SMC (Sheet Molding Compound) door frame of double-leaf threshold-

Abstract

The SMC door frame of the double-leaf threshold-free protective airtight door comprises a top frame, two side frames and a bottom frame, the top frame comprises a first top frame body, a second top frame body, a third top frame body and a fourth top frame body, one end of the first top frame body is provided with a first connecting structure, the other end of the fourth top frame body is provided with a second connecting structure, and the second connecting structure is provided with a second connecting structure. The two side frames are symmetrically arranged at the two ends of the top frame, third connecting structures are arranged at the tops of the two side frames correspondingly, the two third connecting structures are connected with the first connecting structures and the second connecting structures in an inserted mode correspondingly, and the bottom frame comprises two first bottom frames and two second bottom frames; one ends of the two first bottom frames are connected with the bottoms of the two side frames in a clamped mode respectively, one ends of the two second bottom frames are matched, and the other ends of the two second bottom frames are matched with the other ends of the two first bottom frames respectively. The door frame is made of the SMC composite material, and the door frame is of a split structure, so that the door frame is light in weight and convenient to transport and install.

Description

Technical Field

[0001] This utility model relates to the field of protective sealing door technology, and in particular to the SMC door frame of a double-leaf, thresholdless protective airtight door. Background Technology

[0002] Protective airtight doors are doors installed at the entrances and exits of civil protection projects. They generally include single-leaf and double-leaf protective airtight doors. Protective airtight doors should be able to block shock waves and meet corresponding resistance requirements. SMC composite material is a type of fiberglass, mainly composed of GF (special yarn), MD (filler), and various additives. SMC material has excellent corrosion resistance, is lightweight, and offers advantages such as easy and flexible engineering design. Its mechanical properties are comparable to some metal materials. By adjusting the formula, SMC composite materials can possess a series of advantages such as antistatic properties, flame retardancy, good thermal stability, high strength, corrosion resistance, long service life, and high production efficiency.

[0003] The existing protective airtight doors are mostly made of steel frames, and are mostly integral frames, which are heavy and inconvenient to transport and install. Utility Model Content

[0004] The purpose of this utility model is to provide a double-leaf thresholdless protective airtight door frame made of SMC composite material. The door frame has a split structure, is lightweight, and is convenient for transportation and installation.

[0005] To achieve the above and other related objectives, this utility model provides a double-leaf thresholdless protective airtight door frame (SMC), comprising: a top frame, two side frames, and a bottom frame. The top frame includes a first top frame, a second top frame, a third top frame, and a fourth top frame. One end of the first top frame has a first connecting structure, and the other end of the first top frame overlaps with one end of the second top frame. The other end of the second top frame overlaps with one end of the third top frame, and the other end of the third top frame overlaps with one end of the fourth top frame. The other end of the fourth top frame has a second connecting structure. The two side frames are symmetrically arranged on the top frame. At both ends, the top of each of the two side frames is provided with a third connecting structure, which is respectively inserted into the first connecting structure and the second connecting structure. The top of each of the two side frames is respectively engaged with the ends of the first top frame and the fourth top frame. The bottom frame includes two first bottom frames and two second bottom frames. One end of each of the two first bottom frames is respectively engaged with the bottom of the two side frames, and one end of each of the two second bottom frames is engaged with the other end of each of the two first bottom frames. The top frame and the two side frames are provided with a plurality of bolt holes.

[0006] In one example of the SMC door frame of the double-leaf thresholdless protective airtight door of this utility model, the first top frame includes a first outer frame plate and a first inner frame plate. The bottom of the first outer frame plate is vertically fixedly connected to one side of the first inner frame plate. The angle formed between the end face of the first outer frame plate facing the side frame and the top surface is 40-50°. The first inner frame plate has a first connecting structure at one end facing the side frame, and the first top frame has a first overlapping part at one end facing the second top frame.

