Folding structure, sleeping berth body and vehicle

Abstract

The invention relates to a folding structure, a sleeping berth body and a vehicle. The rope wheel mechanism comprises rope wheel assemblies symmetrically arranged on the two sides of the folding body, and each rope wheel assembly comprises a fixed pulley and a steel wire rope fixedly connected with one end of the folding body; the driving mechanism comprises a motor and a motor pulley, the steel wire rope bypasses the fixed pulley and is fixedly connected with the motor pulley, and the motor is connected with the motor pulley and is used for driving the steel wire rope to be wound or released, so that the folding body is folded or laid flat. According to the folding structure, the sleeping berth body and the vehicle, due to the fact that the rope wheel assemblies are arranged on the two sides of the folding body respectively, and the single driving mechanism is adopted to synchronously drive the steel wire ropes of the two rope wheel assemblies to conduct winding or releasing operation, stress distribution of the folding body in the folding or unfolding process can be more effectively balanced; and the stability and the reliability of the whole structure are improved.

Description

Technical Field

[0001] The present application relates to the field of vehicles, and in particular to a folding structure, a berth body and a vehicle. Background Art

[0002] In the field of commercial vehicles, the design of sleeper structures has always been one of the focuses, especially for long-distance commercial vehicles, where the comfort and versatility of sleepers directly affect the driver's rest quality and driving safety. Traditional commercial vehicle sleeper structures mostly adopt a fixed design, which occupies a large space and is not conducive to the flexible configuration of the vehicle's internal space.

[0003] In recent years, commercial vehicle sleeper design has made breakthrough progress, and foldable sleeper structures have emerged to improve space utilization and flexibility. This design includes one or more foldable or flippable sleeper sections, allowing the sleeper to be easily folded and stored when not in use, effectively saving space. However, most foldable sleepers on the market are manually operated or cylinder-driven. The former requires the driver to expend more effort and is not convenient enough; the latter takes up a lot of space and is expensive.

[0004] A RV compartment wall retracting and releasing device is disclosed in the related art, and the device includes a compartment wall, a compartment frame, a first fixed pulley, a second fixed pulley, a first pulley block, and a second pulley block. The first fixed pulley and the second fixed pulley are rotatably provided on both sides of the top of the compartment wall, and the first pulley block and the second pulley block correspond to the first fixed pulley and the second fixed pulley, and are fixed on both sides of the compartment frame, respectively. A winding drum is provided on the output shaft of the driving motor, and one end of the cable is fixed on the winding drum, and the other end passes through the first pulley block and the first fixed pulley in sequence, and then returns to the first pulley block, and then passes through the second pulley block and the second fixed pulley, and then returns and is fixed on the second pulley block. The winding drum is driven by the driving motor to rotate forward and backward, so as to realize the retraction and release of the cable, thereby completing the retracting and releasing operation of the compartment wall.

[0005] However, the above structure relies on only one cable passing through multiple pulleys to achieve the retraction and extension of the carriage wall, which has the problem of single force, resulting in poor stability of the entire retraction and extension process. Summary of the invention

[0006] The embodiments of the present application provide a folding structure, a berth body and a vehicle to solve the problem in the related art that only one cable is relied upon through multiple pulleys to realize the retraction and extension of the compartment wall, resulting in single force and poor stability.

[0007] In a first aspect, a folding structure is provided, comprising:

[0008] Folding body;

[0009] A rope pulley mechanism, comprising rope pulley assemblies symmetrically arranged on both sides of the folding body, the rope pulley assemblies comprising a fixed pulley and a steel wire rope fixedly connected to one end of the folding body;

[0010] The driving mechanism includes a motor and a motor pulley. The steel wire rope passes around the fixed pulley and is fixedly connected to the motor pulley. The motor is connected to the motor pulley and is used to drive the steel wire rope to wind or release, so that the folding body is folded or laid flat.

