CN219494420U - Liner and water heater - Google Patents

Abstract

The utility model belongs to the technical field of electric appliances, and particularly relates to an inner container and a water heater. The inner container comprises: at least two containers, two adjacent containers are fixedly connected, and are provided with butted openings so as to enable the two adjacent containers to be communicated; wherein, the opening department that two courage bodies butt joint is provided with the reinforcement that the staggered arrangement was arranged. The inner container and the water heater can avoid water leakage at the welding seam of the butt joint part of the two inner containers, and the service life of the inner container is prolonged.

Description

Liner and water heater

Technical Field

The application belongs to the technical field of electric appliances, and particularly relates to an inner container and a water heater.

Background

In order to reduce the diameter of the inner container and achieve the purpose of reducing the volume and the thickness of the water heater, the inner container generally adopts a double-inner container structural design, namely, two small-diameter cylindrical inner containers are connected in series, and the connecting mode generally adopts two inner container middle rings to be tightly contacted and welded and fixed at the butt joint part.

However, in the prior art, a water leakage condition occurs at the butt joint portion of the two liners.

Disclosure of Invention

In order to solve the technical problems, the utility model provides an inner container and a water heater, which aim to solve the technical problems that water leakage occurs at the welding seam of two container bodies which are butted to a certain degree.

The technical scheme of the utility model is as follows:

the inner container is characterized by comprising: at least two containers, two adjacent containers are fixedly connected, and are provided with butted openings so as to enable the two adjacent containers to be communicated; wherein, the opening department that two courage bodies butt joint is provided with the reinforcement that the staggered arrangement was arranged.

The two adjacent containers are fixedly connected, and are provided with openings which are butted, so that the two adjacent containers are communicated, and water can flow between the two containers. Simultaneously, the uncovered department of two courage body butt joints is provided with the reinforcement of staggered arrangement, connect open both ends through the reinforcement, the rigidity and the intensity of the uncovered department of every courage body have been improved, reduce the deflection that the uncovered produced or avoid uncovered deformation, and then less cause the influence to the welding seam of two courage body butt joints positions, make the welding seam be difficult to crack, reduce the risk that the welding seam became invalid, improve sealed effect, reduce the possibility that the welding seam department of two courage body butt joints positions appears leaking, the life of inner bag has been improved, simultaneously, because the reinforcement staggered arrangement, can guarantee that enamel liquid can flow the surface of the reinforcement of every uncovered department in the coating manufacturing process, guarantee that the equal cover of surface of reinforcement has the enamel layer.

In some embodiments, at least one reinforcing member connected with the liner body is disposed at the opening of each liner body, and the reinforcing member is fixedly connected with the liner body or integrally formed with the liner body, so that the reinforcing member and the liner body are firmly connected.

In some embodiments, a plurality of the stiffeners are disposed at each of the openings, and the plurality of stiffeners are disposed in parallel and spaced apart relation.

Gaps are reserved between every two adjacent reinforcing pieces to form a hollow structure, so that water can flow conveniently, and water outlet efficiency is improved.

In some embodiments, a plurality of the stiffeners at each of the openings are equally spaced to ensure that the ends of each opening are uniformly stressed.

In some embodiments, a plurality of the stiffeners at each of the openings are spaced apart along the axial direction of the bladder.

Can realize that a plurality of reinforcement are to the connection at every uncovered both ends, improve the rigidity and the intensity of the uncovered department of every courage body, avoid uncovered deformation, can not lead to the fact the influence to the welding seam of two courage body butt joint positions, make the welding seam be difficult for cracking, reduce the risk that the welding seam became invalid, guaranteed sealed effect, avoid the welding seam department of two courage body butt joint positions to appear leaking, improved the life of inner bag.

In some embodiments, the two reinforcements are arranged in a staggered manner and are butted with each other at the opening, and the gaps between the reinforcements form the gaps communicated with the at least two liners, so that enamel liquid can flow to the surface of the reinforcements at each opening in the coating manufacturing process, and the surfaces of the reinforcements are covered with enamel layers.

In some embodiments, the reinforcement member is fixedly connected with the inner wall of the liner body, so that the butt joint positions of two adjacent liner bodies are tightly attached, gaps between the two adjacent liner bodies are reduced, welding difficulty is reduced, and welding is facilitated.

In some embodiments, the width of the two ends of the reinforcement is greater than the width of the middle part of the reinforcement, which facilitates the flow of water and improves the water outlet efficiency.

