Faucet with separable inner core

By designing a faucet structure with a detachable inner core, the problem of low filter replacement efficiency in existing faucets is solved, enabling convenient replacement and cleaning of the water outlet, thus improving water quality.

CN223768206UActive Publication Date: 2026-01-06YUHUAN YUNDA VALVE CO LTD
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Patent Information

Application Number
CN202520529135.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2026-01-06
Estimated Expiration
2035-03-25

AI Technical Summary

Technical Problem

The existing faucets require complete disassembly and assembly when replacing the filter cartridge, and external tools are needed, resulting in low replacement efficiency.

Method used

Design a faucet with a detachable inner core. The inner core tube is connected by a threaded connection and a limiting mechanism, which allows the insertion ring and the slider to cooperate to achieve convenient replacement of the filter core. The auxiliary mechanism adjusts the angle of the movable circular plate through the connecting ring and the push block, which facilitates the observation and cleaning of the water outlet.

Benefits of technology

It enables convenient replacement of the filter cartridge without the need for external tools, improving replacement efficiency and facilitating the cleaning of the water outlet, thus ensuring water quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of faucets, in particular to a faucet with a separable inner core, which comprises a main body, an inner core pipe is in threaded connection with the inside of the main body, a water outlet bent pipe is in threaded connection with the inside of the inner core pipe, and a water outlet head is fixedly mounted at one end, far away from the main body, of the water outlet bent pipe. A movable circular plate is movably installed at the position, close to the bottom end, in the water outlet head, a plurality of water outlet holes are formed in the bottom face of the movable circular plate in a penetrating mode, an auxiliary mechanism is arranged on the outer wall of the water outlet bent pipe, and a filter element is inserted into the inner core pipe. The whole replacement operation is more convenient and efficient, the water outlet head can be conveniently pulled out of the water outlet bent pipe for observation and cleaning, and the situation that due to the fact that the position of the water outlet head is fixed, dirt attached to the water outlet head is inconvenient to observe, cleaning is not enough and inconvenient, and the water outlet quality of the faucet is affected is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of faucet technology, specifically a faucet with a detachable inner core. Background Technology

[0002] A faucet is a common name for a water valve, used to control the flow of water. It has the effect of saving water. Faucets are updated very quickly, from the old-fashioned cast iron process to electroplated knob type, and then to stainless steel single-temperature single-control faucets, stainless steel dual-temperature dual-control faucets, and semi-automatic kitchen faucets, etc.

[0003] In the prior art, such as the foldable water filter faucet outlet pipe proposed in patent application number "CN202222663035.6", a rubber rod is installed inside the rotating block. By adjusting the tension block, the rotating block is loosened, allowing the space in the middle part to be expanded. Through the design of the installed rubber rod and the upper flexible tube, the outlet pipe can be folded and stored without damaging the outlet pipe, making it convenient for storage during transportation.

[0004] However, in the aforementioned patent application, the existing faucets filter water by setting up a filter cartridge inside. However, when the filter cartridge needs to be replaced after long-term use, it is generally necessary to disassemble the entire faucet and use external tools, which is quite troublesome and affects the replacement efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a faucet with a detachable inner core to solve the problems mentioned in the background art.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A faucet with a detachable inner core includes a main body, an inner core tube connected internally by threads, a water outlet bend connected internally by threads, a water outlet head fixedly installed at the end of the water outlet bend away from the main body, a movable circular plate movably installed near the bottom of the water outlet head, a plurality of water outlet holes being formed through the bottom surface of the movable circular plate, an auxiliary mechanism provided on the outer wall of the water outlet bend, a filter element inserted inside the inner core tube, and a limiting mechanism provided inside the inner core tube near the bottom; the limiting mechanism includes a plug ring, an annular groove, and a plurality of slots, the plug ring being movably inserted into the inner core tube near the bottom, the annular groove and the plurality of slots being formed on the inner wall of the inner core tube, and a filter screen being fixedly connected inside the plug ring.

[0008] Preferably, a plurality of sliders are inserted inside the annular groove, and one end of each slider is fixedly connected to the insert ring. Movable grooves are formed on the upper and lower surfaces of each slider, and a retaining plate is inserted inside each of the two movable grooves. A spring plate is installed between the bottom end of the retaining plate and the bottom end of the movable groove.

[0009] Preferably, the annular groove has several slots on both its upper and lower surfaces, and the slots fit into one end of the card plate.

[0010] Preferably, the auxiliary mechanism includes a first connecting ring and a second connecting ring, both of which are sleeved on the outside of the water outlet head, and the first connecting ring is fixedly connected to the movable circular plate.

