Multi-locking-point linkage type 5-level security door and mounting structure thereof

Abstract

The application discloses a multi-locking-point linkage type five-grade security door and a mounting structure thereof, and relates to the technical field of security doors. The security door comprises a frame main body, a door main body is rotationally arranged in the frame main body, a gear disc locking assembly is arranged on the frame main body, a linkage assembly and a clamping strip seat are arranged on the door main body at positions corresponding to the gear disc locking assembly, and the linkage assembly is used for adjusting the clamping strip seat and the gear disc locking assembly to be clamped and fixed. The gear disc locking assembly comprises a first positioning plate arranged in the frame main body, a lock plate is fixedly arranged on the first positioning plate, and a lock groove for clamping the clamping strip seat is formed in the lock plate. By arranging a group of primary lock bodies and a plurality of groups of secondary lock bodies to cooperatively adjust the locking or unlocking of the door main body, the safety protection level of the door main body is higher than that of the prior art which only adopts a group of primary lock bodies or a group of secondary lock bodies to adjust the locking or unlocking of the door main body.

Description

Technical Field

[0001] This invention relates to the field of security door technology, and in particular to a multi-locking point linkage type 5-level security door and its installation structure. Background Technology

[0002] As the first line of defense for home and office security, the safety and ease of installation of security doors have always been a major concern. With increasing demands for higher security levels, multi-point locking security doors have emerged, especially those with a security level of 5. These doors utilize a multi-point locking mechanism to simultaneously lock the door and frame at multiple points, significantly improving their resistance to prying and forced entry, making them a preferred product in the high-end security market.

[0003] Currently, the installation structure of existing security doors is typically quite traditional and simple. Specifically, installers often use expansion bolts or chemical anchors to directly pass the main frame of the security door through pre-drilled mounting holes and ultimately fix it to the pre-drilled doorway in the building's wall. While this rigid connection method can ensure initial stability after installation to some extent, it has significant shortcomings in practical applications.

[0004] First, when a security door needs to be disassembled after long-term use due to malfunction, upgrades, or interior renovations, after-sales personnel must remove each of the numerous bolts securing the door frame to the wall. Since the door frame and wall are usually in rigid contact, and to ensure the door's anti-pry performance, the number of bolts is large and densely distributed, making the disassembly process extremely tedious, time-consuming, and labor-intensive. Second, removing the bolts leaves multiple exposed bolt holes in the wall. These holes not only damage the integrity and aesthetics of the wall but may also cause irreversible damage to the wall structure. Even more problematic is that when the same door needs to be reinstalled or a new door is replaced, the original bolt holes are often unusable due to fixed positions, dimensional deviations, or damage to the internal wall structure. Construction workers usually need to re-drill holes in the wall, which not only further damages the wall but also increases the difficulty of installation. Furthermore, repeated drilling reduces the connection strength between the fasteners and the wall, creating potential safety hazards for future use. Summary of the Invention

[0005] This invention provides a multi-locking, linkage-type, five-level security door and its installation structure, which can solve the following problems existing in the prior art: Existing security doors typically have the door frame directly fixed to the wall. When disassembly and replacement are needed, the process is cumbersome and can easily cause further damage to the wall.

[0006] A multi-locking linkage 5-level anti-theft door includes a frame body, in which a door body is rotatably arranged. A toothed disc locking assembly is provided on the frame body. An interlocking assembly and a locking strip seat are provided on the door body at the position corresponding to the toothed disc locking assembly. The interlocking assembly is used to adjust the locking strip seat and the toothed disc locking assembly to be locked and fixed. The gear plate locking assembly includes a first positioning plate disposed within the frame body, a locking plate fixedly disposed on the first positioning plate, and a locking groove for engaging with the card slot seat.

[0007] Preferably, the interlocking assembly includes a second positioning plate fixed to the door body, a retaining strip seat rotatably mounted on the second positioning plate via a first pin, a T-shaped plate slidably mounted on the second positioning plate, a guide groove being provided on the T-shaped plate, and a second pin fixedly mounted on the retaining strip seat, the second pin being slidably embedded in the guide groove.

