CN215850961U

CN215850961U - Side curtain van semi-trailer and electric side curtain mechanism thereof

Info

Publication number: CN215850961U
Application number: CN202122438913.XU
Authority: CN
Inventors: 邬世锋; 蒋彭正
Original assignee: Yangzhou CIMC Tonghua Special Vehicles Co Ltd
Current assignee: Yangzhou CIMC Tonghua Special Vehicles Co Ltd
Priority date: 2021-10-09
Filing date: 2021-10-09
Publication date: 2022-02-18
Anticipated expiration: 2031-10-09

Abstract

The utility model provides a side curtain van semi-trailer and an electric side curtain mechanism thereof. In the side curtain van semi-trailer, the longitudinal beam of the van body is provided with the upper guide rail, the side beam of the frame is provided with the lower guide rail, and the end side sliding column and the middle side sliding column which are connected with the tarpaulin can slide between the upper guide rail and the lower guide rail. The driving piece is matched with the connecting piece to drive the end side sliding columns to slide so as to drive the middle side sliding column to slide, so that tarpaulin fixed on the side sliding columns is opened or closed, automatic control of tarpaulin opening and closing is achieved, a large amount of manpower is saved, operation of manually opening and closing the tarpaulin is simplified, and operation efficiency of the side curtain van semi-trailer during cargo loading is effectively improved.

Description

Side curtain van semi-trailer and electric side curtain mechanism thereof

Technical Field

The utility model relates to the technical field of semitrailers, in particular to a side curtain van semitrailer and an electric side curtain mechanism thereof.

Background

At present, the curtain cloth of the side curtain van semi-trailer is opened and closed by manual operation. Before loading goods, workers firstly manually open the vertical tightening structure of the curtain cloth, then open the front and rear end tightening mechanism, open the curtain cloth from one end of the vehicle to the other end, and finally move the transverse stop rods and the side sliding columns on the two sides of the side curtain van semi-trailer away, so that the goods loading can be started after the completion of the operation. After the goods are loaded, the side curtains are manually closed according to the steps, and the whole operation is complex.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problems that the side curtain van semi-trailer in the prior art is manually operated to open and close and the overall operation is complex.

In order to solve the technical problem, the utility model provides an electric side curtain mechanism of a side curtain van semi-trailer, which comprises a pair of side curtain modules respectively arranged at two sides of a van body, wherein each side curtain module comprises a guide rail unit, a side curtain unit and a power unit; the guide rail unit comprises an upper guide rail and a lower guide rail, the upper guide rail is arranged on a longitudinal beam of the carriage body, the lower guide rail is arranged on a side beam of the frame, and the upper guide rail and the lower guide rail are oppositely arranged and extend along the length direction of the frame; the side curtain unit comprises tarpaulin and a plurality of side sliding columns arranged at intervals along the length direction of the frame, the side sliding columns are connected through the tarpaulin, and two ends of each side sliding column are respectively arranged in the upper guide rail and the lower guide rail in a sliding manner; the side sliding columns arranged close to the two ends of the frame are end side sliding columns, and the side sliding column arranged between the two end side sliding columns is a middle side sliding column; the power unit comprises a driving piece and a connecting piece; the connecting piece is respectively connected with the driving piece and the end side sliding columns, the driving piece drives the connecting piece to move, so that the connecting piece drives the end side sliding columns to slide in the guide rail unit, the end side sliding columns drive the middle sliding columns to slide, and the tarpaulin is opened or closed.

Optionally, each of the side sliding columns comprises a sliding column main body and an adjusting rod, the sliding column main body is provided with a hollow cavity, and the end of the adjusting rod is slidably inserted into the cavity of the sliding column main body; the end part of the adjusting rod, which is far away from the sliding column main body, is slidably arranged in the upper guide rail, and the end part of the sliding column main body, which is far away from the adjusting rod, is slidably arranged in the lower guide rail; or the end part of the adjusting rod, which is far away from the sliding column main body, is slidably arranged in the lower guide rail, and the end part of the sliding column main body, which is far away from the adjusting rod, is slidably arranged in the upper guide rail.

