Telescopic transmission mechanism of suspended large-span shielding door

Abstract

The utility model provides a suspended large-span shielding door telescopic transmission mechanism which comprises a shielding door body and a machine box, a transmission mechanism body used for driving the shielding door body to do telescopic motion is installed in the machine box, the transmission mechanism body comprises a sliding rail and a fixing base, and the sliding rail is horizontally and fixedly installed on the top side of a top fixing beam in the machine box. A sliding block is slidably mounted at the top of the sliding rail, an upper cross beam is horizontally and fixedly mounted on one side of the bottom of the sliding block, and the upper cross beam horizontally penetrates into the inner top side of the shielding door body and is fixedly connected with the shielding door body; a lower cross beam is slidably mounted on the top side of the fixed base, and a supporting beam is vertically connected between the lower cross beam and the upper cross beam. The supporting beams are used in cooperation with the upper cross beam and the lower cross beam, so that the shielding door body can be stably supported, it is guaranteed that the shielding door body has high stability and high structural strength during horizontal movement, meanwhile, due to the design that no auxiliary supporting wheel is arranged, the structure of equipment is simplified, the door body runs in a suspended mode, and the service life of the shielding door body is prolonged. And the device has the advantages of simple structure and low maintenance requirement.

Description

Technical Field

[0001] The utility model belongs to the technical field of rail transportation, and more specifically, relates to a telescopic transmission mechanism for a suspended large-span screen door. Background Art

[0002] A platform screen door refers to a glass curtain wall that surrounds the subway platform and the train boarding and alighting space on the platform of a rail transit station. When the train arrives, the electric door on the glass curtain wall opens for passengers to get on and off the train. There are two main types of platform screen doors. One type of platform screen door is a full-facade glass partition wall and movable door. The other type of platform screen door system is a glass partition wall without a top and a sliding door or a stainless steel fence door, which is a semi-enclosed type.

[0003] Semi-enclosed screen doors are typically installed above ground level and consist of a chassis, a screen door body, and a transmission mechanism. During operation, the transmission mechanism drives the screen door body. In the prior art, auxiliary support wheels are typically installed at one end of the bottom of semi-enclosed, large-span screen doors to provide auxiliary support for the screen door. However, after prolonged operation, the auxiliary support wheels are susceptible to wear from the ground, requiring regular maintenance and replacement. Furthermore, the auxiliary support wheels are susceptible to impacts from floor debris during operation, leading to collisions and jamming, which can negatively impact the overall operation of the device. Therefore, in light of these issues, research and improvements were conducted to address the existing structure and shortcomings, providing a telescopic transmission mechanism for suspended, large-span screen doors, with the goal of achieving greater practical value. Utility Model Content

[0004] In order to solve the above technical problems, the present invention provides a telescopic transmission mechanism for a suspended large-span screen door, which is achieved by the following specific technical means:

[0005] A telescopic transmission mechanism for a suspended large-span screen door comprises a screen door body and a chassis, wherein a transmission mechanism for driving the telescopic movement of the screen door body is installed inside the chassis, and the transmission mechanism comprises a slide rail and a fixed base, wherein the slide rail is horizontally fixedly installed on the top side of the top fixed beam in the chassis, a slider is slidably installed on the top of the slide rail, an upper crossbeam is horizontally fixedly installed on the bottom side of the slider, the upper crossbeam horizontally penetrates the inner top side of the screen door body and is fixedly connected thereto; the fixed base is fixedly installed on one end of the bottom of the chassis, a lower crossbeam is slidably installed on the top side of the fixed base, a support beam is vertically connected between the lower crossbeam and the upper crossbeam, and the top side of the lower crossbeam is fixedly connected to the bottom side of the screen door body.

[0006] Furthermore, the transmission mechanism also includes a motor bracket and a fixing frame fixedly installed on the top of the chassis, a driving motor is fixedly installed on the bottom side of the motor bracket, a synchronous wheel 1 is fixedly installed on the motor shaft of the driving motor, and the synchronous wheel 1 is installed on the top side of the motor bracket; a synchronous wheel 2 is rotatably installed on the top side of the fixing frame, and a synchronous belt is horizontally connected between the synchronous wheel 2 and the synchronous wheel 1.