[0011] Preferably, two connecting rods are inserted into the upper surface of the second connecting ring, and the bottom ends of the two connecting rods are fixedly connected to the first connecting ring. Two fixing rods are fixedly connected to the upper surface of the second connecting ring near the two connecting rods. A limiting rod is inserted inside the two fixing rods, and a supporting spring is installed between one end of the limiting rod and the inner wall of the fixing rod.

[0012] Preferably, a push block is slidably connected to the outer wall of the fixed rod, and one end of the push block is fixedly connected to the limiting rod. Two limiting holes are opened on the outer wall of the connecting rod, and the limiting holes are matched with one end of the limiting rod.

[0013] Preferably, a connecting rod is fixedly installed inside the water outlet bend near the water outlet head. A plug is inserted into the bottom of the connecting rod, and the bottom of the plug is fixedly connected to the movable circular plate. A rubber tube is fixedly connected to the upper end of the plug and inside the connecting rod. A return spring is installed between the upper end of the plug and the top of the connecting rod.

[0014] The beneficial effects of this utility model are:

[0015] 1. This utility model allows for the removal of the filter element and filter screen by rotating the insert ring, which works in conjunction with the slot and slider. This releases the position restriction on the filter element, making it easy to remove. Then, the insert ring can be repositioned using a retaining plate, spring sheet, slider, and slot. The filter element is then positioned within the inner core tube by the filter screen. After replacement, the inner core tube is reconnected to the main body by screwing it in. This process facilitates filter element replacement without the need for external tools, making the entire replacement operation more convenient and efficient.

[0016] 2. This utility model, by moving the connecting ring down, can drive the movable circular plate down. Through the provided rubber tube and reset spring, the angle of the water outlet can be freely adjusted for observation and cleaning, facilitating cleaning of the water outlet. After cleaning, the movable circular plate is reinserted into the water outlet by the spring force of the reset spring. The position between the second connecting ring and the first connecting ring is fixed by the support spring, the limiting rod, and the limiting hole, thus re-fixing the movable circular plate inside the water outlet. This operation facilitates the removal, observation, and cleaning of the water outlet, preventing the inconvenience of cleaning due to dirt adhering to it being inside the water outlet, which could affect the water quality. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a sectional view of the base in this utility model;

[0020] Figure 3 This is a schematic diagram of the inner core tube and filter screen in this utility model;

[0021] Figure 4 This is a partial structural schematic diagram of the inner core tube in this utility model;

[0022] Figure 5 This utility model Figure 4 Enlarged view of point A in the middle;

[0023] Figure 6 This is a cross-sectional view of the water outlet bend in this utility model;

[0024] Figure 7 This is a cross-sectional view of the connecting rod and the insert rod in this utility model;

[0025] Figure 8 This is a utility model Figure 7 Enlarged view of point B in the middle.

[0026] The attached figures are labeled as follows:

[0027] 1. Main body; 2. Outlet elbow; 3. Outlet head; 4. Inner core tube; 5. Filter element; 6. Insert ring; 7. Filter screen; 8. Slot; 9. Annular groove; 10. Movable circular plate; 11. Connecting rod; 12. Slider; 13. Clamping plate; 14. Spring plate; 15. Clamping groove; 16. Insert rod; 17. Connecting rod; 18. Connecting ring one; 19. Connecting ring two; 20. Fixing rod; 21. Limiting rod; 22. Push block; 23. Rubber tube. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] A faucet with a detachable inner core, such as Figures 1-6 As shown, the device includes a main body 1. An inner core tube 4 is threadedly connected inside the main body 1. A water outlet bend 2 is threadedly connected inside the inner core tube 4. A water outlet head 3 is fixedly installed at the end of the water outlet bend 2 away from the main body 1. A movable circular plate 10 is movably installed inside the water outlet head 3 near the bottom. Several water outlet holes are opened through the bottom surface of the movable circular plate 10. An auxiliary mechanism is provided on the outer wall of the water outlet bend 2. A filter element 5 is inserted inside the inner core tube 4. A limiting mechanism is provided inside the inner core tube 4 near the bottom. The limiting mechanism includes a plug ring 6, an annular groove 9, and several slots 8. The plug ring 6 is movably inserted into the inner core tube 4 near the bottom. The annular groove 9 and several slots 8 are all opened on the inner wall of the inner core tube 4. A filter screen 7 is fixedly connected inside the plug ring 6.

