Polyurethane composite door frame

Abstract

The utility model discloses a polyurethane composite material door frame, which relates to the technical field of energy-saving door frames, and comprises two vertical columns, an upper cross beam arranged between the upper ends of the two vertical columns, a lower cross beam arranged between the lower ends of the two vertical columns, and insertion grooves vertically arranged on the front and rear side surfaces of the vertical columns, c-shaped stand column protection pieces matched with the outer side faces of the stand columns are arranged on the outer side faces of the stand columns, insertion strips are arranged at the positions, corresponding to the insertion grooves, of the stand column protection pieces, the insertion strips are inserted into the insertion grooves, and reinforcing assemblies used for improving the connection firmness of the stand column protection pieces are arranged on the right side face of the left stand column and the left side face of the right stand column. The stand column protection piece is arranged on the stand column, the resistance of the stand column to concentrated acting force such as collision of hard objects is improved, the lower cross beam protection piece is arranged on the lower cross beam, the protection shell is arranged on the lower cross beam protection piece, and the treading protection structure is arranged on the lower cross beam. And high-strength protection is provided for the lower cross beam which is extremely easy to damage in daily use.

Description

Technical Field

[0001] The utility model relates to the technical field of energy-saving door frames, in particular to a polyurethane composite material door frame. Background Art

[0002] A polyurethane composite door frame is a door frame made of polyurethane and other reinforcing materials such as fiberglass. It is lighter, stronger and more durable. Polyurethane composite materials have poor thermal conductivity, which helps reduce energy consumption for heating and cooling. However, when a polyurethane composite door frame is hit by a hard object, the force is too concentrated, and the door frame is prone to partial damage, making it difficult to repair.

[0003] Based on this, a polyurethane composite door frame is now provided, which can optimize the problems existing in the existing devices. Utility Model Content

[0004] The utility model aims to provide a polyurethane composite door frame to solve the problems in the background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A polyurethane composite door frame comprises two vertically arranged columns, an upper crossbeam is provided between the upper ends of the two columns, a lower crossbeam is provided between the lower ends of the two columns, plug-in grooves are vertically provided on the front and rear side surfaces of the columns, a C-shaped column protection sheet matching the outer side surface of the column is provided on the outer side surface of the column, a plug-in strip is provided at the position of the column protection sheet corresponding to the plug-in slot, the plug-in strip is plugged into the plug-in slot, a reinforcement component for improving the connection firmness of the column protection sheet is provided on the right side surface of the left column and the left side surface of the right column, and a trampling protection structure is provided on the lower crossbeam.

[0007] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0008] In an optional scheme: the reinforcement component includes four annular through grooves arranged on the right side surface of the left column and the left side surface of the right column, and the clamping sleeve is inserted in the annular through groove. The clamping sleeve is provided with an outer clamping block and an inner clamping block on the inner side of the column. The outer clamping block is arranged on the outer side of the clamping sleeve and contacts with the inner side surface of the column, and the inner clamping block is arranged on the inner side of the clamping sleeve. A clamping block is inserted into the inner side of the clamping sleeve, and the clamping block passes through the column protective plate. The clamping block is spindle-shaped on the inner side of the column.

[0009] In an optional solution: a pad is provided between the end of the connecting block located outside the column and the column protection sheet.

[0010] In an optional solution: the stepping protection structure includes a C-shaped lower beam protection plate arranged on the lower beam to match the outer side surface of the lower beam, lower beam protection plate extension blocks are arranged at the left and right ends of the lower beam protection plate, a protective shell matching the shape of the outer side surface of the lower beam protection plate is arranged on the outside of the lower beam protection plate, protective shell extension blocks are arranged at the left and right ends of the protective shell, and locking modules are respectively penetrated at the left and right ends of the lower beam.

[0011] In an optional solution: the locking module includes fixing bolts penetrating the lower cross beam protection sheet extension block, the protection shell extension block and the lower cross beam at the left and right ends of the lower cross beam, and the fixing nuts are threadedly connected to the fixing bolts.