[0011] Since rope pulley assemblies are respectively arranged on both sides of the folding body, and a single driving mechanism is used to synchronously drive the steel wire ropes of the two rope pulley assemblies to perform winding or releasing operations, the folding and laying flat functions of the folding body are realized. Compared with the traditional design in which a single pull rope is passed through multiple pulleys to achieve the folding effect, this solution can more effectively balance the force distribution of the folding body during the folding or unfolding process. Therefore, the folding structure of the present application exhibits a more uniform force characteristic during the folding and laying flat process, thereby improving the stability and reliability of the overall structure.

[0012] In some embodiments, the output shaft of the motor is rotatably connected to an adjusting nut via a thread, and the motor pulley is fixedly connected to the output shaft of the motor via the adjusting nut.

[0013] In some embodiments, the pulley assembly also includes a fixed seat and a limit baffle, a fixed pulley locating pin is fixedly installed on the fixed seat, the fixed pulley is fixedly installed on the fixed pulley locating pin through a nut, and a limit block is fixedly installed on one end of the wire rope close to the folding body, and when the limit block contacts the limit baffle, the limit baffle prevents the limit block from bypassing the fixed pulley.

[0014] In some embodiments, the fixing seat is provided with a special-shaped hole, the limiting baffle is provided with a waist-shaped hole, and the limiting baffle is slidably connected to the fixing seat through the special-shaped hole and the waist-shaped hole.

[0015] In some embodiments, one of the rope pulley assemblies further includes two steering pulleys, and the steel wire rope passes around the steering pulleys and is fixedly connected to the motor pulley.

[0016] In some embodiments, at least one guide member is provided between the two diverting pulleys, and the steel wire rope passes through the guide member.

[0017] In some embodiments, a support base is further included, and when the folding body is laid flat, the folding body is placed on the support base.

[0018] In some embodiments, the folding body includes two mounting seats, a rotating shaft is fixedly installed between the two mounting seats, the folding body is rotatably connected to the rotating shaft, a fixing pin is fixedly installed at one end of the folding body away from the rotating shaft, and one end of the wire rope is fixedly connected to the fixing pin.

[0019] In a second aspect, a berth body is provided, comprising a folding structure.

[0020] In a third aspect, a vehicle is provided, comprising a berth body.

[0021] The embodiments of the present application provide a folding structure, a berth body and a vehicle. Since pulley assemblies are respectively arranged on both sides of the folding body, and a single driving mechanism is used to synchronously drive the steel wire ropes of the two pulley assemblies to perform winding or releasing operations, the folding and laying flat functions of the folding body are realized. Compared with the traditional design in which a single pull rope is passed through multiple pulleys to achieve the folding effect, the present solution can more effectively balance the force distribution of the folding body during the folding or unfolding process. Therefore, the folding structure of the present application exhibits a more uniform force characteristic during the folding and laying flat process, thereby improving the stability and reliability of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 A schematic diagram of the vehicle structure provided in an embodiment of the present application;

[0024] Figure 2 A schematic diagram of the sleeper body and vehicle structure provided in an embodiment of the present application;

[0025] Figure 3 A schematic diagram of the overall structure provided by an embodiment of the present application (without a folding body);

[0026] Figure 4 A schematic diagram of a folding structure in a flat state provided in an embodiment of the present application;

[0027] Figure 5 A schematic diagram of a folding state of a folding structure provided in an embodiment of the present application;

[0028] Figure 6 A partial schematic diagram of a rope pulley assembly provided in an embodiment of the present application;

[0029] Figure 7A partial schematic diagram of the driving mechanism provided in an embodiment of the present application.

[0030] In the figure: 1. vehicle; 2. folding body; 201. mounting seat; 202. rotating shaft; 203. fixing pin; 3. rope pulley assembly; 301. wire rope; 302. fixed pulley; 303. fixing seat; 304. limiting baffle; 305. fixed pulley locating pin; 306. limiting block; 307. special-shaped hole; 308. waist-shaped hole; 309. steering pulley; 310. guide member; 4. driving mechanism; 401. motor; 402. motor pulley; 403. adjusting nut; 5. supporting seat. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0032] The embodiment of the present application provides a folding structure, which can solve the problem in the related art that the retraction and extension of the carriage wall is achieved by relying on only one cable passing through multiple pulleys, resulting in single force and poor stability.

