CN211408656U - Folding kettle that fence formula supported - Google Patents

Abstract

The utility model discloses a fence type supported folding kettle, which comprises a kettle bottom, a kettle body and an upper connecting sleeve, wherein the kettle body comprises a telescopic shell and an inner bag, the telescopic shell is sleeved outside the inner bag, the lower end of the telescopic shell is connected to the kettle bottom, and the upper end of the telescopic shell is matched and connected with an opening at the upper end of the inner bag; the telescopic shell comprises at least one group of lower fences and one group of upper fences which are mutually embedded, the lower fences and the upper fences are accommodated in the bottom of the kettle when the kettle is folded, and the lower fences and the upper fences are mutually embedded up and down when the kettle is used. The telescopic shell adopts a mode of sliding embedding the lower fence and the upper fence, and after the telescopic shell is stretched to the maximum position, the telescopic shell rotates for a certain angle to enable the fence rods of the lower fence and the upper fence to be vertically aligned and embedded, so that clamping support can be realized, the lower fence and the upper fence are prevented from automatically contracting after being stretched, the upper fence and the lower fence and the inner bag can contract into the kettle bottom when the kettle is stored, and the volume after storage is reduced; the upper fence and the lower fence are overlapped and embedded in the kettle bottom, so that the kettle is not easy to extend automatically, and the stability is improved.

Description

Folding kettle that fence formula supported

Technical Field

The utility model relates to the field of electric appliances, in particular to a folding kettle supported by a fence.

Background

The kettle bottom component of the existing folding kettle is mainly folded upwards and stored in the middle of a kettle body, and the kettle is of a structure with a large middle part and small two ends and has poor stability; when the kettle bottom component is upwards stored, the lower kettle body and the outer wall of the base component are in friction extrusion, so that the kettle bottom component is easy to damage, the volume is still large after being folded, and the folding rate is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems of larger volume and poor stability of the folding kettle in the prior art after being folded, and providing a folding kettle supported by a fence type.

The utility model provides a pair of folding kettle of fence formula support, include: the kettle comprises a kettle bottom, a kettle body and an upper connecting sleeve, wherein the kettle body comprises a telescopic shell and an inner bag, the telescopic shell is sleeved outside the inner bag, the lower end of the telescopic shell is connected to the kettle bottom, and the upper end of the telescopic shell is connected to the upper connecting sleeve in a matched manner with an opening in the upper end of the inner bag; the telescopic shell comprises at least one group of lower fences and one group of upper fences which are mutually embedded, when the folding kettle is in a folded state, the lower fences and the upper fences are overlapped and embedded in the thickness direction or the circumferential direction and are contained in the kettle bottom, and when the folding kettle is in an unfolded use state, the lower fences and the upper fences are mutually embedded in the vertical direction along the extension direction of the folding kettle. When the folding kettle is stretched and unfolded, the upper connecting sleeve is pulled to drive the inner bag and the telescopic shell to be stretched and unfolded simultaneously, the lower fence and the upper fence which are embedded with each other can be stretched in a sliding mode relatively, and the top of the lower fence and the top of the upper fence are supported by the end parts of the lower fence and the upper fence; can inlay in the fence clearance mutually during folding, contract in the kettle bottom, have convenient operation, stability is high, advantage that the rate of folding is high.

Preferably, the kettle bottom is of a hollow cylindrical structure with a closed bottom surface, an annular sleeve is arranged in the kettle bottom along the axial direction from the bottom surface of the kettle bottom, and the annular sleeve and the kettle bottom are the same central axis; an annular gap is formed between the annular sleeve and the kettle bottom so that the lower fence can slide up and down. An annular gap formed between the annular sleeve and the kettle bottom is a guide rail for the lower fence to slide up and down; when the folding kettle is unfolded, the lower fence can slide upwards to the upper end surface of the kettle bottom from the bottom of the kettle bottom along the annular gap so as to increase the overall height of the kettle; when the folding kettle is folded, the lower fence and the upper fence can be embedded and then slide down to the bottom surface of the kettle bottom, so that the folded volume is reduced; meanwhile, the lower fence can be clamped in the gap, so that the lower fence is prevented from being inclined, and the stability of the kettle is improved.

