Low-resistance one-way sealing water feeding mechanism

Abstract

The utility model provides a low-resistance one-way sealing water feeding mechanism, which belongs to the technical field of water feeding mechanisms, and comprises a water inlet pipe, a water outlet pipe and a one-way sealing assembly, the one-way sealing assembly comprises a sealing sleeve, a sealing ball and a reset spring, a water outlet channel is arranged in the water outlet pipe, a water inlet channel is arranged in the water inlet pipe, and a water outlet channel is arranged in the water inlet pipe. The sealing sleeve is arranged in the water outlet channel, a flow channel is formed in the sealing sleeve, the sealing ball abuts against the upper portion of the flow channel under the action of the reset spring to form sealing fit, the water inlet pipe can be inserted into the lower portion of the flow channel to form insertion type movable sealing fit, and the mass of the sealing ball is smaller than that of the isometric solid steel ball. Compared with a traditional steel sealing ball, the sealing ball lighter in weight is adopted, the sealing ball is easy to move under the action of water pressure, resistance needing to be overcome by water flow during water feeding work is reduced, and the water feeding speed of the mechanism is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of water supply mechanisms, in particular to a low-resistance one-way sealed water supply mechanism. Background Art

[0002] In daily life, electric kettles are essential household appliances in modern kitchens and living rooms. They boil water quickly and conveniently, and are suitable for brewing tea, coffee, beverages, etc. Among them, spring-type electric kettles are more popular with consumers due to their unique water discharge method. Spring-type electric kettles include a water supply mechanism, which is an important channel for transporting water from the bottom of the kettle to the inside of the kettle.

[0003] In the prior art, for example, a patent with publication number CN216534910U discloses a spring-type electric kettle with two-way water inlet and outlet, which includes an upper water inlet assembly, in which a steel ball is abutted against a sealing sleeve by a spring to form a sealing fit. When the pressure of the upwelling water flow is sufficient, the steel ball can be lifted up to allow the water flow to flow into the water outlet inner tube. However, due to the heavy mass of the steel ball, a high pressure requirement for the water flow during the water supply process is required, which easily leads to a reduction in the water supply speed, especially at the beginning of water supply, when sufficient water pressure is required to overcome the resistance of the steel ball and the spring. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings and deficiencies of the prior art and to provide a low-resistance one-way sealed water supply mechanism.

[0005] The technical solution adopted by the utility model is as follows: a low-resistance one-way sealed water supply mechanism, including a water inlet pipe, a water outlet pipe and a one-way sealing assembly, the one-way sealing assembly including a sealing sleeve, a sealing ball and a reset spring, the water outlet pipe is provided with a water outlet channel, the water inlet pipe is provided with a water inlet channel, the sealing sleeve is provided in the water outlet channel, and a flow channel is provided in the sealing sleeve, the sealing ball abuts against the upper part of the flow channel under the action of the reset spring to form a sealing fit, the water inlet pipe can be inserted into the lower part of the flow channel to form an inserted movable sealing fit, and the mass of the sealing ball is less than the mass of a solid steel ball of equal volume.

[0006] It is further configured that the sealing sleeve is made of silicone material, and the sealing ball is made of glass material.

[0007] It is further configured that the sealing ball is made of high borosilicate glass material or quartz glass material.

[0008] It is further configured that the surface roughness of the glass is not greater than 0.05 um.

[0009] It is further configured that the sealing ball is a sphere with a hollow structure.

[0010] It is further configured that the mass of the sealing ball is 1 / 5-3 / 5 of the mass of a solid steel ball of equal volume.

[0011] It is further configured that a sealing portion adapted to the sealing ball is provided at the upper portion of the flow channel, the sealing portion is an arcuate sealing surface or a conical sealing surface, a sealing port adapted to the water inlet pipe is provided at the middle portion thereof, and at least one sealing convex ring adapted to the water inlet pipe is provided at the lower portion thereof.

[0012] It is further configured that the sealing sleeve includes an upper sleeve portion, a middle sleeve portion and a lower sleeve portion, and the outer diameters of the three increase successively, an expansion section that can form a tight fit with the middle sleeve portion is arranged in the water outlet channel, a first horizontal step is arranged between the upper sleeve portion and the middle sleeve portion, a contact plane parallel to the first horizontal step is arranged on the top of the expansion section, a gap is arranged between the upper sleeve portion and the inner wall of the water outlet channel, a second horizontal step is arranged between the lower sleeve portion and the middle sleeve portion, and the second horizontal step is in contact with the lower end face of the water inlet pipe.

[0013] It is further configured that a sealing seat is provided on the water inlet pipe, and when the water inlet pipe is inserted into the flow channel, the lower sleeve part abuts between the water inlet pipe and the sealing seat.

