CN209875872U

CN209875872U - Driven wheel assembly with built-in door driving mechanism

Info

Publication number: CN209875872U
Application number: CN201920467991.2U
Authority: CN
Inventors: 刘春梅
Original assignee: BEIJING SINOTALENT TECHNOLOGY DEVELOPMENT Co Ltd
Current assignee: BEIJING SINOTALENT TECHNOLOGY DEVELOPMENT Co Ltd
Priority date: 2019-04-09
Filing date: 2019-04-09
Publication date: 2019-12-31
Anticipated expiration: 2029-04-09

Abstract

The utility model discloses a driven wheel subassembly of built-in door actuating mechanism, its characterized in that: the driven gear comprises a driven wheel bracket, a driven toothed belt wheel and a driven toothed belt wheel shaft, wherein the fixed end of the driven toothed belt wheel shaft is connected with the driven wheel bracket, and the driven toothed belt wheel can be rotatably arranged at the cantilever end of the driven toothed belt wheel shaft; and an adjusting device for adjusting the tension degree of the toothed belt is arranged at the joint of the driven toothed belt wheel shaft and the driven wheel bracket. The problem that the built-in door toothed belt cannot be adjusted after being loosened in the prior art is solved, the tightness of the toothed belt can be conveniently adjusted, and the stability and the reliability of the built-in door opening and closing process are guaranteed.

Description

Driven wheel assembly with built-in door driving mechanism

Technical Field

The utility model relates to a transportation vehicles field, concretely relates to a actuating mechanism that is used for interior hidden door of traffic system.

Background

The built-in door structure is widely applied to a traffic system by the characteristics of simple installation, light weight, small space and flexible operation. The existing built-in door system is troublesome in maintenance, the gap between the bearing wheel, the anti-jumping wheel and the bearing guide rail cannot be adjusted, the bearing wheel and the bearing guide rail are abraded due to long-term relative movement, the gap is increased, the door leaf can move and shake, the extrusion prevention function is influenced, potential safety hazards are easily caused, and the development of the door system is limited.

Application number 200920110041.0 discloses a modular concealed door, which comprises a left door leaf, a right door leaf, a driving mechanism, a locking structure and an inner and outer emergency unlocking device, wherein the driving structure comprises a linear driver, a left sliding block, a right sliding block and a left and right connecting plate hanging plates; the locking mechanism comprises a central locking plate, a central locking motor for driving the central locking plate to lift and a locking shaft which is arranged on the driving mechanism and can be clamped by the central locking plate, and the locking mechanism is arranged above the middle point of the linear driver; the inner and outer emergency unlocking device comprises a steel wire rope, an unlocking pull rod and an unlocking cam, wherein the steel wire rope is connected with the unlocking pull rod, the unlocking pull rod is connected with the unlocking cam, and the unlocking cam drives the central locking plate. Since the toothed belt becomes loose after a long time of use when the motor toothed belt wheel is not used, the door opening and closing action is not flexible, and even the door opening and closing action fails, a driven wheel assembly capable of adjusting the tension degree of the toothed belt is called as a target pursued by the skilled person.

Disclosure of Invention

The utility model relates to an overcome the problem that interior concealed door transmission toothed belt rate of tension can not be adjusted among the prior art, and then make interior concealed door switch action inflexible, and provide one kind and be used for interior concealed door actuating mechanism from driving wheel assembly, make the transmission toothed belt can the rate of tension suitable, ensure that interior concealed door switch in-process toothed belt transmission does not produce the trouble.

The utility model provides a driven wheel subassembly of built-in door actuating mechanism, its characterized in that: the driven wheel bracket is fixedly arranged on a bearing track beam, the fixed end of the driven gear shaft is connected with the driven wheel bracket, and the driven gear wheel can be rotatably arranged at the cantilever end of the driven gear shaft; and an adjusting device for adjusting the tension degree of the toothed belt is arranged at the joint of the driven toothed belt wheel shaft and the driven wheel bracket.

