阅读说明：本技术 护栏及导流疏散系统 (Guardrail and water conservancy diversion evacuation system ) 是由 刘永生 于 2020-05-29 设计创作，主要内容包括：本公开涉及一种护栏及导流疏散系统。该护栏包括固定部(10)、活动部(20)、以及电控驱动装置,所述固定部(10)用于预埋至地面(500)以下,所述活动部(20)可移动地连接于所述固定部(10),所述电控驱动装置用于驱动所述活动部(20)在所述固定部(10)上移动,以使所述活动部(20)伸出所述地面(500)或缩回至所述地面(500)以下,且所述护栏(100)具有紧急缩回模式,在所述紧急缩回模式,所述活动部(20)以自由落体方式下落。该护栏能够起到导流作用且利于人群的疏散。(The present disclosure relates to a guardrail and a diversion evacuation system. This guardrail includes fixed part (10), movable part (20) and automatically controlled drive arrangement, fixed part (10) are used for pre-buried below to ground (500), movable part (20) movably connect in fixed part (10), automatically controlled drive arrangement is used for the drive movable part (20) are in move on fixed part (10), so that movable part (20) stretch out ground (500) or retract below ground (500), just guardrail (100) have urgent withdrawal mode, movable part (20) fall with the free fall mode. This guardrail can play the water conservancy diversion effect and do benefit to crowd's sparse.)

1. The guardrail is characterized by comprising a fixed part (10), a movable part (20) and an electric control driving device, wherein the fixed part (10) is used for being embedded below the ground (500), the movable part (20) is movably connected to the fixed part (10), the electric control driving device is used for driving the movable part (20) to move on the fixed part (10) so that the movable part (20) stretches out of the ground (500) or retracts to the position below the ground (500), and the guardrail (100) has an emergency retraction mode in which the movable part (20) falls in a free-fall mode.

2. The guardrail according to claim 1, characterized in that the electrically controlled driving device comprises a controller (31), a motor (32) and a rotating rod (33), wherein the rotating rod (33) is arranged along a vertical direction and is in transmission connection with the motor (32) so that the rotating rod (33) can rotate along the axis of the rotating rod, a nut (21) is arranged on the movable part (20), the rotating rod (33) and the nut (21) are constructed into a screw and nut mechanism, the controller (31) is used for controlling the motor (32) to rotate, and the nut (21) is a split nut which can be detachably matched with the rotating rod (33).

3. The guardrail of claim 2, wherein the electrically controlled drive means further comprises a first electromagnetic member (41), a second electromagnetic member (42), a first mating member (51), and a second mating member (52),

the first electromagnetic part (41) is arranged on the movable part (20), the first electromagnetic rod (411) of the first electromagnetic part (41) can be close to or far away from the rotating rod (33) along the horizontal direction, the first matching piece (51) is arranged at the end part of the first electromagnetic rod (411) close to the rotating rod (33),

the second electromagnetic part (42) is arranged at the movable part (20) and is respectively positioned at two opposite sides of the rotating rod (33) with the first electromagnetic part (41), the second electromagnetic rod (421) of the second electromagnetic part (42) can be close to or far away from the rotating rod (33) along the horizontal direction, the second matching piece (52) is arranged at the end part of the second electromagnetic rod (421) close to the rotating rod (33),

first fitting piece (51) are close to the terminal surface of dwang (33) is provided with first internal thread hole, second fitting piece (52) are close to the terminal surface of dwang (33) is provided with the interior screw hole of second, first fitting piece (51) with second fitting piece (52) can inject jointly nut (21).

4. The guardrail according to claim 3, characterized in that the electrically controlled driving means further comprises a first elastic restoring member (61) and a second elastic restoring member (62), the first elastic restoring member (61) having one end connected to the first electromagnetic lever (411) and the other end connected to the movable portion (20) to apply an elastic force to the first electromagnetic lever (411) to move it in a direction away from the rotation lever (33),

one end of the second elastic reset piece (61) is connected with the second electromagnetic rod (421), and the other end of the second elastic reset piece is connected with the movable part (20) so as to apply elastic force to the second electromagnetic rod (421) to enable the second electromagnetic rod to move towards the direction away from the rotating rod (33).

5. The guardrail of claim 1, characterized in that the guardrail (100) further comprises a cushioning structure (70) arranged between the movable part (20) and the fixed part (10), the cushioning structure (70) being adapted to cushion the movable part (20) when the movable part (20) is moved downwards.

6. The guardrail of claim 5, wherein the cushioning structure (70) comprises a damper (71) and a contact member (72), the damper (71) being mounted to the fixed part (10), the contact member (72) having a first end (721) opposite to the first end (721), a second end (722), and a contact portion (723) between the first end (721) and the second end (722), the first end (721) being hinged to the fixed part (10), the second end (722) being connected to a piston rod (711) of the damper (71),

the movable portion (20) presses the contact portion (723) during the downward movement to cause the second end (722) to move the piston rod (711) within the damper (71).

7. The guardrail according to any of the claims 1-6, characterized in that the fixed part (10) is provided with a guide rail (11) arranged in a vertical direction, the movable part (20) being a sliding fit on the guide rail (11).

8. The guardrail according to any of the claims 1-6, characterized in that a position sensor is arranged on the guardrail (100) to detect the position of the movable part (20) in the vertical direction on the fixed part (10).

