CN207086764U - Hem interlock structure, shell structure and water heater - Google Patents
Hem interlock structure, shell structure and water heater Download PDFInfo
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- CN207086764U CN207086764U CN201721013597.9U CN201721013597U CN207086764U CN 207086764 U CN207086764 U CN 207086764U CN 201721013597 U CN201721013597 U CN 201721013597U CN 207086764 U CN207086764 U CN 207086764U
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- flanging
- plate portion
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- bending
- shell structure
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 8
- 238000005452 bending Methods 0.000 claims abstract description 38
- 239000000463 material Substances 0.000 claims description 52
- 238000005096 rolling process Methods 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 description 21
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000035772 mutation Effects 0.000 description 4
- 238000003672 processing method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002648 laminated material Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 241000406668 Loxodonta cyclotis Species 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
The utility model provides a hem interlock structure, shell structure and water heater. The folded edge meshing structure comprises a first plate part and a second plate part, wherein a first folded edge is arranged at the edge of the first plate part, a second folded edge is arranged at the edge of the second plate part, the first folded edge and the second folded edge are mutually hooked and meshed together, a bending or bending structure is arranged on the first plate part and/or the second plate part, the bending or bending structure passes through a position where the folded edge is formed, and a notch is formed in the area where the bending or bending structure is formed in the first folded edge and/or the second folded edge, so that the thickness of the area where the bending or bending structure is formed in the meshing position is reduced, the problems of severe stress concentration and severe deformation caused by the stress concentration in the meshing position area are avoided, and the appearance of a product is ensured.
Description
Technical field
It the utility model is related to shell structure manufacture field, and in particular to a kind of fold occlusal structure, shell structure and heat
Hydrophone.
Background technology
The process of tank shell is generally at present, using one piece or multi-sheets edge rolling and is connected and to be formed both ends and open
The cylinder of mouth, end cap then is installed at the both ends of cylinder, so as to which the shell of water tank be made.In the manufacture of existing tank shell
Cheng Zhong, after end cap and cylinder assembling, the problem of gap between end cap and cylinder is uneven, have a strong impact on tank shell
Production efficiency and product outward appearance.
Utility model content
In view of this, one of the purpose of this utility model is to provide a kind of fold occlusal structure, can effectively avoid
Existing stress concentration phenomenon is serious when bending or warp architecture are formed on the occlusal position of two-part structure, serious become occurs
The problem of shape, while propose a kind of shell structure and water heater for improving product appearance, improving production efficiency.
To reach above-mentioned purpose, on the one hand, the utility model uses following technical scheme：
A kind of fold occlusal structure, including the first plate portion and the second plate portion, the edge of first plate portion are provided with first
Flanging, the edge of second plate portion are provided with the second flanging, and first flanging hook joint mutual with second flanging is simultaneously stung
It is combined, bending or warp architecture, bending or the bending knot is provided with first plate portion and/or second plate portion
Structure passes through the position for forming the occlusion, first flanging and/or second flanging and is forming bending or the bending knot
The region of structure sets jagged.
On the other hand, the utility model uses following technical scheme：
A kind of shell structure, including cylinder and the end cap for being arranged at the cylinder both ends, the cylinder is by least one piece
Sheet material is enclosed to be formed, and two parts that the cylinder forms connection in the circumferential are connected to by fold occlusal structure as described above
Together, the two parts for forming connection respectively constitute first plate portion and second plate portion.
Preferably, the bending or warp architecture form the buckling groove that the end cap is engaged with the cylinder.
Preferably, in the axial direction of the cylinder, the two edges of the breach are located at the both sides of the buckling groove respectively.
Preferably, in the axial direction of the cylinder, the gap extension extremely connects with the end edge of the cylinder.
Preferably, the breach being arranged on first flanging extends in first plate portion in the circumferential；And/or
The breach being arranged on second flanging extends in second plate portion in the circumferential.
Preferably, in the cylinder radially, in the region formed with the breach, first plate portion and described the
Two plate portions at least subregion is overlapped.
Preferably, at least one end of the cylinder is provided with choke, and the buckling groove is formed on the choke.
Preferably, the opening end of the end cap has been bent to form holding section to radially inner side, and the holding section is caught in described
In buckling groove, the end cap is connected with the cylinder.
