CN117948004A - Switching device for delayed unlocking function - Google Patents

Abstract

A switching device with delayed unlocking function is arranged on a flat push escape door lock device with a flat push rod and comprises a switching device base, a toggle swing arm, a linkage rod, a detection assembly, a timing control assembly and an electromagnetic traction assembly. The toggle swing arm is arranged on the base of the switching device and comprises a blocking bolt, the blocking bolt is switchably kept at an avoiding position in a delayed unlocking function closing state, and the blocking bolt is preset at a blocking position in a delayed unlocking function starting state. The timing control assembly starts timing when the detecting assembly detects that the flat push rod is pushed, and enables the electromagnetic traction assembly to drag the toggle swing arm and enable the stop bolt to move from the blocking position to the avoiding position after the timing reaches a preset delay time. The stop bolt is located at the avoiding position, and the flat push rod is avoided so as to allow the flat push rod to be pushed continuously to complete unlocking.

Description

Switching device for delayed unlocking function

Technical Field

The invention relates to a switching device, in particular to a switching device with a delayed unlocking function which is arranged on a horizontal push type escape door lock device and can determine whether to start the delayed unlocking function.

Background technique

In order to allow people to quickly escape from a building in the event of an emergency, an escape door and an escape door lock are usually installed at the escape exit. Due to the need for escape, it is often necessary to allow people inside the room to quickly unlock the door and escape. However, for certain buildings, due to certain regulatory needs, people inside the building must meet certain conditions before they can leave. For example, when the building is a business space for a shopping mall, people inside the building must complete the checkout before they can leave. If some unscrupulous consumers take the goods and leave through the escape door without paying, it will cause unreasonable property losses to the mall operators.

In the prior art, in order to prevent the occurrence of the above situation and take into account the need for escape, countries have formulated corresponding fire regulations to regulate the allowed delayed unlocking time. In practice, according to the provisions of fire regulations in different countries, the allowed delayed unlocking time is usually regulated to between 15 and 30 seconds. At the same time, it is usually used in conjunction with an alarm, so that shopping mall operators have extra time to respond and send personnel to deal with it immediately before the door lock is unlocked.

However, the mechanisms for driving the unlocking and discharging in the delayed unlocking and sliding type escape door lock devices currently available on the market are not the same. That is, different delayed unlocking and sliding type escape doors must be installed with different delayed unlocking and sliding type escape doors. In this way, the delayed unlocking function cannot be realized without changing the original unlocking and discharging related mechanisms, thereby increasing the preparation and installation costs of the delayed unlocking and sliding type escape door components.

Summary of the invention

In view of the fact that in the prior art, different delayed unlocking function components must be installed for different horizontal push type escape door lock devices, and therefore there is a common problem of increased preparation and installation costs of delayed unlocking function components. Therefore, the main purpose of the present invention is to provide a switching device for delayed unlocking function, which is to arrange the blocking mechanism of the delayed unlocking function away from the mechanism related to the unlocking and unlocking in the door lock base of the horizontal push type escape door lock device, and to avoid the original internal mechanism of the horizontal push type escape door lock device, that is, when the horizontal push rod of the horizontal push type escape door lock device is pressed down or lifted up, the original internal mechanism will not have contact movement with the blocking mechanism of the delayed unlocking function, thereby solving the above-mentioned problem without changing the original unlocking and unlocking related mechanism.

On the basis of the above, the necessary technical means adopted by the present invention to solve the problems of the prior art is to provide a switching device for a delayed unlocking function (hereinafter referred to as a "function switching device"), which is arranged on a push-type escape door lock device. The push-type escape door lock device is arranged on an escape door panel. The push-type escape door lock device includes a door lock base and a push rod arranged on the door lock base. A groove is provided on the side of the push rod facing the door lock base. The switching device for the delayed unlocking function includes a switching device base, a toggle swing arm, a linkage rod, a detection component, a timing control component and an electromagnetic traction component.

