CN211851590U

CN211851590U - Safety door with observation window

Info

Publication number: CN211851590U
Application number: CN202020151562.7U
Authority: CN
Inventors: 于胜军
Original assignee: Individual
Current assignee: Mortensen Well Industrial Technology Suzhou Co ltd
Priority date: 2020-02-04
Filing date: 2020-02-04
Publication date: 2020-11-03
Anticipated expiration: 2030-02-04

Abstract

The utility model relates to an emergency exit field, concretely relates to emergency exit with observation window. In order to solve the problem that the current emergency exit can not observe the interior operation condition of door outdoors, the utility model provides an emergency exit with observation window. The safety door comprises a door curtain, an observation window, a roller shutter shaft, a limiting track and a driving device; the rolling shaft is positioned at the top end of the safety door, the driving device is connected with the rolling shaft, the upper end of the door curtain is connected with the rolling shaft, and the limiting rails are positioned at two sides of the door curtain; the observation window is arranged on the door curtain; when the driving device drives the roller shutter shaft to rotate forwards, the door curtain rises along the limiting track and is wound on the roller shutter shaft from the upper end; when the driving device drives the roller shutter shaft to rotate reversely, the door curtain is unreeled from the roller shutter shaft and descends along the limiting track. The safety door is provided with the observation window, so that personnel can observe the operation condition in the safety door through the observation window outside the safety door.

Description

Safety door with observation window

Technical Field

The utility model relates to an emergency exit field, concretely relates to emergency exit with observation window.

Background

The intelligent manufacturing is the core direction of the upgrading of the current Chinese industrial industry, the welding process is always concerned as one of the most important processing modes in the mechanical industry, and the replacement of manual operation by a welding robot becomes a great trend.

The emergency exit is the important facility of isolation welding region and external turnover or office area, to current emergency exit, ubiquitous many problems, such as emergency exit noise height, the reaction is slow, door body material does not have fire behaviour, barrier propterty is relatively poor, can not observe the interior operation condition of door outdoors, when personnel observe automatic operation, need dress protective clothing and prevent behind the arc light eye-shade, open the emergency exit and enter into the working condition that the welding zone just can observe welding robot, cause a great deal of inconvenience for technical staff or observer, and contain the harmful substance that produces when welding in the welding zone, cause defects such as injury for technical staff or observer's health.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the current emergency exit can not observe the interior operation condition of door outdoors, the utility model provides an emergency exit with observation window. The safety door is provided with the observation window, so that personnel can observe the operation condition in the safety door through the observation window outside the safety door.

In order to solve the technical problem, the utility model adopts the following technical scheme.

The utility model provides a safety door with an observation window, which comprises a door curtain, the observation window, a rolling shaft, a limiting track and a driving device; the rolling shaft is positioned at the top end of the safety door, the driving device is connected with the rolling shaft, the upper end of the door curtain is connected with the rolling shaft, and the limiting rails are positioned at two sides of the door curtain; the observation window is arranged on the door curtain.

Further, the driving device is installed at one side of the top end of the safety door. The rolling shaft is transversely arranged at the top end of the safety door; when the driving device drives the roller shutter shaft to rotate forwards, the door curtain rises along the limiting track and starts to be rolled (namely wound) on the roller shutter shaft from the upper end; when the driving device drives the roller shutter shaft to rotate reversely, the door curtain is unreeled from the roller shutter shaft and descends along the limiting track.

When the door curtain rises along the limiting rail, the safety door is opened; when the door curtain is unreeled from the roller shutter shaft and descends along the limiting track, the safety door is closed. When the roller shutter shaft rotates forwards (rotates clockwise or anticlockwise), upward tension is generated on the door curtain, and the door curtain rises and is rolled on the roller shutter shaft under the action of the tension; when the rolling shutter shaft rotates reversely (rotates in the direction opposite to the forward rotation direction), the door curtain is uncoiled, and falls under the action of gravity.

When the lower extreme of door curtain rises to rolling up the roller shutter shaft near, drive arrangement stall, rolling up roller shutter shaft stall, the door curtain stops to rise, and the emergency exit is opened completely. When the lower end of the door curtain descends to the ground, the driving device stops rotating, the rolling shutter shaft stops rotating, the door curtain stops descending, and the safety door is completely closed. The position near the roller shutter shaft is 5-50cm below the roller shutter shaft. Furthermore, the position close to the roller shutter shaft is 10-20cm below the roller shutter shaft.

