Cold and hot water faucet

Abstract

The utility model provides a faucet which comprises a faucet shell, a valve body, a base and a water outlet part, the valve body is provided with a water inlet, a water inlet channel is correspondingly arranged on the base, the base and the valve body are matched in a sealing mode, and a ball body with at least the surface made of rubber materials is arranged between the water inlet channel of the base and the water inlet of the valve body. The ball body is movably arranged in the water inlet channel, a sealing section with diameter difference is arranged in the water inlet channel, and the ball body is in sealing fit with the sealing section when the faucet is closed. The sealing piece is directly designed into the ball body with at least the surface made of the rubber material, so that the ball body can be directly sealed with the water inlet channel of the base, the arrangement of a sealing ring of a cold and hot water inlet channel is reduced, and meanwhile, compared with a traditional steel ball, the rubber ball body also reduces the cost; due to the fact that the sealing ring is omitted, assembling procedures are reduced, in addition, the size of the base can at least omit the length of the thickness of the sealing ring which is originally arranged, and product cost is further reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of faucets, in particular to a faucet with hot and cold water functions. Background Art

[0002] In order to prevent the hot and cold water from flowing between the water inlet ends of the hot and cold water faucets, the current method is to set a one-way valve in the water inlet pipe. The one-way valve has a complex structure, which increases the production cost. There are also seals on the market that use steel balls to replace the one-way valves, but the steel ball seal requires a rubber sleeve that is sealed with the steel ball to be set in the water inlet pipe. For example, the intelligent universal thermostatic faucet valve assembly disclosed in application publication number CN115199782A has a water stop member, that is, a sealing ring, under the gravity ball of the thermostatic faucet. The gravity of the gravity ball and the reverse pressure during water mixing form a seal with the water stop member. This sealing method requires the setting of a sealing ring, which increases the cost and the installation process. In addition, the thermostatic valve core is also provided with a valve cover, which also needs to be set and installed separately, which further increases the cost and the number of installation processes. Utility Model Content

[0003] The technical problem to be solved by the utility model is how to reduce the parts of the hot and cold water faucets and reduce the cost while ensuring the quality.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A faucet comprises a faucet housing, a valve body, a base and a water outlet, wherein the valve body has a water inlet, and a corresponding water inlet channel is provided on the base, the base and the valve body are sealed together, a sphere at least the surface of which is made of a flexible material is provided between the water inlet channel of the base and the water inlet of the valve body, the sphere is movably arranged in the water inlet channel, and a sealing section with a diameter difference is provided in the water inlet channel, and the sphere is sealed together with the sealing section when hot and cold water flow in series.

[0006] Preferably, the sealing section has a step structure, and the ball is sealed and matched with the step structure when the faucet is closed.

[0007] Preferably, the contact surface between the step structure and the sphere is a conical surface or a curved surface.

[0008] Preferably, the water inlet of the valve body is provided with a blocking rod for blocking the ball from entering the valve body, and the blocking rod and the valve body are an integral structure.

[0009] Preferably, the blocking rod is extended toward the water inlet channel of the base, and after the base and the valve body are installed, the gap between the blocking rod and the water inlet channel is not sufficient for the ball to pass through.

[0010] Preferably, the top surface of the water inlet of the valve body is an inclined slope structure.

[0011] Preferably, it also includes a thermostatic valve core, which has a cold water inlet and a hot water inlet. Adjustable seals for adjusting the flow rate are provided at the cold water inlet of the thermostatic valve core and the hot water inlet of the thermostatic valve core. When the thermostatic valve core is adjusted within the adjustment stroke range, a gap for cold water to flow through is always maintained between the adjustable seal at the cold water inlet and the cold water inlet of the thermostatic valve core.

[0012] Preferably, the temperature regulating valve core is provided with a valve stem and a knob for driving the adjustable sealing member to move, a transmission member is connected between the valve stem and the knob, and the knob is provided with a transmission structure which is directly transmission-connected to the valve stem and transmission-connected to the transmission member.

[0013] Preferably, the transmission member is a hollow structure, and the locking screw passes through the knob, the transmission member and the valve stem in sequence to connect and lock them, and the two ends of the transmission member are respectively matched with the valve stem and the knob for transmission.

[0014] Preferably, the water outlet channel of the water outlet part is a conical structure with a diameter increasing from the inside to the outside, and when the pipe is inserted into the water outlet channel, the pipe becomes tighter and tighter.