In some embodiments, the cross-sectional shape of the bladder is arcuate or semi-circular to form an opening that ensures that water can flow between adjacent bladders.

In some embodiments, the liner comprises a cylinder provided with the opening and end caps fixed at two ends of the cylinder.

In some embodiments, two adjacent containers are welded together to form a weld at the junction of the two containers, and the ends of the cylinder are closed by end caps.

In some embodiments, the liner further comprises at least one reinforcing member attached to the weld, and two ends of the reinforcing member are located on two sides of the weld and fixed to two adjacent liner bodies respectively.

The thickness of the welding seam between two adjacent liner bodies is increased through the reinforcing piece, so that the stress cross section area of the welding seam is increased, the rigidity and the bearing capacity of the welding seam are improved, the deformation in the pulse fatigue process is restrained, the welding seam is not easy to crack, the risk of failure of the welding seam in the pulse fatigue is reduced, the sealing effect is ensured, the water leakage at the welding seam of the liner is avoided, and the service life of the liner is prolonged.

Based on the same inventive concept, the utility model also provides a water heater, which comprises an inner container.

The beneficial effects of the utility model at least comprise:

in the use process of the inner container, when water is stored through the container body of the inner container, water pressure can be generated, the water pressure can act on two ends of the opening where two adjacent container bodies are in butt joint, so that the opening is deformed, in the opening deformation process, the weld joint tissues of the butt joint parts of the two container bodies are suddenly changed and stressed unevenly, local deformation is generated, the weld joint is cracked, and the water leakage condition is caused at the butt joint parts of the two inner containers.

In this application, two adjacent courage body fixed connection, and all offered the uncovered of butt joint to make two adjacent courage body intercommunication, water can flow between two courage bodies. Simultaneously, the uncovered department of two courage body butt joints is provided with the reinforcement of staggered arrangement, connect open both ends through the reinforcement, the rigidity and the intensity of the uncovered department of every courage body have been improved, reduce the deflection that the uncovered produced or avoid uncovered deformation, and then less cause the influence to the welding seam of two courage body butt joints positions, make the welding seam be difficult to crack, reduce the risk that the welding seam became invalid, improve sealed effect, reduce the possibility that the welding seam department of two courage body butt joints positions appears leaking, the life of inner bag has been improved, simultaneously, because the reinforcement staggered arrangement, can guarantee that enamel liquid can flow the surface of the reinforcement of every uncovered department in the coating manufacturing process, guarantee that the equal cover of surface of reinforcement has the enamel layer.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a liner according to the present embodiment;

FIG. 2 is a perspective view of the liner of FIG. 1;

FIG. 3 is a schematic view of the arrangement of the reinforcement of the liner of FIG. 1;

FIG. 4 is a schematic view of the liner body of the liner of FIG. 1;

FIG. 5 is a schematic view of the liner of FIG. 1;

FIG. 6 is a schematic view of the arrangement of the reinforcement of the liner of FIG. 1;

FIG. 7 is a schematic view of a reinforcement structure of the liner of FIG. 1;

FIG. 8 is a schematic view showing the arrangement of a reinforcement member of the liner according to another embodiment;

FIG. 9 is a schematic view of a liner according to another embodiment;

in the accompanying drawings:

bladder 10, opening 101, barrel 102, end cap 103, weld 104;

the reinforcing member 20 is provided with a plurality of reinforcing members,

the reinforcement 30.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. 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.

It should be noted that all the directional indicators in the embodiments of the present utility model are only used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture, and if the specific posture is changed, the directional indicators are correspondingly changed.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The present application is described below with reference to specific embodiments in conjunction with the accompanying drawings:

the embodiment provides an inner bag and water heater, aims at solving the technical problem that the water leakage condition can appear in the welding seam department of two courage bodies that dock to a certain extent at least.

Fig. 1 is a schematic structural view of a liner according to the present embodiment, fig. 2 is a schematic structural view of an inner liner of fig. 1, fig. 3 is a schematic structural view of a reinforcement member of the liner of fig. 1, and fig. 4 is a schematic structural view of a liner body of the liner of fig. 1. With reference to fig. 1, 2, 3 and 4, the present embodiment includes: at least two bladders 10. The two adjacent containers 10 are fixedly connected, and are provided with openings 101 for butt joint so that the two adjacent containers 10 are communicated. Wherein, the opening 101 where the two containers 10 are butted is provided with reinforcing members 20 which are arranged in a staggered way.

