Emergency escape fireproof lock with height difference between inside and outside

Abstract

The utility model relates to an inside and outside height difference emergency escape fireproof lock, and relates to the technical field of door locks. The emergency escape fireproof lock comprises a mounting frame, a locking mechanism, an outer door handle and an inner door switch, the locking mechanism comprises a lock frame, the locking mechanism further comprises a driving frame and a driving assembly, the driving frame is rotationally connected with the mounting frame, the driving frame drives the lock frame to slide through the driving assembly, and the outer door handle is connected with the inner door switch. The outer door handle is located above the driving frame and provided with a lifting frame, the bottom end of the lifting frame extends downwards and is connected with the driving frame, and the outer door handle drives the driving frame to rotate by controlling the lifting frame to move. The door lock has the effect that the probability that a child opens the door lock outside the door is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of door locks, and in particular to an emergency escape fireproof lock with a height difference between the inside and outside of the door. Background Art

[0002] With the continuous development of social economy and the improvement of scientific and technological levels, people's safety awareness is also constantly improving. Door locks, as a mechanism that locks the door body to the door frame or wall, can effectively prevent unscrupulous elements from opening the door body and play an important role in people's daily lives.

[0003] A double-door lock is currently available. The lock includes a mounting frame for mounting on a door and a locking mechanism mounted on the mounting frame. The locking mechanism includes a lock frame, a rotating frame, a drive assembly, an inner door handle, and an outer door handle. The lock frame is rotatably connected to the mounting frame and is inserted into the door frame. The rotating frame is rotatably connected to the mounting frame and is driven to rotate by the drive assembly. The inner door handle and the outer door handle are mounted on the inside and outside of the door, respectively, at the same height. Both the inner door handle and the outer door handle are connected to the rotating frame to drive the rotating frame to rotate. During use, the user rotates the inner door handle or the outer door handle, causing the rotating frame to rotate. The rotating frame then drives the lock frame to rotate via the drive assembly, thereby releasing the lock from the door body and the door frame.

[0004] With regard to the above-mentioned related technologies, considering the needs of users of different ages and heights, the position of the inner door handle is generally set lower so that users of different heights can turn the inner door handle to open the door. However, in the existing technology, the inner door handle and the outer door handle are directly connected to the rotating frame, so that the inner door handle and the outer door handle are at the same height. This makes it easy for children outside the door to open the door through the outer door handle, thereby disturbing people inside the door who are in a meeting, office or resting state, so there is room for improvement. Utility Model Content

[0005] In order to reduce the chance of children opening the door lock from outside, the present application provides an emergency escape fireproof lock with a height difference between the inside and outside.

[0006] This application provides an emergency escape fire lock with a height difference between the inside and outside, which adopts the following technical solutions:

[0007] An emergency escape fire lock with a height difference between inside and outside, comprising a mounting frame, a locking mechanism, an outer door handle and an inner door switch, the locking mechanism comprising a lock frame, the locking mechanism further comprising a drive frame and a drive assembly, the drive frame being rotatably connected to the mounting frame, the drive frame driving the lock frame to slide through the drive assembly, the outer door handle being located above the drive frame and being provided with a lifting frame, the bottom end of the lifting frame extending downward and being connected to the drive frame, the outer door handle driving the drive frame to rotate by controlling the movement of the lifting frame.

[0008] By adopting the above technical solution, compared with the prior art, in which the outer door handle and the inner door handle are directly connected to the rotating frame, the outer door handle and the inner door handle are at the same height. The present application arranges the driving frame, the outer door handle and the pulling frame, so that the outer door handle can be arranged above the driving frame, and the outer door handle can be displaced by driving the pulling frame, thereby driving the driving frame to rotate. There is no need to arrange the outer door handle at the same height as the inner door switch, so that the outer door handle can drive the driving frame to rotate, thereby effectively increasing the setting height of the outer door handle, effectively reducing the chance of children touching the outer door handle from outside the door, and thus reducing the chance of children opening the door lock through the outer door handle.

[0009] Preferably, the lock frame includes an upper locking frame and a lower locking frame, and the upper locking frame and the lower locking frame are both slidably connected to the mounting frame. The top end of the upper locking frame extends upward and is used to be inserted into the door frame or wall, and the bottom end of the lower locking frame extends downward and is used to be inserted into the door frame or wall. The driving assembly is used to drive the upper locking frame and the lower locking frame to slide in opposite directions together.