[0008] Preferably, the interlocking assembly further includes a set of primary lock bodies and multiple sets of secondary lock bodies, the primary lock bodies and multiple sets of secondary lock bodies working in sync to drive the T-shaped plate to slide on the door body.

[0009] Preferably, a main connecting rod is fixedly arranged on the T-shaped plate, and the primary lock body and each secondary lock body are respectively connected to the main connecting rod through a support connecting rod to drive the main connecting rod to slide horizontally.

[0010] Preferably, the gear locking assembly further includes a gear lock body fixedly mounted on the door body, a first positioning plate slidably mounted on the door body, a sliding groove provided on the first positioning plate, and the driving end of the gear lock body passing through the sliding groove and fixedly connected to the gear. The first positioning plate is also fixedly equipped with a rack that meshes with the gear.

[0011] An installation structure for a multi-locking linkage 5-level security door includes a first U-shaped frame symmetrically fixed on both sides of the main frame body, and a second U-shaped frame embedded in the wall. The second U-shaped frame is provided with a clamping module, which is used to clamp and fix the first U-shaped frame.

[0012] Preferably, the clamping module includes a limiting plate that is slidably embedded in the second U-shaped frame. One side of the limiting plate is fixedly connected to the second U-shaped frame by a number of sets of telescopic springs, and the other side of the limiting plate is symmetrically arranged with two sets of clamping plates. The two side plates are connected to an adjustment unit that drives them to rotate in opposite directions or in opposite directions.

[0013] Preferably, the adjusting part includes an adjusting screw that is rotatably mounted on the limiting plate, a nut that is helically sleeved on the adjusting screw, adjusting rods that are rotatably mounted on both sides of the nut, and the other end of the adjusting rods that are rotatably connected to the clamping plate.

[0014] Preferably, an adjustment handle is fixedly provided at the end of the adjustment screw away from the limiting plate, and a hexagonal screw groove is provided on the end face of the adjustment handle; The frame body has circular grooves on both sides that are coaxial with the adjusting screw. An adjusting rod is slidably inserted into the groove. The end of the adjusting rod that is close to the adjusting screw has a first adjusting end corresponding to the hexagonal screw groove, and the end of the adjusting rod that is away from the adjusting screw has a second adjusting nut.

[0015] Preferably, the side plates of the first U-shaped frame and the second U-shaped frame are respectively provided with reinforcing plates that are fixed vertically at their ends.

[0016] This invention provides a multi-locking, linkage-type, five-level security door and its installation structure, which has the following beneficial effects: 1) When the main body of the regulating door is in a locked or unlocked state, the present invention can drive the T-shaped plate to slide horizontally on the second positioning plate through the synchronous and coordinated cooperation of the primary lock body and each secondary lock body. During the horizontal sliding process, the T-shaped plate can drive the card strip seat to deflect around the first pin shaft based on the limiting effect of the guide groove on the second pin shaft, thereby realizing the state of the end of the regulating card strip seat engaging or disengaging from the lock groove. Based on this, the present invention achieves the locking or unlocking of the main body of the regulating door by setting a set of primary lock bodies and multiple sets of secondary lock bodies working together. Compared with the prior art, which only uses a set of primary lock bodies or a set of secondary lock bodies to lock or unlock the main body of the regulating door, the present invention has a higher level of security protection for the main body of the door. 2) After the card holder and the lock groove of the present invention are separated, the personnel cannot open the door body due to the blocking effect of the first positioning plate on the card holder. Therefore, after the card holder and the lock groove are separated, the gear is driven to rotate by the toothed lock body. The gear drives the first positioning plate to move a distance away from the second positioning plate by meshing with the rack, so that the first positioning plate and the card holder are completely separated. The operator can then pull the door body outward. The toothed lock body can be independently controlled by the corresponding personnel. Therefore, the toothed locking assembly of this embodiment can further improve the security of the door body. 3) The second U-shaped frame of the present invention can be pre-fixed in the mounting groove opened in the wall by multiple sets of bolts. When installing the frame body and the door body, the frame body and the door body are moved between the two second U-shaped frames. When the positions of the first U-shaped frame and the second U-shaped frame are aligned, the first U-shaped frame and the second U-shaped frame can be clamped and fixed by the clamping module, thereby achieving the effect of installing the frame body and the door body. Therefore, the present invention does not require fixing the frame body to the wall to achieve installation. When it is necessary to disassemble the frame body and the door body, the clamping module can be adjusted to lose the clamping effect on the first U-shaped frame. Disassembly and assembly are very convenient. Since it is not necessary to disassemble the second U-shaped frame, the phenomenon of secondary damage to the wall can be avoided, and the safety is higher. Attached Figure Description