[0015] The beneficial effect of the utility model is that the utility model directly designs the sealing member as a sphere at least of which the surface is made of rubber material, so that the sphere can be directly sealed with the water inlet channel of the base, thereby reducing the setting of the sealing ring of the hot and cold water inlet channel. At the same time, the rubber sphere also reduces the cost compared with the traditional steel ball. The assembly process is also reduced due to the lack of the sealing ring. In addition, since the sealing ring is not needed, the size of the base can be relatively shortened, at least the length of the original thickness of the sealing ring can be saved, thereby further reducing the cost of the product and reducing the weight of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is an exploded view of the structure of the utility model;

[0018] Figure 3 It is a bottom view of the utility model;

[0019] Figure 4 for Figure 3 Sectional view at AA in the middle;

[0020] Figure 5 It is a structural diagram of the valve body. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example

[0023] See also Figure 1-Figure 5 , shown in the figure is a faucet, specifically an induction water outlet faucet with a temperature adjustment function, including a faucet housing, a valve body 1, a base 2, a water outlet part, a solenoid valve 3 and a sensing part. Since the faucet housing and the sensing part are not related to the technical problem to be solved by the present application, they are not shown in the figure. The valve body 1 described in this embodiment has a cold and hot water inlet, and the corresponding base 2 is provided with a cold and hot water inlet channel 21. The base 2 and the valve body 1 are sealed together. The sealing between the base 2 and the valve body 1 is achieved by arranging a sealing ring on the surface of the valve body 1. The water inlet channel 21 of the base 2 and the valve body 1 are connected. A sphere 4, at least the surface of which is made of a flexible material, is provided between the water inlets. The sphere 4 is movably arranged in the water inlet channel 21, and a sealing section 211 with a diameter difference is provided in the water inlet channel 21. When cold and hot water flow in series, the sphere 4 is sealed with the sealing section 211. In this embodiment, the sphere 4 is made of a fully flexible material, specifically, a full rubber material. In this embodiment, the diameter of the sphere 4 is smaller than the diameter of the water inlet channel 21 so that water can pass through the periphery. Since the sphere 4 itself has good flexibility and sealing properties, when it contacts the water inlet channel 21, it can have a good sealing effect to prevent the cold and hot water from flowing in series.

[0024] In order to ensure that the ball 4 can be well sealed with the sealing section 211 and not get stuck, the sealing section 211 is designed to have a step structure in this embodiment, and the ball 4 is sealed with the step structure when the cold water generates water. The contact surface between the step structure and the ball 4 is a conical surface or a curved surface. The conical surface or the curved surface can play a good sealing role, and the right angle position of the step structure will not cut the surface of the ball 4, and will not cause damage to the surface of the ball 4.

[0025] In order to prevent the ball 4 from entering the valve body 1 and to allow water to flow into the valve body 1 from between the ball 4 and the valve body 1, a blocking rod 11 is provided at the water inlet of the valve body 1 to block the ball 4 from entering the valve body 1, and the blocking rod 11 and the valve body 1 are an integrated structure. In this embodiment, there are multiple blocking rods 11 to block the ball 4 from entering the valve body 1 while allowing water to enter the valve body 1. The blocking rod 11 is integrally arranged with the valve body 1 and can be injection molded as a whole with the valve body 1, which reduces production costs and further reduces installation processes.

[0026] In this embodiment, the baffle rod 11 is extended to the water inlet channel 21 of the base 2, and after the base 2 and the valve body 1 are installed, the gap between the baffle rod 11 and the water inlet channel 21 is not enough for the ball 4 to pass through. The top surface of the water inlet of the valve body 1 is an inclined slope structure 12. Since the valve core 5 is provided in the valve body 1, a circular installation chamber for installing the valve core 5 is provided in the valve body 1, and the water inlet of the valve body 1 needs to turn and enter from the top surface of the installation chamber. In this embodiment, the top surface of the water inlet of the valve body 1 is designed as an inclined structure 12, so that the size of the valve body 1 is further reduced while ensuring the water inlet flow, the amount of material used in the valve body 1 is reduced, the cost is further reduced, and the weight of the product is further reduced, which has certain advantages in transportation and storage. It is worth noting that due to the limited internal space of the faucet, reducing the size of the parts inside also has certain help for the assembly of the faucet, which is convenient for workers to install.

[0027] It also includes a thermostatic valve core 5, which has a cold water inlet and a hot water inlet. The cold water inlet of the thermostatic valve core 5 and the hot water inlet of the thermostatic valve core 5 are both provided with adjustable seals for adjusting the flow rate. When the thermostatic valve core 5 is adjusted within the adjustment range, a gap for cold water to flow through is always maintained between the adjustable seal at the cold water inlet and the cold water inlet of the thermostatic valve core 5. This setting is to avoid high temperature scalding the user. Specifically, the cold water inlet of the thermostatic valve core 5 is always kept in a state where it cannot be completely closed. When the hot water inlet is adjusted to the maximum, a small amount of cold water enters, so that the water temperature is not too high, which has a better protection effect on the user. At the same time, since there are more sealing rings in the valve core 5, the sealing rings are more prone to aging in a high temperature environment, so this design increases the service life of the sealing rings.

