CN210945471U

CN210945471U - PVC protective film capable of preventing and reducing pressure-sensitive adhesive layer from falling off

Info

Publication number: CN210945471U
Application number: CN201922134581.9U
Authority: CN
Inventors: 陈奕帆
Original assignee: Guangdong Dongmei New Material Co ltd
Current assignee: Guangdong Dongmei New Material Co ltd
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2020-07-07
Anticipated expiration: 2029-12-03

Abstract

The utility model discloses a can prevent and reduce PVC protection film that pressure sensitive adhesive layer drops, including backup pad and PVC membrane body, the spout has been seted up at the both ends of backup pad bottom, the inside of spout is rotated and is connected with the lead screw, the lead screw runs through the side of spout and is connected with the knob, splint have been cup jointed through the screw thread on the lead screw, the sleeve has been run through to the bottom of splint, the sleeve passes through the bearing with splint and rotates to be connected, install first connecting rod on the sleeve, the side of first connecting rod is fixed with the limiting plate. By arranging the air bag and the connecting column, the protective film is not easy to generate permanent deformation after being impacted, thereby improving the strength of the protective film; the plurality of groups of heat-sensitive adhesive layers are arranged, so that the possibility of falling off of the heat-sensitive adhesive layers is effectively reduced, and the service life of the protective film is prolonged; through setting up blade and slide bar, conveniently cut PVC membrane body, simple structure improves the convenience that the device used.

Description

PVC protective film capable of preventing and reducing pressure-sensitive adhesive layer from falling off

Technical Field

The utility model relates to a PVC protection film technical field especially relates to the PVC protection film that can prevent and reduce pressure sensitive adhesive layer and drop.

Background

The protective film is functionally intended to cover a layer of film over the physical object that we are protecting. Functional protective films such as an AR anti-reflection film, an AG frosted anti-reflection film, a mobile phone mirror film, a peep-proof film, a high-definition scratch-proof film and the like are available on the market at present.

The existing protective film has defects when in use, and when the existing protective film is impacted by external force, the external force is difficult to reduce by the protective film, so that the product is damaged, and the use of the product is influenced; when in use, the utility model is not easy to tear due to no notch, which causes trouble and labor during tearing.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a PVC protective film capable of preventing and reducing the pressure sensitive adhesive layer from falling off.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the PVC protective film capable of preventing and reducing the pressure-sensitive adhesive layer from falling comprises a supporting plate and a PVC film body, wherein sliding grooves are formed in two ends of the bottom of the supporting plate, a lead screw is rotatably connected inside the sliding grooves, the lead screw penetrates through the side face of the sliding grooves and is connected with a knob, a clamping plate is sleeved on the lead screw through threads, a sleeve penetrates through the bottom of the clamping plate and is rotatably connected with the clamping plate through a bearing, a first connecting rod is installed on the sleeve, a limiting plate is fixed on the side face of the first connecting rod, a second connecting rod is fixed on the side face of the limiting plate, a roller shaft is arranged between the two second connecting rods, a PVC protective film body is wound on the roller shaft, the PVC film body comprises a first PVC base layer, a connecting column is fixed on the top of the first PVC base layer, a second PVC base layer is fixed on the top of the connecting column, and a, the top of the breathable layer is bonded with an isolation layer, and the top of the isolation layer is bonded with a polyethylene layer.

Preferably, the two ends of the bottom of the supporting plate are fixedly provided with supports, two sliding rods are fixedly connected between the supports, the sliding sleeves are movably sleeved on the sliding rods, and the bottom of each sliding sleeve is fixedly provided with a blade.

Preferably, the sliding sleeve is in sliding connection with the sliding rod through a spline.

Preferably, the connecting column is made of rubber, and an air bag is arranged between the first PVC base layer and the second PVC base layer.

Preferably, the top of the polyethylene layer is bonded with three thermosensitive adhesive layers.

Preferably, the sleeve is connected with the first connecting rod through a spline, and the second connecting rod is connected with the roller shaft through a flat key.

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

1. when the PVC film is extruded by external force, the first PVC base layer moves towards the second PVC layer, the first PVC base layer extrudes the air bag, the air bag is in a compression state by external force, meanwhile, the first PVC base layer extrudes the connecting column, after the external force is removed, the connecting column is restored under self elasticity, the air bag is restored to the original state to extrude the first PVC base layer, so that the strength of the protective film is improved, meanwhile, the bonding area of the PVC film body and an object is increased by arranging three groups of heat-sensitive adhesive layers, the possibility that the heat-sensitive adhesive layers fall off is effectively reduced, and the service life of the protective film is prolonged;

