Water return prevention type faucet

Abstract

The utility model provides a reverse water prevention type faucet which comprises a valve body, a water outlet is formed in the valve body, a reverse water prevention mechanism is installed at the position, corresponding to the water outlet, of the valve body, the reverse water prevention mechanism comprises a channel assembly and a reverse water prevention piece which are installed at the water outlet, the channel assembly comprises a channel plate, and a reverse water prevention hole communicated with the water outlet is formed in the channel plate. A connecting frame is arranged on the anti-water-backflow hole, the anti-water-backflow piece comprises an anti-water-backflow plate and a movable rod, a limiting ring is arranged at the end of the movable rod, and an elastic piece is arranged on the movable rod. By means of the structure, under the elastic force effect of the elastic piece of the water return prevention mechanism, the limiting ring can be pushed towards the interior of the valve body, the limiting ring drives the movable rod to move, the movable rod drives the water return prevention plate to move towards the water return prevention hole till the water return prevention plate covers the water return prevention hole, and then the water return prevention hole can be blocked; therefore, the water return phenomenon is prevented, and water in the pipeline can be prevented from being polluted.

Description

Technical Field

[0001] The utility model relates to the technical field of faucets, in particular to an anti-backflow faucet. Background Art

[0002] A faucet is a common name for a water valve, which is used to control the size of the water flow. It is widely used in life because of its water-saving effect. A faucet generally includes a valve body and a valve core. The valve core is rotated to control the rise and fall of the valve core to achieve the size of the connection between the water inlet and outlet channels of the valve body. However, when the faucet is closed in the open drainage state, the water that contacts the outside world at the faucet outlet will easily flow back into the faucet pipe, causing the water in the pipe to be polluted. Utility Model Content

[0003] The utility model discloses an anti-backflow faucet, which mainly solves the problem that water from a faucet outlet in contact with the outside world may flow back into a pipe of the faucet during the process of closing the faucet in an open drainage state.

[0004] To achieve the above purpose, the technical solution of the present invention is implemented as follows:

[0005] The utility model provides an anti-backflow faucet, comprising a valve body, wherein the valve body is provided with a water outlet, an anti-backflow mechanism is installed at a position of the valve body corresponding to the water outlet, the anti-backflow mechanism comprises a channel component and an anti-backflow part installed at the water outlet, the channel component comprises a channel plate, the channel plate is provided with an anti-backflow hole communicated with the water outlet, a connecting frame is provided on the anti-backflow hole, the anti-backflow part comprises an anti-backflow plate and a movable rod arranged on the anti-backflow plate, the movable rod passes through the connecting frame, the anti-backflow plate is arranged on a side of the channel plate facing the water outlet, a limiting ring is provided at the end of the movable rod, an elastic part is provided on the movable rod, one end of the elastic part is supported on the limiting ring, and the other end is supported on the anti-backflow plate.

[0006] In one embodiment, a movable hole is formed through the position of the connecting frame corresponding to the movable rod, and the movable rod passes through the movable hole.

[0007] In one embodiment, a protruding shielding ring is provided along the outer edge of the anti-backflow hole on the side of the channel plate facing the anti-backflow plate, and a raised waterproof ring is provided along the outer edge of the shielding ring on the side of the anti-backflow plate facing the channel plate, and the outer diameter of the shielding ring matches the inner diameter of the waterproof ring.

[0008] In one embodiment, a magnetic member with a circular ring structure is installed on the waterproof ring, and the magnetic member can absorb the shielding ring.

[0009] In one embodiment, a sealing ring is provided on the inner surface of the magnetic member.

[0010] In one embodiment, a concave mounting groove is provided on the waterproof ring at a position corresponding to the magnetic component, and the magnetic component is embedded in the mounting groove.

[0011] In one embodiment, the anti-backflow mechanism further includes a mounting ring spaced apart from the channel plate, and the channel plate and the mounting ring are connected via a connecting rod.

[0012] The advantages or beneficial effects of the above technical solution at least include: in the process of closing the faucet in the open drainage state, since the anti-backflow mechanism is installed at the position of the valve body corresponding to the water outlet, the anti-backflow mechanism includes a channel assembly and an anti-backflow member installed at the water outlet, the channel assembly includes a channel plate, the channel plate is provided with an anti-backflow hole communicating with the water outlet, a connecting frame is provided on the anti-backflow hole, the anti-backflow member includes an anti-backflow plate and a movable rod provided on the anti-backflow plate, the movable rod passes through the connecting frame, the anti-backflow plate is provided on the side of the channel plate facing the water outlet, a limiting ring is provided at the end of the movable rod, an elastic member is provided on the movable rod, one end of the elastic member is supported on the limiting ring, and the other end is supported on the anti-backflow plate, therefore, under the elastic force of the elastic member, the limiting ring will be pushed toward the valve body, so that the limiting ring drives the movable rod to move, and the movable rod drives the anti-backflow plate to move toward the anti-backflow hole, until the anti-backflow plate covers the anti-backflow hole, the anti-backflow hole can be blocked to prevent the backflow phenomenon, thereby preventing the water in the pipeline from being polluted. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings illustrate exemplary embodiments of the present invention and are used to explain the principles of the present invention together with the description. These drawings are included to provide a further understanding of the present invention, and the drawings are included in and constitute a part of this specification.

