Unlocking structure for safety emergency door, emergency door lock and safety emergency door

Abstract

The utility model provides an unlocking structure for a safety emergency door, an emergency door lock and the safety emergency door. The unlocking structure comprises a transmission unit, a first unlocking unit, a second unlocking unit and a mounting box, the mounting box is mounted on the safety emergency door and is used for mounting the transmission unit, the first unlocking unit and the second unlocking unit; the transmission unit comprises a shifting piece and a transmission rod; the shifting piece drives the transmission rod to move in the second direction when rotating in the first direction. When the transmission rod moves in the second direction, the transmission rod is used for opening a lock installed on the safety emergency door. The first unlocking unit is used for applying force to the transmission rod through a key, so that the transmission rod moves in the second direction; the second unlocking unit comprises a force transmission shaft, and the axis of the force transmission shaft is collinear with the axis of the rotating shaft of the shifting piece; when force is applied to the push rod to enable the force transmission shaft to rotate in the first direction, the shifting piece rotates along with the force transmission shaft in the first direction. According to the unlocking structure, the space utilization rate in the mounting box can be increased, the layout flexibility is improved, and the applicability is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of platform shielding door lock, concretely relates to a kind of unlocking structure for safety emergency door, emergency door lock and safety emergency door. BACKGROUND

[0002] Emergency door is usually located at the emergency exit, safety passage of station or key area such as equipment room. These door locks are kept closed under normal circumstances to prevent unauthorized access, but need to be quickly opened in emergency to ensure personnel evacuation and equipment safety. Push rod lock is often used in station waiting hall, platform layer personnel-intensive area, and is opened by key or special tool from outside under normal circumstances, and can be quickly opened by pushing rod force from inside in emergency. The unlocking structure of existing push rod lock cannot adjust the relative position between key unlocking part and push rod unlocking part at will, and has poor flexibility when applied on different emergency doors. SUMMARY

[0003] The utility model provides an unlocking structure for safety emergency door to improve the space utilization in mounting box, increase layout flexibility and have strong applicability.

[0004] To achieve the above object, the utility model adopts the following technical scheme: an unlocking structure for safety emergency door, comprising a transmission unit, a first unlocking unit, a second unlocking unit and a mounting box; the mounting box is used for mounting the transmission unit, the first unlocking unit and the second unlocking unit, and the mounting box is mounted on the safety emergency door;

[0005] The transmission unit comprises a knob and at least one transmission rod; when the knob rotates in a first direction, it drives the at least one transmission rod to move in a second direction;

[0006] When the at least one transmission rod moves in the second direction, it is used to open a lock installed on the safety emergency door;

[0007] The first unlocking unit is used to apply force to one of the transmission rods by key to make the transmission rod move in the second direction;

[0008] The second unlocking unit comprises a transmission shaft, and the axis of the transmission shaft is collinear with the axis of the rotating shaft of the knob; when force is applied to the push rod to make the transmission shaft rotate in the first direction, the knob rotates in the first direction along with the transmission shaft.

[0009] In some embodiments, the knob comprises a knob body and at least one knob rod; the number of knob rods is the same as the number of transmission rods;

[0010] The force transmission shaft is arranged along the axis of the knob body; when the force transmission shaft rotates in the first direction, the knob body rotates in the first direction along with the force transmission shaft;

[0011] The transmission rod has a knob hole at one end, which cooperates with the corresponding knob rod, and the other end of the transmission rod is used to connect the unlocking rod; when the unlocking rod moves along the second direction with the transmission rod, it is used to open the lock installed on the safety emergency door.

[0012] In some embodiments, the number of transmission rods is two.