Optionally, the side sliding columns respectively comprise a sliding column main body and an adjusting rod, the adjusting rod is provided with a hollow cavity, and the end part of the sliding column main body is slidably arranged in the cavity of the adjusting rod in a penetrating manner; the end part of the adjusting rod, which is far away from the sliding column main body, is slidably arranged in the upper guide rail, and the end part of the sliding column main body, which is far away from the adjusting rod, is slidably arranged in the lower guide rail; or the end part of the adjusting rod, which is far away from the sliding column main body, is slidably arranged in the lower guide rail, and the end part of the sliding column main body, which is far away from the adjusting rod, is slidably arranged in the upper guide rail.

Optionally, the side curtain unit further comprises an upper pulley assembly and a lower pulley assembly, the upper pulley assembly comprises an upper fixing piece connected to the top of the side sliding column and an upper pulley rotatably connected to the upper fixing piece, and the lower pulley comprises a lower fixing piece connected to the bottom of the side sliding column and a lower pulley rotatably connected to the lower fixing piece; the upper pulley is slidably arranged in the upper guide rail, the lower pulley is slidably arranged in the lower guide rail, and the rotating axes of the upper pulley and the lower pulley are perpendicular to the length direction of the frame.

Optionally, a plurality of sets of the upper pulley sets and a plurality of sets of the lower pulley sets are respectively disposed at two ends of the end side sliding column, the plurality of sets of the upper pulley sets are disposed at intervals at the top of the end side sliding column, and the plurality of sets of the lower pulley sets are disposed at intervals at the bottom of the end side sliding column.

Optionally, the lower guide rail comprises a main guide groove and a transition groove, the notch of the main guide groove faces to the width direction of the frame, and the lower pulley is slidably arranged in the main guide groove; the transition groove is arranged below the main guide groove, and the notch of the transition groove faces the bottom of the frame.

Optionally, the lower pulley assembly further comprises a transition pulley, and the transition pulley is rotatably connected to the lower fixing piece; the transition pulley is slidably arranged in the transition groove, the peripheral side of the transition pulley is abutted against the groove wall of the transition groove, and the rotation axis of the transition pulley is consistent with the height direction of the frame.

Optionally, the lower guide rail includes a fixed plate, and an extension arm and a transfer arm connected to the fixed plate, the fixed plate is disposed on a side rail of the frame, a cross section of the transfer arm is L-shaped, an end of the transfer arm is vertically connected to the fixed plate, and the transfer groove is formed between the transfer arm and the fixed plate; the extension arm sets up the top of switching arm, the extension arm with the fixed plate is connected perpendicularly, the extension arm with switching arm and constitute between the fixed plate main guide slot.

Optionally, the upper guide rail includes a fixing portion and a pair of bearing portions, the cross section of the fixing portion is C-shaped, one side of the fixing portion is disposed on a longitudinal beam of the compartment body, and an opening of the fixing portion faces downward; the two bearing parts are arranged at the opening of the fixing part and are oppositely arranged on the inner wall of the fixing part, and a space is arranged between the opposite end parts of the two bearing parts; the upper pulley is arranged in the fixing part, the bottom of the upper pulley is abutted to the inner surface of the bearing part, and the upper fixing part is arranged in the interval between the two bearing parts in a penetrating mode.

The utility model also provides a side curtain van semi-trailer which comprises a frame and a van body arranged on the frame, and the side curtain van semi-trailer also comprises the electric side curtain mechanism.

