CN220220729U - Cover pulling device for telescopic ceiling of open vehicle - Google Patents

Abstract

The utility model discloses a telescopic ceiling cover pulling device of an open vehicle, which comprises: the lifting device comprises upright posts, lifting seats, rotating seats, shifting fork assemblies and tension adjusting assemblies, wherein the upright posts are vertically arranged on two sides of a rail, the rotating seats are arranged on the top ends of the upright posts, the lifting seats are arranged on the rotating seats, the shifting fork assemblies are hinged to the lifting seats, the lifting seats drive the shifting fork assemblies to vertically lift on the upright posts and are used for blocking the shifting posts of the telescopic ceiling so as to open or close the telescopic ceiling. The tension adjusting component is arranged on the cover pulling device to control the cover pulling force of the cover pulling device. So that the telescopic ceiling can be normally opened and closed and the movement of the open vehicle can not be blocked. And simultaneously, the locking piece is used for locking the shifting fork rod. When the cover pulling force of the shifting fork rod exceeds a set value, the locking piece is unlocked, so that the shifting fork rod can deflect to be separated from the telescopic ceiling shifting column, and the shifting fork rod or the telescopic ceiling shifting column is prevented from being damaged.

Description

Cover pulling device for telescopic ceiling of open vehicle

Technical Field

The utility model relates to the technical field of railway bulk cargoes, in particular to a telescopic ceiling cover pulling device of an open wagon.

Background

The open wagon of the freight train is mainly used for transporting bulk cargoes such as coal, ore, mineral building materials and the like. In order to prevent cargo such as coal in the cabin from falling along the line during transportation of the cargo conveyances, tarpaulins or other awning are usually covered on top of the cabin. Is generally completed by manpower, but the labor intensity of workers is high and the working efficiency is low. Thus, the retractable roof capable of being automatically opened is started to be used. The number of the telescopic ceilings is two, and the telescopic ceilings are arranged at the front end and the rear end of the top of the carriage. When in use, the telescopic ceiling moves along with the open vehicle on the rail at a slow speed. The telescopic roofs are blocked by the cover pulling device to move along with the open vehicle, so that the front and rear telescopic roofs are respectively folded towards the middle of the carriage from the front and rear ends of the carriage, and the telescopic roofs are covered; or the front and rear telescopic ceilings are respectively pulled away from the middle of the carriage towards the two ends of the carriage, so that the telescopic ceilings are opened. However, if the cover pulling force of the cover pulling device for blocking the telescopic ceiling is too small, the telescopic ceiling is difficult to pull; when the cover pulling force of the telescopic ceiling is too large, the cover pulling device can prevent the open vehicle from moving or damage the cover pulling device and the telescopic ceiling. Therefore, the cover pulling force of the cover pulling device needs to be regulated and controlled, so that the telescopic ceiling can be normally opened and closed, the movement of the open vehicle can not be blocked, and the cover pulling device and the telescopic ceiling can not be damaged.

Through patent search, the following patents are mainly related to the application:

1. the utility model patent with the application number of '201721071050.4', the application date of '2017.08.25', the publication number of 'CN 207225367U', the publication date of '2018.04.13', the name of 'a folding movable top cover for a railway freight open wagon', and the application number of 'Royal industrial limited' discloses a folding movable top cover for a railway freight open wagon, which comprises a track arranged on the top of the open wagon carriage, a folding cover plate arranged on the track and a driving mechanism arranged on the open wagon carriage, wherein the driving mechanism comprises a belt type driving mechanism and a pneumatic motor for driving the belt type driving mechanism to rotate, one end of the folding cover plate is fixedly connected with the open wagon carriage, the other end of the folding cover plate is connected with a driving belt of the belt type driving mechanism, and the other end of the folding cover plate can move back along the track under the driving of the driving belt, so that the folding cover plate is opened to shield the top opening of the open wagon carriage or the folding cover plate is folded together to expose the top opening of the open wagon carriage. However, unlike the technical solution of the present application, the pneumatic motor 5 for driving the folding movable top cover to open and close is provided on each freight open wagon, and the equipment cost is high.

