CN210101797U

CN210101797U - Telescopic carriage and sealing device thereof

Info

Publication number: CN210101797U
Application number: CN201920843037.9U
Authority: CN
Inventors: 黄建祥; 赖永坤
Original assignee: Longyan Helios Automobile Co Ltd
Current assignee: Longyan Helios Automobile Co Ltd
Priority date: 2019-06-05
Filing date: 2019-06-05
Publication date: 2020-02-21
Anticipated expiration: 2029-06-05

Abstract

The utility model discloses a telescopic carriage and a sealing device thereof, which comprises a movable carriage, a fixed carriage, a chassis, a telescopic transmission device and a sealing device, wherein the telescopic transmission device adopts a speed reduction reversing wheel and a lead screw for transmission, and a guide rail is arranged on the chassis, so that the movable carriage can be stably telescopic; a sealing device is arranged between the fixed carriage and the movable carriage to prevent rainwater and foreign matters from entering the carriage. The utility model has the advantages of flexible steady, seal structure set up rationally, can prevent effectively that rivers from getting into the carriage.

Description

Telescopic carriage and sealing device thereof

Technical Field

The utility model relates to a flexible vehicle field especially relates to a flexible carriage and sealing device thereof.

Background

Due to the limitation of road driving, the length or width of the carriage of the commercial vehicle is limited, and in order to enlarge the use space of the vehicle or meet the requirements of field operation, the telescopic carriage is widely applied to refitted vehicles, such as recreational vehicles, communication vehicles, detection vehicles and the like. With the development of technology, in order to meet the actual demands of various different working scenes, equipment and equipment are integrally installed on the chassis in more and more industrial fields, but due to the limitation of the use scenes, the equipment installed and fixed in the carriage is inconvenient to transfer and connect, so that the telescopic carriage gradually becomes a demand.

The telescopic carriage generally adopts a hydraulic oil cylinder or a screw rod, and can be transversely or longitudinally stretched in the vehicle, so that the change of the vehicle space can be quickly realized, but the problem that the telescopic carriage is not stable enough in the stretching process exists. In order to prevent foreign matters and rainwater from entering the carriage to damage internal instruments, the sealing of the telescopic carriage also becomes an important requirement, the conventional telescopic carriage usually adopts a square rubber block, the movement friction resistance is large, the rubber abrasion is fast, and the problems of unreasonable design of a carriage drainage structure and poor waterproof performance exist.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a flexible carriage and sealing device thereof aims at solving the flexible not steady, the unreasonable and not good problem of waterproof performance of seal structure design in current flexible carriage.

The utility model discloses the technical scheme who takes to above-mentioned defect does:

the utility model provides a flexible carriage and sealing device thereof, includes chassis car, fixed carriage, guide rail, removes carriage, telescopic transmission and sealing device, and fixed carriage fastening is installed on the chassis car, and the guide rail is fixed on the chassis car surface, and telescopic transmission installs in fixed carriage, links to each other with removing the carriage, removes the carriage bottom and is equipped with the guide rail seat, guide rail seat and guide rail gomphosis.

The sealing device is arranged in a gap between the fixed carriage and the movable carriage and is fixed on the movable carriage.

The telescopic transmission device comprises a motor, a coupler, a speed reduction commutator, a transmission shaft, a lead screw transmission box, a lead screw and a lead screw sliding seat, wherein the motor and the speed reduction commutator are connected through the coupler, two sides of the speed reduction commutator are respectively connected with the lead screw transmission box through the transmission shaft, the lead screw transmission box is vertically connected with the lead screw, the lead screw sliding seat is arranged on the lead screw, and the lead screw sliding seat is fixedly connected with the movable carriage.

The sealing device comprises a water guide plate and sealing rings, the water guide plate is fixed on the upper side and two side faces of the front part of the movable carriage, and the sealing rings are installed on the water guide plate.

Furthermore, the speed reduction commutator comprises a bevel gear driving wheel and two bevel gear driven wheels, and the number of teeth of the bevel gear driving wheel is less than that of the bevel gear driven wheels.

Preferably, the movable carriage is further provided with a cross beam and an inclined strut, the cross beam is connected with two side faces of the movable carriage, and the inclined strut is connected with the top and the side faces of the movable carriage.

Preferably, the sealing ring of the sealing device is an O-ring.

