GB2587898A - Water outlet device with joint nut - Google Patents

Abstract

A water outlet device with a replaceable joint nut comprises a water outlet main body 1, a housing 2, and a replaceable joint nut 3. The housing is provided with a mounting cavity (210 figure 8) for assembling the water outlet main body in a longitudinal direction. Mounting holes (211, 212 figures 2, 3) are formed respectively at each end of the housing. The bottom of the water outlet chamber (110 figure 3) of the water outlet main body is in communication with a water path (13 figure 7). The housing has an aperture 21 which is smaller (X1 figure 8) than the outer edge (X2 figure 8) of the joint nut to ensure the joint nut is fixed inside the water outlet main body. The split design between the joint nut and the water outlet main body, allows either piece to be renewed to extend the service life of the water outlet main body and the housing.

Description

WA 1 ER OUTLET DFAITCE WITT JOINT NUT The present invention relates to the field of sanitary ware, and in particular, to a water outlet device with a replaceable joint nut.

in the sanitary ware industry, water outlet devices generally require external water equipment, such as top sprays, hand showers, etc. 'Therefore, it is importance to design relevant and reasonable water joint coupling in a water outlet device. There are two commonly used methods at present, in one of which a metal nut is embedded for external connection while the water outlet main body is injection-moulded, and in the other of which a water joint coupling with threads are arranged while the water outlet main body is injection-moulded.

With the first method, during the injection pressure-preservation moulding process of the water outlet main body, the threads segment of the metal nut may be squeezed and deformed, resulting in deformation of the threads, and the entire product is scrapped and can't be used anymore. With the second method, since the threads are of plastic material, the material is more likely to get aged as the duration of use gets longer, resulting in deterioration of its strength and durability. Once the threads are damaged, the entire water outlet main body needs to be replaced.

Meanwhile, as for the conventional water outlet device, the general profile of the water outlet main body needs to match the profile of the housing, that is, a cylindrical water outlet main body matches a cylindrical housing, and a square water outlet main body matches a square housing, which leads ro the need for different housing shapes in order to match different water outlet bodies, thus the manufacturing cost is high.

The first object of the present invention is to provide a water outlet device with lower manufacturing cost and longer service life.

The second object of the present invention is to provide awater outlet device that can realize low-cost and diversified design.

in order to achieve the first object of the present invention, the present invention discloses a water outlet device, which comprises a water outlet main body, a housing and a joint nut. The housing is provided with a mounting cavity for assembling the water outlet main body penetrating its front and back along its longitude direction, and a mounting hole is formed respectively at each end of the housing. At least one water outlet chamber is provided at the radial position of the water outlet main body, the bottom of the water outlet chamber is in communication with the water path inside the water outlet main body, and the water outlet chamber has a built-in joint nut which can't rotate relative to the water outlet chamber. When the water outlet main body is set into the mounting cavity of the housing via the mounting hole, the housing is provided with an external hole at a position opposite to the water outlet chamber of the water outlet main body. 'the aperture X1 of the external hole is less than the outer aperture X2 of the outer edge of the joint nut to ensure that the joint nut is fixed at the inner side the external hole, and the inner hole of the joint nut and the external hole penetrate each other to form an assembly cavity.

With the above structure, the joint nut is non-rotatably set into the water outlet chamber of the water outlet main body. Preferably, the water outlet main body and the joint nut are made of plastic material, which is easy to fowl and low in manufacturing cost. Meanwhile, the joint nut is detachable. Once the threads get aged and the strength does not meet the requirements, the user can directly replace the joint nut to extend the service life of the overall water outlet device.

in order to achieve the second object of the present invention, the present invention discloses a water outlet device, wherein the water outlet main body is cylindrical in shape, and is further provided with a water joint coupling, one end of which is provided with a first connection part that can be externally connected to water equipment, and the other end of which is provided with a second connection part used for connection with a joint nut. A flow channel is provided inside the water joint coupling. The outer -wall of the second connection part is provided with at least one sealing ring and an external thread matched with the joint nut from the top down. The water joint coupling is inserted into the external hole and the inner hole of the joint nut sequentially via the second connection part, and is screwed into the inner hole of the joint nut via the external thread of the second connection part to realize connection between the flow channel of the water joint coupling and the water path inside the water outlet main body.

