A faucet

Abstract

This utility model discloses a faucet, including a column and a valve core mounting cavity located at its top for installing hot and cold water valve cores. The top of the valve stem of the hot and cold water valve core is lower than the height of the valve core mounting cavity opening. A central frame is provided above the hot and cold water valve core within the valve core mounting cavity, and a pair of supports are provided at the upper end of the central frame. The faucet also includes a handle, which has a fixed seat located within the valve core mounting cavity. A pair of downwardly extending levers, spaced apart along the axial direction of the valve stem's swing axis, are provided on the lower surface of the fixed seat. The upper end of each lever is hinged to the upper end of its respective support to control the pitch adjustment of the handle. The lower end of each lever has an upward-facing groove. The faucet also includes an adapter sleeve fitted onto the top of the valve stem, with pins on both sides parallel to the valve stem's swing axis and adapted to the groove. This utility model features an embedded design for the handle fixing seat, ensuring that interference with the top of the column is avoided when controlling the valve stem's movement.

Description

Technical Field

[0001] This utility model relates to the field of bathroom products, specifically to a faucet. Background Technology

[0002] In existing faucets, the hot and cold water valve cores are installed at the top of the column. Because the valve stem of the hot and cold water valve core is hinged and swings within the valve core, in order to avoid interference between the handle mounted on the valve stem and the column, the hot and cold water valve core is often installed at a high position to ensure that the valve stem can extend upwards and be fixedly connected to the handle. This results in a large swing gap between the handle and the top of the column, which needs to be covered by a decorative cover to conceal the unsightly gap. Consequently, the transition between the existing horizontal faucet handle and the column is poor.

[0003] For example, Chinese patent CN202421849949.4 discloses a faucet, which includes a cylindrical body formed by cutting a tubular profile. The faucet is characterized by: a water outlet arm extending radially from the upper end of the cylindrical body, the water outlet arm having a water outlet nozzle; a base plate welded to the inner wall of the cylindrical body below the water outlet arm, the base plate having a water inlet hole, and a water inlet pipe welded to the base plate connecting to the water inlet hole and extending towards the bottom of the cylindrical body; a water outlet cavity formed between the upper part of the base plate and the inner cavity of the water outlet arm; an installation cylinder extending downward into the water outlet cavity corresponding to the upper surface of the water outlet arm at the upper end of the cylindrical body; and a valve core passing through the installation cylinder, with its bottom water inlet sealing against the water inlet hole; the water outlet of the valve core being spaced apart from the upper surface of the base plate or located on the side wall of the valve core to communicate with the water outlet cavity; and a first sealing ring between the outer wall of the valve core and the inner wall of the installation cylinder.

[0004] As can be seen from the instruction manual and its accompanying drawings, the handle located at the top of the cylinder (i.e., the column) is completely exposed. In order to allow the valve stem to swing, there is a large gap between the handle's fixing seat and the cylinder (i.e., the column), and a cover is needed to cover it up. This structure greatly restricts the overall shape of the faucet. Utility Model Content

[0005] Based on the above problems, the purpose of this utility model is to provide a faucet that avoids interference with the top of the column when controlling the valve stem by embedding the handle fixing seat.

[0006] To address the above problems, the following technical solution is provided: A faucet includes a column, the top of which has a downward-opening valve core mounting cavity, within which a hot and cold water valve core is installed. A water outlet support arm extending outwards and having a water outlet is located on the side wall of the top of the column. Below the column are a cold water interface and a hot water interface communicating with the lower end of the hot and cold water valve core. The mixing outlet of the hot and cold water valve core is connected to the water outlet via the water outlet support arm. The top height of the valve stem of the hot and cold water valve core is lower than the height of the valve core mounting cavity opening. A central frame located above the hot and cold water valve core and rotatable relative to the valve core mounting cavity is provided within the valve core mounting cavity. The upper end of the central frame is fixed with… A pair of brackets spaced apart along the axial direction of the valve stem swing axis; a handle is also included, the handle being fixed to a fixed seat located within the valve core mounting cavity, the lower surface of the fixed seat having a pair of downwardly extending paddles spaced apart along the axial direction of the valve stem swing axis, the upper end of each paddle being hinged to the upper end of each bracket to control the pitch adjustment of the handle, the lower end of each paddle having an upwardly opening paddle groove; an adapter sleeve fitted onto the top of the valve stem, the adapter sleeve having paddle pins on both sides parallel to the valve stem swing axis, the paddle pins and paddle grooves being adapted to allow the handle to paddle the valve stem to control the opening and closing of the water circuit during pitch adjustment, and to drive the middle frame and valve stem to rotate to achieve temperature adjustment when the handle is rotated.