Furthermore, the length of the water guide plate of the sealing device extends to the lower part of the side face of the fixed carriage, the tail end of the water guide plate is bent backwards, and a water baffle is arranged below the water guide plate.

Preferably, the sealing means are arranged two by two.

Further, the top of the movable carriage is of a structure with a high middle part and two low sides.

The utility model discloses following beneficial effect has:

1. by utilizing the speed-reducing commutator and the screw rod transmission principle, the symmetrically arranged screw rod transmission devices can synchronously and stably propel the telescopic carriage in the telescopic process.

2. The sealing device with the O-shaped sealing ring is arranged, the contact area of the O-shaped sealing ring and the carriage is small, the loss of the sealing ring can be effectively reduced in the carriage stretching process, and the service life is prolonged.

3. The two sealing devices are arranged, the length of the water guide plate is longer than that of the side face of the carriage, the water guide plate is bent backwards at the tail end, and the water baffle plate is arranged below the water guide plate, so that rainwater and foreign matters can be effectively prevented from entering the fixed carriage.

4. The top structure of the movable carriage is set as a result that the middle part is high, the two sides are low, and arc transition is carried out on the two sides, so that rainwater can be naturally discharged downwards from the bottom of the carriage.

Drawings

FIG. 1 is a schematic view of the overall structure of the embodiment of the present invention

FIG. 2 is a schematic view of the connection of the carriage internal telescopic transmission device of the embodiment of the present invention

FIG. 3 is a schematic view of a mobile carriage structure according to an embodiment of the present invention

FIG. 4 is an enlarged view of FIG. 1 at A

FIG. 5 is an enlarged view of FIG. 2 at B

Fig. 6 is a schematic view of a carriage part structure of an embodiment of the present invention

In the figure: 1-moving carriage, 2-fixed carriage, 3-chassis vehicle, 11-frame, 12-mask, 13-beam, 14-diagonal brace, 15-guide rail seat, 201-fixed carriage side beam, 21-motor, 22-coupler, 23-speed reduction reversing wheel, 24-transmission shaft, 25-screw transmission box, 26-screw, 27-screw sliding seat, 31-guide rail, 32-supporting channel steel, 41-water deflector, 42-O-shaped sealing ring and 43-water deflector.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It should be noted that the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in figure 1, the telescopic carriage and the sealing device thereof comprise a chassis 3, a fixed carriage 2 and a movable carriage 1, wherein the fixed carriage 2 is installed on the chassis 3 through a fastening device, and the movable carriage 1 can reciprocate on the chassis 3 and can be retracted into the fixed carriage 2.

As shown in fig. 2, the telescopic transmission device for driving the movable carriage 2 to perform telescopic motion includes: the device comprises a motor 21, a coupler 22, a speed reduction reversing wheel 23, a transmission shaft 24, a screw rod transmission box 25, a screw rod 26 and a screw rod telescopic seat 27. The motor 21 is connected with a speed reduction reversing wheel 23 through a coupler 22, the speed reduction reversing wheel 23 is composed of a bevel gear driving wheel and two bevel gear driven wheels, the number of teeth of the driven wheels is larger than that of the driving wheel, so that the speed reduction wheel is formed, and the axes of the bevel gear driven wheels and the bevel gear driven wheels are vertical, so that the purpose of reversing is achieved.

As shown in fig. 2, the decelerating and reversing wheel 23 is connected to two symmetrically arranged lead screw transmission boxes 25 through transmission shafts 24, the lead screw transmission boxes 25 are vertically connected to a lead screw 26, a lead screw sliding seat 27 is arranged on the lead screw 26, and the lead screw sliding seat 27 is fixed at the bottom of the front end of the moving carriage 1. According to the screw transmission principle, the screw rod sliding seat 27 reciprocates on the screw rod 26, so as to drive the moving carriage 1 to move.

As shown in fig. 3, the movable carriage 1 is composed of a frame 11, a mask 12, a cross beam 13, an inclined strut 14 and a guide rail seat 15, the frame 11 is of a door frame type structure, the mask 12 is arranged on the top and the side, the cross beam 13 is connected with two sides of the movable carriage 1, the inclined strut 14 is connected with the top and the side of the movable carriage 1, the strength of the movable carriage 1 can be increased through the arranged cross beam 13 and the inclined strut 14, and the movable carriage 1 is prevented from deforming in the telescopic process. The top of the movable carriage 1 is set to be a structure with a high middle part and two ends, and the two ends are in arc transition to the side surface, so that rainwater can flow away from the top of the carriage to the two sides quickly.

