CN110952840B

CN110952840B - Mechanical electromagnetic lock for shielded door

Info

Publication number: CN110952840B
Application number: CN201911416702.7A
Authority: CN
Inventors: 林湛; 单超
Original assignee: Changzhou Varyag Electric Co ltd
Current assignee: Changzhou Varyag Electric Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-12-25
Anticipated expiration: 2039-12-31
Also published as: CN110952840A

Abstract

The invention discloses a mechanical electromagnetic lock for a shielding door, which relates to the technical field of electromagnetic locks and comprises a mechanical lock assembly, an electromagnetic unlocking assembly and a manual unlocking assembly, wherein the mechanical lock assembly comprises a fixed plate, a supporting frame and a locking piece, the locking piece comprises a first lock disc, a first rotating shaft and a second lock disc which are sequentially connected, the first lock disc is arranged towards the shielding door, the first rotating shaft is rotatably connected with the fixed plate, the second lock disc is positioned between the fixed plate and the supporting frame, a first lock hook groove is formed in the circumferential side wall of the first lock disc, and a locking rod is clamped into the first lock hook groove along the closing direction of the shielding door; the second lock disc is provided with a second lock hook groove, the fixing plate is connected with a lock plate in a rotating mode, the lock plate is provided with a lock hook portion towards one side of the second lock disc, and the lock hook portion is matched with the second lock hook groove to be locked. The invention has the advantages that the locking rod is locked by a mechanical structure, the lock can be unlocked by electromagnetism, and the lock can be unlocked manually when the electricity is cut off or the electromagnetic valve is damaged, thereby being convenient for the safety of personnel in the subway when going out.

Description

Mechanical electromagnetic lock for shielded door

Technical Field

The invention relates to the technical field of electromagnetic locks, in particular to a mechanical electromagnetic lock for a shielding door.

Background

With the continuous development of national economy, the construction of rail transit is widely developed, and many large cities are vigorously developing rail transit. But in order to guarantee passenger's safety, all can install subway shield door system additional by the platform near subway track, separate platform and track, prevent that the passenger on the platform from falling in the track. Meanwhile, the subway shield door system can effectively block the pressure difference generated in the running process of the train, and passengers are prevented from colliding the train due to the pressure difference.

The existing subway shield door system comprises a shield door and a driving door machine, wherein an electromagnetic lock is arranged on the driving door machine, and a lock rod matched with the electromagnetic lock is arranged on the shield door. When the shielding door is closed, the electromagnetic lock can effectively lock the shielding door, so that passengers are prevented from opening the shielding door at will; when the shielding door is opened, the electromagnetic lock can unlock the shielding door, so that the shielding door can be opened.

According to the technical scheme, the electromagnetic lock is unlocked through the electromagnetic valve in the unlocking process, the shielding door is convenient to open, but when the power failure or the electromagnetic valve is damaged, the electromagnetic lock loses the unlocking function, and therefore the safety of people in the subway during traveling is threatened.

Disclosure of Invention

According to the defects of the prior art, the invention aims to provide the mechanical electromagnetic lock for the shielding door, which has the effect that the locking rod is locked through a mechanical structure, the locking rod can be unlocked through electromagnetism, and the locking rod can also be manually unlocked when the power is off or the electromagnetic valve is damaged, so that the safety of personnel in a subway during traveling is facilitated.

The technical purpose of the invention is realized by the following technical scheme:

a mechanical electromagnetic lock for a shielding door comprises a mechanical lock assembly, an electromagnetic unlocking assembly and a manual unlocking assembly, wherein the mechanical lock assembly comprises a fixed plate, a support frame and a locking piece, the fixed plate is connected with a shielding door frame, the support frame is connected with one side, far away from the shielding door, of the fixed plate, the locking piece comprises a first locking disc, a first rotating shaft and a second locking disc which are sequentially connected, the first rotating shaft penetrates through the wall thickness of the fixed plate and is rotatably connected with the fixed plate, a first locking hook groove is formed in the circumferential side wall of the first locking disc, and a locking rod is clamped into the first locking hook groove along the closing direction of the shielding door; a second lock hook groove is formed in the second lock disc, a lock plate is rotatably connected to the fixing plate, a lock hook portion is arranged on one side, facing the second lock disc, of the lock plate, and the lock hook portion is matched with the second lock hook groove to be locked;

the electromagnetic unlocking assembly is positioned on one side of the supporting frame, which is far away from the fixed plate, and the manual unlocking assembly is positioned on the fixed plate and is positioned on one side of the locking plate, which is far away from the locking hook part; the electromagnetic unlocking assembly and the manual unlocking assembly respectively control the locking plate to rotate towards the direction opposite to the direction in which the locking hook part is clamped into the second locking hook groove.

