Micro-bending-angle stainless steel composite elevator car plate

Abstract

The utility model relates to the technical field of stainless steel plate products, and discloses a micro-bending angle stainless steel composite elevator car plate which comprises a base plate and a face plate covering the base plate, the base plate is a common steel plate, and the face plate is a stainless steel plate. The base plate comprises a plate surface part, a pair of plate side parts and bending parts, the plate side parts are formed by vertically bending and extending from the two sides of the plate surface part in the width direction, the bending parts are formed by vertically bending and extending from the free sides of the plate side parts, and the surface of the plate surface part is in transition connection with the outer vertical surfaces of the plate side parts through an arc milling surface and a horizontal milling surface; and the panel covers the surface of the panel surface part and the arc milling surface in a bonding manner. By means of the technical scheme, the two stainless steel composite elevator car plates can be tightly spliced, and the wall face of the spliced car is more attractive.

Description

Technical Field

[0001] The utility model relates to the technical field of plate stainless steel plate products, in particular to a slightly bent angle stainless steel composite elevator car plate. Background Art

[0002] At present, stainless steel plates are often bent and used as the wall panels of elevator cars, and are installed on the skeleton structure of the car in a spliced ​​manner. Elevators provide up and down transportation in buildings and are essential equipment for economic activities and daily life. The thickness of the elevator car wall panel material is usually 1.5~2.0mm. It is relatively difficult to bend stainless steel plates of this thickness, and a relatively large bending radius will be formed after bending. Using existing means to bend a 2.0~3.0mm stainless steel plate will form an inner bending angle of about Φ=3.0mm (i.e. r=1.5mm), and a bending outer angle of about Φ=7.0mm (i.e. r=3.5mm) will be formed on the surface of the stainless steel plate. When the wall panels are spliced ​​in pairs, an excessively large bending radius will affect the tightness of the assembly and reduce the aesthetics.

[0003] To this end, the invention patent application with publication number CN101992993A and titled "Elevator Car Siding and Manufacturing Method Thereof" discloses a stainless steel composite plate, which is composed of a common steel bottom plate and a stainless steel surface plate stacked and connected, the common steel bottom plate is a 1.2mm common carbon steel plate, and the stainless steel surface plate is a 0.5~0.8mm stainless steel surface plate. The 1.2mm common carbon steel plate and the 0.5~0.8mm stainless steel plate are easy to bend, and the diameter of the inner angle of the bend can be reduced from the original greater than or equal to 3.0mm to 1.0~1.6mm, and the smaller bend radius will significantly improve the tightness and aesthetics of the connection.

[0004] However, the inner bending angle of Φ=1.0~1.6mm will form an outer bending angle of Φ=5.0~5.6mm (i.e. r=2.5~2.8mm) on the surface of the stainless steel composite plate. In actual operation, a relatively obvious splicing gap can still be seen, which affects the assembly tightness. Utility Model Content

[0005] The purpose of the present application is to overcome at least one of the above-mentioned technical problems and to provide a stainless steel composite elevator car panel with a micro-bent angle.

[0006] To achieve the above-mentioned technical objectives, one aspect of the utility model provides a slightly bent corner stainless steel composite elevator car panel, comprising a base plate and a panel covering the base plate, wherein the base plate is an ordinary steel plate and the panel is a stainless steel plate; the base plate comprises a plate face portion, a pair of plate side portions formed by vertically bending and extending from both sides in the width direction of the plate face portion, and a bending portion formed by vertically bending and extending from the free side of the plate side portion, the surface of the plate face portion and the outer facade of the plate side portion are transitionally connected by a circular arc milling surface and a horizontal milling surface, and the panel is bonded to cover the surface of the plate face portion and the circular arc milling surface.

[0007] By means of the above structure, the original bending outer angle of the stainless steel composite elevator car panel is divided into an arc milling surface and a horizontal milling surface by setting the arc milling surface and the horizontal milling surface, so that the arc milling surface is formally used as the bending outer angle of the stainless steel composite elevator car panel. At the same time, the thinner panel can be bent into a relatively small bending inner angle and a corresponding bending outer angle. After the two are combined, a stainless steel composite elevator car panel with a micro-bending outer angle can be obtained, so that the two stainless steel composite elevator car panels can be tightly assembled, and the wall of the car is more beautiful after assembly.

[0008] As a preferred implementation, the arc milling surface is a quarter arc surface, and its arc radius is 0.5-0.8 mm.

