A concealed faucet

Abstract

The present invention relates to the technical field of faucets, and in particular to a concealed faucet. It includes a protective box body, which is a top opening structure; a waterway valve body, which is fixedly installed in the inner cavity of the protective box body, and has a cold water inlet waterway, a hot water inlet waterway, and an adjustment hole connected to the water inlet waterway; a valve body cover plate, which is arranged above the protective box body and is bolted to the protective box body; a first internal thread structure is formed at the bottom of the valve body cover plate, and the first internal thread structure is connected to the adjustment hole of the waterway valve body through a hollow adjustment rod to achieve the connection between the waterway valve body and the valve body cover plate; and a valve core is installed in the valve body cover plate, and the valve core is connected to the top water outlet of the adjustment rod; and a water outlet nozzle is installed on the upper surface of the valve body cover plate, and the water outlet nozzle is connected to the valve core. The concealed faucet is not affected by pre-embedding, and is easy to maintain and replace when abnormalities occur.

Description

Technical Field

[0001] The invention relates to the technical field of faucets, in particular to a concealed faucet. Background Art

[0002] Most of the concealed faucets on the market have different depths of embedded parts due to the different depths of the embedded holes dug during installation, which causes the panels to protrude from the tile surface or the matching screws cannot fix the panels. A small number of them can adjust the depth of the panel installation by cutting the length of the plastic thread. This method will result in insufficient fixing strength, easy panel fall-off, and difficult or uneven cutting of the plastic thread, which will cause the panel to be unfixed or tilted.

[0003] For example, the invention patent with application publication number CN102705540A, applicant Zhi Wenhui, application publication date October 3, 2012, and titled "A concealed shower faucet" specifically discloses the following technical solutions:

[0004] A concealed shower faucet comprises a box body, a top cover, a valve body and a valve core, wherein the box body is provided with a cold water installation pipe hole 1A, a hot water installation pipe hole 1B and a water outlet pipe hole; the valve body is arranged in the box body; the valve body is provided with a cold water inlet pipe and a hot water outlet pipe; the box body comprises a bottom box body with an opening at one end and a top box body with openings at both ends, wherein one end of the top box body is plugged into the bottom box body and the other end is buckled with the top cover.

[0005] Yes, the top cover is snap-fitted to the box body, and the installation position of the top cover relative to the box body cannot be adjusted. It is affected by the depth of the pre-embedded box body, which can easily affect the aesthetics.

[0006] Based on this, the present invention provides a novel concealed faucet to overcome the defects in the prior art. Summary of the invention

[0007] The purpose of the present invention is to provide a concealed faucet, which not only reduces the manufacturing cost, but also greatly reduces the difficulty of installation, reduces the economic cost investment, and at the same time reduces the risk of abnormalities, so that the installation of the valve body cover plate is not affected by pre-embedding, and maintenance and replacement are convenient when abnormalities occur.

[0008] In order to achieve the above object, the present invention provides a concealed faucet, which comprises:

[0009] A protection box body, wherein the protection box body is a top-opening structure;

[0010] A waterway valve body, the waterway valve body is fixedly installed in the inner cavity of the protection box body, and the waterway valve body has a cold water inlet waterway, a hot water inlet waterway, and an adjustment hole connected with the water inlet waterway;

[0011] A valve body cover plate, wherein the valve body cover plate is arranged above the protection box body and is bolted to the protection box body; a first internal thread structure is formed at the bottom of the valve body cover plate, and the first internal thread structure is connected to the adjustment hole of the water circuit valve body through a hollow adjustment rod to achieve the connection between the water circuit valve body and the valve body cover plate; and a valve core is installed in the valve body cover plate, and the valve core is connected to the top water outlet of the adjustment rod; a water outlet nozzle is installed on the upper surface of the valve body cover plate, and the water outlet nozzle is connected to the valve core.

[0012] Furthermore, the concealed faucet also includes:

[0013] A decorative panel is installed on the upper surface of the valve body cover plate.

[0014] Furthermore, an inner groove is formed on the contact surface between the valve body cover plate and the tile, and a first sealing ring is placed in the inner groove.

[0015] Furthermore, both ends of the adjusting rod are provided with a second sealing ring, so that the two ends of the adjusting rod are sealed and connected to the first internal thread structure and the adjusting hole through the second sealing ring respectively.