The switching device base is fixed to the door lock base. The toggle swing arm is pivotally connected to the switching device base, and includes a stop bolt, which moves between a blocking position and an escape position when driven, and is switchably located at the escape position in a delayed unlocking function off state, and preset to the blocking position in a delayed unlocking function on state. The linkage rod is pivotally connected to the door lock base, and is linked to the push rod.

The detection component is fixed to the switching device base and is arranged corresponding to the linkage rod. When the delayed unlocking function is activated, when the push rod is pushed and the linkage rod is detected to be changed from contacting the detection component to being separated from the detection component, an unlocking trigger signal is issued. The timing control component is electrically connected to the detection component, so as to issue a state switching signal after receiving the unlocking trigger signal and a preset delay time. The electromagnetic traction component is arranged on the switching device base, and after receiving the state switching signal, it pulls the swing arm to move the blocking bolt from the blocking position to the avoidance position.

Among them, when the stop bolt is in the blocking position, it blocks the push rod to prevent the push rod from being pushed further and prohibit unlocking. When the stop bolt is in the avoidance position, the stop bolt avoids the push rod corresponding to the groove, thereby allowing the push rod to be pushed further and complete unlocking.

In the subsidiary technical means derived from the above necessary technical means, preferably, the swing arm can further include a swing arm body and a stop bolt plate. The swing arm body is pivotally connected to the switching device base, and the stop bolt is plugged and fixed to the swing arm body. The stop bolt plate extends from the swing arm body and is fixed to the swing arm body, and a travel limiting groove is provided to limit the movement of the electromagnetic traction component.

The function switching device may further include a delayed unlocking function switch lock and a switch position detection module. The delayed unlocking function switch lock is arranged on the door lock base, and is driven by a key lock to move between a function start position and a function off position. The switch position detection module is arranged on the door lock base, and is electrically connected to the timing type control component, so that when the delayed unlocking function switch lock is detected to be in the function start position, a function start signal is transmitted to the timing type control component, so that the timing type control component enters a delayed unlocking function start state, and when the delayed unlocking function switch lock is detected to be in the function off position, a function off signal is transmitted to the timing type control component, so that the timing type control component enters a delayed unlocking function off state.

The switch position detection module may further include a first micro switch sensor. The first micro switch sensor is in contact with the delayed unlocking function switch lock when the delayed unlocking function switch lock is in the function activation position, thereby generating and transmitting a function activation signal; and is separated from the delayed unlocking function switch lock when the delayed unlocking function switch lock is in the function shutdown position, thereby generating and transmitting a function shutdown signal.

The function switching device may further include a lever, which is disposed on the door lock base and driven by the delayed unlocking function switch lock, and touches the first micro switch sensor when the delayed unlocking function switch lock is in the function activation position, so that the first micro switch sensor detects that the delayed unlocking function switch lock is in the function activation position.

The timing control component may include a circuit board, a controller and a timer. The circuit board is arranged on the door lock base. The controller is arranged on the circuit board and is electrically connected to the detection component, and is used to generate a timing signal after receiving a trigger unlocking signal in the delayed unlocking function activation state. The timer is electrically connected to the controller, and is used to start timing after receiving a timing signal in the delayed unlocking function activation state, and send an end timing signal after the timing reaches a preset delay time, so as to cause the controller to send a state switching signal.

The function switching device may further include an alarm. The alarm is electrically connected to the controller. When the controller receives a trigger unlock signal in the delayed unlock function activation state, it generates an alarm signal and transmits the alarm signal to the alarm so that the alarm sounds an alarm. The detection component may include a second micro switch sensor. The second micro switch sensor is disposed on the switching device base and contacts the linkage rod. When the linkage rod is linked by the push rod in the delayed unlock function activation state and the second micro switch sensor is separated from the linkage rod, a trigger unlock signal is issued.

In summary, in the switching device for the delayed unlocking function provided by the present invention, a detection component arranged in the door lock base is used to sense that the push rod is pushed, thereby starting the delayed unlocking function, and after reaching the preset delay time, the traction block moves to the avoidance position, so that the push rod continues to move along the downward driving stroke to delay the unlocking.

