Building layered slow-descent self-rescue type escape cylinder

Abstract

The utility model provides a building layered slow descent self-rescue type escape cylinder which comprises a plurality of standard knots connected in sequence, a bottom buffer is arranged below the lowest standard knot, each standard knot comprises a fireproof door, an enclosure cylinder and a damping cylinder, the fireproof door is installed and fixed on an escape platform, a connecting port is arranged between the enclosure cylinder and the fireproof door, and the damping cylinder is arranged on the bottom buffer. The damping cylinder is arranged on the lower side of the enclosure cylinder, an upper opening of the damping cylinder is connected with a lower opening of the enclosure cylinder, the damping cylinder is connected with an upper opening of the enclosure cylinder in the next standard knot or connected with a bottom buffer, a damping plate is arranged in the damping cylinder, and a damping shaft is arranged on the damping plate. And a damping device for driving the damping plate to slowly open and reset is arranged on the damping shaft. According to the building layered slow-descent self-rescue type escape cylinder, escape personnel are buffered by the multiple standard section damping cylinders and finally fall to the bottom layer buffer at a low speed, the bottom layer buffer provides buffering in the vertical direction and enables the human body to slide in the horizontal direction instead of falling, and the safety of the escape personnel is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire fighting equipment technical field, especially a kind of building layered slow descent self-help type escape tube. BACKGROUND

[0002] When high-rise building fire occurs, elevator stops, smoke and fire can spread to higher floor, personnel without first time escape will be trapped in building, sometimes difficult to continue to escape along stairway safe passage, firemen are also sometimes difficult to rescue in time.In this case, escape personnel can only self-help, the existing escape personnel from balcony or window escape by rope, need to escape personnel from high-rise slide, slide speed is unstable, only one person can descend at a time, vulnerable to lower smoke and fire interference, risk coefficient is big. SUMMARY

[0003] The utility model provides a kind of building layered slow descent self-help type escape tube to overcome the deficiency that escape personnel self-help escapes from balcony or window by rope in prior art, escape personnel needs to grab rope from high-rise slide, slide speed is unstable, only one person can descend at a time, vulnerable to lower smoke and fire interference, risk coefficient is big.

[0004] The utility model provides a kind of building layered slow descent self-help type escape tube to overcome the deficiency that escape personnel self-help escapes from balcony or window by rope in prior art, escape personnel needs to grab rope from high-rise slide, slide speed is unstable, only one person can descend at a time, vulnerable to lower smoke and fire interference, risk coefficient is big.

[0005] Each floor corresponds to the setting of a standard section, a group or multiple groups of enclosure cylinder and damping cylinder are arranged in the standard section, which is determined by the floor height, when the floor height is less than 3.6 meters, a group of enclosure cylinder and damping cylinder can be arranged in the standard section, when the floor height is greater than 3.6 meters, the enclosure cylinder and damping cylinder are correspondingly added according to the height, the spacing between adjacent damping cylinders is not less than 1.8 meters and not more than 3.6 meters; the escape personnel open the fireproof door from the escape platform or refuge chamber, enter the enclosure cylinder through the connecting port, and then fall onto the damping plate in the damping cylinder; the damping device makes the escape personnel slowly fall at a safe low speed to the next standard section; the connecting port is arranged between the enclosure cylinder and the fireproof door to play a connecting and guiding role.

[0006] Further, the bottom buffer includes a buffer plate, a lower sleeve is arranged at the upper end of the buffer plate, an upper sleeve is arranged at the lower end of the damping cylinder of the second floor, the upper sleeve is embedded in the lower sleeve, the lower half of the buffer plate is an arc plate curved away from the building, the buffer plate is arranged away from the ground, a buffer is arranged below the buffer plate, and a sliding ring is arranged on the sidewall of the buffer plate and sleeved on the stand column.

[0007] The buffer plate can slide up and down in the vertical direction through the buffer and the sliding ring sleeved on the stand column, when the escape personnel falls to the bottom buffer, the buffer plays a buffering role on the buffer plate, and the buffer plate is arranged in the shape of a slide changing from the vertical direction to the horizontal direction, so that the escape personnel can safely slide to the ground.

[0008] Further, the top cover includes an upper top cover, a lower top cover and a storage box, one end of the top cover is connected with the wall of the building and stands on the stand column, the lower top cover is installed above the standard section of the top floor, the upper top cover has the storage box, the door of the storage box opens to the roof direction of the building, the storage box stores the lifesaving rope and the safety rope, one end of the lifesaving rope is connected with the lifesaving rope fixing ring installed on the upper top cover, and one end of the safety rope is connected with the safety rope fixing ring installed on the upper top cover.

[0009] When the escape cylinder fails and the personnel are trapped, the fire fighter goes to the roof, opens the storage box of the top cover, takes out the lifesaving rope and the safety rope, and after determining that the lifesaving rope is connected with the lifesaving rope fixing ring and the safety rope is connected with the safety rope fixing ring, the fire fighter wears the lifesaving rope and takes the safety rope, and then descends to the damping cylinder of the trapped floor to rescue the trapped escape personnel.

[0010] Further, the fireproof door includes a fireproof door leaf and a fireproof door frame, the fireproof door is fixed on the outer wall of the escape platform or the refuge chamber of the building through the fireproof door frame, a handrail, a power switch and a sliding door switch are arranged on the fireproof door frame, an automatic door closer is arranged between the fireproof door leaf and the fireproof door frame, a fireproof door lock is installed on the fireproof door leaf, and an electronic sign is installed on the inner wall surface of the escape platform or the refuge chamber.

[0011] The fireproof door leaf is used for separating the escape platform and the connecting port, or for separating the refuge room and the connecting port, and an automatic door closer is installed on the fireproof door leaf. The fireproof door lock is installed on the fireproof door leaf and can only be opened from the inside of the escape platform or the refuge room. An electronic prompt board is installed on the inner wall of the escape platform or the refuge room and is arranged close to the fireproof door frame. The electronic prompt board provides various information of the system through the indicator light and the LED screen, such as when the escape personnel are trapped due to the failure of the damping plate of a certain floor, the floors above the floor will be prompted to prohibit entering the escape cylinder system.

[0012] Further, the enclosure cylinder comprises a track, an enclosure plate and a sliding door, a plurality of enclosure plates are arranged below the track at intervals, and the plurality of enclosure plates are inclined to the axis direction of the enclosure cylinder from top to bottom, the side of the enclosure cylinder close to the fireproof door is provided with an escape port, the escape port is provided with a sliding door, the upper end of the sliding door is provided with a toothed rail in sliding cooperation with the track, and the track is provided with an electric gear for driving the toothed rail to slide along the track.