[0007] The present invention is further configured such that the middle frame is annular, and a first outer groove is provided in the middle section of the outer side wall in the axial direction, and a wear-resistant ring adapted to the inner wall of the valve core mounting cavity is provided in the first outer groove.

[0008] The present invention is further configured such that the inner and outer walls of the wear-resistant ring are provided with a plurality of outwardly protruding wear-resistant blocks evenly distributed along its circumferential direction; or, while providing outwardly protruding wear-resistant blocks, an expansion opening is provided in the circumferential direction of the wear-resistant ring.

[0009] The present invention is further provided that the middle frame is also provided with a second outer groove located on both sides of the first outer groove, and the second outer groove is provided with an isolation sealing ring that is adapted to seal the inner wall of the valve core mounting cavity.

[0010] The present invention is further configured such that the upper end of the bracket is provided with a first pin hole; the upper end of the lever is provided with a second pin hole, and the first pin hole and the second pin hole are hinged together by a pin; the height of the second pin hole is higher than the lever groove, and the height of the lever pin is lower than the second pin hole.

[0011] The present invention is further configured such that the two levers are located on the sides of the two supports facing each other; the adapter sleeve is located between adjacent levers.

[0012] The present invention is further configured such that the adapter sleeve has two sides of the pin with an upwardly extending anti-disengagement baffle at its upper end, and the anti-disengagement baffle abuts against the head of the pin to restrict the pin from disengaging.

[0013] The present invention is further configured such that the outer wall of the fixed seat is spherical; the valve core mounting cavity is provided with an anti-disengagement sleeve located above the middle frame, the upper inner wall of the anti-disengagement sleeve forms a constriction that fits the spherical surface, and the center of the spherical surface falls on the axis of the pitch adjustment shaft of the handle.

[0014] The present invention is further configured such that the inner wall of the valve core mounting cavity is provided with a first inner groove, the lower end of the anti-detachment sleeve is provided with an anti-detachment claw adapted to the first inner groove, and the lower end of the anti-detachment claw abuts against the upper end of the middle frame.

[0015] The present invention is further configured such that the outer wall of the anti-detachment sleeve is provided with a third outer groove, and the third outer groove is provided with a first sealing ring that is adapted to seal the inner wall of the valve core mounting cavity; the inner wall of the anti-detachment sleeve is provided with a second inner groove, and the second inner groove is provided with a second sealing ring that is adapted to seal the spherical surface of the outer wall of the fixing seat.

[0016] The beneficial effects of this utility model are:

[0017] 1. By placing the handle's mounting base inside the valve core mounting cavity, the height of the handle's swing axis is reduced, effectively minimizing or eliminating gaps and improving overall aesthetics. This allows the faucet's design to break free from the constraints of conventional structural interference. If the mounting base were still directly connected to the valve stem of the hot and cold water valve core after being built in, its swing axis would be too low (located within the hot and cold water valve core), increasing the swing amplitude of the mounting base and causing interference between the mounting base and the valve core mounting cavity. Therefore, a central support frame is used, with the frame and bracket serving as intermediate supports to provide a hinge for the mounting base (handle tilt). The water temperature is adjusted by swinging the handle (which controls the water flow by rotating the handle in conjunction with the rotation of the valve core mounting cavity). This ensures that the swing axis of the fixed seat is as close as possible to the top of the column. The adapter sleeve at the top of the valve stem and the lever are used for bridging and driving, avoiding interference. When the hot and cold water valve cores are closed, the connection between the handle and the fixed seat is flush with the top of the column. At the same time, the fixed seat directly acts as a cover to shield the valve core mounting cavity opening, ensuring that the upper surface of the fixed seat is flush with the valve core mounting cavity opening. When the handle is swung open, only a slight tilt (approximately 10 to 15 degrees) occurs.

