CN220849322U

CN220849322U - Recovery structure in subway carriage escape device

Info

Publication number: CN220849322U
Application number: CN202322687675.5U
Authority: CN
Inventors: 何秀平; 钟善祥
Original assignee: Ningbo Chenghe Electromechanical Co ltd
Current assignee: Ningbo Chenghe Electromechanical Co ltd
Priority date: 2023-10-08
Filing date: 2023-10-08
Publication date: 2024-04-26
Anticipated expiration: 2033-10-08

Abstract

The utility model relates to the technical field of subways and discloses a recovery structure in an escape device of a subway carriage, which has the technical scheme that the recovery structure comprises a shell, a power assembly and two output assemblies, wherein two switching parts corresponding to the output assemblies are arranged in the shell, and the meshing states between an inner gear and an outer gear are switched through the switching parts, so that the sequential rotation of two ladder shafts is controlled through one power assembly, the number of motors arranged in the power assembly is saved, the cost is saved, and compared with an electromagnetic clutch, the switching parts can omit the electromagnetic interference of the electromagnetic clutch on other parts in the subway carriage, so that the unmanned subway is safer.

Description

Recovery structure in subway carriage escape device

Technical Field

The utility model relates to the technical field of subways, in particular to a recycling structure in an escape device of a subway carriage.

Background

Along with the development of science and technology, the subway realizes the application of unmanned technology, the vehicle realizes full-automatic operation under the unified control of a control center, and the functions of dormancy, awakening, preparation, self-checking, automatic operation, parking and door opening and closing of a train, automatic recovery under the fault condition and the like are automatically realized;

The unmanned subway carriage is provided with escape devices at the head part and the tail part of the carriage, the escape devices comprise escape doors and escape ladders, and passengers can be evacuated through the escape doors and the escape ladders when accidents occur;

The structure for controlling the opening or closing of the escape ladder and the escape door comprises a belt wheel mechanism and a power mechanism for driving and controlling the movement of the belt wheel mechanism, wherein two existing power mechanisms are arranged, and the escape ladder and the escape door are respectively controlled, so that the space waste and the cost increase are caused.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model aims to provide a recovery structure in an escape device of a subway carriage, which is used for realizing the closing or opening of an escape door and an escape ladder by a single power mechanism.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a recovery structure in subway carriage escape device, includes casing, power pack and two output components, be provided with in the casing two with the switching part that the output component corresponds, power pack includes power pack and two relative internal gears that set up, power pack is used for driving the internal gear rotates, the output pack includes terraced axle and external gear, terraced axle with the internal gear rotates to be connected, external gear sliding connection in on the terraced axle, external gear with be provided with spacing portion between the terraced axle, in order to restrict the external gear with relative rotation between the terraced axle, switching part is used for promoting corresponding external gear edge the central axis of terraced axle removes, so that the external gear breaks away from or meshes the internal gear.

As a further improvement of the utility model, the power part comprises a motor and a transmission shaft, wherein the output end of the motor is fixedly connected with a first bevel gear, the transmission shaft is fixedly connected with a second bevel gear, the first bevel gear is meshed with the second bevel gear, and the two ends of the transmission shaft are respectively and fixedly connected with the corresponding internal gears.

As a further improvement of the utility model, the limiting part comprises a sliding groove and a convex strip, wherein a plurality of sliding grooves are formed on the ladder shaft and are uniformly distributed along the circumferential direction of the central axis of the ladder shaft, and a plurality of convex strips are formed on the inner side of the external gear and are embedded into the corresponding sliding grooves.

As a further improvement of the utility model, the switching part comprises an electric cylinder and a linear seat, wherein the output end of the electric cylinder is connected with the linear seat, the output end of the electric cylinder is fixedly connected with a deflector rod, and the deflector rod is connected with the external gear.

As a further improvement of the utility model, a bracket is detachably connected in the shell, and the electric cylinder is fixedly connected to the bracket.

As a further improvement of the utility model, a ring groove is formed on the external gear, and one end of the deflector rod, which is away from the electric cylinder, extends into the ring groove.

As a further improvement of the utility model, the deflector rod comprises a sleeve and a connecting piece, wherein the sleeve and the connecting piece are integrally formed, and a transverse piece is connected between the sleeve and the connecting piece.

As a further improvement of the utility model, an arc-shaped section is formed on the inner side of the connecting piece, the width of the arc-shaped section is smaller than that of the connecting piece, and the arc-shaped section extends into the annular groove.