9. A deflector evacuation system, characterized in that it comprises a control unit (200) and a guardrail (100) according to any one of claims 1-8, the control unit (200) being electrically connected to electrically controlled drive means of the guardrail (100) for controlling the movement of the movable part (20) on the fixed part (10).

10. Diversion evacuation system according to claim 9, characterized in that the control unit (200) comprises a first processor (210), a switch (230) and a terminal (240), the first processor (210) or the terminal (240) being in communication connection with the electrically controlled drive means via the switch (230), and the first processor (210) or the terminal (240) being in communication connection with a fire alarm system FAS or a broadcast system PA.

11. Diversion evacuation system according to claim 10, characterized in that said control unit (200) further comprises a second processor (220), said second processor (220) being communicatively connected with said switch (220) and said electrically controlled driving means of said guardrail (100) respectively, and said second processor (220) being communicatively connected with said fire alarm system FAS or said broadcast system PA.

12. A guided evacuation system according to claim 9, further comprising an alarm (250), said alarm (250) being communicatively connected to said control unit (200).

13. Deflector evacuation system according to any of claims 9-12, further comprising a cover plate (300) and an angular stop structure (400), the cover plate (300) being adapted to cover an opening (510) provided in the ground (500) for the passage of the mobile part (20) when the mobile part (20) is retracted to the ground (500),

the angle limiting structure (400) is used for limiting the opening angle of the cover plate (300) so that the opening angle of the cover plate (300) is smaller than 90 degrees.

Technical Field

The present disclosure relates to the field of flow guiding devices, and more particularly, to a guardrail and a flow guiding evacuation system.

Background

People are used as the main body of social activities, and various meetings and various people gathering caused by the meetings cannot be avoided in the social activities, so that people diversion and diversion are indispensable in some occasions.

In the prior art, a semi-closed (or semi-open) site is generally installed and fixed on the ground by using a stainless steel fence 600 as shown in fig. 1 and 2. Due to firm installation, the evacuation channel cannot be formed by breaking the evacuation channel by hand in a short time. When an emergency occurs, people cannot be evacuated quickly, and foreseeable risks such as treading of people may be caused.

Disclosure of Invention

The utility model aims at providing a guardrail and water conservancy diversion evacuation system, this guardrail can play the water conservancy diversion effect and do benefit to crowd's evacuation.

In order to achieve the above object, the present disclosure provides a guardrail including a fixing portion, a movable portion and an electric control driving device, the fixing portion is used for being pre-buried to the ground, the movable portion is movably connected to the fixing portion, the electric control driving device is used for driving the movable portion to move on the fixing portion, so that the movable portion extends out of the ground or retracts into the ground, and the guardrail has an emergency retraction mode in which the movable portion falls in a free-fall manner.

Optionally, automatically controlled drive arrangement includes controller, motor and dwang, the dwang along vertical direction arrange and with motor drive connects, so that the dwang can be followed the axis rotation of self, be provided with the nut on the movable part, the dwang with the nut constructs into lead screw nut mechanism, the controller is used for the control motor to rotate, the nut is split type nut, can liftably with the dwang cooperation.

Optionally, the electric control driving device further comprises a first electromagnetic part, a second electromagnetic part, a first fitting part and a second fitting part, wherein the first electromagnetic part is installed at the movable part, the first electromagnetic rod of the first electromagnetic part can be close to or far away from the rotating rod along the horizontal direction, the first fitting part is arranged at the end part of the rotating rod close to the first electromagnetic rod, the second electromagnetic part is installed at the movable part and is respectively positioned at the two opposite sides of the rotating rod together with the first electromagnetic part, the second electromagnetic rod of the second electromagnetic part can be close to or far away from the rotating rod along the horizontal direction, the second fitting part is arranged at the end part of the rotating rod close to the second electromagnetic rod, the end surface of the rotating rod close to the first fitting part is provided with a first internal threaded hole, and the end surface of the rotating rod close to the second fitting part is provided with a second internal threaded hole, the first and second mating members can collectively define the nut.

Optionally, the electronic control driving device further comprises a first elastic resetting piece and a second elastic resetting piece, one end of the first elastic resetting piece is connected with the first electromagnetic rod, the other end of the first elastic resetting piece is connected with the movable portion, so that the first electromagnetic rod is applied with an elastic force which enables the first electromagnetic rod to move towards the direction away from the rotating rod, one end of the second elastic resetting piece is connected with the second electromagnetic rod, and the other end of the second elastic resetting piece is connected with the movable portion, so that the second electromagnetic rod is applied with an elastic force which enables the second electromagnetic rod to move towards the direction away from the rotating rod.

Optionally, the guardrail further comprises a buffer structure arranged between the movable part and the fixed part, and the buffer structure is used for buffering the movable part when the movable part moves downwards.

Optionally, the buffer structure includes a damper and a contact member, the damper is mounted on the fixed portion, the contact member has a first end, a second end opposite to each other, and a contact portion located between the first end and the second end, the first end is hinged to the fixed portion, the second end is connected to a piston rod of the damper, and the movable portion presses the contact portion in the downward movement process, so that the second end drives the piston rod to move in the damper.

Optionally, the fixed part is provided with a guide rail arranged along a vertical direction, and the movable part is slidably fitted on the guide rail.

Optionally, a position sensor is provided on the guard rail to detect a position of the movable part on the fixed part in a vertical direction.

According to another aspect of the present disclosure, a diversion evacuation system is provided, which includes a control unit and the above-mentioned guardrail, wherein the control unit is electrically connected with the electrically controlled driving device of the guardrail to control the movable part to move on the fixed part.

