An emergency opening assembly of an opening and closing mechanism for a subway screen door

Abstract

The present invention discloses an emergency opening assembly of an opening and closing mechanism for a subway screen door, comprising a fixed door, a movable door, an emergency door lock, a slider and a door lock block, wherein a movable door is arranged inside the fixed door, a sliding sleeve is sleeved at the bottom end of the movable door, a protective cover is sleeved at the top end of the movable door, a slider and a door lock block are arranged inside the protective cover, and the sliders are arranged on both sides of the door lock block, an emergency door lock is embedded in the front outer surface of the movable door, a cam is fixed at the rear end of the emergency door lock, a pressure rod is arranged on one side of the cam, a second sleeve and a second spring are sleeved on the outer surface of the pressure rod, and the second spring is arranged at the top end of the second sleeve, and a transmission rod is connected to the top end of the pressure rod through a hinge shaft. The present invention has a hydraulic opening mechanism, which is convenient for more rapid and labor-saving emergency opening of the screen door, and improves the speed of opening the screen door in an emergency.

Description

Technical Field

[0001] The invention relates to the technical field of rail transportation, in particular to an emergency opening component of an opening and closing mechanism for a subway screen door. Background Art

[0002] The subway is a type of rail transit. The subway is mainly built underground in the city. It has a fast speed and does not get stuck in traffic. It is a commonly used public transportation. The subway screen door is the protective cover of the subway. Its more important function is to prevent passengers from slipping and falling into the subway track and endangering their lives.

[0003] Subway screen doors mostly adopt a double-door design. The subway screen doors are mainly composed of three parts: a fixed door, a movable door and an opening and closing mechanism. At present, the opening and closing mechanisms of subway screen doors are opened synchronously with the subway car doors, which is very safe. If some emergency occurs, the subway screen doors can also be opened manually by keys. The emergency opening components play the role of emergency opening of subway screen doors.

[0004] In this regard, Chinese patent application No. 201820335815.9 discloses a rail transit safety door / shielding door system with emergency escape function, including a driving unit, a push-open function connector, an escape door body, a linkage device, and a ground rail. The driving unit is installed above the escape door body, the push-open function connector is installed in the driving unit, one end of the push-open function connector is connected to the escape door body, and the other end of the push-open function connector is connected to the linkage device, and the escape door body is installed on the ground rail. The rail transit safety door / shielding door system with emergency escape function effectively solves the problem of delaying precious escape time when the safety door / shielding door is opened in an emergency, and opens an escape passage for life in an instant. It is provided with a push-open function connector and is installed on the top of the shielding door. When in use, it is necessary to manually push the function connector to open the subway shielding door. However, the subway shielding door has a door closing locking mechanism, and the door closing locking structure is opened and closed by electromagnetic control and has a backup power supply. Therefore, when the door closing locking structure is closed, the shielding door is very difficult to open.

[0005] In the prior art, in order to solve the above-mentioned problem, an emergency closing switch is installed on the door locking structure, which can timely cut off the power of the door locking structure and solve the problem that the shield door is very difficult to open. However, the existing shield door emergency opening component can only disconnect the door locking structure, and the shield door still needs to be opened manually. In the initial stage of opening, the door locking structure will still resist the opening and closing mechanism on the shield door, and it still takes a lot of force to open the shield door. In an emergency, the opening effect is poor. Therefore, it is urgent to design an emergency opening component of the opening and closing mechanism for subway shield doors to solve the above-mentioned problem. Summary of the invention

