A fabricated door frame and a method of installing the same

Abstract

The application relates to a fabricated door frame and a mounting method thereof, and relates to the technical field of door frame mounting. The fabricated door frame comprises an outer frame and a top frame, the top frame is mounted on the outer frame, a sliding groove is formed in the inner side wall of the outer frame, a guide inclined surface is arranged at one end of the sliding groove, a plurality of extension devices are arranged in the sliding groove, and the plurality of extension devices are arranged in sequence along the length direction of the sliding groove; the extension device comprises a first elastic piece and a first extension block, the first extension block is arranged in the sliding groove and slides along the length direction of the sliding groove; a sliding plate is arranged at the position of the sliding groove, the sliding plate is slidably connected with the side wall of the outer frame and is used for covering the sliding groove; the first elastic piece is arranged between the sliding plate and the first extension block; a locking device is arranged between adjacent first extension blocks, and the locking device can fix the adjacent extension blocks; a first driving assembly for driving the extension device to move is arranged on the outer frame. The application has the effects of increasing the applicability of the door frame and reducing the concrete filling process.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of door frame mounting, in particular to a fabricated door frame and a mounting method thereof. BACKGROUND

[0002] The door frame is a building decoration term, and its main functions are to fix the door leaf and protect the corners, decoration and the like. It is commonly used in the decoration process to protect the door from scratches, corrosion, damage, dirt and the like.

[0003] In the related art, the door frame is mounted by first opening a door opening on the wall and then mounting the door frame on the inner wall of the door opening.

[0004] In the related art, in the process of opening the door opening, it is difficult to ensure that the size of the door opening is matched with the size of the door frame, and the height of the door opening is prone to being higher than the height of the door frame. At this time, concrete needs to be filled between the inner wall of the door opening and the door frame to ensure that the door opening is matched with the door frame. When the height difference between the door opening and the door frame is large, more concrete needs to be filled, the operation process is very troublesome, and the applicability of the door frame is low. Only one door opening can be used. SUMMARY

[0005] The application aims to provide a fabricated door frame with high applicability and reduced concrete filling process and a mounting method thereof.

[0006] In a first aspect, the application provides a fabricated door frame adopting the following technical scheme: a fabricated door frame comprising an outer frame and a top frame, wherein the top frame is mounted on the outer frame, a sliding groove is formed in the inner side wall of the outer frame, a guide inclined surface is arranged at one end of the sliding groove, and a plurality of extension devices are arranged in the sliding groove and arranged in sequence along the length direction of the sliding groove.

[0007] The extension device comprises a first elastic member and a first extension block, and the first extension block is arranged in the sliding groove and slides along the length direction of the sliding groove.

[0008] A sliding plate is arranged at the position of the sliding groove, the sliding plate is in sliding connection with the side wall of the outer frame and is used to cover the sliding groove;

[0009] The first elastic member is arranged between the sliding plate and the first extension block, one end of the first elastic member is fixedly connected with the sliding plate, and the other end of the first elastic member is fixedly connected with the first extension block.

[0010] A locking device is arranged between adjacent first extension blocks, and the locking device can fix adjacent extension blocks.

[0011] A first driving assembly for driving the extension device to move is arranged on the outer frame.

[0012] By adopting the technical scheme, when the door frame is not matched with the door opening in height, the locking device is opened, the first driving assembly is opened, the first driving assembly drives the first extension block to move upward, and then moves to the top surface of the outer frame under the guidance of the guide slope, thereby increasing the overall height of the door frame, and increasing the applicability of the door frame. When the door opening height is not matched with the door frame height, the door frame height can be adjusted, thereby reducing the step of filling concrete between the door opening and the door frame, and simplifying the installation process.

[0013] Optionally, the first extension block is provided with a mounting groove, and the two mounting grooves are symmetrically arranged about the central axis of the first extension block.

[0014] Each mounting groove is provided with a supporting mechanism, and the supporting mechanism comprises a second extension block, a sliding assembly and a second driving assembly.

[0015] The sliding assembly is arranged between the second extension block and the mounting groove, and the second extension block slides along the depth direction of the mounting groove through the sliding assembly.

[0016] Each mounting groove is provided with one second driving assembly for driving the second extension block to move.

[0017] Because the first extension block is placed in the sliding groove, the width of the first extension block is necessarily smaller than the width of the outer frame, and when the first extension block is at the top end of the outer frame, it is not matched with the size of the outer frame, and there is a large gap, which affects the integrity of the door frame. By adopting the above technical scheme, when the first extension block is at the top end of the outer frame, the second extension block is supported, so that the combined width of the second extension block and the first extension block is the same as the width of the outer frame, thereby increasing the overall integrity of the door frame and reducing the dust accumulation during use of the door frame.

