Fireproof invisible door mounting structure

Abstract

The application discloses a fireproof invisible door mounting structure and relates to the technical field of invisible door mounting. The mounting structure comprises a door hole wall body, a mounting mechanism and a door plate. Three groups of outer keels are movably arranged on the inner walls of the door plate and connected with the inner keels through hinges. The mounting mechanism further comprises a sealing structure for sealing the gap between the bottom of the door plate and the ground. The outer keel, the inner keel, the adjusting inclined block and the adjusting bolt are arranged to enable the three edges of the door frame to be finely adjusted. During installation, the adjusting bolt is only rotated to drive the adjusting inclined block to slide along the inner wall of the outer keel, and then the inner keel is adjusted outward or inward relative to the outer keel. The inner keel is adjusted to be perpendicular to the ground, so that the flatness of the door plate after installation is ensured. Compared with the method of inserting a gasket, the structure does not need to be repeatedly tried and adjusted, the adjusting process is continuous and controllable, and the door plate can still be finely adjusted by rotating the bolt after being fixed, so that the installation efficiency is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of concealed door installation technology, specifically a fireproof concealed door installation structure. Background Technology

[0002] Fireproof concealed doors, as a functional door and window product that combines fire safety and interior decoration aesthetics, are increasingly widely used in high-end residences, hotels, and commercial spaces.

[0003] However, in actual construction projects, due to errors in concrete pouring, masonry construction, or subsequent plastering, the structural deviation of the door opening results in the door panel being tilted to the ground after the fixed door frame is installed inside the door opening. In existing technologies, installers usually correct this by inserting steel shims or wooden wedges into one side of the door frame. The thickness of the shims requires repeated trial and error by the installers, which is inefficient. Furthermore, once the shims are fixed, they cannot be fine-tuned. Therefore, we propose a fireproof concealed door installation structure.

[0004] Combining the above issues, we find that existing products on the market are difficult to avoid all of these problems simultaneously during use. Even if they can be solved, they require external tools, thus failing to achieve the desired effect. Therefore, we propose a fireproof concealed door installation structure. Summary of the Invention

[0005] The purpose of this invention is to provide a fireproof concealed door installation structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a fireproof concealed door installation structure, comprising a door opening wall, an installation mechanism, and a door panel, wherein the installation mechanism is installed inside the door opening wall, and the door panel is installed inside the installation mechanism via hinges; The installation mechanism includes an outer keel and an inner keel. The outer keel is fixed to the three sides of the wall inside the door opening by expansion bolts. The three sets of outer keels are movably provided with inner keels facing the inner wall of the door panel. One side wall of the door panel is connected to the inner keel by a hinge. The installation mechanism also includes a sealing structure for sealing the gap between the bottom of the door panel and the ground.

[0007] Preferably, the end sidewalls of the three sets of outer keels that come into contact with each other are provided with sealing strips, and the two adjacent sets of outer keels are fixed to the doorway wall by L-shaped corner brackets.

[0008] Preferably, the three sets of inner keels are provided with adjustment and storage grooves at the upper and lower ends facing the side wall of the door panel, and adjustment bolts are rotatably installed inside the adjustment and storage grooves. The ends of the adjustment bolts pass through the inner keel and are rotatably connected to the inner wall of the outer keel.

[0009] Preferably, the adjusting bolt is threaded with an adjusting wedge between the outer keel and the inner keel, and T-shaped blocks are provided on both sides of the adjusting wedge. The T-shaped blocks are slidably connected to the inner wall of the outer keel, and the end of the adjusting wedge is in close contact with the side wall of the inner keel located inside the outer keel.

[0010] Preferably, the adjusting block has multiple buffer strips on its sidewalls facing the inner keel and located on both sides of the adjusting bolt.

[0011] Preferably, the depth of the adjusting storage groove is greater than the thickness of the bolt head at the end of the adjusting bolt.

[0012] Preferably, the sealing structure includes a movable sealing strip, a sealing strip storage groove is provided on the bottom surface of the door panel, the movable sealing strip is movably disposed inside the sealing strip storage groove, a protrusion is provided on the top surface of the movable sealing strip inside the sealing strip storage groove, an adjustment groove is provided above the sealing strip storage groove inside the door panel, a through groove is provided between the sealing strip storage groove and the adjustment groove, the protrusion is located inside the through groove, and an adjustment component for squeezing the protrusion down is provided inside the adjustment groove.