Preferably, an inverted L-shaped sliding groove is formed in the outer side wall of the annular sleeve, and a concave positioning groove is formed in the end portion of a short side groove of the inverted L-shaped sliding groove. The spout is used for supplying down the fence and slides in the annular gap and lead, and the constant head tank can be fixed a position after the fence slides the tip down, prevents automatic gliding, increases the stability after the kettle expandes.

Preferably, the annular sleeve comprises an upper half area and a lower half area which are separated by a partition plate, the lower half area is used for placing a heating device, and the upper half area is connected with the bottom of the inner bag through a clamping groove in a clamping mode. The heating device can adopt electromagnetic heating, resistance heating and the like; when the clamping groove is used for installing the inner bag, after the flanging of the inner bag is pressed through the pressing ring and the inner bag rotates for a certain angle, the clamping buckle of the pressing ring is clamped in the clamping groove to hook the clamping buckle, and the inner bag is convenient to detach, replace or clean.

Preferably, the lower fence and the upper fence are respectively composed of a plurality of groups of first fence rods and second fence rods which are arranged in an equidistant array along the circumferential direction, and one ends of the first fence rods and the second fence rods are respectively fixed on the fixing ring and the upper connecting sleeve; the first fence rod and the second fence rod are sheet rods with cambered surfaces, and are fixed around the fixing ring to form a cylindrical fence, and the sheet rod structure facilitates the relative rotation of the lower fence and the upper fence; the first grid rail and the second grid rail can be supported in a butting mode at the end part of the kettle after being unfolded.

Preferably, first bars pole is used for gliding both sides face to be equipped with the slip recess, horizontal recess is seted up along its thickness direction on the surface of the upper end of first bars pole, the part between the top of horizontal recess and first bars pole forms spacing boss, spacing boss one end and vertical connecting block fixed connection, vertical connecting block with horizontal groove connection forms a through-hole, the length of spacing boss surpasss the groove depth half of slip recess. The sliding groove can limit the sliding track of the second grid rod matched with the first grid rod, so that the second grid rod and the first grid rod are not easy to separate when sliding; the transverse groove is a rotating track for the second fence rod to rotate to the end part of the first fence rod for butting; the limiting boss is used for preventing the second fence rod from loosening in the radial direction when the second fence rod rotates to the end part of the first fence rod to be opposite to the top; the through holes can prevent the second fence rod from rotating to the end part of the first fence rod to form interference; the length of spacing boss surpasss the groove depth's of sliding groove half can block the second bars pole after the second bars pole slides and stretches to sliding groove top, prevents that the second bars pole from taking off from the axial pine.

Preferably, sliding bosses matched with the sliding grooves are arranged on two side faces of the second grid rail; a transverse limiting groove is formed on the surface below the transverse limiting groove along the thickness direction of the transverse limiting groove; a limiting strip is arranged below the transverse limiting groove, two ends of the limiting strip extend outwards and exceed the sliding boss, and the depth of the extending part of the limiting strip is consistent with that of the sliding groove; the limiting strip is provided with a notch; when the telescopic shell is stretched for use, the transverse groove is embedded with the limiting strip, and the transverse limiting groove is embedded with the limiting boss. The sliding boss can be installed in the sliding groove, so that the second fence rod can slide up and down along the sliding groove on the first fence rod and is not easy to loosen and separate; the transverse limiting groove can be matched with a limiting boss at the top end of the first fence rod, and radial limiting is performed after the transverse limiting groove rotates to the top end, so that loosening is prevented; the limiting strips can enter the transverse grooves of the first fence rods in a rotating mode, and are clamped in an up-and-down mode; meanwhile, the groove depth of the limiting strip extending outwards beyond the sliding boss is consistent with that of the sliding groove, and the limiting boss can be clamped at the extending part of the limiting strip after the second fence rod is stretched to the top of the first fence rod along the sliding groove, so that the second fence rod and the first fence rod cannot be separated; the notch can cooperate with the interference convex block, so that the second fence rod rotates to the end part of the first fence rod to form interference fit when being butted, and the kettle is prevented from being contracted and folded due to easy reverse rotation after being butted.