Preferably, first flanging forms the radially inner side in first plate portion, and second flanging is formed in institute
The radial outside of the second plate portion is stated, second plate portion forms what is be recessed radially inward in the side of setting second flanging
Inner fovea part, first flanging and second flanging are respectively positioned in the inner fovea part.
Preferably, the cylinder includes at least two blocks of sheet materials being stitched together, in the circumferential, each plate in the circumferential
The two edges of material are connected with the edge of other adjacent sheet materials by the fold occlusal structure respectively.
Another further aspect, the utility model use following technical scheme：
A kind of water heater, including tank shell, the tank shell are shell structure as described above.
In fold occlusal structure provided by the utility model, the first flanging, the second flanging are forming bending or warp architecture
Region breach is set, so as to reduce thickness of the occlusal position in the region for forming bending or warp architecture, and then avoid
Occlusal position region forms the gross distortion problem that serious stress concentration and stress are concentrated and occurred, and ensures outside product
See.
Brief description of the drawings
By the description to the utility model embodiment referring to the drawings, of the present utility model above-mentioned and other mesh
, feature and advantage will be apparent from, in the accompanying drawings：
Fig. 1 shows the schematic diagram of tubular structure；
Fig. 2 shows the enlarged drawing at A in Fig. 1；
Fig. 3 shows the forming process schematic diagram of fold occlusal structure；
Fig. 4 shows choke and buckling groove forming process schematic diagram；
Fig. 5 shows that existing tubular structure forms the sectional view of buckling groove in occlusal position；
Fig. 6 shows that the fold occlusal structure that the utility model embodiment provides is being not provided with bending or is bending knot
The sectional view in the region of structure；
Fig. 7 shows that the fold occlusal structure that the utility model embodiment provides is setting bending or warp architecture
The sectional view in region；
Fig. 8 shows the sectional view of a part of structure for the tank shell that the utility model embodiment provides；
Fig. 9 shows the structural representation of the tubular structure of tank shell in a kind of embodiment of the utility model；
Figure 10 shows the enlarged drawing at B in Fig. 9；
Figure 11 show C-C in Fig. 9 to partial sectional view；
Figure 12 show D-D in Fig. 9 to partial sectional view；
Figure 13 shows the cylinder of the formation of tubular structure shown in Fig. 9 and the sectional view at end cap cooperation；
Figure 14 shows the cylinder of tank shell and the sectional view at end cap cooperation in the utility model another embodiment；
Figure 15 shows that structure shown in Fig. 9 carries out the schematic diagram of necking processing；
Figure 16 shows that structure shown in Figure 14 carries out the schematic diagram of necking processing；
Figure 17 show E-E in Fig. 9 to partial sectional view；
Figure 18 shows that the sheet material breach in a kind of embodiment of the utility model cuts schematic diagram；
Figure 19 shows that the sheet material breach in the utility model another embodiment cuts schematic diagram.
In figure, 1, sheet material；11st, the first flanging；12nd, the second flanging；13rd, breach；14th, the first plate portion；15th, the second plate portion；
151st, inner fovea part；2nd, tubular structure；3rd, cylinder；31st, choke；32nd, buckling groove；4th, end cap；41st, holding section；5th, shaping cam；
6th, it is molded concave wheel.
Embodiment
The utility model is described below based on embodiment, it should be understood by one skilled in the art that carrying herein
The accompanying drawing of confession is provided to the purpose of explanation, and accompanying drawing is not necessarily drawn to scale.
Unless the context clearly requires otherwise, otherwise entire disclosure is similar with the " comprising " in claims, "comprising" etc.
Word should be construed to the implication included rather than exclusive or exhaustive implication；That is, it is containing for " including but is not limited to "
Justice.
In description of the present utility model, it is to be understood that term " first ", " second " etc. are only used for describing purpose,
And it is not intended that instruction or hint relative importance.In addition, in description of the present utility model, it is unless otherwise indicated, " more
It is individual " it is meant that two or more.