Preferably, the adjusting device comprises a sliding block, and a rectangular sliding groove for the sliding block to slide is formed in a bottom plate of the driven wheel bracket; adjusting screws are respectively arranged at two ends of the bottom plate, the end parts of the adjusting screws are in contact with two ends of the sliding block, and locking nuts are arranged on the adjusting screws outside the two ends of the bottom plate; the fixed end of the driven gear shaft penetrates through the central hole of the bottom plate and is fixedly connected with the sliding block; the sliding block is fixedly connected with a bottom plate of the driven wheel bracket through a bolt.

Preferably, the adjusting device comprises a strip-shaped mounting hole formed in a bottom plate of the driven wheel bracket, the fixed end of the driven toothed pulley shaft is locked on the bottom plate through a fixing nut, an upper locking pressing block is arranged between the fixing nut and the bottom plate, and a lower locking cushion block is arranged between the bottom plate and a shaft shoulder of the driven toothed pulley shaft; and an adjusting screw rod for driving the driven gear shaft to move along the moving direction of the door is arranged on the side surface of the mounting hole of the bottom plate.

Preferably, the number of the adjusting screws is two, the front ends of the adjusting screws are in contact with two sides of the driven toothed belt wheel shaft, the contact positions of the two sides of the driven toothed belt wheel shaft and the adjusting screws are arc-surface-shaped, and locking nuts are arranged on the adjusting screws on the outer sides of the two ends of the bottom plate.

Preferably, the number of the adjustment screws is one, the adjustment screws are rotatably provided on the base plate, and the driven sprocket shaft has a threaded hole that is engaged with the adjustment screws.

Preferably, the adjusting screw is provided on the base plate through a bearing.

Preferably, the driven toothed pulley is fixed to the cantilever end of the driven toothed pulley shaft by two bearings.

Preferably, baffles are provided at both ends of the driven toothed pulley.

Because the utility model discloses increased adjusting device in following the driving wheel subassembly, can adjust the rate of tension that is used for the interior cingulum of drive hidden door to make the security of hidden door switching good, the reliability is high.

The utility model discloses an adjusting device is preferred two kinds of schemes, through set up the spout on following driving wheel support bottom plate for the part-slider of fixed driven toothed belt shaft can slide from side to side in the spout through the drive of adjusting screw rod, thereby drives and removes about the driven toothed belt wheel, and then reaches the purpose of adjustment toothed belt elasticity. The other mode is that the driven gear shaft is directly driven to move left and right by adjusting the screw rod, so that the purpose of adjustment is achieved. It has simple structure convenient operation's advantage.

Drawings

FIG. 1 is a schematic view of an internal door drive mechanism;

FIG. 2 is a perspective view of embodiment 1 of a driven wheel assembly incorporating a door drive mechanism;

FIG. 3 is a cross-sectional view of embodiment 1 of a driven wheel assembly incorporating a door drive mechanism;

FIG. 4 is a schematic view of embodiment 2 of a driven wheel assembly incorporating a door drive mechanism;

fig. 5 is a schematic view of a driven wheel assembly of embodiment 3 incorporating a door drive mechanism.

Reference numerals: a load bearing track beam 1; a drive motor assembly 2; a driven wheel assembly 3; a toothed belt 4; a central rotary lock assembly 5; a hanger 100; a hanger 200;

driven wheel bracket 31, bottom plate 311, central hole 312, mounting hole 312' runner 313;

driven sprocket 32, shutter 321; a driven sprocket shaft 33;

adjusting device 34, slider 341, elongated hole 3411, adjusting screw 342, and lock nut 343;

a bearing 35; a bolt 36; a fixing nut 37; an upper locking press block 38; a lower locking pad 39.