[0010] By adopting the above technical solution, the specific setting of the lock frame enables the upper locking frame and the lower locking frame to be inserted into the door frame or wall under the drive of the driving component, thereby achieving locking of the upper and lower sides of the door body, effectively increasing the locking effect of the door lock of this application on the door body, and increasing the use effect of the door lock of this application; at the same time, the driving frame in this application can drive the upper locking frame and the lower locking frame to slide in the opposite direction together through the driving component, which effectively facilitates the user to unlock and drive the upper unlocking frame and the lower unlocking frame.

[0011] Preferably, a retaining groove is provided on the side wall of the upper locking frame, and a fixing mechanism is also provided on the top of the upper locking frame, the fixing mechanism includes an additional frame and a retaining assembly, the additional frame is used to be installed on the door body, the retaining assembly includes a retaining frame and a reset member, one end of the retaining frame is rotatably connected to the additional frame, and a retaining part is provided on the retaining frame, the retaining part is used to be inserted into the retaining groove, and the reset member is used to reset the retaining frame.

[0012] By adopting the above technical solution, the setting of the retaining component enables the upper locking frame to be completely separated from the door frame or wall, the retaining frame can continue to be inserted into the retaining groove under the elastic force of the reset member, thereby locking the upper locking frame, so that the upper locking frame maintains the current unlocked position, and the driving frame maintains the current position, thereby enabling the upper locking frame and the lower locking frame to remain in the unlocked state, so that the user only needs to unlock the door lock of this application once, so that the upper locking frame and the lower locking frame can remain in the unlocked state, which effectively facilitates the user to open the door body.

[0013] Preferably, a reinforcement groove is provided on the side wall of the upper locking frame, and the fixing mechanism also includes a reinforcement component, which includes a reinforcement frame and a reset spring plate, one end of the reset spring plate is connected to the additional frame, and the other end is connected to one end of the reinforcement frame, and the other end of the reinforcement frame is inserted into the reinforcement groove.

[0014] By adopting the above technical solution, the reinforcement component is set up so that the reinforcement frame can be inserted into the reinforcement groove, thereby hindering the displacement of the upper locking frame, effectively reducing the probability of the upper locking frame displacing downward under its own gravity when the upper locking frame is inserted into the door frame or wall, thereby ensuring the locking effect of the upper locking frame.

[0015] Preferably, the driving assembly includes an upper connecting frame and a lower connecting frame, one end of the upper connecting frame is rotatably connected to one end of the driving frame, and the other end is rotatably connected to the bottom end of the upper locking frame, one end of the lower connecting frame is rotatably connected to the other end of the driving frame, and the other end is rotatably connected to the top end of the lower locking frame, and the middle part of the driving frame is rotatably connected to the mounting frame.

[0016] When the cam is unlocked, the lever arm is unlocked, and the lever arm is unlocked to unlock the lower cam, thereby unlocking the cam and unlocking the lower cam.

[0017] Preferably, the inner door switch includes a fixed frame, a pushing frame, a switch member and a switch frame, the fixed frame is used to be installed on the inner side of the door body, the pushing frame is slidingly connected to the fixed frame, and one end of the pushing frame extends out of the fixed frame, the switch frame is rotatably connected to the mounting frame, one end of the switch frame abuts against one end of the driving frame, the pushing frame drives the switch frame to rotate through the switch member, and drives the driving frame to rotate by abutting.

[0018] By adopting the above technical solution, the specific setting of the inner door switch enables the user to push the pushing frame to slide, so that the pushing frame passes through the switch member, drives the switch frame to rotate, and makes the switch frame continuously resist one end of the driving frame, thereby pushing the driving frame to rotate, and realizing driving the driving frame inside the door; by setting an unlocking method of pushing the pushing frame to slide inside the door, it can adapt to the unlocking needs of various people to a great extent, so that the old, young, sick and disabled people can unlock the door lock of this application by pushing the pushing frame, which effectively facilitates the unlocking of the user and increases the unlocking speed of the door lock of this application, effectively improving the speed of the user to unlock and open the door in an emergency.

