A modular door frame for quick installation and disassembly

Abstract

The present invention discloses a modular door frame for quick installation and disassembly, belonging to the technical field of door frames. The upper vertical frame is detachably installed on both sides of the bottom of the arc frame part, and a cross beam is also installed between the upper vertical frames; the locking mechanism includes a threaded rod movably installed in the rotation cavity, a toothed ring is arranged in the middle of the threaded rod, two groups of racks meshing with the toothed ring are arranged in the meshing cavity, and a clamping plate arranged in the side perimeter is fixedly connected to the outer side of the rack; a linkage threaded ring meshing with the threaded rod is installed in the linkage cavity, and the linkage threaded ring is fixed to the inner side of the wall pier; a plurality of locking parts cooperating with the threaded rod are movably arranged inside the linkage threaded ring, and a locking ring sleeved on the periphery of the threaded rod is installed in the limiting cavity. The present invention can synchronously lock the inner wall and both sides of the wall pier through the locking mechanism, and the locking ring squeezes the locking parts. At this time, the extrusion part locks the threads on the threaded rod, avoiding loosening of the threaded rod and the linkage threaded ring, and this design improves the stability and service life.

Description

Technical Field

[0001] The present invention relates to the technical field of door frames, and specifically to a modular door frame for quick installation and disassembly. Background Art

[0002] A door is an entrance or exit of a building or a device that can be opened and closed at the entrance or exit. It is an entity that divides a limited space and can connect and block the entrances and exits of two or more spaces. A door pocket is an architectural decoration term, referring to the two door frames inside and outside the door, and some also directly call it a door frame. Its main functions are to fix the door leaf, protect the corner of the wall, and for decoration, etc. It is commonly used in the decoration process to protect the door from scratches, corrosion, damage, dirt, etc. For various existing wall panel materials, the cut and assembled door and window frame boards, such as the cut tongue-and-groove joints lapping with the lintel board, the phenomenon of inverted V-shaped cracking at the lap joint is relatively common.

[0003] The patent application with the publication number CN117211646A discloses an aluminum-plastic composite door and window fixed installation structure, including a movable box, a fixed box, and a window body. The fixed box is arranged on the window body, and a groove adapted to the movable box is formed on the fixed box. The installation structure includes: a fixed execution module arranged on the movable box for connecting the movable box, the fixed box, and the wall; and a trigger structure arranged between the movable box and the fixed execution module, which controls the fixed execution module to work when the fixed box and the movable box are in contact; a locking structure arranged between the slide plate and the trigger structure for fixedly connecting the trigger structure and the slide plate; the whole device has a high degree of automation, getting rid of the traditional way of fixing with bolts and expansion screws, and there is no need for staff to use auxiliary work for the fixing of doors and windows, shortening the installation cycle of doors and windows.

[0004] However, the stability of the above disclosed door and window installation structure is general, it cannot fix the wall pier from multiple directions, and the installation process is time-consuming and laborious, not convenient for quick disassembly, lacking a quick splicing and locking structure. Summary of the Invention

[0005] The purpose of the present invention is to provide a modular door frame for quick installation and disassembly to solve the problems that the stability of the existing door and window installation structure is general, it cannot fix the wall pier from multiple directions, the installation process is time-consuming and laborious, not convenient for quick disassembly, and lacking a quick splicing and locking structure, etc.