It is uneven for assembling the gap between rear end cap and barrel body end cover present in existing tank shell manufacturing process
The problem of, caused by the application is the discovery that thickness of the cylinder due to tank shell at connecting position is excessive.Specifically, cylinder
Processing method be, by a sheet material carry out edge rolling processing, then the two edges of sheet material are existed by a fold occlusal structure bites
Together, specifically, as shown in Figure 1 to Figure 3, first flanging 11 is set in a lateral edges of sheet material 1, the first flanging 11 is to sheet material
1 radially inner side bending, second flanging 12, radial outside of second flanging 12 to sheet material 1 are set in another lateral edges of sheet material 1
Bending, as shown in figure 3, the first flanging 11 and 12 mutual hook joint of the second flanging and be interlocked, it is as shown in Figure 1 so as to be formed
Tubular structure 2, necking processing then is carried out to the both ends of tubular structure 2, form choke, while formed and fastened on choke
Groove, so that installation end cap uses.The forming process of choke and buckling groove to tubular structure 2 as shown in figure 4, for carrying out necking
The necking equipment of processing include positioned at the radial outside of tubular structure 2 shaping cam 5 and positioned at the radially inner side of tubular structure 2 into
Type concave wheel 6, driving tubular structure 2 is rotatable around its axis, and shaping cam 5 and shaping concave wheel 6 radially reciprocate, so as to by cylinder
The part that shape structure 2 is located between shaping cam 5 and shaping concave wheel 6 is shaped to the structure shown in Fig. 4, i.e., in tubular structure 2
End forms choke 31, and the buckling groove 32 of annular is formed on choke 31, so as to obtain cylinder 3.Due in tubular knot
It is the thickness of single plate material at other structures on structure 2 in addition to the position for forming occlusion, and as shown in figure 5, in the position of occlusion
Thickness of the place for four laminate materials is put, therefore when tubular structure 2 goes to occlusal position and shaping cam 5 and the shaping phase interaction of concave wheel 6
Used time, because the material thickness at occlusal position is undergone mutation, stress concentration phenomenon on the one hand can be produced, on the other hand, thickness
Mutation can cause shaping cam 5 and be molded concave wheel 6 bounce aggravation so that shaping cam 5 and shaping concave wheel 6 between engaging
Undergo mutation in gap so that the cylinder 3 after shaping shaping exception occurs in occlusal position.
In view of the above-mentioned problems, the utility model provides a kind of fold occlusal structure, as shown in Figure 6 and Figure 7, including first
The plate portion 15 of plate portion 14 and second, wherein, the edge of the first plate portion 14 is provided with the first flanging 11, and the edge of the second plate portion 15 is set
There is the second flanging 12, the overbending direction of two flangings is on the contrary, for example in the embodiment shown in fig. 6, the first flanging 11 is formed
The downside of one plate portion 14, the second flanging 12 are formed in the upside of the second plate portion 15, orientation of the upper and lower orientation with reference to shown in figure 6, the
One flanging 11 and 12 mutual hook joint of the second flanging are simultaneously interlocked, i.e., the first flanging 11 is inserted into the second flanging 12 and the second plate
Between portion 15, the second flanging 12 is inserted between the first flanging 11 and the first plate portion 14, in this way, realizing the first plate portion 14 and the second plate
Connection between portion 15, being provided with the first plate portion 14 and the second plate portion 15 makes it produce the bending of deformation or warp architecture,
Bending or warp architecture can pass through the first plate portion 14 and the second plate portion 15 forms the position of occlusion, in this way, as shown in fig. 7, the
The formation bending of one flanging 11 and/or the second flanging 12 or the region of warp architecture form breach 13, so as to reduce occlusal position
Thickness in the region of bending or warp architecture, for example, the first flanging 11 and the second flanging 12 are forming bending or bending knot
The region of structure is respectively formed breach 13, in this way, as shown in fig. 7, the first flanging 11 and the second flanging 12, which avoid, opens bending or bending
Structure so that material thickness of the occlusal position in bending or the region of warp architecture is reduced to materials at two layers, so as to solve because
Molding effect is poor caused by formation bending or warp architecture, influences the problem of assembling and stress concentration phenomenon are serious.Easily
Understand, the first flanging 11 described herein is not belonging to the structure of the first plate portion 14, and the second flanging 12 is not belonging to the second plate portion
15 structure.
