CN205532019U - Single division of sliding plug door system - Google Patents

Abstract

The utility model discloses a single division of sliding plug door system, this system is including being fixed in the motor on the crossbeam, and the motor is connected with the controller, the hub connection lead screw of motor is equipped with nut component on the lead screw, nut component include the nut and with nut rigid connection's follow -up part, the nut is vice with lead screw component helical motion, is equipped with the gear frame in the nut outside, is equipped with the torsional spring between this gear frame and the nut, the torsional spring uses the gear frame to exert pressure transmission frame connected control object for supporting to follow -up part, be equipped with the slide rail on the crossbeam, follow -up part moves after the slide rail is close to stop gear's tip position, contact stop gear. The utility model discloses a single division of sliding plug door system, the whole moving distance of follow -up part receives the pressure of torsional spring all the time, and pressure is adjustable, operates steadily, easily gets into the locking position, and the gyro wheel is difficult for breaking away from the locking position when receiving the impact vibrations, and follow -up part locking position is visual, and the locking state is visible, and the security is high.

Description

Singly open sliding plug door system

Technical field

This utility model relates to a field, specifically one and singly opens sliding plug door system.

Background technology

The existing screw drives singly opening sliding plug door system use, generally electric motor driven screw, drive the nut assembly being arranged on screw rod to move back and forth, and then drive the controlled device being connected with nut assembly.Typically, singly opening sliding plug door system more application in the mass transportation facilities door such as track traffic, big bus field, it the most also has locking and unlocking function.Be commonly used to above-mentioned field singly opens sliding plug door system, electromagnetic lock lock nut assembly, and then realizes the function locked a door.This form singly open sliding plug door system, electromagnetic lock must be energized the stability that guarantee is locked a door at any time, if after electromagnetic lock power-off, then can there is door and automatically open up risk, and prior art enters line-locked structure with mechanical lock opposite house, mostly there is baroque problem, as the system being mainly made up of frame for movement, structure complexity can bring poor reliability, from great, the problem such as wayward, especially when being applied to public transport field, can threaten the personal safety of passenger.

Utility model content

Utility model purpose: the one that this utility model provides singly opens sliding plug door system, to solve in prior art, the problem that the power-off back door existing for door system of application electromagnetic lock can automatically open up, and the structure existing for door system of application mechanical lock is complicated, from great, the problem such as wayward.

Technical scheme: for solving above-mentioned technical problem, one of the present utility model singly opens sliding plug door system, the load carrier including fixed mount, being movably arranged on fixed mount, the drive mechanism being located on load carrier and position-limit mechanism, drive mechanism branch sleeve assembly, connect door leaf by taking door frame；Described sleeve assembly is provided with guiding mechanism, and guiding mechanism draws track to match with the plug being arranged on fixed mount, and described load carrier includes that crossbeam, crossbeam are provided with guiding lock dog；Described drive mechanism includes by motor-driven screw mandrel and nut assembly；Described nut assembly includes gear frame, the nut being sheathed on screw mandrel, the follow-up unit that is fixed on nut；Nut is arranged in gear frame, and gear frame connects actively sleeve assembly；Screw mandrel drives nut assembly along screw mandrel axially reciprocating；During screw mandrel rotates forward, when follow-up unit touches guiding lock dog, moving downwardly to position-limit mechanism guiding leading of lock dog upper surface and stopped by this position-limit mechanism, follow-up unit is rotated into the space between side and the position-limit mechanism of guiding lock dog with screw mandrel and is locked；When screw mandrel rotates backward, follow-up unit rotates backward with screw mandrel and unlocks, then along screw mandrel axially-movable to the restriction departing from guiding lock dog.

Further, described gear frame has the mechanism limiting nut with screw mandrel rotational angle range.Thus limit the rotation that wide-angle occurs because of vibrations when follow-up unit moves with nut.

Further, described gear frame has the installation portion being connected with sleeve assembly, installation portion upwardly extends and forms the nut installation portion being made up of four root posts, nut is arranged in the space that four root posts are constituted, and the two root post tops towards crossbeam side are provided with the spacer pin limiting nut with screw mandrel rotational angle range wherein.

