Positioning film structure capable of conveniently updating layout of traffic sign board

Abstract

The utility model discloses a positioning film structure convenient to update traffic sign board layout, which comprises a front frame shell, a rear frame shell, a traffic sign composite film and a moisture-proof outer package, the front frame shell and the rear frame shell are arranged separately or integrally, and the traffic sign composite film at least comprises an aluminized base film, a bottom color base film, an information word film and a reflective film which are arranged in sequence. The front frame shell is provided with a front annular groove, the rear frame shell is provided with a rear annular groove, the inner annular edge of the front annular groove and the inner annular edge of the rear annular groove are smaller than the outer edge of a traffic sign to be updated but larger than the outer edge of the traffic sign to be updated, uncured silicone rubber rings are preassembled in the front annular groove and the rear annular groove, and the front annular groove and the rear annular groove are each provided with a plurality of small permeable holes. The peripheral size of the traffic sign composite film is larger than the inner ring edge of the front ring groove but smaller than the outer ring edge of the front ring groove, the edge of the traffic sign composite film is adhered or covered by the silicone rubber ring in the front ring groove, the traffic sign composite film is preassembled and fixed to the rear side face of the front frame shell, and the traffic sign composite film and the front frame shell are arranged in a separable mode. The moisture-proof outer package at least completely isolates the silicone rubber ring from the external environment.

Description

Technical Field

[0001] This utility model relates to the field of film application technology, specifically to a positioning film structure that facilitates the updating of traffic sign panels. Background Technology

[0002] Traffic signs generally use graphic symbols and text to convey specific information, managing traffic, indicating driving directions, and ensuring smooth traffic flow and driving safety. High-grade traffic signs on main roads and highways must follow a formal replacement process, typically involving the complete removal and replacement of the entire sign, which is a significant undertaking. However, some lower-grade traffic signs (such as parking lot signs) do not have very strict national replacement standards. Sometimes the sign itself is intact, but the displayed information has become detached or needs updating. In such cases, replacing the entire sign according to national standards would be relatively costly in terms of time, price, and labor.

[0003] To address the aforementioned issues and reduce the cost of updating traffic signs, patent document CN 221650661 U discloses a backlit, opaque reflective film and a road sign. The reflective film includes a microprism reflective layer and a pressure-sensitive adhesive layer. The microprism reflective layer is adhered to one side of the pressure-sensitive adhesive layer. The reflective film also includes a PET film layer and a pressure-sensitive adhesive layer. Both opposite surfaces of the PET film layer are coated with an aluminum-plated film layer. The aluminum-plated film layer on one side of the PET film layer is bonded to the other side of the pressure-sensitive adhesive layer. The aluminum-plated film layer on the other side of the PET film layer is bonded to the pressure-sensitive adhesive layer. The reflective film has a through-hole area for displaying patterns and markings on the reflective layer of the base film.

[0004] The aforementioned prior art effectively reflects the backlight source through film layer design, thereby preventing it from passing through the PET substrate and the microprism reflective layer on the surface, effectively blocking the backlight source from the back, making the marking clearer.

[0005] However, one of the main reasons why most existing traffic signs do not tend to be updated with film is that after the film is pasted on the traffic sign, its edges are prone to curling up as the pasting time increases, which makes it easy for dust and water to accumulate and accelerate aging. The existing technology mentioned above has not solved this problem and there is room for improvement.

[0006] On the other hand, in order to ensure that the adhesive backing of the film can be firmly adhered to the sign surface, the current method of updating signs by film application requires the removal of the original reflective film, residual adhesive, etc. on the traffic signs using high-pressure water guns and organic solvents. However, traffic signs are generally installed in areas with high traffic flow and at a high position. This process of updating the signs is relatively time-consuming, which reduces the advantage of film application in terms of high-efficiency updating and may also have an adverse impact on road traffic.

[0007] The present invention aims to provide a structural component for facilitating the updating of traffic sign panels, thereby reducing the operation time and mitigating the adverse effects of updating traffic signs on traffic. Summary of the Invention

[0008] In view of the problems in the related technologies, this utility model proposes a positioning film structure that facilitates the updating of traffic sign panels, so as to overcome the above-mentioned technical problems existing in the existing related technologies.

[0009] The technical solution of this utility model is implemented as follows:

[0010] A positioning membrane structure for facilitating the updating of traffic sign panels includes a front frame shell, a rear frame shell, and a traffic sign composite film, wherein the front and rear frame shells are either separate or integrated.

[0011] The traffic sign composite film includes at least an aluminum-plated base film, a base film (usually blue, white, yellow, or red), an information letter film (usually traffic information, construction information, parking lot indication, toll information, directional arrows, border lines, etc.) arranged in sequence, and a reflective film, with an adhesive layer bonding the films together.

[0012] The front frame has a front ring groove, and the rear frame has a rear ring groove. The inner ring edges of the front and rear ring grooves are smaller than the outer edge of the traffic sign to be updated, and the outer ring edges of the front and rear ring grooves are larger than the outer edge of the traffic sign.