According to the technical scheme, the beneficial effects of the utility model are as follows: in the side curtain van semi-trailer and the electric side curtain mechanism thereof, the longitudinal beam of the van body is provided with the upper guide rail, the side beam of the frame is provided with the lower guide rail, and the end side sliding column and the middle side sliding column which are connected with the tarpaulin can slide between the upper guide rail and the lower guide rail. The driving piece is matched with the connecting piece to drive the end side sliding columns to slide so as to drive the middle side sliding column to slide, so that tarpaulin fixed on the side sliding columns is opened or closed, automatic control of tarpaulin opening and closing is achieved, a large amount of manpower is saved, operation of manually opening and closing the tarpaulin is simplified, and operation efficiency of the side curtain van semi-trailer during cargo loading is effectively improved.

Drawings

Fig. 1 is a schematic structural view of an embodiment of a side curtain van semi-trailer of the utility model.

Fig. 2 is a sectional view of the side curtain van semi-trailer shown in fig. 1 in the direction a-a.

Fig. 3 is a schematic structural view of a side sliding column at the end of the electric side curtain mechanism of the side curtain van semi-trailer shown in fig. 1.

Fig. 4 is an enlarged view at B in fig. 3.

Fig. 5 is a schematic structural view of a side sliding column at the end in another example of the electric side curtain mechanism of the side curtain van semi-trailer shown in fig. 1.

Fig. 6 is an enlarged view at C in fig. 5.

Fig. 7 is a schematic structural view of a middle side sliding column in the electric side curtain mechanism of the side curtain van semi-trailer shown in fig. 1.

Fig. 8 is an enlarged view at D in fig. 7.

FIG. 9 is a cross-sectional view of the center side strut shown in FIG. 8 taken along direction E-E.

Fig. 10 is a schematic view of a middle slide post in another example of the motorized side curtain mechanism of the side curtain van semi-trailer shown in fig. 1.

Fig. 11 is an enlarged view at F in fig. 10.

FIG. 12 is a cross-sectional view of the center side strut shown in FIG. 11 taken along the direction G-G.

Fig. 13 is a schematic view of the structure of the upper track and upper sheave assembly of the side curtain semi-trailer shown in fig. 1.

Fig. 14 is a schematic structural view of the lower guide rail and the lower pulley block of the side curtain semi-trailer shown in fig. 1.

The reference numerals are explained below: 100. a side curtain van semi-trailer; 10. a frame; 11. a boundary beam; 20. a compartment body; 21. a stringer; 30. a side curtain module; 31. a guide rail unit; 311. an upper guide rail; 3111. a fixed part; 3112. a bearing part; 312. a lower guide rail; 3121. a fixing plate; 3122. an extension arm; 3123. a transfer arm; 3124. a main guide groove; 3125. a transition groove; 32. a side curtain unit; 321. tarpaulin; 322. a side strut; 322a, an end side strut; 322b, a middle side strut; 3221. a spool body; 3222. adjusting a rod; 3224. a spool section; 3225. a connecting portion; 323. an upper pulley assembly; 3231. an upper fixing member; 3232. an upper pulley; 324. a lower pulley assembly; 3241. a lower fixing member; 3241a, a first connecting arm; 3241b, a second connecting arm; 3242. a lower pulley; 3243. a transition pulley.

Detailed Description

Exemplary embodiments that embody features and advantages of the utility model are described in detail below in the specification. It is to be understood that the utility model is capable of other embodiments and that various changes in form and details may be made therein without departing from the scope of the utility model and the description and drawings are to be regarded as illustrative in nature and not as restrictive.

For further explanation of the principles and construction of the present invention, reference will now be made in detail to the preferred embodiments of the present invention, which are illustrated in the accompanying drawings.

Referring to fig. 1 and 2, an embodiment of the present application provides a side curtain van semi-trailer 100 and an electric side curtain mechanism thereof. The side curtain van semi-trailer 100 comprises a frame 10 and a van body 20 arranged on the frame 10. The interior of the carriage 20 is used for loading goods, the frame 10 carries the entire carriage 20, and a traveling mechanism (not shown) is further connected to the front end of the frame 10.

In the present embodiment, the electric side curtain mechanism includes a side curtain module 30, the side curtain module 30 is disposed on both sides of the compartment 20, and the side curtain module 30 of the present embodiment includes a guide rail unit 31, a side curtain unit 32, and a power unit (not shown in the figure).