The observation window comprises a window and a transparent observation curtain, and the transparent observation curtain covers the window. The personnel observe the operation condition in the safety door through transparent observation curtain outside the safety door.

Furthermore, the emergency exit with observation window still includes the door frame, roll up the roller shutter shaft and be located the top of door frame, spacing track is located the door frame of door curtain both sides.

Furthermore, the safety door with the observation window further comprises a controller, and the controller comprises a signal receiving device and a signal transmitting device.

The limiting rails are used for limiting the two sides of the door curtain to swing forwards, backwards, leftwards and rightwards, so that the door curtain can stably and rapidly ascend or descend, and the opening or closing speed of the safety door is improved.

Furthermore, two sides of the door curtain are provided with limiting sliding blocks (which can be simply called sliding blocks), and the limiting sliding blocks are arranged in the limiting tracks; when the door curtain rises, the sliding block rises along the limiting track; when the door curtain descends, the sliding block descends along the limiting track.

Further, the emergency exit is installed the electron limit switch. Further, the emergency exit is installed with inductive switch.

Further, the inductive switch comprises a first stop inductor, a second stop inductor and a controller.

Furthermore, the top end of the limiting track is provided with a first stop sensor, when the sliding block contacts the first stop sensor, the first stop sensor sends a stop signal to the controller, after a signal receiving device of the controller receives the stop signal, a signal transmitting device of the controller sends the stop signal to a driving device, the driving device stops rotating, the driving device drives the rolling shutter shaft to stop rotating, and the rolling shutter stops rising. The utility model discloses a spacing orbital door curtain, including the slider, the slider is fixed on the slider, the slider.

Furthermore, the limiting rail comprises a left limiting rail and a right limiting rail; the left side of door curtain is arranged in to left side spacing track, the right side of door curtain is arranged in to right side spacing track. The limiting slide block comprises a left limiting slide block and a right limiting slide block; the left side limiting slide block is arranged in the left side limiting track, and the right side limiting slide block is arranged in the right side limiting track.

Furthermore, the limiting track comprises a limiting guide strip, the limiting sliding block comprises a limiting guide groove, and the limiting guide strip is arranged in the limiting guide groove. The limiting guide strip is used for increasing the sliding stability of the limiting sliding block in the limiting guide rail. The limiting slide block is not easy to shake under the clamping of the limiting guide strip.

Furthermore, the limiting track comprises a first limiting guide strip, a second limiting guide strip and a third limiting guide strip.

Furthermore, a transverse rib plate is arranged on the door curtain, and the two ends of the rib plate are provided with the limiting sliding blocks. When the rolling shutter shaft rotates reversely, the door curtain unwinds the rolling shutter shaft, and the door curtain descends under the gravity action of the door curtain and the rib plates.

Further, the transparent viewing curtain has an arc protection function. Further, the surface of the transparent observation curtain is provided with an ultraviolet-resistant coating which has an arc-proof function.

Furthermore, a sealing device is installed on the limiting track. Further, the sealing device is a brush sealing structure. Furthermore, the sealing device is a double-row brush sealing structure of a PVC base, so that more effective insect prevention and dust prevention can be realized. Further, the base is installed on the limiting track, and the hairbrush is in contact with two sides of the door curtain.

Furthermore, the door curtain is made of flexible flame-retardant materials, the door curtain can be easily rolled on the rolling shaft due to the flexibility of the door curtain, and the door curtain has a fireproof function and is suitable for safety doors in welding places.

Furthermore, the transparent observation curtain is made of flexible flame-retardant materials, the flexibility of the transparent observation curtain enables the transparent observation curtain to be easily rolled on a rolling curtain shaft, and the transparent observation curtain has a fireproof function and is suitable for safety doors in welding places. The transparent observation curtain also has an arc light prevention function, and is connected with the door curtain in a heat seal or sticking mode and covered on the window of the door curtain.

Furthermore, the flexible flame-retardant material is selected from polyester fiber fireproof fabric or glass fiber fireproof fabric, and the transparent observation curtain with the arc light prevention function is selected from arc light prevention PVC plastic.

Further, the limiting rails are respectively installed at the door frames on the left side and the right side of the safety door, the bottom end of the roller shutter is provided with a roller shutter rib plate, the left end and the right end of the roller shutter rib plate are provided with limiting sliding blocks, and the limiting sliding blocks are correspondingly installed in the limiting rails.

