A pull-out faucet

Abstract

The utility model provides a kind of pull faucet, including faucet body, pull pipe and control assembly, the valve body of body is equipped with pull water channel, the cavity of containing sealing element and the pressure relief cavity being communicated with cavity, sealing element rear end is equipped with pre-tightening elastic element, control assembly is non-electric drive mechanism, including piston piece and driving piece.Pull pipe is extracted, piston piece is far from pressure release port, sealing element rear end pressure release, water flow drives sealing element to make water channel conductive;Pull pipe resets, piston piece closes pressure release port, sealing element rear end forms water pressure and cooperates elastic element pre-tightening force, and blocks water channel.The faucet does not need electronic component, reduces manufacturing cost and energy consumption, and structure is stable, convenient to operate, easy to maintain.

Description

Technical Field

[0001] This utility model relates to the technical field of kitchen and bathroom faucet equipment, and more specifically, to a pull-out faucet. Background Technology

[0002] Pull-out faucets are widely used because their showerheads can be pulled out to different positions to meet various water needs, offering convenience. A typical pull-out faucet's showerhead is connected to the water pipe via a pull-out hose, allowing it to be pulled out and mounted on the faucet body. A counterweight or counterweight assembly is usually installed and fixed to this pull-out hose, located below the countertop. Pull-out faucets typically use a handle to operate the valve core to control water flow. When a flush is needed, the pull-out hose is pulled out, opening the valve core to release water. When the user releases the pulled-out showerhead, it automatically returns to its original position due to gravity provided by the counterweight or counterweight assembly.

[0003] To make water flow more convenient, some faucets now feature pull-out control. These faucets utilize a reed switch to control the water flow when the shower head is pulled out, allowing water to flow directly without the need for a handle. A typical reed switch stops the sensor when water is released by pulling out the hose, and the switch controls the solenoid valve to open and release water. When the hose is pulled back to its original position, the reed switch closes the solenoid valve to stop the water flow, and the sensor resumes operation. Examples include the intelligent control faucet disclosed in Chinese patent CN201420331760.6.

[0004] However, the aforementioned pull-out faucets require various sensors, solenoid valves, and other electronic components, resulting in higher manufacturing costs. Furthermore, they require electricity, consuming power and increasing operating costs for consumers.

[0005] In view of this, the applicant hereby submits this application after studying the existing technology. Utility Model Content

[0006] This utility model provides a pull-out faucet, which aims to improve at least one of the above-mentioned technical problems.

[0007] To solve the above-mentioned technical problems, this utility model provides a pull-out faucet, including a faucet body, a pull-out tube, and a control component. The pull-out tube is used to connect the water outlet end of the body and the water outlet component. When the water outlet component is coupled or separated from the body, it can drive the pull-out tube to reciprocate through the inside of the faucet body. The control component is located outside the valve body of the body and is constructed as a non-electrically driven structure. When the pull-out tube is driven by the water outlet component to reciprocate, the water flow state of the body can be adjusted by the non-electrically driven control component.

[0008] As a further optimization, the valve body is provided with a pull-out water channel for connecting the inlet and outlet ends, and also with a cavity for accommodating a sealing element; the front end of the sealing element is adapted to the sealing end of the pull-out water channel, and is used to open and close the pull-out water channel by abutting or separating from the sealing end; the rear end of the sealing element is provided with an elastic element to apply a pre-tightening elastic force toward the sealing end to the sealing element; the valve body is also provided with a pressure relief chamber communicating with the rear cavity of the sealing element; the control component is used to control the opening or closing of the pressure relief port of the pressure relief chamber. When the pressure relief port is closed, water pressure is formed in the rear cavity of the seal, and together with the pre-tightening force of the elastic element, the front end of the seal is tightly pressed against the sealing end, blocking the water flow in the pull-out water channel, so that the pull-out water channel is in a closed state. When the pressure relief port is opened, the pressure in the rear cavity of the seal is released through the pressure relief port. The water flow pressure at the front end of the seal is greater than the combined force of the pressure at the rear end of the seal and the pre-tightening force of the elastic element, which pushes the seal to move away from the sealing end, so that the seal is separated from the sealing end, and the water flow at the inlet end and outlet end is connected, so that the pull-out water flow channel is in a connected state.

