A door lock device for emergency exit of public buildings

Abstract

The application relates to a door lock device for an emergency passage of a public building, relates to the technical field of door locks, and aims to improve the problem that a door lock handle cannot be conveniently replaced. The door lock device for the emergency passage of the public building comprises a mounting frame and a rotating frame rotatably arranged on the mounting frame, the rotating frame is externally provided with a handle, the rotating frame is slidably connected with the handle, a guide assembly is arranged between the rotating frame and the handle, and the guide assembly is used for guiding the handle to slide and be clamped with the rotating frame; and a locking assembly is arranged on the rotating frame and used for locking the handle and the rotating frame. The application has the effect that the door lock handle can be conveniently replaced.

Description

Technical Field

[0001] This application relates to the field of door lock technology, and in particular to a door lock device for emergency exits in public buildings. Background Technology

[0002] Door locks are devices that secure doors mechanically or electronically, and are widely used in homes and public places. As a security product, a door lock must possess both security and stability. Security can be measured in two aspects: resistance to intentional damage, pranks, and violent acts; and prevention of technical unlocking. Stability is reflected in the lock's ability to open and close reliably.

[0003] In related technologies, a door lock device includes a mounting bracket, a bolt, a drive frame, a transmission mechanism, a rotating bracket, and a handle, all mounted on a door. The drive frame is located inside the mounting bracket, and the bolt is slidably mounted inside the drive frame to lock the door. The rotating bracket is rotatably mounted inside the mounting bracket, and the transmission mechanism is connected between the bolt and the rotating bracket. The handle is fixedly mounted on the rotating bracket by screws. Rotating the handle causes the rotating bracket to rotate, thereby using the transmission mechanism to drive the bolt to slide, thus locking and releasing the bolt on the door.

[0004] Regarding the aforementioned technologies, the inventors have discovered that: since door lock handles in the prior art are usually fixed to the mounting bracket with screws, when the handle is damaged by external force, special tools are needed to remove the screws in order to replace the handle, which greatly increases the difficulty of replacing the handle, and therefore needs to be improved. Summary of the Invention

[0005] To facilitate the replacement of door lock handles, this application provides a door lock device for emergency passages in public buildings.

[0006] The door lock device for emergency passages in public buildings provided in this application adopts the following technical solution: A door lock device for emergency exits in public buildings includes a mounting frame and a rotating frame rotatably mounted on the mounting frame. A handle is provided on the outside of the rotating frame. The rotating frame is slidably connected to the handle. A guide component is provided between the rotating frame and the handle to guide the handle to slide and engage with the rotating frame. A locking component is provided on the rotating frame to lock the handle and the rotating frame together.

[0007] By adopting the above technical solution, the guide component facilitates the guidance of the handle, enabling the handle to be quickly assembled with the rotating frame; the locking component replaces the traditional screw structure to achieve a quick and efficient connection between the rotating frame and the handle, and by releasing the locking component, the handle can be easily and quickly disassembled, thus realizing the convenient replacement of the door lock handle.

[0008] Preferably, the guide assembly includes a guide rib, which is disposed inside the handle and the length direction of the guide rib is parallel to the sliding direction of the handle and the rotating frame. The side wall of the rotating frame is provided with a guide notch for the guide rib to abut, and the side wall of the guide rib abuts against the inner side wall of the guide notch.

[0009] By adopting the above technical solution, rotating the handle aligns the guide rib with the guide notch, and the handle is slidably sleeved onto the rotating frame along the length of the guide rib to achieve the docking and splicing of the handle and the rotating frame; and the side wall of the guide rib abuts against the inner side wall of the guide notch to achieve the purpose of rotating the handle to drive the rotating frame to rotate, thereby reducing the strong load on the locking component during the rotation of the handle to drive the rotating frame, thus ensuring the service life of the locking component.

