Connector with non-backflow sealing device

Abstract

The utility model relates to a connector with a non-backflow sealing device, which comprises a connector upper seat and a connector lower seat, the connector lower seat is provided with a lower water core structure, and the lower water core structure comprises a lower water receiving pipe and a leakage-proof sealing rod. The anti-leakage sealing rod is arranged in the lower water receiving pipe in a sliding mode in the axial direction, at least part of the upper portion of the anti-leakage sealing rod extends out of the upper side of the lower water receiving pipe and is in vertical pushing fit with the upper water core structure, and an upper water channel is formed between the anti-leakage sealing rod and the lower water receiving pipe; the middle part of the leakage-proof sealing rod is sleeved with a silica gel sealing ring, a first spring is arranged between the lower part of the leakage-proof sealing rod and the lower water receiving pipe, and the silica gel sealing ring is elastically pressed against the inner wall of the lower water receiving pipe through the first spring so as to open or close the water feeding channel; according to the connector, by means of the force of the first spring, the leakage-proof sealing rod is pushed upwards, the silica gel sealing ring is attached to the inner wall of the lower water receiving pipe, the self-sealing effect is achieved, water between a water suction pump and the water receiving pipe is prevented from overflowing out of the connector along with water pressure, and the problem of water backflow is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of electric connector, specifically a connector with check flow sealing device. BACKGROUND

[0002] The existing electric water bottle generally adopts automatic water outlet mode, or the tea stove generally adopts automatic water adding mode, and the main implementation structure is as Figure 1 The connector lower seat is internally provided with a water receiving pipe 4 communicated with the heating container, the water pump is connected with the water receiving pipe and the water outlet nozzle through the water pipe 5, the water pump can work to draw cold water into the heating container, or hot water is drawn out of the heating container and then discharged through the water outlet nozzle, and the height of the water outlet nozzle is generally higher than that of the connector lower seat and the water pump, so that a certain water pressure is formed in the water pipe, therefore, when the water pump stops working, part of water is remained in the water pipe between the water pump and the water receiving pipe and between the water outlet nozzle and the water pump, and the water will slowly overflow from the connector lower seat along with the water pressure, the longer the time, the more the water, and the water will gather and flow to the table top, which affects the sanitation and appearance, therefore, the applicant improves and perfects the electric connector, and provides a new technical scheme to solve the above-mentioned defects on the basis of the above-mentioned prior art for the consumer to select and use. SUMMARY

[0003] The utility model discloses a connector with check flow sealing device, which has simple and reasonable structure.

[0004] The utility model discloses a connector with check flow sealing device, which has simple and reasonable structure.

[0005] The utility model discloses a connector with check flow sealing device, which has simple and reasonable structure.

[0006] As a more specific scheme, the upper water core structure comprises an upper water inlet pipe, the upper water inlet pipe is internally provided with a second spring, a sealing steel ball and an elastic sealing sleeve; the elastic sealing sleeve is tightly fitted at the bottom port of the upper water inlet pipe, and the upper side of the elastic sealing sleeve is provided with a sealing end face; the sealing steel ball is movably abutted on the sealing end face, and the second spring is abutted between the sealing steel ball and the top end of the upper water inlet pipe.

[0007] The lower side of the leakage-proof sealing rod is further provided with a lower water sleeve, the lower water sleeve is connected at the bottom port of the lower water inlet pipe through a quick detachable structure, and the first spring is axially abutted between the leakage-proof sealing rod and the lower water sleeve.

[0008] As a further scheme, the lower water inlet pipe comprises a main body, the main body is internally provided with a wide pipe cavity, the main body is extended with a water inlet nozzle inserted into the upper water core structure at the top end, the water inlet nozzle is internally provided with a narrow pipe cavity, an inclined sealing wall is arranged between the wide pipe cavity and the narrow pipe cavity, and the silica gel sealing ring is elastically pressed against the inclined sealing wall.

[0009] As a further scheme, the leakage-proof sealing rod is respectively provided with a plurality of first-level convex ribs, second-level convex ribs and third-level convex ribs which are radially extended and gradually reduced in extension length, corresponding to the wide pipe cavity, the narrow pipe cavity and the upper side of the lower water inlet pipe, an upper water passage is formed between adjacent two first-level convex ribs or second-level convex ribs and the lower water inlet pipe, and the silica gel sealing ring is clamped between the first-level convex ribs and the second-level convex ribs.

[0010] As a further scheme, the lower water sleeve is upwardly extended with a lower positioning portion at the center, and the lower end of the first spring is sleeved outside the lower positioning portion; the bottom end of the leakage-proof sealing rod is downwardly extended with an upper positioning portion opposite to the lower positioning portion, and the upper end of the first spring is sleeved outside the upper positioning portion.

