A wind and earthquake damage resistant mechanism for subway screen doors

Abstract

The present invention discloses a wind and earthquake damage resistant mechanism for a subway shielding door, comprising a load-bearing wall, the bottom end of which is fixedly connected with a connecting and fixing frame, the bottom end of which is embedded in the interior of an isolation protective cover, the interior of which is fixedly connected with a first elastic sheet, the bottom end of which is fixedly connected with a mounting bar, the top end of which is provided with a support rod, the bottom end of which is provided with a first slide groove, the interior of which is embedded with a shielding door body, and the bottom end of which is provided with a bottom slide groove. The present invention increases the stability of the shielding door in a closed state, can ensure the stability of the shielding door during use, reduces the wear of internal components, and at the same time improves the sealing of the shielding door, has a good noise reduction effect, can be applied to different convection air, and increases the wind and earthquake resistance of the shielding door.

Description

Technical Field

[0001] The invention relates to the technical field of subway shielding doors, in particular to a wind and earthquake damage resistance mechanism for subway shielding doors. Background Art

[0002] Shield doors refer to the use of glass curtain walls on the platform to surround the subway platform and the space for trains to get on and off. When the train arrives, the electric doors on the glass curtain wall are opened for passengers to get on and off the train. The main purpose of setting up shield doors is to prevent accidents caused by people falling off the track, reduce the operating energy consumption of the station's air conditioning and ventilation system, and reduce the impact of train running noise and piston wind on the station, providing passengers with a safe and comfortable waiting environment, avoiding delays in operations due to platform accidents, improving the service level of rail transit, and creating the necessary conditions for the rail transit system to achieve unmanned driving. There are two main types of shield doors. One type of shield door is a full-facade glass partition wall and movable door, and the other type of shield door system is a glass partition wall with no top and a sliding door or stainless steel fence door, which is a semi-enclosed type.