[0010] Preferably, the locking assembly includes a locking rod, an anti-detachment plate, and an elastic element; the locking rod slides radially through the interior of the rotating frame, the anti-detachment plate is disposed at the end of the locking rod, and the side wall of the anti-detachment plate facing the locking rod abuts against the inner side wall of the rotating frame; the elastic element is disposed inside the rotating frame, one end of the elastic element penetrates the locking rod, and the elastic element uses its own elastic force to drive the locking rod closer to the handle; the inner wall of the handle has a locking groove for the end of the locking rod to abut into, and the outer peripheral wall of the handle has a driving hole for communicating with the locking groove.

[0011] By adopting the above technical solution, the elastic element drives the locking rod and the anti-slip plate close to the handle, and makes the locking rod stably abut against the inside of the locking groove, so as to restrict the handle from sliding and rotating freely relative to the rotating frame, thus realizing the quick assembly of the handle and the rotating frame; the user uses a sharp object to penetrate the drive hole and presses the locking rod to gradually disengage from the locking groove, so as to quickly separate the handle and the rotating frame, thereby realizing the convenient disassembly and assembly of the handle.

[0012] Preferably, the handle has a guide surface on the end wall facing the mounting bracket to assist in pressing the locking rod away from the handle.

[0013] By adopting the above technical solution, during the process of the handle sliding into the rotating frame, the guide surface can easily squeeze the pop-out locking rod, so that the locking rod is stored inside the rotating frame, thereby facilitating the quick splicing and assembly of the handle and the rotating frame.

[0014] Preferably, the handle is provided with a pressing component for stabilizing the locking state of the unlocking component, and a limiting component for stabilizing the pressing state of the pressing component.

[0015] By adopting the above technical solution, the pressing component presses the locking rod, reducing the need for disassembly personnel to carry additional sharp objects and further improving the convenience of disassembling and assembling the handle; the limiting component limits the pressing state of the pressing component on the locking rod, improving the stability of the pressing component pressing the locking rod and further improving the stability of handle disassembly.

[0016] Preferably, the pressing assembly includes a fixing sleeve, a pressing block, a pressing rod, and a resetting member; the fixing sleeve is disposed on the outer wall of the handle around the driving hole, the pressing block is slidably disposed inside the fixing sleeve, and the pressing rod is disposed on the side wall of the pressing block facing the locking rod for passing through the driving hole and pressing the locking rod; the resetting member is disposed between the pressing block and the fixing sleeve for using its own elastic force to drive the pressing block away from the handle.

[0017] By adopting the above technical solution, the fixing sleeve guides the movement direction of the pressing block and the pressing rod. The disassembly personnel press the pressing block with their fingers, causing the pressing rod to approach and press the locking rod, so that the locking rod gradually disengages from the locking groove, so that the handle and the rotating frame can be separated from each other. When the disassembly personnel's fingers are removed from the pressing block, the reset component drives the pressing block away from the locking rod through its own elastic force and gradually resets, so that the locking rod can be reset with the help of the elastic force of the elastic component.

[0018] Preferably, the limiting component includes a limiting block and a gripping plate; the limiting block is disposed on the peripheral wall of the pressing block, and the gripping plate is disposed on the top of the pressing block; the inner peripheral wall of the fixing sleeve is provided with a rotating groove for the limiting block to rotate, the inner side wall of the fixing sleeve is provided with an extension groove for communicating with the rotating groove along the height direction of the fixing sleeve, and the fixing sleeve is provided with a limiting groove for communicating with the extension groove, and the limiting groove is located at the end of the extension groove facing the locking rod.