Further, the external diameter of described nut is more than the distance between two heel posts, and therefore nut is limited in the space between two heel posts, when nut is along screw mandrel axially-movable, by the column of not homonymy is applied thrust, drives gear frame to move with nut.

Further, described nut is made up of inner ring and outer ring, and inner ring coordinates with wire rod thread, and outer ring sleeve cooperates on inner ring and by anti-slop serrations, and outer ring is outward extended with the mounting seat of follow-up unit towards crossbeam side.

Further, described mounting seat has a screw, and follow-up unit has a screw rod, and screw rod is screwed in screw, makes follow-up unit and the fixing connection of nut.

Further, described follow-up unit is roller, uses roller and guides lock dog collocation, can reduce the running resistance of nut assembly to greatest extent, promote the use stationarity of system when by guiding lock dog surface.

Further, the both sides, outer ring of described nut lay respectively between the adjacent upright posts of correspondence, and screw mandrel drives gear frame to move axially along screw mandrel by nut outer ring.

Further, described nut assembly also comprises the elastomeric element to nut applying twisting resistance.

Further, described elastomeric element is torsion spring, and one end rides against on gear frame, and the other end rides against on nut.Torsion spring uses the internal diameter model more than screw mandrel diameter, is enclosed within outside screw mandrel.

Further, described nut top is outward extended with block, and one end rides against on this block.

Further, described guiding lock dog has the smooth upper surface that a guiding follow-up unit moves to position-limit mechanism.

Further, described guiding lock dog has one towards the side of position-limit mechanism, forms the space that can fall into follow-up unit between this side and position-limit mechanism.

Further, described side is to limit the inclined-plane that follow-up unit ejects.

Further, the angle between described side and vertical plane is 0-10 °, and in this angular range, guiding lock dog can apply active force to follow-up unit, and follow-up unit will not be caused again by locked problem because angle is excessive, and this angle is preferably 3 °.

Further, being additionally provided with the slide rail moved for follow-up unit, this slide rail connects with guiding lock dog and seamlessly transits with the upper surface guiding lock dog.

Further, described position-limit mechanism includes a limiting plate being arranged on crossbeam, and this limiting plate has the one side side to guiding lock dog, and this side and the side guiding lock dog are configured to fall into the space of follow-up unit.

Further, described limiting plate is rotatably installed on crossbeam by bearing pin, and this limiting plate has the riser of bending towards guiding lock dog side；Back-moving spring it is provided with between limiting plate and bearing pin.

Further, described limiting plate can trigger signaling switch in spinning movement.

Further, described limiting plate is provided with waist hole, and described crossbeam is provided with spacer pin, and spacer pin limits the limiting plate anglec of rotation in stretching into waist hole.

Further, described fixed mount is provided with guide and limit bar, and at closing time, drive mechanism is ordered about limiting plate and rotated, until the limited plate of guide and limit bar free end stops；During enabling, drive mechanism drives limiting plate to rotate backward, and releases the stop to guide and limit bar free end, and guide and limit bar passes through above limiting plate, limits limiting plate and rotates.

Further, described position-limit mechanism includes a man-operated mechanism, this man-operated mechanism includes a fixed support being arranged on crossbeam and a travel(l)ing rest being arranged on bearing pin, between two supports, back-moving spring is installed, travel(l)ing rest lower end is extended with the projection transferred to from the space guided between lock dog and position-limit mechanism by follow-up unit, and travel(l)ing rest manually stay cord drives and rotates around bearing pin.

Further, described travel(l)ing rest and limiting plate are arranged on same bearing pin.

Further, being provided with hanger at described crossbeam two ends, be provided with long guide pillar between hanger, sleeve assembly is located on long guide pillar, and can move back and forth on long guide pillar.

Further, described long guide pillar two ends pass hanger, and arrange rolling member in end, are provided with one group of mounting bracket on fixed mount, and rolling member matches with the slideway being located at inside mounting bracket.

Further, described fixed mount is provided with synchronizing bar, and synchronizing bar two ends are fixing connects transmission arm, and each transmission arm is flexibly connected with hanger by connecting rod.