[0006] To achieve the above object, the technical solution of the present invention is: a modular door frame for quick installation and disassembly, including an arc frame part, a vertical frame part and a locking mechanism. The arc frame part includes a first arc frame and a second arc frame that are spliced with each other; the vertical frame part is composed of an upper vertical frame and a lower vertical frame. The upper vertical frame is detachably installed on both sides of the bottom of the arc frame part, and a cross beam is also installed between the upper vertical frames. The cross beam is used for quickly locking the upper vertical frames and the arc frame part; a top perimeter is provided on the outer sides of the first arc frame and the second arc frame for sealing the wall pier; side perimeters for sealing the wall pier are provided on the front and rear sides of the upper vertical frame and the lower vertical frame; the locking mechanism is arranged inside the upper vertical frame and the lower vertical frame. Rotating cavities, meshing cavities, limiting cavities and linkage cavities are sequentially arranged inside the upper vertical frame and the lower vertical frame from outside to inside; the locking mechanism includes a threaded rod movably installed in the rotating cavity. A gear ring is arranged in the middle of the threaded rod, and two groups of racks meshing with the gear ring are arranged in the meshing cavity. The outer sides of the racks are fixedly connected with clamping plates movably arranged in the side perimeters; the clamping plates are used for fixing both sides of the wall pier; a linkage threaded ring meshing with the threaded rod is slidably installed in the linkage cavity. A plurality of second locking pins are fixedly arranged inside the linkage threaded ring. The linkage threaded ring is used for fixing the inner side of the wall pier; a plurality of locking parts cooperating with the threaded rod are movably arranged inside the linkage threaded ring. A locking ring sleeved around the threaded rod is installed in the limiting cavity. The locking ring is used for fixing the locking parts and preventing them from accidentally detaching.

[0007] As a further solution of the present invention: a plurality of positioning columns are arranged inside the first arc frame, and a plurality of positioning holes cooperating with the positioning columns are arranged inside the second arc frame; installation grooves are arranged between the first arc frame and the second arc frame, and glass is movably installed in the installation grooves.

[0008] As a further solution of the present invention: quick insertion blocks are arranged at the bottoms of the first arc frame and the second arc frame, and a through cavity one is arranged inside the quick insertion blocks; two groups of quick insertion cavities cooperating with the quick insertion blocks are arranged at the tops of the upper vertical frames, and a through cavity two passing through the quick insertion cavities is arranged inside the upper vertical frames; shrinkage cavities are arranged on both sides of the cross beam, a sliding seat is slidably arranged in the shrinkage cavities, a locking plate is fixedly arranged on the outer side of the sliding seat, and the locking plate sequentially passes through the through cavity one and the through cavity two to lock the quick insertion blocks and the quick insertion cavities.

[0009] As a further solution of the present invention: a chute communicating with the shrinkage cavity is arranged at the bottom of the cross beam, a convex block slidably arranged in the chute is arranged at the bottom of the sliding seat, and the inner side of the sliding seat is connected with the inner wall of the shrinkage cavity through a plurality of locking springs.

[0010] As a further solution of the present invention: a rotating groove is provided on the inner wall of the rotating cavity, a rotating convex ring cooperating with the rotating groove is provided on the outer wall of the threaded rod; and a groove is provided on the outer side of the threaded rod.

[0011] As a further solution of the present invention: connecting cavities are provided on both sides of the meshing cavity, and a clamping cavity connected to the connecting cavity is provided on the inner side of the side edge; a connecting arm slidably arranged in the connecting cavity is fixedly arranged on the outer side of the rack, and the clamping plate is fixedly arranged on the outer side of the connecting arm and movably arranged in the clamping cavity; and a plurality of groups of first locking pins are also arranged on the outer wall of the clamping plate.

[0012] As a further solution of the present invention: a plurality of arc-shaped slots are provided on the inner side of the linkage threaded ring, an arc-shaped extrusion cavity is provided on the inner side of the arc-shaped slots, a locking cavity penetrating the linkage threaded ring is provided on the inner side of the arc-shaped extrusion cavity, and the locking piece is slidably arranged in the locking cavity; a plurality of locking arc plates are provided on the outer wall of the locking ring, and the locking arc plates are movably arranged in the arc-shaped extrusion cavity to squeeze and lock the locking piece.

[0013] As a further solution of the present invention: the locking member includes a locking portion and an extrusion portion, a plurality of mounting holes are provided inside the arc-shaped extrusion cavity, a return spring is arranged inside the mounting hole, and the extrusion portion is connected to the outer side of the return spring.

[0014] As a further solution of the present invention: a sealed cavity is formed on the inner wall of the upper vertical frame and the lower vertical frame, a cover plate is installed in the sealed cavity, a positioning cavity cooperating with the rotating cavity is formed in the middle of the cover plate, operating cavities are formed on both sides of the rotating cavity, and the sealed cavity is connected with the meshing cavity through the operating cavity; a plurality of groups of toggle blocks are provided on the outer wall of the locking ring, and bolts are installed at the diagonal positions of the cover plate.