[0019] By adopting the above technical solution, the initial position of the limiting block is inside the rotating groove, and the limiting block abuts against the inner wall of the rotating groove, so as to prevent the pressing block from driving the pressing rod to press down on the locking rod, reducing the phenomenon of the handle being separated due to the user's fingers accidentally touching the pressing block; when it is necessary to disassemble the handle, the disassembly personnel hold the grip plate with their fingers and rotate it, so that the limiting block extends into the groove as it rotates inside the rotating groove, and then the disassembly personnel press the pressing block, so that the limiting block moves towards the extension groove, and the pressing rod passes through the drive hole and presses the locking rod; Then, the disassembly personnel rotate the pressing block by holding the plate, causing the limiting block to move into the extension groove; by using the limiting block to abut against the inner wall of the extension groove, the movement of the reset component on the pressing block is restricted, so that the pressing rod remains in the state of passing through the drive hole and pressing the locking rod, so that the locking rod remains in the state of retracting into the rotating frame and disengaging from the locking groove, so that the handle can be disengaged from the rotating frame. Furthermore, by pressing the locking lever stably, the phenomenon that sharp objects can easily deviate from pressing the locking lever during the process of sliding the handle away from the rotating frame, causing the locking lever to re-lock into the locking groove, is reduced, thereby improving the stability and convenience of handle disassembly.

[0020] Preferably, the handle is provided with a drive component for stably releasing the locking state of the locking component.

[0021] By adopting the above technical solution, the drive component can stably release the locking component, so as to facilitate the stable separation of the handle from the rotating frame, thereby realizing the convenient disassembly and assembly of the handle.

[0022] Preferably, the drive assembly includes a rotating component, an extension shaft, a drive plate, and a drive block; the rotating component is rotatably disposed inside the rotating frame, and the end of the rotating component away from the mounting frame is exposed in the handle; the extension shaft is disposed at the end of the rotating component facing the anti-detachment plate, the drive plate is sleeved on the extension shaft, and the drive block is disposed on the side wall of the drive plate; the anti-detachment plate has a through-hole for the drive plate and the drive block to be inserted, and when the drive block abuts against the through-hole away from the side wall of the drive plate, the locking rod disengages from the locking groove.

[0023] By adopting the above technical solution, the rotating component is driven to rotate, which in turn drives the drive plate and drive block to rotate via the extension shaft. This causes the drive block to abut against the inner wall of the insertion hole, away from the side wall of the drive plate. As a result, the anti-detachment plate causes the locking rod to gradually disengage from the locking groove, thereby achieving stable disengagement of the handle from the rotating frame and reducing the need for external tools to drive the locking rod out of the locking groove.

[0024] Preferably, the drive assembly further includes a sliding ring and a misalignment component; the sliding ring is disposed on the outer peripheral wall of the rotating component, and the rotating component can slide along the axial direction of the rotating frame; the misalignment component is disposed between the sliding ring and the inner side wall of the handle, so as to drive the drive plate, drive block and anti-detachment plate to misalign through its own elastic force.

[0025] By adopting the above technical solution, the misaligned component uses its own elasticity to drive the sliding ring to move the rotating component, extension shaft, drive plate and drive block along the axial direction of the rotating frame, so that the drive block and drive plate are misaligned with the anti-detachment plate. This reduces the phenomenon of the user arbitrarily and violently driving the rotating component to rotate or the rotating component accidentally detaching during rotation, thus ensuring the stable use of the handle and reducing the phenomenon of the handle accidentally falling off.

[0026] In summary, this application includes at least one of the following beneficial technical effects: By setting up a guide component, the handle can be easily guided, allowing for quick assembly of the handle and the rotating frame. The locking component replaces the traditional screw structure to achieve a quick and efficient connection between the rotating frame and the handle. By releasing the locking component, the handle can be easily and quickly disassembled, thus enabling convenient replacement of the door lock handle. By setting up a pressing component to press the locking bar, the need for disassembly personnel to carry additional sharp objects is reduced, further improving the convenience of disassembling and assembling the handle; the limiting component limits the pressing state of the pressing component on the locking bar, improving the stability of the pressing component on the locking bar, and further improving the stability of handle disassembly. By setting up misalignment components, the drive block and drive plate are both misaligned with the anti-detachment plate, reducing the possibility of the handle accidentally detaching due to users arbitrarily or violently driving the rotating parts or during rotation. This ensures the stable use of the handle and reduces the occurrence of accidental handle detachment. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a door lock device for emergency passages in public buildings, according to Embodiment 1 of this application.