[0013] Uncured silicone sealant rings are pre-installed in the front and rear annular grooves. Both the front and rear annular grooves are provided with several permeable holes that penetrate through them. The diameter of the permeable holes is set so that the silicone sealant cannot pass through. The diameter of the permeable holes is set as r, where 0.1mm ≤ r ≤ 1mm.

[0014] The outer dimensions of the traffic sign composite film are larger than the inner ring edge of the front ring groove and smaller than the outer ring edge of the front ring groove. The edge of the traffic sign composite film is adhered or covered by the silicone ring in the front ring groove. Thus, the traffic sign composite film is pre-installed and fixed to the rear side of the front frame shell. The traffic sign composite film and the front frame shell can be separated.

[0015] It also includes a waterproof and vapor-proof outer packaging, which at least completely isolates the silicone ring from the external environment to prevent the silicone ring from absorbing moisture and curing on its own before use.

[0016] During installation, the waterproof outer packaging (usually a waterproof sealed bag) is opened. The front and rear frame shells are placed on the front and rear sides of the traffic sign to be replaced. The front and rear ring grooves are aligned with the outer edge of the traffic sign and clamped together. The pre-installed uncured silicone sealant rings (commonly known as glass glue) are in a soft paste state that will not flow due to their own weight. When external force is applied, they can conform to the shape of the traffic sign edge and gradually cure by absorbing moisture from the air. The front and rear frame shells are removed. The cured silicone sealant rings clamp the traffic sign composite film to the surface of the traffic sign that needs to be replaced, and hide the edge of the traffic sign composite film inside, avoiding problems such as curling of the edge of the traffic sign composite film as the adhesion time increases, thus extending the service life of the traffic sign composite film. At the same time, the silicone sealant itself has good weather resistance and is not easy to fall off.

[0017] On the other hand, as can be seen from the above, this utility model makes updating traffic signs more convenient and faster than current technologies. Since the traffic sign composite film and silicone rings are pre-installed, and the traffic sign composite film is mainly fixed by the silicone rings, staff do not need to deal with the original reflective film, glue, etc. on the traffic signs after arriving on site. They only need to wait for the silicone rings to absorb moisture and harden slightly through the water-permeable holes before removing the front and rear frames. This has almost no adverse impact on road traffic. At the same time, this utility model can also update the layout of traffic signs with slight unevenness without affecting the display of traffic information, making it more widely applicable.

[0018] Finally, the edges of the traffic sign composite film are concealed inside the silicone sealant, which can reduce the requirements for the dimensional accuracy of the traffic sign composite film and the operational accuracy requirements during application.

[0019] Since the applicant's main sales area is in the humid south, which has a natural environment conducive to the moisture absorption and curing of silicone sealant, it is particularly suitable to use silicone sealant for fixing traffic sign composite films. Of course, for the drier north, after installing this utility model, workers can spray water mist to promote the curing of the silicone sealant ring, which is essentially more convenient than the existing technology.

[0020] Preferably, the present invention further includes a flexible metal reinforcing grille, which is adhered to the rear side of the aluminized base film to form the rear composite structure of the traffic sign composite film. The addition of the metal reinforcing grille can improve the structural mechanical strength of the traffic sign composite film, and at the same time, it has a shaping effect on the traffic sign composite film to facilitate pre-assembly to the front frame on the production line.

[0021] One size design option is that the outer edge of the metal reinforcing grille is flush with the outer edge of the traffic sign composite film. Because the size is uniform, it is more convenient to design the material cutting and bonding process.

[0022] Another size design option is that the outer edge of the metal reinforcing grille is larger than the outer edge of the traffic sign composite film, but smaller than the outer ring edge of the front ring groove. The outer edge of the metal reinforcing grille is adhered to or covered by the silicone ring in the front ring groove. The advantage of this size option is that it provides more specific surface area structure for the silicone ring to be adhered, and the stability of the traffic sign composite film is improved to a certain extent.

[0023] Uncured silicone sealant is a sticky, ointment-like substance. In actual production, the silicone sealant can be injected into the front ring groove first, and then the traffic sign composite film and / or metal reinforcing grid can be placed. In this case, the edges of the traffic sign composite film and / or metal reinforcing grid are adhered to the silicone sealant ring in the front ring groove. Alternatively, a portion of the silicone sealant can be injected into the front ring groove first, then the traffic sign composite film and / or metal reinforcing grid can be placed, and then the remaining silicone sealant can be injected into the front ring groove. In this case, the edges of the traffic sign composite film and / or metal reinforcing grid are covered by the silicone sealant ring in the front ring groove.

[0024] Preferably, the outer ring edge of the front annular groove extends outward to form a first outer side beam, and the inner ring edge of the front annular groove extends outward to form a first inner side beam.

[0025] The outer ring edge of the rear annular groove extends outward to form a second outer side beam, and the inner ring edge of the rear annular groove extends outward to form a second inner side beam.