2. The utility model relates to a Chinese patent with application number of '201710892741.9', application date of '2017.09.27', publication number of 'CN 107628047A', publication date of '2018.01.26', name of 'Zeng Chenghua', and application person of 'Kazakhstan practical company', and discloses a method for opening and closing a folding movable top cover of a railway freight open wagon and an opening and closing mechanism, wherein the opening and closing method is that the folding movable top cover is arranged to be in a two-half structure comprising a first folding movable top cover and a second folding movable top cover; the open wagon is also provided with a belt transmission mechanism, one end of a first folding movable top cover is connected with one side of a transmission belt in the belt transmission mechanism and is provided with an outer convex part I, one end of a second folding movable top cover is connected with the other side of the transmission belt in the belt transmission mechanism and is provided with an outer convex part II, the moving direction of one side of the transmission belt is opposite to the moving direction of the other side of the transmission belt, and a first stop block device and a second stop block device are arranged on the ground; when the open wagon moves, the first folding movable top cover and the second folding movable top cover are opened or closed by contacting the first outer convex part through the first stop block device or contacting the second outer convex part through the second stop block device. Although this patent discloses a stopper device for opening and closing a folding movable top cover, the structure of the stopper device is not disclosed, and the technical problems of tension adjustment and control of the cover pulling force are not further related.

3. The utility model patent of application number is 202122713732.3, application date is 2021.11.08, publication number is CN216443600U, publication date is 2022.05.06, the utility model patent of application number is a folding device of a freight train open carriage pushing type cover curtain, and application number is a device of a Royal industrial limited company, the utility model patent discloses a folding device of a freight train open carriage pushing type cover curtain, which comprises left slide rails and right slide rails symmetrically arranged at the top edges of side walls of two sides of the open carriage and used for sliding at two sides of a front sheet curtain and two sides of a rear sheet curtain, and further comprises front and rear two groups of folding slide rails symmetrically arranged at the outer sides of the front end wall and the outer sides of the rear end wall of the open carriage, wherein each group of folding slide rails consists of left folding slide rails and right folding slide rails which are bilaterally symmetrical; the upper ends of the left rolling sliding rail and the right rolling sliding rail are respectively in arc connection with the left sliding rail and the right sliding rail, and the lower ends of the left rolling sliding rail and the right rolling sliding rail are respectively curled towards the carriage in a spiral line. Although this patent discloses a cover pulling device for opening and closing a folding movable top cover, the structure of the cover pulling device is not disclosed, and the technical problems of tension adjustment and cover pulling force control are not related.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a telescopic ceiling cover pulling device of an open vehicle aiming at the defects in the prior art.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a cover device is dialled to flexible ceiling of uncovered car, the flexible ceiling of uncovered car dials a cover device includes: the lifting seat (130) and the shifting fork assembly (140), the upright (110) is vertically arranged on two sides of a rail, the lifting seat (130) is arranged on the top end of the upright (110), the shifting fork assembly (140) is hinged to the lifting seat (130), the lifting seat (130) drives the shifting fork assembly (140) to vertically lift on the upright (110) and is used for blocking a telescopic ceiling shifting column (201) so as to open or close the telescopic ceiling, and the tension adjusting assembly (150) for adjusting tension of a shifting cover is further arranged. To adjust the tension applied to the shifting fork assembly and to adjust and control the cover pulling force of the shifting fork rod. So that the telescopic ceiling can be normally opened and closed and the movement of the open vehicle can not be blocked.

Further, the tension adjusting assembly (150) includes: a tension adjusting screw (153), a tension adjusting spring seat (154), a tension adjusting sleeve (155), a tension adjusting spring (156), a tension adjusting counterweight (157), a steel wire rope (158), a pulley (159) and a guide post (160); one end of a steel wire rope (158) is connected with the shifting fork assembly (140) through a pulley (159), the other end of the steel wire rope (158) is connected with the tension adjusting counterweight (157), one end of a tension adjusting spring (156) is connected with the tension adjusting counterweight (157), the other end of the tension adjusting spring (156) is connected with the tension adjusting spring seat (154), and the tension adjusting spring seat (154) is lifted along the guide post (160) by rotating the tension adjusting screw (153) so as to adjust the elasticity of the tension adjusting spring (156).

Further, the tension adjusting assembly (150) further includes: the tension adjusting motor (151) and the tension adjusting speed reducer (152), and the tension adjusting motor (151) drives the tension adjusting screw (153) to rotate through the tension adjusting speed reducer (152). So as to improve the adjusting speed and reduce the labor intensity during adjusting.