[0018] 2. The wear ring is preferably made of polytetrafluoroethylene (PTFE), which can reduce friction between the middle frame and the inner wall of the valve core mounting cavity by utilizing its self-lubricating properties; the wear block is made of multiple pieces, which can be used to accommodate debris generated by friction, or to accommodate grease / damping grease; the expansion port makes it easy to open the wear ring and fit it into the first outer groove; when adding grease / damping grease to the wear block, the wear ring area can be sealed by the isolation sealing ring to prevent moisture from entering and causing the grease / damping grease to deteriorate;

[0019] 3. The pins are inserted from the sides of the two brackets facing each other. To prevent the pins from coming out, an anti-loosening baffle is installed at the upper end of the adapter sleeve, which can be used to prevent the pins from coming out after installation;

[0020] 4. The spherical structure allows for a closer fit with the inner wall of the anti-slip sleeve when the handle drives the fixed seat to swing, and the closed end effectively prevents the fixed seat from coming off.

[0021] 5. The anti-slip claw is adapted to the first inner groove to fix the anti-slip sleeve and prevent the middle frame from coming off during upward movement; the anti-slip claw is an elastic element, which achieves fixed attachment to the first inner groove through elasticity;

[0022] 6. The first and second sealing rings prevent external moisture from entering the valve core mounting cavity, providing secondary protection for the wear ring and the hot and cold water valve core. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0024] Figure 2 This is a schematic diagram of the first full-section three-dimensional structure of the column of this utility model.

[0025] Figure 3 This is a three-dimensional structural diagram of the handle of this utility model in the open state.

[0026] Figure 4 This is a three-dimensional structural diagram of the handle of this utility model in the closed state.

[0027] Figure 5 This is a schematic diagram of the first exploded three-dimensional structure of this utility model.

[0028] Figure 6 This is a schematic diagram of the second explosive three-dimensional structure of this utility model.

[0029] Figure 7 This is a schematic diagram of the second full-section three-dimensional structure of the column of this utility model.

[0030] Figure 8 This is a schematic diagram of the third full-section three-dimensional structure of the column of this utility model.

[0031] Figure 9 This utility model Figure 3 A magnified three-dimensional structural diagram of part A.

[0032] Figure 10 This utility model Figure 4 A magnified three-dimensional structural diagram of part B.

[0033] Figure 11 This is a full-section three-dimensional structural diagram of the adapter sleeve of this utility model.

[0034] The labels in the diagram mean: 10-Column; 11-Valve core mounting cavity; 111-First inner groove; 12-Outlet support arm; 121-Outlet; 13-Cold water interface; 14-Hot water interface; 20-Cold and hot water valve core; 21-Mixed water outlet; 22-Valve stem; 30-Middle frame; 31-Bracket; 311-First pin hole; 32-First outer groove; 33-Second outer groove; 34-Isolation sealing ring; 40-Handle; 41 -Fixed base; 411-Spherical surface; 42-Pulley bracket; 421-Pulley groove; 422-Second pin hole; 50-Adapter sleeve; 51-Pulley pin; 52-Anti-detachment baffle; 60-Wear-resistant ring; 61-Wear-resistant block; 62-Expansion port; 70-Pin; 71-Pin head; 80-Anti-detachment sleeve; 81-Constriction; 82-Anti-detachment claw; 83-Third outer groove; 84-First sealing ring; 85-Second inner groove; 86-Second sealing ring. Detailed Implementation

