CN219868536U - Pipe fitting coupling assembling and electric water heater - Google Patents

Abstract

The utility model discloses a pipe fitting connecting component and an electric water heater, wherein the pipe fitting connecting component comprises an inner container, a flange, a water pipe and a positioning connecting structure, the flange is arranged on a side installation part of the inner container, a water hole is formed in the flange in a penetrating mode, the positioning connecting structure is detachably connected in the water hole, a connecting end of the water pipe is limited and connected in the positioning connecting structure, and the end part, far away from the connecting end, of the water pipe is maintained in an installation state with a fixed orientation through the positioning connecting structure. This pipe fitting coupling assembling adopts location connection structure with water pipe and flange to realize dismantling to be connected for the installation degree of difficulty of other parts on the flange reduces, has alleviated the restricted circumstances of other parts installation, and because the water pipe passes through location connection structure to be connected on the flange makes on the water pipe except that the other tip of link have fixed orientation, can realize intaking or play water steadily.

Description

Pipe fitting coupling assembling and electric water heater

Technical Field

The utility model relates to the technical field of household appliances, in particular to a pipe connecting assembly and an electric water heater.

Background

The electric water heater is the most commonly used household appliance, and according to the material of inner bag, electric water heater's inlet tube and outlet pipe have different mounting means, to the nonmetallic inner bag, the business turn over water pipe generally adopts the mode of side to side. In order to reduce the installation difficulty of the water inlet and outlet pipe, the water inlet and outlet pipe is generally welded on a flange for fixing the heating pipe, and then the flange is fixed on the side wall of the inner container, so that the water inlet and outlet pipe and the heating pipe are fixed.

However, due to the limitation of the diameter of the flange, the installation height of the water inlet and outlet pipe is limited by the installation method, so that insufficiently heated water enters the water outlet pipe and cold water entering from the water inlet pipe is quickly mixed with hot water on the upper layer, thereby leading to unstable water outlet temperature of the electric water heater and poor use experience of users. And, business turn over water pipe and heating pipe are fixed on the flange through the welded mode and are led to the extension length and the structure of heating pipe to be restricted to lead to heating efficiency to drop and lead to the maintenance inconvenient.

Therefore, how to provide an electric water heater capable of overcoming the above-mentioned drawbacks is a technical problem that needs to be solved.

Disclosure of Invention

The first object of the utility model is to provide a pipe fitting connecting assembly, which reduces the difficulty in installing a water pipe on a flange, and ensures that the existence of the water pipe has little limitation on the installation of a heating pipe and is convenient to overhaul.

The second purpose of the utility model is to provide an electric water heater which has the advantages of small installation difficulty, high structural stability, good user experience and convenient maintenance.

To achieve the purpose, the utility model adopts the following technical scheme:

a tubular connection assembly comprising: a liner, one side of which is provided with a side mounting part; the flange is arranged on the side mounting part, and water holes are formed in the flange in a penetrating manner; the water pipe is arranged in the inner cavity of the inner container; the positioning connection structure is detachably connected in the water hole, the connecting end of the water pipe is limited and connected in the positioning connection structure, and the end part, far away from the connecting end, of the water pipe is maintained in a mounting state with a fixed orientation through the positioning connection structure.

Preferably, the water pipe is a water outlet pipe, the water hole is a water outlet hole, and the water outlet end of the water outlet pipe is maintained in an installation state facing the highest point of the inner cavity through the positioning connection structure.

Preferably, the flange is provided with a first positioning ring surface, the first positioning ring surface is arranged around the water outlet hole, and the connecting end of the water outlet pipe is outwards convexly provided with a positioning ring edge along the circumferential direction of the water outlet pipe; the positioning connection structure comprises a first connection pipe, the first connection pipe is arranged in the water outlet in a penetrating mode, a second positioning annular surface in limiting abutting connection with the first positioning annular surface is arranged on the outer wall surface of the first connection pipe, a third positioning annular surface is arranged on the inner wall surface of the first connection pipe, the water outlet pipe penetrates through the first connection pipe to be arranged, and the third positioning annular surface is in limiting abutting connection with the positioning annular edge.

Preferably, one of the first connecting pipe and the flange is provided with a limiting clamping protrusion, and the other one is provided with a limiting clamping groove, and the limiting clamping protrusion is clamped with the limiting clamping groove.

Preferably, a marking notch is arranged at the end part of the first connecting pipe, and a straight line where the marking notch and the limiting clamp are located is parallel to the central line of the first connecting pipe.

Preferably, the positioning connection structure further comprises a second connection pipe, the second connection pipe penetrates through the first connection pipe and is located at the outer side of the water outlet pipe, and the second connection pipe is detachably connected with the first connection pipe.

Preferably, the hole of the first connecting pipe comprises a first hole and a second hole which are communicated in a stepped mode, the aperture of the first hole is smaller than that of the second hole, the annular surface between the first hole and the second hole is the third positioning annular surface, the water outlet pipe penetrates through the first hole, the second connecting pipe is in threaded connection with the second hole, and the end portion of the second connecting pipe is propped against the positioning annular edge.

Preferably, the first connecting pipe comprises a first pipe portion and a second pipe portion which are connected in a stepped mode, the outer diameter of the first pipe portion is smaller than that of the second pipe portion, an annular surface between the first pipe portion and the second pipe portion is the second positioning annular surface, first reinforcing ribs are arranged on the outer wall surface of the first pipe portion along the circumferential direction, and one end, away from the first pipe portion, of the second pipe portion is provided with second reinforcing ribs.