[0011] As a further scheme, the upper side of the elastic sealing sleeve is integrally extended with a sealing lip in a trumpet shape, the outer wall surface of the sealing lip is spaced apart from the elastic sealing sleeve, and the inner wall surface of the sealing lip forms the sealing end face.

[0012] As a further scheme, the height of the leakage-proof sealing rod extending out of the upper side of the sealing end face is H1, and the maximum distance between the upper positioning portion and the lower positioning portion when the leakage-proof sealing rod is reset is H2, wherein H1>H2.

[0013] As a further scheme, the quick detachable structure comprises two reverse buckling blocks and two buckling interfaces corresponding to the number of the reverse buckling blocks; the two reverse buckling blocks are oppositely arranged on the outer side surface of the lower water sleeve, and the two buckling interfaces are correspondingly arranged on the lower water inlet pipe.

[0014] As a further scheme, the bottom of the lower water pipe is provided with two open-type anti-stupid notches staggered with the two buckling interfaces, and the outer side of the lower water sleeve is provided with two anti-stupid blocks matched with the anti-stupid notches to align the buckling blocks with the buckling interfaces.

[0015] The utility model has the advantages of the following:

[0016] The connector with the check valve sealing device pushes the leakproof sealing rod upward when the kettle is taken away, and the silicone sealing ring is attached to the inner wall of the lower water pipe, so that the water in the lower water pipe is not directly sprayed out, and the water between the water pump and the water pipe is prevented from overflowing out of the connector due to water pressure, thus solving the water backflow problem and maintaining the hygiene and aesthetics of the table top. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The utility model is a background technical structure schematic view.

[0018] Figure 2 The utility model is a cross-sectional structure schematic view of a first embodiment.

[0019] Figure 3 The utility model is a cross-sectional structure schematic view of a water inlet core structure and a water outlet core structure separation.

[0020] Figure 4 The utility model is a cross-sectional structure schematic view of a water inlet core structure and a water outlet core structure separation.

[0021] Figure 5 The utility model is a cross-sectional structure schematic view of a water outlet core structure.

[0022] Figure 6 The utility model is a cross-sectional structure schematic view of a water outlet core structure.

[0023] Figure 7 The utility model is a cross-sectional structure schematic view of a water inlet core structure and a water outlet core structure separation.

[0024] Figure 8 The utility model is a cross-sectional structure schematic view of a water inlet core structure and a water outlet core structure separation.

[0025] Figure 9 The utility model is a cross-sectional structure schematic view of a water inlet core structure and a water outlet core structure separation.

[0026] Figure 10 The utility model is a cross-sectional structure schematic view of a water inlet core structure and a water outlet core structure separation. DETAILED DESCRIPTION

[0027] The utility model is further described below in combination with the drawings and embodiments. Specific Implementation Example 1:

[0028] like Figures 1 to 7 As shown, a connector equipped with a backflow prevention sealing device includes an upper connector seat 1 and a lower connector seat 2. The upper connector seat 1 has an upper water core structure A at its center, and the lower connector seat 2 has a lower water core structure B that can conduct water through the upper water core structure A at its center. The lower water core structure B includes a lower water inlet pipe 3 and a leak-proof sealing rod 4. The leak-proof sealing rod 4 is slidably disposed within the lower water inlet pipe 3 along the axial direction, and at least part of its upper part extends out of the upper side of the lower water inlet pipe 3 and is vertically pushed and engaged with the upper water core structure A. A water inlet channel 301 is formed between the leak-proof sealing rod 4 and the lower water inlet pipe 3. A silicone sealing ring 5 is sleeved on the middle part of the leak-proof sealing rod 4, and a first spring 6 is provided between its lower part and the lower water inlet pipe 3. The first spring 6 causes the silicone sealing ring 5 to elastically press against the inner wall of the lower water inlet pipe 3 to conduct or close the water inlet channel 301.

[0029] This connector relies on the force of the first spring 6 to push the leak-proof sealing rod 4 upward when the kettle is lifted. The silicone sealing ring 5 then adheres to the inner wall of the lower water pipe 3, achieving a self-sealing effect. This prevents water in the lower water pipe 3 from spraying out directly and also prevents water between the water pump and the water pipe from overflowing from the connector due to water pressure, thus solving the water backflow problem and maintaining the cleanliness and aesthetics of the countertop.