Detailed Description

Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1, a concealed door driving mechanism is shown, which comprises a bearing track beam 1, a driving motor assembly 2 arranged at one end of the bearing track beam 1, a driven wheel assembly 3 arranged at the other end of the bearing track beam 1, a toothed belt 4 connected with the driving motor assembly 2, the driven wheel assembly 3 and a door leaf hanging assembly, and a central rotary lock assembly 5 arranged in the middle of the bearing track beam 1 and used for realizing opening, closing and locking of a concealed door; the toothed belt 4 is connected to hangers 100 and 200 for mounting a door leaf to be built in, and linear motion is provided to the toothed belt 4 and the hangers 100 and 200 by the driving motor unit 2, thereby completing the door opening and closing operation. The following describes the driven wheel assembly 3 with the built-in door driving mechanism according to the present invention in detail.

Embodiment 1, as shown in fig. 2 and 3, the present invention provides a driven wheel assembly 3 with a built-in door driving mechanism, which includes a driven wheel bracket 31, a driven sprocket 32 and a driven sprocket shaft 33, wherein the driven wheel bracket 31 is fixed on a bearing track beam 1, the fixed end of the driven sprocket shaft 33 is connected to the driven wheel bracket 31, the driven sprocket 32 is rotatably provided at the cantilever end of the driven sprocket shaft 33, specifically, the driven sprocket 32 is fixed at the cantilever end of the driven sprocket shaft 33 through two bearings 35, and in order to prevent belt skipping, baffles 321 are provided at both ends of the driven sprocket 32.

In order to adjust the tension of the toothed belt, the driven wheel assembly 3 comprises an adjusting device 34 for adjusting the tension of the toothed belt, the adjusting device 34 comprises a sliding block 341, a rectangular sliding groove 313 is arranged on the bottom plate 311 of the driven wheel bracket 31, the sliding groove 313 is matched with the sliding block 341 in shape, and the sliding block 341 can slide in the sliding groove 313; adjusting screws 342 are respectively arranged at two ends of the bottom plate 311, the end parts of the adjusting screws 342 are in contact with two ends of the slider 341, the slider 341 is pushed to move left and right by rotating the adjusting screws 342, so that the tension degree of the toothed belt 4 is adjusted, threaded holes are formed in two ends of the bottom plate 311 and are used for being connected with the adjusting screws 342, and locking nuts 343 are arranged on the outer sides of two ends of the bottom plate 311 and are used for fixing after adjustment; the fixed end of the driven gear shaft 33 passes through the central hole 312 of the bottom plate to be screwed with the sliding block 341, and the end part of the driven gear shaft is locked by a fixed nut 37; bolts 36 are arranged at two ends of the sliding block 341 to fixedly connect the sliding block 341 with the bottom plate 311 of the driven wheel bracket 31, and a hole for the bolt 36 to pass through on the sliding block 341 is a long hole 3411 to provide the left and right movement of the sliding block 341.

Embodiment 2, refer to fig. 4, which shows another driven wheel assembly with built-in door driving mechanism, and the difference from the previous embodiment lies in the structure of the adjusting device 34, the adjusting device 34 includes a strip-shaped mounting hole 312' arranged on the bottom plate 311 of the driven wheel bracket 31, an upper locking pressing block 38 is arranged between the locking nut 343 and the bottom plate 311, and a lower locking cushion block 39 is arranged between the bottom plate 311 and the shaft shoulder of the driven toothed belt wheel shaft 33; the fixed end of the driven sprocket shaft 33 is locked on the bottom plate 311 through a fixed nut 37; the side surface of the mounting hole 312' of the bottom plate 311 is provided with two adjusting screws 342 for driving the driven sprocket shaft 33 to move along the door moving direction, the front end of each adjusting screw 342 is in contact with two sides of the driven sprocket shaft 33, the contact part between two sides of the driven sprocket shaft 33 and the adjusting screws is in a concave arc shape, and the adjusting screws 342 on the outer sides of two ends of the bottom plate 311 are provided with locking nuts 343. At this time, the adjustment screw 342 directly drives the adjustment screw 342 to move left and right, thereby adjusting the tension of the toothed belt.