[0035] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0036] refer to Figures 1 to 11 ,like Figures 1 to 11 The faucet shown includes a column 10, with a downward-opening valve core mounting cavity 11 at the top of the column 10. A hot and cold water valve core 20 is housed within the valve core mounting cavity 11. A water outlet support arm 12, extending outward and having a water outlet 121, is located on the side wall at the top of the column 10. A cold water inlet 13 and a hot water inlet 14, communicating with the lower end of the hot and cold water valve core 20, are located below the column 10. The mixing outlet 21 of the hot and cold water valve core 20 is connected to the water outlet 121 via the water outlet support arm 12. The top height of the valve stem 22 of the hot and cold water valve core 20 is lower than the height of the opening of the valve core mounting cavity 11. A central frame 30, located above the hot and cold water valve core 20 and rotatable relative to the valve core mounting cavity 11, is provided within the valve core mounting cavity 11. A pair of valve stems 22, which swing along the valve stem, are fixed to the upper end of the central frame 30. The system includes brackets 31 spaced apart along the axial direction of the axis; it also includes a handle 40, which is fixed to a fixed seat 41 located in the valve core mounting cavity 11. The lower surface of the fixed seat 41 is provided with a pair of downwardly extending paddles 42 spaced apart along the axial direction of the swing axis of the valve stem 22. The upper end of each paddle 42 is hinged to the upper end of each bracket 31 to control the pitch adjustment of the handle 40. The lower end of each paddle 42 is provided with an upwardly opening groove 421; it also includes an adapter sleeve 50 fitted onto the top of the valve stem 22. The adapter sleeve 50 is provided with pins 51 on both sides parallel to the swing axis of the valve stem 22. The pins 51 are adapted to the grooves 421 so that the handle 40 can paddle the valve stem 22 to control the opening and closing of the water circuit when the handle 40 is adjusted in pitch, and drive the middle frame 30 and the valve stem 22 to rotate when the handle 40 is rotated to achieve temperature adjustment.

[0037] In the above structure, by placing the fixing seat 41 of the handle 40 inside the valve core mounting cavity 11, the height of the swing axis of the handle 40 is reduced, effectively reducing and eliminating the gap, thereby improving the overall aesthetics and allowing the faucet's shape design to break free from the constraints of conventional structural interference. Since if the fixing seat 41 were still directly connected to the valve stem 22 of the hot and cold water valve core 20 after being built in, its swing axis would be too low (the swing axis height is located inside the hot and cold water valve core 20), thus increasing the swing amplitude of the fixing seat 41 and causing interference between the fixing seat 41 and the valve core mounting cavity 11. Therefore, by setting a middle frame 30, the middle frame 30 and the bracket 31 serve as intermediate supports to provide a hinge for the fixing seat 41 (handle 40). The pitch and swing control switch for water supply and the rotation control of the handle 40 (which controls the water temperature adjustment through the rotation of the central frame 30 and the valve core mounting cavity 11) make the swing axis of the fixed seat 41 as close as possible to the upper end of the column 10. Then, the adapter sleeve 50 located at the top of the valve stem 22 is used to bridge and drive the lever 42, avoiding interference. This ensures that when the hot and cold water valve core 20 is closed, the connection between the handle 40 and the fixed seat 41 is level with the top of the column 10. At the same time, the fixed seat 41 is used directly as a cover to block the opening of the valve core mounting cavity 11, so that the upper surface of the fixed seat 41 is level with the opening of the valve core mounting cavity 11, and only a slight tilt (about 10 to 15 degrees) occurs after the handle 40 swings to open.

[0038] In this embodiment, the middle frame 30 is annular, and a first outer groove 32 is provided in the middle section of its outer side wall in the axial direction. A wear-resistant ring 60 adapted to the inner wall of the valve core mounting cavity 11 is provided in the first outer groove 32.

[0039] In the above structure, the wear-resistant ring 60 is preferably made of polytetrafluoroethylene, which can reduce the friction between the middle frame 30 and the inner wall of the valve core mounting cavity 11 by utilizing its self-lubricating properties.

[0040] In this embodiment, the wear-resistant ring 60 has several outwardly protruding wear-resistant blocks 61 evenly distributed along its circumferential direction on both its inner and outer walls; or, while providing outwardly protruding wear-resistant blocks 61, the wear-resistant ring 60 has an expansion opening 62 in its circumferential direction.

