A faucet pre-embedded box

Abstract

The application discloses a faucet pre-embedded box, which comprises a box body, two water inlet interfaces, three water outlet interfaces, a first abutting seat and a second abutting seat. The water inlet interfaces and the water outlet interfaces are arranged on the outer side wall of the box body. The first abutting seat and the second abutting seat corresponding to the water inlet interfaces and the water outlet interfaces are formed in the box body. The first abutting seat and the second abutting seat are both provided with abutting sealing surfaces which are arranged obliquely to the mounting direction of the valve seat. Water inlet through holes are formed in the water inlet interfaces, and water outlet through holes are formed in the water outlet interfaces. The water inlet through holes and the water outlet through holes extend through the corresponding abutting seats and the abutting sealing surfaces. The water inlet through holes and the water outlet through holes are straight holes. Compared with the prior art, the abutting sealing surfaces are arranged obliquely, so that the valve seat can be better sealed and connected with the abutting sealing surfaces when being mounted on the pre-embedded box.

Description

Technical Field

[0001] This invention relates to the field of concealed faucets, specifically to a faucet pre-embedded box. Background Technology

[0002] Concealed faucets are installed within the wall, with only the operating handle exposed on the wall surface. They are aesthetically pleasing and do not take up indoor space. Existing concealed faucets, such as CN202531902U – a wall-mounted faucet pre-embedded integrated module, have a flow channel on the base (the base (including the pre-embedded box) is connected to the pipes inside the wall and sealed in the wall; it requires breaking down the wall to separate it). The valve seat (valve core mounting seat) is then connected to the flow channel on the base. The advantage is that the valve seat and its functional valve core can be upgraded or replaced as needed, and it works in conjunction with the existing base (pre-embedded box) fixed to the wall. However, the flow channel design of the base (pre-embedded box) of this type of split-type concealed faucet is complex, making manufacturing very inconvenient. The more complex the flow channel design on the base, the greater the possibility of blockage and damage. This type of split-type concealed faucet also suffers from poor sealing performance. Since the seal between the valve seat and the base relies solely on the tightening force of the screws to press the inlet and outlet faces of the valve seat and base, the sealing performance is prone to deterioration over long-term use.

[0003] The existing embedded boxes have winding flow paths connecting to the pre-embedded water pipes in the wall, making them prone to blockages and damage. Once the embedded box is damaged, the wall needs to be broken down for repairs, which is very troublesome.

[0004] In view of this, the applicant conducted in-depth research on the aforementioned deficiencies in the prior art, which led to this case. Summary of the Invention

[0005] The main objective of this invention is to provide a faucet pre-embedded box, which has the characteristics of improving the sealing performance of concealed faucets and being less prone to clogging.

[0006] To achieve the above objectives, the solution of the present invention is:

[0007] A faucet pre-embedded box includes a box body, two water inlets, three water outlets, a first abutment seat, and a second abutment seat. The water inlets and outlets are located on the outer wall of the box body. The box body has a first abutment seat and a second abutment seat corresponding to the water inlets and outlets respectively. Each of the first and second abutment seats has an abutment sealing surface inclined to the valve seat installation direction. The water inlets have inlet holes, and the outlets have outlet holes. The inlet holes and outlet holes extend through the corresponding abutment seats and through the abutment sealing surfaces. The inlet holes and outlet holes are straight holes.

[0008] Furthermore, the pre-embedded box is pre-installed in the wall, and the water inlet and outlet interfaces are respectively connected to the pre-embedded pipes in the wall.

[0009] Furthermore, the water inlet and outlet are fused together with the pre-embedded pipes inside the wall.

[0010] Furthermore, the two water inlet ports are respectively connected to the cold water inlet pipe and the hot water inlet pipe inside the wall, and the sealing surfaces on the two first abutment seats are set opposite to each other.

[0011] Furthermore, each of the aforementioned abutment sealing surfaces is a plane; the acute angle formed by each of the aforementioned abutment sealing surfaces and the bottom surface of the pre-embedded box cavity is the same.

[0012] Furthermore, two of the second abutment seats are arranged opposite each other, and another second abutment seat is arranged on the side of the two opposite second abutment seats.

[0013] Furthermore, a fixing seat is provided at the bottom of the inner cavity of the pre-embedded box for providing lateral resistance to the valve seat.

[0014] Furthermore, a retaining seat is formed on both the first and second abutting seats, and the retaining seat is located at the rear of the sealing surface of the abutting seat.

[0015] Furthermore, the box body is square or circular.

[0016] Furthermore, the housing, water inlet, water outlet, first abutment, and second abutment are integrally formed from PPR, copper alloy, or stainless steel.

[0017] With the above structure, the concealed faucet of the present invention has at least the following beneficial effects:

[0018] 1. By setting an inclined sealing surface, the sealing surface on the embedded box forms a sealing connection with the flow channel around the valve seat. Furthermore, as the valve seat is tightened, the clamping force between the valve seat and the sealing surface increases, rather than relying entirely on the tightening force of the locking screws for sealing. This significantly improves the sealing performance between the sealing surface and the valve seat. Because the sealing surface is inclined, the inlet and outlet holes can be designed as straight holes without bends in the flow channel, making the embedded box less prone to clogging and thus extending its service life.