[0013] Further, the outer side of the enclosure cylinder is provided with a C-shaped first enclosure ring and a second enclosure ring, the first enclosure ring corresponds to the middle position of the enclosure plate, the second enclosure ring corresponds to the bottom position of the enclosure plate, and the first enclosure ring and the second enclosure ring are provided with elastic connectors between each enclosure plate.

[0014] The enclosure cylinder is large at the top and small at the bottom, and the periphery is semi-openly enclosed by a plurality of enclosure plates which are slightly inclined to the axis direction. The inclined enclosure plates and the elastic connectors can provide a certain buffering effect for the falling escape personnel and slow down the falling speed. The C-shaped first enclosure ring and the second enclosure ring are arranged away from the escape port. The electric gear cooperates with the toothed rail to control the sliding door to slide along the track to open or close.

[0015] Further, the damping device comprises an 8-shaped concave-convex wheel sleeved on the damping shaft, one side of the 8-shaped concave-convex wheel is provided with a clutch for controlling whether the 8-shaped concave-convex wheel rotates synchronously with the damping shaft, and the damping cylinder is provided with a plurality of viscous dampers for driving the 8-shaped concave-convex wheel to be in a horizontal state.

[0016] The clutch comprises a clutch sleeve, a clutch concave wheel and a clutch convex wheel, bearings are arranged between the outer side of the clutch sleeve and the damping cylinder, the clutch concave wheel is arranged in the clutch sleeve and fixedly connected with the clutch sleeve, the 8-shaped concave-convex wheel is arranged on the side of the clutch concave wheel away from the clutch convex wheel and fixedly connected with the clutch concave wheel, the 8-shaped concave-convex wheel and the clutch concave wheel are sleeved on the damping shaft and slidably connected with the damping shaft, the clutch convex wheel is arranged in the clutch sleeve and fixedly connected with the damping shaft, one side of the clutch is provided with an electromagnetic control device for driving the clutch convex wheel to approach or move away from the clutch concave wheel, the electromagnetic control device comprises an electromagnet, a spring and a magnetic guide plate, the electromagnet is fixedly arranged on the damping cylinder, the magnetic guide plate is sleeved on the end of the damping shaft, a plurality of balls are arranged between the magnetic guide plate and the damping shaft, and the spring is arranged between the magnetic guide plate and the electromagnet.

[0017] Further, a human body sensing probe and an emergency falling switch are arranged at the upper opening of the damping cylinder, a damping plate micro switch matched with the horizontal state damping plate is arranged on the inner side wall of the damping cylinder, an electric telescopic brake lever and an electric telescopic anti-pinch lever for limiting the opening angle of the damping plate are arranged on the inner side wall of the damping cylinder, and a transparent observation window convenient to disassemble is arranged on the outer side wall of the damping cylinder.

[0018] Further, the damping device comprises a heart-shaped concave-convex wheel sleeved on the damping shaft, and one side of the heart-shaped concave-convex wheel is provided with a clutch for controlling whether the heart-shaped concave-convex wheel rotates synchronously with the damping shaft.

[0019] The clutch comprises a clutch concave wheel, a clutch convex wheel and a gear type clutch sleeve, the gear type clutch sleeve is arranged on one side of the heart-shaped concave-convex wheel and fixedly connected with the heart-shaped concave-convex wheel, an oval-shaped sliding block in rotationally connected with the gear type clutch sleeve is arranged on the side of the gear type clutch sleeve away from the heart-shaped concave-convex wheel, an electric machine gear for driving the gear type clutch sleeve to rotate is arranged on the oval-shaped sliding block, an oval-shaped sliding rail in slidingly connected with the oval-shaped sliding block is arranged on the inner wall surface of the damping cylinder, the clutch concave wheel is arranged in the gear type clutch sleeve and fixedly connected with the gear type clutch sleeve, the heart-shaped concave-convex wheel and the clutch concave wheel are sleeved on the damping shaft and slidably connected with the damping shaft, the clutch convex wheel is arranged in the gear type clutch sleeve and fixedly connected with the damping shaft, and one side of the clutch is provided with an electromagnetic control device for driving the clutch convex wheel to approach or move away from the clutch concave wheel.

[0020] The electromagnetic control device comprises an electromagnet, a spring and a magnetic guide plate, the electromagnet is fixedly connected with the oval-shaped sliding block, the magnetic guide plate is sleeved on the end of the damping shaft, a plurality of balls are arranged between the magnetic guide plate and the damping shaft, and the spring is arranged between the magnetic guide plate and the electromagnet.

[0021] The damping cylinder is provided with viscous dampers matched with the love-shaped concave-convex wheels at a position below the oval slide rail.

[0022] Further, a human body sensing probe and an emergency falling switch are arranged at the upper opening of the damping cylinder, the bottom of the oval slide rail is provided with a damping plate micro switch matched with a horizontal state damping plate, an electric telescopic brake lever for limiting the opening angle of the damping plate is arranged on the inner side wall of the damping cylinder, and a transparent observation window convenient for disassembly is arranged on the outer side wall of the damping cylinder.

[0023] The building layered slow descent self-rescue type escape cylinder has the advantages that one standard section is arranged on each floor, one or more groups of surrounding cylinders and damping cylinders are arranged in the standard section according to the floor height, when an escape personnel enters an escape platform or an escape room and opens a fireproof door, the system power is automatically connected, the sliding door on the surrounding cylinder of the floor is automatically opened, an electronic prompt board on the inner side of the fireproof door is observed, the system state is confirmed to be normal and safe, the escape personnel jumps into the surrounding cylinder through the connecting port, then falls into the damping cylinder, the viscous dampers in the damping cylinder generate damping effect on the escape personnel falling too fast through the damping plate in the horizontal state, the damping plate is turned over under the action of the gravity of the human body only when the speed of the human body is safe and harmless, the human body falls to the next standard section, then the damping plate of the floor is automatically restored to the horizontal state, meanwhile, the fireproof door and the sliding door on the surrounding cylinder of the floor are also automatically closed, so as to prepare for the escape of the personnel on the upper floor. The escape personnel is buffered through the standard sections one by one, and finally falls to the bottom buffer at a low speed, the bottom buffer provides buffering in the vertical direction and also changes the falling of the human body to sliding in the horizontal direction, so that the safety of the escape personnel is further ensured. BRIEF DESCRIPTION OF DRAWINGS

[0024] The utility model will be further described in connection with the drawings and examples.