Preferably, the water pipe is a water inlet pipe, the water hole is a water inlet hole, and the water inlet end of the water inlet pipe is maintained in an installation state facing the bottom surface of the inner cavity through the positioning connection structure.

The electric water heater comprises a heating pipe and the pipe fitting connecting component, wherein the heating pipe is arranged in an inner cavity of the inner container and is connected to the flange.

The utility model has the beneficial effects that:

the pipe fitting connecting assembly comprises an inner container, a flange, a water pipe and a positioning connecting structure, wherein the flange is arranged on a side mounting part of the inner container, a water hole is formed in the flange in a penetrating mode, the positioning connecting structure is detachably connected in the water hole, a connecting end of the water pipe is limited and connected in the positioning connecting structure, and the end part, far away from the connecting end, of the water pipe is maintained in a mounting state with a fixed orientation through the positioning connecting structure. This pipe fitting coupling assembling adopts location connection structure to realize dismantling through water pipe and flange to be connected for the installation degree of difficulty of other parts on the flange reduces, has alleviated the restricted circumstances of other parts installation, and because the water pipe passes through location connection structure to be connected on the flange makes on the water pipe except that the other tip of link have fixed orientation, can realize intaking or water outlet steadily.

Drawings

Fig. 1 is a schematic diagram of an electric water heater according to an embodiment of the present utility model;

fig. 2 is a cross-sectional view of an electric water heater according to an embodiment of the present utility model;

fig. 3 is a schematic view of a structure of the electric water heater provided by the embodiment of the utility model in the liner under a certain view angle;

fig. 4 is a schematic view of a structure of the electric water heater provided by the embodiment of the utility model in the liner under another view angle;

FIG. 5 is a schematic view of a tubular connection assembly provided in an embodiment of the present utility model;

FIG. 6 is a cross-sectional view of the structure shown in FIG. 5;

FIG. 7 is an enlarged view of portion A of FIG. 6;

FIG. 8 is a schematic view of a positioning connection structure according to an embodiment of the present utility model;

FIG. 9 is a cross-sectional view of a positioning connection structure provided by an embodiment of the present utility model;

FIG. 10 is a schematic view of a first connecting pipe in a positioning connection structure according to an embodiment of the present utility model;

FIG. 11 is a cross-sectional view of a first connection tube in a positioning connection structure provided by an embodiment of the present utility model;

FIG. 12 is a schematic view of a second connecting tube in the positioning connection structure according to the embodiment of the present utility model;

FIG. 13 is a cross-sectional view of a second connection tube in a positioning connection structure provided by an embodiment of the present utility model;

FIG. 14 is a schematic view of a water outlet pipe according to an embodiment of the present utility model;

FIG. 15 is an enlarged view of portion B of FIG. 14;

FIG. 16 is a schematic view of a water outlet pipe and a second water purification mechanism provided by an embodiment of the present utility model;

fig. 17 is a cross-sectional view of a water outlet pipe and a second water purifying mechanism provided in an embodiment of the present utility model;

FIG. 18 is a schematic view of a water inlet pipe and a first water purification mechanism provided by an embodiment of the present utility model;

fig. 19 is a partial cross-sectional view of a water inlet pipe and a first water purification mechanism provided by an embodiment of the present utility model.

In the figure:

100. an inner container; 110. a side mounting portion; 120. an inner cavity;

200. a flange; 210. a water inlet installation sleeve; 220. a water outlet mounting sleeve;

300. heating pipes;

400. a water inlet pipe; 401. a side inlet;

500. a water outlet pipe; 510. positioning the annular edge; 520. a hemming structure;

600. positioning connection structure;

610. a first connection pipe; 611. a second positioning annulus; 612. a third positioning annulus; 613. a first reinforcing rib; 614. a second reinforcing rib; 615. a first tube hole; 616. a second tube hole; 617. the limit clamp is convex; 618. marking the notch; 619. Sealing ring grooves;

620. a second connection pipe; 621. A threaded column; 622. A screw cap;

630. a first seal ring; 640. A second seal ring;

700. a first water purification mechanism; 701. a water permeable hole; 710. a water purifying body; 711. positioning a base; 7111. an annular reinforcing plate; 712. a cylinder; 713. a top cover; 720. a water retaining cap; 721. a stud; 730. a spring retainer ring;

800. a second water purifying mechanism; 801. a water passing hole; 802. plugging the supporting seat;

910. a water inlet assembly; 920. a water outlet assembly; 930. and (5) clamping the clamp.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixed or removable, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The utility model provides a pipe fitting connecting assembly, as shown in fig. 1 to 13, the pipe fitting connecting assembly comprises an inner container 100, a flange 200, a water pipe and a positioning connecting structure 600, wherein one side of the inner container 100 is provided with a side mounting part 110, the flange 200 is mounted on the side mounting part 110, a water hole is formed in the flange 200 in a penetrating manner, the water pipe is arranged in an inner cavity 120 of the inner container 100, the positioning connecting structure 600 is detachably connected in the water hole, a connecting end of the water pipe is limited and connected in the positioning connecting structure 600, and the end, far away from the connecting end, of the water pipe is maintained in a mounting state with a fixed orientation through the positioning connecting structure 600.