[0014] Figure 1 A schematic diagram of an anti-backflow faucet according to an exemplary embodiment of the utility model is shown;

[0015] Figure 2 A schematic diagram of an anti-water backflow mechanism according to an exemplary embodiment of the utility model is shown;

[0016] Figure 3 An exploded schematic diagram of an anti-water backflow mechanism according to an exemplary embodiment of the utility model is shown;

[0017] Figure 4 A schematic diagram of an anti-water-reflection component according to an exemplary embodiment of the present utility model is shown.

[0018] Description of reference numerals:

[0019] 1. Valve body;

[0020] 2. Water outlet;

[0021] 3. Anti-water backflow mechanism;

[0022] 31. channel assembly; 311. channel plate; 312. anti-water backflow hole; 313. connecting frame; 314. movable hole; 315. shielding ring; 316. mounting ring; 317. connecting rod;

[0023] 32. Anti-reflection member; 321. Anti-reflection plate; 322. Movable rod; 323. Waterproof ring; 324. Mounting groove;

[0024] 33. Limiting ring;

[0025] 34. Elastic parts;

[0026] 35. Magnetic parts; 351. Sealing ring. DETAILED DESCRIPTION

[0027] The embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as being limited to the embodiments described herein. Instead, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0028] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] The term "including" and its variations used in this document are open inclusions, that is, "including but not limited to". The term "based on" means "based at least in part on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the description below. It should be noted that the concepts of "first", "second", etc. mentioned in the present utility model are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0030] It should be noted that the modifications of "one" and "plurality" mentioned in the present invention are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0031] The names of the messages or information exchanged between multiple devices in the implementation manner of the present utility model are only used for illustrative purposes, and are not used to limit the scope of these messages or information.

[0032] See also Figure 1 , Figure 2 and Figure 3 The embodiment of the utility model provides an anti-backflow faucet, comprising a valve body 1, a water outlet 2 is arranged on the valve body 1, an anti-backflow mechanism 3 is installed at the position of the valve body 1 corresponding to the water outlet 2, the anti-backflow mechanism 3 comprises a channel component 31 and an anti-backflow member 32 installed at the water outlet 2, the channel component 31 comprises a channel plate 311, a anti-backflow hole 312 communicating with the water outlet 2 is arranged on the channel plate 311, a connecting frame 313 is arranged on the anti-backflow hole 312, the anti-backflow member 32 comprises an anti-backflow plate 321 and a movable rod 322 arranged on the anti-backflow plate 321, the movable rod 322 passes through the connecting frame 313, the anti-backflow plate 321 is arranged on the side of the channel plate 311 facing the water outlet 2, a limiting ring 33 is arranged at the end of the movable rod 322, an elastic member 34 is arranged on the movable rod 322, one end of the elastic member 34 is supported on the limiting ring 33, and the other end is supported on the anti-backflow plate 321.

[0033] With the above structure, when the faucet is closed in the open drainage state, since the anti-backflow mechanism 3 is installed at the position of the valve body 1 corresponding to the water outlet 2, the anti-backflow mechanism 3 includes a channel component 31 and an anti-backflow member 32 installed at the water outlet 2, the channel component 31 includes a channel plate 311, the channel plate 311 is provided with an anti-backflow hole 312 communicating with the water outlet 2, the anti-backflow hole 312 is provided with a connecting frame 313, the anti-backflow member 32 includes an anti-backflow plate 321 and a movable rod 322 arranged on the anti-backflow plate 321, the movable rod 322 passes through the connecting frame 313, and the anti-backflow plate 321 is arranged on the channel plate 311 toward the outlet On one side of the water inlet 2, a limiting ring 33 is provided at the end of the movable rod 322, and an elastic member 34 is provided on the movable rod 322. One end of the elastic member 34 is supported on the limiting ring 33, and the other end is supported on the anti-backflow plate 321. Therefore, under the elastic force of the elastic member 34, the limiting ring 33 will be pushed toward the valve body 1, so that the limiting ring 33 drives the movable rod 322 to move, and the movable rod 322 drives the anti-backflow plate 321 to move toward the anti-backflow hole 312 until the anti-backflow plate 321 covers the anti-backflow hole 312, so that the anti-backflow hole 312 can be blocked to prevent the backflow phenomenon, thereby preventing the water in the pipeline from being contaminated.