[0030] Several sliders 12 are inserted inside the annular groove 9, and one end of each slider 12 is fixedly connected to the insert ring 6. Movable grooves are opened on the upper and lower surfaces of the sliders 12. A retaining plate 13 is inserted inside each of the two movable grooves. A spring plate 14 is installed between the bottom end of the retaining plate 13 and the bottom end of the movable groove. Several retaining slots 15 are opened on the upper and lower surfaces of the annular groove 9, and the retaining slots 15 fit with one end of the retaining plate 13. Under the action of the spring plate 14, one end of the retaining plate 13 can be driven to be inserted into the retaining slot 15, fixing the position of the sliders 12, thereby fixing the position of the insert ring 6.

[0031] When in use, turn on the faucet, and water flows into the main body 1 and the outlet bend 2, and flows out from the outlet head 3. After the water flows into the outlet head 3, it can flow out from the various outlet holes on the movable circular plate 10. After the water flows into the main body 1, it passes through the filter screen 7 and filter element 5 set in the inner core tube 4, which can filter out impurities in the water. After long-term use, when the filter element 5 needs to be replaced, the inner core tube 4 can be unscrewed from the inside of the main body 1. Then, simply rotate the insert ring 6 to drive each slider 12 to move along the inside of the annular groove 9. The locking plate 13 moves with the slider 12. The inclined plane first moves along the inside of the locking groove 15 and gradually moves out of the locking groove 15. Restricted by the inner wall of the annular groove 9, it is squeezed and moved into the movable groove. The spring plate 14 is squeezed until each slider 12 corresponds to the bottom of each slot 8. At this time, the insert ring 6 can be pulled out of the inner core tube 4, and each annular groove 9 moves along each slot 8. The inner movement allows the insert ring 6 and filter screen 7 to be removed from the inner core tube 4. At this time, the filter element 5 can be removed from the inner core tube 4 for replacement. After replacement, the insert ring 6 can be inserted into the inner core tube 4 through the slider 12 and the annular groove 9. At this time, each slider 12 is located inside the annular groove 9. Then, the insert ring 6 is rotated to drive each slider 12 to move along the inside of the annular groove 9. During this process, the inclined surface of the clamping plate 13 moves along the inner wall of the annular groove 9 and can be gradually squeezed into the movable groove. The spring plate 14 is squeezed and contracted until the slider 12 rotates to the position between the two clamping grooves 15. Under the action of the spring plate 14, one end of the clamping plate 13 can be driven into the clamping groove 15 to fix the position of the slider 12, thereby fixing the position of the insert ring 6. With the help of the filter screen 7, the position of the filter element 5 is limited to the inner core tube 4. After replacement, the inner core tube 4 can be reconnected to the main body 1 by screwing it in.

[0032] The above operations facilitate the replacement of the detachable filter element 5 without the need for external tools, making the entire replacement process more convenient and efficient.

[0033] like Figures 6-8 As shown, the auxiliary mechanism includes a first connecting ring 18 and a second connecting ring 19. Both the first connecting ring 18 and the second connecting ring 19 are sleeved on the outside of the water outlet head 3, and the first connecting ring 18 is fixedly connected to the movable circular plate 10.

[0034] Two connecting rods 17 are inserted into the upper surface of connecting ring 2 19, and the bottom ends of the two connecting rods 17 are fixedly connected to connecting ring 1 18. Two fixing rods 20 are fixedly connected to the upper surface of connecting ring 2 19 near the two connecting rods 17. Limiting rods 21 are inserted into the two fixing rods 20. A support spring is installed between one end of the limiting rod 21 and the inner wall of the fixing rod 20. A push block 22 is slidably connected to the outer wall of the fixing rod 20, and one end of the push block 22 is fixedly connected to the limiting rod 21. Two limiting holes are opened on the outer wall of the connecting rod 17, and the limiting holes fit with one end of the limiting rod 21. Under the action of the rebound force of the support spring, one end of the limiting rod 21 can be driven to re-insert into the limiting hole, thereby fixing the position between connecting ring 2 19 and connecting ring 1 18.

[0035] A connecting rod 11 is fixedly installed inside the water outlet bend 2 near the water outlet head 3. A plug rod 16 is inserted into the bottom of the connecting rod 11, and the bottom of the plug rod 16 is fixedly connected to the movable circular plate 10. A rubber tube 23 is fixedly connected to the upper end of the plug rod 16 and inside the connecting rod 11. A return spring is installed between the upper end of the plug rod 16 and the top end inside the connecting rod 11.