[0015] As a further solution of the present invention: a plurality of sliding arms are arranged on the outer wall of the linkage threaded ring, and a plurality of sliding cavities cooperating with the sliding arms are opened on the inner wall of the linkage cavity.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention can quickly assemble the first arc frame and the second arc frame through the positioning column and the positioning hole, and then insert the quick-insertion cavity at the top of the upper vertical frame into the quick-insertion block, and then make the locking plates on both sides of the crossbeam pass through the through cavity 1 and the through cavity 2 in turn to lock the quick-insertion block and the quick-insertion cavity. Finally, the lower vertical frame is installed to limit the upper vertical frame. This design is ingenious and effective, which improves the practicality and disassembly and assembly efficiency of the modular door frame.

[0018] 2. The locking mechanism of the present invention can synchronously clamp and lock the inner wall and both sides of the wall pier, thereby improving the safety and service life of the door frame. When the threaded rod rotates clockwise, under the meshing of the rack and the gear ring, the clamping plates on both sides will move closer to the middle and clamp both sides of the wall pier. And at this time, under the combined drive of the threads, the linkage threaded ring will also move closer to the wall pier and lock its inner wall. Finally, the locking ring squeezes the locking member, and at this time, the extrusion part slides inward and locks the threads on the threaded rod, preventing the threaded rod and the linkage threaded ring from loosening after long-term use. This design improves the stability and service life of the modular door frame for quick installation and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further explained below with reference to the drawings and embodiments:

[0020] Figure 1 is the three-dimensional structure diagram of the present invention;

[0021] Figure 2 is the three-dimensional structure diagram of the arc frame in the present invention;

[0022] Figure 3 is the three-dimensional structure diagram of the upper vertical frame in the present invention;

[0023] Figure 4 is the cross-sectional view of the cross beam in the present invention;

[0024] Figure 5 is the partial cross-sectional view of the arc frame in the present invention;

[0025] Figure 6 is the partial cross-sectional view of the present invention;

[0026] Figure 7 is the three-dimensional structure diagram of the locking structure in the present invention;

[0027] Figure 8 is the three-dimensional structure diagram of the threaded rod in the present invention;

[0028] Figure 9 is the three-dimensional structure diagram of the linkage threaded ring in the present invention;

[0029] Figure 10 is the cross-sectional view of the linkage threaded ring in the present invention;

[0030] Figure 11 is the three-dimensional structure diagram of the locking ring in the present invention;

[0031] Figure 12 is the three-dimensional structure diagram of the locking member in the present invention;

[0032] Figure 13 is the partial three-dimensional structure diagram of the vertical frame part in the vertical direction in the present invention;

[0033] Figure 14 It is a partial three-dimensional structural diagram of the vertical frame part in the horizontal direction of the present invention.

[0034] Description of reference numerals:

[0035] 1. Arc frame; 101. First arc frame; 102. Second arc frame; 103. Top edge; 104. Mounting groove; 105. Glass; 106. Quick-insert block; 107. Through cavity 1; 108. Positioning column; 109. Positioning hole; 110. Quick-insert cavity; 111. Through cavity 2; 112. Crossbeam; 113. Contraction cavity; 114. Slide groove; 115. Sliding seat; 116. Locking plate; 117. Bump; 118. Locking spring;

[0036] 2. Mullion part; 201. Upper mullion; 202. Lower mullion; 203. Side edge; 204. Rotation cavity; 205. Engagement cavity; 206. Limit cavity; 207. Linkage cavity; 208. Rotation groove; 209. Communication cavity; 210. Clamping cavity; 211. Operation cavity; 212. Sliding cavity; 213. Sealing cavity; 214. Cover plate; 215. Positioning cavity; 216. Bolt;