Preferably, a protruding block matched with the inverted L-shaped sliding groove is arranged on the inner side of the fixing ring of the lower fence, and the protruding block can slide relative to the L-shaped sliding groove and the positioning groove and is used for guiding and limiting in the moving process of the lower fence. The convex block can be installed in the sliding groove to slide up and down, and the convex block slides to the sliding groove and then rotates to enter the positioning groove for positioning, so that the lower fence can slide to the upper end of the annular sleeve, and the height of the kettle after being unfolded is increased.

Preferably, an L-shaped clamping groove is formed in the end face, facing the upper half area, of the partition board along the circumferential direction; the bottom of the inner bag is connected with a positioning sleeve, a positioning strip is arranged on the inner side wall of the positioning sleeve, and the positioning strip is matched with the L-shaped clamping groove. After the clamping groove is tightly pressed by the positioning sleeve at the bottom of the inner bag, the positioning strip can hook the clamping groove to prevent loosening, and the inner bag is clamped on the end surface of the upper half area.

Preferably, a sealing gasket is arranged in the L-shaped clamping groove and used for increasing the sealing property when the positioning strip is matched with the L-shaped clamping groove. The sealing gasket is used for enhancing sealing after the bottom surface of the inner bag is connected, so that water leakage is prevented.

Preferably, be equipped with the interference lug along the groove width direction on the cell wall of horizontal recess, the interference lug with the notch cooperation, after first bars railing and second bars railing gomphosis, the interference lug with the notch forms interference fit, makes it be difficult for deviating from. Interference lug and notch interference fit, first bars railing and the rotatory back of opposite vertex gomphosis of second bars railing, receive external force and be difficult for deviating from, increase the security.

The beneficial effects of the utility model include: the telescopic shell of the folding kettle adopts a mode of sliding embedding of the lower fence and the upper fence, and after the telescopic shell is stretched to the maximum position, the lower fence and the fence rod of the upper fence are vertically aligned and embedded through rotating a certain angle, so that clamping support can be realized, the lower fence and the upper fence are prevented from automatically contracting after being stretched, the upper fence and the lower fence and the inner bag can contract into the kettle bottom when the kettle is stored, and the volume after storage is reduced; the upper fence and the lower fence are overlapped and embedded in the kettle bottom, are not easy to extend automatically, effectively improve the stability, the safety and the folding rate, and have two-thirds foldable volume.

Drawings

Fig. 1 is a schematic view of an explosion structure of a folding water bottle in an embodiment of the present invention.

Fig. 2 is a schematic view of the overall structure of the kettle of fig. 1 in an unfolded state without the inner bag.

Fig. 3 is a schematic view of the collapsed configuration of the collapsible urn of fig. 2.

Fig. 4 is a schematic structural view of the folding water bottle of the present embodiment in a storage state.

Fig. 5 is a schematic view of the structure of the lower fence in the present invention.

Fig. 6 is a schematic view of an upper fence structure and a connecting sleeve in the utility model.

Fig. 7 is a schematic view of the structure of the annular sleeve of fig. 1.

Fig. 8 is a cross-sectional schematic view of the annular sleeve of fig. 7.

Fig. 9 is a structural view showing a developed state of the "L" shaped chute of fig. 7.

Fig. 10 is a partial structure diagram of the first fence.

Fig. 11 is a partial structure diagram of the second barrier.

Fig. 12 is a partial schematic view of the first and second picket bars when butted together.

Fig. 13 is a schematic view of the structure of the inner bladder of fig. 1.

Fig. 14 is a schematic view of a retaining ring structure.

Fig. 15 is a schematic view of the structure of the positioning sleeve.

Fig. 16 is a partial structure diagram of the second fence.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following embodiments. It should be emphasized that the following description is merely exemplary in nature and is not intended to limit the scope of the invention or its application.

Non-limiting and non-exclusive embodiments will be described with reference to the following figures, wherein like reference numerals refer to like parts, unless otherwise specified.