[0018] Optionally, the first extension block is provided with an abutting groove, and each mounting groove corresponds to one abutting groove.

[0019] The second extension block comprises an extending portion and an abutting portion, and the extending portion is fixedly connected to the abutting portion.

[0020] The second driving assembly comprises a first electromagnet and a second electromagnet, and the first electromagnet and the second electromagnet are both provided with two.

[0021] One first electromagnet is mounted on the inner wall of the abutting groove, and another first electromagnet is mounted on the abutting portion, and the two first electromagnets are parallel to each other.

[0022] One second electromagnet is mounted on the inner wall of the mounting groove, and another second electromagnet is mounted on the abutting portion, and the two second electromagnets are parallel to each other.

[0023] The first electromagnet and the second electromagnet are perpendicular to each other.

[0024] By adopting the technical scheme, the second electromagnet is energized, repulsion is generated between the two second electromagnets, the abutting portion is pushed to move away from the mounting groove, the second electromagnet is then disconnected, the first electromagnet is turned on, attraction is generated between the two first electromagnets, the abutting portion is driven to move towards the abutting groove, the abutting portion is inserted into the abutting groove, and then the movement of the second extension block is completed, thereby increasing the integrity of the door frame.

[0025] Optionally, one end of the mounting groove of the first extension block is provided with an expansion groove, and the first extension block is provided with a side cladding plate.

[0026] The second elastic member is fixedly connected to one end of the side cladding plate and fixedly connected to the inside of the expansion groove.

[0027] Because the mounting groove and the abutting groove are arranged on the side wall of the first extension block, the integrity of the side wall of the first extension block is low and is easy to accumulate dust. By adopting the technical scheme, the side cladding plate is arranged on the side wall of the first extension block, and the side cladding plate covers the mounting groove and the abutting groove when the second extension block moves, thereby increasing the integrity of the first extension block and reducing the possibility of dust accumulation.

[0028] Optionally, a limiting groove is arranged on the inner wall of each mounting groove, the sliding assembly comprises a third elastic member, one end of the third elastic member is fixedly connected to the second extension block, and the other end of the third elastic member is arranged in the limiting groove and slides in the limiting groove.

[0029] The second extension block is driven to move by the first electromagnet and the second electromagnet, and the on-off of the second electromagnet needs to be controlled to control the moving distance of the second extension block. However, the distance accuracy is low and the error is large when the on-off of the second electromagnet is controlled. By adopting the technical scheme, when the second extension block moves to the corresponding position, the third elastic member is limited by the limiting groove, the movement of the second extension block is limited, the position deviation of the movement of the second extension block is small, the movement accuracy is high, and the abutment between the extension portion and the side wall of the outer frame is more close.

[0030] Optionally, the locking device comprises a fourth elastic member and a limiting column, a limiting blind hole is arranged on the top surface of each first extension block, and the limiting column is arranged in the limiting blind hole and slides in the limiting blind hole.

[0031] The fourth elastic member is arranged between the limiting column and the inner wall of the limiting blind hole, one end of the fourth elastic member is fixedly connected with the limiting column, and the other end of the fourth elastic member is fixedly connected with the inner wall of the limiting blind hole.

[0032] The end of the limiting column away from the limiting blind hole is provided with a spherical surface.

[0033] The bottom surface of each first extension block is provided with a positioning blind hole, and the positioning blind hole is matched with the limiting column.

[0034] By adopting the above technical scheme, the limiting column is moved into the limiting blind hole under the guidance of the spherical surface during the movement of the first extension block outward, so that the limiting between the adjacent first extension blocks is released.

[0035] Optionally, the first driving assembly comprises third electromagnets, the third electromagnets are two, the two third electromagnets are parallel to each other, one third electromagnet is mounted on the inner wall of the outer frame, and the other third electromagnet is mounted on the bottommost first extension block.

[0036] By adopting the above technical scheme, the third electromagnet is turned on, repulsive force is generated between the two third electromagnets, and the first extension block is pushed to move, the electromagnet is used as a driving part, the space occupied is small, the space is saved, and installation is facilitated.

[0037] Optionally, a plurality of balls are arranged on the inner wall of the sliding groove, and the balls are in rolling connection with the inner wall of the sliding groove.