[0028] Figure 2 This is an exploded view of the connection relationship between the handle, rotating frame and locking assembly in Embodiment 1.

[0029] Figure 3 This is a cross-sectional schematic diagram of the internal structure of the handle in Example 1.

[0030] Figure 4 This is a cross-sectional schematic diagram showing the connection relationship between the handle, rotating frame, and locking assembly in Embodiment 1.

[0031] Figure 5 This is a schematic diagram of the connection relationship between the handle and the pressing component in Embodiment 2.

[0032] Figure 6 This is a cross-sectional schematic diagram of the connection relationship between the handle and the pressing component in Embodiment 2.

[0033] Figure 7 This is an exploded view of the connection relationship between the pressing component and the limiting component in Embodiment 2.

[0034] Figure 8 This is a schematic diagram of the connection relationship between the anti-detachment plate and the drive block in Example 3.

[0035] Figure 9 This is a cross-sectional schematic diagram of the connection relationship between the anti-detachment plate and the drive assembly in Embodiment 3.

[0036] Figure 10 This is a cross-sectional schematic diagram of the connection relationship between the locking rod and the drive assembly in Embodiment 3.

[0037] Explanation of reference numerals in the attached figures: 1. Mounting bracket; 11. Rotating bracket; 111. Guide notch; 12. Handle; 121. Locking groove; 122. Drive hole; 123. Guide surface; 2. Guide assembly; 21. Guide rib; 3. Locking assembly; 31. Locking rod; 32. Anti-detachment plate; 321. Insertion hole; 33. Elastic element; 4. Pressing assembly; 41. Fixing sleeve; 411. Rotating groove; 412. Extension groove; 413. Limiting groove; 42. Pressing block; 43. Pressing rod; 44. Reset element; 5. Limiting assembly; 51. Limiting block; 52. Grip plate; 6. Drive assembly; 61. Rotating element; 62. Extension shaft; 63. Drive plate; 64. Drive block; 65. Sliding ring; 66. Misalignment element. Detailed Implementation

[0038] The following is in conjunction with the appendix Figure 1-10 This application will be described in further detail.

[0039] Example 1: Example 1 of this application discloses a door lock device for emergency passages in public buildings, for convenient replacement of door lock handles.

[0040] Reference Figure 1 and Figure 2 A door lock device for emergency exits in public buildings includes a mounting bracket 1 fixed to the door body by screws and a rotating bracket 11 rotatably connected to the mounting bracket 1. A handle 12 is slidably sleeved on the outside of the rotating bracket 11. In this embodiment, the handle 12 can be spherical or wrench-shaped, and the lock cylinder can be located inside the handle 12 or on the mounting bracket 1. A guide assembly 2 is installed between the rotating bracket 11 and the handle 12 to guide the handle 12 to slide and engage with the rotating bracket 11. A locking assembly 3 is installed on the rotating bracket 11 to lock the connection between the handle 12 and the rotating bracket 11.

[0041] Reference Figure 2 and Figure 3 The guide assembly 2 includes a guide rib 21, which is integrally formed on the inner sidewall of the handle 12, and the length direction of the guide rib 21 is parallel to the sliding connection direction between the handle 12 and the rotating frame 11. The sidewall of the rotating frame 11 has a guide notch 111 for the guide rib 21 to abut, and the sidewall of the guide rib 21 abuts against the inner sidewall of the guide notch 111 to guide the sliding direction of the handle 12.