[0007] In an example of the SMC door frame of the double-leaf thresholdless protective airtight door of this utility model, the first connecting structure includes a first wedge block disposed at the end of the first inner frame plate, a first protrusion provided on the side of the first wedge block away from the first outer frame plate, the surface of the first protrusion facing the side frame being flat, and the surface of the first protrusion away from the side frame being arc-shaped, a third connecting structure being provided with a first wedge groove that mates with the first wedge block, the first wedge block being inserted into the first wedge groove, and an arc-shaped surface that mates with the first protrusion on the third connecting structure below the first wedge groove.

[0008] In one example of the SMC door frame of the double-leaf thresholdless protective airtight door of this utility model, the second top frame includes a second outer frame plate and a second inner frame plate. The bottom of the second outer frame plate is vertically fixedly connected to one side of the second inner frame plate, and a second overlapping part is provided at one end of the second top frame facing the third top frame.

[0009] In one example of the SMC door frame of the double-leaf thresholdless protective airtight door of this utility model, the third top frame includes a third outer frame plate and a third inner frame plate. The bottom of the third outer frame plate is vertically fixedly connected to one side of the third inner frame plate, and the end of the third top frame facing the fourth top frame is provided with a third overlapping part.

[0010] In one example of the SMC door frame of the double-leaf thresholdless protective airtight door of this utility model, the fourth top frame includes a fourth outer frame plate and a fourth inner frame plate. The bottom of the fourth outer frame plate is vertically fixedly connected to one side of the fourth inner frame plate. The angle formed between the end face of the fourth outer frame plate facing the side frame and the top face is 40-50°. The end of the fourth inner frame plate facing the side frame is connected by the second connection structure.

[0011] In one example of the SMC door frame of the double-leaf thresholdless protective airtight door of this utility model, the second connecting structure includes a second wedge block disposed at the end of the fourth inner frame plate. The second wedge block has a second protrusion on the side away from the fourth outer frame plate. The surface of the second protrusion facing the side frame is flat, and the surface of the second protrusion away from the side frame is arc-shaped. The third connecting structure is provided with a second wedge groove that cooperates with the second wedge block. The second wedge block is inserted into the second wedge groove. The third connecting structure below the second wedge groove is provided with an arc-shaped surface that cooperates with the second protrusion.

[0012] In one example of the SMC door frame of the double-leaf thresholdless protective airtight door of this utility model, the side frame includes a fifth outer frame plate and a fifth inner frame plate. One side of the fifth inner frame plate is vertically fixedly connected to the side of the fifth outer frame plate facing the top frame. The top of the fifth outer frame plate is engaged with the end of the first outer frame plate or the fourth outer frame plate. The top of the fifth inner frame plate is provided with the third connecting structure.

[0013] In one example of the SMC door frame of the double-leaf thresholdless protective airtight door of this utility model, the fifth outer frame plate is provided with a fourth overlapping part on the side facing the first outer frame plate or the fourth outer frame plate. The fourth overlapping part cooperates with the surface of the first outer frame plate or the fourth outer frame plate facing the fifth inner frame plate. The fifth inner frame plate is provided with a fifth overlapping part on the side facing the first inner frame plate or the fourth inner frame plate. The fifth overlapping part cooperates with the top surface of the first inner frame plate or the fourth inner frame plate.

[0014] In one example of the SMC door frame of the double-leaf thresholdless protective airtight door of this utility model, the top and bottom of the fifth outer frame plate away from the top frame are respectively provided with a first wing plate, and the two first wing plates are provided with a number of bolt holes.

[0015] In one example of the SMC door frame of the double-leaf thresholdless protective airtight door of this utility model, two parallel first strip plates are provided on the outer wall of the top frame along the extension direction of the top frame, and two parallel second strip plates are provided on the outer walls of the two side frames along the extension direction of the side frames. The two ends of the two first strip plates respectively cooperate with the top ends of the four second strip plates.

[0016] In one example of the SMC door frame of the double-leaf thresholdless protective airtight door of this utility model, the bottom frame is provided with a number of mounting bolts, and the two first bottom frames are provided with end plates at one end connected to the side frame. The bottom of the side frame is provided with end plate mounting grooves that cooperate with the end plates, and the end plates are installed in the end plate mounting grooves.