Through adopting above-mentioned technical scheme, the locking lever inserts first lock hook inslot and drives and drive first lock dish rotation along with closing of shielding door along with sliding of shielding door, because the rotation of first lock dish makes the second lock dish rotatory, when second lock hook groove rotates to lock hook portion below, lock hook portion makes the second lock dish locking because gravity card goes into the second lock hook inslot to prevent that the locking lever from deviating from first lock hook groove. When the shielding door needs to be opened, the electromagnetic unlocking assembly is electrified to rotate the locking plate to enable the locking hook portion to be separated from the second locking hook groove, and the locking rod is driven to be separated from the first locking hook groove for locking when the shielding door is opened conveniently. When the solenoid valve outage, make the locking plate rotatory around the rotation point through pressing manual subassembly of unblanking to make lock hook portion break away from the second lock hook groove. Have through mechanical structure locking lever, can unblank through the electromagnetism, also can manually unblank when outage or solenoid valve damage to the effect of the personnel trip safety in the subway of being convenient for.

The present invention in a preferred example may be further configured to: the electromagnetic unlocking assembly comprises an electromagnetic valve and a microswitch, the microswitch comprises a body and a first unlocking push rod connected with the body in a lifting mode, and one end, far away from the body, of the first unlocking push rod is located on one side, facing the second lock disc, of the unlocking plate.

Through adopting above-mentioned technical scheme, solenoid valve circular telegram starts micro-gap switch for first push rod of unblanking rises and will unblank the board top open towards unlocking board one side, thereby makes lock hook portion break away from the second lock hook groove, drives the locking lever and breaks away from first lock hook groove locking when the shield door of being convenient for is opened.

The present invention in a preferred example may be further configured to: a second unlocking push rod is hinged to one side, facing the unlocking plate, of the microswitch, and one end, far away from the body, of the first unlocking push rod is abutted against the side wall of the second unlocking push rod; the second unlocking push rod faces one end of the locking plate and is rotatably connected with a roller, and the roller is abutted to the locking plate.

By adopting the technical scheme, the microswitch is used for pushing the first unlocking push rod when the electromagnetic valve is started, so that the second unlocking push rod can lift around a hinge point and lift and support the lock plate, and the lock hook part can be separated from the second lock hook groove, thereby facilitating the rotation of the lock piece; and along with the rising and the decline of first unblanking push rod, the micro-gap switch of being convenient for detects and transmits the signal of locking state. The gyro wheel is used for reducing the second push rod of unblanking and the frictional force of lock plate, and the lock plate of being convenient for is lifted and is put down under the promotion of second push rod of unblanking.

The present invention in a preferred example may be further configured to: the first rotating shaft is sleeved with a first torsion spring, one end of the first torsion spring is connected with the side wall of the fixing plate in an inserting mode, and the other end of the first torsion spring is connected with the side wall of the second lock disc in an inserting mode.

Through adopting above-mentioned technical scheme, first torsion spring is used for the latch hook portion to break away from the second lock dish of being convenient for behind the first latch hook groove and can reset fast to make first lock dish can reset thereupon, the locking lever of being convenient for can break away from first latch hook groove fast, prevents that the locking lever card from dying.

The present invention in a preferred example may be further configured to: the locking plate orientation fixed plate one side fixedly connected with second rotation axis, the cover is equipped with the second torsional spring on the second rotation axis, second torsional spring one end with the fixed plate lateral wall is pegged graft, the other end with the locking plate lateral wall is pegged graft.

Through adopting above-mentioned technical scheme, when the second lock dish was rotatory, lock hook portion's bottom and second lock dish circumference lateral wall butt, the second torsional spring is in the state of being stirred and open, when second lock hook groove turned to lock hook portion below, lock hook portion can initiatively block into second lock hook groove under the effect of second torsional spring to can strengthen the stability of locking lever locking.

The present invention in a preferred example may be further configured to: the manual unlocking assembly is connected with the fixed plate and comprises a push rod, the push rod penetrates through the wall thickness of the fixed plate, the push rod is provided with a guiding conical surface, and the wall surface of the guiding conical surface is abutted to the side wall of the locking plate far away from the locking hook portion.

