CN107893516B

CN107893516B - Corner protector

Info

Publication number: CN107893516B
Application number: CN201711097907.4A
Authority: CN
Inventors: 闫栩
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-11-09
Filing date: 2017-11-09
Publication date: 2020-02-14
Anticipated expiration: 2037-11-09
Also published as: CN107893516A

Abstract

The invention discloses a corner protector, comprising: a corner frame; a double-sided adhesive block; the main supporting pieces correspond to the blind holes one by one, are partially accommodated into the blind holes and are supported at the bottoms of the blind holes, and the length of the main supporting pieces in the normal direction of the corresponding attaching surfaces is less than or equal to the thickness of the double-sided adhesive blocks; and the protective layer is attached to the surface of the double-sided adhesive block, which is deviated from the attaching surface, and the surface of the protective layer, which is attached to the double-sided adhesive block, is a degumming surface. The installation of the corner wall protection does not depend on special tools, so that the construction is easy.

Description

Corner protector

Technical Field

The invention relates to a corner protector, which is also called corner protector strip.

Background

The corner protector is one kind of ornament for protecting corner. The overall structure of the corner protection device is similar to that of equal-edge angle steel, as shown in fig. 1, the functional body for protecting the corner is an equal-edge angle frame 3, the equal-edge angle frame 3 is provided with two strip-

shaped plate surfaces

31 and 33 which are perpendicular to each other, an intersection line 32 is formed at the joint of the strip-shaped plate surfaces 31 and the strip-shaped plate surfaces 33, and the intersection line 32 needs to be attached to or parallel to the corner line. When the wall corner protector is installed, two strip-shaped plate surfaces which are usually perpendicular to each other are correspondingly attached to two wall surfaces forming the wall corner and fixed on the wall body, so that the wall corner protector can be used for protecting the wall corner which is relatively fragile and easy to adhere dirt.

The structure for fixedly connecting the equilateral angle frame 3 with the wall surface is mainly of two types, the first structure is that expansion bolts are arranged on the wall, the equilateral angle frame 3 is fixed on the wall surface through bolts, and the first structure has the advantages that the expansion bolts can be arranged on the wall surface in advance, the positioning of the expansion bolts is not influenced by the alignment of the equilateral angle frame 3 and the wall surface, and the overall positioning is accurate. The disadvantage is that the bolt head is exposed outside the equilateral angle frame 3, which affects the whole aesthetic property, even if the round head bolt is adopted, the disadvantage of poor whole aesthetic property still exists; still another disadvantage is that special tools are required for driving the expansion bolts, and the construction cannot be completed by the ordinary families alone.

The second structure for fixedly connecting the equilateral angle frame 3 to the wall surface is a sticking structure as shown in fig. 1 and 3, wherein the strip plate surface 31 positioned at the lower part in the figure is an assembly, the strip plate surface 33 positioned at the upper part is an explosion figure, and as can be seen from the explosion figure, in the corner protector of this type, the double-faced adhesive tape blocks 2 are usually preset at least at the upper and lower ends (upper and lower ends in the installation state) of the inner surface of the strip plate surface 33 in advance, and the double-faced adhesive tape blocks 2 are stuck with wax paper 1, for example, so as to facilitate transportation and protect the double-faced adhesive tape blocks 2 from being polluted. When the wall corner is installed, the wax paper 1 is torn off, and then the wall corner can be installed. Its advantages are no need of special tool and easy installation. However, the disadvantage is very obvious, and people with a little life experience know that even a ruler with a single-plate structure is aligned with a measured object by sliding for a plurality of times, and the equal corner money 3 with two strip-shaped plate surfaces is aligned with two wall surfaces, so that the difficulty is higher by several orders of magnitude than that of the ruler with the single-plate structure. Especially, receive the influence of the double faced adhesive tape piece 2 who tears away wax paper 1's adhesion performance, hardly find the alignment with the gliding mode, in actual construction, often place according to the expectation as far as possible and level, the alignment that this type of corner bead was difficult to accomplish the expectation, many times can only single bar face 33 glue on the wall, another face then can't be fixed with the wall, perhaps the bonding dynamics is very weak to single bar plate also is difficult to accomplish vertically.

