Sunshade and shunting locomotive

Abstract

The invention belongs to the technical field of vehicle sunshade equipment, and discloses a sunshade which comprises a rolling and unfolding device, a folding mechanism connected with the rolling and unfolding device and sunshade cloth with the two ends connected with a curtain rolling mechanism and a curtain cloth upper guide rod respectively, and the folding mechanism drives the rolling and unfolding device to execute rolling or unfolding action and drives the sunshade cloth to be rolled or unfolded; the rolling and unfolding device comprises a mounting seat, a curtain rolling mechanism of which the two ends are mounted on the mounting seat, a left supporting rod, a right supporting rod, an upper curtain cloth guide rod connected with a lower curtain cloth guide rod through a connecting piece, the lower curtain cloth guide rod connected with the folding mechanism, and bearing seats arranged at the two ends of the lower curtain cloth guide rod in a sleeving manner; one ends of the left supporting rod and the right supporting rod are respectively hinged with the mounting seat, and the other ends are respectively hinged with the bearing seat. The problems that an existing sunshade shakes when the sunshade cloth is unfolded and is uneven after the sunshade cloth is unfolded are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to a sunshade and a shunting locomotive, and belongs to the technical field of vehicle sunshade equipment. BACKGROUND

[0002] The sunshade on the vehicle is used to block the dazzling sunlight, help the driver drive safely, and has a good cooling effect. The traditional sunshade is mostly manually operated, which has the problems of insecurity and tediousness in the operation mode, and the problem of large installation space requirement in the structure.

[0003] The utility model patent application with the publication number CN219217132U discloses a winding and unwinding structure and an electric sunshade. The technical solution of the patent is that the transmission wheel is driven to rotate by the motor, the transmission wheel drives the belt and the threaded column to rotate, the sliding block moves along the sliding plate, the sunshade cloth is fixedly connected above the sliding plate, the automatic unfolding of the sunshade cloth is realized, the driving gear is driven to rotate by the motor, the driving gear drives the driven gear to rotate, the driven gear drives the connecting rod to rotate, and the sunshade cloth is wound on the connecting rod to complete the automatic winding of the sunshade cloth. The patent realizes the automatic unfolding and winding of the sunshade cloth through electric operation, and solves the problems of insecurity and tediousness in the traditional manual operation.

[0004] However, the patent still has the problems of large space occupation, shaking of the sunshade cloth during unfolding, and unevenness after unfolding. SUMMARY

[0005] The present application aims to provide a sunshade and a shunting locomotive, which solve the problems of shaking of the sunshade cloth during unfolding and unevenness after unfolding of the existing sunshade.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present application is:

[0007] A sunshade, comprising a sunshade cloth, a winding and unwinding device connected with the sunshade cloth, and a folding mechanism connected with the winding and unwinding device; the folding mechanism drives the winding and unwinding device to perform winding or unwinding action, and drives the sunshade cloth to wind or unfold; the winding and unwinding device comprises a mounting seat and a roller shutter mechanism installed at both ends of the mounting seat, and further comprises a left support rod, a right support rod, an upper curtain guide rod, a connecting piece, a lower curtain guide rod, and a bearing seat.

[0008] The bearing seats are sleeved on both ends of the lower guide rod of the curtain. One end of the left support rod is hinged to the mounting seat at the left end of the roller blind mechanism, and the other end is hinged to the bearing seat at the left end of the lower guide rod of the curtain. One end of the right support rod is hinged to the mounting seat at the right end of the roller blind mechanism, and the other end is hinged to the bearing seat at the right end of the lower guide rod of the curtain. One end of the sunshade cloth is connected to the roller blind mechanism, and the other end is connected to the upper guide rod of the curtain. The upper guide rod of the curtain is connected to the lower guide rod of the curtain through a connector. The lower guide rod of the curtain is connected to the folding mechanism.

