Deformable expansion mechanism and motor home

Abstract

The invention relates to the technical field of motor homes, in particular to a deformable expansion mechanism and a motor home, the deformable expansion mechanism comprises a mounting plate, a winding shaft and tarpaulin which are arranged on a carriage, and further comprises a supporting screw rod, a connecting rod and a connecting rod, the supporting screw rod is arranged on the carriage, and the tarpaulin is supported through the supporting screw rod in the process of winding and unfolding the tarpaulin; when the deformable expansion mechanism and the motor home are used, different from the prior art, an operator can completely unfold the tarpaulin at a time through the arrangement of the supporting lead screw and the unfolding assembly, multiple times of operation are not needed, the tarpaulin can be greatly conveniently unfolded and rolled in rainy days, and the practicability is high. Meanwhile, due to the arrangement of the reinforcing assemblies, the tarpaulin is always connected with the carriage when being unfolded, so that damage to the tarpaulin caused by fierce wind when the tarpaulin is rolled or unfolded is avoided, and the extending length of the supporting lead screws can be adjusted according to the unfolding state of the tarpaulin so as to adapt to various different unfolding states of the tarpaulin.

Description

Technical Field

[0001] The present invention relates to the technical field of recreational vehicles, and in particular to a deformable expansion mechanism and a recreational vehicle. Background Art

[0002] A motorhome combines the functions of both a house and a car, but its attribute is still a car. It is a movable vehicle with basic facilities necessary for home. Usually, in order to facilitate driving, the size of a motorhome should not be too large. In order to facilitate the owner to rest outside the car when parking, an awning is usually installed on the side of the motorhome. The existing motorhome awning is retracted and extended in multiple stages. After the awning is extended, it needs to be manually fixed and manually folded up. Moreover, since there is no support during the folding and extending process, if strong winds are encountered during the folding and extending process, the awning is easily damaged. For this reason, we propose a deformable expansion mechanism and a motorhome.

[0003] One of the technical problems to be solved by this application is that the existing RV awnings are retracted and extended in multiple stages. After the awning is extended, it needs to be manually fixed and then manually folded up. Moreover, since there is no support during the folding and extending process, if strong winds occur during the folding and extending process, the awning is easily damaged.

[0004] In order to solve the above technical problems, an embodiment of the present application provides a deformable expansion mechanism and an RV, including a front and a compartment, and is characterized in that it also includes: a deformable expansion mechanism, which automatically supports and fixes the awning during the process of unfolding and retracting the RV awning.

[0005] In some embodiments, it includes a mounting plate, a winding shaft and a tarpaulin arranged on the vehicle body, and also includes: a support screw rod, which is arranged on the vehicle body and supports the tarpaulin during the process of winding and unfolding the tarpaulin; an unfolding component, which is arranged on the vehicle body and unfolds and reels the tarpaulin arranged on the vehicle body through the unfolding component; a reinforcement component, which is arranged on the vehicle body and controls the support screw rod to support the tarpaulin when winding and unfolding the tarpaulin, and synchronously adjusts the extension length of the support screw rod according to the unfolding state of the tarpaulin.

[0006] In some embodiments, the unfolding assembly includes an extension member disposed on a mounting plate, through which the unfolding and reeling of the tarpaulin are controlled. The extension member is provided with a driving member, through which power is provided for the operation of the extension member.

[0007] In some embodiments, the extension member includes a plurality of drive plates arranged on a mounting plate, a rotating shaft rotatably arranged on the drive plate, one end of the rotating shaft passes through the drive plate, an expansion plate 1 is arranged on the rotating shaft, an expansion plate 2 is rotatably arranged on the expansion plate 1, a rotating shaft is rotatably arranged on the expansion plate 2, a stretching plate is arranged on the rotating shaft, the stretching plate is connected to one side of the tarpaulin, and the stretching plate is an L-shaped plate.

[0008] In some embodiments, the driving member includes a driving worm gear arranged on a rotating shaft, a connecting plate is provided on the driving plate, a driving rod is rotatably provided on the connecting plate, two driving worms are provided on the driving rod for use with the driving worm gear, and the thread directions of the two driving worms are opposite, a transmission rod is rotatably provided on the mounting plate, the transmission rod is connected to the winding shaft, a driving pulley is provided on both the transmission rod and the driving rod, a driving belt is provided on the driving pulley, a driving motor is provided on the carriage, and the output end of the driving motor is connected to the transmission rod.