[0025] Figure 1 is the structural schematic diagram of example one;

[0026] Figure 2 is the structural schematic diagram of the standard section of example one;

[0027] Figure 3 is the exploded schematic diagram of the standard section of example one;

[0028] Figure 4 is the exploded schematic diagram of the damping cylinder of example one;

[0029] Figure 5 is the exploded schematic diagram of the surrounding cylinder of example one;

[0030] Figure 6 is the structural schematic diagram of the fireproof door of example one;

[0031] Figure 7 is a structural diagram of the bottom buffer of Example 1;

[0032] Figure 8 is a structural diagram of the top cover of Example 1;

[0033] Figure 9 is a structural diagram of the damping plate of Example 1;

[0034] Figure 10 is an exploded diagram of the damping plate of Example 1;

[0035] Figure 11 is a structural diagram of Example 2;

[0036] Figure 12 is a structural diagram of the standard section of Example 2;

[0037] Figure 13 is an exploded diagram of the damping plate of Example 2;

[0038] Figure 14 is a signal diagram of the escape cylinder;

[0039] Figure 15 is an installation diagram of the escape cylinder installed on the outer wall of the escape platform;

[0040] Figure 16 is an installation diagram of the escape cylinder installed on the outer wall of the refuge chamber.

[0041] In the drawings:

[0042] 1. Standard section

[0043] 11. Damping cylinder, 110. Damping plate, 111. Viscous damper, 112. Damping cylinder enclosure, 113. Observation window, 114. Upper sleeve, 115. Electric telescopic brake rod, 116. Electric telescopic anti-pinch rod, 117. Damping plate micro switch, 118. Emergency drop switch, 119. Human body sensing probe

[0044] 1100. Composite steel plate, 1101. Buffer pad, 1102. Damping shaft, 1103. 8-shaped concave-convex wheel, 1104. Clutch concave wheel, 1105. Clutch convex wheel, 1106. Clutch sleeve, 1107. Ball, 1108. Magnetic guide plate, 1109. Spring, 1110. Electromagnet, 1111. Elliptical slide rail, 1112. Elliptical slide block, 1113. Motor gear, 1114. Gear type clutch sleeve, 1115. Heart-shaped concave-convex wheel

[0045] 12, enclosure cylinder, 120, post, 121, enclosure plate, 122, first enclosure ring, 123, second enclosure ring, 124, elastic connector, 125, sliding door, 126, rack rail, 127, track, 128, electric gear

[0046] 13, fire door, 130, fire door leaf, 131, fire door frame, 132, fire door lock, 133, automatic door closer, 134, handrail, 135, electronic sign, 136, power switch, 137, sliding door switch

[0047] 14, connecting port

[0048] 2, bottom buffer

[0049] 22, lower sleeve, 23, buffer plate, 24, buffer, 25, sliding ring

[0050] 3, top cover

[0051] 31, upper top cover, 32, lower top cover, 33, storage box, 34, life rope, 35, life rope fixing ring, 36, safety rope, 37, safety rope fixing ring

[0052] 4, escape platform

[0053] 5, refuge chamber

[0054] 6, fire wall DETAILED DESCRIPTION

[0055] The utility model will be explained in detail in combination with the drawings. The drawing is a simplified schematic diagram, and only the basic structure of the utility model is schematically shown, so it only shows the structure related to the utility model.

[0056] Example one:

[0057] As Figures 1-10The utility model relates to a building layered slow -descent self -rescue formula escape cylinder as shown in 14-16, the utility model discloses a building layered slow -descent self -rescue formula escape cylinder, including a plurality of standard section 1 that connects in proper order, the top cover 3 is equipped with in the top layer standard section 1, the bottom buffer 2 is equipped with in the bottom layer standard section 1, the standard section 1 includes fire door 13, connecting mouth 14, enclosure cylinder 12 and damping cylinder 11, and the standard section 1 is set up to each floor of building correspondingly one, according to building height and is equipped with one group or more groups enclosure cylinder 12 and damping cylinder 11 in the standard section 1, fire door 13 is installed fixed on the outer wall of the escape platform 4 or the refuge chamber 5 of building, and the wall body of escape platform 4 or the refuge chamber 5 close to escape cylinder is fire wall 6, connecting mouth 14 is equipped between enclosure cylinder 12 and fire door 13, the damping cylinder 11 is located in the lower side of enclosure cylinder 12, and the enclosure cylinder 12 and damping cylinder 11 of each standard section 1, and the top cover 3 of top layer and the bottom buffer 2 of bottom layer are connected fixed through a plurality of stand 120, the upper opening of damping cylinder 11 is slightly smaller than the lower opening, the upper opening of damping cylinder 11 is connected with the lower opening of enclosure cylinder 12, the lower opening of damping cylinder 11 is connected with the upper opening of enclosure cylinder 12 in the next standard section 1 or is connected with bottom buffer 2, the damping plate 110 for separating the space between adjacent standard section 1 or between the bottom layer standard section 1 and bottom buffer 2 is equipped in the damping cylinder 11, the damping shaft 1102 of rotation connection with damping cylinder 11 is equipped on the damping plate 110, and the damping device for driving damping plate 110 to open and reset slowly when personnel escape is equipped on the damping shaft 1102.

[0058] In the embodiment one, the damping plate 110 includes the damping shaft 1102 and the two composite steel plates 1100 symmetrically arranged on both sides of the damping shaft 1102, the composite steel plate 1100 is provided with the buffer pad 1101, therefore, the damping cylinder 11 is provided with two damping shafts 1102 and four composite steel plates 1100. And the damping cylinder 110 is provided with the damping cylinder enclosure 112 matched with the damping plate 110 on both sides.

[0059] The bottom buffer 2 includes the buffer plate 23, the lower sleeve 22 is arranged on the upper end of the buffer plate 23, the upper sleeve 114 is arranged on the lower end of the damping cylinder 11 of the second floor, the upper sleeve 114 is embedded in the lower sleeve 22, the lower half of the buffer plate 23 is an arc-shaped plate curved away from the building, the buffer plate 23 is arranged away from the ground, the buffer plate 23 is provided with the buffer 24 below, the sliding ring 25 is arranged on the sidewall of the buffer plate 23 and sleeved on the stand 120.