Through adopting above-mentioned technical scheme, when the solenoid valve outage, can be through pressing the catch bar, along with the extrusion to the locking plate lateral wall of guide conical surface, can make the locking plate rotatory around the rotation point to make lock hook portion break away from second lock hook groove.

The present invention in a preferred example may be further configured to: the manual unblock subassembly still includes sleeve pipe and reset spring, the sleeve pipe runs through the fixed plate setting, and with fixed plate fixed connection, the catch bar is worn to locate the sleeve pipe is followed the sheathed tube extending direction slides and is connected, the catch bar is kept away from the one end of lock plate can be dismantled and be connected with the reset plate, reset spring cover is located on the catch bar and be located the sleeve pipe with between the reset plate, the catch bar orientation lock plate one side fixedly connected with promotes the piece, the guide conical surface is located promote the piece and keep away from catch bar one side.

Through adopting above-mentioned technical scheme, the sleeve pipe is used for being convenient for change after wearing and tearing, reduces the wearing and tearing and the replacement cost of fixed plate, promotes the piece and resets the board and is used for preventing that the catch bar from breaking away from the sleeve pipe, and reset spring can make the catch bar reset after being used for pressing the catch bar and rotating the lock plate, and the manual unblock subassembly of the used repeatedly of being convenient for unblanks.

The present invention in a preferred example may be further configured to: the push rod is far away from one end of the push block is in threaded connection with a locking screw, and the reset plate is sleeved on the outer side of the circumferential direction of the locking screw and located between the end face of the push rod and the head of the locking screw.

Through adopting above-mentioned technical scheme, be convenient for installation and dismantlement reset the board, and can reset the board and promote the distance between the piece through adjusting and adjust the promotion stroke of catch bar.

In summary, the invention includes at least one of the following beneficial technical effects:

1. through the arrangement of the mechanical lock assembly, the electromagnetic unlocking assembly and the manual unlocking assembly, the locking rod can be locked through a mechanical structure, and can be unlocked through electromagnetism or manually unlocked when the power is off or the electromagnetic valve is damaged, so that the safety effect of personnel in the subway can be facilitated;

2. through the arrangement of the first torsion spring, the second lock disc can be quickly reset after the lock hook part is separated from the first lock hook groove, so that the locking rod can be conveniently and quickly separated from the first lock hook groove, and the locking rod is prevented from being locked;

3. through the setting of the reset plate and the reset spring, the push rod can be prevented from being separated from the sleeve, the push rod can be reset, and the effect of unlocking the manual unlocking assembly for repeated use is facilitated.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the electromagnetic lock of the present invention.

Fig. 2 is a schematic structural view of the electromagnetic unlocking assembly in the present embodiment.

Fig. 3 is a schematic view of the mechanical lock assembly of the present embodiment.

Fig. 4 is a schematic structural diagram of the manual unlocking assembly in the embodiment.

In the drawings, 1, a mechanical lock assembly; 11. a fixing plate; 12. a support frame; 13. a locking member; 131. a first lock collar; 1311. a first latch groove; 132. a first rotating shaft; 1321. a first torsion spring; 133. a second lock collar; 1331. a second latch groove; 14. a lock plate; 141. a latch hook portion; 142. unlocking the lock plate; 15. a second rotation shaft; 151. a second torsion spring; 16. a rotating bearing; 17. a shaft end retainer ring; 2. an electromagnetic unlocking assembly; 21. an electromagnetic valve; 22. a microswitch; 221. a body; 222. a first unlocking push rod; 223. a second unlocking push rod; 2231. a roller; 3. a manual unlocking assembly; 31. a sleeve; 32. a linear bearing; 33. a push rod; 34. a pushing block; 341. a guiding conical surface; 35. a return spring; 36. a reset plate; 37. locking the screw; 4. locking the lever.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b):

referring to fig. 1 and 2, the invention discloses a mechanical electromagnetic lock for a shielded door, comprising a mechanical lock assembly 1, an electromagnetic unlocking assembly 2 and a manual unlocking assembly 3. The mechanical lock assembly 1 comprises a fixed plate 11, a support frame 12, a locking piece 13 and a locking plate 14, wherein the fixed plate 11 is connected with a door frame of a shielding door (not shown in the figure), the support frame 12 is connected with one side, far away from the shielding door, of the fixed plate 11, and the electromagnetic unlocking assembly 2 is connected with the support frame 12 and is positioned on one side, far away from the fixed plate 11, of the support frame 12; the locking piece 13 and the locking plate 14 are rotatably connected with the fixed plate 11, and the manual unlocking assembly 3 is connected with the fixed plate 11 and is positioned on one side of the locking plate 14, which is far away from the locking piece 13.