[0033] Embodiment 1:

[0034] The present application provides a folding structure, which comprises: a folding body 2;

[0035] The rope pulley mechanism comprises rope pulley assemblies 3 symmetrically arranged on both sides of the folding body 2, wherein the rope pulley assembly 3 comprises a fixed pulley 302 and a steel wire rope 301 fixedly connected to one end of the folding body 2;

[0036] The driving mechanism 4 includes a motor 401 and a pulley of the motor 401. The steel wire rope 301 passes around the fixed pulley 302 and is fixedly connected to the pulley of the motor 401. The motor 401 is connected to the pulley of the motor 401 and is used to drive the steel wire rope 301 to wind or release, so that the folding body 2 is folded or laid flat.

[0037] Figure 4 A schematic diagram of a folding structure in a flat state provided in an embodiment of the present application, Figure 5 A schematic diagram of the folding state of the folding structure provided in the embodiment of the present application is shown in FIG. Figure 4 and Figure 5As shown, the folding body 2 includes two mounting seats 201, a rotating shaft 202 is fixedly installed between the two mounting seats 201, the folding body 2 is rotatably connected to the rotating shaft 202, a fixing pin 203 is fixedly installed at one end of the folding body 2 away from the rotating shaft 202, and one end of the wire rope 301 is fixedly connected to the fixing pin 203.

[0038] In some embodiments, the folding structure also includes a support seat 5, which can be set on both sides of the folding body 2, can be set on the opposite side of the rotating axis 202, and can also be set at the center position of the folding body 2. As long as the folding body 2 is laid flat, the support seat 5 can provide support for the folding body 2.

[0039] Specifically, the rope pulley mechanism includes rope pulley assemblies 3 symmetrically arranged on both sides of the folding body 2, and the rope pulley assembly 3 includes a fixed pulley 302 and a steel wire rope 301, and the fixed pulley 302 is arranged above the folding body 2. The fixed pulley 302 adopts a low-friction, high-wear-resistant bearing structure to reduce the friction loss of the steel wire rope 301 on the pulley and improve the transmission efficiency. The steel wire rope 301 is woven with high-strength, low-elongation alloy steel wire to ensure that it can withstand large tension and long-term use without being easily broken.

[0040] Further, such as Figure 4 As shown, one end of the steel wire rope 301 of the right rope pulley assembly 3 is fixedly connected to the fixed pin 203 on the same side, and the other end passes around the fixed pulley 302 and is fixedly connected to the motor pulley 402. The left rope pulley assembly 3 also includes two diverting pulleys 309 and two guide members 310. The two guide members 310 are circular ring structures, which are arranged between the two diverting pulleys 309. The circular rings are made of stainless steel, and the surfaces are finely polished to reduce the friction of the steel wire rope. One end of the steel wire rope 301 is fixedly connected to the fixed pin 203, and the other end passes around the fixed pulley 302, the first diverting pulley 309, the two guide members 310, and the second diverting pulley 309 in sequence, and changes the direction of movement multiple times, and is fixedly connected to another motor pulley 402.

[0041] It should be noted that the steel wire ropes 301 of the two rope pulley assemblies 3 are respectively bypassed from the same side of the two motor pulleys 402 to ensure that when the motor 401 drives the motor pulley 402 to rotate, the steel wire rope 301 can be synchronously driven to be wound or released, thereby realizing the coordinated operation of the two sides of the folding body 2. This relatively simple rope pulley mechanism design can effectively control the cost while realizing the electric adjustable function, and has a high cost performance.