Beneficial effect: one of the present utility model singly opens sliding plug door system, nut assembly and guiding lock dog, the combination of position-limit mechanism, solve existing electromagnetic lock list open sliding plug door system lost efficacy time door automatically open up, the problem bringing security risk, also than existing machinery lock construction singly to open sliding plug door system the most simple and reliable, and nut assembly is relative to the form matched with chute in prior art, structure is more succinct, run the most steady, few owing to constituting the number of components of its entirety, it is thus susceptible to processing and conducts oneself with dignity little, it is not necessary to excessive installing space.

Accompanying drawing explanation

Fig. 1 is this utility model overall structure schematic diagram；

Fig. 2 is the assembled state partial schematic diagram of fixed mount and crossbeam；

Fig. 3 is the partial schematic diagram that the left part of Fig. 2 hides mounting bracket；

Fig. 4 is the assembled state partial schematic diagram of crossbeam, mounting bracket, hanger, long guide pillar and synchronizing bar；

Fig. 5 is the position view under door closure state between guide and limit bar and limiting plate；

Fig. 6 is the position view under a state opened between guide and limit bar and limiting plate；

Fig. 7 is the first embodiment guiding lock dog；

Fig. 8 is the second embodiment guiding lock dog；

Fig. 9 is nut assembly structural representation；

Figure 10 is the combinative structure schematic diagram of nut assembly and gear frame；

Figure 11 is gear frame structural representation；

Figure 12 is nut structure schematic diagram；

Figure 13 is to guide lock dog and position-limit mechanism, the mated condition schematic diagram of follow-up unit；

Figure 14 is man-operated mechanism structural representation.

Detailed description of the invention

Below in conjunction with the accompanying drawings this utility model is further described.

One as shown in Fig. 1 to Figure 14 singly opens sliding plug door system, draw track 41, crossbeam 11 including fixed mount 40, the plug that is arranged on fixed mount 40 and be arranged on crossbeam 11 drive mechanism moved back and forth for driving gate, drive mechanism branch sleeve assembly 6, sleeve assembly 6 connects door 48 by taking door frame；It is additionally provided with on sleeve assembly 6 and fills in the roller drawing track 41 to match；It is respectively mounted hanger 49 at crossbeam two ends, between hanger 49 parallel equipped with long guide pillar 50, sleeve assembly 6 is sleeved on long guide pillar 50, and can move back and forth on long guide pillar 50, long guide pillar 50 two ends pass hanger 49, and install rolling member in end, and rolling member is device or the parts that bearing etc. has rolling function, arranging one group of mounting bracket 43 on fixed mount 40, rolling member matches with the slideway being arranged on inside mounting bracket 43.Can also arrange between mounting bracket 43 one can the synchronizing bar 47 of axial rotation, synchronizing bar 47 two ends are fixing connects transmission arm 64, and each transmission arm 64 is flexibly connected with hanger 49 by connecting rod.

As shown in Fig. 7 to Figure 14, drive mechanism includes the motor 1 being fixed on crossbeam 11, guides lock dog 51 and position-limit mechanism 4, and motor 1 is connected with controller；The axle connection wire rod 2 of motor 1, complete on screw mandrel 2 is configured with nut assembly 3；Nut assembly 3 includes nut 31 and follow-up unit rigidly connected with nut 31 7, and it is secondary that nut 31 and screw mandrel 2 constitute screw, is provided with gear frame 9, can be movable relatively between gear frame 9 and nut 31 outside nut 31；Torsion spring 10 it is provided with between gear frame 9 and nut 31, torsion spring 10 applies pressure for support to follow-up unit 7 with gear frame 9, gear frame 9 branch sleeve assembly 6, during screw mandrel 2 rotates forward, drive nut 31 to move with follow-up unit 7 simultaneously, when moving to follow-up unit 7 and guiding after lock dog 51 contacts, follow-up unit 7 moves downwardly to position-limit mechanism 4 leading of lock dog 51 upper surface of guiding and is stopped by this position-limit mechanism 4, and follow-up unit 7 is rotated into the space between side and the position-limit mechanism 4 of guiding lock dog 51 with screw mandrel 2 and is locked；When screw mandrel 2 rotates backward, follow-up unit 7 rotates backward with screw mandrel 2 and unlocks, then along screw mandrel 2 axially-movable to the restriction departing from guiding lock dog 51.Guide lock dog 51 and have one towards the side of position-limit mechanism 4, between this side and position-limit mechanism 4, form the space that can fall into follow-up unit 7.Side is to limit the inclined-plane that follow-up unit 7 ejects, angle between side and vertical plane is 0-10 °, and in this angular range, guiding lock dog 51 can apply active force to follow-up unit 7, follow-up unit 7 will not be caused again by locked problem because angle is excessive, this angle is preferably 3 °.And in gear frame 9, also have the mechanism limiting nut 31 with screw mandrel 2 rotational angle range, this mechanism is a space, follow-up unit 7 on nut 31 moves up and down with nut 31 within this space, the top and bottom in this space define the slewing area of follow-up unit 7, and then define slewing area when nut 31 moves with screw mandrel 2.