Further, drive arrangement outside is provided with the motor cover, the outside of rolling up the curtain axle is equipped with the roll curtain cover, and the effect of cover is prevent wind dustproof, and the outward appearance is pleasing to the eye.

Further, the transparent viewing curtain (also referred to as an arc-protection window) is disposed at a middle position of the door curtain. Further, the shape of the transparent viewing curtain, and/or the viewing window (or window) is selected from square, circular or polygonal.

Further, safety sensing devices are installed on the left side and the right side of the safety door.

Further, safety sensing devices (also referred to as photoelectric safety devices) are installed on the left and right door frames of the safety door.

Further, the safety sensing device is an infrared sensor.

Furthermore, the photoelectric safety device is arranged at a position lower than the middle part of the safety door. The photoelectric safety device is a correlation electric eye.

Furthermore, opposite-emitting electric eyes (also called as opposite-emitting photoelectric sensors) are arranged on two sides of the safety door, and when an object exists in the safety door, the door is kept in an open state; when the door curtain descends, an object passes through the lower part of the door curtain, the door curtain stops descending and rises to be opened to the most open position, and then descends when no obstacle exists below the door curtain, and the process is also called time delay descending.

The correlation electric eye comprises a transmitting end and a receiving end, the transmitting end is arranged on one side of the safety door, and the receiving end is arranged on the other side of the safety door; the transmitting end emits red light or infrared light, and the receiving end receives the red light or infrared light. When an object passes through the safety door and red light or infrared light emitted by the emitting end is cut off in the descending process of the door curtain 4, the receiving end cannot receive the object, the receiving end sends a rising signal to the controller, after a signal receiving device of the controller receives the rising signal sent by the receiving end, a signal emitting device of the controller sends a forward rotation signal to a driving device, the driving device stops rotating reversely and turns to forward rotation, the driving device drives the roller shutter shaft to rotate forward, the door curtain rises, and the safety door is opened. When an object in the safety door penetrates through the safety door, no object exists below the door curtain, the receiving end receives red light or infrared rays emitted by the emitting end, the receiving end then emits a descending signal to the controller, after the signal receiving device of the controller receives the descending signal emitted by the receiving end, the signal emitting device of the controller emits a reverse signal to the driving device, the driving device receives the reverse signal and then reverses, the driving device drives the roller shutter shaft to reverse, the door curtain descends, and the safety door is closed. During the descending process of the door curtain 4, the door curtain 4 does not cut off the red light or the infrared light emitted by the emitting end.

Further, the inner and outer surfaces of the door curtain are provided with a self-cleaning coating.

Further, the inner and outer surfaces of the transparent viewing curtain are provided with self-cleaning coatings.

Further, the lower end (also called bottom end) of the door curtain is provided with an airtight pocket. The airtight bag belongs to a sealing structure and is used for sealing a gap between the lower end of the door curtain and the ground.

Furthermore, the upper end of the airtight bag is connected with the lower end of the door curtain, a cavity is arranged in the airtight bag, and air and/or soft fillers are/is arranged in the cavity. When the ground is uneven, the bottom of the airtight bag can be attached to the ground, so that no gap exists between the lower end of the door curtain and the ground.

Furthermore, the upper end of the airtight bag is connected with the ribbed plate.

Further, an airbag is disposed at a lower end (also referred to as a bottom end) of the curtain. The safety airbag belongs to a safety structure, prevents a door curtain from falling down and pounding people or objects, and is used for ensuring the safety of the safety door.

Furthermore, the upper end of the safety airbag (also called safety contact edge, bottom airbag and airbag) is connected with the lower end of the door curtain, a partition wall is arranged in the safety airbag, the partition wall enables a plurality of cavities to be formed in the safety airbag, a contact type sensor is arranged on the partition wall, the contact type sensor is arranged in the cavities, and air is filled in the cavities. When the door curtain descends, the safety air bag hits a person or an object, the safety air bag deforms, a partition wall in the safety air bag collides with the contact type sensor, the contact type sensor sends a rising signal to the controller, after a signal receiving device of the controller receives the rising signal sent by the contact type sensor, a signal transmitting device of the controller sends a forward rotation signal to the driving device, the driving device stops reverse rotation and turns to forward rotation, the driving device drives the rolling shutter shaft to rotate forward, the door curtain rises, the safety door is opened, and therefore the door curtain or the rib plate of the safety door is prevented from hitting the person or the object penetrating through the safety door, and safety of the safety door is guaranteed.