[0009] In some embodiments, the reinforcement assembly includes a support member arranged on the vehicle body, which supports and unfolds the tarpaulin. A power member is provided on the support member, which synchronously adjusts the extension length of the support screw rod according to the unfolding state of the tarpaulin. A control member is provided on the power member, which locks and fixes the support screw rod.

[0010] In some embodiments, the support member includes a support plate 1 arranged on the carriage, a support shaft 1 is rotatably arranged on the support plate 1, a rotating block 1 is arranged on the support shaft 1, a storage tube is arranged on the rotating block 1, and the storage tube is slidably connected to the support screw, a support plate 2 is arranged on the stretching plate, a support shaft 2 is rotatably arranged on the support plate 2, a rotating block 2 is arranged on the support shaft 2, and the rotating block 2 is connected to the support screw.

[0011] In some embodiments, the power component includes a driving tube rotatably arranged on the storage tube, the driving tube is threadedly connected to the support screw, the storage tube is provided with a power warehouse, the power warehouse is rotatably connected to the driving tube, the driving tube is provided with a driving gear, a driving shaft is rotatably arranged in the power warehouse, the driving shaft is provided with a connecting gear used in conjunction with the driving gear, a winding wheel is provided, a limiting ring is provided on the stretching plate, a traction rope is wound around the winding wheel, the traction rope passes through the power warehouse and the limiting ring and is movably connected to the power warehouse and the limiting ring, the traction rope is connected to the mounting plate, the traction rope is a nylon rope, an extrusion block is provided on the power warehouse, the traction rope passes through the extrusion block and is movably connected to the extrusion block, a connecting shaft is rotatably provided on the power warehouse, the connecting shaft passes through the power warehouse and is connected to the driving shaft, a clockwork box is provided on the outside of the power warehouse, the clockwork box is rotatably connected to the connecting shaft, a clockwork spring is provided in the clockwork box, and one end of the clockwork spring is connected to the connecting shaft.

[0012] In some embodiments, the control component includes a limiting gear arranged on the drive shaft, a sliding groove is provided on the power warehouse, a sliding rod is slidably provided in the sliding groove, and one end of the sliding rod located in the power warehouse is provided with a locking tooth for cooperating with the limiting gear, a positioning plate is provided on the power warehouse, a telescopic rod is provided on the positioning plate, a push plate is provided on the telescopic rod, an extrusion spring is sleeved on the telescopic rod, a fixed block 1 is provided on the end of the sliding rod away from the locking tooth, a plurality of mounting grooves are provided on the fixed block 1, a locking spring is provided in the mounting groove, a locking rod is slidably provided in the mounting groove, a fixed block 2 is provided on both sides of the sliding groove on the power warehouse, a locking groove for cooperating with the locking rod is provided on the fixed block 2, and a pushing rod is slidably provided in the lock groove.

[0013] In some embodiments, the traction rope is a polypropylene rope.

[0014] The present invention has at least the following beneficial effects: this deformable expansion mechanism and RV, when in use, are different from the existing technology. The setting of the support screw and the unfolding component enables the operator to fully open the tarpaulin at one time without multiple operations, which greatly facilitates the unfolding and reeling of the tarpaulin on rainy days. At the same time, the setting of the reinforcement component ensures that the tarpaulin is always connected to the car body when unfolded, thereby avoiding strong winds when reeling or unfolding the tarpaulin, which may cause damage to the tarpaulin. The support screw can adjust the extension length according to the unfolded state of the tarpaulin to adapt to a variety of different unfolding states of the tarpaulin. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Another structural diagram; Figure 3 For the present invention Figure 1 Schematic diagram of the structure without the carriage and the front of the train; Figure 4 For the present invention Figure 3 Schematic diagram of the structure with the tarpaulin and drive motor removed; Figure 5 For the present invention Figure 4 Schematic diagram of the enlarged structure of area A in the middle; Figure 6 For the present invention Figure 4 Another structural diagram; Figure 7 This is a schematic diagram of the reinforcement assembly structure of the present invention; Figure 8 For the present invention Figure 7 Schematic diagram of explosion structure; Figure 9 For the present invention Figure 8 Schematic diagram of the structure without support parts and power compartment; Figure 10 For the present invention Figure 9 Schematic diagram of the structure without the barrel; Figure 11 For the present invention Figure 10 Schematic diagram of the structure without control parts; Figure 12 This is a schematic diagram of the control component structure of the present invention; Figure 13 This is a schematic diagram of the exploded structure of the control component of the present invention; Figure 14 This is a structural diagram of embodiment 2 of the present invention.

