A spliced ​​door frame

Abstract

The present invention belongs to the field of door technology, and specifically relates to a splicing door frame. In order to solve the problem that the existing splicing door frame structure is not entirely reasonable, the present invention adopts the following technical solution: a splicing door frame, the splicing door frame includes: a straight bar, the straight bar has a vertical embedded groove and a vertical opening portion perpendicular to the vertical embedded groove, the upper end of the vertical embedded groove has a first inclined surface; a head frame, the head frame has a horizontal embedded groove and a horizontal connecting portion perpendicular to the horizontal embedded groove, the two ends of the head frame have a second inclined surface; a connecting guide piece; an adjustment device, the adjustment device includes left and right adjustment screws rotatably mounted on the vertical opening portion of the straight bar and a tightening frame threadedly connected to the adjustment screw, the adjustment screw has a contact portion that can contact the vertical opening portion of the straight bar. The beneficial effect of the splicing door frame of the present invention is that the straight bar and the head frame are connected by the connecting guide piece, and the straight bar and the head frame are tightly connected by the adjustment device, so that the installation is relatively easy.

Description

Technical Field

[0001] The invention belongs to the technical field of doors, and in particular relates to a spliced ​​door frame. Background Art

[0002] A door frame primarily consists of vertical rails and a horizontal header. It is embedded in the wall and serves as the mounting for the door leaf. Door frames are typically made of wood or metal. For metal door frames, when the wall is thick, producing a monolithic door frame increases labor intensity and places high demands on production equipment. While welding a monolithic door frame is easier to manufacture, it can be cumbersome to transport and carry, taking up significant space and reducing transportation efficiency.

[0003] Therefore, some current methods are to first manufacture the two vertical rails and the header frame and transport them, and then assemble the two vertical rails and the header frame and install them into the door opening when in use. However, existing spliced ​​door frames have more or less the following disadvantages: low structural strength, greater assembly difficulty, and more troublesome installation into the door opening. Summary of the Invention

[0004] The present invention addresses the shortcomings of existing spliced ​​door frame structures and provides a spliced ​​door frame that is different from the existing structure and further improves in terms of structural strength and assembly difficulty.

[0005] To achieve the above object, the present invention adopts the following technical solution: a spliced ​​door frame, the spliced ​​door frame comprising:

[0006] There are two straight rails, each having two parallel vertical embedded grooves in the left and right directions and a vertical opening portion perpendicular to the vertical embedded grooves. The vertical opening portion has a screw mounting hole, and the upper end of the vertical embedded groove has a first inclined surface;

[0007] A head frame having two parallel horizontal embedding grooves in the left and right directions and a horizontal connecting portion perpendicular to the horizontal embedding grooves, and second inclined surfaces at both ends of the head frame, wherein the first inclined surface and the second inclined surface are in contact with each other;

[0008] Connecting guide pieces, the connecting guide pieces are fixed to the inner sides of the upper ends of the straight bars, the connecting guide pieces are inserted into the inner sides of the two ends of the head frame and fit into the head frame;

[0009] The adjusting device includes adjusting screws rotatably mounted on the vertical opening of the straight gear and a tightening frame threadedly connected to the adjusting screws. The adjusting screws have a contact portion that can contact the vertical opening of the straight gear.

[0010] The spliced ​​door frame of the present invention has a connecting guide piece fixed on the straight piece, which connects the straight piece and the head frame through the connecting guide piece, and the connecting guide piece maintains the front-to-back position of the straight piece and the head frame; an adjustment device is provided, and when the adjustment screw is tightened and the jacking frame is pressed against the wall of the door opening, the straight piece will move toward the head frame, so that the straight piece and the head frame are tightly connected. The spliced ​​door frame of the present invention has a structure different from that of the prior art, and it is easier to install in the door opening. A groove is formed between the two vertical embedding grooves for the side walls of the door opening to be embedded. The horizontal embedding groove forms a groove for the top wall of the door opening to be embedded. The interference portion can be a part of the adjustment screw or other components installed on the adjustment screw.

