall of the connector, and the limiting part is formed on the axial movement path of the clamping piece so that when the clamping piece slides into the clamping groove, the clamping ring can be limited to move in the direction away from the first water pipe in the axial direction. The structure is simple and compact, and axial limiting of the clamping ring is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of water pipe connection, in particular to a rotary connection structure of a water pipe and a water outlet device applied thereto. Background Art

[0002] Nowadays, rotary faucets are widely used in people's daily lives due to their convenience. The rotary connection structure used in existing rotary faucets generally includes a clamping ring, a first water pipe with a connector fixed thereto, and a second water pipe. The clamping ring and the connector are rotatably sleeved, and the second water pipe and the clamping ring are detachably fixed so that the second water pipe can rotate relative to the first water pipe. The clamping ring and the connector are usually axially limited by protrusions and openings, and the axial limitation is not firm and is easy to slip. Utility Model Content

[0003] The purpose of the utility model is to provide a rotating connection structure of a water pipe and a water outlet device used therein, and the technical problem to be solved is to achieve a stable and reliable connection between the clamping ring and the connecting head and a more compact structure.

[0004] To achieve the above-mentioned purpose, the solution of the present invention is: a rotating connection structure of a water pipe, comprising a first water pipe, a second water pipe and a clamping ring;

[0005] One end of the first water pipe is protruded to form a connector, and the clamp is rotatably sleeved on the connector around the axis. One end of the second water pipe is sleeved on the clamp and is detachably fixedly connected to the clamp, so that the second water pipe rotates relative to the connector along with the clamp.

[0006] A first sealing groove is formed around the outer periphery of the clamping ring, and a first sealing ring is sleeved on the first sealing groove. After the second water pipe is sleeved on the clamping ring, the first sealing ring is pressed against the inner wall of the second water pipe. A clamping groove is provided in the first sealing groove, and the clamping groove radially penetrates the first sealing groove. A clamping piece is radially slidably provided on the clamping groove. The first sealing ring tightens the clamping piece in the clamping groove to limit the clamping piece from sliding out radially away from the connecting head. A limiting portion is formed on the outer side wall of the connecting head. The limiting portion is formed on the path of axial movement of the clamping piece to limit the clamping ring from moving axially away from the first water pipe when the clamping piece slides into the clamping groove.

[0007] Furthermore, a step-shaped side wall is formed on the side of the clip facing away from the connector, including a first side wall and a second side wall. The outer contour of the first side wall is consistent with the outer wall contour of the clip, and the outer contour of the second side wall is consistent with the contour of the first sealing groove, so that when the first sealing ring is embedded in the first sealing groove, the second side wall of the clip is pressed against and the clip is clamped on the clip.

[0008] Furthermore, an annular groove is formed around the outer wall of the connecting head, and the annular groove is the limiting portion. The annular groove is opposite to the clamping groove, so that when the clamping piece slides into the clamping groove, one end of the clamping piece is inserted into the annular groove to limit the axial movement of the clamping ring.

[0009] Furthermore, at least one second sealing groove is arranged around the outer periphery of the connector, and the second sealing groove and the annular groove are arranged axially spaced apart. A second sealing ring is sleeved on the second sealing groove so that when the retaining ring is sleeved on the connector, the second sealing ring is pressed against the outer wall of the connector to seal between the connector and the retaining ring.

[0010] Furthermore, a fixed limiting ring is sleeved on the outer periphery of the connecting head, and a stop portion is formed on the inner side wall of the clamping ring facing one end of the first water pipe, so that when the clamping ring is sleeved on the connecting head, the limiting ring abuts against the stop portion to limit the clamping ring from moving axially toward the first water pipe.

[0011] Furthermore, a spring sheet is formed on the outer wall of the clamping ring, which can elastically expand and contract in the radial direction. A clamping protrusion is formed on the side of the spring sheet facing away from the connecting head, and a through hole is formed on the side wall of the second water pipe, so that when the second water pipe is sleeved on the clamping ring, the spring sheet can elastically drive the clamping protrusion to extend toward the second water pipe, and the clamping protrusion slides into the through hole and exposes the outer side surface of the second water pipe, thereby fixing the second water pipe to the clamping ring.