[0003] In the use of existing shielding doors, no matter it is a full-face glass partition wall and a movable door or a semi-enclosed shielding door, when the train is running at high speed, the strong wind convection air brought by it will cause a certain load on the shielding door. When the shielding door is under the load, it will cause certain damage to the driving structure inside the shielding door, which will cause the internal mechanism to become loose and deviate, etc., which will greatly reduce the service life of the shielding door. Therefore, it is urgent to design a wind and earthquake damage resistance mechanism for subway shielding doors to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a wind and earthquake damage resistance mechanism for subway screen doors, so as to solve the problem of erosion and damage of the screen doors by strong convective air during the use of the screen doors mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a wind and earthquake damage resistance mechanism for a subway screen door, comprising a load-bearing wall, an inner cavity sealing block and a door body frame, wherein the bottom end of the load-bearing wall is fixedly connected with a connecting and fixing frame, the bottom end of the connecting and fixing frame is embedded in the interior of the isolation protective cover, the interior of the isolation protective cover is fixedly connected with a first elastic sheet, the bottom end of the isolation protective cover is fixedly connected with a mounting bar, the top end of the interior of the mounting bar is provided with a support rod, the bottom end of the support rod is installed with a first slide groove, the interior of the first slide groove is embedded with a screen door body, the bottom end of the screen door body is installed with a bottom sliding groove, the side of the screen door body is provided with a protective plate, the lower surface of the support rod is evenly provided with a cavity tube vertically downward, and the cavity tube is provided with a release The pressure relief device comprises a separation cylinder, an empty slot, a first spring, a push rod, a push block, a roller, a support block, a connecting rod, a pushing rod and a sliding long slot, a separation cylinder is arranged inside the cavity cylinder, the middle position of the cavity cylinder is fixedly connected with the empty slot through a fixing block, the top wall of the inner cavity of the empty slot is fixedly connected with the first spring, the bottom end of the first spring is fixedly installed with a push rod, the bottom end of the push rod is fixedly connected with the push block, a roller is arranged at the bottom end of the push block, a central axis is inserted into the inside of the roller, the support block is fixedly installed in the empty slot, the central axis is located in the support block, sliding long slots are opened on both sides of the empty slot, connecting rods are fixedly connected on both sides of the outer surface of the push rod, and the connecting rods pass through the sliding long slot and extend to the inside of the cavity cylinder The top end of the push rod is fixedly connected to the bottom end of the push rod, the push rod is inserted into the inner cavity of the separation cylinder, a sealing rubber gasket is fixedly installed at the opening of the bottom end of the separation cylinder, the push rod passes through the sealing rubber gasket, the top end of the push rod is fixedly connected to the pneumatic piston, the inner wall of the separation cylinder is fixedly connected to the inner cavity pressure relief block, the top end of the separation cylinder is fixedly connected to the pressure relief port, the top end of the inner cavity of the separation cylinder is fixedly connected to the telescopic rod, the outer wall of the telescopic rod is sleeved with a second spring, the top end of the second spring is fixedly connected to the top end of the inner cavity of the separation cylinder, the bottom end of the second spring is fixedly connected to the inner cavity sealing block, four groups of meshing blocks are provided on the inner side of the shielding door body, the four groups of meshing blocks on both sides are staggered, and the lower surface of the meshing block is provided with The sliding rod, the upper surface of the engaging block is provided with a second sliding groove, the bottom end of the sliding rod extends to the inside of the second sliding groove, the door body frame is provided with two groups, one group of the door body frames is arranged at the top of the shielding door body, and the other group of the door body frames is arranged at the bottom of the shielding door body, one end of the surface of the door body frame at the top of the shielding door body is fixedly connected with a mounting block, the top of the mounting block is fixedly connected with a clamping block, a reinforcement rod is inserted into the inside of the clamping block, the surface of the reinforcement rod is sleeved with a limiting ring, a deep hole is provided inside the clamping block, a second spring sheet is fixedly connected inside the deep hole, a clamping block is fixedly connected to the top of the second spring sheet, a sound insulation cotton is fixedly connected to the back of the door body frame, and a third sliding groove is provided inside the bottom sliding groove.The third chute is embedded with a door frame at the bottom of the shielding door body, a booster ball is connected to the side of the door frame, a scraper is fixedly connected to one side of the door frame at the bottom of the shielding door body, a cleaning brush is fixedly connected to the top of the scraper, and a dirt drain groove is provided at the bottom of the third chute.

[0006] Preferably, the first spring piece is arranged in an arch shape, the upper end of the first spring piece is in contact with the upper inner wall of the isolation protective cover, the lower end of the first spring piece is fixedly connected to the lower inner part of the isolation protective cover, and the connecting fixing frame, the isolation protective cover and the first spring piece are arranged in two groups, and the two groups of the connecting fixing frame, the isolation protective cover and the first spring piece are respectively connected to the left and right ends of the load-bearing wall.

[0007] Preferably, the door frame at the upper end of the shielding door body is embedded in the first sliding groove, and the door frame at the lower end of the shielding door body is embedded in the bottom sliding groove.

[0008] Preferably, two groups of the shielding door bodies are provided, and the two groups of the shielding door bodies are meshed together through a protective plate.

[0009] Preferably, the top block is arranged in a semicircular shape, the supporting block is arranged in a semicircular shape, and the central axis of the roller is inserted between the supporting block and the top block.

[0010] Preferably, a push rod is vertically installed on the top end of the connecting rod, and the pneumatic piston fits tightly on the inner wall of the separation cylinder.

[0011] Preferably, the longitudinal section of the inner cavity pressure relief block is trapezoidal, the upper end opening of the inner cavity pressure relief block is large, and the lower end opening is small, and the size of the opening of the inner cavity pressure relief block decreases from top to bottom.

[0012] Preferably, the longitudinal section of the inner cavity sealing block is triangular, and a rubber sealing pad is fixedly connected to the surface of the inner cavity sealing block.

[0013] Preferably, the bottom end of the reinforcement rod is arranged as an inclined surface, and the inclined surface gradually rises from left to right, and the reinforcement rod and the engaging block are used in coordination.