[0016] In the figure: 1. Mounting plate; 2. Reeling shaft; 3. Tarpaulin; 4. Support screw; 5. Unfolding assembly; 6. Extension member; 61. Drive plate; 62. Rotating shaft; 63. Unfolding plate 1; 64. Unfolding plate 2; 65. Rotating shaft; 66. Stretching plate; 7. Drive member; 71. Drive worm gear; 72. Connecting plate; 73. Drive rod; 74. Drive worm; 75. Transmission rod; 76. Drive pulley; 77. Drive belt; 78. Drive motor; 8. Reinforcement assembly; 9. Support member; 91. Support plate 1; 92. Support shaft 1; 93. Rotating block 1; 94. Storage tube; 95. Support plate 2; 96. Support shaft 2; 97. Rotating block 2; 10. Power member; 101. Drive tube; 102 , power compartment; 103, driving gear; 104, driving shaft; 105, connecting gear; 106, winding wheel; 107, limiting ring; 108, traction rope; 109, extrusion block; 1010, connecting shaft; 1011, mainspring box; 1012, mainspring spring; 11, control part; 111, limiting gear; 112, sliding groove; 113, sliding rod; 114, latching tooth; 115, positioning plate; 116, telescopic rod; 117, pushing plate; 118, extrusion spring; 119, fixing block 1; 1110, mounting groove; 1111, latching spring; 1112, locking rod; 1113, fixing block 2; 1114, locking groove; 1115, ejection rod; 12, locomotive head; 13, carriage. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0018] See also Figure 1-13 , the present invention provides a technical solution: A deformable expansion mechanism and a motorhome, comprising a front 12 and a carriage 13, further comprising: a deformable expansion mechanism, through which the awning is automatically supported and fixed during the process of unfolding and reeling in the motorhome awning; the deformable expansion mechanism comprises a mounting plate 1, a reeling shaft 2 and a tarpaulin 3 arranged on the carriage 13; and further comprising a support screw 4, which is arranged on the carriage 13 and supports the tarpaulin 3 during the process of reeling in and unfolding the tarpaulin 3.

[0019] The unfolding assembly 5 is arranged on the carriage 13 , and the tarpaulin 3 arranged on the carriage 13 is unfolded and rolled up by the unfolding assembly 5 .

[0020] The arrangement of the unfolding assembly 5 and the supporting screw rod 4 enables the operator to fully unfold the tarpaulin 3 at one time without multiple operations, which greatly facilitates the vehicle owner to unfold and retract the tarpaulin 3 on rainy days.

[0021] The reinforcement component 8 is arranged on the carriage 13. The reinforcement component 8 controls the support screw 4 to support the tarpaulin 3 when the tarpaulin 3 is rolled up and unfolded, and simultaneously adjusts the extension length of the support screw 4 according to the unfolding state of the tarpaulin 3.

[0022] The setting of the reinforcement component 8 ensures that the tarpaulin 3 is always connected to the car body 13 when unfolded, thereby avoiding the tarpaulin 3 from being damaged by bad weather such as strong winds when rolling up or unfolding the tarpaulin 3, and the support screw rod 4 can adjust the extension length according to the unfolded state of the tarpaulin 3 to adapt to a variety of different unfolding states of the tarpaulin 3. At the same time, the support screw rod 4 can be locked after the tarpaulin 3 is unfolded to avoid the movement of the support screw rod 4 due to the influence of the external environment.

[0023] The unfolding assembly 5 includes an extension member 6 provided on the mounting plate 1 , through which the unfolding and reeling of the tarpaulin 3 are controlled. A driving member 7 is provided on the extension member 6 , through which the driving member 7 provides power for the operation of the extension member 6 .

[0024] The extension member 6 includes a plurality of drive plates 61 arranged on the mounting plate 1, and a rotating shaft 62 is rotatably provided on the drive plate 61, and one end of the rotating shaft 62 passes through the drive plate 61, and an unfolding plate 1 63 is provided on the rotating shaft 62, and an unfolding plate 2 64 is rotatably provided on the unfolding plate 1 63, and a rotating shaft 65 is rotatably provided on the unfolding plate 2 64, and a stretching plate 66 is provided on the rotating shaft 65, and the stretching plate 66 is connected to one side of the tarpaulin 3, and the stretching plate 66 is an L-shaped plate.

