Water purification equipment

Abstract

The utility model belongs to the technical field of household appliances, and discloses water purification equipment. The water purification equipment comprises an equipment main body, a sealing ring and a connecting pipe, wherein a pipe connector is arranged on the equipment main body; the sealing ring is arranged in the pipe connector; the connecting pipe comprises an outer pipe and a supporting sleeve, one end of the outer pipe extends into the pipe connector, the sealing ring is clamped between the pipe connector and the outer pipe, the supporting sleeve is located in the outer pipe, and at least part of the supporting sleeve is located in the pipe connector and corresponds to the sealing ring. The outer pipe is supported by the supporting sleeve from the inner side, the strength of the outer pipe can be improved, and change of the shape of the cross section when the outer pipe is stressed or bent is reduced or even avoided, so that the attaching effect of the outer wall of the outer pipe and the sealing ring is guaranteed, the sealing effect is guaranteed, and water leakage caused by sealing failure is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a water purification device. Background Art

[0002] As people's requirements for water quality increase, the number of under-sink water purifiers is increasing. While bringing convenience, water leakage from water purifiers is also receiving increasing attention. Especially since the space under the kitchen is narrow and there are many blind spots, if leakage is not discovered in time, it will cause large unnecessary property losses.

[0003] Currently, if Figure 1 As shown, under-sink water purifiers typically use a PE tube or similar hose as a connecting pipe 10 to connect the water inlet and outlet pipes and the under-sink piping. The PE tube or hose is sealed with the pipe interface 21 by a sealing ring. Due to the limited space under the kitchen and the limited field of view, the connecting pipe 10 near the pipe interface 21 may be squeezed or bent, causing the cross-section of the connecting pipe 10 to change from a circular shape to a nearly elliptical shape. This can lead to a poor seal with the sealing ring and cause water leakage. Utility Model Content

[0004] The purpose of the utility model is to provide a water purification device that can solve the problem of poor sealing caused by squeezing or bending of PE pipes and avoid water leakage.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A water purification device, comprising:

[0007] The device body is provided with a pipe interface;

[0008] A sealing ring is arranged in the pipe interface;

[0009] A connecting pipe, the connecting pipe includes an outer pipe and a supporting sleeve, one end of the outer pipe extends into the pipe interface, the sealing ring is clamped between the pipe interface and the outer pipe, the supporting sleeve is located in the outer pipe, and at least part of the supporting sleeve is located in the pipe interface and is arranged corresponding to the sealing ring.

[0010] As an optional solution of the above-mentioned water purification equipment, the support sleeve includes:

[0011] a sleeve body, the sleeve body being disposed inside the outer tube;

[0012] The first flange is connected to one axial end of the sleeve body, extends radially toward the outside of the sleeve body, is located outside the outer tube, and can abut against the end surface of the outer tube.

[0013] As an optional solution for the above-mentioned water purification equipment, the end of the sleeve body away from the first flange is a guide end, and the outer diameter of the guide end gradually decreases in the direction away from the first flange.

[0014] As an optional solution of the above-mentioned water purification equipment, the outer diameter of the first flange is smaller than or equal to the outer diameter of the outer tube.

[0015] As an optional solution for the above-mentioned water purification equipment, the support sleeve and the outer tube are interference fit.

[0016] As an optional solution of the above-mentioned water purification equipment, the length of the support sleeve extending out of the pipe interface is 3mm-10mm;

[0017] And / or, the wall thickness of the support sleeve is 0.2mm-0.4mm;

[0018] And / or, the outer tube is made of plastic, and the supporting sleeve is made of metal.

[0019] As an optional solution of the above-mentioned water purification equipment, a first clamping piece is fixed to the outside of the connecting pipe, and a second clamping piece is provided in the pipe interface, and the first clamping piece is clamped and matched with the second clamping piece.

[0020] As an optional solution of the above-mentioned water purification equipment, the first clamping member includes:

[0021] A sleeve is sleeved outside the connecting pipe and has an interference fit with the connecting pipe;

[0022] a second flange connected to one axial end of the sleeve and extending radially from the sleeve toward the outside of the sleeve, wherein the second flange can abut against the second clamping member;

[0023] The clamping portion is connected to the other axial end of the sleeve, and the clamping portion is used to be clamped with the second clamping piece.

[0024] As an optional solution of the above-mentioned water purification equipment, the second clamping member is interference-fitted with the pipe interface.

[0025] As an optional solution for the above-mentioned water purification equipment, the pipe interface includes a first hole section, a second hole section and a third hole section which are connected in sequence from the outside to the inside, the inner diameters of the first hole section, the second hole section and the third hole section decrease in sequence, the second clamping part is located in the first hole section, the sealing ring is located in the second hole section, and at least part of the connecting pipe is located in the third hole section.

