CN208551306U - Fixed structure, water tank and the hot water machine of case ring - Google Patents

Abstract

The utility model provides the fixed structure, water tank and hot water machine of a kind of case ring, and the fixed structure of case ring includes: shell, is equipped with aperture；Case ring is connected to aperture, and case ring is equipped with flanging, and flanging is located at outer side of shell and is hooked on the shell, and case ring is equipped with inner hole；Pipe fitting, mating with inner hole, one in pipe fitting and case ring is equipped with back-off, another is equipped with button bit, and back-off is clamped with button bit.The fixed structure for the case ring that this programme provides, back-off is realized with button bit clamping is connected case ring with pipe fitting, middle case ring is engaged for the structure radially to limit with foam material by annular protrusion and pit compared with the existing technology, case ring and the connection reliability that pipe fitting is clamped are more preferable, it can ensure that flanging and outer surface of outer cover are fitted close to promote waterproof and dustproof effect, and axial limiting effect to case ring can be promoted, it realizes case ring anticreep, solves existing case ring and be easy the problems such as loosening, is poorly sealed.

Description

Fixed structure, water tank and the hot water machine of case ring

Technical field

The utility model relates to hot water machine field, in particular to a kind of fixed structure of case ring, a kind of water tank and A kind of hot water machine.

Background technique

Hot water machine is increasingly popularized in people live of today, and case ring can not only play beauty in the water tank of hot water machine Change because pipe fitting there are due on tank shell problem of appearance caused by aperture, and prevent the rainwater from passing through tank shell Aperture enter the effect on liner surface, in the process of implementing the utility model, it is as follows that inventor has found that the prior art exists Problem: as shown in Figure 1, being fixed using the annular protrusion 11 of 10 outer surface of case ring with the foam material in water tank in prior art Prevent case ring from loosening, which can remove the foam material for being attached to inlet and outlet pipes connector attachment before install case ring manually, Case ring could be installed up in this way, and such case ring fixed structure will cause case ring and the installation fitting of foam material is not tight And the problem of easily loosening, beauty is not only influenced, but also the entrance that will cause rainwater impacts water tank performance.

Utility model content

In order to solve the above-mentioned technical problem at least one, one of the utility model is designed to provide a kind of case ring Fixed structure.

Another of the utility model is designed to provide a kind of water tank of fixed structure with above-mentioned case ring.

The further object of the utility model is to provide a kind of hot water machine with above-mentioned water tank.

To achieve the above object, the embodiment of the utility model first aspect provides a kind of fixed structure of case ring, Include: shell, which is provided with aperture；Case ring is connected to the aperture, and the case ring is equipped with flanging, described to turn up Side is located at the outer side of shell and is hooked on the housing, and the case ring is equipped with inner hole；Pipe fitting, with the inner hole grafting Cooperation, one in the pipe fitting and the case ring is equipped with back-off, another is equipped with button bit, it is described be buckled to it is described Button bit clamping.

The fixed structure of the utility model case ring provided by the above embodiment, case ring assembly nested with pipe fitting can be right Case ring forms radial limit, in addition, the flanging of case ring is hooked on the shell, can block housing openings using flanging Gap between case ring plays and decorates dust-proof effect well, and by making flanging be hooked in outer surface of outer cover, Ke Yiqi To limit effect, case ring is prevented to continue to move axially inwards along aperture, meanwhile, back-off be clamped with button bit with realize case ring with Pipe fitting is connected, and can limit case ring and deviate from axially outward along aperture, and middle case ring and foam material are logical compared with the existing technology It crosses annular protrusion and pit is engaged for the structure radially to limit, case ring and the connection reliability that pipe fitting is clamped are more preferable, Generating a tensile stress using the clamping structure hooks flanging with outer surface of outer cover, it is ensured that flanging and outer surface of outer cover It is fitted close to promote waterproof and dustproof effect, while the axial limiting effect to case ring can be promoted, to promote case ring Anticreep effect solves existing case ring and is easy the problems such as loosening, is poorly sealed.