[0006] The object of the present invention is to provide an emergency opening assembly of an opening and closing mechanism for a subway platform screen door, so as to solve the problem in the above background technology that the platform screen door cannot be opened conveniently and labor-savingly in an emergency and the emergency opening effect is poor.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an emergency opening component of an opening and closing mechanism for a subway screen door, comprising a fixed door, a movable door, an emergency door lock, a slider and a door locking block, wherein a movable door is arranged on the inner side of the fixed door, a sliding sleeve is arranged on the bottom end of the movable door, a protective cover is arranged on the top end of the movable door, a slider and a door locking block are arranged on the inner side of the protective cover, and the slider is arranged on both sides of the door locking block, an emergency door lock is embedded in the front end outer surface of the movable door, a cam is fixed to the rear end of the emergency door lock by screws, and a A pressure rod, the outer surface of which is sleeved with a second sleeve and a second spring, and the second spring is arranged on the top of the second sleeve, the top of the pressure rod is connected to a transmission rod through a hinge shaft, the other end of the transmission rod is provided with a second push rod, the top end of the second push rod is sleeved with a second piston block, the outer surface of the second piston block is sleeved with a first oil cylinder, the inner side of the first oil cylinder is provided with a first piston block away from the upper side of the second piston block, a connecting rod is inserted into the inner side of the first piston block, and the top end of the connecting rod is sleeved with a first push rod, and the outer surface of the first push rod is sleeved with a first sleeve and a first spring.

[0008] Preferably, a telescopic rod is provided on the inner side of the emergency door lock, the rear end of the telescopic rod passes through the rear end outer surface of the emergency door lock, the telescopic rod and the inner wall of the emergency door lock form a telescopic structure, the rear end of the telescopic rod is provided with a power switch, and the rear end of the telescopic rod is in contact with the outer surface of the power switch.

[0009] Preferably, the bottom end of the door closing locking block is engaged with the upper surface of the slider, and the bottom end of the slider is connected and fixed to the upper surface of the movable door by bolts, the top end of the first push rod penetrates the upper surface of the movable door, and the top end of the first push rod is in contact with the lower surface of the door closing locking block, the first push rod and the first sleeve form a lifting structure, and the first sleeve is connected and fixed to the inner wall of the movable door by screws.

[0010] Preferably, the bottom end of the first push rod is in a "T" shape, one end of the first spring abuts against the lower surface of the first sleeve, and the bottom end of the first spring abuts against the outer surface of the first push rod, and the first push rod and the first spring form an elastic structure.

[0011] Preferably, the first oil cylinder has a cylindrical structure, the bottom chamber of the first oil cylinder is larger than the top chamber, the first piston block is arranged in the top chamber of the first oil cylinder, the shape of the first piston block is consistent with the shape of the inner cavity of the first oil cylinder, the connecting rod and the first oil cylinder form a lifting structure, and sealing rings are provided at both ends of the first oil cylinder, and the two groups of sealing rings are respectively sleeved on the outer surfaces of the connecting rod and the second push rod.

[0012] Preferably, the outer surface of the second push rod is smooth, the second push rod and the first oil cylinder form a lifting structure, the shape of the second piston block matches the shape of the inner cavity of the first oil cylinder, and the second piston block is a movable structure with the first oil cylinder.

[0013] Preferably, a blocking block is integrally connected to the top of the second piston block, and the blocking block is in a "T"-shaped structure. Both sides of the top of the blocking block are in contact with the inner wall of the first oil cylinder. A connecting pipe is provided on one side of the blocking block, and one end of the connecting pipe is integrally connected and fixed to the outer surface of the first oil cylinder, and the other end of the connecting pipe is integrally connected to the second oil cylinder, and the inner cavity of the connecting pipe is connected to the inner cavity of the first oil cylinder.

[0014] Preferably, the outer surface of the transmission rod is rotatably connected to the inner wall of the movable door via a hinge shaft, one end of the transmission rod abuts against the lower surface of the second push rod, and the other end of the transmission rod is rotatably connected to the pressure rod via a hinge shaft.

[0015] Preferably, the pressure rod is in an "L"-shaped structure, the second sleeve is connected and fixed to the inner wall of the movable door by screws, the pressure rod and the second sleeve form a lifting structure, the bottom end of the pressure rod abuts against the outer surface of the cam, and the pressure rod and the second spring form an elastic structure.