[0013] Preferably, the adjusting component includes a horizontal plate, which is slidably disposed inside the adjusting groove. A pressing block is provided on the bottom surface of the end of the horizontal plate through a spring, and the bottom end of the pressing block presses against the surface of the protrusion. The inner top surface of both ends of the sealing strip receiving groove is provided with a notch, and a tension spring is provided inside each notch. The bottom end of the tension spring is connected to the surface of the movable sealing strip.

[0014] Preferably, the adjustment groove has an installation groove on the side away from the through groove. The installation groove is located on the side of the door panel facing the interior. The inner wall of the installation groove facing the interior of the door panel has a through groove. A toggle plate is provided inside the installation groove. The toggle plate is fixedly connected to the horizontal plate. A compression spring is provided on the side wall of the toggle plate facing the pressing block. The compression spring is fixedly connected to the inner wall of the installation groove.

[0015] Preferably, the adjustment assembly further includes a lever and a latch, the end of the lever plate is connected to the lever through the through groove, and a fixing block is provided on the side wall of the door panel facing the interior on the side of the through groove near the pressing block. The lever and the fixing block are connected by a latch.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention consists of an outer keel, an inner keel, an adjusting wedge, and adjusting bolts, allowing for fine-tuning of all three sides of the door frame. During installation, simply rotating the adjusting bolts drives the adjusting wedge to slide along the inner wall of the outer keel, thereby pushing the inner keel to adjust outward or inward relative to the outer keel, adjusting the inner keel to be perpendicular to the ground, thus ensuring the door panel is flush with the wall after installation. Compared to the traditional method of inserting shims, this structure eliminates the need for repeated trial and error, the adjustment process is continuous and controllable, and fine-tuning can still be performed by rotating the bolts after fixing, greatly improving installation efficiency and accuracy. 2. This invention features a retractable sealing strip at the bottom of the door panel. An adjustment mechanism allows the sealing strip to extend and retract. In the event of a fire on the outside of the door panel, the user manually moves a lever towards a fixed block. The latch then secures the sealing strip storage groove and the fixed block, causing the retractable sealing strip to descend and fit tightly against the ground, effectively isolating the door panel from smoke and hot air, thus meeting the smoke-proof sealing requirements of a fire door. When the door needs to be opened, the latch is unlocked, and the lever resets under the action of a compression spring, bringing the retractable sealing strip back into the storage groove. This prevents the sealing strip from rubbing against the ground and causing wear or jamming. This structure effectively prevents external fire smoke from spreading into the room, further optimizing the door panel's performance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the disassembled structure of the outer and inner keels in this invention; Figure 3 In this invention Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 This is a schematic diagram of the cross-sectional structure of the exterior side wall of the door panel in this invention; Figure 5 In this invention Figure 4 Enlarged structural diagram at point B; Figure 6 This is a schematic diagram of the position structure of the actuating plate and the compression spring in this invention; Figure 7 In this invention Figure 6 Enlarged structural diagram at point C.

[0018] In the diagram: 1. Doorway wall; 2. Installation mechanism; 201. Outer keel; 202. Inner keel; 203. Adjusting ramp; 204. Adjusting bolt; 205. Buffer strip; 206. Adjusting storage groove; 207. Movable sealing strip; 208. Sealing strip storage groove; 209. Protrusion; 210. Extrusion block; 211. Horizontal plate; 212. Adjusting groove; 213. Installation groove; 214. Through groove; 215. Toggle plate; 216. Compression spring; 217. Tension spring; 218. Toggle block; 219. Fixing block; 220. Hook and latch; 3. Door panel. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1: Please refer to Figure 1 and Figure 7 This invention provides a technical solution: a fireproof concealed door installation structure, including a doorway wall 1, an installation mechanism 2, and a door panel 3. The installation mechanism 2 is installed inside the doorway wall 1, and the door panel 3 is installed inside the installation mechanism 2 via hinges. The installation mechanism 2 includes outer keel 201 and inner keel 202. The outer keel 201 is fixed to the three inner walls of the doorway wall 1 by expansion bolts. The inner keel 202 is movably arranged on the three sets of outer keels 201 facing the inner wall of the door panel 3. One side wall of the door panel 3 is connected to the inner keel 202 via hinges.