In the present embodiment, as shown in fig. 1, the number of the bladder 10 is two as shown in fig. 1. In other embodiments, as shown in fig. 9, the number of the containers 10 may be three, and of course, the number of the containers 10 may be four or more.

The number of stiffeners 20 is one or more.

Fig. 7 is a schematic structural view of a reinforcing member of the liner of fig. 1. Referring to fig. 7, when the number of the reinforcing members 20 is one, the reinforcing members 20 may cover the whole of the opening 101, and at this time, the reinforcing members 20 are provided with through holes penetrating through the reinforcing members 20, water may flow between the two containers 10 through the through holes, and of course, the reinforcing members 20 may cover a part of the opening 101, and water may flow between the two containers 10 through the reinforcing members 20 without being covered.

In the use process of the inner container, when water is stored through the container body of the inner container, water pressure can be generated, the water pressure can act on two ends of the opening where two adjacent container bodies are in butt joint, so that the opening is deformed, in the opening deformation process, the weld joint tissues of the butt joint parts of the two container bodies are suddenly changed and stressed unevenly, local deformation is generated, the weld joint is cracked, and the water leakage condition is caused at the butt joint parts of the two inner containers.

In this application, two adjacent containers 10 are fixedly connected, and the two containers 10 are provided with openings 101 for butt joint, so that two adjacent containers 10 are communicated, and water can flow between the two containers 10. Meanwhile, the reinforcing pieces 20 which are arranged in a staggered mode are arranged at the positions of the openings 101 where the two liner bodies 10 are in butt joint, the two ends of the openings 101 are connected through the reinforcing pieces 20, the rigidity and strength of the positions of the openings 101 of each liner body 10 are improved, the deformation amount caused by the openings is reduced, or the deformation of the openings 101 is avoided, the effect on the welding seams of the butt joint positions of the two liner bodies 10 is further reduced, the welding seams are not easy to crack, the risk of failure of the welding seams is reduced, the sealing effect is improved, the possibility of water leakage at the welding seams of the butt joint positions of the two liner bodies 10 is reduced, the service life of the liner is prolonged, and meanwhile, the fact that the reinforcing pieces 20 are arranged in a staggered mode can ensure that enamel liquid can flow to the surface of the reinforcing pieces of the positions of each opening in the coating manufacturing process, and enamel layers are covered on the surfaces of the reinforcing pieces.

In some embodiments, since the reinforcing member 20 is disposed at each opening 101, the rigidity and strength of each container body 10 at the opening 101 are improved, so that the wall thickness of the container body 10 can be reduced, and thus the volume of the container body 10 can be increased, while saving materials and reducing costs. In the present embodiment, the thickness of the bladder 10 may be 300mm or less.

In some embodiments, compared with the prior art that two containers are connected through a communicating pipe, more than 16mm of space is wasted between the two containers, and the two containers 10 are communicated through the opening 101, that is, no communicating pipe is added between the two containers 101, so that space waste is avoided, water can be stored in the space in the two containers 10, the structure of the inner container is compact, occupied space is reduced, and additional pipe fittings are avoided.

Fig. 9 is a schematic structural view of an inner container according to another embodiment. Referring to fig. 9, in some embodiments, when the number of the liner bodies 10 is greater than two, a plurality of liner bodies 10 may be arranged in parallel, two adjacent liner bodies 10 are fixedly connected, and openings 101 are formed to connect the two adjacent liner bodies 10, so that the liner products with different specifications can be manufactured according to the design requirements of the shapes, and the liner structure is compact.

In some embodiments, in order to ensure that the reinforcing member 20 is firmly connected with the liner body 10, at least one reinforcing member 20 connected with the liner body 10 is arranged at the opening 101 of each liner body 10, the reinforcing member 20 and the liner body 10 are fixedly connected or integrally formed with the liner body 10, so that the rigidity and strength of the opening 101 of each liner body 10 are improved, deformation of the opening 101 is avoided, the effect on welding seams of the butt joint positions of the two liner bodies 10 is avoided, the welding seams are not easy to crack, the risk of failure of the welding seams is reduced, the sealing effect is ensured, water leakage at the welding seams of the butt joint positions of the two liner bodies 10 is avoided, and the service life of the liner is prolonged. In this embodiment, the pipe body is manufactured by a pipe manufacturing process, and the pipe body is cut along the radial direction of the pipe body according to the structural design requirement of the pipe body to obtain the integrally formed pipe body 10 and the reinforcing member 20, however, in other embodiments, the pipe body 10 and the reinforcing member 20 may be formed in a non-integral manner, such as welding or bonding. However, in order to reduce the number of processing steps and to ensure a secure connection, the reinforcing member 20 is preferably integrally formed with the bladder 10.