[0014] Preferably, the surface of the reinforcement rod is provided with evenly spaced protrusions, and the outer wall of the reinforcement rod fits on the inside of the clamping block.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The wind and earthquake damage resistance mechanism of the subway screen door is equipped with a pressure relief device. When the screen door is subjected to greater pressure, the air pressure inside the separation tube is continuously increased through the push of the pneumatic piston, thereby pushing the inner cavity sealing block upward, exhausting the air, and performing reasonable pressure relief to achieve the purpose of protecting the screen door, extending the service life of the internal components of the screen door, and being suitable for different degrees of air convection, achieving different degrees of wind and earthquake resistance of the screen door, avoiding the occurrence of accidents, and ensuring the safety of passengers.

[0017] 2. The wind and earthquake damage resistance mechanism of the subway screen door is provided with an engaging block, a clamping block and a reinforcing rod. When the screen door is closed, the engaging blocks are engaged with each other, and the reinforcing rod is inserted inside the clamping block, thereby increasing the stability of the screen door in the closed state, ensuring the stability of the screen door during use, reducing the wear of internal components, and at the same time improving the sealing of the screen door, having a good noise reduction effect, so that passengers have a good riding experience after entering the station.

[0018] 3. The wind and earthquake damage resistance mechanism of the subway screen door is equipped with a cleaning brush, a bottom sliding groove, a door frame, a third sliding groove, a power-assisting ball and a scraper plate, which can greatly enhance the smooth operation of the screen door during use, reduce the subsequent maintenance costs and reduce the wear between parts. By cleaning the third sliding groove, it can be cleaned by itself, reducing the labor burden of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front cross-sectional structural schematic diagram of the present invention;

[0020] Figure 2 It is a schematic diagram of the front cross-sectional structure of the connecting rod and the pushing rod of the present invention;

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

[0022] Figure 4 It is a schematic diagram of the front cross-sectional structure of the engagement block and the sliding rod of the present invention;

[0023] Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure at B in the middle;

[0024] Figure 6 It is a schematic diagram of the top view of the structure of the clamping block and the reinforcement rod of the present invention;

[0025] Figure 7 It is a schematic diagram of the top view of the structure of the first slide slot and the shielding door body of the present invention;

[0026] Figure 8 It is a schematic diagram of the top cross-sectional structure of the bottom sliding groove and the power-assisting ball of the present invention;

[0027] Fig. 9 It is a schematic diagram of the front cross-sectional structure of the sliding rod and the second sliding groove of the present invention.

[0028] In the figure: 1, load-bearing wall; 2, connecting bracket; 3, isolation protective cover; 4, first spring; 5, mounting strip; 6, support rod; 7, first slide groove; 8, shielding door body; 9, protective plate; 10, partition cylinder; 11, empty groove; 12, first spring; 13, push rod; 14, push block; 15, roller; 16, support block; 17, connecting rod; 18, push rod; 19, cleaning brush; 20, pneumatic piston; 21, drain groove; 22, sealing rubber pad; 23, inner cavity pressure relief block; 24, inner Cavity sealing block; 25. Second spring; 26. Telescopic rod; 27. Pressure relief port; 28. Bottom sliding groove; 29. ​​Engaging block; 30. Sliding rod; 31. Door frame; 32. Mounting block; 33. Block; 34. Reinforcement rod; 35. Limiting ring; 36. Deep hole; 37. Second spring piece; 38. Clamping block; 39. Sound insulation cotton; 40. Second sliding groove; 41. Third sliding groove; 42. Power-assisted ball; 43. Scraper plate; 44. Cavity tube; 45. Long sliding groove; 46. Fixed block. DETAILED DESCRIPTION

[0029] 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.