[0012] In an optional solution: the columns, upper beams and lower beams are all made of glass fiber polyurethane composite materials.

[0013] In an optional solution: the column protection plate and the lower beam protection plate are polyurethane elastomers.

[0014] In an optional solution: the protective shell is made of SUS301 material.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] The utility model improves the resistance of the column to concentrated forces such as collision with hard objects by arranging a column protection sheet on the column.

[0017] The utility model provides high-strength protection for the lower cross beam which is very easy to be damaged in daily use by arranging a lower cross beam protection sheet on the lower cross beam and arranging a protection shell on the lower cross beam protection sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model.

[0019] Figure 2 It is a schematic diagram of the plug-in slot of the utility model.

[0020] Figure 3 It is a front side cross-sectional schematic diagram of the reinforcement component of the utility model.

[0021] Figure 4 It is a schematic diagram of the upper side cross-section of the reinforcement component of the utility model.

[0022] Figure 5 This is a schematic diagram of the utility model trample protection structure

[0023] Figure 6 For this utility model Figure 5 A partial enlarged view of middle A.

[0024] Annotation of reference numerals: 101, vertical column; 102, upper cross beam; 103, lower cross beam; 201, vertical column protection piece; 202, insertion slot; 203, insertion bar; 204, annular through slot; 205, clamping sleeve; 206, outer clamping block; 207, inner clamping block; 208, clamping block; 209, backing plate; 301, lower cross beam protection piece; 302, lower cross beam protection piece extension block; 303, protective shell; 304, protective shell extension block; 305, fixing bolt; 306, fixing nut. Detailed implementation mode

[0025] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0026] In one embodiment, as Figures 1 - 6 shown, a polyurethane composite material door frame includes two vertically arranged vertical columns 101. An upper cross beam 102 is provided between the upper ends of the two vertical columns 101, and a lower cross beam 103 is provided between the lower ends of the two vertical columns 101. Insertion slots 202 are vertically provided on the front and rear side surfaces of the vertical column 101. A C-shaped vertical column protection piece 201 matching the outer side surface of the vertical column 101 is provided on the outer side surface of the vertical column 101. An insertion bar 203 is provided on the vertical column protection piece 201 corresponding to the position of the insertion slot 202, and the insertion bar 203 is inserted into the insertion slot 202. Reinforcement components for improving the connection firmness of the vertical column protection piece 201 are provided on the right side surface of the left vertical column 101 and the left side surface of the right vertical column 101, and a stepping protection structure is provided on the lower cross beam 103.

[0027] In this embodiment, the vertical column protection piece 201 provided outside the vertical column 101 provides a protection function for the vertical column 101, improves the resistance of the vertical column 101 to concentrated acting forces such as hard object bumps, etc. The reinforcement component increases the connection firmness and fitting degree between the vertical column protection piece 201 and the vertical column 101, and the stepping protection structure is used to provide high-strength protection for the lower cross beam 103.

[0028] In one embodiment, as Figure 3 and Figure 4As shown, the reinforcement component includes four annular through grooves 204 provided on the right side surface of the left vertical column 101 and the left side surface of the right vertical column 101. A clamping sleeve 205 is inserted into the annular through groove 204. An outer clamping block 206 and an inner clamping block 207 are provided on the clamping sleeve 205 inside the vertical column 101. The outer clamping block 206 is arranged on the outer side of the clamping sleeve 205 and contacts the inner side surface of the vertical column 101. The inner clamping block 207 is arranged on the inner side of the clamping sleeve 205. A clamping block 208 is inserted into the inner side of the clamping sleeve 205. The clamping block 208 penetrates through the vertical column protection piece 201. The part of the clamping block 208 inside the vertical column 101 is spindle-shaped. The outer clamping block 206 is clamped on the inner surface of the vertical column 101 to fix the clamping sleeve 205 at the annular through groove 204 of the vertical column 101. The clamping block 208 passes through the vertical column protection piece 201 and is inserted into the clamping sleeve 205. The inner clamping block 207 on the clamping sleeve 205 presses the tapered surface of the clamping block 208, so that the clamping block 208 presses the vertical column protection piece 201 tightly on the surface of the vertical column 101.