[0026] To ensure the aesthetic appearance of the cured silicone sealant edges, this invention also adds inner and outer edge beams. Even if the silicone sealant ring deforms with the edge shape of the traffic sign during installation and is squeezed and slightly overflows from the front and rear annular grooves, the silicone sealant will be smoothly laid under the guidance of the inner and outer edge beams, forming a natural and smooth edge.

[0027] The front and rear frame shells are flexible shells that can be elastically deformed, such as thin rubber shells or thin plastic shells. Considering that this utility model is mostly used as a disposable product in actual use, the front and rear frame shells are transparent thin blister shells in actual production. This is because the cost is low and the process can easily support the deformation function of the front and rear frame shells.

[0028] The front and rear frames are integrated using a vacuum forming process. Part of the edges of the first and second outer beams are connected, forming a connecting edge. This integrated structure makes transportation and installation easier and also reduces the difficulty of aligning the front and rear frames during installation.

[0029] If the support column of the traffic sign is connected to the bottom of the sign body, then both the front and rear frames can be closed ring structures.

[0030] However, considering that a large number of traffic signs are fixed to the support columns by rivets on the back, but the back edge of the traffic sign does not contact the support column, therefore, preferably, the front frame is a closed ring structure and the rear frame is a non-closed ring structure with an opening.

[0031] The opening of the rear frame shell is located away from the connecting edge to facilitate deformation. The frame edges on both sides of the opening of the rear frame shell can be subjected to force to cause elastic deformation and thus move away from each other, increasing the width of the opening. The rear frame shell can then pass through the support column located behind the sign body through the opening structure and return to its original shape to fit against the front frame shell.

[0032] Essentially, the front and rear frames of this utility model can be easily fixed with tape after alignment. However, in order to further reduce the difficulty of construction, the first and second outer beams of this application are respectively equipped with matching molded interlocking buckles. Workers do not need to perform additional operations such as cutting tape. After aligning the front and rear frames with the traffic sign, they can lock them by pressing the molded interlocking buckles. It is also convenient to unlock them after the silicone sealant has slightly cured.

[0033] The inner edge of the front annular groove extends toward its center and tilts backward to form the first inner side beam. The inner edge of the rear annular groove extends toward its center and tilts forward. The inner edges of both the front and rear annular grooves are shorter than the outer edges.

[0034] By applying force to engage the molded interlocking buckle, the first inner beam and the second inner beam deform under force and adhere to the front and rear outer surfaces of the traffic sign, assisting in pressing the traffic sign composite film and silicone sealant. The silicone sealant rings in the front and rear annular grooves are squeezed and deformed, and their upper parts connect and fuse together. Then, after the silicone sealant rings in the front and rear annular grooves absorb water and solidify, they form an approximately inverted U-shaped structure to surround the outer edge of the traffic sign, and the traffic sign composite film is then fixed to the outer surface of the traffic sign.

[0035] More preferably, the molded interlocking buckle includes a plurality of compatible and position-corresponding first and second forward protrusions;

[0036] The first forward protrusion is formed by the forward indentation of the first outer beam and is integrally formed with the edge of the first outer beam. The second forward protrusion is formed by the forward indentation of the second outer beam and is integrally formed with the second outer beam. The second forward protrusion is locked in the rear recess of the first forward protrusion. Locking or unlocking is simple and quick. The molding interlocking buckle can be formed together in the vacuum forming process.

[0037] Preferably, the front and rear annular grooves are lined with a water-permeable starch film or glutinous rice paper, and the silicone rubber ring is injected into the side of the water-permeable starch film or glutinous rice paper that does not contact the front and rear annular grooves.

[0038] Essentially, once the silicone sealant has slightly cured, the front and rear frames can be forcefully removed. However, by adding the water-permeable starch film or glutinous rice paper to isolate the silicone sealant, the front and rear frames can be easily and smoothly removed without damaging the surface morphology of the silicone sealant. The water-permeable starch film or glutinous rice paper is fragile and permeable to water, and is very easily degraded or damaged in the natural environment, without affecting the subsequent curing of the silicone sealant ring.

[0039] Preferably, the traffic sign composite film has several through holes near its outer edge, and these through holes are located in the groove direction of the front annular groove, allowing silicone sealant in the front and rear annular grooves to pass through, thereby further improving the installation stability of the traffic sign composite film.

[0040] Preferably, the thickness of the aluminum-plated substrate film is 50–100 μm.

[0041] Preferably, the reflective film is a glass bead reflective film or a microprism reflective film to meet the requirements for nighttime reflection; the surface of the reflective film is coated with a high-transmittance UV-resistant coating with a thickness of ≤20μm to improve the weather resistance and scratch resistance of this invention. Attached Figure Description

[0042] Figure 1 This is one of the structural schematic diagrams of Embodiment 1 of this utility model (front view);

[0043] Figure 2 This is a second structural schematic diagram of Embodiment 1 of the present invention (rear view).