[0016] Preferably, a third piston is provided on the inner side of the second oil cylinder, one end of the third piston of the second oil cylinder is in contact with the inner wall of the second oil cylinder, a top pile is inserted into the other end of the third piston, and the top pile penetrates the outer surface of the second oil cylinder, the second oil cylinder is connected and fixed to the inner wall of the movable door by screws, and the top pile penetrates the outer surface of the movable door.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: the emergency opening assembly of the opening and closing mechanism for the subway shield door has a hydraulic opening mechanism, which facilitates faster and more labor-saving emergency opening of the shield door and improves the speed of opening the shield door in an emergency.

[0018] A first sleeve, a first push rod, a connecting rod, a first oil cylinder, a first piston block, a second push rod, a second piston block, a transmission rod, a pressure rod, a second sleeve and a cam are provided. By installing a cam at the rear end of the emergency door lock, when a key is inserted into the emergency door lock and turned, the cam can be driven to rotate, so that the cam pushes the pressure rod to press down in the second sleeve, and the pressure rod can drive the transmission rod to rotate with the axis connected to the transmission rod as the center of the circle, so that the other end of the transmission rod pushes up the second push rod. By using the principle of lever, it is very easy for the transmission rod to push up the second push rod, and then through the first sleeve, the key can be driven to rotate. The second push rod pushes the second piston block to make piston movement in the first oil cylinder, so that the second piston block pushes the hydraulic oil in the first oil cylinder to rise, and the hydraulic oil pushes the first piston block to rise, so that the first piston block drives the first push rod to rise in the first sleeve through the connecting rod, so that the first push rod can lift the door closing locking block from the sliding block, and the limit of the movable door can be completely released, making it easier for the movable door to be opened, thereby achieving the effect of having a hydraulic opening mechanism, facilitating faster and more labor-saving emergency opening of the shielding door, and improving the speed of opening the shielding door in an emergency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic front view of the structure of the present invention;

[0020] Figure 2 For the present invention Figure 1 A schematic front view and cross-sectional view of the structure of the middle movable door;

[0021] Figure 3 For the present invention Figure 2 A schematic diagram of the structure enlargement in the middle;

[0022] Figure 4 For the present invention Figure 2 A schematic front view and cross-sectional view of the structure of the first oil cylinder;

[0023] Figure 5 For the present invention Figure 2 A magnified schematic diagram of the structure at B in the middle;

[0024] Figure 6 For the present invention Figure 4 A schematic cross-sectional view of the structure of the first oil cylinder in the right side;

[0025] Figure 7 For the present invention Figure 6 Schematic diagram of the structure of the second cylinder in the top view.

[0026] In the figure: 1. fixed door; 2. movable door; 3. sliding sleeve; 4. protective cover; 5. emergency door lock; 6. telescopic rod; 7. sliding block; 8. door closing locking block; 9. first sleeve; 10. first push rod; 11. first spring; 12. connecting rod; 13. first oil cylinder; 14. sealing ring; 15. first piston block; 16. second push rod; 17. second piston block; 18. blocking block; 19. transmission rod; 20. pressure rod; 21. second sleeve; 22. second spring; 23. cam; 24. push pile; 25. connecting pipe; 26. second oil cylinder; 27. third piston. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-7 An embodiment of the present invention is as follows: an emergency opening component of an opening and closing mechanism for a subway screen door, comprising a fixed door 1, a movable door 2, an emergency door opening lock 5, a slider 7 and a door closing locking block 8, wherein the movable door 2 is arranged on the inner side of the fixed door 1, a sliding sleeve 3 is sleeved on the bottom end of the movable door 2, a protective cover 4 is sleeved on the top end of the movable door 2, a slider 7 and a door closing locking block 8 are arranged on the inner side of the protective cover 4, and the slider 7 is arranged on both sides of the door closing locking block 8.