As shown in fig. 1, 4 and 5, the sealing device for the telescopic vehicle compartment includes a water deflector 41, an O-ring 42 and a water deflector 43. The water guide plates 41 are provided on the top and both sides of the mobile cabin 1, and O-rings 42 are mounted on the water guide plates 41. Because remove carriage 1 at flexible in-process, need sealed distance long, in order to avoid at flexible in-process, inside rainwater and the clearance entering carriage of foreign matter through two carriages, set up twice sealing device, and water deflector 41 extends to and removes carriage 1 side bottom and buckle to the carriage rear portion at the tail end to set up breakwater 43 below water deflector 41, make the rainwater pass through water deflector 41 and breakwater 43 and be discharged by carriage bottom and rear portion.

As shown in fig. 6, in order to enable the movable carriage 1 to be extended and contracted smoothly, the chassis 3 is provided with a guide rail 31 and a support channel 32, the guide rail 31 is provided on the support channel 32, and the guide rail seat 15 at the bottom of the movable carriage 1 is fitted to the guide rail 31, so that the movable carriage 1 is extended and contracted smoothly according to the track of the guide rail 31 by being pushed by the extension and contraction driving device. And in order to discharge the car with the rainwater more fast outside, will fix 2 boundary beams 201 of carriage and set up with 3 surface parallel and level of chassis car, the rainwater flows to the side gap in through the carriage top, can directly arrange the vehicle bottom through the clearance between 2 side of fixed carriage and the 2 boundary beams of fixed carriage, rather than discharge from the carriage afterbody along the boundary beam, can reduce the inside ponding of carriage, and can avoid because of equipment focus changes ponding and flow backward along the boundary beam and get into the carriage risk.

The above is only the best embodiment of the present invention, but the present invention should not be limited to the disclosure of the embodiment and the accompanying drawings. Therefore, equivalent substitutions and modifications made without departing from the principles of the present invention fall within the protection scope of the present invention.

Claims

1. The utility model provides a flexible carriage and sealing device thereof, includes chassis car, fixed carriage, guide rail, removes carriage, telescopic transmission and sealing device, its characterized in that: the fixed carriage is fixedly arranged on the chassis truck, the guide rail is fixed on the surface of the chassis truck, the telescopic transmission device is arranged in the fixed carriage and is connected with the movable carriage, the bottom of the movable carriage is provided with a guide rail seat, the guide rail seat is embedded with the guide rail, and the sealing device is arranged in a gap between the fixed carriage and the movable carriage and is fixed on the movable carriage;

the telescopic transmission device comprises a motor, a coupler, a speed reduction commutator, a transmission shaft, a lead screw transmission box, a lead screw and a lead screw sliding seat, wherein the motor and the speed reduction commutator are connected through the coupler;

2. A telescopic carriage and its sealing device as claimed in claim 1, characterized in that: the speed reduction commutator comprises a bevel gear driving wheel and two bevel gear driven wheels, wherein the number of teeth of the bevel gear driving wheel is less than that of the bevel gear driven wheels.

3. A telescopic carriage and its sealing device as claimed in claim 1, characterized in that: the movable carriage is further provided with a cross beam and an inclined strut, the cross beam is connected with two side faces of the movable carriage, and the inclined strut is connected with the top and the side faces of the movable carriage.

4. A telescopic carriage and its sealing device as claimed in claim 1, characterized in that: the sealing ring of the sealing device is an O-shaped sealing ring.

5. A telescopic carriage and its sealing device as claimed in claim 1, characterized in that: the length of the water guide plate of the sealing device extends to the lower part of the side face of the fixed carriage, the tail end of the water guide plate is bent backwards, and a water baffle is arranged below the water guide plate.

6. A telescopic carriage and its sealing arrangement, as claimed in claim 1, 4 or 5, characterized in that: the sealing devices are arranged in two rows.

7. A telescopic carriage and its sealing arrangement as claimed in claim 1 or 3, characterised in that: the top of the movable carriage is a structure with a high middle part and two low sides and is in arc transition to the two sides.