Plug-pull escape door
Technical Field
The invention relates to the field of driving mechanisms, in particular to a sliding plug escape door.
Background
At present, a bus door, a ground iron door or a high-speed railway door is usually provided with a sliding plug door, the sliding plug door is good in sealing performance and small in occupied space, the overall bus type is attractive and elegant, the safety and sealing performance of the sliding plug door are directly affected by the advantages and disadvantages of the door lock of the sliding plug door, and in order to improve the safety of the sliding plug door, researchers in the field mainly put researched objects on the structure of the sliding plug door lock.
The currently used sliding plug door lock structure is usually characterized in that when a vehicle door is closed, a guide wheel on a door lock is guided into a guide groove through the guide groove on a vehicle frame, the movement of the door lock is limited through the guide groove, and the door lock is fixed on the vehicle door, so that the movement of the vehicle door is limited, and the aim of locking the door is fulfilled. On one hand, the door lock structure has great potential safety hazard, because the situation that the vehicle is in a running process and the road surface is hollow exists, the guide wheel on the door lock can roll back and forth in the guide groove, so that the sealing performance of the vehicle door is poor, air flow can enter the vehicle from a door gap during high-speed running to influence riding experience of passengers, and even the phenomenon that the guide wheel returns to slide out from the original path in the guide groove can occur when the vibration is large, so that the vehicle door can be automatically opened, and great potential safety hazard exists. On the other hand, in the door lock structure, the power source is fixed on the door frame, the driving end of the power source is fixed on the guide wheel, when the door is closed or opened, the force applied by the power source is totally applied to the guide wheel, the guide wheel is the only stress point, the guide wheel is easy to damage and accelerate due to stress concentration, and due to the fact that the stress point is only, when the door is closed or opened, absolute synchronization of the door plates at two sides cannot be guaranteed, so that absolute balance cannot be guaranteed when the door is closed or opened, and the door plates are easy to shake.
In order to solve the potential safety hazard problem, a common solution is to add an air cylinder or a motor to pull the guide wheel after the door is closed so that the guide wheel is limited in the guide groove, but the mode needs to always require a larger pulling force to limit the guide wheel after the door is closed, and the problem of instability during closing or opening the door is not solved well, and does not accord with the environment-friendly concept of the current society.
In addition, the safety accident of the bus is frequently generated, and the safety escape is important. The existing common escape window for buses and the windows on two sides can be manually or automatically opened under emergency conditions, so that passengers can escape from the windows. But escape windows have a great problem. Firstly, the passenger is not easy to turn over, especially the old and children cannot climb over, at a certain height. Secondly, the escape window has a certain height, and passengers can fall down after turning over the window, so that secondary injury is caused.
Disclosure of Invention
The invention aims at solving the problems in the prior art and provides the sliding plug escape door, wherein the fixed positions of the connecting shaft driving mechanism and the power source of the escape door are changed, so that the force originally concentrated on the guide wheel can be dispersed into the guide wheel and the connecting shaft driving mechanisms at the two sides of the guide wheel, when the escape door is opened or closed, the door plates at the two sides can be ensured to be opened or closed in absolute synchronization, the sliding plug escape door is very stable and reliable, the phenomenon that the guide wheel is automatically separated from the guide groove is effectively avoided, the damage of the guide wheel can be greatly reduced, the power is saved, and the environment is protected. In addition, the sliding plug escape door is opened towards two sides by being attached to the vehicle body when in emergency, does not occupy more space outside the vehicle, is not easy to touch obstacles outside the vehicle, and is easy to open.
The invention provides a plug escape door, which comprises a base fixed on the upper part of a door frame, wherein two ends of the base are respectively provided with a group of connecting shaft driving mechanisms, the two groups of connecting shaft driving mechanisms are fixedly connected through a sliding rod and are rotationally connected through a pull rod, the sliding rod is sleeved with at least one at most two sliding sleeves, a guide wheel rotationally connected with one sliding sleeve is limited in a guide groove on the base, each sliding sleeve is fixedly connected with a door plate through a door carrying frame, a gas spring is fixed on the pull rod, the telescopic end of the gas spring is fixedly connected with the sliding sleeve connected with the guide wheel, the connecting shaft driving mechanisms can do reciprocating motion relative to the base under the driving of the gas spring and external force respectively so as to drive the door plate to open and close, two sides of the door plate are respectively provided with at least one manually unlocked safety lock, and an unlocking piece of the safety lock is connected with the manually unlocked pull rod through an unlocking wire drawing.
Further, in the two groups of connecting shaft driving mechanisms, a sliding bracket is fixedly connected through the sliding rod, and a driving arm is rotationally connected through the pull rod; and one end of the driving arm is rotationally connected with the base, the other end of the driving arm is rotationally connected with the pull rod, and one end of the connecting arm is rotationally connected with the middle part of the driving arm, and the other end of the connecting arm is rotationally connected with the sliding support. When the sliding support moves to the limit position under the guiding of the guiding mechanism, the connecting shaft driving mechanisms at the two sides are in a self-locking state, at the moment, the rotation connection point of the pull rod and the driving arm, the rotation connection point of the driving arm and the base, the rotation connection point of the driving arm and the connecting arm, and the rotation connection point of the connecting arm and the sliding support are all located on the same straight line, at the moment, even if the external force of the power source on the pull rod is released, the four points are not easily separated from the straight line due to the fact that the four points are located on the same straight line, the connection arm and the sliding support rotate clockwise or anticlockwise around the rotation connection point of the driving arm and the base, and the sliding support arranged on the sliding sleeve moves along the sliding rod together with the sliding sleeve, and is of an integral structure with the sliding support at the two sides, so that when the sliding support is closed, the sliding support is just located in the guide groove, the four points are just located on the same straight line, the push force can be effectively released from the guide groove, the push force can be effectively reduced, the push force can be effectively released from the guide groove, and the door can be effectively released from the guide groove or the same, and the push force can be effectively prevented from being released from the same.