Wherein the guide rail unit 31 includes an upper guide rail 311 and a lower guide rail 312. The upper rail 311 is provided on the side member 21 of the car body 20, and the lower rail 312 is provided on the side member 11 of the vehicle body frame 10. Upper rail 311 and lower rail 312 are oppositely disposed and both extend along the length of frame 10.

The side curtain unit 32 includes a tarpaulin 321 and a plurality of side pillars 322 spaced apart along the length of the frame 10. The plurality of side pillars 322 are connected to each other by a tarpaulin 321, and both ends of the side pillars 322 are slidably disposed in the upper and

lower guide rails

311 and 312, respectively. Side pillars 322 provided near both ends of frame 10 are end side pillars 322a, and side pillar 322 provided between both end side pillars 322a is middle side pillar 322 b.

The power unit includes a driver and a connector that are connected to the driver and the end side strut 322a, respectively. The driving member drives the link to move so that the link drives the end side pillars 322a to slide in the rail unit 31, so that the end side pillars 322a drive the middle side pillars 322b to slide, thereby opening or closing the tarpaulin 321.

Further, the side posts 322 of the present embodiment each include a post body 3221 and an adjustment rod 3222. The sliding column main body 3221 has a hollow cavity, and an end of the adjusting rod 3222 is slidably inserted through the cavity of the sliding column main body 3221.

As shown in fig. 3 and 4, with respect to the end side spool 322a, it includes a pair of oppositely disposed spool portions 3224 and a connecting portion 3225 disposed between the two spool portions 3224. The top and bottom ends of the strut portion 3224 each extend outwardly beyond the end of the connecting portion 3225.

In this embodiment, the top of the connecting portion 3225 is provided with a hollow cavity. Two cavities are arranged in the connecting portion 3225, and the two cavities are arranged at intervals along the length direction of the frame 10. Two adjusting rods 3222 of the end-side sliding column 322a are correspondingly arranged, and the two adjusting rods 3222 are slidably inserted into two cavities of the connecting portion 3225, respectively.

It is understood that the number of the cavities in the connecting portion 3225 may not be limited to two, but may also be three, five, etc., and accordingly, the number of the adjusting rods 3222 of the end side sliding posts 322a is correspondingly set, as long as it is ensured that the adjusting rods 3222 in the end side sliding posts 322a are correspondingly slidably inserted in the connecting portion 3225.

In the end side strut 322a of the present embodiment, the top ends of the two adjustment rods 3222 are slidably disposed in the upper rail 311, and the bottom ends of the pair of strut sections 3224 are slidably disposed in the lower rail 312. This arrangement ensures stability of the entire structure of the end side strut 322a, and ensures stable sliding of the end side strut 322a in the upper rail 311 and the lower rail 312.

In other examples of the present embodiment, a hollow cavity may be opened at the bottom of the connecting portion 3225, and the adjusting rod 3222 of the end side sliding pillar 322a may be slidably inserted into the cavity. The bottom ends of the adjustment rods 3222 are slidably disposed in the lower guide rail 312 and the top ends of the pair of slider portions 3224 are slidably disposed in the upper guide rail 311.

In addition, as shown in fig. 5 and 6, in other examples, a hollow cavity may be opened at the top of the sliding column portion 3224, and the adjusting rod 3222 may be slidably inserted into the cavity of the sliding column portion 3224. Two adjusting rods 3222 are provided, wherein one adjusting rod 3222 may be connected to the connecting portion 3225, and the other adjusting rod 3222 is inserted into the cavity of the sliding column portion 3224.

This arrangement ensures the stability of the entire structure of the end portion side strut 322a, and also ensures the stable sliding of the end portion side strut 322a between the upper rail 311 and the lower rail 312 by the vertical sliding of the adjustment rod 3222 inserted into the strut portion 3224 conforming to the error in the parallelism between the upper rail 311 and the lower rail 312 caused by the deformation of the vehicle body frame 10.