[0026] Beneficial effects of the utility model:

[0027] In the water purification equipment provided by the present invention, the support sleeve supports the outer tube from the inner side, which can improve the strength of the outer tube, reduce or even avoid changes in the cross-sectional shape of the outer tube when it is subjected to force or bent, thereby ensuring the fit between the outer wall of the outer tube and the sealing ring, and further ensuring the sealing effect, and avoiding water leakage due to sealing failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the structure in which the sealing of the existing connecting pipe fails due to compression or bending;

[0029] Figure 2 This is a partial structural diagram of the water purification equipment provided by the utility model;

[0030] Figure 3 It is a structural schematic diagram of the support sleeve provided by the utility model.

[0031] In the picture:

[0032] 10. Connecting pipe; 11. Outer pipe; 12. Support sleeve; 121. Sleeve body; 1211. Guide end; 122. First flange; 20. Equipment body; 21. Pipe interface; 30. Sealing ring; 41. First clamping part; 42. Second clamping part. DETAILED DESCRIPTION

[0033] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0034] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0035] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0036] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0037] This embodiment provides a water purification device having a water purification function, wherein the water purification device may be an under-sink water purifier.

[0038] like Figure 2 As shown, the water purification device includes a device body 20, a connecting pipe 10, and a sealing ring 30. The device body 20 is provided with a pipe interface 21, which is connected to the waterway within the device body 20 to achieve water outflow or inflow. One end of the connecting pipe 10 is connected to the pipe interface 21, and the other end is connected to the waterway outside the water purification device. The sealing ring 30 is arranged inside the pipe interface 21 and is sleeved on the outside of the connecting pipe 10. The outer wall of the connecting pipe 10 and the inner wall of the pipe interface 21 cooperate to squeeze the sealing ring 30, thereby achieving a seal at the interface between the pipe interface 21 and the connecting pipe 10 to prevent water leakage.

[0039] To prevent deformation of the connecting tube 10 due to compression or bending, which could lead to seal failure, in this embodiment, the connecting tube 10 includes an outer tube 11 and a support sleeve 12. One end of the outer tube 11 extends into the tube interface 21. The support sleeve 12 is located within the outer tube 11, with at least a portion of the support sleeve 12 located within the tube interface 21 and corresponding to the sealing ring 30. The support sleeve 12 supports the outer tube 11 from the inside, thereby increasing the strength of the outer tube 11 and reducing or even preventing changes in the cross-sectional shape of the outer tube 11 when it is subjected to force or bent. This ensures the fit between the outer wall of the outer tube 11 and the sealing ring 30, thereby ensuring a good seal and preventing water leakage due to seal failure.

[0040] In order to improve the supporting effect on the outer tube 11 , in some embodiments, the supporting sleeve 12 may be made of a metal material, so that the supporting sleeve 12 has better strength and can improve the supporting effect on the outer tube 11 .

[0041] For example, the support sleeve 12 may be made of stainless steel to prevent the support sleeve 12 from being corroded and damaged due to long-term contact with water, thereby increasing the service life of the support sleeve 12 .

[0042] In order to facilitate the bending of the connecting pipe 10 to adapt to the installation environment, the outer pipe 11 can be made of plastic material so that the outer pipe 11 can be bent according to actual needs to facilitate connection with the external water channel.

[0043] Exemplarily, the outer tube 11 may be made of polyethylene (PE). PE is non-toxic, has excellent low-temperature resistance, and good chemical stability, and can meet usage requirements.

[0044] In some embodiments, the outer tube 11 may be a hose to better adapt to the installation environment and facilitate the outer tube 11 to bend and extend according to actual needs.

[0045] In order to simplify the structure of the connecting pipe 10 and facilitate the cooperation between the support sleeve 12 and the outer pipe 11, the support sleeve 12 can be inserted into the outer pipe 11 from one end of the outer pipe 11 and fixed by the interference fit between the outer pipe 11 and the support sleeve 12. It is easy to assemble and does not require an additional fixing structure, which is conducive to ensuring the sealing of the connecting pipe 10.

[0046] In order to improve the stability of the outer tube 11 and the support sleeve 12, as Figure 3 As shown, the support sleeve 12 includes a sleeve body 121 and a first flange 122. The sleeve body 121 is inserted into the outer tube 11 and has an interference fit with the outer tube 11. The first flange 122 is connected to one axial end of the sleeve body 121. The first flange 122 extends radially toward the outside of the sleeve body 121. The first flange 122 is located outside the outer tube 11 and can abut against the end face of the outer tube 11. The provision of the first flange 122 enables axial positioning of the outer tube 11 and the support sleeve 12, facilitating the fixing of the support sleeve 12 to one end of the insertion tube interface 21 of the outer tube 11, thereby ensuring that the support sleeve 12 is provided in the position of the outer tube 11 that cooperates with the sealing ring 30, thereby ensuring the sealing effect of the sealing ring 30.

