Stepless sliding device and lifting faucet

Abstract

The present invention discloses a stepless sliding device and a lifting faucet. The stepless sliding device includes an outer tube component, an inner tube component and two sealing rings. The inner tube component and the outer tube component are connected inside and outside and can slide relative to each other. One sealing ring is mounted on the outer tube component and cooperates with the inner tube component, and the other sealing ring is mounted on the inner tube component and cooperates with the outer tube component. A sealed cavity is formed by the two sealing rings. The sealed cavity includes a first area between the inner and outer tube components and between the two sealing rings; and also includes a suction and exhaust component that can inhale and exhaust air. The suction and exhaust component cooperates with the sealed cavity to automatically inhale and exhaust air according to the volume change of the sealed cavity. It has the following advantages: a quick exhaust and suction device is added to the sliding device, and the gas connection principle is used to increase the static friction when stationary and reduce the dynamic friction when sliding, so as to realize stepless sliding, reliable performance, labor-saving sliding, and extended service life. In addition, the force required for telescopic sliding is similar, which improves the comfort of use.

Description

Technical Field

[0001] The invention relates to the technical field of kitchen and bathroom, and in particular to a stepless sliding device and a lifting faucet. Background Art

[0002] Existing lifting faucets, such as basin lifting faucets, include a fixed rod and a lifting rod that can be lifted and lowered on the fixed rod. A water outlet unit is installed at the end of the lifting rod. The height of the water outlet unit can be adjusted by lifting the lifting rod. Existing height adjustment structures are as follows:

[0003] CN205841966U, a liftable faucet, a water outlet pipe is connected to the top of the faucet shell, a handle is arranged on the shell, a water inlet assembly is connected to the bottom of the shell, the lower end of the water outlet pipe extends to form a support rod located in the shell, at least two ring grooves are arranged on the outer periphery of the support rod, a positioning ring is arranged on the inner side of the top of the shell, the positioning ring is inserted into or out of the ring groove when the water outlet pipe is stretched up and down, and a hose passes through the inside of the support rod and is connected to the water outlet. A wear-resistant ring is arranged above the positioning ring. A guide sleeve is arranged in the shell, the water outlet pipe is located in the guide sleeve, the positioning ring is arranged above the guide sleeve, the bottom of the guide sleeve is located on a base, and the base is limited to the shell. CN102859085A, a faucet spout with adjustable height relative to a stationary base or surface, the faucet can be installed on the base or surface. The spout pipe can be slidably combined in the spout body, and the spout body contains a support member. The support member is received in the spout pipe and provides a front stopper at the lowest position. The pawl assembly in the support member engages with the end of the nozzle tube at any one of a series of pawl teeth, providing various additional stops / heights at which the nozzle tube can be held for operation. The lifting structure has poor guidance accuracy and cannot meet the adjustment of any height position, and cannot achieve stepless adjustment.

[0004] CN205065114U, a faucet with lifting and rotating functions, comprising a faucet body, a water outlet valve body and a water inlet hose; also comprising a lifting and rotating structure, which is arranged in the faucet body; the faucet body and the water outlet valve body are arranged separately, and the lifting and rotating structure drives the water outlet valve body to radially displace and circumferentially rotate; the lifting and rotating structure comprises a lifting straight pipe, a limiting friction unit, a fixed pipe connection and a connecting base; one end of the lifting straight pipe is fixedly connected to the water outlet valve body, and the other end is connected to the connecting base; the limiting friction unit is sleeved on the outer periphery of the connecting base, and is integrally installed in the fixed pipe connection. CN110094564A, a healthy instant hot water faucet with a humanized lifting device, comprising a faucet body, a water outlet pipe, a lifting pipe, a water outlet nozzle, a clamping ring and a clamping sleeve; the water outlet pipe is matched with the faucet body and communicated with the water outlet end of the faucet body; the lower end of the lifting pipe can be lifted and placed in the water outlet pipe, and the upper end of the lifting pipe is connected and communicated with the water outlet nozzle; the clamping ring is a C-shaped ring structure, and the clamping ring is sleeved on the lifting pipe; the clamping sleeve is sleeved on the clamping ring and a pushing structure is provided between the clamping sleeve and the clamping ring, and the lower end of the clamping sleeve is connected to the water outlet pipe and can rotate relatively; when the clamping sleeve rotates, the clamping sleeve drives the clamping ring to hug or loosen the lifting pipe through the pushing structure. Due to the influence of the friction force in the upward process and the gravity of the upper object, the upward force is large, the downward force is small, and the difference in the upper and lower operating force values ​​is large.