[0016] Furthermore, the cold water inlet waterway and the hot water inlet waterway in the waterway valve body are arranged parallel and opposite to each other;

[0017] The regulating hole is arranged in the middle of the water valve body and is perpendicular to the cold water inlet waterway and the hot water inlet waterway.

[0018] Furthermore, two adjusting holes are provided, which are arranged side by side and at intervals.

[0019] Furthermore, a positioning portion is formed on the outer wall side of the water circuit valve body, a threaded hole is opened in the positioning portion, and a positioning bolt is installed in the threaded hole to achieve a fixed connection between the water circuit valve body and the protection box body.

[0020] Furthermore, three positioning portions are provided, and the three positioning portions are arranged in a triangle.

[0021] Furthermore, a control handle is installed on the valve body cover plate.

[0022] The present invention has the following beneficial effects:

[0023] When the concealed faucet of the present invention is used, the water valve body is first fixedly installed in the protective box body, and the two are fixedly installed together, and then buried together in the wall. Next, the top end of the adjustment rod is fixedly connected to the valve body cover plate. Correspondingly, when installing the valve body cover plate, the adjustment rod must be aligned and inserted into the adjustment hole, and then the valve body cover plate is locked with bolts. During this locking process, the valve body cover plate will first contact the tile surface, and continue to lock, and the bolts will tighten and fix the valve body cover plate.

[0024] During the locking process, when the pre-buried waterway valve body is shallow from the tile surface, after the valve body cover is locked, the depth of the adjusting rod inserted into the adjusting hole is deeper; when the pre-buried waterway valve body is deep from the tile surface, after the valve body cover is locked, the depth of the adjusting rod inserted into the adjusting hole is shallower, the bottom end of the adjusting rod is adjustable relative to the adjusting hole in the waterway valve body, and its bottom end is installed at different heights of the adjusting hole, and then the position depth of the valve body cover is converted into the position depth of the adjusting rod in the adjusting hole, so that the adjusting rod can be adjusted up and down synchronously with the valve body cover. After the valve body cover is locked and fixed, the water outlet nozzle is positioned and fixed accordingly, which is not affected by the depth of the embedded parts in the wall, and has better aesthetics.

[0025] In the concealed faucet of the present invention, water flows inside the adjusting rod, and the cold and hot water are introduced into the valve body cover plate for mixing and adjustment, which simplifies the structure of the embedded valve body, not only reduces the manufacturing cost, but also does not require cutting operations, etc., which can greatly reduce the difficulty of installation, reduce economic cost investment, and reduce the risk of abnormalities. At the same time, in the actual installation process, since the installation position of the embedded parts may vary in depth, the distance between the water valve body and the tile surface cannot be guaranteed to be consistent. The concealed faucet can convert the position depth of the valve body cover plate into the position depth of the adjusting rod in the adjusting hole, optimizes the design space requirements, simplifies the structural design, and ensures that the installation position of the valve body cover plate is not affected by the depth of the embedded parts. In addition, the valve core is designed to be outside the wall, which is not affected by the embedding, and is convenient for maintenance and replacement when abnormalities occur. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 An exploded view of a concealed faucet structure in an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the structure of a concealed faucet after assembly according to an embodiment of the present invention;

[0029] Figure 3 for Figure 2 A cross-sectional view of

[0030] Figure 4 for Figure 3 A partial enlarged view of

[0031] In the figure: a protective box body 1; a water valve body 2, a cold water inlet waterway 20, a hot water inlet waterway 21, an adjusting hole 22, a positioning part 23, a positioning bolt 24; a valve body cover plate 3, a valve core 30, an inner groove 31, a first inner thread structure 32; an adjusting rod 4, a second sealing ring 40; a bolt 5; a water outlet nozzle 6; a control handle 7; and a decorative panel 8. DETAILED DESCRIPTION

[0032] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present invention.