[0037] 3. Locking mechanism; 301. Threaded rod; 302. Groove; 303. Rotating convex ring; 304. Gear ring; 305. Rack; 306. Connecting arm; 307. Clamping plate; 308. First locking pin; 309. Linked threaded ring; 310. Second locking pin; 311. Sliding arm; 312. Arc-shaped slot; 313. Arc-shaped extrusion cavity; 314. Locking cavity; 315. Locking piece; 316. Locking part; 317. Extrusion part; 318. Mounting hole; 319. Reset spring; 320. Locking ring; 321. Locking arc plate; 322. Toggle block. DETAILED DESCRIPTION

[0038] The following will be combined with the attached Figures 1 to 14 The technical solution of the present invention is described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] The present invention provides a modular door frame that can be quickly installed and disassembled by improvement. Figures 1 - 14As shown in the figure, it includes an arc frame part 1, a vertical frame part 2 and a locking mechanism 3. The arc frame part 1 includes a first arc frame 101 and a second arc frame 102 that are spliced together; the vertical frame part 2 is composed of an upper vertical frame 201 and a lower vertical frame 202. The upper vertical frame 201 is detachably installed on both sides of the bottom of the arc frame part 1. A cross beam 112 is also installed between the upper vertical frames 201, and the cross beam 112 is used to quickly lock the upper vertical frame 201 and the arc frame part 1; a top perimeter 103 for sealing the wall pier is arranged on the outer sides of the first arc frame 101 and the second arc frame 102; side perimeters 203 for sealing the wall pier are arranged on the front and rear sides of the upper vertical frame 201 and the lower vertical frame 202; the locking mechanism 3 is arranged inside the upper vertical frame 201 and the lower vertical frame 202. A rotating cavity 204, an engaging cavity 205, a limiting cavity 206 and a linkage cavity 207 are successively arranged inside the upper vertical frame 201 and the lower vertical frame 202 from the outside to the inside; the locking mechanism 3 includes a threaded rod 301 movably installed in the rotating cavity 204. A toothed ring 304 is arranged in the middle of the threaded rod 301. Two groups of racks 305 meshing with the toothed ring 304 are arranged in the engaging cavity 205. The outer sides of the racks 305 are fixedly connected with clamping plates 307 movably arranged in the side perimeter 203; the clamping plates 307 are used to fix both sides of the wall pier; a linkage threaded ring 309 meshing with the threaded rod 301 is slidably installed in the linkage cavity 207. A plurality of second locking pins 310 are fixedly arranged on the inner side of the linkage threaded ring 309, and the linkage threaded ring 309 is used to fix the inner side of the wall pier; a plurality of locking members 315 cooperating with the threaded rod 301 are movably arranged inside the linkage threaded ring 309. A locking ring 320 sleeved around the threaded rod 301 is installed in the limiting cavity 206, and the locking ring 320 is used to fix the locking members 315 and prevent them from accidentally detaching.

[0040] In this embodiment, the modular door frame for quick installation and disassembly mainly includes three parts: an arc frame part 1, a vertical frame part 2, and a locking mechanism 3. When the device is in use, first, the first arc frame 101 and the second arc frame 102 can be quickly assembled through the positioning posts 108 and the positioning holes 109. Then, the quick insertion cavity 110 at the top of the upper vertical frame 201 is inserted onto the quick insertion block 106. By sliding the convex block 117 towards the middle, the sliding seat 115 is driven to contract into the contraction cavity 113. When it is installed in the appropriate position, after releasing the convex block 117, under the action of the locking spring 118, the locking plates 116 on both sides sequentially pass through the first through cavity 107 and the second through cavity 111 to lock the quick insertion block 106 and the quick insertion cavity 110. Finally, the lower vertical frame 202 is installed to limit the upper vertical frame 201. When the threaded rod 301 rotates clockwise, at this time, under the cooperation of the rack 305 and the gear ring 304, the clamping plates 307 on both sides will move closer to the middle. And at this time, under the driving of the thread cooperation, the linkage thread ring 309 will also move closer to the wall pier and lock its inner wall. Then, the locking arc plate 321 is inserted into the arc-shaped slot 312, and then the locking ring 320 is rotated clockwise. When the locking arc plate 321 presses the extrusion part 317, the locking part 315 slides inward along the locking cavity 314 to lock the thread on the threaded rod 301.