Further, the upper end of the airbag is connected with the rib plate.

Furthermore, the safety airbag is provided with a plurality of transverse partition walls, and a cavity is formed between the partition walls.

Furthermore, a first conductive metal sheet is arranged on one partition wall of the cavity of the safety airbag, a second conductive metal sheet is arranged on the opposite partition wall, when the safety airbag deforms under the action of external force, the first conductive metal sheet is in contact with the second conductive metal sheet, a circuit connected with the first conductive metal sheet and the second conductive metal sheet of the safety airbag is communicated, when the circuit is communicated, a signal transmitting device of the controller sends a forward rotation signal to a driving device, the driving device stops rotating reversely and turns into forward rotation, the driving device drives a rolling shaft to rotate forwards, a door curtain rises, and the safety door is opened, so that the door curtain or a rib plate of the safety door is prevented from hitting people or objects penetrating through the safety door, and the safety of the safety door is ensured.

When the door curtain descends, no person or object penetrates through the safety door, when the safety air bag is not acted by an external force, the door curtain descends until the lower end (also called bottom) of the safety air bag is contacted with the ground, and the safety air bag is not deformed to enable the first conductive metal sheet to be contacted with the second conductive metal sheet, the sliding block is contacted with the second stop sensor, the second stop sensor sends a stop signal to the controller, after a signal receiving device of the controller receives the stop signal, a signal transmitting device of the controller sends the stop signal to a driving device, the driving device stops rotating, the driving device drives the roller shutter shaft to stop rotating, and the door curtain stops descending.

Furthermore, the driving device and the roller shutter shaft are connected through a shaft to carry out power transmission. Furthermore, the driving device and the roller shutter shaft are in power transmission through a shaft connector.

Further, the driving device is a motor. Furthermore, the roller shutter shaft is connected with a motor shaft of the motor through a coupling.

Further, the roller shutter shaft is located in the inner cavity of the roller shutter enclosure, and the motor is located in the inner cavity of the motor enclosure.

Further, be provided with the door-hinge supporting seat in the roll up curtain enclosure, the roll up curtain axle erects on the door-hinge supporting seat.

Furthermore, the surface of the transparent observation curtain is provided with an ultraviolet-proof functional coating. Therefore, the transparent observation curtain has the effect of blocking ultraviolet rays, wherein the ultraviolet ray transmittance at the wavelength of 210-313nm is lower than 2 multiplied by 10^-3Percent; the ultraviolet transmittance of the wavelength of 313-400nm is lower than 3 percent; the ultraviolet transmittance of the wavelength of 230-400nm is lower than 10 percent; arc light generated by welding can be effectively isolated, and influence on observers is reduced.

Further, the controller further comprises a manual switch, and the manual switch comprises a curtain ascending switch and a curtain descending switch. Opening a door curtain ascending switch, and ascending the door curtain; and closing the door curtain ascending switch, and stopping the ascending of the door curtain. Opening a door curtain descending switch, and descending the door curtain; and closing the door curtain descending switch to stop the descending of the door curtain.

Further, the controller can receive signals sent by the robot and send signals to the robot. When the robot starts welding work, the robot sends a signal for closing the safety door to the controller, after a signal receiving device of the controller receives the signal for closing the safety door sent by the robot, a signal transmitting device of the controller sends a reverse signal to a driving device, the driving device reverses, the driving device drives the roller shutter shaft to reverse, the roller shutter descends, and the safety door is closed. When the robot finishes welding work, the robot sends a signal for opening the safety door to the controller, after a signal receiving device of the controller receives the signal for opening the safety door sent by the robot, a signal transmitting device of the controller sends a forward rotation signal to a driving device, the driving device forwards rotates, the driving device drives the roller shutter shaft to forwards rotate, the roller shutter rises, and the safety door is opened.

Further, the controller also comprises a control panel. And a manual switch is arranged on the control panel. Further, the control panel comprises an outer control panel and an inner control panel; the outer side control panel is arranged on the outer side of the safety door, so that personnel can conveniently open and close the safety door outside the safety door; the inboard control panel installs the inboard at the emergency exit, and the personnel of being convenient for switch the emergency exit in the emergency exit.

Furthermore, the safety door is externally connected with the controller, the controller comprises an electric cabinet, the electric cabinet is in electric signal connection with the driving device and the safety sensing device, and a programmable servo system is arranged in the electric cabinet. The ascending and descending positions and the speed of the door curtain can be adjusted, and the requirements of different working conditions are met.