The chinese patent document CN206418784U proposes its own solution for the problem that the second structure cannot be adhered tightly to the wall, and the joint of the two strip-shaped panels is denoted as a first corner, and the wall thickness of the first corner is smaller than the other parts of the corner wall, so that the elastic deformation of the first corner can be used to align the first corner with the corner wall in advance, and then the two strip-shaped panels are easily aligned with the corresponding wall surface. However, although the types of the corner wall protection materials are various, the most common materials are plastics, such as PP and PE, which often have certain hardness and brittleness, and when two hands fold two strip-shaped plate surfaces, the force control is relatively difficult, and what degree the two strip-shaped plate surfaces need to be folded is often uncertain for users; in addition, due to the fact that the double-faced adhesive tape block 2 is adhered to the wall surface in advance, a user can turn over a large angle frequently, and therefore the strip-shaped board surface is separated from the wall surface by a safe distance. In addition, the design at first turning also can be more difficult, lies in because its setting of being partial to inboard owing to need it, under the condition that the wall thickness is less than other parts of corner wall, just can satisfy its condition of aliging with the corner wall under, the laminating of bar face and corresponding wall, its outside must be concave structure, influences the holistic aesthetic property of corner wall.

In the first structure, for example, chinese patent document CN202831465U, a glass strip plate is used, and holes are formed in the strip plate, and then the glass strip plate is fixed by nuts. The existence of the nut can influence the influence, and because the expansion bolt matched with the nut needs to be driven, the construction difficulty is relatively higher.

In order to overcome the problem of aesthetic appearance, the first structure, such as chinese patent document CN202559630U, adopts a profile structure, and the structural part for fixing with the wall surface by bolts or screws forms a base, and a decorative layer is covered on the base, so that the problem of aesthetic appearance caused by the exposed screw cap or screw head can be solved. However, the construction difficulty is further increased, and users often cannot finish the installation of the wall corner guard by themselves.

Disclosure of Invention

It is an object of the present invention to provide a corner protector which is easily aligned with a corner and which is relatively easy to install without relying on special tools.

A corner protector, comprising:

the corner frame is provided with a first strip-shaped plate surface and a second strip-shaped plate surface which have the same length and are provided with sticking surfaces, and the two strip-shaped plate surfaces share a long edge and are mutually vertical;

the double-sided adhesive block is arranged on the corresponding sticking surface along the long edge direction, the surface of the double-sided adhesive block, which is far away from the sticking surface, is provided with no less than four blind holes, the blind holes are distributed on the double-sided adhesive block in a row-column matrix manner, and the row direction or the column direction is parallel to the long edge;

the main supporting pieces correspond to the blind holes one by one, are partially accommodated into the blind holes and are supported at the bottoms of the blind holes, and the length of the main supporting pieces in the normal direction of the corresponding attaching surfaces is less than or equal to the thickness of the double-sided adhesive blocks; and

and the protective layer is attached to the surface of the double-sided adhesive block, which is deviated from the attaching surface, and the surface of the protective layer, which is attached to the double-sided adhesive block, is a degumming surface.

Optionally, the length of the main supporting sheet in the normal direction of the corresponding attaching surface is the same as the sum of the depth of the blind hole in the double-sided adhesive block and the thickness of the protective layer;

correspondingly, the protective layer is provided with first through holes corresponding to the blind holes.

Optionally, the depth of the blind hole is greater than or equal to one half of the thickness of the double-sided adhesive tape block and is not greater than seven eighth of the thickness of the double-sided adhesive tape block.

Optionally, the double-sided adhesive block is a rectangular block, and the edge of the double-sided adhesive block parallel to the long edge is a vertical edge;

the blind holes are divided into two vertical rows and are offset at the inner sides of the corresponding vertical edges.

Optionally, the distance between the blind hole vertical column and the corresponding vertical edge is not less than 5mm and not more than 8 mm.

Optionally, the blind holes are strip-shaped blind holes, the width of each blind hole is 1-2 mm, the length of each blind hole is 5-10 mm, and the width and the length are positively correlated.