Optionally, the control unit includes a first processor, a switch, and a terminal, the first processor or the terminal is connected to the electric control driving device through the switch, and the first processor or the terminal is connected to a fire alarm system FAS or a broadcast system PA.

Optionally, the control unit further comprises a second processor, the second processor is in communication connection with the switch and the electrically controlled driving device of the guardrail respectively, and the second processor is in communication connection with the fire alarm system FAS or the broadcast system PA.

Optionally, the guided evacuation system further comprises an alarm, and the alarm is in communication connection with the control unit.

Optionally, the diversion evacuation system further includes a cover plate and an angle limiting structure, the cover plate is used for covering the opening provided on the ground for the movable part to pass through when the movable part retracts to the ground, and the angle limiting structure is used for limiting the opening angle of the cover plate, so that the opening angle of the cover plate is smaller than 90 °.

Through above-mentioned technical scheme, because the movable part can stretch out ground and retract to the below ground, when being applied to semi-closed (semi-open) place with the guardrail, can stretch out the movable part, the movable part is in the state of stretching, plays ordinary guardrail's effect. When an emergency happens, the movable part can be retracted to the ground, and the movable part is in the retracted position to form an escape channel, so that a large number of people can be evacuated in time, and the people can be prevented from trampling.

In addition, because the guardrail has the emergency retraction mode, in an emergency situation, the movable part falls in a free-falling body mode, the movable part can be retracted to the ground surface quickly, an escape channel can be constructed timely and reliably as far as possible, and the situation that the movable part cannot be retracted normally due to faults such as the benefit of a driving mechanism is avoided.

Moreover, compare rail among the prior art, the guardrail that this disclosure provided still has following advantage at least:

first, the rail of prior art is a simple product, can not intelligent control. And this disclosed guardrail is owing to be provided with automatically controlled drive arrangement, when needs retract the guardrail, can adopt automatically controlled mode drive movable part to retract, this just provides the condition for adopting remote control or controlling the retraction of movable part in advance, and intelligent degree is higher.

Secondly, the prior art has no traffic capacity in emergency, and has the possibility of occurrence of gathering injury accidents. When an emergency occurs, the guardrail can be in communication connection with a fire Alarm system FAS (fire Alarm system) and a broadcasting system PA (public address system), the guardrail can be controlled to retract when the escaping personnel do not arrive, and meanwhile, the broadcasting system sends out prompt tones to remind passengers, so that a large number of personnel can be evacuated in time.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIGS. 1 and 2 are schematic structural views of a prior art enclosure;

FIG. 3 is a schematic front view of a guardrail of one embodiment of the present disclosure with the movable portion of the guardrail in a retracted position;

FIG. 4 is a schematic side view of a guardrail of one embodiment of the present disclosure with the movable portion of the guardrail in a retracted position;

FIG. 5 is a schematic front view of a guardrail of one embodiment of the present disclosure with the movable portion of the guardrail in an extended position;

fig. 6 is a control schematic block diagram of a guided evacuation system according to an embodiment of the present disclosure;

fig. 7 and 8 are schematic structural views illustrating a cover plate of a diversion evacuation system according to an embodiment of the present disclosure in a state of closing and opening an opening on the ground, respectively.

Description of the reference numerals

100-a guardrail; 10-a fixed part; 11-a guide rail; 20-a movable part; 21-a nut; 31-a controller; 32-a motor; 33-rotating rods; 41-a first electromagnetic member; 411-a first electromagnetic bar; 42-a second electromagnetic member; 421-a second electromagnetic member; 51-a first mating member; 52-a second mating member; 61-a first elastic return member; 62-a second elastic restoring member; 70-a buffer structure; 71-a damper; 711-a piston rod; 72-a contact; 80-mounting a bracket; 90-convex; 101-a first infrared sensor; 102-a second infrared sensor; 721-a first end; 722-a second end; 723-contact; 200-a control unit; 210-a first processor; 220-a second processor; 230-a switch; 240-terminal; 250-an alarm; 300-a cover plate; 310-a hinge axis; 400-angle limit structure; 500-ground; 510-an opening; 600-fence.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, unless otherwise specified, the terms of orientation such as "upper, lower, left, and right" are generally used to define the upper and lower directions of the drawing, and specifically, the "inner and outer" refer to the inner and outer directions of the relevant components with reference to the drawing direction of fig. 3. Furthermore, the use of terms such as "first," "second," "third," etc. in this disclosure is intended to distinguish one element from another, without order or importance.

As shown in fig. 3 to 6, the present disclosure provides a guardrail 100 including a fixed part 10, a movable part 20, and an electrically controlled driving device, wherein the fixed part 10 is pre-buried under the ground 500, the movable part 20 is movably connected to the fixed part 10, the electrically controlled driving device is used for driving the movable part 20 to move on the fixed part 10 so as to extend or retract the movable part 20 out of or into the ground, and the guardrail 100 has an emergency retraction mode in which the movable part 20 falls in a free-fall manner to retract into the ground 500. The specific structure of the movable portion 20 is not limited, and alternatively, as shown in fig. 5, the movable portion 20 may have a fence structure.

When installing the guard rail 100, a groove for placing the guard rail 100 may be provided in the ground 500, the guard rail 100 may be placed in the groove in advance, and the fixing portion 10 of the guard rail 100 may be fixed to the ground, for example, the fixing portion 10 may be fixed to the ground using a fastener, while an opening 510 for passing the movable portion 20 may be reserved in the ground 500, as shown in fig. 7.

