Door frame with adjustable thickness

Abstract

The present invention relates to a door frame with adjustable thickness, which comprises a door-frame body in a "door" shape. The door-frame body is composed of an upper door frame and two side door frames. The upper door frame and the side door frames of the door-frame body are respectively formed by the cooperation and connection of fixing plate members, adjustable plate members and adjustment guiding assemblies with the same structure. The upper right part of the fixing plate member is matched with the left side of the adjustable plate member and connected together through multiple pairs of adjustment guiding assemblies. The adjustment guiding assembly is composed of two bending sheet metal parts with the same structure. One of the bending sheet metal parts is fixedly connected to the fixing plate member, and the other bending sheet metal part is fixedly connected to the adjustable plate member. The ends of the two bending sheet metal parts are relatively matched and can slide. The present invention can adjust the thickness of the door frame at the installation site to match the thickness of the on-site wall, which can not only ensure the smooth installation of the door frame, but also reduce the production batches of enterprises.

Description

Technical Field

[0001] The present invention relates to doors and windows of houses, and particularly to a door frame with adjustable thickness. Background Art

[0002] At present, most steel door frames on the market are only suitable for a single wall thickness during installation, that is, one door frame matches one wall thickness. However, during the installation of the door frame, it often happens that the door frame does not match the wall thickness. Some need a door frame with a thickness of 15 cm, some need a door frame with a thickness of 20 cm, and so on. Once the wall thickness changes, the installation cannot be directly carried out. Due to the lack of thickness adjustment function, it cannot be adjusted on-site during installation, resulting in difficult door frame installation. Changing the wall thickness is relatively difficult, and only a door frame suitable for the wall thickness can be selected additionally. This leads to many production batches of enterprises, which is not conducive to mass production. Therefore, it is necessary to develop a door frame with adjustable thickness to meet the requirements of walls with different thicknesses.

[0003] CN 202194496U discloses "a combined door frame with adjustable thickness", which includes a movable door frame and a fixed door frame. At least two reinforcing plates are provided on the inner sides of both sides of the fixed door frame. At least one bolt mounting hole is provided on the reinforcing plate, and a bolt and a nut are installed on the bolt mounting hole. A bolt adjustment hole is provided on the fixed door frame corresponding to the bolt; a nut positioning groove corresponding to the nut is provided on the movable door frame, and the nut is installed and positioned in the nut positioning groove; a hinge box is provided on the fixed door frame, and a hinge box socket matching the hinge box is provided on the movable door frame. It has the advantages of simple and reasonable structure, convenient processing and installation, high efficiency, and can be installed and used for wall thicknesses within a certain range. This prior art is a beneficial attempt in the technical field. Summary of the Invention

[0004] The purpose of the present invention is to provide a door frame with adjustable thickness, which can adjust the thickness of the door frame on-site during installation to match the on-site wall thickness, can not only ensure the smooth progress of door frame installation, but also reduce the production batches of enterprises; it has the characteristics of simple structure, convenient, fast adjustment.

[0005] A door frame with adjustable thickness according to the present invention includes a door frame body in the shape of "door", and the door frame body is composed of an upper door frame and two side door frames. The characteristics are that the upper door frame and the side door frames of the door frame body are respectively composed of a fixed plate member, an adjustable plate member and an adjustment guiding component with the same structure and are connected in cooperation; the upper right side of the fixed plate member is matched with the left side of the adjustable plate member and is connected together by multiple pairs of adjustment guiding components.

[0006] Furthermore, the adjustment guide assembly is composed of two bent sheet metal parts with the same structure, one of the bent sheet metal parts is fixedly connected to the fixed plate, and the other bent sheet metal part is fixedly connected to the adjustable plate; the ends of the two bent sheet metal parts are relatively matched and can slide.

