CN210423541U

CN210423541U - Physical foaming polypropylene shock-absorbing cushion block

Info

Publication number: CN210423541U
Application number: CN201921425516.5U
Authority: CN
Inventors: 杨有财; 岳超刚; 高雷; 梁坤; 栗磊; 李方方
Original assignee: Qingdao New Material Technology Industrial Park Development Co ltd
Current assignee: Qingdao New Material Technology Industrial Park Development Co ltd
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2020-04-28
Anticipated expiration: 2029-08-30

Abstract

The utility model discloses a physics foaming polypropylene cushion block, including first cushion and second cushion, first cushion lower extreme tip is provided with first chamfer, first chamfer is provided with first circular arc chamfer with the department that links to each other of first cushion, the fixed orifices has been seted up to first cushion left side surface central line, the hand-drawing groove has been seted up respectively to first cushion left side surface both sides, the second cushion is including second left cushion and second right cushion, second left cushion upper end left side is provided with second circular arc chamfer, and second left cushion right side fixed surface is connected with the dead lever. This physics foaming polypropylene shock pad, the weld strength of EPP granule is high, and toughness is good, can not break when closing the door extrusion deformation, can keep the cushion complete, when increasing the life of device, the practicality of reinforcing device can support the door body simultaneously and prevent that the door body from sinking, can play better shock attenuation effect, avoids rocking the destruction to the door body in the transportation.

Description

Physical foaming polypropylene shock-absorbing cushion block

Technical Field

The utility model relates to a cushion block technical field specifically is a physics foaming polypropylene cushion block.

Background

The physical foaming polypropylene foam (EPP) is a physical foaming material produced by a supercritical carbon dioxide foaming technology, is a novel high-crystallization polymer composite material with excellent performance, and compared with the traditional EPS foaming material, the physical foaming polypropylene foam not only has the characteristics of light weight and the like, but also has better heat resistance, mechanical property, thermal insulation property, high impact energy absorption capacity and rebound resilience, and is excellent in stress cracking resistance. The EPP has optimal impact resistance, does not drop slag or crack after impact, and is an optimal damping transportation buffer material for fragile products such as glass and the like; the same buffering requirement is achieved, the thickness of the packaging material only needs half of that of EPS, the using amount of the packaging material can be reduced, and the packaging material is more environment-friendly.

But the packaging protection of the existing household appliances such as refrigerators, freezers, wine cabinets, dish washers and the like mostly adopts expandable polystyrene foam (EPS), but EPS packaging products are fragile and cannot be recycled; the product compressive strength and the compression rebound rate are lower, in recent years, household appliances develop towards high-end and intelligent directions, the volume and the weight of high-end household appliances are continuously increased, intelligent household appliances carry more and more precise fragile electronic parts such as liquid crystal screens, and the bearing capacity and the shock absorption performance of EPS foam can not meet the requirements.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a physical foaming polypropylene damping cushion block, which aims to solve the problems that the prior packaging protection of household appliances such as refrigerators, freezers, wine cabinets, dish washers and the like in the background art mostly adopts expandable polystyrene foam (EPS), but EPS packaging products are fragile and cannot be recycled; the product has lower compression strength and compression rebound rate; the product degradation is difficult and form "white pollution" easily, and in recent years, household electrical appliances develop towards high-end and intelligent direction, and the volume and the weight of high-end household electrical appliances are constantly increasing, and intelligent household electrical appliances carry like precision fragile electronic components such as LCD screen more and more, and the bearing capacity and the shock attenuation performance of EPS foam can not satisfy the problem of requirement.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a physics foaming polypropylene cushion, includes first cushion and second cushion, first cushion lower extreme tip is provided with first chamfer, first chamfer and the first cushion department of linking to each other are provided with first circular arc chamfer, the fixed orifices has been seted up to first cushion left side surface central line, the hand-pulled groove has been seted up respectively to first cushion left side surface both sides, the second cushion is including second left cushion and second right cushion, second left cushion upper end left side is provided with second circular arc chamfer, and second left cushion right side fixed surface is connected with the dead lever, second right cushion upper end right side is provided with second circular arc chamfer, and second right cushion left side fixed surface is connected with the dead lever.