Further, the tension adjusting decelerator (152) is a worm gear decelerator. The worm gear reducer has the advantages of small volume, large transmission ratio and self-locking.

Further, when the fork assembly (140) does not block the telescopic ceiling poking column (201), the fork assembly (140) is at the initial position, at this time, the elastic forces of the tension adjusting weight (157) and the tension adjusting spring (156) are supported by the top end of the tension adjusting sleeve (155), and the tension adjusting weight (157) and the tension adjusting spring (156) do not generate tension acting on the fork assembly (140). When the locking piece is released, the shifting fork rod is separated from the telescopic ceiling shifting column, the shifting fork rod and the shifting fork assembly recover to the position at the moment, and the tension adjusting counterweight falls to the top end of the tension adjusting sleeve. The elastic force of the tension adjusting counterweight and the tension adjusting spring is supported by the top end of the tension adjusting sleeve, so that the collision force between the tension adjusting counterweight and the lifting seat during resetting of the shifting fork component is reduced, and noise generated by collision is reduced.

Further, when the shifting fork assembly (140) blocks the telescopic ceiling shifting post (201), the telescopic ceiling shifting post (201) enables the shifting fork assembly (140) to generate a shifting fork rod deflection angle (alpha) so that the shifting fork assembly deviates from an initial position distance (H2), the tension adjusting weight (157) is pulled to be lifted through the steel wire rope (158), and tension generated by the tension adjusting weight (157) and the tension adjusting spring (156) acts on the shifting fork assembly (140). For controlling the fork assembly (140) and the fork lever deflection angle (alpha).

Further, the fork assembly (140) includes: shifting fork body (141), shifting fork round pin axle (142), shifting fork pole (143), hasp piece (144), shifting fork pole pivot (145), shifting fork pole reset spring (146), shifting fork pole reset screw (147) and shifting fork pole reset nut (148), utilize shifting fork round pin axle (142) to articulate shifting fork body (141) on elevating seat (130), the middle part of shifting fork pole (143) articulates on shifting fork body (141) through shifting fork pole pivot (145), the lower extreme of shifting fork pole (143) is provided with shifting fork pole gyro wheel (1431), the upper end of shifting fork pole (143) is provided with hasp piece (144) that are used for locking shifting fork pole (143), shifting fork pole reset spring (146) one end is connected with shifting fork pole (143) hypomere, the other end is connected with shifting fork pole reset screw (147), utilize shifting fork pole reset nut (148) to install shifting fork pole reset screw (147) on shifting fork body (141).

Further, the locker (144) includes: the shifting fork lock comprises a shifting fork lock head (1441), a shifting fork lock hook (1442) and a lock hook torsion spring (1443), wherein the shifting fork lock head (1441) is arranged at the upper end of a shifting fork rod (143), the middle part of the shifting fork lock hook (1442) is hinged on a shifting fork body (141), one end of the shifting fork lock hook (1442) is hinged with a hook tip (14421), the other end of the shifting fork lock hook is provided with an unlocking inclined plane (14422), and the lock hook torsion spring (1443) is arranged between the shifting fork lock hook (1442) and the shifting fork body (141) so that the hook tip (14421) hooks the shifting fork lock head (1441); be provided with unblock gyro wheel (131) on elevating socket (130), when shift fork pole deflection angle (alpha) exceeded the settlement angle, unblock inclined plane (14422) will collide unblock gyro wheel (131), unblock gyro wheel (131) extrusion unblock inclined plane (14422) for two opposition gibs (14421) that hook shift lock head (1441) open, and latch fitting (144) loosen, and shift fork pole (143) can unrestricted deflection, and shift fork pole (143) and flexible ceiling plectrum (201) separation. The shifting fork rod is prevented from obstructing the movement of the open vehicle, and the cover shifting device and the telescopic ceiling are prevented from being damaged.