Compared with the prior art, the utility model provides a safety door with observation window's beneficial effect as follows:

1. the utility model discloses be provided with transparent observation curtain on the emergency exit, the welding function of being convenient for technical staff or observer to the internal plant through transparent observation curtain in the weld zone outside is observed, and the arc light that effectual isolation welding produced plays the protective effect to personnel's eyes, because of need not get into the weld zone, also reduces the influence of the harmful object in weld zone to the observer health.

2. The door curtain is made of flexible flame-retardant materials, the door curtain of the safety door is driven by a lifting structure, and the space of a working area cannot be occupied when the safety door is opened and closed. The limiting rail limits the ascending and descending of the door curtain, keeps the stability of the door curtain when ascending and descending, can quickly open and close the door curtain, reduces the noise of the door curtain when ascending and descending, and solves the problem of high safety door ascending and descending noise. The door curtain is made of flexible materials, the limiting sliding block is of a plastic structure, and noise generated when the door curtain is lifted is further reduced.

3. Safety door both sides are provided with safety sensing device, and the door curtain that descends when avoiding the maloperation causes the injury to personnel, guarantees personnel's absolute safety. Furthermore, the safety airbag is installed at the lower end of the door curtain, so that the safety performance of the safety door is further improved.

4. Be equipped with brush seal structure on the spacing track, the door curtain lower extreme is equipped with sealed pocket or air bag, has improved the isolation effect of emergency exit, avoids the harmful substance of weld zone to enter into non-welding area through the emergency exit.

Drawings

Fig. 1 is a schematic front view of the safety door with an observation window according to the present invention;

fig. 2 is a schematic side view of the rolling shaft of the safety door with an observation window according to the present invention;

fig. 3 is a schematic front view of the rolling shutter shaft of the safety door with an observation window according to the present invention;

FIG. 4 is a schematic view of the airbag configuration;

fig. 5 is a schematic structural diagram of a limit rail and a limit slider.

Detailed Description

The technical solution provided by the present invention is clearly and completely described below with reference to the embodiments and the drawings of the specification.

Example 1

As shown in fig. 1 to 3, the present invention provides a safety door with an observation window, which comprises a door curtain 4, an observation window 9, a rolling shaft 10, a limiting rail 3 and a driving device; the rolling shaft 10 is positioned at the top end of the safety door, the driving device is connected with the rolling shaft 10, the upper end of the door curtain is connected with the rolling shaft 10, and the limiting rails 3 are positioned at two sides of the door curtain 4; the door curtain 4 is provided with the observation window 9; when the driving device drives the rolling shaft 10 to rotate forward, the door curtain 4 rises along the limiting track 3 and starts to roll (namely wind) on the rolling shaft 10 from the upper end; when the driving device drives the roller shutter shaft 10 to rotate reversely, the door curtain 4 is unreeled from the roller shutter shaft 10 and descends along the limiting track 3.

The driving device is installed on one side of the top end of the safety door. The rolling shaft 10 is transversely installed at the top end of the safety door.

When the door curtain 4 rises along the limiting track 3, the safety door is opened; when the door curtain 4 is unreeled from the roller shutter shaft 10 and descends along the limiting track 3, the safety door is closed. When the rolling shutter shaft 10 rotates forwards (rotates clockwise or anticlockwise), an upward pulling force is generated on the door curtain 4, and the door curtain 4 rises and is rolled on the rolling shutter shaft 10 under the action of the pulling force; when the rolling shaft 10 rotates reversely (in a direction opposite to the forward rotation direction), the door curtain 4 is unwound (also referred to as unwinding), and the door curtain 4 descends by gravity.

When the lower extreme of door curtain 4 rises to rolling up the roller shutter shaft 10 near, drive arrangement stall, rolling up roller shutter shaft 10 stall, door curtain 4 stops to rise, and the emergency exit is opened completely. When the lower end of the door curtain 4 descends to the ground, the driving device stops rotating, the rolling shutter shaft 10 stops rotating, the door curtain 4 stops descending, and the safety door is completely closed.

The viewing window 9 comprises a window (also called an opening or a through hole) and a transparent viewing curtain, and the transparent viewing curtain covers the window. The personnel observe the operation condition in the safety door through transparent observation curtain outside the safety door.

Further, the emergency exit with observation window 9 still includes the door frame, roll up curtain axle 10 and be located the top of door frame, spacing track position 3 is on the door frame of door curtain 4 both sides.