[0013] In some embodiments, the knob further comprises a first central hole and at least one first protrusion; the first central hole is arranged along the axis of the knob body, and the side surface of the first protrusion comprises a first surface;

[0014] The second unlocking unit further comprises a rotating cylinder, which comprises a rotating cylinder body and at least one second protrusion, and the side surface of the second protrusion comprises a third surface; the force transmission shaft is arranged along the axis of the rotating cylinder, and the rotating shaft of the rotating cylinder is coaxial with the force transmission shaft;

[0015] The first central hole is rotatably sleeved on the outside of the rotating cylinder, and when the rotating cylinder rotates in the first direction, the third surface abuts against the first surface.

[0016] In some embodiments, the number of first protrusions and the number of second protrusions are both two.

[0017] In some embodiments, the second unlocking unit further comprises a torsion spring and a limiting piece; the limiting piece is fixed on the inner wall of the mounting box;

[0018] The torsion spring is sleeved outside the rotating cylinder body, one end of the torsion spring is limited by the rotating cylinder, and the other end of the torsion spring abuts against the inner wall of the mounting box;

[0019] The rotating cylinder further comprises a third protrusion;

[0020] In the reset state, one side surface of the third protrusion abuts against the limiting piece.

[0021] In some embodiments, the limiting piece comprises a fixing piece and a fourth protrusion;

[0022] The fixing piece is in the shape of a cross, and the ends of the cross are fixedly connected with the inner wall of the mounting box, respectively;

[0023] In the reset state, one side surface of the third protrusion abuts against one side surface of the fourth protrusion.

[0024] In some embodiments, the limiting member and the first unlocking unit are respectively located on opposite sides of the second unlocking unit.

[0025] In some embodiments, one side of the mounting box is detachable or at least a part of the side of the mounting box is detachable.

[0026] An emergency door lock comprises at least one lock and an unlocking structure for a safety emergency door, the at least one lock is installed on the safety emergency door, and the unlocking structure is used for unlocking the at least one lock.

[0027] A safety emergency door comprises an emergency door body, at least one lock, a push rod and an unlocking structure for the safety emergency door, the at least one lock and the unlocking structure are respectively installed on the emergency door body, the unlocking structure is used for unlocking the at least one lock, and the push rod is used for applying force to rotate the force transmission shaft in the first direction.

[0028] Compared with the prior art, the utility model has the following beneficial effects:

[0029] The utility model discloses a second unlocking unit in the force transmission shaft's axis and the pivot of the actuator's axis are collinear, thus do not need to leave the additional space in the mounting box, improve the space utilization in the mounting box, and can increase the flexibility of the relative position layout between the first unlocking unit and the second unlocking unit in the case where the space in the mounting box allows, and further improve the applicability of the unlocking structure. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is the perspective drawing of the utility model;

[0031] Figure 2 It is the structure schematic diagram of the utility model along the axis of the rotating drum;

[0032] Figure 3 It is the connection relation schematic diagram of the transmission unit and the second unlocking unit in the utility model;

[0033] Figure 4 It is the connection relation schematic diagram of the transmission unit and the first unlocking unit, the second unlocking unit in the utility model;

[0034] Figure 5 It is the position relation schematic diagram of the rotating drum and the limiting member in the reset state in the utility model;

[0035] Figure 6 It is the structure schematic diagram of the utility model along the axis of the rotating drum;

[0036] Figure 7 It is the structure schematic diagram of the utility model along the axis of the rotating drum;

[0037] Figure 8 It is the three-dimensional structure schematic view of the actuating member in the utility model;

[0038] Figure 9 It is the three-dimensional structure schematic view of the first transmission rod in the utility model;

[0039] Figure 10 It is the structure schematic view of the mounting box after explosion in the utility model;

[0040] Figure 11 It is the structure schematic view inside the mounting box in the utility model;

[0041] Figure 12 It is the structure schematic view of the lock opening structure for the safety emergency door in the prior art;

[0042] Figure 13 It is the structure schematic view of the emergency door lock in the utility model;

[0043] Figure 14 It is the structure schematic view of the safety emergency door key side in the utility model;

[0044] Figure 15 It is the perspective structure schematic view of the safety emergency door push rod side in the utility model.