As shown in fig. 1 to 4, the embodiment provides a folding kettle supported in a fence type, which comprises a kettle bottom 5-1, a kettle body and an upper connecting sleeve 5-4, wherein the kettle body comprises a telescopic shell and an inner bag 5-9 arranged at the inner side of the telescopic shell, and the telescopic shell and the inner bag are arranged between the upper connecting sleeve 5-4 and the kettle bottom 5-1; the telescopic shell is formed by mutually embedding at least one group of lower fences 5-2 and one group of upper fences 5-3, when the folding kettle is in a folded state, the lower fences 5-2 and the upper fences 5-3 are overlapped and embedded in the thickness direction or the circumferential direction and are contained in the kettle bottom 5-1, and when the folding kettle is in an unfolded use state, the lower fences 5-2 and the upper fences 5-3 are mutually embedded up and down along the extension direction of the folding kettle. In addition, the folding kettle can also comprise a kettle cover 5-6 and a handle 5-8, wherein the kettle cover 5-6 and the handle 5-8 are arranged on the upper connecting sleeve 5-4, the handle 5-8 is hinged on the connecting sleeve 5-4 and can be folded in the accommodating groove 5-7 on the kettle cover 5-6 after being rotated; the telescopic shell is sleeved outside the inner bag 5-9, the lower end of the telescopic shell is connected to the kettle bottom 5-1, and the upper end of the telescopic shell is connected with the opening at the upper end of the inner bag 5-9 in a matching manner; the inner bag 5-9 is made of soft waterproof heat-resistant food-grade environment-friendly materials.

As shown in fig. 5 to 7, the lower fence 5-2 comprises a lower fence fixing ring 5-203 and a plurality of groups of first fence rods 5-201 arranged in an equidistant array along the circumferential direction, and the bottom ends of the first fence rods 5-201 are fixed on the lower fence fixing ring 5-203; the upper fence 5-3 comprises a plurality of groups of second fence rods 5-301 which are arranged in an equidistant array along the circumferential direction, and the top ends of the groups of second fence rods 5-301 are fixed at the bottom of the upper connecting sleeve 5-4; the circumferential spacing between the sets of first railings 5-201 corresponds to the circumferential dimension of the second railings 5-301 to ensure that the upper fence 5-3 and the lower fence 5-2 can slide relative to each other. The inner side of the lower fence fixing ring 5-203 is provided with a convex block 5-202, the kettle bottom is a hollow cylindrical structure with a closed bottom surface, an annular sleeve 5-101 is arranged in the kettle bottom 5-1 along the axial direction from the bottom surface of the kettle bottom 5-1, the annular sleeve 5-101 and the kettle bottom 5-1 are the same central axis, an annular gap is formed between the annular sleeve 5-101 and the kettle bottom 5-1 for the lower fence 5-2 to slide up and down, and the kettle can be accommodated in the kettle bottom after being folded; the outer side wall of the annular sleeve 5-101 is provided with an L-shaped sliding groove 5-101a matched with the lug 5-202 along the direction from bottom to top, and the lug 5-202 can slide in the long side and the short side of the L-shaped sliding groove 5-101a and is used for guiding and limiting in the movement process of the lower fence 5-2. Specifically, the first fence rod 5-201 is a sheet rod with an arc surface, so that the lower fence 5-2 is combined to form a cylindrical structure, and the second fence rod 5-301 is a sheet rod with an arc surface, so that the upper fence 5-3 is combined to form a cylindrical structure. Furthermore, the edge of the top of the upper connecting sleeve 5-4 is also provided with a spout 5-5, and the edge of the upper connecting sleeve 5-4 on the opposite side of the spout 5-5 is provided with a hinge joint 5-404. The lower fence and the upper fence can be staggered by rotating a certain angle, so that the first fence rod and the second fence rod are embedded into a gap between the fence rods and are embedded in a sliding manner, and the fence rods can be aligned and supported after rotating; the lower fence and the upper fence are integrally cylindrical, so that the lower fence and the upper fence can be conveniently butted after being rotated mutually; the convex block can be in sliding fit with the L-shaped sliding groove, so that the lower fence is limited to slide up and down along the sliding groove, and can be rotationally clamped into the transverse end of the sliding groove for fixing after sliding to the top, the lower fence is prevented from falling, and the stability is high; go up the fence and can crisscross inlay together with lower fence, realize folding, can accomodate simultaneously after both are folding and get into the base in, realize that the three-section is folding to be accomodate, the folding rate is high.