The limiting rails 3 are used for limiting the two sides of the door curtain 4 to swing back and forth and left and right, so that the door curtain can stably and rapidly ascend or descend, and the opening or closing speed of the safety door is increased.

Furthermore, two sides of the door curtain 4 are provided with limiting slide blocks, and the limiting slide blocks are arranged in the limiting track 3; when the door curtain rises, the sliding block rises along the limiting track; when the door curtain descends, the sliding block descends along the limiting track.

Further, the emergency exit is installed with inductive switch.

Further, the top of spacing track 3 sets up first sensor that stops, and when the slider contacted first sensor that stops, first sensor that stops to the controller sends stop signal, after the stop signal was received to the signal receiver of controller, the signal emitter of controller sent stop signal to drive arrangement, and drive arrangement stall, drive arrangement drive roll-up axle 10 stall, and the door curtain stops to rise. The utility model discloses a spacing orbital door curtain, including the slider, the slider is fixed on the slider, the slider is.

Further, the limiting track 3 comprises a left limiting track and a right limiting track; the left side of door curtain 4 is arranged in to left side spacing track, the right side of door curtain 4 is arranged in to right side spacing track. The limiting slide block comprises a left limiting slide block and a right limiting slide block; the left side limiting slide block is arranged in the left side limiting track, and the right side limiting slide block is arranged in the right side limiting track.

Furthermore, door curtain 4 is flexible fire-retardant material, and the softness degree of this door curtain makes the door curtain roll up on rolling up the curtain axle easily, and this door curtain has the fire prevention function, is applicable to the emergency exit in welding place.

Furthermore, the transparent observation curtain is made of flexible flame-retardant materials, the flexibility of the transparent observation curtain enables the transparent observation curtain to be easily rolled on a rolling curtain shaft, and the transparent observation curtain has a fireproof function and is suitable for safety doors in welding places. The transparent observing curtain also has an arc light prevention function, and is connected with the door curtain 4 in a heat seal or sticking mode and covered on the window of the door curtain.

Example 2

A security door with a viewing window as provided in example 1.

Furthermore, a transverse rib plate 7 is arranged on the door curtain 4, and the two ends of the rib plate 7 are provided with the limiting sliding blocks 6. When the rolling shaft 10 is reversed, the door curtain 4 unwinds the rolling shaft 10, and the door curtain 4 descends by the gravity of the door curtain itself and the rib plate.

Example 3

A security door with a viewing window as provided in example 1.

Furthermore, a sealing device is installed on the limiting track 3. Further, the sealing device is a brush sealing structure. Furthermore, the sealing device is a double-row brush sealing structure of a PVC base, so that more effective insect prevention and dust prevention can be realized. Further, the base is installed on the limiting track 3, and the brush is contacted with two sides of the door curtain 4.

Further, the driving device is externally provided with a motor sealing cover 2, and the rolling curtain sealing cover 1 is arranged outside the rolling curtain shaft 10.

Further, the transparent viewing curtain (also called arc-protection window) is arranged in the middle of the door curtain 4. Further, the shape of the transparent viewing curtain is selected from a square shape.

Further, photoelectric safety devices 5 are installed on the left and right sides of the safety door.

Further, the photoelectric safety device 5 is arranged at a position lower than the middle part of the safety door. The photoelectric safety device 5 is a correlation electric eye.

The correlation electric eye comprises a transmitting end and a receiving end, the transmitting end is arranged on one side (for example, the left side) of the safety door, and the receiving end is arranged on the other side (for example, the right side) of the safety door; the transmitting end emits red light or infrared light, and the receiving end receives the red light or infrared light. When an object passes through the safety door and red light or infrared light emitted by the emitting end is cut off in the descending process of the door curtain 4, the receiving end cannot receive the object, the receiving end sends a rising signal to the controller, after a signal receiving device of the controller receives the rising signal sent by the receiving end, a signal emitting device of the controller sends a forward rotation signal to a driving device, the driving device stops rotating reversely and turns to forward rotation, the driving device drives the roller shutter shaft 10 to rotate forward, the door curtain 4 rises, and the safety door is opened. When an object in the safety door penetrates through the safety door, no object exists below the door curtain, the receiving end receives red light or infrared rays emitted by the emitting end, the receiving end then emits a descending signal to the controller, after the signal receiving device of the controller receives the descending signal emitted by the receiving end, the signal emitting device of the controller emits a reverse signal to the driving device, the driving device receives the reverse signal and then reverses, the driving device drives the roller shutter shaft 10 to reverse, the door curtain 4 descends, and the safety door is closed. During the descending process of the door curtain 4, the door curtain 4 does not cut off the red light or the infrared light emitted by the emitting end.