The guide mechanism is a guide wheel or a guide block, the guide wheel or the guide block is arranged on the sliding support and limited in a support guide groove formed in the base, and the guide wheel or the guide block can reciprocate in the support guide groove under the driving of the power source and the guide action of the support guide groove. The guide wheels or the guide blocks and the support guide grooves are arranged to enable the connecting shaft driving mechanisms to realize reciprocating motion, in practical application, at least one group of connecting shaft driving mechanisms is provided with the guide wheels or the guide blocks to be matched with the support guide grooves, and the guide wheels or the guide blocks can be arranged in the two groups of connecting shaft driving mechanisms to be matched with the support guide grooves; when the power source pulls or pushes the pull rod, the connecting arm is driven by the driving arm, and then the sliding support is driven to reciprocate up and down relative to the base under the cooperation of the guide wheel or the guide block and the support guide groove, and then the two groups of connecting shaft driving mechanisms, the pull rod, the power source, the sliding rod, the sliding sleeve and the guide wheel can reciprocate up and down relative to the base in absolute synchronization, so that the opening or closing absolute synchronization of the door plates at two sides is ensured, and the balance of the door plates at two sides when the door plates are closed or opened is effectively ensured.
Preferably, the support guide groove is a waist-shaped groove. The waist-shaped support guide groove enables the guide wheel or the guide block on the sliding support to do straight reciprocating motion along the support guide groove.
Preferably, the group of the connecting shaft driving mechanisms close to the guide wheels further comprises limiting blocks, the limiting blocks are fixed on the base, the limiting blocks and the pull rods are respectively located on two sides of the driving arms, when the rotation connecting points of the pull rods and the driving arms move to one side to the limit position, the limiting blocks abut against one side of the rotation connecting points of the driving arms and the pull rods, and when the rotation connecting points of the pull rods and the driving arms move to the other side to the limit position, the limiting blocks and the driving arms are not contacted with each other. The limiting block is arranged so that when the rotation connecting point of the pull rod and the driving arm moves to one side to reach an extreme position (at the moment, the door plate is closed), the limiting block butts against one side of the rotation connecting point of the driving arm and the pull rod, if the used power source is a driving cylinder, the rotation connecting point of the pull rod and the driving arm, the rotation connecting point of the driving arm and the base, the rotation connecting point of the driving arm and the connecting arm and the rotation connecting point of the sliding bracket are positioned on the same straight line, at the moment, the four points can be kept on the same straight line through the limiting block butts against one side of the rotation connecting point of the driving arm and the pull rod, even if the external force of the power source on the pull rod is released, the four points can not easily break away from the straight line due to being positioned on the same straight line, the guide wheel on the sliding sleeve moves along the sliding rod together, and the sliding rod is of an integral structure with the sliding brackets on two sides, so that when the door plate is closed, the guide wheel is just positioned in the guide groove, and in the same straight line, when the door plate is closed, the door plate can be released, or the power source can be kept on the same straight line, or the four points can be kept on the same straight line, even if the four points are not broken from the same straight line, the power source can be effectively, the self-locking effect can be effectively prevented from sliding the connecting point, and the motor can be effectively, and the self-locking effect can be prevented from being driven, and the side, and the self-locking effect can be realized, and the vehicle door can be effectively, and the self-locking effect can be more than the side can be effectively, and the side can be driven.
Preferably, the limiting block is fixedly connected to the base through an adjusting bolt. After the door plate is closed, if the power source is a driving cylinder, the limiting block is adjusted to prop against the rotating connection point of the driving arm and the pull rod when the four points are just positioned on the same straight line through the adjusting bolt, and if the power source is a driving motor, the limiting block is adjusted to prop against the rotating connection point of the driving arm and the pull rod after the four points just exceed the straight line through the adjusting bolt.
Further, sliding rollers are respectively mounted on one sides of sliding supports in the two groups of connecting shaft driving mechanisms, and the sliding rollers are matched with sliding rails arranged on the base. The sliding roller and the sliding rail are arranged to enable the reciprocating motion of the connecting shaft driving mechanism to be stable.
Preferably, the sliding rail is a U-shaped sliding rail.
Further, if the number of the sliding sleeves is two, two door plates are provided, two opposite side edges of the two door plates are respectively provided with a middle joint sealing rubber strip, opposite side edges, an upper side edge and a lower side edge are respectively provided with side joint sealing rubber strips, after the two door plates are closed, the middle joint sealing rubber strips on the two door plates are matched with each other in a mortise and tenon mode, the side joint sealing rubber strips on the two door plates are respectively matched with two side door frames, if the number of the sliding sleeves is one, the number of the door plates is one, four side edges of the door plates are respectively provided with the side joint sealing rubber strips, and after the door plates are closed, the side joint sealing rubber strips are respectively matched with the door frames on the four sides of the door plates. The arrangement of the middle seam sealing adhesive tape and the side seam sealing adhesive tape enables the sliding plug escape door to achieve the purpose of effectively sealing the door plate after the door plate is closed, and prevents the door plate from shaking, air inlet, rainwater inlet and the like in the running process of a vehicle.
Further, the both sides the adhesive tape body opposite sides of centre joint strip are provided with mortise and tenon fourth of twelve earthly branches complex mortise and tenon fourth of twelve earthly branches recess and mortise and tenon fourth of twelve earthly branches protruding, one side the mortise and tenon fourth of twelve earthly branches recess of adhesive tape body with the opposite side the mortise and tenon fourth of twelve earthly branches protruding of adhesive tape body sets up relatively, two the opposite sides of adhesive tape body is provided with respectively and is used for the centre joint door plant jack catch of card in the door plant section bar of both sides. When installing the centre joint strip on the door plant of both sides, with the centre joint door plant jack catch card of both sides adhesive tape body one side in the section bar of the opposite side of door plant of both sides can, need pay attention to above-mentioned mortise groove and the bellied positional relationship of mortise and tenon fourth of twelve earthly branches just can reach effectual sealed effect simultaneously.