[0012] Furthermore, a plurality of ribs are arranged in an array around the outer wall of the clamping ring, so that when the second water pipe is sleeved on the clamping ring, the ribs are used to abut against the inner wall of the second water pipe.

[0013] The utility model also provides a faucet, which uses the above-mentioned rotating connection structure of the water pipe, wherein the second water pipe is a water inlet pipe, the second water pipe is connected to an external water source device, the first water pipe is a water outlet pipe, the first water pipe is formed with a water outlet, and a water outlet nozzle is installed on the water outlet.

[0014] Furthermore, a third water pipe is provided between the first water pipe and the water outlet nozzle, the water outlet nozzle is installed on the third water pipe, and the above-mentioned rotating connection structure is provided between the third water pipe and the first water pipe, so that the third water pipe drives the water outlet nozzle to rotate relative to the first water pipe.

[0015] After adopting the above scheme, the beneficial effect of the utility model is that: by providing a clamping ring, the clamping ring is rotatably sleeved on the connecting head at one end of the first water pipe, and one end of the second water pipe is sleeved on the clamping ring and is detachably fixedly connected to the clamping ring, so that the second water pipe can rotate relative to the first water pipe; in addition, a clamping groove is provided in the first sealing groove on the outer periphery of the clamping ring, and the clamping groove radially penetrates the first sealing groove, and a clamping piece is radially slidingly provided on the clamping groove, and a limiting portion is formed on the outer wall of the connecting head, and the limiting portion is provided on the path of axial movement of the clamping piece. When the clamping piece slides into the clamping groove, the limiting portion is clamped with the clamping piece, which can limit the axial sliding of the clamping ring, and the structure is more stable. While realizing the rotation of the clamping ring relative to the connecting head, it can limit the clamping ring from sliding out of the connecting head in the axial direction, and the structure is compact, space saving, and material cost saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural diagram of the faucet used in the utility model.

[0017] Figure 2 This is a schematic diagram of the decomposition structure of the rotary connection structure of the utility model Figure 1 .

[0018] Figure 3 This is a schematic diagram of the decomposition structure of the rotary connection structure of the utility model Figure 2 .

[0019] Figure 4 This is a schematic diagram of the decomposition structure of the rotary connection structure of the utility model Figure 3 .

[0020] Figure 5 It is a schematic diagram of the three-dimensional exploded structure of the faucet used in the utility model.

[0021] Figure 6 yes Figure 1 Schematic diagram of the local structure of the cross section.

[0022] Explanation of the numbers: 1-first water pipe, 2-second water pipe, 3-clamping ring, 4-connecting head, 5-first sealing ring, 6-clamping piece, 7-second sealing ring, 8-limiting ring, 9-water outlet nozzle, 10-third water pipe, 11-water outlet, 21-through hole, 31-first sealing groove, 32-clamping groove, 33-stopping part, 34-spring, 35-clamping convexity, 36-convex rib, 41-limiting part, 42-annular groove, 43-second sealing groove, 61-first side wall, 62-second side wall. DETAILED DESCRIPTION

[0023] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] In the claims, specification and the above-mentioned drawings of the present invention, unless otherwise expressly defined, directional words, such as the use of terms such as "center", "transverse", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships 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 direction or be constructed and operated in a specific direction, so they cannot be understood as limiting the specific scope of protection of the present invention.