[0007] Further, the bent sheet metal part has a rectangular mounting surface, an inclined support surface connected to the upper side of the mounting surface, and an inclined mating surface connected to the lower side of the mounting surface, wherein the angle α between the inclined support surface and the mounting surface is 120°, and the angle β between the mounting surface and the inclined mating surface is 135°; it also has a first bending structure connected to the left end of the lower side of the inclined mating surface, and a second bending structure connected to the lower side of the inclined mating surface and close to the first bending structure, wherein the second bending structure is slightly higher than the first bending structure, and the gap b between the middle parts of the two is 1.7 mm, and the gap c between the lower parts is 2.7 mm;

[0008] The inclined mating surface of one of the bent sheet metal parts cooperates with the gap b between the first bending structure and the middle part of the second bending structure of another of the bent sheet metal parts; the inclined mating surface of another of the bent sheet metal parts cooperates with the gap b between the first bending structure and the middle part of the second bending structure of one of the bent sheet metal parts.

[0009] Furthermore, the first bending structure is composed of a first bending surface, a second bending surface and a third bending surface; the width of the first bending surface is 7 mm, the width of the second bending surface is 11 mm, and the width of the third bending surface is 8 mm; the angle θ between the first bending surface and the second bending surface is 90°, and the angle θ between the second bending surface and the third bending surface is also 90°.

[0010] Furthermore, the second bending structure is composed of an upper bending surface, a middle bending surface and a lower bending surface; the width of the upper bending surface is 10 mm, the width of the middle bending surface is 7 mm, and the width of the lower bending surface is 8 mm; the angle θ between the upper bending surface and the middle bending surface is 90°, and the angle θ between the middle bending surface and the lower bending surface is also 90°.

[0011] Furthermore, the fixing plate is a bent steel plate member, the upper portion of which is in a "[" shape, the lower portion is in an "L" shape, and the right end of the lower portion is in a shape, and a first mounting hole is provided on the flat surface of the lower part;

[0012] The adjustable plate is also a bent steel plate member, the main body of which is in an inverted "L" shape, the left lower end is in an "L" shape, and the right upper end is in an inverted "L" shape, and a second mounting hole is provided on the flat surface of the main body;

[0013] The right side of the upper part of the fixed plate is matched with the left side of the main body of the adjustable plate, and are connected together through a plurality of adjustment guide components.

[0014] Beneficial effects of the present invention;

[0015] Since the door frame body of the present invention is composed of an upper door frame and two side door frames, and the upper door frame and the side door frames are respectively composed of fixed plates, adjustable plates and adjustment guide components with the same structure, and the adjustment guide components are composed of two bent sheet metal parts with the same structure, one of which is fixedly connected to the fixed plate, and the other is fixedly connected to the adjustable plate; the ends of the two bent sheet metal parts are relatively matched and can slide; by pulling and adjusting part of the door frame, the thickness of the door frame can be increased to meet the installation requirements of different wall thicknesses. It can not only ensure the smooth installation of the door frame, but also reduce the production batches of the enterprise; it has the characteristics of simple structure, convenient and fast adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic cross-sectional view of a fixed plate of the present invention;

[0017] Figure 2 is a schematic cross-sectional view of the adjustable plate of the present invention;

[0018] Figure 3 This is one of the structural schematic diagrams of the upper door frame of the present invention (the wall thickness is appropriate);

[0019] Figure 4 yes Figure 3 AA section view;

[0020] Figure 5 This is the second structural diagram of the upper door frame of the present invention (the wall thickness is relatively thick);

[0021] Figure 6 yes Figure 5 BB cross-sectional view;

[0022] Figure 7 It is an axonometric view of a bent sheet metal part;

[0023] Figure 8 yes Figure 7 Z-direction view;

[0024] Fig. 9 It is a schematic diagram of the structure of a bent sheet metal part;

[0025] Fig.10 yes Fig. 9 Left view of

[0026] Fig.11 yes Fig. 9Cross-sectional view of C-C;

[0027] Fig.12 is Fig. 9 Cross-sectional view of D-D;

[0028] Fig.13 is the cross-sectional view of the present invention installed on a wall with appropriate thickness;

[0029] Fig.14 is the cross-sectional view of the present invention installed on a wall with relatively thick thickness.