In addition, since all components related to the delayed unlocking means (including the toggle swing arm, the detection component, the timing control component and the electromagnetic traction component) are all away from the mechanism related to the unlocking and are arranged in the door lock base of the horizontal push type escape door, and avoid the original internal mechanism of the horizontal push type escape door lock device, that is to say, when the horizontal push rod of the horizontal push type escape door lock device is pressed down or lifted up, the original internal mechanism will not have contact movement with the blocking mechanism of the delayed unlocking function.

Therefore, the delayed unlocking function can be realized without changing the original unlocking and unlocking related mechanisms, thereby achieving the effect of reducing the preparation and installation costs of the sensing and delayed unlocking function components.

The specific embodiments of the present invention will be further described with reference to the following embodiments and drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of a switching device for a delayed unlocking function according to a preferred embodiment of the present invention being arranged on a horizontal push type escape door lock device;

FIG2 is a schematic diagram of partial parts of a switching device for delayed unlocking function according to a preferred embodiment of the present invention after being decomposed;

Fig. 3 is a cross-sectional view of a switching device for delayed unlocking function according to a preferred embodiment of the present invention along the A-A viewing angle;

Fig. 4 is a cross-sectional view of a switching device for delayed unlocking function according to a preferred embodiment of the present invention taken along the B-B viewing angle;

FIG5 is a cross-sectional view of a switching device for delayed unlocking function along the C-C perspective of a preferred embodiment of the present invention;

6 is a functional block diagram of the main internal circuits of the switching device for delayed unlocking function according to a preferred embodiment of the present invention;

7 is a schematic diagram of the position relationship of local components of the switching device for the delayed unlocking function of a preferred embodiment of the present invention in a (delayed unlocking) function activation state;

8 is a schematic diagram of the position relationship of local components of the flat push rod of the switching device for delayed unlocking function according to a preferred embodiment of the present invention after being pressed down by an operator;

FIG9 is a cross-sectional view of a switching device for a delayed unlocking function according to a preferred embodiment of the present invention taken along the D-D viewing angle;

10 is a schematic diagram of the position relationship of local components of the switching device for delayed unlocking function according to a preferred embodiment of the present invention when the stop bolt moves to the avoidance position after the timing reaches a preset delay time;

11 is a schematic diagram of a switching device for delayed unlocking function according to a preferred embodiment of the present invention, which is assembled in a horizontal push type escape door lock device and is unlocked by operation;

FIG12 is a cross-sectional view of the switching device of the delayed unlocking function in FIG11 along the E-E perspective;

Fig. 13 is a cross-sectional view of the switching device of the delayed unlocking function in Fig. 11 along the F-F perspective.

Detailed ways

Since the switching device of the delayed unlocking function provided by the present invention can be widely used in different types of horizontal push type escape door lock devices, its combination and variation implementation methods are too numerous to mention. Here, only one preferred embodiment is listed for specific description.

Please refer to Figures 1 to 6, Figure 1 is a schematic diagram of a switching device for a delayed unlocking function according to a preferred embodiment of the present invention being arranged on a horizontal push type escape door lock device; Figure 2 is a schematic diagram of a switching device for a delayed unlocking function according to a preferred embodiment of the present invention after partial parts are decomposed; Figure 3 is a cross-sectional view of the switching device for a delayed unlocking function according to a preferred embodiment of the present invention along the A-A perspective; Figure 4 is a cross-sectional view of the switching device for a delayed unlocking function according to a preferred embodiment of the present invention along the B-B perspective; Figure 5 is a cross-sectional view of the switching device for a delayed unlocking function according to a preferred embodiment of the present invention along the C-C perspective; Figure 6 is a block diagram of the main internal circuit functions of the switching device for a delayed unlocking function according to a preferred embodiment of the present invention.