[0030] See also Figure 1-9 , an embodiment provided by the present invention:

[0031] A wind and earthquake damage resistance mechanism for a subway screen door comprises a load-bearing wall 1, an inner cavity sealing block 24 and a door body frame 31. A connecting and fixing frame 2 is fixedly connected to the bottom end of the load-bearing wall 1. By being fixed to the load-bearing wall 1, the firmness of the connection is increased and the sealed installation is ensured at the same time. The bottom end of the connecting and fixing frame 2 is embedded in the interior of an isolation protective cover 3. The interior of the isolation protective cover 3 is fixedly connected with a first elastic piece 4. The connecting and fixing frame 2, the isolation protective cover 3 and the first elastic piece 4 are provided in two groups. The two groups of connecting and fixing frames 2, the isolation protective cover 3 and the first elastic piece 4 are respectively connected to the left and right ends of the load-bearing wall 1. The first elastic piece 4 is arranged in an arch shape. The arch shape has good rebound ability. The upper end of the first elastic piece 4 abuts against the upper inner wall of the isolation protective cover 3. The lower end of the first elastic piece 4 is fixedly connected to the lower inner part of the isolation protective cover 3, which has good stability.

[0032] The bottom end of the isolation protective cover 3 is fixedly connected with a mounting strip 5, and a support rod 6 is provided at the internal top end of the mounting strip 5. A first slide groove 7 is installed at the bottom end of the support rod 6, and the first slide groove 7 is installed inside the mounting strip 5. A shielding door body 8 is embedded inside the first slide groove 7. Two groups of shielding door bodies 8 are provided. A protective plate 9 is provided on the side of the shielding door body 8. The end of the shielding door body 8 away from the first slide groove 7 is embedded in the bottom sliding groove 28. Two groups of door body frames 31 are provided, one group of door body frames 31 is provided at the top of the shielding door body 8, and the other group of door body frames 31 is provided at the bottom end of the shielding door body 8. The door body frame 31 at the top of the shielding door body 8 is embedded in the first slide groove 7, and the door body frame 31 at the bottom end of the shielding door body 8 is embedded in the bottom sliding groove 28. The two groups of shielding door bodies 8 are meshed together through the protective plate 9, which improves the wind and earthquake resistance of the shielding door body 8.

[0033] The lower surface of the support rod 6 is evenly provided with a cavity tube 44 vertically downward, and a pressure relief device is provided inside the cavity tube 44. The pressure relief device includes a separation tube 10, an empty groove 11, a first spring 12, a push rod 13, a push block 14, a roller 15, a support block 16, a connecting rod 17 and a pushing rod 18. The separation tube 10 fits tightly on the inner wall of the cavity tube 44, and the middle position of the cavity tube 44 is fixedly connected with the empty groove 11 through a fixing block 46. The top wall of the inner cavity of the empty groove 11 is fixedly connected with the first spring 12, and the bottom end of the first spring 12 is fixedly installed with a push rod 13, and the bottom end of the push rod 13 is fixedly connected with the push block 14. The push block 14 is set in a semicircular shape, and the first spring 12 is provided to the top The position of the block 14 is reset, a roller 15 is provided at the bottom end of the top block 14, a central axis is inserted inside the roller 15, a support block 16 is fixedly installed inside the empty slot 11, and the central axis is located inside the support block 16. When the roller 15 rotates, the semicircular top block 14 can limit the position of the roller 15, and the support block 16 supports the central axis of the roller 15, thereby increasing the firmness of the connection. In addition, when the roller 15 is squeezed, the roller 15 rises and pushes the top block 14 to move upward, so that the top rod 13 squeezes the first spring 12, and the bottom end of the roller 15 can always fit with the door frame 31, and at the same time, the central axis of the roller 15 can rotate in the top block 14, thereby reducing friction.

[0034] Sliding long grooves 45 are provided on both sides of the hollow groove 11, and connecting rods 17 are fixedly connected to both sides of the outer surface of the push rod 13. The connecting rods 17 pass through the sliding long grooves 45 and extend to the inside of the cavity tube 44. The upper surface of the connecting rod 17 is fixedly connected to the bottom end of the push rod 18. The push rod 18 is inserted into the inner cavity of the separation tube 10. A sealing rubber pad 22 is fixedly installed at the opening at the bottom end of the separation tube 10. The push rod 18 passes through the sealing rubber pad 22. The sealing effect is enhanced by the sealing rubber pad 22. The top of the push rod 18 is fixedly connected to a pneumatic piston 20. The pneumatic piston 20 fits the inner wall of the separation tube 10. The pneumatic piston 20 creates a closed space inside the separation tube 10. The pressure inside the separation tube 10 is continuously increased under the push of the pneumatic piston 20, and is buffered by the force of gas rebound to prevent external pressure from directly acting on the parts.

