Multiple waterproof and leakproof coupler

Abstract

The multiple waterproof and leakproof coupler comprises a water inlet valve element, the water inlet valve element comprises a water inlet sleeve, a water inlet channel is formed in the water inlet sleeve, and a valve element assembly capable of being communicated with or sealing the water inlet channel is arranged in the water inlet sleeve. The valve element assembly at least comprises an elastic sealing sleeve connected to a water inlet end opening of the water inlet sleeve in a close fit mode, the inner wall face of the elastic sealing sleeve extends to form more than two annular sealing lips, and the more than two annular sealing lips are arranged at intervals in the vertical direction and are formed in the water inlet direction of the water inlet channel in an upward stretching mode. According to the coupler, the annular sealing lips of the elastic sealing sleeve can extend in the insertion direction of the water inlet pipe, so that the annular sealing lips are better attached to the outer wall of the water inlet pipe, and the contact area of the annular sealing lips and the outer wall of the water inlet pipe can be increased by increasing the number of the annular sealing lips; therefore, the waterproof and leakage-proof effects of the water inlet valve element are improved, and the safety of the coupler is greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of couplers, in particular to a multiple waterproof and leakproof coupler. Background Art

[0002] At present, the coupler structure is as shown in Chinese patent literature, patent number: CN202220490306.X, a water inlet and outlet temperature controller and a drinking water device using the temperature controller, wherein the valve core assembly 3 mainly includes a water inlet sleeve, a fixed spring frame, a sealing spring, a valve plug seat, a valve plug and a valve body, a central channel is provided on the valve body, the valve plug is implemented by a sealing steel ball, and a plurality of circles of sealing lips are provided on the wall of the central channel. After the central water inlet pipe is inserted into the valve body, the sealing lip is used to abut against the central water inlet pipe to achieve sealing, but as shown in the attached Figure 3 As shown in the sealing lip, the sealing lip is triangular and horizontally stretched. During use, the waterproof effect is not ideal and leakage is prone to occur. Therefore, the applicant improves and perfects the existing technology to provide a new solution to the above problem for consumers to choose and use. Summary of the invention

[0003] The utility model aims to provide a multiple waterproof and leakproof coupler with simple and reasonable structure, convenient installation and stable structure.

[0004] A multiple waterproof and leak-proof coupler includes a water inlet valve core, the water inlet valve core includes a water inlet sleeve, a water inlet channel is formed in the water inlet sleeve, a valve core assembly that can connect or seal the water inlet channel is arranged in the water inlet sleeve, the valve core assembly at least includes an elastic sealing sleeve tightly connected to the water inlet port of the water inlet sleeve, and the inner wall surface of the elastic sealing sleeve is extended with more than two annular sealing lips, the more than two annular sealing lips are arranged at intervals up and down, and are stretched upward along the water inlet direction of the water inlet channel.

[0005] The purpose of the utility model can also be solved by the following technical measures:

[0006] As a more specific solution, the more than two annular sealing lips include at least one first sealing lip and one second sealing lip, the second sealing lip is arranged on the upper side of the first sealing lip, and the stretching length of the second sealing lip is greater than the stretching length of the first sealing lip.

[0007] As a further solution, the stretching angle of the second sealing lip is greater than that of the first sealing lip, and the lip diameter of the second sealing lip is smaller than that of the first sealing lip; the thickness of the second sealing lip is smaller than that of the first sealing lip, and the thickness of the second sealing lip is uniform, and the first sealing lip has a structure with a pointed front and a wide rear.

[0008] As a further solution, a valve sleeve is integrally extended from the inner wall surface of the elastic sealing sleeve, and the valve sleeve is arranged on the upper side of the second sealing lip; the valve sleeve includes an upper straight cylinder section and a lower trumpet section, the thickness of the lower trumpet section is thicker on the upper part and thinner on the lower part, the upper straight cylinder section extends out from the top of the elastic sealing sleeve and is provided with a central channel therein, and the upper part of the central channel is provided with a sealing end surface that is connected to or seals the central channel.

[0009] As a further solution, the water inlet valve core also includes a first spring, a steel ball seat and a sealing steel ball arranged in sequence;

[0010] A spring bracket is provided at the water outlet port of the water inlet sleeve, and the first spring is against between the spring bracket and the steel ball seat;

[0011] The steel ball seat is slidably connected in the water inlet sleeve and forms a clearance fit with the water inlet sleeve. The bottom surface of the steel ball seat is provided with an upper arc groove adapted to the shape of the sealing steel ball;

[0012] The upper half of the sealing steel ball is held in the upper arc groove, and the lower half of the sealing steel ball is movably held on the sealing end surface, and the sealing end surface is an arc-shaped structure.