[0034] In one embodiment, see Figure 2 and Figure 3The connection frame 313 has an active hole 314 at a position corresponding to the active rod 322, and the active rod 322 passes through the active hole 314. In actual use, the setting of the active hole 314 enables the active rod 322 to pass through the connection frame 313 and move along the active hole 314, so that the active rod 322 drives the anti-reflection plate 321 to move.

[0035] In one embodiment, see Figure 3 and Figure 4 A convex shielding ring 315 is provided along the outer edge of the anti-backflow hole 312 on the side of the channel plate 311 facing the anti-backflow plate 321, and a convex waterproof ring 323 is provided along the outer edge of the shielding ring 315 on the side of the anti-backflow plate 321 facing the channel plate 311, and the outer diameter of the shielding ring 315 matches the inner diameter of the waterproof ring 323. In actual use, the cooperation between the shielding ring 315 and the waterproof ring 323 can increase the sealing performance of the edge position when the anti-backflow plate 321 covers the anti-backflow hole 312.

[0036] A magnetic member 35 of a circular ring structure is installed on the waterproof ring 323, and the magnetic member 35 can absorb the shielding ring 315. In actual use, under the magnetic force of the magnetic member 35, the anti-reflection plate 321 can be stably adsorbed on the anti-reflection hole 312.

[0037] The inner surface of the magnetic member 35 is provided with a sealing ring 351. In actual use, the sealing ring 351 can fill the gap between the waterproof ring 323 and the shielding ring 315 to improve the sealing effect.

[0038] The waterproof ring 323 is provided with a concave mounting groove 324 at a position corresponding to the magnetic member 35, and the magnetic member 35 is embedded in the mounting groove 324. In actual use, the magnetic member 35 can be stably fixed in the mounting groove 324 by an adhesive.

[0039] The anti-backflow mechanism 3 also includes a mounting ring 316 spaced apart from the channel plate 311, and the channel plate 311 and the mounting ring 316 are connected by a connecting rod 317. In actual use, the installation of the mounting ring 316 and the connecting rod 317 can facilitate the installation of the channel plate 311 in the valve body 1.

[0040] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They 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, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0041] Those skilled in the art should understand that the above embodiments are only for the purpose of clearly illustrating the present invention, and are not intended to limit the scope of the present invention. For those skilled in the art, other changes or modifications may be made based on the above utility model, and these changes or modifications are still within the scope of the present utility model.

Claims

1. A backflow-proof faucet, characterized in that: It includes a valve body, which is provided with a water outlet, and an anti-backflow mechanism is installed at a position of the valve body corresponding to the water outlet, the anti-backflow mechanism includes a channel assembly and an anti-backflow part installed at the water outlet, the channel assembly includes a channel plate, the channel plate is provided with an anti-backflow hole communicated with the water outlet, a connecting frame is provided on the anti-backflow hole, the anti-backflow part includes an anti-backflow plate and a movable rod arranged on the anti-backflow plate, the movable rod passes through the connecting frame, the anti-backflow plate is arranged on a side of the channel plate facing the water outlet, a limiting ring is provided at the end of the movable rod, an elastic part is provided on the movable rod, one end of the elastic part is supported on the limiting ring, and the other end is supported on the anti-backflow plate.

2. The anti-backflow faucet according to claim 1, characterized in that: A movable hole is formed at a position of the connecting frame corresponding to the movable rod, and the movable rod passes through the movable hole.

3. The anti-backflow faucet according to claim 1, characterized in that: A convex shielding ring is arranged along the outer edge of the anti-backflow hole on the side of the channel plate facing the anti-backflow plate, and a convex waterproof ring is arranged along the outer edge of the shielding ring on the side of the anti-backflow plate facing the channel plate, and the outer diameter of the shielding ring matches the inner diameter of the waterproof ring.

4. The anti-backflow faucet according to claim 3, characterized in that: A magnetic component with a circular ring structure is installed on the waterproof ring, and the magnetic component can absorb the shielding ring.

5. The anti-backflow faucet according to claim 4, characterized in that: A sealing ring is arranged on the inner surface of the magnetic member.

6. The anti-backflow faucet according to claim 4, characterized in that: A concave mounting groove is arranged on the waterproof ring at a position corresponding to the magnetic part, and the magnetic part is embedded in the mounting groove.

7. The anti-backflow faucet according to claim 1, characterized in that: The anti-backflow mechanism also includes a mounting ring spaced apart from the channel plate, and the channel plate and the mounting ring are connected via a connecting rod.

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