[0019] Second, by arranging the two first abutment seats opposite each other, the valve seat, in a wedge shape, abuts against the sealing surfaces of the two first abutment seats. The locking force along the valve seat installation direction is converted into a larger abutting force against the sealing surfaces, allowing the valve seat to be securely installed between the two first abutment seats. The same applies to the two oppositely arranged second abutment seats.

[0020] Third, the abutment sealing surface is designed as a plane, which facilitates processing and allows for better sealing connection with the valve seat and the sealing ring on the valve seat. Of course, the abutment sealing surface can also be designed as an inclined curved surface or other shapes, ensuring that the normal direction of the tangential surface of the abutment sealing surface where the sealing part is located is not parallel to the installation direction of the valve seat.

[0021] Fourth, by setting a retainer, the lateral component force generated on the first or second abutment seat due to the valve seat abutting against the sealing surface can be resisted by the retainer. In use, a part of the valve seat will be stuck in the rear of the retainer, thus resisting the lateral deformation of the abutment seat and reducing the risk of damage to the abutment seat.

[0022] Compared with the prior art, the present invention, by setting the inclined top sealing surface, enables the valve seat to achieve a better sealing connection with the top sealing surface when installed on the pre-embedded box. Attached Figure Description

[0023] Figure 1 This invention relates to a three-dimensional structural diagram of a faucet pre-embedded box.

[0024] Figure 2 This is a front view structural diagram of the present invention.

[0025] Figure 3 This is an exploded structural diagram of the present invention and the valve seat.

[0026] Figure 4 This is a three-dimensional structural schematic diagram of another embodiment of the present invention.

[0027] In the picture:

[0028] 1. Box body; 2. Water inlet interface; 21. Water inlet through hole; 3. Water outlet interface; 31. Water outlet through hole; 4. First abutment seat; 5. Second abutment seat; 41. Abutment sealing surface; 42. Card seat; 6. Fixing seat;

[0029] Valve seat 100; locking screw 110. Detailed Implementation

[0030] To further explain the technical solution of the present invention, the present invention will be described in detail below through specific embodiments.

[0031] like Figures 1 to 4As shown, this invention relates to a faucet pre-embedded box, which includes a box body 1, two water inlet ports 2, three water outlet ports 3, a first abutment seat 4, and a second abutment seat 5. The water inlet ports 2 and water outlet ports 3 are located on the outer side wall of the box body 1. The box body 1 has a first abutment seat 4 and a second abutment seat 5 that correspond one-to-one with the water inlet ports 2 and the water outlet ports 2, respectively. The first abutment seat 4 and the second abutment seat 5 each have an abutment sealing surface 41 that is inclined to the installation direction of the valve seat 100. The water inlet ports 2 have a water inlet through hole 21, and the water outlet ports 3 have a water outlet through hole 31. The water inlet through hole 21 and the water outlet through hole 31 extend through the corresponding abutment seat and through the abutment sealing surface 41. The water inlet through hole 21 and the water outlet through hole 31 are straight holes.

[0032] Thus, the concealed faucet of the present invention, by setting an inclined abutment sealing surface 41, achieves a sealing connection between the abutment sealing surface 41 on the pre-embedded box and the flow channel around the valve seat 100. The valve seat is installed on the pre-embedded box along the installation direction by screws 110. As the locking screws 110 on the valve seat 100 are tightened, the abutment force between the valve seat 100 and the abutment sealing surface 41 increases, and the sealing is not entirely dependent on the tightening force of the locking screws 110, thereby significantly improving the sealing performance between the abutment sealing surface 41 and the valve seat 100. Because the abutment sealing surface 41 is inclined, the inlet hole 21 and the outlet hole 31 can be designed as straight holes without bends in the flow channel, making the pre-embedded box less prone to clogging and thus having a longer service life.

[0033] Preferably, the pre-embedded box is pre-installed in the wall, and both the inlet and outlet ports 2 are connected to pre-embedded pipes (not shown in the figure) within the wall. Preferably, the box body 1, inlet port 2, outlet port 3, first abutment 4, and second abutment 5 are integrally formed from PPR, copper alloy, or stainless steel. The pipes within the wall are also made of PPR, and the inlet port 2 and outlet port 3 are fused to the pre-embedded pipes within the wall. The pre-embedded box is also made of PPR, which has a similar service life to the pipes within the wall, resulting in a similar lifespan between the pre-embedded box and the pipes within the wall. That is, after a relatively long period, such as twenty years, if the pre-embedded box begins to damage, the pre-embedded water pipes within the wall will have also reached the end of their service life, requiring a complete reinstallation of the entire plumbing system. At this point, the wall can be demolished to replace the pre-embedded box with a brand new one.