[0042] In order to ensure the safety and stability of the overall structure, Figure 6The partial schematic diagram of the rope pulley assembly provided in the embodiment of the present application, the rope pulley assembly 3 also includes a fixed seat 303 and a limit baffle 304, the fixed pulley 302 and the limit baffle 304 are fixed to the fixed seat by the fixed pulley positioning pin 305, and are fastened by nuts, ensuring the relative position stability of these components during use. The wire rope 301 passes through the gap between the fixed pulley 302 and the limit baffle 304, and a limit block 306 is set at one end of the wire rope 301 close to the fixed pin 203 according to the calculated distance. The limit block 306 is fixed on the wire rope 301 and has no relative movement with the wire rope 301.

[0043] During the folding process of the folding body 2, the limit block 306 moves with the steel wire rope 301. When the limit block 306 contacts the limit baffle 304, the entire movement process will be subject to greater resistance. The motor 401 is affected by the instantaneous high resistance and is powered off for protection, which then feeds back to the passenger that the folding process is complete. At the same time, the folding body 2 will be firmly fixed in the current position under the pulling force of the steel wire rope 301 without shaking. This limit mechanism ensures that the folding operation can be completed accurately and safely through a simple and effective design, and maintains the stability of the structure after the folding is completed.

[0044] In order to ensure that the limiting effect of the limiting block 306 is effective, Figure 6 As shown, a special-shaped hole 307 is provided on the fixing seat 303, and a waist-shaped hole 308 is provided on the limiting baffle 304. The limiting baffle 304 is slidably connected to the fixing seat 303 through the special-shaped hole 307 and the waist-shaped hole 308. The limiting baffle 304 slides up and down along the special-shaped hole to increase or decrease the distance between the limiting baffle 304 and the fixed pulley 302, and the limiting baffle 304 and the fixed pulley 302 are fixed on the fixed pulley positioning pin 305 by a nut. The position of the limiting baffle 304 can be set according to actual needs so that it can accurately block the movement of the limiting block 306. On the basis of the overall foldable structure, only one simple limiting block 306 is set to better solve the folding card point, and the cost is low, and the function is simple and reliable while ensuring the effective use function.

[0045] Figure 7 This is a partial schematic diagram of the driving mechanism provided in the embodiment of the present application. The driving mechanism 4 includes a motor 401 and two motor pulleys 402. The two motor pulleys 402 are fixedly connected to the output shaft of the motor 401. The other ends of the steel wire ropes 301 of the two rope pulley assemblies 3 are respectively fixedly connected to the motor pulleys 402. When the occupant finishes using the berth, the controller is operated to input a signal to the motor 401. The motor 401 drives the steel wire rope 301 to move. The steel wire rope 301 pulls the folding body 2 around the rotating shaft 202 to rotate and flip up, and finally reaches the folded state of the berth, completing a folding process.

[0046] As an implementation mode of the present application, keyways are respectively machined on the output shaft of the motor 401 and the hub of the motor pulley 402, and the key is installed in the keyway. The torque is transmitted through the key. When the output shaft of the motor 401 rotates, the key limits the relative rotation between the motor pulley 402 and the shaft, thereby causing the motor pulley 402 to rotate synchronously.

[0047] In order to ensure the consistency of the overall assembly state, the stretching length and stress conditions of the steel wire rope 301 of the two rope sheave assemblies 3 are guaranteed to be consistent, such as Figure 7 As shown, the two motor pulleys 402 are fixed to the output shaft of the motor 401 through two adjusting nuts 403. During the assembly of the two motor pulleys 402, firstly, the steel wire rope 301 on the left is adjusted to a reasonable state, and then the motor pulley 402 fixedly connected thereto is locked by using the adjusting nut 403. Then, after the steel wire rope 301 on the right is adjusted to a reasonable state, the motor pulley 402 fixedly connected thereto is locked by using another adjusting nut 403 to ensure that the overall assembly state is consistent.

[0048] This assembly and adjustment method can not only ensure the consistency of the structure during the initial assembly, but also in the later stage, when the wire rope 301 becomes fatigued and elongated due to long-term use, the overall mechanism can be adjusted by synchronously operating the above steps to ensure that the overall berth body can operate normally, thereby extending the service life of the entire folding structure.

