Coupler used for being connected with drinking water type product

Abstract

The utility model relates to a coupler used for being connected with drinking water type products, which comprises a lower coupling seat and a water inlet pipe, a plurality of concentric coupling convex rings with different diameters are arranged on the lower coupling seat, conductive elastic sheets are arranged on the side wall surfaces of the coupling convex rings, an installation channel is arranged in the center of the lower coupling seat, and the installation channel is communicated with the water inlet pipe. The water inlet pipe is connected in the mounting channel, the lower part of the water inlet pipe extends out of the lower side of the lower coupling seat, the lower part of the water inlet pipe comprises a connecting pipe section, the surface of the connecting pipe section is smooth, and the connecting pipe section is detachably connected with a quick connector for the water purifier; according to the coupler, through the design of the water inlet pipe, a universal quick connector of the water purifier can be directly mounted, quick mounting or dismounting is achieved, reliability is high, the coupler is not prone to falling off in the using process, and the pipe explosion situation caused by the fact that the pressure of a water pump is extremely large is avoided.

Description

Technical Field

[0001] This utility model relates to the field of couplers, specifically a coupler for connecting to drinking water products. Background Technology

[0002] The current coupler structure is shown in Chinese patent document, application number 202220490306.X, regarding an inlet / outlet water temperature controller and a drinking water device using the same controller. This includes a lower electrical connector with a central water inlet pipe for connecting to the water source installed inside. When this lower electrical connector is connected to a water purifier, a silicone tube is fitted over the central water inlet pipe and then secured with cable ties. This installation method is cumbersome and difficult to disassemble. Furthermore, the silicone tube is prone to detachment during use, especially under high water pump pressure, leading to the silicone tube connection point coming loose or bursting, causing water to enter electrical components and affecting safety. Therefore, the applicant has improved and perfected the coupler to solve the above problems for consumers to choose from. Utility Model Content

[0003] The purpose of this invention is to solve the aforementioned problems and provide a simple and reasonable coupler for connecting with drinking water products.

[0004] A coupler for connecting to a drinking water product includes a lower coupling seat and a water inlet pipe. The lower coupling seat has several concentric coupling protrusions of different diameters, and conductive springs are provided on the sidewalls of the coupling protrusions. An installation channel is opened in the center of the lower coupling seat, and the water inlet pipe is connected to the installation channel. The lower part of the water inlet pipe extends out of the lower side of the lower coupling seat and includes a connecting pipe section. The surface of the connecting pipe section is smooth, and a quick-connect fitting for a water purifier can be detachably connected to the connecting pipe section.

[0005] The objective of this utility model can also be achieved by the following technical measures:

[0006] As a more specific embodiment, a retaining ring is also formed on the surface of the connecting pipe section.

[0007] As a further embodiment, a spring bearing ring is provided at the bottom port of the installation channel, a spring limiting part is provided at the upper part of the water inlet pipe, and a return spring is provided on the outer sleeve of the water inlet pipe, with the two ends of the return spring abutting between the spring bearing ring and the spring limiting part.

[0008] As a further embodiment, a groove is formed at the lower part of the water inlet pipe, and a C-shaped retaining spring is elastically engaged in the groove. The C-shaped retaining spring is positioned on the lower side of the installation channel, and the connecting pipe section is placed on the lower side of the groove.

[0009] As a further embodiment, the bottom surface of the lower coupling seat extends along the outer periphery of the installation channel with several circumferentially arranged limiting protrusions. The limiting protrusions limit and abut against the top edge of the quick connector. The locking switch in the quick connector is placed inside the limiting protrusions, and the upper side of the locking switch is set in a gap.

[0010] As a further embodiment, the lower part of the water inlet pipe includes a straight pipe section and a connecting pipe section. The bottom end of the straight pipe section is closed, and the connecting pipe section is horizontally connected to the bottom of the straight pipe section. Furthermore, a retaining ring is formed on the surface of the connecting pipe section.

[0011] As a further embodiment, the bottom end of the straight pipe section is provided with a pipe opening, the pipe opening is filled with a sealing block, and a bottom cover for fixing the sealing block is also installed inside the pipe opening.