As shown in Figure 7, as the first embodiment, guide lock dog 51 and there is the smooth upper surface that a guiding follow-up unit 7 moves to position-limit mechanism 4, in follow-up unit 7 motor process, when it is not with guiding lock dog 51 upper surface, it is in free state, i.e. it is positioned at the lower end in the space that above-mentioned restriction follow-up unit 7 rotates, the torsion spring 10 being arranged between nut 31 and gear frame 9 may be configured as being in the compressive state of relaxation state or less, twisting resistance is not applied to nut 31, or apply less twisting resistance to nut 31, can make nut 31 in driving follow-up unit 7 to run, more steady.When follow-up unit 7 is by guiding lock dog 51 upper surface, torsion spring 10 is compressed, torsion is applied to nut 31, thus, ensure that follow-up unit 7 can be after touching limiting plate 13, rotated the twisting resistance driving nut 31 and torsion spring 10 to apply by screw mandrel 2, limiting plate 13 and the space guided between lock dog 51 can be smoothly entered.

As shown in Figure 8, as the second embodiment, the slide rail 5 moved for follow-up unit 7 also it is installed with on crossbeam 11, this slide rail 5 connects with guiding lock dog 51 and seamlessly transits with the upper surface guiding lock dog 51, it is specially, guide lock dog 51 and be arranged on slide rail 5 one end near limiting component, and there is the upper surface of level, connect with the upper surface of slide rail 5 and become an integral level surface.After slide rail 5 is set, follow-up unit 7 i.e. with slide rail 5 upper surface can moving back and forth on this upper surface, under this setup, follow-up unit 7 is between the top and bottom in the space that above-mentioned restriction follow-up unit 7 rotates, not with upper end or lower end in contact, now the torsion spring 10 between nut 31 and gear frame 9 is in compressive state, after follow-up unit 7 moves to contact with limiting plate 13, the twisting resistance that nut 31 is applied by the power of screw mandrel 2 rotation drive nut 31 rotation and torsion spring 10, ensure that follow-up unit 7 can enter limiting plate 13 and the space guided between lock dog 51 smoothly.Slide rail 5 is set, makes follow-up unit 7 move under the restriction of slide rail 5, it is possible to increase the stationarity of nut assembly 3 motion further.