[0019] Preferably, the switch member includes an intermediate frame, which is located between the fixed frame and the pushing frame and rotates with the fixed frame. One end of the intermediate frame is against the pushing frame, and the other end of the intermediate frame extends to a side of the switch frame close to the driving frame and is against an end of the switch frame away from the driving frame.

[0020] By adopting the above technical solution, the intermediate frame is arranged so that after the user pushes the pushing frame to slide, the pushing frame can abut against one end of the intermediate frame, thereby pushing the intermediate frame to slide, and the other end of the intermediate frame abuts against the switch frame, thereby pushing one end of the switch frame to displace, causing the switch frame to rotate as a whole, thereby driving the switch frame, and effectively ensuring the smooth driving of the switch frame by the pushing frame.

[0021] Preferably, a reset assembly is further provided on the fixed frame, and the reset assembly includes a reset frame and a reset torsion spring. The reset frame is located between the fixed frame and the pushing frame and is rotatably connected to the fixed frame. One end of the reset frame is against the pushing frame, and the reset torsion spring is used to reset the reset frame.

[0022] By adopting the above technical solution and setting the reset assembly, the reset frame can continuously abut against the side wall of the push frame under the elastic force of the reset torsion spring, so that the push frame can return to its original position under the abutment of the reset frame for the user's next use, effectively facilitating the user's operation of the push frame and facilitating the user to unlock the door lock of this application.

[0023] Preferably, the lifting frame includes a driving frame, an intermediate rope and a hook frame, one end of the driving frame is mounted on the outer door handle, and the other end of the driving frame extends below the rotation axis of the outer door handle, one end of the intermediate rope is connected to the bottom end of the driving frame, and the other end extends downward and is connected to the hook frame, and the hook frame is sleeved on one end of the driving frame close to the outer door handle.

[0024] By adopting the above technical solution, the specific setting of the lifting frame enables the user to hold the outer door handle outside the door, and when the outer door handle is rotated, the outer door handle can drive the driving frame to rotate together, thereby changing the height of the driving frame connected to the middle rope, so that the driving frame drives the top end of the middle rope to move upward, so that the middle rope pulls the hook frame to move upward, so that the hook frame drives one end of the driving frame to move, thereby realizing the driving of the driving frame to rotate, which effectively facilitates the user to drive the driving frame; at the same time, the specific setting of the lifting frame can effectively increase the vertical distance between the outer door handle and the driving frame, so that relevant personnel can change the height of the outer door handle by changing the length of the middle rope, effectively reducing the chance of children accidentally opening the door lock of this application through the outer door handle.

[0025] Preferably, the driving frame is further provided with an elastic member, and the elastic member is used for resetting the driving frame through its own elastic force.

[0026] By adopting the above technical solution, the setting of the elastic member enables the elastic member to drive the driving frame to reset through its own elastic force, so that after the user releases the outer door handle or pushes the frame, the driving frame can automatically return to the initial position, thereby causing the upper locking frame and the lower locking frame to return to their initial positions, effectively facilitating the user's next use.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. The arrangement of the drive frame, the outer door handle, and the lifting frame allows the outer door handle to be arranged above the drive frame. The outer door handle can be moved by driving the lifting frame, thereby driving the drive frame to rotate. Therefore, it is no longer necessary to arrange the outer door handle at the same height as the inner door switch. The outer door handle can drive the drive frame to rotate, thereby effectively increasing the setting height of the outer door handle, effectively reducing the chance of children touching the outer door handle from outside the door, and thus reducing the chance of children opening the door lock through the outer door handle;

[0029] 2. The specific arrangement of the lock frame and the drive assembly enables the two ends of the drive frame to simultaneously drive one end of the upper connecting frame and the lower connecting frame to move in opposite directions, thereby realizing the linkage between the upper locking frame and the lower locking frame. As a result, the upper locking frame and the lower locking frame can be inserted into the door frame or wall under the drive assembly, thereby locking the upper and lower sides of the door body, effectively increasing the locking effect of the door lock of the present application on the door body, and at the same time facilitating the user to unlock and drive the upper unlocking frame and the lower unlocking frame;

[0030] 3. The specific setting of the lifting frame enables that when the outer door handle is rotated, the outer door handle can drive the top end of the middle rope to move upward through the driving frame, so that the middle rope pulls the hook frame to move upward, thereby causing the hook frame to drive one end of the driving frame to move, thereby driving the driving frame to rotate. At the same time, it also enables relevant personnel to change the height of the outer door handle by changing the length of the middle rope, effectively reducing the chance of children accidentally opening the door lock of this application through the outer door handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the overall emergency escape fire lock with a height difference between the inside and outside in the embodiment of the present application.