[0013] As a further solution, a water outlet cover is connected to the top of the water inlet sleeve, the water outlet cover is at least partially higher than the water outlet port of the water inlet sleeve, and a plurality of water outlet holes are circumferentially opened on the side wall of the higher portion.

[0014] As a further solution, a water baffle is arranged inside the water outlet cover, and the water baffle is covered with multiple water spray holes with a diameter smaller than the water outlet hole; the raised part of the water outlet cover is in a truncated cone structure and forms an inclined inner wall surface, and the water baffle is limited between the water outlet hole and the water outlet port by the inclined inner wall surface.

[0015] As a further solution, a coupling upper seat is also included, the top of the coupling upper seat is provided with a conductive switch and a metal heat-conducting plate is fixedly connected, the metal heat-conducting plate is provided with an anti-dry-burning structure for turning on and off the conductive switch, a central assembly channel is penetrated between the metal heat-conducting plate and the coupling upper seat, and the water inlet valve core is tightly fitted in the central assembly channel.

[0016] As a further solution, it also includes a coupling lower seat movably coupled to the coupling upper seat, wherein a central through hole is opened in the coupling lower seat, a water inlet pipe is elastically installed in the central through hole through a second spring, the upper end of the water inlet pipe is inserted in the elastic sealing sleeve, and the lower end of the water inlet pipe is provided with a hose anti-detachment structure.

[0017] As a further solution, the hose anti-drop structure includes a plurality of convex rings, which are arranged on the outer wall of the water inlet pipe in a front-to-back manner, and the outer wall of each convex ring is arranged to be inclined downward.

[0018] The beneficial effects of the utility model are as follows:

[0019] The utility model discloses a multiple waterproof and leakproof coupler. The annular sealing lip of the elastic sealing sleeve in the coupler can be extended along the insertion direction of the water inlet pipe, so that the annular sealing lip can better fit the outer wall of the water inlet pipe. In combination with the increase in the number of the annular sealing lips, the contact area between the annular sealing lips and the outer wall of the water inlet pipe can be increased, thereby improving the waterproof and leakproof effects of the water inlet valve core and greatly improving the safety of the coupler. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of an embodiment of the utility model.

[0021] Figure 2 and Figure 3 It is a schematic diagram of the cross-sectional structure of the elastic sealing sleeve in the utility model.

[0022] Figure 4 It is a schematic diagram of the exploded structure of the water inlet valve core in the utility model.

[0023] Figure 5 It is a schematic diagram of the exploded structure of the coupling upper seat and the coupling lower seat in the utility model.

[0024] Figure 6 It is a schematic diagram of the anti-drop structure of the hose in the utility model. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0026] like Figures 1 to 6 As shown, a multiple waterproof and leak-proof coupler includes a water inlet valve core 1, the water inlet valve core 1 includes a water inlet sleeve 3, the water inlet sleeve 3 forms a water inlet channel 101, the water inlet sleeve 3 is provided with a valve core assembly that can connect or seal the water inlet channel 101, the valve core assembly at least includes an elastic sealing sleeve 2 tightly connected to the water inlet port of the water inlet sleeve 3, the inner wall surface of the elastic sealing sleeve 2 extends with a second sealing lip 21 and two first sealing lips 22, the second sealing lip 21 is arranged on the upper side of the two first sealing lips 22 and is arranged with an upper and lower interval, and is stretched upward along the water inlet direction of the water inlet channel 101, and the stretching length of the second sealing lip 21 is greater than the stretching length of the first sealing lip 22.

[0027] The annular sealing lip of the elastic sealing sleeve 2 in this coupler can be extended along the insertion direction of the water inlet pipe 113, so that the annular sealing lip can better fit the outer wall of the water inlet pipe 113. In combination with the increase in the number of annular sealing lips, the contact area between the annular sealing lip and the outer wall of the water inlet pipe 113 can be increased, thereby improving the waterproof and leak-proof effects of the water inlet valve core 1 and greatly improving the safety of the coupler.

[0028] The stretching angle A1 of the second sealing lip 21 is greater than the stretching angle A2 of the first sealing lip 22, and the lip diameter R1 of the second sealing lip 21 is smaller than the lip diameter R2 of the first sealing lip 22. When in use, the first sealing lip 22 with a larger lip diameter can allow the water inlet pipe 113 to pass directly, while the second sealing lip 21 with a smaller lip diameter can be held against the top of the water inlet pipe 113, so that two seals on the outer wall of the water inlet pipe 113 and one seal on the top can achieve multiple waterproof and leakproof.