[0042] Reference Figure 2 and Figure 4The locking assembly 3 includes a locking rod 31, an anti-detachment plate 32, and an elastic element 33; in this embodiment, the elastic element 33 is a steel needle with good elasticity. The locking rod 31 is slidably connected to the interior of the rotating frame 11 along the radial direction of the rotating frame 11, and one end of the locking rod 31 penetrates through the side wall of the rotating frame 11 and is exposed outside the rotating frame 11. The anti-detachment plate 32 is located inside the rotating frame 11, and the anti-detachment plate 32 is integrally formed on the end of the locking rod 31, and the side wall of the anti-detachment plate 32 facing the locking rod 31 abuts against the inner side wall of the rotating frame 11, thereby preventing the anti-detachment plate 32 and the locking rod 31 from completely detaching from the rotating frame 11. The handle 12 has a guide surface 123 on the end wall facing the mounting frame 1 to assist in pressing the locking rod 31 away from the handle 12.

[0043] Reference Figure 2 and Figure 4 The elastic element 33 is fixedly installed inside the rotating frame 11 and extends along the axial direction of the rotating frame 11. One end of the elastic element 33 facing the handle 12 passes through the locking rod 31, and the end of the elastic element 33 passing through the locking rod 31 is inclined away from the anti-detachment plate 32, so that the elastic element 33 uses its own elastic force to drive the locking rod 31 closer to the handle 12. A locking groove 121 is provided on the inner wall of the handle 12, allowing the end of the locking rod 31 away from the anti-detachment plate 32 to abut against it, thereby preventing the handle 12 from disengaging from the rotating frame 11. A driving hole 122 is provided through the outer peripheral wall of the handle 12, and the driving hole 122 communicates with the inside of the locking groove 121, so that a person disassembling the handle can use a sharp object such as a pin to press the locking rod 31 out of the locking groove 121 through the driving hole 122.

[0044] The implementation principle of a door lock device for emergency passages in public buildings in Embodiment 1 of this application is as follows: When installing the handle 12, align the guide rib 21 with the guide notch 111 and slide the handle 12 along the length of the rotating frame 11 to slide the handle 12 onto the outside of the rotating frame 11.

[0045] During the sliding engagement of the handle 12, the guide surface 123 abuts against the locking rod 31, driving the locking rod 31 to move towards the anti-detachment plate 32. This causes the elastic element 33 to undergo elastic deformation, allowing the locking rod 31 to gradually move into the rotating frame 11. Once the locking groove 121 and the locking rod 31 are aligned, the elastic element 33 recovers its deformation, stably pressing the locking rod 31 into the locking groove 121 to prevent the handle 12 from detaching from the rotating frame 11. Thus, by replacing the complex screw connection structure with the locking assembly 3, a convenient installation of the handle 12 and the rotating frame 11 is achieved.

[0046] When disassembling the handle 12, the disassembly personnel use a sharp object such as a pin to press the locking rod 31 through the drive hole 122, so that the locking rod 31 gradually disengages from the locking groove 121, thereby making it easier to slide the handle 12 away from the rotating frame 11, so as to realize the convenient separation of the handle 12 from the rotating frame 11.

[0047] Example 2: The difference between Example 2 and Example 1 is as follows: Refer to Figure 5 and Figure 6 The handle 12 is equipped with a pressing component 4 for stabilizing and releasing the locking state of the locking component 3. The pressing component 4 includes a fixing sleeve 41, a pressing block 42, a pressing rod 43, and a reset member 44; in this embodiment, the reset member 44 is a spring. The fixing sleeve 41 is fixedly welded to the outer wall of the handle 12, and the fixing sleeve 41 is coaxially arranged with the driving hole 122.