[0011] As an improvement, the vertical groove portion comprises a pair of vertical flat plates and an L-shaped portion bent inwardly from one end of the vertical flat plates away from the vertical opening. The vertical opening portion comprises vertical front and rear flat plates and a vertical groove portion formed by bending the front-to-rear midsection of the vertical front and rear flat plates away from the vertical groove portion. Both the vertical groove portion and the vertical opening portion of the straight rail have a bend, providing improved structural strength.

[0012] As an improvement, the transverse groove portion comprises a pair of transverse flat plates and an L-shaped portion bent inwardly from one end of the transverse flat plates away from the transverse connecting portion. The transverse connecting portion comprises transverse front and rear flat plates and a transverse groove portion formed by bending the middle portion of the transverse front and rear flat plates in the front-to-back direction away from the transverse groove portion. The transverse groove portion defines receiving grooves at both ends, and the vertical groove portion is located within the receiving grooves. Both the transverse groove portion and the transverse connecting portion of the head frame have a bend, providing good structural strength.

[0013] As an improvement, the connecting guide piece includes a vertical portion, an outer curved portion, and an upper curved portion. The vertical portion is partially fixed to the straight rail and partially fits with the head frame. The outer curved portion fits with the L-shaped portion of the straight rail, and the upper curved portion fits with the L-shaped portion of the head frame. The connecting guide piece has a curved portion, which improves structural strength.

[0014] As an improvement, notches are provided on the inner sides of both ends of the transverse groove of the head frame, the L-shaped portion of the straight block is located in the notches, and the distance between the two L-shaped portions of the straight block is greater than the distance between the two L-shaped portions of the head frame.

[0015] As an improvement, an anti-slip groove is provided on one end of the rod of the adjustment screw near the cap, and the adjustment device also includes an adjustment bracket fixed on the vertical opening portion of the straight gear, the adjustment bracket having a reducing groove, the large diameter end of the reducing groove being larger than the diameter of the rod of the adjustment screw, the small diameter end of the reducing groove cooperating with the anti-slip groove, and the small diameter end of the reducing groove cooperating with the screw mounting hole on the vertical opening portion of the straight gear. The adjustment bracket of the adjustment device cooperates with the adjustment screw to prevent the adjustment screw from falling out. The adjustment bracket also increases the structural strength of the screw mounting hole of the straight gear. The adjustment bracket can also prevent the adjustment screw from swinging left and right during rotation. The rod of the adjustment screw forms the interference portion.

[0016] As an improvement, the jacking frame is U-shaped, and a threaded hole is provided on the parallel wall of the vertical opening portion of the jacking frame close to the straight block.

[0017] As an improvement, the adjustment bracket further has a limiting portion for preventing the tightening bracket from rotating, and the adjustment bracket has a bending portion.

[0018] As an improvement, the spliced ​​door frame further comprises a mounting plate fixed to the inner side of the straight bar, wherein the mounting plate is a bendable metal plate and has a mounting hole formed thereon. The mounting hole is a waist-shaped hole extending in the left and right directions.

[0019] As an improvement, the straight rail and the head frame are made of metal profiles with the same cross-section; the straight rail includes a lock straight rail and a hinge straight rail, a hinge is installed on the hinge straight rail, and a door lock is installed on the lock straight rail.

[0020] The spliced ​​door frame of the present invention has the beneficial effects of connecting the straight rail and the head frame through the connecting guide piece, and the straight rail and the head frame are tightly connected through the adjusting device, so the installation is relatively easy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of the spliced ​​door frame according to the first embodiment of the present invention (when the mounting plate is not straightened).

[0022] Figure 2 It is a schematic diagram of the exploded structure of the spliced ​​door frame according to the first embodiment of the present invention.

[0023] Figure 3 This is a schematic structural diagram of the spliced ​​door frame according to the first embodiment of the present invention before being installed in the door opening.

[0024] Figure 4 It is a structural schematic diagram of the hinge straight block of the spliced ​​door frame according to the first embodiment of the present invention.

[0025] Figure 5 It is a structural schematic diagram of the lock straight block of the spliced ​​door frame according to the first embodiment of the present invention.

[0026] Figure 6 It is a structural schematic diagram of the header frame of the spliced ​​door frame according to the first embodiment of the present invention.

[0027] Figure 7 It is a cross-sectional schematic diagram of the hinge straight block, lock straight block and head frame of the spliced ​​door frame according to the first embodiment of the present invention.