[0045] Wherein, the reference sign is: 1, transmission unit; 11, first transmission rod; 111, first rod body; 112, connecting plate; 113, placing groove; 114, actuating part; 115, first actuating hole; 116, first limiting part; 117, first connecting part; 12, second transmission rod; 121, second rod body; 122, second actuating hole; 123, second limiting part; 124, second connecting part; 13, actuating member; 131, actuating member body; 132, first protruding block; 1321, first surface; 1322, second surface; 133, actuating rod; 134, first center hole; 2, first lock opening unit; 21, actuating fork; 22, rotating rod; 23, lock sleeve; 24, tension spring; 25, lock cylinder; 3, second lock opening unit; 31, rotating cylinder; 311, rotating cylinder body; 312, blocking ring; 313, second protruding block; 3131, third surface; 3132, fourth surface; 314, third protruding block; 315, second center hole; 316, limiting hole; 32, force transmission shaft; 33, limiting member; 331, fixing member; 332, fourth protruding block; 34, torsional spring; 4, mounting box; 41, U-shaped plate; 42, side plate; 43, first cover; 431, connecting hole; 432, first sliding groove; 44, second cover; 441, second sliding groove; 45, hanging rod; 5, first direction; 6, second direction; 71, original first transmission rod; 72, original second transmission rod; 73, linkage member; 74, original second lock opening unit; 75, original first lock opening unit; 8, lockset; 9, emergency door body; 10, push rod. Detailed Implementation

[0046] To clearly illustrate the technical features of this solution, the implementation methods of this application will be described in detail below with reference to the accompanying drawings and embodiments. This will allow for a full understanding and implementation of how this application uses technical means to solve technical problems and achieve corresponding technical effects. The embodiments of this application and the various features within them can be combined with each other without conflict, and the resulting technical solutions are all within the protection scope of this application.

[0047] In the existing technology used for unlocking mechanisms of emergency doors, see [reference needed]. Figure 12 The original first unlocking unit 75 and the original second unlocking unit 74 act on the original first transmission rod 71 respectively to open the lock installed on the emergency door. The original first transmission rod 71 and the original second transmission rod 72 achieve synchronous relative movement of the original first transmission rod 71 and the original second transmission rod 72 through the linkage 73. In the relatively confined space of the mounting box, since the original first unlocking unit 75 and the original second unlocking unit 74 act on the original first transmission rod 71 respectively, the original first unlocking unit 75 and the original second unlocking unit 74 can only be arranged on the same side of the linkage 73. Moreover, sufficient space needs to be reserved for the linkage 73 in the mounting box, which makes the position adjustment of the original first unlocking unit 75 and the original second unlocking unit 74 inflexible and affects the applicability of the unlocking structure.

[0048] See Figures 1-4 This utility model provides an unlocking structure for a safety emergency door, including a transmission unit 1, a first unlocking unit 2, a second unlocking unit 3, and a mounting box 4; the mounting box 4 is used to install the transmission unit 1, the first unlocking unit 2, and the second unlocking unit 3, and the mounting box 4 is installed on the safety emergency door;

[0049] The transmission unit 1 includes a toggle member 13 and at least one transmission rod; when the toggle member 13 rotates along the first direction 5, it drives at least one transmission rod to move along the second direction 6; preferably, see Figure 2 , 3 4, 11, the transmission rod includes at least a first transmission rod 11; normally, the emergency door has two locks, located at the top and bottom of the emergency door respectively, and correspondingly, there are two transmission rods, used to open the locks located at the top and bottom of the emergency door respectively, see [reference]. Figure 2 , 3 4, 11, the transmission rod includes a first transmission rod 11 and a second transmission rod 12;

[0050] When at least one transmission rod moves in the second direction 6, it is used to open the lock installed on the emergency safety door;