[0048] Reference Figure 6 and Figure 7 The pressing block 42 is slidably installed inside the fixed sleeve 41 along the axial direction of the fixed sleeve 41. The pressing rod 43 is integrally formed on the side wall of the pressing block 42 facing the locking rod 31, so as to pass through the drive hole 122 and press the locking rod 31. The reset member 44 is glued between the pressing block 42 and the fixed sleeve 41. One end of the reset member 44 is glued to the side wall of the pressing block 42 facing the pressing rod 43, and the other end of the reset member 44 is glued to the side wall of the fixed sleeve 41 facing the pressing block 42, so as to drive the pressing block 42 to move the pressing rod 43 away from the handle 12 and the locking rod 31 by its own elastic force.

[0049] Reference Figure 6 and Figure 7 A limiting component 5 is installed on the handle 12 to stabilize the pressing state of the pressing component 4. The limiting component 5 includes a limiting block 51 and a grip plate 52. The grip plate 52 is fixedly connected to the side wall of the pressing block 42 away from the pressing rod 43. The limiting block 51 is integrally formed on the peripheral wall of the pressing block 42. A rotating groove 411 for the limiting block 51 to rotate is opened on the inner peripheral wall of the fixing sleeve 41, and the rotating groove 411 extends along the circumference of the fixing sleeve 41. An extension groove 412 is opened on the inner side wall of the fixing sleeve 41 along the height direction of the fixing sleeve 41, and the end of the extension groove 412 away from the locking rod 31 is connected to the inside of the rotating groove 411 to allow the limiting block 51 to slide.

[0050] Reference Figure 6 and Figure 7A limiting groove 413 is provided on the inner side wall of the fixed sleeve 41, and the limiting groove 413 is located at the end of the extension groove 412 facing the locking rod 31. The limiting groove 413 is connected to the inside of the extension groove 412 to allow the limiting block 51 to slide. When the limiting block 51 slides into the limiting groove 413, the pressing rod 43 passes through the drive hole 122 and presses the locking rod 31 to completely disengage from the locking groove 121, so that the handle 12 can disengage from the rotating frame 11. The limiting block 51 restricts the pressing block 42 and the pressing rod 43 from being driven by the reset member 44 to reset themselves.

[0051] Example 3: The difference between Example 3 and Example 1 is as follows: Refer to Figure 8 and Figure 9 The handle 12 is equipped with a drive assembly 6 for stably releasing the locking state of the locking assembly 3. The drive assembly 6 includes a rotating member 61, an extension shaft 62, a drive plate 63, a drive block 64, a sliding ring 65, and a misalignment member 66. In this embodiment, the rotating member 61 can be a lock cylinder or a cylinder with a handle, and the misalignment member 66 is a spring. The rotating member 61 is rotatably mounted inside the rotating frame 11, and the end of the rotating member 61 away from the mounting frame 1 passes through the handle 12 and is exposed outside the handle 12.

[0052] Reference Figure 8 and Figure 9 The extension shaft 62 is integrally formed on the end of the rotating member 61 facing the anti-detachment plate 32. In this embodiment, the drive plate 63 is annular, and the drive plate 63 is fixedly sleeved 41 to the end of the extension shaft 62 facing the drive plate 63. The drive block 64 is integrally formed on the side wall of the drive plate 63. The anti-detachment plate 32 is provided with a through-hole 321 for the drive plate 63 and the drive block 64 to slide into. When the extension shaft 62 and the drive plate 63 are rotated, and the drive block 64 moves away from the side wall of the drive plate 63 and abuts against the inner side wall of the through-hole 321, the anti-detachment plate 32 causes the locking rod 31 to gradually move away from the elastic member 33, and the locking rod 31 disengages from the locking groove 121.

[0053] Reference Figure 8 and Figure 9 The sliding ring 65 is fixedly sleeved 41 and attached to the outer peripheral wall of the rotating member 61. In this embodiment, the sliding ring 65 is rotatably connected to the rotating frame 11, and the rotating member 61 can slide along the axial direction of the rotating frame 11. The misalignment member 66 is installed between the sliding ring 65 and the inner side wall of the handle 12. One end of the misalignment member 66 is glued to the side wall of the sliding ring 65 away from the anti-detachment plate 32, and the other end of the misalignment member 66 is glued to the inner side wall of the handle 12. The extension and retraction direction of the misalignment member 66 is parallel to the sliding direction of the rotating member 61. The misalignment of the drive plate 63 and the drive block 64 is achieved by the elastic force of the misalignment member 66 driving the drive plate 63 and the drive block 64 to be located on the side of the anti-detachment plate 32 facing the mounting frame 1.