[0009] As a preferred implementation, the width of the horizontal milling surface is the same as the arc radius of the arc milling surface.

[0010] As a preferred implementation, the thickness of the substrate is 1.2-1.5 mm, and the thickness of the panel is 0.5-0.8 mm.

[0011] As a preferred implementation manner, the arc milling surface and the horizontal milling surface are transitionally connected via a vertical milling surface.

[0012] As a preferred embodiment, the height of the vertical milling surface is less than half of the height of the side portion of the plate.

[0013] As a preferred implementation, the thickness of the panel is equal to the width of the horizontal milling surface.

[0014] As a preferred embodiment, before bending, a pair of mirror-image wedge-shaped grooves are opened along the length direction of the substrate, and the wedge-shaped groove includes a first groove surface located on the inner side and a second groove surface located on the outer side, the first groove surface is a quarter arc surface, and the second groove surface is a vertical surface; the connecting line between the first groove surface and the second groove surface constitutes the bending reference line of the substrate.

[0015] As a preferred embodiment, before bending, a pair of mirror-image wedge-shaped grooves are opened along the length direction of the substrate, and the wedge-shaped groove includes a first groove surface located on the inner side, a second groove surface located on the outer side, and a groove bottom surface connecting the first groove surface and the second groove surface, the first groove surface is a quarter arc surface, the second groove surface is a vertical surface, and the groove bottom surface is a horizontal surface; the connecting line between the first groove surface and the groove bottom surface constitutes the bending reference line of the substrate.

[0016] In summary, the utility model has at least the following advantages:

[0017] By setting the arc milling surface, the arc milling surface is used as the bending outer angle of the stainless steel composite elevator car panel in form. At the same time, the thinner panel can be bent into a relatively small bending inner angle and a corresponding bending outer angle. After the two are combined, a stainless steel composite elevator car panel with a micro-bending outer angle can be obtained, so that two stainless steel composite elevator car panels can be tightly assembled, and the wall of the car is more beautiful after assembly.

[0018] By setting the vertical milling surface, the thickness of the panel is made equal to the width of the horizontal milling surface, so that the bent part of the panel covering the vertical milling surface after bending fills the part of the substrate that is milled away, and the section corresponding to the vertical milling surface has the same thickness as other sections of the substrate, avoiding the influence of the mechanical strength of the place due to structural improvement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative labor.

[0020] Figure 1 This is a schematic diagram of the structure of the slightly bent angle stainless steel composite elevator car panel of Example 1 of this case.

[0021] Figure 2 This is a schematic diagram of the structure of the substrate of Example 1 of this case.

[0022] Figure 3 This is a schematic diagram of the structure of the panel of Example 1 of this case.

[0023] Figure 4 This is a schematic diagram of the structure of the substrate of Example 1 of the present case before bending.

[0024] Figure 5 for Figure 4 A partial enlarged view of point A in the middle.

[0025] Figure 6 This is a structural schematic diagram of the slightly bent angle stainless steel composite elevator car panel of Example 2 of this case.

[0026] Figure 7 This is a schematic diagram of the structure of the substrate after bending in Example 2 of this case.

[0027] Figure 8 for Figure 7 Schematic diagram of the state before bending at B in the middle.

[0028] In the above attached figure: 1,1 ’ , substrate, 2,2 ’ , Panel, 11,11 ’ 、Board face, 12,12 ’ , board side, 13,13 ’ , bending part, 14, arc milling surface, 15, horizontal milling surface, 16, vertical milling surface, 14 ’ , first groove surface, 15 ’ , second groove surface, 16 ’ , groove bottom surface. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this application.

[0030] Example 1: Reference Figures 1 to 3 The illustrated embodiment is a slightly bent angle stainless steel composite elevator car panel, comprising a base plate 1 and a panel 2 covering the base plate 1 .

[0031] The substrate 1 is an ordinary steel plate with a thickness of 1.2~1.5mm, including a plate face portion 11, a pair of plate side portions 12 formed by vertically bending and extending from both sides of the width direction of the plate face portion 11, and a bending portion 13 formed by vertically bending and extending from the free side of the plate side portion 12. The surface of the plate face portion 11 and the outer facade of the plate side portion 12 are transitionally connected through an arc milling surface 14 and a horizontal milling surface 15.