[0025] like Figures 1 to 6 As shown, a rotating connection structure of a water pipe comprises a first water pipe 1, a second water pipe 2 and a clamping ring 3; a connector 4 is formed on one end of the first water pipe 1, and the clamping ring 3 is rotatably sleeved on the connector 4 around the axis, and one end of the second water pipe 2 is sleeved on the clamping ring 3 and is detachably fixedly connected with the clamping ring 3, so that the second water pipe 2 rotates relative to the connector 4 along with the clamping ring 3. Specifically, the fixed connection between the connector 4 and the first water pipe 1 can be fixed by threaded connection or other clamping methods. The connector 4 can also be integrally formed on the first water pipe 1. No specific limitation is made here, as long as it can ensure that the connector 4 is fixed to the first water pipe 1; a first water passage is formed in the first water pipe 1, and a second water passage is formed in the second water pipe 2. The first water passage passes through to the outside of the connector 4, so that when the second water pipe 2 is sleeved on the clamping ring 3, the first water passage can be communicated with the second water passage; focus on Figure 2 As shown, an elastic piece 34 is formed on the outer wall of the clamp ring 3, and the elastic piece 34 can elastically expand and contract in the radial direction. A gap is formed between the elastic piece 34 and the outer wall of the connector 4, and the gap can provide space for the elastic piece 34 to expand and contract. A locking protrusion 35 is formed on the side of the elastic piece 34 away from the connector 4. A through hole 21 is formed on the side wall of the second water pipe 2, so that when the second water pipe 2 is sleeved on the clamp ring 3, the elastic piece 34 can elastically drive the locking protrusion 35 to extend toward the second water pipe 2, and the locking protrusion 35 slides into the through hole 21 and exposes the outer side of the second water pipe 2, fixing the second water pipe 2 to the clamp ring 3; during installation, when one end of the second water pipe 2 is axially sleeved on the clamp ring 3, the second water pipe 2 is fixed to the clamp ring 3. The inner wall of the water pipe 2 radially pushes against the spring piece 34, causing the spring piece 34 to retract radially toward the connector 4 until the locking protrusion 35 is aligned with the through hole 21. The elastic force of the spring piece 34 drives the locking protrusion 35 to slide into the through hole 21, fixing the second water pipe 2 and the clamping ring 3. When disassembling, an external force presses the locking protrusion 35 from the outside of the second water pipe 2, causing the locking protrusion 35 to drive the spring piece 34 to retract toward the connector 4. The locking protrusion 35 slides out of the through hole 21, releasing the limit between the second water pipe 2 and the clamping ring 3, and the two are separated. The second water pipe 2 can be disassembled by pulling the second water pipe 2 axially. Furthermore, an inclined surface is formed on the surface of the locking protrusion 35 to facilitate sliding into or out of the through hole 21.

[0026] Key Structure Figure 3 As shown, a first sealing groove 31 is formed around the outer circumference of the clamping ring 3, and a first sealing ring 5 is sleeved on the first sealing groove 31. After the second water pipe 2 is sleeved on the clamping ring 3, the first sealing ring 5 is pressed against the inner wall of the second water pipe 2. A clamping groove 32 is opened in the first sealing groove 31, and the clamping groove 32 radially penetrates the first sealing groove 31. A clamping member 6 is radially slidably provided on the clamping groove 32. Specifically, the inner contour of the clamping groove 32 is adapted to the outer contour of the clamping member 6. When installing, put the clamping member 6 into the clamping groove 32 and push or press the clamping member 6 radially. It is pressed into the clamping groove 32 so that the clamping part 6 slides radially in the clamping groove 32. The first sealing ring 5 tightens the clamping part 6 in the clamping groove 32 to limit the clamping part 6 from sliding out radially in the direction away from the connector 4. A limiting portion 41 is formed on the outer wall of the connector 4. The limiting portion 41 is formed on the axial movement path of the clamping part 6, so that when the clamping part 6 slides into the clamping groove 32, one end of the clamping part 6 toward the connector 4 abuts against the side wall of the connector 4. The limiting portion 41 is used to limit the clamping ring 3 from moving axially in the direction away from the first water pipe 1.

[0027] Key Structure Figure 3 As shown, an annular groove 42 is formed around the outer wall of the connector 4, and the annular groove 42 is the limiting portion 41. The annular groove 42 is opposite to the clamping groove 32, so that when the clamping member 6 slides into the clamping groove 32, one end of the clamping member 6 is inserted into the annular groove 42 to limit the axial movement of the clamping ring 3; at least one second sealing groove 43 is arranged around the outer periphery of the connector 4, and the second sealing groove 43 and the annular groove 42 are arranged axially spaced, and a second sealing ring 7 is sleeved on the second sealing groove 43, so that when the clamping ring 3 is sleeved on the connector 4, the second sealing ring 7 is pressed against the outer wall of the connector 4 to seal the connector 4 and the clamping ring 3.