In addition, the fixed structure of the case ring in above-described embodiment provided by the utility model can also have following add Technical characteristic:

In above-mentioned technical proposal, one in the pipe fitting outer surface and the inner hole hole wall is equipped with pit, another It is a to be equipped with the protrusion for being suitable for cooperating with the pit intercalation.

In the present solution, one in pipe fitting outer surface and inner hole hole wall upper equipped with pit, another is equipped with suitable In the protrusion cooperated with pit intercalation, makes to form pit between pipe fitting outer surface and inner hole hole wall and protrusion is mutually twisted dress Match, plays the effect to case ring auxiliary axial limiting, further promote the Assembly stability of case ring, and pit is stung with protrusion It is conducive to form tight fit at conjunction, this not only improves the sealing compactness to gap between pipe fitting and inner hole, and extends pipe Sealed pathway between connector and inner hole can avoid the gap of dust or liquid between pipe fitting and inner hole and enter, further Strengthen water proof and dust proof effect.

In above-mentioned technical proposal, the pit or protrusion on the inner hole hole wall are the circumferential direction along the inner hole in continuous The structure of shape setting, the protrusion or pit on the pipe fitting outer surface are to set along the circumferential direction of the pipe fitting in sequential like The structure set.

In the present solution, pit or protrusion on setting inner hole hole wall are the knot along the circumferential direction of inner hole in sequential like setting Structure, protrusion or pit on pipe fitting outer surface be along pipe fitting circumferential direction be in sequential like setting structure, in this way, pit with it is convex It rises without circumferential contraposition, assembly is more convenient, and can strengthen the sealing effect between pipe fitting and inner hole, prevents dust or liquid edge Gap between pipe fitting and inner hole enters, and further strengthens water proof and dust proof effect.

Preferably, protrusion and pit are adapter structure.

In any of the above-described technical solution, the hole wall of the inner hole is equipped with the back-off.

In the present solution, back-off is arranged on the hole wall of inner hole, has the advantages that simple structure and convenient processing, and will back-off It is arranged on the hole wall of inner hole, the effect of rigidity reinforcing can be played to back-off using the circumferentially continuous structure type of inner hole, mentioned The clamping intensity and reliability for rising case ring and pipe fitting, avoid case ring from loosening.

In above-mentioned technical proposal, the structure or the back-off being buckled to along the inner hole to be circumferentially in sequential like setting For the structure for along the inner hole being circumferentially in interruption shape setting.

In the present solution, the structure that design is buckled to along inner hole to be circumferentially in sequential like setting, can further promote case ring With the clamping intensity and reliability of pipe fitting, case ring is avoided to loosen, and the structure injection molding process is more easy, is more convenient The processing and manufacturing of product, certainly, this programme is not limited thereto, and this field can also design back-off according to demand as along inner hole circumferential direction Structure in interruption shape setting makes multiple back-off arranging circumferentially-spacedly along inner hole for example, designing multiple back-offs, to be formed The back-off is circumferentially in the structure for being interrupted shape setting along inner hole.

In above-mentioned technical proposal, the back-off on the inner hole hole wall is adjacent to the end of the inner hole.

In the present solution, being set by the back-off on inner hole hole wall at the position of neighbouring interior bore ends relative to that will be buckled to For scheme between inner hole both ends at medium position, due at inner hole end position relative to elasticity at its medium position more It is good, so that the grafting assembly manipulation of pipe fitting and inner hole is easier, easy, is conducive to promote assembly efficiency, and design in this way It is smaller that the damage being subject to when clamping can be made to tip upside down on, be conducive to promote product yield.

In any of the above-described technical solution, the back-off is equipped with guiding surface.

In the present solution, being equipped with guiding surface in back-off, so that the grafting assembly manipulation of pipe fitting and inner hole is more It is easy, easy, it is conducive to be promoted assembly efficiency, and can to make to tip upside down on the damage that is subject to when clamping smaller for design in this way, conducive to mentioning Rise product yield.

In any of the above-described technical solution, the outer surface of the pipe fitting is equipped with step, and the button bit includes the step, The back-off can be hooked on the step to be limited.