[0044] Figure 3 for Figure 2 Enlarged view of point A;

[0045] Figure 4 This is a schematic diagram of the structural combination of the traffic sign composite film and the metal reinforcing grille of this utility model;

[0046] Figure 5 This is an exploded view of the structure of this utility model;

[0047] Figure 6 This is a schematic diagram of the front frame shell of this utility model;

[0048] Figure 7 This is a schematic diagram of the rear frame shell of Embodiment 1 of this utility model;

[0049] Figure 8 This is a schematic diagram showing the positions of various materials during the installation of this utility model;

[0050] Figure 9 This is a schematic diagram of the structure of Embodiment 2 of this utility model;

[0051] Figure 10This is a schematic diagram of the structural combination of silicone rubber ring, traffic sign composite film and metal reinforcing grid in Embodiment 2 of this utility model.

[0052] Marker explanation:

[0053] 1. Front frame shell; 101. Front ring groove; 102. First outer side beam; 103. First inner side beam; 104. First front protrusion;

[0054] 2. Rear frame shell; 201. Rear ring groove; 202. Second outer side beam; 203. Second inner side beam; 204. Second front protrusion; 205. Opening;

[0055] 3. Water-permeable starch film;

[0056] 4. Silicone rubber ring;

[0057] 5. Traffic sign composite film; 501. Reflective film; 502. Information letter film; 503. Base color film; 504. Aluminized base film; 505. Through-hole film;

[0058] 6. Metal reinforced grille;

[0059] 7. Permeable holes;

[0060] 8. Traffic signs. Detailed Implementation

[0061] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0062] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0063] Example 1

[0064] like Figures 1 to 8As shown, a positioning film structure for facilitating the updating of traffic sign panels includes a front frame shell 1, a rear frame shell 2, and a traffic sign composite film 5, with the front and rear frame shells being integrally formed.

[0065] The traffic sign composite film 5 includes an aluminum-plated base film 504, a base color film 503 (generally blue, white, yellow or red), an information letter film 502 (generally traffic information, construction information, parking lot indication, toll information, directional arrows, border lines, etc.) arranged in sequence, and a reflective film 501. The films are bonded together with an adhesive layer.

[0066] The front frame 1 has a front ring groove 101, and the rear frame 2 has a rear ring groove 201. The inner ring edges of the front and rear ring grooves are smaller than the outer edge of the traffic sign 8 to be updated, and the outer ring edges of the front and rear ring grooves are larger than the outer edge of the traffic sign 8.

[0067] Uncured silicone rubber rings 4 are pre-installed in the front and rear annular grooves. In this embodiment, a water-permeable starch film 3 is also placed in the front and rear annular grooves. The silicone rubber rings 4 are injected into the side of the water-permeable starch film 3 that does not contact the front and rear annular grooves. The water-permeable starch film 3 isolates the silicone rubber, making it easy to remove the front and rear frame shells. The water-permeable starch film 3 is fragile and permeable to water, and is very easy to degrade or be damaged in the natural environment, without affecting the subsequent curing of the silicone rubber rings 4.

[0068] Both the front and rear annular grooves are provided with multiple permeable holes 7 that penetrate through them; the diameter of some of the permeable holes 7 is set so that silicone sealant cannot pass through. Specifically, the diameter of the permeable holes 7 is set to r, where 0.1mm ≤ r ≤ 1mm.

[0069] The outer dimensions of the traffic sign composite film 5 are larger than the inner ring edge of the front ring groove 101 and smaller than the outer ring edge of the front ring groove 101. The edge of the traffic sign composite film 5 is adhered by the silicone ring 4 in the front ring groove 101. Thus, the traffic sign composite film 5 is pre-installed and fixed to the rear side of the front frame shell 1. The traffic sign composite film 5 and the front frame shell 1 can be separated.

[0070] It also includes a waterproof and vapor-proof outer packaging (in this embodiment, it is a waterproof sealed bag, not shown in the attached figure). The waterproof and vapor-proof outer packaging completely isolates the silicone ring 4 from the external environment, preventing the silicone ring 4 from absorbing moisture and curing on its own before use in this embodiment.

[0071] This embodiment also includes a flexible metal reinforcing grille 6 (silver grille), which is attached to the rear side of the aluminized base film 504 to form the rear composite structure of the traffic sign composite film 5. The addition of the metal reinforcing grille 6 can improve the structural mechanical strength of the traffic sign composite film 5, and at the same time, it has a shaping effect on the traffic sign composite film 5 to facilitate pre-assembly to the front frame shell 1 on the production line.

[0072] Reference Figure 4 In this embodiment, the outer edge of the metal reinforcing grille 6 is larger than the outer edge of the traffic sign composite film 5 and smaller than the outer ring edge of the front ring groove 101. The outer edge of the metal reinforcing grille 6 is adhered to the silicone ring 4 in the front ring groove 101. The advantage of this size scheme is that, compared with embodiment 2, it provides more specific surface area structure for the silicone ring 4 to be adhered, and the stability of the traffic sign composite film 5 is improved to a certain extent.