[0021] As a further limitation of the present invention, sealing strips are fixedly provided on the end sidewalls of the three sets of outer keels 201 that are in contact with each other, and the two adjacent sets of outer keels 201 are fixed to the door opening wall 1 by L-shaped corner brackets. By setting the sealing strips, the smoke can be effectively blocked from entering at the corner of the door frame, thereby improving the overall fireproof and smokeproof performance. The L-shaped corner brackets enhance the connection rigidity between adjacent outer keels 201, preventing the door frame from loosening or misaligning due to the vibration of the door opening and closing.

[0022] As a further limitation of the present invention, the three sets of inner keels 202 are respectively provided with adjustment and storage grooves 206 at the upper and lower ends facing the side wall of the door panel 3. Adjustment bolts 204 are rotatably installed inside the adjustment and storage grooves 206. The ends of the adjustment bolts 204 penetrate the inner keel 202 and are rotatably connected to the inner wall of the outer keel 201. By providing adjustment and storage grooves 206, a hidden installation space is provided for the adjustment bolts 204, avoiding the bolt heads from being exposed and affecting the flatness of the decorative surface. At the same time, while the adjustment bolts 204 rotate within the adjustment and storage grooves 206 to adjust the adjustment wedge 203, a space for fine adjustment is provided for the inner keel 202 to move back and forth along the outside of the adjustment bolts 204. Meanwhile, the adjustment bolts 204 penetrate the inner keel 202 and are rotatably connected to the outer keel 201, so that rotating the adjustment bolts 204 can drive the internal adjustment mechanism to generate displacement, thereby achieving precise adjustment of the position of the inner keel 202.

[0023] As a further limitation of the present invention, the adjusting bolt 204 is externally threaded with an adjusting wedge 203 between the outer keel 201 and the inner keel 202. T-shaped blocks are provided on both sides of the adjusting wedge 203. The T-shaped blocks are slidably connected to the inner wall of the outer keel 201. The end of the adjusting wedge 203 is in close contact with the side wall of the inner keel 202 inside the outer keel 201. By setting the adjusting wedge 203 and having one side in contact with the inclined surface of the inner keel 202, when the adjusting bolt 204 is rotated, the adjusting wedge 203 slides along the inner wall of the outer keel 201. Its inclined surface pushes the inner keel 202 relative to the outer keel 201 to produce a displacement perpendicular to the door panel plane, thereby changing the angle between the inner keel 202 and the ground. The door panel 3 can be installed by adjusting the inner keel 202 with the adjusting wedge 203 installed to be perpendicular to the ground. The adjustment process is continuous and controllable and does not require repeated disassembly and assembly of the outer keel 201.

[0024] As a further limitation of the present invention, the sidewalls of the adjusting inclined block 203 facing the inner keel 202 and located on both sides of the adjusting bolt 204 are provided with multiple buffer strips 205. The depth of the adjusting storage groove 206 is greater than the thickness of the bolt head at the end of the adjusting bolt 204. By setting the buffer strips 205, the adjusting inclined block 203 can play a role in buffering, vibration reduction and noise reduction when it contacts the inclined surface of the inner keel 202, avoiding abnormal noise or wear caused by rigid compression between metal parts. At the same time, the depth of the adjusting storage groove 206 is greater than the thickness of the bolt head, so that the end of the adjusting bolt 204 does not exceed the surface of the inner keel 202 after it is fully screwed in. This not only facilitates the subsequent covering of decorative panels or paint to achieve a completely flat door frame surface and meet the aesthetic requirements of the hidden door, but also provides space for fine adjustment of the inner keel 202.

