CN220910184U - Mushroom head self-tapping screw for fixing heat-insulating plate in refrigeration house - Google Patents
Mushroom head self-tapping screw for fixing heat-insulating plate in refrigeration house Download PDFInfo
- Publication number
- CN220910184U CN220910184U CN202322661552.4U CN202322661552U CN220910184U CN 220910184 U CN220910184 U CN 220910184U CN 202322661552 U CN202322661552 U CN 202322661552U CN 220910184 U CN220910184 U CN 220910184U
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- Prior art keywords
- tapping screw
- self
- mushroom head
- head
- groove
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- 238000010079 rubber tapping Methods 0.000 title claims abstract description 76
- 235000001674 Agaricus brunnescens Nutrition 0.000 title claims abstract description 52
- 238000005057 refrigeration Methods 0.000 title description 13
- 229920003023 plastic Polymers 0.000 claims abstract description 33
- 239000004033 plastic Substances 0.000 claims abstract description 33
- 238000004321 preservation Methods 0.000 claims abstract description 20
- 239000000945 filler Substances 0.000 claims abstract description 14
- 229920002635 polyurethane Polymers 0.000 claims abstract description 13
- 239000004814 polyurethane Substances 0.000 claims abstract description 13
- 238000009413 insulation Methods 0.000 claims description 16
- 230000000694 effects Effects 0.000 abstract description 5
- 238000001816 cooling Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 4
- 239000011810 insulating material Substances 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Connection Of Plates (AREA)
Abstract
A self-tapping screw for fixing a heat-insulating board mushroom head in a cold storage comprises a self-tapping screw and a hollow plastic mushroom head, wherein a groove is formed in one side of the hollow plastic mushroom head, and an opening communicated with the groove is formed in the other side of the hollow plastic mushroom head; the self-tapping screw comprises a head, a threaded rod part and a rod part tail end, wherein the rod part tail end of the self-tapping screw sequentially penetrates through the groove and the opening and extends to the outer side of the hollow plastic mushroom head, the head of the self-tapping screw is arranged in the groove, the groove is further covered with a heat preservation cover, and heat preservation filler is further filled in the groove between the heat preservation cover and the head of the self-tapping screw. The application adopts the structural form of self-tapping screw and hollow plastic mushroom head, and polyurethane is filled in the mushroom head, so that the heat-insulating wallboard can be firmly fixed, and the cooling effect can be ensured.
Description
Technical Field
The utility model relates to the technical field of construction of heat-insulating plates of refrigerators, in particular to a mushroom head self-tapping screw for fixing heat-insulating plates of refrigerators.
Background
At present, most of the heat-insulating plates of the refrigeration house are made of polyurethane sandwich plates, the polyurethane sandwich plates are made of polyurethane heat-insulating materials, and the polyurethane heat-insulating materials are synthetic materials with excellent performance, have the advantages of high specific strength, small heat conductivity coefficient and the like, and are mainly used as heat-insulating materials and structural materials.
The conventional polyurethane sandwich board is fixed on a wall through heat preservation nails in an actual installation process, when the polyurethane sandwich board is used, holes are drilled in the expansion sleeve, the heat preservation nails are driven into the holes, the heat preservation nails generally comprise metal nail bodies and plastic nail caps, but for a steel structure frame wall, the heat preservation nails can only be fixed on purlines, and the heat preservation nails cannot be fixed firmly through conventional metal nail bodies and expansion sleeves, so that improvement is needed for the problems.
Disclosure of utility model
Aiming at the defects of the prior art, the utility model provides the mushroom head self-tapping screw for the cold storage fixing heat-insulating plate, which can be matched with purlines to fix the cold storage heat-insulating plate firmly and ensure the cold-breaking effect.
The technical problems to be solved by the utility model are realized by the following technical proposal. The utility model relates to a self-tapping screw for a mushroom head of a fixed heat-insulating plate of a refrigeration house, which comprises a self-tapping screw and a hollow plastic mushroom head, wherein one side of the hollow plastic mushroom head is provided with a groove, and the other side of the hollow plastic mushroom head is provided with an opening communicated with the groove; the self-tapping screw comprises a head, a threaded rod part and a rod part tail end, wherein the rod part tail end of the self-tapping screw sequentially penetrates through the groove and the opening and extends to the outer side of the hollow plastic mushroom head, the head of the self-tapping screw is arranged in the groove, the groove is further covered with a heat preservation cover, and heat preservation filler is further filled in the groove between the heat preservation cover and the head of the self-tapping screw.
The technical problem to be solved by the utility model can be further solved by the following technical scheme, for the self-tapping screw for fixing the mushroom head of the heat-insulating plate in the refrigeration house, the grooves and the holes are cylindrical, and the diameter of the grooves is larger than that of the holes.