[0005] CN207421445U, a pneumatic lifting faucet, includes a faucet, a movable core shaft is installed under the faucet, and the movable core shaft is inserted into the positioning shell; a closed cavity is formed between the movable core shaft and the positioning shell; when adjusting the water outlet height, it is only necessary to lift the faucet upward to drive the movable core shaft upward, and at the same time, the one-way valve allows external air to enter the closed cavity, so that the faucet height is fixed, and the faucet can be rotated to adjust the water outlet angle; when lowering the water outlet height, it is only necessary to press or rotate the one-way valve to discharge the air in the closed cavity so that the faucet can be lowered. On the one hand, due to the influence of the friction force in the upward process and the gravity of the upper object, the upward force is large, the downward force is small, and the difference in the upper and lower operating force values ​​is large. On the other hand, during the descent process, the one-way valve needs to be manually controlled, which is inconvenient to operate. Summary of the invention

[0006] The present invention provides a stepless sliding device and a lifting faucet, which overcome the shortcomings of the sliding device and the lifting faucet in the background technology.

[0007] One of the technical solutions adopted by the present invention to solve its technical problem is:

[0008] The stepless sliding device comprises an outer tube component, an inner tube component and two sealing rings. The inner tube component and the outer tube component are connected inside and outside and can slide relative to each other. One sealing ring is installed on the outer tube component and cooperates with the inner tube component, and the other sealing ring is installed on the inner tube component and cooperates with the outer tube component. A sealed cavity is formed by the two sealing rings. The sealed cavity includes a first area located between the inner and outer tube components and between the two sealing rings; and also includes a suction and exhaust component that can inhale and exhaust air. The suction and exhaust component cooperates with the sealed cavity so as to automatically inhale and exhaust air according to the volume change of the sealed cavity.

[0009] In one embodiment, the suction and exhaust component has two deformation rings made of elastic material, and the suction and exhaust are achieved through the elastic deformation of the deformation rings.

[0010] In one embodiment, the two deformation rings realize air intake and exhaust respectively.

[0011] In one embodiment, the cross section of the deformation ring is V-shaped or Y-shaped.

[0012] In one embodiment, the two deformation rings are arranged in the same direction and are spaced apart along the extension direction.

[0013] In one embodiment, the suction component further includes a peripheral wall integrally connected between the two deformation rings.

[0014] In one embodiment, when the inner and outer tube components are close to each other, the volume of the sealed cavity increases, and when the inner and outer tube components are far away from each other, the volume of the sealed cavity decreases.

[0015] In one embodiment: the outer tube component includes an outer tube and a plug fixed at the end of the outer tube, the inner tube component includes an inner tube and a connecting component fixed at the end of the inner tube, the plug or the end of the outer tube is provided with the above-mentioned sealing ring that matches the inner tube, and the connecting component is located in the outer tube and is provided with another above-mentioned sealing ring that matches the outer tube.

[0016] In one embodiment: the suction component is mounted on the inner tube component, and the inner tube component is provided with a suction cavity that can be connected to the outside world. The suction component is mounted on the inner tube component and cooperates with the suction cavity to form a second area that can be connected to the first area. The sealed cavity also includes the above-mentioned second area.

[0017] In one embodiment: the suction and exhaust component is mounted on the outer tube component, the outer tube component is provided with a suction and exhaust cavity that can be connected to the outside world, the suction and exhaust component is mounted on the outer tube component and cooperates with the suction and exhaust cavity to form a third area that can be connected to the first area, and the sealed cavity also includes the above-mentioned third area.

[0018] In one embodiment: the inner tube component includes an inner tube and a connecting component fixed at the end of the inner tube, the connecting component is located inside the outer tube, the connecting component is provided with a suction and exhaust cavity that can be connected to the outside, the two deformation rings are mounted on the connecting component and the part of the suction and exhaust cavity between the two deformation rings forms a second area that can be connected to the first area, and the sealed cavity also includes the above-mentioned second area.

[0019] In one embodiment, the connecting component includes a transfer seat and a suction and discharge seat that can be sealed and fixed to the inner tube. The suction and discharge seat is fixed in the transfer seat, and the suction and discharge cavity is formed between the suction and discharge seat and the transfer seat.

[0020] In one embodiment: the adapter is provided with a through-port that penetrates inside and outside, the outer port of the through-port is connected to the first area, and the inner port is between the two deformation rings and connected to the second area.

[0021] In one embodiment, the outer peripheral wall of the suction and discharge seat is concavely provided with two installation grooves spaced apart along the telescopic direction, and the two deformation rings are respectively installed in the two installation grooves and matched with the inner peripheral wall of the adapter seat.

[0022] In one embodiment: the connecting component further includes a limiting seat, and the adapter seat and the inner tube are connected via the limiting seat.

[0023] In one embodiment: the outer tube component includes an outer tube and a fixed seat fixed outside the outer tube, a suction and exhaust cavity that can be connected to the outside is provided between the fixed seat and the outer tube, the two deformation rings are installed between the fixed seat and the outer tube at intervals along the telescopic direction, and the part of the suction and exhaust cavity between the two deformation rings forms a third area that can be connected to the first area, and the sealed cavity also includes the above-mentioned third area.