[0051] The first unlocking unit 2 is used to apply force to one of the transmission rods via a key, causing the transmission rod to move in the second direction 6; see also Figure 9 The first transmission rod 11 includes a first rod body 111, a connecting plate 112, a placement groove 113, and a toggle part 114. The first rod body 111 includes a first end and a second end. The first end is used to connect to the toggle member 13, and the second end is used to open the lock or the other end of the first rod body 111 is used to connect to the structure of opening the lock. The connecting plate 112 is perpendicular to the first rod body 111. The placement groove 113 is opened on the connecting plate 112, and the toggle part 114 is provided on at least one side of the placement groove 113. Preferably, the mounting box 4 is cuboid in shape, and the outer side of the first rod body 111 and the outer side of the connecting plate 112 are respectively attached to the adjacent two side walls of the cuboid mounting box 4.

[0052] See Figure 2 , 4 The first unlocking unit 2 includes a fork 21, a rotating rod 22, a lock sleeve 23, and a lock cylinder 25. The lock sleeve 23 is fixed inside the mounting box 4, and the lock cylinder 25 is installed inside the lock sleeve 23. One end of the rotating rod 22 is fixed to the fork 21. In the reset state, the part of the fork 21 that is fixed to the rotating rod 22 is located in the placement groove 113, and the force-applying part of the fork 21 is in contact with the actuating part 114. When the key is used to cooperate with the lock cylinder 25 and the unlocking action is performed, the rotating rod 22 drives the fork 21 to rotate with the key. The force-applying part of the fork 21 abuts against the actuating part 114, causing the first rod 111 to move along the second direction 6. Preferably, the second direction 6 is the direction in which the second end is close to the actuating part 13.

[0053] Furthermore, the first unlocking unit 2 also includes a tension spring 24. One end of the tension spring 24 is fixed or hooked inside the mounting box 4, and the other end of the tension spring 24 is fixed or hooked to the force-applying part of the fork 21. When the unlocking action ends, the tension spring 24 drives the force-applying part of the fork 21 to return to its original position.

[0054] The second unlocking unit 3 includes a force transmission shaft 32, the axis of which is collinear with the axis of rotation of the actuating member 13; when force is applied to the push rod to make the force transmission shaft 32 rotate in the first direction 5, the actuating member 13 rotates along the first direction 5 with the force transmission shaft 32.

[0055] In use, in normal circumstances, the key is used to apply force to one of the transmission rods through the first unlocking unit 2 to open the lock, and in emergency situations, the push rod is used to apply force to make the transmission shaft 32 drive the actuator 13 to rotate in the first direction 5, thereby driving the transmission rod to move in the second direction 6 to open the lock. Since the axis of the transmission shaft 32 in the second unlocking unit 3 is collinear with the axis of the rotating shaft of the actuator 13, no additional space needs to be left in the installation box 4, improving the space utilization in the installation box 4 and increasing the flexibility of the relative position layout between the first unlocking unit 2 and the second unlocking unit 3 in the installation box 4, thereby improving the applicability of the unlocking structure.

[0056] In some embodiments, the actuator 13 includes an actuator body 131 and at least one actuating rod 133, and the number of actuating rods 133 is the same as the number of transmission rods.

[0057] The transmission shaft 32 is arranged along the axis direction of the actuator body 131, and when the transmission shaft 32 rotates in the first direction 5, the actuator body 131 rotates in the first direction 5 along with the transmission shaft 32.

[0058] One end of the transmission rod is provided with a push hole, and the push hole is matched with the corresponding actuating rod. The other end of the transmission rod is used to connect the unlocking rod, i.e., the first end of the transmission rod is provided with a push hole, and the second end of the transmission rod is used to connect the unlocking rod. When the unlocking rod moves in the second direction 6 along with the transmission rod, it is used to open the lock installed on the safety emergency door.