[0030] The upper water core structure A includes an upper water inlet pipe 8, inside which is provided a second spring 9, a sealing steel ball 10, and an elastic sealing sleeve 11; the elastic sealing sleeve 11 is tightly fitted to the bottom port of the upper water inlet pipe 8, and a sealing end face 111 is provided on the upper side of the elastic sealing sleeve 11; the sealing steel ball 10 is movably supported on the sealing end face 111, and the second spring 9 is supported between the sealing steel ball 10 and the top of the upper water inlet pipe 8; in the normal static state, the second spring 9 presses against the sealing steel ball 10, and the sealing steel ball 10 abuts against the elastic sealing sleeve 11 to prevent water in the kettle from leaking downwards.

[0031] The top end of the upper water pipe 8 is provided with an upper spring support frame 81, which forms multiple water outlets. One end of the second spring 9 is actually abutted against the upper spring support frame 81.

[0032] The lower side of the leak-proof sealing rod 4 is also provided with a drain sleeve 7. The drain sleeve 7 is assembled and connected to the bottom port of the lower water pipe 3 through a quick-release structure. The first spring 6 is axially abutted between the leak-proof sealing rod 4 and the drain sleeve 7. The drain sleeve 7 encapsulates the bottom port of the lower water pipe 3 and provides a support point for the first spring 6, thereby fixing the leak-proof sealing rod 4.

[0033] The lower water inlet pipe 3 includes a main body 31, which has a wide cavity 311. A water inlet nozzle 32 extends from the top of the main body 31 and is inserted into the upper water core structure A. The water inlet nozzle 32 has a narrow cavity 321, the diameter of which is smaller than that of the wide cavity 311. An inclined sealing wall 33 is provided between the wide cavity 311 and the narrow cavity 321. The silicone sealing ring 5 is elastically pressed against the inclined sealing wall 33. The top of the water inlet nozzle 32 has an inlet surface, and the water inlet nozzle 32 is used to quickly connect the lower water inlet pipe 3 with the upper water core structure A. The silicone sealing ring 5 abuts against the inclined sealing wall 33, and under the axial thrust of the first spring 6, they can be tightly pressed together to achieve a self-sealing effect.

[0034] The leak-proof sealing rod 4 is provided with several radially extending primary ribs 41, secondary ribs 42, and tertiary ribs 43 on the upper side of the wide pipe cavity 311, the narrow pipe cavity 321, and the lower water pipe 3, respectively. The extension length of each rib gradually decreases. A water inlet channel 301 is formed between two adjacent primary ribs 41 or secondary ribs 42 and the lower water pipe 3. The silicone sealing ring 5 is snapped between the primary ribs 41 and the secondary ribs 42. In order to avoid the primary ribs 41, secondary ribs 42, and tertiary ribs 43 being too dense, in this embodiment, there are four primary ribs 41, secondary ribs 42, and tertiary ribs 43, which form a cross structure.

[0035] The extension lengths of the primary rib 41 and the secondary rib 42 are mainly adapted to their corresponding inner diameter of the pipe cavity, so that the anti-leakage sealing rod 4 forms a radial support force, preventing the anti-leakage sealing rod 4 from shaking significantly. On this basis, the water inlet channel 301 is formed between two adjacent primary ribs 41 or secondary ribs 42, so that the lower water core structure B maintains water inlet efficiency.

[0036] The drain sleeve 7 has a lower positioning part 71 extending upward from its center, and the lower end of the first spring 6 is sleeved on the lower positioning part 71. The bottom end of the leak-proof sealing rod 4 extends downward from the lower positioning part 71 to the upper positioning part 44, and the upper end of the first spring 6 is sleeved on the upper positioning part 44. By using the cooperation of the lower positioning part 71 and the upper positioning part 44, the depth of downward sliding of the leak-proof sealing rod 4 can be limited. In addition, the first spring 6 is positioned and fixed to prevent the first spring 6 from deforming or shifting under pressure.

[0037] The upper part of the drain sleeve 7 is provided with a lower spring support frame 72, which forms multiple water inlets. The lower positioning part 71 is a columnar structure that extends upward from the center of the lower spring support frame 72.

[0038] The upper side of the elastic sealing sleeve 11 is integrally extended with a trumpet-shaped sealing lip 112. The outer wall surface of the sealing lip 112 is spaced apart from the elastic sealing sleeve 11, and the inner wall surface of the sealing lip 112 forms a sealing end face 111. Compared with the traditional structure, the sealing lip 112 of this structure is more flexible and elastic, ensuring that the entire sealing lip 112 can completely cover the surface of the sealing steel ball 10, thereby improving the sealing effect.