Referring to fig. 1 and 4, the locking member 13 includes a first lock disc 131, a first rotating shaft 132 and a second lock disc 133 that are connected in sequence, the first lock disc 131 is disposed towards the shield door, the first rotating shaft 132 penetrates through the wall thickness of the fixing plate 11 and is rotatably connected with the fixing plate 11, the second lock disc 133 is located between the fixing plate 11 and the support frame 12, a first lock hook groove 1311 is disposed on the circumferential side wall of the first lock disc 131, and the lock rod 4 is clamped into the first lock hook groove 1311 along the shield door closing direction and drives the first lock disc 131 to rotate. The second lock disk 133 is provided with a second lock hook groove 1331, the lock plate 14 is provided with a lock hook portion 141 on one side facing the second lock disk 133, the lock hook portion 141 abuts against the circumferential outer side wall of the second lock disk 133, and when the first lock disk 131 rotates to enable the second lock hook groove 1331 on the second lock disk 133 to rotate to the lock hook portion 141, the lock hook portion 141 and the second lock hook groove 1331 are matched for locking. In order to facilitate the connection and the rotation of locking plate 14, swivel bearing 16 is fixedly worn to be equipped with on fixed plate 11, locking plate 14 towards fixed plate 11 one side fixedly connected with second rotation axis 15, second rotation axis 15 wears to locate in swivel bearing 16, in order to facilitate the installation with dismantle locking plate 14, fix the cover at second rotation axis 15 both ends and be equipped with axle head retaining ring 17, and axle head retaining ring 17 respectively with swivel bearing 16's two terminal surfaces butt to fixed second rotation axis 15.

Referring to fig. 4, in order to prevent the latching hook 141 from actively separating from the second latching groove 1331, a second torsion spring 151 is sleeved on the second rotating shaft 15, one end of the second torsion spring 151 is inserted into the side wall of the fixing plate 11, and the other end is inserted into the side wall of the locking plate 14. The bottom end of the locking hook portion 141 abuts against the circumferential side wall of the second locking disc 133, the second torsion spring 151 is in a state of being opened by being pulled, when the second locking hook slot 1331 rotates to the position below the locking hook portion 141, the locking hook portion 141 can be actively clamped into the second locking hook slot 1331 under the action of the second torsion spring 151, and under the action of the second torsion spring 151, the locking hook portion 141 is not easily and actively separated from the second locking hook slot 1331, so that the locking effect of the locking rod 4 is stable.

Referring to fig. 2 and 3, an unlocking plate 142 is connected to a top end of the locking plate 14 on a side away from the fixing plate 11, and the unlocking plate 142 extends above the electromagnetic unlocking assembly 2. The electromagnetic locking assembly comprises an electromagnetic valve 21 and a microswitch 22, the microswitch 22 comprises a body 221, a first unlocking push rod 222 and a second unlocking push rod 223, the first unlocking push rod 222 is connected with the body 221 in a lifting mode, one end of the second unlocking push rod 223 is hinged to the side wall of the body 221, the side wall of the other end of the second unlocking push rod 223 is abutted to the unlocking plate 142, and one end, far away from the body 221, of the first unlocking push rod 222 is abutted to the side wall of the second unlocking push rod 223. In order to reduce the friction force generated by the relative movement between the unlocking plate 142 and the second unlocking push rod 223, a roller 2231 is rotatably connected to the second unlocking push rod 223 toward one end of the lock plate 14, and the roller 2231 abuts against the lock plate 14. The solenoid valve 21 is energized to activate the micro switch 22, so that the first unlocking push rod 222 is lifted and pushes the second unlocking push rod 223 to rotate to jack up the unlocking plate 142, and the unlocking plate 142 drives the locking plate 14 to rotate so that the locking hook portion 141 leaves the second locking hook groove 1331. In order to facilitate the resetting of the second locking disk 133, a first torsion spring 1321 is sleeved on the first rotating shaft 132, one end of the first torsion spring 1321 is inserted into the side wall of the fixing plate 11, and the other end is inserted into the side wall of the second locking disk 133. When the locking lever 4 rotates and locks the locking member 13, the first torsion spring 1321 is twisted due to the rotation, and when the locking hook 141 is disengaged from the second locking hook groove 1331, the first torsion spring 1321 loses the twisting abutting force, so that the second lock disk 133 is reset.