[0032] Since the plate face portion 11 and the plate side portion 12 are formed by bending, a bending inner angle with a radius of r=0.4~0.6mm is formed between the inner surface of the plate face portion 11 and the inner surface of the plate side portion 12, and the outer surface of the plate face portion 11 and the outer surface of the plate side portion 12 are transitionally connected through the arc milling surface 14 and the horizontal milling surface 15. The arc milling surface is a quarter of an arc surface, and its arc radius r=0.5~0.8mm, and the width of the horizontal milling surface b=0.5~0.8mm, in particular, it is the same as the arc radius of the arc milling surface.

[0033] The panel 2 is a stainless steel plate with a thickness of 0.5-0.8 mm, and the panel 2 is bonded to the outer surface of the panel face 11 and the arc milling surface 14. The panel 2 is attached to the outer surface of the panel face 11 and the arc milling surface 14, so the thinner panel 2 forms a relatively small bending angle, and the outer bending angle of the base plate 1 is actually replaced by the arc milling surface, so that from the surface of the stainless steel composite elevator car panel, a bending outer angle with a radius of r=1.0-1.6 mm is formed, and the micro bending angle can facilitate the close assembly of adjacent stainless steel composite elevator car panels, and the assembly is also more beautiful.

[0034] Reference Figure 4 , Figure 5 As shown, the slightly bent stainless steel composite elevator car panel of this embodiment is prepared by the following method:

[0035] First, take a common steel plate with a thickness of 1.2~1.5mm as the substrate 1 ’ , on substrate 1 ’ A pair of mirror-image wedge-shaped grooves are provided along the length direction thereof, and the wedge-shaped grooves include a first groove surface 14 located on the inner side. ’ , the second groove surface 15 located on the outside ’ , by the first groove surface 14 ’ and the second groove surface 15 ’ The opening formed by the enclosed structure, the first groove surface 14 ’ It is a quarter arc surface with r=0.5~0.8mm, and the second groove surface is 15 ’ The first groove surface 14 ’ The vertical surface of the connection; the wedge-shaped groove will ’ Divided into board face 11 ’ And located on the board surface 11 ’ The remaining part of both sides 12 ’ ,13 ’ , the remaining portion is suitable for forming the plate side portion 12 and the bent portion 13;

[0036] Then, the first groove surface 14 ’ and the second groove surface 15 ’The connecting line is the bending reference line for the first bending of substrate 1 ’ , thereby forming a plate face 11, a circular milling face 14, a horizontal milling face 15, and the remaining portions 12 on both sides of the plate face 11 ’ ,13 ’ , and the inner bending angle with radius r=0.4~0.6mm;

[0037] Then, a stainless steel plate with a thickness of 0.5~0.8mm is used as the panel 2 ’ , and cut its width to be equal to the sum of the width of the plate surface 11, the arc length of the arc milling surface 14, and the width of the horizontal milling surface 15;

[0038] Then, on board 2 ’ The back of the panel 2 is coated with an adhesive of the prior art, and then the panel 2 ’ Covering substrate 1 ’ and bend with the arc milling surface 14 as a reference;

[0039] Finally, the first bending substrate 1 ’ , thereby forming the plate side portion 12 and the bent portion 13.

[0040] For example, the substrate 1 is a common carbon steel plate with a thickness of 1.5 mm, the panel 2 is a stainless steel plate with a thickness of 0.5 mm, and the first groove surface 14 ’ The radius r = 0.5mm, the second groove surface 15 ’ The width is 0.5mm, and the radius of the bending outer angle of the composite micro-bending stainless steel composite elevator car panel is r=0.6mm.

[0041] For example, the substrate 1 is a common carbon steel plate with a thickness of 1.2 mm, the panel 2 is a stainless steel plate with a thickness of 0.8 mm, and the first groove surface 14 ’ The radius r = 0.8mm, the second groove surface 15 ’ The width is 0.8mm, and the radius of the bending outer angle of the composite micro-bending stainless steel composite elevator car panel is r=0.8mm.

[0042] For example, the substrate 1 is a common carbon steel plate with a thickness of 1.4 mm, the panel 2 is a stainless steel plate with a thickness of 0.6 mm, and the first groove surface 14 ’ The radius r = 0.6mm, the second groove surface 15 ’ The width is 0.6mm, and the radius of the bending outer angle of the composite micro-bending stainless steel composite elevator car panel is r=0.7mm.

