High-strength rolling dislocation metal framework and sealing strip

Abstract

The utility model provides a high-strength rolling dislocation metal framework and a sealing strip. The metal framework comprises a base body, the center axis of the base body extends in the first direction, a plurality of tooth wings are arranged on the two sides of the base body in the first direction, the tooth wings extend in the second direction, and the second direction is perpendicular to the first direction; interval notches are formed between the adjacent tooth wings, the two sides of each interval notch are parallel, the end, close to the center shaft, of each interval notch is in an arc shape, the tooth wings located on the two sides of the base body are arranged in a staggered mode in the first direction, and an S-shaped bridging structure is formed between the interval notches in the two sides of the base body. The metal framework provided by the utility model has higher flexibility and can be bent into a more complex shape, and meanwhile, as the end parts of the interval notches are arranged to be arc-shaped, compared with a form that two straight lines intersect, stress concentration is avoided, and the tensile strength of the metal framework in the length direction is effectively improved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of metal skeleton, in particular to a high-strength roll-pressed staggered metal skeleton and a sealing strip. BACKGROUND

[0002] Engine compartments, luggage and vehicle door openings of vehicles, aircraft and other equipment are all equipped with sealing strips. Taking a car sealing strip as an example, it is mainly composed of a metal skeleton and a sealing material plastic material wrapped outside the metal skeleton. The metal skeleton is bent into a U-shaped clamping structure before or after being wrapped with the sealing material, and is clamped on the sealing flange of the opening to support and reduce the deformation of the sealing strip. For example, the inner and outer water-cut sealing strips of the car door and the glass guide groove sealing strip, the traditional process is to use a steel strip as a metal skeleton, and the sealing material plastic material is adhered on the surface of the steel strip by coating, thereby forming a sealing strip.

[0003] The utility model patent with the authorization announcement number CN215793575U discloses a high-stretch staggered roll-shear stretching steel strip and sealing strip, the steel strip is used as a metal skeleton, the both sides of the steel strip are provided with tooth pieces, the tooth root positions of adjacent tooth pieces form an angle, when the steel strip is subjected to a tensile force along the length direction, the tensile force will be concentrated at the angle position, which is easy to cause the steel strip to be broken. SUMMARY

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a high-strength roll-pressed staggered metal skeleton and a sealing strip to solve the above-mentioned problems.

[0005] The first aspect of the present application provides a high-strength roll-pressed staggered metal skeleton, comprising:

[0006] a base body, a central axis of the base body extends along a first direction, a plurality of tooth wings are arranged on both sides of the base body along the first direction, the tooth wings extend along a second direction, and the second direction is perpendicular to the first direction; a spacing cut is provided between adjacent tooth wings, the spacing cut is parallel on both sides and one end close to the central axis is arc-shaped, the tooth wings on both sides of the base body are arranged in a staggered manner in the first direction, and an S-shaped bridging structure is formed between the spacing cuts on both sides of the base body.

[0007] According to the technical scheme provided by the embodiments of the present application, the spacing cut on one side of the base body corresponds to the central position of the tooth wing on the other side of the base body.

[0008] According to the technical scheme provided by the embodiments of the present application, the lengths of the tooth wings on the same side of the base body are equal, and the length of the tooth wing on one side of the base body is not equal to the length of the tooth wing on the other side.

[0009] According to the technical scheme provided in the embodiment of the application, the interval cutout is equal in distance to the center shaft at one end close to the center shaft.

[0010] According to the technical scheme provided in the embodiment of the application, the interval cutout is equal in distance to the center shaft at one end close to the center shaft.

[0011] According to the technical scheme provided in the embodiment of the application, the width of the tooth wing is between 2mm and 6mm, and the width of the interval cutout is less than or equal to 1.5mm.

[0012] The second aspect of the application provides a sealing strip comprising the high-strength roll-pressed misaligned metal framework and sealing material wrapped outside the metal framework.

[0013] According to the technical scheme provided in the embodiment of the application, the material of the sealing material is plastic.