[0009] As a further optimization, a through hole is provided on the seal, which is connected to the water inlet of the pull-out water channel, so that when the pressure relief port is closed, water can enter the rear cavity of the seal to form water pressure.

[0010] As a further optimization, the control component includes a piston and a drive component. The piston includes a piston head, a first magnetic block, and a first return spring. The first magnetic block is connected between the piston head and the first return spring. The first return spring is used to abut against the side wall of the pressure relief chamber away from the pressure relief port, so that the piston head can abut against the pressure relief port and close the pressure relief port.

[0011] As a further optimization, the driving component is equipped with a second magnetic block; the pull tube is reciprocally inserted through the body, and one end of the pull tube is connected to the water outlet end of the valve body, while the other end is used for water outlet assembly; the driving component is configured to be movably mounted on the body, and when the pull tube is pulled out, it can move to a position where the second magnetic block is close to the first magnetic block, so that the first magnetic block can compress the first return spring and drive the piston head away from the pressure relief port.

[0012] As a further optimization, the body is provided with an inner cavity for accommodating the driving member, and a vertically arranged slide rail is constructed on one side wall of the inner cavity, and the driving member is slidably connected to the slide rail.

[0013] As a further optimization, the driving component tends to move upward along the slide rail; an upper limit part is provided on the inner cavity sidewall, and when the driving component abuts against the upper limit part, the second magnetic block and the first magnetic block are coaxial.

[0014] As a further optimization, a limit block is provided on the driving component; a limit member is provided on the pull tube. When the pull tube is reset, the limit member can abut against the upper end of the limit block to drive the driving component to move downward so that the second magnetic block is away from the first magnetic block.

[0015] As a further optimization, the main body also includes a base plate and a fixing seat, with the valve body having an open design on the side near the control component; the base plate is mounted between the valve body and the fixing seat. The pull-out faucet provided in this application has the following beneficial effects: 1. It eliminates the need for electronic components such as induction probes, reed switches, and solenoid valves found in existing technologies. This reduces component procurement and assembly costs in the faucet production process, thereby lowering manufacturing costs. Furthermore, it eliminates the need for an external power supply, completely avoiding power consumption and solving the problem of "power-intensive use," significantly reducing long-term usage costs for consumers.

[0016] 2. Water flow control is achieved through a mechanical combination of magnets, springs, and seals. There is no risk of damage to electronic components or failure due to humid environments. The structure is simple and wear-resistant, with a low failure rate, which can effectively extend the service life of the faucet.