[0024] In one embodiment: the outer tube is provided with a through-port penetrating inside and outside, the inner port of the through-port is connected to the first area, and the outer port is between the two deformation rings and connected to the third area.

[0025] In one embodiment: the outer peripheral wall of the outer tube is concavely provided with two installation grooves spaced apart along the telescopic direction, and the two deformation rings are respectively installed in the two installation grooves and cooperate with the fixing seat.

[0026] In one embodiment: a second sealing ring is provided between the fixing seat and the outer tube, and the second sealing ring is located between the two deformation rings.

[0027] In one embodiment: the outer tube component includes an outer tube and a fixed seat fixed outside the outer tube, the fixed seat is provided with a suction and exhaust cavity that can be connected to the outside world, the two deformation rings are mounted on the fixed seat and the part of the suction and exhaust cavity between the two deformation rings forms a third area that can be connected to the first area, and the sealed cavity also includes the above-mentioned third area.

[0028] The second technical solution adopted by the present invention to solve its technical problem is: a stepless sliding device, including an outer tube component, an inner tube component and a sealed cavity arranged between the outer tube component and the inner tube component, the inner tube component and the outer tube component are internally and externally engaged and can slide relative to each other, and the sealed cavity can automatically inhale and exhaust according to the change of the volume of the sealed cavity.

[0029] The third technical solution adopted by the present invention to solve its technical problem is: a lifting faucet, including the stepless sliding device, the outer tube component is fixed on the faucet mounting platform, the inner tube component constitutes a lifting rod, and a water outlet unit is provided at the end of the lifting rod.

[0030] In one embodiment, the outer tube component constitutes the faucet body.

[0031] Compared with the background technology, this technical solution has the following advantages:

[0032] A quick exhaust and air intake device is added to the sliding device, which utilizes the gas connection principle to increase the static friction when stationary and reduce the dynamic friction when sliding, thereby realizing stepless sliding, reliable performance, labor-saving sliding, and extended service life. In addition, the force required for telescopic sliding is similar, which improves the comfort of use.

[0033] The two deformation rings realize air intake and exhaust respectively, and when the volume of the sealed cavity changes, the air intake or exhaust can be automatically controlled by the pressure change caused by the volume change.

[0034] When the inner and outer tube components are close to each other, the volume of the sealing cavity increases, and when the inner and outer tube components are far away from each other, the volume of the sealing cavity decreases. For example, when the sliding directions of the inner and outer tube components are arranged vertically, the lifting and lowering force values ​​are close.

[0035] The suction and discharge component also includes a peripheral wall integrally connected between the two deformation circles, which is convenient for assembly.

[0036] The connecting component is provided with a suction and exhaust cavity that can be connected to the outside world. Two deformation rings are installed on the connecting component and the part of the suction and exhaust cavity between the two deformation rings forms a second area that can be connected to the first area. The sealed cavity also includes the above-mentioned second area. The deformation ring is arranged on the connecting component, and the sliding life part and the exhaust and suction device are arranged separately, thereby ensuring the life and function of the entire lifting faucet.

[0037] The above-mentioned suction and discharge cavity is formed between the suction and discharge seat and the adapter seat, which is convenient for assembly.

[0038] The outer port of the through-hole is connected to the first area, the inner port is between the two deformation rings and connected to the second area, and the first area and the second area are connected through the through-hole to form a sealed cavity, which has a simple structure.

[0039] A suction and exhaust cavity that can be connected to the outside world is provided between the fixed seat and the outer tube. Two deformation rings are installed between the fixed seat and the outer tube at intervals along the telescopic direction, and the part of the suction and exhaust cavity between the two deformation circles forms a third area that can be connected to the first area. The sealed cavity also includes the above-mentioned third area. The sliding life parts and the exhaust and intake devices are arranged separately to ensure the life and function of the entire lifting faucet.

[0040] The inner port of the through-hole is connected to the first area, the outer port is between the two deformation rings and connected to the third area, and the first area and the third area are connected through the through-hole to form a sealed cavity, which has a simple structure.

[0041] A second sealing ring is arranged between the fixing seat and the outer tube, and the second sealing ring is arranged between the two deformation rings to improve the sliding stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0043] Figure 1 It is a three-dimensional schematic diagram of the lifting faucet of the first embodiment.

[0044] Figure 2 It is a three-dimensional schematic diagram of the main control mechanism of the lifting faucet in the first embodiment.

[0045] Figure 3 It is a three-dimensional exploded schematic diagram of the lifting faucet of the first embodiment.

[0046] Figure 4 It is a cross-sectional schematic diagram of the lifting faucet of the first embodiment.

[0047] Figure 5 yes Figure 4 A partial enlarged schematic diagram of .