Since the movable section 20 can be extended out of the ground and retracted below the ground, when the barrier 100 is applied to a semi-closed (semi-open) place, the movable section 20 can be extended out, as shown in fig. 5, and the movable section 20 is in an extended state, functioning as a general barrier. When an emergency occurs, the movable portion 20 can be retracted to the ground, as shown in fig. 3, the movable portion 20 is in the retracted position to form an escape passage, which is beneficial to timely evacuation of a large number of people and can avoid the occurrence of stepping on of the people.

In addition, since the guardrail 100 has the emergency retraction mode, in an emergency, the movable portion 20 falls in a free-fall manner, which is beneficial to the movable portion 200 to retract to the ground surface quickly, so as to construct an escape channel as timely and reliably as possible, thereby avoiding the situation that the movable portion 20 cannot retract normally due to faults such as the benefit of a driving mechanism.

Moreover, the guardrail 100 provided by the present disclosure has at least the following advantages over the prior art fence 600 shown in fig. 1 and 2:

first, the fence 600 of the prior art is a simple product and cannot be intelligently controlled. Due to the fact that the guardrail 100 is provided with the electric control driving device, when the guardrail 100 needs to retract, the movable part 20 can be driven to retract in an electric control mode, conditions are provided for remote control or advance control over retraction of the movable part 20, and the intelligent degree is high.

Secondly, the prior art has no traffic capacity in emergency, and has the possibility of occurrence of gathering injury accidents. When an emergency occurs, the guardrail 100 of the present disclosure can be in communication connection with a fire Alarm system fas (fire Alarm system) and a broadcasting system pa (public address system), and when a person is not reached, the guardrail is controlled to retract, and meanwhile, the broadcasting system sends out a prompt sound to remind passengers, thereby facilitating the timely evacuation of a large number of people.

In the present disclosure, the specific structure of the electrically controlled driving device is not limited. Alternatively, as shown in fig. 3, in an embodiment of the present disclosure, the electrically controlled driving device may include a controller 31, a motor 32 and a rotating rod 33, the rotating rod 33 may be arranged in a vertical direction and be in transmission connection with the motor 32, for example, be connected with an output shaft of the motor 32, so that the rotating rod 33 can rotate along its axis under the driving of the motor 32, a nut 21 is provided on the movable portion 20, the rotating rod 33 and the nut 21 are configured as a screw-nut mechanism, and the controller 31 is used for controlling the operation of the motor 32, that is, controlling the rotation of the motor 32. Wherein, nut 21 is split type nut, can the detachable cooperation with dwang 33. Thus, when the movable portion 20 needs to be extended, the nut 21 can be engaged with the rotating rod 33, and the movable portion 20 can be driven to move upwards to extend out of the ground 500. And when the emergency retraction mode is required, the nut 21 may be separated from the rotating lever 33 so that the movable portion 20 can be dropped in a free-fall manner.

In this embodiment, when the guardrail 100 needs to be extended, the controller 31 can control the output shaft of the motor 32 to rotate in one direction (e.g. clockwise), so as to drive the rotating rod 33 to rotate around its axis, and drive the nut 21 to move upwards along the axial direction of the rotating rod 33, so that the movable portion 20 extends out of the fixed portion 10 to reach and maintain the extended position. In this way, the movable part 20 can be adjusted from the retracted position shown in fig. 3 to the extended position shown in fig. 5.

When retraction of the guardrail 100 is required, such as emergency evacuation of people, optionally, in one embodiment, the controller 31 can control the output shaft of the motor 32 to rotate in another direction (e.g., counterclockwise), so as to drive the rotating rod 33 to rotate around its axis, and drive the nut 21 to move downward along the axial direction of the rotating rod 33, so that the movable portion 20 retracts into the fixed portion to reach and maintain the extended position. In this way, the movable portion 20 can be adjusted from the extended position shown in fig. 5 to the retracted position shown in fig. 3. Thereby avoiding crowd and being beneficial to timely evacuation of a large number of people.

Alternatively, as can be seen from the above, the movable portion 20 may also adopt the emergency retraction mode described above, depending on the situation.

The present disclosure does not limit the manner in which the movable portion 20 is adjusted from the extended position to the retracted position.

In other embodiments of the present disclosure, the motor 32 may be a linear motor, the motor 32 may be disposed such that the extension and contraction direction of the push rod thereof is a vertical direction, and the push rod of the motor 32 may be connected to the lower end of the movable part 20. In this way, when the push rod of the motor extends and retracts up and down, the movable part 20 can extend out of the ground or retract back to the ground.

As shown in fig. 3, in an embodiment of the present disclosure, the electrically controlled driving device further includes a first electromagnetic member 41, a first mating member 51, a second electromagnetic member 42, and a second mating member 52.

The first electromagnetic member 41 is mounted on the movable portion 20, the first electromagnetic rod 411 of the first electromagnetic member 41 can be close to or far from the rotating rod 33 along the horizontal direction, and the first engaging piece 51 is disposed at an end portion of the first electromagnetic rod 411 close to the rotating rod 33. The second electromagnetic member 42 is mounted on the movable portion 20 and located on opposite sides of the rotating rod 33 from the first electromagnetic member 41, the second electromagnetic rod 421 of the second electromagnetic member 42 can move closer to or away from the rotating rod 33 along the horizontal direction, and the second engaging element 52 is disposed at an end portion of the second electromagnetic rod 421 close to the rotating rod 33.