The fold occlusal structure can be applied in any structure that above mentioned problem be present.For example, it can be applied to specific
In the shell structure of structure type such as tank shell.Specific structure form is to include the cylinder 3 of open at both ends and by cylinder 3
Open at both ends closing end cap 4.The concrete structure of shell structure is specifically introduced by taking tank shell as an example below, as shown in figure 8,
Tank shell includes cylinder 3 and is arranged at the end cap 4 at the both ends of cylinder 3, and cylinder 3 is enclosed by one block of sheet material 1 and formed, enclosing herein
Refer to that sheet material 1 is bent or bent in the circumferential so as to surround tubular structure, tubular structure for example can be cylinder or other
The tubular (such as square, triangle, polygon etc.) of shape, when cylinder 3 is formed as cylinder, cylinder 3 is led to by one block of sheet material 1
The mode for crossing edge rolling surrounds, and cylinder 3 forms two parts of connection in the circumferential, i.e., the interface of sheet material 1 in the circumferential, which is formed, connects
The two parts connect are linked together by fold occlusal structure, and the two parts for forming connection respectively constitute the first above-mentioned plate
The plate portion 15 of portion 14 and second.Wherein, the edge of the first plate portion 14 is bent to form the first flanging 11, the second plate portion 15 to radially inner side
Edge be bent to form the second flanging 12 to radial outside, as shown in figure 17,12 mutual hook joint of the first flanging 11 and the second flanging
And it is interlocked so that the part relative with the first flanging 11 is parallel to each other on the first flanging 11 and the first plate portion 14, and second
The part relative with the second flanging 12 is parallel to each other in the plate portion 15 of flanging 12 and second, so as to which sheet material 1 is surrounded into a circumferential envelope
The tubular structure 2 closed.
As shown in figure 8, being provided with the buckling groove 32 for being engaged with end cap 4 on the lateral surface of cylinder 3, buckling groove 32 is in
Along the annular groove of the circumferentially extending of cylinder 3, the open end of end cap 4 can form clamping with buckling groove 32.Preferably, such as Fig. 8 institutes
Show, the open end of end cap 4 has been bent to form holding section 41 to radially inner side, and holding section 41 can be caught in buckling groove 32, will
End cap 4 links together with cylinder 3.It is located in for convenience of end cap 4 on cylinder 3, the both ends of cylinder 3 are provided with choke
31 so that the direction radial dimension of cylinder 3 axially outward is gradually reduced, consequently facilitating cylinder 3 loads in end cap 4.Buckling groove
32 form in the radial outer side of choke 31, are recessed by the radial outer side of choke 31.Choke 31 and button
Closing before the forming process of groove 32 had had description, will not be repeated here.
Because buckling groove 32 is annular groove, therefore buckling groove 32 can pass through the first flanging 11 and is engaged with the formation of the second flanging 12
Position, buckling groove 32 is foregoing bending or warp architecture, due to being the thickness of four laminate materials in the position, shape here
It will certainly cause stress concentration phenomenon (referring to description above) into buckling groove 32, therefore, as shown in figure 13 and figure 14, first
The flanging 12 of flanging 11 and/or second sets jagged 13 in the region for forming buckling groove 32, to reduce the thickness of occlusal position, makes
On cylinder 3 in the region that buckling groove 32 is set, material thickness rate in the circumferential is more uniform, it is preferable that the first flanging 11 and the
Two flangings 12 are provided with breach 13 in the region for forming buckling groove 32, in this way, forming the area of buckling groove 32 at occlusal position
The thickness of domain material is reduced to the thickness of two layers of sheet material, so, when processing forms choke 31 and buckling groove 32, in circumference
Thickness change is changed into individual layer material thickness → twice of material thickness → individual layer material thickness from original individual layer material thickness → tetra- times of material thickness → individual layer material thickness,
Expect that thick variable gradient substantially slows down, the stress concentration phenomenon in necking equipment process can be reduced.
In the axial direction of cylinder 3, the two edges of breach 13 are located near the two edges of buckling groove 32, it is preferable that breach 13
Two edges be located at the both sides of buckling groove 32 respectively, i.e. the two edges of breach 13 are certain apart from the both sides of the edge of buckling groove 32 respectively
Distance so that occur shape mutation the region for being remotely located from four layers of sheet metal thickness, further avoid stress concentration from showing
The generation of elephant.In one embodiment, as shown in Fig. 9 to Figure 13, breach 13 extends to be connected with the end edge of cylinder 3, then
As shown in figure 15 when carrying out necking processing, in another embodiment, as shown in figure 14, breach 13 is not extend to and cylinder 3
End edge connection, then it is as shown in figure 16 when carrying out necking processing, two ways can reach elimination forming process in
Shake aggravation, lifts uniform in shaping when briquetting roller passes through occlusal position, prevents the effect of hidden danger of quality.Breach 13 extend to
The end edge of cylinder 3, which is communicatively set, can more facilitate cutting for raw material, and breach 13 is not extend to the end with cylinder 3
Edge connection then causes the first flanging 11 and the second flanging 12 also to form occlusion in the end of cylinder 3, so as to avoid being molded
During due to the end of cylinder 3 lack constraint and open.