[0032] Figure 2 It is a structural diagram used to reflect the external door handle in the embodiment of the present application.

[0033] Figure 3 It is a structural diagram used to reflect the drive component in the embodiment of the present application.

[0034] Figure 4 It is a structural diagram used to reflect the driving frame in the embodiment of the present application.

[0035] Figure 5 It is a structural diagram used to reflect the switch component in the embodiment of the present application.

[0036] Figure 6 It is a structural diagram used to reflect the retention component in the embodiment of the present application.

[0037] Figure 7 It is a structural diagram used to reflect the reinforcement component in the embodiment of the present application.

[0038] Explanation of reference numerals: 1. mounting frame; 2. locking mechanism; 21. locking frame; 211. upper locking frame; 2111. retaining groove; 2112. reinforcement groove; 212. lower locking frame; 22. driving frame; 23. driving assembly; 231. upper connecting frame; 232. lower connecting frame; 24. elastic member; 3. outer door handle; 31. sleeve frame; 32. protruding frame; 4. inner door switch; 41. fixing frame; 42. pushing frame; 43. switch member; 4 31. Intermediate frame; 44. Switch frame; 5. Pulling frame; 51. Driving frame; 52. Intermediate rope; 53. Hook frame; 6. Reset assembly; 61. Reset frame; 62. Reset torsion spring; 7. Fixing mechanism; 71. Additional frame; 72. Retention assembly; 721. Retention frame; 7211. Retention part; 7212. Unlocking part; 722. Reset member; 73. Reinforcement assembly; 731. Reinforcement frame; 732. Reset spring; 733. Limiting frame. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1-7 This application is described in further detail.

[0040] The embodiment of the present application discloses an emergency escape fire lock with a height difference between the inside and outside. Figure 1 、 Figure 2 and Figure 3 The interior-exterior height difference emergency escape fire lock includes a mounting frame 1, a locking mechanism 2, an exterior door handle 3, and an interior door switch 4. The locking mechanism 2 includes a lock frame 21, a drive frame 22, and a drive assembly 23. The mounting frame 1 is fixed to the door body by bolts. The drive frame 22 is rotatably connected to the mounting frame 1. The drive frame 22 drives the lock frame 21 to slide through the drive assembly 23. The exterior door handle 3 is located above the drive frame 22 and is provided with a lifting frame 5. The bottom end of the lifting frame 5 extends downward and is connected to the drive frame 22. The exterior door handle 3 controls the movement of the lifting frame 5, which drives the drive frame 22 to rotate.

[0041] Reference Figure 3 and Figure 4 The drive frame 22 is rotatably connected to the mounting frame 1 via a pin at its middle portion along its length, and the end of the drive frame 22 near the exterior door handle 3 is tilted downward. The drive frame 22 is also provided with an elastic member 24. In the embodiment of the present application, the elastic member 24 is configured as a tension spring. One end of the tension spring is sleeved around the end of the drive frame 22 near the exterior door handle 3, and the other end is sleeved around the mounting frame 1, thereby enabling the drive frame 22 to return to its original position through its own elastic force.

[0042] Reference Figure 3 The driving assembly 23 includes an upper connecting frame 231 and a lower connecting frame 232, and the locking frame 21 includes an upper locking frame 211 and a lower locking frame 212. In the embodiment of the present application, two upper connecting frames 231 and two lower connecting frames 232 are provided, and are respectively located on opposite sides of the driving frame 22.

[0043] Reference Figure 3 The bottom end of each upper connecting frame 231 is rotatably connected to the end of the drive frame 22 away from the outer door handle 3 via a pin, and the top end of each upper connecting frame 231 is rotatably connected to the bottom end of the upper locking frame 211 via a pin. The top end of each lower connecting frame 232 is rotatably connected to the end of the drive frame 22 near the outer door handle 3 via a pin, and the bottom end of each lower connecting frame 232 is rotatably connected to the top end of the lower locking frame 212 via a pin.