[0060] The top cover 3 comprises an upper top cover 31, a lower top cover 32 and a storage box 33, the top cover 3 is connected with the building wall and stands on the column 120, the lower top cover 32 is installed above the standard section 1 of the top layer, the upper top cover 31 has the storage box 33, the door of the storage box 33 opens to the building roof direction, the storage box 33 stores the lifesaving rope 34 and the safety rope 36, one end of the lifesaving rope 34 is connected with the lifesaving rope fixing ring 35 installed on the upper top cover 31, one end of the safety rope 36 is connected with the safety rope fixing ring 37 installed on the upper top cover 31.

[0061] The fireproof door 13 comprises a fireproof door leaf 130 and a fireproof door frame 131, the fireproof door 13 is fixed on the outer wall of the escape platform 4 or the refuge chamber 5 of the building through the fireproof door frame 131, the handrail 134, the power switch 136 and the sliding door switch 137 are installed on the fireproof door frame 131, the automatic door closer 133 is installed between the fireproof door leaf 130 and the fireproof door frame 131, the fireproof door lock 132 is installed on the fireproof door leaf 130, and the electronic prompt board 135 is installed on the inner wall surface of the escape platform 4 or the refuge chamber 5.

[0062] The enclosure cylinder 12 comprises a track 127, an enclosure plate 121 and a sliding door 125, a plurality of enclosure plates 121 are arranged below the track 127 at intervals, the plurality of enclosure plates 121 are inclined to the axis direction of the enclosure cylinder 12 from top to bottom, the side of the enclosure cylinder 12 close to the fireproof door 13 is provided with an escape opening, the sliding door 125 is arranged at the escape opening, the upper end of the sliding door 125 is provided with a toothed rail 126 which is in sliding cooperation with the track 127, and the track 127 is provided with an electric gear 128 for driving the toothed rail 126 to slide along the track 127.

[0063] The outer side of the enclosure cylinder 12 is provided with a C-shaped first enclosure ring 122 and a C-shaped second enclosure ring 123, the first enclosure ring 122 corresponds to the middle position of the enclosure plate 121, the second enclosure ring 123 corresponds to the bottom position of the enclosure plate 121, and the first enclosure ring 122 and the second enclosure ring 123 are provided with elastic connectors 124 between each enclosure plate 121.

[0064] The damping device comprises an 8-shaped concave-convex wheel 1103 sleeved on the damping shaft 1102, one side of the 8-shaped concave-convex wheel 1103 is provided with a clutch for controlling whether the 8-shaped concave-convex wheel 1103 rotates synchronously with the damping shaft 1102, and the damping cylinder 11 is provided with a plurality of viscous dampers 111 for driving the 8-shaped concave-convex wheel 1103 to be in a horizontal state.

[0065] The clutch comprises a clutch sleeve 1106, a clutch concave cam 1104 and a clutch convex cam 1105, bearings are arranged between the outer side of the clutch sleeve 1106 and the damping cylinder 11, the clutch concave cam 1104 is arranged in the clutch sleeve 1106 and fixedly connected with the clutch sleeve 1106, the 8-shaped concave-convex cam 1103 is arranged on the side of the clutch concave cam 1104 away from the clutch convex cam 1105 and fixedly connected with the clutch concave cam 1104, the 8-shaped concave-convex cam 1103 and the clutch concave cam 1104 are sleeved on the damping shaft 1102 and slidably connected with the damping shaft 1102, the clutch convex cam 1105 is arranged in the clutch sleeve 1106 and fixedly connected with the damping shaft 1102, and one side of the clutch is provided with an electromagnetic control device for driving the clutch convex cam 1105 to approach or move away from the clutch concave cam 1104.

[0066] The electromagnetic control device comprises an electromagnet 1110, a spring 1109 and a magnetic conducting plate 1108, the electromagnet 1110 is fixedly arranged on the damping cylinder 11, the magnetic conducting plate 1108 is sleeved on the end of the damping shaft 1102, a plurality of balls 1107 are arranged between the magnetic conducting plate 1108 and the damping shaft 1102, and the spring 1109 is arranged between the magnetic conducting plate 1108 and the electromagnet 1110.

[0067] A human body sensing probe 119 and an emergency falling switch 118 are arranged at the upper opening of the damping cylinder 11, a damping plate micro switch 117 is arranged on the inner side wall of the damping cylinder 11 and matched with the horizontal state damping plate 110, an electric telescopic brake rod 115 for limiting the opening angle of the damping plate 110 and an electric telescopic anti-pinch rod 116 for ensuring the safety of the escape personnel are arranged on the inner side wall of the damping cylinder 11, and a transparent observation window 113 is arranged on the outer side wall of the damping cylinder 11.

[0068] For the convenience of understanding, the magnetic plate 1108, spring 1109, electromagnet 1110 are set as a group (referred to as group A), and are fixedly connected with the damping cylinder cover 112; the 8-shaped concave-convex wheel 1103, clutch concave wheel 1104, clutch sleeve 1106 are set as a group (referred to as group B), and are rotatably connected with the damping cylinder cover 112 through bearings; the composite steel plate 1100, buffer pad 1101, damping shaft 1102, clutch convex wheel 1105 are set as a group (referred to as group C), and are connected with group B through the damping shaft 1102, and group B and group C can rotate or slide, and group C is connected with the magnetic plate 1108 through the ball 1107 and can rotate. Under normal circumstances, group B and group C are combined together through the clutch concave wheel 1104 and the clutch convex wheel 1105, when the composite steel plate 1100 rotates downward, the 8-shaped concave-convex wheel 1103 can be driven to rotate; when the electromagnet 1110 of group A is powered on, an electromagnetic force is generated to attract the magnetic plate 1108, the magnetic plate 1108 drives group C to separate from group B, at this time, when the composite steel plate 1100 rotates, the 8-shaped concave-convex wheel 1103 will not rotate; after the electromagnet 1110 of group A is powered off, under the elastic force of the spring 1109, the magnetic plate 1108 pushes group C to recombine with group B, and the clutch concave wheel 1104 and the clutch convex wheel 1105 are completely combined together, at this time, the damping plate 110 is automatically restored to the horizontal state.

[0069] Working principle and process:

[0070] In the process of falling, when the gravity is greater than the air resistance, due to the influence of the acceleration of gravity, the falling speed will become faster and faster, and the kinetic energy will also become larger and larger, and the impact force received when falling to the ground will also be larger. Therefore, the key falling speed of the escaping personnel should be controlled within a safe range when falling to the ground, so as not to be injured or die.