Further, the mortise and tenon groove end parts of the adhesive tape body at two sides are respectively provided with a middle joint water guide strip. The setting of the middle joint water guide strip is in order to prevent that the outside rainwater of door plant from entering into the door plant through the clearance between the adhesive tape body of both sides, and the middle joint water guide strip can in time water conservancy diversion to the door plant bottom outflow with the rainwater that the clearance between the adhesive tape body of car outside through both sides.
Further, the outer walls of the opposite sides of the adhesive tape body at the two sides are respectively provided with a middle seam outer sealing edge. The middle joint outer sealing edge is used for sealing a gap between the rubber strip body and the outer wall plane of the door panel.
Further, the inner walls of the opposite sides of the adhesive tape body at the two sides are respectively provided with a middle joint inner sealing edge. The inner sealing edge of the middle seam is used for sealing a gap between the rubber strip body and the inner wall plane of the door panel.
Further, one side of the side seam sealing rubber strip opposite to the door plate is provided with a side seam door plate claw used for being clamped in the door plate section bar. And when the side seam sealing adhesive tape is installed, the side seam door plate clamping jaw at one side of the side seam sealing adhesive tape is clamped in the door plate profile.
Further, the outer wall of the side seam sealing rubber strip, which is positioned on the same side with the side seam door plate clamping jaw, is also provided with a door plate sealing edge. The door plate sealing edge is used for sealing a gap between the edge joint sealing adhesive tape and the outer wall plane of the door plate.
Further, the side seam joint strip is provided with a door frame sealing edge on the outer side of one side of the door frame opposite to the door frame. The sealing edge of the door frame is used for sealing a gap between the edge joint sealing adhesive tape and the plane of the outer wall of the door frame.
Further, the side seam sealing rubber strip is provided with a side seam water guide strip relative to the inner wall of one side of the door frame. The setting of side seam water guide strip is in order to prevent that the outside rainwater of door plant from entering into the door plant through the clearance between side seam joint strip and the door frame, and the side seam water guide strip can in time water conservancy diversion to the door plant bottom outflow with the outside rainwater that gets into.
Further, a buffer hollow cavity is arranged in the adhesive tape body of the side seam sealing adhesive tape. The arrangement of the buffer hollow cavity can play a certain buffering role on the edge joint sealing rubber strip when the door is closed, meanwhile, the edge joint sealing rubber strip has a larger deformation effect after being extruded by the door frame, the sealing effect of the edge joint sealing rubber strip is improved, and on the other hand, the weight of the edge joint sealing rubber strip can be reduced, and the raw material cost is saved.
Further, the plug escape door further comprises a pneumatic unlocking cylinder arranged on the door frame, and the telescopic end of the pneumatic unlocking cylinder is connected with the unlocking piece of each safety lock through unlocking wiredrawing. The setting of pneumatic unblock cylinder makes the opening of safety lock can pneumatic open, and the operation only needs the opening button of touching pneumatic unblock cylinder slightly, and pneumatic unblock cylinder both can both through the unlocking plate of the automatic pulling safety lock of unblock wire drawing after ventilating, need not both can easily unblock through pulling manual unblock pull rod.
Further, the sliding plug escape door further comprises a driving air cylinder, wherein the driving air cylinder is fixed on the pull rod, and the telescopic end of the driving air cylinder is fixedly connected with the sliding sleeve connected with the guide wheel. Because the sliding sleeve connected with the guide wheel can be pulled by the telescopic end of the driving cylinder after the sliding plug escape door is sprung out through the gas spring, the sliding sleeve returns to the guide groove along the slide rod with the guide wheel, in the process, the driving cylinder always overcomes the elasticity of the gas spring to compress the gas spring to an initial state, and if the driving cylinder is not used, the sliding plug escape door is closed after being opened, and manual door closing is very laborious.
Further, a door plate guiding mechanism consisting of a rotating block, a first guiding wheel and a second guiding wheel is further arranged on one side of the bottom of the door plate, one end of the rotating block is horizontally and rotatably connected to the door frame through a fixing block, the first guiding wheel and the second guiding wheel are vertically and rotatably connected to the upper surface of the rotating block through rotating shafts respectively, the first guiding wheel is located in a bottom guide groove of the door plate, and the second guiding wheel is located outside the bottom guide groove. The door plate guide mechanism can limit the moving track of the bottom of the door plate, so that the door plate guide mechanism can keep synchronous movement with the top of the door plate.
Further, an arc-shaped guide groove is formed in the position, close to the bottom edge of the door frame, of the door plate, when the door plate is closed, the second guide wheel is located in the arc-shaped guide groove, and when the door plate is opened, the second guide wheel is located outside the arc-shaped guide groove.
Further, a positioning roller is further arranged at the bottom of the door plate and at the other side opposite to the door plate guiding mechanism, and a guiding positioning groove matched with the positioning roller is formed in the bottom of the door frame. The positioning rollers and the guide positioning grooves are also arranged to limit the movement track of the bottom of the door plate, so that the door plate can synchronously move with the top of the door plate.
Further, if the number of the sliding sleeves is two, the escape door is a double-plug escape door, and the plug escape door further comprises a wire drawing wheel and two wire drawing wheels respectively fixed on the two groups of connecting shaft driving mechanisms, wherein two ends of the wire drawing wheel are connected with one sliding sleeve after respectively winding around the two wire drawing wheels. The plug-pull escape door can be a single plug-pull escape door or a double plug-pull escape door, and the single plug-pull escape door can be changed into the double plug-pull escape door by only adding one wire drawing wheel, two wire drawing wheels and a sliding sleeve.