As shown in Fig. 9 to Figure 12, gear frame 9 has the installation portion 91 being connected with sleeve assembly 6, installation portion 91 upwardly extends and forms the nut installation portion being made up of four root posts 92, nut 31 is arranged in the space that four root posts 92 are constituted, two root post 92 tops towards crossbeam 11 side are provided with the spacer pin 12 limiting nut 31 with screw mandrel 2 rotational angle range wherein, therefore, rotation space when nut 31 rotates is defined with screw mandrel 2 between bottom and the spacer pin 12 of two root posts 92 of spacer pin 12 and crossbeam 11 side, spacer pin 12 is above-mentioned upper end, between two root posts 92, the bottom in space is then lower end.The external diameter of nut 31 is more than the distance between two heel posts 92, therefore nut 31 is limited in the space between two heel posts 92, when nut 31 is along screw mandrel 2 axially-movable, by the column 92 of not homonymy is applied thrust, gear frame 9 is driven to move with nut 31, nut 31 is made up of inner ring and outer ring, inner ring and screw mandrel 2 threaded engagement, outer ring sleeve cooperates on inner ring and by anti-slop serrations, outer ring is outward extended with the mounting seat of follow-up unit 7 towards crossbeam 11 side, mounting seat has a screw, follow-up unit 7 has a screw rod, screw rod is screwed in screw, make follow-up unit 7 and the fixing connection of nut 31.Follow-up unit 7 can use roller, it is possible to is the parts that other types smooth surface running resistance is little, such as ganoid sliding shoe etc..Use roller to arrange in pairs or groups with guiding lock dog 51, the running resistance of nut assembly 3 can be reduced when by guiding lock dog 51 surface to greatest extent, promote the use stationarity of system.The both sides, outer ring of nut 31 lay respectively between the adjacent upright posts 92 of correspondence, and screw mandrel 2 drives gear frame 9 to move axially along screw mandrel 2 by nut 31 outer ring.Nut assembly 3 also comprises and applies twisting resistance torsion spring 10 to nut 31, one end rides against on gear frame 9, the other end rides against on nut 31, torsion spring uses the internal diameter model more than screw mandrel 2 diameter, it is enclosed within screw mandrel 2 outside, nut 31 outer ring is outward extended with block 32, and one end rides against on this block 32.

nullAs shown in figure 13，Position-limit mechanism 4 includes a limiting plate being arranged on crossbeam 11 13，This limiting plate 13 has towards the side guiding lock dog 51，This side and the side guiding lock dog 51 are configured to fall into the space of follow-up unit 7，Limiting plate 13 is rotatably installed on crossbeam 11 by bearing pin 14，This limiting plate 13 has the riser 26 of bending towards guiding lock dog 51 side，The angle of this riser 26 manufactures when applying according to reality，It is specially，When follow-up unit 7 does not contacts with riser 26，The upper semisection of this bending riser 26 is vertical，Lower semisection is to the direction bending guiding lock dog 51，And after follow-up unit 7 contacts with riser 26，Limiting plate 13 is driven to rotate，After rotating stopping，Lower semisection becomes vertical direction，Upper semisection is to the direction bending guiding lock dog 51，The bending degree of riser 26，Rotational angle according to limiting plate 13 and set，If the rotational angle of limiting plate 13 is α，So between upper semisection and the lower semisection of riser 26, the angle at folded obtuse angle is 180 ° of-α；It is additionally provided with back-moving spring between limiting plate 13 and bearing pin 14, back-moving spring can be torsion spring, torsion spring set is on bearing pin 14, its one end is fixed on limiting plate 13, the other end is fixed on crossbeam 11, and limiting plate 13 can switch 15 by its edge triggered signal in spinning movement, and limiting plate 13 has waist hole 27, being provided with spacer pin 19 on crossbeam 11, spacer pin 19 limits limiting plate 13 anglec of rotation in stretching into waist hole 27.

As shown in Figure 5, Figure 6, fixed mount 40 being additionally provided with guide and limit bar 42, its one end is fixing with fixed mount 40 to be connected, and the other end is free end；Limiting plate 13 is rotatably installed on crossbeam 11, and when door 48 is closed under drive mechanism drives, limiting plate 13 rotates until stopping the free end of guide and limit bar 42, limits door return；When door 48 is opened under drive mechanism drives, limiting plate 13 inverts and releases the stop to guide and limit bar 42 free end, makes door back move, after limiting plate 13 inverts and releases the stop to guide and limit bar 42 free end, guide and limit bar 42 approaches limiting plate 13 edge, limits limiting plate 13 and rotates.