[0048] Figure 6 yes Figure 5 A partial enlarged schematic diagram of point E.

[0049] Figure 7 It is a cross-sectional schematic diagram of the connecting components of the lifting faucet in the second embodiment.

[0050] Figure 8 It is a three-dimensional schematic diagram of the lifting faucet of the third embodiment.

[0051] Fig. 9 It is a three-dimensional exploded schematic diagram of the lifting faucet of the third embodiment.

[0052] Fig.10 It is a cross-sectional schematic diagram of the lifting faucet of the third embodiment.

[0053] Fig.11 yes Fig.10 A partial enlarged schematic diagram of .

[0054] Fig.12 It is a partial cross-sectional schematic diagram of the lifting faucet of the fourth embodiment.

[0055] Description of labels:

[0056] Lifting faucet A; outer tube component 1, outer tube 11, upper plug 12, sleeve 14; inner tube component 2, inner tube 21, connecting component 22, water outlet unit 23, discharge and suction cavity 221, limit seat 222, adapter seat 223, discharge and suction seat 224, suction port 2241, socket 24; sealing cavity 3, first sealing ring 31, second sealing ring 32, first area 33, second area 34, through-opening 35; discharge and suction component 4, first deformation ring 41, second deformation ring 42; main control mechanism B, main control valve body B1, control handle B2, mixing water pipe B3; peripheral wall 43; lifting faucet A', main control mechanism B', main control valve body B1', valve core B4, cold water pipe B5, hot water pipe B6, fixed seat 13, second discharge and suction cavity 131, connecting head 211, lower plug 24, third area 36, ​​second through-opening 37, second sealing ring 38. DETAILED DESCRIPTION

[0057] Embodiment 1

[0058] Please refer to Figures 1 to 6 (The arrow in the figure indicates the direction of air flow), the lifting faucet device includes a lifting faucet A and a main control mechanism B, and the lifting faucet A includes an outer tube component 1 and an inner tube component 2. The outer tube component 1 and the main control mechanism B are fixedly mounted on the faucet mounting platform, the inner tube component 2 can be lifted and connected in the outer tube component 1, and the inner tube component 2 constitutes a lifting rod of the lifting faucet, and a water outlet unit 23 is provided at the end of the inner tube component 2, and the water outlet unit 23 is such as a shower head. The water outlet unit 23 is plugged into a socket 24 fixedly mounted on the inner tube, so that the height of the water outlet unit 23 can be controlled by lifting the inner tube component 2, and the circumferential position of the water outlet unit 23 can be controlled by the inner tube component 2 being able to rotate relative to the outer tube component 1. The main control mechanism B includes a main control valve body B1, a valve core installed in the main control valve body B1, and a control handle B2 for transmission connection with the valve core. The main control valve body B1 is connected to the cold water pipe, the hot water pipe and the mixed water pipe B3. The valve core cooperates with the cold water pipe, the hot water pipe and the mixed water pipe B3. The switch, flow rate and water temperature can be controlled by operating the control handle B2. The mixed water pipe B3 passes through the outer tube component 1 and the inner tube component 2 and is connected to the water outlet unit 23, so as to control the water outlet unit 23 of the lifting faucet A to discharge water through the control handle B2. The outer tube component 1 and the main control mechanism B cooperate to form the faucet body. A sleeve 14 is also fixed outside the outer tube 11.

[0059] The lifting faucet A also includes two sealing rings 31 and 32, which are arranged between the outer tube component 1 and the inner tube component 2, and the first sealing ring 31 is mounted on the outer tube component 1 and matches the inner tube component 2, and the second sealing ring 32 is mounted on the inner tube component 2 and matches the outer tube component 1. The two sealing rings 31 and 32 form a sealed cavity 3, and the sealed cavity 3 includes a first area 33 located between the inner and outer tube components 1 and 2 and between the two sealing rings 31 and 32. In the specific structure: the outer tube component 1 includes an outer tube 11 and an upper plug 12 fixedly mounted on the upper end of the outer tube 11, the inner tube component 2 includes an inner tube 21 and a connecting component 22 fixedly mounted on the lower end of the inner tube 21, the plug 12 is provided with a first sealing ring 31 matching the inner tube 21, and the connecting component 22 is located in the outer tube 11 and is provided with a second sealing ring 32 matching the outer tube 21.