The technical problem to be solved by the utility model can be further solved by the following technical scheme, and for the self-tapping screw for fixing the mushroom head of the heat-insulating plate in the refrigerator, the head of the self-tapping screw is regular hexagon or the head of the self-tapping screw is provided with an inner hexagonal groove.
The technical problem to be solved by the utility model can be further solved by the following technical scheme, and for the self-tapping screw for fixing the mushroom head of the heat-insulating plate in the refrigerator, the tail end of the rod part of the self-tapping screw is provided with a conical end.
The technical problem to be solved by the utility model can be further solved by the following technical scheme, and the heat-insulating cover is a plastic cover for the self-tapping screw for fixing the mushroom head of the heat-insulating plate in the refrigerator.
The technical problem to be solved by the utility model can be further solved by the following technical scheme, and for the self-tapping screw for fixing the mushroom head of the heat-insulating plate in the refrigeration house, the heat-insulating filler is polyurethane filler.
The technical problem to be solved by the utility model can be further solved by the following technical scheme, and for the self-tapping screw for fixing the mushroom head of the heat-insulating plate in the refrigeration house, the hollow plastic mushroom head comprises a flat hemispherical head part and a cylindrical tail part.
Compared with the prior art, the mushroom head self-tapping screw for the fixed heat-insulating plate of the cold storage provided by the utility model can well ensure the installation quality of the cold storage plate, greatly reduce the safety and quality risks caused by unstable installation, avoid the waste of electric power resources caused by cold leakage of the deformation of the cold storage plate due to unstable installation, and has the following beneficial effects:
(1) The self-tapping screw and hollow plastic mushroom head structure is adopted, the fixing effect of the structural form is good, and the service life is long;
(2) After the self-tapping screw is screwed, the mushroom head cavity can be filled with heat-insulating filler, and then the mushroom head cavity is plugged by the plastic cover, so that the air tightness is good, cold air in the cold storage is prevented from penetrating out of the cold storage, and the cold breaking effect is good.
Drawings
FIG. 1 is a schematic diagram of a structure of the present utility model;
fig. 2 is a use state diagram of the present utility model.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 to 2, a mushroom head self-tapping screw for a fixed heat-insulating plate of a refrigeration house comprises a self-tapping screw 2 and a hollow plastic mushroom head 1, wherein the self-tapping screw 2 is used for penetrating through the heat-insulating plate 10 of the refrigeration house and drilling into purlines 11 to realize the fixation operation of the heat-insulating plate 10 of the refrigeration house, and the hollow plastic mushroom head 1 is used for sealing the joint of the self-tapping screw 2 and the heat-insulating plate 10 of the refrigeration house, thereby not only helping to ensure the fixation firmness of the heat-insulating plate 10 of the refrigeration house, but also avoiding the leakage of cold air in the refrigeration house and having good air tightness;
Preferably, the hollow plastic mushroom head 1 comprises a flat hemispherical head 7 and a cylindrical tail;
Specifically, a groove 3 is arranged on one side of the hollow plastic mushroom head 1, and an opening 4 communicated with the groove 3 is arranged on the other side of the hollow plastic mushroom head 1 and is used for being matched with the tapping screw 2 to realize the installation connection with the tapping screw 2; the self-tapping screw 2 comprises a head 7, a threaded rod 8 and a rod tail end 9, wherein the rod tail end 9 of the self-tapping screw 2 sequentially penetrates through the groove 3 and the opening 4 and extends to the outer side of the hollow plastic mushroom head 1, the head 7 of the self-tapping screw 2 is arranged in the groove 3, and the rod tail end 9 of the self-tapping screw 2 is conveniently and sequentially drilled into the cold storage heat insulation plate 10 and the purline 11 to fix the cold storage heat insulation plate 10;
Preferably, the grooves 3 and the holes 4 are cylindrical, the diameter of the grooves 3 is larger than that of the holes 4, so that the rod part 8 of the tapping screw 2 can conveniently penetrate through the grooves 3 and the holes 4, and the head part 7 of the tapping screw 2 can only penetrate through the grooves 3 but cannot pass through the holes 4 and be blocked in the grooves 3, so that after the tapping screw 2 is drilled into the cold storage heat insulation plate 10 and the purline 11, the head part 7 of the tapping screw 2 can fix the hollow plastic mushroom head 1 on the cold storage heat insulation plate 10, and the reliable fixing of the hollow plastic mushroom head 1 is realized;
In order to improve the penetration force of the self-tapping screw 2, the tail end 9 of the rod part of the self-tapping screw 2 is provided with a conical end, and in order to facilitate the rotation of the self-tapping screw 2, the head 7 of the self-tapping screw 2 is in a regular hexagon shape or the head 7 of the self-tapping screw 2 is provided with an inner hexagonal groove;
The groove 3 is also covered with a heat preservation cover 6, the groove 3 between the heat preservation cover 6 and the head 7 of the tapping screw 2 is also filled with heat preservation filler 5, after the tapping screw 2 is drilled into the groove 3, the groove 3 can be filled with the heat preservation filler 5, and then the heat preservation cover 6 is covered, so that the plugging operation of the tapping screw 2 is realized, and the air tightness is good.