nullSuch as Figure 13、Shown in Figure 14，Position-limit mechanism 4 also includes a man-operated mechanism，This man-operated mechanism includes a fixed support being arranged on crossbeam 11 20 and a travel(l)ing rest being arranged on bearing pin 14 17，Between two supports, back-moving spring is installed，Back-moving spring can be torsion spring，Torsion spring set is at bearing pin 14，Its one end is fixed on fixed support 20，The other end is fixing with travel(l)ing rest 17 to be connected，Follow-up unit 7 can be transferred in rotary course from the space guided between lock dog 51 and position-limit mechanism 4 by travel(l)ing rest 17，It is specially，The slide block 21 of one bending can be set in travel(l)ing rest 17 bottom，It is transferred to below follow-up unit 7 from the space guided between lock dog 51 and position-limit mechanism 4 by slide block 21，Travel(l)ing rest 17 manually can drive and rotates around bearing pin 14 by stay cord 8，Manual stay cord 8 is connected with solving lock-switch，Solving lock-switch can be a manual knob，Manual stay cord 8 can be pulled during rotation.In actual applications, it actual is arranged on the position that such as subway inwall etc. can make people readily access.When turn solution lock-switch drives travel(l)ing rest 17 to rotate with bearing pin 14 for center of rotation, slide block 21 promotes follow-up unit 7 to move upward.Travel(l)ing rest 17 and limiting plate 13 are arranged on same bearing pin 14, and the two will not interfere with each other, and integrated level is high, it is possible to save installing space.

One of the present utility model singly opens sliding plug door system, can be divided into following motor process and state:

1, electronic lock a door: controller sends signal to motor 1, motor 1 is made to drive screw mandrel 2 to rotate, screw mandrel 2 drives follow-up unit 7 axially to move to position-limit mechanism 4 along screw mandrel 2 by nut assembly 3, when follow-up unit 7 touches guiding lock dog 51, move downwardly to limiting plate 13 guiding leading of lock dog 51 upper surface and stopped by this limiting plate 13, follow-up unit 7 is rotated into the space between side and the limiting plate 13 of guiding lock dog 51 with screw mandrel 2 and is locked, in the process, limiting plate 13 rotates, trigger the signaling switch 15 being arranged on below, after signaling switch 15 sends, to controller, the signal that puts in place, controller controls motor 1 stall, complete to lock a door.Now, it is anterior that limiting plate 13 is blocked in guide and limit bar 42 free end, owing to door is the most locked, thus without being opened easily.And without guide and limit bar 42, after the torsion spring on limiting plate 13 lost efficacy, follow-up unit 7 is after producing between guiding lock dog 51 and limiting plate 13, limiting plate 13 can not autonomous return, thus can not trigger signaling switch 15, and cause enabling signal mistake, now owing to being provided with guide and limit bar 42, the plug that door is opened pulls and is blocked, and is unable to open, it is to avoid occur unexpected.

2, electric open-door: controller sends signal to motor 1, motor 1 is made to drive screw mandrel 2 to rotate backward, follow-up unit 7 rotates backward with screw mandrel 2 and unlocks to the restriction departing from guiding lock dog 51, and depart from limiting plate 13, limiting plate 13 is return under the effect of torsion spring, releasing the stop to guide and limit bar 42, trigger signaling switch 15 and send unlocking signal to controller, then limiting component is along screw mandrel 2 axially-movable.When follow-up unit 7 moves to screw mandrel 2 other end, motor 1 stall, complete to open the door, now guide and limit bar 42 is in the top of limiting plate 13 and can limit limiting plate 13 reversed turning, it is to avoid false touch signaling switch.

3, manually locking a door: manual actuation sleeve assembly 6, make nut assembly 3 axially move to position-limit mechanism 4 at screw mandrel 2, now screw mandrel 2 is passive rotation.When follow-up unit 7 touches guiding lock dog 51, move downwardly to limiting plate 13 guiding leading of lock dog 51 upper surface and stopped by this limiting plate 13, follow-up unit 7 is rotated into the space between side and the limiting plate 13 of guiding lock dog 51 with screw mandrel 2 and is locked, in the process, limiting plate 13 rotates, trigger the signaling switch 15 being arranged on below, after signaling switch 15 sends, to controller, the signal that puts in place, complete to lock a door.

4, open Door by Hand: during locked door condition, lock-switch is solved by rotating, manual stay cord 8 is made to pull travel(l)ing rest 17 to do rotationally clockwise around bearing pin 14, the slide block 21 of travel(l)ing rest 17 is stirred from bottom by follow-up unit 7, follow-up unit 7 is made to leave latched position, torsion spring drives limiting plate 13 to rotate clockwise around bearing pin 14 simultaneously, and trigger signaling switch 15, after unclamping solution lock-switch, travel(l)ing rest 17 rotates to original position under the driving of back-moving spring, then manual actuation sleeve assembly 6, nut assembly 3 is made axially to move to the direction away from position-limit mechanism 4 at screw mandrel 2, realization opens Door by Hand.