[0049] The tightness of the wire rope 301 can be adjusted by using the motor pulley 402 and the standard adjustment nut 403, so as to achieve synchronous adjustment of the wire ropes 301 on both sides when the overall berth structure is assembled. It is also possible to more conveniently and effectively adjust the problems of insufficient tension of the wire rope 301 and loose wire rope caused by material properties during subsequent maintenance, thereby ensuring the normal use of the overall structure. This design fully considers the convenience of maintenance during long-term use and reduces maintenance costs and difficulties.

[0050] Working principle of the folding structure of the present invention:

[0051] The berth body can be in two states: flat state and folded state.

[0052] When the berth needs to be laid flat, the controller is operated to input a signal to the motor 401, and the motor 401 is operated to drive the motor pulley 402 to rotate, so that the wire rope 301 is released, and the folding body 2 rotates counterclockwise around the rotating shaft 202 set on the folding body 2 due to gravity and is lowered. The two support seats 5 and the two mounting seats 201 provide support to ensure that during normal use by the passengers, the berth body can remain stable and can bear the weight of the passengers, providing sufficient support for the passengers to ensure their comfort and safety;

[0053] When the passenger finishes using the berth, the controller is operated to input a signal to the motor 401. The motor 401 drives the motor pulley 402 to rotate in the opposite direction, so that the wire rope 301 is wound. The wire rope 301 pulls the folding body 2 to rotate clockwise around the rotating shaft 202 set on the folding body 2 and flip it up. The limit block 306 moves with the wire rope 301. When the limit block 306 contacts the limit baffle 304, the entire movement process will be subject to greater resistance. Due to the influence of instantaneous high resistance, the motor 401 is powered off for protection, and then feedback is given to the passenger that the folding process has been completed, and finally the berth reaches the folded state.

[0054] Since the rope pulley assemblies 3 are respectively arranged on both sides of the folding body 2, and a single driving mechanism 4 is used to synchronously drive the steel wire ropes 301 of the two rope pulley assemblies 3 to perform winding or releasing operations, the folding and laying flat functions of the folding body 2 are realized. Compared with the traditional design that uses a single pull rope to pass through multiple pulleys to achieve the folding effect, this solution can more effectively balance the force distribution of the folding body 2 during the folding or unfolding process. Therefore, the folding structure of the present application exhibits a more uniform force characteristic during the folding and laying flat process, thereby improving the stability and reliability of the overall structure.

[0055] Embodiment 2:

[0056] The present application provides a sleeper body, which includes the folding structure in the above-mentioned embodiment 1. As an important component for passengers to rest in transportation tools (such as trains, long-distance buses, commercial vehicles, etc.), the comfort and convenience of the sleeper body are crucial to improving the passengers' travel experience. Traditional sleeper bodies often have problems such as uneven force and complicated operation during folding and unfolding, which affects their stability and reliability in use.

[0057] The berth body provided in this embodiment effectively solves the above-mentioned problem by adopting the folding structure described in Embodiment 1. Specifically, the berth body includes a folding body 2 , which is connected to two mounting seats 201 via a rotating shaft 202 and can rotate around the rotating shaft 202 .

[0058] On both sides of the folding body 2, rope pulley assemblies 3 are respectively arranged, and each rope pulley assembly 3 includes a fixed pulley 302 and a steel wire rope 301. One end of the steel wire rope 301 is connected to the fixing pin 203 on the folding body 2, and the other end is connected to the motor pulley 402 after passing the fixed pulley 302.

[0059] When the berth body needs to be unfolded for the passengers to rest, the controller is operated to input a signal to the motor 401, and the motor 401 drives the motor pulley 402 to rotate, so that the steel wire rope 301 is released. The folding body 2 rotates counterclockwise around the rotating shaft 202 under the action of gravity and is lowered, and is stably supported by the two support seats 5 and the two mounting seats 201. In this way, the berth body can remain stable and can bear the weight of the passengers, providing a comfortable resting environment for the passengers.