[0017] This utility model relates to a double-leaf, threshold-free, protective airtight door with an SMC door frame. The frame consists of a top frame, two side frames, and a bottom frame. The top frame comprises a first top frame, a second top frame, a third top frame, and a fourth top frame. The bottom frame includes two first bottom frames and two second bottom frames. During installation, the top frame, two side frames, and bottom frame can be assembled on-site to form a relatively stable installation structure. Then, bolts are used to fix the door frame to the concrete wall through bolt holes on the top frame and two side frames, completing the installation. This utility model is made of SMC composite material and has a modular structure, making it lightweight, convenient for transportation and installation, and exhibiting good structural stability, high structural strength, good corrosion resistance, and a long service life. Attached Figure Description

[0018] Figure 1 This is a perspective view of an embodiment of the SMC door frame of the double-leaf thresholdless protective airtight door of this utility model;

[0019] Figure 2 This is a front view of an embodiment of the SMC door frame of the double-leaf thresholdless protective airtight door of this utility model;

[0020] Figure 3 This is a rear view of an embodiment of the SMC door frame of the double-leaf thresholdless protective airtight door of this utility model;

[0021] Figure 4 This is a rear view of the first top frame in one embodiment of the SMC door frame of the double-leaf thresholdless protective airtight door of this utility model;

[0022] Figure 5 This is a rear view of the second top frame in one embodiment of the SMC door frame of the double-leaf thresholdless protective airtight door of this utility model;

[0023] Figure 6 This is a rear view of the fourth top frame in one embodiment of the SMC door frame of the double-leaf thresholdless protective airtight door of this utility model;

[0024] Figure 7 This is a rear view of the side frame in one embodiment of the SMC door frame of the double-leaf thresholdless protective airtight door of this utility model;

[0025] Figure 8 This is a partial structural diagram of the side frame in one embodiment of the SMC door frame of the double-leaf thresholdless protective airtight door of this utility model;

[0026] Figure 9 This is a schematic diagram of the structure of the first bottom frame in one embodiment of the SMC door frame of the double-leaf thresholdless protective airtight door of this utility model.

[0027] Component designation:

[0028] 100. Top frame; 110. First top frame; 111. First connecting structure; 112. First outer frame plate; 113. First inner frame plate; 114. First overlap; 115. First wedge block; 120. Second top frame; 121. Second outer frame plate; 122. Second inner frame plate; 123. Second overlap; 130. Third top frame; 140. Fourth top frame; 141. Second connecting structure; 142. Fourth outer frame plate; 143. 144. Second wedge block; 150. First strip plate; 200. Side frame; 210. Third connecting structure; 220. Fifth outer frame plate; 221. Fourth overlapping part; 222. First wing plate; 230. Fifth inner frame plate; 231. Fifth overlapping part; 240. Second strip plate; 300. Bottom frame; 310. First bottom frame; 311. End plate; 320. Second bottom frame; 330. Mounting bolt; 400. Bolt hole. Detailed Implementation

[0029] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. It should also be understood that the terminology used in the embodiments of this utility model is for describing specific implementation schemes and not for limiting the scope of protection of this utility model. Test methods in the following embodiments that do not specify specific conditions are generally performed under conventional conditions or according to the conditions recommended by the respective manufacturers.

[0030] When numerical ranges are given in the embodiments, it should be understood that, unless otherwise specified in this invention, both endpoints of each numerical range and any value between the two endpoints may be selected. Unless otherwise defined, all technical and scientific terms used in this invention, as well as the prior art known to those skilled in the art and the description of this invention, may be implemented using any prior art methods, equipment, and materials similar to or equivalent to those in the embodiments of this invention.