[0028] The thermostatic valve core 5 is provided with a valve stem 51 and a knob 52 for driving the adjustable seal. Since the sizes of faucets on the market are different, in order for the valve core 5 in this embodiment to adapt to faucets of various specifications, a transmission member 53 is connected between the valve stem 51 and the knob 52. The knob 52 is provided with a transmission structure that is directly connected to the valve stem 51 and connected to the transmission member 53 in this embodiment. The transmission member 53 is a hollow structure. The locking screw passes through the knob 52 and the transmission member 53 and is connected and locked with the valve stem 51 in sequence. The two ends of the transmission member 53 are respectively matched with the valve stem 51 and the knob 52 for transmission. In this embodiment, the outer surface of the transmission member 53 is provided with a tooth structure, and the corresponding valve stem 51 and the knob 52 are provided with an internal tooth structure for the transmission member 53 to be inserted and meshed. The setting of the transmission member 53 enables the knob 52 to adapt to faucets of various specifications. The length of the transmission member 53 can be set as needed to meet the needs. When faucets of different specifications are used, the transmission members 53 of different lengths can be replaced to achieve the purpose of universal use.

[0029] In order to ensure that the water outlet part has a better sealing effect, the water outlet channel 13 of the water outlet part is designed to be a conical structure with an increasing diameter from the inside to the outside in this embodiment. When the pipe 6 is inserted into the water outlet channel 13, it becomes tighter and tighter. In this way, there is no need to provide an additional seal between the water outlet pipe and the water outlet channel 13. Since the other end of the water outlet pipe is fixedly installed and the water outlet pipe is installed inside the faucet, its size is not long, so the water outlet pipe is in a state of being tightly pressed at both ends in the faucet. In this embodiment, the water outlet pipe is a rubber tube or other tube with a certain flexibility. The purpose of the flexibility is to achieve self-sealing when the two ends are pressed tightly, but the flexibility should not be too large to prevent the two ends from not being able to be pressed tightly.

Claims

1. A faucet, comprising a faucet housing, a valve body, a base, and a water outlet, wherein the valve body has a water inlet, and a corresponding water inlet channel is provided on the base, and the base and the valve body are sealed and matched, and characterized in that: A sphere with at least a surface made of a flexible material is provided between the water inlet channel of the base and the water inlet of the valve body. The sphere is movably arranged in the water inlet channel, and a sealing section with a diameter difference is provided in the water inlet channel. When cold and hot water flow in series, the sphere and the sealing section are sealed and matched.

2. A faucet as claimed in claim 1, characterized in that: The sealing section has a step structure, and the ball is sealed and matched with the step structure when the faucet is closed.

3. A faucet as claimed in claim 2, characterized in that: The contact surface between the step structure and the sphere is a conical surface or a curved surface.

4. A faucet as claimed in claim 1, 2 or 3, characterized in that: The water inlet of the valve body is provided with a blocking rod which blocks the ball from entering the valve body, and the blocking rod and the valve body are an integrated structure.

5. A faucet as claimed in claim 4, characterized in that: The blocking rod is extended toward the water inlet channel of the base, and after the base and the valve body are installed, the gap between the blocking rod and the water inlet channel is not enough for the ball to pass through.

6. A faucet as claimed in claim 5, characterized in that: The top surface of the water inlet of the valve body is an inclined slope structure.

7. A faucet according to claim 1, characterized in that: It also includes a thermostatic valve core, which has a cold water inlet and a hot water inlet. Adjustable seals for adjusting the flow rate are provided at the cold water inlet of the thermostatic valve core and the hot water inlet of the thermostatic valve core. When the thermostatic valve core is adjusted within the adjustment stroke range, a gap is always maintained between the adjustable seal at the cold water inlet and the cold water inlet of the thermostatic valve core for cold water to flow through.

8. A faucet according to claim 7, characterized in that: The temperature regulating valve core is provided with a valve stem and a knob for driving the adjustable sealing member to move, a transmission member is connected between the valve stem and the knob, and a transmission structure is provided on the knob that is directly transmission-connected to the valve stem and transmission-connected to the transmission member.

9. A faucet according to claim 8, characterized in that: The transmission member is a hollow structure, and the locking screw passes through the knob, the transmission member and the valve stem in sequence to connect and lock, and the two ends of the transmission member are respectively matched with the valve stem and the knob for transmission.

10. A faucet as claimed in claim 1, characterized in that: The water outlet channel of the water outlet part is a conical structure with a diameter increasing from the inside to the outside, and the water outlet channel becomes tighter and tighter when the pipe is inserted into the water outlet channel.

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