[0054] Reference Figure 8 and Figure 9 When the rotating component 61 is the lock cylinder, that is, the lock cylinder hole of the door lock is located inside the handle 12 and the rotating frame 11; the key is inserted into the lock cylinder and drives the lock cylinder to rotate in the non-locking / locking position, and the key is locked by the tumblers inside the lock cylinder. At this time, the key pulls the lock cylinder to move towards the side of the handle 12 away from the mounting frame 1, so that the extension shaft 62 drives the drive plate 63 and the drive block 64 to gradually move into the insertion hole 321, so that the drive block 64 can rotate to make the anti-disengagement plate 32 drive the locking rod 31 to gradually disengage from the locking groove 121, and reduce the phenomenon of the handle 12 accidentally falling off during normal use of the key.

[0055] Reference Figure 8 and Figure 10 When the rotating part 61 is a cylinder with a handle, that is, when the position of the lock cylinder hole of the door lock is located on the surface of the mounting bracket 1 and is different from the position of the handle 12 and the rotating bracket 11; the fingers grip the handle and directly pull the rotating part 61 toward the side of the handle 12 away from the mounting bracket 1, so that the extension shaft 62 drives the drive plate 63 and the drive block 64 to gradually move into the insertion hole 321, so that the drive block 64 can rotate to make the anti-disengagement plate 32 drive the locking rod 31 to gradually disengage from the locking groove 121.

[0056] Reference Figure 8 and Figure 9 In summary, by utilizing the misalignment of the drive plate 63 and drive block 64 on the side of the anti-detachment plate 32 facing the mounting bracket 1, when the user applies force in a general manner towards the inside of the handle 12, the drive block 64 and the anti-detachment plate 32 are misaligned, reducing the possibility of the handle 12 accidentally detaching from the rotating bracket 11. When the disassembly personnel apply force differently than the general method of applying force towards the inside of the handle 12, by only applying force towards the outside of the handle 12 to pull out the rotating part 61, and causing the drive block 64 to slide into the insertion hole 321, the drive block 64 and the anti-detachment plate 32 are aligned.

[0057] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A door lock device for emergency passages in public buildings, comprising a mounting frame (1) and a rotating frame (11) rotatably mounted on the mounting frame (1), wherein the rotating frame (11) is provided with a handle (12) on its exterior; characterized in that: The rotating frame (11) is slidably connected to the handle (12). A guide component (2) is provided between the rotating frame (11) and the handle (12) to guide the handle (12) to slide and engage with the rotating frame (11). A locking component (3) is provided on the rotating frame (11) to lock the handle (12) and the rotating frame (11).

2. A door lock device for emergency passages in public buildings according to claim 1, characterized in that: The guide assembly (2) includes a guide rib (21), which is disposed inside the handle (12). The length direction of the guide rib (21) is parallel to the sliding direction of the handle (12) and the rotating frame (11). The side wall of the rotating frame (11) is provided with a guide notch (111) for the guide rib (21) to abut. The side wall of the guide rib (21) abuts against the inner side wall of the guide notch (111).