[0029] Preferably, a telescopic rod 6 is provided on the inner side of the emergency door lock 5, and the rear end of the telescopic rod 6 passes through the rear end outer surface of the emergency door lock 5, and the telescopic rod 6 and the inner wall of the emergency door lock 5 form a telescopic structure, and a power switch is provided at the rear end of the telescopic rod 6, and the rear end of the telescopic rod 6 conflicts with the outer surface of the power switch. The power switch uses a double-control switch, so that the door closing locking block 8, the power switch and the subway screen door system main control switch are dual-controlled, so that the door closing locking block 8 can be controlled by the power switch and the subway screen door system main control switch. The double-control wiring method is a prior art and will not be elaborated here.

[0030] An emergency door lock 5 is embedded in the front end outer surface of the movable door 2, and a cam 23 is fixed to the rear end of the emergency door lock 5 by screws. A pressure rod 20 is arranged on one side of the cam 23, and a second sleeve 21 and a second spring 22 are sleeved on the outer surface of the pressure rod 20, and the second spring 22 is arranged at the top end of the second sleeve 21. The top end of the pressure rod 20 is connected to a transmission rod 19 through a hinge shaft, and a second push rod 16 is arranged on the other end of the transmission rod 19. The top end of the second push rod 16 is sleeved with a second piston block 17, and the outer surface of the second piston block 17 is sleeved with a first oil cylinder 13.

[0031] A first piston block 15 is arranged on the inner side of the first oil cylinder 13 away from the upper side of the second piston block 17, a connecting rod 12 is inserted into the inner side of the first piston block 15, and a first push rod 10 is sleeved on the top end of the connecting rod 12, and a first sleeve 9 and a first spring 11 are sleeved on the outer surface of the first push rod 10.

[0032] Preferably, the bottom end of the door closing locking block 8 is engaged with the upper surface of the slider 7, and the bottom end of the slider 7 is connected and fixed to the upper surface of the movable door 2 by bolts. The top end of the first push rod 10 penetrates the upper surface of the movable door 2, and the top end of the first push rod 10 conflicts with the bottom surface of the door closing locking block 8. The first push rod 10 and the first sleeve 9 form a lifting structure, and the first sleeve 9 is connected and fixed to the inner wall of the movable door 2 by screws. The slider 7 and the door closing locking block 8 are prior art and will not be described in detail here. The first push rod 10 conflicts with the bottom end of the door closing locking block 8. Figure 3 As shown, when the first push rod 10 rises in the first sleeve 9, it can push the door closing locking block 8 to rise.

[0033] Preferably, the bottom end of the first push rod 10 is in a "T" shape, one end of the first spring 11 abuts against the lower surface of the first sleeve 9, and the bottom end of the first spring 11 abuts against the outer surface of the first push rod 10, and the first push rod 10 and the first spring 11 form an elastic structure. Figure 3 As shown, the first spring 11 provides elastic force for the first push rod 10, so that the first push rod 10 can always maintain the same position when no external force is applied. Figure 3 Status shown.

[0034] Preferably, the first oil cylinder 13 is a cylindrical structure, the bottom chamber of the first oil cylinder 13 is larger than the top chamber, the first piston block 15 is arranged in the top chamber of the first oil cylinder 13, the shape of the first piston block 15 is consistent with the shape of the inner cavity of the first oil cylinder 13, the connecting rod 12 and the first oil cylinder 13 form a lifting structure, both ends of the first oil cylinder 13 are provided with sealing rings 14, the outer surface of the second push rod 16 is smooth, the second push rod 16 and the first oil cylinder 13 form a lifting structure, the shape of the second piston block 17 is consistent with the shape of the inner cavity of the first oil cylinder 13, and the second piston block 17 is a movable structure of the first oil cylinder 13, such as Figure 4 As shown, two groups of sealing rings 14 are respectively sleeved on the outer surfaces of the connecting rod 12 and the second push rod 16. The sealing ring 14 plays a role in improving the sealing between the connecting rod 12 and the second push rod 16 and the first oil cylinder 13. The second piston block 17 makes a piston movement in the first oil cylinder 13, which can push the hydraulic oil in the first oil cylinder 13 to push the first piston block 15 to make a piston movement, that is, the first piston block 15 can drive the connecting rod 12 to rise and fall in the first oil cylinder 13. The large-area second piston block 17 pushes the hydraulic oil, making it easier for the hydraulic oil to push the first piston block 15.