As a further improvement of the utility model, the end part of one ladder shaft is movably connected with a long shaft, a plurality of first bearings are connected between the long shaft and the shell, and a plurality of first belt wheels are fixedly connected on the long shaft.

As a further improvement of the utility model, a second bearing is connected between the ladder shaft and the housing, and a second belt wheel is fixedly connected to the other ladder shaft.

The utility model has the beneficial effects that: according to the utility model, the meshing states between the inner gear and the outer gear are switched through the switching part, so that the sequential rotation of the two ladder shafts is controlled through one power assembly, the number of motors in the power assembly is saved, the cost is saved, and compared with an electromagnetic clutch, the electromagnetic clutch has the advantage that the electromagnetic clutch can be omitted from electromagnetic interference to other parts in a subway carriage, so that the unmanned subway is safer.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic view of the internal structure of the present utility model;

FIG. 3 is a schematic diagram of the structure at the switching section in the present utility model;

FIG. 4 is a schematic view of a lever structure of the present utility model;

FIG. 5 is a schematic view of the structure of the outer gear of the present utility model;

FIG. 6 is a schematic view of the structure of the ladder shaft of the present utility model;

Fig. 7 is a cross-sectional view of the present utility model.

Reference numerals: 1. a housing; 11. a bracket; 12. a first bearing; 13. a second bearing; 2. an output assembly; 21. a ladder shaft; 22. an external gear; 221. a ring groove; 23. a long axis; 24. a first pulley; 25. a second pulley; 3. a switching section; 31. an electric cylinder; 32. a straight line seat; 33. a deflector rod; 331. a sleeve; 332. a connecting piece; 333. a cross member; 334. an arc section; 4. a power section; 41. a motor; 42. a transmission shaft; 43. a first bevel gear; 44. a second bevel gear; 5. an internal gear; 61. a chute; 62. a convex strip.

Detailed Description

The utility model will now be described in further detail with reference to the drawings and examples. Wherein like parts are designated by like reference numerals. It should be noted that the words "front", "back", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "bottom" and "top", "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.

Referring to fig. 1 to 7, a recovery structure in an escape device for a subway car according to the present embodiment includes a housing 1, a power assembly and two output assemblies 2, wherein two switching portions 3 corresponding to the output assemblies 2 are disposed in the housing 1, the power assembly includes a power portion 4 and two relatively disposed internal gears 5, the power portion 4 is used for driving the internal gears 5 to rotate, the output assemblies 2 include a ladder shaft 21 and an external gear 22, wherein the ladder shaft 21 extends out of the housing 1, the ladder shaft 21 can be rotationally connected with the housing 1, one of the ladder shafts 21 is connected with a pulley mechanism between escape doors, and the escape doors are opened or closed by transmission of the pulley mechanism;

the other ladder shaft 21 is connected with a belt wheel mechanism between the escape ladder and realizes the folding and unfolding of the escape ladder through the transmission of the belt wheel mechanism.

Compared with an electromagnetic clutch, the switching part 3 can omit electromagnetic interference of the electromagnetic clutch on other parts in a subway carriage, so that the unmanned subway is safer.

Referring to fig. 3, 5 and 6, the stepped shaft 21 is rotatably connected with the inner gear 5, the outer gear 22 is slidably connected to the stepped shaft 21, a limiting part is provided between the outer gear 22 and the stepped shaft 21 to limit the relative rotation between the outer gear 22 and the stepped shaft 21, the switching part 3 is used for pushing the corresponding outer gear 22 to move along the central axis of the stepped shaft 21 so as to disengage or mesh the inner gear 5, the meshing state between the inner gear 5 and the outer gear 22 is switched through the switching part 3, so that the sequential rotation of the two stepped shafts 21 is controlled through one power assembly, the number of the motors 41 in the power assembly is saved, and the cost is saved.