3. A door lock device for emergency passages in public buildings according to claim 1, characterized in that: The locking assembly (3) includes a locking rod (31), an anti-detachment plate (32), and an elastic element (33). The locking rod (31) slides radially through the rotating frame (11) inside the rotating frame (11). The anti-detachment plate (32) is located at the end of the locking rod (31), and the side wall of the anti-detachment plate (32) facing the locking rod (31) abuts against the inner side wall of the rotating frame (11). The elastic element (33) is located inside the rotating frame (11), and one end of the elastic element (33) passes through the locking rod (31). The elastic element (33) uses its own elastic force to drive the locking rod (31) close to the handle (12). The inner wall of the handle (12) is provided with a locking groove (121) for the end of the locking rod (31) to abut. The outer peripheral wall of the handle (12) is provided with a driving hole (122) for communicating with the locking groove (121).

4. A door lock device for emergency passages in public buildings according to claim 3, characterized in that: The handle (12) has a guide surface (123) on the end wall facing the mounting bracket (1) to assist in pressing the locking rod (31) away from the handle (12).

5. A door lock device for emergency passages in public buildings according to claim 3, characterized in that: The handle (12) is provided with a pressing component (4) for stabilizing the locked state of the locking component (3), and the handle (12) is provided with a limiting component (5) for stabilizing the pressed state of the pressing component (4).

6. A door lock device for emergency passages in public buildings according to claim 5, characterized in that: The pressing assembly (4) includes a fixed sleeve (41), a pressing block (42), a pressing rod (43), and a reset member (44); the fixed sleeve (41) is disposed on the outer wall of the handle (12) around the driving hole (122), the pressing block (42) is slidably disposed inside the fixed sleeve (41), and the pressing rod (43) is disposed on the side wall of the pressing block (42) facing the locking rod (31) for penetrating the driving hole (122) and pressing the locking rod (31); the reset member (44) is disposed between the pressing block (42) and the fixed sleeve (41) for using its own elastic force to drive the pressing block (42) away from the handle (12).

7. A door lock device for emergency passages in public buildings according to claim 6, characterized in that: The limiting component (5) includes a limiting block (51) and a gripping plate (52); the limiting block (51) is disposed on the peripheral wall of the pressing block (42), and the gripping plate (52) is disposed on the top of the pressing block (42); the inner peripheral wall of the fixing sleeve (41) is provided with a rotating groove (411) for the limiting block (51) to rotate, the inner side wall of the fixing sleeve (41) is provided with an extension groove (412) for communicating with the rotating groove (411) along the height direction of the fixing sleeve (41), and the fixing sleeve (41) is provided with a limiting groove (413) for communicating with the extension groove (412), and the limiting groove (413) is located at the end of the extension groove (412) facing the locking rod (31).

8. A door lock device for emergency passages in public buildings according to claim 3, characterized in that: The handle (12) is provided with a drive component (6) for stabilizing the locking state of the locking component (3).

9. A door lock device for emergency passages in public buildings according to claim 8, characterized in that: The drive assembly (6) includes a rotating member (61), an extension shaft (62), a drive plate (63), and a drive block (64). The rotating member (61) is rotatably disposed inside the rotating frame (11), and the end of the rotating member (61) away from the mounting frame (1) is exposed on the handle (12). The extension shaft (62) is disposed at the end of the rotating member (61) facing the anti-detachment plate (32). The drive plate (63) is sleeved on the extension shaft (62), and the drive block (64) is disposed on the side wall of the drive plate (63). The anti-detachment plate (32) has a through-hole (321) for inserting the drive plate (63) and the drive block (64). When the drive block (64) moves away from the side wall of the drive plate (63) and abuts against the through-hole (321), the locking rod (31) disengages from the locking groove (121).

10. A door lock device for emergency passages in public buildings according to claim 9, characterized in that: The drive assembly (6) further includes a sliding ring (65) and a misalignment member (66); the sliding ring (65) is disposed on the outer peripheral wall of the rotating member (61), and the rotating member (61) can slide along the axial direction of the rotating frame (11); the misalignment member (66) is disposed between the sliding ring (65) and the inner side wall of the handle (12) to drive the drive plate (63), drive block (64) and anti-detachment plate (32) to misalign through its own elastic force.

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