[0060] When the passenger finishes using the berth, the controller is operated to input a signal to the motor 401 again, and the motor 401 drives the motor pulley 402 to rotate in the opposite direction, so that the wire rope 301 is wound. The wire rope 301 pulls the folding body 2 to rotate clockwise around the rotating shaft 202 and flip up until the limit block 306 contacts the limit baffle 304. The motor 401 is powered off due to the instantaneous high resistance, and the folding process is fed back to the passenger. At this time, the berth body has been folded to the stowed state, and the space occupied is greatly reduced, which is convenient for the passenger to carry out other activities or to make room for other passengers.

[0061] Since the berth body of this embodiment adopts the folding structure in Embodiment 1, it has the advantages of uniform force, simple operation, high stability, etc. At the same time, through the coordinated use of the motor 401 and the rope pulley assembly 3, the electric folding and unfolding function of the berth body is realized, which improves the convenience and comfort of use. In addition, the design of the limit block 306 and the limit baffle 304 also ensures the accuracy and safety of the folding process.

[0062] Embodiment 3:

[0063] The present application provides a vehicle, which includes the sleeper body in the above-mentioned embodiment 2. Figure 1 This is a schematic diagram of the vehicle structure provided by the embodiment of the present application, taking a single-row high-top light vehicle as an example to illustrate the spatial configuration relationship between the sleeper body and the vehicle. It is worth noting that this sleeper body is not limited to this example vehicle model, but has a wide range of applicability and can be flexibly installed in different positions of various vehicle models, without being limited by the specific vehicle model and installation position shown in the figure.

[0064] Specific reference Figures 1 to 3 The sleeper body is arranged in the cab of the vehicle 1, specifically in the upper part of the main driver's seat and the co-driver's seat and the lower area of ​​the high roof structure. The cab sheet metal structure provides the fixing points of the structure of the present application to ensure its stability in use. The occupants only need to operate the operation buttons set in the cab to complete the above operations, which greatly increases the human-machine operability and convenience, and provides a better experience, which can effectively enhance the market competitiveness of the product.

[0065] Figure 2 and Figure 3They are respectively a schematic diagram of the berth body and vehicle structure provided in the embodiment of the present application, and a schematic diagram of the overall mechanism provided in the embodiment of the present application (without the folding body). The folding structure includes a folding body 2, a rope pulley assembly 3, a driving mechanism 4 and a support seat 5. The folding body 2 is used for passengers to sit or rest. The folding body 2 is made of lightweight and high-strength materials (such as aluminum alloy or carbon fiber composite materials) to reduce the overall weight while improving the structural strength and durability. The driving mechanism 4 drives the rope pulley assembly 3 to drive the folding body 2 to be laid flat and folded. When the folding body 2 is laid flat, the folding body 2 is placed on the support seat 5, and the support seat 5 is fixedly connected to the vehicle 1. The support seat 5 is provided with reinforcing ribs to increase the rigidity of the support seat 5.

[0066] It should be pointed out that the fixed connection between the support base 5 and the vehicle 1 mentioned in the present embodiment is not limited to a specific connection form, and the connection may include various specific connection forms such as bolt connection, welding, or riveting.

[0067] The folding body 2 is mainly composed of two mounting seats 201, a rotating shaft 202 and a fixing pin 203. The mounting seats 201 are fixedly connected to the vehicle 1, the rotating shaft 202 is fixedly installed between the two mounting seats 201, one end of the folding body 2 is rotatably connected to the rotating shaft 201, and the fixing pins 203 are fixedly installed on both sides of the end of the folding body 2 away from the rotating shaft 202. The mounting seats 201 and the rotating shaft 202 are made of wear-resistant and corrosion-resistant materials to ensure stability and reliability in long-term use.

[0068] The fixed connection method between the mounting base 201 and the vehicle 1 mentioned here is not single and limited, and covers a variety of effective specific connection methods. For example, the more commonly used bolt connection method can ensure the connection strength while also having a certain degree of detachability, which is convenient for subsequent maintenance and adjustment; the welding method can achieve a permanent and firm connection between the mounting base 201 and the vehicle 1 structure, and the integrity and stability of the connection are relatively strong.