[0044] Reference Figure 2 and Figure 3The upper locking frame 211 and the lower locking frame 212 are both slidably connected to the mounting frame 1, and the sliding directions of the upper locking frame 211 and the lower locking frame 212 are both vertical. The top end of the upper locking frame 211 extends upward out of the door and is inserted into the door frame or wall. The bottom end of the lower locking frame 212 extends downward out of the door and is inserted into the door frame or wall, thereby locking the door.

[0045] Reference Figure 3 and Figure 4 In the initial state, the end of the drive frame 22 near the exterior door handle 3 is tilted downward. At this time, the elastic member 24 is in a stretched state, and the upper locking frame 211 and the lower locking frame 212 are both inserted into the door frame or wall. When the drive frame 22 rotates, and the end of the drive frame 22 near the exterior door handle 3 rotates upward, the drive frame 22 drives the upper connecting frame 231 and the lower connecting frame 232 to slide, so that the upper connecting frame 231 drives the upper locking frame 211 to slide downward, and the lower connecting frame 232 drives the lower locking frame 212 to slide upward. During this process, the elastic member 24 is stretched. Ultimately, the upper locking frame 211 and the lower locking frame 212 are both separated from the door frame or wall, so that the door lock is in an unlocked state, allowing the user to open the door body installed with the door lock of the present application.

[0046] Reference Figure 3 and Figure 4 The frame portion of the exterior door handle 3 is fixedly mounted to the outside of the door body via bolts. The exterior door handle 3 is also provided with a sleeve frame 31. This sleeve frame 31 is located within the door body and is fixedly mounted on the handle portion of the exterior door handle 3, allowing the user to rotate the sleeve frame 31 by turning the handle portion. A protruding frame 32 is also provided at the top of the sleeve frame 31, which is fixedly mounted on the sleeve frame 31.

[0047] Reference Figure 3 and Figure 4 The lifting frame 5 includes a driving frame 51, an intermediate rope 52 and a hook frame 53. One end of the driving frame 51 passes through the protruding frame 32 and is fixedly connected to the protruding frame 32. The other end of the driving frame 51 is bent to one side and extends below the rotation axis of the handle portion of the outer door handle 3.

[0048] Reference Figure 4 The top end of the intermediate rope 52 is fixedly connected to the bottom end of the driving frame 51. The bottom end of the intermediate rope 52 extends downward and is fixedly connected to one end of the hook frame 53. The other end of the hook frame 53 extends upward and wraps around the end of the driving frame 22 near the exterior door handle 3, thereby wrapping around the driving frame 22 and enabling the hook frame 53 to rotate the driving frame 22. The installation of the intermediate rope 52 allows personnel to adjust the height of the exterior door handle 3 during installation by controlling the length of the intermediate rope 52, thereby adapting to different needs.

[0049] Reference Figure 3 and Figure 4 In the initial state, that is, when the end of the driving frame 22 near the exterior door handle 3 is tilted downward, the protruding frame 32 is at the top of the sleeve frame 31, and the middle rope 52 is in a straightened state. When the user rotates the handle portion of the exterior door handle 3, the handle portion of the exterior door handle 3 drives the sleeve frame 31 to rotate together, thereby causing the bottom end of the driving frame 51 to displace and pull one end of the middle rope 52 upward. The middle rope 52 then passes through the hook frame 53, driving the end of the driving frame 22 near the exterior door handle 3 to rotate upward, thereby driving the driving frame 22.

[0050] Reference Figure 2 and Figure 5 The interior door switch 4 comprises a fixing frame 41, a pusher frame 42, a switch member 43, and a switch frame 44. The fixing frame 41 is fixed to the inner sidewall of the door body by bolts. The fixing frame 41 is located away from the opening at one end of the door body. One end of the pusher frame 42 extends into the opening of the fixing frame 41 and is slidably connected to the fixing frame 41. The pusher frame 42 slides in the direction of its width (i.e., the direction of the opening) to facilitate the user's pushing of the pusher frame 42. After pushing, the pusher frame 42 is mostly located within the opening of the fixing frame 41.

[0051] Reference Figure 5 The switch member 43 includes an intermediate frame 431, which is positioned within the opening of the fixed frame 41. The middle portion of the intermediate frame 431 is pivotally connected to the fixed frame 41 via a pin. One end of the intermediate frame 431 extends toward the push frame 42 and abuts against the inner sidewall of the push frame 42. The other end of the intermediate frame 431 extends toward the switch frame 44 and reaches the side of the switch frame 44 near the drive frame 22.