[0009] When unfolding the sunshade, the folding mechanism drives the lower guide rod of the curtain to move forward. Since the left support rod, right support rod, bearing seat, lower guide rod of the curtain, connector, and upper guide rod of the curtain are connected as a whole, the lower guide rod of the curtain is pushed forward, which in turn pushes the sunshade forward and unfolds it. At this time, the roller blind mechanism rotates forward and releases the sunshade while accumulating torque. When the torque value is balanced with the forward thrust of the lower guide rod of the curtain, the sunshade stops at a certain position to complete the final unfolding. When rolling up the sunshade, the folding mechanism drives the lower guide rod of the curtain to move backward. Since the roller blind mechanism has accumulated a certain amount of torque during the unfolding stage of the sunshade, it will rotate in the opposite direction under the action of this torque, thereby driving the sunshade to retract and roll up. When the accumulated torque is released, the sunshade stops at the initial position to complete the final rolling up. The sunshade fabric achieves a smooth rolling and unrolling process thanks to the hinged structure of the left and right support rods and the connection structure between the upper and lower guide rods. This sunshade solves the problems of shaking during roll-up and unrolling and unevenness after roll-up by optimizing the structure of the rolling and unrolling device and its coordination with the folding mechanism. Specifically, it addresses the issues of shaking during roll-up and unevenness after roll-up by optimizing the connection structure of the left and right support rods, bearing seats, lower guide rod, connectors, and upper guide rod.

[0010] Furthermore, in order to cushion the structure when the sunshade fabric is rolled up, anti-collision blocks are connected to both ends of the guide rod on the curtain.

[0011] Furthermore, in order to enhance the smoothness of the sunshade fabric during roll-up and unrolling, a sliding bearing is installed inside the bearing housing, and the bearing housing is sleeved on both ends of the lower guide rod of the curtain fabric through the sliding bearing.

[0012] Furthermore, the folding mechanism includes a push seat connected to the lower guide rod of the curtain and a push-pull device connected to the push seat; the push-pull device is used to push the push seat away from the roller blind mechanism or pull the push seat closer to the roller blind mechanism.

[0013] Furthermore, the push-pull device includes a drive device, a left push rod, and a right push rod; one end of the left push rod is connected to the drive device and the other end is hinged to the thrust seat, one end of the right push rod is connected to the drive device and the other end is hinged to the thrust seat, and the drive device is used to drive the ends of the left push rod and the right push rod connected to the drive device to move closer together or further apart.

[0014] Furthermore, the driving device includes a motor, a lead screw assembly connected to the motor, and a left slider and a right slider connected to the lead screw assembly; the lead screw assembly has two sections of threads with opposite directions of rotation, and the left slider and the right slider are respectively connected to the two sections of threads with opposite directions of rotation on the lead screw assembly; one end of the left push rod is hinged to the left slider, and one end of the right push rod is hinged to the right slider.

[0015] Furthermore, the roller blind mechanism includes a roller, a torsion spring, and a torsion spring pin; one end of the torsion spring pin is connected to a mounting base, and the other end is connected to the torsion spring, which is connected inside the roller; one end of the sunshade cloth is connected to the roller of the roller blind mechanism.

[0016] Based on the same inventive concept, the present invention also provides a shunting locomotive. This shunting locomotive includes a cab, and the aforementioned sunshade is installed on the top of the cab's outer shell. The folding mechanism of the sunshade is fixed to the top of the cab's outer shell. By employing the aforementioned sunshade, this shunting locomotive solves the problems of existing sunshades, such as shaking when the sunshade cloth is unfolded and unevenness after unfolding.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] 1. This invention achieves smooth and vibration-free unfolding of the sunshade cloth through the hinged structure of the left and right support rods and the connection structure between the upper and lower guide rods of the curtain.

[0019] 2. The present invention achieves a smaller footprint through the coordinated design of the folding mechanism and the winding and unfolding device, that is, through the connection structure design of the folding mechanism, the lower guide rod of the curtain, and other components. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main structure of the sunshade awning described in this invention when it is unfolded;

[0021] Figure 2 This is a top view of the sunshade awning as described in this invention when it is unfolded.

[0022] Figure 3 This is a side view of the sunshade awning as described in this invention when it is unfolded.

[0023] Figure 4 This is a front view schematic diagram of the folding mechanism described in this invention when unfolded;

[0024] Figure 5 This is a schematic diagram of the folding mechanism described in this invention when unfolded (AA cross-sectional view).

[0025] Figure 6 This is a front view schematic diagram of the winding and unwinding device of the present invention during unwinding;

[0026] Figure 7 This is a top view of the winding and unwinding device of the present invention during unwinding;

[0027] Figure 8 This is a BB cross-sectional view of the winding and unwinding device of the present invention during unwinding;

[0028] Figure 9 This is a CC cross-sectional view of the winding and unwinding device described in this invention during unwinding.