[0038] By adopting the above technical scheme, the balls roll during the movement of the first extension block, thereby reducing the friction between the first extension block and the inner wall of the sliding groove and reducing the wear between the first extension blocks.

[0039] In a second aspect, the application provides a mounting method of the above-mentioned assembled door frame, and the following technical scheme is adopted:

[0040] S1: opening, opening a door opening on a wall surface;

[0041] S2: installation, installing the outer frame and the top frame on the inner wall of the door opening;

[0042] S3: adjustment, the height of the door frame is adjusted by sliding the first extension block to lift the top frame, so that the top frame is tightly abutted with the inner top wall of the door opening;

[0043] S4: supporting and flattening: the second extension block on the first extension block that has been extended out of the sliding groove starts to slide, so that the extension part extends out of the installation groove and is parallel to the first extension block;

[0044] S5: Fix, lock the top frame and the adjacent first extension block by the locking device.

[0045] By adopting the above technical scheme, the height of the door frame can be adjusted, thereby increasing the applicability of the door frame and reducing the process of filling concrete when installing the door frame, facilitating installation.

[0046] In summary, the present application includes at least one of the following beneficial technical effects:

[0047] 1. When the door frame and the door height are not matched, open the locking device, open the first drive assembly, and move the first extension block upward under the guidance of the guide slope, thereby increasing the overall height of the door frame, thereby increasing the applicability of the door frame, and when the door height and the door frame height are not matched, the height of the door frame can be adjusted, thereby reducing the step of filling concrete between the door and the door frame, and simplifying the installation process;

[0048] 2. When the first extension block is at the top of the outer frame, the second extension block is expanded, so that the combined width of the second extension block and the first extension block is the same as the width of the outer frame, thereby increasing the overall integrity of the door frame and reducing dust accumulation during use of the door frame;

[0049] 3. The side cover plate is arranged on the side wall of the first extension block, and the side cover plate moves while the second extension block moves, thereby increasing the integrity of the first extension block, thereby reducing the possibility of dust accumulation in the first extension block. BRIEF DESCRIPTION OF DRAWINGS

[0050] Figure 1 is a partial explosion schematic diagram of the overall structure of the assembled door frame of the embodiment of the present application.

[0051] Figure 2 is a partial view of the embodiment of the present application for embodying the internal structure of the sliding groove.

[0052] Figure 3 is an explosion structure schematic diagram of the supporting mechanism of the embodiment of the present application.

[0053] Figure 4 is Figure 1 a partial enlarged schematic diagram of part A of

[0054] Figure 5 is a structure schematic diagram for embodying the position of the positioning blind hole of the embodiment of the present application.

[0055] Figure 6 is a schematic diagram of the overall structure of the assembled door frame after the movement of the extension device of the embodiment of the present application.

[0056] Figure 7is a partial structure schematic diagram for embodying the position relationship of the first driving assembly according to the embodiment of the present application.

[0057] Figure 8 is a partial structure schematic diagram for embodying the position relationship of the first extension block and the second extension block according to the embodiment of the present application.

[0058] Figure 9 is a partial structure schematic diagram for embodying the position relationship of the first extension block and the second extension block after the movement of the supporting mechanism according to the embodiment of the present application.

[0059] Figure 10 is a partial structure schematic diagram for embodying the position of the sliding assembly according to the embodiment of the present application.

[0060] In the figure, 11, outer frame; 111, sliding groove; 1111, guide inclined surface; 1112, ball; 112, sliding plate; 12, top frame; 121, bolt;

[0061] 2, locking device; 21, fourth elastic member; 22, limiting column; 221, spherical surface; 23, limiting blind hole; 24, positioning blind hole;

[0062] 3, extension device; 31, first elastic member; 32, first extension block; 321, mounting groove; 322, abutting groove; 323, telescopic groove; 324, side cladding; 3241, insertion block; 325, second elastic member;

[0063] 4, first driving assembly; 41, third electromagnet;

[0064] 5, supporting mechanism; 51, second extension block; 511, protruding part; 512, abutting part;

[0065] 52, sliding assembly; 521, third elastic member; 522, limiting groove;

[0066] 53, second driving assembly; 531, first electromagnet; 532, second electromagnet;

[0067] 61, first sticking plate; 62, second sticking plate. DETAILED DESCRIPTION

[0068] The following will be described in detail with reference to the accompanying drawings. Figure 1 - the accompanying drawings Figure 10 The present application will be further described in detail.