[0060] The lifting faucet A also includes a suction component 4 that can inhale and exhaust air. The suction component 4 includes two deformation rings 41 and 42 made of elastic material, such as silicone. The suction component 4 cooperates with the sealing cavity 3 to automatically inhale and exhaust air according to the volume change of the sealing cavity 3. Specifically, when the volume increases (the lifting rod descends), the first deformation ring 41 is elastically deformed to achieve suction, and when the volume decreases (the lifting rod rises), the second deformation ring 42 is elastically deformed to achieve exhaust. In the specific structure: the cross-section of the deformation rings 41 and 42 is a Y-shaped structure, and the deformation ring is formed by rotating the cross-section of the Y-shaped structure around the axis. Since the Y-shape has an opening, the pressure increases when the volume decreases. The increase in pressure can drive the second deformation ring 42 to deform to exhaust, and negative pressure is generated when the volume increases. The negative pressure can drive the first deformation ring 41 to deform to inhale; the first deformation ring 41 and the second deformation ring 42 are arranged in the same direction and the first deformation ring 41 and the second deformation ring 42 are arranged at intervals in the upper and lower directions along the extension direction, and the Y-shaped openings of the first deformation ring 41 and the second deformation ring 42 are arranged downward.

[0061] The suction component 4 is mounted on the connecting component 22 of the inner tube component 2, and the connecting component 22 is provided with a suction cavity 221 that can be connected to the outside world. The two deformation rings 41 and 42 of the suction component 4 are mounted on the connecting component 22, and the portion between the two deformation rings 41 and 42 of the suction cavity 221 forms a second area 34 that can be connected to the first area 33. The sealed cavity 3 includes the above-mentioned first area 33 and the above-mentioned second area 34. When the inner and outer tube components 1 and 2 are close to each other, the volume of the sealed cavity 3 increases, and when the inner and outer tube components 1 and 2 are away from each other, the volume of the sealed cavity 3 decreases. Specifically, the volume of the inner tube component 2 increases when it descends, and decreases when it rises. In the specific structure: the connecting component 22 includes a limit seat 222, a transfer seat 223 and a suction seat 224; the limit seat 222 is annular and fixedly connected to the lower end of the inner tube 21; the transfer seat 223 is a trapezoidal sleeve structure, the trapezoidal sleeve structure is arranged with a small diameter section and a large diameter section up and down, and an upward step surface is formed between the small diameter section and the large diameter section, the small diameter section is fixedly connected to the inner hole of the limit seat 222, and the lower end surface of the inner tube 21 is sealed against the step surface of the trapezoidal sleeve; The outer periphery of the suction seat 224 has a fixed section, an opening section and a connecting section arranged in sequence from top to bottom, the opening section is provided with an air intake port 2241 that runs through the inside and outside of the suction seat 224, the fixed section is fixed in the large diameter section, a gap is left between the connecting section and the large diameter section, and the gap between the suction seat 224 and the limiting seat constitutes the above-mentioned suction cavity 221; the outer peripheral wall of the connecting section of the suction seat 224 is recessed with two mounting grooves arranged at intervals along the telescopic direction, the two deformation rings 41, 42 are respectively assembled in the two mounting grooves and cooperate with the inner peripheral wall of the large diameter section of the adapter seat 223; the adapter seat 223 is provided with a through opening 35 that runs through the inside and outside, the outer port of the through opening 35 is between the two sealing rings 31, 32 and connected to the first area 33, and the inner port is between the two deformation rings 41, 42 and connected to the second area 34.

[0062] The inner tube component 2 (lifting rod) is in a static state: the weight of the lifting rod = the static friction force generated by the two sealing rings 31 and 32 + the air force of the lifting rod (the air pressure support force in the sealing cavity 3); among which: the air force of the deformation rings 41 and 42 (the air pressure support force in the sealing cavity 3) = the external tension of the deformation rings 41 and 42; the air force of the deformation rings 41 and 42 = the air force of the lifting rod; therefore: the weight of the lifting rod = the static friction force generated by the two sealing rings 31 and 32 + the external tension of the deformation rings 41 and 42.

[0063] The inner tube component 2 (lifting rod) moves downward, and the external force directly acts on the lifting rod. The volume of the sealed cavity 3 increases and generates negative pressure. The negative pressure causes the first deformation ring 41 located on the upper side to deform (the external force is greater than the deformation force of the deformation ring 41). The sealed cavity 3 quickly inhales air, the negative pressure is eliminated, and the air force disappears. At this time, it is only necessary to overcome the friction of the two sealing rings 31 and 32 to achieve descent, which saves effort. The inner tube component 2 (lifting rod) moves upward, and the external force directly acts on the lifting rod. The volume of the sealed cavity 3 decreases. The pressure increase causes the second deformation ring 42 located on the lower side to deform. The sealed cavity 3 is quickly exhausted and the air force disappears. At this time, it is necessary to overcome gravity and the friction of the sealing rings 31 and 32, which saves effort. The lifting faucet of this specific embodiment is equipped with a quick exhaust and air suction device, and uses the gas connection principle to increase the static friction of the lifting rod when it is stationary and reduce the dynamic friction of the lifting rod when it is lifted. It has reliable performance, saves effort in lifting, and extends the service life. In addition, the force value of the rise is similar to the force value of the fall, which improves the comfort of use. Furthermore, the lifting life parts and the exhaust and suction devices are arranged separately to ensure the life and function of the entire lifting faucet. Furthermore, by changing the thickness of the upper and lower parts of the deformation ring, the deformation force of the deformation ring can be changed, so that the downward force of the lifting rod can be made larger to overcome the counterweight, so that the upward force value is close to the downward force value.