The second connection part of the water joint coupling is screwed to the joint nut to ensure that the water joint coupling is stably fixed on the water outlet main body.

Meanwhile, the first connection part of the water joint coupling is used to connect to an external water equipment. The water path between the external water equipment and the water outlet main body is connected via the flow channel within the water joint coupling. Since the water outlet main body is designed with a cylindrical shape in consideration of manufacturing cost and structural strength, and the water joint coupling is directly inserted into the external hole of the housing and the water outlet chamber of the water outlet main body, even if the housing is non-cylindrical, for example, the housing is otherwise shaped such as square, the housing can also be stibly fixed to the water outlet main body. Further, the water path inside the water outlet main body and the external water equipment are in communication with each other via the water joint coupling, thus there is no need to consider the water path sealing of the assembly gap between the water outlet main body and the housing, facilitating that housings of different shapes use the same cylindrical water outlet main body, which greatly reduces the manufacturing cost and improves the diversity of products.

Fig. 1 is an exploded view of the water outlet device according to the present invention; Fig. 2 is a schematic view of the structure of the water outlet main body and the housing at a first angle according to the present invention; Fig. 3 is a schematic view of the structure of the water outlet main body and the housing at a second angle according to the present invention; Fig. 4 is a schematic structure diagram of the structure of the joint nut at a first angle according to the present invention; Fig. 5 is a schematic structure diagram of the structure of the joint nut at a second angle according to the present invention; Fig. 6 is a schematic cross-sectional view of the joint nut according to the present invention; Fig. 7-10 are schematic cross-sectional views of the assembly steps of the water outlet device according to the present invention; Fig. 11 is a schematic sectional view of the water outlet device after assembly according to the present invention; Fig. 12 is a partial enlarged view of part A of Fig. 11; Fig. 13 is a schematic perspective view of the water outlet device after assembly according to the present invention.

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

As shown in Fig. 1, a water outlet device comprises a water outlet main body 1, a housing 2, a joint nut 3, a First water joint coupling 61, and a second water joint coupling 62. The water outlet main body 1 is cylindrical in shape, and the cylindrical shape can ensure the strength of the water outlet main body 1 and is easy to be integrally injection-moulded. As illustrated in Fig. 7, a water outlet chamber 11 is provided respectively in the middle radial position of the water outlet main body 1 along the up and down direction.

The water outlet main body 1 is provided with at least two mutually separated water paths 13 along the axial direction, and each water path 13 is in communication with the bottom of the adjacent water outlet chamber 11. As shown in Fig.3 and Fig.12, the bottom 110 of the water outlet chamber 11 is provided with a rotation-stopping block 111, and a joint nut 3 is provided respectively in each of the two water outlet chambers 11. As shown in Fig.6 and Fig. 8, the outer dimension of the joint nut 3 matches the dimension of the inner cavity of the water outlet chamber 11, the inner hole 33 of the joint nut 3 is provided with a step edge 330, and the inner hole 33 of the joint nut is divided into upper and lower inner holes by this step edge 330, among which the aperture of the upper inner hole 331 is larger, and the aperture of the lower inner hole 332 is smaller. The inner wall of the lower inner hole 332 is provided with a thread 311, and the outer wall 32 of the joint nut 3 is provided with a groove 321 for setting the sealing ring 322. As shown in Fig.4. 1'ig.5 and 11'ig.12, the joint nut 3 is also provided with a rotation-stopping notch 36 towards the bottom of the water outlet chamber. When the joint nut 3 is inserted into the corresponding water outlet chamber 11, the rotation-stopping notch 36 and the rotation-stopping block 111 engage with each other so that the joint nut 3 can't rotate in the water outlet chamber 11,and it is ensured that the water flowing through the water outlet chamber11 will not leak out through the gap between the joint nut 3and the water outlet chamber 11 by means of the sealing ring 322. Meanwhile, the joint nut 3 is further provided with a recess 34 at the bottom facing the water outlet chamber 11, which is an arc-shaped notch 34 at the bottom of the joint nut 3 facing the water outlet chamber 11.