Optionally, through holes staggered with the blind holes are further formed in the double-sided adhesive tape block, and at least three through holes are formed, but not more than five through holes are formed;

correspondingly, a second through hole which is opposite to the through hole is formed in the protective layer;

and providing a protection plate, wherein the protection plate is provided with a plate body attached to the protection layer and auxiliary supporting sheets with the same number as the through holes and aligned with the through holes, and the auxiliary supporting sheets are supported on the corresponding attaching surfaces through the aligned second through holes and the through holes.

Optionally, the secondary support sheet is of a rectangular sheet structure and is integrated with the plate body.

Optionally, the secondary support sheet is parallel to the primary support sheet and is located inside the primary support sheet.

Optionally, each of the attaching surfaces is configured with two double-sided adhesive blocks, and the two double-sided adhesive blocks are respectively disposed at the upper end and the lower end of the attaching surface.

According to the embodiment of the invention, the blind holes are formed in the double-sided adhesive layer, the main support piece is embedded by utilizing certain rigidity of the wall surface of the blind hole, and the main support piece protrudes out of the surface of the double-sided adhesive block, so that the double-sided adhesive block cannot be in direct contact with the wall surface due to the existence of the main support piece in the aligning process of the corner frame and the wall corner, the strip-shaped board surface is pressed after the corner frame and the wall corner are aligned, and the main support piece is pressed into the double-sided adhesive block, so that the adhesive block is combined with the wall surface. This arrangement does not rely on special tools and is as convenient to install in a corner as the known corner protector shown in figure 1, and can be done independently by the user.

Drawings

Fig. 1 is a schematic structural diagram of a conventional corner wall (single-side exploded view).

Fig. 2 is a schematic view of a corner protector structure according to the present invention (single-side exploded view).

Fig. 3 is a schematic view of an equilateral angle frame structure.

Fig. 4 is a schematic front view of a double-sided adhesive block according to an embodiment.

FIG. 5 is a schematic view of a stencil structure according to an embodiment.

Fig. 6 is a schematic structural diagram of a protection plate according to an embodiment.

In the figure: 1, wax paper, 2, double-faced adhesive tape blocks, 3, an equilateral angle frame, 4, a main supporting sheet and 5, a protective plate.

11, a first via hole, 12, a second via hole, 13, a paper body.

21, through holes, 22, blind holes and 23, colloid.

31, strip plate surface, 32 intersecting line and 33 strip plate surface.

51, secondary support sheet, 52, plate body.

Detailed Description

Referring to fig. 1 to 3 of the specification, for convenience of drawing, the equilateral corner frames 3 are horizontally arranged, and in actual installation, the equilateral corner frames 3 are matched with corners of a wall and need to be vertically arranged, so that in the present invention, the structure of the product is described according to the actual assembly structure of the product, for example, the strip-shaped board surface 31 which is constructed as a vertical board surface.

It will be understood that for example the strip-shaped panel 31, the side thereof provided with the double-sided adhesive block 2 is generally referred to as the inner side, i.e. the lying side, and the side opposite the inner side is referred to as the outer side, which is also referred to as the decorative side, and that, in addition to the structure of the equilateral frame 3 itself, for example, a decorative layer may be provided.

In the art, it is known that the double-sided adhesive block 2 has a certain thickness, and the thickness of the common double-sided adhesive block 22 is about 3mm, so that there is a large enough operation space for the main support sheet 4.

In addition, the double-sided adhesive block 2 is not entirely an adhesive but has a rectangular sheet-like body, and adhesive layers are provided on both sides of the rectangular sheet-like body. The rectangular sheet-shaped body has certain rigidity, so that the main supporting sheet 4 has certain supporting rigidity, and relatively stable supporting capability is kept in the process of aligning the equilateral angle frame 3 at the corner of a wall, for example.

It should be noted that, as mentioned above, the thickness of the double-sided adhesive tape block 22 is about 3mm, and for the rectangular sheet-like body of the double-sided adhesive tape block 2, the thickness is often not less than 2mm, so as shown in fig. 4, the blind hole 22 certainly includes a portion on the rectangular sheet-like body, and thus has a certain rigidity. The rectangular sheet-like body is often made of a lightweight plastic, such as PET (polyethylene terephthalate), and has a certain strength.