[0025] The specific implementation method of this embodiment is as follows: During installation, the outer keel 201 is first fixed to the top edge and left and right sides of the door opening wall 1 with expansion bolts. L-shaped corner brackets are used to reinforce the corners. At this time, the inner keel 202 is inside the outer keel 201. The installer uses a wrench to rotate the adjusting bolt 204. The adjusting bolt 204 drives the adjusting inclined block 203 to move along the T-shaped slide. The inclined surface of the adjusting inclined block 203 pushes the inner keel 202 to move outward or inward, thereby changing the angle between the door panel 3 and the ground. After repeated adjustment until the door panel 3 is perpendicular to the ground after closing, the hinge can be fixed and the installation of the door panel 3 can be completed. If there is a deviation due to wall settlement or temperature change later, there is no need to disassemble the door frame. You only need to rotate the adjusting bolt 204 again to make fine adjustments.

[0026] Example 2: Please refer to Figure 1 and Figure 7 The present invention provides a technical solution: a fireproof concealed door installation structure, and the present invention makes corresponding improvements to the technical problems mentioned in the background art.

[0027] As a further limitation of the present invention, the installation mechanism 2 also includes a sealing structure for sealing the gap between the bottom of the door panel 3 and the ground. The sealing structure includes a movable sealing strip 207. A sealing strip storage groove 208 is provided on the bottom surface of the door panel 3. The movable sealing strip 207 is movably disposed inside the sealing strip storage groove 208. A protrusion 209 is provided on the top surface of the movable sealing strip 207 inside the sealing strip storage groove 208. An adjustment groove 212 is provided above the sealing strip storage groove 208 inside the door panel 3. The sealing strip storage groove 208 and the adjustment groove are connected. A through groove is provided between 212, and the protrusion 209 is located inside the through groove. The adjustment groove 212 is provided with an adjustment component for pressing the protrusion 209 down. By setting the movable sealing strip 207 and the sealing strip storage groove 208, the movable sealing strip 207 can be extended or retracted as needed. When closed, it extends to fit with the ground to achieve a seal, and when opened, it retracts to avoid wear. The cooperation between the protrusion 209 and the adjustment component realizes the control of the extension amount of the movable sealing strip 207. The through groove provides guidance and limit for the up and down movement of the protrusion 209.

[0028] The adjustment assembly includes a horizontal plate 211, which is slidably disposed inside the adjustment groove 212. A pressing block 210 is provided on the bottom surface of the end of the horizontal plate 211 via a spring, and the bottom end of the pressing block 210 presses against the surface of the protrusion 209. The inner top surfaces of both ends of the sealing strip storage groove 208 are provided with recesses, and tension springs 217 are provided inside the recesses. The bottom ends of the tension springs 217 are respectively connected to the surface of the movable sealing strip 207. By setting the horizontal plate 211 and the pressing block 210, when the horizontal plate 211 moves horizontally, the pressing block 210 slides along the surface of the protrusion 209 under the action of the spring and gradually presses down on the protrusion 209, thereby driving the movable sealing strip 207 to extend downward against the tension of the tension spring 217. When the pressing block 210 is withdrawn, the tension spring 217 pulls the movable sealing strip 207 back into the sealing strip storage groove 208, realizing automatic reset without manual operation.

[0029] An installation groove 213 is provided on the side of the adjustment groove 212 away from the through groove. The installation groove 213 is located on the side of the door panel 3 facing the interior. A through groove 214 is provided on the inner wall of the installation groove 213 facing the interior of the door panel 3. A toggle plate 215 is provided inside the installation groove 213. The toggle plate 215 is fixedly connected to the horizontal plate 211. A compression spring 216 is provided on the side wall of the toggle plate 215 facing the pressing block 210. The compression spring 216 is fixedly connected to the inner wall of the installation groove 213. The mounting groove 213 and the toggle plate 215 provide a medium for the user to operate the extension and retraction of the movable sealing strip 207 on the side of the door panel 3. The toggle plate 215 is fixedly connected to the horizontal plate 211, so that the horizontal plate 211 can be moved by toggling the toggle plate 215 left and right. The compression spring 216 is used to provide a restoring force after the toggle plate 215 is pushed, so that the toggle plate 215 can automatically return to its original position after unlocking, thereby allowing the movable sealing strip 207 to retract into the sealing strip storage groove 208.