As shown in FIGS. 1 to 6 , a delayed unlocking function switching device (hereinafter referred to as “function switching device”) 100 is provided on a push-type escape door lock device 200, which is provided on an escape door panel 300. The push-type escape door lock device 200 includes a door lock base 201, a push rod 202 provided on the door lock base 201, and at least one locking element (only one locking element 203 in this embodiment). A groove G is provided on the side of the push rod 202 facing the door lock base 201.

The push rod 202 can be used to drive the unlocking drive mechanism, thereby controlling the extension or retraction of the locking element 203. Since the unlocking drive mechanism is a commonly used drive mechanism (designed according to various types of locks, usually composed of rocker arms, linkage rods, return elements and other parts), it is not a unique structure of the present invention, and will not be described in detail in this embodiment.

The number of the locking elements 203 can be one, two or three according to different types of locks such as single-locking point, double-locking point and triple-locking point, and the locking element 203 can be a tongue, a latch or a crash bar according to different types of locks. The escape door panel 300 includes a locking side 301 adjacent to at least one lock slot (there is only one lock slot LG in this embodiment). The lock slot LG is opened in a door frame lock seat 400, and the door frame lock seat is fixed to an indoor side surface 501 of a door frame 500. The number of the lock slots corresponds to the number of the locking elements and is one, two or three.

The function switching device 100 includes a switching device base 1, a toggle swing arm 2, a linkage rod 3, a detection component 4, a timing control component 5, an electromagnetic traction component 6, a delayed unlocking function switch lock 7, a toggle lever 8, a switch position detection module 9 and an alarm 10.

The switching device base 1 is fixed to the door lock base 201. The swing arm 2 is pivotally connected to the switching device base 1, and includes a swing arm body 21, a bolt stop plate 22 and a bolt stop 23. The swing arm body 21 is pivotally connected to the switching device base 1. The bolt stop plate 22 extends from the swing arm body 21 and is fixed to the swing arm body 21, and a stroke limiting groove SG is provided to limit the movement of the electromagnetic traction component 6, so that the bolt stop 23 is limited to move between a blocking position SP and an avoidance position AP (as shown in Figure 10). The bolt stop 23 is plugged and fixed to the swing arm body 21, and in a locked state, the bolt stop 23 is located at the blocking position SP. Preferably, the swing arm body 21, the bolt stop plate 22 and the bolt stop 23 can be an integral component formed by forging or casting.

The linkage rod 3 is pivotally connected to the door lock base 201, and is linked to the push rod 202 through at least one linkage member (two linkage members are included in this embodiment, and only one linkage member 31 close to the blocking mechanism is marked). The two ends of the linkage member 31 are respectively pivotally connected to the linkage rod 3 and the push rod 202, so as to drive the linkage rod 3 to move when the push rod 202 is pressed down by an operator. In the locked state, the push rod 202 and the linkage member 31 are both located at a locked position LP, and the unlocking drive mechanism can make the locking element 203 snap into the lock slot LG to maintain the lock.

The detection component 4 is fixed to the switching device base 1 and is arranged corresponding to the linkage rod 3, and may include a second micro switch sensor 41. The second micro switch sensor 41 may be one of a metal contact type micro switch, a capacitive sensing type micro switch, an inductive sensing type micro switch or a piezoresistive sensing type micro switch, and is used to sense whether the second micro switch sensor 41 is separated from the flat push rod 202, or to sense whether the second micro switch sensor 41 changes the pressing pressure between the flat push rod 202. The structure and working principle of the micro switch are not original to the present invention, and will not be described in detail in this embodiment. The timing control component 5 is electrically connected to the detection component 4, and may include a circuit board 51, a controller 52 and a timer 53. The circuit board 51 is arranged on the door lock base 201. The controller 52 is arranged on the circuit board 51 and is electrically connected to the detection component 4. The timer 53 is electrically connected to the controller 52.