The pipe fitting connecting component is mainly used in the electric water heater and realizes the detachable connection of the water pipe on the liner wall of the liner 100 of the electric water heater. It should be noted that, the water pipe may be the water outlet pipe 500 or the water inlet pipe 400. Compared with the problems of increased assembly difficulty and mutual limitation of each part on the flange caused by directly welding the water pipe on the flange in the prior art, the water hole is formed in the flange 200, the positioning connection structure 600 is arranged in the water hole, the positioning connection structure 600 is used for realizing the detachable connection of the water pipe and the flange 200, the assembly difficulty is reduced, and the limitation of the installation of the water pipe on the installation of other parts on the flange 200 is relieved. And the connecting end limit connection of water pipe is in location connection structure 600, makes the tip that keeps away from the connecting end on the water pipe maintain in the installed state that has fixed orientation through location connection structure 600, has improved the stability of intaking or going out water.

The flange 200 is used for integrally mounting the heating pipe 300, the water inlet pipe 400, the water outlet pipe 500, and the like to the side mounting portion 110 of the liner 100. The flange 200 is in a disc-shaped structure, in some embodiments, the flange 200 is a disc member, the side mounting portion 110 is an annular boss, a plurality of first mounting holes are circumferentially formed in the annular boss, a plurality of second mounting holes are circumferentially formed in the flange 200, and a plurality of connecting pieces are used to pass through the first mounting holes and the second mounting holes so as to realize detachable connection between the flange 200 and the side mounting portion 110. Of course, the detachable connection of the flange 200 and the side mount 110 may be achieved in other ways, and is not limited to the above description.

In some embodiments, in order to limit the angle at which the flange 200 is mounted to the side mounting portion 110, thereby ensuring that the structure on the flange 200 has a fixed mounting position and mounting angle after being mounted to the liner 100, fool-proof structures may be provided on the flange 200 and the side mounting portion 110, and fool-proof structures may be positioning holes and positioning posts, that is, positioning holes are provided on one of the flange 200 and the side mounting portion 110, and positioning holes are provided on the other, thereby achieving fool-proof. Alternatively, one pair of the first mounting hole and the second mounting hole may be formed in a specific shape, and when the flange 200 is mounted, the first mounting hole and the second mounting hole having specific shapes need to be disposed facing each other first, and then the connection of the connectors is performed, and the specific shape is not limited and may be different from the shape of the other mounting hole. Alternatively, specific indication symbols, such as two arrows, are provided on the flange 200 and the side mounting portion 110, and when the flange 200 is mounted, it is necessary to directly place the two arrows and then connect the connectors.

In some embodiments, two water holes are formed through the flange 200 along the thickness direction, wherein one water hole is a water outlet hole, and the other water hole is a water inlet hole, and the water outlet hole is used for installing the water outlet pipe 500, and the water inlet hole is used for installing the water inlet pipe 400. The water outlet pipe 500 can be detachably connected in the water outlet hole through a positioning connection structure 600, so that the water outlet end of the water outlet pipe 500 is maintained in a mounting state facing the highest point of the inner cavity 120, water which is not fully heated is prevented from entering the water outlet pipe 500, and water outlet stability of the electric water heater is improved.

With continued reference to fig. 2 to 4, the electric water heater further includes a water inlet assembly 910 and a water outlet assembly 920 disposed outside the inner container 100, and the water inlet hole on the flange 200 is communicated with the water inlet pipe 400 and the water inlet assembly 910, and the water inlet assembly 910 is an external tap water pipe, so that tap water in the tap water pipe can enter the water inlet pipe 400 through the flange 200 and finally flow into the inner container 100. The water outlet hole on the flange 200 is used for communicating the water outlet pipe 500 with the water outlet assembly 920, and the water outlet assembly 920 is an external water pipe of the electric water heater, so that the hot water heated by the heating pipe 300 in the liner 100 can enter the external water pipe through the water outlet pipe 500 and the flange 200.

In order to facilitate connection of the pipes, as shown in fig. 3, a water inlet mounting sleeve 210 is disposed around the water inlet hole on the flange 200, and a water outlet mounting sleeve 220 is disposed around the water outlet hole, and the water inlet mounting sleeve 210 and the water outlet mounting sleeve 220 provide more space for mounting the pipes, so as to facilitate improvement of mounting strength and mounting stability. In some embodiments, the water inlet mounting sleeve 210 and the water outlet mounting sleeve 220 are integrally formed with the main structure of the flange 200, and the water inlet mounting sleeve 210 and the water outlet mounting sleeve 220 are both arranged on the outer wall surface of the main structure of the flange 200 in a protruding manner; in some other embodiments, the main structures of the water inlet mounting sleeve 210, the water outlet mounting sleeve 220 and the flange 200 are independent from each other, and the water inlet mounting sleeve 210 and the water outlet mounting sleeve 220 are respectively inserted into the water inlet hole and the water outlet hole, or the water inlet mounting sleeve 210 and the water outlet mounting sleeve 220 are respectively fixedly connected to the outer wall surface of the main structure of the flange 200.

With continued reference to fig. 3 and 7, the water inlet assembly 910 is removably coupled to the water inlet mounting sleeve 210 by a clip 930, and the water outlet assembly 920 is removably coupled to the water outlet mounting sleeve 220 by a clip 930.