[0073] Reference Figure 3 Uncured silicone sealant is in the form of a sticky ointment. In actual production, the silicone sealant is first injected into the front ring groove 101, and then the traffic sign composite film 5 and the metal reinforcing grid 6 are placed. Subsequently, the edges of the traffic sign composite film 5 and the metal reinforcing grid 6 are adhered to the silicone sealant ring 4 in the front ring groove 101.

[0074] In this embodiment, the outer ring edge of the front annular groove 101 extends outward to form a first outer side beam 102, and the inner ring edge of the front annular groove 101 extends outward to form a first inner side beam 103.

[0075] The outer ring edge of the rear ring groove 201 extends outward to form a second outer side beam 202, and the inner ring edge of the rear ring groove 201 extends outward to form a second inner side beam 203.

[0076] To ensure the aesthetic appearance of the cured silicone sealant edges, this embodiment also adds inner and outer edge beams. Even if the silicone sealant ring 4 deforms with the edge shape of the traffic sign 8 during installation and is squeezed and slightly overflows from the front and rear annular grooves, the silicone sealant will be laid flat under the guidance of the inner and outer edge beams, forming a natural and flat edge.

[0077] The front frame shell 1 and the rear frame shell 2 are flexible shells that can be elastically deformed, such as thin plastic shells, thin plastic shells, etc. Considering that this embodiment is mostly used as a disposable product in actual use, the front and rear frame shells are transparent thin blister shells in this embodiment, which have lower costs and can be easily supported in terms of process to support the deformation function of the front and rear frame shells.

[0078] The front and rear frames are integrated using a vacuum forming process. The edges of the first outer beam 102 and the second outer beam are connected and set as connecting edges. The integrated structure is more convenient for transportation and installation, and also reduces the difficulty of aligning the front and rear frames during installation.

[0079] Considering that a large number of traffic signs 8 are fixed to the support columns by rivets on the back, but the back edge of the traffic sign 8 does not contact the support column, it does not affect the edge adhesion of the silicone sealant in this embodiment. Therefore, in this embodiment, the front frame shell 1 is a closed annular structure, and the rear frame shell 2 is a non-closed annular structure with an opening 205.

[0080] The opening 205 of the rear frame shell 2 is located away from the connecting edge to facilitate deformation. The frame edges on both sides of the opening 205 of the rear frame shell 2 can be subjected to force to cause elastic deformation and thus move away from each other. The width of the opening 205 increases, and the rear frame shell 2 can pass through the support column located behind the card body through the opening 205 structure, and then return to its original shape to fit and stick to the front frame shell 1.

[0081] Essentially, the front and rear frames can be easily fixed with tape after alignment. However, to further reduce construction difficulty, the first outer beam 102 and the second outer beam 202 in this embodiment are respectively equipped with matching molded interlocking buckles. Workers do not need to perform additional operations such as cutting tape. After aligning the front and rear frames with the traffic sign 8, they can lock them by pressing the molded interlocking buckles. Unlocking is also convenient after the silicone sealant has slightly cured.

[0082] Specifically, the molded interlocking buckle includes several compatible and corresponding first front protrusions 104 and second front protrusions 204;

[0083] The first forward protrusion 104 is formed by the forward recess of the first outer beam 102 and is integrally formed with the edge of the first outer beam. The second forward protrusion 204 is formed by the forward recess of the second outer beam 202 and is integrally formed with the second outer beam 202. The second forward protrusion 204 is locked in the rear recess of the first forward protrusion 104. Locking or unlocking is simple and quick. The molding interlocking buckle can be formed together in the vacuum forming process.

[0084] In this embodiment, the inner ring edge of the front annular groove 101 extends toward its center and tilts backward to form the first inner side beam 103, and the inner ring edge of the rear annular groove 201 extends toward its center and tilts forward. The inner ring edges of both the front and rear annular grooves are shorter than the outer ring edges.

[0085] Reference Figure 8 By applying force to engage the molded interlocking buckle, the first inner beam 103 and the second inner beam are deformed and adhere to the front and rear outer surfaces of the traffic sign 8, thus assisting in pressing the traffic sign composite film 5 and silicone sealant. The silicone sealant rings 4 in the front annular groove 101 and the rear annular groove 201 are squeezed and deformed, and their upper parts are connected and fused together. Then, after the silicone sealant rings 4 in the front and rear annular grooves absorb water and solidify, they form an approximately inverted U-shaped structure to surround the outer edge of the traffic sign 8. The traffic sign composite film 5 is then fixed to the outer surface of the traffic sign 8.

[0086] Reference Figure 4 In this embodiment, the traffic sign composite film 5 is provided with a plurality of through holes 505 near its outer edge. The plurality of through holes 505 are provided in the groove direction of the front annular groove 101, allowing silicone sealant in the front and rear annular grooves to pass through, thereby further improving the installation stability of the traffic sign composite film 5.

[0087] In this embodiment, the thickness of the aluminum-plated substrate film 504 is 60 μm.