[0025] The advantage of the extension member 6 is that the tarpaulin 3 can be quickly unfolded and rolled up.

[0026] The driving member 7 includes a driving worm gear 71 arranged on the rotating shaft 62, a connecting plate 72 is provided on the driving plate 61, a driving rod 73 is rotatably provided on the connecting plate 72, and two driving worms 74 are provided on the driving rod 73 for use with the driving worm gear 71, and the thread directions of the two driving worms 74 are opposite, a transmission rod 75 is rotatably provided on the mounting plate 1, and the transmission rod 75 is connected to the winding shaft 2, and a driving pulley 76 is provided on the transmission rod 75 and the driving rod 73, and a driving belt 77 is provided on the driving pulley 76, and a driving motor 78 is provided on the carriage 13, and the output end of the driving motor 78 is connected to the transmission rod 75.

[0027] When the tarpaulin 3 needs to be opened, the drive motor 78 is started to drive the transmission rod 75 to rotate. The rotation of the transmission rod 75 drives the winding shaft 2 to rotate, and the tarpaulin 3 wrapped around the winding shaft 2 is released. While the transmission rod 75 rotates, it drives the driving rod 73 to rotate through the driving pulley 76 and the driving belt 77. While the driving rod 73 rotates, it drives the driving worm 74 arranged thereon to rotate. Because the thread directions of the two driving worms 74 are opposite, when the driving worm 74 rotates, it will drive the two driving worm wheels 71 to rotate in different directions, further drive the rotating shaft 62 connected to the driving worm wheel 71 to rotate in different directions, synchronously drive the unfolding plate 1 63 to rotate, further drive the unfolding plate 2 64 connected to the unfolding plate 1 63 to rotate, and the rotation of the unfolding plate 2 64 drives the stretching plate 66 to move, thereby synchronously driving the tarpaulin 3 to move.

[0028] The reinforcement assembly 8 includes a support member 9 arranged on the carriage 13, which supports and unfolds the tarpaulin 3. A power member 10 is provided on the support member 9, which synchronously adjusts the extension length of the support screw rod 4 according to the unfolding state of the tarpaulin 3. A control member 11 is provided on the power member 10, which locks and fixes the support screw rod 4.

[0029] The support member 9 includes a support plate 91 arranged on the carriage 13, a support shaft 92 is rotatably arranged on the support plate 91, a rotating block 93 is arranged on the support shaft 92, a storage tube 94 is arranged on the rotating block 93, and the storage tube 94 is slidably connected to the support screw 4, a support plate 95 is arranged on the stretching plate 66, a support shaft 96 is rotatably arranged on the support plate 95, a rotating block 97 is arranged on the support shaft 96, and the rotating block 97 is connected to the support screw 4.

[0030] The advantage of the support member 9 is that it continuously supports the stretching plate 66 during the process of rolling and unfolding the tarpaulin 3, which can effectively prevent the tarpaulin 3 from being damaged by strong winds during rolling and unfolding, thereby greatly improving the safety of rolling and unfolding the tarpaulin 3.

[0031] The power member 10 includes a drive tube 101 rotatably arranged on the storage tube 94, the drive tube 101 is threadedly connected to the support screw 4, a power bin 102 is provided on the storage tube 94, the power bin 102 is rotatably connected to the drive tube 101, a drive gear 103 is provided on the drive tube 101, a drive shaft 104 is rotatably arranged in the power bin 102, a linkage gear 105 used in conjunction with the drive gear 103 is provided on the drive shaft 104, a winding wheel 106 is provided on the drive shaft 104, a limiting ring 107 is provided on the stretching plate 66, a traction rope 108 is wound around the winding wheel 106, and the traction rope 108 passes through the power bin 102 and the limiting ring 1 07 and is movably connected to the power bin 102 and the limiting ring 107, the traction rope 108 is connected to the mounting plate 1, the traction rope 108 is a nylon rope, an extrusion block 109 is provided on the power bin 102, the traction rope 108 passes through the extrusion block 109 and is movably connected to the extrusion block 109, a linkage shaft 1010 is rotatably provided on the power bin 102, the linkage shaft 1010 passes through the power bin 102 and is connected to the drive shaft 104, a clockwork box 1011 is provided on the outside of the power bin 102, the clockwork box 1011 is rotatably connected to the linkage shaft 1010, a clockwork spring 1012 is provided in the clockwork box 1011, and one end of the clockwork spring 1012 is connected to the linkage shaft 1010.