[0034] Preferably, the two water inlet ports 2 are respectively connected to the cold water inlet pipe and the hot water inlet pipe inside the wall, and the abutting sealing surfaces 41 on the two first abutting seats 4 are arranged opposite each other. By arranging the two first abutting seats 4 opposite each other, the valve seat 100 abuts against the abutting sealing surfaces 41 of the two first abutting seats 4 in a wedge shape. The locking force along the installation direction of the valve seat 100 is converted into a larger abutting force against the abutting sealing surfaces 41, and the valve seat 100 can be stably installed between the two first abutting seats 4. The same applies to the two oppositely arranged second abutting seats 5.

[0035] Preferably, each of the abutment sealing surfaces 41 is a plane; the acute angle formed by each of the abutment sealing surfaces 41 and the bottom surface of the pre-embedded box cavity is the same. The abutment sealing surfaces 41 are designed as planes to facilitate processing and to better seal against the valve seat 100 and the sealing ring on the valve seat 100. Alternatively, the abutment sealing surfaces 41 can be designed as inclined curved surfaces, ensuring that the normal direction of the tangential surface of the abutment sealing surface 41 where the sealing part is located is not parallel to the installation direction of the valve seat 100. The inclination angle of each of the abutment sealing surfaces 41 is the same, facilitating processing. Preferably, the acute angle formed between the abutment sealing surface 41 and the bottom surface of the pre-embedded box cavity is 45-90 degrees, preferably 80 degrees.

[0036] Preferably, a retaining seat 42 is formed on both the first abutment seat 4 and the second abutment seat 5, and the retaining seat 42 is disposed at the rear of the sealing surface of the abutment seat. By providing the retaining seat 42, the lateral component force generated on the first abutment seat 4 or the second abutment seat 5 by the valve seat 100 abutting against the sealing surface 41 can be resisted by the retaining seat 42. In use, a part of the valve seat 100 will be locked at the rear of the retaining seat 42, thus resisting the lateral deformation of the abutment seat and reducing the risk of damage to the abutment seat.

[0037] Preferably, two second abutment seats 5 are arranged opposite each other, and another second abutment seat 5 is disposed on the side of the two opposite second abutment seats 5. Further, a fixing seat 6 for providing a lateral abutment force to the valve seat 100 is provided at the bottom of the pre-embedded box cavity. When the valve seat 100 abuts against the second abutment seat 5 located on the side of the two opposite second abutment seats 5, the valve seat 100 will be subjected to a reaction force generated by the second abutment seat 5. The fixing seat 6 can resist the component of this reaction force along the direction perpendicular to the installation direction of the valve seat 100. This component force can also be partially offset by the retaining seat 42.

[0038] The shape of the box 1 can be designed according to market demand, such as the box 1 being square or round.

[0039] Compared with the prior art, the present invention, by setting the inclined abutment sealing surface 41, enables the valve seat 100 to better seal with the abutment sealing surface 41 when it is installed on the pre-embedded box.

[0040] The above embodiments and figures are not intended to limit the product form and style of the present invention. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of the present invention.

Claims

1. A faucet pre-embedded box, characterized in that, The embedded box includes a box body, two water inlet ports, three water outlet ports, a first abutment seat, and a second abutment seat. The water inlet ports and water outlet ports are located on the outer wall of the box body. The box body has a first abutment seat and a second abutment seat that correspond one-to-one with the water inlet ports and water outlet ports, respectively. Both the first abutment seat and the second abutment seat have abutment sealing surfaces that are inclined to the installation direction of the valve seat. Each water inlet port has a water inlet through hole, and each water outlet port has a water outlet through hole. The water inlet through holes and water outlet through holes extend through the corresponding abutment seats and through the abutment sealing surfaces; the water inlet through holes and water outlet through holes are straight holes. The pre-embedded box is pre-installed in the wall, and the water inlet and outlet interfaces are respectively connected to the pre-embedded pipes in the wall. The two water inlet ports are respectively connected to the cold water inlet pipe and the hot water inlet pipe inside the wall, and the sealing surfaces on the two first abutment seats are set opposite to each other; Two of the second abutment seats are arranged opposite each other, and another second abutment seat is arranged on the side of the two opposite second abutment seats; a fixing seat for providing lateral abutment force to the valve seat is provided at the bottom of the inner cavity of the pre-embedded box.

2. A faucet pre-embedded box as described in claim 1, characterized in that, The water inlet and outlet are fused together with the pre-embedded pipes inside the wall.

3. A faucet pre-embedded box as described in claim 1, characterized in that, Each of the aforementioned abutment sealing surfaces is a plane; the acute angle formed by each of the aforementioned abutment sealing surfaces and the bottom surface of the pre-embedded box cavity is the same.

4. A faucet pre-embedded box as described in claim 1, characterized in that, Each of the first and second abutment seats has a retaining seat, which is located at the rear of the sealing surface of the abutment seat.

5. A faucet pre-embedded box as described in claim 1, characterized in that, The box is square or round.

6. A faucet pre-embedded box as described in claim 1, characterized in that, The box body, water inlet, water outlet, first abutment and second abutment are integrally formed from PPR, copper alloy or stainless steel.

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