[0071] The utility model discloses a layered damping buffering mode controls the falling speed of the escaping personnel, makes the falling speed of the escaping personnel when falling to the next layer all control in the safe range, until the escaping personnel slowly descend to the ground. The relevant provisions show that the operation above 2 meters needs to adopt protection, that is to say, it is basically safe to jump from 2 meters high without buffering, the speed when falling to the ground is about 6.3 m / s, under the condition of damping buffering, this height can be increased appropriately, with reference to the general floor height of civil building, the spacing between the adjacent damping cylinders 11 of the utility model is not more than 3.6 meters, when the floor height is more than 3.6 meters, corresponding additional height is added according to the height, and the spacing between the adjacent damping cylinders 11 is not less than 1.8 meters, to facilitate the personnel to enter when escaping. Starting from 0 m / s speed, the speed of the escaping personnel when falling from 3.6 meters to the next layer is about 8.4 m / s, the main role of the damping equipment in the damping cylinder 11 is to reduce the speed of 8.4 m / s to approximate 0 m / s, and then release to the next layer, through the buffering of the damping cylinder 11 and the bottom buffer 2 of each layer, the falling speed of the escaping personnel when falling to the ground is not more than 6.3 m / s, to ensure the safety of the escaping personnel.

[0072] When the fire and other disasters endanger life, the escaping personnel should first escape to the temporary safe escape platform 4 or refuge chamber 5, when the external rescue cannot arrive in time or is insufficient, the escaping personnel can use the building layered slow descent self-help escape cylinder for self-rescue. First, remove the sharp objects on the body, open the fire door lock 132 (with a child lock function) from the inside of the escape platform 4 or refuge chamber 5, open the fire door leaf 130, at this time, the external power supply can have been cut off, the building layered slow descent self-help escape cylinder is powered by the storage battery, the power switch 136 is automatically opened, the prompt sign (the normal prompt sign displays the green "escape" word, the upper layer displays the orange "temporary entry" word when there is personnel escaping, and the lower layer displays the red "prohibition of use" word when there is a fault) on the inside edge of the fire door frame 131 is observed, when the state of the layer and other layers is normal, the handrail 134 is grasped to enter the fire door 13, the sliding door switch 137 on the fire door frame 131 is pressed, the electric gear 128 rotates, the sliding door 125 is opened along the rail 127 by the toothed rail 126, after the sliding door 125 is opened, the escaping personnel crouches through the connecting port 14, the sliding door 125 jumps into the enclosure cylinder 12, the fire door leaf 130 is automatically closed under the action of the automatic door closer 133, the power switch 136 is pressed by the fire door leaf 130 and enters the system power delay automatic closing state (can be set according to the requirement, not less than 30 minutes).

[0073] The enclosure cylinder 12 is large at the upper opening and small at the lower opening, the periphery is half-opened and closed by a plurality of vertical direction slightly inclined enclosure plates 121, and the inclined enclosure plates 121 and the elastic connector 124 can provide a certain buffering effect for the falling escaping personnel, and slow down the falling speed.

[0074] After the escape personnel enter the containment cylinder 12, they fall into the damping cylinder 11 through the upper opening of the damping cylinder 11. When the human body inductive probe head 119 senses the human body, the electric telescopic anti-pinch rod 116 of the layer extends. The buffer pad 1101 on the damping plate 110 first provides a certain buffer, and then the damping plate 110 starts to rotate about 60 degrees under the impact force of the falling escape personnel. The impact force is transmitted to the plurality of viscous dampers 111 through the composite steel plate 1100, the damping shaft 1102, and the 8-shaped concave-convex wheel 1103 in turn. The viscous dampers 111 have the characteristic that the greater the speed, the greater the damping force. Under the action of the plurality of viscous dampers 111, when the damping force offsets the impact force and the falling speed of the escape personnel approaches 0, the viscous dampers 111 continue to retract under the influence of the self-gravity of the escape personnel (the self-weight of the escape personnel should be no less than a certain value, such as 30 kg, otherwise please do not use this building layered slow descent self-rescue escape cylinder, or hold a heavy object to increase weight to escape, so as to prevent the weight from being too light to compress the viscous dampers 111, thereby preventing falling). The damping plate 110 rotates to the vertical direction, and the escape personnel falls to the next layer of standard section 1. When the human body inductive probe head 119 of the layer does not sense the human body, the electric telescopic anti-pinch rod 116 retracts.

[0075] The viscous dampers 111 automatically rebound in the absence of force, and the rebound force acts on the 8-shaped concave-convex wheel 1103. When the damping plate 110 is not in a horizontal state, the damping plate 110 is driven to continue rotating until it is in a horizontal state. At this time, the 8-shaped concave-convex wheel 1103 is subjected to the smallest force of the viscous dampers 111, and the other half of the buffer pad 1101 faces upward after the damping plate 110 rotates by 180 degrees. When the damping plate 110 is not in a horizontal state and is rotating, the damping plate microswitch 117 is turned on, and the electronic sign 135 on the fire door 13 of each floor gives red warning information corresponding to the floor until the damping plate 110 returns to the horizontal state. After the damping plate 110 returns to the horizontal state, the damping plate microswitch 117 is turned off, and the electronic sign 135 gives green normal information. When the escape personnel enter the damping cylinder 11, the human body inductive probe head 119 installed in the damping cylinder 11 detects it, and the electronic sign 135 on the fire door 13 of each floor also gives corresponding red warning information until the escape personnel leave the damping cylinder 11 of the layer and enter the next layer of standard section 1. The electronic sign 135 gives green normal information, and the electric telescopic anti-pinch rod 116 on the damping cylinder 11 of the layer retracts. The sliding door 125 on the containment cylinder 12 of the layer automatically closes.

[0076] After the damping buffering effect of the damping cylinder 11 of the standard section 1, the escape personnel falls to the bottom buffer 2, and the buffer 24 under the buffer plate 23 of the bottom buffer 2 plays a buffering role, and the 1 / 4 circular shape of the lower part of the buffer plate 23 can make the escape personnel change from the vertical falling direction to the horizontal direction, until it falls to the ground, further ensuring the safety of the escape personnel.

[0077] To prevent personnel damage and climbing, the surrounding of the bottom buffer 2 is provided with a protective rail without affecting rescue.