[0012] As a further embodiment, the spring limiting part includes a locking ring, the inner side of which is provided with a locking structure, and the upper part of the water inlet pipe extends with an inverted protrusion that is fastened and fixed to the locking structure.

[0013] As a further embodiment, the locking structure includes several lower undercut blocks and several upper limit blocks, which are staggered circumferentially; the lower undercut blocks are limited and abutted against the flat bottom surface of the undercut ring, and the upper limit blocks are limited and abutted against the oblique side surface of the undercut ring.

[0014] As a further embodiment, the bottom end of the connecting pipe section is provided with an inlet end face that narrows from top to bottom.

[0015] The beneficial effects of this utility model are as follows:

[0016] This utility model discloses a coupler for connecting with drinking water products. Through the design of the water inlet pipe, this coupler can directly install the quick-connect fittings commonly used in water purifiers, achieving quick installation or disassembly. It is highly reliable, not easy to fall off during use, and avoids pipe bursting due to excessive water pump pressure. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model.

[0018] Figure 2 This is a schematic diagram of the disassembly structure of the connecting pipe section and quick-connect fitting in this utility model.

[0019] Figure 3 This diagram illustrates the engagement state of the limiting protrusion and the quick-connect connector in this utility model. Figure 1 .

[0020] Figure 4 This diagram illustrates the engagement state of the limiting protrusion and the quick-connect connector in this utility model. Figure 2 .

[0021] Figure 5 This is a schematic diagram of the structure of Embodiment 2 of this utility model.

[0022] Figure 6 This is a schematic diagram of the structure of Embodiment 3 of this utility model.

[0023] Figure 7 This is a schematic diagram of the water inlet pipe and locking ring in this utility model. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example 1:

[0025] See Figures 1 to 4 As shown, a coupler for connecting to a drinking water product includes a lower coupling seat 1 and a water inlet pipe 2. The lower coupling seat 1 has several concentric coupling protrusions 3 with different diameters, and conductive springs 4 are provided on the side walls of the coupling protrusions 3. The lower coupling seat 1 has an installation channel 101 in the center, and the water inlet pipe 2 is connected in the installation channel 101. The lower part of the water inlet pipe 2 extends out of the lower coupling seat 1 and includes a connecting pipe section 21. The surface of the connecting pipe section 21 is smooth, and a quick-connect fitting 5 for a water purifier can be detachably connected to the connecting pipe section 21.

[0026] This coupler, through the design of the inlet pipe 2, can directly install the quick-connect fitting 5, which is common to water purifiers, to achieve quick installation or disassembly. It is highly reliable, not easy to fall off during use, and avoids the situation of pipe bursting due to excessive water pump pressure.

[0027] The quick-connect connector 5 is existing technology. Its structure includes a connector body 51, and a locking switch 52 that can move in and out of its insertion port is provided inside the connector body 51. The locking switch 52 has a claw. The principle is as follows: when the connecting pipe section 21 is tightly inserted into the connector body 51 through the insertion port, the connector body 51 is pulled in the opposite direction to the connecting pipe section 21, so that the connecting pipe section 21 is pulled out of the locking switch 52. At this time, the claw clamps the wall of the connecting pipe section 21, thereby realizing the connection between the connecting pipe section 21 and the quick-connect connector 5. When disassembling the quick-connect connector 5, the locking switch 52 needs to be pressed back into the connector body 51 to release the claw from the connecting pipe section 21.

[0028] The surface of the connecting pipe section 21 is also provided with a retaining ring 211; the quick connector 5 is provided with claws and a sealing ring inside. After the connecting pipe section 21 is inserted into the quick connector 5, the claws lock the pipe wall at the position of the retaining ring 211, and the sealing ring seals, making installation convenient and improving the effect of preventing loosening and leakage.

[0029] The bottom port of the installation channel 101 is provided with a spring bearing ring 102, the upper part of the water inlet pipe 2 is provided with a spring limiting part 27, and a return spring is provided on the outer sleeve of the water inlet pipe 2. The two ends of the return spring abut against the spring bearing ring 102 and the spring limiting part 27; the return spring enables the water inlet pipe 2 to achieve up and down elastic movement.