Preferably, the sliding rod and the pull rod are parallel to each other. The design can realize the same in and out of the slide bar, the pull bar, the two groups of connecting shaft driving mechanisms, the sliding sleeve, the gas spring and the guide wheel.
The working principle is that in the plug-pull escape door, the gas spring is always in a compressed state when the door plate is closed, when the door plate needs to be opened in an emergency, the manual unlocking pull rod is pulled, the unlocking piece of the safety lock is pulled to unlock through unlocking wire drawing, at the moment, the locking force of the safety lock is lost due to the fact that the plug-pull escape door is in a compressed state, and at the moment, the gas spring rapidly stretches to push the sliding sleeve connected with the gas spring to one side along the sliding rod, and the guide wheel is driven to move out of the guide groove. Meanwhile, the gas spring can also have acting force on the pull rod opposite to the sliding sleeve, so that the pull rod is driven to pull the two-side connecting shaft driving mechanisms and the sliding rod to do linear motion outwards, and under the double functions, the sliding sleeve drives the door plate to open through the door carrying frame.
The plug-pull escape door has the advantages that:
(1) Because the gas spring in the sliding plug escape door is fixed on the pull rod, and the driving end of the gas spring is fixedly connected with the sliding sleeve, when the gas spring pushes the sliding sleeve to slide along the sliding rod to open the door plate, the gas spring can also do linear motion along with the connecting shaft driving mechanisms at two sides to the outside of the vehicle, so that the gas spring can push the sliding sleeve to move, and can also pull the pull rod to move in the opposite direction according to the interaction of the force, so that when the door plate is opened, the force applied by the gas spring to the sliding sleeve (namely the force applied by the gas spring to the guide wheel) can not be only applied to the guide wheel, but also can be dispersed to the connecting shaft driving mechanisms at two sides, the damage of the guide wheel can be greatly reduced, the power is saved, and the sliding plug escape door is green and environment-friendly.
(2) Because the structure of this plug-draw escape door sets up, the even axle actuating mechanism of both sides, middle guide pulley, slide bar, pull rod and air spring all can be absolute synchronous to outside the car do rectilinear motion for the power that disperses on the even axle actuating mechanism of guide pulley and both sides can keep balance at the three points, thereby guaranteed that this plug-draw escape door can be very steady when closing or opening.
(3) In this cock sliding escape door, under the exogenic action, the guide pulley on the escape door can be with the synchronous linear motion of carriage to the car, when the door plant closes under the effect of axle actuating mechanism, the guide pulley just is located the guide slot, if the power supply is the actuating cylinder, just above-mentioned four points are on same straight line this moment, just so can just need exert less pulling force on the pull rod when the door plant closes, just can guarantee above-mentioned four points and do not break away from same straight line, just can effectively prevent that the guide pulley from sliding out from the guide slot, play effectual door auto-lock effect under the normal circumstances of car condition, save power, green.
(4) The sliding plug escape door is opened towards two sides by being attached to the vehicle body when in emergency, does not occupy more space outside the vehicle, is not easy to touch obstacles outside the vehicle, and is easy to open.
(5) The sliding-plug escape door can be a single-sliding-plug escape door or a double-sliding-plug escape door.
Drawings
FIG. 1 is a front view of a double plug escape door when closed;
FIG. 2 is a top view of the dual plug escape door when closed;
FIG. 3 is an enlarged schematic view of the structure in the broken line coil in FIG. 1;
fig. 4 is a front view of the double plug escape door when opened;
FIG. 5 is a top view of a double-plug escape door when open;
FIG. 6 is a schematic view of the overall structure of the double-plug escape door when closed (gas spring not shown);
FIG. 7 is a schematic view of a portion of the structure of FIG. 6;
fig. 8 is an enlarged schematic view of the structure within the dashed line circle S1 in fig. 7;
Fig. 9 is an enlarged schematic view of the structure within the dashed line circle S2 in fig. 7;
fig. 10 is a schematic view of the overall structure of the double-plug escape door when opened (gas spring not shown);
FIG. 11 is a schematic view of a portion of the structure of FIG. 10;
FIG. 12 is an enlarged view of the broken line S1 in FIG. 11;
FIG. 13 is an enlarged view of the structure of the broken line S2 in FIG. 11;
Fig. 14 is a schematic view of the overall structure of the double-plug escape door when closed;
fig. 15 is an enlarged schematic view of the structure within the dashed line circle S1 in fig. 14;
FIG. 16 is an enlarged view of the broken line S2 in FIG. 14;
FIGS. 17 and 18 are schematic perspective views of a door panel guide mechanism;
FIG. 19 is a top view of a portion of the structure of a double-plug escape door when closed;
FIG. 20 is a schematic view of a portion of the structure of FIG. 19;
FIG. 21 is a top view of a portion of the structure of a double-plug escape door when opened;
FIG. 22 is a schematic view of a portion of the structure of FIG. 21;
FIG. 23 is a top view of the spindle drive mechanism with the door panel fully closed;
FIG. 24 is a top view of the coupling drive mechanism in a door panel ajar state;
FIG. 25 is a top view of the spindle drive mechanism with the door panel fully open;
FIG. 26 is a cross-sectional view of the center seam sealing strip assembly after being joined to a door panel;
FIG. 27 is a cross-sectional view of the center seam sealing bead assembly;
FIG. 28 is a cross-sectional view of the side seam sealing tape after being combined with the door panel and the door frame;
FIG. 29 is a cross-sectional view of a side seam sealing strip;
The sectional view of the combined inner joint strip with the door panel and the door frame in fig. 30 is shown, wherein a base 1, a bracket guide groove 101, a guide groove 102, a roller guide groove 103, a connecting shaft driving mechanism 2, a sliding bracket 201, a driving arm 202, a connecting arm 203, a limiting block 204, an adjusting bolt 205, a sliding rod 3, a pull rod 4, a sliding sleeve 5, a wire drawing 6, a wire drawing wheel 7, a guide wheel 8, a driving cylinder 9, a door carrying frame 10, a door panel 11, a bottom guide groove 1101, an arc-shaped guide groove 1102, a positioning roller 1103, a sliding roller 12, a sliding rail 13, a guide wheel or guide block 14, a door panel guide mechanism 15, a rotating block 1501, a first guide wheel 1502, a second guide wheel 1503, a fixed block 1504, an inner joint strip 16, a middle joint strip sealing 18, a strip body 1801, a tenon-and-mortise groove 1802, tenon-and-mortise guide protrusions 1803, a middle joint guide strip 1804, a middle joint door panel claw 1805, a middle joint outer sealing edge 1806, a middle joint inner sealing edge 1807, a hollow cavity 1808, edge joint sealing strip 19, edge joint 1901, door panel sealing edge 1903, door frame sealing edge 1904, side guide groove 1904, buffer air cylinder guide groove 19022, and unlocking air cylinder guide groove 20, and unlocking air door frame opening guide groove 20.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
Embodiment 1:
The present embodiment provides a double plug-pull escape door, as shown in fig. 1 to 11 and 19 to 25, which mainly comprises a base 1 fixed on a door frame 20, two groups of connecting shaft driving mechanisms 2, a sliding rod 3, a pull rod 4, two sliding sleeves 5, a wire drawing 6, two wire drawing wheels 7, a guide wheel 8, a gas spring 21, two door frames 10, two door plates 11, four safety locks 25 and a manual unlocking pull rod 24.