[0014] Compared with the prior art, the application has the beneficial effects that: by arranging multiple tooth wings on both sides of the base body and arranging interval cutouts between adjacent tooth wings, the first aspect makes it convenient to bend the metal framework into different shapes to adapt to the production of sealing strips of different shapes, and the second aspect makes the plastic material injected outside the metal framework during the production of the sealing strip be able to be closely attached to the metal framework through the interval cutouts, so that the gluing operation between the metal framework and the plastic material can be omitted; by arranging the one end of the interval cutout close to the center shaft to be arc-shaped, compared with the form of the tooth wings being at an angle, the stress can be effectively avoided from being concentrated at the angle position to cause the problem of the metal framework being easily broken in the first direction, so that the tensile strength of the metal framework in the first direction is improved; the S-shaped bridge structure formed between the interval cutouts on both sides of the base body can effectively increase the tensile strength of the metal framework in the second direction. BRIEF DESCRIPTION OF DRAWINGS

[0015] Other features, objects and advantages of the application will become more apparent from the following detailed description of non-limiting embodiments made with reference to the accompanying drawings:

[0016] Figure 1 The structural schematic diagram of the high-strength roll-pressed misaligned metal framework provided in the application is shown in the figure.

[0017] Figure 2 The cross-sectional schematic diagram of the metal framework shown in the figure along the A-A direction is shown in the figure. Figure 1

[0018] Reference signs: 1, base body; 2, center shaft; 3, tooth wing; 4, interval cutout; 5, bridge structure. DETAILED DESCRIPTION

[0019] ​The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the relevant invention and are not intended to limit the invention. It should also be noted that, for ease of description, only portions relevant to the invention are shown in the accompanying drawings.

[0020] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0021] Example 1

[0022] Please refer to Figure 1 This embodiment provides a high-strength rolled dislocation metal skeleton and sealing strip, including:

[0023] A base 1, wherein the central axis 2 of the base 1 extends along a first direction, and a plurality of tooth wings 3 are arranged on both sides of the base 1 along the first direction, and the tooth wings 3 extend along a second direction, and the second direction is perpendicular to the first direction; a spacer cutout 4 is provided between adjacent tooth wings 3, and the two sides of the spacer cutout 4 are parallel and arc-shaped at one end close to the central axis 2, and the tooth wings 3 located on both sides of the base 1 are staggered in the first direction, and an S-shaped bridging structure 5 is formed between the spacer cutouts 4 on both sides of the base 1.

[0024] Specifically, the substrate 1 is a metal sheet, and the first direction is Figure 1 The vertical direction in the second direction is Figure 1 The horizontal direction of the metal frame; the two sides of the base 1 are cut to form a plurality of tooth wings 3, each of which is rectangular, with the second direction as the length direction and the first direction as the width direction. Two adjacent tooth wings 3 on the same side of the base 1 are separated by a spacing cut 4, which extends to a position of the base 1 near the central axis 2. The provision of the spacing cut 4 makes each tooth wing 3 relatively independent, and each tooth wing 3 can be bent individually to change the shape of the metal frame, facilitating the production of sealing strips of different shapes. At the same time, because the spacing cuts 4 separate the tooth wings 3, when plastic material is wrapped around the metal frame, the plastic material can pass through the spacing cuts 4 from one side of the base 1 to the other. On the one hand, the plastic material can be clamped at the location of the spacing cut 4, eliminating the process of gluing the metal frame and the plastic material. On the other hand, the plastic material can be wrapped around each tooth wing 3 to improve the firmness of the connection with the metal frame.

[0025] Specifically, the interval cut 3 is obtained by cutting the base body 1, and the structure of the plurality of tooth wings 3 arranged on both sides of the base body 1 can increase the tensile property of the metal framework in the second direction, but the tooth root with an included angle is generated between the tooth wings 3 due to the cutting, and the tooth root position is easy to cause stress concentration in the included angle position under the tensile force in the first direction, thereby causing the metal framework to break. The metal framework provided in the embodiment further has a rolling process after the base body 1 is cut, and the position near the central axis 2 on the base body 1 is rolled, please refer to Figure 2 , so that the interval cut 4 at the tooth root position of the tooth wing 3 is changed from the stress concentrated tooth root to a small circular arc shape, the circular arc shaped tooth root can effectively avoid the included angle position of the stress concentrated tooth root, thereby improving the tensile property of the metal framework in the first direction, and the interval between the adjacent tooth wings 3 is also increased by rolling.

[0026] Specifically, the tooth wings 3 on both sides of the base body 1 are staggered, and then the interval cuts 4 on both sides of the base body 1 are also staggered, and the staggered tooth wings 3 are more convenient for bending the shape of the metal framework. The staggered tooth wings 3 and the staggered interval cuts 4 cooperate to form an S-shaped bridging structure at the position of the central axis 2, and the S-shaped bridging structure effectively increases the tensile property of the metal framework in the second direction.

[0027] Further, the interval cut 4 on one side of the base body 1 corresponds to the central position of the tooth wing 3 on the other side of the base body 1.

