CN219729044U - Sealing structure for preventing polyurethane foaming leakage and heat preservation water tank - Google Patents

Abstract

The utility model provides a sealing structure for preventing polyurethane foaming leakage and a heat-insulating water tank, which comprise a special-shaped shell arranged between a water tank shell and a sealing head of a water tank liner, wherein the special-shaped shell is clamped at the bottom of the water tank shell, the front surface of the special-shaped shell is attached to a bottom plate of the water tank shell, the back surface of the special-shaped shell is attached to the bottom sealing head of the water tank liner, and the shape of the special-shaped shell is matched with the cross section of the water tank shell, so that the peripheral edge of the special-shaped shell is abutted against the inner side wall of the water tank shell, and interference fit is formed between the peripheral edge of the special-shaped shell and the inner wall of the water tank shell, thereby achieving the sealing structure for preventing polyurethane foaming material leakage.

Description

Sealing structure for preventing polyurethane foaming leakage and heat preservation water tank

Technical Field

The utility model relates to the field of heat preservation water tanks, in particular to a sealing structure for preventing polyurethane foaming leakage.

Background

The polyurethane hard foam is a novel synthetic material with heat preservation and waterproof functions, the heat conductivity coefficient of the polyurethane hard foam is lower, the heat conductivity coefficient of the polyurethane hard foam is only equal to half of that of an extruded sheet, and the heat conductivity coefficient of all heat preservation materials is the lowest. The rigid polyurethane foam plastic is mainly applied to building external wall heat preservation, roof waterproof heat preservation integration, refrigeration house heat preservation and heat insulation, pipeline heat preservation materials, building boards, refrigeration cars, refrigeration house heat insulation materials and the like. And the gaps around the refrigerator, the air conditioner and the water tank are filled, sealed and insulated, and meanwhile, the polyurethane hard foam body also has the buffering and shockproof effects.

The water tank comprises an inner container and a shell, wherein a cavity between the inner container and the shell is required to be filled with polyurethane hard foam bodies for heat preservation and buffering, and the polyurethane hard foam bodies filled between the inner container and the shell are obtained after hardening/curing of polyurethane foaming materials; for a square water tank shell, the water tank shell is usually formed by splicing and assembling a plurality of plates in different directions, two adjacent splice plates are usually fixed in a buckling manner, and the like, and a certain gap is formed at the joint of the two adjacent splice plates in the buckling manner, so that the water tank shell is provided with the gap; in addition, a bottom plate screw/tube head/electric heating hole site and the like are usually arranged on the bottom plate of the water tank shell corresponding to the liner sealing head, and the existence of the screw holes and the pipeline holes also enables the water tank shell not to be closed; therefore, when the uncured polyurethane foam material is filled into the cavity, the uncured polyurethane foam material leaks to the outside of the tank case along the assembly slits, screw holes, pipe holes, and the like of the tank case.

In the prior art, in order to solve the problem of leakage of polyurethane foaming materials, after the water tank shell is assembled, firstly, masking paper is stuck to the gap of the inner wall of the water tank shell, sponge strips and the like are fixed at the positions of screw holes, pipeline holes and the like; then, the liner can be arranged in the shell; finally, the flowing polyurethane foaming material is filled between the outer wall of the liner and the inner wall of the shell, so that after the foaming material is fully filled in the cavity between the outer wall of the liner and the inner wall of the shell, the foaming material is solidified in the cavity to form a polyurethane hard foam body, and the masking paper and the sponge strip can prevent the foaming material from leaking when the foaming agent is filled, so that the filled foaming material is prevented from extruding from a gap to leak to the outer side of the water tank shell.

However, the existing mode of pasting the shell gap and the pipeline hole by using the masking paper and the sponge strip needs to be manually entered into the assembled water tank shell, the masking paper is pasted at the inner wall gap of the water tank shell, the sponge strip is fixed at the screw hole, the pipeline hole and the like, and the positions needing to be subjected to leakage-proof treatment are more, so that the time and the labor are wasted in the leakage-proof pasting process, and the overall assembly efficiency of the water tank is affected.

Disclosure of Invention

Based on this, it is necessary to provide a closed structure that prevents leakage of polyurethane foam.

