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CN-224227682-U - Traffic sign plate structure easy to replace reflective film

CN224227682UCN 224227682 UCN224227682 UCN 224227682UCN-224227682-U

Abstract

The utility model discloses a traffic sign board structure with an easy-to-replace reflective film, which belongs to the technical field of traffic facilities and comprises an old metal base plate, a back base film and the reflective film, wherein the back base film comprises a first resin layer, an aluminized layer, a first back adhesive layer and a first stripping back paper layer which are sequentially stacked, the reflective film comprises a second resin layer, a reflective layer, a second back adhesive layer and a second stripping back paper layer which are sequentially stacked, the back base film is composed of at least one back base piece, and a single back base piece or a plurality of back base pieces are spliced transversely or longitudinally and then completely cover a sign face. According to the utility model, the flexible back base film is adopted to replace the traditional thin aluminum plate, so that the weight of the signboard is greatly reduced, and the paving of the reflective film base material can be completed only by sticking the back base film and assisting in reinforcing by riveting pieces after the original character film of the old metal bottom plate is removed, so that the bonding strength is ensured, and the problem of disorder layout caused by dense arrangement of rivets in the traditional jacket method is avoided.

Inventors

  • YI QIUHUA
  • MEI JUN

Assignees

  • 广州市鑫港新材料有限公司

Dates

Publication Date
20260512
Application Date
20250429

Claims (10)

  1. 1. The utility model provides an easy traffic sign plate structure who changes reflective membrane, includes old metal bottom plate, back of body basilar membrane and reflective membrane, its characterized in that: The old metal bottom plate is provided with a back plate surface and a mark surface, the back plate surface is fixedly connected with the support frame, and an original reflective film on the mark surface is cleaned and forms a plane to be covered; The back base film comprises a first resin layer, an aluminized layer, a first back adhesive layer and a first stripping back paper layer which are sequentially stacked, wherein the reflective film comprises a second resin layer, a reflective layer, a second back adhesive layer and a second stripping back paper layer which are sequentially stacked, the reflective layer is a microprism layer or a glass bead layer, the back base film is adhered to the mark surface through the first back adhesive layer after the first stripping back paper layer is stripped, and the reflective film is adhered to the outer surface of the first resin layer of the back base film through the second back adhesive layer after the second stripping back paper layer is stripped; The back base film is composed of at least one back base sheet section, wherein a single back base sheet section completely covers the mark surface, or a plurality of back base sections completely cover the mark surface after being spliced in the transverse direction or the longitudinal direction, and riveting pieces are arranged at the circumferential contour edges of the back base sections or the splicing positions of the adjacent back base sections and are used for reinforcing the back base film on the old metal base plate.
  2. 2. The traffic sign structure with easy-to-replace reflective membrane of claim 1, wherein the back base segment is a rectangular or special-shaped flexible coiled material, and the plurality of back base sheet segments cover the sign face in a manner of transverse tiling, longitudinal tiling or staggered splicing.
  3. 3. The traffic sign structure with easy-to-replace reflecting film according to claim 2, wherein the splicing part of the adjacent back base sections is a butt joint structure, the distance between the edges is not more than 1mm, or is a lap joint structure, and the lap joint length of one back base section edge covered by the other back base section is not less than 5 mm.
  4. 4. The traffic sign structure with easy-to-replace reflecting film according to claim 1, wherein the rivet is a blind rivet, and the upper edge of the head is not higher than the upper end face of the back base film or the protruding height is not more than 1 mm.
  5. 5. The traffic sign structure with easy-to-replace reflective membrane of claim 4, wherein the rivets are arranged at intervals along the circumferential contour edge or the joint of the back base section, and the interval distance between adjacent rivets is 0.8 m to 1.2 m.
  6. 6. The traffic sign structure with easy-to-replace reflecting film according to claim 1, wherein the total thickness of the back base film is 1.8-2.2 mm, the first resin layer is a weather-resistant polyurethane layer with a thickness of 0.5-0.8 mm, and the aluminized layer has a thickness of 0.02-0.05 mm.
  7. 7. The traffic sign structure with easy-to-replace reflecting film of claim 1, wherein the second resin layer is a UV resin layer or a polyester layer, a character film is adhered on the outer surface of the second resin layer, and the micro-prism layer of the reflecting layer is composed of a three-dimensional array with a prism height of 0.1-0.3 mm, or the glass bead particle size of the glass bead layer is 50-150 microns.
  8. 8. The traffic sign structure with easy-to-replace reflective film as set forth in claim 1, wherein the first and second back adhesive layers are acrylic pressure sensitive adhesive layers with a peel force of not less than 30 newtons per 25 mm and a temperature resistance ranging from-40 ℃ to 80 ℃.
  9. 9. The traffic sign structure with easy-to-replace reflective film as set forth in claim 1, wherein the original reflective film on the sign face comprises an original base film and an original character film, the plane to be covered is configured to retain the original base film, and the original character film is removed.
  10. 10. The traffic sign structure easy to replace a reflective membrane according to claim 1, wherein the support frame comprises a column and a cross bar, one end of the column is fixed with the ground, the other end of the column is vertically connected with the cross bar, and the cross bar is fixed with the back plate surface through bolts, riveting or welding.