[0064] The lifting faucet device of this embodiment is used for a basin lifting faucet. The water outlet unit 23 is connected to a mixing water pipe and cooperates with the lifting faucet A to form a pull-out faucet (a counterweight block B31 is also connected to the mixing water pipe B3). The pull-out faucet is not only easy to use, such as being convenient for users to wash their hair, but also has the conventional functions of a traditional basin faucet. The height of the faucet can be adjusted steplessly and the angle can be adjusted by rotation. A face washing splash can be set on the water outlet unit 23, which is convenient for girls to remove makeup and for users to wash their faces quickly. This type of faucet is particularly popular in Japan.

[0065] The lifting faucet device of this embodiment can produce the following advantages:

[0066] 1. Smoother and wider, stepless changes: 1. Stepless lifting: Pull and stop at any position, suitable for most consumers, and more consumer experience than the two-level height adjustment on the market. 2. Large-scale lifting: The lifting height can reach 120mm, with a wide range of applications. Compared with the lifting faucet on the market that only has a lifting height of 80mm, the distance is increased by 30%. 3. Smooth lifting: Smooth lifting, no sudden change in operation, bringing a better consumer experience.

[0067] 2. Extract and rotate, no dead angle in life: In daily life, people hope that the basin faucet can have a wider adjustment angle for cleaning and use. The stepless lifting basin faucet technology meets this demand. The shower head can be extracted and the support tube can be rotated left and right.

[0068] 3. Wide application range and long service life: This technology can be applied to a variety of basin faucets, and the service life of stepless lifting is up to 50,000 times. 1. Quick exhaust and quick suction: Quick exhaust and quick suction solves the problem caused by the previous quick exhaust and slow suction or quick suction and slow exhaust of the air pump. When the operation is relatively fast, the lifting rod will fall down because it has no time to exhaust or inhale. 2. Lifting height: The lifting height can be ≤120mm, which expands the range of consumer usage scenarios. 3. Shake amount: The limit of 30mm+O-ring before and after ensures that the shake amount is within 2°.

[0069] Embodiment 2

[0070] Please refer to Figure 7 , which is different from the first embodiment in that: the suction component 4 also includes a peripheral wall 43 integrally connected between the two deformation rings 41, 42. The outer peripheral wall of the connection section of the suction seat 224 is only recessed with a mounting groove, and the suction component 4 is installed in the mounting groove and the two deformation rings 41, 42 cooperate with the inner peripheral wall of the large diameter section of the adapter seat.

[0071] Embodiment 3

[0072] Please refer to Figure 8-Figure 11 , which is different from the first embodiment in that: the lifting faucet device comprises a lifting faucet A' and a main control mechanism B', the lifting faucet A' comprises an outer tube component 1 and an inner tube component 2. The outer tube component 1 is fixedly mounted on the faucet mounting platform, the inner tube component 2 can be lifted and connected in the outer tube component 1, the inner tube component 2 constitutes a lifting rod of the lifting faucet, and a water outlet unit 23 is provided at the end of the inner tube component 2, so that the height of the water outlet unit 23 can be controlled by lifting the inner tube component 2, and the circumferential angle of the water outlet unit 23 can be controlled by rotating the inner tube component 2 relative to the outer tube component 1. The main control mechanism B' is integrated in the outer tube component 1, and the outer tube component 1 is provided with a main control valve body B1'. The main control mechanism B' includes a valve core B4 installed in the main control valve body B1' and a control handle B2 that is connected to the valve core B4. The main control valve body B1' is connected to the cold water pipe B5, the hot water pipe B6 and the mixed water pipe B3. The valve core cooperates with the cold water pipe, the hot water pipe and the mixed water pipe B3. The switch, flow rate and water temperature can be controlled by operating the control handle B2. The mixed water pipe B3 passes through the outer tube component 1 and the inner tube component 2 and is connected to the water outlet unit 23, so that the water outlet unit 23 of the lifting faucet can be controlled to discharge water through the control handle B2. The lifting faucet device of this embodiment is used for a conventional kitchen faucet. The inner tube 21 is also fixedly connected to a connector 211, and the socket is fixedly arranged on the connector.

[0073] The outer tube component 1 includes an outer tube 11 and an upper plug 12 fixedly mounted on the upper end of the outer tube 11. The upper end of the outer tube 11 is recessed with a notch. The first sealing ring 31 is disposed in the notch and cooperates with the inner tube 21. The axial position is limited by the cooperation of the upper plug 12 and the outer tube 11. The inner tube component 2 includes an inner tube 21 and a lower plug 24 fixedly mounted on the lower end of the inner tube 21. The second sealing ring 32 is disposed on the lower plug 24 and cooperates with the outer tube 11.