With continued reference to fig. 2 to 6, the water outlet pipe 500 is a curved pipe, the water outlet pipe 500 includes two ends of a water outlet end and a connection end, an opening at the water outlet end is a water outlet, hot water in the liner 100 of the water outlet can enter the water outlet pipe 500, the connection end is detachably connected to the flange 200 through the positioning connection structure 600, and the opening at the connection end is communicated with the water outlet hole. The positioning connection structure 600 and the flange 200 are engaged with each other and are limited to each other, so that the water outlet end of the water outlet pipe 500 is maintained in an installed state toward the highest position of the inner cavity 120 of the liner 100.

In some embodiments, as shown in FIG. 2, the positioning connection structure 600 is a connection tube with a positioning structure that is inserted into the water outlet hole and the water outlet mounting sleeve 220. Specifically, the positioning connection structure 600 includes a first connection pipe 610, where the first connection pipe 610 may be a copper pipe or a pipe made of other materials, and the first connection pipe 610 is penetrated in the water outlet hole from outside to inside, and the direction from outside to inside refers to the penetrating direction from the outside of the liner 100 to the inner cavity 120 of the liner 100. And a first positioning ring surface is arranged on the inner wall surface of the water outlet hole of the flange 200, a second positioning ring surface 611 is arranged on the outer wall surface of the first connecting pipe 610, and the second positioning ring surface 611 and the first positioning ring surface are mutually abutted and limited, so that the first connecting pipe 610 can not move further towards the inner cavity 120 of the liner 100.

And, the connection end of the water outlet pipe 500 is provided with a positioning annular rim 510 protruding outwards along the radial direction, the inner wall surface of the first connection pipe 610 is provided with a third positioning annular surface 612, the water outlet pipe 500 passes through the first connection pipe 610 from outside to inside, and the third positioning annular surface 612 is in spacing and abutting connection with the positioning annular rim 510, so that the water outlet pipe 500 cannot move further towards the inner cavity 120 of the liner 100.

In some embodiments, the water outlet pipe 500 is a curved pipe, in order to enable the water outlet pipe 500 to be assembled with the first connecting pipe 610 smoothly, the water outlet pipe 500 may be configured as a splicing pipe formed by splicing a plurality of sub-pipes, the sub-pipes may be straight pipes or curved pipes, and the sub-pipes required to be connected with the first connecting pipe 610 are straight pipes, so that the problem of inconvenient installation can be solved by splicing the sub-pipes with the first connecting pipe 610 and other sub-pipes. The water outlet pipe 500 and the first connecting pipe 610 may be in interference fit, adhesive, and fixed by a connecting piece, so as to ensure that the water outlet pipe 500 and the first connecting pipe 610 do not rotate relatively after the installation is completed.

With continued reference to fig. 7-11, in some embodiments, the first connection tube 610 includes a first tube portion and a second tube portion connected in a stepped fashion, the first tube portion having an outer diameter smaller than an outer diameter of the second tube portion, and the second positioning annulus 611 formed on the second tube portion. The first connecting pipe 610 has a stepped hole, the stepped hole includes a first pipe hole 615 and a second pipe hole 616, the aperture of the first pipe hole 615 is smaller than that of the second pipe hole 616, the first pipe hole 615 is formed in the first pipe portion and part of the second pipe portion, the second pipe hole 616 is formed in the remaining second pipe portion, and a stepped surface between the first pipe hole 615 and the second pipe hole 616 is the third positioning annular surface 612.

Further, as shown with continued reference to fig. 10 and 11, the first tube portion is provided with first stiffening ribs 613, and in some embodiments, the first stiffening ribs 613 are annular ribs and are disposed circumferentially around the first tube portion. In some embodiments, the number of the first reinforcing ribs 613 is plural, and the plural first reinforcing ribs 613 are disposed at intervals on the first pipe portion. The provision of the first reinforcing ribs 613 can increase the structural strength of the first connection pipe 610, thereby facilitating the improvement of the support stability of the water outlet pipe 500.

With continued reference to fig. 10 and 11, the end of the second tube portion remote from the first tube portion is provided with a second stiffening rib 614, and in some embodiments the second stiffening rib 614 is a bar rib provided in a direction parallel to the axial direction of the second tube portion, optionally the second stiffening rib 614 is an L-shaped rib. In some embodiments, the number of the second reinforcing ribs 614 is plural, the plurality of second reinforcing ribs 614 are disposed at intervals along the circumferential direction of the second pipe portion, and the inner diameter of the forming space surrounded by the plurality of second reinforcing ribs 614 is larger than the inner diameter of the second pipe hole 616. The second reinforcement rib 614 can increase the structural strength of the first connection pipe 610.

In some embodiments, the second reinforcing rib 614 on the first connection pipe 610 is inserted into the water outlet mounting sleeve 220, so that the second reinforcing rib 614 abuts against the inner wall surface of the water outlet mounting sleeve 220, and the abutting area of the first connection pipe 610 and the water outlet mounting sleeve 220 is increased, thereby further improving the assembly stability of the first connection pipe 610 and the flange 200 and the support stability of the water outlet pipe 500.