[0030] In the figure:

[0031] 1 - fixing plate member, 11 - upper part, 12 - lower part, 13 - right end, 14 - first mounting hole;

[0032] 2 - adjustable plate member, 21 - whole, 22 - left part of the lower end, 23 - right part of the upper end, 24 - second mounting hole;

[0033] 3 - adjustment guiding component;

[0034] 4 - bent sheet metal part, 40 - mounting surface, 41 - inclined support surface, 42 - inclined mating surface;

[0035] 43 - first bending structure, 431 - first bending surface, 432 - second bending surface, 433 - third bending surface;

[0036] 44 - second bending structure, 441 - upper bending surface, 442 - middle bending surface, 443 - lower bending surface;

[0037] 5 - wall. Detailed implementation manners

[0038] The invention will be further described below with reference to the accompanying drawings.

[0039] Refer to Figures 1 to 12 A door frame with adjustable thickness shown in the figure, including a door frame body in a "door" shape, the door frame body is composed of an upper door frame and two side door frames, and the characteristics are: the upper door frame and the side door frames of the door frame body are respectively composed of a fixing plate member 1, an adjustable plate member 2 and an adjustment guiding component 3 with the same structure and are connected in cooperation; the right side of the upper part of the fixing plate member 1 is mated with the left side of the adjustable plate member 2 and is connected together by multiple pairs of adjustment guiding components 3. The upper door frame is connected together by two pairs of adjustment guiding components, and each side door frame is connected together by three or four pairs of adjustment guiding components.

[0040] The adjustment guide assembly 3 is composed of two bent sheet metal parts 4 with the same structure, one of the bent sheet metal parts 4 is fixedly connected to the fixed plate 1, and the other bent sheet metal part 4 is fixedly connected to the adjustable plate 2; the ends of the two bent sheet metal parts 4 are relatively matched and can slide; thereby realizing the adjustment of the door frame thickness to adapt to the installation requirements of different wall thicknesses.

[0041] The bent sheet metal part 4 has a rectangular mounting surface 40, an inclined support surface 41 connected to the upper side of the mounting surface, and an inclined mating surface 42 connected to the lower side of the mounting surface, wherein the angle α between the inclined support surface 41 and the mounting surface 40 is 120°, and the angle β between the mounting surface 40 and the inclined mating surface 42 is 135°; it also has a first bent structure 43 connected to the left end of the lower side of the inclined mating surface, and a second bent structure 44 connected to the lower side of the inclined mating surface and close to the first bent structure, wherein the second bent structure 44 is slightly higher than the first bent structure 43, and the gap b between the middle parts is 1.7 mm, and the gap c between the lower parts is 2.7 mm;

[0042] The inclined mating surface 42 of one of the bent sheet metal parts 4 cooperates with the gap b between the first bending structure 43 and the middle part of the second bending structure 44 of another of the bent sheet metal parts 4; the inclined mating surface 42 of another of the bent sheet metal parts 4 cooperates with the gap b between the first bending structure 43 and the middle part of the second bending structure 44 of one of the bent sheet metal parts 4.

[0043] The first bending structure 43 is composed of a first bending surface 431, a second bending surface 432 and a third bending surface 433; the width of the first bending surface 431 is 7 mm, the width of the second bending surface 432 is 11 mm, and the width of the third bending surface 433 is 8 mm; the angle θ between the first bending surface 431 and the second bending surface 432 is 90°, and the angle θ between the second bending surface 432 and the third bending surface 433 is also 90°.

[0044] The second bending structure 44 is composed of an upper bending surface 441, a middle bending surface 442 and a lower bending surface 443; the width of the upper bending surface 441 is 10 mm, the width of the middle bending surface 442 is 7 mm, and the width of the lower bending surface 443 is 8 mm; the angle θ between the upper bending surface 441 and the middle bending surface 442 is 90°, and the angle θ between the middle bending surface 442 and the lower bending surface 443 is also 90°.

[0045] The fixing plate 1 is a bent steel plate member, the upper portion 11 of which is in a "[" shape, the lower portion 12 is in an "L" shape, and the right end 13 of the lower portion 12 is shape, a first mounting hole 14 is provided on the flat surface of the lower portion 12;

[0046] The adjustable plate 2 is also a bent steel plate member, the main body 21 of which is in an inverted "L" shape, the lower left part 22 is in an "L" shape, and the upper right part 23 is in an inverted "L" shape. A second mounting hole 24 is provided on the flat surface of the main body 21;

[0047] The right side of the upper portion 11 of the fixed plate 1 is matched with the left side of the main body 21 of the adjustable plate 2 and are connected together through a plurality of adjustment guide assemblies 3 .