Further, the lower end (also referred to as the bottom end) of the curtain 4 is provided with an airtight pocket 8. The airtight bag belongs to a sealing structure and is used for sealing a gap between the lower end of the door curtain and the ground.

Example 4

A security door with a viewing window as provided in example 2.

Further, the lower end (also referred to as the bottom end) of the curtain 4 is provided with an airtight pocket 8.

Further, the upper end of the airtight bag 8 is connected with the rib plate 7.

Example 5

A security door with a viewing window as provided in example 2.

Further, an airbag 8 is provided at a lower end (also referred to as a bottom end) of the curtain. The safety airbag 8 belongs to a safety structure, prevents a door curtain from falling down and smashing people or objects, and is used for ensuring the safety of the safety door.

Further, the upper end of the airbag is connected with the rib plate.

Example 6

A security door with a viewing window as provided in example 2.

Further, as shown in fig. 4, the airbag 8 is provided with a plurality of transverse partitioning walls 80 which form a cavity 801 therebetween.

Further, a first conductive metal sheet 81 is arranged on one partition wall of the cavity 801 of the safety airbag 8, a second conductive metal sheet 82 is arranged on the opposite partition wall, when the safety airbag deforms under the action of external force, the first conductive metal sheet is in contact with the second conductive metal sheet, a circuit connected with the first conductive metal sheet and the second conductive metal sheet of the safety airbag is communicated, when the circuit is communicated, a signal transmitting device of the controller sends a forward rotation signal to a driving device, the driving device stops rotating reversely, the driving device turns to forward rotation, the driving device drives a rolling shaft to rotate forward, a door curtain rises, and the safety door is opened, so that the door curtain or a rib plate of the safety door is prevented from hitting people or objects passing through the safety door, and the safety of the safety door is ensured.

When the door curtain descends, no person or object penetrates through the safety door, when the safety airbag is not acted by an external force, the door curtain descends until the lower end (also called bottom) of the safety airbag contacts with the ground, and the safety airbag is not deformed to enable the first conductive metal sheet to contact with the second conductive metal sheet, the limiting slide block contacts with the second stop sensor, the second stop sensor sends a stop signal to the controller, after the signal receiving device of the controller receives the stop signal, the signal transmitting device of the controller sends the stop signal to the driving device, the driving device stops rotating, the driving device drives the roller shutter shaft to stop rotating, and the door curtain stops descending.

Further, the rolling shutter shaft 10 is located in the inner cavity of the rolling shutter enclosure 1, and the motor is located in the inner cavity of the motor enclosure 2.

Further, be provided with door-hinge support seat 11 in the roll up curtain enclosure, roll up curtain axle 10 and erect on door-hinge support seat 11.

Further, the controller includes a manual switch including a curtain up switch and a curtain down switch. Opening a door curtain ascending switch, and ascending the door curtain; and closing the door curtain ascending switch, and stopping the ascending of the door curtain. Opening a door curtain descending switch, and descending the door curtain; and closing the door curtain descending switch to stop the descending of the door curtain.

Example 7

A security door with a viewing window as provided in example 6.

Further, the controller can receive signals sent by the robot and send signals to the robot. When the robot starts welding work, the robot sends a signal for closing the safety door to the controller, after a signal receiving device of the controller receives the signal for closing the safety door sent by the robot, a signal transmitting device of the controller sends a reverse signal to a driving device, the driving device reverses, the driving device drives the roller shutter shaft 10 to reverse, the roller shutter 4 descends, and the safety door is closed. When the robot finishes welding work, the robot sends a signal for opening the safety door to the controller, after a signal receiving device of the controller receives the signal for opening the safety door sent by the robot, a signal transmitting device of the controller sends a forward rotation signal to a driving device, the driving device forwards rotates, the driving device drives the rolling shutter shaft 10 to forwards rotate, the door curtain 4 ascends, and the safety door is opened.

Further, the controller includes a control panel. And a manual switch is arranged on the control panel. Further, the control panel comprises an outer control panel and an inner control panel; the outer side control panel is arranged on the outer side of the safety door, so that personnel can conveniently open and close the safety door outside the safety door; the inboard control panel installs the inboard at the emergency exit, and the personnel of being convenient for switch the emergency exit in the emergency exit.