In order to maintain the water outlet pipe 500 in the initial installation state with the fixed orientation, the water outlet pipe 500 is prevented from being accidentally rotated, so that the position of the water outlet pipe 500 is reduced, and water which is not sufficiently heated is sucked, the first connecting pipe 610 is provided with a limiting clamping protrusion 617, the flange 200 is provided with a limiting clamping groove, and the limiting clamping protrusion 617 and the limiting clamping groove are clamped so that the water outlet end of the water outlet pipe 500 faces the highest point of the liner 100. Of course, in other embodiments, the positions of the limit stop protrusion 617 and the limit stop groove may be interchanged, that is, the limit stop protrusion 617 is disposed on the flange 200, and the limit stop groove is disposed on the outer wall surface of the first connection pipe 610. In some embodiments, the stop tabs 617 or stop slots are disposed on the first tube portion of the first connection tube 610 on a side of the second positioning annulus 611 adjacent to the first tube portion.

In order to indicate the position of the limit clip protrusion 617 or the limit clip groove on the first connection pipe 610, as shown in fig. 10, a mark notch 618 is provided at an end of the second reinforcement rib 614, the mark notch 618 is positioned on the same line as the limit clip protrusion 617 or the limit clip groove, and the line is parallel to the center line of the first connection pipe 610, so that the position of the limit clip protrusion 617 or the limit clip groove is determined by observing the position of the mark notch 618 when the first connection pipe 610 is installed, so that the installation angle of the first connection pipe 610 can be controlled more easily.

Further, in order to avoid the first connecting tube 610 moving away from the inner cavity 120 of the liner 100, as shown in fig. 7 to 10, 12 and 13, the positioning connecting structure 600 further includes a second connecting tube 620, the second connecting tube 620 is disposed in the first connecting tube 610 and is located outside the water outlet tube 500, the second connecting tube 620 is detachably connected to the first connecting tube 610, and an end portion of the second connecting tube 620 abuts against the positioning ring edge 510. The first connecting pipe 610 can be limited by the second connecting pipe 620, so that the first connecting pipe 610 cannot move towards the direction far away from the inner cavity 120 of the liner 100, and the second connecting pipe 620 and the first connecting pipe 610 are matched to clamp the positioning annular edge 510 of the water outlet pipe 500, so that the water outlet pipe 500 cannot rotate relative to the first connecting pipe 610, at the moment, the first connecting pipe 610 and the water outlet pipe 500 are not required to be relatively fixed in an interference fit, adhesion and other modes, and only the second connecting pipe 620 is installed and pressed against the water outlet pipe 500 after the orientation of the water outlet pipe 500 is adjusted. It should be noted that, the second connection pipe 620 is located in a space defined by the second pipe hole 616 and the plurality of second reinforcing ribs 614.

In some embodiments, a threaded structure is formed on an inner wall surface of the second tube hole 616, that is, the second tube hole 616 is a threaded hole, the second connecting tube 620 is a hexagonal bolt with a through hole formed along an axial direction, that is, the second connecting tube 620 includes a threaded post 621 and a nut 622 connected to each other, the threaded post 621 is screwed in the second tube hole 616, and the nut 622 is disposed in a space surrounded by the plurality of second reinforcing ribs 614.

With continued reference to fig. 9, a first sealing ring 630 is disposed between the first connection pipe 610 and the water outlet mounting sleeve 220, and a second sealing ring 640 is disposed between the second connection pipe 620 and the first connection pipe 610, so as to achieve the purpose of improving the tightness of the connection between the water inlet pipe 400 and the flange 200.

In some embodiments, as shown in fig. 10 and 11, a seal ring groove 619 is formed on the second pipe portion of the first connection pipe 610, and the first seal ring 630 is placed in the seal ring groove 619. In some embodiments, a serration pad and a spring washer are provided between the second connection pipe 620 and the first connection pipe 610, and the serration pad and the spring washer are provided to prevent loosening or reversing of the threads of the hexagonal bolt.

With continued reference to fig. 2-6, 18 and 19, the water inlet pipe 400 is connected within the water inlet of the flange 200, where the connection may be a fixed connection, such as welding. The water inlet pipe 400 is a curved pipe, the water inlet pipe 400 comprises a water inlet end and two end parts of a connecting end, an opening at the water inlet end is a water inlet, and tap water can enter the liner 100 through the water inlet.

Of course, the water inlet pipe 400 and the flange 200 may be connected in a detachable manner instead of being fixedly connected. In some embodiments, the connection end of the water inlet pipe 400 may be detachably connected to the flange 200 by another positioning connection structure 600 as well, and the opening at the connection end of the water inlet pipe 400 is communicated with the water inlet hole. The positioning connection structure 600 and the flange 200 cooperate with each other and are limited to each other, so that the water inlet of the water inlet pipe 400 is maintained in an installation state toward the lowest position of the liner 100, thereby achieving the purpose of reducing the flow rate of the water inlet.

It should be noted that, the specific structure of the positioning connection structure 600 is described above, and will not be described herein, but the usage scenario of the positioning connection structure 600 is replaced by the water inlet pipe 400 by the water outlet pipe 500, that is, the structure that is disposed on the water outlet pipe 500 and used in cooperation with the positioning connection structure 600 is also disposed on the water inlet pipe 400.

In some embodiments, the water inlet pipe 400 includes a horizontal water inlet section, at least one curved section, and a vertical water inlet section connected in sequence, the water inlet being disposed on the vertical water inlet section, the curved section enabling the vertical water inlet section to be disposed proximate to the bottom of the liner 100 such that the water inlet position is maintained at the bottom of the liner 100. Of course, the number of horizontal inlet sections included in the inlet pipe 400 may be set to be plural, as desired, at any position upstream of the vertical inlet section.