Further, there is a hook tip eccentricity (P) between the point of contact of the hook tip (14421) with the fork lock (1441) and the hinge axis of the hook tip (14421), and the hook tip tension (T) will produce a hook tip deflection moment (M). When the hook tip tension exceeds the preset tension, the hook tip deflection moment overcomes the friction force between the hook tip and the shifting fork tapered end, so that the hook tip is separated from the shifting fork tapered end, and the shifting fork rod can deflect without limitation, so that the shifting fork rod is separated from the telescopic ceiling shifting column. The shifting fork rod is prevented from obstructing the movement of the open vehicle, and the cover shifting device and the telescopic ceiling are prevented from being damaged.

Further, be provided with roating seat (120) between stand (110) and elevating seat (130), elevating seat (130) set up on roating seat (120), roating seat (120) include: the rotary motor (121), the rotary driving gear (122) and the disc gear (123), wherein the rotary motor (121) drives the rotary driving gear (122) to rotate around the disc gear (123). When the cover is required to be pulled, the lifting seat and the shifting fork component are rotated to the working position by the rotating seat; after the cover pulling work is completed, the lifting seat is rotated away from the working position by the rotating seat, so that the influence of the lifting seat and the shifting fork component on the passing of vehicles is avoided.

The beneficial effects of the utility model are as follows: the tension adjusting component is arranged on the cover pulling device to control the cover pulling force of the cover pulling device. So that the telescopic ceiling can be normally opened and closed and the movement of the open vehicle can not be blocked. And simultaneously, the locking piece is used for locking the shifting fork rod. When the cover pulling force of the shifting fork rod exceeds a set value, the locking piece is unlocked, so that the shifting fork rod can deflect to be separated from the telescopic ceiling shifting column, and the shifting fork rod or the telescopic ceiling shifting column is prevented from being damaged.

Drawings

Figure 1 is a schematic perspective view of the cover pulling device when pulling the telescopic roof of the open vehicle,

figure 2 is a schematic perspective view of the cover pulling device,

figure 3 is a schematic diagram of a three-dimensional structure of the cover pulling device after hiding the upright post,

figure 4 is a schematic diagram of the front view of the cover pulling device after hiding the upright post,

FIG. 5 is a schematic perspective view of a lifting seat and a shifting fork,

figure 6 is a schematic diagram of a three-dimensional structure of the shifting fork,

figure 7 is a schematic front view of the fork,

figure 8 is a schematic diagram of a three-dimensional structure of a rear fork of a hidden fork body,

figure 9 is a schematic top view of the rear fork of the hidden fork body,

figure 10 is an enlarged schematic view of part of a in figure 9,

figure 11 is a schematic top view of the latch member,

figure 12 is a schematic view of the fork when the fork is poking the telescopic ceiling,

figure 13 is a schematic view of the fork with the latch released,

figure 14 is a schematic perspective view of a tension adjusting assembly,

figure 15 is a schematic cross-sectional view of a tensioning assembly,

FIG. 16 is a schematic cross-sectional view of the tension adjustment assembly when the fork is poking the retractable roof.

In the figure: 100-shifting cover device, 110-upright post, 120-rotating seat, 121-rotating motor, 122-rotating driving gear, 123-disc gear, 130-lifting seat, 131-unlocking roller, 140-shifting fork component, 141-shifting fork body, 142-shifting fork pin, 143-shifting fork rod, 1431-shifting fork rod roller, 144-locking fastener, 1441-shifting fork lock, 1442-shifting fork lock hook, 14421-hook tip, 14422-unlocking inclined plane, 1443-locking hook torsion spring, 145-shifting fork rod rotating shaft, 146-shifting fork rod return spring, 147-shifting fork rod return screw, 148-shifting fork rod return nut, 150-tension adjusting component, 151-tension adjusting motor, 152-tension adjusting speed reducer, 153-tension adjusting screw, 154-tension adjusting spring seat, 155-tension adjusting sleeve, 156-tension adjusting spring, 157-tension adjusting balance weight, 158-wire rope, pulley, 160-guiding post, H1-balance weight to sleeve top height, H2-shifting fork component offset from initial position distance, alpha-shifting fork rod deflection angle, P-hook tip eccentricity, T-hook tip deflection, f-hook tip deflection direction, N-hook tip deflection torque movement direction, N-deflection torque;

200-open vehicle and 201-telescopic ceiling column.