[0059] Referring to Figure 9 , the first transmission rod 11 further includes a first push hole 115 and a first connecting portion 117. The first push hole 115 is located at the first end of the first transmission rod 11, and the first connecting portion 117 is located at the second end of the first transmission rod 11. The first push hole 115 is matched with the corresponding actuating rod 133, and the first connecting portion 117 is used to connect the corresponding unlocking rod.

[0060] Referring to Figure 4 , the second transmission rod 12 includes a second rod body 121, a second push hole 122, and a second connecting portion 124. The second push hole 122 is located at the first end of the second transmission rod 12 and is matched with the corresponding actuating rod 133. The second connecting portion 124 is located at the second end of the second transmission rod 12 and is used to connect the corresponding unlocking rod.

[0061] When the second end of the first transmission rod 11 approaches the actuator 13, or when the second end of the first transmission rod 11 and the second end of the second transmission rod 12 respectively approach the actuator 13, the unlocking rod moves in the second direction 6 along with the first transmission rod 11 and / or the second transmission rod 12, and is used to open the lock installed on the safety emergency door.

[0062] Further, the first transmission rod 11 further comprises a first limiting part 116, the first limiting part 116 is used for limiting the first transmission rod 11 at a movement limit position when the first transmission rod 11 moves along the second direction 6 or moves along the opposite direction of the second direction 6; the second transmission rod 12 further comprises a second limiting part 123, the second limiting part 123 is used for limiting the second transmission rod 12 at a movement limit position; preferably, the first limiting part 116 is located outside the mounting box 4, and the second limiting part 123 is located inside the mounting box 4; when the lock is opened, the first limiting part 116 contacts with the outer wall of the mounting box 4 at a limit position of the opening process; in the resetting process, the second limiting part 123 contacts with the inner wall of the mounting box 4 at a limit position of the resetting process; the first limiting part 116 and the second limiting part 123 cooperate with each other to limit the limit positions of the opening process and the resetting process respectively, and the design is reasonable.

[0063] Referring to Figure 8 In some embodiments, the dial member 13 further comprises a first central hole 134 and at least one first protrusion 132; the first central hole 134 is opened along the axis of the dial member body 131, and the side surface of the first protrusion 132 comprises a first surface 1321;

[0064] Referring to Figure 6 , 7 The second unlocking unit 3 further comprises a rotating drum 31, the rotating drum 31 comprises a rotating drum body 311 and at least one second protrusion 313, and the side surface of the second protrusion 313 comprises a third surface 3131; the transmission shaft 32 is arranged along the axis of the rotating drum 31, and the rotating shaft of the rotating drum 31 is coaxial with the transmission shaft 32; preferably, still referring to Figure 6 , 7 The rotating drum body 311 is provided with a second central hole 315 along the axial direction, and the transmission shaft 32 matches the second central hole 315; further, the cross section of the second central hole 315 is square, triangular or regular hexagonal, which is suitable for different safety emergency doors;

[0065] The first central hole 134 is rotatably sleeved outside the rotating drum 31, and when the rotating drum 31 rotates along the first direction 5, the third surface 3131 abuts against the first surface 1321.

[0066] In an emergency, the transmission shaft 32 rotates in the first direction 5 under the action of the push rod, and the rotating drum 31 rotates with the transmission shaft 32. In the process of rotating in the first direction 5, the third face 3131 abuts against the first face 1321, so that the actuator 13 rotates with the rotating drum 31. In the normal case, when the transmission rod moves in the second direction 6, the actuator 13 is driven to rotate in the first direction 5. At this time, the first face 1321 is away from the third face 3131, that is, the rotating drum 31 does not rotate with the actuator 13. Therefore, the second unlocking unit 3 can avoid interfering with the process of opening the lock in the normal case when the key is used to open the lock.

[0067] In some embodiments, the number of first protrusions 132 and the number of second protrusions 313 are two respectively.