[0047] In addition, by providing the first flange 122 , it is convenient to apply external force to the first flange 122 to pull the support sleeve 12 out of the outer tube 11 , so that only the outer tube 11 can be replaced after the outer tube 11 is damaged, thereby reducing maintenance costs.

[0048] In order to prevent the support sleeve 12 from interfering with the assembly of the outer tube 11 , in some embodiments, the outer diameter of the first flange 122 is less than or equal to the outer diameter of the outer tube 11 to prevent the first flange 122 from protruding from the outer tube 11 and interfering with the tube interface 21 , thereby affecting the assembly of the connecting tube 10 .

[0049] Exemplarily, the outer diameter of the first flange 122 may be smaller than the outer diameter of the outer tube 11 , and the difference between the outer diameters of the first flange 122 and the outer tube 11 may be 0.2-0.4 times the thickness of the outer tube 11 .

[0050] To facilitate assembly of the support sleeve 12 with the outer tube 11, in some embodiments, the end of the sleeve body 121 away from the first flange 122 is a guide end 1211, and the outer diameter of the guide end 1211 gradually decreases in the direction away from the first flange 122. In other words, the guide end 1211 of the sleeve body 121 is configured as a closed structure to facilitate insertion into the outer tube 11.

[0051] In some embodiments, the length of the guide end 1211 can be 0.02-0.3 times the length of the sleeve body 121, so as to ensure the contact area between the support sleeve 12 and the outer tube 11 on the basis of convenient assembly, improve the support effect on the outer tube 11, and avoid sealing failure.

[0052] In order to ensure the sealing effect between the connecting pipe 10 and the connecting pipe port, the length of the support sleeve 12 extending from the pipe interface 21 is 3mm-10mm, so as to ensure that the part of the outer tube 11 located outside the connecting pipe port can be supported by the support sleeve 12, thereby avoiding the outer tube 11 bending at a position close to the connecting pipe port and affecting the sealing effect.

[0053] Exemplarily, the length of the support sleeve 12 extending from the pipe interface 21 is 4 mm, 5 mm, 6 mm, 7 mm, 8 mm or 9 mm.

[0054] In order to avoid affecting the water flow due to the support sleeve 12, the support sleeve 12 can be a thin-walled structure to reduce the space occupied by the support sleeve 12 in the outer tube 11 to ensure the effective flow area in the outer tube 11, thereby ensuring the water flow.

[0055] Illustratively, the wall thickness D of the support sleeve 12 may be 0.2 mm-0.4 mm, such as 0.2 mm, 0.22 mm, 0.24 mm, 0.25 mm, 0.26 mm, 0.28 mm, 0.3 mm, 0.32 mm, 0.34 mm, 0.35 mm, 0.36 mm, 0.38 mm, or 0.4 mm.

[0056] In order to prevent the connecting tube 10 from falling out of the pipe interface 21, a first clamping member 41 is fixed to the outside of the connecting tube 10, and a second clamping member 42 is provided inside the pipe interface 21. The first clamping member 41 and the second clamping member 42 are engaged with each other to fix the connecting tube 10 and the pipe interface 21 to prevent the connecting tube 10 from being pulled and disengaged from the pipe interface 21.

[0057] like Figure 2 As shown, the first clamping member 41 includes a sleeve, a second flange and a clamping portion. The sleeve is sleeved on the outside of the connecting tube 10 and has an interference fit with the connecting tube 10 to avoid axial movement along the connecting tube 10; the second flange is connected to one axial end of the sleeve and extends radially toward the outside of the sleeve from the sleeve. The second flange is located on the outside of the pipe interface 21 and can abut against the second clamping member 42 to limit the length of the connecting tube 10 extending into the pipe interface 21, thereby improving the positional accuracy of the connecting tube 10 and the equipment body 20; the clamping portion is connected to the other axial end of the sleeve, and the clamping portion is passed through the pipe interface 21 for clamping and fitting with the second clamping portion to limit the connection tube 10 from being separated from the pipe interface 21.

[0058] In some embodiments, the sleeve, the second flange and the clamping portion can be integrally formed to improve the stability of the first clamping member 41 and reduce the number of parts.

[0059] In some embodiments, the first clamping member 41 may be made of metal material. Metal has good strength and long service life, which is conducive to improving the clamping effect.

[0060] In some embodiments, the second clamping portion is an annular structure, which is fixed in the pipe interface 21 to facilitate the passage of the connecting pipe 10 and the first clamping portion, thereby avoiding affecting the fit between the connecting pipe 10 and the pipe interface 21 .