[0069] An assembled door frame, with reference to Figure 1 comprises an outer frame 11 and a top frame 12, and a locking device 2 is arranged between the outer frame 11 and the top frame 12, and the outer frame 11 and the top frame 12 are fixed to each other through the locking device 2.

[0070] With reference to Figure 1 andFigure 2 The inner wall of the outer frame 11 is provided with a sliding groove 111, and the sliding groove 111 has two sliding grooves 111 provided on the two inner walls of the outer frame 11 which are symmetrical to each other, and the two sliding grooves 111 are symmetrical to each other. A sliding plate 112 is arranged at the position of each sliding groove 111, and the sliding plate 112 covers the sliding groove 111 and is in sliding connection with the inner wall of the outer frame 11. A plurality of extension devices 3 are arranged in the sliding groove 111, and the plurality of extension devices 3 are arranged in sequence along the length direction of the sliding groove 111, and the plurality of extension devices 3 are arranged in a linear form. The top end of the inner wall of the sliding groove 111 is provided with a guide inclined surface 1111, and the guide inclined surface 1111 is arranged to be inclined away from the extension device 3. A plurality of rolling balls 1112 are arranged on the inner wall of the sliding groove 111, and the plurality of rolling balls 1112 are uniformly arranged on the inner wall of the sliding groove 111 and are in rolling connection with the inner wall of the sliding groove 111.

[0071] Referring to Figure 1 and Figure 3 The extension device 3 comprises a first elastic member 31 and a first extension block 32. In this embodiment, the first elastic member 31 is a spring, and in other embodiments, the first elastic member 31 can also be an elastic telescopic rod with a built-in spring. The first elastic member 31 is arranged between the first extension block 32 and the sliding plate 112, one end of the first elastic member 31 is fixedly connected with the sliding plate 112, and the other end of the first elastic member 31 is fixedly connected with the first extension block 32. The adjacent first extension blocks 32 are also provided with a locking device 2, and the adjacent first extension blocks 32 are fixed to each other through the locking device 2. The first driving assembly 4 is arranged between the bottommost first extension block 32 and the inner wall of the outer frame 11.

[0072] When the height of the door frame and the height of the door opening are greatly different, the locking device 2 is opened, the first driving member is opened, the first driving assembly 4 drives the bottommost first extension block 32 to move upward along the length direction of the sliding groove 111, and then drives all the first extension blocks 32 and the sliding plate 112 to move upward along the length direction of the sliding groove 111. When the uppermost first extension block 32 is in contact with the guide inclined surface 1111, the first elastic member 31 connected with the uppermost first extension block 32 restores, drives the uppermost first extension block 32 to move away from the sliding groove 111, and under the guidance of the guide inclined surface 1111, the first extension block 32 gradually moves to the top end of the outer frame 11 and lifts the top frame 12. The rear first extension block 32 operates according to the above steps until the top frame 12 abuts against the inner top wall of the door opening. At this time, the locking device 2 is closed, the adjacent first extension blocks 32 are locked to each other, and the first extension block 32 in contact with the top frame 12 and the top frame 12 are locked to each other. At this time, the height of the door frame and the height of the door opening are matched, and the step of filling concrete is reduced. If the distance between the door opening and the top frame 12 cannot accommodate an integer number of first extension blocks 32, a small amount of concrete is filled in the last gap to complete the installation of the door frame.

[0073] Referring toFigure 4 The locking device 2 comprises a fourth elastic member 21 and a limiting column 22, the top surface of each first extension block 32 is provided with two limiting blind holes 23, the top surface of the outer frame 11 is also provided with two limiting blind holes 23, one limiting column 22 is arranged in each limiting blind hole 23, and the limiting column 22 slides along the depth direction of the limiting blind hole 23. In the embodiment, the fourth elastic member 21 is a spring, one end of the fourth elastic member 21 is fixedly connected with the limiting column 22, and the other end of the fourth elastic member 21 is fixedly connected with the inner bottom wall of the limiting blind hole 23. The end, away from the fourth elastic member 21, of the limiting column 22 is provided with a spherical surface 221.

[0074] Referring to Figure 1 and Figure 5 the bottom wall of each first extension block 32 is provided with two positioning blind holes 24, the bottom surface of the top frame 12 is also provided with two positioning blind holes 24, the positions of the positioning blind holes 24 correspond to the positions of the limiting blind holes 23, and the positioning blind holes 24 are adapted to the limiting column 22.