[0052] Reference Figure 3 and Figure 5 , the switch frame 44 is located on the side of the drive frame 22 away from the outer door handle 3. The switch frame 44 is rotatably connected to the mounting frame 1, and the rotation axis of the switch frame 44 is parallel to the rotation axis of the drive frame 22. The bottom end of the switch frame 44 extends downward and abuts against the end of the intermediate frame 431. The top end of the switch frame 44 extends in a direction close to the drive frame 22, and the bottom of this end abuts against the top of the end of the drive frame 22 away from the outer door handle 3. In the embodiment of the present application, a recessed groove is also provided at the bottom of the switch frame 44 near the end of the drive frame 22, so that the switch frame 44 and the drive frame 22 are fully abutted.

[0053] Reference Figure 3 and Figure 5In the initial state, that is, when the end of the driving frame 22 is away from the exterior door handle 3 and tilted upward, the upper locking frame 211 and the lower locking frame 212 are both inserted into the door frame or wall, and the pushing frame 42 is located at the end of its sliding path away from the door body. When the user pushes the pushing frame 42 to slide into the fixed frame 41, the inner side wall of the pushing frame 42 continuously abuts against the end of the intermediate frame 431, causing the intermediate frame 431 to rotate. The other end of the intermediate frame 431, through the abutment, continuously pushes the bottom end of the switch frame 44 to rotate away from the driving frame 22, thereby causing the top end of the switch frame 44 to push the end of the driving frame 22 away from the exterior door handle 3 to rotate downward, thereby driving the driving frame 22.

[0054] Reference Figure 5 A reset assembly 6 is further disposed within the opening of the fixing frame 41. In the embodiment of the present application, there are two reset assemblies 6, which are distributed along the length of the fixing frame 41. Each reset assembly 6 includes a reset frame 61 and a reset torsion spring 62. Each reset frame 61 is rotationally connected to the fixing frame 41 via a pin.

[0055] Reference Figure 5 One end of each reset frame 61 extends toward the push frame 42 and abuts against the inner side wall of the push frame 42. Each reset torsion spring 62 is sleeved on the corresponding reset frame 61, with one end abutting against the corresponding reset frame 61 and the other end abutting against the inner wall of the fixed frame 41 to reset the reset frame 61. Resetting the reset frame 61, thereby resetting the push frame 42, is achieved.

[0056] Reference Figure 6 and Figure 7 The top of the upper locking frame 211 is further provided with a retaining groove 2111 and a reinforcement groove 2112. The retaining groove 2111 is an annular groove, and guide surfaces are provided on both the inner top and inner bottom walls of the retaining groove 2111. In the embodiment of the present application, there are two reinforcement grooves 2112, located on opposite sides of the upper locking frame 211. Each reinforcement groove 2112 has a guide surface provided on both the inner top and inner bottom walls.

[0057] Reference Figure 2 、 Figure 6 and Figure 7 The upper locking frame 211 is also provided with a fixing mechanism 7, which includes an extension frame 71, a retaining assembly 72, and a reinforcement assembly 73. The extension frame 71 is fixed to the door body by bolts. The top end of the upper locking frame 211 passes upward through the extension frame 71 and is slidably connected to the extension frame 71. The upper locking frame 211 slides vertically relative to the extension frame 71.

[0058] Reference Figure 6The retaining assembly 72 includes a retaining frame 721 and a resetting member 722. The retaining frame 721 is located within the expansion frame 71, and the bottom end of the retaining frame 721 is rotatably connected to the expansion frame 71 via a pin. The top end of the upper locking frame 211 passes through the retaining frame 721. A retaining portion 7211 extends from the retaining frame 721. The retaining portion 7211 extends obliquely upward toward the upper locking frame 211, abuts against the side wall of the upper locking frame 211, and is located below the retaining slot 2111.

[0059] Reference Figure 2 and Figure 6 The top of the retaining frame 721 is located on a side away from the exterior door handle 3. An unlocking portion 7212 extends away from the exterior door handle 3 and extends outwardly to the door body. In this embodiment, the reset member 722 is configured as a torsion spring that is sleeved onto the retaining frame 721. The middle portion of the torsion spring abuts against the retaining frame 721, while both ends abut against the additional frame 71, thereby resetting the retaining frame 721.