[0028] Key Structure Figure 3 and Figure 4 As shown, since the side wall of the first sealing groove 31 is relatively thin, in order to prevent the clamping member 6 from slipping or misalignment, the clamping member 6 forms a stepped side wall on the side away from the connector 4, including a first side wall 61 and a second side wall 62. The outer contour of the first side wall 61 is consistent with the outer wall contour of the clamping ring 3, and the outer contour of the second side wall 62 is consistent with the contour of the first sealing groove 31 (as shown in FIG. Figure 2 As shown), when the first sealing ring 5 is embedded in the first sealing groove 31, it presses against the second side wall 62 of the clamping member 6, and clamps the clamping member 6 on the clamping ring 3. The first sealing ring 5 can limit the radial and axial position of the clamping member 6 in the step state structure, and can firmly fix the clamping member 6 on the clamping ring 3, making it difficult to slip or dislocate.

[0029] Focus on combination Figure 2As shown, the end of the clamp ring 3 facing the first water pipe 1 abuts against the first water pipe 1. Since the clamp ring 3 often rotates during use, the end of the clamp ring 3 abutting against the first water pipe 1 is prone to wear due to friction. In order to solve this problem, the focus is on combining Figure 6 As shown, a limiting ring 8 is fixed on the connecting head 4, and a stop portion 33 is formed on the inner wall of the clamping ring 3, so that when the clamping ring 3 is sleeved on the connecting head 4, the limiting ring 8 abuts against the stop portion 33, which is used to limit the clamping ring 3 from moving axially toward the first water pipe 1. Specifically, a wave structure is formed on the end of the limiting ring 3 facing the stop portion 33, which is smoother, so that the relative rotation between the stop portion 33 and the limiting ring 3 is smoother and wear is reduced. At the same time, a gap can be formed between the end of the clamping ring 3 facing the first water pipe 1 and the first water pipe 1, thereby avoiding wear of the end of the clamping ring 3 due to long-term use.

[0030] There are several ribs 36 arranged in an array around the outer wall of the clamping ring 3. When the second water pipe 2 is put on the clamping ring 3, the ribs 36 are used to press against the inner wall of the second water pipe 2, so that an interference fit is formed between the clamping ring 3 and the second water pipe 2, making the structure more compact and firm. At the same time, it can reduce the processing accuracy requirements of the clamping ring 3 and reduce costs.

[0031] Focus on combination Figure 1 and Figure 4 As shown, the utility model also provides a water outlet device, which uses the above-mentioned rotating connection structure of the water pipe. The second water pipe 2 is a water inlet pipe, the second water pipe 2 is connected to an external water source device, the first water pipe 1 is a water outlet pipe, and the first water pipe 1 is formed with a water outlet 11, and a water outlet nozzle 9 is installed on the water outlet 11.

[0032] Preferably, a third water pipe 10 is further provided between the first water pipe 1 and the water outlet nozzle 9, and the water outlet nozzle 9 is installed on the third water pipe 10. The above-mentioned rotating connection structure is provided between the third water pipe 10 and the first water pipe 1, so that the third water pipe 10 drives the water outlet nozzle 9 to rotate relative to the first water pipe 1.

[0033] The above description provided by the present invention is only a preferred embodiment of the present invention and is not intended to limit the design of the present invention. Any equivalent changes made based on the key design of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A rotary connection structure for a water pipe, characterized in that: It comprises a first water pipe (1), a second water pipe (2) and a clamping ring (3); One end of the first water pipe (1) is protruded to form a connector (4), and the clamping ring (3) is rotatably sleeved on the connector (4) around an axis. One end of the second water pipe (2) is sleeved on the clamping ring (3) and is detachably fixedly connected to the clamping ring (3), so that the second water pipe (2) rotates relative to the connector (4) along with the clamping ring (3); A first sealing groove (31) is formed around the outer periphery of the clamping ring (3), a first sealing ring (5) is sleeved on the first sealing groove (31), and after the second water pipe (2) is sleeved on the clamping ring (3), the first sealing ring (5) is pressed against the inner wall of the second water pipe (2), a clamping groove (32) is provided in the first sealing groove (31), the clamping groove (32) radially penetrates the first sealing groove (31), and a clamping member (6) is radially slidably provided on the clamping groove (32) The first sealing ring (5) clamps the clamping member (6) in the clamping groove (32) to limit the clamping member (6) from sliding out in the radial direction away from the connecting head (4). A limiting portion (41) is formed on the outer wall of the connecting head (4). The limiting portion (41) is formed on the path of axial movement of the clamping member (6) to limit the clamping ring (3) from moving in the axial direction away from the first water pipe (1) when the clamping member (6) slides into the clamping groove (32).