When the joint nut 3 is placed in the water outlet chamber 11, the arc-shaped notch 34 corresponds exactly to the portion 131 where the water outlet chamber 11 is in communication with the mixed water path 13.

As shown in Figs. 1-3, the housing 2 selected in this embodiment is square in shape, but a variety of other shapes can also be selected for housing 2, as long as a mounting cavity 210 for assembling the water outlet main body is arranged penetrating its front to back in its longitude direction and a front mounting hole 2011 as well as a rear mounting hole 2012 are respectively formed at each end of the housing 2. An external hole 21 is provided respectively in the upper and lower directions of the middle position of the housing 2. As shown in Fig. 8, the aperture X1 of the external hole 21 is less than the external aperture X2 of the external edge of the built-in joint nut 3 of the corresponding water outlet chamber 11. In this embodiment, the aperture X1 of the external hole 21 is greater than or equal to the aperture X3 of the upper inner hole 331 of the built-in joint nut 3 of the corresponding water outlet chamber 11. 't he rear mounting hole 2012 of the housing 2 is provided with two positioning notches 22 on the upper and lower sides, and the rear end of the water outlet main body 1 is provided with two positioning protrusions 23 corresponding to the two positioning notches 22. After the water outlet main body 1 is pushed from the front mounting hole 2011 into the housing 2 to realize assembly, the two positioning protrusions 23 are just inserted into the two positioning notches 22 of the housing 2 and are engaged with the positioning notches 22 to ensure that the water outlet chamber 11 on the water outlet main body 1 is precisely aligned with the external hole 21 provided in the housing 2 and at the same time makes the water outlet main body 1 non-rotatably disposed in the mounting cavity 210 of the housing 2.

When the water outlet main body 1 is assembled into the housing 2, the joint nut 3 in the water outlet chamber 11 is restricted by the hole edge 211 of the corresponding external hole 21, thus can't be taken out. As shown in Fig. 9, the joint nut 3 located above the water outlet main body 1 and the external hole 21 form a first assembly cavity 4, and the joint nut 3 located below the water outlet main body 1 and the corresponding external hole 21 form a second assembly cavity 5.

As shown in Fig. 9 and Fig.10, the first water joint coupling 61 and the second water joint coupling 62 are respectively provided with a flow channel 63 penetrating from the top down. One end of the first water joint coupling 61 and the second water joint coupling 62 are respectively provided with a second connection part 611 and a second connection part 621, and the other end of the first water joint coupling 61 and the second water joint coupling 62 are respectively provided with a first connection part 64 and a first connection part 65, and the first connection part 64 and the first connection part 65 can be connected externally to a water supply device. It should he noted that the first connection part 64 and 65 of the first water joint coupling 61 and the second water joint coupling 62 can be adjusted adaptively due to the difference of the external water equipment. The outer wall of the second connection part 611 is provided with at least a sealing ring 6101 and an external thread, and the outer wall of the second connection part 621 is provided with at least a scaling ring 6201 and an external thread, wherein the first water joint coupling 61 can be screwed into the lower inner hole 332 of the joint nut 3 of the first assembly cavity 4 via the external thread of the second connection part 611. the upper sealing ring 6101 of the first water joint coupling 61 just snaps onto the step edge 330 of the joint nut 3, and the first connection part 64 of the first water joint coupling 61 can be connected to a top-spout device (not shown) externally. The second water joint coupling 62 can be screwed into the lower inner hole 332 of the joint nut 3 of the second assembly cavity 5 via the external thread of the second connection part 621. the upper sealing ring 6201 of the second water joint coupling 62 just snaps onto the step edge 330 of the joint nut 3, and the second connection part 65 of the second water joint coupling 62 is used to connect to a hand-held shower (not shown) externally. It should be noted that the first connection part 64 and the second connection part 65 can be adaptively designed according to the structure of the actual water equipment connection interface.