[0014] It is further configured that the one-way sealing assembly also includes an abutment seat, which is arranged between the reset spring and the sealing ball, the reset spring adopts a conical compression spring, and a positioning portion adapted to the upper end of the reset spring is arranged at the upper part of the water outlet channel, the lower end of the reset spring is sleeved outside the abutment seat, and the abutment seat is provided with an abutment portion adapted to the sealing ball facing the sealing ball, and the abutment portion is an arc-shaped abutment surface or a conical abutment surface.

[0015] The beneficial effects of the utility model are as follows: compared with the traditional steel sealing ball, the utility model adopts a lighter sealing ball, which is easy to move under the action of water pressure, reduces the resistance that the water flow needs to overcome during water supply work, and improves the water supply speed of the mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the utility model.

[0017] Figure 1 It is a cross-sectional view of the water inlet pipe and the water outlet pipe separated in the first embodiment;

[0018] Figure 2is a cross-sectional view of the sealing sleeve in the first embodiment;

[0019] Figure 3 It is an exploded view of the first embodiment;

[0020] Figure 4 is a cross-sectional view of the water outlet pipe in Example 1;

[0021] Figure 5 It is a partial cross-sectional view of the first embodiment;

[0022] Figure 6 It is a cross-sectional view of the connection between the water inlet pipe and the water outlet pipe in the first embodiment.

[0023] Figure 7 It is a partial cross-sectional view of the second embodiment. DETAILED DESCRIPTION

[0024] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0025] In the description of the present application, it should be understood that the terms "longitudinal", "radial", "length", "width", "thickness", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, unless otherwise specified, "plurality" means two or more.

[0026] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0027] In the description of this application, it should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for distinguishing two non-identical entities with the same name or non-identical parameters. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. The subsequent embodiments will not explain this one by one.

[0028] Embodiment 1:

[0029] like Figures 1 to 6 As shown, a low-resistance one-way sealed water supply mechanism includes an inlet pipe 1, an outlet pipe 2 and a one-way sealing component, the one-way sealing component includes a sealing sleeve 3, a sealing ball 4 and a reset spring 5, the outlet pipe 2 is provided with a water outlet channel 21, the inlet pipe 1 is provided with a water inlet channel 11, the sealing sleeve 3 is arranged in the water outlet channel 21, and a flow channel 31 is arranged in the sealing sleeve 3, the sealing sleeve 3 is made of a flexible material, such as silicone, rubber, etc., the sealing ball 4 abuts against the upper part of the flow channel 31 under the action of the reset spring 5 to form a sealing fit, thereby realizing an efficient one-way sealing function, the inlet pipe 1 can be inserted into the lower part of the flow channel 31 to form an inserted movable sealing fit, the inserted movable sealing fit means that the two can be plugged together, and a sealing fit will be formed after being plugged together, when the water flow pressure in the water inlet channel 11 increases, the water flow can push the sealing ball 4 to overcome the elastic force of the reset spring 5 and the gravity of the sealing ball 4, so that the sealing ball 4 is separated from the sealing sleeve 3 and can be passed by water. When the water flow pressure decreases or reverses, the return spring 5 will quickly push the sealing ball 4 back to re-form a sealing fit with the upper part of the flow channel 31 to prevent water from flowing back.

[0030] The mass of the sealing ball 4 is less than that of a solid steel ball of equal volume. Compared with the traditional steel sealing ball, the lighter sealing ball 4 is easy to move under the action of water pressure, which reduces the resistance that the water flow needs to overcome during water supply operation and improves the water supply speed of the mechanism. The density of the steel ball is generally 7.85g / cm³, of course, the density of different steel materials will fluctuate to a certain extent.

[0031] Based on the premise of equal volume, compared with the traditional steel sealing ball, the traditional steel sealing ball is solid. There are generally two ways to reduce the mass of the sealing ball. The first way is to replace the material with a lower density; the second way is to hollow out or hollow out the structure. Of course, using both methods at the same time is also a way.

[0032] Secondly, the sealing ball 4 is only a kind of sealing member of the one-way sealing assembly, and should not be limited to a spherical sealing member in fact. The sealing member may also be of other shapes, and the method of reducing the weight of the sealing member may be the same as the above method.

[0033] In this embodiment, the first method is adopted. Specifically, the sealing ball 4 is made of glass. Since the density of glass is generally 2.0 g / cm³ to 3.0 g / cm³, the use of glass can make the sealing ball 4 lighter.

[0034] Furthermore, the mass of the sealing ball 4 is 1 / 5-3 / 5 of the mass of a solid steel ball of equal volume. Under the premise of equal volume and a steel density of 7.85 g / cm³, the mass of the sealing ball 4 should not be too light.