Referring to fig. 7, the power part 4 includes a motor 41 and a driving shaft 42, an output end of the motor 41 is fixedly connected with a first bevel gear 43, a second bevel gear 44 is fixedly connected to the driving shaft 42, the first bevel gear 43 is meshed with the second bevel gear 44, two ends of the driving shaft 42 are respectively fixedly connected with corresponding internal gears 5, when the motor 41 drives the external gear 22 to rotate, the motor 41 is started, the motor 41 drives the first bevel gear 43 to rotate through an output shaft thereon, and the first bevel gear 43 drives the second bevel gear 44 to rotate through meshing with the second bevel gear 44, so that the driving shaft 42 drives the two internal gears 5 to rotate;

Wherein, the two internal gears 5 are rotated simultaneously, when the two internal gears 5 are rotated, there is one external gear 22 meshed with the corresponding internal gear 5, so that the stepped shaft 21 thereon is rotated, and the other external gear 22 is disengaged from the corresponding internal gear 5;

If the rotating shaft 21 corresponds to an escape door, the escape door is opened or closed, wherein the opening or closing of the escape door is determined by the forward and reverse rotation of the motor 41.

Referring to fig. 5 and 6, the stopper includes a slide groove 61 and a protrusion 62, the slide groove 61 is opened on the shaft 21 and uniformly distributed along the central axis of the shaft 21, the protrusion 62 is formed inside the external gear 22 and is embedded in the corresponding slide groove 61, and the relative rotation between the shaft 21 and the external gear 22 thereon is limited by the arrangement of the slide groove 61 and the protrusion 62, so that the external gear 22 can only slide along the central axis of the shaft 21;

in the case of the rotation of the external gear 22, the stepped shaft 21 may be driven to rotate.

Referring to fig. 2 and 3, the switching part 3 includes an electric cylinder 31 and a linear seat 32, wherein an output end of the electric cylinder 31 is connected with the linear seat 32, the linear seat 32 increases stability in a moving process of the output end of the electric cylinder 31, an output end of the electric cylinder 31 is fixedly connected with a deflector rod 33, the deflector rod 33 is connected with an external gear 22, when the output end of the electric cylinder 31 moves, the deflector rod 33 drives the deflector rod 33 to move, and the deflector rod 33 is connected with the external gear 22, so that the deflector rod 33 drives the external gear 22 to move, when the external gear 22 moves towards one side close to the internal gear 5, the external gear 22 is meshed with the internal gear 5, and when the motor 41 is started, the motor 41 drives the internal gear 5 to rotate;

For the two external gears 22, the respective switching parts 3 respectively control one external gear 22, and the two external gears 22 cannot rotate simultaneously, when one external gear 22 is meshed with the corresponding internal gear 5, the other external gear 22 is disengaged from the corresponding internal gear 5, so that the staggered opening or closing of the escape door and the escape ladder on the subway car is realized, wherein the escape door is firstly opened and then the escape ladder is opened when the escape door is opened;

When closing, the escape ladder is closed firstly, and then the escape door is closed.

Referring to fig. 2, a bracket 11 is detachably connected in a housing 1, an electric cylinder 31 is fixedly connected to the bracket 11, and the stability of the installation of the electric cylinder 31 is increased by the arrangement of the bracket 11;

Wherein, support 11 includes bottom plate, riser and curb plate, bottom plate and riser integrated into one piece, and the curb plate is connected between riser and bottom plate, and the setting of curb plate has increased the stability of riser, prevents that the riser from rocking.

Referring to fig. 4 and 5, a ring groove 221 is formed on the external gear 22, and one end of the deflector rod 33, which is away from the electric cylinder 31, extends into the ring groove 221, so that hard connection between the deflector rod 33 and the external gear 22 is avoided, but the deflector rod 33 can drive the external gear 22 to move, and the external gear 22 is not interfered when the external gear 22 rotates, so that the connection structure is simple;

The shift lever 33 may be connected to the external gear 22 through a ball bearing.

The deflector rod 33 comprises a sleeve 331 and a connecting piece 332, the sleeve 331 and the connecting piece 332 are integrally formed, a transverse piece 333 is connected between the sleeve 331 and the connecting piece 332, wherein the transverse piece 333 increases the connection strength between the connecting piece 332 and the sleeve 331, and the breakage of the connecting piece 332 can be prevented.

The inner side of the connecting piece 332 is formed with an arc-shaped section 334, the width of the arc-shaped section 334 is smaller than that of the connecting piece 332, the arc-shaped section 334 stretches into the ring groove 221, and the width of the connecting piece 332 is larger than that of the arc-shaped section 334, so that the strength of the connecting piece 332 is higher, and the connecting piece is prevented from being broken;

And the arrangement of the width of the ring groove 221 can be reduced, accordingly, the whole width of the external gear 22 is reduced, and the space is saved.