[0029] In the diagram: 1. Mounting plate; 2. Folding mechanism; 21. Drive unit; 211. Motor; 212. Coupling; 213. Bearing mounting bracket; 214. Positive threaded rod; 215. Negative threaded rod; 216. Universal joint structure; 22. Left slider; 23. Right slider; 24. Left push rod; 25. Right push rod; 26. Thrust seat; 27. Guide rail; 3. Rewinding and unfolding device; 31. Mounting base; 32. Roller blind mechanism; 321. Roller drum; 322. Torsion spring; 323. Torsion spring pin; 324. Torsion spring sleeve; 33. Left support rod; 34. Right support rod; 35. Upper guide rod of the curtain; 36. Connector; 37. Lower guide rod of the curtain; 38. Anti-collision block; 39. Bearing seat; 4. Sunshade cloth. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings.

[0031] Example 1

[0032] See Figures 1 to 9 This embodiment provides a sunshade awning. The sunshade awning includes a mounting plate 1, a folding mechanism 2, a roll-up and unfolding device 3, and a sunshade cloth 4.

[0033] See Figures 1 to 5The folding mechanism 2 includes a push seat 26 connected to the lower guide rod 37 of the curtain and a push-pull device mounted on the mounting plate 1 and connected to the push seat 26. The push-pull device is used to push the push seat 26 away from the mounting plate 1 or pull the push seat 26 closer to the mounting plate 1. The push-pull device includes a drive device 21, a left push rod 24, and a right push rod 25. One end of the left push rod 24 forms a sliding pair with the mounting plate 1 via a left slider 22 and a guide rail 27, and the other end is hinged to the push seat 26. One end of the right push rod 25 forms a sliding pair with the mounting plate 1 via a right slider 23 and a guide rail 27, and the other end is hinged to the push seat 26. The drive device 21 is mounted on the mounting plate 1 and is used to drive the ends of the left push rod 24 and the right push rod 25 that are close to the mounting plate 1 to slide towards each other or slide away from each other.

[0034] The drive unit 21 includes a motor 211, a lead screw assembly connected to the motor 211 via a coupling 212, and a left slider 22 and a right slider 23 connected to the lead screw assembly. The motor 211 is fixed to the mounting plate 1. The lead screw assembly is supported by a bearing mounting bracket 213 fixed to the mounting plate 1. The lead screw assembly has two threads with opposite directions of rotation. The left slider 22 and right slider 23 are respectively connected to the two threads with opposite directions of rotation on the lead screw assembly. The left slider 22 and right slider 23 form sliding pairs with the mounting plate 1. See details below. Figure 4 The lead screw assembly can be composed of a spur lead screw 214 and a reverse lead screw 215 connected by a universal joint structure 216. The left slider 22 is threadedly connected to the reverse lead screw 215, and the right slider 23 is threadedly connected to the spur lead screw 214. The left slider 22 and the right slider 23 are slidably connected to the mounting plate 1 via guide rails 27. See also Figure 1 , Figure 2 and Figure 4 The left push rod 24 is hinged at one end to the left slider 22 via a cylindrical pin, and at the other end to the thrust seat 26 via a cylindrical pin. The right push rod 25 is hinged at one end to the right slider 23 via a cylindrical pin, and at the other end to the thrust seat 26 via a cylindrical pin. The thrust seat 26 is a block structure. See also... Figure 5 The left slider 22 and the right slider 23 are arbitrary block structures. They have the same structure but opposite internal thread directions.

[0035] Through the coordinated design of the folding mechanism 2 and the winding and unfolding device 3, that is, by using a push-pull device to push and pull the push seat 26 away from or closer to the mounting plate 1, the push seat 26 and the left support rod 33, right support rod 34, bearing seat 39, curtain lower guide rod 37, connector 36, and curtain upper guide rod 35 in the winding and unfolding device 3 are folded or unfolded accordingly. Compared with some existing sunshades that seem to have a folding mechanism, the folding effect in this embodiment is better and occupies less space.