[0028] Specifically, the center line of the interval cut 4 on one side of the base body 1 is collinear with the center line of the tooth wing 3 on the other side of the base body 1 in the second direction, thereby making the width of each position on the bridging structure 5 relatively uniform, and ensuring that the strength of the bridging structure on the metal framework is uniform.

[0029] Further, the lengths of the tooth wings 3 on the same side of the base body 1 are equal, and the length of the tooth wing 3 on one side of the base body 1 is equal to or not equal to the length of the tooth wing 3 on the other side of the base body 1.

[0030] Specifically, under normal circumstances, the lengths of the tooth wings 3 on both sides of the base body 1 are equal, but in order to adapt to the sealing strip with a complex structure, the lengths of the tooth wings 3 on both sides of the base body 1 can also be set to be unequal, thereby the metal framework on both sides can be bent into different shapes. It should be noted that the length direction of the tooth wing 3 is the second direction, and the lengths of all the tooth wings 3 on the same side of the base body 1 are equal.

[0031] Further, the distance from one end of each interval cut 4 near the central axis 2 to the central axis 2 is equal.

[0032] Specifically, one end of each of the interval cutouts 4 close to the central axis 2 is arranged at a distance equal to that of the central axis 2, so as to further ensure the relative uniformity of the width of the bridge structure 5 at various positions.

[0033] Further, one end of the interval cutout 4 close to the central axis 2 is arranged at a distance greater than or equal to 1 mm from the central axis 2.

[0034] Specifically, the distance between one end of the interval cutout 4 close to the central axis 2 and the central axis 2 is adjusted according to customer requirements, but is required to be greater than or equal to 1 mm.

[0035] Further, the width of the tooth wing 3 is between 2 mm and 6 mm, and the width of the interval cutout 4 is less than or equal to 1.5 mm.

[0036] Embodiment 2

[0037] The present embodiment provides a sealing strip, comprising a high-strength rolled dislocation metal framework as described in Embodiment 1 or Embodiment 2, and a sealing material wrapped outside the metal framework.

[0038] Further, the material of the sealing material is plastic.

[0039] Specifically, the plastic is preferably ethylene-propylene-diene rubber, and other rubbers can also be selected.

[0040] The above description is merely preferred embodiments of the present application and a description of the principles of the technology used. Those skilled in the art should understand that the scope of the invention disclosed in the present application is not limited to the technical solutions formed by the specific combinations of the above technical features, and should also cover other technical solutions formed by any combinations of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features can be replaced with technical features disclosed in the present application (but not limited to) having similar functions to form technical solutions.

Claims

1. A high-strength rolled dislocation metal skeleton, characterized in that: include: A base (1), wherein a central axis (2) of the base (1) extends along a first direction, a plurality of tooth wings (3) are arranged on both sides of the base (1) along the first direction, the tooth wings (3) extend along a second direction, and the second direction is perpendicular to the first direction; a spacing cut (4) is provided between adjacent tooth wings (3), the spacing cut (4) is parallel on both sides and has an arc-shaped end close to the central axis (2), the tooth wings (3) located on both sides of the base (1) are staggered in the first direction, and an S-shaped bridge structure (5) is formed between the spacing cuts (4) on both sides of the base (1).

2. The high-strength rolled dislocation metal skeleton according to claim 1, characterized in that: The spaced cutout (4) located on one side of the base (1) corresponds to the center position of the tooth wing (3) on the other side of the base (1).

3. The high-strength rolled dislocation metal skeleton according to claim 2, characterized in that: The lengths of the tooth wings (3) on the same side of the base (1) are equal, and the length of the tooth wings (3) on one side of the base (1) is different from the length of the tooth wings (3) on the other side.

4. The high-strength rolled dislocation metal skeleton according to claim 3, characterized in that: The distance between one end of each of the spaced cuts (4) close to the central axis (2) and the central axis (2) is equal.

5. The high-strength rolled dislocation metal skeleton according to claim 4, characterized in that: The distance between the end of the spaced cutout (4) close to the central axis (2) and the central axis (2) is greater than or equal to 1 mm.

6. The high-strength rolled dislocation metal skeleton according to claim 5, characterized in that: The width of the tooth wing (3) is between 2 mm and 6 mm, and the width of the interval cutout (4) is less than or equal to 1.5 mm.

7. A sealing strip, characterized in that: It comprises the high-strength rolled dislocation metal skeleton as described in any one of claims 1 to 6, and a sealing material wrapped around the outside of the metal skeleton.

8. The sealing strip according to claim 7, characterized in that: The sealing material is made of plastic.

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