[0043] Embodiment 2: Embodiment 2 differs from Embodiment 1 in that, referring to Figure 6As shown, the arc milling surface 14 and the horizontal milling surface 15 are transitionally connected by a vertical milling surface 16 . Preferably, the height of the vertical milling surface 16 is less than half of the height of the plate side 12 to alleviate the influence of the opening of the vertical milling surface 16 on the strength of the plate side 12 .

[0044] Reference Figure 7 , Figure 8 As shown, before the substrate 1 of this embodiment is folded, its wedge-shaped groove includes a first groove surface 14 located on the inner side. ’ , the second groove surface 15 located on the outside ’ , connect the first groove surface 14 ’ and the second groove surface 15 ’ The bottom surface of the groove 16 ’ , and an opening formed by three groove surfaces, the first groove surface 14 ’ The second groove surface is 15 ’ It is a vertical surface, the bottom surface of the groove is 16 ’ Is a horizontal plane. With the first groove surface 14 ’ and groove bottom 16 ’ The connecting line constitutes the reference line for the first bending of the substrate.

[0045] Panel 2 ’ The width is cut to be equal to the sum of the width of the plate surface 11, the arc length of the arc milling surface 14, the width of the vertical milling surface 16, and the width of the horizontal milling surface 15.

[0046] The above description is intended to be illustrative and not limiting. Upon reading the above description, many embodiments and many applications beyond the examples provided will be apparent to those skilled in the art. Therefore, the scope of the present teachings should not be determined with reference to the above description, but should be determined with reference to the appended claims and the full scope of equivalents to which such claims are entitled. For the purpose of comprehensiveness, all articles and references, including disclosures of patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended to be a waiver of such subject matter, nor should it be considered that the applicant has not considered such subject matter to be part of the disclosed application subject matter.

Claims

1. A slightly bent stainless steel composite elevator car panel, comprising a base plate and a panel covering the base plate, wherein the base plate is a common steel plate and the panel is a stainless steel plate; characterized in that: The substrate includes a plate face portion, a pair of plate side portions formed by vertically bending and extending from both sides in the width direction of the plate face portion, and a bent portion formed by vertically bending and extending from the free sides of the plate side portions. The surface of the plate face portion and the outer facade of the plate side portion are transitionally connected through an arc milling surface and a horizontal milling surface, and the panel is bonded to cover the surface of the plate face portion and the arc milling surface.

2. The slightly bent stainless steel composite elevator car panel according to claim 1, characterized in that: The arc milling surface is a quarter arc surface, and its arc radius is 0.5-0.8 mm.

3. The slightly bent stainless steel composite elevator car panel according to claim 2, characterized in that: The width of the horizontal milling surface is the same as the arc radius of the arc milling surface.

4. The slightly bent stainless steel composite elevator car panel according to claim 1, characterized in that: The thickness of the substrate is 1.2-1.5 mm, and the thickness of the panel is 0.5-0.8 mm.

5. The slightly bent stainless steel composite elevator car panel according to claim 1, characterized in that: The arc milling surface and the horizontal milling surface are transitionally connected via a vertical milling surface.

6. The slightly bent stainless steel composite elevator car panel according to claim 5, characterized in that: The height of the vertical milled face is less than half the height of the plate side.

7. The slightly bent stainless steel composite elevator car panel according to claim 1 or 5, characterized in that: The thickness of the panel is equal to the width of the horizontal milling surface.

8. The slightly bent stainless steel composite elevator car panel according to claim 1, characterized in that: Before bending, a pair of mirror-image wedge-shaped grooves are opened along the length direction of the substrate, and the wedge-shaped groove includes a first groove surface located on the inner side and a second groove surface located on the outer side. The first groove surface is a quarter arc surface, and the second groove surface is a vertical surface; the connecting line of the first groove surface and the second groove surface constitutes the bending reference line of the substrate.

9. The slightly bent stainless steel composite elevator car panel according to claim 5, characterized in that: Before bending, a pair of mirror-image wedge-shaped grooves are opened along the length direction of the substrate, the wedge-shaped groove includes a first groove surface located on the inner side, a second groove surface located on the outer side, and a groove bottom surface connecting the first groove surface and the second groove surface, the first groove surface is a quarter arc surface, the second groove surface is a vertical surface, and the groove bottom surface is a horizontal surface; the connecting line between the first groove surface and the groove bottom surface constitutes the bending reference line of the substrate.

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