[0041] Refer to the appendix Figure 1 - Appendix Figure 2 , multiple groups of positioning posts 108 are arranged on the inner side of the first arc frame 101, and multiple groups of positioning holes 109 that cooperate with the positioning posts 108 are opened on the inner side of the second arc frame 102; mounting grooves 104 are opened between the first arc frame 101 and the second arc frame 102, and glass 105 is movably mounted in the mounting grooves 104.

[0042] In this embodiment, in order to facilitate the quick locking of the arc frame part 1 and the glass 105, a structure of positioning posts 108 and positioning holes 109 that cooperate with each other is designed.

[0043] Refer to the appendix Figure 2 - Appendix Figure 3 , quick insertion blocks 106 are arranged at the bottoms of the first arc frame 101 and the second arc frame 102, and a through first through cavity 107 is opened inside the quick insertion blocks 106; two groups of quick insertion cavities 110 that cooperate with the quick insertion blocks 106 are opened at the top of the upper vertical frame 201, and a second through cavity 111 that penetrates the quick insertion cavity 110 is opened inside the upper vertical frame 201; contraction cavities 113 are opened on both sides of the cross beam 112, a sliding seat 115 is slidably arranged in the contraction cavities 113, a locking plate 116 is fixedly arranged on the outer side of the sliding seat 115, and the locking plate 116 sequentially passes through the first through cavity 107 and the second through cavity 111 to lock the quick insertion block 106 and the quick insertion cavity 110.

[0044] In this embodiment: During installation, insert the quick-insert cavity 110 at the top of the upper vertical frame 201 onto the quick-insert block 106, then lock the upper vertical frame 201 and the arc frame part 1 with the locking plates 116 on both sides of the cross beam 112, and finally install the lower vertical frame 202 to limit and install the upper vertical frame 201.

[0045] Refer to the appendix Figure 4 - appendix Figure 5 , a chute 114 communicating with the contraction cavity 113 is opened at the bottom of the cross beam 112, a convex block 117 slidably arranged in the chute 114 is arranged at the bottom of the sliding seat 115, and the inner side of the sliding seat 115 is connected to the inner wall of the contraction cavity 113 through a plurality of locking springs 118.

[0046] In this embodiment: When installing the cross beam 112, first slide the convex block 117 towards the middle, thereby driving the sliding seat 115 to contract into the contraction cavity 113. When installed in the appropriate position, after releasing the convex block 117, under the action of the locking spring 118, the locking plates 116 on both sides sequentially pass through the first through cavity 107 and the second through cavity 111 to lock the quick-insert block 106 and the quick-insert cavity 110. When disassembling the cross beam 112, slide the convex block 117 towards the middle, thereby driving the sliding seat 115 to contract into the contraction cavity 113. At this time, the locking plates 116 sequentially disengage from the first through cavity 107 and the second through cavity 111 to complete unlocking.

[0047] Refer to the appendix Figure 7 and appendix Figure 13 , a rotating groove 208 is opened on the inner wall of the rotating cavity 204, and a rotating convex ring 303 matching with it is arranged on the outer wall of the threaded rod 301; a groove 302 is opened on the outer side of the threaded rod 301.

[0048] In this embodiment: In order to ensure that the threaded rod 301 rotates freely relative to the rotating cavity 204, thereby further driving the clamping plate 307 and the linkage threaded ring 309 to clamp and fix the wall, a structure of the rotating convex ring 303 and the rotating groove 208 that cooperate with each other is designed. In order to facilitate driving the threaded rod 301 to rotate through an external tool, the groove 302 is opened.

[0049] Refer to the appendix Figure 7 and appendix Figure 13 - appendix Figure 14 , communication cavities 209 are opened on both sides of the meshing cavity 205, a clamping cavity 210 communicating with the communication cavities 209 is opened on the inner side of the side surrounding edge 203; a connecting arm 306 slidably arranged in the communication cavity 209 is fixedly arranged on the outer side of the rack 305, a clamping plate 307 is fixedly arranged on the outer side of the connecting arm 306 and is movably arranged in the clamping cavity 210; a plurality of first locking pins 308 are also arranged on the outer wall of the clamping plate 307.