Fig. 5 is a schematic molding view of the liner of fig. 1. Referring to fig. 5, in this embodiment, in order to ensure the roundness of the liner body 10, the reinforcement member 20 and the liner body 10 are manufactured by a pipe manufacturing process, so that the roundness of the liner body 10 obtained by the manufacture meets the requirement, the pulse deformation caused by the water pressure is uniform, the pulse deformation caused by the water pressure on the liner body 10 is effectively controlled, the pulse fatigue life can be further controlled, and further, the service life of the liner is improved. In the prior art, the forming of the liner body 10 needs a plurality of working procedures of cutting, rolling, direct welding, pressing and punching, and the liner is prepared by adopting a pipe making process, so that the production working procedures can be effectively reduced, the production efficiency is improved, and the production cost is reduced.

In the present embodiment, the reinforcing member 20 and the bladder 10 are integrally formed, so that the reinforcing member 20 is made of the same material as the bladder 10. In the present embodiment, the material of the reinforcing material 20 and the bladder 10 may be steel or an aluminum alloy. However, from the viewpoint of cost saving, the material of the reinforcing member 20 and the bladder 10 is preferably steel. Of course, in other embodiments, the reinforcement member 20 and the liner 10 may not be integrally formed, but the reinforcement member 20 may be fixed to the liner 10 by welding, bonding, or the like, and the liner 10 and the reinforcement member 20 may be made of different materials, such as steel for the liner 10, and aluminum alloy for the reinforcement member 20, or may be exchanged, provided that the reinforcement member 20 and the liner 10 are not integrally formed.

In some embodiments, a plurality of reinforcing members 20 are disposed at each opening 101, and the plurality of reinforcing members 20 are disposed in parallel at intervals, that is, a gap is formed between every two adjacent reinforcing members 20, so as to form a hollow structure, which is convenient for water flow. Meanwhile, when sand blasting and enamel are performed on the inner wall of the liner body 10 and the surfaces of the plurality of reinforcing members 20, enamel liquid can flow between every two adjacent reinforcing members 20 in a gap manner, so that the enamel liquid can flow in the liner body 10, the whole inner cavity wall of the liner body 10 and the reinforcing members 20 are ensured to be covered with enamel layers, and the liner coating manufacturing is realized.

Referring to fig. 5 and 4, in this embodiment, a connection board may be disposed at each opening 101, and then, a laser cutting may be performed on a partial area of the connection board to form a hollowed-out structure, and at the same time, a plurality of grid bars, that is, the reinforcing member 20, may be obtained.

In the present embodiment, the plurality of reinforcing members 20 are identical in shape and size, but in other embodiments, the plurality of reinforcing members 20 may be different in shape and size, but from the viewpoint of facilitating processing and reducing production cost, the plurality of reinforcing members 20 are preferably identical in shape and size.

In this embodiment, in order to ensure that the stress at two ends of each opening 101 is uniform, the plurality of reinforcing members 20 at each opening 101 are arranged at equal intervals, and the two ends of each opening 101 are connected through the plurality of reinforcing members 20, so that the rigidity and strength of the opening 101 of each liner 10 are improved, the deformation of the opening 101 is avoided, the effect on the welding seam of the butt joint part of two liners 10 is avoided, the welding seam is not easy to crack, the risk of failure of the welding seam is reduced, the sealing effect is ensured, the water leakage at the welding seam of the butt joint part of two liners 10 is avoided, and the service life of the liner is prolonged. Of course, in other embodiments, the plurality of reinforcing members 20 at each opening 101 may be arranged at unequal intervals, so that the rigidity and strength of the opening 101 of each liner 10 may be improved, deformation of the opening 101 is avoided, the effect on the welding seam of the butt joint part of the two liners 10 is avoided, the welding seam is not easy to crack, the risk of failure of the welding seam is reduced, the sealing effect is ensured, water leakage at the welding seam of the butt joint part of the two liners 10 is avoided, and the service life of the liner is prolonged.