[0088] In this embodiment, the reflective film 501 is a microprism reflective film 501, which meets the requirements for nighttime reflection; the surface of the reflective film 501 is coated with a high-transmittance UV-resistant coating with a thickness of 15μm, which improves the weather resistance and scratch resistance of this embodiment.

[0089] During installation in this embodiment, open the waterproof outer packaging (waterproof sealed bag), place the front and rear frame shells on the front and rear sides of the traffic sign 8 to be replaced, align the front and rear annular grooves with the outer edge of the traffic sign 8, and apply force to fasten the interlocking buckles. After the silicone ring 4 absorbs moisture and slightly cures through the permeable holes 7, remove the front and rear frame shells. At this time, the traffic sign composite film 5 adheres to the traffic sign 8 along with the silicone ring 4. The cured silicone ring 4 stably clamps the traffic sign composite film 5 to the surface of the traffic sign 8 that needs to be replaced, and hides the edges of the traffic sign composite film 5 inside, avoiding problems such as curling of the edges of the traffic sign composite film 5 as the adhesion time increases, thus extending the service life of the traffic sign composite film 5. At the same time, the silicone itself has good weather resistance and is not easy to fall off.

[0090] Example 2

[0091] like Figure 5 , Figure 6 , Figures 8 to 10 As shown, a positioning film structure for facilitating the updating of traffic sign panels includes a front frame shell 1, a rear frame shell 2, and a traffic sign composite film 5, with the front and rear frame shells being separate components.

[0092] The traffic sign composite film 5 includes an aluminum-plated base film 504, a base color film 503 (generally blue, white, yellow or red), an information letter film 502 (generally traffic information, construction information, parking lot indication, toll information, directional arrows, border lines, etc.) arranged in sequence, and a reflective film 501. The films are bonded together with an adhesive layer.

[0093] The front frame 1 has a front ring groove 101, and the rear frame 2 has a rear ring groove 201. The inner ring edges of the front and rear ring grooves are smaller than the outer edge of the traffic sign 8 to be updated, and the outer ring edges of the front and rear ring grooves are larger than the outer edge of the traffic sign 8.

[0094] Uncured silicone rings 4 are pre-installed in the front and rear annular grooves. In this embodiment, glutinous rice paper is placed in the front and rear annular grooves. The silicone rings 4 are injected on the side of the glutinous rice paper that does not contact the front and rear annular grooves. The glutinous rice paper isolates the silicone sealant, making it easy to remove the front and rear frame shells. The glutinous rice paper is fragile and permeable to water, and is very easy to degrade or be damaged in the natural environment, without affecting the subsequent curing of the silicone rings 4.

[0095] Both the front and rear annular grooves are provided with multiple permeable holes 7 that penetrate through them; the diameter of some of the permeable holes 7 is set so that silicone sealant cannot pass through. Specifically, the diameter of the permeable holes 7 is set to r, where 0.1mm ≤ r ≤ 1mm.

[0096] The outer dimension of the traffic sign composite film 5 is larger than the inner ring edge of the front ring groove 101 and smaller than the outer ring edge of the front ring groove 101. The edge of the traffic sign composite film 5 is covered by the silicone ring 4 in the front ring groove 101. Thus, the traffic sign composite film 5 is pre-installed and fixed to the rear side of the front frame shell 1. The traffic sign composite film 5 and the front frame shell 1 can be separated.

[0097] It also includes a waterproof and vapor-proof outer packaging (not shown in the attached figure), which at least completely isolates the silicone ring 4 from the external environment to prevent the silicone ring 4 from absorbing moisture and curing on its own before use in this embodiment.

[0098] This embodiment also includes a flexible metal reinforcing grille 6 (silver grille), which is attached to the rear side of the aluminized base film 504 to form the rear composite structure of the traffic sign composite film 5. The addition of the metal reinforcing grille 6 can improve the structural mechanical strength of the traffic sign composite film 5, and at the same time, it has a shaping effect on the traffic sign composite film 5 to facilitate pre-assembly to the front frame shell 1 on the production line.

[0099] In this embodiment, the outer edge of the metal reinforced grille 6 is flush with the outer edge of the traffic sign composite film 5. The advantage of this size design is that, compared with embodiment 1, the uniform size makes it more convenient to design the cutting and bonding process steps.

[0100] Reference Figure 10 Uncured silicone sealant is in a sticky, ointment-like state. In actual production, a portion of silicone sealant is first injected into the front ring groove 101, then the traffic sign composite film 5 and the metal reinforcing grid 6 are placed, and then the remaining silicone sealant is injected into the front ring groove 101. As a result, the edges of the traffic sign composite film 5 and the metal reinforcing grid 6 are covered by the silicone sealant ring 4 in the front ring groove 101.

[0101] In this embodiment, the outer ring edge of the front annular groove 101 extends outward to form a first outer side beam 102, and the inner ring edge of the front annular groove 101 extends outward to form a first inner side beam 103.

[0102] The outer ring edge of the rear ring groove 201 extends outward to form a second outer side beam 202, and the inner ring edge of the rear ring groove 201 extends outward to form a second inner side beam 203.