As shown in fig. 6 to 15, the inner side of the bottom edge of the upper connecting sleeve 5-4 is provided with an inner bag fixing step surface 5-401 around the circumferential direction, the top of the inner bag 5-9 is provided with an outward flange 5-903 and a positioning ring 5-901, and the outward flange 5-903 and the positioning ring 5-901 are sequentially clamped on the inner bag fixing step surface 5-401. Furthermore, a spout 5-5 is arranged on the edge of the top of the upper connecting sleeve 5-4, and a hinge joint 5-404 is arranged on the edge of the upper connecting sleeve 5-4 on the opposite side of the spout 5-5; an inner bag positioning screw hole 5-403 is arranged on the inner bag fixing step surface 5-401, and an inner bag clamping limiting block 5-402 is arranged above the inner bag fixing step surface 5-401. The annular sleeve 5-101 comprises an upper half area 5-101g and a lower half area 5-101e which are separated by a partition plate 5-101b, the lower half area 5-101e is used for placing a heating device, and the upper half area 5-101g is connected with the bottom of the inner bag 5-9 through a clamping groove in a buckling mode. The end faces of the partition boards 5-101b facing the upper half areas 5-101g are provided with L-shaped clamping grooves 5-101c along the circumferential direction; the bottom of the inner bag 5-9 is connected with a positioning sleeve 5-902, a positioning strip 5-902a is arranged on the inner side wall of the positioning sleeve 5-902, and the positioning strip 5-902a is matched with an L-shaped clamping groove 5-101 c. The L-shaped clamping grooves 5-101c are internally provided with sealing gaskets 5-101d for increasing the sealing property when the positioning strips 5-902a are matched with the L-shaped clamping grooves 5-101 c. The hinge interface is a connecting port of the kettle cover and the handle and is used for connecting the kettle cover and the handle; the inner bag fixing step surface can clamp the outward turned edge at the top of the inner bag, and then the outward turned edge is tightly pressed by using a positioning ring to realize clamping and fixing; the inner bag clamping limiting block can enable the positioning ring to be tightly pressed on the flanging, and then the positioning ring is rotated to enable the positioning opening and the inner bag clamping limiting block to be tightly clamped, so that the upper end of the inner bag is fixed. The positioning sleeve 5-902 and the inner bag are made of food-grade plastic materials, the positioning sleeve 5-902 is hard, and the inner bag 5-9 is soft. Furthermore, the edge of the positioning ring 5-901 is provided with a positioning opening 5-901a, the edge of the inner side of the positioning ring 5-901 is also provided with a positioning screw hole 5-901b, the positioning opening 5-901a corresponds to the inner sac clamping limiting block 5-402, and the positioning screw hole 5-901b corresponds to the inner sac positioning screw hole 5-403. The positioning screw holes are matched with the positioning screw holes of the inner bag, two positioning screws are aligned after the positioning rings are rotated for a certain angle, and the positioning rings can be fixed through screws, so that the positioning rings cannot be automatically loosened.

Further, as shown in fig. 9, the end of the short side of the "L" shaped sliding slot 5-101a is provided with a recessed positioning slot 5-101f for accommodating the projection 5-202, so as to prevent the projection 5-202 from sliding out of the short side of the "L" shaped sliding slot 5-101 a. The L-shaped sliding groove can enable the bump on the lower fence to be clamped into the sliding groove to limit the up-and-down sliding, and meanwhile, the bump can rotate a certain angle to enter the transverse end of the inverted L-shaped sliding groove after moving to the top, so that the bump is prevented from sliding up and down; the locating slot can make the convex block sink slightly after moving to the right position, and prevent the convex block from automatically sliding out from the transverse end of the sliding groove easily, so that danger is avoided.