Description

Traffic sign plate structure easy to replace reflective film Technical Field The utility model belongs to the technical field of traffic facilities, and particularly relates to a traffic sign board structure with a reflective film easy to replace. Background Along with the rapid expansion of the domestic road network and the continuous improvement of traffic safety standards, the number and updating requirements of the traffic signboards serving as core carriers for road information transmission are remarkably increased. However, a large number of early-installed traffic signs need to be modified or replaced due to material aging, reduced light reflection performance, or outdated information. In the traditional transformation process, the removal difficulty of the reflective film on the surface of the old mark is high, the time consumption is long, and especially the residual colloid needs to be repeatedly treated, so that the construction period is prolonged, and the labor cost is increased. According to statistics, the time consumption for the transformation of the single signpost can be several times of that of conventional replacement, and the road upgrading efficiency is severely restricted. At present, the old mark reconstruction mainly depends on two technical schemes, namely a high-pressure water gun cleaning method and an outer sleeve covering method. The high-pressure water gun equipment (the single water gun equipment has the cost of about 10-20 ten thousand yuan) is needed to be arranged in the former, the reflective film is stripped through high-pressure water flow, but the problems of high equipment investment, environmental pollution caused by stripping waste films, secondary cleaning of residual glue by using an organic solvent and the like exist, the thin aluminum plate is used as a base material for covering an old mark, the old film is prevented from being directly cleaned, the aluminum material resource is needed to be additionally consumed, and rivets are needed to be densely added on the old plate for fixing, so that the construction complexity is increased, and the attractiveness of the mark is influenced. In addition, the inherent drawbacks of aluminum panels as retroreflective film substrates further exacerbate the retrofitting problem: (1) The weight is large, the density of the aluminum plate is higher (about 2.7g/cm 3), so that the overall weight of the signpost is increased, the installation and transportation cost is increased, and the transportation difficulty is remarkably increased particularly when the signpost is operated at a high altitude or in a remote road section; (2) The aluminum plate is easy to corrode due to long-term exposure to rain, ultraviolet rays, snow melt agents and other environments, so that the aluminum plate is easy to oxidize and corrode, the structural strength is reduced, the service life is prolonged, and frequent maintenance or replacement is forced; (3) The recycling of the aluminum plate is difficult, the aluminum plate is required to be recycled by depending on professional smelting equipment, the process is complex, the energy consumption is high, the low-cost recycling is difficult to realize, and the aluminum plate is contrary to the green sustainable development concept. Therefore, in order to improve the construction efficiency and shorten the engineering time, it is highly desirable to provide a traffic sign structure that is easy to replace the reflective film, so as to solve the above-mentioned drawbacks in the prior art. Disclosure of Invention Aiming at the problems in the related art, the utility model provides the traffic sign structure with the easy replacement of the reflective film, and the technical problems of low construction efficiency, long engineering time and the like of the conventional traffic sign reconstruction engineering are solved by arranging the flexible back base film between the old metal bottom plate and the reflective film to replace the conventional thin aluminum plate. The technical scheme of the utility model is realized in such a way that the traffic sign board structure with the reflective film easy to replace comprises an old metal bottom plate, a back base film and the reflective film; The old metal bottom plate is provided with a back plate surface and a mark surface, the back plate surface is fixedly connected with the support frame, and an original reflective film on the mark surface is cleaned and forms a plane to be covered; The back base film comprises a first resin layer, an aluminized layer, a first back adhesive layer and a first stripping back paper layer which are sequentially stacked, wherein the reflective film comprises a second resin layer, a reflective layer, a second back adhesive layer and a second stripping back paper layer which are sequentially stacked, the reflective layer is a microprism layer or a glass bead layer, the back base film is adhered to the mark surface through the fir