In the present solution, design pipe fitting outer surface on be equipped with step, make step as button bit be used for and be buckled to clamping, Step is simple, have the advantages that it is easy to process, can be conducive to promoted product processing efficiency.

The embodiment of the utility model second aspect provides a kind of water tank, comprising: described in any of the above-described technical solution Case ring fixed structure；Liner, the pipe fitting of the fixed structure of the case ring are connected on the liner.

The utility model water tank provided by the above embodiment, by being provided with decoration described in any of the above-described technical solution The fixed structure of circle, to have all of the above beneficial effect, details are not described herein.

The embodiment of the utility model third aspect provides a kind of hot water machine, comprising: institute in any of the above-described technical solution The water tank stated.

The utility model hot water machine provided by the above embodiment, by being provided with water described in any of the above-described technical solution Case, to have all of the above beneficial effect, details are not described herein.

The additional aspect and advantage of the utility model will become obviously in following description section, or practical new by this The practice of type is recognized.

Detailed description of the invention

The above-mentioned and/or additional aspect and advantage of the utility model from the description of the embodiment in conjunction with the following figures will Become obvious and be readily appreciated that, in which:

Fig. 1 is the schematic cross-sectional view of existing case ring；

Fig. 2 is the broken section structural schematic diagram of hot water machine described in the utility model one embodiment；

Fig. 3 is the enlarged structure schematic diagram of A portion shown in Fig. 2；

Fig. 4 is the schematic cross-sectional view of case ring described in the utility model one embodiment；

Fig. 5 is the enlarged structure schematic diagram of B portion shown in Fig. 4；

Fig. 6 is the schematic cross-sectional view of pipe fitting described in the utility model one embodiment；

Fig. 7 is the enlarged structure schematic diagram of C portion shown in Fig. 6.

Wherein, the appended drawing reference in Fig. 1 and the corresponding relationship between component names are as follows:

10 case rings, 11 annular protrusions.

Wherein, the corresponding relationship between appended drawing reference and component names of the Fig. 2 into Fig. 7 are as follows:

21 shells, 211 apertures, 22 case rings, 221 inner holes, 222 flangings, 223 back-offs, 224 protrusions, 225 guiding are oblique Face, 23 pipe fittings, 231 steps, 232 pits, 24 liners, 25 foam materials.

Specific embodiment

In order to be more clearly understood that the above objects, features, and advantages of the utility model, with reference to the accompanying drawing and have The utility model is further described in detail in body embodiment.It should be noted that in the absence of conflict, this Shen The feature in embodiment and embodiment please can be combined with each other.

Many details are explained in the following description in order to fully understand the utility model, still, this is practical Novel to be implemented using other than the one described here other modes, therefore, the protection scope of the utility model is simultaneously It is not limited by the specific embodiments disclosed below.

Referring to fixed structure, the water tank of Fig. 2 to Fig. 7 description case ring according to some embodiments of the utility model And hot water machine.

As shown in Figures 2 to 7, the fixed structure for the case ring 22 that the embodiment of the utility model first aspect provides, packet It includes: shell 21, case ring 22 and pipe fitting 23.

Specifically, shell 21 is equipped with aperture 211；Case ring 22 is connected to aperture 211, and case ring 22 is equipped with flanging 222, flanging 222 is located at 21 outside of shell and relies on shell 21, and case ring 22 is equipped with inner hole 221；Pipe fitting 23 with it is interior Hole 221 is mating, and one in pipe fitting 23 and case ring 22 is equipped with back-off 223, another is equipped with button bit, back-off 223 are clamped with button bit.

Preferably, flanging 222 is located at the head end position of inner hole 221, and back-off 223 is located at the terminal position of inner hole 221 Place.