As shown in fig. 10 to 12 and fig. 16, two sliding grooves 5-201a are provided on two sides of the first railing rod 5-201 for sliding, and correspondingly, two sliding bosses 5-301a are provided on two sides of the second railing rod 5-301 for matching with the sliding grooves; the surface of the upper end of the first fence rod (5-201) is provided with a transverse groove 5-201e along the thickness direction, the top end of the first fence rod is provided with a limiting boss 5-201b, and the length of the limiting boss 5-201b exceeds half of the groove depth of the sliding groove 5-201 a; one end of the limiting boss 5-201b is fixedly connected with the vertical connecting block 5-201c, and the vertical connecting block 5-201c is connected with the transverse groove 5-201e to form a through hole 5-201 f; correspondingly, one end of the second fence rod 5-301 is provided with a transverse limiting groove 5-301c along the thickness direction, the bottom end of the second fence rod is provided with a limiting strip 5-301b, two ends of the limiting strip 5-301b extend outwards and exceed the sliding boss 5-301a, and the extending part of the limiting strip is consistent with the depth of the sliding groove 5-201 a; the transverse limiting grooves 5-301c are downwards extended by the inner walls of the second fence poles 5-301 to seal half of the notches 5-301 e; when the telescopic shell is stretched for use, the transverse grooves 5-201e are embedded with the limiting strips 5-301b, the transverse limiting grooves 5-301c are embedded with the limiting bosses 5-201b, and are clamped and limited by the notches 5-301 e. The cooperation of slip recess and slip boss makes the slip boss can block and slide from top to bottom in the slip recess. Furthermore, interference convex blocks 5-201d are arranged on the groove walls of the transverse grooves 5-201e along the groove width direction, notches 5-301d matched with the interference convex blocks 5-201d are arranged on the limiting strips 5-301b along the width direction, and after the first grid rail 5-201 is embedded with the second grid rail 5-301, the interference convex blocks 5-201d and the notches 5-301d form interference fit, so that the grid rail is not easy to fall off. The two ends of the limiting strip can also be matched with the sliding groove and clamped into the sliding groove to slide up and down, the two ends of the limiting strip can extend to the bottom of the sliding groove, and the sliding boss can only extend to a half of the sliding groove; the transverse groove can be matched with the limiting strip, after the upper fence slides to the top of the lower fence, the upper fence rotates for a certain angle, and the limiting strip enters the transverse groove to realize butt joint; the limiting boss is matched with the transverse limiting groove, and the limiting boss is sealed and clamped after being inserted into the transverse limiting groove, so that the front and the back cannot shake and separate; after the limiting strip rotates to enter the transverse groove, a certain limiting effect is achieved.

Those skilled in the art will recognize that numerous variations are possible in light of the above description, and therefore the examples and drawings are merely intended to describe one or more specific embodiments.

While there has been described and illustrated what are considered to be example embodiments of the present invention, it will be understood by those skilled in the art that various changes and substitutions can be made therein without departing from the spirit of the invention. In addition, many modifications may be made to adapt a particular situation to the teachings of the present invention without departing from the central concept described herein. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but may include all embodiments and equivalents falling within the scope of the present invention.

Claims (11)

1. A folding water jug with a barrier support, comprising: the kettle comprises a kettle bottom (5-1), a kettle body and an upper connecting sleeve (5-4), wherein the kettle body comprises a telescopic outer shell and an inner bag (5-9), the telescopic outer shell is sleeved outside the inner bag (5-9), the lower end of the telescopic outer shell is connected to the kettle bottom, and the upper end of the telescopic outer shell is connected to the upper connecting sleeve in a matched manner with an opening in the upper end of the inner bag (5-9); the telescopic shell comprises at least one group of lower fences (5-2) and one group of upper fences (5-3) which are mutually embedded, when the folding kettle is in a folded state, the lower fences (5-2) and the upper fences (5-3) are overlapped and embedded in the thickness direction or the circumferential direction and are contained in the kettle bottom (5-1), and when the folding kettle is in an unfolded use state, the lower fences (5-2) and the upper fences (5-3) are mutually embedded and fixed up and down along the extending direction of the folding kettle.

2. A folding jug according to claim 1, wherein: the kettle bottom (5-1) is of a hollow cylindrical structure with a closed bottom surface, an annular sleeve (5-101) is arranged inside the kettle bottom (5-1), and the annular sleeve (5-101) and the kettle bottom (5-1) are the same central axis; an annular gap is formed between the annular sleeve (5-101) and the kettle bottom (5-1) to allow the lower fence (5-2) to slide up and down.