The end surface of the first fitting member 51 close to the rotating rod 33 is provided with a first internal threaded hole (semicircular groove), the end surface of the second fitting member 52 close to the rotating rod is provided with a second internal threaded hole (semicircular groove), and the first fitting member 51 and the second fitting member 52 can jointly define the nut 21.

That is, in the present embodiment, the nut 21 is a split nut, and when the first engaging piece 51 and the second engaging piece 52 are respectively moved to abut against the rotating lever 33, the nut 21 of the lead screw-nut mechanism can be configured.

In specific operation, as shown in fig. 5, the movable portion 20 is in the extended position, at this time, the first electromagnetic member 41 and the second electromagnetic member 42 are energized, the first electromagnetic rod 411 of the first electromagnetic member 41 is close to the rotating rod 33, so that the first mating member 51 is located at a position where the first mating member 51 is mated with the rotating rod 33, the second electromagnetic rod 421 of the second electromagnetic member 42 is extended close to the rotating rod 33, so that the second mating member 52 is located at a position where the second mating member 52 is mated with the rotating rod 33, the first mating member 51 and the second mating member 52 are configured as the nut 21, the motor 32 is in the power-off state at this time, the rotating rod 33 is not rotated, and the movable portion 20 maintains the extended state, that is, the movable portion 20 is locked at the extended position.

When it is necessary to retract the movable portion 20, for example, when the fire alarm system FAS or the broadcasting system pa (public address system) issues an alarm to evacuate the crowd, the controller 31 may control the first electromagnetic member 41 and the second electromagnetic member 42 to lose power, so that the first engaging member 51 and the second engaging member 52 move to the position separated from the rotating lever 33. The movable portion 20 falls freely under its own weight and falls to the ground, so that the movable portion 20 is retracted below the ground. At this time, optionally, the first electromagnetic member 41 and the second electromagnetic member 42 may be energized again, so that the first engaging piece 51 and the second engaging piece 52 are moved to the positions engaging with the rotating lever 33, configured as the nut 21, so that the movable portion 20 is maintained in the retracted state, i.e., the movable portion 20 is locked in the retracted position.

When the movable portion 20 needs to be extended again, the motor 32 may be powered to rotate to drive the rotating rod 33 to rotate, so as to drive the movable portion 20 to move upward along the axial direction of the rotating rod 33, and thus move to the extended position. After the movable portion 20 is moved to the extended position, the energization of the motor 32 may be turned off and the first and second electromagnetic members 41 and 42 are kept energized, so that the first and second engaging members 51 and 52 are moved to the positions engaging with the rotating lever 33 to lock the movable portion 20 at the extended position.

Alternatively, the first and second electromagnetic members 41 and 42 may be electromagnets. As shown in fig. 5, both can be fixed to the movable portion 20 by mounting brackets 80, respectively.

As shown in fig. 3 and 5, in one embodiment of the present disclosure, the electronically controlled driving device 100 further includes a first elastic restoring member 61 and a second elastic restoring member 62, and one end of the first elastic restoring member 61 is connected to the first electromagnetic lever 411 and the other end is connected to the movable portion 20 to apply a force to the first electromagnetic lever 411 to move it in a direction away from the rotating lever 33. The second elastic restoring member 62 has one end connected to the second electromagnetic lever 421 and the other end connected to the movable portion 20 to apply a force to the second electromagnetic lever 421 to move it in a direction away from the rotating lever 33.

Based on this, when the movable portion 20 moves from the extended position to the retracted position, the power supply of the first electromagnetic element 41 and the second electromagnetic element 42 is cut off, and then under the action of the elastic force (reset force) of the first elastic reset element 61 and the second elastic reset element 62, the first electromagnetic rod 411 and the second electromagnetic rod 421 will move towards the direction away from the rotating rod 33, so that the first mating element 51 and the second mating element 52 (split nut) are separated from the rotating rod 33, thereby facilitating the movable portion 20 to move downwards under the action of the self-weight, avoiding the situation that the nut 21 and the rotating rod 33 cannot be separated under the condition of power cut-off due to tight matching, and ensuring the reliability of separation of the lead screw nut.

In other embodiments of the present disclosure, the electrically controlled driving device may include an electromagnetic driving member, in which the movable portion 20 may be a magnetic member, the electromagnetic driving member is disposed at the bottom of the fixed portion 10, and the electromagnetic driving member is configured to apply an upward magnetic force (repulsive force) to the movable portion 20 when power is applied, so that the movable portion 20 moves upward to protrude out of the ground, and when power is lost, the magnetic force of the electromagnetic driving member disappears, so that the movable portion 20 performs a free-fall motion when retracted.

Alternatively, as shown in fig. 3, in one embodiment of the present disclosure, the first and second elastic restoring members 61 and 62 may be restoring springs. Optionally, as shown in fig. 5, two protrusions 90 are further disposed on the movable portion 20, the first elastic restoring member 61 is sleeved on one end of the first electromagnetic rod 411 away from the first mating member 51, one end of the first elastic restoring member 41 abuts against one of the protrusions 90, and the other end abuts against the boss structure on the first electromagnetic rod 411. The second elastic reset element 62 is sleeved on one end of the second electromagnetic rod 421 away from the second mating element 52, one end of the second elastic reset element 62 abuts against the other protrusion 90, and the other end abuts against the boss structure on the second electromagnetic rod 421. When the first and second mating members 51 and 52 are in the position to be engaged with the rotating rod 33, the first and second elastic restoring members 61 and 62 are in a stretching state, and the first and second electromagnetic rods 411 and 421 are engaged with the rotating rod 33 against the elastic pulling force of the first and second elastic restoring members 61 and 62, respectively. Therefore, when the first and second electromagnetic members 41 and 42 are de-energized, the first and second engaging elements 51 and 52 are ensured to be separated from the rotating lever 33 by the restoring force of the first and second elastic restoring members 61 and 62.