[0060] Reference Figure 6 In the initial state, that is, when the upper locking frame 211 is inserted into the door frame or wall, the retaining frame 721 is located below the retaining groove 2111, and the reset member 722 is in a torsionally deformed state. When the upper locking frame 211 slides downward and completely separates from the door frame or wall, the retaining groove 2111 corresponds to the retaining portion 7211 on the retaining frame 721. At this time, the retaining frame 721 rotates under the elastic force of the reset member 722, so that the retaining portion 7211 is inserted into the retaining groove 2111 and abuts against the inner bottom wall of the retaining groove 2111, thereby preventing the upper locking frame 211 from sliding upward, so that the upper locking frame 211 remains unlocked, and the driving frame 22 and the lower locking frame 212 also remain unlocked.

[0061] Reference Figure 6 When it is necessary to restore the upper locking frame 211 to its initial state, the unlocking portion 7212 is pushed to rotate the retaining frame 721, thereby disengaging the retaining portion 7211 from the retaining groove 2111 and releasing the unlocking of the upper locking frame 211. At this time, the upper locking frame 211 is driven by the driving frame 22 to return to its initial position.

[0062] Reference Figure 7In the embodiment of the present application, the number of reinforcement components 73 is set to two, and they correspond one to one with the reinforcement slots 2112. Each reinforcement component 73 includes a reinforcement frame 731, a reset spring 732, and a limit frame 733. The bottom end of each reset spring 732 is in contact with the bottom end of the corresponding limit frame 733, and both are fixedly connected to the additional frame 71 via the same bolt. The top end of each reset spring 732 and the limit frame 733 are both extended upward, and the top end of the limit frame 733 is higher than the top end of the reset spring 732 to limit the reset spring 732.

[0063] Reference Figure 7 The top end of each reset spring piece 732 is sleeved on one end of the corresponding reinforcement frame 731, and the other end of each reinforcement frame 731 extends toward the direction close to the corresponding reinforcement groove 2112, and passes through the additional frame 71, and is slidably connected to the additional frame 71, and extends into the corresponding reinforcement groove 2112, thereby hindering the downward displacement of the upper locking frame 211.

[0064] The implementation principle of the internal and external height difference emergency escape fire lock of the embodiment of the present application is as follows: when it is necessary to open the door body from outside the door body, the handle portion of the external door handle 3 is rotated. At this time, the handle portion of the external door handle 3 drives the sleeve frame 31 to rotate together, thereby causing the bottom end of the driving frame 51 to displace and pull one end of the middle rope 52 to move upward, thereby causing the middle rope 52 to pass through the hook frame 53, driving the end of the driving frame 22 close to the external door handle 3 to rotate upward, thereby driving the driving frame 22. At this time, the driving frame 22 drives the upper locking frame 211 and the lower locking frame 212 to slide toward each other through the upper connecting frame 231 and the lower connecting frame 232, thereby causing the upper locking frame 211 and the lower locking frame 212 to separate from the door frame or wall, thereby unlocking the door body installed with the door lock of the present application.

[0065] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An emergency escape fire lock with a height difference between inside and outside, comprising a mounting frame (1), a locking mechanism (2), an outer door handle (3) and an inner door switch (4), wherein the locking mechanism (2) includes a lock frame (21), and is characterized in that: The locking mechanism (2) further comprises a driving frame (22) and a driving assembly (23), wherein the driving frame (22) is rotatably connected to the mounting frame (1), and the driving frame (22) drives the lock frame (21) to slide through the driving assembly (23), and the outer door handle (3) is located above the driving frame (22) and is provided with a lifting frame (5), the bottom end of the lifting frame (5) extends downward and is connected to the driving frame (22), and the outer door handle (3) drives the driving frame (22) to rotate by controlling the movement of the lifting frame (5).

2. The fireproof lock with an internal and external height difference according to claim 1, characterized in that: The lock frame (21) includes an upper locking frame (211) and a lower locking frame (212), and the upper locking frame (211) and the lower locking frame (212) are both slidably connected to the mounting frame (1). The top end of the upper locking frame (211) extends upward and is used to be inserted into a door frame or a wall. The bottom end of the lower locking frame (212) extends downward and is used to be inserted into a door frame or a wall. The driving component (23) is used to drive the upper locking frame (211) and the lower locking frame (212) to slide in opposite directions together.