[0035] The inner wall of the separation tube 10 is fixedly connected with an inner cavity pressure relief block 23, the top of the separation tube 10 is fixedly connected with a pressure relief port 27, the top of the inner cavity of the separation tube 10 is fixedly connected with a telescopic rod 26, the outer wall of the telescopic rod 26 is sleeved with a second spring 25, the top of the second spring 25 is fixedly connected to the top of the inner cavity of the separation tube 10, the bottom of the second spring 25 is fixedly connected with an inner cavity sealing block 24, the longitudinal section of the inner cavity sealing block 24 is a triangle, the surface of the inner cavity sealing block 24 is fixedly connected with a rubber sealing pad, and the rubber sealing pad increases the separation tube 10 has good sealing performance inside. The longitudinal section of the inner cavity pressure relief block 23 is trapezoidal. The upper opening of the inner cavity pressure relief block 23 is large, and the lower opening is small. The opening size of the inner cavity pressure relief block 23 decreases from top to bottom. The inner cavity pressure relief block 23 contacts the inner cavity sealing block 24. When the pressure is released, the push of the pneumatic piston 20 increases the internal pressure of the separation tube 10. The air compression drives the inner cavity sealing block 24 to float up. After the inner cavity sealing block 24 moves, the telescopic rod 26 is squeezed to contract to release the pressure, thereby extending the service life of the internal components of the shielding door.

[0036] Combination Figure 4 , Figure 7 and Fig. 9 Four groups of meshing blocks 29 are arranged on the inner side of the shielding door body 8, and the four groups of meshing blocks 29 on both sides are staggered. A sliding rod 30 is arranged on the lower surface of the meshing block 29. The sliding rod 30 is not installed on the meshing block 29 at the bottom end on the left side. The sliding rod 30 is movably connected and can move up and down in the installation groove of the meshing block 29. A second slide groove 40 is provided on the upper surface of the meshing block 29. The second slide groove 40 is not provided on the meshing block 29 at the top end on the right side. The bottom end of the sliding rod 30 extends to the inside of the second slide groove 40. When the shielding door bodies 8 are close to each other, the sliding rod 30 will be embedded in the inside of the second slide groove 40, so that the meshing of the meshing block 29 is more stable, and the connection between the meshing blocks 29 on the left and right sides is increased, and the stability of the overall structure is enhanced.

[0037] A third slide groove 41 is provided inside the bottom sliding groove 28, and a door frame 31 at the bottom end of the shielding door body 8 is embedded inside the third slide groove 41, which facilitates the movement of the door frame 31 and makes the door frame 31 more sensitive. A mounting block 32 is fixedly connected to one end of the surface of the door frame 31 at the top of the shielding door body 8, and a clamping block 33 is fixedly connected to the top of the mounting block 32. A reinforcing rod 34 is inserted inside the clamping block 33, and the bottom end of the reinforcing rod 34 is set to an inclined surface, and the inclined surface is from left to right. The right side gradually rises, the surface of the reinforcing rod 34 is sleeved with a limiting collar 35, the inside of the block 33 is provided with a deep hole 36, the inside of the deep hole 36 is fixedly connected with a second spring piece 37, and the top of the second spring piece 37 is fixedly connected with a clamping block 38. When the shielding door bodies 8 are close to each other, the upper end of the meshing block 29 is engaged with each other, and the reinforcing rod 34 is pushed up by the upper end of the meshing block 29. When the reinforcing rod 34 rises, it is inserted into the deep hole 36 opened in the block 33. The reinforcing rod 34 is inserted into the interior of the card block 33, so that the connection between the meshing blocks 29 becomes more compact. The surface of the reinforcing rod 34 is provided with evenly arranged protrusions. The outer wall of the reinforcing rod 34 fits on the inside of the clamping block 38. The compactness of the connection is increased by providing the protrusions. When the shielding door bodies 8 move away from each other, thereby driving the meshing blocks 29 to move away from each other, the reinforcing rod 34 will be pushed away by the elastic strips provided inside, completing the reset of the position of the reinforcing rod 34 for the next use. The surface of the reinforcing rod 34 is sleeved with a limiting ring 35. The position of the reinforcing rod 34 is further controlled by the limitation of the limiting ring 35. A deep hole 36 is provided inside the card block 33. A second spring piece 37 is fixedly connected to the inside of the deep hole 36. The top of the second spring piece 37 is fixedly connected to the clamping block 38. The back of the door frame 31 is fixedly connected to sound insulation cotton 39. The provision of sound insulation cotton 39 can effectively reduce noise and create a good riding environment for passengers.