3. A folding jug according to claim 2, wherein: the outer side wall of the annular sleeve (5-101) is provided with an inverted L-shaped sliding groove (5-101a), and the end part of the short side groove of the inverted L-shaped sliding groove (5-101a) is provided with a downward concave positioning groove (5-101 f).

4. A folding jug according to claim 3, wherein: the annular sleeve (5-101) comprises an upper half area (5-101g) and a lower half area (5-101e) which are separated by a partition plate (5-101b), the lower half area (5-101e) is used for placing a heating device, and the upper half area (5-101g) is connected with the bottom of the inner bag (5-9) through a clamping groove in a buckling mode.

5. A folding jug according to claim 3, wherein: the lower fence (5-2) and the upper fence (5-3) are respectively composed of a plurality of groups of first fence rods (5-201) and second fence rods (5-301) which are arranged in an equidistant array along the circumferential direction, and one ends of the first fence rods (5-201) and the second fence rods (5-301) are respectively fixed on the fixing rings (5-203) and the upper connecting sleeves (5-4); the first grid rail (5-201) and the second grid rail (5-301) are sheet-shaped rods with cambered surfaces.

6. A folding jug according to claim 5, in which: the two side faces, used for sliding, of the first fence rod (5-201) are provided with sliding grooves (5-201a), the surface of the upper end of the first fence rod (5-201) is provided with transverse grooves (5-201e) along the thickness direction of the first fence rod, the top end of the first fence rod is provided with limiting bosses (5-201b), one ends of the limiting bosses (5-201b) are fixedly connected with vertical connecting blocks (5-201c), the vertical connecting blocks (5-201c) are connected with the transverse grooves (5-201e) to form through holes (5-201f), and the length of the limiting bosses (5-201b) exceeds half of the depth of the sliding grooves (5-201 a).

7. A folding jug according to claim 6, in which: two side surfaces of the second fence rod (5-301) are provided with sliding bosses (5-301a) matched with the sliding grooves (5-201 a); a transverse limiting groove (5-301c) is formed on the surface below the groove along the thickness direction of the groove; a limiting strip (5-301b) is arranged below the transverse limiting groove (5-301c), two ends of the limiting strip (5-301b) extend outwards and exceed the sliding boss (5-301a), and the extending part of the limiting strip is consistent with the depth of the sliding groove (5-201 a); notches (5-301d) are arranged on the limiting strips (5-301 b); when the telescopic shell is stretched for use, the transverse groove (5-201e) is embedded with the limiting strip (5-301b), and the transverse limiting groove (5-301c) is embedded with the limiting boss (5-201 b).

8. A folding jug according to claim 5, in which: the inner side of the fixing ring (5-203) of the lower fence is provided with a convex block (5-202) matched with the inverted L-shaped sliding groove (5-101a), and the convex block (5-202) can slide relative to the L-shaped sliding groove (5-101a) and the positioning groove (5-101f) and is used for guiding and limiting in the moving process of the lower fence (5-2).

9. A folding jug according to claim 4, in which: the end face, facing the upper half area (5-101g), of the partition plate (5-101b) is provided with an L-shaped clamping groove (5-101c) along the circumferential direction; the bottom of the inner bag (5-9) is connected with a positioning sleeve (5-902), a positioning strip (5-902a) is arranged on the inner side wall of the positioning sleeve (5-902), and the positioning strip (5-902a) is matched with the L-shaped clamping groove (5-101 c).

10. A folding jug according to claim 9, wherein: and sealing gaskets (5-101d) are arranged in the L-shaped clamping grooves (5-101c) and are used for increasing the sealing property when the positioning strips (5-902a) are matched with the L-shaped clamping grooves (5-101 c).

11. A folding jug according to claim 7, wherein: interference convex blocks (5-201d) are arranged on the groove walls of the transverse grooves (5-201e) in the groove width direction, the interference convex blocks (5-201d) are matched with the notches (5-301d), and after the first grid rail (5-201) is embedded with the second grid rail (5-301), the interference convex blocks (5-201d) and the notches (5-301d) form interference fit, so that the interference convex blocks are not easy to separate.

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