[0078] The building layered slow descent self-rescue cylinder is suitable for situations where time is tight, rescue is not available, or rescue force is not sufficient, and can escape multiple floors and multiple personnel at the same time. It is suitable for fire escape and self-rescue in places with high personnel density such as shopping malls, theaters, and collective dormitories. It does not require full-time fire rescue personnel on standby, does not require special fire roads and large fire climbing sites, is not limited by building height, and is suitable for fire renovation in old areas and old houses where fire climbing vehicles cannot pass.

[0079] Special situation handling:

[0080] I. When the damping plate 110 of a certain damping cylinder 11 does not work or only partially works, causing the escape personnel to fall too fast, by comparing the departure time detected by the human body sensing probe 119 in the damping cylinder 11 with the arrival time detected by the human body sensing probe 119 in the damping cylinder 11 below, if the difference is less than 0.857 seconds, it means that the escape personnel did not start falling at approximately 0 speed when passing through the damping cylinder 11. At this time, the electric telescopic brake lever 115 in the damping cylinder 11 below immediately acts under the instruction of the information processing circuit, automatically extends the electric telescopic brake lever 115, prevents the rotation of the damping plate 110, and makes the opening between the two damping plates 110 not more than 25 cm, thereby preventing the escape personnel from falling, and after a few seconds of delay, the electric telescopic brake lever 115 automatically retracts, allowing the escape personnel to continue falling at approximately 0 speed.

[0081] II. When the damping plate 110 of a certain damping cylinder 11 fails and the escape personnel cannot fall, the following emergency treatment methods are available:

[0082] 1. When self-rescue is the only option, the escapee can press the emergency fall switch 118 on the upper side of the damping cylinder 11 to connect the power supply to the electromagnet 1110. The electromagnet 1110 generates a magnetic force to attract the magnetic guide plate 1108. The magnetic guide plate 1108 drives the damping shaft 1102 to slide with the composite steel plate 1100. The clutch concave wheel 1104 separates from the clutch cam 1105, and the composite steel plate 1100 can rotate freely, allowing the escapee to continue falling. At the same time, the emergency fall switch 118 is in a delayed closing state, and the corresponding damping plate micro switch 117 is in the on state. When the damping plate micro switch 117 is closed due to prolonged non-pressure from the composite steel plate 1100, the corresponding indicator light on the electronic warning sign 135 on each floor is in a red warning state and displays the words "Do Not Use" in red.

[0083] 2. If there is no fire on the corresponding floor, firefighters or the owner of the floor can open the fire door 13 of the corresponding floor, press the sliding door switch 137 to open the sliding door 125, and rescue the trapped people.

[0084] 3. Firefighters go up to the roof, open the storage box 33 of the roof cover 3, take out the rescue rope 34 and the safety rope 36, check whether the rescue rope 34 and the safety rope 36 are intact, and check the connection between the rescue rope 34 and the safety rope 36 and the rescue rope fixing ring 35 and the safety rope fixing ring 37. After confirming that everything is normal, put on the rescue rope 34 and the safety rope 36, descend to the damping cylinder 11 of the floor where the escapee is trapped, unscrew the fixing bolt on the observation window 113, open the observation window 113 and rescue the trapped escapee.

[0085] Example 2:

[0086] like Figures 11-13 As shown, the difference between this embodiment and Embodiment 1 is that...

[0087] The damping device includes a heart-shaped concave cam 1115 sleeved on the damping shaft 1102, and a clutch is provided on one side of the heart-shaped concave cam 1115 for controlling whether the heart-shaped concave cam 1115 rotates synchronously with the damping shaft 1102.

[0088] The clutch comprises a clutch concave cam 1104, a clutch convex cam 1105 and a gear clutch sleeve 1114, the gear clutch sleeve 1114 is fixedly connected with the love-shaped concave-convex cam 1115 on one side of the love-shaped concave-convex cam 1115, an oval-shaped sliding block 1112 is arranged on the side of the gear clutch sleeve 1114 away from the love-shaped concave-convex cam 1115 and is rotatably connected with the gear clutch sleeve 1114, a motor gear 1113 is arranged on the oval-shaped sliding block 1112 and is used to drive the rotation of the gear clutch sleeve 1114, an oval-shaped sliding rail 1111 is arranged on the inner wall of the damping cylinder 11 and is slidably connected with the oval-shaped sliding block 1112, the clutch concave cam 1104 is arranged in the gear clutch sleeve 1114 and is fixedly connected with the gear clutch sleeve 1114, the love-shaped concave-convex cam 1115 and the clutch concave cam 1104 are sleeved on the damping shaft 1102 and are slidably connected with the damping shaft 1102, the clutch convex cam 1105 is arranged in the gear clutch sleeve 1114 and is fixedly connected with the damping shaft 1102, and an electromagnetic control device is arranged on one side of the clutch and is used to drive the clutch convex cam 1105 to move close to or away from the clutch concave cam 1104.

[0089] The electromagnetic control device comprises an electromagnet 1110, a spring 1109 and a magnetic conducting plate 1108, the electromagnet 1110 is fixedly connected with the oval-shaped sliding block 1112, the magnetic conducting plate 1108 is sleeved on the end of the damping shaft 1102, a plurality of balls 1107 are arranged between the magnetic conducting plate 1108 and the damping shaft 1102, and the spring 1109 is arranged between the magnetic conducting plate 1108 and the electromagnet 1110.

[0090] The damping cylinder 11 is arranged below the oval-shaped sliding rail 1111 and is provided with a viscous damper 111 which is matched with the love-shaped concave-convex cam 1115.

[0091] A human body sensing probe 119 and an emergency falling switch 118 are arranged at the upper opening of the damping cylinder 11, the bottom of the oval-shaped sliding rail 1111 is provided with a damping plate micro switch 117 which is matched with a horizontal state damping plate 110, an electric telescopic brake lever 115 is arranged on the inner side wall of the damping cylinder 11 and is used to limit the opening angle of the damping plate 110, and a transparent observation window 113 is arranged on the outer side wall of the damping cylinder 11 and is convenient for disassembly.

[0092] The enclosure cylinder 12 in the second embodiment cancels the first enclosure ring 122, the second enclosure ring 123 and the elastic connector 124, is more simple and saves cost.