[0036] SeeFigures 6 to 9 The winding and unfolding device 3 includes a mounting base 31, a roller blind mechanism 32, a left support rod 33, a right support rod 34, an upper guide rod 35 for the curtain fabric, a connector 36, a lower guide rod 37 for the curtain fabric, and a bearing seat 39 with a sliding bearing installed inside. The mounting base 31 is a plate-like structure that can be fixed to a mounting plate 1 or to a required structure such as a vehicle body. The mounting base 31 is used for mounting the remaining structures of the winding and unfolding device 3, and is fixedly installed at both ends of the roller blind mechanism 32. (See also...) Figure 8 The roller blind mechanism 32 includes a roller 321, a torsion spring 322, and a torsion spring pin 323. One end of the torsion spring pin 323 is connected to the mounting base 31, and the other end is connected to the torsion spring 322. The torsion spring 322 is connected inside the roller 321. See also Figure 1 , Figure 2 , Figure 6 and Figure 7 The lower guide rod 37 of the curtain is fitted at both ends into sliding bearings. One end of the left support rod 33 is hinged to the mounting seat 31 at the left end of the roller blind mechanism 32 via a cylindrical pin, and the other end is hinged to the bearing seat 39 at the left end of the lower guide rod 37 of the curtain via a cylindrical pin. One end of the right support rod 34 is hinged to the mounting seat 31 at the right end of the roller blind mechanism 32 via a cylindrical pin, and the other end is hinged to the bearing seat 39 at the right end of the lower guide rod 37 of the curtain via a cylindrical pin. This configuration supports the lower guide rod 37 of the curtain and enhances the smoothness of the sunshade fabric 4 during rolling and unrolling. One end of the sunshade fabric 4 is adhered to the roller 321, and the other end passes through the upper guide rod 35 of the curtain. See also... Figure 2 , Figure 7 and Figure 9 The upper guide rod 35 of the curtain is connected to the lower guide rod 37 of the curtain through the connector 36. The upper guide rod 35 and the lower guide rod 37 of the curtain are parallel. The connector 36 is a waist-shaped sheet structure with holes at both ends for the upper guide rod 35 and the lower guide rod 37 of the curtain to pass through. The lower guide rod 37 of the curtain passes through the thrust seat 26, which is located in the middle of the lower guide rod 37 of the curtain.

[0037] During the winding process, when the thrust seat 26 moves backward, the ends of the left support rod 33 and the right support rod 34 that are hinged to the bearing seat 39 rotate backward respectively (at this time, the left support rod 33 and the right support rod 34 play a supporting and guiding role and ensure smooth movement). At the same time, the bearing seats 39, which have sliding bearings installed inside both ends of the lower guide rod 37, begin to slide and approach on the lower guide rod 37 (at this time, the sliding bearings and bearing seats 39 play a supporting role and ensure smooth winding). This drives the lower guide rod 37 and the upper guide rod 35 connected to the lower guide rod 37 to move backward together (at this time, the lower guide rod 37 and the upper guide rod 35 play a role in providing flat support for the sunshade cloth 4 and ensuring smooth winding). This causes one end of the sunshade cloth 4 to move backward and begin winding. Conversely, during the unfolding process, when the thrust seat 26 moves forward, the left support rod 33 and right support rod 34 provide support and guidance to ensure smooth movement; the sliding bearing and bearing seat 39 provide support to ensure smooth unfolding; and the lower guide rod 37 and upper guide rod 35 provide flat support for the sunshade cloth 4 and ensure smooth unfolding. Therefore, the sunshade cloth 4 can unfold smoothly and completely. Compared to existing sunshades, such as those in patent CN219217132 where the curtain is directly rolled around a metal connecting rod, the sunshade in this embodiment rolls up or unfolds smoothly, avoiding the problems of shaking and unevenness of the sunshade cloth 4.

[0038] See Figure 1 , Figure 2 , Figure 6 and Figure 7 The rewinding and unwinding device 3 also includes anti-collision blocks 38. The anti-collision blocks 38 are bolted to both ends of the guide rod 35 on the curtain, and play a buffering role when the sunshade is rewound; the anti-collision blocks 38 have a cylindrical structure.