The electromagnetic traction component 6 is arranged on the switching device base 1, and may include an electromagnet component or an electromagnetic valve component (an electromagnet component in this embodiment), which is used to pull the stop bolt plate 22 through an electromagnetic force, thereby pulling the stop bolt 23 to move between the blocking position SP and the avoidance position AP in a linked manner. The structure and working principle of the electromagnet or the electromagnetic valve are not original to this creation and will not be repeated in this embodiment.

The delayed unlocking function switch lock 7 is arranged on the door lock base 201, has a key hole KH, and has a protrusion 71. The lever 8 is arranged on the door lock base 201, and has a concave edge N for the protrusion 71 to be inserted.

The switch position detection module 9 is disposed on the door lock base 201, electrically connected to the controller 52, and may include a first micro switch sensor 91. When the protrusion 71 of the delayed unlocking function switch lock 7 is located at a function off position FDP (as shown in FIG. 5 ), the lever 8 does not touch the second micro switch sensor 91, and at this time, the controller 52 of the function switching device 100 is in a (delayed unlocking) function off state.

The first micro switch sensor 91 can be a metal contact type micro switch, a capacitance sensing type micro switch, an inductance sensing type micro switch or a piezoresistive sensing type micro switch, and is used to sense whether the first micro switch sensor 91 is in contact with the lever 8, or to sense whether the first micro switch sensor 91 changes the pressing pressure between the lever 8 and the first micro switch sensor 91. The structure and working principle of the micro switch are not original to the present invention, and will not be described in detail in this embodiment. The alarm 10 is electrically connected to the controller 52.

Please continue to refer to Figure 7, which is a schematic diagram of the position relationship of the local components of the switching device of the delayed unlocking function in the preferred embodiment of the present invention when the (delayed unlocking) function is activated. At the same time, please refer to Figures 1 and 2 together.

As shown in FIG7 , after a manager inserts a key 600 into the keyhole KH and drives the delayed unlocking function switch lock 7 to rotate, the protrusion 71 of the delayed unlocking function switch lock 7 will switch from the function closing position FDP shown in FIG4 to a function starting position FEP. At this time, the protrusion 71 can drive the lever 8 to rotate and touch the first micro switch sensor 91, so that the switch position detection module 9 detects that the protrusion 71 of the delayed unlocking function switch lock 7 is located at the function starting position FEP, and transmits a function starting signal S1 to the controller 52, so that the controller 52 of the function switching device 100 enters a (delayed unlocking) function starting state.

Please continue to refer to Figures 8 to 13. Figure 8 is a schematic diagram of the position relationship of local components of the switching device for delayed unlocking function of the preferred embodiment of the present invention after the horizontal push rod is pressed down by the operator; Figure 9 is a cross-sectional view of the switching device for delayed unlocking function of the preferred embodiment of the present invention along the D-D perspective; Figure 10 is a schematic diagram of the position relationship of local components of the switching device for delayed unlocking function of the preferred embodiment of the present invention after the timing reaches the preset delay time and the stop bolt moves to the avoidance position; Figure 11 is a schematic diagram of the switching device for delayed unlocking function of the preferred embodiment of the present invention assembled in the horizontal push type escape door lock device and unlocked by operation; Figure 12 is a cross-sectional view of the switching device for delayed unlocking function in Figure 11 along the E-E perspective; Figure 13 is a cross-sectional view of the switching device for delayed unlocking function in Figure 11 along the F-F perspective. At the same time, please refer to Figures 1 to 6.

When the controller 52 is in the (delayed unlocking) function activation state and an operator presses down on the push rod 202, the push rod 202 disengages from the locking position LP (as shown in FIG. 4 ) and sequentially separates the linkage rod 3 from the second microswitch sensor 41 . At this time, the stop bolt 23 is in the blocking position SP, preventing the push rod 202 from continuing to move along the downward driving stroke DP to an unlocking position ULP (both indicated in FIG. 12 ) and prohibiting unlocking.