[0017] Figure 1 A three-dimensional structural diagram of a multi-locking, linkage-type, 5-level security door provided by the present invention. Figure 1 ; Figure 2 This invention provides a schematic diagram of the main structure of a multi-locking, linkage-type, 5-level security door; Figure 3 A three-dimensional structural diagram of a multi-locking, linkage-type, 5-level security door provided by the present invention. Figure 2 ; Figure 4 A schematic diagram of the internal structure of a multi-locking linkage 5-level security door provided by the present invention; Figure 5 A cross-sectional structural diagram of a multi-locking linkage 5-level anti-theft door provided by the present invention; Figure 6 A top view schematic diagram of the installation structure of a multi-locking linkage 5-level anti-theft door provided by the present invention; Figure 7 A schematic diagram of the internal structure of an installation structure for a multi-locking linkage 5-level anti-theft door provided by the present invention; Figure 8 This is a schematic diagram of the card plate in the installation structure of a multi-locking linkage 5-level anti-theft door provided by the present invention.

[0018] Explanation of reference numerals in the attached figures: 1. Frame body; 2. First U-shaped frame; 3. Adjusting rod; 4. Interlocking assembly; 5. Second U-shaped frame; 6. Gear disc locking assembly; 101. Door body; 102. Primary lock body; 103. Secondary lock body; 104. Gear disc lock body; 105. Circular groove; 301. Second adjusting nut; 302. First adjusting end; 401. Second positioning plate; 402. First positioning plate; 403. Gear; 404. 405. Rack; 406. Main connecting rod; 407. T-shaped plate; 408. Locking plate; 409. Slide groove; 410. First pin; 411. Guide groove; 412. Second pin; 501. Limiting plate; 502. Hexagonal screw groove; 503. Locking plate; 504. Adjusting bracket; 505. Nut; 506. Adjusting screw; 507. Telescopic spring; 508. Adjusting handle; 509. Reinforcing plate. Detailed Implementation

[0019] The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0020] Example 1 like Figures 1 to 5As shown in the figure, the multi-locking linkage 5-level anti-theft door provided by the embodiment of the present invention includes a frame body 1, a door body 101 rotatably arranged in the frame body 1, a toothed disc locking assembly 6 on the frame body 1, and an interlocking assembly 4 and a locking strip seat 407 arranged on the door body 101 at the position corresponding to the toothed disc locking assembly 6. The interlocking assembly 4 is used to adjust the locking strip seat 407 to be locked and fixed with the toothed disc locking assembly 6. Specifically, in this embodiment, when the door body 101 is in a locked state, it can be locked and fixed to the toothed disc locking assembly 6 by adjusting the locking strip seat 407 of the interlock assembly 4. Correspondingly, when it is necessary to release the locked state of the door body 101, the locking strip seat 407 of the interlock assembly 4 can be separated from the toothed disc locking assembly 6, thereby releasing the locked state of the door body 101 and achieving the effect of opening the door body 101.