[0075] Referring to Figure 1 and Figure 4 the side wall of the top frame 12 is provided with a bolt 121, the bolt 121 penetrates through the top frame 12 and is inserted into the limiting column 22 of the top frame 12.

[0076] When it is necessary to adjust the height of the door frame, the bolt 121 is pulled out, the locking of the top frame 12 is released, the first driving assembly 4 is started, the first driving assembly 4 drives the first extension block 32 to move upwards, the top frame 12 is lifted in the process of moving upwards, and then the positioning blind holes 24 on the top frame 12 are disengaged from the limiting column 22 on the outer frame 11. When the first extension block 32 is pushed outwards by the first elastic member 31, the inner wall of the positioning blind hole 24 is in contact with the spherical surface 221, the limiting column 22 moves into the limiting blind hole 23 under the guidance of the spherical surface 221, and then the fourth elastic member 21 is compressed.

[0077] In the process of moving the first extension block 32 to the top wall of the outer frame 11, the side wall of the first extension block 32 is in contact with the spherical surface 221 on the limiting column 22 on the outer frame 11, the limiting column 22 on the outer frame 11 moves into the limiting blind hole 23 under the guidance of the spherical surface 221, when the positioning blind hole 24 on the bottom surface of the first extension block 32 is aligned with the limiting blind hole 23 on the outer frame 11, the fourth elastic member 21 restores, drives the limiting column 22 to reset, and then the limiting column 22 is inserted into the positioning blind hole 24, and the first extension block 32 is limited.

[0078] In the process of the first extension block 32 at the top moving to the top wall of the outer frame 11, the spherical surface 221 on the limiting column 22 of the top wall of the first extension block 32 at the top is in contact with the side wall of the top frame 12, and under the guidance of the spherical surface 221, the limiting column 22 moves into the limiting blind hole 23, when the limiting blind hole 23 on the first extension block 32 at the top corresponds to the position of the positioning blind hole 24 on the bottom surface of the top frame 12, the fourth elastic member 21 restores, drives the limiting column 22 to reset, and then the limiting column 22 is inserted into the positioning blind hole 24, at this time, the bolt 121 is inserted, and the top frame 12 and the first extension block 32 at the top are fixed with each other. When the first extension block 32 below the first extension block 32 at the top continues to move upwards, in the process of moving upwards to the guide inclined surface 1111, the top surface of the first extension block 32 below the first extension block 32 at the top abuts against the bottom surface of the first extension block 32 at the top, so that the first extension block 32 at the top is lifted, and the above steps are repeated to fix the first extension block 32 at the top of the outer frame 11.

[0079] Referring to Figure 6 and Figure 7 , the first driving assembly 4 includes two third electromagnets 41, one of which is embedded on the inner bottom wall of the outer frame 11, and the other is fixedly installed on the bottom surface of the first extension block 32 at the bottom. When it is necessary to drive the first extension block 32 to move, the third electromagnets 41 are powered, so that repulsion is generated between the two third electromagnets 41 arranged symmetrically with each other, thereby driving the first extension block 32. Two positioning blind holes 24 are also formed on the third electromagnet 41 installed on the first extension block 32, so that when the first extension block 32 at the bottom moves to the top of the outer frame 11, the limiting column 22 is inserted into the positioning blind hole 24 on the third electromagnet 41.

[0080] Referring to Figure 8 and Figure 9 , two mutually symmetrical side surfaces of each first extension block 32 are provided with mounting grooves 321, and two abutting grooves 322 are formed on each first extension block 32, one abutting groove 322 is arranged beside each mounting groove 321, the abutting groove 322 communicates with the mounting groove 321, and the abutting groove 322 and the mounting groove 321 jointly form an L-shaped groove.

[0081] Referring to Figure 8 and Figure 10 , a supporting mechanism 5 is arranged in each mounting groove 321, and the supporting mechanism 5 includes a second extension block 51, a sliding assembly 52 and a second driving assembly 53. The second extension block 51 includes an extending part 511 and an abutting part 512, the extending part 511 is fixedly connected to the abutting part 512, and the extending part 511 and the abutting part 512 jointly form an L-shaped block. The extending part 511 and the abutting part 512 are arranged in the L-shaped groove and slide in the L-shaped groove.

[0082] Referring toFigure 10 The sliding assembly 52 comprises two third elastic members 521, which are elastic telescopic rods with built-in springs in the embodiment. The limiting groove 522 is formed in the inner wall of the mounting groove 321 away from the abutting groove 322, and the two third elastic members 521 are arranged in the limiting groove 522 and slide along the length direction of the limiting groove 522. One end of the third elastic member 521 away from the limiting groove 522 is fixedly connected to the side of the abutting portion 512 away from the extending portion 511.