[0035] Preferably, the top of the second piston block 17 is integrally connected with a blocking block 18, and the blocking block 18 is in a "T"-shaped structure. Both sides of the top of the blocking block 18 are in contact with the inner wall of the first oil cylinder 13. A connecting pipe 25 is provided on one side of the blocking block 18. One end of the connecting pipe 25 is integrally connected and fixed to the outer surface of the first oil cylinder 13, and the other end of the connecting pipe 25 is integrally connected to the second oil cylinder 26. The inner cavity of the connecting pipe 25 is communicated with the inner cavity of the first oil cylinder 13. A third piston 27 is provided on the inner side of the second oil cylinder 26. One end of the third piston 27 of the second oil cylinder 26 is in contact with the inner wall of the second oil cylinder 26. A top pile 24 is inserted at the other end of the third piston 27, and the top pile 24 penetrates the outer surface of the second oil cylinder 26. The second oil cylinder 26 is connected and fixed to the inner wall of the movable door 2 by screws. The top pile 24 penetrates the outer surface of the movable door 2. The second oil cylinder 26 is installed on the side of the first oil cylinder 13. Figure 6 As shown, when the second piston block 17 rises in the first cylinder 13, the blocking block 18 will be driven to rise. When the first push rod 10 pushes the door closing locking block 8 to rise to the highest position, the first push rod 10 can no longer rise, so that the connecting rod 12 can no longer rise. At this time, the blocking block 18 is away from the connecting pipe 25, so that the hydraulic oil in the first cylinder 13 flows into the second cylinder 26 through the connecting pipe 25, and the third piston 27 can be pushed to move in the second cylinder 26, so that the third piston 27 drives the push pile 24 to push out the movable door 2, so that the two movable doors 2 can be pushed to open to both sides, so that a gap is left between the two movable doors 2, which is convenient for the staff to open the movable door 2.

[0036] Preferably, the outer surface of the transmission rod 19 is rotatably connected to the inner wall of the movable door 2 through a hinge shaft, one end of the transmission rod 19 is in contact with the lower surface of the second push rod 16, and the other end of the transmission rod 19 is rotatably connected to the pressure rod 20 through a hinge shaft. The pressure rod 20 is in an "L"-shaped structure, and the second sleeve 21 is connected and fixed to the inner wall of the movable door 2 by screws. The pressure rod 20 and the second sleeve 21 form a lifting structure, and the bottom end of the pressure rod 20 is in contact with the outer surface of the cam 23, and the pressure rod 20 and the second spring 22 form an elastic structure, such as Figure 5 As shown, the emergency door lock 5 is composed of an outer shell and a lock core, and the lock core can rotate in the outer shell. This is a prior art and will not be described in detail here. The cam 23 is sleeved on the lock core, so that when the lock core rotates, the cam 23 can be driven to rotate, so that the protrusion on the cam 23 pushes the pressure rod 20 downward, so that the pressure rod 20 drives the transmission rod 19 to rotate with the axis connected to the transmission rod 19 as the center of the circle, so that the other end of the transmission rod 19 pushes up the second push rod 16, so that the second push rod 16 can push the second piston block 17 to rise, and the lever mechanism composed of the pressure rod 20 and the transmission rod 19 makes it easier to operate the second push rod 16 to rise.

[0037] Working principle: First, when assembling the movable door 2, it is necessary to install the emergency opening component of the opening and closing mechanism of the subway screen door in the movable door 2, and electrically connect the output end of the door closing locking block 8 to the control switch located at the rear end of the emergency door opening lock 5 through a wire, so that the door closing locking block 8 is double controlled.