3. The fireproof lock with a height difference between inside and outside according to claim 2, characterized in that: A retaining groove (2111) is provided on the side wall of the upper locking frame (211), and a fixing mechanism (7) is also provided on the top of the upper locking frame (211), wherein the fixing mechanism (7) comprises an additional frame (71) and a retaining assembly (72), wherein the additional frame (71) is used for being installed on the door body, and the retaining assembly (72) comprises a retaining frame (721) and a reset member (722), wherein one end of the retaining frame (721) is rotatably connected to the additional frame (71), and a retaining portion (7211) is provided on the retaining frame (721), wherein the retaining portion (7211) is used for being inserted into the retaining groove (2111), and the reset member (722) is used for resetting the retaining frame (721).

4. The fireproof lock with an internal and external height difference according to claim 3, characterized in that: A reinforcement groove (2112) is provided on the side wall of the upper locking frame (211), and the fixing mechanism (7) further comprises a reinforcement assembly (73), wherein the reinforcement assembly (73) comprises a reinforcement frame (731) and a reset spring piece (732), one end of the reset spring piece (732) is connected to the additional frame (71), and the other end is connected to one end of the reinforcement frame (731), and the other end of the reinforcement frame (731) is inserted into the reinforcement groove (2112).

5. The fireproof lock with an internal and external height difference according to claim 2, characterized in that: The driving assembly (23) comprises an upper connecting frame (231) and a lower connecting frame (232), one end of the upper connecting frame (231) is rotatably connected to one end of the driving frame (22), and the other end is rotatably connected to the bottom end of the upper locking frame (211), one end of the lower connecting frame (232) is rotatably connected to the other end of the driving frame (22), and the other end is rotatably connected to the top end of the lower locking frame (212), and the middle part of the driving frame (22) is rotatably connected to the mounting frame (1).

6. The fireproof lock with an internal and external height difference according to claim 1, characterized in that: The inner door switch (4) comprises a fixed frame (41), a pushing frame (42), a switch member (43) and a switch frame (44); the fixed frame (41) is used to be installed on the inner side of the door body; the pushing frame (42) is slidably connected to the fixed frame (41), and one end of the pushing frame (42) extends out of the fixed frame (41); the switch frame (44) is rotatably connected to the mounting frame (1); one end of the switch frame (44) abuts against one end of the driving frame (22); the pushing frame (42) drives the switch frame (44) to rotate through the switch member (43), and pushes the driving frame (22) to rotate by abutting.

7. The fireproof lock with an internal and external height difference according to claim 6, characterized in that: The switch member (43) includes an intermediate frame (431), the intermediate frame (431) is located between the fixed frame (41) and the pushing frame (42), and rotates with the fixed frame (41), one end of the intermediate frame (431) abuts against the pushing frame (42), and the other end of the intermediate frame (431) extends to a side of the switch frame (44) close to the driving frame (22), and abuts against an end of the switch frame (44) away from the driving frame (22).

8. The fireproof lock with an internal and external height difference for emergency escape according to claim 6, characterized in that: The fixed frame (41) is further provided with a reset assembly (6), the reset assembly (6) comprising a reset frame (61) and a reset torsion spring (62), the reset frame (61) being located between the fixed frame (41) and the pushing frame (42) and being rotatably connected to the fixed frame (41), one end of the reset frame (61) being in contact with the pushing frame (42), and the reset torsion spring (62) being used for resetting the reset frame (61).

9. The fireproof lock with an internal and external height difference for emergency escape according to claim 1, characterized in that: The lifting frame (5) includes a driving frame (51), an intermediate rope (52) and a hook frame (53), one end of the driving frame (51) is installed on the outer door handle (3), and the other end of the driving frame (51) extends to the bottom of the rotation axis of the outer door handle (3), one end of the intermediate rope (52) is connected to the bottom end of the driving frame (51), and the other end extends downward and is connected to the hook frame (53), and the hook frame (53) is sleeved on one end of the driving frame (22) close to the outer door handle (3).

10. The fireproof lock with an internal and external height difference for emergency escape according to claim 1, characterized in that: The driving frame (22) is further provided with an elastic member (24), and the elastic member (24) is used for resetting the driving frame (22) through its own elastic force.

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