[0017] 3. The valve body has an open design on one side, which is sealed by the base plate and connected to the mounting base. This allows the control components to be placed outside the valve body, avoiding an excessively large and bulky valve body. In case of failure, the control components can be quickly repaired or replaced by removing the base plate. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the faucet body of a pull-out faucet according to this utility model; Figure 2 This is a partial structural diagram of the faucet body of a pull-out faucet according to the present invention; Figure 3 This is a schematic diagram of the valve body in one embodiment of the present invention; Figure 4 This is a schematic cross-sectional view of a pull-out faucet in its unpulled state according to this utility model. Figure 5 This is a partial structural diagram of a pull-out faucet in the open state of the pull-out water flow channel. Figure 6 This is a schematic diagram of the structure of the present invention when the pull-out tube is not pulled out; Figure 7 This is a schematic diagram of the structure of the present invention when the pull-out tube is in the pulled-out state; Figure 8 This is a partial structural diagram of the valve body of this utility model; The diagram shows the following components: 1. Valve body; 2. Fixed base; 3. Pull-out tube; 4. Inlet; 5. Outlet; 6. Pull-out water channel; 7. Base plate; 8. Cavity; 9. Pressure relief chamber; 10. Pressure relief port; 11. Seal; 12. Sealing end; 13. Abutment spring; 14. Upper flow channel; 15. Lower flow channel; 16. Connecting hole; 17. Piston; 18. Drive component; 19. Piston head; 20. First magnetic block; 21. First return spring; 22. Inner cavity; 23. Slide rail; 24. Second magnetic block; 25. Upper limit part; 26. Lower limit part; 27. First abutment part; 28. Second abutment part; 29. ​​Second return spring; 30. Limiting component; 31. Limiting block; 32. Water outlet assembly. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Depend on Figures 1 to 8As shown, this utility model embodiment provides a pull-out faucet, including a faucet body, a water outlet component 32, a pull-out pipe 3 connecting the water outlet end of the body and the water outlet component 32, and a control component. The body includes a valve body 1, a fixing base 2, and a base plate 7 located below the mounting surface, and a part located above the mounting surface for user operation. The upper part is prior art and will not be described in detail here. This embodiment mainly describes the main body located below the mounting surface. Preferably, the valve body 1 is provided with a water outlet end 5 and at least one water inlet end 4. In this embodiment, two water inlets 4 are provided: a handle control water inlet and a pull-out control water inlet. A handle water flow channel is formed between the handle control water inlet and the water outlet end 5, which is controlled by the handle and will not be described in detail here. The pull-out control water inlet and the water outlet end 5 form a pull-out water flow channel 6.

[0022] Furthermore, the pull-out tube 3 is reciprocally inserted into the fixed base 2, and one end of the pull-out tube 3 is connected to the water outlet end 5 of the valve body 1, while the other end is used for water outlet of the water outlet component 32. In one embodiment, the water outlet component 32 can be a shower head, and a counterweight (not shown in the figure) is provided on the lower side of the pull-out tube 3 so that the pull-out tube 3 has a downward tendency, thereby allowing the water outlet component 32 to be coupled to the upper end of the body. This is prior art and will not be described in detail here.

[0023] The valve body 1 features an open design, with an internal water flow channel. The open end is sealed by a sealing ring that mates with the base plate. The other side of the base plate 7 is connected to a mounting bracket to form the faucet body. The control components are primarily housed on the base plate. This design allows for quick replacement of the components and control assembly located at the open end of the valve body 1 by removing the mounting bracket 2 and the base plate 7 when the valve body malfunctions. Conversely, placing the entire control assembly inside the valve body 1 would complicate the valve structure, increase its size, and make it bulky and difficult to maneuver.

[0024] Furthermore, a cavity 8 and a pressure relief cavity 9 are provided on the side of the valve body 1 near the open end. The side of the cavity 8 away from the pull-out water channel 6 is connected to the pressure relief cavity 9, and the pressure relief port 10 of the pressure relief cavity 9 is connected to the water flow channel. Preferably, a sealing element 11 and an elastic element are provided in the cavity 8. The elastic element is a retaining spring 13. One end of the retaining spring 13 abuts against the bottom plate 7, and the other end abuts against the rear side of the sealing element 11, applying a pre-tightening force to it, so that the sealing element 11 moves toward the sealing end 12 of the pull-out water channel 6 and abuts against it to seal the pull-out water channel 6. The cavity 8 and the sealing element 11 have a circular cross-section. The sealing element 11 is suitable for axial movement in the cavity 8. When the sealing element 11 abuts against the sealing end 12, it can divide the pull-out water channel 6 into two parts: an upper flow channel 14 connected to the inlet end 4 and a lower flow channel 15 connected to the outlet end 5. There are various sealing structures, which will not be described in detail here.