To ensure the planarization of the outward appearance of cylinder 3, it is preferable that as shown in figure 17, the second plate portion 15 is setting the second flanging 12
Side form the inner fovea part 151 that is recessed radially inward, the first flanging 11 and the second flanging 12 are respectively positioned in inner fovea part 151,
So that the part that the removing of the second plate portion 15 forms inner fovea part 151 is concordant with the radial outer side holding of the first plate portion 14.
It is further preferred that in order to reduce the thick regions of two times of material of the process of buckling groove 32 as far as possible, it is preferable that be arranged on the
Breach 13 on one flanging 11 extends in the first plate portion 14 in the circumferential, i.e., also forms a part of breach in the first plate portion 14
13, and/or, the breach 13 being arranged on the second flanging 12 extends in the second plate portion 15 in the circumferential, i.e., in the second plate portion 15
On also form a part of breach 13, so so that the thick regions of two times of material that buckling groove 32 passes through reduce.In one embodiment
In, forming the edge flush in jagged 13 region, the first plate portion 14 and the second plate portion 15 in cylinder 3 radially, or
Person, forming the region of breach 13, the first plate portion 14 and the second plate portion 15 at least subregion phase in cylinder 3 radially
It is mutually overlapping, avoid forming gap at occlusion when carrying out fold occlusal, the size specifically overlapped can be according to of binding site
Opening amount is configured.Preferably, (can be contrasted as shown in Figure 11 with Figure 17), dotted portion is barbed portion, is formed first
The size of breach 13 in the circumferential on flanging 11 is equal with the first flanging 11, and the breach 13 formed on the second flanging 12 extends
To the second plate portion 15, breach 13 is located at the chi for being dimensioned slightly smaller than the second flanging 12 of part in the circumferential in the second plate portion 15
It is very little, reduce two times of thick regions of material as far as possible on the premise of ensureing to occur without gap at occlusion.
The processing method of the application tank shell is：
The one block of sheet material 1 and two end caps 4 for forming cylinder 3 are provided；
Place's breach 13 is cut on sheet material 1, breach 13 can be the edge for extending to sheet material 1 as shown in Figure 18, with
Form tube structure as shown in fig. 13 that or do not extend to the edge of sheet material 1 as shown in Figure 19, then it is ultimately formed
The structure of cylinder 3 it is as shown in figure 14；
After cutting the edge rolling of sheet material 1 (when the cross section of cylinder is non-disc, can such as bending by other means
Mode encloses to form tubular structure), two end edges of the sheet material 1 after edge rolling in the circumferential are then subjected to fold occlusal
(with reference to the mode shown in figure 3), so as to form circumferentially closed tubular structure 2；
Necking equipment is used to carry out necking to the both ends of tubular structure 2 to form choke 31, and simultaneously in choke
Buckling groove 32 is formed on 31, so as to which the cylinder 3 of tank shell be made；
Two end caps 4 are fastened on to the both ends of cylinder 3, so as to which tank shell be made.
Wherein, the process for being carried out necking processing to tubular structure 2 using necking equipment is above being discussed in detail,
This is repeated no more, especially, when shaping cam 5 with shaping concave wheel 6 back lash be more than material thicker than it is more when, due to shaping when without
Method is brought into close contact workpiece, it is possible to shaping position can be caused uneven, shaping is uneven, it is preferable that determines the thickness of sheet material 1
Justice is t, and the minimum back lash between shaping cam 5 and shaping concave wheel 6 is less than or equal to 2t, in this way, being lacked when tubular structure 2 is set
It can be compacted when at the occlusion of mouth 13 by between two briquetting rollers, it is further preferred that minimum back lash is in 0.7t to 2t
In the range of, it so, it is possible to take into account the region that individual layer material is thick and twice of material is thick, avoid generation briquetting roller bounce is violent from showing
As.
It is, of course, understood that the sheet material 1 for forming cylinder 3 can be one piece, or circumferentially be stitched together
Polylith, can be configured according to the size of raw material, when cylinder 3 is spliced by multi-sheets, in the circumferential, each sheet material
Two edges be connected respectively with the edge of other adjacent sheet materials by the fold occlusal structure, its process is with sheet material
It is similar at one piece, it will not be repeated here.