[0030] When the quick-connector 5 is connected to the connecting pipe section 21 in the above manner, under the action of the return spring, the water inlet pipe 2 will simultaneously drive the quick-connector 5 to return upward, causing the locking switch 52 of the quick-connector 5 to collide with the bottom surface of the lower coupling seat 1. This may cause the locking switch 52 to be pressed into the connector body 51, resulting in the claws releasing the connecting pipe section 21. When the silicone tube is pulled downward, the quick-connector 5 may become loose from the connecting pipe section 21.

[0031] Therefore, in combination with the structure and principle of the quick connector 5, correspondingly, the bottom surface of the lower coupling seat 1 extends along the outer periphery of the mounting channel 101 with a number of circumferentially arranged limiting protrusions 103, and the number of limiting protrusions 103 limit and abut against the top edge of the quick connector 5. The locking switch 52 in the quick connector 5 is placed inside the limiting protrusions 103, and the upper side of the locking switch 52 is set in a gap.

[0032] See Figure 3 As shown, the limiting protrusion 103 abuts against the top surface of the connector body 51, thereby restricting the quick-connect connector 5 from being elastically pulled up by the water inlet pipe 2, keeping the locking switch 52 at a distance from the bottom surface of the coupling seat, ensuring that the locking switch 52 will not be pressed in, so that the claws therein firmly clamp the wall of the connecting pipe section 21, making it difficult to loosen; when the quick-connect connector 5 needs to be removed from the connecting pipe section 21, the quick-connect connector 5 or the silicone tube can be pulled down, causing the water inlet pipe 2 to compress the reset spring and slide down synchronously, thereby exposing the locking switch 52 under the limiting protrusion 103 (see Figure 4 (As shown), finally operate the locking switch 52 to press it into the connector body 51 to achieve the loosening effect.

[0033] The bottom end of the connecting pipe section 21 is provided with an inlet end face 212 that narrows from top to bottom; the inlet end face 212 allows the connecting pipe section 21 to be quickly inserted into the quick connector 5, thereby improving installation efficiency. Example 2:

[0034] The difference between Embodiment 2 and Embodiment 1 is that this embodiment does not have a limiting protrusion 103 to limit the water inlet pipe 2. Therefore, the method used is as follows: See Figure 5As shown, a groove 22 is formed at the lower part of the water inlet pipe 2. A C-shaped retaining spring 6 is elastically engaged in the groove 22. The C-shaped retaining spring 6 is positioned on the lower side of the installation channel 101. The connecting pipe section 21 is placed on the lower side of the groove 22. The C-shaped retaining spring 6 is engaged at the lower part of the water inlet pipe 2 and located on the lower side of the installation channel 101 (i.e., on the lower side of the spring bearing ring 102), thereby limiting the height of the water inlet pipe 2's upward rebound. Example 3:

[0035] Example 3 differs from Example 1 in that: See Figure 6 and Figure 7 As shown, the lower part of the water inlet pipe 2 includes a straight pipe section 23 and a connecting pipe section 21. The bottom end of the straight pipe section 23 is closed, and the connecting pipe section 21 is horizontally connected to the bottom of the straight pipe section 23. Furthermore, a snap-fit ​​recessed ring 211 is formed on the surface of the connecting pipe section 21. The water inlet pipe 2 with this structure can directly achieve reversal, allowing the quick-connect fitting 5 to be installed on the side of the water inlet pipe 2, thereby reducing the thickness of the installed equipment.

[0036] The bottom end of the straight pipe section 23 is provided with a pipe opening 231, and a sealing block 24 is filled in the pipe opening 231. A bottom cover 25 for fixing the sealing block 24 is also installed in the pipe opening 231. The water inlet pipe 2 of this structure can be easily demolded, and the bottom cover 25 can be fixed in the pipe opening 231 by glue or laser welding.

[0037] The spring limiting part 27 includes a locking ring 7, the inner side of which is provided with a locking structure, and the upper part of the water inlet pipe 2 extends with an inverted protrusion 26 that is fastened and fixed to the locking structure.