Two groups of connecting shaft driving mechanisms 2 are respectively arranged at two ends of the upper part of the base 1, the two groups of connecting shaft driving mechanisms 2 mainly comprise sliding supports 201, driving arms 202 and connecting arms 203, the sliding supports 201 in the two groups of connecting shaft driving mechanisms 2 are fixedly connected through sliding rods 3, the driving arms 202 are rotatably connected through pull rods 4, and the sliding rods 3 are parallel to the pull rods 4. In the two groups of connecting shaft driving mechanisms 2, a sliding support 201 in one group is arranged on a base 1 through a guiding mechanism and can reciprocate relative to the base 1 under the action of external force and the guiding mechanism, the guiding mechanism is a guiding wheel or a guiding block 14, the guiding wheel or the guiding block 14 is arranged on the sliding support 201, the guiding wheel or the guiding block 14 is limited in a waist-shaped support guide groove 101 arranged on the base 1, and the guiding wheel or the guiding block 14 can reciprocate in the support guide groove 101 under the driving of the external force and the guiding action of the support guide groove 101. The sliding support 201 side of the two groups of connecting shaft driving mechanisms 2 is also respectively provided with a sliding roller 12, and the sliding rollers 12 are matched with the U-shaped sliding rail 13 arranged on the base 1. One end of a driving arm 202 in the connecting shaft driving mechanism 2 is rotationally connected with the base 1, the other end of the driving arm is rotationally connected with the pull rod 4, one end of a connecting arm 203 is rotationally connected with the middle part of the driving arm 202, and the other end of the connecting arm is rotationally connected with the sliding support 201. The group of the connecting shaft driving mechanisms 2 close to the guide wheels 8 further comprises limiting blocks 204 fixed on the base 1 through adjusting bolts 205, and the limiting blocks 204 and the pull rods 4 are respectively positioned on two sides of the driving arms 202.
When the rotation connection point of the pull rod 4 and the driving arm 202 moves to one side to the limit position, the limiting block 204 is propped against one side of the rotation connection point of the driving arm 202 and the pull rod 4, at the moment, the rotation connection point of the pull rod 4 and the driving arm 202, the rotation connection point of the driving arm 202 and the base 1, the rotation connection point of the driving arm 202 and the connection arm 203 and the rotation connection point of the connection arm 203 and the sliding support 201 are positioned on the same straight line, and when the rotation connection point of the pull rod 4 and the driving arm 202 moves to the other side to the limit position, the limiting block 204 and the driving arm 202 are not contacted with each other.
The sliding rod 3 is sleeved with two sliding sleeves 5, two ends of a wire drawing 6 are respectively connected with the two sliding sleeves 5 after bypassing two wire drawing wheels 7 fixed on the two sliding brackets 201, a guide wheel 8 rotatably connected to one sliding sleeve 5 is limited in a guide groove 102 on the base 1, the two sliding sleeves 5 are respectively fixedly connected with a door plate 11 through a portal frame 10, a gas spring 21 is fixed on the pull rod 4, and the telescopic end of the gas spring is fixedly connected with the sliding sleeve 5 connected with the guide wheel 8. The safety lock 25 of manual unblock is installed respectively in two door plant 11 both sides, and manual unblock pull rod 24 is fixed at the carriage inner wall, and manual unblock pull rod 24 is connected with the unblock piece of safety lock 25 through unblock wire drawing 23.