[0041] In the above structure, there are multiple wear-resistant blocks 61, which can be used to accommodate debris generated by friction, or to accommodate grease / damping grease; the expansion port 62 facilitates the opening of the wear-resistant ring 60 and fitting it into the first outer groove 32.

[0042] In this embodiment, the middle frame 30 is also provided with a second outer groove 33 located on both sides of the first outer groove 32, and the second outer groove 33 is provided with an isolation sealing ring 34 that is adapted to seal the inner wall of the valve core mounting cavity 11.

[0043] In the above structure, when adding grease / damping grease to the wear-resistant block 61, the area of ​​the wear-resistant ring 60 can be sealed by the isolation sealing ring 34 to prevent moisture from entering and causing the grease / damping grease to deteriorate.

[0044] In this embodiment, the upper end of the bracket 31 is provided with a first pin hole 311; the upper end of the lever 42 is provided with a second pin hole 422, and the first pin hole 311 and the second pin hole 422 are hinged together by a pin 70; the height of the second pin hole 422 is higher than that of the lever groove 421, and the height of the lever pin 51 is lower than that of the second pin hole 422.

[0045] In the above structure, the lever arm length is shortened by the height difference between the second pin hole 422, the groove 421, and the pin 51, thereby achieving the drive of the adapter sleeve 50.

[0046] In this embodiment, the two levers 42 are located on the side of the two supports 31 facing each other; the adapter sleeve 50 is located between adjacent levers 42.

[0047] In the above structure, the two supports 31 can also be arranged so that the two levers 42 are located on the side facing each other; the adapter sleeve 50 is located between the adjacent supports 31.

[0048] In this embodiment, the adapter sleeve 50 has two sides of the pin 51 and an upwardly extending anti-detachment baffle 52 at its upper end. The anti-detachment baffle 52 abuts against the head 71 of the pin 70 to restrict the pin 70 from coming out.

[0049] In the above structure, the pin 70 is inserted from the side of the two levers 42 facing each other. To prevent the pin 70 from coming out, an anti-loosening baffle 52 is provided at the upper end of the adapter sleeve 50, which can be used to prevent the pin 70 from coming out after installation.

[0050] In this embodiment, the outer wall of the fixed seat 41 is a spherical surface 411; the valve core mounting cavity 11 is provided with an anti-disengagement sleeve 80 located above the middle frame 30, and the upper inner wall of the anti-disengagement sleeve 80 forms a constriction 81 that is adapted to the spherical surface 411, and the center of the spherical surface 411 falls on the axis of the pitch adjustment shaft of the handle 40.

[0051] In the above structure, the spherical 411 structure can fit more closely with the inner wall of the anti-slip sleeve 80 when the handle 40 drives the fixed seat 41 to swing, and the closing 81 can effectively prevent the fixed seat 41 from coming off.

[0052] In this embodiment, the inner wall of the valve core mounting cavity 11 is provided with a first inner groove 111, and the lower end of the anti-detachment sleeve 80 is provided with an anti-detachment claw 82 that is adapted to the first inner groove 111. The lower end of the anti-detachment claw 82 abuts against the upper end of the middle frame 30.

[0053] In the above structure, the anti-detachment claw 82 is adapted to the first inner groove 111 to fix the anti-detachment sleeve 80 and prevent the middle frame 30 from going up and detaching; the anti-detachment claw 82 is an elastic element, which achieves fixed attachment to the first inner groove 111 through elasticity.

[0054] In this embodiment, the outer wall of the anti-detachment sleeve 80 is provided with a third outer groove 83, and the third outer groove 83 is provided with a first sealing ring 84 that is adapted to seal the inner wall of the valve core mounting cavity 11; the inner wall of the anti-detachment sleeve 80 is provided with a second inner groove 85, and the second inner groove 85 is provided with a second sealing ring 86 that is adapted to seal the spherical surface 411 of the outer wall of the fixing seat 41.

[0055] In the above structure, the first sealing ring 84 and the second sealing ring 86 can prevent external moisture from entering the valve core mounting cavity 11, providing secondary protection for the wear-resistant ring 60 and the hot and cold water valve core 20.

[0056] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model. These improvements and modifications assumed above should also be considered within the protection scope of the present utility model.