[0074] The outer tube component 1 also includes a fixed seat 13 fixedly sleeved outside the outer tube 11, and a second suction cavity 131 that can be connected to the outside is provided between the fixed seat 13 and the outer tube 11, and the two deformation rings 41, 42 are installed between the fixed seat 13 and the outer tube 11 at intervals along the telescopic direction, and the part of the second suction cavity 131 between the two deformation rings 41, 42 forms a third area 36 that can be connected to the first area 33, and the sealed cavity 3 includes the above-mentioned first cavity 33 and the third area 36. The outer tube 11 is provided with a second through-hole 37 that penetrates inside and outside, and the inner port of the second through-hole 37 is located between the two sealing rings 31, 32 and connected to the first area 33, and the outer port is between the two deformation rings 41, 42 and connected to the third area 36. The outer peripheral wall of the outer tube 11 is concave with two second installation grooves arranged at intervals along the telescopic direction, and the two deformation rings 41, 42 are respectively installed in the two second installation grooves and match the inner wall of the fixed seat 13. The outer end of the outer tube 11 is provided with a flange, which is supported on the fixing seat 13. A gap is left between the outer tube and the inner wall of the fixing seat, and the gap forms the above-mentioned second suction cavity 131. An air passage is provided between the flange and the fixing seat. The Y-shaped openings of the two deformation rings 41 and 42 are arranged upward, the deformation ring 42 on the upper side is the second sealing ring 42, and the deformation ring 41 on the lower side is the first sealing ring 41.

[0075] The inner tube component 2 (lifting rod) moves downward, and the external force directly acts on the lifting rod, the volume of the sealed cavity 3 increases and generates negative pressure, which causes the first deformation ring 41 located on the lower side to deform (the external force is greater than the deformation force of the deformation ring 41), and the sealed cavity 3 quickly inhales air, the negative pressure is eliminated, and the air force disappears. At this time, only the friction of the two sealing rings 31 and 32 needs to be overcome to achieve descent, which saves effort. The inner tube component 2 (lifting rod) moves upward, and the external force directly acts on the lifting rod, the volume of the sealed cavity 3 decreases, and the pressure increases to cause the second deformation ring 42 located on the upper side to deform, and the sealed cavity 3 is quickly exhausted, and the air force disappears. At this time, only the friction of the sealing rings 31 and 32 needs to be overcome to achieve ascent, which saves effort.

[0076] As needed, a second sealing ring 38 is provided between the fixing seat 13 and the outer tube 11, and the second sealing ring 38 is located between the two deformation rings 41 and 42. The outer tube 11 is provided with two second through-holes 37 penetrating the inside and the outside, and the second sealing ring 38 is located between the two second through-holes 37. The third area includes the area of ​​the first deformation ring 41 and the second sealing ring 38, and the area of ​​the second deformation ring 41 and the second sealing ring 38.

[0077] Embodiment 4

[0078] Please refer to Fig.12 , which is different from the third embodiment in that: the suction component 4 also includes a peripheral wall 43 integrally connected between the two deformation rings 41, 42. The peripheral wall of the connecting section of the outer tube 11 is only concavely provided with a mounting groove, the suction component 4 is installed in the mounting groove and the two deformation rings 41, 42 cooperate with the inner peripheral wall of the fixing seat 13.

[0079] The above description is only a preferred embodiment of the present invention, and therefore cannot be used to limit the scope of the present invention. That is, equivalent changes and modifications made according to the patent scope of the present invention and the contents of the specification should still fall within the scope of the present invention.

Claims

1. A stepless sliding device, comprising an outer tube component, an inner tube component and two sealing rings, wherein the inner tube component and the outer tube component are connected inside and outside and can slide relative to each other, one sealing ring is attached to the outer tube component and matches the inner tube component, and the other sealing ring is attached to the inner tube component and matches the outer tube component, and a sealing cavity is formed by the two sealing rings, and the sealing cavity includes a first area located between the two sealing rings and the inner and outer tube components; characterized in that: It also includes a suction and exhaust component that can inhale and exhaust air. The suction and exhaust component cooperates with the sealed cavity to automatically inhale and exhaust air according to the volume change of the sealed cavity; the suction and exhaust component has two deformation rings made of elastic material, and the suction or exhaust is achieved by elastic deformation of the deformation rings; the cross-section of the deformation ring is V-shaped or Y-shaped; the two deformation rings are arranged in the same direction and the two deformation rings are arranged at intervals along the telescopic direction.

2. The stepless sliding device according to claim 1, characterized in that: The two deformation rings realize air intake and exhaust respectively.