In other embodiments, the first elastic restoring member 61 and the second elastic restoring member 62 may be elastic sheets or made of other elastic materials.

In order to buffer the movable part during the retraction process, in the present disclosure, the guardrail further includes a buffering structure 70 disposed between the movable part 20 and the fixed part 10, the buffering structure 70 being used to buffer the movable part 20 when the movable part 20 is retracted. Particularly in the embodiment in which the barrier 100 is free-falling during retraction, the provision of the buffer structure 70 prevents the movable part 20 from damaging itself and the fixed part 10 during retraction.

The present disclosure does not limit the specific structure of the buffer structure. Alternatively, as shown in fig. 3, in an embodiment of the present disclosure, the buffering structure 70 includes a damper 71 and a contact member 72, the damper 71 is mounted on the fixed portion 10, optionally, the cylinder of the damper 71 is hinged to the fixed portion 10, the contact member 72 has a first end 721 opposite to the fixed portion 10, a second end 722, and a contact portion 723 between the first end 721 and the second end 722, the first end 721 is hinged to the fixed portion 10, and the second end 722 is connected to a piston rod 711 of the damper 71. The movable portion 20 is retracted to press the contact portion 723 outwardly so that the second end 722 moves the piston rod 711 in the damper 71. That is, referring to fig. 5, the movable portion 20 will press the contact portion 723 of the contact piece 72 outward during the downward movement, so that the second end 722 of the contact piece 72 moves outward and brings the piston rod 711 into movement within the damper 71 to play a role of cushioning the movable portion 20 by the action of the damper 71.

Here, since the specific structure and operation principle of the damper are well known to those skilled in the art, they will not be described in detail herein.

In other embodiments, the buffer structure 70 may be a buffer spring mounted on the fixed part 10 for contacting the bottom wall of the movable part 20.

In order to avoid the displacement of the movable part 20 during the up and down movement (especially, during the retraction process), as shown in fig. 3, in one embodiment of the present disclosure, a guide rail 11 arranged in a vertical direction may be provided on the fixed part 10, and the movable part 20 is slidably fitted on the guide rail 11 to guide the movable part 20 through the guide rail 11.

Alternatively, as shown in fig. 3, the number of the guide rails 11 may be at least two, and the at least two guide rails 11 are respectively disposed at the left and right sides of the rotating lever 33. Thus, when the movable portion 20 moves in the axial direction of the rotating lever 11, the portions of the movable portion 20 located on both the left and right sides of the rotating lever 31 can be guided well, and the movable portion 20 can be further prevented from shifting during the vertical movement.

In one embodiment of the present disclosure, as shown in fig. 4, a position sensor is provided on the guard rail 100 to detect a position of the movable part 20 on the fixed part 10 in a vertical direction. A position sensor is provided to facilitate the determination of whether the movable section 20 is in the extended position or the retracted position.

The specific number, type and configuration of the position sensors is not limiting in this disclosure. Alternatively, as shown in fig. 4, in one embodiment of the present disclosure, the position sensor is an infrared sensor, and includes a first infrared sensor 101 disposed at an upper end of the fixing portion 10 and a second infrared sensor 102 disposed at a lower end of the fixing portion.

Alternatively, as shown in fig. 4, the fixed portion 10 may be configured as a U-shaped structure with an upward opening, the movable portion 20 may be movable in the upward and downward directions in the opening of the U-shaped structure, the infrared transmitter of the infrared sensor (including the first infrared sensor 101 and the second infrared sensor 102) is disposed at one side plate of the U-shaped structure, and the infrared sensor (the infrared receiver of the bag is disposed at the other side plate of the U-shaped structure, and the movable portion 20 may selectively block the infrared sensor when moving in the upward and downward directions, specifically, as shown in fig. 3, when both infrared sensors are blocked, it is determined that the movable portion 20 is inside the fixed portion 10, and when the first infrared sensor 101 is blocked, the second infrared sensor 102 is not blocked, it is determined that the movable portion 20 is outside the fixed portion 10.

Alternatively, the retraction of the mobile portion 20 into the fixed portion 10 and the extension of the mobile portion 20 out of the fixed portion 109 is performed once regardless of the position of the mobile portion 20 when the guard rail 100 is first powered up. For the movable part 20 already in the fixed part 10, only the extending operation of the movable part 20 is performed, and then the movable part 20 is retracted into the fixed part 10 to check whether the operation of the respective sensors and magnetic members in the process is normal.

According to another aspect of the present disclosure, there is provided a diversion evacuation system, as shown in fig. 6, comprising a control unit 200 and the above-described guard rail 100. Wherein, the control unit 200 can be connected with the guardrail 100 in communication to control the movable part 20 to move on the fixed part 100. That is, in the embodiment shown in fig. 3, the control unit 200 may be electrically connected to the electrically controlled driving device (including the motor 32) to control the rotation and stop of the motor 32, and may control the energization and de-energization of the first and second electromagnetic members 41 and 42.