[0050] In this embodiment: when the threaded rod 301 rotates clockwise, with the cooperation of the rack 305 and the gear ring 304, the clamping plates 307 on both sides will move toward the middle, and the first locking pin 308 will also be inserted into the wall to improve stability.

[0051] See attached Figure 10 -Attached Figure 12 A plurality of arc-shaped slots 312 are provided on the inner side of the linkage threaded ring 309, an arc-shaped extrusion cavity 313 is provided on the inner side of the arc-shaped slots 312, a locking cavity 314 penetrating the linkage threaded ring 309 is provided on the inner side of the arc-shaped extrusion cavity 313, and a locking member 315 is slidably arranged in the locking cavity 314; a plurality of locking arc plates 321 are provided on the outer wall of the locking ring 320, and the locking arc plates 321 are movably arranged in the arc-shaped extrusion cavity 313 and squeeze and lock the locking member 315.

[0052] In this embodiment, when the locking ring 320 needs to be installed, the locking arc plate 321 is first inserted into the arc-shaped slot 312, and then the locking ring 320 is rotated clockwise. When the locking arc plate 321 presses the pressing portion 317, the locking member 315 slides inward along the locking cavity 314 and locks the thread on the threaded rod 301.

[0053] See attached Figure 10 -Attached Figure 12 The locking member 315 includes a locking portion 316 and an extrusion portion 317 . A plurality of mounting holes 318 are provided inside the arc-shaped extrusion cavity 313 . A return spring 319 is provided inside the mounting hole 318 . The extrusion portion 317 is connected to the outer side of the return spring 319 .

[0054] In this embodiment: when the door frame needs to be removed as a whole, the locking ring 320 is rotated counterclockwise to disengage the locking arc plate 321 from the extrusion portion 317. At this time, under the action of the reset spring 319, the locking member 315 automatically pops outward, and the locking portion 316 disengages from the threaded ring and unlocks it.

[0055] See attached Figure 6 and attached Figure 13 -Attached Figure 14 A sealed cavity 213 is provided on the inner wall of the upper vertical frame 201 and the lower vertical frame 202, a cover plate 214 is installed in the sealed cavity 213, a positioning cavity 215 cooperating with the rotating cavity 204 is provided in the middle of the cover plate 214, and an operating cavity 211 is provided on both sides of the rotating cavity 204, and the sealed cavity 213 is connected with the meshing cavity 205 through the operating cavity 211; a plurality of groups of toggle blocks 322 are provided on the outer wall of the locking ring 320, and bolts 216 are installed at the diagonal of the cover plate 214.

[0056] In this embodiment: after the clamping plate 307 and the linked threaded ring 309 have locked the wall, a toggle block 322 is designed to facilitate the rotation of the locking ring 320, thereby further locking and unlocking the locking member 315. In order to facilitate the rotation of the locking ring 320 from the outside by a professional tool, an operating cavity 211 is designed. After the door frame is installed, a cover plate 214 is designed to shield the operating cavity 211 from direct exposure to the air.

[0057] See attached Figure 9 and attached Figure 13 A plurality of sliding arms 311 are arranged on the outer wall of the linkage threaded ring 309 , and a plurality of sliding cavities 212 cooperating with the sliding arms 311 are opened on the inner wall of the linkage cavity 207 .

[0058] In this embodiment, driven by the threaded engagement, in order to ensure that the linkage threaded ring 309 slides inward along the linkage cavity 207 and thereby fixes the inner wall of the buttress, a sliding arm 311 and a sliding cavity 212 structure that cooperate with each other are designed.