[0038] A power-assisting ball 42 is connected to the side of the door frame 31. The power-assisting ball 42 can reduce the friction to the greatest extent and reduce the energy consumption during the opening and closing process of the shielding door. A scraper plate 43 is fixedly connected to one side of the door frame 31 at the bottom. The sliding of the scraper plate 43 can effectively remove the stubborn stains adhering to the inside of the third slide groove 41. A cleaning brush 19 is fixedly connected to the top of the scraper plate 43. The cleaning force is further enhanced by brushing with the cleaning brush 19. A drainage groove 21 is provided at the bottom end of the third slide groove 41 to push the cleaned stains into the drainage groove 21. By scraping and cleaning the stains, the inside of the third slide groove 41 is cleaner and more stable when the shielding door is opened and closed.

[0039] Working principle: During the use of the wind and earthquake damage resistance mechanism of the subway screen door, when the screen door bodies 8 are closed, the protective plate 9 is used to seal to ensure the compactness of the connection between the screen door bodies 8. The back of the protective plate 9 is equipped with an engagement block 29 and a sliding rod 30. When the screen door bodies 8 are close to each other, the engagement between the engagement blocks 29 can strengthen the connection between the screen door bodies 8 to avoid the vertical position deviation of the screen door bodies 8 under external forces. A sliding rod 30 is arranged just above the second slide groove 40. The second slide The groove 40 is horizontally opened at the top of the engagement block 29. When the shielding door body 8 slides, the sliding rod 30 is driven to move horizontally, so that the sliding rod 30 is inserted into the second slide groove 40. When the shielding door bodies 8 are close to each other until they are attached, the engagement block 29 pushes the reinforcement rod 34 to rise. When the reinforcement rod 34 rises, the engagement block 29 pushes the reinforcement rod 34 to be inserted into the deep hole 36 opened in the card block 33, thereby strengthening the connection and improving the wind and earthquake resistance of the shielding door. The door frame 31 at the upper end of the shielding door body 8 is embedded in the door frame 31. The first slide groove 7 is inserted into the inside of the first slide groove 7, and the first slide groove 7 is installed in the inside of the mounting strip 5. The roller 15 and the door frame 31 at the top of the shielding door body 8 are both arranged in the inside of the mounting strip 5. When the shielding door body 8 slides, the roller 15 is driven to rotate, and the friction is reduced by replacing the sliding friction with the rolling friction, thereby reducing the wear between the door frame 31 at the top of the shielding door body 8 and the roller 15. When subjected to a large force, when the first spring 12 is subjected to the external force to the limit, the connecting rod 17 is driven by the rise of the top rod 13. The connecting rod 17 rises, and the pushing rod 18 is directly pushed to contract. When the pushing rod 18 contracts, the pneumatic piston 20 is pushed to increase the internal air pressure. When the air pressure inside the separation cylinder 10 reaches the limit, by pushing the inner cavity sealing block 24 to rise, when the inner cavity pressure relief block 23 and the inner cavity sealing block 24 do not conflict with each other, the internal air pressure will be discharged through the pressure relief port 27. The internal load is reduced through reasonable pressure release, the service life of the shielding door is extended, and the direct impact on the internal structure when the external impact force is large is avoided.