In order to solve the technical problems, the utility model provides a sealing structure for preventing polyurethane foaming leakage, which comprises a special-shaped shell arranged between a water tank shell and a sealing head of a water tank liner, wherein the special-shaped shell is clamped at the bottom of the water tank shell, the front surface of the special-shaped shell is attached to a bottom plate of the water tank shell, the back surface of the special-shaped shell is attached to the bottom sealing head of the water tank liner, and the shape of the special-shaped shell is matched with the shape of the cross section of the water tank shell, so that the periphery of the special-shaped shell is abutted against the inner side wall of the water tank shell, and interference fit is formed between the periphery of the special-shaped shell and the inner wall of the water tank shell, thereby achieving the sealing structure for preventing polyurethane foaming material leakage.

Preferably, the special-shaped shell is made of rigid foam materials.

Preferably, the thickness of the special-shaped shell at the contact part of the water tank shell is more than 10cm.

Preferably, the thickness of the special-shaped shell at the gap of the water tank shell is in the range of (10-20) cm.

Preferably, the special-shaped shell is provided with a plurality of hollowed-out hole sites, wherein the hollowed-out hole sites comprise a bottom plate screw hole site, a tube head hole site and an electric heating hole site.

Preferably, the front of dysmorphism casing has seted up first spacing groove, the shape in first spacing groove and the bottom head phase-match of water tank inner bag, the middle part of dysmorphism casing is provided with the brace table, first spacing groove is located on the brace table, the second spacing groove has been seted up to the back of dysmorphism casing, the second spacing groove with the brace table corresponds.

Preferably, the special-shaped shell is provided with avoidance holes at two sides of the supporting table, the thickness of the special-shaped shell at the avoidance holes is a first thickness, the thickness of the special-shaped shell at the supporting table is a second thickness, and the first thickness and the second thickness are both greater than 10cm.

Preferably, the screw hole site, the pipe head hole site and the electric heating hole site of the bottom plate are all positioned at the second limit groove.

Still provide a heat preservation water tank, include dysmorphism casing and water tank shell and water tank inner bag, the water tank inner bag is located inside the water tank shell, the water tank inner bag with be formed with the cavity between the water tank shell, the cavity intussuseption is filled with insulation material, insulation material include polyurethane hard bubble body with dysmorphism casing, dysmorphism casing is located the head department of water tank inner bag.

Preferably, the water tank shell comprises a bottom plate, a front panel, a rear panel and a top plate, the cross section of the rear panel is U-shaped, the front panel is connected with the rear panel to form a cylindrical structure, the bottom plate is connected with the top plate at two ends of the cylindrical structure respectively, so that the water tank shell is formed, the bottom plate is connected with the splicing part of the front panel and the rear panel in a buckling manner, so that a gap is formed at the splicing part of the bottom plate, the front panel and the rear panel, and the water tank liner comprises a cylinder and sealing heads respectively fixed at two ends of the cylinder.

The utility model has the beneficial effects that: after improvement, set up special-shaped shell in the shell bottom, place the inner bag again, then, carry out the polyurethane foaming material of flow form and fill between inner bag outer wall and the shell inner wall, can prevent that uncured flow form polyurethane foaming material from revealing to the outside of water tank shell, through using special-shaped shell to form enclosed construction, reduced the process such as subsides beautiful line paper, whole process time significantly reduces.

Drawings

The foregoing and other objects, features and advantages of the utility model will be apparent from the following more particular description of preferred embodiments of the utility model, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intentionally drawn to scale on actual size or the like, with emphasis on illustrating the principles of the utility model.

Fig. 1 is a schematic perspective view of a front view of a shaped housing according to a preferred embodiment of the present utility model;

fig. 2 is a schematic perspective view of the back view of the shaped shell according to the preferred embodiment of the present utility model;

FIG. 3 is a schematic view showing the overall structure of a heat preservation water tank according to a preferred embodiment of the present utility model;

FIG. 4 is a schematic cross-sectional view of the insulated water tank of FIG. 3 taken longitudinally along line A-A';

FIG. 5 is an exploded view of a holding tank according to a preferred embodiment of the present utility model;