[0083] The second driving assembly 53 first drives the abutting portion 512 to move away from the mounting groove 321, at this time, the third elastic member 521 moves along the length direction of the limiting groove 522, when the third elastic member 521 moves to the edge of the limiting groove 522, the side of the extending portion 511 close to the mounting groove 321 is parallel to the side wall of the first extending block 32, at this time, the second driving assembly 53 drives the second extending block 51 to move away from the limiting groove 522, so that the abutting portion 512 is inserted into the abutting groove 322, the extending portion 511 abuts against the side wall of the first extending block 32, and the side of the extending portion 511 away from the limiting groove 522 is parallel to the other side of the first extending block 32. The common area of the first extending block 32 and the extending portion 511 is the same as the area of the side of the first extending block 32.

[0084] Referring to Figure 8 and Figure 9 The second driving assembly 53 comprises two first electromagnets 531 and two second electromagnets 532, one of the first electromagnets 531 is fixedly installed on the inner wall of the abutting groove 322, and the other first electromagnet 531 is fixedly installed on the side of the abutting portion 512 close to the abutting groove 322, and the two first electromagnets 531 are parallel to each other. One of the second electromagnets 532 is fixedly installed on the inner wall of the mounting groove 321, and the other second electromagnet 532 is fixedly installed on the side wall of the abutting portion 512, and the two second electromagnets 532 are parallel to each other, and the first electromagnets 531 are perpendicular to the second electromagnets 532.

[0085] The two second electromagnets 532 are electrified, so that repulsion is generated between the two second electromagnets 532, thereby pushing the abutting portion 512 to slide along the length direction of the limiting groove 522, when the third elastic member 521 slides to the edge of the limiting groove 522, the two second electromagnets 532 are de-energized, and the two first electromagnets 531 are electrified, so that attraction is generated between the two first electromagnets 531, thereby driving the abutting portion 512 to slide toward the abutting groove 322 and then being inserted into the abutting groove 322.

[0086] Referring to Figure 3, the side wall of the mounting groove 321 of the first extension block 32 is provided with a telescopic groove 323, the first extension block 32 is provided with a side wrapping plate 324, the side wrapping plate 324 is parallel to the side wall of the first extension block 32 provided with the mounting groove 321, an insertion block 3241 is arranged between the side wrapping plate 324 and the inner wall of the telescopic groove 323, the insertion block 3241 is fixedly connected to one end of the side wrapping plate 324 close to the telescopic groove 323, the insertion block 3241 is matched with the telescopic groove 323, and a second elastic element 325 is arranged between the insertion block 3241 and the inner wall of the telescopic groove 323, and the second elastic element 325 adopts a spring in the embodiment, one end of the second elastic element 325 is fixedly connected with the insertion block 3241, and the other end of the second elastic element 325 is fixedly connected with the inner wall of the telescopic groove 323.

[0087] In the process that the abutting portion 512 moves out of the mounting groove 321, the side wrapping plate 324 is lifted at the same time, and then the second elastic element 325 is stretched, so that the side wrapping plate 324 is parallel to the side wall of the first extension block 32. In the process that the second elastic element 325 is stretched, the insertion block 3241 is not disengaged from the telescopic groove 323, facilitating subsequent recycling.

[0088] Referring to Figure 6 The assembled door frame further comprises a first adhesive plate 61 and a second adhesive plate 62, and a plurality of first adhesive plates 61 and a plurality of second adhesive plates 62 are arranged, the width and height of the first adhesive plate 61 are the same as the width and thickness of the sliding plate 112, and the length of the first adhesive plate 61 is the same as the length of the first extension block 32. The thickness of the second adhesive plate 62 is the same as the thickness of the side wrapping plate 324, the width of the second adhesive plate 62 is equal to the width of the side surface of the outer frame 11 minus the width of the first extension block 32, and the length of the second adhesive plate 62 is the same as the length of the first extension block 32.

[0089] When the sliding plate 112 slides upward, a gap exists between the bottom end of the sliding plate 112 and the inner bottom wall of the outer frame 11, and the length of the gap is equal to the total length of all the first extension blocks 32 on the top wall of the outer frame 11 at this time. At this time, the first adhesive plate 61 is adhered to the gap position to fill the gap, so as to ensure the integrity of the door frame. When the first extension block 32 slides to the top wall of the outer frame 11, a gap exists between the first extension block 32 and the sliding plate 112, and the second adhesive plate 62 is used to fill the gap, so as to ensure the integrity of the door frame.