As shown in fig. 7 to 9, for the middle side sliding column 322b, a hollow cavity is provided at the top of the sliding column main body 3221 of the middle side sliding column 322b, and the bottom end of the adjusting rod 3222 is slidably inserted into the cavity. The main body 3221 and the adjusting rod 3222 are both square and cylindrical structures.

In this embodiment, the bottom end of the strut body 3221 of the middle side strut 322b is slidably disposed in the lower guide track 312 and the top end of the adjustment rod 3222 is slidably disposed in the upper guide track 311. This arrangement ensures stability of the entire structure of the intermediate side strut 322b, and ensures stable sliding of the intermediate side strut 322b in the upper rail 311 and the lower rail 312.

In other examples of this embodiment, the bottom end of the main body 3221 of the middle sliding pillar 322b is provided with a hollow cavity, and the top end of the adjusting rod 3222 is slidably inserted into the cavity. The top end of the spool body 3221 of the middle side spool 322b is slidably disposed in the upper guide rail 311 and the bottom end of the adjustment lever 3222 is slidably disposed in the lower guide rail 312.

As shown in fig. 10 to 12, the strut body 3221 of the middle side strut 322b may be provided in a square column structure, and the adjustment lever 3222 may be provided in a cylindrical structure. An adjusting rod 3222 is slidably disposed through the cavity of the strut body 3221, and the adjusting rod 3222 may be mounted inside the strut body 3221 via a bushing.

It is understood that, in other examples, the end portion side sliding column 322a and the middle sliding column 322b may be provided with a hollow cavity at the end portion of the adjusting rod 3222, so that the end portion of the sliding column main body 3221 may be slidably inserted into the cavity of the adjusting rod 3222. The cavity may be disposed at the top end of the adjusting rod 3222, or at the bottom end of the adjusting rod 3222, and correspondingly, the connection position between the adjusting rod 3222 and the sliding column main body 3221 may be switched up and down, and then, the upper guide rail 311 and the lower guide rail 312 are slidably connected to each other.

In this embodiment, the end side strut 322a and the middle side strut 322b are both configured to have a sliding body and an adjusting rod 3222, and the adjusting rod 3222 is slidably inserted into the cavity of the sliding body, so that the end side strut 322a and the middle side strut 322b can conform to the deformation of the vehicle frame 10 under different loading conditions, reduce the error of parallelism between the upper guide rail 311 and the lower guide rail 312 caused by the deformation of the vehicle frame 10, and ensure the stability of the sliding of the end side strut 322a and the middle side strut 322 b.

Further, as shown in fig. 1, 13, and 14, the side curtain unit 32 of the present embodiment further includes an upper pulley assembly 323 and a lower pulley assembly 324. The upper pulley assembly 323 includes an upper fixing member 3231 and an upper pulley 3232 rotatably coupled to the upper fixing member 3231, and the lower pulley assembly 324 includes a lower fixing member 3241 and a lower pulley 3242 rotatably coupled to the lower fixing member 3241.

With the end side strut 322a and the intermediate side strut 322b of the present embodiment, an upper fixing member 3231 is attached to the top end of the adjustment rod 3222, an upper pulley 3232 is slidably disposed in the upper rail 311, a lower fixing member 3241 is attached to the bottom end of the strut main body 3221, and a lower pulley 3242 is slidably disposed in the lower rail 312.

The upper pulley 3232 and the lower pulley 3242 are rotatably connected by a rotating shaft, and a plurality of the upper pulley 3232 and the lower pulley 3242 may be disposed at intervals at two ends of the side sliding column 322, and the rotating axes of the upper pulley 3232 and the lower pulley 3242 are perpendicular to the length direction of the frame 10. When upper pulley 3232 and lower pulley 3242 slide in upper rail 311 and lower rail 312, respectively, end side strut 322a and intermediate side strut 322b can slide in the longitudinal direction of frame 10.