The working principle of the sliding plug escape door in the embodiment is as follows:
When the emergency situation needs to be opened, the manual unlocking pull rod 24 is pulled, the unlocking piece of the safety lock 25 is pulled through the unlocking wire drawing 23 to unlock, at the moment, the emergency situation is that the emergency situation is met, the safety lock 25 is locked due to the fact that the emergency situation is met, the air spring 21 is always in a compressed state when the door plate 11 is closed, at the moment, the air spring 21 rapidly stretches to push the sliding sleeve 5 connected with the emergency situation along the sliding rod 3, the sliding sleeve 5 on two sides slides in opposite directions along the sliding rod 3 under the action of the wire drawing 6, and then the guide wheel 8 follows the sliding sleeve 5 and moves out of the guide groove 102 under the guiding action of the guide groove 102. Meanwhile, the air spring 21 also has acting force opposite to the sliding sleeve 5 on the pull rod 4, so that the pull rod 4 is driven to pull the two-side connecting shaft driving mechanism 2 and the sliding rod 3 to linearly move towards the outer side of the vehicle, and the specific process is as follows:
The air spring 21 drives the rotation connection point between the pull rod 4 and the driving arm 202 in the two-side connecting shaft driving mechanism 2 to be far away from the rotation connection point between the connecting arm 203 and the sliding support 201, so that the driving arm 202 rotates anticlockwise around the rotation connection point between the driving arm 202 and the base 1, the connecting arm 203 rotates clockwise around the rotation connection point between the driving arm 202 and the sliding support 201 in the one-side connecting shaft driving mechanism 2 is further forced to linearly move towards the outer side of the vehicle relative to the support guide groove 101 under the double guiding action of the guide wheel 14, the support guide groove 101 and the sliding roller 12 and the sliding rail 13, the sliding support 201 in the other-side connecting shaft driving mechanism 2 is linearly moved towards the outer side of the vehicle relative to the support guide groove 101 under the action of the sliding roller 12 and the sliding rail 13, the guide wheel 8 and the door carrying frame 10 arranged on the sliding sleeve 5 are both sides and are moved along the sliding sleeve 5, the sliding rod 3 and the pull rod 4 are connected with the sliding support 201 on both sides, so that when the sliding support 201 moves to the limit position of the support guide groove 101 close to the outer side of the vehicle, the sliding sleeve 3, the air spring 21, the sliding sleeve 5 and the guide wheel 10 and the door carrying frame 11 are linearly moved towards the outer side of the door plate 11 under the action of the door plate 11.
Embodiment 2:
This embodiment is a further improvement of embodiment 1, and is mainly improved in that in embodiment 1, when the emergency situation is over and the opened double-plug safety door needs to be closed, the escape doors on both sides need to be manually pushed to the middle by a person to be closed, and then the four safety locks 25 on both sides need to be locked again, and because the escape doors are in an emergency open state by the gas spring 21, the gas spring 21 is always in an extended state, and if the escape doors on both sides are manually pushed to the middle to close the escape doors, the time and effort are wasted, and the operation is difficult. In the present embodiment, however, the above-described drawbacks can be effectively overcome.
Specifically, the double plug door in this embodiment further includes a driving cylinder fixed to the pull rod, and the telescopic end of the driving cylinder is fixedly connected to the sliding sleeve 5 to which the guide wheel 8 is connected. After the sliding plug escape door is sprung out through the air spring 21, the telescopic end of the driving air cylinder 9 is also lengthened due to the fixed connection with the sliding sleeve 5, when the escape door needs to be closed, the driving air cylinder 9 can be started, the telescopic end of the driving air cylinder is compressed to pull the sliding sleeve 5 connected with the guide wheel 8, the sliding sleeve 5 returns to the guide groove 102 along the sliding rod 3 with the guide wheel, in the process, the driving air cylinder 9 needs to overcome the elastic force of the air spring 21 all the time, the air spring 21 is compressed to an initial state (a door closing state), and the escape door is automatically closed through the driving air cylinder 9, so that labor is greatly saved. The specific process is as follows:
The sliding sleeve 5 connected with the guide wheel 8 is pulled to slide along the sliding rod 3 through the contraction of the telescopic end of the driving cylinder 9, the sliding sleeves 5 on two sides slide relatively along the sliding rod 3 under the action of the wire drawing 6 and the wire drawing wheel 7, and the guide wheel 8 follows the sliding sleeve 5 and moves into the guide groove 102 under the guiding action of the guide groove 102. Meanwhile, the motion of the sliding sleeve 5 connected with the guide wheel 8 compresses the gas spring 21, and the driving cylinder 9 also has acting force opposite to the sliding sleeve 5 connected with the guide wheel 8 on the pull rod 4 to drive the pull rod 4 to push the two-side connecting shaft driving mechanism 2 and the sliding rod 3 to linearly move towards the inner side of the vehicle, and the concrete process is as follows:
The driving cylinder 9 drives the rotation connection point between the pull rod 4 and the driving arm 202 in the two-side connecting shaft driving mechanism 2 to approach the rotation connection point between the connecting arm 203 and the sliding support 201, so that the driving arm 202 rotates clockwise around the rotation connection point between the driving arm 202 and the base 1, the connecting arm 203 rotates anticlockwise around the rotation connection point between the driving arm 202, the sliding support 201 in the one-side connecting shaft driving mechanism 2 is forced to linearly move towards the inner side of the vehicle relative to the support guide groove 101 under the double guiding action of the guide wheel 14, the support guide groove 101 and the sliding roller 12 and the sliding rail 13, and the sliding support 201 in the other-side connecting shaft driving mechanism 2 moves towards the inner side of the vehicle relative to the support guide groove 101 under the double guiding action of the sliding roller 12 and the sliding rail 13, and when the sliding support 201 moves to the limit position of the support guide groove 101 near the inner side of the vehicle, the sliding rod 3, the pull rod 4, the driving cylinder 9, the sliding sleeve 5, the guide wheel 8 and the door carrying frame 10 fixed below the door plate 10 move towards the inner side of the vehicle along with the sliding support 201, and the door plate 11 at the two sides of the door plate 11 move towards the inner side of the vehicle. At this time, the gas spring 21 is in an initial compressed state, and then the four safety locks 25 on both sides are locked again.
In the above process, when the guide wheel 14 of the sliding support 201 moves to the limit position of the support guide groove 101 near the vehicle outer side, the connecting shaft driving mechanisms 2 on two sides are in a self-locking state, at this time, the rotation connection point of the pull rod 4 and the driving arm 202, the rotation connection point of the driving arm 202 and the base 1, the rotation connection point of the driving arm 202 and the connection arm 203 and the rotation connection point of the sliding support 201 are all located on the same straight line, the limiting block 204 just abuts against one side of the rotation connection point of the pull rod 4 and the driving arm 202, at this time, even if the external force of the driving cylinder 9 on the pull rod 4 is released, the four points are not easily separated from the straight line due to being located on the same straight line, so that the pulling force of the driving cylinder 9 can be released when the door panel 11 is closed, or the driving cylinder 9 can be ensured not to be separated from the same straight line due to the fact that only a small pulling force is applied, in order to prevent the two door panels on two sides from being reopened due to the elasticity of the air spring 21, the safety lock 25 is installed on two sides of the door panel of the sliding door to further fix the two door panels 11, the sliding door panel 8 can be effectively prevented from sliding out of the guide groove 102, and the automatic escape door opening can be avoided.