[0039] The height of the leak-proof sealing rod 4 extending above the sealing end face 111 is H1. When the leak-proof sealing rod 4 is reset, the maximum distance between the upper positioning part 44 and the lower positioning part 71 is H2, where H1 > H2.

[0040] When the leak-proof sealing rod 4 comes into contact with the sealing steel ball 10, it is limited by the weight of the sealing steel ball 10 and the force of the second spring 9. The leak-proof sealing rod 4 can only slide downward. After sliding down a distance H2, the upper positioning part 44 will abut against the lower positioning part 71 to limit the maximum sliding depth of the leak-proof sealing rod 4. After the leak-proof sealing rod 4 has a supporting force, it will push up the sealing steel ball 10 to form a conductive gap. Therefore, when H1>H2, the leak-proof sealing rod 4 will no longer move down and will always maintain a fixed conductive gap.

[0041] Based on the above structure, the connector is used as follows:

[0042] After the connector upper seat 1 and connector lower seat 2 are coupled, the water inlet nozzle 32 is inserted into the elastic sealing sleeve 11 to form a sealed connection (the inner wall of the elastic sealing sleeve 11 is provided with several sealing ribs 113). At the same time, the leak-proof sealing rod 4 passes through the elastic sealing sleeve 11 and first abuts against the sealing steel ball 10. The sealing steel ball 10 presses against the lower leak-proof sealing rod 4. The leak-proof sealing rod 4 can only move downwards until it is supported. At the same time, the silicone sealing ring 5 moves downwards and leaves the inclined sealing wall 33, and the water inlet channel 301 is connected. After the leak-proof sealing rod 4 is supported, the upper part of the leak-proof sealing rod 4 pushes up the sealing steel ball 10. The sealing steel ball 10 leaves the sealing end face 111 to form a conductive gap and connects with the water inlet channel 301, thereby enabling water inlet or pumping operation.

[0043] The quick-release structure includes two inverted buckles 73 and two buckle interfaces 34 corresponding to the number of inverted buckles 73; the two inverted buckles 73 are arranged on opposite sides of the outer surface of the drain sleeve 7, and the two buckle interfaces 34 are opened on the lower water pipe 3 corresponding to the inverted buckles 73; the drain sleeve 7 is fixed by a quick connection method, which is easy to install and disassemble, has a firm connection, and can improve production efficiency.

[0044] The bottom of the lower water pipe 3 has two open anti-fool notches 35, which are staggered with two snap-fit ​​interfaces 34. The outer side of the lower water sleeve 7 is provided with two anti-fool blocks 74. The anti-fool blocks 74 cooperate with the anti-fool notches 35 to align the snap-fit ​​block 73 with the snap-fit ​​interface 34. Before assembly, when the anti-fool blocks 74 correspond to the anti-fool notches 35, the snap-fit ​​block 73 is exactly aligned with the snap-fit ​​interface 34. During assembly, the anti-fool blocks 74 and the anti-fool notches 35 serve as guides to ensure that the snap-fit ​​block 73 is snapped into the snap-fit ​​interface 34, thereby improving the assembly efficiency of the lower water core structure B. Specific Implementation Example 2:

[0045] The difference between Specific Embodiment Two and Specific Embodiment One is that: Figure 8 As shown, the bottom of the lower water pipe 3 is integrally provided with a horizontal connecting pipe 12. The horizontal connecting pipe 12 is preferably set at 90° with the lower water pipe 3. In this embodiment, the bottom end of the lower water pipe 3 forms a bottom opening 302. At this time, the drain sleeve 7 is replaced by a closed bottom cover 13, which is positioned and fastened in the bottom opening 302 by using the same structure of the inverted buckle block 73 and the anti-fooling block 74. Specific Implementation Example 3:

[0046] The difference between Specific Embodiment Three and Specific Embodiment One is that: Figure 9 As shown, it also includes a detachable 90° elbow 13. The 90° elbow 13 includes a transverse connecting pipe 12 and a longitudinal connecting pipe 14 sleeved at the bottom of the lower water pipe. The bottom of the lower water pipe 3 has at least one sealing groove along its length. A silicone sealing ring 15 is inserted into each sealing groove. The silicone sealing ring 15 elastically abuts against the inner wall of the longitudinal connecting pipe 14 to achieve a sealing effect. Specific Implementation Example 4:

[0047] Specific embodiment four is similar to specific embodiment two, except that: Figure 10 As shown, a separate sealing plug 16 is provided inside the bottom opening 302, and the bottom end of the lower water pipe 3 is connected to a cap 17 that can open or close the bottom opening. The sealing plug 16 is placed at the bottom opening 302 through the cap 17, and an inverted block 73 is provided on the opposite side of the bottom of the lower water pipe 3. A fastening interface 34 is provided on the cover wall of the cap 17 corresponding to the inverted block 73. The cap 17 is fastened to the bottom opening 302 through the inverted block 73 and the fastening interface 34. In other embodiments, the positions of the fastening interface 34 and the inverted block 73 can be interchanged.