In combination with fig. 4, in this embodiment, the plurality of reinforcing members 20 at each opening 101 are arranged along the axial direction of the liner body 10 at intervals, so that the connection of the plurality of reinforcing members 20 to two ends of each opening 101 can be realized, the rigidity and strength of the opening 101 of each liner body 10 are improved, the deformation of the opening 101 is avoided, the effect on the welding seam of the butt joint part of two liner bodies 10 is avoided, the welding seam is not easy to crack, the risk of failure of the welding seam is reduced, the sealing effect is ensured, the water leakage at the welding seam of the butt joint part of two liner bodies 10 is avoided, and the service life of the liner is prolonged.

In some embodiments, referring to fig. 2 and 3, the reinforcement members 20 disposed at the two opposite openings 101 are staggered, so that it is ensured that enamel liquid can flow to all surfaces of the reinforcement members 20 at each opening 101 during the coating manufacturing process, and that all surfaces of the liner 10 are covered with an enamel layer.

In this embodiment, the reinforcement members 20 disposed at the two opposite openings 101 are staggered, that is, the projections of the reinforcement members 20 disposed at the two opposite openings 101 on the radial direction of the liner 10 are completely misaligned or partially misaligned, and the gap between the reinforcement members 20 forms a gap for communicating at least two liners 10. When the projections of the reinforcing members 20 arranged at the two opposite openings 101 on the radial direction of the liner body 10 are not overlapped at all, it can be ensured that enamel liquid can flow to all surfaces of the reinforcing members 20 at each opening 101 in the coating manufacturing process, and enamel layers are covered on all surfaces of the reinforcing members 20. Fig. 8 is a schematic view showing the arrangement of the reinforcement members of the liner according to another embodiment, and in connection with fig. 8, in other embodiments, the reinforcement members 20 disposed at the two opposite openings 101 may not be staggered, that is, the projections of the reinforcement members 20 disposed at the two opposite openings 101 in the radial direction of the liner 10 coincide, and during the coating manufacturing process, enamel liquid may flow to the surfaces of the reinforcement members 20 facing away from each other at the two openings 101, so that a part of the surfaces of the reinforcement members 20 are covered with an enamel layer. In order to ensure that the enamel liquid can flow to all surfaces of the reinforcing member 20 at each opening 101, it is preferable that the projections of the reinforcing member 20 disposed at the two opposite openings 101 in the radial direction of the container body 10 are not coincident at all.

In some embodiments, in order to facilitate the butt joint of two adjacent containers 10, the reinforcement member 20 is fixedly connected with the inner wall of the container 10, that is, the peripheral edge of the reinforcement member 20 is flush with the peripheral edge of the opening 101, so that the butt joint of two adjacent containers 10 is tightly attached, the gap between two adjacent containers 10 is reduced, the welding difficulty is reduced, and the welding is facilitated.

In some embodiments, referring to fig. 4, in order to facilitate the flow of water and improve the water outlet efficiency, the width of the two ends of the reinforcing member 20 is greater than the width of the middle of the reinforcing member 20, so that a gap is formed between two adjacent reinforcing members 20 at the opposite openings 101, and water can flow in the two containers 10 through the gap, and at the same time, it is ensured that enamel liquid can flow to all surfaces of the reinforcing members 20 at each opening 101 during the coating manufacturing process, and that all surfaces of the reinforcing members 20 are covered with an enamel layer.

In some embodiments, referring to fig. 4, the cross-section of the liner 10 is arc-shaped or semicircular to form an opening 101, so that water can flow between two adjacent liners 10, and meanwhile, the liner is compact in structure and occupies less space. Of course, in other embodiments, the cross-sectional shape of the bladder 10 may be rectangular to form an opening 101 to ensure that water can flow between two adjacent bladders 10. However, from the viewpoint of making the structure of the liner compact and reducing the occupied space, the cross-sectional shape of the liner body 10 is preferably an arc shape.

Referring to fig. 1, 6 and 9, in some embodiments, the container 10 includes a cylinder 102 having an opening 101 formed therein and end caps 103 fixed to both ends of the cylinder 102, and both ends of the cylinder 102 are closed by the end caps 103.

In this embodiment, two end caps 103 are welded to two ends of the cylinder 102 respectively, so as to form the liner 10, and ensure the sealing effect of the liner 10.

In some embodiments, referring to fig. 6 and 9, to ensure that two bladders 10 are securely connected, two adjacent bladders 10 are connected by welding to form a weld 104 at the interface of the two bladders 10.

In this embodiment, the two containers 10 are butted to form a seam, and the seam is welded to form the weld 104, that is, only two ends of the butted opening 101 need to be welded, that is, the two containers 10 are connected by two straight weld seams, so as to realize a less-piece design, and the manufacturing process is less, the manufacturing process is simple, the product qualification rate is high, the manufacturing cost is low, and the manufacturability of the product is improved.