[0059] Working principle of the present invention: When the device is used, the first arc frame 101 and the second arc frame 102 can be quickly assembled through the positioning column 108 and the positioning hole 109, and then the quick-insertion cavity 110 at the top of the upper vertical frame 201 is inserted into the quick-insertion block 106. The protrusion 117 slides toward the middle, thereby driving the sliding seat 115 to shrink into the shrinking cavity 113. After being installed in a suitable position, the protrusion 117 is released, and under the action of the locking spring 118, the locking plates 116 on both sides pass through the through cavity 107 and the through cavity 2 111 in turn to lock the quick-insertion block 106 and the quick-insertion cavity 110, and finally the lower vertical frame 202 is installed to limit the upper vertical frame 201. When the threaded rod 301 rotates clockwise, at this time, under the cooperation of the rack 305 and the gear ring 304, the clamping plates 307 on both sides will move closer to the middle. At this time, driven by the thread, the linked thread ring 309 will also move toward the wall and lock its inner wall. Then the locking arc plate 321 is inserted into the arc slot 312, and then the locking ring 320 is rotated clockwise. When the locking arc plate 321 presses the pressing part 317, the locking member 315 slides inward along the locking cavity 314 and locks the thread on the threaded rod 301.

[0060] When disassembly is required, rotate the locking ring 320 counterclockwise to disengage the locking arc plate 321 from the extrusion part 317. At this time, under the action of the return spring 319, the locking member 315 automatically pops outwards, and the locking part 316 disengages from the threaded ring and unlocks it. Then rotate the threaded rod 301 counterclockwise. At this time, under the cooperation of the rack 305 and the gear ring 304, the clamping plates 307 on both sides will move away from each other. And at this time, under the driving of the thread cooperation, the linkage threaded ring 309 will also move away from the outside and unlock its inner wall.

[0061] The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the broadest scope consistent with the principles and inventive features disclosed herein.

Claims

1. A modular door frame for quick installation and disassembly, comprising an arc frame part (1), a vertical frame part (2) and a locking mechanism (3), characterized in that: The arc frame part (1) includes a first arc frame (101) and a second arc frame (102) spliced with each other; the vertical frame part (2) is composed of an upper vertical frame (201) and a lower vertical frame (202). The upper vertical frame (201) is detachably installed on both sides of the bottom of the arc frame part (1). A cross beam (112) is also installed between the upper vertical frames (201), and the cross beam (112) is used to quickly lock the upper vertical frame (201) and the arc frame part (1). A top perimeter (103) for sealing the wall pier is provided on the outer sides of the first arc frame (101) and the second arc frame (102); side perimeters (203) for sealing the wall pier are provided on the front and rear sides of the upper vertical frame (201) and the lower vertical frame (202); the locking mechanism (3) is arranged inside the upper vertical frame (201) and the lower vertical frame (202), and a rotating cavity (204), an engaging cavity (205), a limiting cavity (206), and a linkage cavity (207) which are sleeved in sequence from outside to inside are opened inside the upper vertical frame (201) and the lower vertical frame (202). The locking mechanism (3) includes a threaded rod (301) movably installed in the rotating cavity (204). A gear ring (304) is arranged in the middle of the threaded rod (301). Two groups of racks (305) meshing with the gear ring (304) are arranged in the engaging cavity (205). A clamping plate (307) which is movably arranged inside the side perimeter (203) is fixedly connected to the outer side of the rack (305); the clamping plate (307) is used to fix both sides of the wall pier; a linkage threaded ring (309) meshing with the threaded rod (301) is slidably installed in the linkage cavity (207). A plurality of second locking pins (310) are fixedly arranged on the inner side of the linkage threaded ring (309), and the linkage threaded ring (309) is used to fix the inner side of the wall pier; a plurality of locking members (315) cooperating with the threaded rod (301) are movably arranged inside the linkage threaded ring (309). A locking ring (320) sleeved on the outer periphery of the threaded rod (301) is installed in the limiting cavity (206), and the locking ring (320) is used to fix the locking members (315) and prevent them from accidentally detaching.

2. The modular door frame for quick installation and disassembly according to claim 1, characterized in that: A plurality of positioning columns (108) are arranged on the inner side of the first arc frame (101), and a plurality of positioning holes (109) cooperating with the positioning columns (108) are opened on the inner side of the second arc frame (102); mounting grooves (104) are opened between the first arc frame (101) and the second arc frame (102), and glass (105) is movably installed in the mounting grooves (104).