Referring to the corner protector and the components thereof shown in the accompanying drawings 1 to 6 of the specification, the functional part of the corner protector is the equilateral angle frame 3 shown in the drawings, generally speaking, most of the functional parts of the corner protector for protecting the corner are in the shape of equilateral angles, non-equilateral structures can exist, and are only very few, and the description is given by taking the equilateral angle frame 3 as an example, and the corner protector is relatively representative. Corner frames of non-equilateral configuration are also similar.

The other part of the corner protector is used for the first part, namely the structural part for fixing the equilateral angle frame 3 on the wall corresponding to the corner, and mainly comprises a double-sided adhesive tape and a protective structure thereof.

Wherein the double faced adhesive tape generally possesses the gluey piece of certain thickness, as before, it often possesses aforementioned rectangle slice body, and its rectangle slice body is light plastics, possesses certain elasticity to facing the wall of unevenness, based on the extrusion, can realize pasting of great area, it is better to paste the fastness.

Further, in the embodiment of the present invention, the main support sheet 4 is configured based on the presence of the double-sided adhesive block 2.

It should be noted that although there is a rectangular sheet-like body, for example, the rectangular sheet-like body is usually used as a substrate of the double-sided tape, and therefore, the labeling related to the colloid 23 in fig. 4 does not affect the understanding of those skilled in the art.

Referring to the corner frame, by using the concept of equilateral angle steel, most corner frames are similar to the equilateral angle steel equilateral angle frame 3, Chinese people like symmetry, so that the corner protector usually has a substantially similar aesthetic point of view, and most corner protectors are also in an equilateral angle frame structure.

For the equilateral corner frame 3, which is produced by using, for example, an extrusion (plastic-type corner wall) process and then cut to a given length as required, the cutting direction is perpendicular to the length direction of the equilateral corner frame 3, i.e., the direction of the intersection line 32, in contrast to the strip-shaped

panels

31 and 33 shown in fig. 3, which are generally the same in size, in particular in length. The two strip panels are integrally formed, in other words, the extruded corner protectors are substantially in the form of equal angles, defining a line of intersection 32, the two strip panels being perpendicular to each other and corresponding to the corner.

Utilize the structural feature of the double faced adhesive tape piece 2 self that the revetment angle was configured, as before the double faced adhesive tape piece 2 has two glue films and a substrate layer usually, and the substrate layer possesses certain intensity, when the trompil above that, can possess certain bearing capacity, and unlike pure glue film, the atress probably will incline a little to can not resume by oneself.

One side glue film of the double-sided adhesive block 2 is attached to the corresponding attaching surface, and the other side glue film is used for attaching to the wall surface, and as the known double-sided adhesive block 2 used for the corner protector has very strong bonding capability, the corner protector shown in figure 1 can not be found accurately on the wall surface in a sliding manner after the wax paper 1 shown in figure 1 is removed.

The user who has used the corner protector shown in fig. 1 should know that even if the contact is touched slightly, the double-faced adhesive tape block 2 is tightly combined with the wall surface, and the wall surface may be stuck by moving the double-faced adhesive tape block.

The double-sided adhesive block 2 is generally arranged in a plurality of, generally not less than two, and generally not more than four, blocks on each inner face in the direction of the intersection line 32.

The surface of the double-faced adhesive tape block 2, which is far away from the attaching surface, is provided with an even number of blind holes 22 which are not less than four, six blind holes 22 are visible in fig. 4, the blind holes 22 are distributed on the double-faced adhesive tape block 2 in a row-column matrix manner, two columns and three rows are provided in the figure (taking the vertical direction as the reference direction), and the column direction is the vertical direction.

The hole opening is realized by adopting a blanking mode, and continuous production can be realized.

The blind hole 22 is a mounting hole for mounting the main support piece 4 shown in fig. 2, the cross section of the blind hole 22 is the same as that of the main support piece 4, and in addition, the end of the main support piece 4 facing the bottom of the hole may have a sharp end, so that when the double-faced adhesive tape block 2 and the wall surface are pressed together, the main support piece 4 is completely pressed into the double-faced adhesive tape block 2.