[0032] The advantage of setting up the power part 10 is that the extension length of the support screw rod 4 can be adjusted according to the unfolding state of the tarpaulin 3 to adapt to various unfolding states of the tarpaulin 3. At the same time, the support screw rod 4 itself has a self-locking function, which can further improve the stability of the tarpaulin 3 when unfolded.

[0033] As the stretching plate 66 moves, the traction rope 108 is stretched, and the winding wheel 106 is rotated synchronously. As the winding wheel 106 rotates, the driving shaft 104 is rotated. As the driving shaft 104 rotates, the interlocking gear 105 provided on the driving shaft 104 is rotated. As the interlocking gear 105 rotates, the driving gear 103 engaged with the interlocking gear 103 is rotated. As the driving gear 103 rotates, the driving tube 101 is rotated. The driving tube 101 rotates, and drives the support screw rod 4 threadedly connected thereto to move, thereby adjusting the extension of the support screw rod 4 to follow the unfolding state of the tarpaulin 3. The effect of length effectively improves the stability and safety of the tarpaulin 3 when it is unfolded. The setting of the limit ring 107 can prevent the traction rope 108 from deviating, and the advantage of the setting of the extrusion block 109 is that on rainy days, the moisture on the traction rope 108 can be discharged when the winding wheel 106 retracts the traction rope 108, thereby extending the service life of the traction rope 108. When the tarpaulin 3 needs to be retracted, the clockwork spring 1012 releases kinetic energy, pushing the drive tube 101 to rotate in the opposite direction, re-integrating the support screw 4 into the storage tube 94, and re-winding the traction rope 108 onto the winding wheel 106.

[0034] The control member 11 includes a limit gear 111 provided on the drive shaft 104, a sliding groove 112 is provided on the power compartment 102, a sliding rod 113 is slidably provided in the sliding groove 112, and one end of the sliding rod 113 located in the power compartment 102 is provided with a latch 114 used in conjunction with the limit gear 111, a positioning plate 115 is provided on the power compartment 102, a telescopic rod 116 is provided on the positioning plate 115, a push plate 117 is provided on the telescopic rod 116, and an extrusion spring 11 is sleeved on the telescopic rod 116. 8. A fixing block 119 is provided on the end of the sliding rod 113 away from the locking tooth 114, and a plurality of mounting grooves 1110 are provided on the fixing block 119. A locking spring 1111 is provided in the mounting groove 1110, and a locking rod 1112 is slidably provided in the mounting groove 1110. A fixing block 2 1113 is provided on both sides of the sliding groove 112 on the power compartment 102, and a locking groove 1114 used in conjunction with the locking rod 1112 is provided on the fixing block 2 1113, and a pushing rod 1115 is slidably provided in the locking groove 1114.

[0035] The benefit of the control member 11 is that the support screw rod 4 is locked after the tarpaulin 3 is unfolded, so as to avoid the extension of the traction rope 108 due to the influence of the external environment, which further causes the support screw rod 4 to move.

[0036] When the tarpaulin 3 is unfolded, the pushing rod 1115 is squeezed and the locking rod 1112 is simultaneously pushed out of the locking groove 1114 by the locking spring 1111, and the locking tooth 114 is disengaged from the limiting gear 111, thereby releasing the lock of the limiting gear 111.

[0037] When in use, if it is necessary to open the tarpaulin 3, first start the drive motor 78 to drive the transmission rod 75 to rotate. The rotation of the transmission rod 75 drives the winding shaft 2 to rotate, and the tarpaulin 3 wrapped around the winding shaft 2 is released. When the transmission rod 75 rotates, it drives the driving rod 73 to rotate through the driving pulley 76 and the driving belt 77. When the driving rod 73 rotates, it drives the driving worm 74 set thereon to rotate. Because the thread directions of the two driving worms 74 are opposite, when the driving worm 74 rotates, it will drive the two driving worm wheels 71 to rotate in different directions, further drive the rotating shaft 62 connected to the driving worm wheel 71 to rotate in different directions, synchronously drive the unfolding plate 1 63 to rotate, and further drive the unfolding plate 2 64 connected to the unfolding plate 1 63 to rotate. The rotation of the unfolding plate 2 64 drives the stretching plate 66 to move, and synchronously drives the tarpaulin 3 to move.