[0039] See Figure 8 To ensure stable rotation of the torsion spring 322, reduce friction, and protect the structure, the roller shutter mechanism 32 also includes a torsion spring sleeve 324 fixed to the end of the roller drum 321. One end of the torsion spring pin 323 is inserted into the mounting base 31, and the other end of the torsion spring pin 323 passes through the torsion spring sleeve 324 and extends into the torsion spring 322 and is fixed to the torsion spring 322. The other end of the torsion spring pin 323 extends all the way to the end of the torsion spring 322. One end of the torsion spring 322 is fixed to the torsion spring sleeve 324 by a threaded connection, and the torsion spring sleeve 324 is fixed to the end of the roller drum 321 by bolts.

[0040] Mounting plate 1 is used to install the remaining internal components of the sunshade. When installing the entire sunshade, simply install mounting plate 1, or mounting plate 1 and mounting base 31 together, onto the required fixing surface. This makes installation simple, efficient, and easy to remove.

[0041] The operating principle of the sunshade in this embodiment is as follows:

[0042] When the awning is opened, the drive unit 21 operates, i.e., the motor 211 rotates forward and drives the spur screw 214 to rotate through the coupling 212. At the same time, the spur screw 214 drives the anti-spur screw 215 to rotate through the universal joint structure 216. Since the right slider 23 is engaged with the spur screw 214 and the left slider 22 is engaged with the anti-spur screw 215, the left slider 22 and the right slider 23 slide towards each other. Since the left push rod 24 and the right push rod 25 are hinged to the left slider 22 and the right slider 23 respectively, when the ends of the left push rod 24 and the right push rod 25 approach the mounting plate 1, the ends of the left push rod 24 and the right push rod 25 away from the mounting plate 1 push the thrust seat 26 forward. Since the thrust seat 26, the curtain lower guide rod 37, and the connecting rod are connected, the awning awning 26 is engaged with the right slider 214 and the right slider 215, and the connecting rod 215 is engaged with the right slider 214 and the right slider 215, and the connecting rod 215 is engaged with the right slider 214 and the right slider 215, the left push rod 24 and the right push rod 25 away from the mounting plate 1 push the thrust seat 26 forward. Since the thrust seat 26, the curtain lower guide rod 37, and the connecting rod 214 and the right push rod 25 are engaged with the right slider 214 and the right push rod 215, the left push rod 24 and the right push rod 25 away from the mounting plate 1 push the thrust seat 26 forward. The connector 36, left support rod 33, right support rod 34, and upper guide rod 35 of the curtain are connected as a whole structure. Therefore, when the push seat 26 is pushed forward, it drives the sunshade cloth 4 to push forward and unfold. At the same time, since the upper end of the sunshade cloth 4 is attached to the roller 321, the roller 321 can be rotated forward when the sunshade cloth 4 is pushed forward. Since the roller 321 is connected to the torsion spring 322 through the torsion spring sleeve 324, when the roller 321 rotates forward, it will drive the torsion spring 322 to rotate, thereby generating a certain torque in the torsion spring 322. When this torque value is balanced with the forward push of the push seat 26, the sunshade cloth 4 stops at a certain position to complete the final unfolding. At the same time, this torque value is also the initial force of the entire winding and unfolding device 3 when the sunshade cloth 4 is rolled up.

[0043] When the sunshade is retracted, the drive unit 21 operates, that is, the motor 211 reverses and drives the positive threaded screw 214, the universal joint structure 216, and the negative threaded screw 215 to rotate in the opposite direction through the coupling 212. The working principle is the same as when the sunshade is opened, only the direction is reversed. At this time, the left slider 22 and the right slider 23 slide in opposite directions, so that the left push rod 24 and the right push rod 25 move away from the end near the mounting plate 1. At the same time, the end of the left push rod 24 and the right push rod 25 away from the mounting plate 1 pushes the thrust seat 26 backward. Pull back; at this time, the sunshade cloth 4 will only move backward and retract with the push seat 26, but will not be rolled up; the rolling force of the sunshade cloth 4 comes from the torsion spring 322 of the roller blind mechanism 32, that is, the torsion spring 322 accumulates a certain torque when the sunshade is opened. Under the action of this torque, the torsion spring 322 will rotate in the opposite direction, and at the same time drive the torsion spring sleeve 324 and the roller 321 to rotate in the opposite direction, thereby rolling up the sunshade cloth 4. When the accumulated torque is released, the sunshade cloth 4 stops at the initial position to complete the final roll-up.