[0029] The thickness of the second sealing lip 21 is less than that of the first sealing lip 22. The thickness of the second sealing lip 21 is uniform. The first sealing lip 22 has a structure with a pointed front and a wide rear. The second sealing lip 21 of this structure is softer than the first sealing lip 22, so that the second sealing lip 21 has a larger area to fit the outer wall of the water inlet pipe 113, thereby improving the sealing effect.

[0030] A valve sleeve 23 is integrally extended from the inner wall surface of the elastic sealing sleeve 2, and the valve sleeve 23 is arranged on the upper side of the second sealing lip 21; the valve sleeve 23 includes an upper straight section 231 and a lower trumpet section 232, and the thickness of the lower trumpet section 232 is thicker at the top and thinner at the bottom. The upper straight section 231 extends out from the elastic sealing sleeve 2 and is provided with a center channel 233. The upper part of the center channel 233 is provided with a sealing end face 234 that connects to or seals the center channel 233.

[0031] Specifically, the water inlet valve core 1 further includes a first spring 4, a steel ball seat 5 and a sealing steel ball 6 arranged in sequence;

[0032] The water outlet port of the water inlet sleeve 3 is provided with a spring bracket 7, the first spring 4 is against the spring bracket 7 and the ball seat 5, using the elastic potential energy of the first spring 4, so that the water inlet channel 101 can be automatically sealed;

[0033] The steel ball seat 5 is slidably connected in the water inlet sleeve 3 and forms a clearance fit with the water inlet sleeve 3. The bottom surface of the steel ball seat 5 is provided with an upper arc groove 51 adapted to the shape of the sealing steel ball 6, so that water can flow into the water outlet port through the gap between the steel ball seat 5 and the water inlet sleeve 3.

[0034] The upper half of the sealing steel ball 6 is abutted in the upper arc groove 51, and the lower half of the sealing steel ball 6 is movably abutted on the sealing end surface 234, and the sealing end surface 234 is an arc-shaped structure; the sealing steel ball 6 is abutted against or separated from the sealing end surface 234, thereby achieving connection or sealing of the water inlet channel 101.

[0035] A water outlet cover 8 is connected to the top of the water inlet sleeve 3. The water outlet cover 8 is at least partially higher than the water outlet port of the water inlet sleeve 3, and a plurality of water outlet holes 81 are circumferentially opened on the side wall of the higher part of the water outlet cover 8; the lateral water outlet holes 81 prevent the water column from spraying directly upward out of the kettle mouth.

[0036] A water baffle plate 9 is arranged inside the water outlet cover 8, and the water baffle plate 9 is covered with multiple water spray holes 91 with a diameter smaller than the water outlet hole 81; the raised part of the water outlet cover 8 is in a truncated cone structure and forms an inclined inner wall surface, and the water baffle plate 9 is limited between the water outlet hole 81 and the water outlet port by the inclined inner wall surface; the water baffle plate 9 can reduce the speed of the water flow, so that the water can flow out slowly through the water outlet hole 81, and avoid the water from being sprayed out in the form of a water column under high pressure.

[0037] It also includes a coupling upper seat 10, on the top of which a conductive switch 1001 (mainly composed of a moving contact piece and a fixed contact piece) and a metal heat-conducting plate 1002 are fixedly connected, and the metal heat-conducting plate 1002 is provided with an anti-dry-burning structure 1003 (mainly composed of a bimetallic strip and an insulating rod) for turning on and off the conductive switch 1001, and a central assembly channel 1004 is penetrated between the metal heat-conducting plate 1002 and the coupling upper seat 10 (a through hole is respectively provided on the metal heat-conducting plate 1002 and the coupling upper seat 10, and the central assembly channel 1004 is formed between the upper and lower through holes), and the water inlet valve core 1 is tightly fitted in the central assembly channel 1004; it belongs to the prior art and will not be explained here.

[0038] It also includes a coupling lower seat 11 movably coupled to the coupling upper seat 10, a central through hole 111 is opened in the coupling lower seat 11, a water inlet pipe 113 is elastically installed in the central through hole 111 through a second spring 112, the upper end of the water inlet pipe 113 is inserted in the elastic sealing sleeve 2, and the lower end of the water inlet pipe 113 is provided with a hose anti-detachment structure; this belongs to the prior art and will not be explained here.

[0039] The hose anti-detachment structure includes a plurality of convex rings 114, which are connected front to back and arranged on the outer wall of the water inlet pipe 113, and the outer wall of each convex ring 114 is inclined downward; the hose anti-detachment structure of this structure allows the hose to be connected by plug-in, the connection is quick and convenient, and the sealing effect and anti-detachment effect are good, thereby preventing the hose from being detached due to the dragging of the wiring harness.