[0038] As the stretching plate 66 moves, the traction rope 108 is stretched, and the winding wheel 106 is rotated synchronously. As the winding wheel 106 rotates, the driving shaft 104 is rotated. As the driving shaft 104 rotates, the interlocking gear 105 provided on the driving shaft 104 is rotated. As the interlocking gear 105 rotates, the driving gear 103 engaged with the interlocking gear 103 is rotated. As the driving gear 103 rotates, the driving tube 101 is rotated. The driving tube 101 rotates, and drives the support screw rod 4 threadedly connected thereto to move, thereby adjusting the extension of the support screw rod 4 to follow the unfolding state of the tarpaulin 3. The effect of length effectively improves the stability and safety of the tarpaulin 3 when it is unfolded. The setting of the limit ring 107 can prevent the traction rope 108 from deviating, and the advantage of the setting of the extrusion block 109 is that on rainy days, the moisture on the traction rope 108 can be discharged when the winding wheel 106 retracts the traction rope 108, thereby extending the service life of the traction rope 108. When the tarpaulin 3 needs to be retracted, the clockwork spring 1012 releases kinetic energy, pushing the drive tube 101 to rotate in the opposite direction, re-integrating the support screw 4 into the storage tube 94, and re-winding the traction rope 108 onto the winding wheel 106.

[0039] When the tarpaulin 3 is unfolded, the pushing rod 1115 is squeezed and the locking rod 1112 is simultaneously pushed out of the locking groove 1114 by the locking spring 1111, and the locking tooth 114 is disengaged from the limiting gear 111, thereby releasing the lock of the limiting gear 111. Example

[0040] See also Figure 14 , the present invention provides a technical solution: Different from Example 1, the traction rope 108 is a polypropylene rope. The traction rope 108 made of polypropylene has better waterproof performance and is resistant to ultraviolet corrosion, which can greatly improve the service life of the traction rope 108.

[0041] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0042] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A recreational vehicle, comprising a front portion (12) and a compartment (13), characterized in that: Also includes: The deformable expansion mechanism automatically supports and fixes the awning during the process of unfolding and retracting the awning.

2. The deformable expansion mechanism according to claim 1, comprising a mounting plate (1), a reel (2) and a tarpaulin (3) arranged on a carriage (13), characterized in that: Also includes: A supporting screw rod (4), the supporting screw rod (4) being arranged on the carriage (13) and supporting the tarpaulin (3) during the process of rolling up and unfolding the tarpaulin (3); An unfolding assembly (5), the unfolding assembly (5) being arranged on the carriage (13), and the tarpaulin (3) arranged on the carriage (13) being unfolded and reeled by the unfolding assembly (5); A reinforcement component (8) is provided on the carriage (13), and the reinforcement component (8) controls the support screw rod (4) to support the tarpaulin (3) when the tarpaulin (3) is rolled up and unfolded, and simultaneously adjusts the extension length of the support screw rod (4) according to the unfolding state of the tarpaulin (3).

3. The deformable expansion mechanism according to claim 2, characterized in that: The unfolding assembly (5) includes an extension member (6) arranged on the mounting plate (1), and the unfolding and reeling of the tarpaulin (3) are controlled by the extension member (6). The extension member (6) is provided with a driving member (7), and the driving member (7) provides power for the operation of the extension member (6).

4. The deformable expansion mechanism according to claim 3, characterized in that: The stretching member (6) includes a plurality of driving plates (61) arranged on the mounting plate (1), a rotating shaft (62) is rotatably arranged on the driving plate (61), one end of the rotating shaft (62) passes through the driving plate (61), an unfolding plate 1 (63) is arranged on the rotating shaft (62), an unfolding plate 2 (64) is rotatably arranged on the unfolding plate 1 (63), a rotating shaft (65) is rotatably arranged on the unfolding plate 2 (64), a stretching plate (66) is arranged on the rotating shaft (65), the stretching plate (66) is connected to one side of the tarpaulin (3), and the stretching plate (66) is an L-shaped plate.