The administrator can set a preset delay time for the timer 53 according to the fire regulations of different countries, which is usually between 15 and 30 seconds. When the push rod 202 is out of the locked position LP, the linkage rod 3 is linked to separate from the second micro switch sensor 41 or change the pressing pressure between the linkage rod 3 and the second micro switch sensor 41. At this time, the second micro switch sensor 41 can detect that the push rod 202 is out of the locked position LP, and transmit a trigger unlocking signal S2 to the controller 52, so that the controller 53 transmits a timing signal S3 and an alarm signal S4.

When the timer 53 receives the timing signal S3, it starts timing, and after the timing reaches the preset delay time, it transmits an end timing signal S5 back to the controller 52, so that the controller 52 generates a state switching signal S6 and transmits it to the electromagnetic traction component 6. When the electromagnetic traction component 6 receives the state switching signal S6, it pulls the stopper plate 22 to move the stopper 23 from the blocking position SP to the avoidance position AP along a traction direction TD (indicated in FIG. 10). The avoidance position AP corresponds to the groove G and avoids the push rod 202, so as to allow the push rod 202 to continue to move along the downward driving stroke DP toward the unlocking position ULP, and at the unlocking position ULP, it drives the unlocking and unlocking driving mechanism to disengage the locking element 203 from the lock groove LG to unlock.

When the alarm 10 receives the alarm signal S4, an alarm is sounded. After the alarm 10 sounds an alarm, if the alarm is to be turned off, the key 500 can be inserted into the keyhole KH, and the delayed unlocking function switch lock 7 can be driven to rotate, so that the projection 71 of the delayed unlocking function switch lock 7 can be switched from the function start position FEP to the function off position FDP again. At this time, the projection 71 can drive the lever 8 to rotate without contacting the first micro switch sensor 91, so that the first micro switch sensor 91 detects that the projection 71 of the delayed unlocking function switch lock 7 is in the function off position FDP, and transmits a function off signal S7 to the controller 52, so that the controller 52 enters the (delayed unlocking) function off state again, and transmits an alarm cancel signal S8 to the alarm 10, so that the alarm 10 stops sounding the alarm.

In summary, in the function switching device 100 provided by the present invention, the detection component 4 arranged in the door lock base 201 senses that the linkage rod 3 is driven by the push rod 202 and detects that the push rod 202 is out of the locked position LP, thereby starting the delayed unlocking function, and after the preset delay time is reached, the electromagnetic traction component 6 pulls the stop bolt 23 to move to the avoidance position AP, thereby allowing the push rod 202 to continue to move along the downward driving stroke DP to delay unlocking.

In addition, since the components related to the delayed unlocking means (including the swing arm 2, the detection component 4, the timing control component 5 and the electromagnetic traction component 6) are all away from the mechanism related to the unlocking and are arranged in the door lock base, and avoid the original internal mechanism of the escape door lock device, that is, when the horizontal push rod 202 of the horizontal push type escape door lock device 200 is pressed down or lifted up, the original internal mechanism will not have contact movement with the blocking mechanism of the delayed unlocking function. Therefore, the delayed unlocking function can be realized without changing the original unlocking and unlocking related mechanism, thereby achieving the effect of reducing the preparation and installation costs of the sensing and delayed unlocking function components.

The above are only embodiments of the present invention, which are intended to more clearly describe the features and spirit of the present invention, and are not intended to limit the scope of the present invention by the preferred specific embodiments disclosed above. On the contrary, the purpose is to cover various changes and arrangements with equivalents within the scope of the patent scope that the present invention intends to apply for.

Claims (8)