[0021] As one embodiment of this embodiment, the gear plate locking assembly 6 includes a first positioning plate 402 disposed within the frame body 1. A locking plate 408 is fixedly disposed on the first positioning plate 402, and a locking groove is provided on the locking plate 408 for engaging with the locking strip seat 407. Specifically, when the locking assembly 4 adjusts the locking strip seat 407 to be locked and fixed with the gear plate locking assembly 6, the locking assembly 4 can be adjusted to engage with the locking groove on the locking plate 408. Correspondingly, when unlocking, the locking strip seat 407 can be adjusted to be separated from the locking groove.

[0022] In one embodiment of this invention, the interlocking assembly 4 includes a second positioning plate 401 fixed to the door body 101, a retaining strip seat 407 rotatably mounted on the second positioning plate 401 via a first pin 410, a T-shaped plate 406 slidably mounted on the second positioning plate 401, a guide groove 411 formed on the T-shaped plate 406, and a second pin 412 fixedly mounted on the retaining strip seat 407, the second pin 412 slidably embedded in the guide groove 411; the interlocking assembly 4 also includes a set of primary lock bodies 102 and multiple sets of secondary lock bodies 103, the primary lock bodies 102 and the multiple sets of secondary lock bodies 103 synchronously cooperating to drive the T-shaped plate 406 to slide on the door body 101; it can be noted that, in this embodiment, when adjusting the door body 101 to a locked or unlocked state, it can be achieved through... The primary lock body 102 and each secondary lock body 103 work together synchronously to drive the T-shaped plate 406 to slide horizontally on the second positioning plate 401. During the horizontal sliding process, the T-shaped plate 406 can drive the card strip seat 407 to deflect around the first pin 410 based on the limiting effect of the guide groove 411 on the second pin 412, thereby adjusting the state of the end of the card strip seat 407 engaging or disengaging from the lock groove. Based on this, this embodiment achieves the locking or unlocking of the door body 101 by setting a set of primary lock bodies 102 and multiple sets of secondary lock bodies 103 working together. Compared with the prior art, which only uses a set of primary lock bodies 102 or a set of secondary lock bodies 103 to adjust the locking or unlocking of the door body 101, the door body 101 of this embodiment has a higher level of security protection.

[0023] Furthermore, this embodiment does not limit the number of secondary lock bodies 103, as long as it meets the actual application requirements; for example, the number of secondary lock bodies 103 in this embodiment is four sets.

[0024] For details, please refer to Figure 1 as well as Figures 5-7 A main connecting rod 405 is fixedly arranged on the T-shaped plate 406. The primary lock body 102 and each secondary lock body 103 are connected to the main connecting rod 405 through support rods to drive the main connecting rod 405 to slide horizontally. It can be noted that in this embodiment, when adjusting the T-shaped plate 406 to slide horizontally, the primary lock body 102 and each secondary lock body 103 can be started simultaneously. The primary lock body 102 and each secondary lock body 103 can drive the main connecting rod 405 to slide synchronously through the support rods, and the T-shaped plate 406 can be driven to slide through the main connecting rod 405.

[0025] It should also be noted that the unlocking procedures of the primary lock body 102 and each secondary lock body 103 in this embodiment can be associated with different personnel, so that no single person can unlock the door body 101. The door body 101 can only be unlocked when multiple people are present at the same time and complete the unlocking steps synchronously within a preset time, which further ensures the security of the door body 101.

[0026] In this embodiment, the unlocking procedure for each person includes, but is not limited to, password unlocking, fingerprint unlocking, or facial recognition unlocking; this implementation does not limit this method.

