CN217461965U - Rail transit shielding door sealing strip assembly - Google Patents
Rail transit shielding door sealing strip assembly Download PDFInfo
- Publication number
- CN217461965U CN217461965U CN202220435248.0U CN202220435248U CN217461965U CN 217461965 U CN217461965 U CN 217461965U CN 202220435248 U CN202220435248 U CN 202220435248U CN 217461965 U CN217461965 U CN 217461965U
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- sealing
- sealing rubber
- strip
- rubber strip
- rail transit
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Abstract
The utility model relates to a rail transit shield door sealing strip subassembly, including two axisymmetric installing supports, two centrosymmetric joint strip, the supporting side of installing support is equipped with the draw-in groove of twice axisymmetric arrangement, the supporting side of joint strip is equipped with two axisymmetric arranged back-off strip, back-off strip and draw-in groove looks block; and when the shielding door is closed, the sealing convex tooth of one sealing rubber strip is inserted into the sealing groove of the other sealing rubber strip. The beneficial effects are that: the two sealing rubber strips are in a centrosymmetric structure, and only one set of production mold is needed, so that the production cost is reduced; the first cavity is formed in the sealing convex tooth, so that the deformation space of the sealing convex tooth is improved, the clamping force of an object clamped between two sealing rubber strips is reduced, and the shock absorption of the sealing rubber strips is improved; the characteristic that the glass fiber bundle has low thermal expansion and cold contraction rate is utilized, and the size change of the sealing rubber strip caused by thermal expansion and cold contraction is reduced.
Description
Technical Field
The utility model relates to a shield door seals the field, especially relates to a rail transit shield door sealing strip subassembly.
Background
According to the prior technical scheme, a concave adhesive tape and a convex adhesive tape are combined to form a door sealing adhesive tape, the lower parts of the concave adhesive tape and the convex adhesive tape are provided with mounting structures, the middle parts of the concave adhesive tape and the convex adhesive tape are provided with splayed structures which penetrate into a section bar to play a role in mounting and fixing, and two flat edges cover the section bar. The upper parts of the combined rubber strips are respectively a concave rubber strip and a convex rubber strip. The rubber strip is solid, and plays roles in positioning, damping and sealing when the shielding door is closed.
The defects of the prior art scheme are as follows: 1. the adhesive tape is too thick and solid, and the anti-pinch and shock absorption functions are insufficient, so that the door body is easy to damage objects after clamping the objects, and in addition, when the door body is closed, the door body is easy to rebound due to insufficient shock absorption. 2. The existing scheme adopts a concave-convex adhesive tape design, which is unfavorable for batch and simplified operation of products and is unfavorable for controlling the production cost of the products. 3. The existing scheme adopts a pure rubber material, the expansion with heat and the contraction with cold of the rubber strip are more obvious, and the control on the precise installation of the rubber strip and the reserved sealing gaps at two ends is unfavorable.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above problem that prior art exists, provide a rail transit shield door sealing strip subassembly.
For realizing above-mentioned technical purpose, reach above-mentioned technological effect, the utility model discloses a following technical scheme realizes:
a rail transit shield door sealing strip assembly comprises two axisymmetric mounting supports and two centrosymmetric sealing rubber strips, wherein two axisymmetric clamping grooves are formed in the supporting side of each mounting support, the cross sections of the clamping grooves are in a convex shape, two axisymmetric inverted buckle strips are arranged on the supporting side of each sealing rubber strip, and the inverted buckle strips are clamped with the clamping grooves; and the sealing side of each sealing rubber strip is provided with a sealing groove and a sealing convex tooth with a first cavity, and when the shielding door is closed, the sealing convex tooth of one sealing rubber strip is inserted into the sealing groove of the other sealing rubber strip.
Wherein, each back-off strip is embedded with at least one glass fiber bundle, and the diameter of the glass fiber bundle is 0.5 mm.
And a second cavity with a rectangular cross section is further arranged on one side of the sealing rubber strip away from the sealing groove.
Wherein the cross section of the first cavity is a right trapezoid.
And the front part and the rear part of the supporting side of the sealing rubber strip are respectively provided with a wrapping edge perpendicular to the sealing rubber strip.
The front end and the rear end of the mounting bracket are respectively provided with a straight edge for supporting the wrapping edge.
And the supporting side of the mounting bracket is positioned between the two clamping grooves and is provided with a containing groove for containing the head of the screw.