[0068] Referring to Figure 8 , the two first protrusions 132 are located on opposite sides of the first center hole 134, and the side surface of the first protrusion 132 further comprises a second face 1322. The first face 1321 of one of the first protrusions 132 is opposite to the second face 1322 of the other first protrusion 132. Referring to Figure 7 , the two second protrusions 313 are located on opposite sides of the rotating drum body 311, and the second protrusion 313 further comprises a fourth face 3132. The third face 3131 of one of the second protrusions 313 is opposite to the fourth face 3132 of the other second protrusion 313. When the first center hole 134 is rotatably sleeved outside the rotating drum 31, one first protrusion 132 is arranged between the opposite third face 3131 and fourth face 3132 of the two second protrusions 313. The layout is reasonable, and the rotation of the actuator 13 with the rotating drum 31 increases the force application site and ensures invalid force application.

[0069] Referring to Figure 6 , in some embodiments, the second unlocking unit 3 further comprises a torsional spring 34 and a limiting piece 33. The limiting piece 33 is fixed on the inner wall of the mounting box 4.

[0070] The torsional spring 34 is sleeved outside the rotating drum body 311, one end of the torsional spring 34 is limited by the rotating drum 31, and the other end of the torsional spring 34 abuts against the inner wall of the mounting box 4. Preferably, a limiting hole 316 is formed in the rotating drum 31, and one end of the torsional spring 34 is limited by the limiting hole 316. Further, a stop ring 312 is arranged on the circumferential side surface of the rotating drum body 311. The torsional spring 34 is sleeved outside the rotating drum body 311 on one side of the stop ring 312, and the first center hole 134 is rotatably sleeved outside the rotating drum body 311 on the other side of the stop ring 312.

[0071] The rotating drum 31 further comprises a third protrusion 314.

[0072] In the reset state, one side surface of the third protrusion 314 abuts against the limiting member 33, and the force of the limiting member 33 against the third protrusion 314 is used to counteract the force of the inner wall of the rotating drum 31 against the torsion spring 34, so as to limit the position of the rotating drum 31.

[0073] Referring to Figure 5 In some embodiments, the limiting member 33 comprises a fixing member 331 and a fourth protrusion 332.

[0074] The fixing member 331 is in the shape of a cross, and the ends of the cross are fixedly connected to the inner wall of the mounting box 4.

[0075] In the reset state, one side surface of the third protrusion 314 abuts against one side surface of the fourth protrusion 332.

[0076] In some embodiments, the limiting member 33 is located on the opposite side of the second unlocking unit 3 from the first unlocking unit 2. Generally, the first unlocking unit 2 and the second unlocking unit 3 are close to each other on the safety emergency door, and the limiting member 33 is arranged on the side far from the first unlocking unit 2, so as to reasonably utilize the space in the mounting box 4.

[0077] Referring to Figure 10 In some embodiments, one side surface of the mounting box 4 is detachable, or at least a part of the side surface of the mounting box 4 is detachable, so as to facilitate installation, disassembly and maintenance.

[0078] Referring to Figure 11 In some embodiments, the mounting box 4 comprises a U-shaped plate 41, a side plate 42, a first cover 43 and a second cover 44.

[0079] The U-shaped plate 41 comprises a bottom plate, two side vertical plates, an open side and two longitudinal ends.

[0080] The axis of the first unlocking unit 2 is perpendicular to the two side vertical plates of the U-shaped plate 41; during installation, the first rod body 111 and the second rod body 121 are close to the bottom plate of the U-shaped plate 41, the actuating member 13 is installed through the cooperation relationship between the actuating member 13 and the first transmission rod 11 and the second transmission rod 12, and then the first unlocking unit 2 and the second unlocking unit 3 are installed respectively; the lock sleeve 23 is fixed to one of the side vertical plates of the U-shaped plate 41, a first installation hole matched with the lock cylinder 25 is formed in the side vertical plate for installing the lock sleeve 23, and the lock cylinder 25 is inserted into the lock sleeve 23 from the outside of the mounting box 4 through the first installation hole.