[0027] In one embodiment of this invention, the gear lock assembly 6 further includes a gear lock body 104 fixedly mounted on the door body 101. A first positioning plate 402 is slidably mounted on the door body 101. A sliding groove 409 is provided on the first positioning plate 402. The driving end of the gear lock body 104 passes through the sliding groove 409 and is fixedly connected to the gear 403. A rack 404 that meshes with the gear 403 is also fixedly mounted on the first positioning plate 402. It can be noted that after the locking strip seat 407 separates from the lock groove in this embodiment, based on the blocking effect of the first positioning plate 402 on the locking strip seat 407, the person... The operator is still unable to open the door body 101. Therefore, after the adjusting strip seat 407 separates from the lock groove, the gear 403 needs to be driven to rotate by the gear lock body 104. The gear 403 drives the first positioning plate 402 to move a distance away from the second positioning plate 401 by meshing with the rack 404, so that the first positioning plate 402 is completely separated from the strip seat 407. The operator can then pull the door body 101 outward. The gear lock body 104 can be independently controlled by the corresponding personnel. Therefore, the gear lock assembly 6 of this embodiment can further improve the security of the door body 101.

[0028] Example 2 Based on Example 1, please refer to Figures 1-3 as well as Figures 5-8 An installation structure for a multi-locking, linkage-type, 5-level security door includes a first U-shaped frame 2 symmetrically fixed to both sides of a frame body 1, and a second U-shaped frame 5 embedded in the wall. The second U-shaped frame 5 has a locking module inside, which is used to engage and fix with the first U-shaped frame 2. It can be noted that in this embodiment, the second U-shaped frame 5 can be pre-fixed to an installation groove in the wall using multiple sets of bolts. When installing the frame body 1 and the door body 101, the frame body 1 and the door body 101 are moved between the two second U-shaped frames 5. When the first U-shaped frame 2 and the second U-shaped frame 5 are engaged... After the positions of the two U-shaped frames 5 are aligned, the first U-shaped frame 2 and the second U-shaped frame 5 can be clamped and fixed by the clamping module, thereby achieving the effect of installing the frame body 1 and the door body 101. Therefore, in this embodiment, it is not necessary to fix the frame body 1 to the wall to achieve installation. When it is necessary to disassemble the frame body 1 and the door body 101, the clamping module can be adjusted to lose the clamping effect on the first U-shaped frame 2. Disassembly and assembly are very convenient. Since it is not necessary to disassemble the second U-shaped frame 5, the phenomenon of secondary damage to the wall can be avoided, and the safety is higher.

[0029] In this embodiment, the clamping module includes a limiting plate 501 slidably embedded in the second U-shaped frame 5. One side of the limiting plate 501 is fixedly connected to the second U-shaped frame 5 by several sets of telescopic springs 507. The other side of the limiting plate 501 is symmetrically arranged with two sets of clamping plates 503. The clamping plates 503 on both sides are connected to an adjusting part that drives them to rotate in opposite directions. It can be noted that in this embodiment, before the frame body 1 and the door body 101 are embedded into the two second U-shaped frames 5, the clamping plates 503 on both sides can be driven to rotate in opposite directions by the adjusting part (see reference). Figure 8 This causes the two side plates 503 to be tilted. When installing the frame body 1 and the door body 101, the frame body 1 can be directly pushed to move horizontally between the two second U-shaped frames 5. During the movement, the first U-shaped frame 2 can push the limiting plate 501 to move inward towards the second U-shaped frame 5 by abutting against the inclined surface of the tilted plate 503, until the frame body 1 and the door body 101 are completely embedded between the two second U-shaped frames 5. During this process, the limiting plate 501 can compress the telescopic spring 507 and generate elastic force. When the frame body 1 and the door body 101 are completely embedded, the telescopic spring 507 can push the limiting plate 501 to reset. Finally, the adjusting part drives the two side plates 503 to reset and rotate to a horizontal state. The end of the plate 503 can abut against the first U-shaped frame 2, thereby achieving the effect of limiting the first U-shaped frame 2. Correspondingly, when it is necessary to disassemble the frame body 1 and the door body 101, the adjusting part can be used to drive the two side plates 503 to rotate in opposite directions. The operation is very convenient.