As shown in fig. 3, the end side strut 322a of the present embodiment is provided with two sets of upper pulley assemblies 323 at the top end of the end side strut 322a and two sets of lower pulley assemblies 324 at the bottom end of the end side strut 322 a. Two sets of upper pulley assemblies 323 are spaced apart at the top of end side strut 322a, and two sets of lower pulley assemblies 324 are spaced apart at the bottom of end side strut 322 a.

In the present embodiment, referring to fig. 13, the upper rail 311 includes a fixed part 3111 and a pair of bearing parts 3112. The cross section of the fixing portion 3111 is C-shaped, one side of the fixing portion 3111 is fixed to the side member 21 of the compartment 20, and the opening of the fixing portion 3111 faces downward.

The two support portions 3112 are disposed at the opening of the fixing portion 3111 and are oppositely disposed on the inner wall of the fixing portion 3111. A space is provided between the opposite ends of the two bearing portions 3112. The distance between the ends of the two carrier portions 3112 in the longitudinal direction of the vehicle frame 10 constitutes a horizontally extending tunnel.

The upper pulley 3232 of the present embodiment is disposed inside the fixing portion 3111, and a bottom portion of the upper pulley 3232 abuts on an inner surface of the carrier portion 3112. One end of the upper fixing member 3231 is connected to an upper pulley 3232, and the upper pulley 3232 is rotatably provided on the upper fixing member 3231. The other end of the upper fixing member 3231 is extended out of the space between the two supporting portions 3112 to be fixed to the top end of the adjusting lever 3222.

The receiving portion 3112 provided on the inner wall of the fixing portion 3111 is capable of receiving and fixing the upper pulley 3232 when the upper pulley 3232 slides inside the fixing portion 3111, preventing the upper pulley 3232 from coming out of the fixing portion 3111, and ensuring stable sliding of the upper pulley 3232 on the fixing portion 3111, thereby ensuring stable sliding of the end portion side shoe 322a and the intermediate side shoe 322b in the upper rail 311.

Further, referring to fig. 14, the lower guide rail 312 of the present embodiment includes a fixing plate 3121, and an extension arm 3122 and a transit arm 3123 connected to the fixing plate 3121.

Wherein, the fixing plate 3121 is disposed on the side rail 11 of the frame 10 and extends along the length direction of the frame 10. The extension arm 3122 and the transit arm 3123 are both provided at a side of the fixing plate 3121 facing away from the vehicle frame 10. The cross section of the transit arm 3123 is L-shaped, and the end of the transit arm 3123 is vertically connected to the surface of the fixing plate 3121. A transition groove 3125 is formed between the connecting arm 3123 and the fixing plate 3121, and the notch of the transition groove 3125 faces the bottom of the vehicle frame 10.

An extension arm 3122 is disposed above the transfer arm 3123, the extension arm 3122 is vertically connected to the fixing plate 3121, and a main groove 3124 is formed between the extension arm 3122, the transfer arm 3123 and the fixing plate 3121. In the present embodiment, the notch of the main guide groove 3124 is oriented in the width direction of the vehicle frame 10.

For the lower pulley assembly 324 of this embodiment, the lower pulley assembly 324 further includes a transition pulley 3243, and the transition pulley 3243 is rotatably connected to the lower fixing member 3241.

In this embodiment, the lower fixing member 3241 includes a first connection arm 3241a and a second connection arm 3241b, and the second connection arm 3241b is connected to a bottom end of the first connection arm 3241a in a bent manner. The tip end of the first connecting arm 3241a is fixedly connected to the bottom of the sliding body of the end side strut 322a or the middle side strut 322 b.

The lower pulley 3242 is rotatably coupled to the first coupling arm 3241a by a rotating shaft, and the lower pulley 3242 is slidably disposed in the main guide 3124 and can slide in the extending direction of the main guide 3124. The second connection arm 3241b is disposed below the transit arm 3123, a transition pulley 3243 is rotatably connected to the second connection arm 3241b by a rotation shaft, the transition pulley 3243 is slidably disposed in the transition groove 3125, and the circumferential side of the transition pulley 3243 abuts against the groove wall of the transition groove 3125.