Referring to fig. 1 and 2, a long shaft 23 is movably connected to an end portion of one of the ladder shafts 21, a plurality of first bearings 12 are connected between the long shaft 23 and the housing 1, the first bearings 12 increase stability in a rotation process of the long shaft 23, in this embodiment, two first bearings 12 are provided, a plurality of first pulleys 24 are fixedly connected to the long shaft 23, and the first pulleys 24 are provided with two pulleys for connection with pulley mechanisms between escape ladders or escape doors.

A second bearing 13 is connected between the ladder shaft 21 and the housing 1, the second bearing 13 increases the stability of the rotation of the ladder shaft 21, and a second belt wheel 25 is fixedly connected to the other ladder shaft 21, and the second belt wheel 25 is used for being connected with a belt wheel mechanism between the escape ladder and the escape door.

The above is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims

1. The utility model provides a recovery structure in subway carriage escape device which characterized in that: including casing (1), power pack and two output module (2), be provided with in casing (1) two with switch portion (3) that output module (2) correspond, power pack includes power pack (4) and two relative internal gear (5) that set up, power pack (4) are used for driving internal gear (5) rotate, output module (2) include ladder shaft (21) and external gear (22), ladder shaft (21) with internal gear (5) rotate to be connected, external gear (22) sliding connection in on ladder shaft (21), external gear (22) with be provided with spacing portion between ladder shaft (21) in order to restrict external gear (22) with relative rotation between ladder shaft (21), switch portion (3) are used for promoting corresponding external gear (22) along the central axis of ladder shaft (21) removes, so that external gear (22) break away from or mesh internal gear (5).

2. The recovery structure in an escape apparatus for a subway car according to claim 1, wherein: the power part (4) comprises a motor (41) and a transmission shaft (42), wherein the output end of the motor (41) is fixedly connected with a first bevel gear (43), the transmission shaft (42) is fixedly connected with a second bevel gear (44), the first bevel gear (43) is meshed with the second bevel gear (44), and two ends of the transmission shaft (42) are respectively fixedly connected with the corresponding inner gear (5).

3. The recovery structure in an escape apparatus for a subway car according to claim 1, wherein: the limiting part comprises sliding grooves (61) and raised strips (62), a plurality of sliding grooves (61) are formed in the ladder shaft (21) and are uniformly distributed along the circumferential direction of the central axis of the ladder shaft (21), and a plurality of raised strips (62) are formed on the inner side of the outer gear (22) and are embedded into the corresponding sliding grooves (61).

4. The recovery structure in an escape apparatus for a subway car according to claim 1, wherein: the switching part (3) comprises an electric cylinder (31) and a linear seat (32), wherein the output end of the electric cylinder (31) is connected with the linear seat (32), the output end of the electric cylinder (31) is fixedly connected with a deflector rod (33), and the deflector rod (33) is connected with the external gear (22).

5. The recycling structure in the escape apparatus of subway car according to claim 4, wherein: the shell (1) is internally detachably connected with a bracket (11), and the electric cylinder (31) is fixedly connected to the bracket (11).

6. The recycling structure in the escape apparatus of subway car according to claim 4, wherein: an annular groove (221) is formed in the outer gear (22), and one end of the deflector rod (33) deviating from the electric cylinder (31) stretches into the annular groove (221).

7. The recycling structure in the escape apparatus of subway car according to claim 6, wherein: the deflector rod (33) comprises a sleeve (331) and a connecting piece (332), wherein the sleeve (331) and the connecting piece (332) are integrally formed, and a transverse piece (333) is connected between the sleeve (331) and the connecting piece (332).

8. The recycling structure in the escape apparatus of subway car according to claim 7, wherein: an arc-shaped section (334) is formed on the inner side of the connecting piece (332), the width of the arc-shaped section (334) is smaller than that of the connecting piece (332), and the arc-shaped section (334) stretches into the annular groove (221).

9. The recovery structure in an escape apparatus for a subway car according to claim 1, wherein: one of them the tip swing joint of ladder axle (21) has major axis (23), major axis (23) with be connected with a plurality of first bearings (12) between casing (1), fixedly connected with a plurality of first pulleys (24) on major axis (23).

10. The recovery structure in an escape apparatus for a subway car according to claim 9, wherein: a second bearing (13) is connected between the ladder shaft (21) and the shell (1), and a second belt wheel (25) is fixedly connected to the other ladder shaft (21).