[0048] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A connector equipped with a backflow prevention sealing device, comprising an upper connector seat and a lower connector seat, wherein an upper water core structure is provided at the center of the upper connector seat, and a lower water core structure capable of conducting the upper water core structure is provided at the center of the lower connector seat, characterized in that: The lower water core structure includes a lower water inlet pipe and a leak-proof sealing rod. The leak-proof sealing rod is slidably disposed inside the lower water inlet pipe along the axial direction, and at least part of its upper part extends out of the upper side of the lower water inlet pipe and is vertically pushed and engaged with the upper water core structure. A water inlet channel is formed between the leak-proof sealing rod and the lower water inlet pipe. A silicone sealing ring is sleeved on the middle part of the leak-proof sealing rod, and a first spring is provided between its lower part and the lower water inlet pipe. The first spring causes the silicone sealing ring to elastically press against the inner wall of the lower water inlet pipe to conduct or close the water inlet channel.

2. A connector equipped with a backflow prevention sealing device according to claim 1, characterized in that: The upper water core structure includes an upper water inlet pipe, inside which is provided a second spring, a sealing steel ball, and an elastic sealing sleeve; the elastic sealing sleeve is tightly fitted to the bottom port of the upper water inlet pipe, and a sealing end face is provided on the upper side of the elastic sealing sleeve; the sealing steel ball is movably supported against the sealing end face, and the second spring is supported between the sealing steel ball and the top of the upper water inlet pipe.

3. A connector equipped with a backflow prevention sealing device according to claim 2, characterized in that: The lower side of the leak-proof sealing rod is also provided with a drain sleeve. The drain sleeve is assembled and connected to the bottom port of the lower water pipe through a quick-release structure. The first spring axially abuts against the leak-proof sealing rod and the drain sleeve.

4. A connector equipped with a backflow prevention sealing device according to claim 1, characterized in that: The lower water inlet pipe includes a main body with a wide cavity inside. A water inlet nozzle extends from the top of the main body and is inserted into the upper water core structure. A narrow cavity is provided inside the water inlet nozzle. An inclined sealing wall is provided between the wide cavity and the narrow cavity. The silicone sealing ring is elastically pressed against the inclined sealing wall.

5. A connector equipped with a backflow prevention sealing device according to claim 4, characterized in that: The leak-proof sealing rod is provided with several radially extending primary, secondary, and tertiary ribs on the upper side of the wide cavity, narrow cavity, and lower water pipe, respectively. The extension length gradually decreases. A water inlet channel is formed between two adjacent primary or secondary ribs and the lower water pipe. The silicone sealing ring is snapped between the primary and secondary ribs.

6. A connector equipped with a backflow prevention sealing device according to claim 3, characterized in that: The drain sleeve has a lower positioning part extending upward from its center, and the lower end of the first spring is sleeved on the outside of the lower positioning part; the bottom end of the leak-proof sealing rod has an upper positioning part extending downward from the lower positioning part, and the upper end of the first spring is sleeved on the outside of the upper positioning part.

7. A connector equipped with a backflow prevention sealing device according to claim 2, characterized in that: The upper side of the elastic sealing sleeve has an integrally extended trumpet-shaped sealing lip, the outer wall surface of the sealing lip is spaced apart from the elastic sealing sleeve, and the inner wall surface of the sealing lip forms a sealing end face.

8. A connector with a backflow prevention sealing device according to claim 6, characterized in that: The height of the leak-proof sealing rod extending above the sealing end face is H1, and when the leak-proof sealing rod is reset, the maximum distance between the upper positioning part and the lower positioning part is H2, where H1 > H2.

9. A connector equipped with a backflow prevention sealing device according to claim 3, characterized in that: The quick-release structure includes two buckle blocks and two buckle interfaces corresponding to the number of buckle blocks; the two buckle blocks are arranged on opposite sides of the outer surface of the drain sleeve, and the two buckle interfaces are opened on the lower water inlet pipe corresponding to the buckle blocks.

10. A connector with a backflow prevention sealing device according to claim 9, characterized in that: The bottom of the lower water pipe has two open anti-fool notches, which are staggered with two fastening interfaces. The outer side of the lower sleeve has two anti-fool blocks, which cooperate with the anti-fool notches to align the buckle block with the fastening interface.

Images