[0028] Figure 8 It is a structural schematic diagram of the connecting guide piece of the spliced ​​door frame according to the first embodiment of the present invention.

[0029] Figure 9 It is a schematic diagram of the exploded structure of the adjustment device for the spliced ​​door frame according to the first embodiment of the present invention.

[0030] Figure 10 It is a structural schematic diagram of an adjustment bracket for adjusting the entire spliced ​​door frame according to the first embodiment of the present invention.

[0031] Figure 11 It is a structural schematic diagram of the adjusting screws for adjusting the entire spliced ​​door frame according to the first embodiment of the present invention.

[0032] Figure 12 It is a structural schematic diagram of a tightening frame for adjusting the integral structure of a spliced ​​door frame according to a first embodiment of the present invention.

[0033] Figure 13 It is a structural schematic diagram of a door using the spliced ​​door frame according to the first embodiment of the present invention.

[0034] In the figure, 1. Hinge straight gear,

[0035] 11. Vertical embedded groove portion, 111. First inclined surface, 112. Vertical flat plate portion, 113. L-shaped portion,

[0036] 12. Vertical opening portion, 121. Screw mounting hole, 122. Vertical front and rear flat plate portion, 123. Vertical groove portion,

[0037] 2. Lock the straight gear.

[0038] 3. Header frame,

[0039] 31. Horizontal groove portion, 311. Horizontal flat plate portion, 312. Notch, 313. Second inclined surface,

[0040] 32, horizontal connecting portion, 321, horizontal front and rear flat plate portion, 322, horizontal groove portion, 3221, receiving groove,

[0041] 4. Connecting guide piece, 41. Vertical portion, 42. Outer bending portion, 43. Upper bending portion,

[0042] 5. Adjustment device,

[0043] 51. Adjustment bracket, 511. Variable diameter groove, 512. Limiting part,

[0044] 52. Adjusting screw, 521. Anti-slip groove,

[0045] 53. Tightening frame,

[0046] 6. Install the fixing plate. DETAILED DESCRIPTION

[0047] The following is an explanation and description of the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention and are not exhaustive. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0048] See also Figures 1 to 13 A spliced ​​door frame of the present invention comprises:

[0049] There are two straight rails, each having two parallel vertical embedded grooves in the left and right directions and a vertical opening portion perpendicular to the vertical embedded grooves. The vertical opening portion has a screw mounting hole, and the upper end of the vertical embedded groove has a first inclined surface;

[0050] A head frame having two parallel horizontal embedding grooves in the left and right directions and a horizontal connecting portion perpendicular to the horizontal embedding grooves, and second inclined surfaces at both ends of the head frame, wherein the first inclined surface and the second inclined surface are in contact with each other;

[0051] Connecting guide pieces, the connecting guide pieces are fixed to the inner sides of the upper ends of the straight bars, the connecting guide pieces are inserted into the inner sides of the two ends of the head frame and fit into the head frame;

[0052] The adjusting device includes adjusting screws rotatably mounted on the vertical opening of the straight gear and a tightening frame threadedly connected to the adjusting screws. The adjusting screws have a contact portion that can contact the vertical opening of the straight gear.

[0053] The spliced ​​door frame of the present invention has a connecting guide piece fixed to the straight rail, which connects the straight rail and the header frame via the connecting guide piece. The connecting guide piece maintains the front-to-back position of the straight rail and the header frame. An adjustment device is provided. When the adjustment screw is tightened and the jacking frame is pressed against the door opening wall, the straight rail moves toward the header frame, tightly connecting the straight rail and the header frame. The spliced ​​door frame of the present invention has a different structure from the existing technology and is easier to install in the door opening. The two vertical embedding grooves form an embedding groove for the side wall of the door opening to be embedded in. The horizontal embedding groove forms an embedding groove for the top wall of the door opening to be embedded in.