Claims

1. A faucet, comprising a column, wherein a downwardly opening valve core mounting cavity is provided at the top of the column, a hot and cold water valve core is provided within the valve core mounting cavity, a water outlet support arm extending outward and having a water outlet is provided at the side wall of the top of the column, a cold water interface and a hot water interface communicating with the lower end of the hot and cold water valve core are provided at the bottom of the column, and the mixing outlet of the hot and cold water valve core is connected to the water outlet through the water outlet support arm, characterized in that: The hot and cold water valve core has a valve stem top height lower than the valve core mounting cavity opening height; the valve core mounting cavity has a central frame located above the hot and cold water valve core, which can rotate relative to the valve core mounting cavity, and a pair of brackets spaced apart along the axial direction of the valve stem swing axis are fixed at the upper end of the central frame; it also includes a handle, which is fixed to a fixed seat located in the valve core mounting cavity, and a pair of downwardly extending paddles spaced apart along the axial direction of the valve stem swing axis are provided on the lower surface of the fixed seat, with the upper end of each paddle hinged to the upper end of each bracket to control the pitch adjustment of the handle, and the lower end of each paddle having an upward-facing paddle groove; it also includes an adapter sleeve fitted onto the top of the valve stem, with paddle pins on both sides parallel to the valve stem swing axis, the paddle pins and paddle grooves adapting to allow the handle to paddle the valve stem swing during pitch adjustment to control the on / off of the water circuit, and to drive the central frame and valve stem to rotate when the handle is rotated to achieve temperature adjustment.

2. A faucet according to claim 1, characterized in that: The frame is annular, and a first outer groove is provided in the middle section of its outer side wall in the axial direction. A wear-resistant ring adapted to the inner wall of the valve core mounting cavity is provided in the first outer groove.

3. A faucet according to claim 2, characterized in that: The wear-resistant ring has several outwardly protruding wear-resistant blocks evenly distributed along its circumferential direction on both its inner and outer walls; or, while providing outwardly protruding wear-resistant blocks, an expansion opening is provided in the circumferential direction of the wear-resistant ring.

4. A faucet according to claim 2 or 3, characterized in that: The middle frame is also provided with a second outer groove located on both sides of the first outer groove, and the second outer groove is provided with an isolation sealing ring that is adapted to seal the inner wall of the valve core mounting cavity.

5. A faucet according to claim 1, characterized in that: The bracket has a first pin hole at its upper end; the lever has a second pin hole at its upper end, and the first pin hole and the second pin hole are hinged together by a pin; the height of the second pin hole is higher than the lever groove, and the height of the lever pin is lower than the second pin hole.

6. A faucet according to claim 5, characterized in that: The two levers are located on the sides of the two supports facing each other; the adapter sleeve is located between the adjacent levers.

7. A faucet according to claim 5 or 6, characterized in that: The adapter sleeve has two sides of the pin and an upwardly extending anti-disengagement baffle at its upper end. The anti-disengagement baffle abuts against the head of the pin to prevent the pin from coming out.

8. A faucet according to claim 1, characterized in that: The outer wall of the fixed seat is spherical; the valve core mounting cavity is provided with an anti-disengagement sleeve located above the middle frame, and the upper inner wall of the anti-disengagement sleeve forms a constriction that fits the spherical surface, and the center of the spherical surface falls on the axis of the pitch adjustment shaft of the handle.

9. A faucet according to claim 8, characterized in that: The valve core mounting cavity has a first inner groove on its inner wall, and the lower end of the anti-detachment sleeve has an anti-detachment claw that is adapted to the first inner groove. The lower end of the anti-detachment claw abuts against the upper end of the middle frame.

10. A faucet according to claim 8, characterized in that: The outer wall of the anti-detachment sleeve is provided with a third outer groove, and the third outer groove is provided with a first sealing ring that is adapted to seal the inner wall of the valve core mounting cavity; the inner wall of the anti-detachment sleeve is provided with a second inner groove, and the second inner groove is provided with a second sealing ring that is adapted to seal the spherical surface of the outer wall of the fixing seat.

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