[0044] Example 2

[0045] The difference between this embodiment and Embodiment 1 is that this embodiment provides a shunting locomotive. This shunting locomotive includes a cab, and a sunshade as described in Embodiment 1 is installed on the top of the cab shell. The sunshade is fixed to the top of the cab shell via a mounting plate 1. This shunting locomotive solves the problems of existing sunshades, such as large space occupation, shaking when the sunshade cloth 4 is unfolded, and unevenness after unfolding.

[0046] The embodiments of the present invention have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention is not limited to the specific embodiments described above; these embodiments are merely illustrative and not limiting. Those skilled in the art, under the guidance of the present invention, can make many modifications without departing from the spirit and scope of the claims, and all such modifications fall within the scope of protection of the present invention.

Claims

1. A sunshade, comprising a sunshade fabric (4), a roll-up / unroll-up device (3) connected to the sunshade fabric (4), and a folding mechanism (2) connected to the roll-up / unroll-up device (3); the folding mechanism (2) drives the roll-up / unroll-up device (3) to perform a roll-up or unroll-up action, thereby causing the sunshade fabric (4) to roll up or unroll; the roll-up / unroll-up device (3) comprises a mounting base (31) and a roller blind mechanism (32) with both ends mounted on the mounting base (31), characterized in that, The winding and unfolding device (3) also includes a left support rod (33), a right support rod (34), an upper guide rod (35) for the curtain, a connector (36), a lower guide rod (37) for the curtain, and a bearing seat (39). The bearing seat (39) is sleeved on both ends of the lower guide rod (37) of the curtain. One end of the left support rod (33) is hinged to the mounting seat (31) at the left end of the roller blind mechanism (32), and the other end is hinged to the bearing seat (39) at the left end of the lower guide rod (37) of the curtain. One end of the right support rod (34) is hinged to the mounting seat (31) at the right end of the roller blind mechanism (32), and the other end is hinged to the bearing seat (39) at the right end of the lower guide rod (37) of the curtain. One end of the sunshade cloth (4) is connected to the roller blind mechanism (32), and the other end is connected to the upper guide rod (35) of the curtain. The upper guide rod (35) of the curtain is connected to the lower guide rod (37) of the curtain through the connector (36). The lower guide rod (37) of the curtain is connected to the folding mechanism (2).

2. The sunshade awning according to claim 1, characterized in that, The guide rod (35) on the curtain is connected to anti-collision blocks (38) at both ends.

3. The sunshade awning according to claim 1, characterized in that, A sliding bearing is installed inside the bearing housing (39), and the bearing housing (39) is sleeved on both ends of the lower guide rod (37) of the curtain through the sliding bearing.

4. The sunshade according to any one of claims 1 to 3, characterized in that, The folding mechanism (2) includes a push seat (26) connected to the lower guide rod (37) of the curtain and a push-pull device connected to the push seat (26); the push-pull device is used to push the push seat (26) away from the roller blind mechanism (32) or pull the push seat (26) closer to the roller blind mechanism (32).

5. The sunshade awning according to claim 4, characterized in that, The push-pull device includes a drive device (21), a left push rod (24), and a right push rod (25); one end of the left push rod (24) is connected to the drive device (21), and the other end is hinged to the thrust seat (26); one end of the right push rod (25) is connected to the drive device (21), and the other end is hinged to the thrust seat (26); the drive device (21) is used to drive the ends of the left push rod (24) and the right push rod (25) connected to the drive device (21) to move closer together or further apart.

6. The sunshade awning according to claim 5, characterized in that, The drive device (21) includes a motor (211), a lead screw assembly connected to the motor (211), a left slider (22) and a right slider (23) connected to the lead screw assembly; the lead screw assembly has two sections of threads with opposite directions of rotation, and the left slider (22) and the right slider (23) are respectively connected to the two sections of threads with opposite directions of rotation on the lead screw assembly; one end of the left push rod (24) is hinged to the left slider (22), and one end of the right push rod (25) is hinged to the right slider (23).

7. A shunting locomotive, comprising a driver's cab, characterized in that, The top of the cab shell is equipped with a sunshade as described in any one of claims 1-6, and the folding mechanism (2) of the sunshade is fixed to the top of the cab shell.

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