Detailed Description

The utility model is further described below by means of specific embodiments in connection with the accompanying drawings:

as shown in fig. 1: in order to prevent cargoes such as coal in a carriage from being scattered along a line during transportation of the freight open wagon, a telescopic ceiling capable of being automatically opened is used in the freight open wagon. The number of the telescopic ceilings is two, and the telescopic ceilings are arranged at the front end and the rear end of the top of the carriage. The front and the back telescopic ceilings are connected through a chain or a steel wire rope. When in use, the telescopic ceiling moves along with the open vehicle on the rail at a slow speed. The shifting fork component of the shifting cover device is utilized to block the telescopic ceiling at one end, so that the telescopic ceiling at one end cannot move along with the open vehicle, but slides on the sliding rail of the open vehicle roof, and the telescopic ceiling is opened. The other end of the telescopic ceiling carriage at the other end is driven by a chain or a steel wire rope to be folded towards the middle of the carriage in opposite directions, so that the telescopic ceiling is covered; or the front and rear telescopic ceilings are respectively pulled away from the middle of the carriage towards the two ends of the carriage, so that the telescopic ceilings are opened. If the cover pulling force of the telescopic ceiling blocked by the cover pulling device is too small, the telescopic ceiling is difficult to pull; when the cover pulling force of the telescopic ceiling is too large, the cover pulling device can prevent the open vehicle from moving or damage the cover pulling device and the telescopic ceiling.

As shown in fig. 2, the cover pulling device of the present utility model includes: upright post 110, swivel mount 120, lifting mount 130, shift fork subassembly 140 and tension adjustment subassembly 150, upright post 110 installs perpendicularly in rail both sides, is provided with swivel mount 120 on the upright post 110 top, and swivel mount 120 includes: the rotary motor 121, the rotary driving gear 122 and the disk gear 123, the rotary motor 121 drives the rotary driving gear 122 to rotate around the disk gear 123. The elevating seat 130 is installed on the rotating seat 120. The fork assembly 140 is hinged to the lifting base 130, and the lifting base 130 drives the fork assembly 140 to vertically lift at the top end of the upright post 110, so as to block the telescopic ceiling pulling column 201, so as to open or close the telescopic ceiling. Two cover pulling devices are usually arranged side by side, one of which works as a spare to increase the reliability of the cover pulling device.

As shown in fig. 3 to 4 and 14 to 16, a tension adjusting assembly 150 is further provided in the upright 110, including a tension adjusting motor 151, a tension adjusting decelerator 152, a tension adjusting screw 153, a tension adjusting spring seat 154, a tension adjusting sleeve 155, a tension adjusting spring 156, a tension adjusting weight 157, a wire rope 158, a pulley 159, and a guide post 160; one end of a steel wire rope 158 is connected with the shifting fork assembly 140 through a pulley 159, the other end of the steel wire rope 158 is connected with a tension adjusting counterweight 157, one end of a tension adjusting spring 156 is connected with the tension adjusting counterweight 157, the other end of the tension adjusting spring 156 is connected with a tension adjusting spring seat 154, and the tension adjusting motor 51 drives a tension adjusting screw 153 to rotate through a tension adjusting speed reducer 152, so that the tension adjusting spring seat 154 ascends and descends along a guide column 160 to adjust the elasticity of the tension adjusting spring 156. To adjust the amount of tension applied to fork assembly 140 and to adjust and control the dial force of fork lever 143.

As shown in fig. 5 to 7, the fork assembly 140 includes: the fork body 141, the fork pin 142, the fork rod 143, the locking piece 144, the fork rod rotating shaft 145, the fork rod return spring 146, the fork rod return screw 147 and the fork rod return nut 148 are hinged on the lifting seat 130 by the fork pin 142. The fork assembly 140 is connected to the tension adjusting spring 156 and the tension adjusting weight 157 by a wire rope 158, and a tension for blocking the telescopic ceiling column 201 is formed on the fork assembly 140.

As shown in fig. 8 to 10, the middle part of the fork lever 143 is hinged on the fork body 141 through the fork lever rotation shaft 145, the lower end of the fork lever 143 is provided with the fork lever roller 1431, the upper end of the fork lever 143 is provided with the latch 144 for locking the fork lever 143, one end of the fork lever return spring 146 is connected with the lower section of the fork lever 143, the other end is connected with the fork lever return screw 147, and the fork lever return screw 147 is mounted on the fork body 141 by the fork lever return nut 148.