[0054] Example 1

[0055] See also Figures 1 to 13 , a spliced ​​door frame according to a first embodiment of the present invention, the spliced ​​door frame comprising:

[0056] There are two straight rails, each having two parallel vertical embedding grooves 11 in the left and right directions and a vertical opening 12 perpendicular to the vertical embedding grooves 11. The vertical opening 12 has screw mounting holes 121. The upper end of the vertical embedding groove 11 has a first inclined surface 111;

[0057] The head frame 3 has two parallel horizontal grooves 31 and a horizontal connecting portion 32 perpendicular to the horizontal grooves 31. The head frame 3 has second inclined surfaces 313 at both ends. The first inclined surface 111 and the second inclined surface 313 are in contact with each other.

[0058] Connecting guide pieces 4, which are fixed to the inner sides of the upper ends of the straight bars, and are inserted into the inner sides of the two ends of the head frame 3 and fit in with the head frame 3;

[0059] The adjusting device 5 includes adjusting screws 52 rotatably mounted on the vertical opening portion 12 of the straight gear and a tightening frame 53 threadedly connected to the adjusting screw 52. The adjusting screw 52 has a contact portion that can contact the vertical opening portion 12 of the straight gear.

[0060] As an improvement, the angles of the first inclined surface 111 and the second inclined surface 313 are both 45°.

[0061] As an improvement, the vertical embedded groove portion 11 includes a pair of vertical flat plate portions 112 and an L-shaped portion 113 bent inwardly at one end of the vertical flat plate portion 112 away from the vertical opening portion 12. The vertical opening portion 12 includes vertical front and rear flat plate portions 122 and a vertical groove portion 123 formed by bending the middle portion of the vertical front and rear flat plate portions 122 in the front-to-back direction away from the vertical embedded groove portion 11. Both the vertical embedded groove portion 11 and the vertical opening portion 12 of the straight gear have a bend, which provides good structural strength.

[0062] As an improvement, the transverse groove portion 31 includes a pair of transverse flat plate portions 311 and an L-shaped portion 113 bent inwardly from one end of the transverse flat plate portion 311 away from the transverse connecting portion 32. The transverse connecting portion 32 includes a transverse front and rear flat plate portion 321 and a transverse groove portion 322 formed by bending the middle portion of the transverse front and rear flat plate portion 321 in the front-to-back direction away from the transverse groove portion 31. The transverse groove portion 322 has accommodating grooves 323 at both ends, and the vertical groove portion 123 is located in the accommodating grooves 323. Both the transverse groove portion 31 and the transverse connecting portion 32 of the head frame 3 have bends, which provide good structural strength.

[0063] As an improvement, the connecting guide piece 4 includes a vertical portion 41, an outer bent portion 42, and an upper bent portion 43. The vertical portion 41 is partially fixed to the straight block and partially fits with the head frame 3. The outer bent portion 42 fits with the L-shaped portion 113 of the straight block, and the upper bent portion 43 fits with the L-shaped portion 113 of the head frame 3. The connecting guide piece 4 has a bent portion, and its structural strength is better.

[0064] As an improvement, notches 312 are opened on the inner sides of both ends of the horizontal embedded groove 31 of the head frame 3, and the L-shaped portion 113 of the straight block is located in the notch 312. The distance between the two L-shaped portions 113 of the straight block is greater than the distance between the two L-shaped portions 113 of the head frame 3.

[0065] As an improvement, the rod of the adjustment screw 52 is provided with an anti-slip groove 512 near one end of the cap, and the adjustment device 5 also includes an adjustment bracket 51 fixed on the vertical opening portion 12 of the straight gear. The adjustment bracket 51 has a reducing groove 511, the large diameter end of the reducing groove 511 is larger than the diameter of the rod of the adjustment screw 52, ​​the small diameter end of the reducing groove 511 cooperates with the anti-slip groove 512, and the small diameter end of the reducing groove 511 cooperates with the screw mounting hole 121 on the vertical opening portion 12 of the straight gear. The adjustment bracket 51 of the adjustment device 5 cooperates with the adjustment screw 52 to prevent the adjustment screw 52 from falling out. The adjustment bracket 51 also increases the structural strength of the screw mounting hole 121 of the straight gear. The adjustment bracket 51 can also prevent the adjustment screw from swinging left and right when rotating.

[0066] As an improvement, the jacking frame 53 is U-shaped, and a threaded hole is provided on the parallel wall of the vertical opening portion 12 of the jacking frame 53 close to the straight block.