FIG. 6 is a schematic cross-sectional view of a radiator tank of a preferred embodiment of the utility model taken transversely across a profiled housing;

in the figure: a special-shaped shell 1; a hollowed-out hole site 2; a bottom plate screw hole site 21; a tube head hole site 22; an electric heating hole site 23; a first limit groove 3; a support table 4; a second limit groove 5; a avoidance space 6; a first thickness L1; a second thickness L2; a tank case 7; a tank liner 8; a closure 81; a cavity 9; a bottom plate 70; a front panel 71; a rear panel 72; a top plate 73.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to and integrated with the other element or intervening elements may also be present. The terms "mounted," "one end," "the other end," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-6, the utility model provides a sealing structure for preventing polyurethane foaming leakage, which comprises a special-shaped shell 1 arranged between a water tank shell 7 and a sealing head 81 of a water tank liner 8, wherein the special-shaped shell 1 is clamped at the bottom position of the water tank shell 7 by the inner side wall of the water tank shell 7, the front surface of the special-shaped shell 1 is attached to a bottom plate 70 of the water tank shell 7, the back surface of the special-shaped shell 1 is attached to the bottom sealing head of the water tank liner 8, the shape of the special-shaped shell 1 is matched with the cross section shape of the water tank shell 7, and when the cross section shape of the water tank shell is square, the corresponding special-shaped shell is square. The periphery of the special-shaped shell 1 is abutted against the inner side wall of the water tank shell 7, so that interference fit is formed with the inner wall of the water tank shell 7, and a closed structure for preventing the polyurethane foaming material flowing in the cavity 9 from leaking is achieved.

Although there is still a very small gap at the contact point between the shaped casing 1 and the inner wall of the tank case 7, the shaped casing 1 has a certain thickness at the contact point of the tank case 7, and the uncured foaming agent is cured after filling the cavity 9 at a thickness distance when flowing through the gap, and does not leak to the outside of the tank case 7.

Referring to fig. 1, 2 and 4, in a preferred embodiment, the shaped shell 1 is made of a rigid foam material. The hard foam material enables the special-shaped shell 1 to have certain elasticity and can also play a role in supporting the inner container of the water tank.

Referring to fig. 1 and 4, in a preferred embodiment, the thickness of the shaped housing 1 at the contact point of the tank case 7 is greater than 10cm. The thickness is greater than 10cm, combined with the curing speed of the polyurethane foaming agent filled inside the cavity 9, so that it is cured at a thickness distance when flowing through the above gap and does not leak to the outside of the tank case 7.

Referring to fig. 1, in a preferred embodiment, the thickness of the profiled housing 1 at the gap of the tank housing 7 is in the range of (10-20) cm.

Referring to fig. 1, in a preferred embodiment, the profiled housing 1 is provided with a plurality of hollow holes 2, and the hollow holes 2 include a bottom plate screw hole 21, a tube head hole 22 and an electric heating hole 23.

Referring to fig. 1 and 2, in a preferred embodiment, a first limit groove 3 is formed in the front surface of the special-shaped shell 1, the shape of the first limit groove 3 is matched with the bottom head of the water tank liner 8, a supporting table 4 is arranged in the middle of the special-shaped shell 1, the first limit groove 3 is located on the supporting table 4, a second limit groove 5 is formed in the back surface of the special-shaped shell 1, and the second limit groove 5 corresponds to the position of the supporting table 4.

Referring to fig. 1 and 2, in a preferred embodiment, avoidance holes 6 are formed on the shaped shell 1 at two sides of the supporting table 4, the thickness of the shaped shell 1 at the avoidance holes 6 is a first thickness L1, the thickness of the shaped shell 1 at the supporting table 4 is a second thickness L2, and both the first thickness L1 and the second thickness L2 are greater than 10cm.

Referring to fig. 1 and 2, in a preferred embodiment, the bottom plate screw hole 21, the tube head hole 22 and the electric heating hole 23 are all located at the second limit groove 5.

Referring to fig. 3-6, the utility model further provides a heat preservation water tank, which comprises the special-shaped shell 1, a water tank shell 7 and a water tank liner 8, wherein the water tank liner 8 is positioned inside the water tank shell 7, a cavity 9 is formed between the water tank liner 8 and the water tank shell 7, a heat preservation material is filled in the cavity 9, the heat preservation material comprises a polyurethane hard foam body and the special-shaped shell 1, and the special-shaped shell 1 is positioned at a sealing head of the water tank liner 8.