2. the utility model discloses in during installation, with the second connecting rod of roller and backup pad one side, rotatory knob, the knob drives the lead screw, the lead screw passes through screw thread transmission and drives splint, splint drive the sleeve, the sleeve drives first connecting rod, first connecting rod drives the limiting plate, the limiting plate drives the second connecting rod, two second connecting rods press from both sides the roller simultaneously tightly, during the pad pasting, at first outwards stimulate PVC membrane body, PVC membrane body drives the roller, the roller passes through the parallel key and drives the second connecting rod, the second connecting rod drives the limiting plate, the limiting plate drives first connecting rod, first connecting rod rotates on splint, unreel PVC membrane body, when unreeling suitable length, stimulate the sliding sleeve, the axial motion of slide bar is followed to the sliding sleeve, the sliding sleeve drives the blade, the blade moves on PVC membrane body and forms the incision, the convenience is cut PVC membrane body, moreover, the steam generator is simple in structure, the convenience that the improvement.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the PVC protective film according to the present invention, which can prevent and reduce the pressure-sensitive adhesive layer from falling off;

fig. 2 is a side cross-sectional view of the PVC film body of the PVC protective film of the present invention for preventing and reducing the pressure sensitive adhesive layer from falling off;

fig. 3 is a partial top view of the PVC film body of the PVC protective film according to the present invention, which can prevent and reduce the pressure sensitive adhesive layer from falling off;

fig. 4 is a schematic structural diagram of a second embodiment of the PVC protective film according to the present invention, which can prevent and reduce the pressure-sensitive adhesive layer from dropping.

In the figure: the device comprises a supporting plate 1, a knob 2, a screw rod 3, a clamping plate 4, a sleeve 5, a first connecting rod 6, a limiting plate 7, a second connecting rod 8, a roller shaft 9, a first PVC base layer 10, an air bag 11, a connecting column 12, a second PVC base layer 13, a ventilation layer 14, an isolation layer 15, a polyethylene layer 16, a pressure-sensitive adhesive layer 17, a support 18, a sliding sleeve 19, a blade 20 and a sliding rod 21.

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.

The first embodiment is as follows:

referring to fig. 1-3, a PVC protection film capable of preventing and reducing the falling of a pressure sensitive adhesive layer comprises a support plate 1 and a PVC film body, wherein two ends of the bottom of the support plate 1 are provided with sliding grooves, the inside of the sliding grooves is rotatably connected with a screw rod 3, the screw rod 3 penetrates through the side surface of the sliding grooves and is connected with a knob 2, a clamping plate 4 is sleeved on the screw rod 3 through threads, a sleeve 5 penetrates through the bottom of the clamping plate 4, the sleeve 5 is rotatably connected with the clamping plate 4 through a bearing, a first connecting rod 6 is installed on the sleeve 5, a limiting plate 7 is fixed on the side surface of the first connecting rod 6, a second connecting rod 8 is fixed on the side surface of the limiting plate 7, a roller shaft 9 is arranged between the two second connecting rods 8, a PVC protection film body is wound on the roller shaft 9, the PVC film body comprises a first PVC base layer 10, a connecting column 12 is fixed on the top of the first PVC base layer, a barrier layer 15 is bonded to the top of the breathable layer 14 and a polyethylene layer 16 is bonded to the top of the barrier layer 15.

Wherein, the material of spliced pole 12 is rubber, is provided with gasbag 11 between first PVC basic unit 10 and the second PVC basic unit 13.

Wherein, the top of polyethylene layer 16 is bonded with thermal sensitive adhesive layer 17, and the number of thermal sensitive adhesive layers 17 is three.

Wherein, the sleeve 5 is connected with the first connecting rod 6 through a spline, and the second connecting rod 8 is connected with the roll shaft 9 through a flat key.

The second implementation:

referring to fig. 2-4, a PVC protection film capable of preventing and reducing the falling of a pressure sensitive adhesive layer comprises a support plate 1 and a PVC film body, wherein two ends of the bottom of the support plate 1 are provided with sliding grooves, the inside of the sliding grooves is rotatably connected with a screw rod 3, the screw rod 3 penetrates through the side surface of the sliding groove and is connected with a knob 2, a clamping plate 4 is sleeved on the screw rod 3 through threads, a sleeve 5 penetrates through the bottom of the clamping plate 4, the sleeve 5 is rotatably connected with the clamping plate 4 through a bearing, a first connecting rod 6 is installed on the sleeve 5, a limiting plate 7 is fixed on the side surface of the first connecting rod 6, a second connecting rod 8 is fixed on the side surface of the limiting plate 7, a roller shaft 9 is arranged between the two second connecting rods 8, a PVC protection film body is wound on the roller shaft 9, the PVC film body comprises a first PVC base layer 10, a connecting column 12 is fixed on the top of the first PVC base layer, a barrier layer 15 is bonded to the top of the breathable layer 14 and a polyethylene layer 16 is bonded to the top of the barrier layer 15.