The utility model provides an electric water heater which is a water storage type water heater and a side inlet and side outlet water heater. As shown in fig. 1 to 19, the electric water heater includes a liner 100, a flange 200, a heating pipe 300, a water inlet pipe 400, a water outlet pipe 500, a positioning connection structure 600, and a water purifying assembly. The inner cavity 120 of the liner 100 is used for storing water and accommodating the heating pipe 300, the water inlet pipe 400, the water outlet pipe 500, the water purifying component and the like. In some embodiments, the liner 100 is a non-metallic liner, such as a plastic liner or a crystal liner.

With continued reference to fig. 2 to 6, one end of the heating tube 300 is connected to the flange 200, and the other end of the heating tube 300 extends substantially to the other end of the liner 100 away from the side mounting portion 110, so that the heating efficiency of the heating tube 300 can be improved. In some embodiments, the connection position of the heating pipe 300 and the flange 200 is located substantially at the middle of the flange 200, thereby providing a sufficient installation space for the installation of the water inlet pipe 400 and the water outlet pipe 500 on the flange 200. In some embodiments, the heating tube 300 is welded to the flange 200; in some other embodiments, the heating tube 300 is removably coupled to the flange 200 by, but not limited to, a threaded connection, a bayonet connection, or the like.

In some embodiments, the heating tube 300 is an annular tube, with both free ends of the annular tube being connected to the flange 200. In some more specific embodiments, the heating tube 300 is a U-shaped tube, i.e., the heating tube 300 includes a first straight tube, a curved tube, and a second straight tube connected in sequence; in some other embodiments, the heating tube 300 is a special tube, for example, the heating tube 300 includes a first curve tube, a second curve tube, and a third curve tube connected in sequence, the first curve tube and the third curve tube being disposed above each other and having the same shape; alternatively, the heating tube 300 is a combination of more curved tubes and straight tubes. The number of heating pipes 300 may be set to one or more according to the need.

The water in the inner container 100 is heated and then rises and gathers in the upper portion of the inner container 100, so that the hot water enters the water outlet pipe 500 through the water outlet as much as possible, and the water outlet end of the water outlet pipe 500 is generally close to the highest position of the inner container 100 as much as possible, so that the water is easily scratched with the inner wall of the inner container 100, and the inner container 100 is damaged.

In order to avoid the damage to the liner 100, as shown in fig. 14 and 15, a curled edge structure 520 is provided at the water outlet end of the water outlet pipe 500, and the curled edge structure 520 is provided to smooth the water outlet end of the water outlet pipe 500 without sharp corners, so that the liner 100 is not easily scratched even if the water outlet end contacts with the liner 100.

In order to prevent the water outlet end of the water outlet pipe 500 from being too close to the inner wall of the liner 100 to cause water outlet abnormality, an auxiliary water outlet structure (not shown in the figure) is arranged on the water outlet pipe 500, and the auxiliary water outlet structure is utilized to assist the water pipe to feed water, so that when the water outlet is accidentally blocked, the water outlet of the water outlet pipe 500 can still be realized through the auxiliary water outlet structure.

In some embodiments, the auxiliary water outlet structure includes an auxiliary water outlet hole disposed on a sidewall of the water outlet pipe 500, optionally, the auxiliary water outlet hole is a regular hole such as a round hole or a square hole penetrating through the sidewall of the water outlet pipe 500, or an irregular hole, the number of the auxiliary water outlet holes can be one or more according to requirements, the plurality of auxiliary water outlet holes are disposed along a circumferential interval of the water outlet pipe 500, and a distance between the auxiliary water outlet hole and the water outlet is not too large, so as to avoid water with a low temperature from entering the water outlet pipe 500 through the auxiliary water outlet hole.

In some embodiments, the auxiliary water outlet structure is a notch disposed at the water outlet end of the water outlet pipe 500, and the notch makes the water outlet uneven, so that even if the water outlet end of the water outlet pipe 500 abuts against the inner wall of the liner 100, a gap is left for water inlet. In some embodiments, the number of indentations is a plurality, and the plurality of indentations is disposed around the water outlet. In some embodiments, the side view of the notch is semicircular, the top view of the notch is elliptical, and the edges of the notch are rounded to avoid scratching the inner wall of the liner 100.

In some embodiments, the auxiliary water outlet structure is an auxiliary water pipe disposed on a side wall of the water outlet pipe 500, the auxiliary water pipe is communicated with the water outlet pipe 500, the auxiliary water pipe has an auxiliary water outlet, and the height of the auxiliary water outlet is smaller than that of the water outlet. In some embodiments, the ends of the auxiliary water pipe are likewise crimped. It should be noted that, according to the requirement, the auxiliary water outlet structure may be provided with one or more of an auxiliary water outlet hole, an auxiliary notch and an auxiliary water pipe, so as to further improve the water outlet smoothness.

The water purification component is used for purifying water quality, so that the use experience of a user is improved. In order to enhance the water purifying effect, with continued reference to fig. 3, the water purifying assembly includes a first water purifying mechanism 700 and a second water purifying mechanism 800, the first water purifying mechanism 700 is disposed on the water inlet pipe 400, and the second water purifying mechanism 800 is disposed on the water outlet pipe 500. Both the first water purifying mechanism 700 and the second water purifying mechanism 800 can purify the water substance having the water purifying function.