[0035] In this embodiment, the sealing sleeve 3 is made of silicone material. Since the traditional steel sealing ball is easily bonded to the silicone sealing sleeve 3, especially when not used for a long time, the steel sealing ball and the silicone sealing sleeve 3 are adsorbed and stuck to each other, resulting in a significant increase in the water pressure required for the first water filling. If the bonding is too strong, water cannot even be filled normally.

[0036] Therefore, in this embodiment, the sealing ball 4 is made of glass material, which is less likely to adhere to the silicone sealing sleeve 3 when in use than a steel ball.

[0037] Specifically, the sealing ball 4 is made of high borosilicate glass. The density of high borosilicate glass is usually between 2.23g / cm³ and 2.35 g / cm³, which is lighter than ordinary glass. It also has the advantages of water resistance, high temperature resistance, strong resistance to cold and heat shock, acid and alkali resistance, high chemical stability, and high strength.

[0038] Alternatively, the sealing ball 4 is made of quartz glass, which has a density of about 2.2 g / cm³ and is lighter than ordinary glass. It also has high temperature resistance, low expansion coefficient, good thermal shock resistance, chemical stability and electrical insulation properties.

[0039] In this embodiment, the sealing ball 4 is preferably made of high borosilicate glass.

[0040] Furthermore, the surface roughness of the glass is no more than 0.05um, which is smoother than the surface of a steel ball and is not easy to stick to the silicone sealing sleeve 3 during use. If a steel ball is to achieve this roughness, it is difficult to process, resulting in an increase in the cost of the sealing ball 4.

[0041] Furthermore, a sealing portion 311 adapted to the sealing ball 4 is provided at the upper portion of the flow channel 31, and the sealing portion 311 is an arc-shaped sealing surface or a conical sealing surface. When the sealing ball 4 and the sealing portion 311 form a sealing fit, water backflow of the water outlet pipe 2 can be prevented, and the greater the water pressure above, the better the sealing effect.

[0042] A sealing opening 312 matched with the water inlet pipe 1 is provided in the middle of the flow channel 31 , and a stable and reliable sealing fit is formed when the water inlet pipe 1 is inserted into the sealing opening 312 .

[0043] At least one sealing convex ring 313 adapted to the water inlet pipe 1 is disposed at the lower portion of the flow channel 31 . In the present embodiment, two sealing convex rings 313 are disposed to cooperate with the sealing opening 312 to form multiple seals.

[0044] Furthermore, the sealing sleeve 3 includes an upper sleeve portion 301, a middle sleeve portion 302 and a lower sleeve portion 303, and the outer diameters of the three increase successively. An expansion section 211 that can form a tight fit with the middle sleeve portion 302 is provided in the water outlet channel 21, so that the sealing sleeve 3 is easy to disassemble and assemble relative to the water outlet channel 21, which is convenient for maintenance and replacement of the one-way sealing assembly.

[0045] A first horizontal step 304 is provided between the upper sleeve portion 301 and the middle sleeve portion 302, and a contact plane 212 parallel to the first horizontal step 304 is provided at the top of the expansion section 211. When the sealing sleeve 3 is installed into the water outlet channel 21, the first horizontal step 304 abuts against the contact plane 212, which can not only provide a stable installation reference, but also form an additional sealing structure, and at the same time make the sealing between the middle sleeve portion 302 and the expansion section 211 more reliable.

[0046] A gap 6 is provided between the upper sleeve portion 301 and the inner wall of the water outlet channel 21 . When water flows into the gap 6 , the sealing portion 311 and the sealing ball 4 can be more reliably sealed.

[0047] A second horizontal step 305 is provided between the lower sleeve portion 303 and the middle sleeve portion 302 . The second horizontal step 305 abuts against the lower end surface of the water inlet pipe 1 , and can provide a stable installation reference.

[0048] Furthermore, a sealing seat 7 is provided on the water inlet pipe 1. When the water inlet pipe 1 is inserted into the flow channel 31, the lower sleeve 303 abuts between the water inlet pipe 1 and the sealing seat 7, thereby forming an effective seal to avoid water leakage during the water supply process.

[0049] Furthermore, the one-way sealing assembly further includes an abutment seat 8 , which is disposed between the return spring 5 and the sealing ball 4 to prevent the return spring 5 from damaging the sealing ball 4 .

[0050] The return spring 5 is a conical compression spring. A positioning portion 213 adapted to the upper end of the return spring 5 is provided on the upper portion of the water outlet channel 21. The lower end of the return spring 5 is sleeved outside the abutment seat 8 to ensure the stability of the return spring 5 during operation.