[0103] To ensure the aesthetic appearance of the cured silicone sealant edges, this embodiment also adds inner and outer edge beams. Even if the silicone sealant ring 4 deforms with the edge shape of the traffic sign 8 during installation and is squeezed and slightly overflows from the front and rear annular grooves, the silicone sealant will be laid flat under the guidance of the inner and outer edge beams, forming a natural and flat edge.

[0104] The front frame shell 1 and the rear frame shell 2 are flexible shells that can be elastically deformed, such as thin plastic shells, thin plastic shells, etc. Considering that this embodiment is mostly used as a disposable product in actual use, the front and rear frame shells are integrated by vacuum forming process in this embodiment. The front and rear frame shells are transparent thin vacuum forming shells, which have low cost and can support the deformation function of the front and rear frame shells in a relatively convenient process.

[0105] Some traffic sign 8 has a support column connected to the bottom of the sign body. The front and rear sides of the traffic sign 8 are unobstructed. Therefore, the front and rear frames of this embodiment can both be closed ring structures.

[0106] Essentially, the front and rear frames of this embodiment can be easily fixed with tape after alignment. However, in order to further reduce the difficulty of construction, the first outer beam 102 and the second outer beam 202 of this embodiment are respectively equipped with matching molded interlocking buckles. Workers do not need to perform additional operations such as cutting tape. After aligning the front and rear frames with the traffic sign 8, they can lock them by pressing the molded interlocking buckles. It is also convenient to unlock them after the silicone sealant has slightly cured.

[0107] Specifically, the molded interlocking buckle includes several compatible and corresponding first front protrusions 104 and second front protrusions 204.

[0108] The first forward protrusion 104 is formed by the forward recess of the first outer beam 102 and is integrally formed with the edge of the first outer beam. The second forward protrusion 204 is formed by the forward recess of the second outer beam 202 and is integrally formed with the second outer beam 202. The second forward protrusion 204 is locked in the rear recess of the first forward protrusion 104. Locking or unlocking is simple and quick. The molding interlocking buckle can be formed together in the vacuum forming process.

[0109] In this embodiment, the inner ring edge of the front annular groove 101 extends toward its center and tilts backward to form the first inner side beam 103, and the inner ring edge of the rear annular groove 201 extends toward its center and tilts forward. The inner ring edges of both the front and rear annular grooves are shorter than the outer ring edges.

[0110] By applying force to engage the molded interlocking buckle, the first inner beam 103 and the second inner beam are deformed and adhere to the front and rear outer surfaces of the traffic sign 8, thus assisting in pressing the traffic sign composite film 5 and silicone sealant. The silicone sealant rings 4 in the front annular groove 101 and the rear annular groove 201 are squeezed and deformed, and their upper parts are connected and fused together. Then, after the silicone sealant rings 4 in the front and rear annular grooves absorb water and solidify, they form an approximately inverted U-shaped structure to surround the outer edge of the traffic sign 8, and the traffic sign composite film 5 is thus fixed to the outer surface of the traffic sign 8.

[0111] In this embodiment, the traffic sign composite film 5 is provided with several through holes near its outer edge. These through holes are located in the groove direction of the front annular groove 101, allowing silicone sealant in the front and rear annular grooves to pass through, thereby further improving the installation stability of the traffic sign composite film 5.

[0112] In this embodiment, the thickness of the aluminum-plated substrate film 504 is 80 μm.

[0113] In this embodiment, the reflective film 501 is a glass bead reflective film 501, which meets the requirements for nighttime reflection; the surface of the reflective film 501 is coated with a high-transmittance UV-resistant coating with a thickness of 15μm, which improves the weather resistance and scratch resistance of this embodiment.

[0114] During installation in this embodiment, open the waterproof outer packaging (waterproof sealed bag), place the front and rear frame shells on the front and rear sides of the traffic sign 8 to be replaced, align the front and rear annular grooves with the outer edge of the traffic sign 8, and apply force to fasten the interlocking buckles. After the silicone ring 4 absorbs moisture and slightly cures through the permeable holes 7, remove the front and rear frame shells. At this time, the traffic sign composite film 5 adheres to the traffic sign 8 along with the silicone ring 4. The cured silicone ring 4 stably clamps the traffic sign composite film 5 to the surface of the traffic sign 8 that needs to be replaced, and hides the edges of the traffic sign composite film 5 inside, avoiding problems such as curling of the edges of the traffic sign composite film 5 as the adhesion time increases, thus extending the service life of the traffic sign composite film 5. At the same time, the silicone itself has good weather resistance and is not easy to fall off.

[0115] Based on the disclosure and teachings of the foregoing specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on the present invention.