Because the driving cylinder 9 in the plug escape door is fixed on the pull rod 4, the driving end of the driving cylinder 9 is fixedly connected with the sliding sleeve 5, when the driving cylinder 9 pulls or the gas spring 21 pushes one side of the sliding sleeve 5 to slide the two sides of the sliding sleeve 5 relatively or oppositely along the sliding rod 3 to close or open the door plate 11, the driving cylinder 9 and the gas spring 21 can also reciprocate along with the sliding support 201 in the connecting shaft driving mechanism 2 on the two sides relative to the base 1, so that the driving cylinder 9 or the gas spring 21 can pull or push the pull rod 4 to move in opposite directions according to the interaction of the force while pulling or pushing the sliding sleeve 5, and therefore when the door plate 11 on the two sides is closed or opened, the driving cylinder 9 or the gas spring 21 applies force to the sliding sleeve 5 (namely, the force applied by the driving cylinder 9 or the gas spring 21 to the guide wheel 8) can not only be applied to the guide wheel 8, but also can be dispersed to the connecting shaft driving mechanism 2 on the two sides, and the connecting shaft driving mechanism 2 on the two sides can be dispersed, and the connecting shaft driving mechanism 2 on the two sides can keep the sliding rod 8 relatively smooth and the sliding sleeve 1 on the two sides, and the sliding sleeve 1 can be kept to be closed or balanced when the sliding rod 4 and the sliding sleeve 1 is opened relatively or opened.
Otherwise, this embodiment is identical to embodiment 1, and a description thereof will be omitted.
Embodiment 3:
In embodiment 2, when the emergency is over, the manual unlocking lever is manually pulled first, the unlocking piece of the safety lock 25 is pulled by the unlocking wire 23, then the gas spring 21 is quickly extended to open the door panel, the manual unlocking lever is pulled by manpower, and if the old or the child without strength is not easily pulled, the optimal escape opportunity is easily lost, so in the embodiment, the pneumatic unlocking cylinder 22 is also installed on the inner wall of the carriage of the double-plug escape door, and the telescopic end of the pneumatic unlocking cylinder 22 is connected with the unlocking piece of each safety lock 25 through the unlocking wire 23.
The pneumatic unlocking cylinder 22 is arranged to enable the safety lock 25 to be opened pneumatically, the operation is that only the opening button of the pneumatic unlocking cylinder 22 is required to be touched lightly, and after the pneumatic unlocking cylinder 22 is ventilated, the unlocking piece of the safety lock 25 can be automatically pulled through the unlocking wire drawing 23, and the safety lock can be unlocked easily without pulling the manual unlocking pull rod 24.
Otherwise, this embodiment is identical to embodiment 2, and a detailed description thereof will be omitted.
Embodiment 4:
The structure of the single-plug escape door is substantially the same as that of the double-plug escape door in the embodiment 1, only one sliding sleeve 5, wire drawing 6 and two wire drawing wheels 7 in the double-plug escape door are needed to be removed, and the rest structures and working principles are completely the same, so that redundant description is omitted.
Embodiment 5:
In the sliding plug escape door of embodiment 1, only the top ends of the door panels 11 at both sides enter the guide groove 102 through the guide wheel 8 to be positioned, and the bottom ends of the door panels 11 are not provided with a positioning mechanism, so that the bottom ends of the door panels 11 are easy to shake when a vehicle encounters a bump condition during running. In this embodiment, the door plate guiding mechanism 1515 for positioning the bottom ends of the door plates 11 on both sides is additionally arranged in the sliding plug escape door, so that the movement track of the bottom of the door plate 11 can be limited, and the bottom ends of the door plates 11 on both sides can be synchronously moved with the top of the door plate 11, so that the situation that the bottom ends of the door plates 11 on both sides shake unstably in the driving process can be effectively avoided.
Specifically, as shown in fig. 1,3, 4, 6, 9, 10, 14, 17 and 18, in the sliding plug escape door in this embodiment, a door panel guiding mechanism 15 comprising a rotating block 1501, a first guiding wheel 1502 and a second guiding wheel 1503 is further disposed at one side of the bottom of the door panel 11, one end of the rotating block 1501 is horizontally and rotatably connected to the door frame 20 through a fixing block 1504, the first guiding wheel 1502 and the second guiding wheel 1503 are vertically and rotatably connected to the upper surface of the rotating block 1501 through rotating shafts, the first guiding wheel 1502 is located in a bottom guiding groove 1101 of the door panel, and the second guiding wheel 1503 is located outside the bottom guiding groove 1101. An arc-shaped guide groove 1102 is further formed in the door panel 11 near the bottom edge of the door frame 20, the second guide wheel 1503 is located in the arc-shaped guide groove 1102 when the door panel 11 is closed, and the second guide wheel 1503 is located outside the arc-shaped guide groove 1102 when the door panel 11 is opened.
When the door panel 11 is closed, the first guide wheel 1502 and the second guide wheel 1503 roll inside and outside the bottom guide groove 1101 respectively, the rotating block 1501 is forced to rotate, the first guide wheel 1502 pulls the bottom of the door panel 11 to move towards the inside of a carriage, when the door panel 11 is opened, the first guide wheel 1502 pushes the bottom of the door panel 11 to move towards the outside of the carriage, the moving track of the bottom of the door panel 11 can be limited, the bottom of the door panel 11 can be kept to move synchronously with the top of the door panel 11, and the situation that the bottom ends of the door panels 11 on two sides shake unstably in the driving process is effectively avoided.