[0025] Furthermore, a through hole 16 is provided on the seal 11, which communicates with the upper flow channel 14. Water can enter the rear cavity 8 of the seal 11 through the through hole 16. If the pressure relief port 10 is closed, water pressure can be formed in the rear cavity 8 of the seal 11. At this time, the pressure on both sides of the seal 11 is balanced, and the seal 11 can be tightly sealed with the sealing end 12 by the abutment spring 13, blocking the water flow in the pull-out water channel 6. The pull-out water channel 6 is in a sealed state. When the pressure relief port 10 is opened, water in the rear cavity 8 of the seal 11 can flow out from the pressure relief port 10. The pressure on both sides is unbalanced, and the water pressure at the front end of the seal 11 can push the seal 11 to move away from the sealing end 12, causing the seal 11 to separate from the sealing end 12. Then, the water flow at the inlet and outlet ends is connected, and the pull-out water channel 6 is connected.

[0026] Preferably, the control component is a non-electrically driven structure, which includes a piston 17 and a drive component 18. The piston 17 is disposed in the pressure relief chamber 9 and includes a piston head 19, a first magnetic block 20 and a first return spring 21. The first magnetic block 20 is connected between the piston head 19 and the first return spring 21. The first return spring 21 is used to abut against the bottom plate 7 on the side of the pressure relief chamber 9 away from the pressure relief port 10, so that the piston head 19 can abut against the pressure relief port 10, close the pressure relief port 10, and the water flow channel 6 is in a sealed state.

[0027] Furthermore, an inner cavity 22 for accommodating the drive member 18 is provided in the fixing seat 2 on the other side of the base plate 7. At the same time, a vertical slide rail 23 is provided on one side of the inner cavity 22 on the base plate 7, and the drive member 18 is slidably mounted on the slide rail 23. A second magnetic block 24 is arranged at the lower part of the drive member 18. When the drive member 18 moves the second magnetic block 24 to a state coaxial with the first magnetic block 20, the attraction force of the second magnetic block 24 on the first magnetic block 20 is greater than the force of the first return spring 21, thereby driving the piston head 19 away from the pressure relief port 10 and opening it to release pressure.

[0028] Specifically, the base plate 7 is provided with an upper limit part 25. When the driving member 18 abuts against the upper limit part 25, the second magnetic block 24 and the first magnetic block 20 are coaxial, that is, the water channel 6 is in a conductive state. The bottom of the inner cavity 22 is the lower limit part 26. When the driving member 18 abuts against the lower limit part 26, the second magnetic block 24 moves away from the first magnetic block 20, the first return spring 21 is reset, the piston head 19 blocks the pressure relief port 10, and the sealing member 11 abuts against the sealing end 12, that is, the water channel 6 is in a sealed state.

[0029] The base plate 7 has a first abutment 27 protruding from the lower part on one side of the inner cavity 22; the drive member 18 has a second abutment 28 protruding from the upper part. A second return spring 29 is provided between the first abutment 27 and the second abutment 28. The drive member 18 has an upward tendency under the elastic force of the second return spring 29 because the second return spring 29 abuts against the second abutment 28.

[0030] Furthermore, a limiting element 30 is radially protruding from the pull-out tube 3, and a ring-shaped limiting block 31 is provided on the drive element 18. The limiting block 31 is sleeved on the pull-out tube 3 and located below the limiting element 30. When the shower head is reset and coupled with the main body, the pull-out tube 3 resets and, when moving downwards, can abut against the limiting block 31, which can drive the drive element 18 to compress the second reset spring 29 and move downwards, thereby causing the second magnet 24 to move away from the first magnet 20. When the shower head is pulled out and separated from the faucet, the pull-out tube 3 is pulled out at the same time, the limiting element 30 separates from the limiting block 31, and the drive element 18 moves upwards under the push of the second reset spring 29, thereby allowing the second magnet 24 to approach the first magnet 20, thus opening the pressure relief port 10, and finally separating the sealing element 11 from the sealing end 12 to complete the opening of the pull-out water channel 6, thereby adjusting the water flow state of the faucet body. Therefore, water flow control is achieved by using a mechanical combination of magnets, springs, and seals as control components. There is no risk of damage to electronic components or failure due to humid environments. The structure is simple and wear-resistant, with a low failure rate, which can effectively extend the service life of the faucet.