[0048] See also Fig.13 and Fig.14 During installation, the adjustable plate 2 is pulled to slide along the multiple pairs of adjustment guide components 3, so that the thickness of the door frame can be changed to match the thickness of the specific wall 5, thereby ensuring smooth installation of the door frame.

Claims

1. A door frame with adjustable thickness, comprising a door frame body in the shape of a "door", wherein the door frame body consists of an upper door frame and two side door frames, and is characterized in that: The upper door frame and the side door frame of the door frame body are respectively formed by a fixed plate (1), an adjustable plate (2) and an adjustment guide assembly (3) of the same structure, which are connected in cooperation; the right side of the upper part (11) of the fixed plate (1) is matched with the left side of the main body (21) of the adjustable plate (2), and are connected together through a plurality of adjustment guide assemblies (3); The adjustment guide assembly (3) is composed of two bent sheet metal parts (4) of the same structure, one of the bent sheet metal parts (4) is fixedly connected to the fixed plate part (1), and the other of the bent sheet metal parts (4) is fixedly connected to the adjustable plate part (2); the ends of the two bent sheet metal parts (4) are relatively matched and can slide; The bent sheet metal part (4) comprises a rectangular mounting surface (40), an inclined support surface (41) connected to the upper side of the mounting surface, and an inclined matching surface (42) connected to the lower side of the mounting surface, wherein the angle α between the inclined support surface (41) and the mounting surface (40) is 120°, and the angle β between the mounting surface (40) and the inclined matching surface (42) is 135°; the bent sheet metal part (44) comprises a first bent structure (43) connected to the left end of the lower side of the inclined matching surface, and a second bent structure (44) connected to the lower side of the inclined matching surface and close to the first bent structure, wherein the second bent structure (44) is slightly higher than the first bent structure (43), and the gap b between the middle parts of the two is 1.7 mm, and the gap c between the lower parts is 2.7 mm; The inclined matching surface (42) of one of the bent sheet metal parts (4) matches with the gap b between the first bending structure (43) and the middle part of the second bending structure (44) of another of the bent sheet metal parts (4); the inclined matching surface (42) of another of the bent sheet metal parts (4) matches with the gap b between the first bending structure (43) and the middle part of the second bending structure (44) of one of the bent sheet metal parts (4); The fixing plate (1) is a steel plate member formed by bending, and the upper portion (11) of its cross section is in the shape of a "["; The adjustable plate member (2) is also a steel plate member formed by bending, and its main body (21) is in an inverted "L" shape in cross section, and its lower left end (22) is in an "L" shape.

2. The thickness-adjustable door frame according to claim 1, characterized in that: The first bending structure (43) is composed of a first bending surface (431), a second bending surface (432) and a third bending surface (433) connected together; the width of the first bending surface (431) is 7 mm, the width of the second bending surface (432) is 11 mm, and the width of the third bending surface (433) is 8 mm; the angle θ between the first bending surface (431) and the second bending surface (432) is 90°, and the angle θ between the second bending surface (432) and the third bending surface (433) is also 90°.

3. The thickness-adjustable door frame according to claim 1, characterized in that: The second bending structure (44) is composed of an upper bending surface (441), a middle bending surface (442) and a lower bending surface (443) connected together; the width of the upper bending surface (441) is 10 mm, the width of the middle bending surface (442) is 7 mm, and the width of the lower bending surface (443) is 8 mm; the angle θ between the upper bending surface (441) and the middle bending surface (442) is 90°, and the angle θ between the middle bending surface (442) and the lower bending surface (443) is also 90°.

4. The thickness-adjustable door frame according to claim 1, characterized in that: The lower portion (12) of the fixed plate (1) is in an "L" shape, the right end (13) of the lower portion (12) is in an "┓" shape, and a first mounting hole (14) is provided on the flat surface of the lower portion (12); the upper right portion (23) of the adjustable plate (2) is in an inverted "L" shape, and a second mounting hole (24) is provided on the flat surface of the main body (21).

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