Alternatively, as shown in fig. 6, in one embodiment of the present disclosure, the control unit 200 may include a first processor 210, a switch 230, and a terminal 240, the first processor 210 or the terminal 240 is communicatively connected to the guardrail 100 through the switch 230, and the first processor 210 or the terminal 240 is communicatively connected to a fire alarm system FAS, a broadcast system PA, or a CCTV.

In this way, the first processor 210 may control the operation of the electrically controlled driving device according to a signal (such as a fire alarm signal or other type of alarm signal) transmitted by the fire alarm system FAS or the broadcast system PA system, or may control the operation of the electrically controlled driving device according to an instruction sent by an operator through the terminal 240 or an instruction preset by the terminal 240 itself. Further, the operator can set the operation mode of the guardrail 100 at the terminal and also remotely operate the guardrail 100 to change the state of the guardrail 100. In addition to this. The first processor 210 can also be managed (e.g., set up programs, etc.) and monitored.

Here, the first processor 210 can provide a carrier for the system software to run, receive the operation instruction of the staff member on the terminal 240, and issue the instruction to the guardrail 100. Meanwhile, the operation records of the operator can be stored and the equipment state of the whole system can be monitored. In addition, the first processor 210 is communicatively connected to the fire alarm system FAS or the broadcasting system PA so as to be able to control the first electromagnetic member 41 and the second electromagnetic member 42 to be de-energized and the motor 32 to be energized to rotate when a specific event occurs, for example, when the first processor detects that the fire alarm system FAS alarms, thereby retracting the movable portion 20 of the guardrail 100 from the extended position to the retracted position.

Switch 230 may provide a path for network interworking. The network structure is variable, and a looped network, a star network or a special transmission network can be selected according to the field situation, which is not limited by the disclosure.

The terminal 240 (e.g., a workstation) may provide a human-computer interaction interface. The staff can set for the mode of operation of guardrail on the workstation, also can remote operation guardrail 100 simultaneously, changes guardrail 100 state to equipment management and control.

Optionally, as shown in fig. 6, in an embodiment of the present disclosure, the control unit 200 further includes a second processor 220, the second processor 220 is communicatively connected with the switch 220 and the electrically controlled driving device of the guardrail 100, respectively, and the second processor 220 is communicatively connected with the fire alarm system FAS or the broadcasting system PA.

Since the second processor 220 is provided to be connected in communication with the fire alarm system FAS or the broadcasting system PA, for example, to form a local area network connection with the fire alarm system FAS or the broadcasting system PA. Thus, for example, when the second processor 220 fails to communicate with the first processor 210 or the terminal 240 (e.g., a network failure occurs), the second processor 220 can also receive the fire alarm system FAS or the broadcast system PA signal, which can serve the purpose of redundant security.

Alternatively, in one embodiment of the present disclosure, the second processor 220 may include a relay, and the second processor 220 may execute a control signal of the terminal 240, the first processor 210, the fire alarm system FAS, or the broadcasting system PA to change a closed or open state of the relay to turn on or off the power supply of the motor 32, the first electromagnetic member 41, and the second electromagnetic member 42, thereby implementing the control of the guardrail 100.

Alternatively, the second processor 220 may have an RJ45 interface and an RS232 interface, and be connected to the switch 230 through an RJ45, controlled by the first processor 210 or the terminal 240, and may also be connected to a fire alarm system FAS or a broadcast system PA through an RS232 interface.

In other embodiments, the relay may be provided separately, without integrating the relay into the second processor, for example integrating the relay into a guardrail.

Optionally, in an embodiment of the present disclosure, as shown in fig. 6, the guided evacuation system further comprises an alarm 250, and the alarm 250 is communicatively connected to the control unit 200. Before the state of the guardrail 100 is changed, the alarm 250 can be controlled by the control unit 200 to start alarming, so as to achieve the purpose of reminding.

The present disclosure is not limited to a particular type of alarm 250, and alternatively, the alarm 250 may be an audible and visual alarm.

Alternatively, an audible and visual alarm may be positioned directly above the guardrail 100 to provide an audible and visual alarm to alert personnel to take care of the guardrail 100 before the guardrail is positionally adjusted 100.

Optionally, in the present disclosure, the diversion evacuation system further includes a distribution box (not shown), the distribution box may be a device having fire-fighting linkage and not using fire-fighting electricity, and when the fire alarm system FAS needs and does not use fire-fighting electricity, the distribution box will cut off the electricity of the diversion evacuation system.

In order to ensure that the ground is kept flat during evacuation, as shown in fig. 7 and 8, the diversion evacuation system further includes a cover plate 300 and an angle limiting structure 400, the cover plate 300 is arranged on the ground in an openable and closable manner, and covers an opening 510 arranged on the ground 510 and allowing the movable part 20 to pass through when the movable part 20 is retracted to the ground, so as to prevent the opening 510 from affecting the passage of people and from entering sundries, for example, from the opening.

The angle limiting structure 400 is used to limit the opening angle of the cover 300 such that the opening angle of the cover 300 is less than 90 ° to enable the cover 300 to return to the closed position. Alternatively, the cover plate 300 may be hinged to the ground through a hinge shaft 310. That is, when the cover 300 is in the open state, the angle between the surface (inner surface) of the cover 300 facing the opening 510 and the surface of the area where the opening is located is not larger than 90 °, so that it is possible to prevent the cover 300 from being excessively turned over and thus from being unable to return to the closed position. In the present embodiment, when the movable portion 20 is retracted to the retracted position shown in fig. 3, the cover 300 may be driven to cover the opening 510 by the self-weight of the cover 300 or other driving mechanism.