The water purifying substances provided by the first water purifying mechanism 700 and the second water purifying mechanism 800 may be the same, thereby improving water purifying efficiency. Of course, since the water purifying substances for improving the water quality are various, different water purifying substances can improve the water quality from different aspects, for example, the water purifying substances can be scale inhibitors, ores or chlorine scavengers, etc., and the functions of scale inhibition, mineralization, chlorine removal, etc. are realized. And because different water purifying substances are suitable for acting at different temperatures, the first water purifying mechanism 700 is at a lower temperature and is suitable for storing water purifying substances suitable for acting at lower temperatures, and the second water purifying mechanism 800 is at a higher temperature and is suitable for storing water purifying substances suitable for acting at lower temperatures. The first water purifying means 700 and the second water purifying means 800 are provided to increase the storage amount and the storage type of the purified water substance.

With continued reference to fig. 19, the first water purification mechanism 700 includes a water purification body 710 and a water blocking cap 720. The water purification main body 710 is used for placing water purification substances, the water purification main body 710 is provided with a water permeable hole 701 in a penetrating way, the water retaining cap 720 is arranged on the water inlet end of the water inlet pipe 400 in a covering way, and the side wall of the water inlet end of the water inlet pipe 400 is provided with a water inlet 401. By arranging the water retaining cap 720, tap water flowing out from the water inlet 401 is blocked by the water retaining cap 720, the flowing speed is slowed down, and the water flow is reversed, so that the time required for flowing tap water with lower temperature to the upper part of the liner 100 is prolonged, and the phenomenon that the temperature of the discharged water is unstable due to too fast mixing of cold water and hot water is avoided.

In some embodiments, the water purifying body 710 includes a positioning base 711, a cylinder 712, and a top cover 713 sequentially connected from bottom to top, and the water permeable hole 701 is provided on the cylinder 712. Optionally, the water purifying body 710 further includes a plurality of dividing plates (not shown in the drawings) that divide the space inside the water purifying body 710 into a plurality of storage chambers, and different storage chambers can store different water purifying substances. This can increase the types of water purifying substances that can be contained in the water purifying body 710.

In some embodiments, the water blocking cap 720 is screwed with the water purifying body 710, the stud 721 is disposed on the water blocking cap 720, the screw hole is disposed on the positioning base 711, and the stud 721 is screwed in the screw hole. In some embodiments, the first water purifying mechanism 700 further comprises at least one of a saw-tooth washer and a spring collar 730, wherein the saw-tooth washer and the spring collar 730 are sleeved on the stud 721 and are positioned between the water retaining cap 720 and the water purifying body 710, so as to achieve the purpose of preventing loosening or reversing of threads.

In some embodiments, the positioning base 711 is provided with a columnar portion protruding into the cylinder 712, and an annular reinforcing plate 7111 is provided on the columnar portion, and an outer end of the annular reinforcing plate 7111 abuts against an inner wall surface of the cylinder 712 to improve the stability of support of the cylinder 712.

With continued reference to fig. 17, the second water purifying mechanism 800 includes a water purifying sleeve sleeved on the water outlet pipe 500, a storage space is formed between an inner wall surface of the water purifying sleeve and an outer wall surface of the water outlet pipe 500, and a water passing hole 801 is formed in the water purifying sleeve in a penetrating manner.

In some embodiments, the first reinforcing rib 613 disposed on the first connecting pipe 610 is inserted into the water purifying sleeve, and the outer wall surface of the first reinforcing rib 613 is in limited abutment with the inner wall surface of the water purifying sleeve, so that the water purifying sleeve can be limited, and the water purifying sleeve can be coaxially sleeved on the water outlet pipe 500.

In some embodiments, as shown in fig. 17, a plugging support seat 802 is further disposed between the other end of the water purification sleeve and the water outlet pipe 500, the plugging support seat 802 is sleeved on the water outlet pipe 500, and plugs between the water outlet pipe 500 and the water purification sleeve, so that the purpose of plugging an opening at one end of the storage space is achieved in addition to ensuring that the water purification sleeve and the water outlet pipe 500 are coaxially sleeved.

In some embodiments, a plurality of dividing baffles (not shown) are disposed in the storage space, so as to divide the storage space into a plurality of sub-spaces disposed at intervals, and different sub-spaces can be used for placing different water purifying substances. The variety of the water purifying substances which can be contained in the water purifying sleeve can be improved.

The electric water heater provided by the utility model has the following advantages:

1. the inner container 100 has good sealing property. Compared with the installation mode of the lower inlet and lower outlet type in the prior art, the electric water heater provided by the utility model has the advantages that the problem of poor sealing performance is caused by at least arranging two holes on the lower wall of the liner, the electric water heater adopts the installation mode of side inlet and side outlet type, only one hole of the installation flange 200 is arranged on the side part of the liner 100, the sealing performance of the liner 100 is ensured, and meanwhile, the water leakage risk of a user in the use process is reduced.

2. The installation difficulty of the water inlet and outlet pipes is reduced, and the overhaul is convenient. According to the electric water heater provided by the utility model, the water inlet pipe 400 and the water outlet pipe 500 are connected with the flange 200 in a detachable connection mode, so that the installation difficulty of the water inlet pipe and the water outlet pipe is reduced, the water inlet pipe and the water outlet pipe are easy to detach for maintenance and detection, the condition that the heating pipe 300 is limited in installation is relieved, the extending length and the structure of the heating pipe 300 are reduced due to the limitation of the water outlet pipe 500, the heating efficiency of the heating pipe 300 is not easy to influence, and meanwhile, the popularization and the use of the heating pipe 300 with a special structure are facilitated.