Preferably, the first cushion block left side surface fixing holes are symmetrically distributed and arranged in three equidistance relative to the first cushion block vertical center line, the first cushion block right side surface fixing holes are symmetrically distributed and arranged in three equidistance relative to the first cushion block vertical center line, and the first cushion block left side surface fixing holes and the first cushion block right side surface fixing holes are asymmetrically distributed.

Preferably, three side surface fixing rods of the second left cushion block and the second right cushion block are symmetrically distributed and installed at equal intervals relative to the vertical center line of the side surfaces of the second left cushion block and the second right cushion block, and the size of the side surface fixing rods of the second left cushion block and the second right cushion block is matched with that of the fixing holes.

Preferably, the maximum thickness of the first cushion block and the second cushion block is in interference fit, the thickness exceeds the clearance of the door body by 0.2-0.8mm, and the wall thickness reduction part of the first cushion block and the second cushion block is 0.4-0.8 times of the maximum wall thickness of the first cushion block and the second cushion block.

Preferably, the first cushion block and the second cushion block are made of EPP materials with high compressive strength.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the physical foaming polypropylene damping cushion block has high welding strength and good toughness of EPP particles, can not crack when being closed and extruded to deform, can keep the integrity of the cushion block, prolongs the service life of the device and enhances the practicability of the device;

2. this physics foaming polypropylene cushion can support the door body and prevent that the door body from sinking, if remove external force after receiving the compression can reply deformation more than 95% fast, so can play better shock attenuation effect, avoid rocking the destruction to the door body in the transportation, foaming cushion thickness adopts the interference design, can make the door body have certain pretightning force, has reduced the possibility that the door body rocked.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the split structure of the present invention;

FIG. 3 is a schematic side view of the present invention;

fig. 4 is a schematic view of a cross-sectional structure of the first pad of the present invention.

In the figure: 1. a first cushion block; 2. a second cushion block; 3. a first chamfer; 4. a first arc chamfer; 5. a fixing hole; 6. a hand-pulled groove; 7. a second left cushion block; 8. a second right cushion block; 9. a second arc chamfer; 10. and (5) fixing the rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a physics foaming polypropylene cushion, including first cushion 1 and

second cushion

2, 1 lower extreme tip of first cushion is provided with first chamfer 3, first chamfer 3 is provided with first circular arc chamfer 4 with 1 department of linking to each other of first cushion, fixed orifices 5 has been seted up to 1 left side surface central line of first cushion, hand pull groove 6 has been seted up respectively to 1 left side surface both sides of first cushion, second cushion 2 is including the left cushion 7 of second and the right cushion 8 of second, 7 upper end left sides of the left cushion of second are provided with second

circular arc chamfer

9, and 7 right side fixed surface of the left cushion of second are connected with

dead lever

10, 8 upper end right sides of the right cushion of second are provided with second

circular arc chamfer

9, and 8 left side fixed surface of the right cushion of second are connected with dead lever 10.

Further, the first cushion block 1 left side surface fixing holes 5 are equidistantly and symmetrically distributed three about the first cushion block 1 vertical center line, the first cushion block 1 right side surface fixing holes 5 are equidistantly and symmetrically distributed three about the first cushion block 1 vertical center line, and the first cushion block 1 left side surface fixing holes 5 and the first cushion block 1 right side surface fixing holes 5 are asymmetrically distributed, so that collision can be avoided when the fixing rod 10 of the second left cushion block 7 and the fixing rod 10 of the second right cushion block 8 are fixed.

Furthermore, the fixing rods 10 on the side surfaces of the second left cushion block 7 and the second right cushion block 8 are symmetrically distributed and installed in an equidistant mode about the vertical center lines of the side surfaces of the second left cushion block 7 and the second right cushion block 8, the size of the fixing rods 10 on the side surfaces of the second left cushion block 7 and the second right cushion block 8 is matched with the size of the fixing holes 5, and the second left cushion block 7 and the second right cushion block 8 can be firmly fixed on the side surface of the first cushion block 1.