[0031] Please see Figures 1 to 3This utility model provides a double-leaf thresholdless protective airtight door SMC door frame, which includes: a top frame 100, two side frames 200 and a bottom frame 300. The top frame 100 includes a first top frame 110, a second top frame 120, a third top frame 130 and a fourth top frame 140. One end of the first top frame 110 is provided with a first connecting structure 111. The other end of the first top frame 110 overlaps with one end of the second top frame 120. The other end of the second top frame 120 overlaps with one end of the third top frame 130. The other end of the third top frame 130 overlaps with one end of the fourth top frame 140. The other end of the fourth top frame 140 is provided with a second connecting structure 141. Two side frames 200 are symmetrically arranged at both ends of the top frame 100. Each side frame 200 has a third connecting structure 210 at its top. The two third connecting structures 210 are respectively inserted into the first connecting structure 111 and the second connecting structure 141. The tops of the two side frames 200 respectively mate with the ends of the first top frame 110 and the fourth top frame 140. The bottom frame 300 includes two first bottom frames 310 and two second bottom frames 320. One end of each of the two first bottom frames 310 is snapped into the bottom of one of the two side frames 200, and one end of each of the two second bottom frames 320 mates with the other end of each of the two first bottom frames 310. The top frame 100 and the two side frames 200 are provided with a plurality of bolt holes 400.

[0032] When installing this utility model, the first top frame 110, the second top frame 120, the third top frame 130, and the fourth top frame 140 can be spliced ​​together at the installation site to form a top frame 100. The first connecting structure 111 and the second connecting structure 141 are then inserted into the two third connecting structures 210 to complete the splicing of the top frame 100 with the two side frames 200. Then, the two first bottom frames 310 and the two second bottom frames 320 are spliced ​​together to form a bottom frame 300. Finally, the ends of the two first bottom frames 310 are respectively engaged with the bottoms of the two side frames 200 to form a relatively stable installation structure, thus completing the splicing of the door frame. The above splicing operation can be performed within the pre-reserved installation opening in the concrete wall. During the splicing process, preliminary fixing can be achieved using several bolt holes 400 on the top frame 100 and the two side frames 200. After splicing, final fixing is performed to complete the installation of the door frame. It should be noted that the number and position of the bolt holes 400 can be set according to the size of the door frame and the installation requirements. Holes can be drilled in the concrete wall, and sleeves for installation can be pre-embedded during pouring to facilitate the installation of the door frame. There is no specific installation sequence for the components of this invention; installation can be carried out according to the requirements of the construction site.

[0033] Please see Figure 3 and Figure 4In one example of the SMC door frame of the double-leaf thresholdless protective airtight door of this utility model, the first top frame 110 includes a first outer frame plate 112 and a first inner frame plate 113. The bottom of the first outer frame plate 112 is vertically fixedly connected to one side of the first inner frame plate 113. The angle formed between the end face of the first outer frame plate 112 facing the side frame 200 and the top face is 40-50°. The first inner frame plate 113 has a first connecting structure 111 at one end facing the side frame 200. The first top frame 110 has a first overlapping part 114 at one end facing the second top frame 120. The first connecting structure 111 includes a first wedge block 115 disposed at the end of the first inner frame plate 113. The first wedge block 115 has a first protrusion on the side away from the first outer frame plate 112. The surface of the first protrusion facing the side frame 200 is flat, and the surface of the first protrusion away from the side frame 200 is arc-shaped. A third connecting structure 210 is provided with a first wedge groove that cooperates with the first wedge block 115. The first wedge block 115 is inserted into the first wedge groove. The third connecting structure 210 below the first wedge groove is provided with an arc-shaped surface that cooperates with the first protrusion.

[0034] Please see Figure 5 In one example of the SMC door frame of the double-leaf thresholdless protective airtight door of this utility model, the second top frame 120 includes a second outer frame plate 121 and a second inner frame plate 122. The bottom of the second outer frame plate 121 is vertically fixedly connected to one side of the second inner frame plate 122. The second top frame 120 is provided with a second overlapping portion 123 at one end facing the third top frame 130. The third top frame 130 includes a third outer frame plate and a third inner frame plate. The bottom of the third outer frame plate is vertically fixedly connected to one side of the third inner frame plate. The third top frame 130 is provided with a third overlapping portion at one end facing the fourth top frame 140.