[0030] Specifically, the adjustment unit includes an adjustment screw 506 rotatably mounted on the limiting plate 501, a nut 505 screwed onto the adjustment screw 506, and adjustment frames 504 rotatably mounted on both sides of the nut 505. The other end of the adjustment frame 504 is rotatably connected to the clamping plate 503. It can be noted that in this embodiment, when adjusting the rotation of the clamping plates 503 on both sides, the adjustment screw 506 can be driven to rotate first. During the movement of the nut 505 on the adjustment screw 506, the clamping plates 503 can be synchronously pushed to rotate through the adjustment frame 504 until the clamping plates 503 on both sides are rotated to be parallel to each other.

[0031] To facilitate the rotation of the adjusting screw 506, in this embodiment, an adjusting handle 508 is fixedly provided at the end of the adjusting screw 506 away from the limiting plate 501. A hexagonal screw groove 502 is formed on the end face of the adjusting handle 508. Circular grooves 105, coaxial with the adjusting screw 506, are respectively formed on both sides of the frame body 1. An adjusting rod 3 is slidably inserted into the circular groove 105. A first adjusting end 302, corresponding to the hexagonal screw groove 502, is fixedly provided at the end of the adjusting rod 3 near the adjusting screw 506. The adjusting rod 3 is further away from the adjusting screw 506. A second adjusting nut 301 is fixedly provided at one end of the adjusting screw 506. It can be explained that when the adjusting screw 506 needs to be driven to rotate in this embodiment, the operator can slide the position of the adjusting rod 3 in the circular groove 105 so that the first adjusting end 302 at the end of the adjusting rod 3 engages with the hexagonal screw groove 502. Then, the operator can drive the adjusting rod 3 to rotate by using a wrench or other tools in conjunction with the second adjusting nut 301. During the rotation of the adjusting rod 3, the effect of synchronously driving the adjusting screw 506 to rotate can be achieved.

[0032] As a further embodiment, in order to improve the structural strength of the first U-shaped frame 2 and the second U-shaped frame 5, the end plates of the side panels of the first U-shaped frame 2 and the second U-shaped frame 5 are respectively provided with reinforcing plates 509 in a vertical fixed manner; specifically, by providing reinforcing plates 509 at the end plates of the side panels of the first U-shaped frame 2 and the second U-shaped frame 5, when the frame body 1 and the door body 101 are completely embedded between the two second U-shaped frames 5, the reinforcing plates 509 at the end plates of the side panels of the first U-shaped frame 2 and the second U-shaped frame 5 are in an abutting state, so as to ensure the stability of the frame body 1 and the door body 101 and avoid shaking; At the same time, since the reinforcing plate 509 has a certain length, the two side plates of the first U-shaped frame 2 can avoid the phenomenon of the two side plates of the first U-shaped frame 2 getting stuck between the two sets of reinforcing plates 509 during the contact with the clamping plate 503, thus ensuring that the first U-shaped frame 2 is stably embedded.

[0033] An installation method for a multi-locking, linkage-type, five-level security door includes the following steps: Please refer to Figures 1-5 S1. The second U-shaped frame 5 is pre-fixed into the installation groove opened in the wall using multiple sets of bolts; S2. Move the frame body 1 and the door body 101 to the space between the second U-shaped frames 5 on both sides; S3. When the positions of the first U-shaped frame 2 and the second U-shaped frame 5 are aligned, the first U-shaped frame 2 and the second U-shaped frame 5 are clamped and fixed by the clamping module.

[0034] The above-disclosed embodiments are merely a few specific examples of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A multi-locking, linkage-type, level 5 security door, comprising a frame body (1), characterized in that, The frame body (1) is rotatably arranged with a door body (101). The frame body (1) is provided with a toothed disc locking assembly (6). The door body (101) is provided with an interlock assembly (4) and a locking strip seat (407) at the position corresponding to the toothed disc locking assembly (6). The interlock assembly (4) is used to adjust the locking strip seat (407) and the toothed disc locking assembly (6) to lock and fix them. The gear plate locking assembly (6) includes a first positioning plate (402) arranged in the frame body (1), a locking plate (408) is fixedly arranged on the first positioning plate (402), and a locking groove for engaging with the card slot seat (407) is provided on the locking plate (408).