3. The stepless sliding device according to claim 1, characterized in that: The suction component also includes a peripheral wall integrally connected between the two deformation circles.

4. The stepless sliding device according to claim 1, characterized in that: When the inner and outer tube components are close to each other, the volume of the sealed cavity increases, and when the inner and outer tube components are far away from each other, the volume of the sealed cavity decreases.

5. The stepless sliding device according to any one of claims 1 to 4, characterized in that: The outer tube component includes an outer tube and a plug fixed at the end of the outer tube, and the inner tube component includes an inner tube and a connecting component fixed at the end of the inner tube. The plug or the end of the outer tube is provided with the above-mentioned sealing ring that matches the inner tube, and the connecting component is located in the outer tube and is provided with another above-mentioned sealing ring that matches the outer tube.

6. The stepless sliding device according to any one of claims 1 to 4, characterized in that: The suction component is mounted on the inner tube component, and the inner tube component is provided with a suction cavity that can be connected to the outside. The suction component is mounted on the inner tube component and cooperates with the suction cavity to form a second area that can be connected to the first area. The sealed cavity also includes the above-mentioned second area.

7. The stepless sliding device according to any one of claims 1 to 3, characterized in that: The suction and exhaust component is mounted on the outer tube component, and the outer tube component is provided with a suction and exhaust cavity that can be connected to the outside. The suction and exhaust component is mounted on the outer tube component and cooperates with the suction and exhaust cavity to form a third area that can be connected to the first area. The sealed cavity also includes the above-mentioned third area.

8. The stepless sliding device according to any one of claims 1 to 3, characterized in that: The inner tube component includes an inner tube and a connecting component fixed at the end of the inner tube, the connecting component is located inside the outer tube, the connecting component is provided with a suction and exhaust cavity that can be connected to the outside, the two deformation rings are mounted on the connecting component and the part of the suction and exhaust cavity between the two deformation rings forms a second area that can be connected to the first area, and the sealed cavity also includes the above-mentioned second area.

9. The stepless sliding device according to claim 8, characterized in that: The connecting component comprises a transfer seat and a suction and discharge seat which can be sealed and fixedly connected to the inner tube. The suction and discharge seat is fixedly installed in the transfer seat, and the suction and discharge cavity is formed between the suction and discharge seat and the transfer seat.

10. The stepless sliding device according to claim 9, characterized in that: The adapter seat is provided with a through-port which penetrates inside and outside, wherein the outer port of the through-port is connected to the first area, and the inner port is located between the two deformation circles and is connected to the second area.

11. The stepless sliding device according to claim 10, characterized in that: The outer peripheral wall of the suction and discharge seat is concavely provided with two installation grooves which are arranged at intervals along the telescopic direction. The two deformation rings are respectively installed in the two installation grooves and matched with the inner peripheral wall of the adapter seat.

12. The stepless sliding device according to claim 9, characterized in that: The connecting component also includes a limiting seat, and the adapter seat and the inner tube are connected via the limiting seat.

13. The stepless sliding device according to any one of claims 1 to 3, characterized in that: The outer tube component includes an outer tube and a fixed seat fixed outside the outer tube, a suction and exhaust cavity that can be connected to the outside is provided between the fixed seat and the outer tube, the two deformation rings are installed between the fixed seat and the outer tube at intervals along the telescopic direction, and the part of the suction and exhaust cavity between the two deformation rings forms a third area that can be connected to the first area, and the sealed cavity also includes the above-mentioned third area.

14. The stepless sliding device according to claim 13, characterized in that: The outer tube is provided with a through-port which penetrates inside and outside, the inner port of the through-port is connected to the first area, and the outer port is between the two deformation rings and is connected to the third area.

15. The stepless sliding device according to claim 13, characterized in that: The outer peripheral wall of the outer tube is concavely provided with two installation grooves which are arranged at intervals along the telescopic direction. The two deformation rings are respectively installed in the two installation grooves and matched with the fixing seat.

16. The stepless sliding device according to claim 13, characterized in that: A second sealing ring is arranged between the fixing seat and the outer tube, and the second sealing ring is located between the two deformation rings.

17. The stepless sliding device according to any one of claims 1 to 3, characterized in that: The outer tube component includes an outer tube and a fixed seat fixed outside the outer tube, the fixed seat is provided with a suction and exhaust cavity that can be connected to the outside, the two deformation rings are mounted on the fixed seat and the part of the suction and exhaust cavity between the two deformation rings forms a third area that can be connected to the first area, and the sealed cavity also includes the above-mentioned third area.

18. Lifting faucet, characterized by: It comprises the stepless sliding device according to claim 1, wherein the outer tube component is fixedly mounted on a faucet mounting platform, the inner tube component constitutes a lifting rod, and a water outlet unit is provided at the end of the lifting rod.

19. The lifting faucet according to claim 18, characterized in that: The outer tube component constitutes the faucet body.

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