[0033] The following is combined with Figure 1 To Attachment Figure 4 And specific embodiments, the present invention is described in detail:

[0034] like Figures 1 to 4 As shown, the present invention provides a concealed faucet, which includes:

[0035] A protective box body 1, wherein the protective box body 1 is a top-opening structure;

[0036] A water circuit valve body 2, wherein the water circuit valve body 2 is fixedly installed in the inner cavity of the protection box body 1, and the water circuit valve body 2 has a cold water inlet waterway 20 for cold water to flow in, a hot water inlet waterway 21 for hot water to flow in, and an adjusting hole 22 connected with the water inlet waterway, that is, the adjusting hole 22 is used to communicate with the cold water inlet waterway 20 and the hot water inlet waterway 21, so as to simplify the water circuit structure in the water circuit valve body 2 and reduce the failure rate;

[0037] The valve body cover plate 3 is arranged above the protection box body 1 and connected with the protection box body 1 by bolts 5; and a first internal thread structure 32 is formed at the bottom of the valve body cover plate 3, and the first internal thread structure 32 is connected with the adjustment hole 22 of the water circuit valve body 2 through a hollow adjustment rod 4, so as to realize the connection between the water circuit valve body 2 and the valve body cover plate 3. At the same time, a valve core 30 is installed in the valve body cover plate 3, and the valve core 30 is connected with the top water outlet of the adjustment rod 4; a water outlet nozzle 6 is installed on the upper surface of the valve body cover plate 3, and the water outlet nozzle 6 is connected with the valve core. Correspondingly, the cold water introduced by the cold water inlet waterway 20 and the hot water introduced by the hot water inlet waterway 21 flow into the valve core after passing through the adjustment rod 4 to mix the cold and hot water, and finally the mixed water flows out through the water outlet nozzle 6. Specifically, a control handle 7 may be installed on the valve body cover plate 3 to control the opening and closing of the valve core 30 and the water output, so as to control the water flow out of the water outlet nozzle 6 .

[0038] When using the concealed faucet of the present invention, the water valve body 2 is first fixedly installed in the protective box body 1, and the two are fixedly installed together as embedded parts, and then buried together in the wall. Next, the top of the adjusting rod 22 is fixedly connected to the valve body cover plate 3. Correspondingly, when installing the valve body cover plate 3, the adjusting rod 22 must be aligned and inserted into the adjusting hole 22, and then the valve body cover plate 3 is locked with the bolt 5. During this locking process, the valve body cover plate 3 will first contact the tile surface, and continue to lock, and the bolt 5 will tighten and fix the valve body cover plate 3.

[0039] During the locking process, when the pre-buried waterway valve body 2 is shallow from the tile surface, after the valve body cover plate 3 is locked, the depth of the adjusting rod 4 inserted into the adjusting hole 22 is deeper; when the pre-buried waterway valve body 2 is deep from the tile surface, after the valve body cover plate 3 is locked, the depth of the adjusting rod 4 inserted into the adjusting hole 22 is shallower, the bottom end of the adjusting rod 4 is adjustable relative to the adjusting hole 22 in the waterway valve body 2, and its bottom end is installed at different heights of the adjusting hole 22, and then the position depth of the valve body cover plate 3 is converted into the position depth of the adjusting rod 4 in the adjusting hole 22, so that the adjusting rod 4 can be adjusted up and down synchronously with the valve body cover plate 3. After the valve body cover plate 3 is locked and fixed, the water outlet nozzle 6 is positioned and fixed accordingly, which is not affected by the depth of the embedded parts in the wall, and has better aesthetics.

[0040] In the concealed faucet of the present invention, water flows inside the adjusting rod 4, and the cold and hot water are introduced into the valve body cover plate 3 for mixing and adjustment, which simplifies the structure of the embedded valve body, not only reduces the manufacturing cost, but also does not require cutting operations, etc., which can greatly reduce the difficulty of installation, reduce economic cost investment, and reduce the risk of abnormalities. At the same time, in the actual installation process, since the installation position of the embedded parts may vary in depth, the distance between the water valve body 2 and the tile surface cannot be guaranteed to be consistent, and the concealed faucet can convert the position depth of the valve body cover plate 3 into the position depth of the adjusting rod 4 in the adjusting hole 22, optimizes the design space requirements, simplifies the structural design, and ensures that the installation position of the valve body cover plate 3 is not affected by the depth of the embedded parts. In addition, the valve core is designed to be outside the wall, which is not affected by the pre-embedded, and is convenient for maintenance and replacement when abnormalities occur.

[0041] Furthermore, the concealed faucet also includes:

[0042] The decorative panel 8 is mounted on the upper surface of the valve body cover plate 3 to play a decorative and beautifying role and improve the overall aesthetics of the structure.

[0043] Furthermore, an inner groove 31 is formed on the contact surface between the valve body cover plate 3 and the tile, and a first sealing ring is placed in the inner groove 31 to improve the sealing performance between the valve body cover plate 3 and the tile surface and prevent water in the valve body cover plate 3 from leaking out.