[0017] As shown in Fig.9 and Fig.12, a blocking edge 612 is further provided on the side wall of the first water joint coupling 61, and the external hole 21 of the housing 2 is provided with a counterbore 212 on the side of the insertion end of the first water joint coupling 61. The blocking edge 612 of the first water joint coupling 61 and the counterbore 212 of the external hole 21 are mutually coordinated, which can effectively control the insertion depth of the second connection part 611 and avoid the bottom of the second connection part 611 and the bottom of the water outlet chamber 11 of the water outlet main body 1 interfere with each other.

The assembly method of the water outlet device disclosed in the present invention is described below in detail.

Step 1: As shown in Fig. 7, firstly, the sealing ring 322 is set on the groove 321 of the outer wall 32 of the two joint nuts 3, and then the two joint nuts 3 are placed respectively into two corresponding upper and lower water outlet chambers 11 of the water outlet main body 1. The rotation-stopping notch 36 of the joint nut 3 facing the bottom 110 of the water outlet chamber 11 and the rotation-stopping block 111 of the water outlet chamber 11 are engaged with each other. Meanwhile, the arc-shaped notch 34 at the bottom of the joint nut 3 corresponds to a communication portion between the water outlet chamber 11 and the mixed water channel 13.

Step 2: As shown in Thg.3, Fig.8 and Fig.9, the positioning protrusions 23 at the end of the water outlet main body 1 are opposed to the positioning notches 22 at the end of the housing 2. With positioning cooperation of the positioning protrusions 23 and the positioning notches 22, the water outlet main body t with the joint nut 3 assembled is wholly placed in the mounting cavity 210 of the housing 2 so that the joint nut 3 in the water outlet chamber 11 above the water outlet main body t is aligned with the external hole 21 above the housing 2, thus the first assembly cavity 4 is formed; meanwhile, the joint nut 3 in the water outlet chamber 11 below the water outlet main body 1 is aligned with the external hole 21 below the housing 2, thus a second assembly cavity 5 is formed.

100211 Step 3: As shown in Fig. 9 and Fig. 10, the second connection part 611 of the first water joint coupling 61 is screwed into the inner hole 33 of the joint nut 3 of the first assembly cavity 4 to realize communication between the flow channel 63 of the first water joint coupling 61 and the water path in the first assembly cavity 4. The second connection part 621 of the second water joint coupling 62 is screwed into the inner hole 33 of the joint nut 3 of the second assembly cavity 5 to realize communication between the flow channel 63 of the second water joint coupling 62 and the water path in the second assembly cavity 5.

Step 4: As shown in Fig.11 and Fig.13, the water-mixing valve 7 is assembled at one end of the water outlet main body 1 and the water path switching valve 8 is assembled at the other end, then two handles 9 are assembled at both ends of the housing 2 to complete the assembly of the entire water outlet device.

Claims (10)