[0067] As an improvement, the adjustment bracket 51 further comprises a limit portion 512 for preventing the pressing bracket 53 from rotating, and the adjustment bracket 51 comprises a bent portion. The adjustment bracket 51 is a metal part.

[0068] As an improvement, the spliced ​​door frame further includes an installation fixing piece 6 fixed to the inner side of the straight block. The installation fixing piece 6 is a bendable metal sheet, and an installation hole is provided on the installation fixing piece 6.

[0069] As an improvement, the straight rail and head frame 3 are machined from metal profiles with the same cross-section. The straight rail includes a lock straight rail 2 and a hinge straight rail 1. The hinge straight rail 1 is mounted on the hinge, while the lock straight rail 2 is mounted on the door lock. The hinge straight rail 1 has three hinge mounting holes, while the lock straight rail 2 has one lock mounting hole. The lock straight rail 2 differs from the hinge straight rail 1 only in the location of the holes machined thereon.

[0070] The use of the spliced ​​door frame of the first embodiment of the present invention is as follows: before transportation, first process the straight block, the head frame 3, the connecting guide piece 4, the adjustment device 5 and the installation fixing piece 6, and weld the connecting guide piece 4 to the straight block, pass the adjusting screw 52 through the screw mounting hole 121 on the straight block and slide it from the large diameter end to the small diameter end of the reducing groove 511 of the adjusting bracket 51, weld the adjusting bracket 51 to the straight block, then screw the tightening frame 53 to the adjusting screw 52, ​​and finally weld the installation fixing piece 6 to the straight block. Each component is divided into three parts to complete the preparation before transportation; the three-part assembly After transporting to the destination, first straighten the installation fixing piece 6. During installation, stand any straight piece in the door opening and embed it in the wall. Then insert the head frame 3 into the connecting guide piece 4 on the straight piece and keep it tilted at a certain angle. Then insert the other straight piece into the head frame 3. After appropriate adjustment, stand it in the door opening and embed it in the wall. Then, drive the tightening frame 53 through the adjusting screws at the screw mounting holes 121 on the outer sides of the two straight pieces respectively. The tightening frame 53 presses the door opening wall tightly to keep the straight piece and the head frame 3 tightly connected. After adjusting the size, fix the door frame to the wall by installing screws on the installation fixing piece 6.

[0071] The beneficial effects of the spliced ​​door frame of embodiment 1 of the present invention are: the straight rail and the head frame 3 are connected by connecting the guide piece 4, and the straight rail and the head frame 3 are tightly connected by the adjustment device 5, and the installation is relatively easy; the cross rail and the head frame 3 both have bending parts, and the structural strength is good.

[0072] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Those skilled in the art will understand that the present invention includes, but is not limited to, the contents described in the drawings and the above specific embodiments. Any modifications that do not deviate from the functional and structural principles of the present invention are intended to be included within the scope of the claims.

Claims

1. A spliced ​​door frame, characterized by: The splicing door frame includes: There are two straight rails (1, 2), each of which has two vertical embedded grooves (11) in the left and right directions and parallel to each other, and a vertical opening portion (12) perpendicular to the vertical embedded grooves (11), a screw mounting hole (121) is provided on the vertical opening portion (12), and the upper end of the vertical embedded groove portion (11) has a first inclined surface (111); A head frame (3), the head frame (3) having two horizontally parallel embedded grooves (31) and a horizontal connecting portion (32) perpendicular to the horizontal embedded grooves (31), the head frame (3) having second inclined surfaces (313) at both ends, the first inclined surface (111) and the second inclined surface (313) being in contact with each other; A connecting guide piece (4), wherein the connecting guide piece (4) is fixed to the inner sides of the upper ends of the straight bars (1, 2), and the connecting guide piece (4) is inserted into the inner sides of the two ends of the head frame (3) and fits with the head frame (3); An adjusting device (5), comprising adjusting screws (52) rotatably mounted on the vertical openings (12) of the straight gears (1, 2) and arranged on the left and right sides thereof, and a tightening frame (53) threadedly connected to the adjusting screws (52), wherein the adjusting screws (52) have a contact portion capable of contacting the vertical openings (12) of the straight gears (1, 2); The rod portion of the adjusting screw (52) forms the interference portion; The connecting guide piece (4) includes a vertical portion (41), a portion of the vertical portion (41) is fixedly connected to the straight rails (1, 2), and a portion is in contact with the head frame (3); Notches (312) are provided on the inner sides of both ends of the transverse embedded groove portion (31) of the head frame (3), and the L-shaped portions (113) of the straight blocks (1, 2) are located in the notches (312); During installation, the vertical embedding grooves (11) of the straight bars (1, 2) are embedded in the wall, the adjusting screws (52) are tightened, and when the jacking frame (53) is pressed against the door opening wall, the straight bars (1, 2) move toward the head frame (3), so that the straight bars (1, 2) and the head frame (3) are tightly connected.