The fixed structure of the utility model case ring 22 provided by the above embodiment, the dress nested with pipe fitting 23 of case ring 22 With radial limit can be formed to case ring 22, in addition, the flanging 222 of case ring 22 relies on shell 21, flanging is utilized 222 can block the gap between 21 aperture 211 of shell and case ring 22, play and decorate dust-proof effect well, and by making Flanging 222 is hooked in 21 outer surface of shell, can play limit effect, and case ring 22 is prevented to continue axially inwards along aperture 211 Movement, meanwhile, back-off 223, to realize that case ring 22 is connected with pipe fitting 23, can limit case ring 22 along opening with button bit clamping Hole 211 is deviate from axially outward, and middle case ring 22 is stung with foam material by annular protrusion 224 and pit 232 compared with the existing technology For closing the structure radially to limit, case ring 22 and the connection reliability that pipe fitting 23 is clamped are more preferable, using the clamping knot Structure, which generates a tensile stress, hooks flanging 222 with 21 outer surface of shell, it is ensured that flanging 222 and 21 outer surface of shell are close Cooperation can promote the axial limiting effect to case ring 22 to promote waterproof and dustproof effect, to promote case ring 22 Anticreep effect solves existing case ring 22 and is easy the problems such as loosening, is poorly sealed.

In one embodiment of the utility model, as shown in Figures 2 to 7,221 hole wall of 23 outer surface of pipe fitting and inner hole In one be equipped with pit 232, another, which is equipped with, is suitable for the protrusion 224 that cooperates with 232 intercalation of pit, makes outside pipe fitting 23 Pit 232 is formed between 221 hole wall of surface and inner hole and protrusion 224 is mutually twisted assembly, plays and axial direction is assisted to case ring 22 The effect of limit, further promotes the Assembly stability of case ring 22, and extends the sealing between pipe fitting 23 and inner hole 221 Path can avoid the gap of dust or liquid between pipe fitting 23 and inner hole 221 and enter, further strengthens water proof and dust proof effect Fruit.

It is highly preferred that protrusion 224 is arc convex, pit 232 is arc pit.

Preferably, as shown in Figure 4 and Figure 5, the pit 232 on 221 hole wall of inner hole or protrusion 224 is along the weeks of inner hole 221 To the structure being arranged in sequential like, as shown in Figure 6 and Figure 7, protrusion 224 or pit 232 on 23 outer surface of pipe fitting are along pipe The circumferential direction of connector 23 is in the structure of sequential like setting, in this way, pit 232 and protrusion 224 are without circumferential contraposition, assembly is more convenient, And the sealing effect between pipe fitting 23 and inner hole 221 can be strengthened, prevent dust or liquid between pipe fitting 23 and inner hole 221 Gap enter, further strengthen water proof and dust proof effect.

Preferably, as shown in Figures 2 and 3, protrusion 224 and pit 232 are adapter structure.

In one embodiment of the utility model, as shown in Figure 4 and Figure 5, the hole wall of inner hole 221 is equipped with back-off 223, Have the advantages that simple structure and convenient processing, and back-off 223 is arranged on the hole wall of inner hole 221, connects using inner hole 221 is circumferential Continuous structure type can play the effect of rigidity reinforcing to back-off 223, promote the clamping intensity of case ring 22 and pipe fitting 23 And reliability, avoid case ring 22 from loosening.

In one embodiment of the utility model, as shown in Figure 4 and Figure 5, back-off 223 is circumferential in company along inner hole 221 The structure of continuous shape setting, can further promote the clamping intensity and reliability of case ring 22 Yu pipe fitting 23 in this way, avoid decorating Circle 22 loosens, and the structure injection molding process is more easy, is more convenient the processing and manufacturing of product, certainly, this programme not office It is limited to this, this field can also design back-off 223 to be circumferential in the structure for being interrupted shape setting along inner hole 221, for example, setting according to demand Multiple back-offs 223 are counted, make 223 arranging circumferentially-spacedly along inner hole 221 of multiple back-offs, to form the back-off 223 along inner hole 221 The circumferential structure in interruption shape setting.