[0038] When the movable door 2 needs to be opened urgently, the staff only needs to insert the key into the emergency door lock 5, so that the tail end of the key pushes the telescopic rod 6, and the telescopic rod 6 pushes the control switch, so that the door locking block 8 is powered off and loses the electromagnetic attraction and fixation, and then the staff turns the key counterclockwise to make the lock core in the emergency door lock 5 rotate counterclockwise, so that the lock core drives the cam 23 to rotate, so that the cam 23 pushes the pressure rod 20 to press down in the second sleeve 21, so that the pressure rod 20 drives the transmission rod 19 to rotate with the axis connected to the transmission rod 19 as the center of the circle. The other end of the transmission rod 19 lifts the second push rod 16, and then the second push rod 16 pushes the second piston block 17 to do piston movement in the first oil cylinder 13, so that the second piston block 17 pushes the hydraulic oil in the first oil cylinder 13 to rise, and the hydraulic oil pushes the first piston block 15 to rise, so that the first piston block 15 drives the first push rod 10 to rise in the first sleeve 9 through the connecting rod 12, and the first push rod 10 can lift the door closing locking block 8 from the slider 7, so that the limit of the movable door 2 can be completely released, so that the movable door 2 can be easily opened.

[0039] When the second piston block 17 rises in the first oil cylinder 13, it will drive the blocking block 18 to rise. When the first push rod 10 pushes the door closing locking block 8 to rise to the highest position, the first push rod 10 can no longer rise, so that the connecting rod 12 can no longer rise. At this time, the blocking block 18 is away from the connecting pipe 25, so that the hydraulic oil in the first oil cylinder 13 flows into the second oil cylinder 26 through the connecting pipe 25, and the third piston 27 can be pushed to move in the second oil cylinder 26, so that the third piston 27 drives the push pile 24 to push out the movable door 2, so that the two movable doors 2 can be pushed to open to both sides, so that a gap is left between the two movable doors 2, which is convenient for the staff to continue to open the movable door 2. The above is all the working principles of the present invention.

[0040] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. An emergency opening assembly of an opening and closing mechanism for a subway screen door, comprising a fixed door (1), a movable door (2), an emergency door opening lock (5), a sliding block (7) and a door closing locking block (8), characterized in that: A movable door (2) is arranged on the inner side of the fixed door (1), a sliding sleeve (3) is sleeved on the bottom end of the movable door (2), a protective cover (4) is sleeved on the top end of the movable door (2), a sliding block (7) and a door closing locking block (8) are arranged on the inner side of the protective cover (4), and the sliding block (7) is arranged on both sides of the door closing locking block (8), an emergency door opening lock (5) is embedded in the front end outer surface of the movable door (2), a cam (23) is fixed to the rear end of the emergency door opening lock (5) by screws, a pressure rod (20) is arranged on one side of the cam (23), a second sleeve (21) and a second spring (22) are sleeved on the outer surface of the pressure rod (20), and the second spring (22) is arranged on the second sleeve The top end of the pressure rod (20) is connected to a transmission rod (19) via a hinge shaft, the other end of the transmission rod (19) is provided with a second push rod (16), the top end of the second push rod (16) is sleeved with a second piston block (17), the outer surface of the second piston block (17) is sleeved with a first oil cylinder (13), the inner side of the first oil cylinder (13) is provided with a first piston block (15) away from the upper side of the second piston block (17), the inner side of the first piston block (15) is provided with a connecting rod (12), the top end of the connecting rod (12) is sleeved with a first push rod (10), and the outer surface of the first push rod (10) is sleeved with a first sleeve (9) and a first spring (11); The bottom end of the door closing locking block (8) is engaged with the upper surface of the slider (7), the bottom end of the slider (7) is connected and fixed to the upper surface of the movable door (2) by means of bolts, the top end of the first push rod (10) penetrates the upper surface of the movable door (2), and the top end of the first push rod (10) contacts the bottom surface of the door closing locking block (8), the first push rod (10) and the first sleeve (9) form a lifting structure, and the first sleeve (9) is connected and fixed to the inner wall of the movable door (2) by means of screws; The first oil cylinder (13) is of cylindrical structure, the bottom chamber of the first oil cylinder (13) is larger than the top chamber, the first piston block (15) is arranged in the top chamber of the first oil cylinder (13), the shape of the first piston block (15) is consistent with the shape of the inner chamber of the first oil cylinder (13), the connecting rod (12) and the first oil cylinder (13) form a lifting structure, and sealing rings (14) are arranged at both ends of the first oil cylinder (13), and two groups of the sealing rings (14) are respectively sleeved on the outer surfaces of the connecting rod (12) and the second push rod (16); The top end of the second piston block (17) is integrally connected to a blocking block (18), the blocking block (18) being in a "T"-shaped structure, both sides of the top end of the blocking block (18) being in contact with the inner wall of the first oil cylinder (13), a connecting pipe (25) being provided on one side of the blocking block (18), one end of the connecting pipe (25) being integrally connected and fixed to the outer surface of the first oil cylinder (13), the other end of the connecting pipe (25) being integrally connected to the second oil cylinder (26), the inner cavity of the connecting pipe (25) being in communication with the inner cavity of the first oil cylinder (13).