[0081] The axis of the force transmission shaft 32 is perpendicular to the bottom plate of the U-shaped plate 41; the second mounting hole matching the second center hole 315 is formed on the bottom plate, and during installation, the center line of the second center hole 315 is collinear with the center line of the second mounting hole, the fixing member 331 is fixedly connected with the bottom plate and the side stand plate respectively, the rotating drum 31 is installed through the cooperation relationship of the rotating drum 31, the pushing member 13 and the limiting member 33, the torsional spring 34 is limitedly installed, and the inner wall of the mounting box 4 abutting against the torsional spring 34 is the inner wall of one side stand plate;

[0082] The side plate 42 is used for closing the opening side; the third mounting hole matching the second center hole 315 is formed on the side plate 42, and during installation, the center line of the second center hole 315 is collinear with the center line of the third mounting hole, that is, the pushing rod can apply force to the force transmission shaft 32 at either end of the force transmission shaft 32, the flexibility is high, and the applicability is strong;

[0083] The first cover 43 is used for closing one longitudinal end, the second cover 44 is used for closing the other longitudinal end, the first sliding groove 432 is formed on the first cover 43, the first rod body 111 is in sliding cooperation with the first sliding groove 432 when the first transmission rod 11 moves in the second direction 6 or in the opposite direction of the second direction 6, the second sliding groove 441 is formed on the second cover 44, and the second rod body 121 is in sliding cooperation with the second sliding groove 441 when the second transmission rod 12 moves in the second direction 6 or in the opposite direction of the second direction 6.

[0084] The first cover 43 and the second cover 44 are fixedly connected with the longitudinal ends by bolts respectively, the bottom plate and the side stand plate of the U-shaped plate 41 are fixedly connected with the first cover 43 and the second cover 44 at the longitudinal ends respectively, and the connection stability is increased;

[0085] One end of the side plate 42 is fixedly connected with the first cover 43 by a bolt, the other end of the side plate 42 is fixedly connected with the second cover 44 by a bolt, and the middle part of the side plate 42 is fixedly connected with the limiting member 33 by a bolt, the connection position is reasonable, and the connection is firm and stable.

[0086] Further, the mounting box 4 further comprises a hanging rod 45, the hanging rod 45 is used for fixing the corresponding end part of the tension spring 24, preferably, the length of the hanging rod 45 is equal to the distance between the two side stand plates of the U-shaped plate 41, the connecting hole 431 is formed on the first cover 43 and penetrates through the two sides of the first cover 43, before installing the first cover 43, the hanging rod 45 is first inserted into the connecting hole 431 on one side, the corresponding end part of the tension spring 24 is sleeved on the inserted hanging rod 45, then the hanging rod 45 is inserted into the connecting hole 431 on the other side, and then the first cover 43 and the U-shaped plate 41 are fixed, the two ends of the hanging rod 45 are limited by abutting against the two side stand plates of the U-shaped plate 41, and the disassembly and replacement are facilitated.

[0087] The utility model also provides a kind of emergency door lock, including at least one lock 8, and the unlocking structure for safe emergency door, at least one lock 8 is installed on safe emergency door, unlocking structure is used to open at least one lock 8.

[0088] The utility model also provides a kind of safe emergency door, including emergency door body 9, at least one lock 8, push rod 10, and the unlocking structure for safe emergency door, at least one lock 8 and unlocking structure are respectively installed on emergency door body 9, unlocking structure is used to open at least one lock, push rod is used to force transmission shaft rotates along the first direction.

[0089] Finally, it should be pointed out that the above content is only used to explain the technical scheme of the utility model, and is not a limitation on the protection scope of the utility model. Simple modifications or equivalent replacements of the technical scheme of the utility model by ordinary skilled in the art do not deviate from the essence and scope of the technical scheme of the utility model.