[0031] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pull-out faucet, comprising a faucet body, a pull-out tube, and a control component, wherein the pull-out tube connects the water outlet end of the faucet body to a water outlet component; and when the water outlet component is coupled or separated from the faucet body, the pull-out tube is capable of reciprocating through the interior of the faucet body, characterized in that, The control component is located outside the valve body of the main body and is constructed as a non-electrically driven structure. When the pull tube is driven by the water outlet component to reciprocate, the water flow status of the main body can be adjusted by the non-electrically driven control component.

2. A pull-out faucet according to claim 1, characterized in that... The valve body is provided with a pull-out water channel for connecting the inlet and outlet ends, and also with a cavity for accommodating a sealing element; the front end of the sealing element is adapted to the sealing end of the pull-out water channel, and is used to open and close the pull-out water channel by abutting or separating from the sealing end; the rear end of the sealing element is provided with an elastic element to apply a pre-tightening elastic force toward the sealing end to the sealing element; the valve body is also provided with a pressure relief chamber communicating with the rear cavity of the sealing element; the control component is used to control the opening or closing of the pressure relief port of the pressure relief chamber. When the pressure relief port is closed, water pressure is formed in the rear cavity of the seal, and together with the pre-tightening force of the elastic element, the front end of the seal is tightly pressed against the sealing end, blocking the water flow in the pull-out water channel, so that the pull-out water channel is in a closed state. When the pressure relief port is opened, the pressure in the rear cavity of the seal is released through the pressure relief port. The water flow pressure at the front end of the seal is greater than the combined force of the pressure at the rear end of the seal and the pre-tightening force of the elastic element, which pushes the seal to move away from the sealing end, causing the seal to separate from the sealing end. The water flow at the inlet end and the outlet end is connected, so that the pull-out water channel is in a connected state.

3. A pull-out faucet according to claim 2, characterized in that... The sealing element has a through hole that connects to the inlet end of the pull-out water channel, so that when the pressure relief port is closed, water can enter the rear cavity of the sealing element to form water pressure.

4. A pull-out faucet according to claim 2, characterized in that... The control component includes a piston and a drive component. The piston includes a piston head, a first magnetic block, and a first return spring. The first magnetic block is connected between the piston head and the first return spring. The first return spring is used to abut against the side wall of the pressure relief chamber away from the pressure relief port, so that the piston head can abut against the pressure relief port and close the pressure relief port.

5. A pull-out faucet according to claim 4, characterized in that... The driving component is equipped with a second magnetic block; the pull tube is reciprocally inserted through the body, and one end of the pull tube is connected to the water outlet end of the valve body, while the other end is used for water outlet assembly; the driving component is configured to be movably mounted on the body, and when the pull tube is pulled out, it can move to a position where the second magnetic block is close to the first magnetic block, so that the first magnetic block can compress the first return spring and drive the piston head away from the pressure relief port.

6. A pull-out faucet according to claim 5, characterized in that... The body has an inner cavity for accommodating the driving member, and a vertically arranged slide rail is constructed on one side wall of the inner cavity, and the driving member is slidably connected to the slide rail.

7. A pull-out faucet according to claim 6, characterized in that... The driving component tends to move upward along the slide rail; an upper limit part is provided on the inner cavity sidewall, and when the driving component abuts against the upper limit part, the second magnetic block and the first magnetic block are coaxial.

8. A pull-out faucet according to claim 6, characterized in that... The driving component is provided with a limit block; the pull tube is provided with a limit member. When the pull tube is reset, the limit member can abut against the upper end of the limit block to drive the driving component to move downward so that the second magnetic block is away from the first magnetic block.

9. A pull-out faucet according to claim 6, characterized in that... The main body also includes a base plate and a fixing seat, and the valve body has an open design on the side near the control component; the base plate is installed between the valve body and the fixing seat.

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