Referring to fig. 3 and 4, the manual unlocking assembly 3 is connected to the fixing plate 11, the manual unlocking assembly 3 includes a push rod 33, a sleeve 31 and a return spring 35, the sleeve 31 is disposed through the fixing plate 11 and is fixedly connected to the fixing plate 11, and the push rod 33 is disposed in the sleeve 31 and slidably connected to the sleeve 31 along an extending direction of the sleeve 31. The pushing block 34 is arranged on one side of the pushing block 34 facing the locking plate 14, a guiding conical surface 341 is arranged on the side wall of one end of the pushing block 34 far away from the pushing rod 33, and the side wall of the guiding conical surface 341 is abutted against one side of the locking plate 14 far away from the locking hook part 141; one end of the push rod 33 far away from the locking plate 14 is detachably connected with a reset plate 36, and a reset spring 35 is sleeved on the push rod 33 and is positioned between the sleeve 31 and the reset plate 36. The reset plate 36 and the pusher 34 prevent the pusher 33 from being disengaged from the sleeve 31, and the reset plate 36 is pressed toward the latch plate 14 side, so that the pusher 33 slides toward the latch plate 14 side, and the guide tapered surface 341 abuts against the side wall of the latch plate 14 and pushes the latch plate 14 gradually along with the displacement of the pusher 34. The locking plate 14 in this embodiment is L-shaped, the locking hook portion 141 is located at one end, the second rotating shaft 15 is located at an inflection point of the locking plate 14, the pushing block 34 is located at a side wall of one end far from the locking hook portion 141, and the pushing block 34 presses the locking plate 14 to rotate so that the locking hook portion 141 is disengaged from the second locking hook groove 1331.

Referring to fig. 1 and 4, in order to fix the position of the sleeve 31 on the fixing plate 11 and prevent the sleeve 31 from loosening, shaft end retainers 17 are fixedly sleeved on the side walls of the two ends of the sleeve 31, and the sleeve 31 is fixed and limited by the shaft end retainers. In order to improve the sliding precision of the push rod 33, a linear bearing 32 is fixedly arranged in the sleeve 31 in a penetrating manner, and the linear bearing 32 is sleeved on the circumferential outer side wall of the push rod 33. In order to facilitate the installation and the fixation of the reset rod, a locking screw 37 is connected to one end of the push rod 33 far away from the push block 34 in a threaded manner, and the reset plate 36 is sleeved on the circumferential outer side of the locking screw 37 and is positioned between the end surface of the push rod 33 and the head of the locking screw 37.

The implementation principle of the above embodiment is as follows: when the shielding door is closed, the electromagnetic lock on the same side of the shielding door slides towards the shielding door, the locking rod 4 locks the shielding door, is clamped into the first locking hook groove 1311 and drives the locking piece 13 to rotate, so that the locking hook part 141 is clamped into the second locking hook groove 1331 to lock the second locking disc 133, and the locking rod 4 is prevented from sliding to open the shielding door. When the shielding door needs to be opened, the electromagnetic valve 21 is electrified to start the microswitch 22, the first unlocking push rod 222 pushes the second unlocking push rod 223 to rotate, the unlocking plate 142 is jacked open, the lock hook part 141 is separated from the second lock hook groove 1331, and the locking rod 4 slides and separates from the first lock disc 131 along with the opening of the shielding door. When the electromagnetic valve 21 is failed or is powered off, the push rod 33 can be pressed, so that the push block 34 presses the locking plate 14 to enable the locking part to be separated from the second lock hook groove 1331, the shielding door can be opened through manual pushing, and the safety of personnel traveling in the subway is enhanced.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides a mechanical type electromagnetic lock for shielded gate which characterized in that: the mechanical lock assembly comprises a mechanical lock assembly (1), an electromagnetic unlocking assembly (2) and a manual unlocking assembly (3), wherein the mechanical lock assembly (1) comprises a fixing plate (11), a supporting frame (12) and a locking piece (13), the fixing plate (11) is connected with a shielding door frame, the supporting frame (12) is connected with one side, away from a shielding door, of the fixing plate (11), the locking piece (13) comprises a first locking disc (131), a first rotating shaft (132) and a second locking disc (133) which are sequentially connected, the first rotating shaft (132) penetrates through the wall thickness of the fixing plate (11) and is rotatably connected with the fixing plate (11), a first locking hook groove (1311) is formed in the circumferential side wall of the first locking disc (131), and a locking rod (4) is clamped into the first locking hook groove (1311) along the closing direction of the shielding door; a second lock hook groove (1331) is formed in the second lock disc (133), a lock plate (14) is rotatably connected to the fixing plate (11), a lock hook part (141) is arranged on one side, facing the second lock disc (133), of the lock plate (14), and the lock hook part (141) is matched with the second lock hook groove (1331) for locking;