In the present embodiment, the rotation axis of the transition pulley 3243 coincides with the height direction of the vehicle frame 10, i.e., in the vertical direction. When the lower pulley 3242 slides in the main guide groove 3124, the transition pulley 3243 slides in the transition groove 3125. The groove wall of the transition groove 3125 can limit and clamp the transition pulley 3243, so that the rotation axis of the transition pulley 3243 is kept in the vertical direction, the situation that the side sliding column 322 swings left and right in the sliding process is avoided, and the sliding stability of the side sliding column 322 is ensured.

Further, the tarpaulin 321 of the present embodiment is connected to the end side poles 322a and the middle side poles 322b by connectors such as tightening bands, hook and loop fasteners, rivets, etc. so that the end side poles 322a and the middle side poles 322b are connected through the tarpaulin 321. In this embodiment, the tarpaulin 321 is bolted to the upper pulley assembly 323, so that the upper pulley 3232 can be inserted and the adjustment rod 3222 can be replaced.

When the end side pillars 322a slide along the upper and

lower rails

311 and 312, the tarpaulin 321 is interlocked with the middle side pillars 322b so that the end side pillars 322a slide along the middle side pillars 322b, thereby opening or closing the tarpaulin 321.

In this embodiment, the power unit includes a drive member and a coupling member. The driving member of this embodiment is a motor, and the connecting member is a wire rope connected to the end side traveler 322 a.

The motor is in driving connection with the wire rope to drive the wire rope to push or pull the end side sliding column 322a to slide, so that the end side sliding column 322a is linked with the middle side sliding column 322b to slide, the tarpaulin 321 connected with the end side sliding column 322a and the middle side sliding column 322b is unfolded or folded, and the tarpaulin 321 is opened or closed.

For the side curtain van semi-trailer and the electric side curtain mechanism thereof of the embodiment, the longitudinal beam of the van body of the electric side curtain mechanism is provided with the upper guide rail, the side beam of the frame is provided with the lower guide rail, and the end side sliding column and the middle side sliding column which are connected with the tarpaulin can slide between the upper guide rail and the lower guide rail. The driving piece is matched with the connecting piece to drive the end side sliding columns to slide so as to drive the middle side sliding column to slide, so that tarpaulin fixed on the side sliding columns is opened or closed, automatic control of tarpaulin opening and closing is achieved, a large amount of manpower is saved, operation of manually opening and closing the tarpaulin is simplified, and operation efficiency of the side curtain van semi-trailer during cargo loading is effectively improved.

While the present invention has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims

1. The utility model provides an electronic side curtain mechanism of side curtain van semi-trailer which characterized in that, electronic side curtain mechanism includes a pair of side curtain module that sets up respectively in the railway carriage or compartment body both sides of side curtain van semi-trailer, the side curtain module includes:

the guide rail unit comprises an upper guide rail and a lower guide rail, the upper guide rail is arranged on the longitudinal beam of the carriage body, the lower guide rail is arranged on the boundary beam of the frame of the side curtain van semi-trailer, and the upper guide rail and the lower guide rail are oppositely arranged and extend along the length direction of the frame;

the side curtain unit comprises tarpaulin and a plurality of side sliding columns arranged at intervals along the length direction of the frame, the side sliding columns are connected through the tarpaulin, and two ends of each side sliding column are respectively arranged in the upper guide rail and the lower guide rail in a sliding manner; the side sliding columns arranged close to the two ends of the frame are end side sliding columns, and the side sliding column arranged between the two end side sliding columns is a middle side sliding column;

the power unit comprises a driving piece and a connecting piece; the connecting piece is respectively connected with the driving piece and the end side sliding columns, the driving piece drives the connecting piece to move, so that the connecting piece drives the end side sliding columns to slide in the guide rail unit, the end side sliding columns drive the middle sliding columns to slide, and the tarpaulin is opened or closed.