[0029] In one embodiment, as Figure 3 and Figure 4 shown, a spacer plate 209 is provided between the end of the clamping block 208 located outside the vertical column 101 and the vertical column protection piece 201, which expands the action range of the clamping block 208, improves the fitting degree of the vertical column protection piece 201, and prevents the vertical column protection piece 201 from being damaged due to the over-concentration of the pressure of the clamping block 208 on the vertical column protection piece 201.

[0030] In one embodiment, as Figure 5 and Figure 6 shown, the stepping protection structure includes a C-shaped lower beam protection piece 301 provided on the lower beam 103 and matching the outer side surface of the lower beam 103. Lower beam protection piece extension blocks 302 are provided at the left and right ends of the lower beam protection piece 301. A protective shell 303 matching the outer side surface shape of the lower beam protection piece 301 is provided outside the lower beam protection piece 301. Protective shell extension blocks 304 are provided at the left and right ends of the protective shell 303. Locking modules are respectively provided through the left and right ends of the lower beam 103. The protective shell 303 provides the outermost layer of protection against scratches from hard objects such as stones on the sole of a shoe. The lower beam protection piece 301 is protected by the protective shell 303. The lower beam protection piece 301 can deform itself. When the protective shell 303 is subjected to a concentrated acting force such as being knocked by a hard object, the deformation of the lower beam protection piece 301 causes the acting force to have a larger acting range when finally transmitted to the lower beam 103, protecting the lower beam 103.

[0031] In one embodiment, as Figure 6As shown, the locking module includes fixing bolts 305 that penetrate through the extension blocks 302 of the lower crossbeam protective sheet, the extension blocks 304 of the protective shell, and the lower crossbeam 103 at the left and right ends of the lower crossbeam 103. A fixing nut 306 is threadedly connected to the fixing bolt 305. Through the cooperation of the fixing bolt 305 and the fixing nut 306, the lower crossbeam protective sheet 301 and the protective shell 303 are fixed on the lower crossbeam 103.

[0032] In one embodiment, as Figure 1 and Figure 5 shown, the columns 101, the upper crossbeam 102, and the lower crossbeam 103 are all made of fiberglass polyurethane composite material, which is lighter in weight, higher in strength, and stronger in heat insulation, facilitating the reduction of energy consumption for heating and cooling.

[0033] In one embodiment, as Figure 2 and Figure 5 shown, the column protective sheet 201 and the lower crossbeam protective sheet 301 are polyurethane elastomers, with high elasticity, high wear resistance, high tensile and tear resistance, expanding the acting range of the concentrated force on the door frame and improving the resistance of the door frame to hard object bumps.

[0034] In one embodiment, as Figure 5 shown, the protective shell 303 is made of SUS301 material, with high strength and corrosion resistance, providing high-strength protection for the lower crossbeam 103 that is extremely vulnerable to damage during daily use and improving the durability of the door frame.

[0035] The above embodiment discloses a polyurethane composite material door frame. Among them, the insertion strip 203 on the column protective sheet 201 is pressed into the insertion slot 202 to achieve preliminary fixation. Then, the clamping sleeve 205 is pressed into the annular through groove 204, and the outer clamping block 206 is stuck on the inner surface of the column 101 to fix the clamping sleeve 205 at the annular through groove 204 of the column 101. The clamping block 208 passes through the backing plate 209 and the column protective sheet 201 and is inserted into the clamping sleeve 205. The inner clamping block 207 on the clamping sleeve 205 presses the conical surface of the clamping block 208, causing the clamping block 208 to press the column protective sheet 201 tightly against the surface of the column 101, increasing the firmness and fitting degree of the connection between the column protective sheet 201 and the column 101. The lower crossbeam protective sheet 301 and the protective shell 303 are fixed on the lower crossbeam 103 through the cooperation of the fixing bolt 305 and the fixing nut 306. The protective shell 303 provides the outermost layer of protection against scratches from hard objects such as stones on the sole. The lower crossbeam protective sheet 301 is protected by the protective shell 303. The lower crossbeam protective sheet 301 can deform itself. When the protective shell 303 receives a concentrated force such as a hard object bump, the deformation of the lower crossbeam protective sheet 301 causes the acting range of the force to become larger when it is finally transmitted to the lower crossbeam 103, protecting the lower crossbeam 103.