In one embodiment of the utility model, as shown in Figure 4 and Figure 5, the back-off 223 on 221 hole wall of inner hole is neighbouring Back-off 223 on 221 hole wall of inner hole is also set at the position of neighbouring 221 end of inner hole by the end of inner hole 221, relative to Back-off 223 is set to for the scheme between 221 both ends of inner hole at medium position, due at 221 end position of inner hole relative to Elasticity is more preferable at its medium position, so that pipe fitting 23 and the grafting assembly manipulation of inner hole 221 are easier, easy, are conducive to Assembly efficiency is promoted, and the damage that such design can be such that back-off 223 is subject in clamping is smaller, is conducive to promotion product non-defective unit Rate.

In one embodiment of the utility model, as shown in Figure 4 and Figure 5, back-off 223 is equipped with guiding surface 225, this Sample makes pipe fitting 23 and the grafting assembly manipulation of inner hole 221 easier, easy, is conducive to promote assembly efficiency, and design in this way The damage that back-off 223 can be made to be subject in clamping is smaller, is conducive to promote product yield.

In one embodiment of the utility model, as shown in Figure 6 and Figure 7, the outer surface of pipe fitting 23 is equipped with step 231, button bit includes step 231, and back-off 223 can be hooked on step 231 to be limited.

In the present solution, design pipe fitting 23 outer surface on be equipped with step 231, make step 231 as button bit be used for 223 clamping of back-off, step 231 is simple, has the advantages that easy to process, can be conducive to the processing efficiency of promotion product.

It is highly preferred that the surface that step 231 is used to be clamped with back-off 223 is fillet surface, specially contra bevel.

In a specific embodiment of the utility model, the fixed structure of case ring 22 include case ring 22, shell 21, Pipe fitting 23, as shown in Figures 2 and 3,23 intercalation of pipe fitting is in the inner hole 221 of case ring 22, case ring 22 and pipe fitting 23 Between connection structure include clamping structure and occlusion structure, more specifically, case ring 22 uses PE material, such as Fig. 4 and Fig. 5 institute Show, an arc convex 224 is equipped on the surface that case ring 22 is used to contact with pipe fitting 23, namely in 22 inner hole of case ring An arc convex 224 is produced on 221 hole wall, and the back-off of an overhead kick shape is in addition equipped in the end of case ring 22 223, as shown in Figure 6 and Figure 7, an arc-shaped pit 232 is arranged in the cylindrical outer surface of pipe fitting 23, and arc-shaped pit 232 is used It is coupled in the arc convex 224 on 22 inner hole of case ring, 221 hole wall.Case ring 22 during installation, 221 hole wall of inner hole On arc convex 224 and the arc pit 232 on 23 outer surface of pipe fitting cooperate, similar straight pin can be played and straight pin is fixed The effect of position slot can preferably solve the case ring 22 of 22 installation process of case ring appearance and being bonded not for 21 surface of tank shell Tight problem.In addition the end setting back-off 223 of case ring 22, in the chamfering of assembly 23 outer surface step 231 of Shi Nengyu pipe fitting Face cooperation prevents loosening for case ring 22.Preferably, pipe fitting 23 is water supply connector or is water outlet connector.

Case ring 22 both can solve case ring 22 with 23 connection structure of pipe fitting and be bonded with water tank outer surface in the present embodiment Not tight problem, while can effectively prevent the loosening of case ring 22.While optimizing decorative effect, can more effectively it prevent Corrosion of the intrusion of external rainwater to the heat-exchanger rig on 24 surface of inner water tank 24 and liner, to improve water tank service life.

As shown in Fig. 2, the water tank that the embodiment of the utility model second aspect provides, comprising: any of the above-described technical solution Described in case ring 22 fixed structure and liner 24, the pipe fitting 23 of the fixed structure of case ring 22 is connected to liner 24 On.

More specifically, as shown in Fig. 2, liner 24 is located in the shell 21 of the fixed structure of case ring 22, it is preferable that inside Foam material 25 is additionally provided between gallbladder 24 and shell 21, foam material 25 can connect with case ring 22 and can also be not connected to.

The utility model water tank provided by the above embodiment, by being provided with decoration described in any of the above-described technical solution The fixed structure of circle 22, to have all of the above beneficial effect, details are not described herein.

The hot water machine that the embodiment of the utility model third aspect provides, comprising: described in any of the above-described technical solution Water tank.