3. The temperature of the effluent is stable. Because the water outlet pipe 500 is connected to the flange 200 through the positioning connection structure 600, the water outlet end of the water outlet pipe 500 can be maintained in a mounting state facing the highest point of the liner 100, so that water which is not fully heated is prevented from entering the water outlet pipe 500, and the water outlet stability of the electric water heater is improved.

4. The water purifying effect is good, and the water purifying efficiency is high. The electric water heater provided by the utility model increases the filling quantity and the filling types of the water purifying substances by arranging the first water purifying mechanism 700 and the second water purifying mechanism 800, and can achieve the functions of scale inhibition, mineralization, chlorine removal and the like.

5. The liner 100 is not easily damaged. By hemming the water outlet end of the water outlet pipe 500, the water outlet end of the water outlet pipe 500 is not easy to scratch the inner wall of the liner 100, which is beneficial to prolonging the service life of the liner 100.

6. The water outlet smoothness is good. By arranging the auxiliary water outlet structure on the water outlet pipe 500, the water outlet smoothness of the water outlet pipe 500 is ensured.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. A pipe connection assembly, comprising:

a liner (100), wherein one side of the liner (100) is provided with a side mounting part (110);

a flange (200), wherein the flange (200) is installed on the side installation part (110), and a water hole is formed in the flange (200) in a penetrating manner;

the water pipe is arranged in the inner cavity (120) of the inner container (100);

the positioning connection structure (600), the positioning connection structure (600) can be dismantled and connect in the water hole, the link spacing connection of water pipe is in the positioning connection structure (600), through positioning connection structure (600) makes keep away from on the water pipe the tip of link keeps in the installation state that has fixed orientation.

2. A pipe connection assembly as defined in claim 1, wherein,

the water pipe is a water outlet pipe (500), the water hole is a water outlet hole, and the water outlet end of the water outlet pipe (500) is maintained in an installation state facing the highest point of the inner cavity (120) through the positioning connection structure (600).

3. A pipe connection assembly as defined in claim 2, wherein,

the flange (200) is provided with a first positioning ring surface, the first positioning ring surface is arranged around the water outlet hole, and the connecting end of the water outlet pipe (500) is outwards protruded along the circumferential direction of the water outlet pipe (500) to form a positioning ring edge (510);

the positioning connection structure (600) comprises a first connection pipe (610), the first connection pipe (610) is arranged in the water outlet in a penetrating mode, a second positioning annular surface (611) in limiting butt with the first positioning annular surface is arranged on the outer wall surface of the first connection pipe (610), a third positioning annular surface (612) is arranged on the inner wall surface of the first connection pipe (610), the water outlet pipe (500) penetrates through the first connection pipe (610) to be arranged, and the third positioning annular surface (612) is in limiting butt with the positioning annular edge (510).

4. A pipe coupling assembly according to claim 3, wherein,

one of the first connecting pipe (610) and the flange (200) is provided with a limiting clamping protrusion (617), and the other one is provided with a limiting clamping groove, and the limiting clamping protrusion (617) is clamped with the limiting clamping groove.

5. A pipe coupling assembly according to claim 4, wherein,

the end part of the first connecting pipe (610) is provided with a marking notch (618), and a straight line where the marking notch (618) and the limit clamping protrusion (617) or the limit clamping groove are located is parallel to the central line of the first connecting pipe (610).

6. A pipe coupling assembly according to claim 3, wherein,

the positioning connection structure (600) further comprises a second connection pipe (620), the second connection pipe (620) is arranged in the first connection pipe (610) in a penetrating mode and located on the outer side of the water outlet pipe (500), and the second connection pipe (620) is detachably connected with the first connection pipe (610).

7. A pipe coupling assembly according to claim 6, wherein,

the pipe hole of first connecting pipe (610) is including first pipe hole (615) and second pipe hole (616) that are echelonment intercommunication, the aperture of first pipe hole (615) is less than the aperture of second pipe hole (616), first pipe hole (615) with anchor ring between second pipe hole (616) is third location anchor ring (612), outlet pipe (500) wear to establish in first pipe hole (615), second connecting pipe (620) threaded connection is in second pipe hole (616) just the tip of second connecting pipe (620) supports and presses on positioning ring limit (510).

8. A pipe coupling assembly according to claim 3, wherein,

the first connecting pipe (610) comprises a first pipe portion and a second pipe portion which are connected in a stepped mode, the outer diameter of the first pipe portion is smaller than that of the second pipe portion, an annular surface between the first pipe portion and the second pipe portion is the second positioning annular surface (611), first reinforcing ribs (613) are arranged on the outer wall surface of the first pipe portion along the circumferential direction, and one end, away from the first pipe portion, of the second pipe portion is provided with second reinforcing ribs (614).

9. A pipe connection assembly as defined in claim 1, wherein,

the water pipe is a water inlet pipe (400), the water hole is a water inlet hole, and the water inlet end of the water inlet pipe (400) is maintained in an installation state facing the bottom surface of the inner cavity (120) through the positioning connection structure (600).

10. An electric water heater, characterized by comprising a heating pipe (300) and the pipe connection assembly according to any one of claims 1-9, the heating pipe (300) being arranged in the inner cavity (120) of the inner container (100), and the heating pipe (300) being connected to the flange (200).