Claims

1. An unlocking structure for a safety emergency door, characterized in that: It includes a transmission unit, a first unlocking unit, a second unlocking unit, and a mounting box; the mounting box is used to install the transmission unit, the first unlocking unit, and the second unlocking unit, and the mounting box is installed on the emergency door. The transmission unit includes a toggle element and at least one transmission rod; when the toggle element rotates in a first direction, it drives the at least one transmission rod to move in a second direction. When the at least one transmission rod moves along the second direction, it is used to open the lock installed on the safety emergency door; The first unlocking unit is used to apply force to one of the transmission rods with a key, causing the transmission rod to move in the second direction; The second unlocking unit includes a force transmission shaft, the axis of which is collinear with the axis of rotation of the actuating member; when a force is applied to the push rod to rotate the force transmission shaft in the first direction, the actuating member rotates along the force transmission shaft in the first direction.

2. The unlocking structure for a safety emergency door according to claim 1, characterized in that: The actuating element includes an actuating element body and at least one lever; the number of levers is the same as the number of transmission rods. The force transmission shaft is arranged along the axial direction of the actuating component body; when the force transmission shaft rotates along the first direction, the actuating component body rotates along the first direction with the force transmission shaft. One end of the transmission rod has a dial hole, which cooperates with the corresponding dial rod, and the other end of the transmission rod is used to connect to the unlocking rod; When the unlocking rod moves along the second direction with the transmission rod, it is used to open the lock installed on the safety emergency door.

3. The unlocking structure for a safety emergency door according to claim 2, characterized in that: The number of transmission rods is two.

4. The unlocking structure for a safety emergency door according to claim 2, characterized in that: The actuating element further includes a first central hole and at least one first protrusion; the first central hole is formed along the axis of the actuating element body, and the side of the first protrusion includes a first surface; The second unlocking unit further includes a rotating cylinder, which includes a rotating cylinder body and at least one second protrusion, the side of the second protrusion including a third surface; the force transmission shaft is arranged along the axis of the rotating cylinder, and the rotating shaft of the rotating cylinder is coaxial with the force transmission shaft; The first central hole is rotatably sleeved on the outside of the rotating cylinder, and when the rotating cylinder rotates along the first direction, the third surface abuts against the first surface.

5. The unlocking structure for a safety emergency door according to claim 4, characterized in that: The number of the first bump and the number of the second bump are both two.

6. The unlocking structure for a safety emergency door according to claim 4, characterized in that: The second unlocking unit also includes a torsion spring and a limiting member; the limiting member is fixed to the inner wall of the mounting box; The torsion spring is sleeved on the outside of the rotating cylinder body, one end of the torsion spring is limited by the rotating cylinder, and the other end of the torsion spring abuts against the inner wall of the mounting box; The rotating drum also includes a third protrusion; In the reset state, one side of the third protrusion abuts against the limiting member.

7. The unlocking structure for a safety emergency door according to claim 6, characterized in that: The limiting component includes a fixing component and a fourth protrusion; The fastener is cross-shaped, and the ends of the cross shape are respectively fixedly connected to the inner wall of the mounting box; In the reset state, one side of the third protrusion abuts against one side of the fourth protrusion.

8. The unlocking structure for a safety emergency door according to any one of claims 1-7, characterized in that: One side of the mounting box is detachable, or at least a portion of the side of the mounting box is detachable.

9. An emergency door lock, characterized in that: The device includes at least one lock and an unlocking structure for a safety emergency door as described in any one of claims 1-8, wherein the at least one lock is mounted on the safety emergency door and the unlocking structure is used to open the at least one lock.

10. A safety emergency door, characterized in that, The device includes an emergency door body, at least one lock, a push rod, and an unlocking structure for a safety emergency door as described in any one of claims 1-8. The at least one lock and the unlocking structure are respectively mounted on the emergency door body. The unlocking structure is used to open the at least one lock, and the push rod is used to apply force to rotate the force transmission shaft along the first direction.

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