Example 8

A security door with a viewing window as provided in example 7.

Further, as shown in fig. 5, the limiting track 3 includes a limiting guide strip, the limiting slide block 6 includes a limiting guide groove 61, and the limiting guide strip is disposed in the limiting guide groove 61. The limiting guide strip is used for increasing the sliding stability of the limiting sliding block in the limiting guide rail. The limiting slide block is not easy to shake under the clamping of the limiting guide strip.

Further, the limiting rail 3 comprises a first limiting guide strip 31, a second limiting guide strip 32 and a third limiting guide strip 33.

This application is through theoretical research and practical application to welding workstation emergency exit device of robot, proved the utility model provides an emergency exit with observation window can actively cooperate welding robot opening and closing door in the use to can ensure operating personnel to avoid the arc light injury in observing robot working process through preventing arc light observation window (transparent observation is worn), the door curtain of emergency exit rises and descends to operate steadily and rapidly, satisfy the demand to the high frequency switching of emergency exit in the big work piece processing of batch, it is effectual to keep apart, can keep apart weld zone and non-welding area furthest, protect personnel and property safety in the non-welding work area, also make the welding work area region neatly more pleasing to the eye simultaneously.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. All equivalent changes and modifications made according to the disclosure of the present invention are covered by the scope of the claims of the present invention.

Claims

1. The safety door with the observation window is characterized by comprising a door curtain, the observation window, a roller shutter shaft, a limiting rail and a driving device; the rolling shaft is positioned at the top end of the safety door, the driving device is connected with the rolling shaft, the upper end of the door curtain is connected with the rolling shaft, and the limiting rails are positioned at two sides of the door curtain; the observation window is arranged on the door curtain.

2. The security door with a viewing window of claim 1, wherein the driving means is installed at one side of a top end of the security door, and the rolling shaft is installed transversely to the top end of the security door; when the driving device drives the roller shutter shaft to rotate forwards, the door curtain rises along the limiting track and is wound on the roller shutter shaft from the upper end; when the driving device drives the roller shutter shaft to rotate reversely, the door curtain is unreeled from the roller shutter shaft and descends along the limiting track.

3. A security door having a viewing window according to claim 1, wherein said viewing window comprises a window opening and a transparent viewing curtain, said transparent viewing curtain overlying said window opening; the surface of the transparent observation curtain is provided with an ultraviolet-proof functional coating;

when the door curtain rises along the limiting rail, the safety door is opened; when the door curtain is unreeled from the roller shutter shaft and descends along the limiting track, the safety door is closed;

when the rolling shaft rotates forwards, upward pulling force is generated on the door curtain, and the door curtain rises and is rolled on the rolling shaft under the action of the pulling force; when the rolling shaft rotates reversely, the door curtain is unwound, and the door curtain descends under the action of gravity;

when the lower end of the door curtain rises to the position close to the roller shutter shaft, the driving device stops rotating, the roller shutter shaft stops rotating, the door curtain stops rising, and the safety door is completely opened; when the lower end of the door curtain descends to the ground, the driving device stops rotating, the rolling shutter shaft stops rotating, the door curtain stops descending, and the safety door is completely closed.

4. The security door with an observation window according to claim 1, further comprising a door frame, wherein the rolling shaft is located at the top end of the door frame, and the limiting rails are located on the door frame at both sides of the door curtain.

5. A security door with a viewing window according to claim 1, further comprising a controller, said controller including a signal receiving means and a signal transmitting means.

6. The safety door with the observation window according to claim 1, wherein limiting slide blocks are mounted on both sides of the door curtain and are placed in the limiting tracks; when the door curtain rises, the sliding block rises along the limiting track; when the door curtain descends, the sliding block descends along the limiting track.

7. A security door with a viewing window according to claim 1, wherein said security door is mounted with an electronic limit switch.

8. The security door with an observation window according to claim 6, wherein a transverse rib plate is provided on the door curtain, and the limiting slide blocks are provided at both ends of the rib plate.

9. A security door with a viewing window according to claim 1, wherein photoelectric safety devices are installed at left and right sides of the security door, and the photoelectric safety devices are disposed at a position lower than the middle of the security door.

10. A security door with a viewing window according to claim 1, wherein an airtight pocket or an airbag is provided at a lower end of the curtain.