Referring to fig. 5, in a preferred embodiment, the tank case 7 includes a bottom plate 70, a front plate 71, a rear plate 72 and a top plate 73, the cross section of the rear plate 72 is in a "U" shape, the front plate 71 and the rear plate 72 are connected to form a cylindrical structure, the bottom plate 70 and the top plate 73 are respectively connected to two ends of the cylindrical structure, thereby forming the tank case 7, the joint of the bottom plate 70 and the front plate 71 and the rear plate 72 is connected by buckling, so that the joint of the bottom plate 70 and the front plate 71 and the rear plate 72, the joint of the top plate 73 and the front plate 71 and the rear plate 72, and the joint of the front plate 71 and the rear plate 72 are formed with slits, and the tank liner includes a cylinder and sealing heads respectively fixed to two ends of the cylinder. The joint between the top plate 73 and the front panel 71 and the rear panel 72, and the joint between the front panel 71 and the rear panel 72 are linear gaps, and leakage prevention is performed by sticking a piece of masking paper or the like; however, the seam between the bottom plate 70 and the front panel 71 and the rear panel 72, and the hole positions of the screw holes and the pipe holes are complex, and the leakage prevention can be performed by clamping the special-shaped shell, so that the seam between the special-shaped shell 1 and the water tank shell 7 can prevent the polyurethane foam material from leaking to the outside of the water tank shell 7, time consumption, time and labor are saved greatly in the leakage prevention pasting process, and the overall assembly efficiency of the water tank is accelerated.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description of the terms "preferred embodiment," "further embodiment," "other embodiments," or "specific examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (10)

1. The utility model provides a prevent seal structure that polyurethane foaming leaked, its characterized in that, including setting up the dysmorphism casing between the head of water tank shell and water tank inner bag, dysmorphism casing is held in the bottom position of water tank shell, the front of dysmorphism casing is laminated mutually with the bottom plate of water tank shell, the back of dysmorphism casing is laminated mutually with the bottom head of water tank inner bag, the shape of dysmorphism casing is matchd with the cross sectional shape of water tank shell, makes the week of dysmorphism casing is inconsistent with the inside wall of water tank shell to form interference fit with the inner wall of water tank shell, reach the seal structure that prevents polyurethane foaming material and leak.

2. The closure structure of claim 1, wherein the shaped shell is a rigid foam.

3. The closure structure of claim 1, wherein the contoured housing body has a thickness greater than 10cm at the contact location of the cistern housing.

4. A closure structure according to claim 3, wherein the thickness of the profiled shell at the seam of the cistern housing is in the range of 10-20cm.

5. The enclosure of claim 1, wherein the shaped housing is formed with a plurality of hollowed-out holes, the hollowed-out holes including a base plate screw hole, a tube head hole, and an electrical heating hole.

6. The sealing structure of claim 5, wherein a first limit groove is formed in the front face of the special-shaped shell, the shape of the first limit groove is matched with that of a bottom sealing head of the water tank liner, a supporting table is arranged in the middle of the special-shaped shell, the first limit groove is located on the supporting table, a second limit groove is formed in the back face of the special-shaped shell, and the second limit groove corresponds to the supporting table.

7. The enclosure of claim 6, wherein the shaped shell has void-free spaces formed on both sides of the support platform, wherein the shaped shell has a first thickness at the void-free spaces and a second thickness at the support platform, and wherein the first and second thicknesses are each greater than 10cm.

8. The enclosure of claim 7, wherein the base plate screw hole, the tube head hole and the electrical heating hole are all located at the second limiting slot.

9. A heat preservation water tank, characterized by comprising the special-shaped shell, a water tank shell and a water tank liner, wherein the special-shaped shell is as claimed in any one of claims 1-8, the water tank liner is positioned inside the water tank shell, a cavity is formed between the water tank liner and the water tank shell, heat preservation materials are filled in the cavity, the heat preservation materials comprise polyurethane hard foam bodies and the special-shaped shell, and the special-shaped shell is positioned at a sealing head of the water tank liner.

10. The insulated water tank of claim 9, wherein the water tank housing includes a bottom plate, a front plate, a rear plate and a top plate, the rear plate has a "U" shape in cross section, the front plate and the rear plate are connected to form a cylindrical structure, the bottom plate and the top plate are respectively connected to two ends of the cylindrical structure, thereby forming the water tank housing, and the joint of the bottom plate and the front plate and the rear plate is connected by means of fastening, so that a gap is formed between the joint of the bottom plate and the front plate and the rear plate, and the water tank liner includes a cylinder and sealing heads respectively fixed to two ends of the cylinder.