[0007] Furthermore, a connecting block is connected to one side of the synchronous belt, and the connecting block is fixedly connected to the slider via a fastener.

[0008] Furthermore, buffer blocks are fixedly installed on both the left and right sides of the slider, and the buffer blocks are all rubber blocks.

[0009] Furthermore, two sets of guide wheels are fixedly installed on the top of the fixed base, and the two sets of guide wheels are respectively connected to the front and rear sides of the lower beam in a rolling manner; the number of guide wheels in each set is two.

[0010] Furthermore, the transmission mechanism also includes a controller fixedly installed inside the chassis, and the controller is electrically connected to the drive motor.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] The utility model can achieve stable support for the shield door body through the coordinated use of the support beam, the upper crossbeam and the lower crossbeam, so as to ensure that it has high stability and high structural strength when moving horizontally. At the same time, its design without auxiliary support wheels simplifies the structure of the equipment, allowing the door body to run in mid-air, and has the advantages of simple structure and low maintenance requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a disassembly diagram of the utility model.

[0014] Figure 2 It is a schematic diagram of the connection between the transmission mechanism and the shield door body of the utility model.

[0015] Figure 3 yes Figure 2 A magnified schematic diagram of the structure in the middle.

[0016] Figure 4 yes Figure 2 A magnified schematic diagram of the structure B in the middle.

[0017] Figure 5 yes Figure 2 Enlarged schematic diagram of the C structure in the middle.

[0018] Figure 6 The utility model is a schematic diagram of the combined use of the suspended large-span screen door.

[0019] In the figure, the corresponding relationship between the component names and the drawing numbers is as follows:

[0020] 1. Shield door body; 2. Chassis; 3. Transmission mechanism;

[0021] 301. Slide rail; 302. Drive motor; 303. Synchronous pulley 1; 304. Synchronous belt; 305. Controller; 306. Slider; 307. Connecting block; 308. Fixed frame; 309. Synchronous pulley 2; 3010. Buffer block; 3011. Upper beam; 3012. Support beam; 3013. Lower beam; 3014. Fixed base; 3015. Guide wheel. DETAILED DESCRIPTION

[0022] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0023] In the description of this utility model, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances. Example

[0025] As attached Figure 1 To the attached Figure 6 As shown:

[0026] The utility model provides a telescopic transmission mechanism for a suspended large-span screen door, comprising a screen door body 1 and a chassis 2, wherein a transmission mechanism 3 for driving the screen door body 1 to telescope is installed inside the chassis 2, and the transmission mechanism 3 comprises a slide rail 301 and a fixed base 3014, wherein the slide rail 301 is horizontally fixedly installed on the top side of the top fixed beam in the chassis 2, a slider 306 is slidably installed on the top of the slide rail 301, and an upper crossbeam 3011 is horizontally fixedly installed on the bottom side of the slider 306, and the upper crossbeam 3011 is horizontally fixedly installed, and the upper crossbeam 3011 horizontally penetrates the inner top side of the screen door body 1 and is fixedly connected thereto; the fixed base 3014 is fixedly installed at one end of the inner bottom of the chassis 2, and a lower crossbeam 3013 is slidably installed on the top side of the fixed base 3014, a support beam 3012 is vertically connected between the lower crossbeam 3013 and the upper crossbeam 3011, and the top side of the lower crossbeam 3013 is fixedly connected to the bottom side of the screen door body 1.

[0027] Among them, the transmission mechanism 3 also includes a motor bracket and a fixing frame 308 fixedly installed on the top of the chassis 2, the bottom side of the motor bracket is fixedly installed with a driving motor 302, the motor shaft of the driving motor 302 is fixedly installed with a synchronous wheel 1 303, and the synchronous wheel 1 303 is installed on the top side of the motor bracket; the top side of the fixing frame 308 is rotatably installed with a synchronous wheel 2 309, and a synchronous belt 304 is horizontally connected between the synchronous wheel 2 309 and the synchronous wheel 1 303. The use of a horizontally arranged synchronous belt 304 can save upper space of the chassis 2 and has good stability and smooth operation.

[0028] A connecting block 307 is connected to one side of the synchronous belt 304 , and the connecting block 307 is fixedly connected to the slider 306 via a fastener to drive the slider 306 to move synchronously with the synchronous belt 304 .