[0036] As described above, it is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A polyurethane composite door frame, comprising two vertically arranged columns (101), an upper cross beam (102) is arranged between the upper ends of the two columns (101), and a lower cross beam (103) is arranged between the lower ends of the two columns (101); It is characterized in that Insertion grooves (202) are vertically arranged on the front and rear side surfaces of the columns (101). A C-shaped column protection piece (201) matching the outer side surface of the column (101) is arranged on the outer side surface of the column (101). Insertion strips (203) are arranged at positions of the column protection piece (201) corresponding to the insertion grooves (202). The insertion strips (203) are inserted into the insertion grooves (202). Reinforcement components for improving the connection firmness of the column protection piece (201) are arranged on the right side surface of the left column (101) and the left side surface of the right column (101). A stepping protection structure is arranged on the lower cross beam (103).

2. The polyurethane composite door frame according to claim 1, characterized in that, The reinforcement components include four annular through grooves (204) arranged on the right side surface of the left column (101) and the left side surface of the right column (101). A clamping sleeve (205) is inserted into the annular through grooves (204). Outer clamping blocks (206) and inner clamping blocks (207) are arranged on the clamping sleeve (205) on the inner side of the column (101). The outer clamping blocks (206) are arranged on the outer side of the clamping sleeve (205) and are in contact with the inner side surface of the column (101). The inner clamping blocks (207) are arranged on the inner side of the clamping sleeve (205). A clamping block (208) is inserted into the inner side of the clamping sleeve (205). The clamping block (208) penetrates through the column protection piece (201). The part of the clamping block (208) on the inner side of the column (101) is spindle-shaped.

3. The polyurethane composite door frame according to claim 2, characterized in that, A backing plate (209) is arranged between the end of the clamping block (208) located on the outer side of the column (101) and the column protection piece (201).

4. A polyurethane composite door frame according to claim 2, characterized in that, The stepping protection structure includes a C-shaped lower cross beam protection piece (301) arranged on the lower cross beam (103) and matching the outer side surface of the lower cross beam (103). Lower cross beam protection piece extension blocks (302) are arranged at the left and right ends of the lower cross beam protection piece (301). A protective shell (303) matching the outer side surface shape of the lower cross beam protection piece (301) is arranged outside the lower cross beam protection piece (301). Protective shell extension blocks (304) are arranged at the left and right ends of the protective shell (303). Locking modules are respectively arranged through the left and right ends of the lower cross beam (103).

5. A polyurethane composite door frame according to claim 4, characterized in that, The locking modules include fixing bolts (305) passing through the lower cross beam protection piece extension blocks (302), the protective shell extension blocks (304) and the lower cross beam (103) at the left and right ends of the lower cross beam (103). Fixing nuts (306) are threadedly connected to the fixing bolts (305).

6. The polyurethane composite door frame according to claim 1, characterized in that, The columns (101), the upper cross beam (102) and the lower cross beam (103) are all glass fiber polyurethane composite materials.

7. The polyurethane composite door frame according to claim 4, wherein, The column protection piece (201) and the lower cross beam protection piece (301) are polyurethane elastomers.

8. A polyurethane composite door frame according to claim 4, characterized in that, The protective shell (303) is made of SUS301 material.

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