Embodiment 3, referring to fig. 5, the difference from the previous embodiment is that the adjusting screw 342 is one, the driven sprocket shaft 33 has a threaded hole matched with the adjusting screw 342, the adjusting screw 342 is rotatably disposed on the bottom plate 311, preferably, the adjusting screw 342 is disposed through a bearing, and by rotating the adjusting screw 342, the driven sprocket shaft 33 does not rotate, and therefore, the driven sprocket shaft moves linearly along the adjusting screw 342, thereby adjusting the tension of the sprocket.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that various modifications, changes, and equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A driven wheel assembly with a built-in door driving mechanism is characterized in that: the driven wheel support (31) is fixedly arranged on a bearing track beam (1), the fixed end of the driven gear wheel shaft (33) is connected with the driven wheel support (31), and the driven gear wheel (32) can be rotatably arranged at the cantilever end of the driven gear wheel shaft (33); and an adjusting device (34) for adjusting the tightness of the toothed belt is arranged at the joint of the driven toothed belt shaft (33) and the driven wheel bracket (31).

2. The driven wheel assembly with a built-in door driving mechanism as claimed in claim 1, wherein: the adjusting device (34) comprises a sliding block (341), and a rectangular sliding groove (313) for the sliding of the sliding block (341) is arranged on a bottom plate (311) of the driven wheel bracket (31); adjusting screw rods (342) are respectively arranged at two ends of the bottom plate (311), the end parts of the adjusting screw rods (342) are in contact with two ends of the sliding block (341), and locking nuts (343) are arranged on the adjusting screw rods (342) at the outer sides of the two ends of the bottom plate (311); the fixed end of the driven gear shaft (33) penetrates through a central hole (312) of the bottom plate to be fixedly connected with the sliding block (341); the sliding block (341) is fixedly connected with a bottom plate of the driven wheel bracket (31) through a bolt (36).

3. The driven wheel assembly with a built-in door driving mechanism as claimed in claim 1, wherein: the adjusting device (34) comprises a strip-shaped mounting hole (312') formed in a bottom plate (311) of the driven wheel support (31), the fixed end of the driven gear wheel shaft (33) is locked on the bottom plate (311) through a fixing nut (37), an upper locking pressing block (38) is arranged between the fixing nut (37) and the bottom plate (311), and a lower locking cushion block (39) is arranged between the bottom plate (311) and a shaft shoulder of the driven gear wheel shaft (33); an adjusting screw rod (342) for driving the driven gear shaft (33) to move along the door moving direction is arranged on the side surface of the mounting hole (213') of the bottom plate (311).

4. The driven wheel assembly with a built-in door driving mechanism as claimed in claim 3, wherein: the number of the adjusting screws (342) is two, the front ends of the adjusting screws (342) are in contact with two sides of the driven gear shaft (33), the contact positions of the two sides of the driven gear shaft (33) and the adjusting screws (342) are arc-surface-shaped, and locking nuts (343) are arranged on the adjusting screws (342) on the outer sides of the two ends of the bottom plate (311).

5. The driven wheel assembly with a built-in door driving mechanism as claimed in claim 3, wherein: the adjusting screw rod (342) is one, the adjusting screw rod (342) is rotatably arranged on the bottom plate (311), and the driven gear shaft (33) is provided with a threaded hole matched with the adjusting screw rod (342).

6. The driven wheel assembly with a built-in door driving mechanism as claimed in claim 5, wherein: the adjusting screw (342) is arranged on the bottom plate (311) through a bearing.

7. The driven wheel assembly for an interior door drive mechanism of any of claims 1-6, wherein: the driven gear wheel (32) is fixed on the cantilever end of the driven gear wheel shaft (33) through two bearings (35).

8. The driven wheel assembly for an interior door drive mechanism of any of claims 1-6, wherein: baffles (321) are also arranged at the two ends of the driven toothed belt wheel (32).