Therefore, the main supporting sheet 4 is corresponding to the blind holes 22 one by one, the main supporting sheet 4 is partially inserted into the blind holes 22 and supported at the bottom of the holes, and the partially inserted blind holes 22 represent the parts of the main supporting sheet 4 exposed out of the blind holes 22, in other words, the parts of the main supporting sheet 4 protruding out of the double-faced adhesive tape block 2, so that the parts of the main supporting sheet 4 protruding out of the double-faced adhesive tape block 2 can be supported on the wall surface during installation, and the double-faced adhesive tape block 2 is not adhered to the wall surface, thereby being beneficial to alignment.

Accordingly, the length of the main support sheet 4 in the normal direction of the corresponding attaching face is equal to or less than the thickness of the double-sided adhesive block 2, so that it can be completely pressed into the double-sided adhesive block 2.

It will be appreciated that the substrate within the double-sided adhesive block 2, although having some strength, is not so strong and is easily pressed through by the relatively thin main support sheet 4.

In the embodiment of the present invention, the wall of the blind hole 22 is mainly used for supporting the main support 4, so as to provide support for the main support 4 in the horizontal direction and the vertical direction under the sliding condition, and therefore, when the blind hole 22 is processed, the degree of punching through the substrate layer is limited, which is generally about 0.2 mm.

The stencil paper 1 shown in fig. 1 is a protective layer for protecting the double-sided adhesive layer 2, and the protective layer is used for coating wax on one side of the double-sided adhesive layer 2, and has a very weak bonding force with the adhesive layer, so that the stencil paper can be torn off relatively easily.

The name of the stencil paper 1 is not limited to the structure, and the stencil paper is formed by coating wax on the surface of a paper substrate under normal conditions. The protective layer is also formed by coating wax on the paper surface.

The side coated with wax is often referred to as the degummed side, which has a weaker affinity for the glue. Similarly, a substance with a weaker affinity to glue may be used instead of the stencil paper, and the use of a release surface based on the same concept is also within the scope of the present invention.

In the preferred embodiment, the length of the main supporting sheet 4 in the normal direction of the corresponding attaching surface is the same as the sum of the depth of the blind hole 22 on the double-sided adhesive block 2 and the thickness of the protective layer, and the part of the main supporting sheet 4 protruding out of the double-sided adhesive block 2 is just protected by the protective layer.

Correspondingly, the protective layer is provided with first through holes 11 corresponding to the blind holes 22, and in this structure, the parts of the main supporting sheet 4 protruding from the double-sided adhesive tape block 2 are just accommodated in the first through holes 11. In contrast, for example, a wax paper, which has a thickness of about 0.2 mm, in other words, a relatively small portion of the main support 4 protruding from the blind hole 22, can be pressed into the double-sided adhesive block 2 with a relatively small force.

In some embodiments, the depth of the blind hole 22 is greater than or equal to one-half of the thickness of the double-sided adhesive tape block and not greater than seven-eighth of the thickness of the double-sided adhesive tape block. As described above, if the depth of the opening in the base material layer is small, the pressing-in of the main support 4 is affected by the presence of the base material layer, and therefore, the base material layer should be at least broken, and if the breakage occurs, the mutual connection of the fibers inside the base material layer is broken, which is advantageous for the pressing-in of the main support 4.

The blind hole 22 should not be drilled too deep, and after all, a certain supporting force is required to be applied to the normal direction of the contact surface of the blind hole 22.

Accordingly, when the double-sided adhesive tape block 2 is a rectangular block, the length of the side in the vertical direction is longer than that in the horizontal direction, and the long side is a vertical side.

The blind holes 22 are divided into two vertical rows and are offset inside the respective vertical edges. In the machine, the inner and outer portions are defined as the portions bounded by the outline, and the portions outside the outline are defined as the inner portions, in fig. 4.

The blind holes 22 are offset to the side as far as possible, and can still have good supporting capacity (the blind holes 22 correspond to the main support 4) under the condition that the number of the blind holes 22 is relatively small, but cannot be offset too much, otherwise the clamping capacity of the blind holes 22 on the main support 4 can be influenced, and the blind holes 22 are correspondingly arranged, and the distance between the vertical columns of the blind holes 22 and the corresponding vertical sides is not less than 5mm and not more than 8 mm.