1. Cairns A water outlet device with joint nut, wherein compris.ng a water outlet main body, a housing and a joint nut, the housing is provided with a mounting cavity for assembling the water outlet main body penetrating the housing from front to back along its longitude direction, and two mounting holes are formed at each end of the housing, and at least one water outlet chamber is provided in the radial position of the water outlet main body, at least a water path is provided in axial direction of the water outlet main body, the water path is in communication with the bottom of the water outlet chamber, the water outlet chamber has a built-in joint nut, and the joint nut can't rotate relative to the water outlet chamber; when the water outlet main body is set into the mounting cavity of the housing via one of two mounting holes, the housing is provided with an external hole at the opposite position of the water outlet chamber of the water outlet main body, and the aperture X1 of the external hole is less than the outer aperture X2 of the outer edge of the joint nut to ensure that the joint nut is fixed at the inner end of the external hole, and the inner hole of the joint nut and the external hole penetrate each other to form an assembly cavity.
2. 2. The water outlet device with joint nut according to claim 1, wherein the outer wall of the joint nut is provided with at least one groove, a sealing ring is sleeved on the groove, and when the joint nut is inserted into the water outlet chamber, it is ensured that the water flowing through the water outlet chamber will not leak out through the gap between the joint nut and the water outlet chamber by means of the scaling ring.
3. 3. The water outlet device with joint nut according to claim 1, wherein the joint nut is provided with a recess at the bottom facing the water outlet chamber, when the joint nut is placed in the water outlet chamber, the recess is in communication with the water path inside the water outlet chamber.
4. 4. The water outlet device with joint nut according to claim 1, wherein the bottom of the water outlet chamber is provided with a rotation-stopping block, and the bottom of the corresponding joint nut is provided with a rotation-stopping notch, when the joint nut is inserted into the corresponding water outlet chamber, the rotation-stopping notch and the rotation-stopping block are engaged with each other, so that the joint nut can't be rotated in the water outlet chamber.
5. 5. the water outlet device with joint nut according to any one of claims 1 to 4, wherein the water outlet main body is cylindrical in shape, and the water outlet main body is further provided with a water joint coupling for adapting to the joint nut, one end of the water joint coupling is provided with a first connection part which can be externally connected to water equipment, and the other end is provided with a second connection part, and an flow channel is provided inside the water joint coupling, the outer wall of the second connection part is respectively provided with at least one sealing ring and an external thread matched with the joint nut from the top down, and the water joint coupling is inserted into an assembly cavity formed by the external hole and the inner hole of the joint nut via the second connection part, and screwed into and sealed by the inner hole of the joint nut to realize communication between the flow channel of the water joint coupling and the water path inside the water outlet main body.
6. 6. the water outlet device with joint nut according to claim 5, wherein the second connection part of the water joint coupling is further provided with a blocking edge; the external hole of the housing is provided with a counterbore at the insertion end, and the blocking edge of the water joint coupling and the counterbore of the external hole are mutually coordinated to restrict the position of each other.
7. 7. The water outlet device with joint nut according to claim 5, wherein the inner wall of the joint nut is provided with a step edge, and the inner hole of the joint nut is divided into an upper inner hole and a lower inner hole via the step edge, wherein the aperture of the upper inner hole is greater than the aperture of the lower inner hole, the inner wall of the lower inner hole is provided with a thread, the sealing ring of the second connection part of the water joint coupling is clamped on the step edge, and it is ensured that the water flowing through the joint nut will not leak out through the gap between the water oint coupling and the joint nut by means of the sealing ring.
8. 8. the water outlet device with joint nut according to any one of claims 5-7, wherein the water outlet main body, the joint nut and the water joint coupling are all made of plastic material, and the water outlet main body is cylindrical in shape, the water outlet main body is provided with a water outlet chamber respectively at an upper position and a lower position in the radial direction, at least two mutually separated water paths are provided along the axial direction, and each water path is in communication with the bottom of the adjacent water outlet chamber; the housing is provided with an external hole respectively at a position opposite to the water outlet chambers, and there are two joint nuts, wherein a first assembly cavity is formed by the joint nut in the upper water outlet chamber and the external hole, and a second assembly cavity is formed by the joint nut in the lower water outlet chamber and the external hole; there are two water joint couplings, each of which being mounted on the first assembly cavity and the second assembly cavity by means of the second connection part.
9. 9. the water outlet device with joint nut according to claim 1, wherein the mounting hole at at least one end of the housing is provided with at least one positioning notch, and one end of the water outlet main body is provided with a positioning protrusion opposite to the position of the positioning notch, when the water outlet main body is inserted into the mounting cavity of the housing, the positioning protrusion is aligned with the positioning notch, to ensure that the orientation of the water outlet chamber on the water outlet main body is opposite to the external hole of the housing.
10. 10. the water outlet device with joint nut according to claim 9, wherein there are two positioning notches, which are distributed along the circumference of the mounting hole; there are two positioning protrusions, which are arranged on the outer diameter of the end of the water outlet main body and are opposite to the positioning notches.