[0040] When the shielding door bodies 8 are moving away from each other, the door frame 31 at the bottom end of the shielding door body 8 is driven by the protective plate 9 to slide inside the bottom sliding groove 28. During the sliding process, the door frame 31 at the bottom end of the shielding door body 8 drives the rotation of the power-assisting ball 42, which reduces friction and slows down wear when the power-assisting ball 42 rotates. The scraper plate 43 cleans the inside of the third slide groove 41 by continuously sliding to one end, thereby ensuring the smooth opening and closing of the shielding door body 8. After the scraper plate 43 scrapes the third slide groove 41, the cleaning brush 19 is used to clean the scraped debris and stains, and the debris is pushed by the cleaning brush 19 to be put into the inside of the sewage trough 21, thereby ensuring the smooth operation of the shielding door, while also reducing wear, extending the service life of internal parts, and improving the wind and earthquake resistance effect.

[0041] 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. A wind and earthquake damage resistance mechanism for a subway screen door, comprising a load-bearing wall (1), an inner cavity sealing block (24) and a door frame (31), characterized in that: The bottom end of the load-bearing wall (1) is fixedly connected to a connecting and fixing frame (2), the bottom end of the connecting and fixing frame (2) is embedded in the interior of the isolation protective cover (3), the interior of the isolation protective cover (3) is fixedly connected to a first spring sheet (4), the bottom end of the isolation protective cover (3) is fixedly connected to a mounting bar (5), the top end of the interior of the mounting bar (5) is provided with a support rod (6), the bottom end of the support rod (6) is provided with a first slide groove (7), the interior of the first slide groove (7) is embedded with a shielding door body (8), the bottom end of the shielding door body (8) is provided with a bottom sliding groove (28), the lower surface of the support rod (6) is evenly provided with a cavity tube (44) vertically downward, the cavity tube (44) is provided with a pressure relief device, the release device The pressure device comprises a separation cylinder (10), a hollow groove (11), a first spring (12), a push rod (13), a push block (14), a roller (15), a support block (16), a connecting rod (17), a push rod (18) and a sliding long groove (45), wherein the separation cylinder (10) is arranged inside the hollow cavity cylinder (44), the hollow groove (11) is fixedly connected to the middle position of the hollow cavity cylinder (44) via a fixing block (46), the top wall of the inner cavity of the hollow groove (11) is fixedly connected to the first spring (12), the bottom end of the first spring (12) is fixedly mounted with a push rod (13), the bottom end of the push rod (13) is fixedly connected to the push block (14), the bottom end of the push block (14) is provided with a roller (15), and the roller (15) ), the support block (16) is fixedly mounted inside the hollow groove (11), the center axis is located inside the support block (16), both sides of the hollow groove (11) are provided with long sliding grooves (45), the outer surfaces of the push rod (13) are fixedly connected with connecting rods (17) on both sides, the connecting rods (17) pass through the long sliding grooves (45) and extend into the hollow cavity tube (44), the upper surface of the connecting rod (17) is fixedly connected to the bottom end of the push rod (18), the push rod (18) is inserted into the inner cavity of the separation tube (10), a sealing rubber pad (22) is fixedly mounted at the opening at the bottom end of the separation tube (10), the push rod (18) passes through the sealing rubber pad (22), the top end of the push rod (18) A pneumatic piston (20) is fixedly connected, an inner wall of the separation cylinder (10) is fixedly connected to an inner cavity pressure relief block (23), a top end of the separation cylinder (10) is fixedly connected to a pressure relief port (27), a top end of the inner cavity of the separation cylinder (10) is fixedly connected to a telescopic rod (26), a second spring (25) is sleeved on the outer wall of the telescopic rod (26), a top end of the second spring (25) is fixedly connected to the top end of the inner cavity of the separation cylinder (10), a bottom end of the second spring (25) is fixedly connected to an inner cavity sealing block (24), four groups of meshing blocks (29) are arranged on the inner side of the shielding door body (8), the four groups of meshing blocks (29) on both sides are staggered, and a sliding rod (30) is arranged on the lower surface of the meshing block (29).A second slide groove (40) is provided on the upper surface of the engagement block (29), and the bottom end of the sliding rod (30) extends to the inside of the second slide groove (40). Two groups of door frames (31) are provided, one group of door frames (31) is provided at the top end of the shielding door (8), and the other group of door frames (31) is provided at the bottom end of the shielding door (8). A mounting block (32) is fixedly connected to one end of the surface of the door frame (31) at the top end of the shielding door (8), and a clamping block (33) is fixedly connected to the top end of the mounting block (32). A reinforcing rod (34) is inserted into the inside of the clamping block (33), and a limiting collar (35) is sleeved on the surface of the reinforcing rod (34). A deep hole (36) is provided in the inside of the clamping block (33). The deep hole (36) is fixedly connected to a second spring piece (37), the top of the second spring piece (37) is fixedly connected to a clamping block (38), the back of the door frame (31) is fixedly connected to a sound insulation cotton (39), the bottom sliding groove (28) is provided with a third sliding groove (41), the door frame (31) at the bottom end of the shielding door (8) is embedded in the third sliding groove (41), the side of the door frame (31) is connected to a booster ball (42), a scraper plate (43) is fixedly connected to one side of the door frame (31) arranged at the bottom end of the shielding door (8), the top of the scraper plate (43) is fixedly connected to a cleaning brush (19), and the bottom end of the third sliding groove (41) is provided with a dirt leakage groove (21); A push rod (18) is vertically mounted on the top end of the connecting rod (17), and the pneumatic piston (20) is tightly fitted on the inner wall of the separation cylinder (10); The longitudinal section of the inner cavity pressure relief block (23) is a trapezoid, the upper end opening of the inner cavity pressure relief block (23) is large, and the lower end opening is small, and the size of the opening of the inner cavity pressure relief block (23) decreases from top to bottom; The longitudinal section of the inner cavity sealing block (24) is triangular, and a rubber sealing pad is fixedly connected to the surface of the inner cavity sealing block (24); The bottom end of the reinforcing rod (34) is arranged to be an inclined surface, and the inclined surface gradually rises from left to right. The reinforcing rod (34) and the engaging block (29) are used in coordination. The surface of the reinforcing rod (34) is provided with evenly spaced protrusions, and the outer wall of the reinforcing rod (34) fits onto the inside of the clamping block (38).