The above is only preferred implementation of the present utility model; it is noted that, for those skilled in the art; on the premise of without departing from this utility model principle, it is also possible to make some improvements and modifications, these improvements and modifications also should be regarded as protection domain of the present utility model.

Claims (26)

1. singly open a sliding plug door system, including fixed mount (40), the plug be located on fixed mount (40) draw track (41), Crossbeam (11) and be located at the upper drive mechanism moved back and forth for driving gate of crossbeam (11), it is characterised in that: also wrap Including the guiding lock dog (51) and position-limit mechanism (4) being arranged on crossbeam (11), described drive mechanism includes by motor (1) The screw mandrel (2) driven and nut assembly (3)；Described nut assembly (3) includes gear frame (9), is sheathed on screw mandrel (2) On nut (31), the follow-up unit (7) that is fixed on nut (31)；Nut (31) is arranged on gear frame (9) In, gear frame (9) branch sleeve assembly (6)；Screw mandrel (2) drives nut assembly (3) the most past along screw mandrel (2) Multiple motion；During screw mandrel (2) rotates forward, when follow-up unit (7) touches guiding lock dog (51), leading Move downwardly to position-limit mechanism (4) to leading of lock dog (51) upper surface and stopped by this position-limit mechanism (4), servo-actuated portion Part (7) with screw mandrel (2) be rotated into guide lock dog (51) side and position-limit mechanism (4) between space and quilt Locking；When screw mandrel (2) rotates backward, follow-up unit (7) rotates backward to departing from guiding lock dog (51) with screw mandrel (2) Restriction and unlock, then along screw mandrel (2) axially-movable.

The most according to claim 1 singly open sliding plug door system, it is characterised in that: limited in described gear frame (9) Determine the nut (31) mechanism with screw mandrel (2) rotational angle range.

The most according to claim 2 singly open sliding plug door system, it is characterised in that: described gear frame (9) have with The installation portion (91) that sleeve assembly (6) connects, installation portion (91) upwardly extends formation and is made up of four root posts (92) Nut installation portion, nut (31) is arranged in the space that four root posts (92) are constituted, wherein towards crossbeam (11) Two root posts (92) top of side is provided with the spacer pin limiting nut (31) with screw mandrel (2) rotational angle range (12)。

The most according to claim 3 singly open sliding plug door system, it is characterised in that: the external diameter of described nut (31) More than the distance between two heel posts (92).

The most according to claim 3 singly open sliding plug door system, it is characterised in that: described nut (31) is by inner ring Constituting with outer ring, inner ring and screw mandrel (2) threaded engagement, outer ring sleeve cooperates, outward on inner ring and by anti-slop serrations Circle is outward extended with the mounting seat of follow-up unit (7) towards crossbeam (11) side.

The most according to claim 5 singly open sliding plug door system, it is characterised in that: described mounting seat has a screw, Follow-up unit (7) has a screw rod, and screw rod is screwed in screw, makes follow-up unit (7) and the fixing connection of nut (31).

7. according to singly opening sliding plug door system described in any one of claim 1-6, it is characterised in that: described follow-up unit (7) it is roller.

The most according to claim 5 singly open sliding plug door system, it is characterised in that: the outer ring of described nut (31) Both sides lay respectively between the adjacent upright posts (92) of correspondence, and screw mandrel (2) drives gear frame by nut (31) outer ring (9) move axially along screw mandrel (2).

9. according to singly opening sliding plug door system described in claim 1 or 3, it is characterised in that: described nut assembly (3) In also comprise to nut (31) apply twisting resistance elastomeric element (10).

The most according to claim 9 singly open sliding plug door system, it is characterised in that: described elastomeric element (10) is Torsion spring, one end rides against on gear frame (9), and the other end rides against on nut (31).

11. according to claim 10 singly open sliding plug door system, it is characterised in that: described nut (31) top Being outward extended with block (32), one end rides against on this block (32).

12. according to claim 1 singly open sliding plug door system, it is characterised in that: described guiding lock dog (51) has There is the guiding follow-up unit (7) the smooth upper surface to position-limit mechanism (4) movement.