[0093] In the damping plate 110 of the second embodiment, there is only one composite steel plate 1100 on the damping shaft 1102, and there are only two damping shafts 1102 and two composite steel plates 1100 in the damping cylinder 11. The damping cylinder 11 cancels the damping cylinder enclosure 112, and the volume is reduced. An oval slide rail 1111 is additionally arranged on the side wall of the damping cylinder 11. The damping plate 110 no longer adopts a 360-degree rotation type, but adopts a 90-degree reciprocating rotation type. An oval slide block 1112, a motor gear 1113 (or a delay damper is used instead), and a gear type clutch sleeve 1114 are additionally arranged thereon. The oval slide block 1112 is arranged at both ends of each damping shaft 1102, and is installed in the oval slide rail 1111. The oval slide block 1112 can only slide in the up-down direction, and the damping shaft 1102 can rotate and slide in the oval slide block 1112. The oval slide block 1112 close to the observation window 113 is additionally provided with the motor gear 1113, which is engaged with the gear type clutch sleeve 1114, so as to make the damping plate 110 rotate to the horizontal or vertical downward direction. By default, the damping plate 110 is in the horizontal state.

[0094] When the escape personnel falls into the damping cylinder 11 from the enclosure cylinder 12, the damping plate 110 is in the horizontal state and at the highest end, and the motor gear 1113 is temporarily not in action. Under the action of the falling impact force of the escape personnel, the damping plate 110 keeps horizontal and slides downward along the oval slide rail 1111. The damping plate micro switch 117 is turned on. At this time, the viscous damper 111 installed below the damping plate 110 starts to provide damping force. When the damping force offsets the falling impact force and the falling speed of the escape personnel is approximately 0, the motor gear 1113 rotates for 2 to 3 seconds in delay, drives the gear type clutch sleeve 1114, and makes the composite steel plate 1100 of the damping plate 110 rotate to the vertical direction, so as to release the escape personnel to the next standard section 1.

[0095] After the human body sensing probe 119 in the damping cylinder 11 cannot detect human body information, the motor gear 1113 reverses, so that the composite steel plate 1100 rotates from the vertical direction to the horizontal direction. Meanwhile, the viscous damper 111 rebounds, so that the damping plate 110 rises to the highest end, and continues to prepare for the escape of the upper escape personnel.

[0096] When the time difference of the human body sensing probe 119 in the adjacent two damping cylinders 11 detecting the human body is less than 0.857 seconds, the motor gear 1113 in the next damping cylinder 11 increases the delay time by 2 seconds, and rotates for a total of 4 to 5 seconds in delay, so as to ensure that the falling speed of the escape personnel from each damping cylinder 11 is approximately 0.

[0097] The directions and references (e.g., up, down, left, right, etc.) in the present utility model can be used only to help describe the features in the drawings. Therefore, the following detailed description is not used in a limiting sense, and the scope of the claimed subject matter is defined only by the appended claims and their equivalents.

[0098] The above is the ideal embodiment according to the utility model, and the related staff can make various changes and modifications without deviating from the scope of the utility model according to the above description. The technical scope of the utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of claims.

Claims

1. A building-level, slow-descent self-rescue escape tube, characterized in that: The building comprises multiple standard sections (1) connected in sequence. The top standard section (1) is equipped with a top cover (3), and the bottom standard section (1) is equipped with a bottom buffer (2). Each standard section (1) includes a fire door (13), a connection port (14), an enclosure tube (12), and a damping tube (11). Each floor of the building is equipped with one standard section (1). The standard section (1) is equipped with one or more sets of enclosure tubes (12) and damping tubes (11) according to the building height. The fire door (13) is installed and fixed on the outer wall of the escape platform (4) or refuge room (5) of the building. There is a connection port (14) between the enclosure tube (12) and the fire door (13). The damping tube (11) is located on the lower side of the enclosure tube (12). The enclosure tubes (12) and damping tubes (11) of each standard section (1) and the top of the top floor are also included. The cover (3) and the bottom buffer (2) are both connected and fixed by multiple columns (120). The upper opening of the damping cylinder (11) is slightly smaller than the lower opening. The upper opening of the damping cylinder (11) is connected to the lower opening of the enclosure cylinder (12). The lower opening of the damping cylinder (11) is connected to the upper opening of the enclosure cylinder (12) in the next standard section (1) or to the bottom buffer (2). The damping cylinder (11) is provided with a damping plate (110) for separating the space between adjacent standard sections (1) or between the lowest standard section (1) and the bottom buffer (2). The damping plate (110) is provided with a damping shaft (1102) rotatably connected to the damping cylinder (11). The damping shaft (1102) is provided with a damping device for driving the damping plate (110) to open and reset slowly when personnel escape.

2. The building-level tiered slow-descent self-rescue escape tube as described in claim 1, characterized in that: The bottom buffer (2) includes a buffer plate (23), the upper end of the buffer plate (23) is provided with a lower sleeve (22), the lower end of the damping cylinder (11) on the second floor is provided with an upper sleeve (114), the upper sleeve (114) is embedded in the lower sleeve (22), the lower half of the buffer plate (23) is an arc plate that bends away from the building, the buffer plate (23) is set off from the ground, a buffer (24) is provided below the buffer plate (23), and a sliding ring (25) is provided on the side wall of the buffer plate (23) and fitted on the column (120).

3. The building-level slow-descent self-rescue escape tube as described in claim 1, characterized in that: The top cover (3) includes an upper top cover (31), a lower top cover (32) and a storage box (33). One end of the top cover (3) is connected to the building wall and is erected on the column (120). The lower top cover (32) is installed above the standard section (1) of the top floor. The upper top cover (31) contains a storage box (33). The door of the storage box (33) opens towards the roof of the building. The storage box (33) contains a lifeline (34) and a safety rope (36). One end of the lifeline (34) is connected to a lifeline fixing ring (35) installed on the upper top cover (31). One end of the safety rope (36) is connected to a safety rope fixing ring (37) installed on the upper top cover (31).

4. The building-level tiered slow-descent self-rescue escape cylinder as described in claim 1, characterized in that: The fire door (13) includes a fire door leaf (130) and a fire door frame (131). The fire door (13) is fixed to the outer wall of the escape platform (4) or refuge room (5) of the building through the fire door frame (131). The fire door frame (131) is equipped with a handrail (134), a power switch (136) and a sliding door switch (137). An automatic door closer (133) is installed between the fire door leaf (130) and the fire door frame (131). A fire door lock (132) is installed on the fire door leaf (130). An electronic sign (135) is installed on the inner wall of the escape platform (4) or refuge room (5).