2. The motorized side curtain mechanism of claim 1, wherein the side spools each include a spool body having a hollow cavity and an adjustment rod having an end slidably disposed through the cavity of the spool body;

the end part of the adjusting rod, which is far away from the sliding column main body, is slidably arranged in the upper guide rail, and the end part of the sliding column main body, which is far away from the adjusting rod, is slidably arranged in the lower guide rail; or the end part of the adjusting rod, which is far away from the sliding column main body, is slidably arranged in the lower guide rail, and the end part of the sliding column main body, which is far away from the adjusting rod, is slidably arranged in the upper guide rail.

3. The motorized side curtain mechanism of claim 1, wherein the side travelers each include a traveller body and an adjustment rod having a hollow cavity with an end of the traveller body slidably disposed through the cavity of the adjustment rod;

4. The motorized side curtain mechanism of claim 1, wherein the side curtain unit further comprises an upper pulley assembly and a lower pulley assembly, the upper pulley assembly comprising an upper fixture attached to the top of the side-slipping column and an upper pulley rotatably attached to the upper fixture, the lower pulley comprising a lower fixture attached to the bottom of the side-slipping column and a lower pulley rotatably attached to the lower fixture;

the upper pulley is slidably arranged in the upper guide rail, the lower pulley is slidably arranged in the lower guide rail, and the rotating axes of the upper pulley and the lower pulley are perpendicular to the length direction of the frame.

5. The motorized roller shade mechanism of claim 4, wherein a plurality of sets of the upper sheave blocks and a plurality of sets of the lower sheave blocks are provided at each end of the end side traveler, the plurality of sets of the upper sheave blocks being spaced apart at a top of the end side traveler, the plurality of sets of the lower sheave blocks being spaced apart at a bottom of the end side traveler.

6. The motorized side curtain mechanism of claim 4, wherein the lower guide rail includes a main guide slot and a transition slot, the main guide slot notch being oriented in a width direction of the frame, the lower pulley being slidably disposed in the main guide slot; the transition groove is arranged below the main guide groove, and the notch of the transition groove faces the bottom of the frame.

7. The motorized roller shade mechanism of claim 6, wherein the lower pulley assembly further comprises a transition pulley rotatably coupled to the lower fixture; the transition pulley is slidably arranged in the transition groove, the peripheral side of the transition pulley is abutted against the groove wall of the transition groove, and the rotation axis of the transition pulley is consistent with the height direction of the frame.

8. The electric side curtain mechanism according to claim 6, wherein the lower guide rail comprises a fixed plate, and an extension arm and a transfer arm which are connected with the fixed plate, the fixed plate is arranged on the side beam of the frame, the cross section of the transfer arm is L-shaped, the end part of the transfer arm is vertically connected with the fixed plate, and the transfer groove is formed between the transfer arm and the fixed plate; the extension arm sets up the top of switching arm, the extension arm with the fixed plate is connected perpendicularly, the extension arm with switching arm and constitute between the fixed plate main guide slot.

9. The motorized side curtain mechanism of claim 4, wherein the top rail includes a fixed portion and a pair of bearing portions, the fixed portion having a C-shaped cross section, the fixed portion being disposed on a side of the side rail of the compartment, the fixed portion having a downward opening; the two bearing parts are arranged at the opening of the fixing part and are oppositely arranged on the inner wall of the fixing part, and a space is arranged between the opposite end parts of the two bearing parts; the upper pulley is arranged in the fixing part, the bottom of the upper pulley is abutted to the inner surface of the bearing part, and the upper fixing part is arranged in the interval between the two bearing parts in a penetrating mode.

10. A side curtain van semi-trailer, comprising a frame and a carriage body arranged on the frame, characterized in that the side curtain van semi-trailer further comprises an electric side curtain mechanism as claimed in any one of claims 1 to 9.