13. according to singly opening sliding plug door system described in claim 1 or 12, it is characterised in that: described guiding lock dog (51) Have one towards the side of position-limit mechanism (4), formed between this side and position-limit mechanism (4) and follow-up unit can be fallen into (7) space.

14. according to claim 13 singly open sliding plug door system, it is characterised in that: described side is for limiting The inclined-plane that follow-up unit (7) ejects.

15. according to claim 14 singly open sliding plug door system, it is characterised in that: described side and vertical plane it Between angle be 0-10 °.

16. according to singly opening sliding plug door system described in claim 1 or 12, it is characterised in that: it is additionally provided with for servo-actuated The slide rail (5) of parts (7) movement, this slide rail (5) with guide lock dog (51) connect and with guide lock dog (51) Upper surface seamlessly transits.

17. according to claim 1 singly open sliding plug door system, it is characterised in that: described position-limit mechanism (4) wraps Including a limiting plate (13) being arranged on crossbeam (11), this limiting plate (13) has one side to guiding lock dog (51) Side, this side with guide lock dog (51) side be configured to fall into the space of follow-up unit (7).

18. according to claim 17 singly open sliding plug door system, it is characterised in that: described limiting plate (13) leads to Crossing bearing pin to be rotatably installed on crossbeam (11), this limiting plate (13) has curved towards guiding lock dog (51) side The riser (26) of folding；It is provided with back-moving spring between limiting plate (13) and bearing pin.

19. according to claim 18 singly open sliding plug door system, it is characterised in that: described limiting plate (13) exists Spinning movement can trigger signaling switch (15).

20. according to claim 18 singly open sliding plug door system, it is characterised in that: on described limiting plate (13) Being provided with waist hole (27), described crossbeam (11) is provided with spacer pin (19), spacer pin (19) stretches into waist hole (27) Interior restriction limiting plate (13) anglec of rotation.

21. according to singly opening sliding plug door system described in any one of claim 17-20, it is characterised in that: described fixed mount (40) being provided with guide and limit bar (42), at closing time, drive mechanism is ordered about limiting plate (13) and is rotated, until guiding The limited plate of gag lever post (42) free end (13) stops；During enabling, drive mechanism drives limiting plate (13) reversely to turn Dynamic, release the stop to guide and limit bar (42) free end, guide and limit bar (42) is square tube from limiting plate (13) Cross, limit limiting plate (13) and rotate.

22. according to singly opening sliding plug door system described in claim 1,18 or 19, it is characterised in that: described position restrainer Structure (4) includes a man-operated mechanism, and this man-operated mechanism includes a fixed support (20) being arranged on crossbeam (11) With a travel(l)ing rest being arranged on bearing pin (17), back-moving spring, travel(l)ing rest (17) are installed between two supports Manually stay cord (8) drives and rotates around bearing pin, can be by follow-up unit (7) from guiding lock dog (51) in rotation process And the space between limiting plate (13) is transferred to.

23. according to claim 22 singly open sliding plug door system, it is characterised in that: described travel(l)ing rest is with spacing Plate (13) is arranged on same bearing pin (14).

24. according to claim 1 singly open sliding plug door system, it is characterised in that: described drive mechanism branch sleeve Assembly (6), sleeve assembly (6) connects door (48) by taking door frame；Described sleeve assembly (6) is provided with and draws with plug The roller that track (41) matches；Hanger (44) it is provided with at described crossbeam (11) two ends, flat between hanger (44) Row is provided with long guide pillar (45), and sleeve assembly (6) can be in the upper reciprocating motion of long guide pillar (45).

25. according to claim 24 singly open sliding plug door system, it is characterised in that: described long guide pillar (45) two End is through hanger (44), and arranges rolling member in end, is provided with one group of mounting bracket (43) on fixed mount (40), Rolling member matches with the slideway being located at mounting bracket (43) inner side.

26. according to claim 24 singly open sliding plug door system, it is characterised in that: described mounting bracket (43) Between be provided with synchronizing bar (47), synchronizing bar (47) two ends are fixing connects transmission arm (46), and each transmission arm (46) leads to Cross connecting rod to be flexibly connected with hanger (44).