Wherein, the two ends of the bottom of the supporting plate 1 are fixed with brackets 18, a sliding rod 21 is fixedly connected between the two brackets 18, the sliding rod 21 is movably sleeved with a sliding sleeve 19, and the bottom of the sliding sleeve 19 is fixed with a blade 20.

Wherein, the sliding sleeve 19 is connected with the sliding rod 21 in a sliding way through a spline.

The working principle is as follows: when the PVC film is extruded by external force, the first PVC base layer 10 moves towards the second PVC layer, the first PVC base layer 10 extrudes the air bag 11, the air bag 11 is in a compression state by the external force, meanwhile, the first PVC base layer 10 extrudes the connecting column 12, after the external force is removed, the connecting column 12 recovers under the self elasticity, and the air bag 11 recovers to extrude the first PVC base layer 10, so that the strength of the protective film is improved, meanwhile, the bonding area of the PVC film body and an object is increased by arranging the three groups of heat-sensitive adhesive layers 17, the possibility that the heat-sensitive adhesive layers 17 fall off is effectively reduced, and the service life of the protective film is prolonged;

when the PVC film sticking device is installed, the roll shaft 9 and the second connecting rods 8 on one side of the supporting plate 1 are connected, the knob 2 is rotated, the knob 2 drives the screw rod 3, the screw rod 3 drives the clamping plate 4 through screw transmission, the clamping plate 4 drives the sleeve 5, the sleeve 5 drives the first connecting rod 6, the first connecting rod 6 drives the limiting plate 7, the limiting plate 7 drives the second connecting rods 8, the two second connecting rods 8 simultaneously clamp the roll shaft 9, when a film is stuck, the PVC film body firstly pulls the PVC film body outwards, the PVC film body drives the roll shaft 9, the roll shaft 9 drives the second connecting rods 8 through flat keys, the second connecting rods 8 drive the limiting plate 7, the limiting plate 7 drives the first connecting rods 6, the first connecting rods 6 rotate on the clamping plate 4 to unreel the PVC film body, when the PVC film body is unreeled with proper length, the sliding sleeve 19 is pulled, the sliding sleeve 19 moves along the axial direction of the sliding rods 21, the sliding sleeve 19 drives, simple structure improves the convenience that the device used.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. Can prevent and reduce PVC protection film that pressure sensitive adhesive layer drops, including backup pad (1) and PVC membrane body, its characterized in that, the spout has been seted up at the both ends of backup pad (1) bottom, the inside of spout is rotated and is connected with lead screw (3), lead screw (3) run through the side of spout and are connected with knob (2), splint (4) have been cup jointed through the screw thread on lead screw (3), sleeve (5) have been run through to the bottom of splint (4), sleeve (5) and splint (4) are connected through the bearing rotation, install first connecting rod (6) on sleeve (5), the side of first connecting rod (6) is fixed with limiting plate (7), the side of limiting plate (7) is fixed with second connecting rod (8), two be provided with roller (9) between second connecting rod (8), the winding has PVC protection membrane body on roller (9), the PVC membrane body comprises a first PVC base layer (10), a connecting column (12) is fixed to the top of the first PVC base layer (10), a second PVC base layer (13) is fixed to the top of the connecting column (12), a breathable layer (14) is bonded to the top of the second PVC base layer (13), an isolation layer (15) is bonded to the top of the breathable layer (14), and a polyethylene layer (16) is bonded to the top of the isolation layer (15).

2. The PVC protective film capable of preventing and reducing the pressure-sensitive adhesive layer from falling off according to claim 1, wherein two ends of the bottom of the support plate (1) are fixed with brackets (18), a sliding rod (21) is fixedly connected between the two brackets (18), the sliding rod (21) is movably sleeved with a sliding sleeve (19), and a blade (20) is fixed at the bottom of the sliding sleeve (19).

3. The PVC protective film capable of preventing and reducing the pressure-sensitive adhesive layer from falling off as claimed in claim 2, wherein the sliding sleeve (19) is slidably connected with the sliding rod (21) through a spline.

4. The PVC protective film for preventing and reducing the peeling of the pressure sensitive adhesive layer according to claim 1, wherein the connecting columns (12) are made of rubber, and an air bag (11) is arranged between the first PVC base layer (10) and the second PVC base layer (13).

5. The PVC protective film for preventing and reducing the peeling of the pressure sensitive adhesive layer according to claim 1, wherein the top of the polyethylene layer (16) is bonded with a thermo-sensitive adhesive layer (17), and the number of the thermo-sensitive adhesive layers (17) is three.

6. The PVC protective film capable of preventing and reducing the pressure-sensitive adhesive layer from falling off is characterized in that the sleeve (5) is connected with the first connecting rod (6) through a spline, and the second connecting rod (8) is connected with the roller shaft (9) through a flat key.