In addition, in order to further limit the movement track of the bottom of the door panel 11, the bottom of the door panel 11 keeps synchronous movement with the top of the door panel 11, so that the situation that the bottom ends of the door panels 11 at two sides shake unstably in the driving process is avoided. In the present embodiment, a positioning roller 1103 is further provided on the other side of the bottom of the door panel 11 opposite to the door panel guide mechanism 15, and a guide positioning groove 2001 matching the positioning roller 1103 is provided on the bottom of the door frame 20. The positioning roller 1103 is positioned in the guide positioning groove 2001 when the door panel 11 is closed, and the positioning roller 1103 is moved out of the guide positioning groove 2001 when the door panel 11 is opened.
Otherwise, this embodiment is identical to embodiment 1, and a description thereof will be omitted.
Embodiment 6:
The present embodiment is a further improvement of embodiment 5, and the main improvement is that, in the sliding plug escape door in embodiment 5, after the two side door panels 11 are closed, the tightness is insufficient due to a certain gap between the two side door panels 11 and the door frame 20, wind or rain is easy to enter the vehicle through the gap, and in addition, the gap also causes the two side door panels 11 to shake unevenly during the running process of the vehicle. In the present embodiment, the center joint sealing strip 18 and the side joint sealing strip 19 are added to effectively solve the above-described problem.
Specifically, as shown in fig. 26 to 29, in the sliding plug escape door of the present embodiment, the center seam sealing rubber strips 18 are respectively mounted on opposite side edges and upper and lower side edges of the two door panels 11, the side seam sealing rubber strips 19 (for external sealing) or the inner sealing rubber strips 16 are respectively mounted on opposite side edges and upper and lower side edges (for internal sealing, as shown in fig. 30, one side is clamped in the profile inside the door panels 11 by the clamping jaws, and the other side is extruded between the door frames 20 to achieve a sealing state when the door is closed), after the two side door panels 11 are closed, the center seam sealing rubber strips 18 on the two side door panels 11 are in mortise-tenon fit with each other for sealing, and the side seam sealing rubber strips 19 on the two side door panels 11 are respectively in fit with the two side door frames 20 and the top base 1. The adhesive tape body 1801 opposite sides of two sides joint sealing adhesive tape 18 are provided with mortise groove 1802 and mortise protrusion 1803 of mortise and tenon cooperation respectively, the protruding 1803 position of mortise and tenon has cavity 1808, the mortise groove 1802 of one side adhesive tape body 1801 and the protruding 1803 of mortise and tenon of opposite side adhesive tape body 1801 set up relatively, the mortise groove 1802 tip of two sides adhesive tape body 1801 still is provided with the centre joint water guide strip 1804 respectively, the opposite side of two adhesive tape bodies 1801 is provided with the centre joint door plant jack catch 1805 that is used for the card in the door plant 11 section bar of both sides respectively, opposite side outer wall still is equipped with centre joint outer seal edge 1806 respectively, opposite side inner wall still is equipped with centre joint inner seal edge 1807 respectively. The side seam sealing adhesive tape 19 is provided with a side seam door plate claw 1901 which is used for being clamped in the door plate 11 section bar on the side opposite to the door plate 11, the outer wall of the side seam sealing adhesive tape 19 positioned on the same side with the side seam door plate claw 1901 is also provided with a door plate sealing edge 1902, the outer side of the side seam sealing adhesive tape 19 opposite to the door frame 20 is provided with a door frame sealing edge 1903, the inner wall of the side opposite to the door frame 20 is provided with a side seam water guide strip 1904, and a buffer hollow cavity 1905 is arranged in the side seam sealing adhesive tape 19.
When the middle seam sealing adhesive tape 18 is installed on the two side door panels 11, the middle seam door panel clamping claws 1805 on one side of the two side adhesive tape body 1801 are clamped in the section bars on the opposite sides of the two side door panels 11, and when the side seam sealing adhesive tape 19 is installed, the side seam door panel clamping claws 1901 on one side of the side seam door panel clamping claws 1901 are clamped in the section bars of the door panels 11.
When the door plates 11 on two sides are closed, the mortise grooves 1802 in the middle joint sealing adhesive tape 18 are matched with the mortise protrusions 1803 in a mortise extrusion mode, and the middle joint water guide strips 1804 can guide rainwater entering from the outside of the automobile to the bottom of the door plate 11 in time through gaps between adhesive tape bodies 1801 on two sides, so that the outer sealing edges 1806 of the middle joint effectively seal gaps between the middle joint sealing adhesive tape 18 and the outer wall plane of the door plate 11, and the inner sealing edges 1807 of the middle joint effectively seal gaps between the middle joint sealing adhesive tape 18 and the inner wall plane of the door plate 11. The door panel sealing edge 1902 in the edge joint sealing adhesive tape 19 effectively seals the gap between the edge joint sealing adhesive tape 19 and the outer wall plane of the door panel 11, the door frame sealing edge 1903 effectively seals the gap between the edge joint sealing adhesive tape 19 and the door frame 20 and the outer wall plane of the base 1, and the edge joint water guide strip 1904 can guide rainwater entering from the outside of the automobile through the gap between the edge joint sealing adhesive tape 19 and the door frame 20 to the bottom of the door panel 11 in time and flow out.
The matched use of the middle seam sealing adhesive tape 18 and the side seam sealing adhesive tape 19 ensures that the sliding plug escape door can achieve the purpose of effectively sealing the door panel 11 after the door panel 11 is closed, and prevents the door panel 11 from shaking, air intake, rainwater intake and the like in the running of a vehicle.
Otherwise, this embodiment is identical to embodiment 5, and a detailed description thereof will be omitted.
The foregoing embodiments are merely illustrative of the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the present invention and to implement the same, not to limit the scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.