3. A modular door frame for quick installation and disassembly according to claim 1, characterized in that: The bottoms of the first arc frame (101) and the second arc frame (102) are provided with quick insertion blocks (106), and a through cavity one (107) is opened inside the quick insertion blocks (106); two groups of quick insertion cavities (110) that cooperate with the quick insertion blocks (106) are opened at the top of the upper vertical frame (201), and a through cavity two (111) that penetrates the quick insertion cavities (110) is opened inside the upper vertical frame (201); contraction cavities (113) are opened on both sides of the cross beam (112), a sliding seat (115) is slidably arranged in the contraction cavities (113), a locking plate (116) is fixedly arranged on the outer side of the sliding seat (115), and the locking plate (116) sequentially passes through the cavity one (107) and the cavity two (111) to lock the quick insertion blocks (106) and the quick insertion cavities (110).

4. A modular door frame for quick installation and disassembly according to claim 3, characterized in that: A chute (114) communicated with the contraction cavity (113) is opened at the bottom of the cross beam (112), a convex block (117) slidably arranged in the chute (114) is arranged at the bottom of the sliding seat (115), and the inner side of the sliding seat (115) is connected to the inner wall of the contraction cavity (113) through a plurality of locking springs (118).

5. A modular door frame for quick installation and disassembly according to claim 1, characterized in that: A rotating groove (208) is opened on the inner wall of the rotating cavity (204), and a rotating convex ring (303) that cooperates with it is arranged on the outer wall of the threaded rod (301); a groove (302) is opened on the outer side of the threaded rod (301).

6. A modular door frame for quick installation and disassembly according to any one of claims 1-4, characterized in that: Communication cavities (209) are opened on both sides of the meshing cavity (205), a clamping cavity (210) communicated with the communication cavities (209) is opened on the inner side of the side surround (203); a connecting arm (306) slidably arranged in the communication cavities (209) is fixedly arranged on the outer side of the rack (305), a clamping plate (307) is fixedly arranged on the outer side of the connecting arm (306) and is movably arranged in the clamping cavity (210); a plurality of first locking pins (308) are also arranged on the outer wall of the clamping plate (307).

7. A modular door frame for quick installation and disassembly according to any one of claims 1-4, characterized in that: A plurality of arc-shaped slots (312) are opened on the inner side of the linkage threaded ring (309), an arc-shaped extrusion cavity (313) is opened on the inner side of the arc-shaped slots (312), a locking cavity (314) that penetrates the linkage threaded ring (309) is opened on the inner side of the arc-shaped extrusion cavity (313), and a locking member (315) is slidably arranged in the locking cavity (314); a plurality of locking arc plates (321) are arranged on the outer wall of the locking ring (320), the locking arc plates (321) are movably arranged in the arc-shaped extrusion cavity (313) and squeeze and lock the locking member (315).

8. A modular door frame for quick installation and disassembly according to claim 7, characterized in that: The locking member (315) includes a locking portion (316) and an extrusion portion (317), a plurality of mounting holes (318) are opened inside the arc-shaped extrusion cavity (313), a return spring (319) is arranged inside the mounting holes (318), and the extrusion portion (317) is connected to the outer side of the return spring (319).

9. A modular door frame for quick installation and disassembly according to claim 1, characterized in that: A sealed cavity (213) is provided on the inner walls of the upper vertical frame (201) and the lower vertical frame (202), a cover plate (214) is installed in the sealed cavity (213), a positioning cavity (215) cooperating with the rotating cavity (204) is provided in the middle of the cover plate (214), operating cavities (211) are provided on both sides of the rotating cavity (204), and the sealed cavity (213) is connected with the meshing cavity (205) through the operating cavity (211); a plurality of groups of toggle blocks (322) are provided on the outer wall of the locking ring (320), and bolts (216) are installed at the diagonal positions of the cover plate (214).

10. A modular door frame for quick installation and disassembly according to any one of claims 1-4, characterized in that: A plurality of groups of sliding arms (311) are arranged on the outer wall of the linkage threaded ring (309), and a plurality of groups of sliding cavities (212) cooperating with the sliding arms (311) are provided on the inner wall of the linkage cavity (207).

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