5. A building-level tiered slow-descent self-rescue escape cylinder as described in claim 1, characterized in that: The enclosure tube (12) includes a track (127), enclosure panels (121) and a sliding door (125). Multiple enclosure panels (121) are spaced apart below the track (127). The multiple enclosure panels (121) are inclined from top to bottom towards the axis of the enclosure tube (12). An escape hatch is provided on the side of the enclosure tube (12) near the fire door (13). A sliding door (125) is provided at the escape hatch. A toothed rail (126) is provided at the upper end of the sliding door (125) and slides with the track (127). An electric gear (128) is provided on the track (127) to drive the toothed rail (126) to slide along the track (127).

6. A building-level tiered slow-descent self-rescue escape cylinder as described in claim 5, characterized in that: The outer side of the enclosure tube (12) is provided with a C-shaped first enclosure ring (122) and a second enclosure ring (123). The first enclosure ring (122) corresponds to the middle position of the enclosure plate (121), and the second enclosure ring (123) corresponds to the bottom position of the enclosure plate (121). An elastic connector (124) is provided between the first enclosure ring (122) and the second enclosure ring (123) and each enclosure plate (121).

7. A building-level tiered slow-descent self-rescue escape cylinder as described in any one of claims 1-6, characterized in that: The damping device includes a figure-eight concave cam (1103) sleeved on the damping shaft (1102). A clutch is provided on one side of the figure-eight concave cam (1103) for controlling whether the figure-eight concave cam (1103) rotates synchronously with the damping shaft (1102). A plurality of viscous dampers (111) are provided inside the damping cylinder (11) for driving the figure-eight concave cam (1103) to be in a horizontal state. The clutch includes a clutch sleeve (1106), a clutch concave wheel (1104), and a clutch cam (1105). A bearing is provided between the outer side of the clutch sleeve (1106) and the damping cylinder (11). The clutch concave wheel (1104) is located inside the clutch sleeve (1106) and fixedly connected to the clutch sleeve (1106). The figure-eight shaped concave cam (1103) is located on the side of the clutch concave wheel (1104) away from the clutch cam (1105) and is connected to the clutch cam (1105). The clutch concave wheel (1104) is fixedly connected. The figure-eight concave cam (1103) and the clutch concave wheel (1104) are both sleeved on the damping shaft (1102) and slidably engaged with the damping shaft (1102). The clutch cam (1105) is located in the clutch sleeve (1106) and is fixedly connected to the damping shaft (1102). An electromagnetic control device is provided on one side of the clutch for driving the clutch cam (1105) to approach or move away from the clutch concave wheel (1104). The electromagnetic control device includes an electromagnet (1110), a spring (1109), and a magnetic plate (1108). The electromagnet (1110) is fixed on the damping cylinder (11), and the magnetic plate (1108) is sleeved on the end of the damping shaft (1102). A plurality of balls (1107) are provided between the magnetic plate (1108) and the damping shaft (1102), and the spring (1109) is provided between the magnetic plate (1108) and the electromagnet (1110).

8. A building-level tiered slow-descent self-rescue escape cylinder as described in claim 7, characterized in that: The damping cylinder (11) is provided with a human body induction detector (119) and an emergency drop switch (118) at the upper opening. The damping cylinder (11) is provided with a damping plate micro switch (117) that cooperates with the horizontal state damping plate (110) on the inner side wall. The damping cylinder (11) is provided with an electric telescopic brake rod (115) and an electric telescopic anti-pinch rod (116) for limiting the opening angle of the damping plate (110) on the inner side wall. The damping cylinder (11) is provided with a transparent observation window (113) that is easy to disassemble on the outer side wall.

9. A building-level tiered slow-descent self-rescue escape cylinder as described in any one of claims 1-6, characterized in that: The damping device includes a heart-shaped concave cam (1115) sleeved on the damping shaft (1102), and a clutch is provided on one side of the heart-shaped concave cam (1115) for controlling whether the heart-shaped concave cam (1115) rotates synchronously with the damping shaft (1102); The clutch includes a clutch concave wheel (1104), a clutch cam (1105), and a gear clutch sleeve (1114). The gear clutch sleeve (1114) is located on one side of the heart-shaped concave cam (1115) and is fixedly connected to the heart-shaped concave cam (1115). On the side of the gear clutch sleeve (1114) away from the heart-shaped concave cam (1115), there is an elliptical slider (1112) that is rotatably connected to the gear clutch sleeve (1114). The elliptical slider (1112) is provided with a motor gear (1113) for driving the gear clutch sleeve (1114) to rotate. The inner wall of the damping cylinder (11) is provided with a gear that is connected to the elliptical slider (1114). The circular slider (1112) is slidably engaged with the elliptical slide rail (1111). The clutch concave wheel (1104) is disposed inside the gear clutch sleeve (1114) and is fixedly connected to the gear clutch sleeve (1114). The heart-shaped concave cam (1115) and the clutch concave wheel (1104) are both sleeved on the damping shaft (1102) and are slidably engaged with the damping shaft (1102). The clutch cam (1105) is disposed inside the gear clutch sleeve (1114) and is fixedly connected to the damping shaft (1102). An electromagnetic control device is provided on one side of the clutch for driving the clutch cam (1105) to approach or move away from the clutch concave wheel (1104). The electromagnetic control device includes an electromagnet (1110), a spring (1109), and a magnetic guide plate (1108). The electromagnet (1110) is fixedly connected to the elliptical slider (1112). The magnetic guide plate (1108) is sleeved on the end of the damping shaft (1102). A plurality of balls (1107) are provided between the magnetic guide plate (1108) and the damping shaft (1102). The spring (1109) is provided between the magnetic guide plate (1108) and the electromagnet (1110). The damping cylinder (11) is located below the elliptical slide rail (1111) and has a viscous damper (111) that cooperates with the heart-shaped concave cam (1115).

10. A building-level tiered slow-descent self-rescue escape tube as described in claim 9, characterized in that: The damping cylinder (11) is provided with a human body induction detector (119) and an emergency drop switch (118) at the upper opening. The bottom of the elliptical slide rail (1111) is provided with a damping plate micro switch (117) that cooperates with the horizontal state damping plate (110). The inner wall of the damping cylinder (11) is provided with an electric telescopic brake rod (115) for limiting the opening angle of the damping plate (110). The outer wall of the damping cylinder (11) is provided with a transparent observation window (113) that is easy to disassemble.

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