2. A spliced ​​door frame according to claim 1, characterized in that: The vertical embedded groove portion (11) comprises a pair of vertical flat plate portions (112) and an L-shaped portion (113) bent inwardly from one end of the vertical flat plate portion (112) away from the vertical opening portion (12); the vertical opening portion (12) comprises vertical front and rear flat plate portions (122) and a vertical groove portion (123) formed by bending the middle portion of the vertical front and rear flat plate portions (122) in the front-to-back direction away from the vertical embedded groove portion (11).

3. The spliced ​​door frame according to claim 2, characterized in that: The transverse embedded groove portion (31) includes a pair of transverse flat plate portions (311) and an L-shaped portion (113) bent inwardly from one end of the transverse flat plate portion (311) away from the transverse connecting portion (32); the transverse connecting portion (32) includes transverse front and rear flat plate portions (321) and a transverse groove portion (322) formed by bending the middle portion of the transverse front and rear flat plate portions (321) in the front and rear directions away from the transverse embedded groove portion (31); the transverse groove portion (322) has accommodating grooves (323) at both left and right ends, and the vertical groove portion (123) is located in the accommodating groove (323).

4. The spliced ​​door frame according to claim 3, characterized in that: The connecting guide piece (4) further comprises an outer bending portion (42) and an upper bending portion (43), wherein the outer bending portion (42) is fitted with the L-shaped portion (113) of the straight bars (1, 2), and the upper bending portion (43) is fitted with the L-shaped portion (113) of the head frame (3).

5. The spliced ​​door frame according to claim 3, characterized in that: The distance between the two L-shaped parts (113) of the straight bars (1, 2) is greater than the distance between the two L-shaped parts (113) of the head frame (3).

6. A spliced ​​door frame according to any one of claims 1 to 5, characterized in that: The rod of the adjusting screw (52) is provided with an anti-slip groove (521) near one end of the cap. The adjusting device (5) further comprises an adjusting bracket (51) fixed on the vertical opening portion (12) of the straight block (1, 2). The adjusting bracket (51) has a reducing groove (511). The large diameter end of the reducing groove (511) is larger than the diameter of the rod of the adjusting screw (52). The small diameter end of the reducing groove (511) cooperates with the anti-slip groove (521). The small diameter end of the reducing groove (511) cooperates with the screw mounting hole (121) on the vertical opening portion (12) of the straight block (1, 2).

7. The spliced ​​door frame according to claim 6, characterized in that: The jacking frame (53) is U-shaped, and a threaded hole is provided on a parallel wall of the jacking frame (53) close to the vertical opening portion (12) of the straight gear (1, 2).

8. The spliced ​​door frame according to claim 6, characterized in that: The adjustment bracket (51) further comprises a limiting portion (512) for preventing the tightening bracket (53) from rotating.

9. A spliced ​​door frame according to any one of claims 1 to 5, characterized in that: The spliced ​​door frame further comprises an installation fixing plate (6) fixed to the inner side of the straight blocks (1, 2); the installation fixing plate (6) is a bendable metal plate, and an installation hole is provided on the installation fixing plate (6).

10. A spliced ​​door frame according to any one of claims 1 to 5, characterized in that: The straight rails (1, 2) and the head frame (3) are made of metal profiles with the same cross-section; the straight rails (1, 2) include lock straight rails (1, 2) and hinge straight rails (1, 2); hinges are installed on the hinge straight rails (1, 2), and door locks are installed on the lock straight rails (1, 2).

Images