[0040] The above is a preferred embodiment of the utility model, which shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements fall within the scope of the utility model to be protected, and the scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A multi-layer waterproof and leakproof coupler, comprising a water inlet valve core, wherein the water inlet valve core comprises a water inlet sleeve, wherein the water inlet sleeve forms a water inlet channel, wherein the water inlet sleeve is provided with a valve core assembly capable of connecting or sealing the water inlet channel, wherein the valve core assembly comprises a water inlet sleeve, wherein the water inlet sleeve comprises a water inlet sleeve, wherein the water inlet sleeve comprises a water inlet valve core assembly capable of connecting or sealing the water inlet channel, wherein the water inlet valve core assembly comprises a water inlet sleeve ... The valve core assembly at least includes an elastic sealing sleeve tightly connected to the water inlet port of the water inlet sleeve, and the inner wall surface of the elastic sealing sleeve is extended with more than two annular sealing lips, which are arranged at intervals up and down and are stretched upward along the water inlet direction of the water inlet channel.

2. A multiple waterproof and leakproof coupler according to claim 1, characterized in that: The two or more annular sealing lips include at least one or more first sealing lips and one second sealing lip. The second sealing lip is arranged on the upper side of the first sealing lip, and the stretching length of the second sealing lip is greater than the stretching length of the first sealing lip.

3. A multiple waterproof and leakproof coupler according to claim 2, characterized in that: The stretching angle of the second sealing lip is greater than that of the first sealing lip, and the lip diameter of the second sealing lip is smaller than that of the first sealing lip; the thickness of the second sealing lip is smaller than that of the first sealing lip, and the thickness of the second sealing lip is uniform, and the first sealing lip has a structure with a pointed front and a wide rear.

4. A multiple waterproof and leakproof coupler according to claim 2, characterized in that : A valve sleeve is integrally extended from the inner wall surface of the elastic sealing sleeve, and the valve sleeve is arranged on the upper side of the second sealing lip; the valve sleeve includes an upper straight section and a lower trumpet section, the thickness of the lower trumpet section is thicker on the upper part and thinner on the lower part, the upper straight section extends out from the elastic sealing sleeve and is provided with a central channel therein, and the upper part of the central channel is provided with a sealing end surface that connects to or seals the central channel.

5. A multiple waterproof and leakproof coupler according to claim 1, characterized in that : The water inlet valve core also includes a first spring, a steel ball seat and a sealing steel ball arranged in sequence; A spring bracket is provided at the water outlet port of the water inlet sleeve, and the first spring is against between the spring bracket and the steel ball seat; The steel ball seat is slidably connected in the water inlet sleeve and forms a clearance fit with the water inlet sleeve. The bottom surface of the steel ball seat is provided with an upper arc groove adapted to the shape of the sealing steel ball; The upper half of the sealing steel ball is held in the upper arc groove, and the lower half of the sealing steel ball is movably held on the sealing end surface, and the sealing end surface is an arc-shaped structure.

6. A multiple waterproof and leakproof coupler according to claim 1, characterized in that : The top of the water inlet sleeve is connected to a water outlet cover, and the water outlet cover is at least partially higher than the water outlet port of the water inlet sleeve, and the water outlet cover is circumferentially provided with a plurality of water outlet holes on the side wall of the higher portion.

7. A multiple waterproof and leakproof coupler according to claim 6, characterized in that : A water baffle is arranged inside the water outlet cover, and the water baffle is covered with multiple water spray holes with a diameter smaller than the water outlet hole; the raised part of the water outlet cover is in a truncated cone structure and forms an inclined inner wall surface, and the water baffle is limited between the water outlet hole and the water outlet port by the inclined inner wall surface.

8. The multi-waterproof and leakproof coupler according to claim 1, characterized in that: It also includes a coupling upper seat, the top of which is provided with a conductive switch and a metal heat-conducting plate fixedly connected thereto, the metal heat-conducting plate is provided with an anti-dry-burning structure for turning on and off the conductive switch, a central assembly channel is provided through-through between the metal heat-conducting plate and the coupling upper seat, and the water inlet valve core is tightly fitted in the central assembly channel.

9. A multiple waterproof and leakproof coupler according to claim 8, characterized in that : It also includes a coupling lower seat movably coupled to the coupling upper seat, a central through hole is opened in the coupling lower seat, a water inlet pipe is elastically installed in the central through hole through a second spring, the upper end of the water inlet pipe is inserted in the elastic sealing sleeve, and the lower end of the water inlet pipe is provided with a hose anti-detachment structure.

10. A multiple waterproof and leakproof coupler according to claim 9, characterized in that The hose anti-drop structure includes a plurality of convex rings, which are connected front and back and arranged on the outer wall of the water inlet pipe, and the outer wall of each convex ring is inclined downward.

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