Preferably, the heat-insulating cover 6 is a plastic cover, the heat-insulating filler 5 is polyurethane filler, the heat insulation is good, and when in actual use, the polyurethane filler is filled in the form of polyurethane foaming agent, so that the operation is convenient.
The application provides a mushroom head self-tapping screw for a cold storage fixed heat-insulating plate 10, which is a novel heat-insulating screw structure, adopts the structural form of a self-tapping screw 2+ hollow plastic mushroom head 1, can firmly fix a heat-insulating wallboard, and can also ensure the cold-breaking effect; when the self-tapping screw 2 is used, the self-tapping screw 2 is firstly inserted into the hollow plastic mushroom head 1, then the self-tapping screw 2 is rotated by a spanner or an electric drill, so that the self-tapping screw 2 penetrates through the cold storage heat insulation plate 10 to drill into the purline 11, the length is determined according to the plate thickness, the self-tapping screw 2 can be drilled into the purline 11, a tight whole is formed between the screw thread of the rod part 8 of the self-tapping screw 2 and the wall of the purline 11 (the length of the self-tapping screw 2 is determined according to the thickness of the cold storage heat insulation plate 10, the length of the self-tapping screw 2 is required to be ensured to be enough), and then polyurethane filler is filled in the groove 3 of the hollow plastic mushroom head 1 and is blocked by a plastic cover, so that the air tightness of the cold storage heat insulation plate 10 is ensured, cold air in the cold storage is prevented from penetrating out of the cold storage is prevented, and the firmness of the cold storage heat insulation plate 10 is structurally ensured.
Claims (7)
1. A mushroom head self-tapping screw for a cold storage fixed heat insulation plate is characterized in that: the self-tapping screw comprises a self-tapping screw and a hollow plastic mushroom head, wherein a groove is formed in one side of the hollow plastic mushroom head, and an opening communicated with the groove is formed in the other side of the hollow plastic mushroom head; the self-tapping screw comprises a head, a threaded rod part and a rod part tail end, wherein the rod part tail end of the self-tapping screw sequentially penetrates through the groove and the opening and extends to the outer side of the hollow plastic mushroom head, the head of the self-tapping screw is arranged in the groove, the groove is further covered with a heat preservation cover, and heat preservation filler is further filled in the groove between the heat preservation cover and the head of the self-tapping screw.
2. The mushroom head self-tapping screw for fixing an insulation board in a cold storage according to claim 1, wherein: the grooves and the holes are cylindrical, and the diameter of the grooves is larger than that of the holes.
3. The mushroom head self-tapping screw for fixing an insulation board in a cold storage according to claim 1, wherein: the head of the self-tapping screw is regular hexagon or is provided with an inner hexagonal groove.
4. A cold store fixed insulation board mushroom head self-tapping screw according to claim 1 or 3, characterized in that: the tail end of the rod part of the self-tapping screw is provided with a conical end.
5. The mushroom head self-tapping screw for fixing an insulation board in a cold storage according to claim 1, wherein: the heat preservation cover is a plastic cover.
6. The mushroom head self-tapping screw for a cold store fixing insulation board according to claim 1 or 5, wherein: the heat-insulating filler is polyurethane filler.
7. The mushroom head self-tapping screw for fixing an insulation board in a cold storage according to claim 1, wherein: the hollow plastic mushroom head comprises a flat hemispherical head part and a cylindrical tail part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322661552.4U CN220910184U (en) | 2023-10-07 | 2023-10-07 | Mushroom head self-tapping screw for fixing heat-insulating plate in refrigeration house |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322661552.4U CN220910184U (en) | 2023-10-07 | 2023-10-07 | Mushroom head self-tapping screw for fixing heat-insulating plate in refrigeration house |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220910184U true CN220910184U (en) | 2024-05-07 |
Family
ID=90906127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322661552.4U Active CN220910184U (en) | 2023-10-07 | 2023-10-07 | Mushroom head self-tapping screw for fixing heat-insulating plate in refrigeration house |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220910184U (en) |
-
2023
- 2023-10-07 CN CN202322661552.4U patent/CN220910184U/en active Active
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| GR01 | Patent grant |