[0035] Please see Figure 3 and Figure 6In one example of the SMC door frame of the double-leaf thresholdless protective airtight door of this utility model, the fourth top frame 140 includes a fourth outer frame plate 142 and a fourth inner frame plate 143. The bottom of the fourth outer frame plate 142 is vertically fixedly connected to one side of the fourth inner frame plate 143. The angle formed between the end face of the fourth outer frame plate 142 facing the side frame 200 and the top face is 40-50°. The second connecting structure 141 is located at one end of the fourth inner frame plate 143 facing the side frame 200. The second connecting structure 141 includes a second wedge block 144 disposed at the end of the fourth inner frame plate 143. The second wedge block 144 has a second protrusion on the side away from the fourth outer frame plate 142. The surface of the second protrusion facing the side frame 200 is flat, and the surface of the second protrusion away from the side frame 200 is arc-shaped. The third connecting structure 210 is provided with a second wedge groove that cooperates with the second wedge block 144. The second wedge block 144 is inserted into the second wedge groove. The third connecting structure 210 below the second wedge groove is provided with an arc-shaped surface that cooperates with the second protrusion.

[0036] Please see Figure 7 and Figure 8 In one example of the SMC door frame of the double-leaf thresholdless protective airtight door of this utility model, the side frame 200 includes a fifth outer frame plate 220 and a fifth inner frame plate 230. One side of the fifth inner frame plate 230 is vertically fixedly connected to the side of the fifth outer frame plate 220 facing the top frame 100. The top of the fifth outer frame plate 220 is engaged with the end of the first outer frame plate 112 or the fourth outer frame plate 142. The top of the fifth inner frame plate 220 is provided with the third connecting structure 210. The fifth outer frame plate 220 has a fourth overlapping portion 221 on the side facing the first outer frame plate 112 or the fourth outer frame plate 142. The fourth overlapping portion 221 mates with the surface of the first outer frame plate 112 or the fourth outer frame plate 142 facing the fifth inner frame plate 230. The fifth inner frame plate 230 has a fifth overlapping portion 231 on the side facing the first inner frame plate 112 or the fourth inner frame plate 142. The fifth overlapping portion 231 mates with the top surface of the first inner frame plate 112 or the fourth inner frame plate 142. The top and bottom of the fifth outer frame plate 220 on the side away from the top frame 100 are respectively provided with a first wing plate 222, and the two first wing plates 222 are provided with a plurality of bolt holes 400.

[0037] Please see Figure 2 and Figure 9In one example of the SMC door frame of the double-leaf thresholdless protective airtight door of this utility model, two parallel first strip plates 150 are provided on the outer wall of the top frame 100 along the extension direction of the top frame 100, and two parallel second strip plates 240 are provided on the outer walls of the two side frames 200 along the extension direction of the side frames 200. The two ends of the two first strip plates 150 respectively cooperate with the top ends of the four second strip plates 240. The bottom frame 300 is provided with a plurality of mounting bolts 330, and the end of the two first bottom frames 310 connected to the side frames 200 is provided with an end plate 311. The bottom of the side frame 200 is provided with an end plate mounting groove that cooperates with the end plate 311, and the end plate 311 is installed in the end plate mounting groove. The first strip plates 150 and the second strip plates 240 are used to install sealing strips and other sealing components, and the plurality of mounting bolts 330 are used to cooperate with the installation of the protective airtight door.

[0038] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A twin leaf, no threshold, security, sealed door (SMC door frame) characterized in that, The utility model relates to a kind of frame structures, including: Top frame, the top frame includes first top frame, second top frame, third top frame and fourth top frame, one end of the first top frame is equipped with first connecting structure, the other end of the first top frame is overlapped with one end of the second top frame, the other end of the second top frame is overlapped with one end of the third top frame, the other end of the third top frame is overlapped with one end of the fourth top frame, the other end of the fourth top frame is equipped with second connecting structure; Two side frames, two side frames are symmetrically arranged at both ends of the top frame, the top of two side frames is equipped with third connecting structure, two third connecting structures are respectively inserted with the first connecting structure, the second connecting structure, and the top of two side frames is matched with the end of the first top frame, the fourth top frame respectively; Bottom frame, the bottom frame includes two first bottom frames and two second bottom frames, one end of two first bottom frames is respectively clamped with the bottom of two side frames, one end of two second bottom frames is matched, and the other end of two second bottom frames is respectively matched with the other end of two first bottom frames. Wherein, the top frame and two side frames are equipped with a plurality of bolt holes.