[0029] Among them, buffer blocks 3010 are fixedly installed on the left and right sides of the slider 306, and the buffer blocks 3010 are all rubber blocks, so as to provide buffering when the slider 306 runs to the extreme position, preventing direct collision and affecting the service life and quietness of use.

[0030] Among them, two sets of guide wheels 3015 are fixedly installed on the top of the fixed base 3014, and the two sets of guide wheels 3015 are respectively connected to the front and rear sides of the lower beam 3013 in a rolling manner; the number of each set of guide wheels 3015 is two, so as to achieve stable limiting of the front and rear of the lower beam 3013, which is conducive to its stable movement.

[0031] The transmission mechanism 3 further includes a controller 305 fixedly installed inside the chassis 2 , and the controller 305 is electrically connected to the drive motor 302 .

[0032] Working principle of this embodiment: The utility model can achieve stable support for the shielding door body 1 through the coordinated use of the support beam 3012 with the upper crossbeam 3011 and the lower crossbeam 3013, so as to ensure that it has high stability and high structural strength when moving horizontally. At the same time, its design without auxiliary support wheels simplifies the structure of the equipment, allowing the door body to run in mid-air, with the advantages of simple structure and low maintenance requirements.

[0033] The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

Claims

1. A telescopic transmission mechanism for a suspended large-span screen door, comprising a screen door body (1) and a chassis (2), wherein a transmission mechanism (3) for driving the screen door body (1) to telescopically move is installed inside the chassis (2), and characterized in that: The transmission mechanism (3) comprises a slide rail (301) and a fixed base (3014), wherein the slide rail (301) is horizontally fixedly mounted on the top side of the top fixed beam in the chassis (2), a slider (306) is slidably mounted on the top of the slide rail (301), and an upper crossbeam (3011) is horizontally fixedly mounted on one side of the bottom of the slider (306), and the upper crossbeam (3011) is horizontally fixedly mounted, and the upper crossbeam (3011) horizontally penetrates the inner top side of the shielding door body (1) and is fixedly connected thereto; the fixed base (3014) is fixedly mounted on one end of the inner bottom of the chassis (2), and a lower crossbeam (3013) is slidably mounted on the top side of the fixed base (3014), a support beam (3012) is vertically connected between the lower crossbeam (3013) and the upper crossbeam (3011), and the top side of the lower crossbeam (3013) is fixedly connected to the bottom side of the shielding door body (1).

2. The telescopic transmission mechanism for a suspended large-span platform screen door according to claim 1, characterized in that: The transmission mechanism (3) further comprises a motor bracket and a fixing frame (308) fixedly mounted on the top of the chassis (2); a driving motor (302) is fixedly mounted on the bottom side of the motor bracket; a synchronous wheel 1 (303) is fixedly mounted on the motor shaft of the driving motor (302); and the synchronous wheel 1 (303) is mounted on the top side of the motor bracket; a synchronous wheel 2 (309) is rotatably mounted on the top side of the fixing frame (308), and a synchronous belt (304) is horizontally connected between the synchronous wheel 2 (309) and the synchronous wheel 1 (303).

3. The telescopic transmission mechanism for a suspended large-span platform screen door according to claim 2, characterized in that: One side of the synchronous belt (304) is connected to a connecting block (307), and the connecting block (307) is fixedly connected to the slider (306) via a fastener.

4. The telescopic transmission mechanism for a suspended large-span platform screen door according to claim 1, characterized in that: Buffer blocks (3010) are fixedly mounted on both the left and right sides of the slider (306), and the buffer blocks (3010) are all rubber blocks.

5. The telescopic transmission mechanism for a suspended large-span platform screen door according to claim 1, characterized in that: Two sets of guide wheels (3015) are fixedly mounted on the top of the fixed base (3014), and the two sets of guide wheels (3015) are respectively connected in a rolling manner to the front and rear sides of the lower crossbeam (3013); each set of guide wheels (3015) has two in number.

6. The telescopic transmission mechanism for a suspended large-span platform screen door according to claim 1, characterized in that: The transmission mechanism (3) further comprises a controller (305) fixedly mounted inside the chassis (2), and the controller (305) is electrically connected to the drive motor (302).

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