[0069] In other embodiments, the folding body 2 can be rotatably connected to the sheet metal structure of the vehicle 1 by a hinge connection. Compared with the two embodiments, the rotating shaft can withstand a larger torque and is less likely to shake or deviate, making the folding process more stable and suitable for large vehicles.

[0070] Figure 6 A partial schematic diagram of the pulley assembly provided in an embodiment of the present application shows the installation relationship between the pulley assembly 3 and the vehicle 1. The pulley assembly 3 also includes a fixed seat 303 and a limit baffle 304. The fixed seat 303 is fixed to the sheet metal structure of the cab of the vehicle 1 by two bolts. The remaining structure is consistent with that in Example 1.

[0071] Figure 7A partial schematic diagram of the driving mechanism provided in an embodiment of the present application shows the installation relationship between the driving mechanism 4 and the vehicle 1. The driving mechanism 4 includes a motor 401 and two motor pulleys 402. The motor 401 is fixed to the sheet metal structure of the cab by four bolts, ensuring the reliable installation of the motor 401 on the vehicle 1. The remaining structure is consistent with that in Example 1.

[0072] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0073] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0074] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A folding structure, characterized in that: It includes: Folding body (2); A rope pulley mechanism, comprising rope pulley assemblies (3) symmetrically arranged on both sides of the folding body (2), the rope pulley assembly (3) comprising a fixed pulley (302) and a steel wire rope (301) fixedly connected to one end of the folding body (2); The driving mechanism (4) comprises a motor (401) and a motor pulley (402); the steel wire rope (301) passes around the fixed pulley (302) and is fixedly connected to the motor pulley (402); the motor (401) is connected to the motor pulley (402) and is used to drive the steel wire rope (301) to be wound or released, so that the folding body (2) is folded or laid flat.

2. The folding structure according to claim 1, characterized in that: The output shaft of the motor (401) is rotatably connected to an adjusting nut (403) via a thread, and the motor pulley (402) is fixedly connected to the output shaft of the motor (401) via the adjusting nut (403).

3. The folding structure according to claim 1, characterized in that: The rope pulley assembly (3) further comprises a fixed seat (303) and a limit baffle (304); a fixed pulley positioning pin (305) is fixedly mounted on the fixed seat (303); the fixed pulley (302) is fixedly mounted on the fixed pulley positioning pin (305) via a nut; a limit block (306) is fixedly mounted on one end of the steel wire rope (301) close to the folding body (2); when the limit block (306) contacts the limit baffle (304), the limit baffle (304) prevents the limit block (306) from bypassing the fixed pulley (302).

4. The folding structure according to claim 3, characterized in that: The fixing seat (303) is provided with a special-shaped hole (307), the limiting baffle (304) is provided with a waist-shaped hole (308), and the limiting baffle (304) is slidably connected to the fixing seat (303) via the special-shaped hole (307) and the waist-shaped hole (308).

5. The folding structure according to claim 1, characterized in that: One of the rope pulley assemblies (3) further comprises two steering pulleys (309), and the steel wire rope (301) passes around the steering pulleys (309) and is fixedly connected to the motor pulley (402).

6. The folding structure according to claim 5, characterized in that: At least one guide member (310) is provided between the two diverting pulleys (309), and the steel wire rope (301) passes through the guide member (310).

7. The folding structure according to claim 1, characterized in that: It also comprises a support seat (5), and when the folding body (2) is laid flat, the folding body (2) is placed on the support seat (5).

8. The folding structure according to claim 1, characterized in that: The foldable body (2) comprises two mounting seats (201), a rotating shaft (202) is fixedly mounted between the two mounting seats (201), the foldable body (2) is rotatably connected to the rotating shaft (202), a fixing pin (203) is fixedly mounted on one end of the foldable body (2) away from the rotating shaft (202), and one end of the steel wire rope (301) is fixedly connected to the fixing pin (203).

9. A berth body, characterized in that: Comprising the folding structure according to any one of claims 1 to 8.

10. A vehicle, characterized in that: Comprising a berth body as described in claim 9.

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