[0090] The implementation principle of the embodiment of the application is as follows: when the height of the door frame needs to be adjusted, the bolt 121 on the top frame 12 is first pulled out to release the locking of the top frame 12, and the third electromagnet 41 is powered on to generate repulsion between the two third electromagnets 41, so as to push the first extension block 32 upward. When the first extension block 32 is at the position of the guide inclined surface 1111, the first elastic element 31 restores to push the first extension block 32 to move to the top surface of the outer frame 11, and to the top wall of the outer frame 11. At this time, the limiting column 22 is inserted into the positioning blind hole 24 to limit the first extension block 32.

[0091] At this time, the second electromagnet 532 is energized again, repulsive force is generated between the two second electromagnets 532, the abutting portion 512 is pushed to move out of the mounting slot 321, the second electromagnet 532 is disconnected, the first electromagnet 531 is turned on, attractive force is generated between the two first electromagnets 531, the abutting portion 512 is inserted into the abutting slot 322, and the extending portion 511 extends out of the mounting slot 321. In use, the first adhesive plate 61 and the second adhesive plate 62 are used to fill the gap generated in the moving process of the first extending block 32 and the sliding plate 112, so as to ensure the integrity of the door frame.

[0092] The embodiment of the application further discloses a mounting method of the assembled door frame.

[0093] S1: opening, opening a door opening on a wall surface;

[0094] S2: mounting, mounting the outer frame 11 and the top frame 12 on the inner wall of the door opening;

[0095] S3: adjusting, the top frame 12 is lifted by sliding the first extending block 32, the top frame 12 is abutted against the top wall in the door opening, and then the height of the door frame is adjusted;

[0096] S4: supporting and flattening, the second extending block 51 on the first extending block 32 which has extended out of the sliding groove 111 starts to slide, and the extending portion 511 extends out of the mounting slot 321 and is parallel to the first extending block 32;

[0097] S5: fixing, the top frame 12 and the adjacent first extending block 32 are locked to each other by the locking device 2.

[0098] S6: filling, the first adhesive plate 61 and the second adhesive plate 62 are used to fill the gap generated in the moving process of the sliding plate 112 and the first extending block 32.

[0099] The embodiments of the specific embodiment are the preferred embodiments of the application, and are not limited to the protection scope of the application, wherein the same parts are indicated by the same reference numerals. Therefore, equivalent changes made according to the structure, shape and principle of the application should be covered in the protection scope of the application.

Claims

1. An assembled door frame, comprising an outer frame (11) and a top frame (12), wherein the top frame (12) is mounted on the outer frame (11), characterized in that: A locking device (2) is provided between the outer frame (11) and the top frame (12); a sliding groove (111) is provided on the inner side wall of the outer frame (11); a guiding inclined surface (1111) is provided at one end of the sliding groove (111); a plurality of extension devices (3) are provided in the sliding groove (111); and the plurality of extension devices (3) are arranged in sequence along the length direction of the sliding groove (111); The extending device (3) comprises a first elastic member (31) and a first extending block (32), wherein the first extending block (32) is arranged in the sliding groove (111) and slides along the length direction of the sliding groove (111); A slide plate (112) is provided at the position of the slide groove (111), and the slide plate (112) is slidably connected to the side wall of the outer frame (11) and is used to cover the slide groove (111); The first elastic member (31) is arranged between the slide plate (112) and the first extension block (32), one end of the first elastic member (31) is fixedly connected to the slide plate (112), and the other end of the first elastic member (31) is fixedly connected to the first extension block (32); A locking device (2) is also provided between adjacent first extension blocks (32), and the locking device (2) is capable of fixing the adjacent first extension blocks (32); The outer frame (11) is provided with a first driving assembly (4) for driving the extension device (3) to move; when the door frame and the door opening are not matched in height, the locking device (2) is opened, and the first driving assembly (4) is opened, so that the first driving assembly (4) drives the first extension block (32) to move upward, and then moves to the top surface of the outer frame (11) under the guidance of the guide slope (1111), thereby increasing the overall height of the door frame.