[0038] In the above structure, the upper diameter of the water inlet pipe 2 is smaller than the lower diameter. The water inlet pipe 2 can only be inserted into the installation channel 101 from bottom to top. Therefore, the spring limiting part 27 cannot be integrally formed on the water inlet pipe 2 to avoid interference between the spring limiting part 27 and the spring bearing ring 102 during insertion. The locking ring 7 can be fixed on the water inlet pipe 2 after it is inserted, and also serves the function of the spring limiting part 27.

[0039] Specifically, the locking structure includes several lower undercut blocks 71 and several upper limit blocks 72, which are staggered circumferentially. The lower undercut blocks 71 are limited and abutted against the flat bottom surface of the undercut ring 26, and the upper limit blocks 72 are limited and abutted against the oblique side surface of the undercut ring 26. The lower undercut blocks 71 can prevent the locking ring 7 from being pushed out by the reset spring, while the upper limit blocks 72 can prevent the locking ring 7 from being pressed into the bottom of the water inlet pipe 2, so that the locking ring 7 is just locked in the upper part of the water inlet pipe 2.

[0040] 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 coupler for connecting to a drinking water product, comprising a lower coupling seat and a water inlet pipe, wherein the lower coupling seat has several concentric coupling protrusions of different diameters, and conductive springs are provided on the sidewalls of the coupling protrusions; an installation channel is formed in the center of the lower coupling seat, and the water inlet pipe is connected to the installation channel; characterized in that: The lower part of the water inlet pipe extends out from the lower coupling seat and includes a connecting pipe section. The surface of the connecting pipe section is smooth, and a quick-connect fitting can be detachably connected to the connecting pipe section.

2. A coupler for connecting to a drinking water product according to claim 1, characterized in that: The surface of the connecting pipe section is also provided with a retaining ring.

3. A coupler for connecting to a drinking water product according to claim 1, characterized in that: A spring bearing ring is provided at the bottom port of the installation channel, a spring limiting part is provided at the upper part of the water inlet pipe, and a return spring is provided on the outer sleeve of the water inlet pipe. The two ends of the return spring abut against the spring bearing ring and the spring limiting part.

4. A coupler for connecting to a drinking water product according to claim 3, characterized in that: A groove is formed at the bottom of the water inlet pipe, and a C-shaped retaining spring is elastically engaged in the groove. The C-shaped retaining spring is positioned on the lower side of the installation channel, and the connecting pipe section is placed on the lower side of the groove.

5. A coupler for connecting to a drinking water product according to any one of claims 1-3, characterized in that: The bottom surface of the lower coupling seat extends along the outer periphery of the installation channel with several circumferentially arranged limiting protrusions. These limiting protrusions limit and abut against the top edge of the quick connector. The locking switch in the quick connector is placed inside the limiting protrusions, and the upper side of the locking switch is set in a gap.

6. A coupler for connecting to a drinking water product according to claim 1, characterized in that: The lower part of the water inlet pipe includes a straight pipe section and a connecting pipe section. The bottom end of the straight pipe section is closed, and the connecting pipe section is horizontally connected to the bottom of the straight pipe section. Furthermore, a retaining ring is formed on the surface of the connecting pipe section.

7. A coupler for connecting to a drinking water product according to claim 6, characterized in that: The bottom end of the straight pipe section is provided with a pipe opening, the pipe opening is filled with a sealing block, and a bottom cover for fixing the sealing block is also installed inside the pipe opening.

8. A coupler for connecting to a drinking water product according to claim 7, characterized in that: The spring limiting part includes a locking ring, the inner side of which is provided with a locking structure, and the upper part of the water inlet pipe extends with an inverted protrusion that is fastened and fixed to the locking structure.

9. A coupler for connecting to a drinking water product according to claim 8, characterized in that: The locking structure includes several lower undercut blocks and several upper limit blocks, which are staggered circumferentially. The lower undercut blocks are limited and abutted against the flat bottom surface of the undercut ring, and the upper limit blocks are limited and abutted against the oblique side surface of the undercut ring.

10. A coupler for connecting to a drinking water product according to claim 1, characterized in that: The bottom end of the connecting pipe section is provided with an inlet end face that narrows from top to bottom.

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