As shown in fig. 10 to 11, the locker 144 includes: the shifting fork lock head 1441, a shifting fork lock hook 1442 and a lock hook torsion spring 1443, wherein the shifting fork lock head 1441 is arranged at the upper end of the shifting fork rod 143, the middle part of the shifting fork lock hook 1442 is hinged on the shifting fork body 141, one end of the shifting fork lock hook 1442 is hinged with a hook tip 14421, the other end of the shifting fork lock hook 1442 is provided with an unlocking inclined plane 14422, and the lock hook torsion spring 1443 is arranged between the shifting fork lock hook 1442 and the shifting fork body 141, so that the hook tip 14421 hooks the shifting fork lock head 1441; the unlocking roller 131 is arranged on the lifting seat 130, when the deflection angle alpha of the shifting fork rod exceeds a set angle, the unlocking inclined plane 14422 collides with the unlocking roller 131, the unlocking roller 131 extrudes the unlocking inclined plane 14422, so that two opposite hook points 14421 hooking the shifting fork lock head 1441 are opened, the locking piece 144 is loosened, the shifting fork rod 143 can deflect in an unrestricted mode, and the shifting fork rod 143 is separated from the telescopic ceiling shifting column 201. The shift rod 143 is prevented from obstructing the movement of the open vehicle and preventing the cover pulling device and the telescopic roof from being damaged. The fork lever 143 is then rotated in a reverse direction about the fork lever rotation shaft 145 by the fork lever return spring 146. The shift fork lock head 1441 is inserted into the shift fork lock hook 1442 to lock the shift fork rod 143, so that the next cover pulling operation is facilitated.

Meanwhile, a hook tip eccentricity P exists between the contact point of the hook tip 14421 and the shifting fork lock head 1441 and the hinge shaft of the hook tip 14421, and the hook tip tension T produces a hook tip deflection moment M. The hook tip deflection moment M is proportional to the hook tip pulling force T, and overcomes the friction force between the hook tip 14421 and the fork lock 1441 when the hook tip pulling force T exceeds the predetermined pulling force, so that the hook tip 14421 is separated from the fork lock 1441, and the fork rod 143 can deflect without limitation, so that the fork rod 143 is separated from the telescopic ceiling shift column 201. The shift rod 143 is prevented from obstructing the movement of the open vehicle and preventing the cover pulling device and the telescopic roof from being damaged.

As shown in fig. 12, when the telescopic roof prop 201 moves in the movement direction V of the open vehicle, the fork rod 143, which descends along with the lifting base 130, blocks the telescopic roof prop 201 from moving along with the open vehicle 200, so that the telescopic roof slides on the sliding rail on the top of the open vehicle, and the telescopic roof is opened or closed. Because the telescopic roof shift post 201 is propped against the lower end of the shift rod 143, the shift fork assembly 140 will generate an overall deflection about the shift fork pin 142. Such that the connection of fork assembly 140 to wire line 158 creates a fork assembly offset from the initial position by a distance H2. And the tension adjusting weight 157 is made to weight to the sleeve tip height H1 by the wire rope 158. The fork assembly 140 and the fork lever deflection angle α are proportional to the difference between the pushing force of the pinch ceiling fork column 201 on the fork lever 143 and the tension of the tension adjustment assembly 150 on the fork lever 143. The tension of the tension adjusting assembly 150 acting on the fork lever 143 can be adjusted by adjusting the tension adjusting weight 157 and adjusting the elastic force of the tension adjusting spring 156.

As shown in fig. 13, after the retractable roof is fully opened or closed, the retractable roof bollard 201 can no longer slide over the open roof. If the shift rod 143 continues to block the retractable roof shift post 201, it will block movement of the open car or damage the cover shifting device and retractable roof. At this time, the telescopic roof shifting post 201 pushes the lower end of the shifting fork rod 143 along the moving direction V of the open wagon, so that the shifting fork assembly 140 continuously deflects as a whole. When the fork assembly 140 exceeds a predetermined deflection angle, the unlocking slope 14422 on the fork latch hook 1442 will collide with the unlocking roller 131. The unlocking roller 131 presses the unlocking inclined surface 14422, so that two opposite hook tips 14421 hooked on the shift lock 1441 are opened, the locking piece 144 is released, and the shift rod 143 can deflect in the shift rod deflection direction N during unlocking around the shift rod rotating shaft 145, so that unrestricted deflection is generated. The fork lever 143 is separated from the telescopic roof rail 201 and the fork lever 143 will no longer block the telescopic roof rail 201. Thereby preventing the shift rod 143 from obstructing the movement of the open car or preventing the cover pulling device and the telescopic roof from being damaged.