Optionally, as shown in fig. 7, the cover plate 300 is configured such that when the cover plate 300 is closed on the opening, the upper surface of the cover plate 300 is flush with the ground to facilitate the passage of people.

The present disclosure does not limit the specific structure of the angle limiting structure 400. Alternatively, in one embodiment of the present disclosure, as shown in fig. 8, the angle limiting structure 400 may be a pulling rope having one end connected to the inner surface of the cover plate 300 and the other end connected to the ground, and the length of the pulling rope is configured such that the opening angle of the cover plate is less than 90 ° when the pulling rope is in the pulling rope state.

Optionally, in other embodiments of the present disclosure, the angle limiting structure 400 may be a circumferential limiting groove, the cover plate 300 may be hinged to the ground through a hinge shaft, a limiting protrusion may be disposed on the hinge shaft, and the position of the limiting protrusion is set to be that when the opening angle of the cover plate is smaller than 90, the limiting protrusion abuts against the side wall of the groove, so as to limit the stopping of the limiting protrusion, thereby limiting the hinge shaft to rotate toward the direction that makes the opening angle of the cover plate further increase.

It should be noted that, in the present disclosure, the number of the guardrails 100 is not limited, and in one location (e.g., a semi-enclosed location), a plurality of guardrails 100 may be used to form a guardrail group, and the plurality of guardrails 100 may be electrically connected to one control unit 200, that is, the plurality of guardrails 100 are controlled by one control unit 200 to control the extension and retraction of the guardrails 100. Specifically, the second processor 220 can be electrically connected to the electrically controlled driving devices of the plurality of guardrails 100, respectively.

Optionally, the guardrail groups of the plurality of places can be connected with each other through a switch (such as the switch described above) so as to enable linkage between the guardrail groups of the plurality of places. For example, when an accident occurs at one of the sites, the site can transmit a corresponding signal to the second processor 220 of the other guardrail group according to the selector, so that the second processor controls the guardrail of the corresponding guardrail group to stretch and contract.

Hereinafter, a detailed process of the extension and retraction of the guard rail 100 provided based on the present disclosure will be briefly described with reference to fig. 3 and 5.

The process of switching the guardrail 100 from the extended position to the retracted position is:

in normal operation, as shown in fig. 5, the movable portion 20 is located at the extended position, the first infrared sensor 101 is shielded, the second infrared sensor 102 is not shielded, the first electromagnetic member 41 and the second electromagnetic member 42 are energized, the first engaging member 51 and the second engaging member 52 are configured to be engaged with each other to form a nut, and the rotating lever 33 is configured to form a screw-nut mechanism. At this time, the motor 32 is in a power-off state, and the rotating lever 33 is not rotated. When it is desired to retract the barrier 100, for example, when the fire alarm system FAS is triggered, the first processor 210 transmits a fire alarm system FAS linkage control command. The first processor 210 sends a control command to the second processor 220 of the location requiring emergency evacuation through the switch 230, and the second processor 220 responds upon receiving the command, triggering the sound and light alarm to sound immediately, and then controlling the operation of the electrically driven control means of the guard rail 100. Specifically, by turning off the relay, the power supply to the first electromagnetic member 41 and the second electromagnetic member 42 is simultaneously turned off, and at this time, under the reset force of the elastic reset member, the first electromagnetic rod 411 and the second electromagnetic rod 421 respectively drive the first mating member 51 and the second mating member 52 to be separated from the rotating rod 33. In this way, the movable portion 20 of the guard rail 100 is freely dropped by its own weight and is guided by the guide rail 11 to drop. When the bottom of the movable portion 20 contacts the contact member 72, the second end 722 of the contact member 72 drives the piston rod 711 of the damper 71 to move, so that the falling of the movable portion 20 is buffered, and the bottom of the movable portion 20 slowly reaches the bottom of the fixed portion 10. While the movable section 10 is falling, the controller 31 detects that the first infrared sensor 101 is blocked to unblocked, and determines that the movable section 20 is falling. The movable part 20 is judged to have completed the falling process by the first infrared sensor 101 and the second infrared sensor 102 being shielded. At this time, the controller 31 may upload a signal of the opened state of the evacuation channel to the first processor 210.

The process of switching the guardrail 100 from the retracted position to the extended position is:

the triggering of the fire alarm system FAS is finished and the first processor 210 may send a fire alarm system FAS linkage cancel command to the second processor 220 that has completed the evacuation site. After the second processor 220 responds, the relay is controlled to close to energize the first electromagnetic member 41 and the second electromagnetic member 42, so that the first electromagnetic bar 411 and the second electromagnetic bar 421 move toward the rotating bar 33 against the elastic force of the elastic reset member, and the first mating member 51 and the second mating member 52 approach to combine the split screw nut. At this time, the control motor 32 is slowly rotated to make the rotating lever 33 and the combined split screw nut 21 in a good fit state. It is detected whether the first infrared sensor 101 and the second infrared sensor 102 are changed from the shielded state to the unshielded state while the motor 21 is slowly rotated. If both infrared sensors are detected to be in the unblocked state, the controller 31 may control the motor 32 to increase the speed until the first infrared sensor 101 is detected to be blocked, to decelerate and stop the power supply to the motor 31. At this time, the guard rail 100 is restored to the extended state.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.