2. The SMC door frame for a double-leaf door without a threshold according to claim 1, characterized in that, The first top frame includes first outer frame plate and first inner frame plate, the bottom of the first outer frame plate is vertically fixedly connected with one side of the first inner frame plate, the included angle between the end face of the side of the first outer frame plate and the top face is 40-50 °, the first connecting structure is arranged at one end of the first inner frame plate towards the side, and the first top frame is equipped with first lap portion towards one end of the second top frame.

3. The SMC door frame for a double-leaf, no threshold, security, closed door of claim 2, wherein, The first connecting structure includes first wedge-shaped block arranged at the end of the first inner frame plate, the side, away from the first outer frame plate, of the first wedge-shaped block is equipped with first protruding portion, the surface of the side of the first protruding portion towards the side is plane, the surface of the side, away from the side, of the first protruding portion is arc surface, one third connecting structure is equipped with first wedge-shaped groove matched with the first wedge-shaped block, the first wedge-shaped block is inserted with the first wedge-shaped groove, and the third connecting structure on the lower side of the first wedge-shaped groove is equipped with arc surface matched with the first protruding portion.

4. The SMC door frame for a double-leaf, no threshold, security, closed door of claim 2, wherein, The second top frame includes second outer frame plate and second inner frame plate, the bottom of the second outer frame plate is vertically fixedly connected with one side of the second inner frame plate, the second top frame is equipped with second lap portion towards one end of the third top frame, and the third top frame includes third outer frame plate and third inner frame plate.

5. The SMC door frame for a double leaf no threshold security door of claim 2, wherein, The fourth top frame includes fourth outer frame plate and fourth inner frame plate, the bottom of the fourth outer frame plate is vertically fixedly connected with one side of the fourth inner frame plate, the included angle between the end face of the side of the fourth outer frame plate and the top face is 40-50 °, and the second connecting structure is arranged at one end of the fourth inner frame plate towards the side.

6. The SMC door frame for a double-leaf, no threshold, security, closed door of claim 5, wherein, The second connecting structure comprises a second wedge-shaped block arranged at the end of the fourth inner frame plate, a second protruding part is arranged at the side of the second wedge-shaped block away from the fourth outer frame plate, the side of the second protruding part facing the side surface of the side frame is a plane, and the side of the second protruding part away from the side surface of the side frame is an arc surface.

7. The SMC door frame for a double leaf non- threshold security door according to claim 5, wherein, The side frame comprises a fifth outer frame plate and a fifth inner frame plate, one side of the fifth inner frame plate is fixedly connected with the fifth outer frame plate perpendicularly towards the side of the top frame, the top of the fifth outer frame plate is matched with the end of the first outer frame plate or the fourth outer frame plate, and the top of the fifth inner frame plate is provided with the third connecting structure.

8. The SMC door frame for a double-leaf, no threshold, security, closed door of claim 7, wherein, The side of the fifth outer frame plate facing the first outer frame plate or the fourth outer frame plate is provided with a fourth lap joint part matched with the surface of the side of the first outer frame plate or the fourth outer frame plate facing the fifth inner frame plate, the side of the fifth inner frame plate facing the first inner frame plate or the fourth inner frame plate is provided with a fifth lap joint part matched with the top surface of the first inner frame plate or the fourth inner frame plate, and the top and the bottom of the side of the fifth outer frame plate away from the top frame are respectively provided with a first wing plate.

9. The SMC door frame for a double leaf, no threshold, security door, as claimed in claim 1, wherein, The outer wall of the top frame is provided with two first strip plates arranged in parallel along the extension direction of the top frame, the outer wall of each side frame is provided with two second strip plates arranged in parallel along the extension direction of the side frame, and the two ends of the two first strip plates are respectively matched with the top ends of the four second strip plates.

10. The SMC door frame for a double leaf, no threshold, security door of claim 1, wherein, The bottom frame is provided with a plurality of mounting bolts, one end of each first bottom frame connected with the side frame is provided with an end plate, the bottom of the side frame is provided with an end plate mounting groove matched with the end plate, and the end plate is arranged in the end plate mounting groove.

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