As shown in fig. 14 to 16, when the fork assembly 140 does not block the telescopic ceiling shift column 201, the fork assembly 140 is in the initial position, at which the elastic forces of the tension adjusting weight 157 and the tension adjusting spring 156 are supported by the top end of the tension adjusting sleeve 155; when the fork assembly 140 blocks the telescopic ceiling shift column 201, the telescopic ceiling shift column 201 enables the fork assembly 140 to generate a shift lever deflection angle alpha, so that the fork assembly deviates from an initial position by a distance H2, the tension adjusting weight 157 is pulled by the steel wire rope 158 to raise H1, and meanwhile the tension adjusting spring 156 is stretched, and tension generated by the tension adjusting weight 157 and the tension adjusting spring 156 acts on the fork assembly 140. When the locker 144 is released and the fork rod 143 is separated from the telescopic ceiling fork column 201, the fork rod 143 and the fork assembly 140 are restored to the original positions, and at this time, the tension adjusting weight 157 falls down to the top end of the tension adjusting sleeve 155. The tension adjusting weights 157 and the tension adjusting springs 156 are supported by the top ends of the tension adjusting bushings 155 to reduce the collision force with the elevating seat 130 when the fork assembly 140 is restored, and reduce noise generated by the collision.

The beneficial effects of the utility model are as follows: the tension adjusting component is arranged on the cover pulling device to control the cover pulling force of the cover pulling device. So that the telescopic ceiling can be normally opened and closed and the movement of the open vehicle can not be blocked. And simultaneously, the locking piece is used for locking the shifting fork rod. When the cover pulling force of the shifting fork rod exceeds a set value, the locking piece is unlocked, so that the shifting fork rod can deflect to be separated from the telescopic ceiling shifting column, and the shifting fork rod or the telescopic ceiling shifting column is prevented from being damaged.

The above embodiments are only for illustrating the present utility model, not for limiting the present utility model, and various changes and modifications may be made by one skilled in the relevant art without departing from the spirit and scope of the present utility model, so that all equivalent technical solutions shall fall within the scope of the present utility model, which is defined by the claims.

Claims (10)

1. The utility model provides a cover device is dialled to flexible ceiling of uncovered car, the flexible ceiling of uncovered car dials a cover device includes: the lifting device comprises a stand column (110), lifting seats (130) and a shifting fork assembly (140), wherein the stand column (110) is vertically arranged on two sides of a rail, the lifting seats (130) are arranged at the top ends of the stand column (110), the shifting fork assembly (140) is hinged to the lifting seats (130), and the lifting seats (130) drive the shifting fork assembly (140) to vertically lift on the stand column (110) so as to block a telescopic ceiling shifting column (201) to open or close a telescopic ceiling; the method is characterized in that: a tension adjusting assembly (150) for adjusting the tension of the flip top is also provided.

2. The retractable roof cover pulling device of an open vehicle according to claim 1, wherein: the tension adjustment assembly (150) includes: a tension adjusting screw (153), a tension adjusting spring seat (154), a tension adjusting sleeve (155), a tension adjusting spring (156), a tension adjusting counterweight (157), a steel wire rope (158), a pulley (159) and a guide post (160); one end of a steel wire rope (158) is connected with the shifting fork assembly (140) through a pulley (159), the other end of the steel wire rope (158) is connected with the tension adjusting counterweight (157), one end of a tension adjusting spring (156) is connected with the tension adjusting counterweight (157), the other end of the tension adjusting spring (156) is connected with the tension adjusting spring seat (154), and the tension adjusting spring seat (154) is lifted along the guide post (160) by rotating the tension adjusting screw (153) so as to adjust the elasticity of the tension adjusting spring (156).

3. The retractable roof cover pulling device of an open vehicle according to claim 2, wherein: the tension adjustment assembly (150) further includes: the tension adjusting motor (151) and the tension adjusting speed reducer (152), and the tension adjusting motor (151) drives the tension adjusting screw (153) to rotate through the tension adjusting speed reducer (152).