[0061] In some embodiments, the clamping portion is a first clamping protrusion, and the inner wall of the second clamping portion can be provided with a second clamping protrusion, and the second clamping protrusion is located on the side of the first clamping protrusion facing the outside of the pipe interface 21, so that when the connecting tube 10 is subjected to a pulling force, the first clamping protrusion can abut against the second clamping protrusion, thereby preventing the connecting tube 10 from falling out of the pipe interface 21.

[0062] To facilitate the fixation of the second clamping member 42 and the pipe interface 21 , the second clamping member 42 may be interference-fitted into the pipe interface 21 to simplify the structure.

[0063] In some embodiments, the pipe interface 21 includes a first hole section, a second hole section and a third hole section that are connected in sequence from the outside to the inside, and the inner diameters of the first hole section, the second hole section and the third hole section decrease in sequence. The second clamping member 42 is located in the first hole section, the sealing ring 30 is located in the second hole section, and at least part of the connecting pipe 10 is located in the third hole section to facilitate the assembly and positioning of the connecting pipe 10, the sealing ring 30, the first clamping member 41 and the second clamping member 42.

[0064] In some embodiments, the cross-sectional shape of the sealing ring 30 may be circular, elliptical, U-shaped, or Y-shaped. The cross-sectional shape of the sealing ring 30 may also be two intersecting circles or ellipses, as long as sealing can be achieved.

[0065] In some embodiments, the number of sealing rings 30 can be one, two, three or more, and the specific number can be adjusted according to actual needs.

[0066] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A water purification device, characterized in that: include: A device body (20), wherein a pipe interface (21) is provided on the device body (20); A sealing ring (30) is arranged in the pipe interface (21); A connecting pipe (10), the connecting pipe (10) comprising an outer pipe (11) and a supporting sleeve (12), one end of the outer pipe (11) extending into the pipe interface (21), the sealing ring (30) clamped between the pipe interface (21) and the outer pipe (11), the supporting sleeve (12) located in the outer pipe (11), at least a portion of the supporting sleeve (12) located in the pipe interface (21) and correspondingly arranged with the sealing ring (30).

2. The water purification device according to claim 1, characterized in that: The support sleeve (12) comprises: a sleeve body (121), the sleeve body (121) being disposed inside the outer tube (11); A first flange (122) is connected to one axial end of the sleeve body (121), and the first flange (122) extends radially toward the outside of the sleeve body (121). The first flange (122) is located outside the outer tube (11) and can abut against the end face of the outer tube (11).

3. The water purification device according to claim 2, characterized in that: One end of the sleeve body (121) away from the first flange (122) is a guide end (1211), and the outer diameter of the guide end (1211) gradually decreases in a direction away from the first flange (122).

4. The water purification device according to claim 2, characterized in that: The outer diameter of the first flange (122) is smaller than or equal to the outer diameter of the outer tube (11).

5. The water purification device according to any one of claims 1 to 4, characterized in that: The support sleeve (12) and the outer tube (11) are interference fit.

6. The water purification device according to any one of claims 1 to 4, characterized in that: The length of the support sleeve (12) extending from the pipe interface (21) is 3 mm to 10 mm; and / or, the wall thickness of the support sleeve (12) is 0.2 mm to 0.4 mm; And / or, the outer tube (11) is made of plastic, and the supporting sleeve (12) is made of metal.

7. The water purification device according to any one of claims 1 to 3, characterized in that: A first clamping piece (41) is fixed on the outside of the connecting pipe (10), and a second clamping piece (42) is provided inside the pipe interface (21), and the first clamping piece (41) and the second clamping piece (42) are clamped and matched.

8. The water purification device according to claim 7, characterized in that: The first clamping member (41) comprises: A sleeve, which is sleeved outside the connecting pipe (10) and has an interference fit with the connecting pipe (10); A second flange is connected to one axial end of the sleeve and extends radially from the sleeve toward the outside of the sleeve, and the second flange can abut against the second clamping member (42); The clamping portion is connected to the other axial end of the sleeve, and the clamping portion is used to be clamped with the second clamping member (42).

9. The water purification device according to claim 7, characterized in that: The second clamping member (42) is interference-fitted with the pipe interface (21).

10. The water purification device according to claim 7, characterized in that: The pipe interface (21) comprises a first hole section, a second hole section and a third hole section which are connected in sequence from the outside to the inside, wherein the inner diameters of the first hole section, the second hole section and the third hole section decrease in sequence, the second clamping member (42) is located in the first hole section, the sealing ring (30) is located in the second hole section, and at least part of the connecting pipe (10) is located in the third hole section.

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