[0051] The abutment seat 8 is provided with an abutment portion 81 matching the sealing ball 4 facing the sealing ball 4. The abutment portion 81 is an arcuate abutment surface or a conical abutment surface, which can reduce the deviation or movement of the sealing ball 4 during sealing.

[0052] Embodiment 2:

[0053] like Figure 7As shown, in this embodiment, only the structure of the sealing ball 4 is improved to achieve the purpose of reducing the mass. Specifically, the sealing ball 4 is a hollow sphere, and its mass is less than that of a solid steel ball of equal volume, whether it is made of steel or glass.

[0054] Of course, if the sealing ball 4 is positioned so as not to rotate, the non-sealing portion may be hollowed out.

[0055] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. A low-resistance one-way sealed water supply mechanism, characterized in that: The invention comprises a water inlet pipe (1), a water outlet pipe (2) and a one-way sealing component, wherein the one-way sealing component comprises a sealing sleeve (3), a sealing ball (4) and a return spring (5); a water outlet channel (21) is arranged in the water outlet pipe (2); a water inlet channel (11) is arranged in the water inlet pipe (1); the sealing sleeve (3) is arranged in the water outlet channel (21); a flow channel (31) is arranged in the sealing sleeve (3); the sealing ball (4) abuts against the upper part of the flow channel (31) under the action of the return spring (5) to form a sealing fit; the water inlet pipe (1) can be inserted into the lower part of the flow channel (31) to form an inserted movable sealing fit; the mass of the sealing ball (4) is less than the mass of a solid steel ball of equal volume.

2. A low-resistance one-way sealed water supply mechanism according to claim 1, characterized in that: The sealing sleeve (3) is made of silicone material, and the sealing ball (4) is made of glass material.

3. A low-resistance one-way sealed water supply mechanism according to claim 1 or 2, characterized in that: The sealing ball (4) is made of high borosilicate glass or quartz glass.

4. A low-resistance one-way sealed water supply mechanism according to claim 3, characterized in that: The surface roughness of the glass is no greater than 0.05 um.

5. A low-resistance one-way sealed water supply mechanism according to claim 1, characterized in that: The sealing ball (4) is a spherical body with a hollow structure.

6. A low-resistance one-way sealed water supply mechanism according to claim 2 or 5, characterized in that: The mass of the sealing ball (4) is 1 / 5 to 3 / 5 of the mass of a solid steel ball of equal volume.

7. A low-resistance one-way sealed water supply mechanism according to claim 1, characterized in that: The upper portion of the flow channel (31) is provided with a sealing portion (311) adapted to the sealing ball (4); the sealing portion (311) is an arcuate sealing surface or a conical sealing surface, the middle portion of which is provided with a sealing opening (312) adapted to the water inlet pipe (1), and the lower portion of which is provided with at least one sealing convex ring (313) adapted to the water inlet pipe (1).

8. A low-resistance one-way sealed water supply mechanism according to claim 7, characterized in that: The sealing sleeve (3) comprises an upper sleeve portion (301), a middle sleeve portion (302) and a lower sleeve portion (303), and the outer diameters of the three sleeve portions are increased successively. An expansion section (211) is provided in the water outlet channel (21) and can form a tight fit with the middle sleeve portion (302). A first horizontal step (304) is provided between the upper sleeve portion (301) and the middle sleeve portion (302). A contact plane (212) parallel to the first horizontal step (304) is provided at the top of the expansion section (211). A gap (6) is provided between the upper sleeve portion (301) and the inner wall of the water outlet channel (21). A second horizontal step (305) is provided between the lower sleeve portion (303) and the middle sleeve portion (302). The second horizontal step (305) contacts the lower end surface of the water inlet pipe (1).

9. A low-resistance one-way sealed water supply mechanism according to claim 8, characterized in that: The water inlet pipe (1) is provided with a sealing seat (7), and when the water inlet pipe (1) is inserted into the flow channel (31), the lower sleeve (303) abuts between the water inlet pipe (1) and the sealing seat (7).

10. A low-resistance one-way sealed water supply mechanism according to claim 1, characterized in that: The one-way sealing assembly further comprises an abutment seat (8), the abutment seat (8) being arranged between the return spring (5) and the sealing ball (4), the return spring (5) being a conical compression spring, the upper part of the water outlet channel (21) being provided with a positioning portion (213) matching the upper end of the return spring (5), the lower end of the return spring (5) being sleeved outside the abutment seat (8), the abutment seat (8) being provided with an abutment portion (81) matching the sealing ball (4) facing the sealing ball (4), the abutment portion (81) being an arcuate abutment surface or a conical abutment surface.

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