Fig. 6 is a schematic view showing the arrangement of the reinforcement member of the inner container of fig. 1. Referring to fig. 6 and 9, in some embodiments, the liner further includes at least one reinforcement member 30. At least one reinforcing piece 30 is attached to the welding line 101, two ends of the reinforcing piece 30 are positioned on two sides of the welding line 101 and are fixed on two adjacent liner bodies 10, the thickness of the welding line 101 between the two adjacent liner bodies 10 is increased through the reinforcing piece 30, so that the stress cross section area of the welding line 101 is increased, the rigidity and the bearing capacity of the welding line 101 are improved, the deformation in the pulse fatigue process is inhibited, the welding line 101 is not easy to crack, the risk of failure of the welding line 101 in the pulse fatigue is reduced, the sealing effect is ensured, water leakage at the welding line 101 of the liner is avoided, and the service life of the liner is prolonged.

Based on the same inventive concept, the present application further provides a water heater, the water heater adopts the liner, and the specific structure of the liner refers to the above embodiments, and because all the technical solutions of all the embodiments are adopted, at least all the beneficial effects brought by the technical solutions of the embodiments are provided, and are not described in detail herein.

In some embodiments, the water heater may be one of an electric water heater, a gas water heater, or a solar water heater.

In some embodiments, the water heater includes the casing, a plurality of courage bodies 10 are all located in the casing, two adjacent courage bodies 10 fixed connection, and all set up the uncovered 101 of butt joint, so that two adjacent courage bodies 10 communicate, water can flow between two courage bodies 10, and the uncovered 101 department of every courage body 10 all is provided with at least one reinforcement 20 that is connected with courage body 10, connect the both ends of uncovered 101 through reinforcement 20, the rigidity and the intensity of uncovered 101 department of every courage body 10 have been improved, avoid uncovered 101 to warp, can not cause the influence to the welding seam of two courage body 10 butt joint positions, make the welding seam be difficult for breaking apart, reduce the risk that the welding seam becomes invalid, the sealed effect has been guaranteed, avoid the welding seam department of two courage body 10 butt joint positions to appear leaking, the life of inner bag has been improved.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify 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 application.

In addition, descriptions such as those related to "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated in this application. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be regarded as not exist and not within the protection scope of the present application.

In the description of the present utility model, unless explicitly stated and limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, or may include both the first and second features not being in direct contact but being in contact by another feature therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Further, one skilled in the art can engage and combine the different embodiments or examples described in this specification.

While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the application.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.

Claims (12)

1. A liner, comprising:

at least two containers, two adjacent containers are fixedly connected, and are provided with butted openings so as to enable the two adjacent containers to be communicated; wherein, the opening department that two courage bodies butt joint is provided with the reinforcement that the staggered arrangement was arranged.

2. The liner according to claim 1, wherein at least one reinforcing member connected to the liner is provided at an opening of each liner body, and the reinforcing member is fixedly connected to the liner body or integrally formed with the liner body.

3. The liner of claim 1, wherein a plurality of said reinforcing members are disposed at each of said openings and a plurality of said reinforcing members are disposed in spaced juxtaposition.

4. A liner according to claim 3, wherein a plurality of said reinforcing members at each of said openings are equally spaced.

5. The liner according to claim 3 or 4, wherein a plurality of the reinforcing members at each of the openings are disposed at intervals along the axial direction of the liner body.

6. The liner according to any one of claims 1-4, wherein two of the reinforcement members abutting the opening are staggered, and a gap between the reinforcement members forms a gap communicating the at least two liner bodies.

7. The liner of any one of claims 1-4, wherein the reinforcement has a greater width at both ends than in a middle portion of the reinforcement.

8. The liner according to any one of claims 1-4, wherein the liner body has an arcuate or semi-circular cross-sectional shape.

9. The liner of any one of claims 1-4, wherein the liner body comprises a barrel body provided with the opening and end caps fixed at two ends of the barrel body.

10. The liner according to any one of claims 1-4, wherein two adjacent liner bodies are welded together to form a weld at the interface of the two liner bodies.

11. The liner of claim 10, further comprising at least one reinforcing member attached to the weld, wherein two ends of the reinforcing member are located on two sides of the weld and are respectively fixed to two adjacent liner bodies.

12. A water heater comprising a liner according to any one of claims 1 to 11.