1. A switching device for delayed unlocking function is provided on a horizontal push type escape door lock device, the horizontal push type escape door lock device is provided on an escape door panel, characterized in that the horizontal push type escape door lock device comprises a door lock base and a horizontal push rod provided on the door lock base, a groove is provided on a side of the horizontal push rod facing the door lock base, and the switching device for delayed unlocking function comprises: A switching device base is fixed to the door lock base; A toggle swing arm is pivotally connected to the switching device base, including a stop bolt, which is driven to move the stop bolt between a blocking position and a evasion position, and is switchably located at the evasion position when a delayed unlocking function is turned off, and is preset at the blocking position when a delayed unlocking function is turned on; A linkage rod, pivotally connected to the door lock base and movably connected to the push rod; A detection component is fixed to the switching device base and is disposed corresponding to the linkage rod, and is used to send an unlocking trigger signal when the linkage rod is detected to be changed from being in contact with the detection component to being out of the detection component due to the push rod being pushed when the delayed unlocking function is activated; a timing control component, which is electrically connected to the detection component, so as to issue a state switching signal after receiving the unlocking trigger signal and a preset delay time; and An electromagnetic traction component is disposed on the switching device base, and after receiving the state switching signal, pulls the toggle swing arm to move the blocking bolt from the blocking position to the avoidance position; Wherein, when the stop bolt is located at the blocking position, the stop bolt blocks the push rod to prevent the push rod from being further pushed and prohibiting unlocking. When the stop bolt is located at the avoidance position, the stop bolt avoids the push rod corresponding to the groove, thereby allowing the push rod to be further pushed to complete unlocking. 2. The switching device for delayed unlocking function according to claim 1, characterized in that the toggle swing arm further comprises: A swing arm body is pivotally connected to the switching device base, and the stop bolt is plugged and fixed to the swing arm body; and A stopper plate extends from the swing arm body and is fixed to the swing arm body, and has a stroke limiting groove to limit the movement of the electromagnetic traction component. 3. The switching device for delayed unlocking function according to claim 1, characterized in that it also comprises: A delayed unlocking function switch lock is disposed on the door lock base and is driven by a key lock to move between a function start position and a function close position; and A switch position detection module is arranged on the door lock base and electrically connected to the timing control component, so that when it is detected that the delayed unlocking function switch lock is located in the function start position, a function start signal is transmitted to the timing control component, so that the timing control component enters the delayed unlocking function start state; and when it is detected that the delayed unlocking function switch lock is located in the function off position, a function off signal is transmitted to the timing control component, so that the timing control component enters a delayed unlocking function off state. 4. The switching device of the delayed unlocking function according to claim 3 is characterized in that the switch position detection module also includes a first micro switch sensor, and the first micro switch sensor is in contact with the delayed unlocking function switch lock when the delayed unlocking function switch lock is located at the function start position, thereby generating and transmitting the function start signal; and is separated from the delayed unlocking function switch lock when the delayed unlocking function switch lock is located at the function off position, thereby generating and transmitting the function off signal. 5. The switching device for the delayed unlocking function according to claim 4 is characterized in that it also includes a lever, which is arranged on the door lock base and is driven by the delayed unlocking function switch lock, and touches the first microswitch sensor when the delayed unlocking function switch lock is located at the function activation position, so that the first microswitch sensor detects that the delayed unlocking function switch lock is located at the function activation position. 6. The switching device for delayed unlocking function according to claim 1, characterized in that the timing control component comprises: A circuit board is arranged on the door lock base; a controller, which is disposed on the circuit board and electrically connected to the detection component, and is used to generate a timing signal after receiving the trigger unlocking signal when the delayed unlocking function is activated; and A timer is electrically connected to the controller, and is used to start timing after receiving the timing signal when the delayed unlocking function is activated, and to send an end timing signal after the timing reaches the preset delay time, so that the controller sends the state switching signal. 7. The switching device of the delayed unlocking function according to claim 6 is characterized in that it also includes an alarm, which is electrically connected to the controller. After the controller receives the trigger unlocking signal when the delayed unlocking function is activated, it generates an alarm signal and transmits the alarm signal to the alarm so that the alarm issues an alarm. 8. The switching device with delayed unlocking function according to claim 1 is characterized in that the detection component includes a second micro switch sensor, and the second micro switch sensor is arranged on the base of the switching device, contacts the connecting rod, and sends out the trigger unlocking signal when the connecting rod is driven by the push rod in a linkage manner when the delayed unlocking function is activated, so that the second micro switch sensor is separated from the connecting rod.