[0044] Furthermore, both ends of the adjusting rod 4 are provided with a second sealing ring 40, so that the two ends of the adjusting rod 4 are respectively sealed and connected with the first internal thread structure 32 and the adjusting hole 22 through the second sealing ring, so as to enhance the sealing of the connection and avoid water leakage. Specifically, the cold water inlet waterway 20 and the hot water inlet waterway 21 in the waterway valve body 2 are parallel and oppositely arranged; the adjusting hole 22 is arranged in the middle of the waterway valve body 2 and is perpendicular to the cold water inlet waterway 20 and the hot water inlet waterway 21, and the cold water inlet waterway 20, the hot water inlet waterway 21 and the adjusting hole 22 form a similar three-way structure. In this embodiment, two adjusting holes 22 are arranged side by side and spaced apart. The adjusting rod 4 can be installed at different heights of the adjusting hole 22, and a second sealing ring 40 is set at both ends of the adjusting rod 4 for sealing. The water in the water valve body 2 can be led to the valve body cover 2 through the adjusting rod 4, and the cold and hot water are mixed through the valve core 30, and finally the mixed water is sprayed out through the water outlet nozzle 6. Due to the setting of the second sealing ring 40, the whole structure has better sealing performance to avoid water leakage.

[0045] Furthermore, a positioning portion 23 is formed on the outer wall of the water circuit valve body 2, and a threaded hole is formed in the positioning portion 23. A positioning bolt 24 is installed in the threaded hole to achieve a fixed connection between the water circuit valve body 2 and the protection box body 1. The connection method is simple and convenient for disassembly and installation. Specifically, three positioning portions 23 are provided, and the three positioning portions 23 are arranged in a triangle. The positioning bolts 24 are arranged in a triangle, and the positioning stability is good.

[0046] The present invention is further described above with the aid of specific embodiments. However, it should be understood that the specific description here should not be construed as limiting the essence and scope of the present invention. Various modifications made to the above embodiments by ordinary technicians in the field after reading this specification are all within the scope of protection of the present invention.

Claims

1. A concealed faucet, characterized in that: It includes: A protection box body, wherein the protection box body is a top-opening structure; A waterway valve body, the waterway valve body is fixedly installed in the inner cavity of the protection box body, and the waterway valve body has a cold water inlet waterway, a hot water inlet waterway, and an adjustment hole connected to the cold water inlet waterway and the hot water inlet waterway; A valve body cover plate, the valve body cover plate is arranged above the protection box body and is bolted to the protection box body; a first internal thread structure is formed at the bottom of the valve body cover plate, the first internal thread structure is connected to the adjustment hole of the water circuit valve body through a hollow adjustment rod, and the adjustment rod and the adjustment hole can slide relative to each other to achieve the connection between the water circuit valve body and the valve body cover plate; a valve core is installed in the valve body cover plate, and the valve core is communicated with the top water outlet of the adjustment rod; a water outlet nozzle is installed on the upper surface of the valve body cover plate, and the water outlet nozzle is communicated with the valve core; A decorative panel is installed on the upper surface of the valve body cover plate; an inner groove is formed on the contact surface between the valve body cover plate and the tile, and a first sealing ring is placed in the inner groove.

2. The concealed faucet according to claim 1, characterized in that: Both ends of the adjusting rod are provided with a second sealing ring, so that the two ends of the adjusting rod are respectively sealed and connected with the first internal thread structure and the adjusting hole through the second sealing ring.

3. The concealed faucet according to claim 2, characterized in that: The cold water inlet waterway and the hot water inlet waterway in the waterway valve body are arranged parallel and opposite to each other; The regulating hole is arranged in the middle of the water valve body and is perpendicular to the cold water inlet waterway and the hot water inlet waterway.

4. The concealed faucet according to claim 3, characterized in that: Two adjusting holes are arranged side by side and at intervals.

5. The concealed faucet according to claim 1, characterized in that: A positioning portion is formed on the outer wall side of the water circuit valve body, a threaded hole is opened in the positioning portion, and a positioning bolt is installed in the threaded hole to achieve a fixed connection between the water circuit valve body and the protection box body.

6. The concealed faucet according to claim 5, characterized in that: The three positioning portions are provided, and the three positioning portions are arranged in a triangle.

7. The concealed faucet according to claim 1, characterized in that: A control handle is installed on the valve body cover plate.

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