2. The emergency opening assembly of the opening and closing mechanism for a subway screen door according to claim 1, characterized in that: A telescopic rod (6) is arranged on the inner side of the emergency door lock (5), the rear end of the telescopic rod (6) penetrates the rear end outer surface of the emergency door lock (5), the telescopic rod (6) and the inner wall of the emergency door lock (5) form a telescopic structure, the rear end of the telescopic rod (6) is arranged with a power switch, and the rear end of the telescopic rod (6) contacts the outer surface of the power switch.

3. The emergency opening assembly of the opening and closing mechanism for a subway screen door according to claim 1, characterized in that: The bottom end of the first push rod (10) is in a "T"-shaped structure, one end of the first spring (11) contacts the lower surface of the first sleeve (9), and the bottom end of the first spring (11) contacts the outer surface of the first push rod (10), and the first push rod (10) and the first spring (11) form an elastic structure.

4. The emergency opening assembly of the opening and closing mechanism for a subway screen door according to claim 1, characterized in that: The outer surface of the second push rod (16) is smooth; the second push rod (16) and the first oil cylinder (13) form a lifting structure; the outer shape of the second piston block (17) matches the inner shape of the first oil cylinder (13); the second piston block (17) and the first oil cylinder (13) are movable structures.

5. The emergency opening assembly of the opening and closing mechanism for a subway screen door according to claim 1, characterized in that: The outer surface of the transmission rod (19) is rotatably connected to the inner wall of the movable door (2) via a hinge shaft, one end of the transmission rod (19) abuts against the lower surface of the second push rod (16), and the other end of the transmission rod (19) is rotatably connected to the pressure rod (20) via a hinge shaft.

6. The emergency opening assembly of the opening and closing mechanism for a subway screen door according to claim 1, characterized in that: The pressure rod (20) is in an "L"-shaped structure. The second sleeve (21) is connected and fixed to the inner wall of the movable door (2) by means of screws. The pressure rod (20) and the second sleeve (21) form a lifting structure. The bottom end of the pressure rod (20) contacts the outer surface of the cam (23). The pressure rod (20) and the second spring (22) form an elastic structure.

7. The emergency opening assembly of the opening and closing mechanism for a subway screen door according to claim 1, characterized in that: A third piston (27) is arranged on the inner side of the second oil cylinder (26); one end of the third piston (27) of the second oil cylinder (26) contacts the inner wall of the second oil cylinder (26); a top pile (24) is inserted into the other end of the third piston (27); and the top pile (24) penetrates the outer surface of the second oil cylinder (26); the second oil cylinder (26) is connected and fixed to the inner wall of the movable door (2) by screws; and the top pile (24) penetrates the outer surface of the movable door (2).

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