Furthermore, the maximum thickness of the first cushion block 1 and the second cushion block 2 is in interference fit, the thickness exceeds 0.2-0.8mm of the gap of the door body, the wall thickness reduction parts of the first cushion block 1 and the second cushion block 2 are 0.4-0.8 times of the maximum wall thickness of the first cushion block 1 and the second cushion block 2, and certain pretightening force is generated after installation, so that a better damping effect can be achieved.

Further, first cushion 1 and second cushion 2 adopt the EPP material of high compressive strength, and the welding strength of EPP material granule is high, and toughness is good, can support the door body and prevent that the door body from sinking, if receive after the compression external force can reply deformation more than 95% fast, so can play better shock attenuation effect.

The working principle is as follows: when the physical foaming polypropylene shock absorption cushion block is used for shock absorption and fixation of a refrigerator door, the maximum thickness of a first cushion block 1 and a second cushion block 2 is firstly selected according to the left-right gap and the upper-lower gap of the door body, after the selection is finished, a fixing rod 10 fixedly installed on the side surfaces of a second left cushion block 7 and a second right cushion block 8 and a fixing hole 5 formed in the surface of the first cushion block 1 are kept on the same horizontal line, then the fixing rod 10 is deeply inserted into the fixing hole 5, so that the second left cushion block 7 and the second right cushion block 8 are firmly fixed on the side surface of the first cushion block 1, for convenient installation, the front end parts of the first cushion block 1 and the second cushion block 2 which are contacted at the beginning of the closing of the door body are designed to have reduced wall thickness, then the wall thickness is gradually increased until the same as the maximum wall thickness, the door body is convenient to be positioned and closed along the front end of the cushion, the left cushion 7 of second and the right cushion 8 of second play fixed controlling the door body, prevent the effect that the door body rocked, and the high compressive strength's of EPP material granule welding strength is high, and toughness is good, if remove external force after receiving the compression can reply deformation more than 95% fast, can not break when closing the door extrusion deformation, can keep the cushion complete, and hand pull 6 has been seted up to 1 piece of first cushion can make things convenient for this cushion to install or take off.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a physics foaming polypropylene cushion, includes first cushion and second cushion, its characterized in that: the utility model discloses a first cushion, including first cushion, second cushion, first chamfer and first cushion, first cushion lower extreme tip is provided with first chamfer, first chamfer and the first cushion department of linking to each other are provided with first circular arc chamfer, the fixed orifices has been seted up to first cushion left side surface central line, the hand-pulled groove has been seted up respectively to first cushion left side surface both sides, the second cushion is including second left cushion and second right cushion, second left cushion upper end left side is provided with second circular arc chamfer, and the left side of second cushion fixed surface is connected with the dead lever, second right cushion upper end right side is provided with second circular arc chamfer, and the right side of second cushion left side fixed surface is connected with the dead.

2. The physically foamed polypropylene cushion block of claim 1, wherein: the first cushion block left side surface fixing holes are symmetrically distributed at equal intervals relative to the first cushion block vertical center line, the first cushion block right side surface fixing holes are symmetrically distributed at equal intervals relative to the first cushion block vertical center line, and the first cushion block left side surface fixing holes and the first cushion block right side surface fixing holes are asymmetrically distributed.

3. The physically foamed polypropylene cushion block of claim 1, wherein: and the side surface fixing rods of the second left cushion block and the second right cushion block are symmetrically distributed and installed in an equidistant manner relative to the vertical center line of the side surface of the second left cushion block and the vertical center line of the side surface of the second right cushion block, and the size of the side surface fixing rods of the second left cushion block and the second right cushion block is matched with that of the fixing holes.

4. The physically foamed polypropylene cushion block of claim 1, wherein: the maximum thickness of the first cushion block and the second cushion block is assembled in an interference mode, the thickness exceeds 0.2-0.8mm of the gap of the door body, and the wall thickness reduction parts of the first cushion block and the second cushion block are 0.4-0.8 times of the maximum wall thickness of the first cushion block and the second cushion block.

5. The physically foamed polypropylene cushion block of claim 1, wherein: the first cushion block and the second cushion block are made of EPP materials with high compression strength.