[0030] As a further limitation of the present invention, the adjustment component also includes a toggle block 218 and a latch 220. The end of the toggle plate 215 passes through the through groove 214 and is connected to the toggle block 218. A fixing block 219 is provided on the side wall of the door panel 3 facing the interior, on the side of the through groove 214 near the pressing block 210. The toggle block 218 and the fixing block 219 are connected by the latch 220. The toggle block 218 facilitates the user's finger operation. The cooperation between the latch 220 and the fixing block 219 can lock the position of the movable sealing strip 207 after it is lowered into place, preventing the movable sealing strip 207 from accidentally retracting due to vibration, wind pressure or accidental contact, and ensuring the sealing reliability during long-term use. When the door needs to be opened, the latch 220 is released, and the toggle plate 215 automatically resets under the action of the compression spring 216. The movable sealing strip 207 then retracts into the interior of the sealing strip storage groove 208. The specific implementation of this embodiment is as follows: In the normal open state, the movable sealing strip 207 retracts into the sealing strip storage groove 208 under the tension of the tension spring 217 and does not contact the ground. When a fire occurs outside or when it is necessary to close the door and achieve a seal, the user moves the lever 218 towards the squeezing block 210. The lever 218 drives the lever plate 215 and the horizontal plate 211 to move, the compression spring 216 is compressed, and the squeezing block 210 below the end of the horizontal plate 211 moves accordingly and gradually presses against the protrusion 209. The protrusion 209 drives the movable sealing strip 207 to move. The dynamic sealing strip 207 extends downwards against the tension of the tension spring 217 until the bottom surface of the dynamic sealing strip 207 is tightly attached to the ground. At this time, the buckle 220 is fastened to the fixing block 219 to lock the sealing state. When the door needs to be opened again, the buckle 220 is released, and the toggle block 218 and the toggle plate 215 automatically retract under the restoring force of the compression spring 216. The squeezing block 210 disengages from the protrusion 209, and the dynamic sealing strip 207 automatically retracts into the sealing strip storage groove 208 under the action of the tension spring 217, and the door panel 3 can be opened freely.

[0031] Working principle: For door frame adjustment, an adjusting block 203 is installed between the outer keel 201 and the inner keel 202. The adjusting bolt 204 drives the adjusting block 203 to slide along a T-shaped groove. The inclined surface of the adjusting block 203 cooperates with the inner keel 202, converting the rotational motion of the adjusting bolt 204 into a linear displacement of the inner keel 202 perpendicular to the ground plane. Installers can precisely control the extension of the inner keel 202 relative to the outer keel 201 by rotating the adjusting bolt 204. The output ensures that the door panel 3 is perpendicular to the ground, guaranteeing the verticality of the door panel 3 during installation. After the inner keel 202 is adjusted, the installer can fill the space between the outer keel 201 and the inner keel 202 with structural sealant to ensure the sealing between the outer keel 201 and the inner keel 202. The buffer strip 205 effectively reduces the rigid impact and noise during the adjustment process, while the depth design of the adjustment storage groove 206 ensures that the head of the adjustment bolt 204 is completely hidden and provides space for fine adjustment of the inner keel 202. Regarding the bottom sealing of door panel 3, a movable sealing strip 207 is used in conjunction with an adjustment component. When sealing is required, the user moves the lever 218, which in turn moves the lever plate 215, the horizontal plate 211, and the pressing block 210. The pressing block 210 presses down on the protrusion 209, causing the movable sealing strip 207 to overcome the tension of the tension spring 217, extend from the sealing strip storage groove 208, and fit tightly against the ground. It is then locked by the latch 220 to maintain the sealing state. When the door needs to be opened, the latch 220 is released, the compression spring 216 pushes the lever plate 215 and the horizontal plate 211 to reset, the pressing block 210 disengages from the protrusion 209, and the tension spring 217 pulls the movable sealing strip 207 back into the sealing strip storage groove 208, preventing the movable sealing strip 207 from being damaged by friction with the ground when the door is opened. This structure not only meets the smoke-proof sealing requirements of the fire door in the closed state, but also solves the problem of easy wear and tear of traditional fixed sealing strips, which affects the smoothness of opening the door.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fireproof concealed door installation structure, comprising a door opening wall (1), an installation mechanism (2), and a door panel (3), characterized in that: The installation mechanism (2) is installed inside the doorway wall (1), and the door panel (3) is installed inside the installation mechanism (2) by means of a hinge; The installation mechanism (2) includes an outer keel (201) and an inner keel (202). The outer keel (201) is fixed to the three sides of the wall of the door opening (1) by expansion bolts. The three sets of outer keels (201) are movably provided with inner keels (202) facing the inner wall of the door panel (3). One side wall of the door panel (3) is connected to the inner keel (202) by a hinge. The installation mechanism (2) also includes a sealing structure for sealing the gap between the bottom of the door panel (3) and the ground.