As for the hole pattern of the blind hole 22, a circular hole may be adopted, and a rectangular hole or a polygonal hole may also be adopted, and taking a circular hole as an example, the circular hole has an isotropic characteristic for supporting the main support 4. In some embodiments, a strip-shaped blind hole is used, and the support of the strip-shaped blind hole is anisotropic, and accordingly, as shown in fig. 4, the width of the blind hole 22 is 1-2 mm, the length thereof is 5-10 mm, and the width and the length thereof are positively correlated.

In fig. 4, it can be seen that through holes 21 are formed in the double-sided adhesive tape block 2 and are offset from the blind holes 22, and at least three through holes 21 are formed, but not more than five through holes are formed.

Accordingly, the stencil sheet 1 type protective layer shown in fig. 5 is provided with the second through holes 12 corresponding to the through holes 21, and the second through holes 12 are close to the blind holes 22 and also close to the side, in other words, when the distribution area of the sub-supporting bodies 51 shown in fig. 6 is large, the overall supporting stability can be improved.

In fig. 6, a protection plate 5 is provided, and for the conventional corner protector, it is not necessary to provide the protection plate 5, in that there is no main support piece 4, and there is no fear that the main support piece 4 is deflected by an external force to lose its supporting function.

The protection plate has a plate body 52 attached to the protection layer, the plate body 52 is made of hard plastic, such as PP, PVC, etc., and the surface of the plate body 52 facing the attachment surface is provided with the auxiliary support sheets 51 aligned in the same number as the number of the through holes 21, so that the auxiliary support sheets 51 are supported on the corresponding attachment surface through the aligned second through holes 12 and the aligned through holes 21, thereby forming a reliable support for protecting the main support sheet 4 from deflection.

Preferably, the secondary support plate 51 is a rectangular sheet structure, and is integrated with the plate body 52, and can be integrally formed in an injection molding manner, so that the cost is low, and the cost of the corner protector is not obviously increased.

In the preferred embodiment, the secondary support sheet 51 is parallel to the primary support sheet 4 and is located inside the primary support sheet 4.

The double faced adhesive tape piece 2 should not be too much, has two reliable assemblies that can satisfy the revetment angle on general each laminating face, and double faced adhesive tape piece 2 is too much, easily produces and looks for the obstacle, lies in the adhesion force that veneer and wall produced, is difficult to remove the revetment angle and looks for accurately. When one sticking surface is provided with two double-sided adhesive blocks 2, the two double-sided adhesive blocks 2 are respectively arranged at the upper end and the lower end of the sticking surface.

Claims

1. A corner protector, comprising:

2. The corner protector of claim 1, wherein the length of the main support sheet in the normal direction of the corresponding mounting surface is the same as the sum of the depth of the blind hole in the double-sided adhesive block and the thickness of the protective layer;

3. The corner guard according to claim 1 or 2, wherein the depth of the blind hole is greater than or equal to one half of the thickness of the double-sided adhesive tape block and not greater than seven eighths of the thickness of the double-sided adhesive tape block.

4. The corner guard according to claim 1, wherein the double-faced adhesive tape block is a rectangular block, and the edge of the double-faced adhesive tape block parallel to the long edge is a vertical edge;

5. A corner protector according to claim 4 wherein the vertical rows of blind holes are spaced from the respective vertical edges by a distance of not less than 5mm and not more than 8 mm.

6. The corner guard according to claim 5, wherein the blind holes are strip-shaped blind holes, the width of the blind holes is 1-2 mm, the length of the blind holes is 5-10 mm, and the width and the length are positively correlated.

7. The corner protector according to claim 1, wherein the double-faced adhesive tape block is further provided with through holes staggered with the blind holes, and the number of the through holes is at least three but not more than five;

8. The corner guard of claim 7, wherein the secondary support tab is of rectangular sheet construction and is integral with the panel.

9. The corner guard of claim 7, wherein the secondary support sheet is parallel to and located inside the primary support sheet.

10. A corner protector according to claim 1, wherein two blocks of double-faced adhesive are provided on each of the facing surfaces and located at the upper and lower ends of the facing surface.