5. The deformable expansion mechanism according to claim 4, characterized in that: The driving member (7) includes a driving worm wheel (71) arranged on a rotating shaft (62), a connecting plate (72) provided on the driving plate (61), a driving rod (73) rotatably provided on the connecting plate (72), two driving worms (74) used in conjunction with the driving worm wheel (71) provided on the driving rod (73), and the two driving worms (74) have opposite thread directions, a transmission rod (75) rotatably provided on the mounting plate (1), the transmission rod (75) being connected to the winding shaft (2), a driving pulley (76) provided on both the transmission rod (75) and the driving rod (73), a driving belt (77) provided on the driving pulley (76), and a driving motor (78) provided on the carriage (13), the output end of the driving motor (78) being connected to the transmission rod (75).

6. The deformable expansion mechanism according to claim 5, characterized in that: The reinforcement assembly (8) includes a support member (9) arranged on the carriage (13), and the tarpaulin (3) is supported and unfolded by the support member (9). The support member (9) is provided with a power member (10), and the extension length of the support screw rod (4) is synchronously adjusted by the power member (10) according to the unfolding state of the tarpaulin (3). The power member (10) is provided with a control member (11), and the support screw rod (4) is locked and fixed by the control member (11).

7. The deformable expansion mechanism according to claim 6, characterized in that: The support member (9) includes a support plate (91) provided on the carriage (13), a support shaft (92) rotatably provided on the support plate (91), a rotating block (93) provided on the support shaft (92), a receiving tube (94) provided on the rotating block (93), and the receiving tube (94) is slidably connected to the support screw (4). A support plate (95) is provided on the stretching plate (66), a support shaft (96) rotatably provided on the support plate (95), a rotating block (97) provided on the support shaft (96), and the rotating block (97) is connected to the support screw (4).

8. The deformable expansion mechanism according to claim 7, characterized in that: The power member (10) includes a driving tube (101) rotatably arranged on the storage tube (94), the driving tube (101) is threadedly connected to the support screw (4), a power bin (102) is arranged on the storage tube (94), the power bin (102) is rotatably connected to the driving tube (101), a driving gear (103) is arranged on the driving tube (101), a driving shaft (104) is rotatably arranged in the power bin (102), a linkage gear (105) used in conjunction with the driving gear (103) is arranged on the driving shaft (104), a winding wheel (106) is arranged on the driving shaft (104), a limiting ring (107) is arranged on the stretching plate (66), a traction rope (108) is wound around the winding wheel (106), and the traction rope (108) passes through the power bin (102) and the limiting ring (107) and is movably connected to the power bin (102) and the limiting ring (107), the traction rope (108) is connected to the mounting plate (1), the traction rope (108) is a nylon rope, an extrusion block (109) is provided on the power bin (102), the traction rope (108) passes through the extrusion block (109) and is movably connected to the extrusion block (109), a linkage shaft (1010) is rotatably provided on the power bin (102), the linkage shaft (1010) passes through the power bin (102) and is connected to the drive shaft (104), a clockwork box (1011) is provided on the outside of the power bin (102), the clockwork box (1011) is rotatably connected to the linkage shaft (1010), a clockwork spring (1012) is provided in the clockwork box (1011), and one end of the clockwork spring (1012) is connected to the linkage shaft (1010).

9. The deformable expansion mechanism according to claim 8, characterized in that: The control member (11) includes a limit gear (111) arranged on the drive shaft (104), a sliding groove (112) is provided on the power bin (102), a sliding rod (113) is slidably provided in the sliding groove (112), and a latch (114) is provided at one end of the sliding rod (113) located in the power bin (102) for use with the limit gear (111), a positioning plate (115) is provided on the power bin (102), a telescopic rod (116) is provided on the positioning plate (115), a push plate (117) is provided on the telescopic rod (116), and an extrusion spring (117) is sleeved on the telescopic rod (116). 118), a fixed block 1 (119) is provided on one end of the sliding rod (113) away from the latching tooth (114), a plurality of mounting grooves (1110) are provided on the fixed block 1 (119), a locking spring (1111) is provided in the mounting groove (1110), a locking rod (1112) is slidably provided in the mounting groove (1110), a fixed block 2 (1113) is provided on both sides of the sliding groove (112) on the power compartment (102), a locking groove (1114) for use with the locking rod (1112) is provided on the fixed block 2 (1113), and a pushing rod (1115) is slidably provided in the locking groove (1114).

10. The deformable expansion mechanism according to claim 9, characterized in that: The traction rope (108) is a polypropylene rope.

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