The utility model has the advantages that: 1. the two sealing rubber strips are in a centrosymmetric structure, and only one set of production mold is needed, so that the production cost is reduced; 2. the first cavity is formed in the sealing convex tooth, so that the deformation space of the sealing convex tooth is improved, the clamping force of an object clamped between two sealing rubber strips is reduced, and the shock absorption of the sealing rubber strips is improved; 3. the glass fiber bundles are embedded in the reversing strips, and the size change of the sealing rubber strips caused by expansion with heat and contraction with cold is reduced by utilizing the characteristic of low expansion and contraction with cold of the glass fiber bundles.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:
fig. 1 is a schematic structural view of a sealing strip assembly of a shield door for rail transit according to the present invention;
fig. 2 is a cross-sectional view of a mounting bracket according to the present invention;
FIG. 3 is a cross-sectional view of the joint strip of the present invention;
FIG. 4 is a schematic view of a prior art door seam strip;
the reference numbers in the figures illustrate: 1-mounting support, 2-sealing rubber strip, 3-clamping groove, 4-inverted buckle strip, 5-sealing groove, 6-first cavity, 7-sealing convex tooth, 8-glass fiber bundle, 9-second cavity, 10-edge covering, 11-straight edge and 12-accommodating groove.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1 to 3, the rail transit shield door sealing strip assembly comprises two axisymmetric mounting brackets 1 and two centrosymmetric sealing rubber strips 2, wherein the two sealing rubber strips 2 are of a centrosymmetric structure, and only one set of production mold is needed to be used, so that the production cost is reduced. The supporting side of the mounting bracket 1 is provided with two clamping grooves 3 which are axially symmetrically arranged, the cross sections of the clamping grooves 3 are in a convex shape, the supporting side of the sealing rubber strip 2 is provided with two inverted strips 4 which are axially symmetrically arranged, the cross sections of the inverted strips 4 are also in a convex shape, and the inverted strips 4 are clamped with the clamping grooves 3; the sealed side of joint strip 2 is equipped with sealed recess 5 and has the sealed dogtooth 7 of first cavity 6, and the cross section of first cavity 6 is right trapezoid, is equipped with first cavity 6 in the sealed dogtooth, improves the deformation space of sealed dogtooth, reduces the centre gripping dynamics that presss from both sides the object between two joint strip, improves joint strip's shock attenuation nature. When the shielding door is closed, the sealing convex tooth 7 of one sealing rubber strip 2 is inserted into the sealing groove 5 of the other sealing rubber strip 2.
Each back-off strip 4 is at least embedded with one glass fiber bundle 8, and the diameter of the glass fiber bundle 8 is 0.5 mm. The characteristic that the glass fiber bundle has low thermal expansion and cold contraction rate is utilized, and the size change of the sealing rubber strip caused by thermal expansion and cold contraction is reduced. After the sealing rubber strip is processed, when the sealing rubber strip is heated, the size expansion is reduced, and the precise installation of a prefabricated hole site of the sealing rubber strip and a door hole site is facilitated. In addition, after the sealing rubber strip is installed on the door body, the door body does not extend out of the upper end and the lower end of the door body due to thermal expansion of the sealing rubber strip in the use process, and the other parts of the upper part and the lower part of the door body are scraped when the switch is closed, so that the door body is unsmooth to open and close.
One side of the sealing rubber strip 2, which is far away from the sealing groove 5, is also provided with a second cavity 9 with a rectangular cross section, so that the shock absorption performance of the two sealing rubber strips in contact is further improved.
The front part and the rear part of the supporting side of the sealing rubber strip 2 are respectively provided with an edge covering 10 perpendicular to the sealing rubber strip, the mounting bracket 1 is packaged and hidden by the edge covering to play a role in beautifying and sealing a gap, and the front end and the rear end of the mounting bracket 1 are respectively provided with a straight edge 11 used for supporting the edge covering 10.
And a holding groove 12 for holding the head of the screw is arranged between the two clamping grooves 3 on the supporting side of the mounting bracket 1.
The foregoing shows and describes the basic principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.
Claims (7)
1. The utility model provides a track traffic shield door sealing strip subassembly which characterized in that: the clamping device comprises two axisymmetric mounting brackets and two centrosymmetric sealing rubber strips, wherein two clamping grooves which are axisymmetrically arranged are formed in the supporting side of each mounting bracket, the cross sections of the clamping grooves are in a convex shape, two reverse buckling strips which are axisymmetrically arranged are arranged on the supporting side of each sealing rubber strip, and the reverse buckling strips are clamped with the clamping grooves; and the sealing side of each sealing rubber strip is provided with a sealing groove and a sealing convex tooth with a first cavity, and when the shielding door is closed, the sealing convex tooth of one sealing rubber strip is inserted into the sealing groove of the other sealing rubber strip.
2. The rail transit screen door seal bar assembly of claim 1, wherein: at least one glass fiber bundle is embedded in each inverted buckle strip, and the diameter of each glass fiber bundle is 0.5 mm.
3. The rail transit screen door seal bar assembly of claim 1, wherein: and a second cavity with a rectangular cross section is further arranged on one side of the sealing rubber strip away from the sealing groove.
4. The rail transit screen door seal bar assembly of claim 1, wherein: the cross section of the first cavity is a right trapezoid.
5. The rail transit screen door seal bar assembly of claim 1, wherein: and the front part and the rear part of the supporting side of the sealing rubber strip are respectively provided with a wrapping edge perpendicular to the sealing rubber strip.
6. The rail transit screen door seal bar assembly of claim 5, wherein: the front end and the rear end of the mounting bracket are respectively provided with a straight edge for supporting the wrapping edge.
7. The rail transit screen door seal bar assembly of claim 1, wherein: and the supporting side of the mounting bracket is positioned between the two clamping grooves and is provided with a containing groove for containing the head of the screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220435248.0U CN217461965U (en) | 2022-03-01 | 2022-03-01 | Rail transit shielding door sealing strip assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220435248.0U CN217461965U (en) | 2022-03-01 | 2022-03-01 | Rail transit shielding door sealing strip assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217461965U true CN217461965U (en) | 2022-09-20 |
Family
ID=83266597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220435248.0U Active CN217461965U (en) | 2022-03-01 | 2022-03-01 | Rail transit shielding door sealing strip assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217461965U (en) |
-
2022
- 2022-03-01 CN CN202220435248.0U patent/CN217461965U/en active Active
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| GR01 | Patent grant |