The utility model hot water machine provided by the above embodiment, by being provided with water described in any of the above-described technical solution Case, to have all of the above beneficial effect, details are not described herein.

In conclusion the fixed structure of case ring provided by the utility model, water tank and hot water machine, case ring and pipe fitting Nesting assembly can form radial limit to case ring, in addition, the flanging of case ring is hooked on the shell, it can be with using flanging The gap between housing openings and case ring is blocked, plays and decorates dust-proof effect well, and by making flanging be hooked in shell Outer surface can play limit effect, and case ring is prevented to continue to move axially inwards along aperture, meanwhile, back-off is clamped with button bit To realize that case ring is connected with pipe fitting, case ring can be limited and deviate from axially outward along aperture, and compared with the existing technology in Case ring is engaged for the structure radially to limit with foam material by annular protrusion and pit, the company of case ring and pipe fitting clamping Better reliability is connect, generating a tensile stress using the clamping structure hooks flanging with outer surface of outer cover, it is ensured that turns up Side and outer surface of outer cover are fitted close to promote waterproof and dustproof effect, while can promote the axial limiting effect to case ring, from And the anticreep effect of case ring is promoted, it solves existing case ring and is easy the problems such as loosening, is poorly sealed.

In the present invention, term " first ", " second " are only used for the purpose of description, and should not be understood as instruction or dark Show relative importance；Term " multiple " then refers to two or more, unless otherwise restricted clearly.Term " installation ", " phase Even ", the terms such as " connection ", " fixation " shall be understood in a broad sense, for example, " connection " may be a fixed connection, be also possible to removable Connection is unloaded, or is integrally connected；" connected " can be directly connected, can also be indirectly connected through an intermediary.For ability For the those of ordinary skill in domain, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.

In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc. Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least the one of the utility model In a embodiment or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment Or example.Moreover, the particular features, structures, materials, or characteristics of description can be in any one or more embodiment or examples In can be combined in any suitable manner.

The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.

Claims (10)

1. a kind of fixed structure of case ring characterized by comprising

Shell which is provided with aperture；

Case ring is connected to the aperture, and the case ring is equipped with flanging, and the flanging is located at the outer side of shell simultaneously It is hooked on the housing, the case ring is equipped with inner hole；

Pipe fitting, mating with the inner hole, one in the pipe fitting and the case ring is equipped with back-off, another It is equipped with button bit, the back-off is clamped with the button bit.

2. the fixed structure of case ring according to claim 1, which is characterized in that

One in the pipe fitting outer surface and the inner hole hole wall is equipped with pit, another be equipped be suitable for it is described recessed Cheat the protrusion of intercalation cooperation.

3. the fixed structure of case ring according to claim 2, which is characterized in that

The pit or protrusion on the inner hole hole wall are the structure along the circumferential direction of the inner hole in sequential like setting, the pipe The protrusion or pit on connector outer surface are the structure being arranged along the circumferential direction of the pipe fitting in sequential like.

4. the fixed structure of case ring according to any one of claim 1 to 3, which is characterized in that

The hole wall of the inner hole is equipped with the back-off.

5. the fixed structure of case ring according to claim 4, which is characterized in that

The back-off is between being circumferentially in along the inner hole along the inner hole for the structure for being circumferentially in sequential like setting or the back-off The structure of disconnected shape setting.

6. the fixed structure of case ring according to claim 4, which is characterized in that

The back-off on the inner hole hole wall is adjacent to the end of the inner hole.

7. the fixed structure of case ring according to any one of claim 1 to 3, which is characterized in that

The back-off is equipped with guiding surface.

8. the fixed structure of case ring according to any one of claim 1 to 3, which is characterized in that

The outer surface of the pipe fitting is equipped with step, and the button bit includes the step, and the back-off can be hooked in the step On to be limited.

9. a kind of water tank characterized by comprising

Such as the fixed structure of case ring described in any item of the claim 1 to 8；

Liner, the pipe fitting of the fixed structure of the case ring are connected on the liner.

10. a kind of hot water machine, which is characterized in that including water tank as claimed in claim 9.