2. The wind and earthquake damage resistance mechanism of a subway screen door according to claim 1, characterized in that: The first spring piece (4) is arranged in an arch shape, the upper end of the first spring piece (4) abuts against the upper inner wall of the isolation protective cover (3), the lower end of the first spring piece (4) is fixedly connected to the lower inner part of the isolation protective cover (3), the connection fixing frame (2), the isolation protective cover (3) and the first spring piece (4) are arranged in two groups, and the two groups of the connection fixing frame (2), the isolation protective cover (3) and the first spring piece (4) are respectively connected to the left and right ends of the load-bearing wall (1).

3. The wind and earthquake damage resistance mechanism of a subway screen door according to claim 1, characterized in that: The door body frame (31) at the upper end of the shielding door body (8) is embedded in the interior of the first sliding groove (7), and the door body frame (31) at the lower end of the shielding door body (8) is embedded in the interior of the bottom sliding groove (28).

4. The wind and earthquake damage resistance mechanism of a subway screen door according to claim 1, characterized in that: The shielding door bodies (8) are provided in two groups, and the two groups of shielding door bodies (8) are meshed together via a protective plate (9).

5. The wind and earthquake damage resistance mechanism of a subway screen door according to claim 1, characterized in that: The top block (14) is arranged in a semicircular shape, the support block (16) is arranged in a semicircular shape, and the central axis of the roller (15) is inserted between the support block (16) and the top block (14).

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