2. The multi-locking, linkage-type, level 5 security door as described in claim 1, characterized in that, The interlocking assembly (4) includes a second positioning plate (401) fixed on the door body (101), a card holder (407) rotatably mounted on the second positioning plate (401) via a first pin (410), a T-shaped plate (406) slidably mounted on the second positioning plate (401), a guide groove (411) is provided on the T-shaped plate (406), and a second pin (412) is also fixedly mounted on the card holder (407), the second pin (412) being slidably embedded in the guide groove (411).

3. A multi-locking, linkage-type, level 5 security door as described in claim 2, characterized in that, The interlocking assembly (4) also includes a set of primary lock bodies (102) and multiple sets of secondary lock bodies (103). The primary lock bodies (102) and multiple sets of secondary lock bodies (103) work together to drive the T-shaped plate (406) to slide on the door body (101).

4. A multi-locking, linkage-type, level 5 security door as described in claim 3, characterized in that, The T-shaped plate (406) is fixedly provided with a main connecting rod (405). The first-level lock body (102) and each of the second-level lock bodies (103) are connected to the main connecting rod (405) through a support connecting rod to drive the main connecting rod (405) to slide horizontally.

5. A multi-locking, linkage-type, level 5 security door as described in claim 2, characterized in that, The gear locking assembly (6) further includes a gear lock body (104) fixedly arranged on the door body (101), a first positioning plate (402) slidably arranged on the door body (101), a slide groove (409) is opened on the first positioning plate (402), and the driving end of the gear lock body (104) passes through the slide groove (409) and is fixedly connected to the gear (403); Among them, the first positioning plate (402) is also fixedly provided with a rack (404) that meshes with the gear (403).

6. An installation structure for a multi-locking, linkage-type, 5-level security door as described in any one of claims 1-5, characterized in that, It includes a first U-shaped frame (2) that is symmetrically fixed on both sides of the frame body (1), and a second U-shaped frame (5) embedded in the wall. The second U-shaped frame (5) is provided with a clamping module, which is used to clamp and fix the first U-shaped frame (2).

7. The installation structure of a multi-locking linkage 5-level security door as described in claim 6, characterized in that, The clamping module includes a limiting plate (501) that is slidably embedded in the second U-shaped frame (5). One side of the limiting plate (501) is fixedly connected to the second U-shaped frame (5) by several sets of telescopic springs (507), and the other side of the limiting plate (501) is symmetrically arranged with two sets of clamping plates (503). The two side plates (503) are connected to the adjustment part that drives them to rotate in opposite directions.

8. The installation structure of a multi-locking linkage 5-level anti-theft door as described in claim 7, characterized in that, The adjustment unit includes an adjustment screw (506) rotatably mounted on a limiting plate (501), a nut (505) spirally mounted on the adjustment screw (506), and adjustment frames (504) rotatably mounted on both sides of the nut (505). The other end of the adjustment frame (504) is rotatably connected to a clamping plate (503).

9. The installation structure of a multi-locking linkage 5-level security door as described in claim 8, characterized in that, An adjustment handle (508) is fixedly provided at one end of the adjusting screw (506) away from the limiting plate (501), and a hexagonal screw groove (502) is provided on the end face of the adjustment handle (508). Among them, the frame body (1) has circular grooves (105) on both sides, which are coaxial with the adjusting screw (506). An adjusting rod (3) is slidably inserted in the circular groove (105). The end of the adjusting rod (3) that is close to the adjusting screw (506) is fixedly provided with a first adjusting end (302) corresponding to the hexagonal screw groove (502). The end of the adjusting rod (3) that is away from the adjusting screw (506) is fixedly provided with a second adjusting nut (301).

10. The installation structure of a multi-locking linkage 5-level security door as described in claim 6, characterized in that, The first U-shaped frame (2) and the second U-shaped frame (5) have reinforcing plates (509) fixedly arranged vertically at the ends of their side plates.

Images