2. The assembled door frame according to claim 1, characterized in that: The first extension block (32) is provided with a mounting groove (321), and there are two mounting grooves (321), and the two mounting grooves (321) are symmetrically arranged about the central axis of the first extension block (32); A flattening mechanism (5) is provided in each of the installation slots (321), and the flattening mechanism (5) comprises a second extension block (51), a sliding assembly (52), and a second driving assembly (53); The sliding assembly (52) is arranged between the second extension block (51) and the installation groove (321), and the second extension block (51) slides along the depth direction of the installation groove (321) through the sliding assembly (52); A second driving assembly (53) for driving the second extension block (51) to move is provided in each of the installation slots (321).

3. The assembled door frame according to claim 2, characterized in that: An abutment groove (322) is provided on the first extension block (32), and each of the mounting grooves (321) corresponds to one of the abutment grooves (322); The second extension block (51) comprises a protruding portion (511) and an abutting portion (512), wherein the protruding portion (511) is fixedly connected to the abutting portion (512); The second driving component (53) comprises a first electromagnet (531) and a second electromagnet (532), and two of each of the first electromagnet (531) and the second electromagnet (532) are provided; One of the first electromagnets (531) is installed on the inner wall of the abutting groove (322), and another of the first electromagnets (531) is installed on the abutting portion (512), and the two first electromagnets (531) are parallel to each other; One second electromagnet (532) is installed on the inner wall of the installation groove (321), and another second electromagnet (532) is installed on the abutting portion (512), and the two second electromagnets (532) are parallel to each other; The first electromagnet (531) and the second electromagnet (532) are perpendicular to each other.

4. An assembled door frame according to claim 2 or 3, characterized in that: A telescopic slot (323) is provided on one side of the first extension block (32) where the installation slot (321) is provided, and a side package plate (324) is provided on the first extension block (32); A second elastic member (325) is provided in the telescopic slot (323), one end of the second elastic member (325) is fixedly connected to the side package plate (324), and the other end of the second elastic member (325) is fixedly connected to the inside of the telescopic slot (323).

5. The assembled door frame according to claim 2, characterized in that: A limiting groove (522) is provided on the inner wall of each mounting groove (321), and the sliding assembly (52) includes a third elastic member (521), one end of the third elastic member (521) is fixedly connected to the second extension block (51), and the other end of the third elastic member (521) is arranged in the limiting groove (522) and slides in the limiting groove (522).

6. The assembled door frame according to claim 1, characterized in that: The locking device (2) includes a fourth elastic member (21) and a limiting column (22), the top surface of each first extension block (32) is provided with two limiting blind holes (23), the top surface of the outer frame (11) is also provided with two limiting blind holes (23), and the limiting column (22) is arranged in the limiting blind hole (23) and slides in the limiting blind hole (23); The fourth elastic member (21) is arranged between the limiting column (22) and the inner wall of the limiting blind hole (23), one end of the fourth elastic member (21) is fixedly connected to the limiting column (22), and the other end of the fourth elastic member (21) is fixedly connected to the inner wall of the limiting blind hole (23); A spherical surface (221) is provided at one end of the limiting column (22) away from the limiting blind hole (23); Two positioning blind holes (24) are provided on the bottom surface of each first extension block (32), and two positioning blind holes (24) are also provided on the bottom surface of the top frame (12). The positioning blind holes (24) correspond to the positions of the limiting blind holes (23), and the positioning blind holes (24) are adapted to the limiting columns (22).

7. The assembled door frame according to claim 1, characterized in that: The first driving assembly (4) includes a third electromagnet (41), and there are two third electromagnets (41). The two third electromagnets (41) are parallel to each other, one of the third electromagnets (41) is mounted on the inner wall of the outer frame (11), and the other third electromagnet (41) is mounted on the first extension block (32) at the bottom.

8. The assembled door frame according to claim 1, characterized in that: A plurality of balls (1112) are provided on the inner wall of the chute (111), and the plurality of balls (1112) are rollingly connected to the inner wall of the chute (111).

9. A method for installing an assembled door frame according to claim 3, characterized in that: The installation method comprises the following steps: S1: Opening, opening a door on the wall; S2: Install the outer frame (11) and the top frame (12) on the inner wall of the door; S3: Adjustment: by sliding the first extension block (32), the top frame (12) is lifted up, so that the top frame (12) is pressed against the top wall inside the doorway, thereby adjusting the height of the door frame; S4: Flattening: The second extension block (51) on the first extension block (32) that has extended out of the slide groove (111) begins to slide, so that the extension portion (511) extends out of the mounting groove (321) and is parallel to the first extension block (32); S5: Fixing: locking the top frame (12) and the adjacent first extension block (32) with each other through the locking device (2).

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