the electromagnetic unlocking assembly (2) is located on one side, far away from the fixed plate (11), of the support frame (12), one side of the locking plate (14) is connected with an unlocking plate (142), the unlocking plate (142) extends to the position above the electromagnetic unlocking assembly (2), the electromagnetic unlocking assembly (2) comprises an electromagnetic valve (21) and a microswitch (22), the microswitch (22) comprises a body (221) and a first unlocking push rod (222) connected with the body (221) in a lifting mode, and one end, far away from the body (221), of the first unlocking push rod (222) is located on one side, far away from the second locking disc (133), of the unlocking plate (142);

the manual unlocking assembly (3) is positioned on the fixing plate (11) and is positioned on one side, far away from the lock hook part (141), of the locking plate (14); the manual unlocking assembly (3) is connected with the fixing plate (11), the manual unlocking assembly (3) comprises a push rod (33), the push rod (33) penetrates through the wall thickness of the fixing plate (11), the push rod (33) is provided with a guide conical surface (341), and the wall surface of the guide conical surface (341) is abutted to the side wall of the locking plate (14) far away from the locking hook part (141);

the electromagnetic unlocking assembly (2) and the manual unlocking assembly (3) respectively control the locking plate (14) to rotate towards the direction opposite to the direction that the locking hook part (141) is clamped into the second locking hook groove (1331).

2. The mechanical electromagnetic lock for the shielding door as claimed in claim 1, wherein: a second unlocking push rod (223) is hinged to one side, facing the unlocking plate (142), of the microswitch (22), and one end, far away from the body (221), of the first unlocking push rod (222) is abutted to the side wall of the second unlocking push rod (223); the second unlocking push rod (223) faces one end of the locking plate (14) and is rotatably connected with a roller (2231), and the roller (2231) is abutted to the locking plate (14).

3. The mechanical electromagnetic lock for the shielding door as claimed in claim 1, wherein: the cover is equipped with first torsional spring (1321) on first rotation axis (132), first torsional spring (1321) one end with fixed plate (11) lateral wall is pegged graft, the other end with second locking plate (133) lateral wall is pegged graft.

4. The mechanical electromagnetic lock for the shielding door as claimed in claim 1, wherein: locking plate (14) orientation fixed plate (11) one side fixedly connected with second rotation axis (15), the cover is equipped with second torsional spring (151) on second rotation axis (15), second torsional spring (151) one end with fixed plate (11) lateral wall is pegged graft, the other end with locking plate (14) lateral wall is pegged graft.

5. The mechanical electromagnetic lock for the shielding door as claimed in claim 1, wherein: manual unblock subassembly (3) still include sleeve pipe (31) and reset spring (35), sleeve pipe (31) run through fixed plate (11) set up, and with fixed plate (11) fixed connection, catch bar (33) wear to locate sleeve pipe (31) and edge the extending direction of sleeve pipe (31) slides and connects, catch bar (33) are kept away from the one end of lock board (14) can be dismantled and be connected with reset plate (36), reset spring (35) cover is located catch bar (33) are gone up and are located sleeve pipe (31) with between reset plate (36), catch bar (33) orientation lock board (14) one side fixedly connected with promotes piece (34), guide conical surface (341) are located promote piece (34) and keep away from catch bar (33) one side.

6. The mechanical electromagnetic lock for the shielding door as claimed in claim 5, wherein: the push rod (33) is far away from one end of the push block (34) and is in threaded connection with a locking screw (37), and the reset plate (36) is sleeved on the circumferential outer side of the locking screw (37) and is located between the end face of the push rod (33) and the head of the locking screw (37).