4. The retractable roof cover pulling device of an open vehicle according to claim 3, wherein: the tension adjusting speed reducer (152) is a worm gear speed reducer.

5. The retractable roof cover pulling device of an open wagon of claim 4, wherein: when the shifting fork assembly (140) does not block the telescopic ceiling shifting column (201), the shifting fork assembly (140) is in the initial position, at the moment, the elastic force of the tension adjusting counterweight (157) and the tension adjusting spring (156) is supported by the top end of the tension adjusting sleeve (155), and the tension of the tension adjusting counterweight (157) and the tension adjusting spring (156) cannot be generated to act on the shifting fork assembly (140).

6. The retractable roof cover pulling device of an open wagon of claim 4, wherein: when the shifting fork assembly (140) blocks the telescopic ceiling shifting column (201), the telescopic ceiling shifting column (201) enables the shifting fork assembly (140) to generate a shifting fork rod deflection angle (alpha) so that the shifting fork assembly deviates from an initial position distance (H2), the tension adjusting weight (157) is pulled to be lifted through the steel wire rope (158), and tension generated by the tension adjusting weight (157) and the tension adjusting spring (156) acts on the shifting fork assembly (140).

7. The retractable roof cover pulling device of an open vehicle according to any one of claims 1 to 6, wherein: the fork assembly (140) includes: shifting fork body (141), shifting fork round pin axle (142), shifting fork pole (143), hasp piece (144), shifting fork pole pivot (145), shifting fork pole reset spring (146), shifting fork pole reset screw (147) and shifting fork pole reset nut (148), utilize shifting fork round pin axle (142) to articulate shifting fork body (141) on elevating seat (130), the middle part of shifting fork pole (143) articulates on shifting fork body (141) through shifting fork pole pivot (145), the lower extreme of shifting fork pole (143) is provided with shifting fork pole gyro wheel (1431), the upper end of shifting fork pole (143) is provided with hasp piece (144) that are used for locking shifting fork pole (143), shifting fork pole reset spring (146) one end is connected with shifting fork pole (143) hypomere, the other end is connected with shifting fork pole reset screw (147), utilize shifting fork pole reset nut (148) to install shifting fork pole reset screw (147) on shifting fork body (141).

8. The retractable roof cover pulling device of an open wagon of claim 7, wherein: the locking piece (144) comprises: the shifting fork lock comprises a shifting fork lock head (1441), a shifting fork lock hook (1442) and a lock hook torsion spring (1443), wherein the shifting fork lock head (1441) is arranged at the upper end of a shifting fork rod (143), the middle part of the shifting fork lock hook (1442) is hinged on a shifting fork body (141), one end of the shifting fork lock hook (1442) is hinged with a hook tip (14421), the other end of the shifting fork lock hook is provided with an unlocking inclined plane (14422), and the lock hook torsion spring (1443) is arranged between the shifting fork lock hook (1442) and the shifting fork body (141) so that the hook tip (14421) hooks the shifting fork lock head (1441); be provided with unblock gyro wheel (131) on elevating socket (130), when shift fork pole deflection angle (alpha) exceeded the settlement angle, unblock inclined plane (14422) will collide unblock gyro wheel (131), unblock gyro wheel (131) extrusion unblock inclined plane (14422) for two opposition gibs (14421) that hook shift lock head (1441) open, and latch fitting (144) loosen, and shift fork pole (143) can unrestricted deflection, and shift fork pole (143) and flexible ceiling plectrum (201) separation.

9. The retractable roof cover pulling device of an open wagon of claim 8, wherein: a hook tip eccentricity (P) exists between the contact point of the hook tip (14421) and the shifting fork lock head (1441) and the hinge shaft of the hook tip (14421), and the hook tip deflection moment (M) is produced by the hook tip pulling force (T).

10. The retractable roof cover pulling device of an open vehicle according to claim 9, wherein: be provided with roating seat (120) between stand (110) and elevating seat (130), elevating seat (130) set up on roating seat (120), roating seat (120) include: the rotary motor (121), the rotary driving gear (122) and the disc gear (123), wherein the rotary motor (121) drives the rotary driving gear (122) to rotate around the disc gear (123).