Claims

1. A positioning film structure for conveniently updating a traffic signboard layout, characterized by, The traffic sign composite film is at least composed of an aluminized base film, a bottom color film, an information word film and a reflective film which are sequentially arranged, and a glue layer is arranged between the films for adhering and combining the films. The front frame shell has a front ring groove, and the rear frame shell has a rear ring groove, the inner ring edges of the front and rear ring grooves are smaller than the outer edges of the traffic sign to be updated, and the outer ring edges of the front and rear ring grooves are larger than the outer edges of the traffic sign. A silicone rubber ring is pre-installed in the front and rear ring grooves, and a plurality of water-permeable small holes are arranged in the front and rear ring grooves, the diameters of the water-permeable small holes are set to be unable to be penetrated by the silicone rubber. The peripheral size of the traffic sign composite film is larger than the inner ring edge of the front ring groove and smaller than the outer ring edge of the front ring groove, the edge of the traffic sign composite film is adhered or covered by the silicone rubber ring in the front ring groove, and then the traffic sign composite film is pre-installed and fixed to the rear side of the front frame shell, and the traffic sign composite film and the front frame shell are separately arranged. A waterproof and moisture-proof outer package is further arranged to completely separate the silicone rubber ring from the external environment. A flexible metal reinforcing grid is further arranged.

2. The positioning film structure for easy updating of a traffic signboard version according to claim 1, wherein, The metal reinforcing grid is adhered to the rear side of the aluminized base film, and the outer edge of the metal reinforcing grid is flush with the outer edge of the traffic sign composite film. A flexible metal reinforcing grid is further arranged.

3. The positioning film structure for easy updating of a traffic signboard version according to claim 1, wherein, The metal reinforcing grid is adhered to the rear side of the aluminized base film, and the outer edge of the metal reinforcing grid is larger than the outer edge of the traffic sign composite film and smaller than the outer ring edge of the front ring groove, and the outer edge of the metal reinforcing grid is adhered or covered by the silicone rubber ring in the front ring groove. The outer ring edge of the front ring groove extends to the outer periphery of the front ring groove to form a first outer edge beam, and the inner ring edge of the front ring groove extends to the center of the front ring groove to form a first inner edge beam.

4. The positioning film structure for easy updating of a traffic signboard version according to any one of claims 1 to 3, characterized in that, The outer ring edges of the rear ring groove extend to the outer periphery of the rear ring groove to form a second outer edge beam, and the inner ring edges of the rear ring groove extend to the center of the rear ring groove to form a second inner edge beam. The front frame shell and the rear frame shell are flexible shells which can be elastically deformed. The front frame shell is a closed ring structure, and the rear frame shell is a non-closed ring structure with an opening. Part of the edges of the first outer edge beam and the second outer edge beam are connected to form a connection edge, the opening of the rear frame shell is arranged away from the connection edge, and the frame edges on both sides of the opening can be elastically deformed by force to move away from each other, and the width of the opening is increased. The first outer edge beam and the second outer edge beam are respectively provided with a matching die-locked interlocking buckle.

5. The positioning film structure for easy updating of a traffic signboard version according to claim 4, wherein The inner ring edge of the front ring groove extends to the center of the front ring groove and is inclined backward to form the first inner edge beam. The inner ring edge of the rear ring groove extends to the center of the rear ring groove and is inclined forward to form the second inner edge beam. ​ By force-fitting the die-pressed interlocking buckle, the first and second inner beams are deformed and fit the front and back outer surfaces of the traffic signboard, the silicone rubber rings in the front and back ring grooves are deformed and the upper portions are connected, and then the silicone rubber rings in the front and back ring grooves surround the outer peripheral edge of the traffic signboard after absorbing water and solidifying, and the traffic sign composite film is fixed to the outer surface of the traffic signboard.

6. The positioning film structure for easy updating of a traffic signboard version according to claim 5, wherein The die-pressed interlocking buckle comprises a plurality of first and second front protrusions that are adapted and correspond in position; The first front protrusion is formed by the first outer beam being recessed forward and is integrally formed with the first outer beam, and the second front protrusion is formed by the second outer beam being recessed forward and is integrally formed with the second outer beam, and the second front protrusion is clamped in the rear recess of the first front protrusion.

7. The positioning film structure for easy updating of a traffic signboard version according to any one of claims 1 to 3, characterized in that, The front and back ring grooves are padded with water-permeable starch film or glutinous rice paper, and the silicone rubber rings are injected into the side of the water-permeable starch film or glutinous rice paper that does not contact the front and back ring grooves.

8. The positioning film structure for easy updating of a traffic signboard version according to any one of claims 1 to 3, characterized in that, The diameter of the water-permeable small holes is r, and 0.1mm≤r≤1mm.

9. The positioning film structure for easy updating of a traffic signboard version according to any one of claims 1 to 3, characterized in that, The traffic sign composite film is provided with a plurality of through holes that penetrate through itself at a position close to the peripheral edge, and the plurality of through holes are arranged in the direction of the slot opening of the front ring groove.

10. The positioning film structure for easy updating of a traffic signboard version according to any one of claims 1 to 3, characterized in that, The reflective film is a glass bead reflective film or a micro-prism reflective film. The surface of the reflective film is coated with a high-transparency anti-UV coating.

Images