2. The rotary connection structure of the water pipe according to claim 1, characterized in that: The clamping member (6) forms a stepped side wall on the side facing away from the connector (4), comprising a first side wall (61) and a second side wall (62). The outer contour of the first side wall (61) is consistent with the outer contour of the clamping ring (3), and the outer contour of the second side wall (62) is consistent with the contour of the first sealing groove (31). When the first sealing ring (5) is embedded in the first sealing groove (31), the second side wall (62) of the clamping member (6) is pressed against, and the clamping member (6) is clamped on the clamping ring (3).

3. The rotary connection structure of the water pipe according to claim 1, characterized in that: An annular groove (42) is formed around the outer wall of the connector (4), and the annular groove (42) is the limiting portion (41). The annular groove (42) is opposite to the clamping groove (32), so that when the clamping member (6) slides into the clamping groove (32), one end of the clamping member (6) is inserted into the annular groove (42) to limit the axial movement of the clamping ring (3).

4. The rotary connection structure of the water pipe according to claim 3, characterized in that: At least one second sealing groove (43) is arranged around the outer periphery of the connector (4), and the second sealing groove (43) and the annular groove (42) are arranged axially spaced apart. A second sealing ring (7) is sleeved on the second sealing groove (43), so that when the snap ring (3) is sleeved on the connector (4), the second sealing ring (7) presses against the outer wall of the connector (4) to seal between the connector (4) and the snap ring (3).

5. The rotary connection structure of the water pipe according to claim 1, characterized in that: A fixed limiting ring (8) is sleeved on the outer periphery of the connector (4), and a stop portion (33) is formed on the inner side wall of the clamping ring (3) at one end facing the first water pipe (1), so that when the clamping ring (3) is sleeved on the connector (4), the limiting ring (8) abuts against the stop portion (33) to limit the clamping ring (3) from moving axially toward the first water pipe (1).

6. The rotary connection structure of the water pipe according to claim 1, characterized in that: The outer wall of the clamping ring (3) is formed with an elastic piece (34), which can elastically expand and contract in the radial direction. A locking protrusion (35) is formed on the side of the elastic piece (34) facing away from the connector (4). A through hole (21) is formed on the side wall of the second water pipe (2). When the second water pipe (2) is sleeved on the clamping ring (3), the elastic piece (34) can elastically drive the locking protrusion (35) to extend toward the second water pipe (2). The locking protrusion (35) slides into the through hole (21) and exposes the outer side surface of the second water pipe (2), thereby fixing the second water pipe (2) to the clamping ring (3).

7. The water pipe rotary connection structure according to claim 1, characterized in that: The outer wall of the clamping ring (3) is surrounded by a plurality of convex ribs (36) in an array so that when the second water pipe (2) is sleeved on the clamping ring (3), the convex ribs (36) are used to abut against the inner wall of the second water pipe (2).

8. A water outlet device, using the rotary connection structure of the water pipe according to any one of claims 1 to 7, characterized in that: The second water pipe (2) is a water inlet pipe, and the second water pipe (2) is connected to an external water source device. The first water pipe (1) is a water outlet pipe, and the first water pipe (1) is formed with a water outlet (11), and a water outlet nozzle (9) is installed on the water outlet (11).

9. The water outlet device according to claim 8, characterized in that: A third water pipe (10) is further provided between the first water pipe (1) and the water outlet nozzle (9), the water outlet nozzle (9) being mounted on the third water pipe (10), and the above-mentioned rotating connection structure is provided between the third water pipe (10) and the first water pipe (1), so that the third water pipe (10) drives the water outlet nozzle (9) to rotate relative to the first water pipe (1).

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