Further, present invention also provides a kind of water heater, including above-mentioned tank shell, tank shell preferably to use
Above-mentioned processing method is processed, production efficiency height and good product quality.
For those skilled in the art it is easily understood that on the premise of not conflicting, above-mentioned each preferred scheme can be free
Ground combination, superposition.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this area
For technical staff, the utility model can have various changes and change.All institutes within spirit of the present utility model and principle
Any modification, equivalent substitution and improvements of work etc., should be included within the scope of protection of the utility model.
Claims (12)
1. a kind of fold occlusal structure, it is characterised in that including the first plate portion and the second plate portion, the edge of first plate portion is set
The first flanging is equipped with, the edge of second plate portion is provided with the second flanging, and first flanging and second flanging are mutual
Hook joint is simultaneously interlocked, and bending or warp architecture, the bending are provided with first plate portion and/or second plate portion
Or warp architecture passes through the position for forming the occlusion, first flanging and/or second flanging and is forming the bending
Or the region setting of warp architecture is jagged.
2. a kind of shell structure, including cylinder and the end cap for being arranged at the cylinder both ends, it is characterised in that the cylinder by
At least one block of sheet material encloses to be formed, and the cylinder forms two parts of connection by rolling over as claimed in claim 1 in the circumferential
Side occlusion structure links together, and the two parts for forming connection respectively constitute first plate portion and second plate portion.
3. shell structure according to claim 2, it is characterised in that the bending or warp architecture form the end cap with
The buckling groove that the cylinder is engaged.
4. shell structure according to claim 3, it is characterised in that in the axial direction of the cylinder, the two of the breach
Edge is located at the both sides of the buckling groove respectively.
5. shell structure according to claim 3, it is characterised in that in the axial direction of the cylinder, the gap extension
Extremely connected with the end edge of the cylinder.
6. shell structure according to claim 2, it is characterised in that be arranged on the breach on first flanging in circumference
On extend in first plate portion；And/or
The breach being arranged on second flanging extends in second plate portion in the circumferential.
7. shell structure according to claim 6, it is characterised in that, formed with described in the cylinder radially
The region of breach, first plate portion and the second plate portion at least subregion are overlapped.
8. shell structure according to claim 3, it is characterised in that at least one end of the cylinder is provided with choke,
The buckling groove is formed on the choke.
9. shell structure according to claim 3, it is characterised in that the opening end of the end cap is to radially inner side bent
Into there is holding section, the holding section is caught in the buckling groove, and the end cap is connected with the cylinder.
10. the shell structure according to one of claim 2 to 9, it is characterised in that first flanging is formed described the
The radially inner side of one plate portion, second flanging form the radial outside in second plate portion, and second plate portion is being set
The side of second flanging forms the inner fovea part being recessed radially inward, and first flanging and second flanging are respectively positioned on
In the inner fovea part.
11. the shell structure according to one of claim 2 to 9, it is characterised in that the cylinder includes splicing in the circumferential
At least two blocks of sheet materials together, in the circumferential, the edge of the two edges of each sheet material respectively with other adjacent sheet materials lead to
Cross the fold occlusal structure connection.
12. a kind of water heater, it is characterised in that including tank shell, the tank shell is such as one of claim 2 to 11 institute
The shell structure stated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721013597.9U CN207086764U (en) | 2017-08-14 | 2017-08-14 | Hem interlock structure, shell structure and water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721013597.9U CN207086764U (en) | 2017-08-14 | 2017-08-14 | Hem interlock structure, shell structure and water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207086764U true CN207086764U (en) | 2018-03-13 |
Family
ID=61541142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721013597.9U Expired - Fee Related CN207086764U (en) | 2017-08-14 | 2017-08-14 | Hem interlock structure, shell structure and water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207086764U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107486505A (en) * | 2017-08-14 | 2017-12-19 | 珠海格力电器股份有限公司 | Folded edge engagement structure, shell structure, machining method of shell structure and water heater |
-
2017
- 2017-08-14 CN CN201721013597.9U patent/CN207086764U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107486505A (en) * | 2017-08-14 | 2017-12-19 | 珠海格力电器股份有限公司 | Folded edge engagement structure, shell structure, machining method of shell structure and water heater |
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