2. The fireproof concealed door installation structure according to claim 1, characterized in that: The end sidewalls of the three sets of outer keels (201) that come into contact with each other are all provided with sealing strips, and the two adjacent sets of outer keels (201) are fixed to the door opening wall (1) by L-shaped corner brackets.

3. The fireproof concealed door installation structure according to claim 2, characterized in that: The three sets of inner keels (202) are provided with adjustment and storage grooves (206) at the upper and lower ends of the side wall facing the door panel (3). An adjustment bolt (204) is rotatably provided inside the adjustment and storage groove (206). The end of the adjustment bolt (204) passes through the inner keel (202) and is rotatably connected to the inner wall of the outer keel (201).

4. The fireproof concealed door installation structure according to claim 3, characterized in that: The adjusting bolt (204) is threaded with an adjusting wedge (203) between the outer keel (201) and the inner keel (202). T-shaped blocks are provided on both sides of the adjusting wedge (203). The T-shaped blocks are slidably connected to the inner wall of the outer keel (201). The end of the adjusting wedge (203) is in close contact with the inner keel (202) on the side wall inside the outer keel (201).

5. The fireproof concealed door installation structure according to claim 4, characterized in that: The adjusting inclined block (203) is facing the inner keel (202) and has multiple buffer strips (205) on the side wall on both sides of the adjusting bolt (204).

6. The fireproof concealed door installation structure according to claim 5, characterized in that: The depth of the adjustment receiving groove (206) is greater than the thickness of the bolt head at the end of the adjustment bolt (204).

7. The fireproof concealed door installation structure according to claim 1, characterized in that: The sealing structure includes a movable sealing strip (207). A sealing strip storage groove (208) is provided on the bottom surface of the door panel (3). The movable sealing strip (207) is movably disposed inside the sealing strip storage groove (208). A protrusion (209) is provided on the top surface of the movable sealing strip (207) inside the sealing strip storage groove (208). An adjustment groove (212) is provided above the sealing strip storage groove (208) inside the door panel (3). A through groove is provided between the sealing strip storage groove (208) and the adjustment groove (212). The protrusion (209) is located inside the through groove. An adjustment component for squeezing the protrusion (209) to descend is provided inside the adjustment groove (212).

8. The fireproof concealed door installation structure according to claim 7, characterized in that: The adjustment assembly includes a horizontal plate (211), which is slidably disposed inside the adjustment groove (212). A pressing block (210) is provided on the bottom surface of the end of the horizontal plate (211) by a spring, and the bottom end of the pressing block (210) is pressed against the surface of the protrusion (209). The inner top surface of both ends of the sealing strip receiving groove (208) is provided with a notch, and a tension spring (217) is provided inside the notch. The bottom end of the tension spring (217) is connected to the surface of the movable sealing strip (207).

9. The fireproof concealed door installation structure according to claim 8, characterized in that: The adjustment groove (212) has an installation groove (213) on the side away from the through groove. The installation groove (213) is located on the side of the door panel (3) facing the interior. The inner wall of the installation groove (213) facing the interior of the door panel (3) has a through groove (214). The installation groove (213) has a toggle plate (215) inside. The toggle plate (215) is fixedly connected to the horizontal plate (211). The side wall of the toggle plate (215) facing the extrusion block (210) has a compression spring (216) fixedly connected to the inner wall of the installation groove (213).

10. The fireproof concealed door installation structure according to claim 9, characterized in that: The adjustment assembly also includes a lever (218) and a latch (220). The end of the lever plate (215) is connected to the lever (218) through the through slot (214). The side wall of the door panel (3) facing the interior is provided with a fixing block (219) on the side wall of the through slot (214) near the pressing block (210). The lever (218) and the fixing block (219) are connected by the latch (220).

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