[0036] Specifically, by moving the push block 22, the limiting rod 21 is moved into the fixed rod 20, causing the limiting rod 21 to move out of the limiting hole, releasing the fixation on the connecting rod 17. The support spring is compressed and contracted. Similarly, by moving the other limiting rod 21 out of the other limiting hole, the fixation between the connecting ring 19 and the connecting rod 17 can be released. At this time, the connecting ring 18 can be moved down, causing the movable circular plate 10 to move down. During the downward movement of the movable circular plate 10, the insertion rod 16 moves down with the movable circular plate 10, the reset spring is stretched, and the rubber tube 23 moves outward along the inside of the connecting rod 11, allowing the movable circular plate 10 to be moved out of the water outlet 3. Furthermore, by using the rubber tube 23 in conjunction with the reset spring, the angle of the water outlet 3 can be adjusted at will for observation and cleaning, making it convenient to clean the water outlet 3. After cleaning, the movable circular plate 10 is reinserted into the water outlet 3 by the elastic force of the reset spring, so that the connecting rod 17 passes through the connecting ring 19. At this time, the limiting rod 21 is inside the fixed rod 20. Then, the push block 22 is released, and under the action of the rebound force of the support spring, one end of the limiting rod 21 can be reinserted into the limiting hole, fixing the position between the connecting ring 19 and the connecting ring 18, thereby fixing the movable circular plate 10 back into the water outlet 3.

[0037] The above operations facilitate the pulling out of the water outlet 3 for observation and cleaning, avoiding the inconvenience of observing dirt adhering to it due to the fixed position of the water outlet 3 and the downward-facing water outlet, which would lead to untimely and inconvenient cleaning and affect the water quality of the faucet.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A separable core faucet comprising a main body (1), characterized in that, The inner core pipe (4) is threadedly connected in the main body (1), the water outlet elbow pipe (2) is threadedly connected in the inner core pipe (4), the water outlet head (3) is fixedly installed at the end, away from the main body (1), of the water outlet elbow pipe (2), the movable round plate (10) is movably installed in the water outlet head (3) near the bottom end position, a plurality of water outlet holes are formed through the bottom surface of the movable round plate (10), the auxiliary mechanism is arranged on the outer wall of the water outlet elbow pipe (2), the filter core (5) is inserted into the inner core pipe (4), and the limiting mechanism is arranged on the inner core pipe (4) near the bottom end position.

2. A separable core faucet according to claim 1, wherein, A plurality of sliding blocks (12) are inserted into the annular groove (9), one end of each of the plurality of sliding blocks (12) is fixedly connected with the insertion ring (6), movable grooves are formed on the upper and lower end surfaces of each of the plurality of sliding blocks (12), the clamping plates (13) are inserted into the two movable grooves, and spring sheets (14) are arranged between the bottom end of each clamping plate (13) and the inner bottom end of the movable groove.

3. A separable core faucet according to claim 2, wherein, A plurality of clamping grooves (15) are formed on the upper and lower end surfaces of the annular groove (9), and the clamping grooves (15) are matched with one end of the clamping plates (13).

4. The separable core faucet of claim 1, wherein, The auxiliary mechanism comprises the first connecting ring (18) and the second connecting ring (19), the first connecting ring (18) and the second connecting ring (19) are both arranged on the outer portion of the water outlet head (3), and the first connecting ring (18) is fixedly connected with the movable round plate (10).

5. A separable core faucet according to claim 4, wherein, Two link rods (17) are inserted into the upper end surface of the second connecting ring (19), the bottom ends of the two link rods (17) are fixedly connected with the first connecting ring (18), two fixed rods (20) are fixedly connected with the second connecting ring (19) on the upper end surface near the two link rods (17), limiting rods (21) are inserted into the two fixed rods (20), and supporting springs are arranged between one end of each limiting rod (21) and the inner wall of the fixed rod (20).

6. A separable core faucet according to claim 5, wherein, A push block (22) is slidably connected to the outer wall of the fixed rod (20), one end of the push block (22) is fixedly connected with the limiting rod (21), two limiting holes are formed in the outer wall of the link rod (17), and the limiting holes are matched with one end of the limiting rod (21).

7. A separable core faucet according to claim 1, wherein, A connecting rod (11) is fixedly installed at the end, near the water outlet head (3), of the water outlet elbow pipe (2), an insertion rod (16) is inserted into the inner bottom end of the connecting rod (11), the bottom end of the insertion rod (16) is fixedly connected with the movable round plate (10), a rubber tube (23) is fixedly connected with the insertion rod (16) on the upper end and in the inner portion of the connecting rod (11), and a reset spring is arranged between the upper end of the insertion rod (16) and the inner top end of the connecting rod (11).

Citation Information

Patent Citations

  • Foldable water outlet pipe of water filtering faucet

    CN218236302U